A left-right combined welding cable clamp and forming method thereof

Abstract

This invention discloses a left-right combined welded cable clamp and its forming method. The cable clamp includes a left half and a right half, which are integrally formed from steel plates by molding, each having a semi-annular clamp wall and an outwardly folded ear plate at the bottom of the corresponding clamp wall. An upper pressure-bearing part is welded to the top of the clamp wall of the left half, and a lower pressure-bearing part is welded to the outer side of the transition between the clamp wall and the ear plate. Similarly, an upper pressure-bearing part is welded to the top of the clamp wall of the right half, and a lower pressure-bearing part is welded to the outer side of the transition between the clamp wall and the ear plate. The left and right halves of the cable clamp are connected together in a left-right combination to form a cable hole capable of threading and clamping the main cable of a suspension bridge. This invention uses steel plates as raw materials for molding the cable clamp, effectively avoiding the technical defects of casting materials while also taking into account the advantages of mold forming to a certain extent. Furthermore, it exhibits good overall rigidity and a stable stress structure.

Description

Technical Field

[0001] The invention relates to a stressed cable clamp of a suspension bridge, in particular to a left-right combined welded cable clamp and a manufacturing method of the cable clamp. Background Art

[0002] In the suspension bridge structure, the cable clamp is the key load-bearing component that connects the bridge deck suspenders / hangers to the main cables. Its load-bearing reliability and long-term service life are directly related to the safety of the suspension bridge.

[0003] In terms of molding process, the common cable clamp molding structures include cast cable clamps and welded cable clamps.

[0004] Among them, compared with the welded cable clamp, the cast cable clamp has a simple straight hole structure, a more complex curved structure, or a broken line structure with a certain angle due to the mold-sand casting. In other words, the cable hole of the cast cable clamp can be realized in a variety of structural forms according to the specific technical requirements of the mold design. However, due to the slow condensation molding process of the molten steel in the mold, the internal structure of the molded blank of the cast cable clamp is a relatively loose casting state. At the same time, it is inevitable that casting defects such as pores, slag inclusions, shrinkage, shrinkage, cracks, etc. will occur during the casting process; therefore, the cast cable clamp has the technical defects of the casting material.

[0005] Compared with cast cable clamps, welded cable clamps use steel plates as raw materials to form cable clamps, which effectively avoids the technical defects of casting materials. They have the technical characteristics of low molding technology difficulty, high molding efficiency, low molding cost, and a wide temperature resistance range.

[0006] However, with steel plate welded cable clamps, the steel plate is usually rolled into a semi-circular cable clamp half body, and the cable hole formed between the combined and connected cable clamp halves can only be a simple straight hole structure (such as equal diameter straight holes or variable diameter straight holes, etc.), and it is impossible to form a curved cable hole that matches the catenary of the main cable of the suspension bridge. Therefore, the axial length of the welded cable clamp formed by steel plate integration (mainly axial) is usually relatively short. If it is too long, it cannot match the catenary line of the main cable, which will affect the stability and force safety of the cable clamp connection on the main cable; in order to increase the axial length, the usual practice is to combine and connect the cable clamp halves in axial sections, which is technically difficult and has poor stability. For example, Chinese patent documents disclose technologies such as “welded cable clamp” (publication number CN 210797267 U, publication date June 19, 2020) and “a welded combined cable clamp” (publication number: CN 204112221 U, publication date: January 21, 2015).

[0007] In addition, in order to meet the technical requirements of rolling and rolling, these cable clamp halves made of steel plates can only form a semi-circular cable clamp wall in one piece, and cannot form an ear plate on the cable clamp wall in one piece, so that the ear plate is welded separately to one of the semi-circular cable clamp walls, and the cable clamp wall with the ear plate and the other matching cable clamp wall can only form a top-bottom combined connection, that is, a top-bottom combined welded cable clamp. This type of cable clamp has the following main technical problems:

[0008] 1. The force of the lower half of the cable clamp is transmitted to the upper half of the cable clamp through the cable clamp bolt pair. In addition to bearing the clamping force of the cable clamp, the cable clamp bolt pair also needs to bear the downward pulling force from the sling. The complex force system will cause a large difference in the pressure between the upper and lower halves of the cable clamp on the main cable, and even cause a gap between the lower half of the cable clamp and the main cable, thereby affecting the anti-slip performance of the cable clamp on the main cable;

[0009] 2. For the upper and lower combined cable clamp, in order not to damage the cable clamp wall, the arrangement position of the cable clamp bolt pair is relatively large from the lateral dimension of the cable hole center. Under the influence of the force transmission chain, a large additional bending moment will be generated on the pressure-bearing part of the cable clamp, and the stress in the connection transition area between the pressure-bearing part of the cable clamp and the arc wall of the cable clamp will increase significantly. The pressure-bearing part of the cable clamp will be deformed to a certain extent. When the locking force of the cable clamp bolt pair remains unchanged, the clamping force between the cable clamp and the main cable will be reduced, resulting in a lower overall locking strength between the upper half of the cable clamp and the lower half of the cable clamp to the main cable;

[0010] 3. The ear plate is welded to the bottom of the lower half of the cable clamp, thereby directly forming a weld force transmission in the force transmission chain between the bridge deck and the main cable. Due to the influence of welding residual stress on the load-bearing structure, the performance of the steel plate formed cable clamp is limited, and the load-bearing structure is unstable. Summary of the invention

[0011] The technical purpose of the present invention is to provide a left-right combined welded cable clamp with steel plates as raw materials, the contour of the cable hole formed meets various technical requirements including more complex curves, and has a simple forming structure, low forming technology difficulty, high forming efficiency, low forming cost, reliable overall locking strength, and a stable force-bearing structure, as well as a forming method for the welded cable clamp, in view of the particularity of the cable clamp in the above-mentioned suspension bridge structure and the shortcomings of the prior art.

[0012] The technical solution adopted by the present invention to achieve its technical purpose is a left-right combined welding cable clamp, comprising a left half of the cable clamp and a right half of the cable clamp;

[0013] The left half of the cable clamp is formed by molding a steel plate in one piece, and has a semi-circular left cable clamp wall and a left ear plate folded outward at the bottom of the left cable clamp wall;

[0014] A left upper pressure-bearing portion convexly formed on the top of the left side cable clamp wall of the left half of the cable clamp is welded;

[0015] The left half upper pressure-bearing part is mainly composed of a left side outer plate of the upper pressure-bearing part and a left side inner plate of the upper pressure-bearing part which are welded and arranged at intervals on the left and right sides, and a plurality of left side ribs of the upper pressure-bearing part which are welded and arranged at intervals between the left side outer plate of the upper pressure-bearing part and the left side inner plate of the upper pressure-bearing part along the length direction of the left half of the cable clamp;

[0016] On the left upper pressure-bearing part, a plurality of bolt holes are arranged at intervals along the length direction, and the forming track of each bolt hole passes through the gap of the left upper pressure-bearing part;

[0017] A left lower pressure-bearing portion with an outwardly convex shape is welded on the outer side of the transition between the left cable clamp wall and the left ear plate of the left half of the cable clamp;

[0018] The left half lower pressure-bearing part is mainly composed of a plurality of lower pressure-bearing part left ribs welded and arranged at intervals along the length direction of the left half of the cable clamp, and a lower pressure-bearing part left outer plate welded to the outer side of each lower pressure-bearing part left rib;

[0019] On the left lower pressure-bearing part, a plurality of bolt holes are arranged at intervals along the length direction, and the forming track of each bolt hole passes through the gap of the left lower pressure-bearing part;

[0020] The right half of the cable clamp is formed by molding a steel plate in one piece, and has a semi-circular right cable clamp wall and a right ear plate folded outward at the bottom of the right cable clamp wall;

[0021] A right half upper pressure-bearing portion with an outwardly convex shape is welded at the top of the right side cable clamp wall of the right half of the cable clamp;

[0022] The right half upper pressure-bearing part is mainly composed of an upper pressure-bearing part right outer plate and an upper pressure-bearing part right inner plate which are welded and arranged at intervals on the left and right, and a plurality of upper pressure-bearing part right rib plates which are welded and arranged between the upper pressure-bearing part right outer plate and the upper pressure-bearing part right inner plate at intervals along the length direction of the right half of the cable clamp;

[0023] On the right upper pressure-bearing part, a plurality of bolt holes are arranged at intervals along the length direction, and the forming track of each bolt hole passes through the gap of the right upper pressure-bearing part;

[0024] A right half lower pressure-bearing portion with an outwardly convex shape is welded on the outer side of the transition between the right side cable clamp wall and the right side ear plate of the right half of the cable clamp;

[0025] The right half lower pressure-bearing part is mainly composed of a plurality of right side ribs of the lower pressure-bearing part welded and arranged at intervals along the length direction of the right half of the cable clamp, and a right side outer plate of the lower pressure-bearing part welded on the outer side of each right side rib of the lower pressure-bearing part;

[0026] On the right lower pressure-bearing part, a plurality of bolt holes are arranged at intervals along the length direction, and the forming track of each bolt hole passes through the gap of the right lower pressure-bearing part;

[0027] The left half of the cable clamp and the right half of the cable clamp are combined together in a left-right position, and through the one-to-one matching bolt holes between the upper pressure-bearing part of the left half and the upper pressure-bearing part of the right half, and the one-to-one matching bolt holes between the lower pressure-bearing part of the left half and the lower pressure-bearing part of the right half, the multiple cable clamp bolt pairs installed are connected into a whole, and surround a cable hole capable of installing and holding the main cable of the suspension bridge;

[0028] On the main cable of the suspension bridge, the left ear plate of the left half of the cable clamp and the right ear plate of the right half of the cable clamp are used to connect the slings / suspenders of the suspension bridge.

[0029] The above technical measures use steel plates as raw materials to form cable clamps, which effectively avoids the technical defects of casting materials and has technical characteristics such as low molding technology difficulty, high molding efficiency, low molding cost, and a wide temperature resistance range.

[0030] The steel plate is integrally molded into a left half / right half of a cable clamp having a semi-circular cable clamp wall and an outer folding ear plate. The inner hole of the molded cable clamp wall can be flexibly determined according to the design technical requirements. The contour structure of the cable hole surrounded by the left half of the cable clamp and the right half of the cable clamp can be a straight hole structure, a more complex curved structure, or a broken line structure with a certain angle, which is conducive to the integrated increase of the axial length of the steel plate molded cable clamp, so that the axially longer steel plate molded cable clamp effectively matches the catenary line of the main cable of the suspension bridge. At the same time, the ear plate and the corresponding cable clamp wall are integrally molded, which effectively eliminates the direct force transmission of the weld in the force transmission chain between the bridge deck and the main cable, which is conducive to the performance of the steel plate molded cable clamp, and the overall rigidity is reliable and the force-bearing structure is stable.

[0031] The above-mentioned technical measures form a lower pressure-bearing part composed of a rib plate and an outer plate on the outside of the transition between the cable clamp wall and the ear plate. The lower pressure-bearing part can not only be used as a direct combined connection between the left and right halves of the cable clamp, but also form a reliable backing for the ear plate at the bottom bending part of the cable clamp wall, so that the ear plate can achieve high-strength and stable forming at the bottom of the corresponding cable clamp wall, and the stressed ear plate will not be deformed at the bottom bending part of the corresponding cable clamp wall. The overall rigidity of the left half / right half of the cable clamp is better, the overall rigidity of the cable clamp as a whole is also better, and the force-bearing structure is more stable.

[0032] The above technical measures connect the left and right half of the cable clamp together in a left-right combination through a plurality of cable clamp bolt pairs installed on the corresponding upper and lower pressure-bearing parts of the left and right half of the cable clamp. In addition to the above technical advantages, compared with the upper and lower combination connection, it also has the following main technical advantages:

[0033] 1. The force transmission chain between the bridge deck and the main cable is formed at the cable clamp, and the ear plate directly transmits force to the corresponding cable clamp wall. The cable clamp bolt pair only serves as the left and right halves of the main cable to hold and lock, and does not directly participate in the force transmission from the ear plate to the corresponding cable clamp wall. That is, the cable clamp bolt pair does not directly participate in the force transmission chain between the bridge deck and the main cable. The technical requirements for the force strength and performance of the cable clamp bolt pair are relatively low, which is conducive to downgrading the molding structure and molding materials of the cable clamp bolt pair, thereby helping to reduce the cost of the cable clamp bolt pair;

[0034] 2. The bolt pair of the cable clamp is located in the vertical upper and lower areas of the cable clamp hole, which is less affected by the force transmission chain between the bridge deck and the main cable, and is conducive to improving the overall locking strength between the left half of the cable clamp and the right half of the cable clamp;

[0035] 3. The cable clamp bolt pair forms a lateral left and right tensioning force on the cable clamp, which is less affected by the force transmission chain between the bridge deck and the main cable. The tension on the left and right areas of the cable clamp bolt pair is basically balanced, and the force-bearing structure is stable.

[0036] In summary, the above-mentioned technical measures are aimed at the particularity of the cable clamps in the suspension bridge structure. The steel plates are used as raw materials. The contours of the formed cable holes meet various technical requirements including more complex curves. At the same time, they have the technical characteristics of simple forming structure, low forming technology difficulty, high forming efficiency, low forming cost, reliable overall locking strength, and stable force-bearing structure.

[0037] As one of the preferred solutions, when the left half of the cable clamp and the right half of the cable clamp are connected together in a left-right combination, the left ear plate of the left half of the cable clamp and the right ear plate of the right half of the cable clamp are non-contactly matched with a reserved spacing;

[0038] A left half docking portion extending toward the right half of the cable clamp is welded to the inner side of the transition between the left cable clamp wall and the left ear plate of the left half of the cable clamp, and the left half docking portion at least has a left arc-shaped plate of the docking portion matching the inner contour of the left semicircle of the cable clamp;

[0039] A right half docking portion extending toward the left half of the cable clamp is welded to the inner side of the transition between the right side cable clamp wall and the right side ear plate of the right half of the cable clamp, and the right half docking portion at least has a right side arc plate of the docking portion matching the inner contour of the right half semicircle of the cable clamp;

[0040] Between the bottom of the left half of the cable clamp and the right half of the cable clamp connected together in a left-right combination, the left half docking part and the right half docking part are docked and transitioned, and the docking seam is between the left ear plate and the right ear plate, forming a full-circular structural cable hole that can pass through and hold the main cable of the suspension bridge.

[0041] The above-mentioned technical measures, on the basis of the ear plate of the left half / right half of the cable clamp and the corresponding cable clamp wall being integrally formed by molding, the ear plates of the left half and the right half of the cable clamp combined in the left and right positions are non-contact matched with a reserved spacing, that is, there is no need for the two cable clamp halves with ear plates to form a cable hole of a full circular structure with each other through their own ear plates, so that the bending forming angle of the ear plate on the corresponding cable clamp wall is larger, the transition between the cable clamp wall and the corresponding ear plate is smooth, the stress distribution at the root of the ear plate is more uniform, and fatigue damage is not easy to occur, thereby reliably improving the overall rigidity of the cable clamp and the stability of the load-bearing structure is good.

[0042] The above technical measures, through the docking transition between the left half docking part and the right half docking part, on the one hand, reliably ensure the non-contact fit of the ear plates between the combined left half and the right half of the cable clamp with a reserved spacing; on the other hand, the cooperation of the left half and the right half of the cable clamp forms a tight connection with the main cable of the suspension bridge, which not only improves the reliability of the connection with the main cable, but also can effectively protect the main cable from attack.

[0043] Furthermore, the left half docking portion is mainly composed of a left side arc plate of the docking portion and a left side support plate of the docking portion which are welded and arranged at intervals in the upper and lower positions, and a plurality of left side rib plates of the docking portion which are welded and arranged at intervals between the left side arc plate of the docking portion and the left side support plate of the docking portion along the length direction of the left half of the cable clamp;

[0044] The forming track of each bolt hole on the left lower pressure-bearing part passes through the gap of the left half abutting part;

[0045] The right half docking part is mainly composed of a right side arc plate of the docking part and a right side support plate of the docking part, which are welded and arranged at intervals in the upper and lower positions, and a plurality of right side rib plates of the docking part, which are welded and arranged between the right side arc plate of the docking part and the right side support plate of the docking part at intervals along the length direction of the right half of the cable clamp;

[0046] The forming tracks of the bolt holes on the right half lower pressure-bearing part pass through the gap of the right half abutting part.

[0047] The docking structure of the above technical measures has high structural strength and can reliably withstand the clamping force of the main cable with a large moment. Under the clamping force, the arc plate will not be deformed or broken on the corresponding cable clamp half, and the force-bearing structure has good stability. At the same time, it can further reliably ensure that the ear plates between the combined left and right cable clamps are non-contactly matched with a reserved spacing.

[0048] In addition, the matching structure of the bolt hole forming trajectory of the docking portion and the corresponding lower pressure-bearing portion is conducive to increasing the locking force of the cable clamp bolt pair, thereby improving the connection strength of the cable clamp on the main cable, and at the same time effectively avoiding deformation between the ear plates arranged at intervals due to excessive locking force of the cable clamp bolt pair.

[0049] Furthermore, when the left half of the cable clamp and the right half of the cable clamp are connected together in a left-right combination, the butt joint edge of the left arc plate of the butt joint part and the butt joint edge of the right arc plate of the butt joint part are matched with each other by a concave-convex stopper structure. This technical measure can achieve a stable, accurate and reliable butt joint combination between the left and right arc plates, which can not only avoid the possible misalignment between the two butt joint arc plates in the axial direction, but also further improve the overall structural strength and force stability of the cable clamp.

[0050] As one of the preferred solutions, when the left half of the cable clamp and the right half of the cable clamp are connected together in a left-right combination, the butt joint edge of the top of the left cable clamp wall of the left half of the cable clamp and the butt joint edge of the top of the right cable clamp wall of the right half of the cable clamp are matched with each other in a concave and convex stopper structure;

[0051] The left upper pressure-bearing portion of the left half of the cable clamp is formed at the inner edge of the concave-convex stopper at the top of the left cable clamp wall;

[0052] The right upper pressure-bearing portion of the right half of the cable clamp is formed at the inner edge of the concave-convex stopper at the top of the right cable clamp wall.

[0053] The above technical measures can achieve a stable, accurate and reliable docking combination between the left and right cable clamp halves, which not only avoids possible axial misalignment between the docked cable clamp halves, but also can further improve the overall structural strength and force stability of the cable clamp.

[0054] As one of the preferred solutions, a left cover plate of the upper pressure-bearing part is welded on the top of the left half upper pressure-bearing part, and the left cover plate of the upper pressure-bearing part respectively blocks the gaps of the left half upper pressure-bearing part;

[0055] A right side cover plate of the upper pressure-bearing part is welded to the top of the right half upper pressure-bearing part, and the right side cover plate of the upper pressure-bearing part blocks the gaps of the right half upper pressure-bearing part respectively.

[0056] The above technical measures, by sealing the internal gap opening of the upper pressure-bearing part with the corresponding cover plate, can effectively isolate the internal structure from erosion by external rainwater and other debris, and effectively protect structures including cable clamp bolt pairs.

[0057] A molding method for the above-mentioned left-right combined welded cable clamp, the molding method comprises separately molding the left half of the cable clamp and the right half of the cable clamp;

[0058] The molding method of the left half of the cable clamp comprises the following specific process steps:

[0059] Step 1. Select a steel plate with a thickness of 30-50 mm and a carbon content of ≤0.18%;

[0060] Cut the material according to the design structure and size of the base of the left half of the cable clamp, and reserve processing allowance when cutting;

[0061] Cut the materials according to the design structure and size of the upper pressure-bearing part, lower pressure-bearing part and docking part of the left half of the cable clamp, and reserve processing allowance when cutting;

[0062] On the molding machine, the molding structure is designed according to the base body of the left half of the cable clamp, and a molding cavity is opened;

[0063] Step 2. Place the sheet material of the left half of the base of the formed cable clamp in the corresponding molding cavity of the molding machine;

[0064] Perform multiple molding processes until a semi-circular cable clamp wall portion and an ear plate portion folded outward at the bottom of the cable clamp wall are formed on the sheet material, thereby obtaining a rough base product of the left half of the cable clamp;

[0065] The curved plate material at the butt joint is curled according to the curvature structure of the designed curved plate;

[0066] Step 3. The fitter performs a shaping process on the rough base of the left half of the cable clamp until the base of the left half of the cable clamp meets the design requirements of the cable clamp wall fine structure and ear plate fine structure;

[0067] Step 4. On the inner side of the cable clamp wall of the left half of the cable clamp, weld and arrange multiple sets of arc-shaped code plates at intervals along the length direction;

[0068] Step 5. Weld the outer plate, inner plate and rib plate of the upper pressure-bearing part to the preset position at the top of the cable clamp wall according to the designed molding structure;

[0069] The outer plate and rib plate of the lower pressure-bearing part are welded to the preset position outside the transition between the cable clamp wall and the ear plate according to the designed forming structure;

[0070] Step 6. Weld the outer plate of the upper pressure-bearing part and the outer plate of the lower pressure-bearing part respectively by full penetration welding, so that the outer plate of the upper pressure-bearing part and the outer plate of the lower pressure-bearing part are respectively connected to the base of the left half of the cable clamp;

[0071] The inner plate and the rib plate of the upper pressure-bearing part and the rib plate of the lower pressure-bearing part are welded by fillet welding respectively, so that the inner plate of the upper pressure-bearing part is connected to the base of the left half of the cable clamp, the rib plate of the upper pressure-bearing part is connected to the inner plate and the outer plate of the upper pressure-bearing part and the base of the left half of the cable clamp, and the rib plate of the lower pressure-bearing part is connected to the outer plate of the lower pressure-bearing part and the base of the left half of the cable clamp;

[0072] During the welding process of the current plate, the middle area is used as the welding starting point and the welding is advanced toward both ends;

[0073] During the penetration welding process, the weld on each side of the current plate body is realized by at least two layers of welding, and the welding layers on both sides of the current plate body are performed layer by layer in an alternating manner;

[0074] During fillet welding, the welding is advanced symmetrically on both sides of the current plate;

[0075] During the entire welding process, after each layer of welding is completed, the weld layer is subjected to 0.6-1.0MPa compressed air pneumatic vibration to eliminate the stress of the weld layer for 1-2 minutes;

[0076] Until the upper pressure-bearing part is convexly formed at the top of the cable clamp wall, and the lower pressure-bearing part is convexly formed at the outer side of the transition between the cable clamp wall and the ear plate;

[0077] Step 7. Weld the arc plate, support plate and rib plate of the docking part to the preset position inside the transition between the cable clamp wall and the ear plate according to the designed forming structure;

[0078] Step 8. Weld the arc plate of the butt joint to the left half of the cable clamp base by full penetration welding;

[0079] The support plate and the rib plate of the butt joint are respectively welded by fillet welding, so that the support plate is connected to the base of the left half of the cable clamp, and the rib plate is connected to the arc plate and the support plate of the butt joint, and the base of the left half of the cable clamp;

[0080] During the welding process of the current plate, the middle area is used as the welding starting point and the welding is advanced toward both ends;

[0081] During the penetration welding process, the weld on each side of the curved plate is realized by at least two layers of welding, and the welding layers on both sides of the curved plate are performed layer by layer in an alternating manner;

[0082] During fillet welding, the welding is advanced symmetrically on both sides of the current plate;

[0083] During the entire welding process, after each layer of welding is completed, the weld layer is subjected to 0.6-1.0MPa compressed air pneumatic vibration to eliminate the stress of the weld layer for 1-2 minutes;

[0084] Until the butt joint is formed convexly on the inner side of the transition between the cable clamp wall and the ear plate;

[0085] Step 9. According to the designed bolt hole spacing, corresponding bolt holes are opened on the upper pressure-bearing part and the lower pressure-bearing part respectively;

[0086] The bolt holes of the upper pressure-bearing part are coaxially formed on the outer plate and the inner plate of the upper pressure-bearing part and pass through the gaps between the rib plates of the upper pressure-bearing part;

[0087] The bolt holes of the lower pressure-bearing part are coaxially formed on the outer plate of the lower pressure-bearing part and the left half base of the cable clamp, and pass through the gaps between the ribs of the lower pressure-bearing part and the ribs of the butt joint part;

[0088] According to the designed pin hole structure, a pin hole is opened on the ear plate;

[0089] Step 10. Remove the arc-shaped code plate on the inner side of the cable clamp wall and grind it to the design requirements;

[0090] Quality inspection;

[0091] The left half of the cable clamp that has passed the quality inspection is placed in a heating furnace, and the temperature of the left half of the cable clamp is raised to 540-560°C at a heating rate of 65-75°C / h, and kept warm for at least 3 hours;

[0092] Stop heating and let the left half of the cable clamp cool to room temperature in the heating furnace;

[0093] Take out, finished product;

[0094] The molding method of the right half of the cable clamp comprises the following specific process steps:

[0095] Step Ⅰ. Select a steel plate with a thickness of 30-50 mm and a carbon content of ≤0.18%;

[0096] Cut the material according to the design structure and size of the base of the right half of the cable clamp, and reserve processing allowance when cutting;

[0097] Cut the materials according to the design structure and size of the upper pressure-bearing part, lower pressure-bearing part and docking part of the right half of the cable clamp, and reserve processing allowance when cutting;

[0098] On the molding machine, a molding structure is designed for the base of the right half of the cable clamp, and a molding cavity is opened;

[0099] Step II. Place the sheet material of the right half of the base of the formed cable clamp in the corresponding molding cavity of the molding machine;

[0100] Perform multiple molding processes until a semi-circular cable clamp wall portion and an ear plate portion folded outward at the bottom of the cable clamp wall are formed on the sheet material, thereby obtaining a rough base product of the right half of the cable clamp;

[0101] The curved plate material at the butt joint is curled according to the curvature structure of the designed curved plate;

[0102] Step III. The fitter performs a shaping process on the rough base of the right half of the cable clamp until the base of the right half of the cable clamp meets the design requirements of the cable clamp wall fine structure and ear plate fine structure;

[0103] Step IV. On the inner side of the cable clamp wall of the right half of the cable clamp, multiple sets of arc-shaped code plates are welded and arranged at intervals along the length direction;

[0104] Step V. Weld the outer plate, inner plate and rib plate of the upper pressure-bearing part to the preset position at the top of the cable clamp wall according to the designed molding structure;

[0105] The outer plate and rib plate of the lower pressure-bearing part are welded to the preset position outside the transition between the cable clamp wall and the ear plate according to the designed forming structure;

[0106] Step VI. Welding the outer plate of the upper pressure-bearing portion and the outer plate of the lower pressure-bearing portion by full penetration welding, respectively, so that the outer plate of the upper pressure-bearing portion and the outer plate of the lower pressure-bearing portion are respectively connected to the base of the right half of the cable clamp;

[0107] The inner plate and the rib plate of the upper pressure-bearing part and the rib plate of the lower pressure-bearing part are welded by fillet welding respectively, so that the inner plate of the upper pressure-bearing part is connected to the base of the right half of the cable clamp, the rib plate of the upper pressure-bearing part is connected to the inner plate and the outer plate of the upper pressure-bearing part and the base of the right half of the cable clamp, and the rib plate of the lower pressure-bearing part is connected to the outer plate of the lower pressure-bearing part and the base of the right half of the cable clamp;

[0108] During the welding process of the current plate, the middle area is used as the welding starting point and the welding is advanced toward both ends;

[0109] During the penetration welding process, the weld on each side of the current plate body is realized by at least two layers of welding, and the welding layers on both sides of the current plate body are performed layer by layer in an alternating manner;

[0110] During fillet welding, the welding is advanced symmetrically on both sides of the current plate;

[0111] During the entire welding process, after each layer of welding is completed, the weld layer is subjected to 0.6-1.0MPa compressed air pneumatic vibration to eliminate the stress of the weld layer for 1-2 minutes;

[0112] Until the upper pressure-bearing part is convexly formed at the top of the cable clamp wall, and the lower pressure-bearing part is convexly formed at the outer side of the transition between the cable clamp wall and the ear plate;

[0113] Step VII. Weld the arc plate, support plate and rib plate of the docking part to the preset position on the inner side of the transition between the cable clamp wall and the ear plate according to the designed molding structure;

[0114] Step VIII. Welding the arc plate at the butt joint portion on the right half of the base of the cable clamp by full penetration welding;

[0115] The support plate and the rib plate of the butt joint are respectively welded by fillet welding, so that the support plate is connected to the base of the right half of the cable clamp, and the rib plate is connected to the arc plate and the support plate of the butt joint, and the base of the right half of the cable clamp;

[0116] During the welding process of the current plate, the middle area is used as the welding starting point and the welding is advanced toward both ends;

[0117] During the penetration welding process, the weld on each side of the curved plate is realized by at least two layers of welding, and the welding layers on both sides of the curved plate are performed layer by layer in an alternating manner;

[0118] During fillet welding, the welding is advanced symmetrically on both sides of the current plate;

[0119] During the entire welding process, after each layer of welding is completed, the weld layer is subjected to 0.6-1.0MPa compressed air pneumatic vibration to eliminate the stress of the weld layer for 1-2 minutes;

[0120] Until the butt joint is formed convexly on the inner side of the transition between the cable clamp wall and the ear plate;

[0121] Step Ⅸ. According to the designed bolt hole spacing, corresponding bolt holes are opened on the upper pressure-bearing portion and the lower pressure-bearing portion;

[0122] The bolt holes of the upper pressure-bearing part are coaxially formed on the outer plate and the inner plate of the upper pressure-bearing part and pass through the gaps between the rib plates of the upper pressure-bearing part;

[0123] The bolt holes of the lower pressure-bearing part are coaxially formed on the outer plate of the lower pressure-bearing part and the right half base of the cable clamp, and pass through the gaps between the ribs of the lower pressure-bearing part and between the ribs of the butt joint part;

[0124] According to the designed pin hole structure, a pin hole is opened on the ear plate;

[0125] Step X. Remove the arc-shaped code plate on the inner side of the cable clamp wall and grind it to the design requirements;

[0126] Quality inspection;

[0127] The right half of the cable clamp that has passed the quality inspection is placed in a heating furnace, and the temperature of the right half of the cable clamp is raised to 540-560°C at a heating rate of 65-75°C / h, and kept warm for at least 3 hours;

[0128] Stop heating and let the right half of the cable clamp cool to room temperature in the heating furnace;

[0129] Take out, finished product.

[0130] As one of the preferred solutions, in step 2, the sheet material of the left half of the cable clamp is cut with a concave-convex stop structure continuously formed along the length direction at the top butt edge corresponding to the designed cable clamp wall;

[0131] In step II, the sheet material of the right half of the cable clamp is cut with a concave-convex stop structure continuously formed along the length direction, corresponding to the top butt joint edge of the designed cable clamp wall.

[0132] As one of the preferred solutions, in step 2, the arc-shaped plate material of the butt joint portion is cut with a concave-convex stop structure continuously formed along the length direction corresponding to the outer butt joint edge of the designed arc-shaped plate;

[0133] In step II, the arc-shaped plate material of the butt joint portion is cut with a concave-convex stop structure continuously formed along the length direction, corresponding to the outer butt joint edge of the designed arc-shaped plate.

[0134] The above technical measures are designed based on the particularity of the present invention that the left and right combined welded cable clamps are formed using steel plates as raw materials, and have the technical characteristics of being simple and easy to implement, having high quality of finished products, and having a stable force-bearing structure.

[0135] The beneficial technical effect of the present invention is: the above-mentioned technical measures use steel plates as raw materials to form cable clamps through molding, which, on the one hand, effectively avoids the technical defects of casting materials and has the technical characteristics of low molding technology difficulty, high molding efficiency, low molding cost, and a wide temperature resistance range; on the other hand, it takes into account the technical advantages of mold molding to a certain extent. The contour structure of the cable hole of the cable clamp can be a straight hole structure, a more complex curved structure, or a broken line structure with a certain angle, which is conducive to matching the catenary line shape of the main cable of the suspension bridge.

[0136] Compared with the technologies with publication numbers CN 210797267 U and CN 204112221 U, the above-mentioned technical measures integrate the ear plate and the corresponding cable clamp wall by molding, thereby eliminating direct force transmission of the weld in the force transmission chain between the bridge deck and the main cable, which is beneficial to the performance of the steel plate formed cable clamp, the overall rigidity is reliable, and the force-bearing structure is stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0137] Figure 1 It is a structural schematic diagram of the present invention (left and right exploded states, with the cable clamp bolt pair removed).

[0138] Figure 2 for Figure 1 A stereoscopic image of the left half of the cable clamp from an inner perspective (the left cover plate of the upper pressure-bearing part of the left half is removed).

[0139] Figure 3 for Figure 2 The schematic diagram of the structure of the left half of the cable clamp in the figure is a schematic diagram of the structure of the base body of the left half of the cable clamp, in which the upper pressure-bearing part, the lower pressure-bearing part and the butt joint part of the left half are removed.

[0140] Figure 4 for Figure 1 A stereoscopic image of the left half of the cable clamp from an outside perspective (the left cover plate of the upper pressure-bearing part of the left half is removed).

[0141] Figure 5 for Figure 1 A stereoscopic image of the right half of the cable clamp from an inner perspective (the right cover plate of the upper pressure-bearing part of the right half is removed).

[0142] Figure 6 for Figure 5The schematic diagram of the structure of the right half of the cable clamp in the figure is a schematic diagram of the structure of the base body of the right half of the cable clamp, in which the upper pressure-bearing part, the lower pressure-bearing part and the butt joint part of the right half of the cable clamp are removed.

[0143] Figure 7 for Figure 1 A stereoscopic image of the right half of the cable clamp from an outside perspective (the right cover plate of the upper pressure-bearing part of the right half is removed).

[0144] Meaning of the codes in the figure: A—left half of the cable clamp; A1—left side cable clamp wall; A2—left side ear plate; A3—left half upper pressure-bearing part; A31—left side outer plate of the upper pressure-bearing part; A32—left side inner plate of the upper pressure-bearing part; A33—left side rib plate of the upper pressure-bearing part; A34—left side cover plate of the upper pressure-bearing part; A4—left half lower pressure-bearing part; A41—left side outer plate of the lower pressure-bearing part; A42—left side rib plate of the lower pressure-bearing part; A5—left half docking part; A51—left side arc plate of docking part; A52—left side support plate of docking part; A53—left side rib plate of docking part;

[0145] B—right half of the cable clamp; B1—right side cable clamp wall; B2—right side ear plate; B3—right half upper pressure-bearing part; B31—right side outer plate of the upper pressure-bearing part; B32—right side inner plate of the upper pressure-bearing part; B33—right side rib plate of the upper pressure-bearing part; B34—right side cover plate of the upper pressure-bearing part; B4—right half lower pressure-bearing part; B41—right side outer plate of the lower pressure-bearing part; B42—right side rib plate of the lower pressure-bearing part; B5—right half docking part; B51—right side arc plate of docking part; B52—right side support plate of docking part; B53—right side rib plate of docking part. DETAILED DESCRIPTION

[0146] The present invention relates to a stress-bearing cable clamp for a suspension bridge, specifically a left-right combined welded cable clamp, and a manufacturing method of the welded cable clamp. The technical content of the present invention is described in detail with multiple embodiments below, wherein Embodiment 1 is combined with the accompanying drawings of the specification - Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 The technical solution of the present invention is explained clearly and in detail; although other embodiments are not separately drawn with drawings, their main structures can still refer to the drawings of embodiment 1.

[0147] It should be particularly noted that the drawings of the present invention are schematic, and unnecessary details have been simplified to clarify the technical purpose of the present invention so as to avoid blurring the technical solution that the present invention contributes to the prior art.

[0148] Example 1

[0149] See also Figure 1 , Figure 2 , Figure 3, Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, the present invention comprises two pieces of cable clamp left half A and cable clamp right half B which are connected in a left-right combination.

[0150] The left half A of the cable clamp is formed by molding a steel plate with a thickness of about 40 mm and a carbon content of ≤0.18%. It has a semi-circular left cable clamp wall A1 and a left ear plate A2 folded downward at the bottom of the left cable clamp wall A1. The inner contour line curvature of the left cable clamp wall A1 basically matches the outer contour line curvature of the main cable of the suspension bridge to be connected. The left ear plate A2 is integrally formed at the bottom of the left cable clamp wall A1 with an outward bending structure. There is a streamlined smooth transition between the root of the left ear plate A2 and the bottom of the left cable clamp wall A1, so that the extended angle between the left ear plate A2 and the bottom of the left cable clamp wall A1 is matched with a larger obtuse angle (for example, 120°, 130°, etc., just for example, not a specific value), see. Figure 3 shown.

[0151] The effective arc length of the inner contour of the left cable clamp wall A1 is less than 1 / 2 of the arc length of the corresponding outer contour of the main cable. The so-called effective arc length refers to the arc length area where the inner contour of the left cable clamp wall A1 contacts and cooperates with the outer contour of the main cable when the inner contour of the left cable clamp wall A1 hugs the main cable; the same applies to the effective arc length of the inner contour of the right cable clamp wall B1.

[0152] The left ear plate A2 is used as a sling (or a sling rod, the same below) for connecting the suspension bridge. Therefore, at least one pin hole capable of passing a pin shaft is provided on the left ear plate A2.

[0153] The right half B of the cable clamp is formed by one-piece molding of a steel plate with a thickness of about 40mm and a carbon content of ≤0.18% (the same specifications as the molding material of the left half A of the cable clamp). It has a semi-annular right cable clamp wall B1 and a right ear plate B2 that is folded downward and outward at the bottom of the right cable clamp wall B1. The curvature of the inner contour line of the right cable clamp wall B1 basically matches the curvature of the outer contour line of the main cable to be connected. The right ear plate B2 is integrally formed at the bottom of the right cable clamp wall B1 with an outward bending structure. There is a streamlined smooth transition between the root of the right ear plate B2 and the bottom of the right cable clamp wall B1, so that the extension angle between the right ear plate B2 and the bottom of the right cable clamp wall B1 is matched with a larger obtuse angle (for example, 120°, 130°, etc., just for example, not a specific value), see. Figure 6 shown.

[0154] The effective arc length of the inner contour of the right cable clamp wall B1 is less than 1 / 2 of the arc length of the corresponding outer contour of the main cable.

[0155] The right side ear plate B2 is used as the sling connecting the suspension bridge. Therefore, at least one pin hole that can wear the pin is provided on the right side ear plate B2.

[0156] Usually, the left half A of the cable clamp and the right half B of the cable clamp are formed in a basically left-right symmetrical structure, and preferably in a basically left-right symmetrical structure, which includes the following corresponding structures formed on the left half A and the right half B of the cable clamp.

[0157] Based on the base molded integral structure of the left half A of the cable clamp and the right half B of the cable clamp, when they are combined and connected together around the outer contour of the corresponding main cable, the following matching structure is formed:

[0158] - The top edge of the left cable clamp wall A1 is substantially in contact with the top edge of the right cable clamp wall B1;

[0159] - A non-contact fit with a reserved spacing is formed between the bottom of the left cable clamp wall A1 and the bottom of the right cable clamp wall B1, that is, a cable hole that fails to completely surround the main cable is formed between the left cable clamp wall A1 and the right cable clamp wall B1;

[0160] - A non-contact fit is formed between the left ear plate A2 at the bottom of the left cable clamp wall A1 and the right ear plate B2 at the bottom of the right cable clamp wall B1 with a reserved spacing.

[0161] On the basis of the above structure, in order to ensure the left-right combined connection between the left half A of the cable clamp and the right half B of the cable clamp, the following structure is also included:

[0162] - a left upper pressure-bearing portion A3 formed at the top of the left half A of the cable clamp;

[0163] - a left lower pressure-bearing portion A4 formed at the bottom of the left half A of the cable clamp (i.e., the outer side of the bending transition between the left cable clamp wall A1 and the left ear plate A2);

[0164] - a right upper pressure-bearing portion B3 formed at the top of the right half B of the cable clamp;

[0165] - A right lower pressure-bearing portion B4 formed at the bottom of the right half B of the cable clamp (ie, outside the bending transition between the right cable clamp wall B1 and the right ear plate B2).

[0166] At the same time, in order to form a cable hole with a full circular structure between the left half A of the cable clamp and the right half B of the cable clamp, a left half docking portion A5 is formed at the bottom of the left half A of the cable clamp (i.e., the inner side of the bending transition between the left cable clamp wall A1 and the left ear plate A2). A right half docking portion B5 is also formed at the bottom of the right half B of the cable clamp (i.e., the inner side of the bending transition between the right cable clamp wall B1 and the right ear plate B2).

[0167] Specifically, the longitudinal butt joint edge of the top of the left cable clamp wall A1 is continuously formed with a concave-convex stop structure along the length direction. Correspondingly, the longitudinal butt joint edge of the top of the right cable clamp wall B1 is continuously formed with a concave-convex stop structure along the length direction.

[0168] When the ends of the left half A and the right half B of the cable clamp are aligned, the longitudinal butt joint edges of the tops thereof can be matched with each other in a concave-convex stopper structure. That is, when the left half A and the right half B of the cable clamp are combined together, the butt joint edge of the top of the left cable clamp wall A1 and the butt joint edge of the top of the right cable clamp wall B1 can be matched with each other in a concave-convex stopper structure, that is, the convex stopper of the top of the left cable clamp wall A1 is embedded in the concave stopper of the top of the right cable clamp wall B1, and the convex stopper of the top of the right cable clamp wall B1 is embedded in the concave stopper of the top of the left cable clamp wall A1.

[0169] The left upper pressure-bearing portion A3 is welded and formed at the inner edge of the concave-convex stopper at the top of the left cable clamp wall A1.

[0170] More specifically, the left half upper pressure-bearing portion A3 is mainly composed of an upper pressure-bearing portion left outer plate A31, an upper pressure-bearing portion left inner plate A32, an upper pressure-bearing portion left rib plate A33 and an upper pressure-bearing portion left cover plate A34.

[0171] The left side outer plate A31 of the upper pressure-bearing part and the left side inner plate A32 of the upper pressure-bearing part are welded to the outer side of the top of the left side cable clamp wall A1 in a left-right spacing arrangement. When the left side cable clamp wall A1 is combined and docked with the right side cable clamp wall B1, the arrangement position of the left side inner plate A32 of the upper pressure-bearing part is close to one side of the right side cable clamp wall B1. The length direction of the left side outer plate A31 of the upper pressure-bearing part and the left side inner plate A32 of the upper pressure-bearing part is along the length direction of the left side cable clamp wall A1. The height direction of the left side outer plate A31 of the upper pressure-bearing part and the left side inner plate A32 of the upper pressure-bearing part corresponds to the vertical extension of the top of the left side cable clamp wall A1, and the extension height satisfies the connection arrangement of the cable clamp bolt pair.

[0172] The upper pressure-bearing part left side ribs A33 are multiple pieces. These upper pressure-bearing part left side ribs A33 are arranged along the length direction of the left cable clamping wall A1 in a spaced arrangement manner, are basically evenly welded between the upper pressure-bearing part left side outer plate A31 and the upper pressure-bearing part left side inner plate A32, and are welded to the top of the left cable clamping wall A1.

[0173] The left side cover plate A34 of the upper pressure-bearing part is welded to the left side outer plate A31 of the upper pressure-bearing part, the left side inner plate A32 of the upper pressure-bearing part, and the left side ribs A33 of the upper pressure-bearing part at both ends, so that the left side cover plate A34 of the upper pressure-bearing part blocks the gaps between the left side outer plate A31 of the upper pressure-bearing part, the left side inner plate A32 of the upper pressure-bearing part, and the left side ribs A33 of the upper pressure-bearing part. Of course, a friction-increasing and anti-skid structure can also be set on the top surface of the left side cover plate A34 of the upper pressure-bearing part to improve the safety of maintenance personnel when passing through.

[0174] On the left upper pressure-bearing part A3, multiple bolt holes are arranged at intervals along the length direction, and the forming track of each bolt hole passes through the gap of the left upper pressure-bearing part A3. In other words, the forming track of each bolt hole opened on the left upper pressure-bearing part A3 is located on the left outer plate A31 of the upper pressure-bearing part and the left inner plate A32 of the upper pressure-bearing part, and is staggered from the left rib plate A33 of the upper pressure-bearing part.

[0175] The right upper pressure-bearing portion B3 is welded and formed at the inner edge of the concave-convex stopper at the top of the right cable clamp wall B1.

[0176] More specifically, the right half upper pressure-bearing part B3 is mainly composed of an upper pressure-bearing part right outer plate B31, an upper pressure-bearing part right inner plate B32, an upper pressure-bearing part right rib plate B33 and an upper pressure-bearing part right cover plate B34.

[0177] The right side outer plate B31 of the upper pressure-bearing part and the right side inner plate B32 of the upper pressure-bearing part are welded to the outer side of the top of the right side cable clamp wall B1 in a left-right spacing arrangement. When the right side cable clamp wall B1 is combined and docked with the left side cable clamp wall A1, the arrangement position of the right side inner plate B32 of the upper pressure-bearing part is close to one side of the left side cable clamp wall A1. The length direction of the right side outer plate B31 of the upper pressure-bearing part and the right side inner plate B32 of the upper pressure-bearing part is along the length direction of the right side cable clamp wall B1. The height direction of the right side outer plate B31 of the upper pressure-bearing part and the right side inner plate B32 of the upper pressure-bearing part corresponds to the vertical extension of the top of the right side cable clamp wall B1. The extension height only needs to meet the connection arrangement of the cable clamp bolt pair. When cooperating with the left side cable clamp wall A1, it should be basically aligned with the left half of the upper pressure-bearing part A3.

[0178] The right rib plates B33 of the upper pressure-bearing part are multiple pieces. These right rib plates B33 of the upper pressure-bearing part are arranged in a spacing manner along the length direction of the right cable clamping wall B1, and are basically evenly welded between the right outer plate B31 of the upper pressure-bearing part and the right inner plate B32 of the upper pressure-bearing part, and are welded to the top of the right cable clamping wall B1.

[0179] The upper pressure-bearing right side cover plate B34 is welded to the upper pressure-bearing right side outer plate B31, the upper pressure-bearing right side inner plate B32, and the upper pressure-bearing right side rib plates B33 at both ends, so that the upper pressure-bearing right side cover plate B34 blocks the gaps between the upper pressure-bearing right side outer plate B31, the upper pressure-bearing right side inner plate B32, and the upper pressure-bearing right side rib plates B33. Of course, a friction-enhancing and anti-skid structure can also be set on the top surface of the upper pressure-bearing right side cover plate B34 to improve the safety of maintenance personnel when passing through.

[0180] On the right half upper pressure-bearing part B3, multiple bolt holes are arranged at intervals along the length direction, and the forming track of each bolt hole passes through the gap of the right half upper pressure-bearing part B3. In other words, the forming track of each bolt hole opened on the right half upper pressure-bearing part B3 is located on the right outer plate B31 of the upper pressure-bearing part and the right inner plate B32 of the upper pressure-bearing part, and is staggered from the right rib plate B33 of the upper pressure-bearing part.

[0181] When the ends of the left cable clamp wall A1 and the right cable clamp wall B1 are aligned, the bolt holes on the left upper pressure-bearing part A3 are required to be in a one-to-one matching relationship with the bolt holes on the right upper pressure-bearing part B3, so that the outer side of the left outer plate A31 of the upper pressure-bearing part of the left upper pressure-bearing part A3 and the outer side of the right outer plate B31 of the upper pressure-bearing part of the right upper pressure-bearing part B3 are connected from left to right. The cable clamp bolt pair installed therein locks the left cable clamp wall A1 and the right cable clamp wall B1 at the top in the left-right direction. At this time, the butt joint edge at the top of the left cable clamp wall A1 and the butt joint edge at the top of the right cable clamp wall B1 are matched with the concave and convex stop interlocking structure.

[0182] The left lower pressure-bearing portion A4 is welded and formed at the bottom of the left half A of the cable clamp, that is, at the outside of the bending transition between the left cable clamp wall A1 and the left ear plate A2.

[0183] More specifically, the left half lower pressure-bearing portion A4 is mainly composed of a lower pressure-bearing portion left outer plate A41 and a lower pressure-bearing portion left rib plate A42.

[0184] There are multiple left ribs A42 of the lower pressure-bearing part. The contour structure of each left rib A42 of the lower pressure-bearing part is approximately a right-angled triangular plate structure. Of course, the contour edge of its hypotenuse corresponds to the arc contour line of the bending transition part between the left cable clamping wall A1 and the left ear plate A2, and is in a convex parabola shape.

[0185] These left-side ribs A42 of the lower pressure-bearing portion are welded basically evenly at the outside of the bending transition area between the bottom of the left-side cable clamp wall A1 and the left-side ear plate A2 in a spaced arrangement along the length direction of the left-side cable clamp wall A1. The vertical straight edge of the left-side rib A42 of the lower pressure-bearing portion is basically in a parallel matching relationship with the left-side ear plate A2, and the horizontal straight edge of the left-side rib A42 of the lower pressure-bearing portion is basically in a vertical matching relationship with the left-side ear plate A2.

[0186] The left side outer plate A41 of the lower pressure-bearing part is vertically welded to the outer side of the bottom of the left side cable clamp wall A1, and is located outside the left side rib plate A42 of the lower pressure-bearing part. The surface of the left side outer plate A41 of the lower pressure-bearing part facing the left side rib plate A42 of the lower pressure-bearing part basically forms a surface contact fit with the vertical straight edge of the left side rib plate A42 of the lower pressure-bearing part and is welded together.

[0187] On the left lower pressure-bearing part A4, multiple bolt holes are arranged at intervals along the length direction, and the forming track of each bolt hole passes through the gap of the left lower pressure-bearing part A4. In other words, the forming track of each bolt hole opened on the left lower pressure-bearing part A4 is located on the left outer plate A41 of the lower pressure-bearing part and the left ear plate A2, and is staggered from the left rib plate A42 of the lower pressure-bearing part.

[0188] The right lower pressure-bearing portion B4 is welded and formed at the bottom of the right half B of the cable clamp, that is, at the outside of the bending transition between the right cable clamp wall B1 and the right ear plate B2.

[0189] More specifically, the right half lower pressure-bearing portion B4 is mainly composed of a lower pressure-bearing portion right outer plate B41 and a lower pressure-bearing portion right rib plate B42.

[0190] There are multiple right rib plates B42 of the lower pressure-bearing part. The contour structure of each right rib plate B42 of the lower pressure-bearing part is approximately a right-angled triangular plate structure. Of course, the contour edge of its hypotenuse corresponds to the arc contour line of the bending transition part between the right cable clamp wall B1 and the right ear plate B2, and is in an outwardly convex parabola shape.

[0191] These right-side ribs B42 of the lower pressure-bearing portion are welded basically evenly at the outside of the bending transition area between the bottom of the right cable clamp wall B1 and the right ear plate B2 in a spaced arrangement along the length direction of the right cable clamp wall B1. The vertical straight edge of the right-side ribs B42 of the lower pressure-bearing portion is basically in a parallel matching relationship with the right ear plate B2, and the horizontal straight edge of the right-side ribs B42 of the lower pressure-bearing portion is basically in a vertical matching relationship with the right ear plate B2.

[0192] The right side outer plate B41 of the lower pressure-bearing part is vertically welded to the outer side of the bottom of the right half B of the cable clamp, and is located outside the right side rib plate B42 of the lower pressure-bearing part. The surface of the right side outer plate B41 of the lower pressure-bearing part facing the right side rib plate B42 of the lower pressure-bearing part basically forms a surface contact fit with the vertical straight edge of the right side rib plate B42 of the lower pressure-bearing part and is welded together.

[0193] On the right half lower pressure-bearing part B4, multiple bolt holes are arranged at intervals along the length direction, and the forming track of each bolt hole passes through the gap of the right half lower pressure-bearing part B4. In other words, the forming track of each bolt hole opened on the right half lower pressure-bearing part B4 is located on the right outer plate B41 of the lower pressure-bearing part and the right ear plate B2, and is staggered from the right rib plate B42 of the lower pressure-bearing part.

[0194] When the ends of the left cable clamp wall A1 and the right cable clamp wall B1 combined together are aligned, it is required that the bolt holes on the above-mentioned left half lower pressure-bearing part A4 are in a one-to-one corresponding relationship with the bolt holes on the above-mentioned right half lower pressure-bearing part B4, so as to pass from the outer side of the left side outer plate A41 of the lower pressure-bearing part of the left half lower pressure-bearing part A3 to the outer side of the right side outer plate B41 of the lower pressure-bearing part of the right half lower pressure-bearing part B4.

[0195] The left half abutment portion A5 is welded and formed at the bottom of the left cable clamp wall A1, that is, at the inner side of the bending transition between the left cable clamp wall A1 and the left ear plate A2. The forming position of the left half abutment portion A5 on the left cable clamp wall A1 basically corresponds to the above-mentioned left half lower pressure portion A4.

[0196] More specifically, the left half docking portion A5 is mainly composed of a left side arc plate A51 of the docking portion, a left side support plate A52 of the docking portion, and a left side rib plate A53 of the docking portion.

[0197] The curvature of the top surface contour line of the left side arc-shaped plate A51 of the butt joint portion substantially matches the curvature of the semicircular inner contour line of the left side cable clamping wall A1.

[0198] The left side arc plate A51 of the docking part is welded to the left side cable clamp wall A1 at the inner root of the left side ear plate A2, and extends to the right side. Moreover, the semicircular inner contour line of the left side cable clamp wall A1 basically forms a smooth transition with the top surface contour line of the left side arc plate A51 of the docking part. The inner contour arc length of the left side cable clamp wall A1 with the left side arc plate A51 of the docking part (i.e., the arc length including the left side arc plate A51 of the docking part) basically corresponds to 1 / 2 of the outer contour arc length of the main cable.

[0199] The left side support plate A52 of the docking part is welded to the inner side of the root of the left side ear plate A2, and is located below the left side arc plate A51 of the docking part, and cooperates with the left side arc plate A51 of the docking part in an upper and lower spacing arrangement.

[0200] There are multiple left ribs A53 of the docking part. These left ribs A53 of the docking part are arranged along the length direction of the left ear plate A2 in a spaced arrangement manner, and are basically evenly welded between the left arc plate A51 of the docking part and the left support plate A52 of the docking part, and are welded to the left ear plate A2. It is required that the arrangement position of the left ribs A53 of the docking part is staggered from the bolt holes on the left ear plate A2.

[0201] The right half butt joint B5 is welded and formed at the bottom of the right cable clamp wall B1, that is, at the inner side of the bending transition between the right cable clamp wall B1 and the right ear plate B2. The forming position of the right half butt joint B5 on the right half of the cable clamp B basically corresponds to the above-mentioned right half lower pressure-bearing part B4.

[0202] More specifically, the right half docking portion B5 is mainly composed of a right side arc plate B51 of the docking portion, a right side support plate B52 of the docking portion, and a right side rib plate B53 of the docking portion.

[0203] The curvature of the top surface contour line of the right side arc-shaped plate B51 of the docking portion substantially matches the curvature of the semicircular inner contour line of the right side cable clamp wall B1.

[0204] The right side arc plate B51 of the docking part is welded to the right side cable clamp wall B1 at the inner root of the right side ear plate B2, and extends to the left. Moreover, the semicircular inner contour line of the right side cable clamp wall B1 basically forms a smooth transition with the top surface contour line of the right side arc plate B51 of the docking part. The inner contour arc length of the right side cable clamp wall B1 with the right side arc plate B51 of the docking part (i.e., the arc length including the arc length of the right side arc plate B51 of the docking part) basically corresponds to 1 / 2 of the outer contour arc length of the main cable.

[0205] The right side support plate B52 of the docking part is welded to the inner side of the root of the right side ear plate B2, and is located below the right side arc plate B51 of the docking part, and cooperates with the right side arc plate B51 of the docking part in an upper and lower spacing arrangement.

[0206] There are multiple right ribs B53 of the docking part. These right ribs B53 of the docking part are arranged along the length direction of the right ear plate B2 in a spacing manner, and are basically evenly welded between the right arc plate B51 of the docking part and the right support plate B52 of the docking part, and are welded to the right ear plate B2. It is required that the arrangement position of the right ribs B53 of the docking part is staggered from the bolt holes on the right ear plate B2.

[0207] At the right side docking edge of the left side arc plate A51 of the docking portion (i.e., the edge close to the right half B of the cable clamp), a concave-convex stop structure is continuously formed along the length direction. Correspondingly, at the left side docking edge of the right side arc plate B51 of the docking portion (i.e., the edge close to the left half A of the cable clamp), a concave-convex stop structure is continuously formed along the length direction. When the ends of the left half A and the right half B of the cable clamp combined together are aligned, the edges of their docking arc plates are matched with a concave and convex stop interlocking structure; that is, when the left half A and the right half B of the cable clamp are combined together in left and right positions, the right docking edge of the left side arc plate A51 of the docking part and the left side docking edge of the right side arc plate B51 of the docking part are matched with a concave and convex stop interlocking structure, that is, the convex stop of the right side docking edge of the left side arc plate A51 of the docking part is embedded in the concave stop of the left side docking edge of the right side arc plate B51 of the docking part; the convex stop of the left side docking edge of the right side arc plate B51 of the docking part is embedded in the concave stop of the right side docking edge of the left side arc plate A51 of the docking part. In this way, a full-circle cable hole capable of passing the main cable is formed, i.e., the butt joint combination of the left half butt joint part A4 and the right half butt joint part B4 fills the gap of the cable hole surrounded by the left cable clamp wall A1 and the right cable clamp wall B1, and at the same time, a non-contact fit with a reserved spacing is formed between the left ear plate A2 at the bottom of the left half A of the cable clamp and the right ear plate B2 at the bottom of the right half B of the cable clamp. The butt joint between the left half butt joint part A5 and the right half butt joint part B5 is located between the left ear plate A2 and the right ear plate B2.

[0208] It can be known from the arrangement structure of bolt holes formed on the left half lower pressure-bearing part A4 and the right half lower pressure-bearing part B4 that the bolt holes formed between the bottom of the left half A and the right half B of the cable clamp pass through the gaps of the left half lower pressure-bearing part A4, the left half docking part A5, the right half docking part B5, and the right half lower pressure-bearing part B4, thereby passing from the outer side of the left side outer plate A41 of the lower pressure-bearing part of the left half lower pressure-bearing part A4 to the outer side of the right side outer plate B41 of the lower pressure-bearing part of the right half lower pressure-bearing part B4. The bolt pair installed therein locks the left half A and the right half B of the cable clamp at the bottom in the left-right direction. At this time, the docking edge of the left side arc plate A51 of the docking part of the left half docking part A5 and the docking edge of the right side arc plate B51 of the docking part of the right half docking part B5 are matched with the concave and convex stop interlocking structure.

[0209] In the above-mentioned left and right docking structure, in order to facilitate the combined connection of the left and right semi-ring bodies, it is best to make the lateral width of the docking arc plate larger than the lateral extension width of the corresponding support plate and rib plate below, so that the area of ​​the docking arc plate used for forming the concave and convex stopper protrudes from the support plate and rib plate below. Of course, it is also possible to make the lateral extension width of the docking arc plate and the corresponding support plate substantially equal, and form the concave and convex stopper on the docking arc plate and the support plate respectively.

[0210] When manufacturing the above-mentioned left-right combined welded cable clamp, the left half of the cable clamp and the right half of the cable clamp are manufactured and formed separately, at least in the molding and welding stages, while the cutting and heat treatment stages can be carried out simultaneously without any difference. The following is a detailed description of the respective manufacturing processes of the left half of the cable clamp and the right half of the cable clamp.

[0211] Specifically, the manufacturing method of the left half of the cable clamp includes the following specific process steps:

[0212] Step 1. Select a steel plate with a thickness of about 40mm (or 45mm, or 50mm, etc.) and a carbon content of ≤0.18%. The steel plate with this structural performance has low brittleness, which is conducive to welding operation and ensuring welding quality. On the other hand, during the locking process on the main cable, it is conducive to adapting to the structural characteristics of the outer contour of the main cable to produce micro-deformation, and has better tolerance.

[0213] Cut the material according to the design structure and size of the base of the left half of the cable clamp, and reserve a processing allowance of about 10 to 15 mm (depending on the design technical requirements, such as 10 mm, 12 mm, or 14 mm, etc.) when cutting the material;

[0214] Cut materials according to the design structure and size of the upper pressure-bearing part, lower pressure-bearing part and butt joint of the left half of the cable clamp, such as the left outer plate of the upper pressure-bearing part, the left inner plate of the upper pressure-bearing part, the rib plate of the upper pressure-bearing part, the left outer plate of the lower pressure-bearing part, the rib plate of the lower pressure-bearing part, the left curved plate of the butt joint, the left support plate of the butt joint, the left rib plate of the butt joint, etc., and reserve a processing allowance of about 2 to 5 mm (depending on the specific design technical requirements, such as 2 mm, 3 mm or 4 mm, etc.) when cutting materials;

[0215] When cutting materials, the perforation cutting flame cutting method is used for cutting. The gas pressure of the flame cutting is about 0.5MPa, and the cutting speed is about 270mm / min (or 255mm / min, or 290mm / min, etc.);

[0216] On the molding machine, the molding structure is designed according to the base body of the left half of the cable clamp, and a molding cavity is opened;

[0217] Step 2. Place the sheet material of the left half of the base of the formed cable clamp in the corresponding molding cavity of the molding machine;

[0218] Perform multiple press molding processes; during the multiple press molding processes, the pressure of the subsequent press molding process is greater than that of the previous press molding process, thereby forming multiple press molding processes in a pressure increasing manner to reduce the rebound deformation of the steel plate material;

[0219] Through multiple molding processes, a semi-circular cable clamp wall portion and an ear plate portion folded outward at the bottom of the cable clamp wall are formed on the sheet material, thereby obtaining a rough base product of the left half of the cable clamp;

[0220] The curved plate material at the butt joint is curled according to the curvature structure of the designed curved plate;

[0221] By means of mechanical processing, a concave-convex stop structure continuously formed along the length direction is cut out at the top butt edge of the designed cable clamp wall corresponding to the plate material of the left half of the cable clamp;

[0222] By means of mechanical processing, a concave-convex stop structure continuously formed along the length direction is cut out at the outer butt edge of the designed curved plate corresponding to the curved plate of the butt joint portion;

[0223] The welding long sides of the upper pressure-bearing outer plate, the lower pressure-bearing outer plate and the arc-shaped plate of the butt joint are respectively machined into welding grooves to ensure that the angle error of the grooves is within the standard range of full penetration welding;

[0224] Step 3. The fitter performs a shaping process on the rough base of the left half of the cable clamp until the base of the left half of the cable clamp meets the design requirements of the cable clamp wall fine structure and ear plate fine structure;

[0225] Step 4. On the inner side of the cable clamp wall of the left half of the cable clamp, three (or four) groups of arc-shaped code plates are welded and arranged at intervals along the length direction. These arc-shaped code plates are arranged at substantially equal intervals, and the stopper structure forming area at the top and the following butt welding area are staggered on the inner side of the cable clamp wall;

[0226] Step 5. Spot weld the outer plate, inner plate and rib plate of the upper pressure-bearing part to the preset position at the top of the cable clamp wall according to the designed structure;

[0227] The outer plate and rib plate of the lower pressure-bearing part are welded to the preset position outside the transition between the cable clamp wall and the ear plate according to the designed molding structure by spot welding;

[0228] Step 6. Weld the outer plate of the upper pressure-bearing part and the outer plate of the lower pressure-bearing part respectively by full penetration welding, so that the outer plate of the upper pressure-bearing part and the outer plate of the lower pressure-bearing part are respectively connected to the base of the left half of the cable clamp;

[0229] The inner plate and the rib plate of the upper pressure-bearing part and the rib plate of the lower pressure-bearing part are welded by fillet welding respectively, so that the inner plate of the upper pressure-bearing part is connected to the base of the left half of the cable clamp, the rib plate of the upper pressure-bearing part is connected to the inner plate and the outer plate of the upper pressure-bearing part and the base of the left half of the cable clamp, and the rib plate of the lower pressure-bearing part is connected to the outer plate of the lower pressure-bearing part and the base of the left half of the cable clamp;

[0230] During the welding process of the current plate, the middle area is used as the welding starting point, and the welding is advanced toward both ends in a basically symmetrical manner or in an alternating manner;

[0231] During the penetration welding process, the weld on each side of the current plate is realized by three layers (or two layers), and the welding layers on both sides of the current plate are performed layer by layer in an alternating manner. The welding current is controlled to be about 280A (or 260A, or 300A, etc.), the welding voltage is about 30V (or 28V, or 32V, etc.), and the heat input is about 1KJ / cm (or 1.3KJ / cm, or 1.5KJ / cm, etc.);

[0232] During fillet welding, the welding is advanced symmetrically on both sides of the current plate;

[0233] During the entire welding process, after each layer of welding is completed, the weld layer is subjected to stress elimination treatment for about 1.5 minutes (or 2 minutes, or 1 minute, etc.) using a compressed air pneumatic shovel at a pressure of about 0.8MPa (or 0.7MPa, or 0.9MPa, etc.);

[0234] Until the upper pressure-bearing part is convexly formed at the top of the cable clamp wall, and the lower pressure-bearing part is convexly formed at the outer side of the transition between the cable clamp wall and the ear plate;

[0235] Step 7. Spot weld the arc plate, support plate and rib plate of the butt joint according to the designed structure at the preset position inside the transition between the cable clamp wall and the ear plate;

[0236] Step 8. Weld the arc plate of the butt joint to the left half of the cable clamp base by full penetration welding;

[0237] The support plate and the rib plate of the butt joint are respectively welded by fillet welding, so that the support plate is connected to the base of the left half of the cable clamp, and the rib plate is connected to the arc plate and the support plate of the butt joint, and the base of the left half of the cable clamp;

[0238] During the welding process of the current plate, the middle area is used as the welding starting point, and the welding is advanced toward both ends in a basically symmetrical manner or in an alternating manner;

[0239] During the penetration welding process, the weld on each side of the arc plate is realized by three layers (or two layers), and the welding layers on both sides of the arc plate are carried out layer by layer in an alternating manner. The welding current is controlled to be about 280A (or 260A, or 300A, etc.), the welding voltage is about 30V (or 28V, or 32V, etc.), and the heat input is about 1KJ / cm (or 1.3KJ / cm, or 1.5KJ / cm, etc.);

[0240] During fillet welding, the welding is advanced symmetrically on both sides of the current plate;

[0241] During the entire welding process, after each layer of welding is completed, the weld layer is subjected to stress elimination treatment for about 1.5 minutes (or 2 minutes, or 1 minute, etc.) using a compressed air pneumatic shovel at a pressure of about 0.8MPa (or 0.7MPa, or 0.9MPa, etc.);

[0242] Until the butt joint is formed convexly on the inner side of the transition between the cable clamp wall and the ear plate;

[0243] Step 9. According to the designed bolt hole spacing, corresponding bolt holes are opened on the upper pressure-bearing part and the lower pressure-bearing part respectively;

[0244] The bolt holes of the upper pressure-bearing part are coaxially formed on the outer plate and the inner plate of the upper pressure-bearing part and pass through the gaps between the rib plates of the upper pressure-bearing part;

[0245] The bolt holes of the lower pressure-bearing part are coaxially formed on the outer plate of the lower pressure-bearing part and the left half base of the cable clamp, and pass through the gaps between the ribs of the lower pressure-bearing part and the ribs of the butt joint part;

[0246] According to the designed pin hole structure, a pin hole is opened on the ear plate;

[0247] The cover plate is welded at the open portion of the upper pressure-bearing part by fillet welding to connect the cover plate with the inner plate, outer plate and two end rib plates of the upper pressure-bearing part;

[0248] Step 10. Remove the arc-shaped code plate on the inner side of the cable clamp wall, and grind it to the design requirements, including removing the machining allowance, etc.;

[0249] Conduct quality inspection including flaw detection;

[0250] The left half of the cable clamp that has passed the quality inspection is placed in a heating furnace, and the temperature of the left half of the cable clamp is raised to about 560°C (or 540°C, or 553°C, etc.) at a heating rate of about 72°C / h (or 66°C / h, or 75°C / h, etc.), and kept warm for about 4h (or 3.5h, or 4.5h, etc.);

[0251] Stop heating and let the left half of the cable clamp cool to room temperature in the heating furnace;

[0252] Take out, finished product.

[0253] The manufacturing method of the right half of the cable clamp comprises the following specific process steps:

[0254] Step Ⅰ. Select a steel plate with a thickness of 40mm (or 45mm, or 50mm, etc.) and a carbon content of ≤0.18%. Note that the molding material of the right half of the cable clamp is consistent with that of the left half of the cable clamp, based on the matching use of the right half of the cable clamp and the left half of the cable clamp;

[0255] Cut the material according to the design structure and size of the base of the right half of the cable clamp, and reserve a processing allowance of about 10 to 15 mm (depending on the design technical requirements, such as 10 mm, 12 mm, or 14 mm, etc.) when cutting the material;

[0256] Cut materials according to the design structure and size of the upper pressure-bearing part, lower pressure-bearing part and butt joint of the right half of the cable clamp, such as the right outer plate of the upper pressure-bearing part, the right inner plate of the upper pressure-bearing part, the rib plate of the upper pressure-bearing part, the right outer plate of the lower pressure-bearing part, the rib plate of the lower pressure-bearing part, the right curved plate of the butt joint, the right support plate of the butt joint, the right rib plate of the butt joint, etc., and reserve a processing allowance of about 2 to 5 mm (depending on the specific design technical requirements, such as 2 mm, 3 mm or 4 mm, etc.) when cutting materials;

[0257] When cutting materials, the perforation cutting flame cutting method is used for cutting. The gas pressure of the flame cutting is about 0.5MPa, and the cutting speed is about 270mm / min (or 255mm / min, or 290mm / min, etc.);

[0258] On the molding machine, a molding structure is designed for the base of the right half of the cable clamp, and a molding cavity is opened;

[0259] Step II. Place the sheet material of the right half of the base of the formed cable clamp in the corresponding molding cavity of the molding machine;

[0260] Perform multiple press molding processes; during the multiple press molding processes, the pressure of the subsequent press molding process is greater than that of the previous press molding process, thereby forming multiple press molding processes in a pressure increasing manner to reduce the rebound deformation of the steel plate material;

[0261] Through multiple molding processes, a semi-circular cable clamp wall portion and an ear plate portion folded outward at the bottom of the cable clamp wall are formed on the sheet material, thereby obtaining a rough base product of the right half of the cable clamp;

[0262] The curved plate material at the butt joint is curled according to the curvature structure of the designed curved plate;

[0263] By means of mechanical processing, a concave-convex stop structure continuously formed along the length direction is cut out at the top butt edge of the designed cable clamp wall corresponding to the plate material of the right half of the cable clamp;

[0264] By means of mechanical processing, a concave-convex stop structure continuously formed along the length direction is cut out at the outer butt edge of the designed curved plate corresponding to the curved plate of the butt joint portion;

[0265] The welding long sides of the upper pressure-bearing outer plate, the lower pressure-bearing outer plate and the arc-shaped plate of the butt joint are respectively machined into welding grooves to ensure that the angle error of the grooves is within the standard range of full penetration welding;

[0266] Step III. The fitter performs a shaping process on the rough base of the right half of the cable clamp until the base of the right half of the cable clamp meets the design requirements of the cable clamp wall fine structure and ear plate fine structure;

[0267] Step IV. On the inner side of the cable clamp wall of the right half of the cable clamp, three (or four) groups of arc-shaped code plates are welded and arranged at intervals along the length direction. These arc-shaped code plates are arranged at substantially equal intervals, and the stopper structure forming area at the top and the following butt welding area are staggered on the inner side of the cable clamp wall;

[0268] Step V. Spot-weld the outer plate, inner plate and rib plate of the upper pressure-bearing part to the preset position at the top of the cable clamp wall according to the designed structure;

[0269] The outer plate and rib plate of the lower pressure-bearing part are welded to the preset position outside the transition between the cable clamp wall and the ear plate according to the designed molding structure by spot welding;

[0270] Step VI. Welding the outer plate of the upper pressure-bearing portion and the outer plate of the lower pressure-bearing portion by full penetration welding, respectively, so that the outer plate of the upper pressure-bearing portion and the outer plate of the lower pressure-bearing portion are respectively connected to the base of the right half of the cable clamp;

[0271] The inner plate and the rib plate of the upper pressure-bearing part and the rib plate of the lower pressure-bearing part are welded by fillet welding respectively, so that the inner plate of the upper pressure-bearing part is connected to the base of the right half of the cable clamp, the rib plate of the upper pressure-bearing part is connected to the inner plate and the outer plate of the upper pressure-bearing part and the base of the right half of the cable clamp, and the rib plate of the lower pressure-bearing part is connected to the outer plate of the lower pressure-bearing part and the base of the right half of the cable clamp;

[0272] During the welding process of the current plate, the middle area is used as the welding starting point, and the welding is advanced toward both ends in a basically symmetrical manner or in an alternating manner;

[0273] During the penetration welding process, the weld on each side of the current plate is realized by three layers (or two layers), and the welding layers on both sides of the current plate are performed layer by layer in an alternating manner. The welding current is controlled to be about 280A (or 260A, or 300A, etc.), the welding voltage is about 30V (or 28V, or 32V, etc.), and the heat input is about 1KJ / cm (or 1.3KJ / cm, or 1.5KJ / cm, etc.);

[0274] During fillet welding, the welding is advanced symmetrically on both sides of the current plate;

[0275] During the entire welding process, after each layer of welding is completed, the weld layer is subjected to stress elimination treatment for about 1.5 minutes (or 2 minutes, or 1 minute, etc.) using a compressed air pneumatic shovel at a pressure of about 0.8MPa (or 0.7MPa, or 0.9MPa, etc.);

[0276] Until the upper pressure-bearing part is convexly formed at the top of the cable clamp wall, and the lower pressure-bearing part is convexly formed at the outer side of the transition between the cable clamp wall and the ear plate;

[0277] Step VII. Spot weld the arc plate, support plate and rib plate of the docking part to the preset position on the inner side of the transition between the cable clamp wall and the ear plate according to the designed molding structure;

[0278] Step VIII. Welding the arc plate at the butt joint portion on the right half of the base of the cable clamp by full penetration welding;

[0279] The support plate and the rib plate of the butt joint are respectively welded by fillet welding, so that the support plate is connected to the base of the right half of the cable clamp, and the rib plate is connected to the arc plate and the support plate of the butt joint, and the base of the right half of the cable clamp;

[0280] During the welding process of the current plate, the middle area is used as the welding starting point, and the welding is advanced toward both ends in a basically symmetrical manner or in an alternating manner;

[0281] During the penetration welding process, the weld on each side of the arc plate is realized by three layers (or two layers), and the welding layers on both sides of the arc plate are carried out layer by layer in an alternating manner. The welding current is controlled to be about 280A (or 260A, or 300A, etc.), the welding voltage is about 30V (or 28V, or 32V, etc.), and the heat input is about 1KJ / cm (or 1.3KJ / cm, or 1.5KJ / cm, etc.);

[0282] During fillet welding, the welding is advanced symmetrically on both sides of the current plate;

[0283] During the entire welding process, after each layer of welding is completed, the weld layer is subjected to stress elimination treatment for about 1.5 minutes (or 2 minutes, or 1 minute, etc.) using a compressed air pneumatic shovel at a pressure of about 0.8MPa (or 0.7MPa, or 0.9MPa, etc.);

[0284] Until the butt joint is formed convexly on the inner side of the transition between the cable clamp wall and the ear plate;

[0285] Step Ⅸ. According to the designed bolt hole spacing, corresponding bolt holes are opened on the upper pressure-bearing portion and the lower pressure-bearing portion;

[0286] The bolt holes of the upper pressure-bearing part are coaxially formed on the outer plate and the inner plate of the upper pressure-bearing part and pass through the gaps between the rib plates of the upper pressure-bearing part;

[0287] The bolt holes of the lower pressure-bearing part are coaxially formed on the outer plate of the lower pressure-bearing part and the right half base of the cable clamp, and pass through the gaps between the ribs of the lower pressure-bearing part and between the ribs of the butt joint part;

[0288] According to the designed pin hole structure, a pin hole is opened on the ear plate;

[0289] The cover plate is welded at the open portion of the upper pressure-bearing part by fillet welding to connect the cover plate with the inner plate, outer plate and two end rib plates of the upper pressure-bearing part;

[0290] Step X. Remove the arc-shaped code plate on the inner side of the cable clamp wall, and grind it to the design requirements, including removing the machining allowance, etc.;

[0291] Conduct quality inspection including flaw detection;

[0292] The right half of the cable clamp that has passed the quality inspection is placed in a heating furnace, and the temperature of the right half of the cable clamp is raised to about 560°C (or 540°C, or 553°C, etc.) at a heating rate of about 72°C / h (or 66°C / h, or 75°C / h, etc.), and kept warm for about 4h (or 3.5h, or 4.5h, etc.);

[0293] Stop heating and let the right half of the cable clamp cool to room temperature in the heating furnace;

[0294] Take out, finished product.

[0295] Example 2

[0296] The invention comprises a left half of a cable clamp and a right half of a cable clamp which are combined and connected in left and right positions.

[0297] The left half of the cable clamp is formed by a steel plate with a thickness of about 45 mm and a carbon content of ≤0.18% through molding, and has a semi-circular left cable clamp wall and a left ear plate formed by folding downward at the bottom of the left cable clamp wall. The inner contour line curvature of the left cable clamp wall basically matches the outer contour line curvature of the main cable of the suspension bridge to be connected. The left ear plate is formed in an integrated manner at the bottom of the left cable clamp wall with an outward bending structure.

[0298] The effective arc length of the inner contour of the left cable clamp wall basically corresponds to 1 / 2 of the arc length of the outer contour of the main cable.

[0299] The left ear plate is used as a sling (or a suspender rod, the same below) for connecting the suspension bridge. Therefore, at least one pin hole capable of passing a pin shaft is provided on the left ear plate.

[0300] The right half of the cable clamp is formed by a steel plate with a thickness of about 45mm and a carbon content of ≤0.18% through molding (the same specifications as the molding material of the left half of the cable clamp), and has a semi-circular right cable clamp wall and a right ear plate formed by folding downward at the bottom of the right cable clamp wall. The curvature of the inner contour of the right cable clamp wall basically matches the curvature of the outer contour of the main cable to be connected. The right ear plate is formed in an integral manner at the bottom of the right cable clamp wall with an outward bending structure.

[0301] The effective arc length of the inner contour of the right cable clamp wall basically corresponds to 1 / 2 of the arc length of the outer contour of the main cable.

[0302] The right side ear plate is used as the sling connecting the suspension bridge. Therefore, at least one pin hole that can wear the pin is provided on the right side ear plate.

[0303] Usually, the left half of the cable clamp and the right half of the cable clamp are formed in a basically left-right symmetrical structure, and preferably in a basically left-right symmetrical structure, which includes the following corresponding structures formed on the left half of the cable clamp and the right half of the cable clamp.

[0304] Based on the molded integral structure of the base of the left half of the cable clamp and the right half of the cable clamp, when they are combined and connected together around the outer contour of the corresponding main cable, the following matching structure is formed:

[0305] - The top edge of the left cable clamp wall is substantially in contact with the top edge of the right cable clamp wall;

[0306] - The bottom of the left cable clamp wall is substantially in contact with the bottom of the right cable clamp wall;

[0307] -The left ear plate at the bottom of the left cable clamp wall and the right ear plate at the bottom of the right cable clamp wall are basically in contact and fit.

[0308] On the basis of the above structure, in order to ensure the left-right combined connection between the left half of the cable clamp and the right half of the cable clamp, the following structure is also included:

[0309] - The left upper pressure-bearing portion formed at the top of the left cable clamp wall;

[0310] - a left lower pressure-bearing portion formed at the bottom of the left cable clamp wall (i.e., the outer side of the bending transition between the left cable clamp wall and the left ear plate);

[0311] - The right upper pressure-bearing portion formed at the top of the right cable clamp wall;

[0312] - A right lower pressure-bearing portion formed at the bottom of the right cable clamp wall (i.e., the outside of the bending transition between the right cable clamp wall and the right ear plate).

[0313] Specifically, the longitudinal butt joint edge of the top of the left cable clamp wall is continuously formed with a concave-convex stop structure along the length direction. Correspondingly, the longitudinal butt joint edge of the top of the right cable clamp wall is continuously formed with a concave-convex stop structure along the length direction.

[0314] When the ends of the left half of the cable clamp and the right half of the cable clamp are aligned, the longitudinal butt joint edges of the tops thereof can be matched with each other in a concave-convex stopper structure. That is to say, when the left half of the cable clamp and the right half of the cable clamp are combined together, the butt joint edge of the top of the left cable clamp wall and the butt joint edge of the top of the right cable clamp wall can be matched with each other in a concave-convex stopper structure, that is, the convex stopper of the top of the left cable clamp wall is embedded in the concave stopper of the top of the right cable clamp wall, and the convex stopper of the top of the right cable clamp wall is embedded in the concave stopper of the top of the left cable clamp wall.

[0315] The left upper pressure-bearing portion is welded and formed at the inner edge of the concave and convex stopper at the top of the left cable clamp wall.

[0316] More specifically, the left half of the upper pressure-bearing part is mainly composed of a left outer plate of the upper pressure-bearing part, a left inner plate of the upper pressure-bearing part, a left rib plate of the upper pressure-bearing part and a left cover plate of the upper pressure-bearing part.

[0317] The left side outer plate of the upper pressure-bearing part and the left side inner plate of the upper pressure-bearing part are welded to the outer side of the top of the left side cable clamp wall in a left-right spacing arrangement. When the left side cable clamp wall is combined and docked with the right side cable clamp wall, the arrangement position of the left side inner plate of the upper pressure-bearing part is close to one side of the right side cable clamp wall. The length direction of the left side outer plate of the upper pressure-bearing part and the left side inner plate of the upper pressure-bearing part is along the length direction of the left side cable clamp wall. The height direction of the left side outer plate of the upper pressure-bearing part and the left side inner plate of the upper pressure-bearing part corresponds to the vertical extension of the top of the left side cable clamp wall, and the extension height satisfies the connection arrangement of the cable clamp bolt pair.

[0318] The upper pressure-bearing part has a plurality of left ribs, which are arranged in a spacing manner along the length direction of the left cable clamp wall, and are welded between the left outer plate of the upper pressure-bearing part and the left inner plate of the upper pressure-bearing part, and are welded to the top of the left cable clamp wall.

[0319] The left side cover plate of the upper pressure-bearing part is welded to the left side outer plate of the upper pressure-bearing part, the left side inner plate of the upper pressure-bearing part, and the left side ribs of the upper pressure-bearing part at both ends, so that the left side cover plate of the upper pressure-bearing part blocks the gaps between the left side outer plate of the upper pressure-bearing part, the left side inner plate of the upper pressure-bearing part, and the left side ribs of the upper pressure-bearing part. Of course, a friction-enhancing and anti-skid structure can also be set on the top surface of the left side cover plate of the upper pressure-bearing part to improve the safety of maintenance personnel when passing through.

[0320] On the left half upper pressure-bearing part, multiple bolt holes are arranged at intervals along the length direction, and the forming track of each bolt hole passes through the gap of the left half upper pressure-bearing part. In other words, the forming track of each bolt hole opened on the left half upper pressure-bearing part is located on the left outer plate of the upper pressure-bearing part and the left inner plate of the upper pressure-bearing part, and is staggered from the left rib plate of the upper pressure-bearing part.

[0321] The right upper pressure-bearing portion is welded and formed at the inner edge of the concave and convex stopper at the top of the right cable clamp wall.

[0322] More specifically, the right half of the upper pressure-bearing part is mainly composed of a right outer plate of the upper pressure-bearing part, a right inner plate of the upper pressure-bearing part, a right rib plate of the upper pressure-bearing part and a right cover plate of the upper pressure-bearing part.

[0323] The right side outer plate of the upper pressure-bearing part and the right side inner plate of the upper pressure-bearing part are welded to the outer side of the top of the right side cable clamp wall in a left-right spacing arrangement. When the right side cable clamp wall is combined and docked with the left side cable clamp wall, the arrangement position of the right side inner plate of the upper pressure-bearing part is close to one side of the left side cable clamp wall. The length direction of the right side outer plate of the upper pressure-bearing part and the right side inner plate of the upper pressure-bearing part is along the length direction of the right side cable clamp wall. The height direction of the right side outer plate of the upper pressure-bearing part and the right side inner plate of the upper pressure-bearing part corresponds to the vertical extension of the top of the right side cable clamp wall. The extension height can meet the connection arrangement of the cable clamp bolt pair. When cooperating with the left side cable clamp wall, it should be basically aligned with the left half of the upper pressure-bearing part.

[0324] The right side rib plates of the upper pressure bearing part are multiple, and these right side rib plates of the upper pressure bearing part are arranged in a spacing manner along the length direction of the right side cable clamp wall, and are basically evenly welded between the right side outer plate of the upper pressure bearing part and the right side inner plate of the upper pressure bearing part, and are welded to the top of the right side cable clamp wall.

[0325] The right side cover plate of the upper pressure-bearing part is welded to the right side outer plate of the upper pressure-bearing part, the right side inner plate of the upper pressure-bearing part, and the right side ribs of the upper pressure-bearing part at both ends, so that the right side cover plate of the upper pressure-bearing part blocks the gaps between the right side outer plate of the upper pressure-bearing part, the right side inner plate of the upper pressure-bearing part, and the right side ribs of the upper pressure-bearing part. Of course, a friction-enhancing and anti-skid structure can also be set on the top surface of the right side cover plate of the upper pressure-bearing part to improve the safety of maintenance personnel when passing through.

[0326] On the right half upper pressure-bearing part, multiple bolt holes are arranged at intervals along the length direction, and the forming track of each bolt hole passes through the gap of the right half upper pressure-bearing part. In other words, the forming track of each bolt hole opened on the right half upper pressure-bearing part is located on the right outer plate of the upper pressure-bearing part and the right inner plate of the upper pressure-bearing part, and is staggered from the right rib plate of the upper pressure-bearing part.

[0327] When the left half of the cable clamp combined with the right half of the cable clamp is aligned, it is required that the bolt holes on the upper pressure-bearing part of the left half correspond to the bolt holes on the upper pressure-bearing part of the right half, so that the outer side of the left outer plate of the upper pressure-bearing part of the left half upper pressure-bearing part and the outer side of the right outer plate of the upper pressure-bearing part of the right half upper pressure-bearing part are connected from left to right. The cable clamp bolt pair is installed therein to lock the left cable clamp wall and the right cable clamp wall at the top in the left-right direction. At this time, the butt joint edge at the top of the left cable clamp wall and the butt joint edge at the top of the right cable clamp wall are matched with the concave and convex stop interlocking structure.

[0328] The left lower pressure-bearing part is welded and formed at the bottom of the left half of the cable clamp, that is, at the outside of the bending transition between the left cable clamp wall and the left ear plate.

[0329] More specifically, the left half of the lower pressure-bearing part is mainly composed of a left outer plate of the lower pressure-bearing part and a left rib plate of the lower pressure-bearing part.

[0330] There are multiple ribs on the left side of the lower pressure-bearing part. The contour structure of each rib on the left side of the lower pressure-bearing part is approximately a right-angled triangular plate structure. Of course, the contour edge at the hypotenuse position corresponds to the arc contour line of the bending transition part between the left cable clamp wall and the left ear plate, and is in a convex parabola shape.

[0331] These left side ribs of the lower pressure-bearing part are welded basically evenly at the outside of the bending transition area between the bottom of the left side cable clamp wall and the left side ear plate in a spaced arrangement along the length direction of the left side cable clamp wall. The vertical straight edge of the left side rib plate of the lower pressure-bearing part is basically in a parallel matching relationship with the left side ear plate, and the horizontal straight edge of the left side rib plate of the lower pressure-bearing part is basically in a vertical matching relationship with the left side ear plate.

[0332] The left side outer plate of the lower pressure-bearing part is vertically welded to the bottom outer side of the left cable clamp wall, and is located at the outer side of the left side rib plate of the lower pressure-bearing part. The surface of the left side outer plate of the lower pressure-bearing part facing the left side rib plate of the lower pressure-bearing part basically forms a surface contact fit with the vertical straight edge of the left side rib plate of the lower pressure-bearing part and is welded together.

[0333] On the left half lower pressure-bearing part, multiple bolt holes are arranged at intervals along the length direction, and the forming track of each bolt hole passes through the gap of the left half lower pressure-bearing part. In other words, the forming track of each bolt hole opened on the left half lower pressure-bearing part is located on the left outer plate and the left ear plate of the lower pressure-bearing part, and is staggered from the left rib plate of the lower pressure-bearing part.

[0334] The right lower pressure-bearing portion is welded and formed at the bottom of the right half of the cable clamp, that is, at the outside of the bending transition between the right cable clamp wall and the right ear plate.

[0335] More specifically, the right half of the lower pressure-bearing part is mainly composed of the right outer plate of the lower pressure-bearing part and the right rib plate of the lower pressure-bearing part.

[0336] There are multiple right rib plates of the lower pressure-bearing part. The contour structure of each right rib plate of the lower pressure-bearing part is approximately a right-angled triangular plate structure. Of course, the contour edge of its hypotenuse corresponds to the arc contour line of the bending transition part between the right cable clamp wall and the right ear plate, and is in an outwardly convex parabola shape.

[0337] These right-side ribs of the lower pressure-bearing part are welded basically evenly at the outside of the bending transition area between the bottom of the right cable clamp wall and the right ear plate in a spacing arrangement along the length direction of the right cable clamp wall. The vertical straight edge of the right-side rib plate of the lower pressure-bearing part is basically in a parallel matching relationship with the right ear plate, and the horizontal straight edge of the right-side rib plate of the lower pressure-bearing part is basically in a vertical matching relationship with the right ear plate.

[0338] The right outer plate of the lower pressure-bearing part is vertically welded to the outer side of the bottom of the right half of the cable clamp, and is located at the outer side of the right rib plate of the lower pressure-bearing part. The surface of the right outer plate of the lower pressure-bearing part facing the right rib plate of the lower pressure-bearing part basically forms a surface contact fit with the vertical straight edge of the right rib plate of the lower pressure-bearing part and is welded together.

[0339] On the right half lower pressure-bearing part, multiple bolt holes are arranged at intervals along the length direction, and the forming track of each bolt hole passes through the gap of the right half lower pressure-bearing part. In other words, the forming track of each bolt hole opened on the right half lower pressure-bearing part is located on the right outer plate and the right ear plate of the lower pressure-bearing part, and is staggered from the right rib plate of the lower pressure-bearing part.

[0340] When the ends of the left half of the cable clamp combined with the right half of the cable clamp are aligned, it is required that the bolt holes on the above-mentioned left half lower pressure-bearing part should be in a one-to-one corresponding relationship with the bolt holes on the above-mentioned right half lower pressure-bearing part, so as to pass from the outer side of the left side outer plate of the lower pressure-bearing part of the left half lower pressure-bearing part to the outer side of the right side outer plate of the lower pressure-bearing part of the right half lower pressure-bearing part.

[0341] According to the arrangement structure of the bolt holes formed on the left half lower pressure part and the right half lower pressure part, the bolt holes formed between the bottom of the left half of the cable clamp and the right half of the cable clamp pass through the gap between the left half lower pressure part and the right half lower pressure part, thus passing from the outer side of the left side outer plate of the lower pressure part of the left half lower pressure part to the outer side of the right side outer plate of the lower pressure part of the right half lower pressure part. The bolt pair installed therein locks the bottom of the left half of the cable clamp and the right half of the cable clamp in the left-right direction.

[0342] When manufacturing the above-mentioned left-right combined welded cable clamp, the left half of the cable clamp and the right half of the cable clamp are manufactured and formed separately, at least in the molding and welding stages, while the cutting and heat treatment stages can be carried out simultaneously without any difference. The following is a detailed description of the respective manufacturing processes of the left half of the cable clamp and the right half of the cable clamp.

[0343] Specifically, the manufacturing method of the left half of the cable clamp includes the following specific process steps:

[0344] Step 1. Select a steel plate with a thickness of about 45mm (or 37mm, or 48mm, etc.) and a carbon content of ≤0.18%;

[0345] Cut the material according to the design structure and size of the base of the left half of the cable clamp, and reserve a processing allowance of about 10 to 15 mm (depending on the design technical requirements, such as 10 mm, 12 mm, or 14 mm, etc.) when cutting the material;

[0346] Cut the materials according to the design structure and size of the upper and lower pressure-bearing parts of the left half of the cable clamp, such as the left outer plate of the upper pressure-bearing part, the left inner plate of the upper pressure-bearing part, the rib plate of the upper pressure-bearing part, the left outer plate of the lower pressure-bearing part, the rib plate of the lower pressure-bearing part, etc., and reserve a processing allowance of about 2 to 5 mm (depending on the design technical requirements, such as 2 mm, 3 mm or 4 mm, etc.) when cutting the materials;

[0347] When cutting materials, the perforation cutting flame cutting method is used for cutting. The gas pressure of the flame cutting is about 0.5MPa, and the cutting speed is about 265mm / min (or 280mm / min, or 300mm / min, etc.);

[0348] On the molding machine, the molding structure is designed according to the base body of the left half of the cable clamp, and a molding cavity is opened;

[0349] Step 2. Place the sheet material of the left half of the base of the formed cable clamp in the corresponding molding cavity of the molding machine;

[0350] Perform multiple press molding processes; during the multiple press molding processes, the pressure of the subsequent press molding process is greater than that of the previous press molding process, thereby forming multiple press molding processes in a pressure increasing manner to reduce the rebound deformation of the steel plate material;

[0351] Through multiple molding processes, a semi-circular cable clamp wall portion and an ear plate portion folded outward at the bottom of the cable clamp wall are formed on the sheet material, thereby obtaining a rough base product of the left half of the cable clamp;

[0352] By means of mechanical processing, a concave-convex stop structure continuously formed along the length direction is cut out at the top butt edge of the designed cable clamp wall corresponding to the plate material of the left half of the cable clamp;

[0353] The welding long sides of the upper pressure-bearing part outer plate and the lower pressure-bearing part outer plate are respectively machined to form welding grooves to ensure that the angle error of the grooves is within the standard range of full penetration welding;

[0354] Step 3. The fitter performs a shaping process on the rough base of the left half of the cable clamp until the base of the left half of the cable clamp meets the design requirements of the cable clamp wall fine structure and ear plate fine structure;

[0355] Step 4. On the inner side of the cable clamp wall of the left half of the cable clamp, three (or four) groups of arc-shaped code plates are welded and arranged at intervals along the length direction. These arc-shaped code plates are arranged at substantially equal intervals and staggered from the stopper structure forming area at the top on the inner side of the cable clamp wall;

[0356] Step 5. Spot weld the outer plate, inner plate and rib plate of the upper pressure-bearing part to the preset position at the top of the cable clamp wall according to the designed structure;

[0357] The outer plate and rib plate of the lower pressure-bearing part are welded to the preset position outside the transition between the cable clamp wall and the ear plate according to the designed molding structure by spot welding;

[0358] Step 6. Weld the outer plate of the upper pressure-bearing part and the outer plate of the lower pressure-bearing part respectively by full penetration welding, so that the outer plate of the upper pressure-bearing part and the outer plate of the lower pressure-bearing part are respectively connected to the base of the left half of the cable clamp;

[0359] The inner plate and the rib plate of the upper pressure-bearing part and the rib plate of the lower pressure-bearing part are welded by fillet welding respectively, so that the inner plate of the upper pressure-bearing part is connected to the base of the left half of the cable clamp, the rib plate of the upper pressure-bearing part is connected to the inner plate and the outer plate of the upper pressure-bearing part and the base of the left half of the cable clamp, and the rib plate of the lower pressure-bearing part is connected to the outer plate of the lower pressure-bearing part and the base of the left half of the cable clamp;

[0360] During the welding process of the current plate, the middle area is used as the welding starting point, and the welding is advanced toward both ends in a basically symmetrical manner or in an alternating manner;

[0361] During the penetration welding process, the weld on each side of the current plate is realized by three layers (or two layers), and the welding layers on both sides of the current plate are performed layer by layer in an alternating manner. The welding current is controlled to be about 270A (or 265A, or 290A, etc.), the welding voltage is about 29V (or 28V, or 31V, etc.), and the heat input is about 0.9KJ / cm (or 1.2KJ / cm, or 1.7KJ / cm, etc.);

[0362] During fillet welding, the welding is advanced symmetrically on both sides of the current plate;

[0363] During the entire welding process, after each layer of welding is completed, the weld layer is subjected to stress elimination treatment for about 1.5 minutes (or 2 minutes, or 1 minute, etc.) using a compressed air pneumatic shovel at a pressure of about 0.8MPa (or 0.7MPa, or 0.9MPa, etc.);

[0364] Until the upper pressure-bearing part is convexly formed at the top of the cable clamp wall, and the lower pressure-bearing part is convexly formed at the outer side of the transition between the cable clamp wall and the ear plate;

[0365] Step 7. According to the designed bolt hole spacing, corresponding bolt holes are opened on the upper pressure-bearing part and the lower pressure-bearing part respectively;

[0366] The bolt holes of the upper pressure-bearing part are coaxially formed on the outer plate and the inner plate of the upper pressure-bearing part and pass through the gaps between the rib plates of the upper pressure-bearing part;

[0367] The bolt holes of the lower pressure-bearing part are coaxially formed on the outer plate of the lower pressure-bearing part and the left half base of the cable clamp, and pass through the gap between the rib plates of the lower pressure-bearing part;

[0368] According to the designed pin hole structure, a pin hole is opened on the ear plate;

[0369] Step 8. Remove the arc-shaped code plate on the inner side of the cable clamp wall and grind it to the design requirements, including removing the machining allowance, etc.;

[0370] Conduct quality inspection including flaw detection;

[0371] The left half of the cable clamp that has passed the quality inspection is placed in a heating furnace, and the temperature of the right half of the cable clamp is raised to about 550°C (or 545°C, or 560°C, etc.) at a heating rate of about 70°C / h (or 68°C / h, or 73°C / h, etc.), and kept warm for about 4h (or 3.5h, or 4.5h, etc.);

[0372] Stop heating and let the left half of the cable clamp cool to room temperature in the heating furnace;

[0373] Take out, finished product.

[0374] The manufacturing method of the right half of the cable clamp comprises the following specific process steps:

[0375] Step Ⅰ. Select a steel plate with a thickness of 45mm (or 37mm, or 48mm, etc.) and a carbon content of ≤0.18%. Note that the molding material of the right half of the cable clamp is consistent with that of the left half of the cable clamp, based on the matching use of the right half of the cable clamp and the left half of the cable clamp;

[0376] Cut the material according to the design structure and size of the base of the right half of the cable clamp, and reserve a processing allowance of about 10 to 15 mm (depending on the design technical requirements, such as 10 mm, 12 mm, or 14 mm, etc.) when cutting the material;

[0377] Cut materials according to the design structure and size of the upper pressure-bearing part, lower pressure-bearing part and butt joint of the right half of the cable clamp, such as the right outer plate of the upper pressure-bearing part, the right inner plate of the upper pressure-bearing part, the rib plate of the upper pressure-bearing part, the right outer plate of the lower pressure-bearing part, the rib plate of the lower pressure-bearing part, the right curved plate of the butt joint, the right support plate of the butt joint, the right rib plate of the butt joint, etc., and reserve a processing allowance of about 2 to 5 mm (depending on the specific design technical requirements, such as 2 mm, 3 mm or 4 mm, etc.) when cutting materials;

[0378] When cutting materials, the perforation cutting flame cutting method is used for cutting. The gas pressure of the flame cutting is about 0.5MPa, and the cutting speed is about 265mm / min (or 280mm / min, or 300mm / min, etc.);

[0379] On the molding machine, a molding structure is designed for the base of the right half of the cable clamp, and a molding cavity is opened;

[0380] Step II. Place the sheet material of the right half of the base of the formed cable clamp in the corresponding molding cavity of the molding machine;

[0381] Perform multiple press-molding processes; during the multiple press-molding processes, the pressure of the subsequent press-molding process is greater than that of the previous press-molding process, thereby forming multiple press-molding processes in a pressure increasing manner to reduce the rebound deformation of the steel plate material;

[0382] Through multiple molding processes, a semi-circular cable clamp wall portion and an ear plate portion folded outward at the bottom of the cable clamp wall are formed on the sheet material, thereby obtaining a rough base product of the right half of the cable clamp;

[0383] The curved plate material at the butt joint is curled according to the curvature structure of the designed curved plate;

[0384] By means of mechanical processing, a concave-convex stop structure continuously formed along the length direction is cut out at the top butt edge of the designed cable clamp wall corresponding to the plate material of the right half of the cable clamp;

[0385] By means of mechanical processing, a concave-convex stop structure continuously formed along the length direction is cut out at the outer butt edge of the designed curved plate corresponding to the curved plate of the butt joint portion;

[0386] The welding long sides of the upper pressure-bearing outer plate, the lower pressure-bearing outer plate and the arc-shaped plate of the butt joint are respectively machined into welding grooves to ensure that the angle error of the grooves is within the standard range of full penetration welding;

[0387] Step III. The fitter performs a shaping process on the rough base of the right half of the cable clamp until the base of the right half of the cable clamp meets the design requirements of the cable clamp wall fine structure and ear plate fine structure;

[0388] Step IV. On the inner side of the cable clamp wall of the right half of the cable clamp, three (or four) groups of arc-shaped code plates are welded and arranged at intervals along the length direction. These arc-shaped code plates are arranged at substantially equal intervals, and the stopper structure forming area at the top and the following butt welding area are staggered on the inner side of the cable clamp wall;

[0389] Step V. Spot-weld the outer plate, inner plate and rib plate of the upper pressure-bearing part to the preset position at the top of the cable clamp wall according to the designed structure;

[0390] The outer plate and rib plate of the lower pressure-bearing part are welded to the preset position outside the transition between the cable clamp wall and the ear plate according to the designed molding structure by spot welding;

[0391] Step VI. Welding the outer plate of the upper pressure-bearing portion and the outer plate of the lower pressure-bearing portion by full penetration welding, respectively, so that the outer plate of the upper pressure-bearing portion and the outer plate of the lower pressure-bearing portion are respectively connected to the base of the right half of the cable clamp;

[0392] The inner plate and the rib plate of the upper pressure-bearing part and the rib plate of the lower pressure-bearing part are welded by fillet welding respectively, so that the inner plate of the upper pressure-bearing part is connected to the base of the right half of the cable clamp, the rib plate of the upper pressure-bearing part is connected to the inner plate and the outer plate of the upper pressure-bearing part and the base of the right half of the cable clamp, and the rib plate of the lower pressure-bearing part is connected to the outer plate of the lower pressure-bearing part and the base of the right half of the cable clamp;

[0393] During the welding process of the current plate, the middle area is used as the welding starting point, and the welding is advanced toward both ends in a basically symmetrical manner or in an alternating manner;

[0394] During the penetration welding process, the weld on each side of the current plate is realized by three layers (or two layers), and the welding layers on both sides of the current plate are performed layer by layer in an alternating manner. The welding current is controlled to be about 270A (or 265A, or 290A, etc.), the welding voltage is about 29V (or 28V, or 31V, etc.), and the heat input is about 0.9KJ / cm (or 1.2KJ / cm, or 1.7KJ / cm, etc.);

[0395] During fillet welding, the welding is advanced symmetrically on both sides of the current plate;

[0396] During the entire welding process, after each layer of welding is completed, the weld layer is subjected to stress elimination treatment for about 1.5 minutes (or 2 minutes, or 1 minute, etc.) using a compressed air pneumatic shovel at a pressure of about 0.8MPa (or 0.7MPa, or 0.9MPa, etc.);

[0397] Until the upper pressure-bearing part is convexly formed at the top of the cable clamp wall, and the lower pressure-bearing part is convexly formed at the outer side of the transition between the cable clamp wall and the ear plate;

[0398] Step VII. According to the designed bolt hole spacing, corresponding bolt holes are respectively opened on the upper pressure-bearing part and the lower pressure-bearing part;

[0399] The bolt holes of the upper pressure-bearing part are coaxially formed on the outer plate and the inner plate of the upper pressure-bearing part and pass through the gaps between the rib plates of the upper pressure-bearing part;

[0400] The bolt holes of the lower pressure-bearing part are coaxially formed on the outer plate of the lower pressure-bearing part and the right half base of the cable clamp, and pass through the gaps between the ribs of the lower pressure-bearing part and between the ribs of the butt joint part;

[0401] According to the designed pin hole structure, a pin hole is opened on the ear plate;

[0402] Step VIII. Remove the arc-shaped code plate on the inner side of the cable clamp wall, and grind it to the design requirements, including removing the machining allowance, etc.;

[0403] Conduct quality inspection including flaw detection;

[0404] The right half of the cable clamp that has passed the quality inspection is placed in a heating furnace, and the temperature of the right half of the cable clamp is raised to about 550°C (or 545°C, or 560°C, etc.) at a heating rate of about 70°C / h (or 68°C / h, or 73°C / h, etc.), and kept warm for about 4h (or 3.5h, or 4.5h, etc.);

[0405] Stop heating and let the right half of the cable clamp cool to room temperature in the heating furnace;

[0406] Take out, finished product.

[0407] The left-right combined cable clamp formed in this embodiment is to match the two ear plates between the left half of the cable clamp and the right half of the cable clamp in a basic contact manner, that is, between the left cable clamp wall with ear plates and the right cable clamp wall, the ear plates are butt-jointed to form a full circular ring body that matches the outer contour of the main cable of the suspension bridge. In this way, in order to form the full circular ring body in a regular manner, the outward bending forming angle of the ear plate at the bottom of the corresponding cable clamp wall is relatively small, and the bending corner of the bottom of the cable clamp wall and the corresponding ear plate tends to be formed at an angle of 90°, which leads to excessive concentration of stress at the root of the ear plate. In the process of force transmission between the bridge deck and the main cable, fatigue damage is easily generated to a certain extent, affecting the overall rigidity and stability of the force-bearing structure.

[0408] Compared with the present embodiment, the ear plates of the left half of the cable clamp and the right half of the cable clamp combined together in the left and right positions are non-contact matched with a reserved spacing, that is, there is no need for the two cable clamp walls with ear plates to form a full-circular cable hole with each other through their own ear plates, so that the bending forming angle of the ear plate on the corresponding cable clamp wall is larger, the transition between the cable clamp wall and the corresponding ear plate is smooth, the stress distribution at the root of the ear plate is more uniform, and fatigue damage is not easy to occur, which reliably improves the overall rigidity and stress structure stability of the cable clamp to a certain extent.

[0409] Example 3

[0410] The other contents of this embodiment are the same as those of Embodiment 1, except that the left half docking portion and the right half docking portion are respectively composed of an arc-shaped plate.

[0411] That is, the left side support plate of the docking part, the right side support plate of the docking part, the left side rib plate of the docking part, and the right side rib plate of the docking part are removed.

[0412] Example 4

[0413] The other contents of this embodiment are the same as those of Embodiment 1, except that:

[0414] - The arc-shaped plate butt joint edge of the left half butt joint (the edge facing the right half of the cable clamp) is a flat edge structure;

[0415] - The arc-shaped plate butt joint edge of the right half butt joint (the edge facing the left half of the cable clamp) is a flat edge structure;

[0416] - The left half of the cable clamp and the right half of the cable clamp are combined together, and the left half and the right half at the bottom are matched with each other in surface contact or with a slight gap.

[0417] The above embodiments are only used to illustrate the present invention, but not to limit it;

[0418] Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the present invention can still modify the specific technical solutions in the above embodiments, or make equivalent substitutions for some of the technical features therein, and these modifications or substitutions do not deviate the essence of the corresponding technical solutions from the spirit and scope of the present invention.

Claims

1. A left-right combined welding cable clamp, comprising a left cable clamp (A) and a right cable clamp (B); Features: The left half (A) of the cable clamp is formed by molding a steel plate in one piece, and has a semi-circular left cable clamp wall (A1) and a left ear plate (A2) formed by folding outward at the bottom of the left cable clamp wall (A1); At the top of the left side cable clamp wall (A1) of the left half (A) of the cable clamp, a left half upper pressure bearing portion (A3) formed outwardly is welded; The left half upper pressure-bearing part (A3) is mainly composed of an upper pressure-bearing part left outer plate (A31) and an upper pressure-bearing part left inner plate (A32) welded and arranged at intervals on the left and right sides, and a plurality of upper pressure-bearing part left rib plates (A33) welded and arranged at intervals between the upper pressure-bearing part left outer plate (A31) and the upper pressure-bearing part left inner plate (A32) along the length direction of the left half (A) of the cable clamp; On the left upper pressure-bearing portion (A3), a plurality of bolt holes are arranged at intervals along the length direction and pass through the left and right sides, and the forming track of each bolt hole passes through the gap of the left upper pressure-bearing portion (A3); A left lower pressure-bearing portion (A4) formed outwardly is welded on the outside of the transition between the left cable clamp wall (A1) and the left ear plate (A2) of the left half of the cable clamp; The left lower pressure-bearing part (A4) is mainly composed of a plurality of lower pressure-bearing part left ribs (A42) welded and arranged at intervals along the length direction of the left half (A) of the cable clamp, and a lower pressure-bearing part left outer plate (A41) welded to the outer side of each lower pressure-bearing part left rib (A42); On the left lower pressure-bearing portion (A4), a plurality of bolt holes are arranged at intervals along the length direction and pass through the left and right sides, and the forming track of each bolt hole passes through the gap of the left lower pressure-bearing portion (A4); The right half of the cable clamp (B) is formed by molding a steel plate in one piece, and has a semi-circular right cable clamp wall (B1) and a right ear plate (B2) formed by folding outward at the bottom of the right cable clamp wall (B1); A right half upper pressure-bearing portion (B3) formed outwardly convexly is welded at the top of the right side cable clamp wall (B1) of the right half of the cable clamp (B); The right half upper pressure-bearing part (B3) is mainly composed of an upper pressure-bearing part right outer plate (B31) and an upper pressure-bearing part right inner plate (B32) which are welded and arranged at intervals on the left and right, and a plurality of upper pressure-bearing part right rib plates (B33) which are welded and arranged at intervals between the upper pressure-bearing part right outer plate (B31) and the upper pressure-bearing part right inner plate (B32) along the length direction of the right half of the cable clamp (B); On the right upper pressure-bearing portion (B3), a plurality of bolt holes are arranged at intervals along the length direction and pass through the right and left sides, and the forming track of each bolt hole passes through the gap of the right upper pressure-bearing portion (B3); A right lower pressure-bearing portion (B4) formed outwardly is welded on the outside of the transition between the right side cable clamp wall (B1) and the right side ear plate (B2) of the right half of the cable clamp (B); The right half lower pressure-bearing part (B4) is mainly composed of a plurality of lower pressure-bearing part right rib plates (B42) welded and arranged at intervals along the length direction of the right half of the cable clamp (B), and a lower pressure-bearing part right outer plate (B41) welded to the outer side of each lower pressure-bearing part right rib plate (B42); On the right lower pressure-bearing portion (B4), a plurality of bolt holes are arranged at intervals along the length direction and pass through the right and left sides, and the forming track of each bolt hole passes through the gap of the right lower pressure-bearing portion (B4); The left half (A) of the cable clamp and the right half (B) of the cable clamp are combined together in a left-right position, and through the one-to-one matching bolt holes between the left half upper pressure-bearing part (A3) and the right half upper pressure-bearing part (B3), and the one-to-one matching bolt holes between the left half lower pressure-bearing part (A4) and the right half lower pressure-bearing part (B4), the multiple cable clamp bolt pairs installed are connected into a whole, and a cable hole is formed to be able to install and hold the main cable of the suspension bridge; On the main cable of the suspension bridge, the left ear plate (A2) of the left half (A) of the cable clamp and the right ear plate (B2) of the right half (B) of the cable clamp are used to connect the slings / suspenders of the suspension bridge.

2. According to claim 1, the left and right combined welding cable clamp is characterized in that: When the left half (A) of the cable clamp and the right half (B) of the cable clamp are connected together in a left-right combination, the left ear plate (A2) of the left half (A) of the cable clamp and the right ear plate (B2) of the right half (B) of the cable clamp are non-contactly matched with a reserved spacing; A left half docking portion (A5) extending toward the right half (B) of the cable clamp is welded on the inner side of the transition between the left side cable clamp wall (A1) and the left side ear plate (A2) of the left half (A) of the cable clamp, and the left half docking portion (A5) at least has a left side arc plate (A51) of the docking portion matching the semicircular inner contour of the left half (A) of the cable clamp; A right half docking portion (B5) extending toward the left half (A) of the cable clamp is welded on the inner side of the transition between the right side cable clamp wall (B1) and the right side ear plate (B2) of the cable clamp right half (B), and the right half docking portion (B5) at least has a right side arc plate (B51) of the docking portion matching the semicircular inner contour of the right half (B) of the cable clamp; Between the bottoms of the left half (A) and the right half (B) of the cable clamp connected together in a left-right combination, the left half docking portion (A5) and the right half docking portion (B5) are docked and transitioned, and the docking seam is located between the left ear plate (A2) and the right ear plate (B2), forming a full-circular structural cable hole that can pass through and hold the main cable of the suspension bridge.

3. According to claim 2, the left and right combined welding cable clamp is characterized in that: The left half docking portion (A5) is mainly composed of a docking portion left side arc plate (A51) and a docking portion left side support plate (A52) which are welded and arranged at intervals in the upper and lower positions, and a plurality of docking portion left side rib plates (A53) which are welded and arranged at intervals between the docking portion left side arc plate (A51) and the docking portion left side support plate (A52) along the length direction of the left half (A) of the cable clamp; The forming track of each bolt hole on the left lower pressure-bearing part (A4) passes through the gap of the left half docking part (A5); The right half docking portion (B5) is mainly composed of a docking portion right side arc plate (B51) and a docking portion right side support plate (B52) which are welded and arranged at intervals in the upper and lower positions, and a plurality of docking portion right side rib plates (B53) which are welded and arranged at intervals between the docking portion right side arc plate (B51) and the docking portion right side support plate (B52) along the length direction of the right half of the cable clamp (B); The forming tracks of the bolt holes on the right lower pressure-bearing part (B4) pass through the gap of the right half docking part (B5).

4. The left-right combined welding cable clamp according to claim 2 or 3, characterized in that: When the left half (A) of the cable clamp and the right half (B) of the cable clamp are connected together in a left-right combination, the butt joint edge of the left arc plate (A51) of the butt joint portion and the butt joint edge of the right arc plate (B51) of the butt joint portion are matched with each other by a concave and convex stop interlocking structure.

5. The left-right combined welding cable clamp according to claim 1 or 2, characterized in that: When the left half (A) of the cable clamp and the right half (B) of the cable clamp are connected together in a left-right combination, the butt joint edge of the top of the left cable clamp wall (A1) of the left cable clamp and the butt joint edge of the top of the right cable clamp wall (B1) of the right cable clamp are matched with each other by a concave and convex stop interlocking structure; The left upper pressure-bearing portion (A3) of the left half (A) of the cable clamp is formed at the inner edge of the concave-convex stopper at the top of the left cable clamp wall (A1); The right upper pressure-bearing portion (B3) of the right half (B) of the cable clamp is formed at the inner edge of the concave-convex stopper at the top of the right cable clamp wall (B1).

6. The left-right combined welding cable clamp according to claim 1, characterized in that: A left cover plate (A34) of the upper pressure-bearing part is welded to the top of the left upper pressure-bearing part (A3), and the left cover plate (A34) of the upper pressure-bearing part respectively blocks the gaps of the left upper pressure-bearing part (A3); A right cover plate (B34) of the upper pressure-bearing part is welded to the top of the right half upper pressure-bearing part (B3), and the right cover plate (B34) of the upper pressure-bearing part respectively blocks the gaps of the right half upper pressure-bearing part (B3).

7. A method for forming the left-right combined welding cable clamp according to claim 2, characterized in that: The molding method is to manufacture and mold the left half of the cable clamp and the right half of the cable clamp respectively; The molding method of the left half of the cable clamp comprises the following specific process steps: Step 1. Select a steel plate with a thickness of 30-50 mm and a carbon content of ≤0.18%; Cut the material according to the design structure and size of the base of the left half of the cable clamp, and reserve processing allowance when cutting; Cut the materials according to the design structure and size of the upper pressure-bearing part, lower pressure-bearing part and docking part of the left half of the cable clamp, and reserve processing allowance when cutting; On the molding machine, the molding structure is designed according to the base body of the left half of the cable clamp, and a molding cavity is opened; Step 2. Place the sheet material of the left half of the base of the formed cable clamp in the corresponding molding cavity of the molding machine; Perform multiple molding processes until a semi-circular cable clamp wall portion and an ear plate portion folded outward at the bottom of the cable clamp wall are formed on the sheet material, thereby obtaining a rough base product of the left half of the cable clamp; The curved plate material at the butt joint is curled according to the curvature structure of the designed curved plate; Step 3. The fitter performs a shaping process on the rough base of the left half of the cable clamp until the base of the left half of the cable clamp meets the design requirements of the cable clamp wall fine structure and ear plate fine structure; Step 4. On the inner side of the cable clamp wall of the left half of the cable clamp, weld and arrange multiple sets of arc-shaped code plates at intervals along the length direction; Step 5. Weld the outer plate, inner plate and rib plate of the upper pressure-bearing part to the preset position at the top of the cable clamp wall according to the designed molding structure; The outer plate and rib plate of the lower pressure-bearing part are welded to the preset position outside the transition between the cable clamp wall and the ear plate according to the designed forming structure; Step 6. Weld the outer plate of the upper pressure-bearing part and the outer plate of the lower pressure-bearing part respectively by full penetration welding, so that the outer plate of the upper pressure-bearing part and the outer plate of the lower pressure-bearing part are respectively connected to the base of the left half of the cable clamp; The inner plate and the rib plate of the upper pressure-bearing part and the rib plate of the lower pressure-bearing part are respectively welded by fillet welding, so that the inner plate of the upper pressure-bearing part is connected to the base of the left half of the cable clamp, the rib plate of the upper pressure-bearing part is connected to the inner plate and the outer plate of the upper pressure-bearing part and the base of the left half of the cable clamp, and the rib plate of the lower pressure-bearing part is connected to the outer plate of the lower pressure-bearing part and the base of the left half of the cable clamp; During the welding process of the current plate, the middle area is used as the welding starting point and the welding is advanced toward both ends; During the penetration welding process, the weld on each side of the current plate body is realized by at least two layers of welding, and the welding layers on both sides of the current plate body are performed layer by layer in an alternating manner; During fillet welding, the welding is advanced symmetrically on both sides of the current plate; During the entire welding process, after each layer of welding is completed, the weld layer is subjected to 0.6-1.0MPa compressed air pneumatic vibration to eliminate the stress of the weld layer for 1-2 minutes; Until the upper pressure-bearing part is convexly formed at the top of the cable clamp wall, and the lower pressure-bearing part is convexly formed at the outer side of the transition between the cable clamp wall and the ear plate; Step 7. Weld the arc plate, support plate and rib plate of the docking part to the preset position inside the transition between the cable clamp wall and the ear plate according to the designed forming structure; Step 8. Weld the arc plate of the butt joint to the left half base of the cable clamp by full penetration welding; The support plate and the rib plate of the butt joint are respectively welded by fillet welding, so that the support plate is connected to the base of the left half of the cable clamp, and the rib plate is connected to the arc plate and the support plate of the butt joint, and the base of the left half of the cable clamp; During the welding process of the current plate, the middle area is used as the welding starting point and the welding is advanced toward both ends; During the penetration welding process, the weld on each side of the curved plate is realized by at least two layers of welding, and the welding layers on both sides of the curved plate are performed layer by layer in an alternating manner; During fillet welding, the welding is advanced symmetrically on both sides of the current plate; During the entire welding process, after each layer of welding is completed, the weld layer is subjected to 0.6-1.0MPa compressed air pneumatic vibration to eliminate the stress of the weld layer for 1-2 minutes; Until the butt joint is formed convexly on the inner side of the transition between the cable clamp wall and the ear plate; Step 9. According to the designed bolt hole spacing, corresponding bolt holes are opened on the upper pressure-bearing part and the lower pressure-bearing part respectively; The bolt holes of the upper pressure-bearing part are coaxially formed on the outer plate and the inner plate of the upper pressure-bearing part and pass through the gaps between the rib plates of the upper pressure-bearing part; The bolt holes of the lower pressure-bearing part are coaxially formed on the outer plate of the lower pressure-bearing part and the left half base of the cable clamp, and pass through the gaps between the ribs of the lower pressure-bearing part and between the ribs of the butt joint part; According to the designed pin hole structure, a pin hole is opened on the ear plate; Step 10. Remove the arc-shaped code plate on the inner side of the cable clamp wall and grind it to the design requirements; Quality inspection; The left half of the cable clamp that has passed the quality inspection is placed in a heating furnace, and the temperature of the left half of the cable clamp is raised to 540-560°C at a heating rate of 65-75°C / h, and kept warm for at least 3 hours; Stop heating and let the left half of the cable clamp cool to room temperature in the heating furnace; Take out, finished product; The molding method of the right half of the cable clamp comprises the following specific process steps: Step Ⅰ. Select a steel plate with a thickness of 30-50 mm and a carbon content of ≤0.18%; Cut the material according to the design structure and size of the base of the right half of the cable clamp, and reserve processing allowance when cutting; Cut the materials according to the design structure and size of the upper pressure-bearing part, lower pressure-bearing part and docking part of the right half of the cable clamp, and reserve processing allowance when cutting; On the molding machine, a molding structure is designed for the base of the right half of the cable clamp, and a molding cavity is opened; Step II. Place the sheet material of the right half of the base of the formed cable clamp in the corresponding molding cavity of the molding machine; Perform multiple molding processes until a semi-circular cable clamp wall portion and an ear plate portion folded outward at the bottom of the cable clamp wall are formed on the sheet material, thereby obtaining a rough base product of the right half of the cable clamp; The curved plate material at the butt joint is curled according to the curvature structure of the designed curved plate; Step III. The fitter performs a shaping process on the rough base of the right half of the cable clamp until the base of the right half of the cable clamp meets the design requirements of the cable clamp wall fine structure and ear plate fine structure; Step IV. On the inner side of the cable clamp wall of the right half of the cable clamp, multiple sets of arc-shaped code plates are welded and arranged at intervals along the length direction; Step V. Weld the outer plate, inner plate and rib plate of the upper pressure-bearing part to the preset position at the top of the cable clamp wall according to the designed molding structure; The outer plate and rib plate of the lower pressure-bearing part are welded to the preset position outside the transition between the cable clamp wall and the ear plate according to the designed forming structure; Step VI. Welding the outer plate of the upper pressure-bearing portion and the outer plate of the lower pressure-bearing portion by full penetration welding, respectively, so that the outer plate of the upper pressure-bearing portion and the outer plate of the lower pressure-bearing portion are respectively connected to the base of the right half of the cable clamp; The inner plate and the rib plate of the upper pressure-bearing part and the rib plate of the lower pressure-bearing part are welded by fillet welding respectively, so that the inner plate of the upper pressure-bearing part is connected to the base of the right half of the cable clamp, the rib plate of the upper pressure-bearing part is connected to the inner plate and the outer plate of the upper pressure-bearing part and the base of the right half of the cable clamp, and the rib plate of the lower pressure-bearing part is connected to the outer plate of the lower pressure-bearing part and the base of the right half of the cable clamp; During the welding process of the current plate, the middle area is used as the welding starting point and the welding is advanced toward both ends; During the penetration welding process, the weld on each side of the current plate body is realized by at least two layers of welding, and the welding layers on both sides of the current plate body are performed layer by layer in an alternating manner; During fillet welding, the welding is advanced symmetrically on both sides of the current plate; During the entire welding process, after each layer of welding is completed, the weld layer is subjected to 0.6-1.0MPa compressed air pneumatic vibration to eliminate the stress of the weld layer for 1-2 minutes; Until the upper pressure-bearing part is convexly formed at the top of the cable clamp wall, and the lower pressure-bearing part is convexly formed at the outer side of the transition between the cable clamp wall and the ear plate; Step VII. Weld the arc plate, support plate and rib plate of the docking part to the preset position on the inner side of the transition between the cable clamp wall and the ear plate according to the designed molding structure; Step VIII. Welding the arc plate at the butt joint portion on the right half of the base of the cable clamp by full penetration welding; The support plate and the rib plate of the butt joint are respectively welded by fillet welding, so that the support plate is connected to the base of the right half of the cable clamp, and the rib plate is connected to the arc plate and the support plate of the butt joint, and the base of the right half of the cable clamp; During the welding process of the current plate, the middle area is used as the welding starting point and the welding is advanced toward both ends; During the penetration welding process, the weld on each side of the curved plate is realized by at least two layers of welding, and the welding layers on both sides of the curved plate are performed layer by layer in an alternating manner; During fillet welding, the welding is advanced symmetrically on both sides of the current plate; During the entire welding process, after each layer of welding is completed, the weld layer is subjected to 0.6-1.0MPa compressed air pneumatic vibration to eliminate the stress of the weld layer for 1-2 minutes; Until the butt joint is formed convexly on the inner side of the transition between the cable clamp wall and the ear plate; Step Ⅸ. According to the designed bolt hole spacing, corresponding bolt holes are opened on the upper pressure-bearing portion and the lower pressure-bearing portion; The bolt holes of the upper pressure-bearing part are coaxially formed on the outer plate and the inner plate of the upper pressure-bearing part and pass through the gaps between the rib plates of the upper pressure-bearing part; The bolt holes of the lower pressure-bearing part are coaxially formed on the outer plate of the lower pressure-bearing part and the right half base of the cable clamp, and pass through the gaps between the ribs of the lower pressure-bearing part and between the ribs of the butt joint part; According to the designed pin hole structure, a pin hole is opened on the ear plate; Step X. Remove the arc-shaped code plate on the inner side of the cable clamp wall and grind it to the design requirements; Quality inspection; The right half of the cable clamp that has passed the quality inspection is placed in a heating furnace, and the temperature of the right half of the cable clamp is raised to 540-560°C at a heating rate of 65-75°C / h, and kept warm for at least 3 hours; Stop heating and let the right half of the cable clamp cool to room temperature in the heating furnace; Take out, finished product.

8. The forming method of the left-right combined welding cable clamp according to claim 7, characterized in that: In step 2, the left half of the cable clamp sheet is cut with a concave-convex stop structure formed continuously along the length direction, corresponding to the top butt edge of the designed cable clamp wall; In step II, the sheet material of the right half of the cable clamp is cut with a concave-convex stop structure continuously formed along the length direction, corresponding to the top butt joint edge of the designed cable clamp wall.

9. The forming method of the left-right combined welding cable clamp according to claim 7, characterized in that: In step 2, the arc-shaped plate material of the butt joint portion is cut with a concave-convex stop structure continuously formed along the length direction, corresponding to the outer butt joint edge of the designed arc-shaped plate; In step II, the arc-shaped plate material of the butt joint portion is cut with a concave-convex stop structure continuously formed along the length direction, corresponding to the outer butt joint edge of the designed arc-shaped plate.

Images