CN219727734U - Connection structure of spoke and split type flower-drum - Google Patents
Connection structure of spoke and split type flower-drum Download PDFInfo
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- CN219727734U CN219727734U CN202321146402.3U CN202321146402U CN219727734U CN 219727734 U CN219727734 U CN 219727734U CN 202321146402 U CN202321146402 U CN 202321146402U CN 219727734 U CN219727734 U CN 219727734U
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- spoke
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- drum
- groove
- middle arc
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- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- 230000002093 peripheral effect Effects 0.000 description 6
- 238000009434 installation Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009954 braiding Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Abstract
The utility model discloses a connecting structure of spokes and split type flower drums, which comprises a split type flower drum and a plurality of spokes, wherein the split type flower drum comprises a flower drum body and a spoke disc sleeved on the flower drum body, a rotation stopping structure for limiting relative circumferential rotation of the flower drum body and the spoke disc is arranged between the flower drum body and the spoke disc, a plurality of clamping grooves extending in the circumferential direction are formed in the end face of the spoke disc along the circumferential direction, the spokes are in one-to-one correspondence with the clamping grooves, the middle parts of the spokes are embedded in the clamping grooves, and two ends of the spokes are respectively used for being connected with a rim. The connecting structure of the spoke and the split type hub solves the problem that stress concentration is easy to occur at the joint of the hub and the spoke to cause fatigue damage in the prior art, reduces the deformation risk of the spoke disc, increases the stability of the connection of the hub and the spoke, and is beneficial to reducing the maintenance cost.
Description
Technical Field
The utility model relates to the technical field of wheels, in particular to a connecting structure of spokes and split type hub.
Background
A hub in a bicycle refers to a drum-like object in the center of the wheel. The hub is internally provided with a bearing and a shaft lever, the hub is connected with the frame through the shaft lever, the outside is connected with the rim through spokes, and the hub is a core component in the wheel set, and is named as the hub because the hub is quite like a folk knocked-out hub. The spoke is a straight stick or a steel bar for connecting a hub and a rim in a wheel, one end of most of the spokes on the market is a threaded end, the other end is a bending hat end or a flat head, the spoke and the hub are connected with clamping holes on the hub through the bending hat end or the flat head of the spoke, for example, the Chinese patent of application No. CN201320196076.7 discloses an anti-rotation combination structure of a hub shell and the spoke.
Disclosure of Invention
The utility model aims to provide a connecting structure of spokes and split type flower drums, which solves the problem that in the prior art, the connection part of the flower drum and the spokes is easy to be subjected to fatigue damage due to stress concentration, and ensures the stability of the connection of the flower drum and the spokes.
In order to achieve the above purpose, the technical scheme provided by the utility model is as follows:
the utility model provides a connection structure of spoke and split type flower-drum, it includes split type flower-drum and a plurality of spoke, and wherein, split type flower-drum includes flower-drum body and cover establishes the spoke dish on the flower-drum body, is provided with the relative circumference pivoted rotation stopping structure of restriction two between flower-drum body and the spoke dish, and the spoke dish is equipped with a plurality of circumference extension's draw-in grooves at its terminal surface along circumference. The spokes are in one-to-one correspondence with the clamping grooves, the middle parts of the spokes are embedded in the clamping grooves, and the two ends of the spokes are respectively used for being connected with the rim.
Preferably, the clamping groove comprises a middle arc-shaped groove coaxial with the spoke disk, a first limit groove extending outwards from one end of the middle arc-shaped groove, and a second limit groove extending outwards from the other end of the middle arc-shaped groove.
Preferably, the spoke comprises a middle arc section, a first connecting section and a second connecting section, wherein the middle arc section is embedded in the middle arc groove, one end of the first connecting section is connected with one end of the middle arc section and embedded in the first limiting groove, the other end of the first connecting section is used for connecting a rim, one end of the second connecting section is connected with the other end of the middle arc section and embedded in the second limiting groove, and the other end of the second connecting section is used for connecting the rim.
Preferably, the included angle between the first connecting section and the second connecting section is alpha, and alpha is more than or equal to 90 degrees and less than or equal to 150 degrees.
Preferably, the clamping groove is deeply tapered from one end to the other end, and the adjacent first limiting groove and the second limiting groove are mutually intersected.
Preferably, the junction of the middle arc-shaped groove and the first limit groove is arranged in a tangential connection relationship, and the middle arc-shaped groove and the first limit groove are continuously and smoothly connected. The juncture of the middle arc-shaped groove and the second limit groove is arranged in tangential connection, and the middle arc-shaped groove and the second limit groove are continuously and smoothly connected. The juncture of the first connecting section and the middle arc-shaped section is arranged in tangential connection, and the first connecting section and the middle arc-shaped section are continuously and smoothly connected. The juncture of the second connecting section and the middle arc-shaped section is arranged in tangential connection, and the second connecting section and the middle arc-shaped section are connected smoothly.
Preferably, the rotation stopping structure comprises a first non-circular rotation stopping surface arranged on the outer peripheral surface of the hub body and a second non-circular rotation stopping surface correspondingly arranged on the inner peripheral surface of the spoke disk.
Preferably, the first non-circular stop surface comprises at least one first straight surface and the second non-circular stop surface comprises at least one second straight surface. The first straight surface and the second straight surface are parallel to the axis of the flower-drum body, or the first straight surface and the second straight surface are gradually far away from the axis of the flower-drum body from the end part of the flower-drum body to the middle part of the flower-drum body.
Preferably, one of the first non-circular rotation stopping surface and the second non-circular rotation stopping surface comprises at least one concave arc surface, and the other one comprises at least one convex arc surface.
By adopting the technical scheme, the utility model has the beneficial effects that: the hub adopts a split design, the spoke disc and the hub body can be independently replaced, the maintenance cost is reduced, the relative circumferential rotation of the hub body and the spoke disc is limited by arranging the rotation stopping structure between the hub body and the spoke disc, so that the positioning and the installation of the spoke disc are facilitated, the problem of stress concentration caused by the perforation of the hub is solved by arranging the clamping grooves for embedding spokes on the end face of the spoke disc, the conventional hub and spoke connecting structure is changed, the stress concentration problem caused by the perforation of the hub is also increased, the stress area of the joint of the hub and the spokes is also increased, the deformation risk of the spoke disc is reduced, and the stability of the connection of the hub and the spokes is increased.
Drawings
Fig. 1 is a schematic perspective view of a preferred embodiment of the present utility model.
Fig. 2 is a schematic front view of fig. 1.
Fig. 3 is a schematic perspective view of the split drum in fig. 1.
Fig. 4 is a schematic perspective view of the spoke plate of fig. 3.
Fig. 5 is a schematic front view of fig. 4.
FIG. 6 is a schematic view of the connection between the spoke plate and the spokes of FIG. 1.
Fig. 7 is a schematic front view of the spoke plate and spokes of fig. 1.
Fig. 8 is a schematic diagram of a connection structure of the hub body and the spoke plate.
Wherein: 1. the hub comprises a split hub body, a spoke disk, a clamping groove, spokes, a rim, a middle arc-shaped groove, a first limit groove, a second limit groove, a middle arc-shaped section, a first connecting section, a second connecting section, a first non-circular rotation stopping surface, a second non-circular rotation stopping surface, a first straight surface, a second straight surface, a concave arc-shaped surface and an outer convex arc-shaped surface.
Detailed Description
The utility model will be further described with reference to the drawings and detailed description.
As shown in fig. 1 to 8, the connection structure of the spoke and the split type flower-drum of the present embodiment includes a split type flower-drum 1 and a plurality of spokes 5. The split type flower-drum 1 includes flower-drum body 2 and spoke dish 3, and spoke dish 3 cover is established on flower-drum body 2, and both restrict two relative circumference through the structure of stopping to rotate to realize spoke dish 3 and the quick location assembly of flower-drum body 2, adjustment time when reducing the assembly, and ensure assembly accuracy. The spoke 5 is used for connecting split type flower-drum 1 and rim 6, and a plurality of draw-in grooves 4 that circumference extends have been seted up along circumference to the terminal surface of spoke dish 3 of this embodiment, and the middle part of spoke 5 is inlayed and is located in draw-in groove 4, and the both ends of spoke 5 are connected with rim 6 respectively, and spoke dish 3 is located the inboard of spoke 5. Compared with the traditional hub and spoke connection structure, the spoke and split type hub connection structure of the embodiment eliminates the problem of stress concentration caused by hub perforation, simultaneously increases the stress area of the joint of the split type hub 1 and the spoke 5, the force applied to the split type hub 1 by each spoke 5 is towards the axis of the split type hub 1, the force is dispersed to the groove wall of the clamping groove 4, and is substantially dispersed to the circumferential surface of the spoke disc 3, so that the deformation risk of the spoke disc 3 is reduced, the service life of the split type hub 1 is guaranteed, the clamping groove 4 clamps the spoke 5 from the inner side and the outer side of the spoke 5, and the connection stability of the split type hub 1 and the spoke 5 is improved.
Specifically, the clamping groove 4 of the present embodiment includes a central arc-shaped groove 7 coaxial with the spoke 3, a first limit groove 8 extending outward from one end of the central arc-shaped groove 7 in a tangential direction, and a second limit groove 9 extending outward from the other end of the central arc-shaped groove 7 in a tangential direction. The middle arc-shaped groove 7 is continuously and smoothly connected with the first limit groove 8 and the second limit groove 9 respectively. The spoke 5 of this embodiment comprises a middle arc-shaped section 10, a first connecting section 11 extending outwards from one end of the middle arc-shaped section 10 in a tangential direction, and a second connecting section 12 extending outwards from the other end of the middle arc-shaped section 10 in a tangential direction, wherein the included angle between the first connecting section 11 and the second connecting section 12 is alpha, and alpha is more than or equal to 90 degrees and less than or equal to 150 degrees. The middle arc-shaped section 10 is continuously and smoothly connected with the first connecting section 11 and the second connecting section 12 respectively, the middle arc-shaped section 10 is matched with the middle arc-shaped groove 7, the first connecting section 11 is matched with the first limiting groove 8, and the second connecting section 12 is matched with the second limiting groove 9.
In order to meet the requirements of the tangential braiding method, the slot depth of the clamping slot 4 in the embodiment is reduced from one end to the other end, and the adjacent first limit slot 8 and second limit slot 9 are mutually intersected, so that the first connecting section 11 and the second connecting section 12 are arranged in a front-back intersection manner, the power transmission efficiency is improved, and the capability of the spoke 5 for resisting side impact force is improved.
The rotation stopping structure of this embodiment includes a first non-circular rotation stopping surface 13 disposed on the outer peripheral surface of the hub body 2, and a second non-circular rotation stopping surface 14 disposed correspondingly on the inner peripheral surface of the spoke 3. Through setting up first non-circular face 13 that splines and second non-circular face 14 that splines for at least part cross-section profile of flower-drum body 2 outer peripheral face and spoke dish 3 inner peripheral face is non-circular, with the relative rotation of effective restriction flower-drum body 2 and spoke dish 3, save the relative rotation that splines that sets up complicated structure to restrict flower-drum body 2 and spoke dish 3, and do benefit to the location installation of spoke dish 3 on flower-drum body 2, save the time of adjustment spoke dish 3 mounted position, and be convenient for follow-up spoke 5 and the assembly of rim 6, do benefit to improvement assembly effect, improve assembly precision.
In a preferred embodiment of the present utility model, the first non-circular rotation stopping surface 13 includes at least one first flat surface 15, the second non-circular rotation stopping surface 14 includes at least one second flat surface 16, and the first flat surface 15 and the second flat surface 16 are parallel to the axis of the hub body 2, however, the first flat surface 15 and the second flat surface 16 may also be designed to be gradually arranged away from the axis of the hub body 2 from the end of the hub body 2 to the middle of the hub body 2, so that after the spoke disc 3 is installed in place, the spoke disc 3 is limited to move forward continuously, so as to further improve the positioning and installation speed and improve the assembly precision. In another preferred embodiment of the present utility model, the first non-circular rotation stop surface 13 comprises at least one convex arcuate surface 18 and the second non-circular rotation stop surface 14 comprises at least one concave arcuate surface 17 that mates with the convex arcuate surface 18. In this embodiment, in combination with the rotation stopping structure of the foregoing two embodiments, eight first flat surfaces 15 and eight convex arc surfaces 18 are alternately arranged on the outer circumferential surface of the hub body 2 in turn along the circumferential direction, and correspondingly, eight second flat surfaces 16 and eight concave arc surfaces 17 are alternately arranged on the inner circumferential surface of the spoke disk 3 in turn along the circumferential direction.
In order to make the hub body 2, the spoke disk 3 and the spoke 5 more stable in connection, the three can be correspondingly bonded together for reinforcement by using the sizing material when the three are assembled. For convenient assembly, the spokes 5 and the spoke disk 3 can be assembled into a whole and then connected with the hub body 2.
While the utility model has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.
Claims (10)
1. A connection structure of spoke and split type flower-drum, characterized by comprising:
the split type flower-drum (1) comprises a flower-drum body (2) and a spoke disc (3) sleeved on the flower-drum body (2), a rotation stopping structure for limiting relative circumferential rotation of the flower-drum body (2) and the spoke disc (3) is arranged between the flower-drum body (2) and the spoke disc (3), and a plurality of clamping grooves (4) extending circumferentially are formed in the end face of the spoke disc (3) along the circumferential direction;
the spokes (5) are in one-to-one correspondence with the clamping grooves (4), the middle parts of the spokes (5) are embedded in the clamping grooves (4), and two ends of each spoke (5) are respectively connected with the rim (6).
2. The spoke and split hub connection structure according to claim 1, wherein the clamping groove (4) comprises:
the middle arc-shaped groove (7) is coaxial with the spoke disc (3);
the first limit groove (8) extends outwards from one end of the middle arc groove (7);
and the second limit groove (9) extends outwards from the other end of the middle arc groove (7).
3. The connecting structure of the spoke and the split flower-drum according to claim 2, wherein the clamping groove (4) is gradually reduced from one end to the other end, and the adjacent first limit groove (8) and second limit groove (9) are mutually intersected.
4. A spoke and split drum connection according to claim 2, characterized in that the spoke (5) comprises:
the middle arc section (10) is embedded in the middle arc groove (7);
one end of the first connecting section (11) is connected with one end of the middle arc section (10) and embedded in the first limit groove (8), and the other end of the first connecting section is used for connecting the rim (6);
and one end of the second connecting section (12) is connected with the other end of the middle arc section (10) and embedded in the second limit groove (9), and the other end of the second connecting section is used for connecting the rim (6).
5. The connecting structure of spokes and split flower-drum according to claim 4, wherein the included angle between the first connecting section (11) and the second connecting section (12) is alpha, and alpha is more than or equal to 90 degrees and less than or equal to 150 degrees.
6. The connecting structure of spoke and split flower-drum according to claim 4, wherein,
the junction of the middle arc-shaped groove (7) and the first limit groove (8) is arranged in a tangential connection relationship, and the middle arc-shaped groove (7) and the first limit groove (8) are continuously and smoothly connected; the junction of the middle arc-shaped groove (7) and the second limit groove (9) is arranged in a tangential connection relationship, and the middle arc-shaped groove (7) and the second limit groove (9) are continuously and smoothly connected;
the junction of the first connecting section (11) and the middle arc-shaped section (10) is arranged in a tangential connection relationship, and the first connecting section (11) and the middle arc-shaped section (10) are continuously and smoothly connected; the junction of the second connecting section (12) and the middle arc-shaped section (10) is arranged in a tangential connection relationship, and the second connecting section (12) and the middle arc-shaped section (10) are connected smoothly.
7. The spoke and split hub connection structure of claim 1, wherein said rotation stopping structure comprises: a first non-circular rotation stopping surface (13) arranged on the outer circumferential surface of the hub body (2), and a second non-circular rotation stopping surface (14) correspondingly arranged on the inner circumferential surface of the spoke disk (3).
8. The spoke and split hub connection structure according to claim 7, wherein said first non-circular rotation stop surface (13) comprises at least one first flat surface (15), and said second non-circular rotation stop surface (14) comprises at least one second flat surface (16) correspondingly; the first straight surface (15) and the second straight surface (16) are parallel to the axis of the flower-drum body (2), or the first straight surface (15) and the second straight surface (16) are gradually far away from the axis of the flower-drum body (2) from the end part of the flower-drum body (2) to the middle part of the flower-drum body (2).
9. The spoke and split hub connection according to claim 7, wherein one of the first non-circular rotation stopping surface (13) and the second non-circular rotation stopping surface (14) comprises at least one concave arc surface (17), and the other comprises at least one convex arc surface (18).
10. The spoke and split flower-drum connecting structure according to claim 1, wherein the spoke (5) and the spoke disc (3) are fixed by bonding, and the flower-drum body (2) and the spoke disc (3) are fixed by bonding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321146402.3U CN219727734U (en) | 2023-05-12 | 2023-05-12 | Connection structure of spoke and split type flower-drum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321146402.3U CN219727734U (en) | 2023-05-12 | 2023-05-12 | Connection structure of spoke and split type flower-drum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219727734U true CN219727734U (en) | 2023-09-22 |
Family
ID=88027479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321146402.3U Active CN219727734U (en) | 2023-05-12 | 2023-05-12 | Connection structure of spoke and split type flower-drum |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219727734U (en) |
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2023
- 2023-05-12 CN CN202321146402.3U patent/CN219727734U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |