CN214451625U

CN214451625U - Intelligent central motor

Info

Publication number: CN214451625U
Application number: CN202120001497.4U
Authority: CN
Inventors: 唐明喜; 陈世伟
Original assignee: Shenzhen Xidesheng Bicycle Co Ltd
Current assignee: Shenzhen Xidesheng Bicycle Co Ltd
Priority date: 2021-01-01
Filing date: 2021-01-01
Publication date: 2021-10-22
Anticipated expiration: 2031-01-01

Abstract

The utility model relates to a put motor in intelligence, including motor and the reduction gear of being connected with the motor, its characterized in that still includes axis torque sensor, and the main shaft of motor and the planet carrier output shaft of reduction gear pass through planet speed reduction structural connection and set up with the axle center, and the axial lead of planet carrier output shaft is perpendicular but the non-intersect with axis torque sensor's axis mutually, is connected through helical gear speed reduction structure between planet carrier output shaft and axis torque sensor's the torsion cover. The axial lead of the output shaft of the planet support of the utility model is vertical to but not intersected with the center shaft of the center shaft torsion sensor, and the center shaft of the center shaft torsion sensor, the output shaft of the planet support and the motor spindle are positioned on different planes; when the motor is arranged on the frame in the middle of the intelligence, the arranged angle is more flexible, and the combination between the motor and the frame in the middle of the intelligence is more compact.

Description

Intelligent central motor

Technical Field

The utility model relates to an electric bicycle field especially relates to a put motor in intelligence.

Background

Along with the reinforcing of people's environmental protection consciousness, the electric bicycle that has energy-efficient more and more receives people's favor, and people experience the requirement to the electronic helping hand of current bicycle more and more high, and current electronic helping hand motor overall structure is comparatively single, and the assembly methods when installing on the frame are more single, and the intercombination is compact inadequately.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's defect, and put motor in intelligence is provided.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the intelligent centrally-mounted motor comprises a motor and a speed reducer connected with the motor, and is characterized by further comprising a center shaft torque sensor, a main shaft of the motor and a planet support output shaft of the speed reducer are connected through a planet speed reducing structure and are arranged coaxially, the axis line of the planet support output shaft is perpendicular to but not intersected with the center shaft of the center shaft torque sensor, and the planet support output shaft is connected with a torque sleeve of the center shaft torque sensor through a spiral gear speed reducing structure.

Preferably, the planetary reduction structure comprises a sun gear fixed on the motor main shaft and a planet gear arranged on a planet carrier, the sun gear, the planet gear and an inner gear ring arranged on the inner wall of the shell are sequentially in gear connection, the planet carrier is connected with the inner wall of the shell through a bearing, and an output end hole of the planet carrier is fixedly connected with an output shaft of the planet carrier.

Preferably, the spiral gear reduction structure comprises a first spiral gear arranged at the end of the output shaft of the planet carrier, an intermediate shaft arranged in the shell and parallel to the central shaft, a second spiral gear and a first helical gear fixedly connected with the intermediate shaft, and a second helical gear arranged on the torsion sleeve, wherein the first spiral gear and the second spiral gear are in gear connection, and the first helical gear and the second helical gear are in gear connection.

Preferably, a wedge-shaped clutch is arranged between the second helical gear and the torsion sleeve, the torsion sleeve is connected with the middle shaft through a bearing, the outer end of the torsion sleeve extending out of the shell is fixedly connected with a toothed disc, and the inner end of the torsion sleeve is connected with the middle shaft through a jaw clutch.

Preferably, motor casing and reduction gear casing fixed connection establish the stator support in the motor casing, establish the stator on the stator support, and on the stator support was worn to locate by electric motor rotor, establish the controller in the reduction gear casing.

Preferably, the torsion sleeve is provided with a strain gauge, the middle section of the torsion sleeve is provided with a torsion support, a torque plate is arranged between the head end of the torsion support and the torsion sleeve, the torque plate is connected with the controller, a power supply plate is arranged opposite to the torque plate, and the power supply plate is connected with the controller and used for wireless power supply and wireless transmission with the torque plate.

Preferably, the middle shaft is provided with a magnet, a Hall is arranged opposite to the magnet, and the Hall is fixed on the inner side of the speed reducer shell and connected with the controller.

Compared with the prior art, the utility model beneficial effect be:

1) the axial lead of the output shaft of the planet support of the utility model is vertical to the center shaft of the center shaft torsion sensor but not intersected, namely, the center shaft of the center shaft torsion sensor, the output shaft of the planet support and the motor spindle are positioned on different planes; when the intelligent mid-motor is installed on the frame, the body of the intelligent mid-motor can flexibly adapt to the shape of the frame, and the motor shell part of the intelligent mid-motor can be hidden in the frame and is combined with the frame more compactly.

2) The utility model discloses the motor reduction ratio is big, and the volume of motor is less, and is good with the wholeness of whole car.

3) The utility model discloses simple structure is exquisite, accurate control motor's start-up and closing, and the helping hand effect is obvious.

4) The utility model discloses complete machine cooperation structure's stability is high, and the consumption is little.

The invention is further described with reference to the accompanying drawings and specific embodiments.

Drawings

FIG. 1 is a schematic cross-sectional view of a preferred embodiment of the present invention;

FIG. 2 is a schematic sectional view A-A of FIG. 1.

Detailed Description

In order to more fully understand the technical content of the present invention, the technical solution of the present invention will be further described and explained with reference to the specific embodiments.

As shown in fig. 1 and 2, the intelligent centrally-mounted motor comprises a motor 1, a speed reducer 2 connected with the motor, and a center shaft torque sensor 3, wherein a main shaft 11 of the motor 1 and a planet carrier output shaft 41 of the speed reducer 2 are connected through a planet speed reducing structure 4 and coaxially arranged, an axial lead of the planet carrier output shaft 41 is perpendicular to a center shaft 31 of the center shaft torque sensor 3 but not intersected, and the planet carrier output shaft 41 is connected with a torque sleeve 32 of the center shaft torque sensor 3 through a helical gear speed reducing structure 5.

Specifically, the planetary reduction structure 4 includes a sun gear 12 fixed on the motor spindle 11 and a planet gear 43 disposed on a planet carrier 42, the sun gear 12, the planet gear 43 and an inner gear ring 44 disposed on the inner wall of the housing are sequentially in gear connection, the planet carrier 42 is connected with the inner wall of the housing through a bearing, and an output end hole 45 of the planet carrier 42 is fixedly connected with the planet carrier output shaft 41.

Specifically, the spiral gear reduction structure 5 includes a first spiral gear 51 disposed at an end of the planet carrier output shaft 41, an intermediate shaft 53 disposed in the housing and parallel to the central shaft 31, a second spiral gear 52 and a first helical gear 54 fixedly connected to the intermediate shaft 53, and a second helical gear 55 disposed on the torsion sleeve 32, wherein the first spiral gear 51 and the second spiral gear 52 are in gear connection, and the first helical gear 54 and the second helical gear 55 are in gear connection.

Specifically, a wedge clutch 33 is arranged between the second helical gear 55 and the torque sleeve 32, the torque sleeve 32 is connected with the middle shaft 5 through a bearing, the outer end of the torque sleeve 6 extending out of the shell is fixedly connected with the chain wheel 6, and the inner end of the torque sleeve 32 is connected with the middle shaft 31 through a jaw clutch 34.

Specifically, a motor housing 16 and a reducer housing 21 are fixedly connected, a stator support 13 is arranged in the motor housing 16, a stator 14 is arranged on the stator support 13, a motor rotor 15 is arranged on the stator support 13 in a penetrating manner, and a controller 7 is arranged in the reducer housing 21.

Specifically, a strain gauge is arranged on the torque sleeve 32, a torque bracket 35 is arranged in the middle of the torque sleeve 32, a torque plate 36 is arranged between the head end of the torque bracket 35 and the torque sleeve 32, the torque plate 36 is connected with the controller 7, a power supply plate 37 is arranged opposite to the torque plate 36, and the power supply plate 37 is connected with the controller 7 and used for wireless power supply and wireless transmission with the torque plate 36.

Specifically, the middle shaft 31 is provided with a magnet 38, and a hall is arranged opposite to the magnet 38, fixed on the inner side of the reducer shell and connected with the controller 7.

The working principle of the utility model is as follows:

when riding, a pedal force is applied to the pedal, the pedal drives the middle shaft 31 to rotate, the middle shaft 31 drives the torque sleeve 32 through the jaw clutch 34, the strain gauge, the torque plate 36 and the power supply plate 37 on the torque sleeve 32 transmit detected torque data to the controller 7, and the controller 7 controls the motor rotor 15 to work according to a power assisting condition to finish power assisting.

When riding in the neutral state, the wedge clutch 33 is disengaged, and the first helical gear 51, the second helical gear 52, the first helical gear 54, and the second helical gear 55 stop rotating, so that no interference occurs with pedaling riding.

When the pedal is stopped to be stepped on, the middle shaft 31 and the torque sleeve 32 stop rotating, the jaw clutch 34 between the torque sleeve 32 and the middle shaft 31 is disengaged, the magnet 38 is arranged opposite to the Hall 39 and does not rotate, the controller 7 receives a signal of the Hall 39, and when the controller detects that the middle shaft 31 does not rotate, the controller stops working.

The technical content of the present invention is further described by the above embodiments only, so that the reader can understand the technical content more easily, but the embodiments of the present invention are not limited thereto, wherein the local structure and the connection mode of each component can be adjusted to some extent according to the actual situation, and any technical extension or re-creation according to the present invention is protected by the present invention.

Claims

1. The intelligent centrally-mounted motor comprises a motor and a speed reducer connected with the motor, and is characterized by further comprising a center shaft torque sensor, a main shaft of the motor and a planet support output shaft of the speed reducer are connected through a planet speed reducing structure and are arranged coaxially, the axis line of the planet support output shaft is perpendicular to but not intersected with the center shaft of the center shaft torque sensor, and the planet support output shaft is connected with a torque sleeve of the center shaft torque sensor through a spiral gear speed reducing structure.

2. The intelligent centrally-mounted motor according to claim 1, wherein the planetary reduction structure comprises a sun gear fixed on the main shaft of the motor and a planet gear arranged on a planet carrier, the sun gear, the planet gear and an inner gear ring arranged on the inner wall of the housing are sequentially in gear connection, the planet carrier is connected with the inner wall of the housing through a bearing, and an output end hole of the planet carrier is fixedly connected with an output shaft of the planet carrier.

3. The intelligent centrally-mounted motor according to claim 1, wherein the spiral gear reduction structure comprises a first spiral gear arranged at the end of the output shaft of the planet carrier, an intermediate shaft arranged in the casing and parallel to the central shaft, a second spiral gear and a first helical gear fixedly connected with the intermediate shaft, and a second helical gear arranged on the torsion sleeve, wherein the first spiral gear and the second spiral gear are in gear connection, and the first helical gear and the second helical gear are in gear connection.

4. The intelligent centrally-mounted motor according to claim 3, wherein a wedge clutch is arranged between the second helical gear and the torsion sleeve, the torsion sleeve is connected with the middle shaft through a bearing, an outer end of the torsion sleeve extending out of the shell is fixedly connected with a chain wheel, and an inner end of the torsion sleeve is connected with the middle shaft through a jaw clutch.

5. The intelligent centrally-mounted motor according to claim 1, wherein the motor housing is fixedly connected with the reducer housing, a stator support is arranged in the motor housing, a stator is arranged on the stator support, the motor rotor is arranged on the stator support in a penetrating mode, and the controller is arranged in the reducer housing.

6. The intelligent centrally-mounted motor according to claim 1, wherein a strain gauge is arranged on the torque sleeve, a torque support is arranged in the middle of the torque sleeve, a torque plate is arranged between the head end of the torque support and the torque sleeve, the torque plate is connected with the controller, a power supply plate is arranged opposite to the torque plate, and the power supply plate is connected with the controller and used for wireless power supply and wireless transmission with the torque plate.

7. The intelligent centrally-mounted motor according to claim 6, wherein a magnet is arranged on the central shaft, a Hall is arranged opposite to the magnet, and the Hall is fixed on the inner side of the reducer shell and connected with the controller.