CN102230524A - High-torque continuously variable transmission - Google Patents
High-torque continuously variable transmission Download PDFInfo
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- CN102230524A CN102230524A CN2011100845432A CN201110084543A CN102230524A CN 102230524 A CN102230524 A CN 102230524A CN 2011100845432 A CN2011100845432 A CN 2011100845432A CN 201110084543 A CN201110084543 A CN 201110084543A CN 102230524 A CN102230524 A CN 102230524A
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Abstract
The invention discloses a high-torque continuously variable transmission, which comprises a box body, an input shaft, an intermediate shaft I, a driving belt wheel I, a driven belt wheel I, a driving belt wheel II, an intermediate shaft II, a driven belt wheel II, an output shaft, a shifting fork, a shifting fork driving device, and a planet gear mechanism which is in transmission fit with the input shaft and the intermediate shaft II, wherein the driving belt wheel I is in transmission fit with the driven belt wheel I through a metal belt I; the driving belt wheel II is in transmission fit with the driven belt wheel II through a metal belt II; and the intermediate shaft II is in transmission fit with the planet gear mechanism. By the transmission, one part of power is directly transmitted to the planet gear mechanism through the input shaft, one part of power is input into the planet gear mechanism through the intermediate shaft, the transmission torque and transmission efficiency can be greatly improved due to differential transmission, and the power loss is reduced; moreover, the transmission combines metal belt variable speed with planet gear mechanism variable speed, a speed change ratio has a wider range, the variable speed performance is better, and the torque transmission capacity of the transmission can be improved due to a torque loading device.
Description
Technical field
The present invention relates to a kind of speed changer, particularly a kind of stepless speed variator.
Background technique
Stepless speed variator adopts driving belt and the variable driven wheel of the working diameter incompatible transferring power that matches, and can realize continuously changing of velocity ratio, thus the optimum Match of the power train of obtaining and engine operating condition.
Prior art pin plate chain metal tape stepless speed variator is for realizing stepless change, adopt the V-type groove of two conical surface wheel formations and the V-type carrying tablet of metal tape that combination is installed, change the variation of metal tape through hydraulic control system conversion V-type well width then to the axis radial location, realize that promptly the radius ratio between driving wheel and the follower changes, thereby realize the stepless transformation of output speed.Though this kind structure has realized the infinite variable speed purpose of speed changer, also there is the defective of following aspects.The one, not enough because of the angle of V-type groove big (18 °-22 °) to the wedging frictional force of metal tape V-type carrying tablet, the transmission power that can reach less (being no more than 200Nm); The 2nd, because of hydraulic control system consumes part power, cause transmission efficiency lower (being lower than 90%); The 3rd, because of pin plate chain metal tape accuracy of manufacturing requires high and necessary configuration hydraulic control system, cause manufacture cost higher.
Therefore need improve stepless speed variator of the prior art,, improve transmission efficiency, reduce manufacture cost to increase its driving torque.
Summary of the invention
In view of this, the purpose of this invention is to provide a kind of large torque stepless speed changer, it has that slewing range is wide, transmission efficiency is high, driving torque is big and characteristics such as low cost of manufacture.
A kind of large torque stepless speed changer of the present invention, comprise casing, the input shaft that is arranged on the casing and is rotatably assorted with casing, one of the centre of axis and input shaft parallel axes, be arranged on the input shaft and the driving pulley I coaxial with input shaft, be set up in parallel in middle one go up and with a middle coaxial driven pulley I and driving pulley II, be coated at input shaft and with two of transfer input shaft centres movingly, in the middle of being arranged at two go up and with middle two coaxial driven pulley II, planetary gears that cooperates with input shaft and middle two shaft drive and the output shaft that is arranged on the casing and is rotatably assorted with casing, driving pulley I and driven pulley I cooperate by metal tape I transmission, and driving pulley II and driven pulley II cooperate by metal tape II transmission;
Be provided with the shift fork that pastes mutually with end face between described driven pulley I and two of driving pulley II adjacent end faces, described driving pulley I and two of driven pulley II adjacent end faces directly paste mutually and cooperate or paste cooperation mutually by being arranged on two antifriction spacing bodies between adjacent face;
Described casing is provided with shift fork along middle axially movable shift fork drive unit;
The sun gear of described planetary gears and the clutch end of input shaft are in the coaxial secure fit of circumferencial direction, the clutch end that the planet carrier of planetary gears and centre are two is in the circumferencial direction secure fit, the planet wheel of planetary gears is with meshing in the external toothing, external toothing with the power intake of output shaft in the coaxial secure fit of circumferencial direction;
Further, the single stope wheel B that described driving pulley I comprises the single stope wheel A that is fixedly installed on the input shaft and is coated at input shaft, described input shaft and single stope take turns B vertically single-degree-of-freedom be slidingly matched;
Described driven pulley I comprises single stope wheel C that is fixedly installed on middle one and the single stope wheel D that is coated at middle, described single stope wheel D with middle one vertically single-degree-of-freedom be slidingly matched, single stope wheel D is arranged on the casing by rolling bearing;
Described driving pulley II comprises single stope wheel E that is fixedly installed on middle one and the single stope wheel F that is coated at middle, described single stope wheel F with middle one vertically single-degree-of-freedom be slidingly matched, single stope wheel F is fixedly set on the casing by rolling bearing;
Described driven pulley II comprise be fixedly installed in the middle of on two the single stope wheel and be coated in the middle of two single stope wheel H, described single stope wheel H with middle two vertically single-degree-of-freedom be slidingly matched;
Described single stope wheel C is adjacent with single stope wheel E, and described shift fork is arranged between single stope wheel C and the single stope wheel E;
Described single stope wheel B is adjacent with single stope wheel H;
Further, described antifriction spacing body is thrust-bearing, Thurst washer or plane bearing;
Further, also comprise the moment of torsion deceleration loading device, described moment of torsion deceleration loading device comprises the electric motor I that is fixedly installed on the casing, worm screw, with middle axis of guide that coaxial and relative casing fixedly installs, be coated at the axis of guide and with the afterburning leading screw of axis of guide Spielpassung and the worm gear that is coated at afterburning leading screw and cooperates with worm drive, described electric motor I cooperates with worm drive, described worm and wheel transmission cooperates, described worm gear cooperates with afterburning threads of lead screw, its outer bearing ring of rolling bearing that cooperates with single stope wheel F is coated at the axis of guide in the mode that single-degree-of-freedom vertically moves, and described afterburning leading screw is used for applying end thrust to outer bearing ring;
Further, in two working surfaces that described driving pulley I, driven pulley I, driving pulley II and driven pulley II and metal tape fit, it is conical surface that a working surface is arranged, and has one to be the plane;
Further, described metal tape comprises swelling pin, steel wire rope loop and the some friction wedge blocks that cooperate with pulley groove, and described friction wedge block is set up in parallel on steel wire rope loop, and described swelling pin embeds the friction wedge block and contacts with the steel wire rope loop extruding;
Further, described driving pulley I is two groups of adjacent settings arranged side by side, and described driven pulley I is two groups of corresponding settings with driving pulley I; Described driving pulley II is two groups of adjacent settings arranged side by side, and described driven pulley II is two groups of corresponding settings with driving pulley II;
Further, described shift fork drive unit comprises electric motor I I, worm screw, the worm gear that cooperates with worm screw that is fixedly installed on the casing and is fixedly installed on worm-wheel shaft on the casing, described electric motor I I cooperates with worm drive, worm gear is provided with the external thread sleeve coaxial with it, described external thread sleeve vertical with shift fork and with the shift fork screw-thread fit;
Further, described input shaft is provided with the measure speed gears coaxial with it, and described casing is provided with the tachogenerator I corresponding with measure speed gears, and the output terminal fixed jacket of described output shaft has flange plate; Described flange plate periphery is provided with the tooth that tests the speed, and described casing is provided with the tachogenerator II corresponding with the tooth that tests the speed;
Further, be with axially displaceable pressure transducer outside going back on the described axis of guide, described pressure transducer is arranged between outer bearing ring and the afterburning leading screw.
Beneficial effect of the present invention: a kind of large torque stepless speed changer of the present invention, its power part is directly transported to planetary gears by input shaft, a part is by jack shaft input planet gear mechanism, and the raising transmission efficiency that the shunting transmission can be very big reduces power loss; This speed changer combines metal tape speed change and planetary gears speed change, and the gear ratio excursion is wide, and gearshift performance is good; The moment of torsion deceleration loading device of this speed changer setting can strengthen belt wheel with the frictional force between metal tape, improves output torque.
Description of drawings
Below in conjunction with drawings and Examples the present invention is further described.
Fig. 1 is a kind of mode of execution overall structure sectional view of speed changer of the present invention;
Fig. 2 is the another kind of mode of execution overall structure sectional view of speed changer of the present invention;
Fig. 3 is a shift fork drive unit phantom;
Fig. 4 is the sectional view of Fig. 2 along A-A;
Fig. 5 is the sectional view of moment of torsion deceleration loading device part;
Fig. 6 is the metallic strip structures schematic representation;
Fig. 7 is the sectional view of Fig. 5 along B-B.
Embodiment
Fig. 1 is a kind of mode of execution overall structure sectional view of speed changer of the present invention; Fig. 2 is the another kind of mode of execution overall structure sectional view of speed changer of the present invention; Fig. 3 is a shift fork drive unit phantom; Fig. 4 is the sectional view of Fig. 2 along A-A; Fig. 5 is the sectional view of moment of torsion deceleration loading device part; Fig. 6 is the metallic strip structures schematic representation; Fig. 7 is the sectional view of Fig. 5 along B-B.
As shown in the figure, a kind of large torque stepless speed changer of present embodiment, comprise casing 1, the input shaft 2 that is arranged on the casing and is rotatably assorted with casing, one 3 of the centre of axis and input shaft parallel axes, be arranged on the input shaft and the driving pulley I coaxial with input shaft, be set up in parallel in middle one go up and with a middle coaxial driven pulley I and driving pulley II, be coated at input shaft and with two 4 of transfer input shaft centres movingly, in the middle of being arranged at two go up and with middle two coaxial driven pulley II, planetary gears that cooperates with input shaft and middle two shaft drive and the output shaft 5 that is arranged on the casing and is rotatably assorted with casing, driving pulley I and driven pulley I cooperate by metal tape I 6 transmissions, and driving pulley II and driven pulley II cooperate by metal tape II7 transmission;
Be provided with the shift fork 16 that pastes mutually with end face between described driven pulley I and two of driving pulley II adjacent end faces; Described driving pulley I can directly paste cooperation mutually or paste cooperation mutually by being arranged on two antifriction spacing bodies between adjacent face with two of driven pulley II adjacent end faces, in the present embodiment, two adjacent end faces of driving pulley I and driven pulley II are provided with antifriction spacing body 17, antifriction spacing body 17 is a Thurst washer, thrust bearing shim both can transmit thrust, and and the friction factor between the single stope wheel is little, the power that consumes because of friction in rotation process is little, can improve useful horsepower, antifriction spacing body 17 also can adopt thrust-bearing or plane bearing in concrete enforcement certainly.Simultaneously in other embodiments, driving pulley I can directly paste mutually with two of driven pulley II adjacent end faces, is wholely set the material of antifriction on the end face, can reach effect of the present invention equally; Directly do not fit if on the end face antifriction material is not set, though also can realize the present invention, the power that consumes because of friction is bigger, and the overall performance of speed changer also can be relatively poor;
Described casing 1 is provided with shift fork 16 along middle axially movable shift fork drive unit;
The sun gear 18 of described planetary gears and the clutch end of input shaft are in the coaxial secure fit of circumferencial direction, the planet carrier 19 of planetary gears and middle two clutch end are in the circumferencial direction secure fit, the planet wheel 20 of planetary gears is with engagement in the external toothing 21, external toothing 21 with the power intake of output shaft in the coaxial secure fit of circumferencial direction.
In the present embodiment, external toothing 21 is made one with output shaft 5, and structural strength is good, the power transmission ability is stronger, and in concrete enforcement, external toothing 21 can be made the branch body structure with output shaft 5 certainly, fixedly be assembled together in mode, also can realize by link or welding; Casing 1 is made up of main casing and the Bearing Installation plate that is arranged on the main casing, and input shaft is with tapered roller bearing outward, and input shaft is arranged on the casing by tapered roller bearing, and output shaft is with ball bearing outward, and output shaft is arranged on the casing by ball bearing.
In the present embodiment, the single stope wheel B9 that described driving pulley I comprises the single stope wheel A8 that is fixedly installed on the input shaft 2 and is coated at input shaft 2, described input shaft 2 and single stope wheel B9 single-degree-of-freedom vertically are slidingly matched; Single stope wheel A8 and input shaft 2 are wholely set in the present embodiment, and be simple in structure, also can adopt the split setting certainly in concrete enforcement, again by fixedly being fitted to each other together; In the present embodiment, single stope wheel B9 is with input shaft 2 spline fitted, and is simple in structure, adopts flat key to cooperate certainly and also can realize the present invention;
In the present embodiment, described driven pulley I comprises single stope wheel C10 that is fixedly installed on middle one and the single stope wheel D11 that is coated at middle, described single stope wheel D11 with middle one vertically single-degree-of-freedom be slidingly matched, single stope wheel D11 is arranged on the casing by rolling bearing; Single stope wheel C10 and one 3 of centre are wholely set in the present embodiment, and be simple in structure, also can adopt the split setting certainly in concrete enforcement, again by fixedly being fitted to each other together; Single stope wheel D11 and middle one 3 spline fitted are simple in structure in the present embodiment, adopt flat key to cooperate certainly and also can realize the present invention; Simultaneously in different mode of executions, middle one 3 also can directly be arranged on casing by bearing, single stope wheel D11 is with middle spline fitted, and the locating piece that a location single-sided impeller D11 axial position is set on middle one or casing also can be realized the present invention;
In the present embodiment, described driving pulley II comprises single stope wheel E12 that is fixedly installed on middle one and the single stope wheel F13 that is coated at middle, described single stope wheel F13 with middle one vertically single-degree-of-freedom be slidingly matched, single stope wheel F13 is fixedly set on the casing by rolling bearing; Single stope wheel E12 and one 3 of centre are wholely set in the present embodiment, and be simple in structure, also can adopt the split setting certainly in concrete enforcement, again by fixedly being fitted to each other together; Single stope wheel F13 and middle one 3 spline fitted are simple in structure in the present embodiment, adopt flat key to cooperate certainly and also can realize the present invention; Simultaneously in different mode of executions, middle one 3 also can directly be arranged on casing by bearing, single stope wheel F13 is with middle spline fitted, and the locating piece that a location single stope wheel F13 axial position is set on middle one or casing also can be realized the present invention;
In the present embodiment, described driven pulley II comprise be fixedly installed in the middle of on two single stope wheel G14 and be coated in the middle of two single stope wheel H15, described single stope wheel H15 with middle two vertically single-degree-of-freedom be slidingly matched; Single stope wheel G14 and two 4 of centres are wholely set in the present embodiment, and be simple in structure, also can adopt the split setting certainly in concrete enforcement, again by fixedly being fitted to each other together; Single stope wheel H15 is with middle two 4 spline fitted, and is simple in structure, adopts flat key to cooperate certainly and also can realize the present invention; Two peripheries in centre in the present embodiment are with bearing, two of centres are arranged on by bearing on the Bearing Installation plate of casing, because of output shaft longer, middle two by Bearing Installation on the Bearing Installation plate, make output shaft and middle two rigidity better, help guaranteeing the stability of this speed changer in high speed rotating;
In the present embodiment, described single stope wheel C10 is adjacent with single stope wheel E12, and described shift fork 16 is arranged between single stope wheel C10 and the single stope wheel E12; Described single stope wheel B9 is adjacent with single stope wheel H15;
Certainly driving pulley I, driven pulley I, driving pulley II and driven pulley II are except above-mentioned mode of execution, can also there be other structure can realize the present invention, all can be as all single-sided impellers with cooperating, as long as corresponding axially locating part is set on casing or transmission shaft with its corresponding splined driveshaft.
Speed changer of the present invention is when speed change, move vertically by shift fork drive unit shift fork, one pulley groove groove width among driven pulley I or the driving pulley II is changed, thereby interlock takes place the pulley groove groove width that can make its excess-three belt wheel simultaneously changes, realize speed change, variable speed operation is simple, quick, and the gear ratio excursion is big;
Speed changer of the present invention, its power part is directly transported to planetary gears by input shaft, and a part is by jack shaft input planet gear mechanism, and the raising transmission efficiency that the shunting transmission can be very big reduces power loss; This speed changer combines metal tape speed change and planetary gears speed change, and the gear ratio excursion is wide, and gearshift performance is good.
Speed changer in the present embodiment also comprises the moment of torsion deceleration loading device, described moment of torsion deceleration loading device comprises the electric motor I 22 that is fixedly installed on the casing, worm screw 23, with middle axis of guide 24 that coaxial and relative casing fixedly installs, be coated at the axis of guide and with the afterburning leading screw 25 of axis of guide Spielpassung and the worm gear 26 that is coated at afterburning leading screw and cooperates with worm drive, described electric motor I 22 cooperates with worm screw 23 transmissions, described worm gear 26 and afterburning leading screw 25 screw-thread fit, its outer bearing ring 27 of rolling bearing that cooperates with single stope wheel F13 is coated at the axis of guide 24 in the mode that single-degree-of-freedom vertically moves, and described afterburning leading screw is used for applying end thrust to outer bearing ring.When needing to load moment of torsion, electric motor I 22 drives worm screw 23 and rotates, worm screw 23 drives worm gear 26 and rotates, when worm gear 26 rotates, promote afterburning leading screw 25 and move vertically, thereby make 25 pairs of outer bearing ring 27 applied thrusts of afterburning leading screw, outer bearing ring 27 passes to single-sided impeller F13 with thrust, thereby the frictional force between single-sided impeller F13 and the metal tape is increased, reach the effect that increases transmitting torque; When reaching required torque, can stop electric motor I 22, the sustainable maintenance of moment of torsion; Otherwise electric motor I 22 can drive worm screw 23 and rotate the unloading moment of torsion, and loading and the unloading power that moment of torsion consumed are little.Certainly in concrete enforcement, the moment of torsion deceleration loading device also can adopt oil cylinder to promote outer bearing ring 27 and realize, but oil cylinder needs continuous firing, and consumed power is bigger.In the present embodiment, be provided with thermal insulating pad I 41 between electric motor I 22 and the casing 1, thermal insulating pad be set can make electric motor I not influenced by spin manifold temperature, working stability is reliable.
In the present embodiment: in two working surfaces that described driving pulley I, driven pulley I, driving pulley II and driven pulley II and metal tape fit, one of them working surface is a conical surface, another is the plane, the angle of two working surfaces is 6 °-8 °, two working surface angles of this structure belt wheel are little, positive pressure is big, thereby can obtain very big frictional force, and driving torque is also bigger; Certainly two working surfaces of belt wheel all can be set to conical surface in concrete enforcement.
In the present embodiment: described metal tape comprises swelling pin 28, steel wire rope loop 29 and the some friction wedge blocks 30 that cooperate with pulley groove, described friction wedge block 30 is set up in parallel on steel wire rope loop 29, described swelling pin 28 embeds friction wedge block 30 and contacts with steel wire rope loop 29 extruding, this structural metal band structure is simple, and manufacture difficulty is low; Certainly in concrete enforcement, also can adopt traditional pin plate chain type metal tape.
In the present embodiment: described driving pulley I, driven pulley I, driving pulley II and driven pulley II are one group.Certainly can also be two groups of adjacent settings arranged side by side at driving pulley I described in concrete the enforcement, described driven pulley I is two groups of corresponding settings with driving pulley I, described driving pulley II is two groups of adjacent settings arranged side by side, described driven pulley II is two groups of corresponding settings with driving pulley II, is provided with two groups and can increases moment of torsion output capability (as shown in Figure 2).Certainly the quantity of driving pulley II and driven pulley II also can be set to many groups according to actual conditions, and driving pulley II and driven pulley II group number are many more, and the ability of the moment of torsion that speed changer transmits is strong more.
In the present embodiment: described shift fork drive unit comprises electric motor I I31, worm screw 32, the worm gear 33 that cooperates with worm screw that is fixedly installed on the casing 1 and is fixedly installed on worm-wheel shaft 34 on the casing, described electric motor I I31 cooperates with worm screw 32 transmissions, worm gear is provided with the external thread sleeve coaxial with it 35, described external thread sleeve 35 and shift fork 16 vertical and with the shift fork screw-thread fit; When wanting speed change, electric motor I I31 drives worm screw 32 and rotates, and worm screw 32 driving worm gears 33 rotate, and worm gear 33 drives external thread sleeves 35 and rotates, and moves thereby external thread sleeve 35 rotates promotion shift fork 16, realizes speed change; When meeting the requirements of speed, stop motor, it is stable that speed can keep, and variable speed operation is simple and convenient; Certainly the shift fork drive unit can also be an oil cylinder in concrete enforcement, moves by the hydraulic oil cylinder driving shift fork, speed change can be realized equally, but velocity-stabilization will be kept, and the necessary continuous firing of oil cylinder, consumed power is bigger.In the present embodiment, be provided with thermal insulating pad II42 between electric motor I I31 and the casing 1, thermal insulating pad is set can make electric motor I I not influenced by spin manifold temperature, working stability is reliable, external thread sleeve in the present embodiment 35 is made one with worm screw 32 in addition, certainly external thread sleeve 35 also can be provided with respectively with worm screw 32 in concrete enforcement, and the mode by link or welding is connected to one again.
In the present embodiment: described input shaft 2 is provided with the measure speed gears coaxial with it 36, and described casing is provided with the tachogenerator I 37 corresponding with measure speed gears 36, and the output terminal fixed jacket of described output shaft 5 has flange plate 38; Described flange plate 38 peripheries are provided with the tooth 39 that tests the speed, and described casing is provided with the tachogenerator II40 corresponding with the tooth that tests the speed.
In the present embodiment: also outer being with can be along the axially movable pressure transducer 40 of the axis of guide on the described axis of guide 24, described pressure transducer 40 is arranged between outer bearing ring 27 and the afterburning leading screw 25, can detect the afterburning situation of moment of torsion deceleration loading device, also can detect wheel load transmitted situation in good time, the testing signal of load cell 40 can be imported electronics numerical control speed variator system simultaneously, 22 work of electronics numerical control speed variator system control electric motor I realize loading automatically and unloading.
The velocity ratio computational methods of speed changer of the present invention are as follows:
The velocity ratio computational methods that the velocity ratio computational methods that 2 pairs of centres of described input shaft are one 3 and middle 3 pairs of centres are two 4 identical with the computational methods of existing gear-shift transmission velocity ratio (being that velocity ratio equals the ratio that the ratio of driven wheel radius and driving wheel radius or velocity ratio equal driving wheel rotating speed and driven wheel rotating speed); Planetary gears output speed n
2Computational methods as follows:
According to planetary gears motion equation: n
1+ an
2-(a+1) n
3=0 ... (1)
So: n
2=((a+1) n
3-n
1)/a
(1) in the formula: n
1Being the rotating speed of input shaft 2, also is the rotating speed of sun gear 18; n
2Being the rotating speed of gear ring 21, also is the rotating speed of output shaft 5; n
3Being the rotating speed of planet carrier 19, also is middle two 4 rotating speed; A is the planetary gears special parameter.
So input shaft is to the velocity ratio i of output shaft
OutputCalculate by following (2) formula:
i
Output=n
1/ n
2(2)
16 typical input shafts are to the velocity ratio i of output shaft
OutputResult of calculation for example;
If; n
1=3000 rev/mins; A=2.461538;
Driving pulley I radius is R1; Central axis distance between input shaft 2 and middle one 3 is 145mm; Driven pulley I radius is R2; Driving pulley II radius is R3; Driven pulley II radius is R4; Input shaft is to the velocity ratio i of output shaft
Input=(R2/R1) (R4/R3).
16 typical input shafts that calculate according to (2) formula are to the velocity ratio i of output shaft
OutputThe results are shown in following table:
As can be seen from the above table, speed changer of the present invention can be in neutral state, braking state, drive forwards state and work under four kinds of working staties of drive condition backward, and slewing range is big, and practicability is very strong.
Explanation is at last, above embodiment is only unrestricted in order to technological scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technological scheme of the present invention, and not breaking away from the aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (10)
1. large torque stepless speed changer, it is characterized in that: comprise casing (1), the input shaft (2) that is arranged on the casing and is rotatably assorted with casing, one of the centre of axis and input shaft parallel axes (3), be arranged on the input shaft and the driving pulley I coaxial with input shaft, be set up in parallel in middle one go up and with a middle coaxial driven pulley I and driving pulley II, be coated at input shaft and with two of centres movingly of transfer input shaft (4), in the middle of being arranged at two go up and with middle two coaxial driven pulley II, planetary gears that cooperates with input shaft and middle two shaft drive and the output shaft (5) that is arranged on the casing and is rotatably assorted with casing, driving pulley I and driven pulley I cooperate by metal tape I (6) transmission, and driving pulley II and driven pulley II cooperate by metal tape II (7) transmission;
Be provided with the shift fork (16) that pastes mutually with end face between described driven pulley I and two of driving pulley II adjacent end faces, described driving pulley I and two of driven pulley II adjacent end faces directly paste mutually and cooperate or paste cooperation mutually by being arranged on two antifriction spacing bodies between adjacent face;
Described casing (1) is provided with shift fork (16) along middle axially movable shift fork drive unit;
The clutch end of the sun gear of described planetary gears (18) and input shaft is in the coaxial secure fit of circumferencial direction, the clutch end that planet carrier of planetary gears (19) and centre are two is in the circumferencial direction secure fit, engagement in the same external toothing of the planet wheel of planetary gears (20) (21), the power intake of the same output shaft of external toothing (21) (5) is in the coaxial secure fit of circumferencial direction.
2. a kind of large torque stepless speed changer according to claim 1, it is characterized in that: the single stope wheel B (9) that described driving pulley I comprises the single stope wheel A (8) that is fixedly installed on the input shaft (2) and is coated at input shaft (2), described input shaft (2) and single stope wheel B (9) single-degree-of-freedom vertically are slidingly matched;
The single stope wheel D (11) that described driven pulley I comprises the single stope wheel C (10) that is fixedly installed on middle one and is coated at one of centre, described single stope wheel D (11) with middle one vertically single-degree-of-freedom be slidingly matched, single stope wheel D (11) is arranged on the casing by rolling bearing;
The single stope wheel F (13) that described driving pulley II comprises the single stope wheel E (12) that is fixedly installed on middle one and is coated at one of centre, described single stope wheel F (13) with middle one vertically single-degree-of-freedom be slidingly matched, single stope wheel F (13) is fixedly set on the casing by rolling bearing;
Described driven pulley II comprise be fixedly installed in the middle of on two single stope wheel G (14) and be coated in the middle of two single stope wheel H (15), two of described single stope wheel H (15) and centres single-degree-of-freedom vertically are slidingly matched;
Described single stope wheel C (10) is adjacent with single stope wheel E (12), and described shift fork (16) is arranged between single stope wheel C (10) and the single stope wheel E (12);
Described single stope wheel B (9) is adjacent with single stope wheel H (15).
3. a kind of large torque stepless speed changer according to claim 1 is characterized in that: described antifriction spacing body (17) is thrust-bearing, Thurst washer or plane bearing.
4. a kind of large torque stepless speed changer according to claim 1, it is characterized in that: the described moment of torsion deceleration loading device that also comprises, described moment of torsion deceleration loading device comprises the electric motor I (22) that is fixedly installed on the casing, worm screw (23), with middle axis of guide (24) that coaxial and relative casing fixedly installs, be coated at the axis of guide and with the afterburning leading screw (25) of axis of guide Spielpassung and the worm gear (26) that is coated at afterburning leading screw and cooperates with worm drive, described electric motor I (22) cooperates with worm screw (23) transmission, described worm screw (23) cooperates with worm gear (26) transmission, described worm gear (26) and afterburning leading screw (25) screw-thread fit, its outer bearing ring of rolling bearing (27) that cooperates with single stope wheel F (13) is coated at the axis of guide (24) in the mode that single-degree-of-freedom vertically moves, and described afterburning leading screw (25) is used for applying end thrust to outer bearing ring (27).
5. a kind of large torque stepless speed changer according to claim 4, it is characterized in that: in two working surfaces that described driving pulley I, driven pulley I, driving pulley II and driven pulley II and metal tape fit, one of them working surface is a conical surface, and another is the plane.
6. a kind of large torque stepless speed changer according to claim 5, it is characterized in that: described metal tape comprises swelling pin (28), steel wire rope loop (29) and the some friction wedge blocks (30) that cooperate with pulley groove, described friction wedge block (30) is set up in parallel on steel wire rope loop (29), and described swelling pin (28) embeds friction wedge block (30) and contacts with steel wire rope loop (29) extruding.
7. a kind of large torque stepless speed changer according to claim 6 is characterized in that: described driving pulley I is two groups of adjacent settings arranged side by side, and described driven pulley I is two groups of corresponding settings with driving pulley I; Described driving pulley II is two groups of adjacent settings arranged side by side, and described driven pulley II is two groups of corresponding settings with driving pulley II.
8. according to the described a kind of large torque stepless speed changer of arbitrary claim among the claim 1-7, it is characterized in that: described shift fork drive unit comprises electric motor I I (31), worm screw (32), the worm gear (33) that cooperates with worm screw that is fixedly installed on the casing (1) and is fixedly installed on worm-wheel shaft (34) on the casing, described electric motor I I (31) cooperates with worm screw (32) transmission, worm gear is provided with the external thread sleeve coaxial with it (35), described external thread sleeve (35) vertical with shift fork (16) and with the shift fork screw-thread fit.
9. a kind of large torque stepless speed changer according to claim 8, it is characterized in that: described input shaft (2) is provided with the measure speed gears coaxial with it (36), described casing is provided with the tachogenerator I (37) corresponding with measure speed gears (36), and the output terminal fixed jacket of described output shaft (5) has flange plate (38); Described flange plate (38) periphery is provided with the tooth that tests the speed (39), and described casing is provided with the tachogenerator II (40) corresponding with the tooth that tests the speed.
10. a kind of large torque stepless speed changer according to claim 9, it is characterized in that: the described axis of guide (24) is gone up also outer being with can be along the axially movable pressure transducer of the axis of guide (40), and described pressure transducer (40) is arranged between outer bearing ring (27) and the afterburning leading screw (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100845432A CN102230524A (en) | 2011-04-02 | 2011-04-02 | High-torque continuously variable transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100845432A CN102230524A (en) | 2011-04-02 | 2011-04-02 | High-torque continuously variable transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102230524A true CN102230524A (en) | 2011-11-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100845432A Pending CN102230524A (en) | 2011-04-02 | 2011-04-02 | High-torque continuously variable transmission |
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| Country | Link |
|---|---|
| CN (1) | CN102230524A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102829966A (en) * | 2012-08-25 | 2012-12-19 | 梁建军 | Mechanical loader |
| CN102840977A (en) * | 2012-08-25 | 2012-12-26 | 樊琳 | Loading sensor |
| TWI464337B (en) * | 2012-06-14 | 2014-12-11 | Ju Wen Hsiao | Reducer |
| CN108661227A (en) * | 2018-07-20 | 2018-10-16 | 徐州西斯博朗智能科技有限公司 | A kind of electronic mobile roof opening device of pin tooth, pin rack transmission mode |
| CN110701260A (en) * | 2019-09-29 | 2020-01-17 | 宝鸡法士特齿轮有限责任公司 | AMT transmission assembly |
-
2011
- 2011-04-02 CN CN2011100845432A patent/CN102230524A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI464337B (en) * | 2012-06-14 | 2014-12-11 | Ju Wen Hsiao | Reducer |
| CN102829966A (en) * | 2012-08-25 | 2012-12-19 | 梁建军 | Mechanical loader |
| CN102840977A (en) * | 2012-08-25 | 2012-12-26 | 樊琳 | Loading sensor |
| CN102829966B (en) * | 2012-08-25 | 2015-11-11 | 梁建军 | Machine loader |
| CN108661227A (en) * | 2018-07-20 | 2018-10-16 | 徐州西斯博朗智能科技有限公司 | A kind of electronic mobile roof opening device of pin tooth, pin rack transmission mode |
| CN108661227B (en) * | 2018-07-20 | 2023-12-01 | 徐州西斯博朗智能科技有限公司 | Pin tooth and pin gear transmission type electric movable roof opening device |
| CN110701260A (en) * | 2019-09-29 | 2020-01-17 | 宝鸡法士特齿轮有限责任公司 | AMT transmission assembly |
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Application publication date: 20111102 |