Grinding wheel swinging mechanism and steel rail grinding trolley

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The grinding wheel oscillation mechanism, which uses electromagnetic brake pads and worm gear transmission, solves the problem of complex angle adjustment in rail grinding equipment, enabling a fast, stable, and automated grinding process and improving the equipment's operating efficiency and safety.

CN224119374UActive Publication Date: 2026-04-14SHANDONG ZHIWO RAIL TRANSIT EQUIP CO LTD

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Patent Information

Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2025-03-26
Publication Date: 2026-04-14

AI Technical Summary

Technical Problem

The existing rail grinding equipment has a complex angle adjustment structure, which leads to a high failure rate, inconvenient operation, and insufficient stability, affecting the equipment's operating efficiency and safety.

Method used

By employing the mutual attraction and separation mechanism of electromagnetic brake pads, combined with worm gear transmission and servo motor drive, the grinding wheel angle can be quickly locked and adjusted, simplifying the angle adjustment process, and automated grinding is achieved through transverse and longitudinal movement mechanisms.

Benefits of technology

It improves the accuracy and stability of angle adjustment, reduces the difficulty of operation, extends the equipment life, improves work efficiency and safety, and realizes automated grinding.

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Patent Text Reader

Abstract

The utility model provides a grinding wheel swing mechanism and a steel rail polishing trolley, the grinding wheel swing mechanism comprises a fixing frame used for connecting all parts; the grinding mechanism is rotationally connected with the fixing frame and used for grinding the steel rail; the angle adjusting mechanism is used for adjusting the angle of the grinding mechanism, and the angle adjusting mechanism is connected with the fixing frame; and the angle locking mechanism is used for locking the angle of the grinding mechanism, and the angle locking mechanism is connected with the fixing frame. According to the grinding wheel swing mechanism, the angle can be quickly locked and adjusted through the mutual adsorption and separation mechanism of the electromagnetic brake pads. In addition, accurate angle control can be provided through the use of the electromagnetic brake pad, the stability and consistency of the angle in the grinding process are ensured, the grinding quality is improved, angle locking and adjusting are conducted in an electromagnetic adsorption mode, friction and abrasion in a traditional mechanical structure are reduced, and therefore the service life of equipment is prolonged.

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Description

Technical Field

[0001] This utility model relates to the field of rail grinding machines, and more specifically, to a grinding wheel oscillation mechanism and a rail grinding trolley. Background Technology

[0002] With the continuous expansion and upgrading of urban rail transit and high-speed railway networks, rails, as a key component of the railway transportation system, directly affect the operational safety and passenger comfort of trains. During long-term use, rails develop defects such as wear, cracks, and corrugation due to the pressure and friction of train wheelsets and environmental factors. These problems necessitate rail welding. After online welding and repair, the weld seams of railway rails need to be ground to ensure a smooth surface.

[0003] When grinding rails, it is usually necessary to adjust the angle of the grinding wheel to grind different areas of the rail surface. Currently, the angle adjustment mechanism of the rail grinding trolley typically involves multiple components, making the overall structure quite complex. This complex structure is prone to malfunctions during adjustment, increasing the difficulty of maintenance and repair, thus affecting the equipment's operating efficiency and reliability. Furthermore, in actual operation, operators may find adjusting the angle inconvenient, especially in the complex environment of a construction site, where the time and effort required for adjustment can impact overall work efficiency. Additionally, the stability of the angle adjustment structure may be insufficient, particularly in high-intensity working environments. Improper adjustment or external forces can lead to uneven grinding results, consequently affecting the rail's service life and train operation safety. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a grinding wheel oscillation mechanism with a simple structure and easy-to-control angle adjustment, comprising:

[0005] A mounting bracket is used to connect the various components;

[0006] A grinding mechanism, rotatably connected to the fixed frame, is used for grinding the steel rail;

[0007] An angle adjustment mechanism is used to adjust the angle of the grinding mechanism, and the angle adjustment mechanism is connected to the fixed frame;

[0008] An angle locking mechanism is used to lock the angle of the grinding mechanism, and the angle locking mechanism is connected to the fixing frame;

[0009] The angle locking mechanism includes:

[0010] The first electromagnetic brake pad is connected to the fixed frame;

[0011] The second electromagnetic brake pad is sleeved inside or outside the first electromagnetic brake pad and is rotatably connected to the first electromagnetic brake pad; the second electromagnetic brake pad is connected to the grinding mechanism, and when energized, the second electromagnetic brake pad and the first electromagnetic brake pad attract each other; when de-energized, the second electromagnetic brake pad and the first electromagnetic brake pad separate from each other.

[0012] As an optional solution to the technical solution of this utility model, the angle adjustment mechanism includes:

[0013] The swing block is connected to the grinding mechanism;

[0014] The worm gear has one end of its central shaft rotatably connected to the fixed frame and the other end connected to the swing block for transmission.

[0015] The worm gear meshes with the worm wheel;

[0016] A drive motor, the drive end of which is connected to the worm gear transmission.

[0017] As an optional solution to the technical solution of this utility model, 3. the polishing mechanism includes:

[0018] A connecting plate is connected to the angle adjustment mechanism and the angle locking mechanism;

[0019] The grinding motor is connected to the connecting plate;

[0020] The grinding wheel is connected to the drive end of the grinding motor.

[0021] In addition, this utility model also provides a rail grinding trolley, including the aforementioned grinding wheel swing mechanism.

[0022] As an optional solution to the technical solution of this utility model, the rail grinding trolley 5 also includes:

[0023] A frame for connecting various components, wherein the mounting bracket moves laterally and longitudinally relative to the frame;

[0024] A lateral movement mechanism, connected to the vehicle frame, is used to drive the grinding wheel swing mechanism to move laterally;

[0025] A longitudinal movement mechanism, connected to the fixed frame, is used to drive the fixed frame to move longitudinally;

[0026] The wheels are connected to the vehicle frame.

[0027] As an optional solution to the technical solution of this utility model, 6. the transverse movement mechanism includes:

[0028] The connecting frame is laterally slidably connected to the vehicle frame;

[0029] A horizontal slider is connected to the connecting frame;

[0030] A transverse screw is threadedly connected to the transverse slider.

[0031] A transverse servo motor is connected to the vehicle frame, and the drive end of the transverse servo motor is connected to the transverse screw drive.

[0032] As an optional solution to the technical solution of this utility model, the longitudinal movement mechanism includes:

[0033] The longitudinal sliding rail is connected to the connecting frame;

[0034] The longitudinal sliding block is connected to the fixed frame and slidably connected to the longitudinal sliding rail;

[0035] The longitudinal sliding screw is threadedly connected to the longitudinal sliding slider;

[0036] A longitudinal servo motor is connected to the longitudinal slide rail, and the drive end of the longitudinal servo motor is connected to the longitudinal screw drive.

[0037] As an optional solution to the technical solution of this utility model, the rail grinding trolley also includes:

[0038] The engine cover is connected to the vehicle frame and covers the exterior of each component;

[0039] Lighting equipment to provide illumination for the rail grinding trolley;

[0040] The electrical control box connects to various electrical components.

[0041] As an optional solution to the technical solution of this utility model, the frame is equipped with a lithium battery, which provides power to the rail grinding trolley.

[0042] As an optional solution of the present utility model, the vehicle frame is provided with a dust removal mechanism, and the dust suction port of the dust removal mechanism is located at the grinding area of the grinding mechanism.

[0043] The beneficial effects of this utility model are:

[0044] (1) The grinding wheel oscillation mechanism of this utility model can quickly lock and adjust the angle through the mutual adsorption and separation mechanism of electromagnetic brake pads. This method is faster and more convenient than mechanical locking or manual adjustment. The use of electromagnetic brake pads can provide precise angle control, ensure the stability and consistency of the angle during grinding, and improve the grinding quality. The use of electromagnetic adsorption for angle locking and adjustment reduces friction and wear in traditional mechanical structures, thereby extending the service life of the equipment. The operator only needs to operate the power on and power off through the electrical control system, without the need for complex mechanical adjustments, which reduces the difficulty of operation and improves work efficiency. When the power is off, the brake pads automatically separate, which can prevent forced locking in case of accident and increase the safety of the system. At the same time, the electromagnetic brake has a fast response speed and can be quickly adjusted and released in emergency situations.

[0045] (2) The rail grinding trolley of this utility model has the advantages of the above-mentioned grinding wheel swing mechanism. At the same time, the position of the grinding mechanism is adjusted by the horizontal and vertical movement mechanisms, which helps to realize automated grinding and save labor. Attached Figure Description

[0046] Figure 1 This is a schematic diagram of the structure of the grinding wheel oscillation mechanism of this utility model;

[0047] Figure 2 This is a schematic diagram of the structure of the grinding wheel oscillation mechanism of this utility model after removing the fixing frame and the grinding mechanism;

[0048] Figure 3 yes Figure 2 A structural diagram from another perspective;

[0049] Figure 4 This is a schematic diagram of the structure of the rail grinding trolley of this utility model;

[0050] Figure 5 This is a schematic diagram of the structure of the rail grinding trolley after removing the machine cover and part of the frame;

[0051] Figure 6 This is a schematic diagram of the transverse movement mechanism, longitudinal movement mechanism, and grinding wheel oscillation mechanism of the rail grinding trolley of this utility model.

[0052] in:

[0053] 100-Fixed bracket;

[0054] 200 - Angle adjustment mechanism; 201 - Swing block; 202 - Worm gear; 203 - Worm; 204 - Drive motor

[0055] 300 - Angle locking mechanism; 301 - First electromagnetic brake pad; 302 - Second electromagnetic brake pad;

[0056] 400 - Grinding mechanism; 401 - Connecting plate; 402 - Grinding motor; 403 - Grinding wheel;

[0057] 500-frame;

[0058] 600 - Lateral movement mechanism; 601 - Lateral movement slider; 602 - Lateral movement screw; 603 - Lateral movement servo motor; 604 - Connecting frame;

[0059] 700 - Longitudinal movement mechanism; 701 - Longitudinal movement slider; 702 - Longitudinal movement screw; 703 - Longitudinal movement servo motor; 704 - Longitudinal movement guide rail;

[0060] 800-Walking Wheel;

[0061] 900-Hood;

[0062] 910-Lighting installations;

[0063] 920-Electrical control box. Detailed Implementation

[0064] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings and examples.

[0065] like Figure 1 The grinding wheel oscillation mechanism includes a fixed frame 100, a grinding mechanism 400, an angle adjustment mechanism 200, and an angle locking mechanism 300. Specifically: the fixed frame 100 connects the various components; the grinding mechanism 400 is rotatably connected to the fixed frame 100 and is used for grinding the steel rail; the angle adjustment mechanism 200 is used to adjust the angle of the grinding mechanism 400 and is connected to the fixed frame 100; the angle locking mechanism 300 is used to lock the angle of the grinding mechanism 400 and is connected to the fixed frame 100.

[0066] Specifically, such as Figure 3As shown, the angle locking mechanism 300 includes a first electromagnetic brake pad 301 and a second electromagnetic brake pad 302. The first electromagnetic brake pad 301 is connected to the fixing frame 100; the second electromagnetic brake pad 302 is sleeved inside or outside the first electromagnetic brake pad 301 and rotatably connected to the first electromagnetic brake pad 301; the second electromagnetic brake pad 302 is connected to the grinding mechanism 400. When energized, the second electromagnetic brake pad 302 and the first electromagnetic brake pad 301 attract each other; when de-energized, the second electromagnetic brake pad 302 and the first electromagnetic brake pad 301 separate. In this embodiment, the first electromagnetic brake pad 301 is annular, with one end fixedly connected to the fixing frame 100. The second electromagnetic brake pad 302 is also annular, sleeved inside the first electromagnetic brake pad 301, and one end of the second electromagnetic brake pad 302 is fixedly connected to the grinding mechanism 400. When the angle of the grinding mechanism 400 is adjusted, the second electromagnetic brake 302 rotates within the first electromagnetic brake 301 following the rotation of the grinding mechanism 400. When the angle of the grinding mechanism 400 is adjusted to the required position, the first electromagnetic brake 301 is energized, generating an attraction force on the second electromagnetic brake 302 to prevent the second electromagnetic brake 302 from rotating, thereby locking the angle of the grinding mechanism 400.

[0067] As a further technical solution of this embodiment, such as Figure 2 As shown, the angle adjustment mechanism 200 includes a swing block 201, a worm gear 202, a worm 203, and a drive motor 204. Specifically: the swing block 201 is connected to the grinding mechanism 400; one end of the central shaft of the worm gear 202 is rotatably connected to the fixed frame 100, and the other end is drive-connected to the swing block 201; the worm 203 is meshed with the worm gear 202; and the drive end of the drive motor 204 is drive-connected to the worm 203. When angle adjustment of the grinding mechanism 400 is required, the drive motor 204 operates, driving the worm 203 to rotate, which in turn drives the worm gear 202 to rotate. The central shaft of the worm gear 202 drives the swing block 201 to rotate, thereby causing the swing block 201 to rotate and the grinding mechanism 400 to adjust the angle.

[0068] As a further technical solution of this embodiment, the grinding mechanism 400 includes a connecting plate 401, a grinding motor 402, and a grinding wheel 403. Specifically: the connecting plate 401 is connected to the angle adjustment mechanism 200 and the angle locking mechanism 300; in this embodiment, the connecting plate 401 is connected to the swing block 201 and the second electromagnetic brake plate 302; the grinding motor 402 is connected to the connecting plate 401; and the grinding wheel 403 is drive-connected to the drive end of the grinding motor 402.

[0069] In addition, this utility model also provides a rail grinding trolley including the above-mentioned grinding wheel oscillation mechanism, such as Figure 4-5The rail grinding trolley shown also includes: a frame 500, a lateral movement mechanism 600, a longitudinal movement mechanism 700, and wheels 800. Specifically: the frame 500 connects all components; the fixed frame 100 moves laterally and longitudinally relative to the frame 500; the lateral movement mechanism 600 is connected to the frame 500 and drives the grinding wheel oscillation mechanism to move laterally; the longitudinal movement mechanism 700 is connected to the fixed frame 100 and drives the fixed frame 100 to move longitudinally; and the wheels 800 are connected to the frame 500 and located below the frame 500.

[0070] As a further technical solution of this embodiment, such as Figure 6 As shown, the lateral movement mechanism 600 includes: a connecting frame 604, a lateral movement slider 601, a lateral movement screw 602, and a lateral movement servo motor 603. Specifically: the connecting frame 604 is laterally slidably connected to the vehicle frame 500; the lateral movement slider 601 is connected to the connecting frame 604; the lateral movement screw 602 is threadedly connected to the lateral movement slider 601; the lateral movement servo motor 603 is connected to the vehicle frame 500, and its drive end is drively connected to the lateral movement screw 602. When the lateral movement servo motor 603 is working, it drives the lateral movement screw 602 to rotate, causing the lateral movement slider 601 to move on the lateral movement screw 602, thereby causing the connecting frame 604 to move laterally.

[0071] The longitudinal movement mechanism 700 includes: a longitudinal movement slide rail 704, a longitudinal movement slider 701, a longitudinal movement screw 702, and a longitudinal movement servo motor 703. Specifically: the longitudinal movement slide rail 704 is connected to the connecting frame 604; the longitudinal movement slider 701 is connected to the fixed frame 100 and slidably connected to the longitudinal movement slide rail 704; the longitudinal movement screw 702 is threadedly connected to the longitudinal movement slider 701; and the longitudinal movement servo motor 703 is connected to the longitudinal movement slide rail 704, with its drive end connected to the longitudinal movement screw 702. Because the longitudinal movement mechanism 700 is connected to both the connecting frame 604 and the fixed frame 100, when the connecting frame 604 moves laterally, the connection relationship of the longitudinal movement mechanism 700 causes the fixed frame 100 to move laterally, i.e., the grinding wheel oscillation mechanism moves laterally. When the grinding wheel oscillation mechanism needs to move longitudinally, the longitudinal servo motor 703 works, driving the longitudinal screw 702 to rotate, thereby causing the longitudinal slider 701 to move. The movement of the longitudinal slider 701 causes the fixed frame 100 to move longitudinally, that is, the grinding wheel oscillation mechanism moves longitudinally.

[0072] As a further technical solution of this embodiment, such as Figure 4-5 As shown, the rail grinding trolley also includes: a hood 900, connected to the frame 500, covering the exterior of each component to protect the internal components and ensure the safety of the workers; a lighting device 910 to provide illumination for the rail grinding trolley; and an electrical control box 920, connected to each electrical component for controlling it. The rail grinding trolley is powered by a lithium battery.

[0073] In addition, for the convenience of dust removal, a dust removal mechanism is provided on the vehicle frame. The dust removal mechanism's suction port is located at the grinding area of the grinding mechanism and is generally covered on the outside of the suction port. The suction port is connected to the dust collection bucket through a pipe. The dust collection bucket is located on the vehicle frame. The dust removal mechanism can be a bag filter or a cartridge filter, etc.

[0074] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A grinding wheel oscillation mechanism, characterized in that, include: The mounting bracket (100) is used to connect the various components; The grinding mechanism (400) is rotatably connected to the fixed frame (100) and is used for grinding the steel rail; An angle adjustment mechanism (200) is used to adjust the angle of the grinding mechanism (400), and the angle adjustment mechanism (200) is connected to the fixing frame (100); An angle locking mechanism (300) is used to lock the angle of the grinding mechanism (400), and the angle locking mechanism (300) is connected to the fixing frame (100); The angle locking mechanism (300) includes: The first electromagnetic brake pad (301) is connected to the fixed frame (100); The second electromagnetic brake pad (302) is sleeved inside or outside the first electromagnetic brake pad (301) and is rotatably connected to the first electromagnetic brake pad (301). The second electromagnetic brake pad (302) is connected to the grinding mechanism (400). When energized, the second electromagnetic brake pad (302) and the first electromagnetic brake pad (301) attract each other. When de-energized, the second electromagnetic brake pad (302) and the first electromagnetic brake pad (301) separate from each other.

2. The grinding wheel oscillation mechanism according to claim 1, characterized in that, The angle adjustment mechanism (200) includes: The swing block (201) is connected to the polishing mechanism (400); The worm gear (202) has one end of its central shaft rotatably connected to the fixed frame (100) and the other end connected to the swing block (201) in a transmission manner; The worm (203) meshes with the worm wheel (202); The drive motor (204) is connected to the worm gear (203) via a drive end.

3. The grinding wheel oscillation mechanism according to claim 1, characterized in that, The polishing mechanism (400) includes: The connecting plate (401) is connected to the angle adjustment mechanism (200) and the angle locking mechanism (300); A grinding motor (402) is connected to the connecting plate (401); The grinding wheel (403) is connected to the drive end of the grinding motor (402).

4. A rail grinding trolley, characterized in that, Includes the grinding wheel oscillation mechanism as described in any one of claims 1-3.

5. The rail grinding trolley according to claim 4, characterized in that, Also includes: A frame (500) for connecting various components, wherein the mounting bracket (100) moves laterally and longitudinally relative to the frame (500); A lateral movement mechanism (600), connected to the frame (500), is used to drive the grinding wheel swing mechanism to move laterally; A longitudinal movement mechanism (700) is connected to the fixed frame (100) and is used to drive the fixed frame (100) to move longitudinally; The traveling wheels (800) are connected to the frame (500).

6. The rail grinding trolley according to claim 5, characterized in that, The traversing mechanism (600) includes: The connecting frame (604) is laterally slidably connected to the frame (500); A horizontal sliding slider (601) is connected to the connecting frame (604); The transverse screw (602) is threadedly connected to the transverse slider (601); A transverse servo motor (603) is connected to the frame (500), and the drive end of the transverse servo motor (603) is connected to the transverse screw (602) for transmission.

7. The rail grinding trolley according to claim 6, characterized in that, The longitudinal movement mechanism (700) includes: The longitudinal slide rail (704) is connected to the connecting frame (604); The longitudinal sliding block (701) is connected to the fixed frame (100) and slidably connected to the longitudinal sliding rail (704); The longitudinal sliding screw (702) is threadedly connected to the longitudinal sliding slider (701); A longitudinal servo motor (703) is connected to the longitudinal slide rail (704), and the drive end of the longitudinal servo motor (703) is connected to the longitudinal screw (702) for transmission.

8. The rail grinding trolley according to claim 5 or 7, characterized in that, Also includes: The hood (900) is connected to the frame (500) and covers the outside of each component; Lighting device (910) provides illumination for the rail grinding trolley; The electrical control box (920) is connected to various electrical components.

9. The rail grinding trolley according to claim 5, characterized in that, The frame (500) is equipped with a lithium battery, which provides power to the rail grinding trolley.

10. The rail grinding trolley according to claim 5, characterized in that, The frame (500) is equipped with a dust removal mechanism, and the dust suction port of the dust removal mechanism is located at the grinding area of the grinding mechanism.