SU676779A2 - Clutch - Google Patents

Description

one

The invention relates to the field of construction and is used to couple the drive with the mechanisms.

According to the main author. St. L 549614 a clutch is known, containing a shaft with discs mounted on it, on which the ends of the axles are fixed with crackers arranged on them, interacting with the inner surface of the drum, and equipped with a hollow sprocket mounted on a shaft made with a screw, interacting with the crackers and having On the inner surface, a protrusion located in the screw groove of the shaft on which the said disks are fastened.

However, such a structure does not automatically turn on and off the clutch, depending on the speed of rotation of the drive shaft.

The purpose of the invention is to increase the reliability and smoothness of switching on the coupling.

The goal is achieved by the fact that the drum is mounted on the drive shaft with the possibility of axial movement and is equipped with a centrifugal regulator.

FIG. 1 shows a clutch, general view; in fig. 2 is a section A-A in FIG. one; in fig. 3 is a section BB in FIG. one.

The clutch consists of a leading 1 and slave 2 shafts, drum 3, which has shlitsevye

joints with shaft 1, thrust support 4, limiting from movement along their axis two disks 5, rigidly interconnected by axes 6, on which crackers 7, associated with a hollow asterisk 8, and entering at some depth in notches 9 rotate asterisks 8 (fig. 1). The latter has 10 holes in the hole, with which it enters screw groove 11 on

shaft 2. Shaft 2 is connected to the disks 5 by slit-type connections (Figs. 2 and 3), projections 12 in the holes of the disks 5 and grooves 13 on the shaft 2.

On the shaft 1 there is a centrifugal regulator connected to the drum 3 by springs 14, which are sandwiched between the flange 15 and the drum 3, and consists of centrifugal weights 16 and connecting rods 17 and 18. The clutch is operated as follows

in a way.

As the speed of rotation of shaft 1 increases, drum 3 moves along its axis of rotation towards shaft 1, as weights 16 are affected by increasing centrifugal force and through rods 18 and 17 they act on drum 3 and flange 15 of shaft I. At that, drum 3 bearings 4 presses on the disks 5 and moves them along the axis of the shaft 2. Asterisk

8 rotates relative to shaft 8

Arrow E (Fig. 2), since the fuse EXT 10 is in the groove 11, and the grooves 13 of the splined joints of the disks 5 with the shaft 2 are parallel to the axis of the shaft 2. The crackers 7 are at the ends in the notches 9, the sprockets 8, therefore they turn axis x 6, is pressed against the inner surface of the drum 3 when the shaft 1 reaches a predetermined number of revolutions, at this time providing the scene of the coupling halves. The surfaces of the crackers 7, in which they contact the inner surface of the drum 3, are the same as the surface of the drum 3 in this place, which provides a large area of adhesion of the crackers 7 to the drum 3.

The clutch is turned off when the speed of the turn of the shaft 1 decreases, when the direction of the shaft of shaft 1 corresponds to the arrow B (Fig. 2). The disengagement of the crackers and the drum does not require much effort and occurs when the centrifugal force acting on the loads 16 becomes less than the required force of pressing the crackers 7 to the drum 3. At the same time, the coupling is turned on and off with high reliability.

Claims (1)

Invention Formula Clutch clutch by bus. St. No. 549614, characterized in that, in order to increase the reliability and smoothness of switching on, the drum is mounted on the drive shaft with the possibility of axial displacement and provision with a centrifugal regulator. , AS 7 Aa 7 3 13 P