SU506844A1

SU506844A1 - Pneumatic generator

Info

Publication number: SU506844A1
Application number: SU2003749A
Authority: SU
Inventors: Геннадий Михайлович Косолапов; Анатолий Ефимович Руасаковский; Евгений Николаевич Сидоров; Игорь Владимирович Соболевский
Original assignee: Волгоградский Политехнический Институт
Priority date: 1973-03-04
Filing date: 1973-03-04
Publication date: 1976-03-15

Description

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Изобретение отнооитс к автоматическому управлению и может быть дрименено в системах пневматической автоматики.The invention relates to automatic control and can be applied in pneumatic automation systems.

Известен нневгматический генератор, содержащий два клапана с входными каналами низкого и высокого давлени , .выходным каналом и нодвижиым седлом IB каждо м.A non-pneumatic generator is known, which contains two valves with low and high pressure inlet channels, an outlet channel and a slide seat IB each.

Предлагаемый пиевматичеокий генератор отличаетс тем, что, с целью расширени диапазона рабочих частот, в нем установлена П1нев;мат1ичеака камера, разделенна на две полости подпружиненной мембраной, жестко соединенной с подвижными седлами клапанов , которые св заны с корпусами клапанов посредством бистабильных мембран, а выходные каналы клапанов подключены соответственно к полост м пневматической камеры.The proposed pivmatics generator is characterized in that, in order to expand the range of operating frequencies, it has an installed chamber; a chamber divided into two cavities by a spring-loaded membrane rigidly connected to movable valve seats, which are connected to the valve bodies by means of bistable membranes, and the output channels The valves are connected respectively to the cavities of the pneumatic chamber.

Пневматический генератор в таком исполнении позвол ет нолучать симагетричный и несимметричный характер колебаний, исключает расход газовой среды при отсутствии выходного оипнала и мен ет частоту колебаний за счет изменени хода клапанов.Pneumatic generator in this design allows you to get a symametric and asymmetrical nature of oscillations, eliminates the flow of the gaseous medium in the absence of output oipnal and changes the oscillation frequency by changing the valve stroke.

На чертеже схематиче10К1и представлен предлагаемый генератор.In the drawing, a schematic representation of the proposed generator is presented.

Он состоит из двух пневматических клапанов , включающих в себ корпусы 1 и Г, седла 2 и 2 с бистабильными мембранами 3 и 3, седла 4 и 4, клапаны 5 и 5 с пружинами 6 н 6, пружины 7 и 7, и пневматической камерыIt consists of two pneumatic valves, including bodies 1 and G, seats 2 and 2 with bistable diaphragms 3 and 3, seats 4 and 4, valves 5 and 5 with springs 6 and 6, springs 7 and 7, and a pneumatic chamber

8 с мембраной 9 и штоком 10. Мембрана 9 опираетс на нружину малой жесткости 11. Шток 10 жестко св зан с седлами клапанов 2 и 2. Полость А пневматического клапана св зана с полостью Б неаматичеокой камеры, а полость А ав зана с полостью Б . Полость В может сообщатьс с полостью Г через сверление в седле 2 и через зазор между седлами 2 и 4. Полость В может сообщатьс с поластью Г через сверление в седле 2 и через зазор между седлами 2 и 4.8 with a diaphragm 9 and a stem 10. The membrane 9 rests on a spring of low rigidity 11. The stem 10 is rigidly connected to the seats of valves 2 and 2. The cavity A of the pneumatic valve is connected to cavity B of the non-equal chamber, and cavity A is transferred to the cavity of B. The cavity C can communicate with the cavity D through drilling in the seat 2 and through the gap between the seats 2 and 4. The cavity C can communicate with the floor D through the drilling in the seat 2 and through the gap between the seats 2 and 4.

Полости В и В пасто нно соединены с каналом низкого давлени Риву,. а полости Г и Г - с каналом высокого давлени ввх- Cavities B and B are pastelly connected to the Riva low pressure channel. and cavities G and G - with a high pressure channel vvh-

В исходном положении, когда в полост х В и В , Г и Г давлени рав|ны, мембрана 9 под действием пружины 11 занимает К(рай«ее правое положение. Бистабнльные мебраны 3 и 3, окрепленные с седлами 2 и 2, наход тс в правом устойчивом состо нии. Клапан 5 отжат от седла 4 седлом 2 и полО|Сти Г и А соединены . Клапан 5 поджат пружиной 6 к седлу 4. При этом полости В и А соединены.In the initial position, when the pressure in the cavity B and C, D and D are equal, the membrane 9 under the action of the spring 11 occupies K (paradise "its right position. Bistable furniture 3 and 3, fastened with saddles 2 and 2, are in the right steady state. The valve 5 is depressed from the saddle 4 by the saddle 2 and the floor | Stee D and A are connected. The valve 5 is pressed by the spring 6 to the saddle 4. In this case, the cavities B and A are connected.

Давление в полост х Б и Б равно.The pressure in the cavity of B and B is equal.

При подаче входного сигнала Рввх. в полост х Г и А устанавливаетс давление Рввх. а в полости А остаетс давление Рц,, When the input signal Rvvh. In cavity G and A, the pressure Pvvh is established. and in cavity A remains pressure Rc ,,

Claims

At the same time FIRED. RVVH. . and out .. In Polosa B, pressure is established / in. cavity b pressure rd. Under the action of pressure pressures, the membrane 9 is moved to the left, P1p1And this, the rod 10 moves to the left of the saddle 2 and

2. Bistable membranes 3 and 3 become unstable. Upon further movement, the bistable membranes s 3 and 3 occupy the left steady state, with the saddles 2 and 2 further to the left. In doing so, the saddle 2 depresses the valve 5 from the saddle 4, and the cavities D and A are connected. The saddle 2 departs from the valve 5 and the latter is pressed against the saddle 4 by the spring 6, and the lanes T1I G and A are separated. In this, the cavities B and A are connected. In this position, the DITCH. R". ,and I,",. Jaz ,,. . In the cavity B of the pneumatic chamber 8 a pressure is created vbh. cavity B, pressure Pnech, by removing the pressure difference membrane 9 is moved to the right, and the process is repeated until the input signal is given. The saddle 4 together with the valve 5 can move relative to the body 1, and the saddle 4 together with the valve 5 can be displaced relative to the body 1. This changes the gap between the saddle 2 and valve 5 and the gap between the saddle 2 and valve 5. The change the size of the gap leads to a change in the valve seat stroke, and, consequently, the frequency of oscillations of a pneumoric generator. The spring 7 and spring 7 serve to return the seats 4 1 and 4 to their original position. Symmetry or asymmetry. The oscillation is achieved by adjusting the position of the saddles 4 and 4, respectively, with respect to the housings 1 and G. When the input signal is removed, the spring has a low stiffness 11 (Pneumatic oscillator leads to the initial position. Formula of the invention Pneumatic generator containing two valves with low input channels and high pressure, an output channel and a movable seat in each valve, characterized in that, in order to expand the range of operating frequencies, a pneumatic chamber is installed in it and divided by the two cavities spring loaded diaphragm secured to the movable valve seats, which are associated with the housings .klapatsov by bistable meme | branes and outlet channels valves are connected respectively to the cavities of the pneumatic chamber.

5 5 V 4g.

3 8 W 37