CN205970687U - Bush assembly after swing arm - Google Patents
Bush assembly after swing arm Download PDFInfo
- Publication number
- CN205970687U CN205970687U CN201621023829.4U CN201621023829U CN205970687U CN 205970687 U CN205970687 U CN 205970687U CN 201621023829 U CN201621023829 U CN 201621023829U CN 205970687 U CN205970687 U CN 205970687U
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- CN
- China
- Prior art keywords
- back bush
- inner sleeve
- swing arm
- hole
- bush assembly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model discloses a bush assembly after swing arm, including the back bush, back bush in be equipped with outer tube (2) and establish interior sleeve pipe (3) in outer tube (2), outer tube (2) and interior sleeve pipe (3) between be equipped with the annular rubber body (4), the annular rubber body (4) on be equipped with a pair of spacing hole (5), spacing hole (5) about the central symmetry of interior sleeve pipe (3), spacing hole (5) including two through -hole (6) and damping hole (7), damping hole (7) the intercommunication two through -hole (6), damping hole (7) inner wall one side of keeping away from interior sleeve pipe (3) be equipped with wave -shaped protrusion (8), the utility model provides a can not produce the feasible back bush long service life's of noise bush assembly after swing arm between back bush and the frame.
Description
Technical field
This utility model is related to auto parts and components field, more particularly, to a kind of swing arm back bush assembly.
Background technology
Rubber is mainly connected as one with inside and outside axle sleeve by the structure of swing arm back bush by sulfuration.During assembling, then
Swing arm back bush is press fit on swing arm arm body, finally with bolt and nut by swing arm general assembly on vehicle frame, according to prior art, put
Arm bush withstands shocks, reverses and swings in driving, and friction between back bush and vehicle frame can produce noise, and back bush is subject to
Impulsive force is big, and back bush is easily damaged, and service life is short.
Utility model content
Technical problem to be solved in the utility model is：Overcome the defect of above prior art, a kind of back bush is provided
The swing arm back bush assembly that noise makes back bush long service life will not be produced and vehicle frame between.
Technical solution adopted in the utility model is：A kind of swing arm back bush assembly, including back bush, described backsight
It is provided with trocar sheath and the inner sleeve being located in trocar sheath in set, between described trocar sheath and inner sleeve, be provided with ring-shaped rubber body,
Described ring-shaped rubber body is provided with a pair of spacing hole, and, with regard to the centrosymmetry of inner sleeve, described is spacing for described spacing hole
Hole includes two through holes and damping hole, and described damping hole connects two through holes, and described damping hole inwall is away from inner sleeve
Side is provided with wavy bulge.
After above structure, this utility model compared with prior art has advantages below：Vehicle frame and back bush are in fortune
During turning, damping hole can deform, and the inwall of the both sides of damping hole can contact generation friction, then produces noise, damping hole inwall
It is designed to wavy bulge, the contact of inwall is that face contact is changed to linear contact lay, can reduce the noise that contact friction brings, minimizing is made an uproar
Sound is originated, and will not produce frictional noise and make back bush long service life between back bush and vehicle frame.
Preferably, described through hole is circular port, energy dispersive stress, improve the bearing capacity of back bush.
Preferably, the circumference of described inner sleeve upper surface is provided with several toothed projections, described toothed projections
Cross section be trapezoidal, existing raised cross section is triangle, easily bites when coordinate with counterpart, poor reliability, horizontal stroke
Section is changed to trapezoidal, can meet occlusion and require but the counterpart that will not bite, reliability is high.
Preferably, the spacing that described toothed projections are located between the part of inner sleeve excircle is 0.6～0.8 milli
Rice, the spacing that described toothed projections are located between the part of inner sleeve inner periphery is 0.1～0.7 millimeter, specifically, profile of tooth
Raised spacing between the part of inner sleeve excircle is 0.75 millimeter, and toothed projections are located at the part of inner sleeve inner periphery
Between spacing be 0.6 millimeter, the cooperation of inner sleeve and counterpart is relatively reliable, and counterpart is not easy and inner sleeve disengaging.
Preferably, described inner sleeve mid portion is the spherical surface hill protruding from inner sleeve two ends, increase rubber and
The area of metal pipe-wall contact, the rigidity improving intensity and increasing radial direction, reach the matching degree of preferable NVH, preferably comfortable
Property.
Preferably, described ring-shaped rubber body upper surface is provided with projection, described projection is located at trocar sheath and damping hole
Between, the intensity strengthening back bush increased the damping of damping hole simultaneously.
Preferably, the axis of described projection is split into two halves damping hole, effect is good.
Preferably, the opposite side of described damping hole inwall also is provided with wavy bulge, the effect eliminating noise is more preferable.
Preferably, described trocar sheath lower end edge trocar sheath radial direction is provided with annular protrusion, described annular protrusion
Outer annular diameter be more than the annular diameters of back bush, such trocar sheath is not easy to depart from back bush, and reliability is high.
Brief description
Fig. 1 is the front sectional view of this utility model swing arm back bush assembly.
Fig. 2 is the vertical view cutaway drawing of this utility model swing arm back bush assembly.
Fig. 3 is the left view sectional view of this utility model swing arm back bush assembly.
Wherein, 1, annular protrusion, 2, trocar sheath, 3, inner sleeve, 4, ring-shaped rubber body, 5, spacing hole, 6, through hole, 7, damping
Hole, 8, wavy bulge, 9, toothed projections, 10, raised.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
As illustrated, this utility model provides a kind of swing arm back bush assembly, including back bush, set in described back bush
There are trocar sheath 2 and the inner sleeve 3 being located in trocar sheath 2, between described trocar sheath 2 and inner sleeve 3, be provided with ring-shaped rubber body 1,
Described ring-shaped rubber body 1 is provided with a pair of spacing hole 5, and described spacing hole 5 is with regard to the centrosymmetry of inner sleeve 3, described
Spacing hole 5 includes two through holes 6 and damping hole 7, and described damping hole 7 connects two through holes 6, and described damping hole 7 inwall is remote
It is provided with wavy bulge 8 from the side of inner sleeve 3, the utility model has the advantages that vehicle frame and back bush 1 hinder in operation process
Buddhist nun hole 7 can deform, and the inwall of the both sides of damping hole 7 can contact generation friction, then produces noise, and damping hole 7 inwall is designed to
Wavy bulge 8, the contact of inwall is that face contact is changed to linear contact lay, can reduce the noise that contact friction brings, reduce noise
Source, will not produce frictional noise and make back bush 1 long service life between back bush 1 and vehicle frame.
Described through hole 6 is circular port, energy dispersive stress, improves the bearing capacity of back bush 1.
The circumference of described inner sleeve 3 upper surface is provided with several toothed projections 9, described toothed projections 9 transversal
Face is trapezoidal, and existing raised cross section is triangle, easily bites when coordinating with counterpart, poor reliability, and cross section changes
For trapezoidal, occlusion can be met and require but the counterpart that will not bite, reliability is high.
The spacing that described toothed projections 9 are located between the part of inner sleeve 3 excircle is 0.6～0.8 millimeter, described
The spacing that toothed projections 9 are located between the part of inner sleeve 3 inner periphery is 0.1～0.7 millimeter, specifically, toothed projections 9
Spacing between the part of inner sleeve 3 excircle be 0.75 millimeter, toothed projections 9 be located at inner sleeve 3 inner periphery part it
Between spacing be 0.6 millimeter, the cooperation of inner sleeve 3 and counterpart is relatively reliable, and counterpart is not easy to depart from inner sleeve 3.
Described inner sleeve 3 mid portion is the spherical surface hill protruding from inner sleeve 3 two ends, increases rubber and metal pipe-wall
The area of contact, the rigidity improving intensity and increasing radial direction, reach the matching degree of preferable NVH, more preferable comfortableness.
Described ring-shaped rubber body 4 upper surface is provided with raised 10, described projection 10 be located at trocar sheath 2 and damping hole 7 it
Between, the intensity strengthening back bush 1 increased the damping of damping hole 7 simultaneously.
The axis of described projection 10 is split into two halves damping hole 7, and effect is good.
The opposite side of described damping hole 7 inwall also is provided with wavy bulge 8, and the effect eliminating noise is more preferable.
Described trocar sheath 2 lower end edge trocar sheath 2 radial direction is provided with annular protrusion 1, the outer shroud of described annular protrusion 1
With diameter greater than the annular diameters of back bush 1, such trocar sheath 2 is not easy to depart from back bush 1, and reliability is high.
Specifically, principle of the present utility model is that damping hole 7 in operation process can deform vehicle frame with back bush 1, resistance
The inwall of the both sides in Buddhist nun hole 7 can contact generation friction, then produces noise, damping hole 7 inwall is designed to wavy bulge 8, interior
The contact of wall is that face contact is changed to linear contact lay, can reduce the noise that contact friction brings, reduce noise source, back bush 1 and car
Friction abnormal sound will not be produced between frame and make back bush 1 long service life.
Above this utility model preferred embodiment is described, but is not to be construed as limiting the scope of the invention.
This utility model is not only limited to above example, and its concrete structure allows to change, all in this utility model demand for independence
The various change made in protection domain is all in protection domain of the present utility model.
Claims (8)
1. a kind of swing arm back bush assembly, including back bush, is provided with trocar sheath (2) and is located at trocar sheath in described back bush
(2) inner sleeve (3) in, is provided with ring-shaped rubber body (4) between described trocar sheath (2) and inner sleeve (3), described annular rubber
Colloid (4) is provided with a pair of spacing hole (5), and, with regard to the centrosymmetry of inner sleeve (3), described is spacing for described spacing hole (5)
Hole (5) includes two through holes (6) and damping hole (7), described damping hole (7) two through holes (6) of connection it is characterised in that：Institute
Damping hole (7) inwall stated is provided with wavy bulge (8) away from the side of inner sleeve (3).
2. swing arm back bush assembly according to claim 1 it is characterised in that：Described through hole (6) is circular port.
3. swing arm back bush assembly according to claim 1 it is characterised in that：The circle of described inner sleeve (3) upper surface
It is provided with several toothed projections (9) week, the cross section of described toothed projections (9) is trapezoidal.
4. swing arm back bush assembly according to claim 3 it is characterised in that：Described toothed projections (9) are located at inner sleeve
Spacing between the part of pipe (3) excircle is 0.6～0.8 millimeter, and described toothed projections (9) are located at inner sleeve (3) inner circle
Spacing between the part in week is 0.4～0.7 millimeter.
5. swing arm back bush assembly according to claim 1 it is characterised in that：Described inner sleeve (3) mid portion is
Protrude from the spherical surface hill at inner sleeve (3) two ends.
6. swing arm back bush assembly according to claim 1 it is characterised in that：Described ring-shaped rubber body (4) upper surface
It is provided with raised (10), described projection (10) is located between trocar sheath (2) and damping hole (7).
7. swing arm back bush assembly according to claim 6 it is characterised in that：The axis of described projection (10) is damping
Hole (7) is split into two halves.
8. swing arm back bush assembly according to claim 1 it is characterised in that：Described damping hole (7) inwall another
Side also is provided with wavy bulge (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621023829.4U CN205970687U (en) | 2016-08-31 | 2016-08-31 | Bush assembly after swing arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621023829.4U CN205970687U (en) | 2016-08-31 | 2016-08-31 | Bush assembly after swing arm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205970687U true CN205970687U (en) | 2017-02-22 |
Family
ID=58039478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621023829.4U Active CN205970687U (en) | 2016-08-31 | 2016-08-31 | Bush assembly after swing arm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205970687U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111533966A (en) * | 2020-05-12 | 2020-08-14 | 宁波永信汽车部件制造有限公司 | Swing arm rear bushing and preparation method thereof |
| CN112789428A (en) * | 2018-10-01 | 2021-05-11 | Dtr Vms有限公司 | Bushing |
-
2016
- 2016-08-31 CN CN201621023829.4U patent/CN205970687U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112789428A (en) * | 2018-10-01 | 2021-05-11 | Dtr Vms有限公司 | Bushing |
| CN111533966A (en) * | 2020-05-12 | 2020-08-14 | 宁波永信汽车部件制造有限公司 | Swing arm rear bushing and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |