CN200988563Y - Novel bicycle two way speed changing driver - Google Patents
Novel bicycle two way speed changing driver Download PDFInfo
- Publication number
- CN200988563Y CN200988563Y CN 200620128518 CN200620128518U CN200988563Y CN 200988563 Y CN200988563 Y CN 200988563Y CN 200620128518 CN200620128518 CN 200620128518 CN 200620128518 U CN200620128518 U CN 200620128518U CN 200988563 Y CN200988563 Y CN 200988563Y
- Authority
- CN
- China
- Prior art keywords
- gear
- planetary wheel
- sun gear
- wheel
- rear axle
- 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 relates to a bidirectional variable speed drive for the new bicycle, comprising a rear shaft, a sprocket, a drive gear, a big right ratchet wheel, a sun gear, a planet wheel carrier, a planet gear and a wheel hub. The utility model is characterized in that the drive gear is connected with the sun gear directly, which is meshed with the outer ring of the planet gear via the teeth rack on the inner ring; the planetary gear is meshed with the wheel hub via the middle gear, which is composed of a small gear and a large gear; a one way transmission device is positioned between the sun gear and the planet wheel carrier and is composed of a right half box and a left half box which comprises a box body, a concave groove, a slope and a limited block. The utility model has the advantages of having more reasonable design, saving the ratchet wheel, adding up with a middle gear, and achieving the speed variation by the middle gear because the small gear diameter of the middle gear is smaller than that of the large gear, and the utilization value of the bidirectional drive is greatly enhanced while the other functions are kept constantly.
Description
Technical field
The utility model relates to a kind of bicycle drive, refers in particular to the oppositely just progressive driving device of treadmill, is specially new bicycle bi-directional variable speed actuator.
Background technology
The applicant is that the structure that 200520023862.2 name is called disclosed two-way drive device in the patent application document of " new bicycle bidirectional drive " comprises that two ends are provided with the rear axle of coro bearng in the patent No., be located at the sprocket wheel on the rear axle, with sprocket wheel bonded assembly drive gears, be fixed in the big right ratchet that right shelves cover with the drive gears bonded assembly, with the drive gears bonded assembly, be located at the sun gear on the rear axle, be located at the planetary wheel carrier on the rear axle, be located on the planetary wheel carrier with sun gear by the tooth bar planet gear meshed, with planetary wheel bonded assembly wheel hub.Drive gears drives sun gear by ratchet.Sun gear is by tooth bar on the outer ring and planetary wheel engagement.Direct and the wheel hub engagement of planetary wheel.When stepping forward when changeing before pedal makes sprocket wheel, sprocket wheel drives wheel and rotates forward by drive gears and big right ratchet and ratchet engaged; When stepping backward when changeing after pedal makes sprocket wheel, sprocket wheel is by drive gears and ratchet engaged, and drives sun gear by ratchet planetary wheel is rotated, thereby wheel is rotated equally forward.Though the two-way drive device of this structure can be realized bi-directional drive, but still has discontinuity, use after a period of time defectives such as planetary tooth bar easy deformation.
Summary of the invention
The utility model provides a kind of new bicycle bi-directional variable speed actuator for the above-mentioned defective that above-mentioned bicycle two-way drive device exists.
The technical solution of the utility model realizes in the following way: a kind of new bicycle bi-directional variable speed actuator, comprise that two ends are provided with the rear axle of coro bearng, be located at the sprocket wheel on the rear axle, with sprocket wheel bonded assembly drive gears, be fixed in the big right ratchet that right shelves cover with the drive gears bonded assembly, with the drive gears bonded assembly, be located at the sun gear on the rear axle, be located at the planetary wheel carrier on the rear axle, be located on the planetary wheel carrier with sun gear by the tooth bar planet gear meshed, with planetary wheel bonded assembly wheel hub; Drive gears directly is connected with sun gear; Sun gear is by tooth bar on the inner ring and the engagement of planetary outer ring; Planetary wheel is by intermediate gear and wheel hub engagement; The structure of intermediate gear comprises and planetary inner ring ingear miniature gears, be located at the miniature gears rear portion and be connected as a single entity with miniature gears, with wheel hub ingear big gear wheel; Be provided with unidirectional driver between sun gear and the planetary wheel carrier, the structure of this unidirectional driver comprises: be located on the rear axle, combine box with the right side that the sun gear rear end is connected as a single entity, be located on the rear axle, combine box with a left side that the planetary wheel carrier front end is connected as a single entity; About all comprise box body in conjunction with the structure of box, be located at several grooves on the box body, be located at the slope of groove one end, be located at the groove other end by piece.Under the situation that sprocket wheel does not rotate, the right side just in time embeds in the groove of a left side in conjunction with box left and right slope overlaid in conjunction with box in conjunction with the piece that ends on the box.When stepping forward when changeing before pedal makes sprocket wheel, because left and right existence in conjunction with the box upslope is right in conjunction with the groove in conjunction with box by a piece disengaging left side on the box, makes sun gear and planetary wheel carrier do disengaging movement, thereby make sun gear and planetary wheel jump out of mesh state, separated attitude; Sprocket wheel drives wheel and rotates forward by drive gears and big right ratchet engaged; When stepping backward when changeing after pedal makes sprocket wheel, left and rightly mesh in conjunction with box, a left side is right in conjunction with in the groove on the box in conjunction with just in time embedding by piece on the box, make sun gear and planetary wheel be engagement, sprocket wheel drives sun gear by drive gears rotates planetary wheel, planetary wheel drives intermediate gear and then drives wheel hub, thereby wheel is rotated equally forward.
The utility model design is more reasonable, compared with prior art, saved ratchet, increased intermediate gear, because the wheel of intermediate gear miniature gears footpath is less than the wheel footpath of big gear wheel, therefore, by the effect of intermediate gear, realized the effect of speed change, and other all functions remain unchanged all, therefore, improved the value of service of bidirectional drive greatly.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is unidirectional driver structural representation;
The specific embodiment
A kind of new bicycle bi-directional variable speed actuator, comprise that two ends are provided with the rear axle 1 of coro bearng, be located at the sprocket wheel 2 on the rear axle 1, with sprocket wheel 2 bonded assembly drive gears 3, be fixed in the big right ratchet 4 that right shelves cover with drive gears 3 bonded assemblys, with drive gears 3 bonded assemblys, be located at the sun gear 5 on the rear axle 1, be located at the planetary wheel carrier 6 on the rear axle 1, be located on the planetary wheel carrier 6 with sun gear 5 by tooth bar planet gear meshed 7, with planetary wheel 7 bonded assembly wheel hubs 8; Drive gears 3 directly is connected with sun gear 5; Sun gear 5 is by the outer ring engagement of tooth bar on the inner ring and planetary wheel 7; Planetary wheel 7 is by intermediate gear and wheel hub 8 engagements; The structure of intermediate gear comprises the inner ring ingear miniature gears 9 with planetary wheel 7, be located at miniature gears 9 rear portions and 9 that be connected as a single entity with miniature gears, with wheel hub 8 ingear big gear wheels 10; Be provided with unidirectional driver 16 between sun gear 5 and the planetary wheel carrier 6, the structure of this unidirectional driver 16 comprises: be located on the rear axle 1, combine box with the right side that sun gear 5 rear ends are connected as a single entity, be located on the rear axle 1, combine box with a left side that planetary wheel carrier 6 front ends are connected as a single entity; About all comprise box body 11 in conjunction with the structure of box, be located at several grooves 12 on the box body 11, be located at the slope 13 of groove 12 1 ends, be located at groove 12 other ends by piece 14.
In order to reduce friction, connecting box 15 can be set on rear axle, planetary wheel carrier is arranged on the connecting box.Be that rear axle 1 is provided with the connecting box 15 that is connected with planetary wheel carrier 6.
For make separated attitude about recover engagement as early as possible in conjunction with box, sliding tray can be set on connecting box, planetary wheel carrier is arranged in the sliding tray, and elasticity reset device is set at the rear portion of planetary wheel carrier, make separated attitude about recover engagement as early as possible in conjunction with box, this is a prior art.
Claims (3)
1, a kind of new bicycle bi-directional variable speed actuator, comprise that two ends are provided with the rear axle of coro bearng (1), be located at the sprocket wheel (2) on the rear axle (1), with sprocket wheel (2) bonded assembly drive gears (3), be fixed in the big right ratchet (4) that right shelves cover with drive gears (3) bonded assembly, with drive gears (3) bonded assembly, be located at the sun gear (5) on the rear axle (1), be located at the planetary wheel carrier (6) on the rear axle (1), be located on the planetary wheel carrier (6) with sun gear (5) by tooth bar planet gear meshed (7), with planetary wheel (7) bonded assembly wheel hub (8); It is characterized in that: drive gears (3) directly is connected with sun gear (5); Sun gear (5) is by the outer ring engagement of tooth bar on the inner ring and planetary wheel (7); Planetary wheel (7) is by intermediate gear and wheel hub (8) engagement; The structure of intermediate gear comprises the inner ring ingear miniature gears (9) with planetary wheel (7), be located at miniature gears (9) rear portion and be connected as a single entity with miniature gears (9), with wheel hub (8) ingear big gear wheel (10); Be provided with unidirectional driver (16) between sun gear (5) and the planetary wheel carrier (6), the structure of this unidirectional driver (16) comprising: be located on the rear axle (1), combine box with the right side that sun gear (5) rear end is connected as a single entity, be located on the rear axle (1), combine box with a left side that planetary wheel carrier (6) front end is connected as a single entity; About all comprise box body (11) in conjunction with the structure of box, be located at several grooves (12) on the box body (11), be located at the slope (13) of groove (12) one ends, be located at groove (12) other end by piece (14).
2, new bicycle bi-directional variable speed actuator according to claim 1, it is characterized in that: rear axle (1) is provided with the connecting box (15) that is connected with planetary wheel carrier (6).
3, new bicycle bi-directional variable speed actuator according to claim 1, it is characterized in that: the rear portion of planetary wheel carrier (6) is provided with elasticity reset device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620128518 CN200988563Y (en) | 2006-12-21 | 2006-12-21 | Novel bicycle two way speed changing driver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620128518 CN200988563Y (en) | 2006-12-21 | 2006-12-21 | Novel bicycle two way speed changing driver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200988563Y true CN200988563Y (en) | 2007-12-12 |
Family
ID=38939603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620128518 Expired - Fee Related CN200988563Y (en) | 2006-12-21 | 2006-12-21 | Novel bicycle two way speed changing driver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200988563Y (en) |
-
2006
- 2006-12-21 CN CN 200620128518 patent/CN200988563Y/en not_active Expired - Fee Related
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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 |