CN109203851B

CN109203851B - Electric tricycle hub

Info

Publication number: CN109203851B
Application number: CN201811256476.6A
Authority: CN
Inventors: 高念峰; 孙伯存; 张西友; 刘岩
Original assignee: Xuzhou Shunda Steel Wheel Manufacturing Co ltd
Current assignee: Xuzhou Shunda Steel Wheel Manufacturing Co ltd
Priority date: 2018-10-26
Filing date: 2018-10-26
Publication date: 2020-05-12
Anticipated expiration: 2038-10-26
Also published as: CN109203851A

Abstract

The invention discloses an electric tricycle hub, which comprises a rim, wherein a fixed shaft is arranged on the rim through spokes, a rotating shaft is arranged in the fixed shaft, two supporting units are symmetrically arranged on the rim, each supporting unit comprises a first elastic plate, a second elastic plate and a third elastic plate, a locking nut is arranged on the fixed shaft, a stepped groove for mounting the third elastic plate is formed in the rim, and the first elastic plate, the second elastic plate and the third elastic plate are mutually abutted together. The two supporting units are symmetrically arranged on the two sides of the rim, so that the strength of the rim is ensured, and meanwhile, the coaxiality between the rim and the fixed shaft is ensured by utilizing the symmetrical arrangement mode, and the deviation between the fixed shaft and the rim caused by uneven stress of the rim in the running process is avoided.

Description

Electric tricycle hub

Technical Field

The invention relates to the technical field of electric vehicle wheels, in particular to an electric tricycle hub.

Background

The electric tricycle has the advantages that the popularization rate of the electric tricycle is very high, the situation of every family is basically achieved, the electric tricycle has the functions of riding instead of walking and pulling goods, the bearing of the corresponding electric tricycle needs to be increased, the strength of the electric tricycle hub needs to be improved, and the deformation of the hub after long-term use is avoided.

Disclosure of Invention

In view of the above technical deficiencies, the present invention provides an electric tricycle hub, which has improved strength, improved driving safety and prolonged service life.

In order to solve the technical problems, the invention adopts the following technical scheme:

the invention provides an electric tricycle hub, which comprises a rim, wherein a fixed shaft is fixedly arranged at the central position of the rim through a plurality of spokes uniformly distributed along the circumferential direction, a rotating shaft capable of rotating is arranged in the fixed shaft, two supporting units are symmetrically arranged on the rim, each supporting unit comprises a first elastic plate, a second elastic plate and a third elastic plate which are coaxially arranged, the second elastic plate is nested on the first elastic plate, the third elastic plate is nested on the second elastic plate, the first elastic plate, the second elastic plate and the third elastic plate are all in a disc shape, a locking nut is assembled on the fixed shaft in a threaded mode, the locking nut abuts against the first elastic plate, the third elastic plate abuts against the rim, and a stepped groove for mounting the third elastic plate is formed in the corresponding rim, the first elastic plate, the second elastic plate and the third elastic plate are mutually abutted together.

Preferably, the first elastic plate and the second elastic plate joint, the second elastic plate and the third elastic plate joint are all fixedly provided with a limiting ring, two limiting rings are respectively fixedly arranged on the first elastic plate and the second elastic plate, a positioning ring is arranged on the inner ring of the second elastic plate and the inner ring of the third elastic plate, and a positioning groove matched with the positioning ring is arranged on the corresponding outer ring of the first elastic plate and the outer ring of the second elastic plate.

Preferably, the limiting ring and the corresponding first elastic plate and the second elastic plate are integrally formed, the positioning ring and the corresponding second elastic plate and the third elastic plate are integrally formed, and the inner ring surface of the limiting ring is an inclined surface.

Preferably, a pressing ring is mounted on the wheel ring and abuts against the outer edge of the third elastic plate.

Preferably, a convex ring is arranged at the center of the first elastic plate, and the locking nut is abutted against the convex ring.

The invention has the beneficial effects that: the two supporting units are symmetrically arranged on the two sides of the rim, so that the strength of the rim is ensured, and meanwhile, the coaxiality between the rim and the fixed shaft is also ensured by utilizing the symmetrical arrangement mode, and the phenomenon that the fixed shaft and the rim deviate due to uneven stress of the rim in the driving process is avoided; in addition, the supporting unit adopts a plurality of disc-shaped elastic plates to form a structure similar to a belleville spring, and generates continuous tension force mutually to generate force pointing to the axis of the fixed shaft, so that 360-degree uniform stress is formed between the rim and the fixed shaft, and further good support is achieved, and deformation of the rim is avoided; meanwhile, the supporting unit adopts a plurality of mutually nested elastic plates, so that the strength of the supporting unit is further improved, and the supporting effect is ensured.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic perspective view of an electric tricycle hub according to an embodiment of the present invention;

FIG. 2 is a top view of an electric tricycle hub according to an embodiment of the present invention;

FIG. 3 is an exploded view of an electric tricycle hub according to an embodiment of the present invention;

FIG. 4 is a front view of an electric tricycle hub according to an embodiment of the present invention;

FIG. 5 is a cross-sectional view taken along line A-A of FIG. 4;

FIG. 6 is an enlarged view of portion B of FIG. 5;

fig. 7 is a force-bearing schematic diagram of the supporting unit.

Description of reference numerals: the wheel comprises a rim 1, a fixed shaft 11, a locking nut 111, spokes 12, a step groove 13, a support unit 2, a first elastic plate 21, a convex ring 211, a second elastic plate 22, a third elastic plate 23, a pressing ring 3, a rotating shaft 4 and a limiting ring 5.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1: as shown in fig. 1 to 7, an electric tricycle hub includes a rim 1, a fixed shaft 11 is fixedly disposed at a central position of the rim 1 through a plurality of spokes 12 uniformly distributed along a circumferential direction, a rotatable rotating shaft 4 is disposed in the fixed shaft 11, two supporting units 2 are symmetrically disposed on the rim 1, each supporting unit 2 includes a first elastic plate 21, a second elastic plate 22 and a third elastic plate 23 which are coaxially disposed, the elastic plates may be made of chrome-manganese alloy steel, the second elastic plate 22 is nested on the first elastic plate 21, the third elastic plate 23 is nested on the second elastic plate 22, the first elastic plate 21, the second elastic plate 22 and the third elastic plate 23 are all disc-shaped, a locking nut 111 is assembled on the fixed shaft 11 by a thread, the locking nut 111 abuts against the first elastic plate 21, the third elastic plate 23 is abutted against the rim 1, a stepped groove 13 for the third elastic plate 23 to be mounted is correspondingly formed in the rim 1, and the first elastic plate 21, the second elastic plate 22 and the third elastic plate 23 are abutted against each other.

Furthermore, the joint of the first elastic plate 21 and the second elastic plate 22 and the joint of the second elastic plate 22 and the third elastic plate 23 are all fixedly provided with a limiting ring 5, two limiting rings 5 are respectively fixedly arranged on the first elastic plate 21 and the second elastic plate 22, a positioning ring is arranged on the inner ring of the second elastic plate 22 and the inner ring of the third elastic plate 23, and a positioning groove matched with the positioning ring is arranged on the outer ring of the first elastic plate 21 and the outer ring of the second elastic plate 22 correspondingly.

Further, the limiting ring 5 and the corresponding first elastic plate 21 and second elastic plate 22 are integrally formed, the positioning ring and the corresponding second elastic plate 22 and third elastic plate 23 are integrally formed, the inner ring surface of the limiting ring 5 is an inclined surface, the arrangement of the inclined surface improves the limiting strength of the limiting ring 5, and the effect of the limiting ring is similar to that of a rib plate for reinforcement.

Further, a pressing ring 3 is mounted on the rim 1, and the pressing ring 3 abuts against the outer edge of the third elastic plate 23.

Further, a convex ring 211 is arranged at the center of the first elastic plate 21, and the locking nut 111 abuts against the convex ring 211.

In addition, the supporting unit 2 adopts a plurality of disc-shaped elastic plates to form a structure similar to a belleville spring, and generates continuous tension (as shown in fig. 5 and 7, a horizontal arrow in fig. 5 represents acting force of the locking nut 111) mutually to generate force pointing to the axis of the fixed shaft 11, so that 360-degree uniform stress is formed between the rim 1 and the fixed shaft 11, the rim 1 is continuously supported, deformation of the rim 1 is avoided, and coaxiality of the rim 1 and the fixed shaft 11 is ensured; meanwhile, the supporting unit 2 is provided with a plurality of elastic plates which are nested with each other, the strength of the supporting unit 2 is further improved, the supporting effect is guaranteed, compared with the supporting method adopting one elastic plate, the supporting of one elastic plate is completed, the large radius is easy to generate transition deformation, the bending resistance is reduced, if the supporting effect is overcome, materials with higher cost or thickness is needed to be adopted, the use cost is increased, one elastic plate is replaced into a plurality of elastic plates, and the phenomenon that the radius of the elastic plate is too large and the transition deformation is generated is avoided.

In other embodiments, the number of the elastic plates can be changed according to the size of the rim 1, if the inner diameter of the rim 1 is small, such as a scooter, one elastic plate can meet the driving requirement, and the supporting unit 2 can comprise one elastic plate, if the rim 1 is large, as in embodiment 1, the conventional rim 1 for an electric vehicle can use three elastic plates.

During the use, support unit 2 is adjusted through lock nut 111, need notice two lock nut 111's the volume of screwing at the in-process of adjustment and will keep unanimous, in order to guarantee two support unit 2's symmetry, then install it on the electric motor car through pivot 4 can, in the in-process of use, can be further through lock nut 111 adjustment support unit 2's tension, adjust it at any time, correct the atress of wheel rim 1, and then guarantee the axiality of wheel rim 1 and fixed axle 11, improve this wheel hub's life, support unit 2 can also play the effect of visor simultaneously.

The two supporting units are symmetrically arranged on the two sides of the rim, so that the strength of the rim is ensured, and meanwhile, the coaxiality between the rim and the fixed shaft is ensured by utilizing the symmetrical arrangement mode, and the deviation between the fixed shaft and the rim caused by uneven stress of the rim in the running process is avoided.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. An electric tricycle hub comprises a rim (1), wherein a fixed shaft (11) is fixedly arranged at the center of the rim (1) through a plurality of spokes (12) which are uniformly distributed along the circumferential direction, a rotatable rotating shaft (4) is arranged in the fixed shaft (11), and the electric tricycle hub is characterized in that two supporting units (2) are symmetrically arranged on the rim (1), each supporting unit (2) comprises a first elastic plate (21), a second elastic plate (22) and a third elastic plate (23) which are coaxially arranged, the second elastic plates (22) are nested on the first elastic plates (21), the third elastic plates (23) are nested on the second elastic plates (22), the first elastic plates (21), the second elastic plates (22) and the third elastic plates (23) are all in a disc shape, and a locking nut (111) is assembled on the fixed shaft (11) through threads, locking nut (111) support tightly on first elastic plate (21), third elastic plate (23) support tightly on wheel rim (1), correspond seted up the confession on wheel rim (1) ladder groove (13) that third elastic plate (23) were installed, first elastic plate (21) second elastic plate (22) and third elastic plate (23) support tightly together each other.

2. The electric tricycle hub according to claim 1, wherein a connection between the first elastic plate (21) and the second elastic plate (22) and a connection between the second elastic plate (22) and the third elastic plate (23) are both fixedly provided with a limiting ring (5), two limiting rings (5) are respectively fixedly provided on the first elastic plate (21) and the second elastic plate (22), positioning rings are respectively provided on an inner ring of the second elastic plate (22) and an inner ring of the third elastic plate (23), and positioning grooves matched with the positioning rings are respectively provided on an outer ring of the first elastic plate (21) and an outer ring of the second elastic plate (22).

3. An electric tricycle hub as claimed in claim 2, characterized in that the stop collar (5) is formed integrally with the corresponding first and second elastic plates (21, 22), the positioning ring is formed integrally with the corresponding second and third elastic plates (22, 23), and the inner ring surface of the stop collar (5) is a bevel.

4. An electric tricycle hub as claimed in claim 1, characterized in that the rim (1) is provided with a clamping ring (3), the clamping ring (3) being in abutment against the outer edge of the third elastic plate (23).

5. The electric tricycle hub according to claim 1, characterized in that a convex ring (211) is provided at the center of the first elastic plate (21), and the locking nut (111) abuts against the convex ring (211).