CN105774511A - Rubber bushing type engine suspension - Google Patents
Rubber bushing type engine suspension Download PDFInfo
- Publication number
- CN105774511A CN105774511A CN201610037946.4A CN201610037946A CN105774511A CN 105774511 A CN105774511 A CN 105774511A CN 201610037946 A CN201610037946 A CN 201610037946A CN 105774511 A CN105774511 A CN 105774511A
- Authority
- CN
- China
- Prior art keywords
- rubber
- limit structure
- trocar sheath
- upper limit
- sleeve
- 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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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K5/00—Arrangement or mounting of internal-combustion or jet-propulsion units
- B60K5/12—Arrangement of engine supports
- B60K5/1208—Resilient supports
Abstract
The invention relates to a rubber bushing type engine suspension which comprises a support provided with a sleeve and a rubber bushing assembly matched with the sleeve on the support. The rubber bushing assembly of the suspension is composed of an outer casing pipe, an inner casing pipe and a vulcanized rubber component arranged between the outer casing pipe and the inner casing pipe, and the outer casing pipe is provided with a square hole; the vulcanized rubber component comprises an upper limiting structure connected with an outer round rubber ring and a lower limiting structure connected with an inner round rubber ring, the inner wall of the outer round rubber ring is tightly attached to the inner wall of the outer casing pipe, and the outer wall of the inner casing pipe is sleeved with the inner round rubber ring; the upper limiting structure is a square boss and extends out of the square hole in the outer casing pipe; the lower limiting structure is an arc-shaped boss and corresponds/makes contact with the lower face of the upper limiting structure; and the rubber bushing type engine suspension further comprises a herringbone-shaped rubber spring. When the rubber bushing type engine suspension is in a free state, a rubber bushing is in a pre-pressed state, the distance (namely a +Z-direction linear segment) between the upper limiting structure and the lower limiting structure of the rubber bushing is smaller than zero, thus, the suspension fatigue performance is improved, and the suspension reliability is improved.
Description
Technical field
The present invention relates to engine fittings, particularly to a kind of engine mounting with rubber bushing formula with pre-pressing function.
Background technology
Engine mounting refers to the elastomer being connected between power assembly and vehicle body, and it has support, spacing and damping effect, is most important vibration isolation original paper, and the ride comfort of automobile is had a great impact by the quality of its structure.The primary structure form of engine mounting includes following three kinds: one is compression, this kind be the vulcanization of rubber to upper and lower two pieces of panel beatings, volume is smaller, structure is relatively easy, compression stiffness is big in compression suspension, but shearing rigidity is relatively low.Another kind is shearing, and the vulcanization of rubber, to sleeve pipe, is primarily subjected to shearing force, and shearing suspension can provide bigger shearing rigidity, but compression stiffness is little.The third is bush type, and bushing suspending is the structure that rubber and sleeve pipe are sulfided, using the teaching of the invention it is possible to provide bigger radial and axial ratio of rigidity.At present, bushing suspending is used widely on automobile, and when automobile power assembly produces to shake in the excitation of idling moment of torsion, it can be effectively isolated the vibration of electromotor to the transmission of vehicle body or subframe.But, owing to sulfuration process limits, the vertical direction (+Z-direction linearity range) of suspension can not be made too little, causes hop distance on rubber spring excessive, and suffered stretching displacement is excessive, causes that rubber spring fatigue reliability reduces.Have in order to reduce this spacing, reduce+Z-direction linearity range by increasing necking down technique, but be to increase necking down technique also can only reduce+Z-direction linearity range is about 1-2mm, it is impossible to solve problem at all, and cost can be increased.CN204196680U discloses " a kind of power assembly rubber suspension structure ", it includes outside steel bushing, rubber spring, inner core aluminum set, it is characterized in that: the bottom inside outside steel bushing is provided with a lower limit rubber layer, the top outside steel bushing inside corresponding with lower limit rubber layer is installed with a upper limit vulcanization of rubber layer, inside outside steel bushing, extend axially through the suspension of V-structure rubber spring have an inner core aluminum set, described V-structure rubber spring upper end is fixed on inside the outside steel bushing between upper limit vulcanization of rubber layer and lower limit rubber layer, the rubber spring lower end of V-structure is then fixed on inner core aluminum and puts.The advantage of this structure be rubber structure can the vertical and lateral vibration of effective attenuation, can effectively limit again length travel；Use inner core rhombus aluminum inner sleeve, not only alleviate weight, and provide two sulfuration planes for rubber, both solved the shortcoming that rubber vertical stiffness is not enough, and increased again contact area, make stress more balanced, improve the fatigue life of rubber structure.Certainly, this is a kind of good try of art.
Summary of the invention
It is an object of the invention to provide a kind of engine mounting with rubber bushing formula with pre-pressing function, when it is in free state, rubber bushing is in preloading condition, the upper limit structure of rubber bushing and lower limit structure pitch from (namely+Z-direction linearity range) less than zero, thus improving suspension fatigue behaviour, promote suspension reliability.
A kind of engine mounting with rubber bushing formula of the present invention, including setting the rubber bushing assembly that sleeved support coordinates with the sleeve on support, it is characterized in that: described rubber bushing assembly is made up of trocar sheath, inner sleeve, the vulcanite component that is located between trocar sheath and inner sleeve, and described trocar sheath is provided with square opening；Described vulcanite component includes the inwall of the upper limit structure being connected with outer rubber annulus, the lower limit structure being connected with interior rubber ring, described outer rubber annulus and trocar sheath and is close to, and described interior rubber ring is enclosed within the outer wall of described inner sleeve；Described upper limit structure is a square boss and stretches out from the square opening described trocar sheath；Described lower limit structure is an arc cam, corresponding with below described upper limit structure/to contact；Also including the rubber spring in " people " font, the upper end of described rubber spring is connected with the interior rubber ring on described inner sleeve outer wall, and the outer rubber annulus that lower end is close to described outer sleeve inner wall is connected.
Further, described trocar sheath, inner sleeve, upper limit structure, lower limit structure and rubber spring sulfuration are as a whole.
Further, described upper limit structure stretches out size L more than the distance H between upper limit structure and lower limit structure from the square opening trocar sheath.
Further, the trocar sheath of described rubber bushing assembly is connected with the sleeve interference fit on support, and described upper limit structure is under the sleeve lining of support is oppressed, and downward position limiting structure direction is moved, and is close to lower limit structure, forms precommpression.
Further, described inner sleeve and master end support arm are connected.
Present invention advantage compared with prior art is in that:
(1) owing to the upper limit structure of rubber bushing stretches out trocar sheath size L more than the distance H between upper limit structure and lower limit structure from square opening trocar sheath, so that engine mounting assembly can realize pre-pressing function, thus improving the fatigue properties of engine mounting, improve engine mounting reliability.
(2) owing to without reducing+Z-direction linearity range by increase necking down technique, having saved cost, having decreased the quality unstability that unnecessary operation is brought, improve product quality simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the shaft side figure of trocar sheath；
Fig. 3 is the shaft side figure of vulcanite component；
Fig. 4 is that trocar sheath, inner sleeve and rubber bushing vulcanize the schematic diagram being integrated；
Fig. 5 is design sketch after entrucking of the present invention.
In figure: 1-support, 2-trocar sheath, 21-square opening, 3-vulcanite component, 31-upper limit structure, 32-lower limit structure, 33-rubber spring, 4-inner sleeve, 5-master end support arm, L-upper limit structure stretches out the size of trocar sheath, the spacing between H-upper limit structure and lower limit structure.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described in further detail.
Referring to the rubber-bushed engine mounting of one shown in Fig. 1, Fig. 2, Fig. 3 and Fig. 4, including setting the rubber bushing assembly that sleeved support 1 coordinates with the sleeve on support, its prominent substantive distinguishing features is:
Described rubber bushing assembly is made up of trocar sheath 2, inner sleeve 4, the vulcanite component 3 that is located between trocar sheath and inner sleeve, and described trocar sheath is provided with square opening 21；Described vulcanite component 3 includes the inwall of the upper limit structure 31 being connected with outer rubber annulus, the lower limit structure 32 being connected with interior rubber ring, described outer rubber annulus and trocar sheath 2 and is close to, and described interior rubber ring is enclosed within the outer wall of described inner sleeve 4；Described upper limit structure is a square boss and stretches out from the square opening 21 described trocar sheath；Described lower limit structure is an arc cam, corresponding with below described upper limit structure/to contact；Also including the rubber spring 33 in " people " font, the upper end of described rubber spring is connected with the interior rubber ring on described inner sleeve outer wall, and the outer rubber annulus that lower end is close to described outer sleeve inner wall is connected.Described trocar sheath 2, inner sleeve 4, upper limit structure 31, lower limit structure 32 and rubber spring 33 vulcanize as a whole.
Described upper limit structure 31 stretches out size L more than the distance H between upper limit structure 31 and lower limit structure 32 from the square opening 21 trocar sheath.
The trocar sheath 2 of described rubber bushing assembly is connected with the sleeve interference fit on support 1, and described upper limit structure 31 is under the sleeve lining of support is oppressed, and downward position limiting structure 32 direction is moved, and is close to lower limit structure 32, forms precommpression.
Referring to Fig. 5, when this engine mounting uses, described inner sleeve 4 is connected with master end support arm 5.When loading onto car, master end support arm 5 is when being subject to dead load, master end support arm 5, inner sleeve 4, rubber spring 33 and upper limit structure 31 are mobile along-Z-direction (namely straight down), owing to there is precommpression between upper limit structure 31 and lower limit structure 32, the distance H between the upper limit structure 31 after static load and lower limit structure 32 can be made less than 0, such that it is able in reduction vehicle travel process+displacement of Z-direction (namely straight up), reduce the stretching displacement of rubber spring 33, and then improve the fatigue properties of engine mounting, promote the reliability of engine mounting.
Claims (5)
1. a rubber-bushed engine mounting, including setting the rubber bushing assembly that sleeved support (1) coordinates with the sleeve on support, it is characterized in that: described rubber bushing assembly is made up of trocar sheath (2), inner sleeve (4), the vulcanite component (3) that is located between trocar sheath and inner sleeve, and described trocar sheath is provided with square opening (21)；
Described vulcanite component (3) includes the upper limit structure (31) being connected with outer rubber annulus, the lower limit structure (32) being connected with interior rubber ring, the inwall of described outer rubber annulus and trocar sheath (2) is close to, and described interior rubber ring is enclosed within the outer wall of described inner sleeve (4)；Described upper limit structure is a square boss and stretches out from the square opening (21) described trocar sheath；Described lower limit structure is an arc cam, corresponding with below described upper limit structure/to contact；Also including the rubber spring (33) in " people " font, the upper end of described rubber spring is connected with the interior rubber ring on described inner sleeve outer wall, and the outer rubber annulus that lower end is close to described outer sleeve inner wall is connected.
2. rubber-bushed engine mounting according to claim 1, is characterized in that: described trocar sheath (2), inner sleeve (4), upper limit structure (31), lower limit structure (32) and rubber spring (33) vulcanize as a whole.
3. rubber-bushed engine mounting according to claim 1 and 2, is characterized in that: described upper limit structure (31) stretches out size L more than the distance H between upper limit structure (31) and lower limit structure (32) from the square opening (21) trocar sheath.
4. rubber-bushed engine mounting according to claim 1 and 2, it is characterized in that: the trocar sheath (2) of described rubber bushing assembly is connected with the sleeve interference fit on support (1), described upper limit structure (31) is under the sleeve lining of support is oppressed, downward position limiting structure (32) direction is moved, and be close to lower limit structure (32), form precommpression.
5. rubber-bushed engine mounting according to claim 1 and 2, is characterized in that: described inner sleeve (4) and master end support arm (5) are connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610037946.4A CN105774511B (en) | 2016-01-21 | 2016-01-21 | A kind of engine mounting of rubber bushing formula |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610037946.4A CN105774511B (en) | 2016-01-21 | 2016-01-21 | A kind of engine mounting of rubber bushing formula |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105774511A true CN105774511A (en) | 2016-07-20 |
| CN105774511B CN105774511B (en) | 2017-11-28 |
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| CN201610037946.4A Active CN105774511B (en) | 2016-01-21 | 2016-01-21 | A kind of engine mounting of rubber bushing formula |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106476592A (en) * | 2016-11-16 | 2017-03-08 | 重庆小康工业集团股份有限公司 | Power system of electric automobile rear-suspending assembly |
| CN108608858A (en) * | 2016-12-13 | 2018-10-02 | 现代自动车株式会社 | The speed changer bearing with distributed block for vehicle |
| CN111409438A (en) * | 2020-04-30 | 2020-07-14 | 华晨鑫源重庆汽车有限公司 | Solve structure that suspension turn produced abnormal sound |
| WO2020152639A1 (en) | 2019-01-25 | 2020-07-30 | Piaggio & C.S.P.A. | A powertrain mounting assembly |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102022105549A1 (en) | 2022-03-09 | 2023-09-14 | Vibracoustic Se | Elastic bushing bearing |
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| US6199841B1 (en) * | 1999-04-07 | 2001-03-13 | Hutchinson | Torque-damping anti-vibration device |
| JP2005163976A (en) * | 2003-12-04 | 2005-06-23 | Tokai Rubber Ind Ltd | Cylindrical vibration control mount |
| CN101265954A (en) * | 2007-03-12 | 2008-09-17 | 波士坦Crc公司 | Radial flexible liner |
| CN202753754U (en) * | 2012-06-25 | 2013-02-27 | 安徽中鼎减震橡胶技术有限公司 | Engine suspension multi-direction limiting structure |
| CN103963623A (en) * | 2014-05-14 | 2014-08-06 | 安徽江淮汽车股份有限公司 | Pre-compression engine suspension assembly |
| CN203752900U (en) * | 2014-01-22 | 2014-08-06 | 东风商用车有限公司 | Integrated compressing type medium support assembly of transmission shaft |
| CN104553723A (en) * | 2015-01-28 | 2015-04-29 | 重庆长安汽车股份有限公司 | Bushing of vehicle engine suspended cushion assembly |
| CN105121894A (en) * | 2013-06-27 | 2015-12-02 | 住友理工株式会社 | Vibration-proof bush and method for manufacturing vibration-proof bush |
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2016
- 2016-01-21 CN CN201610037946.4A patent/CN105774511B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6199841B1 (en) * | 1999-04-07 | 2001-03-13 | Hutchinson | Torque-damping anti-vibration device |
| JP2005163976A (en) * | 2003-12-04 | 2005-06-23 | Tokai Rubber Ind Ltd | Cylindrical vibration control mount |
| CN101265954A (en) * | 2007-03-12 | 2008-09-17 | 波士坦Crc公司 | Radial flexible liner |
| CN202753754U (en) * | 2012-06-25 | 2013-02-27 | 安徽中鼎减震橡胶技术有限公司 | Engine suspension multi-direction limiting structure |
| CN105121894A (en) * | 2013-06-27 | 2015-12-02 | 住友理工株式会社 | Vibration-proof bush and method for manufacturing vibration-proof bush |
| CN203752900U (en) * | 2014-01-22 | 2014-08-06 | 东风商用车有限公司 | Integrated compressing type medium support assembly of transmission shaft |
| CN103963623A (en) * | 2014-05-14 | 2014-08-06 | 安徽江淮汽车股份有限公司 | Pre-compression engine suspension assembly |
| CN104553723A (en) * | 2015-01-28 | 2015-04-29 | 重庆长安汽车股份有限公司 | Bushing of vehicle engine suspended cushion assembly |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106476592A (en) * | 2016-11-16 | 2017-03-08 | 重庆小康工业集团股份有限公司 | Power system of electric automobile rear-suspending assembly |
| CN108608858A (en) * | 2016-12-13 | 2018-10-02 | 现代自动车株式会社 | The speed changer bearing with distributed block for vehicle |
| WO2020152639A1 (en) | 2019-01-25 | 2020-07-30 | Piaggio & C.S.P.A. | A powertrain mounting assembly |
| EP3914465A4 (en) * | 2019-01-25 | 2022-12-07 | Piaggio&C. S.p.A. | A powertrain mounting assembly |
| CN111409438A (en) * | 2020-04-30 | 2020-07-14 | 华晨鑫源重庆汽车有限公司 | Solve structure that suspension turn produced abnormal sound |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105774511B (en) | 2017-11-28 |
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