CN2699031Y

CN2699031Y - Mechanical rotary valve

Info

Publication number: CN2699031Y
Application number: CN 03268681
Authority: CN
Inventors: 周希刚
Original assignee: SHANDONG XUESHENG TECHNOLOGY Co Ltd
Current assignee: SHANDONG XUESHENG TECHNOLOGY Co Ltd
Priority date: 2003-07-07
Filing date: 2003-07-07
Publication date: 2005-05-11
Anticipated expiration: 2013-07-07

Abstract

The utility model relates to a mechanical rotary valve. The mechanical rotary valve is a distributing valve which can be used for distributing gas or liquid for three executing units in certain time and in certain quantity. The utility model can be widely applied to various air-driven systems or low hydraulic systems. The mechanical rotary valve comprises a valve body (8) and a valve base (1) which are fixedly connected together, wherein, an inlet of the valve base and an outlet of the valve base are connected with pipe joints. The utility model is characterized in that a synchronous motor (7) is arranged on the valve body, and an axle of the synchronous motor is connected with a rotary axle disk (17) arranged in the valve body in an inserting mode. The rotary axle disk is pressed on a fixing axle disk (3) through a rubber skeleton (4), a pressure spring (9) and a spring stop ring (15), and the fixing axle disk is positioned on the valve base. The top end of the rotary axle disk is tightly pressed on the valve body through a sliding bearing disk. The utility model has the advantages of simple, compact and small structure, reduced cost and easy operation. The alternate pressurization of the three executing units can be realized, and simultaneously, the pressure reducing process of one executing unit is realized. The gas or the liquid is respectively transported, and the arbitrary control of flow capacity is achieved.

Description

Mechanical rotary valve

(1) technical field

The utility model relate to a kind of can be at regular time and quantity carry out a kind of distributing valve that gas or liquid distribute to three performance elements by turns, can be widely used in the various pneumatic or low hydraulic systems, be a kind of mechanical rotary valve specifically.

(2) background technique

At present, the distribution valve that is used for pneumatic or hydraulic control mode mainly contains magnetic slide valve and mechanical type valve, and the major defect of magnetic slide valve is a complex structure, and cost is higher, and working life is shorter; The major defect of mechanical type valve is that volume is bigger, is not suitable for the requirement of miniaturization.

(3) summary of the invention

The utility model purpose is to overcome the shortcoming in the above-mentioned technology, proposes a kind of mechanical rotary valve, makes its structure simpler, reduces cost, and is easy and simple to handle, can shunt gas or liquid, and realize any flow control.

The utility model purpose is realized by following technological scheme: this mechanical rotary valve, include the valve body 8, the valve seat 1 that are fixed together, all be connected with pipe joint in the import of valve seat and the outlet, it is characterized in that being equipped with on the valve body synchronous machine 7, synchronous motor shaft is pegged graft with the rotation reel 17 that is installed in the valve body, the rotation reel is pressed on fixedly on the reel 3 by rubber skeleton 4, pressure spring 9, check ring 15, fixedly reel is positioned on the valve seat, and press by sliding axle tray and valve body 8 rotation reel upper end.

Hole on valve body 8 sidewalls is connected with baffler 14, and is connected with body cavity, and a perforated tube 142 is set in the support 141 of baffler.Perforated tube is a plastic tube.Need the gas or the liquid of discharging in the valve body, discharge by baffler.

On rotation reel 17 end faces a fan-shaped airtight groove 171 and a fan-shaped outer thorough cut groove 172 are arranged, covering of the fan is 95 °---and 147 °.

The rotating speed of synchronous machine is adjustable, is 1 commentaries on classics/per minute---100 commentaries on classics/per minutes.By the rotating speed of conversion synchronous machine, can realize any flow control, Applicable scope is extensive.

The sliding axle tray is made up of last dish 6, lower wall 5, can slide relative between between last dish, the lower wall.When mechanical rotary valve rotates, on coil 6, slide relative between the lower wall 5.Last dish 6, lower wall 5 are made according to a certain ratio by teflon, polyphenylene sulfide, graphite, and its effect is equivalent to a thrust-bearing.

Fixedly reel 3 is processed into by stupalith, its with rotation reel 17 surface of contact through high-precision processing, any surface finish is evenly arranged three

holes

32,33,34 at circumferencial direction by 120 °, also there is a center hole 31 at the center.Center hole 31 is to be used for air inlet body or feed liquor body in valve body, and three holes of circumferencial direction are to mechanical rotary valve outside eluting gas or liquid.

Fixedly be lined with sealing rubber pad 2 between reel 3 and the valve seat 1, guaranteeing the distribution of the gas or the liquid on each road is sealed, between valve seat 1 and the valve body 8 O-ring seals 11 is being arranged.

The working principle of mechanical rotary valve is: when pressed gas or pressured fluid enter the fan-shaped airtight groove 171 that rotates on the reel 17 through valve seat 1 by the hole 31 on the fixing reel 3, because rotation reel 17 is driven by synchronous machine 7 and does at the uniform velocity rotation, fan-shaped airtight groove 171 on the rotation reel 17 is by certain rotation direction, be communicated with hole on the fixing reel 3 at the uniform velocity successively, give each path quantitatively timing supply gas or liquid, the fan-shaped outer thorough cut groove 172 that communicates with the external world simultaneously also is communicated with hole on the fixing reel 3 successively, to the individual channel pressure release.When being in Fig. 9 position, fan-shaped airtight groove 171 communicates with hole 32, and gas circuit or the fluid path that communicate with hole 32 this moment are in pressurized state, and fan-shaped outer thorough cut groove 172 is connected with hole 34, and the gas circuit or the fluid path that are connected with hole 34 are in the pressure release state; When gas circuit or quantitative regularly supply gas of fluid path or liquid, the fan-shaped outer thorough cut groove 172 that communicates with the external world is communicated with

hole

34,33,32 successively, gives each gas circuit or fluid path pressure release; When being in Figure 10 position, fan-shaped airtight groove 171 communicates with hole 34, and gas circuit or the fluid path that communicate with hole 34 this moment are in pressurized state, and hole 32 is in packing state, fan-shaped outer thorough cut groove 172 is connected with hole 33, and the gas circuit or the fluid path that are connected with hole 33 are in the pressure release state; When being in Figure 11 position, fan-shaped airtight groove 171 communicates with hole 33, and gas circuit or the fluid path that communicate with hole 33 this moment are in pressurized state, and hole 34 is in packing state, fan-shaped outer thorough cut groove 172 is connected with hole 32, and the gas circuit or the fluid path that are connected with hole 32 are in the pressure release state; So circulation, that has just finished reciprocation cycle gives each performance element supply gas or liquid at regular time and quantity.

The utility model advantage is that structure is simpler, compact, small and exquisite, reduced cost, easy and simple to handle, can replace to three performance element pressurizations, one of them performance element is realized decompression process simultaneously, energy is conveying gas or liquid respectively, and the rotating speed by the conversion synchronous machine, realize any flow control, be specially adapted to the shunting of low pressure, small-flow gas or liquid.

(4) description of drawings

Fig. 1 is a kind of mechanical rotary valve structural representation,

Fig. 2 is the plan view of Fig. 1,

Fig. 3 is a sliding axle tray structural representation,

Fig. 4 is rotation reel 17 plan views,

Fig. 5 is fixing reel 3 plan views,

Fig. 6 is sealing rubber pad 11 plan views,

Fig. 7 is valve seat 1 plan view,

Fig. 8 is muffler 14 structural representations,

Fig. 9, Figure 10, Figure 11 are confession, exhaust process demonstration graph.

(5) embodiment

This mechanical rotary valve is to be used for indoor aerator, and with airborne nitrogen and oxygen separation, nitrogen is discharged outdoor by muffler, and oxygen stays within.Valve body 8 is fixedlyed connected with valve seat 1 usefulness bolt 12, all be connected with pipe joint 10 in the import of valve seat and the outlet, synchronous machine 7 usefulness bolts 13 are fixedly connected on the valve body 8, synchronous motor shaft is pegged graft with the rotation reel 17 that is installed in the valve body, the rotation reel is pressed on fixedly on the reel 3 by rubber skeleton 4, pressure spring 9, check ring 15, and rubber skeleton 4, pressure spring 9, check ring 15 are combined and be equivalent to an elastic pressure pad.Fixedly reel is positioned on the valve seat, and press by sliding axle tray and valve body 8 rotation reel upper end.Baffler 14 is connected with hole on valve body 8 sidewalls, is connected with body cavity, and a perforated tube 142 is set in the support 141 of baffler.Perforated tube is a plastic tube.Fixedly be lined with sealing rubber pad 11 between reel 3 and the valve seat 1.

Claims

1, a kind of mechanical rotary valve, include the valve body (8) that is fixed together, valve seat (1), all be connected with pipe joint in the import of valve seat and the outlet, it is characterized in that being equipped with on the valve body synchronous machine (7), synchronous motor shaft is pegged graft with the rotation reel (17) that is installed in the valve body, and the rotation reel is pressed on fixedly on the reel (3) by rubber skeleton (4), pressure spring (9), check ring (15), fixedly reel is positioned on the valve seat, and press by sliding axle tray and valve body rotation reel upper end.

2, according to the described mechanical rotary valve of claim 1, it is characterized in that the hole on valve body (8) sidewall is connected with baffler (14), and be connected with body cavity, in the support (141) of baffler, a perforated tube (142) is set.

3, according to the described mechanical rotary valve of claim 1, it is characterized in that rotating a fan-shaped airtight groove (171) and a fan-shaped outer thorough cut groove (172) are arranged on reel (17) end face, covering of the fan is 95 °-147 °.

4, according to the described mechanical rotary valve of claim 1, the rotating speed that it is characterized in that synchronous machine is 1 commentaries on classics/per minute---100 commentaries on classics/per minutes.

5, according to the described mechanical rotary valve of claim 1, it is characterized in that the sliding axle tray is made up of last dish (6), lower wall (5), can slide relative between between last dish, the lower wall.

6, according to the described mechanical rotary valve of claim 1, it is characterized in that fixedly reel (3) is processed into by stupalith, itself and rotation reel (17) surface of contact are through high-precision processing, any surface finish, evenly arrange three holes (32), (33), (34) at circumferencial direction by 120 °, there is a center hole (31) at the center.

7,, it is characterized in that fixedly being lined with sealing rubber pad (2) between reel (3) and the valve seat (1) according to the described mechanical rotary valve of claim 1.