CN109253130A - Reciprocation sealing basic test system and test method - Google Patents
Reciprocation sealing basic test system and test method Download PDFInfo
- Publication number
- CN109253130A CN109253130A CN201811178464.6A CN201811178464A CN109253130A CN 109253130 A CN109253130 A CN 109253130A CN 201811178464 A CN201811178464 A CN 201811178464A CN 109253130 A CN109253130 A CN 109253130A
- Authority
- CN
- China
- Prior art keywords
- test
- jar
- cylinder
- valve
- main pump
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Examining Or Testing Airtightness (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The present invention provides a kind of reciprocation sealing basic test system and test method, the piston rod of the first test cylinder (jar) and the piston rod of the second test cylinder (jar) are connect with the piston rod of driving cylinder in the reciprocation sealing basic test system；First main pump input terminal is connect with the first fuel tank, first main pump output end is connected to for P mouthfuls with the first solenoid directional control valve, first A mouthfuls of solenoid directional control valve is connected to by the first test branch with the oil inlet of driving cylinder, the oil outlet of driving cylinder is connected to for B mouthfuls by the second test branch with the first solenoid directional control valve, and the first T mouthfuls of solenoid directional control valve is connect with the first fuel tank；Second main pump input terminal is connect with the second fuel tank, the oil inlet of the oil inlet of first test cylinder (jar) and the second test cylinder (jar) is connected to the second main pump output end, the oil outlet of the oil outlet of first test cylinder (jar) and the second test cylinder (jar) is connect with the first overflow valve input terminal, and the first overflow valve output end is connect with the second fuel tank.The system can obtain friction resistance curve, kinetic force of friction curve and leakage-cycle-index curve.
Description
Technical field
The present invention relates to sealing element experimental technique fields, more particularly to a kind of reciprocation sealing basic test system and test
Method.
Background technique
Hydraulic reciprocating movement property of sealing piece testing stand, the main pilot system by specially designing, to realize to subject
Sealing element applies the controls such as pressure loading, higher oil temperature environment, high the low speed reciprocating motion in specific change period, simulation sealing
The real work operating condition of part is tested, and is carried out to the Key Performance Indicators such as frictional behavior during test and abrasion, leakage
Measurement and record.Test result provides scientific basis for sealing element synthetic performance evaluation and using type selecting.
Existing pilot system lacks the control to the key variables for influencing reciprocation sealing installation and operation, reciprocation sealing
Experimental result will have unpredictability.But in order to obtain the correlation data of reciprocation sealing performance, be sealing element design and
It selects and foundation is provided, the pilot system of sealing element answers these key variables of strict control, and is strict with experimental condition.
Summary of the invention
(1) technical problems to be solved
The object of the present invention is to provide a kind of reciprocation sealing basic test system and test methods, it is intended at least solve existing
One of technical problem present in technology or the relevant technologies.
(2) technical solution
In order to solve the above-mentioned technical problem, in a first aspect, the present invention provides a kind of reciprocation sealing basic test system, packet
It includes: driving cylinder, the first test cylinder (jar) and the second test cylinder (jar)；
The piston rod of first test cylinder (jar) and the piston rod of the second test cylinder (jar) are connect with the piston rod of the driving cylinder；
First main pump input terminal is connected with the first fuel tank, and the first main pump output end is connected with the P of the first solenoid directional control valve mouth,
The A mouth of first solenoid directional control valve is connected by the first test branch with the oil inlet of the driving cylinder, the driving cylinder
Oil outlet by second test branch be connected with the B mouth of first solenoid directional control valve, the T of first solenoid directional control valve
Mouth is connected with first fuel tank；Second main pump input terminal is connected with the second fuel tank, the oil inlet of first test cylinder (jar)
Be connected with the second main pump output end with the oil inlet of second test cylinder (jar), the oil outlet of first test cylinder (jar) and
The oil outlet of second test cylinder (jar) is connected with the first overflow valve input terminal, the first overflow valve output end and described the
Two fuel tanks are connected.
Wherein, the first test branch includes first pressure gauge, first pressure sensor and the first shut-off valve；Described
The connection of the A mouth of the first end of one shut-off valve and first solenoid directional control valve, the first pressure gauge and the first pressure pass
Sensor is connect with the second end of first shut-off valve, the second end of first shut-off valve and the oil inlet of the driving cylinder
It is connected；
The second test branch includes second pressure gauge, second pressure sensor and the second shut-off valve；Described second section
Only the B mouth of the second end of valve and first solenoid directional control valve connects, the second pressure gauge and the second pressure sensor
It is connect with the first end of second shut-off valve, the first end of second shut-off valve is connected with the oil outlet of the driving cylinder
It is logical.
Wherein, the reciprocation sealing basic test system further includes control pump and the second overflow valve；
The control pump input terminal is connected with first fuel tank, the control pump output terminal and the first main pump control
End processed is connected after being connected with the second overflow valve input terminal, the second overflow valve output end and the first fuel tank phase
Connection.
Wherein, the A mouth of first solenoid directional control valve is connected by the second solenoid directional control valve with first fuel tank.
Wherein, the first main pump output end is connected by the first main pump filter with the P of the first solenoid directional control valve mouth,
The outlet end of the first main pump filter is connected with third test branch.
Wherein, the third test branch includes third pressure gauge, third pressure sensor and third overflow valve；
The input terminal of the third overflow valve, the third pressure gauge and the third pressure sensor are with described first
The outlet end of main pump filter connects, and the output end of the third overflow valve is connected with first fuel tank.
Wherein, the reciprocation sealing basic test system further includes the circulating filtration system being connected with first fuel tank
System；The circulated filter system includes the circulating pump and filter being sequentially communicated.
Wherein, the oil inlet of the oil inlet of first test cylinder (jar) and second test cylinder (jar) passes through the filtering of the second main pump
Device is connected with the second main pump output end.
Second aspect, the present invention provide a kind of test method using reciprocation sealing basic test system described above,
Include: to adjust the first main pump to keep reciprocation sealing basic test flow system flow to stablize, obtains the piston rod speed of driving cylinder.
Wherein, further includes: adjust the first overflow valve to keep the pressure of the oil-filled chamber of the first test cylinder (jar) and the second test cylinder (jar)
Stablize, obtains the precharge pressure of the first test cylinder (jar) and the second test cylinder (jar).
(3) beneficial effect
Compared with prior art, the invention has the following advantages that
A kind of reciprocation sealing basic test system and test method provided by the invention, the reciprocation sealing basic test system
The first main pump of middle adjusting obtains the piston rod speed of driving cylinder to keep reciprocation sealing basic test flow system flow to stablize；It adjusts
First overflow valve obtains the first test cylinder (jar) and second to keep the pressure of the oil-filled chamber of the first test cylinder (jar) and the second test cylinder (jar) to stablize
The precharge pressure of test cylinder (jar)；The piston rod of first test cylinder (jar) and the piston rod speed of service of the second test cylinder (jar) and the first test are set
The oil pressure of the oil-filled chamber of the oil-filled chamber of cylinder and the second test cylinder (jar) obtains the leakage flow of the first test cylinder (jar) and the second test cylinder (jar).It should
Reciprocation sealing basic test system drags two test cylinder (jar)s using driving cylinder, can carry out four groups of sealing tests simultaneously, synchronous reciprocating,
Comparative strong, testing efficiency is high；Using leakage rate on-line measurement system, measuring accuracy and high degree of automation reduction work are strong
Degree, can eliminate subjective error.
Detailed description of the invention
Fig. 1 is a kind of hydraulic principle schematic diagram of reciprocation sealing basic test system of the embodiment of the present invention；
In figure: the first main pump of 1-；2- control pump；3- the first main pump filter；The first solenoid directional control valve of 4-；5- driving cylinder；
The first shut-off valve of 6-；The second shut-off valve of 7-；8- first pressure sensor；9- first pressure gauge；10- second pressure gauge；11- second
Pressure sensor；The first test cylinder (jar) of 12-；The second test cylinder (jar) of 13-；14- the second main pump filter；The second main pump of 15-；16- the 4th
Overflow valve；The first overflow valve of 17-；The first force snesor of 18-；The second force snesor of 19-；20- displacement speed sensor；21-
Two solenoid directional control valves；22- third pressure sensor；23- third pressure gauge；24- third overflow valve；25- circulating pump；26- filtering
Device；The second overflow valve of 27-.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiments of the present invention will be described in further detail.Following instance
For illustrating the present invention, but it is not intended to limit the scope of the invention.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on the figure or
Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the system of indication or suggestion meaning or element must
There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the present invention, the meaning of " plurality " is at least two, such as two, three
It is a etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected or can communicate each other；It can be directly connected, can also indirectly connected through an intermediary, it can be with
It is the interaction relationship of the connection or two elements inside two elements, unless otherwise restricted clearly.For this field
For those of ordinary skill, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
Fig. 1 is a kind of hydraulic principle schematic diagram of reciprocation sealing basic test system of the embodiment of the present invention, as shown in Figure 1,
It include: driving cylinder 5, the first test cylinder (jar) 12 and the second test cylinder (jar) 13；The piston rod of first test cylinder (jar) 12 and the second test cylinder (jar) 13
Piston rod is connect with the piston rod of driving cylinder 5；Displacement speed sensor 20, the first examination are installed on the piston rod of driving cylinder 5
It tests on the piston rod of cylinder 12 and first force snesor 18 is installed, second force snesor is installed on the piston rod of the second test cylinder (jar) 13
19；First temperature sensor (not shown) and first pressure sensor (figure are installed in the oil-filled chamber of the first test cylinder (jar) 12
In be not shown), second temperature sensor (not shown) is installed in the oil-filled chamber of the second test cylinder (jar) 13 and second pressure passes
Sensor (not shown) is equipped with first flow sensor (not shown) in the leakage oil pocket of the first test cylinder (jar) 12, and
Second flow sensor (not shown) is installed in the leakage oil pocket of two test cylinder (jar)s 13；
Wherein, the input terminal of the first main pump 1 is connected with the first fuel tank (not shown), 1 output end of the first main pump with
The P mouth of first solenoid directional control valve 4 is connected, the A mouth of the first solenoid directional control valve 4 by the first test branch and driving cylinder 5 into
Hydraulic fluid port is connected, and the oil outlet of driving cylinder 5 is connected by the second test branch with the B mouth of the first solenoid directional control valve 4, the first electricity
The T mouth of magnetic reversal valve 4 is connected with the first fuel tank；
Wherein, the input terminal of the second main pump 15 is connected with the second fuel tank (not shown), the first test cylinder (jar) 12 into
The oil inlet of hydraulic fluid port and the second test cylinder (jar) 13 is connected with the output end of the second main pump 15, the oil outlet of the first test cylinder (jar) 12 and
The oil outlet of second test cylinder (jar) 13 is connected with the input terminal of the first overflow valve 17, the output end and second of the first overflow valve 17
Fuel tank is connected.
It is understood that the output end of the first overflow valve 17 is connected by cooler with the second fuel tank.
In the present embodiment, the first solenoid directional control valve 4 is for controlling oil liquid flow direction.First fuel tank lower part is equipped with fuel outlet valve
(not shown), electric heater (not shown), liquidometer (not shown), third temperature sensor (do not show in figure
Out) and air cleaner (not shown), these hydraulic services mainly play monitoring to the working condition of pilot system
Effect.Liquidometer uses magnetic turning plate formula liquidometer, and float is by floating ball magnetic in connecting rod and top main pipe in the conduit of lower part
It is connected, when liquid level changes, floating ball drive magnet steel moves up and down in main pipe drives the white turned column of display unit dividend or more to turn over
Turn, liquid level is shown on panel.Liquidometer is mounted on the magnetic sheet that the first fuel tank is overturn on the first main pump side, liquidometer
For observing the liquid level in the first fuel tank, three relays are for remotely controlling.Three liquid levels of the experiment system design: ultralow
Position, low level and a high position.When liquid level is higher than a high position in the first fuel tank, touch screen interface display sending is accordingly promoted and alarm report
It is alert, remind staff to stop refueling into the first fuel tank；When liquid level is lower than low level in the first fuel tank, then touch screen interface has phase
Should be promoted and alarm equipment alarm, promote staff and need the repairing into the first fuel tank, when in the first fuel tank liquid level lower than ultralow
Position, then touch screen interface has corresponding promotion, same to alarm, and the first main pump motor to shut down, and prevents the first main pump from damaging.
Third temperature sensor sets 15 DEG C, 50 DEG C, 60 DEG C, and when oil liquid temperature is lower than 15 DEG C, the first main pump stops working,
Electric heater starting；When temperature reaches 10 DEG C, the first main pump work, electric heater keeps work, heats to oil liquid；When temperature reaches
To 15 DEG C, electric heater stops working, the work of the first main pump；When temperature reaches 50 DEG C, cooling device starts, when temperature is lower than 50
DEG C, cooling device stops working, the work of the first main pump；When temperature is greater than 60 DEG C, the first main pump stops working, circulated filter system
Work.Air cleaner communicates the first fuel tank with atmosphere, filters out the sundries in air.The first fuel tank can be exhausted by opening fuel outlet valve
In greasy dirt.
In the present embodiment, circulated filter system includes the circulating pump 25 being sequentially communicated, filter 26.Circulated filter system
For, in case outer circulation, filtering out the impurity in oil liquid to the oil liquid in the first fuel tank.Mainly there are three screw pump, one in the part
Platform fine filter and a cooler composition.Three screw pump start and stop are controlled on station by operator, and filter is to oil liquid
It is filtered, there is differential pressure transmitter device on fine filter, when filter core blocks, spool is changed in signalling generator alarm, promotion.When normal work,
Electromagnetic water valve (not shown) is opened, and oil liquid returns to the first fuel tank, when filter overhauls or other reasons do not work, is closed
Close electromagnetic water valve.
It should be noted that circulated filter system further includes the 4th pressure gauge (not shown) and the 5th overflow valve
The outlet end of (not shown), the 4th pressure gauge and circulating pump connects, the outlet of the input terminal and circulating pump of the 5th overflow valve
End connection, the output end of the 5th overflow valve are connected with the first fuel tank.
Wherein, the first main pump 1 is proportioning pump, pumps upper proportional direction valve input signal change ratio pumpage by adjusting.
Second main pump 15 is constant displacement pump.
In the present embodiment, the first main pump is adjusted to keep reciprocation sealing basic test flow system flow to stablize, and obtains driving
The piston rod speed of cylinder；Adjust the first overflow valve with keep the oil-filled chamber of the first test cylinder (jar) and the second test cylinder (jar) pressure stablize,
Obtain the precharge pressure of the first test cylinder (jar) and the second test cylinder (jar)；The piston rod of first test cylinder (jar) and the piston of the second test cylinder (jar) are set
The oil pressure of the oil-filled chamber of the oil-filled chamber and the second test cylinder (jar) of the bar speed of service and the first test cylinder (jar), obtains the first test cylinder (jar) and second
The leakage flow of test cylinder (jar).The reciprocation sealing basic test system drags two test cylinder (jar)s using driving cylinder, can carry out four simultaneously
Group sealing test, synchronous reciprocating, comparative strong, testing efficiency is high；Using leakage rate on-line measurement system, measuring accuracy and automatic
Change degree height reduces working strength, can eliminate subjective error.
In addition, according to an embodiment of the invention, the first test branch includes first pressure gauge 9,8 and of first pressure sensor
First shut-off valve 6；The connection of the A mouth of the first end of first shut-off valve 6 and the first solenoid directional control valve 4, first pressure gauge 9 and the first pressure
Force snesor 8 is connect with the second end of the first shut-off valve 6, and the second end of the first shut-off valve 6 is connected with the oil inlet of driving cylinder 5
It is logical；
Second test branch includes second pressure gauge 10, second pressure sensor 11 and the second shut-off valve 7；Second shut-off valve
The connection of the B mouth of 7 second end and the first solenoid directional control valve 4, second pressure gauge 10 and second pressure sensor 11 with second section
Only the first end connection of valve 7, the first end of the second shut-off valve 7 are connected with the oil outlet of driving cylinder 5.
In the present embodiment, pass through the A mouth and driving cylinder 5 of the first test available first solenoid directional control valve 4 of branch
Pressure parameter between oil inlet；Pass through the B mouth and driving cylinder 5 of the second test available first solenoid directional control valve 4 of branch
Pressure parameter between oil outlet.
In addition, according to an embodiment of the invention, reciprocation sealing basic test system further includes control pump 2 and the second overflow valve
27；Control 2 input terminals of pump are connected with the first fuel tank, and control pumps after 2 output ends are connected with the control terminal of the first main pump 1 with the
Two overflow valves, 27 input terminal is connected, and the output end of the second overflow valve 27 is connected with the first fuel tank.
Wherein, control pump is for providing control oil for the first main pump.
It should be noted that control 2 output ends of pump are also equipped with the 5th pressure gauge (not shown), pass through the 5th pressure
Table monitoring pressure in real time parameter, using the data basis as the second overflow valve 27 of adjusting.
In addition, according to an embodiment of the invention, the A mouth of the first solenoid directional control valve 4 passes through the second solenoid directional control valve 21 and the
One fuel tank is connected.
In the present embodiment, the A mouth of the first solenoid directional control valve 4 is connect with the first end of the second solenoid directional control valve 21, and second
The second end of solenoid directional control valve 21 is connected by throttle valve (not shown) with the first fuel tank.Pass through the second electromagnetic switch
Valve 21 can adjust the oil pressure of the first test branch in real time.
In addition, according to an embodiment of the invention, 1 output end of the first main pump passes through the first main pump filter 3 and the first electromagnetism
The P mouth of reversal valve 4 is connected, and the outlet end of the first main pump filter 3 is connected with third test branch.
In the present embodiment, third test branch includes that third pressure gauge 23, third pressure sensor 22 and third are overflow
Flow valve 24；Input terminal, third pressure gauge 23 and the third pressure sensor 22 of third overflow valve 24 with the first main pump filter 3
Outlet end connection, the output end of third overflow valve 24 is connected with the first fuel tank.
In addition, according to an embodiment of the invention, the oil inlet of the oil inlet of the first test cylinder (jar) 12 and the second test cylinder (jar) 13 is equal
It is connected by the second main pump filter 14 with the output end of the second main pump 15.
In the present embodiment, the output end of the second main pump 15 is connect with the input terminal of the 4th overflow valve 16, the 4th overflow valve
16 output end is connected with the second fuel tank, and the output end of the second main pump 15 is also equipped with the 6th pressure gauge (not shown).
The embodiment of the present invention provides a kind of test method using above-mentioned reciprocation sealing basic test system, comprising: adjusts
The first main pump is saved to keep reciprocation sealing basic test flow system flow to stablize, obtains the piston rod speed of driving cylinder.
In addition, according to an embodiment of the invention, the test method further include: adjust the first overflow valve to keep the first test
The pressure of the oil-filled chamber of cylinder and the second test cylinder (jar) is stablized, and the precharge pressure of the first test cylinder (jar) and the second test cylinder (jar) is obtained.
In addition, according to an embodiment of the invention, the test method further include: the piston rod and second of the first test cylinder (jar) of setting
The oil pressure of the oil-filled chamber of the piston rod speed of service of test cylinder (jar) and the oil-filled chamber of the first test cylinder (jar) and the second test cylinder (jar), obtains first
The leakage flow of test cylinder (jar) and the second test cylinder (jar).
The reciprocation sealing basic test system can be automatically performed hydraulic reciprocating movement sealing element under the conditions of specified pressure
Trial operation, static test, starting friction testing, dynamic pressure-speed loop test, kinetic force of friction test process；To obtain
Take projects, the testing process such as starting friction resistance curve, kinetic force of friction curve, leakage-cycle-index curve as follows:
(1) preparation is detected
A. it is taken every time by GB/T10610-2009 along the axially measured test piston rod surface roughness Ra of piston rod and Rt
Sample length 0.8mm evaluates length 4mm.
B. new test seals ruler d1, d2, S1, S2 and h are measured using the non-contact measuring device that resolution ratio is 0.02mm.
(2) trial operation and the intrinsic frictional force Fi test of attachment
Before pilot project does not carry out formally, trial operation is first carried out, is completed in two steps: test run before subject sealing element installation
Row, trial operation after subject sealing element installation.
C. trial operation before subject sealing element is installed: first by all elements such as guide sleeve, dustband (except subject sealing
It is installed outside) by formal test state.Test cylinder (jar) working chamber by circulation hydraulic system fill low pressure oil (circulation ratio valve to zero letter
Number) be lubricated and be vented, driving cylinder is controlled compared with low velocity (0.15m/s) operation 5 minutes, abundant running-in.Then remember respectively
Friction force value detected by force snesor on two test cylinder piston rods under record two kinds of velocity conditions of 0.15m/s, 0.5m/s, as
The intrinsic frictional force Fi of attachment.
D. trial operation after subject sealing element is installed: subject cylinder will be installed to outside subject sealing on the basis of previous step
It is interior, it is installed by formal test state.Test cylinder (jar) working chamber by circulation hydraulic system fill low pressure oil (circulation ratio valve to zero letter
Number) be lubricated and be vented, control driving cylinder to run 5 minutes compared with low velocity (0.15m/s) or more, abundant running-in.
(3) formal test step
E. oil temperature is raised to test temperature.
F. experimental rig moves back and forth 1h with linear velocity v, stable pressure p 1.
G. it measures kinetic force of friction Ft: before reciprocating motion terminates, recording the friction resistance curve of at least one circulation, and record
Frictional force Ft.
H. static test: stop moving back and forth, maintain test pressure p1 and test temperature 16h.
I. measurement starts frictional force Fq: setting test loop pressure starts static test period (such as 16h)；It completes static
After test period, driving circuit pressure is adjusted to zero；Set test speed and piston rod movement direction, relative test sealing element
A makees forward stroke；Gradually increasing driving circuit pressure makes piston rod start to move, and record piston rod starts the friction of mobile moment
Power, as starting frictional force Fq.
J. increase driving circuit pressure to overcome frictional force when operation, experimental rig continuation is wanted with linear velocity v by circulation
Reciprocating motion is asked, pressure replaces between forward stroke p1 and backstroke p2.
K. 200000 uninterrupted circulations (when linear velocity is 0.05m/s, completing 60000 circulations) are completed.If circulation
It interrupts, ignores restarting to leakage when reaching steady state.
L. it in uninterrupted cyclic process, after every test for 24 hours and after completing 200000 circulations, collects, measure and record
The leakage rate of each sealing element.
M. after completing uninterrupted circulation, the frictional force under constant pressure is measured.
N. continue to move back and forth by the requirement of j.
O. uninterrupted to complete to amount to 300000 circulations.It completes to amount to 100000 circulations when speed is 0.05m/s.
P. after completing uninterrupted circulation, the frictional force under constant pressure is measured by g.
Q. starting frictional force is measured again by h, i.
R. stop test.
S. the test seals removed by b measurement, and the situation of sealing element is taken pictures and recorded.
T. leakage-cycle-index curve: since the leakage rate of sealing element is smaller, the online leakage test system of proposed adoption.
Test macro obtains the corresponding leakage oil mass of different cycle-indexes in real time, and is stored.Data drafting is let out after test
Leakage-cycle-index curve.
In order to obtain reasonable data, each type seal should at least carry out 6 tests.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of reciprocation sealing basic test system characterized by comprising driving cylinder, the first test cylinder (jar) and the second test cylinder (jar)；
The piston rod of first test cylinder (jar) and the piston rod of the second test cylinder (jar) are connect with the piston rod of the driving cylinder；First
Main pump input terminal is connected with the first fuel tank, and the first main pump output end is connected with the P of the first solenoid directional control valve mouth, described
The A mouth of first solenoid directional control valve is connected by the first test branch with the oil inlet of the driving cylinder, and the driving cylinder goes out
Hydraulic fluid port by second test branch be connected with the B mouth of first solenoid directional control valve, the T mouth of first solenoid directional control valve and
First fuel tank is connected；Second main pump input terminal is connected with the second fuel tank, the oil inlet of first test cylinder (jar) and institute
The oil inlet for stating the second test cylinder (jar) is connected with the second main pump output end, the oil outlet of first test cylinder (jar) and described
The oil outlet of second test cylinder (jar) is connected with the first overflow valve input terminal, the first overflow valve output end and second oil
Case is connected.
2. reciprocation sealing basic test system as described in claim 1, which is characterized in that the first test branch includes the
One pressure gauge, first pressure sensor and the first shut-off valve；The first end of first shut-off valve and first electromagnetic switch
The A mouth of valve connects, and the first pressure gauge and the first pressure sensor are connect with the second end of first shut-off valve,
The second end of first shut-off valve is connected with the oil inlet of the driving cylinder；
The second test branch includes second pressure gauge, second pressure sensor and the second shut-off valve；Second shut-off valve
Second end and first solenoid directional control valve the connection of B mouth, the second pressure gauge and the second pressure sensor with
The first end of second shut-off valve connects, and the first end of second shut-off valve is connected with the oil outlet of the driving cylinder.
3. reciprocation sealing basic test system as described in claim 1, which is characterized in that reciprocation sealing basic test system
System further includes control pump and the second overflow valve；
The control pump input terminal is connected with first fuel tank, the control pump output terminal and the first main pump control terminal
It is connected after being connected with the second overflow valve input terminal, the second overflow valve output end is connected with first fuel tank
It connects.
4. reciprocation sealing basic test system as described in claim 1, which is characterized in that the A of first solenoid directional control valve
Mouth is connected by the second solenoid directional control valve with first fuel tank.
5. reciprocation sealing basic test system as described in claim 1, which is characterized in that the first main pump output end passes through
First main pump filter is connected with the P of the first solenoid directional control valve mouth, and the outlet end of the first main pump filter is connected with
Three test branches.
6. reciprocation sealing basic test system as claimed in claim 5, which is characterized in that third test branch includes the
Three pressure gauges, third pressure sensor and third overflow valve；
The input terminal of the third overflow valve, the third pressure gauge and the third pressure sensor with first main pump
The outlet end of filter connects, and the output end of the third overflow valve is connected with first fuel tank.
7. reciprocation sealing basic test system as described in claim 1, which is characterized in that reciprocation sealing basic test system
System further includes the circulated filter system being connected with first fuel tank；The circulated filter system includes the circulation being sequentially communicated
Pump and filter.
8. reciprocation sealing basic test system as described in claim 1, which is characterized in that the oil inlet of first test cylinder (jar)
Pass through the second main pump filter with the oil inlet of second test cylinder (jar) to be connected with the second main pump output end.
9. a kind of test method using reciprocation sealing basic test system as claimed in any one of claims 1 to 8, feature
It is, comprising:
The first main pump is adjusted to keep reciprocation sealing basic test flow system flow to stablize, obtains the piston rod speed of driving cylinder.
10. test method as claimed in claim 9, which is characterized in that further include: the first overflow valve is adjusted to keep the first examination
The pressure for testing the oil-filled chamber of cylinder and the second test cylinder (jar) is stablized, and the precharge pressure of the first test cylinder (jar) and the second test cylinder (jar) is obtained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811178464.6A CN109253130B (en) | 2018-10-10 | 2018-10-10 | Reciprocating seal foundation test system and test method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811178464.6A CN109253130B (en) | 2018-10-10 | 2018-10-10 | Reciprocating seal foundation test system and test method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109253130A true CN109253130A (en) | 2019-01-22 |
| CN109253130B CN109253130B (en) | 2020-09-11 |
Family
ID=65045902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811178464.6A Active CN109253130B (en) | 2018-10-10 | 2018-10-10 | Reciprocating seal foundation test system and test method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109253130B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110617959A (en) * | 2019-10-18 | 2019-12-27 | 湖南科技大学 | Detection apparatus for simulation deep sea environment reciprocating motion sealing washer sealing performance |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004068663A (en) * | 2002-08-05 | 2004-03-04 | Saginomiya Seisakusho Inc | Pressure generating device |
| CN2893692Y (en) * | 2006-03-08 | 2007-04-25 | 新冀机械有限公司 | Reciprocating oil-seal sealing service life testing machine |
| CN102507166A (en) * | 2011-10-17 | 2012-06-20 | 西南石油大学 | Bilaterally-charging high-pressure dynamic-seal test bed and test method |
| JP5396373B2 (en) * | 2010-11-19 | 2014-01-22 | 株式会社キョーワ | Hydraulic test pump |
| CN203404164U (en) * | 2013-08-13 | 2014-01-22 | 湖南特力液压有限公司 | Test equipment for testing durability of sealing element of hydraulic cylinder |
| CN105628309A (en) * | 2015-12-25 | 2016-06-01 | 大连理工大学 | Rubber ring high pressure dynamic sealing test device under extreme conditions |
| CN106194900A (en) * | 2016-08-30 | 2016-12-07 | 武汉理工大学 | A kind of hydraulic reciprocating seals dynamic property detection device and design |
| CN107605862A (en) * | 2017-10-31 | 2018-01-19 | 中国重型机械研究院股份公司 | A kind of reciprocating motion type piston seal experimental rig |
-
2018
- 2018-10-10 CN CN201811178464.6A patent/CN109253130B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004068663A (en) * | 2002-08-05 | 2004-03-04 | Saginomiya Seisakusho Inc | Pressure generating device |
| CN2893692Y (en) * | 2006-03-08 | 2007-04-25 | 新冀机械有限公司 | Reciprocating oil-seal sealing service life testing machine |
| JP5396373B2 (en) * | 2010-11-19 | 2014-01-22 | 株式会社キョーワ | Hydraulic test pump |
| CN102507166A (en) * | 2011-10-17 | 2012-06-20 | 西南石油大学 | Bilaterally-charging high-pressure dynamic-seal test bed and test method |
| CN203404164U (en) * | 2013-08-13 | 2014-01-22 | 湖南特力液压有限公司 | Test equipment for testing durability of sealing element of hydraulic cylinder |
| CN105628309A (en) * | 2015-12-25 | 2016-06-01 | 大连理工大学 | Rubber ring high pressure dynamic sealing test device under extreme conditions |
| CN106194900A (en) * | 2016-08-30 | 2016-12-07 | 武汉理工大学 | A kind of hydraulic reciprocating seals dynamic property detection device and design |
| CN107605862A (en) * | 2017-10-31 | 2018-01-19 | 中国重型机械研究院股份公司 | A kind of reciprocating motion type piston seal experimental rig |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110617959A (en) * | 2019-10-18 | 2019-12-27 | 湖南科技大学 | Detection apparatus for simulation deep sea environment reciprocating motion sealing washer sealing performance |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109253130B (en) | 2020-09-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201828400U (en) | Electromagnetic valve and valve body performance detection device for automatic transmission | |
| CN104236817B (en) | A kind of plunger cylinder sleeve movable sealing performance test methods and device | |
| CN104074839B (en) | A kind of hydraulic motor test stand | |
| CN109253131A (en) | Governor valve test macro and test method | |
| CN102865271A (en) | Detection method and device of internal leakage of hydraulic valve | |
| CN203404164U (en) | Test equipment for testing durability of sealing element of hydraulic cylinder | |
| CN109060270A (en) | It is a kind of can on-line checking slip and frictional force reciprocation sealing experimental provision | |
| CN103410810A (en) | Testing device for testing durability of sealing parts of hydraulic cylinder | |
| CN103557204B (en) | A kind of hydraulicdirectional control valve contamination wear and Environment restore test stand | |
| CN204461970U (en) | A kind of measurement mechanism controlling the standard instruments calibrating of air flow source | |
| CN105387886A (en) | Ball valve dynamic characteristic parameter test system and test method | |
| CN106168564A (en) | A kind of device and method measuring refrigerator oil and cold-producing medium blending agent | |
| CN104895871A (en) | Comprehensive and energy-saving testing device and method for reliability of electromagnetic valves and hydraulic cylinders | |
| CN205047582U (en) | Leak testing system in compound pneumatic cylinder | |
| CN108730748A (en) | A kind of automatic gear-box oil changing machine and method of changing oil | |
| CN109253130A (en) | Reciprocation sealing basic test system and test method | |
| CN106441739B (en) | A kind of electrical modulation flow control valve combination property test desk | |
| CN112879389A (en) | Abnormal leakage detection system of hydraulic system | |
| KR102294964B1 (en) | Apparatus for monitoring the state of valve body, and hydraulic pressure driving apparatus | |
| CN210660532U (en) | Oil pump hydraulic test system | |
| CN208721348U (en) | It is a kind of can on-line checking slip and frictional force reciprocation sealing experimental provision | |
| CN105865773B (en) | Top load antifriction plate testing machine | |
| CN210141244U (en) | Hydraulic pump performance testing device | |
| CN208687339U (en) | A kind of automatic gear-box oil changing machine | |
| CN204115987U (en) | A kind of plunger cylinder sleeve motive seal performance testing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220601 Address after: 214000 No.1 Hongteng Road, Qingyang Town, Jiangyin City, Wuxi City, Jiangsu Province Patentee after: JIANGYIN HONGTENG MACHINERY Co.,Ltd. Address before: 430081 Wuhan University of science and technology, 947 Heping Avenue, Qingshan District, Wuhan City, Hubei Province Patentee before: WUHAN University OF SCIENCE AND TECHNOLOGY |
|
| TR01 | Transfer of patent right |