SU98283A1 - Pneumatic pick (chipping and riveting) hammer - Google Patents

Description

Proposed pivmatnic jackhammer (riveting rivet 11) hammer

INOUND TO, AND: AND TO THE VESSEL OF MOLPTK B type

plate valve diffusion.

The peculiarity of the proposed hammer is the connection of the above-port space, which connects it to the flat clan of the air distribution system, with a cavity in the body of the stem. This obeschevastsp reduction irodnavleniya on the firing pin at idle, and, consequently, reducing air flow, and is achieved by lengthening the stroke of boGp.a

FIG. 1 and 2 are vertical; cut of the proposed hammer in two keys.

The proposed pneumatic hammer consists of 113 il11ndr | gchs; |.: Th barrel (1) with) toscals (2), striker (.}) And valve box (4) with 1.1 plate-shaped air distributor (5).

At the time of the working stroke, the striker (3), the air was bled; the channels in the handle (2) come through ;; the valve box (4), and then through the channels (o) into the supranuvial space in the body of the trunk. Iod vnep (zhody 1 air. Ud1.) I11k (3) The HiacT driver and the cat in its stroke opens (7), through which air 113 of the diffuser space (above the striker) escapes into the atmosphere. At this time, due to the overlap of the channel (8), there is a slight increase in pressure in the space of the nodes briskly in the communal channel (9).

The plate valve (5) is iodine due to the pressure in the channels (9) and due to a sharp decrease in pressure in the channels (6) is mixed; from the position shown in FIG. 2 to the position shown in FIG. one.

Compressed air begins to flow through the channels (9) of the firing pin (3) and forces the latter to move upwards.

With its upward movement, the firing pin (3) closes the exhaust ducts (7). After the TOTAL, air is compressed in the upper part of the cavity} boldly.

Due to the presence of channels (10), sos1psh10N1, their padporn space with poloetho (I) in the body of the trunk, iioin, iHie is under pressure from the bottom of the 6oiiKom, it passes Hi intensely, as is observed with conventional hammers of this type. Therefore, the braking (skidding is slower. Since the striker at the end of the reverse has still sufficient speed, then the channels (10), it begins to quickly press on the striker (Fig. 2), which contributes to the fast | 110; until it stops completely.

Before the channels overlap ((), the plate clap (5) is re-rolled from the position shown in Fig. 1 to the position shown in Fig. 2.

In the future, the cycle of work is new.

The presence of a polostp in the proposed hammer, which communicates with the adjacent valve above the piston trap, allows

lengthening the stroke without increasing the air flow

By forming c51 at the moment of blocking the channels (10), the airbag prevents strikes from striking the rear end wall of the barrel.

Subject invention

Pneumatic bumper (chipper and staller) hammer with a lamellar

FIG. one

valve air distribution. about the fact that the overhead spaced niw, which is air-distributed to the plate valve, is communicated with the cavity in the body of the trunk, with the aim of umepiigepi back pressure at idle rifle and thereby achieving less air flow, as well as lengthening the stroke.

FIG. 2

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