CN210027767U - Bowl group of bicycle axle core system - Google Patents
Bowl group of bicycle axle core system Download PDFInfo
- Publication number
- CN210027767U CN210027767U CN201920461637.9U CN201920461637U CN210027767U CN 210027767 U CN210027767 U CN 210027767U CN 201920461637 U CN201920461637 U CN 201920461637U CN 210027767 U CN210027767 U CN 210027767U
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- China
- Prior art keywords
- bowl group
- bowl
- group main
- bearing
- main body
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- Withdrawn - After Issue
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- 238000000034 method Methods 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 abstract description 4
- 238000005096 rolling process Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 230000006872 improvement Effects 0.000 description 8
- 230000006378 damage Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 1
Images
Abstract
A bowl group of a bicycle shaft core system comprises a middle shaft, a middle pipe arranged outside the middle shaft, bearings arranged on two sides of the middle pipe and a bowl group arranged outside the bearings, wherein the bowl group comprises a bowl group main body and an edge cover, the bowl group main body and the bearings are in clearance fit, threads are machined on the outer wall of the bowl group main body, when the shaft core system is installed on a bicycle frame, the bowl group main body is clamped with the outer circle of the bearings through radial deformation to realize interference assembly, an annular sunk groove is machined in the middle of the edge cover, and an outer clamping groove and an inner clamping groove are also machined on the edge cover; the bowl group main part and the bearing are clearance fit, and the bearing is packed into the bowl group main part and is very laborsaving, and when axle core system revolved on the frame, the bowl group main part realized the interference through radial deformation with the bearing, and the bearing plays rolling effect, and the limit cover middle part processing has heavy groove for put the anti-lip formula sealing washer, and limit cover processing outer draw-in groove and interior draw-in groove act on outer draw-in groove or interior draw-in groove through specialized tool, make things convenient for the limit cover to close soon on the frame.
Description
Technical Field
The utility model relates to a bowl group of bicycle axle core system.
Background
Fig. 4 shows a bicycle axle core system, which comprises a middle axle, a middle tube sleeved outside the middle axle, bearings positioned at two sides of the middle tube, and a bowl group positioned outside the bearings, wherein the bowl group is screwed on a frame through threads processed on the bowl group.
SUMMERY OF THE UTILITY MODEL
To the weak point that exists in the above-mentioned problem, the utility model provides a bowl group of bicycle axle core system.
In order to achieve the above object, the utility model provides a bowl group of bicycle axle core system, axle core system includes a axis, arranges in the outer well pipe of axis, be located the bearing of well pipe both sides, be located the bowl group in the bearing outside, bowl group includes the bowl group main part of thin wall form and is located the side cover of bowl group main part one side, bowl group main part with the bearing is clearance fit, it has the screw thread to process on the outer wall of bowl group main part, when axle core system installation is on the bicycle frame, bowl group main part through radial deformation with the excircle chucking of bearing realizes interference fit, the middle part processing annular heavy groove of side cover, still process outer draw-in groove, interior draw-in groove on the side cover.
As a further improvement of the utility model, the size of the excircle of bearing is 30 mm.
As a further improvement of the utility model, the size of the internal face of the bowl group main body is 30.2mm, and the machining precision is plus-minus 0.02 mm.
As a further improvement of the utility model, the size of the outer wall surface of the bowl group main body is 1.37 inches, the imperial thread is processed on the outer wall surface, and the number of the threads in 1 inch is 24.
As a further improvement of the utility model, the included angle between the threads of the thread is 55 degrees.
As a further improvement of the utility model, the outer draw-in groove is totally eight equipartition on the outer circumference of sideshield, the outer draw-in groove does not run through the sideshield.
As a further improvement of the utility model, the inner clamping groove is twenty in total and is evenly distributed on the inner circumference of the side cover.
As a further improvement of the utility model, the outer tooth of the screw thread on the bowl group main part has a 1 degree tapering, the hole of the bowl group main part has a chamfer that the radius is 1 mm.
The utility model has the advantages that:
1. the bowl group main body and the bearing are assembled in a clearance mode, the bearing is arranged in the bowl group main body in a labor-saving mode, when the shaft core system is screwed on the bicycle frame, when the external threads of the bowl group main body are screwed into the internal threads of the bicycle frame, the thin wall of the bowl group main body is deformed under the action of oblique thrust between the threads, the bowl group main body is in interference fit with the outer ring of the bearing through radial deformation, the outer diameter of the bearing is prevented from being removed when the bearing works, and the bearing plays a rolling role;
2. the middle part of the side cover is provided with a sink groove for placing the reverse lip type sealing ring, so that water and other impurities can be effectively prevented from entering the shaft core, and the good working environment of the bearing is ensured;
3. the side cover is provided with the outer clamping groove and the inner clamping groove, and acts on the outer clamping groove or the inner clamping groove through different special tools, so that the side cover is conveniently screwed on the frame, and the universality is further improved;
4. the outer clamping groove does not penetrate through the side cover, and the special tool cannot damage the threads of the bowl group main body in the process of screwing the bowl group through the outer clamping groove.
5. The inner hole of the bowl group main body is processed with a chamfer, so that the stress concentration is effectively avoided, and the outer teeth of the threads of the bowl group main body are processed with taper, so that the bowl group can be conveniently screwed on the bicycle frame.
Drawings
FIG. 1 is a perspective view of a bowl group of a bicycle spindle core system of the present invention;
FIG. 2 is a side view of a bowl cluster;
FIG. 3 is a right side view of FIG. 2;
FIG. 4 is an assembled schematic view of the spindle system;
FIG. 5 is an exploded view of FIG. 4;
FIG. 6 is an enlarged view of position A of FIG. 2;
fig. 7 is an enlarged view of the position B in fig. 6.
In the figure: 1. a bowl group; 11. a bowl group main body; 111. external teeth; 112. chamfering; 12. a side cover; 121. sinking a groove; 122. an inner clamping groove; 123. an outer clamping groove; 2. a bearing; 3. a middle tube; 4. a middle shaft.
Detailed Description
As shown in fig. 1, the bowl group of the bicycle axle core system according to the embodiment of the present invention includes a middle axle 4, a middle tube 3 disposed outside the middle axle 4, bearings 2 disposed at two sides of the middle tube 3, and a bowl group 1 disposed outside the bearings 2 (see fig. 4 and 5); the bowl group 1 comprises a thin-wall bowl group main body 11 and a side cover 12 positioned on one side of the bowl group main body 11, the bowl group main body 11 is in clearance fit with the bearing 2, threads are processed on the outer wall of the bowl group main body 11, when the shaft core system is installed on a bicycle frame, the bowl group main body 11 is clamped with the outer circle of the bearing 2 through radial deformation to realize interference assembly, an annular sunk groove 121 is processed in the middle of the side cover 12, and an outer clamping groove 123 and an inner clamping groove 122 are further processed on the side cover 12; the size of the outer circle of the bearing 2 is 30mm, the size of the inner wall surface of the bowl group main body 11 is 30.2mm, the machining precision is plus or minus 0.02mm, the size of the outer wall surface of the bowl group main body 11 is 1.37 inches, the outer wall surface is provided with English threads, the number of the threads in 1 inch is 24, included angles among threads of the threads is 55 degrees, eight outer clamping grooves 123 are uniformly distributed on the outer circumference of the side cover 12, the outer clamping grooves 123 do not penetrate through the side cover 12, twenty inner clamping grooves 122 are uniformly distributed on the inner circumference of the side cover 12; the external thread 111 of the thread on the bowl set body 11 has a 1 degree taper, and the inner bore of the bowl set body 11 has a chamfer 112 with a radius of 1mm (see fig. 6, 7).
The bowl group main body and the bearing are assembled in a clearance mode, the bearing is arranged in the bowl group main body in a labor-saving mode, when the shaft core system is screwed on the bicycle frame, when the external threads of the bowl group main body are screwed into the internal threads of the bicycle frame, the thin wall of the bowl group main body is deformed under the action of oblique thrust between the threads, the bowl group main body is in interference fit with the outer ring of the bearing through radial deformation, the outer diameter of the bearing is prevented from being removed when the bearing works, and the bearing plays a rolling role; the middle part of the side cover is provided with a sink groove for placing the reverse lip type sealing ring, so that water and other impurities can be effectively prevented from entering the shaft core, and the good working environment of the bearing is ensured; the side cover is provided with the outer clamping groove and the inner clamping groove, and acts on the outer clamping groove or the inner clamping groove through different special tools, so that the side cover is conveniently screwed on the frame, and the universality is further improved; the outer clamping groove does not penetrate through the side cover, and the special tool cannot damage the threads of the bowl group main body in the process of screwing the bowl group through the outer clamping groove.
The hole processing chamfer of the main part is organized to the bowl, has effectively avoided the concentration of stress, and when the external screw thread screw in of the main part is organized to the frame internal thread department of bicycle simultaneously, the thin wall of the main part is organized to the bowl warp, and the hole passes through the fillet transition, and this position is difficult for taking place to warp, and is firmer and durable behind the bearing installation. The outer teeth of the threads of the bowl group main body are processed with taper, so that the bowl group can be conveniently screwed on a bicycle frame, and meanwhile, the size of the outer teeth of the threads is reduced, and the screwing of the threads is facilitated.
When in specific use, the utility model is described with the attached drawings for the convenience of understanding;
the size of the inner wall surface of the bowl group main body 11 is 30.2mm, the outer wall surface of the bowl group main body 11 is larger than the size of the outer circle of the bearing 2 by 30mm, the bearing can be easily installed in the bowl group main body in a clearance fit mode, the size of the outer wall surface of the bowl group main body 11 is 1.37 inches (34.798mm), the maximum thickness of the bowl group main body is less than 2.5mm, the bowl group main body is flaky and easy to deform, when the bowl group main body is screwed on a frame through threads, internal threads on the frame and external threads of the bowl group main body are extruded and deformed mutually, the bowl group main body is radially deformed and tightly clamped with the outer circle of the bearing, the interference fit of the bowl group main body and;
the assembly drawing of axle core system refers to fig. 4, in the axle core system, the effect of bowl group lies in realizing whole axle core with the frame fixedly, guarantee that the axis can relative free rotation, draw-in groove in the side cover processing of bowl group, the outer draw-in groove, can realize closing soon of bowl group with two kinds of corresponding supporting instruments, the commonality is good, the annular heavy groove of side cover middle part processing, can be used to put the lip formula sealing washer of turning over, be used for placing inside water and debris entering axle core, the outer draw-in groove does not run through the side cover, the destruction that the axle core inner structure received the external world has also effectively been avoided.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a bowl group of bicycle axle core system, the axle core system include a axis (4), arrange in well pipe (3) outside axis (4), be located bearing (2) of well pipe (3) both sides, be located bowl group (1) in the bearing (2) outside, its characterized in that: bowl group (1) includes bowl group main part (11) of thin wall form and is located the side cover (12) of bowl group main part (11) one side, bowl group main part (11) with bearing (2) are clearance fit, it is threaded to process on the outer wall of bowl group main part (11), when axle core system installation is on the bicycle frame, bowl group main part (11) through radial deformation with the excircle chucking of bearing (2) realizes interference fit, an annular heavy groove (121) of middle part processing of side cover (12), still process outer draw-in groove (123), interior draw-in groove (122) on side cover (12).
2. The bowl group of a bicycle hub system as set forth in claim 1, wherein: the size of the excircle of the bearing (2) is 30 mm.
3. The bowl group of a bicycle hub system as set forth in claim 1, wherein: the size of the inner wall surface of the bowl group main body (11) is 30.2mm, and the processing precision is plus or minus 0.02 mm.
4. The bowl group of a bicycle hub system according to claim 3, wherein: the size of the outer wall surface of the bowl group main body (11) is 1.37 inches, imperial threads are machined on the outer wall surface, and the number of the threads in 1 inch is 24.
5. The bowl set of a bicycle hub system as set forth in claim 4, wherein: the included angle between the threads of the threads is 55 degrees.
6. A bicycle axle center system bowl set according to any one of claims 1 to 5, characterized in that: the number of the outer clamping grooves (123) is eight, the outer circumference of the side cover (12) is uniformly distributed, and the outer clamping grooves (123) do not penetrate through the side cover (12).
7. A bicycle axle center system bowl set according to any one of claims 1 to 5, characterized in that: twenty inner clamping grooves (122) are uniformly distributed on the inner circumference of the side cover (12).
8. A bicycle axle center system bowl set according to any one of claims 1 to 5, characterized in that: the external thread (111) of the thread on the bowl group main body (11) is provided with 1 degree of taper, and the inner hole of the bowl group main body (11) is provided with a chamfer (112) with the radius of 1 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920461637.9U CN210027767U (en) | 2019-04-08 | 2019-04-08 | Bowl group of bicycle axle core system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920461637.9U CN210027767U (en) | 2019-04-08 | 2019-04-08 | Bowl group of bicycle axle core system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210027767U true CN210027767U (en) | 2020-02-07 |
Family
ID=69358196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920461637.9U Withdrawn - After Issue CN210027767U (en) | 2019-04-08 | 2019-04-08 | Bowl group of bicycle axle core system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210027767U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109895919A (en) * | 2019-04-08 | 2019-06-18 | 慈溪市肯力中轴有限公司 | A kind of bowl group of axle for bicycle core system |
-
2019
- 2019-04-08 CN CN201920461637.9U patent/CN210027767U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109895919A (en) * | 2019-04-08 | 2019-06-18 | 慈溪市肯力中轴有限公司 | A kind of bowl group of axle for bicycle core system |
| CN109895919B (en) * | 2019-04-08 | 2024-04-05 | 慈溪市肯力中轴有限公司 | Bowl group of bicycle axle core system |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20200207 Effective date of abandoning: 20240405 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20200207 Effective date of abandoning: 20240405 |