CN102761199A - Double-speed wheel hub motor - Google Patents
Double-speed wheel hub motor Download PDFInfo
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- CN102761199A CN102761199A CN2012102026261A CN201210202626A CN102761199A CN 102761199 A CN102761199 A CN 102761199A CN 2012102026261 A CN2012102026261 A CN 2012102026261A CN 201210202626 A CN201210202626 A CN 201210202626A CN 102761199 A CN102761199 A CN 102761199A
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- gear
- wheel hub
- clutch
- sliding pin
- wedge
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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Abstract
The invention discloses a double-speed wheel hub motor which comprises a main shaft, a wheel hub housing and a motor, wherein the motor comprises a stator and a rotor, the rotor is connected with a homodromous constant-speed driving chain, and the homodromous constant-speed driving chain is connected with the wheel hub housing by a clutch; the clutch comprises a clutch outer ring, a clutch base, and a large inner gear ring and a small inner gear ring, which are respectively driven by the homodromous constant-speed driving chain with large drive ratio and small drive ratio, the small inner gear ring is arranged in the clutch outer ring, the clutch base is arranged between the clutch outer ring and the small inner gear ring, and is fixed with the wheel hub housing, and the large inner gear ring is fixed with the clutch outer ring; the inner wall and the outer wall of the clutch base are evenly distributed with a plurality of wedge-shaped grooves which are internally provided with balls and are consistent in ball clamping directions according to the periphery; and the double-speed wheel hub motor further comprises a plurality of ball position-changing mechanisms which correspond to the balls in the wedge-shaped grooves of the outer wall one by one, an ejector rob which stops the balls at the width parts of the wedge-shaped grooves in a leaning way, and an electric actuating mechanism for driving the ejector rob to move. The double-speed wheel hub motor is simple in structure, and can change the speed without needing positively and negatively rotating the motor.
Description
Technical field
The present invention relates to a kind of double speed wheel hub motor.
Background technology
Present stage, wheel hub motor was because of it is simple in structure, small and exquisite, transmission efficiency is high, the main flow that has become driving motor of electric vehicle easy for installation, but existing wheel hub motor is single-speed motor mostly, can not change moment of torsion, and therefore moment of torsion is not enough in climbing.Along with technical development, the wheel hub motor of band reduction box appears on the market, and the technology of the wheel hub motor of this band reduction box is comparative maturity, and its use amount constantly rises.But still there is the wide inadequately and not strong problem of climbing capacity of high efficiency range in the wheel hub motor of existing band reduction box in electric speed regulation process, and the reduction box structural redundancy, assembles loaded down with trivial details.In order to address this problem, to have invented on the market and utilized the positive and negative electric motor car double-speed motor that transfers speed change of motor.One Chinese patent application 201010198567.6 discloses a kind of two-speed motor for electric control variable speed electromobile, and this motor can realize utilizing the positive and negative speed change that transfers of motor, and can be through additional transmission mechanism; Control controlled one-way clutch, break off transmission, produce interlocking; Eliminate self-locking, realize reversing.But the shortcoming that this invention exists is a complex structure, and spare and accessory parts are many, and must realize that cost of manufacture and operating cost are all higher through positive and negative the transferring of motor.
Summary of the invention
The present invention seeks to: provide a kind of simple in structure, easy to assembly, and need not the double speed wheel hub motor that the motor forward and backward can realize speed change.
Technical scheme of the present invention is: a kind of double speed wheel hub motor, comprise main shaft, wheel hub shell and motor, motor comprises stator and rotor, said rotor links to each other with constant speed driving-chain in the same way, and in the same way the constant speed driving-chain through clutch with take turns hub shell and link to each other; It is characterized in that said clutch comprises clutch outer, clutch base; And by constant speed driving-chain in the same way with the separately-driven large and small ring gear of large and small gearratio; Said small internal gear is positioned at clutch outer; Clutch base is located between clutch outer and the small internal gear, and fixes with the wheel hub shell, and said big ring gear and clutch outer are fixed; On the inside and outside wall of said clutch base all by circumference evenly distribute some in dress balls and the consistent wedge-shaped impressions of the stuck direction of ball; Also comprise the ball ball modified gear one to one in some and the outer wall wedge-shaped impression, this ball modified gear comprises the ball top is ended at the push rod of wide of wedge-shaped impression and driven the electrical actuators of push rod action.
Further; Be equipped with pin-and-hole in the next door of each wedge-shaped impression on the outer wall of clutch base described in the present invention; Said electrical actuators is an electromagnetic actuator, and it comprises the sliding pin be located in the pin-and-hole, be used to drive sliding pin movable solenoid and be used for the sliding pin back-moving spring that sliding pin resets in pin-and-hole; Said sliding pin is provided with the recess on the band inclined-plane that cooperates with push rod, and when said sliding pin was in first service position, push rod can fall within the recess by elastic force; When sliding pin is driven by solenoid and movable during to second service position, push rod ejects by the inclined-plane on the sliding pin recess.
Certainly, in the embodiment of another kind of electromagnetic actuator, the solenoid that is adopted can be implemented to attract or repel to sliding pin through changing the sense of current, drives sliding pin telescopic movable in pin-and-hole, thereby saves the sliding pin back-moving spring.
Further; Described in the present invention in the same way the constant speed driving-chain comprise the central gear fixing with rotor, be fixed on the main shaft planetary gear carrier and through planetary gear bearing be installed on the planetary gear carrier and with some planetary gears of central gear engagement; Said each planetary gear is duplicate gear; Gear wheel in the said duplicate gear meshes with central gear and big ring gear simultaneously; Pinion in the duplicate gear then meshes with small internal gear, and the gearratio of gear wheel and big ring gear is less than the gearratio of pinion and small internal gear.Because the big or small gear rotational speed in the duplicate gear is identical, so the rotating speed of big ring gear is greater than the rotating speed of small internal gear.
Further preferred; Planetary carrier described in the present invention is tabular support, is preferably plectane, and said plectane is fixed through flat key and main shaft; And said plectane is provided with the planetary gear pilot hole, and said planetary gear is mounted on the planetary gear pilot hole through planetary gear bearing.
Further preferred, planetary quantity described in the present invention is three, and is uniformly distributed in around the central gear.
Further preferred, central gear described in the present invention, planetary gear or ring gear are highstrenghtpiston's gear.
Further preferred, be equipped with the ball back-moving spring between wide one side of the wedge-shaped impression on the inside and outside wall of clutch base described in the present invention and the ball.
Further preferred, motor described in the present invention is the internal stator outer-rotor structure.
Wheel hub shell described in the present invention has comprised the wheel hub end housing of a side, and clutch base fixes through screw with wheel hub end housing when specifically assembling.
Operation principle of the present invention is following: because big ring gear and small internal gear drive by duplicate gear, so both rotation directions are identical, but big ring gear rotating speed is greater than the small internal gear rotating speed.
When the stuck direction of the ball of big ring gear in making clutch base outer wall wedge-shaped impression is rotated (being assumed to be clockwise direction); Big ring gear will drive clutch base and rotate together; And this moment is because the big ring gear of small internal gear rotating ratio slow (also promptly slow than clutch base rotating speed), so for clutch base, small internal gear is equivalent to towards the get loose direction of (ball has towards wide trend of walking of wedge-shaped impression) of ball in the clutch base inwall wedge-shaped impression is rotated; Therefore skid between small internal gear and the clutch base; Mutually noninterfere, small internal gear idle running, the wheel hub shell fully by big ring gear with the high speed driven rotary.
After the ball modified gear started, the ball in the clutch base outer wall wedge-shaped impression was only pushed up in wide portion, and after big ring gear rotated according to clockwise direction, ball can not interfered it like this, thereby made and skid between big ring gear and the clutch base.And this moment, small internal gear turned clockwise making that the ball in the clutch base inwall wedge-shaped impression is stuck, rotated together thereby drive clutch base, also promptly by small internal gear rotating speed was played a leading role, and the driven wheel hub shell is with low speed rotation.
Advantage of the present invention is:
This double speed wheel hub motor provided by the invention, simple in structure, easy to assembly, and need not the motor forward and backward and can realize speed change, manufacturing cost and operating cost are all lower.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further described:
Fig. 1 is structure master's cutaway view of the present invention;
Fig. 2 is the cross-sectional view of clutch part of the present invention;
Wherein: 1, main shaft; 2, hub bearing; 3, wheel hub shell; 4, stator; 5, rotor; 6, central gear; 7, gear wheel; 8, big ring gear; 9, planetary gear; 10, solenoid; 11, clutch outer; 12, clutch base; 13, sliding pin; 14, sliding pin back-moving spring; 15, small internal gear; 16, pinion; 17, planetary gear bearing; 18, planetary gear carrier; 19, flat key; 20, wedge-shaped impression; 21, ball; 22, ball back-moving spring; 23, push rod.
Embodiment
Embodiment: combine Fig. 1, shown in Figure 2; This double speed wheel hub motor provided by the invention is equipped with wheel hub shell 3 (wheel hub shell 3 has comprised the wheel hub end housing of a side) through hub bearing 2 on its main shaft 1, and said the wheel in the hub shell 3 is provided with motor; Motor adopts the internal stator outer-rotor structure; Stator 4 is fixed on the main shaft 1, and rotor 5 links to each other with constant speed driving-chain in the same way, and the constant speed driving-chain links to each other with wheel hub shell 3 through clutch in the same way.
The concrete Fig. 1, shown in Figure 2 that combines, the composition of clutch described in the present embodiment comprises clutch outer 11, clutch base 12, and by constant speed driving-chain in the same way with the separately-driven large and small ring gear 8,15 of large and small gearratio.Specifically see Fig. 2, said small internal gear 15 is positioned at clutch outer 11, and clutch base 12 is located between clutch outer 11 and the small internal gear 15, and fixing with wheel hub shell 3, and said big ring gear 8 is fixing with clutch outer 11; On the inside and outside wall of said clutch base 12 all by circumference evenly distribute dress balls 21 and the consistent wedge-shaped impressions 20 of ball 21 stuck directions in three groups; Simultaneously, be equipped with ball back-moving spring 22 between wide one side of the wedge-shaped impression 20 on the clutch base 12 inside and outside walls and the ball 21 in the present embodiment.Said clutch also comprise three with outer wall wedge-shaped impression 20 in ball 21 ball modified gear one to one, this ball modified gear comprises ball 21 tops is ended at the push rod 23 of 20 wide of wedge-shaped impressions and driven the electrical actuators of push rod 23 actions.
Still combine Fig. 1, shown in Figure 2; Be equipped with pin-and-hole in the next door of each wedge-shaped impression 20 on said clutch base 12 outer walls; Said electrical actuators is an electromagnetic actuator, and it comprises the sliding pin 13 be located in the pin-and-hole, is used to drive the solenoid 10 of sliding pin 13 telescopic movable in pin-and-hole and is used for the sliding pin back-moving spring 14 that sliding pin 13 resets; Said sliding pin 13 is provided with the recess on the band inclined-plane that cooperates with push rod 23, and when said sliding pin 13 was in first service position, push rod 23 can fall within the recess by elastic force; When sliding pin 13 is driven by solenoid 10 and movable during to second service position, push rod 23 ejects by the inclined-plane on sliding pin 13 recesses.
Concrete combine shown in Figure 1, described in the present embodiment in the same way the constant speed driving-chain by with the fixing central gear 6 of rotor 5, be fixed on the planetary gear carrier 18 on the main shaft 1 and be installed on the planetary gear carrier 18 and constitute with 9 of three planetary gears of central gear 6 engagements through planetary gear bearing 17.Said three planetary gears 9 are uniformly distributed in around the central gear 6.Each planetary gear 9 is duplicate gear described in the present embodiment; Gear wheel 7 in the said duplicate gear meshes with central gear 6 and big ring gear 8 simultaneously; Pinion 16 in the duplicate gear then meshes with small internal gear 15, and the gearratio of gear wheel 7 and big ring gear 8 is greater than the gearratio of pinion 16 with small internal gear 15.Because large and small gear 7,16 rotating speeds in the duplicate gear are identical, so the rotating speed of big ring gear 8 is greater than the rotating speed of small internal gear 15.
Planetary carrier described in the present embodiment 18 is a plectane; Said plectane is fixing with main shaft 1 through flat key 19; And said plectane is provided with three planetary gear pilot holes, and said each planetary gear 9 all is mounted on the corresponding planetary gear pilot hole through planetary gear bearing 17.And the solenoid 10 in the present embodiment in each ball modified gear all is fixed on the planetary carrier 18.
Central gear described in the present embodiment 6 is highstrenghtpiston's gear, can effectively reduce running noise of the present invention.
Operation principle of the present invention is following: because big ring gear 8 drives by duplicate gear with small internal gear 15, so both rotation directions are identical, but big ring gear 8 rotating speeds are greater than small internal gear 15 rotating speeds.
In conjunction with shown in Figure 2; When the 21 stuck directions of the ball in the wedge-shaped impression 20 of big ring gear 8 on making clutch base 12 outer walls are rotated (being clockwise direction in the present embodiment); Big ring gear 8 will drive clutch base 12 and rotate together; And this moment is because the big ring gears 8 of small internal gear 15 rotating ratios slow (also promptly slow than clutch base 12 rotating speeds), so for clutch base 12, small internal gear 15 is equivalent to towards the get loose direction of (ball has towards wide trend of walking of wedge-shaped impression) of wedge-shaped impression 20 interior balls 21 on clutch base 12 inwalls is rotated; Therefore skid between small internal gear 15 and the clutch base 12; Mutually noninterfere, small internal gear 15 idle running, wheel hub shell 3 fully by big ring gear 8 with the high speed driven rotary.
After the ball modified gear starts; Ball 21 in the wedge-shaped impression 20 on clutch base 12 outer walls is ended in wide portion by the top; After big ring gear 8 rotated according to clockwise direction, ball 21 can not interfered it like this, thereby made and skid between big ring gear 8 and the clutch base 12.And this moment, small internal gear 15 turned clockwise the ball 21 in the wedge-shaped impression 20 that makes on clutch base 12 inwalls is stuck; Thereby driving clutch base 12 rotates together; Also promptly played a leading role by 15 pairs of rotating speeds of small internal gear, driven wheel hub shell 3 is with low speed rotation.
Above embodiment is merely the present invention's a kind of execution mode wherein, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to claim of the present invention.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the present invention's design, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection range of patent of the present invention should be as the criterion with accompanying claims.
Claims (9)
1. double speed wheel hub motor; Comprise main shaft (1), wheel hub shell (3) and motor; Motor comprises stator (4) and rotor (5), and said rotor (5) links to each other with constant speed driving-chain in the same way, and the constant speed driving-chain links to each other with wheel hub shell (3) through clutch in the same way; It is characterized in that said clutch comprises clutch outer (11), clutch base (12); And by constant speed driving-chain in the same way with the separately-driven large and small ring gear of large and small gearratio (8,15); Said small internal gear (15) is positioned at clutch outer (11); Clutch base (12) is located between clutch outer (11) and the small internal gear (15), and fixing with wheel hub shell (3), and said big ring gear (8) is fixing with clutch outer (11); On the inside and outside wall of said clutch base (12) all by circumference evenly distribute some in dress balls (21) and the consistent wedge-shaped impressions (20) of the stuck direction of ball (21); Also comprise ball (21) the ball modified gear one to one in some and the outer wall wedge-shaped impression (20), this ball modified gear comprises ball (21) top is ended at the push rod (23) of wide of wedge-shaped impression (20) and driven the electrical actuators of push rod (23) action.
2. double speed wheel hub motor according to claim 1; It is characterized in that being equipped with pin-and-hole in the next door of each wedge-shaped impression (20) on said clutch base (12) outer wall; Said electrical actuators is an electromagnetic actuator, and it comprises the sliding pin (13) be located in the pin-and-hole, be used to drive sliding pin (13) movable solenoid (10) and be used for the sliding pin back-moving spring (14) that sliding pin (13) resets in pin-and-hole; Said sliding pin (13) is provided with the recess on the band inclined-plane that cooperates with push rod (23), and when said sliding pin (13) was in first service position, push rod (23) can fall within the recess by elastic force; When sliding pin (13) is driven by solenoid (10) and movable during to second service position, push rod (23) ejects by the inclined-plane on sliding pin (13) recess.
3. double speed wheel hub motor according to claim 1; It is characterized in that being equipped with pin-and-hole in the next door of each wedge-shaped impression (20) on said clutch base (12) outer wall; Said electrical actuators is an electromagnetic actuator, and it comprises the solenoid (10) of being located at the sliding pin (13) in the pin-and-hole and being used to drive sliding pin (13) telescopic movable in pin-and-hole; Said sliding pin (13) is provided with the recess on the band inclined-plane that cooperates with push rod (23), and when said sliding pin (13) was in first service position, push rod (23) can fall within the recess by elastic force; When sliding pin (13) is driven by solenoid (10) and movable during to second service position, push rod (23) ejects by the inclined-plane on sliding pin (13) recess.
4. according to claim 1 or 2 or 3 described double speed wheel hub motors; It is characterized in that some planetary gears (9) that the said driving-chain of constant speed in the same way comprises the central gear (6) fixing with rotor (5), is fixed on the planetary gear carrier (18) on the main shaft (1) and is installed in that planetary gear carrier (18) is gone up and meshes with central gear (6) through planetary gear bearing (17); Said each planetary gear (9) is duplicate gear; Gear wheel in the said duplicate gear (7) meshes with central gear (6) and big ring gear (8) simultaneously; Pinion in the duplicate gear (16) then meshes with small internal gear (15), and the gearratio of gear wheel (7) and big ring gear (8) is less than the gearratio of pinion (16) with small internal gear (15).
5. double speed wheel hub motor according to claim 4; It is characterized in that said planetary carrier (18) is tabular support; Said plectane is fixing through flat key (19) and main shaft (1); And said tabular support is provided with the planetary gear pilot hole, and said planetary gear (9) is mounted on the planetary gear pilot hole through planetary gear bearing (17).
6. double speed wheel hub motor according to claim 4, the quantity that it is characterized in that said planetary gear (9) is three, and is uniformly distributed in central gear (6) all around.
7. electric motor car double-speed motor according to claim 4 is characterized in that, said central gear (6), planetary gear or ring gear are highstrenghtpiston's gear.
8. according to claim 1 or 2 or 3 described double speed wheel hub motors, it is characterized in that being equipped with ball back-moving spring (22) between wide one side and the ball (21) of the wedge-shaped impression (20) on the inside and outside wall of said clutch base (12).
9. according to claim 1 or 2 or 3 described double speed wheel hub motors, it is characterized in that said motor is the internal stator outer-rotor structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102026261A CN102761199A (en) | 2012-06-19 | 2012-06-19 | Double-speed wheel hub motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102026261A CN102761199A (en) | 2012-06-19 | 2012-06-19 | Double-speed wheel hub motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102761199A true CN102761199A (en) | 2012-10-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102026261A Pending CN102761199A (en) | 2012-06-19 | 2012-06-19 | Double-speed wheel hub motor |
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| Country | Link |
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| CN (1) | CN102761199A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109987193A (en) * | 2017-12-29 | 2019-07-09 | 宁波麦思动力***有限公司 | Transmission device, driving device and the electric vehicle with driving device |
| CN109995185A (en) * | 2017-12-29 | 2019-07-09 | 宁波麦思动力***有限公司 | Electric machine and electric vehicle with electric machine |
| CN112616736A (en) * | 2021-01-19 | 2021-04-09 | 上海海洋大学 | Mussel separation belt cleaning device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB190213872A (en) * | 1902-06-18 | 1902-08-28 | Remy Gilloteaux | Multiple Speed Gear for a Bicycle or other Velocipede or Vehicle. |
| CN200997546Y (en) * | 2007-01-12 | 2007-12-26 | 苏州扬名机电有限公司 | Hub motor of double-speed electric automobile with positive and reversing rotation speed variation |
| JP2009019718A (en) * | 2007-07-12 | 2009-01-29 | Aisin Ai Co Ltd | Gear transmission |
| CN201557008U (en) * | 2009-12-03 | 2010-08-18 | 翁林华 | Electric bicycle hub motor |
| CN202696364U (en) * | 2012-06-19 | 2013-01-23 | 苏州雄大电机有限公司 | Double speed hub motor |
-
2012
- 2012-06-19 CN CN2012102026261A patent/CN102761199A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB190213872A (en) * | 1902-06-18 | 1902-08-28 | Remy Gilloteaux | Multiple Speed Gear for a Bicycle or other Velocipede or Vehicle. |
| CN200997546Y (en) * | 2007-01-12 | 2007-12-26 | 苏州扬名机电有限公司 | Hub motor of double-speed electric automobile with positive and reversing rotation speed variation |
| JP2009019718A (en) * | 2007-07-12 | 2009-01-29 | Aisin Ai Co Ltd | Gear transmission |
| CN201557008U (en) * | 2009-12-03 | 2010-08-18 | 翁林华 | Electric bicycle hub motor |
| CN202696364U (en) * | 2012-06-19 | 2013-01-23 | 苏州雄大电机有限公司 | Double speed hub motor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109987193A (en) * | 2017-12-29 | 2019-07-09 | 宁波麦思动力***有限公司 | Transmission device, driving device and the electric vehicle with driving device |
| CN109995185A (en) * | 2017-12-29 | 2019-07-09 | 宁波麦思动力***有限公司 | Electric machine and electric vehicle with electric machine |
| CN112616736A (en) * | 2021-01-19 | 2021-04-09 | 上海海洋大学 | Mussel separation belt cleaning device |
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Application publication date: 20121031 |