CN1124829A - Eccentric angle speed-change variable drive - Google Patents
Eccentric angle speed-change variable drive Download PDFInfo
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- CN1124829A CN1124829A CN 95111592 CN95111592A CN1124829A CN 1124829 A CN1124829 A CN 1124829A CN 95111592 CN95111592 CN 95111592 CN 95111592 A CN95111592 A CN 95111592A CN 1124829 A CN1124829 A CN 1124829A
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- foreign steamer
- transmission
- ratchet
- drive
- way clutch
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Abstract
The stepless speed variator for angular speed variation of bike, motor-driven vehicles and machinery features that the central distance between external and internal wheels in drive mechanism is controlled by control mechanism composed of slotted plate and guide track to control its speed ratio. Connecting rod or click is used for transmission of internal and external wheels, and its periodical speed-varying drive is corresponding to periodically doing work by padel or crankshaft with high-rotation-speed output via one-way clutch.
Description
The invention belongs to a kind of gear of mechanical field, it is applicable to bicycle, Motor Vehicle, ship and machinery.
The present invention be 1993 patent of invention " slide block clutch eccentric buncher " (number of patent application is 92105836.5) the basis on, invented a kind of new mode of structure again and realized stepless change.The transmission part of " slide block clutch eccentric buncher " is many, complex structure, and surface friction drag is big during transmission, and manufacturing, installation precision require high, and do not have good one-way clutch transmission agency.Particularly it does not utilize the pedal of bicycle and starting motor-driven vehicle machine crankshaft periodically, the characteristics of work done intermittently.
The purpose of this invention is to provide a kind of stepless speed variator, it is simple and compact for structure, and Transmission Ratio Control is accurately convenient, meets the characteristics of bicycle pedal and engine crankshaft periodicity, work done at intermittence, and, have the one-way clutch transmission agency.
The object of the present invention is achieved like this: as illustrated in fig. 1 and 2, variable speed drive is made up of foreign steamer (1) and interior wheel (35), transmit rotation by connecting rod (36) or ratchet (12), to rotate output through one-way clutch, and control inside and outside wheel speed ratio by foreign steamer centre distance in the control gear change.Wherein, foreign steamer (1) and interior wheel (35) driving wheel and follower relation each other.The working principle of variable speed drive is: when foreign steamer (1) and interior wheel (35) when rotating with one heart, rotating ratio is 1, does not promptly have speed change; After the centre distance of foreign steamer (1) and interior wheel (35) strengthened, driving wheel was in rotation process, and driven crop rotation periodically angle speed change is rotated, and centre distance is big more, and its maximum (top) speed is bigger than more.And the work done process of bicycle pedal and starting motor-driven vehicle machine crankshaft also is to be periodically to carry out in several angle, and work done power changes with angle.Therefore, as long as corresponding with pedal or bent axle work done angle, just realized driving up effectively the big rotating ratio driving angle of variable speed drive.Because the output shaft of variable speed drive rotates and exports by one-way clutch, so in the little rotating ratio angle in an angle speed change rotation period (being non-work done angle), rotating speed is vehicle driven portion (wheel etc.) free-wheel voluntarily faster, and can not influence the coast voluntarily of the slower vehicle traction of rotating speed part (pedal or engine crankshaft etc.), like this, the speed change drive part has just been realized quickening periodic intermittence.The rotation of foreign steamer (1) and interior wheel (35) can adopt connecting rod (36) to transmit, and needs will rotate output through one-way clutch; Foreign steamer (1) or interior wheel (35) also can adopt ratchet (2) form, and carry out transmission by ratchet (12), and this variable speed drive itself also is a kind of one-way clutch, so the rotation of output shaft can directly be exported.The foreign steamer transmission constitutes the transmission of one-level speed change in a pair of; Many internally foreign steamer transmission combinations can constitute the multi-change speed transmission, and this not only can increase rotating ratio, also can obtain acceleration mode preferably.The working principle of control section is: referring to Fig. 3, the rotation of frid (3) can be done directed slippage along fixing slide rail (4) together by promotion cylinder screw (6) of the groove above it and foreign steamer (1) center, thus foreign steamer centre distance in changing.Certainly, control section also can adopt wire spring, worm and gear, connecting rod, gear or cam to change interior foreign steamer centre distance.
Owing to adopted such scheme, not only simple in structure, stepless change control is convenient, the gearing friction resistance is little, and it has the characteristics of angle speed change, and corresponding with pedal or bent axle work done angle, meets its work done variable power characteristic, thereby can make bicycle high speed, laborsaving, the motor car engine operation is more effective, light.If particularly the speed change drive part adopts ratchet, ratchet type of belt drive, variable part itself also is a kind of one-way clutch.
The present invention is further described below in conjunction with drawings and Examples:
Fig. 1 is the variable speed drive schematic diagram that is connected transmission by connecting rod
Fig. 2 is the variable speed drive schematic diagram that is connected transmission by ratchet
Fig. 3 is first embodiment's axial view of the present invention
Fig. 4 is first embodiment's plan view of the present invention
Fig. 5 is the axial sectional view of first embodiment of the present invention
Fig. 6 is second axial sectional view of embodiment of the present invention
Fig. 7 is the 3rd embodiment's axial view of the present invention
Fig. 8 is the 3rd embodiment's plan view of the present invention
Fig. 9 is the 4th embodiment's plan view of the present invention
Among the figure, 1 foreign steamer, 2 ratchets, 3 frids, 4 slide rails
5 bearing outer rings, 6 cylinder screws, 7 fixed card, 8 fixed card, 9 fixing frames
10 upper saw pulleys, 11 stage clips, 12 ratchets, 13 upper saw pulleys, 14 wire rope
15 springs, 16 wire rope, 17 upper saw pulleys, 18 axletrees, 19 setscrew nuts
20 balls, 21 balls, 22 packing rings, 23 screws, 24 screws
25 stage clips, 26 ratchets, 27 stage clips, 28 ratchets, 29 stage clips
30 short ratchet pawls, 31 stage clips, 32 short ratchet pawls, 33 stage clips, 34 short ratchet pawls
Wheel 36 connecting rods 37 slide blocks 38 screws 39 screws in 35
40 outer covers, 41 fixed plates, 42 screws, 43 balls, 44 balls
Wheel 49 back-up rings in 45 bearings, 46 bearings, 47 bearings, 48 secondarys
50 nuts, 51 secondary connecting rods, 52 sleeves, 53 keys, 54 ratchet wheels
55 nuts, 56 back-up rings, 57 rollers, 58 output wheels, 59 bearings
60 springs
In Fig. 3 and first embodiment shown in Figure 4, general structure is: ratchet (2) is connected firmly on axletree (18) by screw thread, setscrew nut (19) at ratchet (2) two ends passes through ball (20), frid (3) and screw (24), slide rail (4) and screw (23) thereof, bearing outer ring (5), ball (21) and packing ring (22), with foreign steamer (1) and whole component axially locating.Control section structure and working procedure thereof are: slide rail (4) is sleeved on the interior round platform shoulder of frid (3), and by fixing frame (9), is fixed on the vehicle frame transfixion.The bearing outer ring (5) of foreign steamer (1) is combined as a whole by two fixed card (7) and (8).Bearing outer ring (5) inside groove is embedded with slide rail (4), thereby linear slide up and down; The cylinder screw (6) (or slide block) of one end is embedded in the groove of frid (3).When pulling wire rope (14), drive frid (3) and rotate, but the upwards slippage together of housing washer (5) and foreign steamer (1), the centre distance that promptly increases ratchet (2) and foreign steamer (1) is to strengthen rotating ratio; When unclamping wire rope (14), spring (15) can promote foreign steamer (1) slippage downwards by wire rope (16) pulling frid (3) counter-rotating, promptly reduces centre distance to reduce rotating ratio.Certainly, can also adopt wire spring, gear, worm and gear, connecting rod or cam to control interior foreign steamer centre distance.Variable speed drive structure and working procedure thereof are: foreign steamer (1) is inner to connect ratchet (12) by hinge or bearing, ratchet (12) is pressed on the ratchet (2) under stage clip (11) effect, formed the unidirectional transmission of click, when foreign steamer (1) when clockwise rotating, promote ratchet (2) and axletree (18) is done angle speed change rotation together by ratchet (12).Because ratchet (12) relatively rotates in transmission process with ratchet (2), therefore, the head of the ratchet root of ratchet (2) and ratchet (12) is fillet.Can also as shown in Figure 5 three ratchets (12), (26) and (28) and stage clip (11) thereof, (25), (27) be housed in foreign steamer (1), also can adopt several ratchets.Because ratchet transmission " surmounting characteristic " and eccentric wheel be angle speed change transport characteristics periodically, the ratchet ability transmitting movement that has only the rotating ratio maximum, therefore, these ratchets alternately promote ratchet (2) with big rotating ratio, have promptly increased the big rotating ratio transmission angle of foreign steamer (1).But when two ratchets replaced, rotating ratio changed, therefore can also be on each ratchet limit respectively and equip a short ratchet pawl (30), (32), (34) and stage clip (29) thereof, (31), (33), can obtain than the stable rotating speed ratio.This variable speed drive has adopted the click kind of drive, so itself also is a kind of one-way clutch.
In second embodiment shown in Figure 6, general structure is the same with first embodiment with control gear, no longer explanation.And the difference of variable speed drive is interior wheel (35) as driving wheel, by hinge or bearing connection two ratchets (12), (26) and stage clip (11) thereof, (25) is housed on it, also can adopt several ratchets; Foreign steamer (1) is a follower, adopts the ratchet form, and output is rotated.Like this, foreign steamer (1) can alternately be quickened in two ratchets (12), (26).This variable speed drive itself also is a kind of one-way clutch.
In Fig. 7 and the 3rd embodiment shown in Figure 8, be that the transmission of wheel (35) in the transmission of one group of foreign steamer (1) and ratchet (2) and a group and foreign steamer (1) is made up, to obtain big rotating ratio and better acceleration mode.Its general structure is: ratchet (2) is connected firmly on axletree (18) by screw thread, the setscrew nut (19) at ratchet (2) two ends is by ball (44), interior wheel (35), ball (43), (20), fixed plate (41), outer cover (40) and screw (24), frid (3) and screw (23) thereof, bearing outer ring (5), ball (21), with foreign steamer (1) and whole component axially locating.Control gear structure and working procedure thereof are: fixed plate (4) connects firmly transfixion with vehicle frame.Fan-shaped frid (3) is sleeved on the interior round platform shoulder of fixed plate (41), its scalloped end is linked by screw (23), the other end is by slide rail (4) axially locating, the inboard end of fixed plate (41) fixedly is equipped with slide rail (4) by screw (42), and the other end is equipped with upper saw pulley (13), spring (15) and wire rope (14), (16).Two bearing outer rings (5) are linked by screw (39), and the one end is equipped with slide block (37) by screw (38), they can be between slide rail (4) linear slide; Its other end has two cylinder screws (6), also can use slide block, slides in the groove of fan-shaped frid (3).When tense wire rope (14), drive frid (3) and rotate, and the groove housing washer (5) of frid (3) and foreign steamer (1) move right, thereby increasing centre distance increases rotating ratio; When unclamping steel wire (14), spring (15) rotates frid (3) by wire rope (16), and bearing outer ring (5) and foreign steamer (1) are moved to the left, thereby reduces centre distance to reduce rotating ratio.Variable speed drive structure and working procedure thereof are: interior wheel (35) is a driving wheel, it passes to foreign steamer (1) to rotation by the connecting rod (36) that hinge or bearing connect, and foreign steamer (1) is passed to ratchet (2) to rotation by ratchet (12) or several ratchets, has so just formed the two stage speed change transmission.Can also pass through the ratchet transmission to interior wheel (35) and foreign steamer (1), so just constitute the transmission of secondary click speed change, this speed change gear itself also is a kind of one-way clutch.
In the 4th embodiment shown in Figure 9, form by variable speed drive, control gear and one-way clutch three parts.The structure of its control gear is the same with the 3rd embodiment with working procedure, no longer explanation.The structure and the working procedure of variable speed drive are: setscrew nut (50) will be taken turns (48) and interior wheel (35) axially locating by back-up ring (49), bearing (47) in the secondary.Fixed plate (41) is by outer cover (40) and screw (24), bearing (46), fan-shaped frid (3), bearing outer ring (5) and bearing (45), with foreign steamer (1) and the whole axially locating of above-mentioned parts.Interior wheel (35) is a driving wheel, and it passes to foreign steamer (1) by connecting rod (36) with rotation, and foreign steamer (1) is passed to wheel (48) in the secondary to rotation by secondary connecting rod (51) again, has constituted the two stage speed change transmission like this.The structure and the working procedure of one-way clutch are: setscrew nut (35) is by back-up ring (56), bearing (59), roller (57), ratchet wheel (54), and sleeve (52) is with this mechanism's axially locating.Wheel (48) is passed to output wheel (58) by key (53), ratchet wheel (54), roller (57) with rotation in the secondary.In the rotating speed of output wheel (58) surpasses secondary, during wheel (48) rotating speed, can do " surmounting " and move.Can also adopt the forms such as gear, ratchet, friction wheel of normal separated state before and after the one-way clutch, make it engagement, the vehicle traction part is rotated synchronously with the driven portion.Also can be taking turns (48) in the secondary as input shaft, interior wheel (35) is an output shaft, this moment, one-way clutch will be contained on the output shaft [interior wheel (35)]; Or one-way clutch and output shaft be installed separately, and connect transmission by gear, sprocket wheel, belt pulley, connecting rod or friction wheel.
Claims (4)
1. eccentric angle speed-change variable drive, it is made up of foreign steamer (1), interior wheel (35), connecting rod (36) or ratchet (12), one-way clutch and control gear etc., it is characterized in that:
A. wheel (35) is arranged in the circumference of foreign steamer (1) in, rotates by connecting rod (36) or ratchet (12) transmission, constitutes variable speed drive;
B. the output shaft of variable speed drive will rotate output by one-way clutch;
C. the centre distance of foreign steamer in controlling by control gear.
2. according to the described eccentric angle speed-change variable drive of claim 1, it is characterized in that:
A. foreign steamer (1) and interior wheel (35) driving wheel and follower relation each other, a pair of in the foreign steamer transmission constitute the transmission of one-level speed change, the transmission of many internally foreign steamer transmission combinations formation multi-change speeds;
B. one-way clutch adopts click form or roller friction type, can be contained on the variable speed drive, also can be installed separately with variable speed drive;
C. control gear can adopt frid (3), slide rail (4) to wait and control interior foreign steamer centre distance, or adopts modes such as wire spring, worm and gear, connecting rod, cam, gear to control interior foreign steamer centre distance.
3. according to claim 1,2 described eccentric angle speed-change variable drives, it is characterized in that: the connecting rod (36) that interior wheel (35) and foreign steamer (1) link by hinge or bearing carries out transmission, and the rotation of variable speed drive output will be exported through one-way clutch; Interior wheel or foreign steamer also can adopt ratchet (2) form of fillet tooth root, and carry out transmission by round end ratchet (12) or several round end ratchets, and itself also constitutes a kind of one-way clutch, can directly export so the output shaft of variable speed drive rotates.
4. according to claim 1,2 described eccentric angle speed-change variable drives, it is characterized in that: rotate frid (13), can drive foreign steamer (1) center and do directed slippage along slide rail (4), thus foreign steamer centre distance in changing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95111592 CN1124829A (en) | 1995-04-09 | 1995-04-09 | Eccentric angle speed-change variable drive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95111592 CN1124829A (en) | 1995-04-09 | 1995-04-09 | Eccentric angle speed-change variable drive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1124829A true CN1124829A (en) | 1996-06-19 |
Family
ID=5078865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95111592 Pending CN1124829A (en) | 1995-04-09 | 1995-04-09 | Eccentric angle speed-change variable drive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1124829A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105365547A (en) * | 2014-08-25 | 2016-03-02 | 本田技研工业株式会社 | Continuously variable transmission mechanism |
| CN111288137A (en) * | 2018-12-06 | 2020-06-16 | 周承岗 | Multiphase common rail pulse type stepless speed changer |
-
1995
- 1995-04-09 CN CN 95111592 patent/CN1124829A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105365547A (en) * | 2014-08-25 | 2016-03-02 | 本田技研工业株式会社 | Continuously variable transmission mechanism |
| CN111288137A (en) * | 2018-12-06 | 2020-06-16 | 周承岗 | Multiphase common rail pulse type stepless speed changer |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |