WO2016011786A1

WO2016011786A1 - Hub of spoke-type wheel and spoke-type wheelset formed by same

Info

Publication number: WO2016011786A1
Application number: PCT/CN2015/000487
Authority: WO
Inventors: 郭克亚; 郭家妤
Original assignee: 郭克亚
Priority date: 2014-07-20
Filing date: 2015-07-03
Publication date: 2016-01-28
Also published as: CN104129227A; CN104985984A

Abstract

Disclosed are a hub of a spoke-type wheel and a spoke-type wheelset formed by same. A plurality of right-end spoke mounting threaded holes (2) are arranged around one end of a hub body (1), and left-end spoke mounting threaded holes (3) of the same number as the right-end spoke mounting threaded holes (2) are arranged around the other end of the hub body, thereby forming the hub; and the hub is arranged in a rim (13), a spoke (10) penetrates a spoke locating hole (12) on the rim (13), screw threads (10b) at an end portion thereof are mounted in the threaded holes (2, 3) on the hub body (1), and a fastening connection is formed between the hub, the spoke (10) and the rim (13) by adjusting the spoke, thereby forming the spoke-type wheelset. The hub and the spoke-type wheelset have the advantages of a simple structure, low volume, low manufacturing costs, and high-efficiency automated production of the wheelset can be achieved, etc. The present invention is applicable to the fields of bicycles, electric bicycles, children's bicycles, and pushcarts, etc., and other means of transport involving the use of spoke-type wheels.

Description

Flower hub of spoke wheel and spoke wheel set thereof

Technical field

The present invention relates to the field of spoke wheels, and more to the field of vehicles for use with spoke wheels, and more particularly to a hub and spoke wheel set of spoke wheels.

Background technique

As is known, the spoke wheel includes a tire casing, a rim, a spoke, a hub and a central shaft. The tire casing is arranged on the rim, and the rim and the hub are fastened by spokes. The two ends of the hub are respectively connected to the central shaft through bearings, and the two shafts are respectively End-connected frame; spoke-type wheels are used in a wide range of applications, such as motorcycles, bicycles, electric bicycles, children's bicycles and trolleys.

In the prior art, the hub comprises a hub body, a left ear edge and a right ear edge, and a plurality of spoke holes are arranged around the axis of the parallel hub on the left ear edge and the right ear edge, respectively, and the left ear edge and the right ear edge pass through the hub body. The large diameter end of the spoke is first connected to the spoke hole on the hub, and the threaded end of the rear spoke is connected to the rim through the spoke cap; the structure of the hub connected to the central shaft is mainly two, one is the bead Structure, and second is the bearing structure.

Due to the above-mentioned structure of the hub, the existing spoke wheels must be manually assembled during assembly, which is difficult to achieve automated production, resulting in high production costs; in recent years, on children's bicycles and trolleys with low carrying capacity The spoke wheel used has some technical improvements; a spoke wheel constructed by welding technology has the advantages of simple structure, few parts, low cost, etc. However, there are unstable factors in the welding process, and the welding place will be generated. The phenomenon of virtual welding or false welding leads to a decrease in structural strength. Welding also causes metal deformation to cause the wheel to yaw, which seriously affects product quality.

By analyzing the problems of the prior art, it is necessary to propose a new technical solution to improve.

Summary of the invention

The technical problem to be solved by the present invention is to provide a hub of spoke-type wheels, design a new connection method of hubs and spokes, optimize the assembly method of hubs, spokes and rim connections, and form a novel spoke wheel set to realize the wheel set. Automated assembly production to reduce production costs and improve product competitiveness.

The technical solution adopted by the present invention to solve the above technical problems is:

A hub of a spoke wheel, characterized in that it comprises a hub body and a plurality of right end spokes a threaded hole is mounted, and a left end spoke mounting threaded hole having the same number as the right end spoke mounting threaded hole is provided, and a plurality of the right end spoke mounting threaded holes are circumferentially disposed at one end of the hub body, and the other end of the hub is surrounded Providing the left end spoke mounting threaded hole of the same number as the right end spoke mounting threaded hole, the right end spoke mounting threaded hole and the left end spoke mounting threaded hole being disposed at a position of both ends of the hub body, or the right end The spoke mounting threaded hole and the left end spoke mounting threaded hole are correspondingly disposed at positions of the both ends of the hub body.

The hub of the spoke wheel, wherein the axis of the left end spoke mounting threaded hole intersects the axis of the hub body and the vertical bisector of the hub axis, respectively, and the axis of the right end spoke mounting threaded hole is also respectively A line intersects the axis of the hub and the vertical bisector of the hub axis.

The hub of the spoke wheel, wherein the axis of the left end spoke mounting threaded hole and the axis of the right end spoke mounting threaded hole are respectively perpendicular to an axis of the hub body.

The hub of the spoke wheel, wherein the axis of the left end spoke mounting threaded hole may also be selected to intersect any parallel line of the hub body axis and any parallel line of the axial bisector of the hub body, respectively. The axis of the right end spoke mounting threaded bore also intersects any parallel line of the hub axis and any parallel line of the vertical bisector of the hub.

The hub of the spoke wheel further includes at least one external thread disposed at one end of the hub body for connecting an external component.

The hub of the spoke wheel, further comprising a second external thread, the external thread being disposed at one end of the hub body, the second external thread being disposed at the other end of the hub body, the external thread and the second thread External threads are used to connect external components.

The hub of the spoke wheel, wherein the external thread is mated with an inner screw on the flywheel.

The hub of the spoke wheel, wherein the second external thread is coupled to the brake device.

The hub of the spoke wheel further includes at least one inscribed thread disposed at an end of the hub body for connecting an external component.

The hub of the spoke wheel, wherein the hub body further comprises a right end large diameter tube, a right end excess surface, a left end large diameter tube and a left end excess surface; the left end large diameter tube, the left end excessive surface, the hub The body, the right end excess surface and the right end large diameter tube are disposed adjacent to each other and are formed by processing a straight through tube, and the plurality of right end spoke mounting threaded holes are disposed around the right large diameter tube, The left end spoke mounting threaded holes of the same number of right end spoke mounting threaded holes are disposed around the left large diameter pipe.

The hub of the spoke wheel, wherein the left end large diameter pipe, the left end excessive face, the hub body, the right end over face and the right end large diameter pipe are adjacently arranged adjacent to each other, and are integrated. A plurality of the right end spoke mounting threaded holes are disposed around the right end excess surface, and the left end spoke mounting screw holes having the same number of the right end spoke mounting thread holes are disposed around the left end excessive surface.

The hub of the spoke wheel, wherein the right end large diameter tube, the right end excess surface, the left end large diameter tube and the left end excess surface are formed by expanding a tube to form a dumbbell shape .

The hub of the spoke wheel, wherein the right end large diameter tube, the right end excess surface, the left end large diameter tube, and the left end excess surface on the hub body are formed by turning to form a dumbbell shape.

The hub of the spoke wheel, wherein the right end large diameter tube, the right end excess surface, the left end large diameter tube and the left end excess surface on the hub body are formed by casting to form a dumbbell shape.

The hub of the spoke wheel, further comprising a right inner ring disposed in an inner tube wall at a right end of the hub body, and a left inner ring disposed at a left end of the hub body a plurality of the right end spoke mounting threaded holes are disposed on the right inner ring, and the threaded holes penetrate the surface of the hub body, and the right end spokes are circumferentially disposed on the left inner ring The left end spokes of the same number of threaded holes are mounted to mount the threaded holes, and the threaded holes penetrate the surface of the hub body.

The hub of the spoke wheel, wherein the right inner ring is further selected as a right ear edge, and the left inner ring is set as a left ear edge; the right ear edge and the left ear edge pass through the hub a body connection, or the hub body, the right ear edge and the left ear edge are integral; a plurality of the right end spoke mounting threaded holes are circumferentially disposed on the right ear edge; on the left ear edge The left end spoke mounting threaded hole is provided in the same manner as the right end spoke mounting threaded hole.

The hub of the spoke wheel, wherein the right ear edge and the left ear edge are respectively riveted to the hub body.

The hub of the spoke wheel, further comprising a right end bearing, a left end bearing, a shaft center, a spoke with the same number of the left end spoke mounting threaded holes and the left end spoke mounting threaded hole, and a rim; the rim The spoke locating hole is disposed around the right end spoke mounting threaded hole and the left end spoke mounting threaded hole; the spoke adjusting device is further disposed at the large diameter end of the spoke, and the small diameter end thereof is provided with a thread; The right end bearing and the left end bearing are respectively installed in inner tube walls at both ends of the hub body, one end of the shaft center is connected with the right end bearing, and the other end is connected with the left end bearing; In the rim, the spoke passes through the spoke locating hole on the rim, the thread of the end thereof is installed in the right end spoke mounting threaded hole, and the second spoke passes through the a second of the spoke locating holes on the rim adjacent to the spoke locating hole, the thread of the end portion thereof being installed in the left end spoke mounting threaded hole, and sequentially mounting all of the spokes; Adjusting means adjusting the spoke through the hub body, the fastening connection between the spoke and the rim, the spoke wheel constituting the group.

The hub of the spoke wheel, wherein the long rod screw spoke further comprises a second spoke adjusting device, the second spoke adjusting device is disposed on the long rod screw spoke, and the second spoke adjusting device is adjusted a hub joint, a long rod screw spoke and a fastening connection between the rim; and the roundness of the rim can be controlled by adjusting the second spoke adjusting device The degree of yaw and the coaxiality of the rim and the hub.

The hub of the spoke wheel, further comprising a spoke cap of the same number as the spoke, the spoke being a double-start threaded spoke, the hub body and the rim being disposed on the same axis, the double-start thread One end of the spoke is mounted in the right end spoke mounting threaded hole on the hub body, the other end of which is mounted in the spoke cap, and the spoke cap is mounted in the spoke positioning hole on the rim; One end of the second double-threaded spoke adjacent to the double-threaded spoke is mounted in the left-end spoke mounting threaded hole on the hub body, and the other end is mounted in the second spoke cap, Two spoke caps are mounted on the rim on a second of the spoke locating holes adjacent to the spoke locating holes, sequentially mounting all of the double-start thread spokes and the spoke cap; by adjusting the spoke cap A fastening connection is made between the hub body, the double-start threaded spokes and the rim.

The invention has the advantages that the flower drum of the spoke wheel of the invention has the advantages of simple structure, small volume and few parts, and only needs to be provided with a plurality of mounting thread holes on both ends of one pipe member to form a hub of a wheel, and the processing method is simple. The manufacturing cost is low; the assembly method of the spoke wheel set of the invention is simple, the coaxiality between the rim and the hub is easy to adjust, the high-efficiency automated mass production can be realized, the product has good market competitiveness, and is easy to promote; The invention is applicable to the fields of bicycles, electric bicycles, children's bicycles and trolleys, and other transportation vehicles involving spoke wheels.

DRAWINGS

The invention includes the following figures:

1 is a schematic structural view of Embodiment 1 of the present invention;

2 is a schematic structural view of Embodiment 2 of the present invention;

Figure 3 is a cross-sectional view showing a second embodiment of the present invention;

Figure 4 is a cross-sectional view showing a third embodiment of the present invention;

Figure 5 is a cross-sectional view showing a fourth embodiment of the present invention;

Figure 6 is a schematic structural view of Embodiment 5 of the present invention;

Figure 7 is a cross-sectional view showing the assembly of the sixth hub, the right end spoke, the shaft, and the like according to the embodiment of the present invention;

Figure 8 is a cross-sectional view showing the assembly of the sixth hub, the left end spoke, the shaft, and the like according to the embodiment of the present invention;

9 is a schematic structural view of a six-spoke strip according to an embodiment of the present invention;

10 is a schematic structural view of a first spoke wheel set according to Embodiment 6 of the present invention;

11 is a schematic structural view of a second spoke wheel set according to Embodiment 7 of the present invention;

Figure 12 is a schematic structural view of a spoke of a long rod screw according to an embodiment of the present invention;

Figure 13 is a schematic structural view of a third spoke wheel set according to Embodiment 8 of the present invention;

Figure 14 is a schematic view showing the structure of a double-headed thread spoke and a spoke cap according to an embodiment of the present invention;

Figure 15 is a schematic view showing the structure of a fourth spoke wheel set according to Embodiment 9 of the present invention.

detailed description

The present invention will be further described in detail below based on the accompanying drawings and embodiments:

As shown in FIG. 1, the hub of the spoke wheel of the present invention comprises a hub body 1, a plurality of right end spoke mounting threaded holes 2, and a left end spoke mounting threaded hole 3 of the same number as the right end spoke mounting threaded hole 2, in the hub body 1 One end of the hub body 1 is provided with a plurality of right end spoke mounting threaded holes 2, and the other end of the hub body 1 is provided with the same number of left end spoke mounting threaded holes 3 as the right end spoke mounting threaded holes 2, the right end spoke mounting threaded holes 2 and the left end spoke mounting threaded holes 3 Cross the position at the ends of the hub body 1.

In a specific embodiment of the present invention, the axis of the left end spoke mounting threaded hole 3 intersects the axis of the hub body 1 and the vertical bisector of the hub body 1 axis, respectively, and the axis of the right end spoke mounting threaded hole 2 is also associated with the hub 1 respectively. The axis intersects the vertical bisector of the axis of the hub body 1 . The axes of the right end spoke mounting threaded hole 2 and the left end spoke mounting threaded hole 3 are respectively disposed obliquely to the axis of the hub body 1.

In a specific embodiment of the present invention, the axis of the right end spoke mounting threaded hole 2 and the left end spoke mounting threaded hole 3 may be selected to be perpendicular to the axis of the hub body 1, respectively.

In a specific embodiment of the present invention, it is also possible to select that the axis of the left end spoke mounting threaded hole 3 intersects any parallel line of the hub body 1 axis and any parallel line of the axial vertical bisector of the hub body 1 respectively, and the right end spoke is installed with the threaded hole. The axis of 2 also intersects any parallel line of the axis of the hub 1 and any parallel line of the vertical bisector of the hub body 1, respectively.

As shown in FIG. 2 and FIG. 3, the hub of the spoke wheel of the present invention can be selected such that the right end spoke mounting threaded hole 2 and the left end spoke mounting threaded hole 3 are correspondingly disposed at the ends of the hub body 1.

As shown in FIG. 4, the hub of the spoke wheel of the present invention further includes a right inner ring 4 and a left inner ring 5, the right inner ring 4 is disposed in the inner tube wall at the right end of the hub body 1, and the left inner ring 5 is disposed on the hub body 1. In the inner tube wall of the left end, a plurality of right end spoke mounting threaded holes 2 are arranged around the right inner ring 4, and the threaded holes 2 extend through the surface of the hub body 1, and the threaded holes 2 are arranged around the left inner ring 5 and the right end spokes. The same number of left end spokes are provided with the threaded holes 3, and the threaded holes 3 penetrate the surface of the hub body 1.

In a specific embodiment of the invention, the hub body 1, the right inner ring 4 and the left inner ring 5 may be selected as a single unit.

In a specific embodiment of the present invention, it is also possible to select that the hub body 1 is a straight-through tube member, and the right inner ring 4 and the left inner ring 5 are respectively disposed at both ends of the straight-through tube member.

As shown in FIG. 5, the right inner ring 4 in the hub of the spoke wheel of the present invention can also be set as the right ear edge 6, and the left inner ring 5 can also be set as the left ear edge 7, the right ear edge 6 and the left ear edge 7. A plurality of right end spoke mounting threaded holes 2 are circumferentially disposed on the right ear edge 6 by a fixed connection of the hub body 1; a left end spoke mounting threaded hole 3 is provided on the left ear edge 7 in the same number as the right end spoke mounting threaded holes 2.

In a particular embodiment of the invention, the right ear edge 6 and the left ear edge 7 are respectively sleeved at the ends of the hub body 1 for riveted joints.

As shown in FIG. 6, the hub body 1, the right ear edge 6, and the left ear edge 7 of the present invention are one whole. body.

As shown in FIG. 7, FIG. 8, FIG. 9, FIG. 10, the hub of the spoke wheel of the present invention further includes a right end bearing 8, a left end bearing 9, a shaft center 11, a right end spoke mounting threaded hole 2, and a left end spoke mounting threaded hole 3. The same number of spokes 10 and the rim 13; the rim 13 is provided with spoke locating holes 12 of the same number as the right end spoke mounting threaded holes 2 and the left end spoke mounting threaded holes 3; spokes are also provided at the large diameter end of the spokes 10 The adjusting device 10a has a small diameter end provided with a thread 10b; the right end bearing 8 and the left end bearing 9 are respectively installed in the inner tube wall at both ends of the hub body 1, and one end of the shaft center 11 is connected to the right end bearing 8 and the other end is connected to the left end bearing 9. The hub body 1 is disposed in the rim 13, the spokes 10 are passed through the spoke locating holes 12 on the rim 13, the threads 10b at the ends thereof are mounted in the right end spoke mounting threaded holes 2, and the second spokes 10 pass through the rim 13 and The second spoke locating hole 12 adjacent to the spoke locating hole 12, the thread 10b at the end thereof is installed in the left end spoke mounting screw hole 3, and all the spokes 10 are sequentially mounted; the hub body 1 and the spoke 10 are adjusted by adjusting the spoke adjusting device 10a. Between the rim and the rim 13 Solid connections, constituting the first group 50 a spoke wheel.

In a particular embodiment of the invention, the spoke adjustment device 10a is internally hexagonal.

In a specific embodiment of the present invention, the spoke adjusting device 10a may also be selected to be in a shape of a line.

In a specific embodiment of the invention, it is also possible to select the spoke adjustment device 10a to be in the shape of a cross.

In a specific embodiment of the invention, it is also possible to select the spoke adjustment device 10a to be triangular.

As shown in Fig. 11, the right ear edge 6, the hub body 1 and the left ear edge 7 of the wheel set 50 of the present invention constitute a dumbbell-shaped hub which constitutes a second spoke wheel set 60.

As shown in FIG. 12 and FIG. 13, the long rod screw spoke 10 in the hub of the spoke wheel of the present invention further includes a second spoke adjusting device 10d, and the second spoke adjusting device 10d is disposed on the long rod screw spoke 10, Adjusting the second spoke adjusting device 10d to fasten the connection between the hub body 1, the long rod screw spoke 10 and the rim 13, forming a third spoke wheel set 70; and controlling the rim 13 by the second adjusting spoke adjusting device 10d The roundness and yaw degree, and the concentricity of the rim 13 and the hub body 1.

In a specific embodiment of the invention, the second adjustment spoke adjustment device 10d has an outer quadrilateral shape.

In a specific embodiment of the invention, it is also possible to select the second adjustment spoke adjustment device 10d as an adjustment device having at least two parallel faces.

As shown in FIG. 14 and FIG. 15, the hub of the spoke wheel of the present invention further includes a spoke cap 14 of the same number as the spoke 10, the spoke 10 is provided as a double-start thread spoke 15, and the large spoke of the spoke cap 14 is provided with a first spoke. The cap adjusting device 14b is provided with a second spoke cap adjusting device 14a at a small diameter end thereof, and the core portion of the spoke cap 14 is provided with an internally threaded hole; the two ends of the double-start thread spoke 15 are respectively provided with a second thread 15a and a third thread 15b The hub body 1 and the rim 13 are disposed on the same axis, and the third thread 15b at one end of the double-start threaded spoke 15 is mounted in the right end spoke mounting threaded hole 2 on the hub body 1 and the second thread 15a at the other end thereof is mounted on the spoke cap 14 internal threaded holes, spokes The cap 14 is mounted in the spoke locating hole 12 on the rim 13; the third thread 15b at one end of the second double-threaded spoke 15 adjacent to the double-threaded spoke 15 is mounted on the hub spoke 1 with a left-end spoke mounting threaded hole The second thread 15a at the other end of the third thread is mounted in the internally threaded hole of the second spoke cap 14, and the second spoke cap 14 is mounted on the second spoke locating hole of the rim 13 adjacent to the spoke locating hole 12. 12, in turn, all the double-head threaded spokes 15 and the spoke caps 14 are installed; the first spoke cap adjusting device 14b is used to fasten the connection between the hub body 1, the double-start thread spokes 15, the spoke caps 14 and the rims 13, or The second spoke cap adjusting device 14a is adjusted to fasten the connection between the hub body 1, the double-threaded spokes 15, the spoke cap 14, and the rim 13, forming a fourth spoke wheel set 80.

A person skilled in the art can implement the present invention in various modifications without departing from the spirit and scope of the invention. The foregoing is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. The equivalent structural changes made in the description of the invention and the contents of the drawings are included in the scope of the invention.

Claims

A hub of a spoke type wheel, comprising: a hub body, a plurality of right end spoke mounting threaded holes, and a left end spoke mounting threaded hole having the same number of threaded holes as the right end spoke mounting, encircling one end of the hub body Providing a plurality of the right end spoke mounting threaded holes, the left end spoke mounting threaded holes of the same number as the right end spoke mounting screw holes are disposed around the other end of the hub body, the right end spoke mounting threaded holes and the The left end spoke mounting screw holes are disposed at positions crossing the two ends of the hub body, or the right end spoke mounting thread holes and the left end spoke mounting thread holes are correspondingly disposed at positions of the both ends of the hub body.
A hub of a spoke-type wheel according to claim 1, wherein an axis of said left end spoke mounting threaded hole intersects a vertical bisector of said hub body axis and said hub body axis, said right end spoke The axis of the mounting threaded hole also intersects the axis of the hub body and the vertical bisector of the hub body axis, respectively;

Or the axis of the left end spoke mounting threaded hole and the axis of the right end spoke mounting threaded hole are perpendicular to the axis of the hub body, respectively;

Or the axis of the left end spoke mounting threaded hole respectively intersects any parallel line of the hub body axis and any parallel line of the axial bisector of the hub body, and the axis of the right end spoke mounting threaded hole is also respectively Any parallel line of the hub axis of the hub intersects any parallel line of the vertical bisector of the hub.
A hub of a spoke-type wheel according to claim 1, further comprising a right inner ring and a left inner ring, said right inner ring being disposed in an inner tube wall at a right end of said hub body, said left inner ring Provided in an inner tube wall at a left end of the hub body, a plurality of the right end spoke mounting screw holes are circumferentially disposed on the right inner ring, and a threaded hole penetrates a surface of the hub body on the left inner ring The left end spoke mounting screw hole is provided in the same manner as the right end spoke mounting screw hole, and the threaded hole penetrates the surface of the hub body.
The hub of the spoke-type wheel according to claim 2, wherein the right inner ring can also be set as a right ear edge, and the left inner ring can also be set as a left ear edge; the right ear edge and the The left ear edge is connected by the hub body, or the hub body, the right ear edge and the left ear edge are integrated; a plurality of the right end spokes are arranged on the right ear edge to install a threaded hole And installing, on the left ear edge, the left end spoke mounting threaded hole of the same number as the right end spoke mounting threaded hole.
A hub of a spoke-type wheel according to claim 1, 2, 3 or 4, further comprising: a right end bearing, a left end bearing, a shaft center, a threaded hole with said right end spoke mounting, and said left end spoke Mounting a spoke having the same total number of threaded holes, and a rim; the rim is circumferentially disposed with the same number of spoke locating holes as the right end spoke mounting threaded hole and the left end spoke mounting threaded hole; Spoke adjustment The device has a small diameter end provided with a thread; the right end bearing and the left end bearing are respectively installed in the inner tube wall at both ends of the hub body, one end of the shaft center is connected with the right end bearing, and the other end is a left end bearing connection; the hub body is disposed in the rim, the spoke passes through the spoke locating hole on the rim, and the thread of the end portion thereof is installed in the right end spoke mounting threaded hole, Two of the spokes are passed through the second spoke locating hole on the rim adjacent to the spoke locating hole, and the thread at the end thereof is installed in the left end spoke mounting threaded hole, and all of the above are sequentially installed a spoke; a spoke wheel set is formed by adjusting the spoke adjusting device to fasten the connection between the hub body, the spokes and the rim.
A spoke wheel set according to claim 5, further comprising a spoke cap of the same number as said spokes, said spokes being provided as double-start threaded spokes, said hub body and said rim being disposed on the same axis One end of the double-start threaded spoke is mounted in the right end spoke mounting threaded hole on the hub body, and the other end thereof is mounted in the spoke cap, and the spoke cap is mounted on the rim a spoke locating hole; one end of the second double-start thread spoke adjacent to the double-start thread spoke is mounted in the left-end spoke mounting threaded hole on the hub body, and the other end is mounted in the second In the spoke cap, a second spoke cap is mounted on a second of the spoke locating holes of the rim adjacent to the spoke locating hole, and sequentially mounting all of the double-start thread spokes and the spoke cap; A secure connection between the hub body, the double-start threaded spokes, and the rim is achieved by adjusting the spoke cap.
The spoke wheel set according to claim 5, wherein the long rod screw spoke further comprises a second spoke adjusting device, and the second spoke adjusting device is disposed on the long rod screw spoke by adjusting the second a spoke adjusting device fastens a connection between the hub body, the long rod screw spokes and the rim; and the roundness and yaw of the rim can be controlled by adjusting a second spoke adjusting device, and The coaxiality of the rim and the hub.