Emergency brake device for rail vehicle

Abstract

The utility model belongs to the field of brake device, concretely relates to a rail transit vehicle emergency brake device, including the trolley of placing on the track, the front end fixed connection of trolley has hollow shell, the left and right sides of hollow shell all are connected with slide column sliding, and slide column passes through the setting of hollow shell, the one end fixed connection of slide column is located in the outside of hollow shell has brake block, the position of brake block corresponds with the track, the one end fixed connection of slide column is located in the inside of hollow shell has inclined surface seat. The utility model sets up hollow shell at the front end of trolley, sets up by the lifting pie of hydraulic cylinder drive on hollow shell, pie then simultaneously exerts the lateral thrust to two inclined surface seats, so that inclined surface seat drives brake block horizontal shift through slide column, and make brake block resist to the place of track, utilize the friction between brake block and track and make trolley emergency stop.

Description

Technical Field

[0001] This utility model relates to the field of braking device technology, specifically an emergency braking device for rail transit vehicles. Background Technology

[0002] Mining railcars are commonly used equipment in underground mining transportation systems, primarily for short-distance transport of materials, ore, or personnel. However, during operation, mining railcars may encounter unexpected situations requiring emergency braking.

[0003] A search revealed a utility model patent with patent authorization announcement number CN206307047U, which discloses an emergency braking device for rail transit vehicles, including a movable telescopic rod, a transverse transmission rod, a brake pad transmission connecting rod, brake pads, and an electromagnetic block. The lower end of the movable telescopic rod is connected to a piston in the main hydraulic chamber, and transverse connecting rods are connected to both sides of the lower end of the main hydraulic chamber. The transverse transmission rod is installed inside the transverse connecting rod, and a brake pad transmission connecting rod is installed on the outer rear part of the transverse connecting rod.

[0004] The existing emergency braking devices for rail transit vehicles are complex in structure and inconvenient to use. In addition, debris on the track can affect the normal movement of the railcar, and the existing emergency braking devices for rail transit vehicles lack the function of clearing debris. Utility Model Content

[0005] The purpose of this utility model is to provide an emergency braking device for rail transit vehicles, which solves the problems of existing emergency braking devices for rail transit vehicles being complex in structure and inconvenient to use, and also solves the problem of existing emergency braking devices for rail transit vehicles lacking the function of clearing debris.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an emergency braking device for rail transit vehicles, comprising a trolley placed on a track, a hollow shell fixedly connected to the front end of the trolley, sliding columns slidably connected to both sides of the hollow shell, the sliding columns penetrating the hollow shell, a brake block fixedly connected to the outer end of the sliding column, the brake block corresponding to the position of the track, an inclined seat fixedly connected to the inner end of the sliding column, a hydraulic cylinder mounted on the top of the hollow shell, the telescopic shaft of the hydraulic cylinder penetrating the hollow shell and slidably connected to the hollow shell, a disc fixedly connected to the end of the telescopic shaft, the disc abutting against the inclined seat.

[0007] Preferably, a guide post is fixedly connected to the inner wall of the hollow shell, and the guide post is slidably connected to the inclined seat. A spring is installed inside the inclined seat. The guide post guides the lateral movement of the inclined seat under force.

[0008] Preferably, one end of the first spring is fixedly connected to the guide post, and the other end of the first spring is fixedly connected to the inner surface of the inclined plane seat. By providing the first spring, the reaction force can be applied back to the inclined plane seat, thus assisting in its repositioning.

[0009] Preferably, a fixed shell is fixedly connected to the front end of the hollow shell, and a motor is fixedly installed on the top of the fixed shell. The output shaft of the motor passes through the fixed shell and is connected to the fixed shell via a bearing. A rotating shaft is fixedly connected to the end of the output shaft, and a rotary wheel is fixedly connected to the end of the rotating shaft. Push rods are slidably connected to both sides of the fixed shell, and connecting plates are fixedly connected to the ends of the push rods. The connecting plates abut against the rotary wheels. The rotating shaft is driven to rotate by the motor, thereby causing the rotary wheels to periodically apply lateral thrust to the connecting plates and push rods.

[0010] Preferably, a guide frame is fixedly connected to the inner wall of the fixed shell, the guide frame is slidably connected to the push rod, and a guide rod is fixedly connected inside the push rod, the guide rod passing through the guide frame and slidably connected to the guide frame. The guide frame and guide rod provide guidance for the extension and retraction of the push rod.

[0011] Preferably, a second spring is sleeved on the outer side of the guide rod. One end of the second spring is fixedly connected to the guide frame, and the other end is fixedly connected to the inner surface of the push rod. The second spring allows the reaction force to be applied back to the push rod.

[0012] Preferably, a fixing rod is fixedly connected to the inner wall of the fixed shell, and a retaining sleeve is fixedly connected to the end of the fixing rod. The rotating shaft passes through the retaining sleeve and is connected to the retaining sleeve via a bearing. The fixing rod and retaining sleeve serve to maintain the axis of rotation of the rotating shaft.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model provides a hollow shell at the front end of the trolley, on which a lifting disc driven by a hydraulic cylinder is mounted. The disc simultaneously applies a lateral thrust to two inclined seats, causing the inclined seats to move the brake block laterally via a sliding column, and causing the brake block to contact the track. The friction between the brake block and the track allows the trolley to come to an emergency stop.

[0015] 2. This utility model has a fixed shell at the front end of the hollow shell. The fixed shell has a rotating wheel driven by an electric motor. During the rotation of the wheel, it can periodically push the push rod. At the same time, the push rod is reset by the action of the spring. This process is repeated, so that the push rod can be extended and retracted repeatedly. This allows the track to be cleaned during the movement of the trolley, so as to avoid debris on the track from affecting the normal movement of the trolley. Attached Figure Description

[0016] Figure 1 This is a perspective view of the overall structure of this utility model;

[0017] Figure 2 This utility model Figure 1 A partial structural diagram;

[0018] Figure 3 This utility model Figure 1 A front sectional view of a hollow shell structure;

[0019] Figure 4 This utility model Figure 1 A front sectional view of a fixed shell structure;

[0020] Figure 5 This utility model Figure 4 Enlarged view of point A.

[0021] In the diagram: 1. Track; 2. Trolley; 3. Hollow shell; 4. Sliding column; 5. Brake block; 6. Inclined seat; 7. Hydraulic cylinder; 8. Disc; 61. Guide column; 62. Spring 1; 9. Fixed shell; 10. Motor; 11. Rotating shaft; 12. Lobe wheel; 13. Push rod; 14. Connecting plate; 15. Guide frame; 16. Guide rod; 17. Spring 2; 18. Fixed rod; 19. Retaining sleeve. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-3 An emergency braking device for rail transit vehicles includes a trolley 2 placed on a track 1. A hollow shell 3 is fixedly connected to the front end of the trolley 2. Sliding columns 4 are slidably connected to both sides of the hollow shell 3, and the sliding columns 4 penetrate the hollow shell 3. A brake block 5 is fixedly connected to the outer end of the sliding column 4 of the hollow shell 3. The brake block 5 corresponds to the position of the track 1. An inclined seat 6 is fixedly connected to the inner end of the sliding column 4 of the hollow shell 3. A hydraulic cylinder 7 is installed on the top of the hollow shell 3. The telescopic shaft of the hydraulic cylinder 7 penetrates the hollow shell 3 and is slidably connected to the hollow shell 3. A disc 8 is fixedly connected to the end of the telescopic shaft. The disc 8 abuts against the inclined seat 6.

[0024] Please see Figure 3A guide post 61 is fixedly connected to the inner wall of the hollow shell 3. The guide post 61 is slidably connected to the inclined seat 6, and a spring 62 is installed inside the inclined seat 6. The guide post 61 guides the lateral movement of the inclined seat 6 under force. One end of the spring 62 is fixedly connected to the guide post 61, and the other end is fixedly connected to the inner surface of the inclined seat 6. The spring 62 can return the reaction force to the inclined seat 6, thus assisting in its reset.

[0025] Please see Figure 1 , Figure 4 , Figure 5 A fixed shell 9 is fixedly connected to the front end of the hollow shell 3. A motor 10 is fixedly installed on the top of the fixed shell 9. The output shaft of the motor 10 passes through the fixed shell 9 and is connected to the fixed shell 9 via a bearing. A rotating shaft 11 is fixedly connected to the end of the output shaft. A waist wheel 12 is fixedly connected to the end of the rotating shaft 11. Push rods 13 are slidably connected to both sides of the fixed shell 9, and a connecting plate 14 is fixedly connected to the end of the push rod 13. The connecting plate 14 abuts against the waist wheel 12. The rotating shaft 11 is driven to rotate by the motor 10, thereby causing the waist wheel 12 to periodically apply a lateral thrust to the connecting plate 14 and the push rod 13. A guide frame 15 is fixedly connected to the inner wall of the fixed shell 9. The guide frame 15 is slidably connected to the push rod 13. A guide rod 16 is fixedly connected inside the push rod 13. The guide rod 16 passes through the guide frame 15 and is slidably connected to the guide frame 15. The guide frame 15 and the guide rod 16 provide guidance for the extension and retraction of the push rod 13. A second spring 17 is fitted onto the outer side of the guide rod 16. One end of the second spring 17 is fixedly connected to the guide frame 15, and the other end is fixedly connected to the inner surface of the push rod 13. The second spring 17 allows the reaction force to be applied back to the push rod 13. A fixing rod 18 is fixedly connected to the inner wall of the fixed housing 9. A retaining sleeve 19 is fixedly connected to the end of the fixing rod 18. The rotating shaft 11 passes through the retaining sleeve 19 and is connected to the retaining sleeve 19 via a bearing. The fixing rod 18 and the retaining sleeve 19 serve to maintain the axis of rotation of the rotating shaft 11.

[0026] The specific implementation process of this utility model is as follows: In use, the trolley 2 will move normally on the track 1. At the same time, the waist wheel 12 driven by the motor 10 will rotate. During the rotation of the waist wheel 12, it can periodically push the push rod 13. At the same time, the push rod 13 will be reset under the action of the spring 17. This process is repeated, so that the push rod 13 will extend and retract repeatedly. Thus, the track 1 can be cleaned during the movement of the trolley 2, so that the debris on the track 1 will not affect the normal movement of the trolley 2. In addition, the disc 8 is driven to move down by the hydraulic cylinder 7. The disc 8 will simultaneously apply a lateral pushing force to the two inclined seats 6, so that the inclined seats 6 drive the brake block 5 to move laterally through the sliding column 4, and make the brake block 5 contact the track 1. The friction between the brake block 5 and the track 1 will make the trolley 2 stop urgently.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An emergency braking device for rail transit vehicles, comprising a trolley (2) placed on a track (1), characterized in that: The front end of the trolley (2) is fixedly connected to a hollow shell (3). Sliding columns (4) are slidably connected to both the left and right sides of the hollow shell (3), and the sliding columns (4) are set through the hollow shell (3). A brake block (5) is fixedly connected to one end of the sliding column (4) located outside the hollow shell (3). The position of the brake block (5) corresponds to that of the track (1). An inclined seat (6) is fixedly connected to one end of the sliding column (4) located inside the hollow shell (3). A hydraulic cylinder (7) is installed on the top of the hollow shell (3). The telescopic shaft of the hydraulic cylinder (7) passes through the hollow shell (3) and is slidably connected to the hollow shell (3). A disc (8) is fixedly connected to the end of the telescopic shaft. The disc (8) abuts against the inclined seat (6).

2. The emergency braking device for rail transit vehicles according to claim 1, characterized in that: The hollow shell (3) has a guide post (61) fixedly connected to its inner wall. The guide post (61) is slidably connected to the inclined seat (6). The inclined seat (6) has a spring (62) inside it.

3. The emergency braking device for rail transit vehicles according to claim 2, characterized in that: One end of the spring (62) is fixedly connected to the guide post (61), and the other end of the spring (62) is fixedly connected to the inner surface of the inclined seat (6).

4. The emergency braking device for rail transit vehicles according to claim 1, characterized in that: The front end of the hollow shell (3) is fixedly connected to a fixed shell (9), and a motor (10) is fixedly installed on the top of the fixed shell (9). The output shaft of the motor (10) passes through the fixed shell (9) and is connected to the fixed shell (9) through a bearing. The end of the output shaft is fixedly connected to a rotating shaft (11), and the end of the rotating shaft (11) is fixedly connected to a waist wheel (12). Push rods (13) are slidably connected to both the left and right sides of the fixed shell (9), and the end of the push rods (13) is fixedly connected to a connecting plate (14). The connecting plate (14) abuts against the waist wheel (12).

5. An emergency braking device for rail transit vehicles according to claim 4, characterized in that: The inner wall of the fixed shell (9) is fixedly connected to a guide frame (15), the guide frame (15) is slidably connected to the push rod (13), the push rod (13) is fixedly connected to a guide rod (16), the guide rod (16) passes through the guide frame (15) and is slidably connected to the guide frame (15).

6. An emergency braking device for rail transit vehicles according to claim 5, characterized in that: A second spring (17) is sleeved on the outside of the guide rod (16). One end of the second spring (17) is fixedly connected to the guide frame (15), and the other end of the second spring (17) is fixedly connected to the inner surface of the push rod (13).

7. An emergency braking device for rail transit vehicles according to claim 4, characterized in that: A fixing rod (18) is fixedly connected to the inner wall of the fixed shell (9), and a retaining sleeve (19) is fixedly connected to the end of the fixing rod (18). The rotating shaft (11) passes through the retaining sleeve (19) and is connected to the retaining sleeve (19) through a bearing.

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