CN202657196U - Loss-resistant center shaft-chain plate structure for bicycle - Google Patents
Loss-resistant center shaft-chain plate structure for bicycle Download PDFInfo
- Publication number
- CN202657196U CN202657196U CN 201220208418 CN201220208418U CN202657196U CN 202657196 U CN202657196 U CN 202657196U CN 201220208418 CN201220208418 CN 201220208418 CN 201220208418 U CN201220208418 U CN 201220208418U CN 202657196 U CN202657196 U CN 202657196U
- Authority
- CN
- China
- Prior art keywords
- chain drum
- axis
- ring
- chain
- bearing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Gears, Cams (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Abstract
The utility model discloses a loss-resistant center shaft-chain plate structure for a bicycle. A center shaft-chain plate-crank structure is changed, and a right bearing is arranged on the right side of a sprocket of a chain plate, so that the sprocket of the chain plate is positioned between a left bearing and the right bearing; and a crank, the bottom surface of the chain plate and an inner circle of the right bearing are integrated, and a plate surface body of the chain plate forms a dish shape, so that a sprocket ring plate of the chain plate is separated from the bottom plane of the plate, is positioned on the left side of the bottom plane of the plate, and becomes a second leftwards-moved plane which is positioned on the left side of the right bearing, namely the sprocket is positioned between inner circles of the bearings of a center shaft in terms of configuration. Therefore, the chain plate is positioned between the left and right bearings to form a single force point-two side fulcrum lever mode.
Description
Technical field
The utility model relates to the axis of a kind of bicycle or Electrical Bicycle-chain drum system architecture.
Background technology
At present, the axis of known bicycle or Electrical Bicycle-chain drum system configuration be the axle fit structure place the middle part and chain drum places the system configuration on right side.This configuration mode is ripe and has formed fixing mechanic mode, so that already as the operative norm of quite a lot of maker.Yet, countless bicycles and Electrical Bicycle fault, as axis damage too early, bearing damages too early, too early damage of chain drum, chain-taking, flywheel damage etc., all is related to directly or indirectly this configuration mode.Because the lever pattern in two fulcrums that this configuration mode consists of-one-sided force is so that the backward pulling force of messenger chain almost all acts on the right side fulcrum---right side bearing place, like this, not only cause the stressed dynamics difference in two side bearing places of this configuration excessive, more fatal is stressed opposite direction.On the one hand, the result of wearing and tearing causes axle bowl or the outer ring of two side bearings to extend out round about, and to cause axis to be complied with left front-right backly turn to inclination; On the other hand, the backward pulling force of the right-hand end of messenger chain also causes the slope trend of the front right of chain drum-rear left steering simultaneously.These through constantly vicious circle, finally cause above-mentioned fault.The Electrical Bicycle of longer axis particularly, this situation is more serious.For fundamentally solving these failure problems, must cut off these cause and effect vicious circle chains, and the most thoroughly method of cut-out vicious circle chain changes axis-chain drum configuration mode exactly.
Summary of the invention
For root out the axis that causes bicycle and Electrical Bicycle fault-chain drum configuration drawback from the source, the utility model provides the wear-resistant method of a kind of bicycle middle shaft-chain drum configuration.It is by changing the structure of axis-chain drum-crank, and the right side bearing is disposed at the sprocket right side of chain drum, so that the chain drum tooth is between the two bearings of the left and right sides, consists of the lever pattern of a kind of single force-both sides fulcrum.With this, the backward pulling force of realizing messenger chain in the same way and be close to and act on fifty-fifty both sides fulcrum---the harmonious effect at left and right sides bearing place.
The technical scheme that its technical matters that solves the utility model adopts is: crank, chain drum bottom surface and right bearing inner ring are made for one, the card system of chain drum is become dish shape, the plane so that the chain ring gear disk detachment of chain drum is tried to get to the heart of a matter, be in the left side on the plane of trying to get to the heart of a matter, and become second plane that has moved to left, and so that this plane is in the left side of right bearing, namely the configuration on so that the chain drum tooth place between the two bearings inner ring of axis.Chain drum is by the chain drum abutting end of its axis mating holes and axis, under the four side trapezoidal faces extruding of the chain drum abutting end of the right side of clamp nut and axis, realizes flush fit with axis.By the nut of left bearing inner ring and cooperating of bearing left-hand thread section, realize tightening synchronously and cooperate left and right sides bearing in the left side.With this, so that the chain drum tooth is between the two bearings of the left and right sides, consist of the lever pattern of a kind of single force-both sides fulcrum, the backward pulling force of realizing messenger chain is in the same way and be close to and act on fifty-fifty both sides fulcrum---the harmonious effect at left and right sides bearing place.
Chain drum integral body is divided into chain drum bottom surface body, chain drum ring gear section, chain drum bowl ring portion, strengthens spoke muscle, axis mating holes and right bearing inner ring.Flat-disc-shape chain drum bottom surface body is in the middle part of chain drum integral body; Ring dish type chain drum ring gear section is in the outer ring of chain drum integral body, is in inferior outer ring between chain drum bottom surface body and the chain drum ring gear section as the chain drum bowl ring portion of fillet surface; The try to get to the heart of a matter reinforcement spoke muscle of face and chain drum ring gear section of connection chain is on the left concave surface of chain drum bowl ring portion; Square platform shape axis mating holes is in the center of chain drum integral body, and platform shape bottom surface is the large port of axis mating holes, and platform shape end face is the portlet of axis mating holes, and four side trapezoidal faces of truncated cone are the hole wall of axis mating holes; The periphery of axis mating holes portlet, namely the left surface at chain drum bottom surface body center is shaped with the right bearing inner ring.Chain drum is in the left surface of the right bottom surface of its chain drum bottom surface body and the right crank structure that merges into a single whole.The axis mating holes runs through the center of chain drum bottom surface body and the head end of right crank, and the right flank of its large port and right crank is in same plane, and the left surface of its portlet and axis mating holes is in same plane.
The beneficial effects of the utility model are: fundamentally solved because plurality of bicycles, the Electrical Bicycle failure problems that one-sided chain drum causes, cut off the cause and effect vicious circle chain of these faults, so that the axis of bicycle or Electrical Bicycle-chain drum system configuration is prolonged, durable.Whole configuration structure is simple simultaneously, and two side bearings, one side that in addition realizes tightens, fit system, so that parts use, dismounting is convenient; Whole configuration is easy to transform in existing structure, also is easy to normalisation and batch manufacturing.
Description of drawings
Below in conjunction with embodiment shown in the drawings the utility model is further specified.
Fig. 1 is an embodiment of the present utility model---the right side view of bicycle middle shaft-chain drum wear-resistant configuration structure.
Fig. 2 is that the A-A of the utility model embodiment configuration structure is to cutaway view.
Fig. 3 is the left side view of chain drum-crank structure.
Fig. 4 is that the B-B of chain drum-crank structure is to cutaway view.
Fig. 5 is the topology view of axis configuration.
Fig. 6 is the structural front view of axis.
Fig. 7 is the upward view of middle shaft structure.
In the utility model configuration structure view shown in the accompanying drawing 1 ~ 5: 1. chain drum bottom surface body, 2. chain drum ring gear section, 3. chain drum bowl ring portion, 4. right crank, 5. axis, 6. bearing sleeve, 7. strengthen spoke muscle, 8. axis mating holes, 9. right bearing inner ring, 10. right bearing ball, 11. the right bearing outer ring, 12. clamp nuts, 13. left bearing outer rings, 14. the left bearing ball, 15. left bearing inner rings.
In the middle shaft structure view shown in the accompanying drawing 5 ~ 7: 5.1. chain drum abutting end, 5.2. right-hand thread section, 5.3. left-hand thread section, the left crank abutting end of 5.4..
The specific embodiment
In the utility model configuration structure view shown in the accompanying drawing 1 ~ 4: chain drum integral body is divided into chain drum bottom surface body 1, chain drum ring gear section 2, chain drum bowl ring portion 3, strengthens spoke muscle 7, axis mating holes 8 and right bearing inner ring 9.Flat-disc-shape chain drum bottom surface body 1 is in the middle part of chain drum integral body; Ring dish type chain drum ring gear section 2 is in the outer ring of chain drum integral body, is in inferior outer ring between chain drum bottom surface body 1 and the chain drum ring gear section 2 as the chain drum bowl ring portion 3 of fillet surface; The try to get to the heart of a matter reinforcement spoke muscle 7 of face body 1 and chain drum ring gear section 2 of connection chain is on the left concave surface of chain drum bowl ring portion 3; Square platform shape axis mating holes 8 is in the center of chain drum integral body, and platform shape bottom surface is the large port of axis mating holes 8, and platform shape end face is the portlet of axis mating holes 8, and four side trapezoidal faces of truncated cone are the hole wall of axis mating holes 8; The periphery of axis mating holes 8 portlet, namely the left surface at chain drum bottom surface body 1 center is shaped with right bearing inner ring 9.Chain drum is in the left surface of the right bottom surface of its chain drum bottom surface body 1 and right crank 4 structure that merges into a single whole.Axis mating holes 8 runs through the center of chain drum bottom surface body 1 and the head end of right crank 4, and the right flank of its large port and right crank 4 is in same plane, and the left surface of its portlet and axis mating holes 8 is in same plane.
In the utility model configuration structure view shown in the accompanying drawing 1 ~ 7: chain drum forms dish shape structure by chain drum bottom surface body 1 and chain drum bowl ring portion 3, so that the plane of the chain drum ring gear section 2 ring disk detachment chain drum bottom surface bodies 1 of chain drum, be in the left side of chain drum bottom surface body 1, and become the second plane that has moved to left, namely in configuration so that chain drum ring gear section 2 ring dishes place between the right bearing inner ring 9 and left bearing inner ring 15 of axis 5.Chain drum is by the chain drum abutting end 5.1 of its axis mating holes 8 and axis 5, under the four side trapezoidal faces extruding of the right side of clamp nut 12 and chain drum abutting end 5.1, realizes flush fits with axis 5.Left and right two ends in bearing sleeve 6 inboards are shaped with respectively the notch of the left and right bearing of assembly, and fastening assembly has groove bowl-type left bearing outer ring 13 in the left end notch, and fastening assembly has groove bowl-type right bearing outer ring 11 in the right-hand member notch; In the 11 groove bowls of right bearing outer ring, be the right bearing ball 10 of " sand frame " with space-stop rack along the ring plain cloth; In the groove bowl of left bearing outer ring 13, be the left bearing ball 14 of " sand frame " with space-stop rack along the ring plain cloth; Left bearing outer ring 13, left bearing ball 14 and left bearing inner ring 15 consist of the left bearing of axis-chain drum configuration, and right bearing outer ring 11, right bearing ball 10 and right bearing inner ring 9 consist of the right bearing of axis-chain drum configuration.At the left and right two ends of axis 5, screw respectively left bearing inner ring 15, clamp nut 12.
In the topology view that the utility model embodiment configuration structure A-A shown in the accompanying drawing 2 disposes to the axis shown in cutaway view and the accompanying drawing 5: the screw car of clamp nut 12 has the derotation screw thread, and the right-hand thread section 5.2 of axis 5 also is the derotation screw thread; Clamp nut 12 tapped bore cooperate with axis 5 by right-hand thread section 5.2.
At the utility model embodiment configuration structure A-A shown in the accompanying drawing 2 in the middle shaft structure view shown in cutaway view and 5 ~ 7: axis 5 integral body are divided into chain drum abutting end 5.1, right-hand thread section 5.2, shaft section, left-hand thread section 5.3 and left crank abutting end 5.4.Chain drum abutting end 5.1 is square truncated cone, and the truncated cone bottom surface is the right side of axis 5; Right-hand thread section 5.2 is the derotation thread screw; The shaft section in stage casing is that diameter is less than the cylinder of right bearing inner ring 9 tapped bore internal diameters; The outside diameter of thread of left-hand thread section 5.3 is not more than the diameter of axostylus axostyle; Left crank abutting end 5.4 be diameter less than the cylinder of left bearing inner ring 15 tapped bore internal diameters, the cylinder side tangentially is milled with the cotter way for fastening left crank.
Claims (5)
1. the wear-resistant structure of a bicycle middle shaft-chain drum, it is characterized in that: crank, chain drum bottom surface and right bearing inner ring are made for one, the card system of chain drum is become dish shape, the plane so that the chain ring gear disk detachment of chain drum is tried to get to the heart of a matter, be in the left side on the plane of trying to get to the heart of a matter, and become the second plane that has moved to left, and so that this plane is in the left side of right bearing, namely in configuration so that the chain drum tooth place between the two bearings inner ring of axis; Chain drum is by the chain drum abutting end of its axis mating holes and axis, under the four side trapezoidal faces extruding of the chain drum abutting end of the right side of clamp nut and axis, realizes rigid fit with axis; By the nut of left bearing inner ring and cooperating of bearing left-hand thread section, realize tightening synchronously and cooperate left and right sides bearing in the left side; With this, so that the chain drum tooth is between the two bearings of the left and right sides, consist of the lever pattern of a kind of single force-both sides fulcrum, the backward pulling force of realizing messenger chain is in the same way and be close to and act on fifty-fifty both sides fulcrum---the harmonious effect at left and right sides bearing place.
2. the wear-resistant structure of bicycle middle shaft-chain drum according to claim 1 is characterized in that: chain drum integral body is divided into chain drum bottom surface body (1), chain drum ring gear section (2), chain drum bowl ring portion (3), strengthens spoke muscle (7), axis mating holes (8) and right bearing inner ring (9); Flat-disc-shape chain drum bottom surface body (1) is in the middle part of chain drum integral body; Ring dish type chain drum ring gear section (2) is in the outer ring of chain drum integral body, is in inferior outer ring between chain drum bottom surface body (1) and the chain drum ring gear section (2) as the chain drum bowl ring portion (3) of fillet surface; The try to get to the heart of a matter reinforcement spoke muscle (7) of face body (1) and chain drum ring gear section (2) of connection chain is on the left concave surface of chain drum bowl ring portion (3); Square platform shape axis mating holes (8) is in the center of chain drum integral body, and platform shape bottom surface is the large port of axis mating holes (8), and platform shape end face is the portlet of axis mating holes (8), and four side trapezoidal faces of truncated cone are the hole wall of axis mating holes (8); The periphery of axis mating holes (8) portlet, namely the left surface at chain drum bottom surface body (1) center is shaped with right bearing inner ring (9); Chain drum is in the left surface of the right bottom surface of its chain drum bottom surface body (1) and right crank (4) structure that merges into a single whole; Axis mating holes (8) runs through the center of chain drum bottom surface body (1) and the head end of right crank (4), and the right flank of its large port and right crank (4) is in same plane, and the left surface of its portlet and axis mating holes (8) is in same plane.
3. the wear-resistant structure of bicycle middle shaft-chain drum according to claim 1, it is characterized in that: chain drum forms dish shape structure by chain drum bottom surface body (1) and chain drum bowl ring portion (3), so that the plane of the chain drum ring gear section (2) of chain drum ring disk detachment chain drum bottom surface body (1), be in the left side of chain drum bottom surface body (1), and become the second plane that has moved to left, namely in configuration so that chain drum ring gear section (2) ring dish place between the right bearing inner ring (9) and left bearing inner ring (15) of axis (5); Chain drum is by the chain drum abutting end (5.1) of its axis mating holes (8) and axis (5), under the four side trapezoidal faces extruding of the right side of clamp nut (12) and chain drum abutting end (5.1), with axis (5) realization rigid fit; At the inboard left and right two ends of bearing sleeve (6), be shaped with respectively the notch of the left and right bearing of assembly, fastening assembly has groove bowl-type left bearing outer ring (13) in the left end notch, and fastening assembly has groove bowl-type right bearing outer ring (11) in the right-hand member notch; In the groove bowl of right bearing outer ring (11), be the right bearing ball (10) of " sand frame " with space-stop rack along the ring plain cloth; In the groove bowl of left bearing outer ring (13), be the left bearing ball (14) of " sand frame " with space-stop rack along the ring plain cloth; Left bearing outer ring (13), left bearing ball (14) and left bearing inner ring (15) consist of the left bearing of axis-chain drum configuration, and right bearing outer ring (11), right bearing ball (10) and right bearing inner ring (9) consist of the right bearing of axis-chain drum configuration; At the left and right two ends of axis (5), screw respectively left bearing inner ring (15), clamp nut (12).
4. according to claim 1 or the wear-resistant structure of bicycle middle shaft-chain drum claimed in claim 2, it is characterized in that: the screw car of clamp nut (12) has the derotation screw thread, and the right-hand thread section (5.2) of axis (5) also is the derotation screw thread; Clamp nut (12) tapped bore cooperates with axis (5) by right-hand thread section (5.2).
5. according to claim 1 or the wear-resistant structure of bicycle middle shaft-chain drum claimed in claim 2, it is characterized in that: axis (5) integral body is divided into chain drum abutting end (5.1), right-hand thread section (5.2), shaft section, left-hand thread section (5.3) and left crank abutting end (5.4); Chain drum abutting end (5.1) is square truncated cone, and the truncated cone bottom surface is the right side of axis (5); Right-hand thread section (5.2) is the derotation thread screw; The shaft section in stage casing is that diameter is less than the cylinder of right bearing inner ring (9) tapped bore internal diameter; The outside diameter of thread of left-hand thread section (5.3) is not more than the diameter of axostylus axostyle; Left crank abutting end (5.4) be diameter less than the cylinder of left bearing inner ring (15) tapped bore internal diameter, the cylinder side tangentially is milled with the cotter way for fastening left crank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220208418 CN202657196U (en) | 2012-05-10 | 2012-05-10 | Loss-resistant center shaft-chain plate structure for bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220208418 CN202657196U (en) | 2012-05-10 | 2012-05-10 | Loss-resistant center shaft-chain plate structure for bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202657196U true CN202657196U (en) | 2013-01-09 |
Family
ID=47452120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220208418 Expired - Fee Related CN202657196U (en) | 2012-05-10 | 2012-05-10 | Loss-resistant center shaft-chain plate structure for bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202657196U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104828201A (en) * | 2015-05-19 | 2015-08-12 | 天津市兴轮生产力促进有限公司 | Integrally formed bicycle chain wheel |
-
2012
- 2012-05-10 CN CN 201220208418 patent/CN202657196U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104828201A (en) * | 2015-05-19 | 2015-08-12 | 天津市兴轮生产力促进有限公司 | Integrally formed bicycle chain wheel |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103507559B (en) | Wheel ballast weight component | |
| US20160215866A1 (en) | Sprocket | |
| CN202657196U (en) | Loss-resistant center shaft-chain plate structure for bicycle | |
| WO2013076735A3 (en) | Polygonal hub for fully floating rear drive axle of a vehicle | |
| CN102336119B (en) | Bottom bracket-chain drum loss resistance arrangement method for bicycle | |
| CN102829171A (en) | Integrated planet carrier | |
| CN201646877U (en) | Automobile brake angle assembly | |
| CN205715318U (en) | Tricot machine warp beam is with dual fastening type anchor ear | |
| CN202123895U (en) | Wear-resistant system for middle axle of bicycle | |
| CN102166921B (en) | Collocation method of bicycle center shafting loss resistance | |
| CN204553492U (en) | Loader drive axle wheel edge retarder bearing lock nuts anti-loose structure | |
| US20100018345A1 (en) | Integrally cast bicycle chain transmission | |
| CN206297347U (en) | A kind of improved wheel spoke of structure | |
| KR200470501Y1 (en) | Chain gear with adapter | |
| CN204871444U (en) | Bicycle footboard | |
| CN202225991U (en) | Transmission device for bicycle | |
| CN101618749A (en) | Chain wheel structure | |
| CN201872898U (en) | Gear shifting lever of motorcycle | |
| CN203172834U (en) | Mounting structure of moped crank and pedal shaft | |
| CN209414328U (en) | A kind of high-strength bolt | |
| CN201335139Y (en) | Driving wheel of mowing machine | |
| CN202402529U (en) | Double-locking brake adjuster | |
| KR200447242Y1 (en) | Hub assembly for bicycle | |
| CN108189952B (en) | It can free assembled crank | |
| CN201777072U (en) | High-emission motorbicycle rear wheel hub |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130109 Termination date: 20130510 |