SU1235718A1 - Extension piece for impact machines - Google Patents

Description

one

The invention relates to hand-held percussion instruments, in particular to hammers, intended to fasten the tool to the barrel of the latter, and can be used in various industries.

The purpose of the invention is to increase the reliability of fixing the tool and reducing the level of vibration by making annular rectangular grooves interacting with elastic rings.

FIG. 1 shows a nozzle for percussion machines, a longitudinal section; in fig. 2 shows section A-A in FIG. one; in fig. 3- section BB in FIG. one; in fig. 4 — node 1 in FIG. one.

12

The nozzle for kick-action machines comprises a yoke, made in the form of a stepped sleeve 1 with a thread in the hole of the menimeni stage, placed on the inner surface of a larger stage elastic lining 2, designed to interact with the barrel 3 of the impacting machine. Elastic rings 4, alternating washers 5 and 6 with tapered ends, a pressure nut 7, having a thread, a counter thread of sleeve 1 and cooperating with the end face of the washer 6, and a working tool 8 with a shank 9. On the shank 9 of the working tool is made of rectangular annular grooves 10.

5-5

1235718

0

The sleeve 1 from the side of the larger step is made split and has lugs 11 in which screws 12 and 13 are placed. The washer 6 is made of an anti-friction material.

The nozzle works as follows. The nozzle is mounted on the barrel 3 of a percussive action and secured by crimping the elastic lining 2 by bringing the lugs 11 together with a screw 12. To prevent the destruction of the lining 2, a screw 53 limiting the lugs of the ears P. Then the working tool 8 is changed in elastic rings 4 so that the end face of the shank 9 of the working tool 8 does not touch the end of the barrel 3 of the percussion machine, and press the elastic 5 rings 4 with the pressure nut 7. Press the elastic rings 4 to deform and fill the annular grooves 10 of the shank 9 ochego tool 8 obes- nechiva reliable fastening the latter in the sleeve 1.

When the machine is working, the drummer 14 of the percussion machine hits the end of the shank 9 of the working tool 8, performed by the working process, while the elastic rings 4 extinguish the squeeze energy of the working tool 8 from the surface to be treated (not shown) in both the longitudinal and transverse directions due to the fact that the shank 9 of the working tool 8 does not have contact with naybami 5 and 6, which would transmit vibration to the sleeve 1 and further to the hands of the operator.

12.

figure 2.

fig.Z

fig a

Claims (1)

NOZZLE FOR SHOCK ACTION MACHINES, comprising a holder made in the form of a stepped sleeve having a thread in a lower stage, an elastic lining designed to interact with the machine barrel, elastic rings placed in the hole of a lower stage, alternating washers with conical ends, pressure a nut with a thread, a mating thread of the sleeve, interacting with the end face of one of the washers, and a working tool placed in elastic rings, characterized in that, in order to increase the reliability of fixing the tool and to reduce vibration, the lining is placed on the inner surface of the larger step of the sleeve, and the shank of the working tool is made with rectangular annular grooves with which the elastic rings interact. to GO SP <1 QO