RU1803600C - Pneumatic spool valve distributor of piston pump - Google Patents

Abstract

Usage: hydraulic and pneumatic drives. SUMMARY OF THE INVENTION: A working member is mounted in a housing with the possibility of reciprocating movement. The pushers of the working body are installed with the possibility of a fixed reciprocating movement relative to the body. A compression spring is installed between the pushers. 2 ill.

Description

FIELD OF THE INVENTION This invention relates to a mechanical and hydraulic drive.

The purpose of the invention is to increase reliability by ensuring a smooth running of the working body.

This goal is achieved by the fact that in the pneumatic spool valve of the piston pump containing the housing, a working body mounted in the housing with the possibility of reciprocating movement, the pushers of the working body and the clamps of the working body, the pushers are installed with the possibility of a fixed reciprocating movement relative to the working body, and a compression spring is installed between the pushers.

Comparative analysis of the prototype shows that the claimed pneumatic spool valve of the piston pump is characterized in that the pushers are mounted with the possibility of fixed reciprocating movement relative to the working body, and a compression spring is installed between the pushers, which increases the reliability of operation of the valve. . In FIG. 1 shows a piston pump; in FIG. 2 is a section AA in FIG. 1.

The pneumatic spool valve of the piston pump contains a housing 1, a working body 2, which is a slide valve mounted in the housing 1 with the possibility of reciprocating movement, pushers 3 and 4 of the working body 2 and the latches 5 of the working body 2. Between the pushers 3 and 4 is installed compression spring 6. The working body 2 is connected to the pneumatic supply channel 7, with the atmosphere channel 8 and with the working pneumatic cavities of the piston pump channels 9. 10,11, 12. Pushers 3 and 4 interact with the ends 13 of the double shek 14.

Pneumatic spool valve piston pump operates as follows.

Compressed air through channel 7 through the distributor working element 2, which is in the lower position, through channels 9 and 11 enters the cavity under the double

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nen 14, and the cavity above the piston 14 through the channels 12, 10; the internal bore of the working body 2 and the channel 8 are connected to the atmosphere. In this position of the working member 2, the twin piston 14 begins to mix upward. When approaching the upper position, the twin piston 14 with the inner end 13 presses on the pusher 3, presses the spring 6, and then abuts against the working body 2 and moves it until the latches 5 exit the groove on the outer surface of the working body 2, after which the spring 6 moves the working organ 2 in the highest upper fixed position. As a result, the cavities under the twin piston 14 are connected through the channels 11.9 and 8 to the atmosphere, and the cavities above the piston 14 through the channels 12, 10, the working body 2 and channel 7 with a pneumatic power source. The twin piston 14 begins to move down.

Thus, the interaction of the twin piston 14 with the pushers 3 and 4 causes the alternating connection of the cavities above and below the piston 14 to the air supply or to the exhaust, which ensures continuous reciprocating movement of the twin piston 14. The use of the proposed pneumatic spool distributor of the piston pump will allow improve its reliability

work. f o rmul a invented and

Pneumatic spool valve of a piston pump, comprising a housing, a working body mounted in the housing with the possibility of reciprocating movement, pushers of the working body and clamps of the working body, and so that, in order to increase reliability by ensuring smooth running of the working body, pushers

0 are installed with the possibility of fixed reciprocating movement relative to the working body, and a compression spring is installed between the pushers

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FIG. g