SU150328A1 - Synchronizer to cam clutch - Google Patents

Description

Synchronizers are known for cam clutches that transmit rotation from the leading to the driven shaft, in which servo pistons are applied, acting through the springs, on the movable cam half coupling and on the friction rings of the drive shaft, clamping the friction element of the driven shaft.

The disadvantage of these synchronizers is the impossibility of providing them with the shock-free activation of the cam clutch.

The proposed synchronizer does not have this drawback. This is achieved by the fact that the cam half coupling is rigidly connected to a ring having slanted depressions on the inside into which, when synchronized, the coupling half enters the axial movement of the ring that was limited to that hinged on the shaft connected to the driven shaft.

FIG. 1 schematically shows a cam clutch with a synchronizer in section; “And FIG. 2 is the same, in section along A-A in FIG. one.

The drive shaft 1 rotates in the direction indicated by the arrow, the friction rings 2 move along the splines. The compression ring 4 moves along the splines of the driven shaft 3. When moving the servo motor piston 5 to the left, the spring 6 compresses springs 7 and S. 9 compresses the friction rings 2 and 4, which causes the rotation of the shaft 3. At the same time, the spring 8 tends to push the cams W sitting on the shaft 1 to the cams 11 sitting on the shaft 3.

A gear 12 is mounted on the shaft 3, kinematically coupled through gears 13 and 14 with: gear 15, free-running shaft and rotating in the same direction as shaft 5. The gear ratio between the above gears is adjusted so that

No. 150328- 2 gear 15 rotated somewhat faster than shaft 3. At the same time, the gear ratio., -:,.

The following is related: none / will be equal to: i t;

where n is the shaft revolutions /, and D “is the difference in the revolutions of the shafts / and with the switching on of the cams 10 and 11.

When the revolutions of the shaft 3 become less than the revolutions of the shaft Y by an amount greater than Hell, the revolutions of the gear 15 are also lower than the revolutions of the shaft 1; when the shaft 3 lags behind the shaft / by the value of D, then the gear 15 rotates with the same ones. turns that And shaft 1; when the shaft 3 lags behind the shaft / by an amount less than A ″, gear 75 is ahead of shaft 1. In this case, a mutual reverse occurs between gear 15 and 1 shaft 1. Together with gear 15, the hooks 16 rotate, which, under the action of the tension spring 17 and the centrifugal oils, are pressed against the stop 18 of the gear 15. In the disk 19 connected to the cam disc 10, there are notches in which the hooks 16 can fall. 15 from the shaft 1 of the hooks 16, sliding against the surfaces of the disk 19, preventing it from moving to the left. When gear 15 of shaft 1 advances, the hooks / 5 are pressed on the surface 2 (into the inside of the disk / P, after which, under the action of 8, the disk 19 moves to the left and the joints of the cams 10 and // are connected.

As the servomotor piston 5 moves to the right, the clutch is turned off and the friction rings 2 and 4 are separated, the cams 10 and 11, and the disk 19 becomes in front of the hooks 16.

Subject invention

The synchronizer to the cam coupling, transmitting the rotation from the drive shaft to the driven shaft, using a servo piston acting through the springs on the movable cam p-ring coupling and on the friction rings of the drive shaft clamping the friction element of the driven shaft, from the driver and so that, in order to provide without a cam clutch, the movable cam half coupling is rigidly connected to a ring having on its inside two depressions, which, during synchronization of rotation of the half coupling, are limited axially. ltsa hooks pivotally fortified on the pinion kinematically associated with the driven shaft.

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