SU1372398A1 - Switching device - Google Patents

Abstract

The invention relates to electrical engineering and allows the distribution of electrical signals sequentially across several predetermined programs that are interchangeable remotely. | J5% 4 P wfr. The goal is to extend the functionality. The device contains frame 1, microswitches 5, adjusting screws 6, drive shaft II with engine 12. At one end of the frame axis 3 is fixed with levers 4. One arm of each lever acts on the corresponding microswitch and rests on the adjusting screw. At the other end of the frame is installed the second axis 8 with a set of software cams. Under the action of springs 7, a frame mounted on trunnions takes a position in which one of the software cams pr S (L

Description

presses against the roller attached to the end of the pusher 14, as well as to the drive shaft 11. The pusher 1A is fixed in t 15, installed with the possibility of reciprocating motion. At the other end of the pusher, a second roller is fastened, which is inserted into the sinusoidal groove of the guide bar 18. To change the programs, the control mechanism moves the pulley 15, which

It acts on the pusher 14, which performs a complex movement along the axis of the groove 17 of the guide bar, and retracts the roller from the cam and the drive shaft. Under the action of the springs, the frame shoulder rests on the stop 20, T ha stops the pusher in one of the working positions selected using the control mechanism, and the development of the new program begins. 1 il.

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The invention relates to an electrical technique and can be used to output electrical signals sequentially through several predetermined programs, with the program being changed remotely.

The aim of the invention is to expand the functionality.

The drawing schematically shows a switching device.

The switching device contains a frame 1 installed in the housing 2 on the pins. At one end of frame 1, axis 3 is fixed with levers 4. One arm of each lever 4 acts on microswitch 5 and rests on screw 6 for adjustment. The other arm of each lever 4 is connected by a spring 7 to the housing 2. At the opposite end of the frame 1, an axis 8 is fixed to a set of software cams 9, one of which is pressed by the springs 7 to the roller 10 and the drive shaft I1 with the engine 12 and the support 13 The roller 10 is fixed at the end of the pusher 14 mounted in the bar 15 with the possibility of reciprocating movement. At the other end of the pusher 14, a roller 16 is fixed, inserted into the sigusoidal groove 17 of the guide bar 18. T ha 15 is installed in the control mechanism 19 with the possibility of reciprocating motion. The stop 20 serves to limit the rotation of frame 1 when changing programs.

The adjusting screws 6, microswitches 5, stop 20,; motor 12, shaft support 13 and control mechanism 19 with guide bar 18 are fixed in housing 2,

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The switching device operates as follows.

When the cam rotates, the frame 1 rotates around the trunnions, while the bolts 4 rotate relative to the point of contact with the screws 6 and under the action of the springs 7 press the drive elements of the microswitches 5. Change the position of the screws, you can adjust the timing of the microswitches 5 according to the angle of rotation of the cam 9.

When changing programs, the ha 15 under the action of the control mechanism 19 moves the pusher 14, which performs a complex movement along the axis of the groove 17, moving the roller 10 away from the cam 9 and the drive shaft 1 1. In this case, the shoulder of frame 1 rests on the stop 20, and the heel 15 stops the pusher 14 with the roller 10 in one of the working positions selected by means of the control mechanism 19.

The roller 10, inserted between the drive shaft 1I and the software cam 9, begins to rotate and sets frame 1 in motion. Thus, the switching device starts to work out the newly selected program.

The use of a switching device allows remote program change. The absence of mechanical input elements, the autonomy of the switching device due to the electrical connection with the operator, allow the creation of a series of switching devices in a sealed design capable of operating in

Viyah high humidity and corrosive environments.

A switching device equipped with a reversible drive motor is also capable of reacting to the polarity of the supplied signal and, depending on this, changing the sequence of program processing.

Claims (1)

Invention Formula A switching device comprising a housing, microswitches, adjusting screws, a frame, spring-loaded levers mounted on an axis that can interact with microswitches and resting on adjusting screws, a software cam connected through a roller with a frame, at one end of which is fixed the axis that carries Spring-loaded levers, characterized in that, in order to expand the functionality, it is equipped with a drive shaft, additional software cams, another axis and a shift mechanism microswitch switching programs that include a guide bar with a sinusoidal groove, a pull and a pusher with a roller on one end of all software cams, are mounted on another axis, which is fixed on the other end of the frame, while the pull is fixed on the pusher with the possibility of returning the translational movement through the roller fixed to this tag and located in the indicated sinusoidal groove of the guide bar, and the first roller fixed to the other end of the pusher and has the ability to interact with the drive shaft and one of the software cams.