An auxiliary device for rail weld grinding equipment and a rail grinding machine

Abstract

This invention relates to an auxiliary device for rail weld grinding equipment and a rail grinding machine, comprising: a clamping assembly and a normal pressure assembly. The clamping assembly includes jaws and an arc-shaped plate. The jaws clamp the two sides of the rail, and the arc-shaped plate is disposed on one side of the jaws. A support rod is disposed on the side of the arc-shaped plate near the jaws, and the jaws are connected to the support rod. The side of the arc-shaped plate away from the jaws is bent to form a flange. The normal pressure assembly includes a guide rod and an elastic element. One end of the guide rod is provided with a rolling part, and the other end of the guide rod is provided with a limiting post. An elastic element is sleeved between the rolling part and the limiting post. One end of the rolling part abuts against the flange. This invention utilizes the extensibility of the elastic element to transmit the tension force to the rotating shaft, counteracting the normal force generated by the grinding wheel during the grinding process, thereby ensuring that the grinding wheel on the rotating shaft is in close contact with the rail, avoiding the grinding wheel deflection during operation, and improving the grinding quality.

Description

Technical Field

[0001] This invention relates to the field of track grinding equipment technology, and in particular to an auxiliary device for track weld grinding equipment and a track grinding machine. Background Technology

[0002] With the increasing frequency of train service, various defects develop on the tracks during operation, jeopardizing train safety. When a section of track no longer meets the required standards, it needs to be replaced. This replacement process involves welding the old and new tracks together, resulting in weld beads. These weld beads must be ground to ensure the smoothness of the track. Grinding of the weld joints is typically done using a track profile grinding machine. Its working principle involves a drive source that propels the grinding wheel to perform oscillation, feed, and reciprocating motions.

[0003] Existing track-following grinding machines mostly use internal combustion engines as power sources, resulting in high levels of air pollution, noise, and vibration in the operating environment. In contrast, lithium battery grinding produces no air pollution and generates less noise. Current small grinding equipment requires manual handling before being placed on the track, making it quite sensitive to its weight. The relatively low weight can cause the equipment to be lifted up during operation due to the interaction forces of grinding, leading to blade deflection and compromising grinding quality. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the problem that the grinding equipment in the prior art has a small mass, which causes the tool to deflect during the grinding process, resulting in poor grinding quality.

[0005] To solve the above-mentioned technical problems, the present invention provides an auxiliary device for a track weld grinding equipment, comprising:

[0006] A clamping assembly includes a jaw and an arc-shaped plate. The jaw clamps both sides of a track, and the arc-shaped plate is disposed on one side of the jaw. A support rod is disposed on the side of the arc-shaped plate near the jaw, and the jaw is connected to the support rod. The side of the arc-shaped plate away from the jaw is bent to form a flange.

[0007] A normal pressure assembly includes a guide rod and an elastic element. One end of the guide rod is provided with a rolling part, and the other end of the guide rod is provided with a limiting post. The elastic element is sleeved between the rolling part and the limiting post. One end of the rolling part abuts against the flange.

[0008] In one embodiment of the present invention, a baffle is provided at the end of the support rod away from the arc plate, and the gripper is engaged between the baffle and the arc plate.

[0009] In one embodiment of the present invention, a limiting plate is further provided between the baffle and the arc-shaped plate.

[0010] In one embodiment of the present invention, the gripper includes connecting rods, connecting blocks, hooks, and pressure rods. One end of the two connecting rods is hinged to form a first hinge point. One end of the connecting block is hinged to the first hinge point, and the other end of the connecting block is hinged to the pressure rod to form a second hinge point. The end of the pressure rod near the second hinge point is hinged to the support rod. The hooks are respectively hinged to the ends of the two connecting rods away from the first hinge point, and the two sides of the middle portion of the two hooks are respectively hinged to the arc-shaped plate and the baffle.

[0011] In one embodiment of the invention, a handle is provided at the end of the pressure rod away from the second hinge point.

[0012] In one embodiment of the present invention, the rolling part includes a mounting base and a ball bearing roller. The mounting base is connected to the guide rod, the ball bearing roller is connected to the mounting base, and the end of the ball bearing roller with a ball abuts against the flange.

[0013] In one embodiment of the present invention, the rolling part includes a retainer and a bearing. The retainer is connected to the end of the guide rod, the bearing is engaged between the retainers and connected to the retainer pin, and the outer ring of the bearing abuts against the flange.

[0014] In one embodiment of the present invention, a limiting nut is sleeved on the limiting post.

[0015] A track grinding machine includes an auxiliary device for the track weld grinding equipment and a swing angle assembly. The swing angle assembly includes a motor and a rotating shaft. The output end of the motor and the rotating shaft are engaged by gears. The rotating shaft is provided with a plurality of grinding wheels along the axial direction. The end of the rotating shaft is provided with a mounting hole along the radial direction. The guide rod passes through the mounting hole. The elastic element is engaged between the rolling part and the rotating shaft.

[0016] In one embodiment of the present invention, the diameter of the mounting hole is equal to the diameter of the guide rod.

[0017] The technical solution of the present invention has the following advantages compared with the prior art:

[0018] The auxiliary device and track grinding machine of the track weld grinding equipment described in this invention utilize the extensibility of elastic elements to transmit tension to the rotating shaft, thereby counteracting the normal force generated by the grinding wheel during the grinding process. This ensures that the grinding wheel on the rotating shaft is in close contact with the track, preventing the grinding wheel from deflecting during operation and improving the grinding quality. Attached Figure Description

[0019] To make the content of this invention easier to understand, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein...

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 for Figure 1 Enlarged view of the structure at point A in the middle;

[0022] Figure 3 for Figure 2 A schematic diagram of the structure of the clamping component;

[0023] Figure 4 for Figure 3 Schematic diagram of the middle gripper;

[0024] Figure 5 for Figure 2 Schematic diagram of the structure of the center-to-center pressurization assembly;

[0025] Figure 6 for Figure 5 A schematic diagram of the structure of one embodiment of the rolling part;

[0026] Figure 7 for Figure 5 A structural schematic diagram of another embodiment of the rolling part;

[0027] Explanation of reference numerals in the accompanying drawings: 1. Clamping assembly; 2. Normal pressure assembly; 3. Swing angle assembly; 4. Track; 11. Gripper; 12. Arc plate; 13. Support rod; 14. Baffle; 15. Limiting plate; 21. Guide rod; 22. Elastic element; 23. Rolling part; 24. Limiting post; 25. Limiting nut; 31. Motor; 32. Rotating shaft; 33. Grinding wheel; 111. Pressure rod; 112. Connecting block; 113. Connecting rod; 114. Hook; 115. Handle; 116. First hinge point; 117. Second hinge point; 121. Flanged edge; 231. Mounting base; 232. Steel ball roller; 233. Card holder; 234. Bearing; 321. Mounting hole. Detailed Implementation

[0028] 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 and implement the present invention. However, the embodiments described are not intended to limit the present invention.

[0029] Reference Figure 1-7 As shown, the present invention discloses an auxiliary device for a rail weld grinding equipment, comprising:

[0030] The clamping assembly 1 includes a jaw 11 and an arc plate 12. The jaw 11 clamps both sides of the track 4. The arc plate 12 is disposed on one side of the jaw 11. A support rod 13 is disposed on the side of the arc plate 12 closest to the jaw 11. The jaw 11 is connected to the support rod 13. The side of the arc plate 12 away from the jaw 11 is bent to form a flange 121.

[0031] As can be seen, the clamping assembly 1 mainly consists of two parts: a jaw 11 for clamping the track 4 and an arc plate 12. The arc plate 12 is connected to the jaw 11 by a support rod 13, thereby fixing the arc plate 12 onto the track 4. The side with the flange 121 faces the track 4 grinding machine.

[0032] The normal pressure assembly 2 includes a guide rod 21 and an elastic element 22. One end of the guide rod 21 is provided with a rolling part 23, and the other end of the guide rod 21 is provided with a limiting post 24. The elastic element 22 is sleeved between the rolling part 23 and the limiting post 24. One end of the rolling part 23 abuts against the flange 121.

[0033] A track grinding machine includes an auxiliary device for the track weld grinding equipment and a swing angle assembly 3. The swing angle assembly 3 includes a motor 31 and a rotating shaft 32. The output end of the motor 31 is engaged with the rotating shaft 32 by gears. The rotating shaft 32 is provided with a plurality of grinding wheels 33 along the axial direction. The end of the rotating shaft 32 is provided with a mounting hole 321 along the radial direction. A guide rod 21 passes through the mounting hole 321. An elastic element 22 is engaged between the rolling part 23 and the rotating shaft.

[0034] It can be imagined that the track 4 grinding machine generates power through the rotation of motor 31 during operation. Motor 31 is connected to the rotating shaft 32 through gears, which drives the rotating shaft 32 to make circular reciprocating motion around track 4. The swinging motion drives the grinding wheel 33 to grind the weld beads on the surface of the track 4 weld clean.

[0035] The auxiliary device in this invention is to ensure that the grinding wheel 33 can fit tightly against the surface of the track 4, thereby improving grinding efficiency and grinding quality. Specifically, the gripper 11 in the clamping assembly 1 is connected to the arc plate 12. After the gripper 11 is clamped with the track 4, the position of the arc plate 12 is limited. The normal pressure assembly 2 on the other side of the arc plate 12 is connected with the rotating shaft 32. Specifically, one end of the guide rod 21 is inserted into the mounting hole 321 at the end of the rotating shaft 32. At this time, the elastic element 22 is stuck between the rolling part 23 and the rotating shaft 32. The guide rod 21 is prevented from falling out of the mounting hole 321 by the limiting rod at the bottom of the guide rod 21. The rolling part 23 at the other end of the guide rod 21 abuts against the flange 121 of the arc plate 12. The elastic element 22 in the guide rod 21 is compressed. One end of the elastic element 22 is subjected to the pressure of the arc plate 12. The elastic element 22 itself elongates and applies a reaction force to the rotating shaft 32, ensuring the distance between the rotating shaft 32 and the track 4, and pressing the grinding wheel 33 tightly against the surface of the track 4. The function of the rolling part 23 is to transform the movement between the guide rod 21 and the flange 121 into rolling friction. The gripper 11 and the arc plate 12 are connected by the support rod 13. The rotation of the rotating shaft 32 drives the rolling part 23 to move on the flange 121. When the rotating shaft 32 rotates to any position, it drives the rolling part 23 to rotate by the same angle. The elastic element 22 transmits its own tension along the axial direction of the guide rod 21 to the rotating shaft.

[0036] The present invention utilizes the elasticity of the elastic element 22 to transmit the tension force to the rotating shaft 32, thereby counteracting the normal force generated by the grinding wheel 33 during the grinding process. This ensures that the grinding wheel 33 on the rotating shaft 32 is in close contact with the track 4, preventing the grinding wheel 33 from deflecting during operation and improving the grinding quality.

[0037] In actual operation, the track 4 grinder will experience a certain amount of displacement along the axial direction of track 4 due to vibration during the grinding process, causing the grinding wheel 33 to deviate from the specific grinding position and affecting the grinding quality. This invention addresses this by installing grippers 11 on both sides of the track 4 grinder. Specifically, the grippers 11 clamp onto both sides of the guide rail, restricting the position of the arc-shaped plate 12, and the rotating shaft 32 abuts against the arc-shaped plate 12, thus preventing the entire track 4 grinder from displacing along track 4 and further improving the grinding quality of the track 4 weld.

[0038] Furthermore, in order to ensure that the normal pressure assembly 2 can reciprocate stably within the flange 121 of the arc plate 12, the diameter of the mounting hole 321 is equal to the diameter of the guide rod 21, so as to avoid shaking caused by the size mismatch of the guide rod 21.

[0039] Furthermore, a baffle 14 is provided at the end of the support rod 13 away from the arc plate 12, and the gripper 11 is engaged between the baffle 14 and the arc plate 12; a limit plate 15 is also provided between the baffle 14 and the arc plate 12. The gripper 11 includes a connecting rod 113, a connecting block 112, a hook head 114, and a pressure rod 111. One end of the two connecting rods 113 is hinged to form a first hinge point 116, one end of the connecting block 112 is hinged to the first hinge point 116, and the other end of the connecting block 112 is hinged to the pressure rod 111 to form a second hinge point 117. The end of the pressure rod 111 near the second hinge point 117 is hinged to the support rod 13; hook heads 114 are respectively hinged to the ends of the two connecting rods 113 away from the first hinge point 116, and the two sides of the middle part of the two hook heads 114 are respectively hinged to the arc plate 12 and the baffle 14.

[0040] Specifically, the baffle 14 limits the movement of the gripper 11. Since the entire structure of the gripper 11 uses a multi-link 113 hinged structure, pressure is applied to the pressure rod 111 during use. The pressure rod 111 drives the connecting rod 113 to move, and the connecting rod 113 drives the two hooks 114 to form a clamp. It can be seen that the entire gripper 11 only forms a limit in the radial position of the track 4. As a preferred embodiment of the present invention, a limit plate 15 is also provided between the arc plate 12 and the baffle 14. Since the arc plate 12 and the gripper 11 are mainly connected by the support rod 13, in order to improve the stability of the arc plate 12 and prevent the arc plate 12 from moving during the movement of the normal pressure assembly 2, a limit plate 15 is provided.

[0041] Furthermore, a handle 115 is provided at the end of the pressure bar 111 away from the second hinge point 117. As a preferred embodiment of the present invention, the handle 115 is added to the end of the pressure bar 111 to improve the comfort of pressing down the entire gripper 11 and the overall aesthetics of the gripper 11.

[0042] Furthermore, as an embodiment of the present invention, the rolling part 23 includes a mounting base 231 and a ball bearing roller 232. The mounting base 231 is connected to the guide rod 21, the ball bearing roller 232 is connected to the mounting base 231, and the end of the ball bearing roller 232 with the ball bearing abuts against the flange 121.

[0043] Specifically, the function of the rolling part 23 is to transform the sliding friction between the guide rod 21 and the flange 121 into rolling friction, thereby reducing friction. In this embodiment, the structure of the rolling part 23 adopts the form of a steel ball roller 232. Specifically, the balls at the end of the steel ball roller 232 roll on the surface of the flange 121 to reduce friction and ensure the smoothness of the shaft rotation.

[0044] Furthermore, in another embodiment of the present invention, the rolling part 23 includes a retainer 233 and a bearing 234. The retainer 233 is connected to the end of the guide rod 21, the bearing 234 is engaged between the retainers 233 and connected to the retainer 233 pin, and the outer ring of the bearing 234 abuts against the flange 121.

[0045] In this embodiment, the rolling part 23 uses a bearing 234 instead of a steel ball roller 232, and the bearing 234 rolls on the surface of the flange 121. It should be noted that the installation direction of the bearing 234 should be consistent with the rolling direction of the shaft. Unlike the steel ball roller 232, the bearing 234 can withstand a larger load. As a preferred embodiment of the present invention, the bearing 234 is a deep groove ball bearing 234, which can withstand a larger radial load.

[0046] Furthermore, to prevent the limiting post 24 from falling off, a limiting nut 25 is fitted on the limiting post 24 to prevent the guide post from falling off from the mounting hole 321 of the rotating shaft 32, thus ensuring the stability of the movement of the entire normal pressure assembly 2.

[0047] In summary, this invention discloses an auxiliary device and a track grinding machine for grinding track welds. Its working principle is as follows: During operation, the track grinding machine generates power through the rotation of a motor 31. The motor 31 is connected to the rotating shaft 32 via gears, driving the rotating shaft 32 to reciprocate around the track 4. This reciprocating motion drives the grinding wheel 33 to clean the weld beads on the surface of the track 4 weld. The auxiliary device is installed on both sides of the rotating shaft 32. Specifically, the grippers 11 clamp the track 4 on both sides, simultaneously fixing the connected arc-shaped plate 12. One end of the rolling part 23 of the normal pressure assembly 2 abuts against the flange 121 of the arc-shaped plate 12, and the other end is connected to the rotating shaft 32. At this time, the elastic element 22 sleeved on the guide rod 21 is compressed, giving the rotating shaft 32 a reverse force, counteracting the normal force generated by the rotating shaft 32 during grinding, causing the grinding wheel 33 on the rotating shaft 32 to press firmly against the surface of the track 4, thus improving the grinding quality.

[0048] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. An auxiliary device for a rail weld grinding equipment, characterized in that, include: A clamping assembly includes a jaw and an arc-shaped plate. The jaw clamps both sides of a track, and the arc-shaped plate is disposed on one side of the jaw. A support rod is disposed on the side of the arc-shaped plate near the jaw, and the jaw is connected to the support rod. The side of the arc-shaped plate away from the jaw is bent to form a flange. A normal pressure assembly includes a guide rod and an elastic element. One end of the guide rod is provided with a rolling part, and the other end of the guide rod is provided with a limiting post. The elastic element is sleeved between the rolling part and the limiting post. One end of the rolling part abuts against the flange.

2. The auxiliary device for the track weld grinding equipment according to claim 1, characterized in that: A baffle is provided at the end of the support rod away from the arc plate, and the gripper is engaged between the baffle and the arc plate.

3. The auxiliary device for the track weld grinding equipment according to claim 2, characterized in that: A limiting plate is also provided between the baffle and the arc-shaped plate.

4. The auxiliary device for the track weld grinding equipment according to claim 2, characterized in that: The gripper includes connecting rods, connecting blocks, hooks, and pressure rods. One end of the two connecting rods is hinged to form a first hinge point. One end of the connecting block is hinged to the first hinge point, and the other end of the connecting block is hinged to the pressure rod to form a second hinge point. The end of the pressure rod near the second hinge point is hinged to the support rod. The hooks are respectively hinged to the ends of the two connecting rods away from the first hinge point. The two sides of the middle part of the two hooks are respectively hinged to the arc-shaped plate and the baffle.

5. The auxiliary device for the track weld grinding equipment according to claim 4, characterized in that: A handle is provided at the end of the pressure rod away from the second hinge point.

6. The auxiliary device for the track weld grinding equipment according to claim 1, characterized in that: The rolling part includes a mounting base and a ball bearing roller. The mounting base is connected to the guide rod, the ball bearing roller is connected to the mounting base, and the end of the ball bearing roller with a ball bearing abuts against the flange.

7. The auxiliary device for the track weld grinding equipment according to claim 1, characterized in that: The rolling part includes a retainer and a bearing. The retainer is connected to the end of the guide rod. The bearing is engaged between the retainers and connected to the retainer pin. The outer ring of the bearing abuts against the flange.

8. The auxiliary device for the track weld grinding equipment according to claim 1, characterized in that: A limiting nut is fitted onto the limiting post.

9. A rail grinding machine, comprising an auxiliary device for the rail weld grinding equipment as described in any one of claims 1-8, characterized in that: It also includes a swing angle assembly, which includes a motor and a rotating shaft. The output end of the motor and the rotating shaft are engaged by gears. The rotating shaft is provided with multiple grinding wheels along the axial direction. The end of the rotating shaft is provided with a mounting hole along the radial direction. The guide rod passes through the mounting hole. The elastic element is engaged between the rolling part and the rotating shaft.

10. The track grinding machine according to claim 9, characterized in that: The diameter of the mounting hole is equal to the diameter of the guide rod.

Images