CN106768914B - It can prevent hydraulic oil reflux and stablize the pilot system in the electric device for valve service life of oil pressure - Google Patents
It can prevent hydraulic oil reflux and stablize the pilot system in the electric device for valve service life of oil pressure Download PDFInfo
- Publication number
- CN106768914B CN106768914B CN201611029051.2A CN201611029051A CN106768914B CN 106768914 B CN106768914 B CN 106768914B CN 201611029051 A CN201611029051 A CN 201611029051A CN 106768914 B CN106768914 B CN 106768914B
- Authority
- CN
- China
- Prior art keywords
- valve
- oil
- electric device
- torque
- pipeline
- 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.)
- Expired - Fee Related
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The present invention relates to a kind of pilot systems in electric device for valve service life that can prevent hydraulic oil from flowing back and stablizing oil pressure, including the electric device for valve to be measured being installed on the workbench and for providing the hydraulic control device of load torque to electric device for valve to be measured.Hydraulic control device is respectively arranged with one-way throttle valve on the pipeline of oil cylinder oil inlet mouth and oil outlet, it may insure the normal work of oil cylinder through two one-way throttle valves, make the piston of oil cylinder when flexible with stable oil pressure cntrol, avoids that shake and inclination occurs when oil cylinder piston is flexible.Filter and check valve are also equipped on pipeline between fuel tank and three-position four-way electromagnetic directional valve, filter is arranged on the pipeline between oil pump and fuel tank, keep the cleaning of oil cylinder hydraulic oil, the main function of check valve is to prevent hydraulic oil reflux fuel pump outlet, damage oil pump, it is ensured that there is the hydraulic system of hydraulic control device stable oil pressure to work.
Description
The application is application No. is 201410095101.1, and the applying date is on March 14th, 2014, and invention and created name is
A kind of divisional application of the application for a patent for invention of " electric device for valve life test rack ".
Technical field
The present invention relates to a kind of testing stand in electric device for valve service life (the also referred to as test systems in electric device for valve service life
System).
Background technique
Electric device for valve is to realize that valve stroking, automatic control and the indispensable driving equipment of remote control, common valve are electronic
The general low efficiency of life test detection method that device manufacturing enterprise uses, test process are complicated, and dynamic is not in test parameter
Existing, precision cannot guarantee that, and need personnel day and night on duty.
The true service requirement of valve is pressed, load characteristic is as shown in Fig. 1, when electric device for valve life test, with operation
Torque operating closes (i.e. in Fig. 1 represented by vertical line part) with maximum control torque.Control valve test in this way cannot be accurately
Simulate the true working condition of valve.
Originally the electric device for valve life test rack of general enterprises is loaded using disk spring simulation valve, service life examination
Testing process, there are many disadvantages, are not able to satisfy testing regulations requirement.
Electrical control is using contactor, relay control discrete component and simple disk spring control device, Bu Nengjin
Real-time data acquisition, analysis and the communication of row electric device for valve test, torque is to measure indirectly, that is, passes through electric device for valve
Upper force moment protection determines the form of peak torque, can not read the real-time torque in operational process, so every time before on-test
The debugging correction course for needing to grow very much, reduces the accuracy of electric device for valve life test, it is difficult to meet user's requirement.
Life test will be done 10000 times or so, in order to shorten test period, generally take the continuous work of electric device for valve
Make, fever can be caused to increase the electric device for valve motor of short time duty in this way, ordinary test platform does not have circulating cooling
System, life test can only be using artificial coolings, and labor intensity is very big, is easy to produce safety accident.
Summary of the invention
The technical problem to be solved by the present invention is providing a kind of electric valve that can be prevented hydraulic oil reflux and stablize oil pressure
The pilot system of device lifetime makes to adjust electric device for valve in ten thousand life tests, the load characteristic of electric device for valve
The true operating status requirement of valve can be fully met.
The technical solution adopted by the present invention to solve the technical problems is: of the invention can prevent hydraulic oil from flowing back and stablizing
The service life experiment system (hereinafter referred to as pilot system) of the electric device for valve of oil pressure includes workbench, electric device for valve, use
In providing the hydraulic control device and electric control console of load torque to electric device for valve, electric control console divides
Circuit connection is not formed with electric device for valve and hydraulic control device and workbench.
The hydraulic control device includes fuel tank, three-position four-way electromagnetic directional valve and oil cylinder, and 3-position 4-way electromagnetism changes
There is first interface, second interface, third interface and the 4th interface, the fuel tank and first interface pipeline connection to valve,
It is provided with oil pump on the pipeline, the oil inlet and oil outlet of oil cylinder are respectively through pipeline and second interface and third orifice, and
Four interfaces are connected to through oil return pipe with fuel tank, are provided with proportional pressure control valve on the pipeline of the oil return pipe between the 4th interface and fuel tank
And pressure sensor.
The electric device for valve is installed on the workbench, and the output revolving shaft lower end of electric device for valve is through torque sensing
The connection of the piston of device and torque drive lead screw and oil cylinder, the torque drive lead screw are threadedly engaged with workbench formation, and torque passes
The upper end of dynamic lead screw is connect through torque sensor with output revolving shaft；Torque drive lead screw is through on torque sensor drive and workbench
Nut screw rotation realize move up and down, to drive the piston up-down of oil cylinder.
For the electric device for valve in life test, electric device for valve successively undergoes operation phase and load rank
Section, in load phase, torque and there are linear ratio relations between the working time that electric device for valve provides.
Further, the workbench includes the four columns of platen and bottom, and electric device for valve is through ut socket
Be mounted on platen, between torque drive lead screw and platen formed be threadedly engaged, torque drive lead screw pass through ut socket and with
Ut socket is threadedly engaged connection.
Further, the torque drive lead screw lower end passes through platen and connect with piston, the lower end of torque drive lead screw
Portion is equipped with the triatic stay for keeping torque drive lead screw stability, and triatic stay and torque drive threads of lead screw cooperate,
The both ends of triatic stay are separately installed with copper sheathing, and the copper sheathing at both ends is contacted with the column of two sides respectively, and the copper sheathing is semicircle
Shape structure.
Further, upper limit switch, lower position switch and loaded switches are provided on the column, loaded switches are located at
Between upper limit switch and lower position switch, upper limit switch, lower position switch and loaded switches are operated with electrical control respectively
Platform forms circuit connection.
When copper sheathing and upper limit switch are touched, torque drive lead screw stops uplink；When copper sheathing and loaded switches are touched,
Torque drive lead screw load operating；When copper sheathing and lower position switch are touched, torque drive lead screw stops downlink.
When electric device for valve is in the operation phase, the copper sheathing is between upper limit switch and loaded switches；Valve
When valve electric device is in load phase, the copper sheathing is between loaded switches and lower position switch.
Further, it is equipped on the pipeline of first interface entrance for protecting three-position four-way electromagnetic directional valve to change
To the first overflow valve of safety, first overflow valve is electromagnetic relief valve, and forms circuit with electric control console
Connection.
Further, the second overflow valve is communicated on the pipeline at fuel pump outlet.
Further, one-way throttle valve is respectively arranged on the pipeline of oil cylinder oil inlet mouth and oil outlet.
Further, filter and unidirectional is also equipped on the pipeline between the fuel tank and three-position four-way electromagnetic directional valve
Valve, filter are arranged on the pipeline between oil pump and fuel tank.
Further, the electric control console includes industrial personal computer, PLC and expanding element, which has liquid
Crystalline substance display touch screen, the parameter that PLC receives the data of industrial personal computer transmission and torque sensor is fed back, the proportional overflow
The proportional overflow output of valve is adjusted to be controlled via the expanding element of PLC.
Further, the cooling dress to cool down for the motor to electric device for valve is additionally provided on the workbench
It sets.
The beneficial effects of the present invention are: providing load torque, Ke Yiwei by hydraulic control device for electric device for valve
Electric device for valve simulates more true valve operating status, improves the efficiency of electric device for valve test, makes to test
Journey becomes simpler, and test parameter is in Dynamically Announce, and accuracy can also be guaranteed, and the degree of automation is improved.
Using EVC touch panel computer and PLC, replace contactor, relay control system, to sensor and detection instrument into
Row real-time data acquisition, while friendly man-machine interface is established, keep entire pilot system operation operation simpler intuitive, and
Can be with real time modifying and monitoring control parameter, and record and export.
Increase circulating water cooling device, the motor of timely coolant valve electric device guarantees that entire life test is smoothly complete
At.
It is respectively arranged with one-way throttle valve on the pipeline of oil cylinder oil inlet mouth and oil outlet, it can be true through two one-way throttle valves
The normal work for protecting oil cylinder makes the piston of oil cylinder when flexible with stable oil pressure cntrol, hair when avoiding oil cylinder piston flexible
Raw shake and inclination.Filter and check valve, mistake are also equipped on pipeline between fuel tank and three-position four-way electromagnetic directional valve
Filter is arranged on the pipeline between oil pump and fuel tank, keeps the cleaning of oil cylinder hydraulic oil, the main function of check valve is to prevent
Hydraulic oil reflux fuel pump outlet, damages oil pump, it is ensured that there is the hydraulic system of hydraulic control device stable oil pressure to work.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is the load characteristic schematic diagram of testing stand before being transformed.
Fig. 2 is the load characteristic schematic diagram when present invention is less than 1200N.M electric device for valve using nominal torque.
Fig. 3 be present invention valve in use be opened to and close to the standard testing time schematic diagram.
Fig. 4 is the hydraulic principle figure of hydraulic control device of the invention.
Fig. 5 is the schematic diagram of pilot system of the present invention.
Fig. 6 is the attachment structure schematic diagram between torque drive lead screw and ut socket, workbench of the invention.
Fig. 7 is the whole control flow schematic diagram of pilot system of the present invention.
Label in above-mentioned attached drawing is as follows: workbench 1, platen 11, column 12, upper limit switch 13, lower position switch 14,
Loaded switches 15,5 ut socket 6 of cooling device, torque sensor 7, torque drive lead screw 8, triatic stay 9, copper sheathing 91；Valve
Electric device 2；Hydraulic control device 3, fuel tank 31, three-position four-way electromagnetic directional valve 32, oil cylinder 33, oil pump 34, proportional pressure control valve
35, the first overflow valve 36, the second overflow valve 37, one-way throttle valve 38, filter 39, piston 331, electric control console 4.
Specific embodiment
Below in conjunction with attached drawing, the present invention is described in further detail.These attached drawings are simplified schematic diagram, only with
Illustration illustrates basic structure of the invention, therefore it only shows the composition relevant to the invention.
(embodiment 1)
As shown in fig. 4 to fig. 6, the present embodiment can prevent hydraulic oil from flowing back and stablizing the electric device for valve longevity of oil pressure
The pilot system of life, including workbench 1, electric device for valve 2, for providing the hydraulic of load torque to electric device for valve 2
Control device 3 and electric control console 4, electric control console 4 respectively with electric device for valve 2 and hydraulic control
Device 3 and workbench 1 form circuit connection.
Hydraulic control device 3 includes fuel tank 31, three-position four-way electromagnetic directional valve 32 and oil cylinder 33,3-position 4-way electromagnetism
Reversal valve 32 has first interface, second interface, third interface and the 4th interface, and fuel tank 31 and first interface pipeline connect
It is logical, oil pump 34 is provided on the pipeline, the oil inlet and oil outlet of oil cylinder 33 connect through pipeline and second interface and third respectively
Mouth connection, the 4th interface is connected to through oil return pipe with fuel tank 31, on the pipeline of the oil return pipe between the 4th interface and fuel tank 31
It is provided with proportional pressure control valve 35 and pressure sensor.
Electric device for valve 2 is mounted on workbench 1, and the output revolving shaft lower end of electric device for valve 2 is by torque drive
Lead screw 8 is connect with the piston 331 of oil cylinder 33, and torque drive lead screw 8 is threadedly engaged with the formation of workbench 1, torque drive silk
The upper end of thick stick 8 connect transmission with output revolving shaft through torque sensor 7；Torque drive lead screw 8 through torque sensor 7 drive with
1 helical rotation of workbench, which is realized, to move up and down, so that the piston 331 of oil cylinder 33 be driven to move up and down；Electric device for valve 2
The torque of offer is consistent with the torque characteristics under valve real work state.
When receiving piston 331 loads torque and tested, electric device for valve 2 is successively undergone electric device for valve 2
Operation phase and load phase, in load phase, torque and exist between the working time linear that electric device for valve 2 provides
Proportionate relationship.
Workbench 1 includes the four columns 12 of platen 11 and bottom, and electric device for valve 2 is installed through ut socket 6
It on platen 11, is formed and is threadedly engaged between torque drive lead screw 8 and platen 11, torque drive lead screw 8 passes through nut set
Cylinder 6 is simultaneously threadedly engaged with ut socket 6 and connect；Connection structure between torque drive lead screw 8 and ut socket 6 is,
Axle sleeve is installed in ut socket 6, is rotatably assorted between axle sleeve and ut socket 6 by ball bearing formation, torque drive
Lead screw 8 passes through axle sleeve and is threadedly engaged with the formation of the inner ring of axle sleeve, due to having the presence of ut socket 6 first is that can incite somebody to action
Electric device for valve 2 is stably fixed on platen 11, second is that the stability of torque drive lead screw 8 can effectively be kept, is kept away
Exempt from torque drive lead screw 8 and the phenomenon that double swerve occurs when pulling 331 uplink of piston.
8 lower end of torque drive lead screw passes through platen 11 and connect with piston 331, the lower end peace of torque drive lead screw 8
Equipped with for keeping the triatic stay 9 of 8 stability of torque drive lead screw, triatic stay 9 is matched with 8 spiral of torque drive lead screw
It closes, the both ends of triatic stay 9 are separately installed with copper sheathing 91, and copper sheathing 91 is semicircular structure, and the copper sheathing 91 at both ends is distinguished
It is contacted with the column 12 of two sides.Copper sheathing 91 is semicircular structure primarily to avoiding occurring card plug between copper sheathing and column
The phenomenon that.
The presence of triatic stay 9 avoids torque drive lead screw 8 also for the stability for keeping torque drive lead screw 8
Lower end there is the phenomenon that double swerve when pulling 331 uplink of piston.
Upper limit switch 13, lower position switch 14 and loaded switches 15 are provided on column 12, loaded switches 15 are located at
Between upper limit switch 13 and lower position switch 14, upper limit switch 13, lower position switch 14 and loaded switches 15 are distinguished
Circuit connection is formed with electric control console 4.
When copper sheathing 91 and upper limit switch 13 are touched, torque drive lead screw 8 stops uplink；When copper sheathing 91 and load
When switch 15 is touched, 8 load operating of torque drive lead screw；When copper sheathing 91 and lower position switch 14 are touched, torque drive
Lead screw 8 stops downlink.
When electric device for valve 2 is in the operation phase, copper sheathing 91 is located at upper limit switch 13 and loaded switches 15
Between, when electric device for valve 2 is in load phase, copper sheathing 91 is between loaded switches 15 and lower position switch 14.
When copper sheathing 91 is in contact with loaded switches 15, PLC controls proportional pressure control valve work, so that piston is to torque drive
Lead screw 8 provides load torque, and the output revolving shaft of electric device for valve 2 at this time starts load running, when copper sheathing 91 and lower limit
Torque drive lead screw 8 stops downlink when bit switch 14 is in contact.
It is equipped on the pipeline of first interface entrance for protecting three-position four-way electromagnetic directional valve 32 to commutate safety
The first overflow valve 36, the first overflow valve 36 be electromagnetic relief valve, and with electric control console 4 formed circuit connection.
It can make three-position four-way electromagnetic directional valve 32 when commutation by the electromagnetic relief valve, by high pressure caused by backpressure circuit
It discharges, for the high pressure instantaneous herk at back pressure end to low pressure, input end, impact and influence input circuit oil pump etc. are low when avoiding commutating
Press the normal use of component, it is ensured that the service life of hydraulic input terminal, the first overflow valve 36 undertake 3-position 4-way electromagnetic switch
32 intelligent protection commutation function of valve.
The second overflow valve 37 is communicated on the pipeline in 34 exit of oil pump.In the oil inlet pipe of the second overflow valve 37
On be provided with pressure gauge, can control the oil pressure inputted from oil pump 34 by the second overflow valve 37, stablize and enter first and connect
The oil pressure of oil cylinder 33 when mouth avoids unstable oil pressure from generating impact shadow to the equal components of three-position four-way electromagnetic directional valve 32
It rings.
One-way throttle valve 38 is respectively arranged on the pipeline of 33 oil inlet of oil cylinder and oil outlet.Through two one-way throttle valves
38 may insure the normal work of oil cylinder 33, keep away the piston 331 of oil cylinder 33 with stable oil pressure cntrol, when flexible
Exempt from that shake and inclination occur when oil cylinder piston 331 stretches.Pipeline between fuel tank 31 and three-position four-way electromagnetic directional valve 32
On be also equipped with filter 39 and check valve, filter 39 is arranged on the pipeline between oil pump 34 and fuel tank 31, keep
The cleaning of 33 hydraulic oil of oil cylinder, the main function of check valve are to prevent hydraulic oil reflux fuel pump outlet, damage oil pump 34, it is ensured that
There is the hydraulic system of hydraulic control device 3 stable oil pressure to work.
The cooling device 5 to cool down for the motor to electric device for valve 2 is additionally provided on workbench 1.It is trying
2 life test of electric device for valve needs to do 10000 times or so long run tests during testing, and electric device for valve 2
Motor be short time duty motor, the phenomenon that long time continuous working motor can generate fever, so on workbench 1
It is additionally provided with the cooling device 5 to cool down for the motor to electric device for valve 2, cooling device 5 is for cooling in time
The motor of electric device for valve 2 guarantees that entire life test smoothly completes.
Electric control console 4 includes industrial personal computer, PLC(programmable controller) and expanding element, the industrial personal computer is with liquid
Crystalline substance display touch screen, the parameter that PLC receives the data of industrial personal computer transmission and torque sensor 7 is fed back, proportional pressure control valve
The expanded unit control of 35 overflow ratio.Upper limit switch 13, lower position switch 14 and loaded switches 15 respectively with PLC
Electrical connection, is controlled by PLC.
When practical operation, operator requires the test parameters of electric device for valve 2 to pass through the liquid crystal on industrial personal computer
Show that touch screen inputs industrial personal computer, industrial personal computer is modified conversion for parameter is inputted, sends PLC to, and PLC is by test parameters and torsion
The torque parameter of the electric device for valve 2 of 7 Real-time Feedback of square sensor is compared operation, while after carrying out nonlinear compensation
Send expanding element to, parameter is converted to normalized current control proportional pressure control valve 35,35 basis of proportional pressure control valve by expanding element
Input current adjusts the back pressure value in 33 backpressure circuit of oil cylinder, and economy makes the piston 331 of oil cylinder 33 move up and down generation
Resistance variation, the load torque of the resistance variation control valve electric device 2 of piston 331, makes torque fully according to valve
Torque loads characteristic variations under true operation working condition, the truth i.e. as shown in Fig. 2, electric device for valve 2
Loading procedure, i.e., represented by figure bend part.
It is such as indicated with thrust, i.e., is run, closed with maximum thrust, load characteristic such as Fig. 2 with the maximum thrust of one third
It is shown.2 one open-one close of electric device for valve is that operating is primary.Every operating primary time is 40s.10s is opened, 10s is stopped, is closed
10s stops 10s.Operation time characteristic is as shown in Fig. 3.
If 2 torque of electric device for valve is because interference generates fluctuation, torque sensor 7 can make an immediate response, and PLC can be same
Step section proportional pressure control valve 35 makes the hydraulic variation of backpressure circuit meet the test requirements document of torque.The electricity of electric device for valve 2
The cooling control of machine is directly controlled by PLC according to temperature change.So whole control flow such as Fig. 7 institute of pilot system
Show.
In the hydraulic system of hydraulic control device 3, proportional pressure control valve 35 controls the oil pressure in 33 oil outlet pipe of oil cylinder
(i.e. the back pressure of oil cylinder 33), proportional pressure control valve 35 can change the size of overflow port according to test requirements document, complete pipe where control
The oil pressure on road；The piston 331 of oil cylinder 33 can make oil during stretching or retraction, through three-position four-way electromagnetic directional valve 32
The oil outlet pipe of cylinder 33 is all held on the oil return pipe at 35 place of proportional pressure control valve.The input of hydraulic system offer oil cylinder 33
Oil pressure, oil pump 34, the first overflow valve 36, each pressure gauge of the second overflow valve 37 form the input terminal of hydraulic system；Proportional pressure control valve
Back pressure in 35 control 33 oil outlet pipe of oil cylinder realizes that torque proportion adjustment when loading to high pressure, pressure sensor are realized real
When monitor high pressure end pressure, complete monitoring back pressure, connection electric control console 4 realizes protection to hydraulic system, their structures
At back pressure output end.
Pilot system can be automatically by the data point reuse load of setting, and load characteristic is consistent with the true operation of valve, touches
Screen interface facilitates realization to operate and setting, and the real-time tracking of 2 output torque of electric device for valve adjusts control, subjects
Circulating cooling, the automation control process of electric device for valve 2 load and process data recording.
Taking the above-mentioned ideal embodiment according to the present invention as inspiration, through the above description, relevant staff is complete
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention
Property range is not limited to the contents of the specification, it is necessary to which the technical scope thereof is determined according to the scope of the claim.
Claims (1)
1. a kind of pilot system in the electric device for valve service life for preventing hydraulic oil from flowing back and stablizing oil pressure, including workbench (1),
Electric device for valve (2), the hydraulic control device (3) for loading torque to electric device for valve (2) offer, further include electrical
Control station (4), cooling device (5), ut socket (6) and torque sensor (7)；The workbench (1) includes platen
(11) and the four columns of bottom (12)；Upper limit switch (13) and lower position switch are provided on the column (12)
(14)；Upper limit switch (13) and lower position switch (14) form circuit connection with electric control console (4) respectively；Described
Electric control console (4) forms circuit connection with electric device for valve (2) and hydraulic control device (3) respectively；The liquid
Pressure control device (3) includes fuel tank (31) and oil cylinder (33)；The electric device for valve (2) is mounted on workbench (1)；
It is characterized by:
The cooling device to cool down for the motor to electric device for valve (2) is additionally provided on the workbench (1)
(5)；
The electric device for valve (2) is mounted on platen (11) through ut socket (6)；
The hydraulic control device (3) further includes three-position four-way electromagnetic directional valve (32)；Three-position four-way electromagnetic directional valve (32)
With first interface, second interface, third interface and the 4th interface；
The fuel tank (31) and first interface pipeline connection, is provided with oil pump (34) on the pipeline；Oil pump (34) is low pressure
Element；Respectively through pipeline and second interface and third orifice, the 4th interface passes through back the oil inlet and oil outlet of oil cylinder (33)
Oil pipe is connected to fuel tank (31)；On the pipeline of oil return pipe between the 4th interface and fuel tank (31), it is provided with proportional pressure control valve
(35) and pressure sensor；On the pipeline of first interface entrance, it is equipped with for protecting three-position four-way electromagnetic directional valve
(32) the first overflow valve (36) of commutation safety；On the pipeline in oil pump (34) exit, it is communicated with the second overflow valve (37)；
First overflow valve (36) is electromagnetic relief valve, and forms circuit connection with electric control console (4)；Pass through
The electromagnetic relief valve can make three-position four-way electromagnetic directional valve (32) when commutation, and high pressure caused by backpressure circuit is discharged
Fall, the high pressure instantaneous herk at back pressure end is to low pressure, input end when avoiding commutation；Hydraulic system provides the input oil pressure of oil cylinder (33)；
Oil pump (34), the first overflow valve (36), the second overflow valve (37) and pressure gauge form the input terminal of hydraulic system；Proportional pressure control valve
(35) the torque proportion adjustment when back pressure in oil cylinder (33) oil outlet pipe is realized to high pressure load is controlled, pressure sensor is realized
Real-time detection high pressure end pressure；
Torque drive lead screw (8) lower end passes through platen (11) and connect with piston (331), under torque drive lead screw (8)
End is equipped with the triatic stay (9) for keeping torque drive lead screw (8) stability, triatic stay (9) and torque drive silk
Thick stick (8) threaded engagement, the both ends of triatic stay (9) are separately installed with copper sheathing (91), and copper sheathing (91) is semicircular structure, and two
The copper sheathing (91) at end is contacted with the column of two sides (12) respectively；
The output revolving shaft lower end of the electric device for valve (2) by torque drive lead screw (8) and oil cylinder (33) piston (331)
Connection；The torque drive lead screw (8) forms with workbench (1) and is threadedly engaged, and the upper end of torque drive lead screw (8) is passed through torque
Sensor (7) connect transmission with output revolving shaft (21)；Torque drive lead screw (8) drives and workbench (1) spiral shell through torque sensor (7)
Dynamic realize of rotation moves up and down, so that the piston (331) of oil cylinder (33) be driven to move up and down；
Loaded switches (15) are additionally provided on the column (12)；Loaded switches (15) are located at upper limit switch (13) and lower limit
Between bit switch (14)；Loaded switches (15) and electric control console (4) form circuit connection；When copper sheathing (91) and upper limit
When switching (13) touching, torque drive lead screw (8) stops uplink；When copper sheathing (91) and loaded switches (15) are touched, torque is passed
Dynamic lead screw (8) load operating；When copper sheathing (91) and lower position switch (14) are touched, torque drive lead screw (8) stops downlink；
For the electric device for valve (2) in life test, electric device for valve (2) successively undergoes operation phase and load rank
Section；In load phase, torque and there are linear ratio relations between the working time that electric device for valve (2) provides；
On the oil inlet of above-mentioned oil cylinder (33) and the pipeline of oil outlet, it is respectively arranged with one-way throttle valve (38)；Described
Filter (39) and check valve are also equipped on pipeline between fuel tank (31) and three-position four-way electromagnetic directional valve (32)；Filter
(39) on the pipeline being arranged between oil pump (34) and fuel tank (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611029051.2A CN106768914B (en) | 2014-03-14 | 2014-03-14 | It can prevent hydraulic oil reflux and stablize the pilot system in the electric device for valve service life of oil pressure |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410095101.1A CN103940595B (en) | 2014-03-14 | 2014-03-14 | Service life test bed for valve electric device |
| CN201611029051.2A CN106768914B (en) | 2014-03-14 | 2014-03-14 | It can prevent hydraulic oil reflux and stablize the pilot system in the electric device for valve service life of oil pressure |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410095101.1A Division CN103940595B (en) | 2014-03-14 | 2014-03-14 | Service life test bed for valve electric device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106768914A CN106768914A (en) | 2017-05-31 |
| CN106768914B true CN106768914B (en) | 2019-07-26 |
Family
ID=51188359
Family Applications (5)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611029134.1A Expired - Fee Related CN106568593B (en) | 2014-03-14 | 2014-03-14 | With loading and the electric device for valve service life experiment system for protection of transfiniting |
| CN201611023110.5A Pending CN106644427A (en) | 2014-03-14 | 2014-03-14 | Automation control electric valve actuator life test system capable of non-linear compensation |
| CN201611023097.3A Pending CN106707052A (en) | 2014-03-14 | 2014-03-14 | Electric valve apparatus service life test system capable of carrying out automatic circulation cooling |
| CN201410095101.1A Expired - Fee Related CN103940595B (en) | 2014-03-14 | 2014-03-14 | Service life test bed for valve electric device |
| CN201611029051.2A Expired - Fee Related CN106768914B (en) | 2014-03-14 | 2014-03-14 | It can prevent hydraulic oil reflux and stablize the pilot system in the electric device for valve service life of oil pressure |
Family Applications Before (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611029134.1A Expired - Fee Related CN106568593B (en) | 2014-03-14 | 2014-03-14 | With loading and the electric device for valve service life experiment system for protection of transfiniting |
| CN201611023110.5A Pending CN106644427A (en) | 2014-03-14 | 2014-03-14 | Automation control electric valve actuator life test system capable of non-linear compensation |
| CN201611023097.3A Pending CN106707052A (en) | 2014-03-14 | 2014-03-14 | Electric valve apparatus service life test system capable of carrying out automatic circulation cooling |
| CN201410095101.1A Expired - Fee Related CN103940595B (en) | 2014-03-14 | 2014-03-14 | Service life test bed for valve electric device |
Country Status (1)
| Country | Link |
|---|---|
| CN (5) | CN106568593B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106441855B (en) * | 2014-03-14 | 2018-08-17 | 杨卫中 | The pilot system in the electric device for valve service life with torque drive leading screw and triatic stay |
| CN105424349A (en) * | 2015-12-16 | 2016-03-23 | 常州电站辅机总厂有限公司 | Device for testing service life of multi-turn valve electric device |
| CN105910809B (en) * | 2016-06-02 | 2018-06-22 | 昆山迈思特自动化科技有限公司 | A kind of safety valve of oil tank performance test machine |
| CN106840645B (en) * | 2017-04-11 | 2023-06-02 | 兰州理工大学温州泵阀工程研究院 | Static pressure life test system for valve |
| CN107553123A (en) * | 2017-10-10 | 2018-01-09 | 浙江旋东阀门有限公司 | Intelligent Universal drive machine |
| CN109519426A (en) * | 2018-11-28 | 2019-03-26 | 江苏沛源泵业制造有限公司 | One kind being used for the grease proofing loop apparatus of hydraulic cylinder |
| CN109520724B (en) * | 2018-12-24 | 2024-09-17 | 中国船舶重工集团公司第七一九研究所 | Underwater ball valve load simulation device and underwater ball valve executing mechanism test method |
| CN110450099B (en) * | 2019-09-16 | 2024-09-10 | 三一重机有限公司 | Shaft sleeve pressing system and sleeve pressing machine |
| CN112935060A (en) * | 2021-01-25 | 2021-06-11 | 广东思豪内高压科技有限公司 | Internal high-pressure forming device for stainless steel pipe fitting and control system thereof |
| CN112747914B (en) * | 2021-01-28 | 2023-03-14 | 卡斯托智能科技江阴有限公司 | Fatigue life test bench and method for electric actuator |
| CN113107459B (en) * | 2021-03-29 | 2022-02-15 | 西安石油大学 | Oil displacement sand pipe model sand filling-discharging integrated device and experimental method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7028705B1 (en) * | 2003-01-28 | 2006-04-18 | Barksdale, Inc. | High torque failsafe valve operator |
| CN102001168A (en) * | 2010-09-08 | 2011-04-06 | 宁波伊士通控制技术有限公司 | Novel hydraulic servo pressure-relief mode control system |
| CN201837691U (en) * | 2010-09-26 | 2011-05-18 | 黄山市天翔阀门有限公司 | Life testing machine for multi-turn valve electric actuator |
| CN202383219U (en) * | 2011-12-27 | 2012-08-15 | 天津二通驱动设备制造有限公司 | Service life test bench of multi-turn valve electric device |
| CN103343761A (en) * | 2013-07-19 | 2013-10-09 | 南京工业大学 | Hydraulic loading device |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100832345B1 (en) * | 2006-02-24 | 2008-05-26 | 재단법인 한국기기유화시험연구원 | Leak rate and life cycles test system of pneumatic angle valve for vacuum |
| CN201069423Y (en) * | 2007-07-10 | 2008-06-04 | 上海新三思计量仪器制造有限公司 | Limiting mechanism of hydraulic material testing machine |
| CN101221093B (en) * | 2007-12-28 | 2010-08-25 | 天津百利二通机械有限公司 | Self-loading test mechanism of multi-slewing valve electrical device |
| CN201208801Y (en) * | 2008-05-19 | 2009-03-18 | 重庆科技学院 | Range control device for hydraulic press |
| CN101722531A (en) * | 2008-10-22 | 2010-06-09 | 韦金权 | Hydraulic circuit of hydraulic gantry movable punching head type blanking machine |
| KR101261803B1 (en) * | 2010-12-14 | 2013-05-07 | 한국세라믹기술원 | Lifetime testing apparatus of a ceramic disk for water valve |
| CN102607752A (en) * | 2011-01-21 | 2012-07-25 | 黄山良业阀门有限公司 | Device for continuously testing opening and closing torques of valve pneumatic device and test method |
| CN102493974B (en) * | 2011-12-28 | 2014-11-05 | 中国人民解放军65185部队 | Hydraulic oil circuit suitable for tests of multiple kinds of hydraulic components |
| CN203083811U (en) * | 2012-12-19 | 2013-07-24 | 卓旦春 | Valve service life testing system |
| CN203272289U (en) * | 2013-05-09 | 2013-11-06 | 浙江工商职业技术学院 | Electromagnetic unloading loop device |
-
2014
- 2014-03-14 CN CN201611029134.1A patent/CN106568593B/en not_active Expired - Fee Related
- 2014-03-14 CN CN201611023110.5A patent/CN106644427A/en active Pending
- 2014-03-14 CN CN201611023097.3A patent/CN106707052A/en active Pending
- 2014-03-14 CN CN201410095101.1A patent/CN103940595B/en not_active Expired - Fee Related
- 2014-03-14 CN CN201611029051.2A patent/CN106768914B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7028705B1 (en) * | 2003-01-28 | 2006-04-18 | Barksdale, Inc. | High torque failsafe valve operator |
| CN102001168A (en) * | 2010-09-08 | 2011-04-06 | 宁波伊士通控制技术有限公司 | Novel hydraulic servo pressure-relief mode control system |
| CN201837691U (en) * | 2010-09-26 | 2011-05-18 | 黄山市天翔阀门有限公司 | Life testing machine for multi-turn valve electric actuator |
| CN202383219U (en) * | 2011-12-27 | 2012-08-15 | 天津二通驱动设备制造有限公司 | Service life test bench of multi-turn valve electric device |
| CN103343761A (en) * | 2013-07-19 | 2013-10-09 | 南京工业大学 | Hydraulic loading device |
Non-Patent Citations (2)
| Title |
|---|
| 《智能型阀门电动装置寿命试验系统》;姜迎新 等;《数字技术与应用》;20121231(第10期);第11、14页 |
| 《阀门电动装置 寿命试验规程》;国家机械工业局;《中华人民共和国机械行业标准 JB/T8862-2000》;20000330;第1-4页 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106568593B (en) | 2019-03-01 |
| CN106644427A (en) | 2017-05-10 |
| CN106768914A (en) | 2017-05-31 |
| CN106707052A (en) | 2017-05-24 |
| CN106568593A (en) | 2017-04-19 |
| CN103940595B (en) | 2017-01-11 |
| CN103940595A (en) | 2014-07-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106768914B (en) | It can prevent hydraulic oil reflux and stablize the pilot system in the electric device for valve service life of oil pressure | |
| CN112213958B (en) | Electro-hydraulic control comprehensive simulation test platform | |
| CN105022375B (en) | Flexibility recipe configuration method for engine line | |
| CN105298991A (en) | Experiment platform and experiment method for virtual loading and controlling of engineering mechanical work conditions | |
| CN101818632A (en) | Digital automatic oil extraction control system | |
| CN2884175Y (en) | Electric cylinder testing platform | |
| CN101871447A (en) | Pump controller | |
| CN103116128A (en) | Breaker overload testing device and operation method thereof | |
| CN109061522A (en) | A kind of system and method for power-supply device self -support | |
| CN105196603A (en) | Trash compacting machine and driving system thereof | |
| CN104897382A (en) | Computer aided fuel oil valve automatic detection system | |
| CN106586030B (en) | Equivalent coordination valve test bench | |
| CN106441855B (en) | The pilot system in the electric device for valve service life with torque drive leading screw and triatic stay | |
| CN203849009U (en) | A valve electric apparatus usage life test stand | |
| CN103629190B (en) | A kind of equilibrium valve does not mate the measuring method and device that cause load jitter | |
| CN202645971U (en) | Analog test bed for air compressor | |
| CN107560928A (en) | A kind of Based on Electro-hydraulic Loading Servo System data acquistion and control system | |
| CN206339442U (en) | Hydraulic pressure intelligently loads detection means | |
| CN115076440A (en) | Method, processor and device for calibrating current of proportional solenoid valve | |
| CN107387494A (en) | A kind of aggregative model hydraulic test bench | |
| CN203907236U (en) | Control system with high reliability for oil source | |
| CN103604454B (en) | A kind of tower shelf type oil pumping machine scrambler detection system | |
| CN107401535B (en) | Hydraulic motor test bed | |
| CN110450851A (en) | A kind of electric hydraulic power-assisted steering pump controller detection system | |
| CN203720643U (en) | Detection test system of frame car computer control module |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190726 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |