Cylindrical surface steel support for splay cable saddle

Abstract

The utility model discloses a cylindrical surface steel support for a splay cable saddle. The cylindrical surface steel support comprises an upper seat plate connected to the bottom of a splay cable saddle body and a lower seat plate connected to a buttress. A cylindrical surface guide plate is arranged at the top of the lower seat plate; a guide cylindrical surface of the cylindrical surface guide plate is formed by a top side arched structure; the bottom of the upper seat plate is provided with an inner concave arc groove matched with the cylindrical surface guide plate, and a sliding lining plate capable of being in cylindrical surface sliding fit with the guide cylindrical surface is connected into the inner concave arc groove through a detachable structure. At least one side of the transverse bottom of the upper seat plate is connected with an upper crosspiece through a detachable structure, the bottom edge of the upper crosspiece extends downwards to the corresponding outer side of the cylindrical surface guide plate, the upper crosspiece and the cylindrical surface guide plate are staggered at the upper position and the lower position, the movable clearance matching relation is formed at the left position and the right position, and the upper crosspiece and the top side of the lower seat plate are in interval matching relation. According to the utility model, the technical requirement of cylindrical surface sliding friction of splay saddle swinging is met, and meanwhile, the abraded and aged sliding lining plate can be conveniently replaced midway.

Description

Technical Field

[0001] The utility model relates to a loose cable saddle of a suspension bridge, in particular to a cylindrical steel support for the loose cable saddle. Background Art

[0002] In the suspension bridge structure, the cable saddle is an important supporting component used to support, turn and diverge the main cable. In order to adapt to the dynamic and static load changes of the supported main cable, the saddle body of the cable saddle needs to swing along the extension direction of the main cable on the support. Therefore, the common cable saddles have two structural forms: swing shaft type cable saddle and cylindrical support type cable saddle.

[0003] The cylindrical support type loose cable saddle, as disclosed in the Chinese patent literature, is named "A loose cable saddle structure for bridges", with publication number CN 201738239 U, and publication date February 9, 2011, and is named "Intelligent monitoring bridge loose cable saddle support", with publication number CN 110714403 A, and publication date January 21, 2020. As shown in the technology, it has a cylindrical steel support arranged between the loose cable saddle body and the pier. The cylindrical steel support has an upper seat plate connected to the bottom of the loose cable saddle body, and a lower seat plate connected to the pier. The top of the lower seat plate has a cylindrical guide plate. The guide cylindrical surface of the cylindrical guide plate is longitudinally formed with a top side arch structure corresponding to the loose cable saddle groove. The bottom of the upper seat plate has an inner concave arc groove matching the cylindrical guide plate. A polymer material slide plate (such as a polytetrafluoroethylene plate, etc.) that can form a cylindrical sliding fit with the guide cylindrical surface of the cylindrical guide plate is formed in the inner concave arc groove of the upper seat plate. In order to ensure the stability of the cylindrical sliding fit, the aforementioned cylindrical steel support has two sets of upper cross bars protrudingly formed on both sides of the bottom horizontal width of the upper seat plate in an integrated molding structure. The bottom edges of the two sets of upper cross bars extend downward to the corresponding outer sides of the cylindrical guide plate, forming a staggered fit with the cylindrical guide plate in the upper and lower positions and a movable gap in the left and right positions, and forming a spacing fit with the top side of the lower seat plate.

[0004] The cylindrical steel support structure used for the above-mentioned loose cable saddle is limited by the molding structure of the upper seat plate, so that the polymer material slide plate in the concave arc groove at the bottom of the upper seat plate cannot be replaced. However, since the polymer material slide plate is molded with polymer materials, it will inevitably have technical problems such as wear and aging as time goes by and the impact of force loads during service, which directly affects the stability and reliability of the loose cable saddle body swinging along the extension direction of the main cable on the pier, posing a safety hazard.

[0005] In order to make the cylindrical steel support for the loose cable saddle reach full service life, the industry has considered removing the polymer material slide plate at the cylindrical sliding part, that is, the bottom of the upper seat plate directly forms a steel-to-steel cylindrical sliding fit with the guide cylindrical surface of the cylindrical guide plate through the concave arc groove. However, the sliding friction of the steel-to-steel cylindrical surface, in order to make the sliding friction coefficient meet the technical requirements of the swing of the loose cable saddle, is bound to put forward ultra-high technical requirements for the machining accuracy of the guide cylindrical surface of the cylindrical guide plate and the concave arc groove at the bottom of the upper seat plate. Even so, it is difficult to guarantee and the feasibility is poor.

[0006] Therefore, the current cylindrical steel support technology used in loose-cable saddles, which contains polymer material slide plates, cannot replace the worn and aged polymer material slide plates midway, which is not conducive to ensuring the stable and reliable long-term service of cylindrical support-type loose-cable saddles. Utility Model Content

[0007] The technical purpose of the utility model is to provide a cylindrical steel support for the loose-cable saddle, which not only meets the technical requirements of cylindrical sliding friction of the swinging loose-cable saddle, but also facilitates the mid-term replacement of the polymer material slide plate that has been worn and aged, in view of the particularity of the above-mentioned cylindrical support type loose-cable saddle and the shortcomings of the existing technology.

[0008] The technical purpose of the utility model is achieved through the following technical scheme: a cylindrical steel support for a loose cable saddle, comprising an upper seat plate connected to the bottom of the loose cable saddle body, and a lower seat plate connected to the pier;

[0009] The top of the lower seat plate is provided with a cylindrical guide plate, and the guide cylindrical surface of the cylindrical guide plate is longitudinally formed with a top side arched structure corresponding to the saddle groove of the loose cable;

[0010] The bottom of the upper seat plate has an inner concave arc groove matching the cylindrical guide plate;

[0011] A sliding lining plate capable of forming a cylindrical sliding fit with the guide cylindrical surface of the cylindrical guide plate is connected in a detachable structure in the inner concave arc groove of the upper seat plate;

[0012] The upper seat plate is connected to an upper cross bar in a detachable structure at least on one side of the bottom of the saddle groove corresponding to the saddle groove in the horizontal direction;

[0013] The bottom edge of the upper cross bar extends downward to the corresponding outer side of the cylindrical guide plate, forming a staggered fit with the cylindrical guide plate in the upper and lower positions and a movable gap in the left and right positions, and forming a spacing fit with the top side of the lower seat plate.

[0014] The above technical measures are aimed at the particularity of the above-mentioned cylindrical support type loose cable saddle. The sliding lining is connected to the concave arc groove at the bottom of the upper seat plate with a detachable structure. At the same time, the upper cross bar of the upper seat plate corresponding to at least one side of the bottom of the lateral side of the loose cable saddle groove is also connected with a detachable structure, so that the sliding lining connected to the upper seat plate through the concave arc groove can meet the cylindrical sliding friction technical requirements of the swing of the loose cable saddle with the cylindrical guide plate, and can form a reliable limit for the cylindrical sliding structure, and is also conducive to the mid-term replacement of the worn and aged sliding lining, which is beneficial to the cylindrical steel support of the loose cable saddle to maintain good cylindrical sliding performance during service.

[0015] As one of the preferred technical solutions, the upper seat plate is used to connect the bottom of the upper cross bar, and an upper limit groove is formed with an upward concave structure, and a plurality of screw holes are arranged at intervals on the upper seat plate in the area where the upper limit groove is located;

[0016] The top edge of the upper cross bar is embedded in the corresponding upper limit groove at the bottom of the upper seat plate, and is fixed by a plurality of upper screws inserted through the screw holes provided in the upper limit groove;

[0017] The depth of the upper cross bar embedded in the corresponding upper limiting groove is less than the matching distance between the bottom edge of the upper cross bar fixed in place and the top side of the lower seat plate.

[0018] The above technical measures enable the upper cross bar to form a detachable connection with the upper seat plate through a dual connection structure of groove stops and screws. On the one hand, it effectively improves the positioning accuracy of the connection and assembly between the upper cross bar and the upper seat plate, and on the other hand, it effectively enhances the connection structure strength of the upper cross bar assembled on the upper seat plate.

[0019] As one of the preferred technical solutions, the upper seat plate is connected to upper crosspieces at both sides of the bottom of the saddle groove in the horizontal direction of the cable saddle by a detachable structure. This technical measure is conducive to enhancing the flexibility of the sliding lining replacement operation.

[0020] As one of the preferred technical solutions, the lower seat plate is connected to the lower cross bar in a detachable structure corresponding to the top of the upper cross bar connected to the upper seat plate in a detachable structure;

[0021] The top edge of the lower cross bar extends upward to the outer side of the corresponding upper cross bar, forming a staggered matching relationship with the corresponding upper cross bar in the upper and lower positions and a movable gap in the left and right positions, and forming a spacing matching relationship with the bottom side of the upper seat plate.

[0022] The above technical measures not only meet the detachable technical requirements (or are conducive to the technical requirements of sliding lining replacement), but also form a detachable lower cross bar on the outer side of the upper cross bar, thereby ensuring the stability of column sliding.

[0023] Furthermore, the lower seat plate is used to connect the top of the lower cross bar, and is formed with a lower limit groove in a downwardly concave structure, and a plurality of screw through holes are provided at intervals on the lower seat plate in the area where the lower limit groove is located;

[0024] The bottom edge of the lower cross bar is embedded in the corresponding lower limit groove on the top of the lower seat plate and fixed by a plurality of lower screws inserted through the screw holes provided in the lower limit groove;

[0025] The depth of the lower cross bar embedded in the corresponding lower limiting groove is less than the matching distance between the top edge of the lower cross bar fixed in place and the bottom side of the upper seat plate.

[0026] The above technical measures enable the lower cross bar to form a detachable connection with the lower seat plate through a dual connection structure of groove stops and screws. On the one hand, it effectively improves the positioning accuracy of the connection and assembly between the lower cross bar and the lower seat plate, and on the other hand, it effectively enhances the connection structure strength of the lower cross bar assembled on the lower seat plate.

[0027] As one of the preferred technical solutions, the sliding lining has a steel substrate layer and an anti-friction sliding plate layer. The anti-friction sliding plate layer is fixed on the bottom side of the steel substrate layer and forms a cylindrical sliding fit with the guide cylindrical surface of the cylindrical guide plate. The steel substrate layer is fixed by multiple lining screws installed on the upper seat plate.

[0028] Furthermore, the anti-friction sliding plate layer of the sliding lining is a structural plate of a polymer material.

[0029] The above technical measures integrate the polymer material slide plate on the steel substrate and use the steel substrate as a carrier, so that the polymer material slide plate can be easily assembled and disassembled on the upper seat plate, and can also be easily pulled outward or pushed in axially (i.e., the axial direction of the cylindrical guide plate) in the finalized state, which is conducive to the easy replacement of the sliding lining while meeting the friction performance.

[0030] As one of the preferred technical solutions, the upper seat plate corresponds to the transverse edge of the saddle groove of the loose cable saddle and extends from the outer side of the upper crosspiece;

[0031] The lower seat plate corresponds to the transverse edge of the saddle groove of the cable saddle and extends from the outer side of the lower crosspiece;

[0032] The upper seat plate and the lower seat plate correspond to the same side edge of the saddle groove in the transverse direction of the loose cable, and form a matching space at the outer side of the cross bar.

[0033] The above technical measures are conducive to the arrangement and force of the jack when replacing the sliding liner, so as to ensure that the jack can push up the upper seat plate on the lower seat plate, loosen the sliding liner and form an axial outward pulling / pushing space for the sliding liner.

[0034] A maintenance method for the cylindrical steel support for the above-mentioned loose cable saddle, the maintenance method comprising the following process:

[0035] S1. Arrange jacks at the space between the upper and lower seat plates corresponding to the lateral edges of the saddle groove of the loose cable saddle and at positions that do not interfere with the lateral removal of the sliding liner;

[0036] Start the jacks on both sides and lift the upper seat plate on the lower seat plate;

[0037] S2. According to the set removal direction, first remove the lower cross bar on the lower seat plate, and then remove the upper cross bar on the upper seat plate, so that there is no obstruction in the set removal direction;

[0038] S3. For the steel base layer of the old sliding lining, connect the traction structure by welding or screwing in the set removal direction;

[0039] Remove the connection structure of the old sliding lining on the upper seat plate;

[0040] S4. Pull out the old sliding lining from the set removal direction;

[0041] Remove the old sliding lining from between the upper and lower seat plates;

[0042] S5. Insert the new sliding liner from the set removal direction;

[0043] S6. Fix the new sliding lining to the upper seat plate;

[0044] S7. In the set removal direction, first reinstall the upper cross bar on the upper seat plate, and then reinstall the lower cross bar on the lower seat plate;

[0045] S8. Unload the jack so that the upper seat plate sits on the cylindrical guide plate of the lower seat plate;

[0046] Remove the jack and complete the replacement maintenance.

[0047] Alternatively, a maintenance method for the above-mentioned cylindrical steel support for loose cable saddles, the maintenance method comprising the following process:

[0048] S1. Arrange jacks at the space between the upper and lower seat plates corresponding to the lateral edges of the saddle groove of the loose cable saddle and at positions that do not interfere with the lateral removal of the sliding liner;

[0049] Start the jacks on both sides and lift the upper seat plate on the lower seat plate;

[0050] S2. First remove the lower cross bars on both sides of the lower seat plate, and then remove the upper cross bars on both sides of the upper seat plate, so that there is no obstruction in the set removal direction;

[0051] S3. For the steel base layer of the old sliding lining, connect the traction structure by welding or screwing in the set removal direction;

[0052] Remove the connection structure of the old sliding lining on the upper seat plate;

[0053] S4. Pull the old sliding lining in the set removal direction;

[0054] At the same time, on the side opposite to the set removal direction, a thrust force is applied to the steel base layer of the old sliding lining along the set removal direction;

[0055] Remove the old sliding lining from between the upper and lower seat plates;

[0056] S5. Install the new sliding lining between the upper seat plate and the lower seat plate;

[0057] S6. Fix the new sliding lining to the upper seat plate;

[0058] S7. First, reinstall the upper cross bar on both sides of the upper seat plate, and then reinstall the lower cross bar on both sides of the lower seat plate;

[0059] S8. Unload the jack so that the upper seat plate sits on the cylindrical guide plate of the lower seat plate;

[0060] Remove the jack and complete the replacement maintenance.

[0061] The above-mentioned maintenance method is based on the above-mentioned cylindrical steel support structure. On the basis of the structure of the above-mentioned cylindrical steel support, by jacking up the upper seat plate and removing the cross blocks (upper cross blocks and / or lower cross blocks) in the set removal direction, the replacement obstacles of the axial pulling out and loading of the sliding lining are cleared, so that the sliding lining between the upper seat plate and the cylindrical guide plate can be replaced during the service life of the cable saddle, which is beneficial to ensure the stable, reliable and long-term service of the cylindrical support type cable saddle.

[0062] The beneficial technical effect of the utility model is: the above-mentioned technical measures are aimed at the particularity of the above-mentioned cylindrical support type loose cable saddle, and the sliding lining is connected to the concave arc groove at the bottom of the upper seat plate with a detachable structure, and at least one side of the cross block corresponding to the transverse direction of the loose cable saddle groove is also connected with a detachable structure, so that the sliding lining connected to the upper seat plate through the concave arc groove can meet the cylindrical sliding friction technical requirements of the swing of the loose cable saddle with the cylindrical guide plate, and can form a reliable limit for the cylindrical sliding structure, and is also conducive to the mid-term replacement of the sliding lining that is worn and aged, which is beneficial to the cylindrical steel support of the loose cable saddle to maintain good cylindrical sliding performance during service. BRIEF DESCRIPTION OF THE DRAWINGS

[0063] Figure 1 It is a structural schematic diagram of the utility model corresponding to the transverse direction of the saddle groove of the loose cable saddle.

[0064] Figure 2 It is a structural schematic diagram of the utility model corresponding to the longitudinal direction of the saddle groove of the loose cable saddle.

[0065] Figure 3 This is a structural schematic diagram of the first state under the maintenance method of the utility model.

[0066] Figure 4 This is a structural schematic diagram of the second state under the maintenance method of the utility model.

[0067] Figure 5 It is a structural schematic diagram of the third state under the maintenance method of the utility model.

[0068] Figure 6 It is a structural schematic diagram of the fourth state under the maintenance method of the utility model.

[0069] Figure 7 It is a structural schematic diagram of the fifth state under the maintenance method of the utility model.

[0070] Figure 8 It is a structural schematic diagram of the sixth state under the maintenance method of the utility model.

[0071] Fig. 9 It is a structural schematic diagram of the seventh state under the maintenance method of the utility model.

[0072] Fig.10 It is a structural schematic diagram of the eighth state under the maintenance method of the utility model.

[0073] Fig.11 It is a structural schematic diagram of the ninth state under the maintenance method of the utility model.

[0074] Fig.12 It is a structural schematic diagram of the tenth state under the maintenance method of the utility model.

[0075] Fig.13 This is a structural diagram of the eleventh state under the maintenance method of the utility model.

[0076] The meaning of the codes in the figure are: 1—upper seat plate; 11—upper limit groove; 12—upper cross block; 13—upper screw; 14—liner screw; 15—saddle connecting bolt; 2—lower seat plate; 21—lower limit groove; 22—lower cross block; 23—lower screw; 24—lower longitudinal block; 25—thrust bolt; 26—longitudinal block base; 3—sliding liner; 4—cylindrical guide plate. DETAILED DESCRIPTION

[0077] The utility model relates to a cable saddle for a suspension bridge, specifically a cylindrical steel support for a cable saddle. The main technical solution of the utility model is described in detail below in combination with multiple embodiments. Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 , Fig.12 and Fig.13 The technical solution of the utility model is clearly and in detail explained; although other embodiments are not separately drawn with drawings, their main structures can still refer to the drawings of embodiment 1.

[0078] It should be 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 of the present invention in the prior art. In addition, the expressions "approximately" and "substantially" in the following text regarding quantity or matching relationship mean that reasonable assembly errors and processing errors in the industry are allowed to exist, and do not literally express absolute quantity or matching relationship.

[0079] Example 1

[0080] See also Figure 1 and Figure 2 As shown, the cylindrical steel support for the loose cable saddle of the utility model comprises an upper seat plate 1 connected to the bottom of the loose cable saddle body, a lower seat plate 2 connected to the pier, a cylindrical guide plate 4 arranged on the top of the lower seat plate 2, and a sliding lining plate 3 arranged at the bottom of the upper seat plate 1.

[0081] Specifically, the upper seat plate 1 is connected to the saddle body of the loose cable saddle through a plurality of cable saddle connection bolts 15 connected around the saddle. In order to avoid obstruction to the removal and replacement of the sliding liner 3 described below, the lower ends of these cable saddle connection bolts 15 are respectively installed on the upper seat plate 1 with a countersunk structure. The bottom of the upper seat plate 1 is formed with an inner concave arc groove of an inner concave cylindrical structure corresponding to the longitudinal direction of the loose cable saddle groove (hereinafter referred to as the longitudinal direction).

[0082] The sliding lining 3 has a steel substrate layer and an anti-friction sliding plate layer, and the anti-friction sliding plate layer is a structural plate of a polymer material (such as a polytetrafluoroethylene plate). The anti-friction sliding plate layer is fixed to the bottom side of the steel substrate layer by countersunk screws and / or bonding. The contour structure of the steel substrate layer matches the concave arc groove at the bottom of the upper seat plate 1 mentioned above, and the steel substrate layer is fixed in a detachable structure by a plurality of lining screws 14 installed on the outer periphery of the upper seat plate 1. Each lining screw 14 is inserted from the top side of the upper seat plate 1 and does not extend to the anti-friction sliding plate layer of the sliding lining 3, that is, the installation of each lining screw 14 fixes the sliding lining 3 to the bottom of the upper seat plate 1, and the removal of each lining screw 14 causes the sliding lining 3 to detach from the bottom of the upper seat plate 1.

[0083] The cylindrical guide plate 4 has a flat bottom surface and an arched guide cylindrical surface. The cylindrical guide plate 4 is seated on the top of the lower seat plate 2 with a flat bottom surface, and the guide cylindrical surface of the cylindrical guide plate 4 is longitudinally formed with a top side arched structure, and the guide cylindrical surface of the cylindrical guide plate 4 matches the bottom concave arc surface of the above-mentioned sliding liner 3. In this way, the above-mentioned upper seat plate 1 is seated on the guide cylindrical surface of the cylindrical guide plate 4 through the bottom sliding liner 3, and forms a cylindrical sliding matching relationship with the guide cylindrical surface of the cylindrical guide plate 4 along the longitudinal direction of the saddle groove of the loose cable.

[0084] In order to ensure the stability of the above-mentioned cylindrical sliding fit relationship and to realize the disassembly and replacement of the sliding lining 3 described below, upper cross bars 12 are respectively connected with a detachable structure on both sides of the bottom of the upper seat plate 1 corresponding to the horizontal direction (hereinafter referred to as the horizontal direction) of the saddle groove of the loose cable.

[0085] More specifically, at the bottom of the upper seat plate 1 for connecting the upper cross bar 12, an upper limit groove 11 is formed in an upward concave structure, and a plurality of screw holes are provided at intervals on the upper seat plate 1 in the area where the upper limit groove 11 is located. The top edge of each upper cross bar 12 is embedded in the corresponding upper limit groove 11 at the bottom of the upper seat plate 1, and is fixed by a plurality of upper screws 13 inserted through the screw holes provided in the upper limit groove 11. After each upper cross bar 12 is embedded in the corresponding upper limit groove 11 at the bottom of the upper seat plate 1, the depth of the upper cross bar 12 embedded in the corresponding upper limit groove 11 is less than the matching spacing between the bottom edge and the top side of the lower seat plate 2. In this way, the bottom edge of each upper cross bar 12 extends downward to the corresponding outer side of the cylindrical guide plate 4, forming a matching relationship with the cylindrical guide plate 4 in an interlaced manner in the upper and lower positions and a movable gap in the left and right positions, and forming a spacing matching relationship with the top side of the lower seat plate 2. Of course, in order to improve the anti-friction performance of the sliding fit, a polymer material slide plate can be connected to the end of the cylindrical guide plate 4 and / or the inside of the upper cross piece 12.

[0086] In order to ensure the stability of the above-mentioned cylindrical sliding fit relationship and to realize the disassembly and replacement of the sliding lining 3 described below, a lower cross bar 22 is connected to the lower seat plate 2 at the top of the upper cross bar 12 connected to the upper seat plate 1 with a detachable structure.

[0087] More specifically, at the top of the lower seat plate 2 used for connecting the lower cross bar 22, a lower limit groove 21 is formed in a downward concave structure, and a plurality of screw through holes are provided at intervals on the lower seat plate 2 in the area where the lower limit groove 21 is located. The bottom edge of each lower cross bar 22 is embedded in the corresponding lower limit groove 21 at the top of the lower seat plate 2, and is fixed by a plurality of lower screws 23 inserted through the screw through holes provided in the lower limit groove 21. After each lower cross bar 22 is embedded in the corresponding lower limit groove 21 at the top of the lower seat plate 2, the depth of the lower cross bar 22 embedded in the corresponding lower limit groove 21 is less than the matching spacing between the top edge and the bottom side of the upper seat plate 1. In this way, the top edge of each lower cross bar 22 extends upward to the outer side of the corresponding upper cross bar 12, and forms a matching relationship with the corresponding upper cross bar 12 in an interlaced manner in the upper and lower positions and a movable gap in the left and right positions, and forms a spacing matching relationship with the bottom side of the upper seat plate 1. Of course, in order to improve the friction reduction performance of the sliding fit, a polymer material slide plate may be connected to the outside of the upper cross piece 12 and / or the inside of the lower cross piece 22 .

[0088] The upper seat plate 1 of the above structure corresponds to the transverse edge of the loose cable saddle groove and extends from the outer side of the upper cross bar 12; at the same time, the lower seat plate 2 corresponds to the transverse edge of the loose cable saddle groove and extends from the outer side of the lower cross bar 22. In this way, the upper seat plate 1 and the lower seat plate 2 correspond to the same side edge of the loose cable saddle groove in the transverse direction, and a matching space is formed at the outer side of the cross bar.

[0089] The cylindrical steel support for the above-mentioned loose cable saddle requires the cylindrical guide plate 4 to be gradually pushed longitudinally on the lower seat plate 2 during construction. Therefore, in order to limit the cylindrical guide plate 4 in the longitudinal direction, longitudinal blocking bases 26 are respectively connected at the longitudinal ends of the top of the upper seat plate 2 in a detachable structure.

[0090] More specifically, each longitudinal block base 26 is embedded in a corresponding groove on the top side of the lower seat plate 2 and fixed with a plurality of screws. A plurality of jacking bolts 25 are installed at intervals in the horizontal width direction of each longitudinal block base 26. The plurality of jacking bolts 25 at the same end are connected to the same lower longitudinal block 24. The jacking bolts 25 at the same end are adjusted in thread feed on the corresponding longitudinal block base 26 so that the corresponding lower longitudinal block 24 abuts against the cylindrical guide plate 4 to achieve longitudinal limit fixation.

[0091] See also Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 , Fig.12 and Fig.13 As shown, the maintenance method of the cylindrical steel support for the above-mentioned loose cable saddle includes the following process:

[0092] S1. Arrange the jacks at the upper and lower seat plates 1 and 2 corresponding to the lateral edges of the loose cable saddle groove and at positions that do not interfere with the lateral removal of the sliding liner 3;

[0093] Start the jacks on both sides and lift the upper seat plate 1 on the lower seat plate 2 (as shown in the figure). Figure 3 shown);

[0094] S2. According to the set removal direction, first remove the lower crossbar 22 on the lower seat plate 2 (such as Figure 4 As shown), remove the upper cross bar 12 on the upper seat plate 1 (as shown Figure 5 As shown), there is no obstruction in the set removal direction;

[0095] S3. For the steel base layer of the old sliding liner 3, connect the traction structure (such as Figure 7 shown);

[0096] Remove the connecting structure of the old sliding lining plate 3 on the upper seat plate 1 (such as Figure 6 shown);

[0097] S4. From the set removal direction, pull out the old sliding liner 3;

[0098] Remove the old sliding lining from between the upper seat plate 1 and the lower seat plate 2 (as shown in the figure). Figure 8 shown);

[0099] S5. The new sliding liner 3 is loaded from the set removal direction (eg Fig. 9 shown);

[0100] S6. The new sliding liner 3 is fixedly connected to the upper seat plate 1 (eg Fig.10 shown);

[0101] S7. In the set removal direction, first reinstall the upper cross bar 12 on the seat plate 1 (such as Fig.11 As shown), and then reinstall the lower cross bar 22 on the lower seat plate 2 (as shown Fig.12 shown);

[0102] S8. The jack is unloaded so that the upper seat plate 1 is seated on the cylindrical guide plate 4 of the lower seat plate 2 (eg Fig.13 shown);

[0103] Remove the jack and complete the replacement maintenance.

[0104] Example 2

[0105] The utility model discloses a cylindrical steel support for a loose cable saddle, which comprises an upper seat plate connected to the bottom of the loose cable saddle body, a lower seat plate connected to the pier, a cylindrical guide plate arranged on the top of the lower seat plate, and a sliding lining plate arranged on the bottom of the upper seat plate.

[0106] Specifically, the upper seat plate is connected to the saddle body of the loose cable saddle through a plurality of cable saddle connecting bolts connected around it. To avoid obstruction to the removal and replacement of the sliding liner described below, the lower ends of these cable saddle connecting bolts are respectively installed on the upper seat plate with a countersunk structure. The bottom of the upper seat plate corresponds to the concave arc groove with a concave cylindrical structure formed longitudinally.

[0107] The sliding lining plate has a steel substrate layer and an anti-friction sliding plate layer, and the anti-friction sliding plate layer is a structural plate of a polymer material (such as a polytetrafluoroethylene plate). The anti-friction sliding plate layer is fixed to the bottom side of the steel substrate layer by countersunk screws and / or bonding. The contour structure of the steel substrate layer matches the concave arc groove at the bottom of the upper seat plate. The steel substrate layer is fixed by a plurality of lining plate screws installed on the outer periphery of the upper seat plate in a detachable structure. Each lining plate screw is inserted from the top side of the upper seat plate and does not extend to the anti-friction sliding plate layer of the sliding lining plate, that is, the installation of each lining plate screw fixes the sliding lining plate to the bottom of the upper seat plate, and the removal of each lining plate screw causes the sliding lining plate to detach from the bottom of the upper seat plate.

[0108] The cylindrical guide plate has a flat bottom surface and an arched guide cylindrical surface. The cylindrical guide plate is seated on the top of the lower seat plate with a flat bottom surface, and the guide cylindrical surface of the cylindrical guide plate is longitudinally formed with a top side arched structure, and the guide cylindrical surface of the cylindrical guide plate matches the bottom concave arc surface of the above-mentioned sliding liner. In this way, the above-mentioned upper seat plate is seated on the guide cylindrical surface of the cylindrical guide plate through the bottom sliding liner, and forms a cylindrical sliding matching relationship with the guide cylindrical surface of the cylindrical guide plate along the longitudinal direction of the saddle groove of the cable saddle.

[0109] In order to ensure the stability of the above-mentioned cylindrical sliding fit relationship and to realize the disassembly and replacement of the sliding lining described below, upper cross bars are connected to the bottom sides of the upper seat plate corresponding to the horizontal direction with a detachable structure.

[0110] More specifically, at the bottom of the upper seat plate used for connecting the upper cross bar, an upper limit groove is formed in an upward concave structure, and a plurality of screw holes are provided at intervals on the upper seat plate in the area where the upper limit groove is located. The top edge of each upper cross bar is embedded in the corresponding upper limit groove at the bottom of the upper seat plate, and is fixed by a plurality of upper screws inserted through the screw holes provided in the upper limit groove. After each upper cross bar is embedded in the corresponding upper limit groove at the bottom of the upper seat plate, the depth of the upper cross bar embedded in the corresponding upper limit groove is less than the matching spacing between the bottom edge and the top side of the lower seat plate. In this way, the bottom edge of each upper cross bar extends downward to the corresponding outer side of the cylindrical guide plate, and forms a matching relationship with the cylindrical guide plate in an interlaced manner in the upper and lower positions and a movable gap in the left and right positions, and forms a spacing matching relationship with the top side of the lower seat plate. Of course, in order to improve the friction reduction performance of the sliding fit, a polymer material slide plate can be connected to the end of the cylindrical guide plate and / or the inside of the upper cross bar.

[0111] In order to ensure the stability of the above-mentioned cylindrical sliding fit relationship and to realize the disassembly and replacement of the sliding lining described below, a lower cross bar is connected to the lower seat plate with a detachable structure at the top of the upper cross bar connected to the upper seat plate with a detachable structure.

[0112] More specifically, at the top of the lower seat plate used for connecting the lower cross bar, a lower limit groove is formed with a downward concave structure, and a plurality of screw holes are provided at intervals on the lower seat plate in the area where the lower limit groove is located. The bottom edge of each lower cross bar is embedded in the corresponding lower limit groove at the top of the lower seat plate, and is fixed by a plurality of lower screws inserted through the screw holes provided in the lower limit groove. After each lower cross bar is embedded in the corresponding lower limit groove at the top of the lower seat plate, the depth of the lower cross bar embedded in the corresponding lower limit groove is less than the matching spacing between the top edge and the bottom side of the upper seat plate. In this way, the top edge of each lower cross bar extends upward to the outer side of the corresponding upper cross bar, and forms a matching relationship with the corresponding upper cross bar in the upper and lower positions, and forms a matching relationship with the bottom side of the upper seat plate in a staggered manner and a movable gap in the left and right positions, and forms a spacing matching relationship with the bottom side of the upper seat plate. Of course, in order to improve the friction reduction performance of the sliding fit, a polymer material slide plate can be connected to the outside of the upper cross bar and / or the inside of the lower cross bar.

[0113] The upper seat plate of the above structure corresponds to the transverse edge of the loose cable saddle groove and extends from the outer side of the upper crosspiece; at the same time, the lower seat plate corresponds to the transverse edge of the loose cable saddle groove and extends from the outer side of the lower crosspiece. In this way, the upper seat plate and the lower seat plate correspond to the same side edge of the loose cable saddle groove in the transverse direction, forming a matching space at the outer side of the crosspiece.

[0114] The cylindrical steel support for the above-mentioned loose cable saddle requires the cylindrical guide plate to be gradually pushed longitudinally on the lower seat plate during construction. Therefore, in order to limit the cylindrical guide plate in the longitudinal direction, longitudinal blocking bases are detachably connected to the two longitudinal ends of the top of the upper seat plate.

[0115] More specifically, each longitudinal block base is embedded in a corresponding groove on the top side of the lower seat plate and fixed with multiple screws. Multiple jacking bolts are installed at intervals in the horizontal width direction of each longitudinal block base, and multiple jacking bolts at the same end are connected to the same lower longitudinal block. The thread feed of each jacking bolt at the same end on the corresponding longitudinal block base is adjusted so that the corresponding lower longitudinal block abuts against the cylindrical guide plate to achieve longitudinal limit fixation.

[0116] The maintenance method of the cylindrical steel support for the above-mentioned loose cable saddle includes the following process:

[0117] S1. Arrange jacks at the space between the upper and lower seat plates corresponding to the lateral edges of the saddle groove of the loose cable saddle and at positions that do not interfere with the lateral removal of the sliding liner;

[0118] Start the jacks on both sides and lift the upper seat plate on the lower seat plate;

[0119] S2. First remove the lower cross bars on both sides of the lower seat plate, and then remove the upper cross bars on both sides of the upper seat plate, so that there is no obstruction in the set removal direction;

[0120] S3. For the steel base layer of the old sliding lining, connect the traction structure by welding or screwing in the set removal direction;

[0121] Remove the connection structure of the old sliding lining on the upper seat plate;

[0122] S4. Pull the old sliding lining in the set removal direction;

[0123] At the same time, on the side opposite to the set removal direction, a thrust force is applied to the steel base layer of the old sliding lining along the set removal direction;

[0124] Remove the old sliding lining from between the upper and lower seat plates;

[0125] S5. Install the new sliding lining between the upper seat plate and the lower seat plate;

[0126] S6. Fix the new sliding lining to the upper seat plate;

[0127] S7. First, reinstall the upper cross bar on both sides of the upper seat plate, and then reinstall the lower cross bar on both sides of the lower seat plate;

[0128] S8. Unload the jack so that the upper seat plate sits on the cylindrical guide plate of the lower seat plate;

[0129] Remove the jack and complete the replacement maintenance.

[0130] Example 3

[0131] The other contents of this embodiment are the same as those of Embodiment 1 or 2, except that:

[0132] The upper seat plate is used as a part connected to the upper cross bar and is a flat structure, that is, the upper limiting groove at the bottom of the upper seat plate is removed.

[0133] Example 4

[0134] The other contents of this embodiment are the same as those of Embodiment 1 or 2, except that:

[0135] The lower seat plate is used as a part connected to the lower cross bar and is a flat structure, that is, the lower limiting groove on the top of the lower seat plate is removed.

[0136] The above embodiments are only used to illustrate the present invention, but not to limit it.

[0137] Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify 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 cylindrical steel support for a loose cable saddle, comprising an upper seat plate (1) connected to the bottom of the loose cable saddle body, and a lower seat plate (2) connected to a buttress; The top of the lower seat plate (2) is provided with a cylindrical guide plate (4), and the guide cylindrical surface of the cylindrical guide plate (4) is longitudinally formed with a top-side arched structure corresponding to the saddle groove of the loose cable; The bottom of the upper seat plate (1) has an inner concave arc groove matching the cylindrical guide plate (4); Features: A sliding lining plate (3) capable of forming a cylindrical sliding fit with the guide cylindrical surface of the cylindrical guide plate (4) is connected in a detachable structure in the inner concave arc groove of the upper seat plate (1); The upper seat plate (1) is connected to an upper cross bar (12) in a detachable structure at least on one side of the bottom of the saddle groove in the horizontal direction of the cable saddle; The bottom edge of the upper cross bar (12) extends downward to the corresponding outer side of the cylindrical guide plate (4), forming a staggered fit with the cylindrical guide plate (4) in the upper and lower positions and a movable gap in the left and right positions, and forming a spacing fit with the top side of the lower seat plate (2).

2. According to claim 1, the cylindrical steel support for the loose cable saddle is characterized in that: The upper seat plate (1) is used to connect to the bottom of the upper cross bar (12), and is formed with an upper limit groove (11) in an upwardly concave structure, and a plurality of screw through holes are spaced apart on the upper seat plate (1) in the area where the upper limit groove (11) is located; The top edge of the upper cross bar (12) is embedded in the corresponding upper limiting groove (11) at the bottom of the upper seat plate (1), and is fixed by a plurality of upper screws (13) inserted through screw holes provided in the upper limiting groove (11); The depth of the upper cross bar (12) embedded in the corresponding upper limiting groove (11) is less than the matching distance between the bottom edge of the upper cross bar (12) fixed in place and the top side of the lower seat plate (2).

3. The cylindrical steel support for the loose cable saddle according to claim 1 or 2, characterized in that: The upper seat plate (1) is connected to upper crosspieces (12) at two sides of the bottom of the saddle groove in the horizontal direction corresponding to the loose cable saddle, respectively, in a detachable structure.

4. The cylindrical steel support for the loose cable saddle according to claim 1, characterized in that: The lower seat plate (2) corresponds to the top of the upper cross bar (12) connected to the upper seat plate (1) by a detachable structure, and is connected to the lower cross bar (22) by a detachable structure; The top edge of the lower cross bar (22) extends upward to the outer side of the corresponding upper cross bar (12), forming a staggered fit with the corresponding upper cross bar (12) in the upper and lower positions and a movable gap in the left and right positions, and forming a spacing fit with the bottom side of the upper seat plate (1).

5. The cylindrical steel support for the loose cable saddle according to claim 4, characterized in that: The lower seat plate (2) is used to connect to the top of the lower cross bar (22), and is formed with a lower limiting groove (21) in a downwardly concave structure, and a plurality of screw through holes are spaced apart on the lower seat plate (2) in the area where the lower limiting groove (21) is located; The bottom edge of the lower cross bar (22) is embedded in the corresponding lower limit groove (21) at the top of the lower seat plate (2) and is fixed by a plurality of lower screws (23) inserted through screw holes provided in the lower limit groove (21); The depth of the lower cross bar (22) embedded in the corresponding lower limiting groove (21) is less than the matching distance between the top edge of the fixed lower cross bar (22) and the bottom side of the upper seat plate (1).

6. The cylindrical steel support for the loose cable saddle according to claim 1, characterized in that: The sliding lining (3) comprises a steel substrate layer and an anti-friction sliding plate layer, wherein the anti-friction sliding plate layer is fixed to the bottom side of the steel substrate layer and forms a cylindrical sliding fit with the guide cylindrical surface of the cylindrical guide plate (4), and the steel substrate layer is fixed by a plurality of lining screws (14) installed on the upper seat plate (1).

7. The cylindrical steel support for the cable saddle according to claim 6, characterized in that: The anti-friction sliding plate layer of the sliding lining plate (3) is a structural plate made of a polymer material.

8. The cylindrical steel support for the cable saddle according to claim 1, 2 or 5, characterized in that: The upper seat plate (1) corresponds to the transverse edge of the cable saddle groove and extends from the outer side of the upper cross bar (12); The lower seat plate (2) corresponds to the transverse edge of the cable saddle groove and extends from the outer side of the lower cross bar (22); The upper seat plate (1) and the lower seat plate (2) correspond to the same side edge of the saddle groove in the transverse direction of the loose cable, and form a matching space at the outer side of the cross bar.

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