CN218335481U

CN218335481U - Quick-dismantling shaft motor and lithium-ion electric bicycle thereof

Info

Publication number: CN218335481U
Application number: CN202222287991.9U
Authority: CN
Inventors: 黄晓云
Original assignee: Daao Electric Jiangsu Co ltd
Current assignee: Daao Electric Jiangsu Co ltd
Priority date: 2022-08-30
Filing date: 2022-08-30
Publication date: 2023-01-17
Anticipated expiration: 2032-08-30

Abstract

The utility model relates to a quick detach axle motor and lithium electricity bicycle thereof belongs to motor installation technical field, and it includes in-wheel motor, in-wheel motor middle part is provided with quick detach axle core subassembly, in-wheel motor includes wheel hub, wheel hub is inside to be provided with stator module, rotor magnet steel and reduction gears, stator module includes the axis, in-shaft is fixed with stator core, the rotor magnet steel sets up stator core surface, just the rotor magnet steel with the axis sets up to rotate and connects, the inside hollow hole that is provided with of axis, the hollow hole intercommunication centraxonial both ends. This application can realize that wheel hub motor does not have instrument's quick dismantlement and installation from lithium electric bicycle through the setting of quick detach axle center, satisfies the market demand.

Description

Quick-dismantling shaft motor and lithium-ion electric bicycle thereof

The technical field is as follows:

the application relates to the technical field of motor installation, in particular to a quick-release shaft motor and a lithium electric bicycle thereof.

Background art:

at present, lithium electric bicycle with folding function has comparatively extensive usage, and in the trade of driving on behalf of a user, the staff need fold it and put in the trunk of car.

Because the trunk of motorcycle type is less a bit, just need take off lithium electric bicycle's wheel hub this moment, just can put into, the quick detach axle motor on the existing market, the structure is comparatively complicated, and the axle is dismantled not very conveniently, and the output torque is less.

The utility model has the following contents:

in order to solve the problems that an existing quick-release shaft motor is complex in structure and small in output torque, the application provides a quick-release shaft motor and a lithium electric bicycle thereof.

The application provides a pair of quick detach axle motor and lithium electricity bicycle thereof adopts following technical scheme:

in a first aspect, the present application provides a quick release shaft motor, which adopts the following technical scheme:

a quick-release shaft motor comprises a hub motor, wherein a quick-release shaft core assembly is arranged in the middle of the hub motor, the hub motor comprises a hub, a stator assembly, rotor magnetic steel and a speed reducing mechanism are arranged in the hub, the stator assembly comprises a middle shaft, a stator core is fixed on the middle shaft, the rotor magnetic steel is arranged on the surface of the stator core, the rotor magnetic steel is rotatably connected with the middle shaft, a hollow hole is formed in the middle shaft, and the hollow hole is communicated with two ends of the middle shaft;

the quick detach axle core subassembly includes the axle core, the axle core is worn to establish in the hollow hole, the axle core both ends are provided with first retaining member and second retaining member respectively.

Preferably, a sun gear is fixed to one side of the rotor magnetic steel, the sun gear is rotatably sleeved on the middle shaft, the speed reduction mechanism comprises a planet support fixed to the middle shaft, a plurality of planet gears are rotatably connected to the planet support, the planet gears are meshed with the sun gear, an inner gear ring is arranged on one side of the planet support, the inner gear ring is fixed to the inner wall of the hub, and the plurality of planet gears are meshed with the inner gear ring.

By adopting the technical scheme, when the motor works, the conductive winding is electrified, the rotor magnetic steel rotates, the rotor magnetic steel drives the sun gear to rotate, the sun gear drives the planetary gear to rotate, and the planetary gear revolves along the center along the track of the inner gear ring and drives the inner gear ring to rotate, the inner gear ring drives the hub to rotate, and the speed reducing mechanism is arranged to reduce the rotating speed and increase the output torque.

Preferably, the thread groove has been seted up to axle core one end, first retaining member is the nut, nut threaded connection be in on the axle core, the pterygoid lamina of a plurality of equipartitions has in the nut surface.

Through adopting above-mentioned technical scheme, nut locking structure is comparatively simple, and the setting of pterygoid lamina is convenient for operating personnel to use, need not with the help of the instrument, alright easily screw up or unscrew the nut.

Preferably, the second locking piece comprises a pressure pad, a fixing pin and a rocker, the fixing pin is fixed at the end of the shaft core, an inner circular hole is eccentrically formed in the rocker, the fixing pin is movably installed in the inner circular hole, and the pressure pad is movably arranged on one side of the rocker.

Through adopting above-mentioned technical scheme, interior round hole off-centre is seted up on the rocker, and the rocker is round fixed pin pivoted in-process, and the circumference displacement increases gradually, realizes compressing tightly fixed effect.

Preferably, a thread groove is formed in one end of the shaft core, and the fixing pin is in threaded connection with the shaft core.

Through adopting above-mentioned technical scheme, fixed pin threaded connection is on the axle core, on the one hand, can adjust the in-service use length of axle core, and the practicality is stronger, on the other hand, threaded connection's mode convenient to detach.

The second aspect, this application provides a install lithium electric bicycle of above-mentioned quick detach axle motor, adopts following technical scheme

The utility model provides a lithium electric bicycle, install foretell quick detach axle motor in lithium electric bicycle's the forerunner, the in-wheel motor passes through the axis and installs on lithium electric bicycle's the automobile body.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the speed reducing mechanism is integrated in the hub motor, when the motor works, the conductive winding is electrified, the rotor magnetic steel rotates, the rotor magnetic steel drives the sun gear to rotate, the sun gear drives the planetary gear to rotate and revolve along the center along the track of the inner gear ring and drives the inner gear ring to rotate, the inner gear ring drives the hub to rotate, and the speed reducing mechanism is arranged to reduce the rotating speed and increase the output torque;

2. through the setting of quick detach axle core, can realize that wheel hub motor does not have instrument's quick dismantlement and installation from lithium electric bicycle, satisfy the market demand.

Description of the drawings:

fig. 1 is a schematic overall structure diagram of an embodiment of the present application.

Fig. 2 is a schematic diagram of an explosive structure according to an embodiment of the present application.

Fig. 3 is a schematic diagram of an exploded structure from different perspectives according to an embodiment of the present application.

Description of reference numerals: 1. a hub motor; 11. a hub; 12. rotor magnetic steel; 13. a middle shaft; 14. a stator core; 15. a sun gear; 21. a planet carrier; 22. a planetary gear; 23. an inner gear ring; 31. a shaft core; 32. a first locking member; 33. a second locking member; 331. a pressure pad; 332. a fixing pin; 333. a rocker.

The specific implementation mode is as follows:

the present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses a quick-release shaft motor, refer to fig. 1-3, including a hub motor 1, a quick-release shaft core 31 assembly is arranged in the middle of the hub motor 1, the hub motor 1 includes a hub 11, a stator assembly, rotor magnetic steel 12 and a speed reducing mechanism are arranged in the hub 11, the stator assembly includes a middle shaft 13, a stator core 14 is fixed on the middle shaft 13, a conductive winding is wound on the stator core 14, the rotor magnetic steel 12 is arranged on the surface of the stator core 14, the rotor magnetic steel 12 and the middle shaft 13 are set to be rotationally connected, a sun gear 15 is fixed on one side of the rotor magnetic steel 12, the sun gear 15 is rotationally sleeved on the middle shaft 13, the speed reducing mechanism includes a planet support 21 fixed on the middle shaft 13, three planet gears 22 are rotationally connected on the planet support 21, the planet gears 22 are engaged with the sun gear 15, an inner toothed ring 23 is arranged on one side of the planet support 21, the inner toothed ring 23 is fixed on the inner wall of the hub 11, and the planet gears 22 are engaged with the inner toothed ring 23;

when the motor works, the conductive winding is electrified, the rotor magnetic steel 12 rotates, the rotor magnetic steel 12 drives the sun gear 15 to rotate, the sun gear 15 drives the planetary gear 22 to rotate, and revolves along the center along the track of the inner gear ring 23 and drives the inner gear ring 23 to rotate, the inner gear ring 23 drives the hub 11 to rotate, and the arrangement of the speed reducing mechanism can reduce the rotating speed and increase the output torque.

The inside hollow hole that is provided with of axis 13, hollow hole intercommunication axis 13's both ends, quick detach axle core 31 subassembly include axle core 31, and axle core 31 wears to establish in the hollow hole, and axle core 31 both ends are provided with first retaining member 32 and second retaining member 33 respectively.

Referring to fig. 1, the thread groove is seted up respectively at the both ends of axle core 31, first retaining member 32 is the nut, nut threaded connection is on axle core 31, the pterygoid lamina that the nut surface has a plurality of equipartitions, second retaining member 33 includes pressure pad 331, fixed pin 332 and rocker 333, the tip at axle core 31 is fixed to fixed pin 332, the eccentric interior round hole of having seted up on rocker 333, fixed pin 332 movable mounting is downthehole at interior round, the activity of pressure pad 331 sets up in rocker 333 one side, the eccentric the seting up of interior round hole is on rocker 333, rocker 333 is round fixed pin 332 pivoted in-process, the circumference displacement increases gradually, realize compressing tightly fixed effect.

The implementation principle of a quick detach axle motor of the embodiment of this application does:

a middle shaft 13 of the in-wheel motor 1 is erected on a gear of the lithium electric bicycle, then a shaft core 31 on a quick-release shaft core 31 assembly penetrates through a hollow hole of the middle shaft 13, a screw cap is screwed in manually, then a rocker 333 is pressed down, and the rocker 333 compresses a pressure pad 331 on the gear under the eccentric action, so that the purpose of fixing the in-wheel motor 1 is achieved.

The embodiment of the application also discloses a lithium electric bicycle provided with the quick-release shaft motor.

The lithium electric bicycle comprises a bicycle body, wherein a quick-release shaft motor is installed on a front drive of the bicycle body.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a quick detach axle motor which characterized in that: the hub motor (1) is provided with a quick-release shaft core (31) assembly in the middle, the hub motor (1) comprises a hub (11), a stator assembly, rotor magnetic steel (12) and a speed reducing mechanism are arranged in the hub (11), the stator assembly comprises a middle shaft (13), a stator core (14) is fixed on the middle shaft (13), the rotor magnetic steel (12) is arranged on the surface of the stator core (14), the rotor magnetic steel (12) and the middle shaft (13) are in rotating connection, a hollow hole is arranged in the middle shaft (13), and the hollow hole is communicated with two ends of the middle shaft (13);

quick detach axle core (31) subassembly includes axle core (31), wear to establish axle core (31) in the hollow hole, axle core (31) both ends are provided with first retaining member (32) and second retaining member (33) respectively.

2. The quick release shaft motor of claim 1, wherein: the speed reducing mechanism is characterized in that a sun gear (15) is fixed on one side of the rotor magnetic steel (12), the sun gear (15) is rotatably sleeved on the middle shaft (13), the speed reducing mechanism comprises a planet support (21) fixed on the middle shaft (13), a plurality of planet gears (22) are rotatably connected to the planet support (21), the planet gears (22) are meshed with the sun gear (15), an inner gear ring (23) is arranged on one side of the planet support (21), the inner gear ring (23) is fixed on the inner wall of the hub (11), and the planet gears (22) are meshed with the inner gear ring (23).

3. The quick release shaft motor of claim 1, wherein: thread groove has been seted up to axle core (31) one end, first retaining member (32) are the nut, nut threaded connection is in on axle core (31), the pterygoid lamina of a plurality of equipartitions has on the nut surface.

4. The quick release shaft motor of claim 1, wherein: second retaining member (33) are including pressure pad (331), fixed pin (332) and rocker (333), fixed pin (332) are fixed the tip of axle core (31), circle hole in the eccentric seting up in rocker (333), fixed pin (332) movable mounting in circle downthehole, pressure pad (331) activity sets up rocker (333) one side.

5. The quick release shaft motor of claim 4, wherein: a thread groove is formed in one end of the shaft core (31), and the fixing pin (332) is connected to the shaft core (31) in a threaded mode.

6. A lithium electricity bicycle which characterized in that: the quick-release shaft motor as claimed in any one of claims 1-5 is mounted on a front wheel of the lithium electric bicycle, and the hub motor (1) is mounted on a bicycle body of the lithium electric bicycle through a middle shaft (13).