CN85106719A - Swing-arm gear speed changing device - Google Patents
Swing-arm gear speed changing device Download PDFInfo
- Publication number
- CN85106719A CN85106719A CN 85106719 CN85106719A CN85106719A CN 85106719 A CN85106719 A CN 85106719A CN 85106719 CN85106719 CN 85106719 CN 85106719 A CN85106719 A CN 85106719A CN 85106719 A CN85106719 A CN 85106719A
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- CN
- China
- Prior art keywords
- tooth bar
- speed
- rocker lever
- rocker
- shaft
- 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.)
- Pending
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Abstract
Swing-arm gear speed changing device belongs to mechanism's speed change transmission field.
Input shaft drives cam, by seesaw frame it is rotatablely moved and changes to-and-fro motion into, and rocker lever is passed to tooth bar with motion.The gear of tooth bar rubbing band ratchet drives output wheel train motion is spread out of.The gear of this mechanism is the change in location of the swinging mounting point of control rocker lever, and the effect stroke of the tooth bar motion of servo-actuated is changed, thereby has changed the rotating speed of output shaft.
Description
The invention belongs to mechanical speed change drive technology field.Be a kind of, realize that by regulating the rocker lever fulcrum gear is in conjunction with infinite variable speed drive mechanism with two tooth bar alternate reciprocating motion driven gear garden revolution of cam driven rocker lever domination.
Gear is described among the WO82/01406 " the variable gear ratio circle rolls the circulation speed changer " to some extent in conjunction with the stepless speed variator of transmission.
The objective of the invention is with diverse design of foregoing invention and diverse structure, that designs more simplifies, has only the part of the normal jointing type speed changer 1/3rd that partly circulates of foregoing invention than foregoing invention structure, and do not have some difficult working special-shaped of above-mentioned invention, fully with common conventional process and material processing, handle single handle and can realize the stepless raising speed of large speed ratio and the transmission device of deceleration.It can be widely used in the occasion that various machineries, vehicle etc. need infinitely variable speed transmission.
Concrete structure of the present invention and working principle accompanying drawings are as follows:
Fig. 1 is the front plan view,
Fig. 2 is side view.
Speed change gear as shown in the figure is by power shaft (19), cam (20), cam ring (21), seesaw frame (18); rocker lever (8); tooth bar (7); speed change wheel for inputting (2); ratchet-gear wheel (3); gear axle (4); gear wheel (5); output wheel (11); output shaft (22); fulcrum shaft (15); 14 main transmissions such as speed control rod (17) and speed change parts and tooth bar slipper bracket (1); rocker arm support (9); the reciprocating lever cover is sat (12); cover use of revenue to finance expense frame (10); axis body (23) is carried at the center; reciprocal slide bar (13); tooth bar bolt (6); back and forth 9 supports such as pivot (14) and handlebar (16) and associate member, totally 23 kinds of basic structural elements formations.
The course of work of this speed change gear is: power shaft (19) band moving cam (20) rotates cam ring (21) in, and then 180 ° of horizontal symmetrical are installed in the seesaw frame (18) of cam ring (21) both sides and the partly reciprocal slide bar (13) that stretches out moves back and forth with cam ring (21) left and right horizontal. Reciprocal pivot (14) on the seesaw frame (18) drives to be subjected to speed control rod (17) control in the groove and the fulcrum shaft (15) that moves up and down in vertically advancing of rocker arm support (9), and take it as fulcrum, rocker lever (8) is swung. Simultaneously, rocker lever (8) moves back and forth in the horizontal concrete chute of tooth bar slipper bracket (1) by tooth bar bolt (6) band carry-over bar (7). Because of tooth bar (7) and speed change wheel for inputting (2) engagement, thereby the reciprocating motion of tooth bar (7), drive speed change wheel for inputting (2) along de-rotation. Clockwise when moving, drive gear axle (4), the gear wheel (5) that ratchet (3) connects and rotate, and drive to output wheel (11), output shaft (22) by taking turns interior ratchet.
When speed change wheel for inputting (2) de-rotation, ratchet and ratchet (3) drop out of gear in the wheel and dally.
Because of about two seesaw frames (18) respectively drive a rocker lever (8) and to be that both are alternate with each other swing, this reestablishes diplomatic relations for to-and-fro motion toward that to drive up and down two tooth bars (7).Thereby mesh respectively by two tooth bars (7) up and down that to drive upper and lower two speed change output wheels (2) also be these suitable those contrary alternately suitable repeatedly, de-rotation.Like this, when last speed change output wheel (2) clockwise drive speed change transmission shaft (4) rotated, following speed change output wheel (2) reversed idle running; When speed change output wheel (2) clockwise drive speed change transmission shaft (4) rotated instantly, last speed change output wheel (2) reversed idle running again.Like this, output wheel (11), output shaft (22) just under the alternate rotation transmission of two speed change transmission shafts (4), rotate continuously.
The key that realizes the stepless change transmission is to regulate fulcrum shaft (15) and vertically enters position on the groove at rocker arm support (9), to change the length of rocker lever (8) arm of force.Be the ratio of changing lever fulcrum (15) the both sides arm of force, thereby change the stroke of tooth bar (7), speed change output wheel (2) is quickened or slow down and rotate.
When promoting handlebar (16), by speed control rod (17) fulcrum shaft (15) is moved to tooth bar slipper bracket (1) direction, then force arm prolongs, shortened by the arm of force, go up under the situation constant at seesaw frame (18) as reciprocal pivot (14) reciprocating stroke of point of application of force, then be subjected to the stroke of the tooth bar (7) that the arm of force drives by rocker lever (8), also because of rocker lever is subjected to the arm of force the dwindling of amplitude that swing, the rotating speed of speed change output gear also thereby lower.Thereby output shaft is slowed down.By speed control rod (17) fulcrum shaft (15) is moved when promoting handlebar to seesaw frame (18) direction, then the arm of force that is subjected to from fulcrum shaft (15) to force bearing point tooth bar bolt (6) prolongs, and the force arm from fulcrum shaft (15) to the reciprocal pivot of point of application of force (14) shortens, under the situation constant as reciprocal pivot (14) reciprocating stroke of point of application of force, then because of being subjected to the swing increase of amplitude of arm lever to strengthen the stroke of tooth bar (7), thereby make speed change output wheel (2) speedup rotate and drive to output shaft (22).Because of fulcrum shaft (15) can freely move up and down for no gear, be stepless change so it increases, subtracts speed change.
The present invention can be widely used in various lathes, vehicle and all need the machinery of stepless change transmission.
Claims (3)
1, rocker-type variable-speed device is characterized by input shaft and drives cam, rotatablely moving of input shaft is changed into the to-and-fro motion of seesaw frame by seesaw frame; Output wheel train is formed in the joining output wheel engagement of the speed change drive wheel of band ratchet and output shaft, and this train is rotated by rack drives; The to-and-fro motion of tooth bar is connected transmission by the rocker lever that connects tooth bar and seesaw frame; The speed change of this mechanism is to be achieved by the position that changes the relative fulcrum shaft of rocker lever.
2, according to the said rocker-type variable-speed device of claim 1, its feature can be that rocker lever, tooth bar and speed change drive wheel become the disymmetry configuration, so that the revolution of output wheel is unlikely to be interrupted.
3, the position adjustment according to claim 1 or 2 said device central bearing point axles changes, and its feature is made of slotted section, the slotted section of rocker arm support and the slotted section on the rocker lever that fulcrum shaft passes the handlebar of fluting in the middle of its bar portion that the center articulates respectively; Promote handlebar along its pivoted, fulcrum shaft is slided along above-mentioned three grooves, the change in location of fulcrum shaft has changed the fulcrum of rocker lever swing, causes the variation of reciprocal stroke of driven tooth bar and speed, reaches the rotating speed of the required on request various variations of output shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 85106719 CN85106719A (en) | 1986-09-07 | 1986-09-07 | Swing-arm gear speed changing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 85106719 CN85106719A (en) | 1986-09-07 | 1986-09-07 | Swing-arm gear speed changing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN85106719A true CN85106719A (en) | 1987-03-25 |
Family
ID=4795251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 85106719 Pending CN85106719A (en) | 1986-09-07 | 1986-09-07 | Swing-arm gear speed changing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN85106719A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102537266A (en) * | 2012-02-23 | 2012-07-04 | 大连海事大学 | Rocker-type continuously variable transmission |
| CN1730978B (en) * | 2005-08-05 | 2012-07-25 | 马平川 | Rotary displacement free speed changing device and rotary displacement free speed changing method |
| CN104373543A (en) * | 2014-10-23 | 2015-02-25 | 宁湘均 | Rotation power accelerating and boosting device |
| CN112587840A (en) * | 2020-12-29 | 2021-04-02 | 曹小爱 | Remote control fire-fighting robot |
-
1986
- 1986-09-07 CN CN 85106719 patent/CN85106719A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1730978B (en) * | 2005-08-05 | 2012-07-25 | 马平川 | Rotary displacement free speed changing device and rotary displacement free speed changing method |
| CN102537266A (en) * | 2012-02-23 | 2012-07-04 | 大连海事大学 | Rocker-type continuously variable transmission |
| CN104373543A (en) * | 2014-10-23 | 2015-02-25 | 宁湘均 | Rotation power accelerating and boosting device |
| CN112587840A (en) * | 2020-12-29 | 2021-04-02 | 曹小爱 | Remote control fire-fighting robot |
| CN112587840B (en) * | 2020-12-29 | 2021-11-30 | 湖南威平科技发展有限公司 | Remote control fire-fighting robot |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |