CN109253131A - Governor valve test macro and test method - Google Patents
Governor valve test macro and test method Download PDFInfo
- Publication number
- CN109253131A CN109253131A CN201811178482.4A CN201811178482A CN109253131A CN 109253131 A CN109253131 A CN 109253131A CN 201811178482 A CN201811178482 A CN 201811178482A CN 109253131 A CN109253131 A CN 109253131A
- Authority
- CN
- China
- Prior art keywords
- valve
- governor valve
- governor
- pressure
- test
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Measuring Volume Flow (AREA)
Abstract
The present invention relates to governor valve detection technique field, providing a kind of governor valve test macro and test method, the governor valve test macro includes: fuel tank, main pump, the first overflow valve, solenoid directional control valve and governor valve；Main pump input terminal is connected with fuel tank, main pump output end is connected with the P of solenoid directional control valve mouth, the A mouth of solenoid directional control valve is connected by the first test branch with the oil inlet of governor valve, the oil outlet of governor valve is connected by the second test branch with the B of solenoid directional control valve mouth, the T mouth of solenoid directional control valve is connected with the first overflow valve input terminal, and the first overflow valve output end is connected with fuel tank.Changeable flow and variable pressure may be implemented in test for the governor valve test macro, and measurement content includes governor valve inlet pressure, oil outlet pressure, governor valve flow, oil inlet and outlet pressure difference, and test content is abundant；Governor valve steady-state pressure differentials-discharge characteristic, real-time speed limit discharge characteristic and instantaneous speed limit discharge characteristic can be tested.
Description
Technical field
The present invention relates to governor valve detection technique fields, more particularly to a kind of governor valve test macro and test method.
Background technique
Governor valve is chiefly used in forklift hydraulic system, and effect is that the speed that limitation pallet fork declines and reduction forklift lifting are hydraulic
The hydraulic shock that cylinder is formed in piston stroke end, to guarantee safety.
Governor valve performance test mainly includes steady-state pressure differentials-flow rate test, the test of real-time speed limit discharge characteristic and instantaneous limit
The test of fast discharge characteristic, this be measure the major parameter of speed limit valve performance, but there is presently no relative test macro and
Test method.
Summary of the invention
(1) technical problems to be solved
The object of the present invention is to provide a kind of governor valve test macro and test methods, it is intended at least solution the prior art or
One of technical problem present in the relevant technologies.
(2) technical solution
In order to solve the above-mentioned technical problem, in a first aspect, the present invention provides a kind of governor valve test macro, comprising: fuel tank,
Main pump, the first overflow valve, solenoid directional control valve and governor valve；
The main pump input terminal is connected with the fuel tank, the P mouth phase of the main pump output end and the solenoid directional control valve
The A mouth of connection, the solenoid directional control valve is connected by the first test branch with the oil inlet of the governor valve, the governor valve
Oil outlet by second test branch be connected with the B of solenoid directional control valve mouth, the T mouth of the solenoid directional control valve with it is described
First overflow valve input terminal is connected, and the first overflow valve output end is connected with the fuel tank.
Wherein, the governor valve test macro further includes the cooling cycle filtration system being connected with the fuel tank；It is described
Cooling cycle filtration system includes the circulating pump, filter and cooler being sequentially communicated.
Wherein, the governor valve test macro further includes control pump and the second overflow valve；The control pump input terminal and institute
Fuel tank is stated to be connected, the control pump output terminal be connected with the main pump control terminal after with the second overflow valve input terminal phase
Connection, the second overflow valve output end are connected with the fuel tank.
Wherein, the first test branch includes first pressure gauge, first pressure sensor and the first high-pressure ball valve；It is described
The connection of the A of the first end of first high-pressure ball valve and solenoid directional control valve mouth, the first pressure gauge, first pressure sensing
The oil inlet of device and the governor valve is connected to the second end of first high-pressure ball valve.
Wherein, the second test branch includes second pressure gauge, second pressure sensor, the second high-pressure ball valve and stream
Meter；The first end of the flowmeter is connect with the B of solenoid directional control valve mouth, the second end of the flowmeter and described second
The first end of high-pressure ball valve connects, the oil outlet of the second pressure gauge, the second pressure sensor and the governor valve
It is connected to the second end of second high-pressure ball valve.
Wherein, the governor valve test macro further includes air cleaner；The air cleaner is connected with the fuel tank
It is logical, for filtering out the dust debris in air.
Wherein, the governor valve test macro further includes governor valve mounting blocks, be provided on the governor valve mounting blocks with
The compatible governor valve mounting hole of the governor valve, fuel feed hole and oil outlet.
Second aspect, the present invention provide a kind of test method using governor valve test macro described above, comprising:
The solenoid directional control valve left position obtains electric, adjusts the main pump flow, obtains the governor valve oil inlet and outlet first and presses
The through-flow flow of the poor and described governor valve first.
Wherein, the test method further include: the right position of solenoid directional control valve obtains electric, adjusts the main pump flow and described
Governor valve inlet pressure adjusts the governor valve oil outlet pressure, obtains the through-flow flow of the governor valve second to steady state value
With second pressure difference of governor valve oil inlet and outlet.
Wherein, the test method further include: the solenoid directional control valve left position obtains electric, adjusts the main pump flow to constant
Value, increases the governor valve oil outlet pressure, obtains the through-flow flow of the governor valve third and the governor valve oil outlet pressure.
(3) beneficial effect
Compared with prior art, the invention has the following advantages that
A kind of governor valve test macro and test method provided by the invention, the governor valve test macro can be in test
Realize changeable flow and variable pressure, measurement content include governor valve inlet pressure, oil outlet pressure, governor valve flow, into
Oil outlet pressure difference, test content are abundant；Governor valve actual condition can be simulated, so as to test governor valve steady-state pressure differentials-stream
Flow characteristic, real-time speed limit discharge characteristic and instantaneous speed limit discharge characteristic.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of governor valve test macro of the embodiment of the present invention；
Fig. 2 is the structural schematic diagram of governor valve mounting blocks in the embodiment of the present invention；
In figure: 1- fuel tank；2- main pump；3- control pump；4- solenoid directional control valve；5- flowmeter；The second high-pressure ball valve of 6-；7-
One high-pressure ball valve；8- first pressure sensor；9- first pressure gauge；10- second pressure gauge；11- second pressure sensor；12-
First overflow valve；The second overflow valve of 13-；14- circulating pump；15- filter；16- cooler；17- temperature sensor；18- air
Filter；19- liquidometer；20- electric heater；21- fuel outlet valve；22- governor valve；23- governor valve mounting hole；The first technique of 24-
Hole；25- oil outlet；26- fuel feed hole；The second fabrication hole of 27-；28- third overflow valve.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiments of the present invention will be described in further detail.Following instance
For illustrating the present invention, but it is not intended to limit the scope of the invention.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on the figure or
Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the present invention, the meaning of " plurality " is at least two, such as two, three
It is a etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected or can communicate each other；It can be directly connected, can also indirectly connected through an intermediary, it can be with
It is the interaction relationship of the connection or two elements inside two elements, unless otherwise restricted clearly.For this field
For those of ordinary skill, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
Fig. 1 is a kind of structural schematic diagram of governor valve test macro of the embodiment of the present invention, as shown in Figure 1, comprising: fuel tank 1,
Main pump 2, the first overflow valve 12, solenoid directional control valve 4 and governor valve 22；
The input terminal of main pump 2 is connected with fuel tank 1, and the output end of main pump 2 is connected with the P of solenoid directional control valve 4 mouth, electromagnetism
The A mouth of reversal valve 4 is connected by the first test branch with the oil inlet of governor valve 22, and the oil outlet of governor valve 22 passes through second
Test branch is connected with the B of solenoid directional control valve 4 mouth, and the T mouth of solenoid directional control valve 4 is connected with 12 input terminal of the first overflow valve,
First overflow valve, 12 output end is connected with fuel tank 1.
In the present embodiment, solenoid directional control valve 4 is used to control the oil liquid flow direction of governor valve.1 lower part of fuel tank is equipped with fuel outlet valve
21, electric heater 20, liquidometer 19, temperature sensor 17 and air cleaner 18, these hydraulic services are mainly to speed limit
The working condition of valve test system plays a part of monitoring.Liquidometer 19 uses magnetic turning plate formula liquidometer, floats in the conduit of lower part
Son is connected by connecting rod with floating ball magnetic in the main pipe of top, and when liquid level changes, floating ball drives magnet steel upper and lower in main pipe
Movement drives the white turned column of display unit dividend to spin upside down, and liquid level is shown on panel.Liquidometer 19 is mounted on fuel tank by master
Side is pumped, the magnetic sheet overturn on liquidometer 19 is used to observe the liquid level in fuel tank, and three relays are for remotely controlling.The speed limit
Valve test system designs three liquid levels: low Low Level, low level and a high position.When liquid level is higher than a high position in fuel tank 1, touch screen interface is aobvious
Show that sending is corresponding and promote simultaneously alarm equipment alarm, staff is reminded to stop refueling into fuel tank；When in fuel tank liquid level be lower than low level,
Then touch screen interface has corresponding promotion and alarm equipment alarm, promotes staff and needs the repairing into fuel tank, when liquid level in fuel tank
Lower than low Low Level, then touch screen interface has corresponding promotion, same to alarm, and main pump motor to shut down, and prevents main pump from damaging.
Temperature sensor 17 sets 15 DEG C, 50 DEG C, 60 DEG C, and when oil liquid temperature is lower than 15 DEG C, main pump stops working, electric heating
Device 20 starts；When temperature reaches 10 DEG C, main pump work, electric heater 20 keeps work, heats to oil liquid；When temperature reaches 15
DEG C, electric heater 20 stops working, main pump work；When temperature reaches 50 DEG C, cooling device starting is cold when temperature is lower than 50 DEG C
But device stops working, main pump work；When temperature is greater than 60 DEG C, main pump stops working, circulating cooling system work.Air-filtering
Device 18 communicates fuel tank with atmosphere, filters out the sundries in air.The greasy dirt in fuel tank can be exhausted by opening fuel outlet valve 21.
In the present embodiment, cooling cycle filtration system includes the circulating pump 14 being sequentially communicated, filter 15 and cooling
Device 16.Cold filtration system is used to filter out the impurity in oil liquid, while passing through cooler in case outer circulation to the oil liquid in fuel tank
Oil liquid in fuel tank is cooled down.Mainly there are a three screw pump, a fine filter and a cooler group in the part
At.
Three screw pump start and stop are controlled on station by operator, and filter is filtered oil liquid, are had on fine filter
Differential pressure transmitter device, when filter core blocks, spool is changed in signalling generator alarm, promotion.The start and stop of cooler are controlled by temperature sensor, simultaneously
In order to prevent before main pump starting, oil liquid temperature is more than 60 DEG C, therefore is specially provided with and selects manually with automatic control.It manually controls
It can the start and stop on station under mode.When normal work, electromagnetic water valve is opened, and oil liquid is through cooling oil return box, when cooler is examined
It repairs or when other reasons do not work, closes electromagnetic water valve.
In the present embodiment, main pump is proportioning pump, pumps upper proportional direction valve input signal change proportioning pump row by adjusting
Amount.Wherein, governor valve test macro further includes third overflow valve 28, and the input terminal of third overflow valve 28 is connected with main pump output end
It connects, the output end of third overflow valve 28 is connected with the fuel tank.Third overflow valve 28 is proportional pressure control valve, is used for control system
Pressure, be installed on pressure regulator valve it is fast on, proportional overflow valve control signal be 0V when, main pump off-load.Main pump outlet maximum working pressure (MWP)
For 31.5MPa.
Governor valve steady-state pressure differentials-flow rate test: starting main pump system and the cooling cooling system of circulating filtration, to data test
System is reset, and main pump system pressure and flow is adjusted, until meeting test requirements document；Switching solenoid directional control valve left position obtains electric, adjusting
Main pump system flow obtains governor valve oil inlet and the first pressure difference of oil outlet and the through-flow flow of governor valve first.
The test of governor valve real-time speed limit discharge characteristic starts main pump system and the cooling cooling system of circulating filtration, to data
Test macro is reset, and main pump system pressure and flow is adjusted, until meeting test requirements document；Switching the right position of solenoid directional control valve obtain it is electric,
Main pump system flow and governor valve inlet pressure are adjusted to steady state value, adjusts governor valve oil outlet pressure, obtains governor valve the
Two through-flow flows and governor valve oil inlet and the second pressure difference of oil outlet.
The instantaneous speed limit discharge characteristic test of governor valve, starts main pump system and the cooling cooling system of circulating filtration, to data
Test macro is reset, and main pump system pressure and flow is adjusted, until meeting test requirements document；Switching solenoid directional control valve left position obtain it is electric,
Main pump system flow is adjusted to steady state value, quickly increases governor valve oil outlet pressure, obtains the through-flow flow of governor valve third and limit
Fast valve oil outlet pressure.
In the present embodiment, which may be implemented changeable flow and variable pressure in test, measure
Content includes governor valve inlet pressure, oil outlet pressure, governor valve flow, oil inlet and outlet pressure difference, and test content is abundant；It can be with
Governor valve actual condition is simulated, so as to test governor valve steady-state pressure differentials-discharge characteristic, real-time speed limit discharge characteristic and instantaneous
Speed limit discharge characteristic.
In addition, according to an embodiment of the invention, governor valve test macro further includes control pump 3 and the second overflow valve 13；
Control 3 input terminals of pump are connected with fuel tank 1, and control 3 output ends of pump overflow after being connected with 2 control terminal of main pump with second
Stream 13 input terminal of valve is connected, and 13 output end of the second overflow valve is connected with fuel tank 1.
In the present embodiment, control pump 3 is for providing control oil for main pump 2.
In addition, according to an embodiment of the invention, the first test branch includes first pressure gauge 9,8 and of first pressure sensor
First high-pressure ball valve 7；The first end of first high-pressure ball valve 7 and the A mouth connection of solenoid directional control valve, first pressure gauge 9, first pressure
The oil inlet of sensor 8 and governor valve is connected to the second end of the first high-pressure ball valve 7.
In the present embodiment, the first high-pressure ball valve 7 is for opening and closing the first test branch.
In addition, according to an embodiment of the invention, the second test branch includes second pressure gauge 10, second pressure sensor
11, the second high-pressure ball valve 6 and flowmeter 5；
The first end of flowmeter 5 and the B mouth of solenoid directional control valve connect, the second end of flowmeter 5 and the second high-pressure ball valve 6
First end connection, the oil outlet of second pressure gauge 10, second pressure sensor 11 and governor valve with the second high-pressure ball valve 6
Second end connection.
In the present embodiment, flow of the flowmeter for real-time measurement disengaging governor valve.
In addition, the governor valve is pacified according to an embodiment of the invention, governor valve test macro further includes governor valve mounting blocks
Governor valve mounting hole 23 compatible with the governor valve, fuel feed hole 26 and oil outlet 25 are provided on dress block.
Fig. 2 is the structural schematic diagram of governor valve mounting blocks in the embodiment of the present invention, as shown in Fig. 2, on governor valve mounting blocks
It is additionally provided with the first fabrication hole 24 and the second fabrication hole 27, speed limit may be implemented by the first fabrication hole 24 and the second fabrication hole 27
The installation of valve mounting blocks is fixed.Fuel feed hole 26 on governor valve mounting blocks is connected with the oil inlet of governor valve, governor valve installation
Oil outlet 25 on block is connected with the oil outlet of governor valve.Governor valve is mounted on governor valve mounting blocks, can be with strict guarantee
The leakproofness of its end face, when carrying out testing experiment, situations such as will not leaking, influences test result, high reliablity.
The embodiment of the present invention provides a kind of test method using above-mentioned governor valve test macro, including governor valve stable state pressure
Difference-flow rate test: solenoid directional control valve left position obtains electric, adjusting main pump flow, acquisition the first pressure difference of governor valve oil inlet and outlet and speed limit
The through-flow flow of valve first.
In the present embodiment, the oil liquid in fuel tank successively passes through the A of main pump, the P mouth of solenoid directional control valve 4, solenoid directional control valve 4
Mouth, the first test branch, governor valve, the second test branch, the B mouth of solenoid directional control valve 4, the T mouth of solenoid directional control valve 4, first are overflow
Stream valve 12 is eventually returned to fuel tank.
Wherein, the through-flow flow of governor valve first is obtained by the flowmeter in the second test branch, passes through the first test branch
The second pressure gauge in first pressure gauge and the second test branch in road obtains the first pressure difference of governor valve oil inlet and outlet.
In addition, according to an embodiment of the invention, the test method further includes the test of governor valve real-time speed limit discharge characteristic:
The right position of solenoid directional control valve obtains electric, adjusts main pump flow and governor valve inlet pressure to steady state value, adjusts governor valve oil outlet pressure
Power obtains the through-flow flow of governor valve second and the second pressure difference of governor valve oil inlet and outlet.
In the present embodiment, the oil liquid in fuel tank successively passes through the B of main pump, the P mouth of solenoid directional control valve 4, solenoid directional control valve 4
Mouth, the second test branch, governor valve, the first test branch, the A mouth of solenoid directional control valve 4, the T mouth of solenoid directional control valve 4, first are overflow
Stream valve 12 is eventually returned to fuel tank.
Wherein, the through-flow flow of governor valve second is obtained by the flowmeter in the second test branch, passes through the first test branch
The second pressure gauge in first pressure gauge and the second test branch in road obtains the second pressure difference of governor valve oil inlet and outlet.
In addition, according to an embodiment of the invention, the test method further includes the instantaneous speed limit discharge characteristic test of governor valve:
Solenoid directional control valve left position obtains electric, adjusting main pump flow to steady state value, increases governor valve oil outlet pressure, and acquisition governor valve third is logical
Flow flow and governor valve oil outlet pressure.
In the present embodiment, the oil liquid in fuel tank successively passes through the A of main pump, the P mouth of solenoid directional control valve 4, solenoid directional control valve 4
Mouth, the first test branch, governor valve, the second test branch, the B mouth of solenoid directional control valve 4, the T mouth of solenoid directional control valve 4, first are overflow
Stream valve 12 is eventually returned to fuel tank.
Wherein, the through-flow flow of governor valve third is obtained by the flowmeter in the second test branch, passes through the second test branch
Second pressure gauge in road obtains governor valve oil outlet pressure.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of governor valve test macro characterized by comprising fuel tank, main pump, the first overflow valve, solenoid directional control valve and limit
Fast valve；
The main pump input terminal is connected with the fuel tank, and the main pump output end is connected with the P of solenoid directional control valve mouth,
The A mouth of the solenoid directional control valve is connected by the first test branch with the oil inlet of the governor valve, and the governor valve goes out
Hydraulic fluid port is connected by the second test branch with the B of solenoid directional control valve mouth, the T mouth and described first of the solenoid directional control valve
Overflow valve input terminal is connected, and the first overflow valve output end is connected with the fuel tank.
2. governor valve test macro as described in claim 1, which is characterized in that the governor valve test macro further includes and institute
State the cooling cycle filtration system that fuel tank is connected；
The cooling cycle filtration system includes the circulating pump, filter and cooler being sequentially communicated.
3. governor valve test macro as described in claim 1, which is characterized in that the governor valve test macro further includes control
Pump and the second overflow valve；
The control pump input terminal is connected with the fuel tank, after the control pump output terminal is connected with the main pump control terminal
It is connected with the second overflow valve input terminal, the second overflow valve output end is connected with the fuel tank.
4. governor valve test macro as described in claim 1, which is characterized in that the first test branch includes first pressure
Table, first pressure sensor and the first high-pressure ball valve；
The first end of first high-pressure ball valve and the A mouth connection of the solenoid directional control valve, the first pressure gauge, described first
The oil inlet of pressure sensor and the governor valve is connected to the second end of first high-pressure ball valve.
5. governor valve test macro as claimed in claim 4, which is characterized in that the second test branch includes second pressure
Table, second pressure sensor, the second high-pressure ball valve and flowmeter；
The first end of the flowmeter is connect with the B of solenoid directional control valve mouth, the second end of the flowmeter and described second
The first end of high-pressure ball valve connects, the oil outlet of the second pressure gauge, the second pressure sensor and the governor valve
It is connected to the second end of second high-pressure ball valve.
6. governor valve test macro as described in claim 1, which is characterized in that the governor valve test macro further includes air
Filter；The air cleaner is connected with the fuel tank, for filtering out the dust debris in air.
7. such as governor valve test macro as claimed in any one of claims 1 to 6, which is characterized in that the governor valve test macro
Further include governor valve mounting blocks, be provided on the governor valve mounting blocks governor valve mounting hole compatible with the governor valve,
Fuel feed hole and oil outlet.
8. a kind of test method using governor valve test macro as described in any one of claim 1 to 7, which is characterized in that
Include:
The solenoid directional control valve left position obtains electric, adjusts the main pump flow, obtain first pressure difference of governor valve oil inlet and outlet and
The through-flow flow of the governor valve first.
9. test method as claimed in claim 8, which is characterized in that the test method further include: the solenoid directional control valve
Right position obtains electric, adjusts the main pump flow and the governor valve inlet pressure to steady state value, adjusts the governor valve oil outlet
Pressure obtains the through-flow flow of the governor valve second and second pressure difference of governor valve oil inlet and outlet.
10. test method as claimed in claim 8, which is characterized in that the test method further include: the solenoid directional control valve
Left position obtains electric, adjusts the main pump flow to steady state value, increases the governor valve oil outlet pressure, obtain the governor valve third
Through-flow flow and the governor valve oil outlet pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811178482.4A CN109253131A (en) | 2018-10-10 | 2018-10-10 | Governor valve test macro and test method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811178482.4A CN109253131A (en) | 2018-10-10 | 2018-10-10 | Governor valve test macro and test method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109253131A true CN109253131A (en) | 2019-01-22 |
Family
ID=65045829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811178482.4A Pending CN109253131A (en) | 2018-10-10 | 2018-10-10 | Governor valve test macro and test method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109253131A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110173486A (en) * | 2019-05-23 | 2019-08-27 | 江苏威博液压股份有限公司 | It is a kind of for small micro- pilot valve and the test device and method of control loop and system |
| CN112253577A (en) * | 2020-10-30 | 2021-01-22 | 农业农村部南京农业机械化研究所 | Crawler chassis test system and test method |
| CN113233279A (en) * | 2021-04-16 | 2021-08-10 | 广东省特种设备检测研究院（广东省特种设备事故调查中心） | Speed limiting valve test device and test method |
| CN115839355A (en) * | 2023-03-01 | 2023-03-24 | 博鼎精工智能科技(山东)有限公司 | Multi-way reversing valve hydraulic system |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004309371A (en) * | 2003-04-09 | 2004-11-04 | Japan Synchrotron Radiation Research Inst | Sample holder for experiment using x-ray |
| JP2006103936A (en) * | 2004-10-08 | 2006-04-20 | Kajima Corp | Hydraulic jack control device, hydraulic jack control system, program, and recording medium |
| CN201165953Y (en) * | 2007-12-27 | 2008-12-17 | 南阳二机石油装备(集团)有限公司 | Plunger piston oil pump double control system for testing winch capstan closed type hydraulic system variable |
| CN101545274A (en) * | 2008-03-27 | 2009-09-30 | 沃尔沃建造设备控股（瑞典）有限公司 | Traveling system for construction equipment |
| CN103510564A (en) * | 2012-06-26 | 2014-01-15 | 山重建机有限公司 | Device for controlling constant power of excavator |
| CN104196786A (en) * | 2014-07-29 | 2014-12-10 | 徐州五洋科技股份有限公司 | Full-hydraulic control pumping hydraulic system used for wet spraying machine for mining |
| CN205389333U (en) * | 2016-03-20 | 2016-07-27 | 商旭东 | Hydraulic drive rotary cultivator |
| CN107489666A (en) * | 2017-08-23 | 2017-12-19 | 中国科学院海洋研究所 | ROV small-sized hydraulic testboards |
| CN207018300U (en) * | 2017-07-11 | 2018-02-16 | 深圳市科斯腾液压设备有限公司 | A kind of governor valve test system |
-
2018
- 2018-10-10 CN CN201811178482.4A patent/CN109253131A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004309371A (en) * | 2003-04-09 | 2004-11-04 | Japan Synchrotron Radiation Research Inst | Sample holder for experiment using x-ray |
| JP2006103936A (en) * | 2004-10-08 | 2006-04-20 | Kajima Corp | Hydraulic jack control device, hydraulic jack control system, program, and recording medium |
| CN201165953Y (en) * | 2007-12-27 | 2008-12-17 | 南阳二机石油装备(集团)有限公司 | Plunger piston oil pump double control system for testing winch capstan closed type hydraulic system variable |
| CN101545274A (en) * | 2008-03-27 | 2009-09-30 | 沃尔沃建造设备控股（瑞典）有限公司 | Traveling system for construction equipment |
| CN103510564A (en) * | 2012-06-26 | 2014-01-15 | 山重建机有限公司 | Device for controlling constant power of excavator |
| CN104196786A (en) * | 2014-07-29 | 2014-12-10 | 徐州五洋科技股份有限公司 | Full-hydraulic control pumping hydraulic system used for wet spraying machine for mining |
| CN205389333U (en) * | 2016-03-20 | 2016-07-27 | 商旭东 | Hydraulic drive rotary cultivator |
| CN207018300U (en) * | 2017-07-11 | 2018-02-16 | 深圳市科斯腾液压设备有限公司 | A kind of governor valve test system |
| CN107489666A (en) * | 2017-08-23 | 2017-12-19 | 中国科学院海洋研究所 | ROV small-sized hydraulic testboards |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110173486A (en) * | 2019-05-23 | 2019-08-27 | 江苏威博液压股份有限公司 | It is a kind of for small micro- pilot valve and the test device and method of control loop and system |
| CN110173486B (en) * | 2019-05-23 | 2020-06-30 | 江苏威博液压股份有限公司 | Testing device and method for small micro pilot valve and control loop and system |
| CN112253577A (en) * | 2020-10-30 | 2021-01-22 | 农业农村部南京农业机械化研究所 | Crawler chassis test system and test method |
| CN113233279A (en) * | 2021-04-16 | 2021-08-10 | 广东省特种设备检测研究院（广东省特种设备事故调查中心） | Speed limiting valve test device and test method |
| CN115839355A (en) * | 2023-03-01 | 2023-03-24 | 博鼎精工智能科技(山东)有限公司 | Multi-way reversing valve hydraulic system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109253131A (en) | Governor valve test macro and test method | |
| CN102996311B (en) | Method and system for diagnosing oil return failure of electronic control common rail oil sprayer | |
| CN102562563B (en) | Energy-saving stepless pressure regulating type hydraulic system for high-pressure pump performance test bench | |
| CN105865796A (en) | Oil-inflow and oil-return bi-directional oil consumption measurement device for engine in test room | |
| CN102052937A (en) | Test set for detecting properties of fluid control valve | |
| CN105020128A (en) | Comprehensive performance test bed of fuel pumps | |
| CN106441739B (en) | A kind of electrical modulation flow control valve combination property test desk | |
| CN208348214U (en) | A kind of portable electronic pump performance test stand | |
| CN205559424U (en) | Hydro -cylinder test platform | |
| CN206221124U (en) | It is a kind of to investigate the instrument that common-rail injector high pressure reveals failure | |
| CN102862316A (en) | Press machine and hydraulic control system thereof | |
| CN104895871A (en) | Comprehensive and energy-saving testing device and method for reliability of electromagnetic valves and hydraulic cylinders | |
| CN106286062B (en) | A kind of booster-type fuel injector Multifunctional test equipment peculiar to vessel | |
| CN104931266B (en) | A kind of airplane engine fuel oil analog control system and adjusting method | |
| CN103352900A (en) | Heavy-duty mining dump vehicle hydraulic oil cylinder/hydraulic valve test table | |
| CN207018300U (en) | A kind of governor valve test system | |
| CN106996400A (en) | A kind of RH steel ladle jacking hydraulic systems of proportioning pump and proportional valve control | |
| CN211231353U (en) | Hydraulic oil control system for power motor test bed | |
| CN109029965A (en) | Hydraulic system is used in a kind of test of center-rotary joint | |
| CN112814889A (en) | Electronic water pump comprehensive performance detecting system | |
| CN210293682U (en) | Equipment for filling and pumping oil | |
| CN208417103U (en) | A kind of hydraulic device of electric-liquid type pressure test machine | |
| CN107489666A (en) | ROV small-sized hydraulic testboards | |
| CN110259765A (en) | A kind of visualized experiment platform for hydraulic valve performance detection | |
| CN204882050U (en) | Valve capability test system is mediated to fuel filter pressure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190122 |
|
| RJ01 | Rejection of invention patent application after publication |