CN207920999U - A kind of high-precision self-operated digital control meter instrument - Google Patents
A kind of high-precision self-operated digital control meter instrument Download PDFInfo
- Publication number
- CN207920999U CN207920999U CN201820294105.6U CN201820294105U CN207920999U CN 207920999 U CN207920999 U CN 207920999U CN 201820294105 U CN201820294105 U CN 201820294105U CN 207920999 U CN207920999 U CN 207920999U
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- China
- Prior art keywords
- valve
- end cap
- way change
- cylinder body
- right end
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- Expired - Fee Related
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Abstract
The utility model discloses a kind of high-precision self-operated digital control meter instrument, including exporting three position three-way change valve, cylinder body, guide cylinder, serving volume valve and input three position three-way change valve, the guide cylinder left end is connect with the right end cap of cylinder body right end, guide cylinder right end sets end cap, piston rod left end in cylinder body passes through the left end cap of cylinder body left end, right end enters guide cylinder across right end cap, two imports are respectively connected to by left end cap and right end cap with cylinder interior by the input three position three-way change valve and output three position three-way change valve respectively, displacement sensor and position detecting device are set on the inside of the cylinder body outer end cap and transfer data to input three position three-way change valve and output three position three-way change valve, the outlet of the serving volume valve is connected to the entrance of input three position three-way change valve.The utility model increases a metering device on the basis of serving volume valve, is operated using the power drive of the fluid metering device, and measuring accuracy is high.
Description
Technical field
The utility model is related to a kind of high-precision self-operated digital control meter instrument, belong to fluid machinery technical field, can be extensive
Accurate measurement applied to fluid flow in process industrial.
Background technology
Flow instrument is most important in one of major class instrument in process automation instrument and device and commercial measurement
One of instrument.In process automation instrument and device, flow instrument has two big functions：As automatic process control system system
It detects instrument and measures total scale of material quantity.With the continuous development of process industrial, the accuracy to flow measurement and model
It is higher and higher to enclose requirement.
In chemical industry, flow measurement inaccuracy can cause chemical composition distribution ratio to lack of proper care, and can not ensure product quality, sternly
Weight also occurs that work safety accident.Traditional flowmeter type is various, each has its specific adaptability and limitation,
It is generally difficult to reach balanced between the performance parameters such as stability, flow and precision, its application range is made to be subject to certain restrictions.
Utility model content
The goal of the invention of the utility model is：In view of the above problems, a kind of high-precision self-operated numerical control is provided
Gauge needs high-precision measuring flow to solve the problems, such as that existing gauge measuring accuracy is not generally high to meet some
Produce occasion.
The technical solution adopted in the utility model is such：
A kind of high-precision self-operated digital control meter instrument, including output three position three-way change valve, cylinder body, guide cylinder, flow are watched
Valve and input three position three-way change valve are taken, the guide cylinder left end is connect with the right end cap of cylinder body right end, and guide cylinder right end sets end
Lid, the interior setting piston rod of cylinder body and piston, the piston rod left end pass through the left end cap of cylinder body left end, piston rod right end to pass through the right side
End cap enters guide cylinder and guide pad is arranged in end, and the input three position three-way change valve and output three position three-way change valve are each
It is connected to respectively with cylinder interior by left end cap and right end cap from by two imports, setting displacement biography on the inside of the cylinder body outer end cap
Sensor and position detecting device simultaneously transfer data to input three position three-way change valve and output three position three-way change valve, the stream
The outlet of amount servo valve is connected to the entrance of input three position three-way change valve.
Preferably, the output three position three-way change valve, cylinder body, guide cylinder, serving volume valve and input 3-position-3-way
Reversal valve is fixedly mounted on jointly on one piece of bottom plate.
Preferably, end position is correspondingly arranged piston stopper before and after piston on the piston rod.
In conclusion by adopting the above-described technical solution, the beneficial effects of the utility model are：
1, increase a metering device on the basis of serving volume valve, fluid is made to be again passed through after flowing through serving volume valve
The metering device is operated using the power drive of the fluid metering device, achievees the purpose that detect and improve measuring accuracy in real time；
2, the change in displacement and movement feelings of cylinder inner carrier are detected in real time by displacement sensor and position detecting device
Condition, and change according to the displacement of piston the getting type of each inlet and outlet of three position three-way change valve in due course, it enables a fluid to continuous
Ground measuring accuracy is improved in the case where not influencing fluid flow state by the device；
3, suitable for requiring occasion and the field of continuous high-acruracy survey flow；
4, simple in structure, cost is relatively low.
Description of the drawings
Fig. 1 is the overhead sectional view of the utility model.
It is marked in figure：1- bottom plates；2- exports three position three-way change valve；3- cylinder bodies；4- pistons；5- right end caps；6- guide cylinders；
7- guide pads；8- displacement sensors；9- end caps；10- position detecting devices；11- serving volume valves；12- piston stoppers；13- is defeated
Enter three position three-way change valve；14- piston rods；15- left end caps.
Specific implementation mode
Below in conjunction with the accompanying drawings, the utility model is described in detail.
Embodiment：
As shown in Figure 1, a kind of high-precision self-operated digital control meter instrument, including export three position three-way change valve 2, cylinder body 3, lead
To cylinder 6, serving volume valve 11 and input three position three-way change valve 13, the right end cap 5 of 6 left end of the guide cylinder and 3 right end of cylinder body
Connection, 6 right end of guide cylinder set end cap 11, piston rod 14 and piston 4 are arranged in cylinder body 3, and 14 left end of the piston rod passes through cylinder body 3
The left end cap 15 of left end, 14 right end of piston rod pass through right end cap 5 to enter guide cylinder 6 and guide pad 7, the input are arranged in end
Two imports are respectively passed through left end cap 15 and right end cap 5 by three position three-way change valve 13 and output three position three-way change valve 13 respectively
It is connected to 3 inside of cylinder body, 3 outer end cap of the cylinder body, 9 inside is arranged displacement sensor 8 and position detecting device 10 and passes data
It is defeated to input three position three-way change valve 13 and output three position three-way change valve 13, the outlet of the serving volume valve 11 and input three
The entrance connection of position three-way diverter valve 13.
The output three position three-way change valve 2, cylinder body 3, guide cylinder 6, serving volume valve 11 and input 3-position-3-way commutation
Valve 13 is fixedly mounted on jointly on one piece of bottom plate 1.
End position is correspondingly arranged piston stopper 12 before and after piston 4 on the piston rod 14.
In the utility model gauge, the fluid drawn from serving volume valve 11, from input three position three-way change valve 13
Then Pi mouthfuls from Ai mouthfuls into going out, into cylinder body 3, Bi is in off state at this time, and fluid matasomatism makes it to the right in the left side of piston 4
Movement, the liquid on 4 right side of piston, which is squeezed from the Bo mouths of output three position three-way change valve 2, to be entered, and is then flowed out from Po mouthfuls.
When piston 4 moves to stroke end under Fluid pressure effect（Right end）, at this time by serving volume valve 13
Fluid, from input three position three-way change valve 13 Pi mouths into, then go out from Bi mouthful, into cylinder body 3, at this time Ai be closing shape
State, fluid matasomatism make it move downward in 4 right side of piston, and the liquid in 4 left side of piston is squeezed from output 3-position-3-way commutation
The Ao mouths of valve 2 enter, and are then flowed out from Po mouthfuls.
In this way, piston 4 just completes the reciprocating motion of a cycle by the pressure of liquid itself.
Position detecting device 10 and displacement sensor 8 acquire the position signal and displacement signal data of piston rod 14 in real time,
And data to be used to control the open and-shut mode of two mouths of output three position three-way change valve 2 and input three position three-way change valve 13.
Claims (3)
1. a kind of high-precision self-operated digital control meter instrument, it is characterised in that:Including exporting three position three-way change valve（2）, cylinder body
（3）, guide cylinder（6）, serving volume valve（11）With input three position three-way change valve（13）, the guide cylinder（6）Left end and cylinder body
（3）The right end cap of right end（5）Connection, guide cylinder（6）Right end sets end cap（9）, cylinder body（3）Interior setting piston rod（14）And piston
（4）, the piston rod（14）Left end passes through cylinder body（3）The left end cap of left end（15）, piston rod（14）Right end passes through right end cap（5）
Into guide cylinder（6）And guide pad is set in end（7）, the input three position three-way change valve（13）It is changed with output 3-position-3-way
To valve（13）Two imports are respectively passed through into left end cap respectively（15）And right end cap（5）With cylinder body（3）Inside connection, the cylinder body
（3）Outer end cap（9）Displacement sensor is arranged in inside（8）And position detecting device（10）And transfer data to input 3-position-3-way
Reversal valve（13）With output three position three-way change valve（13）, the serving volume valve（11）Outlet with input 3-position-3-way commutation
Valve（13）Entrance connection.
2. a kind of high-precision self-operated digital control meter instrument according to claim 1, it is characterised in that：The output three three
Logical reversal valve（2）, cylinder body（3）, guide cylinder（6）, serving volume valve（11）With input three position three-way change valve（13）It is common fixed
Mounted on one piece of bottom plate（1）On.
3. a kind of high-precision self-operated digital control meter instrument according to claim 1, it is characterised in that：The piston rod（14）
On in piston（4）Front and back end position is correspondingly arranged piston stopper（12）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820294105.6U CN207920999U (en) | 2018-03-02 | 2018-03-02 | A kind of high-precision self-operated digital control meter instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820294105.6U CN207920999U (en) | 2018-03-02 | 2018-03-02 | A kind of high-precision self-operated digital control meter instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207920999U true CN207920999U (en) | 2018-09-28 |
Family
ID=63601227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820294105.6U Expired - Fee Related CN207920999U (en) | 2018-03-02 | 2018-03-02 | A kind of high-precision self-operated digital control meter instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207920999U (en) |
-
2018
- 2018-03-02 CN CN201820294105.6U patent/CN207920999U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180928 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |