CN210225160U - Moving mechanism based on hub motor and electric wheelchair thereof - Google Patents
Moving mechanism based on hub motor and electric wheelchair thereof Download PDFInfo
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- CN210225160U CN210225160U CN201921098890.9U CN201921098890U CN210225160U CN 210225160 U CN210225160 U CN 210225160U CN 201921098890 U CN201921098890 U CN 201921098890U CN 210225160 U CN210225160 U CN 210225160U
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Abstract
The utility model relates to a moving mechanism based on a wheel hub motor and an electric wheelchair thereof, which comprises the wheel hub motor and a power-off brake; the hub motor comprises a rotor hub and a stator shaft, the rotor hub comprises a hub shell and a side cover, a shaft hole is formed in the center of the side cover, and the outer side wall of the side cover extends outwards along the shaft hole to form a brake shaft; the inner end of the stator shaft is in running fit with the inner wall of the wheel shell, and the outer end of the stator shaft sequentially penetrates out of the side cover through the brake shaft and is fixedly arranged; the power-off brake comprises a base body and a connecting shaft sleeve suitable for braking, wherein the base body is fixedly arranged, and the connecting shaft sleeve is fixedly connected with the brake shaft so that the power-off brake brakes the brake shaft. The moving mechanism has higher starting response speed based on the advantages of the hub motor, and is matched with a power-off brake to brake and brake in time under the power-off condition, so that the safety is higher; the mechanism structure is more optimized, the parts of the mechanism are reduced, and the cost is reduced.
Description
Technical Field
The utility model relates to a moving mechanism and electronic wheelchair based on in-wheel motor.
Background
The mounting structure of a hub on the existing electric wheelchair is shown in fig. 1, and comprises a wheelchair frame, wherein a speed reduction motor 10 is arranged on the wheelchair frame, a motor shell is fixedly connected with the wheelchair frame, two ends of a motor rotating shaft 20 respectively extend out, one end of the motor rotating shaft 20 is connected with a wheel 40 and used for driving the wheel 40 to rotate, the other end of the motor rotating shaft 20 is connected with a power-off brake 30, a seat body of the power-off brake 30 is fixedly connected with the motor shell, and a connecting shaft sleeve in the power-off brake 30 is fixedly connected with the other end of; when the brake is needed, the armature inside the power-off brake 30 rubs with the brake disc to limit the rotation of the brake disc under the condition that the power-off brake 30 is powered off, and the connecting shaft sleeve is connected with the brake disc, so the motor rotating shaft 20 is driven to brake and stop rotating.
The structure of the prior electric wheelchair has the problems that; the motor adopts a speed reducing motor 10 with a speed reducing gear mechanism, so that the structure is complex, the number of parts is large, the cost is high, and the electric transmission efficiency of the wheels in the whole electric wheelchair is not high.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: the defects of the prior art are overcome, the moving mechanism based on the hub motor and the electric wheelchair are provided, and the problems that the structure of a hub transmission machine in the existing electric wheelchair is complex, the number of parts is large, and the cost is high are solved.
The utility model provides a technical scheme that its technical problem adopted is: a moving mechanism based on an in-wheel motor comprises the in-wheel motor and a power-off brake;
the hub motor comprises a rotor hub and a stator shaft, the rotor hub comprises a hub shell and a side cover, a shaft hole is formed in the center of the side cover, and the outer side wall of the side cover extends outwards along the shaft hole to form a brake shaft; the inner end of the stator shaft is in running fit with the inner wall of the wheel shell, and the outer end of the stator shaft sequentially penetrates out of the side cover through the brake shaft and is fixedly arranged;
the power-off brake comprises a base body and a connecting shaft sleeve suitable for braking, wherein the base body is fixedly arranged, and the connecting shaft sleeve is fixedly connected with the brake shaft so that the power-off brake brakes the brake shaft.
Further, still include the mounting panel, outage stopper's pedestal and mounting panel fixed connection, stator shaft outer end and mounting panel fixed connection.
Further, the outer end of the stator shaft forms a threaded connection section for connection with a mounting plate.
Furthermore, an installation step for installing the connecting shaft sleeve is formed on the brake shaft.
In another aspect, an electric wheelchair is provided, which comprises a frame, wherein the moving mechanism based on the hub motor is arranged on the frame.
The utility model has the advantages that:
the utility model provides a moving mechanism based on an in-wheel motor, which has the advantages of higher starting response speed and high transmission efficiency based on the advantages of the in-wheel motor, and is matched with a power-off brake to brake and brake the moving mechanism in time under the condition of power-off, so that the safety is higher; the mechanism structure is more optimized, the parts of the mechanism are reduced, and the cost is reduced.
The utility model provides an electric wheelchair uses foretell moving mechanism, can electric wheelchair possess better starting response speed, has outage automatic brake function simultaneously, and electric wheelchair's security is promoted greatly.
Drawings
The present invention will be further explained with reference to the accompanying drawings.
FIG. 1 is a wheel drive mechanism on a conventional electric wheelchair;
10, a speed reducing motor, 20, a motor rotating shaft, 30, a power-off brake, 40 and wheels;
FIG. 2 is a schematic view of the in-wheel motor;
FIG. 3 is a schematic diagram of a moving mechanism based on an in-wheel motor;
the brake comprises a wheel shell 1, a wheel shell 2, a side cover 21, a brake shaft 22, an installation step 3, a stator shaft 31, a threaded connection section 4, a power-off brake 41, a seat body 42, a connection shaft sleeve 43, a brake disc 44, an armature 45, a magnetic yoke 5 and an installation plate.
Detailed Description
The invention will now be further described with reference to specific embodiments. The drawings are simplified schematic diagrams only illustrating the basic structure of the present invention in a schematic manner, and thus show only the components related to the present invention.
Example one
As shown in fig. 1 and 2, the moving mechanism based on the hub motor comprises the hub motor and a power-off brake 4. The hub motor comprises a rotor hub and a stator shaft 3, the rotor hub comprises a hub shell 1 and a side cover 2, a shaft hole is formed in the center of the side cover 2, and the outer side wall of the side cover 2 extends outwards along the shaft hole to form a brake shaft 21; the inner end of the stator shaft 3 is in running fit with the inner wall of the wheel shell 1, and the outer end of the stator shaft 3 sequentially penetrates out of the side cover 2 through the brake shaft 21 and is fixedly arranged; specifically, the outer end of the stator shaft 3 is fixedly connected with the mounting plate 5.
The power-off brake 4 comprises a seat body 41, a magnetic yoke 45, an armature 44, a brake disc 43 and a connecting shaft sleeve 42, the whole power-off brake 4 is fixedly connected with the mounting plate 5 through the seat body 41, the connecting shaft sleeve 42 is fixedly connected with the brake shaft 21, and the connecting shaft sleeve 42 is connected with the brake disc 43 through a spline; the magnetic yoke 45 is fixedly arranged in the seat body 41, the armature 44 is positioned between the brake disc 43 and the magnetic yoke 45, when the magnetic yoke 45 works electrically, the armature 44 is adsorbed to leave the brake disc 43, and at the moment, the rotor hub rotates to drive the brake shaft 21, the connecting shaft sleeve 42 and the brake disc 43 to rotate together; when the magnetic yoke 45 is de-energized, the armature 44 leaves the magnetic yoke 45 under the action of the spring, the armature 44 is made to be attached to the brake disc 43 to realize friction braking, and the brake disc 43 limits the rotation of the rotor hub through the brake shaft 21 to realize braking. The power-off brake 4 is also called a power-off brake, belongs to the existing mature products, and the detailed working principle can be found in hundred degrees.
Specifically, a threaded connection section 31 is formed at the outer end of the stator shaft 3, and the stator shaft 3 is fixedly connected with the mounting plate 5 through the threaded connection section 31 in a threaded manner;
specifically, the brake shaft 21 is formed with an installation step 22, the connection shaft sleeve 42 is disposed on the installation step 22, and the locking screw radially penetrates through the connection shaft sleeve 42 and then abuts against the installation step 22, so that the connection shaft sleeve 42 is fixed on the brake shaft 21.
When the moving mechanism is used, the moving mechanism is directly fixed on a device needing to move through the mounting plate 5, the starting response speed of the moving mechanism is higher based on the advantages of the hub motor, and the moving mechanism is matched with a power-off brake to brake in time under the power-off condition, so that the safety is higher; the mechanism structure is more optimized, the parts of the mechanism are reduced, and the cost is reduced.
Example two
The electric wheelchair comprises a frame, wherein the frame is provided with the moving mechanism based on the hub motor. When the electric wheelchair works, the corresponding starting speed is high, the electric wheelchair can be powered off and braked, the safety performance is better, meanwhile, the moving structure of the whole electric wheelchair is optimized, the occupied space of parts and the wheelchair is reduced, and meanwhile, the manufacturing cost of the wheelchair is greatly reduced.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (5)
1. A moving mechanism based on a hub motor is characterized by comprising the hub motor and a power-off brake;
the hub motor comprises a rotor hub and a stator shaft, the rotor hub comprises a hub shell and a side cover, a shaft hole is formed in the center of the side cover, and the outer side wall of the side cover extends outwards along the shaft hole to form a brake shaft; the inner end of the stator shaft is in running fit with the inner wall of the wheel shell, and the outer end of the stator shaft sequentially penetrates out of the side cover through the brake shaft and is fixedly arranged;
the power-off brake comprises a base body and a connecting shaft sleeve suitable for braking, wherein the base body is fixedly arranged, and the connecting shaft sleeve is fixedly connected with the brake shaft so that the power-off brake brakes the brake shaft.
2. The moving mechanism based on the in-wheel motor as claimed in claim 1, further comprising a mounting plate, wherein the seat body of the power-off brake is fixedly connected with the mounting plate, and the outer end of the stator shaft is fixedly connected with the mounting plate.
3. The moving mechanism based on the in-wheel motor as claimed in claim 2, wherein the outer end of the stator shaft forms a threaded connection section for connecting with a mounting plate.
4. The in-wheel motor based moving mechanism as claimed in claim 1, wherein the brake shaft is formed with a mounting step for mounting the coupling bushing.
5. An electric wheelchair, characterized by comprising a frame, wherein the frame is provided with a moving mechanism based on a hub motor according to any one of claims 1-4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921098890.9U CN210225160U (en) | 2019-07-15 | 2019-07-15 | Moving mechanism based on hub motor and electric wheelchair thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921098890.9U CN210225160U (en) | 2019-07-15 | 2019-07-15 | Moving mechanism based on hub motor and electric wheelchair thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210225160U true CN210225160U (en) | 2020-03-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921098890.9U Active CN210225160U (en) | 2019-07-15 | 2019-07-15 | Moving mechanism based on hub motor and electric wheelchair thereof |
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| Country | Link |
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| CN (1) | CN210225160U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110266143A (en) * | 2019-07-15 | 2019-09-20 | 沈骁坚 | Mobile mechanism and its electric wheelchair based on hub motor |
-
2019
- 2019-07-15 CN CN201921098890.9U patent/CN210225160U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110266143A (en) * | 2019-07-15 | 2019-09-20 | 沈骁坚 | Mobile mechanism and its electric wheelchair based on hub motor |
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