CN100588929C - High efficiency high-pressure sensor testing machine - Google Patents
High efficiency high-pressure sensor testing machine Download PDFInfo
- Publication number
- CN100588929C CN100588929C CN200810230022A CN200810230022A CN100588929C CN 100588929 C CN100588929 C CN 100588929C CN 200810230022 A CN200810230022 A CN 200810230022A CN 200810230022 A CN200810230022 A CN 200810230022A CN 100588929 C CN100588929 C CN 100588929C
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- Prior art keywords
- pressure
- valve
- pressure sensor
- pipeline
- testing machine
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- Expired - Fee Related
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Abstract
A high-efficiency high-pressure sensor testing machine comprises a bottom plate provided with a truckle, which has the technical point that: a cabinet and a pressure generating system is connected onthe bottom plate, wherein the system comprises an oil tank fixedly arranged on the bottom plate, a motor and a variable pump are sequentially arranged on the upper part of the oil tank, the pressure outlet of the system is connected with a pipeline through an electromagnetic pressure regulator and a servo overflow valve, after being paralleled to be three-way, the pipeline is led to a testing areawhich is kept closed; an installation clamp is arranged in the testing area through conversion connection of a nested connector, each installation clamp is provided with two to eight installation positions, each of which is provided with a standard pressure sensor and a plurality of tested pressure sensor; a pressurized valve is serially connected to a pressure inlet end of the installation clamp, a cutoff valve is serially connected to a pressure outlet end of the installation clamp, and three-way pressure pipelines are paralleled to one way after the cutoff valve, and connected to a leakagedischarge outlet at the lower part of the testing area; a panel computer and an electrical operation area are embedded into the upper part of the cabinet.
Description
Technical field
The invention belongs to field of measuring technique, specifically a kind of high-efficiency high-pressure sensor test machine that sensor is carried out Performance Detection to the product physical parameter.
Background technology
At present, the existing sensors special inspecting equipment can be realized sinusoidal wave servocontrol, and its shortcoming mainly is to be single waveform.And the unit equipment that existing sensor-specific detects can be realized the quasi-sine-wave servocontrol, and shortcoming mainly is the sinusoidal waveform that is as the criterion, and composite set is that multiple devices make up, and equipment is numerous and diverse.Recently external related data report has and can realize that servo-controlled isolated plant takes place multiple waveform, but detects step complexity, apparatus expensive, testing cost height.In sum, existing sensor-specific checkout equipment characteristics are: be applied to the pressurized screen optional equipment, accuracy is not high, waveform single (quasi-sine-wave), frequency are low.
Summary of the invention
The purpose of this invention is to provide a kind of high-efficiency high-pressure sensor test machine that sensor is carried out Performance Detection.
The object of the present invention is achieved like this: it comprises that one has the base plate of four castors, it is characterized in that: be connected with the rack that forms the testing machine housing on the base plate and be located at the interior pressure generation systems of testing machine housing; The pressure generation systems comprises the fuel tank that is fixedly installed on the base plate, on the fuel tank sidewall, be respectively arranged with liquid level sensor and temperature sensor, be disposed with motor and variable output pump on fuel tank top, its pressure export is connected with pipeline by electromagnetic voltage adjusting valve, servo surplus valve, pipeline is connected in parallel after three the tunnel, leads to the test site that testing machine housing top keeps sealing; The conversion that is provided with in the test site by the bite type joint is connected to sectional fixture, there are two to eight station is installed on the sectional fixture of every road, this installation station is equipped with a standard pressure transducer and some tested pressure transducers, pressure entrance end polyphone pressurizing valve in sectional fixture, pressure export end polyphone stop valve at sectional fixture, three road pressure pipings are parallel to one the tunnel again by behind the stop valve, are connected to the leakage floss hole of bottom, test site;
Liquid trap is installed in leakage floss hole lower end, dress level switch in the liquid trap, and the liquid trap side connects draining valve, and the draining valve outlet is connected with fuel tank by pipeline;
Safty shield is installed on top, test site, and the safty shield middle part has inspection window;
Be inlaid with a panel computer on the top of rack, close the following of panel computer is the electric operation district.
The present invention also is included in and is symmetrically arranged with four dampings of being convenient to support below the base plate and adjusts parallels.
Above-mentioned safty shield supports by two air springs and opens.
Inner at inspection window with the metal protection curtain.
The fan of ventilation also is housed in the left and right sides of cabinet sidewalls.
The present invention has following advantage:
1, adopts many wave frequencies generator of design voluntarily, can realize that (sine wave, trapezoidal wave, triangular wave) takes place three kinds of waveforms.
2, adopt the fast-response proportional pressure control valve, in conjunction with little cavity volume structural design, can realize that pressure responds fast, frequency can reach 5Hz.
3, the measuring-signal by standard transducer through amplifier, feeds back and controls servo surplus valve, can realize efficient match, the accuracy height of waveform, realizes self feed back, self compensation function.
4, pipeline structure compactness, oil circuit is short, can realize that pressurized is even.Pipeline adopts cutting ferrule joint connected mode, can realize little internal resistance, low-pressure loss.
5, utilize liquid level sensor, temperature sensor, pressure transducer, carry out the realization of warning function.Safe, warning function is perfect, has warning functions such as superpressure, overtemperature, leakage.
6, the present invention also have rational in infrastructure, precision is high, cost is low, long service life, safe and reliable, advantage such as range of application is wide.
Description of drawings
Fig. 1 is a structural representation sketch of the present invention;
Fig. 2 is that the A-A of Fig. 1 is to the sectional structure simplified schematic diagram;
Fig. 3 is that the B-B of Fig. 1 is to the sectional structure simplified schematic diagram;
Fig. 4 is an electrical control schematic flow sheet of the present invention.
The symbol description of accompanying drawing major part
1: electric control box 3: pressurizing valve 4: tested pressure transducer 5: standard pressure transducer 7: sectional fixture 8: stop valve 10: motor 11: variable output pump 12: servo surplus valve 13: electromagnetic voltage adjusting valve 17: safty shield 18: inspection window 19: rack 20: panel computer 21: electric operation district 22: fuel tank 24: liquid level sensor 25: temperature sensor 31: leakage floss hole;
The present invention is described in further detail by example below in conjunction with accompanying drawing, but following example only is the present invention's example wherein, the rights protection scope of not representing the present invention and being limited, the scope of the present invention is as the criterion with claims.
Embodiment
Example 1
Shown in Fig. 1～3, complete machine is adjusted parallels 15 by base plate 23 following four dampings and is supported, and four castors 16 is set simultaneously, convenient moving.Connect rack 19 and pressure generation systems 26 on the base plate 23.
Safty shield 17 is installed on 5 tops, test site, supports by two air springs 32 and opens.Safty shield 17 middle parts have inspection window 18, and inspection window 18 is inner with metal protection curtain 33.
Operation steps:
Tested pressure transducer 4 is installed on sectional fixture 7, the battery main switch in the rotation electric operation district 21, power light is bright, and panel computer 20 startups enter operation interface.Press motor start switch and pressurizing valve button, control motor 10 starts, and pressurizing valve 3 is in conducting state, and stop valve 8 is in cut-off state.Drive electromagnetic voltage adjusting valve 13 by boost button and decompression button, regulate the rated pressure output valve of pressure generation systems 26.When rated pressure output valve conformance with standard requires, on operation interface, carry out the setting of waveform, test specimen quantity, tube used for bottom pouring way amount, frequency, input cycle index, select then to start, testing machine starts, and tested pressure transducer 4 is carried out the pressure fluctuation test of program setting.When cycle index reached set point number, testing machine was out of service, and pressurizing valve 3 is in cut-off state.Press the pressure-release valve button, stop valve 8 is in conducting state, and pipeline 2 inner fluids flow back to fuel tank 22 through stop valve 8.After dismantling tested pressure transducer 4, press the tapping valve button, draining valve 29 is opened, and the fluid of test site 5 flows back to fuel tank 22 through leakage floss hole 31, liquid trap 28, draining valve 29 successively.
If in process of the test when occur leaking, level switch 30 is experienced the leakage in the liquid trap 28, sends signal, and it is bright to leak (warning) pilot lamp, and hummer is loud, testing machine is out of service; If when fuel tank 22 liquid levels were not enough, liquid level sensor 24 sent alerting signal, liquid level (warning) pilot lamp is bright, and hummer rings, and testing machine is out of service; When if test pressure surpasses set pressure 10%, standard pressure transducer 6 feedbacks are sent alerting signal, and superpressure (warning) pilot lamp is bright, and hummer rings, and testing machine is out of service; If when fuel tank 22 temperature surpassed 60 ℃, temperature sensor 25 sent alerting signal, overtemperature (warning) pilot lamp is bright, and hummer rings, and testing machine is out of service.When abnormal conditions occurring in the process of the test, press emergency stop switch, motor 10 stops, the testing machine outage.
Principle of work:
Fluid is regulated through the pressure of pressure regulator valve by the motor-driven variable output pump, forms specified upper limit pressure, and the servo surplus valve of the programmed control of panel computer carries out the control of waveform, frequency, force value, makes the pressure in the pressure piping meet the setting requirement.Pressurizing valve is opened, stop valve is closed, pressure forms corresponding fluctuation pressure with the variation of the servo surplus valve voltage of control in the pipeline, act on standard and the tested pressure transducer, when pressure does not meet setting value, by the standard pressure transducer signal feedback, adjust servo surplus valve driving voltage immediately, reach the match of high precision waveform and force value.When test number (TN) reached set point number, program was sent instruction and is stopped the motor operation, and pressurizing valve is closed, and pressure-release valve is opened, and the release of pipeline mesohigh fluid realizes safe dismounting.
Leakage alarm is experienced leakage by level switch and is sent signal and realize; Liquid level warning is experienced oil tank liquid level by liquid level sensor and is realized; Superpressure is reported to the police and is realized by the standard pressure transducer feedback pressure signal; Overtemperature alarm is experienced the fuel tank temperature by temperature sensor and is realized.When testing machine was reported to the police, program was out of service, and motor is out of service.
Claims (5)
1, a kind of high-efficiency high-pressure sensor test machine, it comprises that one has the base plate (23) of four castors (16), it is characterized in that: be connected with the rack (19) that forms the testing machine housing on the base plate (23) and be located at the interior pressure generation systems (26) of testing machine housing; Pressure generation systems (26) comprises the fuel tank (22) that is fixedly installed on the base plate (23), on fuel tank (22) sidewall, be respectively arranged with liquid level sensor (24) and temperature sensor (25), be disposed with motor (10) and variable output pump (11) on fuel tank (22) top, the pressure export of described variable output pump is connected with pipeline (2) by electromagnetic voltage adjusting valve (13), servo surplus valve (12), pipeline (2) is connected in parallel after three the tunnel, leads to the test site (5) that testing machine housing top keeps sealing; Conversion by bite type joint (9) is connected to three road sectional fixtures (7) respectively in test site (5), there are two to eight station is installed on every road sectional fixture (7), this installation station is equipped with a standard pressure transducer (6) and some tested pressure transducers (4), pressure entrance end polyphone pressurizing valve (3) in sectional fixture (7), pressure export end polyphone stop valve (8) at sectional fixture (7), three road pressure pipings are by behind the stop valve (8), be parallel to one the tunnel again, be connected to the leakage floss hole (31) of bottom, test site (5);
Liquid trap (28) is installed in leakage floss hole (31) lower end, dress level switch (30) in the liquid trap (28), and liquid trap (28) side connects draining valve (29), and draining valve (29) outlet is connected with fuel tank (22) by pipeline (2);
Safty shield (17) is installed on top, test site (5), and safty shield (17) middle part has inspection window (18);
Be inlaid with a panel computer (20) on the top of rack (19), close the following of panel computer (20) is electric operation district (21).
2, high-efficiency high-pressure sensor test machine according to claim 1 is characterized in that: also be symmetrically arranged with four dampings of being convenient to support and adjust parallels (15) below base plate (23).
3, high-efficiency high-pressure sensor test machine according to claim 1 is characterized in that: safty shield (17) supports by two air springs (32) and opens.
4, high-efficiency high-pressure sensor test machine according to claim 1 is characterized in that: inspection window (18) is inner with metal protection curtain (33).
5, high-efficiency high-pressure sensor test machine according to claim 1 is characterized in that: in the left and right sides of rack (19) fan (14) is housed also.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810230022A CN100588929C (en) | 2008-12-23 | 2008-12-23 | High efficiency high-pressure sensor testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810230022A CN100588929C (en) | 2008-12-23 | 2008-12-23 | High efficiency high-pressure sensor testing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101441124A CN101441124A (en) | 2009-05-27 |
| CN100588929C true CN100588929C (en) | 2010-02-10 |
Family
ID=40725656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810230022A Expired - Fee Related CN100588929C (en) | 2008-12-23 | 2008-12-23 | High efficiency high-pressure sensor testing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100588929C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103616130B (en) * | 2013-11-29 | 2015-12-02 | 宁波长壁流体动力科技有限公司 | Pressure transducer proving installation |
| CN107907316A (en) * | 2017-11-15 | 2018-04-13 | 潘绍兵 | A kind of valve pressure testing device |
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2008
- 2008-12-23 CN CN200810230022A patent/CN100588929C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101441124A (en) | 2009-05-27 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100210 Termination date: 20101223 |