CN108444870A - A kind of soil apparatus for measuring contact angle - Google Patents
A kind of soil apparatus for measuring contact angle Download PDFInfo
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- CN108444870A CN108444870A CN201810640871.8A CN201810640871A CN108444870A CN 108444870 A CN108444870 A CN 108444870A CN 201810640871 A CN201810640871 A CN 201810640871A CN 108444870 A CN108444870 A CN 108444870A
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- sink
- earth pillar
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- 239000002689 soil Substances 0.000 title claims abstract description 39
- 238000012360 testing method Methods 0.000 claims abstract description 58
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 56
- 230000007246 mechanism Effects 0.000 claims abstract description 52
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 46
- 238000002474 experimental method Methods 0.000 claims abstract description 42
- 239000007788 liquid Substances 0.000 claims abstract description 26
- 239000011521 glass Substances 0.000 claims description 20
- 230000003028 elevating effect Effects 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 claims description 9
- 238000009736 wetting Methods 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 4
- 230000003020 moisturizing effect Effects 0.000 claims description 4
- 238000010521 absorption reaction Methods 0.000 claims description 3
- 238000013383 initial experiment Methods 0.000 claims description 3
- 241000237858 Gastropoda Species 0.000 claims 1
- 230000002459 sustained effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 11
- 238000010586 diagram Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 5
- 239000007787 solid Substances 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- TVMXDCGIABBOFY-UHFFFAOYSA-N octane Chemical compound CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 3
- 230000003628 erosive effect Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000005012 migration Effects 0.000 description 2
- 238000013508 migration Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000001476 alcoholic effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000012085 test solution Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N13/00—Investigating surface or boundary effects, e.g. wetting power; Investigating diffusion effects; Analysing materials by determining surface, boundary, or diffusion effects
Abstract
A kind of soil apparatus for measuring contact angle, wherein water supply mechanism supplies water for realizing real-time, is stablized with head during guarantee test；Bottom of gullet is provided with pedestal, the pedestal upper bracket and pedestal undersetting for adjusting sink horizontal plane smoothness are provided on pedestal, it is connected with the external screw thread of pedestal undersetting using the internal thread of pedestal upper bracket and rotates adjustment base height, so that the air level in sink center is placed in the middle, to ensure liquid surface in sustained height, sink center is provided with the strainer for accepting experiment earth pillar, earth pillar upper end is tested when experiment to fix by earth pillar fixing device, lower end is in contact with strainer, and sieve meshes are permeable to be come into full contact with guarantee test earth pillar with liquid；It is provided with two pieces of test tube fixed cross beams in earth pillar fixed mechanism, and two pieces of test tube fixed cross beams are in reversed arrangement, are suitable for the experiment earth pillar of different-diameter, the capillary water height of multiple and different experiment earth pillars can be measured simultaneously, the effectively save time improves working efficiency.
Description
Technical field
The present invention relates to field of measuring technique more particularly to a kind of soil apparatus for measuring contact angle.
Background technology
Soil water repellency refers to the physical phenomenon that moisture cannot or be difficult moist soil particle surface, the presence of repellency
Soil is set easily to form water erosion or wind erosion, to cause serious environmental problem.And it commonly uses and drips when being measured to soil water repellency
Time of break-through method and alcoholic solution infiltrate method, although both methods can characterize to simple, intuitive the intensity of soil water repellency,
But be not suitable for theoretical modeling research, it is generally hydrophobic to characterize soil with water-liquid/solid interface contact angle θ in theoretical analog study
Intensity, the method that soil contact angular dimensions is measured when experiment generally use hollow billet rise method, and when θ=0 °, soil is wettability
Soil；0°<θ<Soil is subcritical property repellency at 90 °；θ>It is repellency soil at 90 °；To solve the above problems, one need to be developed
Kind can accurately, carry out soil contact angle determination in bulk, and save the time, improve working efficiency device.
Invention content
Technical problem solved by the invention is to provide a kind of soil apparatus for measuring contact angle, to solve above-mentioned background skill
Disadvantage in art.
Technical problem solved by the invention is realized using following technical scheme：
A kind of soil apparatus for measuring contact angle, including elevating mechanism, water supply mechanism, pedestal, sink, babinet, organic glass
Column, earth pillar fixed mechanism and high-definition camera, wherein elevating mechanism is arranged below water supply mechanism, and water supply mechanism passes through pipeline
It stretches into sink, and flow control valve is installed in water supply mechanism water outlet, for controlling flow flowing, realize real-time moisturizing work(
Energy；Liquid level sensor is installed, and water supply mechanism Bottom Altitude should be higher than that liquid level sensor cope level in sink, to realize water
Stream gravity flow when experiment, passes through liquid level sensor and detects water level in sink；Bottom of gullet is equipped with the bottom for leveling sink
Seat, sink center are equipped with the strainer for accepting experiment earth pillar, and earth pillar bottom is tested when experiment and is contacted with strainer, to ensure
There is experiment earth pillar bottom to be in same elevation, while the filter opening of strainer permeable does not influence earth pillar water absorption course；It sink top can be certainly
There are babinet, six face hollow out of babinet, babinet top to be connected with the earth pillar fixed mechanism for fixing Organic glass column by dismantling connection,
Earth pillar fixed mechanism can be freely disassembled with babinet and connect, and experiment earth pillar is placed in Organic glass column；And positioned at cabinet wall phase
To Organic glass column front and rear sides opposite side, respectively there are one high-definition cameras for installation, and liquid level sensor, flow control valve and high definition are taken the photograph
Camera is connect with the operating terminal for being arranged in water supply mechanism side respectively, the water level number that operating terminal is acquired according to liquid level sensor
It discharges water to compensate according to control flow control valve and be lost caused by experiment earth pillar water suction, until water level restores to initial experiment state,
It closes flow control valve and stops moisturizing；And connect always with power supply when high-definition camera experiment, it avoids influencing to try because of not enough power supply
The typing for testing data, after on-test, data terminal controls high-definition camera and opens recording function, and soil during experiment is wet
Moisten cutting edge of a knife or a sword migration process whole process record, to obtain wetting front lifting height and time；
In elevating mechanism, riser guide is made of conduit that can be with axial sliding clearance with guide rod, guide rod top with rise
Drop upper pallet is fixedly connected, and conduit lower part is fixedly connected with lifting lower plate；Lifting screw upper end is fixed with lifting upper pallet to be connected
It connects, and lifting screw coordinates drive connection, lifting nut to be mounted in lifting base with lifting nut by internal and external screw, lifting
Pedestal lower end is fixedly connected with lifting lower plate, and lifting screw, lifting base, lifting nut three's centre of gyration overlap, and
There is a worm gear lifting nut periphery is circumferentially arranged, lifting base side is provided with the worm screw with worm gear engaged transmission, for driving
The lifting driving motor of dynamic worm screw is arranged in lifting base side；It lifts driving motor forward drive worm screw and drives worm gear rotation,
Worm gear drives lifting nut to rotate in the forward direction driving lifting screw uplink, and lifting screw pushes lifting upper pallet uplink, to will be for
Water dispenser structure rises；Lifting driving motor reverse drive worm screw drives worm gear rotation, worm gear that lifting nut is driven to reversely rotate driving
Lifting screw downlink, lifting screw drives lifting upper pallet downlink, to reduce water supply mechanism.
In the present invention, the air level for observing sink horizontal plane smoothness is installed in sink.
In the present invention, pedestal includes pedestal upper bracket, pedestal undersetting and jam nut, the setting of pedestal upper bracket upper end
It is useful for the sucker sucked with sink bottom plate, pedestal upper bracket lower end is internally provided with internal thread, the setting of pedestal undersetting lower end
It is useful for the sucker sucked with experimental bench, pedestal undersetting upper end is provided with external screw thread, the internal thread and pedestal of pedestal upper bracket
The external screw thread of undersetting is connected rotation to adjust the level of sink, and external screw thread is mounted on for spelling tight jam nut.
In the present invention, sink side is provided with drainpipe, is equipped with normally closed solenoid valve on drainpipe, normally closed solenoid valve with
Operating terminal connects, and when off-test, sends a signal to normally closed solenoid valve by operating terminal and opens directly draining, and then realize
The automation of substantial length of operation.
In the present invention, sink is connect with babinet by bolt, and is arranged on the pin hole and babinet being arranged on flume wall
Pin hole alignment, fixed by bolt, to prevent babinet from sliding under external force.
In the present invention, it is provided with outside lifting screw for being carried out with the transmission inside spin structure being arranged in lifting nut
The transmission external spiral structure that threaded engagement is sequentially connected.
In the present invention, Organic glass column includes test tube cylinder and test tube scale, and test tube cylinder side is provided with test tube
Scale, the height for reading soil wetting front rising.
In the present invention, earth pillar fixed mechanism includes that multiple test tube clamps, two pieces of test tube fixed cross beams and setting are solid in test tube
Determine the crossbeam mounting hole at crossbeam both ends, earth pillar fixed mechanism is mounted on by crossbeam mounting hole on babinet, for fixing organic glass
The test tube clamp of glass column is axially uniformly arranged along test tube fixed cross beam, and two pieces of test tube fixed cross beams are in reversed arrangement, to save sky
Between, and the test tube clamp interlaced arrangement on two pieces of test tube fixed cross beams, to avoid influencing each other between experiment earth pillar during experiment.
In the present invention, lifting nut upper end is mounted on by lifting nut upper bearing (metal) in lifting base, under lifting nut
End is mounted on by lifting nut lower bearing in lifting base.
In the present invention, lifting nut lower end is provided with the locking nut for carrying out fastening limit.
Advantageous effect：
1) present invention is provided with water supply mechanism and supplies water for realizing real-time, is stablized with head during guarantee test, realizes
Experiment accurately controls；
2) present invention is provided with pedestal in bottom of gullet, and the bottom for adjusting sink horizontal plane smoothness is provided on pedestal
Seat upper bracket and pedestal undersetting are connected to rotate and adjust using the internal thread of pedestal upper bracket with the external screw thread of pedestal undersetting
Save substructure height so that the air level in sink center is placed in the middle, and to ensure liquid surface in sustained height, the setting of sink center is useful
Experiment earth pillar upper end is fixed by earth pillar fixing device when the strainer for accepting experiment earth pillar, experiment, and lower end is in contact with strainer,
Sieve meshes are permeable to be come into full contact with guarantee test earth pillar with liquid；
3) two pieces of test tube fixed cross beams are provided in earth pillar fixed mechanism of the invention, and two pieces of test tube fixed cross beams are in anti-
To arrangement, it is suitable for the experiment earth pillar of different-diameter, the capillary water height of multiple and different experiment earth pillars can be measured simultaneously, had
Effect saves the time, improves working efficiency；
4) six face hollow out of babinet of the invention, convenient for observation experiment earth pillar wetting front transport conditions；
5) each section is independent in the present invention, can in-site installation dismounting, it is easy to use.
Description of the drawings
Fig. 1 is the structural schematic diagram of presently preferred embodiments of the present invention.
Fig. 2 is schematic diagram under the experimental state of presently preferred embodiments of the present invention.
Fig. 3 is sink and schematic diagram of base structure in presently preferred embodiments of the present invention.
Fig. 4 is the box structure diagram in presently preferred embodiments of the present invention.
Fig. 5 is the elevating mechanism structural schematic diagram in presently preferred embodiments of the present invention.
Fig. 6 is the Organic glass column structural schematic diagram in presently preferred embodiments of the present invention.
Fig. 7 is the schematic diagram of base structure in presently preferred embodiments of the present invention.
Fig. 8 is the earth pillar fixed mechanism structural schematic diagram in presently preferred embodiments of the present invention.
Specific implementation mode
In order to make the technical means, the creative features, the aims and the efficiencies achieved by the present invention be easy to understand, tie below
Conjunction is specifically illustrating, and the present invention is further explained.
Referring to a kind of soil apparatus for measuring contact angle of Fig. 1~Fig. 8, including elevating mechanism 1, water supply mechanism 2, flow control
Valve 3, pedestal 4, sink 5, liquid level sensor 6, strainer 7, air level 8, normally closed solenoid valve 9, babinet 10, Organic glass column 11, soil
Column fixed mechanism 12 and high-definition camera 13, wherein elevating mechanism 1 is arranged below water supply mechanism 2, and water supply mechanism 2 passes through pipe
Road stretches into sink 5, and is equipped with flow control valve 3 in 2 water outlet of water supply mechanism, for controlling flow flowing, realizes real-time
Water supplement function；Liquid level sensor 6 and air level 8 are installed, and 2 Bottom Altitude of water supply mechanism should be higher than that level sensing in sink 5
6 cope level of device when experiment, passes through liquid level sensor 6 and detects water level in sink 5 to realize that flow is flow automatically；Liquid level sensor
6 and flow control valve 3 connect respectively with the operating terminal for being arranged in 2 side of water supply mechanism, operating terminal is according to liquid level sensor 6
Acquisition waterlevel data control flow control valve 3 discharge water compensation because experiment earth pillar water suction caused by be lost, until water level restore to
Initial experiment state closes flow control valve 3 and stops moisturizing；The quadrangle of sink 5 is equipped with the pedestal 4 for leveling sink 5, examination
First by 4 leveling sink 5 of pedestal when testing, 5 horizontal plane smoothness of sink is observed by air level 8, then adjust elevating mechanism 1 with
The height of water supply mechanism 2 is steady with liquid level during guarantee test；5 center of sink is equipped with strainer 7, and the effect of strainer 7 is to use
Experiment earth pillar bottom is contacted with strainer 7 when undertaking experiment earth pillar, experiment, to ensure that all experiment earth pillar bottoms are in same height
Journey, while the filter opening of strainer 7 permeable does not influence earth pillar water absorption course；5 left side of sink is provided with drainpipe, is equipped on drainpipe
Normally closed solenoid valve 9 sends a signal to normally closed solenoid valve 9 by operating terminal and opens direct draining, and then realize when off-test
The automation of substantial length of operation；5 top of sink is connected with babinet 10, and sink 5 can be freely disassembled with babinet 10, be connected by bolt,
By after 5 leveling of sink when experiment, babinet 10 is placed on 5 top of sink, and the pin hole on 5 wall of sink and inserting on babinet 10
Pin hole is aligned, and is fixed by bolt, to prevent babinet 10 from sliding under external force；10 6 face hollow out of babinet, top connect
It is connected to the earth pillar fixed mechanism 12 for fixing Organic glass column 11, earth pillar fixed mechanism 12 is preferentially solid using bolt with babinet 10
Fixed, easy to disassemble, experiment earth pillar is placed in Organic glass column 11；Positioned at 10 inner wall of babinet with respect to 11 front and rear sides of Organic glass column
Respectively there are one high-definition cameras 13 for installation for opposite side, and high-definition camera 13 is connect with power supply always when testing, to avoid because of electricity
Deficiency influences the typing of test data, and after on-test, data terminal controls high-definition camera 13 and opens recording function, will test
Soil wetting front migration process whole process records in the process, and is connect with host computer by data line, and video recording number is read by host computer
According to data, to obtain wetting front lifting height and time.
In the present embodiment, elevating mechanism 1 includes lifting upper pallet 1-1, lifting nut upper bearing (metal) 1-2, lifting screw 1-
3, under lifting base 1-4, riser guide 1-5, lifting driving motor 1-6, locking nut 1-7, lifting nut 1-8, lifting nut
Bearing 1-9, lower plate 1-10 is lifted, riser guide 1-5 is made of conduit and guide rod, and guide rod top and lifting upper pallet 1-1 are solid
Fixed connection, conduit lower part are fixedly connected with lifting lower plate 1-10, conduit and guide rod can axial sliding clearance coordinate, in lifting
Supporting plate 1-1 plays the role of limition orientation；The upper ends lifting screw 1-3 are fixedly connected with lifting upper pallet 1-1, and lifting screw 1-3
Outside is provided with transmission external spiral structure, and the lower ends lifting base 1-4 are fixedly connected with lifting lower plate 1-10, lifting nut 1-8
Upper end is installed on by lifting nut upper bearing (metal) 1-2 in lifting base 1-4, and the lower ends lifting nut 1-8 pass through lifting nut lower axle
It holds 1-9 to be installed in lifting base 1-4, and the lower ends lifting nut 1-8 pass through locking nut 1-7 fastening limits, lifting screw 1-
3, lifting base 1-4, lifting nut 1-8 three's centre of gyration overlap, and transmission inside spin structure is provided in lifting nut 1-8,
Lifting screw 1-3 and lifting nut 1-8 is coordinated by internal and external screw to be driven, and the peripheries lifting nut 1-8 are circumferentially arranged worm gear,
The sides lifting base 1-4 are provided with worm screw, worm and wheel engaged transmission, and lifting driving motor 1-6 is set to lifting base 1-4
Side drives worm screw；Lifting driving motor 1-6 forward drive worm screws drives worm gear rotation, worm gear to drive lifting nut 1-8 positive
Rotation driving lifting screw 1-3 uplinks, lifting screw 1-3 push lifting upper pallet 1-1 uplinks；It is reversed to lift driving motor 1-6
Worm screw is driven to drive worm gear rotation, worm gear that lifting nut 1-8 is driven to reversely rotate driving lifting screw 1-3 downlinks, lifting screw
1-3 drives lifting upper pallet 1-1 downlinks.
In the present embodiment, pedestal 4 includes pedestal upper bracket 4-1, pedestal undersetting 4-2 and jam nut 4-3, on pedestal
The upper ends bearing 4-1 are provided with sucker, and the lower ends pedestal upper bracket 4-1 are internally provided with internal thread, the setting of the lower ends pedestal undersetting 4-2
There is a sucker, the upper ends pedestal undersetting 4-2 are provided with external screw thread, and the internal thread of pedestal upper bracket 4-1 is outer with pedestal undersetting 4-2's
Screw-thread fit rotation is spelled tightly after adjustment level by the jam nut 4-3 being set on external screw thread with adjusting the level of sink 5,
Terminal sucker with 5 bottom plate of sink for sucking on pedestal upper bracket 4-1, and terminal sucker with experimental bench for sucking under 4-2.
In the present embodiment, Organic glass column includes test tube cylinder 11-1 and test tube scale 11-2, in test tube cylinder 11-1
Side is provided with test tube scale 11-2, the height for reading soil wetting front rising.
In the present embodiment, earth pillar fixed mechanism 12 include multiple test tube clamp 12-1, two pieces of test tube fixed cross beam 12-2 and
Crossbeam mounting hole 12-3 at the both ends test tube fixed cross beam 12-2 is set, and earth pillar fixed mechanism 12 is pacified by crossbeam mounting hole 12-3
Loaded on babinet 10, the test tube clamp 12-1 for fixing Organic glass column 11 is axially uniformly arranged along test tube fixed cross beam 12-2,
And test tube clamp 12-1 movable rotations on test tube fixed cross beam 12-2；Two pieces of test tube fixed cross beam 12-2 are in reversed arrangement, with
Space, and the test tube clamp 12-1 interlaced arrangements on two pieces of test tube fixed cross beam 12-2 are saved, to avoid soil is tested during experiment
It influences each other between column.
In the present embodiment, the contact angle θ of liquid-Soil Interface is calculated using improved Washburn formula：
Improved Washburn formula are as follows
In formula (1), h is lifting height (cm) of the liquid wetting front in testing earth pillar；L is that experiment earth pillar lower submerged exists
Depth (cm) in liquid；R is uniform hole effective radius (μm), indicates the Utopian pore system of granular material；γ1
For the surface tension (J/m of liquid2)；η is the viscosity (Pas) of liquid；T is the time (s)；
γ1It can be checked in Chemical manual with η, the density of water, absolute ethyl alcohol and normal octane at 20 DEG C is 0.99gcm-3、0.79g·cm-3And 0.70gcm-3, surface tension is respectively 72.8Jm-2、22.4J·m-2And 21.6mJm-2, viscosity
Respectively 1.00Pas, 1.19Pas and 0.54Pas, while absolute ethyl alcohol and normal octane are a kind of liquid moistened completely
Body, it is generally recognized that contact angle θ=0 °, i.e. θ=1 cos；Reference fluid is selected as in this experiment, for acquiring the r in formula (1)
R is substituted into the formula (1) when water is test solution, to be found out respectively using two kinds of reference liquids of absolute ethyl alcohol and normal octane by the factor
The contact angle θ of water-soil interface when body；
By improved Washburn formula can accurate, batch, clear, visual test repellency soil contact angle,
To observe the changing rule of wetting front in repellency soil, be suitable for different-diameter experiment earth pillar, can measure simultaneously it is multiple not
With the capillary water height of experiment earth pillar, the effectively save time improves working efficiency.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (10)
1. a kind of soil apparatus for measuring contact angle, including elevating mechanism, water supply mechanism, pedestal, sink, babinet, Organic glass column,
Earth pillar fixed mechanism and high-definition camera, which is characterized in that elevating mechanism is arranged below water supply mechanism, and water supply mechanism passes through pipe
Road stretches into sink, and is equipped with the flow control valve for controlling flow flowing in water supply mechanism water outlet；Installation in sink
There is liquid level sensor, and water supply mechanism Bottom Altitude is higher than liquid level sensor cope level；Bottom of gullet is equipped with for leveling
The pedestal of sink, sink center are equipped with the strainer for accepting experiment earth pillar, and experiment earth pillar bottom is contacted with strainer when experiment,
To ensure that all experiment earth pillar bottoms are in same elevation, while the filter opening of strainer permeable does not influence earth pillar water absorption course；Sink
Top, which can be freely disassembled, is connected with babinet, and six face hollow out of babinet, babinet top is connected with the earth pillar for fixing Organic glass column
Fixed mechanism, earth pillar fixed mechanism can be freely disassembled with babinet and connect, and experiment earth pillar is placed in Organic glass column；Positioned at babinet
Inner wall with respect to Organic glass column front and rear sides opposite side respectively installation there are one high-definition camera, liquid level sensor, flow control valve and
High-definition camera is connect with the operating terminal for being arranged in water supply mechanism side respectively, and operating terminal is acquired according to liquid level sensor
Waterlevel data control flow control valve discharges water to compensate and is lost caused by experiment earth pillar water suction, until water level restores to initial experiment
State closes flow control valve and stops moisturizing；And connect always with power supply when high-definition camera experiment, it avoids because of not enough power supply shadow
The typing for ringing test data, after on-test, data terminal controls high-definition camera and opens recording function, to obtain on wetting front
Rise and time；
In elevating mechanism, riser guide is made of conduit that can be with axial sliding clearance with guide rod, guide rod top in lifting
Supporting plate is fixedly connected, and conduit lower part is fixedly connected with lifting lower plate；Lifting screw upper end is fixedly connected with lifting upper pallet, and
Lifting screw, which is coordinated with lifting nut by internal and external screw, to be sequentially connected, and lifting nut is mounted in lifting base, lifting base
Lower end is fixedly connected with lifting lower plate, and lifting screw, lifting base, lifting nut three's centre of gyration overlap, and is being risen
Drop nut periphery is circumferentially arranged worm gear, and lifting base side is provided with the worm screw with worm gear engaged transmission, for driving snail
The lifting driving motor of bar is arranged in lifting base side；It lifts driving motor forward drive worm screw and drives worm gear rotation, worm gear
Lifting nut is driven to rotate in the forward direction driving lifting screw uplink, lifting screw pushes lifting upper pallet uplink, thus by water supplying machine
Structure rises；Lifting driving motor reverse drive worm screw drives worm gear rotation, worm gear that lifting nut is driven to reversely rotate driving lifting
Screw rod downlink, lifting screw drives lifting upper pallet downlink, to reduce water supply mechanism.
2. a kind of soil apparatus for measuring contact angle according to claim 1, which is characterized in that be equipped in sink for seeing
Survey the air level of sink horizontal plane smoothness.
3. a kind of soil apparatus for measuring contact angle according to claim 1, which is characterized in that pedestal includes being propped up on pedestal
Seat, pedestal undersetting and jam nut, pedestal upper bracket upper end are provided with the sucker for being sucked with sink bottom plate, are propped up on pedestal
Seat lower end is internally provided with internal thread, and pedestal undersetting lower end is provided with the sucker for being sucked with experimental bench, pedestal undersetting
Upper end is provided with external screw thread, and the internal thread of pedestal upper bracket is connected rotation to adjust sink with the external screw thread of pedestal undersetting
Level, for spell tight jam nut be mounted on external screw thread.
4. a kind of soil apparatus for measuring contact angle according to claim 1, which is characterized in that sink side is provided with draining
It manages, normally closed solenoid valve is installed on drainpipe, normally closed solenoid valve is connect with operating terminal.
5. a kind of soil apparatus for measuring contact angle according to claim 1, which is characterized in that sink passes through bolt with babinet
Connection, and the pin hole being arranged on flume wall is aligned with the pin hole being arranged on babinet.
6. a kind of soil apparatus for measuring contact angle according to claim 1, which is characterized in that be provided with outside lifting screw
Transmission external spiral structure for carrying out threaded engagement drive connection with the transmission inside spin structure being arranged in lifting nut.
7. a kind of soil apparatus for measuring contact angle according to claim 1, which is characterized in that Organic glass column includes test tube
Cylinder and test tube scale, test tube scale is provided in test tube cylinder side.
8. a kind of soil apparatus for measuring contact angle according to claim 1, which is characterized in that earth pillar fixed mechanism includes more
A test tube clamp, two pieces of test tube fixed cross beams and crossbeam mounting hole at test tube fixed cross beam both ends is set, earth pillar fixed mechanism is logical
Crossbeam mounting hole is crossed on babinet, the test tube clamp for fixing Organic glass column is axially laid along test tube fixed cross beam
It sets, and two pieces of test tube fixed cross beams are in reversed arrangement.
9. a kind of soil apparatus for measuring contact angle according to claim 1, which is characterized in that lifting nut upper end passes through liter
It drops nut upper bearing (metal) to be mounted in lifting base, lifting nut lower end is mounted on by lifting nut lower bearing in lifting base.
10. a kind of soil apparatus for measuring contact angle according to claim 1, which is characterized in that lifting nut lower end is arranged
It is useful for carrying out the locking nut of fastening limit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810640871.8A CN108444870A (en) | 2018-06-21 | 2018-06-21 | A kind of soil apparatus for measuring contact angle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810640871.8A CN108444870A (en) | 2018-06-21 | 2018-06-21 | A kind of soil apparatus for measuring contact angle |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109669073A (en) * | 2018-12-12 | 2019-04-23 | 浙江大学 | A kind of adaptive soil conductivity detection device |
| CN112834397A (en) * | 2020-12-30 | 2021-05-25 | 西安科技大学 | Soil capillary test device and using method thereof |
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