CN201100434Y - Step automatic control valve - Google Patents
Step automatic control valve Download PDFInfo
- Publication number
- CN201100434Y CN201100434Y CNU2007201257583U CN200720125758U CN201100434Y CN 201100434 Y CN201100434 Y CN 201100434Y CN U2007201257583 U CNU2007201257583 U CN U2007201257583U CN 200720125758 U CN200720125758 U CN 200720125758U CN 201100434 Y CN201100434 Y CN 201100434Y
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- CN
- China
- Prior art keywords
- main shaft
- cabinet
- automatic control
- face
- regulating nut
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a step automatic control valve, comprising a case body, an outlet valve, a main shaft, a step motor, a small gear, a large gear, a movable loam board, an inlet guiding pipe, a regulating nut and the like, wherein the main shaft is fixed with a large gear and a movable loam board which are separately disposed inside a cabinet and an outlet valve body; the movable loam board has a helical groove hole which has a large head and a small end, and the outer side plane of the movable loam board is tightly contacted with the end face of the inlet guiding pipe; the regulating nut is cooperated with screw thread on a boss of the cabinet, and the end face of a pushing bearing inside the regulating nut is pressed on a protruding shoulder of the main shaft when the regulating nut is rotated, thereby pushing the main shaft forwards to regulate the sealing tightness of the end faces of the movable loam board and the inlet guiding pipe, and using positioning bolts to fix the regulating nut on the boss of the cabinet after the regulation and the sealing are finished. For the requirement of the automatic control technology, a three-way pipe is arranged inside an outlet joint, and the outer end face of the three-way pipe is provided with a spanner. The valve has simple structure, safe utilizing and convenient maintenance, applicable to automatic control technology request of the sugar-refinery.
Description
Affiliated technical field
The utility model relates to a kind of valve of automatic controlling liquid flow, in particular in sugar refinery and the valve of the on-line automatic control lime milk of operation pH value flow.
Background technique
The valve that tradition is used for fluid flow control has stop valve, ball valve, tapered valve, needle-valve etc., and be used for resembling the flow of the fluid that in sugar refinery and the on-line automatic control system of the operation pH value such stickiness of lime milk is big, impurity is many, traditional valve is stuck easily, is out of use.Utility model patent " rubbing board formula autocontrol valve " was once applied in calendar year 2001 in the predecessor Qinzhou Huacheng Auto-Controlled Equipment Factory of our company, by near youngster using and putting into practice over year, substantially satisfy the production requirement in sugar refinery, but also go out some important techniques problems cruelly, mainly be to damage easily between rubbing board and the conduit, cause the bad formation seepage of sealing.Be movable because of original catheter again, by the elasticity of the elastic caoutchouc at conduit rear portion conduit and rubbing board surface of contact are sealed between conduit and the rubbing board, but because lime milk is placed on than higher place, when conduit and rubbing board forward flow to and are zero, lime milk can be full of the inner chamber of whole conduit, make the pressure of its formation surpass the elasticity of rubber and inlet ducts retrodicted, make inlet ducts seal face disengaging activity rubbing board the surface and form crack and seepage.It is cumbersome the on-the-spot solution of this problem to occur, and the utility model is innovated at this problem exactly and improved.
Summary of the invention
When being in zero in order to overcome flow, fluid pressure in the conduit surpasses the elasticity of block rubber, inlet ducts is retrodicted, and the contact plane that makes inlet ducts end face disengaging activity rubbing board forms seepage, design proposal of the present utility model is that inlet ducts is fixed on the outlet valve body, and movable rubbing board is fixed on the main shaft, adjusts the sealing between inlet ducts and the movable rubbing board like this, just can guarantee that it has the seepage phenomenon in the time of can not being in zero because of flow.
Sealing available adjustment nut between movable rubbing board and the inlet ducts is adjusted, adjusting nut be with cabinet on boss on screw thread joining, when turning clockwise adjusting nut, the thrust-bearing that is fixed in the adjusting nut just is pressed on the convex shoulder B of main shaft, main shaft is pushed away forward together with movable rubbing board, the outer side plane of movable rubbing board just closely contacts with the end face of inlet ducts, regulate after the sealing, adjusting nut is fixed on the convex shoulder of cabinet with positioning screwn again, so just guaranteed the sealing of movable rubbing board and conduit, as finding seepage is arranged, can just readjust adjusting nut again.When running into the big impurity of particle movable rubbing board when stuck, is made a square toes A at the other end of main shaft, available spanner is with under the artificial rotation youngster, and stuck problem has just solved.
In order to adapt to the technological requirement that the convection cell outlet will separate two passages, a three-way pipe is housed at the outlet connection place.
Such valve mechanism is simple, and is safe and reliable, and maintenance is convenient, is fit to enterprise and produces the technological requirement of control automatically.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is a vertical section structure schematic representation of the present utility model;
Fig. 2 is the utility model M-O1-O2-M cross-sectional structure schematic representation;
The schematic representation of Fig. 3 when to be the movable rubbing board of the utility model with the position of inlet ducts be in the flow maximum;
Schematic representation when Fig. 4 is the movable rubbing board of the utility model with the position of inlet ducts to be in flow be zero.
Among the figure, 01. small gear, 02. gearwheel, 03. stepper motor, 04. the adjusting nut swivel becket, 05. thrust-bearing, 06. adjusting nut, 07. swivel becket spring, 08. positioning screwn, 09. cabinet, 10. main shaft, 11. movable rubbing board, 12. outlet valve bodies, 13. inlet union, 14. catheter body, 15. inlet ducts, 16. three-way pipes, 17. outlet connection, 18. threeway outlet connections, 1,19. threeway outlet connection 2.
Embodiment
Among the figure, be fixed with gearwheel (02) and movable rubbing board (11) on the main shaft (10), and be positioned over respectively in cabinet (09) and the outlet valve body (12), main shaft (10) places on the sliding bearing at boss center, cabinet (09) both sides, threads engaged on adjusting nut (06) and cabinet (09) boss, when rotating adjusting nut swivel becket (04), under the pressure of swivel becket spring (07), adjusting nut (06) also rotates together, place the thrust-bearing (05) in the adjusting nut (06) just to be pressed on the convex shoulder B of main shaft (10), at this moment main shaft (10) also pushes away forward together with the movable rubbing board (11) that is fixed on above it, and movable rubbing board (11) outer side surface just tightly is pressed on the end face C of inlet ducts (15).Regulate the gap, use set screw (08) that adjusting nut (06) is fixed on the boss of cabinet again, so just guarantee that its gap can not change greatly to some extent because of the pressure of lime milk, so can not produce fluid seepage yet.
In the below of cabinet (09) one side stepper motor (03) is housed, stepper motor (03) drives gearwheel (02) by the small gear (01) that is contained in above it under the instruction of computer, meanwhile, gearwheel (02) rotates also, and drive activity rubbing board (11) rotates, have a spiral slotted eye D that the big tail of head is little on the movable rubbing board (11), stepper motor (03) rotates, the spiral slotted eye D of movable rubbing board (11) is also along with rotation, because D is a Luo Xuan Cao Qiu from big to small, so movable rubbing board (11) rotates diverse location, it is also different that the area in its hole aligns the area of inlet ducts end face, and its flow that passes through is also different.According to the technological requirement of controlling automatically, stepper motor (03) rotates by computer instruction at any time like this, and movable rubbing board (11) also rotates under the drive of stepper motor (03) at any time, thereby has reached the purpose of automatic control flow.
Shown in arrow among the figure, fluid enters inlet ducts body (14) by inlet union (13), then after the spiral slotted eye D of inlet ducts (15) by movable rubbing board (11) regulates flow again the outlet through outlet valve body (12) below enter three-way pipe (16), again by threeway outlet connection 1 and threeway outlet connection 2 separately two effluents go out.
Stuck in order to prevent in the liquid medium impurity or large particle, make a square toes A at an end of main shaft, when finding when stuck, pull spanner with manual method and rotate youngster and just can solve down.Make a spanner in addition in the outer end of three-way pipe, the available flow of threeway two sides of manually regulating at any time.
Claims (2)
1. stepping automatic control valve, casing (09), outlet valve body (12), main shaft (10), stepper motor (03), small gear (01), gearwheel (02), movable rubbing board (11), inlet ducts (15), inlet union (13), outlet connection (17), three-way pipe (16), adjusting nut (06) and positioning screwn (08) etc. are arranged, it is characterized in that: be fixed with gearwheel (02) and movable rubbing board (11) on the main shaft (10), and place respectively in cabinet (09) and the outlet valve body (12); Inlet ducts (15) is fixed on the outside of outlet valve body (12), and its end face closely contacts with the outer side plane of movable rubbing board (11); Threads engaged on adjusting nut (06) and cabinet (09) boss, the end face of dress thrust-bearing (05) within it is pressed on the convex shoulder B of main shaft (10), and positioning screwn (08) is fixed in adjusting nut (06) on the boss of cabinet (09).
2. stepping automatic control valve according to claim 1 is characterized in that: outlet connection (17) is contained in the below of outlet valve body (12), and three-way pipe (16) is installed within it, on the exterior edge face of three-way pipe (16) spanner is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201257583U CN201100434Y (en) | 2007-08-02 | 2007-08-02 | Step automatic control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201257583U CN201100434Y (en) | 2007-08-02 | 2007-08-02 | Step automatic control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201100434Y true CN201100434Y (en) | 2008-08-13 |
Family
ID=39936969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201257583U Expired - Fee Related CN201100434Y (en) | 2007-08-02 | 2007-08-02 | Step automatic control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201100434Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103711972A (en) * | 2013-12-13 | 2014-04-09 | 四川大学 | Two-position three-way pilot control valve driven by motor |
| CN106594324A (en) * | 2016-12-28 | 2017-04-26 | 钦州华成自控设备有限公司 | Linear gradual-opening valve for controlling PH value in sugar refinery |
-
2007
- 2007-08-02 CN CNU2007201257583U patent/CN201100434Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103711972A (en) * | 2013-12-13 | 2014-04-09 | 四川大学 | Two-position three-way pilot control valve driven by motor |
| CN103711972B (en) * | 2013-12-13 | 2015-12-09 | 四川大学 | The motor-driven two-position three way pilot-actuated valve of a kind of employing |
| CN106594324A (en) * | 2016-12-28 | 2017-04-26 | 钦州华成自控设备有限公司 | Linear gradual-opening valve for controlling PH value in sugar refinery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080813 Termination date: 20140802 |
|
| EXPY | Termination of patent right or utility model |