A positioning code plate for assembling the saddle head and saddle body of a cable saddle and an assembly method thereof.

Abstract

This invention relates to the field of suspension bridge cable saddle processing technology, specifically disclosing a positioning code plate and assembly method for assembling a cable saddle head and saddle body. The positioning code plate has a code plate body, which, on the same side in the height direction, has a mating surface located on the lower side that is fixedly engaged with the corresponding side of the saddle body's longitudinal rib, and a limiting surface located on the upper side that is engaged with the corresponding side of the saddle head's longitudinal rib with an assembly clearance. In the assembly environment of the saddle head and saddle body, the code plate body is fixedly connected to the corresponding side of the saddle body's longitudinal rib through the mating surface, and the limiting surface of the code plate body stops and limits the saddle head that rests on the top surface of the saddle body's longitudinal rib. This invention makes construction operations convenient and flexible, and can reliably improve the quality of the assembly between the saddle head and saddle body with a polished and tightened fit.

Description

Technical Field

[0001] This invention relates to the field of suspension bridge cable saddle processing technology, specifically a positioning code plate for assembling the saddle head and saddle body, and a method for assembling the saddle head and saddle body of the cable saddle based on the positioning code plate. Background Technology

[0002] In order to reduce the technical drawbacks of cast-welded composite cable saddles due to extensive welding and improve their structural performance, the applicant previously disclosed a cable saddle structure that assembles cast-welded composite cable saddles with a polished and tightened fit, thereby significantly increasing the compressive strength of the joint between the saddle head and the saddle body. For details, please refer to the technology published in Chinese patent literature entitled "A Cast-Welded Composite Cable Saddle Molding Structure", publication number CN 111535176 A, publication date August 14, 2020.

[0003] In the technology disclosed in CN 111535176 A, the saddle head is assembled on the saddle body (i.e., saddle seat) with a polished and tightened fit. The bottom plate of the saddle body has upward-protruding saddle body side longitudinal ribs, and the bottom of the saddle seat has downward-protruding saddle head side longitudinal ribs. During assembly, the bottom plate of the saddle body and the saddle body side longitudinal ribs are first formed into an inverted T-shaped structure. Then, the saddle head is hoisted onto the top surface of the saddle body side longitudinal ribs, so that the bottom surface of the saddle head side longitudinal ribs and the top surface of the saddle body side longitudinal ribs form a polished and tightened fit. Next, the saddle head side longitudinal ribs and the saddle body side longitudinal ribs are fixed by temporary spot welding. Finally, the transverse ribs of the saddle body are welded to the bottom plate, the saddle body side longitudinal ribs, and the saddle head to form the assembly.

[0004] However, the above-mentioned temporary spot welding fixing method has the following technical problems: Firstly, temporary spot welding fixation uses the joint between the bottom surface of the longitudinal rib on the saddle head side and the top surface of the longitudinal rib on the saddle body side as the welding object. This joint is a polished and tightened mating part, and the precision requirements for the mating relationship are very high. Therefore, the local deformation caused by the heat input of temporary spot welding fixation will have an adverse effect on the mating precision of this joint, thus increasing the technical difficulty of assembly construction on the one hand, and being detrimental to the quality assurance of assembly on the other hand. Secondly, after temporary spot welding, the assembled saddle head and saddle body (the saddle body that has not yet formed a complete structure, i.e., the transverse ribs and other parts have not yet been welded) cannot be directly fine-tuned. Once defects are found in the grinding and tightening fit, especially the dynamic defects caused by temporary spot welding, the spot welded points need to be removed and re-ground before re-spot welding. This makes repeated adjustments difficult, construction operations very inconvenient, and the operability poor. Thirdly, during the welding process of the transverse ribs of the saddle body, a large amount of welding heat is input. This welding heat will cause the temporary spot welds to be heated. Since the fixing force of the temporary spot welds is insufficient at high temperatures, this will lead to the risk of misalignment or even temporary fixation failure at the polished and tightened joint between the saddle head and the saddle body. Therefore, the transverse ribs are usually welded and fixed between the bottom plate and the side longitudinal ribs of the saddle body first, and then the transverse ribs are welded to the saddle head. The pre-fixed transverse ribs are used to assist in supporting the saddle head and prevent temporary fixation failure. However, this has a direct adverse effect on the quality of the polished and tightened joint, which can easily cause gaps at the polished and tightened joint and reduce compressive stress. Fourth, after the cable saddle is assembled, the polished and tightened mating parts need to be sealed and protected against corrosion. Due to the presence of temporary spot welds (including the presence of residual structures after removal), the sealing operation is difficult and the sealing effect is poor. Therefore, continuous welding is used to seal the edges. On the one hand, the presence of welding residual stress has an adverse effect on the structural performance of the cable saddle. On the other hand, the thermal deformation of welding can easily cause gaps at the polished and tightened mating parts, thus reducing the compressive stress.

[0005] In summary, given the unique nature of the assembly of the saddle head and saddle body in the aforementioned cable saddle using a polished and tightened fit, it is necessary to design effective technical means to maximize the technical effects of the polished and tightened fit in the cable saddle structure. Summary of the Invention

[0006] The technical objective of this invention is to address the unique nature of the assembly of the saddle head and saddle body of a suspension bridge cable saddle using a polished and tightened fit, as well as the shortcomings of existing technologies. This invention provides a positioning code plate for assembling the cable saddle head and saddle body, which eliminates the need for temporary spot welding during the polished and tightened fit process, facilitating construction operations and reliably improving the assembly quality of the saddle head and saddle body using this positioning code plate. It also provides a method for assembling the cable saddle head and saddle body based on this positioning code plate.

[0007] The technical objective of this invention is achieved through the following technical solution: a positioning code plate for assembling a saddle head and a saddle body. The positioning code plate has a code plate body. On the same side in the height direction, the code plate body has a mating surface located on the lower side that is fixedly engaged with the side of the saddle body longitudinal rib, and a limiting surface located on the upper side that is engaged with the side of the saddle head longitudinal rib with an assembly gap. In the assembly environment of the saddle head and saddle body of the cable saddle, the code plate body is fixedly connected to the corresponding side of the saddle body side longitudinal rib through the mating surface. The limiting surface of the code plate body extends upward in the height direction, exceeding the top surface of the saddle body side longitudinal rib. The limiting surface of the code plate body sits on the saddle head on the top surface of the saddle body side longitudinal rib, and stops and limits it in the limiting lateral direction at the corresponding side of the saddle head side longitudinal rib.

[0008] Furthermore, the mating surface and the limiting surface of the code plate body are matched in a staggered relationship in the limiting lateral direction. The mating surface is closer to the thickness center of the longitudinal rib of the saddle body than the limiting surface. The mating surface and the limiting surface have a lateral clearance edge formed along the limiting lateral direction. In the assembly environment of the saddle head and saddle body of the cable saddle, the lateral clearance edge of the code plate body is lower than the top surface of the saddle body side longitudinal rib, and is spaced in the height direction with the bottom surface of the saddle head side longitudinal rib that sits on the top surface of the saddle body side longitudinal rib.

[0009] Furthermore, between the limiting surface and the lateral clearance edge of the code plate body, there is a vertical clearance edge formed along the height direction. The vertical clearance edge and the limiting surface are matched in a staggered relationship in the limiting lateral direction. The limiting surface is closer to the thickness center of the longitudinal rib of the saddle body than the vertical clearance edge. In the assembly environment of the saddle head and saddle body of the cable saddle, the vertical clearance edge of the code plate body and the corresponding side of the saddle head side longitudinal rib sitting on the top surface of the saddle body side longitudinal rib are matched in the limiting lateral direction, so that the bottom corresponding edge of the saddle head side longitudinal rib is within the space enclosed by the vertical clearance edge and the lateral clearance edge.

[0010] Furthermore, at the top of the limiting surface of the code plate body, there is a guide slope with an outwardly expanding slope structure.

[0011] Furthermore, the surface roughness accuracy of the limiting surface of the code plate body is ≥12.5.

[0012] Furthermore, in the height direction of the code plate body, the height dimension of the mating surface is greater than the height dimension of the limiting surface, and is at least twice the height dimension of the limiting surface; The thickness of the code plate body in the longitudinal direction of the cable saddle is at least 20 mm.

[0013] An assembly method for assembling a cable saddle head and a saddle body includes an independently formed saddle head and separately formed plates that make up the saddle body. The bottom center of the saddle head has a downward-protruding saddle head side longitudinal rib that is formed along the longitudinal direction of the saddle. Each plate of the saddle body includes at least a bottom plate, saddle body side longitudinal ribs, and multiple transverse rib plates; The cable saddle assembly method is based on the aforementioned positioning code plate structure; The cable saddle assembly method specifically includes the following process steps: S1. According to the design requirements of grinding and tightening fit, the bottom surface of the longitudinal rib on the saddle head side and the top surface of the longitudinal rib on the saddle body side are ground. Prepare multiple positioning code plates of the same specifications, and divide them into multiple groups of two plates each; S2. Weld the bottom surface of the saddle side longitudinal rib to the top surface of the base plate, so that the saddle side longitudinal rib and the base plate are fitted with an inverted T-shaped structure. S3. Arrange multiple sets of positioning code plates along the length of the saddle side longitudinal rib, so that each set of positioning code plates is placed on both sides of the saddle side longitudinal rib, and the mating surface of each positioning code plate is fixed to the corresponding side of the saddle side longitudinal rib by welding. At this time, the lateral clearance edge of the positioning code plate is lower than the top surface of the saddle side longitudinal rib, and the lowest point of the limiting surface is higher than the top surface of the saddle side longitudinal rib. Until the same set of positioning code plates are fixedly connected on both sides of the longitudinal rib of the saddle body, the same set of positioning code plates will form a sitting limiting space at the top surface of the longitudinal rib of the saddle body that can stop and limit the movement along the two sides of the limiting transverse direction. Until each set of positioning code plates is fixedly connected on both sides of the longitudinal rib of the saddle body; S4. Lift the saddle head to the top of the saddle body and align the thickness center of the saddle head side longitudinal reinforcement with the thickness center of the saddle body side longitudinal reinforcement. Slowly lower the saddle head above the saddle body, so that the side longitudinal ribs of the saddle head slowly fall within the seating limit space surrounded by each set of positioning plates. Until the bottom surface of the longitudinal rib on the saddle head sits on the top surface of the longitudinal rib on the saddle body, the two are required to form a polished and tight fit. The saddle head, which sits on the top surface of the longitudinal ribs on the side of the saddle body, is stopped and limited by each set of positioning plates on both sides of the longitudinal ribs on the side of the saddle head. S5. According to the design requirements of polishing and tightening fit, check the joint gap between the bottom surface of the longitudinal rib of the saddle head side and the top surface of the longitudinal rib of the saddle body side; If the gap meets the standard, proceed to step S6; If the joint gap does not meet the standard, mark the high point area at the joint gap, lift the saddle head from the top surface of the saddle body side longitudinal rib, and re-grind the bottom surface of the saddle head side longitudinal rib and the top surface of the saddle body side longitudinal rib. After the grinding is completed, repeat S4 and S5. S6. Based on the design structure of the cable saddle, the multiple transverse ribs that make up the saddle body are divided into multiple groups of two pieces each; Multiple sets of transverse ribs are arranged at intervals along the length of the saddle side longitudinal ribs, so that each set of transverse ribs is placed on both sides of the saddle side longitudinal ribs, and the inner side of each transverse rib is fixed to the corresponding side of the saddle side longitudinal rib by welding. At this time, the upper part of the transverse rib extends upward at the top surface of the saddle side longitudinal rib. Until the same set of transverse ribs are fixedly connected on both sides of the saddle body side longitudinal rib, the upper part of the same set of transverse ribs forms a U-shaped groove space at the top surface of the saddle body side longitudinal rib that can accommodate the saddle head, and accommodates the saddle head that is already located on the top surface of the saddle body side longitudinal rib from both sides. S7. Weld the upper inner side of the same set of transverse ribs to the corresponding side of the saddle head; Until each set of transverse ribs is fixedly connected on both sides of the saddle head; S8. The bottom edges of the same set of transverse ribs are fixedly connected to the base plate by welding; Continue until all groups of transverse ribs are fixedly connected to the top surface of the base plate; S9. Remove each positioning plate from both sides of the longitudinal rib of the saddle body; S10. Apply sealant to the edge of the joint between the polished and tightened longitudinal ribs of the saddle body and the saddle head to achieve corrosion protection at the polished and tightened joint.

[0014] Furthermore, the welding sequence of each group of transverse ribs along the length of the saddle body side longitudinal ribs / saddle head is either an alternating process from the middle position to both ends or a symmetrical process. The two transverse ribs of the same group are welded synchronously on both sides of the saddle body side longitudinal rib / saddle head with the same welding parameters and welding speed.

[0015] Furthermore, when the inner side of the transverse rib plate is joined to the corresponding side of the longitudinal rib of the saddle body, a symmetrical welding process of upward and downward is performed starting from the middle position; or, when the inner side of the transverse rib plate is joined to the corresponding side of the longitudinal rib of the saddle body, welding is performed in the following order: first upward / downward, then downward / upward, starting from the middle position. When the upper inner side of the transverse rib plate is joined to the corresponding side of the saddle head, welding is performed sequentially from bottom to top. When the bottom edge of the transverse rib plate is joined to the top surface of the base plate, welding is performed sequentially from the inside out.

[0016] Furthermore, the thickness of the top surface of the longitudinal rib on the side of the saddle body is ≥140mm; The thickness of the bottom surface of the longitudinal rib on the saddle head side is ≥160mm; In S4, when the saddle head side longitudinal rib sits in place on the top surface of the saddle body side longitudinal rib, the bottom surface of the saddle head side longitudinal rib extends beyond the top surface of the saddle body side longitudinal rib in the limiting lateral direction, and the assembly gap between the limiting surface of the positioning plate and the corresponding side of the saddle head side longitudinal rib allows a feeler gauge of 0.1mm to pass through. In S4, the grinding and tightening fit between the bottom surface of the saddle head side longitudinal rib and the top surface of the saddle body side longitudinal rib is as follows: the surface roughness accuracy is not less than 6.3, the grinding and tightening area is such that a 0.1mm feeler gauge does not pass through the entire length, the sum of the non-penetrating areas under the 0.1mm feeler gauge inspection is ≥90%, and the maximum edge gap is ≤0.3mm.

[0017] The beneficial technical effects of the present invention are as follows: Addressing the unique characteristic of the assembly of the saddle head and saddle body of the suspension bridge cable saddle with a polished and tightened fit, the above-mentioned technical measures utilize a simple and easily formable structure to create a positioning plate that can be fixedly connected to the longitudinal ribs on the side of the saddle body and provide a stop and limit for the longitudinal ribs on the side of the saddle head. Through the fixed connection between the positioning plate and the longitudinal ribs on the side of the saddle body, a reliable stopping and limiting space is formed on the top surface of the longitudinal ribs on the side of the saddle body. This eliminates the need for temporary spot welding to fix the polished and tightened fit when the saddle head is assembled on the top surface of the longitudinal ribs on the side of the saddle body with a polished and tightened fit. This avoids the series of technical drawbacks caused by temporary spot welding, and has the technical advantages of facilitating construction operations and ensuring the quality of cable saddle assembly.

[0018] Based on the aforementioned positioning code plate structure, the assembly method uses multiple sets of positioning code plates connected to both sides of the saddle body's side longitudinal ribs to reliably stop and limit the saddle head that is polished and tightened, ensuring the stability of support and positioning. This eliminates the need for temporary spot welding to fix the polished and tightened mating parts, facilitates fine-tuning operations, and has virtually no adverse effects on the polished and tightened mating area. Therefore, when the transverse ribs of the saddle body are welded, they are first fixedly connected to the side longitudinal ribs, then fixedly connected to the saddle head, and finally fixedly connected to the bottom plate of the saddle body. This welding process controls, and even eliminates, the gaps at the polished and tightened mating parts caused by welding, ensuring that the forces at the polished and tightened mating parts are primarily compressive stress. This maximizes the technical effects of the polished and tightened mating relationship within the cable saddle structure.

[0019] Therefore, the above-mentioned technical measures, taking into account the special characteristics of the assembly of the saddle head and saddle body of the suspension bridge cable saddle with a polished and tightened fit, can reliably realize the assembly of the saddle head and saddle body, while eliminating the need for temporary spot welding fixation during the polished and tightened fit. The reliable stop and limit support of the positioning plate makes the construction operation convenient and flexible, thereby reliably improving the quality of the assembly of the saddle head and saddle body with a polished and tightened fit, and maximizing the technical effect of the polished and tightened fit in the cable saddle structure. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of one structure of the positioning code plate of the present invention.

[0021] Figure 2 for Figure 1 The diagram shows the structure of the positioning code plate and the side longitudinal rib of the saddle body to form a sitting and limiting space.

[0022] Figure 3 This is a schematic diagram of the saddle head settling onto the top surface of the longitudinal rib on the side of the saddle body via a positioning code plate in the assembly method of the present invention.

[0023] Figure 4 for Figure 3 Side view.

[0024] Figure 5 This is a schematic diagram of the welding sequence at the same cross-section in the assembly method of the present invention.

[0025] Meaning of the labels in the diagram: 1—Code plate body; 11—Mating surface; 12—Limiting surface; 13—Guide slope; 14—Lateral clearance edge; 15—Vertical clearance edge; 2—Saddle body side longitudinal rib; 3—Saddle head side longitudinal rib; 4—Sitting and limiting space; 5—Base plate; 6—Transverse rib plate; 7—Protruding rib; Y—Height direction; X—Limiting lateral direction; Z—Cable saddle longitudinal direction. Detailed Implementation

[0026] This invention relates to the field of suspension bridge cable saddle processing technology, specifically a positioning code plate for assembling the saddle head and saddle body, and a method for assembling the saddle head and saddle body based on the positioning code plate. The following description is in conjunction with the accompanying drawings. Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The technical solution of this invention will be clearly and thoroughly explained.

[0027] It should be noted that the accompanying drawings of this invention are schematic, and unnecessary details have been simplified to clarify the technical objectives of this invention, so as to avoid obscuring the technical solutions contributed by this invention to the prior art. Furthermore, the terms "approximately" or "basically" used below to refer to quantities or fit relationships mean that reasonable assembly and processing errors are allowed in the industry, and do not literally describe absolute quantities or fit relationships.

[0028] Referring to the technology published in Chinese patent document CN 111535176 A, the cast-welded composite cable saddle typically uses extensive penetration welding to assemble the cast saddle head and the welded saddle body (saddle seat) together. However, the high residual stress resulting from extensive penetration welding directly reduces the compressive strength of the joint between the saddle head and saddle body, adversely affecting the overall structural performance of the cable saddle. The technology in CN111535176 A assembles the cast saddle head and the welded saddle body together using a polished and tightened fit structure. This eliminates the need for complex, difficult, and high residual stress penetration welding, offering advantages such as convenient assembly and significantly improved compressive strength at the joint between the saddle head and saddle body, thereby enhancing the overall structural stability of the cable saddle.

[0029] In the technology disclosed in CN 111535176 A, the lateral (i.e., the X-direction in the illustration of this invention) outer contour of the saddle head is U-shaped, and the lower width of the lateral outer contour of the saddle head is slightly larger than the upper width; the top of the saddle body has a groove space that matches the outer contour of the saddle head, and the groove opening width of the groove space is smaller than the groove bottom width; the saddle head is assembled in the groove space at the top of the saddle body with a polished and tight fit structure. Based on the aforementioned fit relationship between the lateral outer contour of the saddle head and the groove space at the top of the saddle body, during its forming, the saddle head is first assembled on the top surface of the longitudinal rib of the saddle body side, and then the transverse rib plate of the saddle body is welded to the saddle body's constituent structure and the saddle head. This requires the transverse rib plate to provide positioning support for the assembly structure of the saddle head on the longitudinal rib of the saddle body before and during welding, thus forming the positioning code plate structure and the assembly method based on the positioning code plate structure of this invention.

[0030] See Figure 1 , Figure 2 and Figure 3 As shown, the positioning code plate of the present invention has a code plate body 1, which is a plate-shaped structure. To ensure its structural strength in the working environment, it is usually formed from a Q235 steel plate with a thickness (i.e., the dimension corresponding to the longitudinal direction Z of the cable saddle) of about 20mm. In order to accommodate the fixed connection with the side longitudinal rib 2 of the saddle body and to stop and limit the side longitudinal rib 3 of the saddle head, the code plate body 1 has a mating surface 11 on the same side in the height direction Y, which is located on the lower side and is fixedly fitted with the side corresponding to the side longitudinal rib 2 of the saddle body by welding, and a limiting surface 12 on the upper side and is fitted with the side corresponding to the side longitudinal rib 3 of the saddle head by assembly clearance.

[0031] To avoid interfering with the fit between the bottom surface of the saddle head side longitudinal reinforcement 3 and the top surface of the saddle body side longitudinal reinforcement 2 under working conditions and to facilitate construction operations, the mating surface 11 and the limiting surface 12 of the aforementioned code plate body 1 are fitted in a staggered relationship in the limiting transverse X direction. The mating surface 11 is closer to the thickness center of the saddle body side longitudinal reinforcement 2 than the limiting surface 12, resulting in a transverse clearance edge 14 formed along the limiting transverse X direction between the mating surface 11 and the limiting surface 12. Furthermore, between the limiting surface 12 and the transverse clearance edge 14 of the aforementioned code plate body 1, there is a vertical clearance edge 15 formed along the height direction Y. The vertical clearance edge 15 and the limiting surface 12 are fitted in a staggered relationship in the limiting transverse X direction, with the limiting surface 12 closer to the thickness center of the saddle body side longitudinal reinforcement 2 than the vertical clearance edge 15. The length of the aforementioned lateral clearance edge 14 along the limiting lateral X direction and the height of the vertical clearance edge 15 along the height direction Y direction are specifically determined according to the fit dimensions and clearance necessity between the saddle body side longitudinal rib 2 and the saddle head side longitudinal rib 3. The clearance necessity refers to the fact that in the fit structure of the saddle body side longitudinal rib 2 and the saddle head side longitudinal rib 3 with a specific size structure, the mating surface 11 is fixedly connected to the corresponding side of the saddle body side longitudinal rib 2, and the limiting surface 12 stops and limits the corresponding side of the saddle head side longitudinal rib 3. However, at this time, the positioning plate will not cause positional interference to the joint between the saddle head side longitudinal rib 3 and the saddle body side longitudinal rib 2. Under normal circumstances, the thickness dimension of the top surface of the saddle body side longitudinal rib 2 (corresponding to the limiting lateral X direction) is ≥140mm, for example, 150mm; the thickness dimension of the bottom surface of the saddle head side longitudinal rib 3 (corresponding to the limiting lateral X direction) is ≥160mm, for example, 170mm.

[0032] In the assembly environment of the saddle head and saddle body of the above-mentioned positioning code plate, the code plate body 1 is fixedly connected to the corresponding side of the saddle body side longitudinal rib 2 by welding through the mating surface 11. At this time: - The limiting surface 12 of the code plate body 1 extends upward in the height direction Y, exceeding the top surface of the saddle body side longitudinal rib 2; - The lateral clearance edge 14 of the code plate body 1 is lower than the top surface of the saddle body side longitudinal rib 2, and is spaced in the height direction Y with the bottom surface of the saddle head side longitudinal rib 3 which sits on the top surface of the saddle body side longitudinal rib 2. Thus, the limiting surface 12 of the code plate body 1 stops and limits the saddle head, which sits on the top surface of the saddle body side longitudinal rib 2, along the limiting transverse X at the corresponding side of the saddle head side longitudinal rib 3; the vertical clearance edge 15 of the code plate body 1 and the corresponding side of the saddle head side longitudinal rib 3, which sits on the top surface of the saddle body side longitudinal rib 2, are spaced together in the limiting transverse X, so that the bottom corresponding corner of the saddle head side longitudinal rib 3 is within the space enclosed by the vertical clearance edge 15 and the transverse clearance edge 14, and no positional interference occurs.

[0033] Based on the positioning (limiting) and supporting functions of the positioning code plate in the assembly of the saddle head and saddle body, and considering the high-precision fit requirements between the saddle head side longitudinal rib 3 and the saddle body side longitudinal rib 2 during saddle head assembly, a guide slope 13 with an outwardly expanding inclined surface structure is provided at the top of the limiting surface 12 of the code plate body 1. This allows the seated saddle head to smoothly settle onto the top surface of the saddle body side longitudinal rib 2 along the guide slope 13. Furthermore, the surface roughness of the limiting surface 12 of the code plate body 1 is typically required to be ≥12.5.

[0034] In the above-mentioned positioning code plate forming structure, since the mating surface 11 needs to form a fixed connection with the saddle side longitudinal rib 2, it is necessary to ensure the strength of the connection structure. Therefore, in the height direction Y of the code plate body 1, the height dimension of the mating surface 11 is greater than the height dimension of the limiting surface 12, and is at least twice the height dimension of the limiting surface 12, usually ≥120mm, such as 135mm, etc.

[0035] The above describes the positioning plate structure used when assembling the saddle head and saddle body with a polished and tightened fit, eliminating the need for temporary spot welding between them. Based on this positioning plate structure, the polished and tightened fit between the saddle head and saddle body of the cable saddle forms the following assembly sequence.

[0036] See Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown in the figure and the technology disclosed in CN 111535176 A, based on the above-mentioned positioning code plate structure, the present invention assembles the saddle head and saddle body of the cable saddle. Firstly, it includes a cast, independently formed saddle head. The bottom center of this saddle head has a saddle head side longitudinal rib 3 formed along the longitudinal direction Z of the cable saddle. The thickness of the bottom surface of the saddle head side longitudinal rib 3 (corresponding to the limiting transverse X direction) is ≥160mm, for example, 170mm. Both sides of the saddle head have multiple outwardly protruding ribs 7 used as connecting transverse ribs 6 of the saddle body. The maximum outward protrusion height of each rib 7 on the saddle head is typically ≤100mm, and the forming thickness of each rib 7 (corresponding to the longitudinal direction Z of the cable saddle) is greater than the thickness of the transverse rib 6 to be connected. It also includes separately formed plates that constitute the saddle body (i.e., the saddle body is a welded structure). Each plate of the saddle body includes at least a bottom plate 5, saddle body side longitudinal ribs 2, and multiple transverse ribs 6, and usually also includes multiple auxiliary ribs.

[0037] The assembly of the saddle head and saddle body of the cable saddle in this invention specifically includes the following process steps: S1. According to the design requirements of grinding and tightening fit, the bottom surface of the saddle head side longitudinal rib 3 and the top surface of the saddle body side longitudinal rib 2 are ground. Typically, the grinding and tightening fit between the bottom surface of the saddle head side longitudinal rib 3 and the top surface of the saddle body side longitudinal rib 2, as required by the design, is as follows: the surface roughness accuracy is not less than 6.3, a 0.1mm feeler gauge cannot pass through the entire length of the grinding and tightening area, the sum of the non-penetrating areas under the 0.1mm feeler gauge inspection is ≥90%, and the maximum edge gap is ≤0.3mm. Prepare multiple positioning code plates of the same specifications, and divide them into multiple groups of two plates each, usually 2 to 3 groups; S2. Weld the bottom surface of the saddle side longitudinal rib 2 to the top surface of the base plate 5, so that the saddle side longitudinal rib 2 and the base plate 5 are fitted with an inverted T-shaped structure. The welding process involves welding on both sides in the thickness direction (i.e., the limiting transverse X direction) due to the thickness dimensions of the saddle side longitudinal reinforcement 2 and the requirements for structural strength. This welding is essentially synchronous welding under the same welding parameters. Figure 5 (the part number ① in the text). S3. Arrange multiple sets of positioning code plates along the length direction (i.e., the longitudinal direction Z of the cable saddle) of the saddle side longitudinal rib 2 at intervals (in the case of a total of 2 sets, arrange them at both ends near the length direction; in the case of a total of 3 sets, arrange them at both ends and the middle near the length direction), so that each set of positioning code plates is placed on both sides of the saddle side longitudinal rib 2, and the joint surface 11 of each positioning code plate is fixed to the corresponding side of the saddle side longitudinal rib 2 by welding. At this time, the lateral clearance edge 14 of the positioning code plate is lower than the top surface of the saddle side longitudinal rib 2, and the lowest point of the limiting surface 12 is slightly higher than the top surface of the saddle side longitudinal rib 2. Until the same set of positioning code plates are fixedly connected on both sides of the saddle side longitudinal rib 2, the same set of positioning code plates form a sitting limiting space 4 at the top surface of the saddle side longitudinal rib 2 that can stop and limit the movement along the limiting transverse X sides. Until each set of positioning code plates is fixedly connected on both sides of the longitudinal rib 2 on the side of the saddle body; S4. Lift the saddle head to the top of the saddle body and align the thickness center of the saddle head side longitudinal rib 3 with the thickness center of the saddle body side longitudinal rib 2. Slowly lower the saddle head above the saddle body, so that the side longitudinal ribs 3 of the saddle head fall down guided by the guide slopes 13 of each set of positioning code plates, and slowly fall down within the sitting limit space 4 enclosed by each set of positioning code plates. Until the bottom surface of the saddle head side longitudinal rib 3 sits on the top surface of the saddle body side longitudinal rib 2, the two are required to form a polished and tight fit relationship; that is, the polished and tight fit relationship between the bottom surface of the saddle head side longitudinal rib 3 and the top surface of the saddle body side longitudinal rib 2 as required by the design is that the surface roughness accuracy is not less than 6.3, the polished and tight area is not allowed to pass through the entire length of the 0.1mm feeler gauge, the sum of the non-penetrating areas under the inspection of the 0.1mm feeler gauge is ≥90%, and the maximum edge gap is ≤0.3mm; Since the thickness of the saddle head side longitudinal rib 3 is greater than the thickness of the saddle body side longitudinal rib 2, and the two are aligned under the thickness center alignment, the thickness direction (i.e. X direction) of the saddle head side longitudinal rib 3 extends from both sides of the saddle body side longitudinal rib 2. The extended part is located in the space enclosed by the horizontal clearance edge 14 and the vertical clearance edge 15 of the positioning code plate. The saddle head, which sits on the top surface of the saddle body side longitudinal rib 2, is stopped and limited by each set of positioning plates on both sides of the saddle head side longitudinal rib 3. Under normal circumstances, in order to meet the stop and limit requirements and make appropriate fine adjustments, when the saddle head side longitudinal rib 3 sits on the top surface of the saddle body side longitudinal rib 2, the bottom surface of the saddle head side longitudinal rib 3 extends out of the top surface of the saddle body side longitudinal rib 2 in the limiting transverse X, and the assembly gap between the limiting surface 12 of the positioning plate and the corresponding side surface of the saddle head side longitudinal rib 3 allows a feeler gauge of 0.1mm to pass through. S5. In accordance with the above-mentioned design requirements for polishing and tightening, inspect the joint gap between the bottom surface of the saddle head side longitudinal rib 3 and the top surface of the saddle body side longitudinal rib 2. If the gap meets the standard, proceed to step S6; If the joint gap does not meet the standard, mark the high point area at the joint gap, lift the saddle head from the top surface of the saddle body side longitudinal rib 2, and re-grind the bottom surface of the saddle head side longitudinal rib 3 and the top surface of the saddle body side longitudinal rib 2. After the grinding is completed, repeat S4 and S5. S6. Based on the design structure of the cable saddle, and referring to the forming position of the convex ribs 7 on both sides of the saddle head, divide the multiple transverse ribs 6 that make up the saddle body into multiple groups of two pieces each. Multiple sets of transverse ribs 6 are arranged at intervals along the length direction (i.e., the longitudinal direction Z of the cable saddle) of the saddle side longitudinal rib 2, so that each set of transverse ribs 6 is placed on both sides of the saddle side longitudinal rib 2, and the inner side of each transverse rib 6 is fixed to the corresponding side of the saddle side longitudinal rib 2 by welding. At this time, the upper part of the transverse rib 6 extends upward at the top surface of the saddle side longitudinal rib 2. Until the same set of transverse ribs 6 are fixedly connected on both sides of the saddle body side longitudinal rib 2, the upper part of the same set of transverse ribs 6 forms a U-shaped groove space at the top surface of the saddle body side longitudinal rib 2 that can accommodate the saddle head, and accommodates the saddle head that is already located on the top surface 2 of the saddle body side longitudinal rib from both sides. Regarding the welding of the transverse rib plate 6 that makes up the saddle body, in order to control the adverse effects of welding deformation on the grinding and tightening fit structure, that is, to control the gap between the bottom surface of the longitudinal rib 3 on the saddle head side and the top surface of the longitudinal rib 2 on the saddle body side caused by welding deformation, and to ensure that the forces between the bottom surface of the longitudinal rib 3 on the saddle head side and the top surface of the longitudinal rib 2 on the saddle body side are compressive stress as much as possible, the welding sequence is as follows: -The welding sequence of each group of transverse ribs 6 along the length of the saddle side longitudinal ribs 2 is an alternating process from the middle position to both ends. For example, first the middle position, then the right / left position immediately adjacent to the middle position, then the left / right position immediately adjacent to the middle position, and so on; or, if there are sufficient welding equipment and personnel, the process can be carried out symmetrically, for example, first the middle position, then symmetrically advancing the left and right positions immediately adjacent to the middle position, and so on. - The two transverse ribs 6 of the same group are welded synchronously on both sides of the longitudinal rib 2 of the saddle body with the same welding parameters and welding speed; - When the inner side of each transverse rib plate 6 is joined at the corresponding side of the longitudinal rib 2 on the saddle body, a symmetrical welding process is performed upward and downward, starting from the middle position (e.g., Figure 5 (as shown in part ② of the sequence), thus, four welding stations are required for welding the same group of transverse ribs at the same cross section. If the welding personnel or facilities are limited and it is not possible to weld symmetrically at four welding stations, then as a second-best option, welding is performed on a single transverse rib starting from the middle position, first upward / downward, then downward / upward in sequence. This method is obviously less effective in controlling welding deformation than the aforementioned symmetrical welding. By following the above welding sequence, welding deformation is kept to a minimum, so as to reduce or even eliminate the adverse effects of welding deformation. S7. Weld and fix the upper inner side of the same set of transverse ribs 6 to the corresponding side of the saddle head; Until each set of transverse ribs 6 is fixedly connected on both sides of the saddle head; To control the adverse effects of welding deformation on the polished and tightened fit structure, the following welding sequence shall be performed: -The welding sequence of each group of transverse ribs 6 along the length of the saddle head is an alternating process from the middle position to both ends. For example, first the middle position, then the right / left position immediately adjacent to the middle position, then the left / right position immediately adjacent to the middle position, and so on; or, if there are sufficient welding equipment and personnel, the process can be carried out symmetrically, for example, first the middle position, then symmetrically advancing the left and right positions immediately adjacent to the middle position, and so on. - The two transverse rib plates 6 of the same group are welded synchronously on both sides of the saddle head with the same welding parameters and welding speed; - When the upper inner edge of each transverse rib plate 6 is joined to the corresponding side of the saddle head, welding is performed sequentially from bottom to top (e.g., Figure 5 (Sequence number ③ part); By following the above welding sequence and combining it with the welding sequence in S6, welding deformation is controlled to a minimum, so as to reduce or even eliminate the adverse effects of welding deformation. S8. The bottom edge of the same set of transverse ribs 6 is fixedly connected to the base plate 5 by welding; Until all groups of transverse ribs 6 are fixedly connected to the top surface of the base plate 5; To control the adverse effects of welding deformation on the polished and tightened fit structure, the following welding sequence shall be performed: -The welding sequence of each group of transverse ribs 6 along the length of the saddle side longitudinal ribs 2 is an alternating process from the middle position to both ends. For example, first the middle position, then the right / left position immediately adjacent to the middle position, then the left / right position immediately adjacent to the middle position, and so on; or, if there are sufficient welding equipment and personnel, the process can be carried out symmetrically, for example, first the middle position, then symmetrically advancing the left and right positions immediately adjacent to the middle position, and so on. - The two transverse ribs 6 of the same group are welded synchronously on both sides of the longitudinal rib 2 of the saddle body with the same welding parameters and welding speed; - When the bottom edge of each transverse rib plate 6 is joined to the top surface of the base plate 5, welding is performed sequentially from the inside out (e.g., Figure 5 (Sequence number ④ in the text) Following the above welding sequence and in conjunction with the welding sequences in S6 and S7, welding deformation is controlled to a minimum to reduce or even eliminate the adverse effects of welding deformation. In other words, the stress difference (on both sides of the longitudinal rib 2 of the saddle body) is controlled to a minimum to prevent welding stress from affecting the contact rate of the polished and tightened mating parts. If there are auxiliary stiffening plates arranged on the bottom plate between adjacent transverse ribs, then each auxiliary stiffening plate shall be welded in accordance with the above welding sequence and requirements, so that each auxiliary stiffening plate is fixedly connected to the bottom plate and the adjacent transverse ribs. S9. After the above welding is completed, the plates of the saddle body are welded together to form an integral structure, and the saddle head is also firmly connected to the saddle body. At this point, the positioning plates can be removed from both sides of the saddle side longitudinal rib 2 of the saddle body. Grind the connecting parts of the positioning code plate; S10. Apply sealant to the edge of the joint gap where the saddle body side longitudinal rib 2 and the saddle head side longitudinal rib 3 are polished and tightened together, so as to achieve corrosion protection at the polished and tightened joint. Thus, the assembly of the cast-welded combined cable saddle is formed.

[0038] The above specific technical solutions are only used to illustrate the present invention, and are not intended to limit it.

[0039] Although the present invention has been described in detail with reference to the specific technical solutions described above, those skilled in the art should understand that modifications can still be made to the specific technical solutions described above, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the present invention.

Claims

1. A positioning code plate for assembling a saddle head and saddle body, characterized in that: The positioning code plate has a code plate body (1). The code plate body (1) has a mating surface (11) on the same side in the height direction (Y) that is fixedly engaged with the side of the saddle body side longitudinal rib (2) of the saddle body, located on the lower side, and a limiting surface (12) that is engaged with the side of the saddle head side longitudinal rib (3) of the saddle head with an assembly clearance on the upper side. In the assembly environment of the saddle head and saddle body of the cable saddle, the code plate body (1) is fixedly connected to the corresponding side of the saddle body side longitudinal rib (2) through the mating surface (11). The limiting surface (12) of the code plate body (1) extends upward in the height direction (Y) and exceeds the top surface of the saddle body side longitudinal rib (2). The limiting surface (12) of the code plate body (1) stops and limits the saddle head sitting on the top surface of the saddle body side longitudinal rib (2) along the limiting transverse direction (X) at the corresponding side of the saddle head side longitudinal rib (3).

2. The positioning code plate for assembling the saddle head and saddle body according to claim 1, characterized in that: The mating surface (11) and the limiting surface (12) of the code plate body (1) are mated in a staggered relationship in the limiting transverse (X) direction. The mating surface (11) is closer to the thickness center of the saddle side longitudinal rib (2) than the limiting surface (12). The mating surface (11) and the limiting surface (12) have a transverse clearance edge (14) formed along the limiting transverse (X) direction. In the assembly environment of the saddle head and saddle body of the cable saddle, the lateral clearance edge (14) of the code plate body (1) is lower than the top surface of the saddle body side longitudinal rib (2), and is spaced in the height direction (Y) with the bottom surface of the saddle head side longitudinal rib (3) which sits on the top surface of the saddle body side longitudinal rib (2).

3. The positioning code plate for assembling the saddle head and saddle body according to claim 1, characterized in that: Between the limiting surface (12) and the lateral clearance edge (14) of the code plate body (1), there is a vertical clearance edge (15) formed along the height direction (Y). The vertical clearance edge (15) and the limiting surface (12) are matched in a staggered relationship in the limiting lateral direction (X). The limiting surface (12) is closer to the thickness center of the saddle side longitudinal rib (2) than the vertical clearance edge (15). In the assembly environment of the saddle head and saddle body of the cable saddle, the vertical clearance edge (15) of the code plate body (1) and the corresponding side of the saddle head side longitudinal rib (3) sitting on the top surface of the saddle body side longitudinal rib (2) are spaced together in the limiting lateral (X) so that the bottom corresponding edge of the saddle head side longitudinal rib (3) is within the space enclosed by the vertical clearance edge (15) and the lateral clearance edge (14).

4. The positioning code plate for assembling the saddle head and saddle body according to claim 1, 2 or 3, characterized in that: At the top of the limiting surface (12) of the code plate body (1), there is a guide slope (13) with an outwardly expanding slope structure.

5. The positioning code plate for assembling the saddle head and saddle body according to claim 1, 2 or 3, characterized in that: The roughness accuracy of the limiting surface (12) of the code plate body (1) is ≥12.

5.

6. The positioning code plate for assembling the saddle head and saddle body according to claim 1 or 2, characterized in that: In the height direction (Y), the height dimension of the mating surface (11) of the code plate body (1) is greater than the height dimension of the limiting surface (12), and is at least twice the height dimension of the limiting surface (12); The thickness of the code plate body (1) in the longitudinal (Z) direction of the cable saddle is at least 20 mm.

7. An assembly method for assembling a saddle head and a saddle body, comprising an independently formed saddle head and separately formed plates that make up the saddle body; The bottom center of the saddle head has a downward-protruding saddle head side longitudinal rib that is formed along the longitudinal direction of the saddle. Each plate of the saddle body includes at least a bottom plate, saddle body side longitudinal ribs, and multiple transverse rib plates; Its features are: The cable saddle assembly method is based on the positioning code plate structure described in any one of claims 1 to 6; The cable saddle assembly method specifically includes the following process steps: S1. According to the design requirements of grinding and tightening fit, the bottom surface of the longitudinal rib on the saddle head side and the top surface of the longitudinal rib on the saddle body side are ground. Prepare multiple positioning code plates of the same specifications, and divide them into multiple groups of two plates each; S2. Weld the bottom surface of the saddle side longitudinal rib to the top surface of the base plate, so that the saddle side longitudinal rib and the base plate are fitted with an inverted T-shaped structure. S3. Arrange multiple sets of positioning code plates along the length of the saddle side longitudinal rib, so that each set of positioning code plates is placed on both sides of the saddle side longitudinal rib, and the mating surface of each positioning code plate is fixed to the corresponding side of the saddle side longitudinal rib by welding. At this time, the lateral clearance edge of the positioning code plate is lower than the top surface of the saddle side longitudinal rib, and the lowest point of the limiting surface is higher than the top surface of the saddle side longitudinal rib. Until the same set of positioning code plates are fixedly connected on both sides of the longitudinal rib of the saddle body, the same set of positioning code plates will form a sitting limiting space at the top surface of the longitudinal rib of the saddle body that can stop and limit the movement along the two sides of the limiting transverse direction. Until each set of positioning code plates is fixedly connected on both sides of the longitudinal rib of the saddle body; S4. Lift the saddle head to the top of the saddle body and align the center of the thickness of the longitudinal ribs on the side of the saddle head with the center of the thickness of the longitudinal ribs on the side of the saddle body. Slowly lower the saddle head above the saddle body, so that the side longitudinal ribs of the saddle head slowly fall within the seating limit space surrounded by each set of positioning plates. Until the bottom surface of the longitudinal rib on the saddle head sits on the top surface of the longitudinal rib on the saddle body, the two are required to form a polished and tight fit. The saddle head, which sits on the top surface of the longitudinal rib on the side of the saddle body, is stopped and limited by each set of positioning plates on both sides of the longitudinal rib on the side of the saddle head. S5. According to the design requirements of polishing and tightening fit, check the joint gap between the bottom surface of the longitudinal rib of the saddle head side and the top surface of the longitudinal rib of the saddle body side; If the gap meets the standard, proceed to step S6; If the joint gap does not meet the standard, mark the high point area at the joint gap, lift the saddle head from the top surface of the saddle body side longitudinal rib, and re-grind the bottom surface of the saddle head side longitudinal rib and the top surface of the saddle body side longitudinal rib. After the grinding is completed, repeat S4 and S5. S6. Based on the design structure of the cable saddle, the multiple transverse ribs that make up the saddle body are divided into multiple groups of two pieces each; Multiple sets of transverse ribs are arranged at intervals along the length of the saddle side longitudinal ribs, so that each set of transverse ribs is placed on both sides of the saddle side longitudinal ribs, and the inner side of each transverse rib is fixed to the corresponding side of the saddle side longitudinal rib by welding. At this time, the upper part of the transverse rib extends upward at the top surface of the saddle side longitudinal rib. Until the same set of transverse ribs are fixedly connected on both sides of the saddle body side longitudinal rib, the upper part of the same set of transverse ribs forms a U-shaped groove space at the top surface of the saddle body side longitudinal rib that can accommodate the saddle head, and accommodates the saddle head that is already located on the top surface of the saddle body side longitudinal rib from both sides. S7. Weld the upper inner side of the same set of transverse ribs to the corresponding side of the saddle head; Until each set of transverse ribs is fixedly connected on both sides of the saddle head; S8. The bottom edges of the same set of transverse ribs are fixedly connected to the base plate by welding; Continue until all groups of transverse ribs are fixedly connected to the top surface of the base plate; S9. Remove each positioning plate from both sides of the longitudinal rib of the saddle body; S10. Apply sealant to the edge of the joint between the polished and tightened longitudinal ribs of the saddle body and the saddle head to achieve corrosion protection at the polished and tightened joint.

8. The cable saddle assembly method according to claim 7, wherein the saddle head and saddle body are assembled, characterized in that: The welding sequence of each group of transverse ribs along the length of the saddle body side longitudinal ribs / saddle head is either an alternating process from the middle position to both ends or a symmetrical process. The two transverse ribs of the same group are welded synchronously on both sides of the saddle body side longitudinal rib / saddle head with the same welding parameters and welding speed.

9. The cable saddle assembly method according to claim 8, wherein the saddle head and saddle body are assembled, characterized in that: When the inner side of the transverse rib plate is joined to the corresponding side of the longitudinal rib of the saddle body, the welding process is performed symmetrically upward and downward, starting from the middle position; or, when the inner side of the transverse rib plate is joined to the corresponding side of the longitudinal rib of the saddle body, the welding process is performed sequentially upward / downward and then downward / upward, starting from the middle position. When the upper inner side of the transverse rib plate is joined to the corresponding side of the saddle head, welding is performed sequentially from bottom to top. When the bottom edge of the transverse rib plate is joined to the top surface of the base plate, welding is performed sequentially from the inside out.

10. The cable saddle assembly method for assembling the saddle head and saddle body according to claim 7, characterized in that: The thickness of the top surface of the longitudinal rib on the side of the saddle body is ≥140mm; The thickness of the bottom surface of the longitudinal rib on the saddle head side is ≥160mm; In S4, when the saddle head side longitudinal rib sits in place on the top surface of the saddle body side longitudinal rib, the bottom surface of the saddle head side longitudinal rib extends beyond the top surface of the saddle body side longitudinal rib in the limiting lateral direction, and the assembly gap between the limiting surface of the positioning plate and the corresponding side of the saddle head side longitudinal rib allows a feeler gauge of 0.1mm to pass through. In S4, the grinding and tightening fit between the bottom surface of the saddle head side longitudinal rib and the top surface of the saddle body side longitudinal rib is as follows: the surface roughness accuracy is not less than 6.3, the grinding and tightening area is such that a 0.1mm feeler gauge does not pass through the entire length, the sum of the non-penetrating areas under the 0.1mm feeler gauge inspection is ≥90%, and the maximum edge gap is ≤0.3mm.

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