SU892079A1

SU892079A1 - Rotary disc shutter

Info

Publication number: SU892079A1
Application number: SU792836856A
Authority: SU
Inventors: Олег Георгиевич Крыжановский; Валерий Федорович Яковлев
Original assignee: Предприятие П/Я А-7899
Priority date: 1979-11-11
Filing date: 1979-11-11
Publication date: 1981-12-23

Description

С54) ПОВОРОТНЫЙ ДИСКОВЫЙ ЗАТВОРC54) ROTARY DISK PLUG

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Изобретение относитс к трубопроводной арматуре, преимущественно к поворотным дисковым затворам, предназначенным дл управлени потоком рабочей среды.The invention relates to pipe fittings, mainly to butterfly valves, designed to control the flow of the working medium.

Известны поворотные дисковые затворы , предназначенные дл управлени .-потоком рабочей среды, в которых ось вращени диска совпадает с центром диска Rotary butterfly valves are known for controlling the flow of working medium in which the axis of rotation of the disk coincides with the center of the disk.

Недостатком таких затворов вл етс то, что поворотный диск может приводитьс во вращение только с помощью привода.The disadvantage of such closures is that the rotary disk can only be rotated by means of an actuator.

Известны затворы, в которых ось вращени диска смещена относительно его центра. В таких затворах поворотный диск мо;жет приводитьс во вращение рабочей средой 12.Known valves in which the axis of rotation of the disk is shifted relative to its center. In such valves, the turntable may be rotated by the working medium 12.

Недостаток такого затвора заключаетс в невозможности.одновременного использовани затвора, как регулирующего органа и- перекрывающего устройства при аварийном остановеThe disadvantage of such a shutter is the impossibility of simultaneous use of the shutter as a regulator and overlap device during an emergency stop.

привода.drive.

Цель изобретени - расширение функциональных возможностей, затвора.The purpose of the invention is to expand the functionality of the shutter.

Поставленна цель достигаетс тем, что на валу диска установлены две полумуфты, на одной из которых уста-1новлены приводной электромагнит с корем-толкателем, шток и рычаги, а на второй - упоры, при этом на валу размещены подпружиненные ролики, взаимодействующие с упорами и рычагами , а на штоке закреплены блоки,The goal is achieved by the fact that there are two coupling halves on the disk shaft, on one of which a drive electromagnet with a push-rod, a rod and levers are mounted, and stops on the second, while spring-loaded rollers interacting with stops and levers are placed on the shaft , and blocks are fixed on the rod,

.посредством которых рычаги кинематически св заны с корем-толкателем приводного электромагнита с помощью by means of which the levers are kinematically connected with the push-rod of the driving electromagnet by

10 тросов.10 cables.

На фиг.1 - изображен затвор, общий вид; на фиг.2 - то же, разрез, на фиг.З - сечение А-А на фиг.2; на фиг. 4 - затвор, вид сверху. Figure 1 - shows the shutter, a general view; figure 2 - the same section, fig.Z - section aa in figure 2; in fig. 4 - shutter, top view.

Затвор состоит из корпуса 1, дис15 ка 2, закрепленного на валу 3, смещенного относительно диска. С валом соединена полумуфта 4 с роликами 5, взаимодействующими с упорами 6 на второй полумуфте 7, и рычагами 8, The shutter consists of a housing 1, a disk 2, mounted on a shaft 3, offset from the disk. With the shaft connected to the coupling half 4 with the rollers 5, interacting with the lugs 6 on the second coupling half 7, and the levers 8,

20 закрепленными на ос х 9 в полумуфте 7, На стойке 10 полумуфты 7 закреплены приводной электромагнит 11 с корем-толкателем 12 и подпружинен25 ным штоком 13. На штоке установлены блоки 14. Тросы 15 пропускаютс через блоки 14, при этом один конец тросов крепитс к рычагам 8, а второй с помощью регулируемых опор 16 и пружин 17 - к стойке 10.20 mounted on axles 9 in the coupling half 7; On the rack 10 of the coupling half 7, a driving electromagnet 11 is secured with a push rod 12 and a spring loaded rod 13. The blocks 14 are mounted on the rod. The cables 15 are passed through the blocks 14, while one end of the cables is attached to levers 8, and the second with adjustable supports 16 and springs 17 - to the rack 10.

Claims

The 30 half coupling 7 is connected with the electric drive 19 by means of the actuating lever 18. The shutter operates as follows. In the presence of current in the connected circuits of the electric drive and the electromagnet, under the action of electromagnetic forces, the measles 12 and the rod 13 move to the left, while the length of the cables 15 between the blocks 14 and the ends of the levers 8 decrease, the levers turn and press the rollers 5 to the stops b, wa 3 the disk 2 and the driving lever 18 soe dinene among themselves. Using the electric drive 19, the disk 2 is rotated to the required angle to regulate the flow through the valve. When the current in the electric circuits of the electric drive and the electromagnet disappears, the spring-loaded brush moves to the right, and the length of the cables 15 between the blocks 14 and the ends of the levers 8 increases, the levers 8 move away from the rollers 5. The shaft 3 of the disk 2 and the drive lever 18 are disconnected. Under the action of the reverse flow of the medium and under its own weight, the disk is transferred to the closed position by turning the shaft 3 and the coupling half 4 relative to the fixed coupling half 7. The shutter is emergency closed. Claims The rotary disk shutter, in the casing of which a rotary disk connected to the drive shaft is installed with a rotation axis displaced relative to the disk center, characterized in that, in order to enhance the functionality, two coupling halves are installed on the disk shaft, one of which is installed. a drive electromagnet with a pushing pusher, brushes and levers, and on the second - stops, while on the shaft there are spring-loaded rollers interacting with the stops and levers, and on the rod are fixed blocks by means of which Steps kinematically linked to the armature-actuating tappet of the electromagnet through cables. Sources of information taken into account in the examination 1. US Patent No. 3341170, cl. 251-306, 1967.

2. US patent No. 3572632, cl. 251-306, 1971.

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