SU631730A1

SU631730A1 - Wedge-shaped closure

Info

Publication number: SU631730A1
Application number: SU762432330A
Authority: SU
Inventors: Александр Николаевич Пантелеев
Original assignee: Предприятие П/Я А-7755
Priority date: 1976-12-21
Filing date: 1976-12-21
Publication date: 1978-11-05

Description

II

Изобретение относитс к арматуростроеиию .This invention relates to reinforcement.

Известен вентиль, в корпусе которого размещены запорные диски н шпиндель привода , взаимодействующие по клиновым поверхност м Ij.A valve is known in which case the locking discs and the drive spindle are interconnected, which interact over wedge surfaces Ij.

Недостатком указанного вентил вл ютс большие силы трени , возникающие при закрытии вентил и задира иа уплотнительиых поверхност х.The disadvantage of this valve is the great friction forces arising from the closing of the valve and the scuffing and sealing surfaces.

Наиболее близким техническим.решением к изобретен ню вл етс клйиовой затвор, в котором между клиновыми поверхност ми запорных дисков и шпиндел привода размещены тела качеии 21.The closest technical solution to the invented nu is the klyiovy bolt, in which the bodies of the gauge 21 are placed between the wedge surfaces of the locking discs and the drive spindle.

Недостатком указаииого затвора вл етс большой рабочий ход штока привода, необходимый дл открыти затвора, и, как следствие, большие габариты привода и возможность задиров на уплотиительных поверхност х .The disadvantage of this valve is the large working stroke of the actuator stem, which is necessary to open the valve, and, as a result, the large dimensions of the drive and the possibility of scoring on the sealing surfaces.

Цель нзобретени - сиижеиие габаритов привода и повышение надежности работы задвижки.The goal of the invention is to reduce the dimensions of the drive and increase the reliability of the valve.

Это достигаетс тем, что на запорных дисках предлагаемой клиновой задвижкиThis is achieved by the fact that on the locking discs of the proposed wedge valve

вьтолнекы выступы и пазы, а на штоке привода установлены оси качани , свободно размещенные в пазах, и направл ющие поверхкЪсти, взэнмодействующие с выступами .The protrusions and grooves are installed, and on the actuator stem, swing axes, which are freely placed in the slots, and guide surfaces that are exposed with protrusions, are installed.

На чертеже изображена клинова задвижка , продольный разрез.The drawing shows a wedge gate valve, a longitudinal section.

Клинова задвижка имеет корпус I. в котором установлены запорные диски 2 и шток привода 3, между клиновыми поверхност ми которых размещены тела качеии 4. Запорные диски 2 имеют вид двуплечих рычагов и снабжены выступами 5 и пазами 6, в которых размешены оси качени 7, установленные на штоке привода 3.The wedge valve has a case I. in which the locking discs 2 and the actuator stem 3 are installed, between the wedge surfaces of which are placed the cach body 4. The locking discs 2 have the form of double shoulders and are equipped with protrusions 5 and grooves 6 in which the rolling axes 7 are mounted on the drive rod 3.

Выступы 5 взаимодействуют с направл ющими поверхност ми 8., В корпусе I установлен упор 9, ограничивающий перемещение штока привода 3.The protrusions 5 interact with the guide surfaces 8. A stop 9 is installed in the housing I, which limits the movement of the drive rod 3.

Клинова задвижка . работает следующим образом.Wedge gate valve. works as follows.

Claims

When the valve is opened, the actuator stem 3 moves upward, while the protrusions 5 of the locking discs 2 interact with the guide surfaces 8, the locking discs. 2 rotates around the axes of the roller 7 and opens the passage opening. Upon further movement of the actuator stem 3, the axles 7 swing into a co-tact with the lower surface of the grooves 6, the rotational movement of the locking discs 2 stops and these move progressively until the full passage section is opened. When closing the valve, the interaction takes place in reverse order until the actuator stem 3 contacts the stop 9 of the housing 1. Such an embodiment of the valve eliminates the possibility of sealing of the sealing surfaces during its operation and reduces the movement of the actuator stem required to open and close the valve. Claims of the invention Klinov valve, in the case of which are installed locking discs and actuator stem, between which wedge surfaces there are rolling bodies, characterized in that, in order to reduce the dimensions of the actuator and increase reliability, locking discs and grooves are made on the locking discs, and the drive has swing axes freely positioned in the slots and guide surfaces that interact with the protrusions. Sources of information- taken into account in the examination: 1.Certificate of certificate number 7382, cl. F 16 K 3/14, 1928.

2. The copyright certificate number 31200, cl. F 16 K 3/14, 1933.