CN202368287U

CN202368287U - Torsion beam suspension torsion bar mounting structure

Info

Publication number: CN202368287U
Application number: CN2011205028151U
Authority: CN
Inventors: 王峰; 成亚南; 范幼清
Original assignee: Dongfeng Motor Corp
Current assignee: Dongfeng Motor Corp
Priority date: 2011-12-06
Filing date: 2011-12-06
Publication date: 2012-08-08
Anticipated expiration: 2021-12-06

Abstract

The utility model belongs to the technical field of automobile manufacturing, and in particular relates to a torsion beam suspension torsion bar mounting structure capable of effectively improving the durability and reliability of a torsion beam suspension. The torsion beam suspension torsion bar mounting structure comprises the torsion beam suspension consisting of a beam and a torsion bar which are parallelly arranged, and longitudinal arms arranged at two ends of the beam; mounting holes are formed on the longitudinal arms; two ends of the torsion bar are provided with mounting structures matched with inner walls of the mounting holes; and the mounting holes are rectangular holes or elliptical holes. The structure effectively solves the problem that welding seams are subjected to fatigue cracking under the action of torque in the working process of the torsion bar, so that the durability and reliability of the torsion beam are greatly improved; and the structure has the advantages that the structure is simple in structure and easy to implement.

Description

Torsion beam suspension torsion bar mounting structure

Technical field

The utility model belongs to car production manufacturing technology field, is specifically related to a kind of torsion beam suspension torsion bar mounting structure that can effectively improve torsion beam suspension useful life longevity and reliability.

Background technology

Torsion beam suspension is a present automobile rear overhang hanging hang structure commonly used, and the torsion beam that the crossbeam through a single-piece V-arrangement or channel section constitutes is the trailing arm solder together of the left and right sides.Advantages such as torsion beam suspension is because of having compact conformation, and it is convenient to manufacture, and cost is cheap relatively and be widely used in various manned vehicle.Suspension system is main in car load to play safety effect, if quality defects possibly cause serious safe consequence, so suspension endurance quality and unfailing performance are most important for car load safety.Torsion beam suspension mainly partly is made up of torsion beam, torsion bar, trailing arm etc., and torsion bar works vital function such as enough torsional stiffnesies and bending stiffness are provided in torsion beam suspension, in the prior art; All the time, all be through the welding process connection between torsion bar and trailing arm, also have a torsion bar anchor is installed between torsion bar and the trailing arm; The torsion bar two ends are welded on the torsion bar anchor; Torsion bar anchor is welded on the trailing arm, because the various vice propers that welding process exists are prone to the problem that shifts to an earlier date endurance failure; Cause torsion bar that enough rigidity can't be provided and cause the torsion beam suspension fatigue failure, the non-constant of durability and reliability.

Summary of the invention

The purpose of the utility model is in order to overcome the deficiency of prior art, to provide a kind of durability and reliability high torsion beam suspension torsion bar mounting structure.

For realizing above-mentioned purpose; A kind of torsion beam suspension torsion bar of the utility model design-calculated mounting structure; Comprise the torsion beam suspension that constitutes by crossbeam that is arranged in parallel and torsion bar, and the trailing arm that is installed in said crossbeam two ends, said trailing arm is provided with mounting hole; Said torsion bar two ends are provided with the mounting structure that matches with the inwall of mounting hole, and said mounting hole is rectangular opening or slotted eye.

Perhaps, said mounting hole adopts the female splines structure.

Said torsion bar also can be connected with trailing arm through torsion bar anchor, and said torsion bar anchor is provided with mounting hole, and the torsion bar two ends are provided with the mounting structure that matches with the inwall of this mounting hole, and said torsion bar anchor is fixed on the trailing arm.

The utility model changes the mode of traditional torsion beam suspension torsion bar and trailing arm welded and installed, and rectangle or ellipse are processed in the torsion bar two ends, perhaps is processed into the male splines structure; And mounting hole is set in the corresponding position of trailing arm; The torsion bar two ends cooperate installation with this mounting hole, efficiently solve weld seam fatigue cracking problem under the torsional interaction in the torsion bar working process, thereby have significantly promoted torsion beam durability and reliability; Have simple in structure, the advantage that is easy to realize.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the birds-eye view of Fig. 1;

Fig. 3 is that torsion bar cooperates the local structure scheme drawing of installing with torsion bar anchor;

Fig. 4 is the left view of Fig. 3;

Among the figure: 1-trailing arm, 2-crossbeam, 3-mounting hole, 5-torsion bar anchor, 6-torsion bar.

The specific embodiment

Below in conjunction with accompanying drawing and specific embodiment the utility model is done further to describe in detail:

Torsion beam suspension torsion bar mounting structure as depicted in figs. 1 and 2; Comprise the torsion beam suspension that constitutes by crossbeam that is arranged in parallel 2 and torsion bar 6; And the trailing arm 1 that is installed in said crossbeam two ends, trailing arm 1 is provided with mounting hole 3, and torsion bar 6 two ends are provided with the mounting structure that matches with the inwall of mounting hole 3; Mounting hole 3 is rectangular opening or slotted eye, and perhaps mounting hole 3 adopts the female splines structure.

In the specific embodiment, torsion bar 6 also is connected with trailing arm 1 through torsion bar anchor 5, on torsion bar anchor 5, is provided with mounting hole, and torsion bar 6 two ends are provided with the mounting structure that matches with the inwall of this mounting hole, consult shown in Fig. 3 and the Tu, and torsion bar anchor 5 is captiveed joint with trailing arm 1.

The utility model utilizes mounting hole 3 shapes that are provided with on torsion bar 6 ends and torsion bar anchor 5 or the trailing arm 1 to match, and has solved the problem that torsion beam torsion bar 6 weld seam fatiguabilities destroy, and not only technology is simple and reliable operation, good endurance.

Obviously; Those skilled in the art can carry out various changes and modification to the utility model and not break away from the spirit and the scope of the utility model; These conversion also belong within the scope of the utility model claim and equivalent technologies thereof, certainly the utility model also be intended to comprise these change and modification interior.

The content of not doing in this specification sheets to describe in detail belongs to this area professional and technical personnel's known prior art.

Claims

1. torsion beam suspension torsion bar mounting structure; Comprise the torsion beam suspension that constitutes by crossbeam that is arranged in parallel (2) and torsion bar (6); And the trailing arm (1) that is installed in said crossbeam two ends; It is characterized in that: said trailing arm (1) is provided with mounting hole (3), and said torsion bar (6) two ends are provided with the mounting structure that matches with the inwall of mounting hole (3), and said mounting hole (3) is rectangular opening or slotted eye.

2. torsion beam suspension torsion bar mounting structure according to claim 1 is characterized in that: said mounting hole (3) is the female splines structure.

3. torsion beam suspension torsion bar mounting structure according to claim 1 and 2; It is characterized in that: said torsion bar (6) is connected with trailing arm (1) through torsion bar anchor (5); Said torsion bar anchor (5) is provided with mounting hole; Torsion bar (6) two ends are provided with the mounting structure that matches with the inwall of this mounting hole, and said torsion bar anchor (5) is fixed on the trailing arm (1).