SU48045A1 - Hammer drill - Google Patents

Description

The present invention aims to replace the physical effort of the driller, pressing a hammer with a drill to the rock. In this case, it is usually necessary, simultaneously with pressing the hammer to the rock, to keep the hammer and the drill on the weight, which is the case for all types of holes (except for holes in the sole). The return of the hammer in the heart and its constant vibrating in the hands of the drillipdick makes the work of the latter extremely difficult. In order to solve the problem, the bribery of the hammer pin a with the aid of the bolt and the bolts of the cover with the piston rod, on the end of which the piston is mounted, mixed, and in the cylinder. The inlinder cavity on the hammer side communicates with the atmosphere, and the opposite is connected with a hose to the compressed air pipeline. The hammer drill with feed cylinder is mounted on the column. The use of such a device is intended to achieve the following advantages: 1.) replacing the heavy labor of a driller with an automatic device; 2) well linearity; 3) accelerate the drilling process; 4) reducing the required number of drillers, as one driller can serve up to ten of such hammers; 5) lower qualifications

drillers employed at work and 6) ease of installation of this device.

The drawing shows a general scheme of a drill hammer with a slit cylinder.

The proposed hammer drill has the following device. Instead of a cover with a handle, a hammer 2 is fastened to the body of the hammer 1 with a welded rod 3. A piston 4 is fitted with a sealing ring preventing the air from the cavity 8 into the cavity 7. The piston 4 goes in cy, 5, 5 where cavity 7 communicates freely with the atmosphere. The stroke length nopaiHH is assumed to be 500 mm, i.e., with the interval that is taken in each set for adjacent drills. The diameters are porous, and with it the cylinder for different types of hammer, can be different.

Work with the proposed hammer drill is performed as follows. Moreover, the hose 6 to which the working part of the hammer is attached is connected by means of a valve 9 to a cylinder 5. Column 8 acquires the pressure of the network and with the help of a piston and rod press the hammer and the drill accordingly, causing the latter to automatically move forward. To regulate the pressing force and to stop the latter, which is necessary when a drill is stuck or moving, valve 10 serves. By closing valve 9 and opening valve 10, it is possible to completely stop pressing.

A hammer drill with a cylinder is installed using a column, used, for example, for a Siemens-Schuckert electric drill, at any desired angle. The air flow rate of the hammer operation is a very small amount for each permutation and, in practice, may not be taken into account in the calculation.

The subject matter of the invention.

Hammer drill different

The fact that the piston rod is attached to its body is mounted on the column so that the hammer can be moved by admitting compressed air into the piston chamber.

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