WO2023088025A1

WO2023088025A1 - Hub assembly

Info

Publication number: WO2023088025A1
Application number: PCT/CN2022/126329
Authority: WO
Inventors: 李磊; 张卓
Original assignee: 宁波维伦智能科技有限公司
Priority date: 2021-11-19
Filing date: 2022-10-20
Publication date: 2023-05-25
Also published as: CN216231461U

Abstract

A hub assembly, relating to the technical field of bicycle hubs and comprising: a hub connecting member (1) connected to a frame; and a hub body (2) coaxial with the hub connecting member (1) and rotating relative to same. The hub body (2) comprises: a spoke part (3) for mounting spokes; and a brake part (4) used for mounting a brake disk (9). The spoke part (3) and the brake part (4) are detachably connected and coaxially rotate together by means of an associated structure.

Description

a hub assembly

technical field

The present application relates to the field of bicycle hubs, in particular to a hub assembly.

Background technique

The hub is an important part of the bicycle wheel. The hub is commonly known as the "hub barrel", which is the barrel that connects the spokes outside the axle, and is usually called the axle skin. According to the different arrangements of the number of lines, there are generally 3 and 5 weaving methods. There are two types of hubs: iron hubs and aluminum hubs.

A traditional bicycle hub assembly consists of a hub axle and a hub body. The hub axle is used to mount to the bicycle frame. The hub body is coaxial with the hub shaft and can rotate relative to each other. The hub body is used for the installation of the spokes, and the brake pads of the wheels are installed on the hub body. The common installation method is directly fixed by screws to realize the synchronization between the hub body and the brake pads. Rotate, and then can control the deceleration of the wheel by performing a braking operation on the brake pad.

In order to install the brake pads on the hub body without interfering between the spokes and the brake pads, a part of the hub body needs to protrude specially for the brake pads to be installed. When installing, no matter whether the spokes are installed first or the brake pads are installed first, the one installed first part, it will make it inconvenient to clamp and fix the hub main body, which is not conducive to continuing to install another part.

Contents of the invention

In order to facilitate the installation of the hub assembly and the disassembly for subsequent maintenance, the present application provides a hub assembly.

A hub assembly provided by the application adopts the following technical scheme:

A hub assembly, comprising:

Hub connector: used to connect with the frame;

A hub body, the hub body is coaxial with the hub connector and rotates relative to each other, the hub body includes:

Spoke part: for spoke installation;

Brake part: for brake pad installation;

The spoke part and the brake part are detachably connected through an associated structure and rotate coaxially.

By adopting the above-mentioned technical scheme, by dividing the hub body into two parts, the spoke part and the brake part, the spoke part is used for the installation of the spokes, and the brake part is used for the installation of the brake pads, and the installation does not affect each other. The brake parts of the brake pads are connected to facilitate installation and subsequent disassembly and maintenance. The hub body is modularly disassembled to facilitate disassembly and transportation, and indirectly reduce transportation costs.

Optionally, the association structure includes an association piece, on which the spoke portion and the brake portion are fitted, and the rotation association is realized through the association piece.

By adopting the above technical solution, the spoke part and the brake part are connected through the related parts, and the spoke part and the brake part are fixed with the related parts respectively, and the linkage is completed, and the structure is simple and effective.

Optionally, the associated structure includes an associated protrusion and an associated groove, the associated protrusion and the associated groove are respectively provided on the spoke part and the brake part, and the associated protrusion and the associated Groove fit for rotational association.

By adopting the above-mentioned technical scheme, through the insertion and fixing of the associated protrusion and the associated groove, the insertion and fixing between the spoke part and the brake part are realized, and the associated protrusion and the associated groove cooperate with each other to transmit the rotational force, thereby completing the spoke part and the brake part. The rotation relationship between the brake parts is simple and effective in structure, and the installation and disassembly are relatively convenient.

Optionally, the spoke portion is provided with a first association hole through which the association piece passes, and the brake portion is opened with a second association hole for the association piece to pass through, and the wall of the first association hole The outer peripheral wall of the associated part is provided with protrusions and sliding grooves that cooperate with each other, and the second associated hole wall and the outer peripheral wall of the associated part are also provided with protrusions and sliding grooves that cooperate with each other.

By adopting the above technical solution, the rotation association is realized between the spoke part and the associated part through the cooperation of the protrusion and the slide groove, and the rotation association is also realized between the brake part and the association part through the cooperation of the protrusion and the slide groove, so that the rotation association is more stable , and the installation and disassembly of the spoke part and the brake part are relatively convenient. The spoke part after the spokes are installed only needs to be set on the associated parts, and the brake part after the brake pads are installed only needs to be set on the associated parts.

Optionally, the outer peripheral wall of the associated protrusion and the groove wall of the associated groove are provided with protrusions and slide grooves that cooperate with each other.

By adopting the above technical solution, the associated protrusion and the associated groove realize rotational association through the cooperation of the protrusion and the sliding groove, so that the installation between the brake part and the spoke part is convenient, and the associated state is stable.

Optionally, a cross section of the associated protrusion and a cross section of the associated groove are polygons in which the inside and outside fit together.

By adopting the above technical solution, the rotational force transmission between the spoke portion and the brake portion is more uniform and stable.

Optionally, the associated protrusion is integrally provided on the brake part, and the associated groove is opened on the spoke part.

Optionally, the brake part is provided with fastening holes for fixing the brake pad screws, the number of the fastening holes is consistent with the number of protrusions on the associated protrusions, and one by one around the axis of the hub assembly. Corresponding arrangement.

By adopting the above technical solution, the force exerted by the brake pad on the brake part can be transferred to the corresponding protrusions of the associated protrusions, so that the limiting force can be better transmitted to the spoke parts, and finally the wheel can be braked better.

Optionally, the hub connecting piece is set and rotatably mounted on the associated piece, the end of the hub connecting piece is installed with a fastener, and the hub body is located between the hub connecting piece and the fastener , while the axial limit.

By adopting the above-mentioned technical solution, through the cooperation of the fastener and the hub connecting piece, the axial limit of the hub body is completed, and the stability of the connection between the parts of the hub body is maintained.

Optionally, there are two hub connectors, and the two hub connectors are fitted one by one and rotatably mounted on the associated member, and the hub body is located between the two hub connectors.

By adopting the above technical solution, the parts of the hub body are axially limited through the two hub connectors, and at the same time, the two hub connectors are connected with the frame to better support the frame through the wheels.

To sum up, the production and assembly of the hub body into modules is convenient for installation and subsequent maintenance, and reduces transportation costs.

Description of drawings

Fig. 1 is a schematic diagram of the installation structure of the hub assembly and the brake pad in the embodiment of the present application;

Fig. 2 is an exploded view of a hub assembly and a brake pad in an embodiment of the present application;

Fig. 3 is an exploded view of the hub body in the embodiment of the present application.

Explanation of reference numerals: 1. Hub connector; 2. Hub body; 3. Spoke portion; 31. First associated hole; 32. Spoke ring; 4. Brake portion; 41. Second associated hole; 42. Suit convex 43, fastening hole; 5, associated piece; 61, associated protrusion; 62, associated groove; 7, fastener; 8, abutment block; 9, brake pad.

Detailed ways

The present application will be described in further detail below in conjunction with accompanying drawings 1-3.

The embodiment of the present application discloses a hub assembly.

Referring to Figures 1 and 2, a hub assembly includes a hub connector 1 for connecting with a frame, a hub body 2 and associated parts 5, the hub body 2 includes a spoke part 3 for spoke installation and a brake pad 9 for installation brake part 4.

Referring to Fig. 3, the spoke part 3 is cylindrical, and the hole inside the spoke part 3 is set as the first associated hole 31, and the spoke part 3 is provided with an annular spoke ring 32 for the installation of the spokes, and the inner side of the spoke ring 32 is It is integrated with the outer peripheral wall of the spoke part 3 , and the outer side of the spoke ring 32 extends radially along the spoke part 3 , and there are preferably two spoke rings 32 , and the two ends of the spoke part 3 are respectively arranged.

Referring to Fig. 3 , the brake part 4 is in the shape of a disc, and coaxially opened with a second associated hole 41 through which it penetrates, the brake part 4 is coaxially protruded with a set protrusion 42, and the brake pad 9 is set on the set protrusion 42 It is fixed with the brake part 4 screws, wherein the brake part 4 is provided with fastening holes 43 for the brake pads 9 to be screwed, the number of fastening holes 43 is preferably six, and the six fastening holes 43 are along the circumference of the brake part 4 Equiangular interval set.

Referring to Fig. 2 and Fig. 3, there is an associated protrusion 61 protruding from the natal coaxial of the brake part 4 away from the set protrusion 42, and an associated groove 62 cooperating with the associated protrusion 61 is provided at one end of the spoke part 3; the associated protrusion 61 is inserted into the Installed in the associated groove 62, and the cross-section of the associated protrusion 61 and the cross-section of the associated groove 62 are polygons that fit inside and outside to realize the rotational association between the brake part 4 and the spoke part 3. At this time, the associated The corner of the protrusion 61 and the corner of the associated groove 62 can be regarded as the protrusion and the groove that apply force to each other; in this embodiment, the cross section of the associated protrusion 61 is preferably a hexagonal shape that matches the six fastening holes 43, and the six The four fastening holes 43 correspond to the six corners of the associated protrusion 61 one by one; the outer peripheral wall of the associated protrusion 61 is an arc surface without abrupt angles, so that the outer peripheral wall of the associated protrusion 61 is more rounded, and it is easier and less difficult to install. Collision damage.

Reasonably deduced, the cross-section of the associated protrusion 61 can also be a hexagonal prism, and the cross-section of the corresponding associated groove 62 can also be a hexagonal prism; meanwhile, the associated protrusion 61 can completely fill the associated groove 62, and the associated protrusion 61 can also be a hexagonal prism. The associated groove 62 may not be completely filled, as long as the associated protrusion 61 and the associated groove 62 form a protrusion and a groove that apply force to each other, the rotational association between the two can be realized.

Further, the associated protrusion 61 can also be integrally arranged on the spoke part 3, and penetrated by the first associated hole 31; the corresponding associated groove 62 is opened on the brake part 4, at this time, the associated groove 62 can be directly opened on the brake part 4 The plate surface away from the suit protrusion 42 can also protrude a bump on the plate surface of the brake part 4 away from the suit protrusion 42 and open an associated groove 62 .

The associated part 5 can be a solid shaft, and the associated part 5 passes through the first associated hole 31 and the second associated hole 41 to realize the fitting and fixing between the hub body 2 and the associated part 5; the wall of the first associated hole 31 and the associated part The outer peripheral wall of 5 is provided with protrusions and slide grooves that cooperate with each other, and the second associated hole 41 is also provided with protrusions and slide grooves that cooperate with the outer peripheral wall of the associated piece 5; obviously, the cross section of the associated piece 5 is not circular , and fill the first associated hole 31 and the second associated hole 41 to form a cooperating protrusion and a sliding groove. In this embodiment, the cross section of the associated part 5 is preferably in the shape of a playground.

The cross-section of the associated part 5 can also be circular. At this time, there is an interference fit between the associated part 5 and the hub body 2. Obviously, the implementation mode of the interference fit is not as good as the above-mentioned solution in terms of disassembly convenience.

Reasonably deduced, the associated part 5 may also be a pipe.

The hub connector 1 can be a sleeve or a shaft.

When the hub connector 1 adopts a sleeve: there can be two hub connectors 1, and the two hub connectors 1 are set on the associated part 5, and the bearing is clamped between the hub connector 1 and the associated part 5, so that the rotation is easier Smooth; the hub body 2 is located between the two hub connectors 1, the hub connector 1 is fixed to the frame, the hub body 2 is coaxial with the hub connector 1 and rotates relative to each other.

There can also be one hub connector 1. At this time, the hub connector 1 is set on the associated part 5, and at the same time, the end of the associated part 5 away from the hub connector 1 is threaded with a solid piece, which is preferably a screw; the hub body 2 It is located between the hub connector 1 and the fastener 7, and the abutment block 8 is clamped between the solid piece and the hub body 2, thereby reducing the wear of the hub body 2; the fastener 7 abuts the abutment block 8, and The connecting block 8 abuts against the hub body 2; in this embodiment, preferably, the fastener 7 is located on one side of the spoke portion 3, and the spoke portion 3 has a coaxial hole for the abutting block 8 to insert.

When the hub connecting piece 1 adopts a shaft: the connecting piece 5 can be a pipe, at this time, the connecting piece 5 can be set on the hub connecting piece 1, and the hub body 2 can be fixed to the hub body 2 through the frame part fixed to the end of the hub connecting piece 1 Axial limit.

The associated part 5 can also be a shaft part. In this case, the number of the hub connecting parts 1 is two, and the two ends of the connecting part 5 are provided with holes for installing the hub connecting parts 1 .

The implementation principle of a hub assembly in the embodiment of the present application is as follows: when installing, the brake pad 9 can be installed with the brake part 4, the spoke can be installed with the spoke part 3, and then the brake part 4 and the spoke part 3 can be plugged and fixed. , thereby reducing the difficulty of assembling the hub assembly.

All of the above are preferred embodiments of the application, and are not intended to limit the protection scope of the application. Therefore, all equivalent changes made according to the structure, shape, and principle of the application should be covered by the protection scope of the application. Inside.

Claims

A hub assembly, characterized in that: comprising:

Hub connector (1): used to connect with the frame;

A hub body (2), the hub body (2) is coaxial with the hub connector (1) and rotates relatively, the hub body (2) includes:

Spoke part (3): for spoke installation;

Brake part (4): for installation of brake pads (9);

The spoke part (3) and the brake part (4) are detachably connected through an associated structure and rotate coaxially together.
A hub assembly according to claim 1, characterized in that: the associated structure includes an associated piece (5), and the spoke portion (3) and the brake portion (4) are both sleeved on the associated piece ( 5), and realize the rotation association through the associated piece (5).
A hub assembly according to claim 1 or 2, characterized in that: the associated structure includes an associated protrusion (61) and an associated groove (62), and the associated protrusion (61) and the associated groove Grooves (62) are respectively provided on the spoke portion (3) and the brake portion (4), and the association protrusion (61) is plugged and fitted with the association groove (62) to realize rotational association.
A hub assembly according to claim 2, characterized in that: the spoke portion (3) is provided with a first association hole (31) through which the association piece (5) passes, and the brake portion (4 ) is provided with a second associated hole (41) for the associated piece (5) to pass through, and the hole wall of the first associated hole (31) and the outer peripheral wall of the associated piece (5) are provided with protrusions that cooperate with each other and a sliding groove, the hole wall of the second associated hole (41) and the outer peripheral wall of the associated piece (5) are also provided with protrusions and sliding grooves that cooperate with each other.
A hub assembly according to claim 3, characterized in that: the outer peripheral wall of the associated protrusion (61) and the groove wall of the associated groove (62) are provided with protrusions and slide grooves that cooperate with each other.
A hub assembly according to claim 3, characterized in that: the cross section of the associated protrusion (61) and the associated groove (62) are polygonal in which the inside and outside fit together.
A hub assembly according to claim 3, characterized in that: the associated protrusion (61) is integrally arranged on the brake part (4), and the associated groove (62) is opened on the spoke part ( 3).
A hub assembly according to claim 5, characterized in that: the brake part (4) is provided with a fastening hole (43) for screwing the brake pad (9), and the fastening hole (43) The number is consistent with the number of protrusions on the associated protrusions (61), and are arranged in a one-to-one correspondence around the axis of the hub assembly.
A hub assembly according to claim 2, characterized in that: the hub connecting piece (1) is sleeved and rotatably mounted on the associated piece (5), the end of the hub connecting piece (1) is installed with a tight A fastener (7), the hub body (2) is located between the hub connector (1) and the fastener (7), and axially limited.
A hub assembly according to claim 2, characterized in that there are two hub connectors (1), and the two hub connectors (1) are fitted one by one and are rotatably mounted on the associated member (5), the hub body (2) is located between the two hub connectors (1).