CN208026562U - A kind of high-accuracy hydraulic dynamometer - Google Patents
A kind of high-accuracy hydraulic dynamometer Download PDFInfo
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- CN208026562U CN208026562U CN201820221222.XU CN201820221222U CN208026562U CN 208026562 U CN208026562 U CN 208026562U CN 201820221222 U CN201820221222 U CN 201820221222U CN 208026562 U CN208026562 U CN 208026562U
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Abstract
The utility model belongs to air tightness detection equipment technical field,More particularly to a kind of high-accuracy hydraulic dynamometer,Including hydraulic pressure output unit,Test pressure testing unit,Hydraulic pressure output unit includes water storage cylinder,The export pipeline drawn from water storage cylinder,Export pipeline draws connecting test pressure testing unit again after introducing the air pressure tank being arranged,Export pipeline on front side of air pressure tank is equipped with the output pressure valve by setting gradually,Water pump,The water inlet control mechanism that check valve is constituted,Water pump,Export pipeline between check valve is equipped with pressure regulation branch,The pressure regulation branch other end connects water storage cylinder,Pressure regulation branch road is equipped with branch pressure valve,Export pipeline on rear side of air pressure tank is equipped with pressure display instrument table,Water pump is connected with the frequency converter of control rotational frequency,Test pressure testing unit includes the pressure testing pipeline of multi-channel parallel,Pressure testing pipeline input terminal connects export pipeline,It is equipped with solenoid valve on per road test pressure pipeline,Pressure test pressure display instrument,Equipment operation is simple,Detection efficiency is high.
Description
Technical field
The utility model belongs to air tightness detection equipment technical field, and in particular to a kind of high-accuracy hydraulic dynamometer.
Background technology
According to《Recommendation-model constitution about Dangerous Goods Transport》,《IMDG CODE》,
GB19269-2009《Highway transportation Transport Packages of Dangerous Goods detects safety standard》,GB19270-2009《Waterway transportation dangerous cargo
Package test safety standard》,GB19359-2009《Railway transportation Transport Packages of Dangerous Goods examines safety standard》,GB19433-2009
《Air transport Transport Packages of Dangerous Goods detects safety standard》,GB19191-2008《Plastic tank》,GB/T325.1-2008《Packing container steel
Bucket part 1：Generic specifications》Standard regulation, need to be to packets such as quasi- canister, the plastic barrels (tank) for filling liquid hazardous cargo
Packaging container carries out hydraulic test, to examine whether the performance of plastics, canister packaging reaches standard requirement, to ensure chemical industry
The transportation safety of the especially dangerous chemical products of product.
More problems existing for existing detection device：First, domestic not ready-made test equipment, manufacturer is general
It is tested using water pump pressure supply, is shown by pressure gauge, manually control test chamber internal hydraulic pressure, precision and pressure value are unstable
It is fixed, influence test result；Second, test chamber can not be carried out due to being deformed after compression simply by water pump in test operation
Pressure compensation, the hydraulic pressure in test in test chamber are unable to reach testing requirements, and pressure value is difficult to control in pressure control
The speed of precision and injection pressure；Third, existing hydraulic dynamometer are mostly semiautomatic plant, if the people one of setting one class carries out
Detection, the labor intensity of employee is very big, and shipment is less efficient.In order to solve problem above, the patent No.
ZL201320695752.5 discloses a kind of hydraulic dynamometer, which adds firsts and seconds pressure in traditional detection device
Power regulator control system, two-stage system carry out pressure controlling by controller, realize and stablize pressure supply, improve test precision and accurate
Degree, but the equipment operation is complicated, working efficiency is not high.
Utility model content
Technical problem to be solved in the utility model is in view of the foregoing drawbacks, to provide a kind of high-accuracy hydraulic dynamometer,
Equipment operation is simple, and detection efficiency is high.
The technical solution that the utility model solves the use of its technical problem is as follows：
A kind of high-accuracy hydraulic dynamometer, including hydraulic pressure output unit, test pressure testing unit, the hydraulic pressure output unit
The export pipeline drawn including water storage cylinder, from water storage cylinder, the export pipeline draw connection again after introducing the air pressure tank being arranged
Pressure testing unit is tested, the export pipeline on front side of air pressure tank is equipped with to be made of output pressure valve, water pump, the check valve set gradually
Water inlet control mechanism, export pipeline between water pump, check valve is equipped with pressure regulation branch, and the pressure regulation branch other end connects water storage cylinder,
Pressure regulation branch road is equipped with branch pressure valve, and the export pipeline on rear side of air pressure tank is equipped with display export pipeline gross pressure, air pressure tank
The pressure display instrument table of hydraulic pressure, water pump are connected with the frequency converter of control rotational frequency, and test pressure testing unit includes multi-channel parallel
Pressure testing pipeline, pressure testing pipeline input terminal connect export pipeline, the electricity of control pressure testing pipeline break-make are equipped on every road test pressure pipeline
Magnet valve and the pressure test pressure display instrument for showing test pressure, the pressure testing pipeline connection on rear side of pressure test pressure display instrument are in parallel
Pressure testing circuit, release circuit, pressure testing circuit be equipped with pressure test pressure valve, release circuit be equipped with release pressure valve, whole structure
It makes simply, the pressure controlling on export pipeline is easy to operate, and pressure value visualization facilitates pressure controlling, greatly improves regulation and control
Efficiency and precision, multichannel pressure testing pipeline individually detect, and further improve the efficiency of detection.
Further, the external water supply mechanism being arranged of water storage cylinder connection.
Further, the air pressure tank is equipped with discharge outlet, draining detection mouth.
Further, the external feeder of air pressure tank connection.
Further, the high-accuracy hydraulic dynamometer further includes tester table, places the experiment container of test sample.
Further, the test line number is three tunnels.
The utility model has the beneficial effects that：Using the above scheme,
(1) it can have the function that adjustment and stable pressure testing system pressure by adding air pressure tank, using the present apparatus, hydraulic pressure
Ce Shi Ya≤0.5Mpa, setting pressure control stability ± 0.01Mpa, greatly improve the stability of pressure control；
(2) at the same realize the independent pressure testing in more than two circuits, pressure show, the process control of release, increase substantially
Detection efficiency；
(3) visuality for realizing pressure test, improves the accuracy of measurement.
Description of the drawings
Through the following detailed description taken in conjunction with the accompanying drawings, the utility model objects, features and advantages above-mentioned and other will
It becomes apparent.
Fig. 1 is a kind of structural schematic diagram of embodiment of the utility model.
Wherein：1 is water storage cylinder, and 2 be export pipeline, and 3 be air pressure tank, and 31 be air pressure tank pressure valve, and 32 be draining detection mouth,
33 be discharge outlet, and 34 be discharge pressure valve, and 4 be output pressure valve, and 5 be water pump, and 6 be check valve, and 7 be pressure regulation branch, and 71 be branch
Road pressure valve, 8 be pressure display instrument table, and 9 be frequency converter, and 10 be pressure testing pipeline, and 11 be solenoid valve, and 12 be pressure test pressure display instrument
Table, 13 be pressure testing circuit, and 131 be pressure test pressure valve, and 14 be release circuit, and 141 be release pressure valve.
Specific implementation mode
The utility model is described further below in conjunction with the accompanying drawings.
Embodiment 1：Referring to Fig.1, a kind of high-accuracy hydraulic dynamometer, including tester table, the experiment for placing test sample
Container, hydraulic pressure output unit, test pressure testing unit, experiment container are arranged outside tester table, and hydraulic pressure output unit includes storage
Water vat 1, the export pipeline 2 drawn from 1 bottom of water storage cylinder, export pipeline 2 are drawn again after introducing the air pressure tank 3 being arranged, efferent duct
From the output end connecting test pressure testing unit after the extraction of air pressure tank 3, air pressure tank is equipped with the water inlet of connection export pipeline, goes out line 3
The mouth of a river, the export pipeline 2 of 3 front side of air pressure tank is equipped with to be made of the output pressure valve 4, water pump 5, check valve 6 set gradually
Water inlet control mechanism, the export pipeline 2 between water pump 5, check valve 6 are additionally provided with pressure regulation branch 7, the other end connection of pressure regulation branch 7
Water storage cylinder 1, pressure regulation branch 7 are equipped with the branch pressure valve 71 of controlling brancher break-make and flow, the export pipeline of 3 rear side of air pressure tank
The 2 pressure display instrument tables 8 equipped with 2 gross pressure of display export pipeline, 3 hydraulic pressure of air pressure tank, pressure display instrument table 8 is using digitlization
LED instrument, hydraulic pressure detecting element is set on air pressure tank 3, and hydraulic pressure detecting element connection pressure display instrument table simultaneously directly displays gas
The hydraulic pressure value at tank 3, water pump 5 is pressed to be connected with the frequency converter 9 of control rotational frequency, water storage cylinder 1 connects water inlet pipe, and water inlet pipe is equipped with
Valve member is controlled, the water-filling into water storage cylinder ensures that water is sufficient in water storage cylinder, opens output pressure valve 4, starts water pump 5 to air pressure
Tank 3 supplies water, and when 5 water supply of water pump is excessive, the hydraulic pressure in air pressure tank, air pressure tank hydraulic pressure mistake are monitored by pressure display instrument table
Greatly, it opens branch pressure valve 71 to be shunted, so that part water is flowed back to by pressure regulation branch 7 into water storage cylinder 1, reduce water indirectly
The water yield of pump 5, check valve avoid flowing back, and improve safety, water inlet control mechanism, check valve 6, air pressure tank 3, frequency converter 9, pressure
Power display instrument 8 constitutes air pressure tank water pressure control system, and operation frequency converter 9 controls start and stop and the rotational frequency of water pump 5, into
And water supply of the water pump 5 to air pressure tank 3 is adjusted, and the hydraulic pressure in air pressure tank 3 depends on the water supply of water pump 5, pressure display instrument
Table 8 can initialization system test needed for pressure value, display air pressure tank 8 in hydraulic pressure, when show hydraulic pressure it is excessively high when, operate frequency converter 9
It reduces by 5 rotational frequency of water pump and drives air pressure tank decompression, until being stopped operation after pressure value needed for initialization system test, stablize air pressure
Hydraulic pressure in tank；When showing that hydraulic pressure is too low, operation frequency converter 9 improves 5 rotational frequency of water pump and drives air pressure tank boosting, until setting
It is stopped operation after location survey pressure testing force value, stablizes the hydraulic pressure in air pressure tank, the gross pressure of export pipeline can pass through air pressure tank Water pressure controlled
System processed, the cooperation of pressure regulation branch are adjusted, and in certain pressure limit value, mode can individually adjust in two, or cooperate
It adjusts, regulated efficiency is high, and the overall structure of pipeline is simple, easy to operate, greatly improves the efficiency of detection, digitizes LED's
Pressure display instrument meter pressure is directly visual, realizes the visuality of measurement data.
The top of air pressure tank 3 is equipped with air pressure tank pressure valve 31, and the top of air pressure tank 3 is equipped with draining detection mouth 32, air pressure tank 3
Bottom be equipped with discharge outlet 33, discharge pressure valve 34 is equipped at discharge outlet, test pressure testing unit includes the pressure testing pipeline of 3 tunnels parallel connection
10,10 input terminal of pressure testing pipeline connects export pipeline 2, and the electricity of 10 break-make of control pressure testing pipeline is equipped on every road test pressure pipeline 10
The pressure testing pipeline of magnet valve 11 and the pressure test pressure display instrument 12 for showing test pressure, 12 rear side of pressure test pressure display instrument connects
Pressure testing circuit 13 in parallel, release circuit 14 are connect, pressure testing circuit 13 is equipped with pressure test pressure valve 131, and release circuit 14 is equipped with
Release pressure valve 141, air pressure tank water pressure control system, pressure display control instrument table 12, pressure test pressure valve 131, unload solenoid valve 11
Pressure pressure valve 141, air pressure tank pressure valve 31, draining detection mouth 32, discharge pressure valve 34 constitute test specimen examination/release control system
It unites, after gross pressure regulation and control are stablized on export pipeline, the setting experiment pressure test pressure value of pressure test pressure display instrument 12, cooperation solenoid valve
11,3 pressure supply of pressure test pressure valve 131 and air pressure tank, to set test of the test pressure value completion to test specimen, experiment is completed
Release pressure valve 141, air pressure tank pressure valve 31, discharge pressure valve 34 are opened afterwards to test specimen release, and air pressure tank water passes through row
The mouth of a river is flowed out, and water is flowed out by release circuit in sample, pipeline, by draining detection mouth 32 and pressure test pressure display instrument
12 display pressure observe release situation, and release is convenient, and easy to operate, the machine is by water pump, frequency converter, air pressure tank, corresponding pressure
It detects instrument to constitute, provides required system hydraulic pressure by adjusting pump power frequency, it is respectively independent complete that three circuits can be divided into
It is shown at pressure testing, pressure, the process control of timing and automatically unloading, greatly improves the efficiency of detection, it can be either manually or by
The control system automatically unloading of tester table, air pressure tank have stable pressure testing system pressure to act on, and the machine hydraulic test Ya≤
0.5Mpa, setting pressure control stability ± 0.01Mpa, greatly improve detection efficiency, precision.
Embodiment 2：Referring to Fig.1, a kind of high-accuracy hydraulic dynamometer, including tester table, the experiment for placing test sample
Container, hydraulic pressure output unit, test pressure testing unit, experiment container are arranged outside tester table, and hydraulic pressure output unit includes storage
Water vat 1, the export pipeline 2 drawn from 1 bottom of water storage cylinder, export pipeline 2 are drawn again after introducing the air pressure tank 3 being arranged, efferent duct
From the output end connecting test pressure testing unit after the extraction of air pressure tank 3, air pressure tank is equipped with the water inlet of connection export pipeline, goes out line 3
The mouth of a river, the export pipeline 2 of 3 front side of air pressure tank is equipped with to be made of the output pressure valve 4, water pump 5, check valve 6 set gradually
Water inlet control mechanism, the export pipeline 2 between water pump 5, check valve 6 are additionally provided with pressure regulation branch 7, the other end connection of pressure regulation branch 7
Water storage cylinder 1, pressure regulation branch 7 are equipped with the branch pressure valve 71 of controlling brancher break-make and flow, the export pipeline of 3 rear side of air pressure tank
The 2 pressure display instrument tables 8 equipped with 2 gross pressure of display export pipeline, 3 hydraulic pressure of air pressure tank, pressure display instrument table 8 is using digitlization
LED instrument, hydraulic pressure detecting element is set on air pressure tank 3, and hydraulic pressure detecting element connection pressure display instrument table simultaneously directly displays gas
The hydraulic pressure value at tank 3, water pump 5 is pressed to be connected with the frequency converter 9 of control rotational frequency, water storage cylinder 1 connects water inlet pipe, and water inlet pipe is equipped with
Valve member is controlled, the water-filling into water storage cylinder ensures that water is sufficient in water storage cylinder, opens output pressure valve 4, starts water pump 5 to air pressure
Tank 3 supplies water, and when 5 water supply of water pump is excessive, the hydraulic pressure in air pressure tank, air pressure tank hydraulic pressure mistake are monitored by pressure display instrument table
Greatly, it opens branch pressure valve 71 to be shunted, so that part water is flowed back to by pressure regulation branch 7 into water storage cylinder 1, reduce water indirectly
The water yield of pump 5, check valve avoid flowing back, and improve safety, water inlet control mechanism, check valve 6, air pressure tank 3, frequency converter 9, pressure
Power display instrument 8 constitutes air pressure tank water pressure control system, and operation frequency converter 9 controls start and stop and the rotational frequency of water pump 5, into
And water supply of the water pump 5 to air pressure tank 3 is adjusted, and the hydraulic pressure in air pressure tank 3 depends on the water supply of water pump 5, pressure display instrument
Table 8 can initialization system test needed for pressure value, display air pressure tank 8 in hydraulic pressure, when show hydraulic pressure it is excessively high when, operate frequency converter 9
It reduces by 5 rotational frequency of water pump and drives air pressure tank decompression, until being stopped operation after pressure value needed for initialization system test, stablize air pressure
Hydraulic pressure in tank；When showing that hydraulic pressure is too low, operation frequency converter 9 improves 5 rotational frequency of water pump and drives air pressure tank boosting, until setting
It is stopped operation after location survey pressure testing force value, stablizes the hydraulic pressure in air pressure tank, the gross pressure of export pipeline can pass through air pressure tank Water pressure controlled
System processed, the cooperation of pressure regulation branch are adjusted, and in certain pressure limit value, mode can individually adjust in two, or cooperate
It adjusts, regulated efficiency is high, and the overall structure of pipeline is simple, easy to operate, greatly improves the efficiency of detection, digitizes LED's
Pressure display instrument meter pressure is directly visual, realizes that the visuality of measurement data, air pressure tank 3 connect external feeder, gas supply dress
It is air pump, air compressor to set, and also set up vent valve, by being filled and deflated by air pressure tank, the air pressure of pressure regulation air pressure tank, and pole
Ear realizes the adjustment to hydraulic pressure in air pressure tank, is engaged in the adjustment realized to hydraulic pressure on export pipeline, can expand present apparatus detection
Pressure limit, detection pressure limit is big, improves the using effect of the present apparatus, and by the cooperation of air pressure, realizes to the machine
The accurately and fast adjustment of hydraulic pressure.
The top of air pressure tank 3 is equipped with air pressure tank pressure valve 31, and the top of air pressure tank 3 is equipped with draining detection mouth 32, air pressure tank 3
Bottom be equipped with discharge outlet 33, discharge pressure valve 34 is equipped at discharge outlet, test pressure testing unit includes the pressure testing pipeline of 3 tunnels parallel connection
10,10 input terminal of pressure testing pipeline connects export pipeline 2, and the electricity of 10 break-make of control pressure testing pipeline is equipped on every road test pressure pipeline 10
The pressure testing pipeline of magnet valve 11 and the pressure test pressure display instrument 12 for showing test pressure, 12 rear side of pressure test pressure display instrument connects
Pressure testing circuit 13 in parallel, release circuit 14 are connect, pressure testing circuit 13 is equipped with pressure test pressure valve 131, and release circuit 14 is equipped with
Release pressure valve 141, air pressure tank water pressure control system, pressure display control instrument table 12, pressure test pressure valve 131, unload solenoid valve 11
Pressure pressure valve 141, air pressure tank pressure valve 31, draining detection mouth 32, discharge pressure valve 34 constitute test specimen examination/release control system
It unites, after gross pressure regulation and control are stablized on export pipeline, the setting experiment pressure test pressure value of pressure test pressure display instrument 12, cooperation solenoid valve
11,3 pressure supply of pressure test pressure valve 131 and air pressure tank, to set test of the test pressure value completion to test specimen, experiment is completed
Release pressure valve 141, air pressure tank pressure valve 31, discharge pressure valve 34 are opened afterwards to test specimen release, and air pressure tank water passes through row
The mouth of a river is flowed out, and water is flowed out by release circuit in sample, pipeline, by draining detection mouth 32 and pressure test pressure display instrument
12 display pressure observe release situation, and release is convenient, easy to operate.
The above is only the preferred embodiment of the utility model, not does limit in any form to the utility model
It makes, to any simple modification, equivalent variations made by above example in every foundation the technical essence of the utility model, falls
Enter within the scope of protection of the utility model.
Claims (6)
1. a kind of high-accuracy hydraulic dynamometer, including hydraulic pressure output unit, test pressure testing unit, it is characterised in that：The liquid
Pressure output unit includes water storage cylinder, the export pipeline drawn from water storage cylinder, after the export pipeline introduces the air pressure tank being arranged
Connecting test pressure testing unit is drawn again,
Export pipeline on front side of air pressure tank be equipped with by output pressure valve, water pump, the check valve set gradually constitute into water control
Mechanism processed, the export pipeline between water pump, check valve are equipped with pressure regulation branch, and the pressure regulation branch other end connects water storage cylinder, pressure regulation branch
It is equipped with branch pressure valve, the export pipeline on rear side of air pressure tank is equipped with display export pipeline gross pressure, the pressure of air pressure tank hydraulic pressure
Power display instrument, water pump are connected with the frequency converter of control rotational frequency,
Test pressure testing unit includes the pressure testing pipeline of multi-channel parallel, and pressure testing pipeline input terminal connects export pipeline, per road test pressure pipe
It is equipped with the solenoid valve of control pressure testing pipeline break-make on line and shows the pressure test pressure display instrument of test pressure, pressure test pressure
Pressure testing circuit, the release circuit of pressure testing pipeline connection parallel connection on rear side of display instrument, pressure testing circuit are equipped with pressure test pressure valve, unload
Crimping road is equipped with release pressure valve.
2. a kind of high-accuracy hydraulic dynamometer according to claim 1, it is characterised in that：The water storage cylinder connection is external
The water supply mechanism of setting.
3. a kind of high-accuracy hydraulic dynamometer according to claim 1, it is characterised in that：The air pressure tank is equipped with draining
Mouth, draining detection mouth.
4. a kind of high-accuracy hydraulic dynamometer according to claim 1, it is characterised in that：The air pressure tank connection is external
Feeder.
5. a kind of high-accuracy hydraulic dynamometer according to claim 1, it is characterised in that：The high-accuracy hydraulic dynamometer
Further include tester table, place the experiment container of test sample.
6. a kind of high-accuracy hydraulic dynamometer according to claim 1, it is characterised in that：The pressure testing pipeline number is
Three tunnels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820221222.XU CN208026562U (en) | 2018-02-07 | 2018-02-07 | A kind of high-accuracy hydraulic dynamometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820221222.XU CN208026562U (en) | 2018-02-07 | 2018-02-07 | A kind of high-accuracy hydraulic dynamometer |
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| Publication Number | Publication Date |
|---|---|
| CN208026562U true CN208026562U (en) | 2018-10-30 |
Family
ID=63903988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201820221222.XU Active CN208026562U (en) | 2018-02-07 | 2018-02-07 | A kind of high-accuracy hydraulic dynamometer |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108254260A (en) * | 2018-02-07 | 2018-07-06 | 常州进出口工业及消费品安全检测中心 | A kind of high-accuracy hydraulic dynamometer |
| CN109870363A (en) * | 2019-01-30 | 2019-06-11 | 重庆瑞力比燃气设备有限责任公司 | A kind of pressure-measuring method and pressure testing system |
-
2018
- 2018-02-07 CN CN201820221222.XU patent/CN208026562U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108254260A (en) * | 2018-02-07 | 2018-07-06 | 常州进出口工业及消费品安全检测中心 | A kind of high-accuracy hydraulic dynamometer |
| CN109870363A (en) * | 2019-01-30 | 2019-06-11 | 重庆瑞力比燃气设备有限责任公司 | A kind of pressure-measuring method and pressure testing system |
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