SU1670465A1 - Stand for vibration testing at environmental influence - Google Patents

Abstract

This invention relates to a vibration test technique. The purpose of the invention is to simplify the design of the stand. The stand contains an exciter 1 mounted on its table supporting structure 2 for a thermal chamber 3, made in the form of a ball, the latter being connected through two pairs of rotation mechanisms arranged along two horizontal mutually perpendicular axes around which the thermal barrier can rotate. The turning mechanisms are made in the form of helical differential drives 11 with quill holes 4, the response slots 5 for which are made in a pair of three mutually perpendicular axes in the thermo-chamber. The fixture 7 for fastening the test article 6 is rigidly connected with the thermo-chamber and the connections to the armature thermo-chamber are to create the test conditions, they are located in the thermocamera housing in a single line, and at any periorientation of the thermocamera these places are located above supporting structure 2. Rotation of the thermocamera wasp it exists without depressurization; the rotation mechanisms do not fit inside the thermal pressure chamber 3, therefore no special input devices, such as bellows, are required. 2 hp f-ly, 2 ill.

Description

The invention is washed to the vibration test technique, and to the test when exposed to environmental conditions.

The purpose of the invention is to simplify the design of the stand.

FIG. 1 shows the VGRT, a general view: in FIG. 2 - view A in FIG. 1

The stand for vibration testing contains a vibratory exciter 1, a supporting structure 2 for a thermal chamber 3 made in the form of a ball mounted on this foot, and the connection of the supporting structure 2 with a thermal barrier 3 carried out through 2 conical quills 4 installed on the structure, which are included in the corresponding they have nests 5 made in the case of thermobarokramr 3 there are six such nests and they are located 11 in pairs along three mutually perpendicular axes

To secure the test article 6, there is a device 7 that is rigidly connected to a thermal pressure chamber 3. The latter is equipped with thermal insulation 8 and in places (as fittings 9 and 10) for connecting the fittings to create test and control conditions. Moreover, fittings 9 and 10 are located on the connecting line two sockets b.

Four helical differential drives 11 are used to rotate the temobarkamera 3 relative to two mutually perpendicular horizontal axes, which are also used to provide a tight backlash-free connection between the pins 4 and the response nests 5.

In order to reduce heat transfer from the thermocamera 3 to the cutting medium (and vice versa), there is a removable additional heat insulation 12 made in the form of a soft cap filled with heat insulating material and fixed on the thermal pressure chamber 3

The stand works as follows.

Test product 6 is fixed on fixture 7. Connect product G through pipelines to fittings 10c on the inner side of thermal chamber 3. Seal thermal chamber 3 by fixing its lid on the housing. Then thermal chamber 3 is mounted on support structure 2 by inserting pins 4 into slots 5. Connecting fittings (piping) to ensure the functioning of the product to fittings 10, and fittings to create test and control conditions to fittings 9. Mount additional heat insulation 12 Set test conditions, both pechiva through valves and pipe connections 9 and 10 supply the respective components:. cryogenic gas liquids required if MnepaTypon and pressure, etc., and if necessary takf, creating a vacuum.

Pkp (lhchm) t vibration exciter 1 and conduct

 i sh tmin product 6 according to the corresponding

and and; iMMf

The peri-directional vibration of the product 6 is related to the excitation of the vibration;

i i 1 1k “) 12, take out from two nests

i put on the same axis, two quill

 5 m of her first two little donkeys are folded over the thermo-vacuum chamber 3 from i to the horizontal axis by 90 °, while

i HP participating slots 5 not installed h-npoiHB pintles taken out 4. Input

-n PI (zeros 4 in sockets 5, tighten all s), 1 quill 4. providing a backlash-free

 . connection n sockets 5 Mount i n to insulation 12 Conduct a test

; on the south ed. ed type 6 and turning h, h yo measure 3 in the same way

If tmi but the second horizontal axis,

i grptmem position thus

i f, -n - reads test 6 in three

 in x eyes without depressurization thermo-wan -pb 3 Simplify the design of walls; the absence of bellows and

Claims (3)

1 1 inward heat chamber 3 povoi ustoyyv In addition, the execution |) mpgt, zorkamer in the form of a ball most - g np | ichno for weight and size character tchg am fc taking into account its rotation), and the un i post after connecting the valve to f 1 ng arokamera 3 on the same line, which h g; located above the reference frame i 2 allows the device not to disconnect the device 1 from the test and control conditions i) orientation of the thermal pressure chamber 3. g gap thermobarok connection р1 3 with supporting structure 2 via pi - li / with differential screw m, inodlmi 11 improves transmission accuracy Readings from the vibration exciter 1 to the test and, 1zde Jul 6 The formula of the invention of the STRND for vibration testing of iion hyuzzia environment conditions, i; l) s vibration exciter, thermobaric), a supporting structure for thermal barriers. mechanisms for turning three; to fix the test subject from the product with respect to mutually perpendicular horizontal axes, with isolation, which, in order to simplify the design, has reinforced the construction for the thermal pressure chamber clamped on the table of the vibroscale / splitter for the curd around each ori: two axes of the main axis, which are mounted on the supporting structure, and the connection of the thermal chamber with the supporting structure is made through the turning mechanisms, and the fixture is attached to a thermal pressure chamber, on which there are six sockets for interfacing with the turning mechanisms arranged in pairs in three mutually perpendicular directions. 2. Stand according to claim 1, characterized in that the thermal pressure chamber is designed as a ball, and the connection points to the thermal bar The armature chamber for creating ambient conditions is located in the housing of the thermoelectric chamber along one line so that in each position of the thermoelectric chamber they are above the supporting structure. 3. Stand on PP. 1 and 2, characterized in that the mechanisms for turning are made in the form of quills with differential screw drives.