Metro vehicle traction mechanical protection device

Abstract

The utility model relates to the technical field of metro vehicles, in particular to a metro vehicle traction mechanical protection device which comprises an electric tractor, the front side of the bottom of the electric tractor is connected with a sweeping mechanism through bolts, and the top of the electric tractor is fixedly connected with a protection top cover. The left side and the right side of the electric tractor are connected with protective frames through bolts. The supporting vertical rods at the four corners of the bottom of the top cover body are inserted into the corresponding insertion vertical shells correspondingly, and positioning bolts are screwed to position the top cover body, so that the top of the electric tractor can be protected, and the situation that the electric tractor is damaged due to the fact that falling objects fall onto the electric tractor is avoided; a supporting sliding plate and a connecting sliding plate are pushed by collision to compress a buffer spring so that collision energy can be consumed, a damper can absorb impact force, vibration generated by impact is reduced, the trailer structure is buffered and protected, the trailer structure can be prevented from being damaged after being used for many times, and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of subway vehicles, in particular to a traction machinery protection device for subway vehicles. Background Art

[0002] Subway vehicles are the means of transportation used by subways to transport passengers. They belong to the category of urban rapid rail transit and are an important part of the urban rail transit system. They are reliable and practical. When a subway vehicle needs to be repaired, a tractor is needed to tow it to the maintenance workshop.

[0003] After searching, the patent number is CN219115451U, and the name is a utility model of a tractor for railway vehicle maintenance, which includes a vehicle body, a hook is fixedly installed on one side of the vehicle body, and a cab, an electrical room and a power supply room are respectively installed on the top of the vehicle body. Through research and analysis, it is found that although the adhesion of the tractor can be improved, by cleaning the rails that the tractor will pass during the movement, it can prevent foreign objects from existing next to the rails and reduce the possibility of danger to the tractor, but to a certain extent, the following defects still exist.

[0004] For example, due to poor protection performance, the tractor needs to reverse to connect with the hook of the subway vehicle. During the reversing process, the hook of the subway vehicle will hit the trailer structure of the tractor due to inertia. Since it does not have the function of buffering protection, it will become loose or damaged after a long period of impact, seriously affecting its service life. At the same time, it is impossible to monitor and alarm objects approaching on both sides of the tractor. In order to solve the above technical problems, we have designed a subway vehicle traction machinery protection device. Utility Model Content

[0005] The utility model aims to provide a subway vehicle traction machinery protection device, which has the advantages of better protection effect, can provide buffer protection for trailer parts, extend service life, can monitor objects approaching on both sides and issue an alarm, and is safer during driving. It solves the problems of poor protection effect, inability to provide buffer protection for trailer parts, affecting service life, and inability to monitor and alarm objects approaching on both sides of the tractor.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a subway vehicle traction mechanical protection device, comprising an electric tractor, a cleaning mechanism is connected to the front side of the bottom of the electric tractor by bolts, a protective top cover is fixedly connected to the top of the electric tractor, protective frames are connected to the left and right sides of the electric tractor by bolts, an ultrasonic ranging sensor is connected to the outside of the protective frame by bolts, alarms are connected to the rear sides of the front and rear sides of the electric tractor by bolts, a buffer protection mechanism is connected to the bottom of the rear side of the electric tractor by bolts, and a trailer structure is connected to the rear side of the buffer protection mechanism by bolts.

[0007] Preferably, the protective top cover comprises four plug-in vertical shells, the top of the plug-in vertical shells is slidably connected with a supporting vertical rod, the top of the supporting vertical rod is fixedly connected with a top cover body, and the outer side of the plug-in vertical shells is threadedly connected with a positioning bolt.

[0008] Preferably, the cleaning mechanism includes an electric push rod, the number of the electric push rods is two, and they are respectively fixedly connected to the left and right sides of the electric tractor, the bottom of the electric push rod is connected to a connecting shell by bolts, the bottom of the connecting shell is connected to a cleaning brush by bolts, and the front side of the connecting shell is connected to a front baffle by bolts.

[0009] Preferably, the buffer protection mechanism includes a fixed shell and a damper, the front side of the inner cavity of the fixed shell is fixedly connected to a buffer spring, the rear side of the buffer spring is fixedly connected to a connecting slide, the rear side of the connecting slide is fixedly connected to a supporting slide, and the rear side of the supporting slide passes through the outside of the fixed shell and is fixedly connected to the trailer structure.

[0010] Preferably, there are two fixing shells, which are distributed on the left and right sides of the damper, and the rear side of the damper is fixedly connected to the trailer structure.

[0011] Preferably, a warning light is connected to the front side of the top of the electric tractor by bolts, and intelligent controllers are connected to the rear sides of the left and right sides of the electric tractor by bolts, the output end of the intelligent controller is electrically connected to the alarm, and the output end of the ultrasonic ranging sensor is electrically connected to the intelligent controller.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] The supporting vertical rods at the four corners of the bottom of the top cover body are respectively inserted into the corresponding plug-in vertical shells, and the positioning bolts are tightened to position them. This can protect the top of the electric tractor to prevent falling objects from falling on the electric tractor and causing damage to it. The impact pushes the supporting slide plate and the connecting slide plate to compress the buffer spring to consume the energy of the impact. The damper can absorb the impact force and reduce the vibration caused by the impact. By providing buffering protection for the trailer structure, the trailer structure can be prevented from being damaged after repeated use and its service life can be extended.

[0014] The ultrasonic ranging sensors on both sides can monitor people walking on both sides of the track. When a person approaches, the signal is transmitted to the intelligent controller. The intelligent controller receives the signal and controls the alarm to sound an alarm. After the alarm sounds, it can remind the approaching people to avoid being injured by being too close to the electric traction vehicle, which serves as an early warning. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is an axonometric drawing of the structure of the utility model;

[0016] Figure 2 It is a rear axonometric view of the structure of the utility model;

[0017] Figure 3 It is a sectional isometric view of the buffer protection mechanism of the utility model;

[0018] Figure 4 It is a bottom-up axonometric drawing of the structure of the utility model.

[0019] In the figure: 1. Electric tractor; 2. Cleaning mechanism; 3. Protective frame; 4. Ultrasonic ranging sensor; 5. Alarm; 6. Intelligent controller; 7. Protective top cover; 8. Top cover body; 9. Support vertical rod; 10. Positioning bolt; 11. Plug-in vertical shell; 12. Warning light; 13. Buffer protection mechanism; 14. Trailer structure; 15. Fixed shell; 16. Damper; 17. Support slide plate; 18. Buffer spring; 19. Connecting slide plate; 20. Front baffle; 21. Connecting shell; 22. Cleaning brush; 23. Electric push rod. DETAILED DESCRIPTION

[0020] See also Figure 1-Figure 4A subway vehicle traction mechanical protection device comprises an electric tractor 1, a cleaning mechanism 2 is connected to the front side of the bottom of the electric tractor 1 by bolts, a protective top cover 7 is fixedly connected to the top of the electric tractor 1, a protective frame 3 is connected to the left and right sides of the electric tractor 1 by bolts, an ultrasonic distance sensor 4 is connected to the outer side of the protective frame 3 by bolts, an alarm 5 is connected to the rear side of the front and rear sides of the electric tractor 1 by bolts, a buffer protection mechanism 13 is connected to the bottom of the rear side of the electric tractor 1 by bolts, and a trailer structure 14 is connected to the rear side of the buffer protection mechanism 13 by bolts;

[0021] See also Figure 1 The protective top cover 7 includes a plug-in vertical shell 11, and the number of the plug-in vertical shells 11 is four. The top of the plug-in vertical shell 11 is slidably connected with a support vertical rod 9, and the top of the support vertical rod 9 is fixedly connected with the top cover body 8. The outer side of the plug-in vertical shell 11 is threadedly connected with a positioning bolt 10. By setting the plug-in vertical shell 11, the function of limited installation is provided, which can facilitate the plugging and positioning of the support vertical rod 9;

[0022] See also Figure 4 The cleaning mechanism 2 includes an electric push rod 23, the number of which is two and fixedly connected to the left and right sides of the electric tractor 1 respectively. The bottom of the electric push rod 23 is connected to a connecting shell 21 by bolts, the bottom of the connecting shell 21 is connected to a cleaning brush 22 by bolts, and the front side of the connecting shell 21 is connected to a front baffle 20 by bolts. By setting the cleaning mechanism 2, the function of cleaning obstacles and impurities is achieved. The cleaning brush 22 and the front baffle 20 are pushed downward by controlling the electric push rod 23 to make the cleaning brush 22 contact with the rail to clean the surface impurities, and the front baffle 20 can push away the objects on the rail, so as to facilitate the travel of the electric tractor 1.

[0023] See also Figure 3 The buffer protection mechanism 13 includes a fixed shell 15 and a damper 16. The front side of the inner cavity of the fixed shell 15 is fixedly connected with a buffer spring 18. The rear side of the buffer spring 18 is fixedly connected with a connecting slide 19. The rear side of the connecting slide 19 is fixedly connected with a supporting slide 17. The rear side of the supporting slide 17 penetrates the outer side of the fixed shell 15 and is fixedly connected to the trailer structure 14. By setting the connecting slide 19, the function of connecting support is provided, which can facilitate the buffer spring 18 to push the supporting slide 17 to move;

[0024] See also Figure 3 There are two fixed shells 15, which are distributed on the left and right sides of the damper 16, and the rear side of the damper 16 is fixedly connected to the trailer structure 14;

[0025] See also Figure 1A warning light 12 is connected to the front side of the top of the electric tractor 1 by bolts, and an intelligent controller 6 is connected to the rear sides of the left and right sides of the electric tractor 1 by bolts. The output end of the intelligent controller 6 is electrically connected to the alarm 5, and the output end of the ultrasonic ranging sensor 4 is electrically connected to the intelligent controller 6.

[0026] When in use, the personnel insert the supporting vertical rods 9 at the four corners of the bottom of the top cover body 8 into the corresponding plug-in vertical shells 11 respectively, and tighten the positioning bolts 10 to position it, so that the top of the electric tractor 1 can be protected to prevent falling objects from falling on the electric tractor 1 and causing damage to it, and control the electric tractor 1 to move backward to connect with the hook of the subway vehicle. When the hook is inserted into the trailer structure 14, the backward inertia will make the hook touch the trailer structure 14 and cause a collision. At this time, the kinetic energy generated by the collision pushes the supporting slide plate 17 and the connecting slide plate 19 to compress the buffer spring 18. The buffer spring 18 can consume the kinetic energy during the compression process. At the same time, the damper 16 can absorb the impact force and reduce the vibration caused by the impact. By buffering and protecting the trailer structure 14, the trailer structure 14 can be prevented from being damaged after repeated use, thereby extending the service life. During the process of the electric tractor 1 pulling the subway vehicle, the ultrasonic ranging sensors 4 on both sides can monitor the people walking on both sides of the track. When it is detected that a person has reached a preset distance, the signal is transmitted to the intelligent controller 6. The intelligent controller 6 receives the signal and controls the alarm 5 to emit an alarm. After the alarm sounds, it can prompt the approaching personnel to avoid being injured by being too close to the electric tractor 1, which plays a warning function.

[0027] In summary: the subway vehicle traction mechanical protection device, through the coordinated use of the electric tractor 1, the protection frame 3, the ultrasonic ranging sensor 4, the alarm 5, the intelligent controller 6, the protection top cover 7 and the buffer protection mechanism 13, solves the problems of poor protection effect, inability to provide buffer protection for trailer parts, affecting service life, and inability to monitor and alarm objects approaching on both sides of the tractor.

Claims

1. A subway vehicle traction mechanical protection device, comprising an electric traction vehicle (1), characterized in that: The front side of the bottom of the electric tractor (1) is connected to a cleaning mechanism (2) by bolts, the top of the electric tractor (1) is fixedly connected to a protective top cover (7), the left and right sides of the electric tractor (1) are connected to protective frames (3) by bolts, the outer side of the protective frame (3) is connected to an ultrasonic distance sensor (4) by bolts, the rear sides of the front and rear sides of the electric tractor (1) are connected to alarms (5) by bolts, the bottom of the rear side of the electric tractor (1) is connected to a buffer protection mechanism (13) by bolts, and the rear side of the buffer protection mechanism (13) is connected to a trailer structure (14) by bolts.

2. A subway vehicle traction mechanical protection device according to claim 1, characterized in that: The protective top cover (7) comprises a plug-in vertical shell (11), the number of the plug-in vertical shells (11) is four, the top of the plug-in vertical shell (11) is penetrated by a supporting vertical rod (9) for sliding connection, the top of the supporting vertical rod (9) is fixedly connected to the top cover body (8), and the outer side of the plug-in vertical shell (11) is penetrated by a positioning bolt (10) for threaded connection.

3. The subway vehicle traction mechanical protection device according to claim 1, characterized in that: The cleaning mechanism (2) comprises an electric push rod (23), the number of the electric push rods (23) being two and respectively fixedly connected to the left and right sides of the electric tractor (1), the bottom of the electric push rod (23) being connected to a connecting shell (21) via bolts, the bottom of the connecting shell (21) being connected to a cleaning brush (22) via bolts, and the front side of the connecting shell (21) being connected to a front baffle (20) via bolts.

4. A subway vehicle traction mechanical protection device according to claim 1, characterized in that: The buffer protection mechanism (13) comprises a fixed shell (15) and a damper (16); a buffer spring (18) is fixedly connected to the front side of the inner cavity of the fixed shell (15); a connecting slide plate (19) is fixedly connected to the rear side of the buffer spring (18); a supporting slide plate (17) is fixedly connected to the rear side of the connecting slide plate (19); and the rear side of the supporting slide plate (17) passes through the outer side of the fixed shell (15) and is fixedly connected to the trailer structure (14).

5. A subway vehicle traction mechanical protection device according to claim 4, characterized in that: The number of the fixed shells (15) is two and they are distributed on the left and right sides of the damper (16); the rear side of the damper (16) is fixedly connected to the trailer structure (14).

6. The subway vehicle traction mechanical protection device according to claim 1, characterized in that: A warning light (12) is bolted to the front side of the top of the electric tractor (1), and an intelligent controller (6) is bolted to the rear sides of the left and right sides of the electric tractor (1), the output end of the intelligent controller (6) is electrically connected to the alarm (5), and the output end of the ultrasonic distance measuring sensor (4) is electrically connected to the intelligent controller (6).

Images