CN213360973U - Middle-mounted motor with speed change function - Google Patents
Middle-mounted motor with speed change function Download PDFInfo
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- CN213360973U CN213360973U CN202022079844.3U CN202022079844U CN213360973U CN 213360973 U CN213360973 U CN 213360973U CN 202022079844 U CN202022079844 U CN 202022079844U CN 213360973 U CN213360973 U CN 213360973U
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- motor
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- output shaft
- clutch
- rotation speed
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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 utility model provides an in put motor with variable speed function relates to mechanical technical field, and its essential element includes: a motor having a motor output shaft; the clutch control unit comprises a bidirectional controllable one-way clutch and a clutch state controller; the output rotation speed control unit includes: be connected with motor output shaft and along with its synchronous revolution sun gear, cover locate on the planet carrier and include a plurality of evenly distributed in sun gear circumference's planetary gear set, the ring gear that is connected with two-way controllable individual clutch, and be connected to the epaxial centrifugal clutch of motor output through connection structure, the utility model discloses the control range who has the rotational speed is bigger, is applicable to more types of electric motor cars, can exert better performance at low-speed and high-speed state electric motor car motor homoenergetic, simple structure, compactness, drive mechanism operational environment is good, and the noise is little, lubricated advantage such as effectual.
Description
Technical Field
The utility model belongs to the technical field of machinery, concretely relates to put motor in with variable speed function.
Background
The motor is an important part of the electric vehicle, and at present, in the field of electric vehicle driving, two main driving modes, namely a hub type motor and a central motor, are mainly adopted, wherein the central motor is widely applied to the high-performance electric vehicle.
The existing middle-placed motor adopts a fixed speed reducer to drive a vehicle to advance, so that although the structure is simple and the cost is low, the selection of a fixed transmission ratio needs to take account of both starting and climbing performances and the highest vehicle speed, so that the torque of the vehicle is insufficient when the vehicle starts or climbs, the current is very large, and the power supply and an electric control system are greatly stressed. Meanwhile, the maximum speed is low, and the characteristics of low speed and large torque of the electric vehicle cannot be fully exerted due to the limitation of factors such as the maximum rotating speed and small high-speed torque of the motor at high speed. Therefore, the automatic gear shifting middle-mounted motor which can give consideration to both large starting and climbing torque and small current and has high vehicle speed is a necessity in the market.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
Based on the problem, the utility model provides a put motor in with variable speed function to because the restriction of factors such as the motor maximum speed and high-speed moment of torsion are little when the motor is high speed among the alleviating prior art, can lead to the highest speed of a motor vehicle lower, the characteristic of the big moment of torsion of electric motor car low-speed can not the full play scheduling technical problem.
(II) technical scheme
The utility model provides a
The middle motor with the speed change function is characterized by comprising:
a motor having a motor output shaft;
the clutch control unit is sleeved on the output shaft of the motor; comprises a bidirectional controllable one-way clutch and a clutch state controller; the clutch state controller is used for controlling the bidirectional controllable one-way clutch to commutate;
the output rotation speed control unit includes:
a sun gear connected to the output shaft of the motor and rotating synchronously therewith;
the planetary gear set is sleeved on the planet carrier and comprises a plurality of planetary gears which are uniformly distributed on the circumference of the sun gear, and one end of the planet carrier is provided with a planet carrier output shaft connected to an output wheel along the direction of the motor output shaft;
the gear ring is connected with the bidirectional controllable one-way clutch, sleeved outside the planetary gear set and provided with inner teeth and a friction surface on the inner surface, so that the planetary gear set can be simultaneously meshed with the outer teeth of the sun gear and the inner teeth of the gear ring;
the centrifugal clutch is connected to the motor output shaft through a connecting structure, and can generate the change of centrifugal displacement according to the change of the rotating speed of the motor output shaft, so that the centrifugal clutch is switched between two states of being disengaged from the friction surface of the gear ring and being combined with the friction surface of the gear ring, and different rotating speeds of the output wheel are realized.
In the disclosed embodiment, when the rotation speed of the output shaft of the motor is lower than the set rotation speed, the centrifugal clutch is separated from the friction surface of the inner surface of the gear ring, and a first output wheel rotation speed is realized through the planetary gear set, and the first output wheel rotation speed is lower than the rotation speed of the output shaft of the motor.
In the embodiment of the present disclosure, when the rotation speed of the output shaft of the motor is higher than the set rotation speed, the centrifugal displacement of the centrifugal clutch is increased to be combined with the friction surface of the inner surface of the gear ring, so as to realize the rotation speed of the second output wheel, and the rotation speed of the second output wheel is higher than that of the first output wheel.
In an embodiment of the present disclosure, the connection structure of the centrifugal clutch and the output shaft of the motor includes an elastic member.
In the disclosed embodiment, the second output wheel speed is the same as the motor speed.
In the disclosed embodiment, when the rotation speed of the motor output shaft is lower than a set rotation speed, the centrifugal clutch and the gear ring are kept in a separated state.
In the disclosed embodiment, when the rotating speed of the output shaft of the motor is higher than the set rotating speed, the inner surface of the gear ring of the centrifugal clutch is kept in friction connection.
In an embodiment of the present disclosure, the planetary gear set includes a minimum of three planetary gears.
In an embodiment of the disclosure, the centrifugal clutch is arranged between the bidirectional controllable one-way clutch and the planetary gear set.
In the embodiment of the present disclosure, the planet carrier and the planet carrier output shaft are an integrated structure.
(III) advantageous effects
According to the above technical solution, the utility model relates to a put motor in with variable speed function has one of them or one of them part of following beneficial effect at least:
(1) the adjusting range of the rotating speed is larger, and the electric vehicle is suitable for more types of electric vehicles;
(2) under the low-speed and high-speed states, the motor of the electric vehicle can play a better role;
(3) simple and compact structure, good working environment of the transmission mechanism, low noise and good lubricating effect.
Drawings
Fig. 1 is a schematic structural view of the mid-motor with speed change function of the present invention.
[ description of the main reference numerals in the drawings ] for the embodiments of the present invention
1 electric motor
2 bidirectional controllable one-way clutch
3 Clutch state controller
4 sun gear
5 centrifugal clutch
6 gear ring
7 planetary gear
8 planet carrier output shaft
9 output wheel
Detailed Description
The utility model provides an in put motor with variable speed function changes the rotational speed that comes to motor output through centrifugal clutch's centrifugal displacement and adjusts to realize putting motor automatic speed change function in the electric motor car. The rotation speed adjusting range of the middle motor is wide, the reliability is high, the middle motor is suitable for various electric vehicles, the torque performance in low speed can be improved, and the maximum speed can be improved.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings.
The middle motor with the speed change function is characterized by comprising:
a motor 1 having a motor output shaft;
the clutch control unit is sleeved on the output shaft of the motor; comprises a bidirectional controllable one-way clutch 2 and a clutch state controller 3; the clutch state controller 3 is used for controlling the bidirectional controllable one-way clutch 2 to commutate;
the output rotation speed control unit includes:
a sun gear 4 connected to an output shaft of the motor 1 and rotating synchronously therewith;
the planetary gear set is sleeved on the planet carrier and comprises a plurality of planetary gears 7 which are uniformly distributed on the circumference of the sun gear 4, and one end of the planet carrier is provided with a planet carrier output shaft 8 connected to an output wheel 9 along the direction of the output shaft of the motor;
the gear ring 6 is connected with the bidirectional controllable one-way clutch 2, sleeved outside the planetary gear set and provided with inner teeth and a friction surface on the inner surface, so that the planetary gear set can be simultaneously meshed with the outer teeth of the sun gear 4 and the inner teeth of the gear ring 6;
the centrifugal clutch 5 is connected to the motor output shaft through a connecting structure, and can generate the change of centrifugal displacement according to the change of the rotating speed of the motor output shaft, so that the centrifugal clutch 5 is switched between two states of being disengaged from the gear ring friction surface and being combined with the gear ring friction surface, and different rotating speeds of the output wheel are realized.
The planetary gear mechanism installed at the output shaft end of the motor is a decisive part for speed reduction transmission of the two-gear automatic transmission at high and low speeds. The utility model discloses an in the embodiment, under being less than the settlement rotational speed state, motor 1 rotational speed is less than when setting for the rotational speed promptly, motor 1 output shaft drives centrifugal clutch 5 and 4 anticlockwise rotations of sun gear, ring gear 6 is controlled by two-way controllable individual clutch 2 and can not rotate clockwise, under the effect that planetary gear set slows down, lead to a plurality of planetary gear 7 to drive planet carrier output shaft 8 and carry out anticlockwise rotation and drive output wheel 9 with the rotational speed of first output wheel to outer output power with the rotational speed that is less than sun gear, reach the mesh that slows down and increase the torsion. The reverse rotation can be achieved by controlling the clutch state controller 3 in the same way.
The utility model discloses in another embodiment, under being higher than the settlement rotational speed state, motor 1 rotational speed is higher than when settlement rotational speed promptly, centrifugal clutch 5 and the 4 anticlockwise rotations of sun gear with motor 1 output shaft, centrifugal clutch 5 outwards throws away under the centrifugal force effect, internal surface in close contact with of outer dish ring gear 6, make centrifugal clutch 5 and ring gear 6 be in the engaged state, thereby the ring gear reaches and is synchronous with the sun gear rotational speed, lead to planetary gear set and sun gear 4, the synchronous operation of ring gear 6 relative standstill drives planet carrier output shaft 8 rotatory, and then drive output wheel 9 with second output wheel rotational speed external output power. In the high speed state, the rotation speed of the second output wheel is equal to the rotation speed of the motor. And because the speed of backing a car can not be too high, so this gear motor output rotational speed is restricted, and then can not reach the high-speed state.
The utility model has the advantages that the adjusting range of the rotating speed is wider, and the utility model is suitable for more types of electric vehicles; under the low-speed and high-speed states, the motor of the electric vehicle can play a better role; the structure is simple and compact; the transmission mechanism has good working environment, low noise and good lubricating effect. The starting current is small, and the controller is not easy to burn; the speed is high when the road condition is good, the output torque is large when starting and climbing, and the climbing capability is strong; the service life of the power battery can be prolonged.
So far, the embodiments of the present invention have been described in detail with reference to the accompanying drawings. It is to be noted that, in the attached drawings or in the description, the implementation modes not shown or described are all the modes known by the ordinary skilled person in the field of technology, and are not described in detail. Further, the above definitions of the various elements and methods are not limited to the various specific structures, shapes or arrangements of parts mentioned in the examples, which may be easily modified or substituted by those of ordinary skill in the art.
From the above description, those skilled in the art should clearly recognize that the present invention relates to a mid-motor with a speed-changing function.
To sum up, the utility model provides an in put motor with variable speed function has simple structure, compactness, and drive mechanism operational environment is good, and the noise is little, and is lubricated effectual, and starting current is little, is difficult for burning out the controller, and speed is high when road conditions are good, and output torque is big when starting, climbing, and climbing ability is strong, and can prolong advantages such as power battery life-span.
It should also be noted that directional terms, such as "upper", "lower", "front", "rear", "left", "right", etc., used in the embodiments are only directions referring to the drawings, and are not intended to limit the protection scope of the present invention. Throughout the drawings, like elements are represented by like or similar reference numerals. Conventional structures or constructions will be omitted when they may obscure the understanding of the present invention.
And the shapes and sizes of the respective components in the drawings do not reflect actual sizes and proportions, but merely illustrate the contents of the embodiments of the present invention. Furthermore, in the claims, any reference signs placed between parentheses shall not be construed as limiting the claim.
Unless otherwise indicated, the numerical parameters set forth in the specification and attached claims are approximations that can vary depending upon the desired properties sought to be obtained by the present invention. In particular, all numbers expressing quantities of ingredients, reaction conditions, and so forth used in the specification and claims are to be understood as being modified in all instances by the term "about". Generally, the expression is meant to encompass variations of ± 10% in some embodiments, 5% in some embodiments, 1% in some embodiments, 0.5% in some embodiments by the specified amount.
Furthermore, the word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements.
The use of ordinal numbers such as "first," "second," "third," etc., in the specification and claims to modify a corresponding element does not by itself connote any ordinal number of the element or any ordering of one element from another or the order of manufacture, and the use of the ordinal numbers is only used to distinguish one element having a certain name from another element having a same name.
In addition, unless steps are specifically described or must occur in sequence, the order of the steps is not limited to that listed above and may be changed or rearranged as desired by the desired design. The embodiments described above may be mixed and matched with each other or with other embodiments based on design and reliability considerations, i.e., technical features in different embodiments may be freely combined to form further embodiments.
Those skilled in the art will appreciate that the modules in the device in an embodiment may be adaptively changed and disposed in one or more devices different from the embodiment. The modules or units or components of the embodiments may be combined into one module or unit or component, and furthermore they may be divided into a plurality of sub-modules or sub-units or sub-components. All of the features of the invention in this specification (including any accompanying claims, abstract and drawings), and all of the processes or elements of any method or apparatus of the invention, may be combined in any combination, except combinations where at least some of such features and/or processes or elements are mutually exclusive. Each feature of the invention in this specification (including any accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise. Also in the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware.
The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. The middle motor with the speed change function is characterized by comprising:
a motor having a motor output shaft;
the clutch control unit is sleeved on the output shaft of the motor; comprises a bidirectional controllable one-way clutch and a clutch state controller; the clutch state controller is used for controlling the bidirectional controllable one-way clutch to commutate;
the output rotation speed control unit includes:
a sun gear connected to the output shaft of the motor and rotating synchronously therewith;
the planetary gear set is sleeved on the planet carrier and comprises a plurality of planetary gears which are uniformly distributed on the circumference of the sun gear, and one end of the planet carrier is provided with a planet carrier output shaft connected to an output wheel along the direction of the motor output shaft;
the gear ring is connected with the bidirectional controllable one-way clutch, sleeved outside the planetary gear set and provided with inner teeth and a friction surface on the inner surface, so that the planetary gear set can be simultaneously meshed with the outer teeth of the sun gear and the inner teeth of the gear ring;
the centrifugal clutch is connected to the motor output shaft through a connecting structure, and can generate the change of centrifugal displacement according to the change of the rotating speed of the motor output shaft, so that the centrifugal clutch is switched between two states of being disengaged from the friction surface of the gear ring and being combined with the friction surface of the gear ring, and different rotating speeds of the output wheel are realized.
2. The mid-motor according to claim 1, wherein when the rotation speed of the motor output shaft is lower than a set rotation speed, the centrifugal clutch is disengaged from a friction surface of an inner surface of the ring gear, and a first output wheel rotation speed is achieved through the planetary gear set, the first output wheel rotation speed being lower than the rotation speed of the motor output shaft.
3. The mid-set motor according to claim 1, wherein when the motor output shaft speed is higher than the set speed, the centrifugal clutch centrifugal displacement is increased to be combined with the friction surface of the inner surface of the ring gear, and a second output wheel speed is achieved, and the second output wheel speed is greater than the first output wheel speed.
4. The mid-motor set as defined in claim 1, wherein a connection structure of the centrifugal clutch with the motor output shaft includes an elastic member.
5. The mid-machine set forth in claim 3, wherein the second output wheel speed is the same as the motor speed.
6. The mid-motor set as claimed in claim 1, wherein the centrifugal clutch is kept in a disengaged state from the ring gear when the rotation speed of the motor output shaft is lower than a set rotation speed.
7. The mid-set motor according to claim 1, wherein the centrifugal clutch maintains the friction coupling with the inner surface of the ring gear when the rotation speed of the motor output shaft is higher than a set rotation speed.
8. The mid-motor set of claim 1, wherein the planetary gear set includes a minimum of three planetary gears.
9. The mid-motor of claim 1, wherein the centrifugal clutch is disposed between the bi-directional controllable one-way clutch and the planetary gearset.
10. The mid-motor set as defined in claim 1, wherein the planet carrier and the planet carrier output shaft are of an integral structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022079844.3U CN213360973U (en) | 2020-09-21 | 2020-09-21 | Middle-mounted motor with speed change function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022079844.3U CN213360973U (en) | 2020-09-21 | 2020-09-21 | Middle-mounted motor with speed change function |
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| Publication Number | Publication Date |
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| CN213360973U true CN213360973U (en) | 2021-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022079844.3U Active CN213360973U (en) | 2020-09-21 | 2020-09-21 | Middle-mounted motor with speed change function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115987021A (en) * | 2023-03-17 | 2023-04-18 | 浙江欣立电器科技有限公司 | Heat dissipation servo motor for small robot |
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2020
- 2020-09-21 CN CN202022079844.3U patent/CN213360973U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115987021A (en) * | 2023-03-17 | 2023-04-18 | 浙江欣立电器科技有限公司 | Heat dissipation servo motor for small robot |
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