CN219420393U - Stepless speed change DC brushless speed reducing motor for electric motorcycle - Google Patents
Stepless speed change DC brushless speed reducing motor for electric motorcycle Download PDFInfo
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- CN219420393U CN219420393U CN202223349561.1U CN202223349561U CN219420393U CN 219420393 U CN219420393 U CN 219420393U CN 202223349561 U CN202223349561 U CN 202223349561U CN 219420393 U CN219420393 U CN 219420393U
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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 discloses a stepless speed change direct current brushless speed reduction motor for an electric motorcycle.A gear box body is connected to the upper end of a motor main body, the gear box body is provided with a gear set, the input end of the gear set is linked with a motor shaft, the output end of the gear set is linked with an output shaft, and the output shaft extends out of the gear box body; the motor shaft and the input gear shaft are in linkage through spline butt joint, the input gear shaft is meshed with the middle big gear, the middle big gear is arranged on a first transmission shaft, the middle small gear is further arranged on the first transmission shaft, the middle small gear is meshed with a final gear, the final gear is arranged on a rotatable output shaft, the front end of the output shaft extends out of the gear box body, the rotor magnet is arranged, the rotor magnet cannot fall off, the motor rotating speed can be accurately controlled, the motor can be quickly started, the gear box is used for reducing the speed, the torque of the output shaft is increased, the climbing capacity of the whole machine is increased, the motor cost is reduced, the structure is simple, the cost is low, and the like.
Description
Technical Field
The utility model relates to a motor for an electric motorcycle, in particular to a stepless speed change direct current brushless speed reduction motor for the electric motorcycle, and belongs to the field of motors.
Background
At present, a direct current brushless motor with a clutch is generally used on an electric motorcycle, and the structure is complex and the cost is high. In the driving process, a more gear is needed to adjust the speed, which is troublesome. The hub motor is simple in structure, but insufficient in climbing power and high in cost. Therefore, the direct current brushless motor with the technical characteristics of simple structure, sufficient climbing power, low cost and the like is a necessary trend of market research and development.
Disclosure of Invention
In order to solve the problems in the prior art, the utility model provides the stepless speed change direct current brushless speed reduction motor for the electric motor car, which has the technical characteristics of preventing rotor magnets from falling off, accurately controlling the rotating speed of the motor and quickly starting, reducing the speed by using a gear box, increasing the torque of an output shaft 16, increasing the climbing capacity of the whole motor, reducing the cost of the motor, having simple structure, low cost and the like.
In order to achieve the above purpose, the present utility model is realized by the following technical scheme:
the utility model relates to a stepless speed change direct current brushless speed reduction motor for an electric motorcycle, which comprises a motor main body, wherein the upper end of the motor main body is connected with a gear box body, the front end of a motor shaft of the motor main body is arranged in the gear box body, the gear box body is provided with a gear set, the input end of the gear set is linked with the motor shaft, the output end of the gear set is linked with an output shaft, and the output shaft extends out of the gear box body;
the gear set comprises an input gear shaft, an output shaft, a middle pinion and a final gear, wherein the motor shaft and the input gear shaft are in linkage through spline butt joint, the input gear shaft is meshed with the middle bull gear, the middle bull gear is arranged on a first transmission shaft, the middle pinion is further arranged on the first transmission shaft, the final gear is meshed with the middle pinion, the final gear is arranged on a rotatable output shaft, and the front end of the output shaft extends out of the gear box body to be arranged.
Preferably, the motor main part includes box in the motor and connects in motor front end housing and the motor rear end cap at box both ends in the motor, encircles the interior wall of box in the motor and is equipped with motor stator, be equipped with bearing, no. two bearings respectively on the motor main part front and back end, no. two bearings cup joint in the tail end of motor shaft, no. one bearing cup joints in the front end department of motor shaft, has cup jointed motor rotor on being located the motor shaft of motor in the box, the embedded permanent magnet of motor rotor is equipped with in the motor rear end cap can detect motor encoding sensor of motor shaft rotational speed and with motor encoding sensor electric connection's motor encoder.
Preferably, the motor shaft extends out of the end face of the middle box body of the motor and is provided with an oil seal for sealing; the front end of the output shaft extends out of the gear box body, and an oil seal is arranged at the extending part to seal and prevent water.
Preferably, a window is formed in the motor rear end cover, a motor rear cover top cover is arranged on the window upper cover, the encoder sensor is arranged at the rear end of the motor shaft, the motor encoder is arranged on the motor rear end cover, the motor encoder is externally connected with the motor rear cover top cover through bolts so as to protect the encoder, and a sealing ring is used between the motor rear cover top cover and the window.
Preferably, the two ends of the motor rotor are respectively connected with a balance block for correcting dynamic balance of the rotor and preventing the permanent magnet from axially falling out, and the balance blocks are pressed and fixed by nuts.
Preferably, the motor stator winding is connected with a circuit, a motor wire frame is arranged in the motor rear end cover, and the circuit end is connected to the motor wire frame.
Preferably, the first transmission shaft is rotatably arranged in the gear box body through two No. three bearings, the input gear shaft is rotatably arranged in the gear box body through two No. four bearings, and the output shaft is rotatably arranged on the gear box body through two No. five bearings.
Preferably, the front end cover of the motor is fixedly connected with the middle motor box body, the rear end cover of the motor is fixedly connected with the middle motor box body through bolts, and the front end cover and the middle motor box body are sealed and waterproof through sealing rings; the gear box comprises a left gear box body and a right gear box body which are integrally formed, the left gear box body and the right gear box body are connected to a motor main body through bolts, an input gear shaft and a middle pinion are positioned in the left gear box body, and an output shaft and a final gear are positioned in the right gear box body.
Preferably, the motor shaft is sleeved with a backstop gasket, and the backstop gasket is attached to the front end face of the first bearing.
Preferably, the first bearing and the second bearing have the specifications of bearing 6203-2RS, the two third bearings have the specifications of bearing 6002 and bearing 6202, the two fourth bearings have the specifications of bearing 6301 and bearing 61905, and the two fifth bearings have the specifications of bearing 6004-2RS and bearing 6203.
The beneficial effects are that: the motor rotor magnet has the technical characteristics of preventing the rotor magnet from falling off, accurately controlling the rotating speed of the motor and quickly starting, reducing the speed by using a gear box, increasing the climbing capacity of the whole machine, reducing the cost of the motor, along with simple structure, low cost and the like.
Drawings
Fig. 1 is a cross-sectional view of a motor of the present utility model.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be noted that the positional or positional relationship indicated by the terms such as "upper", "lower", "inner", "outer", "left", "right", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "configured," "connected," and the like are to be construed broadly and include, for example, "connected," either fixedly connected, detachably connected, or integrally connected; can be mechanically or indirectly connected through an intermediate medium, but the connection at all places does not affect the multi-position folding of the application. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 1, a specific embodiment of a stepless speed change direct current brushless speed reduction motor for an electric motorcycle is shown, which comprises a motor main body, wherein the upper end of the motor main body is connected with a gear box body, the front end of a motor shaft 5 of the motor main body is arranged in the gear box body, the gear box body is provided with a gear set, the input end of the gear set is linked with the motor shaft 5, the output end of the gear set is linked with an output shaft 16, and the output shaft 16 extends out of the gear box body to be arranged outside;
the gear set comprises an input gear shaft 2, an output shaft 16, a middle pinion 3 and a final gear 18, the motor shaft 5 and the input gear shaft 2 are in linkage through spline butt joint, the input gear shaft 2 is meshed with the middle bull gear 4, the middle bull gear 4 is arranged on a first transmission shaft, the middle pinion 3 is further arranged on the first transmission shaft, the final gear 18 is meshed with the middle pinion 3, the final gear 18 is arranged on the rotatable output shaft 16, the front end of the output shaft 16 extends out of the gear box body, the motor main body comprises a motor middle box 7, a motor front end cover 8 and a motor rear end cover 14 which are connected to the two ends of the motor middle box 7, a motor stator 13 is arranged around the inner wall of the motor middle box 7, a first bearing and a second bearing are respectively arranged on the front end and the rear end of the motor main body, the second bearing is sleeved on the tail end of the motor shaft 5, a motor rotor 12 is sleeved on the motor shaft 5 which is positioned in the motor middle box 7, a permanent magnet 12 is embedded on the motor shaft 5, a sensor 10 which can be electrically connected with a encoder 10 of the motor speed sensor 10 which can be electrically connected with the encoder 10 of the motor rear end cover 14 of the motor and is arranged on the motor middle box 7
The using mode is as follows: the motor coding sensor 10 acquires the rotating speed data in real time, the motor coder 9 can be matched with the prior art, the motor shaft 5 rotates to drive the input gear shaft 2 to rotate, the input gear shaft 2 drives the middle big gear 4 meshed with the input gear shaft 2, the middle big gear 4 rotates to drive the first transmission shaft to rotate, the middle small gear 3 is realized to rotate, the middle small gear 3 rotates to drive the electric final gear 18 to rotate, and the final gear 18 rotates to drive the output shaft 16 to rotate.
The motor rotor 12 is internally embedded with the permanent magnet (strong magnet) to realize brushless direct current deceleration, and the fixed balance weight 11 is pressed by the nut 28, so that the high rotating speed of the motor is ensured, the rotor magnet is ensured not to fall off when the motor runs on a bumpy road, and the magnet cost is reduced; the encoder structure is used, so that the motor rotating speed can be accurately controlled and the motor can be started quickly, digital variable frequency control is realized, the controllability is high, and the rotating speed is accelerated quickly; further, by combining the technical scheme, the external driving plate can be matched with the FOC positive-brown wave control technology, and has the limiting functions of built-in overcurrent protection, overvoltage, undervoltage protection, overtemperature protection and the like, so that the rotor is prevented from demagnetizing, the service life and the efficiency of the motor are improved, and the vibration noise is reduced; the gear box is used for reducing the speed, the climbing capacity of the whole machine is increased, the motor cost is reduced, the device has the characteristics of simple structure, strong climbing capacity, low cost and the like, the torque of the output shaft 16 is increased, and the transmission ratio range of the device is 7.5-14, preferably 8.6.
In the preferred embodiment, the motor main body comprises a motor middle box 7, and a motor front end cover 8 and a motor rear end cover 14 which are connected to two ends of the motor middle box 7, the motor main body is in multistage design, has a tight structure, is convenient to install and overhaul, ensures that each component works efficiently, a motor stator 13 is arranged around the inner wall of the motor middle box 7, a first bearing and a second bearing are respectively arranged on the front end and the rear end of the motor main body, the second bearing is sleeved at the tail end of a motor shaft 5, the first bearing is sleeved at the front end of the motor shaft 5, a motor rotor 12 is sleeved on the motor shaft 5 in the motor middle box 7, a permanent magnet is embedded in the motor rotor 12, and a motor coding sensor 10 capable of detecting the rotating speed of the motor shaft 5 and a motor coder 9 electrically connected with the motor coding sensor 10 are arranged in the motor rear end cover 14.
In a preferred embodiment, an oil seal 26 is arranged at the position, extending out of the end face of the box body 7 in the motor, of the motor shaft 5 so as to seal; the front end of the output shaft 16 extends out of the gear box body, and an oil seal 26 is arranged at the extending position to seal and prevent water.
In the preferred embodiment, a window is formed in the motor rear end cover 14, a motor rear cover top cover 15 is arranged on the window upper cover, an encoder sensor is mounted at the rear end of the motor shaft 5, a motor encoder 9 is mounted on the motor rear end cover 14, the motor encoder 9 is externally connected with the motor rear cover top cover 15 through bolts to protect the encoder, a sealing ring 27 is used for sealing between the motor rear cover top cover 15 and the window, the window is designed, and the motor encoder 9, the motor encoding sensor 10 and the like inside the maintenance can be realized only by opening the motor rear cover top cover 15 with a small size, so that the motor encoder is simple in structure and high in practicability.
In the preferred embodiment, two ends of the motor rotor 12 are respectively connected with a balance block 11 for rotor dynamic balance correction and material removal and permanent magnet axial drop prevention, and the balance blocks 11 are pressed and fixed by nuts 28.
In the preferred embodiment mode, the motor stator 13 is connected with a circuit in a winding manner, the motor coil holder 6 is arranged in the motor rear end cover 14, and the end of the circuit is connected to the motor coil holder 6, so that the structure is simple and the practicability is high.
In the preferred embodiment, the first transmission shaft is rotatably arranged in the gear box body through two third bearings, the input gear shaft 2 is rotatably arranged in the gear box body through two fourth bearings, the output shaft 16 is rotatably arranged on the gear box body through two fifth bearings, the first bearing and the second bearing are respectively provided with a bearing 6203-2RS 20 in specification, the third bearing is respectively provided with a bearing 6002 and a bearing 6202 22 in specification, the fourth bearing is respectively provided with a bearing 6301 24 and a bearing 61905 25 in specification, the two fifth bearings are respectively provided with a bearing 6004-2RS 21 and a bearing 6203 23 in specification, and the above specifications belong to the scheme and are preferably selected according to the size change of the motor.
In a preferred embodiment, the motor front end cover 8 is fixedly connected with the motor middle box 7, and the motor rear end cover 14 is fixedly connected with the motor middle box 7 through bolts and is sealed and waterproof through a sealing ring 27; the gear box body comprises a left gear box body 17 and a right gear box body 17 which are integrally formed, the left gear box body 1 and the right gear box body 17 are connected to a motor main body through bolts, the input gear shaft 2 and the middle pinion 3 are positioned in the left gear box body 1, and the output shaft 16 and the final gear 18 are positioned in the right gear box body 17, so that the gear box is distributed, stable in structure and convenient to operate efficiently.
In the preferred embodiment, the motor shaft 5 is sleeved with a stop washer 19, and the stop washer 19 is attached to the front end surface of the bearing No. one to prevent the bearing No. one from falling off.
Finally, it should be noted that the utility model is not limited to the above embodiments, but that many variants are possible. All modifications directly derived or suggested to one skilled in the art from the present disclosure should be considered as being within the scope of the present utility model.
Claims (10)
1. A stepless speed change direct current brushless gear motor for an electric motorcycle is characterized in that: the motor comprises a motor main body, wherein the upper end of the motor main body is connected with a gear box body, the front end of a motor shaft of the motor main body is arranged in the gear box body, the gear box body is provided with a gear set, the input end of the gear set is linked with the motor shaft, the output end of the gear set is linked with an output shaft, and the output shaft extends out of the gear box body to be arranged;
the gear set comprises an input gear shaft, an output shaft, a middle pinion and a final gear, wherein the motor shaft and the input gear shaft are in linkage through spline butt joint, the input gear shaft is meshed with the middle bull gear, the middle bull gear is arranged on a first transmission shaft, the middle pinion is further arranged on the first transmission shaft, the final gear is meshed with the middle pinion, the final gear is arranged on a rotatable output shaft, and the front end of the output shaft extends out of the gear box body to be arranged.
2. A continuously variable dc brushless deceleration motor for electric motor vehicles according to claim 1, wherein: the motor main part includes box in the motor and connects in motor front end housing and the motor rear end cap at box both ends in the motor, encircles the interior wall of box in the motor and is equipped with motor stator, be equipped with bearing, no. two bearings respectively on the motor main part front and back end, no. two bearings cup joint in the tail end of motor shaft, bearing cup joint in the front end department of motor shaft, have cup jointed motor rotor on being located the motor shaft of motor in the box, the embedded permanent magnet of motor rotor is equipped with in the motor rear end cap can detect motor encoding sensor of motor shaft rotational speed and with motor encoding sensor electric connection's motor encoder.
3. A continuously variable dc brushless deceleration motor for electric motor cars according to claim 2, wherein: an oil seal is arranged at the end face of the motor shaft, extending out of the middle box body of the motor, so as to seal the motor shaft; the front end of the output shaft extends out of the gear box body, and an oil seal is arranged at the extending part to seal and prevent water.
4. A stepless speed change dc brushless speed reducing motor for electric motor car according to claim 2 or 3, wherein: the motor rear end cover is provided with a window, the window upper cover is provided with a motor rear cover top cover, the encoder sensor is arranged at the rear end of the motor shaft, the motor encoder is arranged on the motor rear end cover, the motor encoder is externally connected with the motor rear cover top cover by bolts so as to protect the encoder, and a sealing ring is used for sealing between the motor rear cover top cover and the window.
5. A continuously variable dc brushless deceleration motor for electric motor cars according to claim 2, wherein: and the two ends of the motor rotor are respectively connected with a balance block for correcting dynamic balance of the rotor and preventing the permanent magnet from axially falling out, and the balance blocks are pressed and fixed by nuts.
6. A continuously variable dc brushless deceleration motor for electric motor cars according to claim 2, wherein: the motor stator winding is connected with a circuit, a motor wire frame is arranged in the motor rear end cover, and the end of the circuit is connected to the motor wire frame.
7. A continuously variable dc brushless deceleration motor for electric motor cars according to claim 2, wherein: the first transmission shaft is rotatably arranged in the gear box body through two No. three bearings, the input gear shaft is rotatably arranged in the gear box body through two No. four bearings, and the output shaft is rotatably arranged on the gear box body through two No. five bearings.
8. A continuously variable dc brushless deceleration motor for electric motor cars according to claim 2, wherein: the motor front end cover is fixedly connected with the motor middle box body, the motor rear end cover is fixedly connected with the motor middle box body through bolts, and the motor front end cover is sealed and waterproof through a sealing ring; the gear box comprises a left gear box body and a right gear box body which are integrally formed, the left gear box body and the right gear box body are connected to a motor main body through bolts, an input gear shaft and a middle pinion are positioned in the left gear box body, and an output shaft and a final gear are positioned in the right gear box body.
9. A continuously variable dc brushless deceleration motor for electric motor cars according to claim 2, wherein: the motor shaft is sleeved with a backstop gasket, and the backstop gasket is attached to the front end face of a first bearing.
10. The stepless speed change dc brushless speed reducing motor for electric motorcycle according to claim 7, wherein: the first bearing and the second bearing are respectively provided with a bearing 6203-2RS specification, the third bearing is respectively provided with a bearing 6002 and a bearing 6202, the fourth bearing is respectively provided with a bearing 6301 and a bearing 61905, and the fifth bearing is respectively provided with a bearing 6004-2RS and a bearing 6203.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223349561.1U CN219420393U (en) | 2022-12-14 | 2022-12-14 | Stepless speed change DC brushless speed reducing motor for electric motorcycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223349561.1U CN219420393U (en) | 2022-12-14 | 2022-12-14 | Stepless speed change DC brushless speed reducing motor for electric motorcycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219420393U true CN219420393U (en) | 2023-07-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223349561.1U Active CN219420393U (en) | 2022-12-14 | 2022-12-14 | Stepless speed change DC brushless speed reducing motor for electric motorcycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219420393U (en) |
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2022
- 2022-12-14 CN CN202223349561.1U patent/CN219420393U/en active Active
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