SU1766280A3 - Air valve distributor - Google Patents

Abstract

The invention relates to the field of pneumatics and is intended for local and distant control by actuating pneumatic mechanisms. The purpose of the invention is to increase the reliability and simplify the manufacturing technology by eliminating seals between the drive elements of the locking bodies and the pneumatic distributor housing. The valve valve includes a housing 1 with channels 2, 3, and 4 for inlet, outlet, and pneumatic communication with the actuator, respectively, and shut-off bodies 5 and 6 installed in it and inlet of the medium. The cavity 7 formed in the cluster 1 is connected to the channel 4. A spring-loaded double-arm lever 9 is installed in it, through which the kinematic interaction between the actuator and the valve shut-off elements is provided. The valve is equipped with a screw 10, which provides adjustment of the force through the spring 7 and the lever 8 to the locking member 5, which makes it possible to select the optimal load on the valve actuator at the set pressure of the medium at the inlet. A distinctive feature of a pneumatic distributor is the absence of seals between the drive elements of the locking bodies and the body, which ensures high reliability of operation over a wide range of temperature variations, as well as increases the shelf life and operation. 1 hp f-ly, 2 ill. and with

Description

The invention relates to the field of pneumatics and is intended for local and remote control of pneumatic mechanisms.

The aim of the invention is to increase the reliability of operation by eliminating seals between the valve actuator elements and the pneumatic distributor housing.

FIG. 1 shows a valve valve with a cam and solenoid valve actuators; Fig. 2 is a diagram of a pneumatic actuator, illustrating the possibility of using a valve pneumatic distributor therein.

The valve valve includes a housing 1 with channels 2,3 and 4, corresponding to the inlet, outlet of the working medium and pneumatic connection with the actuator, and also installed in it pairwise spring-loaded shut-off members 5 and 6, respectively, for inlet and outlet of the medium. There are no seals between the drive elements of these bodies and the housing. The housing 1 has a cavity 7, connected to the channel 4, in which a spring-loaded spring 8 is installed and kinematically connected with the locking bodies 5 and 6 of the two shoulders lever 9.

To enable adjustment of the force applied to the locking member 5 through the spring-loaded two-armed lever 9, the distributor is provided with

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screw 10 installed in channel 4 coaxially with channel 3.

For local control of the actuator, for example, a cam switch 11 with a common axis 12 can be used with it located on the distributor case itself. The number of cams and the number of fixed positions of the switch will depend on the number of locking members (valves) installed in the housing and switched in the specified sequence.

For remote control of the valve distributor, an electromagnet 13 can be mounted on the housing 1, acting on the shut-off parts with a barrel 14.

Valve valve works as follows.

Mechanical action on the locking organ 6 through the medium discharge channel 3 (by turning the cam or attracting the electromagnet core) opens the channel 3 and discharges the working medium from the channel 4 having a pneumatic connection with the actuator. At the same time, the spring-loaded lever 9 is affected through the locking member 6, as a result of which the locking member 5 intersects the medium inlet channel 2. With the termination of the mechanical action on the valve body,

the action of the force of the spring 8 locks the locking body 6 with the channel 3 and opens the channel 2 by acting on the locking body 5, thus providing the inlet of the working fluid through the cavity 7 into the channel 4.

With the use of an electromagnet, which uses a permanent magnet as the magnetic circuit, the valve actuator can be controlled by pulses of different polarity.

Claims (2)

1. Valve pneumatic valve, comprising a housing with inlet, outlet and pneumatic communication channels with an actuator in which pairwise spring-loaded inlet and outlet valves of the medium are installed, characterized in that, in order to increase reliability in operation, a cavity is made in the housing a pneumatic link with a double-arm lever, spring-loaded and kinematically connected to the locking bodies; 2. Air valve pop. 1, which is characterized by the fact that, in order to simplify the design, the outlets of the medium and the pneumatic connection are made coaxially, and the distributor is provided with a spring force adjustment screw installed in the pneumatic communication channel. V Y; r1  } Phage