A polishing device for a metal material of a railway vehicle
By designing a metal polishing device for rail vehicles that includes a base, a placement seat, a polishing mechanism, and a positioning mechanism, the problem of low wheel polishing efficiency was solved, achieving efficient and stable polishing results and improving the surface quality of the wheels.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO ZHICHENG TRANSPORTATION RAIL ACCESSORIES CO LTD
- Filing Date
- 2025-07-22
- Publication Date
- 2026-06-05
AI Technical Summary
The polishing efficiency of rail vehicle wheels is low, and manual operation is inconvenient, making it difficult to meet the demand for high-efficiency polishing.
Design a metal material polishing device including a base, a placement seat, a polishing mechanism, and a positioning mechanism. The device uses a motor to drive the lead screw and the placement seat to rotate, so as to achieve close contact and synchronous rotation between the arc-shaped polishing block and the wheel surface. Combined with the positioning mechanism to fix the wheel, the device ensures the stability and efficiency of polishing.
It improves the efficiency and stability of wheel polishing, meets the high standards required for the surface quality of metal materials in rail vehicles, and extends the service life of components.
Smart Images

Figure CN224322919U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of polishing technology for rail vehicles, and more specifically, to a polishing device for metal materials used in rail vehicles. Background Technology
[0002] Rail vehicles are an important component of urban transportation, long-distance transportation, and freight transportation. With the continuous development of rail transit technology and the increase in the operating speed of rail vehicles, the design and manufacturing requirements for rail vehicles are becoming increasingly stringent, especially in terms of material selection, surface treatment, and quality control. The surface quality of metal components in rail vehicles, especially wheels, tracks, car bodies, and their accessories, plays a crucial role in the performance, safety, and service life of the vehicles. For example, wheels and tracks are mainly made of high-strength steel to withstand large loads and long-term friction. Polishing is an important process in surface treatment technology, which aims to make the metal surface smooth, flat, and uniform through physical or chemical means. Smooth metal materials can reduce the friction between other metal components, such as wheels and tracks, thereby reducing wear and extending the service life of components.
[0003] Since the wheels of rail vehicles are not round but conical, they are usually polished manually, which is inconvenient and inefficient. Utility Model Content
[0004] To overcome the above deficiencies, this utility model provides a metal polishing device for rail vehicles that overcomes or at least partially solves the above technical problems.
[0005] This utility model is implemented as follows:
[0006] This utility model provides a metal polishing device for rail vehicles, including a base and a placement seat. The placement seat is rotatably mounted on the surface of the base for placing wheels. A polishing mechanism is mounted on the surface of the base for polishing the wheels. The polishing mechanism includes:
[0007] A bracket is fixedly mounted on the surface of a base, and a support rod is slidably mounted on the side wall of the bracket;
[0008] An arc-shaped grinding block is fixedly installed at one end of a support rod, and the arc surface of the arc-shaped grinding block is adapted to the conical surface of the wheel.
[0009] A rotating shaft is fixedly installed at the bottom of the placement base and is rotatably connected to the base.
[0010] In a preferred embodiment, a lead screw is rotatably mounted inside the bracket cavity, and a threaded block is fixedly mounted on the surface of the support rod. The lead screw is threadedly connected to the threaded block to drive the arc-shaped grinding block to abut against the surface of the wheel.
[0011] In a preferred embodiment, a first motor is fixedly mounted on the surface of the bracket, and the output end of the first motor is fixedly connected to one end of the lead screw for driving the lead screw to rotate.
[0012] In a preferred embodiment, a second motor is fixedly installed inside the base cavity, and the output end of the second motor is fixedly connected to one end of the rotating shaft to drive the placement seat to rotate.
[0013] In a preferred embodiment, a positioning mechanism is installed on the surface of the placement seat for fixing the wheel to the surface of the placement seat. The positioning mechanism includes a positioning block and a driving block. The positioning block is symmetrically slidably installed on the surface of the placement seat for clamping and fixing the wheel. The driving block is fixedly installed at the bottom of the positioning block, and the surface of the driving block is wedge-shaped.
[0014] In a preferred embodiment, an abutment block is slidably installed in the inner cavity of the placement seat. The abutment block is also wedge-shaped and contacts the surface of the drive block. A spring is installed in the inner cavity of the placement seat. One end of the spring is fixedly connected to the placement seat, and the other end of the spring is fixedly connected to the drive block, for driving the positioning block to move away from the wheel.
[0015] In a preferred embodiment, a connecting rod is fixedly installed at the bottom of the abutment block, a slider is fixedly installed at the bottom of the connecting rod, a drive ring is slidably installed on the surface of the base, a guide rod is fixedly installed at the bottom of the drive ring, the guide rod is slidably connected to the base, a groove is opened in the inner cavity of the drive ring, and the slider is slidably connected to the groove.
[0016] In a preferred embodiment, a first toothed plate is fixedly installed at the bottom of the drive ring, a gear is rotatably installed in the inner cavity of the base, the gear meshes with the first toothed plate, and a second toothed plate is fixedly installed at the bottom of the support rod, the second toothed plate meshing with the gear.
[0017] The present invention provides a metal polishing device for rail vehicles, the advantages of which include:
[0018] 1. By setting up a polishing mechanism, the wheel to be polished is placed on the surface of the mounting seat. The first motor drives the lead screw to rotate, which drives the threaded block to move the arc-shaped grinding block down and stick to the surface of the wheel. Then, the second motor drives the mounting seat to rotate the wheel, so that the surface of the wheel can be polished by the arc-shaped grinding block, thereby improving polishing efficiency.
[0019] 2. By setting a positioning mechanism, when the first motor drives the arc-shaped grinding block to move down and stick to the wheel surface, it drives the second toothed plate to move down synchronously. The gear drives the first toothed plate to drive the drive ring to move up, pushing the slider and the abutment block to move up. The drive block drives the positioning block to move towards the side wall of the wheel, fixing the wheel on the surface of the placement seat and ensuring the stability of polishing. Attached Figure Description
[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0021] Figure 1 This is a perspective view provided by an embodiment of the present utility model;
[0022] Figure 2 A schematic diagram of the front cross-sectional structure provided for an embodiment of this utility model;
[0023] Figure 3 A cross-sectional view of the placement seat provided for an embodiment of this utility model;
[0024] Figure 4 A perspective view of the drive ring provided for an embodiment of this utility model.
[0025] In the diagram: 1. Base; 2. Placement seat; 3. Polishing mechanism; 301. Bracket; 302. Support rod; 303. Arc-shaped grinding block; 304. Lead screw; 305. Threaded block; 306. First motor; 307. Rotating shaft; 308. Second motor; 4. Positioning mechanism; 401. Positioning block; 402. Drive block; 403. Spring; 404. Abutment block; 405. Connecting rod; 406. Slider; 407. Drive ring; 408. Guide rod; 409. Slide groove; 410. First toothed plate; 411. Gear; 412. Second toothed plate. Detailed Implementation
[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0027] Reference Figure 1-4This utility model provides a technical solution: a metal material polishing device for rail vehicles, including a base 1 and a placement seat 2. The placement seat 2 is rotatably mounted on the surface of the base 1 for placing wheels. A polishing mechanism 3 is installed on the surface of the base 1 for polishing the wheels. The polishing mechanism 3 includes a bracket 301, an arc-shaped grinding block 303, and a rotating shaft 307. The bracket 301 is fixedly mounted on the surface of the base 1. A support rod 302 is slidably mounted on the side wall of the bracket 301. The arc-shaped grinding block 303 is fixedly mounted on one end of the support rod 302. The arc surface of the arc-shaped grinding block 303 is adapted to the conical surface of the wheel for polishing the wheel.
[0028] Reference Figure 1-2 In a preferred embodiment, a lead screw 304 is rotatably mounted inside the bracket 301, and a threaded block 305 is fixedly mounted on the surface of the support rod 302. The lead screw 304 and the threaded block 305 are threadedly connected to drive the arc-shaped grinding block 303 to abut against the wheel surface. A first motor 306 is fixedly mounted on the surface of the bracket 301. The output end of the first motor 306 is fixedly connected to one end of the lead screw 304 to drive the lead screw 304 to rotate. A rotating shaft 307 is fixedly mounted at the bottom of the placement seat 2 and is rotatably connected to the base 1. A second motor 308 is fixedly mounted inside the cavity of the base 1. The output end of the second motor 308 is fixedly connected to one end of the rotating shaft 307 to drive the placement seat 2 to rotate.
[0029] In a preferred embodiment, during use, the wheel to be polished is placed on the surface of the mounting base 2. The first motor 306 drives the lead screw 304 to rotate, which drives the threaded block 305 to move the arc-shaped grinding block 303 down and press it against the surface of the wheel. Then, the second motor 308 drives the mounting base 2 to rotate the wheel, so that the surface of the wheel can be polished by the arc-shaped grinding block 303, thereby improving the polishing efficiency.
[0030] Reference Figure 1-4 In a preferred embodiment, a positioning mechanism 4 is installed on the surface of the placement seat 2 for fixing the wheel to the surface of the placement seat 2. The positioning mechanism 4 includes a positioning block 401 and a driving block 402. The positioning block 401 is symmetrically slidably installed on the surface of the placement seat 2 for clamping and fixing the wheel. The driving block 402 is fixedly installed at the bottom of the positioning block 401, and the surface of the driving block 402 is wedge-shaped.
[0031] Reference Figure 1-4 In a preferred embodiment, an abutment block 404 is slidably installed in the inner cavity of the placement seat 2. The abutment block 404 is also wedge-shaped and contacts the surface of the drive block 402. A spring 403 is installed in the inner cavity of the placement seat 2. One end of the spring 403 is fixedly connected to the placement seat 2, and the other end of the spring 403 is fixedly connected to the drive block 402. The spring 403 is used to drive the positioning block 401 to move away from the wheel direction and to make the drive block 402 fit tightly against the side wall of the abutment block 404.
[0032] Reference Figure 1-4 In a preferred embodiment, a connecting rod 405 is fixedly installed at the bottom of the abutment block 404, a slider 406 is fixedly installed at the bottom of the connecting rod 405, a drive ring 407 is slidably installed on the surface of the base 1, a guide rod 408 is fixedly installed at the bottom of the drive ring 407, the guide rod 408 is slidably connected to the base 1, and a groove 409 is opened in the inner cavity of the drive ring 407, and the slider 406 is slidably connected to the groove 409.
[0033] Reference Figure 1-4 In a preferred embodiment, a first toothed plate 410 is fixedly installed at the bottom of the drive ring 407, and a gear 411 is rotatably installed in the inner cavity of the base 1. The gear 411 meshes with the first toothed plate 410. A second toothed plate 412 is fixedly installed at the bottom of the support rod 302. The second toothed plate 412 meshes with the gear 411. When the first motor 306 drives the arc-shaped polishing block 303 to move down and press against the wheel surface, it drives the second toothed plate 412 to move down synchronously. The gear 411 drives the first toothed plate 410 to drive the drive ring 407 to move up, pushing the slider 406 and the abutment block 404 to move up. It also drives the drive block 402 to move the positioning block 401 towards the side wall of the wheel, fixing the wheel on the surface of the placement seat 2 and ensuring the stability of polishing.
[0034] In a preferred embodiment, during use, when the first motor 306 drives the arc-shaped polishing block 303 to move down and press against the wheel surface, it drives the second toothed plate 412 to move down synchronously, and drives the first toothed plate 410 to move the drive ring 407 up through the gear 411, pushing the slider 406 and the abutment block 404 to move up, and driving the drive block 402 to move the positioning block 401 towards the side wall of the wheel, fixing the wheel on the surface of the placement seat 2, and ensuring the stability of polishing.
[0035] Specifically, the working principle of this metal polishing device for rail vehicles is as follows: When in use, the wheel to be polished is placed on the surface of the placement seat 2. The first motor 306 drives the lead screw 304 to rotate, which drives the threaded block 305 to move the arc-shaped grinding block 303 down and stick to the surface of the wheel. Then, the second motor 308 drives the placement seat 2 to rotate the wheel, so that the surface of the wheel can be polished by the arc-shaped grinding block 303, thereby improving the polishing efficiency.
[0036] When the first motor 306 drives the arc-shaped polishing block 303 to move down and press against the wheel surface, it drives the second toothed plate 412 to move down synchronously. Through the gear 411, it drives the first toothed plate 410 to drive the drive ring 407 to move up, pushing the slider 406 and the abutment block 404 to move up, and driving the drive block 402 to drive the positioning block 401 to move towards the wheel side wall, fixing the wheel on the surface of the placement seat 2 and ensuring the stability of polishing.
[0037] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A metal polishing device for rail vehicles, comprising a base (1) and a placement seat (2), wherein the placement seat (2) is rotatably mounted on the surface of the base (1) for placing wheels, characterized in that, A polishing mechanism (3) is mounted on the surface of the base (1) for polishing the wheel. The polishing mechanism (3) includes: A bracket (301) is fixedly installed on the surface of a base (1), and a support rod (302) is slidably installed on the side wall of the bracket (301); An arc-shaped grinding block (303) is fixedly installed at one end of a support rod (302), and the arc surface of the arc-shaped grinding block (303) is adapted to the conical surface of the wheel. A rotating shaft (307) is fixedly installed at the bottom of the placement seat (2) and is rotatably connected to the base (1).
2. The metal polishing device for rail vehicles according to claim 1, characterized in that, The bracket (301) has a lead screw (304) rotatably mounted inside, and a threaded block (305) is fixedly mounted on the surface of the support rod (302). The lead screw (304) and the threaded block (305) are threadedly connected to drive the arc-shaped grinding block (303) to abut against the surface of the wheel.
3. A metal polishing device for rail vehicles according to claim 2, characterized in that, A first motor (306) is fixedly mounted on the surface of the bracket (301). The output end of the first motor (306) is fixedly connected to one end of the lead screw (304) for driving the lead screw (304) to rotate.
4. A metal polishing device for rail vehicles according to claim 1, characterized in that, The second motor (308) is fixedly installed in the inner cavity of the base (1). The output end of the second motor (308) is fixedly connected to one end of the rotating shaft (307) to drive the placement seat (2) to rotate.
5. A metal polishing device for rail vehicles according to claim 1, characterized in that, A positioning mechanism (4) is installed on the surface of the placement seat (2) for fixing the wheel on the surface of the placement seat (2). The positioning mechanism (4) includes a positioning block (401) and a driving block (402). The positioning block (401) is symmetrically slidably installed on the surface of the placement seat (2) for clamping and fixing the wheel. The driving block (402) is fixedly installed at the bottom of the positioning block (401). The surface of the driving block (402) is wedge-shaped.
6. A metal polishing device for rail vehicles according to claim 5, characterized in that, An abutment block (404) is slidably installed in the inner cavity of the placement seat (2). The abutment block (404) is also wedge-shaped. The abutment block (404) is in contact with the surface of the driving block (402). A spring (403) is installed in the inner cavity of the placement seat (2). One end of the spring (403) is fixedly connected to the placement seat (2), and the other end of the spring (403) is fixedly connected to the driving block (402) for driving the positioning block (401) to move away from the wheel.
7. A metal polishing device for rail vehicles according to claim 6, characterized in that, A connecting rod (405) is fixedly installed at the bottom of the abutment block (404), and a slider (406) is fixedly installed at the bottom of the connecting rod (405). A drive ring (407) is slidably installed on the surface of the base (1), and a guide rod (408) is fixedly installed at the bottom of the drive ring (407). The guide rod (408) is slidably connected to the base (1). A groove (409) is opened in the inner cavity of the drive ring (407), and the slider (406) is slidably connected to the groove (409).
8. A metal polishing device for rail vehicles according to claim 7, characterized in that, The drive ring (407) has a first toothed plate (410) fixedly installed at its bottom. The base (1) has a gear (411) rotatably installed in its inner cavity. The gear (411) meshes with the first toothed plate (410). The support rod (302) has a second toothed plate (412) fixedly installed at its bottom. The second toothed plate (412) meshes with the gear (411).