CN205618477U - Servovalve hydraulic test system - Google Patents
Servovalve hydraulic test system Download PDFInfo
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- CN205618477U CN205618477U CN201620230523.XU CN201620230523U CN205618477U CN 205618477 U CN205618477 U CN 205618477U CN 201620230523 U CN201620230523 U CN 201620230523U CN 205618477 U CN205618477 U CN 205618477U
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Abstract
An embodiment of the utility model provides a servovalve hydraulic test system, comprises an oil tank, the hydraulic pump, drive hydraulic pressure electromotor of the pump, pressure control device, a filter equipment, survey test panel, pressure measurement, flow detection device, a controller, observe and control appearance and host computer, it can be connected with different servovalves to survey test panel, pressure measurement, flow detection device is used for detecting pressure and flow and sends observing and controlling appearance and host computer to, observe and control the action of the steerable servovalve of appearance, steerable motor of controller and pressure control device are with governing system's flow and pressure. The utility model discloses servovalve hydraulic test system has realized the automated inspection of parameter and the automatic control of system, has improved the commonality of efficiency, precision and the system of detection.
Description
Technical field
This utility model relates to field of hydraulic equipment, is specifically related to a kind of servo valve hydraulic test system.
Background technology
Servo valve is a kind of senior, accurate Hydraulic Elements, is integrated with machinery, electronics and hydraulic pressure skill
Art.It has the advantages such as dynamic response is fast, control accuracy is high, anti-loading rigidity is big, the most extensively should
For fields such as Aeronautics and Astronautics, naval vessel, metallurgy, chemical industry.
Servo valve performance directly affects the duty even determining whole electrohydraulic servo system.Therefore,
Carrying out performance test before servo valve dispatches from the factory and in maintenance process is indispensable link.
In such scheme, utility model people finds that in prior art, at least there are the following problems:
At present, existing servo valve hydraulic test system often operates complexity, poor universality, test standard
Really property is low, can not meet the technology requirement to Testing Performances of Hydraulic Servo Valve.
Utility model content
In view of this, the purpose of this utility model is to provide one can improve servo valve detection effect
The servo valve hydraulic test system of rate and quality.
This purpose can be realized by below scheme:
A kind of servo valve hydraulic test system, including fuel tank, hydraulic pump, driving hydraulic pump electronic
Machine, pressure control device, the first defecator, test board, pressure-detecting device, flow detection
Device, controller, measurement and control instrument and host computer；Described test board includes multiple interface, the plurality of
Interface can be connected with the interface of servo valve via the runner being located in described test board；Described test
Including an inlet and an outlet in multiple interfaces of plate, wherein said entrance is for inputting to described servo valve
Hydraulic oil, the hydraulic oil that described outlet is exported by servo valve for output；Described hydraulic pump is by pipe
Road is sequentially connected with the first defecator and the entrance of described test board；Described pressure control device is used for
Control the pressure of the hydraulic oil inputted to described entrance；Described flow detector is used for detecting described
Export the hydraulic fluid flow rate of output and flow value is sent to described measurement and control instrument；Described test board is many
Being respectively equipped with pressure-detecting device in individual interface, described pressure-detecting device is for detecting its place
Force value is also sent to described measurement and control instrument by the pressure of the hydraulic oil in interface；Described measurement and control instrument is by institute
State flow value and described force value sends described host computer to, and described servo valve is controlled；
Described controller is connected respectively with described host computer, described motor, described pressure control device,
And be used for controlling described motor and described pressure control device.
Optionally, in aforesaid servo valve hydraulic test system, described pressure control device includes
Proportional pressure control valve, the import of described proportional pressure control valve is connected to described hydraulic pump and described first and filters
On pipeline between device, the outlet of described proportional pressure control valve connects described fuel tank.
Optionally, in aforesaid servo valve hydraulic test system, described pressure control device also wraps
Including overflow unloader, the import of described overflow unloader is connected to the entrance of described test board and described
On pipeline between the outlet of the first defecator, the outlet of described overflow unloader connects described oil
Case.
Optionally, in aforesaid servo valve hydraulic test system, also include with described measurement and control instrument even
The first temperature-detecting device connect, described first temperature-detecting device is used for detecting described test board and enters
Mouthful hydraulic fluid temperature and temperature value is sent to described measurement and control instrument.
Optionally, in aforesaid servo valve hydraulic test system, described servo valve hydraulic test system
System also includes the temperature control equipment being connected with described controller, and described temperature control equipment is used for
Control the hydraulic fluid temperature in fuel tank.
Optionally, in aforesaid servo valve hydraulic test system, described temperature control equipment includes
Oil cooling machine and/or heater.
Optionally, in aforesaid servo valve hydraulic test system, also include with described controller even
The second temperature-detecting device connect, described second temperature-detecting device is for detecting in described fuel tank
Temperature value is also sent to described controller by hydraulic fluid temperature, and described controller controls described temperature control
The temperature of hydraulic oil in device regulating oil tank processed.
Optionally, in aforesaid servo valve hydraulic test system, also include choke valve, the first list
To valve；The outlet of described first defecator is sequentially connected with the first check valve, choke valve and test board
Entrance.
Optionally, in aforesaid servo valve hydraulic test system, also include the second check valve and
Two defecators, the outlet of described flow detector be sequentially connected with described second check valve, second
Defecator and fuel tank.
Optionally, in aforesaid servo valve hydraulic test system, described servo valve hydraulic test system
System also includes charge valve；The plurality of interface of described test board includes A mouth, B mouth, P mouth and T
Mouthful, the A mouth of described test board, B mouth, P mouth and T mouth can be by inner flow passage and servo valves
A mouth, B mouth, P mouth are connected with T mouth；The P mouth of described test board connects as described entrance
The outlet of described first defecator, the T mouth of described test board connects described stream as described outlet
The entrance of amount detecting device, described charge valve is connected between the A mouth of described test board and B mouth；
Described pressure-detecting device includes A mouth pressure detection device, the B being connected respectively with described measurement and control instrument
Mouth pressure detection device, P mouth pressure detection device and T mouth pressure detection device, for examining respectively
Survey the A mouth of test board, B mouth, P mouth and the hydraulic fluid pressure of T mouth and force value is sent to institute
State measurement and control instrument.
This utility model embodiment provides the benefit that:
1, different servo valves can be detected by arranging test board, improve servo valve hydraulic pressure
The versatility of test system, and then improve detection efficiency and quality.
2, by arranging pressure-detecting device at test board interface, the force value of each interface can be entered
Row accurately detection, improves the accuracy of test.
3, by arranging pressure control device, test pressure can be controlled, simulate various test
Condition.
Accompanying drawing explanation
By description to this utility model embodiment referring to the drawings, of the present utility model above-mentioned
And other objects, features and advantages will be apparent from, in the accompanying drawings:
Fig. 1 is the hydraulic schematic diagram of servo valve hydraulic test system of the present utility model.
Fig. 2 is the observing and controlling layout of servo valve hydraulic test system of the present utility model.
Fig. 3 is the operational flowchart of servo valve hydraulic test system of the present utility model.
In figure, label is described as follows:
1-fuel tank；2-fuel outlet ball valve；3-oil absorption filter；4-oil cooling machine；5-return filter；6-
Heater；7-the second defecator；8-the second check valve；9-flow detector；10-the second temperature
Degree detection device；11-motor；12-hydraulic pump；13-proportional pressure control valve；14-the first defecator；
15-overflow unloader；16-Pressure gauge；17-check valve；18-choke valve；19-charge valve；20-
One temperature-detecting device；21-P mouth pressure detection device；22-T mouth pressure detection device；23-A mouth
Pressure-detecting device；24-B mouth pressure detection device；25-tests base plate；26-air filter；
27-liquid level controller；28-liquid level liquid thermometer；30-servo valve；31-controller；32-measurement and control instrument；
33-host computer.
Detailed description of the invention
Below based on embodiment, this utility model is described, but this utility model is not merely
It is limited to these embodiments.In below details of the present utility model being described, detailed describe
Specific detail section.The description not having these detail sections for a person skilled in the art also may be used
To understand this utility model completely.In order to avoid obscuring essence of the present utility model, known method,
The narration the most in detail of process, flow process, element.
In the accompanying drawings, for the sake of clarity, layer and the size in region or relative size may be exaggerated.
Should be appreciated that when an element or layer be described as " being positioned at ", " being connected to " or " coupleding to " another
Time on element or layer, this element or layer can be located immediately at, be directly connected to or direct-coupling
On another element or layer, or there is therebetween sandwiched element or layer.In contrast, when one
Individual element or layer are described as " being located immediately at ", " being connected directly to " or " coupling directly to " another element
Or time on layer, the most there is not sandwiched element or layer.In the text, identical reference mark
Note represents identical element.As used herein, term "and/or" includes one or more phase
Close arbitrarily or all combining of item.
It is to be understood that, although term " first ", " second ", " the 3rd " etc. may be used in this article
Various element, parts, region, layer and/or part described, but these elements, parts, region,
Layer and/or part should not be limited by these terms.These terms be only used for by an element, parts,
Region, layer and/or part are distinguished by with another element, parts, region, layer and/or part.Cause
This, without departing substantially from this utility model instruct in the case of, the first element described below, parts,
Region, layer or part can be referred to as the second element, parts, region, layer or part.
When term used herein " includes ", this term represent the feature described in existence, entirety,
Step, operation, element and/or parts, but be not excluded for other features one or more, entirety,
The existence of step, operation, element, parts and/or a combination thereof or increase.
Unless otherwise prescribed, term used herein (including technology and scientific terminology) have with
The implication that implication that this utility model person of an ordinary skill in the technical field is generally understood that is identical.
It is also understood that term (such as at the term defined in normally used dictionary) should be construed to
There is the implication identical with the implication in background of related, should not be construed to Utopian or excessively
Formal implication, unless this defines the most clearly.
Embodiment one
Fig. 1 is the hydraulic pressure of the servo valve hydraulic test system being denoted as this utility model embodiment one
Schematic diagram, Fig. 2 is the observing and controlling layout of the servosystem of this utility model embodiment.The present embodiment
In servo valve hydraulic test system include: fuel tank 1, hydraulic pump 12, drive hydraulic pump 12 electricity
Motivation 11, pressure control device, the first defecator 14, test board 25, pressure-detecting device,
Flow detector 9, controller 31, measurement and control instrument 32 and host computer 33, described test board 25 wraps
Including multiple interface, the plurality of interface can be connected with the interface of servo valve 30, described test board
Including an inlet and an outlet in multiple interfaces of 25, wherein entrance (such as, P mouth in Fig. 1) is used for
By described test board to described servo valve 30 input hydraulic pressure oil, export (such as, T mouth in Fig. 1)
For exporting the hydraulic oil of described servo valve 30 output through described test board 25；Described hydraulic pump 12
For the hydraulic oil in fuel tank 1 is delivered to the first defecator 14, hydraulic oil filters dress through first
The entrance of described test board 25 is entered after putting 14 filtrations；Described pressure control device for control to
The pressure of the hydraulic oil of described entrance input；Described flow detector 9 is used for detecting described outlet
Output hydraulic fluid flow rate and flow value is sent to described measurement and control instrument 32；Described test board 25
Being respectively equipped with pressure-detecting device in multiple interfaces, described pressure-detecting device is used for detecting its place
Interface in the pressure of hydraulic oil and force value is sent to described measurement and control instrument 32；Described measurement and control instrument
Described flow value and described force value are sent to described host computer 33 by 32, and to described servo valve 3
It is controlled；Described controller 31 and described host computer 33, described motor 11, described pressure
Control device to connect respectively, and be used for controlling described motor 11 and described pressure control device.
The servo valve hydraulic test system of the present embodiment is controlled by host computer 33 and/or controller 31
Hydraulic pump 12 output hydraulic pressure oil, and controlled the pressure of hydraulic oil by pressure control device, to hydraulic pressure
The output pressure of pump 12 is controlled, and then controls to enter the oil pressure of test board 25, passes through simultaneously
Pressure-detecting device and flow detector 9 detect respectively each interface of test board 25 force value and
Flow through the flow value of test board 25, and force value and flow value are sent to by measurement and control instrument 32
Position machine 33, is stored by host computer 33 and is processed.The standard of running parameter to servo valve 30 can be realized
Really measure, improve efficiency and the quality of test.
Perform full additionally, can control to be test for servo valve by host computer 33 and/or measurement and control instrument 32
The various actions of foot test condition.Everything all can be at host computer 33, controller 31, measurement and control instrument
Having set in 32, automaticity is high, and achieve test parameter detection automatically, process and
Display.
Preferably, host computer 33 preferably employs computer or other intelligent terminal, and controller 31 is preferred
Use PLC, single-chip microcomputer and XPC etc..
Additionally, the present embodiment is by arranging test board 25, different model, the servo valve to be measured of specification
30 can be installed on test board 25 by different keysets, and the interface of servo valve 30 passes through test board
The interface of 25 is connected by the inner flow passage of test board 25, so need not survey servo valve hydraulic pressure
Test system does any change can realize the test of the servo valve to Multiple Type, is greatly improved and is
The versatility of system.
Preferably, described hydraulic pump 12 preferably employs hydraulic pump, and it can be driven by motor 11.
Preferably, the first defecator 14 preferably employs high pressure filter, the first defecator 14
It is arranged on high-pressure side, uses high pressure filter can preferably adapt to the use environment under high pressure.
Preferably, the entrance of flow detector 9 and the outlet (T mouth in Fig. 1) of test board 25
It is connected, in order to detect the hydraulic fluid flow rate of the output of test board 25.Flow detector 9 can be adopted
Use flow transducer.
Preferably, pressure control device can include proportional pressure control valve 13.Concrete, proportional overflow
The entrance of valve 13 is connected on the pipeline between the outlet of hydraulic pump 12 and the first defecator 14,
For controlling the hydraulic fluid pressure of the outlet of described hydraulic pump 12.In addition to proportional pressure control valve 13,
Pressure control device can also use the combination of other pressure-control valves or pressure-control valve.
Preferably, described controller 31 and described host computer 33, the electricity driving described hydraulic pump 12
Motivation 11, proportional pressure control valve 13 connect respectively, and can be directly and/or according to described host computer 33
Instruction controls described hydraulic pump 12 and proportional pressure control valve 13.The present embodiment by host computer 33 and/
Or controller 31 controls described motor 11 and proportional pressure control valve 13, and then in test board 25
Flow and the pressure of the hydraulic oil in portion are adjusted.
Additionally, pressure control device may also include overflow unloader 15, described overflow unloader 15
Import be connected to described test board 25 entrance (the P mouth in Fig. 1) and described first filter dress
Putting on the pipeline between the outlet of 14, the outlet of described overflow unloader 15 connects described fuel tank 1.
The effect of overflow unloader 15 is to be controlled the hydraulic fluid pressure entered in test board 25, anti-
Only oil pressure high pressure overload in test board 25.Overflow unloader 15 is connected with controller 31, can be
Controller 31 and/or host computer 33 control lower control off-load or loading.
Additionally, the servo valve hydraulic test system of the present embodiment may also include the first temperature-detecting device
20, for detecting the hydraulic fluid temperature of input test plate 25 and temperature value being sent to measurement and control instrument 32.
Preferably, the first temperature-detecting device 20 is arranged on the porch of test board 25, to detect input
The oil temperature of test board 25.Preferably, the first temperature-detecting device 20 can use temperature sensor.
Additionally, the servo valve hydraulic test system in the present embodiment may also include and described controller 31
The temperature control equipment being connected, described temperature control equipment is for controlling the hydraulic oil temperature in fuel tank
Degree.To ensure that the temperature of the hydraulic oil for test is in set point, to ensure test result
Accuracy.
Preferably, temperature control equipment can include oil cooling machine 4 and/or heater 1.Such as institute in Fig. 1
Showing, oil cooling machine 4 and/or heater 1 are connected with controller 31.Oil cooling machine 4 is used for cooling down oil
Hydraulic oil in case 1；Heater 6 is for the oil heating in fuel tank 1.
Preferably, servo valve hydraulic test system also includes oil absorption filter 3 and return filter 5,
For to the oil-feed of oil cooling machine with fuel-displaced filter, as shown in fig. 1, oil absorption filter 3 enters
Hydraulic fluid port is connected with fuel tank 1, and oil absorption filter 3 oil-out is connected with oil cooling machine 4 oil-in；Oil is cold
Machine 4 oil-out connects back to oil strainer 5 oil-in；Return filter 5 oil-out is connected to fuel tank
1.The turnover oil of oil cooling machine can be filtered by oil absorption filter 3 and return filter 5, it is ensured that oil
The normal work of cold.
Additionally, the second temperature-detecting device being connected with controller 31 also can be provided with in fuel tank 1
10, the second temperature-detecting device 10 is in order to detect the temperature of the hydraulic oil in fuel tank 1 and to be sent to control
Device 31 processed, controller 31 can directly and/or according to the instruction of host computer 33 control oil cooling machine 4 and/
Or heater 6 is in order to the hydraulic fluid temperature in regulating oil tank 1.By arranging oil cooling machine 4, heating
Device 10, and combine the testing result of the second temperature-detecting device 10, can realize hydraulic oil oil temperature
Accurate control.Preferably, the second temperature-detecting device 10 can use liquid thermometer.
Additionally, liquid level liquid thermometer 28, air filter 26, ball of draining the oil also can be provided with in fuel tank 1
Valve 2 and/or liquid level controller 27.Wherein, liquid level liquid thermometer 28 is arranged in fuel tank 1 sidewall, uses
Liquid level and temperature in fuel tank 1 work show.Air filter 26 is for the air in fuel tank 1
Filter.Liquid level controller 27 is connected with controller 31, for controlling the liquid in fuel tank 1
Position.
Additionally, the servo valve hydraulic test system of the present embodiment may also include choke valve 18, first is single
To valve 17 and the second check valve 8；The outlet of the first defecator 14 is sequentially connected with the first check valve
17, the entrance (the P mouth in Fig. 1) of choke valve 18 and test board 25；Flow detector 9
Outlet be sequentially connected with the second check valve the 8, second defecator 7 and fuel tank 1.First check valve
17 and can prevent hydraulic oil from pouring in down a chimney, the second check valve 8 is that system oil return provides certain return oil pressure；
Choke valve 18 is used for that servo valve 30 is tested pressure and flow is adjusted.
Additionally, the servo valve hydraulic test system of the present embodiment may also include the second defecator 7,
Second defecator 7 is arranged between the outlet of flow detector 9 and fuel tank 1, and second filters
Device 7 is transmitted back to fuel tank 1 after the hydraulic oil flowing out test board 25 filters.Preferably,
Second defecator 7 can use low-pressure filter.
Embodiment two
The servo valve hydraulic test system of the present embodiment exists with the servo valve examining system difference of embodiment one
In: test board 25 has A mouth, B mouth, P mouth and four interfaces of T mouth.Concrete, such as Fig. 1
Shown in, the A mouth of described test board 25, B mouth, P mouth and T mouth respectively with servo valve 30
A mouth, B mouth, P mouth connect with T mouth, and test board 25 uses modularized design, can be to for right
The servo valve 30 of different model is tested, and improves servo valve 30 and tests the versatility of system.
The P mouth of described test board 25 connects the outlet of described first defecator 14 as entrance, described
The T mouth of test board 25 connects the entrance of described flow detector 9 as outlet.
Additionally, servo valve hydraulic test system also includes that charge valve 19, charge valve 19 are connected to institute
State between the A mouth of test board and B mouth, for regulating the load pressure in servo valve test process；
Pressure-detecting device includes A mouth pressure detection device 23, the B mouth being connected respectively with described measurement and control instrument
Pressure-detecting device 24, P mouth pressure detection device 21 and T mouth pressure detection device 22, test
The P mouth of plate 25 is connected with P mouth pressure detection device 21 by inner flow passage, the T of test board 25
Mouth is connected with T mouth pressure detection device 22 by inner flow passage, and the A mouth of test board 25 is by interior
Portion's runner and A mouth pressure detection device 23 is connected, the B mouth of test board 25 by inner flow passage and
B mouth pressure detection device 24 is connected.A mouth pressure detection device 23, B mouth pressure detection device
24, P mouth pressure detection device 21 and T mouth pressure detection device 22 detects servo valve 30 respectively
Force value is also sent to measurement and control instrument 32 by A mouth, B mouth, P mouth and the hydraulic fluid pressure of T mouth.Survey
Force value is sent to host computer 33 by control instrument 32.
Below in conjunction with Fig. 1 and Fig. 2, the servo valve hydraulic test system of the present embodiment is carried out detailed
Illustrate:
As shown in fig. 1, fuel outlet ball valve 2 is connected with fuel tank 1 bottom；Liquid level liquid thermometer 28 is arranged
In fuel tank 1 sidewall；Heater the 6, second temperature-detecting device 10, air filter 26, liquid level
Controller 27 is all connected with fuel tank 1；Oil absorption filter 3 oil-in is connected with fuel tank 1, oil suction
Filter 3 oil-out is connected with oil cooling machine 4 oil-in；Oil cooling machine 4 oil-out connects back to oil strainer
5 oil-ins；Return filter 5 oil-out is connected to fuel tank 1；Motor 11 is same with hydraulic pump 12
Axle connects；Hydraulic pump 12 inlet port is connected to fuel tank 1, and hydraulic pump 12 oil-out is simultaneously and ratio
Overflow valve 13 oil-in and the first defecator 14 oil-in are connected；First defecator 14 is fuel-displaced
Mouth is divided into three tunnels, and the first via is connected to Pressure gauge 16, and the second road is connected to the first check valve 17 and enters
Hydraulic fluid port, the 3rd road is connected to overflow unloader 15 oil-in；Proportional pressure control valve 13 oil-out is with excessive
Stream unloader 15 oil-out is simultaneously connected to fuel tank 1；First check valve 17 oil-out is through throttling
Valve 18 is divided into two-way, the first via to be connected to the first temperature-detecting device 20, and the second road is connected to survey
The P mouth of test plate (panel) 25；The T mouth of test board 25 connects the second check valve by flow detector 9
8 oil-ins；Second check valve 8 oil-out is connected to the second defecator 7 oil-in；Second mistake
Filter device 7 oil-out is connected to fuel tank 1；Charge valve is connected between A mouth and the B mouth of test board 25
19。
In above-mentioned optimum embodiment, the on-off control that fuel outlet ball valve 2 is drained the oil as fuel tank 1
Valve；Liquid level liquid thermometer 28 shows for the liquid level liquid temperature of fuel tank 1 work；Air filter 26
Ensure fuel tank 1 and atmosphere；Second temperature-detecting device 10 and liquid level controller 27 are to fuel tank
1 operating temperature and liquid level are monitored, and can send command signal to controller；First temperature inspection
Survey device 20 detect the hydraulic fluid temperature of test board 25 and be sent to measurement and control instrument 32；Oil absorption filter
3 and return filter 5 for eliminate in oil cooling machine 4 cooling procedure inhale, the oil residue of oil return line,
Ensure fluid cleaning；Second defecator 7 and the first defecator 14 are used for eliminating servo valve test
Suction, the oil residue of oil return line, it is ensured that fluid cleans；Motor 11 drives hydraulic pump 12 for whole
Individual test system provides power input；Proportional pressure control valve 13 is hydraulic pump in servo valve test process
The setting of 12 hydraulic pump mouth pressures；Overflow unloader 15 plays safeguard protection effect, and realizes system
Load and unloading control；First check valve 17 mainly prevents hydraulic pump 12 hydraulic pressure pumping hole fluid from pouring in down a chimney；
Second check valve 8 ensures that test system has certain return oil pressure；Choke valve 18 is to servo valve
30 test pressure and flow are adjusted；Charge valve 19 is used for regulating in servo valve 30 test process
Load pressure；Pressure gauge 16 monitoring in real time display measurement system operating pressure；Flow detection fills
Put 9 for detecting servo valve return flow, and output electrical signals to measurement and control instrument 32；P mouth pressure is examined
Survey device 21, T mouth pressure detection device 22, detection the device 23 and B mouth pressure inspection of A mouth pressure
Survey device 24 respectively P mouth, T mouth, A mouth and the B mouth pressure of servo valve 30 to be detected,
And force value is separately sent to measurement and control instrument 32.
It it is the observing and controlling layout of the servo valve hydraulic test system of the present embodiment shown in Fig. 2.
Controller 31 monitors fuel tank 1 fluid level condition, by the second temperature by liquid level controller 27
Detection device 10 monitors the liquid temperature state of fuel tank 1, and controlled liquefaction cold 4 and heater 6 control
Hydraulic fluid temperature in fuel tank.Additionally, first defecator the 14, second defecator 7, oil suction
Also can be respectively provided with signalling generator on filter 3 and return filter 5, controller 31 also can connect respectively
Receive the first defecator 14 signalling generator, the second defecator 7 signalling generator, oil absorption filter 3
News device and return filter 5 signalling generator, and then monitor filter duty, it is achieved servo valve liquid
The monitoring of pressure test system oil cleanliness.Final controller 31 and host computer 33 real-time communication,
Fluid level condition, liquid temperature state and/or filter state signal are transferred to host computer 33 by controller 31.
Further, host computer 33 can by controller 31 issue instructions to oil cooling machine 4, heater 6 and/
Or motor 11, control oil cooling machine 4, heater and/or the start and stop of motor 11；Host computer 33
Overflow unloader 15 can be issued instructions to by controller 31, control off-load or loading；Host computer
33 can output a control signal to proportional pressure control valve 13 by controller 31 regulates and controls system pressure.
In test process, servo valve 30 to be measured be may be mounted on test board 25 by different keysets.
Measurement and control instrument 32 is connected respectively to P mouth pressure detection device 21, T mouth pressure detection device 22, A
Mouth pressure detection device 23 and B mouth pressure detects device 24 and then to each interface of servo valve 30 to be measured
Pressure is tested；Measurement and control instrument 32 is connected to flow detector 9, tests flow system flow.
The force value that each pressure-detecting device detects is transferred to host computer and carries out data by final measurement and control instrument 32
Storage and display.Additionally, host computer 33 outputs a control signal to servo to be measured by measurement and control instrument 32
Valve 30, and then drive servo valve 30 spool action to be measured.
It is the work of the optimum embodiment of the servo valve hydraulic test system of the present embodiment shown in Fig. 3
Flow chart.
Servo valve 30 to be measured, in implementation process, is first installed to by this utility model by keyset
On test board 25, and system is initialized；Host computer 33 controls controller 31 and starts hydraulic pressure
Pump 12 output hydraulic pressure is oily, and system working pressure set up by passing ratio overflow valve 13；The most upper
Machine 33 controls measurement and control instrument 32 and outputs a control signal to servo valve 30 to be measured, is detected by P mouth pressure
Device, T mouth pressure detection device, A mouth pressure detection device and B mouth pressure detection device are treated
Survey servo valve 30 each actuator port pressure to be acquired, and gather to be measured by flow detector 9
The flow value of servo valve 30；Final pressure value, flow value are transmitted by measurement and control instrument 32 real-time communication
Carry out data storage and display, data acquisition detection work to host computer 33, enter into next
Cycle of operation.
Different servo valves can be detected by this utility model embodiment by arranging test board, carries
The high versatility of servo valve hydraulic test system, and then improve detection efficiency and quality；Additionally,
By arranging pressure-detecting device at test board interface, the force value of each interface can be carried out accurately
Detection, improves the accuracy of test；Additionally, by arranging pressure control device, can be to test pressure
Power is controlled, and simulates various test condition.
It will also be appreciated that example embodiment is provided, so that the disclosure is comprehensive, and will
Its scope is fully conveyed to those skilled in the art.A lot of specific detail (such as particular elements, set
The standby example with method) it is presented to provide thorough understanding of the disclosure.Those skilled in the art
It will be appreciated that need not use specific detail, example embodiment can be with the most different forms by reality
Execute, and example embodiment is understood not to limit the scope of the present disclosure.Implement in some examples
In example, it is thus well known that device structure and widely-known technique are not described in.
Claims (10)
1. a servo valve hydraulic test system, including fuel tank (1), hydraulic pump (12), drives hydraulic pressure pump motor (11), pressure control device, the first defecator (14), test board (25), pressure-detecting device, flow detector (9), controller (31), measurement and control instrument (32) and host computer (33)；It is characterized in that:
Described test board (25) includes multiple interface, and the plurality of interface can be connected via the interface of the runner being located in described test board with servo valve (30)；Including an inlet and an outlet in multiple interfaces of described test board (25), wherein said entrance is for described servo valve (30) input hydraulic pressure oil, the hydraulic oil that described outlet is exported by servo valve (30) for output；
Described hydraulic pump (12) is sequentially connected with the first defecator (14) and the entrance of described test board (25) by pipeline；
The pressure of the hydraulic oil that described pressure control device inputs to described entrance for control；
Described flow detector (9) is for detecting the hydraulic fluid flow rate of described outlet output and flow value sending to described measurement and control instrument (32)；
Being respectively equipped with described pressure-detecting device in multiple interfaces of described test board (25), described pressure-detecting device is used for detecting the pressure of the hydraulic oil in the interface at its place and force value sending to described measurement and control instrument (32)；
Described flow value and described force value are sent to described host computer (33) by described measurement and control instrument (32), and are controlled described servo valve (30)；
Described controller (31) is connected respectively with described host computer (33), described motor (11), described pressure control device, and is used for controlling described motor (11) and described pressure control device.
2. servo valve hydraulic test system as claimed in claim 1, it is characterized in that, described pressure control device includes proportional pressure control valve (13), the import of described proportional pressure control valve (13) is connected on the pipeline between described hydraulic pump (12) and described first defecator (14), and the outlet of described proportional pressure control valve (13) connects described fuel tank (1).
3. servo valve hydraulic test system as claimed in claim 1, it is characterized in that, described pressure control device also includes overflow unloader (15), the import of described overflow unloader (15) is connected on the pipeline between the entrance of described test board (25) and the outlet of described first defecator (14), and the outlet of described overflow unloader (15) connects described fuel tank (1).
4. servo valve hydraulic test system as claimed in claim 1, it is characterized in that, also including the first temperature-detecting device (20) being connected with described measurement and control instrument (32), described first temperature-detecting device (20) is for detecting the hydraulic fluid temperature of described test board entrance and temperature value being sent to described measurement and control instrument (32).
5. servo valve hydraulic test system as claimed in claim 1, it is characterized in that, described servo valve hydraulic test system also includes the temperature control equipment being connected with described controller (31), and described temperature control equipment is for controlling the hydraulic fluid temperature in fuel tank.
6. servo valve hydraulic test system as claimed in claim 5, it is characterised in that described temperature control equipment includes oil cooling machine (4) and/or heater (6).
7. servo valve hydraulic test system as claimed in claim 5, it is characterized in that, also include the second temperature-detecting device (10) being connected with described controller (31), described second temperature-detecting device (10) is used for detecting the hydraulic fluid temperature in described fuel tank (1) and temperature value sending to described controller (31), and described controller (31) controls the temperature of the interior hydraulic oil of described temperature control equipment regulating oil tank (1).
8. servo valve hydraulic test system as claimed in claim 1, it is characterised in that also include choke valve (18), the first check valve (17)；The outlet of described first defecator (14) is sequentially connected with the first check valve (17), choke valve (18) and the entrance of test board (25).
9. servo valve hydraulic test system as claimed in claim 1, it is characterized in that, also including the second check valve (8) and the second defecator (7), the outlet of described flow detector (9) is sequentially connected with described second check valve (8), the second defecator (7) and fuel tank (1).
10. servo valve hydraulic test system as claimed in any one of claims 1-9 wherein, it is characterised in that described servo valve hydraulic test system also includes charge valve (19)；The plurality of interface of described test board (25) includes that A mouth, B mouth, P mouth and T mouth, the A mouth of described test board (25), B mouth, P mouth and T mouth can be connected with A mouth, B mouth, P mouth and the T mouth of servo valve by inner flow passage；The P mouth of described test board (25) connects the outlet of described first defecator (14) as described entrance, the T mouth of described test board (25) connects the entrance of described flow detector (9) as described outlet, and described charge valve (19) is connected between the A mouth of described test board and B mouth；Described pressure-detecting device includes A mouth pressure detection device (23), B mouth pressure detection device (24), P mouth pressure detection device (21) and T mouth pressure detection device (22) being connected respectively with described measurement and control instrument, for detecting the A mouth of test board, B mouth, P mouth and the hydraulic fluid pressure of T mouth respectively and force value sending to described measurement and control instrument.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620230523.XU CN205618477U (en) | 2016-03-23 | 2016-03-23 | Servovalve hydraulic test system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620230523.XU CN205618477U (en) | 2016-03-23 | 2016-03-23 | Servovalve hydraulic test system |
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| CN205618477U true CN205618477U (en) | 2016-10-05 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105587714A (en) * | 2016-03-23 | 2016-05-18 | 海航高科秦皇岛科技有限公司 | Hydraulic test system for servo valve |
| CN106678128A (en) * | 2017-01-10 | 2017-05-17 | 海航高科秦皇岛科技有限公司 | Servo valve test service system |
-
2016
- 2016-03-23 CN CN201620230523.XU patent/CN205618477U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105587714A (en) * | 2016-03-23 | 2016-05-18 | 海航高科秦皇岛科技有限公司 | Hydraulic test system for servo valve |
| CN106678128A (en) * | 2017-01-10 | 2017-05-17 | 海航高科秦皇岛科技有限公司 | Servo valve test service system |
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