CN106644303B - A kind of double medium detection devices of hydraulic buffer leakproofness and its detection method - Google Patents
A kind of double medium detection devices of hydraulic buffer leakproofness and its detection method Download PDFInfo
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- CN106644303B CN106644303B CN201510724529.2A CN201510724529A CN106644303B CN 106644303 B CN106644303 B CN 106644303B CN 201510724529 A CN201510724529 A CN 201510724529A CN 106644303 B CN106644303 B CN 106644303B
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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
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
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Abstract
The invention discloses a kind of double medium detection devices of hydraulic buffer leakproofness and its detection methods, the double medium detection devices of hydraulic buffer leakproofness therein include apparatus main body, the double medium detection devices of the hydraulic buffer leakproofness further include the operational module being arranged in inside apparatus main body, and the operational module includes signal detecting unit, air pressure detecting unit, vacuum unit and reversal valve；Detection job platform is additionally provided on the top of described device main body, hydraulic buffer fixed placement is on detection job platform, operational module is connected by the inner cavity of reversal valve and hydraulic buffer, can be controlled signal detecting unit, vacuum unit or air pressure detecting unit respectively using commutation valve events and be worked hydraulic buffer so as to being detected by liquids and gases pair media to the leakproofness of hydraulic buffer.This invention ensures that the accuracy of testing result and its detecting step is simple and convenient, shortens detection time, improves detection efficiency.
Description
Technical field
The present invention relates to a kind of hydraulic buffer device for detecting sealability and its detection method, more particularly to a kind of hydraulic subtract
The double medium detection devices of device leakproofness of shaking and its detection method.
Background technique
With the fast development of new energy field, wind power industry developing steps are accelerated, and the power of the assembling unit is increasing, right
Higher requirements are also raised for machine set system overall performance.For the even running for guaranteeing wind power generating set transmission system, tradition
Pure rubber damper be unable to satisfy the requirement of the big damping of low frequency, therefore developed hydraulic buffer.By the liquid of special designing
Pressure damper has multilayer rubber elastic construction, can not only guarantee the intensity of restraint forces, moreover it is possible to quiet and shock-free
To damping effect.
Hydraulic buffer internal structure design is the filling liquid inner cavity of sealing, to meet generating set to the rigid of hydraulic buffer
Degree and damping requirements need to carry out its inner cavity the pouring liquid of elevated pressures, and perfusion generally passes through liquid by the way of at present
Body device for casting is irrigated, it is therefore desirable to be detected to being sealed property of hydraulic buffer.But existing sealing propertytest is only
It is that subsidiary detection is carried out to leakproofness during liquid filling device is irrigated hydraulic buffer, if detecting in this way,
The detection process time is long, heavy workload, also make perfusion there are certain uncertainties, i.e., if the leakproofness of hydraulic buffer not
If qualification, then the quality of entire hydraulic buffer also can be unqualified, causes the filling process of front just white useless, increases filling
Form this.In addition, in the prior art, being detected just with a kind of liquid medium to leakproofness, in this way it cannot be guaranteed that inspection
The accuracy of result is surveyed, brings hidden danger for the outgoing of subsequent hydraulic buffer.
Application publication number is CN104632980A, and data of publication of application is that the Chinese invention patent on May 20th, 2015 discloses
A kind of full-automatic silicon oil damper silicone oil charging machine with sealing leak detection function, including oiling machine shell and oiling casing
The work top of body side；Fuel tank is equipped in oiling machine shell, fuel tank is installed in braced frame, and oil transportation is arranged at the bottom of fuel tank
Pipe, petroleum pipeline are connected with oiling oil cylinder, and oiling oil cylinder is connected by petroleum pipeline with damper, and the intracorporal bottom of oiling machine shell is also set
There are the vacuum pump and vacuum leak detection instrument for vacuumizing, vacuum pump vacuumizes damper.
What the device in above patent document detected the leakproofness of damper simply by a kind of liquid medium,
Therefore, it cannot guarantee that the accuracy of testing result.
To sum up, a kind of hydraulic buffer device for detecting sealability and its detection method how are designed, can be subtracted hydraulic
Before vibration device is formally perfused, is detected by leakproofness of double media to hydraulic buffer, guarantee the accuracy of testing result, mention
High yield quality reduces perfusion cost and keeps its detecting step simple and convenient, shortens detection time, and improving detection efficiency is to be badly in need of
The technical issues of solution.
Summary of the invention
The technical problem to be solved by the present invention is in view of the deficiencies in the prior art, provide a kind of hydraulic buffer
The double medium detection devices of leakproofness and its detection method, can be before hydraulic buffer be formally perfused, by double media to hydraulic
The leakproofness of damper is detected, and be ensure that the accuracy of testing result, is improved product quality, reduce perfusion cost and
Its detecting step is simple and convenient, shortens detection time, improves detection efficiency.
In order to solve the above technical problems, the technical solution used in the present invention are as follows: a kind of hydraulic buffer leakproofness is double to be situated between
Quality detecting device, including apparatus main body, the double medium detection devices of the hydraulic buffer leakproofness further include being arranged in device master
The operational module in internal portion, the operational module includes signal detecting unit, air pressure detecting unit, vacuum unit and commutation
Valve；Detection job platform is additionally provided on the top of described device main body, hydraulic buffer fixed placement is in detection operation horizontal
On platform, operational module is connected by the inner cavity of reversal valve and hydraulic buffer, can control hydraulic inspection respectively using commutation valve events
Unit, vacuum unit or air pressure detecting unit is surveyed to work so as to by the double media of liquids and gases to hydraulic buffer
The leakproofness of hydraulic buffer is detected.
Preferably, the signal detecting unit includes liquid reserve tank and the hydraulic pump that connect with liquid reserve tank pipeline, described hydraulic
Pump is connect by pipeline with reversal valve；Liquid-pressure pick-up is additionally provided on the pipeline of connection hydraulic pump and reversal valve.
Preferably, the air pressure detecting unit includes gas energy storage device and the pulsometer that connect with gas energy storage device pipeline,
The pulsometer is connect by pipeline with reversal valve；Baroceptor is additionally provided on the pipeline of connection pulsometer and reversal valve
One.
Preferably, the detection job platform is slidably connected on the top of apparatus main body, at the top of the apparatus main body in
Between be additionally provided with safty shield on position, detection job platform can be passed through at the top of apparatus main body safty shield, return and slide
It is dynamic.
It preferably, is respectively to detect job platform one and detection operation horizontal there are two the detection job platform settings
Platform two, detection job platform one and detection job platform two are divided to for positioned at two side positions of safty shield；The reversal valve is adopted
With four position-5 way valves or 3 position-5 way valve, signal detecting unit, air pressure detecting unit and vacuum unit respectively with
Three oil inlet and outlets in reversal valve connect, and a commutation hydraulic fluid port in reversal valve passes through connecting tube one and detection job platform one
On hydraulic buffer inner cavity connection, another commutation hydraulic fluid port in reversal valve passes through connecting tube two and detection job platform
The inner cavity of hydraulic buffer on two connects；It is also respectively provided in the connecting tube one and connecting tube two for controlling connection
The valve one and valve two that the opening and closing of pipe one and connecting tube two are opened and closed.
Preferably, the double medium detection devices of the hydraulic buffer leakproofness further include control centre, the control centre
Including control panel, alarm feedback device and PLC controller；The operational module, control panel and alarm feedback device with
PLC controller electrical control connection.
Invention additionally discloses a kind of detection sides of the double medium detection devices of basis hydraulic buffer leakproofness as described above
Method, it using liquid is medium to liquid that the detection method, which is using reversal valve action control signal detecting unit and vacuum unit gas,
What the leakproofness of pressure damper was detected
Or it using gas is medium to liquid-springing that the detection method, which is using reversal valve action control air pressure detecting unit,
What the leakproofness of device was detected
Or the detection method is using reversal valve action control signal detecting unit and vacuum unit with liquid medium
And sealing of the form combined using reversal valve action control air pressure detecting unit using gas as medium to hydraulic buffer
What property was detected.
Preferably, the signal detecting unit includes liquid reserve tank and the hydraulic pump that connect with liquid reserve tank pipeline, described hydraulic
Pump is connect by pipeline with reversal valve；Liquid-pressure pick-up is additionally provided on the pipeline of connection hydraulic pump and reversal valve；
The air pressure detecting unit includes gas energy storage device and the pulsometer that connect with gas energy storage device pipeline, the air pressure
Pump is connect by pipeline with reversal valve；Baroceptor one is additionally provided on the pipeline of connection pulsometer and reversal valve；
The vacuum unit includes vacuum pump, and the vacuum pump is connect by pipeline with reversal valve；In connection reversal valve
With baroceptor two is additionally provided on the pipeline of vacuum pump；
It is medium to hydraulic buffer that the utilization reversal valve, which controls signal detecting unit and vacuum unit gas using liquid,
The specific steps that are detected of leakproofness are as follows:
1), using between reversal valve action control vacuum unit and the inner cavity of hydraulic buffer be in connected state, liquid
It is in an off state between pressure detection unit and air pressure detecting unit and the inner cavity of hydraulic buffer；
2), control vacuum pump is opened, and is vacuumized using inner cavity of the vacuum pump to hydraulic buffer, is worked as baroceptor
After two detect that the negative pressure of hydraulic buffer inner cavity reaches defined negative pressure value, control vacuum pump is closed；
3), using between the inner cavity of reversal valve action control vacuum unit and air pressure detecting unit and hydraulic buffer
Connected state is between off-state, signal detecting unit and the inner cavity of hydraulic buffer；
4), control hydraulic pump is opened, and the liquid medium in liquid reserve tank is injected into hydraulic buffer using hydraulic pump
In chamber, after the pressure of hydraulic buffer inner cavity reaches defined detection hydraulic pressure value, detected using liquid-pressure pick-up
Can the pressure of hydraulic buffer inner cavity detect hydraulic pressure as defined in being maintained at；If be able to maintain, hydraulic buffer is judged
Leakproofness be qualification, on the contrary it is then be it is unqualified；
It is detected using gas as leakproofness of the medium to hydraulic buffer using reversal valve control pressure detection unit
Specific steps are as follows:
A, using between reversal valve action control air pressure detecting unit and the inner cavity of hydraulic buffer be in connected state, liquid
It is in an off state between pressure detection unit and vacuum unit and the inner cavity of hydraulic buffer；
B, control pressure pump is opened, and the gas medium in gas energy storage device is injected into hydraulic buffer using pulsometer
In inner cavity, after the pressure of hydraulic buffer inner cavity reaches defined detection gas pressure value, baroceptor one is utilized to detect
Can the pressure of hydraulic buffer inner cavity be maintained at defined detection gas pressure value；If be able to maintain, liquid-springing is judged
The leakproofness of device be qualification, on the contrary it is then be it is unqualified；
It is described with liquid medium and to utilize commutation using reversal valve action control signal detecting unit and vacuum unit
When valve events control pressure detection unit detects the leakproofness of hydraulic buffer as the form that medium combines using gas,
It is the leakproofness first with reversal valve action control signal detecting unit and vacuum unit with liquid medium to hydraulic buffer
After being detected, recycle reversal valve action control air pressure detecting unit using gas as medium to the leakproofness of hydraulic buffer into
Row detection
It or first with reversal valve action control air pressure detecting unit using gas is medium to the leakproofness of hydraulic buffer
After being detected, recycle reversal valve action control signal detecting unit and vacuum unit with liquid medium to hydraulic buffer
Leakproofness detected.
Preferably, the detection job platform is slidably connected on the top of apparatus main body, at the top of the apparatus main body in
Between be additionally provided with safty shield on position, detection job platform can be passed through at the top of apparatus main body safty shield, return and slide
It is dynamic；
When hydraulic buffer is detected, it is to be fixed on hydraulic buffer on detection job platform, detection is pushed to make
After industry platform drive hydraulic buffer is together along apparatus main body top slide into safty shield, then detected.
It preferably, is respectively to detect job platform one and detection operation horizontal there are two the detection job platform settings
Platform two, detection job platform one and detection job platform two are divided to for positioned at two side positions of safty shield；The reversal valve is adopted
With four position-5 way valves or 3 position-5 way valve, signal detecting unit, air pressure detecting unit and vacuum unit respectively with
Three oil inlet and outlets in reversal valve connect, and a commutation hydraulic fluid port in reversal valve passes through connecting tube one and detection job platform one
On hydraulic buffer inner cavity connection, another commutation hydraulic fluid port in reversal valve passes through connecting tube two and detection job platform
The inner cavity of hydraulic buffer on two connects；It is also respectively provided in the connecting tube one and connecting tube two for controlling connection
The valve one and valve two that the opening and closing of pipe one and connecting tube two are opened and closed；
It is medium to hydraulic buffer that the utilization reversal valve, which controls signal detecting unit and vacuum unit gas using liquid,
Sealing of leakproofness when being detected or using reversal valve control pressure detection unit using gas as medium to hydraulic buffer
Property when being detected, be that first a hydraulic buffer is fixed on detection job platform one, by connecting tube one by reversal valve
In one commutation hydraulic fluid port and one hydraulic buffer inner cavity connect, then push detect job platform one, make
It drives the hydraulic buffer on detection job platform one to be moved on the middle position at the top of apparatus main body and is located at safe anti-
In shield, then opens valve one and subtracted using liquid as medium to hydraulic using reversal valve control signal detecting unit and vacuum unit
The leakproofness of vibration device carries out detection or is medium to the close of hydraulic buffer using gas using reversal valve control pressure detection unit
Envelope property is detected, and valve two at this time is in close state；While detection, another hydraulic buffer is fixed on
It detects on job platform two, then passes through connecting tube two for another commutation hydraulic fluid port and another described liquid in reversal valve
The inner cavity of pressure damper connects, into waiting detecting state；When the hydraulic buffer on detection job platform one completes inspection
After survey, valve one is closed, pushes detection job platform one along backtracking, while pushing detection job platform two, makes its drive
Hydraulic buffer on detection job platform two is moved on the middle position at the top of apparatus main body and is located in safty shield,
Opening valve two reversal valve is recycled to control signal detecting unit and vacuum unit gas using liquid is medium to hydraulic buffer
Leakproofness carry out detecting or utilizing leakproofness of the reversal valve control pressure detection unit using gas as medium to hydraulic buffer
It is detected；When the hydraulic buffer on detection job platform two is detected, to the detection job platform one of detection completion
On hydraulic buffer carry out dismantle and more finish changing next hydraulic buffer to be detected, will be in reversal valve by connecting tube one
One commutation hydraulic fluid port and next hydraulic buffer to be detected inner cavity connect, into waiting detecting state；
After detecting the hydraulic buffer completion detection on job platform two, closes valve two and detection job platform two is pushed to return along former road
It returns, while detection job platform one being pushed to slide into safty shield again, open valve one and continue to detect, so benefit
It is detected with detection job platform one and detection two alternate cycles of job platform, until completing the detection work of all hydraulic damper
Make.
The beneficial effects of the present invention are: the present invention can be before hydraulic buffer be formally perfused, by double media to hydraulic
The leakproofness of damper is detected, and be ensure that the accuracy of testing result, is improved product quality, reduce perfusion cost and
Its detecting step is simple and convenient, shortens detection time, improves detection efficiency.The present invention detection it is convenient, high-efficient, wait when
Between short, double media can flexibly be selected according to the actual situation, make full use of the double advantages of medium respectively, such as gas selected to be situated between
When matter is detected, since hydraulic buffer inner cavity is gas, does not need to carry out vacuum pumping, directly be discharged after the completion of detection
Air pressure, operating process is simple, and efficiency is higher；When selection liquid medium is detected, what which used with filling process
Liquid is consistent, and with more the authenticity of detection, detection effect is more preferable.By adding safty shield, avoid hydraulic when detection
The inner cavity of damper is split, and the detection medium inside inner cavity, which jumps out, occurs the accident that testing staff damages, and improves this
The security performance of invention.By the way that double-station is arranged, so that the present invention carries out cycle detection using two stations, can greatly mention
The detection efficiency of high hydraulic buffer reduces or even eliminates the dress waiting time, reduces the production cost of hydraulic buffer.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the embodiment of the present invention 1；
Fig. 2 is the left view structural representation of Fig. 1；
Fig. 3 is the structural schematic diagram of signal detecting unit in the embodiment of the present invention 1；
Fig. 4 is the structural schematic diagram of air pressure detecting unit in the embodiment of the present invention 1；
Fig. 5 is the structural schematic diagram of vacuum unit in the embodiment of the present invention 1；
Fig. 6 is the structural schematic diagram of the embodiment of the present invention 2；
In figure: 1. apparatus main bodies, 2. signal detecting units, 211. liquid reserve tanks, 212. hydraulic pumps, 3. air pressures detection
Unit, 311. gas energy storage devices, 312. pulsometers, 4. vacuum units, 411. vacuum pumps, 5. reversal valves, 6. detections
Job platform, 611. detection job platforms one, 612. detection job platforms two, 7. hydraulic buffers, 8. fluid pressures pass
Sensor, 9. baroceptors one, 10. baroceptors two, 11. safty shields, 12. sliding blocks, 13. guide rails, 14. ten thousand
Way roller, 15. connecting tubes one, 16. control centres, 161. control panels, 162. alarm feedback devices, 17. connecting tubes
Two.
Specific embodiment
Further details of elaboration is done to technical solution of the present invention in the following with reference to the drawings and specific embodiments.
Embodiment 1: as depicted in figs. 1 and 2, a kind of double medium detection devices of hydraulic buffer leakproofness, including device master
Body 1, the double medium detection devices of the hydraulic buffer leakproofness further include the operational module being arranged in inside apparatus main body 1, institute
Stating operational module includes signal detecting unit 2, air pressure detecting unit 3, vacuum unit 4 and reversal valve 5；In described device main body
Detection job platform 6 is additionally provided on 1 top, 7 fixed placement of hydraulic buffer is on detection job platform 6, operational module
It is connect by reversal valve 5 with the inner cavity of hydraulic buffer 7, signal detecting unit 2 can be controlled respectively using the movement of reversal valve 5, taken out
Vacuum unit 4 or air pressure detecting unit 3 work to hydraulic buffer 7 to pass through the double media of liquids and gases to hydraulic
The leakproofness of damper 7 is detected.Detection device in the present embodiment can pass through double Jie before hydraulic buffer is formally perfused
Matter (i.e. liquid medium and gas medium) detects the leakproofness of hydraulic buffer, ensure that the accuracy of testing result,
Product quality is improved, perfusion cost is reduced；The present embodiment detection it is convenient, high-efficient, the waiting time is short, double media can basis
Actual conditions are flexibly selected, and the double advantages of medium respectively are made full use of, when such as gas medium being selected to be detected, due to
Hydraulic buffer inner cavity is gas, does not need to carry out vacuum pumping, and air pressure, operating process letter are directly discharged after the completion of detection
Single, efficiency is higher；When selection liquid medium is detected, the liquid medium is consistent with the liquid that filling process uses, and has more
The authenticity of detection, detection effect are more preferable.
As shown in figures 1 and 3, the signal detecting unit 2 includes liquid reserve tank 211 and connect with 211 pipeline of liquid reserve tank
Hydraulic pump 212, the hydraulic pump 212 are connect by pipeline with reversal valve 5；On the pipeline of connection hydraulic pump 212 and reversal valve 5
It is additionally provided with liquid-pressure pick-up 8.When hydraulic medium detects, liquid medium is taken out from liquid reserve tank 211 by hydraulic pump 212
It is irrigated into the inner cavity of hydraulic buffer 7, while detecting fluid pressure using liquid-pressure pick-up 8.In the present embodiment
In, hydraulic pump 212 is pumped using bidirectional hydraulic, in this way after the completion of detection, can directly be pumped by bidirectional hydraulic by liquid-springing
Liquid medium in device inner cavity is released, and efficiency is improved.
As shown in Figure 1 and Figure 4, the air pressure detecting unit 3 includes gas energy storage device 311 and manages with gas energy storage device 311
The pulsometer 312 of road connection, the pulsometer 312 are connect by pipeline with reversal valve 5；In connection pulsometer 312 and reversal valve 5
Pipeline on be additionally provided with baroceptor 1.When air pressure medium detects, gas medium is perfused by feed liquor by pulsometer 312
In the inner cavity of pressure damper 7, while utilizing one 9 detection gas pressure of baroceptor.
As shown in Figure 1 and Figure 5, the vacuum unit 4 includes vacuum pump 411, and the vacuum pump 411 passes through pipeline and changes
It is connected to valve 5；Baroceptor 2 10 is additionally provided on the pipeline of connection vacuum pump 411 and reversal valve 5.Vacuum pump 411 is used
In before air pressure detects, the inner cavity of hydraulic buffer 7 is vacuumized.
As depicted in figs. 1 and 2, the detection job platform 6 is slidably connected on the top of apparatus main body 1, in device master
Safty shield 11 is additionally provided on the middle position at 1 top of body, detection job platform 6 can pass through peace at the top of apparatus main body 1
Full protection cover 11, return sliding.The bottom of detection job platform 6 is provided with sliding block 12, is arranged on the top of apparatus main body 1
There is guide rail 13, is matched by sliding block 12 and guide rail 13 so that detecting the top that job platform 6 is slidably connected at apparatus main body 1
On, guide rail 13 runs through safty shield 11 so that detection 6 energy band hydrodynamic pressure damper 7 of job platform is worn along guide rail 13 together
Cross safty shield 11, return sliding.When being detected, a kind of high pressure conditions are in the inner cavity of hydraulic buffer, due to
The inner cavity of hydraulic buffer is made of rubber bodies, and the inner cavity of hydraulic buffer is possible to will crack, so that being filled into liquid
Detection medium in pressure damper inner cavity, which jumps out, damages testing staff, for this purpose, the present embodiment is additionally arranged safty shield,
In the present embodiment, hydraulic buffer is to be fed in safty shield to be detected by detection job platform, this
The inner cavity of hydraulic buffer is split when sample avoids detection, and the detection medium of the inside jumps out the thing damaged to testing staff
Therefore occur, improve the security performance of the present embodiment.Safty shield is inverted U, can be used based on organic glass with gold
Belong to the structure that mesh enclosure combines to be made, can be further ensured that the safety of testing staff in this way.It is also set on the bottom of apparatus main body 1
It is equipped with universal rolling wheel 14, so that the present embodiment can be moved conveniently.
In the present embodiment, the detection job platform 6 is provided with one, and the reversal valve 5 can be used four five and logical change
To valve, signal detecting unit 2, air pressure detecting unit 3 and vacuum unit 4 connect with three oil inlet and outlets in reversal valve 5 respectively
It connects, the inner cavity that in reversal valve 5 a commutation hydraulic fluid port passes through the hydraulic buffer 7 in connecting tube 1 and detection job platform 6
It connects, another commutation hydraulic fluid port in reversal valve 5 is in the state that blocks, i.e. the P hydraulic fluid port of reversal valve 5 and vacuum unit 4 connects
Connect, T1 hydraulic fluid port is connect with signal detecting unit 2, and T2 hydraulic fluid port is connect with air pressure detecting unit 3, A hydraulic fluid port by connecting tube 1 with
The inner cavity connection of the hydraulic buffer 7 on job platform 6 is detected, B hydraulic fluid port is in and blocks state.There are four movements altogether for reversal valve 5
Position, the inner cavity for being respectively as follows: control vacuum unit 4 and hydraulic buffer 7 are in the operating position of connected state (at this point, liquid
Pressure detection unit 2 and air pressure detecting unit 3 and the inner cavity of hydraulic buffer 7 between be in off-state), control signal detecting
The inner cavity of unit 2 and hydraulic buffer 7 is in the operating position of connected state (at this point, vacuum unit 4 and air pressure detecting unit
Be in off-state between 3 and the inner cavity of hydraulic buffer 7), the inner cavity of control pressure detection unit 2 and hydraulic buffer 7
Operating position in connected state is (at this point, between vacuum unit 4 and signal detecting unit 2 and the inner cavity of hydraulic buffer 7
It is in off-state) and control vacuum unit 4, signal detecting unit 2 and air pressure detecting unit 3 and hydraulic buffer 7
The operating position of off-state is between inner cavity.Herein, reversal valve 5 can also use 3 position-5 way valve, with
Above-mentioned four position-5 way valve is compared, the difference is that: it is gentle to have lacked control vacuum unit 4, a signal detecting unit 2
The operating position of off-state is between pressure detection unit 3 and the inner cavity of hydraulic buffer 7.Connecting tube 1 is using flexible
Connecting tube is to be connected to by the liquid injection hole on hydraulic buffer 7 with hydraulic buffer inner cavity.
The double medium detection devices of the hydraulic buffer leakproofness further include control centre 16, and the control centre 16 includes
Control panel 161, alarm feedback device 162 and PLC controller (not shown)；The operational module, 161 and of control panel
Alarm feedback device 162 is connect with PLC controller electrical control, and control centre 16 is arranged on safty shield 11.
As shown in Figures 1 to 5, invention additionally discloses a kind of double medium inspections of basis hydraulic buffer leakproofness as described above
The detection method of device is surveyed, the detection method is to utilize 5 action control signal detecting unit 2 of reversal valve and vacuum unit gas
4 are detected as leakproofness of the medium to hydraulic buffer 7 using liquid, herein can also the detection method be using changing
It is detected to 5 action control air pressure detecting unit 3 of valve using gas as leakproofness of the medium to hydraulic buffer 7, herein
Can be with the detection method using 5 action control signal detecting unit 2 of reversal valve and vacuum unit 4 with liquid medium with
And sealing of the form combined using 5 action control air pressure detecting unit 3 of reversal valve using gas as medium to hydraulic buffer 7
What property was detected.The detecting step of the present embodiment is simple and convenient, shortens detection time, improves detection efficiency.
It is medium to hydraulic buffer that the utilization reversal valve, which controls signal detecting unit and vacuum unit gas using liquid,
The specific steps that are detected of leakproofness are as follows:
1), PLC controls reversal valve 5 and acts, using in 5 action control vacuum unit 4 of reversal valve and hydraulic buffer 5
Connected state is between chamber, in disconnected between signal detecting unit 2 and air pressure detecting unit 3 and the inner cavity of hydraulic buffer 5
Open state；
2), PLC controls vacuum pump 411 and opens, and is vacuumized using inner cavity of the vacuum pump 411 to hydraulic buffer 5, when
After baroceptor 2 10 detects that the negative pressure of hydraulic buffer inner cavity reaches defined negative pressure value, PLC controls vacuum pump 411 and closes
It closes；
3), PLC controls reversal valve 5 and acts, using 5 action control vacuum unit 4 of reversal valve and air pressure detecting unit 3 with
It is in an off state between the inner cavity of hydraulic buffer 7, in company between signal detecting unit 2 and the inner cavity of hydraulic buffer 7
Logical state；
4), PLC controls hydraulic pump 212 and opens, and the liquid medium in liquid reserve tank 211 is injected into liquid using hydraulic pump 212
In the inner cavity of pressure damper 7, when liquid-pressure pick-up 8 detects that the pressure of hydraulic buffer inner cavity reaches defined and detects liquid
After pressure pressure value, the pressure of hydraulic buffer inner cavity is detected within a period of time (3 to 5 minutes) using liquid-pressure pick-up 8
Hydraulic pressure is detected as defined in being maintained at；If be able to maintain, judge that the leakproofness of hydraulic buffer for qualification, passes through report
Alert feedback device issues three sound buzzers, on the contrary it is then be it is unqualified, by alarm feedback device sending light flash and long song,
Alarm is eliminated until clicking in control panel.
It is detected using gas as leakproofness of the medium to hydraulic buffer using reversal valve control pressure detection unit
Specific steps are as follows:
A, PLC controls reversal valve 5 and acts, and utilizes 5 action control air pressure detecting unit 3 of reversal valve and hydraulic buffer 7
Connected state is between inner cavity, in disconnected between signal detecting unit 2 and vacuum unit 4 and the inner cavity of hydraulic buffer 7
Open state；
B, PLC control pressure pump 312 is opened, and is injected into the gas medium in gas energy storage device 311 using pulsometer 312
In the inner cavity of hydraulic buffer 7, when baroceptor 1 detects that the pressure of hydraulic buffer inner cavity reaches defined and detects gas
After body pressure value, the pressure of hydraulic buffer inner cavity is detected in a period of time (3 to 5 minutes) interior energy using baroceptor 1
It is no to be maintained at defined detection gas pressure value；If be able to maintain, judge that the leakproofness of hydraulic buffer for qualification, passes through report
Alert feedback device issues three sound buzzers, on the contrary it is then be it is unqualified, by alarm feedback device sending light flash and long song,
Alarm is eliminated until clicking in control panel.
It is described with liquid medium and to utilize commutation using reversal valve action control signal detecting unit and vacuum unit
When valve events control pressure detection unit detects the leakproofness of hydraulic buffer as the form that medium combines using gas,
It is with liquid medium first with 5 action control signal detecting unit 2 of reversal valve and vacuum unit 4 to the close of hydraulic buffer 7
After envelope property is detected, recycling 5 action control air pressure detecting unit 3 of reversal valve is medium to hydraulic buffer 7 using gas
It is that leakproofness is detected or using gas be medium to liquid-springing first with 5 action control air pressure detecting unit 3 of reversal valve
After the leakproofness of device 7 is detected, 5 action control signal detecting unit 2 of reversal valve and vacuum unit 3 is recycled to be situated between with liquid
What the leakproofness of confrontation hydraulic buffer 7 was detected, to hydraulic buffer by way of above-mentioned double medium detections combine
It is detected, can be further ensured that the accuracy of testing result.
When hydraulic buffer is detected, it is to be fixed on hydraulic buffer 7 on detection job platform 6, pushes detection
After the drive hydraulic buffer 7 of job platform 6 is together along 1 top slide of apparatus main body into safty shield 11, then detected
, this ensure that the personal safety of testing staff, improves the safety of the present embodiment.
Embodiment 2: as shown in fig. 6, compared with Example 1, the difference is that: the detection job platform 6 is provided with
Two, be respectively to detect job platform 1 and detection job platform 2 612；Detect job platform 1 and detection operation
2 612 points of platform is positioned at two side positions of safty shield 11.Four position-5 way valves can be used in the reversal valve 5, hydraulic
Detection unit 2, air pressure detecting unit 3 and vacuum unit 4 are connect with three oil inlet and outlets in reversal valve 5 respectively, reversal valve 5
In a commutation hydraulic fluid port connect by connecting tube 1 with the inner cavity of hydraulic buffer 7 on detection job platform 1, change
Another commutation hydraulic fluid port into valve 5 passes through in the hydraulic buffer 7 in connecting tube 2 17 and detection job platform 2 612
Chamber connection, i.e. the P hydraulic fluid port of reversal valve 5 are connect with vacuum unit 4, and T1 hydraulic fluid port is connect with signal detecting unit 2, T2 hydraulic fluid port and gas
Detection unit 3 is pressed to connect, A hydraulic fluid port is connected by the inner cavity of the hydraulic buffer 7 in connecting tube 1 and detection job platform 1
It connects, B hydraulic fluid port is connect by connecting tube 2 17 with the inner cavity for detecting the hydraulic buffer 7 on job platform 2 612, in the connection
Two (not shown) of one (not shown) of valve and valve is also respectively provided on pipe 1 and connecting tube 2 17, for controlling
The opening and closing of connecting tube one and connecting tube two processed, connecting tube 1 and connecting tube 2 17 are all made of flexible steel in flat section tubing.Herein, it commutates
Valve 5 can also use 3 position-5 way valve.
A kind of detection of double medium detection devices of basis hydraulic buffer leakproofness as described above is also disclosed in the present embodiment
Method, compared with the detection method in embodiment 1, the difference is that: it is described to control signal detecting unit using reversal valve
When being detected using liquid as leakproofness of the medium to hydraulic buffer with vacuum unit gas or utilize reversal valve control pressure
It is first that a hydraulic buffer 7 is fixed when detection unit is detected using gas as leakproofness of the medium to hydraulic buffer
On detection job platform 1, a commutation hydraulic fluid port in reversal valve 5 hydraulic is subtracted with one by connecting tube 1
The inner cavity of vibration device 7 connects, and then pushes detection job platform 1 along guide rail, it is made to drive detection job platform 1
On hydraulic buffer 7 be moved on the middle position at the top of apparatus main body 1 and be located in safty shield 11, then open valve
It is medium to liquid-springing that one (not shown), which controls signal detecting unit 2 and vacuum unit 4 using liquid using reversal valve 5,
The leakproofness of device 7 carries out detection or is medium to hydraulic buffer 7 using gas using 5 control pressure detection unit 3 of reversal valve
Leakproofness is detected, and two (not shown) of valve at this time is in close state；While detection, by another liquid
Pressure damper 7 is fixed on detection job platform 2 612, is then changed another in reversal valve 5 by connecting tube 2 17
It is connected to the inner cavity of hydraulic fluid port and another hydraulic buffer 7, into waiting detecting state；When detection job platform
After hydraulic buffer 7 on one 611 completes detection, one (not shown) of valve is closed, pushes detection one 611 edge of job platform
Backtracking to safty shield 11 a side position, while along guide rail push detection job platform 2 612, make its drive detection
Hydraulic buffer 7 on job platform 2 612 is moved on the middle position at 1 top of apparatus main body and is located at safty shield 11
In, it opens two (not shown) of valve and reversal valve 5 is recycled to control signal detecting unit 2 and vacuum unit gas 4 with liquid
Detect or using 5 control pressure detection unit 3 of reversal valve using gas as medium for leakproofness of the medium to hydraulic buffer 7
The leakproofness of hydraulic buffer 7 is detected；It is right when the hydraulic buffer 7 on detection job platform 2 612 is detected
The hydraulic buffer 7 on the detection job platform 1 completed is detected dismantle and more finish changing next to be detected hydraulic
Damper 7, by connecting tube 1 by reversal valve 5 a commutation hydraulic fluid port and next hydraulic buffer to be detected
7 inner cavity connects, into waiting detecting state；When the hydraulic buffer 7 on detection job platform 2 612 completes detection
Afterwards, closing two (not shown) of valve pushes detection job platform 2 612 along other the one of backtracking to safty shield
Side position, while pushing detection job platform 1 to slide into safty shield 11 again along guide rail, open (the figure of valve one
In be not shown) continue to detect, so using detection job platform one and detection two alternate cycles of job platform detect, until
Complete the detection work of all hydraulic damper.Detection device in the present embodiment is duplexing level detecting apparatus, such two works
Position is recycled, and the detection efficiency of hydraulic buffer can be greatly improved, and reduces or even eliminates the dress waiting time, is reduced hydraulic
The production cost of damper.
In conclusion the present invention can sealing before hydraulic buffer is formally perfused, by double media to hydraulic buffer
Property detected, ensure that the accuracy of testing result, improve product quality, reduce perfusion cost and its detecting step letter
It is single convenient, detection time is shortened, detection efficiency is improved.Present invention detection is convenient, high-efficient, the waiting time is short, double media
It can flexibly be selected according to the actual situation, make full use of the double advantages of medium respectively, such as gas medium is selected to be detected
When, since hydraulic buffer inner cavity is gas, does not need to carry out vacuum pumping, air pressure, operation are directly discharged after the completion of detection
Process is simple, and efficiency is higher；When selection liquid medium is detected, the liquid medium is consistent with the liquid that filling process uses,
With more the authenticity of detection, detection effect is more preferable.By adding safty shield, hydraulic buffer is interior when avoiding detection
Chamber splits, and the detection medium inside inner cavity, which jumps out, occurs the accident that testing staff damages, and improves safety of the invention
Performance.By the way that double-station is arranged, so that the present invention carries out cycle detection using two stations, liquid-springing can be greatly improved
The detection efficiency of device reduces or even eliminates the dress waiting time, reduces the production cost of hydraulic buffer.
Above embodiments are used for illustrative purposes only, rather than limitation of the present invention, the technology people in relation to technical field
Member without departing from the spirit and scope of the present invention, can also make a variety of changes or convert, therefore is all equivalent
Technical solution also should belong to protection scope of the present invention, and protection scope of the present invention should be limited by each claim.
Claims (5)
1. a kind of double medium detection devices of hydraulic buffer leakproofness, including apparatus main body, it is characterised in that: the liquid-springing
The double medium detection devices of device leakproofness further include the operational module being arranged in inside apparatus main body, and the operational module includes hydraulic
Detection unit, air pressure detecting unit, vacuum unit and reversal valve；Detection is additionally provided on the top of described device main body to make
Industry platform, for hydraulic buffer fixed placement on detection job platform, operational module is interior by reversal valve and hydraulic buffer
Chamber connection can control signal detecting unit, vacuum unit or air pressure detecting unit using commutation valve events respectively and subtract to hydraulic
Vibration device works to detect the leakproofness of hydraulic buffer by the double media of liquids and gases；
The detection job platform is slidably connected on the top of apparatus main body, is also set on the middle position at the top of apparatus main body
It is equipped with safty shield, detection job platform can be at the top of apparatus main body across safty shield, time sliding；
There are two the detection job platform settings, is respectively to detect job platform one and detection job platform two, detection is made
Industry platform one and detection job platform two are divided to for positioned at two side positions of safty shield；The reversal valve is led to using four five to be changed
To valve or 3 position-5 way valve, signal detecting unit, air pressure detecting unit and vacuum unit respectively with three in reversal valve
A oil inlet and outlet connects, and a commutation hydraulic fluid port in reversal valve is by connecting tube one and detects the liquid-springing on job platform one
The inner cavity of device connects, another commutation hydraulic fluid port in reversal valve is subtracted by connecting tube two with hydraulic on detection job platform two
The inner cavity connection of vibration device；It is also respectively provided in the connecting tube one and connecting tube two for controlling the opening and closing of connecting tube one and connecting
The valve one and valve two that adapter tube two is opened and closed.
2. the double medium detection devices of hydraulic buffer leakproofness according to claim 1, it is characterised in that: described hydraulic to subtract
The double medium detection devices of device leakproofness of shaking further include control centre, and the control centre includes control panel, alarm feedback device
And PLC controller；The operational module, control panel and alarm feedback device are connect with PLC controller electrical control.
3. a kind of detection method of the double medium detection devices of hydraulic buffer leakproofness according to claim 1 or 2, special
Sign is: the detection method is using reversal valve action control signal detecting unit and vacuum unit gas using liquid as medium
The leakproofness of hydraulic buffer is detected
Or the detection method is medium to hydraulic buffer using gas using reversal valve action control air pressure detecting unit
What leakproofness was detected
Or the detection method be using reversal valve action control signal detecting unit and vacuum unit with liquid medium and
The form combined using gas as medium using reversal valve action control air pressure detecting unit to the leakproofness of hydraulic buffer into
Row detection；
The signal detecting unit includes liquid reserve tank and the hydraulic pump that connect with liquid reserve tank pipeline, the hydraulic pump by pipeline with
Reversal valve connection；Liquid-pressure pick-up is additionally provided on the pipeline of connection hydraulic pump and reversal valve；
The air pressure detecting unit includes gas energy storage device and the pulsometer that connect with gas energy storage device pipeline, and the pulsometer is logical
Piping is connect with reversal valve；Baroceptor one is additionally provided on the pipeline of connection pulsometer and reversal valve；
The vacuum unit includes vacuum pump, and the vacuum pump is connect by pipeline with reversal valve；In connection reversal valve and very
Baroceptor two is additionally provided on the pipeline of sky pump；
It is described that control signal detecting unit and vacuum unit gas using liquid using reversal valve be medium to the close of hydraulic buffer
The specific steps that envelope property is detected are as follows:
1), using between reversal valve action control vacuum unit and the inner cavity of hydraulic buffer be in connected state, hydraulic inspection
It surveys between unit and air pressure detecting unit and the inner cavity of hydraulic buffer and is in an off state；
2), control vacuum pump is opened, and is vacuumized using inner cavity of the vacuum pump to hydraulic buffer, when baroceptor two is examined
Measure hydraulic buffer inner cavity negative pressure reach as defined in after negative pressure value, control vacuum pump is closed；
3), using between reversal valve action control vacuum unit and the inner cavity of air pressure detecting unit and hydraulic buffer in disconnected
Open state is in connected state between signal detecting unit and the inner cavity of hydraulic buffer；
4), control hydraulic pump is opened, and the liquid medium in liquid reserve tank is injected into the inner cavity of hydraulic buffer using hydraulic pump,
As defined in reaching when the pressure of hydraulic buffer inner cavity after detection hydraulic pressure value, hydraulic subtract is detected using liquid-pressure pick-up
Can the pressure of vibration device inner cavity detect hydraulic pressure as defined in being maintained at；If be able to maintain, the sealing of hydraulic buffer is judged
Property for qualification, on the contrary it is then be it is unqualified；
It is detected using reversal valve control pressure detection unit using gas as leakproofness of the medium to hydraulic buffer specific
Step are as follows:
A, using between reversal valve action control air pressure detecting unit and the inner cavity of hydraulic buffer be in connected state, hydraulic inspection
It surveys between unit and vacuum unit and the inner cavity of hydraulic buffer and is in an off state；
B, control pressure pump is opened, and the gas medium in gas energy storage device is injected into the inner cavity of hydraulic buffer using pulsometer
In, after the pressure of hydraulic buffer inner cavity reaches defined detection gas pressure value, detected using baroceptor one hydraulic
Can the pressure of damper inner cavity be maintained at defined detection gas pressure value；If be able to maintain, hydraulic buffer is judged
Leakproofness be qualification, on the contrary it is then be it is unqualified；
It is described with liquid medium and to utilize commutation valve actuation using reversal valve action control signal detecting unit and vacuum unit
It is first when making control pressure detection unit and being detected as the form that medium combines to the leakproofness of hydraulic buffer using gas
It is carried out using reversal valve action control signal detecting unit and vacuum unit with leakproofness of the liquid medium to hydraulic buffer
After detection, reversal valve action control air pressure detecting unit is recycled to examine by leakproofness of the medium to hydraulic buffer of gas
It surveys
Or it is carried out first with reversal valve action control air pressure detecting unit by leakproofness of the medium to hydraulic buffer of gas
After detection, recycle reversal valve action control signal detecting unit and vacuum unit with liquid medium to the close of hydraulic buffer
What envelope property was detected.
4. the detection method of the double medium detection devices of hydraulic buffer leakproofness according to claim 3, it is characterised in that:
The detection job platform is slidably connected on the top of apparatus main body, is additionally provided on the middle position at the top of apparatus main body
Safty shield, detection job platform can be at the top of apparatus main bodies across safty shield, time sliding；
When hydraulic buffer is detected, it is to be fixed on hydraulic buffer on detection job platform, pushes detection operation horizontal
After platform drive hydraulic buffer is together along apparatus main body top slide into safty shield, then detected.
5. the detection method of the double medium detection devices of hydraulic buffer leakproofness according to claim 4, it is characterised in that:
There are two the detection job platform settings, is respectively to detect job platform one and detection job platform two, detects operation horizontal
Platform one and detection job platform two are divided to for positioned at two side positions of safty shield；The reversal valve uses four position-5 way valves
Or 3 position-5 way valve, signal detecting unit, air pressure detecting unit and vacuum unit respectively with three in reversal valve into
Oil outlet connects, and a commutation hydraulic fluid port in reversal valve passes through the hydraulic buffer in connecting tube one and detection job platform one
Inner cavity connects, another commutation hydraulic fluid port in reversal valve is by connecting tube two and detects the hydraulic buffer on job platform two
Inner cavity connection；It is also respectively provided in the connecting tube one and connecting tube two for controlling the opening and closing of connecting tube one and connecting tube
The valve one and valve two of two opening and closings；
It is described that control signal detecting unit and vacuum unit gas using liquid using reversal valve be medium to the close of hydraulic buffer
Envelope property when being detected or using reversal valve control pressure detection unit using gas as medium to the leakproofness of hydraulic buffer into
It is that first a hydraulic buffer is fixed on detection job platform one when row detection, it will be in reversal valve by connecting tube one
The inner cavity of one commutation hydraulic fluid port and one hydraulic buffer connects, and then pushes detection job platform one, makes its band
Hydraulic buffer on dynamic detection job platform one is moved on the middle position at the top of apparatus main body and is located at safty shield
In, then opening valve one using reversal valve control signal detecting unit and vacuum unit is medium to hydraulic buffer using liquid
Leakproofness carry out detecting or utilizing leakproofness of the reversal valve control pressure detection unit using gas as medium to hydraulic buffer
It is detected, valve two at this time is in close state；While detection, another hydraulic buffer is fixed on detection
On job platform two, then by connecting tube two by reversal valve another commutation hydraulic fluid port with it is described another hydraulic subtract
The inner cavity of vibration device connects, into waiting detecting state；After detecting the hydraulic buffer completion detection on job platform one,
Valve one is closed, pushes detection job platform one along backtracking, while pushing detection job platform two, makes it that detection be driven to make
Hydraulic buffer on industry platform two is moved on the middle position at the top of apparatus main body and is located in safty shield, opens valve
Door two recycles the sealing of reversal valve control signal detecting unit and vacuum unit gas using liquid as medium to hydraulic buffer
Property carry out detect or examined using reversal valve control pressure detection unit by leakproofness of the medium to hydraulic buffer of gas
It surveys；When the hydraulic buffer on detection job platform two is detected, to the liquid on the detection job platform one of detection completion
Pressure damper dismantle and more finishes changing next hydraulic buffer to be detected, by connecting tube one by one in reversal valve
The inner cavity of commutation hydraulic fluid port and next hydraulic buffer to be detected connects, into waiting detecting state；Work as detection
After hydraulic buffer on job platform two completes detection, closes valve two and push detection job platform two along backtracking, together
Shi Zaici pushes detection job platform one to slide into safty shield, opens valve one and continues to detect, and so utilizes inspection
Job platform one and detection two alternate cycles of job platform detection are surveyed, until completing the detection work of all hydraulic damper.
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| CN111103135A (en) * | 2019-12-05 | 2020-05-05 | 福建福清核电有限公司 | Nuclear reactor hydrodynamic pressure type main pump mechanical seal reusability inspection method |
| CN112362247B (en) * | 2020-09-27 | 2022-07-19 | 万向一二三股份公司 | Lithium ion battery pack electrolyte leakage detection device and method |
| CN113108997A (en) * | 2021-04-12 | 2021-07-13 | 大庆隆锋机械设备制造有限公司 | Filler sealing performance detection method |
| CN114018491B (en) * | 2021-11-09 | 2023-08-29 | 浙江永贵电器股份有限公司 | Oil pressure shock absorber tightness detection method |
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