CN211266673U

CN211266673U - Intelligent middle harmonic speed reducing motor

Info

Publication number: CN211266673U
Application number: CN202020150200.6U
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: 2020-01-30
Filing date: 2020-01-30
Publication date: 2020-08-14
Anticipated expiration: 2030-01-30

Abstract

The utility model relates to a put harmonic gear motor in intelligence, including motor and the harmonic reduction gear of being connected with the motor, still include axis torque sensor, axis torque sensor wears to locate in the harmonic reduction gear, harmonic reduction gear axial lead is mutually perpendicular with axis torque sensor's axis, and the torque cover and the chain wheel that power to axis torque sensor were carried through first bevel gear to the harmonic reduction gear. The utility model uses the harmonic reducer to reduce the speed, the reduction ratio of the motor is large, the volume of the motor is small, and the integration with the whole vehicle is good; the utility model has simple and exquisite structure, accurately controls the starting and closing of the motor, and has obvious power-assisted effect; the stability of complete machine cooperation structure is high, and the consumption is little.

Description

Intelligent middle harmonic speed reducing motor

Technical Field

The utility model relates to an electric bicycle field especially relates to a harmonic gear motor is put to 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 the start-up of helping hand is with close especially key, and current electronic helping hand motor speed reduction ratio is little, and the volume of motor is great, and is relatively poor with the wholeness of whole car.

SUMMERY OF THE UTILITY MODEL

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

In order to achieve the above purpose, the utility model adopts the following technical scheme: the intelligent middle harmonic speed reducing motor comprises a motor, a harmonic speed reducer connected with the motor and a middle shaft torque sensor, wherein the middle shaft torque sensor is arranged in the harmonic speed reducer in a penetrating mode, the axial lead of the harmonic speed reducer is perpendicular to the middle shaft of the middle shaft torque sensor, and the harmonic speed reducer conveys power to a torque sleeve and a toothed disc of the middle shaft torque sensor through a first bevel gear.

Preferably, one end of the torsion sleeve is provided with a chain wheel, and the other end of the torsion sleeve is connected with the middle shaft through a first one-way clutch; the torque sleeve is sleeved with a second one-way clutch, the second one-way clutch is provided with a second bevel gear, and the second bevel gear is connected with the first bevel gear of the harmonic reducer.

Preferably, the reduction ratio of the first bevel gear and the second bevel gear is between 1.2 and 1.8.

Preferably, the first bevel gear is installed in a shell of the harmonic reducer through two bearings, a gasket is arranged between the two bearings, and the length of the gasket is greater than 5 mm.

Preferably, the first bevel gear of the harmonic reducer and the head end of the motor rotor are connected with the wave generator sequentially through the flexible gear, the flexible bearing, the inner-tooth steel ring and the wave generator.

Preferably, the shell of the motor is fixedly connected with the shell of the harmonic reducer, a stator support is arranged in the motor, a stator is arranged on the stator support, a motor rotor is arranged on the stator support in a penetrating mode, and a controller is arranged at the tail end of the motor.

Preferably, 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 in a harmonic reducer shell 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 shell of the harmonic reducer and connected with the controller.

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

1) the utility model discloses utilize the harmonic reduction gear to slow down, the motor speed reduction ratio is big, and the volume of motor is less, and is good with the wholeness of whole car.

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

3) 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 sectional structure diagram of the preferred embodiment of the present invention.

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, the intelligent middle harmonic speed reducing motor comprises a motor 1, a harmonic speed reducer 2 connected with the motor 1, and a middle shaft torque sensor 3, wherein the middle shaft torque sensor 3 is arranged in the harmonic speed reducer 2 in a penetrating manner, the axial lead of the harmonic speed reducer 2 is perpendicular to a middle shaft 31 of the middle shaft torque sensor 3, and the harmonic speed reducer 2 transmits power to a torque sleeve 32 and a chain wheel 4 of the middle shaft torque sensor 3 through a first bevel gear 21.

Specifically, one end of the torsion sleeve 32 is provided with the chain wheel 4, and the other end of the torsion sleeve 32 is connected with the middle shaft 31 through a first isolator 33; the torque sleeve 32 is sleeved with a second one-way clutch 34, the second one-way clutch 34 is provided with a second bevel gear 35, the second bevel gear 35 is connected with the first bevel gear 21 of the harmonic reducer 2, the first one-way clutch 33 is a jaw one-way clutch, and the second one-way clutch 34 is a wedge clutch.

Specifically, the reduction ratio of the first bevel gear 21 and the second bevel gear 35 is between 1.2 and 1.8.

Specifically, the first bevel gear 21 is installed in a housing 23 of the harmonic reducer 2 through two bearings 22, a gasket 24 is arranged between the two bearings 22, and the length of the gasket 24 is greater than 5 mm.

Specifically, the first bevel gear 21 of the harmonic reducer 2 and the head end of the motor rotor 11 are connected in sequence through a flexible gear 25, a flexible bearing 26, an internal gear ring 27 and a wave generator 28.

Specifically, a shell 12 of the motor 1 is fixedly connected with a shell 23 of the harmonic reducer 2, a stator support 13 is arranged in the motor 1, a stator 14 is arranged on the stator support 13, a motor rotor 11 is arranged on the stator support 13 in a penetrating mode, and a controller 5 is arranged at the tail end of the motor 1.

Specifically, a torque bracket 36 is arranged at the middle section of the torque sleeve 32, a torque plate 37 is arranged between the head end of the torque bracket 36 and the torque sleeve 32, the torque plate 37 is connected with the controller 5, a power supply plate 38 is arranged in the harmonic reducer casing 23 opposite to the torque plate 37, and the power supply plate 38 is connected with the controller 5 and used for wireless power supply and wireless transmission with the torque plate 37.

Specifically, the magnet 39 is arranged on the middle shaft 31, the hall 301 is arranged opposite to the magnet 39, and the hall 301 is fixed on the inner side of the harmonic reducer shell 23 and connected with the controller 5 for checking whether the middle shaft 31 rotates or is static.

The working principle of the utility model is as follows:

when riding, the second one-way clutch 34 is disengaged, a pedal force is applied to the pedal, the pedal drives the middle shaft 31 to rotate, and the middle shaft 31 drives the torsion sleeve 32 through the first one-way clutch 33 and then drives the chain driven by the chain wheel 4. During power assisting, the torque sleeve 32, the torque plate 37 and the power supply plate 38 transmit detected torque data of the driving chain wheel 4 to the controller 5, the controller 5 controls the motor 1 to work according to the power assisting condition, the second isolator 34 is meshed, the motor 1 drives the second bevel gear 35 through the first bevel gear 21 of the harmonic reducer 2, and the second bevel gear 35 drives the torque sleeve 32 to rotate, so that power assisting is completed. When the rotation of the middle shaft 31 stops, the first isolator 33 is disengaged, and the motor 1 stops rotating.

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 middle harmonic speed reducing motor comprises a motor and a harmonic speed reducer connected with the motor, and is characterized by further comprising a middle shaft torque sensor, wherein the middle shaft torque sensor is arranged in the harmonic speed reducer in a penetrating mode, the axial lead of the harmonic speed reducer is perpendicular to the middle shaft of the middle shaft torque sensor, and the harmonic speed reducer transmits power to a torque sleeve and a toothed disc of the middle shaft torque sensor through a first bevel gear.

2. The intelligent center harmonic speed reducing motor according to claim 1, wherein a chain wheel is arranged at one end of the torque sleeve, and the other end of the torque sleeve is connected with the central shaft through a first isolator; the torque sleeve is sleeved with a second one-way clutch, the second one-way clutch is provided with a second bevel gear, and the second bevel gear is connected with the first bevel gear of the harmonic reducer.

3. The intelligent center-harmonic geared motor of claim 2, wherein the reduction ratio of the first bevel gear and the second bevel gear is between 1.2 and 1.8.

4. The intelligent center-mounted harmonic reducer motor according to claim 2, wherein the first bevel gear is mounted in a housing of the harmonic reducer by two bearings, a gasket is arranged between the two bearings, and the length of the gasket is greater than 5 mm.

5. The intelligent centrally-mounted harmonic speed reduction motor according to claim 2, wherein the first bevel gear of the harmonic speed reducer and the head end of the motor rotor are connected through a flexible gear, a flexible bearing, an internally-toothed steel ring and a wave generator in sequence.

6. The intelligent center-mounted harmonic speed reduction motor according to any one of claims 2 to 5, wherein a housing of the motor is fixedly connected with a housing of the harmonic speed reducer, a stator bracket is arranged in the motor, a stator is arranged on the stator bracket, a rotor of the motor is arranged on the stator bracket in a penetrating manner, and a controller is arranged at the tail end of the motor.

7. The intelligent center-mounted harmonic speed reduction motor according to claim 6, wherein a torque bracket is arranged at the middle section of the torque sleeve, a torque plate is arranged between the head end of the torque bracket and the torque sleeve, the torque plate is connected with the controller, a power supply plate is arranged in a harmonic speed reducer casing 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.

8. The intelligent center-mounted harmonic speed reducer motor according to claim 6, wherein the center shaft is provided with a magnet, and a Hall is arranged opposite to the magnet, and the Hall is fixed on the inner side of the harmonic speed reducer casing and connected with the controller.