Turnout grinding device and rail surface refiner

Abstract

The utility model relates to a turnout grinding device and a rail surface refiner. The turnout grinding device comprises a connecting seat, the transmission assembly is arranged on the connecting base, the transmission assembly comprises a driving wheel, a driven wheel and a transmission belt, and the driving wheel and the driven wheel are sleeved with the transmission belt; the tensioning assembly is arranged on the connecting seat, the tensioning assembly comprises a tensioning wheel movably connected to the connecting seat, a rotating shaft of the tensioning wheel is parallel to a rotating shaft of the driving wheel, the tensioning wheel is located between the driving wheel and the driven wheel and located on the outer side of the transmission belt, and the tensioning wheel is located between the driving wheel and the driven wheel. The tensioning wheel abuts against the transmission belt in the direction perpendicular to the connecting line between the driving wheel and the driven wheel. The driving wheel, the driven wheel and the transmission belt are used for transmitting kinetic energy to the grinding wheel, the phenomenon that the grinding device is overloaded and broken due to the fact that the grinding wheel is stuck is avoided, and therefore the grinding device is protected.

Description

Technical Field

[0001] The utility model relates to the technical field of rail grinding machines, in particular to a turnout grinding device and a rail surface finishing grinder. Background Art

[0002] During the operation of the train, the rails will be subjected to the action and friction of the train wheels. After long-term operation, the rails will suffer damage such as wear, fatigue cracks and surface defects, which will affect the train's running speed and driving safety. Therefore, professionals need to use professional equipment to regularly grind the rails to eliminate the damage. The existing grinding equipment transmits the kinetic energy of the internal combustion engine to the grinding wheel through the meshing of multiple gears. The gears not only need to be lubricated regularly, but also because the rails in the turnout part of the rails where the train runs are narrow, the grinding equipment and the rails often get stuck in the grinding wheel, which may also cause the gears to collapse due to overload. The internal combustion engine will therefore be subjected to greater mechanical stress, causing mechanical damage to the internal combustion engine. Summary of the Invention

[0003] To this end, the technical problem to be solved by the present invention is to overcome the problem in the prior art that the grinding wheel of the grinding device is easily stuck by the rail, resulting in mechanical damage to the gears of the grinding equipment due to overload, and thus provide a turnout grinding device and a rail surface fine grinder, which utilize a driving wheel, a driven wheel and a transmission belt to transmit kinetic energy to the grinding wheel, thereby avoiding the phenomenon of overload and collapse of the grinding device due to the grinding wheel being stuck, thereby protecting the grinding device.

[0004] In order to solve the above technical problems, the utility model provides a turnout grinding device, which is applied to a lithium-ion rail surface fine grinder, comprising:

[0005] Connecting seat;

[0006] A transmission assembly is provided on the connecting seat, wherein the transmission mechanism includes a driving wheel, a driven wheel and a transmission belt, and the transmission belt is sleeved on the outside of the driving wheel and the driven wheel;

[0007] A tensioning assembly is arranged on the connecting seat, and the tensioning assembly includes a tensioning pulley movably connected to the connecting seat, and the rotating axis of the tensioning pulley is parallel to the rotating axis of the driving pulley, wherein the tensioning pulley is located between the driving pulley and the driven pulley, and the tensioning pulley is located on the outside of the transmission belt, and the tensioning pulley abuts the transmission belt along a direction perpendicular to the connecting line between the driving pulley and the driven pulley.

[0008] In one embodiment of the present invention, a grinding motor is further provided on the connecting seat, and an output end of the grinding motor is connected to the driving wheel.

[0009] In one embodiment of the present invention, the connecting seat is configured as a housing, and the transmission assembly is located inside the housing.

[0010] In one embodiment of the present invention, the driven wheel is located at one end of the connecting seat.

[0011] In one embodiment of the present invention, it further includes a grinding wheel and a semicircular grinding wheel cover, half of the grinding wheel cover is located inside the grinding wheel cover, the driven wheel is coaxially connected to the grinding wheel, and the grinding wheel cover is connected to the connecting seat.

[0012] In one embodiment of the present invention, it further comprises two semicircular fixing clips that are connected to each other, and the two semicircular fixing clips are detachably connected, wherein one of the semicircular fixing clips is connected to the connecting seat.

[0013] In one embodiment of the present invention, a circular fixing clamp that can be detachably connected to the connecting seat is further included, and the circular fixing clamp is configured as a cylindrical structure, and the circular fixing clamp is coaxially arranged with the semicircular fixing clamp.

[0014] In one embodiment of the present invention, the connecting seat is provided with a first connecting plate, and the circular fixing clamp is provided with a second connecting plate, and the first connecting plate and the second connecting plate are detachably connected.

[0015] In one embodiment of the present invention, the opposite ends of the first connecting plate are bent on the same side to form two sliding grooves, the opposite ends of the second connecting plate are respectively inserted into the two sliding grooves, and the first connecting plate is also provided with a limit block, which abuts against the top of the second connecting plate.

[0016] In one embodiment of the present invention, two ends of the circular fixing clamp along its circumference extend outward to form two parallel third connecting plates, and the two third connecting plates are arranged opposite to the through hole.

[0017] In order to solve the above problems, a rail surface finishing machine is further provided, which includes the above-mentioned switch grinding device. The rail surface finishing machine is provided with a lifting shaft, and the circular fixing clamp and the semicircular fixing clamp both clamp the lifting shaft.

[0018] The above technical solution of the utility model has the following beneficial effects compared with the prior art:

[0019] The turnout grinding device described in the utility model utilizes a driving wheel, a driven wheel and a transmission belt to transmit kinetic energy to the grinding wheel. When the grinding wheel is stuck between the rail and the grinding device, the transmission belt can slide and continue to transmit power, thereby avoiding the phenomenon of overload and collapse of the grinding device and protecting the grinding device. The tension of the transmission belt is flexibly adjusted by the tensioning wheel to prevent the transmission belt from slipping on the driving wheel and the driven wheel, thereby improving the stability of the power transmission of the transmission belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to make the content of the utility model easier to understand, the utility model is further described in detail below based on the specific embodiments of the utility model and in conjunction with the accompanying drawings, wherein

[0021] Figure 1 This is a schematic structural diagram of a turnout grinding device in a preferred embodiment of the present utility model;

[0022] Figure 2 for Figure 1 The structural diagram of the exploded view of the turnout grinding device shown;

[0023] Figure 3 for Figure 1 A schematic structural diagram of the circular fixing clip shown;

[0024] Figure 4 for Figure 1 The structural diagram of the first connecting plate is shown

[0025] Explanation of the reference numerals in the accompanying drawings in the specification: 1. Connecting seat; 11. Connecting arm; 12. First connecting plate; 13. Limiting block; 15. Side plate; 16. Trough body; 17. Slide groove; 18. Screw; 2. Driving wheel; 21. Transmission belt; 22. Rotating shaft; 23. Driven wheel; 3. Tensioning wheel; 4. Grinding motor; 5. Semicircular fixing clamp; 51. Semicircular fixing clamp; 53. Screw; 6. Grinding wheel; 7. Grinding wheel cover; 8. Control cabinet; 9. Circular fixing clamp; 91. Second connecting plate; 92. Third connecting plate; 93. Third connecting plate. DETAILED DESCRIPTION

[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it. However, the embodiments are not intended to limit the present invention. Example

[0027] Reference Figure 1 and 2 As shown, in one embodiment of the present utility model, a turnout grinding device is disclosed, which is applied to a lithium-ion rail surface fine grinder to complete the grinding of rails, especially rails at turns. The turnout grinding device includes:

[0028] Connecting seat 1, its supporting function;

[0029] A transmission assembly is provided on the connecting seat 1. The transmission mechanism includes a driving wheel 2, a driven wheel 23 and a transmission belt 21. The driven wheel 23 is located directly below the driving wheel 2. The transmission belt 21 is sleeved on the driving wheel 2 and the driven wheel 23. The driving wheel 2 drives the driven wheel 23 to rotate through the transmission belt 21, and is used to transmit the power source to the grinding wheel 6. The surface of the transmission belt 21 is smooth. When the grinding wheel is stuck by the rail or the connecting seat 1, the transmission belt 21 can slip relative to the driven wheel 23 and the driving wheel 2, and the driving wheel 2 continues to rotate, thereby avoiding the phenomenon of the driving wheel 2 and the power source equipment driving the driving wheel 2 collapsing due to overload;

[0030] A tensioning assembly is provided on the connecting seat 1, and the tensioning assembly includes a tensioning pulley 3 movably connected to the connecting seat 1. It can be understood that the tensioning pulley 3 can move on the connecting seat 1, and the rotating axis of the tensioning pulley 3 is parallel to the rotating axis of the driving pulley 2, wherein the tensioning pulley 3 is located between the driving pulley 2 and the driven pulley 23, and the tensioning pulley 3 is located on the outside of the transmission belt 21, and the moving direction of the tensioning pulley 3 is along a line perpendicular to the connecting line between the driving pulley 2 and the driven pulley 23, and the tensioning pulley 3 abuts against the transmission belt 21. The tensioning pulley 3 adjusts the contact force between it and the transmission belt 21 by moving, thereby adjusting the tension of the transmission belt 21 to prevent the transmission belt 21 from slipping.

[0031] Reference Figure 1 As shown, it also includes a grinding motor 4 arranged on the connecting seat 1. The rotating shaft of the grinding motor 4 is connected to the driving wheel 2 and is used to drive the driving wheel 2 to rotate. The advantages of the grinding motor 4 are low noise and high energy conversion rate, fast acceleration and stable speed.

[0032] Reference Figure 2 As shown, in order to further prevent dust and foreign matter from being drawn into the transmission belt 21 and to simplify the structure of the grinding device, the connecting seat 1 is configured as a closed shell encapsulated by a trough body 16 and a side plate 15, and the transmission assembly is located inside the shell.

[0033] Reference Figure 2 As shown, the driven wheel 23 is located at one end of the connecting seat 1, the purpose of which is to ensure that the driven wheel 23 and the grinding wheel can extend into the narrow switch to grind the rails without touching the intact rails around them, and to avoid interference between the connecting seat 1 and the rails.

[0034] Reference Figure 1As shown, it also includes a grinding wheel 6 and a semicircular grinding wheel cover 7, half of the grinding wheel 6 is located in the grinding wheel cover 7, and the grinding wheel cover 7 is located above the grinding wheel 6, the driven wheel 23 is coaxially connected to the grinding wheel 6, and the grinding wheel cover 7 is connected to the connecting seat 1. Specifically, the driven wheel 23 is coaxially connected to the rotating shaft 22, and the rotating shaft 22 extends out of the shell and is coaxially connected to the grinding wheel 6. The driven wheel 23 transmits power to the grinding wheel 6 through the rotating shaft 22, and the high-speed rotating grinding wheel 6 grinds the rail.

[0035] Reference Figure 1 As shown, in order to fix the upper part of the turnout grinding device to the lifting shaft of the fine grinder, it also includes two semicircular fixing clamps 5 / 51 that are docked with each other, and the two semicircular fixing clamps 5 / 51 are connected by screws. It can be understood that the two semicircular fixing clamps 5 / 51 form a closed ring after docking, wherein one of the semicircular fixing clamps 51 is connected to the upper part of the connecting seat 1 by a screw 53; due to the further lifting shaft, it also includes a connecting arm 11, one end of the connecting arm 11 is connected to the upper part of the connecting seat 1, and the other end of the connecting arm 11 is connected to one of the semicircular fixing clamps 51 by a screw.

[0036] Reference Figure 1 As shown, in order to stably connect the lower half of the grinding device to the lifting shaft of the fine grinder, a circular fixing clamp 9 is also included. The circular fixing clamp 9 is arranged as a cylindrical structure. The connecting portion of the circular fixing clamp 9 is used to be able to detachably connect the lower part of the connecting seat 1, and the circular fixing clamp 9 is pre-fixed and sleeved on the outside of the lifting shaft of the fine grinder. During assembly, the connecting seat 1 can be connected to the connecting portion. The circular fixing clamp 9 is coaxially arranged with the semicircular fixing clamp 5 / 51 so that the semicircular fixing clamp 5 / 51 can also be sleeved on the outside of the lifting shaft.

[0037] Reference Figure 3 As shown, in order to improve the installation accuracy, the connecting seat 1 is provided with a first connecting plate 12, and the connecting part of the circular fixing clamp 9 is set as a second connecting plate 91. The first connecting plate 12 is connected to one side of the second connecting plate 91 by screws. When the first connecting plate 12 and the second connecting plate 91 are parallel, the semicircular fixing clamp 5 / 51 is coaxial with the lifting axis.

[0038] Reference Figure 1 and 4 As shown, in order to facilitate screwing, the opposite ends of the first connecting plate 12 are bent on the same side to form two sliding grooves 17. During assembly, the opposite ends of the second connecting plate 91 are inserted into the two sliding grooves 17 from bottom to top, and the first connecting plate 12 is also provided with a limit block 13. When the limit block 13 is just in contact with the top of the second connecting plate 91, the positions of the first connecting plate 12 and the second connecting plate 91 are matched.

[0039] Reference Figure 3 As shown, in order to fix the circular fixing clamp 9 on the lifting shaft, the two ends of the circular fixing clamp 9 along its circumference extend outward from the outside of the circular fixing clamp 9 to form two parallel third connecting plates 92 / 93. The two third connecting plates 92 / 93 are connected by bolts. The distance between the two third connecting plates 92 / 93 can be changed by tightening the bolts, thereby changing the contact force between the circular fixing clamp 9 and the lifting shaft.

[0040] Furthermore, the tensioning assembly also includes a tensioning plate fixedly connected to the tensioning wheel 3, and the tensioning plate is slidably connected to the connecting seat 1 in a direction perpendicular to the transmission belt 21. Specifically, the tensioning plate is provided with a strip hole, and the connecting seat 1 is provided with a screw hole corresponding to the strip hole. A screw with a flat position is passed through the strip hole and threadedly connected to the screw hole to press the tensioning plate onto the connecting seat. The flat position abuts against the inner wall of the strip hole to ensure that the tensioning plate does not rotate.

[0041] Furthermore, the system further comprises a control cabinet 8 provided on the housing of the grinding motor 4 , wherein the control cabinet 8 is provided with a controller for controlling the start and stop of the grinding motor 4 . Example

[0042] In order to solve the above problems, a rail surface grinder is also provided, which is arranged on the rail and can move along the rail. The rail surface grinder includes the above-mentioned switch grinding device. The rail surface grinder is provided with a lifting shaft, and the circular fixing clamp 9 and the semicircular fixing clamp 5 / 51 both clamp the lifting shaft.

[0043] The working principle of the turnout grinding device of the utility model is:

[0044] The circular fixing clamp 9 is fixedly sleeved on the lifting shaft of the fine grinder in advance. When assembling the turnout grinding device, first insert the first connecting plate 12 on one side of the second connecting plate 91, and the limit block 13 abuts against the top of the second connecting plate 91, and then fix the first connecting plate 12 and the second connecting plate 91 with screws 18, and then put the two semicircular fixing clamps 5 / 51 on the outside of the lifting shaft and fix them. At this point, the turnout grinding device is installed. Then, the grinding motor 4 is started, the grinding wheel 6 starts to rotate, and the fine grinder is assembled. The lifting shaft of the grinder descends, and the grinding wheel 6 is extended between the two rails at the switch for grinding. When the grinding wheel 6 is stuck by the rail, the transmission belt 21 slips relative to the driven wheel 23 and the driving wheel 2, and the driving wheel 2 continues to rotate to avoid collapse due to overload. When the switch grinding device needs to be unloaded, first turn the four screws 18 to loosen the first connecting plate 12, then turn the screw 53 to loosen the connecting arm 11, and then pull the entire switch grinding device upward until the first connecting plate 12 is pulled away from the second connecting plate 91 to complete the unloading.

[0045] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A turnout grinding device, characterized in that: include, Connecting seat; A transmission assembly is provided on the connecting seat, the transmission assembly comprising a driving wheel, a driven wheel and a transmission belt, the transmission belt being sleeved on the driving wheel and the driven wheel; A tensioning assembly is arranged on the connecting seat, and the tensioning assembly includes a tensioning pulley movably connected to the connecting seat, and the rotating axis of the tensioning pulley is parallel to the rotating axis of the driving pulley, wherein the tensioning pulley is located between the driving pulley and the driven pulley, and the tensioning pulley is located on the outside of the transmission belt, and the tensioning pulley abuts the transmission belt along a direction perpendicular to the connecting line between the driving pulley and the driven pulley.

2. A turnout grinding device according to claim 1, characterized in that: It also includes a grinding motor arranged on the connecting seat, and the output end of the grinding motor is connected to the driving wheel.

3. A turnout grinding device according to claim 1, characterized in that: The connecting seat is configured as a shell, and the transmission assembly is located inside the shell.

4. A turnout grinding device according to claim 1, characterized in that: The driven wheel is located at one end of the connecting seat.

5. A turnout grinding device according to claim 4, characterized in that: It also includes a grinding wheel and a semicircular grinding wheel cover, half of the grinding wheel cover is located inside the grinding wheel cover, the driven wheel is coaxially connected to the grinding wheel, and the grinding wheel cover is connected to the connecting seat.

6. A turnout grinding device according to claim 1, characterized in that: It also includes two semicircular fixing clips that are connected to each other, and the two semicircular fixing clips can be detachably connected, wherein one of the semicircular fixing clips is connected to the connecting seat.

7. A turnout grinding device according to claim 6, characterized in that: It also includes a circular fixing clamp that can be detachably connected to the connecting seat, and the circular fixing clamp is configured as a cylindrical structure, and the circular fixing clamp is coaxially arranged with the semicircular fixing clamp.

8. A turnout grinding device according to claim 7, characterized in that: The connecting seat is provided with a first connecting plate, and the circular fixing clamp is provided with a second connecting plate. The first connecting plate and the second connecting plate can be detachably connected.

9. A turnout grinding device according to claim 8, characterized in that: The opposite ends of the first connecting plate are bent on the same side to form two sliding grooves, and the opposite ends of the second connecting plate are respectively inserted into the two sliding grooves, and the first connecting plate is also provided with a limit block, which abuts against the top of the second connecting plate.

10. A rail surface finishing machine, comprising a turnout grinding device according to any one of claims 1 to 9, characterized in that: The rail surface finishing machine is provided with a lifting shaft, and the circular fixing clamp and the semicircular fixing clamp both clamp the lifting shaft.

Images