WO2019096109A1

WO2019096109A1 - Energy absorbing device for subway vehicle

Info

Publication number: WO2019096109A1
Application number: PCT/CN2018/115153
Authority: WO
Inventors: 骆起; 刘洪涛; 王科飞; 方子文; 王剑然; 洪海峰; 于青松
Original assignee: 中车长春轨道客车股份有限公司
Priority date: 2017-11-14
Filing date: 2018-11-13
Publication date: 2019-05-23
Also published as: CN107914728A; CN107914728B; US20200122752A1

Abstract

An energy absorbing device for a subway vehicle, comprising a movable anti-creeper (1), a fixed anti-creeper (2), an energy absorbing honeycomb (3), at least one crushing pipe (4), two sliding groove components (5) and two guide slide rails (6). The energy absorbing honeycomb (3) serves as a first-stage energy absorbing element, directly bears a collision impact force transmitted by the movable anti-creeper (1), and converts the collision kinetic energy into deformation internal energy and heat by means of the compressive deformation of the energy absorbing honeycomb (3) itself, so as to realize energy absorbing and buffering; and the at least one crushing pipe (4) serves as a second-stage energy absorbing and buffering device, and further absorbs the collision energy, thereby realizing further buffering and protection for the chassis of the vehicle body, and ensuring that when collision occurs, the collision energy can be sequentially absorbed in the predetermined direction and sequence according to multiple levels and sequences, ensuring the reliability of the action of the energy absorbing device.

Description

Energy absorbing device for subway vehicles

The present application claims priority to Chinese Patent Application No. PCT Application No. No. No. No. No. No. No. No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No

Technical field

The present invention relates to the field of anti-collision and energy absorbing devices for rail vehicle head vehicles, and in particular to a front end energy absorbing device for a metro vehicle.

Background technique

The front end of the head vehicle of a rail vehicle is usually provided with an anti-collision energy absorbing device. The existing subway vehicles with energy absorbing devices usually adopt a structural form in which the vehicle body underframe structure and the energy absorbing device are integrated. The above structural form integrates the energy absorbing device and the vehicle body underframe. When the front end of the train collides, the energy absorbing device of the vehicle body bears the impact impulse together with the vehicle body chassis, and absorbs the absorption into the deformation internal energy. At the same time, the structure of the car body underframe and the energy absorbing device are irreversibly deformed and destroyed. Even in low-speed collisions, the car body undercarriage is no longer replaceable and maintainable. That is to say, a minor collision will result in overhaul or scrapping of the vehicle. Therefore, the structural form of the old car body underframe structure and the energy absorbing device integrated design has been unable to meet the new requirements of the vehicle procurement user for vehicle safety and maintainability.

In order to make the subway vehicles after the collision, especially after the low-speed collision, it is not directly scrapped or must be overhauled. It is urgent to develop a device with multi-stage energy absorption, which is under the premise that the vehicle body chassis is not subjected to impact deformation. The first stage energy absorbing device can be replaced or repaired to meet the requirements of the user.

Summary of the invention

In order to solve the technical problem that the energy absorbing device of the existing subway vehicle usually adopts the integrated design of the vehicle body underframe structure and the energy absorbing device, the subway vehicle cannot be replaced separately after the collision of the subway vehicle, the present invention provides a subway Energy absorbing device for the vehicle.

The technical solution adopted by the present invention to solve the technical problem is as follows:

The device comprises: a movable anti-climbing device, a fixed anti-climbing device, an energy-absorbing honeycomb, at least one crushing tube, two chute assemblies, and two guiding slide rails, wherein the middle portion of the fixed anti-climbing device is provided a front-opening receiving cavity, the energy-absorbing honeycomb is embedded in the receiving cavity, and a rear end of the movable anti-climbing device is connected with a front end of the fixed anti-climbing device through two movable anti-climbing long bolts, and The rear end surface of the movable anti-climbing device causes the energy absorbing honeycomb to be caught in the receiving cavity of the fixed anti-climbing device; the at least one crushing tube is vertically fixed to the rear end of the fixed anti-climbing device; The two chute assemblies are symmetrically fixed to the outer side walls of the left and right ends of the fixed anti-climbing device; the two guiding slide rails are arranged in parallel at the left and right ends of the fixed anti-climbing device, and Each of the guide rails is slidably coupled to a corresponding chute assembly.

Preferably, the movable anti-climbing device comprises three flat plates, two side vertical plates, and one neutral plate, wherein the three flat plates are arranged parallel to each other to form a flat plate group, and the left and right ends of the flat plate group are respectively Securely connected to a corresponding side riser; the middle of the three flat plates are provided with rectangular through grooves, and the neutral plates sequentially pass through the respective rectangular through grooves of the three flat plates and are integrated with the three flat plates Solid.

Preferably, the front ends of the three flat plates are provided with at least one row of through holes.

Preferably, the fixed anti-climbing device comprises: a left anti-collision box, a right anti-collision box, located between the left anti-collision box and the right anti-collision box and configured to fix the left anti-collision box a rear cavity of the receiving cavity at the rear of the opposite side walls of the body and the right anti-collision box, a receiving upper cover, a receiving lower cover, and two chute fixing seats; The inside of the left anti-collision box and the right anti-collision box are respectively provided with a plurality of reinforcing ribs disposed along the longitudinal direction of the vehicle body; the left anti-collision box and the right anti-collision box are symmetrically disposed; The left and right ends of the accommodating chamber lower cover are respectively welded to the lower edges of the left side fixed anti-climbing anti-collision box and the opposite side wall of the right-side fixed anti-climbing anti-collision box, the accommodating a rear end of the lower cover plate supports a lower end of the rear end beam of the receiving cavity, and is fixedly connected to a lower end of the rear end beam of the receiving cavity; the left and right ends of the upper cover plate of the receiving cavity respectively and the left end The anti-collision box is welded to the upper edge of the opposite side wall of the right anti-collision box, and the rear end of the receiving chamber upper cover covers the upper end of the rear end beam of the receiving cavity, and The upper end of the rear end beam of the receiving cavity is fixedly connected; the front end of the at least one crushing pipe is vertically fixed to the rear end of the fixed anti-climbing device.

Preferably, the upper surfaces of the left collision preventing box and the right collision preventing box are respectively provided with a mounting hole for mounting a front end frame of the head vehicle of the subway vehicle, and the energy absorbing unit is located at the In front of the front end frame, the at least one crushing tube is located behind the front end frame, and the two guiding rails are fixed to the body frame of the head vehicle of the subway vehicle.

Preferably, a part of the movable anti-climbing device is inserted into the accommodating cavity and a front end of the movable anti-climbing device protrudes from the accommodating cavity, so that the energy absorbing honeycomb is passed through a rear end surface of the movable anti-climbing device Completely enclosed within the receiving cavity of the fixed anti-climbing device.

Preferably, the movable anti-climbing device, the energy-absorbing honeycomb, the fixed anti-climbing device, and the impact strength of the at least one crushing pipe are sequentially weakened in the following order: the fixed anti-climbing device, the A movable anti-climbing device, the at least one crush tube, the energy absorbing honeycomb.

Preferably, each of the two chute assemblies comprises: an upper mold half, a lower mold half, and a plurality of chute connecting bolts, wherein the upper mold half includes an upper mold half chute portion and an upper mold half butt portion The upper mold half abutting portion is provided with a plurality of thread blind holes, the upper mold half chute portion is an inverted right angle step type structure, and the upper mold half is opposite to the left collision preventing box or the right The lateral outer side wall of the anti-collision box is fixedly connected; the upper surface of the upper mold half is fixedly connected with the chute fixing seat disposed on the lateral outer side wall of the left anti-collision box or the right anti-collision box; The lower mold half includes a lower mold half groove portion and a lower mold half abutting portion, the lower mold half abutting portion is provided with a plurality of threaded through holes, and the lower mold half chute portion is a right angle stepped structure; The upper mold abutting portion and the lower mold half abutting portion are in close contact with each other, and the plurality of sliding groove connecting bolts respectively pass through the plurality of threaded through holes on the lower mold half abutting portion and the upper mold half abutting portion a plurality of threaded blind holes fixedly disposed; an inverted right angle step structure of the upper mold half chute portion and a right angle stepped knot of the lower mold half chute portion Combining to form a complete chute; the boss rails of the two guiding rails are respectively embedded in the horizontal direction from the two chute assemblies, so that the fixed anti-climbing device can be guided along the two guides Slide rails slide.

Preferably, the thickness of the boss of each of the two guiding slides is gradually reduced from front to back to form a wedge-shaped track, and the chute is slided from the front to the rear into the guiding rail. The gap between the assembly and the guide rail gradually increases.

Preferably, the triggering force of the at least one crush tube is at least 1.3 times the triggering force of the energy absorbing unit, and the maximum absorbed energy of the at least one crush tube is at least the maximum absorbed energy of the energy absorbing unit. 5 times.

The invention also discloses a method for installing an energy absorbing device of the subway vehicle, wherein:

Step 1, the rear ends of the two guiding rails and the rear end of the at least one crushing pipe are respectively fixed to the chassis of the vehicle body,

Step 2, inserting the energy absorbing honeycomb into the accommodating cavity of the anti-climbing device with the internal honeycomb cavity facing the longitudinal direction of the vehicle body.

Step 3, inserting a rear end of the movable anti-climbing device into a receiving cavity of the fixed anti-climbing device, and a front end of the movable anti-climbing device protrudes from the receiving cavity

In step 4, the movable anti-climbing device is movably connected to the fixed anti-climbing device by two movable anti-climbing device long bolts.

The beneficial effects of the present invention are: when the energy absorbing device of the subway vehicle is subjected to a relatively small foreign object impact, the impacting foreign matter is first brought into contact with the movable anti-climbing device, and since the active anti-climbing device has a high structural strength, it is not It will be deformed by the impact, so it cannot absorb the impact energy in a large amount, and it only transmits the collision energy to the energy absorbing cell behind it. In other words, the energy absorbing cell is the first stage energy absorbing buffer device in the overall structure of the present invention, which directly bears the impact impact force transmitted by the movable anti-climbing device, and is subjected to compression deformation and collision by the energy absorbing cell itself. Kinetic energy is converted into deformation internal energy and heat, thereby achieving energy absorption buffering. The fixed anti-climbing device is the main bearing structure in the whole energy absorbing device, and accommodates the energy absorbing honeycomb and provides directional support thereto. The front end of the accommodating cavity does not have an end cover, which facilitates the replacement and maintenance of the energy absorbing honeycomb. Two movable anti-climbing long bolts are arranged longitudinally on the fixed anti-climbing device to ensure that the movable anti-climbing device can only move backwards and cannot move forward. When disassembling the movable anti-climbing device, it is necessary to disassemble two Long anti-climbing bolts. The fixed anti-climbing device also transmits a portion of the collision kinetic energy back to at least one crush tube disposed at the rear end thereof. When the impact impact force is very strong and exceeds the action threshold of the crush tube, the crush tube will act as the second-stage energy absorption buffer device, and start the synchronous crushing and damping action to further absorb the collision energy, thereby realizing the vehicle body chassis. Further cushioning protection and ensuring that the impact energy can be sequentially operated in a multi-stage and sequential manner according to a predetermined direction and order in the event of a collision, thereby ensuring the reliability of the action of the energy absorbing device. The two guide rails ensure that the fixed anti-climbing device is synchronized with the two crushing tubes and backwards in the longitudinal direction of the vehicle body, thereby avoiding the bending and failure of one of the crushing tubes due to the unsynchronized force.

The device also greatly improves the accuracy of energy absorption of the vehicle by adopting the design of the energy absorbing element and the split structure of the vehicle body structure, and can greatly reduce the maintenance cost of the energy absorbing device for the vehicle user.

In addition, the energy absorbing device of the subway vehicle of the present invention has the advantages of simple and practical structure, convenient operation, low cost, and convenient popularization.

DRAWINGS

1 is an exploded view showing the structure of an energy absorbing device of a subway vehicle according to the present invention;

2 is a schematic perspective view showing the energy absorbing device of the subway vehicle of the present invention;

Figure 3 is a schematic exploded view of the energy absorbing device of Figure 2;

Figure 4 is an exploded view of the energy absorbing device of the subway vehicle of the present invention in another stereoscopic view;

Figure 5 is a perspective view showing the structure of the movable anti-climbing device of the present invention;

Figure 6 is a schematic view of a honeycomb used in the present invention;

Figure 7 is a schematic exploded view of the three-dimensional structure of the fixed anti-climbing device of the present invention;

Figure 8 is a schematic exploded view of the three-dimensional structure of the chute assembly of the present invention;

Figure 9 is a schematic view of the operation of the energy absorbing device of the present invention after it has been impacted.

Detailed ways

The embodiments of the present invention will be described clearly and completely in the light of the accompanying drawings. It is to be understood that the described embodiments are only a part of the embodiments of the invention, rather than all embodiments. All other embodiments obtained by those skilled in the art based on the described embodiments, without departing from the scope of the invention, should fall within the scope of the invention.

The directional terms of up, down, left, right, front, and back are all based on the direction in which the vehicle travels and are based on the positional relationship shown in the drawings. Depending on the drawing, the corresponding positional relationship may also change accordingly, and therefore, it cannot be understood as an absolute limitation of the scope of protection.

Please refer to Figure 1-2. According to the present invention, an energy absorbing device for a subway vehicle is provided. Hereinafter, an example in which the energy absorbing device is attached to the front end of the head vehicle will be described. The energy absorbing device comprises a movable anti-climbing device 1, a fixed anti-climbing device 2, an energy absorbing honeycomb 3, at least one crushing tube 4, two chute assemblies 5 and two guiding slides 6. The middle section of the fixed anti-climbing device 2 is provided with a receiving cavity having an open end, and the energy absorbing honeycomb 3 is embedded in the receiving cavity of the fixed anti-climbing device 2. The rear end of the movable anti-climbing device 1 and the front end of the fixed anti-climbing device 2 are connected by two movable anti-climbing long bolts 7. The rear end face of the movable anti-climbing device 1 causes the energy absorbing honeycomb 3 to be caught in the accommodating cavity of the fixed anti-climbing device 2. At least one crush tube 4 is vertically fixed to the rear end of the fixed anti-climbing device 2. The two chute assemblies 5 are symmetrically fixed to the outer sidewalls of the left and right ends of the fixed anti-climbing device 2. The two guide rails 6 are arranged in parallel on the left and right ends of the fixed anti-climbing device 2, and each of the guide rails 6 is slidably connected to a corresponding chute assembly 5.

Preferably, a part of the movable anti-climbing device 1 can be inserted into the accommodating cavity, and a front end of the movable anti-climbing device 1 protrudes from the accommodating cavity, so that the energy absorbing honeycomb 3 can pass the activity The rear end face of the anti-climbing device 1 is completely enclosed in the receiving cavity of the fixed anti-climbing device 2.

Preferably, the position of the energy absorbing device relative to other components of the vehicle body may be: the two guiding rails 6 are parallel and welded to the vehicle body chassis 8 , and the front end frame 9 is perpendicular to the upper surface of the fixed anti-climbing device 2 And the welding connection, the energy absorbing honeycomb 3 is located in front of the front end frame 9, and the at least one crushing tube 4 is located behind the front end frame 9.

Fig. 2 is a view showing the structural form of the energy absorbing device of the subway vehicle of the present invention when it is assembled and the relative positional relationship between the components. 3 is a schematic view showing another exploded structure of an energy absorbing device for inventing a subway vehicle. 4 is an exploded view of the energy absorbing device of the subway vehicle of the present invention in another perspective view. All the components of the energy absorbing device of the subway vehicle of the present invention are shown.

Fig. 5 is a perspective view showing the structure of the movable anti-climbing device of the present invention. The movable anti-climbing device 1 includes three flat plates 1-1, two side vertical plates 1-2, and one neutral plate 1-3. The three side flat plates 1-1 are disposed in parallel with each other. The left and right ends of each side panel 1-1 are fixedly connected to a corresponding side vertical panel 1-2, and the five together constitute a first energy absorbing box. The middle sections of the three flat plates 1-1 are each provided with a rectangular through groove 1-1-1, and the neutral plates 1-3 sequentially pass through the respective rectangular through grooves 1-1-1 of the three flat plates 1-1. It is fixed to the three flat plates 1-1.

Preferably, the front ends of the three flat plates 1-1 of the movable anti-climbing device 1 are arranged in at least one row through the upper and lower through holes 1-4. After the head vehicle of the subway vehicle is hit, if only the movable anti-climbing device 1 is damaged and the fixed anti-climbing device 2 is not damaged, the activity can be carried out by pulling a rope that penetrates the through holes 1-4. The anti-climbing device 1 is removed to replace the component.

Figure 6 is a schematic illustration of a honeycomb used in the present invention. The preferred material for the honeycomb is aluminum. The energy absorbing honeycomb 3 can be completely enclosed by the rear end surface of the fixed anti-climbing device 2 in the accommodating chamber of the fixed anti-climbing device 2, and the front end of the fixed anti-climbing device 2 protrudes from the accommodating chamber.

Fig. 7 is a perspective view showing the structure of the fixed anti-climbing device of the present invention. The fixed anti-climbing device 2 includes a left anti-collision box 2-1, a right anti-collision box 2-2, a receiving chamber rear end beam 2-3, a receiving chamber upper cover 2-4, and a receiving chamber lower cover 2 -5 and two chute mounts 2-6. The inside of the accommodating chamber rear end beam 2-3, the left anti-collision box 2-1 and the right crash box 2-2 are provided with a plurality of reinforcing ribs disposed along the longitudinal direction of the vehicle body. The rear portions of the opposite side walls of the left anti-collision case 2-1 and the right anti-collision case 2-2 are fixed by the receiving cavity rear end beam 2-3 and the left anti-collision case 2-1 It is symmetrical with the right anti-collision box 2-2. The left and right ends of the accommodating chamber lower cover 2-5 are respectively fixed to the lower edges of the opposite side walls of the left collision preventing box 2-1 and the right collision preventing box 2-2. The rear end of the accommodating chamber lower cover 2-5 supports the lower ends of the accommodating chamber rear end beams 2-3 and is fixed to each other. The left and right ends of the accommodating chamber upper cover 2-4 are welded to the upper edges of the opposite side walls of the left collision preventing box 2-1 and the right collision preventing box 2-2, respectively. The rear end of the accommodating chamber upper cover 2-4 covers the upper end of the accommodating chamber rear end beam 2-3 and is fixed to each other. The two chute fixing seats 2-6 are respectively disposed on the lateral outer side walls of the left anti-collision case 2-1 and the right anti-collision case 2-2. The front end of the at least one crush tube 4 is vertically fixed to the rear end of the fixed anti-climbing device 2. For example, when a crush tube 4 is provided, the crush tube 4 can be vertically fixed to the rear end of the receiving chamber rear end beam 2-3. When two crushing pipes 4 are provided, the two crushing pipes 4 may be vertically fixed to the rear ends of the left crash box 2-1 and the right crash box 2-2, respectively.

The upper anti-collision box 2-1 and the upper anti-collision box 2-2 of the fixed anti-climbing device 2 may each have a mounting hole 2-7 for mounting the front end frame 9. As described above, the energy absorbing honeycomb 3 is located in front of the front end frame 9, and the at least one crushing tube 4 is located behind the front end frame 9.

Figure 8 illustrates an exemplary chute assembly 5 of the present invention. The lateral outer side wall of the chute assembly 5 and the left anti-collision box 2-1 or the right anti-collision box 2-2 is fixed by the chute fixing seat 2-6. The chute assembly 5 may include an upper mold half 5-1, a lower mold half 5-2, and a plurality of chute connection bolts 5-3. The upper mold half 5-1 may include an upper mold half chute portion 5-1-1 and an upper mold half abutment portion 5-1-2. The upper mold half abutting portion 5-1-2 is provided with a plurality of thread blind holes. The upper mold half chute portion 5-1-1 is an inverted right angle stepped structure. The upper surfaces of the upper mold half abutting portions 5-1-2 are respectively fixed to the chute fixing bases 2-6. The lower mold half 5-2 includes a lower mold half chute portion 5-2-1 and a lower mold half abutment portion 5-2-2. A plurality of threaded through holes are formed in the lower mold half abutting portion 5-2-2. The lower mold half chute portion 5-2-1 is a right angle stepped structure. The lower mold half abutting portion 5-2-2 and the upper mold half abutting portion 5-1-2 are in close contact with each other. The plurality of chute connecting bolts 5-3 respectively pass through the plurality of threaded through holes on the lower mold half abutting portion 5-2-2 and the plurality of thread blind hole threads on the upper mold half abutting portion 5-1-2 connection. The inverted stepped structure of the lower mold half chute portion 5-2-1 is combined with the stepped structure of the upper mold half chute portion 5-1-1 to form a complete chute structure. The boss rail surface of the guide rail 6 can be embedded in the interior of the chute structure from a horizontal direction to form a sliding connection.

The thickness of the boss of the guide rail 6 gradually decreases from front to back to form a wedge-shaped track. During the sliding of the chute assembly 5 from the front to the rear into the guide rail 6, the gap between them is larger and larger, thereby reducing the sliding frictional resistance and facilitating sliding.

The manner of the attachment may be a welding method.

Fig. 9 is a schematic view showing the action of the structure of the energy absorbing device of the present invention after impact. A shows the position of the movable anti-climbing device 1 and the fixed anti-climbing device 2 before the collision starts. B shows the position of the movable anti-climbing device 1 and the fixed anti-climbing device 2 when the primary energy absorbing element honeycomb 3 first completes the energy absorption during the collision. At this time, the front end of the movable anti-climbing device 1 and the front end of the fixed anti-climbing device 2 are flush. C shows the position of the movable anti-climbing device 1 and the fixed anti-climbing device 2 when the secondary energy absorbing member crushing tube 4 completes energy absorption. At this time, the fixed anti-climbing device 2 is retracted along with the movable anti-climbing device 1 along the chute assembly 5 until the crushing tube 4 is compressed to a large extent. The order of impact strength of the movable anti-climbing device 1, the fixed anti-climbing device 2, the energy absorbing honeycomb 3 and the crushing tube 4 is: fixed anti-climbing device 2> active anti-climbing device 1> crushing tube 4> energy absorbing honeycomb 3. Therefore, when a collision occurs, the energy absorption or destruction order of the components is the energy absorbing honeycomb 3, the crushing tube 4, the movable anti-climbing device 1, and the anti-climbing device 2. The triggering force of the crushing tube 4 may be at least 1.3 times the triggering force of the energy absorbing honeycomb 3, and the maximum energy absorbed by the crushing tube 4 may be at least 5 times of the maximum absorbed energy of the energy absorbing honeycomb 3.

When the energy absorbing device of the subway vehicle of the present invention is specifically applied, the rear ends of the two guiding slide rails 6 and the rear ends of the two crushing pipes 4 can be respectively fixed to the chassis of the vehicle body, and the energy absorbing honeycombs 3 can be The inner honeycomb inner cavity is inserted into the accommodating cavity of the fixed anti-climbing device 2 in a posture toward the longitudinal direction of the vehicle body. Thereafter, the rear end of the movable anti-climbing device 1 is also inserted into the accommodating chamber of the fixed anti-climbing device 2, so that the energy absorbing honeycomb 3 is completely enclosed in the accommodating chamber of the fixed anti-climbing device 2. Finally, the movable anti-climbing device 1 is movably connected to the fixed anti-climbing device 2 by two movable anti-climbing device long bolts 7, respectively, that is, the energy absorbing device installation of the subway vehicle of the present invention is completed. The movable anti-climbing device 1 and the fixed anti-climbing device 2 of the present invention are all preferably A588 type high-strength low-alloy carbon steel sheets. The energy absorbing honeycomb 3 is preferably a 5A05 type rustproof alloy provided by Zhongqi Qingdao Sifang Vehicle Research Institute Co., Ltd. The crushing pipe is preferably S550MC type structural steel provided by Zhongqi Qingdao Sifang Vehicle Research Institute Co., Ltd.

Claims

An energy absorbing device for a subway vehicle, comprising:

Active anti-climbing device,

Fixed anti-climbing device,

Energy absorbing honeycomb,

At least one crush tube,

Two chute assemblies, and

Two guide rails,

Wherein the middle section of the fixed anti-climbing device is provided with a receiving cavity with an open end, the energy absorbing honeycomb is embedded in the receiving cavity, and the rear end of the movable anti-climbing device and the front end of the fixed anti-climbing device pass two The movable anti-climbing device long bolts are connected, and the rear end surface of the movable anti-climbing device causes the energy absorbing honeycomb to be caught in the receiving cavity of the fixed anti-climbing device; the at least one crushing tube is vertically fixed a rear end of the fixed anti-climbing device; the two chute assemblies are symmetrically fixed to the outer side walls of the left and right ends of the fixed anti-climbing device; the two guiding slide rails are arranged in parallel in the The left and right ends of the anti-climbing device are fixed, and each of the guiding rails is slidably connected with a corresponding chute assembly.
The energy absorbing device for a metro vehicle according to claim 1, wherein said movable anti-climbing device comprises three flat plates, two side vertical plates, and a neutral plate, wherein said three flat plates are arranged in parallel with each other to form a flat plate. The left and right ends of the flat plate group are fixedly connected to a corresponding side vertical plate; the middle portions of the three flat plates are respectively provided with rectangular through grooves, and the neutral plates sequentially pass through the three flat plates. The respective rectangular through slots are secured to the three panels.
The energy absorbing device for a subway vehicle according to claim 2, wherein the front ends of the three flat plates are provided with at least one row of through holes.
The energy absorbing device for a metro vehicle according to claim 1, wherein the fixed anti-climbing device comprises:

Left anti-collision box,

Right anti-collision box,

a rear end beam of the accommodating chamber located between the left anti-collision box and the right anti-collision box and for fixing the rear side of the opposite side walls of the left anti-collision box and the right anti-collision box,

Accommodating the upper cover of the cavity,

Accommodating the lower cover of the cavity, and

Two chute mounts;

The inside of the receiving chamber rear end beam, the left anti-collision box and the right anti-collision box are respectively provided with a plurality of reinforcing ribs arranged along the longitudinal direction of the vehicle body; the left anti-collision box and the right defense The collision box body is symmetrically disposed; the left and right ends of the receiving chamber lower cover are respectively opposite to the left side fixed anti-climbing anti-collision box and the right side fixed anti-climbing anti-collision box a lower edge of the wall is welded, a rear end of the receiving chamber lower cover supports a lower end of the rear end beam of the receiving cavity, and is fixed to a lower end of the rear end beam of the receiving cavity; And the right ends are respectively welded to the upper edges of the opposite side walls of the left collision preventing box and the right collision preventing box, and the rear end of the upper cover of the receiving cavity covers the upper end of the rear end beam of the receiving cavity And being fixed to an upper end of the rear end beam of the receiving cavity; a front end of the at least one crushing pipe is vertically fixed to a rear end of the fixed anti-climbing device.
The energy absorbing device for a subway vehicle according to claim 4, wherein an upper surface of said left collision preventing box and said right collision preventing box are provided with a mounting hole for mounting a head of said subway vehicle a front end skeleton of the vehicle, the energy absorbing honeycomb is located in front of the front end frame, the at least one crushing tube is located behind the front end frame, and the two guiding slide rails and the vehicle of the head vehicle of the subway vehicle The body frame is fixed.
An energy absorbing device for a subway vehicle according to any one of claims 1 to 5, wherein a part of the movable anti-climbing device is inserted into the accommodating chamber and a front end of the movable anti-climbing device protrudes from the accommodating chamber The energy absorbing honeycomb is completely enclosed by the rear end surface of the movable anti-climbing device in the accommodating cavity of the fixed anti-climbing device.
The energy absorbing device for a metro vehicle according to claim 6, wherein the movable anti-climbing device, the energy absorbing honeycomb, the fixed anti-climbing device, and the at least one crushing pipe have an impact strength as follows The sequence is sequentially weakened: the fixed anti-climbing device, the movable anti-climbing device, the at least one crushing tube, and the energy absorbing honeycomb.
The energy absorbing device for a metro vehicle according to claim 7, wherein each of the two chute assemblies comprises:

Upper mold,

Lower mold half, and

Multiple chute connection bolts,

The upper mold half includes an upper mold half chute portion and an upper mold half abutting portion, the upper mold half abutting portion is provided with a plurality of thread blind holes, and the upper mold half chute portion is an inverted right angle stepped structure. The upper mold half is fixed to the lateral outer side wall of the left crash box or the right crash box; the upper surface of the upper mold half is disposed on the left crash box or the a sliding slot fixing seat on the lateral outer side wall of the right anti-collision box; the lower mold half includes a lower mold half chute portion and a lower mold half abutting portion, and the lower mold half abutting portion is provided with a plurality of threads a through hole, the lower mold half chute portion is a right angle step structure; the upper mold half abutting portion and the lower mold half abutting portion are in close contact with each other, and the plurality of chute connecting bolts respectively pass through the lower half a plurality of threaded through holes on the die abutting portion are fixed to the plurality of threaded blind holes provided on the upper mold half abutting portion; the inverted right angle step structure of the upper mold half chute portion and the lower mold half sliding The right-angled stepped structure of the groove portion is combined to form a complete sliding groove; the convex rail surfaces of the two guiding sliding rails are correspondingly embedded in the horizontal direction respectively Two chute assembly such that said fixed anti-climbers can slide along the two guide rails.
The energy absorbing device for a metro vehicle according to claim 8, wherein a thickness of the boss of each of the two guide rails is gradually reduced from front to rear to form a wedge-shaped track, when the chute assembly is from front to back When sliding into the guide rail, the gap between the chute assembly and the guide rail gradually increases.
The energy absorbing device for a metro vehicle according to claim 9, wherein the triggering force of the at least one crushing tube is at least 1.3 times the triggering force of the energy absorbing unit, and the at least one crushing tube is maximally absorbed. The energy is at least 5 times the maximum absorbed energy of the energy absorbing cell.
A method of installing an energy absorbing device for a subway vehicle according to claim 6, wherein

Step 1, the rear ends of the two guiding rails and the rear end of the at least one crushing pipe are respectively fixed to the chassis of the vehicle body,

Step 2, inserting the energy absorbing honeycomb into the accommodating cavity of the anti-climbing device with the internal honeycomb cavity facing the longitudinal direction of the vehicle body.

Step 3, inserting a rear end of the movable anti-climbing device into a receiving cavity of the fixed anti-climbing device, and a front end of the movable anti-climbing device protrudes from the receiving cavity

In step 4, the movable anti-climbing device is movably connected to the fixed anti-climbing device by two movable anti-climbing device long bolts.