Track polishing mechanical device
The adjustable assembly mechanism and air intake filtration system solve the problems of inconvenient installation and insufficient dust purification of existing devices on tracks with different gauges, achieving stability and efficient dust treatment in track grinding, and improving construction progress and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- 林燕
- Filing Date
- 2026-04-07
- Publication Date
- 2026-05-12
AI Technical Summary
Existing track grinding machinery has difficulty adapting quickly to different track gauges and grinding wheels of different sizes. It also suffers from poor dust collection and unstable contact with the track, which affects construction progress and safety.
The device employs an adjustable assembly mechanism, combined with elastic support and air suction, and features a detachable grinding wheel. This allows the device to adapt to different track gauges, maintain stable contact with the track, and purify dust through multi-stage filtration, ensuring grinding quality and efficiency.
This enabled stable installation of the device on tracks with different gauges and efficient dust purification, improving construction progress and safety, and reducing downtime and dust pollution.
Smart Images

Figure CN122013616A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of rail transit, specifically to a rail grinding machine. Background Technology
[0002] With the booming development of the rail transit industry, tracks are subjected to alternating loads and friction from train operation over long periods, making them highly susceptible to defects such as wear, cracks, and corrugated abrasion. These defects not only exacerbate vibration and noise during train operation but also pose a serious threat to train safety. Therefore, track grinding machinery has become an important piece of equipment for maintaining track surface quality and extending track service life. Through regular grinding, damaged layers on the track surface can be effectively removed, restoring its geometry and surface smoothness, ensuring smooth and safe train operation. Most existing track grinding machines adopt a fixed structure, using a motor to drive grinding wheels to grind the track surface. Their grinding mechanisms are usually integrated, making it difficult to quickly change grinding wheels of different sizes to meet diverse grinding needs.
[0003] Taking track grinding operations on a railway trunk line as an example, existing equipment requires a significant amount of time for structural adjustments and reassembly when dealing with tracks of different gauges, severely impacting construction progress. During grinding, poor dust collection leads to pervasive dust, endangering operator health and potentially causing equipment malfunctions due to dust accumulation. Furthermore, when encountering tracks with localized depressions, the lack of elastic support in the moving mechanism prevents stable contact between the grinding head and the track, resulting in substandard track surface flatness after grinding, increasing subsequent rework costs and safety hazards. Therefore, this invention provides a track grinding mechanical device to address the shortcomings of existing technologies. Summary of the Invention
[0004] To address the shortcomings of existing technologies, this invention provides a track grinding machine that solves the problems mentioned in the background section.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a track grinding machine, comprising two assembly mechanisms, each assembly mechanism including a connecting rod and two connecting rods. Multiple connecting holes are provided on the outer sides of both ends of the connecting rod, and multiple storage slots are provided on the outer sides of the connecting rods. One end of the connecting rod has a storage slot. The outer side of the connecting rod is slidably connected to the inner side of the storage slot. A pin is slidably connected to the inner sides of the connecting holes. A hydraulic cylinder is mounted on the top of the connecting rod, and mounting brackets are fixedly connected to the tops of the two hydraulic cylinders. A handle is fixedly connected to the top of one of the connecting rods.
[0006] Preferably, an air suction mechanism is installed on the outside of the mounting bracket. The air suction mechanism includes a motor and an air cylinder. A transmission rod is fixedly connected to the output end of the motor. A cam is fixedly connected to the outside of the transmission rod. A sliding rod is slidably connected to a through hole at one end of the air cylinder. A spring is sleeved on the outside of the sliding rod. One end of the spring is fixedly connected to one end of the sliding rod, and the other end of the spring is fixedly connected to the outside of the air cylinder.
[0007] Preferably, the outer side of the cam contacts one end of the sliding rod, one end of the sliding rod is fixedly connected to a piston, the outer side of the piston is slidably connected to the inner wall of the air cylinder, the outer side of the air cylinder is provided with an exhaust port, the other end of the air cylinder is fixedly connected to an air inlet pipe, and both the exhaust port and the air inlet pipe are provided with a one-way valve.
[0008] Preferably, a grinding mechanism is provided on the outside of the transmission rod. The grinding mechanism includes a grinding wheel and two sliding rods. An assembly block is fixedly connected to the outside of the grinding wheel. A strip-shaped hole is opened inside the assembly block. Two insertion holes are opened on the inner wall of the strip-shaped hole.
[0009] Preferably, the slide rod is slidably connected inside the transmission rod, a collar is fixedly connected to the outside of the slide rod, a lever is fixedly connected to the outside of the collar, a second spring is sleeved on the outside of the slide rod, one end of the second spring is fixedly connected to the outside of the transmission rod, the other end of the second spring is fixedly connected to the outside of the collar, and one end of the slide rod is engaged inside the insertion hole.
[0010] Preferably, one end of the sleeve rod is provided with a moving mechanism, the moving mechanism includes a fixed block, the outer side of the fixed block is fixedly connected to one end of the sleeve rod, the outer side of the fixed block is fixedly connected to a spring telescopic rod, the outer side of the spring telescopic rod is fixedly connected to a movable plate, and the outer side of the movable plate is rotatably connected to a roller.
[0011] Preferably, the movable plate has an internal mounting groove, and an auxiliary wheel is rotatably connected inside the mounting groove.
[0012] Preferably, a filter mechanism is fixedly connected to the outside of the mounting frame. The filter mechanism includes a filter box, which is fixedly connected to the outside of the mounting frame. The filter box is provided with a barrier mesh and an absorption mesh inside.
[0013] Preferably, a cover plate is provided at the inner edge of the filter box, and the top of the filter box is fixedly connected to one end of the air inlet pipe.
[0014] Preferably, the outer side of the socket rod is provided with a side processing mechanism, the side processing mechanism includes a slide rail, the slide rail is installed on the outer side of the socket rod, an assembly frame is detachably connected to the movable seat of the slide rail, and a grinding device is provided on the outer side of the assembly frame.
[0015] This invention provides a track grinding machine. It has the following beneficial effects: 1. This invention, through its adjustable assembly mechanism, can adapt to the installation requirements of tracks with different gauges. At the same time, the elastic support and auxiliary wheel design of the moving mechanism enable the device to maintain stable contact and linear movement on uneven tracks, effectively avoiding jumping and deviation during the grinding process, ensuring the stability and accuracy of the grinding operation, and improving grinding quality and efficiency.
[0016] 2. This invention utilizes the reciprocating motion of a piston to generate suction, and in conjunction with a one-way valve, it achieves continuous air intake. The dust-laden air passes through a multi-stage filtration system consisting of a barrier mesh and an absorption mesh, which not only intercepts large particles of debris but also efficiently adsorbs fine dust and fumes, purifying the exhaust air, significantly reducing dust pollution, improving the working environment, and protecting the health of operators.
[0017] 3. The present invention allows for easy disassembly of the grinding wheel via a lever. After installation, the combined action of the spring and centrifugal force ensures a secure connection. This not only ensures stable operation of the grinding wheel during grinding but also significantly reduces downtime caused by grinding wheel replacement, thereby improving the overall operating efficiency and practicality of the equipment. Attached Figure Description
[0018] Figure 1 This is a perspective view of the present invention; Figure 2 This is a right-side perspective view of the present invention; Figure 3 This is a rear perspective view of the present invention; Figure 4 This is a schematic diagram of the assembly mechanism of the present invention; Figure 5 This is a schematic diagram of the structure of the moving mechanism of the present invention; Figure 6 This is a schematic diagram of the air intake mechanism of the present invention; Figure 7 This is a schematic diagram of the grinding mechanism of the present invention; Figure 8 for Figure 7 Enlarged view of point A in the middle; Figure 9 This is a schematic diagram of the filtration mechanism of the present invention; Figure 10 for Figure 3 Enlarged view of point B in the middle.
[0019] The components include: 1. Assembly mechanism; 101. Connecting rod; 102. Connecting hole one; 103. Sleeve rod; 104. Storage slot; 105. Connecting hole two; 106. Pin; 2. Moving mechanism; 201. Fixing block; 202. Spring telescopic rod; 203. Movable plate; 204. Roller; 205. Mounting slot; 206. Auxiliary wheel; 3. Mounting frame; 4. Suction mechanism; 401. Motor one; 402. Transmission rod; 403. Air pump; 404. Sliding rod; 405. Spring one; 406. Movable plate. 407. Plug; 408. Cam; 409. Exhaust port; 4001. Intake pipe; 5. Grinding mechanism; 501. Grinding wheel; 502. Assembly block; 503. Strip hole; 504. Insertion hole; 505. Slide rod; 506. Collar; 507. Dial plate; 508. Spring II; 6. Filtering mechanism; 601. Filter box; 602. Barrier mesh; 603. Absorption mesh; 604. Cover plate; 7. Side treatment mechanism; 701. Slide rail; 702. Assembly frame; 703. Grinding device; 8. Handle; 9. Hydraulic cylinder. Detailed Implementation
[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0021] Please see the appendix Figure 1 -Appendix Figure 10This invention provides a track grinding machine, including an assembly mechanism 1. The assembly mechanism 1 includes a connecting rod 101 and two sleeve rods 103. Multiple connecting holes 102 are provided on the outer sides of both ends of the connecting rod 101. Multiple receiving slots 104 are provided on the outer sides of the sleeve rods 103, with a receiving slot 104 at one end of each sleeve rod 103. The outer side of the connecting rod 101 is slidably connected to the inner side of the receiving slot 104. A pin 106 is slidably connected to the inner side of the connecting hole 102 and the connecting hole 105. The connecting rod 101 serves as the main support structure, and the connecting holes 102 on both ends are aligned with the connecting holes 105 of the sleeve rods 103. The pin 106 enables adjustable length assembly to adapt to different track gauge requirements. The sleeve rods 103... Hydraulic cylinders 9 are mounted on the top of the device. A mounting frame 3 is fixedly connected to the top of two hydraulic cylinders 9, serving as the core support platform. The overall height can be adjusted via connecting rods 103 connected to the hydraulic cylinders 9 to adapt to the grinding needs of different types of tracks. A handle 8 is fixedly connected to the top of one of the connecting rods 101. A suction mechanism 4 is mounted on the outside of the mounting frame 3. The suction mechanism 4 includes a motor 401 and an air cylinder 403. A transmission rod 402 is fixedly connected to the output end of the motor 401. A cam 407 is fixedly connected to the outside of the transmission rod 402. A sliding rod 404 is slidably connected to the through hole at one end of the air cylinder 403. A spring 405 is sleeved on the outside of the sliding rod 404. One end of the spring 405 is fixedly connected to one end of the sliding rod 404. The other end of the spring 405... One end is fixedly connected to the outside of the air cylinder 403. The outside of the cam 407 contacts one end of the sliding rod 404. A piston 406 is fixedly connected to one end of the sliding rod 404. The outside of the piston 406 is slidably connected to the inner wall of the air cylinder 403. An exhaust port 408 is provided on the outside of the air cylinder 403. An air inlet pipe 409 is fixedly connected to the other end of the air cylinder 403. One-way valves are provided inside the exhaust port 408 and the air inlet pipe 409. The one-way valves in the air inlet pipe 409 and the exhaust port 408 ensure unidirectional airflow, so that when the piston 406 reciprocates, the air cylinder 403 can continuously draw dust into the filter box 601. A grinding mechanism 5 is provided outside the transmission rod 402. The grinding mechanism 5 includes a grinding wheel 501 and two sliding rods 505. The outside of the grinding wheel 501... An assembly block 502 is fixedly connected. The assembly block 502 has a slotted hole 503 inside, and two insertion holes 504 are formed on the inner wall of the slotted hole 503. A slide rod 505 is slidably connected inside the transmission rod 402. A collar 506 is fixedly connected to the outer side of the slide rod 505, and a lever 507 is fixedly connected to the outer side of the collar 506. A second spring 508 is sleeved on the outside of the slide rod 505. One end of the second spring 508 is fixedly connected to the outer side of the transmission rod 402, and the other end is fixedly connected to the outer side of the collar 506. One end of the slide rod 505 is engaged inside the insertion hole 504. A grinding wheel 501 is connected to the transmission rod 402 via the assembly block 502. The design of the slotted hole 503 and insertion holes 504 allows for quick replacement of grinding wheels 501 of different specifications.To adapt to different grinding needs, a moving mechanism 2 is provided at one end of the connecting rod 103. The moving mechanism 2 includes a fixed block 201, the outer side of which is fixedly connected to one end of the connecting rod 103. A spring telescopic rod 202 is fixedly connected to the outer side of the fixed block 201, and a movable plate 203 is fixedly connected to the outer side of the spring telescopic rod 202. A roller 204 is rotatably connected to the outer side of the movable plate 203. An installation groove 205 is provided inside the movable plate 203, and an auxiliary wheel 206 is rotatably connected inside the installation groove 205. The spring telescopic rod 202 provides elastic support to ensure that the roller 204 on the movable plate 203 is always in close contact with the bottom of the track, adapting to the unevenness of the track surface. The auxiliary wheel 206 is installed in the installation groove 205 of the movable plate 203 and contacts the outer side of the track. The auxiliary device moves stably along the track direction, reducing lateral offset. A filter mechanism 6 is fixedly connected to the outer side of the mounting frame 3. The filter mechanism 6 includes a filter box 601. The filter box 601 is fixedly connected to the outside of the mounting bracket 3. Inside the filter box 601, there is a barrier mesh 602 and an absorption mesh 603. A cover plate 604 is provided at the inner edge of the filter box 601. The top of the filter box 601 is fixedly connected to one end of the air inlet pipe 409. The barrier mesh 602 uses a coarse filter design to intercept larger particles of debris, preventing them from damaging the absorption mesh 603 or entering the air cylinder 403. The absorption mesh 603 uses activated carbon or high-efficiency filter material to adsorb fine dust and... The flue gas is purified and discharged. A side treatment mechanism 7 is provided on the outer side of the connecting rod 103. The side treatment mechanism 7 includes a slide rail 701, which is installed on the outer side of the connecting rod 103. An assembly frame 702 is detachably connected to the movable seat of the slide rail 701. A grinding device 703 is provided on the outer side of the assembly frame 702. The slide rail 701 can adjust the lateral position of the assembly frame 702, allowing the grinding device 703 to perform targeted grinding on the side of the track, addressing side grinding defects.
[0022] Specifically, first, place the connecting rod 103 on the track, then bring the two connecting rods 103 together, and insert them into the connecting hole 2 105, passing through the connecting hole 1 102 and the connecting hole 2 105. This completes the setup. Adjust the position of the connecting rod 101 in the receiving slot 104 so that the connecting hole 1 102 aligns with the connecting hole 2 105, and insert the pin 106 to secure it. At this point, the mounting slot 205 will be flush against the outside of the track, aiding movement. The roller 204 will be flush against the bottom side of the track, facilitating the movement of the entire device. Start the motor 401 to drive the transmission rod 402, which in turn rotates the grinding wheel 501 for grinding. Simultaneously, it rotates the cam 407, which in turn pushes the sliding rod 404, causing the piston 406 to reciprocate. The filter box 601 absorbs the grinding debris and dust, the barrier net 602 blocks large debris, and the absorption net 603 absorbs flue gas. The piston 406... The reciprocating motion causes the air cylinder 403 to generate suction through the air inlet pipe 409, drawing the grinding dust into the filter box 601. The dust first passes through the barrier screen 602 to intercept large particles, and then the absorption screen 603 adsorbs fine particles. The purified air is discharged through the exhaust port 408. In addition, the two levers 507 can be pushed to move the slide rod 505 to remove and replace the grinding wheel 501. Pushing the lever 507 compresses the second spring 508, causing the slide rod 505 to disengage from the insertion hole 504, thus removing the grinding wheel 501. After installing the new grinding wheel 501, the lever 507 is released, and the second spring 508 pushes the slide rod 505 back into the insertion hole 504. When the grinding wheel 501 rotates, under the influence of centrifugal force, the two slide rods 505 will be stably engaged inside the insertion hole 504. When the grinding wheel 501 rotates, the slide rods 505 move outward under the action of centrifugal force, strengthening the engagement with the insertion hole 504 and ensuring stable connection during high-speed rotation.
[0023] Working principle: First, place the connecting rod 103 on the track. Then, bring the two connecting rods 103 together and insert them into the connecting hole 2 105, passing through the connecting hole 1 102 and the connecting hole 2 105. This completes the setup. At this point, the mounting groove 205 will be flush against the outside of the track, aiding movement. The roller 204 will be flush against the bottom side of the track, facilitating the movement of the entire device. Start the motor 1 401 to drive the transmission rod 402, which in turn drives the grinding wheel 501 to rotate for grinding. Simultaneously, it drives the cam 407 to rotate, thereby pushing the sliding... Rod 404 causes piston 406 to reciprocate, allowing the filter box 601 to absorb grinding debris and dust. Barrier mesh 602 can block large pieces of debris, and absorption mesh 603 is used to absorb flue gas. In addition, two levers 507 can be pushed to move slide rod 505, allowing the grinding wheel 501 to be disassembled and replaced. When the grinding wheel 501 rotates, it is affected by centrifugal force, and the two slide rods 505 will be stably engaged inside the insertion hole 504. The grinding device 703 is a scaled-down version of the grinding mechanism 5, which grinds the side of the track.
[0024] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A track grinding machine, comprising two assembly mechanisms (1), characterized in that, The assembly mechanism (1) includes a connecting rod (101) and two sleeve rods (103). Multiple connecting holes (102) are provided on the outer sides of both ends of the connecting rod (101). Multiple storage slots (104) are provided on the outer sides of the sleeve rods (103). A storage slot (104) is provided at one end of the sleeve rods (103). The outer side of the connecting rod (101) is slidably connected to the inner side of the storage slot (104). A pin (106) is slidably connected to the inner side of the connecting hole (102) and the connecting hole (105). A hydraulic cylinder (9) is installed on the top of the sleeve rod (103). A mounting bracket (3) is fixedly connected to the top of the two hydraulic cylinders (9). A handle (8) is fixedly connected to the top of one of the connecting rods (101).
2. The track grinding machine according to claim 1, characterized in that, An air suction mechanism (4) is installed on the outside of the mounting bracket (3). The air suction mechanism (4) includes a motor (401) and an air cylinder (403). A transmission rod (402) is fixedly connected to the output end of the motor (401). A cam (407) is fixedly connected to the outside of the transmission rod (402). A sliding rod (404) is slidably connected to the through hole at one end of the air cylinder (403). A spring (405) is sleeved on the outside of the sliding rod (404). One end of the spring (405) is fixedly connected to one end of the sliding rod (404), and the other end of the spring (405) is fixedly connected to the outside of the air cylinder (403).
3. The track grinding machine according to claim 2, characterized in that, The outer side of the cam (407) is in contact with one end of the sliding rod (404). One end of the sliding rod (404) is fixedly connected to a piston (406). The outer side of the piston (406) is slidably connected to the inner wall of the air cylinder (403). An exhaust port (408) is provided on the outer side of the air cylinder (403). An air inlet pipe (409) is fixedly connected to the other end of the air cylinder (403). A one-way valve is provided inside both the exhaust port (408) and the air inlet pipe (409).
4. The track grinding machine according to claim 3, characterized in that, A grinding mechanism (5) is provided on the outside of the transmission rod (402). The grinding mechanism (5) includes a grinding wheel (501) and two slide rods (505). An assembly block (502) is fixedly connected to the outside of the grinding wheel (501). A strip hole (503) is opened inside the assembly block (502). Two insertion holes (504) are opened on the inner wall of the strip hole (503).
5. The track grinding machine according to claim 4, characterized in that, The slide rod (505) is slidably connected inside the transmission rod (402). A collar (506) is fixedly connected to the outside of the slide rod (505). A lever (507) is fixedly connected to the outside of the collar (506). A second spring (508) is sleeved on the outside of the slide rod (505). One end of the second spring (508) is fixedly connected to the outside of the transmission rod (402), and the other end of the second spring (508) is fixedly connected to the outside of the collar (506). One end of the slide rod (505) is engaged inside the insertion hole (504).
6. The track grinding machine according to claim 1, characterized in that, One end of the connecting rod (103) is provided with a moving mechanism (2). The moving mechanism (2) includes a fixed block (201). The outer side of the fixed block (201) is fixedly connected to one end of the connecting rod (103). A spring telescopic rod (202) is fixedly connected to the outer side of the fixed block (201). A movable plate (203) is fixedly connected to the outer side of the spring telescopic rod (202). A roller (204) is rotatably connected to the outer side of the movable plate (203).
7. The track grinding machine according to claim 6, characterized in that, The movable plate (203) has an installation groove (205) inside, and an auxiliary wheel (206) is rotatably connected inside the installation groove (205).
8. The track grinding machine according to claim 1, characterized in that, A filter mechanism (6) is fixedly connected to the outside of the mounting frame (3). The filter mechanism (6) includes a filter box (601). The outside of the filter box (601) is fixedly connected to the outside of the mounting frame (3). The filter box (601) is provided with a barrier mesh (602) and an absorption mesh (603) inside.
9. A track grinding machine according to claim 8, characterized in that, A cover plate (604) is provided on the inner edge of the filter box (601), and the top of the filter box (601) is fixedly connected to one end of the air inlet pipe (409).
10. A track grinding machine according to claim 1, characterized in that, A side processing mechanism (7) is provided on the outside of the sleeve rod (103). The side processing mechanism (7) includes a slide rail (701). The slide rail (701) is installed on the outside of the sleeve rod (103). An assembly frame (702) is detachably connected to the movable seat of the slide rail (701). A grinding device (703) is provided on the outside of the assembly frame (702).