The planetary mechanism of regulation of the variator

 

(57) Abstract:

The inventive planetary mechanism of regulation of the variator contains two identical planetary series with common epicycles, a sun gear which is connected with one drive shaft, the other with the adjustment mechanism. Drove one row is connected to the housing, took second row - Autonomous regulator. Each planetary series contains one satellite with two toothed crowns. The axis of rotation of the carrier and the satellite are offset and are apart from each other at a distance smaller than the radius of the smaller of the gear rims of the satellite. 1 C.p. f-crystals, 3 ill.

The invention relates to a mechanical transmission with a continuously variable change speed of the driven shaft and can be used in the automotive industry.

Known regulatory mechanism that allows to adjust the gear ratio without stopping the variator. The mechanism contains two planetary series with common epicycles, a sun gear which is connected with one drive shaft, the other with the adjustment mechanism. Drove one series stopped, and when rotation of the pinion carrier of the second row sun gears begin to rotate relative to each other, in resultate ratio on the fly (without stop variator), however, has a complex design, a large number of parts and a large size in diameter.

The purpose of the invention is to simplify the design by reducing the number of parts and reduce the size.

This goal is achieved by the fact that in a global regulatory mechanism comprising two identical planetary series with common epicycles, a sun gear which is connected with one drive shaft, the other with a control mechanism, drove one series, United with the body, drove the second row, coupled with an Autonomous controller, each of the planetary series contains one satellite with two toothed crowns. The axis of rotation of the carrier and the satellite are offset and are apart from each other at a distance smaller than the radius of the smaller of the gear rims of the satellite. 1 where Z12,Z13the number of teeth of the satellites;

Z4the number of teeth of epicycle;

Z2the number of teeth of the sun.

The satellite contains two of the ring gear external or internal gears with different numbers of teeth.

In Fig. 1, the planetary mechanism of regulation with satellites having toothing of the internal gear, a General view of Fig.2 - the same, with stavotrans engagement.

The planetary mechanism of regulation, made with the possibility of mutual rotation of the shaft 1 and gear 2, consists of two planetary gear sets. The first planetary series contains the sun gear 3, is rigidly connected with the shaft 1, apical 4, led 5, 6, containing two of the ring gear 7 and 8. The axis of rotation of the satellite and the carrier 5 is located at a distance that is Second planetary series contains a sun gear 2, apical 4, drove 9, stopped relative to the housing 10, sat 11, containing two of the ring gear 12 and 13. The axis of rotation of the satellite 11 and drove 9 are located at a distance that is Carrier of the first planetary series 5 has a gear 14 connected to standalone controller. The sun gear 2 is connected to the adjustment mechanism. The epitsiklov both series made in the form of gear 4, mounted free on the shaft 1. Both planetary series is the same, so the axis of rotation of satellites 6 and 11 are at the same distance from the axis of rotation of the carrier 5 and 9, and

Z7= Z12; Z8= Z13; Z2= Z3.

The regulation is due to the rotation of the carrier 5, transmitted to him through the gear from a stand-alone controller.

Equation jeep for two planetary gear sets and equations relations have in the R>
32= 0

21=22where11=3- angular velocity of rotation of the sun gear 3 of the first planetary series;

21= 27=4- angular velocity of rotation of epicycle 4, common to both planetary gear sets;

31=5- angular velocity of rotation of the carrier 5;

TO1= K2= K - parameters planetary alignments;

12=2- angular velocity of rotation of the sun gear 2;

32=9- angular velocity of rotation of the carrier 9

3=11= K21+ (1 - K )31< / BR>
2=12= K21< / BR>
The difference between the angular velocity of sun gear 2 and 3

3-2= (1 - K)31= (1 - K )5< / BR>
The mechanism (Fig.1) not working, if K = 1. Given that Z12- Z2= Z13- Z4= Z8- Z4= Z7- Z3= Z, then

K = =

K =

when K = 1

Z7(Z8Z) = Z8(Z7- Z)

Z(Z8- Z7) = 0

This is possible if the axis of rotation of the satellite and carrier are the same (Z = 0) or sprockets satellite with internal gearing is the same.

The mechanism (Fig.2) not working, if K = 1

K = =

When you consider that

Z2- Z12= Z4- Zperhaps if the axis of rotation of the satellite and carrier are the same (Z = 0) or sprockets satellite with external toothing of the same.

The mechanism (Fig.3) not working, if K = 1

K = =

When you consider that

Z2- Z12= Z13- Z4= Z8- Z4=

= Z3- Z7= Z, then K = 1 if Z8+ Z7) = 0

This is possible if the axis of rotation of the satellite and carrier are the same ( Z = 0).

1. The PLANETARY MECHANISM of REGULATION of the VARIATOR, containing situated in the body two identical planetary series with common epicycles, a sun gear which is connected one with the drive shaft, the other with the adjustment mechanism, drove one row is connected to the housing, took second row - Autonomous regulator, characterized in that, to simplify the design by reducing the number of parts of the mechanism and reduce the overall dimensions of the variator, each planetary series contains one satellite with two toothed crowns, the axis of rotation of the carrier and the satellite are eccentric offset and are one with respect to another at a distance, a smaller radius of one of the smaller toothed crowns of the satellite, while

1,

where Z12and Z13- olnechnoi gear.

2. The mechanism under item 1, characterized in that the satellite contains two of the ring gear external and/or internal gears with different numbers of teeth.

 

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