Automatic wheel stopping mechanism for real wheel pair of motor train unit

Abstract

The invention discloses an automatic wheel stopping mechanism for a real wheel pair of a motor train unit, which comprises two steel rails arranged side by side and matched with the real wheel pair; each wheel stopper comprises a mounting frame, a sliding rail, a sliding block, a driving device and a driving device, and the side wall of the mounting frame is provided with a sliding rail; the lifting plate is provided with sliding blocks matched with the sliding rails, and the lifting plate moves up and down along the mounting frame; a wheel stop structural member; the driving mechanism is used for controlling the lifting of the lifting plate; and the control and detection module is used for detecting the placement of the real wheel pair and controlling the action of the driving mechanism so as to realize the automatic wheel stopping of the real wheel pair. Automatic wheel stopping can be achieved, wheel pair rolling is effectively prevented, and the operation efficiency is improved; the risk of manual operation is avoided; the mechanism is compact in structure and easy to install on an existing steel rail system, the maintenance cost is reduced, and the overall automation level of motor train unit maintenance is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of EMU wheelset maintenance, in particular to an automatic wheel stopping mechanism for EMU wheelset. BACKGROUND

[0002] High-speed rail wheelsets need to be removed from the vehicle body for maintenance after a period of operation, and the wheelsets need to be inspected for damage after maintenance. The entire operation process requires the wheelset to be stationary. There are two common methods currently used. One is to manually place wedge-shaped objects on both sides of the wheel tread to prevent the wheel from rolling. The other is to design the wheelset support track parking position as V-shaped, so that the wheelset sinks and is stuck when it moves to this position, thereby achieving the purpose of ensuring the wheel to be stationary.

[0003] When the wedge-shaped objects are manually placed on both sides of the wheel tread to prevent the wheel from moving in the prior art, the wheelset needs to be manually moved to a specified position, and the wedge is manually placed. This method has the risk of pinching the fingers of the operator, and the parking position is different each time, so it cannot be used for automatic inspection of the equipment upgrade. When the wheelset support track parking position is designed as V-shaped, the wheelset can be parked at a specified position each time. However, it is difficult to remove the wheelset, especially when there is no inspection, and the wheelset needs to be moved from the support track. Due to the V-shaped groove, the wheelset is stuck during movement, and the operator needs to remove the stuck wheelset from the track, resulting in increased workload. SUMMARY

[0004] The purpose of the present application is to provide an automatic wheel stopping mechanism and method for EMU wheelsets, to solve the problem of the prior art that the wheelset needs to be manually moved to a specified position, the wedge is manually placed, there is a risk of pinching the fingers of the operator, or the wheelset support track is designed as V-shaped, which makes the wheelset prone to sticking during movement, increases the workload of the operator, and affects the overall efficiency of EMU maintenance.

[0005] To achieve the above purpose, the technical scheme is as follows: The present application provides an automatic wheel stopping mechanism for EMU wheelsets, comprising: two steel rails arranged side by side, the two steel rails cooperating with the wheelset; at least one wheel stopper, each wheel stopper comprising: a mounting bracket arranged on one side of the steel rail, the side wall of the mounting bracket being provided with a sliding rail; a lifting plate provided with a sliding block cooperating with the sliding rail, the lifting plate moving up and down along the mounting bracket; a wheel stopping structure arranged on the lifting plate; a drive mechanism, the end of the drive mechanism being connected to the lifting plate to control the lifting of the lifting plate, so that the wheel stopping structure is lifted to a stopping position. A control and detection module is connected with the driving mechanism, and is used for detecting the placement of the real vehicle wheel pair and controlling the action of the driving mechanism to realize automatic wheel stopping of the real vehicle wheel pair.

[0006] Preferably, the wheel stopping structure comprises two spaced apart rollers, and the axes of the two rollers are arranged in parallel.

[0007] Preferably, the central axes of the two rollers are fixed with the lifting plate, and the two rollers can rotate around the respective central axes.

[0008] Preferably, the stopping position is a position where the two rollers are in contact with the tread of the real vehicle wheel pair.

[0009] Preferably, the spacing range of the two rollers is determined by the size of the real vehicle wheel pair.

[0010] Preferably, the control and detection module comprises: A detection sensor arranged on the outer wall of the steel rail, the detection sensor is configured to generate a jump signal when the tread of the real vehicle wheel pair is blocked; A control module connected with the detection sensor and the driving mechanism respectively, the control module controls the action of the driving mechanism after receiving the jump signal.

[0011] Preferably, the driving mechanism comprises: A jacking cylinder with a fixed end fixedly arranged on the mounting frame, and a free end connected with the lifting plate; An electromagnetic valve connected with the control module and the jacking cylinder respectively, the electromagnetic valve adjusts the lifting of the jacking cylinder after receiving the control signal of the control module.

[0012] Preferably, the application further comprises: A connecting piece with a first end arranged on the upper end of the jacking cylinder, and a second end connected with the lifting plate.

[0013] Preferably, the application further comprises a support frame. A plurality of fixing plates, the plurality of fixing plates are arranged on the support frame, and the lower ends of the two steel rails are connected with the plurality of fixing plates.

[0014] Compared with the prior art, the application has the following beneficial effects: The application provides a motor train unit real train wheel pair automatic wheel stopping mechanism, which can automatically detect the placement position of the real train wheel pair, and drive the lifting plate through the cylinder to lift the wheel stopping structure to the position tangent to the wheel pair tread, so as to effectively prevent the wheel pair from rolling and improve the operation efficiency; the risk of manual operation is avoided; the automatic wheel stopping mechanism is compact in structure, easy to install on the existing steel rail system, reduces the maintenance cost, and improves the overall automation level of the motor train unit maintenance. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the present application, the drawings required to be used in the description will be briefly introduced as follows. Obviously, the drawings in the following description are one embodiment of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings: Figure 1 The structure diagram of the motor train unit real train wheel pair automatic wheel stopping mechanism provided by an embodiment of the present application is shown in the figure; Figure 2 The side view of the motor train unit real train wheel pair automatic wheel stopping mechanism provided by an embodiment of the present application is shown in the figure; Figure 3 The front view of the motor train unit real train wheel pair automatic wheel stopping mechanism provided by an embodiment of the present application is shown in the figure; Figure 4 The stop structure diagram provided by an embodiment of the present application is shown in the figure; Figure 5 The detection sensor installation diagram provided by an embodiment of the present application is shown in the figure.

[0016] The figure mark explanation: 100-real train wheel pair; 200-wheel stopper; 300-steel rail; 400-support frame; 201-mounting frame; 202-sliding block; 203-slideway; 204-lifting plate; 205-stop structure; 206-detection sensor; 207-lifting cylinder; 208-connection piece; 401-fixed plate. DETAILED DESCRIPTION

[0017] The following will be described in combination with the drawings Figures 1-5and the specific embodiments make further detailed description of the automatic wheel stopping mechanism of the motor train unit real wheel set. According to the following description, the advantages and features of the present application will be more apparent. It should be noted that the drawings are very simplified and all use non-precise proportions, only for the purpose of facilitating, clear and clear auxiliary description of the purpose, features and advantages of the present application. In order to make the purpose, features and advantages of the present application more obvious and easy to understand, please refer to the drawings. It should be noted that the structure, proportion, size and the like shown in the drawings attached to the present specification are only used to cooperate with the content disclosed in the specification, so that those skilled in the art can understand and read, and are not used to limit the implementation of the present application. The limitation condition, any modification of structure, change of proportion relationship or adjustment of size, without affecting the effect and purpose of the present application, should still fall within the scope of the technical content disclosed by the present application.

[0018] The present embodiment mainly solves the problems of low efficiency, insufficient precision and safety hazards in the prior art manual wheel stopping, and provides an automatic wheel stopping mechanism for motor train unit real wheel set, which can detect the wheel set placement in real time and accurately stop.

[0019] Reference Figures 1-3 As shown in the drawings, the present embodiment provides an automatic wheel stopping mechanism for motor train unit real wheel set, which comprises: two steel rails 300 arranged side by side, two steel rails 300 cooperating with real wheel set 100, used to simulate the actual track environment, avoid damage to real wheel set, support the placement and fixation of real wheel set; at least one wheel stopper 200, in the present embodiment, the wheel stopper 200 is installed on the outer side wall of the steel rail.

[0020] Each of the wheel stoppers 200 comprises: a mounting bracket 201, a lifting plate 204, a stopping structure 205, a driving mechanism, and a control and detection module. The mounting bracket 201 is arranged on one side of the steel rail 300, and the side wall of the mounting bracket 201 is provided with a sliding rail 203; the sliding rail 203 is arranged vertically and designed in the form of a linear guide rail. The lifting plate 204 is provided with a sliding block 202 matched with the sliding rail 203, and the sliding block 202 can move up and down along the sliding rail 203, so that the lifting plate 204 moves up and down along the mounting bracket 201. The stopping structure 205 is arranged on the lifting plate 204. The driving mechanism, the end of the driving mechanism is connected with the lifting plate 204, controls the lifting of the lifting plate 204, so that the stopping structure 205 is lifted to the stopping position. The control and detection module is connected with the driving mechanism, used to detect the placement of the real wheel set 100 and control the action of the driving mechanism, so as to realize the automatic wheel stopping of the real wheel set 100.

[0021] Specifically, referring to Figure 4As shown, the wheel stop structure 205 includes two rollers spaced apart, with their axes parallel. The central axes of the two rollers are fixed to the lifting plate 204, and the two rollers can rotate around their respective central axes. The distance between the two rollers is determined by the dimensions of the actual wheelset, and the dimensions of the two rollers are set according to the outer diameter and width of the actual wheelset. Since the rollers are circular and can rotate around their own central axes, the two rollers will not scratch the tread surface of the actual wheelset when performing wheel stop, and can also play a corrective role, keeping the actual wheelset in the center of the wheel stop 200. In this embodiment, the stopping position is the contact position where the two rollers are tangent to the tread surface of the actual wheelset 100.

[0022] Specifically, in this embodiment, the control and detection module includes a detection sensor 206 and a control module. The detection sensor 206 is disposed on the outer wall of the rail 300, for reference... Figure 5 As shown, the detection sensor 206 is located on the outer wall of the rail 300 and is positioned between the two rollers. The detection sensor 206 is configured to generate a signal jump when the tread of the actual wheelset 100 is blocked. The detection sensor 206 is preferably a photoelectric sensor or a proximity sensor, installed close to the outer side of the rail. When the actual wheelset is pushed in, the tread of the actual wheelset blocks the light beam or magnetic field, triggering a signal jump in the detection sensor 206. The control module is connected to both the detection sensor 206 and the drive mechanism. After receiving the signal jump, the control module controls the drive mechanism to operate.

[0023] Specifically, the drive mechanism includes a lifting cylinder 207 and a solenoid valve. The fixed end of the lifting cylinder 207 (i.e., the lower end of the lifting cylinder 207 in this embodiment, refer to...) Figure 3 As shown, the lifting cylinder 207 is fixedly installed with the mounting bracket 201. The free end of the lifting cylinder 207 (i.e., the upper end of the lifting cylinder 207 in this embodiment, as shown in the figure) is fixedly installed with the mounting bracket 201. Figure 3 (As shown) is connected to the lifting plate 204. The solenoid valve is connected to both the control module and the lifting cylinder 207. The solenoid valve receives the control signal from the control module to adjust the lifting height of the lifting cylinder 207.

[0024] Furthermore, the automatic wheel-stopping mechanism for train wheelsets provided in this embodiment also includes: a connecting member 208, the first end of which is disposed at the upper end of the lifting cylinder 207 and fixed to the upper end of the lifting cylinder 207, and the second end of the connecting member is connected to the lifting plate 204 (see reference). Figure 5 The inner side of the connecting member is connected to the lifting plate 204. When the lifting cylinder 207 moves, it drives the lifting plate 204 to move up and down through the connecting member 208.

[0025] The automatic wheel-stopping mechanism for train wheelsets provided in this embodiment further includes: a support frame 400 and a plurality of fixing plates 401. The plurality of fixing plates 401 are all disposed on the support frame 400, and the lower ends of the two rails 300 are respectively connected to the plurality of fixing plates 401. The fixing plates 401 are used to fix the two rails 300.

[0026] When the actual wheelset 100 is pushed onto the rail 300, the detection sensor 206 is blocked by the tread surface, generating a jump signal. Upon receiving the signal, the control module activates the solenoid valve, driving the lifting cylinder 207 to extend and push the lifting plate 204 upwards along the slide rail 203 until the double rollers of the wheel stop structure 205 are tangent to the wheelset tread surface, thus stopping the wheelset. When it is necessary to remove the actual wheelset, the control module controls the solenoid valve to activate the return signal, causing the lifting cylinder 207 to move downwards and retract the stop structure, which then descends below the plane of the upper surface of the rail. This prevents the wheelset from rolling across the rail. The entire process is automated and requires no manual intervention.

[0027] In summary, this embodiment proposes an automatic wheel-stopping mechanism for EMU wheelsets. By incorporating a wheel-stopping device, including a mounting frame, a lifting plate, wheel-stopping structural components, a drive mechanism, and a control and detection module, it achieves automatic detection and stopping of the actual wheelsets. This mechanism can automatically detect the placement position of the actual wheelsets and, through a cylinder-driven lifting plate, raise the wheel-stopping structural components to a position tangential to the wheelset tread surface, thereby effectively preventing wheelset rolling and improving operational efficiency; it avoids the risks of manual operation; this automatic wheel-stopping mechanism has a compact structure, is easy to install on existing rail systems, reduces maintenance costs, ensures the overall efficiency of EMU maintenance, and improves the overall automation level of EMU overhaul.

[0028] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0029] It should be noted that the apparatus and methods disclosed in the embodiments herein can also be implemented in other ways. The apparatus embodiments described above are merely illustrative; for example, the block diagrams in the accompanying drawings show apparatuses and methods according to various embodiments herein. It should be noted that combinations of blocks in the block diagrams can be used to perform specific functions or actions.

[0030] Although the present invention has been described in detail through the preferred embodiments above, it should be understood that the above description should not be considered as a limitation of the present invention. Various modifications and substitutions to the present invention will be apparent to those skilled in the art after reading the above description. Therefore, the scope of protection of the present invention should be defined by the appended claims.

Claims

1. A motor train set real vehicle wheel pair automatic wheel stopping mechanism, comprising: Two rails arranged side by side, the two rails are matched with a real wheel pair, characterized in that further comprising: a mounting frame arranged on one side of one of the rails, a side wall of the mounting frame is provided with a sliding rail; a lifting plate provided with a sliding block matched with the sliding rail, the lifting plate moves up and down along the mounting frame; a wheel stopping structure arranged on the lifting plate; a driving mechanism, an end of the driving mechanism is connected with the lifting plate, the driving mechanism controls the lifting plate to lift the wheel stopping structure to a stopping position; a control and detection module connected with the driving mechanism, the control and detection module detects the placement of the real wheel pair and controls the action of the driving mechanism to automatically stop the real wheel pair.

2. The EMU real train wheel pair automatic wheel stopping mechanism according to claim 1, characterized in that, The wheel stopping structure comprises two spaced apart rollers, and the axes of the two rollers are arranged in parallel.

3. The EMU real train wheel pair automatic wheel stopping mechanism of claim 2, wherein, The central axes of the two rollers are fixed with the lifting plate, and the two rollers can rotate around their respective central axes.

4. The EMU real train wheel pair automatic wheel stopping mechanism of claim 2, wherein, The stopping position is a contact position where the two rollers are tangent to the tread of the real wheel pair.

5. The EMU real train wheel pair automatic stopping mechanism according to claim 2, characterized in that, The distance between the two rollers is determined by the size of the real wheel pair.

6. The EMU real train wheel pair automatic stopping mechanism according to claim 1, wherein, The control and detection module comprises: a detection sensor arranged on the outer wall of the rail, the detection sensor is configured to generate a jump signal when the tread of the real wheel pair is blocked; a control module connected with the detection sensor and the driving mechanism respectively, the control module controls the action of the driving mechanism after receiving the jump signal.

7. The EMU real train wheel pair automatic wheel stopping mechanism of claim 6, wherein, The driving mechanism comprises: a lifting cylinder, a fixed end of the lifting cylinder is fixedly arranged with the mounting frame, and a free end of the lifting cylinder is connected with the lifting plate; a solenoid valve connected with the control module and the lifting cylinder respectively, the solenoid valve adjusts the lifting of the lifting cylinder after receiving the control signal of the control module.

8. The EMU real train wheel pair automatic wheel stopping mechanism of claim 7, wherein, Further comprising: a connecting piece, a first end of the connecting piece is arranged on the upper end of the lifting cylinder, and a second end of the connecting piece is connected with the lifting plate.

9. The EMU real train wheel pair automatic wheel stopping mechanism of claim 1, wherein, Further comprising: a support frame; a plurality of fixing plates, the plurality of fixing plates are arranged on the support frame, and the lower ends of the two rails are respectively connected with the plurality of fixing plates.

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