SU1602782A1 - Apparatus for automatic controlling of means for enhancing cross-country capacity of wheeled vehicles - Google Patents

Abstract

The invention relates to tractor and automobile construction, mainly to machines with a classical wheel arrangement, equipped as a means of raising the permeability by a semi-tracked drive, installed with a gap relative to the surface of solid ground. The purpose of the invention is to increase efficiency. The automatic control device for raising the permeability of wheeled vehicles contains semi-tracked ribbons covering the drive and tensioning gears, the drive wheels being coaxial with the drive wheels of the machine and smaller in diameter. New in the device is the installation between the drive wheels of the machine and the cogwheels of the half-track drive driven clutches, as well as the driving wheel slip and rotation frequency sensors of the wired wheels connected by outputs through threshold elements to the logic element I with controlled couplings. 1 il.

Description

The invention relates to tractor and automobile industry, mainly to machines with a classic wheel arrangement, equipped as a means of increasing the permeability of a semi-tracked drive, installed with a gap relative to the surface of solid ground.

The purpose of the invention is to increase the efficiency of the device.

The drawing shows the block diagram of the proposed device for one side of the machine.

The device comprises a drive wheel 1, a sensor 2 rotational speed of the drive wheel connected to the input of the comparison element 3, a driven wheel 4, a sensor 5 of the rotational speed of the driven wheel connected to the second input of the comparison element. The output of the reference element is connected to the input of a threshold element 6 having adjustable on and off thresholds. The output of the threshold element is connected in turn with the input of the logical AND 7 element, the output of which through the amplifier 8 is connected to a controllable clutch 9. In addition, the drive wheel 10 of the half-track drive, the sensor 11 of the rotation speed of the drive wheel and the threshold element 12 enter the device, connected with the input of the sensor 11, and the output with the logic element 7. The electronic components of the device are combined into a control unit 13 located in the driver's cabin.

The device works as follows.

The signals from sensors 2 and 5 are fed to the threshold element 6. If the level

05 Oh

to

00

go

signal exceeds a predetermined switching threshold, the output of element 6 appears normalized electric signal

(log. "1) and fed to the input of the AND logic circuit (element 7). To the second input of the circuit, And a signal comes from the sensor 11 of the rotational speed of the drive wheel 10 of the half-track drive, normalized by the threshold element 12. If there is a signal circuit And (element 7) is T-107, power amplifier 8 is a logic element T-405. The on and off thresholds of the element 6 are set by potentiometers, the handles of which are displayed on the front panel of the control unit 13 and are provided with position indicators.

In case of need (when testing, setting up, in special cases of work)

driver

Claims (1)

Invention Formula yUi UtJbl M .aJICIviCriivjivi i. iipri I tu 1 (1 II ZH.ZH v, .. iiu .. - - / I On the two inputs of the I circuit and on its on and off output, the 1 and 10 half-track signal also appears on the signal from the console, amplified in power by the amplifier 8 and fed to the electromechanical coupling 9, which rigidly connects the drive wheel of the ma- chine shchina with a cog-wheel semi-tracked drive. Switching off the clutch pro- | 5 comes when the drive wheel slip signal drops below the off threshold set on the threshold element 6. The off threshold is set below the on threshold. The difference between them (chooses an automatic control device for increasing the permeability of wheeled vehicles made in the form of tracked thrusters containing sensors for slipping the drive wheels of the machine, the threshold element for setting the slipping and control of the dead zone) movers, while the stroke did not lead to its immediate slipping sensor; its output is connected to a shutdown, caused by a decrease in the beech-to-threshold element connected by its owing to the operation of the semi-semi-output itself through an amplifier with controlled This way, in order not to cause 25 couplings of tracked thrusters, it is characteristic of self-oscillations that, in order to increase efficiency, it is equipped with sensors of rotational speed of the drive wheels of the tracked thrusters, the second threshold element is the speed limiter signal In a specific implementation of the device, three-phase can be used as sensors 2, 5 and 11 of the rotation frequency. , t П rl 71 IVl Л at I and lILyillTl Ilx-ii uij j-- -. Ji h -.j. . . -. - r- -----. TI tachogenerators D1MM, D2MM, TE204 and others. 30 of these wheels and a logical element And, with with bridge diode rectifiers on the output. Element 3 Comparison - adder on resistors. The logical part of the circuit can be performed on the elements of the industrial frequency sensor for the rotation of the drive wheels of the tracked propellers with its output connected to the second threshold element, and the AND logical element is connected by inputs to the first and second threshold elements. UD1 D DDlIl JJl PS pa pa j., Yi4, n ic.n. ii v / iTiuii-uvi t OK ..- ....., Noy automation "Logic-T. The threshold elements are 35 elements, and the output through the amplifier - cops 6 and 12 - elements T-202, logs with controllable couplings. The C-circuit (element 7) is a T-107, the power amplifier 8 is a logical element T-405. The on and off thresholds of the element 6 are set by potentiometers, the handles of which are displayed on the front panel of the control unit 13 and are provided with position indicators. In case of need (when testing, setting up, in special cases of work) iiu .. - - / I  turn on and off the half-track on the signal from the console driver  made half-legs Invention Formula switching on and in progress turn on and off the half-track on the signal from the console The device for automatic control of means for raising the permeability of wheel gears, made in the form of tracked propellers, contains sensors for slipping the drive wheels of the machine, a threshold element — master of slipping and control of the clutch for activating the drive for additional tracked propulders, of these wheels and the logical element And, with In this case, the rotational speed sensor of the drive wheels of the tracked propulsive devices is connected to the second threshold element with its output, and the logical element I is connected by inputs with the first and second threshold elements. OK ..- .....