SU277350A1 - ATHIC COPER FOR IMPACT TESTS - Google Patents

Description

Pneumatic impact machines for impact tests are known, containing a test sample with a test specimen, a shock tube with a striker rigid with it and a pressure chamber fixed to the impact tube.

The proposed pneumatic pile driver differs from the known ones in that its high pressure chamber is equipped with an internal valve. the piston and mounted on the valve TSODV1IZHNO relative to the rod of the power cylinder, bearing the rod with the piston: it, p.rek) digging the inlet opening of the high pressure chamber. This increases the impact speed of the striker.

In the drawing, a shvmat.ic.C | and the described pneumatic Koneip is shown.

It contains a chamber / s placed in not .. test sample 2, a test tube 3 rigidly connected with it, a striker 4 and a high pressure chamber 5 fixed to the pipe. Chamber 5 is equipped with a shutter located inside and outside, vyuoleininom in the form of a claping 6, blocking the inlet opening of the pipe, with h .. n, but not, m 7, having lateral slots and carrying

at the end of the piston 8, and mounted on the valve movably relative to the rod 7 of the power cylinder 9, carrying the brush 10 with the piston.

Koper works as follows.

In the camera / place the sample. A compressed gas of slight pressure is fed through a hole in the piston prostrate L. In this case: by: rschchen // with stem 10 and cylinder-indrom 9 with valve 6 pairs. Place, valve will block hole a, and piston 11 - hole b. Then, compressed high-pressure gas is supplied through hole g to cavity B of chamber 5. After filling the cavity B, the driver is ready for operation.

For accomplishment; and a blow through the hole d serves compressed gas, which raises the piston // and rushes into cavity B, accelerating to high speed the piston // with the rod and cylinders. Then the compressed gas penetrates (through the slits of the rod 7) into the cylinder's icing. Under the action of a sharply increased pressure in the cylinder, the clack is abruptly opened, and the gas noses out, cutting the hole a into the shock tube. This causes the acceleration of the striker and the impact of the latter with the sample.

a test specimen rigidly connected with it, a striking tube with a striker and reinforced on a shock pressure tube, a high-pressure KaMeipy, characterized in that, in order to increase the impact speed of the striker, the high-pressure supply chamber on the shutter, located in the inside, made in vnde klalana, blocking the entrance hole of the ud: pnoy

pipes, with a stem screwed on it, having more than half of them and having one end of the cylinder, and mounted on the valve underneath the shaft of the power cylinder, carrying another rod with a lorshey, which intersects the inlet port of the high-pressure chamber.