CN214028632U

CN214028632U - Lifting structure of bogie and bogie

Info

Publication number: CN214028632U
Application number: CN202022756801.4U
Authority: CN
Inventors: 魏家麒; 李贵宇; 曹晓宁; 曹国栋; 王大强
Original assignee: CRRC Qingdao Sifang Co Ltd
Current assignee: CRRC Qingdao Sifang Co Ltd
Priority date: 2020-11-24
Filing date: 2020-11-24
Publication date: 2021-08-24
Anticipated expiration: 2030-11-24

Abstract

The utility model discloses a structure is hung in carrying of bogie and has this structure is hung to carry bogie, the bogie includes framework and axle box body, carry to hang the structure including carrying the part of hanging and fixing the first spliced pole in the framework below, carry the part of hanging and include first connecting portion and the department of support that is used for keeping out the axle box body, the department of support is located axle box body below, the axle box body is equipped with the through-hole, the lower extreme of first spliced pole is equipped with the screw thread, form first screw thread portion, first connecting portion pass the through-hole and articulate in first screw thread portion. The lifting and hanging part of the lifting and hanging structure is mounted and dismounted at the bottom of the axle box body, so that the construction space is large, the operation is convenient, and the lifting and hanging structure is suitable for the axle box built-in bogie with limited construction space. The bogie has the interface of the lifting part and the pre-compression part inside the axle box spring, so that the bogie has compact structure and small volume.

Description

Lifting structure of bogie and bogie

Technical Field

The utility model relates to a rail vehicle technical field especially relates to a structure is hung and has this bogie of hanging structure is carried to lifting of bogie.

Background

The bogie is an important component of a railway vehicle and mainly plays a role in supporting a vehicle body and transferring load. The bogie comprises a framework, an axle box and a wheel pair, wherein the axle box comprises an axle box body and an axle box spring, the axle box body is sleeved on an axle, the axle box spring is vertically extended and installed between the framework and the axle box body, and the wheel pair and the framework are elastically connected through the axle box spring.

The bogie is divided into an axle box built-in bogie and an axle box external bogie according to different axle box installation positions. The axle box of the bogie with the built-in axle box is arranged on the inner side of the wheel, and the axle box of the bogie with the built-out axle box is arranged on the outer side of the wheel.

Since the wheelsets are resiliently connected to the frame by the axlebox springs, a lifting member is required to define the floating distance between the two. When the bogie is integrally lifted, the axle box floats downwards relative to the framework, and can be abutted against the lifting part after floating downwards for a certain distance, and under the abutting action of the lifting part, the axle box can not continuously float downwards, so that the bogie can be integrally lifted.

Conventionally, a lifting member is generally installed in a space between a vehicle body and a frame, but in a bogie having a built-in axle box type, since the space between the vehicle body and the frame is relatively small, it is inconvenient to install and remove the lifting member.

In view of this, it is a technical problem to be solved by those skilled in the art to design a lifting structure suitable for an axle box built-in bogie.

SUMMERY OF THE UTILITY MODEL

For solving the technical problem, the utility model provides a structure is hung in carrying of bogie, the bogie includes framework and axle box, it includes the lifting component and fixes to carry the structure the first spliced pole of framework below, the lifting component includes first connecting portion and is used for keeping out the department of keeping out of axle box, it is located to keep out the department axle box below, the axle box is equipped with the through-hole, the lower extreme of first spliced pole is equipped with the screw thread, forms first screw thread portion, first connecting portion pass the through-hole twist connect in first screw thread portion.

The lifting component of the lifting structure penetrates through the through hole in the axle box body and is screwed to the first connecting column below the framework, and therefore installation and disassembly of the lifting component are carried out at the bottom of the axle box body, construction space is large, operation is convenient, and the lifting structure is suitable for the axle box built-in bogie with limited construction space.

Optionally, the stopping part and the axle box body are vertically separated by a preset distance, and the preset distance is greater than the normal floating distance of the bogie.

Optionally, the first threaded portion is an internal threaded hole portion.

Optionally, the bogie further comprises an axle box spring disposed between the frame and the axle box body, the first connecting column extending into an interior of the axle box spring.

The utility model also provides a bogie, bogie is in including carrying hanging structure, framework, axle box body, setting the framework with axle box spring between the axle box body, a serial communication port, carry and hang the structure and be above-mentioned arbitrary the carrying and hanging structure.

Because the lifting structure has the technical effects, the bogie adopting the lifting structure also has the technical effects.

Optionally, the bogie further comprises an upper clamping plate and a lower clamping plate for compressing the journal box spring, a pre-compression part for pre-compressing the journal box spring and a second connecting column fixed below the upper clamping plate, wherein the lower end of the second connecting column is provided with threads to form a second threaded portion, the pre-compression part comprises a second connecting portion and a pressing portion for pressing the lower clamping plate, the second connecting portion penetrates through the through hole to be screwed on the second threaded portion, and the pressing portion upwards presses the lower clamping plate. With the arrangement, the installation and the disassembly of the pre-compression part can be carried out at the bottom of the axle box body, so that the construction space is large, and the operation is simple and convenient.

Optionally, the second connecting post is of unitary construction with the upper clamping plate.

Optionally, the second connecting column extends into the axle box spring, the second connecting column is provided with an inner cavity, and the first connecting column extends into the inner cavity of the second connecting column. With this arrangement, the compactness of the bogie can be further improved.

Optionally, the first threaded portion and the second threaded portion are both female threaded hole portions.

Optionally, the first threaded portion is located above the second threaded portion, the inner diameter of the first threaded portion is smaller than that of the second threaded portion, and the first connection portion passes through the second threaded portion

Drawings

Fig. 1 is a schematic view of a bogie provided by the present invention.

Fig. 2 is a schematic view of the bogie in the process of assembly.

The reference numerals are explained below:

1, a framework, 11 a spring top seat, 12 a first connecting column and 13 a first threaded part;

2-axis box body, 21 sleeve joint part, 22 spring base and 221 through hole;

3 axle box springs;

4 lifting component, 41 first connecting part, 42 resisting part;

5, an upper clamping plate, 51 a second connecting column and 52 a second threaded part;

6, a lower splint;

7 precompression means, 71 second connecting part, 72 press.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the following provides a detailed description of the technical solution of the present invention with reference to the accompanying drawings.

As shown in fig. 1, the bogie includes a frame 1, an axle housing 2, an axle box spring 3, an upper clamp 5, a lower clamp 6, a wheel set (not shown), a lifting structure, and the like.

The frame 1 is formed with a spring top 11 thereunder. The axle box body 2 comprises a main body 21, the main body 21 is sleeved on an axle, and the axle box body further comprises a spring base 22 which is integrally arranged with the main body 21. The axle box spring 3 is installed between spring footstock 11 and spring foundation 22, and the punch holder 5 is installed in spring footstock 11 below, and the lower plate 6 is installed in spring foundation 22 top, and punch holder 5 and the cooperation of lower plate 6 press the axle box spring 3, make axle box spring 3 be in compression state. The spring base 22 is provided with a through hole 221 which penetrates up and down.

The lifting structure comprises a first connecting post 12. The first connecting column 12 is fixed below the spring top seat 11, and may be welded and fixed. The lower end of the first connecting post 12 is threaded to form a first threaded portion 13.

The lifting structure further comprises a lifting member 4, the lifting member 4 comprising a first connecting portion 41 for connection and a resisting portion 42 for resisting the spring base 22. The upper end of the first connecting portion 41 is provided with a screw thread adapted to the first screw portion 13. The first connecting portion 41 is screwed to the first threaded portion 13 through the through hole 221, and the stopping portion 42 is located below the spring seat 22. When the bogie is lifted, the abutment 42 will abut against the bottom of the spring seat 22, thereby enabling the whole bogie to be lifted.

The lifting part 4 of the lifting structure passes through the through hole 221 on the axle box body 2 and is screwed with the first connecting column 12 below the framework 1, so that the installation and the disassembly of the lifting part 4 are carried out at the bottom of the axle box body 2, therefore, the construction space is large, the operation is convenient, and the lifting structure is suitable for the axle box built-in bogie with limited construction space.

It should be noted that, in practical implementation, the lifting structure can be used for an axle box built-in bogie or an axle box external bogie. In other words, the bogie in the scheme can be an axle box built-in bogie or an axle box external bogie.

In a particular embodiment, the first connecting column 12 extends inside the axle box spring 3. Since the first connecting column 12 extends into the axle box spring 3, the interface (i.e. the first threaded portion 13) for connecting the lifting member 4 is formed inside the axle box spring 3, whereas in the prior art, the interfaces for connecting the lifting member 4 are all arranged outside the axle box spring 3, so that the compactness of the bogie is improved in comparison with the prior art.

In a specific embodiment, the first connecting portion 41 is in a rod shape, and the abutting portion 42 is in a plate shape, and in practical implementation, the structures of the first connecting portion 41 and the abutting portion 42 are not limited to this, as long as the structures can achieve the connecting and abutting functions.

In a specific scheme, the first threaded portion 13 is an internal threaded hole portion, and the upper end of the first connecting portion 41 is provided with an external thread, so that the strength of the first connecting portion 41 can be ensured by setting the first connecting portion to be thin, and the diameter of the corresponding through hole 221 does not need to be too large, so that the strength of the axle box body 2 is also ensured easily. Of course, in actual practice, the first screw portion 13 may be a male screw end portion, and in this case, a female screw may be provided at the upper end of the first connecting portion 41.

In a specific embodiment, the stopping portion 42 is vertically spaced from the spring seat 22 by a predetermined distance, and the predetermined distance is greater than the normal floating distance of the bogie. Thus, when the axle box floats in the normal range, it does not interfere with the stopper 42, and therefore, the running noise can be reduced. When the axle box floating distance exceeds the normal range, the axle box will collide with the resisting part 42, and the axle box can not continuously float downwards under the collision action of the resisting part 42, thereby avoiding the problem that the axle box spring 3 is excessively stretched due to the overlarge floating distance of the axle box. In short, the abutment 42 acts as a vertical stop for the axle box.

When assembling the bogie, the mounting of the axlebox springs 3 is usually assisted by means of pre-compressed components. The precompressed components are typically pressed up against the bottom clamp 6 to ensure that the pedestal spring 3 remains stable during assembly, and to keep the pedestal spring 3 at the same height, spacers are added between some of the top clamps 5 and the frame 1, and the precompressed components are typically pulled down against the top clamps 5 to ensure that the top clamps 5 do not move upward when the frame 1 is lifted upward, thereby ensuring that a gap can exist between the top clamps 5 and the frame 1 for the spacers to be installed.

As shown in fig. 1, the precompression unit 7 includes a second connecting portion 71 and a pressing portion 72. The second connecting pole 51 is fixed below the upper clamp plate 5, and specifically, the second connecting pole 51 can be integrally formed with the upper clamp plate 5. The lower end of the second connecting post 51 is threaded to form a second threaded portion 52. The lower clamping plate 6 is provided with a through hole, the upper end of the second connecting portion 71 is provided with a thread matched with the second thread portion 52, and the second connecting portion 71 sequentially penetrates through the through hole 221 and the through hole to be screwed on the second thread portion 52. The pressing portion 72 is located below the lower clamp 6 and presses the lower clamp 6 upward.

The bogie has the pre-compression part 7 screwed to the second connecting column 51 below the upper clamping plate 5 through the through hole 221 in the axle box body 2 and the through hole in the lower clamping plate 6, so that the pre-compression part 7 is installed and disassembled at the bottom of the axle box body 2, and thus, the bogie has large construction space and convenient operation. Moreover, the precompression member 7 can perform the action of pressing against the lower clamp plate 6 and pulling the upper clamp plate 5 downward, thereby assisting the assembly of the truck.

In a specific scheme, the second connecting column 51 extends into the journal box spring 3, the second connecting column 51 is provided with an inner cavity, and the first connecting column 12 extends into the inner cavity of the second connecting column 51. With this arrangement, the compactness of the bogie can be further improved.

In a specific scheme, the second thread part 52 is an internal thread hole part, and the upper end of the second connecting part 71 is provided with an external thread, so that the strength of the second connecting part 71 can be ensured by being thin, and correspondingly, the diameters of the through hole 221 and the through hole do not need to be too large, so that the strength of the axle box body 2 and the strength of the lower clamping plate 6 are also ensured easily. Of course, in actual practice, the second screw portion 52 may be a male screw end portion, and in this case, the upper end of the second connection portion 71 may be provided with a female screw.

In a specific embodiment, the first threaded portion 13 is located above the second threaded portion 52, an inner diameter of the first threaded portion 13 is smaller than an inner diameter of the second threaded portion 52, the second threaded portion 52 penetrates through the inner cavity, and the first connecting portion 41 is screwed to the first threaded portion 13 through the second threaded portion 52.

In a specific scheme, the lower end of the second connecting column 51 is a tapered end with a large upper part and a small lower part, so that the phenomenon of stress concentration caused by the sudden change of the wall thickness of the second connecting column 51 can be avoided.

In conclusion, the lifting structure of the bogie provided by the scheme can be used for mounting and dismounting the lifting component 4 at the bottom of the axle box body 2, so that the construction space is large and the operation is convenient. The bogie that this scheme provided can carry out installation and the dismantlement of precompression part 7 in the bottom of axle box body 2, therefore the construction space is big, convenient operation, and moreover, this bogie has set up the interface of lifting and hanging part 4 and precompression part 7 inside journal box spring 3, therefore compact structure, small.

It is right above that the utility model provides a structure and bogie are carried out the detailed introduction to carry of bogie. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims

1. The lifting structure of the bogie comprises a framework (1) and a shaft box body (2), and is characterized in that the lifting structure comprises a lifting part (4) and a first connecting column (12) fixed below the framework (1), threads are arranged at the lower end of the first connecting column (12) to form a first thread part (13), the lifting part (4) comprises a first connecting part (41) and a resisting part (42) used for resisting the shaft box body (2), the resisting part (42) is located below the shaft box body (2), the shaft box body (2) is provided with a through hole (221), and the first connecting part (41) penetrates through the through hole (221) to be screwed in the first thread part (13).

2. The lifting structure of a bogie according to claim 1 wherein the abutment (42) is vertically spaced from the axle housing (2) by a predetermined distance which is greater than the normal roll-off distance of the bogie.

3. A lifting structure of a bogie as claimed in claim 1, characterised in that the first threaded portion (13) is an internally threaded bore portion.

4. A lifting structure for a bogie according to any one of claims 1-3, characterised in that the bogie further comprises an axle box spring (3) arranged between the frame (1) and the axle box (2), the first connecting column (12) extending inside the axle box spring (3).

5. A bogie comprising a lifting structure, a frame (1), an axle housing (2), and a box spring (3) arranged between the frame (1) and the axle housing (2), characterized in that the lifting structure is according to any of claims 1-4.

6. The bogie according to claim 5, further comprising an upper clamping plate (5) and a lower clamping plate (6) for compressing the journal box spring (3), a pre-compression part (7) for pre-compressing the journal box spring (3), and a second connecting post (51) fixed below the upper clamping plate (5), wherein the lower end of the second connecting post (51) is threaded to form a second threaded portion (52), the pre-compression part (7) comprises a second connecting portion (71) and a pressing portion (72) for pressing against the lower clamping plate (6), the second connecting portion (71) passes through the through hole (221) and is screwed on the second threaded portion (52), and the pressing portion (72) presses the lower clamping plate (6) upwards.

7. A bogie as claimed in claim 6, characterised in that the second connecting column (51) is of unitary construction with the upper clamp plate (5).

8. A bogie as claimed in any one of claims 6 to 7, characterised in that the second connecting column (51) extends into the interior of the axlebox spring (3), the second connecting column (51) being provided with an inner cavity, the first connecting column (12) extending into the inner cavity of the second connecting column (51).

9. A bogie as claimed in claim 8 in which the first threaded portion (13) and the second threaded portion (52) are each internally threaded bore portions.

10. The bogie according to claim 9, wherein the first threaded portion (13) is located above the second threaded portion (52), the first threaded portion (13) having an inner diameter smaller than an inner diameter of the second threaded portion (52), and the first connecting portion (41) passes through the second threaded portion (52).