CN210634698U - Middle motor of two-stage transmission moped - Google Patents
Middle motor of two-stage transmission moped Download PDFInfo
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- CN210634698U CN210634698U CN201920937485.5U CN201920937485U CN210634698U CN 210634698 U CN210634698 U CN 210634698U CN 201920937485 U CN201920937485 U CN 201920937485U CN 210634698 U CN210634698 U CN 210634698U
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Abstract
The utility model discloses a put motor in second grade transmission vehicle using motor relates to the motor field. The existing middle-mounted motor is generally of a parallel expansion type structure, and has a lifting space in the aspects of clutch efficiency, transmission effect and torque feedback. The utility model discloses a casing, motor element, transmission assembly, the axis, a controller, one way clutch, torque sensor and auxiliary power take off dish, transmission assembly is second grade gear speed reduction system, transmission assembly's one-level transmission gear wheel and the drive gear meshing of rotor shaft, the one-level transmission gear wheel is fixed in the epaxial of second grade transmission pinion, second grade transmission pinion and driven gear engagement, driven gear wheel and one way clutch's axle collar cooperation, one way clutch, torque sensor's deformation takes place part and axis and loops through gear engagement and connects, torque sensor is connected with the controller electricity. Overall structure is simple, and the response is sensitive, power take off is effectual, and the separation and reunion is efficient, has promoted the helping hand effect effectively.
Description
Technical Field
The utility model relates to a motor field especially relates to a put motor in second grade transmission vehicle using motor.
Background
The moped is also called a power-assisted electric bicycle, provides kinetic energy required by the bicycle in the process of advancing by electric power-assisted manpower, and is energy-saving, environment-friendly, light and safe; at present, electric moped is popular in foreign markets, such as europe, japan, and the like. In China, the electric vehicle still occupies the main market, and most of the electric vehicles adopt hub type driving, wherein the hub type driving is to arrange a motor at the front wheel or the rear wheel of the body of the electric vehicle, so that the gravity center of the whole vehicle is deviated from the front or the rear, and the electric vehicle is not in line with the riding mode of people. And the mounting mode of the hub motor also increases the difficulty of maintenance, and increases the use cost.
The existing built-in motor is usually of a parallel unfolding structure, and the structure of the existing built-in motor usually comprises a shell, a motor body, a gear reduction mechanism, a clutch, a middle shaft and a chain wheel used as an auxiliary power output. The core shaft of the motor body is connected with the chain wheel or the positioning component thereof sleeved on the middle shaft through a gear reduction mechanism. At present, a gear reduction mechanism mainly adopts multi-stage gear transmission to replace a planetary gear reduction mechanism with a relatively complex structure and more parts. The clutch is usually installed between some intermediate gear and its transmission shaft of the gear reduction mechanism, and when the bicycle is coasting, the clutch can cut off the transmission connection between the chain wheel and the spindle of the motor body, eliminating interference. However, the existing middle motor has a space for improving the clutch efficiency, the transmission effect and the torque feedback.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model and the technical task that provides are perfect and improve prior art scheme, provide the motor in the secondary drive vehicle using motor to promote the helping hand effect and be the purpose. Therefore, the utility model adopts the following technical scheme.
A middle motor of a two-stage transmission moped comprises a shell, a motor component, a transmission component, a middle shaft, a controller, a one-way clutch, a torque sensor and an auxiliary power output disc, the motor component is connected with the middle shaft through the transmission component, the motor component comprises a rotor shaft provided with a transmission gear, the transmission component is a secondary gear reduction system and comprises a primary transmission big gear, a secondary transmission small gear with a wheel shaft and a driven big gear, the primary driving gearwheel is meshed with a driving gear of the rotor shaft, the primary driving gearwheel is fixed on a wheel shaft of the secondary driving pinion, the secondary transmission pinion is meshed with the driven gearwheel, the driven gearwheel and the middle shaft are in a concentric structure, a one-way clutch is arranged between the driven gearwheel and the middle shaft, and the driven gearwheel is in transmission connection with the auxiliary power output disc; the torque sensor is arranged on the middle shaft and is electrically connected with the controller. The second-level gear transmission mechanism reduces the output of the rotating speed of the motor through a reasonable reduction ratio, improves the torque output of the motor, can effectively improve the transmission effect, can effectively improve the clutch efficiency by arranging the clutch on the middle shaft, and during work, the middle shaft can sensitively feed the torque state of the middle shaft back to the controller through the torque sensor, and the controller realizes the power output control of the motor.
As a preferable technical means: the transmission gear, the primary transmission big gear, the secondary transmission small gear and the driven big gear of the rotor shaft are all cylindrical helical gears. Compared with a straight gear, the cylindrical helical gear has the advantages that the cylindrical helical gear bears higher torque impact, power transmission is more stable, the pause and the torque feeling during output of auxiliary power can be effectively reduced, and the transmission effect is better.
As a preferable technical means: the driven gearwheel comprises an input tooth part, an output tooth part and a bearing outer gear arranged between the input tooth part and the output tooth part, the driven gearwheel is rotatably connected with the casing through a bearing arranged on the bearing outer gear, and the output tooth part is positioned outside the casing and is meshed with an auxiliary power output disc provided with an inner gear. The structure is simple, and the power is effectively transmitted to the auxiliary power output disc through the driven large gear.
As a preferable technical means: the torque sensor is a pressure-variable bilateral torque sensor and comprises a deformation generation part, a deformation induction part and a fixing plate, wherein the deformation generation part of the one-way clutch and the torque sensor is meshed with each other through an inner gear and an outer gear, the deformation generation part of the torque sensor is meshed with a middle shaft through the inner gear and the outer gear, and the deformation induction part is fixed in a machine shell through the fixing plate. The torque sensor is a pressure-variable bilateral torque sensor directly mounted on the middle shaft, a deformation generating part of the torque sensor generates extremely fine torque deformation when stressed, the magnitude of the current treading torque can be obtained by measuring fine deformation signals on the surface of the deformation generating part, the current treading torque is converted into voltage signals and transmitted to the controller, so that the controller can more reasonably distribute the assistance of the motor, the riding is comfortable, and the torque sensor is environment-friendly and energy-saving; the torque is transmitted in a mode that the internal gear is meshed with the external gear, the reliability is good, and the sensitivity is high.
As a preferable technical means: the inner gear and the outer gear are straight cylindrical gears. When the cylindrical spur gear transmits torque, the transmission loss is small, and compared with other gear structures, the sensitivity is higher.
As a preferable technical means: the motor assembly comprises a linear stator, a rotor and an end cover, wherein the linear stator is fixedly arranged in the end cover, the end cover is fixed on an end cover interface of the machine shell through screws, the end cover and the machine shell form a closed shell together, one end of the rotor shaft is rotatably connected with the machine shell through a bearing, and the other end of the rotor shaft is rotatably connected with the end cover through a bearing. Simple structure has realized motor element's connection is fixed effectively.
As a preferable technical means: the controller on be equipped with the couple, the casing on be located one side of controller and be equipped with the detachably closing cap, the closing cap inner wall be equipped with the hook groove, the hook handle of couple has elastic construction, the hook handle inlays in the hook groove behind the spreading glue, the hook handle side direction suppress at hook groove lateral wall. The controller is effectively connected and fixed, the structure is simple, the fixation is firm and reliable through the double fixing mode of glue and the hook handle, and the detachable sealing cover is convenient to detach and maintain.
As a preferable technical means: the casing comprises a left casing and a right casing, and the two casings are fixed through a screw rod. Simple structure, convenient installation and convenient manufacture.
As a preferable technical means: the shell is made of aluminum alloy materials. The weight can be effectively reduced, compared with engineering plastics, the aluminum alloy material is convenient for finish machining, the final size precision is high, the influence of the environmental temperature is small, and the comprehensive performance is good.
As a preferable technical means: the first-stage transmission gear wheel is made of nylon materials. On the basis of meeting the working requirements, the material cost can be effectively reduced, and the weight of the whole machine is reduced.
As a preferable technical means: the auxiliary power output disc is a cross disc, and 4 end parts of the cross disc are provided with connecting and fixing holes. The chain wheel or the belt pulley can be adopted for connection according to the requirement, so that the use requirements of different middle motors can be met.
Has the advantages that:
1. the second-stage gear transmission mechanism reduces the output of the rotating speed of the motor through a reasonable reduction ratio, improves the output of the torque of the motor, and can effectively improve the transmission effect.
2. The first-stage transmission big gear wheel is made of nylon materials, mechanical strength, wear resistance and corrosion resistance of the first-stage transmission big gear wheel meet working requirements of a motor, production cost can be effectively reduced, and weight of the whole machine is reduced.
3. The pressure-variable bilateral torque sensor conducts the induction torque in a mode of meshing the inner gear and the outer gear, has good reliability and high sensitivity, makes riding comfortable, and is environment-friendly and energy-saving.
4. The one-way clutch is arranged on the middle shaft, so that the power of the motor can be effectively transmitted to the hub through the speed reducing system, the rotation of the hub cannot be driven by the motor, and the one-way transmission is realized.
5. The controller can be stably and reliably directly fixed in the hook groove of the casing by the double fixing mode that the hook is matched with the special glue, so that the controller is firmly and stably installed in the working process of the motor.
Drawings
Fig. 1 is a schematic structural diagram of the utility model after the hull is broken.
Fig. 2 is a schematic structural diagram of the present invention after the casing is removed.
Fig. 3 is a schematic sectional structure of the present invention.
Fig. 4 is a schematic view of the structure of the driven gearwheel of the present invention.
In the figure: 1-a machine shell; 2-a motor assembly; 3-first stage driving gear wheel; 4-driven bull gear; 5-the middle axis; 6-auxiliary power output disc; 7-sealing the cover; 8-end shield; 9-a torque sensor; 10-one-way clutch; 11-a controller; 12-hanging hooks; 13-a secondary drive pinion; 201-rotor shaft; 202-a rotor; 203-wire stator; 20101-drive gear; 401 — input teeth; 402-bearing outer rail; 403-output toothing; 601-connecting a fixing hole; 901-deformation occurrence part; 902-a deformation sensing portion; 903-fixing plate.
Detailed Description
The technical solution of the present invention will be further described in detail with reference to the accompanying drawings.
As shown in fig. 1-4, a mid-motor of a two-stage transmission power-assisted vehicle comprises a casing 1, a motor component 2, a transmission component, a middle shaft 5, a controller 11, a one-way clutch 10, a torque sensor 9 and an auxiliary power output disc 6, wherein the motor component 2 is connected with the middle shaft 5 through the transmission component, the motor component 2 comprises a rotor shaft 201 provided with a transmission gear 20101, the transmission component is a two-stage gear reduction system and comprises a first-stage transmission large gear 3, a second-stage transmission small gear 13 with a wheel shaft and a driven large gear 4, the first-stage transmission large gear 3 is meshed with the transmission gear 20101 of the rotor shaft 201, the first-stage transmission large gear 3 is fixed on the wheel shaft of the second-stage transmission small gear 13, the second-stage transmission small gear 13 is meshed with the driven large gear 4, the driven large gear 4 and the middle, the driven gearwheel 4 is in transmission connection with an auxiliary power output disc 6; the torque sensor 9 is arranged on the middle shaft 5, and the torque sensor 9 is electrically connected with the controller 11.
In order to obtain better transmission effect, the transmission gear 20101, the primary transmission gearwheel 3, the secondary transmission pinion 13 and the driven gearwheel 4 of the rotor shaft 201 are all cylindrical helical gears. Compared with a straight gear, the cylindrical helical gear has the advantages that the cylindrical helical gear bears higher torque impact, power transmission is more stable, the pause and the torque feeling during output of auxiliary power can be effectively reduced, and the transmission effect is better.
In order to realize power output, the wheel shaft of the secondary transmission pinion 13 is rotatably connected in the machine shell 1 through a bearing; the driven gearwheel 4 comprises an input tooth part 401, an output tooth part 403 and a bearing outer gear 402 arranged between the input tooth part 401 and the output tooth part 403, the driven gearwheel 4 is rotatably connected with the machine shell 1 through a bearing arranged on the bearing outer gear 402, and the output tooth part 403 is positioned outside the machine shell 1 and is meshed with an auxiliary power output disc 6 provided with an internal gear. The structure is simple, and the power is effectively transmitted to the auxiliary power output disc 6 through the driven large gear 4.
In order to realize sensitive torque induction, the torque sensor 9 is a pressure-variable bilateral torque sensor 9, and comprises a deformation generating part 901, a deformation induction part 902 and a fixing plate 903, wherein the one-way clutch 10 is meshed with the deformation generating part 901 of the torque sensor 9 through an internal gear and an external gear, the deformation generating part 901 of the torque sensor 9 is meshed with the middle shaft 5 through the internal gear and the external gear, and the deformation induction part 902 is fixed in the machine shell 1 through the fixing plate 903. The torque sensor 9 is a pressure-variable bilateral torque sensor 9 directly mounted on the middle shaft 5, a deformation generating part 901 of the torque sensor 9 generates extremely fine torque deformation when stressed, the magnitude of the current treading torque can be obtained by measuring fine deformation signals on the surface of the deformation generating part 901, the current treading torque is converted into voltage signals and transmitted to the controller 11, so that the controller 11 can more reasonably distribute the motor assistance, the riding is comfortable, and the environment is protected and energy is saved; the torque is transmitted in a mode that the internal gear is meshed with the external gear, the reliability is good, and the sensitivity is high.
In order to sense the torque more sensitively, the inner and outer gears are spur gears. When the cylindrical spur gear transmits torque, the transmission loss is small, and compared with other gear structures, the sensitivity is higher.
In order to realize the connection and fixation of the motor assembly 2, the motor assembly 2 comprises a wire stator 203, a rotor 202 and an end cover 8, the wire stator 203 is fixedly arranged in the end cover 8, the end cover 8 is fixed on an interface of the end cover 8 of the machine shell 1 through screws, the end cover 8 and the machine shell 1 form a closed shell together, one end of a rotor shaft 201 is rotatably connected with the machine shell 1 through a bearing, the other end of the rotor shaft 201 is rotatably connected with the end cover 8 through a bearing, and magnetic steel 20201 in the rotor 202 is fixed in a magnetic steel groove of the rotor 202 through glue. Simple structure has realized motor element 2's connection is fixed effectively.
In order to reliably fix the controller 11 and facilitate maintenance, the controller 11 is provided with a hook 12, a detachable sealing cover 7 is arranged on one side of the casing 1, which is positioned on the controller 11, the inner wall of the sealing cover 7 is provided with a hook groove, a hook handle of the hook 12 is provided with an elastic structure and is embedded in the hook groove after glue spreading, and the hook handle is laterally pressed on the side wall of the groove of the hook 12. The controller 11 is effectively connected and fixed, the structure is simple, the fixation is firm and reliable through the double fixing mode of glue and the hook handle, and the detachable sealing cover 7 is convenient to detach and maintain.
For the convenience of manufacture, the casing 1 includes a left casing and a right casing, and the two casings are fixed by screws. Simple structure, convenient installation and convenient manufacture.
In order to realize better comprehensive performance, the casing 1 is made of an aluminum alloy material. The weight can be effectively reduced, compared with engineering plastics, the aluminum alloy material is convenient for finish machining, the final size precision is high, the influence of the environmental temperature is small, and the comprehensive performance is good.
In order to reduce the weight, the primary driving gearwheel 3 is made of nylon material. On the basis of meeting the working requirements, the material cost can be effectively reduced, and the weight of the whole machine is reduced.
In order to meet the use requirements of different middle-placed motors, the auxiliary power output disc 6 is a cross disc, and 4 end parts of the cross disc are provided with connecting and fixing holes 601. The chain wheel or the belt pulley can be adopted for connection according to the requirement, so that the use requirements of different middle motors can be met.
When the electric power-assisted bicycle is operated by manpower, the middle shaft 5 rotates along with the electric power-assisted bicycle, the deformation generating part 901 of the torque sensor 9 generates corresponding deformation along with the magnitude of the transmission torque while transmitting the torque, the deformation can be linearly changed according to the magnitude of the applied torque, the deformation is converted into a voltage signal by the torque sensor 9 and is output, and the voltage signal value can be linearly changed along with the magnitude of the deformation generating part 901; the voltage signal is transmitted to the deformation sensing portion 902 of the torque sensor 9 and is transmitted to the external controller 11 through the signal lead-out wire.
The controller 11 calculates the magnitude of the manual pedal torque according to the received voltage signal value, and then controls the motor assembly 2 to output the motor power.
After the motor component 2 receives an instruction of the controller 11, the rotor 202 rotates, the rotor shaft 201 serves as a driving wheel and drives the primary transmission gearwheel 3 to rotate through the transmission gear 20101 on the driving wheel, and the primary transmission gearwheel 3 is arranged on a wheel shaft of the secondary transmission pinion 13, so that the secondary transmission pinion 13 rotates together with the primary transmission gearwheel 3; the shaft of the secondary transmission pinion 13 drives the driven gearwheel 4 to rotate through meshing with the driven gearwheel 4; the driven gearwheel 4 is matched with a shaft collar of the one-way clutch 10 to drive the one-way clutch 10 to rotate; the one-way clutch 10 is meshed with the deformation generating part 901 of the torque sensor 9 through the inner gear and the outer gear, and the deformation generating part 901 of the torque sensor 9 is meshed with the middle shaft 5 through the inner gear and the outer gear, so that the middle shaft 5 is driven to rotate, and the power assisting effect is achieved.
The above two-stage transmission moped middle motor shown in fig. 1-4 is a specific embodiment of the present invention, which embodies the outstanding substantive features and significant progress of the present invention, and can perform equivalent modification of the shape, structure, etc. according to the actual use requirement, all within the protection scope of the present solution.
Claims (10)
1. The utility model provides a put motor in secondary drive vehicle using motor, includes casing (1), motor element (2), drive assembly, axis (5), controller (11), one way clutch (10), torque sensor (9) and auxiliary power take off dish (6), motor element (2) and axis (5) between pass through drive assembly connect its characterized in that: the motor component (2) comprises a rotor shaft (201) provided with a transmission gear (20101), the transmission component is a secondary gear reduction system and comprises a primary transmission large gear (3), a secondary transmission small gear (13) with a wheel shaft and a driven large gear (4), the primary transmission large gear (3) is meshed with the transmission gear (20101) of the rotor shaft (201), the primary transmission large gear (3) is fixed on the wheel shaft of the secondary transmission small gear (13), the secondary transmission small gear (13) is meshed with the driven large gear (4), the driven large gear (4) and a middle shaft (5) are of a concentric structure, a one-way clutch (10) is arranged between the driven large gear (4) and the middle shaft (5), and the driven large gear (4) is in transmission connection with an auxiliary power output disc (6); the torque sensor (9) is arranged on the middle shaft (5), and the torque sensor (9) is electrically connected with the controller (11).
2. The middle motor of the two-stage transmission moped as claimed in claim 1, wherein: the transmission gear (20101), the primary transmission large gear (3), the secondary transmission small gear (13) and the driven large gear (4) of the rotor shaft (201) are all cylindrical helical gears.
3. The middle motor of the two-stage transmission moped as claimed in claim 2, wherein: the driven gearwheel (4) comprises an input tooth part (401), an output tooth part (403) and a bearing outer gear (402) arranged between the input tooth part (401) and the output tooth part (403), the driven gearwheel (4) is rotatably connected with the machine shell (1) through a bearing arranged on the bearing outer gear (402), and the output tooth part (403) is positioned outside the machine shell (1) and is meshed with an auxiliary power output disc (6) provided with an internal gear.
4. The middle motor of the two-stage transmission moped as claimed in claim 1, wherein: the torque sensor (9) is a pressure-variable bilateral torque sensor (9) and comprises a deformation generating part (901), a deformation sensing part (902) and a fixing plate (903), the deformation generating part (901) of the one-way clutch (10) and the torque sensor (9) are meshed through an internal gear and an external gear, the deformation generating part (901) of the torque sensor (9) is meshed with the middle shaft (5) through the internal gear and the external gear, and the deformation sensing part (902) is fixed in the machine shell (1) through the fixing plate (903).
5. The middle motor of the two-stage transmission moped as claimed in claim 4, wherein: the inner gear and the outer gear are straight cylindrical gears.
6. The middle motor of the two-stage transmission moped as claimed in claim 1, wherein: motor element (2) including line stator (203), rotor (202) and end shield (8), line stator (203) are fixed to be located in end shield (8), end shield (8) pass through the fix with screw on end shield (8) interface of casing (1), end shield (8) and casing (1) form closed housing together, the bearing is passed through to the one end of rotor shaft (201) and casing (1) rotatable coupling, the bearing is passed through to the other end of rotor shaft (201) and end shield (8) rotatable coupling.
7. The middle motor of the two-stage transmission moped as claimed in claim 1, wherein: controller (11) on be equipped with couple (12), casing (1) on lie in one side of controller (11) and be equipped with detachably closing cap (7), closing cap (7) inner wall be equipped with the hook groove, the hook handle of couple (12) has elastic construction, inlay in the hook groove behind the spreading glue hook handle, hook handle side direction suppress at couple (12) groove lateral wall.
8. The middle motor of the two-stage transmission moped as claimed in claim 6, wherein: the machine shell (1) comprises a left shell and a right shell which are fixed through a screw.
9. The mid-motor of the two-stage transmission moped as recited in claim 8, characterized in that: the shell (1) is made of aluminum alloy materials.
10. The middle motor of the two-stage transmission moped as claimed in claim 1, wherein: the primary transmission gearwheel (3) is made of nylon material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920937485.5U CN210634698U (en) | 2019-06-21 | 2019-06-21 | Middle motor of two-stage transmission moped |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920937485.5U CN210634698U (en) | 2019-06-21 | 2019-06-21 | Middle motor of two-stage transmission moped |
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| Publication Number | Publication Date |
|---|---|
| CN210634698U true CN210634698U (en) | 2020-05-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920937485.5U Active CN210634698U (en) | 2019-06-21 | 2019-06-21 | Middle motor of two-stage transmission moped |
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| CN (1) | CN210634698U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110525572A (en) * | 2019-06-21 | 2019-12-03 | 卧龙电气驱动集团股份有限公司 | A kind of secondary transmission vehicle using motor built-in motor |
-
2019
- 2019-06-21 CN CN201920937485.5U patent/CN210634698U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110525572A (en) * | 2019-06-21 | 2019-12-03 | 卧龙电气驱动集团股份有限公司 | A kind of secondary transmission vehicle using motor built-in motor |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210629 Address after: 312300 Economic Development Zone, Shangyu District, Shaoxing City, Zhejiang Province Patentee after: WOLONG ELECTRIC GROUP Co.,Ltd. Patentee after: Zhejiang Ouli Driving System Co.,Ltd. Address before: 312300 Economic Development Zone, Shangyu District, Shaoxing City, Zhejiang Province Patentee before: WOLONG ELECTRIC GROUP Co.,Ltd. Patentee before: SHAOXING OLI-WOLONG VIBRATION MACHINERY Co.,Ltd. |
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| TR01 | Transfer of patent right |