CN215475593U - Automatic speed-changing hub motor - Google Patents
Automatic speed-changing hub motor Download PDFInfo
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- CN215475593U CN215475593U CN202122377232.7U CN202122377232U CN215475593U CN 215475593 U CN215475593 U CN 215475593U CN 202122377232 U CN202122377232 U CN 202122377232U CN 215475593 U CN215475593 U CN 215475593U
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Abstract
The utility model relates to an automatic speed-changing hub motor, comprising: the automatic transmission mechanism comprises a planetary transmission and an automatic centrifugal gear shifting assembly, the planetary transmission comprises a center wheel, a planet carrier, a gear ring and a planet wheel, the center wheel is fixedly connected with the main shaft or integrally formed, the gear ring is in linkage connection with the output part of the core assembly, the planet carrier is connected with the hub through a first overrunning clutch, the automatic centrifugal gear shifting assembly is arranged between the gear ring and the hub, the power input part is connected with the planet carrier or the gear ring through a second overrunning clutch, the main shaft is fixedly connected with the frame, so that the motor can be output at a low speed when being started, the output torque is large, the motor is easy to start, the power consumption is small, and the power of the motor can be reduced, and the endurance time of the motor is increased.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to the field of motors, in particular to an automatic speed-changing hub motor.
[ background of the utility model ]
Please refer to chinese patent application No. 202110423587.7, which discloses an integrated hub motor with a speed-changing mechanism, comprising: the spindle is provided with a hub and an end cover which are connected with each other, the spindle is respectively provided with a core assembly connected with the hub and a speed change mechanism connected with the end cover, the speed change mechanism comprises a centrifugal driving assembly, the centrifugal driving assembly is connected with the end cover, and state switching is realized according to the rotating speed of the end cover.
In above-mentioned patent application, because the core assembly is direct to be connected with wheel hub, therefore during electronic helping hand, through pedal power drive wheel hub and end cover rotation back, core assembly input rotational speed, directly drive wheel hub and rotate, and the helping hand vehicle gos forward, and the defect of this kind of structure is: because the core assembly is directly connected with the wheel hub, the motor is relatively labored when being started, low-speed output can not be realized when the motor is started, and the motor consumes large power, so that the endurance time of the motor is short.
Therefore, there is a need for an automatic transmission in-wheel motor that solves the above problems.
[ Utility model ] content
In order to solve the above problems, an object of the present invention is to provide an automatic transmission in-wheel motor capable of realizing low-speed output when the motor is started.
In order to achieve the purpose, the utility model adopts the technical scheme that: an automatic transmission in-wheel motor comprising: main shaft, wheel hub, power input spare and set up core assembly and automatic speed changing mechanism in wheel hub, core assembly is equipped with core assembly output, automatic speed changing mechanism includes planetary transmission and automatic centrifugal gearshift subassembly, planetary transmission includes centre wheel, planet carrier, ring gear and planet wheel, centre wheel and main shaft fixed connection or integrated into one piece, the ring gear is connected with core assembly output linkage, be connected through first freewheel clutch between planet carrier and the wheel hub, automatic centrifugal gearshift subassembly sets up between ring gear and wheel hub, power input spare passes through second freewheel clutch with planet carrier or ring gear and is connected, main shaft and frame fixed connection.
Preferably, an automatic transmission in-wheel motor in the present invention is further configured to: the core assembly includes motor and planet speed reduction subassembly, the planet speed reduction subassembly includes speed reduction centre wheel, speed reduction planet carrier, speed reduction planet wheel and speed reduction ring gear, speed reduction ring gear is core assembly output, the rotor fixed connection of speed reduction centre wheel and motor, be connected through third freewheel clutch between speed reduction planet carrier and the main shaft, speed reduction ring gear and planetary transmission's ring gear fixed connection, perhaps speed reduction planet carrier and main shaft fixed connection, speed reduction ring gear passes through the fourth freewheel clutch with planetary transmission's ring gear and is connected.
Preferably, an automatic transmission in-wheel motor in the present invention is further configured to: the core assembly includes motor and planet speed reduction subassembly, the planet speed reduction subassembly includes speed reduction centre wheel, speed reduction planet carrier, speed reduction planet wheel and speed reduction ring gear, the speed reduction planet carrier is core assembly output, the rotor fixed connection of speed reduction centre wheel and motor, speed reduction ring gear passes through fifth freewheel clutch with the main shaft and is connected, speed reduction planet carrier and planetary transmission's ring gear fixed connection, perhaps speed reduction ring gear and main shaft fixed connection, speed reduction planet carrier passes through sixth freewheel clutch with planetary transmission's ring gear and is connected.
Preferably, an automatic transmission in-wheel motor in the present invention is further configured to: the core assembly comprises a motor, a rotor of the motor is an output part of the core assembly, and the rotor of the motor is fixedly connected with a gear ring of the planetary transmission or connected with the gear ring through a seventh overrunning clutch.
Preferably, an automatic transmission in-wheel motor in the present invention is further configured to: the power input part is a driving wheel.
Preferably, an automatic transmission in-wheel motor in the present invention is further configured to: the automatic centrifugal shift assembly includes: the planetary gear train comprises a pawl rack, a ratchet wheel, at least one pawl, at least two centrifugal linkage members, at least one balance member, a first elastic member for controlling the initial position of the centrifugal linkage members and a second elastic member for controlling the initial position of the pawl, wherein the pawl rack is integrally formed with or fixedly connected with a hub, the ratchet wheel is arranged on the outer circumferential surface of a gear ring of the planetary gear train, a pawl part matched with the ratchet wheel is arranged on the pawl, the centrifugal linkage members are arranged on the pawl rack through a first pin and can swing relative to the pawl rack, the pawl is arranged on the pawl rack through a second pin and can swing relative to the pawl rack, and the centrifugal linkage members comprise: the balance part is connected between two adjacent centrifugal linkage parts, when the balance part of the centrifugal linkage parts moves towards the direction of a circle center, the pawl part of the pawl part moves towards the direction far away from the ratchet wheel and is disengaged from the ratchet wheel, when the balance part of the centrifugal linkage parts moves towards the direction far away from the circle center, the pawl part of the pawl part moves towards the direction of the ratchet wheel and is engaged with the ratchet wheel, and the pawl part and the ratchet wheel swing relatively under the action of the second elastic part in the following process.
Preferably, an automatic transmission in-wheel motor in the present invention is further configured to: the first elastic piece and the second elastic piece are both torsional springs, the first elastic piece is installed on the pawl rack through a third pin, and the second elastic piece is installed on a second pin.
Preferably, an automatic transmission in-wheel motor in the present invention is further configured to: the first pin and the second pin are the same pin.
Compared with the prior art, the utility model has the following beneficial effects: the automatic speed change hub motor is in linkage connection with the gear ring of the planetary transmission through the output piece of the core assembly, so that the motor can be output in a speed reduction mode through transmission of the planetary transmission when being started, the output torque is increased, the motor is easy to start, the power consumption is low, the endurance time of the motor is prolonged, and a motor with smaller power can be selected.
[ description of the drawings ]
Fig. 1 is a front view of the automatic transmission hub motor of the present invention.
Fig. 2 is a schematic cross-sectional structural view of the automatic transmission hub motor of the present invention.
Fig. 3 is an exploded view of the automatic transmission hub motor of the present invention.
Fig. 4 is a schematic view of the automatic centrifugal shift assembly of the present invention.
In fig. 1 to 4: 1. the main shaft, 2, a hub, 20, a first overrunning clutch, 200, an overrunning pawl carrier, 201, an overrunning pawl, 202, an overrunning ratchet, 3, a power input, 4, a movement assembly, 40, a motor, 400, a rotor, 401, a stator, 41, a planetary reduction assembly, 410, a reduction center wheel, 411, a reduction planet carrier, 412, a reduction planet wheel, 413, a reduction ring gear, 5, an automatic speed change mechanism, 50, a planetary transmission, 500, a center wheel, 501, a planet carrier, 502, a ring gear, 503, a planet wheel, 51, an automatic centrifugal gear shift assembly, 510, a pawl carrier, 511, a ratchet, 512, a pawl, 5120, a pawl portion, 513, a centrifugal linkage, 5130, a counterweight portion, 5131, a limiting portion, 514, a balance member, 515, a first elastic member, 5150, a third pin, 516, a second elastic member, 517 and a first pin.
[ detailed description ] embodiments
An automatic transmission in-wheel motor according to the present invention will be described in further detail with reference to the following embodiments.
Example 1
Referring to fig. 1 to 4, an automatic transmission in-wheel motor includes: the automatic transmission comprises a main shaft 1, a hub 2, a power input piece 3, a movement assembly 4 arranged in the hub 2 and an automatic speed change mechanism 5.
The core assembly 4 includes motor 40 and planet speed reduction subassembly 41, the stator 401 and the main shaft 1 fixed connection of motor 40, the rotor 400 cover of motor 40 is located on the main shaft 1 and can rotate relatively with the main shaft 1, planet speed reduction subassembly 41 includes speed reduction centre wheel 410, speed reduction planet carrier 411, speed reduction planet wheel 412 and speed reduction ring gear 413, speed reduction ring gear 413 is the core assembly output, speed reduction centre wheel 410 and motor 40's rotor fixed connection.
The automatic transmission mechanism 5 includes a planetary transmission 50 and an automatic centrifugal shift assembly 51, the planetary transmission 50 includes a sun gear 500, a planet carrier 501, a ring gear 502 and a planet gear 503, the central wheel 500 is fixedly connected with the main shaft 1 or integrally formed, the planet carrier 501 is connected with the hub 2 through the first overrunning clutch 20, the first overrunning clutch 20 comprises an overrunning pawl frame 200, an overrunning pawl 201 and an overrunning ratchet 202, the overrunning pawl 201 is mounted on the overrunning pawl frame 200 through an elastic component, the overrunning pawl frame 200 is integrally formed or fixedly connected with the planet carrier 501, the overrunning ratchet 202 is integrally formed or fixedly connected with the hub 2, in the present embodiment, the power input member 3 and the carrier 501 are connected by a second overrunning clutch (not shown), of course, in other embodiments, the power input 3 can also be connected to the ring gear 502 via a second overrunning clutch. The main shaft 1 is fixedly connected with the frame, the automatic centrifugal gear shifting assembly 51 is arranged between the gear ring 502 and the hub 2, and the automatic centrifugal gear shifting assembly 51 comprises: the planetary gear train comprises a pawl frame 510, a ratchet wheel 511, at least one pawl 512, at least two centrifugal linkages 513, at least one balancing member 514, a first elastic member 515 for controlling the initial position of the centrifugal linkage 513 and a second elastic member 516 for controlling the initial position of the pawl 512, wherein the pawl frame 510 is integrally formed with or fixedly connected with a wheel hub 2, the ratchet wheel 511 is arranged on the outer circumferential surface of a gear ring 502 of the planetary transmission 50, the pawl 512 is provided with a pawl portion 5120 matched with the ratchet wheel 511, the centrifugal linkage 513 is mounted on the pawl frame 510 through a first pin 517 and can swing relative to the pawl frame 510, the pawl 512 is also mounted on the pawl frame 510 through the first pin 517 and can swing relative to the pawl frame 510, and the centrifugal linkage 513 comprises: the weight portion 5130 and the limiting portion 5131, the limiting portion 5131 limits the pawl 512 so that the pawl portion 5120 of the pawl 512 is far away from the ratchet 511 and the pawl portion 5120 and the ratchet 511 are in a disengaged state at the initial position of the centrifugal link 513, the balancing member 514 is connected between two adjacent centrifugal links 513, when the weight portion 5130 of the centrifugal link 513 moves towards the direction of the center of a circle, the limiting portion 5131 acts on the pawl 512 to move the pawl portion 5120 of the pawl 512 away from the ratchet 511 and disengage from the ratchet 511, when the weight portion 5130 of the centrifugal link 513 moves away from the center of a circle, the limiting portion 5131 releases the pawl 512, the pawl 512 moves towards the ratchet 511 and engages with the ratchet 511 under the action of the second elastic member 516, the pawl 512 and the ratchet 511 relatively swing under the action of the second elastic member 516 in the following process, the centrifugal force on the centrifugal link 513 is kept from acting on the pawl 512, greatly reducing the noise and resistance of the pawl 512 following the ratchet 511. In this embodiment, the number of the pawls 512 and the centrifugal link 513 is two, the number of the balancer 514 is one, the number of the balancer 514 is a balance rod, the number of the first elastic member 515 and the number of the second elastic member 516 are both torsion springs, the first elastic member 515 is mounted on the pawl frame 510 through the third pin 5150, and the second elastic member 516 is mounted on the first pin 517, in this embodiment, the pawls 512 and the centrifugal link 513 are mounted on the pawl frame 510 through the same pin (i.e., the first pin 517), but in other embodiments, the pawls 512 may be mounted on the pawl frame 510 through one pin, and the centrifugal link 513 may be mounted on the pawl frame 510 through another pin.
In the present embodiment, the reduction carrier 411 and the main shaft 1 are connected by a third overrunning clutch (not shown), and the reduction ring gear 413 and the ring gear 502 of the planetary transmission 50 are fixedly connected, but in another embodiment, the reduction carrier 411 and the main shaft 1 are fixedly connected, and the reduction ring gear 413 and the ring gear 502 of the planetary transmission 50 are connected by a fourth overrunning clutch, and the present invention can be similarly realized.
The working principle of the automatic speed-changing hub motor in the embodiment is as follows: during the low-speed gear, the manpower is trampled and is driven 3 rotations of power input, and power input 3 drives planet carrier 501 through second freewheel clutch and rotates, and planet carrier 501 drives wheel hub 2 through first freewheel clutch 20 and rotates, output power, ring gear 502 idle running follow-up this moment. The motor 40 starts to work when being trampled by manpower, the rotor 400 of the motor 40 drives the speed reduction central wheel 410 to rotate, the speed reduction central wheel 410 drives the speed reduction gear ring 413 to rotate through the transmission of the speed reduction planet wheel 412, the speed reduction gear ring 413 drives the gear ring 502 of the planetary transmission 50 to rotate, the gear ring 502 of the planetary transmission 50 drives the planet carrier 501 to rotate through the transmission of the planet wheel 503, the planet carrier 501 drives the hub 2 to rotate through the first overrunning clutch 20, power is output, so that the motor assisting force is realized, the process is that the core assembly 4 outputs power through the speed reduction of the planetary transmission 50, and the output torque is increased. In a high-speed gear, the power input part 3 is driven to rotate by manual treading, the power input part 3 drives the planet carrier 501 to rotate through the second overrunning clutch, the planet carrier 501 drives the hub 2 to rotate through the first overrunning clutch 20, when the rotation speed of the hub 2 reaches a certain value, the weight portion 5130 of the centrifugal link 513 moves away from the center of the circle under the action of the centrifugal force, and at this time, the pawl portion 5120 of the pawl 512 is engaged with the ratchet 511 under the action of the second elastic member 516, because the ratchet 511 is arranged on the gear ring 502, the pawl 512 is arranged on the pawl frame 510, the pawl frame 510 is arranged on the hub 2, the planet carrier 501 drives the gear ring 502 to rotate through the transmission of the planet gear 503, the gear ring 502 drives the pawl 512 and the pawl frame 510 to rotate, the pawl frame 510 rotates to drive the hub 2 to rotate, and at the moment, the first overrunning clutch 20 runs in an overrunning mode. The manual pedaling accelerates the output power through the transmission of the planetary transmission 50. The motor 40 starts to work while being stepped by manpower, the rotor 400 of the motor 40 drives the speed reduction central wheel 410 to rotate, the speed reduction central wheel 410 drives the speed reduction gear ring 413 to rotate through the meshing transmission of the speed reduction planet wheel 412, the speed reduction gear ring 413 further drives the gear ring 502 of the planetary transmission 50 to rotate, the gear ring 502 of the planetary transmission 50 drives the pawl element 512 and the pawl element rack 510 to rotate, the pawl element rack 510 rotates to drive the hub 2 to rotate, so that the motor assisting power is realized, and in the process, the movement assembly 4 drives the gear ring 502 to directly output power.
Example 2
The rest of the structure in this embodiment is the same as that in embodiment 1, except that the deck assembly 4, in embodiment 1, the reduction gear ring 413 is a movement assembly output member, the reduction carrier 411 is connected with the main shaft 1 through a third overrunning clutch, the reduction gear ring 413 is fixedly connected with the gear ring 502 of the planetary transmission 50, or the reduction planet carrier 411 is fixedly connected with the main shaft 1, the reduction ring gear 413 is connected with the ring gear 502 of the planetary transmission 50 through a fourth overrunning clutch, in the embodiment, the reduction carrier 411 is a movement assembly output member, the reduction ring gear 413 is connected with the main shaft 1 through a fifth overrunning clutch, the reduction carrier 411 is fixedly connected with the ring gear 502 of the planetary transmission 50, or the reduction ring gear 413 is fixedly connected with the main shaft 1, and the reduction carrier 411 is connected with the ring gear 502 of the planetary transmission 50 through a sixth overrunning clutch.
Example 3
The rest of the structure in this embodiment is the same as that in embodiment 1, except that the core assembly 4 is a core assembly 4, the core assembly 4 in embodiment 1 includes a motor 40 and a planetary reduction assembly 41, the planetary reduction assembly 41 includes a reduction center wheel 410, a reduction planet carrier 411, a reduction planet wheel 412 and a reduction ring gear 413, the reduction ring gear 413 is an output member of the core assembly, while the core assembly 4 in this embodiment includes only the motor 40, a rotor 400 of the motor 40 is an output member of the core assembly, and the rotor 400 of the motor 40 is fixedly connected with a ring gear 502 of a planetary transmission 50 or connected through a seventh overrunning clutch.
In summary, the automatic speed change hub motor of the utility model is in linkage connection with the gear ring of the planetary transmission through the output part of the core assembly, so that the motor can be output in a speed reduction manner through the transmission of the planetary transmission when being started, the output torque is increased, the motor is easy to start, the power consumption is low, the endurance time of the motor is increased, and a motor with smaller power can be selected.
The above-mentioned embodiments are merely illustrative of the principles and effects of the present invention, and some embodiments may be used, not restrictive; it should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the inventive concept of the present invention, and these changes and modifications belong to the protection scope of the present invention.
Claims (8)
1. An automatic transmission in-wheel motor, comprising: main shaft, wheel hub, power input spare and set up core assembly and automatic speed changing mechanism in wheel hub, core assembly is equipped with core assembly output, automatic speed changing mechanism includes planetary transmission and automatic centrifugal gearshift subassembly, planetary transmission includes centre wheel, planet carrier, ring gear and planet wheel, centre wheel and main shaft fixed connection or integrated into one piece, the ring gear is connected with core assembly output linkage, be connected through first freewheel clutch between planet carrier and the wheel hub, automatic centrifugal gearshift subassembly sets up between ring gear and wheel hub, power input spare passes through second freewheel clutch with planet carrier or ring gear and is connected, main shaft and frame fixed connection.
2. An automatic transmission in-wheel motor as claimed in claim 1, wherein: the core assembly includes motor and planet speed reduction subassembly, the planet speed reduction subassembly includes speed reduction centre wheel, speed reduction planet carrier, speed reduction planet wheel and speed reduction ring gear, speed reduction ring gear is core assembly output, the rotor fixed connection of speed reduction centre wheel and motor, be connected through third freewheel clutch between speed reduction planet carrier and the main shaft, speed reduction ring gear and planetary transmission's ring gear fixed connection, perhaps speed reduction planet carrier and main shaft fixed connection, speed reduction ring gear passes through the fourth freewheel clutch with planetary transmission's ring gear and is connected.
3. An automatic transmission in-wheel motor as claimed in claim 1, wherein: the core assembly includes motor and planet speed reduction subassembly, the planet speed reduction subassembly includes speed reduction centre wheel, speed reduction planet carrier, speed reduction planet wheel and speed reduction ring gear, the speed reduction planet carrier is core assembly output, the rotor fixed connection of speed reduction centre wheel and motor, speed reduction ring gear passes through fifth freewheel clutch with the main shaft and is connected, speed reduction planet carrier and planetary transmission's ring gear fixed connection, perhaps speed reduction ring gear and main shaft fixed connection, speed reduction planet carrier passes through sixth freewheel clutch with planetary transmission's ring gear and is connected.
4. An automatic transmission in-wheel motor as claimed in claim 1, wherein: the core assembly comprises a motor, a rotor of the motor is an output part of the core assembly, and the rotor of the motor is fixedly connected with a gear ring of the planetary transmission or connected with the gear ring through a seventh overrunning clutch.
5. An automatic transmission in-wheel motor as claimed in claim 1, wherein: the power input part is a driving wheel.
6. An automatic transmission in-wheel motor as claimed in claim 1, wherein: the automatic centrifugal shift assembly includes: the planetary gear train comprises a pawl rack, a ratchet wheel, at least one pawl, at least two centrifugal linkage members, at least one balance member, a first elastic member for controlling the initial position of the centrifugal linkage members and a second elastic member for controlling the initial position of the pawl, wherein the pawl rack is integrally formed with or fixedly connected with a hub, the ratchet wheel is arranged on the outer circumferential surface of a gear ring of the planetary gear train, a pawl part matched with the ratchet wheel is arranged on the pawl, the centrifugal linkage members are arranged on the pawl rack through a first pin and can swing relative to the pawl rack, the pawl is arranged on the pawl rack through a second pin and can swing relative to the pawl rack, and the centrifugal linkage members comprise: the balance part is connected between two adjacent centrifugal linkage parts, when the balance part of the centrifugal linkage parts moves towards the direction of a circle center, the pawl part of the pawl part moves towards the direction far away from the ratchet wheel and is disengaged from the ratchet wheel, when the balance part of the centrifugal linkage parts moves towards the direction far away from the circle center, the pawl part of the pawl part moves towards the direction of the ratchet wheel and is engaged with the ratchet wheel, and the pawl part and the ratchet wheel swing relatively under the action of the second elastic part in the following process.
7. An automatic transmission in-wheel motor as claimed in claim 6, wherein: the first elastic piece and the second elastic piece are both torsional springs, the first elastic piece is installed on the pawl rack through a third pin, and the second elastic piece is installed on a second pin.
8. An automatic transmission in-wheel motor as claimed in claim 6, wherein: the first pin and the second pin are the same pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122377232.7U CN215475593U (en) | 2021-09-29 | 2021-09-29 | Automatic speed-changing hub motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122377232.7U CN215475593U (en) | 2021-09-29 | 2021-09-29 | Automatic speed-changing hub motor |
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| CN215475593U true CN215475593U (en) | 2022-01-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113715954A (en) * | 2021-09-29 | 2021-11-30 | 张家港川梭车业有限公司 | Automatic speed-changing hub motor |
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- 2021-09-29 CN CN202122377232.7U patent/CN215475593U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113715954A (en) * | 2021-09-29 | 2021-11-30 | 张家港川梭车业有限公司 | Automatic speed-changing hub motor |
| CN113715954B (en) * | 2021-09-29 | 2024-08-23 | 张家港川梭车业有限公司 | Automatic speed-changing hub motor |
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