CN203098192U - Electric vacuum pump double-layer vibration isolation device - Google Patents
Electric vacuum pump double-layer vibration isolation device Download PDFInfo
- Publication number
- CN203098192U CN203098192U CN 201220629792 CN201220629792U CN203098192U CN 203098192 U CN203098192 U CN 203098192U CN 201220629792 CN201220629792 CN 201220629792 CN 201220629792 U CN201220629792 U CN 201220629792U CN 203098192 U CN203098192 U CN 203098192U
- Authority
- CN
- China
- Prior art keywords
- vacuum pump
- vibration isolator
- bolt
- support
- nut
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Vibration Prevention Devices (AREA)
Abstract
The utility model relates to an electric vacuum pump double-layer vibration isolation device, comprising a first rubber vibration isolator, a metal limit sleeve, a bolt, a vacuum pump, a support and a second vibration isolator, wherein an annular groove is arranged on the first rubber vibration isolator; a through hole is formed in the center of the first rubber vibration isolator; the metal limit sleeve is arranged in the first rubber vibration isolator through the through hole; the bolt is arranged in the metal limit sleeve in a penetrating way; a nut is arranged on the bottom of the bolt; the lifting lug of the vacuum pump is arranged in the annular groove; the support is arranged on the first rubber vibration isolator; the support and the vacuum pump are spaced; the support is closer to the nut than the vacuum pump; and the second vibration isolator is arranged between the support and the nut. According to the double-layer vibration isolation device, the interior noise problem in the braking process of a vehicle can be well solved, the interior driving noise environment can be greatly improved, the driving integrated quality of the vehicle can be improved, and better practicability can be realized.
Description
Technical field
The utility model relates to car load vibration, noiseproof feature exploitation and electrodynamic braking vacuum booster pump attachment design field, particularly a kind ofly solves the electric vacuum pump double-layer vibration isolating device that electric vacuum pump causes the vibration noise problem.
Background technique
In recent years, in more and more electric vacuum pump auxiliary force aid system for braking degree of vacuum of setting up in braking process that adopt on the passenger car.Usually electric vacuum pump is fixed on the support by bolt connecting mode, adopt single-layer partiting polarization, Fig. 1 is the schematic diagram of single-layer partiting polarization system, vacuum pump can be considered as a mass m1, vibration isolator can be considered as an elastomer k1, and support can be considered ground, so according to theory, the vibration that mass m1 produces is delivered to ground by elastomer k1, and surface vibration is less than the vibration of mass m1 apparently.Be delivered to the power F on the basis
TBe called transmissibility TR with the ratio of the amplitude of excitation force F, shown in the following formula of relation of itself and mass quality and vibration isolator elasticity coefficient:
Wherein m1 is the quality of mass, and k1 is the elasticity coefficient of vibration isolator, and ω is the excited frequency of vacuum pump.
In theory, by choose reasonable vibration isolator elasticity coefficient, can guarantee TR＜1.But in actual applications,, can not satisfy the requirement of travelling comfort in the car because the relation of bolt connecting mode makes single-layer partiting polarization can not reach the vibration isolation requirement.Certain car when stepping on brake petal, can obviously be experienced the irritating " " sound that produces when vacuum pump is worked in the process of moving in the passenger cabin.As shown in Figure 2, its Placement adopts single-layer partiting polarization: separate with first rubber vibration isolator 1 between vacuum pump 6 hangers and the support 7, have an annular groove by the upper end in the middle of first rubber vibration isolator 1, vacuum pump 6 hangers are stuck in this circular groove; First rubber vibration isolator, 1 center has through hole, and metal spacing collar 3 is installed in this through hole, the amount of deformation of restriction rubber pad; Bolt 4 passes the metal spacing collar, and the vacuum pump 6 and first rubber vibration isolator 1 are fixed on the support 7, and set screw nut 5 is welded on support 7 lower surfaces.
Fig. 3 is the schematic diagram of this single-layer partiting polarization system.In this vibrating isolation system, screw bolt and nut can be considered as mass m2, and support can be considered ground, and owing to nut is welded on the support, so mass 2 can be considered as directly linking to each other with ground.In this vibration isolation scheme, behind nut screwing clamping, the vibration isolator circular groove is easy to compacted with upper part, the vibration that the electrodynamic braking vacuum pump produces is directly delivered to screw bolt and nut, because nut and support welding, the vibrational energy that the electrodynamic braking vacuum pump produces is delivered to support by metal spacing collar, bolt, this paths of nut.Be delivered to the amplitude F of the power on the basis
TBe called transmissibility TR with the ratio of the amplitude of excitation force F, shown in the following formula of relation of itself and mass quality and vibration isolator elasticity coefficient:
In addition because the relation of spatial arrangement, coaming plate and left longeron corner were nearer from the passenger cabin before this support was welded on, thus vibrational energy be directly delivered to by support before on the coaming plate, preceding coaming plate radiated noise forms secondary air sound in the passenger cabin.In addition, the gap between metal spacing collar and support mounting hole is little, and the metal spacing collar rocks in mounting hole after being subjected to the vacuum pump excitation, also can produce noise.Therefore, under this position, this vibration isolation scheme can not effectively reduce the vibration noise problem that electric vacuum pump causes, can not satisfy travelling comfort requirement in the car.
So, press at present and propose a kind of modified model vibrating isolation system to overcome the above problem that exists in the prior art.
The model utility content
The purpose of this utility model is to provide a kind of vibration isolation of vehicle in electric vacuum booster pump work process and electric vacuum pump double-layer vibration isolating device of noise transfer problem of solving.
For solving the problems of the technologies described above, the utility model electric vacuum pump double-layer vibration isolating device comprises: first rubber vibration isolator, on described first rubber vibration isolator, be provided with annular groove, and be provided with through hole at the center of described first rubber vibration isolator; The metal spacing collar, described metal spacing collar is arranged in described first rubber vibration isolator by described through hole; Bolt, described bolt are arranged in described metal spacing collar, are provided with nut in the bottom of described bolt; Vacuum pump, the hanger of described vacuum pump are arranged in the described annular groove; Support, described support is arranged on first rubber vibration isolator, and described support and described vacuum pump are to be provided with at interval, and described support is with respect to the close more described nut of described vacuum pump; Between described support and described nut, be provided with second rubber vibration isolator.
Between described support and described bolt, also further be provided with the vibration isolator raised lip.The thickness of described first rubber vibration isolator between described vacuum pump and the described bolt is 10mm.The reach of described bolt is 11.5mm.Described bolt and described metal spacing collar design for integral type.
The utility model electric vacuum pump double-layer vibration isolating device has been thickeied first rubber vibration isolator between vacuum pump and the bolt, vibration transfer path between effective isolated vacuum pump and bolt, between nut and support, increase by one second rubber vibration isolator simultaneously, effectively isolate the vibration transfer path between bolt nut and support, two vibration isolators form double-layer vibration isolating system, and this double-layer vibration isolating system has effectively been isolated the vacuum pump vibration by the bang path between nut and support.In addition, design vibration isolator raised lip between bolt and support mounting hole is avoided producing interference generation noise with support after the bolt excited target.
The utility model is optimized bolt, be mainly reflected in following two aspects: at first be to have optimized reach, when nut is screwed to screw tip locking, both guaranteed the not compacted vibration isolating effect that influences of each vibration isolator, the intermediate pump that can guarantee again to travel can not rock with vehicle body interferes the generation abnormal sound; Secondly metal spacing collar and bolt are become one, make it can satisfy position-limiting action, can not rock the generation noise again.By the optimization of above two aspects, both guaranteed that vibration isolator fully plays the vibration isolation effect, can satisfy the bolt positioning requirements again.
The utility model creatively adopts the double-layer vibration isolating system design, the vibration transfer path of one of them vibration isolator isolated vacuum pump and support, two vibration isolators constitute double-layer vibration isolating system in addition, isolated the bang path between bolt and nut and support, favorable damping noise reduction in the car when having guaranteed the vacuum pump running.
Double-layer vibration isolating system of the present utility model has solved the internal car noise problem of vehicle in braking process well, has improved greatly and has driven noise circumstance in the car, has improved the vehicle drive integrated quality, has good practicability.
Description of drawings
Fig. 1 is a single-layer partiting polarization mechanics of system schematic diagram.
Fig. 2 is a prior art single-layer partiting polarization system architecture sectional view.
Fig. 3 is prior art single-layer partiting polarization system architecture mechanics principle figure.
Fig. 4 is the utility model electric vacuum pump double-layer vibration isolating apparatus structure sectional view.
Fig. 5 is the utility model electric vacuum pump double-layer vibration isolating device mechanics principle figure.
The 1-first rubber vibration isolator 2-annular groove 3-metal spacing collar
4-bolt 5-nut 6-vacuum pump
The 7-support 8-second rubber vibration isolator 9-vibration isolator raised lip
Embodiment
Below in conjunction with accompanying drawing the utility model electric vacuum pump double-layer vibration isolating device is described in further detail.
As shown in Figure 4, the utility model electric vacuum pump 6 double-layer vibration isolating devices comprise: first rubber vibration isolator 1, on first rubber vibration isolator 1, be provided with annular groove 2, and be provided with through hole at the center of first rubber vibration isolator 1; Metal spacing collar 3, metal spacing collar 3 is arranged in first rubber vibration isolator 1 by through hole; Bolt 4, bolt 4 is arranged in metal spacing collar 3, and bolt 4 and metal spacing collar 3 are for integral type designs, and the reach of bolt 4 is 11.5mm, is provided with nut 5 in the bottom of bolt 4; Vacuum pump 6, the hanger of vacuum pump 6 are arranged in the annular groove 2, and the thickness of first rubber vibration isolator 1 between vacuum pump 6 and the bolt 4 is 10mm; Support 7, support 7 are arranged on first rubber vibration isolator 1, and support 7 is to be provided with at interval with vacuum pump 6, and support 7 is with respect to the close more nut 5 of vacuum pump 6; Between support 7 and nut 5, be provided with second rubber vibration isolator 8, between support 7 and bolt 4, also further be provided with vibration isolator raised lip 9.
First rubber vibration isolator 1 and second rubber vibration isolator, 8 usefulness rubber are made, first rubber vibration isolator 1 and second rubber vibration isolator 8 are cylindric, the center has through hole, separate with first rubber vibration isolator 1 between vacuum pump 6, bolt 4 and the support 7, increase by second rubber vibration isolator 8 between nut 5 and the support 7; First rubber vibration isolator 1 and second rubber vibration isolator, 8 centers have through hole, and bolt 4 passes through hole, and vacuum pump 6 and first rubber vibration isolator 1 and second rubber vibration isolator 8 are fixed on the support 7.Bolt 4 and metal spacing collar 3 are become one, and bolt 4 can satisfy position-limiting action, can not rock the generation noise again.Bolt 4 reaches when nut 5 is screwed to screw tip locking, can guarantee that first rubber vibration isolator 1 and second rubber vibration isolator 8 are not compacted through optimizing, and can guarantee again that vacuum pump 6 can not rock to strike vehicle body and produce abnormal sound.Design vibration isolator raised lip 9 between bolt 4 and support 7 mounting holes prevents to produce interference generation noise with support 7 after bolt 4 excited target.
As Fig. 5 is the schematic diagram of the utility model vibrating isolation system, and in this vibrating isolation system, screw bolt and nut can be considered as mass m2.The vibration that mass m1 produces is delivered to ground by a vibration isolator k1, is delivered to mass m2 by a vibration isolator k2 simultaneously, and mass m2 vibration is delivered to ground by a vibration isolator k3 again.Wherein vibration isolator k2, k3 have constituted a vibrating isolation system, and this vibrating isolation system and vibration isolator k1 together constitute double-layer vibration isolating system.Be delivered to the amplitude F of the power on the basis
TBe called transmissibility TR with the ratio of the amplitude of excitation force F, shown in the following formula of relation of itself and mass quality and vibration isolator elasticity coefficient:
Wherein m1, m2 are the quality of mass, and k1, k2, k3 are the elasticity coefficient of vibration isolator, and ω is the excited frequency of vacuum pump; By selecting the vibration isolator elasticity coefficient can guarantee TR＜1 easily.
The utility model electric vacuum pump double-layer vibration isolating device has been thickeied first rubber vibration isolator between vacuum pump and the bolt, vibration transfer path between effective isolated vacuum pump and bolt, between nut and support, increase by one second rubber vibration isolator simultaneously, effectively isolate the vibration transfer path between bolt nut and support, two vibration isolators form double-layer vibration isolating system, and this double-layer vibration isolating system has effectively been isolated the vacuum pump vibration by the bang path between nut and support.In addition, design vibration isolator raised lip between bolt and support mounting hole is avoided producing interference generation noise with support after the bolt excited target.
The utility model is optimized bolt, be mainly reflected in following two aspects: at first be to have optimized reach, when nut is screwed to screw tip locking, both guaranteed the not compacted vibration isolating effect that influences of each vibration isolator, the intermediate pump that can guarantee again to travel can not rock with vehicle body interferes the generation abnormal sound; Secondly metal spacing collar and bolt are become one, make it can satisfy position-limiting action, can not rock the generation noise again.By the optimization of above two aspects, both guaranteed that vibration isolator fully plays the vibration isolation effect, can satisfy the bolt positioning requirements again.
The utility model creatively adopts the double-layer vibration isolating system design, the vibration transfer path of one of them vibration isolator isolated vacuum pump and support, two vibration isolators constitute double-layer vibration isolating system in addition, isolated the bang path between bolt and nut and support, favorable damping noise reduction in the car when having guaranteed the vacuum pump running.
Double-layer vibration isolating system of the present utility model has solved the internal car noise problem of vehicle in braking process well, has improved greatly and has driven noise circumstance in the car, has improved the vehicle drive integrated quality, has good practicability.
Below the preferred embodiment of the utility model having been created specifies, but the utility model is not limited to embodiment, those of ordinary skill in the art also can make all modification that is equal to or replacement under the prerequisite of the utility model creative spirit, modification that these are equal to or replacement all are included in the application's the scope.
Claims (5)
1. electric vacuum pump double-layer vibration isolating device comprises:
First rubber vibration isolator is provided with annular groove on described first rubber vibration isolator, be provided with through hole at the center of described first rubber vibration isolator;
The metal spacing collar, described metal spacing collar is arranged in described first rubber vibration isolator by described through hole;
Bolt, described bolt are arranged in described metal spacing collar, are provided with nut in the bottom of described bolt;
Vacuum pump, the hanger of described vacuum pump are arranged in the described annular groove;
Support, described support is arranged on first rubber vibration isolator, and described support and described vacuum pump are to be provided with at interval, and described support is with respect to the close more described nut of described vacuum pump;
It is characterized in that, between described support and described nut, be provided with second rubber vibration isolator.
2. electric vacuum pump double-layer vibration isolating device according to claim 1 is characterized in that, also further is provided with the vibration isolator raised lip between described support and described bolt.
3. electric vacuum pump double-layer vibration isolating device according to claim 1 is characterized in that the thickness of described first rubber vibration isolator between described vacuum pump and the described bolt is 10mm.
4. electric vacuum pump double-layer vibration isolating device according to claim 1 is characterized in that the reach of described bolt is 11.5mm.
5. electric vacuum pump double-layer vibration isolating device according to claim 1 is characterized in that, described bolt and described metal spacing collar design for integral type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220629792 CN203098192U (en) | 2012-11-26 | 2012-11-26 | Electric vacuum pump double-layer vibration isolation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220629792 CN203098192U (en) | 2012-11-26 | 2012-11-26 | Electric vacuum pump double-layer vibration isolation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203098192U true CN203098192U (en) | 2013-07-31 |
Family
ID=48849599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220629792 Expired - Fee Related CN203098192U (en) | 2012-11-26 | 2012-11-26 | Electric vacuum pump double-layer vibration isolation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203098192U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108518340A (en) * | 2018-05-23 | 2018-09-11 | 武汉麦康德设备有限公司 | Two buckets are nested shape marine pump group vibration isolation mounts |
| CN108626108A (en) * | 2018-05-23 | 2018-10-09 | 武汉麦康德设备有限公司 | Three buckets are nested shape marine pump group vibration isolation mounts |
| CN109823327A (en) * | 2018-12-29 | 2019-05-31 | 浙江零跑科技有限公司 | A kind of new energy vehicle electric vacuum pump damped noise reduction device and method |
| CN111963408A (en) * | 2019-05-20 | 2020-11-20 | 上海汽车集团股份有限公司 | Car and electron vacuum pump vibration isolation system thereof |
| CN114838075A (en) * | 2022-04-26 | 2022-08-02 | 中国工程物理研究院总体工程研究所 | Integrated structure of metal vibration isolator and connecting product and use method |
-
2012
- 2012-11-26 CN CN 201220629792 patent/CN203098192U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108518340A (en) * | 2018-05-23 | 2018-09-11 | 武汉麦康德设备有限公司 | Two buckets are nested shape marine pump group vibration isolation mounts |
| CN108626108A (en) * | 2018-05-23 | 2018-10-09 | 武汉麦康德设备有限公司 | Three buckets are nested shape marine pump group vibration isolation mounts |
| CN108518340B (en) * | 2018-05-23 | 2024-01-26 | 武汉麦康德设备有限公司 | Two-bucket stacked pump set vibration isolation base for ship |
| CN108626108B (en) * | 2018-05-23 | 2024-01-30 | 武汉麦康德设备有限公司 | Pump set vibration isolation base for three-bucket stacking ship |
| CN109823327A (en) * | 2018-12-29 | 2019-05-31 | 浙江零跑科技有限公司 | A kind of new energy vehicle electric vacuum pump damped noise reduction device and method |
| CN109823327B (en) * | 2018-12-29 | 2020-05-29 | 浙江零跑科技有限公司 | New energy vehicle electric vacuum pump shock absorption and noise reduction device and method |
| CN111963408A (en) * | 2019-05-20 | 2020-11-20 | 上海汽车集团股份有限公司 | Car and electron vacuum pump vibration isolation system thereof |
| CN114838075A (en) * | 2022-04-26 | 2022-08-02 | 中国工程物理研究院总体工程研究所 | Integrated structure of metal vibration isolator and connecting product and use method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203098192U (en) | Electric vacuum pump double-layer vibration isolation device | |
| CN205086908U (en) | Shock attenuation fixed bolster of electron vacuum pump | |
| CN101372201B (en) | Gear box suspension cushion | |
| CN104786811A (en) | Engine rear mounting support and automobile | |
| CN202294266U (en) | Transmission suspension installation structure and automobile | |
| CN204592112U (en) | Back axle mass bumper | |
| CN102011831B (en) | Left suspension damping device for motor of electric automobile | |
| CN103921845A (en) | Shock-absorbing bushing for auxiliary frame | |
| CN203766489U (en) | Car radiator supporting system | |
| CN201882153U (en) | Reinforcing structure of front shock absorber of automobile | |
| CN202685899U (en) | Support structure for automobile suspension mounting bracket | |
| CN204415119U (en) | A kind of automobile power assembly suspending | |
| CN202088922U (en) | Elastic hinge of vehicle overturn seat support | |
| CN203681244U (en) | Suspension stand bar | |
| CN202213627U (en) | Vehicle frame intermediate cross beam serving as transmission shaft middle bearing support | |
| CN201980079U (en) | Gearbox suspension soft mat assembly | |
| CN103287247A (en) | Suspension rubber mat | |
| CN203637548U (en) | Box-type limiting engine suspension assembly | |
| CN201575103U (en) | Flat axle-mounted suspension cushion | |
| CN202320327U (en) | Power chassis for heavy mining dumper | |
| CN202399880U (en) | Bushing type engine suspension system | |
| CN202944436U (en) | Back auxiliary frame installation structure | |
| CN202368339U (en) | Engine suspension device | |
| CN201808425U (en) | Commercial vehicle top-mounted evaporator installation structure | |
| CN203793109U (en) | Automobile engine support |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130731 Termination date: 20201126 |