CN201559496U - Automobile suspension - Google Patents

Automobile suspension Download PDF

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Publication number
CN201559496U
CN201559496U CN2009202470720U CN200920247072U CN201559496U CN 201559496 U CN201559496 U CN 201559496U CN 2009202470720 U CN2009202470720 U CN 2009202470720U CN 200920247072 U CN200920247072 U CN 200920247072U CN 201559496 U CN201559496 U CN 201559496U
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CN
China
Prior art keywords
wall
back axle
skeleton
bump rubber
circular arc
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Expired - Lifetime
Application number
CN2009202470720U
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Chinese (zh)
Inventor
李达基
王大可
万妮
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Beiqi Foton Motor Co Ltd
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Beiqi Foton Motor Co Ltd
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Priority to CN2009202470720U priority Critical patent/CN201559496U/en
Application granted granted Critical
Publication of CN201559496U publication Critical patent/CN201559496U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model provides an automobile suspension, which comprises a cylinder-shaped rear shaft, a buffer block and fasteners, wherein, the buffer block comprise a framework, the framework extends along the length direction of the rear shaft and the cross section of the framework is circular arc-shaped, the framework and the rear shaft are in fixed connection by fasteners, and the circular arc-shaped inner wall of the framework and an outer wall of the shaft pipe of the rear shaft are matched, the curvature radius of the circular arc-shaped inner wall is larger than the radius of the outer wall of the rear shaft pipe, when being assembled, the acting force applied by fasteners can enable the framework to generate elastic deformation to be matched with the outer wall of the shaft pipe. Because of the curvature radius of the circular arc-shaped inner wall larger than the radius of the outer wall of the rear shaft pipe, the fasteners can enable the circular arc-shaped inner wall of the framework to generate the deformation and contract toward the shaft pipe of the rear shaft, and at last to be adapted to the surface state of the outer wall of the rear shaft pipe and be completely attached to the outer wall of the rear shaft pipe, thereby avoiding the non-firm phenomenon of the fixing of the buffer block and the rear shaft.

Description

Automotive suspension
Technical field
The utility model relates to automotive suspension.
Background technology
The bump rubber that automotive suspension uses is a kind of structure and the very strong elastic element of path of motion nonlinear degree, usually with main elastic element for example buffering stand use stroke with the restriction suspension, thereby prevent from that suspension is breakdown and absorb to pass to impact load on the vehicle body from wheel.With the elastic element of ground shock loading transfer to the vehicle body, in the vibration of decay car load, frequent and vehicle body collides bump rubber, very easily causes the damage of bump rubber self as a kind of.And if bump rubber is fixing loosening, not firm, then can form very abominable operating mode, further aggravated the damage of bump rubber.
As shown in Figure 1, automotive suspension comprises cylindrical back axle 10, bump rubber 20 and fastener 30, bump rubber 10 comprises skeleton, this skeleton is a circular arc along the length direction extension and the cross-sectional plane of cylindrical back axle 10, and skeleton contacts with the outer wall of the bridge tube of cylindrical back axle 10 with the inwall of cylindrical back axle 10 by the circular arc of fastener 30 captive joints and skeleton.Wherein, the radius of curvature of the inwall of circular arc is identical with the radius of the outer wall of the bridge tube of cylindrical back axle 10, thereby can realize the applying fully of skeleton and cylindrical back axle 10 under the situation of not considering manufacturing errors.Owing to reasons such as manufacturing errors and installation errors, the surface of skeleton and cylindrical back axle 10 exists uneven, thereby can't realize the applying fully of skeleton and cylindrical back axle 10 but in fact.Fastener for example U-bolt can not guarantee between skeleton and the cylindrical back axle 10 slide relative not to take place to the fastening force of skeleton and cylindrical back axle 10 center of curvature towards the inwall of the circular arc of skeleton.Thereby 10 situations about contacting of skeleton and cylindrical back axle appear.The consequence that causes thus is that bump rubber 20 is fixing not firm on cylindrical back axle 10, the bad working environments that bump rubber 20 can rotate on cylindrical back axle 10 occurred.
The utility model content
The utility model provides a kind of automotive suspension of fitting fully can realized between bump rubber and the cylindrical back axle.
Automotive suspension of the present utility model comprises cylindrical back axle, bump rubber and fastener, described bump rubber comprises skeleton, described skeleton is a circular arc along the length direction extension and the cross-sectional plane of described cylindrical back axle, described skeleton cooperates with the outer wall of the bridge tube of described cylindrical back axle with the inwall of described cylindrical back axle by the circular arc of described fastener captive joint and described skeleton, wherein, the radius of curvature of the inwall of described circular arc is greater than the radius of the outer wall of the bridge tube of described cylindrical back axle, the application force that described fastener applies during assembling makes described skeleton elastic deformation, thereby cooperates with the outer wall of the bridge tube of described cylindrical back axle.
Because the radius of curvature of the inwall of described circular arc is greater than the radius of the outer wall of the bridge tube of described cylindrical back axle, when bump rubber and cylindrical back axle are installed, make the mid point of inwall of circular arc of skeleton contact and make other parts and the cylindrical back axle maintenance gap of circular arc with the outer wall of the bridge tube of cylindrical back axle.Can eliminate these gaps by using fastener, make the inwall of circular arc of skeleton deform and shrink towards the bridge tube of cylindrical back axle, finally be adapted to cylindrical back axle bridge tube outer wall apparent condition and fit fully with the outer wall of the bridge tube of cylindrical back axle, avoided bump rubber and cylindrical back axle to fix unstable phenomenon.
Description of drawings
Fig. 1 is the structural representation of assembly relation of the bump rubber of display automobile suspension;
Fig. 2 is the result schematic diagram of installation relation that shows the bridge tube of the bump rubber of automotive suspension of a kind of embodiment of the present utility model and cylindrical back axle;
Fig. 3 is that scheme drawing is looked on the left side of bump rubber;
Fig. 4 is the structural representation of bump rubber that shows the automotive suspension of another kind of embodiment of the present utility model;
Fig. 5 is the structural representation of assembly relation that shows the bump rubber of automotive suspension of the present utility model.
The specific embodiment
Automotive suspension of the present utility model comprises cylindrical back axle 10 (hereinafter to be referred as back axle 10), bump rubber 20 and fastener 30, bump rubber 20 comprises skeleton 21, skeleton 21 is a circular arc along the length direction extension and the cross-sectional plane of back axle 10, skeleton 21 cooperates with the outer wall of the bridge tube of back axle 10 with the inwall of back axle 10 by the circular arc of fastener 30 captive joints and skeleton 21, wherein, the radius of curvature of the inwall of described circular arc is greater than the radius of the outer wall of the bridge tube of back axle 10, the application force that described fastener applies during assembling makes described skeleton elastic deformation, thereby cooperates with the outer wall of the bridge tube of described back axle.
As mentioned above, because the application force that 30 pairs of skeletons 21 of fastener apply towards back axle 10, make the inwall of circular arc of skeleton 21 be forced to fit on the outer wall of bridge tube of back axle 10, thereby be suitable for the apparent condition of outer wall of the bridge tube of back axle 10, just make the inwall of circular arc of skeleton 21 have and the corresponding apparent condition of this apparent condition, finally realize the applying fully of outer wall of the bridge tube of the inwall of circular arc and back axle 10.Therefore, the application force of 30 pairs of skeletons 21 of fastener not only comprises the power towards the center of curvature of the circular arc of skeleton 21, also makes the inwall of skeleton 21 be fitted in fully according to the existing condition of the outside face of the bridge tube of back axle 10 on the outer wall of bridge tube of back axle 10.Thereby reinforced captiveing joint of bump rubber 20 and back axle 10.
Preferably, the radius of curvature of the inwall of described circular arc is than the big 0.5-3mm of radius of the outer wall of the bridge tube of back axle 10, thereby make the inwall of the circular arc of skeleton 21 that suitable distortion and contraction take place under the effect of fastener 30, under certain pressure, fit tightly with outer wall with the bridge tube of back axle 10.For example, in an embodiment of the present utility model, the radius of the outer wall of the bridge tube of back axle 10 is 38mm, and the radius of curvature of the circular arc of skeleton 21 is 38.5mm.
Skeleton 21 can be the semi-rigid material that can elastic deformation to a certain degree take place and have suitable intensity under the effect of the power that fastener 30 applies, for example Q235A material.Preferably, after bump rubber 20 disassembled from back axle 10, the circular arc of skeleton 21 can be returned to the state with initial radius of curvature.
Fastener 30 can be that the various inwalls that are suitable for the circular arc of skeleton 21 apply application force so that it is fitted in the parts on the outer wall of bridge tube of back axle 10 fully.Preferably, as shown in Figure 5, fastener 30 is a U-bolt.When using fastening bump rubber 20 of U-bolt and back axle 10, U-bolt makes the inwall of the circular arc of skeleton 21 be properly fit onto on the outer wall of bridge tube of back axle 10 and the outer wall of the circular arc of the inwall of the sweep of the U type end of U-bolt and skeleton 21 is fitted fully.Therefore, can select suitable U-bolt according to the thickness of the wall of the circular arc of the outer wall of the bridge tube of back axle 10 and skeleton 21.Particularly, make that the inwall of circular arc of skeleton 21 is properly fit onto on the outer wall of bridge tube of back axle 10 after, the radius of curvature of the internal diameter of the sweep of U-bolt and the outer wall of described circular arc is complementary.For example, when the radius of curvature of the outer wall of the bridge tube of back axle 10 is the thickness of wall of the circular arc of 38mm (being skeleton 21 and the radius of curvature of the inwall of the circular arc of back axle 10 applying back skeletons 21) and skeleton 21 when being 3mm, the internal diameter that can select sweep for use is the U-bolt of 41mm.In addition, the assembling of U-bolt is well known in the art, does not elaborate at this.
Preferably, as shown in Figure 3, bump rubber 20 comprises the block 23 that is arranged on along the two ends of the length direction of skeleton 21, thereby prevents that U-bolt from moving along the length direction of skeleton 21 when by U-bolt skeleton 21 being captiveed joint with the bridge tube of back axle 10.
In addition, to shown in Figure 5, bump rubber 20 comprises the damper element 22 of captiveing joint with skeleton 21 as Fig. 2, and this damper element 22 is at skeleton 21 and be fixed between the bump rubber support 40 on the vehicle body, and keeps gaps with bump rubber support 40.Particularly, damper element 22 is captiveed joint with skeleton 21 and is protruded along the bending direction of the circular arc of skeleton 21 center of circle of described circular arc (promptly away from).Bump rubber support 40 be fixed on the vehicle body of automobile and be positioned at bump rubber 20 directly over, when vehicle was loaded on to a certain degree or jolts, bump rubber 20 and 40 collisions of bump rubber support were to realize reaching the purpose of restriction suspension travel.Particularly, because back axle 10 is fixed on the steel spring of vehicle usually, thereby back axle 10 is can be because of Uneven road etc. former thereby with this steel spring heave and set during vehicle ', promptly changes with respect to the position of vehicle body along short transverse.When stationary vehicle or smooth-ride, too many variation can not take place along the position of short transverse in the back axle 10 of described automotive suspension, and buffering stand 40 and damper element 22 two relative surfaces keep gaps; When vehicle jolted because of reasons such as Uneven roads, the sport that back axle 10 makes progress made the bump rubber 20 on the bridge tube be installed in back axle 10 bump by described two relative surfaces with bump rubber support 40 on being fixed on vehicle body.
Wherein, damper element 22 can be made by various elasticity energy-absorbing materials, is for example made by elastic caoutchouc or resin.Buffering stand 40 can be made by various semi-rigid materials with suitable elasticity and intensity, for example the Q235A material.
Damper element 22 and bump rubber support 40 two relative surfaces can form flat, be suitable for that bump rubber 20 moves up and down with back axle 10 and with bump rubber support 40 case of collision.Contriver of the present utility model finds that though bump rubber 20 moves up and down with back axle 10, owing to back axle 10 is installed on the steel spring of automotive suspension usually, thereby the motion of back axle 10 is not to be vertical up and down linear reciprocating motion.Therefore, when bump rubber 20 moves to bump rubber support 40 position contacting with back axle 10, damper element 22 can run-off the straight with respect to the surface of bump rubber support 40, thereby cause during actual the use line contact rather than the face on two relative surfaces of damper element 22 and bump rubber support 40 to contact.Cause area of contact little thus, influence the service life of bump rubber 20.
By analysis to the path of motion of back axle 10, the position in the time of can drawing bump rubber 20 with 40 collisions of bump rubber support.Through discovering of contriver of the present utility model, bump rubber 20 single-piece path of motions and angle of vertical direction inclination, make have between two relative surfaces of damper element 22 and bump rubber support 40 this angle of inclination then can satisfy on relative two planes of damper element 22 under this state and bump rubber support 40 at bump the time realization face contact, thereby the contact conditions when improving bump rubber 20 greatly and colliding.According to the analysis to the path of motion of the back axle 10 of different automobile types, described angle of inclination is the 3-5 degree.
Preferably, bump rubber support 40 is a horizontal surface with respect to the surface of damper element 22, and as shown in Figure 4, damper element 22 is the dip plane with respect to the surface of buffering stand 40.Since bump rubber support 40 be positioned at bump rubber 20 directly over, the horizontal surface of the direction indication bump rubber support 40 shown in the chord length of the circular arc of skeleton 21 that can be by bump rubber 20, therefore, the dip plane of damper element 22 also tilts with respect to the chord length of circular arc.
In addition; can make damper element 22 with respect to the size on the surface of support 40 size with respect to the surface of damper element 22 less than support 40; thereby when damper element 22 bump supports 40 with the surface of damper element 22 as action face, to protect damper element 22 better.

Claims (10)

1. automotive suspension, described automotive suspension comprises cylindrical back axle (10), bump rubber (20) and fastener (30), described bump rubber comprises skeleton (21), described skeleton (21) is a circular arc along the length direction extension and the cross-sectional plane of described cylindrical back axle (10), described skeleton (21) cooperates with the outer wall of the bridge tube of described cylindrical back axle (10) with the inwall of described cylindrical back axle (10) by the circular arc of described fastener (30) captive joint and described skeleton (21), it is characterized in that, the radius of curvature of the inwall of the circular arc of described skeleton (21) is greater than the radius of the outer wall of the bridge tube of described cylindrical back axle (10), the application force that described fastener (30) applies during assembling makes described skeleton (21) elastic deformation, thereby cooperates with the outer wall of the bridge tube of described cylindrical back axle.
2. automotive suspension according to claim 1 is characterized in that, the radius of curvature of the inwall of described circular arc is than the big 0.5-3mm of radius of the outer wall of the bridge tube of described cylindrical back axle (10).
3. automotive suspension according to claim 1 is characterized in that, described fastener is a U-bolt.
4. according to any described automotive suspension among the claim 1-3, it is characterized in that described bump rubber (20) comprises the block (23) that is arranged on along the two ends of the length direction of described skeleton (21).
5. automotive suspension according to claim 1, it is characterized in that, described bump rubber (20) comprises the damper element (22) of captiveing joint with described skeleton (21), this damper element (22) is positioned at described skeleton (21) and is fixed between the bump rubber support (40) on the vehicle body, and keeps the gap with described bump rubber support (40).
6. automotive suspension according to claim 5 is characterized in that, described damper element (22) is an elastic caoutchouc spare.
7. automotive suspension according to claim 5 is characterized in that, described damper element (22) has two relative surfaces with described support (40), has the angle of inclination between these two relative surfaces.
8. automotive suspension according to claim 7 is characterized in that, described angle of inclination is the 3-5 degree.
9. automotive suspension according to claim 7 is characterized in that, described damper element (22) with respect to the size on the surface of described support (40) size with respect to the surface of described damper element (22) less than described support (40).
10. according to any described automotive suspension among the claim 7-9, it is characterized in that, the surface with respect to described damper element (22) of described bump rubber support (40) is a horizontal surface, and the surface with respect to described support (40) of described damper element (22) is the dip plane.
CN2009202470720U 2009-11-17 2009-11-17 Automobile suspension Expired - Lifetime CN201559496U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009202470720U CN201559496U (en) 2009-11-17 2009-11-17 Automobile suspension

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009202470720U CN201559496U (en) 2009-11-17 2009-11-17 Automobile suspension

Publications (1)

Publication Number Publication Date
CN201559496U true CN201559496U (en) 2010-08-25

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CN2009202470720U Expired - Lifetime CN201559496U (en) 2009-11-17 2009-11-17 Automobile suspension

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104401196A (en) * 2014-11-14 2015-03-11 南京徐工汽车制造有限公司 Hydro-pneumatic suspension mechanism for dumper
CN110588267A (en) * 2019-08-22 2019-12-20 金龙联合汽车工业（苏州）有限公司 Plate spring composite cover plate

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104401196A (en) * 2014-11-14 2015-03-11 南京徐工汽车制造有限公司 Hydro-pneumatic suspension mechanism for dumper
CN110588267A (en) * 2019-08-22 2019-12-20 金龙联合汽车工业（苏州）有限公司 Plate spring composite cover plate

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CX01 Expiry of patent term

Granted publication date: 20100825

CX01 Expiry of patent term