CN203496677U - Radial parallel type multi-motor drive device - Google Patents
Radial parallel type multi-motor drive device Download PDFInfo
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- CN203496677U CN203496677U CN201320649233.5U CN201320649233U CN203496677U CN 203496677 U CN203496677 U CN 203496677U CN 201320649233 U CN201320649233 U CN 201320649233U CN 203496677 U CN203496677 U CN 203496677U
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- end plate
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Abstract
The utility model provides a radial parallel type multi-motor drive device, and belongs to the technical field of motors. The device aims to solve the problems that when an existing multi-motor synthetic drive system breaks down, a motor cannot automatically disengage from the system, system efficiency is low, and reliability is poor. Drive motors of the device are of an inner rotor structure, an end plate is fixed in a shell, the shell is divided into a motor space and a power output space in the axial direction, an output shaft is arranged in the middle of the power output space in the axial direction of the power output space, one end of the output shaft is disposed on the end plate, the other end of the output shaft extends out of the shell, n drive motors are evenly distributed in the motor space, a rotor of each drive motor is fixed to the shell, the head end of a rotary shaft of each rotor is arranged on the shell, the tail end of the rotary shaft of each rotor penetrates through the end plate and extends to the power output space, the rear end side of each rotary shaft is fixedly provided with a one-way clutch, the one-way clutches are fixedly connected with input gears, and the input gears are meshed with output gears fixed to the output shaft. The radial parallel type multi-motor drive device serves as a motor drive device.
Description
Technical field
The utility model relates to the many motor drivers of radial parallel formula, belongs to technical field of motors.
Background technology
Conventional motors is in many speed governing occasions that need high-torque, such as pure electric automobile driving system, show unsatisfactory, while driving such as single motor, if power invariability can not meet automobile acceleration capability and maximum speed requirement simultaneously, if pursue the tractive performance of car load, must improve power of motor, so not only the volume of motor can be multiplied, and has also increased cost and complete vehicle weight; In addition, when motor breaks down, car load just cannot normally travel, and also easily causes the accident, and reliability is not high.
At present, a kind of method that solves above-mentioned technical barrier is to adopt a plurality of motor associated working, form actuating device, a plurality of motors can distribute different moment and power according to the performance of system requirements on the one hand, no matter make it at a high speed or low speed all has higher efficiency, and power demand and maximum speed demand can meet acceleration time; On the other hand, the redundancy (backup) in a plurality of motor formation systems, when motor breaks down, as long as also have a motor normally to work, just can not cause system to quit work, and has greatly improved the reliability of system.
Existing multi-electromotor compound drive system, mainly comprise n group electric-motor drive unit, power synthesis device, DC energy source, output shaft and system management control unit, every group of electric-motor drive unit is comprised of inversion unit and alternating-current motor/AC motor, inversion unit is one by one corresponding to electrical motor, form n and organize single electric-motor drive unit, n organizes single electric-motor drive unit and constitutes multi-motors drive system, power synthesis device adopts the gear structure of the single output of many inputs, synthetic n group electric-motor drive unit outputting power, then output; System management control unit is respectively organized mode of operation and the torque of electric-motor drive unit according to actual condition dynamic assignment, safety control module in system management control unit detects after electric-motor drive unit fault, to send fault alarm, system management control unit is dynamically redistributed mode of operation and the torque of respectively organizing normal motor driver element according to actual condition.
This multi-electromotor compound drive system, although can guarantee the power-performance demand of driven Full Vehicle System, improves system reliability, but it is separated that n organizes single electric-motor drive unit, and volume is larger, and motor detachment system voluntarily, when fault, cause system effectiveness not high, and have potential safety hazard.
Utility model content
The utility model object is that motor is detachment system voluntarily in order to solve existing multi-electromotor compound drive system when the fault, causes the problem of the low and poor reliability of system effectiveness, provides a kind of radial parallel formula many motor drivers.
The many motor drivers of radial parallel formula described in the utility model, it comprises housing, a n drive motor, end plate, a n free-wheel clutch, a n input gear, output gear and output shaft, n is greater than or equal to 2 natural number;
Each drive motor comprises stator, rotor and rotating shaft, and described drive motor is inner rotor core;
Housing is the cylindrical shape of hollow, end plate is fixed on enclosure interior, housing is divided into motor space and power output region vertically, output shaft is axially arranged in output region along output region between two parties, one end of output shaft is arranged on end plate, the other end extends to beyond housing, and n drive motor along the circumferential direction evenly arranged in motor space centered by the axis of output shaft;
The stator of each drive motor is fixed on housing, between stator and rotor, form air gap, the rotating shaft head end of rotor is arranged on housing, end extends to power output region through end plate, the end side of rotating shaft is fixed with free-wheel clutch, free-wheel clutch is fixedly connected with input gear, and output gear fixing on input gear and output shaft meshes.
Described output shaft is connected with housing with end plate by bearing.
The rotating shaft of each drive motor is connected with housing with end plate by bearing.
Advantage of the present utility model: n drive motor in parallel in the many motor drivers of radial parallel formula described in the utility model can singlely work alone, also can multiple electric motors associated working, free-wheel clutch makes the power of single or multiple motors pass to output shaft by output gear, and out-of-run motor can not be affected, mechanically independent.When n motor performance, size are identical, motor can be done modular design, each motor as the same module of battery, the work that is together in parallel, has saved R&D costs; When n motor performance is different, high-speed electric expreess locomotive and slowspeed machine can be combined, adjust the transmitting ratio of input gear and output gear separately, can realize that high low speed is compatible to be driven, large between power-section, efficiency is high.Thus, when the work of the many motor drivers of radial parallel formula, if certain motor et out of order wherein, detachment system, only need be stopped voluntarily, and does not affect the normal work of whole device, other motor can not pull its running yet simultaneously, has reduced system loss, has improved reliability.
The utility model is the work of a plurality of motor parallel formula, can according to power grade, select the quantity of motor, can increase or reduce the quantity of motor when power demand changes; A plurality of motors share a housing and end plate, have reduced the volume and weight of actuating device; When certain motor breaks down need to change time, only need to change single motor, reduced maintenance cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of the many motor drivers of radial parallel formula described in the utility model;
Fig. 2 is the schematic diagram of input gear and output gear engagement in Fig. 1;
Fig. 3 is that n is 4 o'clock, the schematic diagram of all input gears and output gear engagement.
The specific embodiment
The specific embodiment one: present embodiment is described below in conjunction with Fig. 1, Fig. 2 and Fig. 3, the many motor drivers of radial parallel formula described in present embodiment, it is characterized in that, it comprises housing 1, a n drive motor, end plate 3, a n free-wheel clutch 4, a n input gear 5, output gear 6 and output shaft 7, and n is greater than or equal to 2 natural number;
Each drive motor comprises stator 2-1, rotor 2-2 and rotating shaft 2-3, and described drive motor is inner rotor core;
The stator 2-1 of each drive motor is fixed on housing 1, between stator 2-1 and rotor 2-2, form air gap, the rotating shaft 2-3 head end of rotor 2-2 is arranged on housing 1, end extends to power output region 1-2 through end plate 3, the end side of rotating shaft 2-3 is fixed with free-wheel clutch 4, free-wheel clutch 4 is fixedly connected with input gear 5, and output gear 6 fixing on input gear 5 and output shaft 7 meshes.
The specific embodiment two: below in conjunction with Fig. 1, present embodiment is described, present embodiment is described further embodiment one, output shaft described in present embodiment 7 is connected with housing 1 with end plate 3 by bearing.
The specific embodiment three: below in conjunction with Fig. 1, present embodiment is described, present embodiment is described further embodiment one or two, in present embodiment, the rotating shaft 2-3 of each drive motor is connected with housing 1 with end plate 3 by bearing.
Working process of the present utility model: when loading demand power hour, can only have a drive motor job, its rotor drives output gear and output shaft to rotate by free-wheel clutch, the input gear being mated, horsepower output, other drive motor not energising is not worked, under the effect of free-wheel clutch, output shaft is automatically separated with the drive motor rotor stopping; When loading demand increased power, can start successively other machine operation, in like manner, due to the effect of free-wheel clutch, the motor of work passes torque to output shaft by output gear, and out-of-run motor is automatically separated with output shaft.When loading demand power reduction or certain motor break down, can make part motor or fault motor stop, guaranteeing that drive motor moves all the time in rated range, improve the operating efficiency of motor and the reliability of system.
When n drive motor performance, size are identical, motor can be done modular design, each motor is treated as to the same module of battery, work is together in parallel, input gear can be designed as identical, transmitting ratio is the same so, and the motor speed of running is identical, and output torque is all input torque sums; If the input gear number of teeth is different, transmitting ratio is different, and the motor speed of running is different, and output torque is all input torque sums; Also can by changing the number of teeth of input gear and output gear, recently change the revolution ratio of drive system, realize the function of speed change transmitted power.
When n motor performance is different, high-speed electric expreess locomotive and slowspeed machine can be combined, adopt different motor driven or combine driving, not only the large power of low speed can be realized but also high-speed high-power can be realized, can adapt to different rotating speeds and power demand, but the transmitting ratio of their output needs and the rotating speed of self adapts, and the rotating speed of exporting to output gear is identical, and output torque is all input torque sums.
Claims (3)
1. many motor drivers of radial parallel formula, it is characterized in that, it comprises housing (1), a n drive motor, end plate (3), a n free-wheel clutch (4), a n input gear (5), output gear (6) and output shaft (7), and n is greater than or equal to 2 natural number;
Each drive motor comprises stator (2-1), rotor (2-2) and rotating shaft (2-3), and described drive motor is inner rotor core;
Housing (1) is the cylindrical shape of hollow, end plate (3) is fixed on housing (1) inside, housing (1) is divided into motor space (1-1) and power output region (1-2) vertically, output shaft (7) is axially arranged in output region (1-2) between two parties along output region (1-2), one end of output shaft (7) is arranged on end plate (3), the other end extends to housing (1) in addition, and n drive motor along the circumferential direction evenly arranged in motor space (1-1) centered by the axis of output shaft (7);
The stator of each drive motor (2-1) is fixed on housing (1), between stator (2-1) and rotor (2-2), form air gap, rotating shaft (2-3) head end of rotor (2-2) is arranged on housing (1), end extends to power output region (1-2) through end plate (3), the end side of rotating shaft (2-3) is fixed with free-wheel clutch (4), free-wheel clutch (4) is fixedly connected with input gear (5), input gear (5) and upper fixing output gear (6) engagement of output shaft (7).
2. the many motor drivers of radial parallel formula according to claim 1, is characterized in that, described output shaft (7) is connected with housing (1) with end plate (3) by bearing.
3. the many motor drivers of radial parallel formula according to claim 1 and 2, is characterized in that, the rotating shaft of each drive motor (2-3) is connected with housing (1) with end plate (3) by bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320649233.5U CN203496677U (en) | 2013-10-21 | 2013-10-21 | Radial parallel type multi-motor drive device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320649233.5U CN203496677U (en) | 2013-10-21 | 2013-10-21 | Radial parallel type multi-motor drive device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203496677U true CN203496677U (en) | 2014-03-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320649233.5U Withdrawn - After Issue CN203496677U (en) | 2013-10-21 | 2013-10-21 | Radial parallel type multi-motor drive device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203496677U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103481774A (en) * | 2013-10-21 | 2014-01-01 | 哈尔滨工业大学 | Radial parallel type multi-motor driving device |
-
2013
- 2013-10-21 CN CN201320649233.5U patent/CN203496677U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103481774A (en) * | 2013-10-21 | 2014-01-01 | 哈尔滨工业大学 | Radial parallel type multi-motor driving device |
| CN103481774B (en) * | 2013-10-21 | 2015-12-09 | 哈尔滨工业大学 | Radial parallel formula multi-motor driving device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140326 Effective date of abandoning: 20151209 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20140326 Effective date of abandoning: 20151209 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |