Self-adaptive tractor clamp for main cable strand production
By using adaptive traction machine fixtures in the production of main cable strands of suspension bridges, the adaptive adjustment of the fixture and the center line of the cable strands is achieved using T-shaped slide chutes and slide block structures, the problems of wire misalignment and plating damage caused by rigid contact of fixtures are solved, ensuring that Correct forming and material protection of the rope strands.
Patent Information
- Application Number
- CN202421080077.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-17
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-05-17
AI Technical Summary
In the production process of main cable strands of suspension bridges, the rigid contact between the clamp and the cable strand in the prior art may lead to wire misalignment and plating damage, and the fixture and the midline of the cable strand do not overlap.
Design an adaptive traction machine fixture, which uses skeleton welding to the bottom plate and adds a polyurethane surface layer, combines the T-shaped slide groove and slider structure, and realizes adaptive adjustment of the fixture through bolt connection, so that it can be connected with the cable strand during the traction process. The midline remains consistent.
It effectively avoids rigid contact and extrusion between the fixture and the cable strand, prevents wire misalignment and plating damage, and ensures the correct forming of the cable strand and material protection.
Smart Images
Figure CN222242433U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of main cable strand production of suspension bridges, and in particular relates to an adaptive traction machine clamp for main cable strand production. Background Art
[0002] The main cable of the suspension bridge has a soft curve and a strong geometric composition of the beam tower. Its elegant shape is known as the "Queen of Bridges". The suspension bridge has the characteristics of strong spanning capacity and long main cable strands. At present, the main cable strands are basically produced by the PPWS method, that is, the steel wire is laid, gathered, pulled and formed in the factory, and the cable strands are pulled and formed by a traction machine, and the cable is wound into a coil at the same time.
[0003] When the cable strand is manufactured, its cross section is formed into a regular hexagon according to the number of steel wires required by the design. High-strength polyester fiber tape is wound every 1.5m to 2.0m along the length of the cable strand. The steel wires in the cable strand should remain parallel and should not cross or twist. Therefore, multiple sets of two-petal hexagonal clamps are installed on the tractor track, staggered and meshed up and down, and the cable strand is constrained and fixed in the middle of the clamp, and the cable strand is driven forward by the rotation of the track. The cable strand is formed by the aggregation of multiple steel wires and has the characteristics of a flexible component in the length direction. The conventional clamp is fixed in position after assembly. When the clamp is meshed up and down, it may not coincide with the center line of the cable strand. In the deviated state, the rigid extrusion of the clamp and the cable strand may cause damage to the steel wire coating, or misalignment of the cable strand wire. Summary of the invention
[0004] The utility model provides an adaptive traction machine clamp for main cable strand production, which aims to solve the existing technical problems, effectively slow down the rigid contact and extrusion between the clamp and the cable strand in a deviated state, and avoid the occurrence of problems such as cable strand wire dislocation and coating damage.
[0005] The technical solution adopted by the utility model to solve its technical problems is:
[0006] An adaptive traction machine fixture for main cable strand production, characterized in that:
[0007] The frame is welded on the bottom plate, and a polyurethane surface layer is poured outside the frame; the T-shaped slide trough body and the traction machine chain track are connected and fixed by bolts; there is a T-shaped slide trough in the T-shaped slide trough body, and the T-shaped slide trough is a two-step groove that is narrow at the top and wide at the bottom; the T-shaped slider is a two-step strip body that is narrow at the top and wide at the bottom, and the T-shaped slider and the T-shaped slide trough are clearance-matched so that the T-shaped slider can be slidably located in the T-shaped slide trough, the upper part of the T-shaped slider is located at the upper part of the T-shaped slide trough, and the lower part of the T-shaped slider is located at the lower part of the T-shaped slide trough, and the lateral width of the T-shaped slider is smaller than the lateral width of the T-shaped slide trough; the T-shaped slider is fixedly connected to the bottom plate.
[0008] The bolts pass through the through holes of the T-shaped slider and are screwed into the screw holes provided on the bottom surface of the bottom plate, so that the T-shaped slider and the bottom plate are connected by the bolts.
[0009] The top surface of the T-shaped sliding block is flush with the top surface of the T-shaped sliding groove body. Beneficial Effects
[0010] The main cable strand production traction machine adopts an adaptive clamp. When the two-petal hexagonal clamp is engaged up and down, it adaptively adjusts the relative position according to the position of the cable strand, so that the center line of the clamp and the center line of the cable strand are consistent. This can effectively reduce the rigid contact and extrusion between the clamp and the cable strand in the deviated state, and avoid the occurrence of problems such as cable strand steel wire misalignment and coating damage. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] The utility model is further described below in conjunction with the accompanying drawings and embodiments.
[0012] Figure 1 The schematic diagram of the position of the fixture on the track;
[0013] Figure 2 is a schematic diagram of the transverse section of the fixture;
[0014] Figure 3 It is a schematic diagram of the longitudinal section of the fixture. DETAILED DESCRIPTION
[0015] In order to more clearly illustrate the technical solution of the utility model, the drawings required for use in the description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other embodiments can be obtained based on these drawings without paying creative work.
[0016] like Figure 1 , Figure 2 , Figure 3 As shown:
[0017] The main cable strand production adaptive traction machine fixture 8 is composed of a polyurethane surface layer 1, a frame 2, a bottom plate 3, a T-shaped slide groove 4, a T-shaped slider 5, and a bolt 6. The main cable strand production adaptive traction machine fixture 8 and the traction machine chain track 7 are fixed by bolt connection.
[0018] The frame 2 and the bottom plate 3 are welded components. The frame 2 is welded to the bottom plate 3, and then polyurethane 1 is poured outside the frame 2 through a mold to form half of the hexagon.
[0019] The T-shaped slide chute body 4 and the chain track 7 are fixed by bolt connection.
[0020] The T-shaped chute body 4 has a T-shaped chute 41 therein, and the T-shaped chute 41 is a two-step groove that is narrow at the top and wide at the bottom.
[0021] The T-shaped slider 5 is a two-stage strip body that is narrow at the top and wide at the bottom. The T-shaped slider 5 is clearance-matched with the T-shaped slide groove 41 so that the T-shaped slider 5 is slidably located in the T-shaped slide groove 41. The upper part of the T-shaped slider 5 is located at the upper part of the T-shaped slide groove 41, and the lower part of the T-shaped slider 5 is located at the lower part of the T-shaped slide groove 41.
[0022] The bolt 6 passes through the through hole of the T-shaped slider 5 and is screwed into the screw hole opened on the bottom surface of the bottom plate 3, so that the T-shaped slider 5 and the bottom plate 3 are connected by the bolt 6, and the top surface 50 of the T-shaped slider 5 is flush with the top surface 40 of the T-shaped slide trough body 4.
[0023] The lateral width of the T-shaped slider 5 is smaller than the lateral width of the T-shaped slot 41 . There is a space A on the left side of the T-shaped slider 5 and the T-shaped slot 41 , and there is a space B on the right side.
[0024] The salient features of the main cable strand production adaptive traction machine fixture 8 in this embodiment are:
[0025] The T-shaped slider 5 and the T-shaped slot 41 are clearance-matched, with reserved space on the left and right sides, so the T-shaped slider 5 can move left and right on the left and right sides, but has no reserved space on the left and right sides, so it cannot move. When the two-petal hexagonal main cable strand production adaptive traction machine clamp 8 is engaged up and down, the relative position is adaptively adjusted according to the position of the cable strand after being subjected to force, and the T-shaped slider 5 can move left and right on the T-shaped slot 41 on the left and right sides to keep the center line of the clamp consistent with the center line of the cable strand.
[0026] The top surface 50 of the T-shaped slider 5 is flush with the top surface 40 of the T-shaped slide trough body 4. After the two-petal hexagonal main cable strand production adaptive traction machine clamp 8 is engaged up and down, the pressure is transmitted from the bottom plate 3 to the top surface 40 of the T-shaped slide trough body 4, ensuring that the two-petal hexagonal main cable strand production adaptive traction machine clamp 8 is tightly engaged up and down.
[0027] The bottom plate 3 and the T-shaped slider 5 are connected by bolts 6. When producing cables of different specifications, the upper components (polyurethane surface layer 1, frame 2, bottom plate 3) of the main cable strand production adaptive traction machine fixture 8 can be replaced, and the adaptive adjustment components can be repeatedly used.
Claims
1. An adaptive traction machine fixture for main cable strand production, characterized in that : The frame is welded on the bottom plate, and a polyurethane surface layer is poured outside the frame; the T-shaped slide trough body and the traction machine chain track are connected and fixed with bolts; there is a T-shaped slide trough in the T-shaped slide trough body, and the T-shaped slide trough is a two-step groove that is narrow at the top and wide at the bottom; the T-shaped slider is a two-step strip body that is narrow at the top and wide at the bottom, and the T-shaped slider and the T-shaped slide trough are clearance-matched so that the T-shaped slider can be slidably located in the T-shaped slide trough, the upper part of the T-shaped slider is located at the upper part of the T-shaped slide trough, and the lower part of the T-shaped slider is located at the lower part of the T-shaped slide trough, and the lateral width of the T-shaped slider is smaller than the lateral width of the T-shaped slide trough; the T-shaped slider is fixedly connected to the bottom plate.
2. An adaptive traction machine fixture for main cable strand production as claimed in claim 1, characterized in that The bolts pass through the through holes of the T-shaped slider and are screwed into the screw holes provided on the bottom surface of the bottom plate, so that the T-shaped slider and the bottom plate are connected by the bolts.
3. An adaptive traction machine fixture for main cable strand production as claimed in claim 1, characterized in that : The top surface of the T-shaped slider is flush with the top surface of the T-shaped slide trough body.