CN107176180B

CN107176180B - Anti-deviation energy-absorbing locking device

Info

Publication number: CN107176180B
Application number: CN201710532699.XA
Authority: CN
Inventors: 肖守讷; 杨皓杰; 朱涛; 冯悦; 李倩
Original assignee: Southwest Jiaotong University
Current assignee: Southwest Jiaotong University
Priority date: 2017-07-03
Filing date: 2017-07-03
Publication date: 2023-03-31
Anticipated expiration: 2037-07-03
Also published as: CN107176180A

Abstract

The invention provides an anti-deviation energy-absorbing locking device, and relates to the technical field of passive safety of railway vehicles. The top end of a rotator of the male locking structure is fixedly connected with the outer side of the bottom of the square box, the energy absorption pipe is fixed on the inner side of the bottom of the square box, and one end of the guide rod is fixed on the inner side of the bottom of the square box; the square plate is uniformly provided with four through holes with the same distance with the guide rods, and is connected with the cover plate through the snapping bolts, and the cover plate is fixedly connected with the opening end of the square box; the four protruding ends of the combined type groined sliding plate are arranged in the sliding grooves on the side surfaces of the square box and are contacted with the inner wall of the square box through a second return spring; one end of the connecting rod is fixed with the square plate, the other end of the connecting rod is fixedly connected with the plane end of the conical head, and the conical head is provided with a square groove and an annular groove; the top end of a rotator of the female locking structure is fixedly connected with the outer side of the bottom of the variable-diameter cylinder, the trapezoidal plate is fixed with the inner wall of the variable-diameter cylinder, and the arc-shaped sliding plate is arranged in the sliding groove of the variable-diameter cylinder and is connected with the inner wall of the variable-diameter cylinder through a first return spring.

Description

Anti-deviation energy-absorbing locking device

Technical Field

The invention relates to the technical field of passive safety of railway vehicles.

Background

In order to absorb impact energy of collision, thereby protecting the life safety of passengers and the integrity of a vehicle main body structure to the maximum extent, energy absorbing devices with different capacities are often arranged at the end part of a vehicle body according to the requirements of train collision energy management to absorb kinetic energy in a controllable manner, and the energy absorbing devices become important components in the technical field of train passive safety.

The conventional energy absorption devices are basically applied to two sides of one end of a train head car and are combined with an anti-creeper to form the anti-creep energy absorption device, so that the anti-creep energy absorption device can absorb collision energy and can limit the climbing behavior of an active car and a passive head car. However, when a train has a collision accident in a curve section, the safety of train collision cannot be guaranteed only by limiting the climbing behavior between vehicles, because the transverse buckling behavior often occurs between vehicles when the collision occurs on a curve track, a 'Z' -shaped large-displacement transverse buckling can seriously occur, and finally the train is separated from the track constraint to cause derailment, which endangers the life safety of passengers and causes serious economic loss.

Utility model patent ZL201520717593.3 provides a rail vehicle is with anti-creep and anti-deviation energy-absorbing device, can exert better effect on linear rail, but lateral offset is great between the vehicle on the curve track, breaks away from easily after the anticreeper meshing, and when the contact anti-creep tooth must misplace just can the meshing, makes the energy-absorbing pipe just take place bending deformation when the contact easily, reduces the energy-absorbing effect.

Therefore, the two-position end of the head train and the end part of the middle train are required to be provided with the anti-deviation energy absorption devices, so that the transverse displacement between the trains is restrained, meanwhile, a part of collision energy can be stably absorbed, the derailment accident of the train is prevented, and the structural integrity of the end part of the train is protected.

Disclosure of Invention

The invention aims to provide an anti-deviation energy-absorbing locking device which can effectively solve the problem of transverse flexure between vehicles.

The purpose of the invention is realized by the following technical scheme: a deflection-preventing energy-absorbing locking device comprises a mounting plate, an energy-absorbing pipe and a female locking structure and a male locking structure which are fixed with two ends of a vehicle, wherein bolt holes are formed in four corners of the mounting plate, mounting seats of the female locking structure and the male locking structure are of the same structure, the mounting plate is provided with a stop block, and a rotator is fixed with the mounting plate through vertical plates at two ends of a rotating shaft; the top end of a rotator of the male locking structure is fixedly connected with the outer side of the bottom of the square box, the energy absorption pipe is fixed on the inner side of the bottom of the square box, the energy absorption pipe is internally provided with a guide rod, one end of the guide rod is fixed on the inner side of the bottom of the square box, and the other end of the guide rod is fixed with the cover plate through a bolt; the square plate is uniformly provided with four through holes with the same distance with the guide rods, and is connected with the cover plate through the snapping bolts, and the cover plate is fixedly connected with the opening end of the square box; the four protruding ends of the combined type groined sliding plate are arranged in the sliding chute on the side surface of the square box and are in contact with the inner wall of the square box through a second return spring; one end of the connecting rod is fixed with the square plate, the other end of the connecting rod is fixedly connected with the plane end of the conical head, and the conical head is provided with a square groove and an annular groove; the top end of a rotator of the female locking structure is fixedly connected with the outer side of the bottom of the variable-diameter cylinder, the trapezoidal plate is fixed with the inner wall of the variable-diameter cylinder, and the arc-shaped sliding plate is arranged in the sliding groove of the variable-diameter cylinder and is connected with the inner wall of the variable-diameter cylinder through a first return spring.

The connecting rod is for becoming the hollow pipe of external diameter, is equipped with the through-hole that the diameter slightly is greater than the connecting rod on the apron.

One end of the guide rod is positioned in the four through holes of the square plate.

Furthermore, after the anti-deviation energy-absorbing locking device is implemented, the trapezoidal plate is clamped in the square groove of the conical head, the arc-shaped sliding plate is clamped in the annular groove of the conical head, the anti-deviation energy-absorbing locking device is locked and cannot be separated, and transverse displacement between vehicles is restrained.

Furthermore, when the deviation-preventing energy-absorbing locking device is not implemented, the breaking bolt can prevent the square plate from crushing the energy-absorbing tube, and when the pulling force reaches a certain value after the device is implemented, the square plate is failed, and the square plate crushes the energy-absorbing tube along the guide rod.

Furthermore, the connecting rod is a hollow circular tube with a variable outer diameter, a connecting rod hole with a diameter slightly larger than the minimum outer diameter of the connecting rod is arranged on the cover plate, the sliding plate is continuously extruded by the connecting rod to slide up and down along the sliding groove on the side face of the square box after the anti-deviation energy-absorbing locking device is implemented, the sliding plate is always clamped on the connecting rod under the action of the second return spring, the sliding plate can limit the return motion of the connecting rod, and the anti-deviation energy-absorbing locking device is guaranteed to be longitudinally locked.

Furthermore, the guide rods are symmetrically distributed, so that the square plate can be restrained from stably and orderly crushing energy-absorbing pipes, and the square plate has the capabilities of deviation prevention and bending resistance.

Further, the stopper can limit the rotation angle of the rotator.

The invention has the beneficial effects that: the invention can prevent the transverse buckling behavior between the vehicles, avoid the derailment accident of the train caused by the wheel set breaking away from the track constraint, and has more obvious effect on the curved track; the collision energy can be stably and controllably absorbed, the structural integrity of the end part of the train is ensured, and the passive safety of the train is enhanced; the device is locked after being implemented, so that the device is not separated from the vehicle, the rotation angle between the vehicles is limited, and the relative motion of the vehicles in a certain range is restrained.

Drawings

FIG. 1 is a schematic view of a male locking structure of the present invention

FIG. 2 is a schematic view of a female locking structure of the present invention

FIG. 3 is a schematic view of the locking mode of the male locking structure of the present invention

FIG. 4 is a front view of the present invention showing the arc-shaped slide board

FIG. 5 is a left side view of the cone head of the present invention

FIG. 6 is a cross-sectional view of a variable diameter cylinder and trapezoidal plate of the present invention

FIG. 7 is a perspective view of the energy absorbing tube and guide bar inside the square box of the present invention

FIG. 8 is a cross-sectional view of a tie rod assembly of the present invention

FIG. 9 is a schematic diagram showing the relationship between the cover plate, the square plate and the broken bolt

FIG. 10 is a front view of the combination skateboard of the present invention

FIG. 11 is an isometric view of a mount of the present invention

FIG. 12 is a cross-sectional view of a mount of the present invention

In the figure: 1-mounting a plate; 2-a stop block; 3-a rotator; 4-a square box; 5, sliding plates; 6-cover plate; 7-breaking the bolt; 8-a guide rod; 9-a connecting rod; 10-an annular groove; 11-a square groove; 12-a conical head; 13-standing the plate; 14-a second return spring; 15-square board; 16-a variable diameter cylinder; 17-a first return spring; 18-arc-shaped sliding plates; 19-trapezoidal plate; 20-an energy absorbing tube; 21-axis of rotation.

Detailed Description

The invention is described in further detail below with reference to the drawings and the detailed description. An anti-deviation energy-absorbing locking device comprises a mounting plate 1 fixed with two ends of a vehicle, an energy-absorbing pipe, a female locking structure and a male locking structure, bolt holes are formed in four corners of the mounting plate 1, mounting seats of the female locking structure and the male locking structure are of the same structure, a stop block 2 is arranged on the mounting plate 1, and a rotator 3 is fixed with the mounting plate 1 through vertical plates 13 at two ends of a rotating shaft 21; the top end of a rotator 3 of a male locking structure is fixedly connected with the outer side of the bottom of a square box 4, an energy absorption tube 20 is fixed on the inner side of the bottom of the square box 4, a guide rod 8 is arranged in the energy absorption tube 20, one end of the guide rod 8 is fixed on the inner side of the bottom of the square box 4, and the other end of the guide rod 8 is fixed with a cover plate 6 through a bolt; the square plate 15 is uniformly provided with four through holes with equal distance with the guide rods 8, and is connected with the cover plate 6 through the snapping bolts 7, and the cover plate 6 is fixedly connected with the opening end of the square box 4; the four protruding ends of the combined type groined sliding plate 5 are arranged in the sliding grooves on the side surfaces of the square box 4 and are contacted with the inner wall of the square box 4 through the second return spring 14; one end of the connecting rod 9 is fixed with the square plate 15, the other end of the connecting rod is fixedly connected with the plane end of the conical head 12, and the conical head 12 is provided with a square groove 11 and an annular groove 10; the top end of the rotator 3 of the female locking structure is fixedly connected with the outer side of the bottom of the variable-diameter cylinder 16, the trapezoidal plate 19 is fixed with the inner wall of the variable-diameter cylinder 16, and the arc-shaped sliding plate 18 is arranged in the sliding groove of the variable-diameter cylinder 16 and is connected with the inner wall of the variable-diameter cylinder 16 through the first return spring 17.

The connecting rod 9 is a hollow round pipe with a variable outer diameter, and the cover plate 6 is provided with a through hole with a diameter slightly larger than that of the connecting rod 9.

One end of the guide rod 8 is positioned in the four through holes of the square plate 15.

The mounting plate 1 is fixedly connected to the end parts of adjacent vehicles through bolts respectively, after the anti-deviation energy-absorbing locking device is implemented, the trapezoidal plate 19 is clamped in the square groove 11 of the conical head 12, the arc-shaped sliding plate 18 is clamped in the annular groove 10 of the conical head 12, the sliding plate 5 can limit the return motion of the connecting rod 9, the anti-deviation energy-absorbing locking device is locked and cannot be separated from the locking device, and the transverse displacement between the vehicles is restrained. When the tensile force reaches a certain value, the breaking bolt 7 fails, and the square plate 15 crushes the energy absorption tube 20 along the guide rod 8 to absorb the collision energy.

The invention can prevent the transverse buckling action between vehicles, avoid the derailment accident caused by the train being out of the track constraint and has more obvious effect on the curved track; the square plate 15 is arranged in the middle of the crushing energy-absorbing pipe 20 along the 4 symmetrically-arranged guide rods 8, so that collision energy can be stably and controllably absorbed, the structural integrity of the end part of a vehicle is ensured, the passive safety of a train is enhanced, and the life safety of passengers is protected; the device is locked after being implemented, so that the device is not separated from the vehicle, the rotation angle between the vehicles is limited, and the relative motion of the vehicles in a certain range is restrained.

Claims

1. An anti-deviation energy-absorbing locking device comprises a mounting plate (1) fixed with two ends of a vehicle, an energy-absorbing pipe, a female locking structure and a male locking structure, wherein bolt holes are formed in four corners of the mounting plate (1), the anti-deviation energy-absorbing locking device is characterized in that mounting seats of the female locking structure and the male locking structure are of the same structure, a stop block (2) is arranged on the mounting plate (1), and a rotator (3) is fixed with the mounting plate (1) through vertical plates (13) at two ends of a rotating shaft (21); the top end of a rotator (3) of a male locking structure is fixedly connected with the outer side of the bottom of a square box (4), an energy absorption pipe (20) is fixed on the inner side of the bottom of the square box (4), a guide rod (8) is arranged in the energy absorption pipe (20), one end of the guide rod (8) is fixed on the inner side of the bottom of the square box (4), and the other end of the guide rod is fixed with a cover plate (6) through a bolt; four through holes with the same distance with the guide rods (8) are uniformly distributed on the square plate (15), the square plate is connected with a cover plate (6) through a snapping bolt (7), and the cover plate (6) is fixedly connected with the opening end of the square box (4); four protruding ends of the combined type groined sliding plate (5) are arranged in sliding grooves on the side surfaces of the square box (4) and are in contact with the inner wall of the square box (4) through a second return spring (14); one end of the connecting rod (9) is fixed with the square plate (15), the other end of the connecting rod is fixedly connected with the plane end of the conical head (12), and the conical head (12) is provided with a square groove (11) and an annular groove (10); the top end of a rotator (3) of a female locking structure is fixedly connected with the outer side of the bottom of a variable-diameter cylinder (16), a trapezoidal plate (19) is fixed with the inner wall of the variable-diameter cylinder (16), an arc-shaped sliding plate (18) is arranged in a sliding groove of the variable-diameter cylinder (16) and is connected with the inner wall of the variable-diameter cylinder (16) through a first return spring (17).

2. A device according to claim 1, characterized in that the tie-rods (9) are hollow round tubes with a variable outer diameter, and the cover-plate (6) is provided with through-holes with a diameter slightly larger than the tie-rods (9).

3. Deviation-preventing, energy-absorbing locking device according to claim 1, characterised in that one end of the guide bar (8) is located in four through holes of a square plate (15).