Steel rail grinding machine

Abstract

The utility model relates to the technical field of steel rail maintenance, and discloses a steel rail grinding machine which comprises a supporting plate, a C-shaped plate is fixedly connected to the upper surface of the supporting plate, a supporting block is fixedly connected to the upper surface of the C-shaped plate, a supporting rod is rotationally connected to the outer portion of the supporting block, and grinding mechanisms are arranged at the left end and the right end of the lower surface of the supporting plate. A connecting plate is mounted below the supporting plate and located between the two grinding mechanisms, and a plurality of balls are connected to the lower surface of the connecting plate in an embedded and rolling mode. The supporting plate is placed on the rail head of the steel rail, the telescopic cylinder is started to drive the grinding roller to be attached to the rail web of the steel rail, the motor is started to drive the grinding roller to rotate, the whole grinding machine is dragged through the supporting rod, and then the steel rail can be continuously ground; the balls on the lower surface of the connecting plate prevent the supporting plate from making direct contact with the steel rail, friction is reduced, and a worker can easily drag the whole grinding machine. The pawl is attached to the ratchet wheel, so that the connecting bolt does not loosen.

Description

Technical Field

[0001] This utility model relates to the field of rail maintenance technology, specifically a rail grinding machine. Background Technology

[0002] Steel rails are the main components of railway tracks. Their function is to guide the wheels of locomotives and rolling stock forward, bear the enormous pressure of the wheels, and transmit it to the sleepers. Steel rails must provide the wheels with a continuous, smooth, and least resistant rolling surface. In electrified railways or automatic block sections, steel rails can also serve as track circuits.

[0003] During rail maintenance, grinding equipment is needed to remove rust and wear from the rail surface. Existing grinding methods for rail maintenance typically involve large, automated rail grinding machines when grinding the entire rail. However, when maintaining a section of rail, workers usually grind the surface sequentially using the grinding machine, which is time-consuming, labor-intensive, and inefficient. Furthermore, grinding the sides of the rail is more difficult because the top and bottom of the rail protrude, creating a concave surface.

[0004] Chinese patent discloses a grinding device for rail maintenance (authorization announcement number CN221626708U). This patented technology, through the setting of a support component, can achieve the effect of connecting and supporting the adjustment component and the connecting grinding mechanism. Through the setting of the adjustment component, the adjustment component works with the support component to achieve the effect of supporting and adjusting the connecting grinding mechanism, thereby allowing the connecting grinding mechanism to contact the two sides of the rail. Through the setting of the connecting grinding mechanism, the connecting grinding mechanism can facilitate the grinding of the two sides of the rail. Thus, the connecting grinding mechanism, in conjunction with the support adjustment mechanism, can facilitate the grinding of the two sides of the rail and improve efficiency.

[0005] However, it has certain drawbacks: its connecting seat is in direct contact with the rail head, resulting in greater friction. Therefore, when dragging the entire device, the workers will feel very strenuous, which will not only reduce work efficiency but also increase the workers' physical exertion and fatigue. Furthermore, the direct contact between the connecting seat and the rail head will cause rapid wear on the surface of the connecting seat and the rail. Utility Model Content

[0006] The purpose of this invention is to provide a rail grinding machine to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A rail grinding machine includes a support plate, a C-shaped plate fixedly connected to the upper surface of the support plate, a support block fixedly connected to the upper surface of the C-shaped plate, a support rod rotatably connected to the outside of the support block, and grinding mechanisms provided at both ends of the lower surface of the support plate.

[0009] A connecting plate is installed below the support plate between the two grinding mechanisms. Multiple ball bearings are embedded in the lower surface of the connecting plate, and connecting rods are fixed to the four corners of the upper surface of the connecting plate. A connecting bolt is threaded at the center of the upper surface of the connecting plate, and a ratchet is fixed to the outside of the connecting bolt. A positioning mechanism is provided on the upper surface of the support plate inside the C-shaped plate.

[0010] As a further embodiment of this utility model: the grinding mechanism includes a fixed plate, a telescopic cylinder is fixedly connected to the side surface of the fixed plate away from the support plate, an L-shaped plate is fixedly connected to the telescopic end of the telescopic cylinder, a motor is fixedly connected to the upper surface of the L-shaped plate, and a grinding roller is fixedly connected to the output end of the motor.

[0011] As a further embodiment of this utility model: the positioning mechanism includes a spring, a positioning block is fixedly connected to the front end of the spring, and a pawl is fixedly connected to the rear end of the spring, and a positioning rod is rotatably connected to the right end of the pawl.

[0012] As a further improvement of this utility model, both the connecting rod and the connecting bolt can move through the upper surface of the support plate.

[0013] As a further improvement of this utility model, the upper end of the fixing plate is fixed to the lower surface of the support plate.

[0014] As a further embodiment of this utility model: the pawl is attached to the ratchet, and the lower ends of the positioning block and the positioning rod are both fixed to the upper surface of the support plate.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This utility model involves placing a support plate on the rail head, opening a telescopic cylinder to drive the grinding roller to fit against the rail web, turning on a motor to drive the grinding roller to rotate, and dragging the entire grinding machine through a support rod to continuously grind the rail.

[0017] 2. This utility model avoids direct contact between the support plate and the rail by using ball bearings on the lower surface of the connecting plate, reducing friction and allowing workers to easily drag the entire grinding machine; the pawl engages with the ratchet, preventing the connecting bolt from rotating counterclockwise, thus preventing it from loosening and ensuring the stability of the connecting plate installation. Attached Figure Description

[0018] Figure 1This is a schematic diagram of the structure of a rail grinding machine;

[0019] Figure 2 This is a schematic diagram of the grinding mechanism in a rail grinding machine.

[0020] Figure 3 This is a schematic diagram of the connecting plate in a rail grinding machine.

[0021] Figure 4 This is a schematic diagram of the positioning mechanism in a rail grinding machine.

[0022] In the diagram: 1. Support plate; 2. C-shaped plate; 3. Support block; 4. Support rod; 5. Grinding mechanism; 6. Fixing plate; 7. Telescopic cylinder; 8. L-shaped plate; 9. Motor; 10. Grinding roller; 11. Connecting plate; 12. Ball bearing; 13. Connecting rod; 14. Connecting bolt; 15. Ratchet; 16. Positioning mechanism; 17. Spring; 18. Positioning block; 19. Pawl; 20. Positioning rod. Detailed Implementation

[0023] Please see Figure 1 and Figure 2 In this embodiment of the utility model, a rail grinding machine includes a support plate 1, a C-shaped plate 2 fixedly connected to the upper surface of the support plate 1, a support block 3 fixedly connected to the upper surface of the C-shaped plate 2, a support rod 4 rotatably connected to the outside of the support block 3, and grinding mechanisms 5 provided at both ends of the lower surface of the support plate 1. The grinding mechanism 5 includes a fixing plate 6, the upper end of the fixing plate 6 fixedly connected to the lower surface of the support plate 1, a telescopic cylinder 7 fixedly connected to the side surface of the fixing plate 6 away from the support plate 1, an L-shaped plate 8 fixedly connected to the telescopic end of the telescopic cylinder 7, a motor 9 fixedly connected to the upper surface of the L-shaped plate 8, and a grinding roller 10 fixedly connected to the output end of the motor 9.

[0024] When the support plate 1 is placed on the rail head, the two grinding rollers 10 are facing the two sides of the rail web.

[0025] The telescopic cylinder 7 is preferably an electric cylinder, which, after extending, drives the grinding roller 10 to fit against the rail web.

[0026] Motor 9 is used to drive the grinding roller 10 to rotate and grind the rail.

[0027] Support rod 4 makes it easy for workers to move the entire grinding machine.

[0028] exist Figure 1 , Figure 3 and Figure 4In the middle: A connecting plate 11 is installed below the support plate 1 between the two grinding mechanisms 5. Multiple balls 12 are embedded in the lower surface of the connecting plate 11 and are connected to the four corners of the upper surface of the connecting plate 11. A connecting bolt 14 is threaded at the center of the upper surface of the connecting plate 11. Both the connecting rod 13 and the connecting bolt 14 move through the upper surface of the support plate 1. A ratchet 15 is fixed to the outside of the connecting bolt 14. A positioning mechanism 16 is set on the upper surface of the support plate 1 inside the C-shaped plate 2. The positioning mechanism 16 includes a spring 17. A positioning block 18 is fixed to the front end of the spring 17 and a pawl 19 is fixed to the rear end of the spring 17. The pawl 19 is attached to the ratchet 15. A positioning rod 20 is rotatably connected to the right end of the pawl 19. The lower ends of the positioning block 18 and the positioning rod 20 are fixed to the upper surface of the support plate 1.

[0029] When the ball bearing 12 is in contact with the upper surface of the rail head, the two grinding rollers 10 are directly opposite the two sides of the rail web.

[0030] The ball bearing 12 prevents the support plate 1 from directly contacting the rail, reducing friction and allowing the operator to easily drag the entire grinding machine.

[0031] The design of the connecting bolt 14 facilitates the replacement of the entire connecting plate 11 after the ball bearing 12 wears out;

[0032] The connecting rod 13 improves the stability of the connecting plate 11 during installation;

[0033] The ratchet 15 is welded to the outside of the connecting bolt 14;

[0034] Pawl 19 engages with ratchet 15, allowing bolt 14 to rotate clockwise normally but not counterclockwise, thus preventing loosening; pulling pawl 19 away from ratchet 15 allows bolt 14 to rotate counterclockwise.

[0035] The working principle of this utility model is as follows: When in use, the operator places the entire grinding machine on the rail head, so that the ball bearings 12 fit against the rail head. Then, the telescopic cylinder 7 is activated to drive the grinding roller 10 to fit against the rail web. Finally, the motor 9 is turned on to drive the grinding roller 10 to rotate for grinding. The operator moves the entire grinding machine on the rail by supporting the rod 4, thereby performing continuous grinding. When the ball bearings 12 are severely worn, the operator can pull the pawl 19 away from the ratchet 15, and then turn the connecting bolt 14 counterclockwise to remove it. The connecting plate 11 can be removed by moving it downwards, making it easy to replace the connecting plate 11 with new ball bearings 12.

[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

[0037] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A rail grinding machine, comprising a support plate (1), a C-shaped plate (2) fixedly connected to the upper surface of the support plate (1), a support block (3) fixedly connected to the upper surface of the C-shaped plate (2), a support rod (4) rotatably connected to the outside of the support block (3), and grinding mechanisms (5) provided at both ends of the lower surface of the support plate (1). Its features are, A connecting plate (11) is installed below the support plate (1) between the two grinding mechanisms (5). Multiple balls (12) are embedded in the lower surface of the connecting plate (11) and are connected to the four corners of the upper surface of the connecting plate (11). A connecting bolt (14) is threaded at the center of the upper surface of the connecting plate (11). A ratchet (15) is fixed to the outside of the connecting bolt (14). A positioning mechanism (16) is provided on the upper surface of the support plate (1) inside the C-shaped plate (2).

2. The rail grinding machine according to claim 1, characterized in that, The grinding mechanism (5) includes a fixed plate (6), a telescopic cylinder (7) is fixedly connected to the side surface of the fixed plate (6) away from the support plate (1), an L-shaped plate (8) is fixedly connected to the telescopic end of the telescopic cylinder (7), a motor (9) is fixedly connected to the upper surface of the L-shaped plate (8), and a grinding roller (10) is fixedly connected to the output end of the motor (9).

3. The rail grinding machine according to claim 1, characterized in that, The positioning mechanism (16) includes a spring (17), with a positioning block (18) fixedly connected to the front end of the spring (17) and a pawl (19) fixedly connected to the rear end of the spring (17). A positioning rod (20) is rotatably connected to the right end of the pawl (19).

4. A rail grinding machine according to claim 1, characterized in that, Both the connecting rod (13) and the connecting bolt (14) extend through the upper surface of the support plate (1).

5. A rail grinding machine according to claim 2, characterized in that, The upper end of the fixing plate (6) is fixed to the lower surface of the support plate (1).

6. A rail grinding machine according to claim 3, characterized in that, The pawl (19) is attached to the ratchet (15), and the lower ends of the positioning block (18) and the positioning rod (20) are fixed to the upper surface of the support plate (1).

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