CN207487778U - One kind is electric-only propulsion bidirectional double-shaft piston type checking table - Google Patents
One kind is electric-only propulsion bidirectional double-shaft piston type checking table Download PDFInfo
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- CN207487778U CN207487778U CN201721495150.XU CN201721495150U CN207487778U CN 207487778 U CN207487778 U CN 207487778U CN 201721495150 U CN201721495150 U CN 201721495150U CN 207487778 U CN207487778 U CN 207487778U
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- solenoid valve
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Abstract
One kind is electric-only propulsion bidirectional double-shaft piston type checking table,It is related to instrument and meter and technical field of automatic control,Including fuel tank,Measured stream gauge,Bidirectional double-shaft piston cylinder,Displacement sensor,Electric cylinder,1 A of solenoid valve,1 B of solenoid valve,2 A of solenoid valve,2 B of solenoid valve and connecting line,In 2 B of solenoid valve,The connecting line that is set between 1 A of solenoid valve in 1 B of solenoid valve,A bidirectional double-shaft piston cylinder is communicated between the connecting line set between 2 A of solenoid valve,In 1 A of solenoid valve,The connecting line that is set between 1 B of solenoid valve in 2 A of solenoid valve,The fuel tank is communicated between the connecting line set between 2 B of solenoid valve,The displacement sensor and the output axis connection of its end and an electric cylinder for being used to obtain twin shaft displacement data is fixed on the twin shaft,Measured stream gauge is equipped on connecting line between 2 A of solenoid valve and fuel tank；The application offer is a kind of simply, quick, accurate and small volume to be electric-only propulsion bidirectional double-shaft piston type checking table.
Description
Technical field
The utility model is related to instrument and meter and technical field of automatic control, and in particular to one kind is electric-only propulsion two-way double
Axis piston type checking table.
Background technology
The side of the current instrument coefficient of calibration fluid (gas and liquid) flow standard device (such as flowmeter) on the market
Method it is more typical have method of standard table and static weighing method.
Fig. 1 show the implementation demarcated using method of standard table, and standard scale s is connected on measured stream gauge t
On the pipeline of same caliber, in the case of fluid stream dynamic stability, the flow that any moment flows through two tables is equal, is passed through
The volume that two tables are flowed through after stipulated time is equal, according to this basic principle, calculates the instrument system of measured stream gauge
Number.
In the case where calibrating medium is liquid, pass through standard scale s and the liquid of measured stream gauge t at the appointed time
Volume is Vs and Vt, if the instrument coefficient of standard scale and measured stream gauge is respectively Ks, Kt, Ns is same counting time period
The umber of pulse of internal standard table s outputs, Nt are the umber of pulse of measured stream gauge output in same counting time period, then there are following
Relationship：
Vs=Vt；
It derives
Fig. 2 show the implementation demarcated using static weighing method, it is first determined weighing container and appearance of weighing
Secondly the initial mass of remaining liq in device operates commutator, weighing container is flowed liquid into, until the quality thought is enough to reach
To required accuracy, while start timer to measure water injection time, finally determine liquid in weighing container and weighing container
The final mass of body, liquid quality, water injection time and the GB/T17612-1998 the 5th collected according to weighing container in timing time
Other data that chapter and appendix A are discussed acquire flow, so that it is determined that the instrument coefficient of measured stream gauge.
But use method of standard table and static weighing method that the defects of certain is individually present：During using method of standard table, due to
Its measurement accuracy is related with standard meter accuracy, and the precision for causing the test method of method of standard table is not high, and using static weighing
During method, since its accuracy is related with the quality of liquid in weighing container, entire measurement process takes longer, and precision gets over Gao Ze
A whole set of weighing-appliance volume is bigger.
Utility model content
In order to solve above-mentioned deficiency of the prior art, the application provides a kind of simple, quick, accurate and small volume
Bidirectional double-shaft piston type checking table is electric-only propulsion, technical solution is as follows：
One kind is electric-only propulsion bidirectional double-shaft piston type checking table, including fuel tank, measured stream gauge, bidirectional double-shaft piston cylinder,
Displacement sensor, electric cylinder, solenoid valve 1-A, solenoid valve 1-B, solenoid valve 2-A, solenoid valve 2-B and connecting line, the fuel tank
Inside filling has liquid；
The connecting line includes sequentially being equipped with solenoid valve 2- on the connecting line of a cycle connection and the connecting line
B, solenoid valve 1-A, solenoid valve 1-B and solenoid valve 2-A, the connecting line set between solenoid valve 2-B, solenoid valve 1-A with
A bidirectional double-shaft piston cylinder, the bidirectional double-shaft are communicated between the connecting line set between solenoid valve 1-B, solenoid valve 2-A
Piston cylinder includes the twin shaft that its internal cylinder chamber A, cylinder chamber B and one set movably runs through the bidirectional double-shaft piston cylinder, this pair
The piston for being used to separate cylinder chamber A, cylinder chamber B to link with it is fixed on axis, liquid is filled in the cylinder chamber A, cylinder chamber B；Institute
It states and a displacement sensor for being used to obtain twin shaft displacement data and the output shaft of its end and electric cylinder company is fixed on twin shaft
It connects, the electric cylinder is mounted on a pedestal；
The connecting line that is set between the solenoid valve 1-A, solenoid valve 1-B with solenoid valve 2-A, solenoid valve 2-B it
Between be communicated with the fuel tank between the connecting line that sets, quilt is equipped on the connecting line between solenoid valve 2-A and fuel tank
Flow measurement gauge.
Further, central control computer, the central control computer communication connection measured stream gauge and displacement sensing are further included
Device, and the output umber of pulse for obtaining measured stream gauge, the displacement data for obtaining displacement sensor.In addition this practicality is new
The open and close of all solenoid valves in type can also be controlled by the central control computer, but the unlatching of solenoid valve with
Closing technology is technical staff's known technology in the technical field, nor the inventive point of the utility model, herein not
It is described further.
Further, a throttle valve is further included, the throttle valve is mounted on the connecting tube between measured stream gauge and fuel tank
On the road.By setting throttle valve, measured stream gauge can be given to provide a relatively reasonable flow according to actual conditions.
Further, limited block A is further included, limited block B, the limited block A, limited block B are separately mounted to the pedestal
Both sides.By setting limited block A, limited block B on pedestal, the piston in bidirectional double-shaft piston cylinder can be made to be limited in a conjunction
It is moved back and forth in the stroke of reason, has both improved the working efficiency of test, also protect bidirectional double-shaft piston cylinder to a certain extent.
A kind of operation principle of pneumatic propulsion bidirectional double-shaft piston type checking table：
I, the course of work that the piston in bidirectional double-shaft piston cylinder moves right, particular content are as follows：
Step 1. electric cylinder is opened, and output shaft, which is inwardly shunk, drives bidirectional double-shaft piston cylinder inner carrier to move right (this
When solenoid valve 1-B, solenoid valve 2-B close)；
Step 2. solenoid valve 2-A is opened, and under the piston effect of bidirectional double-shaft piston cylinder, cylinder chamber B compressions cause inside it
Liquid runs down connecting pipe is discharged；
Step 3. liquid enters fuel tank by measured stream gauge, while measured stream gauge exports umber of pulse data biography in real time
It send to central control computer；
Step 4. solenoid valve 1-A is opened, and liquid constantly flows into cylinder chamber A in fuel tank.
The course of work that piston in II, bidirectional double-shaft piston cylinder is moved to the left, particular content are as follows：
Step 1. electric cylinder is opened, and output shaft, which stretches out, drives bidirectional double-shaft piston cylinder inner carrier to be moved to the left (this
When solenoid valve 1-A, solenoid valve 2-A close)；
Step 2. solenoid valve 2-B is opened, and under the piston effect of bidirectional double-shaft piston cylinder, cylinder chamber A compressions cause inside it
Liquid runs down connecting pipe flows out；
Step 3. liquid enters fuel tank by measured stream gauge, while measured stream gauge exports umber of pulse data biography in real time
It send to central control computer；
Step 4. solenoid valve 1-B is opened, and liquid constantly flows into cylinder chamber B in fuel tank.
The piston in bidirectional double-shaft piston cylinder either in above-mentioned two situations moves to the left or to the right, is being tested
In one stipulated time of flow meter calibration and calibrating medium is in the case of liquid, there is following relationship：It is double to set S1 representatives
It is accumulated to twin shaft piston cylinder interior cylinder body section, S2 represents the shaft section product of the twin shaft of bidirectional double-shaft piston cylinder, and S3 represents two-way double
Liquid actually uses sectional area and has S3=S1-S2, L to represent displacement sensor and obtained within the stipulated time in axis piston cylinder
Twin shaft displacement data, Nt represents the output umber of pulse of measured stream gauge in same gate time, then can derive by tested
Liquid volume Vt=S3 × L of flowmeter, the instrument coefficient Kt=Nt/Vt of measured stream gauge.
According to above-mentioned technical proposal, the utility model compared with prior art, has the following advantages：
1. the entire measurement process of static weighing method takes very long；Piston in bidirectional double-shaft piston cylinder is moved to arbitrary side
One-shot measurement can be respectively completed, measuring can be simple and efficient twice with slitless connection, no waste stroke；
2. since using electric cylinder, as driving source, whole process is relatively steady；
3. due to using displacement sensor, when especially with high-precision discriminating rate displacement sensor, generally reaching μ
M grades, high certainty of measurement.
Description of the drawings
The utility model is described in further detail below by specific embodiment combination attached drawing.
Fig. 1 is the implementation schematic diagram for utilizing method of standard table in the prior art；
Fig. 2 is the implementation schematic diagram for utilizing static weighing method in the prior art；
Fig. 3 is the schematic device of the utility model.
Wherein, 1, fuel tank；2nd, measured stream gauge；3rd, bidirectional double-shaft piston cylinder；31st, cylinder chamber A；32nd, cylinder chamber B；33rd, twin shaft；
34th, piston；4th, displacement sensor；5th, electric cylinder；6th, solenoid valve 1-A；7th, solenoid valve 1-B；8th, solenoid valve 2-A；9th, solenoid valve 2-
B；10th, pedestal；11st, throttle valve；12nd, limited block A；13rd, limited block B.
Specific embodiment
The utility model is described in further detail below by specific embodiment combination attached drawing.
As shown in figure 3, one kind is electric-only propulsion bidirectional double-shaft piston type checking table, including fuel tank 1, measured stream gauge 2, two-way
Twin shaft piston cylinder 3, displacement sensor 4, electric cylinder 5, solenoid valve 1-A6, solenoid valve 1-B7, solenoid valve 2-A8, solenoid valve 2-B9 and
Connecting line, filling in the fuel tank 1 has liquid；
The connecting line includes sequentially being equipped with solenoid valve 2- on the connecting line of a cycle connection and the connecting line
B9, solenoid valve 1-A6, solenoid valve 1-B7 and solenoid valve 2-A8, the connecting tube set between solenoid valve 2-B9, solenoid valve 1-A6
A bidirectional double-shaft piston cylinder 3 is communicated between road and the connecting line set between solenoid valve 1-B7, solenoid valve 2-A8, it should
Bidirectional double-shaft piston cylinder 3 includes its internal cylinder chamber A31, cylinder chamber B32 and one set and movably runs through the bidirectional double-shaft piston
The twin shaft 33 of cylinder 3, be fixed on the twin shaft 33 with its link for separating the piston 34 of cylinder chamber A31, cylinder chamber B32, the cylinder
Liquid is filled in chamber A31, cylinder chamber B32；One is fixed on the twin shaft 33 and is passed for obtaining the displacement of 33 displacement data of twin shaft
Sensor 4 and its end and the output axis connection of an electric cylinder 5, the electric cylinder 5 are mounted on a pedestal 10；
The connecting line that is set between the solenoid valve 1-A6, solenoid valve 1-B7 in solenoid valve 2-A8, solenoid valve 2-
The fuel tank 1 is communicated between the connecting line set between B9, on the connecting line between solenoid valve 2-A8 and fuel tank 1
Equipped with measured stream gauge 2.
The utility model further includes central control computer (not shown), the central control computer communication connection measured flux
Meter 2 and displacement sensor 4, and the output umber of pulse for obtaining measured stream gauge 2, the displacement for obtaining displacement sensor 4
Data.
The utility model further includes a throttle valve 11, and the throttle valve 11 is mounted between measured stream gauge 2 and fuel tank 1
Connecting line on.
The utility model further includes limited block A12, limited block B13, and the limited block A12, limited block B13 are installed respectively
In the both sides of the pedestal 10.
Use above specific case is illustrated the utility model, is merely used to help understand the utility model, and
Not limiting the utility model.For those skilled in the art of the present invention, the think of according to the utility model
Think, several simple deductions, deformation can also be made or replace.
Claims (4)
1. one kind is electric-only propulsion bidirectional double-shaft piston type checking table, which is characterized in that including fuel tank, measured stream gauge, two-way double
Axis piston cylinder, displacement sensor, electric cylinder, solenoid valve 1-A, solenoid valve 1-B, solenoid valve 2-A, solenoid valve 2-B and connecting line,
Being filled in the fuel tank has liquid；
The connecting line includes sequentially being equipped with solenoid valve 2-B, electricity on the connecting line of a cycle connection and the connecting line
Magnet valve 1-A, solenoid valve 1-B and solenoid valve 2-A, the connecting line set between solenoid valve 2-B, solenoid valve 1-A in electromagnetism
A bidirectional double-shaft piston cylinder is communicated between the connecting line set between valve 1-B, solenoid valve 2-A, the bidirectional double-shaft piston
Cylinder cylinder chamber A, cylinder chamber B and one including its internal setting are movably on the twin shaft of the bidirectional double-shaft piston cylinder, the twin shaft
The piston for being used to separate cylinder chamber A, cylinder chamber B to link with it is fixed with, liquid is filled in the cylinder chamber A, cylinder chamber B；It is described double
The displacement sensor and the output axis connection of its end and an electric cylinder for being used to obtain twin shaft displacement data, institute are fixed on axis
Electric cylinder is stated on a pedestal；
It the connecting line that is set between the solenoid valve 1-A, solenoid valve 1-B and is set between solenoid valve 2-A, solenoid valve 2-B
The fuel tank is communicated between the connecting line put, measured stream is equipped on the connecting line between solenoid valve 2-A and fuel tank
Gauge.
2. one kind as described in claim 1 is electric-only propulsion bidirectional double-shaft piston type checking table, which is characterized in that further includes middle control
Computer, the central control computer communication connection measured stream gauge and displacement sensor, and for obtaining the defeated of measured stream gauge
Go out umber of pulse, the displacement data for obtaining displacement sensor.
3. one kind as claimed in claim 2 is electric-only propulsion bidirectional double-shaft piston type checking table, which is characterized in that further includes a section
Valve is flowed, the throttle valve is mounted on the connecting line between measured stream gauge and fuel tank.
4. one kind as claimed in claim 3 is electric-only propulsion bidirectional double-shaft piston type checking table, which is characterized in that further includes limiting
Block A, limited block B, the limited block A, limited block B are separately mounted to the both sides of the pedestal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721495150.XU CN207487778U (en) | 2017-11-10 | 2017-11-10 | One kind is electric-only propulsion bidirectional double-shaft piston type checking table |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721495150.XU CN207487778U (en) | 2017-11-10 | 2017-11-10 | One kind is electric-only propulsion bidirectional double-shaft piston type checking table |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207487778U true CN207487778U (en) | 2018-06-12 |
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ID=62476250
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721495150.XU Active CN207487778U (en) | 2017-11-10 | 2017-11-10 | One kind is electric-only propulsion bidirectional double-shaft piston type checking table |
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| Country | Link |
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| CN (1) | CN207487778U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109781214A (en) * | 2017-11-10 | 2019-05-21 | 上海扬基电子科技有限公司 | One kind being electric-only propulsion bidirectional double-shaft piston type checking table |
-
2017
- 2017-11-10 CN CN201721495150.XU patent/CN207487778U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109781214A (en) * | 2017-11-10 | 2019-05-21 | 上海扬基电子科技有限公司 | One kind being electric-only propulsion bidirectional double-shaft piston type checking table |
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