RU94011895A - SHOCKING DEVICE - Google Patents

Claims (1)

The proposed device relates to mining and construction equipment and is intended for drilling wells in the ground, destroying rocks, plugging core elements into the ground, tamping the soil, and also as a hand percussion instrument. The essence of the invention is to increase the efficiency and impact energy, which is achieved by reducing the unproductive consumption of compressed air along the longitudinal channel in the drummer during the direct course of the drummer. The percussion device includes a housing 1, a drummer 2, a forward stroke chamber 3, a reverse stroke chamber 4, an exhaust system. In the longitudinal channel 8 is installed valve 9, which has the ability to move freely within the drummer. The valve seat 9 is placed on the side of the forward stroke chamber 3. Compressed air is supplied to the forward stroke chamber 3 through the opening 11 and moves the hammer 2 to the extreme forward position. Along the longitudinal channel 8, the compressed air enters the reversing chamber 4 and moves the hammer 2 to the extreme rear position. When the flap 6 is opened, compressed air is exhausted from the reversing chamber 4 to the atmosphere. Under the action of pressure in the forward stroke chamber 3, the striker rapidly moves forward and strikes the anvil 12. The inertia forces acting on the valve 9 press its stop end to the saddle and lock the longitudinal channel 8 in the impactor 2. During the reverse stroke of the impactor 2, the longitudinal channel 8 open, as the valve 9 is located on the ledge by the reverse face. In the percussion device with a central rod, the valve 9 is made in the form of a friction sleeve, which overlaps the annular gap during the direct stroke of the striker, additionally due to the friction force arising between the valve 9 and the central rod. 1 sec. and 10 h. the item of f-ly, 13 ill.