CN2459485Y - Stepless speed regulation gearing - Google Patents
Stepless speed regulation gearing Download PDFInfo
- Publication number
- CN2459485Y CN2459485Y CN 00265642 CN00265642U CN2459485Y CN 2459485 Y CN2459485 Y CN 2459485Y CN 00265642 CN00265642 CN 00265642 CN 00265642 U CN00265642 U CN 00265642U CN 2459485 Y CN2459485 Y CN 2459485Y
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- CN
- China
- Prior art keywords
- flat thread
- gearing
- disc
- driving
- sprocket
- 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
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Abstract
The utility model discloses a stepless speed regulation gearing composed of a driven chain wheel (1), a chain (2), a driving chain wheel (3), a tension wheel (4) and a speed regulating brake block (5), wherein the driving chain wheel is composed of a plane thread disc (6), a check ring (7), plane thread slide blocks (8), small chain wheels (9) and a driving gearing disc (10). The plane thread disc is fixed on a central shaft of the driving gearing disc through the check ring, sliding chutes (13) are uniformly distributed on the circumference of the driving gearing disc, and each of the sliding chutes is arranged inside with a plane thread slide block and a small chain wheel. The utility model has the advantages of peculiar idea, simple structure, convenient and flexible speed regulation, and smooth gearing. Speed regulation is realized by changing the radii of a plurality of small chain wheels which are arranged on the circumference of the driving disc, and a gearing pair of the small chain wheels is designed as a one-way friction type overrunning clutch, so that no shock and noise exist, and active conscious speed change can be realized.
Description
The utility model belongs to the transmission device technical field, and what relate generally to is a kind of stepless speed regulating drive device.
At present, all kinds of speed governing rickshaws of selling on the market, mostly be step speed regulation, generally be to arrange in pairs or groups by the sprocket wheel that adopts different-diameter to realize step speed regulation, because chain often appears falling in this arrangements for speed regulation in the speed governing operating process, jump chain and chain jamming phenomenon, thereby its speed governing is difficult for realizing, and influence the working life of sprocket wheel and chain, for this reason, the stepless speed regulation scheme that has proposed has solved step speed regulation preferably and has easily fallen chain, jumps the drawback of chain and chain jamming, but still has problems such as complex structure, assembling is difficult, transmission stability is poor, noise is big.
The purpose of this utility model i.e. generation thus, proposes a kind of stepless speed regulating drive device, and not only structural design is simple for this transmission device, the manufacturing is easy, and speed governing stable drive, nothing impact and voice.
For achieving the above object, the utility model is achieved through the following technical solutions: it is mainly by sprocket for main drive, formed by movable sprocket, Idle wheel and chain, described drive sprocket is made of flat thread dish, speed governing brake slipper, back-up ring, active drive plate, flat thread slide block and minor sprocket, the flat thread dish is fixed on the central shaft of active drive plate by back-up ring, initiatively the circumference uniform distribution of drive plate is provided with chute, be respectively equipped with flat thread slide block and minor sprocket in each chute, the screw thread of flat thread slide block all with the flat thread dish on thread engagement; Minor sprocket is arranged on the flat thread slide block, and the speed governing brake slipper that is used to brake the flat thread dish is arranged on the cam hub of flat thread dish.
The utility model design is unique, simple in structure, manufacture easily, because its speed change is to realize by some minor sprockets place radius size that change is arranged on the active drive plate circumference, and minor sprocket is the unidirectional friction overdrive clutch of planetary pinion, like this, regardless of minor sprocket place radial location, all can enter engagement smoothly with chain also drags chain is unidirectional at any time, chain drives the minor sprocket gear ring and also can surmount in the same way the free wheel device central shaft at any time, when having avoided the inserted type free wheel device to drag to the requirement of Internal and external cycle angle position.Therefore, this device speed governing is convenient, flexible, stable and reliable for performance, and stable drive does not exist and impacts and noise, can realize the speed change that makes things convenient for of active consciousness.These arrangements for speed regulation also can be used for other in the less demanding mechanical transmission of transmission accuracy.
The utility model has following accompanying drawing
Accompanying drawing 1 is the utility model structural representation
Accompanying drawing 2 is the utility model drive sprocket structural representation
Accompanying drawing 3 is the utility model accompanying drawing 2A-A sectional view
Accompanying drawing 4 is the structural representation of the utility model structure minor sprocket
Accompanying drawing 5 is the structural representation of the utility model flat thread slide block
Accompanying drawing 6 is the utility model accompanying drawing 5A-A sectional view
Accompanying drawing 7 is the initiatively structural representation of drive plate of the utility model
Accompanying drawing 8 is the utility model accompanying drawing 7A-A sectional view
Accompanying drawing 9 is the structural representation of the utility model flat thread dish
Accompanying drawing 10 is the utility model accompanying drawing 9A-A sectional view
In conjunction with the accompanying drawings, it is as follows to provide embodiment of the present utility model:
As shown in Figure 1: present embodiment mainly by being formed by movable sprocket (flywheel) 1, chain 2, drive sprocket 3 and Idle wheel 4, is connected by chain 2 by movable sprocket 1, drive sprocket 3 and Idle wheel 4, and Idle wheel 4 plays tensioning and deposit chain 2.Described drive sprocket 3 (shown in Fig. 2-3) is by flat thread dish 6, back-up ring 7, flat thread slide block 8, minor sprocket 9 and active drive plate 10 constitute, the end face of flat thread dish 6 (shown in Fig. 9-10) is a worm structure, it is installed in by back-up ring 7 on the central shaft of biography dish 10 initiatively initiatively that the circumference uniform distribution of drive plate 10 (shown in Fig. 7-8) is provided with chute 13, and present embodiment is six.Be respectively arranged with flat thread slide block 8 and minor sprocket 9 in each chute 13, one side of flat thread slide block 8 (as shown in Figure 4) is a worm structure, opposite side is provided with spindle nose 14, this spindle nose 14 also is provided with key way 15, flat thread slide block 8 screwed sides all with flat thread dish 6 on thread engagement.What minor sprocket 9 (as shown in Figure 3) center revolute pair adopted is the unidirectional friction clutcch of planetary pinion, and its revolute pair gear ring 11 is unidirectional friction overdrive clutch (known technology) with inner axis of heart 12 structures.Minor sprocket 9 is separately positioned on the spindle nose of flat thread slide block 8, and it is fixedly connected by keyway, its effect one is that flat thread slide block 8 is fixed in the chute 13 of active drive plate 10, the 2nd, promotion by flat thread dish 6 and flat thread slide block 8 inwardly or to the outer chute move simultaneously, change the size of the radius on the place drive sprocket 3, realize the stepless speed regulation of active consciousness.The speed governing brake slipper 5 that is used to brake the flat thread dish is arranged on the cam hub of flat thread dish, the cam hub of itself and flat thread dish has certain clearance, when the need speed change, by 6 brakings of 5 pairs of flat thread dishes of speed governing brake slipper, make flat thread dish 6 and initiatively drive plate 10 relative movement, some flat thread slide blocks 8 inside or inside and outside slip simultaneously in the chute on active drive plate 10 13 under the promotion of flat thread dish 6 with flat thread dish 6 thread engagement, changed the size of some minor sprockets place radius of fixed connection with it, when realizing the normal transmission of speed governing, flat thread dish 6 rotates radially to slide to be changed in the chute of some flat thread slide blocks 8 on active biography dish 10 with active drive plate 10 and recurs variation, be reflected on the drive sprocket 3 all length of sides chain length of the engagement of some minor sprockets (promptly with) and also be the continuity variation, and for chain-driven, it changes requirement and is the integral multiple of chain number, promptly discontinuous variation.For making some minor sprockets and chain engages on the drive sprocket circumference smooth, the continuity that also makes chain not hinder several minor sprocket place radiuses changes, and the transmission of minor sprocket is designed to unidirectional friction overdrive clutch.Like this,, all can mesh smoothly and can surmount simultaneously the free wheel device center at any time with chain regardless of minor sprocket place radial location, when having avoided the inserted type free wheel device to drag to the requirement of Internal and external cycle angle position.
Claims (3)
1, a kind of stepless speed regulating drive device, comprise by movable sprocket (1), chain (2), drive sprocket (3), Idle wheel (4) and speed governing brake slipper (5) and it is characterized in that: described drive sprocket (3) is made up of flat thread dish (6), back-up ring (7), flat thread slide block (8), minor sprocket (9) and active drive plate (10), and flat thread dish (6) is fixed on the central shaft of active drive plate (10) by back-up ring (7); Initiatively the circumference uniform distribution of drive plate (10) is provided with chute (13), be respectively arranged with flat thread slide block (8) and minor sprocket (9) in each chute (13), flank of thread on the flat thread slide block (8) all with flat thread dish (6) on flank of thread engagement, minor sprocket (9) is separately fixed on the flat thread slide block (8).
2, stepless speed regulating drive device according to claim 1 is characterized in that: described minor sprocket (9) is unidirectional friction overdrive clutch.
3, stepless speed regulating drive device according to claim 1 is characterized in that: described flat thread slide block (8) is provided with the spindle nose (14) of band keyway (15), and minor sprocket (9) is fixedly connected on this spindle nose (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00265642 CN2459485Y (en) | 2000-12-29 | 2000-12-29 | Stepless speed regulation gearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00265642 CN2459485Y (en) | 2000-12-29 | 2000-12-29 | Stepless speed regulation gearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2459485Y true CN2459485Y (en) | 2001-11-14 |
Family
ID=33619974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00265642 Expired - Fee Related CN2459485Y (en) | 2000-12-29 | 2000-12-29 | Stepless speed regulation gearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2459485Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103062370A (en) * | 2013-01-08 | 2013-04-24 | 管继尧 | Driving wheel in stepless speed change |
| CN104343914A (en) * | 2014-09-16 | 2015-02-11 | 谢瑞成 | Variable-speed transmission mechanism for relay transmission of variable-diameter gears |
| CN105905229A (en) * | 2016-06-29 | 2016-08-31 | 麦志成 | Stepless speed changing bicycle |
| CN107858758A (en) * | 2017-12-07 | 2018-03-30 | 中国热带农业科学院农业机械研究所 | A kind of sprocket transmission device that numb machine regulation draw ratio is managed for sisal hemp |
| CN111284630A (en) * | 2018-12-10 | 2020-06-16 | 魏永强 | Follow-up adjusting device of novel chuck type continuously variable transmission of bicycle |
| CN112499125A (en) * | 2021-02-09 | 2021-03-16 | 万鑫精工(湖南)股份有限公司 | Descending loading conveying device with speed reducer |
-
2000
- 2000-12-29 CN CN 00265642 patent/CN2459485Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103062370A (en) * | 2013-01-08 | 2013-04-24 | 管继尧 | Driving wheel in stepless speed change |
| CN104343914A (en) * | 2014-09-16 | 2015-02-11 | 谢瑞成 | Variable-speed transmission mechanism for relay transmission of variable-diameter gears |
| CN104343914B (en) * | 2014-09-16 | 2017-09-26 | 谢瑞成 | A kind of infinitely variable speed gearing of reducing gear relay transmission |
| CN105905229A (en) * | 2016-06-29 | 2016-08-31 | 麦志成 | Stepless speed changing bicycle |
| CN107858758A (en) * | 2017-12-07 | 2018-03-30 | 中国热带农业科学院农业机械研究所 | A kind of sprocket transmission device that numb machine regulation draw ratio is managed for sisal hemp |
| CN111284630A (en) * | 2018-12-10 | 2020-06-16 | 魏永强 | Follow-up adjusting device of novel chuck type continuously variable transmission of bicycle |
| CN112499125A (en) * | 2021-02-09 | 2021-03-16 | 万鑫精工(湖南)股份有限公司 | Descending loading conveying device with speed reducer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |