SU732719A1

SU732719A1 - Arrangement for studying the towing of track vehicle

Info

Publication number: SU732719A1
Application number: SU782609953A
Authority: SU
Inventors: Борис Николаевич Пинигин; Леонид Петрович Мурзин
Original assignee: Челябинский политехнический институт им. Ленинского комсомола
Priority date: 1978-05-03
Filing date: 1978-05-03
Publication date: 1980-05-05

Description

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Изобретение относитс к транспортному машиностроению, преимущественно к производству и испытанию гусеничных транспортных средств.The invention relates to a transport engineering, primarily to the manufacture and testing of tracked vehicles.

Известно устройство дл испытаний гусеничной машины, у которого динамометри- s ческа тележка прицепл етс к гусеничному транспортному средству, а замер величины буксовани испытуемого транспортного средства осуществл етс отдельным устройством в частности, по записи количества траков, перематываемых гусеницей на мерном участ- ° ке пути, а по разности теоретического и действительного пути определ етс величина буксовани 1.It is known a device for testing a tracked vehicle, in which a dynamometric carriage clings to a tracked vehicle, and the slippage value of the test vehicle is measured by a separate device, in particular, by recording the number of tracks rewinding by the caterpillar on the measuring section of the track, and by the difference between the theoretical and actual paths, the magnitude of the slip 1 is determined.

Недостатком известного устройства вл етс его сложность и необходимость применени дополнительных механизмов дл определени буксовани , не обеспечивающих достаточной точности.A disadvantage of the known device is its complexity and the need to use additional mechanisms to determine the slip, which do not provide sufficient accuracy.

Известно также устройство дл исследовани буксовани гусеничного транспорт- 20 ного средства, содержащее двигательную установку с трансмиссией, трос нагружающего устройства и измерительную аппараУРУ 2.It is also known a device for investigating the slipping of a tracked vehicle, comprising a propulsion system with a transmission, a cable for loading the device and a measuring apparatus 2.

Однако и это устройство не обеспечивает достаточной точности измерений, так как замер осуществл етс в промежутке концевых участков и без изменени величины нагружени в процессе эксплуатации.However, this device does not provide sufficient measurement accuracy, since the measurement is carried out in the gap between the end sections and without changing the load value during operation.

Целью изобретени вл етс повыщение точности замера величины буксовани .The aim of the invention is to improve the accuracy of measuring the amount of slipping.

Цель достигаетс тем, что устройство снабжено индукционным датчиком частоты вращени , установленным на трансмиссии, и концевыми выключател ми дл замера величины перемещени троса от начала до конца эксперимента, причем датчик частоты вращени и концевые выключатели соединены с измерительной аппаратурой, кроме того, измерительна аппаратура может состо ть из усилительно-коммутационного блока со счетчиком импульсов, соединенного с датчиком частоты вращени , и электросекундомера , соединенного через усилительно-коммутационный блок с концевыми выключател ми и счетчиком импульсов.The goal is achieved by the fact that the device is equipped with an induction speed sensor mounted on the transmission, and limit switches for measuring the amount of cable movement from the beginning to the end of the experiment, the rotational speed sensor and limit switches are connected to the measuring equipment, moreover, the measuring equipment can An amplifying switching unit with a pulse counter connected to the rotational speed sensor and an electric stopwatch connected via an amplifying switching unit k with limit switches and pulse counter.

На чертеже показано предлагаемое уст ройство, общий вид.The drawing shows the proposed device, a general view.

Claims

With the hook 1 of the tracked vehicle is connected the cable 2 loading device 3, which is made in the form of a system of blocks with the calibration weight. On the cable loading device 3 is fixed cam 4, which turns on and off the limit switches 5 and 6, the beginning and end of the actual path S of the experiment. Switches 5 and 6 are connected to the amplifier-switching unit 7, and through it to the electronic counter 8 pulses and the electrosecond 9. The inductive sensor 10, mounted against the fingers of the elastic coupling 11 of the transmission, is connected to the pulse counter 8 with the pulse counter 8. The device works as follows. When the caterpillar vehicle moves at the moment of contacting the cam 4 with the limit switch 5, the movement of the fingers of the coupling 11 relative to the induction sensor 10 starts to be detected by the counter pulse 8 and the experiment time is simultaneously recorded by the electric seconds 9. When the crawler tractor passes the actual path Sj, the value of which is mainly limited by the height of lifting the calibrated load of the loading device 3, the cam 4 through the limit switch 6 disconnect It records the number of pulses and the time of the experiment. According to the indications of the counter 8 pulses and the electro stopwatch 9, you know the actual path traveled by the machine and determined by the number of pulses in the path Sj. without slipping, it is possible to determine the slipping amount of 8 .1000 / o, where (is the diameter of the initial circle of the leading sprocket); her - pulse counter readings; i gear ratio from coupling to drive sprocket. consequently, the speed of the VT (t is the electrosecond meter readings). The accuracy of the measurement by the proposed method is better, the greater the number of pulses from the coupling on the same segment of the path. By varying the load of the loading device, it is possible to change the amount of slipping in almost any value from 0 to lOiOVo. This device, along with an increase in the accuracy of measuring the amount of slipping, also makes it possible to compare the amount of slipping with the actual movement speed. Claim 1. A device for investigating the slipping of a tracked vehicle, comprising a propulsion unit with a transmission, a loading cable and measuring equipment, characterized in that, in order to improve the accuracy of measuring the slipping, it is equipped with an induction speed sensor mounted on the transmission, and limit switches for aamer the amount of cable movement from the beginning to the end of the experiment, with the rotation sensor and limit switches connected to the measuring equipment. 2. The device according to claim 1, characterized in that the measuring apparatus consists of an amplifying-switching unit with a pulse counter connected to a rotational speed sensor, and an electric stopwatch connected through an amplifying switch unit with limit switches and a pulse counter. A source of information taken into account in the examination 1. USSR author's certificate number 196403, cl. G 01 M 17/00, 1966.

2. USSR author's certificate number 548778, cl. G 01 M 17/00, 1973 (prototype).

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