CN213534847U

CN213534847U - Auxiliary frame of automobile

Info

Publication number: CN213534847U
Application number: CN202022551033.9U
Authority: CN
Inventors: 陈德强; 俞盼成; 马海龙
Original assignee: Suzhou Xuqiu Automobile Technology Co ltd
Current assignee: Suzhou Xuqiu Automobile Technology Co ltd
Priority date: 2020-11-06
Filing date: 2020-11-06
Publication date: 2021-06-25
Anticipated expiration: 2030-11-06

Abstract

The utility model relates to a car sub vehicle frame, it includes by the front beam, right side longeron, back crossbeam and left longeron according to the preface connection formation frame body, the front beam includes the crossbeam body and extends two first curved beam sections that form from the vertical upwards buckling in crossbeam body both ends, terminal surface all is assembled fixedly before two first curved beam sections has the bolster, the rear end of left side longeron, right side longeron all extends the curved beam section that forms of second, the curved beam section of second includes that the extension line direction that is close to the back crossbeam central line from the junction of left side longeron and back crossbeam is buckled and the flexion that the slope formed and by the flexion end extends the rake that forms to keeping away from the slope of back crossbeam direction. The utility model has the advantages that the second bent beam section is arranged, when the vehicle has serious frontal collision, the front auxiliary frame is extruded backwards passively, the longitudinal impact force generated by the collision of the bending part is bent around the mounting point, and part of the collision energy is absorbed in the bending process, so that the energy absorption and buffering effects are achieved; through setting up the bolster, furthest reduces the loss that the collision brought.

Description

Auxiliary frame of automobile

Technical Field

The utility model relates to an automobile body skeleton texture technical field, in particular to car sub vehicle frame.

Background

The car body is used as a main bearing structure for car collision, and has the functions of absorbing collision energy and dissipating collision force through reasonable deformation, so that the purpose of reducing the injury of passengers is achieved. Therefore, how to design the body framework structure to relieve or transfer destructive force becomes an important factor influencing the collision safety of the automobile. The front subframe is a part of the important structure of the vehicle, and is usually one of the force transmission paths of the frontal collision of the vehicle. Through the front auxiliary frame, a part of collision force can be conducted out from the lower part of the vehicle body, so that the collision force is dispersed, and the collision safety of the vehicle body is improved. The existing front auxiliary frame has the following defects: 1. the ability to absorb impact energy and dissipate impact forces is low, and the impact safety is low; 2. the existing automobile auxiliary frame structure is generally formed into a box type structure by sheet metal stamping parts, the product function is single, and the existing automobile auxiliary frame structure can only be assembled with a power assembly rear suspension and a front wheel left and right swing arm.

Therefore, it is necessary to provide a subframe for a vehicle to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a car sub vehicle frame to solve the lower problem of collision security that current front auxiliary frame exists.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a car sub vehicle frame, its includes front beam, rear frame member, left longitudinal beam and right longitudinal beam, the front beam right longitudinal beam the rear frame member with left longitudinal beam connects according to the preface and forms the frame body, the front beam include the crossbeam body and from the vertical upwards buckling in crossbeam body both ends extends two first curved beam sections that form, be equipped with front deck power assembly mount pad on the crossbeam body, be equipped with steering gear mount pad and front deck power assembly mount pad on the rear frame member, left side longitudinal beam be equipped with front wheel swing arm mount pad on the right longitudinal beam, two first curved beam section front end face all is fixed with the bolster, left side longitudinal beam the rear end of right longitudinal beam all extends and forms the curved beam section of second, the second curved beam section include certainly left side longitudinal beam with the junction department of rear frame member is close to the extension line direction of rear frame member central line is buckled and is leaned on the flexion that forms and by the flexion end is to keeping away from the rear frame member direction is terminal to keeping away from An inclined part formed by inclined extension.

The horizontal distance between the two inclined parts is gradually increased from the inner end to the outer end, and the minimum distance between the two inclined parts is larger than the length of the rear cross beam.

Two first curved beam section tip all is equipped with first mount pad, the rake is kept away from flexion one end is equipped with the second mount pad.

The buffer piece is of a stackable box body or pipe body structure, the inner side end face of the box body or the pipe body is fixed with the front end face of the first bent beam section, and the box body or the pipe body is provided with a plurality of organ folds.

The front wheel swing arm mounting seats are arranged on one side of the left longitudinal beam or one side of the right longitudinal beam at intervals side by side.

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

by arranging the second bent beam section, when the vehicle has serious frontal collision, the front auxiliary frame is passively extruded backwards, the bent part is continuously bent around the mounting point by longitudinal impact force generated by collision, part of collision energy is absorbed in the bending process, the energy absorption and buffering effects are realized, and various losses brought by collision are reduced to the maximum extent by matching with the front end buffer part;

before the front auxiliary frame is assembled with the lower vehicle body, a front cabin power assembly, a front wheel transmission shaft, a front wheel left and right swing arm, a front transverse stabilizer bar, a steering gear, a water pump, an air conditioner compressor and other core parts can be assembled off-line in advance, and finally, the front auxiliary frame is integrally assembled with the lower vehicle body, so that convenient installation conditions are brought for a final assembly process, the planning length of a final assembly production line is shortened, the use requirement on a site is lowered, and the cost input is reduced.

Drawings

FIG. 1 is a schematic view of an assembly structure of an auxiliary frame and a vehicle body of an automobile;

FIG. 2 is a perspective view of an automotive subframe;

FIG. 3 is a front view of the subframe of the vehicle of FIG. 2;

FIG. 4 is a top view of the subframe of the vehicle of FIG. 2;

FIG. 5 is a left side view of the subframe of the vehicle of FIG. 2.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Please refer to fig. 1 to 5, the utility model relates to a car sub vehicle frame, including frame body 10, frame body 10 is by front beam 1, rear frame member 2, left side longeron 3 and right longeron 4 are connected and are formed, front beam 1 includes the crossbeam body and extends two first curved beam sections 11 that form from the vertical upwards buckling in crossbeam body both ends, two first curved beam section front end faces, crossbeam body front end face all is fixed with bolster 5, the rear end of left side longeron 3 and right longeron 4 all extends formation second curved beam section 31, second curved beam section 31 includes the flexion 311 that bends and tilt up to the extension line direction that is close to rear frame member 2 central line and extends the rake 312 that forms to keeping away from rear frame member 2 direction slope by flexion 311 end. Specifically, the horizontal distance between the two inclined portions 312 gradually increases outward from the inner end, and the minimum distance between the two inclined portions 312 is greater than the length of the rear cross member 2.

The buffer parts 5 are selectively arranged according to application requirements, the fixed buffer parts 5 can be assembled on the front end faces of the two first bent beam sections and the front end face of the cross beam body at the same time, the fixed buffer parts can also be assembled on the front end faces of the two first bent beam sections, and the fixed buffer parts 5 can also be assembled on the front end faces of the cross beam body.

The front cross beam 1 and the rear cross beam 2 are parallel to each other, the left longitudinal beam 3 is vertically and fixedly connected with one end of the front cross beam 1 opposite to the rear cross beam 2, and the right longitudinal beam 4 is vertically and fixedly connected with the other end of the front cross beam 1 opposite to the rear cross beam 2.

The buffer piece 5 is of a foldable box body structure, the inner side end face of the box body is fixed with the front end face of the first bent beam section 11, a plurality of organ pleats 51 are arranged on the box body, the folding direction of the organ pleats 51 is perpendicular to the front end face of the first bent beam section 11, and the box body is formed by assembling two symmetrical half boxes 52. The buffer member 5 is not limited to the foldable box structure, and may be a tube structure.

When the vehicle has a frontal collision, the plurality of organ folds 51 are folded and are folded backwards, so that the impact energy is absorbed, the destructive power is consumed, the buffer effect is achieved, if the collision loss is small, only the buffer piece 5 needs to be detached and replaced during maintenance, the buffer piece 5 can be assembled with an anti-collision steel beam (cross beam) to be used together, and the better buffer effect is achieved.

In addition, the height of the end of the first bent beam section 11 exceeds the height of the end of the second bent beam section 31, the first mounting seats 111 are arranged at the two ends of the first bent beam section 11, the second mounting seats 313 are arranged at the end of the inclined part 312 far away from the bent part 311, and the front subframe is assembled with the lower vehicle body 20 through the two first mounting seats 111 and the two second mounting seats 313.

Referring to fig. 2, two front cabin power assembly mounting seats 12, a water pump mounting seat 13 and an air conditioner compressor mounting seat 14 are arranged on the front cross beam 1 at intervals, at least two steering gear mounting seats 21 are arranged on the rear cross beam 2, in this embodiment, two steering gear mounting seats 21 are symmetrically arranged on the rear cross beam 2, and a front cabin power assembly mounting seat is further arranged between the two steering gear mounting seats 21. At least two front wheel swing arm installation seats 32 and two stabilizer bar installation seats 33 are symmetrically arranged on the left longitudinal beam 3 and the right longitudinal beam 4, in this example, the number of the front wheel swing arm installation seats 32 is two, and the two front wheel swing arm installation seats 32 are arranged on one side of the left longitudinal beam 3 or the right longitudinal beam 4 side by side, and in other embodiments, the number is not limited to two.

Before the front auxiliary frame is assembled with the lower vehicle body 20, the front cabin power assembly, the front wheel transmission shaft, the front wheel left and right swing arms, the front transverse stabilizer bar, the steering gear, the water pump, the air conditioner compressor and other core components can be assembled off-line in advance, and finally, the front auxiliary frame is integrally assembled with the lower vehicle body, so that convenient installation conditions are brought to the final assembly process, the planning length of the final assembly production line is shortened, the use requirements on the site are lowered, and the cost input is reduced.

The utility model discloses a set up second camber beam section 31, when the vehicle takes place serious head-on collision, preceding sub vehicle frame extrudees backward passively, and the longitudinal impact force that the flexion 311 was hit the production continues to bend around the mounting point, absorbs partial striking energy in bending process, plays the effect of energy-absorbing buffering, and cooperation front end bolster 5 is together, various losses that bring when furthest's reduction was collided.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An automobile auxiliary frame is characterized in that: the frame comprises a front cross beam, a rear cross beam, a left longitudinal beam and a right longitudinal beam, wherein the front cross beam, the right longitudinal beam, the rear cross beam and the left longitudinal beam are sequentially connected to form a frame body, the front cross beam comprises a cross beam body and two first bent beam sections formed by vertically bending and extending upwards from two ends of the cross beam body, a front cabin power assembly mounting seat, a water pump mounting seat and an air conditioner compressor mounting seat are arranged on the cross beam body, a steering gear mounting seat and a front cabin power assembly mounting seat are arranged on the rear cross beam, a front wheel swing arm mounting seat and a transverse stabilizer bar mounting seat are arranged on the left longitudinal beam and the right longitudinal beam, a buffer part is fixed on the front end surface of the first bent beam section, the front end surface of the cross beam body or the front end surface of the first bent beam section or the front end surface of the cross beam body, and the rear ends of the left longitudinal beam and the right, the second camber beam section comprises a bending part and an inclined part, wherein the bending part is formed by bending and inclining upwards from the connecting point of the left longitudinal beam and the rear cross beam to the direction close to the extension line of the central line of the rear cross beam, and the inclined part is formed by obliquely extending the tail end of the bending part to the direction far away from the rear cross beam.

2. The vehicle subframe of claim 1 wherein: the horizontal distance between the two inclined parts is gradually increased from the inner end to the outer end, and the minimum distance between the two inclined parts is larger than the length of the rear cross beam.

3. The vehicle subframe of claim 2 wherein: two first curved beam section tip all is equipped with first mount pad, the rake is kept away from flexion one end is equipped with the second mount pad.

4. The vehicle subframe of claim 1 wherein: the buffer piece is of a stackable box body or pipe body structure, the inner side end face of the box body or the pipe body is fixed with the front end face of the first bent beam section, and the box body or the pipe 3 body is provided with a plurality of organ folds.

5. The vehicle subframe of claim 4 wherein: the box body is formed by assembling two symmetrical half boxes.

6. The vehicle subframe of claim 1 wherein: the front wheel swing arm mounting base is arranged on one side of the left longitudinal beam or the right longitudinal beam.