SU1283707A1 - Servo electric drive - Google Patents

Abstract

The invention relates to automatic control systems and an automated electric drive with an extended control range. The aim of the invention is to expand the scope by increasing the range of speed control. The device consists of a setpoint of input and process signals, a controller, a power amplifier, an electric motor, a power reducer, an object, speed and position sensors, a switch, three couplings, amplifiers and gearboxes. The essence of the invention is to expand the range of speed control of an electric motor with one electric motor due to the coordinated inclusion of three reduction stages. As a result, optimal conditions for the operation of the electric drive on the main modes - supply of the working body, feed, measurement are provided. 1 il.

Description

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1283707

The invention relates to automatic control systems and can be used in the following electric drives of machines, industrial robots and other equipment requiring speed control.

The aim of the invention is to expand the scope by increasing the range of adjustment.

The drawing shows a structural diagram of the drive.

The following electric drive contains an input and process signals setting device 1, a controller 2, a power amplifier 3, an electric motor 4, a power reduction gear 5, an object 6, a speed sensor 7, a position sensor 8, a switch 9, a first 10, a second 11 and a third 12 coupling, the first 13, the second 14. and the third 15 amplifiers and the first 16, 20 torah 17 and the third 18 reducers.

The input and technological signals setpoint 1 is designed to form the signal of the interchange setting input to the controller 2, and the process signal to change the operating modes of the electric drive that is connected to the input of the switch 9. This device is intended to implement three basic operating modes of the equipment: the mode of transport movement characterized with a high speed of movement of the executive body of the mode of performing technological operations characterized by a low speed of movement, perform an organ (e.g., welding, assembly, etc.) and a control measurement mode requiring ultra-low speeds of movement of the actuator.

Unit 1 executes the functions of the programmer coordinating the time sequence of alternation of the signals for setting the displacement and changing the operating modes of the device, dictated by the essence of the particular process being realized 1.

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create a universal device. “Thus, the first 16, second 17, and third 18 reducers have the appropriate reduction factors to ensure that the speed control range is increased to the desired value.

The following electric drive works as follows.

The input of the regulator 2 from the setpoint 1 is given a signal that the system should track. Depending on the technological command, the coded signals of one of the couplings 10-12 are supplied to the input of the switch 9. Depending on the mode of operation, the follow-up electric drive provides a change in the range of adjustment of the rate of testing the output coordinate of the object 6. Moreover, the calculation of the feedback coefficients of the electric drive is carried out in order to ensure optimal dynamic performance when switching on the gearbox with maximum

gear ratio.

Formula of invention

A trailing electric drive containing series-connected input and process signal adjusters, a regulator, a power amplifier, an electric motor and a speed sensor, the output of which is connected to

the second input of the regulator, as well as series-connected power reducer, the object and the position sensor, the code of which is connected to the third input of the regulator, is also distinguished by the fact that, in order to widen the application area by increasing the range of regulation, additionally introduced a switch, three amplifiers, three couplings and

three gearboxes, the output shafts of which are mechanically connected to the input of the power gearbox, the output of the electric motor through the first, second and third couplings

connected in accordance with the inputs In accordance with the three listed first, second and third reductant operating modes of the equipment and in the presence of an electric drive with a speed control range (M10 thousand) 5 do not provide the required speed control range (and 500 thousand), the introduction of three speed steps allows you to eliminate this amount and

The main control input of the input and technological signals is connected to the input of the switch, each of the three outputs of which is respectively J5 through the first, second and

The third amplifier is connected to the control inputs of the first, second, and third couplings, respectively.

Claims (1)

Claim A servo drive containing a serially connected input and process signal setter, a regulator, a power amplifier, an electric motor and a speed sensor, the output of which is connected to the second input of the regulator, as well as a series-connected power reducer, an object and a position sensor, the output of which is connected to the third input of the regulator, characterized in that in order to expand the scope by increasing the regulation range, a switch, three amplifiers, three couplings and three gearbox, the output shafts of which are mechanically connected to the input of the power gearbox, the motor output through the first, second and third couplings is connected respectively to the inputs of the first, second and third gears, the control output of the input and process signal setter is connected to the input of the switch, each of the three outputs of which respectively through the first, second and third amplifiers connected to the control inputs of the first, second and third couplings, respectively. Editor M. Bandura Compiled by G. Nefedov Tehred M. Khodanich Corrector 0. Meadow Order 7439/45 Circulation 862 Subscription VNIIIPI of the USSR State Committee for Inventions and Discoveries 1 13035, Moscow, Ж- ^ 35, Raushskaya nab., D. 4/5 Production and printing company, Uzhhorod, st. Project, 4