Vehicle-mounted coping device for track

Abstract

The invention discloses a vehicle-mounted coping device for a rail, which comprises a driving part, a grinding part, a driving part and a driving part, the driving part is detachably mounted on a rail vehicle, and the driving part comprises a telescopic driving part; the coping assembly comprises a coping block and a hinge part; the steering part is arranged between the coping block and the driving part in the telescopic direction of the driving part, the hinge part is hinged to the driving part, and the steering part abuts against the driving part, so that the driving part can push the steering part to abut against and drive the coping block to abut against the surface of the rail, and the rotating angle of the coping assembly and the driving part can be adjusted through the hinge part. According to the embodiment of the invention, the vehicle-mounted coping device is mounted on the railway vehicle, the problem of suppressing the corrugation of the steel rail slightly and repeatedly when the vehicle is operated is solved, and the driving piece, the steering piece abutting against the driving piece and the coping assembly which is hinged to the driving piece and abuts against the steering piece are arranged, so that the reliability of the structure of the steel rail corrugation coping device can be effectively ensured; and the steel rail grinding function with the variable angle can be achieved.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of track maintenance, and more particularly, to a vehicle-mounted rail grinding device for a track. BACKGROUND

[0002] With the increasing number of urban rail transit vehicle operations and the increasing mileage, and the increasing variety of rail fastening types used in different lines, the problems caused by track problems in urban rail lines are increasing. Among them, rail corrugation and wheel polygon are the main sources of vibration and noise of urban rail transit vehicles, and are also important reasons for abnormal vehicle vibration, poor smoothness, and abnormal phenomena such as vehicle sway, which further affect the comfort and safety of passengers. At present, the rail grinding equipment used at home and abroad is basically based on professional grinding engineering vehicles, which need to be put into operation during the operation window period, and cannot effectively suppress the rail corrugation problem in time, and the use cost is relatively high.

[0003] Therefore, there is an urgent need to provide a vehicle-mounted rail grinding device for a track, which can be periodically attached to the vehicle during vehicle operation, solve the rail grinding problem through a small number of times, and effectively ensure the reliability of the rail corrugation grinding device structure to ensure that the angle-variable rail grinding function can be realized. SUMMARY In order to at least solve one or more technical problems as mentioned above, the present disclosure provides a vehicle-mounted rail grinding device for a track.

[0004] The present disclosure provides a vehicle-mounted rail grinding device for a track, comprising: a driving member detachably mounted on a rail vehicle, the driving member comprising a telescopic driving part; a grinding assembly comprising a grinding block and a hinge part; a turning member arranged between the driving part and the grinding block in the telescopic direction of the driving part, and the hinge part is hingedly connected with the driving part, the turning member abuts against the driving part, so that the driving part can push the turning member to drive the grinding block to abut against the surface of the rail, and the grinding assembly can adjust the rotation angle with the driving part by means of the hinge part. In some embodiments, the driving member is a pneumatic cylinder, the driving part is a pneumatic cylinder rod, the driving member comprises the pneumatic cylinder rod and a rotation-stopping washer, the rotation-stopping washer is fixedly connected with the cylinder body of the pneumatic cylinder, and forms a rotation-stopping limit with the pneumatic cylinder rod.

[0005] In some embodiments, the turning member is arranged between the hinge part and the driving part.

[0006] In some embodiments, the driving part comprises an abutting part, the turning member has an arc-shaped connecting surface, the arc-shaped connecting surface abuts against the abutting part to receive the driving of the driving part, and the axis of the arc-shaped connecting surface is concentrically arranged with the hinge axis of the hinge part.

[0007] In some embodiments, a disc spring is further included, and the two axial sides of the disc spring are respectively connected with the turning member and the grinding assembly.

[0008] In some embodiments, a bushing is further arranged between the hinge portion and the driving portion.

[0009] In some embodiments, the grinding assembly further comprises a grinding block holder, and the grinding block is detachably connected with the grinding block holder.

[0010] In some embodiments, the grinding block holder comprises an upper holder plate and a lower holder plate detachably connected with each other, the lower holder plate is provided with a lower clamping groove, and the upper holder plate comprises an upper clamping groove oppositely arranged with the lower clamping groove, and the grinding block is adapted to be clamped by the upper clamping groove and the lower clamping groove.

[0011] In some embodiments, the lower holder plate further comprises a dovetail clamping block extending in a direction perpendicular to the direction in which the upper clamping groove and the lower clamping groove are oppositely arranged, and the grinding block is provided with a dovetail clamping groove matched with the dovetail clamping block.

[0012] In some embodiments, a fixing washer is further arranged between the upper holder plate and the lower holder plate.

[0013] Through the on-board grinding device for a rail provided as above, the disclosure embodiments can effectively guarantee the reliability of the rail corrugation grinding device structure, and ensure that the angle-variable rail grinding function can be realized, by arranging the driving member, the turning member abutting against the driving member, and the grinding assembly hingedly connected with the driving member and abutting against the turning member. BRIEF DESCRIPTION OF DRAWINGS

[0014] The above and other objects, features and advantages of the exemplary embodiments of the present disclosure will be more apparent from the following detailed description read in conjunction with the accompanying drawings, in which several embodiments of the present disclosure are shown by way of example, and wherein like reference numerals refer to like elements throughout. In the drawings: Figure 1 An exemplary perspective view of an on-board grinding device for a rail according to some embodiments of the present disclosure is shown; Figure 2 An exemplary side view of an on-board grinding device for a rail according to some embodiments of the present disclosure is shown; Figure 3 An exemplary perspective view of an on-board grinding device for a rail according to some embodiments of the present disclosure is shown; Figure 4 An exemplary perspective view of a grinding block holder portion of an on-board grinding device for a rail according to some embodiments of the present disclosure is shown; Figure 5 An exemplary side view of a grinding block holder portion of an on-board grinding device for a rail according to some embodiments of the present disclosure is shown; Figure 6 An exemplary exploded view of a grinding block holder portion of an on-board grinding device for a rail according to some embodiments of the present disclosure is shown. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the present disclosure will be described clearly and completely in combination with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present disclosure.

[0016] It should be understood that the terms "comprise" and "include" used in the specification and claims of the present disclosure indicate the presence of the described features, integers, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0017] It should also be understood that the terms used in the specification of the present disclosure are only for the purpose of describing specific embodiments, and are not intended to limit the present disclosure. As used in the specification and claims of the present disclosure, the singular forms "a", "an" and "the" are intended to include the plural forms, unless the context clearly indicates otherwise. It should be further understood that the term "and / or" used in the specification and claims of the present disclosure means any combination of one or more of the associated listed items and all possible combinations thereof, and includes these combinations.

[0018] As used in the specification and claims of this document, the term "if" can be interpreted as meaning "when" or "once" or "in response to a determination" or "in response to detecting" depending on the context. Similarly, the phrase "if determined" or "if detected [the described condition or event]" can be interpreted as meaning "once determined" or "in response to a determination" or "once detected [the described condition or event]" or "in response to detecting [the described condition or event]" depending on the context.

[0019] The embodiments of the present disclosure provide a vehicle-mounted grinding device for a track, which can effectively ensure the reliability of the structure of the steel rail corrugation grinding device and ensure the realization of the angle-variable steel rail grinding function by arranging a driving member, a turning member abutting against the driving member, and a grinding assembly hingedly connected with the driving member and abutting against the turning member.

[0020] The specific embodiments of the present disclosure will be described in detail below in combination with the drawings.

[0021] Reference is made to Figures 1 to 3 , Figure 1 FIG. 1 shows an exemplary perspective view of a vehicle-mounted grinding device for a track according to some embodiments of the present disclosure, Figure 2An exemplary side view of an on-board grinding apparatus for tracks, according to some embodiments of this disclosure, is shown. Figure 3 An exemplary perspective view of an onboard grinding apparatus for tracks, representing some embodiments of this disclosure, is shown.

[0022] Some embodiments disclosed herein provide an on-board grinding device for rails, including a drive unit 100, a steering unit 24, and a grinding assembly 200. The drive unit 100 is detachably mounted to the rail vehicle and includes a telescopic drive section 17. The grinding assembly 200 includes a grinding block 1 and a hinge section 29. The steering unit 24 is disposed between the grinding block 1 and the drive section 17 along the telescopic direction of the drive section 17. The hinge section 29 is hinged to the drive section 17, and the steering unit 24 abuts against the drive section 17, allowing the drive section 17 to push the steering unit 24 to drive the grinding block 1 against the rail surface. The grinding assembly 200 can adjust its rotation angle with the drive section 17 via the hinge section 29. Specifically, the drive unit 100 can be a cylinder, electric cylinder, or other drive device for providing driving force. It can be attached to the rail vehicle by bolts or other means to grind the rails along the track as the rail vehicle moves. The retractable drive section 17 of the drive member 100 serves as the force output end and forms a surface contact with the steering member 24. The steering member 24 is disposed between the drive section 17 and the grinding block 1 along the extension and retraction direction of the drive section 17 to transmit driving force between the two.

[0023] Meanwhile, the grinding assembly 200 is rotatably connected to the drive unit 17 via the hinge 29, without affecting the contact relationship between the drive unit 17 and the steering component 24. Thus, the drive unit 17, the steering component 24, and the grinding assembly 200 form a composite connection of rotational hinge and linear contact, ensuring effective transmission of driving force while retaining flexibility for angle adjustment. During rail vehicle operation, the on-board grinding device disclosed herein can be periodically attached to the rail vehicle as needed to address rail grinding issues through multiple small-scale grinding applications. This avoids the increased costs associated with using dedicated rail maintenance equipment, reduces overall downtime for maintenance, and improves the overall efficiency of rail vehicle operation.

[0024] The linear abutment connection between the drive unit 17 and the steering component 24 allows the driving force of the drive unit 17 to be directly and without deviation transmitted to the grinding block 1, ensuring that the grinding block 1 forms a stable pressing pressure on the track surface. The hinge structure between the hinge part 29 and the drive unit 17 gives the grinding assembly 200 the ability to adjust its angle. It can be adjusted to adapt to the curvature, inclination, or local unevenness of the track surface, ensuring that the grinding block 1 always keeps in contact with the track surface, avoiding over-grinding or omissions in certain areas, and improving the stability and uniformity of track grinding.

[0025] Further or optionally, the driving component 100 is a cylinder, in which case the driving part 17 is a cylinder rod. The driving component 100 also includes an anti-rotation washer 16, which is fixedly connected to the cylinder body 12 and forms an anti-rotation limit with the cylinder rod. Specifically, in this embodiment, the driving component 100 uses a cylinder as a power source, and the driving part 17 is the cylinder rod. The cylinder includes a mounting base fixed to the cylinder body 12, and the anti-rotation washer 16 is installed in the mounting base. It has a step that matches the shape of the cylinder rod to limit the rotation of the cylinder rod. A return spring 19 is provided between the cylinder rod and the anti-rotation washer 16 to provide a restoring force to the cylinder rod. The anti-rotation washer 16 and the anti-rotation limiting structure of the cylinder body 12 prevent the torsion phenomenon during the extension and retraction of the cylinder rod, thereby preventing the steering component 24 and the grinding assembly 200 from rotating synchronously with the cylinder rod. This ensures that the contact direction between the grinding block 1 and the track surface remains consistent, improves stability during the grinding process, reduces vibration, and enhances grinding accuracy. Furthermore, by setting the drive component 100 as a cylinder, the response speed of the drive component 100 can be faster, and the output pressure can be more stable.

[0026] Furthermore, the steering member 24 is disposed between the hinge portion 29 and the drive portion 17. Thus, one end of the steering member 24 abuts against the drive portion 17 to receive driving force, while the other end forms a rotatable connection with the grinding assembly 200 via the hinge portion 29. This connection structure is compact and efficient. Compared to a solution where the steering member 24 is positioned far from the hinge portion 29, placing the steering member 24 closer to the hinge rotation axis ensures a more stable contact between the steering member 24 and the drive portion 17 when the grinding assembly 200 adjusts its angle, preventing the grinding assembly 200 from wobbling due to an excessively long lever arm and improving the stability of the device's operation.

[0027] Further or optionally, the drive unit 17 includes an abutment 23, and the steering member 24 has an arcuate connecting surface. The arcuate connecting surface abuts against the abutment 23 to receive the drive from the drive unit 17, and the axis of the arcuate connecting surface is concentrically arranged with the hinge axis of the hinge member 29. The arcuate connecting surface of the steering member 24 can be formed as an arcuate concave or convex structure, which forms a line contact or surface contact abutment fit with the plane or arcuate surface at the end of the abutment 23. By making the axis of the arcuate connecting surface coincide with the hinge axis of the hinge member 29, the arcuate connecting surface can always remain in contact with the abutment 23 when the steering member 24 rotates around the hinge axis with the grinding assembly 200, without separation or misalignment. Thus, at any rotation angle, the pushing force of the drive unit 17 is always perpendicular to the tangential direction of the arcuate connecting surface, ensuring stable driving force direction and reducing the probability of jamming due to driving force deviation during grinding. Meanwhile, the surface contact or line contact method increases the force-bearing area, reduces wear between the steering component 24 and the top 23, and extends the service life of the component.

[0028] Further or optionally, the device also includes a disc spring 25, which connects the steering component 24 and the grinding assembly 200 on its two axial sides, respectively. Specifically, the disc spring 25 is capable of elastic torsion in the axial direction and elastic expansion and contraction in the radial direction. One end of the disc spring 25 is connected to the steering component 24 by means of a snap fastener, bolt, or welding, and the other end is connected to the grinding assembly 200 in a similar manner. The elastic deformation of the disc spring 25 effectively absorbs the impact and vibration caused by the unevenness of the track surface during grinding, avoiding direct impact between the grinding block 1 and the track, thus protecting the track surface, the grinding block 1, and the drive unit 17, and reducing the risk of damage to the track or grinding device components. Simultaneously, the elasticity of the disc spring 25 can elastically compensate for the wear or assembly error of the grinding block 1, ensuring that the pressure between the grinding block 1 and the track remains within a set range, eliminating the need for frequent manual adjustments and ensuring consistent grinding results. Furthermore, in some embodiments, after assembly, the disc spring 25 can be in a pre-compressed state to ensure good contact between the steering component 24 and the drive unit 17.

[0029] Further or optionally, a bushing 26 is provided between the hinge portion 29 and the drive portion 17. This bushing 26 can be formed into a cylindrical shape and is fitted between the hinge shaft of the hinge portion 29 and the hinge hole of the drive portion 17. The bushing 26 can be made of materials such as metal or polyurethane, and can be fixedly connected to one of the hinge shafts of the hinge portion 29 and the hinge hole of the drive portion 17 to form support at their contact surfaces. The bushing 26 can effectively resist the impact force when the hinge portion 29 rotates, reduce rigid collisions and wear between components, reduce operating noise, extend the service life of components, and make the angle adjustment of the grinding assembly 200 smoother, avoiding jamming. In addition, a buffer pad 28 can be provided between the drive unit 17 and the cylinder 12. The buffer pad 28 can be made of elastic materials such as polyurethane or rubber. Preferably, a natural rubber pad with high elasticity, viscoelasticity, high damping and wide frequency vibration reduction can be used to greatly alleviate the high frequency vibrations that the grinding block is subjected to after pressing onto the rail, improve the reliability of the rail corrugation grinding device structure, so that the structure will not fail due to high frequency vibration while realizing the rail grinding function.

[0030] See Figures 4 to 6 , Figure 4 An exemplary perspective view of the grinding block support portion of an on-board grinding apparatus for tracks, according to some embodiments of this disclosure, is shown. Figure 5 An exemplary side view of the grinding block support portion of an on-board grinding apparatus for tracks, according to some embodiments of this disclosure, is shown. Figure 6An exemplary exploded view of the grinding block support portion of an on-board grinding device for rails according to some embodiments of this disclosure is shown. In this embodiment, the grinding assembly 200 further includes a grinding block support 50, to which the grinding block 1 is detachably connected. The grinding block support 50 is a support structure for directly supporting the grinding block 1, and it is connected to the grinding block 1 by a detachable connection method such as bolt connection, snap connection, or slot connection. The grinding block 1 is fixed at a preset position on the grinding block support 50, with its main grinding surface facing a preset rail position, so as to facilitate grinding under the drive of the drive member 100. Since the grinding block 1 is a grinding execution component that needs to frequently rub against the rail surface, it is prone to wear during use and needs to be replaced periodically. This detachable connection design makes the replacement and maintenance of the grinding block 1 more convenient, without the need to completely disassemble the grinding assembly 200 or the drive member 100, significantly shortening downtime for maintenance and improving work efficiency. In addition, the grinding block support 50 provides stable support for the grinding block 1, improves the overall structural rigidity of the grinding assembly 200, and reduces the probability of the grinding block 1 being deformed or damaged due to direct force.

[0031] Further or optionally, the grinding block holder 50 includes an upper support plate 2 and a lower support plate 5 detachably connected to each other. The lower support plate 5 is provided with a lower retaining groove, and the upper support plate 2 includes an upper retaining groove opposite to the lower retaining groove. The grinding block 1 is adapted to be clamped by the upper and lower retaining grooves. Specifically, the upper support plate 2 and the lower support plate 5 can be combined and fixed by detachable connectors such as bolts 3 to form a clamping structure. One edge of the lower support plate 5 protrudes in a direction perpendicular to the plate surface. This protrusion is inclined towards the center of the plate surface, and the angle between the inclined part and the plate surface defines the lower retaining groove. Similarly, the upper support plate 2 is provided with a protrusion perpendicular to the plate surface of the upper support plate 2. The angle between the protrusion and the plate surface of the upper support plate 2 defines the upper retaining groove. The shape and size of the upper and lower retaining grooves can be set to match the shape of the grinding block 1. After the grinding block 1 is inserted between the two retaining grooves, it can be fixed by the clamping force of the upper and lower support plates 5. This reduces the probability of grinding block 1 falling off, shifting, or shaking during the grinding process. The detachable design makes replacing grinding block 1 simpler and faster, reducing maintenance costs and minimizing downtime during commissioning, thus improving production efficiency.

[0032] Furthermore, or optionally, the lower support plate 5 also includes a dovetail locking block 51. The dovetail locking block 51 extends in a direction perpendicular to the relative installation direction of the upper and lower locking slots. The grinding block 1 is provided with a dovetail locking slot that mates with the dovetail locking block 51. The dovetail locking block 51 is a protruding structure integrally formed or fixedly connected within the lower locking slot. Its cross-section is dovetail-shaped, and its length extends in a direction perpendicular to the relative installation direction of the upper and lower support plates 5. The dovetail locking slot of the grinding block 1 and the cross-sectional shape of the dovetail locking block 51 form a shape fit, allowing it to move along the extension direction of the dovetail locking block until the dovetail locking slot engages with the dovetail locking block 51, thereby creating a limiting position in a direction perpendicular to the surface of the lower support plate 5. By setting the dovetail-shaped mating structure to limit the position of the grinding block 1 and restrict the displacement of the grinding block 1 in a direction perpendicular to the grinding direction, it is possible to prevent the grinding block 1 from loosening due to impact during the grinding process. Meanwhile, the plug-in installation and positioning method of the dovetail groove structure simplifies the replacement process of the grinding block 1, and the positioning is accurate, eliminating the need for repeated adjustments, which helps to reduce downtime during debugging and further improves work efficiency.

[0033] Further, or optionally, a fixing washer 4 is provided between the upper support plate 2 and the lower support plate 5. The fixing washer 4 can be made of metal, rubber, or other materials, and is placed between the connecting surfaces of the upper support plate 2 and the lower support plate 5 to fill the gap between the connecting surfaces of the two support plates. The fixing washer 4 can also be set as a spring washer to enhance the connection stability, prevent the fastening connection from loosening due to vibration, and thus improve the stability of the clamping force of the slot on the grinding block 1. At the same time, the fixing washer 4 can distribute the pressure of bolts and other connecting parts, avoid deformation of the support plate connection part due to excessive local pressure, and extend the service life of the support plate. In addition, when using a metal washer, the metal washer can also improve the rigid connection effect between the two support plates. When using an elastic material washer such as a rubber washer, the bushing 26 rings can further absorb vibration, reduce noise, and improve the overall operating stability of the device.

[0034] According to some embodiments of this disclosure, the on-board grinding device for rails, by providing a drive member 100, a steering member 24 abutting against the drive member 100, and a grinding assembly 200 hinged to the drive member 100 and abutting against the steering member 24, can effectively ensure the reliability of the rail corrugation grinding device structure and ensure that the rail grinding function with variable angle can be realized.

[0035] While numerous embodiments of this disclosure have been shown and described herein, it will be apparent to those skilled in the art that such embodiments are provided by way of example only. Many modifications, alterations, and alternatives will occur to those skilled in the art without departing from the spirit and intent of this disclosure. It should be understood that various alternatives to the embodiments of this disclosure described herein may be employed in the practice of this disclosure. The appended claims are intended to define the scope of this disclosure and therefore cover equivalents or alternatives within the scope of these claims.

Claims

1. A vehicle-mounted grinding device for rails, characterized in that, include: A drive unit (100) is detachably mounted to the rail vehicle, the drive unit (100) including a retractable drive section (17). The grinding assembly (200) includes a grinding block (1) and a hinge (29). A steering component (24) is disposed between the grinding block (1) and the driving unit (17) along the extension and retraction direction of the driving unit (17), and The hinge (29) is hinged to the drive (17), and the steering member (24) abuts against the drive (17), so that the drive (17) can push the steering member (24) to abut against the grinding block (1) against the track surface, and the grinding assembly (200) can adjust its rotation angle with the drive (17) by means of the hinge (29).

2. The vehicle-mounted grinding device according to claim 1, characterized in that, The driving component (100) is a cylinder, the driving part (17) is a cylinder rod, the driving component (100) includes an anti-rotation washer (16), the anti-rotation washer (16) is fixedly connected to the cylinder body (12) of the cylinder, and forms an anti-rotation limit with the cylinder rod.

3. The vehicle-mounted grinding device according to claim 1, characterized in that, The steering component (24) is disposed between the hinge portion (29) and the drive portion (17).

4. The vehicle-mounted grinding device according to claim 3, characterized in that, The drive unit (17) includes a top abutment (23), and the steering member (24) has an arc-shaped connecting surface. The arc-shaped connecting surface abuts against the top abutment (23) to receive the drive of the drive unit (17), and the axis of the arc-shaped connecting surface is concentrically arranged with the hinge axis of the hinge unit (29).

5. The vehicle-mounted grinding device according to claim 3, characterized in that, It also includes a disc spring (25), which connects the steering component (24) and the grinding assembly (200) on its two axial sides respectively.

6. The vehicle-mounted grinding device according to claim 3, characterized in that, A bushing (26) is also provided between the hinge (29) and the drive (17).

7. The vehicle-mounted grinding device according to any one of claims 1 to 6, characterized in that, The grinding assembly (200) also includes a grinding block holder (50), to which the grinding block (1) is detachably connected.

8. The vehicle-mounted grinding device according to claim 7, characterized in that, The grinding block holder (50) includes an upper support plate (2) and a lower support plate (5) that are detachably connected to each other. The lower support plate (5) is provided with a lower slot, and the upper support plate (2) includes an upper slot that is opposite to the lower slot. The grinding block (1) is adapted to be clamped by the upper slot and the lower slot.

9. The vehicle-mounted grinding device according to claim 8, characterized in that, The lower support plate (5) also includes a dovetail locking block (51), which extends in a direction perpendicular to the installation direction of the upper and lower locking slots. The grinding block (1) is provided with a dovetail locking slot that cooperates with the dovetail locking block (51).

10. The vehicle-mounted grinding device according to claim 8, characterized in that, A fixing washer (4) is also provided between the upper support plate (2) and the lower support plate (5).

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