CN210478383U

CN210478383U - Large-torque miniature electric driving wheel

Info

Publication number: CN210478383U
Application number: CN201921316750.4U
Authority: CN
Inventors: 叶开成; 陆小峰; 蒋赛虎; 许樱; 唐晓龙; 杨莹
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-08-14
Filing date: 2019-08-14
Publication date: 2020-05-08
Anticipated expiration: 2029-08-14

Abstract

The utility model discloses a large-torque micro electric driving wheel, which comprises an outer shell and a left end cover arranged on the outer shell, wherein the left end cover is connected with the left end of a transmission connecting shaft through a groove; the self-locking parking can be realized through the gear of the worm wheel and the worm, the labor is saved, the structure of the driving wheel is small, an electromagnetic driver is not required to be added, the electric quantity consumed by driving is less, and the energy consumption of the vehicle is reduced; the permanent magnet synchronous motor is adopted, the size is small, the weight is light, the rotating torque is large, the power is high, when the power of the motor is 450W, the output torque of the wheel can reach 110N/M, and the permanent magnet synchronous motor has the characteristics of small size, electricity saving, large torque, no electricity, traction and flexible operation.

Description

Large-torque miniature electric driving wheel

Technical Field

The utility model belongs to the technical field of the drive wheel, in particular to miniature electric drive wheel of big moment of torsion.

Background

The control driving wheel adopted by the electric driving vehicle in the market at present is mainly a series excitation electric driving wheel, is a multifunctional driving device integrating power, a transmission mechanism, a traveling mechanism and a braking mechanism into a whole, and is suitable for the traveling driving of the electric vehicle powered by a storage battery; in the using process, the driving wheel of the electrically driven vehicle is required to control the parking of the vehicle through a brake, the brake is a spring pressurization electromagnetic safety brake, the vehicle is in a non-working state when the power is off, and the vehicle can be dragged by a large force manually, even the vehicle is not pulled; the driving wheel of the existing electric driving vehicle has larger volume, so that the size of the whole vehicle needs to be increased according to the size of the driving wheel in the design process of the electric driving vehicle, the self weight of the vehicle is increased, the energy consumption of the vehicle is increased, and the effective working and using time is shortened; in order to achieve wheel output torque of 110N/M, a motor adopted by the existing electrically-driven vehicle needs to be selected to drive the vehicle to run by about 1000W, so that the manufacturing cost of the whole vehicle is increased.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model aims to provide a high-torque micro electric driving wheel, which can realize the manual traction of a vehicle in a non-electric state by adding a separation device on the driving wheel; the driving wheel has a small structure, an electromagnetic driver is not required to be added, and parking is realized through self-locking of the gear, so that the energy consumption of the vehicle is reduced; the permanent magnet synchronous motor is adopted, the frequency is high, the electricity is saved, the motor power is 450W, and the output torque of the wheel reaches 110N/M; the electric traction device has the characteristics of small volume, electricity saving, large torsion, no electricity, tractability, simpler manufacture and more flexible operation.

In order to achieve the above purpose, the technical solution of the present invention is realized as follows:

the utility model provides a miniature electric drive wheel of big moment of torsion, which comprises an outer casing, the fixed left end lid that sets up on the shell body, open the recess on the left end lid, be equipped with left wheel locator in the recess, the left end lid passes through left wheel locator and links to each other with the transmission connecting axle left end, the transmission connecting axle links to each other with the wheel hub of wheel, the right-hand member right wheel locator of transmission connecting axle links to each other, the transmission connecting axle right-hand member passes through the spline transmission shaft and links to each other with the left end of turbine worm, the spline transmission shaft sets up in turbine worm to link up turbine worm, the right-hand member and the right-hand member lid fixed connection of.

Preferably, the power device is a permanent magnet motor, the worm gear and the permanent magnet motor are meshed through a gear, the spline transmission shaft is sleeved in the shaft sleeve, the shaft sleeve is connected with the worm gear in a clamping mode, when the permanent magnet motor rotates, the worm gear drives the spline transmission shaft to rotate through meshing force between the gear and the gear, the spline transmission shaft drives the transmission connecting shaft to rotate, and the transmission connecting shaft drives the wheel to rotate.

Preferably, the unfolding spiral angle of the worm gear is smaller than the contact friction angle of the worm gear, so that the self-locking of the driving wheel can be realized when the driving wheel is not used.

Preferably, the disengaging gear include shift fork, axle sleeve, set up the spline groove at the transmission connecting axle right-hand member, set up the spline at spline transmission shaft left end, spline block in the spline groove, realize linking to each other of transmission connecting axle and spline transmission axle, spline transmission shaft's right-hand member links to each other with the shift fork, through the opening and shutting control transmission connecting axle of shift fork and being connected of spline transmission axle.

Preferably, the length of the spline at the left end of the spline transmission shaft is equal to the depth of the spline groove at the right end of the transmission connecting shaft.

Preferably, when the shifting fork is used, the distance for pulling out the spline transmission shaft is not less than the length of the spline at the left end of the spline transmission shaft.

Preferably, left wheel locator and right wheel locator symmetry set up to set up on same water flat line, pass through the draw-in groove with the transmission connecting axle and be connected, the primary function is to fixing a position the wheel, prevents its horizontal hunting.

Preferably, the left end cover and the right end cover are symmetrically arranged and arranged on the same horizontal line, so that the whole device is positioned, and normal work is guaranteed.

The utility model has the advantages that

Because the large-torque micro electric driving wheel provided by the utility model is additionally provided with the disengaging gear, the vehicle can be manually pulled in a non-electric state; the self-locking parking can be realized through the gear of the worm wheel and the worm, the labor is saved, the structure of the driving wheel is small, an electromagnetic driver is not required to be added, the electric quantity consumed by driving is less, and the energy consumption of the vehicle is reduced; the permanent magnet synchronous motor is adopted, the size is small, the weight is light, the rotating torque is large, the power is high, when the power of the motor is 450W, the output torque of the wheel can reach 110N/M, and the permanent magnet synchronous motor has the characteristics of small size, electricity saving, large torque, no electricity, traction and more flexible operation.

Drawings

Fig. 1 is a model diagram of the present invention.

Fig. 2 is an axial view of the housing structure of the present invention.

Fig. 3 is a schematic view of the left end cap structure of the present invention.

Fig. 4 is a schematic view of the wheel structure of the present invention.

Fig. 5 is a schematic view of the structure of the transmission connecting shaft of the present invention.

Fig. 6 is a schematic view of the spline power transmission shaft of the present invention.

Fig. 7 is a schematic view of a worm gear structure of the present invention.

Fig. 8 is a schematic structural view of the right end cap of the present invention.

In the figure: 1. the automobile wheel hub comprises an outer shell, 2 parts of a left end cover, 3 parts of wheels, 4 parts of a transmission connecting shaft, 5 parts of a spline transmission shaft, 6 parts of a permanent magnet motor, 7 parts of a shifting fork, 8 parts of a worm gear and a worm, and 9 parts of a right end cover.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1-8, a high-torque micro electric driving wheel comprises an outer shell 1, a left end cover 2 fixedly arranged on the outer shell 1, a groove is formed in one side, close to a wheel, of the left end cover 2, a left wheel positioner is arranged in the groove, the left end cover 2 is connected with the left end of a transmission connecting shaft 4 through the left wheel positioner, the transmission connecting shaft 4 is connected with a wheel hub of the wheel 3, when the transmission connecting shaft 4 rotates, the wheel 3 is driven to rotate, the right end of the transmission connecting shaft 4 is connected with the left end of a worm gear 8 through a spline transmission shaft 5, the spline transmission shaft 5 is arranged in the worm gear 8 and penetrates through the worm gear 8, the right end of the spline transmission shaft 5 is fixedly connected with a right end cover 9, and the worm gear 8 is respectively connected.

The power device is a permanent magnet motor 6, a worm gear 8 is meshed with the permanent magnet motor 6 through a gear, when a power supply drives the permanent magnet motor 6 to rotate, the worm gear 8 drives a spline transmission shaft 5 to rotate through the meshing force between the gear and the gear, the spline transmission shaft 5 drives a transmission connecting shaft 4 to rotate, and the transmission connecting shaft 4 drives a wheel 3 to rotate, so that the driving wheel moves; when the unfolding helical angle of the worm is smaller than the contact friction angle of the worm gear and the worm, and the driving wheel does not need to move, the driving wheel is subjected to reverse force due to the meshing of the gears, so that the self-locking of the driving wheel is realized;

the disengaging device comprises a shifting fork 7, a shaft sleeve, a spline groove arranged at the right end of the transmission connecting shaft 4 and a spline arranged at the left end of the spline transmission shaft 5, the spline is clamped in the spline groove to realize the connection of the transmission connecting shaft 4 and the spline transmission shaft 5, the right end of the spline transmission shaft 5 is connected with the shifting fork 7, the spline transmission shaft 5 is sleeved in the shaft sleeve, the opening and closing of the shifting fork 7 are used for controlling the connection of the transmission connecting shaft 5 and the spline transmission shaft 5, and then the connection and the disengagement of the control wheel 3 and the driving device are realized.

A large-torque micro electric driving wheel is characterized in that when the driving wheel needs to work, a shifting fork 7 is pressed in manually, a spline is inserted into a spline groove, a transmission connecting shaft 4 is communicated with a spline transmission shaft 5, the driving wheel is in a state that all parts are communicated, a storage battery is connected, a switch is turned on, a permanent magnet motor 6 starts to rotate to drive a gear arranged on the permanent magnet motor 6 to rotate, a worm gear 8 is driven to rotate through meshing force between the gear and the gear, the worm gear 8 drives the spline transmission shaft 5 to rotate, the spline transmission shaft 5 drives the transmission connecting shaft 4 to rotate, and the transmission connecting shaft 4 drives a wheel 3 to rotate, so that vehicle movement is; when the driving wheel finishes working, the power supply is turned off, the permanent magnet motor 6 stops rotating, the expansion spiral angle of the worm is smaller than the contact friction angle of the worm gear and the worm, and when the driving wheel does not need to move, the driving wheel is subjected to reverse force due to the meshing of gears, so that the self-locking of the driving wheel is realized;

when the driving wheel finishes working and the vehicle needs to be moved manually, the shifting fork 7 is pulled out by a worker, the spline transmission shaft 5 moves along the direction of the shifting fork 7 due to the fact that the shifting fork 7 is applied with an outward force, the spline is pulled out of the spline groove, the transmission connecting shaft 4 is disconnected from the spline transmission shaft 5, and at the moment, the worker only needs to use a small force to realize the manual movement of the vehicle due to the fact that the clamping force of the spline in the spline groove is lost.

The length of the spline at the left end of the spline transmission shaft 5 is equal to the depth of the spline groove at the right end of the transmission connecting shaft 4.

When the shifting fork 7 is used, the distance for pulling out the spline transmission shaft 5 is greater than the length of the spline at the left end of the spline transmission shaft 5.

The left wheel positioner and the right wheel positioner are symmetrically arranged and arranged on the same horizontal line and are connected with the transmission connecting shaft 4 through clamping grooves, and the left wheel positioner and the right wheel positioner are mainly used for positioning the wheels 3 and preventing the wheels from swinging left and right.

The left end cover 2 and the right end cover 9 are used for fixing parts such as a transmission connecting shaft 4, a spline transmission shaft 5, a shifting fork 7, a worm gear 8 and the like on the outer shell 1.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a miniature electric drive wheel of big moment of torsion, includes shell body (1), fixed left end lid (2) of setting on shell body (1), it has the recess to open on left end lid (2), is equipped with left wheel locator in the recess, and left end lid (2) link to each other with transmission connecting axle (4) left end through left wheel locator, and transmission connecting axle (4) link to each other with the wheel hub of wheel (3), and the right-hand member right side wheel locator of transmission connecting axle (4) links to each other, its characterized in that: the right end of the transmission connecting shaft (4) is connected with the left end of the worm gear (8) through a spline transmission shaft (5), the spline transmission shaft (5) is arranged in the worm gear (8) and penetrates through the worm gear (8), the right end of the spline transmission shaft (5) is fixedly connected with a right end cover (9), and the worm gear (8) is respectively connected with a power device and a disengaging device.

2. A high torque micro electric drive wheel as claimed in claim 1, wherein: the power device is permanent magnet motor (6), and turbine worm (8) and permanent magnet motor (6) pass through the gear and mesh mutually, and spline transmission shaft (5) cover is in the axle sleeve, and the axle sleeve is connected with turbine worm (8) block, and when permanent magnet motor (6) rotated, through the engaging force between gear and the gear, turbine worm (8) drive spline transmission shaft (5) and rotate, and spline transmission shaft (5) drive transmission connecting axle (4) and rotate, and transmission connecting axle (4) drive wheel (3) and rotate.

3. A high torque micro electric drive wheel as claimed in claim 2, wherein: the expansion spiral angle of the worm gear and worm (8) is smaller than the contact friction angle of the worm gear and worm, and the self-locking of the driving wheel can be realized when the driving wheel is not used.

4. A high torque micro electric drive wheel as claimed in claim 3, wherein: the disengaging device comprises a shifting fork (7), a shaft sleeve, a spline groove arranged at the right end of the transmission connecting shaft (4), and a spline arranged at the left end of the spline transmission shaft (5), wherein the spline is clamped in the spline groove to realize the connection of the transmission connecting shaft (4) and the spline transmission shaft (5), the right end of the spline transmission shaft (5) is connected with the shifting fork (7), and the opening and closing of the shifting fork (7) are used for controlling the connection of the transmission connecting shaft (4) and the spline transmission shaft (5).

5. A high torque micro electric drive wheel according to claim 3 or 4, wherein: the length of the spline at the left end of the spline transmission shaft (5) is equal to the depth of the spline groove at the right end of the transmission connecting shaft (4).

6. A high torque micro electric drive wheel according to claim 4, wherein: when the shifting fork (7) is used, the distance for pulling out the spline transmission shaft (5) is not less than the length of the spline at the left end of the spline transmission shaft (5).

7. A high torque micro electric drive wheel as claimed in claim 1, wherein: the left wheel positioner and the right wheel positioner are symmetrically arranged and arranged on the same horizontal line and connected with the transmission connecting shaft (4) through the clamping groove, and the left wheel positioner and the right wheel positioner are mainly used for positioning the wheels (3) and preventing the wheels from swinging left and right.

8. A high torque micro electric drive wheel as claimed in claim 1, wherein: the left end cover (2) and the right end cover (9) are symmetrically arranged and arranged on the same horizontal line, and the whole device is positioned to ensure normal operation.