CN104514770B - A kind of micro-pressure calibration equipment of Hydraulic Elements - Google Patents
A kind of micro-pressure calibration equipment of Hydraulic Elements Download PDFInfo
- Publication number
- CN104514770B CN104514770B CN201310460175.6A CN201310460175A CN104514770B CN 104514770 B CN104514770 B CN 104514770B CN 201310460175 A CN201310460175 A CN 201310460175A CN 104514770 B CN104514770 B CN 104514770B
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- Prior art keywords
- oil
- pressure
- fluid pressure
- hydraulic elements
- pressure line
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
- F15B19/002—Calibrating
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
A kind of micro-pressure calibration equipment of Hydraulic Elements, is related to the micro-pressure calibration technology field of Hydraulic Elements；The structure composition of described device is：Fuel tank oil-out connects minute-pressure electric-motor pump by fluid pressure line, the minute-pressure electric-motor pump connects out oil strainer by fluid pressure line, it is described go out oil strainer flow speed control valve is connected by fluid pressure line, the flow speed control valve connects gas liquid two purpose pressure-reducing valve by fluid pressure line, the gas liquid two purpose pressure-reducing valve connects oil out port by fluid pressure line, one piece of pressure gauge is connected between the pressure-reducing valve and oil out port, the oil inlet of the tested Hydraulic Elements of oil out port connection, it is detected the oil return interface that Hydraulic Elements oil-out connects the present apparatus, the oil return interface is connected by fluid pressure line and connects fuel tank assembly through return filter；The use of described device, reduces the micro-pressure verification labor intensity of Hydraulic Elements, improves checking precision, can meet 0 to the pressure checking between 0.5MPa.
Description
Technical field
The invention belongs to the micro-pressure calibration technology field of Hydraulic Elements, it is related to a kind of micro-pressure verification dress of Hydraulic Elements
Put.
Background technology
Helicopter hydraulic system element needs to carry out several liquid of pressure checking, such as certain type machine hydraulic system before installation
The verification pressure very little for pressing element to need, in 5KPa between 25KPa, the Hydraulic Elements have oil inlet A and oil-out B.It is logical
The pressure checking device that is often used as shown in figure 1, using manual pump 1 as power source, hydraulic oil is pumped out from fuel tank assembly 2,
The oil-out 7 of the present apparatus, the oil-out are connected through going out the elements such as oil strainer 3, check valve 4, flow speed control valve 5 by fluid pressure line
The tested oil inlet A of Hydraulic Elements 20 of 7 connections, is tested the oil-out B of Hydraulic Elements 20 and is connected with present apparatus oil return opening 8, the oil return
Mouth 8 passes through the oil return opening that fluid pressure line connects fuel tank assembly 2 through return filter 9.Connect between the flow speed control valve 5 and oil-out 7
Connect one piece of pressure gauge 6.The rocking arm of manually-operated pump 1 is suppressed during verification, while adjusting flow speed control valve 5, observes pressure gauge 6, root
Show that pressure value constantly adjusts manual pump and suppresses speed and strength according to pressure gauge 6, the verification pressure needed for reaching.Because of required school
Test pressure small, required precision is high, want to waste time and energy during verification pressure needed for reaching by this device.
The content of the invention
The purpose of the present invention is：There is provided a kind of micro-pressure calibration equipment of Hydraulic Elements so that the micro-pressure of Hydraulic Elements
Verification is more time saving and energy saving, and checking precision is higher.
The technical scheme is that：A kind of micro-pressure calibration equipment of Hydraulic Elements, including：Fuel tank assembly, the oil
The oil-out of box assembly connects minute-pressure electric-motor pump by fluid pressure line, and the minute-pressure electric-motor pump connects fuel-displaced mistake by fluid pressure line
Filter, it is described go out oil strainer by fluid pressure line connect check valve, the check valve pass through fluid pressure line connect flow speed control valve, institute
State flow speed control valve and pressure-reducing valve is connected by fluid pressure line, the pressure-reducing valve connects oil out port, the pressure-reducing valve by fluid pressure line
One piece of pressure gauge is connected between oil out port, the oil inlet A of the tested Hydraulic Elements of oil out port connection is tested hydraulic pressure member
The oil return interface of the part oil-out B connection present apparatus, the oil return interface is connected by fluid pressure line and connects oil through return filter
Box assembly.
It is an advantage of the invention that：By the use of apparatus of the present invention, the work for reducing the verification of Hydraulic Elements micro-pressure is strong
Degree, improves the checking precision of micro-pressure verification.
Brief description of the drawings
Fig. 1 is existing Hydraulic Elements micro-pressure calibration technology schematic diagram.
Fig. 2 is a kind of micro-pressure calibration equipment schematic diagram of Hydraulic Elements of the invention.
Embodiment
The present invention is described in further details below.Referring to Fig. 2,
The present invention structure composition be：Fuel tank assembly 10, the oil-out of the fuel tank assembly 10 is connected by fluid pressure line
Minute-pressure electric-motor pump 11, the minute-pressure electric-motor pump 11 connects out oil strainer 12 by fluid pressure line, it is described go out oil strainer 12 lead to
Fluid pressure line connection check valve 13 is crossed, the check valve 13 connects flow speed control valve 14 by fluid pressure line, and the flow speed control valve 14 passes through
Fluid pressure line connects pressure-reducing valve 15, and the pressure-reducing valve 15 connects oil out port 17 by fluid pressure line, the pressure-reducing valve 15 and gone out
One piece of pressure gauge 16, the oil inlet A of the tested Hydraulic Elements 20 of the connection of oil out port 17, test solution are connected between oily interface 17
The oil return interface 18 of the oil-out B connection present apparatus of element 20 is pressed, the oil return interface 18 is connected through oil return by fluid pressure line
Filter 19 connects fuel tank assembly 10.
Exemplified by verifying pressure for 20KPa Hydraulic Elements, first by the Hydraulic Elements oil inlet A and the hydraulic pressure of the present invention
The oil out port 17 of element micro-pressure calibration equipment is connected, and Hydraulic Elements oil return opening B is connected with the oil return interface 18 of the present invention,
Then button starts minute-pressure electric-motor pump 11 and continues output pressure, adjusts flow speed control valve 14, is then adjusted by the knob of pressure-reducing valve 15
Charge oil pressure, while pressure gauge 16 is observed, until output verification pressure reaches designated value for it.Due to without manual voltage supply, adjusting
Seamless power is that, by the flow speed control valve 14 and the knob of pressure-reducing valve 15 on one piece of panel, each turn knobs can be realized very
Small pressure is increasedd or decreased, and this make it that pressure adjustment is more time saving and energy saving, and checking precision is higher.
Claims (1)
1. a kind of micro-pressure calibration equipment of Hydraulic Elements, it is characterised in that：Including：Fuel tank assembly（10）, the fuel tank assembly
（10）Oil-out pass through fluid pressure line connect minute-pressure electric-motor pump（11）, the minute-pressure electric-motor pump（11）Connected by fluid pressure line
Go out oil strainer（12）, it is described go out oil strainer（12）Check valve is connected by fluid pressure line（13）, the check valve（13）It is logical
Cross fluid pressure line connection flow speed control valve（14）, the flow speed control valve（14）Pressure-reducing valve is connected by fluid pressure line（15）, the pressure-reducing valve
（15）Oil out port is connected by fluid pressure line（17）, the pressure-reducing valve（15）And oil out port（17）Between connect one block of pressure
Table（16）, the oil out port（17）The oil inlet A of the tested Hydraulic Elements of connection, tested Hydraulic Elements oil-out B connect this dress
The oil return interface put（18）, the oil return interface（18）By fluid pressure line connection through return filter（19）Connect fuel tank assembly
（10）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310460175.6A CN104514770B (en) | 2013-09-30 | 2013-09-30 | A kind of micro-pressure calibration equipment of Hydraulic Elements |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310460175.6A CN104514770B (en) | 2013-09-30 | 2013-09-30 | A kind of micro-pressure calibration equipment of Hydraulic Elements |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104514770A CN104514770A (en) | 2015-04-15 |
| CN104514770B true CN104514770B (en) | 2017-09-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310460175.6A Active CN104514770B (en) | 2013-09-30 | 2013-09-30 | A kind of micro-pressure calibration equipment of Hydraulic Elements |
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| Country | Link |
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| CN (1) | CN104514770B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111071476B (en) * | 2019-12-25 | 2021-08-27 | 国营芜湖机械厂 | Method for checking tightness and working performance of hydraulic system in assembly stage |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201265573Y (en) * | 2008-08-26 | 2009-07-01 | 比亚迪股份有限公司 | Test bed for hydraulic cylinder |
| CN203081905U (en) * | 2013-01-30 | 2013-07-24 | 上海航新航宇机械技术有限公司 | Test bed of valve actuator cylinder |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1500133A (en) * | 1975-12-30 | 1978-02-08 | Secr Defence | Hydraulic test equipment |
| RU2011038C1 (en) * | 1991-04-08 | 1994-04-15 | Першин Виктор Алексеевич | Bench for testing members of hydraulic drive |
| CN1219160C (en) * | 2002-11-13 | 2005-09-14 | 太原理工大学 | Hydraulic arrester with capabilities of speed adjustment and soft braking |
| CN101813109B (en) * | 2010-04-02 | 2012-03-21 | 山东电力研究院 | Servo valve test system |
| CN102720710B (en) * | 2012-06-26 | 2015-09-16 | 中联重科股份有限公司 | The controlling method of hydraulic system, hydraulic system and engineering machinery |
-
2013
- 2013-09-30 CN CN201310460175.6A patent/CN104514770B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201265573Y (en) * | 2008-08-26 | 2009-07-01 | 比亚迪股份有限公司 | Test bed for hydraulic cylinder |
| CN203081905U (en) * | 2013-01-30 | 2013-07-24 | 上海航新航宇机械技术有限公司 | Test bed of valve actuator cylinder |
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| CN104514770A (en) | 2015-04-15 |
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