CN2229578Y - Gear booster stageless speed variator - Google Patents
Gear booster stageless speed variator Download PDFInfo
- Publication number
- CN2229578Y CN2229578Y CN 95222787 CN95222787U CN2229578Y CN 2229578 Y CN2229578 Y CN 2229578Y CN 95222787 CN95222787 CN 95222787 CN 95222787 U CN95222787 U CN 95222787U CN 2229578 Y CN2229578 Y CN 2229578Y
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- driving
- gear
- intermediate gear
- click
- eccentric
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Abstract
The utility model relates to a mechanical driving device, particularly a gear booster stageless speed variator. The utility model is provided with n movable middle gears which can equally divided the center angle of a driving disk into n small angles, and the driving ratchet pawls of the middle gears. The utility model also comprises booster driven eccentric gears which are engaged with the middle gears and successively engaged with the driving ratchet pawls of the middle gears, and output shafts which are in eccentric drive coupling with the eccentric gears. In addition, the utility model is also provided with a variable-speed device, which is formed by means that the eccentric gears are controlled by a variable speed rod, and pushed by a slide block and the engagement track of the slide block to change the eccentric distance and the booster drive arc length. The utility model has the advantages of big transmitted power, high efficiency, large speed range and good smoothness.
Description
The utility model relates to mechanical transmission, particularly adopts the stepless speed variator of gear relay transmission.
Stepless speed variator in the existing mechanical transmission adopts conical surface friction transmission or oil film backguy drive mechanism, and its transmitted power is less, efficient is lower, functional reliability is poor, the material requirements height.
Given this, the purpose of this utility model is to provide that a kind of transmission power is big, the stepless speed variator of the gear relay transmission of reliable operation.
Gear stepless speed variator of the present utility model (referring to accompanying drawing), comprise support (1), the input shaft (2) that driving disc (3) are arranged on the support, the output shaft (15) that driven disc (16) are arranged, speed change lever (49 is arranged, 50) gear, have with driving disc and connect, can be 360 ° of central angles of branch driving disc such as n respectively and on annulus (13) inner peripheral surface, make n the intermediate gear (6 that move, 7,8,9,10,11) and n driving click (20,21,22,23,24,25), with the engagement of each intermediate gear and with its driving click successively with the corresponding engagement rail (39 of 360 °/n central angle alpha, 40) contact and be the relay-type engagement driving, be the relay-type driving mechanism that eccentricity gear (12) that eccentric gearing connects constitutes with driven disc again, above-mentioned gear has the annulus seat (31) that cooperates and connect with annulus with the perpendicular chute (34) of support, cooperates with the arc chute (35) of annulus seat, and link with two change bar speed arranged in a crossed manner respectively and do reversing motion each other and promote above-mentioned intermediate gear and move, be stacked engagement rail coupling and make long two the variable slide blocks (37 of rail with two respectively again, 38).
Above-mentioned said n equals 6, and 6 intermediate gears and 6 driving clicks thereof are promptly arranged.Hinge is associated with an isometric connecting rod (4) separately between above-mentioned intermediate gear and driving disc.
There is at least one uniform columniform driving pin (14) in the hub portion of above-mentioned eccentricity gear, has correspondence to hold the driving hole (17) that driving pin is the transmission of side face contact eccentric on the above-mentioned driven disc.
Above-mentioned driving click is sharp peach shape, hinge is associated in intermediate gear shaft (5) and cuts with scissors mutually on the short connecting rod (18) of connection, on the intermediate gear shaft also hinge be associated with that an end cooperates with position limit pin (26) on the driving click, the other end and the contacted shift fork of pressure ring (48) (27) that supports by the spring on the pinion stand (47), rod spring (29) and ratchet spring (30) are arranged respectively between intermediate gear shaft and driving click axle (19) and short connecting rod.
Have on the above-mentioned slide block and the contacted slide bar of pressure ring (48) (41,42), hinge is associated with the ratchet (43,44) that cooperates with ratchet ring (36) on the pinion stand on this slide bar.The middle part of above-mentioned two speed change levers cover join be connected with that interlock regulating block (55), one end are hinged with two slide blocks respectively, the other end cooperates with two oblique chutes (53,54) on the support respectively, the angle β between this two oblique chute equals α.
During the utility model operation, motivational drive input shaft and driving disc thereof rotate, all connecting rod and intermediate gear thereof and driving click rotate around input shaft with driving disc, the driving click of one of them intermediate gear enters by the engagement rail on the slide block of speed change lever control, makes the engagement of driving click and eccentricity gear and the rotation of driving eccentricity gear.At this moment, this intermediate gear is static and do not rotate relative to eccentricity gear, and all the other intermediate gears transfer to lost motion with eccentric tooth.When this driving click left the engagement rail, the driving click of adjacent next intermediate gear entered the engagement rail and meshes with eccentricity gear, and continuing drives the eccentricity gear rotation.According to above-mentioned working procedure, all driving click enters engagement rail and eccentricity gear engagement successively circularly, relay-type ground drives eccentricity gear and rotates, and the eccentric drive mechanism that constitutes through the driving hole of the driving pin of eccentricity gear, driven disc drives output shaft and rotates and outputting power again.
Gear of the present utility model is arranged on the whole intermediate gear movings range of the constraint ground annulus seat.Promote speed change lever, make two slide blocks do reverse each other motion, promptly draw close mutually and away from motion, contacted driving click of engagement rail and intermediate gear thereof on two slide blocks promotion simultaneously and the slide block, promote eccentricity gear through this intermediate gear and do moving up and down of integrity along perpendicular chute together with annulus seat and all the other intermediate gears, 360 ° of central angle ground that make each intermediate gear be branch driving discs such as n move on the inner peripheral surface of annulus, thereby change the centre distance between eccentricity gear and driving disc, i.e. eccentric distance e; Change on two slide blocks mutual overlap length of engagement rail, i.e. the total length of the pairing engagement rail of 360 °/n central angle alpha changes the linear velocity of contact points, changes the rotating speed of eccentricity gear, realizes speed governing.Because under the promotion of speed change lever, the change of the mutually reverse displacement amount of two slide blocks is the slips that rely on slide block, this slip can realize stepless slip, so the utility model is the stepless speed variator of a kind of gear relay-type transmission.
Gear stepless speed variator of the present utility model has following tangible advantage and significant effect.
One, the utility model adopts driving disc to connect movably intermediate gear and driving click thereof, with eccentricity gear relay engagement driving movably, again through the structure of eccentric gearing driven disc, be a kind of eccentricity gear that changes with respect to the throw of eccentric at driving disc, driven disc center and realize the gear shift of speed change, have big, the advantages such as efficient is high, reliable operation of transmitted power that gear transmission has.
Two, the utility model adopts the sliding type speed change lever, the promotion slide block slides, promote the throw of eccentric of eccentricity gear change with respect to driving disc, driven disc, the gear of the number of teeth of the eccentricity gear of change unit time relay transmission each time, it is a kind of gear type stepless speed changing mechanism, it is big to have slewing range, and speed change is reliable, speed change is nimble, the stationarity advantages of higher.
Three, the utility model is compared with oil film boom guy type stepless speed changing mechanism with friction type, and lower to the requirement of material, processing technology, lubricated wet goods, its manufacture cost is lower, is easy to processing, maintenance.
Below, use embodiment and accompanying drawing thereof again, the utility model is described in further detail.
Brief description of drawings.
Fig. 1 is the structural representation of a kind of gear stepless speed variator of the present utility model.Show the vertical profile TV structure.
Fig. 2 is the transmission schematic representation of Fig. 1 when exporting high speed.
Fig. 3 is the transmission schematic representation of Fig. 1 when exporting low speed.
Fig. 4 is driving disc, the connecting rod of Fig. 1, the structural representation of intermediate gear.
Fig. 5 is A-A broken section structural representation of Fig. 1.
Fig. 6 is Fig. 1 gear partial structurtes schematic representation.
Fig. 7 is the left TV structure schematic representation of Fig. 6.
Fig. 8 is the plan structure schematic representation of Fig. 6.
Fig. 9 is B-B broken section structural representation of Fig. 1.
Figure 10 is driving click and the eccentricity gear meshing transmission structure schematic representation of Fig. 1.
Figure 11 is the intermediate gear of Fig. 1 and the structural representation of driving click thereof.
Figure 12～14th, two adjacent driving clicks of Fig. 1 are made heterodromous each other structural representation.Figure 13 is that deceleration regime, Figure 14 are the speedup state.A shows stress among the figure, and b is a driving click beat displacement state.
A kind of gear stepless speed variator of the present utility model, as shown in drawings.Constitute by support, driving mechanism, gear etc.
Above-mentioned support 1 is the casing shape of common structure.
Above-mentioned driving mechanism has input shaft 2 that is rotatably supported on the support and the driving disc 3 that connects firmly thereof.With the driving disc center is symmetry, cuts with scissors in uniform way with hinge and is associated with isometric n bar connecting rod 4, when the n value is 6,6 connecting rods is arranged promptly, and the line at every connecting rod hinge and center constitutes 360 ° of central angles of 6 driving discs such as branch such as grade, and every five equilibrium central angle alpha equals 60 °.Cut with scissors separately with intermediate gear shaft 5 respectively at the far-end of each connecting rod and to be associated with intermediate gear, promptly have six intermediate gears 6,7,8,9,10,11.With of eccentricity gear 12 engagement of each intermediate gear with annular, again annulus 13 is enclosed within outside each intermediate gear shaft, each intermediate gear shaft contact with the annulus inner peripheral surface and retrained by annulus, make each intermediate gear move in annulus on equipped eccentricity gear maintenance mesh.Annulus 13 is concentric rotatable the connection with eccentricity gear 12, can be made into to have between the two by a plurality of steel balls to be arranged in annulus, becomes to be similar to the such structure of thrust bearing.Symmetry is shaped on columniform four driving pins 14 that connect firmly in uniform way on the anchor ring of eccentricity gear 12.With input shaft 2 concentricity lines rotationally suit and be bearing in support 1 and on output shaft 15, the driven disc 16 that connects firmly is arranged.Symmetry is shaped on and above-mentioned driving pin 14 driving hole 17 one to one in uniform way on this driven disc, the diameter of this driving hole is greater than driving pin and eccentricity gear do to be moved and when rotating, driving hole contacts and transmission with the interior outer cylinder of driving pin, constitute eccentric drive mechanism, this mechanism also can adopt the universal shaft coupling structure.In the heart distance in above-mentioned eccentricity gear and driving disc and the driven disc, promptly throw of eccentric is e.
On above-mentioned each intermediate gear shaft 5, also each hinge is associated with the short connecting rod 18 of bar shaped, and the far-end of each short connecting rod cuts with scissors separately with driving click axle 19 and is associated with driving click 20,21,22,23,24,25.Above-mentioned driving click is sharp peach shape, and it is inwardly most advanced and sophisticated that it can be meshed with the gear teeth of eccentricity gear 12, and the round slip surface of the other end is outside, connects firmly in the end that round slip surface is arranged to be shaped on columniform position limit pin 26.Have hinge to be associated in the shift fork 27 of the bending rod on the intermediate gear shaft 5, the prong fork of shift fork one end on position limit pin, its other end be control end 28 outward.Between intermediate gear shaft 5 and driving click axle 19 and short connecting rod 18, rod spring 29 and ratchet spring 30 are arranged respectively.
Above-mentioned gear has the annulus seat 31 that fuses with above-mentioned annulus 13, and respectively there is the slide rail 32 of strip the both sides of annulus seat, and the slide rail upper and lower end parts is equipped with the steel ball 33 of rolling.Vertically open in support two inboards and to be shaped on the perpendicular chute 34 that matches with slide rail and steel ball.On the annulus seat below the annulus 13, the arc chute 35 with the concentric circular arc of annulus is arranged.There is the ratchet ring 36 of the annular of concentric setting this arc chute below.In arc chute, be fitted with two slide blocks 37,38 of box-shaped.This two upper end of slide block has the engagement rail 39,40 of the arc that joins together respectively.Abutting end overlaid on the Vertical direction of slider surface of two engagement rails, total thickness should match with the round slip surface of above-mentioned driving click.On two slide blocks, respectively have and chimeric slide bar 41 and 42 of can slide up and down of its chute.Each hinge is associated with in the same way the ratchet 43 that is provided with and 44 and limited post 45 and spring 46 on two slide bars.On the annulus seat, have above slide bar with annulus 13 is concentric and be provided with and with the pressure ring 48 of the annular of spring 47 installations of compression-type.The outer cylinder of pressure ring 48 presses with slide bar 41 and 42 upper-end surfaces, and inner cylinder can contact with the control end 28 of shift fork 27 of driving click in the engagement.Also cut with scissors the speed change lever 49 and 50, two speed change levers that are associated with bar shaped separately and become arranged in a crossed manner on two slide blocks, the other end of speed change lever respectively has angled-lift splits 51 and 52.Two of support bottoms respectively have the oblique chute 53 and 54, two chutes that match with angled-lift splits to equal above-mentioned central angle alpha with angle β, promptly 36O °/n=60 °.Suitable position at two speed change levers middle part is equiped with the interlock regulating block 55 that connects the two.The interlock regulating block is ︺ shape, and its two ends have respectively with speed change lever and are the slidably sleeve part of assembling.
During the operation of this speed changer, promote interlock regulating block 55 up and down, rely on oblique chute 53 and 54, arc chute 35 makes two speed change levers 49,50 do parallel motion separately, and two slide blocks 37,38 are drawn close and away from slip mutually along arc chute 35, after slip stops, rely on the engagement of ratchet 43,44 and ratchet ring 36 and locate, after two engagement rails, 39,40 abutting ends on this moment two slide blocks 37,38 are overlapping, the total length and the corresponding arc length of driving disc central angle alpha that mesh rail are matched.The slip of above-mentioned two slide blocks promotes to enter the driving click of engagement rail simultaneously, promotes eccentricity gear through intermediate gear again and moves together with the annulus seat, and variation and definite eccentricity gear are with respect to the eccentric distance e of driving disc.
When 2 rotations of motivational drive input shaft, driving disc 3 rotates, six connecting rods 4 and six intermediate gears 6,7,8,9,10,11 thereof on it rotate, in enter engagement rail 40 with the round slip surface of the driving click 20 of gear 6, its most advanced and sophisticated and eccentricity gear 12 engagements, drive eccentricity gear 12 and rotate,, drive output shaft 15 rotation outputting powers through the eccentric gearing of driving pin 14, driving hole 17.At this moment, intermediate gear 6 is static with respect to eccentricity gear, and all the other driving clicks 21,22,23,24,25 leave eccentricity gear under the effect of rod spring 29, makes corresponding idle gear 7,8,9,10,11 idle running.Make driving click 20 arrive 39 when terminal when driving disc 3 turns to through engagement rail 40,39, driving click 21 enter engagement rail 40 tops and with eccentricity gear 12 engagements, continue driving click 20 and drive eccentricity gear 12 and rotate.At this moment, intermediate gear 7 is static and do not rotate with respect to eccentricity gear, and driving click 20 breaks away from eccentricity gear 12 under rod spring 29 effects, and intermediate gear 6 begins idle running.Continue this, driving click 22,23,24,25 enters the engagement rail successively in succession, and relay drives eccentricity gear circularly successively, drives output shaft 15 through driving pin 14, driving hole 17, driven disc 16.
When needs slow down, upwards promote interlock regulating block 55, make two slide blocks 37,38 be subjected to the promotion of speed change lever 49,50 respectively, this thrust comprises makes close thrust in opposite directions of slide block 33,38 and up thrust.Thrust makes ratchet 43 on the slide block 37 be subjected to the ratchet opposite force of ratchet ring 36 and clockwise rotates in opposite directions, and two slide blocks are done to move in opposite directions, disappears until thrust, and ratchet 43 is under spring 46 effects, with ratchet ring 36 engagement location.Up thrust makes slide block 41 do up moving, it is up to promote pressure ring 48 left ends, pressure ring 48 inner cylinder promote the to be meshed control end 28 of shift fork 27 of driving click 20 of transmission with eccentricity gear, prong promotion driving click 20 through shift fork 27 clockwise rotates around its driving click axle 19, makes the tip disengaging of driving click 20 and the engagement of eccentricity gear 12.At this moment, the ratchet 44 on the slide block 38 keeps engagement with ratchet ring 36, and slide block 38 and slide bar 42 thereof are not up, promptly do not promote the shift fork 27 of driving click 21, and driving click 21 keeps engagement driving with eccentricity gear 12.Move near after desired location to intermediate gear 7 and driving click 21 thereof together with intermediate gear 6 until driving click 20, with eccentricity gear 12 engagements, eccentricity gear 12 is moved on the whole together with annulus 13, whole intermediate gear and driving click thereof, dwindled the eccentric distance e at 12 pairs of driving disc centers of eccentricity gear, increased on the slide block 37 and 38 overlap length of two engagement rails and to shorten total rail long, shortened the transmission arc length that driving click each time is meshed with eccentricity gear, thereby reduced the eccentricity gear rotating speed, realized slowing down.
Otherwise, when the needs speedup, promote interlock regulating block 55 downwards, each assembly of gear is done and the opposite action of above-mentioned deceleration program, two slide blocks 37,38 do on the contrary to separation and move down, the eccentric distance e at 12 pairs of driving disc centers of eccentricity gear is increased, make the transmission arc length increase of driving click and eccentricity gear engagement each time, thereby improved the eccentricity gear rotating speed, realized speedup.
Claims (4)
1, gear stepless speed variator, comprise support (1), the input shaft that driving disc (3) are arranged (2) on the support, the output shaft (15) that driven disc (16) are arranged, speed change lever (49 is arranged, 50) gear, it is characterized in that having with driving disc and connect, can be 360 ° of central angles of branch driving disc such as n respectively and on annulus (13) inner peripheral surface, make n the intermediate gear (6 that move, 7,8,9,10,11) and n driving click (20,21,22,23,24,25), with the engagement of each intermediate gear and with its driving click successively with the corresponding engagement rail (39 of 360 °/n central angle alpha, 40) contact and be the relay-type engagement driving, be the relay-type driving mechanism that eccentricity gear (12) that eccentric gearing connects constitutes with driven disc again, above-mentioned gear has the annulus seat (31) that cooperates and connect with annulus with the perpendicular chute (34) of support, cooperates with the arc chute (35) of annulus seat, and link with two speed change levers arranged in a crossed manner respectively and do reversing motion each other and promote above-mentioned intermediate gear and move, be stacked engagement rail coupling and make long two the variable slide blocks (37 of rail with two respectively again, 38).
2, gear stepless speed variator as claimed in claim 1, it is characterized in that said n equals 6, cut with scissors separately between said each intermediate gear and the driving disc and be associated with an isometric connecting rod (4), the hub portion of said eccentricity gear has at least one uniform columniform driving pin (14), has correspondence to hold the driving hole (17) that driving pin is the transmission of side face contact eccentric on the said driven disc.
3, gear stepless speed variator as claimed in claim 1 or 2, it is characterized in that said driving click is sharp peach shape, hinge is associated in intermediate gear shaft (5) and cuts with scissors mutually on the short connecting rod (18) of connection, on the intermediate gear shaft also hinge be associated with that an end cooperates with position limit pin (26) on the driving click, the other end and the contacted shift fork of pressure ring (48) (27) that supports by the spring on the pinion stand (47), rod spring (29) and ratchet spring (30) are arranged respectively between intermediate gear shaft and driving click axle (19) and short connecting rod.
4, gear stepless speed variator as claimed in claim 3, it is characterized in that having on the said slide block and the contacted slide bar of pressure ring (48) (41,42), hinge is associated with the ratchet (43,44) that cooperates with ratchet ring (36) on the annulus seat on this slide bar, the middle part of said two speed change levers cover is joined and is connected with interlock regulating block (55), one end and cooperates with two oblique chutes (53,54) on the support respectively with two slide blocks hinge connection, the other end respectively, and the angle β between this two oblique chute equals α.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95222787 CN2229578Y (en) | 1995-11-07 | 1995-11-07 | Gear booster stageless speed variator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95222787 CN2229578Y (en) | 1995-11-07 | 1995-11-07 | Gear booster stageless speed variator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2229578Y true CN2229578Y (en) | 1996-06-19 |
Family
ID=33870041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95222787 Expired - Fee Related CN2229578Y (en) | 1995-11-07 | 1995-11-07 | Gear booster stageless speed variator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2229578Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100406776C (en) * | 2005-06-18 | 2008-07-30 | 刘海平 | Transmission with balance device |
| CN110800711A (en) * | 2019-11-21 | 2020-02-18 | 广州千睿信息科技有限公司 | Mosquito killing lamp |
-
1995
- 1995-11-07 CN CN 95222787 patent/CN2229578Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100406776C (en) * | 2005-06-18 | 2008-07-30 | 刘海平 | Transmission with balance device |
| CN110800711A (en) * | 2019-11-21 | 2020-02-18 | 广州千睿信息科技有限公司 | Mosquito killing lamp |
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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 |