CN203110859U

CN203110859U - Anti-slip connecting structure of automobile front lower swing arm and spherical hinge

Info

Publication number: CN203110859U
Application number: CN 201320085531
Authority: CN
Inventors: 姜泳
Original assignee: Shanghai Huizhong Automotive Manufacturing Co Ltd
Current assignee: Shanghai Huizhong Automotive Manufacturing Co Ltd
Priority date: 2013-02-25
Filing date: 2013-02-25
Publication date: 2013-08-07
Anticipated expiration: 2023-02-25

Abstract

The utility model provides an anti-slip connecting structure of an automobile front lower swing arm and a spherical hinge. The anti-slip connecting structure of the automobile front lower swing arm and the spherical hinge solves the problem that the connection between the swing arm and the spherical hinge is loose. To achieve the goal, the anti-slip connecting structure of the automobile front lower swing arm and the spherical hinge comprises a swing arm upper sheet, a spherical hinge main pin shell body and a plurality of flange bolts, wherein the flange bolts are used for connecting the swing arm upper sheet with the spherical hinge main pin shell body, flanges of the flange bolts are connected to form an integrated piece, the flange bolts are made to form an integrated bolt set, and the flanges tightly press the surface of the swing arm upper sheet.

Description

The connection structure of swing arm and spherical hinge antiskid under before the automobile

Technical field

The utility model relates to the connection structure of car chassis, relates in particular to the connection structure of the preceding swing arm down of automobile and spherical hinge.

Background technology

Preceding swing arm down is connected by spherical hinge stub housing, swing arm last slice, hexagonal flange nut M10*1.25(10 level with spherical hinge) and hexagonal bolt with flange 10M10*1.25(10.9 level) form.When automobile at emergency braking, break away and cross under the bad working environments such as uneven road surface, preceding swing arm down and spherical hinge be connected the generation impact extruded.The swing arm of all finding the discrete trial sample in the present application people " swing arm is connected antiskid with spherical hinge and moves stand test " and " strengthening the test of way road " is connected generation and becomes flexible phenomenon with spherical hinge.Swing arm is guiding and the support of automotive suspension under before the automobile, and is loosening if swing arm is connected with spherical hinge, will influence vehicle and travel.Sideslip or wear on tyres mal during travelling, vehicle easily take place; Produce abnormal sound in travelling; Maneuvering performance descent direction dish is unstable in running at high speed, and reduces roadability greatly.

The utility model content

The purpose of this utility model is to provide the connection structure of the preceding swing arm down of a kind of automobile and spherical hinge antiskid, is connected the loosening problem that takes place with spherical hinge to solve swing arm.

Connection structure for following swing arm and spherical hinge antiskid before the automobile of realizing described purpose, comprise swing arm last slice, spherical hinge stub housing and a plurality of bolt with flanges that connect swing arm last slice, spherical hinge stub housing, wherein, the flange of these a plurality of bolt with flanges part that links into an integrated entity, so that these a plurality of bolt with flanges become the bolt group of an one, this flange presses the surface in swing arm last slice.

Described connection structure, wherein, this flange is leg-of-mutton plate.

Described connection structure, wherein, these a plurality of bolt with flanges are three bolt with flanges, are in triangular distribution.

Described connection structure, wherein, the thickness of described flange is 0.5～0.6 of swing arm last slice thickness.

The flange of the part that links into an integrated entity described in the utility model retrains bolt each other and pins down, and can solve swing arm according to contriver's test and be connected the loosening problem that takes place with spherical hinge.

Description of drawings

Fig. 1 is the scheme drawing in the front of preceding swing arm down and spherical hinge assembly.

Fig. 2 is the scheme drawing at the back side of preceding swing arm down and spherical hinge assembly.

Fig. 3 is the partial view that preceding swing arm down is connected with spherical hinge.

Fig. 4 is the section-drawing along A-A line among Fig. 3.

Fig. 5 is the preceding scheme drawing of the bolt connecting hole of the distortion of swing arm last slice down.

Fig. 6 is the partial view that the preceding swing arm down after improving is connected with spherical hinge.

Fig. 7 is the section-drawing along B-B line among Fig. 6.

The specific embodiment

As shown in Figures 1 to 4, mainly be to be welded to form by sheet 18 under swing arm last slice 15, the swing arm and brace panel 12 for the preceding down swing arm after the structure optimization of lightweight purpose, swing arm is light by about 15% down than before two traditional design types that are welded to form of symmetry up and down for it, and the strength at repeated alternation of swing arm and reliability reach designing requirement.Be pressed into front lining 13 in its support sleeve 14, also the opposite end in the spherical hinge side has been pressed into back bush 16.

As shown in Figure 3 and Figure 4, swing arm last slice 15 connects spherical hinge stub housing 10 by three bolt with flanges 19, and bolt with flange 19 is fastening by flange nut 17.The swing arm of all finding the discrete trial sample in the present application people " swing arm is connected antiskid with spherical hinge and moves stand test " and " strengthening the test of way road " is connected with spherical hinge phenomenon takes place to become flexible, and swing arm last slice 15 is connected test sample that generation becomes flexible and sheds behind flange nut and the bolt with flange as shown in Figure 5 with spherical hinge.When automobile at emergency braking, break away and cross under the bad working environments such as uneven road surface, preceding swing arm down and spherical hinge be connected the generation impact extruded.The contriver also further finds, because spherical hinge stub housing 10, the shear strength of flange nut 17 and bolt with flange 19 is much larger than swing arm last slice 15(material specification: shear strength 3.6APH440 Q/BQB310-2003), the bolt hole 191 of swing arm last slice 15,192,193 are subjected to the shearing generation crimp of longitudinal force to become ellipse, hole 191,192 distortion is particularly evident, the distortion in hole 193 is not obvious, this causes tie bolt 19 and hole 191, gap between 192 increases, produce slippage between nut 17 and swing arm last slice 15 planes, swing arm is loosening with being connected of spherical hinge down before finally causing.

For solving this defective, the contriver attempts to prevent that with the Clamping force that improves bolt and nut swing arm is loosening with being connected of spherical hinge by the screw-down torque that increases by six flange nuts and bolt with flange, but after stand test, hole 191,192 still is out of shape obviously, and hole 193 distortion are not obvious.

As shown in Figure 6 and Figure 7, among the embodiment of the present utility model, three bolt with flanges 181,182,183 flange 184 are linked into an integrated entity, from Fig. 6, bolt with flange 181,182,183 flange are a leg-of-mutton plate.Bolt with flange 181,182,183 flange and swing arm last slice 15 are fitted.The area of the contact surface of the flange of bolt and swing arm last slice 15 increases like this, make to obtain bigger constraint between three bolts 181,182,183 and pin down, and has avoided two holes to deform earlier and the loosening phenomenon that causes.Carrying out repeatedly " swing arm is connected antiskid and moves the stand contrast test with spherical hinge " back with the bottom arm assembly of Fig. 3, Fig. 4 connection mode under the constant situation of bolt and nut Clamping force finds, no slippage generation between the plate plane in the flange face of the bottom arm assembly of Fig. 6, connection shown in Figure 7 and the swing arm, 3 bolt hole distortion of swing arm last slice are not obvious, and swing arm produces with the non-loosening phenomenon that is connected of spherical hinge.

The thickness of flange 184 is about 0.5-0.6 times of swing arm last slice 15 thickness.

In the aforementioned embodiment, the manufacturing of three bolt with flanges 181,182, the 183 bolt groups that constitute can be that three bolts are compressed on the same pad, and this pad plays the effect of flange 184 these three bolts are played constraint and restraining function.

Claims

1. the connection structure of swing arm and spherical hinge antiskid under before the automobile, comprise swing arm last slice, spherical hinge stub housing and a plurality of bolt with flanges that connect swing arm last slice, spherical hinge stub housing, it is characterized in that, the flange of these a plurality of bolt with flanges part that links into an integrated entity, so that these a plurality of bolt with flanges become the bolt group of an one, this flange presses the surface in swing arm last slice.

2. connection structure as claimed in claim 1 is characterized in that, this flange is leg-of-mutton plate.

3. connection structure as claimed in claim 1 is characterized in that, these a plurality of bolt with flanges are three bolt with flanges, are in triangular distribution.

4. connection structure as claimed in claim 1 is characterized in that, the thickness of described flange is 0.5～0.6 of swing arm last slice thickness.