SU9529A1 - Pneumatic hammer - Google Patents

Description

During operation of the proposed pneumatic hammer with a bezzolotnikovym distribution, forming dust under the latter can be sucked through its channel in the barrel wall and ejector, using exhaust air periodically from the front and rear chambers of the sleeve in the tubular process against the ejector; For intensive suction of dust by the ejector, in a modified air hammer there is a removable tubular process through which dust is removed using fresh air supplied to the front chamber of the sleeve.

In FIG. 1 shows a pneumatic hammer in longitudinal section, and FIG. 2 - a modified hammer in longitudinal section.

Through the handle 1 of the pneumatic hammer, with a bezzolotnikovym distribution (Fig. 1), fresh air enters the hole 3 of the lid 5, into the annular groove 4, and then passes through the channel 6 of the wall of the sleeve 7 and the hole 8 into the front chamber of the sleeve 7. Elastic force air rises drummer 11 until window 10 is opened,

connected with the window 9, through a channel in the wall of the sleeve (in the drawing, the channel is shown in dotted lines). The drinking air from window 9 into the rear chamber produces the opposite action of the striker until exhaust window 12 opens. Next, the hammer 11 rises again upwards, etc., and the exhaust air will periodically exit through the window 12 and the channel 13 into the opening 14 of the tubular appendix 15 . When exhaust air from the process 15 is ejected into the ejector 16, vacuum will be produced in the channel 18, as a result of which external air will flow through the latter, which will be able to trap the resulting dust from the tool 20 and will be thrown out outwardly through the ejector 16. At the upper portion 17 of the ejector 16 is worn Dust extraction conductive sleeve. The mounted cover 19 serves to use tools of various lengths and to regulate dust suction. LJJypyn with a hole 21 is designed to secure the casing 19 and eliminate the compression between the hammer 11 and the tool 20.

The modification of the described pneumatic hammer is.

that, with the aim of more intensive suction of dust by the ejector, the removable tubular appendix 14 (Fig. 2) is connected with the channel 6j communicating with the fresh air. The effect of the modified air hammer is that fresh air entering the hole 12, through the handle 1, the channel 2, the hole 3 of the cover 5, the annular groove 4 and the channel b by the elastic force lifts the hammer P until the window 23 of the channel opens 9. The incoming air from above the striker from the opening 24 of the channel 9 will reverse the movement of the striker 11 until the exhaust window 10 opened by the channel with the holes 9 on the hammer handle is opened. Later drummer 11 produces identical with the first blows. From channel 6, air enters the opening 33 of the tubular appendix 14 and then passes into the ejector 16. At the same time, dust from the tool 20 is sucked through channel 18 into the ejector 16.

Subject of patent

one; A pneumatic hammer with a bezzolotnikovym distribution, characterized by the use of an ejector 16 (Fig. 1) mounted on the branch pipe of the hammer body and using alternately directed into the tubular spike 15 at the base of the sleeve 7, through the channel 13 in the wall of the latter, exhaust air from the front and rear bushing chambers with a suction target formed at the place of work of dust through the channel 18 and the wall of the barrel, enclosed in an interchangeable casing 19, forming a closed chamber at the place of work.

2. A modification of the hammer described in paragraph 1, characterized in that, with the aim of more intensive suction of dust by the ejector, the detachable tubular spike 14 (Fig. 2) communicates directly with fresh air in the front chamber of the bushing channel 6.

to patent I. V. Schroeder No. 9529,

FIG.