CN217260292U

CN217260292U - Rear-end chassis structure in passenger train

Info

Publication number: CN217260292U
Application number: CN202220960385.6U
Authority: CN
Inventors: 刘义智; 唐文生; 汤庆华; 房坚
Original assignee: Yangzhou Yaxing Motor Coach Co ltd
Current assignee: Yangzhou Yaxing Motor Coach Co ltd
Priority date: 2022-04-22
Filing date: 2022-04-22
Publication date: 2022-08-23
Anticipated expiration: 2032-04-22

Abstract

The utility model belongs to the technical field of bear the chassis entirely, especially, relate to a back end chassis structure in passenger train. The back assembly is connected with the middle assembly in a front-back mode, the upper surface of the back assembly is inclined downwards close to the first end of the middle assembly, and the first end of the back assembly and the middle assembly form a first-stage step. The utility model is used for solve inconvenient problem about passenger train rear axle platform.

Description

Rear-end chassis structure in passenger train

Technical Field

The utility model belongs to the technical field of the passenger train chassis, especially, relate to a back end chassis structure in passenger train.

Background

The underframe of the passenger car belongs to the base body of the whole passenger car, and most of components and assemblies of the light passenger car are fixed in position through the underframe, such as an engine, a transmission system, a suspension, a steering system, a car body and related control mechanisms. The underframe is used for supporting and connecting parts of the light bus and bearing various loads from the inside and the outside of the bus.

At present, the well back end of passenger train chassis links up the part and has higher difference in height usually, for the convenience is current for the visitor from beginning to end, and the chassis middle part of this back end can form the second grade of indent usually and mark time, makes things convenient for the passenger to pass from top to bottom, but the second grade of indent formation mark time the part space that can occupy the rear axle platform, leads to the unable people of standing at this place, and the second grade is marked time and is passed efficiency lower from top to bottom simultaneously, and older old man or the less children of age are inconvenient from top to bottom.

SUMMERY OF THE UTILITY MODEL

The technical problem that this application embodiment will solve lies in overcoming prior art not enough, provides a back end chassis structure in passenger train for solve passenger train rear axle platform inconvenient problem from top to bottom.

The technical scheme for solving the technical problems in the embodiment of the application is as follows: a rear section chassis structure in passenger car, it includes: a middle section assembly;

the rear assembly, with the middle section assembly is connected from beginning to end, the rear assembly upper surface is close to the first end downward sloping of middle section assembly, just the first end of rear assembly with the middle section assembly forms the one-level and marks time.

Compared with the prior art, the technical scheme has the following beneficial effects:

set up to the front end downward sloping through with the back end assembly for set up to the one-level with middle section assembly linking department and mark time, not only can improve and to have better area of standing on the platform of back end assembly surface formation, mark time conventional second grade simultaneously and change into the one-level and mark time, not only improve the current efficiency of the visitor from top to bottom at here, old and young passenger experience is comparatively friendly when passing from top to bottom.

Further, the rear assembly includes: the front end of the rear platform framework and the middle section assembly form a first-stage step;

and the hubcap frameworks are symmetrically connected to two sides of the rear platform framework.

Further, the rear platform armature comprises:

the frame type structure comprises at least two cross beams arranged at intervals and at least two longitudinal beams arranged at intervals;

the front vertical support is connected to the bottom of the front end of the frame-shaped structure;

the rear vertical support is connected to the bottom of the rear end of the frame-shaped structure;

the height of the rear vertical support is greater than that of the front vertical support.

Further, still include: the horizontal supporting rod is positioned below the frame-shaped structure;

the two short vertical supports are vertically arranged at the front end and the rear end of the horizontal support rod, and the tops of the short vertical supports are connected with the frame-shaped structure;

one end of each first inclined strut is connected to the bottom of the horizontal supporting rod, the other end of each first inclined strut is connected to the bottom of the front vertical strut or the bottom of the rear vertical strut, and the middle of each first inclined strut is connected with the bottom of the short vertical strut.

The reinforced structure formed by the horizontal support rod, the short vertical support and the first inclined support is arranged at the bottom of the frame structure, so that the whole platform framework is reinforced, and the structural strength of the platform framework and the hubcap framework is improved.

Furthermore, two second inclined struts are respectively arranged on the left side and the right side of the joint of the middle section assembly and the rear section assembly.

The second inclined strut arranged at the joint of the middle assembly and the rear assembly improves the connecting strength of the two assemblies.

Further, the height of the first-level step is not higher than 25 cm.

Further, the slope of the rear assembly does not exceed 8%.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of an overall front view structure according to an embodiment of the present invention.

Fig. 2 is a schematic top view of the structure of fig. 1.

Fig. 3 is a left side view of the structure of fig. 1.

Reference numerals:

1. a middle section assembly;

2. a rear section assembly;

21. a rear platform skeleton; 22. a hubcap skeleton;

211. a frame-shaped structure; 212. front vertical bracing; 213. back vertical bracing;

214. a horizontal support bar; 215. short vertical braces; 216. a first diagonal brace;

3. a second diagonal brace;

4. a cross beam; 5. a stringer.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.

In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate a number of the indicated technical features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Examples

As shown in fig. 1 and 3, the embodiment of the utility model provides a back end chassis structure in passenger train, it includes: a middle assembly 1 and a rear assembly 2.

Back end assembly 2 with connect around the middle section assembly 1, back end assembly 2 upper surface is close to the first end downward sloping of middle section assembly 1, just the first end of back end assembly 2 with middle section assembly 1 forms the one-level and marks time.

Specifically, the height that the one-level was marked time is not higher than 25cm, and the height setting that will mark time is in suitable scope, avoids the one-level to mark time too high, influences the passenger and passes from top to bottom.

Specifically, the slope of the rear assembly 2 is not more than 8%, that is, when the height difference between two places with a front-back spacing of 100m on the surface of the rear assembly 2 is not more than 8m, it is ensured that the surface of the whole rear assembly 2 is not too inclined, which may affect the standing of passengers.

Set up to the front end downward sloping through with back end assembly 2 for set up to the one-level with the 1 linking department of middle section assembly and mark time, not only can improve and to have better area of standing on the platform of 2 surperficial formations of back end assembly, mark time conventional second grade simultaneously and change into the one-level and mark time, not only improve the current efficiency of the visitor from top to bottom at here, old and young passenger experience is comparatively friendly when passing from top to bottom.

Wherein, the back end assembly 2 includes: back platform skeleton 21 and hubcap skeleton 22, the front end of back platform skeleton 21 with middle section assembly 1 forms the one-level and marks time, two hubcap skeletons 22 symmetric connection in back platform skeleton 21 both sides.

Specifically, the rear platform skeleton 21 includes: frame-type structure 211, front vertical braces 212 and rear vertical braces 213.

Frame type structure 211 includes two crossbeams 4 that the interval set up and two longerons 5 that the interval set up, preceding vertical braces 212 connect in frame type structure 211 front end bottom, back vertical braces 213 connect in frame type structure 211 rear end bottom, wherein, back vertical braces 213 height is greater than preceding vertical braces 212.

The hubcap framework 22 is arranged on the outer two sides of the two longitudinal beams 5 in the frame-shaped structure 211, the two outer ends of the two cross beams 4 extend outwards to form a space with the two longitudinal beams 5 to contain the hubcap framework 22 in the space, and the hubcap framework 22 and the frame-shaped structure 211 can be connected together in a welding mode, so that the overall structural strength is improved.

In this embodiment, the method further includes: horizontal support bar 214, two short erects and props 215 and two first bracing 216, horizontal support bar 214 are located under frame type structure 211, two short erects and props 215 vertical set up in both ends around horizontal support bar 214, short erects and props 215 the top with frame type structure 211 is connected, the one end of two first bracing 216 connect in horizontal support bar 214 bottom, the other end connect in the bottom of preceding erector 212 or back erector 213, first bracing 216 middle part with short erector 215 bottom is connected.

The reinforcing structure formed by the horizontal support bar 214, the short vertical brace 215 and the first diagonal brace 216 is arranged at the bottom of the frame structure 211, and is used for reinforcing the whole platform framework and improving the structural strength of the platform framework and the hubcap framework 22.

As shown in fig. 2, two second inclined struts 3 are respectively disposed on the left and right sides of the joint of the middle assembly 1 and the rear assembly 2, and the second inclined struts 3 disposed at the joint of the middle assembly 1 and the rear assembly 2 improve the strength of the joint of the two assemblies.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. The utility model provides a rear end chassis structure in passenger train which characterized in that includes: a middle section assembly;

the back end assembly, with connect around the middle section assembly, back end assembly upper surface is close to the first end downward sloping of middle section assembly, just the first end of back end assembly with the middle section assembly forms the one-level and marks time.

2. The passenger vehicle mid-rear chassis structure according to claim 1, wherein the rear assembly includes: the front end of the rear platform framework and the middle section assembly form a first-stage step;

3. The passenger vehicle mid-rear section undercarriage structure of claim 2, wherein the rear platform frame comprises:

4. The middle rear chassis structure of a passenger vehicle according to claim 3, further comprising: the horizontal supporting rod is positioned below the frame-shaped structure;

and one end of each of the two first inclined struts is connected to the bottom of the horizontal supporting rod, the other end of each of the two first inclined struts is connected to the bottom of the front vertical strut or the bottom of the rear vertical strut, and the middle parts of the first inclined struts are connected with the bottoms of the short vertical struts.

5. The middle-rear underframe structure of claim 1, wherein two second diagonal braces are respectively arranged on the left side and the right side of the joint of the middle assembly and the rear assembly.

6. The middle-rear underframe structure for passenger cars according to claim 1, characterized in that the height of the primary step is not higher than 25 cm.

7. The passenger vehicle mid-rear underframe structure of claim 1, wherein the slope of the rear assembly is no more than 8%.