CN1048945C - Multipurpose mechanism in use for speed variable manpower cycle - Google Patents
Multipurpose mechanism in use for speed variable manpower cycle Download PDFInfo
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- CN1048945C CN1048945C CN94104421A CN94104421A CN1048945C CN 1048945 C CN1048945 C CN 1048945C CN 94104421 A CN94104421 A CN 94104421A CN 94104421 A CN94104421 A CN 94104421A CN 1048945 C CN1048945 C CN 1048945C
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- China
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- slide plate
- rickshaw
- positioning gear
- speed change
- multipurpose
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Abstract
The present invention relates to a multi-purpose mechanism used for speed change of man-powered vehicles, which is characterized in that double gears can be in slide fit with a support component, or integrated with the support component, and engaged or matched with a positioning component to form different kinds of combination. The mechanism used on a man-powered vehicle has the advantages of simple and reliable structure and broad speed-change range; the mechanism can be simultaneously arranged on a front wheel disc and a rear flywheel, and thus, the man-powered vehicle has the speed ratio the same as that of other speed-change vehicles while more labour is saved. In addition, the mechanism can be used as a rod telescoping mechanism, an angle controlling mechanism, a lifting and stretching mechanism, an eccentricity adjusting mechanism, a connecting and plugging mechanism, a disc type braking mechanism, etc., to form various forms of combination and deformation. The mechanism has some properties that common mechanisms do not have and can be produced in a large scale with a simple manufacture process.
Description
The rickshaw transmission is by chain, chain drum and flywheel are formed, common gear shift mode, change sprocket wheel into cone pulley that the sprocket wheel of different pitch diameters is superimposed, Chinese patent application number: 91205477.8 speed changer for man-power drawn vehicle mechanism has proposed another speed-changing mechanism, mainly comprise: supporting disk, Positioning Gear on the supporting disk center shaft, be mutually 180 ° of settings, can be along the slide plate of guide groove slip in the supporting disk, the slide plate working end is the semicircle chain drum, and the slide plate tail end axially is fixedly connected with the monodentate bar, tooth bar and Positioning Gear engagement, the rotational positioning gear, two slide plates are outer synchronously to be moved, and changes sprocket wheel work pitch diameter, then locating piece and Positioning Gear engagement locking.This structure slide plate is by monodentate bar supporting, and intensity hang down easy deflection, and is stressed unreasonable, has additional locating piece with the Positioning Gear engaging structure is not compact, and there is the gap after the displacement in two halves sprocket wheel joint portion, makes the cyclist lose sky in certain angle and feels.
The objective of the invention is to design a kind of stressed rationally, intensity improves, the location is reliable, the rickshaw speed-changing mechanism of compact conformation, and through distortion and serve many purposes.
Technical scheme of the present invention is, be provided with a supporting disk, substitute rickshaw axis wheel disc, the crank that supporting disk inserts the rickshaw axis links with it, the supporting disk center is the rickshaw axis, but bearing fit longitudinal travel on the axis, the Positioning Gear that dead axle rotates, be provided with in the supporting disk many by the center to extraradial guide chute, strip slide plate and guide chute bearing fit, skateboard back-end are the tooth top positioned opposite, not in same plane, two toothed rack with slide plate center of symmetry line parallel, the front end operate portions of slide plate is one section sprocket, with the engagement of rickshaw driving chain, and the monodentate bar engagement of Positioning Gear and slide plate, the rotational positioning gear, the same moved further of slide plate in the guide chute changes wheel disc work pitch diameter, and the consubstantiality double rack of Positioning Gear and slide plate meshes simultaneously, constrained each other, lock support dish work pitch diameter.In like manner the flywheel with supporting disk and rickshaw rear axle connects firmly, and also can realize the sprocket wheel reducing of rear axle.
The nose operate portions can also be one section belt grooves, and the segmental arc of one section band anti-slop serrations is to adapt to the requirement of other kind transmission gear shifts.
Double rack slide plate quantity can be provided with by the supporting disk center as required, two double rack slide plates are mutually 180 ° and cooperate with the supporting disk guide chute, three double rack slide plates are mutually 120 ° and cooperate with the supporting disk guide groove, four double rack slide plates are mutually 90 ° and cooperate the double rack of each slide plate alternative arrangement arranged side by side with the supporting disk guide groove.On the slide plate body that is oppositely arranged, also be provided with axial tooth bar jack, make each toothed rack of both sides, improve slide plate intensity mutually to inserting.
Positioning Gear in the technical solution of the present invention can have multiple different structure form: one can be along the gear of center shaft longitudinal travel, gear face is provided with reseting pressuring spring, Gear axial displacement and the engagement of moving member slide plate monodentate bar, slide plate is removable, after stage clip resets, the double rack of reset gear and slide plate meshes simultaneously, the slide plate locking; Two in-line gears, when they separate, be equal to the engagement of a gear and slide plate monodentate bar, when they are combined into one and the slide plate double rack mesh simultaneously, two gears have in conjunction with the modes of constraint mutually: internal tooth constraint, end tooth constraint, ratchet constraint, projection constraint, pin constraint and the same key constraint of central minor axis.Also can be provided with key operated lock core on the Positioning Gear.
Change the displacement gap of adjacent two slide plate joint portions and seamlessly transit in order to remedy the sprocket wheel pitch diameter, the present invention also is provided with in slide plate operate portions junction and follows that the sprocket wheel pitch diameter changes and Fu chain tray radially.
The technical scheme that adopts the present invention to propose is applied to the rickshaw sprocket wheel and can changes in the work pitch diameter mechanism, because two toothed rack of slide plate are propped up holding capacity, has increased the load-carrying capacity of sprocket wheel.Positioning Gear is simple, and position constraint is reliable, compact conformation.The chain tray is followed the double rack sledge displacement, can form the regular variation chain drum of sub-elliptical.The pitch circle of four double rack slide plates increases or reduces, and can form approximate just round sprocket wheel, has enlarged speed range, has improved the stationarity of transmission.As a kind of dish class Transmission that changes the work pitch diameter, or strut member is deformed into and becomes the bar class Transmission that can change the work pitch after shaft-like, has purposes very widely, such as: the rod member more than two connects, the adjusting of rod member length; Corner by control double rack slide plate relative positioning gear or be locked into becomes a kind of angle control mechanism; Many cover rod member telescoping mechanisms and angle control mechanism are combined into the object that is connected of shape, change in size; Lock core mechanism is set on strut member or the Positioning Gear, limits its Positioning Gear and move, the double rack slide plate after the distortion is made dead bolt, becomes a kind of pick-proof lock; As wheel disc, the guide chute two sides by wheel disk center respectively are provided with the not tooth section in same plane with strut member, and Positioning Gear moves in chute or locking, and the positioning teeth wheel shaft as eccentric shaft movably, is formed a kind of adjustable eccentric wheel drive mechanism.
Provide some embodiments of the present invention below.
But Fig. 1 is a chain drum front view before the manpower car reducing of the present invention.
Fig. 2 is but that chain drum A-A analyses and observe before the manpower car reducing of the present invention.
But Fig. 3 is another structure of chain tray of chain drum before the manpower car reducing of the present invention.
But Fig. 4 is the front view of manpower car reducing rear flywheel of the present invention.
But Fig. 5 is manpower car reducing rear flywheel A-A of the present invention to be analysed and observe.
Fig. 6, Fig. 7, Fig. 8 are three kinds of structural representations of Positioning Gear among the present invention.
Fig. 9 is the structural representation that the present invention is applied to angle control mechanism.
Figure 10 is the front view that the present invention is applied to flexible rod member.
Figure 11 is the lateral plan that the present invention is applied to flexible rod member.
Figure 12 is that the present invention is applied to the operate portions signal of flexible rod member as Adjustable wrench.
Figure 13 is the front view that the present invention is applied to two slotting coupling mechanisms.
Figure 14 is the lateral plan that the present invention is applied to two slotting coupling mechanisms.
Figure 15 is the birds-eye view that the present invention is applied to two slotting coupling mechanisms.
Figure 16 is the front view that the present invention is applied to eccentric mechanism.
Figure 17 is the lateral plan that the present invention is applied to eccentric stiffener.
Be described in further detail in conjunction with the accompanying drawings:
Fig. 1, Fig. 2 is the speed-changing mechanism that can be used for the preceding chain drum of rickshaw, two slide plates 1 that are mutually 180 ° of settings cooperate with guide chute 3 in the supporting disk 2, the operate portions of slide plate 1 is half sprocket wheel, the rear end is provided with not in same plane, and tooth top is oppositely arranged the double rack with the skateboard-axis line parallel, the double rack 1-1 of two slide plates and 1-2 alternative arrangement arranged side by side, Positioning Gear 4 is two in-line gears that cooperate with bicycle middle shaft 5, left gear connects firmly shift fork 6 and retrains it mutually with right gear and relatively rotates, end face is provided with reseting pressuring spring 7, crank 8 and middle pivot pin connection, supporting disk 2 connects firmly with crank, during speed change, shift fork drives the left gear displacement, separate the monodentate bar engagement of right gear and two slide plates, rotating crank with another tooth bar of slide plate, the monodentate bar of slide plate rotates around the position right gear, the same moved further of two slide plates, reach requirement after, under the reset response of stage clip.Resetting with right gear is constrained to one mutually, and meshes simultaneously with the double rack of two slide plates.The slide plate locking.Steady in order to guarantee chain gear, between two slide plates, be symmetrical arranged and follow that the sprocket wheel pitch diameter changes and Fu chain tray 9 radially, provided a kind of version among Fig. 1, the driving surface of chain tray 9 is one section arc, areal of support is two inclined-planes in a plane not, chain tray center is provided with pin 10, the radially groove bearing fit of pin 10 and supporting disk, the two ends of two halves chain skateboard are hinge skewback 11 respectively, the inclined-plane of skewback cooperates with the support inclined of chain tray, when two halves chain skateboard moves, affects skewback 11 to move, the common radially groove servo-actuated that holds up chain tray 9 along supporting disk, extension spring 12 effect chain trays are by skewback 11.Fig. 3 has provided another version of chain tray, chain tray 13, its driving surface is one section arc, anchor plate 14 and slide plate end hinge, and the supporting cambered surface of picking-up chain tray 13, an end of chain tray 13 and a symmetrically arranged slide plate end hinge are when two slide plates move, affect the displacement of anchor plate 14 slot bar trays supporting cambered surface, realize the radially servo-actuated of chain tray.
Fig. 4, Fig. 5 has provided the embodiment that can be used for rickshaw rear flywheel speed change, four slide plates are mutually 90 ° of layouts and cooperate with supporting disk 15 guide chutes, the slide plate operate portions shape that is oppositely arranged is identical, a pair of is sprocket segmental arc slide plate 16, another is to being arc section slide plate 17, played the effect of chain tray, every skateboard back-end is provided with not in same plane, and tooth top is oppositely arranged the double rack with the skateboard-axis line parallel, double rack alternative arrangement Positioning Gear 18 is a gear with bicycle rear shaft 19 bearing fits, the gear width equals the double rack stack thickness of four slide plates, Positioning Gear 18 is stuck in the groove of shift fork 20, and the Positioning Gear distance of axial displacement is half of double rack stack thickness of four slide plates, and supporting disk 15 connects firmly with the rickshaw flywheel teeth and is integral, pulling shift fork 20 longitudinal travels during speed change, the monodentate bar engagement of Positioning Gear 18 and four slide plates, the same moved further of slide plate is after shift fork resets, the double rack of Positioning Gear 18 and four slide plates meshes simultaneously, the slide plate locking.
Fig. 6, Fig. 7, Fig. 8 provide three kinds of versions of Positioning Gear among the present invention respectively.The Positioning Gear of Fig. 6 is a gear 23 with center shaft 22 bearing fits of strut member 21, and its end face is provided with reseting pressuring spring 24, and the longitudinal travel of pinion can be realized engagement of monodentate bar or double rack engagement with slide plate 25.The Positioning Gear that Fig. 7 is made up of two concentric gears 26,27, two gears can separate or to axial in conjunction with being constrained to one, the way of restraint that mutually combines can be internal gearing, end tooth engagement, ratchet constraint, projection constraint, pin constraint or with axle 22 same key constraints.Fig. 8 forms Positioning Gear by two concentric gears 28,29, is separation and the constraint of being controlled two gears by their longitudinal travel of internal gear 30, and with axle 22 bearing fits.
Fig. 9 has provided embodiment that the present invention is applied to angle control mechanism: slide plate 31 cooperates with guide chute in the strut member 32, Positioning Gear is two in-line gears, one of them gear 33 is fixed on the central minor axis 34, and connect firmly by central minor axis 34 and external piece 35, another gear 36 and central minor axis bearing fit, end face is provided with reseting pressuring spring 37, handsetting gear 36, single rack and pinion 33 engagements of slide plate 31, but slide plate and strut member relative rotation, stage clip 37 resets, and gear 33 and 36 is constrained to one mutually, double rack with slide plate 31 meshes simultaneously, the corner locking.
Figure 10, Figure 11 provide the embodiment that the present invention is applied to flexible rod member.If is the warpage of strut member strut bar 38, double rack slide plate 39 cooperates with guide chute in the strut bar, use technical solution of the present invention, the monodentate bar engagement of Positioning Gear 40 and slide plate 39, slide plate moves, and meshes simultaneously with the double rack of slide plate 39, the slide plate locking, form the expansion link of unidirectional or two-way scalable usable length, in like manner strut bar is " T " word or " ten " word is shaft-like, then becomes by three slide plates or four " T " font expansion link, " ten " font expansion links that slide plate constitutes.The operate portions shape that changes the double rack slide plate has purposes very widely.Key operated lock core is set on Positioning Gear, and the slide plate operate portions is designed to dead bolt, can be applicable to pick-proof lock.Among Figure 12 slide plate 39 and strut bar 38 operate portions are designed to 120 ° angle, just form a kind of Adjustable wrench.
Figure 13, Figure 14, Figure 15 have provided the present invention be applied to peg graft another embodiment of coupling mechanism: be fixedly connected with not in same plane and tooth top is oppositely arranged two toothed rack parallel to each other to inserting back-up block 41, back-up block 41 centers are provided with Positioning Gear 42, also be provided with in the back-up block and be connected tooth bar bearing fit guide chute, use technical solution of the present invention, Positioning Gear 42 meshes with the monodentate bar of back-up block 41, and back-up block 41 is pegged graft mutually; Mesh locking simultaneously with the double rack of back-up block 41 and peg graft, form convenient disassembly to inserting coupling mechanism.
Figure 16, Figure 17 provide the embodiment that the present invention is applied to eccentric mechanism.Transmission wheel disc 43, be provided with the guiding translot by the center on its card, guiding translot two sides are respectively arranged with not two tooth sections parallel to each other in same plane, anchor plate 44 is along guiding translot bearing fit, connect firmly on it one with 43 eccentric shafts that be arranged in parallel 45 of wheel disc, Positioning Gear 46 is arranged in guiding translot and eccentric shaft 45 axial sliding fits, Positioning Gear 46 1 side end faces are provided with reseting pressuring spring 47, during the tuningout heart, Positioning Gear axial compression reseting pressuring spring, Positioning Gear and the engagement of wheel disc guiding translot one side monodentate section drive anchor plate 44 along the displacement of guiding translot, eccentric shaft 45 displacements, when reaching the requirement position, stage clip 47 resets, and Positioning Gear meshes locking eccentric simultaneously with guiding translot both sides bidentate section.
Claims (9)
1. high-mobility, multipurpose, wheeled vehicle mechanism that can be used for the rickshaw speed change, mainly include supporting disk (2) with the interlock of rickshaw Middle axle crank, supporting card is provided with by the center to extraradial guide chute, the rickshaw axis (5) at supporting disk center but go up the bearing fit longitudinal travel, the Positioning Gear (4) that dead axle rotates, strip slide plate (1) and the interior guide chute bearing fit of supporting disk (2), the tooth bar of strip skateboard back-end and Positioning Gear (4) engagement, the front end operate portions is one section and rickshaw driving chain ingear sprocket, it is characterized in that, the tooth bar of strip slide plate (1) rear end is two rooted tooth top positioned opposite, with slide plate center of symmetry line parallel, conjuncted tooth bar in same plane not, Positioning Gear and the engagement of slide plate monodentate bar, the built-in slide plate of guide chute are shifted synchronously and change sprocket wheel work pitch diameter, and Positioning Gear and slide plate consubstantiality double rack mesh simultaneously, constrained each other, locking sprocket wheel work pitch diameter.
2. the high-mobility, multipurpose, wheeled vehicle mechanism that can be used for the rickshaw speed change according to claim 1 is characterized in that, the operate portions of nose can also be one section belt grooves, the segmental arc of one section band anti-slop serrations.
3. the high-mobility, multipurpose, wheeled vehicle mechanism that can be used for the rickshaw speed change according to claim 1, it is characterized in that can be two by the double rack slide plate that the strut member center is provided with is mutually 180 ° and cooperates with guide chute, three are mutually 120 ° and cooperate with guide chute, four are mutually 90 ° and cooperate with guide chute, the double rack alternative arrangement of slide plate also can be axially arranged with the tooth bar jack to inserting mutually on the slide plate body that is oppositely arranged.
4. the high-mobility, multipurpose, wheeled vehicle mechanism that can be used for the rickshaw speed change according to claim 1 is characterized in that, Positioning Gear wherein is two separable in-line gears, and gear is constrained each other to be combined into one and double rack meshes simultaneously, the slide plate locking.
5. the high-mobility, multipurpose, wheeled vehicle mechanism that can be used for the rickshaw speed change according to claim 1 is characterized in that being provided with in slide plate operate portions junction and follows that the sprocket wheel pitch diameter changes and Fu chain tray radially.
6. the multi-purpose machinery that can be used for the rickshaw speed change according to claim 1 is characterized in that wherein strut member can be a rod member, the double rack slide plate of layout at an angle to each other, and formation can change the flexible rod member of work pitch.
7. the high-mobility, multipurpose, wheeled vehicle mechanism that can be used for the rickshaw speed change according to claim 1, it is characterized in that, strut member and double rack slide plate are combined into one, formation is to inserting back-up block (41), back-up block (41) center is provided with Positioning Gear (42), also be provided with in the back-up block with to the guide chute of gear shaping bar bearing fit.
8. the high-mobility, multipurpose, wheeled vehicle mechanism that can be used for the rickshaw speed change according to claim 1 is characterized in that, also is provided with the lock core that the restriction Positioning Gear moves on Positioning Gear.
9. the high-mobility, multipurpose, wheeled vehicle mechanism that can be used for the rickshaw speed change according to claim 1, it is characterized in that, supporting disk and double rack are combined as a whole and form transmission wheel disc (43), disk center is provided with the guiding translot by wheel, guiding translot both sides are respectively equipped with not two tooth sections parallel to each other in same plane, anchor plate (44) is along guiding translot bearing fit, connect firmly on it and the parallel eccentric shaft (45) of wheel disc (43) axle, Positioning Gear (46) is positioned at guiding translot and the engagement of tooth section, and with eccentric shaft (45) bearing fit, the one side end face is provided with reseting pressuring spring (47).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94104421A CN1048945C (en) | 1994-04-25 | 1994-04-25 | Multipurpose mechanism in use for speed variable manpower cycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94104421A CN1048945C (en) | 1994-04-25 | 1994-04-25 | Multipurpose mechanism in use for speed variable manpower cycle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1110952A CN1110952A (en) | 1995-11-01 |
| CN1048945C true CN1048945C (en) | 2000-02-02 |
Family
ID=5031578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94104421A Expired - Fee Related CN1048945C (en) | 1994-04-25 | 1994-04-25 | Multipurpose mechanism in use for speed variable manpower cycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1048945C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102537245A (en) * | 2012-02-14 | 2012-07-04 | 任孝忠 | Non-closed gear combined tooth number change device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85105841B (en) * | 1985-07-31 | 1987-12-02 | 工贸合营常州自行车总厂 | Bicycle speed variator |
| CN1070617A (en) * | 1991-09-14 | 1993-04-07 | 常州市自行车曲柄厂 | Bicycle speed-varying unit |
-
1994
- 1994-04-25 CN CN94104421A patent/CN1048945C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85105841B (en) * | 1985-07-31 | 1987-12-02 | 工贸合营常州自行车总厂 | Bicycle speed variator |
| CN1070617A (en) * | 1991-09-14 | 1993-04-07 | 常州市自行车曲柄厂 | Bicycle speed-varying unit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102537245A (en) * | 2012-02-14 | 2012-07-04 | 任孝忠 | Non-closed gear combined tooth number change device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1110952A (en) | 1995-11-01 |
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