CN109269792A - A kind of safety equipment hydraulic damper measure and control device and its application method - Google Patents
A kind of safety equipment hydraulic damper measure and control device and its application method Download PDFInfo
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- CN109269792A CN109269792A CN201811325769.5A CN201811325769A CN109269792A CN 109269792 A CN109269792 A CN 109269792A CN 201811325769 A CN201811325769 A CN 201811325769A CN 109269792 A CN109269792 A CN 109269792A
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- 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
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
- G05B19/054—Input/output
Abstract
A kind of safety equipment hydraulic damper measure and control device and its application method, belong to measure and control device field.The present invention is directed to existing defect, provides a kind of safe, high reliablity, multichannel observing and controlling safety equipment hydraulic damper measure and control device and its application method.In the present invention, Hydraumatic automatic clamping system and simulation working condition measurement system are connect with central control system, Hydraumatic automatic clamping system and simulation working condition measurement system are connect with hydraulic power unit, for receiving the fuel feeding of hydraulic power unit, Hydraumatic automatic clamping system and simulation working condition measurement system are connect with tested device.Central control system controls the work of Hydraumatic automatic clamping system, and hydraulic power unit is to Hydraumatic automatic clamping system fuel feeding；Central control system controls the pressure maintaining of Hydraumatic automatic clamping system, and control simulation working condition measurement system work, hydraulic power unit is to simulation working condition measurement system fuel feeding；Central control system acquires pressure value and shift value in real time, draws curve graph, and in host computer real-time display.
Description
Technical field
The invention belongs to measure and control device fields, and in particular to a kind of safety equipment hydraulic damper measure and control device and its use
Method.
Background technique
Hydraulic damper used in power plant is the device that safeguard protection is played in a kind of pair of heat distribution pipeline operation.In nominal situation
Under, hydraulic damper does not hinder heat distribution pipeline to run.When heat distribution pipeline is by special interior external impacts, pipeline occurs instantaneous big
Width displacement causes pipeline to collapse in weakness tearing or other connection hangers, causes not expected loss and safety to power plant
Accident.At this moment the hydraulic damper installed will prevent such case.
This hydraulic damper measure and control device is exactly the special operation condition of simulative power plant heat distribution pipeline, by electrohydraulic servo system and
TT&C system linkage, to set the parameter of hydraulic damper apparatus and examine its functional characteristic.
It is therefore desirable to a kind of safe, high reliablity, multichannel observing and controlling safety equipment hydraulic damper measure and control device
And its application method.
Summary of the invention
The present invention is for existing safety equipment hydraulic damper measure and control device is dangerous, reliability is low, observing and controlling is single
Defect provides a kind of safe, high reliablity, multichannel observing and controlling safety equipment hydraulic damper measure and control device and its use
Method.
A kind of technical solution of safety equipment hydraulic damper measure and control device according to the present invention is as follows:
A kind of safety equipment hydraulic damper measure and control device according to the present invention, it include Hydraumatic automatic clamping system and
Working condition measurement system is simulated, the Hydraumatic automatic clamping system and simulation working condition measurement system are connect with central control system,
The Hydraumatic automatic clamping system and the input terminal for simulating working condition measurement system are connect with the output end of hydraulic power unit, for connecing
The fuel feeding of hydraulic power unit is received, the Hydraumatic automatic clamping system and the output end for simulating working condition measurement system connect with tested device
It connects.
Further: the Hydraumatic automatic clamping system includes hydraulic automatic gripping device, No.1 individual event proportioning valve, No.1
Solenoid valve, No.1 pressure reducing valve and No. four solenoid valves, the first end of No. four solenoid valves and the output end of hydraulic power unit connect, institute
The second end for stating No. four solenoid valves is connect with the first end of No.1 solenoid valve, and the No.1 pressure reducing valve accesses No.1 solenoid valve and four
On the pipeline connected between number solenoid valve, the second end of the No.1 solenoid valve and one end end of hydraulic automatic gripping device connect
Connect, the third end of the No.1 solenoid valve is connect with the input terminal of No.1 individual event proportioning valve, the No.1 individual event proportioning valve it is defeated
The connection of the other end of outlet and hydraulic automatic gripping device, the tested device is set among hydraulic automatic gripping device and liquid
The input terminal of the actuating station and tested device of pressing automatic clamping device connects, and the control terminal of the hydraulic automatic gripping device is in
Entreat the output end connection of control system.
Further: the simulation working condition measurement system includes load cylinder, No. two individual event proportioning valves, No. three individual event ratios
Valve, No. two solenoid valves, accumulator, No. three solenoid valves and No. two pressure reducing valves, the first end and hydraulic power unit of No. three solenoid valves
Output end connection, the second end of No. three solenoid valves connect with the first end of No. two solenoid valves, and No. two pressure reducing valves connect
Enter on the pipeline connected between No. two solenoid valves and No. three solenoid valves, the first of the input terminal of the accumulator and No. two solenoid valves
End connection, the second end of No. two solenoid valves and third end respectively with No. two individual event proportioning valves and No. three individual event proportioning valves one
The other end of end connection, No. two individual event proportioning valves and No. three individual event proportioning valves is connect with the both ends of load cylinder respectively, described
The input terminal of the output end and tested device that load cylinder connects.
Further: the model NYZT-DZD-01 of the hydraulic automatic gripping device；The model of the accumulator
NXQ-L40/31.5-Y。
Further: pressure switch is equipped between the No.1 individual event proportioning valve and No.1 solenoid valve；The tested dress
It sets outside and is equipped with displacement sensor and pressure sensor, institute's displacement sensors are connect with central control system, and the pressure passes
Sensor is connect by signal transmitting device with central control system, and the central control system is connect with host computer.
A kind of application method based on the safety equipment hydraulic damper measure and control device, it the following steps are included:
Step 1: central control system control Hydraumatic automatic clamping system work, No. four solenoid valves are opened, hydraulic power unit pair
Hydraumatic automatic clamping system fuel feeding；
Step 2: central control system controls the pressure maintaining of Hydraumatic automatic clamping system, control simulation working condition measurement system works,
No. four solenoid valves are closed, and No. three solenoid valves are opened, and hydraulic power unit is to simulation working condition measurement system fuel feeding；
Step 3: central control system acquires pressure value and shift value in real time, curve graph is drawn, and show in real time in host computer
Show.
Further: in step 1, the central control system PLC controls No. four solenoid valves and opens, and oil liquid successively passes through
The oil circuit for crossing No. four solenoid valves, No.1 solenoid valve, No.1 individual event proportioning valve and hydraulic automatic gripping device is connect with tested device；
No.1 pressure reducing valve depressurizes No. four solenoid valves, the clamping of the No.1 solenoid valve control hydraulic automatic gripping device and pine
It is de-, the clamp speeds of the No.1 individual event ratio valve regulation hydraulic automatic gripping device；To realize hydraulic power unit to it is hydraulic from
Dynamic clamping system fuel feeding.
Further: the central control system PLC controls No. four solenoid valves and closes, Hydraumatic automatic clamping system pressure maintaining,
The central control system PLC controls No. three solenoid valves and opens, and oil liquid successively passes through No. three solenoid valves, No. two solenoid valves, No. two
The oil circuit of individual event proportioning valve, No. three individual event proportioning valves and load cylinder is connect with tested device；No. two pressure reducing valves are to No. three solenoid valves
It is depressurized, is realized by No. two solenoid valves, No. two individual event proportioning valves and No. three individual event proportioning valves and the left and right of tested device is rushed
It hits, steadily pressurizes through No. two individual event proportioning valves and No. three individual event proportioning valves to load cylinder, load cylinder low speed walking drives tested dress
Lever is pushed to nominative testing position by the lever movement set, and displacement sensor feeds back the displacement signal of tested device to center
Processor, hydraulic power unit load, accumulator accumulation of energy, pressure sensor feed back the pressure signal of tested device, and pressure signal reaches
After predetermined pressure, the impact of No. two individual event proportioning valves and No. three individual event proportioning valves to load cylinder realization friction speed, to realize
Hydraulic power unit is to simulation working condition measurement system fuel feeding.
Further: in step 3, the curve graph includes curve of load figure, displacement curve figure and speed curve diagram.
A kind of beneficial effect of safety equipment hydraulic damper measure and control device according to the present invention is:
A kind of safety equipment hydraulic damper measure and control device according to the present invention, it is right using the signal communication function of PLC
Input signal is acquired in real time, the various servo valve co-operatings of instruction testing platform, to realize to the various works being likely to occur
The simulation of condition, to verify the reliability of safety equipment function.The present invention carries out different movements with a hydraulic power unit control two-way
The characteristics of.Hydraulic energy incompressible in hydraulic system is changed into compression energy and stored by accumulator, will when system needs
Compression energy is changed into hydraulic energy and releases, and feeds oil piping system again.
When pipeline is impacted by internal or external power, pipeline will have substantially instantaneous displacement, be mounted on pipeline at this time
Hydraulic damper work.Hydraulic damper keeps its piston rod (lever) motionless by internal control valve blocking, damper at rigid body,
And impact energy suffered by pipeline is quickly transferred on the component that other are connected with damper (usually girder steel).When pipeline is slow
When slow thermal expansion, hydraulic damper does not work, and shows as following pipe motion.
Detailed description of the invention
Fig. 1 is safety equipment hydraulic damper measure and control device schematic diagram；
Fig. 2 is the control block diagram of Fig. 1.
In figure: 1 be hydraulic automatic gripping device, 2 be tested device, 3 be No.1 individual event proportioning valve, 4 be No.1 solenoid valve,
5 it is No.1 pressure reducing valve, 6 be hydraulic power unit, 7 be load cylinder, 8 be No. two individual event proportioning valves, 9 is that No. three individual event proportioning valves, 10 are
No. two solenoid valves, 11 be accumulator, 12 be No. three solenoid valves, 13 be No. four solenoid valves, 14 be No. two pressure reducing valves.
Specific embodiment
Below with reference to embodiment, the following further describes the technical solution of the present invention, and however, it is not limited to this, all right
Technical solution of the present invention is modified or replaced equivalently, and without departing from the spirit and scope of the technical solution of the present invention, should all be contained
Lid is within the protection scope of the present invention.
Embodiment 1
Illustrate the present embodiment in conjunction with Fig. 1 and Fig. 2, in the present embodiment, a kind of safety equipment liquid involved in the present embodiment
Damper measure and control device is pressed, it includes Hydraumatic automatic clamping system and simulation working condition measurement system, the Hydraumatic automatic clamping system
System and simulation working condition measurement system are connect with central control system, the Hydraumatic automatic clamping system and simulation working condition measurement system
The input terminal of system is connect with the output end of hydraulic power unit 6, for receiving the fuel feeding of hydraulic power unit 6, the Hydraumatic automatic clamping
System and the output end for simulating working condition measurement system are connect with tested device 2.
More specifically: the Hydraumatic automatic clamping system include hydraulic automatic gripping device 1, No.1 individual event proportioning valve 3,
No.1 solenoid valve 4, No.1 pressure reducing valve 5 and No. four solenoid valves 13, the first ends of No. four solenoid valves 13 are defeated with hydraulic power unit 6
Outlet connection, the second end of No. four solenoid valves 13 are connect with the first end of No.1 solenoid valve 4, and the No.1 pressure reducing valve 5 connects
Enter on the pipeline connected between No.1 solenoid valve 4 and No. four solenoid valves 13, the second end of the No.1 solenoid valve 4 and hydraulic automatic
One end end of clamping device 1 connects, and the third end of the No.1 solenoid valve 4 is connect with the input terminal of No.1 individual event proportioning valve 3, institute
The output end for stating No.1 individual event proportioning valve 3 is connect with the other end of hydraulic automatic gripping device 1, and the tested device 2 is set to
Among hydraulic automatic gripping device 1 and the actuating station of hydraulic automatic gripping device 1 is connect with the input terminal of tested device 2, described
The control terminal of hydraulic automatic gripping device 1 and the output end of central control system connect.
More specifically: the simulation working condition measurement system includes the load individual event proportioning valve 8, three of cylinder 7, two individual event ratio
9, No. two solenoid valves 10 of example valve, 11, No. three solenoid valves 12 of accumulator and No. two pressure reducing valves 14, the first of No. three solenoid valves 12
End is connect with the output end of hydraulic power unit 6, and the second end of No. three solenoid valves 12 is connect with the first end of No. two solenoid valves 10,
No. two pressure reducing valves 14 access on the pipeline connected between No. two solenoid valves 10 and No. three solenoid valves 12, the accumulator 11
Input terminal is connect with the first end of No. two solenoid valves 10, the second end of No. two solenoid valves 10 and third end respectively with No. two lists
Proportioning valve 8 is connected with one end of No. three individual event proportioning valves 9, No. two individual event proportioning valves 8 and No. three individual event proportioning valves 9 it is another
One end is connect with the both ends of load cylinder 7 respectively, and the output end of the load cylinder 7 is connect with the input terminal of tested device 2.
More specifically: the model NYZT-DZD-01 of the hydraulic automatic gripping device 1；The type of the accumulator 11
Number be NXQ-L40/31.5-Y.
More specifically: pressure switch is equipped between the No.1 individual event proportioning valve 3 and No.1 solenoid valve 4；The quilt
It surveys and is equipped with displacement sensor and pressure sensor outside device 2, institute's displacement sensors are connect with central control system, the pressure
Force snesor is connect by signal transmitting device with central control system, and the central control system is connect with host computer.
A kind of application method based on the safety equipment hydraulic damper measure and control device, it the following steps are included:
Step 1: central control system control Hydraumatic automatic clamping system work, No. four solenoid valves 13 are opened, hydraulic power unit
6 pairs of Hydraumatic automatic clamping system fuel feeding；
Step 2: central control system controls the pressure maintaining of Hydraumatic automatic clamping system, control simulation working condition measurement system works,
No. four solenoid valves 13 are closed, and No. three solenoid valves 12 are opened, 6 pairs of simulation working condition measurement system fuel feeding of hydraulic power unit；
Step 3: central control system acquires pressure value and shift value in real time, curve graph is drawn, and show in real time in host computer
Show.
More specifically: in step 1, the central control system PLC controls No. four solenoid valves 13 and opens, oil liquid according to
It is secondary by No. four solenoid valves 13, No.1 solenoid valve 4, the oil circuit of No.1 individual event proportioning valve 3 and hydraulic automatic gripping device 1 and tested
Device 2 connects；No.1 pressure reducing valve 5 depressurizes No. four solenoid valves 13, and the No.1 solenoid valve 4 controls Hydraumatic automatic clamping dress
It sets 1 clamping and loosens, the No.1 individual event proportioning valve 3 adjusts the clamp speeds of hydraulic automatic gripping device 1；To realize liquid
Press pump station 6 is to Hydraumatic automatic clamping system fuel feeding.
More specifically: in step 2, the central control system PLC controls No. four solenoid valves 13 and closes, it is hydraulic from
Dynamic clamping system pressure maintaining, the central control system PLC control No. three solenoid valves 12 and open, and oil liquid successively passes through No. three solenoid valves
12, the oil circuit and tested device 2 of No. two individual event proportioning valves 9 of individual event proportioning valve 8, three of solenoid valve 10, two and load cylinder 7 connect
It connects；No. two pressure reducing valves 14 depressurize No. three solenoid valves 12, pass through 10, No. two individual event proportioning valves 8 of No. two solenoid valves and No. three
Individual event proportioning valve 9, which is realized, impacts the left and right of tested device 2, through No. two individual event proportioning valves 8 and No. three individual event proportioning valves 9 to load
Cylinder 7 steadily pressurizes, and load 7 low speed of cylinder walking drives the lever movement of tested device 2, lever is pushed to nominative testing position,
Displacement sensor feeds back the displacement signal of tested device 2 to central processing unit, and hydraulic power unit 6 loads, 11 accumulation of energy of accumulator, pressure
The pressure signal of sensor feedback tested device 2, after pressure signal reaches predetermined pressure, No. two individual event proportioning valves 8 and No. three lists
9 pairs of proportioning valve load cylinders 7 of item realize the impact of friction speed, to realize 6 pairs of simulation working condition measurement system fuel feeding of hydraulic power unit.
More specifically: in step 3, the curve graph includes curve of load figure, displacement curve figure and rate curve
Figure.
The present embodiment provides a kind of simulative power plant heat distribution pipeline exceptional operating conditions, realize to the safety guard amount of progress
Change the measure and control device of detection.Fig. 1 is the present embodiment structural schematic diagram, and serial number part designates wherein main element in figure.
This measure and control device divides two-way to be controlled.All the way be Hydraumatic automatic clamping system, by hydraulic automatic gripping device 1,
No.1 individual event proportioning valve 3, No.1 solenoid valve 4, No.1 pressure reducing valve 5 and No. four solenoid valves 13 are constituted；Two tunnels are simulation working condition measurement
System, by 11, No. three 9, No. two solenoid valves 10 of the individual event proportioning valve of individual event proportioning valve 8, three of load cylinder 7, two, accumulator electromagnetism
Valve 12 and No. two pressure reducing valves 14 are constituted.All the way with two tunnels by 6 fuel feeding of hydraulic power unit.
When testing tested device 2, worked all the way by central control system PLC instruction first, No. four solenoid valves 13 are beaten
It opens, to fuel feeding all the way.Because the oil pressure that pumping plant pumps out is larger, so need to be depressurized by No.1 pressure reducing valve 5, it is larger to reduce
Destruction of the pressure to tested device outer surface.No.1 solenoid valve 4 realize to the clamping of hydraulic automatic gripping device 1 with loosen, one
Number individual event proportioning valve 3 adjusts the clamp speeds of hydraulic automatic gripping device 1, keeps the clamp speeds of hydraulic automatic gripping device 1 slow
Slow-motion row damages tested device to prevent from clamping device folder partially or generate tested device to increase impact force.It is hydraulic simultaneously automatic
Clamping device 1 has automatic height adjustment device, to adapt to the tested device of different model specification；In No.1 individual event proportioning valve 3
Between No.1 solenoid valve 4, pressure switch is housed, when preventing the disconnected pressure of oil circuit or power-off, clamping device is loosened.
It is illustrated in combination with fig. 2 the present embodiment, after tested device clamping, pressure maintaining all the way is instructed by central control system PLC,
The work of two tunnels, No. four solenoid valves 13 are closed, and No. three solenoid valves 12 are opened, and hydraulic power unit 6 starts to two road fuel feeding.It is normal in simulation
It when operating condition, is depressurized by No. two pressure reducing valves 14, is steadily added through No. two individual event proportioning valves 8 and No. three individual event proportioning valves 9 to load cylinder 7
Pressure loads the walking of 7 low speed of cylinder at this time, drives the movement of 2 lever of tested device, lever is pushed to nominative testing position；Mounted in quilt
The displacement sensor feedback signal outside device 2 is surveyed to central processing unit, PLC instruction simulation burst working condition tests start；No. two
14 pressure regulation of pressure reducing valve, hydraulic power unit 6 load, and 11 accumulation of energy of accumulator after reaching specified pressure, passes through No. two solenoid valve 10, two
Individual event proportioning valve 8 and No. three individual event proportioning valves 9, which are realized, impacts the left and right of tested device 2.No. two individual event proportioning valves 8 and No. three lists
Item proportioning valve 9 can realize the impact under friction speed；Pressure sensor is housed in 2 tail portion of tested device, pressure sensor passes through
Pressure value is transmitted to PLC by signal transmitting device；PLC is acquired pressure value, shift value in real time, and in host computer real-time display,
Draw the curve graphs such as load, displacement, speed.
The present embodiment utilizes the signal communication function of PLC, is acquired in real time to input signal, instruction testing platform is various to be watched
Valve co-operating is taken, so that the simulation to the various operating conditions being likely to occur is realized, to verify the reliability of safety equipment function.This
Embodiment, which is also equipped with, controls the characteristics of two-way carries out different movements with a hydraulic power unit 6.
The model NYZT-DZD-01 of hydraulic automatic gripping device 1, the model NXQ-L40/31.5-Y of accumulator 11,
For matured product, accumulator 11 is a kind of energy savings device in hydropneumatic system, it can will be incompressible in hydraulic system
Hydraulic energy be changed into compression energy and store, when system needs, compression energy is changed into hydraulic energy and is released, is mended again
To oil piping system.
Principle is: Accumulator is by rubbery human body (interior inflated with nitrogen), oil liquid part and shell with airtight separator
It constitutes.Oil liquid positioned at capsule surroundings is identical as hydraulic oil circuit.When hydraulic circuit pressure rise is to greater than capsule the blowing pressure
When, oil liquid enters accumulator, and gas is compressed as a result, and the gas pressure being compressed in leather bag stops pressure when being equal to oil liquid pressure
Contracting；When oil circuit pressure decline, expansion of compressed gas, and then oil liquid is pressed into oil circuit.
Tested device 2 is hydraulic damper, its working principle is that: hydraulic damper is Installation in Plant on heat distribution pipeline
Safety equipment.When pipeline is impacted by internal or external power, pipeline will have substantially instantaneous displacement, be mounted on pipeline at this time
Hydraulic damper work.Hydraulic damper keeps its piston rod (lever) motionless by internal control valve blocking, damper at rigid body,
And impact energy suffered by pipeline is quickly transferred on the component that other are connected with damper (usually girder steel).When pipeline is slow
When slow thermal expansion, hydraulic damper does not work, and shows as following pipe motion.
Claims (9)
1. a kind of safety equipment hydraulic damper measure and control device, which is characterized in that it includes Hydraumatic automatic clamping system and simulation
Working condition measurement system, the Hydraumatic automatic clamping system and simulation working condition measurement system are connect with central control system, described
Hydraumatic automatic clamping system and the input terminal for simulating working condition measurement system are connect with the output end of hydraulic power unit (6), for connecing
Receive hydraulic power unit (6) fuel feeding, the Hydraumatic automatic clamping system and simulation working condition measurement system output end with tested dress
Set (2) connection.
2. a kind of safety equipment hydraulic damper measure and control device according to claim 1, which is characterized in that it is described it is hydraulic from
Dynamic clamping system includes hydraulic automatic gripping device (1), No.1 individual event proportioning valve (3), No.1 solenoid valve (4), No.1 pressure reducing valve
(5) and No. four solenoid valves (13), the first end of No. four solenoid valves (13) is connect with the output end of hydraulic power unit (6), described
The second end of No. four solenoid valves (13) is connect with the first end of No.1 solenoid valve (4), No.1 pressure reducing valve (5) the access No.1 electricity
On the pipeline connected between magnet valve (4) and No. four solenoid valves (13), the second end of the No.1 solenoid valve (4) and hydraulic automatic folder
One end end connection of tight device (1), the third end of the No.1 solenoid valve (4) and the input terminal of No.1 individual event proportioning valve (3) connect
It connects, the output end of the No.1 individual event proportioning valve (3) is connect with the other end of hydraulic automatic gripping device (1), the tested dress
Set actuating station and tested device (2) that (2) are set to hydraulic automatic gripping device (1) centre and hydraulic automatic gripping device (1)
Input terminal connection, the output end of the control terminal of the hydraulic automatic gripping device (1) and central control system connects.
3. a kind of safety equipment hydraulic damper measure and control device according to claim 2, which is characterized in that the simulation work
Condition test macro includes load cylinder (7), No. two individual event proportioning valves (8), No. three individual event proportioning valves (9), No. two solenoid valves (10), stores
Energy device (11), No. three solenoid valves (12) and No. two pressure reducing valves (14), the first end and hydraulic power unit of No. three solenoid valves (12)
(6) output end connection, the second end of No. three solenoid valves (12) are connect with the first end of No. two solenoid valves (10), and described two
Number pressure reducing valve (14) accesses on the pipeline connected between No. two solenoid valves (10) and No. three solenoid valves (12), the accumulator (11)
Input terminal connect with the first end of No. two solenoid valves (10), the second end of No. two solenoid valves (10) and third end respectively with
No. two individual event proportioning valves (8) connect with one end of No. three individual event proportioning valves (9), No. two individual event proportioning valves (8) and No. three lists
The other end of item proportioning valve (9) is connect with the both ends of load cylinder (7) respectively, the output end and tested device of load cylinder (7)
(2) input terminal connection.
4. a kind of safety equipment hydraulic damper measure and control device according to claim 2 or 3, which is characterized in that the liquid
Press the model NYZT-DZD-01 of automatic clamping device (1)；The model NXQ-L40/31.5-Y of the accumulator (11).
5. a kind of safety equipment hydraulic damper measure and control device according to claim 3, which is characterized in that the No.1 list
Pressure switch is equipped between item proportioning valve (3) and No.1 solenoid valve (4)；Displacement sensing is equipped with outside the tested device (2)
Device and pressure sensor, institute's displacement sensors are connect with central control system, and the pressure sensor passes through signal transmitting device
It is connect with central control system, the central control system is connect with host computer.
6. a kind of application method based on the safety equipment hydraulic damper measure and control device described in claim 5, which is characterized in that
It the following steps are included:
Step 1: central control system control Hydraumatic automatic clamping system work, No. four solenoid valves (13) are opened, hydraulic power unit
(6) to Hydraumatic automatic clamping system fuel feeding；
Step 2: central control system controls the pressure maintaining of Hydraumatic automatic clamping system, control simulation working condition measurement system works, No. four
Solenoid valve (13) is closed, and No. three solenoid valves (12) are opened, and hydraulic power unit (6) is to simulation working condition measurement system fuel feeding；
Step 3: central control system acquires pressure value and shift value in real time, curve graph is drawn, and in host computer real-time display.
7. a kind of application method of safety equipment hydraulic damper measure and control device according to claim 6, which is characterized in that
In step 1, the central control system PLC controls No. four solenoid valves (13) and opens, and oil liquid successively passes through No. four solenoid valves
(13), No.1 solenoid valve (4), the oil circuit of No.1 individual event proportioning valve (3) and hydraulic automatic gripping device (1) and tested device (2)
Connection；No.1 pressure reducing valve (5) depressurizes No. four solenoid valves (13), and the No.1 solenoid valve (4) controls Hydraumatic automatic clamping
The clamping of device (1) with loosen, the No.1 individual event proportioning valve (3) adjusts the clamp speeds of hydraulic automatic gripping device (1)；From
And realize hydraulic power unit (6) to Hydraumatic automatic clamping system fuel feeding.
8. a kind of application method of safety equipment hydraulic damper measure and control device according to claim 6, which is characterized in that
In step 2, the central control system PLC controls No. four solenoid valves (13) and closes, Hydraumatic automatic clamping system pressure maintaining, institute
It states central control system PLC and controls No. three solenoid valves (12) openings, oil liquid successively passes through No. three solenoid valves (12), No. two solenoid valves
(10), the oil circuit of No. two individual event proportioning valves (8), No. three individual event proportioning valves (9) and load cylinder (7) is connect with tested device (2)；Two
Number pressure reducing valve (14) depressurizes No. three solenoid valves (12), passes through No. two solenoid valves (10), No. two individual event proportioning valves (8) and three
Number individual event proportioning valve (9), which is realized, impacts the left and right of tested device (2), through No. two individual event proportioning valves (8) and No. three individual event ratios
Valve (9) steadily pressurizes to load cylinder (7), and load cylinder (7) low speed walking drives the lever movement of tested device (2), lever is pushed away
It is sent to nominative testing position, displacement sensor feeds back the displacement signal of tested device (2) to central processing unit, hydraulic power unit (6)
Load, accumulator (11) accumulation of energy, pressure sensor feed back the pressure signal of tested device (2), and pressure signal reaches predetermined pressure
Afterwards, No. two individual event proportioning valves (8) and No. three individual event proportioning valves (9) realize the impact of friction speed to load cylinder (7), to realize
Hydraulic power unit (6) is to simulation working condition measurement system fuel feeding.
9. a kind of application method of safety equipment hydraulic damper measure and control device according to claim 6, which is characterized in that
In step 3, the curve graph includes curve of load figure, displacement curve figure and speed curve diagram.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111579157A (en) * | 2020-05-18 | 2020-08-25 | 长江三峡通航管理局 | Bridge crane grabbing beam underwater sealing pin penetrating and retreating device with emergency function and method |
| CN114088368A (en) * | 2021-11-03 | 2022-02-25 | 哈尔滨哈飞航空工业有限责任公司 | Performance test device and method for aerospace damper |
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| CN111579157B (en) * | 2020-05-18 | 2022-09-20 | 长江三峡通航管理局 | Bridge crane grabbing beam underwater sealing pin penetrating and retreating device with emergency function and method |
| CN114088368A (en) * | 2021-11-03 | 2022-02-25 | 哈尔滨哈飞航空工业有限责任公司 | Performance test device and method for aerospace damper |
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Application publication date: 20190125 |