Crown block track pressing plate damping device
A symmetrical rail stabilization system with tension bolts and springs addresses rail displacement issues, ensuring stable crane operation by applying pre-tension and absorbing shocks.
Patent Information
- Application Number
- CN202422113143.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-29
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-08-29
AI Technical Summary
In the prior art, the break of the rail fixing bolt causes the displacement of the pressure plate and the deformation of the rail, which poses a safety hazard. The embedded bolt on the fish belly beam head cannot be restored after it is broken, which affects the stability and safety of the operation of the van.
The design of transverse top-tightening bolts and longitudinal fixing bolts is combined with the compression spring. The rail is fixed by the preload force of the compression spring, which buffers the impact and vibration of the crane to avoid the displacement of the rail. The H-shaped base is used to fix it with the concrete fish belly beam to ensure the stability of the rail.
Effectively fix the rails, eliminate rail displacement, improve service life, reduce failure rate, ensure smooth operation of the car, and avoid safety hazards caused by bolt breakage.
Smart Images
Figure CN223102541U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a shock absorption device for a crane rail pressing plate, belonging to the technical field of crane operation in the metallurgical industry. Background Art
[0002] A crane girder is a beam structure that supports the operation of a bridge crane. The crane rail is installed on the crane girder, and the crane travels back and forth on the crane girder through the rail.
[0003] A concrete fish-belly beam is a common crane girder. When installing the steel rail, a backing plate is needed for leveling and secondary grouting. In recent years, with the adjustment of the steel product structure, the output has increased, the steel plate tonnage has increased, and the load-bearing force of the crane rail has increased. Faults such as fracture of the rail fixing bolts, fragmentation of the secondary grouting layer, displacement of the backing plate, and displacement and deformation of the rail often occur. Moreover, the beam head of the fish-belly beam is an embedded bolt, which cannot be restored for use after fracture, and the rail cannot be fixed, bringing great potential safety hazards to the operation of the crane. Content of the Utility Model
[0004] The purpose of the utility model is to provide a shock absorption device for a crane rail pressing plate, which can avoid faults such as displacement of the pressing plate and displacement and deformation of the rail caused by fracture of the rail fixing bolts, and solve the problems existing in the background art.
[0005] The technical solution of the utility model is as follows:
[0006] A shock absorption device for a crane rail pressing plate includes a transverse tightening bolt, a pressing plate, a longitudinal fixing bolt, a base, a rail and a concrete fish-belly beam. The base is fixed on the concrete fish-belly beam, the rail is fixed on the base, pressing plates matching with the bottom of the rail are respectively arranged on both sides of the rail. The pressing plate is provided with a transverse tightening bolt and a longitudinal fixing bolt, and compression springs and nuts are arranged on both the transverse tightening bolt and the longitudinal fixing bolt. The whole is symmetrically structured with the rail as the center.
[0007] A transverse tightening bolt support matching with the transverse tightening bolt is arranged on the base. The transverse tightening bolt is threadedly connected to the transverse tightening bolt support, and the end of the transverse tightening bolt abuts against the side of the pressing plate.
[0008] The pressing plate is fixed on the base through the longitudinal fixing bolt, the compression spring and the nut on the longitudinal fixing bolt.
[0009] A counterbore matching with the longitudinal fixing bolt is further arranged on the base.
[0010] The base is an H shape matching with the concrete fish-belly beam, and base fixing bolts matching with the concrete fish-belly beam are respectively arranged on both sides of the base.
[0011] The beneficial effects of the present utility model are as follows: It can avoid faults such as the displacement of the pressing plate and the displacement and deformation of the rail caused by the fracture of the rail fixing bolt, with a simple structure and convenient maintenance. Description of the Drawings
[0012] Figure 1 It is the front view of the present utility model;
[0013] Figure 2 It is the top view of the present utility model;
[0014] Figure 3 It is the schematic diagram of the base of the present utility model;
[0015] In the figure: transverse tightening bolt 1, nut 2, transverse compression spring 3, pressing plate 4, longitudinal compression spring 5, longitudinal fixing bolt 6, base 7, base fixing bolt 8, top plate 9, rail 10, concrete fish-belly beam 11, transverse tightening bolt support 12, counterbore 13, bolt hole 14. Detailed Implementation Manner
[0016] The following further illustrates the present utility model through examples in conjunction with the drawings.
[0017] Refer to the attached Figures 1-3 , a shock-absorbing device for the overhead crane rail pressing plate, comprising a transverse tightening bolt 1, a pressing plate 4, a longitudinal fixing bolt 6, a base 7, a rail 10, and a concrete fish-belly beam 11. The base 7 is fixed on the concrete fish-belly beam 11, the rail 10 is fixed on the base 7, pressing plates 4 matching the bottom of the rail 10 are respectively arranged on both sides of the rail 10, the pressing plate 4 is provided with a transverse tightening bolt 1 and a longitudinal fixing bolt 6, and compression springs and nuts are arranged on both the transverse tightening bolt 1 and the longitudinal fixing bolt 6, and the whole is symmetrically structured with the rail 10 as the center.
[0018] In this embodiment, refer to the attached Figures 1-3 , the shock-absorbing device for the overhead crane rail pressing plate comprises a transverse tightening bolt 1, a nut 2, a transverse compression spring 3, a pressing plate 4, a longitudinal compression spring 5, a longitudinal fixing bolt 6, a base 7, a base fixing bolt 8, a top plate 9, a rail 10, a concrete fish-belly beam 11, a transverse tightening bolt support 12, a counterbore 13, and a bolt hole 14, wherein:
[0019] The transverse tightening bolt 1 is a full-thread hexagon head bolt M24×160 of GB / T5783-2000;
[0020] The nut 2 is a hexagon nut - C grade M24 of GB / T41-2000;
[0021] The transverse compression spring 3 is a cylindrical helical compression spring 8×35×115 of GB / T2089-1994;
[0022] The material of the track press plate 4 is A45;
[0023] The longitudinal compression spring 5 is a cylindrical helical compression spring 8×35×56.46 conforming to GB / T2089-1994;
[0024] The longitudinal fixing bolt 6 is a T-slot bolt M24×120 conforming to GB37-1988;
[0025] The material of the top plate 9 is Q345;
[0026] The base 7 is a welded part, integrally H-shaped, with its thickness being the same as that of the secondary grouting layer to ensure the track elevation. On the base 7, there are provided a lateral tightening bolt support 12 that cooperates with the lateral tightening bolt 1, a counterbore 13 that cooperates with the longitudinal fixing bolt 6, and a bolt hole 14 that cooperates with the base fixing bolt 8, as shown in the appendix Figure 3 shown.
[0027] Referring to the appendix Figure 1 、 2 , by adjusting the nuts on the lateral tightening bolt 1 and the longitudinal fixing bolt 6, the lateral compression spring 3 and the longitudinal compression spring 5 are given a certain pre-tightening force, so that the rail 10 is closely attached to the press plate, which can effectively fix the rail 10, eliminate the displacement of the rail caused by lateral force, and at the same time can buffer the impact and vibration of the crane, thus solving the problem that the embedded bolts are damaged and ineffective and cannot fix the rail, and also solving the problems of the crane gnawing the rail and large gauge error and other problems of the rail displacement and deformation caused by lateral force, improving the service life of the rail, and greatly reducing the failure rate of the rail and the wheels during the operation of the crane, ensuring the smooth operation of the crane.
Claims
1. An overhead crane track pressing plate shock absorption device, characterized in that: It includes a transverse tightening bolt (1), a pressing plate (4), a longitudinal fixing bolt (6), a base (7), a rail (10) and a concrete fish-belly beam (11). The base (7) is fixed on the concrete fish-belly beam (11), the rail (10) is fixed on the base (7), pressing plates (4) that match the bottom of the rail (10) are respectively arranged on both sides of the rail (10). The pressing plate (4) is provided with a transverse tightening bolt (1) and a longitudinal fixing bolt (6), and compression springs and nuts are arranged on both the transverse tightening bolt (1) and the longitudinal fixing bolt (6). The whole is symmetrically structured with the rail (10) as the center.
2. The shock absorption device for the overhead crane track pressing plate according to claim 1, wherein: A transverse tightening bolt support (12) that matches the transverse tightening bolt (1) is arranged on the base (7). The transverse tightening bolt (1) is threadedly connected to the transverse tightening bolt support (12), and the end of the transverse tightening bolt (1) abuts against the side surface of the pressing plate (4).
3. The shock-absorbing device for the overhead crane rail pressing plate according to claim 2, characterized in that: The pressing plate (4) is fixed on the base (7) through the compression spring and nut on the longitudinal fixing bolt (6) and the longitudinal fixing bolt (6).
4. The shock-absorbing device for the overhead crane rail pressing plate according to claim 3, wherein: A counterbore (13) that matches the longitudinal fixing bolt (6) is further arranged on the base (7).
5. The shock absorption device for the overhead crane rail pressing plate according to claim 1, characterized in that: The base (7) is of an H shape that matches the concrete fish-belly beam (11), and base fixing bolts (8) that match the concrete fish-belly beam (11) are respectively arranged on both sides of the base (7).