CN113830113A

CN113830113A - Elastic suspension mounting structure for lower heavy equipment of railway vehicle

Info

Publication number: CN113830113A
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: 2021-12-24
Anticipated expiration: 2041-11-09
Also published as: CN113830113B; WO2023082673A1

Abstract

The invention discloses an elastic suspension mounting structure of heavy equipment under a rail vehicle, which comprises a suspension seat mounted at the lower end of a boundary beam of an underframe, wherein the equipment is provided with a mounting shaft which can be supported on the suspension seat; the bottom plate is detachably provided with a shock absorber, the shock absorber is provided with a first hole corresponding to the through hole in the inner vertical plate, and the mounting shaft penetrates through the through hole and is inserted in the first hole. The suspension mounting structure has strong bearing capacity, can ensure the reliability of suspension mounting 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 for heavy equipment under a railway vehicle.

Background

Heavy equipment under a rail vehicle is generally transversely installed on chassis boundary beams on two sides of a vehicle body chassis through a suspension structure, such as equipment with a vibration source and a transformer, a power pack and the like which can weigh several tons. When rail vehicle moves at a high speed, the vehicle body can generate violent vibration due to the unsmooth input of the rail and the interaction force of the wheel rail, so that the comfort of passengers during riding is influenced, the equipment is easy to resonate with the vehicle body, and the reliability of suspension installation can not be ensured due to the aggravation of vibration.

The Chinese patent application CN112078621 discloses a bogie primary suspension device for a railway vehicle, which adopts a suspension seat and a steel cable to cooperate with each other to bear the weight of equipment, and for heavy equipment, the bearing capacity of the suspension device is not enough to support the heavy equipment with the weight of several tons, so that the heavy equipment cannot be reliably suspended. For another example, chinese patent CN104097653 discloses an under-car equipment mounting structure of a rail car and a rail car chassis, which include a vibration damping mechanism and a stopper for limiting horizontal movement of the equipment, thereby reducing vibration transmission and resonance between the equipment and a car body.

Disclosure of Invention

The invention aims to provide an elastic suspension mounting structure for heavy equipment under a rail vehicle, which aims to solve the technical problem of potential safety hazard of the suspension mounting structure for the heavy equipment.

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

an elastic suspension mounting structure of heavy equipment under a rail vehicle comprises a suspension seat mounted at the lower end of a side beam of an underframe, wherein the equipment is provided with a mounting shaft which can be supported on the suspension seat; the bottom plate is detachably provided with a shock absorber, the shock absorber is provided with a first hole corresponding to the through hole in the inner vertical plate, and the mounting shaft penetrates through the through hole and is inserted in the first hole.

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

Furthermore, the top plate, the bottom plate, and the inner vertical plate and the outer vertical plate which are connected with the top plate and the bottom plate and are oppositely arranged are of an integrated structure. The suspension seat is of an integrated structure, the risk that the lower end of the suspension seat is opened due to overweight bearing is avoided, and the reliability of suspension of the equipment is further improved.

Furthermore, the suspension mounting structure also comprises an anti-drop seat, wherein the anti-drop seat is provided with a second hole for an anti-drop shaft arranged on the equipment to extend into; the anti-drop seat is fixedly connected to the lower end of the side beam of the underframe, and the anti-drop seat is located between the two suspension seats. Set up special anticreep device, provide duplicate protection for the heavy equipment that hangs under the rail vehicle, further guaranteed the security that equipment fixing hung.

Furthermore, 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 longitudinal stop comprises a longitudinal vibration damping mounting seat and a longitudinal vibration damping pad arranged on the longitudinal vibration damping mounting seat, and the longitudinal vibration damping mounting seat is fixedly connected with the second hole.

Furthermore, the suspension mounting structure also comprises a plurality of transverse stopping components, and each transverse stopping component is arranged between the longitudinal side surface of the equipment and the inner side surface of the side beam of the underframe; each transverse stopping block 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 seats are fixedly connected to equipment or an underframe boundary beam. And the longitudinal side part of the equipment and the inner side surface of the edge beam of the underframe form stop matching, so that transverse elastic buffering and vibration reduction are realized.

Furthermore, the suspension seat is detachably and fixedly connected with the side beam of the underframe, and the related parts can be maintained by detaching the suspension seat without integrally detaching the equipment, so that the maintenance efficiency is high.

The invention has the following advantages:

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

2. The elastic suspension structure realizes vertical vibration reduction through the vibration absorber, realizes transverse elastic buffering vibration reduction through the transverse stop, realizes longitudinal elastic buffering vibration reduction through the longitudinal stop, has vibration reduction capability in three directions of a train, can effectively absorb the vibration of equipment during the operation of the train, can prevent the vibration of heavy equipment from being transmitted into the train, and improves the internal comfort of a passenger room of the train.

3. The elastic suspension structure can be suitable for mounting large equipment with different structural sizes and different weights, and can be designed in a modularized mode only by selecting a proper shock absorber according to the weight of the equipment. Meanwhile, a certain suspension seat can be detached independently and the shock absorber can be taken out, so that the shock absorber can be replaced under the condition that the equipment is not detached integrally, and the maintenance efficiency is improved.

Drawings

FIG. 1 is a schematic view of the apparatus of this embodiment mounted in a suspended manner;

FIG. 2 is a schematic view of the elastic suspension mounting structure of the heavy equipment under the rail vehicle of the embodiment;

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

FIG. 4 is a schematic view of an installation structure of the anti-separation seat of the present embodiment;

the notation in the figure is: 1. an underframe edge beam; 2. a suspension seat; 21. a top plate; 22. a base plate; 23. an inner vertical plate; 231. a through hole; 24. an outer vertical plate; 3. equipment; 4. installing a shaft; 5. a shock absorber; 51. a first hole; 6. an anti-drop seat; 61. a second hole; 7. the shaft is prevented from falling off; 8. a longitudinal stop; 81. a longitudinal vibration reduction mounting seat; 82. a longitudinal vibration damping pad; 9. a transverse stop; 91. a transverse vibration reduction mounting seat; 92. a transverse vibration damping pad; 10. a left chamber; 11. a right chamber; 12. a thread block; 13. the anti-loosening silk.

Detailed Description

For better understanding of the objects, structure and functions of the present invention, a resilient suspension mounting structure for heavy equipment under a rail vehicle according to the present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1 and fig. 2, the suspension mounting structure of the heavy equipment 3 under the rail vehicle of the embodiment includes a suspension seat 2 and an anti-drop seat 6 fixedly mounted at the lower end of the underframe boundary beam 1, a damper 5 is arranged in the suspension seat 2, and the damper 5 can realize vertical buffer damping. A stepped mounting shaft 4 is arranged on the device 3, the mounting shaft 4 penetrates into a first hole 51 in the damper 5, and the mounting shaft 4 is supported by the first hole 51, so that the device 3 is supported. The chassis boundary beam 1 is of a double-cavity closed structure, and the suspension seat 2 is suspended at the lower part of the body boundary beam cavity through a fastener, so that the equipment 3 is hoisted. In order to strengthen the safety of the suspension structure, the suspension structure is provided with a special anti-falling seat 6, and an anti-falling shaft 7 arranged on the equipment 3 extends into a second hole 61 of the anti-falling seat 6, so that the reliability of the suspension installation of the equipment 3 is greatly strengthened. When hanging seat 2 and can't bear equipment 3 and lead to equipment 3 to take off and weigh down, the effect that second hole 61 can anticreep hoist and mount realizes the guard action to equipment 3 for hang mounting structure safe and reliable. Set up horizontal backstop 9 between equipment 3 and chassis boundary beam 1, set up vertical backstop 8 between anticreep axle 7 and second hole 61 of equipment 3, can realize horizontal and vertical elasticity buffering damping. The shock absorber 5, the transverse stop 9 and the longitudinal stop 8 buffer and absorb shock in three directions, and can effectively absorb the shock of the equipment 3 during train operation.

As shown in fig. 1, 2 and 3, the hanging seat 2 includes a top plate 21, a bottom plate 22, and an inner vertical plate 23 and an outer vertical plate 24 which connect the top plate 21 and the bottom plate 22 and are disposed oppositely, and the top plate 21 of the hanging seat 2 is fixedly connected to the lower end of the underframe edge beam 1 through a fastener. The lower end of the underframe 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 corresponding to the installation position of the suspension seat 2 and the inner surface of the lower end of the right cavity 11 are provided with threaded blocks 12, and the threaded blocks 12 are provided with threaded holes for being matched with a fastener to fixedly connect the suspension seat 2 to the lower end of the underframe boundary beam 1. The thread 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 conveniently and fixedly installed. An anti-loosening thread 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 bottom plate 22 of the suspension seat 2 is fixedly provided with a shock absorber 5, the shock absorber 5 is provided with a first hole 51, the inner vertical plate 23 of the suspension seat 2 is provided with a through hole 231 corresponding to the first hole 51 of the shock absorber 5, the mounting shaft 4 arranged on the equipment 3 penetrates through the through hole 231 on the inner vertical plate 23 and is inserted into the first hole 51 of the shock absorber 5, and the free end of the mounting shaft 4 is fixed on the shock absorber 5 through a baffle and a fastener. Be equipped with horizontal backstop 9 on equipment 3, horizontal backstop 9 includes horizontal damping pad 92 and horizontal damping mount pad 91, and horizontal damping mount pad 91 fixed connection is on equipment 3, and when producing lateral vibration, horizontal damping pad 92 contacts with the medial surface of chassis boundary beam 1, the lateral vibration that effectively absorbs the vehicle motion in-process and produce. It should be noted that the inner vertical plate 23 and the outer vertical plate 24 of the suspension base 2 are symmetrically arranged, and the outer vertical plate 24 of the suspension base 2 can also be provided with a through hole 231 corresponding to the first hole 51 of the shock absorber 5, so that the universality of the suspension base 2 is enhanced, and the suspension mounting is convenient.

As shown in fig. 1 and 4, the anti-drop seat 6 is disposed between the two suspension seats 2, the anti-drop shaft 7 disposed on the device 3 extends into the second hole 61, the anti-drop shaft 7 is not in direct contact with the second hole 61, and when the device 3 drops, the anti-drop seat 6 supports the anti-drop shaft 7 on the device 3, thereby performing a double protection function. And longitudinal stops 8 are oppositely arranged on the surface of the second hole 61 along the longitudinal direction, each longitudinal stop 8 comprises a longitudinal vibration damping mounting seat 81 and a longitudinal vibration damping pad 82, the longitudinal vibration damping mounting seats 81 are mounted on the surface of the second hole 61, and the longitudinal vibration damping pads 82 are mounted on the longitudinal vibration damping mounting seats 81 and absorb longitudinal vibration generated when the train runs.

It is to be understood that the present invention has been described with reference to the embodiments, and those skilled in the art will recognize that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the present 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 elastic suspension mounting structure under rail vehicle car, is including installing suspension seat (2) at chassis boundary beam (1) lower extreme, be equipped with on equipment (3) and can hold in the palm installation axle (4) of dress on suspension seat (2), its characterized in that:

the suspension seat (2) comprises a top plate (21), a bottom plate (22), and an inner vertical plate (23) and an outer vertical plate (24) which are used for connecting the top plate (21) and the bottom plate (22) and are arranged oppositely, the top plate (21) is fixedly connected with the side beam (1) of the underframe, and the inner vertical plate (23) is provided with a through hole (231) for the installation shaft (4) to pass through;

the bottom plate (22) is detachably provided with a shock absorber (5), the shock absorber (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) penetrates through the through hole (231) and is inserted into the first hole (51).

2. The rail vehicle underride resilient suspension mounting structure of claim 1, wherein: the top plate (21), the bottom plate (22), and the inner vertical plate (23) and the outer vertical plate (24) which are connected with the top plate (21) and the bottom plate (22) and are oppositely arranged are of an integrated structure.

3. The rail vehicle underride resilient suspension mounting structure of claim 2, wherein: the anti-falling device is characterized by further comprising an anti-falling seat (6), wherein a second hole (61) into which an anti-falling shaft (7) arranged on the equipment (3) extends is formed in the anti-falling seat (6); the anti-drop seat (6) is fixedly connected to the lower end of the side beam (1) of the underframe, and the anti-drop seat (6) is located between the two suspension seats (2).

4. The rail vehicle underride resilient suspension mounting structure of claim 3, wherein: the surface of the second hole (61) is provided with a plurality of longitudinal stops (8) along the longitudinal direction.

5. The rail vehicle underride resilient suspension mounting structure of claim 4, wherein: each longitudinal stop (8) comprises a longitudinal vibration damping mounting seat (81) and a longitudinal vibration damping pad (82) arranged on the longitudinal vibration damping mounting seat (81), and the longitudinal vibration damping mounting seat (81) is fixedly connected with the second hole (61).

6. The under-car heavy equipment elastic suspension mounting structure for a railway vehicle as claimed in any one of claims 1 to 5, wherein: the device is characterized by further comprising a plurality of transverse stops (9), wherein each transverse stop (9) is arranged between the longitudinal side face of the device (3) and the inner side face of the underframe edge beam (1); each transverse stopping block (9) comprises a transverse vibration damping mounting seat (91) and a transverse vibration damping pad (92) arranged on the transverse vibration damping mounting seat (91), and the transverse vibration damping mounting seats (91) are fixedly connected to the equipment (3) or the underframe boundary beam (1).

7. The rail vehicle underride resilient suspension mounting structure of claim 1, wherein: the suspension seat (2) is detachably connected with the underframe boundary beam (1).