CN208505839U - The falling ball method coefficient of viscosity measurement experiment device transported can be recycled inside falling sphere - Google Patents
The falling ball method coefficient of viscosity measurement experiment device transported can be recycled inside falling sphere Download PDFInfo
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Abstract
The utility model provides a kind of energy falling sphere inside falling ball method coefficient of viscosity measurement experiment device that circulation transports, applied to coefficient of viscosity measurement experiment technical field, it mainly include cylinder test container, falling sphere guide pipe, falling sphere recovery system, optoelectronic transceiver switch gate and timer, falling sphere guide pipe ensures that prill does downwards vertical falling motion along cylindrical measurement liquid center's axis, without hydro-planing, through conical hopper automatically into the small pallet in falling sphere recovery system after prill whereabouts arrival container bottom, pallet can be elevated along recycling auxiliary square tube, reaching recycling auxiliary rectangular tube, bead tumbles that reach top platform storage ball groove stand-by automatically in pallet when going out ball the window's position, to realize the recycling and internal circulation of falling sphere, it avoids conventional method needs and pulls out and be accumulated in bottom and be stained with the bead of viscous oil and oil body is polluted Laboratory, the experimental teaching suitable for the direct measurement of the Newtonian fluid coefficient of viscosity, suitable for the measurement of falling ball method coefficient of viscosity.
Description
Technical field
The utility model relates to a kind of coefficient of viscosity measuring devices, more particularly to a kind of falling ball method liquid sticky system
Number measurement experiment device, is applied to physical properties of fluids detection and analysis technical field.
Background technique
Coefficient of viscosity characterizes the ability resisted between liquid internal micelle and mutually slid, and has reacted liquid resistance stream
Dynamic measurement is an important physical amount for describing liquid viscosity and interior frictional property.The viscosity for understanding liquid, for grasping
Flowing with prediction liquid the properties such as transports and is of great significance.The measurement of liquid viscosity parameter, for predicting production mistake
The operability of technology controlling and process, transporting and the product of journey when in use has important guiding value, in printing, medicine, stone
All conglomeraties such as oil, automobile have great significance.So the measurement of the coefficient of viscosity seems extremely important.
The common method of measurement coefficient of viscosity has: capillary glass tube method or poiseuille (Poiseuille) method are fallen
Ball, oscillation plate way, eddy-canister viscometer, oscillation suspension method etc., but most methods need to utilize the viscous of known normal fluid
Angle value is calibrated, and independent of normal fluid, theoretically can accurately measure there are two the methods of the coefficient of viscosity: pool howl Ye Fahe
Falling ball method.Since pool howl leaf method needs the standard capillary of needles of various sizes, practical operation is inconvenient, and falling ball method is at industrial direct
Important method in measurement and experimental teaching.
But for falling ball method coefficient of viscosity measuring device in experiment measurement process, container bottom constantly accumulates investment at present
Metal ball, need to pull cleaning out through common tool, this occasion high to utilization rate is very troublesome, such as experimental teaching
Experimental implementation can not be carried out well.And a large amount of instrument uses simultaneously, and the processing of a large amount of metal balls with oil causes to test
The problem of oily pollution of room environmental, this has a headache at many laboratories.
Utility model content
In order to solve prior art problem, the purpose of the utility model is to overcome deficiencies existing for prior art, especially
It is to overcome traditional falling ball method coefficient of viscosity measuring device to need to be commonly used external tool and pull out in experimentation to accumulate in container
Bottom is stained with this necessary operating procedure of the metal ball of viscous oil, provides a kind of energy falling sphere inside falling ball method liquid that circulation transports
Coefficient of viscosity measurement experiment device, recycles falling sphere without external tool automatically, in falling ball method coefficient of viscosity measurement process
Falling sphere can be made to carry out internal circulation to transport, recycle falling sphere automatically, falling sphere is recycled, and oil body simplifies device without excessive
It adjusts, improves measurement accuracy.
Purpose is created to reach above-mentioned utility model, the utility model adopts the following technical solutions:
A kind of to recycle the falling ball method coefficient of viscosity measurement experiment device transported inside falling sphere, main includes setting vertically
Experiment cylindrical vessel, falling sphere guiding device, pedestal and the image collecting device set, experiment cylindrical vessel are with transparent vessel wall
Container, be packed into the experimental liquid medium of Newtonian fluid coefficient of viscosity to be measured in experiment cylindrical vessel, formed cylindrical
Liquid is measured, the bottom for testing cylindrical vessel, which is located, to be mounted on the base, and will be tested falling sphere release by falling sphere guiding device, and be made
Experiment falling sphere is fallen into the coefficient of viscosity experimental liquid medium to be measured in experiment cylindrical vessel, and information collecting device will be led
The falling sphere dropping process and image data to be acquired are sent at information by the signal transmitting apparatus of wired or wireless way
Device is managed, information processing unit is calculated and handled by data, obtains Newtonian fluid coefficient of viscosity to be measured as a result, further including
Photoeletric measuring system and falling sphere recovery system；Falling sphere recovery system mainly include conical hopper falling sphere collector and falling sphere ramp,
Falling sphere recycling auxiliary square tube, the small pallet of recycling, lift lever, falling sphere fall behind arrival experiment cylindrical vessel bottom, receive by bead
Then acquisition means recycle small pallet by lift lever traction, make to recycle small automatically into the small pallet of recycling in falling sphere recovery system
Pallet recycles auxiliary square tube along falling sphere and is promoted, and reaches when going out ball the window's position of falling sphere recycling auxiliary square tube, recycles small support
It is stand-by to tumble the storage ball groove that arrival experiment cylindrical vessel top platform is arranged automatically for falling sphere in disk, to realize that the automatic of falling sphere returns
It receives and internal circulation transports；Information collecting device uses photoeletric measuring system, and photoeletric measuring system mainly includes timer and light
Electric detection means, measurement falling sphere completes the time corresponding to setting falling stroke in cylinder measurement liquid, by measurement data
It is conveyed to information processing unit.
As preferred technical solution of the invention, test cylindrical vessel barrel bore and falling sphere diameter ratio 5:1~
Within the scope of 50:1, the internal diameter ratio of the height and experiment cylindrical vessel of testing cylindrical vessel is greater than 2:1~20:1.
As preferred technical solution of the invention, small ball collection arrangement is by conical hopper falling sphere collector and falling sphere ramp
It is formed by connecting, conical hopper falling sphere collector is to connect a conical hopper with centre bore, cone in experiment cylindrical vessel bottom
The leak of shape funnel bottom end is connected to a slope shape circular pipe, as falling sphere ramp；Experiment cylinder appearance is reached when falling sphere falls
Behind device bottom, then successively by conical hopper falling sphere collector and conical hopper falling sphere collector and the falling sphere slope in falling sphere ramp
Road, automatically into the small pallet of recycling in falling sphere recovery system.
As preferred technical solution of the invention, 2~10mm of sphere diameter of falling sphere, energy falling sphere inside circulation is transported
The volume that can accommodate the freely through channel of falling sphere and falling sphere of falling ball method coefficient of viscosity measurement experiment device is adapted.
As preferred technical solution of the invention, falling sphere guiding device uses falling sphere guide pipe, and falling sphere guide pipe is vertical
It is set to the top of experiment cylindrical vessel, bottom end outlet and the experimental liquid medium in falling sphere guiding device of falling sphere guide pipe
Liquid level contact can maintain falling sphere to carry out the fortune that falls vertically downwards along cylindrical measurement liquid center's axis of experiment cylindrical vessel
It is dynamic, and can control falling sphere without hydro-planing and deviate vertical fall trajectory phenomenon generation.
As preferred technical solution of the invention, recycles small pallet and uses the dustpan shape container with U-shaped edge fence,
Recycling small tray bottom is slope, and the bottom that small pallet passes through connecting hole and lift lever is recycled towards U-shaped mouth in the slope of slope
End is fixedly connected.
As preferred technical solution of the invention, lift lever uses inverted U-shaped bar, and one end lever arm insertion of inverted U-shaped bar is fallen
It is connect in ball recycling auxiliary square tube and with small pallet is recycled, the other end of inverted U-shaped bar is set to outside falling sphere recycling auxiliary square tube
And be fixedly connected with lifting handle, by operating lifting handle, the U-shaped lever arm in falling sphere recycling auxiliary square tube is made take out up and down
Roping is dynamic.
As preferred technical solution of the invention, the falling sphere recycling for rising channel as falling sphere assists square tube and recycling small
Pallet carries out seamless smooth cooperation, when so that recycling small pallet and gone up and down, can be maintained at falling sphere in the small pallet of recycling, falling sphere
The top area design of recycling auxiliary square tube has ball window out, when recycling small pallet and reaching out ball window, ball window face out
Small pallet slope bottom end direction is recycled, so that falling sphere is gone out ball window and tumbles arrival experiment cylindrical vessel top platform setting automatically
Storage ball groove in.
As preferred technical solution of the invention, stores up ball groove and be located on experiment cylindrical vessel top platform, storage ball groove is just
Ball window is gone out to falling sphere recycling auxiliary square pipe top area, there are the gradient and oil filter hole in storage ball groove bottom surface, falling sphere is made to enter storage ball
The experimental liquid medium back flow that slot is brought into reaches in recycling auxiliary square tube, realizes that experimental liquid medium recycles automatically.
As preferred technical solution of the invention, photoelectric detection system uses photoelectricity door system, by upper and lower two pairs of photoelectricity
Transmit-receive switch door and timer are constituted, and upper and lower two pairs of optoelectronic transceiver switch gates are by the difference along experiment cylindrical vessel external setting-up
Upper photoelectricity transmit-receive switch door and lower optoelectronic transceiver switch gate composition is arranged in height, and upper photoelectricity transmit-receive switch door passes through upper optoelectronic switch
Bracket is fixedly installed on experiment cylindrical vessel top peripheral, and lower optoelectronic transceiver switch gate is fixedly installed by lower optoelectronic switch bracket
In experiment cylindrical vessel lower periphery；Falling sphere, which falls, starts timer when reaching upper photoelectricity transmit-receive switch door, reach lower optoelectronic transceiver
Stop timing when switch gate, timer record falling sphere undergoes the time used in the optical axis of two pairs of optoelectronic transceiver switch gates up and down.
Compared with prior art, have the advantages that following substantive distinguishing features and:
1. utility model device recycle falling sphere can automatically, laboratory almost avoids grease from polluting, and falling sphere track is without drift
Floating motion artifacts, photoemission are received to light simplicity, improve conventional efficient and experimental precision；
It is taken multiple measurements 2. falling sphere can be recycled in utility model device, avoids conventional method and measure every time all
It needs to put into new falling sphere, eventually leads to container bottom and accumulate a large amount of bead, not only influence falling sphere in broad, asymmetrical fluid
The approximate condition of movement, and make oil body pollute laboratory because frequently pulling the bead for being stained with viscous oil out；
3. utility model device is suitable for the direct measurement of the Newtonian fluid coefficient of viscosity, especially suitable for falling ball method liquid
The experimental teaching and demonstration of coefficient of viscosity measurement are not necessarily to any external tool, easy to operate, and no greasy dirt is excessive or drips, device
With laboratory neat and tidy.
Detailed description of the invention
Fig. 1 is one falling ball method coefficient of viscosity measurement experiment apparatus structure front schematic view of the utility model embodiment.
Fig. 2 is one falling ball method coefficient of viscosity measurement experiment apparatus structure side schematic view of the utility model embodiment.
Fig. 3 is the structural schematic diagram that the utility model embodiment one recycles small pallet.
Fig. 4 is to tumble ball-sending device structural schematic diagram at the top of one falling sphere of the utility model embodiment automatically.
Specific embodiment
Details are as follows for the preferred embodiment of the utility model:
Embodiment one:
In the present embodiment, a kind of to recycle the falling ball method coefficient of viscosity survey transported inside falling sphere referring to Fig. 1~4
Experimental provision is measured, main includes experiment cylindrical vessel 2, falling sphere guiding device 3, pedestal 1 and the image collecting device being vertically arranged,
Experiment cylindrical vessel 2 is the wide-mouth long cylinder experiment container with transparent vessel wall, is made of lucite tube, interior diameter Φ
100mm, wall thickness 6mm, high 450mm, the stainless steel of diameter of phi 2-6mm can be selected in falling sphere diameter or prill is made in copper product.
It is packed into the experimental liquid medium of Newtonian fluid coefficient of viscosity to be measured in experiment cylindrical vessel 2, forms cylindrical measurement liquid
Body, the bottom of experiment cylindrical vessel 2, which is located, to be mounted on pedestal 1, will be tested falling sphere release by falling sphere guiding device 3, and be made reality
It tests falling sphere to fall into the coefficient of viscosity experimental liquid medium to be measured in experiment cylindrical vessel 2, falling sphere guiding device 3 ensures
Prill does downwards stable vertical drop campaign along cylindrical measurement liquid center's axis, no hydro-planing, as shown in Figure 1.
The falling sphere dropping process and image data that information collecting device will be acquired mainly transmit dress by the signal of wired or wireless way
It sets, sends information processing unit to, information processing unit is calculated and handled by data, obtains Newtonian fluid liquid sticky to be measured
Coefficient results, the falling ball method coefficient of viscosity measurement experiment device that energy falling sphere inside of the present invention circulation transports further includes photoelectric measuring
Amount system and falling sphere recovery system；Falling sphere guiding device 3 uses falling sphere guide pipe, and falling sphere guide pipe ensures that falling sphere is surveyed along cylindrical
Quantity of fluid central axis, which is done downwards, stablizes vertical falling motion, no hydro-planing；Falling sphere recovery system mainly includes conical hopper
Falling sphere collector and falling sphere ramp 7, falling sphere recycling auxiliary square tube 9, the small pallet 8 of recycling, lift lever 10, falling sphere, which falls, reaches experiment
Behind 2 bottom of cylindrical vessel, by small ball collection arrangement 7 automatically into the small pallet 8 of recycling in falling sphere recovery system, then by mentioning
Small pallet 8 is recycled in the traction of rising stem 10, makes to recycle small pallet 8 and recycles auxiliary square tube 9 along falling sphere and promoted, it is auxiliary to reach falling sphere recycling
When going out 16 position of ball window of square tube 9 is helped, falling sphere in small pallet 8 is recycled and tumbles arrival experiment 2 top platform of cylindrical vessel automatically
The storage ball groove 17 of setting is stand-by, to realize that the automatic recycling of falling sphere and internal circulation transport；Information collecting device uses photoelectricity
Measuring system, photoeletric measuring system mainly include timer 6 and photoelectric detection system, and measurement falling sphere is in cylinder measurement liquid
The time corresponding to setting falling stroke is completed, measurement data is conveyed to information processing unit.The present embodiment device is real
The automatic recycling and internal circulation of existing falling sphere, avoid conventional method and need to pull out and be accumulated in bottom and be stained with the bead of viscous oil and make
It obtains oil body and pollutes laboratory.The characteristics of device be falling sphere can recycle automatically, laboratory almost avoid grease pollution, falling sphere track without
Feature not available for the conventional apparatus such as float phenomenon.Device is suitable for the direct survey of Newtonian fluid coefficient of viscosity
Amount, the experimental teaching especially suitable for the measurement of falling ball method coefficient of viscosity.
In the present embodiment, referring to Fig. 1 and Fig. 2, small ball collection arrangement 7 is by conical hopper falling sphere collector and falling sphere ramp
It is formed by connecting, conical hopper falling sphere collector is to connect a conical hopper with centre bore, cone in experiment 2 bottom of cylindrical vessel
The leak of shape funnel bottom end is connected to a slope shape circular pipe, as falling sphere ramp；Experiment cylinder appearance is reached when falling sphere falls
Behind 2 bottom of device, then successively by conical hopper falling sphere collector and conical hopper falling sphere collector and the falling sphere slope in falling sphere ramp 7
Road 7, automatically into the small pallet 8 of recycling in falling sphere recovery system.In the present embodiment, referring to fig. 2~4, small pallet 8 is recycled to adopt
With the dustpan shape container with U-shaped edge fence 14, recycling small 8 bottom of pallet is slope 15, and the slope of slope 15 is towards U
Shape mouth recycles small pallet 8 and is fixedly connected by connecting hole 13 with the bottom end of lift lever 10.Referring to Fig. 1~4, lift lever 10 is used
One end lever arm insertion falling sphere recycling of inverted U-shaped bar, inverted U-shaped bar assists connecting in square tube 9 and with small pallet 8 is recycled, inverted U-shaped bar
The other end is set to 9 outside of falling sphere recycling auxiliary square tube and is fixedly connected with lifting handle 19, by operating lifting handle 19, makes
U-shaped lever arm in falling sphere recycling auxiliary square tube 9 carries out pull movement up and down.Referring to figs. 2 and 3, channel is risen as falling sphere
It falling sphere recycling auxiliary square tube 9 and recycles small pallet 8 and carries out seamless smooth cooperation, it, can be by when so that recycling small pallet 8 and gone up and down
Falling sphere is maintained in the small pallet 8 of recycling, and the top area design of falling sphere recycling auxiliary square tube 9 has ball window 16 out, small when recycling
When pallet 8 reaches out ball window 16,16 face of ball window recycles small 8 slope bottom end direction of pallet out, makes falling sphere through going out ball window
16 can tumble automatically in the storage ball groove 17 for reaching experiment 2 top platform of cylindrical vessel setting.Experiment 2 lower end of cylindrical vessel is socketed on
On the organic glass pedestal 1 for having conical hopper shape falling sphere collector, circular hole, aperture Φ 10mm, circular hole are opened in conical hopper vertex of a cone end
By the slope circular pipe with same apertures lead to falling sphere recycling auxiliary 9 bottom of square tube the small pallet 8 of recycling on, under fall on reality
The prill for testing 2 bottom end of cylindrical vessel rolls down to funnel bottom leak by conical hopper automatically, certainly through falling sphere ramped aisle
On the dynamic small pallet 8 of recycling for rolling down to recycling auxiliary 9 bottom of square tube, slope and 1 horizontal plane of pedestal of falling sphere ramped aisle are formed
It 40 ° of the gradient, is created condition to realize to recycle small pallet 8 and carry out recycling falling sphere automatically, referring to fig. 2.The small use of pallet 8 is recycled to winnow with a dustpan
Dustpan shape structure rolls down to the prill recycled on small pallet 8, due to recycle small pallet 8 U-shaped edge fence 14 and with recycling
The cooperation of square tube 9 is assisted, so that prill is maintained in the small pallet 8 of recycling when recycling the lifting of small pallet 8.Ball is fished out by being promoted
Lifting handle 19, through inverted U-shaped metal lift lever 10 drive, collection have the small pallet 8 of the recycling of prill along recycling auxiliary square
Pipe 9 promoted reach the present embodiment device at the top of, until make prill leave recycling auxiliary square tube 9 in liquid level, referring to Fig. 1~
3.Rise when going out 16 position of ball window of arrival recycling auxiliary square tube 9 when recycling small pallet 8, collects the gold in the small pallet 8 of recycling
Belong to bead and rolls down to storage ball groove 17 automatically from ball window 16 out for use by dustpan shape slope.The prill stored up in ball groove 17 can
It puts into falling sphere guide pipe again with tweezers, carries out experiment next time circulation, realize the recycling of prill, avoid tradition
Method measures require to put into new prill every time, eventually leads to container bottom and accumulates a large amount of bead, not only influences small
Ball pollutes oil body because frequently pulling the bead largely accumulated out in approximate condition that is broad, moving in asymmetrical fluid
Laboratory, referring to fig. 4.
In the present embodiment, referring to Fig. 1~4, the sphere diameter Φ 2-6mm of falling sphere, the present embodiment falling ball method liquid sticky
The volume that can accommodate the freely through channel of falling sphere and falling sphere of coefficient measurement experiment device is adapted.
In the present embodiment, referring to Fig. 1 and Fig. 2, falling sphere guiding device 3 uses falling sphere guide pipe, and falling sphere guide pipe is vertical
It is set to the top of experiment cylindrical vessel 2, wide-mouth long cylinder experiment container upper end is equipped with by organic glass cover board along center
Falling sphere guide pipe 3, the diameter of falling sphere guide pipe 3 are Φ 8mm, in the bottom end outlet and falling sphere guiding device 3 of falling sphere guide pipe
The liquid level 18 of experimental liquid medium contacts, can maintain falling sphere along experiment cylindrical vessel 2 cylindrical measurement liquid center's axis to
It is lower to carry out vertical falling motion, and can control falling sphere without hydro-planing and deviate vertical fall trajectory phenomenon generation.
In the present embodiment, it referring to Fig. 1, Fig. 2 and Fig. 4, stores up ball groove 17 and is located on experiment 2 top platform of cylindrical vessel, storage
17 face falling sphere of ball groove recycling auxiliary 9 top area of square tube goes out ball window 16, and there are the gradient and oil filter hole in storage 17 bottom surface of ball groove, make
Falling sphere, which enters, to be stored up in the experimental liquid medium back flow arrival recycling auxiliary square tube 9 that ball groove 17 is brought into, realizes experimental liquid medium certainly
Dynamic recycling.
In the present embodiment, referring to Fig. 1 and Fig. 2, photoelectric detection system uses photoelectricity door system, is received by upper and lower two pairs of photoelectricity
It sends out switch gate and timer 6 is constituted, upper and lower two pairs of optoelectronic transceiver switch gates are by the difference along experiment 2 external setting-up of cylindrical vessel
Upper photoelectricity transmit-receive switch door 4 and lower optoelectronic transceiver switch gate 5 composition is arranged in height, and upper photoelectricity transmit-receive switch door 4 passes through upper photoelectricity
Switch bracket 11 is fixedly installed on experiment 2 top peripheral of cylindrical vessel, and lower optoelectronic transceiver switch gate 5 passes through lower optoelectronic switch bracket
12 are fixedly installed on experiment 2 lower periphery of cylindrical vessel；Falling sphere, which falls, starts timer when reaching upper photoelectricity transmit-receive switch door 4, arrives
Stop timing when up to lower optoelectronic transceiver switch gate 5, timer 6 records the optical axis that falling sphere undergoes two pairs of optoelectronic transceiver switch gates up and down
Time used.Using photoelectricity door system, photoemission is received to light simplicity the present embodiment, improves measurement accuracy and energy is significant
Reduce measurement error.
The present embodiment coefficient of viscosity measurement experiment device can be carried out falling sphere and collect automatically, cause to fall and break to experiment cylindrical vessel 2
The prill of bottom can roll down to automatically on specified collector, and specific technical solution is:
The present embodiment bores the funnel of the inversed-cone shape on bottom surface in the case where the bottom of experiment cylindrical vessel 2 is designed to the vertex of a cone
Shape, as shown in Fig. 2, under fall on experiment 2 bottom end of cylindrical vessel metal ball roll down to the vertex of a cone automatically, circular hole, circular hole are opened in vertex of a cone end
Falling sphere recycling auxiliary square tube 9 is led to by the slope circular pipe of same diameter, falling sphere recycling auxiliary 9 bottom end of square tube has recycling small
Pallet 8 recycles small pallet 8 and receives the prill of coming that falls.
Circulation, which transports, inside the present embodiment energy falling sphere refers to and can carry out Promotion From Within to the falling sphere after collection, is collected into automatically
The prill for recycling small pallet 8 is not necessarily to external tool, it is promoted in internal subsidiary conduit to measurement container top, particular technique
Scheme is:
The small pallet 8 of recycling in falling sphere recycling auxiliary rectangular tube 9 is connected with one end of an inverted U-shaped metallic rod, inverted U-shaped metal
The other half of bar is contactless with liquid oil outside pipe, and is connected with the lifting handle 19 for the realization fishing ball for being set in a vertical axis,
Lifting handle 19 is operated, collection has the small pallet 8 of the recycling of metal falling sphere with regard to automatic lifting, rises directly along recycling auxiliary rectangular tube 9
9 top of falling sphere recycling auxiliary rectangular tube is reached to pasta is left, liquid oil is recycled under auxiliary rectangular tube 9 is protected in falling sphere and returned automatically
It falls.And recycling small pallet 8 to have is dustpan shape, as shown in figure 3, the prill recycled on small pallet 8 is rolled down to, due to pallet
U-shaped edge fence 14 and the cooperation that auxiliary square tube 9 is recycled with falling sphere, when so that recycling the lifting of small pallet 8, metal ball is maintained at back
It zooms in pallet 8.It by being promoted to lifting handle 19, is driven through inverted U-shaped metal lift lever 10, collection has prill
Small pallet 8 is recycled to recycle at the top of the auxiliary promotion arrival device of rectangular tube 9 along falling sphere until leaving liquid level.
The present embodiment tumble automatically refer to promoted to container top bead be not necessarily to external tool can roll down to automatically it is specified
Recycling storage ball groove 17, specific technical solution is:
Recycling small 8 structure of pallet is sloping dustpan shape shown in Fig. 3, and outer rim and auxiliary rectangular tube are fitted close, recycling
Along rectangular tube lifting process, metal ball will not be fallen small pallet 8, reach falling sphere recycling auxiliary rectangular tube 9 when recycling small pallet 8
When top area, region design has ball window out shown in Fig. 4, and face recycles small 8 slope bottom end direction of pallet, at this moment metal
Ball is recycled at the top of auxiliary square tube 9 along small pallet slope by falling sphere goes out ball window 16, tumbles 2 top of arrival experiment cylindrical vessel automatically
Platform stores up ball groove 17, and storage ball groove 17 has oil filter hole, so that metal ball is tumbled the oil reflux brought into and reaches falling sphere recycling auxiliary square
In pipe 9.
The present embodiment recycling refers to that a prill can be recycled and takes multiple measurements that specific technical solution is:
Test 2 top platform of cylindrical vessel design there are three phase mutual oil return channel connection storage ball groove 17, can according to need
Automatically the metal falling sphere tumbled is placed into different storage ball grooves 17 for use with tweezers, stand-by falling sphere can be thrown again with tweezers
Enter falling sphere guide pipe 3, circulation carries out experiment measurement next time, avoids conventional method and measures that require to put into new metal small every time
Ball eventually leads to experiment 2 bottom of cylindrical vessel and accumulates a large amount of bead, not only influences bead and move in broad, asymmetrical fluid
Approximate condition, and oil body is made because frequently pulling the bead for being stained with viscous oil out to pollute laboratory.
The present embodiment coefficient of viscosity measurement experiment device uses falling sphere and collects automatically, Promotion From Within, tumble, recycle automatically
The apparatus structure used is not necessarily to any external tool, easy to operate, and no greasy dirt is excessive or drips, and device and laboratory are completely whole
It is clean.The present embodiment device be it is a kind of have falling sphere recycle automatically, the measurement of the falling ball method coefficient of viscosity of internal circulatory function it is real
Experiment device can be widely used in coefficient of viscosity measurement experiment technical field.
Embodiment two:
The present embodiment is basically the same as the first embodiment, and is particular in that:
The experiment cylindrical vessel 2 of the falling ball method coefficient of viscosity measurement experiment device transported can be recycled as tool inside falling sphere
There is the wide-mouth long cylinder experiment container of transparent vessel wall, be made of lucite tube, interior diameter Φ 60mm, wall thickness 5mm are high
400mm, falling sphere diameter select the stainless steel of diameter of phi 2-6mm or copper product that prill is made.Wide-mouth long cylinder experiment container
Upper end is equipped with falling sphere guide pipe 3 along center by organic glass cover board, and the diameter of falling sphere guide pipe 3 is Φ 8mm, falling sphere guiding
Device 3 ensures that prill does downwards stable vertical drop campaign, no hydro-planing along cylindrical measurement liquid center's axis.
Experiment 2 lower end of cylindrical vessel is socketed on the organic glass pedestal 1 of conical hopper shape falling sphere collector, taper top
Circular hole, aperture Φ 10mm are opened in 90 ° of angle, conical hopper vertex of a cone end, and circular hole is led to by the slope circular pipe with same apertures and fallen
Ball recycling auxiliary 9 bottom of square tube the small pallet 8 of recycling on, under fall on experiment 2 bottom end of cylindrical vessel prill pass through taper
Funnel rolls down to funnel bottom leak automatically, and the recycling for rolling down to recycling auxiliary 9 bottom of square tube automatically through falling sphere ramped aisle is small
On pallet 8, the slope of falling sphere ramped aisle and 1 horizontal plane of pedestal form 45 ° of the gradient, to realize that recycling small pallet 8 carries out automatically
Recycling falling sphere creates condition, referring to fig. 2.
Prill in storage ball groove 17 can put into again falling sphere guide pipe with tweezers, carry out experiment next time circulation, realize
The recycling of prill, avoids conventional method and measures every time and require to put into new prill, eventually leads to appearance
Device bottom accumulates a large amount of bead, not only influences bead in approximate condition that is broad, moving in asymmetrical fluid, but also because frequently fishing out
The bead that largely accumulates out and make oil body pollute laboratory.
To sum up, the above embodiment of the present invention has the falling ball method coefficient of viscosity measurement dress of circulatory function inside falling sphere
It sets, can apply to coefficient of viscosity measurement experiment technical field.Device mainly include wide-mouth long cylinder experiment container, metal falling sphere and
Falling sphere guide pipe 3, falling sphere recovery system, optoelectronic transceiver switch gate and timer, falling sphere guide pipe 3 ensure prill along cylinder
Shape measurement liquid center's axis does downwards stable vertical drop campaign, no hydro-planing, and prill, which falls, reaches container bottom
By conical hopper automatically into the small pallet 8 of recycling in falling sphere recovery system, auxiliary square can be recycled along falling sphere by recycling small pallet 8
Pipe 9 is elevated, and when arrival falling sphere recycling auxiliary rectangular tube 9 goes out 16 position of ball window, is recycled bead in small pallet 8 and is tumbled arrival automatically
Top platform stores up ball groove 17 for use, to realize the recycling and internal circulation of falling sphere, avoids conventional method needs and pulls accumulation out
The bead of viscous oil is stained in bottom and oil body is made to pollute laboratory.The above embodiment of the present invention device is viscous suitable for Newtonian fluid
The direct measurement of stagnant coefficient, the experimental teaching especially suitable for the measurement of falling ball method coefficient of viscosity.
The utility model embodiment is illustrated above in conjunction with attached drawing, but the utility model is not limited to above-mentioned implementation
Example can make a variety of variations with the purpose that utility model according to the present utility model is created, all according to the utility model technology
Change, modification, substitution, combination or the simplification made under the Spirit Essence and principle of scheme, should be equivalent substitute mode, as long as
The purpose of utility model for meeting the utility model, the falling ball method liquid transported without departing from circulation inside the utility model energy falling sphere
The technical principle and utility model of bulk viscosity measurement experiment device are conceived, and the protection scope of the utility model is belonged to.
Claims (10)
1. a kind of can recycle the falling ball method coefficient of viscosity measurement experiment device transported inside falling sphere, main includes being vertically arranged
Experiment cylindrical vessel (2), falling sphere guiding device (3), pedestal (1) and information collecting device, experiment cylindrical vessel (2) be with
The container of transparent vessel wall is packed into the experiment liquid of Newtonian fluid coefficient of viscosity to be measured in experiment cylindrical vessel (2)
Body medium forms cylindrical measurement liquid, and the bottom of experiment cylindrical vessel (2), which is located, to be mounted on the pedestal (1), leads to
Falling sphere release will be tested by crossing falling sphere guiding device (3), make to test the liquid sticky that falling sphere is fallen into experiment cylindrical vessel (2)
In coefficient experimental liquid medium to be measured, the falling sphere dropping process and image data that the information collecting device will be acquired mainly,
By the signal transmitting apparatus of wired or wireless way, information processing unit is sent to, information processing unit is calculated by data
And processing, Newtonian fluid coefficient of viscosity to be measured is obtained as a result, it is characterized by also including photoeletric measuring systems and falling sphere to return
Receipts system；
The falling sphere recovery system mainly include conical hopper falling sphere collector and falling sphere ramp, falling sphere recycling auxiliary square tube (9),
Small pallet (8), lift lever (10) are recycled, falling sphere falls behind arrival experiment cylindrical vessel (2) bottom, certainly by small ball collection arrangement
Then the dynamic small pallet of recycling (8) into falling sphere recovery system recycles small pallet (8) by lift lever (10) traction, makes to recycle
Small pallet (8) is recycled auxiliary square tube (9) along falling sphere and is promoted, and reach falling sphere recycling auxiliary square tube (9) goes out ball window (16)
When position, recycles falling sphere in small pallet (8) and tumble the storage ball groove (17) for reaching experiment cylindrical vessel (2) top platform setting automatically
For use, to realize that the automatic recycling of falling sphere and internal circulation transport；
The information collecting device uses photoeletric measuring system, and the photoeletric measuring system mainly includes timer (6) and photoelectricity
Detection device, measurement falling sphere cylinder measurement liquid in complete setting falling stroke corresponding to the time, by measurement data to
Information processing unit is conveyed.
2. the falling ball method coefficient of viscosity measurement experiment device transported can be recycled inside falling sphere according to claim 1,
Be characterized in that: the barrel bore and the falling sphere diameter ratio of experiment cylindrical vessel (2) are within the scope of 5:1~50:1, experiment
The height of cylindrical vessel (2) and the internal diameter ratio of experiment cylindrical vessel (2) are greater than 2:1~20:1.
3. the falling ball method coefficient of viscosity measurement experiment device transported can be recycled inside falling sphere according to claim 1,
Be characterized in that: the small ball collection arrangement is formed by connecting by conical hopper falling sphere collector and falling sphere ramp, conical hopper falling sphere
Collector be experiment cylindrical vessel (2) bottom connect a conical hopper with centre bore, the leak of conical hopper bottom end with
One slope shape circular pipe connection, as falling sphere ramp；After falling sphere, which falls, reaches experiment cylindrical vessel (2) bottom, then successively
By the conical hopper falling sphere collector and falling sphere ramp (7) in conical hopper falling sphere collector and falling sphere ramp, automatically into falling
The small pallet of recycling (8) in ball recovery system.
4. the falling ball method coefficient of viscosity measurement experiment device transported can be recycled inside falling sphere according to claim 1,
Be characterized in that: 2~10mm of sphere diameter of falling sphere can recycle the falling ball method coefficient of viscosity measurement experiment transported inside falling sphere
The volume that can accommodate the freely through channel of falling sphere and falling sphere of device is adapted.
5. the falling ball method coefficient of viscosity measurement experiment device transported can be recycled inside falling sphere according to claim 1,
Be characterized in that: the falling sphere guiding device (3) uses falling sphere guide pipe, and the falling sphere guide pipe, which is vertically arranged at experiment cylinder, to be held
The liquid level of experimental liquid medium in the top of device (2), the bottom end outlet of falling sphere guide pipe and the falling sphere guiding device (3)
(18) it contacts, falling sphere can be maintained to be fallen vertically downwards along cylindrical measurement liquid center's axis of experiment cylindrical vessel (2)
Movement, and can control falling sphere without hydro-planing and deviate vertical fall trajectory phenomenon generation.
6. the falling ball method coefficient of viscosity measurement experiment device transported can be recycled inside falling sphere according to claim 1,
It is characterized in that: recycling small pallet (8) using the dustpan shape container with U-shaped edge fence (14), recycling small pallet (8) bottom is
Slope (15), the slope of slope (15) recycle small pallet (8) and pass through connecting hole (13) and lift lever (10) towards U-shaped mouth
Bottom end be fixedly connected.
7. the falling ball method coefficient of viscosity measurement experiment device transported can be recycled inside falling sphere according to claim 1,
Be characterized in that: lift lever (10) use inverted U-shaped bar, inverted U-shaped bar one end lever arm insertion falling sphere recycling auxiliary square tube (9) in and with
Small pallet (8) connection is recycled, the other end of inverted U-shaped bar is set to falling sphere recycling auxiliary square tube (9) outside and and lifting handle
(19) it is fixedly connected, by operating lifting handle (19), the U-shaped lever arm in falling sphere recycling auxiliary square tube (9) is made take out up and down
Roping is dynamic.
8. the falling ball method coefficient of viscosity measurement experiment device transported can be recycled inside falling sphere according to claim 1,
It is characterized in that: rising falling sphere recycling auxiliary square tube (9) in channel as falling sphere and recycle that the progress of small pallet (8) is seamless smooth to match
It closes, when so that recycling small pallet (8) and gone up and down, falling sphere can be maintained in the small pallet (8) of recycling, falling sphere recycling auxiliary square tube
(9) top area design has ball window (16) out, when recycling small pallet (8) and reaching out ball window (16), ball window out
(16) face recycles small pallet (8) slope bottom end direction, and arrival experiment cylinder can be tumbled automatically by so that falling sphere is gone out ball window (16)
In the storage ball groove (17) of container (2) top platform setting.
9. the falling ball method coefficient of viscosity measurement experiment device transported can be recycled inside falling sphere according to claim 1,
Be characterized in that: the storage ball groove (17) is located on experiment cylindrical vessel (2) top platform, and storage ball groove (17) the face falling sphere returns
That receives auxiliary square tube (9) top area goes out ball window (16), and there are the gradient and oil filter hole in storage ball groove (17) bottom surface, make falling sphere into
Enter the experimental liquid medium back flow that storage ball groove (17) is brought into reach in recycling auxiliary square tube (9), realizes experimental liquid medium
Automatic recycling.
10. the falling ball method coefficient of viscosity measurement experiment device transported can be recycled inside falling sphere according to claim 1,
Be characterized in that: the photoelectric detection system uses photoelectricity door system, by upper and lower two pairs of optoelectronic transceiver switch gates and timer (6) structure
At upper and lower two pairs of optoelectronic transceiver switch gates are arranged upper photoelectricity by the different height along experiment cylindrical vessel (2) external setting-up and receive
Switch gate (4) and lower optoelectronic transceiver switch gate (5) composition are sent out, upper photoelectricity transmit-receive switch door (4) passes through upper optoelectronic switch bracket
(11) it is fixedly installed on experiment cylindrical vessel (2) top peripheral, lower optoelectronic transceiver switch gate (5) passes through lower optoelectronic switch bracket
(12) it is fixedly installed on experiment cylindrical vessel (2) lower periphery；Falling sphere, which falls, starts timing when reaching upper photoelectricity transmit-receive switch door (4)
Device stops timing when reaching lower optoelectronic transceiver switch gate (5), timer (6) record falling sphere experience up and down open by two pairs of optoelectronic transceivers
Time used in the optical axis of shutdown.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821086761.3U CN208505839U (en) | 2018-07-10 | 2018-07-10 | The falling ball method coefficient of viscosity measurement experiment device transported can be recycled inside falling sphere |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821086761.3U CN208505839U (en) | 2018-07-10 | 2018-07-10 | The falling ball method coefficient of viscosity measurement experiment device transported can be recycled inside falling sphere |
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| Publication Number | Publication Date |
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| CN208505839U true CN208505839U (en) | 2019-02-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114822161A (en) * | 2022-05-13 | 2022-07-29 | 四川轻化工大学 | Method for researching liquid viscosity coefficient through image acquisition |
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2018
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114822161A (en) * | 2022-05-13 | 2022-07-29 | 四川轻化工大学 | Method for researching liquid viscosity coefficient through image acquisition |
| CN114822161B (en) * | 2022-05-13 | 2023-10-10 | 四川轻化工大学 | Method for researching viscosity coefficient of liquid through image acquisition |
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