CN219523565U

CN219523565U - Flower-drum casing and wheel hub subassembly

Info

Publication number: CN219523565U
Application number: CN202222835904.9U
Authority: CN
Inventors: 李激初; 林杰煌
Original assignee: Guangdong Lofandi Intelligent Technology Co ltd
Current assignee: Guangdong Lofandi Intelligent Technology Co ltd
Priority date: 2022-10-26
Filing date: 2022-10-26
Publication date: 2023-08-15
Anticipated expiration: 2032-10-26

Abstract

The utility model discloses a flower-drum shell, wherein a centrifugal block cavity is arranged on the inner wall of the flower-drum shell. Also disclosed is a hub assembly comprising a hub shell as above; a hub axle; a power input member mounted to the hub axle and rotatable on the hub axle; a speed change mechanism provided in the hub shell and having a plurality of power transmission paths; and a control mechanism provided in the hub shell for controlling the transmission mechanism to select a power transmission path; the control mechanism comprises a centrifugal block and a control piece acting on the speed change mechanism, and the centrifugal block corresponds to the centrifugal block cavity. According to the hub shell and hub assembly, the centrifugal block cavity is matched with the centrifugal block of the control mechanism, so that the inner diameter of the hub shell can be effectively reduced, the volumes of the hub shell and the hub assembly are reduced, and the requirement of the market on lightweight design of the bicycle is met.

Description

Flower-drum casing and wheel hub subassembly

Technical Field

The present utility model relates to the field of vehicle transmission devices, and more particularly to a hub shell and hub assembly.

Background

A gear shifting system for a vehicle such as a bicycle generally performs a gear shifting function by combining an adjustment lever and a planetary gear.

In the prior art, a speed change system of a bicycle is divided into two large fields of an outer speed changer and an inner speed changer, the outer speed changer generally adopts an open type chain as a transmission mechanism, and the chain is shifted to different gears through an adjusting rod so as to realize speed change of different proportions.

More and more internal transmissions are popular in the marketplace.

The gear control mechanism of the bicycle inner speed changer realizes different transmission speed ratios by controlling the engagement or separation of a sun gear, a planet carrier or an outer gear ring in the planetary gear mechanism.

In the prior internal speed changer, a plurality of operating mechanisms are required to be arranged for realizing the gear shifting process, the operation is more complicated, and the more the gears of the internal speed changer are, the more the controlled executing mechanisms are, so that the internal speed changer has a complex structure.

In order to solve the above-mentioned problems, an automatic internal transmission has appeared later, and automatic adjustment of the transmission gear is achieved by a centrifugal mass that rotates with rotation of wheels. However, due to the problems of the volume and the rotation space of the centrifugal block, the automatic internal transmission tends to have a larger volume, which is not beneficial to the design concept of light weight and small volume of the main stream in the current market, and increases the transportation cost.

Disclosure of Invention

In order to solve the technical problems, the utility model provides a flower-drum shell, which solves the problem that the existing automatic internal transmission is large in size.

It is desirable to provide a hub assembly that utilizes an upper hub shell.

The technical scheme provided by the utility model is as follows:

a flower-drum shell body,

and a centrifugal block cavity is arranged on the inner wall of the hub shell.

Wherein, the centrifugal block cavity is matched with the stroke space of the centrifugal block of the control mechanism of the speed changer.

Wherein the number of the centrifugal block cavities is more than 2.

The hub shell is provided with an end cover fixing screw hole, and the end cover fixing screw hole is arranged between the two centrifugal block cavities.

A hub assembly, comprising:

a hub shell as described above;

a hub axle;

a power input member mounted to the hub axle and rotatable on the hub axle;

a speed change mechanism provided in the hub shell and having a plurality of power transmission paths; the method comprises the steps of,

the control mechanism is arranged in the hub shell and used for controlling the speed change mechanism to select a power transmission path;

the control mechanism comprises a centrifugal block and a control piece acting on the speed change mechanism, and the centrifugal block corresponds to the centrifugal block cavity.

The power input part comprises a hub shell, a power input part, an end cover and a power input part, wherein the power input part is arranged on the hub shell, and the power input part is arranged on the power input part.

The end cover is provided with a fixed mounting hole, and the fixed mounting hole corresponds to the end cover fixing screw hole.

The control mechanism comprises an adjusting piece and a control rod connected with the adjusting piece, one end of the control rod is connected with the centrifugal block, and the other end of the control rod acts on the speed change mechanism.

The centrifugal block comprises a centrifugal part, a centrifugal mounting part and a control rod mounting part, wherein the centrifugal mounting part is rotatably mounted on the adjusting piece, the control rod mounting part is in driving connection with the speed change mechanism through a control rod, and the stroke space of the centrifugal part is matched with the centrifugal block cavity of the hub shell.

Wherein, speed change mechanism is planetary gear assembly.

The utility model provides a flower-drum shell, wherein a centrifugal block cavity is arranged on the inner cavity wall of the flower-drum shell. The centrifugal block cavity is matched with the centrifugal block, so that the inner diameter of the hub shell can be effectively reduced, the size of the hub shell is reduced, the size of the bicycle is reduced, and the requirement of the light weight design on the bicycle on the market is met.

Similarly, the hub assembly provided by the utility model is small in installation volume and meets the requirement of light weight design on bicycles in the market.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of the structure of a drum shell of the present utility model;

FIG. 2 is a schematic structural view of a control mechanism;

FIG. 3 is an internal schematic view of the drum assembly of the present utility model;

FIG. 4 is a schematic diagram of the structure of a centrifugal block;

FIG. 5 is a schematic diagram of an end cap structure;

FIG. 6 is a schematic back view of the end cap;

FIG. 7 is a schematic view of the external structure of the drum assembly of the present utility model;

FIG. 8 is an axial cross-sectional schematic view of a drum assembly of the present utility model;

FIG. 9 is a schematic structural view of an adjusting member;

in the figure, a hub shell 1, a centrifugal block cavity 11, an end cover fixing screw hole 12, a hub inner liner 24, a control mechanism 2, an end cover 3, a fixing mounting hole 31, an adjusting worm wheel hole 32, an adjusting hole 33, a speed change mechanism 4, a hub shaft 5, a centrifugal block 21, an adjusting member 22, a centrifugal part 211, a centrifugal mounting part 212, a control rod mounting part 213, a centrifugal block seat 23, a hub inner liner 24 and a power input member 6.

Detailed Description

In order to enable those skilled in the art to better understand the technical solutions of the present utility model, the technical solutions of the embodiments of the present utility model will be clearly and completely described below, and it is obvious that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are merely for convenience in describing and simplifying the description based on the orientation or positional relationship shown in the drawings, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" or "a number" means two or more, unless specifically defined otherwise.

It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the utility model to the extent that it can be practiced, since modifications, changes in the proportions, or adjustments of the sizes, which are otherwise, used in the practice of the utility model, are included in the spirit and scope of the utility model which is otherwise, without departing from the spirit or scope thereof.

The embodiment of the utility model is written in a progressive manner.

As shown in fig. 1, a hub shell 1 is provided, on the inner wall of the hub shell 1, with a centrifugal block cavity 11.

Further combining fig. 2, 3 and 4, the centrifugal block cavity 11 is matched with the centrifugal block 21 of the control mechanism 2 of the transmission, so that the inner diameter of the hub shell 1 can be effectively reduced, the volume of the hub shell 1 is reduced, the volume of a bicycle is reduced, and the requirement of the light weight design on the bicycle in the market is met.

The centrifugal block cavity 11 of the present utility model is matched with the stroke space of the centrifugal block 21.

The structural principle on the control mechanism 2 is that the centrifugal motion of the centrifugal block 21 acts on the planetary gear assembly 4 to enable the planetary gear assembly 4 to transmit power in different paths so as to realize speed change, so that not only is the space occupied by the centrifugal block 21 installed on the hub shell 1 reserved enough space to enable the centrifugal motion of the centrifugal block 21, but also the speed change of the control mechanism 2 can be realized, the inner diameter of the inner cavity of the hub shell 1 is often increased to meet the requirement of the centrifugal block 21 in the hub shell 1 in the prior art, so that the inner diameter of the hub shell 1 is increased, the size of an automatic internal transmission is greatly increased, but the inner wall of the hub shell 1 is provided with the centrifugal block cavity 11 matched with the centrifugal block 21, the stroke space of the centrifugal block cavity 11 and the centrifugal block 21 of the control mechanism 2 is matched, the volume of the hub shell 1 is reduced, and meanwhile, the operation of the control mechanism 2 is well ensured.

According to the number of the centrifugal blocks 21 on the control mechanism 2, the number of the centrifugal block cavities 11 on the inner wall of the hub shell 1 in the embodiment of the utility model is more than 2, and the number is matched with the number of the centrifugal blocks 21 on the control mechanism 2.

In the embodiment of the utility model, the end cover fixing screw holes 12 are arranged on the hub shell 1, the end cover fixing screw holes 12 are used for fixing the hub shell 1 and the end cover 3, and the end cover fixing screw holes 12 are arranged on the hub shell 1 between the centrifugal block cavities 11, so that the connection between the hub shell 1 and the end cover 3 is more stable. The space between the two adjacent centrifugal block cavities 11 may be defined between the two centrifugal block cavities 11, or may be defined between the two spaced centrifugal block cavities 11.

As shown in fig. 7, the embodiment of the present utility model further provides a hub assembly, which includes the hub shell 1 and the end cover 3 provided in the embodiment of the present utility model, and the end cover 3 is installed on a side of the hub shell 1 away from the power input member 6.

The end cover 3 can protect the components in the hub shell 1 and is more beneficial to be connected with other components in a mounting way.

As shown in fig. 8, the embodiment of the present utility model further provides a hub assembly including the hub shell 1 as above; a hub axle 5; a power input member 6 mounted on the hub shaft 5 and rotatable on the hub shaft 5; a speed change mechanism 4 provided in the hub casing 1 and having a plurality of power transmission paths; a control mechanism 2 provided in the hub casing 1 for controlling the transmission mechanism 4 to select a power transmission path; wherein the control mechanism 2 comprises a centrifugal block 21 and a control piece acting on the speed change mechanism 4, and the centrifugal block 21 corresponds to the centrifugal block cavity 11.

The principle of the hub assembly for realizing automatic internal speed change provided by the embodiment of the utility model is that in the process of wheel rotation, the centrifugal block 21 can directly or indirectly rotate along with the wheel rotation so as to be subjected to centrifugal force, the centrifugal block 21 centrifugally moves in the hub shell 1 under the action of the centrifugal force, and the centrifugal block 21 acts on a speed change mechanism through a driving control piece to output different power, so that speed change is realized.

The hub assembly of the present embodiment further includes an end cap 3, the end cap 3 being mounted on the side of the hub shell 1 remote from the power input 6. The arrangement of the end cover 3 plays a role in protecting all components in the inner cavity of the hub shell 1 and is also convenient for the installation of the hub shell 1.

In general, as shown in fig. 2 and 9, the control mechanism 2 includes an adjusting member 22 and a lever connected to the adjusting member 22, one end of the lever being connected to the centrifugal mass 21, and the other end of the lever acting on the speed change mechanism.

The centrifugal block 21 in the embodiment of the utility model comprises a centrifugal part 211, a centrifugal mounting part 212 and a control rod mounting part 213, wherein the centrifugal mounting part 212 is rotatably mounted on the adjusting piece 22, the control rod mounting part 213 is in driving connection with the speed change mechanism 4 through a control rod, and the stroke space of the centrifugal part 211 is matched with the centrifugal block cavity 11 of the hub shell 1.

When the centrifugal block 21 rotates with the adjusting member 22, the centrifugal block is driven around the centrifugal mounting portion 212 due to the centrifugal effect of the centrifugal portion 211, thereby driving the lever mounting portion 213 to rotate, and the lever also moves under the rotation of the lever mounting portion 213, thereby adjusting the speed change mechanism 4 to output different powers.

As shown in fig. 5 and 6, the end cover 3 of the present utility model is provided with the fixing and mounting hole 31, the fixing and mounting hole 31 corresponds to the end cover fixing screw hole 12, and the fixing and mounting hole 31 and the end cover fixing screw hole 12 are connected by bolts or screws, so that the connection between the hub shell 1 and the end cover 3 is more stable, and the whole hub assembly is also more stable and not easy to loosen.

The speed change mechanism 4 in the embodiment of the utility model is preferably a planetary gear assembly.

In the embodiment of the utility model, the speed change mechanism 4 and the control mechanism 2 are all arranged in the inner cavity of the flower-drum shell 1, so that the speed change mechanism 4 and the control mechanism 2 can be installed and protected, and meanwhile, the speed change mechanism 4 and the control mechanism 2 are arranged in the inner cavity of the flower-drum shell 1, so that the control mechanism with linkage connection function can realize the automatic speed change function more stably.

The power input member 6 of the present utility model is a pulley or a gear, and the end cap 3 at one end is also connected to the power input member 6.

The hub shell and hub assembly of the utility model can be applied to wheel devices of two-wheelers, tricycles or four-wheelers such as motorcycles, bicycles, electric vehicles, ebike, scooter and the like.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A flower-drum casing, its characterized in that:

a centrifugal block cavity (11) is arranged on the inner wall of the hub shell (1);

the centrifugal block cavity (11) is matched with a stroke space of a centrifugal block (21) of a control mechanism (2) of the speed changer.

2. The hub shell according to claim 1, wherein:

the number of the centrifugal block cavities (11) is more than 2.

3. The hub shell according to claim 1, wherein:

the hub shell (1) is provided with end cover fixing screw holes (12), and the end cover fixing screw holes (12) are arranged between the two centrifugal block cavities (11).

4. A hub assembly, comprising:

a hub shell (1) according to any one of claims 1 to 3;

a hub shaft (5);

a power input member (6) mounted on the hub shaft (5) and rotatable on the hub shaft (5);

a speed change mechanism (4) provided in the hub shell (1) and having a plurality of power transmission paths; the method comprises the steps of,

a control mechanism (2) provided in the hub shell (1) for controlling the transmission mechanism (4) to select a power transmission path;

the control mechanism (2) comprises a centrifugal block (21) and a control piece acting on the speed change mechanism (4), and the centrifugal block (21) corresponds to the centrifugal block cavity (11).

5. The hub assembly of claim 4, wherein:

the novel drum power input device further comprises an end cover (3), wherein the end cover (3) is arranged on one side, far away from the power input piece (6), of the drum shell (1).

6. The hub assembly of claim 5, wherein:

the end cover (3) is provided with a fixed mounting hole (31), and the fixed mounting hole (31) corresponds to an end cover fixing screw hole (12) arranged on the hub shell (1).

7. A hub assembly according to any one of claims 4 to 6, wherein:

the control piece comprises an adjusting piece (22) and a control rod connected with the adjusting piece (22), one end of the control rod is connected with the centrifugal block (21), and the other end of the control rod acts on the speed change mechanism (4).

8. The hub assembly of claim 7, wherein:

the centrifugal block (21) comprises a centrifugal part (211), a centrifugal mounting part (212) and a control rod mounting part (213), wherein the centrifugal mounting part (212) is rotatably mounted on the adjusting piece (22), the control rod mounting part (213) is in driving connection with the speed change mechanism (4) through a control rod, and the stroke space of the centrifugal part (211) is matched with the centrifugal block cavity (11) of the hub shell (1).

9. The hub assembly of claim 8, wherein:

the speed change mechanism (4) is a planetary gear assembly.