Tread cleaning device

Abstract

The present invention provides a tread cleaning device comprising: a cylinder member including a piston rod capable of performing linear movement; the grinding sub-support is connected to the piston rod, and a grinding sub-support is arranged on the grinding sub-support; wherein the connecting end of the piston rod is provided with two bolt holes, a first clamping piece and a second clamping piece of the connecting part of the grinding sub-support are provided with bolt holes corresponding in position respectively, the first clamping piece and the second clamping piece are located on the two sides of the connecting end of the piston rod, and a first bolt and a second bolt penetrate through the first clamping piece and the second clamping piece respectively. The connecting end of the piston rod and the bolt hole of the second clamping piece are received by a nut on the outer side of the second clamping piece, one or more limiting components abutting against the bolt heads of the first bolt and the second bolt are arranged on the outer side of the first clamping piece, and therefore the first bolt and the second bolt are limited to rotate. According to the embodiment of the invention, the tread cleaning device is convenient to assemble.

Description

Technical Field

[0001] The invention belongs to the technical field of rail vehicle equipment, relates to wheel tread cleaning of rail vehicles, and in particular to a tread cleaning device. Background Art

[0002] Rail vehicles have become a major mode of transportation, and their operational safety has always been a focus of public attention. Wheels, as crucial running components of bogies, are directly impacted by tread out-of-round, scratches, and low adhesion. Tread cleaning devices can improve wheel tread condition, enhance wheel-rail adhesion, and prevent out-of-round conditions. Therefore, they are essential components of bogies.

[0003] Tread cleaners are typically installed on rail vehicles, corresponding to their wheels. For example, during braking, the abrasives (also known as "grinding blocks") on the wheels are controlled to rub against the wheel tread, thereby cleaning the tread. This friction maintains good adhesion between the wheel and the track, helping to prevent idling or sliding during starting, deceleration, or braking.

[0004] When a train is running, the wheels vibrate up and down due to factors such as the track. Therefore, the grinding support of the tread cleaning device must be able to achieve an up and down swing function. Previously, the connection between the grinding support and the piston rod of the tread cleaning device used a hinged bolt, which could effectively achieve this function. However, during installation, one end of the bolt had to be fixed to complete the assembly. Summary of the Invention

[0005] The purpose of the present invention is to solve or at least alleviate the problems existing in the prior art.

[0006] In one aspect, a tread cleaning device is provided, comprising: a cylinder member including a piston rod capable of performing linear movement; A grinding sub-holder, the grinding sub-holder being connected to the piston rod and having grinding sub-holders arranged thereon; In which, the connecting end of the piston rod has two bolt holes, and the connecting part of the grinding sub-holder has a first clip and a second clip, the first clip and the second clip respectively have bolt holes corresponding to the positions of the bolt holes of the piston rod, and the first clip and the second clip are located on both sides of the connecting end of the piston rod, the first bolt and the second bolt respectively pass through the first clip, the bolt holes of the connecting end of the piston rod and the second clip and are received by the nut on the outside of the second clip, wherein the outside of the first clip has one or more limiting components that abut against the bolt heads of the first bolt and the second bolt, thereby limiting the rotation of the first bolt and the second bolt.

[0007] Optionally, in an embodiment of the tread cleaning device, the bolt head is an external hexagon, and the limiting member abuts against one or two surfaces of the bolt head.

[0008] Optionally, in an embodiment of the tread cleaning device, the limiting member is formed as a boss located on the outside of the first clip.

[0009] Optionally, in an embodiment of the tread cleaning device, the boss has a flat end surface, and the flat end surface abuts against one surface of the bolt head of the first bolt and the second bolt at the same time.

[0010] Optionally, in an embodiment of the tread cleaning device, the boss includes a first boss corresponding to the first bolt and a second boss corresponding to the second bolt.

[0011] Optionally, in an embodiment of the tread cleaning device, the first boss and the second boss include a first cut angle and a second cut angle, respectively, and the first cut angle and the second cut angle respectively abut against two adjacent surfaces of the bolt heads of the first bolt and the second bolt.

[0012] Optionally, in an embodiment of the tread cleaning device, the limiting member is formed as a groove recessed from the outer side of the first clip, and the bolt heads of the first bolt and the second bolt are arranged in the groove and abut against the side wall of the groove.

[0013] Optionally, in an embodiment of the tread cleaning device, a first elastic member and a second elastic member are respectively provided between the inner sides of the first clip and the second clip and the connecting end of the piston rod, and the first bolt and the second bolt also pass through the first elastic member and the second elastic member respectively.

[0014] Optionally, in an embodiment of the tread cleaning device, the two bolt holes are arranged in a transverse direction perpendicular to the moving direction of the piston rod, and the first bolt and the second bolt pass through the two bolt holes in a longitudinal direction.

[0015] In another aspect, a tread cleaning device is provided, comprising: a cylinder member including a piston rod capable of performing linear movement; A grinding sub-holder, the grinding sub-holder being connected to the piston rod and having grinding sub-holders arranged thereon; In which, the connecting part of the grinding sub-holder has two bolt holes, and the connecting end of the piston rod has a first clip and a second clip, the first clip and the second clip respectively have bolt holes corresponding to the positions of the bolt holes of the grinding sub-holder, and the first clip and the second clip are located on both sides of the connecting part of the grinding sub-holder, the first bolt and the second bolt respectively pass through the first clip, the connecting part of the grinding sub-holder and the bolt holes of the second clip and are received by the nut on the outside of the second clip, wherein the outside of the first clip has a limiting component that abuts against the bolt heads of the first bolt and the second bolt, thereby limiting the rotation of the first bolt and the second bolt.

[0016] The tread cleaning device according to the embodiment of the present invention is easy to assemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The principles of the present invention will become more apparent from the following detailed description when read in conjunction with the accompanying drawings, in which: Figure 1 A side view of a tread cleaning device according to one embodiment of the present invention is shown; Figure 2 Shown Figure 1 A bottom view of a tread cleaning device; Figure 3 Shown Figure 1 A partial enlarged view of the tread cleaning device; Figure 4 A bottom view showing a tread cleaning device according to another embodiment of the present invention; and Figure 5 Shown Figure 4 A partial enlarged view of the tread cleaning device. DETAILED DESCRIPTION

[0018] It is easy to understand that according to the technical solution of the present invention, without changing the essential spirit of the present invention, a person skilled in the art can propose a variety of interchangeable structural modes and implementation modes. Therefore, the following specific embodiments and drawings are only exemplary descriptions of the technical solution of the present invention and should not be regarded as the entire invention or as a limitation or restriction of the technical solution of the present invention.

[0019] The terms "up," "down," "left," "right," "front," "back," "front," "back," "top," and "bottom" mentioned or potentially mentioned in this specification are defined relative to the configurations shown in the accompanying drawings. They are relative concepts and may vary depending on the location and usage of the device. Therefore, these and other directional terms should not be construed as restrictive.

[0020] refer to Figures 1 to 3 Let's introduce a tread cleaning device according to an embodiment of the present invention. The tread cleaning device according to the embodiment may include: a mounting base 1, a cylinder component 2, the cylinder component 2 includes a piston rod 3 capable of performing linear movement; a grinder holder 4, the grinder holder 4 is connected to the piston rod 3 and a grinder 5 is arranged on the grinder holder 4. When, for example, a rail vehicle brakes, the piston rod 3 pushes the grinder holder 4 so that the grinder 5 rests against the wheel tread, thereby acting on the wheel tread to achieve the purpose of tread cleaning. In an embodiment, the connecting end of the piston rod 3 has two bolt holes, and the connecting portion of the grinder holder 4 has a first clip 41 and a second clip 42, the first clip 41 and the second clip 42 respectively have bolt holes corresponding to the bolt hole positions of the piston rod 3, and the first clip 41 and the second clip 42 are located on both sides of the connecting end of the piston rod 3, Figure 1 4 shows that the first clip 41 is located at the lower side of the connecting end of the piston rod 3, while the second clip 42 is located at the upper side of the connecting end of the piston rod 3. Figure 2 As shown in FIG, the first bolt and the second bolt pass through the first clip 41, the connecting end of the piston rod 3 and the bolt hole of the second clip 42 respectively and are fixed by the nut 62 ( Figure 1 Only one nut is visible in the bracket. One or more limiting members 43 are provided on the outside of the first clip 41 to abut against the bolt heads 61 of the first and second bolts, thereby limiting rotation of the first and second bolts. The limiting members 43 limit rotation of the bolts during installation and operation, providing a fulcrum for bolt installation, facilitating installation, and preventing the bolts from rotating and slipping during operation.

[0021] exist Figures 1 to 3 In the illustrated embodiment, bolt heads 611 and 612 are both externally hexagonal. In other embodiments, the bolt heads may have other shapes. In some embodiments, the retaining member 43 is formed as a boss located on the outside of the first clamp 41. In other embodiments, the retaining member 43 may also be formed as a groove recessed from the outer surface of the first clamp 41. The bolt head of each bolt may be positioned in the groove and abut against the sidewalls of the groove. The groove may abut against one or more faces of the bolt head, for example, two faces or all faces.

[0022] exist Figures 1 to 3In the illustrated embodiment, the bosses include a first boss 431 corresponding to the first bolt and a second boss 432 corresponding to the second bolt, respectively. The first boss 431 abuts against the bolt head 611 of the first bolt to prevent the first bolt from rotating, and the second boss 432 abuts against the bolt head 612 of the second bolt to prevent the second bolt from rotating. In some embodiments, the first boss 431 and the second boss 432 include a first chamfer and a second chamfer, respectively, which abut against two adjacent surfaces of the bolt heads 611 and 612 of the first and second bolts, respectively. For greater clarity, refer to Figure 3 The first boss 431 has a first chamfer 4310, which includes two side edges 4311, 4312, which respectively abut two adjacent sides 6111, 6112 of the bolt head 611 of the first bolt. The second boss and the bolt head of the second bolt may have the same or similar configuration. In alternative embodiments, the boss may have a trapezoidal shape to abut three sides of the bolt head, or other shapes to abut more sides. For example, in one embodiment, the boss may completely surround the entire bolt head.

[0023] refer to Figure 1 In some embodiments, a first elastic member 71 and a second elastic member 72 are respectively provided between the inner sides of the first clip 41 and the second clip 42 and the connection end of the piston rod 3, and the first bolt and the second bolt also pass through the first elastic member 71 and the second elastic member 72 respectively. The elastic members allow the grinding wheel holder 4 and the grinding wheel 5 to move along the Figure 1 Small vertical movement is achieved. During bolt installation, since the bolt head abuts against the stop member, only a specific torque needs to be applied to the nut end to complete assembly. This specific torque compresses the elastic members 71 and 72 to a predetermined degree. In some embodiments, the two bolt holes are arranged in a transverse direction perpendicular to the direction of piston rod movement, and the first and second bolts pass through the two bolt holes in a longitudinal direction. In alternative embodiments, the two bolt holes may not be arranged in a transverse direction or may be offset in the transverse direction.

[0024] Continue to refer Figure 4 and Figure 5 , which shows another embodiment of the tread cleaning device. In this embodiment, the boss 43 is formed integrally and has a flat end surface. The flat end surface of the boss 43 abuts against one surface of the bolt head of the first bolt and the second bolt at the same time. Figure 5 As shown, the flat end surface 434 of the boss 43 abuts against the surface 6115 of the bolt head 611. The same flat end surface 434 of the boss 43 also abuts against a surface (not shown) of the bolt head 612 in a similar structure. This structure is more convenient to produce.

[0025] In one embodiment, a tread cleaning device is also provided, comprising: a cylinder component, the cylinder component comprising a piston rod capable of performing linear movement; a grinding sub-holder, the grinding sub-holder being connected to the piston rod and having a grinder arranged on the grinding sub-holder; wherein the connecting portion of the grinding sub-holder has two bolt holes, and the connecting end of the piston rod has a first clip and a second clip, the first clip and the second clip respectively having bolt holes corresponding to the positions of the bolt holes of the grinding sub-holder, and the first clip and the second clip are located on both sides of the connecting portion of the grinding sub-holder, the first bolt and the second bolt respectively pass through the first clip, the connecting portion of the grinding sub-holder and the bolt holes of the second clip and are received by the nut on the outside of the second clip, wherein the outside of the first clip has a limiting component that abuts against the bolt heads of the first bolt and the second bolt, thereby limiting the rotation of the first bolt and the second bolt. Figures 1 to 5 Compared with the embodiment of the present invention, in this embodiment, the connecting head of the piston rod is formed into two pieces and clamps the connecting portion of the grinding sub-holder. It should be understood that the above is based on Figures 1 to 5 The various variations described above are also applicable to this structure.

[0026] The tread cleaning device according to the embodiment of the present invention has a reasonable structure, is easy to use, reduces assembly cost, and can be quickly assembled. In addition, the hinged bolts of the tread cleaning device can effectively prevent the bolts from slipping and rotating in the bolt holes when the tread cleaning device is working.

[0027] It should be understood that all the above preferred embodiments are illustrative rather than restrictive, and various modifications or variations made by those skilled in the art to the specific embodiments described above under the concept of the present invention should be within the legal protection scope of the present invention.

Claims

1. A tread cleaning device, characterized in that: include: a cylinder member comprising a piston rod capable of performing linear movement, an end of the piston rod being provided with a coupling end; a grinding wheel holder connected to the piston rod, with a grinding wheel arranged on one side and a coupling portion arranged on the other side of the grinding wheel holder; and A threaded hole is provided on one of the connecting portion and the connecting end, and a limiting member is provided on the other. The connecting portion and the connecting end are connected by means of a bolt and nut assembly. The limiting member is formed with a groove, and the groove is configured to form an anti-rotation limit with the bolt head of the bolt to limit the rotation of the bolt. An elastic member is also provided between the connecting end and the connecting portion to enable the grinding sub-holder to move elastically relative to the piston rod.

2. The tread cleaning device according to claim 1, characterized in that: The connecting portion of the grinding sub-holder includes a first clip and a second clip, and the connecting end of the piston rod is arranged between the first clip and the second clip.

3. The tread cleaning device according to claim 2, characterized in that: A first elastic member and a second elastic member are respectively provided between inner sides of the first and second clips and the connecting end of the piston rod, and the bolt passes through the first and second elastic members.

4. The tread cleaning device according to claim 1, characterized in that: The connecting end of the piston rod has a first clip and a second clip, and the connecting portion of the grinding sub-holder is arranged between the first clip and the second clip.

5. The tread cleaning device according to claim 1, characterized in that: The bolt head is in an external hexagonal shape, and the limiting component includes a boss corresponding to the bolt, and the boss abuts against a side surface of the bolt head.

6. The tread cleaning device according to claim 5, characterized in that: The boss includes a chamfered corner that abuts against two adjacent surfaces of the bolt head of the bolt.

7. The tread cleaning device according to claim 5, characterized in that: The boss completely surrounds the bolt head of the bolt.

8. The tread cleaning device according to claim 1, characterized in that: The limiting member is formed as a groove recessed from the outer side of the coupling portion or the coupling end, and the bolt head of the bolt is arranged in the groove and abuts against a side wall of the groove.

9. The tread cleaning device according to any one of claims 1 to 8, characterized in that: The connecting end of the piston rod has two bolt holes, and the connecting part of the grinding sub-holder has bolt holes corresponding to the positions of the bolt holes of the piston rod. The first bolt and the second bolt pass through the bolt holes of the connecting end and the connecting part respectively and are received by the nuts on the outside of the connecting part or the connecting end, wherein the connecting part or the connecting end is provided with one or more limiting members that abut against the bolt heads of the first bolt and the second bolt, thereby limiting the rotation of the first bolt and the second bolt.

10. The tread cleaning device according to claim 9, characterized in that: The two bolt holes are arranged in a transverse direction perpendicular to the moving direction of the piston rod, and the first bolt and the second bolt pass through the two bolt holes in a longitudinal direction perpendicular to the transverse direction.

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