CN212046859U

CN212046859U - Motor hub assembly

Info

Publication number: CN212046859U
Application number: CN202020592914.2U
Authority: CN
Inventors: 徐洁航; 庄国林; 吴舜祥
Original assignee: Jinhua Zhuoyuan Industry Co ltd
Current assignee: Jinhua Zhuoyuan Industry Co ltd
Priority date: 2020-04-20
Filing date: 2020-04-20
Publication date: 2020-12-01
Anticipated expiration: 2030-04-20

Abstract

The utility model discloses a motor wheel hub subassembly, including wheel hub, wheel hub on be provided with shaft hole, terminal surface, still include connecting seat, fastener, wheel hub on be provided with the concave part, the concave part on be provided with the bottom, the inner chamber aperture of concave part be greater than the aperture in shaft hole, the bottom be less than the terminal surface, the connecting seat be located the concave part in, just the connecting seat pass through the fastener with the bottom connect. The utility model discloses a concave part that sets up on wheel hub provides installation space for the connecting seat on the one hand, and on the other hand concave part can carry out the adaptation with the connecting seat of different models to reduce wheel hub's kind, improve production efficiency, reduce cost.

Description

Motor hub assembly

Technical Field

The utility model relates to a wheel hub motor technical field especially relates to a motor wheel hub subassembly.

Background

Because the electric bicycle is not only labor-saving but also environment-friendly when riding, the bicycle is more and more favored by outworkers. However, the existing electric bicycles have various models, such as road vehicles, mountain vehicles, city vehicles, snowmobiles and the like, so that the types of the motor hubs are various. The variety of the motor hubs not only reduces the production efficiency of enterprises, but also increases the cost. Therefore, there is a need for improvements and optimizations to existing motor hubs.

Disclosure of Invention

The utility model discloses to the motor wheel hub's that exists among the prior art a great variety, the production efficiency of enterprise is low, has increased defects such as cost, provides a new motor wheel hub subassembly.

In order to solve the technical problem, the utility model discloses a following technical scheme realizes:

the utility model provides a motor hub subassembly, includes wheel hub, wheel hub on be provided with shaft hole, terminal surface, still include connecting seat, fastener, wheel hub on be provided with the concave part, the concave part on be provided with the bottom, the inner chamber aperture of concave part be greater than the aperture in shaft hole, the bottom be less than the terminal surface, the connecting seat be located the concave part in, just the connecting seat pass through the fastener with the bottom be connected.

The shaft hole that sets up on the wheel hub is used for other spare parts such as the axle of installation motor. The end face arranged on the hub is convenient for positioning during processing and assembling of the hub on one hand, and on the other hand, the overall appearance of the hub is more attractive. The concave part that sets up on the wheel hub provides installation space for the connecting seat on the one hand, and on the other hand concave part can carry out the adaptation with the connecting seat of different models to reduce wheel hub's kind, improve production efficiency, reduce cost. When the connecting seat is placed in the concave part on the hub according to the technological requirements, the fastener is connected with the bottom arranged on the concave part, namely the relative position of the connecting seat and the concave part is locked.

Preferably, in the motor hub assembly, the bottom is provided with a first connecting hole, the connecting seat is provided with a second connecting hole, and the fastening member passes through the second connecting hole and is connected with the first connecting hole.

The fastening piece penetrates through the second connecting hole and is connected with the first connecting hole between the hub and the connecting seat, so that the operation is simple, and the requirement on the technical skill of an operator is low; meanwhile, the second connecting hole and the first connecting hole are easy to process, and the time and labor cost is low during processing.

Preferably, in the motor hub assembly, the second connecting hole includes a through hole portion and a counter bore portion, the fastening member includes a fixing shaft and a counter bore portion, the through hole portion is in clearance fit with the fixing shaft, and the counter bore portion is matched with the counter bore portion.

The adaptation mode of countersunk head portion and countersink portion makes the whole outward appearance of motor wheel hub subassembly more pleasing to the eye on the one hand, and on the other hand can prevent that operating personnel from being scratched by the fastener. The form of clearance fit of the perforating part and the fixed shaft is simple in process in the assembling process and independent of experience skills of operators.

Preferably, in the hub assembly of a motor, the fastening member is provided with an external thread, the first connection hole is provided with an internal thread, and the external thread provided on the fastening member is connected with the internal thread provided on the first connection hole.

The internal screw thread connected mode that sets up on the external screw thread that sets up on the fastener and the first connecting hole is easy operation not only, and external screw thread and internal screw thread processing technology are ripe moreover, have further reduced the utility model discloses a cost.

Preferably, in the motor hub assembly, the connecting base includes a convex portion and an adapter portion, the convex portion is located in the concave portion, and the convex portion is connected with the bottom portion through the fastening member.

The connecting seat adopts this kind of structure of convex part, switching portion, and the difficulty that further reduces the processing technology of connecting seat on the one hand, and on the other hand further reduces the weight of motor wheel hub subassembly, is convenient for its transportation and management.

Preferably, in the motor hub assembly, the adapter portion includes a large shaft section and a small shaft section, and an outer diameter of the large shaft section is larger than an outer diameter of the small shaft section.

The adapter part adopts a structure of a large shaft section and a small shaft section, so that the weight of the motor hub assembly is further reduced; on the other hand, the large shaft section provides a limit for other parts mounted on the small shaft section, and a gap can be reserved between the other parts and the end face of the hub.

Preferably, in the hub assembly of a motor, the small shaft section is provided with an external thread.

The external thread arranged on the small shaft section is more convenient to be connected with other parts.

Preferably, in the hub assembly of a motor, the small shaft section is provided with the long protrusions at intervals.

On the one hand, the long-strip bulges arranged on the small shaft section at intervals are convenient to connect with other parts, and on the other hand, the other parts can be limited.

Drawings

FIG. 1 is an exploded view of the present invention;

fig. 2 is a cross-sectional view of the present invention;

FIG. 3 is an enlarged view of a portion A of FIG. 2;

FIG. 4 is a perspective view of the middle and small shaft sections of the present invention with external threads;

fig. 5 is a perspective view of the middle and small shaft sections of the present invention with a strip-shaped protrusion.

Detailed Description

The invention will be described in further detail with reference to the accompanying drawings 1-5 and the detailed description, but they are not intended to limit the invention:

example 1

The utility model provides a motor hub subassembly, includes wheel hub 1, wheel hub 1 on be provided with shaft hole 11, terminal surface 13, still include connecting seat 2, fastener 3, wheel hub 1 on be provided with concave part 12, concave part 12 on be provided with bottom 121, concave part 12 the inner chamber aperture be greater than the aperture of shaft hole 11, bottom 121 be less than terminal surface 13, connecting seat 2 be located concave part 12 in, just connecting seat 2 pass through fastener 3 with bottom 121 be connected.

In the assembly of the utility model, the connecting seat 2 is placed on the bottom 121 arranged on the concave part 12 according to the technological requirements; the fastener 3 is passed through the joint socket 2, and the fastener 3 is attached to the bottom 121 provided on the recess 12. The assembly of the utility model is completed.

Preferably, the bottom portion 121 is provided with a first connection hole 122, the connection holder 2 is provided with a second connection hole 21, and the fastening member 3 passes through the second connection hole 21 and is connected with the first connection hole 122.

Preferably, in the motor hub assembly, the second connecting hole 21 includes a through hole portion 211 and a counter bore portion 212, the fastening member 3 includes a fixing shaft 31 and a counter bore portion 32, the through hole portion 211 is in clearance fit with the fixing shaft 31, and the counter bore portion 32 is matched with the counter bore portion 212.

Preferably, in the hub assembly of the motor, the fastening member 3 is provided with an external thread, the first connecting hole 122 is provided with an internal thread, and the external thread provided on the fastening member 3 is connected with the internal thread provided on the first connecting hole 122.

Preferably, the connecting base 2 includes a convex portion 22 and an adaptor portion 23, the convex portion 22 is located in the concave portion 12, and the convex portion 22 is connected with the bottom portion 121 through the fastening member 3.

Preferably, the adapter 23 includes a large shaft section 231 and a small shaft section 232, and the outer diameter of the large shaft section 231 is larger than that of the small shaft section 232.

Preferably, the small shaft section 232 is provided with an external thread.

Preferably, the small shaft section 232 is provided with long protrusions 233 at intervals.

More specifically, in the assembly of the present invention, the convex portion 22 is placed on the bottom portion 121 of the concave portion 12 according to the process requirement, and the hole axis of the perforated portion 211 coincides with the hole axis of the first connecting hole 122; the fixing shaft 31 is passed through the perforated portion 211, and the fixing shaft 31 is coupled to the first coupling hole 122 with the countersunk portion 212 in contact with the countersunk portion 32. The assembly of the utility model is completed.

In short, the above description is only a preferred embodiment of the present invention, and all the equivalent changes and modifications made within the scope of the claims of the present invention should be covered by the present invention.

Claims

1. The utility model provides a motor hub subassembly, includes wheel hub (1), wheel hub (1) on be provided with shaft hole (11), terminal surface (13), its characterized in that: still include connecting seat (2), fastener (3), wheel hub (1) on be provided with concave part (12), concave part (12) on be provided with bottom (121), the inner chamber aperture of concave part (12) be greater than the aperture of shaft hole (11), bottom (121) be less than terminal surface (13), connecting seat (2) be located concave part (12) in, just connecting seat (2) pass through fastener (3) with bottom (121) be connected.

2. A motor hub assembly as claimed in claim 1, wherein: the bottom (121) is provided with a first connecting hole (122), the connecting seat (2) is provided with a second connecting hole (21), and the fastener (3) penetrates through the second connecting hole (21) and is connected with the first connecting hole (122).

3. A motor hub assembly as claimed in claim 2, wherein: the second connecting hole (21) comprises a through hole part (211) and a counter bore part (212), the fastener (3) comprises a fixing shaft (31) and a counter bore part (32), the through hole part (211) is in clearance fit with the fixing shaft (31), and the counter bore part (32) is matched with the counter bore part (212).

4. A motor hub assembly as claimed in claim 2, wherein: fastener (3) on be provided with the external screw thread, first connecting hole (122) on be provided with the internal thread, fastener (3) on the external screw thread that sets up with first connecting hole (122) on the internal thread connection that sets up.

5. A motor hub assembly as claimed in claim 1, wherein: the connecting seat (2) comprises a convex part (22) and an adapter part (23), the convex part (22) is positioned in the concave part (12), and the convex part (22) is connected with the bottom part (121) through the fastener (3).

6. An electric motor hub assembly as set forth in claim 5, wherein: the adapter part (23) comprises a large shaft section (231) and a small shaft section (232), and the outer diameter of the large shaft section (231) is larger than that of the small shaft section (232).

7. An electric motor hub assembly as set forth in claim 6, wherein: and the small shaft section (232) is provided with an external thread.

8. An electric motor hub assembly as set forth in claim 6, wherein: the small shaft section (232) is provided with long-strip bulges (233) at intervals.