SU29577A1 - End switch - Google Patents

Description

The terminal switch according to the invention is intended to periodically automatically change the direction of rotation of various types of machines and engines, for example, by switching a knife switch, transferring a belt, etc.

In FIG. 1 shows an axial section of the switch; FIG. 2 and 3 - its separate parts.

The switch consists of three disks I, 2, 3 (Fig. 1), mounted on shaft 4, OR BEING a continuation of the working shaft, or in some way connected with it. For example, if the working shaft is of a sufficiently large diameter, then the shaft 4 can be screwed into it with ONE end up to the stop 8 and secured with studs 16. Of these three discs, the DISK 7 is connected to the shaft 4 tightly, the DISK 2 is mounted freely or directly onto the shaft 4 or on the auxiliary sleeve 5, and the DISK 3 is fixed on the shaft 4 by retaining screws 11. The mutual arrangement of the discs in assembled form is shown in FIG. one; FIG. 2 shows the TYPE of the disc 2 on the left and FIG. 3 is a left-side view of the disk 3. In the disk 7 there is a spiral groove, the number of turns of which is selected depending on the number of revolutions of the working shaft during the period of time by the end of which the switch must come into action.

(31)

The disk 2 has a radial slot in which the slider Yu moves, having on the side adjacent to the disk 7 protrusions entering the hollows of the spiral groove, and from the disk side a 3-protruding tooth slightly narrower than the width of the groove. The disk 3 also has a radial slot provided with adjustable stops 9 and 13. The stop 9 is fixed in any place of the slot. The stop 13 always remains at the bottom or in any of the holes 21. The number of THESE holes may be, for example, ten (Fig. 3).

In the groove of the disk 2 there is a ha (cable), connected to a drive, for example, with a handle of a knife switch. The connection can be OR directly or through block 20.

The adjustment of the device is as follows. The slider 10 is set to the lowest position and the shaft 4 is rotated, for example, in a clockwise direction. The slider 10 with the corresponding direction of the spiral groove in the disk / will move upwards and at the end of the required period of time will occupy a certain position at a certain distance from the center. Then the shaft 4 stops and the stop 9 is fixed in the slot of the disk 3 against the protrusion of the slider Yu, to the stop 13 in the close;;.,.,. . , - 2; the shallowest hole 21 coming against the lower end of the slot in the disk 2. Thus, with a subsequent change in the direction of rotation of the shaft 4, the disk rotating with it / will move the JO slider down to its underlying projection with an emphasis 13, after which together with the shaft 4, the disk 2 will also rotate. The disk 2, being associated with, for example, the knob of the motor switch, will move this latter so that the shaft will begin to rotate again clockwise. A new switching of the engine, and, consequently, a reversal of its rotation to the reverse, will be made automatically upon contact of the slider 10 with the stop 9, which carries the disk 2 and with it the switch to the other side. The subject matter of the invention. Termination switch, characterized by the application of tightly nasa. a disk driven on the shaft of the machine; and, on the side, a spiral groove designed, when the disk rotates, to radially move the slide 10 along the notch in the disk 2, which is freely mounted on the machine shaft and connected to the switching mechanism 20 actuated when gripping the slider 10 one of the adjustable stops 9 or 13, mounted on the disk 3, fixed in turn in the corresponding position on the shaft 4 with the help of locking screws 11.