SU1344910A1 - Bed for dynamic and static testing of power support - Google Patents

Abstract

The invention relates to means for testing mining equipment, in particular mechanized roof supports. The goal is to test equipment under dynamic and static loading conditions. The stand includes 3 columns 1 and 2 installed on the base. On the striker 7, located between columns 1, 2, are installed (L

Description

Sions 10 and 11. The latter are connected respectively with levers 12 and 13. When dynamically loading with hydraulic cylinders, the striker 7 with torsions 10 and 11 and levers 12 and 13 is fed up until it comes into contact with the overlap 4. Levers 12 and 13, interact with rollers 5 and 6, allow to accumulate

The invention relates to the mining industry, namely to the extraction of minerals by means of mining equipment, including mechanized roof supports.

The purpose of the invention is to test equipment under dynamic and static loading conditions.

Figure 1 presents the proposed stand, front view; figure 2 - view aa in figure 1 | on fig.Z - view BB on fng.1.

The stand consists of columns 1 and 2

(Fig. 1), rigidly mounted on the base 3, on top of the column 1 and 2 are rigidly connected by a crossbar 4, on the ends of which rollers 5 and 6 are mounted, between columns 1 and 2 a striker 7 is loosely mounted, on which the shoes 8 and 9, connecting the latter with columns 1 and 2. Torsion bars 10 and 11 are also mounted on the striker 7, connected respectively to levers 12 and 13, which interact with the crossbar 4. On the base 3, hydraulic cylinders 14 and 15 are pivotally connected also by another end with clamps 16 and 17, in which grooves 18 and 19 are made, mutually operating with striker 7, cam guides 20 and 21 mounted on columns 1 and 2, and side springs 22 and 23 with the possibility of charging torsions 10 and 11 and making a strike by striker 7 on the test object on rolls 1 and 2 are installed shock absorbers 24 and 25 to limit departure of the striker 7.

The stand works as follows. Scheme with dynamic loading of test objects,

energy on the torsions 10 and 11. On the columns 1, 2, there are cam yugzies and springs located on the side of the x sides of the striker 7 with the ability to interact with the torsions 10, 11. To limit the release of the striker 7, there are "shock absorbers 24 and 25. 3 silt

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five

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Hydraulic cylinders 14 and 15, 7 with torsions 10 and 11 and levers 12 and

13 is brought upwards until the levers 12 and 13 touch the crossbar 4, the levers 12 and 13, interacting with the rollers 5 and 6, allow energy to be accumulated on the torsions 10 and 11. At the same time, the grippers 16 and 17 interact with the cam-shaped guides 20 and 21 until the striker 7 disengages from the notches 18 and 19 of the grippers

16 and 17, Boeks 7, under the action of charged torsions 10 and 11 and its own weight, slipping on columns 1 and 2, strikes the test object.

Static Test Scheme.

The pedestal 7, slippage on columns 1 and 2, under the action of the hydraulic cylinders 14 and 15 and its own weight is fed down to the contact by the test object, after which the striker 7 carries out static loading of the object using the same hydraulic cylinders 14 and 15, if the test object has significant dimensions on hydraulic cylinders

14 and 15, extension cords (not shown) are provided.

Such an embodiment of the stand provides all-sided testing of mining engineering objects and their elements in dynamic or static modes, allows testing of various load applications without changing the stand design, as well as using the stand for dynamic testing of other engineering products.

Claims (1)

Invention Formula Stand for dynamic and static tests of mechanized roof supports, rigidly connected to the overlap, grips installed with the ability to interact with the striker, displacement hydraulic heads, with one ends hingedly connected to the grippers, springs and shock absorbers, different from the fact that, in order to test equipment under dynamic conditions and static loading, it is equipped with torsions mounted on the striker, levers, one end soybeans with torsions, and other interacting with overlapping, on the ends of which are rollers, cam-shaped guides mounted on the columns, while the shock absorbers are installed in the holes made in the columns with the possibility of movement, the other ends of the hydraulic cylinders of movement are hinged on the base, and the springs located on the sides of the striker with the ability to interact with torsions. but jigd Editor I. Segl Nick Compiled by V.Ponomareva Tehred L. Oliynyk Proofreader L. Pilipenko Order 4898/33 Circulation 452Subscription VNSHSHI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Production and printing company, Uzhgorod, Projecto st., 4