Torque anti-fracture protection structure for rail transit coupling bush
By installing reinforcing components and protective sleeves on the outside of the bushing body of the rail transit coupling, the problem of bushing deformation or breakage during transmission is solved, the structural strength and performance are improved, and dustproof and heat dissipation protection is provided.
Patent Information
- Application Number
- CN202520962656.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-16
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-05-16
AI Technical Summary
The bushings of rail transit couplings are easily deformed or broken by torque during transmission, and the lack of an effective support structure leads to poor performance.
A reinforcing assembly, including a limiting ring, a support ring, and a support rod, is installed on the outside of the coupling bushing body. It is fixedly connected to the transmission seat through a connecting seat to enhance the structural strength. A protective sleeve is then fitted on the outside to provide dustproof and heat dissipation protection.
It improves the structural strength between the coupling bushing body and the transmission seat, prevents deformation and breakage, enhances the performance, and provides dustproof and heat dissipation functions.
Smart Images

Figure CN223938500U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of railway transportation coupling bushing technology, and more specifically, to a torque-preventing protection structure for railway transportation coupling bushings. Background Technology
[0002] Coupling bushings are accessories used on the outside of mechanical parts to provide sealing and wear protection; they are annular sleeves that function as washers.
[0003] A search revealed a bushing-type universal joint coupling with publication number CN218494057U, comprising a first fork and a second fork with identical structures. The first fork includes a mounting base with symmetrically arranged plate-shaped lugs on both sides of one end face. Each lug has a hole in it, and a hollow bushing is fitted inside. The first and second forks are positioned opposite each other, with the lugs of the first and second forks interlocking to form a connecting cavity. A limiting block is fitted inside the connecting cavity. The coupling also includes a cross shaft assembly, the middle of which engages with the limiting block, and the end of the cross shaft assembly engages with the middle of the bushing. One end of the bushing, located on the connecting cavity side, engages with the outer surface of the limiting block. The bushing is wear-resistant and self-lubricating. This design achieves stable transmission, extends the coupling's service life, improves the operating environment, facilitates regular maintenance, and saves on equipment maintenance costs.
[0004] When installing railway coupling bushings, if there is no auxiliary support structure between the bushing and the transmission seat, the bushing is prone to deformation or even breakage under torque during transmission, affecting the performance. Therefore, we propose a torque-preventing protection structure for railway coupling bushings to solve the above problems. Utility Model Content
[0005] 1. Technical problems to be solved
[0006] To address the problems existing in the prior art, the purpose of this utility model is to provide a torque-resistant protection structure for railway coupling bushings. A reinforcing component is installed on the outside of the coupling bushing body. A support rod is fixedly connected to the surface of the support ring. The end of the support rod is fixedly connected to a connecting seat via a base. The end of the connecting seat extends into the assembly groove, and the connecting seat and the assembly seat are fixedly connected. The coupling bushing body is fixedly connected to the transmission seat via the reinforcing component, improving the torsional resistance of the coupling bushing body. Therefore, during use, this effectively improves the structural strength between the coupling bushing body and the transmission seat, making it less prone to deformation and breakage, thus improving the performance.
[0007] 2. Technical Solution
[0008] To solve the above problems, the present invention adopts the following technical solution.
[0009] A torque-resistant protection structure for a railway coupling bushing includes a coupling bushing body and a transmission seat connected to the end of the coupling bushing body. A reinforcing component is installed on the outside of the coupling bushing body.
[0010] The reinforcement assembly includes a limiting ring and a support ring sleeved on the outside of the coupling bushing body, a support rod circumferentially and equidistantly mounted on the surface of the support ring, a base fixedly connected to the end of the support rod, and a connecting seat fixedly connected to the surface of the base.
[0011] Preferably, an assembly base is fixedly connected to the surface of the transmission base, and an assembly groove is formed on the surface of the assembly base.
[0012] Preferably, the end of the connecting seat extends into the assembly groove, and the connecting seat and the assembly seat are fixedly connected.
[0013] Preferably, the limiting ring is located on one side of the support ring, and both the limiting ring and the support ring are fixedly connected to the coupling bushing body.
[0014] Preferably, a protective sleeve is fitted on the outer part of the coupling bushing body, and an assembly ring A is fixedly connected to one end of the protective sleeve.
[0015] Preferably, the protective sleeve is located on the outside of the support rod, and the assembly ring A and the support ring are fixedly connected.
[0016] Preferably, an assembly ring B is fixedly connected to the bottom end of the protective sleeve, and heat dissipation holes are opened on the surface of the protective sleeve, with a dustproof mesh plate installed on the outside of the heat dissipation holes.
[0017] 3. Beneficial effects
[0018] Compared with existing technologies, the advantages of this utility model are:
[0019] (1) The coupling bushing body of this solution is equipped with a reinforcing component on the outside. A support rod is fixedly connected to the surface of the support ring. The end of the support rod is fixedly connected to a connecting seat through the base. The end of the connecting seat extends into the assembly groove and the connecting seat and the assembly seat are fixedly connected. The coupling bushing body is fixedly connected to the transmission seat through the reinforcing component, which improves the torsional resistance of the coupling bushing body. In use, it effectively improves the structural strength between the coupling bushing body and the transmission seat, making it less prone to deformation and breakage, and improving the performance.
[0020] (2) The outer part of the coupling bushing body of this scheme is fitted with a protective sleeve. One end of the protective sleeve is fixedly connected to an assembly ring A, and the bottom end of the protective sleeve is fixedly connected to an assembly ring B. The protective sleeve isolates and protects the outer area of the support rod of the reinforcement component, and has a good dustproof and anti-accidental collision protection effect. The surface of the protective sleeve is provided with heat dissipation holes, and a dustproof mesh plate is installed on the outside of the heat dissipation holes to assist heat dissipation and reduce heat accumulation. Attached Figure Description
[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0022] Figure 2 This is a schematic diagram of the coupling bushing body and transmission seat structure of this utility model;
[0023] Figure 3 This is a schematic diagram of the protective sleeve structure of this utility model;
[0024] Figure 4 This is a schematic diagram of the support rod and mounting base structure of this utility model.
[0025] Explanation of the labels in the diagram:
[0026] 1. Coupling bushing body; 2. Transmission seat; 3. Protective sleeve; 4. Limiting ring; 5. Support ring; 6. Support rod; 7. Base; 8. Assembly seat; 9. Assembly groove; 10. Connecting seat; 11. Dustproof mesh plate; 12. Heat dissipation hole; 13. Assembly ring A; 14. Assembly ring B. Detailed Implementation
[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0028] Example 1:
[0029] Please see Figure 1-4 A torque-resistant protection structure for a railway coupling bushing includes a coupling bushing body 1 and a transmission seat 2 that is connected to the end of the coupling bushing body 1. A reinforcing component is installed on the outside of the coupling bushing body 1.
[0030] The reinforcing assembly includes a limiting ring 4 and a support ring 5 sleeved on the outside of the coupling bushing body 1, a support rod 6 circumferentially and equidistantly mounted on the surface of the support ring 5, a base 7 fixedly connected to the end of the support rod 6, and a connecting seat 10 fixedly connected to the surface of the base 7.
[0031] A mounting base 8 is fixedly connected to the surface of the transmission base 2. A mounting groove 9 is opened on the surface of the mounting base 8. The end of the connecting base 10 extends into the mounting groove 9, and the connecting base 10 and the mounting base 8 are fixedly connected. The limiting ring 4 is located on one side of the support ring 5, and both the limiting ring 4 and the support ring 5 are fixedly connected to the coupling bushing body 1.
[0032] It should be noted that a reinforcing component is installed on the outside of the coupling bushing body 1. A support rod 6 is fixedly connected to the surface of the support ring 5. The end of the support rod 6 is fixedly connected to the connecting seat 10 through the base 7. The end of the connecting seat 10 extends into the assembly groove 9, and the connecting seat 10 and the assembly seat 8 are fixedly connected. The coupling bushing body 1 is fixedly connected to the transmission seat 2 through the reinforcing component, which improves the torsional resistance of the coupling bushing body 1. In use, this effectively improves the structural strength between the coupling bushing body 1 and the transmission seat 2, making it less prone to deformation and breakage, and improving the performance.
[0033] See Figure 1-4 A protective sleeve 3 is fitted on the outer side of the coupling bushing body 1. An assembly ring A13 is fixedly connected to one end of the protective sleeve 3. The protective sleeve 3 is located on the outer side of the support rod 6. The assembly ring A13 and the support ring 5 are fixedly connected. An assembly ring B14 is fixedly connected to the bottom end of the protective sleeve 3. A heat dissipation hole 12 is opened on the surface of the protective sleeve 3. A dustproof mesh plate 11 is installed on the outer side of the heat dissipation hole 12.
[0034] It should be noted that a protective sleeve 3 is fitted on the outer part of the coupling bushing body 1. An assembly ring A13 is fixedly connected to one end of the protective sleeve 3, and an assembly ring B14 is fixedly connected to the bottom end of the protective sleeve 3. The protective sleeve 3 isolates and protects the outer area of the support rod 6 of the reinforcement component, and has a good dustproof and anti-accidental collision protection effect. The surface of the protective sleeve 3 is provided with heat dissipation holes 12, and a dustproof mesh plate 11 is installed on the outside of the heat dissipation holes 12 to assist heat dissipation and reduce heat accumulation.
[0035] In use: A reinforcing component is installed on the outside of the coupling bushing body 1. A support rod 6 is fixedly connected to the surface of the support ring 5. The end of the support rod 6 is fixedly connected to the connecting seat 10 through the base 7. The end of the connecting seat 10 extends into the assembly groove 9, and the connecting seat 10 and the assembly seat 8 are fixedly connected. The coupling bushing body 1 is fixedly connected to the transmission seat 2 through the reinforcing component, which improves the torsional resistance of the coupling bushing body 1. In use, this effectively improves the structural strength between the coupling bushing body 1 and the transmission seat 2, making it less prone to deformation and breakage, and improving the performance. A protective sleeve 3 is fitted on the outside of the coupling bushing body 1. An assembly ring A13 is fixedly connected to one end of the protective sleeve 3, and an assembly ring B14 is fixedly connected to the bottom end of the protective sleeve 3. The protective sleeve 3 isolates and protects the external area of the support rod 6 of the reinforcing component, providing good dustproof and anti-accidental collision protection. Heat dissipation holes 12 are opened on the surface of the protective sleeve 3, and a dustproof mesh plate 11 is installed on the outside of the heat dissipation holes 12 to assist heat dissipation and reduce heat accumulation.
[0036] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.
Claims
1. A torque-resistant protection structure for a railway coupling bushing, comprising a coupling bushing body (1) and a transmission seat (2) connected to the end of the coupling bushing body (1), characterized in that: The coupling bushing body (1) is externally equipped with a reinforcing component; The reinforcing assembly includes a limiting ring (4) and a support ring (5) sleeved on the outside of the coupling bushing body (1), a support rod (6) circumferentially and equidistantly mounted on the surface of the support ring (5), a base (7) fixedly connected to the end of the support rod (6), and a connecting seat (10) fixedly connected to the surface of the base (7).
2. The torque-resistant fracture protection structure for a rail transit coupling bushing according to claim 1, characterized in that: The surface of the transmission seat (2) is fixedly connected to the assembly seat (8), and the surface of the assembly seat (8) is provided with an assembly groove (9).
3. The torque-resistant fracture protection structure for a rail transit coupling bushing according to claim 1, characterized in that: The end of the connecting seat (10) extends into the assembly groove (9), and the connecting seat (10) and the assembly seat (8) are fixedly connected.
4. The torque-resistant fracture protection structure for a rail transit coupling bushing according to claim 1, characterized in that: The limiting ring (4) is located on one side of the support ring (5), and both the limiting ring (4) and the support ring (5) are fixedly connected to the coupling bushing body (1).
5. The torque-resistant fracture protection structure for a rail transit coupling bushing according to claim 1, characterized in that: A protective sleeve (3) is fitted on the outer part of the coupling bushing body (1), and an assembly ring A (13) is fixedly connected to one end of the protective sleeve (3).
6. The torque-resistant fracture protection structure for a rail transit coupling bushing according to claim 5, characterized in that: The protective sleeve (3) is located on the outside of the support rod (6), and the assembly ring A (13) and the support ring (5) are fixedly connected.
7. The torque-resistant fracture protection structure for a rail transit coupling bushing according to claim 6, characterized in that: The bottom end of the protective sleeve (3) is fixedly connected to an assembly ring B (14), and the surface of the protective sleeve (3) is provided with heat dissipation holes (12), and a dustproof mesh plate (11) is installed on the outside of the heat dissipation holes (12).
Citation Information
Patent Citations
Universal joint coupling with bushing
CN218494057U