CN113830113B

CN113830113B - Elastic suspension mounting structure for lower heavy equipment of railway vehicle

Info

Publication number: CN113830113B
Application number: CN202111317415.8A
Authority: CN
Inventors: 张坤; 梁海林; 孟令锋; 王永
Original assignee: CRRC Zhuzhou Locomotive Co Ltd
Current assignee: CRRC Zhuzhou Locomotive Co Ltd
Priority date: 2021-11-09
Filing date: 2021-11-09
Publication date: 2023-05-02
Anticipated expiration: 2041-11-09
Also published as: WO2023082673A1; CN113830113A

Abstract

The invention discloses an elastic suspension mounting structure of lower heavy equipment of a railway vehicle, which comprises a suspension seat mounted at the lower end of an edge beam of a chassis, wherein a mounting shaft capable of being supported on the suspension seat is arranged on the equipment; the bottom plate is detachably provided with a damper, the damper is provided with a first hole corresponding to the through hole on the inner vertical plate, and the mounting shaft penetrates through the through hole and is inserted into the first hole. The suspension installation structure has strong bearing capacity, can ensure the reliability of suspension installation of heavy equipment, and is convenient to maintain.

Description

Elastic suspension mounting structure for lower heavy equipment of railway vehicle

Technical Field

The invention belongs to the technical field of railway vehicles, and particularly relates to an elastic suspension mounting structure of lower heavy equipment of a railway vehicle.

Background

The lower heavy equipment of the railway vehicle is generally transversely arranged on the side beams of the underframe at two sides of the underframe of the vehicle body through a suspension structure, such as equipment which weighs several tons, such as a transformer, a power pack and the like and is provided with a vibration source. When the rail vehicle runs at a high speed, the vehicle body can generate severe vibration due to unsmooth input of the rail and interaction force of the wheel rail, so that not only is the riding comfort of passengers influenced, but also the equipment is easy to resonate with the vehicle body, and the reliability of suspension installation cannot be ensured due to aggravation of vibration.

Chinese patent application CN112078621 discloses a primary suspension device for a bogie for a railway vehicle, which uses a suspension seat to support the weight of equipment in cooperation with a steel cable, and for heavy equipment, the suspension device has insufficient bearing capacity to support heavy equipment weighing several tons, and cannot reliably suspend the heavy equipment. As another example, chinese patent No. CN104097653 discloses a lower device mounting structure for a rail vehicle and a chassis for a rail vehicle, which include a vibration damping mechanism and a stopper for limiting horizontal movement of the device, so as to reduce vibration transmission and resonance between the device and a vehicle body, but the mounting structure adopts two suspension plates to support the device disposed on the support plate in a matched manner, and when heavy equipment is suspended, the mounting structure still faces the risk of opening due to excessive pressure.

Disclosure of Invention

The invention aims to provide an elastic suspension mounting structure for heavy equipment under a railway vehicle, which aims to solve the technical problem that the suspension mounting structure for the heavy equipment has potential safety hazards.

In order to solve the technical problems, the invention adopts the following specific technical scheme:

the elastic suspension mounting structure for the lower heavy equipment of the railway vehicle comprises a suspension seat mounted at the lower end of an edge beam of a chassis, wherein the equipment is provided with a mounting shaft capable of being supported on the suspension seat, the suspension seat comprises a top plate, a bottom plate, an inner side vertical plate and an outer side vertical plate, the inner side vertical plate and the outer side vertical plate are connected with the top plate and the bottom plate and are oppositely arranged, the top plate is fixedly connected with the edge beam of the chassis, and a through hole for the mounting shaft to pass through is formed in the inner side vertical plate; the bottom plate is detachably provided with a damper, the damper is provided with a first hole corresponding to the through hole on the inner vertical plate, and the mounting shaft penetrates through the through hole and is inserted into the first hole.

In the scheme, the shock absorber is arranged on the bottom plate of the hanging seat, and the hanging seat can bear the weight of heavy equipment, so that the hanging safety of the heavy equipment is ensured. The vibration absorber absorbs the vertical vibration and reduces the impact of the vibration on the suspension mounting structure. The scheme effectively improves the reliability of equipment hanging installation as a whole.

Further, the top plate, the bottom plate, the inner side vertical plate and the outer side vertical plate which are connected with the top plate and the bottom plate and are oppositely arranged are of an integrated structure. The hanging seat adopts an integrated structure, so that the risk of opening the lower end of the hanging seat due to overload bearing can be avoided, and the reliability of equipment hanging is further improved.

Further, the hanging installation structure further comprises an anti-falling seat, and a second hole for the anti-falling shaft arranged on the equipment to extend in is formed in the anti-falling seat; the anti-drop seat is fixedly connected to the lower end of the side beam of the underframe, and the anti-drop seat is arranged between the two hanging seats. The special anti-drop device is arranged to provide double protection for heavy equipment hung under the railway vehicle, so that the safety of equipment installation hanging is further ensured.

Further, a plurality of longitudinal stops are oppositely arranged on the surface of the second hole along the longitudinal direction, so that longitudinal elastic buffering vibration reduction is realized, and longitudinal vibration generated by equipment during train running is absorbed.

Preferably, each of the longitudinal stops includes a longitudinal vibration damping mount and a longitudinal vibration damping pad disposed on the longitudinal vibration damping mount, the longitudinal vibration damping mount being fixedly connected with the second hole.

Further, the suspension mounting structure further comprises a plurality of lateral stops, each of the lateral stop assemblies being disposed between a longitudinal side of the apparatus and an inner side of the chassis boundary beam; each transverse stop comprises a transverse vibration reduction mounting seat and a transverse vibration reduction pad arranged on the transverse vibration reduction mounting seat, and the transverse vibration reduction mounting seat is fixedly connected to equipment or an underframe boundary beam. The longitudinal side of the device is matched with the inner side surface of the side beam of the underframe, so that the transverse elastic buffering vibration reduction is realized.

Furthermore, hang seat and chassis boundary beam detachably fixed connection, pull down and hang the seat and can maintain relevant part, need not whole equipment of tearing down, maintenance efficiency is high.

The invention has the following advantages:

1. the shock absorber is arranged on the bottom plate of the hanging seat, the bearing capacity is high, the hanging seat is of an integrated structure, the risk that the lower end of the hanging seat is opened due to overload bearing is avoided, and the safety of equipment hanging is integrally guaranteed through the installation structure. In addition, the invention is provided with a special anti-drop structure, thereby further ensuring the safety of equipment installation hanging.

2. According to the elastic suspension structure, vertical vibration reduction is realized through the vibration absorber, transverse elastic buffer vibration reduction is realized through the transverse stop, longitudinal elastic buffer vibration reduction is realized through the longitudinal stop, vibration reduction capability is realized in three directions of a train, vibration of equipment during running of the train can be effectively absorbed, vibration of heavy equipment can be prevented from being transmitted into the train, and the comfort in the passenger room of the train is improved.

3. The elastic suspension structure can be suitable for large equipment installation with different structural sizes and different weights, and only proper shock absorbers are needed to be selected according to the weight of the equipment, so that the elastic suspension structure can be in modularized design. Meanwhile, a certain suspension seat can be detached independently, the shock absorber can be replaced under the condition that equipment is not detached integrally, and maintenance efficiency is improved.

Drawings

FIG. 1 is a schematic view of the equipment suspension installation of the present embodiment;

fig. 2 is a schematic view of an elastic suspension mounting structure of the under-car heavy equipment of the railway vehicle of the present embodiment;

fig. 3 is a schematic view of the installation structure of the suspension base of the present embodiment;

fig. 4 is a schematic view of an installation structure of the anti-drop seat according to the present embodiment;

the figure indicates: 1. an underframe side beam; 2. a hanging seat; 21. a top plate; 22. a bottom plate; 23. an inner vertical plate; 231. a through hole; 24. an outer vertical plate; 3. an apparatus; 4. a mounting shaft; 5. a damper; 51. a first hole; 6. an anti-drop seat; 61. a second hole; 7. an anti-drop shaft; 8. a longitudinal stop; 81. a longitudinal vibration reduction mounting seat; 82. a longitudinal vibration damping pad; 9. a lateral stop; 91. a transverse vibration reduction mounting seat; 92. a transverse vibration damping pad; 10. a left chamber; 11. a right chamber; 12. a screw block; 13. and (5) locking the thread.

Detailed Description

For a better understanding of the objects, structures and functions of the present invention, a further detailed description of an elastic suspension mounting structure for under-car heavy equipment of a railway vehicle according to the present invention will be provided with reference to the accompanying drawings.

As shown in fig. 1 and 2, the suspension installation structure of the lower heavy equipment 3 of the railway vehicle in this embodiment includes a suspension seat 2 and an anti-drop seat 6 fixedly installed at the lower end of a side sill 1 of a chassis, and a damper 5 is disposed in the suspension seat 2, where the damper 5 can realize vertical buffering and vibration damping. The device 3 is provided with a stepped mounting shaft 4, the mounting shaft 4 penetrates into a first hole 51 on the damper 5, and the first hole 51 supports the mounting shaft 4, so that the device 3 is borne. The chassis boundary beam 1 is of a double-cavity closed structure, and the hanging seat 2 is hung at the lower part of the vehicle boundary beam cavity through a fastener, so that the hoisting of the equipment 3 is realized. In order to enhance the safety of the suspension structure, the suspension structure is provided with a special anti-drop seat 6, and the anti-drop shaft 7 arranged on the equipment 3 extends into the second hole 61 of the anti-drop seat 6, so that the reliability of the suspension installation of the equipment 3 is greatly enhanced. When the hanging seat 2 cannot bear the equipment 3 to cause falling off of the equipment 3, the second hole 61 can prevent falling off and lifting, so that the protection effect on the equipment 3 is realized, and the hanging installation structure is safe and reliable. A transverse stop 9 is arranged between the device 3 and the chassis boundary beam 1, and a longitudinal stop 8 is arranged between the anti-drop shaft 7 of the device 3 and the second hole 61, so that elastic buffering vibration reduction in the transverse direction and the longitudinal direction can be realized. The shock absorber 5, the transverse stop 9 and the longitudinal stop 8 are used for buffering and damping in three directions, so that vibration of the device 3 during running of the train can be effectively absorbed.

As shown in fig. 1, 2 and 3, the suspension base 2 includes a top plate 21, a bottom plate 22, and an inner side vertical plate 23 and an outer side vertical plate 24 which are disposed opposite to each other and connect the top plate 21 and the bottom plate 22, and the top plate 21 of the suspension base 2 is fixedly connected to the lower end of the chassis boundary beam 1 by a fastener. The lower end of the chassis boundary beam 1 is provided with a left cavity 10 and a right cavity 11, the inner surface of the lower end of the left cavity 10 and the inner surface of the lower end of the right cavity 11 corresponding to the installation position of the hanging seat 2 are provided with threaded blocks 12, and the threaded blocks 12 are provided with threaded holes for being matched with fasteners to fixedly connect the hanging seat 2 to the lower end of the chassis boundary beam 1. The screw blocks 12 are fixed on the inner surfaces of the lower ends of the left chamber 10 and the right chamber 11, so that the suspension seat 2 can be fixedly installed. A locking wire 13 is arranged between the fastener penetrating into the left chamber 10 and the adjacent fastener penetrating into the right chamber 11, so that the loosening performance is enhanced. The damper 5 is fixedly installed on the bottom plate 22 of the suspension seat 2, a first hole 51 is formed in the damper 5, a through hole 231 corresponding to the first hole 51 of the damper 5 is formed in the inner vertical plate 23 of the suspension seat 2, the installation shaft 4 arranged on the equipment 3 penetrates through the through hole 231 in the inner vertical plate 23 and is inserted into the first hole 51 of the damper 5, and the free end of the installation shaft 4 is fixed on the damper 5 through a baffle plate and a fastener. The device 3 is provided with the transverse stop 9, the transverse stop 9 comprises a transverse vibration reduction pad 92 and a transverse vibration reduction mounting seat 91, the transverse vibration reduction mounting seat 91 is fixedly connected to the device 3, and when transverse vibration is generated, the transverse vibration reduction pad 92 is in contact with the inner side surface of the chassis boundary beam 1, so that the transverse vibration generated in the vehicle moving process is effectively absorbed. It should be noted that, the inner side vertical plate 23 and the outer side vertical plate 24 of the suspension seat 2 are symmetrically arranged, and the outer side vertical plate 24 of the suspension seat 2 may also be provided with a through hole 231 corresponding to the first hole 51 on the damper 5, so as to enhance the universality of the suspension seat 2 and facilitate suspension installation.

As shown in fig. 1 and fig. 4, the anti-falling seat 6 is disposed between the two hanging seats 2, the anti-falling shaft 7 disposed on the device 3 extends into the second hole 61, the anti-falling shaft 7 is not in direct contact with the second hole 61, and when the device 3 falls off, the anti-falling seat 6 supports the anti-falling shaft 7 on the device 3, so as to play a role in double protection. A longitudinal stopper 8 is disposed on the surface of the second hole 61 oppositely in the longitudinal direction, the longitudinal stopper 8 includes a longitudinal vibration damping mount 81 and a longitudinal vibration damping pad 82, the longitudinal vibration damping mount 81 is mounted on the surface of the second hole 61, and the longitudinal vibration damping pad 82 is mounted on the longitudinal vibration damping mount 81 to absorb longitudinal vibration generated when the train is running.

It will be understood that the invention has been described by way of example only, and that various changes in the features and examples may be made, or equivalents may be substituted, by way of illustration, without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims

1. The utility model provides a heavy equipment elasticity hangs mounting structure under rail vehicle car, includes and installs suspension seat (2) at chassis boundary beam (1) lower extreme, be equipped with on equipment (3) and hold in the palm installation axle (4) of dress on suspension seat (2), its characterized in that: the anti-falling seat (6) is also included;

the hanging seat (2) comprises a top plate (21), a bottom plate (22), and an inner side vertical plate (23) and an outer side vertical plate (24) which are oppositely arranged and are connected with the top plate (21) and the bottom plate (22), the top plate (21) is fixedly connected with the chassis boundary beam (1), and a through hole (231) for a mounting shaft (4) to pass through is formed in the inner side vertical plate (23);

the base plate (22) is detachably provided with a damper (5), the damper (5) is provided with a first hole (51) corresponding to the through hole (231) in the inner vertical plate (23), and the mounting shaft (4) passes through the through hole (231) and is inserted into the first hole (51);

the anti-drop seat (6) is provided with a second hole (61) for the anti-drop shaft (7) arranged on the equipment (3) to extend into, and the anti-drop shaft (7) is not in direct contact with the second hole (61); the anti-drop seat (6) is fixedly connected to the lower end of the chassis boundary beam (1), and the anti-drop seat (6) is positioned between the two hanging seats (2).

2. The under-car heavy equipment elastic suspension mounting structure of a railway vehicle as claimed in claim 1, wherein: the top plate (21), the bottom plate (22) and the inner side vertical plate (23) and the outer side vertical plate (24) which are arranged opposite to each other and are connected with the top plate (21) and the bottom plate (22) are of an integrated structure.

3. The under-car heavy equipment elastic suspension mounting structure of a railway vehicle as claimed in claim 1, wherein: a plurality of longitudinal stops (8) are oppositely arranged on the surface of the second hole (61) along the longitudinal direction.

4. The under-car heavy equipment elastic suspension mounting structure of a railway vehicle as claimed in claim 3, wherein: each longitudinal stop (8) comprises a longitudinal vibration reduction mounting seat (81) and a longitudinal vibration reduction pad (82) arranged on the longitudinal vibration reduction mounting seat (81), and the longitudinal vibration reduction mounting seat (81) is fixedly connected with the second hole (61).

5. The rail vehicle underbody heavy equipment elastic suspension mounting structure as defined in any one of claims 1-4, wherein: the device also comprises a plurality of transverse stops (9), wherein each transverse stop (9) is arranged between the longitudinal side surface of the device (3) and the inner side surface of the chassis boundary beam (1); each transverse stop (9) comprises a transverse vibration reduction mounting seat (91) and a transverse vibration reduction pad (92) arranged on the transverse vibration reduction mounting seat (91), and the transverse vibration reduction mounting seat (91) is fixedly connected to the equipment (3) or the underframe boundary beam (1).

6. The under-car heavy equipment elastic suspension mounting structure of a railway vehicle as claimed in claim 1, wherein: the hanging seat (2) is detachably connected with the underframe boundary beam (1).