CN214648557U

CN214648557U - Commercial car frame assembly

Info

Publication number: CN214648557U
Application number: CN202120474249.1U
Authority: CN
Inventors: 杨叶成; 常建军; 袁胜利; 曹景攀
Original assignee: China National Heavy Duty Truck Group Jinan Power Co Ltd
Current assignee: Sinotruk Jinan Power Co Ltd; China National Heavy Duty Truck Group Jinan Power Co Ltd
Priority date: 2021-03-05
Filing date: 2021-03-05
Publication date: 2021-11-09
Anticipated expiration: 2031-03-05

Abstract

In order to solve the poor, heavier scheduling problem of dead weight of frame bearing capacity, the utility model provides a commercial car frame assembly mainly includes left longeron, right longeron, bracket beam, tubular beam, bottom stiffening beam, front beam, rear beam and tail beam, and bracket beam, tubular beam, front beam, rear beam, tail beam distribute in proper order from the front to the back between left longeron and right longeron, the tubular beam is U type structure, equal fixedly connected with reinforcing plate on the upper and lower pterygoid lamina of left side longeron and right longeron, link to each other through the tail beam connecting plate is fixed between left side longeron and right longeron and the tail beam, both can satisfy the intensity demand of frame, can compromise lightweight, modular designing requirement again.

Description

Commercial car frame assembly

Technical Field

The utility model relates to the technical field of vehicles, in particular to commercial car frame assembly.

Background

At present commercial car frame assembly structure is mainly for being applicable to the operating mode of heavily loaded, and the structure is comparatively complicated, and the structure homogenization is serious, and frame self weight is heavier, can't satisfy present vehicle lightweight, modular requirement. In addition, some frame structures too pursue the lightweight, cause the usage single, can't satisfy the demand of compound operating mode. Patent CN110228526A designs a light-weight frame, which realizes light-weight structure, but the frame has poor torsion resistance, is only suitable for light load, and cannot meet heavy load requirements; patent CN 110843920A's frame has adopted double-deck frame, and although bearing capacity has the promotion, the frame dead weight increases, and tail boom department does not have the reinforcing plate of integral type to connect, causes tail boom department frame intensity inadequately easily, has the tearing risk of distortion.

Disclosure of Invention

In order to solve the problem, the utility model provides a commercial car frame assembly, the technical scheme of adoption as follows:

the utility model provides a commercial car frame assembly which characterized in that mainly includes left longeron, right longeron, bracket roof beam, tubular roof beam, bottom stiffening beam, front beam, rear beam and tail beam, bracket roof beam, tubular roof beam, front beam, rear beam, tail beam distribute in proper order from front to back between left longeron and right longeron, tubular roof beam is the U type structure, all fixedly connected with reinforcing plate on the upper and lower pterygoid lamina of left longeron and right longeron, pass through the fixed connection of tail beam connecting plate between left longeron and right longeron and the tail beam.

Preferably, saddle connecting plates are fixedly connected to the outer sides of the rear parts of the left longitudinal beam and the right longitudinal beam.

Preferably, the tail beam connecting plate is fixedly connected with the reinforcing plate.

Preferably, the front cross beam body is of a structure with an upper surface and a horizontal lower surface which are concave upwards.

Preferably, two ends of the bottom reinforcing beam are fixedly connected with the left longitudinal beam and the right longitudinal beam through the mounting seats, and the bottom reinforcing beam is integrally in a U-shaped structure and is located below the left longitudinal beam and the right longitudinal beam.

The beneficial effects of the utility model reside in that: compared with the traditional lightweight frame, the reinforced plate is added, the mechanical property of the frame can be effectively improved, the stress borne by the frame is reduced, the bearing capacity of the frame is greatly improved, and meanwhile, compared with a double-layer frame, the design of the upper reinforced plate and the lower reinforced plate can effectively reduce the self weight of the frame and improve the fuel economy of the whole vehicle; the tail beam connecting plate is of a stamping integrated structure and is used for connecting the frame and the tail beam, so that the strength of the tail beam part of the frame can be effectively improved, and the cracking risk of the frame is reduced; the bottom stiffening beam is connected with the longitudinal beam through the support, so that the torsion resistance of the frame can be improved, the assembly difficulty can be reduced, and the assembly manufacturability of the frame is improved.

Drawings

FIG. 1 is a schematic view of the structure of the present invention

FIG. 2 is a schematic view of a tail beam connection plate

The structure comprises 1-bracket beam, 2-tubular beam, 3-left longitudinal beam, 4-right longitudinal beam, 5-lower reinforcing plate, 6-upper reinforcing plate, 7-bottom reinforcing beam, 8-front beam, 9-rear beam, 9-saddle connecting plate, 10-tail beam and 11-tail beam connecting plate.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description of the present invention, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

The commercial vehicle frame assembly shown in fig. 1-2 mainly comprises a left longitudinal beam 3 and a right longitudinal beam 4, the cross sections of which are of C-shaped structures and are composed of webs and upper and lower wing plates fixedly connected to the upper and lower ends of the webs, a bracket beam 1, a tubular beam 2, a front cross beam 8, a rear cross beam 9 and a tail beam 11 are sequentially arranged between the left longitudinal beam 3 and the right longitudinal beam 4 from front to back, the bracket beam 1 is fixedly connected to the front ends of the left longitudinal beam 3 and the right longitudinal beam 4, the tubular beam 2 is of a U-shaped concave tubular structure, the upper surface of the front cross beam 8 is horizontal, the lower surface of the front cross beam 8 is concave, so that the bracket beam is matched with other structures during installation and saves space, a bottom reinforcing beam 7 is arranged between the tubular beam 2 and the front cross beam 8, the bottom reinforcing beam 7 is of a U-shaped structure, the left end and the right end are respectively fixedly connected with the outer side surfaces of the left longitudinal beam 3 and the right longitudinal beam 4 through supports, the left longitudinal beam 3 and the right longitudinal beam 4 through the supports, and the left longitudinal beam 3, The rear end of the right longitudinal beam 4 is fixedly connected with a tail beam 11 through a tail beam connecting plate 12, an upper reinforcing plate 6 and a lower reinforcing plate 5 are respectively and fixedly connected to the lower surface of an upper wing plate and the upper surface of a lower wing plate of the left longitudinal beam 3 and the right longitudinal beam 4, and a saddle connecting plate 10 is respectively and fixedly connected to the outer side face of the rear part of a web plate of the left longitudinal beam 3 and the right longitudinal beam 4.

In addition, as shown in fig. 2, the tail connecting plate 12 is of a stamped integrated structure, the cross section of the tail connecting plate is of a 7-shaped structure, the front and rear parts of the upper end surface of the tail connecting plate 12 are respectively fixed with the upper reinforcing plate 6 and the tail beam 11, and the side plates of the two connecting plates 12 are fixedly connected with the web plates of the left longitudinal beam 3 and the right longitudinal beam 4.

The utility model discloses a reinforcing plate about setting up reduces the frame stress that receives, improves frame bearing capacity, and bottom stiffening beam 7 is fixed through support and frame, improves the antitorque characteristic of frame, reduces the assembly degree of difficulty simultaneously, and tail connecting plate 12 adopts punching press integral type structural connection frame and tail 11, has effectively improved the intensity of frame tail 11 part, reduces the frame fracture risk, and fixed connection improves overall structure intensity between tail connecting plate and the last reinforcing plate moreover.

The above description is only a preferred embodiment of the present invention, and it should be noted that: for those skilled in the art, without departing from the principle of the present invention, several improvements can be made, and these improvements should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a commercial car frame assembly which characterized in that mainly includes left longeron, right longeron, bracket roof beam, tubular roof beam, bottom stiffening beam, front beam, rear beam and tail beam, bracket roof beam, tubular roof beam, front beam, rear beam, tail beam distribute in proper order from front to back between left longeron and right longeron, tubular roof beam is the U type structure, all fixedly connected with reinforcing plate on the upper and lower pterygoid lamina of left longeron and right longeron, pass through the fixed connection of tail beam connecting plate between left longeron and right longeron and the tail beam.

2. The commercial vehicle frame assembly of claim 1 wherein a saddle attachment plate is further fixedly attached to the outboard rear portions of the left and right side rails.

3. The commercial vehicle frame assembly of claim 1, wherein the tail connecting plate is fixedly connected to the reinforcing plate.

4. The commercial vehicle frame assembly of claim 1, wherein the front cross member body is configured such that an upper surface thereof is horizontally concave and a lower surface thereof is concave.

5. The commercial vehicle frame assembly according to claim 1, wherein the bottom reinforcing beam is fixedly connected with the left longitudinal beam and the right longitudinal beam through mounting seats at two ends, and the bottom reinforcing beam is of a U-shaped structure as a whole.