SU1656249A1 - Torque rectifier for impulse mechanisms - Google Patents

Abstract

The invention relates to mechanical engineering. In order to reduce the radial dimensions of the rectifier of the moment of the pulsed mechanism when the alternating torque acts on the input shaft 2, the self-braking direction of the satellites 10 is chosen so that when the input shaft 2 is rotated clockwise, the satellite 10 has a self-braking vehicle with a gear wheel 5, resulting in an input 2 and output shaft 3 is held together and also rotated by the hour hand. In this case, the power closure of the gears is provided by levers 6, earrings 12 and additional levers 11. When the input shaft 2 rotates counterclockwise, the satellites 10 rotate in their supports and release, resulting in the input 2 and output 3 shafts being separated and idling during cyclic changes in the direction of rotation of the input shaft 2, the output shaft 3 performs a unidirectional movement. The presence of additional levers 11c by the satellites 10 mounted on them ensures the force closure of the gears with smaller radial forces pressing the satellites 10 to the gear wheel 5, which allows reducing the radial dimensions of the torque converter. 2 Il.

Description

The invention relates to mechanical engineering and can be used in pulsed transmissions to convert alternating torque into a constant sign, i.e. as a recruiter of the moment.

The purpose of the invention is to reduce the radial dimensions.

FIG. Figure 1 shows the kinematic diagram of the moment rectifier; figure 2 - the same, front view.

The rectifier of the moment of the pulse mechanism includes a housing 1, in which the input 2 and output 3 shafts are coaxial with each other.

On the shaft 3, the carrier 4 is mounted for rotation and a gear wheel 5 is fixed. Levers 6 are pivotally connected to the planet carrier 4 and the other ends are connected to the shaft 2 pivotally with the possibility of radial movement, for example, by means of fingers 7 and sliders 8. placed in rails 9. bonded to the input shaft 2.

The satellites 10 are self-braking in one of the directions of engagement with the gear wheel 5 and are mounted in the supports on the additional levers 11. which are connected pivotally to the planet carrier 4.

Earrings 12 at their ends are connected pivotally with levers 6 and 11. Elastic elec

ate about

Yu

4 o

the cops 13 are connected with a carrier 4 and levers

11. The stops 14 are mounted on the carrier 4 and are positioned so that when they are in contact with the additional levers 11 in engagement of the satellites 10 and the gear wheel 5 there is a side gap.

The rectifier of the moment works as follows.

An alternating torque acts on the input shaft 2 from a pulsed mechanism (not shown), under the action of which the shaft 2 oscillates

When the input shaft 2 is rotated, for example, clockwise, the levers 6 and the carrier 4 turn also clockwise. The external resistance moment on the output shaft 3 and the gear wheel 5 is directed in the opposite (counterclockwise) direction, therefore the satellites 10 tend to turn clockwise in their supports.

The self-braking direction of the satellites 10 is chosen so that when rotated clockwise, they self-brake with the gear wheel 5. As a result, the input 2 and output 3 shafts are fastened together and rotate clockwise. In this case, leverage b, interact with earrings

12. Turn the additional levers 11 counterclockwise and the latter squeeze the satellites 10 to the gear wheel 5, providing a force closure of their gears, as a result of which the torque is transmitted from the input 2 and the output shaft 3 and the working moment of the rectifier is made.

When the input shaft 2 is rotated counterclockwise, the levers 6 and the carrier 4 turn also counterclockwise. The gear 5 rotates clockwise, so the satellites 10 rotate counterclockwise in their supports and brake against the gear 5, with the result that the input 2 and output 3 shafts are separated from each other. In this case, the torque is not transmitted to the output shaft 3, and it rotates clockwise by inertia and idling is performed.

Levers b, interacting with the earrings 12, turn the additional levers 11 clockwise. At the contact of the levers 11 With the stop 14, the satellites 10 are pressed against the gear wheel 5 and gaps are formed in their gears, which reduces friction losses in the idling gears.

At the next rotation of the input shaft 2 clockwise, the levers 6 and drove 4

0

five

0

also rotate clockwise, satellite satellites 10 with a gear wheel 5, torque is transmitted to the output shaft 3 and the work cycle of the rectifier is repeated, with a full cycle of work in the output shaft 3 passing it performs a unidirectional movement, and the elastic elements 13 provide a sample of the gaps.

When transmitting torque in gears of satellites 10c with gear wheel 5, radial forces arise, under the action of which satellites 10 tend to move away from gear wheel 5. Therefore, to ensure forceful closing of gears, oppositely directed forces should be applied to the satellites (Figure 1), defined expressions

FT P,

aj

34

(one)

five

0

five

from about 311 + 32 + 33 1-2 - P2 - az

32 34

where Fi, F2 - force pressing the satellite 10 to the gear wheel 5 in the prototype and the proposed device;

Pi, P2 forces acting from the input shaft 2 on the slider 8 and the lever 6, in the prototype and the proposed device;

ai, an is the distance from the slider 8 to the axis of rotation of the lever 11 in the prototype and the proposed device;

32, az, 34 - lengths (shoulders) of levers 6 and 11.

From figure 1 also follows

R.- t r-2I

A + ai P

P2

m

m

G2

And +311 where M is the transmitted torque;

A is the center-to-center distance of the satellites 10 and the gear wheel 5;

P. G2 - radial dimensions of the prototype and this momentum rectifier.

In view of expression 2, expression 1 will take the form

Fi

M. H A + ai 34

(3)

F2.

M

311 + 32 + 33

32 34

A + 311ez

With the same parmetreh gearings satellites and gears, therefore, from the expression 3 follows

 32

A + au

au + 32 + az

(four)

an

from where

- aJ. (A Э2 (A + а G) - a i az

Putting, for example, in the expression 4 ai A, 32 0 25 А. er; 0.3 A we get au 0.125 A Ti A + ai.

 , 125A-1.125A, i.e. the radial envelope of the moment rectifier is 2: 1.125-1.78 times smaller.

Thus, in the proposed torque rectifier, a significant reduction in the radial dimensions is provided.

Claims (1)

Invention Formula The rectifier of the moment of the pulse mechanism, comprising a case of input and output shafts, mounted on the latter with the possibility of rotation of the carrier and secured five a gear mounted on it, satellites designed for interacting with satellites with self-braking in one of the directions hook-shadow levers, one ends of which are connected to the input shaft pivotally with the possibility of radial movements. and the other ends are pivotally connected to the planet carrier, and elastic elements , connected by some ends with a carrier, characterized in that, in order to reduce the radial dimensions, it is equipped with earrings, additional levers, one ends of which are pivotally connected to the carrier, and others - by means of earrings harnessed in zana with the main levers and connected to other ends of the elastic elements, and the satellites are installed on additional levers FIG. one eight /four