SU28691A1 - Device for transmitting the tachometer to the distance - Google Patents

Description

In a tachometer with a centrifugal balancer, a slider is connected through the contacts including one of three solenoids located at an angle vB of 120 ° to each other. The cores of the solenoids are connected by cranks to each other and, when operating, they inform the rotation of the pointer, which causes the movement of the arrow.

The drawing shows a diagram of the proposed tachometer.

The tachometer consists of a pointer and receiver. In the index part there are three solenoids Aj, Aq, Aq, the cores of which, baking cylinders with freely sliding pistons, are connected by means of cranks with a spike F eccentrically mounted on the disk E coupled to the index part of the device. Solenoids are located at an angle of 120 ° one to the other 1 "y,

The receiver is a slider contact C and a series of contacts B connected in three groups BI, Bff and BUJ, Each group is associated with one solenoid coven.

The moving part D of the tachometer is connected by a connecting rod with a slide contact.

When the tachometer is in operation, the slider contact C moves along the receiving contacts B depending on the speed of rotation of the machine or the like, the speed of which the tachometer shows only when it is connected to some other device (in this case the centrifugal balance bar) .

When slider C moves, each time the circuit closes while the slider passes through the contacts Bj, Bjj and Wsch, the circuit closes, respectively, in the solenoid AI, A, Ash, associated with the corresponding contact groups, and each time the electromagnet draws the piston core and through the crank reports the movement of the tachometer needle, which is currently judged on the number of revolutions.

The method of connecting the slider with the balance bar depends on the design of the balance bar. The number of receiving contacts B can be arbitrary, depending on the required accuracy of the tachometer.

The subject matter of the invention.

A device for transmitting a tachometer to a distance, characterized in that the movable part of the tachometer D is connected by a connecting rod with a half-zoo contact connected to one

iEOXjoeoK current lk pQt etch u il o (to periodically repeating to f i and js / ili which are connected to one of the two solenoids at 120 ° to each other, A //, the ends of which are ui 1 to 1) Arallele & but to the other pole of the source, and the cores of which, through the cranks, are connected to a spike F eccentrically mounted on the disc E, centering out with the index part of the device.