CN106641142A

CN106641142A - Stepless speed changer

Info

Publication number: CN106641142A
Application number: CN201611052542.9A
Authority: CN
Inventors: 张怀
Original assignee: Huainan City Land Environmental Protection Technology Co Ltd
Current assignee: Huainan City Land Environmental Protection Technology Co Ltd
Priority date: 2016-11-25
Filing date: 2016-11-25
Publication date: 2017-05-10

Abstract

The invention provides a stepless speed changer. The speed changer is characterized by comprising a power input mechanism, a speed changing mechanism and a power output mechanism. A pushing disk 8 of the power input mechanism presses tightly a left conical disk 22 and a right conical disk 17 of the speed changing mechanism in a coordinated manner. Through changing a contact position between a conical disk 8, a left conical disk 22 and a right conical disk 17, the speed can be changed. A power output conical gear 21 of the power output mechanism meshes with both a left conical gear 24 and a right conical gear 15 simultaneously. The torsional force generated by the left conical disk 22 and the right conical disk 17 are collected to achieve the power output. Compared with the prior art, the stepless speed changer has the advantages that the speed changer is a gearless structure, the operation is smoother, a higher rotation speed is bearable, the steel belt structure of the CVT stepless speed changer is canceled, the structure is simpler, and the cost is reduced.

Description

A kind of buncher

Technical field

A kind of buncher of the present invention, is related to mechanical speed change transmission field, more particularly to suitable for the electrodeless change of automobile Fast device.

Background technology

Automobile has become the main means of transport of the world today now, and speed changer be on automobile one it is very important Parts, mainly there is in the market 3 kinds of speed changers, and the first is classical manual gear speed changer, and second is automatic tooth Wheel speed, the third is CVT, bores disk steel band type speed changer.Lifted along with people's living standard and the meaning to environmental protection Know and improve, the requirement to vehicle also tends to more comfortable and energy-conservation, also more and more with automatic transmission, how to allow and become automatically The cost of fast device is lower, more comfortable and energy-conservation, is the technical background of the present invention.

The content of the invention

The present invention relates to a kind of buncher, including three parts, power input assembly, speed cone disc assembly, and it is dynamic Power exports assembly.

Wherein power input assembly by：Input shaft 1, input shaft outer bearing 2, input shaft hydraulic cylinder valve 3, input shaft hydraulic pressure Inner casing 4, input shaft inner bearing 5, input shaft hydraulic pressure outer shell 6, input shaft thrust bearing 7, push-plate 8 are constituted.

Power is input into total part fit system：Input shaft 1 is connected with engine power output shaft；Input shaft 1 is by defeated Enter axle outer bearing 2 and input shaft inner bearing 5 is fixed；Axle 1 is consolidated by input shaft outer bearing 2 and input shaft inner bearing 5 with gearbox Fixed assembling；Push-plate 8 and the spline connection of input shaft 1；There is input shaft thrust bearing 7 to match somebody with somebody between push-plate 8 and input shaft hydraulic pressure inner casing 4 Close；The shell of input shaft hydraulic pressure outer shell 7 is fixedly connected with gearbox；The conical surface of push-plate 8 is compressed with left cone disk 22 and right cone disk 17 Coordinate.

Speed cone disc assembly by：Right variable-speed shaft 13, right variable-speed shaft outer bearing 14, right hydraulic cylinder valve 10, right hydraulic pressure inner casing 11st, right variable-speed shaft inner bearing 12, right hydraulic pressure outer shell 9, right variable-speed shaft thrust bearing 16, right cone disk 17, right bevel gear 15；Left speed change Axle 26, left variable-speed shaft outer bearing 25, left hydraulic cylinder valve 28, left hydraulic pressure inner casing 27, left variable-speed shaft inner bearing 30, left hydraulic pressure outer shell 29th, left variable-speed shaft thrust bearing 23, left cone disk 22, left angular wheel 24 are constituted.

Each part fit system of speed changing assembly：Right variable-speed shaft 13 is by right variable-speed shaft inner bearing 12 and right variable-speed shaft outer bearing 14 fix, and right variable-speed shaft inner bearing 12 and right variable-speed shaft outer bearing 14 match somebody with somebody fixation with gearbox；Right axle bevel gear 15 and output shaft Bevel gear 21 engages；Right cone disk 17 and the spline fitted of right variable-speed shaft 13；There is right thrust in the middle of right cone disk 17 and right hydraulic pressure inner casing 11 Bearing 16 coordinates；Right hydraulic pressure outer shell 9 is fixed with gearbox；Right bevel gear 15 is fixedly connected with right variable-speed shaft 13；It is right cone disk 17 with The compression fit of push-plate 8.

Wherein left variable-speed shaft 26 is fixed by left variable-speed shaft inner bearing 30 and left variable-speed shaft outer bearing 25, left variable-speed shaft inner bearing 30 and left variable-speed shaft outer bearing 25 fix with gearbox；Left angular wheel 24 is engaged with output shaft bevel gears 21；It is left cone disk 22 with The spline fitted of left variable-speed shaft 26；There is left thrust bearing 23 to coordinate in the middle of left cone disk 22 and left hydraulic pressure inner casing 11；Left hydraulic pressure outer shell 29 Fix with gearbox；Left angular wheel 24 is fixedly connected with left variable-speed shaft 26；Left cone disk 22 and the compression fit of push-plate 8.

Power output assembly by：It is power output shaft 20, power output shaft bevel gears 21, power output shaft outer bearing 19, dynamic Power output shaft inner bearing 18 is constituted.

The wherein each part fit system of power output assembly：Power output shaft 20, by power output shaft outer bearing 19 and dynamic Power output shaft inner bearing 18 is fixed；Power output shaft outer bearing 19 and power output shaft inner bearing 18 are fixed on gearbox；Power Output shaft bevel gears 21 are fixedly connected with power output shaft 20；Power output shaft bevel gears 21 and left angular wheel 24 and right bevel gear 15 engagements coordinate；Power output shaft 20 connects vehicular transmission shaft.

A kind of buncher of the present invention has the beneficial effect that compared with existing buncher：（1）The present invention is gearless Structure, operating is more smoothed out, and can bear higher rotating speed.（2）The steel band structure of traditional CVT speed changers is eliminated, its structure is more Simply, cost is lower.

Description of the drawings

The structural profile schematic diagram of Fig. 1, the present invention.

Each part position structure chart when Fig. 2, low speed of the present invention.

Each part position drive mechanism figure when Fig. 3, low speed of the present invention（Hiding hydraulic system）.

Each part position structure chart when Fig. 4, high speed of the present invention.

Each part position drive mechanism figure when Fig. 5, high speed of the present invention（Hiding hydraulic system）.

Accompanying drawing 1 marks explanation：Input shaft 1, input shaft outer bearing 2, input shaft hydraulic cylinder valve 3, input shaft hydraulic pressure inner casing 4th, input shaft inner bearing 5, input shaft hydraulic pressure outer shell 6, input shaft thrust bearing 7, push-plate 8, right hydraulic pressure outer shell 9, right hydraulic pressure cylinder valve Door 10, right hydraulic pressure inner casing 11, right variable-speed shaft inner bearing 12, right variable-speed shaft 13, right variable-speed shaft outer bearing 14, right bevel gear 15, the right side Variable-speed shaft thrust bearing 16, it is right cone disk 17, power output shaft inner bearing 18, power output shaft outer bearing 19, power output shaft 20, Power output shaft bevel gears 21, left cone disk 22, left variable-speed shaft thrust bearing 23, left angular wheel 24, left variable-speed shaft outer bearing 25, a left side Variable-speed shaft 26, left hydraulic pressure inner casing 27, left hydraulic cylinder valve 28, left hydraulic pressure outer shell 29, left variable-speed shaft inner bearing 30.

Specific embodiment

As shown in Fig. 2 well-behaved invention each design of part figure in starting or low speed, is driven specific embodiment：When starting After machine starts, hydraulic oil pump work is driven, oil pump is the hydraulic cylinder of input shaft, left hydraulic cylinder and right hydraulic cylinder provide pressure, is pushed away Disk 8 is pressed in the outermost of left cone disk 22 and right cone disk 17, and hydraulic cylinder provides pressure, push-plate 8 is pressed and left cone disk 22 and right cone disk 17 mutual compression fits；Engine power is input to power input shaft 1, drives power input shaft 1 to rotate, the band of power input shaft 1 Dynamic push-plate 8 rotates, and push-plate 8 drives left cone disk 22 and right cone disk 17 to rotate respectively, and left cone disk 22 and right cone disk 17 drive respectively a left side Variable-speed shaft 26 and right variable-speed shaft 13 rotate, and left variable-speed shaft 26 and right variable-speed shaft 13 then drive respectively left angular wheel 24 and right bevel gear 15 rotations, left angular wheel 24 and right bevel gear 15 drive power output shaft bevel gear 21 to rotate, and power output shaft bevel gears 21 drive Power output shaft 20 rotates, the connection vehicular transmission shaft of power output shaft 20, outputs power.

As shown in Figure 4, each part position structure chart during high speed of the present invention, speed changer improves the embodiment of speed：Work as car Carry computer detection to vehicle need speed changer improve speed when, vehicle-mounted computer send " increase fuel feeding " instruction, give control input axle Hydraulic cylinder valve 3, valve 3 increases hydraulic oil supply, and input shaft cylinder pressure increase, input shaft hydraulic pressure inner casing 4 promotes input Axle thrust bearing 7 and push-plate 8, bore to the left the center position movement of disk 22 and right cone disk 17；Left and right hydraulic cylinder is automatic constant hydraulic fluid Cylinder pressure, when push-plate 8 bores to the left disk 22 and right cone disk 17 center position is moved, left cone disk 22 and right cone disk 17 are displaced outwardly, this When left and right hydraulic cylinder pressure increase, now left hydraulic cylinder valve 28 and the pressure release of right hydraulic cylinder valve 10 are to setting value；Work as push-plate 8 bore to the left disk 22 and when right cone disk 17 center position is moved, and push-plate 8 progressively contracts with the contact radius of left cone disk 22 and right cone disk 17 Little, its fast ratio is incrementally increased, so as to realize the raising of speed, transmission.

As shown in Figure 2, when transmission reduction, vehicle-mounted computer transmission " reduction fuel feeding " is instructed gives control input axle hydraulic cylinder Valve 3, valve 3 reduces hydraulic oil supply, and push-plate 8 is produced to make a concerted effort to be displaced outwardly by left cone disk 22 and right cone disk 17；It is left Cone disk 22 and right cone disk 17 are moved inward, and the pressure of left and right hydraulic cylinder reduces, now left hydraulic cylinder valve 28 and right hydraulic cylinder Valve 10 is pressurized to setting value；Push-plate 8 is displaced outwardly, and incrementally increases with the contact radius of left cone disk 22 and right cone disk 17, its speed Than progressively reducing, so as to realize the reduction of speed, transmission.

When vehicle stops or engine stop works, the position of push-plate 8 is in left cone disk 22 and the outermost of right cone disk 17 Start next time ready.

Claims

1. a kind of buncher, it is characterised in that including power input mechanism, gear and power take-off mechanism, power is defeated Enter the push-plate 8 of mechanism, with the left cone disk 22 of gear and the right cone compression fit of disk 17, disk 22 is bored with left by changing push-plate 8 And the contact position between right cone disk 17, realizing speed change, the power output bevel gear 21 of power take-off mechanism engages left cone simultaneously Gear 24 and right bevel gear 15, by the torsion that left cone disk 22 and right cone disk 17 are produced power output is collected and is realized.

2. told according to claim 1, a kind of push-plate 8 of buncher power input mechanism drives left cone disk 22 and right cone disk 17 do mutual rolling movement.

3. told according to claim 1, a kind of buncher its gear shift mode is, by change push-plate 8 and left cone disk 22 and Contact position between right cone disk 17 realizes speed change.

4. told there is left thrust bearing between a kind of left hydraulic pressure inner casing 27 of buncher and left cone disk 22 according to claim 1 23, it is capable of achieving left cone disk 22 and rotates, left hydraulic pressure inner casing 27 does not rotate.

5. told there is right thrust bearing between a kind of right hydraulic pressure inner casing 11 of buncher and right cone disk 17 according to claim 1 16, it is capable of achieving right cone disk 17 and rotates, right hydraulic pressure inner casing 11 does not rotate.

6. told according to claim 1, dynamic input between a kind of buncher push-plate 8 and power input hydraulic inner casing 4 Thrust bearing 7, is capable of achieving push-plate 8 and rotates, and power input shaft hydraulic pressure inner casing 4 does not rotate.

7. told according to claim 1, a kind of buncher is left to bore disk 22 and the spline connection of left variable-speed shaft 26, left cone disk 22 There is circular groove at center, and groove is used to cover left angular wheel 24, saves the space of speed changer.

8. told according to claim 1, a kind of buncher is right to bore disk 17 and the spline connection of right variable-speed shaft 13, right cone disk 17 There is circular groove at center, and groove is used to cover right bevel gear 15, saves the space of speed changer.

9. told according to claim 1, a kind of left disk 22 of boring of buncher is identical with material with the right cone size of disk 17, is band Tapered smooth metal circle wheel.

10. told according to claim 1, the power that a kind of buncher its power output shaft 20 is exported is by being left cone Disk 22 and right cone disk 17 are produced, and are engaged left angular wheel 24 by power output bevel gear 21 and are exported power with right bevel gear 15.