CN202696364U - Double speed hub motor - Google Patents
Double speed hub motor Download PDFInfo
- Publication number
- CN202696364U CN202696364U CN 201220288417 CN201220288417U CN202696364U CN 202696364 U CN202696364 U CN 202696364U CN 201220288417 CN201220288417 CN 201220288417 CN 201220288417 U CN201220288417 U CN 201220288417U CN 202696364 U CN202696364 U CN 202696364U
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- Prior art keywords
- gear
- clutch
- sliding pin
- wheel hub
- ball
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Abstract
The utility model discloses a double speed hub motor which comprises a main shaft, a hub outer shell and a motor. The motor comprises a stator and a rotor, wherein the rotor is connected with an identical-direction identical-speed transmission chain which is connected with the hub outer shell through a clutch. The clutch comprises a clutch outer ring, a clutch seat, a big inner gear ring, and a small inner gear ring, wherein the identical-direction identical-speed transmission chain drives the big inner gear ring and the small inner gear ring respectively according to big transmission ratio and small transmission ratio. The small inner gear ring is located inside the clutch outer ring, the clutch seat is arranged between the clutch outer ring and the small inner gear ring and is fixed with the hub outer shell, and the big inner gear ring is fixed with the clutch outer ring. The inner wall and the outer wall of the clutch seat are both uniformly provided with a plurality of in-built balls along the circumferential direction and wedge-shaped grooves where the balls are stuck in the same direction, and further provided with ball modified gears in one-to-one correspondence to the balls in the wedge-shaped grooves of the outer wall of the clutch seat. Each ball modified gear comprises a push rod jacking one ball to a wide portion of one wedge-shaped groove and an electrical execution mechanism used for driving the push rod to move. The double speed hub motor is simple in structure, and speed variation can be completed without the need of forward rotating and reverse rotating of the motor.
Description
Technical field
The utility model relates to a kind of double speed wheel hub motor.
Background technology
Present stage, wheel hub motor was because 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, appear on the market with the wheel hub motor of reduction box, this is with the technology of the wheel hub motor of reduction box comparative maturity, and its use amount constantly rises.But still there is the wide not and not strong problem of climbing capacity of high efficiency range in existing wheel hub motor with reduction box in electric speed regulation process, and gearbox structure is redundant, 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.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 pass through attached transmission mechanism, control controllable one-way clutch device disconnects transmission, produces interlocking, eliminate self-locking, realize reversing.But the shortcoming that this invention exists is complex structure, and spare and accessory parts are many, and must be realized that cost of manufacture and operating cost are all higher by positive and negative the transferring of motor.
Summary of the invention
The utility model purpose is: 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.
The technical solution of the utility model is: a kind of double speed wheel hub motor, comprise main shaft, wheel hub shell and motor, motor comprises stator and rotor, described 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 described 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, described small internal gear is positioned at clutch outer, clutch base is located between clutch outer and the small internal gear, and with the wheel hub shell fix, described large ring gear and clutch outer are fixed; On the inside and outside wall of described clutch base all by even circumferential distribute some in-built balls and the consistent wedge-shaped impression 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 and ends the ball top at the push rod of the wide section of wedge-shaped impression and drive 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 utility model, described electrical actuators is electromagnetic actuator, and it comprises the sliding pin of being located in the pin-and-hole, the solenoid that is used for the activity in pin-and-hole of driving sliding pin and the sliding pin back-moving spring that resets for sliding pin; Described sliding pin is provided with the recess with the inclined-plane that cooperates with push rod, and when described sliding pin was in the first service position, push rod can fall within the recess by elastic force; When sliding pin is driven by solenoid and movable during to the 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 adopts can be implemented to attract or repel to sliding pin by 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 utility model 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 by planetary gear bearing be installed on the planetary gear carrier and with some planetary gears of central gear engagement, described each planetary gear is duplicate gear, gear wheel in the described duplicate gear meshes with central gear and large ring gear simultaneously, pinion in the duplicate gear then meshes with small internal gear, and the gearratio of gear wheel and large 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 large ring gear is greater than the rotating speed of small internal gear.
Further preferred, planetary carrier described in the utility model is tabular support, is preferably plectane, and described plectane is fixed by flat key and main shaft, and described plectane is provided with the planetary gear pilot hole, and described planetary gear is mounted on the planetary gear pilot hole by planetary gear bearing.
Further preferred, planetary quantity described in the utility model is three, and is uniformly distributed in around the central gear.
Further preferred, central gear described in the utility model, planetary gear or ring gear are highstrenghtpiston's gear.
Further preferred, be equipped with the ball back-moving spring between wide side of the wedge-shaped impression on the inside and outside wall of clutch base described in the utility model and the ball.
Further preferred, motor described in the utility model is the internal stator outer-rotor structure.
Wheel hub shell described in the utility model has comprised the wheel hub end housing of a side, and clutch base fixes by screw with wheel hub end housing when specifically assembling.
Operation principle of the present utility model is as follows: because large ring gear and small internal gear drive by duplicate gear, so both rotation directions are identical, but large ring gear rotating speed is greater than the small internal gear rotating speed.
When large ring gear (being assumed to be clockwise direction) when making the stuck direction rotation of ball in the clutch base outer wall wedge-shaped impression, large ring gear will drive clutch base and rotate together, and this moment is because the large ring gear of small internal gear rotating ratio slow (also namely slow than clutch base rotating speed), so for clutch base, small internal gear is equivalent to towards making the get loose direction rotation of (ball have walk towards the wide section of wedge-shaped impression trend) of ball in the clutch base inwall wedge-shaped impression, therefore skid between small internal gear and the clutch base, mutually noninterfere, small internal gear idle running, wheel hub shell fully by large 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 section, and when large ring gear rotates according to clockwise direction after, ball can not interfered it like this, thereby so that skidded between ring gear and the clutch base greatly.And this moment, small internal gear turned clockwise so that the ball in the clutch base inwall wedge-shaped impression is stuck, rotated together thereby drive clutch base, also namely by small internal gear rotating speed was played a leading role, and the driven wheel hub shell is with low speed rotation.
The utility model has the advantages that:
This double speed wheel hub motor that the utility model provides, 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 drawings and Examples the utility model is further described:
Fig. 1 is structure master's cutaway view of the present utility model;
Fig. 2 is the cross-sectional view of the utility model clutch part;
Wherein: 1, main shaft; 2, hub bearing; 3, wheel hub shell; 4, stator; 5, rotor; 6, central gear; 7, gear wheel; 8, large 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: in conjunction with Fig. 1, Fig. 2 and shown in Figure 3, this double speed wheel hub motor that the utility model provides, be equipped with the wheel hub end housing that wheel hub shell 3(wheel hub shell 3 has comprised a side by hub bearing 2 on its main shaft 1), the described 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.
Specifically in conjunction with Fig. 1, shown in Figure 2, 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 of large and small gearratio, 15.Specifically see Fig. 2, described 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 described large ring gear 8 is fixing with clutch outer 11; On the inside and outside wall of described clutch base 12 all by even circumferential distribute three groups of in-built balls 21 and the consistent wedge-shaped impression 20 of ball 21 stuck directions; Simultaneously, be equipped with ball back-moving spring 22 between wide side of the wedge-shaped impression 20 on the clutch base 12 inside and outside walls and the ball 21 in the present embodiment.Described 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 and ends ball 21 tops at the push rod 23 of wedge-shaped impression 20 wide sections and drive the electrical actuators of push rod 23 actions.
Still in conjunction with Fig. 1, shown in Figure 2, be equipped with pin-and-hole in the next door of each wedge-shaped impression 20 on described clutch base 12 outer walls, described electrical actuators is electromagnetic actuator, and it comprises is located at the interior sliding pin 13 of pin-and-hole, is used for driving 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; Described sliding pin 13 is provided with the recess with the inclined-plane that cooperates with push rod 23, and when described sliding pin 13 was in the 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 the second service position, push rod 23 ejects by the inclined-plane on sliding pin 13 recesses.
Specifically in conjunction with Fig. 1, shown in Figure 3, 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 consisted of with three planetary gears 9 of central gear 6 engagements by planetary gear bearing 17.Described 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 described duplicate gear meshes with central gear 6 and large 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 large 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 large ring gear 8 is greater than the rotating speed of small internal gear 15.
Planetary carrier described in the present embodiment 18 is plectane, described plectane is fixing with main shaft 1 by flat key 19, and described plectane is provided with three planetary gear pilot holes, and described each planetary gear 9 all is mounted on the corresponding planetary gear pilot hole by 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 utility model.
Operation principle of the present utility model is as follows: because large ring gear 8 and small internal gear 15 drive by duplicate gear, so both rotation directions are identical, but large ring gear 8 rotating speeds are greater than small internal gear 15 rotating speeds.
In conjunction with shown in Figure 2, when the stuck direction rotation of the ball 21 of large ring gear 8 in the wedge-shaped impression 20 that makes on clutch base 12 outer walls (being clockwise direction in the present embodiment), large ring gear 8 will drive clutch base 12 and rotate together, and this moment is because the large ring gears 8 of small internal gear 15 rotating ratios slow (also namely slow than clutch base 12 rotating speeds), so for clutch base 12, small internal gear 15 is equivalent to the get loose direction rotation of (ball have walk towards the wide section of wedge-shaped impression trend) of balls 21 in the wedge-shaped impression 20 that makes on clutch base 12 inwalls, 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 large 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 section by the top, after large ring gear 8 rotated according to clockwise direction, ball 21 can not interfered it like this, thereby so that skidded between large ring gear 8 and the clutch base 12.And this moment, small internal gear 15 turned clockwise so that the ball 21 in the wedge-shaped impression 20 on clutch base 12 inwalls is stuck, thereby driving clutch base 12 rotates together, also namely 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 only is the utility model a kind of execution mode wherein, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model claim.Should be pointed out that for the person of ordinary skill of the art without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection range of the present utility model.Therefore, the protection range of the utility model patent should be as the criterion with 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 described 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 described 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), described 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), described large ring gear (8) is fixing with clutch outer (11); On the inside and outside wall of described clutch base (12) all by even circumferential distribute some in-built balls (21) and the consistent wedge-shaped impression (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 and ends ball (21) top at the push rod (23) of the wide section of wedge-shaped impression (20) and drive 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 described clutch base (12) outer wall, described electrical actuators is electromagnetic actuator, and it comprises is located at the interior sliding pin (13) of pin-and-hole, is used for driving the solenoid (10) of sliding pin (13) activity in pin-and-hole and is used for the sliding pin back-moving spring (14) that sliding pin (13) resets; Described sliding pin (13) is provided with the recess with the inclined-plane that cooperates with push rod (23), and when described sliding pin (13) when being in the 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 the 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 described clutch base (12) outer wall, described electrical actuators is electromagnetic actuator, and it comprises the sliding pin (13) of being located in the pin-and-hole and the solenoid (10) that is used for driving sliding pin (13) telescopic movable in pin-and-hole; Described sliding pin (13) is provided with the recess with the inclined-plane that cooperates with push rod (23), and when described sliding pin (13) when being in the 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 the second service position, push rod (23) ejects by the inclined-plane on sliding pin (13) recess.
4. according to claim 1 and 2 or 3 described double speed wheel hub motors, it is characterized in that described in the same way constant speed driving-chain comprises the central gear (6) fixing with rotor (5), be fixed on the main shaft (1) planetary gear carrier (18) and by planetary gear bearing (17) be installed in planetary gear carrier (18) upper and with some planetary gears (9) of central gear (6) engagement, described each planetary gear (9) is duplicate gear, gear wheel in the described duplicate gear (7) meshes with central gear (6) and large 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 large 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 described planetary carrier (18) is tabular support, described plectane is fixing by flat key (19) and main shaft (1), and described tabular support is provided with the planetary gear pilot hole, and described planetary gear (9) is mounted on the planetary gear pilot hole by planetary gear bearing (17).
6. double speed wheel hub motor according to claim 4, the quantity that it is characterized in that described 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, described central gear (6), planetary gear or ring gear are highstrenghtpiston's gear.
8. according to claim 1 and 2 or 3 described double speed wheel hub motors, it is characterized in that being equipped with ball back-moving spring (22) between wide side of the wedge-shaped impression (20) on the inside and outside wall of described clutch base (12) and the ball (21).
9. according to claim 1 and 2 or 3 described double speed wheel hub motors, it is characterized in that described motor is the internal stator outer-rotor structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220288417 CN202696364U (en) | 2012-06-19 | 2012-06-19 | Double speed hub motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220288417 CN202696364U (en) | 2012-06-19 | 2012-06-19 | Double speed hub motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202696364U true CN202696364U (en) | 2013-01-23 |
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ID=47551921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220288417 Expired - Fee Related CN202696364U (en) | 2012-06-19 | 2012-06-19 | Double speed hub motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202696364U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102761199A (en) * | 2012-06-19 | 2012-10-31 | 苏州雄大电机有限公司 | Double-speed wheel hub motor |
| CN103944310A (en) * | 2014-05-12 | 2014-07-23 | 厦门力浩机械科技有限公司 | Double-speed motor |
-
2012
- 2012-06-19 CN CN 201220288417 patent/CN202696364U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102761199A (en) * | 2012-06-19 | 2012-10-31 | 苏州雄大电机有限公司 | Double-speed wheel hub motor |
| CN103944310A (en) * | 2014-05-12 | 2014-07-23 | 厦门力浩机械科技有限公司 | Double-speed motor |
| CN103944310B (en) * | 2014-05-12 | 2016-06-01 | 福建佳友茶叶机械智能科技股份有限公司 | A kind of double-speed motor |
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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 |
Granted publication date: 20130123 Termination date: 20140619 |
|
| EXPY | Termination of patent right or utility model |