WO2024007846A1

WO2024007846A1 - Railway vehicle body, rerailing and vehicle lifting system, and rerailing and vehicle lifting method

Info

Publication number: WO2024007846A1
Application number: PCT/CN2023/101021
Authority: WO
Inventors: 苏柯; 金希红; 刘永强; 冉洪宾; 李孟梁; 丁艳辉; 谭易成; 刘健
Original assignee: 中车株洲电力机车有限公司
Priority date: 2022-07-06
Filing date: 2023-06-19
Publication date: 2024-01-11
Also published as: CN115352476A

Abstract

Disclosed in the present invention are a railway vehicle body, a rerailing and vehicle lifting system, and a rerailing and vehicle lifting method. The railway vehicle body comprises a vehicle body upper structure and a chassis, wherein workshop access door openings are provided in the centers of two ends of the vehicle body upper structure; two sides of the vehicle body upper structure are provided with several passenger room door openings; end wall stand columns are arranged on two sides of each workshop access door opening; door stand columns are arranged on two sides of each passenger room door opening; the chassis comprises chassis edge beams, a traction beam, a sleeper beam, a coupler mounting seat, a traction beam cover plate, a traction guide beam and a floor board; an end beam is connected to the vehicle body upper structure; the sleeper beam is provided between the two chassis edge beams; the traction guide beam, the coupler mounting seat, the traction beam cover plate and the traction beam are sequentially arranged between the end beam and the sleeper beam; and a front end and a rear end of the traction beam cover plate are respectively correspondingly connected to the traction guide beam and the traction beam. The rerailing and vehicle lifting method of the present invention is simple, has high operation efficiency, is convenient to operate and less time-consuming, and is highly beneficial for operations in narrow and small spatial areas such as tunnels.

Description

Rail vehicle body, rerailing system and method of rerailing

Technical field

The invention relates to a rail vehicle body, a rerailing system and a method for rerailing the vehicle, and belongs to the technical field of rail vehicles.

Background technique

Due to poor track conditions, abnormal turnout closures, out-of-control trains, operating errors, natural disasters and other reasons, accidents such as train derailments still occur from time to time. If a derailment accident occurs and the train cannot be re-tracked quickly, it will seriously affect the completion progress of the operation and the restoration of track traffic. Therefore, how to efficiently complete train re-railing is one of the biggest issues facing the safety of railway transportation.

There are currently three main rerailing methods used on railway lines: top rerailing, pull rerailing and hanging rerailing. The pulling method is to place a rerailing device, a rail forcing device at an appropriate position at one end of the derailed locomotive and vehicle in the rerailing traction direction, or with the help of natural conditions of line equipment, and use the main locomotive, rescue locomotive or pulling equipment to pull along the line direction to prevent the derailment. A rescue method in which the rolling stock rolls onto the track along the track forcing device and the rerailing device. The hoisting and recovery method mainly uses a rail crane to lift the train and place it on the track. According to the operating conditions, rescue hoisting can be divided into two methods: on-line hoisting and adjacent line hoisting. The former means that the crane and the accident vehicle are on the same line. The latter refers to the operation of the crane and the accident vehicle on adjacent lines. The jacking method is a method of using a hydraulic rerailer to jack up a derailed locomotive train, so that the derailed train is a certain distance above the track plane, and then reset laterally. At present, the rerailers used after derailment of train locomotives at home and abroad are mainly hydraulic rerailers. Its advantages include simple structure, small size, simple operation and high safety performance. When the rescue space after a train derails is large enough, the pulling method and the lifting method can be considered. However, when rescuing a train that derails in a narrow space such as a tunnel, it is usually necessary to use the jacking and re-tracking method.

Based on the needs of train rerailing and train overhaul and maintenance, the current car body structure requires a certain number of special rack seats on the car body chassis, including rerail rack seats, pillow inner rack seats, and pillow outer rack seats. seat. The traction beam or coupler base located in the area below the coupler mounting seat is usually equipped with a double rail frame seat. A pillow inner frame seat is provided on the lower surface of the underframe side beam in the area inside the bolster and the bolster, and the traction beam on the outside of the bolster corresponds to A pillow outer frame seat is provided on the lower surface of the chassis side beam of the area. Among them, the sleeper inner frame seat and the sleeper outer frame seat are mainly used for train overhaul and maintenance carriages, and are used to assist rerailing carriages in emergencies. At the same time, due to the large number of passenger compartment doors in the subway car body, the lightweight requirements of the car body are high. If the bogie is not separated in advance, but the car is built as a whole with the bogie, only the pillow inner frame seat can be used. At this time, if If the car has an external pillow frame, permanent deformation or even cracking will occur in key parts such as door corners, window corners, and chassis, posing safety risks to normal operations. The pillow-frame saddle can only be used when the vehicle is not equipped with a bogie frame.

There are two types of rerailing frame seats. There are usually two types of rerailing frame seats located below the coupler mounting base. One is the welding method, such as the patent CN201410115828.1, which is a double-rail frame car seat under the coupler mounting profile cover, and the other is the detachable method, which uses a transition piece and is fixed on the car body through bolts, such as the patent CN201220178674.7 and Solutions provided by CN201220362245.5 and others. Due to the structural limitations of the car body around the polyrail carriage seats, the width of these polyrail carriage seats is limited in the longitudinal (train operation) direction, usually no more than 150mm. If the train derails and tilts seriously, before re-railing and moving laterally, the tilted side needs to be jacked up first to make the car body in a horizontal state. At this time, the only way to do this is with the help of racks located on the undercarriage and side beams on both sides of the train. Carry out jacking operation. However, when a train derails and tilts seriously, and occurs in a tunnel, the gap between the tilted side and the tunnel is often very small, and the space is very limited. The pillow inner frame seat under the bottom frame side beam is used for lifting operation. very difficult. At this time, the disassembly and reassembly of the bogie is difficult and time-consuming. Using the pillow outer frame seat to lift the bogie without disassembling the bogie will bring a greater risk of permanent damage to the car body. In this scenario, the positions of both ends of the vehicle body are relatively For open areas, the optimal rescue method is to jack up from the end direction (the direction of vehicle operation, that is, the tunnel extension direction) and then move it laterally. However, due to limitations in the strength of the vehicle body structure and other reasons, there is currently no similar vehicle body structure and vehicle mounting method disclosed.

In addition, as the current subway trains have increasingly higher requirements for collision safety, the coupler connector needs to be equipped with energy-absorbing elements of sufficient length to meet the collision energy-absorbing requirements, causing the coupler base to retreat relatively and be closer to the bogie. As a result, the slope of the tractor beam of the car body is steeper and the stress concentration is more serious. At the same time, the traditional tractor beam cover under the coupler adopts a plate bending structure, which requires a certain bending radius and leaves no extra space to provide a wider installation. The flat surface is used to set up wider traverse frames. At the same time, the material elongation in the bending area is reduced, and welding defects are prone to occur, which is not conducive to the welding and fixation of the saddle. This is also one of the problems to be solved by the present invention.

Contents of the invention

The present invention aims to provide a rail vehicle body, a rerailing car system and a method of rerailing a car, which can solve at least one of the following problems:

1) Currently, there is insufficient operating space and low operating efficiency when jacking and erecting rail vehicles that roll in the tunnel using pillow inner frame seats;

2) At present, when using the bolster outer frame seat for lifting, the bogie needs to be disassembled in advance, which is time-consuming and complex;

3) When currently using a pillow-frame seat for lifting, if the bogie is not disassembled, permanent damage will be caused to the vehicle body, and the hazards are difficult to fully assess;

4) Due to the current limitations of the structural strength of the car body and the layout space of the double rail frame seat, it is impossible to use two jacks side by side at the tractor beam position for lifting and traversing operations respectively;

5) The existing car body structure has a large distance between the traction beams, which will cause a large unbalanced load when lifting the car body, resulting in greater Due to the uneven stress, door corners, window corners, chassis and other parts are prone to excessive stress.

In order to achieve the above objects, the technical solutions adopted by the present invention are:

A rail vehicle body, including a car body upper structure and a chassis located directly below the car body upper structure; characterized by;

The chassis includes chassis side beams, traction beams, pillow beams, coupler mounting seats located on both sides, a traction beam cover located below the coupler mounting seat, traction guide beams, end beams located at the front and rear ends, and the chassis side beams. The floor between the beam and the end beam; the end beam is connected to the upper structure of the car body, a bolster parallel to the end beam is provided between the two chassis side beams, and traction guide beams are arranged in sequence between the end beam and the bolster , coupler mounting base and tractor beam;

The tractor beam cover is a hollow profile structure.

Therefore, the present invention uses a special car body structure to adapt to the needs of subsequent rerailing trucks. The traction beam cover adopts a hollow profile structure to form a stress-bearing platform for the rerailing trucks, thus avoiding the possibility of lifting the car body. The eccentric load causes excessive stress in the door corners, window corners, chassis and other parts. It is convenient to operate the derailed rail vehicle with severe roll from the direction of the body end. The rerail frame seat and traverse device are used under the coupler base. Jacking and re-railing has a simple structure, easy operation, less time consumption, and is suitable for a wide range of scenarios, especially in tunnels and other narrow areas.

According to the embodiments of the present invention, the present invention can also be further optimized. The following is the technical solution formed after optimization:

In one of the preferred embodiments, the traction beam cover includes cover diagonal bars, first cover vertical bars, second cover vertical bars and cover transverse bars; both ends of the first cover vertical bars They are respectively connected with the cover plate diagonal ribs and the cover plate transverse ribs. The two ends of the second cover plate vertical ribs are respectively connected with the cover plate diagonal ribs and the cover plate transverse ribs. The cover plate diagonal ribs, The first cover plate vertical ribs, the second cover plate vertical ribs and the cover plate horizontal ribs The ribs enclose the forming cavity structure; the first cover plate vertical ribs and the second cover plate vertical ribs are mainly used to transmit the vertical force flow Fz1' from the cover plate transverse ribs to the cover plate diagonal ribs. The cover plate diagonal ribs are mainly used to carry the load from the cover plate to the cover plate. The longitudinal force flow Fx1 transmitted from the coupler mounting seat.

Preferably, the end of the diagonal rib of the cover plate has a thicker boss. The boss increases the effective thickness of the weld and transfers some of the stress concentration to the base metal area where the plate thickness is thinner.

In one of the preferred embodiments, the coupler mounting base has a symmetrical structure, with the middle part being a mounting panel for installing the coupler connector, and the two wing parts being closed mold cavities. Preferably, the projection of the closed cavity on the horizontal plane is triangular or pentagonal. The mounting panel is generally in the vertical plane and the closed cavity also extends generally in the vertical direction. Based on the same inventive concept, the present invention also provides a rail vehicle re-rail frame system, which includes the above-mentioned rail vehicle body, re-rail frame seat, pillow inner frame seat, pillow outer frame seat and end beam The carriage seat is located on the lower surface of the traction beam cover, and the carriage seat inside the pillow is located on the lower surface of the chassis side beam in the corresponding position of the pillow or between the front and rear pairs of pillows. The carriage seat is located on the lower surface of the chassis side beam in the area between the end beam and the bolster, and the end beam carriage seat is located on the lower surface of the end beam; preferably, the upper structure of the vehicle body is provided with a workshop at the center of both ends. There are several passenger door openings on both sides of the upper structure of the vehicle body; there are end wall columns on both sides of the workshop passage door opening, and door columns on both sides of the passenger compartment door opening; the end beam frame seat is not arranged in the workshop passage door opening , the pillow inner frame seat and the pillow outer frame seat are not arranged in the passenger room door opening area; more preferably, the pillow inner frame seat and the pillow outer frame seat are aligned with the end wall pillars and door pillars.

In one of the preferred embodiments, the tractor beam is set as a transition portion with a turning angle and radian in the area of the wheel pair and gear box of the bogie, and maintains a certain safe distance from the wheel set and gear box.

In one of the preferred embodiments, the rail frame seat is in an "n" shape, with the frame in the middle. The vehicle part and the two wing parts are the lifting parts; preferably, the vehicle part is located directly below the mounting panel of the coupler mounting seat, the lifting part is located directly below the closed cavity of the coupler mounting seat, and the lifting part is covered all around with more than the closed Cavity area; Preferably, the outer side of the closed cavity of the coupler mounting seat is provided with an oval-shaped bolt installation process hole, which is used to install the bolts fixed in the coupler mounting hole on the mounting panel; the coupler mounting hole is located at the end of the closed cavity The central part is on the same straight line as the vertical reinforcement of the traction beam in the traction beam.

Based on the same inventive concept, the present invention also provides a method for using the rail vehicle rerailing system to carry out rerailing, which includes the following steps:

S1. Install wheel stoppers in both directions on the bogie wheels that do not jack up the end of the rail vehicle;

S2. Arrange a set of lifting devices at the front and rear in the longitudinal direction under the rerail frame seat;

Use the first set of lifting devices on the two wing areas of the rerail frame seat to lift the side that is tilted back to balance;

S3. Use the second set of jacking devices in the central area of the rerail frame seat to lift the car body to a certain height simultaneously with the first set of jacking devices;

S4. Perform the traverse operation of the first set of jacking devices and the second set of jacking devices simultaneously and lower them to the rails.

When specifically rerailing a car, any one of the following four options can be used according to the actual situation:

Option 1: When the bogie is not disassembled and continues to be connected to the bolster, a lifting machine with a traverse function is used to lift the carriage seat of the rerail frame, and at least one lifting device is fixed on the traverse trolley; The specific operation is as follows: install wheel stoppers in both directions on the bogie wheel pair at the non-jacking end of the rail vehicle, and use two rows of lifting devices under the rerail frame seat. When lifting, first place the wheel on the lower side of the rail vehicle. A set of lifting devices is used under the lifting part of the rerailing frame's seat to lift the rail vehicle to a balanced state, and then another set of lifting devices under the carriage is raised until it contacts the rerailing frame's seat. Jacking device synchronization The car body is lifted to a certain height, and the rail vehicle is moved laterally under the action of the traversing trolley, and then moved to the center of the track to achieve re-railing;

Option 2: When the bogie is not disassembled and continues to be connected to the bolster, use a set of lifting devices at the seat of the inner frame of the bolster to lift the low side of the rail vehicle, and lift the steering wheel at the end of the rail vehicle that is not lifted. Wheel stoppers are installed in both directions on the frame wheel pair. After the rail vehicle is lifted to a balanced state, the lifting device under the frame car is raised until it contacts the rerail frame seat. The two lifting devices simultaneously lift the car body. When it reaches a certain height, the rail vehicle is moved laterally under the action of the traverse trolley, and moves to the center of the track to achieve re-railing;

Option 3: When the bogie is disassembled, use a set of jacking devices at the seat of the pillow outer frame to jack up the low side of the rail vehicle, and install wheel stoppers in both directions on the bogie wheel pair at the unlifted end of the rail vehicle. , after lifting the rail vehicle to a balanced state, then raise the lifting device under the frame car part until it contacts the rerail frame seat. The two lifting devices simultaneously lift the car body to a certain height. Under the action of the rail vehicle, the rail vehicle moves laterally, and when it moves to the center of the track, it drops to the bogie placed on the track in advance to achieve re-railing;

Option 4: When the bogie is disassembled, use a jacking device at the end beam frame seat to jack up the low side of the rail vehicle, and install wheel stoppers in both directions on the bogie wheel pair at the unlifted end of the rail vehicle. , after lifting the rail vehicle to a balanced state, then raise the lifting device under the frame car part to contact the rerail frame seat, and move the rail vehicle laterally under the action of the traverse trolley. When it moves to the center of the track Drop to the bogie placed on the track in advance to achieve re-orbiting.

In option three or four, when the bogie is completely disassembled, a rescue vehicle is used to perform rescue operations as long as the rescue space and equipment permit; the specific steps are as follows:

Open the support plate of the rescue vehicle to stabilize the front end of the rescue vehicle, and secure the end of the rail vehicle that is not jacked up. The bogie wheels are equipped with wheel stoppers in both directions. Use the fork of the rescue vehicle to lift the low side of the rail vehicle at the end beam frame seat. After the rail vehicle is lifted to a balanced state, a moving mechanism is used to move the rail vehicle horizontally. When moving to the center of the track, it will drop to the bogie placed on the track in advance to achieve re-orbiting.

Preferably, the lifting device is a jack, and the rail vehicle can use two jacks at the same time at the tractor beam position to perform rerailing with a bogie.

The present invention optimizes the structure of the traction beam of the car body chassis, transfers the coupler installation process hole, and shortens the distance between the two rows of traction beams. It provides two rows of front and rear rerail frame seats in the longitudinal direction under the coupler installation, and simultaneously fixes the chassis side beams. Strengthen other parts to meet the requirements for rapid jacking and lateral movement of the vehicle body after the vehicle derails and rolls.

The rail vehicle body of the present invention adopts a hollow aluminum profile structure, is equipped with a coupler with a long energy-absorbing stroke, and the bogie is close to the end.

The coupler mounting seat of the rail vehicle of the present invention adopts an extruded profile with a triangular structure, and the lower cover of the traction beam adopts a profile structure, which provides a mounting plane for a wide-body frame seat or multiple frame seats, and at the same time provides diagonal ribs to support the coupler force. plate.

The rail vehicle of the present invention preferentially uses two rows of parallel jacking devices at the traction beam frame point to re-rail the rail vehicle that has derailed and rolled.

Therefore, for a derailed rail vehicle that experiences severe roll, the present invention operates from the end of the vehicle body, jacks up the rerail carriage seat under the coupler base, and moves it laterally. The specific steps are: for:

1) Install wheel stoppers in both directions on the bogie wheel pair that is not jacked up to prevent the wheel pair from moving along the track and causing Pickaxe accident;

2) Arrange a set of lifting devices (jacks or other hydraulic devices) at the front and rear in the longitudinal direction under the rerail frame seat;

3) Use the first set of lifting devices on the two wing areas of the rerail frame seat to lift the side that is tilted back to balance;

4) Use a second set of jacking devices in the center area of the double rail frame’s seat to lift the car body to a certain height simultaneously with the first set of jacking devices;

5) The first set of lifting devices and the second set of lifting devices are moved laterally at the same time and dropped onto the rails.

Compared with the prior art, the beneficial effects of the present invention are:

1) The present invention can complete rerailing operations such as jacking and traversing a rolling rail vehicle by only using the rerailing frame seat. There is no need to disassemble the bogie. The method is simple, the operation efficiency is high, the operation is convenient, and the time consumption is low. , which is very beneficial for working in narrow areas such as tunnels.

2) The present invention cleverly adopts an extruded hollow profile structure for the traction beam cover plate, and uses the triangular traction beam profile structure to shorten the distance between the traction beams, thereby solving the problem of vehicle body structure strength and stress deviation caused by large eccentric loads when jacking up the vehicle. The problem is high, and the bogie, coupler and other equipment plans as well as the main structure of the car body remain unchanged from before the innovation. It does not affect the existing production and preparation system. It has a solid foundation, good applicability, strong versatility and lower cost.

3) The present invention is provided with spare rerailing points at the side beams and end beams of the chassis, further improving the operability of emergency rescue and the versatility of the car body structure.

Description of the drawings

Figure 1: Schematic diagram of the vehicle body structure of an embodiment of the present invention;

Figure 2: Schematic diagram of the partial structure of the vehicle;

Figure 3: Schematic diagram 1 of the distribution of the carriage seats;

Figure 4: Schematic diagram 2 of the distribution of saddles;

Figure 5: Schematic diagram of the partial structure of the chassis;

Figure 6: Schematic diagram of the pulling and slowing structure, in which a) is a side view and b) is a top view;

Figure 7: Schematic diagram of lifting devices placed side by side;

Figure 8: Schematic diagram of jacking balance;

Figure 9: Schematic diagram of lifting and traversing;

Figure 10: Schematic diagram of rescue vehicle assisting re-railing. a) is a schematic side view, and b) is an enlarged partial top view of a.

In the picture:
Car body body 1, car body upper structure 11, workshop passage door opening 11a, passenger room door opening 11b, end wall column 111, door column 112, chassis 12, chassis side beam 121, traction beam 122, transition part 122a, traction beam vertical Rib 1221, bolster 123, coupler mounting seat 124, coupler mounting hole 124a, bolt installation process hole 124b, closed cavity 1241, mounting panel 1242, traction beam cover 125, boss 125a, cover diagonal rib 1251, first Cover vertical ribs 1252, second cover vertical ribs 1253, cover transverse ribs 1254, traction guide beam 126, end beam 127, floor 128, double rail carriage seat 2, carriage part 21, jacking part 22, inner pillow Frame seat 3, pillow outer frame seat 4, end beam frame seat 5, coupler connector 6, coupler base 61, energy absorbing element 62, bogie 7, wheelset 71, gear box 72, air spring 73, Rack machine with traverse function 8, jacking device 81, traverse trolley 82, rescue vehicle 9, fork 91, support plate 92, moving mechanism 93;
The width of the mounting surface is L0, L0', the distance between the coupler base and the gear box is L1, and the spacing between the lifting devices is W1.
Traction beam vertical plate spacing hc, height h1, longitudinal force Fx, longitudinal force flow Fx1, vertical force Fz, Fz', vertical force flow Fz1, Fz1'.

Detailed ways

The present invention will be described in detail below with reference to the accompanying drawings and embodiments. It should be noted that, as long as there is no conflict, the embodiments and features in the embodiments of the present invention can be combined with each other. For the convenience of description, if the words "up", "down", "left" and "right" appear in the following, they only mean that they are consistent with the directions of up, down, left and right in the drawing itself and do not limit the structure.

The distribution of a rail vehicle and its carriage seats according to an embodiment of the present invention is shown in Figures 1, 2, 3 and 4. The rail vehicle rerail carriage system mainly includes a car body 1, a rerail carriage seat 2. It consists of pillow inner frame seat 3, pillow outer frame seat 4, end beam frame seat 5, coupler connector 6, traverse trolley 82 and bogie 7. The rerailing frame seat 2 is used for rerailing the rail vehicle after the rail vehicle derails. The sleeper inner frame seat 3 and the pillow outer frame seat 4 are mainly used for rail vehicle overhaul or frame repair, and can also be used as backup for rerailing jacking cars; the end beam frame seat 5 is mainly used for backup of rerailing jacking cars. The bogie 7 can be used without disassembling the rail frame seat 2 and the bolster inner frame seat 3.

The vehicle body 1 according to an embodiment of the present invention includes a vehicle body upper structure 11 and a chassis 12 . The chassis 12 is located directly below the vehicle body upper structure 11 . The vehicle body superstructure 11 is provided with a workshop passage door opening 11a at the center of both ends, and a number of passenger room door openings 11b on both sides. There are end wall columns 111 on both sides of the workshop passage door opening 11a, and door columns 112 on both sides of the guest room door opening 11b.

The chassis 12 of one embodiment of the present invention includes chassis side beams 121, traction beams 122, bolsters 123, coupler mounting seats 124, traction beam covers 125, traction guide beams 126, end beams 127 and floors 128. The chassis side beams 121 are located on both sides, and the end beams 127 are located at the front and rear ends and are connected to the vehicle body upper structure 11 . A floor 128 is provided between the chassis side beam 121 and the end beam 127 for carrying in-vehicle facilities and passengers. A bolster 123 parallel to the end beam 127 is provided between the two underframe side beams 121. Between the end beam 127 and the bolster 123, a traction guide beam 126, a coupler mounting seat 124, a traction beam cover 125 and Traction beam 122. The traction beam cover 125 is located below the coupler mounting seat 124, and is connected to the traction guide beam 126 and the traction beam 122 in the front and rear respectively.

Based on the allowable range of vehicle limits and vehicle weight, the height h1 of the chassis side beam 121 from the floor surface of the vehicle body to the lower surface is set to be high enough and arranged along the entire length in the longitudinal direction, especially in the inner frame seat 3 with pillows. The 4 positions of the sleeper outer frame and the seat are not machined to reduce the effective height and improve the rigidity of the entire vehicle to ensure that the stress in the door corners and other parts does not exceed the standard during the rerailing process. According to the actual situation, the height h1 of the bottom frame side beam 121 of type A subway cars should be set to about 300mm, and that of type B subway cars should be set to about 200mm.

The rail frame seat 2, the pillow inner frame seat 3, the pillow outer frame seat 4, and the end beam frame seat 5 are located below the base frame 12. The double rail frame seat 2 is located on the lower surface of the traction beam cover 125, the pillow inner frame seat 3 is located on the lower surface of the chassis side beam 121 in the corresponding position of the pillow 123 or in the area between the front and rear pairs of pillows 123, and the pillow outer frame The seat 4 is located on the lower surface of the chassis side beam 121 in the area between the end beam 127 and the bolster 123, and the end beam frame seat 5 is located on the lower surface of the end beam 127.

The end beam frame seat 5 is not arranged in the workshop passage door opening 11a, and the pillow inner frame seat 3 and the pillow outer frame seat 4 are not arranged in the passenger room door opening 11b area, and are prioritized to be aligned with the end wall column 111 and the door column 112 set up.

The traction beam 122 is set as a transition portion 122a with a turning angle and radian in the area of the wheelset 71 and the gearbox 72 of the bogie 7 , and maintains a certain safe distance from the wheelset 71 and the gearbox 72 , and the bogie 7 must be considered The vertical displacement deviation of suspension elements such as the hollow air spring 73 causes the distance between the wheelset 71, the gearbox 72 and the vehicle body 1 to become closer, thus preventing the transition portion 122a of the tractor beam 122 from interfacing with the wheelset 71 and the gearbox 72 at position A. interference phenomenon. Since the current subway trains have increasingly higher requirements for collision safety, the coupler connector 6 needs to be provided with an energy-absorbing element 62 of sufficient length to meet the collision energy-absorbing requirements, causing the coupler base 61 to retreat relatively, and the coupler base 61 is not in contact with the gear box 72 in the bogie 7 The distance L1 between them is smaller. At the same time, the coupler base 61 itself has a large height, and there is a large height difference between the tractor beam cover 125 and the chassis side beam 121. Therefore, the shape and angle of the transition portion 122a of the tractor beam 122 are almost at the limit value. At this time, the mounting surface width L0' provided by the conventional plate-bending tractor beam cover plate structure cannot be effectively expanded. This application draws the beam cover 125 Using a hollow profile structure, several cavities are added below the traditional plate bending structure, and a larger mounting surface width L0 is provided for installing the derailleur carriage seat 2.

Figure 5 is a schematic diagram of the partial structure of the chassis, and Figure 6 is a schematic diagram of the tensioning structure. The rerail frame seat 2 is welded to the lower surface of the tractor beam cover 125, and the tractor beam cover 125 is welded to the bottom of the coupler mounting seat 124.

The traction beam cover 125 of this embodiment at least includes a boss 125a, a cover diagonal rib 1251, a first cover vertical rib 1252 and a cover transverse rib 1254. A number of second cover vertical ribs 1253 can be added as needed. The two ends of the slab vertical ribs 1252 are respectively connected to the cover plate diagonal ribs 1251 and the cover plate transverse ribs 1254. The two ends of the second cover plate vertical ribs 1253 are respectively connected to the cover plate diagonal ribs 1254 and the cover plate transverse ribs 1251. The cover plate diagonal ribs 1251, the first cover plate vertical ribs 1252 and the cover plate transverse ribs 1254 form a closed cavity structure. The first cover plate vertical rib 1252 and the second cover plate vertical rib 1253 are mainly used to transmit the vertical force flow Fz1' from the cover plate transverse rib 1254 to the cover plate diagonal rib 1251; at the same time, the cover plate diagonal rib 1251 is also mainly used to Carrying the longitudinal force flow Fx1 transmitted from the coupler mounting seat 124. A relatively thicker boss 125a is provided at the end to increase the effective thickness of the weld and transfer part of the stress concentration to the base metal area where the plate thickness is thinner.

The rerail carriage seat 2 in one embodiment of the present invention is in an "n" shape (the projection on the horizontal plane is an "n" shape or a "u" shape). The rerail carriage seat 2 has a smaller middle width and is a frame. The car part 21; the two wings of the rail frame car seat 2 are wider and are the lifting parts 22.

The coupler mounting seat 124 in one embodiment of the present invention has a symmetrical structure. In the middle of the coupler mounting seat 124 is a thicker mounting panel 1242, which is used to install the coupler connector 6 and carry the vertical force acting on the cover plate transverse ribs 1254. The vertical force flow Fz1 transmitted from force Fz. The two wings of the coupler mounting base 124 are closed cavities 1241, which can be arranged in triangles, pentagons, etc. (the projection on the horizontal plane is triangle or pentagon), and are mainly used to transmit the longitudinal force Fx acting on the mounting panel 1242. The vertical force flow Fx1 brought by the longitudinal force flow Fx1 at the same time carries the vertical force flow Fz1' transmitted from the vertical force Fz' acting on the tractor beam cover 125.

The carriage part 21 of one embodiment of the present invention is located directly below the mounting panel 1242 of the coupler mounting seat 124, the lifting part 22 is located directly below the closed mold cavity 1241, and the lifting part 22 covers the area beyond the closed mold cavity 1241. , the force can be effectively transmitted to the closed cavity 1241 when bearing. The lifting device spacing W1 between the carriage part 21 and the lifting part 22 is large enough to allow two rows of lifting devices 81 to be placed side by side. When the lifting device 81 acts on the frame part 21 , the force flow is transmitted to the vertically arranged mounting panel 1242 in the coupler mounting seat 124 through the cover transverse ribs 1254 of the tractor beam cover 125 . When the lifting device 81 acts on the lifting part 22, the force flow passes through the first cover plate vertical rib 1252 of the traction beam cover plate 125, and the second cover plate vertical rib 1253 is transmitted to the cover plate diagonal rib 1251, and then transmitted to the coupler. On the closed cavity 1241 of the mounting base 124. Finally, it is transmitted to the traction guide beam 126, the end beam 127, the floor 128 and the entire vehicle body 1 through the coupler mounting seat 124, thus having good overall load-bearing performance.

The outer surface of the closed cavity 1241 of the coupler mounting base 124 is provided with an oval-shaped bolt installation process hole 124b, which is used for installing bolts fixed in the coupler mounting hole 124a on the mounting panel 1242. There is no need to drill process holes on the traction beam cover 125 to avoid occupying the space for the jacking portion 22 in the rerail frame seat 2 . The coupler mounting hole 124a is located in the center of the closed cavity 1241 and is on the same straight line as the tractor beam vertical rib 1221 in the tractor beam 122. It has good load-bearing capacity and can effectively transmit the huge load brought by the coupler connector 6, and at the same time Minimize the distance hc between the tractor beam vertical plates. When the lifting device 81 acts on the lifting portion 22, the stress deviation caused by the offset of the center of gravity on both sides of the vehicle body 1 is reduced to a minimum, thereby improving the safety margin of the material.

Figure 7 is a schematic diagram of the lifting devices placed side by side. Figure 8 is a schematic diagram of lifting balance, and Figure 9 is a schematic diagram of lifting and traversing.

When working, the following solution is usually adopted: when the equipment such as the bogie 7 is not disassembled and continues to be connected to the bolster 123, the carriage machine 8 with a traverse function can be used at the seat 2 of the rerail frame to lift, and to At least one lifting device 81 is fixed on the traverse trolley 82. The specific operation is: if one end of the bogie wheel pair is not jacked up, install the wheel stopper in both directions, and use two rows of jacking devices with a longitudinal distance of about w1 and a transverse distance of about hc/2 under the rerail frame seat 2. 81. First, use the lifting device 81 below the lifting part 22 of the rail frame seat 2 on the low side of the rail vehicle to lift the rail vehicle to a balanced state, and then raise the lifting device 81 below the lifting part 21 to In contact with the rerailing frame seat 2, the two lifting devices 81 synchronously lift the car body to a certain height. Under the action of the traverse trolley 82, the rail vehicle is moved laterally and moved to the center of the track to realize rerailing of the rail vehicle.

In some embodiments, alternative preferred solution 1 can also be adopted: when the bogie 7 and other equipment are not disassembled and continue to be connected to the bolster 123, the lifting device 81 can be used at the seat 3 of the bolster inner frame to lift the rail vehicle Lift the lower side, and install wheel stoppers in both directions on the bogie wheel pair at the end that is not jacked up. After the rail vehicle is lifted to a balanced state, the jacking device 81 under the carriage part 21 is then raised to the position of rerailing. The carriage seat 2 is in contact, and the two lifting devices 81 simultaneously lift the vehicle body to a certain height. Under the action of the traverse trolley 82, the rail vehicle is moved laterally and moved to the center of the track to realize re-railing of the rail vehicle.

In some embodiments, alternative preferred solution 2 can also be adopted: when the bogie 7 and other equipment are disassembled, the lifting device 81 can be used at the pillow outer frame seat 4 to lift the low side of the rail vehicle, and If the bogie wheel pair at one end is not jacked up, a wheel stopper is installed in both directions. After the rail vehicle is lifted to a balanced state, the lifting device 81 under the carriage part 21 is raised to contact the rerail frame seat 2. The two lifting devices 81 simultaneously lift the vehicle body to a certain height. Under the action of the traversing trolley 82, the rail vehicle moves laterally, moves to the center of the track, and drops to the bogie 7 placed on the track in advance to realize re-railing of the rail vehicle.

In some embodiments, the third preferred alternative can also be used: when the bogie 7 and other equipment are disassembled, the lifting device 81 can be used at the end beam frame seat 5 to lift the low side of the rail vehicle, and If the bogie wheel pair at one end is not jacked up, a wheel stopper is installed in both directions. After lifting the rail vehicle to a balanced state, Then the lifting device 81 under the carriage part 21 is raised until it contacts the rerail carriage seat 2, and under the action of the traverse trolley 82, the rail vehicle is moved laterally, moved to the center of the track, and then dropped to the position placed on the track in advance. The bogie 7 on the vehicle realizes the re-railing of the rail vehicle.

Figure 10 is a schematic diagram of the rescue vehicle assisting in re-tracking. For the above alternative second or alternative three, when the bogie 7 and other equipment are disassembled, the rescue vehicle 9 can be used to perform rescue operations if the rescue space and equipment permit. That is, the support plate 92 of the rescue vehicle 9 is opened to stabilize the front end of the rescue vehicle 9, and a wheel stopper is installed bidirectionally on the bogie wheel pair at the end that is not to be jacked up. Use the fork 91 of the rescue vehicle 9 at the end beam frame seat 5 to lift the low side of the rail vehicle. After the rail vehicle is lifted to a balanced state, the moving mechanism 93 is used to move the rail vehicle laterally, move to the center of the track, and then drop to the bogie 7 placed on the track in advance to realize re-railing of the rail vehicle.

It should be understood that these embodiments are only used to illustrate the present invention more clearly and are not used to limit the scope of the present invention. After reading the present invention, those skilled in the art will understand various equivalents of the present embodiment. Modifications of the form fall within the scope of the appended claims of the present invention.

Claims

A rail vehicle body, including a car body upper structure (11) and a chassis (12) located directly below the car body upper structure (11); characterized in that,

The chassis (12) includes chassis side beams (121) on both sides, a traction beam (122), a bolster (123), a coupler mounting seat (124), and a traction beam located below the coupler mounting seat (124). The cover plate (125), the traction guide beam (126), the end beams (127) located at the front and rear ends, and the floor (128) located between the chassis side beam (121) and the end beam (127); the end beam (127) 127) is connected to the upper structure of the car body (11), and a bolster (123) parallel to the end beam (127) is provided between the two chassis side beams (121). Between the end beam (127) and the bolster (123) ), the traction guide beam (126), the coupler mounting seat (124), the traction beam cover (125) and the traction beam (122) are arranged in sequence;

The tractor beam cover (125) is a hollow profile structure.
The rail vehicle body according to claim 1, characterized in that the traction beam cover (125) includes: cover diagonal ribs (1251), first cover vertical ribs (1252), second cover vertical ribs ribs (1253) and cover plate transverse ribs (1254); the two ends of the first cover plate vertical ribs (1252) are respectively connected to the cover plate diagonal ribs (1251) and the cover plate transverse ribs (1254). Both ends of the second cover plate vertical rib (1253) are respectively connected to the cover plate oblique rib (1251) and the cover plate transverse rib (1254). The cover plate oblique rib (1251) and the first cover plate vertical rib (1252), the second cover plate vertical ribs (1253) and the cover plate transverse ribs (1254) enclose the molding cavity structure.
The rail vehicle body according to claim 1 or 2, characterized in that the coupler mounting seat (124) has a symmetrical structure, the middle part is a mounting panel (1242) for installing the coupler connector (6), and the two wings The location is a closed cavity (1241).
The rail vehicle body according to claim 3, characterized in that the projection of the closed cavity on the horizontal plane is triangular or pentagonal.
A rail vehicle rerailing frame system, including a rail vehicle body as claimed in any one of claims 1 to 4, a rerailing frame seat (2), a pillow inner frame seat (3), and a pillow outer frame. The carriage seat (4) and the end beam frame carriage (5) are located on the lower surface of the traction beam cover (125), and the pillow inner frame carriage (3) is located corresponding to the bolster (123). position or the lower surface of the chassis side beam (121) in the area between the front and rear pairs of bolsters (123), and the pillow outer frame seat (4) is located in the area between the end beam (127) and the bolster (123) The lower surface of the bottom frame side beam (121), and the end beam frame seat (5) is located on the lower surface of the end beam (127).
The rail vehicle rerailing system according to claim 5, characterized in that the upper structure of the vehicle body (11) is provided with a workshop passage door opening (11a) at the center of both ends. There are several passenger room door openings (11b) on the side; there are end wall columns (111) on both sides of the workshop passage door opening (11a), and there are door columns (112) on both sides of the passenger room door opening (11b); the end beam frame vehicle seat ( 5) It is not arranged in the workshop passage door opening (11a), and neither the pillow inner frame seat (3) nor the pillow outer frame seat (4) is arranged in the passenger room door opening (11b) area; more preferably, it is inside the pillow The frame seat (3), pillow outer frame seat (4) are aligned with the end wall column (111) and the door column (112).
The rail vehicle rerailing carriage system according to claim 5, characterized in that the rerailing carriage seat (2) is in an "n" shape, with the middle part being the carriage part (21) and the two wing parts being jacking parts. part (22); preferably, the carriage part (21) is located directly below the mounting panel (1242) of the coupler mounting seat (124), and the lifting part (22) is located in the closed cavity (1241) of the coupler mounting seat (124) directly below, and the surrounding area of the lifting portion (22) covers the area beyond the closed cavity (1241); preferably the coupler mounting seat (124) The outer side of the closed cavity (1241) is provided with an oval bolt installation process hole (124b), which is used to install the bolts fixed in the coupler installation hole (124a) on the installation panel (1242); the coupler installation hole (124a) It is located at the center of the closed cavity (1241) and is on the same straight line as the traction beam vertical reinforcement (1221) in the traction beam (122).
A method for carrying out rerailing and carriage using the rail vehicle rerailing and carriage system according to claim 7, characterized in that it includes the following steps:

S1. Install wheel stoppers in both directions on the bogie wheels that do not jack up the end of the rail vehicle;

S2. Arrange a set of lifting devices at the front and rear in the longitudinal direction under the rerail frame seat (2);

Use the first set of lifting devices on the two wing areas of the rerail frame seat (2) to lift the side that is tilted back to balance;

S3. Use the second set of jacking devices in the central area of the rerail frame seat (2) to jack up the car body to a certain height synchronously with the first set of jacking devices;

S4. Perform the traverse operation of the first set of jacking devices and the second set of jacking devices simultaneously and lower them to the rails.

Includes the following steps:
A method for carrying out rerailing by utilizing the rail vehicle rerailing system according to claim 7, characterized in that one of the following four schemes is adopted:

Option 1: When the bogie (7) is not disassembled and continues to be connected to the bolster (123), use a lifting machine (8) with a traverse function at the carriage seat (2) of the rerail frame to lift it, and at least There is a jacking device (81) fixed on the traverse trolley (82); the specific operation is: install wheel stoppers in both directions on the bogie wheel pair at one end of the rail vehicle that is not jacked up, and install the wheel stopper on the rerail frame seat (2) The lower part Use two rows of lifting devices (81). When lifting, first use a set of lifting devices (81) under the lifting part (22) of the rerail frame seat (2) on the low side of the rail vehicle to lift the rail. The vehicle is lifted to a balanced state, and then another set of jacking devices (81) under the carriage part (21) is raised until it contacts the rerail frame seat (2). The two lifting devices (81) simultaneously lift the vehicle The body jack is raised to a certain height, and the rail vehicle is moved laterally under the action of the traverse trolley (82), and moves to the center of the track to achieve re-railing;

Option 2: When the bogie (7) is not disassembled and continues to be connected to the bolster (123), use a set of lifting devices (81) at the seat (3) of the bolster inner frame to lift the low side of the rail vehicle. and install wheel stoppers in both directions on the bogie wheel pair at the non-jacking end of the rail vehicle. After lifting the rail vehicle to a balanced state, raise the lifting device (81) under the bogie part (21) to the level of The carriage seat (2) of the rerail frame comes into contact, and the two lifting devices (81) simultaneously lift the car body to a certain height. Under the action of the traversing trolley (82), the rail vehicle is moved laterally and moved to the center of the track to achieve re-railing. rail;

Option 3: When the bogie (7) is disassembled, use a set of lifting devices (81) at the pillow outer frame seat (4) to lift the low side of the rail vehicle, and lift the end of the rail vehicle that is not lifted. The bogie wheels are equipped with wheel stoppers in both directions. After the rail vehicle is lifted to a balanced state, the lifting device (81) under the bogie car part (21) is raised until it contacts the derailleur frame seat (2). The lifting device (81) synchronously lifts the car body to a certain height. Under the action of the traversing trolley (82), the rail vehicle moves laterally. When it moves to the center of the track, it drops to the bogie (7) placed on the track in advance. ) to achieve re-orbiting;

Option 4: When the bogie (7) is disassembled, use a set of jacks on the end beam frame seat (5) The device (81) jacks up the lower side of the rail vehicle, and installs wheel stoppers in both directions on the bogie wheel pairs at the non-lifted end of the rail vehicle. After the rail vehicle is lifted to a balanced state, the bogie part (21) is ) below the jacking device (81) rises to contact the rerail frame seat (2), and moves the rail vehicle laterally under the action of the traversing trolley (82). When it moves to the center of the track, it drops to the position previously placed on the track. The bogie (7) on the vehicle realizes re-orbiting.
The method for rerailing a bogie according to claim 9, characterized in that in the third or fourth scheme, when the bogie (7) is disassembled, the rescue vehicle (9) is used under the conditions allowed by the rescue space and equipment. ) to perform rescue operations; the specific steps are as follows:

Open the support plate (92) of the rescue vehicle (9) to stabilize the front end of the rescue vehicle (9), install wheel stoppers in both directions on the bogie wheel pair at the unjacked end of the rail vehicle, and install the wheel stopper on the end beam frame seat (5) Use the fork (91) of the rescue vehicle (9) to lift the low side of the rail vehicle. After the rail vehicle is lifted to a balanced state, the moving mechanism (93) is then used to move the rail vehicle laterally. When it moves to the center of the track Drop to the bogie (7) placed on the track in advance to achieve re-orbiting.