CN101769354A - Power assembly suspension device - Google Patents

Power assembly suspension device Download PDF

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Publication number
CN101769354A
CN101769354A CN 201010110476 CN201010110476A CN101769354A CN 101769354 A CN101769354 A CN 101769354A CN 201010110476 CN201010110476 CN 201010110476 CN 201010110476 A CN201010110476 A CN 201010110476A CN 101769354 A CN101769354 A CN 101769354A
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CN
China
Prior art keywords
main spring
overcoat
assembly suspension
dynamic assembly
interstage bushing
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Granted
Application number
CN 201010110476
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Chinese (zh)
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CN101769354B (en
Inventor
李扬
司凯中
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Chery Automobile Co Ltd
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Chery Automobile Co Ltd
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Priority to CN 201010110476 priority Critical patent/CN101769354B/en
Publication of CN101769354A publication Critical patent/CN101769354A/en
Application granted granted Critical
Publication of CN101769354B publication Critical patent/CN101769354B/en
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Abstract

The invention relates to a suspension vibration damping device, in particular to a power assembly suspension device for a vehicle, which has simple structure, reliable vibration damping and noise reducing performance and long service life. The device comprises an inner sleeve, an outer sleeve and a middle liner between the inner sleeve and the outer sleeve, a first main spring is arranged between the inner sleeve and the middle liner, a second main spring is arranged between the middle liner and the outer sleeve, at least one of the inner sleeve, the outer sleeve and the middle liner is in a variable diameter shape; when power assembly vibration generate level or vertical acting force for the suspension device, the variable diameter part can provide the level or vertical acting force to resist external vibration. The device has good vibration damping and noise reducing effect, long service life, simple structure and convenient process, and the shear failure of the connecting part between each sleeve body and each main spring is avoided.

Description

Dynamic assembly suspension device
Technical field
The present invention relates to suspending shock-absorbing device, specifically is exactly the vehicle engine assembly suspending apparatus.
Background technique
The vibration that power assembly produces is one of main source of producing of car load vibration, and the vibration and the noise problem of car load had main influence.Suspension system mainly starts to control braking force assembly attitude and cuts off the effect of power assembly vibration.
At present, avoid resonance between power assembly and vehicle other system by the design of suspension system, and make power assembly not produce coupling, simultaneously when vehicle is in various operating modes and travels in the vibration of six direction, the amount of movement of power assembly satisfies the requirement of setting, and that tries one's best in other words is little.Briefly be exactly to require suspending cushion rigidity relatively low and can be provided at travelling comfort under these operating modes at idling operation and cruising condition; When operating modes such as special operation condition such as anxious acceleration, the road surface of braking, jolt, higher rigidity should be provided, to keep the position of power assembly, do not allow the generation of situation with obtain better manoeuvring performance and avoid occurring interfering etc.But in actual applications, often because the restriction of the conventional construction of suspending cushion, cause suspending cushion in reasonable reliability scope, can not take into account the coordination of low rigidity and high rigidity, even perhaps guaranteed correlated performance, will do big of the physical dimension of suspending cushion and cost rises then.At present, in known technology, publication number is that CN101059158A, name are called the patent application of " dynamic assembly suspension device ", its main structure is a kind of dynamic assembly suspension device, comprises interior pipe, is located at its outer outer tube, it is characterized in that, be provided with an intervalve between pipe and the outer tube in described, between interior pipe and intervalve, be provided with first elastomer, between intervalve and outer tube, be provided with second elastomer.Its objective is and to be implemented under the various operating modes effectively vibration and noise reducing by technique scheme; At idling operation and general quicken, the cruising condition effect of vibration and noise reduction is good; Good operating stability, force-bearing situation is reasonable, increases the service life.
But its shortcoming is the structure relative complex, and processing technology is wayward, and it is bigger that structure is influenced by processing technology; Because its interior pipe, outer tube and intervalve are isometrical straight tubular body, first, second elastomeric axial end portion is concordant plane, and interior pipe, outer tube, intervalve and first, second elastomer roughly are positioned at sustained height simultaneously; Power assembly is difficult to be delivered on second elastomer in the outside in the vibration and the displacement of vertical direction like this, also just be difficult to the vibration of buffering and obstruct vertical direction, and the vibration of its vertical direction is main vibration source, so the vibration damping of this technology, noise reduction are not good; And shear fracture can be suffered in the vibration of vertical direction because of power assembly or vehicle in the connecting part of first, second elastomer and interior pipe, outer tube and intervalve, and its working life is lower.
Summary of the invention
Purpose of the present invention just provides a kind of simple in structure, vibration damping and anti-acoustic capability is reliable, the dynamic assembly suspension device of long service life.
For achieving the above object, the technical solution used in the present invention is: a kind of dynamic assembly suspension device, comprise interior cover, overcoat and interstage bushing between the two, the first main spring is arranged between interior cover, interstage bushing, the second main spring is arranged between interstage bushing and the overcoat, and at least one is the reducing shape in interior cover or overcoat or the interstage bushing.
As shown from the above technical solution: core of the present invention is, the body that plays support and interconnect function is divided into interior cover, overcoat and interstage bushing three-decker, main spring body is set between the body in twos, has at least one to be the reducing shape among interior cover, overcoat and the interstage bushing three; During assembling, the large diameter end that interior cover is positioned at body connects power assembly, and overcoat connects chassis or other support zone; Two main spring physical efficiencys adapt to the vibration damping needs of different ocsillator strenght scopes, in the power assembly vibration suspending apparatus is produced the extruding of substantially horizontal and the shear action of vertical direction, or the jolting, vibrate when power assembly transmits of vehicle, this reducing portion can provide the active force of level and vertical direction to resist the vibration that comes from the outside, and device has played favorable damping and noise reduction; Main spring body is vertical substantially with this junction plane with the active force that the connecting part of body is subjected to, and has also just avoided the shearing at junction plane place to separate certainly, thereby makes improve the working life of device; And this device simple in structure, profile is smooth, be convenient to processing.
Description of drawings
Fig. 1 is a sectional structure schematic representation of the present invention;
Fig. 2 is that the present invention is assembled to the schematic representation on the vehicle body;
Fig. 3 is a plan view of the present invention;
Fig. 4 is the plan view of the first main spring;
Fig. 5 is the plan view of the first main spring;
Fig. 6 is displacement of the present invention and load relation plotted curve.
Embodiment
As Fig. 1, Fig. 2, shown in Figure 3, a kind of dynamic assembly suspension device, cover 10, overcoat 20 and interstage bushing 30 between the two in comprising, the first main spring 40 is arranged between interior cover 10, interstage bushing 30, the second main spring 50 is arranged between interstage bushing 30 and the overcoat 20, and at least one is the reducing shape in interior cover 10 or overcoat 20 or the interstage bushing 30.
That is to say: the body that plays support and interconnect function is interior cover 10, overcoat 20 and interstage bushing 30 three-deckers, main spring body is set between the body in twos, and at least one is the reducing shape in interior cover 10 or overcoat 20 or the interstage bushing 30; During assembling, a large diameter end that interior cover 10 is positioned at body connects power assembly 70, and overcoat 20 connects chassis 80 or other support zone, as shown in Figure 2; Two main spring physical efficiencys adapt to different operating modes, the vibration damping of just different ocsillator strenght scopes needs, when producing the shear action of the extruding of substantially horizontal and vertical direction in power assembly 70 vibration and to suspending apparatus, the oscillating action power that this reducing portion can provide the active force of level and vertical direction to resist to come from the outside; Simultaneously, the Vehicular vibration that causes because of Uneven road also can be filtered well and cut down by this device, guarantees that power assembly is not seriously vibrated, and has played favorable damping and noise reduction; Main spring body is vertical substantially with this junction plane with the active force that the connecting part of body is subjected to, and has also just avoided the shearing at junction plane place to separate certainly, thereby makes improve the working life of device; And this device simple in structure, profile is smooth, be convenient to processing.
As optimized technical scheme: be installed on power assembly 70 belows with this suspending apparatus, cover 10 upper ends connect power assembly 70 just, when promptly above-below direction was as depicted in figs. 1 and 2 arranged, the interior cover 10 of suspending apparatus, overcoat 20, interstage bushing 30 were the shape that diameter is diminished to the lower end gradually by the upper end; The first main spring 40 is corresponding curved surface with interior cover 10, interstage bushing 30, the second main springs 50 with the junction plane of interstage bushing 30, overcoat 20.
Specifically, interior cover 10 is arranged isometrical through hole 11 for the cone table shape that cross section from top to bottom diminishes gradually along the axle center, and cover 10 was connected with power assembly 70 in through hole 11 can make things convenient for, as wearing for connecting bolt even; The conical surface at interior cover 10 hypomere positions is connected with the first main spring 40, and the upper end, connecting part is higher than the first main spring, 40 other positions to make things convenient for power assembly 70 placements; In cover 10 simple in structure, easy to process and can be effectively cover 10 in the prior art be cooperated with extruding type with the shearing of the first main spring 40 and change the extruding type cooperation into, the junction plane of the cover 10 and first main spring 40 is the conical surface in that is to say, during work, power assembly 70 vibrates and overlaps the certain displacement of 10 generations in making and push the first main spring 40, the first main spring 40 produces elastic strain and offers interior cover 10 support active force obliquely by this conical surface, it balances each other with the active force that produces from power assembly 70 vibrations that interior cover 10 is subjected to joint efforts, promptly the support active force that provides of this conical surface has been resisted the vibration that comes from the outside fully, same reason, the vibration of vehicle is also cut down and is filtered by suspending apparatus, avoid vibration to the power assembly transmission, realized vibration damping, the effect of noise reduction; Simultaneously, the power that acts on this conical surface is vertical substantially with the conical surface, has avoided the connecting part of the interior cover 10 and the first main spring 40 to be sheared the risk of destruction, the working life of having improved device.
Overcoat 20, interstage bushing 30 are set to bowl-type, because bowl-type profile smoothness is convenient to processing and stressed even, the bowl shape can hold the main spring body of proper stiffness simultaneously, the first main spring 40 is corresponding curved surface with the junction plane of interstage bushing 30, the second main springs 50 and overcoat 20 and interstage bushing 30; The epimere of binding site roughly is straight tube or the less shape of gradient, it is big that the hypomere part and the vertical direction angle of binding site more also can be described as gradient, the bound fraction of little gradient can be resisted the vibration of substantially horizontal effectively, and the bound fraction of big gradient mainly plays the vibration of opposing vertical direction; In the axial direction, interior cover is 10 the highest, overcoat is 20 minimum, interstage bushing between the two 30 is placed in the middle, and each bowlshaped mouth is all towards interior cover 10, and just the larger diameter end of major diameter one end of overcoat 20, interstage bushing 30 and interior cover 10 all straight up; To guarantee that each body and main spring body cooperate the support active force that produces obliquely, play favorable damping, noise reduction, reduce the possibility that the connecting part is sheared destruction; Be evenly distributed for stressed, interior cover 10, interstage bushing 30, overcoat 20 and first main spring 40, second main spring 50 central axis coincide; Interstage bushing 30, overcoat 20 middle parts have along the hole of axial length direction up/down perforation, connect so that connected element is worn.
Further, the position, connecting part of the first main spring 40 and interior cover 10 is higher than the position of the connecting part between the first main spring 40 and the interstage bushing 30, promptly the first main spring 40 extends to interstage bushing 30 by interior cover 10 hypomeres under oblique, and its upper-end surface 43 is conical surface shape, and lower end surface 44 is the taper hole shape; Position, connecting part between the second main spring 50 and the interstage bushing 30 is higher than the position, connecting part between the second main spring 50 and the overcoat 20, promptly the second main spring 50 extends to overcoat 20 by interstage bushing 30 under oblique, its upper-end surface is a conical surface shape, and the lower end surface is oblique following, outward extending curved surface; First main spring 40, the second main spring 50 is in from-inner-to-outer, on the position of postponing from top to bottom.So not only make between adjacent main spring body and the body to be subjected to obliquely or downward elastic support effect, antagonism is transmitted the vibration of coming from top to bottom or from bottom to top better, plays vibration damping, noise reduction effect; Can also reduce the material consumption of main spring body, reduce cost of material and installation weight, be beneficial to energy-conserving and environment-protective.
Further, described second lower end of main spring 50 between interstage bushing 30 and overcoat 20 is hat, this hat has the brim of a hat of outside stretching, extension, this the brim of a hat is exactly the table top portion 51 of an indent, it is the basin or the bowl-type of back-off that table top portion 51 also can be understood as, the base in the below of table top portion 51, overcoat 20 and the crossover position place of sidewall along the circumferential direction are provided with spacing pad 60, the middle part height of spacing pad 60, both sides are low and with table top portion 51 apart arrangement of the second main spring, 50 lower ends; As seen, the shaped upper part of spacing pad 60 is corresponding with the upper and lower position of table top portion 51; The rigidity of spacing pad 60 is greater than the rigidity of the second main spring 50, when the anxious acceleration of automobile or emergency braking or severe jolt, the second main spring 50 is subjected to violent extruding and distortion, this moment, spacing pad 60 can be to the upper support second main spring 50, be provided at the supporting effect under the limited conditions and resist extraneous vibration, avoid the second main spring 50 destroyed, the fatigue life of improving the second main spring 50.
Further, for the rigidity that increases the first main spring 40 and the second main spring 50 poor, so that under different ocsillator strenghts, bring into play vibration damping, noise reduction effect, the vibration damping needs that adapt to the different driving cycles of vehicle, the present invention carries out the difference setting with the rigidity of the first main spring 40 and the second main spring 50, the less main spring body of its rigidity value is played a major role under low speed, low vibration operating mode, at a high speed or automobile suddenly quickens, during emergency braking, the main spring body of low rigidity has reached deformation limit, and this moment, the main spring body of high rigidity played main damping effect.Make the rigidity value difference of two main spring bodies, can select for use the material of different-stiffness to make main spring body, and in conjunction with the purposes of automobile and the material of loading condition selection different-stiffness; The present invention is in order to save cost and to adopt ripe processing technology, two main spring bodies and spacing pad 60 all adopt the rubber material, in principle, the first main spring 40 is identical with the material of the second main spring 50, but specification varies in size, and its rigidity value is different certainly, but in order to increase the difference of its rigidity value, can also adjust its rigidity by changing main spring body structure, for example change the shape of main spring body.
Specifically, the rigidity of the of the present invention first main spring 40 is less than the rigidity of the second main spring 50, this is little because of the first less main spring 40 own rigidity of size, also be convenient to further reduce rigidity, the side face of the of the present invention first main spring 40, just constitute by surrounding with respect to two parallel surfaces 41 of its central axis symmetry and two curved surfaces between two parallel surfaces 41 towards the face of interstage bushing 30, curved surface combines with interstage bushing 30 inwalls with the shape kissing merging of interstage bushing 30, and the curved surface middle part respectively has the guide groove of arranging perpendicular to central axis 42; As shown in Fig. 1,3,4,5, we can say that also the first main spring 40 is to clip two parts by the heavy wall rotary structure of bowl-type along axial length direction left and right symmetrically, offer the guide groove 42 of perforation at the middle part of remaining bowl body then, guide groove 42 radially, just arrange perpendicular to the direction of axial length, and the opening from-inner-to-outer is oblique to be extended down, just consistent with the bearing of trend of the first main spring 40, has so not only reached the purpose of adjusting first main spring 40 rigidity, and simple in structure, be convenient to processing; Guide groove 42 has also improved the sensitivity of the first main spring 40 under the loading that changes, and improves its effectiveness in vibration suppression; Certainly, above-mentioned guide groove or the shape that relates to are provided with for suitable rigidity is provided, rather than fixedly requirement, and the general fluting rigidity of main spring more at most is more little.
Now in conjunction with Fig. 6, describe the present invention in detail and adopt the main spring body of different-stiffness to cooperate the technique effect that is produced, the synthetic rigidity of of the present invention two main spring bodies is divided into roughly four sections, as four sections curves among Fig. 6; The longitudinal axis of plotted curve is represented different load conditions, just automobile in idling, cruise, quicken, suddenly quicken, braking, impact the different ocsillator strenghts of operating modes such as road traveling, transverse axis is represented the deformation quantity of main spring body of suspending apparatus or the displacement amount of body; On the whole: load is big more, vibration is strong more, and then deformation quantity of this device and displacement amount are big more, and the synthetic rigidity of generation is also big more, to guarantee favorable damping, noise reduction.The A section mainly is at idling operation, this moment, power assembly 70 did not have big vibration, mainly be the torque ripple of motor under the slow-speed of revolution and the slight vibration of itself, the first less main spring 40 of corresponding rigidity produces deformation and plays a supportive role, and opposing is from the vibration of power assembly 70; And cruise, under the accelerating mode, the moment of torsion of power assembly 70 increases, excited frequency increases, amplitude strengthens, and this moment, the first main spring 40 was subjected to stronger external force, produces big even limit compressive deformation, and outwards transmit this active force, at this moment claimed apparatus has higher rigidity and suppresses reversing of power assembly 70 and vibrate, and the second main spring 50 that rigidity is bigger in this process plays the main support effect, and this operating mode is with regard to corresponding B, C section curve characteristic; When jolting the road surface, power assembly 70 is subjected to bigger impact force, this just requires device to have higher rigidity, this moment, spacing pad 60 just played the effect of supporting the second main spring 50, thereby the vibration of buffering and opposing power assembly 70, prevent to collide and the generation of interference phenomenon, and prevent that the second main spring 50 is destroyed, the corresponding D section of this process curve characteristic.

Claims (15)

1. dynamic assembly suspension device, comprise interior cover (10), overcoat (20) and interstage bushing (30) between the two, it is characterized in that: the first main spring (40) is arranged between interior cover (10), interstage bushing (30), the second main spring (50) is arranged between interstage bushing (30) and the overcoat (20), and at least one is the reducing shape in interior cover (10) or overcoat (20) or the interstage bushing (30).
2. dynamic assembly suspension device according to claim 1 is characterized in that: cover (10), overcoat (20) and interstage bushing (30) are the reducing shape in described.
3. dynamic assembly suspension device according to claim 2 is characterized in that: cover (10), overcoat (20) and interstage bushing (30) are the shape that diameter is diminished to the lower end gradually by the upper end in described.
4. dynamic assembly suspension device according to claim 3 is characterized in that: the position is the highest, overcoat (20) is minimum for cover (10) in described, the placed in the middle and three's central axes of interstage bushing between the two (30).
5. according to any described dynamic assembly suspension device of claim 1 to 4, it is characterized in that: the rigidity of the first main spring (40) and the second main spring (50) small one and large one.
6. dynamic assembly suspension device according to claim 5 is characterized in that: at least one is a bowl-type in cover (10), overcoat (20) and the interstage bushing (30) between the two in described; Each parts middle part have up/down perforation, wear the hole that connects for connected element.
7. dynamic assembly suspension device according to claim 6 is characterized in that: described overcoat (20) and interstage bushing (30) they are bowl-type, the conical surface shape of the hypomere outer wall of interior cover (10) for diminishing gradually from top to bottom, and endoporus is isometrical through hole.
8. dynamic assembly suspension device according to claim 7 is characterized in that: described bowl-type epimere part is vertical or gradient is little, and hypomere part gradient is big.
9. dynamic assembly suspension device according to claim 8 is characterized in that: the described first main spring (40) and the second main spring (50) are in from inside to outside, on the top-down position of postponing and with upper and lower section of described bowl-type bound fraction is arranged all.
10. dynamic assembly suspension device according to claim 9, it is characterized in that: there is the table top portion (51) of an indent lower end of the described second main spring (50), the base in the below of table top portion (51), the overcoat (20) and the crossover position place of sidewall arrange spacing pad (60), and middle part height, the both sides of spacing pad (60) are low; Described spacing pad (60) and table top portion (51) apart arrangement.
11. dynamic assembly suspension device according to claim 10, it is characterized in that: the lower end that the described second main spring (50) is positioned between overcoat (20) and the interstage bushing (30) is the hat of band eaves, described table top portion (51) is the brim of a hat position, and the upper-end surface that the second main spring (50) is positioned between overcoat (20) and the interstage bushing (30) is a conical surface shape.
12. dynamic assembly suspension device according to claim 5 is characterized in that: described first main spring (40) rigidity is less than the rigidity of the second main spring (50).
13. dynamic assembly suspension device according to claim 12 is characterized in that: have guide groove (42) on the described first main spring (40) and/or the second main spring (50).
14. dynamic assembly suspension device according to claim 13, it is characterized in that: the side face of the described first main spring (40) is by surrounding formation with respect to two parallel surfaces (41) of its central axis symmetry and two curved surfaces between two parallel surfaces (41), and the shape of described curved surface and interstage bushing (30) inwall matches and its middle part is provided with guide groove (42).
15. dynamic assembly suspension device according to claim 14 is characterized in that: the upper-end surface (43) of the described first main spring (40) is a conical surface shape, and lower end surface (44) are the taper hole shape, and interstage bushing (30) is pointed in the oblique below of the opening of guide groove (42).
CN 201010110476 2010-01-30 2010-01-30 Power assembly suspension device Active CN101769354B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201010110476 CN101769354B (en) 2010-01-30 2010-01-30 Power assembly suspension device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201010110476 CN101769354B (en) 2010-01-30 2010-01-30 Power assembly suspension device

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CN101769354A true CN101769354A (en) 2010-07-07
CN101769354B CN101769354B (en) 2013-10-16

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Application Number Title Priority Date Filing Date
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109501565A (en) * 2018-11-27 2019-03-22 上汽通用汽车有限公司 Suspending apparatus for driving motor and the electric vehicle including it
CN111692258A (en) * 2020-05-18 2020-09-22 北京智天新航科技有限公司 Shock-resistant rubber shock absorber

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101059158A (en) * 2006-04-18 2007-10-24 宁波拓普声学振动技术有限公司 Dynamic assembly suspension device
CN201227999Y (en) * 2008-05-06 2009-04-29 株洲时代新材料科技股份有限公司 Rubber metal layer spring of urban light rail system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109501565A (en) * 2018-11-27 2019-03-22 上汽通用汽车有限公司 Suspending apparatus for driving motor and the electric vehicle including it
CN109501565B (en) * 2018-11-27 2021-11-26 上汽通用汽车有限公司 Suspension device for driving motor and electric vehicle comprising same
CN111692258A (en) * 2020-05-18 2020-09-22 北京智天新航科技有限公司 Shock-resistant rubber shock absorber
CN111692258B (en) * 2020-05-18 2021-12-03 北京智天新航科技有限公司 Shock-resistant rubber shock absorber

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