Derailing collision energy absorption protection device

Abstract

The utility model discloses a derailment collision energy absorption protection device which comprises a subway bullet train and a tunnel, a derailment detection sensor used for detecting whether the subway bullet train derails or not is installed on a bogie of the subway bullet train, and when the subway bullet train derails, the derailment detection sensor transmits a signal to a subway bullet train system. If yes, the metro bullet train system immediately sends a signal to a metro bullet train control system to trigger emergency braking of the metro bullet train to decelerate the metro bullet train, meanwhile, the self-locking hook is controlled to be mutually clamped and fixed with a fixing rod on the metro bullet train in a running state, the running metro bullet train pulls out the traction steel wire traction rope, and the metro bullet train is driven by the traction steel wire traction rope. The forward force of the metro bullet train is reduced through inertia of the counterweight rollers, kinetic energy of the metro bullet train can be absorbed, the speed of the metro bullet train is reduced, the metro bullet train can be controlled to make contact with a rail, and the derailing possibility of the metro bullet train is reduced through cooperation with an emergency braking assembly of the metro bullet train.

Description

TECHNICAL FIELD

[0001] The utility model relates to subway motor car protection technical field, concretely is a kind of derailment collision energy absorption protection device. BACKGROUND

[0002] The use of subway motor car greatly improves people's quality of life, and facilitates people's travel. In the process of subway motor car driving, derailment accidents of subway motor car may occur due to operation errors or excessive driving speed, which may cause serious casualties and property losses.

[0003] In the prior art, a derailment detection sensor for detecting whether the subway motor car derails is installed on the bogie of the subway motor car. The bogie is monitored by the derailment detection sensor to determine whether the train is running on the track. The derailment detection sensor transmits the detected signal to the vehicle control system to trigger the emergency braking of the train and stop the train running to ensure the safety of the train. However, the kinetic energy of the train cannot be effectively absorbed by the emergency braking of the train, and the train still slides a long distance, resulting in poor energy absorption effect. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of derailment collision energy absorption protection device to solve the problems raised in the above background.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a kind of derailment collision energy absorption protection device, including subway motor car and tunnel, the bogie of the subway motor car is installed for detecting whether the derailment detection sensor of subway motor car derails, the side of the subway motor car corresponds the side position of each car compartment and is fixedly installed with fixed rod, the installation slot is set up on the tunnel, the inside of the tunnel corresponding installation slot is fixedly installed with fixed frame, the middle part of the fixed frame is fixedly installed with fixed shaft, the bottom outer side of the fixed shaft is rotatably installed with counterweight roller, the top outer side of the fixed shaft is rotatably installed with steel wire rope wheel, the steel wire rope wheel can be always synchronous with counterweight roller Rotation and intermittent synchronous rotation, the inside of the steel wire rope wheel is wound with steel wire traction rope, the inside of the tunnel corresponding installation slot is movably installed with fixed block, the side of the fixed block is fixedly installed with self-locking hook, one end of the steel wire traction rope is fixedly connected with fixed block, and the self-locking hook is fixed with the fixed rod.

[0006] As a further preferred embodiment of the present technical solution, the top end of the counterweight roller is provided with a synchronous hole in a ring array around the central axis of the counterweight roller, and the bottom end of the steel wire rope wheel is fixedly installed with a synchronous rod in a ring array around the central axis of the steel wire rope wheel, and the synchronous rod is slidably inserted into the synchronous hole.

[0007] As a further preferred of the technical solution, the top end of the synchronization hole is provided with a chamfer, the bottom end of the synchronization rod is provided with a round corner, and the round corner is in extrusion contact with the chamfer, the top end outer side of the fixed shaft is slidably installed with a mounting ring, and the top end outer side of the fixed shaft is sleeved with an extrusion spring, one end of the extrusion spring is fixedly connected with the mounting ring, and the other end of the extrusion spring is fixedly connected with the top end inner wall of the fixed frame.

[0008] As a further preferred of the technical solution, the middle part of the fixed shaft is fixedly installed with a supporting ring for supporting the bottom end of the steel wire rope wheel.

[0009] As a further preferred of the technical solution, the inside of the tunnel corresponding mounting groove is fixedly installed with an electric push rod, the moving end of the electric push rod is fixedly installed with a magnet, and the magnet is fixedly magnetized with one side of the fixed block.

[0010] As a further preferred of the technical solution, the inside of the tunnel corresponding mounting groove is fixedly installed with a positioning rod, and the steel wire traction rope is arranged between the two positioning rods.

[0011] As a further preferred of the technical solution, the end of the steel wire traction rope is not fixedly connected with the middle part of the steel wire rope wheel.

[0012] The utility model provides a kind of derailment collision energy absorption protection device, with the following beneficial effects:

[0013] (1) the utility model discloses a derailment detection sensor on the bogie of subway motor car detects whether subway motor car derails, when subway motor car derails, the derailment detection sensor passes signal to subway motor car system, then the subway motor car system immediately sends signal to subway motor car control system, triggers the emergency brake of subway motor car, for the deceleration of subway motor car, at the same time, control self-locking hook and fixed rod on the subway motor car in running state are mutually clamped and fixed, and the subway motor car is pulled out by traction steel wire traction rope, and the inertia of counterweight roller reduces the advancing force of subway motor car, the kinetic energy of subway motor car can be absorbed, the speed of subway motor car is reduced, subway motor car can be controlled to contact with rail, by cooperating with the emergency brake assembly of subway motor car, the possibility of subway motor car derailment is reduced.

[0014] (2) the utility model discloses a fixed pole on the subway car in the running state is mutually clamped and fixed after the self-locking hook on the fixed block is driven, and the subway car in running pulls out the steel wire traction rope, when the self-locking hook and the fixed pole are primarily connected, the counterweight roller is in the static state, and the subway car in running pulls out the steel wire rope wheel, drives the steel wire rope wheel to rotate, the fillet of the low end of the synchronous rod extrudes the chamfer of the top of the synchronous hole, and the counterweight roller is pressed down through the extrusion of the fillet and the chamfer, the synchronous rod is intermittently inserted into and slides out of the synchronous hole, is used to primarily drive the counterweight roller to rotate and control the counterweight roller to rotate faster and faster, and then the advancing force of the subway car is primarily reduced, with the rotation of the counterweight roller, the synchronous rod can be stably inserted into the inside of the synchronous hole, and the synchronous rotation of the steel wire rope wheel and the counterweight roller is controlled, the advancing force of the subway car is further reduced through the inertial rotation of the counterweight roller, the kinetic energy of the subway car can be absorbed, the speed of the subway car is reduced, and the gradually and continuously stable deceleration of the subway car through the counterweight roller is realized. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the overall structure schematic diagram of the utility model;

[0016] Figure 2 It is the local structure schematic diagram of the utility model;

[0017] Figure 3 It is the local sectional structure schematic diagram of the utility model;

[0018] Figure 4 It is the structure schematic diagram of the fixed stand of the utility model;

[0019] In the drawing: 1, subway car;2, tunnel;3, fixed pole;4, installation slot;5, fixed stand;6, fixed shaft;7, counterweight roller;8, steel wire rope wheel;9, steel wire traction rope;10, fixed block;11, self-locking hook;12, synchronous hole;13, synchronous rod;14, chamfer;15, fillet;16, installation ring;17, extrusion spring;18, support ring;19, electric push rod;20, magnet;21, positioning rod. DETAILED DESCRIPTION

[0020] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model.

[0021] The utility model provides technical scheme: such as Figures 1 to 4As shown in the embodiment, a derailment collision energy absorption protection device includes a subway motor car 1 and a tunnel 2, a derailment detection sensor for detecting whether the subway motor car 1 derails is installed on the bogie of the subway motor car 1, a fixed rod 3 is fixedly installed on one side of each car of the subway motor car 1, an installation groove 4 is formed in the tunnel 2, a fixed frame 5 is fixedly installed in the inside of the installation groove 4 of the tunnel 2, a fixed shaft 6 is fixedly installed in the middle of the fixed frame 5, a counterweight roller 7 is rotatably installed on the outside of the bottom end of the fixed shaft 6, a steel wire rope wheel 8 is rotatably installed on the outside of the top end of the fixed shaft 6, the steel wire rope wheel 8 can rotate at all times synchronously and intermittently synchronously with the counterweight roller 7, a steel wire traction rope 9 is wound in the inside of the steel wire rope wheel 8, a fixed block 10 is movably installed in the inside of the installation groove 4 of the tunnel 2, a self-locking hook 11 is fixedly installed on one side of the fixed block 10, one end of the steel wire traction rope 9 is fixedly connected with the fixed block 10, the self-locking hook 11 is fixed with the fixed rod 3, whether the subway motor car 1 derails is detected by the derailment detection sensor on the bogie of the subway motor car 1, when the subway motor car 1 derails, the derailment detection sensor transmits a signal to the subway motor car 1 system, then the subway motor car 1 system immediately sends a signal to the subway motor car 1 control system, triggers the emergency brake of the subway motor car 1, for slowing down the subway motor car 1, at the same time, the self-locking hook 11 and the fixed rod 3 on the subway motor car 1 in the running state are mutually clamped and fixed, the running subway motor car 1 pulls out the steel wire traction rope 9, the inertia of the counterweight roller 7 reduces the advancing force of the subway motor car 1, the kinetic energy of the subway motor car 1 can be absorbed, the speed of the subway motor car 1 is reduced, the subway motor car 1 can be controlled to contact the rail, and the possibility of the subway motor car 1 derailing is reduced.

[0022] As shown in the embodiment, Figures 1 to 4 the top end of the counterweight roller 7 is annularly arrayed with a synchronous hole 12 with the central axis of the counterweight roller 7 as the shaft, the bottom end of the steel wire rope wheel 8 is fixedly installed with a synchronous rod 13 in an annular array with the central axis of the steel wire rope wheel 8 as the shaft, and the synchronous rod 13 and the synchronous hole 12 are slidably inserted.

[0023] After the self-locking hook 11 and the fixed rod 3 on the subway motor car 1 in the running state are mutually clamped and fixed, the running subway motor car 1 pulls out the steel wire traction rope 9, drives the steel wire rope wheel 8 to rotate, and transmits the advancing force of the subway motor car 1 to the counterweight roller 7 through the steel wire traction rope 9 by the cooperation of the synchronous rod 13 and the synchronous hole 12, thereby reducing the advancing force of the subway motor car 1.

[0024] As shown in the embodiment, Figures 1 to 4As shown, the top end of the synchronization hole 12 is provided with a chamfer 14, and the bottom end of the synchronization rod 13 is provided with a rounded corner 15. The rounded corner 15 and the chamfer 14 are in contact with each other. An installation ring 16 is slidably installed on the outer side of the top end of the fixed shaft 6. A compression spring 17 is sleeved on the outer side of the top end of the fixed shaft 6. One end of the compression spring 17 is fixedly connected to the installation ring 16, and the other end of the compression spring 17 is fixedly connected to the inner wall of the top end of the fixed frame 5.

[0025] When the self-locking hook 11 is initially connected to the fixed rod 3, the counterweight roller 7 is stationary. The moving metro train 1 will drive the wire rope traction rope 9 to pull out the wire rope wheel 8, which will drive the wire rope wheel 8 to rotate. The rounded corner 15 at the lower end of the synchronizing rod 13 will press the chamfer 14 at the top of the synchronizing hole 12. The pressing of the rounded corner 15 and the chamfer 14 will apply a rotational force to the counterweight roller 7. The forward force of the metro train 1 will be transmitted to the counterweight roller 7 through the wire rope traction rope 9. As the wire rope wheel 8 rotates and the compression spring 17 presses down on the mounting ring 16, the synchronizing rod 13 will intermittently insert into and slide out of the synchronizing hole 12 to initially drive the counterweight roller 7 to rotate and control the counterweight roller 7 to rotate faster and faster, thereby initially reducing the forward force of the metro train 1.

[0026] like Figures 1 to 4 As shown, a support ring 18 for supporting the bottom end of the wire rope wheel 8 is fixedly installed in the middle of the fixed shaft 6.

[0027] The support ring 18 can limit the lowest position of the wire rope wheel 8 to prevent the synchronizing rod 13 from being excessively inserted into the synchronizing hole 12 and affecting the operation of initially reducing the forward force of the metro train 1.

[0028] like Figures 1 to 4 As shown, an electric push rod 19 is fixedly installed inside the mounting groove 4 corresponding to the tunnel 2. A magnet 20 is fixedly installed at the moving end of the electric push rod 19, and the magnet 20 is magnetically attracted to one side of the fixing block 10.

[0029] The moving end of the electric push rod 19 drives the fixed block 10 to move. When the self-locking hook 11 on the fixed block 10 is locked to the fixed rod 3 on the subway car 1 in motion, the magnetic attraction between the magnet 20 and the fixed block 10 will be canceled as the subway car 1 moves, thus ensuring that the self-locking hook 11 and the subway car 1 move simultaneously.

[0030] like Figures 1 to 4 As shown, positioning rods 21 are symmetrically fixedly installed inside the corresponding mounting slot 4 in the tunnel 2, and steel wire traction rope 9 is set between the two positioning rods 21.

[0031] The two positioning rods 21 can limit the pull-out position of the steel wire traction rope 9.

[0032] like Figures 1 to 4As shown, the end of the steel wire traction rope 9 is not fixedly connected with the middle part of the steel wire rope wheel 8.

[0033] The fixed frame 5 can be prevented from being pulled to move along with the movement of the metro vehicle 1 after the metro vehicle 1 is decelerated.

[0034] The utility model provides a derailment collision energy absorption protection device, specific working principle is as follows:

[0035] When the derailment detection sensor detects that the metro vehicle 1 derails, the derailment detection sensor transmits a signal to the metro vehicle 1 system, and the metro vehicle 1 system immediately sends a signal to the metro vehicle 1 control system, triggering the emergency brake of the metro vehicle 1 for deceleration. At the same time, the metro vehicle 1 system controls the moving end of the electric push rod 19 to move through wireless signal transmission, moving the fixed block 10 of the moving end of the electric push rod 19, which in turn moves the self-locking hook 11 on the fixed block 10 to be fixed with the fixed rod 3 on the metro vehicle 1 in running state. The running metro vehicle 1 pulls out the steel wire traction rope 9. When the self-locking hook 11 is initially connected with the fixed rod 3, the counterweight roller 7 is in a stationary state. The running metro vehicle 1 pulls out the steel wire traction rope 9, which in turn drives the steel wire traction rope 9 to rotate, and the round corner 15 at the low end of the synchronous rod 13 extrudes the chamfer 14 at the top end of the synchronous hole 12. The extrusion of the round corner 15 and the chamfer 14 applies a rotating force to the counterweight roller 7. The forward force of the metro vehicle 1 is transmitted to the counterweight roller 7 through the steel wire traction rope 9. With the rotation of the steel wire traction rope 8 and the downward extrusion of the mounting ring 16 by the extrusion spring 17, the synchronous rod 13 is intermittently inserted into and pulled out of the synchronous hole 12, which is used to preliminarily drive the counterweight roller 7 to rotate and control the counterweight roller 7 to rotate faster and faster, thereby preliminarily reducing the forward force of the metro vehicle 1. With the rotation of the counterweight roller 7, the synchronous rod 13 can be stably inserted into the inside of the synchronous hole 12, which is used to control the synchronous rotation of the steel wire traction rope 8 and the counterweight roller 7. The inertia rotation of the counterweight roller 7 further reduces the forward force of the metro vehicle 1, absorbs the kinetic energy of the metro vehicle 1, reduces the speed of the metro vehicle 1, controls the contact between the metro vehicle 1 and the rail, and reduces the possibility of derailment of the metro vehicle 1.

[0036] Although embodiments of the utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A derailment collision energy absorption protection device, comprising a subway motor car (1) and a tunnel (2), a derailment detection sensor for detecting whether the subway motor car derails is installed on a bogie of the subway motor car (1), characterized in that: The subway motor car (1) is provided with a fixed rod (3) on one side of each car body, a mounting groove (4) is formed in the tunnel (2), a fixed frame (5) is fixedly installed in the tunnel (2) corresponding to the mounting groove (4), a fixed shaft (6) is fixedly installed in the middle of the fixed frame (5), a counterweight roller (7) is rotatably installed on the bottom outer side of the fixed shaft (6), a steel wire rope wheel (8) is rotatably installed on the top outer side of the fixed shaft (6), the steel wire rope wheel (8) can rotate synchronously and intermittently with the counterweight roller (7), a steel wire traction rope (9) is wound in the steel wire rope wheel (8), a fixed block (10) is movably installed in the tunnel (2) corresponding to the mounting groove (4), a self-locking hook (11) is fixedly installed on one side of the fixed block (10), one end of the steel wire traction rope (9) is fixedly connected with the fixed block (10), and the self-locking hook (11) is fixed with the fixed rod (3).

2. A derailment crash energy absorption guard according to claim 1, characterised in that: The top end of the counterweight roller (7) is provided with a synchronous hole (12) with the central axis of the counterweight roller (7) as the shaft, the bottom end of the steel wire rope wheel (8) is fixedly installed with a synchronous rod (13) with the central axis of the steel wire rope wheel (8) as the shaft, and the synchronous rod (13) and the synchronous hole (12) are slidably connected.

3. A derailment crash energy absorption guard according to claim 2, characterised in that: The top end of the synchronous hole (12) is provided with a chamfer (14), the bottom end of the synchronous rod (13) is provided with a round corner (15), the round corner (15) is in extrusion contact with the chamfer (14), the top outer side of the fixed shaft (6) is slidably installed with a mounting ring (16), the top outer side of the fixed shaft (6) is sleeved with an extrusion spring (17), one end of the extrusion spring (17) is fixedly connected with the mounting ring (16), and the other end of the extrusion spring (17) is fixedly connected with the top inner wall of the fixed frame (5).

4. A derailment crash energy absorption guard according to claim 3, characterised in that: The middle of the fixed shaft (6) is fixedly installed with a supporting ring (18) for supporting the bottom end of the steel wire rope wheel (8).

5. A derailment crash energy absorption guard according to claim 1, characterised in that: The tunnel (2) is fixedly installed with an electric push rod (19) in the inside of the mounting groove (4), a magnet (20) is fixedly installed on the moving end of the electric push rod (19), and the magnet (20) is magnetically fixed on one side of the fixed block (10).

6. A derailment crash energy absorption guard according to claim 5, characterised in that: The tunnel (2) is symmetrically fixedly installed with a positioning rod (21) in the inside of the mounting groove (4), and the steel wire traction rope (9) is arranged between the two positioning rods (21).

7. A derailment crash energy absorption guard according to claim 1, characterised in that: The end of the steel wire traction rope (9) is not fixedly connected with the middle of the steel wire rope wheel (8).

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