CN104214297B - Flat driving disk speed regulation type CVT (continuously variable transmission) - Google Patents

Flat driving disk speed regulation type CVT (continuously variable transmission) Download PDF

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Publication number
CN104214297B
CN104214297B CN201410060739.1A CN201410060739A CN104214297B CN 104214297 B CN104214297 B CN 104214297B CN 201410060739 A CN201410060739 A CN 201410060739A CN 104214297 B CN104214297 B CN 104214297B
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CN
China
Prior art keywords
square position
active
speed governing
active square
gear
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CN201410060739.1A
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Chinese (zh)
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CN104214297A (en
Inventor
谭波
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Individual
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Individual
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Priority to CN201410060739.1A priority Critical patent/CN104214297B/en
Publication of CN104214297A publication Critical patent/CN104214297A/en
Priority to PCT/CN2015/000048 priority patent/WO2015124034A1/en
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Publication of CN104214297B publication Critical patent/CN104214297B/en
Expired - Fee Related legal-status Critical Current
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H15/00—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members
    • F16H15/02—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members without members having orbital motion
    • F16H15/04—Gearings providing a continuous range of gear ratios
    • F16H15/06—Gearings providing a continuous range of gear ratios in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B
    • F16H15/08—Gearings providing a continuous range of gear ratios in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B in which the member B is a disc with a flat or approximately flat friction surface
    • F16H15/10—Gearings providing a continuous range of gear ratios in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B in which the member B is a disc with a flat or approximately flat friction surface in which the axes of the two members cross or intersect
    • F16H15/12—Gearings providing a continuous range of gear ratios in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B in which the member B is a disc with a flat or approximately flat friction surface in which the axes of the two members cross or intersect in which one or each member is duplicated, e.g. for obtaining better transmission, for lessening the reaction forces on the bearings

Abstract

The invention discloses a flat driving disk speed regulation type CVT (continuously variable transmission). The flat driving disk speed regulation type CVT comprises a shell, a flat driving disk system, a power input system, a middle flat disk system, a power output system, a tight pressing system, a flat driving disk speed regulation ratio system, a middle flat disk speed regulation ratio system and a series-parallel connection structure. The power transmission of the existing most successful CVT depends on a conical disk and a steel belt, and the wide application of the existing CVT is limited due to the limitations of the existing CVT. The power transmission of the flat driving disk speed regulation type CVT provided by the invention depends on tight pressing of flat driving disks and middle flat disks and tight pressing of the middle flat disks and flat driven disks. The invention aims at solving the problem that the speed ratio change range of the existing CVT is over-small, and the aim of expanding the speed ratio change range is achieved by respective up-down movements of the middle flat disks and the flat driving disks.

Description

Active square position speed governing type buncher
Technical field
The invention belongs to buncher field.
Background technology
Because most successful buncher was CVT buncher in the past, this buncher is by cone disk and steel V belt translation power, the limitation of this buncher limits widely using of this buncher, and the nothing of the present invention Level variator is to carry out transfer motion power by active square position and middle square position, the mutual compression in middle square position and passive square position.
Content of the invention
The invention aims to solving the problems, such as that former buncher speed ratio excursion is too small, by centre Square position and active square position respectively move up and down to reach the purpose realizing increasing speed ratio excursion.
A kind of active square position speed governing type buncher, including input shaft, output shaft, fixing passive square position, slides passively Square position, middle square position, active square position, middle square position speed ratio system, power is passed to institute by frictional force by described active square position State middle square position, power is passed to the passive square position of described fixation and passive square position of sliding by frictional force by described middle square position, moves Power passes to described output shaft by the passive square position of described fixation and passive square position of sliding, in the speed ratio system of middle square position, Middle square position support moves back and forth along the axis direction of middle square position leading screw together with middle square position, realizes the speed governing of middle square position Ratio process, is characterized in that：This buncher also includes active square position speed ratio system, described active square position speed ratio system energy Make described active square position up, move to away from described output direction of principal axis, described active square position also can be made descending, that is, to close Described output direction of principal axis moves, and each active square position synchronizing moving, in moving process, the axial line of each active square position is respectively Equal all the time with the distance of the axial line of described output shaft.
Further：Described active square position speed ratio system structure includes：Active square position lead screw shaft bearings are fixed with housing Connect, active square position leading screw one end is arranged in the lead screw shaft bearings of active square position by bearing, the active square position leading screw other end leads to Cross bearing to be arranged on housing, the threaded portion of active square position leading screw is joined with the active square position feed screw nut on the support of active square position Close, with the back rotation of coming of active square position leading screw, active square position feed screw nut is with active square position support together with active square position Axis direction along active square position leading screw moves back and forth, and realizes the speed ratio process of active square position.
Further：Described middle square position governing system includes：Middle square position leading screw in the support part of middle square position Nut and the leading screw cooperation of middle square position, middle square position support some pass through middle square position bearing and the cooperation of middle square position, The side in middle square position for the middle square position leading screw.
Further：The speed ratio system structure of described active square position also includes：It is fixed with the leading screw of active square position actively Square position screw gear, active square position screw gear is coordinated with the active square position speed governing shaft gear on active square position speed governing axle, actively Speed governing shaft gear in square position is fixedly connected with active square position speed governing axle, active square position speed governing axle cloth vertical with active square position leading screw axis Put, the active square position speed governing little gear on active square position speed governing axle is fixedly connected with active square position speed governing axle, each is actively flat Disk speed governing little gear is all coordinated with same active square position speed governing gear wheel.
Further：In the middle of this buncher at least 2, square position is in parallel.
Further：At least 2 variator series connection.
Further：Hydraulic compression system includes, and hydraulic lever support is fixedly connected with output shaft, in hydraulic cylinder pressurization When, hydraulic lever one end props up the passive square position of slip, and the hole in the middle part of hydraulic lever is hinged with hydraulic lever support, and hydraulic plate is held The hydraulic lever other end, output shaft passes through in the centre bore of hydraulic plate, and hydraulic plate can its slip relatively on output shaft.
Active square position speed governing type buncher, it includes：Housing, active square position system, power feed system, centre are flat Disc system, power output system, also pressing system, active square position speed ratio system, middle square position speed ratio system, series connection and Parallel-connection structure.
Active square position system：Active square position key and the cooperation of active square position gear are passed through in a pair of active square position, and by actively Square position nut screwing clamping, active square position nut is positive and negative button nut, on active square position half support one and active square position half support two all There is active square position rack beam, in the middle part of the active square position rack beam on the support one of active square position half, have active square position mandrel one, There are active square position mandrel two, active square position half support one and master in the middle part of active square position rack beam on the support two of active square position half Together with dynamic square position half support two is tightened to active square position support bracket bolt by active square position shaft screw, active square position leads to Cross bearing to be rotatably assorted with active square position mandrel one and active square position mandrel two.
When this buncher needs reversion, middle square position is across three kinds of forms of active square position rack beam：1st, main The minimum point of dynamic square position rack beam can be high as the plane of active square position, so when variator needs reversion, middle flat Disk when across active square position rack beam, the position of passive square position of sliding position consistency when can compress with hydraulic cylinder, guarantor Hold constant, now hydraulic cylinder pressure relief；2nd, the minimum point of active square position rack beam can also be higher than active square position plane, works as speed change When device needs reversion, when across active square position rack beam, hydraulic cylinder can be compared in the position of passive square position of sliding for middle square position It is located closer to hydraulic lever support, to vacate distance for middle square position across active square position rack beam during compression.3、 The minimum point of active square position rack beam is higher than active square position plane, step (the now hydraulic pressure of forward and backward conversion in this structure Cylinder pressure release)：1) in main story slowest ratio, now middle square position is contacted with passive square position outmost turns；Move on square position in the middle of 2) (to Move away from output direction of principal axis) closest to active square position rack beam, now, middle square position has had been moved to the outer of passive square position Prolong；3) active square position starts to move down (moving to close to output direction of principal axis), and middle square position is pushed up two by square position rack beam Side, square position rack beam summit contacts with middle square position；4) and then, active square position continue traveling downwardly (to close to output direction of principal axis move Dynamic), middle square position is disengaged with square position rack beam；5) in the middle of, square position is near active square position；6) in the middle of, square position and active are flat Disk simultaneously descending (moving to close to output direction of principal axis), middle square position is contacted with passive square position outer ring, and variator is reversion speed ratio Maximum rating.This kind of variator only can also use positive rotating function, without reverse function.
Power feed system：Active square position gear passes through active square position carrier gear and input shaft gear two coordinates, input Shaft gear one and input shaft gear two and input shaft, by bonded or one, form an input gear system.Every a pair of master Dynamic square position has an input gear system, the input shaft gear one of multiple input gear systems and same input idler gear to nibble Close it is ensured that each active square position rotating speed is identical consistent with active direction, power enters input system, input shaft end by input shaft end Can be on input idler gear it is also possible on any one input shaft.Input system special case 1：By above-described input The input idler gear of system changes silent chain into, and one or more silent chain is coordinated with input shaft gear one.
Power output system：Output shaft passes through in the centre bore of fixing passive square position, when hydraulic cylinder pressurizes, fixing quilt Dynamic square position position is relatively fixed with position of output axle, or one；Slide passive square position and output shaft can relative slide, but not Can relatively rotate, output shaft passes through in the centre bore sliding passive square position, passive square position of sliding is fixedly connected with hydraulic cylinder.
Pressing system：1st, hydraulic compression system includes：Hydraulic lever support is fixedly connected with output shaft, in hydraulic cylinder pressurization When, hydraulic lever one end props up the passive square position of slip：Hydraulic lever one end is to be connect with passive square position of sliding by hydraulic lever block Touch；Hole in the middle part of hydraulic lever is hinged with hydraulic lever support, and hydraulic plate holds the hydraulic lever other end：The hydraulic lever other end Hole can be hinged with one end of hydraulic lever hinge, the hydraulic lever hinge other end can be hinged with hydraulic lever hinge seat, Hydraulic lever
Active square position speed ratio system special case three：Active square position speed governing sliding axle two ends are propped up with active square position speed governing sliding axle Frame is fixedly connected, and active square position speed governing slip bracing strut is fixedly connected with the casing, and speed governing sliding axle in active square position is in active square position In the hole of support, the axis direction that active square position support can prolong active square position speed governing sliding axle moves back and forth, and active square position is adjusted Fast tooth bar is fixed on the support of active square position, and active square position governor gear is fixed on active square position speed governing axle, and active square position is adjusted Fast gear is coordinated with active square position speed governing tooth bar, so with the back rotation of coming of active square position speed governing axle, active square position timing gear Wheel also carrys out back rotation, and active square position governor gear is prolonged by active square position speed governing rack drives active square position support and active square position The axis direction of active square position speed governing sliding axle moves back and forth the speed ratio process it is achieved that active square position.
Middle square position speed ratio system：The speed ratio system of each middle square position：Middle square position lead screw shaft bearings and shell Body is fixedly connected, and middle square position leading screw one end is arranged in the lead screw shaft bearings of middle square position by bearing, and middle square position leading screw is another One end is arranged on housing by bearing, the middle square position leading screw on the threaded portion of middle square position leading screw and middle square position support Nut screw connection, middle square position feed screw nut is fixedly connected with middle square position support, or one, turning with middle square position leading screw Dynamic, between Yanzhong, the axis direction of square position leading screw is back and forth together with middle square position with middle square position support for middle square position feed screw nut Mobile, realize the speed ratio process of middle square position.Middle square position screw gear, middle square position silk are fixed with the leading screw of middle square position Thick stick gear can be worm gear, and middle square position screw gear is coordinated with the middle square position speed governing shaft gear on middle square position speed governing axle, Middle square position speed governing shaft gear can be worm screw, and middle square position speed governing shaft gear is fixedly connected with middle square position speed governing axle, middle Speed governing axle in square position is arranged vertically with middle square position leading screw axis, and middle square position speed governing axle is arranged in parallel with output shaft, middle square position Middle square position speed governing little gear on speed governing axle is fixedly connected with middle square position speed governing axle.
The middle square position speed governing little gear of the speed ratio system of each middle square position and same middle square position speed governing are big Gear coordinates, speed governing power speed governing little gear in square position in the middle of middle square position speed governing axle head passes to, then by middle square position Remaining each middle square position speed governing little gear passed to by speed governing gear wheel, and each middle square position speed governing little gear is passed through in the middle of each The speed ratio system of square position, drives square position leading screw axis direction between each middle square position Yanzhong to move back and forth it is achieved that middle put down The regulation to speed ratio for the disk.
Structure in parallel and serial：We are (including with same passive square position：Fixing passive square position, middle passive square position With passive square position of sliding) the middle square position quantity that contacts is called number in parallel, the present invention can with more than 2 (containing 2) in Between square position in parallel, the middle square position quantity of the speed ratio system quantity of each active square position and parallel connection is identical, in the middle of each The speed ratio system quantity of square position is also identical with middle square position quantity in parallel；Adjacent for each two passive square position (is included：Fixing Passive square position, slide passive square position and middle passive square position) between structure a variator, can be with more than 2 (containing 2) Variator is connected, and the variator quantity of series connection is exactly the serial number of this kind of buncher, the mode of series connection：The change of multiple series connection Fast device shares an output shaft, and the variator of multiple series connection shares an input shaft, the speed ratio system of each active square position Quantity is still identical with middle square position quantity in parallel, the speed ratio system quantity of each middle square position also with centre in parallel Square position quantity is identical.
The operation principle of this kind of buncher：
1st, power transmission operation principle：Power enters this buncher from input shaft end, and (1) input shaft end is in input Between in structure on gear, power is passed to input idler gear by input shaft end, and it is defeated that power is passed to each by input idler gear Enter shaft gear one, then each input shaft is passed to by input shaft gear one；(2) organization plan on an input shaft for the input shaft end In, power passes to an input shaft from input shaft end one tunnel, separately leads up to input idler gear and passes to each input shaft gear One, more other input shafts are passed to by input shaft gear one；(3) knot being individually fixedly connected with input shaft end gear in input shaft end In structure, power is directly transmitted to input shaft end gear from input shaft end, passes to input idler gear by input shaft end gear, in input Between gear again power is passed to each input shaft gear one.Again each input shaft is passed to by each input shaft gear one, power leads to Cross input shaft, hinge seat is fixed in hydraulic plate；Output shaft passes through in the centre bore of hydraulic plate, and hydraulic plate can on output shaft With its slip relatively.2nd, spring compression system：Brute spring one end props up the passive square position of slip, and the other end props up on output shaft Snap ring, the snap ring on output shaft is fixedly connected with output shaft.
Pressing system is not limited only to above 2 kinds of modes.
Middle square position system：Middle square position feed screw nut in the support part of middle square position and middle square position leading screw are joined Close, middle square position support some pass through middle square position bearing and the cooperation of middle square position, middle square position leading screw is middle flat The side of disk, middle square position feed screw nut is one with middle square position support or is fixedly connected, middle square position in active square position and Passive square position (includes：Fixing passive square position, slide passive square position and middle passive square position) between work.Middle square position leading screw can To be that lead screw, ball-screw (comprise：Ball-screw and roller screw) and the matched middle square position silk of static-pressure lead screw Thick stick nut can be slip screw, roll screw (comprise：Ball screw and roller screw) and static pressure screw.
The speed ratio system of active square position：This system can make active square position up, moves to away from output direction of principal axis, Active square position can be made descending, move to close to output direction of principal axis, and be each active square position synchronizing moving, in moving process In, the axial line of each active square position is equal all the time with the distance of the axial line of output shaft respectively.
The speed ratio system special case one of active square position：The speed ratio system of each active square position：Active square position lead screw shaft Bearing is fixedly connected with the casing, and active square position leading screw one end is arranged in the lead screw shaft bearings of active square position by bearing, actively flat The parcel thick stick other end is arranged on housing by bearing, the active on the threaded portion of active square position leading screw and active square position support Square position feed screw nut cooperation, with the back rotation of coming of active square position leading screw, active square position feed screw nut is with active square position support The axis direction prolonging active square position leading screw together with active square position moves back and forth, and realizes the speed ratio process of active square position.Actively Active square position screw gear is fixed with the leading screw of square position, active square position screw gear contains worm gear, active square position screw gear and master Active square position speed governing shaft gear cooperation on dynamic square position speed governing axle, speed governing shaft gear in active square position contains worm screw, the speed governing of active square position Shaft gear is fixedly connected with active square position speed governing axle, and speed governing axle in active square position is arranged vertically with active square position leading screw axis, actively Active square position speed governing little gear on square position speed governing axle is fixedly connected with active square position speed governing axle.
Active square position leading screw can be that lead screw, ball-screw (comprise：Ball-screw and roller screw) and static pressure silk Thick stick, matched active square position feed screw nut can be slip screw, roll screw (comprise：Ball screw and roller screw) And static pressure screw, active square position feed screw nut can be fixedly connected it is also possible to be slidably connected with active square position support, that is, actively flat Disc carrier can prolong vertical and active square position leading screw horizontal direction linear slide.
The active square position speed governing little gear of the speed ratio system of each active square position and same active square position speed governing Gear wheel coordinates, and speed governing power passes to an active square position speed governing little gear from active square position speed governing axle head, then by actively flat Remaining each active square position speed governing little gear passed to by disk speed governing gear wheel, and each active square position speed governing little gear is led by each The speed ratio system of dynamic square position, drives each active square position to prolong active square position leading screw axis direction and moves back and forth it is achieved that actively The regulation to speed ratio for the square position.
Active square position speed ratio system special case two：Active square position speed governing sliding axle two ends are propped up with active square position speed governing sliding axle Frame is fixedly connected, and active square position speed governing slip bracing strut is fixedly connected with the casing, and speed governing sliding axle in active square position is in active square position In the hole of support, the axis direction that active square position support can prolong active square position speed governing sliding axle moves back and forth, and active square position is adjusted The little axle of fast rocking arm is fixed on the support of active square position, and the little axle of active square position speed governing rocking arm is in the length of active square position speed governing one end Kong Zhong, the speed governing rocking arm other end in active square position is fixedly connected with active square position speed governing axle, so with active square position speed governing axle Carry out back rotation, speed governing rocking arm in active square position swings back and forth, speed governing rocking arm in active square position passes through the little axle band of active square position speed governing rocking arm The axis direction that active square position speed governing sliding axle is prolonged in dynamic active square position support and active square position moves back and forth it is achieved that active square position Speed ratio process.
Input shaft gear two, active square position carrier gear pass to active square position gear, and active square position gear is passed to actively again Square position, when hydraulic cylinder compresses, power is passed to middle square position by frictional force by active square position, and middle square position is also by frictional force Power is passed to fixing passive square position and passive square position of sliding, power passes to output shaft by each passive square position, power is by exporting Axle spreads out of variator.
2nd, hydraulic cylinder works principle：After hydraulic oil pressurization, oil pressure one side acts on the passive square position of slip；On the one hand make In hydraulic plate, hydraulic plate pulls hydraulic lever hinge by hydraulic lever hinge seat, and hydraulic lever hinge pulls hydraulic pressure again Lever, hydraulic lever passes through the passive square position of hydraulic lever block compression slip with hydraulic lever support for fulcrum.
3rd, speed ratio operation principle：(1) square position speed ratio operation principle in the middle of：Speed governing power is by middle square position speed governing axle head Enter this buncher, in the structure on square position speed governing axle in the middle of middle square position speed governing axle head is fixed on, speed governing is moved Power passes to speed governing little gear in square position in the middle of from middle square position speed governing axle head, and this middle square position speed governing little gear is by speed governing power Pass to middle square position speed governing gear wheel, remaining each middle square position speed governing little gear passed to again by middle square position speed governing gear wheel, respectively Individual middle square position speed governing little gear passes through the speed ratio system of each middle square position, drives square position between each middle square position Yanzhong Leading screw axis direction moves back and forth it is achieved that the middle regulation to speed ratio for the square position；Individually and middle in middle square position speed governing axle head In the structure that square position speed governing shaft end gear is fixedly connected, middle square position speed governing shaft end gear is joined with middle square position speed governing gear wheel Close, speed governing power passes to middle square position speed governing gear wheel from middle square position speed governing axle head by middle square position speed governing shaft end gear, Remaining each middle square position speed governing little gear passed to again by middle square position speed governing gear wheel, and each middle square position speed governing little gear is passed through The speed ratio system of each middle square position, drives square position leading screw axis direction between each middle square position Yanzhong to move back and forth, real Show the regulation to speed ratio for the middle square position.
(2) speed ratio system special case one operation principle of active square position：It is fixed on a master in active square position speed governing axle head In structure on dynamic square position speed governing axle, speed governing power passes to an active square position speed governing axle from active square position speed governing axle head one tunnel, Separately lead up to an active square position speed governing little gear and pass to active square position speed governing gear wheel, speed governing gear wheel in active square position passes again To remaining each active square position speed governing little gear, each active square position speed governing little gear passes through the speed ratio of each active square position System, drives each active square position to prolong active square position leading screw axis direction and moves back and forth it is achieved that the tune to speed ratio for the active square position Section；In the structure that speed governing axle head in active square position is individually fixedly connected with active square position speed governing shaft end gear, the speed governing of active square position Shaft end gear is coordinated with active square position speed governing gear wheel, and speed governing power passes through active square position speed governing axle from active square position speed governing axle head End tooth wheel passes to active square position speed governing gear wheel, and remaining each little tooth of active square position speed governing passed to again by speed governing gear wheel in active square position Wheel, each active square position speed governing little gear passes through the speed ratio system of each active square position, drives each active square position to prolong master Dynamic square position leading screw axis direction moves back and forth it is achieved that the regulation to speed ratio for the active square position.
(3) operation principle that in the middle of, square position speed ratio and active square position speed ratio combine：Our regulation speed ratios are inputs The absolute value of rotating speed divided by the absolute value of output rotating speed, 1) set first in the middle of square position and active square position all near defeated The position of shaft, at this moment in the middle of square position contact with the outmost turns of active square position, and output shaft is main story, and at this moment variator is main story Minimum speed ratio；2) and then middle square position and active square position uplink synchronization (moving to away from output direction of principal axis), until middle square position Contact with the outmost turns of passive square position, this process is to wait moment of torsion (peak torque) speed regulation process, and positive transmission velocity ratio is gradually increased；3) Then in the middle of, square position stops moving, and active square position is descending, until active square position rack beam is closest to centre square position, at this moment main story Speed ratio increases further, until maximum；4) and then active square position descending further (moving to close to output direction of principal axis), actively flat Across middle square position, this process is forward and backward conversion to disc carrier crossbeam, and speed ratio reaches reversion slowest ratio, and this process will Seek hydraulic cylinder pressure relief；5) and then middle square position is motionless, active square position continues traveling downwardly, and the outer ring of active square position is connect with centre square position Touch, this process reversion speed ratio constantly reduces；6) and then active square position and middle square position DL synchronization, until active square position connects most Nearly output shaft, this process is to wait moment of torsion (peak torque) speed regulation process, and reversion speed ratio reduces, further until being minimized.
Due to employing present configuration, so that this kind of buncher is had the advantages that is：
1. the power of power transmission and moment of torsion are big.
2. power attenuation is little.
3. there is the function of rotating.
4. speed governing ratio coverage is bigger.
Brief description
Below accompanying drawing is illustrated：
Fig. 1 is the sectional view of this kind of buncher structure, and middle square position is in power output shaft forward position；
Fig. 2 is the sectional view of this kind of buncher structure, 2 this kind of buncher series connection；
Fig. 3 is that active square position gear passes through active square position carrier gear and input shaft gear one cooperation schematic diagram, actively flat Disk gear is in the position farthest away from output shaft；
Fig. 4 is that active square position gear passes through active square position carrier gear and input shaft gear one cooperation schematic diagram, actively flat Disk gear is in the position nearest away from output shaft；
Fig. 5 is middle square position and middle square position leading screw cooperation figure, and middle square position is in the position farthest away from output shaft；
Fig. 6 is the A-A sectional view of Fig. 1, and middle square position is in the position nearest away from output shaft；
Fig. 7 is active square position and active square position leading screw matching chart, and active square position is in the position farthest away from output shaft；
Fig. 8 is the B-B sectional view of Fig. 1, and active square position is in the position nearest away from output shaft；
Fig. 9 is the J direction view of Fig. 1；
Figure 10 is the I direction view of Fig. 2；
Figure 11 is the H-H sectional view of Fig. 1；
Figure 12 is this kind of buncher adjusting speed ratio principle schematic, main story minimum speed ratio；
Figure 13 is this kind of buncher adjusting speed ratio principle schematic, main story high pulling torque slowest ratio；
Figure 14 is this kind of buncher adjusting speed ratio principle schematic, main story slowest ratio；
Figure 15 is this kind of buncher adjusting speed ratio principle schematic, and middle square position is horizontal across active square position support Beam；
Figure 16 is this kind of buncher adjusting speed ratio principle schematic, and reversion speed ratio is maximum；
Figure 17 is this kind of buncher adjusting speed ratio principle schematic, and reversion speed ratio is minimum；
Figure 18 is that active square position gear passes through active square position carrier gear and input shaft gear one matching chart；
Figure 19 is active square position nut structure figure；
Figure 20 is the C-C sectional view of Figure 19；
Figure 21 is the J-J sectional view of Figure 18；
Figure 22 is the E-E sectional view of Figure 18；
Figure 23 is the F-F sectional view of Figure 18；
Figure 24 is the G-G sectional view of Figure 18；
Figure 25 is active square position support and active square position matching chart；
Figure 26 is active square position support and active square position fit structure profile；
Figure 27 is active square position half support one structure chart；
Figure 28 is active square position half support two figure；
Figure 29 is active square position rack assumption diagram；
Figure 30 is the top view of Figure 25；
Figure 31 is in square position this kind of buncher in parallel in the middle of 4, and middle square position is coordinated with middle square position leading screw Structure chart, middle square position is in the position farthest away from output shaft；
Figure 32 is in square position this kind of buncher in parallel in the middle of 4, and middle square position is coordinated with middle square position leading screw Structure chart, middle square position is in the position nearest away from output shaft；
Figure 33 is that in square position this kind of buncher in parallel in the middle of 4, active square position is coordinated with active square position leading screw Structure chart, active square position is in the position nearest away from output shaft；
Figure 34 is that in square position this kind of buncher in parallel in the middle of 4, active square position is coordinated with active square position leading screw Structure chart, active square position is in the position farthest away from output shaft；
Figure 35 is the K-K sectional view of Figure 33, has removed the other middle square position not shown, middle square position support, has actively put down Disk, active square position support, middle square position leading screw and active square position leading screw；
Figure 36 is the L-L sectional view of Figure 33, has removed the other middle square position not shown, middle square position support, has actively put down Disk, active square position support, middle square position leading screw and active square position leading screw；
Figure 37 is square position support and a middle square position leading screw, middle square position support in the middle of each middle square position has Axis perpendicular to output shaft axis layout drawing；
Figure 38 is square position support and a middle square position leading screw, middle square position support in the middle of each middle square position has Axis and output shaft axis hold certain angle layout drawing；
Figure 39 is square position support and two middle square position leading screws, middle square position support in the middle of each middle square position has two Axis perpendicular to output shaft axis layout drawing；
Figure 40 is square position support and two middle square position leading screws, middle square position support in the middle of each middle square position has two Axis and output shaft axis hold certain angle layout drawing；
Figure 41 is middle square position bilayer structure chart in the centre bore of middle square position for the bearing；
Figure 42 is structure chart in the centre bore of middle square position for the middle square position monolayer bearing；
Figure 43 be middle square position bilayer bearing in the centre bore of middle square position, and the structure chart that middle square position thickeies；
Figure 44 is the D-D sectional view of Figure 41, and middle square position leading screw is ball-screw, the leading screw spiral shell on the support of middle square position Mother is the structure chart of ball screw；
Figure 45 is the E-E sectional view of Figure 44, and middle square position leading screw is ball-screw, the leading screw spiral shell on the support of middle square position Mother is ball screw, and designates the structure chart of outer circulation track；
Figure 46 is that middle square position does not have centre bore, and middle square position bearing is arranged on the central shaft of middle square position, middle flat The central shaft of disk is to be fixedly connected with middle square position, or the structure chart of one；
Figure 47 is the sectional view of square position this kind of buncher structure in parallel in the middle of 5, and middle square position is in power output Axle forward position；
Figure 48 is the sectional view of this kind of buncher structure, square position parallel connection and 2 this kind buncher string in the middle of 5 Connection, middle square position is in power output shaft forward position；
Figure 49 is the position of input shaft gear one, input idler gear and input shaft end；
Figure 50 is active square position speed governing little gear and the position assumption diagram of active square position speed governing gear wheel cooperation；
Figure 51 is middle square position speed governing little gear and the position assumption diagram of middle square position speed governing gear wheel cooperation；
Figure 52 is the N-N sectional view of Figure 47, and middle square position, in the position nearest away from output shaft, is square position in the middle of 5 in figure This kind of buncher in parallel；
Figure 53 is middle square position and middle square position leading screw cooperation figure, middle square position in the position farthest away from output shaft, in figure It is square position this kind of buncher in parallel in the middle of 5；
Figure 54 is the M-M sectional view of Figure 52, square position lead screw shaft bearings section configuration in the middle of display；
Figure 55 is the O-O sectional view of Figure 47, and active square position, in the position nearest away from output shaft, is square position in the middle of 5 in figure This kind of buncher in parallel；
Figure 56 is active square position and active square position leading screw matching chart, active square position in the position farthest away from output shaft, It is square position this kind of buncher in parallel in the middle of 5 in figure；
Figure 57 is that active square position gear passes through active square position carrier gear and input shaft gear one cooperation schematic diagram, actively flat Disk gear, in the position nearest away from output shaft, is square position this kind of buncher in parallel in the middle of 5 in figure；
Figure 58 is that active square position gear passes through active square position carrier gear and input shaft gear one cooperation schematic diagram, actively flat Disk gear, in the position farthest away from output shaft, is square position this kind of buncher in parallel in the middle of 5 in figure；
Figure 59 is in forward and backward transformation process, when the minimum point of active square position rack beam is higher than active square position plane, During main story slowest ratio, now middle square position and passive square position (are fixed passive square position, middle passive square position and slip passively to put down Disk) outmost turns contact schematic diagram；
Figure 60 is in forward and backward transformation process, when the minimum point of active square position rack beam is higher than active square position plane, in Between (moving to away from output direction of principal axis) is moved on square position, closest to active square position rack beam, now, middle square position has been moved to The schematic diagram of the extension of passive square position；
Figure 61 is in forward and backward transformation process, when the minimum point of active square position rack beam is higher than active square position plane, main Dynamic square position starts to move down (moving to close to output direction of principal axis), and both sides, square position are pushed up in middle square position by square position rack beam The schematic diagram that rack beam summit contacts with middle square position；
Figure 62 is in forward and backward transformation process, when the minimum point of active square position rack beam is higher than active square position plane, main Dynamic square position continues traveling downwardly (moving to close to output direction of principal axis), the schematic diagram that middle square position is disengaged with square position rack beam；
Figure 63 is in forward and backward transformation process, when the minimum point of active square position rack beam is higher than active square position plane, in Between the schematic diagram near active square position for the square position；
Figure 64 is in forward and backward transformation process, when the minimum point of active square position rack beam is higher than active square position plane, in Between square position and active square position simultaneously descending (to close to output direction of principal axis move), middle square position contacts with passive square position outer ring, change Fast device is the schematic diagram of reversion speed ratio maximum rating；
Figure 65 is the structure chart of active square position speed ratio system special case two, and active square position is in the position away from output shaft；
Figure 66 is the structure chart of active square position speed ratio system special case two, and active square position is in the position near output shaft；
Figure 67 is the structure chart of active square position speed ratio system special case three, and active square position is in the position away from output shaft；
Figure 68 is the structure chart of active square position speed ratio system special case three, and active square position is in the position near output shaft；
In the various figures：Square position feed screw nut in the middle of 1-；Speed governing little gear in square position in the middle of 2-；3- housing；In the middle of 4-, square position is adjusted Fast axle；Speed governing shaft gear in square position in the middle of 5-；Square position leading screw in the middle of 6-；Square position screw gear in the middle of 7-；8- active square position leading screw；9- Active square position screw gear；Square position in the middle of 10-；Square position lead screw shaft bearings in the middle of 11-；Square position support in the middle of 12-；13- input shaft； The passive square position of 14- slip；15- hydraulic cylinder；16- hydraulic lever hinge；17- hydraulic lever hinge seat；18- hydraulic plate；19- is defeated Enter shaft gear one；20- hydraulic lever；21- hydraulic lever block；22- hydraulic pressure flat spring；23- hydraulic lever support；In 24- input Between gear；25- hydraulic cylinder oil inlet；26- hydraulic lever support alignment pin；27- hydraulic circuit；28- input shaft end；29- is actively Square position gear；The big rocking arm in 30- active square position；31- active square position small rocker；32- active square position small rocker groove hook；33- is actively flat Disc carrier groove hook；34- active square position small rocker pinch roller；35- active square position rack beam；36- fixes passive square position；37- exports Axle；Snap ring is fixed in the passive square position of 38- fixation；39- active square position feed screw nut；40- active square position；41- active square position speed governing is little Gear；42- active square position support；43- active square position speed governing gear wheel；Speed governing gear wheel in square position in the middle of 44-；45- input shaft axle Bearing；46- active square position bridge gear shaft；Speed governing axle head in square position in the middle of 47-；48- active square position speed governing shaft gear；49- is actively Square position speed governing axle；50- active square position lead screw shaft bearings；51- active square position carrier gear；52- input shaft gear two；53- ball Leading screw ball；54- ball nut outside the circular channels；Square position bearing in the middle of 55-；56- active square position mandrel one；57- active square position Mandrel two；58- active square position nut；59- active square position shaft screw；60- active square position half support two；61- active square position half Support one；62- active square position key；63- active square position support bracket bolt；64- active square position speed governing axle head；65- input shaft end gear； Speed governing shaft end gear in square position in the middle of 66-；67- active square position speed governing shaft end gear；Passive square position in the middle of 68-；69- active square position is adjusted Fast gear；70- active square position speed governing tooth bar；71- active square position speed governing sliding axle；72- active square position speed governing slip bracing strut； The little axle of 73- active square position speed governing rocking arm；74- active square position speed governing rocking arm.
It is embodied as formula
In Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 9, Figure 10, Figure 18, Figure 19, Figure 20, Figure 21, Figure 22, Figure 23, Figure 24, Figure 25, figure 26th, visible in Figure 27, Figure 28, Figure 29, Figure 30, Figure 59, Figure 60, Figure 61, Figure 62, Figure 63, Figure 64, active square position system：A pair Active square position 40 is coordinated with active square position gear 29 by active square position key 62, and is tightened by active square position nut 58, actively Square position nut 58 is positive and negative button nut, forms a pair of active square position 40 and is fixedly connected with active square position gear 29, active square position half Active square position rack beam 35, the master on the support 1 of active square position half are had on support 1 and active square position half support 2 60 There are active square position mandrel 1, the active square position rack beam on the support 2 60 of active square position half in the middle part of dynamic square position rack beam 35 Active square position mandrel 2 57, active square position half support 1 and active square position half support 2 60 is had to pass through active square position core in the middle part of in the of 35 Together with axle bolt 59 is tightened to active square position support bracket bolt 63, bearing and active square position mandrel one are passed through in active square position 40 56 and active square position mandrel 2 57 be rotatably assorted.
When this buncher needs reversion, middle square position 10 is across three kinds of forms of active square position rack beam 35： 1st, the minimum point of active square position rack beam 35 can be high as the plane of active square position 10, so when variator needs to invert When, when across active square position rack beam 35, the position of passive square position 14 of sliding can be compressed with hydraulic cylinder for middle square position 10 When position consistency, keep constant, now hydraulic cylinder pressure relief；2nd, the minimum point of active square position rack beam 35 can also be than actively Square position plane is high, and when variator needs reversion, when across active square position rack beam 35, slide and passively put down in middle square position 10 It is located closer to hydraulic lever support 23, so that for middle square position 10 across master when the position of disk 14 can compress than hydraulic cylinder Dynamic square position rack beam 35 vacates distance.3rd, the minimum point of active square position rack beam 35 is higher than active square position plane, and here is tied The step (now hydraulic cylinder pressure relief) of forward and backward conversion in structure：1) in Figure 59 visible, in main story slowest ratio, now in Between square position 10 and passive square position (fixing passive square position 36, middle passive square position 68 and passive square position 14 of sliding) outmost turns contact； 2) in Figure 60 visible, middle square position 10 is moved (moving to away from output direction of principal axis) closest to active square position rack beam 35, Now, middle square position 10 has had been moved to the extension of passive square position；3) in Figure 61 visible, active square position 10 starts to move down (moving to close to output direction of principal axis), both sides, square position rack beam 35 summit are pushed up in middle square position 10 by square position rack beam 35 Contact with middle square position 10；4) in Figure 62 visible, then, active square position 40 continues traveling downwardly and (moves to close to output direction of principal axis Dynamic), middle square position 10 and square position rack beam 35 disengage；5) in Figure 63 visible, middle square position 10 is near active square position 40；6) in Figure 64 visible, middle square position 10 and active square position 40 simultaneously descending (moving to close to output direction of principal axis), middle flat Disk 10 is contacted with passive square position outer ring, and variator is reversion speed ratio maximum rating.
The big rocking arm in active square position 30 one end is hinged on active square position leading screw 8 bearing block, can be around the axle of input shaft 37 The heart rotates, and the other end is hinged with active square position bridge gear shaft 46；Active square position small rocker 31 one end is hinged on active square position mistake On axle gear axle 46, the active square position small rocker pinch roller 34 of the other end props up active square position support 42, and active square position is little shakes Active square position small rocker groove hook 32 on arm 31 hooks the active square position bracket groove hook 33 on active square position support 42, active square position When small rocker pinch roller 34 rolls on active square position support 42, active square position small rocker groove hook 32 hooks active square position support always Groove hook 33, and, active square position small rocker groove hook 32 can relative slip with active square position bracket groove hook 33.
Power feed system：Active square position gear 29 passes through active square position carrier gear 51 and input shaft gear 2 52 is joined Close, input shaft gear 1 and input shaft gear 2 52 and input shaft 13, by bonded or one, form an input gear System.There is an input gear system every a pair of active square position 40, the input shaft gear 1 of multiple input gear systems and with One input idler gear 24 engages it is ensured that each active square position 40 rotating speed is identical consistent with rotation direction, and power is by input shaft End 28 entrance input system, input shaft end 28 can be on input idler gear 28 it is also possible on any one input shaft 13. Input system special case 1：The input idler gear 28 of above-described input system is changed into silent chain, one or more silent chain With input shaft gear 1 cooperation.
Power output system：Output shaft 37 passes through in the centre bore of fixing passive square position 36, when hydraulic cylinder pressurizes, Gu Fixed passive square position 36 position is relatively fixed with output shaft 37 position, or one；Passive square position 14 of sliding is permissible with output shaft 37 Relatively slide, but relatively unrotatable, and output shaft 37 passes through in the centre bore sliding passive square position 14, passive square position 14 of sliding It is fixedly connected with hydraulic cylinder 15.
Hydraulic compression system：Hydraulic lever support 23 is fixedly connected with output shaft 37, when hydraulic cylinder pressurizes, hydraulic lever 20 one end prop up the passive square position 14 of slip：Hydraulic lever 20 one end is to be connect with passive square position 14 of sliding by hydraulic lever block 21 Touch；The hole at hydraulic lever 20 middle part is hinged with hydraulic lever support 23, and hydraulic plate 18 holds another 20 one end of hydraulic lever：Hydraulic pressure thick stick The hole of bar 20 other end can be hinged with one end of hydraulic lever hinge 16, and the hydraulic lever hinge other end can be with hydraulic lever Hinge seat hinge 17 connects, and hydraulic lever hinge seat 17 is fixed in hydraulic plate；Output shaft passes through in the centre bore of hydraulic plate 18, liquid Pressing plate 18 can its slip relatively on output shaft 37.
Visible in FIG, structure on input idler gear 24 for the input shaft end 28.
Visible in fig. 2, structure on any one input shaft 13 for the input shaft end 28.
Visible in Figure 49, input shaft end 28 is not on input shaft 13, also not on input idler gear 24, independent and defeated Enter shaft end gear 65 to be fixedly connected, input shaft end gear 65 is coordinated with input idler gear 24.
Visible in Fig. 1, Fig. 2, Fig. 5, Fig. 6, Figure 11, middle square position speed ratio system：The speed governing of each middle square position Compare system：Middle square position lead screw shaft bearings 11 are fixedly connected with housing 3, during middle square position leading screw 6 one end is arranged on by bearing Between in square position lead screw shaft bearings 11, middle square position leading screw 6 other end is installed on housing 3 by bearing, the spiral shell of middle square position leading screw 6 Stricture of vagina part is coordinated with the middle square position feed screw nut 1 on middle square position support 12, and middle square position feed screw nut 1 is propped up with middle square position Frame 12 is fixedly connected, or one, and with the rotation of middle square position leading screw 6, middle square position feed screw nut 1 props up with middle square position Frame 42 together with middle square position 10 between Yanzhong the axis direction of square position leading screw 6 move back and forth, realize in the middle of square position 10 speed ratio Process.Middle square position screw gear 7 is fixed with middle square position leading screw 6, middle square position screw gear 7 can be worm gear, middle Square position screw gear 7 is coordinated with the middle square position speed governing shaft gear 5 on middle square position speed governing axle 4, middle square position speed governing shaft gear 5 Can be worm screw, middle square position speed governing shaft gear 5 is fixedly connected or one with middle square position speed governing axle 4, the speed governing of middle square position Axle 4 is arranged vertically with middle square position leading screw 6 axis, and middle square position speed governing axle 4 is arranged in parallel with output shaft 37, the speed governing of middle square position Middle square position speed governing little gear 2 on axle 4 is fixedly connected with middle square position speed governing axle 4.
The middle square position speed governing little gear 2 of the speed ratio system of each middle square position is big with same middle square position speed governing Gear 44 coordinates.
Visible in Fig. 1, Fig. 2, middle square position speed governing axle 47 end is fixed on a middle square position speed governing axle 4.
Visible in Figure 51, middle square position speed governing axle head 47 is individually fixedly connected with middle square position speed governing shaft end gear 66, Middle square position speed governing shaft end gear 66 is coordinated with middle square position speed governing gear wheel 44.
Visible in Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 7, Fig. 8, the speed ratio system of active square position：This system can make actively flat Disk 40 is up, moves to away from output shaft 37 direction, active square position 40 also can be made descending, moves to close to output shaft 37 direction Dynamic, and be each active square position 40 synchronizing moving, in moving process, the axial line of each active square position 40 respectively with output shaft 37 Axial line distance equal all the time.Active square position speed ratio system special case one：The speed ratio system of each active square position：Main Dynamic square position lead screw shaft bearings 50 are fixedly connected with housing 3, and active square position leading screw 8 one end is arranged on active square position leading screw by bearing On bearing block 50, active square position leading screw 8 other end is installed on housing 3 by bearing, the threaded portion of active square position leading screw 8 and master Active square position feed screw nut 39 on dynamic square position support 42 coordinates, with the back rotation of coming of active square position leading screw 8, active square position silk Thick stick nut 39 moves back and forth with the axis direction that active square position support 42 prolongs active square position leading screw 8 together with active square position 40, Realize the speed ratio process of active square position 40.Active square position screw gear 9, active square position silk are fixed with active square position leading screw 8 Thick stick gear 9 contains worm gear, and active square position screw gear 9 is joined with the active square position speed governing shaft gear 48 on active square position speed governing axle 49 Close, active square position speed governing shaft gear 48 contains worm screw, active square position speed governing shaft gear 48 is fixedly connected with active square position speed governing axle 49, Active square position speed governing axle 49 is arranged vertically with active square position leading screw 8 axis, the active square position speed governing on active square position speed governing axle 49 Little gear 41 is fixedly connected with active square position speed governing axle 49.
Active square position leading screw 8 can be lead screw, ball-screw, roller screw and the matched active of static-pressure lead screw Square position feed screw nut 39 can be slip screw, ball screw, roller screw and static pressure screw, and active square position feed screw nut 39 can To be fixedly connected it is also possible to be slidably connected with active square position support 42, that is, active square position support 42 can prolong vertical and actively put down The horizontal direction linear slide of parcel thick stick 8.
The active square position speed governing little gear 41 of the speed ratio system of each active square position is adjusted with same active square position Fast gear wheel 43 coordinates.
Visible in Figure 65, Figure 66, active square position speed ratio system special case two：Active square position speed governing sliding axle 71 two ends with Active square position speed governing slip bracing strut 72 is fixedly connected, and active square position speed governing slip bracing strut 72 is fixedly connected with housing 3, actively In the hole of active square position support 42, active square position support 42 can prolong active square position speed governing sliding axle to square position speed governing sliding axle 71 71 axis direction moves back and forth, and the little axle of active square position speed governing rocking arm 73 is fixed on active square position support 42, and active square position is adjusted The little axle 73 of fast rocking arm in the elongated hole of active square position speed governing rocking arm 74 one end, active square position speed governing rocking arm 74 other end with actively flat Disk speed governing axle 49 is fixedly connected, and so with the back rotation of coming of active square position speed governing axle 49, active square position speed governing rocking arm 74 is back and forth Swing, active square position speed governing rocking arm 74 drives active square position support 42 and active square position by the little axle 73 of active square position speed governing rocking arm 40 axis directions prolonging active square position speed governing sliding axle 71 move back and forth the speed ratio process it is achieved that active square position.
Visible in Figure 67, Figure 68, active square position speed ratio system special case three：Active square position speed governing sliding axle 71 two ends with Active square position speed governing slip bracing strut 72 is fixedly connected, and active square position speed governing slip bracing strut 72 is fixedly connected with housing 3, actively In the hole of active square position support 42, active square position support 42 can prolong active square position speed governing sliding axle to square position speed governing sliding axle 71 71 axis direction moves back and forth, and active square position speed governing tooth bar 70 is fixed on active square position support 42, active square position timing gear Wheel 69 is fixed on active square position speed governing axle 49, and active square position governor gear 69 is coordinated with active square position speed governing tooth bar 70, so With the back rotation of coming of active square position speed governing axle 49, active square position governor gear 69 also comes back rotation, active square position governor gear 69 drive active square position support 42 and active square position 40 to prolong active square position speed governing sliding axle 71 by active square position speed governing tooth bar 70 Axis direction move back and forth the speed ratio process it is achieved that active square position.
Visible in Figure 35, active square position speed governing axle head 64 is fixed on an active square position speed governing axle 49.
Visible in Figure 50, active square position speed governing axle head 64 is individually fixedly connected with active square position speed governing shaft end gear 67, Active square position speed governing shaft end gear 67 is coordinated with active square position speed governing gear wheel 43.
In Fig. 1, Fig. 2, Fig. 5, Fig. 6, Figure 37, Figure 38, Figure 39, Figure 40, Figure 41, Figure 42, Figure 43, Figure 44, Figure 45, Tu46Zhong It can be seen that, middle square position system：Middle square position feed screw nut 1 in middle square position support 12 part is joined with middle square position leading screw 6 Close, middle square position support 12 some pass through middle square position bearing 55 and coordinate with centre square position 10, middle square position leading screw 6 exists The side of middle square position 10, middle square position feed screw nut 1 is one with middle square position support 12 or is fixedly connected, middle square position 10 (include in active square position 40 and passive square position：Fixing passive square position 36, slide passive square position 14 and middle passive square position 68) it Between work, middle square position leading screw 6 can be that lead screw, ball-screw (comprise：Ball-screw and roller screw) and static pressure silk The matched middle square position feed screw nut 1 of thick stick can be slip screw, roll screw (comprise：Ball screw and roller screw) And static pressure screw.
Several organization plans of middle square position：1st, middle square position bearing 55 is double-deck bearing in the centre bore of middle square position 10 (see Figure 41).2nd, middle square position bearing 55 is monolayer bearing in the centre bore of middle square position 10 (see Figure 42).3rd, middle square position axle Hold 55 be double-deck bearing in the centre bore of middle square position 10, and middle square position 10 thickeies (see Figure 43).4th, middle square position 10 does not have There is centre bore, middle square position bearing 55 is arranged on the central shaft of middle square position 10, the central shaft of middle square position 10 and centre are put down Disk 10 is to be fixedly connected, or one (see Figure 46).Middle square position support 12 species：1st, each middle square position 10 has in one Between square position leading screw 6 in the middle of square position support 12 and, the axis of middle square position support 12 is perpendicular to output shaft 37 axis (see figure： 37)；2nd, there are square position leading screw 6 in the middle of a middle square position support 12 and, middle square position support 12 in each middle square position 10 Axis and output shaft 37 axis hold certain angle (see Figure 38)；3rd, there are two middle square position support 12 and each middle square position 10 Square position leading screw 6 in the middle of two, the axis of middle square position support 12 is perpendicular to output shaft 37 axis (see Figure 39)；4th, in the middle of each There is square position leading screws 6, middle square position support 12 axis and output shaft 37 axle in the middle of two middle square position supports 12 and two square position 10 Line holds certain angle (see Figure 40).
Visible in fig. 12, main story minimum speed ratio, middle square position 10 and active square position 40 are all near output shaft 37 Position.
Visible in fig. 13, main story high pulling torque slowest ratio, middle square position 10 and active square position 40 are all farthest away from output The position of axle 37.
Visible in fig. 14, main story slowest ratio, middle square position 10 is propped up in the position farthest away from output shaft 37, active square position Frame crossbeam 35 is closest to centre square position 10.
Visible in fig .15, across active square position rack beam 35, middle square position 10 is farthest away from defeated for middle square position 10 The position of shaft 37, middle square position 10 one end is across active square position rack beam 35.
Visible in figure 16, reversion speed ratio is maximum, and middle square position 10 is propped up in the position farthest away from output shaft 37, active square position Frame crossbeam 35 is closest to centre square position 10.
Visible in fig. 17, reversion speed ratio is minimum, and closest to output shaft 37, middle square position 10 is farthest away from master for active square position 40 Dynamic square position rack beam 35.
Visible in Figure 31, Figure 32, Figure 33, Figure 34, Figure 35, Figure 36, this kind of infinitely variable speeds of square position 10 parallel connection in the middle of 4 In device, middle square position 10 quantity increased outside 1/3 than middle square position 10 quantity of square position 10 parallel connections in the middle of 3, remaining and centre Square position 10 cooperation number of parts accordingly increased 1/3, that is, the speed ratio system quantity of each active square position and each The speed ratio system quantity of middle square position both increases 1/3.But still using 24, middle square position of an input idler gear Speed governing gear wheel 44 and an active square position speed governing gear wheel 43.
Visible in Figure 47, Figure 48, Figure 49, Figure 50, Figure 51, Figure 52, Figure 53, Figure 54, Figure 55, Figure 56, Figure 57, Figure 58,5 In this kind of buncher of individual middle square position 10 parallel connection, the middle square position quantity middle square position number more in parallel than 3 middle square positions Amount increased outside 2/3, and remaining has accordingly increased 2/3 with the number of parts of middle square position 10 cooperation, i.e. each active square position Speed ratio system quantity and the quantity of speed ratio system of each middle square position both increase 2/3.But still use one Square position speed governing gear wheel 44 and an active square position speed governing gear wheel 43 in the middle of input idler gear 24,.
In the various figures, structure in parallel and serial：We are (including with same passive square position：Fixing passive square position 36, in Between passive square position 68 and passive square position 14 of sliding) middle square position 10 quantity that contacts is called number in parallel, the present invention can with 2 with The middle square position 10 of upper (containing 2) is in parallel, the middle square position 10 of the speed ratio system quantity of each active square position 40 and parallel connection Quantity is identical, and the speed ratio system quantity of each middle square position is also identical with middle square position 10 quantity in parallel；Each two Passive square position (includes：Fixing passive square position 36, passive square position 14 of sliding, middle passive square position 68) between structure cry a change Fast device, can be connected with more than 2 (containing 2) variators, the variator quantity of series connection is exactly the serial number of this kind of buncher, The mode of series connection：The variator of multiple series connection shares an output shaft 37, and the variator of multiple series connection shares an input shaft 13, The speed ratio system quantity of each active square position is still identical with middle square position 10 quantity in parallel, each middle square position Speed ratio system quantity is also identical with middle square position 10 quantity in parallel.
The operation principle of this kind of buncher is described in conjunction with each figure：
1st, power transmission operation principle：Power enters this buncher from input shaft end 28, and (1) input shaft end 28 is defeated Enter in the structure on idler gear 24, power is passed to input idler gear 24 by input shaft end 28, input idler gear 24 will move Power passes to each input shaft gear 1, then passes to each input shaft 13 by input shaft gear 1；(2) input shaft end 28 is one In organization plan on individual input shaft 13, power passes to an input shaft 13 from input shaft end 28 1 tunnel, separately leads up to input Idler gear 24 passes to each input shaft gear 1, then passes to other input shafts 13 by input shaft gear 1；(3) in input In the structure that axle head 28 is individually fixedly connected with input shaft end gear 65, power is directly transmitted to input shaft end tooth from input shaft end 28 Wheel 65, passes to input idler gear 24 by input shaft end gear 65, and power is passed to each input shaft by input idler gear 24 again Gear 1.Again each input shaft 13 is passed to by each input shaft gear 1, power passes through input shaft 13, input shaft gear two 52nd, active square position carrier gear 51 passes to active square position gear 29, and active square position gear 29 passes to active square position 40, again in hydraulic pressure During cylinder compression, power is passed to middle square position 10 by frictional force by active square position 40, and middle square position 10 is passed to also by frictional force The passive square position of fixation 36 and passive square position 14 of sliding, pass to output shaft 37 by each passive square position, power is spread out of by output shaft 37 Variator.
2nd, hydraulic cylinder works principle：After hydraulic oil pressurization, oil pressure one side acts on the passive square position 14 of slip；On the one hand Act in hydraulic plate 18, hydraulic plate 18 pulls hydraulic lever hinge 16, hydraulic lever hinge by hydraulic lever hinge seat 17 16 pull hydraulic lever 20 again, and hydraulic lever 20 compresses slip quilt for fulcrum by hydraulic lever block 21 with hydraulic lever support 23 Dynamic square position 14.
3rd, speed ratio operation principle：(1) square position speed ratio operation principle in the middle of：Speed governing power is by middle square position speed governing axle head 47 this buncher of entrance, in the structure on square position speed governing axle 4 in the middle of middle square position speed governing axle head 47 is fixed on, adjust Quick-action power square position speed governing little gear 2 in the middle of middle square position speed governing axle head 47 passes to, this middle square position speed governing little gear 2 will Speed governing power passes to middle square position speed governing gear wheel 44, and middle square position speed governing gear wheel 44 is passed to remaining each middle square position again and adjusted Fast little gear 2, each middle square position speed governing little gear 2 passes through the speed ratio system of each middle square position, drives in the middle of each Between the Yanzhong of square position 10, square position leading screw 6 axis direction moves back and forth it is achieved that the middle regulation to speed ratio for the square position 10；In middle square position In the structure that speed governing axle head 47 is individually fixedly connected with middle square position speed governing shaft end gear 66, middle square position speed governing shaft end gear 66 Coordinate with middle square position speed governing gear wheel 44, speed governing power passes through middle square position speed governing axle head tooth from middle square position speed governing axle head 47 Wheel 66 passes to middle square position speed governing gear wheel 44, and it is little that remaining each middle square position speed governing passed to again by middle square position speed governing gear wheel 44 Gear 2, each middle square position speed governing little gear 2 passes through the speed ratio system of each middle square position, drives each middle square position 10 leading screw of square position between Yanzhong 6 axis direction moves back and forth it is achieved that the middle regulation to speed ratio for the square position 10.
(2) active square position speed ratio operation principle：It is fixed on an active square position speed governing in active square position speed governing axle head 64 In structure on axle 49, speed governing power passes to an active square position speed governing axle 49 from active square position speed governing axle head 64 1 tunnel, another Active square position speed governing gear wheel 43 is passed to by an active square position speed governing little gear 41 in road, and active square position speed governing gear wheel 43 is again Pass to remaining each active square position speed governing little gear 41, each active square position speed governing little gear 41 passes through each active square position Speed ratio system, drives each active square position 40 to prolong active square position leading screw 8 axis direction and moves back and forth it is achieved that active square position 40 Regulation to speed ratio；The structure being individually fixedly connected with active square position speed governing shaft end gear 67 in active square position speed governing axle head 64 In, active square position speed governing shaft end gear 67 is coordinated with active square position speed governing gear wheel 43, and speed governing power is from active square position speed governing axle Active square position speed governing gear wheel 43 is passed to by active square position speed governing shaft end gear 67 in end 64, and active square position speed governing gear wheel 43 is again Pass to remaining each active square position speed governing little gear 41, each active square position speed governing little gear 41 passes through each active square position Speed ratio system, drives each active square position 40 to prolong active square position leading screw 8 axis direction and moves back and forth it is achieved that active square position 40 Regulation to speed ratio.
(3) operation principle that in the middle of, square position speed ratio and active square position speed ratio combine：Our regulation speed ratios are inputs The absolute value of rotating speed divided by the absolute value of output rotating speed, 1) set first in the middle of square position 10 and active square position 40 all leaning on most The position of nearly output shaft 37, at this moment in the middle of square position 10 contact with the outmost turns of active square position 40, and output shaft 37 is main story, at this moment Variator is main story minimum speed ratio (see Figure 12)；2) then middle square position 10 with active square position 40 uplink synchronization (to away from output Direction of principal axis moves), until middle square position 10 is contacted with the outmost turns of passive square position, this process is to wait moment of torsion (peak torque) to adjust Fast process, positive transmission velocity ratio is gradually increased (see Figure 13)；3) and then middle square position 10 stops moving, active square position 40 is descending, until Active square position rack beam 35 increases, until maximum (see Figure 14) further closest to centre square position 10, at this moment positive transmission velocity ratio；4) Then active square position 40 descending further (moving to close to output direction of principal axis), active square position rack beam 35 is across middle square position 10, this process is forward and backward conversion, and speed ratio reaches reversion slowest ratio, this cross range request hydraulic cylinder pressure relief (see Figure 15, Figure 16)；5) and then middle square position 10 is motionless, active square position 40 continues traveling downwardly, and the outer ring of active square position 40 is connect with centre square position 10 Touch, this process reversion speed ratio constantly reduces；6) and then active square position 40 and middle square position 10 DL synchronization, until active square position 40 closest to output shaft 37, and this process is to wait moment of torsion (peak torque) speed regulation process, and reversion speed ratio reduces, further until subtracting To minimum (see Figure 17).

Claims (7)

1. a kind of active square position speed governing type buncher, including input shaft, output shaft, fixing passive square position, slides and passively puts down Disk, middle square position, active square position, middle square position speed ratio system, power is passed to described by described active square position by frictional force Middle square position, power is passed to the passive square position of described fixation and passive square position of sliding, power by frictional force by described middle square position Described output shaft is passed to by the passive square position of described fixation and passive square position of sliding, in the speed ratio system of middle square position, in Between square position support move back and forth along the axis direction of middle square position leading screw together with middle square position, realize in the middle of square position speed ratio Process, is characterized in that：This buncher also includes active square position speed ratio system, and described active square position speed ratio system can make Described active square position is up, moves to away from described output direction of principal axis, described active square position also can be made descending, that is, to close to institute State output direction of principal axis to move, and each active square position synchronizing moving, in moving process, the axial line of each active square position respectively with The distance of the axial line of described output shaft is equal all the time.
2. active square position according to claim 1 speed governing type buncher, is characterized in that：Described active square position speed ratio System structure includes：Active square position lead screw shaft bearings are fixedly connected with the casing, and active square position leading screw one end is arranged on by bearing In the lead screw shaft bearings of active square position, the active square position leading screw other end is arranged on housing by bearing, the spiral shell of active square position leading screw Active square position feed screw nut cooperation on stricture of vagina part and active square position support, carrys out back rotation, actively with active square position leading screw Square position feed screw nut moves back and forth along the axis direction of active square position leading screw together with active square position with active square position support, real The now speed ratio process of active square position.
3. active square position according to claim 1 speed governing type buncher, is characterized in that, described middle square position speed governing system System includes：Middle square position feed screw nut in the support part of middle square position and the leading screw cooperation of middle square position, middle square position support Some passes through middle square position bearing and the cooperation of middle square position, the side in middle square position for the middle square position leading screw.
4. active square position according to claim 1 speed governing type buncher, is characterized in that：The speed governing of described active square position Also include than system structure：Active square position screw gear, active square position screw gear and active are fixed with the leading screw of active square position Active square position speed governing shaft gear cooperation on square position speed governing axle, speed governing shaft gear in active square position is fixing with active square position speed governing axle even Connect, speed governing axle in active square position is arranged vertically with active square position leading screw axis, the active square position speed governing on active square position speed governing axle is little Gear is fixedly connected with active square position speed governing axle, and each active square position speed governing little gear is big with same active square position speed governing Gear coordinates.
5. active square position according to claim 1 speed governing type buncher, is characterized in that：This buncher at least 2 Individual middle square position is in parallel.
6. active square position according to claim 1 speed governing type buncher, is characterized in that：At least 2 variator series connection.
7. active square position according to claim 1 speed governing type buncher, is characterized in that：Hydraulic compression system includes, Hydraulic lever support is fixedly connected with output shaft, and when hydraulic cylinder pressurizes, hydraulic lever one end props up the passive square position of slip, hydraulic pressure The hole of its intermediate part is hinged with hydraulic lever support, and hydraulic plate holds the hydraulic lever other end, and output shaft is at the center of hydraulic plate Pass through in hole, hydraulic plate can its slip relatively on output shaft.
CN201410060739.1A 2014-02-24 2014-02-24 Flat driving disk speed regulation type CVT (continuously variable transmission) Expired - Fee Related CN104214297B (en)

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CN104214297B (en) * 2014-02-24 2017-02-15 谭波 Flat driving disk speed regulation type CVT (continuously variable transmission)
CN110905986A (en) * 2019-12-16 2020-03-24 哈尔滨理工大学 Large-torque pulse type continuously variable transmission

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