SU1004803A1

SU1004803A1 - Vehicle testing track

Info

Publication number: SU1004803A1
Application number: SU813364772A
Authority: SU
Inventors: Владимир Владимирович Яцкевич; Валерий Владимирович Гуськов; Петр Васильевич Зеленый; Владимир Павлович Зарецкий; Федор Григорьевич Цветик
Original assignee: Белорусский Ордена Трудового Красного Знамени Политехнический Институт
Priority date: 1981-12-15
Filing date: 1981-12-15
Publication date: 1983-03-15

Description

(5) ТРЕК ДЛЯ ИСПЫТАНИЙ ТРАНСПОРТНЫХ СРЕДСТВ(5) TRACK FOR VEHICLE TESTS

1one

Изобретение относитс к средствам дл испытаний транспортных средств, в частности к трекам дл испытаний тракторов.The invention relates to vehicle test facilities, in particular to tracks for testing tractors.

Известен трек дл испытани транспортных средств, содержащий опорную поверхность и устройство дл удержани транспортного средства от боковых перемещений в виде кольцевой замк нутой направл ющей и взаимодействую- IQ щего с ней ролика, установленного на оси каретки, с которой жестко соединена тензобалка, св занна с кронштейном , закрепленным на раме транспортного средства .1.isA vehicle testing track is known, comprising a support surface and a device for holding the vehicle from lateral movements in the form of an annular closed guide and an interconnecting roller mounted on the axis of the carriage with which the workbench is rigidly connected to the bracket mounted on the frame of the vehicle .1.is

Недостатком этого трека вл етс то, что при проведении испытаний крутосклонных и низкоклиренсных тракторов в услови х движени по склону 20The disadvantage of this track is that when conducting tests of steep and low-ground tractors in conditions of motion along a slope of 20

необходимо устанавливать направл ющую в нужное положение на всей длине трека . Это требует дополнительных затрат времени и ручного труда, усложн ет методику проведени испытаний. Кроме того, конструкци трека с поворотной направл ющей отличаетс высокой сложностью.it is necessary to set the guide to the desired position over the entire length of the track. This requires additional time and manual labor, complicates the test procedure. In addition, the design of the track with a pivot guide is highly complex.

Цель изобретени - расширение функ циональных возможностей.The purpose of the invention is the expansion of functional capabilities.

Поставленна цель достигаетс тем, что в треке дл испытаний транспортных средств устройство дл удержани транспортного средства от боковых перемещений снабжено еще одним роликом, установленным на дополнительной оси каретки напротив упом нутого ролика и взаимодействующего с направл ющей, выполненной цилиндрической, а тензобалка и кронштейн соединены телескопически .The goal is achieved in that in the vehicle test track the device for keeping the vehicle from lateral movements is provided with one more roller mounted on an additional carriage axis opposite said roller and cooperating with a cylindrical guide, and the workbench and bracket are telescopically connected.

Claims

In addition, said axes are located in a plane perpendicular to the plane passing through the vehicle frame, and the curvature of the rolling surfaces forming them is identical to the curvature of the profile of the cylindrical guide. FIG. 1 shows a track when a steep-slope tractor is tested on it; in fig. 2 is the same when testing low-clearance (flat tractor g; Fig. 3 is a diagram of the device for holding the tractor on the supporting surface, side view; Fig. Section A-A in Fig. 3. The track contains the supporting surface 1 placed on slope, guide 2 for keeping the tractor on a trajectory, the treadmill 3 of which is cylindrical.To connect guide 2 with the tractor body and measure the lateral forces acting on the tractor, use a device consisting of two rollers 5 and 6 with treadmills 7. installed on carriage 8 and located on each side of the telescopic rod 2, the movable part of which - the strainer 9 is rigidly attached to the carriage 8, and the fixed part - the bracket 10 is rigidly attached to the tractor 4 body. The curvature of the treadmills 7 of the rollers 5 and 6 is the same as the curvature of the treadmill 3 2 and as a result of the sliding of the rollers 5 and 6 along the treadmill 3, the carriage 8 has the ability to rotate around the longitudinal axis of the guide 2 and thereby maintain the tractor on the supporting surface 1 of the slope at any position of the frame the supporting surface (skeleton stable vertically skeleton is not fully stabilized, wasps TO8 not stabilized), the tractor test track is produced as follows. The crown matte 10 with the strainer 9, the carriage 8 and the rollers 5 and 6 is attached to the body of the tractor k. The tractor, with the above-mentioned devices attached to it, is engaged with the driving unit 2 and, the treadmills 7 of the rollers 5 and 6 rest on the treadmill 3 of the guideway 2. The telescopic connection of the strainer 9 with the bracket 1 provides free rolling of the rollers 5 and 6, which excludes the tractor weight on them, and the cylindrical treadmills of the guideway 2 and the rollers 5 and 6, which ensure the free rotation of the carriage 8 around the longitudinal axis of the directional direction 2, it is possible to carry out tests of tractors with the stabilization of the frame C with the system of the skeleton stabilization, low clearance, lowland, without re-equipment of the track. In order to ensure stable movement and measure the lateral forces acting on the front and rear axles of the tractor, a device for holding the tractor is installed under the front and rear axles of the tractor. During the movement of the tractor along the track, the lateral forces acting on the tractor axles and a number of other parameters characterizing the tractor operation on the slope (torques on the wheels, wheel radii, tractor pulling force, rolling resistance, etc.) Are measured. The proposed track provides the ability to test steep and low-ground tractors on a slope with the exception of the impact of tractor creep on the accuracy of parameter measurements without re-equipping the track, reducing the time and manual labor during testing. 1. Track for vehicle testing, containing a supporting surface and a device for holding the vehicle. From lateral movements in the form of an annular closed guide and a roller interacting with it, mounted on the axis of the carriage, with which the strainer bar is rigidly connected a bracket mounted on the frame of the vehicle, characterized in that, in order to extend the functionality, the device for holding the vehicle from lateral movements is provided one more roller mounted on the supplement of the 1-carriage axis of the carriage opposite to the said roller and interacting with a cylindrical guide, and the strainer and the bracket are telescopically connected.

2. The track according to claim 1, so that the said axes are located in a plane perpendicular to the plane passing through the frame of the vehicle, and the curvature of the rolling surfaces forming them is identical to the curvature of the profile of the cylindrical direction . Sources of information taken into account during the examination 1. USSR Author's Certificate No. 832390, cl. G 01 M17/00, 1979 (prototype),