RU1810617C - Distributing device - Google Patents

Abstract

Usage: in pneumatic systems for controlling the movement of air motors, Summary of the invention: the switchgear comprises a housing 1, in which there is a membrane 2 with two shanks, on each of which a nut 4 with a rubber ring 5 and a lock nut 6 are fixed. In addition, the switchgear is equipped with bushings 7 and covers 10. When air enters the left cavity of the pneumatic distributor, the membrane 2 bends to the right, passing air into the cylinder cavity C1 and vice versa, when air enters the right cavity of the membrane 2 bends to the left and lets air into the cavity of cylinder C2. Moreover, the shank of the membrane 2 closes the hole with a rubber ring 5 on the side of the pneumatic distributor cavity into which the compressed air enters, and opens the hole on the opposite side for the exhaust air coming from the cylinder cavity. 1 ill.

Description

The invention relates to the field of automatic control and can be used in pneumatic systems.

The aim of the invention is to enhance the functionality.

The drawing shows the design of a switchgear.

The distribution device consists of a housing 1, in which a membrane 2 with two pushers 3 is located, having shanks with a screw thread on the end, on each of which a nut 4 with a rubber ring 5 and a lock nut 6 are fixed. Inside the housing 1, on both sides of the membrane 2 are installed bushings 7 with openings for air passage. The bushings 7 are made with conical protrusions and are intended to close one cavity and open the other. The membrane 2 is installed in the housing with the formation of control cavities 8.9. Lids 10 are fastened from the ends to the housing 1 to clamp the sleeves 6 through the rubber bands 8. In the lids 10 there are channels 11 overlapped by the throttles 12. Opening or closing the channel 11 with the throttle 12 allows you to control the speed of the cylinder. In the housing 1 there is an opening 13 filled with foam, allowing air to be released without increased noise and replaces the muffler.

The directional valve operates as follows. When the electro-pneumatic valve is turned on, compressed air supplied to the air distributor enters one of the cavities 8 or 9. Membrane 2 bends to the right when air enters the left cavity 8, and air enters the cylinder cavity C 1 and vice versa when air enters the right cavity 9. the membrane 2 bends to the left and air enters the cavity of cylinder C 2. The shank of the membrane 2 closes the hole with a rubber ring 4 from the side of the cavity into which compressed air enters and opens the hole from the opposite side

for exhaust air coming from the corresponding cylinder cavity.

When the electropneumatic valve is switched off, the cylinder cavity is locked and the exhaust air exits through the throttle.

Claims (1)

The distribution device, mainly for pneumatic units, comprising a housing in the cavity of which a membrane is installed with the formation of two control cavities, pushers rigidly connected to the membrane and placed on both sides of it, locking elements placed on the side of the covers, while the housing made with openings for the inlet and outlet of the working medium in the control cavity, characterized in that, in order to expand the functional capabilities, the housing is equipped with bushings with cone-shaped protrusions PAMI, pushers configured screwthreaded shank and the locking elements are provided with nuts yn lotnitelnymi rings and locknuts to cooperate with conical protrusions bushings.