CN203522416U - Noise reducing structure of wheel hub motor - Google Patents
Noise reducing structure of wheel hub motor Download PDFInfo
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- CN203522416U CN203522416U CN201320637763.8U CN201320637763U CN203522416U CN 203522416 U CN203522416 U CN 203522416U CN 201320637763 U CN201320637763 U CN 201320637763U CN 203522416 U CN203522416 U CN 203522416U
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- wheel hub
- noise
- reducing structure
- connecting hole
- hub motor
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- 238000002955 isolation Methods 0.000 claims description 19
- 239000000463 material Substances 0.000 claims description 6
- 239000004677 Nylon Substances 0.000 claims description 5
- 229920001778 nylon Polymers 0.000 claims description 5
- 239000004814 polyurethane Substances 0.000 claims description 5
- 229920002635 polyurethane Polymers 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 239000000806 elastomer Substances 0.000 description 2
- 230000003301 hydrolyzing effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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Abstract
The utility model provides a noise reducing structure of a wheel hub motor and belongs to the machinery technical field. With the noise reducing structure of the wheel hub motor adopted, technical problems such as large noise of an existing wheel hub motor can be solved. The wheel hub motor comprises a wheel hub edge cover and a fixing shaft which penetrates the axis of the wheel hub edge cover. An output gear and an inner gear ring connected with the output gear are sleeved on the fixing shaft. The noise reducing structure comprises a plurality of connecting holes 1 which are arranged on the inner gear ring; the wheel hub edge cover is provided with connecting holes 2 which are in one-to-one correspondence with the connecting holes 1; the noise reducing structure further comprises a plurality of connecting pins; two ends of each connecting pin are respectively inserted in the connecting hole 1 and the connecting hole 2; and cushion sleeves which are sleeved on the connecting pins are arranged between the connecting holes 2 and the connecting pins. The noise reducing structure of the wheel hub motor of the utility model has the advantages of low noise, long service life and the like.
Description
Technical field
The utility model belongs to field of mechanical technique, relates to a kind of noise-reducing structure of wheel hub motor.
Background technology
New forms of energy car has become now automobile industry and has had much prospective field, and the Driving technique of new forms of energy vehicle and traditional combustion engine automobile have no small difference, and wherein have a class Driving technique to have very large development prospect, wheel hub motor technology that Here it is, wheel hub motor technology claims again wheel inner electric machine technology, its maximum feature is all incorporated into power, transmission and brake apparatus in wheel hub exactly, therefore the mechanical part of motor vehicle is simplified greatly.
In Chinese patent [201120268986.2], a kind of wheel hub electric motor of electric vehicle is disclosed, it has solved, and existing wheel hub electric motor of electric vehicle complex structure, versatility are poor, production cost high-technology problem, this wheel hub electric motor of electric vehicle, comprise rotor, stator, have the hub body of cavity and be located in the fixed axis that hub body axle center is located, rotor and stator are positioned at the cavity of hub body; On fixed axis, be arranged with input gear axle, one end of described input gear axle is connected mutually with rotor, the other end of input gear axle is connected with hub body by speed change ordinary gear transmission group, input gear axle and speed change ordinary gear transmission group are all positioned at the cavity of hub body, have simple in structure, the advantage such as production cost is low, simplicity of design; But, ring gear is as the moment of torsion of wheel hub motor being passed to the connector of hub body, as to sing between ring gear and hub body be that rigidity contacts, certainly will cause noise that in the cavity of hub body, each drive disk assembly produces, vibration etc. to be directly passed on hub body, cause noise large, shake the problems such as obvious, affect comfortableness and the useful life of electric motor car.
Summary of the invention
The purpose of this utility model is the problems referred to above that exist for existing technology, and a kind of noise-reducing structure of wheel hub motor is provided, and technical problem to be solved in the utility model is to reduce the mechanicalness noise of wheel hub motor.
The purpose of this utility model can realize by following technical proposal: a kind of noise-reducing structure of wheel hub motor, described wheel hub motor comprises the fixed axis of taking turns hub flange lid and being located in place, wheel hub flange lid axle center, on described fixed axis, be arranged with output gear and the ring gear being connected with output gear, it is characterized in that, described noise-reducing structure comprises that several are arranged on the connecting hole one on ring gear, the described hub flange of taking turns covers and is provided with and described connecting hole one connecting hole two one to one, described noise-reducing structure also comprises several connecting pins, the two ends of described connecting pin are plugged in respectively in described connecting hole one and connecting hole two, between described connecting hole two and connecting pin, be provided with the cushion collar being set on described connecting pin.
Operation principle of the present utility model is: ring gear is the moment of torsion of output gear to be passed to the connection gear ring of wheel hub flange lid, in traditional wheel hub motor, ring gear is generally connected with wheel hub flange lid with output gear by rigidly connected modes such as splines, thereby cause the noise of whole wheel hub motor larger, vibration obviously, for this reason, this noise-reducing structure utilizes several connecting pin fifth wheel hub flange lid and ring gears, then the interior setting of connecting hole two covering at wheel hub flange is set in the cushion collar on connecting pin, the vibration of taking turns between hub flange lid and ring gear is cushioned, thereby reduced the noise that wheel hub motor produces, also the vibrations of wheel hub motor itself have been reduced.
In the noise-reducing structure of above-mentioned a kind of wheel hub motor, described cushion collar is that polyurethane material is made.Requirement for cushion collar is: soft, the good resistance to elevated temperatures of matter and higher endurance life, polyurethane has the advantages such as good tensile strength, tearing toughness, resistance to impact, resistance to wear, weatherability, hydrolytic resistance, oil resistance as elastomer.
In the noise-reducing structure of above-mentioned a kind of wheel hub motor, as another kind of technical scheme, described cushion collar is that nylon material is made.Nylon has good resilience, fatigue resistance and thermal stability, meets the performance requirement of cushion collar in this wheel hub motor.
In the noise-reducing structure of above-mentioned a kind of wheel hub motor, the outer end of described cushion collar has a sheet isolation part, and described isolation part is sandwiched in described wheel between hub flange lid and ring gear, and the two sides of described isolation part lean with wheel hub flange lid and ring gear respectively.Hub flange lid is taken turns in the isolation part of cushion collar and ring gear clamps, on the one hand can be by wheel hub flange lid and ring gear isolation, avoid rigidity contact that vibration is passed to wheel hub flange lid, reduce noise, on the other hand, the degree of utilizing isolation part to be pressed, regulates fixed axis axial dimension, can eliminate the accumulated error of whole wheel hub motor when assembling.
In the noise-reducing structure of above-mentioned a kind of wheel hub motor, described connecting pin comprises a bigger diameter end and a miner diameter end, described miner diameter end is plugged in described connecting hole one, and described bigger diameter end is plugged in described connecting hole two, described miner diameter end and described connecting hole one tight fit.Sheathed cushion collar on bigger diameter end, increases the contact area between cushion collar and connecting pin, strengthens buffering effect.
In the noise-reducing structure of above-mentioned a kind of wheel hub motor, between described bigger diameter end and the bottom of connecting hole two, there is gap.This gap can avoid connecting pin to contact with wheel hub flange lid rigidity, thereby reduces noise.
In the noise-reducing structure of above-mentioned a kind of wheel hub motor, the outer wall tight fit of the inwall of described cushion collar and described connecting pin, the sidewall tight fit of the outer wall of described cushion collar and described connecting hole two.Connecting pin fifth wheel hub flange lid and ring gear, and dynamic transmission, thus need between the two comparatively firmly to connect, to guarantee bonding strength.
In the noise-reducing structure of above-mentioned a kind of wheel hub motor, described connecting hole one has six, and is circumferentially evenly distributed on described ring gear.
Compared with prior art, the utlity model has following advantage:
1, this noise-reducing structure utilizes several connecting pin fifth wheel hub flange lid and ring gears, then the interior setting of connecting hole two covering at wheel hub flange is set in the cushion collar on connecting pin, the vibration of taking turns between hub flange lid and ring gear is cushioned, thereby reduced the noise that wheel hub motor produces, also reduced the vibrations of wheel hub motor itself.
2, hub flange lid is taken turns and ring gear clamps in the isolation part of cushion collar, on the one hand can be by wheel hub flange lid and ring gear isolation, avoid rigidity contact that vibration is passed to wheel hub flange lid, reduce noise, on the other hand, the degree of utilizing isolation part to be pressed, regulates fixed axis axial dimension, can eliminate the accumulated error of whole wheel hub motor when assembling.
Accompanying drawing explanation
Fig. 1 is the structural representation of this wheel hub motor.
Fig. 2 is the enlarged drawing of local A in Fig. 1.
Fig. 3 is the positional structure schematic diagram of this denoising structure in wheel hub motor.
Fig. 4 is the sectional view of this denoising structure.
Fig. 5 is the perspective view of connecting pin in this denoising structure.
Fig. 6 is the perspective view of cushion collar in this denoising structure.
In figure, 1, wheel hub flange lid; 2, fixed axis; 3, ring gear; 41, connecting hole one; 42, connecting hole two; 5, connecting pin; 51, bigger diameter end; 52, miner diameter end; 6, cushion collar; 61, isolation part; 7, output gear.
Embodiment
Be below specific embodiment of the utility model by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiment.
Embodiment mono-:
As Fig. 1, shown in Fig. 3 and Fig. 4, a kind of noise-reducing structure of wheel hub motor, wheel hub motor comprises takes turns hub flange lid 1 and is located in the fixed axis 2 that wheel hub flange covers 1 place, axle center, on fixed axis 2, be arranged with output gear 7 and the ring gear 3 being connected with output gear 7, , noise-reducing structure comprises that several are arranged on the connecting hole 1 on ring gear 3, connecting hole 1 has six, and be circumferentially evenly distributed on ring gear 3, wheel hub flange lid 1 is provided with and connecting hole 1 connecting hole 2 42 one to one, noise-reducing structure also comprises several connecting pins 5, the two ends of connecting pin 5 are plugged in respectively in connecting hole 1 and connecting hole 2 42, between connecting hole 2 42 and connecting pin 5, be provided with the cushion collar 6 being set on connecting pin 5, requirement for cushion collar 6 is: matter is soft, good resistance to elevated temperatures and higher endurance life, in the present embodiment, cushion collar 6 is made for polyurethane material, polyurethane has good tensile strength as elastomer, tearing toughness, resistance to impact, resistance to wear, weatherability, hydrolytic resistance, the advantages such as oil resistance.
Realize the principle of noise reduction: ring gear 3 is the moment of torsion of output gear 7 to be passed to the connection gear ring of wheel hub flange lid 1, in traditional wheel hub motor, ring gear 3 is generally connected with wheel hub flange lid 1 with output gear 7 by rigidly connected modes such as splines, thereby cause the noise of whole wheel hub motor larger, vibration obviously, for this reason, this noise-reducing structure utilizes several connecting pin 5 fifth wheel hub flange lid 1 and ring gears 3, then the interior setting of connecting hole 2 42 on wheel hub flange lid 1 is set in the cushion collar 6 on connecting pin 5, the vibration of taking turns between hub flange lid 1 and ring gear 3 is cushioned, thereby reduced the noise that wheel hub motor produces, also the vibrations of wheel hub motor itself have been reduced.
As shown in Figure 2 and Figure 5, connecting pin 5 comprises a bigger diameter end 51 and a miner diameter end 52, miner diameter end 52 is plugged in connecting hole 1, bigger diameter end 51 is plugged in connecting hole 2 42, miner diameter end 52 and connecting hole one 41 tight fits, and the two sides of isolation part 61 lean with wheel hub flange lid 1 and ring gear 3 respectively, sheathed cushion collar 6 on bigger diameter end 51, increase the contact area between cushion collar 6 and connecting pin 5, strengthen buffering effect.
As shown in Figure 2 and Figure 6, the outer end of cushion collar 6 has a sheet isolation part 61, and isolation part 61 is sandwiched between wheel hub flange lid 1 and ring gear 3.The isolation part 61 of cushion collar 6 is clamped by wheel hub flange lid 1 and ring gear 3, on the one hand can be by wheel hub flange lid 1 and ring gear 3 isolation, avoid rigidity contact that vibration is passed to wheel hub flange lid 1, reduce noise, on the other hand, the degree of utilizing isolation part 61 to be pressed, regulates fixed axis 2 axial dimensions, can eliminate the accumulated error of whole wheel hub motor when assembling.
Between the bottom of bigger diameter end 51 and connecting hole 2 42, there is gap, this gap can avoid connecting pin 5 to cover 1 rigidity and contact with wheel hub flange, thereby reduction noise, the outer wall tight fit of the inwall of cushion collar 6 and connecting pin 5, the sidewall tight fit of the outer wall of cushion collar 6 and connecting hole 2 42, connecting pin 5 fifth wheel hub flange lid 1 and ring gears 3, and dynamic transmission, so need between the two comparatively firmly to connect, to guarantee bonding strength.
Embodiment bis-:
The content of the present embodiment is roughly identical with embodiment mono-, and difference is: cushion collar 6 is made for nylon material.Nylon has good resilience, fatigue resistance and thermal stability, meets the performance requirement of cushion collar 6 in this wheel hub motor.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various modifications or supplements or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Claims (8)
1. the noise-reducing structure of a wheel hub motor, described wheel hub motor comprises the fixed axis (2) of taking turns hub flange lid (1) and being located in place, wheel hub flange lid (1) axle center, on described fixed axis (2), be arranged with output gear (7) and the ring gear (3) being connected with output gear (7), it is characterized in that, described noise-reducing structure comprises that several are arranged on the connecting hole one (41) on ring gear (3), the described hub flange lid (1) of taking turns is provided with and described connecting hole one (41) connecting hole two (42) one to one, described noise-reducing structure also comprises several connecting pins (5), the two ends of described connecting pin (5) are plugged in respectively in described connecting hole one (41) and connecting hole two (42), between described connecting hole two (42) and connecting pin (5), be provided with the cushion collar (6) being set on described connecting pin (5).
2. the noise-reducing structure of wheel hub motor according to claim 1, is characterized in that, described cushion collar (6) is made for polyurethane material.
3. the noise-reducing structure of wheel hub motor according to claim 1, is characterized in that, described cushion collar (6) is made for nylon material.
4. according to the noise-reducing structure of the wheel hub motor described in claim 1 or 2 or 3, it is characterized in that, the outer end of described cushion collar (6) has a sheet isolation part (61), and described isolation part (61) are sandwiched in described wheel between hub flange lid (1) and ring gear (3).
5. the noise-reducing structure of wheel hub motor according to claim 4, it is characterized in that, described connecting pin (5) comprises a bigger diameter end (51) and a miner diameter end (52), described miner diameter end (52) is plugged in described connecting hole one (41), described bigger diameter end (51) is plugged in described connecting hole two (42), described miner diameter end (52) and described connecting hole one (41) tight fit, and the two sides of described isolation part (61) lean with wheel hub flange lid (1) and ring gear (3) respectively.
6. the noise-reducing structure of wheel hub motor according to claim 5, is characterized in that, between described bigger diameter end (51) and the bottom of connecting hole two (42), has gap.
7. according to the noise-reducing structure of the wheel hub motor described in claim 1 or 2 or 3, it is characterized in that, the outer wall tight fit of the inwall of described cushion collar (6) and described connecting pin (5), the sidewall tight fit of the outer wall of described cushion collar (6) and described connecting hole two (42).
8. according to the noise-reducing structure of the wheel hub motor described in claim 1 or 2 or 3, it is characterized in that, described connecting hole one (41) has six, and is circumferentially evenly distributed on described ring gear (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320637763.8U CN203522416U (en) | 2013-10-15 | 2013-10-15 | Noise reducing structure of wheel hub motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320637763.8U CN203522416U (en) | 2013-10-15 | 2013-10-15 | Noise reducing structure of wheel hub motor |
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| Publication Number | Publication Date |
|---|---|
| CN203522416U true CN203522416U (en) | 2014-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320637763.8U Expired - Fee Related CN203522416U (en) | 2013-10-15 | 2013-10-15 | Noise reducing structure of wheel hub motor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107837631A (en) * | 2016-09-19 | 2018-03-27 | 三星电子株式会社 | Air purifier |
-
2013
- 2013-10-15 CN CN201320637763.8U patent/CN203522416U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107837631A (en) * | 2016-09-19 | 2018-03-27 | 三星电子株式会社 | Air purifier |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160512 Address after: 317000, Zhejiang, Linhai City, Jiangnan street, Xia Pu village, Chun Road Patentee after: Linhai Heshili Electric Technology Co.,Ltd. Address before: 318020 No. 76, Xintang garden, Huangyan District, Zhejiang, Taizhou Patentee before: Li Yueyan |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140402 |