RU8377U1 - PNEUMATIC SHOCK DEVICE - Google Patents

Abstract

Pneumatic impact device, including a hollow body, a hammer placed in the body with the possibility of reciprocating movement, a system of channels for intake and exhaust of air from the working chambers of the device, an air distributor installed in one end of the body, an air supply tube fixed at one end to the other end of the body , the second - entering the through hole of the hammer, characterized in that the air supply tube is installed in the housing through an elastic element and is equipped with a transition sleeve, measured at h part entering the cavity of the drummer, by means of an elastic element.

Description

Pneumatic Impact

The proposed utility model relates to the field of construction equipment and relates to devices for trenchless laying and replacement of pipelines.

Known pneumatic percussion device described in patent EP O 356 666, containing a hollow body, a drummer installed therein and an air supply tube, fitted with one youth in the body, and the other vjiapHHiw.

HeiiociviTKOM device nvlya (-: tesya ideznost1. () ОУ, L.Ь

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G.K .. the pipe fastening is o (for: transferring tai tie b ... and ilHX percussion iiarpycoiu with iriaieceHiiM uda drummer ksr11us m;:,; etc. birdcages can destroy the tube; because of these prosperities Ejection of pipes in the drummer, etc. .. if-iiJOTo device.

P1 is known Tc1 as well as a pneumatic device described in patent Tf: RF 2063328, a hollow body, a drummer located in it, a channel system for supplying and exhausting B1:) air inlet, air distribution

 i AIR TUBE. NDOSATCOM. like RiJinporFHt TT;

him, is the lack of reliability of the device due to the lack of VIA means to reduce the stiffness of the products supplied to the center - and the shock distributor, and the possibility of a technical problem solved by the utility model is to increase the reliability of the device.

The problem is solved in that in a pneumatic shock device, including a hollow body, a drummer placed in the body with the possibility of reciprocating motion, a system of channels for intake and exhaust of air from workers Ksher device, air diffuser, installed 11bvl | 1nsh-in one end of the body , the air supply tube /, fixed at one end in the other end of the housing, the second entering the through hole of the hammer, this air supply tube is installed in the elastic element and equipped with a transition th sleeve, | 1aamearn to and part of entering into the cavity of the striker nosredstvsyak elastic element.

This will ensure the absorption by the elastic element yjtaipftOH of the load transferred from the housing to the air supply tube, and, -, “b i

:; there is the possibility of self-installation of the 1st JUG:. of the air supply tube, not necessarily the drummer .;

The field model is illustrated by + drawing.

The pneumatic impact device comprises a housing 1, a drummer 2 is arranged in the housing with the possibility of reciprocating movement, forming with the housing 1 a working 3 of the shock reverse: a. Drummer 2 in1: -1 is filled with an axial cavity 4 and radial windows 5. In the axial cavity 4 of the drummer 2 there is a large stage of the air distributor 7, the lower stage of which is fixed in the rear end of the housing 1. At the rear end of the housing 1 there are exhaust windows 8. In the hammer 2 a through hole 9 is made. A through hole 10 is made in the front of the housing 1. The device is equipped with a tube 11, one end of which IS is fixed through an elastic element 13 in the through axial hole 10 of the housing 1 with the possibility of its connection to the air supply master whether 14. The other end 15 of the tube; 11 is provided with a sleeve 16 mounted on it with an elastic element 17 and inserted into the through hole 9 2 with the possibility of their relative reciprocating movement. To the highest step of the step air diffuser 7, the plug 18 is uni-connected.

On the unnecessary surface of the housing 1 in its front part, a conical surface 19 | is made for fixing the nozzles necessary for performing individual work.

The device operates as follows.

The energy carrier, for example, compressed air, through the supply line 14, through the radial windows: 5 enters the working chamber 3 of the reverse stroke of the striker 2. Due to the difference in the area of the working Kshera 3 and the cavity 4, the striking force 2 acts backward. 2 starts to move back. In this case, the radial windows 5 of the striker 2 are blocked by a large stage of the air distributor 7 and the flow of compressed air into the working chamber 3 is stopped. Further movement of the 2 airscrews occurs due to the work of expanding compressed air in the working chamber 3 And, for example, a shocker - Through the radial window 5 in and the exhaust okay 8- in. Coriube 1 air is exhausted from chamber 3 in atmosphere. The pressure in the chamber 3 drops to atmospheric. Under the action of compressed air in the axial cavity 4 2, the latter is inhibited and begins to move 1T. forward, HaifocH hit the body of the device. In this position, the radial windows 5 hit 1-ha 2, noshed. the edge of the larger stage of the air distributor /, connect the L) a6o4yro chamber - with the cavity 4 of the hammer 2 and the cycle repeats. When the device is loaded, the loads, which are not infrequent when struck by the striker 2 to the housing 1, are absorbed by the elastic element 13 and are not transmitted to the air supply pipe P. The presence on the air supply pipe 10 of the elastic element 17 and the adapter sleeve 16 facilitates its self-installation relative to the drummer 2 due to the deformation of the elastic element 17.

Due to the presence of elastic elements that provide shielding of the impact of shock ns-loads on the air desalination system, and a self-aligning air supply tube, the reliability of the operation of the device significantly increases.

Claims (1)

Pneumatic impact device, including a hollow body, a hammer placed in the body with the possibility of reciprocating movement, a system of channels for intake and exhaust of air from the working chambers of the device, an air distributor installed in one end of the body, an air supply tube fixed at one end to the other end of the body , the second - entering the through hole of the striker, characterized in that the air supply tube is installed in the housing through an elastic element and is equipped with a transition sleeve, measured at h part entering the cavity of the drummer, by means of an elastic element.