CN103790885A - Gas circuit structure with inflating and deflating speed controllable - Google Patents

Abstract

The air path structure with controllable inflation and deflation rate belongs to the air storage type pneumatic actuator; the air source is respectively connected to the air storage tank, one end of the throttle valve D and the a ₁ port of the two-position three-way solenoid valve A through the check valve. The _b1 port and _c1 port of the two-position three-way solenoid valve A communicate with the other port of the throttle valve D and the _b2 port of the two-position three-way solenoid valve B respectively, and the two-position three-way Port _a2 and port _c2 of the solenoid valve B communicate with port _c3 of the two-position three-way solenoid valve C and the gas tank respectively, and ports _b3 and _a3 of the two-position three-way solenoid valve C are respectively connected to the section One end of the throttle valve E communicates with the exhaust hole, and the other port of the throttle valve E communicates with the exhaust hole. This structure uses air as the medium and utilizes the compressibility of air to realize centralized air supply, which greatly simplifies the processing and maintenance of the mechanical structure, and can realize intelligent control of the working speed. It has the advantages of simple structure, low manufacturing cost, safe and reliable operation, Long service life, suitable for long-distance transmission and other advantages.

Description

Inflation and deflation rate controllable air path structure

technical field

The invention belongs to an air storage type pneumatic actuator, in particular to an air path structure with controllable inflation and discharge rates.

Background technique

At present, in some special occasions in the fields of electric power, petroleum and chemical industry, it is often necessary to control the valve to close quickly when the hydraulic source is cut off. However, ordinary hydraulic mechanisms are not only difficult to meet this demand, but also accompanied by a series of problems such as large loss, low efficiency, high heat generation, and safety protection.

Contents of the invention

The object of the present invention is to solve the above-mentioned problems in the prior art, and provide a gas path structure with controllable inflation and deflation rate, which can achieve the characteristics of fast and reliable operation, low power loss, high efficiency and good safety.

The object of the present invention is achieved through the following technical proposals: the air source communicates with the air storage tank, one end of the throttle valve D and the _a1 port of the two-position three-way solenoid valve A through the check valve, and the two-position three-way The _b1 port and _c1 port of the solenoid valve A communicate with the other port of the throttle valve D and _{the b2} port of the two-position three-way solenoid valve B respectively, and the a of the two-position three-way solenoid valve B ₂ port and _c2 port communicate with the c3 port of the two-position three-way solenoid valve C and the gas tank respectively, and the _b3 port and _a3 port of the two-position three-way solenoid valve C are _respectively connected with one end of the throttle valve E and The exhaust hole is communicated, and the other port of the throttle valve E is communicated with the exhaust hole. So far, a gas circuit structure with controllable inflation and deflation rate has been formed.

Compared with prior art, the characteristics of the present invention are:

Using air as the medium, using the compressibility of air, realizes centralized air supply, greatly simplifies mechanical design and maintenance; realizes intelligent control of working speed.

The beneficial effects of the present invention are:

Pneumatic device has simple structure, light weight, easy installation and maintenance; it is not easy to burn and can be used in high temperature places, so it is safe to use; the exhaust gas treatment is simple, does not pollute the environment, and the cost is low; the input and output torque and working speed are easier to adjust than hydraulic and electrical The action speed of the mode is fast; the reliability is high, the service life is long; the cushioning can be realized. It has strong adaptability to impact load and overload; under certain conditions, it can make the pneumatic device have self-holding ability; it is suitable for long-distance transportation.

Description of drawings

Figure 1 is a schematic diagram of the air circuit structure with controllable inflation and deflation rates

Fig. 2 is a schematic diagram of rapid inflation during the operation of the present invention

Fig. 3 is the schematic diagram of slow inflation during the operation of the present invention

Figure 4 is a schematic diagram of rapid exhaust during the operation of the present invention

Fig. 5 is a schematic diagram of slow exhaust during operation of the present invention

In Figure 1: 1 Air source 2 One-way valve 3 Air storage tank 4 Throttle valve D 5 Two-position three-way solenoid valve A 6 Two-position three-way solenoid valve B 7 Gas tank 8 Two-position three-way solenoid valve C 9 Throttle Valve E 10 Vent

Detailed ways

The specific embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

As shown in Figure 1, a gas path structure with controllable inflation and deflation rate, the gas source 1 is connected to the gas storage tank 3, one end of the throttle valve D4 and a of the two-position three-way solenoid valve A5 respectively through the one-way valve 2. ₁ port _is connected, the b1 port and _c1 port of the two-position three-way solenoid valve A5 are respectively connected with the other port of the throttle valve D4 and the _b2 port of the two-position three-way solenoid valve B6, and the Port _a2 and port _c2 of the two-position three-way solenoid valve B6 communicate with port c3 of the two-position _three- way solenoid valve C8 and the gas tank 7 respectively, and port _b3 of the two-position three-way solenoid valve C8 and a ₃ ports communicate with one end of the throttle valve E9 and the exhaust hole 10 respectively, and the other port of the throttle valve E9 communicates with the exhaust hole 10.

The operation process is as follows

Figure 2 is a schematic diagram of rapid inflation. In the gas path structure with controllable inflation and deflation rate, when the two-position three-way solenoid valve A5 is powered off, the _a1 port is turned on, and the _b1 port is cut off. At this time, if the two-position three-way solenoid valve B6 is on Electricity, that is, port b ₂ is turned on, and port a ₂ is cut off, then the outside air is introduced into the air tank 7 through the air source 1, the check valve 2, the two-position three-way solenoid valve A5 and the two-position three-way solenoid valve B6 in sequence, and the air circuit The pressure increases rapidly, and the air tank 7 stores a large amount of compressed air rapidly. The function of the one-way valve 2 and the air storage tank 3 is to prevent the external input air from being disturbed, causing the air pressure in the air circuit to change suddenly.

Figure 3 is a schematic diagram of slow inflation. In the air circuit structure with controllable inflation and deflation rate, when the two-position three-way solenoid valve A5 is powered on, the _b1 port is turned on, and the _a1 port is cut off. At this time, if the two-position three-way solenoid valve B6 is on Electricity, that is, port b ₂ is on and port a ₂ is off, then the outside air is slowly introduced through air source 1, check valve 2, throttle valve 4, two-position three-way solenoid valve A5 and two-position three-way solenoid valve B6 in sequence The gas tank 7, the pressure of the gas path increases gradually, and the gas tank 7 slowly stores a large amount of compressed air.

Figure 4 is a schematic diagram of rapid exhaust. In the air circuit structure with controllable inflation and deflation rate, when the two-position three-way solenoid valve B6 is powered on, the _a2 port is turned on, and the _b2 port is cut off. At this time, if the two-position three-way solenoid valve C8 is off Electricity, that is, port a ₃ is connected, port b ₃ is cut off, the compressed air in the gas tank 7 is connected to port c 3 of the two-position three-way solenoid valve B6 through the port a ₂ of the two-position three-way solenoid valve _B6 , and then through The port _a3 of the two-position three-way solenoid valve C8 leads to the exhaust hole 10, and the air path gas is quickly discharged through the exhaust hole 10.

Figure 5 is a schematic diagram of slow exhaust. In the gas path structure with controllable inflation and deflation rate, when the two-position three-way solenoid valve B6 is powered on, the _a2 port is turned on, and the _b2 port is cut off. At this time, if the two-position three-way solenoid valve C8 is on Electricity, that is, port b ₃ is connected, port a ₃ is cut off, the compressed air in the air tank 7 is conducted from port a ₂ of the two-position three-way solenoid valve B6 to port c ₃ of the two-position three-way solenoid valve C8, and then from The _b3 port of the two-position three-way solenoid valve C8 is connected to the exhaust hole 10 through the throttle valve E9, and the air path gas is slowly discharged through the exhaust hole 10.

Claims (1)

1. an inflation/deflation speed controllable type gas circuit structure, it is characterized in that: source of the gas (1) via one-way valve (2) respectively with gas tank (3), a of one end of throttle valve D (4) and two-position three way magnetic valve A (5) ₁port is communicated with, the b of described two-position three way magnetic valve A (5) ₁port and c ₁port respectively with the another port of described throttle valve D (4) and the b of two-position three way magnetic valve B (6) ₂port is communicated with, a of described two-position three way magnetic valve B (6) ₂port and c ₂port respectively with the c of two-position three way magnetic valve C (8) ₃port and gas tank (7) are communicated with, the b of described two-position three way magnetic valve C (8) ₃port and a ₃port is communicated with one end and the exhaust port (10) of throttle valve E (9) respectively, and the another port of described throttle valve E (9) is communicated with exhaust port (10).

Images