CN214296319U - Magnetic control gear shifting hub - Google Patents

Abstract

A magnetic control gear shifting hub belongs to the technical field of wheel power transmission. The gear box comprises a motor spindle and a hub steel ring, wherein a gear box body is formed in a hub cavity, and a clutch and a gear set are arranged in the gear box body. An electric sucker is arranged on a motor spindle, a magnetic conduction ring and a coil annular groove are arranged on the side wall of one side of the electric sucker adjacent to the pressure plate, and a coil is distributed in the coil annular groove; the left cover of the motor is adjacent to the convex column to form a concave cavity, and the driven friction plate and the driving friction plate are positioned on the convex disc and in the concave cavity. The utility model has the advantages that: the clutch gear shifting mechanism is installed on the motor in the hub, the electric sucker is arranged outside the motor shell, the motor is made to be independent parts which do not interfere with each other, so that heat generated during the power-on working of the electric sucker can not be simultaneously superposed inside the motor, a motor heating source is not additionally added, the motor is protected, and meanwhile, the condition that the electric sucker is not burnt out due to overtemperature caused by the superposition of heat generated during the working of the motor is also protected.

Description

Magnetic control gear shifting hub

Technical Field

A magnetic control gear shifting hub belongs to the technical field of wheel power transmission, and particularly relates to a wheel power transmission device of an electric motorcycle and an electric bicycle.

Background

The existing electric vehicle mostly adopts a direct driving mode of a hub motor, and particularly an electric two-wheel vehicle has the defects of small volume, limited space of a battery compartment and limited battery capacity, so that the volume and the power of the motor cannot be larger. If the electric motor car wants to go at complicated topography such as mountain region, hills, needs bigger power, consumes bigger electric quantity, but the realistic conditions is that required power can not be satisfied for the electric motor car is difficult for being suitable for complicated topography such as mountain region, hills and going, thereby has restricted the application range of electric motor car. In addition, although the transmission is arranged in the hub motor at present, the high-speed direct-drive gear directly drives the wheel by the electromagnetic clutch, and meanwhile, the large electric energy loss (the power consumption loss of the electromagnetic clutch during working) is additionally increased. Meanwhile, the transmission part is rigidly combined with the gear to work when the transmission part reaches a certain rotating speed by means of a ratchet clutch mode through centrifugal force, and the gear is easily damaged by reaction force generated by vehicle weight and manned weight, so that the bicycle can generate impact sound, impact and other adverse conditions during riding; in addition, the electric vehicle realizes gear shifting by clockwise rotation and anticlockwise rotation of the motor, the motor can pause for a certain time during gear shifting, and gear shifting can be completed only by a buffer time, so that the electric vehicle has poor human comfort during gear shifting, slow response and sometimes has a blocking phenomenon when the reverse cart is too fast; furthermore, for example, the inventor of the present application discloses a "gear shifting hub for an electric vehicle" in chinese patent No. 201120043762.1, which is based on a centrifugal force exerted by a thrower, the thrower cannot be made heavy due to the limited size of the hub motor, and the hub motor is operated in a direct-drive mode, so the rotation speed of the motor is not too high, under the condition, the thrower cannot obtain a centrifugal force enough to press the friction plate to drive the clutch to directly drive the wheel to run with load, and if the wheel runs in an overload state, the clutch and the motor are burned.

Disclosure of Invention

The to-be-solved problem of the utility model is exactly to above not enough and provide one kind can increase wheel hub power at double, shift the response faster, the clutch combines reliable and stable, can improve the electric motor car of the comfort level of riding and keep off wheel hub with changing. The technical scheme is as follows:

a magnetic control gear shifting hub comprises a motor spindle and a hub steel ring, wherein a left hub cover and a right hub cover are respectively installed at two ends of the hub steel ring, a motor comprises a rotor and a stator, the left motor cover and the right motor cover are respectively arranged at two ends of the motor, a gearbox body is formed in a hub cavity, a clutch and a gear set are arranged in the gearbox body, a convex column is arranged at one end of a shaft hole of the left motor cover, a driven hub and a driving disc are sleeved on the convex column of the clutch, and a driven friction plate and a driving friction plate are installed on the driven hub; the gear set is characterized in that a gear support frame is arranged on a motor spindle and positioned in a right cover of a wheel hub, a first radial hole and a second radial hole are formed in the gear support frame, and a gear is arranged in the first radial hole; the key technology is that an electric suction cup is also arranged on the motor main shaft adjacent to a driven hub, the driven hub is provided with a pressure plate, one side of the pressure plate is provided with a convex disc, and the other side wall of the pressure plate is provided with a magnetic conduction ring and a magnetic conduction groove; the side wall of one side of the electric sucker adjacent to the pressure plate is provided with a magnetic conduction ring and a coil annular groove, and a coil is distributed in the coil annular groove; the left cover of the motor is adjacent to the convex column to form a concave cavity, and the driven friction plate and the driving friction plate are positioned on the convex disc and in the concave cavity.

A driven friction plate embedded groove is formed in the radial position of the left cover of the hub, and a driving friction plate embedded groove is formed in the outer surface of the convex disc in the radial direction.

The magnetic conduction ring on the pressure plate is provided with a first magnetic conduction ring and a second magnetic conduction ring on the other side of the pressure plate, and the magnetic conduction groove is positioned between the first magnetic conduction ring and the second magnetic conduction ring; the magnetic conduction rings on the electric sucker are provided with a third magnetic conduction ring and a fourth magnetic conduction ring on one side of the electric sucker, and the coil annular groove is positioned between the third magnetic conduction ring and the fourth magnetic conduction ring.

The utility model discloses another structure links firmly first driving disk on driven hub, and first driving disk opposite side is equipped with fifth magnetic ring, and annular skeleton is adorned in electric chuck's coil ring channel, and the coil winding is on annular skeleton, and fifth magnetic ring nestification contacts electric chuck's fourth magnetic ring in the shaft hole of annular skeleton one end in the shaft hole of the annular skeleton other end.

The utility model discloses a structure is again installed the second on motor spindle and is inhaled driving disk and supporting disk, and the second is inhaled the driving disk and is connected with the first driving disk that inhales, installs electric sucking disc on the supporting disk, and annular skeleton is adorned in electric sucking disc, and winding coil is gone up to annular skeleton, and the fixed iron core of one end installation in annular skeleton's shaft hole is inhaled the installation on the second and is moved the iron core and be located annular skeleton's shaft hole.

Compared with the prior art, the utility model discloses the beneficial effect who has is:

1. the utility model discloses installed clutch gearshift on the motor in wheel hub, wherein the electric suction cup sets up in the outside of motor (core) shell, make the motor be independent part, they mutually noninterfere, so the heat that the electric suction cup circular telegram during operation produced can not superpose inside the motor simultaneously, do not additionally increase the motor source that generates heat, thereby the motor has been protected, the condition that the heat stack that the electric suction cup self produced by motor work simultaneously leads to super temperature to burn out has also been protected, be convenient for installation and debugging, reduce the motor equipment degree of difficulty, be convenient for the mass production.

2. The electric sucker has small volume, and because the clutch is not driven to work by pressing the friction plate through self electromagnetic suction force like an electromagnetic clutch, the electric sucker in the structure has the function of an electromagnetic switch and only controls the transverse sliding position of the driven hub, the electric sucker has small power, low heat generation and low energy consumption.

3. When the clutch needs to be combined, the electric sucker is powered off, the driving disc and the driven hub are rotated by the torque force of the motor and are matched with the friction plates to press each friction plate in an extrusion mode of mutual acting force of the driving disc and the driven hub through the sliding of a plurality of inclined planes, the extrusion force is in direct proportion to the angle of the inclined planes, the torque force of the motor and the reaction force of wheels, and enough extrusion force can be set to completely press each friction plate, the overload slipping condition can not occur after the clutch is stably combined, the process is completed instantly without time delay, the rotating direction of the motor does not need to be changed, the gear shifting is forward, the gear shifting time of reverse starting is saved, the power of the motor is immediately and directly output to the hub ring, so it shifts response speed faster and keep off the position clear, makes the motor can be fast, accurate accomplish the noninductive and shift, can not have because the speed difference shifts and produce and pause and frustrate and feel, has improved the comfort level of riding.

4. When the clutch is required to be separated, the motor rotates without changing the direction, the power is cut off instantly, the electric sucker is electrified to suck the driven hub, after the driven hub is sucked, each friction plate is separated and cannot be pressed tightly through the inclined plane, the motor power can exert the maximum efficiency when being output through the gear set at the moment, and the problems of incomplete separation, slow separation and energy loss caused by separation delay can be avoided.

5. Therefore, the utility model discloses inside gear shifting mechanism of motor and all spare parts move to the outside end cover department of motor, make the assembly at the wheel hub intracavity more easily like this, and it is also more convenient to maintain.

6. To sum up the utility model discloses can increase motor power at double, no matter be the separation and reunion of high-speed gear or low-speed gear, can not appear the pause and contuse, send out the circumstances that influences comfort of riding such as dashing, making a sound, and combine reliably, stably, can not appear bad condition such as clutch skids, improved motor life, reduced motor fault rate and manufacturing cost.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a clutch assembly according to the present invention;

FIG. 3 is a schematic view of a partially enlarged structure of the clutch assembly of the present invention;

fig. 4 is a schematic perspective view of the driven hub of the present invention;

fig. 5 is a schematic perspective view of the driven hub of the present invention in another direction;

fig. 6 is a schematic structural view of the driven friction plate of the present invention;

fig. 7 is a schematic structural view of the active friction plate of the present invention;

FIG. 8 is a schematic view of the three-dimensional structure of the driving plate of the present invention;

FIG. 9 is a schematic view of the driving plate of the present invention showing a three-dimensional structure in another direction;

fig. 10 is a schematic view of the three-dimensional structure of the electric suction cup of the present invention;

fig. 11 is a schematic view of another direction of the electric suction cup of the present invention;

fig. 12 is a schematic perspective view of the gear train speed reduction mechanism of the present invention;

FIG. 13 is another schematic structural view of the present invention;

FIG. 14 is an enlarged partial schematic view of another clutch assembly according to the present invention;

fig. 15 is a schematic perspective view of another electric chuck of the present invention;

fig. 16 is a schematic view of another direction of the electric suction cup of the present invention;

fig. 17 is a perspective view of another driven hub of the present invention;

fig. 18 is a schematic perspective view of another driven hub of the present invention;

FIG. 19 is a perspective view of another driving plate of the present invention;

FIG. 20 is a schematic view of another driving plate of the present invention showing a three-dimensional structure in another direction;

fig. 21 is a schematic view of another embodiment of the present invention;

FIG. 22 is a schematic view of a further clutch assembly according to the present invention in a partially enlarged configuration;

FIG. 23 is a schematic view of a three-dimensional structure of another electric chuck of the present invention;

Detailed Description

Example 1:

referring to fig. 1 to 12, a magnetic control gear shifting hub comprises amotor spindle 22 and a hub steel ring 1, a hubleft cover 3 and a hubright cover 26 are respectively mounted at two ends of the hub steel ring 1, the motor is arranged on the motormain shaft 22 and comprises arotor 2 and a stator 14, a motor winding 12 is distributed on the stator 14, amagnetic steel sheet 13 is arranged between arotor 2 and a stator 14, a motorleft cover 4 and a motorright cover 15 are respectively arranged at two ends of a motor, the motorleft cover 4 and the motorright cover 15 are fixedly connected with therotor 2, amotor wire 21 is led out from a shaft hole at the right end of amotor spindle 22, a speed changing box body is formed in a hub cavity, a clutch and a gear set are arranged in the speed changing box body, a convex column 4.2 is arranged at one end of the shaft hole of the motorleft cover 4, a drivenhub 7 and adriving disc 8 are sleeved on the convex column 4.2 by the clutch, a plurality of drivenfriction plates 5 and drivingfriction plates 6 are arranged on the drivenhub 7 in an interdigital type interval mode, and a certain gap is formed between each friction plate; the gear set is characterized in that agear support frame 19 is arranged on amotor spindle 22 in a hubright cover 26 through a one-way bearing 20, thegear support frame 19 is provided with a first radial hole 19.1 and a second radial hole 19.2 which are symmetrically arranged, aspline shaft 18 is arranged in the first radial hole 19.1, asecond gear 16 is arranged at the left end of thespline shaft 18, athird gear 17 is arranged at the right end of thespline shaft 18, afirst gear 24 is fixedly arranged on a motorright cover 15, afourth gear 23 is fixedly connected to the hubright cover 26, thefirst gear 24 is meshed with thesecond gear 16, and thefourth gear 23 is meshed with thethird gear 17; when the motormain shaft 22 is fixed, current is input to the motor winding 12 from themotor wire 21, a rotating magnetic field is generated in the motor at the moment, therotor 2 starts to rotate clockwise, and because thefirst gear 24 is fixedly connected with the motorright cover 15, and the motorright cover 15 is fixedly connected with therotor 2, the power of the motor is output by thefirst gear 24; the key technology is that anelectric suction cup 10 is also arranged on amotor spindle 22 adjacent to a drivenhub 7, the drivenhub 7 is provided with a pressure plate 7.1, one side of the pressure plate is provided with a convex disc 7.2, and the other side wall of the pressure plate is provided with a magnetic conduction ring and a magnetic conduction groove 7.1.2; the side wall of one side of theelectric sucker 10 adjacent to the pressure plate 7.1 is provided with a magnetic conductive ring and a coil annular groove 10.3, acoil 11 is distributed in the coil annular groove 10.3, and apower wire 9 of theelectric sucker 10 is led out from a shaft hole at the left end of amotor spindle 22; a concave cavity 4.1 is formed at the position of theleft motor cover 4 adjacent to the convex column 4.2, and the drivenfriction plate 5 and the drivingfriction plate 6 are positioned on the convex disc 7.2 and in the concave cavity 4.1.

A plurality of driven friction plate embedded grooves 3.1 are arranged at the radial position of theleft cover 3 of the hub, and a plurality of driving friction plate embedded grooves 7.2.1 are arranged on the outer surface of a convex disc 7.2 of the driven hub along the radial direction.

The outer circle of the drivenfriction plate 5 is provided with a first lug 5.1, the inner circle of the drivingfriction plate 6 is provided with a second lug 6.1, when the friction plate is sleeved on the drivenhub 7, the first lug 5.1 is embedded into the driven friction plate embedded groove 3.1, and the second lug 6.1 is embedded into the driving friction plate embedded groove 7.2.1 of the convex disc 7.2.

The magnetic conductive ring on the pressure plate 7.1 is provided with a first magnetic conductive ring 7.1.1 and a second magnetic conductive ring 7.1.3 on the other side of the pressure plate, and the magnetic conductive groove 7.1.2 is positioned between the first magnetic conductive ring 7.1.1 and the second magnetic conductive ring 7.1.3; the magnetic conductive rings on theelectric sucker 10 are a third magnetic conductive ring 10.2 and a fourth magnetic conductive ring 10.4 arranged on one side of theelectric sucker 10, and the coil annular groove 10.3 is positioned between the third magnetic conductive ring 10.2 and the fourth magnetic conductive ring 10.4.

A plurality of inclined grooves 7.3 are formed in the inner wall of the shaft hole on the other side, opposite to the convex disc 7.2, of the pressure plate 7.1, and first inclined planes 7.4 are arranged at the bottoms of the inclined grooves 7.3; the circumference outer wall ofinitiative dish 8 is equipped with a plurality of boss 8.1, and the side of boss 8.1 is equipped with second inclined plane 8.2. During installation, the boss 8.1 is embedded into the chute 7.3, the second inclined plane 8.2 is attached to the first inclined plane 7.4, and the first inclined plane 7.4 can slide on the second inclined plane 8.2, so that the drivenhub 7 can transversely slide on the convex column 4.2 relative to thedriving disc 8.

The magnetic conductive rings on the pressure plate 7.1 are correspondingly installed with the magnetic conductive rings on theelectric suction cup 10, and the corresponding relationship is that the third magnetic conductive ring 10.2 corresponds to the second magnetic conductive ring 7.1.3, the fourth magnetic conductive ring 10.4 corresponds to the first magnetic conductive ring 7.1.1, and the coil annular groove 10.3 corresponds to the magnetic conductive groove 7.1.2, which together form an electromagnetic force attracting magnetic circuit.

And acounterweight 25 is fixedly arranged in the second radial hole 19.2 of the gear support frame. When the direct-drive high speed is realized, thegear support frame 19 and the motor synchronously rotate, and the balance block ensures that the motor stably rotates.

In the figure, 26.1 is a brake hub, and 10.1 is a central positioning hole of theelectric suction cup 10.

The working principle of the embodiment is as follows:

when direct drive is needed (2-gear), firstly, the controller controls the switch to cut off the coil 11 (the switch can be a micro relay or an electronic switch), each magnetic conductive ring on theelectric sucker 10 loses magnetic force, the drivenhub 7 is in a free state and is not controlled by the magnetic force of theelectric sucker 10, then the motor rotates clockwise through the controller, and finally the clutch is engaged to work. The clutch working process is that the drivenhub 7 rotates certain angle to the anticlockwise direction by theleft cover 4 of the motor relatively and receives the right thrust of thedriving disc 8 to make the drivenhub 7 transversely slide right, so that the plurality of drivenfriction plates 5 and the drivingfriction plates 6 are pressed, and the motor power is enabled to pass through the clutch 1: 1 is directly output, simultaneously, gears at all levels of the gear set are self-locked and stop working, and the one-way bearing 20 and thegear support frame 19 rotate synchronously with the motor. The power output path is as follows: therotor 2 → theleft cover 4 of the motor → the convex column 4.2 → thedriving disk 8 → the convex platform 8.1 → the second inclined plane 8.2 → the first inclined plane 7.4 → the drivenhub 7 → the driving friction plate embedded groove 7.2.1 → the drivingfriction plate 6 → the drivenfriction plate 5 → the driven friction plate embedded groove 3.1 → theleft cover 3 of the hub → the wheel rim 1 for direct output.

When the power gear needs to be lifted for driving (1 gear), firstly, the controller controls the switch to enable thecoil 11 to be electrified, so that each magnetic conductive ring on theelectric sucker 10 obtains magnetic force to attract each other, at the moment, the drivenhub 7 is controlled by the magnetic force of theelectric sucker 10 and transversely slides leftwards, and because the drivingfriction plate 6 is embedded into the driving friction plate embedded groove 7.2.1 of the convex disc 7.2, the drivenhub 7 moves to drive the drivingfriction plate 6 to move, so that the drivingfriction plate 6 is separated from the drivenfriction plate 5, then, the motor is enabled to rotate clockwise through the controller, and finally, the gear set works. The working process of the device is that themotor spindle 22 is fixed on the frame and is stationary, so the one-way bearing 20 and thegear support frame 19 are stationary, and the motor power is output in a speed reduction way through therotor 2 → the motorright cover 15 → thefirst gear 24 → thesecond gear 16 → thespline shaft 18 → thethird gear 17 → thefourth gear 23 → the hub right cover 26 → the hub steel ring 1.

In the gear shifting process, the controller controls thecoil 11 of theelectric sucker 10 to be electrified and powered off, and the gear shifting can be completed. Specifically, when the 1-gear is needed to be switched into the 2-gear, the motor core is powered off at the moment or the electromagnetic brake moment, the motor core loses power temporarily, then thecoil 11 is powered off, and finally the motor core is powered on to enable the clutch working wheel to run; when the 2-gear is needed to be switched into the 1-gear, the motor core is powered off instantly or the electromagnetic brake instantly to lose power temporarily, then thecoil 11 is powered on, and finally the motor core is powered on to drive the gear set to work, and the wheel rotates.

Example 2:

referring to fig. 13 to 20, the same points as those of embodiment 1 will not be described again, and the difference lies in the motor clutch.

Afirst suction disc 27 is fixedly connected to one side, close to a pressure plate, of a drivenhub 7, a fifth magnetic conduction ring 27.1 is arranged on the other side of thefirst suction disc 27, anannular framework 28 is sleeved in a coil annular groove 10.3 of anelectric suction disc 10, acoil 11 is wound on theannular framework 28, the fifth magnetic conduction ring 27.1 is nested in a shaft hole in one end of theannular framework 28, a fourth magnetic conduction ring 10.4 of theelectric suction disc 10 is contacted in the shaft hole in the other end of theannular framework 28, a certain gap is reserved between the fourth magnetic conduction ring 10.4 and the fifth magnetic conduction ring 27.1, the fifth magnetic conduction ring 27.1 is attracted by the fourth magnetic conduction ring 10.4 after theelectric suction disc 10 is electrified, thefirst suction disc 27 is driven together with the drivenhub 7 to move, and friction plates on a clutch are separated.

A third inclined surface 7.5 is arranged at the bottom of the inclined groove 7.3 of the drivenhub 7 and at the position symmetrical to the first inclined surface 7.4, and a plurality of cushion blocks 7.6 are arranged on the other side wall of the pressure plate 7.1. The spacers 7.6 thicken the pressure plate 7.1 so that a threaded hole of sufficient depth can be made in the pressure plate 7.1 and thefirst suction disk 27 can be fixed by means of screws more reliably.

And a fourth inclined surface 8.3 is arranged at the position where the side surface of the boss 8.1 of thedriving disc 8 is symmetrical to the second inclined surface 8.2. In 8.1 embedding chute 7.3 of boss during the installation, second inclined plane 8.2 and the laminating of first inclined plane 7.4, fourth inclined plane 8.3 and the laminating of third inclined plane 7.5, first inclined plane 7.4 can slide on second inclined plane 8.2, and third inclined plane 7.5 can slide on fourth inclined plane 8.3.

The working principle of the embodiment is as follows:

the working principle of the motor in the driving and gear shifting process is the same as that of embodiment 1, and the details are not repeated herein. The difference lies in that the accelerator is loosened to rotate the motor to perform power-off sliding (sliding on a flat road or sliding on a downhill) and the outer wheel can drive the motor rotor 2 to rotate clockwise, specifically, the electric suction cup 10 is powered off firstly, then the first suction disc 27 and the driven hub 7 are released, and the outer wheel rotating clockwise at the moment can pass through the hub steel ring 1 → the hub left cover 3 → the driven friction disc embedded groove 3.1 → the driven friction disc 5 → the driving friction disc 6 → the driving friction disc embedded groove 7.2.1 → the driven hub 7 → the third inclined plane 7.5 → the fourth inclined plane 8.3 → the boss 8.1 → the driving disc 8 → the convex column 4.2 → the motor left cover 4 → the rotor 2, so that the sliding power is transmitted to the magnetic steel sheet 13 in the rotor 2, the magnetic line of the magnetic steel sheet 13 rotates to cut the motor winding 12, so that the motor generates the electric energy and finally the electric energy is recovered to perform reverse charging for the battery through the controller, thereby achieving the energy-saving effect of sliding charging; when the vehicle needs to be backed after parking, the electric suction cup 10 is firstly electrified to separate each friction plate on the clutch, and then the vehicle can be pushed to back.

Example 3:

referring to fig. 21 to 23, the same points as those ofembodiments 1 and 2 will not be described again, and the difference lies in the electromagnetic shift position. Specifically, a second suckingdisc 29 and a supportingdisc 30 are installed in a hub cavity where a hubleft cover 3 is located on amotor spindle 22, the second suckingdisc 29 is connected with a first suckingdisc 27 through a bearing, the second suckingdisc 29 can transversely slide on themotor spindle 22, a shaft hole 30.1 is formed in the center of the supportingdisc 30, a plurality ofelectric suction cups 10 are installed on the supportingdisc 30,annular frameworks 28 are installed in theelectric suction cups 10 in a sleeved mode, coils 11 are wound on theannular frameworks 28, fixed iron cores 10.5 are installed at one ends in the shaft holes of theannular frameworks 28, a plurality of movable iron cores 29.1 are installed on the second suckingdisc 29 and located in the shaft holes of theannular frameworks 28, and a certain gap is formed between the movable iron cores 29.1 and the fixed iron cores 10.5.

The working principle of the embodiment is as follows:

the working principle of the motor in the driving, gear shifting and reverse processes is the same as that of the embodiment 1 and theembodiment 2, and the details are not repeated. The difference lies in that a plurality ofelectric suction cups 10 are uniformly arranged at the circumferential position of a supportingdisk 30, after theelectric suction cups 10 are electrified, the movable iron core 29.1 and the fixed iron core 10.5 are attracted, so that thesecond suction disk 29 can be linked with thefirst suction disk 27 and the drivenhub 7 to move leftwards, and each friction plate on the clutch is separated, thereby achieving the purpose of gear shifting.

Although the embodiments of the present invention have been described with reference to the accompanying drawings, those skilled in the art will recognize that various changes and modifications can be made, and names of various components and parts can be modified, within the scope of the appended claims, for example: the inclined planes arranged on the driving disk and the driven hub are changed into threads and inclined grooves or the inclined planes of the driving disk and the driven hub are reversely reversed and arranged to compress the friction plate through a relative displacement mode to enable the clutch to work, the supporting disk comprises but not limited to a round shape which can be in other special shapes and has the functions of positioning and fixing an electric sucker, or a high-speed gear is arranged to be electrified by the electric sucker, a low-speed gear is arranged to be powered off by the electric sucker, the working principle and the structure are reversely designed, such as suction to be changed into push, push to be suction and the like, and then or the parts or part characteristics in the structure are changed back and forth, left and right, up and down, and inside and outside, and the gear reduction mode for changing the gear set reduction mechanism into other forms, such as but not limited to the use of planetary gears, gear rings and the like, can be understood to be within the scope and intention of the utility model.

Claims (10)

1. A magnetic control gear shifting hub comprises a motor spindle (22) and a hub steel ring (1), wherein a hub left cover (3) and a hub right cover (26) are respectively installed at two ends of the hub steel ring (1), a motor comprises a rotor (2) and a stator (14), a motor left cover (4) and a motor right cover (15) are respectively installed at two ends of the motor, a speed changing box body is formed in a hub cavity, a clutch and a gear set are arranged in the speed changing box body, a convex column (4.2) is arranged at one end of a shaft hole of the motor left cover (4), a driven hub (7) and a driving disc (8) are sleeved on the convex column (4.2), and a driven friction plate (5) and a driving friction plate (6) are installed on the driven hub (7); the gear set is characterized in that a gear support frame (19) is arranged in a hub right cover (26) on a motor spindle (22), a first radial hole (19.1) and a second radial hole (19.2) are formed in the gear support frame (19), and a gear is arranged in the first radial hole (19.1); the motor is characterized in that an electric sucker (10) is further mounted on the motor spindle (22) adjacent to the driven hub (7), the driven hub (7) is provided with a pressing plate (7.1), a convex disc (7.2) is arranged on one side of the pressing plate, and a magnetic conduction ring and a magnetic conduction groove (7.1.2) are arranged on the other side wall of the pressing plate; the side wall of one side of the electric sucker (10) adjacent to the pressure plate (7.1) is provided with a magnetic conduction ring and a coil annular groove (10.3), and a coil (11) is distributed in the coil annular groove (10.3); a concave cavity (4.1) is formed at the part of the left motor cover (4) adjacent to the convex column (4.2), and the driven friction plate (5) and the driving friction plate (6) are positioned on the convex disc (7.2) and in the concave cavity (4.1).

2. The magnetic control gear shifting hub according to claim 1, characterized in that a driven friction plate embedded groove (3.1) is arranged at the radial position of the left hub cover (3), and a driving friction plate embedded groove (7.2.1) is arranged on the outer surface of the convex disc (7.2) along the radial direction.

3. The magnetically controlled gear shifting hub according to claim 1, wherein the driven friction plate (5) is provided with a first protrusion (5.1) on the outer circumference and the driving friction plate (6) is provided with a second protrusion (6.1) on the inner circumference.

4. The magnetic control gear shifting hub according to claim 1, wherein the magnetic rings on the pressure plate (7.1) are provided with a first magnetic ring (7.1.1) and a second magnetic ring (7.1.3) on the other side of the pressure plate, and the magnetic groove (7.1.2) is located between the first magnetic ring (7.1.1) and the second magnetic ring (7.1.3); the magnetic conductive rings on the electric sucker (10) are a third magnetic conductive ring (10.2) and a fourth magnetic conductive ring (10.4) arranged on one side of the electric sucker (10), and the coil annular groove (10.3) is positioned between the third magnetic conductive ring (10.2) and the fourth magnetic conductive ring (10.4).

5. The magnetic control gear shifting hub according to claim 1, wherein the inner wall of the shaft hole at the other side of the pressure plate (7.1) is provided with a chute (7.3), and the bottom of the chute (7.3) is provided with a first inclined surface (7.4); the circumference outer wall of initiative dish (8) is equipped with boss (8.1), and the side of boss (8.1) is equipped with second inclined plane (8.2).

6. The magnetically controlled gear shifting hub according to claim 1, characterized in that a counter-weight (25) is mounted in the second radial bore (19.2).

7. The magnetic control gear shifting hub according to claim 1, wherein the driven hub (7) is fixedly connected with a first suction disc (27), a fifth magnetic conductive ring (27.1) is arranged on the other side of the first suction disc (27), an annular framework (28) is sleeved in a coil annular groove (10.3) of the electric suction disc (10), the coil (11) is wound on the annular framework (28), the fifth magnetic conductive ring (27.1) is nested in an axial hole at one end of the annular framework (28), and a fourth magnetic conductive ring (10.4) of the electric suction disc (10) is contacted in an axial hole at the other end of the annular framework (28).

8. The magnetic control gear shifting hub according to claim 5, wherein a third inclined surface (7.5) is arranged at the bottom of the inclined groove (7.3) and at a position symmetrical to the first inclined surface (7.4), and a cushion block (7.6) is arranged on the other side wall of the pressure plate (7.1).

9. The magnetic control gear shifting hub according to claim 5, wherein a fourth inclined surface (8.3) is provided at a position symmetrical to the second inclined surface (8.2) on the side surface of the boss (8.1).

10. The magnetic control gear shifting hub according to claim 7, wherein a second sucking disk (29) and a supporting disk (30) are installed on the motor spindle (22), the second sucking disk (29) is connected with the first sucking disk (27), an electric sucking disk (10) is installed on the supporting disk (30), an annular framework (28) is installed in the electric sucking disk (10), a coil (11) is wound on the annular framework (28), a fixed iron core (10.5) is installed at one end in a shaft hole of the annular framework (28), and a movable iron core (29.1) is installed on the second sucking disk (29) and is located in the shaft hole of the annular framework (28).

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