SU90018A1 - Pneumatic jackhammer - Google Patents

Description

Pneumatic demolition hammers using tubular distribute, 1 spool valve is known. Such hammers have two benches and a spool box equipped with several rows of radial channels. In these pneumatic hammers, the slide valve is moved from the lower to the upper position after the piston opens the hammer of the exhaust windows, which leads to excessive air consumption.

In the proposed jackhammer, in order to suspend the cutoff of the air supply when the working cavity of the hammer is filled, the annular space below the lower ledge of the tubular slide valve communicates with the working cavity of the body with channels opened by the piston of the impactor at the end of its working stroke before opening the exhaust windows. In order to provide an automatic lubricant supply, the oil-containing cavity of the housing is connected with the annular space, surrounding the spool box, through a channel and a labyrinth.

formed by the threaded part of the plug cavity.

FIG. 1 shows a longitudinal section of the proposed II.matik jackhammer; in fig. 2 is an air distribution pattern; in fig. 3-part oiler.

The triggering device of the hammer has the form of a valve U, opened by pressing 2 on the rod 3. Compressed air through the inlet pipe 4 enters the annular chamber 5, surrounding the empty spool box 6.

When the working stroke of the drummer 7, the spool 8 occupies the lower position (Fig. 2), in which the compressed air flows through the channels of the Russ of the spool box 6 to 9 above the drummer 7 and go down it. The air above the hammer 7 exits through the exhaust ducts 10, and from the moment they are closed by the lower edge of the hammer 7 through the longitudinal channels // of the barrel 12, the channels of the shaft of the spool box 6, the ring undercut 13, the channels of the shaft and then into the channels 14 exhaust.

rioc.ie, when the upper edge opens the drummer / ciioeil with Ktiiia.ibi 15, compressed along the canal of the rock of Zto.tochnikova to (Rokp 6 popgastast under the second ledge of the Zoot 8).

All the properties of yes1; ls1i1e and .9 camera are less than dar.tep in the net,: k) .1111 8 move up to the upper position and the air flow from the network to the chamber 9 times short. Da.tkmppee the accelerated motion of the striker 7 will be iron suckers due to inicHinpeHiiH air in the chamber 9.

When the drummer 7 occroses the demolition of Bepxiieii with the kromdchii Biiix, oiiiii ie kaia, we are 16 ciBo.ia 12, it will come out 1,1) of the air from the chamber .9. At the end of his turn down, Dari1n 7 to the tail of the 17th Inika will strike.

In the course of the 1st course of the striker 7, the zoo / kttnik 8 occupies the uppermost position. S. press 1m 1 air and stand through the canal of the tusk, the zototnikovoy box 6, but 1 точtocht / L, channels of the rus, channels // c) about the cavity 18 const. 12 and 1H) and hit 7; up to 7 upwards. Subscribe to the top, hit 7 pts, from the camera, 9, KOTOpbHi goes out to the channels 1 /. and 19. Put on the back of the head of the cannon 7 canals of 19 k, 9 the compression of the air will begin. When. Yes1) Inc. 7 the lower edge will open a canal. 16 will be produced by air from 18%. Under the action of compressed air in chamber 9 of this1 and 8, the lower limit will not be detected, and the working cycle of the hammer will repeat.

Automatic lubrication of the washes. Irn Pomonp oiler 20. Embedding in a bunch;) weave. Oil 20 cocToirr from chamber 2 of microblocks 22. and A11010 two

X) .1 of the first Sliver 23n 24. Cana. To. 1 25 Groove 24 communicates with the short chamber 5. The spaces formed by the grooves 23 to 24 and .m. grease 20, communicate between themselves through the maze, as a result) which thread is used 25.

11ri Jovi. shade the chamber 5 into the oil can 20 through the channel 25 and the air is compressed. When pressure is applied in the chamber 5, the part 1t of air comes out of the oil filter 20 through the channel 25 with a weight of 100,000 tons of oil (1) suction oil lubricant H 8.

Subject invention

1. Pisvmat1 Ch (tkogo iznnn, 1Y mytototok with irimeeniem tubular dispersed. Body tiles with two benches, zot.tochnikoy box, supplying and with several rt) adia.1yyhkh kana.top, about. 1 and h) K) HI and with the fact that, in order to implement the cut-off of the air inlet and the air flow, the hammer is working, the space is n-single with the shoulder of the fire, working with the working chine kog nlsa kana.tami, opened by the porgin of the drummer in KoiHie of his working hours

OPEN THE EXIT TO THE OCK.

2. The form of clutch-1 nimatmatche SK01CH) otboynogo mo.totk io n. 1, about t. and h and w and HI so that a 1st-nelyo obesiechs1n avtoma1T1cheskoy .chodachi lubricant in the housing with imeyuisch maslosodsrzhai1a po.tost soobI1; ene kolnevym space surrounding the slide valve box iosredstvom kana, and that, tabiriita formed threaded part zag.plnki but.tosty.

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No. 90018

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