RU13219U1 - PNEUMATIC SHOCK DEVICE - Google Patents

Abstract

Pneumatic impact device, comprising a housing, a striker, a two-stage air distributor, characterized in that it is equipped with a two-stage sleeve mounted on a lower stage of the air distributor by means of a spring, while the smaller stage of the air distributor is made two-stage with through transverse channels in its stages and provided with a transverse partition between the transverse channels.

Description

Pneumatic impact device

The proposed half-sown model relates to the field of construction and relates to devices for well formation, trenchless laying and pipelines.

Known non-pneumatic shock device described in AS USSR 977614, comprising a housing, a hammer, an air distributor with a start valve installed in its larger stage.

The disadvantage of the device is its low reliability, due to the fact that when the air pressure in the luianaH network decreases during operation of the device, it closes and the machine stalls.

Ta1a: e is a pneumatic device described in A.S. USSR 924276, comprising a housing, a hammer, a two-stage air distributor installed in a lower stage of the air distributor, a spring-loaded trigger valve.

The disadvantage of the device Tc; 1 is also low reliability due to the unstable operation of the device when the operating pressure in the supply network changes.

The technical problem solved by the utility model is to increase the reliability of the device.

The problem is solved in that the pneumatic shock device, comprising a housing, a striker, a two-stage air distributor, is equipped with a two-stage sleeve installed on the lower stage of the air distributor by means of a spring, while the lower stage of the air distributor is made two-stage with through channels in its stages and is supplied; 1: transverse septum between the transverse channel; A1U1I. This will ensure reliable operation with pressure drops in the network.

The utility model is illustrated in drawing 1 w.

Figure 1 shows the device in section;

In Fig. E - part of the device ao Burden of work.

The pneumatic shock device contains i: opnyc 1, in i-bOpnyce it is razmesh, en with the possibility of reciprocating mixing, drummer, 2, air valve 3, two-stage bushing 4 and spring G.

The device operates as follows.

Compressed air is supplied but to the duct and through the central channel b and the transverse channel 7 of the air distributor 3 in Kaiviepy 8,

 I- / -1 r

SHG, U / iO

Ooraovovuyu sleeve 4 and the air distributor 3, the air pressure B chamber 8, depustyuim.im on the working area 9, sleeve 4, squeezing ggrulppgu 5, moves to the right. The spring force O is selected, it is compressed only when the pressure in the chamber 8, stretches the nominal - this is necessary for a reliable start of the device. KcUviephi 8 and 10 are connected, and air through the transverse channel .11 enters the channel and the working callers of device 13 and 15. Under the action of compressed air supply coming through channel 12 through o; i, ii, Hioiu the working chamber 13 and channel 14 to the front the working Kaiviepy 15 firing pin 2 will shuffle to the right (back) due to the difference between the working wheels and the front side 13 and front 15 working cameras. After that r.ai: gsanal 14 will pass through the back of a large stage 16 of the air distributor 3, air will be exhausted from the chamber 15 into the atmosphere. Drummer; 2 the air pressure in the Kaivfiepe 13 first stops, and then accelerates forward and strikes the front end of the housing 1. Then 11, and: l is repeated. Under the influence of udgfov 1shrnus 1 and the whole device moves in the ground, leaving behind a well formed.

In the event of pressure drop in the network and a decrease in effort, the action, wye, them on the working areas 9 and 17 of chambers 8 and 10, the sleeve 4 is held in place due to the fact that in the working position it is retained by a lower specific pressure, but acting on a large area - this is the sum of the working areas 9 and 17 of chambers 8 and 10. In this way, even when the pressure in the network is less than the nominal force created by the pressure and applied to the areas 9 and 17, it is enough that the spring 5 remains compressed, the sleeve 4 is in working polo / kenya, but the buckwheat has not stalled.

Claims (1)

Pneumatic impact device, comprising a housing, a striker, a two-stage air distributor, characterized in that it is equipped with a two-stage sleeve mounted on a lower stage of the air distributor by means of a spring, while the smaller stage of the air distributor is made two-stage with through transverse channels in its stages and provided with a transverse partition between the transverse channels.