CN1061745C - Multi-purpose bidirectional speed changer - Google Patents
Multi-purpose bidirectional speed changer Download PDFInfo
- Publication number
- CN1061745C CN1061745C CN96115556A CN96115556A CN1061745C CN 1061745 C CN1061745 C CN 1061745C CN 96115556 A CN96115556 A CN 96115556A CN 96115556 A CN96115556 A CN 96115556A CN 1061745 C CN1061745 C CN 1061745C
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- speed changer
- ratchet
- bearer ring
- wheel
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Abstract
The present invention relates to a multi-purpose bidirectional speed changer composed of an outer ring, a bearing ring, a star wheel, a screw gear, a flat gear, a core tooth, an inner ratchet pawl, an outer ratchet pawl and a ratchet seat, wherein a chain wheel is fixed to the outer ring through a screw thread or a screw hole; the star wheel is engaged with the inner tooth and the core tooth of the outer ring; the outer ratchet pawl is fixed to a ratchet shaft of the outer ratchet seat; the flat gear, the core tooth and the screw gear are fixedly combined. The speed changer can be arranged on a middle shaft and be used as a middle shaft speed changer, and the speed changer can also be arranged on a rear shaft and be used as a fly wheel speed changer, and a bicycle can realize speed changing operation in the same direction when a crank rotates in positive direction and reverse direction. The speed changer can be used for devices of various bicycles, vehicles, body building devices, tidal power stations, etc.
Description
The present invention relates to a kind of multiple-speed gear-box, specifically provide a kind of two-way multiple-speed gear-box that is suitable for various bicycles or wheeled vehicle use.
The axis and the flywheel of common bicycle (as bicycle) do not have speed changing function.For realizing the bicycle speed change, need to increase speed change gear, for example, the sprocket piece that 2～5 different sizes are housed on the axis of bicycle is formed speed change gear.This axis speed change is by changing the size of the sprocket wheel that drives chain, carrying out speed change.When the axis speed change, in driven off by shaft direction constant (unidirectional).The present inventor once designed a kind of two-way two stage speed change flywheel (CN85202575) and a kind of bidirectional three-step gear shift flywheel (CN90105171.3) in early days.This flywheel, it can also play chronotropic action except the gearing that plays freewheel.Simultaneously, because the positive and negative bidirectional-movement of flywheel, all can make bicycle be subjected to forward power, therefore, this gear shift flywheel not only can be used as speed changer, is installed on the common bicycle, can be used as sports apparatus (fitness equipment) again and uses.In addition, the present inventor provides a kind of speed changer that uses (CN112375/A) again on axis.This speed change gear is not only simple in structure, also can two-wayly carry out speed change.But above-mentioned bidirectional speed changer is using and is installing also slightly sense inconvenience.Simultaneously, the purposes of speed changer is single, and the bi-directional variable speed flywheel can be used in makes the flywheel multi-speed device on the rear axle, makes the axis transmission action and the axis bidirectional speed changer can only be used for axis.
The purpose of this invention is to provide a kind of multi-purpose bidirectional speed changer, this speed changer both can be used for shaft transmission in the axis work, also can be used for rear axle and replaced flywheel to make the flywheel multi-speed device, and also more convenient and safety is installed and used to the speed changer of this structure simultaneously.
Multi-purpose bidirectional speed changer of the present invention, it is by outer shroud, and bearer ring, star-wheel, silk retaining, flat retaining, core tooth and ratchet are formed, and circle has two Zhu Dao and internal tooth in the outer shroud, bearer ring is outer, a Zhu Dao is respectively arranged on the interior circle, the outside has ratchet, inboard to adorn little axle, ratchet and star-wheel in being equipped with respectively on the little axle, 2,4,6 or 8 little axles can be equipped with in the bearer ring inboard, on the little axle 1,2,3 or 4 interior ratchet 4 and star-wheel are housed respectively, flat retaining, core tooth and silk shelves are fixed on the axle.The invention is characterized in and be provided with a pearl road axle on the bearer ring cylindrical in addition, the carrier ring outside is added with outer pawl seat with on bearer ring and the silk door, in the outer pawl seat circle outside relatively the Zhu Dao on the bearer ring cylindrical be provided with Yi Zhudao, by these two Zhu Dao with place the steel ball in the pearl road that outer pawl seat is installed on the bearer ring.Have U type long slab in the outer pawl seat outside, the inboard is provided with the sour jujube axle, ratchet outside on the sour jujube axle, installing, outer ratchet is relative with bearer ring outside ratchet, when bearer ring clockwise (forward) rotated, outer ratchet slided along ratchet, and when bearer ring counterclockwise (oppositely) rotates, outer ratchet will be braked ratchet, make bearer ring can't realize being rotated counterclockwise.Outer ratchet has backguy, and when ratchet broke away from ratchet outside the pulling backguy makes, bearer ring can be free suitable, rotates counterclockwise.The U type clamp that the outer pawl seat outside has is to be used for the outer pawl seat that is installed when speed changer is installed, and makes it to be fixed on the car body.Other structure of multi-purpose bidirectional speed changer of the present invention and the structural similarity of the middle shaft transmission that the present inventor provides in early days.Below in conjunction with drawings and Examples technology of the present invention is given to illustrate in further detail.
Accompanying drawing 1 is looked the part section structural drawing for master of the present invention;
Accompanying drawing 3 is installed on the axis structural drawing as the axis bidirectional speed changer for the present invention;
Accompanying drawing 4 is installed on the rear axle structural drawing as the flywheel bidirectional speed changer for the present invention.
1. outer shrouds in the accompanying drawing; 2. bearer ring; 3. silk keeps off; 4. interior ratchet; 5. core tooth; 6. flat retaining; 7. outer ratchet; 8. star-wheel; 9. little axle; 10. outer pawl seat; 11. sour jujube axle.A is axis and crank; B is for driving the sprocket wheel of chain, and C is the middle joint on the vehicle frame; D is a rear axle, and E is the back chain stay on the vehicle frame.
By accompanying drawing 1,2, in the multi-purpose bidirectional speed changer of the present invention, bearer ring 2 is a side with silk retaining 3, flat retaining 6 is equipped with star-wheel 8 and interior ratchet 4 for opposite side supporting outer shroud 1 between the internal tooth of outer shroud 1 and the core tooth 5, even for making active force, and it is simple in structure, it is 3 in addition that star-wheel 8 and interior ratchet 4 and quantity are preferably divided, and is installed on the bearer ring 2 core tooth 5 by little axle 9 symmetries, flat retaining 6, silk retaining 3 will be fastened on the axle respectively.Outer ratchet 7 is fixed on the outer pawl seat 10 by the sour jujube axle 11 on the outer pawl seat 10, and outer pawl seat 10 is by being installed on the bearer ring 2 with bearer ring 2 corresponding Zhu Dao and steel ball.
Speed changer shown in the accompanying drawing 3 is a concrete application example of the present invention.When speed changer is installed in axis, flat retaining 6, core tooth 5 and silk retaining 3 are fastened on axis A successively and go up (axis and crank are fixed), and outer shroud 1 is threaded or Luo hole fixed chain wheels B, and the U type clamp on the outer pawl seat 10 is installed on the upright beam in middle joint C top.
Speed changer shown in the accompanying drawing 4 is another concrete application example of the present invention, at this moment speed changer is installed on the rear axle as a gear shift flywheel, flat retaining 6, core tooth 5 and silk retaining 3 are fastened on the rear axle D successively, and outer shroud 1 has sprocket, and the U type clamp on the outer pawl seat 10 is installed on the chain stay E of back.
Running for multi-purpose bidirectional speed changer of the present invention is that example is described as follows with middle shaft transmission:
1. forward high speed operation
Step crank A, axis forward (clockwise) is rotated, be fastened on core tooth 5 synchronous operations on the axis.Core tooth 5 will make outer shroud 1 and core tooth 5 reverse rotation by intermediary wheel star-wheel 8, but because interior ratchet 4 monodirectional locking outer shrouds 1 make it can only forward rotation, so this ring 1 also will be synchronously and 5 rotations of core tooth.At this moment, outer ratchet 7 becomes forward with the ratchet of bearer ring 2, and restrictive axes carrier ring 2 does not rotate.Outer shroud 1 makes the sprocket wheel B that fixes on it rotate again, will drive the chain operation.This moment, the operation of axis was identical with common bicycle axis runnability.
2. reverse low cruise
When axis when oppositely (counterclockwise) rotates, (crank is subjected to opposition), outer ratchet 7 is lock shaft carrier ring 2, makes it can not reverse rotation, and therefore, star-wheel 8 also is in stationary state at this moment.Star-wheel 8 becomes a fixing intermediary wheel.With the counter-rotational core tooth 5 of axis, make outer shroud 1 and its reverse rotation by star-wheel 8.At this moment, interior ratchet 4 is a up time, and outer shroud 1 will rotate smoothly, and just its direction is opposite with core tooth direction, and promptly when the axis backward rotation, outer shroud 1 is forward rotation still, and drives sprocket wheel B and the operation of chain forward.When backward rotation, because the internal diameter of core tooth 5 is less than the internal diameter of outer shroud 1, so during backward rotation, the revolution of outer shroud 1 is less than core tooth 5, speed becomes promptly the revolution less than crank A.Be low cruise this moment.
3. sliding and running
When crank stopped operating, core tooth 5 was motionless, and outer shroud 1 is under the drive of rear axle sprocket wheel, and with forward rotation, star-wheel 8 is also rotated by its effect thereupon, and drive bearer ring 2 rotates in the same way with outer shroud 1.At this moment, outer ratchet 7 is for forward, and interior ratchet 4 also is in forward, can not rotate by restrictive axes carrier ring 2.At this moment, outer shroud 1, bearer ring 2 all will rotate relative to core tooth 5, promptly finish the sliding and running of sprocket wheel B.
The axis bidirectional speed changer, it is simpler to have structure than prior art, and also safety and reliability of more convenient use is installed.Because the relative crank of sprocket wheel can slide, therefore, the flywheel on the trailing wheel can replace with common sprocket wheel, can reduce the cost of speed changing bicycle simultaneously.In addition, can assemble 2 groups of above sprocket wheels on the outer shroud 1 of this speed changer, make speed changer increase the speed change retaining, setting up of this step by-step variable gear can realize by common technology, and every increase a slice sprocket wheel can be realized the effect of two retaining speed changes.
4. speed changer single effect
Speed changer of the present invention, when the pulling backguy made outer ratchet break away from ratchet outside the bearer ring, bearer ring can be suitable with the axis freedom, rotates counterclockwise, and speed changer at this moment can only single effect, and is identical with common axis.
When multi-purpose bidirectional speed changer of the present invention was the flywheel multi-speed device, because bidirectional speed changer is installed on the rear axle, outer shroud was an active part, and the core tooth is a passive part, so its high low cruise is opposite with situation on axis, all the other are identical, are not stating at this more.According to above characteristics, this speed changer can be installed in bicycle, tricycle, the wheel Wheel-chair on gymnastic apparatus and the various bi-directional variable speed device, also can be installed on the tidal power station.
Claims (3)
1. bidirectional speed changer, it is by outer shroud, bearer ring, star-wheel, the silk retaining, flat retaining, core tooth and ratchet are formed, circle has two Zhu Dao and internal tooth in the outer shroud (1), outside the bearer ring (2), on the interior circle Yi Zhudao is arranged respectively, there is ratchet in the outside, little axle (9) is equipped with in the inboard, on the little axle (9) interior ratchet (4) and star-wheel (8) are housed respectively, flat retaining (6), core tooth (5) and silk retaining (3) are fixed on the axle, it is characterized in that also being provided with a Zhu Dao on bearer ring (2) cylindrical, bearer ring (2) outside is added with outer pawl seat (10) bearer ring (2) and silk retaining (3) is covered, in the outer pawl seat (10) the circle outside relatively the Zhu Dao on bearer ring (2) cylindrical be provided with Yi Zhudao, by these two Zhu Dao with place the steel ball in the pearl road that outer pawl seat (10) is installed on the bearer ring (2), outer pawl seat (10) outside has U type clamp, the inboard is provided with sour jujube axle (11), ratchet (7) outside sour jujube axle (11) is gone up installation.
2. according to the described bidirectional speed changer of claim 1, it is characterized in that bearer ring (2) inboard is equipped with 2,4,6 or 8 little axles (9), be equipped with respectively on the little axle (9) 1,2,3 or 4 or a plurality of in ratchet (4) and star-wheel (8).
3. according to the described bidirectional speed changer of claim 1, it is characterized in that to assemble 2 groups with upper sprocket wheel on the outer shroud (1), make speed changer increase the speed change retaining.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96115556A CN1061745C (en) | 1996-08-23 | 1996-08-23 | Multi-purpose bidirectional speed changer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96115556A CN1061745C (en) | 1996-08-23 | 1996-08-23 | Multi-purpose bidirectional speed changer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1174949A CN1174949A (en) | 1998-03-04 |
| CN1061745C true CN1061745C (en) | 2001-02-07 |
Family
ID=5122796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96115556A Expired - Fee Related CN1061745C (en) | 1996-08-23 | 1996-08-23 | Multi-purpose bidirectional speed changer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1061745C (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85202575U (en) * | 1985-06-22 | 1986-04-23 | 常殿林 | Flywheel with two pawl and bicycle with the flywheel for changing speed |
-
1996
- 1996-08-23 CN CN96115556A patent/CN1061745C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85202575U (en) * | 1985-06-22 | 1986-04-23 | 常殿林 | Flywheel with two pawl and bicycle with the flywheel for changing speed |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1174949A (en) | 1998-03-04 |
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| C06 | Publication | ||
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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 |