SU1260567A1 - Rig for testing telescopic hydraulic cylinders - Google Patents

Description

The invention relates to mechanical engineering and can be used as a test bench for testing multi-link gyro-cylinders.

The aim of the invention is to reduce the dimensions of the stand by testing each section separately.

FIG. 1 shows the proposed stand, side view, (section); FIG. 2 is the same, front view / FIG. 3 is a section A-A in FIG. 1; in fig. 4 is a view B in FIG. 2.

The stand contains a frame 1, a movable arm 2 with rollers 3, a telescopic hydraulic cylinder 4 under test, a loading hydraulic cylinder 5, an oil pan 6, attachment points with a screw clamp 7, a removable adjustable stop 8 located on spring-loaded stops 9 mounted on frame 1 . For clamping the stop 8 on the stoppers 9 there are plates 10 fixed to the rods 11 with thrust springs 12. In the hydroline connecting the rod cavity of the loading cylinder 5, an adjustable throttle 13 is installed. In the stop 8 you

 complete software stepped groove 14 under each of the sections of the test cylinder 4.

The stand works as follows.

The test cylinder is mounted on frame 1 and secured in the nodes with clip 7, Stop B is installed so that most of the sections of the test cylinder 4 itself passes through its step groove 14. When the working fluid is fed into the piston cavity of the cylinder 4 due to the presence of throttles 13 the exit of the larger section occurs. After testing this section, the working fluid is supplied to the rod cavity of the loading cylinder 5. After the tested section has been completely cleaned, the bracket 2 moves down the stop 8, and when it is lifted for a short time, the stop 8, released by means of spring-loaded rods 11 from the plate 10, is moved to the test position the next section of the hydraulic cylinder 4.

Reducing the dimensions of the stand reduces the material consumption of the structure.

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five

Aid.

ten

fig.Z

View5

Editor M. Kelemesh

Compiled by L. Ponev Tehred M.Hodanich

Order 5205/30 Circulation 610 Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, st. Project, 4

FIG. four

Proofreader L. Pilipenko

Claims (3)

A TEST BENCH FOR TELESCOPIC HYDRO CYLINDERS TEST, comprising parallel test and load hydraulic cylinders, a frame with hydraulic cylinder attachment units, a movable bracket mounted on the rod of the load hydraulic cylinder and equipped with a stop for the rod of the tested hydraulic cylinder, and a hydraulic control system with a load throttle, characterized in that in order to reduce the dimensions of the stand by testing each section of the hydraulic cylinder separately, the frame is equipped with spring-loaded limiters and a removable adjuster emym stop which has a stepped groove adapted to interact alternately with each section of the test cylinder. 1. ,, side view, same, front view; section AA to view B in FIG. contains the frame of FIG. 1; on the 2. 1, movable 3, test subject, on мас, oil sump mount with screw