CN107167394A - A kind of polar region ship plate ultralow temperature frictional experiment system - Google Patents
A kind of polar region ship plate ultralow temperature frictional experiment system Download PDFInfo
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- CN107167394A CN107167394A CN201710391943.5A CN201710391943A CN107167394A CN 107167394 A CN107167394 A CN 107167394A CN 201710391943 A CN201710391943 A CN 201710391943A CN 107167394 A CN107167394 A CN 107167394A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/56—Investigating resistance to wear or abrasion
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/60—Investigating resistance of materials, e.g. refractory materials, to rapid heat changes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0026—Combination of several types of applied forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0032—Generation of the force using mechanical means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/022—Environment of the test
- G01N2203/0222—Temperature
- G01N2203/0228—Low temperature; Cooling means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/026—Specifications of the specimen
- G01N2203/0262—Shape of the specimen
- G01N2203/0278—Thin specimens
- G01N2203/0282—Two dimensional, e.g. tapes, webs, sheets, strips, disks or membranes
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- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The invention discloses a kind of polar region ship plate ultralow temperature frictional experiment system, for simulating polar region navigating ship in the lab in the environment that navigates by water or open ice, the behavior such as test ship plate and fretting wear, shock, the low-temperature corrosion of ice face at low ambient temperatures.Comprising：Device framework, is the main space for carrying out ultralow temperature friction test；It is connected and fixed on refrigeration module in device framework, heat preservation module, heat exchange module, pulls module；Refrigeration module is used to need Control experiment room temperature according to experimental enviroment；Heat preservation module is used to isolate test cabinet with exterior space；Heat exchange module realizes the heat exchange between test cabinet and refrigeration module using the flowing of refrigerant；Module towing test piece is pulled, test piece is moved back and forth.The present invention can authentic testing steel plate in environment temperature from room temperature in the case of 60 DEG C, the collision performance of friction and wear behavior and ship plate and ice sheet between different loads and different translational speed lower steel plates and sea ice.
Description
Technical field
The present invention relates to fretting wear, corrosion and impact of the test polar region ship plate under ultra-low temperature surroundings with ice face
The experimental system of energy, more particularly to a kind of polar region ship plate ultralow temperature frictional experiment system.
Background technology
With the aggravation of Global Greenhouse Effect, the sea-ice area of polar region region overlay quickly reduces polar regions region
Environment is also advantageously in shipping business and the progress of energy development.The shipbuilding steel plate of polar region region navigation can be by during navigation
To the continuous shock of ice sheet, repeated stock and friction of the ice sheet to ship plate can destroy shell and then ship plate is produced change
Shape and fatigue failure, ship plate should have stronger ice-breaking capacity and anti-ice surface wear ability, to bear the dynamic of ice sheet, connect
Continuous shock loading.Studying that the various normal temperature and cryogenic mechanics performance of steel plate have very much for the ship that is navigated by water in polar region region must
Will.
The content of the invention
, being capable of authentic testing steel plate it is an object of the invention to provide a kind of polar region ship plate ultralow temperature frictional experiment system
In environment temperature from room temperature in the case of -60 DEG C, the friction between different loads and different translational speed lower steel plates and sea ice is ground
Damage performance and ship plate and the collision performance on iceberg.
In order to realize the above object the present invention is achieved by the following technical solutions：
A kind of polar region ship plate ultralow temperature frictional experiment system, is characterized in, comprising：
Device framework, it is provided with a test cabinet；
It is connected and fixed on refrigeration module in device framework, heat preservation module, heat exchange module, pulls module；
Described refrigeration module is used to need Control experiment room temperature according to experimental enviroment；
Described heat preservation module is used to isolate test cabinet with exterior space；
Described heat exchange module realizes the heat exchange between test cabinet and refrigeration module using the flowing of refrigerant；
Described dragging module towing test piece, moves back and forth test piece.
An ice bank is provided with described test cabinet；
Described refrigeration module is included：
Refrigeration unit, it is connected with heat exchange module；
Cooling tower, it is connected by cooling water circulation water pipe with refrigeration unit；
Liquid nitrogen container, air-compressor set, test cabinet is connected to after its parallel connection.
Described heat preservation module is arranged on ice bank and test cabinet surrounding；Described heat preservation module offers several observation windows
And hermatic door.
Described heat exchange module is included：
Heat-exchange tube, heat exchange return duct, it is connected by heat exchange control valve with refrigeration unit respectively, described heat-exchange tube
It is evenly arranged in test cabinet and ice bank；
Several circulating fans, it is arranged at the top of test cabinet, for test cabinet inner air flow.
Polar region as claimed in claim 1 ship plate ultralow temperature frictional experiment system, it is characterised in that described dragging
Module is included：
Wirerope-winding component, several leading block groups, several tensioning wheel groups, steel wire rope limited block, pulling force sensor, institute
State wirerope-winding component and include a steel wire rope, described steel wire rope is arranged in several leading block groups, several tensioning wheels
Group, steel wire rope limited block and pulling force sensor；
Steel wire rope limit switch, when described steel wire rope limited block is contacted with steel wire rope limit switch, described wirerope-winding
Component is stopped；
Tensioning spring, described tensioning wheel group is connected by tensioning spring with device framework.
A load-on module is also included, it is included：
Workpiece firm banking, it pushes down described test piece；
A pair of deflectors, it is arranged on the both sides of workpiece firm banking, the frictional direction of the described test piece of guiding；
The counterweight guide rod on workpiece firm banking is vertically arranged in, for loading counterweight；
Steel wire rope fixed seat, it is connected and fixed steel wire rope with workpiece firm banking；
Pull described steel wire rope so that workpiece firm banking, which is pulled, to be moved back and forth.
Described wirerope-winding component is included：
Base is wound, it is provided with guide rail；
Winding disc sliding seat, it is arranged on guide rail；
Be arranged on the winding disc on winding disc sliding seat, its one end is connected with wire rope rotating axle, the other end through torque sensor,
Shaft coupling is connected with winding motor；
First synchronous pulley, it is connected with wire rope rotating axle；
Second synchronous pulley, screw mandrel, the second described synchronous pulley mutually link with the first synchronous pulley, and are connected with screw mandrel,
Described screw mandrel is arranged at winding base.
Described winding base is provided with first, second and third travel switch；
Described winding disc sliding seat is provided with first and second limiting plate；
The described screw mandrel of rotation so that described screw mandrel drives winding disc sliding seat to be moved on guide rail, when the first described limit
When position plate and the first stroke switch contact, wind motor stalls and start reversion, when the second limiting plate is opened with the second stroke
When closing contact, winding motor stalls start to rotate forward.
Also include：
Monitoring module is measured, for measuring the temperature in process of the test, pressure, speed, acceleration parameter；
Control module, startup and stopping for control system.
The present invention compared with prior art, with advantages below：
The present invention can authentic testing steel plate in environment temperature from room temperature in the case of -60 DEG C, different loads and different mobile speed
The friction and wear behavior and the collision performance of ship plate and ice cube spent between lower steel plate and sea ice.
Brief description of the drawings
Fig. 1 is a kind of structure total figure of polar region ship plate ultralow temperature frictional experiment system of the invention；
Fig. 2 is the structural representation of load-on module of the present invention；
Fig. 3 is dragging module diagram；
Fig. 4 is wirerope-winding component diagram.
Embodiment
Below in conjunction with accompanying drawing, by describing a preferably specific embodiment in detail, the present invention is further elaborated.
As shown in figure 1, a kind of polar region ship plate ultralow temperature frictional experiment system, comprising：Device framework 100, it is provided with
One test cabinet 150；It is connected and fixed on refrigeration module 200 in device framework, heat preservation module 300, heat exchange module 400, pulls
Module 500；Described refrigeration module 200 is used to need Control experiment room temperature according to experimental enviroment；Described heat preservation module 300
For test cabinet to be isolated with exterior space；Described heat exchange module 400 realizes test cabinet and system using the flowing of refrigerant
Heat exchange between chill block；The described towing test piece of dragging module 500, moves back and forth test piece；Measurement prison
Module 600 is controlled, for measuring the temperature in process of the test, pressure, speed, acceleration parameter；Control module 700, for controlling
The startup and stopping of system.
The experimental system can really simulate fretting wear of the hull plate of polar region navigating ship in low temperature environment
Performance, length including but not limited to 5m~100m, width including but not limited to 1m~30m, highly including but not limited to
2m~4m, experimental work temperature range is：Room temperature~-60 DEG C, pull speed：0~15m/s, maximum load power：50KN, it is maximum
Drag force：50KN.
Device framework 100, is welded using materials such as square tube, angle bar, channel-section steels, the length bag of the device framework 100
Contain but be not limited to 5m~100m, width is including but not limited to 1m~30m, highly including but not limited to 2m~4m, equipment
The inside of framework 100 and heat preservation module 300, heat exchange module 400, dragging module 500, measurement monitoring module 600, control module
700 connections, provide installation site and placement space, and provide necessary various connected modes for each module.
The outside of device framework 100 is sealed after using thickness for 1mm-2mm steel plate metal plate bending, device framework bottom and four
Week and top are provided with heat preservation module 300, and the test cabinet in device framework is equipped with ice bank 110.
The size of ice bank 110 is（Length）8m~90m X（Width）0.5m ~ 28m, depth is 0.3m ~ 2m；Using
Sus304 stainless steel plates are welded, and heat-insulation layer is surrounded by outside the ice bank 110.Described test ice bank built with heat-exchange tube 410,
The heat-exchange tube 410 is connected with refrigeration module 200, the refrigerant that the filling of the inside of heat-exchange tube 410 can be flowed；Described ice
Intake-discharge pipe 120 is installed in groove 110, and equipped with control valve, it is possible to achieve filling and emptying to seawater in ice bank；Described
Seawater can be natural sea-water or manually prepare seawater.Multiple temperature sensors 140 are installed in the ice bank 110, can be with
Ice cube temperature is measured in real time；The temperature sensor 140 is connected with control module 700, can will monitor temperature in real time
And feed back to control module.
Wherein, the surrounding of test cabinet 150 surrounded by device framework 100, heat preservation module 300 is provided with heat-exchange tube 410,
Temperature sensor 180 and circulating fan 450 are installed at the top of device framework and surrounding.
Described refrigeration module 200 is included：Refrigeration unit 210, it is connected with heat exchange module 300；Cooling tower 220,
It is connected by cooling water circulation water pipe with refrigeration unit；Liquid nitrogen container, air-compressor set, test cabinet is connected to after its parallel connection.Refrigeration
Module 200 can reach design temperature and the maintenance of test cabinet 150 according to test requirements document.Refrigeration temperature levels are from room temperature to -60
℃。
Refrigeration unit 210 is Two-stage Compression unit, can realize that test environment is required and maintained in the refrigeration of higher temperature
Cold of the test cabinet 150 when compared with low temperature is maintained, and includes compressor, cooling fan, refrigerant tubing composition；Described refrigerant
Including but not limited to R22, R23, R410a, R407c, R134a, R404 etc..The refrigerant group connects with heat exchange module 400
Connect, refrigeration unit 210 is connected with heat exchange control valve 420, heat exchange return duct 430, heat-exchange tube 410, passes through refrigerant
The exchange of heat is realized in circulation；The cooling tower 220 is connected by cooling water circulation water pipe 460 with refrigeration unit 210, is empty
Cooling water special tower is adjusted, is cooled down using force ventilation mode.
With cooling down inlet pipe 470, liquid nitrogen control valve 480 and equipment by liquid nitrogen after liquid nitrogen container 230 is in parallel with air-compressor set 240
Low temperature deck of boat test cabinet 150 connect, it is possible to achieve to low temperature deck of boat test cabinet fast cooling and the system of relatively low test temperature
Cold, the volume of the liquid nitrogen container is including but not limited to 20L-21000 cubic metres；Can profit while liquid nitrogen input test room
Compressed air is dried cooling with air dryer 250.The capacity of air compressor 240 is including but not limited to 20L-
160L.Liquid of the air of described compressor compresses after the drying of dried-air drier 250 in gas mixer 260 with vaporization
Nitrogen is mixed.
Above-mentioned heat preservation module is arranged on ice bank and test cabinet surrounding；Described heat preservation module offers several observation windows
170 and hermatic door 310.
Multiple observation windows 170 are provided with heat preservation module 300, the size of observation window is between 100mm~300mm；Wherein,
Insulation material is including but not limited to litaflex, rubber-plastic sponge, polyurethane foam board, phenolic foam heat insulation plate；Thermal conductivity factor
Between 0.01~0.05, fire-protection rating is A grades, and the thickness of the insulation material is between 100mm-400mm.
Hermatic door 310 is provided with the heat preservation module 300 to enter test cabinet 150 for operator, and hermatic door 310 is used
The sealed mode of two storied gate, hermatic door is locked by handwheel bolt 320.It is easy to operator to pass in and out equipped with step 330 before hermatic door.
Above-mentioned heat exchange module is included：Heat-exchange tube 410, heat exchange return duct 430, it passes through heat exchange control respectively
Valve 420 is connected with refrigeration unit 210, and described heat-exchange tube 410 is evenly arranged in test cabinet and ice bank；Several circulated airs
Fan 450, it is arranged on the top of test cabinet 150, for test cabinet inner air flow.Fan blade in circulating fan 450 is being surveyed
Try chamber interior, the motor of circulating fan 450 outside test cabinet 150, motor with it is heat-insulated by heat-insulation layer inside test cabinet.
As shown in figure 3, above-mentioned dragging module 500 is included：If wirerope-winding component 510, several leading block groups,
Dry tensioning wheel group, steel wire rope limited block 560, pulling force sensor 540, the wirerope-winding component 510 include a steel wire rope
535, described steel wire rope 535 is arranged in several leading block groups, several tensioning wheel groups, steel wire rope limited block 560 and drawn
Force snesor 540；Steel wire rope limit switch 550, when described steel wire rope limited block 560 is contacted with steel wire rope limit switch 550,
Described wirerope-winding component 510 is stopped；Tensioning spring 595, described tensioning wheel group is by tensioning spring 595 with setting
Standby framework connection.Described dragging module 500 is installed on device framework 100, is separated with test cabinet 150, works in room temperature ring
Border.Above-mentioned leading block group is the first leading block group 530, the second leading block group 531, and above-mentioned tensioning wheel group is first
Tensioning wheel group 580, the second tensioning wheel group 590.
The wherein described diameter of steel wire rope 535 is between 2mm~20mm, and the steel wire rope 535 is comprising being singly not limited to light
Face steel wire rope, the steel wire rope material including but not limited to high-carbon steel, stainless steel, the high-carbon steel trade mark including but not limited to
60#, 65#, 70#, 75#, 80# steel；The steel wire rope twisted wire mode is including but not limited to double wrap rope or three wirings.
The wherein support frame of the first leading block group 530 is fixed on device framework 100, and leading block can be according to two pulleys
The bending direction of position adjustment steel wire rope 535 between group, assembly pulley roller diameter is suitable with wirerope diameter, it is possible to achieve right
The positioning and guiding function of steel wire rope.
The pulling force sensor 540 is used for measuring drag force of the test piece 571 in moving process, pulling force sensor
540 two ends are connected with steel wire rope 535, the pulling force of steel wire rope 535 are converted into electric signal output to control module 700, pulling force is passed
The rated load of sensor is including but not limited to 5~500Kg, and error is 0.01%~0.05%.
Wherein steel wire rope limit switch 550 and steel wire rope limited block 560 are used for limiting steel wire rope 535 in dragging module 500
Shift position, prevent the ice bank 110 in load-on module 570 and device framework 100 from producing collision, when steel wire rope limit switch
550 with steel wire rope limited block 560 when contacting, and winding motor 512 will be stopped, and then make further responsive to the steel wire
Rope limit switch 550 is Direct Action Type water proof switch；Wherein first, second tension pulley block group（580、590）For keeping steel wire rope
Tensile force.
Referring to Fig. 2, in a particular embodiment, above-mentioned polar region ship plate ultralow temperature frictional experiment system, also comprising one
Load-on module, it is included：Workpiece firm banking 573, it pushes down described test piece 571；A pair of deflectors 577, it is installed
In the both sides of workpiece firm banking 573, the frictional direction of the described test piece 571 of guiding；It is vertically arranged in workpiece and fixes bottom
Counterweight guide rod 575 on seat 573, for loading counterweight 576；Steel wire rope fixed seat 574, itself and the phase of workpiece firm banking 573
Connect and fixed steel wire rope；Pull described steel wire rope 535 so that workpiece firm banking, which is pulled, to be moved back and forth.
Wherein test piece 571 is for the low-temperature steel plate peculiar to vessel tested or the ship model processed according to test request
Or other test pieces, test piece（Test ship plate）571 are bolted with workpiece firm banking 573；Wherein,
Workpiece firm banking 573 can do reciprocal under the tractive force effect of steel wire rope 535 after each part is integrally connected in ice face
Mobile, the tractive force and translational speed that 700 pairs of control module is moved back and forth are recorded；Wherein wire rope fixed base 574 with
Workpiece firm banking 573, steel wire rope 535 are connected, it is possible to achieve fixation to steel wire rope simultaneously drags workpiece and moved back and forth；Wherein weight
Code 576 realizes the pressure-loaded for workpiece, and counterweight weight is between 0.1Kg~50Kg, and counterweight can be according to experiment needs
Loading and unloading, counterweight are fixed by counterweight guide rod 575；In order to ensure being normally carried out for friction test, bottom is fixed in workpiece
The both sides of seat, which are provided with deflector 577, can guide frictional direction of the test piece 571 in ice face.
Referring to Fig. 4, above-mentioned wirerope-winding component 510 is included：Base 519 is wound, it is provided with guide rail 528；Winding disc
Sliding seat 529, it is arranged on guide rail 528；It is arranged on the winding disc 511 on winding disc sliding seat 529, its one end and steel wire rope
Rotary shaft 517 is connected, and the other end is connected through torque sensor 514, shaft coupling 513 with winding motor 512；First synchronous pulley
515, it is connected with wire rope rotating axle；Second synchronous pulley 520, screw mandrel 521, the second described synchronous pulley 520 and first
Synchronous pulley 515 mutually links, and is connected with screw mandrel 521, and described screw mandrel 521 is arranged at winding base 519.
Wind base and be provided with first, second and third travel switch（525-1、525-2、525-3）；Described winding disc sliding seat
Provided with first and second limiting plate（524、526）；The described screw mandrel of rotation so that described screw mandrel drives winding disc sliding seat leading
Moved on rail, when the first described limiting plate 524 is contacted with the first travel switch 525-1, wind motor stalls and open
Begin reversion, when the second limiting plate 526 and third trip switch 525-3 contact when, winding motor stalls start rotating forward.
Wherein rope winding base 519 is provided with guide rail 528, is available for winding disc sliding seat 529 back and forth to be moved on guide rail 528
It is dynamic；Wirerope-winding disk 511, winds motor 512, shaft coupling 513, torque sensor 514, the first synchronous pulley 515, the first limit
Position plate 524, the second limiting plate 526, bearing block 523 is connected with winding plate sliding seat 529；Second synchronous pulley 520 and screw mandrel 521
Connection；First synchronous pulley 515 and the second synchronous pulley 520 to diameter ratio including but not limited to 2:1~30:1.
The wherein a diameter of 0.4m~1m of wirerope-winding disk 511, length is to add on 0.6m-1.2m wirerope-windings disk 511
Work is fluted, and groove diameter matches with the diameter of steel wire rope 535, in that context it may be convenient to lay winding wire ropes 535, wirerope-winding disk 511
It is connected with wire rope rotating axle 517, through torque sensor 514, shaft coupling 513 is connected with winding motor 512.Wherein torque sensing
Device 514 can monitor the output torque of winding motor 512, and torque signal is transferred into control module 700；The winding motor
512 be stepper motor, and the startup of controlled motor can be required according to control system, is stopped, the parameter such as rotary speed；The rotation
The power of motor 512 is including but not limited to 1KW~10KW；
Wherein screw mandrel（520）Pitch and steel wire rope（535）Diameter proportion is including but not limited to 1.5:1~3：1.First limit
The position of the position limiting plate 526 of plate 525 and second can be adjusted, by the position for controlling the first limiting plate 525 and the second limiting plate 526
Put the displacement that can adjust ballast module and position.
Rubbed present invention also offers the low temperature using polar region ship plate ultralow temperature frictional experiment system testing ship plate
The technique for wiping performance, the technique operates with above-mentioned polar region ship plate ultralow temperature frictional experiment service system, concrete technology
It is as follows：
Step 1：Start the power supply of control module 700, opening program control module；
Step 2：Seawater is configured according to test requirements document, ice bank intake-discharge pipe control valve is opened and seawater is injected into ice bank, it is desirable to do not surpass
Cross 2/3 depth of ice bank.
Step 3：Start refrigeration module 200, open heat exchange control valve 420, start refrigeration compressor set 210, cooling water
Tower 220, circulating fan 450 allows cold-producing medium stream through heat-exchange tube 410 to the seawater system in test cabinet 150 and ice bank 110
It is cold, fast-refrigerating is such as needed, liquid nitrogen control valve 480 can be opened, air bleeding valve 160 is opened, starts air-compressor set 240, air-compressor set is allowed
In air mixed after dried-air drier 250 in gas mixer 260 with liquid nitrogen, allow the nitrogen and compressed air of vaporization
Enter the test space by liquid nitrogen cooling tube 470, temperature in the test space is dropped to subzero less than 10 degrees Celsius, close liquid nitrogen control
Valve 480 processed.
Step 4：When temperature is reached after subzero 10 degrees Celsius, the first stroke in adjustment wirerope-winding component 510 is opened
The position with the second travel switch is closed, makes the shift motion of load-on module 570 consistent with test requirements document stroke.
Step 5：The rotating speed that input test needs in control module 700, short circuit connects the steel wire rope of load-on module 570,
Control module starts the winding motor 512 pulled in module 500, steel wire rope 535 is moved back and forth according to program setting.
Step 6：Rotary handle nut 320, opens hermatic door 310, test piece 571 is fixed on into workpiece firm banking
On 573, and steel wire rope 535 is connected with load-on module 570, loaded the counterweight 576 of respective loads according to test program requirement
Onto counterweight guide rod 575, locking nut is tightened, hermatic door is closed.
Step 7：Liquid nitrogen control valve 480 is opened, liquid nitrogen control valve 480 is opened, air bleeding valve 160 is opened, starts air compressor machine
Group 240, the air allowed in air compressor machine is mixed after dried-air drier 250 in gas mixer 260 with liquid nitrogen, allows vaporization
Nitrogen and compressed air enter the test space by liquid nitrogen cooling tube 470, temperature in the test space is dropped to design temperature（-60
More than degree Celsius）,
Step 8：Control module 700 is zeroed using the pulling force sensor in measurement and monitoring module 600, torque sensor
Operation.
Step 9：It is that program requires speed by the speed setting of electric rotating machine 512, according to the program setting time to polar ship
Ultralow temperature reciprocating friction experiment is carried out with steel plate 571, in test process, control program 700 utilizes measurement and monitoring module 600
In temperature sensor 180, velocity sensor, pulling force sensor 540, torque sensor 514 etc. record related data.
Step 10：After the completion of experiment, related valve is closed, stops refrigeration unit 210, air-compressor set 240, rotary handle spiral shell
Mother 320, opens hermatic door 310, pulls down arctic navigation ship plate 571, carries out coherent detection.
In summary, a kind of polar region ship plate ultralow temperature frictional experiment system of the invention being capable of analogous pole in the lab
There is provided the rings such as different temperature, load, speed, humidity under ultra-low temperature surroundings for ground navigating ship model or ice breaker steel plate
Border, the fretting wear between the test deck of boat and ice face, low temperature impact properties, the friction between shiplines and ice cube such as is deteriorated at the property
Energy.Although present disclosure is discussed in detail by above preferred embodiment, but it should be appreciated that the description above
It is not considered as limitation of the present invention.After those skilled in the art have read the above, for a variety of of the present invention
Modifications and substitutions all will be apparent.Therefore, protection scope of the present invention should be limited to the appended claims.
Claims (9)
1. a kind of polar region ship plate ultralow temperature frictional experiment system, it is characterised in that include：
Device framework, it is provided with a test cabinet；
It is connected and fixed on refrigeration module in device framework, heat preservation module, heat exchange module, pulls module；
Described refrigeration module is used to need Control experiment room temperature according to experimental enviroment；
Described heat preservation module is used to isolate test cabinet with exterior space；
Described heat exchange module realizes the heat exchange between test cabinet and refrigeration module using the flowing of refrigerant；
Described dragging module towing test piece, moves back and forth test piece.
2. polar region ship plate ultralow temperature frictional experiment system as claimed in claim 1, it is characterised in that described test cabinet
Inside it is provided with an ice bank；
Described refrigeration module is included：
Refrigeration unit, it is connected with heat exchange module；
Cooling tower, it is connected by cooling water circulation water pipe with refrigeration unit；
Liquid nitrogen container, air-compressor set, connection enters test cabinet after its parallel connection.
3. polar region ship plate ultralow temperature frictional experiment system as claimed in claim 2, it is characterised in that described insulation mould
Block is arranged on ice bank and test cabinet surrounding；Described heat preservation module offers several observation windows and hermatic door.
4. polar region ship plate ultralow temperature frictional experiment system as claimed in claim 2, it is characterised in that described heat exchange
Module is included：
Heat-exchange tube, heat exchange return duct, it is connected by heat exchange control valve with refrigeration unit respectively, described heat-exchange tube
It is evenly arranged in test cabinet and ice bank；
Several circulating fans, it is arranged at the top of test cabinet, for test cabinet inner air flow.
5. polar region ship plate ultralow temperature frictional experiment system as claimed in claim 1, it is characterised in that described dragging mould
Block is included：
Wirerope-winding component, several leading block groups, several tensioning wheel groups, steel wire rope limited block, pulling force sensor, institute
State wirerope-winding component and include a steel wire rope, described steel wire rope is arranged in several leading block groups, several tensioning wheels
Group, steel wire rope limited block and pulling force sensor；
Steel wire rope limit switch, when described steel wire rope limited block is contacted with steel wire rope limit switch, described wirerope-winding
Component is stopped；
Tensioning spring, described tensioning wheel group is connected by tensioning spring with device framework.
6. polar region ship plate ultralow temperature frictional experiment system as claimed in claim 5, it is characterised in that also comprising a loading
Module, it is included：
Workpiece firm banking, it pushes down described test piece；
A pair of deflectors, it is arranged on the both sides of workpiece firm banking, the frictional direction of the described test piece of guiding；
The counterweight guide rod on workpiece firm banking is vertically arranged in, for loading counterweight；
Steel wire rope fixed seat, it is connected and fixed steel wire rope with workpiece firm banking；
Pull described steel wire rope so that workpiece firm banking, which is pulled, to be moved back and forth.
7. polar region ship plate ultralow temperature frictional experiment system as claimed in claim 5, it is characterised in that described steel wire rope
Winding element is included：
Base is wound, it is provided with guide rail；
Winding disc sliding seat, it is arranged on guide rail；
Be arranged on the winding disc on winding disc sliding seat, its one end is connected with wire rope rotating axle, the other end through torque sensor,
Shaft coupling is connected with winding motor；
First synchronous pulley, it is connected with wire rope rotating axle；
Second synchronous pulley, screw mandrel, the second described synchronous pulley mutually link with the first synchronous pulley, and are connected with screw mandrel,
Described screw mandrel is arranged at winding base.
8. polar region ship plate ultralow temperature frictional experiment system as claimed in claim 7, it is characterised in that described winding bottom
Seat is provided with first, second and third travel switch；
Described winding disc sliding seat is provided with first and second limiting plate；
The described screw mandrel of rotation so that described screw mandrel drives winding disc sliding seat to be moved on guide rail, when the first described limit
When position plate and the first stroke switch contact, wind motor stalls and start reversion, when the second limiting plate is opened with the second stroke
When closing contact, winding motor stalls start to rotate forward.
9. the polar region ship plate ultralow temperature frictional experiment system as described in claim any one of 1-8, it is characterised in that also wrap
Contain：
Monitoring module is measured, for measuring the temperature in process of the test, pressure, speed, acceleration parameter；
Control module, startup and stopping for control system.
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| CN112014103A (en) * | 2020-07-29 | 2020-12-01 | 武汉理工大学 | Shafting test device suitable for ice region navigation boats and ships |
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Application publication date: 20170915 |