CN212605444U

CN212605444U - Structure based on 12 meters low-entrance full-bearing type structure urban passenger car beam assembly

Info

Publication number: CN212605444U
Application number: CN202021524544.5U
Authority: CN
Inventors: 朱前兵; 边东生; 王凯; 卢明军
Original assignee: Chery and Wanda Guizhou Bus Co Ltd
Current assignee: Chery and Wanda Guizhou Bus Co Ltd
Priority date: 2020-07-29
Filing date: 2020-07-29
Publication date: 2021-02-26
Anticipated expiration: 2030-07-29

Abstract

The utility model discloses a structure based on 12 meters low entry full-load type structure city passenger train crossbeam assembly, including entablature, bottom end rail, middle part stand and both sides bracing, the length of entablature is greater than the bottom end rail, and the entablature is parallel and parallel to be arranged and the axis is in same straight line with the bottom end rail, through a plurality of middle part stand fixed connection between the two, both sides bracing one end and entablature tip fixed connection, the other end and the tip fixed connection who corresponds the bottom end rail. This structure need not to carry out secondary machining to the material, and whole material utilization ratio is promoted by a wide margin, has reduced the material extravagant to novel structure passes through the middle part stand and forms the space with entablature and bottom end rail, and the aperture is greater than original hole cover, has greatly reduced overall structure's weight, fully satisfies lightweight designing requirement, and the pipeline of being convenient for arranges.

Description

Structure based on 12 meters low-entrance full-bearing type structure urban passenger car beam assembly

Technical Field

The utility model belongs to the technical field of a structure based on 12 meters low entry bears formula structure city passenger train crossbeam assembly entirely, concretely relates to passenger train part.

Background

In recent years, pure electric city buses with full-bearing type vehicle body structures are more and more in various cities in China, and the good performance of the full-bearing type vehicle body structures is widely accepted; adopt full bearing structure, make the driving of passenger train have agility, stationarity, travelling comfort and security more, in addition its humanized configuration, low emission, environmental protection ization, passenger space advantage such as big, the theory that embodies "science and technology that modern society advocated leads, people oriented" has made full bearing of the unique product advantage of passenger train, and its advantage is as follows:

1. the whole body of the whole vehicle adopts a closed ring structure, the whole body participates in load, the upper part and the lower part of the body structure form a whole, and when the body bears the load, the shell of the whole body reaches a stable balance state;

2. the strength and the rigidity of the whole vehicle are increased, the vehicle body framework has enough strength due to severe running conditions of urban buses, such as serious overload and frequent starting and braking, so that numerous domestic bus manufacturers cannot solve the problem, the passenger door upright columns are cracked successively after the vehicle runs for one or two years, and the problem can be effectively avoided by the fully-loaded vehicle body structure;

3. the comfort is good, and the noise is low; because the full-bearing vehicle body is used, all the connecting parts of the vehicle body and the underframe are welded to form a whole, no relative movement exists, no noise is generated, and a plurality of noise sources are reduced compared with other vehicle bodies;

4. the maximization of window glass, the same height and size uses the full-load automobile body, and side window glass can maximize, along with the acceleration of city construction, city beautification degree further improves, and city passenger train is mobile "viewing platform" again, more is favorable to appreciating city beauty scenery, and preceding shelves glass is bigger simultaneously, and the driver's field of vision is more open, has made things convenient for the operation.

Considering the characteristics of the overall structure of the fully-loaded vehicle body, the reliability of the overall structure of the fully-loaded vehicle body is ensured, and meanwhile, the local design structure is reasonably adjusted and optimized to achieve the advantage maximization, which is the subject of research.

At present, the structure of 12 meters low entrance full-load type structure city bus beam assembly, as shown in fig. 1, includes: the two-side flat plate, the cross beam, the two-side circular hole sleeves, the two-side oval hole sleeves and the middle oval hole sleeve; the cross beam adopts 1 rectangular tube with the specification of 60 multiplied by 160 multiplied by 5.0 and L =2398 (unit: mm); the specification of the round pipe hole sleeve is phi 70 multiplied by 5.0 (unit: mm); the specification of the oval hole sleeves on the two sides is 120 multiplied by 70 multiplied by 5.0 (unit: mm); the specification of the middle oval hole sleeve is 380 multiplied by 70 multiplied by 5.0 (unit: mm); the specification of the two side flat plates is 500 multiplied by 60 multiplied by 5.0 (unit: mm), and the components are welded together by adopting carbon dioxide arc welding

However, the structure is formed by welding flat plates after cutting corners on two sides of a large rectangular tube, inlaying and sleeving holes in the middle of the large rectangular tube, and each hole sleeve needs to be processed independently and then welded together.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the problem that will solve is: based on the characteristics of the full-load type vehicle body structure urban passenger car, the use requirement of the full-load type vehicle body structure urban passenger car in overload long-term operation is guaranteed by adjusting the overall design structure and the combination type of the cross beam, and the convenience and the light design target of the full-load type vehicle body structure urban passenger car in maintenance and use are improved to the ground.

The utility model adopts the technical proposal that:

the utility model provides a structure based on 12 meters low entry bears formula structure city passenger train beam assembly entirely, includes entablature, bottom end rail and middle part stand, the length of entablature is greater than the bottom end rail, and the entablature is parallel with the bottom end rail and arranges and the axis is in same straight line, through a plurality of middle part stand fixed connection between the two.

Through above-mentioned technical scheme, utilize entablature, bottom end rail and middle part stand to connect and constitute passenger train crossbeam assembly, there is the space between entablature and the bottom end rail, replaces the hole cover of original structure, not only reduces machining process, improves whole material utilization moreover and rates.

Furthermore, the number of the middle upright columns is 4, the middle upright columns are respectively and symmetrically arranged on the central axis of the upper cross beam and the central axis of the lower cross beam, and the two middle upright columns are respectively positioned at two ends of the lower cross beam; and a stable supporting structure is formed, the structural balance is kept, and the upper cross beam and the lower cross beam are completely connected.

Furthermore, the device also comprises two side inclined struts, wherein one end of each side inclined strut is connected with the end part of the upper cross beam, and the other end of each side inclined strut is connected with the corresponding end part of the lower cross beam; the integral strength of the structural welding assembly is ensured.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model is formed by welding rectangular pipes, has high blanking efficiency, does not need to carry out secondary machining on materials, greatly improves the utilization rate of the whole materials, reduces the material waste, reduces the manufacturing cost, and the novel structure forms a space with an upper cross beam and a lower cross beam through a middle upright post, has a hole diameter larger than that of the original hole sleeve, greatly reduces the weight of the whole structure, fully meets the design requirement of light weight, and is convenient for pipeline arrangement;

2. the inclined struts on two sides are arranged on the two sides of the upper cross beam and the lower cross beam, so that the overall strength of the novel-structure welding assembly is guaranteed, and the novel-structure welding assembly can be well connected with a side wall framework of a whole vehicle body;

3. the utility model discloses compact structure, preparation convenience, the bulk strength is high, and the practicality is high.

Drawings

FIG. 1 is a schematic view of an overall structure of a conventional cross beam;

fig. 2 is a schematic structural diagram of the present invention.

Detailed Description

The invention will be further explained with reference to the drawings attached to the specification in order to facilitate better understanding by those skilled in the art.

A structure based on a 12-meter low-entrance full-bearing type structure urban passenger car beam assembly comprises an upper beam 1, a lower beam 2, a middle upright post 3 and two side inclined struts 4.

The upper cross beam 1 adopts 1 rectangular pipe with the specification of 50 multiplied by 60 multiplied by 3.0 (unit: mm), the lower cross beam 2 adopts 1 rectangular pipe with the specification of 40 multiplied by 60 multiplied by 3.0 (unit: mm), the middle upright post 3 comprises 4 rectangular pipes with the specification of 60 multiplied by 3.0 (unit: mm), and the inclined struts 4 at two sides are 2 rectangular pipes with the specification of 50 multiplied by 60 multiplied by 3.0 (unit: mm).

The upper beam 1 and the lower beam 2 are arranged in parallel, the central axis is in the same straight line, two middle upright columns 3 are respectively positioned at two ends of the lower beam 2 and welded with the upper beam 1 and the lower beam 2, the strength and the balance of the structure are fully ensured, and the other two middle upright columns 3 are respectively positioned in the middle of the middle upright columns 3 of the central axis and the end part, so that the strength of the middle part of the upper beam 1 is enhanced, and the stress is uniform. The upper beam 1, the lower beam 2 and the middle upright post 3 form a space larger than the aperture of the hole sleeve with the existing structure, secondary machining procedures (the circular hole sleeve and the oval hole sleeve) are not reduced to the greatest extent, the material utilization rate is improved, the material waste is reduced, the weight of the whole structure is reduced, the light design requirement is met, and meanwhile, the pipeline arrangement is facilitated.

One end of each inclined strut 4 on the two sides is welded with the end part of the upper cross beam 1, and the other end of each inclined strut is welded with the end part of the corresponding lower cross beam 2, so that the overall strength of a welding assembly is guaranteed, and the side wall frameworks of the automobile body are well connected.

The welding modes adopt carbon dioxide arc welding for welding.

The above-described embodiments are merely illustrative of the preferred embodiments of the present invention and do not limit the scope of the present invention. Without departing from the spirit and principles of the present invention, various modifications and improvements of the technical solution of the present invention will be considered by those skilled in the art within the scope of the present invention as defined in the appended claims.

Claims

1. The utility model provides a structure based on 12 meters low entry bears formula structure city passenger train crossbeam assemblies entirely which characterized in that: the novel horizontal type beam forming machine comprises an upper cross beam (1), a lower cross beam (2) and middle upright columns (3), wherein the length of the upper cross beam (1) is larger than that of the lower cross beam (2), the upper cross beam (1) and the lower cross beam (2) are arranged in parallel, central axes of the upper cross beam and the lower cross beam are in the same straight line, and the upper cross beam and the lower cross beam are fixedly connected through the middle upright columns (3).

2. The structure of a 12 m low-entrance full-load structure-based beam assembly of an urban passenger car according to claim 1, wherein: the number of the middle upright columns (3) is 4, the middle upright columns are symmetrically arranged on the central axes of the upper cross beam (1) and the lower cross beam (2), and the two middle upright columns (3) are respectively positioned at two ends of the lower cross beam (2).

3. The structure of a 12 m low-entrance full-load structure-based beam assembly of an urban passenger car according to claim 1, wherein: the novel connecting device is characterized by further comprising two side inclined struts (4), wherein one ends of the two side inclined struts (4) are connected with the end part of the upper cross beam (1), and the other ends of the two side inclined struts are connected with the end part of the corresponding lower cross beam (2).