CN203198669U

CN203198669U - Automobile torsion beam semi-independent back suspension frame

Info

Publication number: CN203198669U
Application number: CN 201320113642
Authority: CN
Inventors: 赵亮; 胡少君; 张宝霞
Original assignee: LIUZHOU KONGHUI AUTOMOBILE TECHNOLOGY Co Ltd
Current assignee: LIUZHOU KONGHUI AUTOMOBILE TECHNOLOGY Co Ltd
Priority date: 2013-03-13
Filing date: 2013-03-13
Publication date: 2013-09-18
Anticipated expiration: 2023-03-13

Abstract

The utility model relates to an automobile torsion beam semi-independent back suspension frame which is of a detachable structure. The automobile torsion beam semi-independent back suspension frame comprises a torsion beam seaming piece, a torsion bar seaming piece and a torsion bar stabilizing piece. The torsion beam seaming piece is formed by a longitudinal arm, a hub support, a spring base, a transverse beam and a transverse beam reinforcing plate which are integrally welded, and a welding nut is arranged on the transverse beam reinforcing plate. The torsion bar seaming piece comprises a torsion bar, torsion bar supports located at the two ends of the torsion bar and two padding discs located in the middle of the torsion bar, wherein the torsion bar, the torsion bar supports and the two padding discs located in the middle of the torsion bar are integrally connected in a welding mode, and two welding nuts are arranged on the torsion bar supports. An opening is formed in one side of the torsion bar stabilizing piece, the torsion bar stabilizing piece is clamped into the position between the two padding discs located in the middle of the torsion bar, and the torsion bar stabilizing piece cannot move in a left-and-right mode. The torsion bar seaming piece assembled with the torsion bar stabilizing piece is assembled on the transverse beam of the torsion beam seaming piece through two bolts and assembled on the transverse beam reinforcing plate through one bolt, and the automobile torsion beam semi-independent back suspension frame is detachable and favorable for debugging on torsion beam performance and replacement of the torsion bar which can be easily damaged.

Description

The semi-independent rear suspension of automobile torsion beam

Technical field

The utility model relates to the independent rear suspension mechanism of vehicle, particularly the semi-independent rear suspension of a kind of detouchable automobile torsion beam.

Background technology

Torsion beam semi-independent suspension is rear overhang hanging hang structure commonly used at present, have simple in structure, cost is low, the advantage such as take up room little, the torsion beam that V-type by an integral body or the crossbeam of U-shaped section consist of is the trailing arm weld together of both sides, and the front end of trailing arm is connected with vehicle body by lining, and the wheel hub holder that is welded on the trailing arm rear end links to each other with wheel hub, shock absorber links to each other with trailing arm by bolt, and spring fitting is on being welded on trailing arm and turning round spring perch between the beam.The trailing arm of torsion beam can swing up and down around the front end lining, spring works the various force and moments that transmit between vehicle body and the wheel, main bearing load, relax and impact, and by the shock absorber damped vibration, guarantee ride of vehicle, when the both sides Suspension Deformation does not wait, the torsion beam torsional deflection can play the effect of stabilizer antiroll bar, angle of roll and the Traverse angular vibration of vehicle body when reducing turning driving.Torsion beam is the critical component of torsion beam semi-independent suspension, play power transmission, stressed effect with being connected the balance both sides, the size of its torsional stiffness, have influence on the roll rate of torsion beam semi-independent suspension, in order to increase the roll rate of torsion beam, to guarantee the handling stability of torsion beam, mostly need below crossbeam, to increase a torsion bar, particularly V-type crossbeam.

The existing semi-independent rear overhang structure of torsion beam is illustrated in figure 1 as left and right symmetrical part, is welded by trailing arm 101a, wheel hub holder 102a, spring perch 103a, torsion bar anchor 104a, torsion bar 105a, crossbeam 106a; In making proof procedure, there is following problem in this structure:

1) after the structure of the semi-independent rear overhang of torsion beam is generally determined; usually use the size of changing the torsion bar diameter and adjust the roll rate of the semi-independent rear overhang of torsion beam; in order to reach required automobile operation performance; but because torsion bar directly is welded on the torsion beam; if change the roll rate of torsion beam; just must integral body change torsion beam, cost of idleness and time.

2) in road examination process, in order to guarantee safety, generally be designed to torsion bar and rupture first, because torsion bar is welded on the torsion beam, after the torsion bar fracture, torsion beam needs integral replacing, maintenance cost is high.

3) automobile in the process of moving because torsion bar is long, the stressed complexity of torsion bar, easily sealing-off, fracture and exciting.

Summary of the invention

The purpose of this utility model is to provide a kind of and is convenient to dismantle and with the semi-independent rear suspension of the automobile torsion beam of torsion bar stabilizing device, the torsion beam torsion bar of the semi-independent rear suspension of this automobile torsion beam directly is not welded on the torsion beam, on torsion beam, be convenient to dismounting by bolts assemblies; With torsion bar stabilizing device make torsion bar be not easy at work sealing-off, fracture, vibration; The problems referred to above that exist to solve prior art.

The technical scheme of dealing with problems is: the semi-independent rear suspension of a kind of automobile torsion beam, be demountable structure, and comprise torsion beam soldering member, torsion bar soldering member and torsion bar stabilizing member;

Described torsion beam soldering member comprises crossbeam, is positioned at the trailing arm at crossbeam two ends, takes turns hub holder, spring perch, end, described crossbeam two ends has two holes and is connected with a crossbeam brace panel, crossbeam, the trailing arm that is positioned at the crossbeam two ends, wheel hub holder, spring perch and crossbeam brace panel link into an integrated entity by welding manner, are fixed with welded nut on its center member brace panel;

Described torsion bar soldering member comprises torsion bar, be positioned at the torsion bar anchor at torsion bar two ends and be positioned at 2 discs at torsion bar middle part, and torsion bar, torsion bar anchor and 2 discs that are positioned at the torsion bar middle part link into an integrated entity by welding manner, wherein on the torsion bar anchor Fixing2 welded nuts are arranged;

Described torsion bar stabilizing member has opening on one side, snaps between two discs in torsion bar middle part by this opening, and the torsion bar stabilizing member can not sway;

2 bolts assemblies of the torsion bar soldering member that is equipped with the torsion bar stabilizing member by torsion bar anchor on the crossbeam of torsion beam soldering member, 1 bolts assemblies is on the crossbeam brace panel.

Its further technical scheme is: described torsion bar stabilizing member is Rubber Parts, structure triangular in shape, the centre has the circular hole by torsion bar, with torsion bar be interference fit; There is opening on one side that described torsion bar stabilizing member contacts with crossbeam, with described crossbeam interference fit, by press fit on torsion bar.

Because the semi-independent rear suspension of automobile torsion beam of the utility model is demountable structure, torsion beam soldering member, torsion bar soldering member and torsion bar stabilizing member by separate structure are assembled, so the semi-independent rear suspension of the utility model automobile torsion beam has following beneficial effect:

1. the torsion bar soldering member that is welded as a whole separately of torsion bar, torsion bar anchor, pad is convenient to the shot-peening application, and it is carried out first electrophoretic painting, refills and joins the torsion bar stabilizing member, can effectively guarantee torsion bar and support life-span thereof.

2. the torsion bar stabilizing member is assemblied on the torsion bar soldering member by the mode of extruding, is convenient to assembly and disassembly, has reduced torsion bar twisting stress and exciting; And guarantee that described torsion bar stabilizing member can not come off in the work such as torsion beam distortion.

3. the torsion bar soldering member is bolted on the crossbeam of torsion beam soldering member, is convenient to change torsion bar, and processing is simple, cost is low.

4. torsion bar stabilizing device is simple in structure, and is easy to process, and cost is low, can control torsion beam mode by actv., avoided torsion bar in the course of the work sealing-off, fracture and vibration.

Be described further below in conjunction with the technical characterictic of drawings and Examples to the semi-independent rear suspension of automobile torsion beam of the utility model.

Description of drawings

Fig. 1: the existing semi-independent rear suspension structure of automobile torsion beam (left side) schematic diagram;

Fig. 2: the semi-independent rear suspension structure of the utility model automobile torsion beam (left side) schematic diagram;

Fig. 3: torsion beam frame member seam member structure (left side) schematic diagram;

Fig. 4: torsion bar frame member seam member structure (left side) schematic diagram;

Fig. 5: torsion bar frame member seam member structure (left side) schematic diagram that is equipped with the torsion bar stabilizing member;

Fig. 6: torsion bar stabilizing member structure and assembling schematic diagram thereof.

Among Fig. 2-6:

1-torsion beam soldering member, 101-trailing arm, 102-wheel hub holder, 103-spring perch, 104-crossbeam brace panel, 105-crossbeam;

2-torsion bar soldering member, 201-torsion bar, 202-torsion bar anchor, 203-disc;

3-torsion bar stabilizing member, 301-be by the circular hole of torsion bar, the 302-opening.

Among Fig. 1:

101a-trailing arm, 102a-wheel hub holder, 103a-spring perch, 104a-torsion bar anchor, 105a-torsion bar, 106a-crossbeam.

The specific embodiment

The semi-independent rear suspension of a kind of automobile torsion beam, as shown in Figure 2, the semi-independent rear suspension of this automobile torsion beam comprises torsion beam soldering member 1, torsion bar soldering member 2 and torsion bar stabilizing member 3 for for demountable structure;

Described torsion beam soldering member 1 comprises crossbeam 105, is positioned at the trailing arm 101 at crossbeam two ends, takes turns hub holder 102, spring perch 103, end, described crossbeam two ends has two holes and is connected with a crossbeam brace panel 4, crossbeam, the trailing arm that is positioned at the crossbeam two ends, wheel hub holder, spring perch and crossbeam brace panel link into an integrated entity by welding manner, are fixed with welded nut on its center member brace panel 104;

Described torsion bar soldering member 2 comprises torsion bar 201, be positioned at the torsion bar anchor 202 at torsion bar 201 two ends and be positioned at 2 discs 203 at torsion bar 201 middle parts, torsion bar, torsion bar anchor and 2 discs that are positioned at torsion bar middle part link into an integrated entity by welding manner, wherein are fixed with 2 welded nuts (referring to Fig. 4) on the torsion bar anchor (202);

Described torsion bar stabilizing member 3 has opening 302 on one side, and being stuck between two discs 203 in torsion bar 201 middle parts by this opening 302 can not sway;

Be equipped with the torsion bar soldering member 2(of torsion bar stabilizing member 3 referring to Fig. 5) 2 bolts assemblies by torsion bar anchor 202 on the crossbeam 105 of torsion beam soldering member 1,1 bolts assemblies on crossbeam brace panel 104 (referring to Fig. 2).

Described torsion bar stabilizing member 3 is Rubber Parts, structure triangular in shape, the centre has the circular hole 301 by torsion bar 201, with torsion bar 201 be interference fit; There is opening 302 on one side that described torsion bar stabilizing member 3 contacts with crossbeam 105, with crossbeam 105 interference fit, fixedly is assemblied in (referring to Fig. 6) on the torsion bar 201 by pushing.

Claims

1. semi-independent rear suspension of automobile torsion beam, it is characterized in that: the semi-independent rear suspension of this automobile torsion beam is demountable structure, comprises torsion beam soldering member (1), torsion bar soldering member (2) and torsion bar stabilizing member (3);

Described torsion beam soldering member (1) comprises crossbeam (105), is positioned at the trailing arm (101) at crossbeam two ends, takes turns hub holder (102), spring perch (103), end, described crossbeam two ends has two holes and is connected with a crossbeam brace panel (104), crossbeam, the trailing arm that is positioned at the crossbeam two ends, wheel hub holder, spring perch and crossbeam brace panel link into an integrated entity by welding manner, are fixed with welded nut on its center member brace panel (104);

Described torsion bar soldering member (2) comprises torsion bar (201), be positioned at the torsion bar anchor (202) at torsion bar (201) two ends and be positioned at 2 discs (203) at torsion bar (201) middle part, torsion bar, torsion bar anchor and 2 discs that are positioned at torsion bar middle part link into an integrated entity by welding manner, wherein are fixed with 2 welded nuts on the torsion bar anchor (202);

Described torsion bar stabilizing member (3) has on one side opening (302), and being entrapped between torsion bar (201) two discs in middle part (203) by this opening (302) can not sway;

The torsion bar soldering member (2) that is equipped with torsion bar stabilizing member (3) is upper at the crossbeam (105) of torsion beam soldering member (1) by 2 bolts assemblies of torsion bar anchor (202), 1 bolts assemblies is on crossbeam brace panel (104).

2. according to the semi-independent rear suspension of automobile torsion beam claimed in claim 1, it is characterized in that: described torsion bar stabilizing member (3) is Rubber Parts, structure triangular in shape, centre have by the circular hole of torsion bar (201) (301), with torsion bar (201) be interference fit; One side that described torsion bar stabilizing member (3) contacts with crossbeam (105) has opening (302), with described crossbeam (105) interference fit, fixedly is assemblied on the torsion bar (201) by pushing.