CN102267352B - Shaft bushing of vehicle suspending system - Google Patents
Shaft bushing of vehicle suspending system Download PDFInfo
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- CN102267352B CN102267352B CN2010101984870A CN201010198487A CN102267352B CN 102267352 B CN102267352 B CN 102267352B CN 2010101984870 A CN2010101984870 A CN 2010101984870A CN 201010198487 A CN201010198487 A CN 201010198487A CN 102267352 B CN102267352 B CN 102267352B
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- axle bush
- suspension system
- fuse
- projection
- vehicle suspension
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- 239000000463 material Substances 0.000 claims abstract description 20
- 239000000725 suspension Substances 0.000 claims description 72
- 229910000831 Steel Inorganic materials 0.000 claims description 14
- 239000010959 steel Substances 0.000 claims description 14
- 239000007787 solid Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 9
- 230000001788 irregular Effects 0.000 abstract description 2
- 239000004576 sand Substances 0.000 description 5
- 230000003139 buffering effect Effects 0.000 description 4
- 208000020442 loss of weight Diseases 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229920001971 elastomer Polymers 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 206010011469 Crying Diseases 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- -1 and therefore Substances 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
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Abstract
The invention relates to a shaft bushing of a vehicle suspending system. The shaft bush comprises a rigid axial core and an outer bushing with resilience, wherein the outer bushing is sheathed on the round section of the periphery of the core; the outer bushing is respectively and correspondingly provided with a concave hole at the upper side and the lower side of the vertical direction of the core; the core comprises a core body and bosses which are correspondingly arranged at the front side and the rear side of the horizontal direction of the core body. According to the invention, since the core body is provided with the outward bosses at the front side and the rear side in the horizontal direction, the rigidity in the longitudinal direction, namely the driving direction of a vehicle, is increased, the tractive capability of the vehicle in the driving process is enhanced, the lateral force generated in the driving or turning process of the vehicle is reduced, and the stability of the vehicle is increased. In addition, since the shaft bushing is made of two or more than two materials with different hardness, and the contact surface of the two materials is made into an irregular shape, so that the contact area and the bonding force are increased, and further the two materials are not easy to fall when bearing the lateral force.
Description
Technical field
The present invention relates to a kind of vehicle suspension system, be specifically related to a kind of suspended rack assembly of vehicle suspension system, more specifically relate to a kind of axle bush of vehicle suspension system.
Background technology
Traveling comfort is one of most important in-use performance of vehicle.Traveling comfort is relevant with the natural vibration characteristic of vehicle body, and the natural vibration characteristic of vehicle body is relevant to the characteristic of suspension, and therefore, vehicle suspension system is the vitals that guarantees vehicle riding comfort.Simultaneously, vehicle suspension system, as the power transmission parts that connect between vehicle frame (or vehicle body) and axletree (or wheel), is again the vitals that guarantees ride safety of automobile.
Each suspension of existing vehicle comprises a pair of spaced suspended rack assembly, each suspended rack assembly has a tail boom or suspension swing arm, and the tail boom suspension swing arm between its front-end and back-end for basically hard structure without any joint, pivot point or analogue, thereby tail boom suspension swing arm structure self obvious deflection not.And hard suspension swing arm or the tail boom of this class of suspended rack assembly are connected to pivot rigidly to the rear end relative with its front end at the middle part of suspension swing arm or tail boom, and this is pivotally connected to the vehicle frame suspension holdfast.Be arranged on that pivot in tail boom or suspension swing arm is subject to vertically in use, level, axially and the effect of the power on torsional direction, therefore require these pivots can bear these power, comprise that damping and the inharmonic wheel of buffering load, and be delivered to vehicle by changing from the power of regulating these different directions in the hardness of different directions, make vehicle more steadily comfortable and make these bearings there is long-term service life under steam.
In existing vehicle, tail boom or suspension swing arm realize by axle bush to the pivotal joint of suspension holdfast, and existing axle bush just comprises elastomeric external bushing, and this elasticity external bushing is that the fuse molding also adhesively is connected thereto round the center steel bushing.Wherein, the center steel bushing is that fuse is not flexible in fact, and the elasticity external bushing has certain rebound resilience that is tending towards buffering vertical power, horizontal force and torsion, especially has certain to be tending towards power and inharmonic rebound resilience of taking turns loading that buffering is rolled and caused.Usually, external bushing is made by elastomeric material.Although external bushing has been made into very hard, and partly there is hardness and the rebound resilience of same levels around axial sleeve.But this has limited the effectiveness of external bushing, because load is in the external bushing normal direction when using, external bushing requires with the hardness at the part place of different angles location and rebound resilience around pivot may some variation.If external bushing bears heavy load in use, it will have high level hardness usually so, this hardness makes it too hard for suitable load buffering, if but external bushing is made in use and had compromise other hardness of level and rebound resilience for the load range that acts on it along different directions, its performance just is restricted so undoubtedly.
In order to change the hardness of external bushing for while using to act on from different directions the different stage power of pivot, existing way is that external bushing is offered to shrinkage pool, and that shrinkage pool is generally is arc, in the both sides up and down of axial sleeve vertical direction.This has made on the cardinal principle vertical direction hardness deliquescing that loads the external bushing under situation, and the cardinal principle longitudinal direction that simultaneously keeps vehicle is that vehicle is exercised on direction larger hardness is arranged, in order to roll and inharmonious situation of taking turns loading under make vehicle more comfortable.But, along this cardinal principle longitudinal direction, be that the hardness that vehicle enforcement direction provides is limited, be not enough to tackle satisfactorily the loading environment increased gradually, and only have some vehicle could move under these conditions.
For solving the hardness problem of longitudinal direction, U.S. Pat 7252298B2 discloses a kind of pivot bearing, and as shown in Figure 1, this pivot bearing comprises a shell 13 ', one compresses and is bonded in the elastic external bushing 12 ' that has in shell 13 ', and an inner rigid fuse 11 ' in external bushing 12 '.External bushing has sand holes 121 ', and when pivot bearing is installed for use, sand holes are located at the both sides up and down of this inside fuse 11 ' vertical direction.Be provided with Hardening parts 14 ' in external bushing 12 ', reinforcing member 14 ' is extending between opposite side between sand holes 121 '.When pivot bearing suspends in midair for the vehicle towing arm, when sand holes 121 ' have the cardinal principle radial weight at pivot bearing, increase the flexibility of lining.Hardening parts 14 ' enhanced level direction is that the hardness of the external bushing of longitudinal direction or vehicle enforcement direction shakes to improve vehicle power and to reduce, but because the opposed end of sand holes 121 ' is stretched on the limit of its Hardening parts 14 ', therefore in the Vehicle Driving Cycle process, Hardening parts 14 ' be easy to and external bushing 12 ' between fracture.
Summary of the invention
The technical problem to be solved in the present invention is: a kind of axle bush of vehicle suspension system is provided, and increasing longitudinal direction is the rigidity of vehicle heading, lowers vehicle vibration in the process of moving, vehicle is more steadily taken more comfortable.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
A kind of axle bush of vehicle suspension system, comprise the axial fuse of rigidity and the elastic external bushing that has of the circular section that is set in this fuse periphery, this external bushing is provided with shrinkage pool in the equal correspondence in the both sides up and down of the vertical direction of this fuse, this fuse comprises mandrel body and in the corresponding projection arranged in the both sides, front and back of the horizontal direction of this mandrel body, this projection and this shrinkage pool are positioned on the different directions of this mandrel body, and this projection and this shrinkage pool not homonymy in this fuse, and two shrinkage pools that are positioned at upper and lower both sides are mutually vertical with the two projections line in the horizontal direction that is positioned at the both sides, front and back at the line of vertical direction.
In the axle bush of above-mentioned vehicle suspension system, the projection of described fuse is outwards stretched out integratedly by described mandrel body, can be also that the other materials suitable by material hardness made and with the welding of described mandrel body or inlay all-in-one-piece.
In the axle bush of above-mentioned vehicle suspension system, described mandrel body length in the axial direction is more than or equal to the steel bushing length in the axial direction of the suspension arms of vehicle suspension system, and described mandrel body length in the axial direction is greater than described external bushing length in the axial direction.
In the axle bush of above-mentioned vehicle suspension system, the suspension arms steel bushing of described axle bush and vehicle suspension system is interference fit.Or the described external bushing outside also is provided with shell, described axle bush and described shell are interference fit.
In the axle bush of above-mentioned vehicle suspension system, the protruding top of the projection of described fuse is towards the horizontal direction of described mandrel body.
In the axle bush of above-mentioned vehicle suspension system, the cross section of the projection of described fuse is semiellipse.
In the axle bush of above-mentioned vehicle suspension system, the projection of described fuse is solid the connection with the periphery of described mandrel body, is provided with at least one perforate on the projection of described fuse.
In the axle bush of above-mentioned vehicle suspension system, the projection of described fuse is hollow the connection with the periphery of described mandrel body, is provided with at least one perforate on the projection of described fuse.
Useful technique effect of the present invention is.
1, axle bush of the present invention, because both sides before and after the mandrel body horizontal direction are that vehicle heading arranges outside projection, having increased longitudinal direction is the rigidity of vehicle heading, strengthened vehicle towability in the process of moving, reduced vehicle travel or steering procedure in the side force that produces, increased the stationarity of vehicle.
2, because the material of axle bush of the present invention by two or more different hardness forms, the contact surface of this bi-material is made irregularly shaped its area of contact and the binding power of having increased, and makes this bi-material be not easy to come off when bearing side force.
The accompanying drawing explanation
For further setting forth the present invention, be technological means and the effect that the predetermined purpose of realization is taked, the present invention describes its purpose, feature and characteristics in detail in conjunction with following accompanying drawing.By the description of the drawings, can go deep into and concrete understanding having in inventing, yet accompanying drawing only provides reference and explanation use, not is used for the present invention is limited.
Fig. 1 is that in prior art U.S. Pat 7252298B2, pivot bearing is the structural representation of axle bush.
Fig. 2 is the suspension arms assembly figure that comprises the axle bush of vehicle suspension system of the present invention.
The end construction schematic diagram of axle bush the first embodiment that Fig. 3 is vehicle suspension system of the present invention.
Another core structures schematic diagram that Fig. 4 is the first embodiment of the invention end construction.
Fig. 5 is the A-A cutaway view of the axle bush shown in Fig. 3.
Fig. 6 is the perspective view of the fuse of axle bush shown in Fig. 3.
Fig. 7 is the perspective view of the axle bush second embodiment fuse of vehicle suspension system of the present invention.
Fig. 8 is the perspective view of axle bush the 3rd embodiment fuse of vehicle suspension system of the present invention.
Fig. 9 is the schematic diagram of third embodiment of the invention fuse vertical direction duplicate removal.
The perspective view of the axle bush of the vehicle suspension system that Figure 10 is the 4th embodiment fuse.
The end view of suspended axle lining the 5th example structure that Figure 11 is vehicle suspension system of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing, by the specific embodiment of the present invention is described in detail, will make technical scheme of the present invention and other beneficial effects apparent.
As shown in Figure 2, vehicle suspension system comprises suspension swing arm 3, and the base 4 that air bellow is installed is arranged at the one end.Suspension arms 3 is welded on above axle sleeve 5, and axle sleeve 5 is welded on central siphon 6.The other end of suspension arms 3 is steel bushings 2 of a circle, its inner installation axle bush 1 for its buffer action that needs.In design in the past, external bushing and inside that axle bush 1 is generally rubber by exterior material are that circular steel pipe is that fuse forms, and generally on the rubber external bushing, the correspondence of both sides up and down of the vertical direction of corresponding fuse is provided with two shrinkage pools.
[embodiment 1]Referring to shown in Fig. 3 to Fig. 6, axle bush the first embodiment of vehicle suspension system of the present invention.
As shown in Figure 3 or Figure 4, the axle bush 1 of the present embodiment comprise the axial fuse 11 of rigidity and be set in these fuse 11 peripheries circular section 12 two parts of elastic external bushing are arranged.Wherein outer liner 12 be generally rubber, polyurethane or similarly flexible material make, two side positions up and down of its vertical direction at fuse 11 have two shrinkage pools 121, in order to be increased in the flexibility of vertical direction, increase the comfort level of vehicle, shrinkage pool 121 can be relative smiling face's shape or the contrary face shape of crying (shown in Fig. 3,4).
As shown in Figure 6, fuse 11 comprises that mandrel body 111 and mandrel body 111 both sides, horizontal directions front and back are the outside projection 112,113 that vehicle heading arranges, in the present embodiment, projection 112,113 roughly is the cross section half elliptic around mandrel body 111 extends, and is positioned at the mandrel body 111 front both sides of horizontal direction and is 112,113 pairs of the projections that the cross section half elliptic extends and is connected into the ellipticity sleeve pipe.
Mandrel body 111 is generally than the high material of external bushing 12 Rigidity and strengths and makes, and is generally the materials such as nylon, iron and steel, cast iron or cast steel.Projection 112,113 can be for forming with the identical or different material of mandrel body 111, can be the extension of mandrel body 111 or by material hardness suitable other materials make and with mandrel body 111 welding or inlay and make one, projection 112,113 can be together with mandrel body 111 casting or inlay, weld together.
In the present embodiment, the cross sectional shape of projection 112,113 is half elliptic, and be half-elliptic a pair of protruding 112,113 pairs of cross section and be connected into the ellipticity sleeve pipe in both sides before and after horizontal directions by mandrel body 111, and preferred scheme is that projection 112,113 and mandrel body 111 are one-body molded.But be not limited to this, projection 112,113 can also be other shape such as arc, the protruding top of projection 112,113 is towards the horizontal direction of mandrel body 111, as long as make fuse 11 irregular with the contact surface of external bushing 12.
In addition, the axial length of mandrel body 111 is more than or equal to the length of steel bushing 2, and mandrel body 111 length in the axial direction is greater than the length of external bushing 12, forms symmetrical sponson 114, for being obedient to of axle bush under axial and the loading situation that tilts.This sponson 114 stretches out symmetrically from the end to axial of external bushing 12, makes like this to form and between external bushing 12 and steel bushing 2, makes axle bush 1 can self carry out accommodation with steel bushing 2 in the load deflection situation and is obedient to.
Embodiment 2]Shown in Figure 7, the second embodiment of the suspension lining that the present embodiment is vehicle suspension system of the present invention, suspension bush structure and the embodiment 1 of the present embodiment are roughly the same, in this omission, do not state, slightly different:
As shown in Fig. 7 to Fig. 8, the projection 112,113 of fuse 11 is solid connections with the periphery of mandrel body 111, and projection is provided with perforate 1122 and 1132 on 112,113, perforate 1122,1132 can for 1 even a plurality of, for loss of weight.
Embodiment 3]Shown in Fig. 8 and Fig. 9, the third embodiment of the suspension lining that the present embodiment is vehicle suspension system of the present invention, suspension bush structure and the embodiment 1 of the present embodiment are roughly the same, in this omission, do not state, slightly different: as shown in Figure 8, Figure 9, the projection 112,113 of fuse 11 is hollow connections with the periphery of mandrel body 111, between the periphery of projection 112,113 and mandrel body 111, is formed with groove 1121 and 1131, for loss of weight.
[embodiment 4]Shown in Figure 10, the 4th kind of embodiment of the suspension lining that the present embodiment is vehicle suspension system of the present invention, the suspension bush structure of the present embodiment combines embodiment 2 and embodiment 3.
As shown in figure 10, the projection 112,113 of fuse 11 is hollow connections with the periphery of mandrel body 111, between the periphery of projection 112,113 and mandrel body 111, is formed with groove 1121 and 1131, for loss of weight.In addition, on the projection 112,113 of fuse, also further offer perforate 1122 and 1132, perforate 1122,1132 can for 1 even a plurality of, equally for loss of weight.
[embodiment 5]Shown in Figure 11, the 5th kind of embodiment of the suspension lining that the present embodiment is vehicle suspension system of the present invention, suspension bush structure and the embodiment 4 of the present embodiment are roughly the same, in this omission, do not state, slightly different:
As shown in figure 11, directly on the mandrel body 111 of tubular, directly be welded with projection 112,113, form fuse 11.
In above embodiment, axle bush 1 can directly be assembled in the steel bushing 2 of suspension arms 3, and axle bush 1 is interference fit with suspension arms steel bushing 2.In addition, can also be at shell (not shown) of the outer increase of external bushing 12, axle bush 1 can bond to and/or be molded in shell, and axle bush 1 is interference fit with shell.
Axle bush of the present invention, because both sides before and after the mandrel body horizontal direction are that vehicle heading arranges outside projection, having increased longitudinal direction is the rigidity of vehicle heading, strengthened vehicle towability in the process of moving, reduced vehicle travel or steering procedure in the side force that produces, increased the stationarity of vehicle.
In addition, because the material of axle bush of the present invention by two or more different hardness forms, the contact surface of this bi-material is made irregularly shaped its area of contact and the binding power of having increased, and makes this bi-material be not easy fracture and come off when bearing side force.
Foregoing; it is only preferred embodiment of the present invention; not for limiting embodiment of the present invention; those of ordinary skills are according to main design of the present invention and spirit; can carry out very easily corresponding flexible or modification, therefore protection scope of the present invention should be as the criterion with the desired protection domain of claims.
Claims (12)
1. the axle bush of a vehicle suspension system, comprise the axial fuse of rigidity and the elastic external bushing that has of the circular section that is set in this fuse periphery, this external bushing is provided with shrinkage pool in the equal correspondence in the both sides up and down of the vertical direction of this fuse, it is characterized in that, this fuse comprises mandrel body and in the corresponding projection arranged in the both sides, front and back of the horizontal direction of this mandrel body, this projection and this shrinkage pool are positioned on the different directions of this mandrel body, and this projection and this shrinkage pool not homonymy in this fuse, and two shrinkage pools that are positioned at upper and lower both sides are mutually vertical with the two projections line in the horizontal direction that is positioned at the both sides, front and back at the line of vertical direction.
2. the axle bush of vehicle suspension system according to claim 1, is characterized in that, the projection of described fuse is outwards stretched out integratedly by described mandrel body.
3. the axle bush of vehicle suspension system according to claim 1, is characterized in that, the projection of described fuse is that the other materials suitable by material hardness made and with the welding of described mandrel body or inlay all-in-one-piece.
4. the axle bush of vehicle suspension system according to claim 1, it is characterized in that, described mandrel body length in the axial direction is more than or equal to the steel bushing length in the axial direction of the suspension arms of vehicle suspension system, and described mandrel body length in the axial direction is greater than described external bushing length in the axial direction.
5. the axle bush of vehicle suspension system according to claim 1, is characterized in that, the suspension arms steel bushing of described axle bush and vehicle suspension system is interference fit.
6. the axle bush of vehicle suspension system according to claim 1, is characterized in that, the described external bushing outside also is provided with shell, and described axle bush and described shell are interference fit.
7. the axle bush of vehicle suspension system according to claim 1, is characterized in that, the protruding top of the projection of described fuse is towards the horizontal direction of described mandrel body.
8. according to the axle bush of the described vehicle suspension system of claim 1 to 7 any one, it is characterized in that, the cross section of the projection of described fuse is semiellipse.
9. the axle bush of vehicle suspension system according to claim 8, is characterized in that, the projection of described fuse is solid the connection with the periphery of described mandrel body.
10. the axle bush of vehicle suspension system according to claim 9, is characterized in that, the projection of described fuse is provided with at least one perforate.
11. the axle bush of vehicle suspension system according to claim 8, is characterized in that, the projection of described fuse is hollow the connection with the periphery of described mandrel body.
12. the axle bush of vehicle suspension system according to claim 11, is characterized in that, the projection of described fuse is provided with at least one perforate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101984870A CN102267352B (en) | 2010-06-07 | 2010-06-07 | Shaft bushing of vehicle suspending system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101984870A CN102267352B (en) | 2010-06-07 | 2010-06-07 | Shaft bushing of vehicle suspending system |
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| Publication Number | Publication Date |
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| CN102267352A CN102267352A (en) | 2011-12-07 |
| CN102267352B true CN102267352B (en) | 2013-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101984870A Active CN102267352B (en) | 2010-06-07 | 2010-06-07 | Shaft bushing of vehicle suspending system |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103612658B (en) * | 2013-11-29 | 2016-03-23 | 长城汽车股份有限公司 | One turns to lining, rear overhang rack and automobile |
| CN110273955B (en) * | 2019-06-21 | 2021-01-22 | 株洲时代新材料科技股份有限公司 | Transverse pull rod node, transverse pull rod node assembly and rigidity adjusting method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7021613B2 (en) * | 2002-05-02 | 2006-04-04 | Yamashita Rubber Kabushiki Kaisha | Antivibration device |
| CN201694012U (en) * | 2010-06-07 | 2011-01-05 | 中集车辆（集团）有限公司 | Shaft liner sleeve of vehicle suspending system |
-
2010
- 2010-06-07 CN CN2010101984870A patent/CN102267352B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7021613B2 (en) * | 2002-05-02 | 2006-04-04 | Yamashita Rubber Kabushiki Kaisha | Antivibration device |
| CN201694012U (en) * | 2010-06-07 | 2011-01-05 | 中集车辆（集团）有限公司 | Shaft liner sleeve of vehicle suspending system |
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| Publication number | Publication date |
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| CN102267352A (en) | 2011-12-07 |
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