SU787765A1

SU787765A1 - Slide-gate shutter

Info

Publication number: SU787765A1
Application number: SU782567350A
Authority: SU
Inventors: Валерий Тимофеевич Белоусов
Original assignee: Полтавский Машиностроительный Завод Мясного Оборудования
Priority date: 1978-01-10
Filing date: 1978-01-10
Publication date: 1980-12-15

Description

(54) ШИБЕРНБ1Й ЗАТВОР(54) SHIBERNB1Y SHUTTER

1one

Изобретение относитс к машиностроению , конкретно к запорным устройствам емкостной аппаратуры пневмотранспортных установок.The invention relates to mechanical engineering, specifically to locking devices of capacitive equipment of pneumatic conveying installations.

Известен шиберный затвор, на корпусе которого размещен поршневой привод с закрепленным на его поршне штоком, на котором установлен рычаг, соединенный с шибером.A gate valve is known, on the case of which a piston actuator is mounted with a rod fixed on its piston, on which a lever is mounted connected to a gate.

Недостатком этого устройства вл етс невозможность осевого перемеш.ени шибера , что приводит к повышенному износу уплотнительных элементов вследствие посто нного скольжени по ним шибера при функционировании устройства и ведет к с6краш .ению срока их службы.A disadvantage of this device is the impossibility of axial mixing of the gate, which leads to increased wear of the sealing elements due to the constant sliding of the gate on them during the operation of the device and leads to six colors in their life.

Цель изобретени - устранение указанных недостатков и, как следствие, повышение эффективности функционировани устройства .The purpose of the invention is to eliminate these disadvantages and, as a result, increase the efficiency of the device.

Указанна цель достигаетс тем, что затвор снабжен упором, размещенным на корпусе и взаимодействующим с рычагом, соединенным с шибером, а поршень выполнен в виде стакана, в полости которого размешен шток.This goal is achieved by the fact that the valve is provided with a stop placed on the body and interacting with a lever connected to the gate, and the piston is made in the form of a glass in which cavity the rod is placed.

На чертеже схематически изображен щиберный затвор, продольный разрез.The drawing shows schematically the gate bolt, a longitudinal section.

На корпусе затвора 1 установлен поршневой привод 2, состо щий из цилиндра 3, патрубков 4 и 5 управл ющего давлени , 5 крышки 6, в которой размещены неподвижные направл ющие 7. По направл ющим 7 перемещаетс иорщень 8, в полости которого размещен щток 9. В спиральном пазе щтока 9 установлен палец 10, закрепленный на поршне. На штоке 9, установленном в подшипнике 11, закреплен рычаг 12 с установленным на нем шибером 13, прижимающимс к уплотнительному элементу. На подшипнике 11 установлен взаимодействующий с рычагом 12 упор 15, а в цилиндре уста55 новлен амортизатор 16.A piston actuator 2 consisting of a cylinder 3, nozzles 4 and 5 of control pressure 5 of a cover 6 in which fixed guides 7 is placed is mounted on the body of the shutter 1. In the spiral groove of the rod 9 is installed a finger 10, mounted on the piston. A lever 12 is mounted on a rod 9 mounted in a bearing 11, with a gate 13 mounted on it, which presses against the sealing element. A stop 15 interacting with the lever 12 is mounted on the bearing 11, and a shock absorber 16 is installed in the cylinder.

Устройство работает следующим образом .The device works as follows.

Открытие затвора производитс подачей управл ющего давлени в надпоршневую полость через патрубок 5 и соединением сThe opening of the valve is made by supplying the control pressure to the over-piston cavity through the nozzle 5 and connecting it to

Claims

the atmosphere of the piston cavity through the pipe 4, while the piston 8 together with the rod 9, the lever 12 and the gate 13 moves down until the collar of the rod 9 comes into contact with the bottom of the cylinder, and the stop 15 comes out of the hole in the lever 12. Upon further movement of 8 finger 10, interact with the spiral groove in the rod 9, rotates the latter, while the gate 13 releases the valve flow area. When the shutter is closed, the control pressure is supplied to the sub-piston space through the nozzle 4, while the piston 8 rises up and the rod 9 is held in the lower position by the force of the pressure penetrating the piston cavity. Together with the piston 8, the pin 10 moves upwards, which, interacting with the through spiral groove of the rod 9, rotates it. The rotation of the rod 9 terminates at the approach of the finger 10 to the end of the spiral groove, while the stop 15 enters the hole of the lever 12, and with further movement of the piston 8 with the rod 9, the gate 13 sits without sliding on the sealing element 14. Formula of the invention a piston actuator is placed with a rod fixed on its piston, on which a lever is mounted connected to a gate, characterized in that, in order to increase the efficiency of operation, it is provided with a stop placed on the housing and interacting with the lever connected to the gate, and the piston is made in the form of a glass, in the cavity of which the rod is located. Sources of information taken into account in the examination 1. US Patent I 2315775, cl. 251-58, 1943.