WO2023198159A1

WO2023198159A1 - Articulated railcar unit

Info

Publication number: WO2023198159A1
Application number: PCT/CN2023/088152
Authority: WO
Inventors: 廖渝江; 严志雄; 涂智文; 易军恩; 李华宴; 吴先年; 晏梦文; 江荷燕; 蒲杨丹; 唐大璇; 管希
Original assignee: 中车长江车辆有限公司; 中车长江运输设备集团有限公司科技开发分公司
Priority date: 2022-04-14
Filing date: 2023-04-13
Publication date: 2023-10-19
Also published as: CN114701531A

Abstract

The present disclosure belongs to the technical field of railway vehicles. Disclosed is an articulated railcar unit, the articulated railcar unit comprising: railcar bodies (300) successively arranged, and, arranged below the railcar bodies (300), a middle jakobs bogie (200) and end jakobs bogies (100), between each two adjacent railcar bodies (300), support being provided by means of the middle jakobs bogie (200). Of two railcar bodies (300) among the railcar bodies (300) successively arranged, the ends away from each other are respectively supported by the end jakobs bogies (100), the two railcar bodies (300) being located at two ends. The low-power jakobs bogies and the articulated railcar unit provided by the present disclosure have good overall performance.

Description

A kind of joint vehicle group

Cross-references to related applications

This disclosure claims priority from the Chinese patent application filed on April 14, 2022 with application number 202210391571.7 and titled "A Joint Vehicle Set", the entire content of which is incorporated herein by reference.

Technical field

The present disclosure belongs to the technical field of railway vehicles, and particularly relates to an articulated train set.

Background technique

In the five-joint joint vehicle group, there are five vehicle bodies connected in sequence. In actual operation, the shock absorption effect is not ideal, and the performance difference is large between empty and heavy vehicle conditions; at the same time, the anti-diamond stiffness, vertical and lateral dynamics The performance is not ideal; the installation and operation of the joint bogie is inconvenient, the overall operating stability is poor, and the vehicle's cornering ability is not ideal.

Contents of the invention

The present disclosure provides an articulated vehicle set, which aims to improve the shock absorption performance, diamond resistance stiffness, convenience of installation and operation of the joint bogies, and overall operational stability to a certain extent by using one or more embodiments of the disclosure. , the vehicle's cornering ability.

According to the present disclosure, an articulated vehicle set is provided, which includes: a vehicle body arranged in sequence and an end joint bogie and a middle joint bogie arranged under the vehicle body; two adjacent vehicle bodies are connected by the middle joint Bogie support; in the car bodies arranged in sequence, the ends of the two car bodies facing away from each other are supported by end joint bogies.

In some embodiments, the central articulated bogie includes: a first bolster component, a first central suspension device, a first side frame component, a first axle box suspension device, a first wheel pair component, and a first flexible diagonal connection device ; The first bolster component is connected to the first side frame component through the first central suspension device, and the first wheel pair component is connected to the first side frame component through the first axle box suspension device, The first flexible diagonal connection device is integrally connected with the first side frame; the first central suspension device includes: a first inner circular spring, a first outer circular spring, a first inner circular shock absorbing spring, a first The outer circular damping spring and the first supporting wedge; the first inner circular spring and the first outer circular spring are arranged on The first side frame component is located below the end of the first bolster component, wherein the first inner circle spring is embedded in the first outer circle spring; the first inner circle shock absorber The spring and the first outer circular shock-absorbing spring are arranged on the first side frame component and located below the end of the first bolster component, wherein the first inner circular shock-absorbing spring is embedded in the Inside the first cylindrical damping spring, the first cylindrical spring is arranged adjacent to the first cylindrical damping spring; the first support wedge is arranged on the first cylindrical damping spring , and the first support wedge is contacted and supported on the bottom of the first bolster assembly.

In some embodiments, the first bolster consists of: a first bolster, a first side bearing, a side bearing mounting seat, and a first core disc wear disc; the first center disc wear disc is disposed on the first On a bolster; the first side bearing is arranged on the first bolster through the side bearing mounting seat, and two sets of the side bearing mounting seats are located on both sides of the heart disc wear disk.

In some embodiments, two sets of first side supports are provided on the side support mounting base along the width direction of the first bolster.

In some embodiments, the first bolster component further includes: a first dust-proof ring; the first dust-proof ring is disposed outside the first core disc wear disc.

In some embodiments, the first side frame component includes: two first side frames arranged oppositely; both ends of the first bolster component are respectively fixed on the two first side frames through the first central suspension device. between the first side frames; the first wheel pair component is connected between the two first side frames through the first axle box suspension device; the first flexible diagonal device connects the two second side frames between the side shelves.

In some embodiments, the first flexible diagonal device includes: a first tie rod and a second tie rod that are cross-connected; a first flexible diagonal connection seat is provided on the first side frame, and the first tie rod and The second pull rods are respectively connected between the two first flexible diagonal connection seats.

In some embodiments, the end-joint bogie includes: a second bolster assembly, a second central suspension device, a second side frame assembly, a second axle box suspension device, a second wheel pair assembly, and a second flexible pair Angle connection device; the second bolster component is connected to the second side frame component through the second central suspension device, and the second wheel pair component is connected to the second axle box suspension component through the second axle box suspension device. The side frames are integrally connected, and the second flexible diagonal connection device is integrally connected with the second side frame; the second central suspension device includes: a second inner circular spring, a second outer circular spring, a second inner circular reducer The shock spring, the second outer circular shock absorbing spring, the damper and the second supporting wedge; the second inner circular spring and the second outer circular spring are arranged on the second side frame component and are located on the third side frame. Two bolsters are formed below the ends, wherein the second inner circle spring is embedded in the second outer circle spring; the second inner circle shock-absorbing spring The spring and the second outer circular shock-absorbing spring are arranged on the second side frame component and located below the end of the second bolster component, wherein the second inner circular shock-absorbing spring is embedded in the The second outer circular damping spring is located adjacent to the second outer circular damping spring; the damper is arranged on the second side frame and the second rocker. between the pillow components; the second support wedge is arranged on the second cylindrical shock absorbing spring, and the second support wedge is contacted and supported at the bottom of the second bolster assembly.

In some embodiments, the damper is disposed between two sets of second cylindrical shock absorbing springs.

In some embodiments, the damper is a spring damper.

Description of the drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, a brief introduction will be made below to the drawings needed to be used in the description of the embodiments. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without exerting creative efforts.

Figure 1 shows a schematic structural diagram of an articulated vehicle set according to some embodiments of the present disclosure;

Figure 2 shows a schematic structural diagram of an end-joint bogie according to some embodiments of the present disclosure;

Figure 3 shows a schematic structural diagram of a middle joint bogie according to some embodiments of the present disclosure;

Figure 4 is a schematic structural diagram of the bolster composed of the end joint bogie in Figure 2;

Figure 5 is a schematic structural diagram of the bolster composed of the middle joint bogie in Figure 3;

Figure 6 is a structural schematic diagram of the side frame composition and flexible diagonal connection device of the middle joint bogie in Figure 3;

Figure 7 is a schematic structural diagram of the side frame composed of the side frame of the middle joint bogie in Figure 3;

Figure 8 is a schematic structural diagram of the second central suspension device of the end joint bogie in Figure 2;

Figure 9 is a schematic structural diagram of the first central suspension device of the middle joint bogie in Figure 3.

Reference signs: 100-end joint bogie; 110-second side frame composition; 120-second bolster composition, 121-second bolster, 122-second heart disk wear disk, 123-second dustproof Ring; 130-second central suspension device, 131-second inner circle spring, 132-second outer circle spring, 133-damper, 134-second support wedge, 135-second inner circle shock absorber spring, 136 - The second cylindrical shock absorbing spring; 140 - the second flexible diagonal connection device; 150 - the second wheel pair composition; 160 - the second side bearing composition, 161 - the second side bearing.

200-middle joint bogie; 210-first side frame composition, 211-first side frame, 212-first flexibility Diagonal connection seat, 213-first suspension device platform; 220-first bolster composition, 221-first bolster, 222-first center disc wear disk, 223-first dust ring; 230-first Central suspension device, 231-first inner circle spring, 232-first outer circle spring, 234-first support wedge, 236-first outer circle shock-absorbing spring; 240-first flexible diagonal connection device, 241- The first pull rod, 242 - the second pull rod; 250 - the first wheel pair; 260 - the first side bearing, 261 - the first side bearing, 262 - the side bearing mounting base.

300-car body

Detailed ways

The present disclosure provides a joint vehicle set, which aims to improve the shock absorption performance, diamond resistance stiffness, ease of installation and operation of the joint bogie, overall operating stability, and vehicle cornering ability to a certain extent.

Referring to FIG. 1 , the present disclosure provides an articulated vehicle set, which mainly includes: a vehicle body 300 arranged in sequence and an articulated bogie arranged below the vehicle body 300 to carry the vehicle body 300 .

In some embodiments, in order to improve overall performance such as shock absorption performance and cornering stability of the articulated vehicle set, the articulated bogie can be divided into a middle articulated bogie 200 and an end portion according to the arrangement position and the way of supporting the vehicle body 300 The articulated bogie 100 will be described in detail below.

In some embodiments, in a sequentially arranged multi-section car body 300, two adjacent car bodies 300 are supported by a middle joint bogie 200, that is, the adjacent ends of the two adjacent car bodies 300 are connected respectively. On and supported by the same middle joint bogie 200 to suppress vibration; in the car bodies 300 arranged in sequence, in the direction of car body arrangement, the front end of the front end car body and the rear end part of the rear end car body are respectively Supported by end joint bogies 100 to achieve independent support.

Referring to Figure 3, in some embodiments, the middle articulated bogie 200 may include: a first side frame component 210, a first bolster component 220, a first central suspension device 230, a first flexible diagonal connection device 240, a first The wheelset makes up 250 and the first side makes up 260.

The first bolster assembly 220 is connected to the first side frame assembly 210 through the first central suspension device 230. The first central suspension device 230 can be disposed on the first side frame assembly 210. The first bolster assembly 220 is fixed on the first side frame assembly 210. A central connecting device 230 is provided with elastic shock-absorbing support and is connected to the first side frame assembly 210 . The first wheelset assembly 250 may be fixed on the first side frame assembly 210 through a first axle box suspension device. And the two first side frames 211 of the first side frame assembly 210 are connected through a first flexible delivery connection device 240 . The first side support assembly 260 is disposed on the first bolster assembly 220 to support the vehicle body 300 .

Referring to Figure 2, in some embodiments, the end joint bogie 100 may include: a second side frame assembly 110, a second bolster assembly 120, a second central suspension device 130, and a second flexible diagonal connection device. 140. The second round pair constitutes 150 and the second side pair constitutes 160.

Among them, the second bolster assembly 120 is connected to the second side frame assembly 110 through the second central suspension device 130. The second central suspension device 130 can be arranged on the second side frame assembly 110, and the second bolster assembly 120 is fixed. On the second central connecting device 130, elastic shock-absorbing support is implemented and connected to the second side frame assembly 110. The second wheelset assembly 150 may be fixed on the second side frame assembly 110 through a second axle box suspension device. And the two second side frames of the second side frame assembly 110 are connected through a second flexible delivery connection device 140 . The second side support assembly 160 is disposed on the second bolster assembly 120 to support the vehicle body 300 .

The following will describe the different support and shock-absorbing structure designs that can be achieved for the middle joint bogie 200 and the end joint bogie 100 respectively.

Referring to Figures 2, 4 and 8, in some embodiments, the end joint bogie 100 is used to independently support the end of the vehicle body 300. In order to cope with the state of independent support of the ends and achieve support and shock absorption; the second central suspension device 130 may include: a second inner circular spring 131, a second outer circular spring 132, a second inner circular shock absorbing spring 135, a second The outer circular shock absorbing spring 136, the damper 133 and the second supporting wedge 134.

The second inner circle spring 131 and the second outer circle spring 132 are arranged on the second side frame assembly 110 and are located below the end of the second bolster assembly 120. The second inner circle spring 131 is embedded in the second outer circle spring. An elastic pressure-bearing structure is formed inside the spring 132, which can buffer and absorb shock to a certain extent.

The second inner circle shock absorbing spring 135 and the second outer circle shock absorbing spring 136 are arranged on the second side frame assembly 110 and located below the end of the second bolster assembly 120, wherein the second inner circle shock absorbing spring 135 is embedded in is provided in the second outer circular shock absorbing spring 136; the second supporting inclined wedge 134 is provided on the second outer circular damping spring 136, and the second supporting inclined wedge 134 is contacted and supported at the bottom of the second bolster assembly 120; thus mainly It carries the weight of the second bolster assembly 120 and absorbs the vibration caused by lowering the vehicle body 300 .

In some embodiments, in order to effectively suppress the impact of the vehicle body 300, the second cylindrical spring 132 and the second cylindrical damping spring 136 can be disposed adjacent to each other, and the damper 134 is disposed between the second side frame assembly 110 and the second The bolster consists of between 120 pieces.

In some embodiments, the second cylindrical shock-absorbing spring 136 can be disposed between two or more second cylindrical springs 132 to evenly distribute the impact and vibration from the second bolster assembly 120 .

In some embodiments, the damper 133 may be disposed between the two sets of second cylindrical shock absorbing springs 136 . It is also possible to set four second outer circle springs 132 and two second outer circle damping springs 136, divided into two rows, and each row is arranged into two second outer circle springs 132 arranged on a second outer circle. damping In the form of springs 136 on both sides, dampers 133 are provided between the two rows. This distribution can also effectively reduce the vibration of the bogie while ensuring the vertical stiffness of the bogie.

In some embodiments, the damper 133 can be configured as a spring damper, which can well cooperate with the second cylindrical spring 132 and the second cylindrical shock-absorbing spring 136; of course, it can also be other forms of dampers, which are not limited here. .

In some embodiments, the second support wedge 134 is provided with a support ramp, and the two support ramps are arranged opposite each other in a similar to an inverted figure to achieve the effects of clamping and upward pushing, thereby enabling stable and reliable matching and support. The second bolster is fixed to form 120.

Referring to FIG. 4 , in some embodiments, in order to adapt to the operating state and fixed state of the vehicle body, the second bolster assembly 120 includes: a second bolster 121 , a second side bearing 161 and a second center disc wear disc 122 . During assembly, the second center disc wear disc 122 is arranged on the second bolster 121, generally in the middle thereof, and two first side supports 161 are respectively arranged on both sides of the second center disc wear disc 122 to support the vehicle. Body 300.

In some embodiments, in order to maintain the matching stability of the upper and lower heart plates, the second bolster assembly 120 may also be provided with a second dust ring 123, which is disposed outside the second heart plate wear plate 122 to wear the second heart plate. The disk 122 is surrounded inside to form a fence-like structure to prevent sand and dust from entering.

Referring to Figures 3, 5 and 9, in some embodiments, the middle joint bogie 200 is used to simultaneously support the ends of two adjacent car bodies 300. In order to cope with the state of simultaneous support of the ends and achieve support and shock absorption; the first central suspension device 230 may include: a first inner circular spring 231, a first outer circular spring 232, a first inner circular shock absorbing spring, a first outer circular spring The circular shock absorbing spring 236 and the first supporting wedge 234.

Among them, the first inner circle spring 231 and the first outer circle spring 232 are arranged on the first side frame assembly 210 and are located below the end of the first bolster assembly 220. The first inner circle spring 231 is embedded in the first outer circle. An elastic pressure-bearing structure is formed inside the spring 232, which can buffer and absorb shock to a certain extent.

In some embodiments, the first inner circle shock absorbing spring and the first outer circle shock absorbing spring 236 are disposed on the first side frame assembly 210 and located below the end of the first bolster assembly 220, wherein the first inner circle The shock-absorbing spring is embedded in the first outer circular shock-absorbing spring 236; the first supporting inclined wedge 234 is arranged on the first outer circular damping spring 236, and the first supporting inclined wedge 234 is contacted and supported on the first bolster assembly 220 The bottom portion thus mainly carries the weight of the first bolster component 220 and absorbs the vibration caused by lowering the vehicle body 300 .

In some embodiments, in order to effectively suppress the impact of the vehicle body 300 , the first cylindrical spring 232 and the first cylindrical damping spring 236 may be disposed adjacent to each other.

In some embodiments, the first cylindrical damping spring 236 may be disposed at two or more third Between the outer springs 232, the impact and vibration from the first bolster assembly 220 can be evenly shared.

In some embodiments, the nesting structure of the first outer circle spring 232 and the first inner circle spring 231 can be arranged into seven groups, and the nesting structure of the first outer circle spring 236 and the first inner circle damping spring can be arranged into seven groups. The nested structure is arranged in a regional distribution pattern similar to a nine-square grid, stably maintaining the shock absorption effect and support rigidity, and reducing the vibration of the bogie connecting the two articulated vehicles.

In some embodiments, the first support wedge 234 is provided with a support ramp, and the two support ramps are arranged opposite each other in a figure-like pattern to achieve the effects of clamping and upward pushing, thereby enabling stable and reliable matching and support. The first bolster assembly 220 is fixed.

Referring to Figure 4, in some embodiments, in order to stably support the front and rear car bodies and adapt to the operating and fixed states of the car body, the first bolster assembly 220 may include: a first bolster 221, a first side support 261 and The first core disc wear disc 222. During assembly, the first core disc wear disc 222 is arranged on the first bolster 221, generally in the middle thereof, and two first side supports 261 are respectively arranged on both sides of the first center disc wear disc 222 to support the vehicle. Body 300.

The first side bearing 261 can be arranged on the first bolster 221 through the side bearing mounting seats 262, and the two sets of side bearing mounting seats 262 are located on both sides of the first center plate wear plate 222, thereby raising the vehicle body 300. And two sets of first side supports 261 can be provided on the side support mounting base 262 along the width direction of the first bolster 221 to respectively support the vehicle body.

In some embodiments, in order to maintain the matching stability of the upper and lower heart discs, the first bolster assembly 220 may also be provided with a first dust ring 223, which is disposed outside the first center disc wear disc 222 to wear the first center disc. The disk 222 is surrounded inside to form a fence-like structure to prevent sand and dust from entering.

Referring to Figure 3, in some embodiments, the first side frame assembly 210 includes: two first side frames 211 arranged oppositely; the two ends of the first bolster assembly 220 are respectively fixed on two sides through the first central suspension device 230. between the first side frames 211; the first wheelset assembly 250 is connected between the two first side frames 211 through the second axle box suspension device; the first flexible diagonal device 240 connects the two first side frames between racks 211.

Referring to Figures 6 and 7, in some embodiments, the first flexible diagonal device 240 includes: two sets of cross-connected tie rods, namely the first tie rod 241 and the second tie rod 242; the first side frame 211 is provided with a first The flexible diagonal connection base 212, the first pull rod 241 and the second pull rod 242 are respectively connected between the two first flexible diagonal connection bases 212, and the first pull rod 241 and the second pull rod 242 are arranged crosswise; the first side frame 211 There are two first flexible diagonal connecting rod seats 212 welded at symmetrical positions on one side of the 241 and the second pull rod 242 are fixed on the first flexible diagonal connecting rod base 212 through bolts and cotter pins. After the installation of the cross structure of the first flexible diagonal connection device is completed, it forms two symmetrical triangular structures with the two first side frames 11; the movement of the side frames due to external force can be suppressed.

In order to install the first central suspension device 230, a receiving window can be opened on the first side frame 211, and a load-bearing platform 213 can be opened at the lower part. The first central suspension device 230 can be fixed on the load-bearing platform 213, and the first rocker can be mounted on the first side frame 211. The end of the pillow 221 is embedded in the accommodation window and is elastically supported by the first central suspension device 230 .

In some embodiments, the second flexible diagonal device 140 may be configured to be consistent with the structural solution of the first flexible diagonal device 240; details will not be described again here.

In some embodiments, the first axle box suspension device and the second axle box suspension device may adopt molded component products, which will not be described again here.

The joint vehicle set provided in this disclosure is provided with a middle bogie between the ends of two adjacent car bodies to simultaneously carry the two car bodies, and the end bogies at the head and tail achieve reliable shock absorption performance and resistance Rhombus stiffness, ease of installation and operation of the joint bogie, overall operational stability, and vehicle cornering ability.

Claims

An articulated vehicle set, including: a vehicle body arranged in sequence and an end joint bogie and a middle joint bogie arranged under the vehicle body;

The middle joint bogie is supported between two adjacent car bodies; and

Among the car bodies arranged in sequence, the ends of the two car bodies located at two ends that are away from each other are respectively supported by the end joint bogies.
The articulated vehicle set according to claim 1, wherein the middle articulated bogie includes: a first bolster component, a first central suspension device, a first side frame component, a first axle box suspension device, a first wheel pair Composed and a first flexible diagonal connecting device;

The first bolster assembly is connected to the first side frame assembly through the first central suspension device, and the first wheel pair assembly is connected to the first side frame assembly through the first axle box suspension device. , the first flexible diagonal connection device is integrally connected with the first side frame;

The first central suspension device includes: a first inner circular spring, a first outer circular spring, a first inner circular shock absorbing spring, a first outer circular shock absorbing spring and a first supporting wedge;

The first inner circular spring and the first outer circular spring are arranged on the first side frame component and are located below the end of the first bolster component, wherein the first inner circular spring is embedded in inside the first outer circular spring;

The first inner circle shock absorbing spring and the first outer circle shock absorbing spring are arranged on the first side frame component and located below the end of the first bolster component, wherein the first inner circle shock absorbing spring The shock absorbing spring is embedded in the first outer circular shock absorbing spring, and the first outer circular spring is arranged adjacent to the first outer circular shock absorbing spring; and

The first support wedge is disposed on the first cylindrical shock absorbing spring, and the first support wedge is contacted and supported on the bottom of the first bolster assembly.
The articulated vehicle set according to claim 2, wherein the first bolster consists of: a first bolster, a first side bearing, a side bearing mounting base and a first center plate wear disk;

The first center disc wear disc is arranged on the first bolster;

The first side bearing is arranged on the first bolster through the side bearing mounting seat, and two sets of the side bearing mounting seats are located on both sides of the center disc wear disk.
The articulated vehicle set according to claim 3, wherein the upper edge of the side bearing mounting base is the first Two sets of first side supports are provided in the width direction of the bolster.
The articulated vehicle set according to claim 3, wherein the first bolster component further includes: a first dust-proof ring;

The first dust ring is arranged outside the first core disc wear disc.
The articulated vehicle set according to claim 2, wherein the first side frame consists of: two first side frames arranged oppositely;

The two ends of the first bolster are respectively fixed between the two first side frames through the first central suspension device;

The first wheelset assembly is connected between the two first side frames through the first axle box suspension device;

The first flexible diagonal device connects between the two first side frames.
The articulated vehicle set according to claim 6, wherein the first flexible diagonal device includes: a first tie rod and a second tie rod that are cross-connected;

A first flexible diagonal connection seat is provided on the first side frame, and the first pull rod and the second pull rod are respectively connected between the two first flexible diagonal connection seats.
The articulated vehicle set according to claim 1, wherein the end joint bogie includes: a second bolster component, a second central suspension device, a second side frame component, a second axle box suspension device, a second wheel The pair consists of a second flexible diagonal connecting device;

The second bolster assembly is connected to the second side frame assembly through the second central suspension device, and the second wheelset assembly is connected to the second side frame assembly through the second axle box suspension device. , the second flexible diagonal connection device is connected to the second side frame;

The second central suspension device includes: a second inner circular spring, a second outer circular spring, a second inner circular shock absorbing spring, a second outer circular shock absorbing spring, a damper and a second supporting wedge;

The second inner circular spring and the second outer circular spring are arranged on the second side frame component and are located below the end of the second bolster component, wherein the second inner circular spring is embedded in inside the second outer circular spring;

The second inner circle shock absorbing spring and the second outer circle shock absorbing spring are arranged on the second side frame component and located below the end of the second bolster component, wherein the second inner circle shock absorbing spring The shock absorbing spring is embedded in the second outer circular shock absorbing spring, and the second outer circular spring is arranged adjacent to the second outer circular shock absorbing spring;

The damper is disposed between the second side frame assembly and the second bolster assembly; and

The second support wedge is disposed on the second cylindrical shock absorbing spring, and the second support wedge is contacted and supported on the bottom of the second bolster assembly.
The articulated vehicle set according to claim 8, wherein the damper is disposed between two sets of second outer circular shock absorbing springs.
The articulated vehicle set according to claim 9, wherein the damper is a spring damper.