CN102345715A - Stepless speed changer - Google Patents
Stepless speed changer Download PDFInfo
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- CN102345715A CN102345715A CN2010102468450A CN201010246845A CN102345715A CN 102345715 A CN102345715 A CN 102345715A CN 2010102468450 A CN2010102468450 A CN 2010102468450A CN 201010246845 A CN201010246845 A CN 201010246845A CN 102345715 A CN102345715 A CN 102345715A
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Abstract
The invention relates to a stepless speed changer. The stepless speed changer comprises a shell, a driving flat plate frame, a driving flat plate, a fixed driven flat plate, an intermediate flat plate shaft, a sliding driven flat plate, an intermediate flat plate, an intermediate flat plate movable frame, a driving flat plate gear, a driving flat plate shaft and the like, wherein the driving flat plate is divided into an upper half part and a lower half part of the driving flat plate by the driving flat plate shaft; the rotation direction of a power output shaft when the intermediate flat plate is contacted with the upper half part of the driving flat plate is opposite to that of the power output shaft when the intermediate flat plate is contacted with the lower half part of the driving flat plate under the condition that the rotation direction of the driving flat plate is consistent, so the positive and negative rotation of the power output shaft is switched through up and down movement of the intermediate flat plate in a mode of crossing the shaft end of the driving flat plate shaft.
Description
The invention belongs to the stepless speed variator field.
Because the most successful stepless speed variator was the CVT stepless speed variator in the past; This stepless speed variator is to lean on awl dish and Steel Belt Transmission power; The limitations restrict of this stepless speed variator being widely used of this stepless speed variator, and stepless speed variator of the present invention leans on active square position, passive square position and middle square position to come transfer motion power.
The objective of the invention is to install the backward gear mechanism that advances in addition additional in order to solve former stepless speed variator; Cause the problem of loss of rising and the power of cost; Under the consistent situation of active square position sense of rotation, through middle square position respectively with the first half of active square position with and Lower Half cooperate the conversion that realizes the clockwise and anticlockwise of passive square position.
The structure of this stepless speed variator comprises: housing, active square position frame, active square position, fixing passive square position, middle square position axle, the passive square position of sliding, power input gear, power input shaft, middle square position, power output gear, pto, oil hydraulic cylinder fixed tray, hydraulic circuit, middle square position movable frame, active square position gear, active square position axle, active square position mandrel, middle carrier gear, oil hydraulic cylinder etc.The speed control system structure: leading screw, middle square position adjusting gear, adjusting axle, adjusting gear, adjusting gear ring are regulated in middle square position adjusting nut, middle square position.Initiatively the square position frame is fixedly connected or one with housing; Initiatively the square position is fixedly connected or one with active square position gear; Fixing passive square position is fixedly connected or one with pto; Because the effect of feather key; The passive square position of sliding can endwisely slip on pto; Can not rotate relative to pto, the oil hydraulic cylinder fixed tray is fixed on the pto.During work; The square position is clipped in frictionally transmission power between active square position and the fixing passive square position in the middle of one group; The square position is clipped in the initiatively square position and the frictionally transmission power between the passive square position that slides in the middle of another group; Middle square position adjusting nut is regulated leading screw with middle square position and is cooperated; Middle square position adjusting gear and the engagement of adjusting gear ring; Adjusting gear on the regulating shaft and the engagement of adjusting gear ring; The periphery of middle square position adjustable shelf cooperates with the inner headed face of housing; Adjustable shelf inner headed face axis direction along housing in the inner headed face of housing in middle square position slides; But can not rotate in the inner headed face of middle square position adjustable shelf at housing under the effect of feather key; Power output shaft passes from the hole of middle square position axle base; Fixedlyed connected by middle square position set bolt with middle square position positioning disk in middle square position; And the nut of middle square position set bolt is on middle square position; Adjusting nut angle, middle square position is in middle square position and the formed cannelure of middle square position positioning disk; Can freely rotate relative to middle square position; Middle carrier gear axle sleeve is fixed on the frame of active square position, and is rotatably assorted with middle carrier gear formation.Initiatively the square position axle all has circular arc with the termination of active square position mandrel, and arc diameter has guaranteed middle square position when striding across active square position axle head convexity than middle square position somewhat larger in diameter, and displacement is minimum.Initiatively the square position mandrel is inserted in the hole of active square position axle; Initiatively the square position axle is in the gear center hole of active square position, and rotating with active square position gear cooperates, also can be through the bearing cooperation that rotates; Initiatively the square position gear is fixedly connected with the active square position, also can be one.Slide passive square position, oil hydraulic cylinder fixed tray and oil seal ring formed oil hydraulic cylinder.Active square position frame special case one: initiatively the periphery of square position frame cooperates with the inner headed face of housing; Initiatively frame inner headed face axial direction along housing in the inner headed face of housing in square position slides, but initiatively can not rotate in the inner headed face of square position frame at housing under the effect of feather key.Active square position frame special case two: initiatively the square position frame is divided into two-part; The i.e. upward dish of active square position frame special case two and the initiatively lower wall of square position frame special case two; Initiatively the periphery of square position frame also is divided into two-part; Initiatively the lower wall of going up dish and active square position frame special case two of square position frame special case two is fixedly connected by active square position frame fixing bolt; Initiatively the periphery of square position frame cooperates with the inner headed face of housing; Initiatively frame inner headed face axial direction along housing in the inner headed face of housing in square position slides, but initiatively can not rotate in the inner headed face of square position frame at housing under the effect of feather key.Active square position frame special case three: initiatively the square position frame is divided into two-part; The i.e. upward dish of active square position frame special case three and the initiatively lower wall of square position frame special case three; Initiatively the lower wall of going up dish and active square position frame special case three of square position frame special case three is fixedly connected by active square position frame fixing bolt; Initiatively the periphery of square position frame cooperates with the inner headed face of housing; Initiatively frame inner headed face axial direction along housing in the inner headed face of housing in square position slides, but initiatively can not rotate in the inner headed face of square position frame at housing under the effect of feather key.Middle square position special case one: the nut of the middle square position fixing bolt of square position and middle square position positioning disk is on the positioning disk of middle square position in the middle of fixing.Middle square position special case two: the snap ring on middle square position has limited catch, and square position in the middle of making it to break away from, adjusting nut angle, middle square position can freely be rotated relative to middle square position in middle square position with in the formed circular groove of catch.The passive square position special case one of sliding: sliding has pressurizing block, oil hydraulic cylinder movable disk and block between passive square position and the oil hydraulic cylinder fixed tray; Block is fixed on the pto by fixing pin; Pressurizing block is in oil hydraulic cylinder movable disk guiding groove and block guiding groove, and oil hydraulic cylinder movable disk guiding groove and the slip of block guiding groove relatively.Initiatively one: elongated active square position axle of square position axle special case and at one end active square position shaft tray only have that initiatively the square position axle head is protruding.Active square position axle special case two: initiatively mandrel outer end, square position is with initiatively axle outer end, square position is flat with the card of active square position, and initiatively the square position axle head is not protruding.Owing to there has not been initiatively square position axle head convexity, when middle square position strode across the axle head of active square position axle, middle square position movable frame did not move, and does not also move the passive square position of sliding.Adjusting nut angle, middle square position special case one: adjusting nut angle, square position in the middle of having only on the adjusting nut of middle square position, there is annular or the semicircular structure around middle square position axle end, adjusting nut angle, middle square position.Adjusting nut angle, middle square position special case two: middle square position bearing is fixedly connected with middle square position, and middle square position bearing can slidably reciprocate on the axle of middle square position, and middle square position bearing inner race is fixedly connected with adjusting nut angle, middle square position or is one.Governing system structure special case one: middle square position adjusting gear is in the axle base of middle square position; Regulating leading screw with middle square position fixedlys connected; And with regulate the axle sleeve pinion and regulate the axle sleeve sliding pinion and cooperate; Regulating axle sleeve sliding pinion alignment pin one end fixedlys connected with middle square position axle base; The other end is in regulating axle sleeve sliding pinion locating slot; The axle base can only rotate and can not move feasible adjusting axle sleeve sliding pinion relative to middle square position; Regulating axle sleeve sliding pin one end is fixed on the adjusting axle sleeve sliding pinion; The other end is in regulating the axle sleeve sliding tray; Regulate the axle sleeve sliding pin when axle base moves in middle square position is regulating in the axle sleeve sliding tray always; Regulate axle sleeve and drive the rotation of adjusting axle sleeve sliding pinion; Regulating the axle sleeve gear wheel can be one with regulating the axle sleeve pinion; And all fixedly connected with the adjusting axle sleeve; Regulate the axle sleeve gear wheel and cooperate with adjusting gear, regulating shaft is enclosed within the axle base of middle square position.
The operation principle of this buncher: 1. power transfer path: power gets into this kind buncher from power input shaft; The drive power input gear rotates; Power again by power input gear to square position gear initiatively; Power divides two-way then; One the road from the direct geared of active square position to the active square position; Another road from the active square position gear by middle carrier gear again to other active square position gear; Power again from the active square position gear to the active square position; Then power from the active square position to middle square position; Power divides two-way again from middle square position; One the road from middle square position by fixing passive square position to power output shaft; Pass through from middle square position to slide passive square position to power output shaft in another road, power spreads out of from power output gear by power output shaft again.2. the principle of transfer motion power: middle square position one end contacts with the fixing passive square position or the passive square position of sliding; The other end contacts with the active square position; Hydraulic oil in the oil hydraulic cylinder has pressure; Act on the passive square position of sliding; And passive square position of slip and middle square position are compressed; Simultaneously through middle square position carrier fluid pressure; The square position compresses with the active square position in the middle of making; The square position compresses with fixing passive square position in the middle of also making; Above-mentioned impacting force has produced frictional force; Power input shaft drives power input gear and rotates, and power input gear drives initiatively square position rotation, when rotating in the active square position; Rotated the square position in the middle of this frictional force drove; Middle square position drives fixing passive square position again and rotates with the passive square position of sliding, and fixing passive square position drives pto again with the passive square position of sliding and rotates outputting power.3. speed ratio is regulated: regulating shaft drives adjusting gear and rotates; Adjusting gear drives regulates the gear ring rotation; The square position adjusting gear rotated in the middle of the regulating tooth astragal was moving; The leading screw rotation was regulated in the square position in the middle of middle square position adjusting gear drove; Middle square position is regulated leading screw and is driven middle square position adjusting nut upstream or downstream; The square position moved up and down in the middle of middle square position adjusting nut drove by adjusting nut angle, middle square position; Because speed ratio is to be determined with the ratio that contacts circular diameter of active square position and middle square position by the circular diameter that contacts of fixing passive square position or slide passive square position and middle square position; Therefore the square position moves up and down the variation that has realized above-mentioned contact circular diameter in the middle of; Also just realize the variation of speed ratio, reached the purpose of regulating speed ratio.4. the adjusting of clockwise and anticlockwise: initiatively the square position is the boundary with active square position axle; Be divided into the first half of active square position and the Lower Half of active square position; Under the situation of active square position sense of rotation unanimity; Pto direction of rotation when the pto sense of rotation when middle square position contacts with the first half of active square position contacts with the Lower Half of active square position with middle square position, therefore middle square position strides across the initiatively conversion that moves up and down the clockwise and anticlockwise that has just realized pto of the axle head of square position axle.5. middle square position strides across the initiatively protruding process of square position axle head: when up arrival active square position, middle square position axle head is protruding; The oil hydraulic cylinder pressure release; This kind stepless speed variator is in idling conditions; Middle square position begins along the active square position that the axle head convexity continues to advance; Initiatively the middle square position of the protruding extruding of square position axle head is moved outward together with middle square position movable frame simultaneously; Also make the fixing passive square position and the passive square position of sliding apart from increase, passive square position and the oil hydraulic cylinder fixed tray distance of sliding is dwindled.6. in the passive square position special case one of sliding, when middle square position strides across active square position axle head convexity, the oil hydraulic cylinder pressure release, the active square position is moved outside the middle square position of the protruding extruding of axle head, pushes pressurizing block promotion oil hydraulic cylinder movable disk and moves outward; After middle square position strode across active square position axle head convexity, moved inwards hydraulic drive oil hydraulic cylinder movable disk, pressurizing block and the passive square position of slip.7. in active square position frame special case one, square position frame special case two and initiatively in the square position frame special case three initiatively, when middle square position strides across that initiatively the square position axle head is protruding, the oil hydraulic cylinder pressure release, initiatively move the square position in the middle of the protruding extruding of square position axle head, also extruding initiatively the square position frame move.8. in active square position axle special case two, owing to there has not been initiatively square position axle head convexity, when middle square position strode across the axle head of active square position axle, middle square position movable frame did not move, and does not also move the passive square position of sliding.9. in governing system structure special case one; The speed ratio Principles of Regulation: regulating shaft drives adjusting gear and rotates; Adjusting gear drives regulates the rotation of axle sleeve gear wheel; Regulating the axle sleeve gear wheel drives the adjusting axle sleeve and regulates the axle sleeve pinion rotation; Regulating axle sleeve rotates by regulating axle sleeve sliding pin drive adjusting axle sleeve sliding pinion; Regulate the axle sleeve pinion and regulate the leading screw rotation by square position in the middle of the drive of middle square position adjusting gear with adjusting axle sleeve sliding pinion; Middle square position is regulated leading screw and is driven middle square position adjusting nut upstream or downstream; The square position bearing moved up and down in the middle of middle square position adjusting nut drove by adjusting nut angle, middle square position; The square position moved up and down in the middle of middle square position bearing also drove; Because speed ratio is to be determined with the ratio that contacts circular diameter of active square position and middle square position by the circular diameter that contacts of fixing passive square position or slide passive square position and middle square position; Therefore the square position moves up and down the variation that has realized above-mentioned contact circular diameter in the middle of; Also just realize the variation of speed ratio, reached the purpose of regulating speed ratio.
Owing to adopted structure of the present invention, make this kind stepless speed variator have following beneficial effect to be:
1. the power of power transmission and moment of torsion are big.
2. power loss is little.
3. the function that has clockwise and anticlockwise.
Describe in the face of accompanying drawing down:
Fig. 1 is the sectional view of this kind stepless speed variator structure, and put in the positive transposition of pto middle square position;
Fig. 2 is the sectional view of this kind stepless speed variator structure, and middle square position is in the pto neutral;
Fig. 3 is the sectional view of this kind stepless speed variator structure, and middle square position is at the pto backward position;
Fig. 4 is the sectional view of the structure of active square position frame special case one;
Fig. 5 is the A-A sectional view of Fig. 4;
Fig. 6 is the structural drawing of the passive square position of slip special case one, and the passive square position of sliding is in the position of leaning on most the lining;
Fig. 7 is the structural drawing of the passive square position of slip special case one, and the passive square position of sliding is in outermost position;
Fig. 8 is the sectional view of active square position frame;
Fig. 9 is the structural drawing of active square position frame special case three;
Figure 10 is the A-A sectional view of Fig. 9;
Figure 11 is the structural drawing of going up dish of the active square position frame special case three of initiatively square position frame special case three;
Figure 12 is the A-A sectional view of Figure 11;
Figure 13 is the structural drawing of the lower wall of the active square position frame special case three of square position frame special case three initiatively;
Figure 14 is the A-A sectional view of Figure 13;
Figure 15 is the structural drawing of active square position frame special case two;
Figure 16 is the A-A sectional view of Figure 15;
Figure 17 is the structural drawing of going up dish of active square position frame special case two;
Figure 18 is the structural drawing of the lower wall of active square position frame special case two;
Figure 19 is the structural drawing of active square position frame special case one;
Figure 20 is the A-A sectional view of Figure 19;
Figure 21 is the structural drawing of middle square position axle base;
Figure 22 is a structural drawing of regulating gear ring;
Figure 23 is the partial sectional view of this kind stepless speed variator, and middle square position is on the position of pto counter-rotating;
Figure 24 is the partial sectional view of this kind stepless speed variator, and middle square position is on the position that pto is just changeing;
Figure 25 is the A-A sectional view of Fig. 2;
Figure 26 is the structural drawing of active square position axle special case one;
Figure 27 is the structural drawing of active square position axle special case two;
Figure 28 is the right elevation of Figure 21;
Figure 29 is the B-B sectional view of Fig. 2;
Figure 30 is the A-A sectional view of Fig. 3;
Figure 31 is the structural drawing of middle square position adjusting nut;
Figure 32 is the right elevation of Figure 31;
Figure 33 is in the middle square position special case one, the structural drawing of middle square position and middle square position positioning disk assembly;
Figure 34 is the structural drawing of middle square position and middle square position positioning disk assembly;
Figure 35 is the structural drawing of adjusting nut angle, middle square position special case one;
Figure 36 is the A-A sectional view of Figure 35;
Figure 37 is the location maps of three pressurizing block when work;
Figure 38 is the A-A sectional view of Fig. 7;
Figure 39 is the structural drawing of middle square position special case two;
Figure 40 is the C-C sectional view of Fig. 2;
Figure 41 is the structural drawing with this kind stepless speed variator of speed control system structure special case one;
Figure 42 is the B-B sectional view of Figure 41;
Figure 43 is the A-A sectional view of Figure 41;
Figure 44 is a structural drawing of regulating the axle sleeve sliding pinion;
Figure 45 is adjusting axle and adjusting axle sleeve cooperation figure;
Figure 46 is the A-A sectional view of Figure 45;
In each figure: the 1-housing; 2-is the square position frame initiatively; 3-is the square position initiatively; 4-fixes passive square position; Square position axle in the middle of the 5-; Square position adjusting nut in the middle of the 6-; Square position axle guiding groove in the middle of the 7-; Leading screw is regulated in the square position in the middle of the 8-; The 9-passive square position of sliding; The 10-power input gear; The 11-power input shaft; Square position adjusting gear in the middle of the 12-; Square position in the middle of the 13-; Square position positioning disk in the middle of the 14-; Square position axle base in the middle of the 15-; The 16-power output gear; The 17-pto; Square position fixing bolt in the middle of the 18-; The 19-bearing; 20-oil hydraulic cylinder fixed tray; The 21-feather key; The 22-hydraulic circuit; The 23-oil seal ring; Carrier gear axle sleeve in the middle of the 24-; Square position movable frame in the middle of the 25-; 26-is the square position gear initiatively; 27-is the square position axle initiatively; 28-is the square position mandrel initiatively; Carrier gear in the middle of the 29-; 30-is square position axle fixing bolt initiatively, the 31-adjusting axle; The 32-adjusting gear; 33-regulates gear ring; Adjusting nut angle, square position in the middle of the 34-; The 35-fixing pin; The 36-oil hydraulic cylinder; The 37-pressurizing block; 38-oil hydraulic cylinder movable disk; The 39-block; The 40-snap ring; 41-oil hydraulic cylinder movable disk guiding groove; 42-block guiding groove; 43-is the lower wall of square position frame special case two initiatively; 44-initiatively going up of square position frame special case three coils; 45-is the lower wall of square position frame special case three initiatively; 46-is square position frame fixing bolt initiatively; 47-initiatively going up of square position frame special case two coils; The 48-catch; 49-initiatively square position axle head is protruding; 50-regulates the axle sleeve sliding-groove; 51-regulates the axle sleeve gearwheel; 52-regulates the axle sleeve small gear; 53-regulates the axle sleeve sliding pinion; 54-regulates axle sleeve; 55-regulates the axle sleeve sliding pin; 56-regulates axle sleeve sliding pinion locating stud; 57-locatees snap ring; Square position bearing in the middle of the 58-; 59-adjusting axle fixed cover; 60-regulates axle sleeve sliding pinion locating slot.
Visible in Fig. 1; Initiatively square position frame 2 is fixedly connected or one with housing 1; Initiatively square position 3 is fixedly connected or one with active square position gear 26; Fixing passive square position 4 is fixedly connected or one with pto 17; Because the effect of feather key 21; The passive square position 9 of sliding can endwisely slip on pto 17, can not rotate relative to pto 17, and oil hydraulic cylinder fixed tray 20 is fixed on the pto 17.During work; Square position 13 is clipped in frictionally transmission power between active square position 3 and the fixing passive square position 4 in the middle of one group; Square position 13 is clipped in the initiatively square position 3 and the frictionally transmission power between the passive square position 9 that slides in the middle of another group; Middle square position adjusting nut 6 is regulated leading screw 8 with middle square position and is cooperated; Middle square position adjusting gear 12 and 33 engagements of adjusting gear ring; Adjusting gear 32 on the regulating shaft 31 and 33 engagements of adjusting gear ring; The periphery of middle square position adjustable shelf 25 cooperates with the inner headed face of housing 1; Adjustable shelf 25 inner headed face axis direction along housing 1 in the inner headed face of housing 1 in middle square position slides; But in the inner headed face of housing 1, can not rotate at middle square position adjustable shelf 25 under the effect of feather key 21; Power output shaft 17 passes from the hole of middle square position axle base 15; Fixedlyed connected by middle square position set bolt 18 with middle square position positioning disk 14 in middle square position 13; And the nut of middle square position set bolt 18 is on middle square position; Adjusting nut angle, middle square position 34 is in middle square position 13 and middle square position positioning disk 14 formed cannelures; Can freely rotate relative to middle square position 13; Middle carrier gear axle sleeve 24 is fixed on the active square position frame 2; And form with middle carrier gear 29 and to be rotatably assorted, slide passive square position 9, hydraulic cylinder fixed disk 20 and oil seal ring 23 have been formed hydraulic cylinder 36.Square position 13 is bottom in the middle of this moment, and under the certain situation of power input shaft 11 rotating speeds, pto 17 is just to change the fastest.
Visible in Fig. 2, middle square position 13 on active square position axle head protruding 49, the pressure release of oil hydraulic cylinder 36 this moment.
Visible in Fig. 3, middle square position 13 is topmost, at this moment, under the certain situation of power input shaft 11 rotating speeds, pto 17 be reverse the fastest.
Visible in Fig. 4; Initiatively in frame 2 special cases one of square position; Initiatively the periphery of square position frame 2 cooperates with the inner headed face of housing 1; Initiatively frame 2 inner headed face axial direction along housing 1 in the inner headed face of housing 1 in square position slides, but can not rotate in the inner headed face of housing 1 at active square position frame 2 under the effect of feather key 21.
Visible in Fig. 5, the distribution relation of square position axles 5 and square positions 13, three centres in the middle of three also can be middle square position axle 5 and the middle square position 13 more than two or three more than two or three.
Visible in Fig. 6, the structural drawing of passive square position 9 special cases one of sliding, the passive square position 9 of sliding is in the position of leaning on most the lining.
Visible in Fig. 7, the structural drawing of passive square position 9 special cases one of sliding, the passive square position 9 of sliding is in outermost position.
Visible in Fig. 8, initiatively square position frame 2 is an one with housing 1.
At Fig. 9; 10; 11; 12; 13; Visible in 14; Active square position frame 2 special cases three; Initiatively square position frame 2 is divided into two-part; The i.e. upward dish 44 of active square position frame special case three and the initiatively lower wall 45 of square position frame special case three; Initiatively the lower wall 45 of going up dish 44 and active square position frame special case three of square position frame special case three is fixedly connected by active square position frame fixing bolt 46; Initiatively the periphery of square position frame 2 cooperates with the inner headed face of housing 1; Initiatively frame 2 inner headed face axial direction along housing 1 in the inner headed face of housing 1 in square position slides, but can not rotate in the inner headed face of housing 1 at active square position frame 2 under the effect of feather key 21.
At Figure 15; 16; 17; Visible in 18; Active square position frame 2 special cases two; Initiatively square position frame 2 is divided into two-part; The i.e. upward dish 47 of active square position frame special case two and the initiatively lower wall 43 of square position frame special case two; Initiatively the periphery of square position frame 2 also is divided into two-part; Initiatively the lower wall 43 of going up dish 47 and active square position frame special case two of square position frame special case two is fixedly connected by active square position frame fixing bolt 46; Initiatively the periphery of square position frame 2 cooperates with the inner headed face of housing 1; Initiatively frame 2 inner headed face axial direction along housing 1 in the inner headed face of housing 1 in square position slides, but can not rotate in the inner headed face of housing 1 at active square position frame 2 under the effect of feather key 21.
Visible in Figure 19,20; Active square position frame 2 special cases one; Initiatively the periphery of square position frame 2 cooperates with the inner headed face of housing 1; Initiatively frame 2 inner headed face axial direction along housing 1 in the inner headed face of housing 1 in square position slides, but can not rotate in the inner headed face of housing 1 at active square position frame 2 under the effect of feather key 21.
Visible in Figure 21,28, middle square position axle guiding groove 7 is arranged on the middle square position axle 5, there is middle square position axle base 15 intermediate portion, and a plurality of middle square positions axle 5 leans on middle square position axle base 15 to combine.
Visible in Figure 22, the structure of regulating gear ring 33.
Visible in Figure 23, the state of the middle square position 13 during pto 17 counter-rotatings.
Visible in Figure 24, the state of the middle square position 13 when pto 17 is just changeing.
Visible in Figure 25, initiatively square position axle 27 all has circular arc with the termination of active square position mandrel 28, and arc diameter has guaranteed that than middle square position 13 somewhat larger in diameter middle square position 13 is striding across protruding 49 o'clock of active square position axle head, and displacement is minimum.Initiatively square position mandrel 28 is inserted in the hole of active square position axle 27; Initiatively square position axle 27 is in gear 26 center holes of active square position; Rotating with active square position gear 26 cooperates, or through the bearing cooperation that rotates, initiatively square position gear 26 is fixedly connected or one with active square position 13.
Visible in Figure 26, initiatively one, elongated active square position mandrel of square position axle 27 special cases 28 and at one end active square position shaft tray 50 only have initiatively square position axle head protruding 49.
Visible in Figure 27; Active square position axle 27 special cases two; Initiatively mandrel 28 outer ends, square position are with initiatively axle 27 outer ends, square position are flat with the card of active square position 3; Active square position axle head convexity 49; Owing to there has not been initiatively square position axle head protruding 49; When middle square position 13 strode across the axle head of active square position axle 27, middle square position movable frame 25 did not move, and does not also move the passive square position 9 of sliding.
Visible in Figure 29, the position relation of pto 17, power input shaft 11 and adjusting axle 31.
Visible in Figure 30, all in the hole of middle square position axle 5, the axle guiding groove stretches out middle square position axle 5 for 7 li from middle square position at adjusting nut angle, middle square position 34 for middle square position adjusting nut 6 and middle square position adjusting leading screw 8.
Visible in Figure 31,32, middle square position adjusting nut 6 is one with adjusting nut angle, middle square position 34.
Visible in Figure 33, middle square position 13 special cases one, the nut of the middle square position fixing bolt 18 of fixing middle square position 13 and middle square position positioning disk 14 is on middle square position positioning disk 14.
Visible in Figure 34, middle square position 13 is fixedly connected with the middle square position of positioning disk 14 usefulness, middle square position fixing bolt 18, and the nut of middle square position fixing bolt 18 is on middle square position 13, and there is chamfering at 13 edges, middle square position.
Visible in Figure 35,36, adjusting nut angle, middle square position 34 special cases one have only adjusting nut angle, a middle square position 34 on the middle square position adjusting nut 6, and there is annular or the semicircular structure around middle square position axle 5 34 ends, adjusting nut angle, middle square position.
Visible in Figure 37, in passive square position 9 special cases one of sliding, the position relation of three pressurizing block 37 when work.
Visible in Figure 38, in passive square position 9 special cases one of sliding, the position relation of oil hydraulic cylinder movable disk guiding groove 41 and block guiding groove 42.
Visible in Figure 39; Middle square position 13 special cases two; Snap ring 40 on middle square position 13 has limited catch 48, and square position 13 in the middle of making it to break away from, adjusting nut angle, middle square position 34 can freely be rotated relative to square position 13, centre in middle square position 13 and catch 48 formed circular grooves.
Visible in Figure 40, the meshing relation of power input gear 10, active square position gear 26 and middle carrier gear 29.
At Figure 41; 42; 43; 44; 45; Visible in 56; In speed control system structure special case one; Middle square position adjusting gear 12 is in middle square position axle base 15; Regulating leading screw 8 with middle square position is fixedly connected; And with regulate axle sleeve small gear 52 and regulate axle sleeve sliding pinion 53 and cooperate; Regulating axle sleeve sliding pinion locating stud 56 1 ends is fixedly connected with middle square position axle base 15; The other end is in regulating axle sleeve sliding pinion 53 locating slots; Axle base 15 can only rotate and can not move feasible adjusting axle sleeve sliding pinion 53 relative to the square position, centre; Regulating axle sleeve sliding pin 55 1 ends is fixed on the adjusting axle sleeve sliding pinion 53; The other end is in regulating axle sleeve sliding-groove 61; Regulate axle sleeve sliding pin 55 when axle base 15 moves in middle square position is regulating in the axle sleeve sliding-groove 61 always; Regulate axle sleeve 54 and drive 53 rotations of adjusting axle sleeve sliding pinion; Regulating axle sleeve gearwheel 51 can be one with regulating axle sleeve small gear 52; And all be fixedly connected with adjusting axle sleeve 54; Regulate axle sleeve gearwheel 51 and cooperate, regulate axle sleeve 54 in middle square position axle base 15 with adjusting gear 32.
Visible in each figure; The operation principle of this buncher: 1. power transfer path: power gets into this kind bunchers from power input shaft 11; Driving power input gear 10 rotates; Power again by power input gear 10 to square position gear 26 initiatively; Power divides two-way then; One the road from the active square position gear 26 directly to active square position 3; Another road from the active square position gear 26 by middle carrier gear 29 again to other active square position gear 26; Power again from the active square position gear 26 to active square position 3; Then power from active square position 3 to middle square position 13; Power divides two-way again from middle square position 13; One the road from middle square position 13 by fixing passive square position 4 to power output shaft 17; Passive square position 9 is passed through to slide to power output shaft 17 from middle square position 13 in another road, and power spreads out of from power output gear 16 by power output shaft 17 again.2. the principle of transfer motion power: middle square position 13 1 ends contact with the fixing passive square position 4 or the passive square position 9 of sliding; The other end contacts with active square position 3; Hydraulic oil in the hydraulic cylinder 36 has pressure; Act on the passive square position 9 of sliding; And the passive square position 9 of sliding is compressed with middle square position 13; Simultaneously by middle square position 13 transmission fluid pressure; Square position 13 compresses with active square position 3 in the middle of making; Square position 13 compresses with fixing passive square position 4 in the middle of also making; Above-mentioned thrust has produced frictional force; Power input shaft 11 drives power input gear 10 and rotates; Power input gear 10 drives initiatively square position 3 rotations; 3 when rotating in the active square position; Rotated square position 13 in the middle of this frictional force drove; Middle square position 13 drives fixing passive square position 4 again and rotates with the passive square position 9 of sliding, and fixing passive square position 4 drives power output shaft 16 again with the passive square position 9 of sliding and rotates outputting power.3. speed ratio is regulated: regulating shaft 31 drives adjusting gear 32 and rotates; Adjusting gear 32 drives regulates gear ring 33 rotations; Regulate gear ring 33 and drive 12 rotations of middle square position adjusting gear; Leading screw 8 rotations were regulated in the square position in the middle of middle square position adjusting gear 12 drove; Middle square position is regulated leading screw 8 and is driven middle square position adjusting nut 6 upstream or downstream; Square position 13 moved up and down in the middle of middle square position adjusting nut 6 drove by adjusting nut angle, middle square position 34; Because speed ratio is to be determined with the ratio that contacts circular diameter of active square position 3 and middle square position 13 by the circular diameter that contacts of fixing passive square position 4 or slide passive square position 9 and middle square position 13; Therefore square position 13 moves up and down the variation that has realized above-mentioned contact circular diameter in the middle of; Also just realized the variation of speed ratio; Reached the purpose of regulating speed ratio; 4. the adjusting of rotating: initiatively square position 3 is the boundary with active square position axle 27; Be divided into the first half of active square position 3 and the Lower Half of active square position 3; Under the situation of active square position 3 rotation directions unanimity; Power output shaft 17 direction of rotation when power output shaft 17 rotation directions when middle square position 13 contacts with the first half of active square position 3 contact with the Lower Half of active square position 3 with middle square position 13, therefore middle square position 13 strides across the initiatively conversion that moves up and down the rotating that has just realized power output shaft 17 of the axle head of square position axle 27.5. middle square position 13 strides across the initiatively process of square position axle head protruding 49: when middle square position 13 up arrival initiatively during square position axle heads convexity 49; Oil hydraulic cylinder 36 pressure releases; This kind stepless speed variator is in idling conditions; Axle head protruding 49 continues to advance 13 beginnings of middle square position along the active square position; Square position 13 was together with middle square position movable frame 25 outer moving in the middle of initiatively square position axle head protruding 49 pushed simultaneously; The fixing passive square position 4 and passive square position 9 distances of sliding are increased, and the passive square position 9 of sliding dwindles with oil hydraulic cylinder fixed tray 20 distances.6. in passive square position 9 special cases one of sliding, to stride across initiatively the square position axle head protruding 49 the time when middle square position 13, oil hydraulic cylinder 36 pressure releases, and square position 13 outer moving in the middle of protruding 49 extruding of square position axle head initiatively, extruding pressurizing block 37 promotes oil hydraulic cylinder movable disk 38 outer moving; After middle square position 13 strode across active square position axle head protruding 49, moved inwards hydraulic drive oil hydraulic cylinder movable disk 38, pressurizing block 37 and the passive square position 9 of sliding.7. in active square position frame 2 special cases one, square position frame 2 special cases two and initiatively in frame 2 special cases three of square position initiatively; To stride across initiatively the square position axle head protruding 49 the time when middle square position 13; Oil hydraulic cylinder 36 pressure releases, initiatively move square position 13 in the middle of protruding 49 extruding of square position axle head, and also pushing initiatively, square position frame 2 moves.8. in active square position axle special case two, owing to there not being initiatively square position axle head convexity 49, when flat 13 dishes in centre strode across the axle head of active square position axle 27, middle square position movable frame 25 did not move, and the passive square position 9 of sliding is also mobile.9. in governing system structure special case one; The speed ratio Principles of Regulation: regulating shaft 31 drives adjusting gear 32 and rotates; Adjusting gear 32 drives regulates 51 rotations of axle sleeve gear wheel; Regulating axle sleeve gear wheel 51 drive adjusting axle sleeves 54 rotates with adjusting axle sleeve pinion 52; Regulating axle sleeve 54 rotates by regulating axle sleeve sliding pin 55 drive adjusting axle sleeve sliding pinions 53; Regulate axle sleeve pinion 52 and regulate leading screw 8 rotations by square position in the middle of 12 drives of middle square position adjusting gear with adjusting axle sleeve sliding pinion 53; Middle square position is regulated leading screw 8 and is driven middle square position adjusting nut 6 upstream or downstream; Square position bearing 58 moved up and down in the middle of middle square position adjusting nut 6 drove by adjusting nut angle, middle square position 34; Square position 13 moved up and down in the middle of middle square position bearing 58 also drove; Because speed ratio is to be determined with the ratio that contacts circular diameter of active square position 3 and middle square position 13 by the circular diameter that contacts of fixing passive square position 4 or slide passive square position 9 and middle square position 13; Therefore square position 13 moves up and down the variation that has realized above-mentioned contact circular diameter in the middle of; Also just realize the variation of speed ratio, reached the purpose of regulating speed ratio.
Claims (3)
1. the invention provides a kind of stepless speed variator; It comprises: housing; Active square position frame; Power input gear; Power input shaft; Power output gear; Pto; The oil hydraulic cylinder fixed tray; Hydraulic circuit; Middle square position movable frame; Active square position gear; Active square position mandrel; Middle carrier gear; Adjusting axle; Adjusting gear; Regulate gear ring; Oil hydraulic cylinder; It is characterized in that: it has initiatively square position; Fixing passive square position; The passive square position of sliding; Middle square position; Active square position axle; Initiatively the square position axle is in the gear center hole of active square position; Rotate with active square position gear and to cooperate; Also can be through the bearing cooperation that rotates; Initiatively the square position gear is fixedly connected with the active square position; It also can be one; Initiatively the square position is the boundary with active square position axle; Be divided into the first half of active square position and the Lower Half of active square position; Under the situation of active square position sense of rotation unanimity; Pto direction of rotation when the pto sense of rotation when middle square position contacts with the first half of active square position contacts with the Lower Half of active square position with middle square position, therefore middle square position strides across the initiatively conversion that moves up and down the clockwise and anticlockwise that has just realized pto of the axle head of square position axle.
2. stepless speed variator according to claim 1 is characterized in that: it has middle square position axle, middle square position adjusting nut, middle square position adjusting leading screw, middle square position adjusting gear.
3. stepless speed variator according to claim 1; It is characterized in that: in speed control system structure special case one: middle square position adjusting gear is in the axle base of middle square position; Regulating leading screw with middle square position is fixedly connected; And with regulate the axle sleeve small gear and regulate the axle sleeve sliding pinion and cooperate; Regulate axle sleeve and drive the rotation of adjusting axle sleeve sliding pinion; Regulating the axle sleeve gearwheel can be one with regulating the axle sleeve small gear; And all be fixedly connected with the adjusting axle sleeve; Regulate the axle sleeve gearwheel and cooperate with adjusting gear, adjusting axle is enclosed within the axle base of middle square position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102468450A CN102345715A (en) | 2010-08-06 | 2010-08-06 | Stepless speed changer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102468450A CN102345715A (en) | 2010-08-06 | 2010-08-06 | Stepless speed changer |
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| Publication Number | Publication Date |
|---|---|
| CN102345715A true CN102345715A (en) | 2012-02-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102468450A Pending CN102345715A (en) | 2010-08-06 | 2010-08-06 | Stepless speed changer |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104214301A (en) * | 2014-02-24 | 2014-12-17 | 谭波 | Continuously variable transmission |
| CN104214297A (en) * | 2014-02-24 | 2014-12-17 | 谭波 | Flat driving disk speed regulation type CVT (continuously variable transmission) |
| WO2015124035A1 (en) * | 2014-02-24 | 2015-08-27 | 谭波 | Stepless transmission at speed-regulating screw side |
-
2010
- 2010-08-06 CN CN2010102468450A patent/CN102345715A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104214301A (en) * | 2014-02-24 | 2014-12-17 | 谭波 | Continuously variable transmission |
| CN104214297A (en) * | 2014-02-24 | 2014-12-17 | 谭波 | Flat driving disk speed regulation type CVT (continuously variable transmission) |
| WO2015124034A1 (en) * | 2014-02-24 | 2015-08-27 | 谭波 | Driving flat plate speed-regulating-type stepless transmission |
| WO2015124035A1 (en) * | 2014-02-24 | 2015-08-27 | 谭波 | Stepless transmission at speed-regulating screw side |
| CN104214297B (en) * | 2014-02-24 | 2017-02-15 | 谭波 | Flat driving disk speed regulation type CVT (continuously variable transmission) |
| CN104279291B (en) * | 2014-02-24 | 2017-03-29 | 谭波 | Speed governing leading screw side buncher |
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Application publication date: 20120208 |