WO2021000710A1

WO2021000710A1 - Rail vehicle and windshield hanging device thereof

Info

Publication number: WO2021000710A1
Application number: PCT/CN2020/095566
Authority: WO
Inventors: 王雷; 刘青波; 杨姝; 邓洋; 孙光奇
Original assignee: 中车长春轨道客车股份有限公司
Priority date: 2019-07-02
Filing date: 2020-06-11
Publication date: 2021-01-07
Also published as: EP3957537B1; EP3957537A1; RS65737B1; CN110254455A; EP3957537A4; SG11202112497TA; CN110254455B

Abstract

Disclosed is a windshield hanging device (23), comprising mounting seats (11) arranged on two sides of the bottom of a vehicle frame, and a connection member (12) arranged in the middle of the bottom of the vehicle frame, wherein a middle bearing (121) is arranged in the middle of the connection member (12) in a vertical direction, and a middle supporting shaft (122) is coaxially inserted into the middle of the middle bearing (121) in a fixed-axis rotatable manner; a top end of the middle supporting shaft (122) is fixed to the bottom of an inner compartment body (22) of a vehicle, and a bottom end of the middle supporting shaft (122) is fixed to an inner wall of the bottom of a windshield (21) of the vehicle; and a vertically-arranged end bearing (111) is hinged to an inner side of the mounting seat (11), an end supporting shaft (112) is coaxially inserted into the middle of the end bearing (111) in a fixed-axis rotatable manner, an elastic buffer member (13), arranged in a width direction of the vehicle frame, is connected between the end bearing (111) and the connection member (12), and a sleeve (14) capable of extending and retracting in the width direction of the vehicle frame is mounted outside the elastic buffer member (13) in a sleeving manner.

Description

Rail vehicle and its windshield hanging device

This application claims the priority of a Chinese patent application filed with the Chinese Patent Office on July 02, 2019, the application number is 201910596823.8, and the invention title is "Rail Vehicles and Windshield Suspension Devices", the entire contents of which are incorporated into this application by reference in.

Technical field

The invention relates to the technical field of rail vehicle body supporting components, and in particular to a windshield hanging device. The invention also relates to a rail vehicle applying the windshield hanging device.

Background technique

During the development and operation of current rail vehicles, especially high-speed EMU trains, in order to ensure the aerodynamic performance of the vehicles and reduce air resistance during operation, windshields and corresponding structures are usually provided at the ends of two adjacent cars.

In order to facilitate understanding of the existing solution, please refer to FIG. 1, which is a schematic diagram of the coordination structure between the inner car body and the windshield of a common rail vehicle in the prior art. This type of windshield 21 with a sealed bellows structure is affected by its own structure and the structural form of related components. After the installation is completed, the windshield 21 and its corresponding parts sink during the driving process, which will cause the body to exceed The limit requirements stipulated by the normal operation of the vehicle adversely affect the normal and stable operation of the vehicle.

Therefore, how to improve the structural reliability of the windshield part of the rail vehicle and avoid the sinking of the windshield is an important technical problem to be solved by those skilled in the art.

Summary of the invention

The object of the present invention is to provide a windshield suspension device, which can effectively ensure the structural support of the windshield part of the rail vehicle, significantly improve the structural reliability of the windshield part of the rail vehicle, and avoid the vibration of the windshield during the running of the vehicle And sinking phenomenon. Another object of the present invention is to provide a rail vehicle using the above-mentioned windshield suspension device.

In order to solve the above technical problems, the present invention provides a windshield suspension device, which includes mounting seats arranged on both sides of the bottom of the frame and connecting pieces arranged in the middle of the bottom of the frame, the middle of the connecting pieces being arranged in a vertical direction There is a middle bearing, the middle part of the middle bearing is coaxially inserted with a middle support shaft in a fixed axis rotatable manner, the top end of the middle support shaft is fixed to the bottom of the inner compartment of the vehicle, and the bottom end of the middle support shaft is fixed The bottom inner wall of the windshield of the vehicle;

The inner side of the mounting seat is hinged with an end bearing arranged in a vertical direction, and an end support shaft is inserted coaxially in the middle of the end bearing to be rotatable on a fixed axis, and the end bearing is connected to the connecting piece. An elastic buffer member arranged along the width direction of the vehicle frame is connected therebetween, and a sleeve that can be telescoped along the width direction of the vehicle frame is sleeved on the outside of the elastic buffer member.

Preferably, the sleeve includes an inner cylinder hinged to the end bearing and an outer cylinder hinged to the middle bearing, and the inner end of the inner cylinder is inserted into the outer cylinder The outer end of the inner cylinder and the inner wall of the outer cylinder can be relatively movable in the axial direction and fit together.

Preferably, the outer circumference of the mating surface of the outer cylinder and the inner cylinder is coaxially sleeved with a dust cover in an axially telescopic manner.

Preferably, the top end of the middle bearing has an upper boss, and the upper boss is inserted with an upper lock pin that is detachably connected to the inner box body;

The bottom end of the middle bearing is provided with a lower boss, and a lower lock pin detachably connected with the windshield is provided on the lower boss.

Preferably, the inner wall of the mounting seat is provided with two lugs respectively aligned with the two ends of the end support shaft along the vertical direction. The direction penetrates and extends to the corresponding lug, and the bottom extension end of the end support shaft is provided with a limit pin, and the top extension end of the end support shaft is provided with the lug card Connect the matching limit boss.

Preferably, the elastic buffer member is a spring or a leaf spring.

The present invention also provides a rail vehicle, including a frame, an inner car body, and a windshield sheathed outside the ends of two adjacent inner car bodies, and also includes a windshield hanging device, the windshield hanging device being any one of the above The windshield hanging device described in item.

Compared with the above-mentioned background technology, the windshield suspension device provided by the present invention can reliably connect the inner car body and the windshield after the assembly is completed, and provide sufficient and reliable structural support for the vehicle inner car body and the windshield and related structures. During the driving of the vehicle, when encountering terrain undulations or other situations that tend to cause the windshield to sink, the elastic buffer can rely on its own bending and expansion and other elastic deformations to effectively alleviate the structure of the windshield and its related components in this state The impact ensures the relative position relationship between the inner car body and the windshield and the stability of the main structure of the rail vehicle frame, avoiding the sinking phenomenon of the windshield, and improving the structural reliability of the windshield and its related components. During the deformation process of the buffer member, the sleeve can provide sufficient structural protection for the elastic buffer member to prevent the external environment from interfering with the elastic buffer member, and simultaneously expand and contract when the elastic buffer member expands, thereby preventing the elastic buffer member from being Loosening or dislocation occurs during the deformation process, ensuring the overall structural linkage and reliability of the windshield suspension device.

In another preferred solution of the present invention, the sleeve includes an inner cylinder hinged to the end bearing and an outer cylinder hinged to the middle bearing, and the inner end of the inner cylinder is inserted It is mounted on the outer end of the outer cylinder, and the outer wall of the inner cylinder and the inner wall of the outer cylinder can be relatively moved in the axial direction and fit properly. This kind of inner and outer sleeve coaxially aligned and inserted structure has good linkage, high reliability, and requires less assembly space, which can make full use of the internal assembly space of the rail vehicle and improve the windshield suspension The structure of the hanging device is reasonable and the matching components are consistent.

Description of the drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work.

Fig. 1 is a schematic diagram of the coordination structure between the inner car body and the windshield of a common rail vehicle in the prior art;

Fig. 2 is a schematic diagram of an assembly structure of a windshield suspension device according to a specific embodiment of the present invention;

Fig. 3 is a schematic diagram of the matching structure between the windshield hanging device and the inner car body in Fig. 2.

Among them, 11-mounting seat, 111-end bearing, 112-end support shaft, 113-lug, 114-limit pin, 115-limit boss, 12-connector, 121-center bearing, 122- Middle support shaft, 123-upper boss, 124-upper lock pin, 125-lower boss, 126-lower lock pin, 13-elastic buffer, 14-sleeve, 141-inner cylinder, 142-outer cylinder , 15-Dust cover, 21-Windshield, 22-Inner car body, 23-Windshield hanging device.

Detailed ways

The core of the present invention is to provide a windshield hanging device, which can effectively ensure the structural support of the windshield part of the rail vehicle, significantly improve the structural reliability of the windshield part of the rail vehicle, and avoid the windshield shaking during the running of the vehicle And the sinking phenomenon; at the same time, a rail vehicle using the above-mentioned windshield suspension device is provided.

In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

Please refer to FIG. 2, which is a schematic diagram of the assembly structure of the windshield suspension device provided by a specific embodiment of the present invention; FIG. 3 is a schematic diagram of the cooperation structure between the windshield suspension device and the inner car body in FIG. 2.

It should be particularly noted that, in order to facilitate the understanding of the relative positional relationship and basic structure of the relevant mating parts in this solution, the windshield and the inner box involved in this embodiment adopt the corresponding labels in Figure 1 to facilitate understanding of the solution content .

In a specific embodiment, the windshield suspension device 23 provided by the present invention includes mounting seats 11 arranged on both sides of the bottom of the frame and a connecting piece 12 arranged at the middle of the bottom of the frame. The middle of the connecting piece 12 is vertical. A middle bearing 121 is provided in the middle of the middle bearing 121 to be coaxially rotatably inserted with a middle support shaft 122. The top end of the middle support shaft 122 is fixed to the bottom of the vehicle interior 22, and the bottom of the middle support shaft 122 The end is fixed to the bottom inner wall of the windshield 21 of the vehicle; the inner side of the mounting seat 11 is hinged with an end bearing 111 arranged in the vertical direction, and the middle of the end bearing 111 is coaxially inserted with an end support shaft 112 to rotate on a fixed axis An elastic buffer member 13 arranged along the width direction of the frame is connected between the end bearing 111 and the connecting member 12, and a sleeve 14 that can expand and contract in the width direction of the frame is sleeved on the outside of the elastic buffer member 13.

After the assembly is completed, the inner car body 22 and the windshield 21 can be reliably connected, and sufficient and reliable structural support is provided for the vehicle inner car body 22 and the windshield 21 and related structures. When the vehicle is running, when the terrain is undulating or other When the windshield 21 tends to sink, the elastic buffer 13 can effectively alleviate the structural impact of the windshield 21 and its related components in this state by virtue of its own elastic deformation such as bending and expansion, and ensure that the inner box 22 and the windshield The relative positional relationship between the 21 and the stability of the main structure of the rail vehicle frame, etc., prevent the windshield 21 from sinking, and improve the structural reliability of the windshield 21 and its related components. At the same time, the deformation of the elastic buffer 13 In the process, the sleeve 14 can provide sufficient structural protection for the elastic buffer 13 to prevent the external environment from interfering with the elastic buffer 13 and simultaneously expand and contract when the elastic buffer 13 expands, thereby preventing the elastic buffer 13 from being The loosening or dislocation occurs during the deformation process, which ensures the overall structural linkage and reliability of the windshield suspension device 23.

In addition, it should be noted that through the articulated adaptation between the above-mentioned bearings and the corresponding support shafts, the windshield suspension device 23 can be formed into a universal joint structure that can flexibly swing and turn with the vehicle body, thereby fully ensuring the The operational flexibility of the windshield suspension device 23 and its linkage with the main structure of the vehicle ensure the overall operational stability of the rail vehicle.

Specifically, the sleeve 14 includes an inner cylinder 141 hinged to the end bearing 111 and an outer cylinder 142 hinged to the middle bearing 121, and the inner end of the inner cylinder 141 is inserted into the outer end of the outer cylinder 142 Part, and the outer wall of the inner cylinder 141 and the inner wall of the outer cylinder 142 can be relatively moved in the axial direction to fit together. This kind of inner and outer sleeve 14 has good structural linkage and high reliability, and requires less assembly space, which can make full use of the internal assembly space of the rail vehicle and improve the windshield The structure of the hanging device 23 is reasonable and the matching components are consistent.

More specifically, the outer peripheral portion of the mating surface of the outer cylinder 142 and the inner cylinder 141 is coaxially sleeved with the dust cover 15 so as to be telescopic and axial. The dust cover 15 can further ensure the relative isolation between the elastic buffer 13 and the external environment, avoid dust and impurities in the external environment from adversely affecting the stable operation of the elastic buffer 13 and its related counterparts, and ensure the elastic buffer 13 And the working efficiency and reliability of the sleeve 14.

It should be pointed out that in practical applications, both the sleeve 14 and the dust cover 15 may adopt an axially retractable pleated structure to further optimize the assembly space of the windshield suspension device 23. Of course, in order to ensure the assembly and operation requirements under different working conditions, the staff can flexibly choose the structure of the sleeve 14 and the dust cover 15 according to the actual working conditions. In principle, as long as they can meet the requirements of the windshield hanging device 23 It can be used as needed.

Further, the top end of the middle bearing 121 has an upper boss 123, and the upper boss 123 is inserted with an upper locking pin 124 detachably connected to the inner box body 22; the bottom end of the middle bearing 121 has a lower boss 125 , The lower boss 125 is provided with a lower lock pin 126 that is detachably connected to the windshield 21. Each boss can provide sufficient structural support for the corresponding lock pin and its connecting structure, and the detachable connection of each lock pin can further ensure the assembly of the windshield hanging device 23 with the inner box 22 and the windshield 21 Reliability and convenience of disassembly and assembly when maintenance is required.

On the other hand, the inner wall of the mounting seat 11 is provided with two lugs 113 aligned with the two ends of the end support shaft 112 opposite to each other in the vertical direction, and both ends of the end support shaft 112 are respectively along the vertical direction. It penetrates and protrudes to the corresponding lug 113, and the bottom protruding end of the end support shaft 112 is provided with a limit pin 114, and the top protruding end of the end support shaft 112 is provided with a limiter for snap-fitting with the lug 113. Position boss 115. Each lug 113 can provide reliable structural support for the end support shaft 112 and its corresponding end bearing 111, and the alignment is realized by the clamping between the limit boss 115 and the limit pin 114 and the lug 113 of the corresponding mating end The axial limit of the end support shaft 112 prevents the end support shaft 112 from loosening or misalignment, and ensures the overall structural reliability of the windshield suspension device 23 and the running stability of the rail vehicle.

In addition, the elastic buffer 13 is a spring or a leaf spring. Taking into account the structural matching and cushioning effect in practical applications, under general working conditions, the above-mentioned elastic cushioning member 13 is preferably a spring as shown in the figure, but when the vertical rigidity impact is large or the horizontal rigid support demand is high , A leaf spring can also be selected, in principle, as long as it can meet the actual use needs of the windshield suspension device 23.

In a specific embodiment, the rail vehicle provided by the present invention includes a frame, an inner car body 22, and a windshield 21 that is sheathed outside the ends of two adjacent inner car bodies 22, and also includes a windshield hanging device 23. The windshield The hanging device 23 is the windshield hanging device 23 as described in the above embodiment. The running process of the rail vehicle is relatively stable, and the windshield 21 will not sink.

In summary, the windshield suspension device provided in the present invention can reliably connect the inner car body and the windshield after the assembly is completed, and provide sufficient and reliable structural support for the vehicle inner car body and the windshield and related structures. During driving, when encountering terrain undulations or other situations that tend to cause the windshield to sink, the elastic buffer can rely on its own elastic deformation such as bending and expansion to effectively relieve the structural impact of the windshield and its related components in this state , To ensure the relative position relationship between the inner car body and the windshield and the stability of the main structure such as the frame of the rail vehicle, avoid the sinking phenomenon of the windshield, and improve the structural reliability of the windshield and its related components. At the same time, the above-mentioned elastic buffer During the deformation process of the piece, the sleeve can provide sufficient structural protection for the elastic buffer member, avoid the external environment from interfering with the elastic buffer member, and simultaneously expand and contract when the elastic buffer member expands, thereby avoiding the elastic buffer member from deforming Loosening or dislocation occurs during the process, which ensures the overall structural linkage and reliability of the windshield suspension device.

In addition, the rail vehicle using the above-mentioned windshield suspension device provided by the present invention has a relatively stable driving process, and the windshield does not sink.

The windshield suspension device provided by the present invention and the rail vehicle applying the windshield suspension device have been described in detail above. Specific examples are used in this article to illustrate the principle and implementation of the present invention. The description of the above examples is only used to help understand the method and core idea of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

A windshield suspension device, which is characterized in that it comprises mounting seats arranged on both sides of the bottom of the frame and a connecting piece arranged in the middle of the bottom of the frame, the middle of the connecting piece is provided with a middle bearing along the vertical direction, so The middle part of the middle part bearing is coaxially inserted with a middle part support shaft so as to be rotatable on a fixed axis. The top end of the middle part support shaft is fixed to the bottom of the inner compartment of the vehicle, and the bottom end of the middle part support shaft is fixed to the windshield of the vehicle. Bottom inner wall

The inner side of the mounting seat is hinged with an end bearing arranged in a vertical direction, and an end support shaft is inserted coaxially in the middle of the end bearing to be rotatable on a fixed axis, and the end bearing is connected to the connecting piece. An elastic buffer member arranged along the width direction of the vehicle frame is connected therebetween, and a sleeve that can be telescoped along the width direction of the vehicle frame is sleeved on the outside of the elastic buffer member.
The windshield suspension device of claim 1, wherein the sleeve includes an inner cylinder hinged to the end bearing and an outer cylinder hinged to the middle bearing, and the inner cylinder The inner end of the body is inserted into the outer end of the outer cylinder, and the outer wall of the inner cylinder and the inner wall of the outer cylinder can be fitted together so as to be relatively movable in the axial direction.
The windshield suspension device according to claim 2, wherein the outer circumference of the mating surface of the outer cylinder and the inner cylinder is coaxially and telescopically sleeved with a dust cover.
The windshield suspension device according to claim 1, characterized in that: the top end of the middle bearing has an upper boss, and the upper boss is inserted with an upper lock pin detachably connected with the inner box body ；

The bottom end of the middle bearing is provided with a lower boss, and a lower lock pin detachably connected with the windshield is provided on the lower boss.
The windshield suspension device according to claim 1, characterized in that: the inner wall of the mounting seat is provided with two lugs corresponding to the two ends of the end support shaft in a vertical direction. Both ends of the end support shaft respectively penetrate in the vertical direction and protrude from the corresponding lugs, and the bottom extension end of the end support shaft is provided with a limit pin, and the end support shaft The top extension end of the elbow is provided with a limiting boss that is snap-fitted with the lug.
The windshield suspension device according to claim 1, wherein the elastic buffer member is a spring or a leaf spring.
A rail vehicle, comprising a frame, an inner car body, and a windshield sleeved on the outer sides of the ends of two adjacent inner car bodies, characterized in that it further comprises a windshield hanging device, and the windshield hanging device is as claimed in claim 1. The windshield suspension device described in any one of to 6.