CN107478800B - Gravity casting simulates testing stand - Google Patents
Gravity casting simulates testing stand Download PDFInfo
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- CN107478800B CN107478800B CN201710930756.XA CN201710930756A CN107478800B CN 107478800 B CN107478800 B CN 107478800B CN 201710930756 A CN201710930756 A CN 201710930756A CN 107478800 B CN107478800 B CN 107478800B
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B25/00—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes
- G09B25/02—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes of industrial processes; of machinery
- G09B25/025—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes of industrial processes; of machinery hydraulic; pneumatic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D37/00—Controlling or regulating the pouring of molten metal from a casting melt-holding vessel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D45/00—Equipment for casting, not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D46/00—Controlling, supervising, not restricted to casting covered by a single main group, e.g. for safety reasons
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D47/00—Casting plants
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/20—Metals
- G01N33/205—Metals in liquid state, e.g. molten metals
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B25/00—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes
- G09B25/02—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes of industrial processes; of machinery
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
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- Educational Technology (AREA)
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- Business, Economics & Management (AREA)
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- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Medicinal Chemistry (AREA)
- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention discloses a kind of gravity castings to simulate testing stand, including pedestal, casting ladle frame, experiment casting ladle, tilting device, shake table, simulation sandbox and measuring device.The present invention can be selected water, mud or glycerine etc. and simulate liquid metal as medium, be mainly used for hydraulic analogy experiment, casting rule simulation test and the vibration casting simulation test of the cavity filling process during casting and forming.The experiment casting ladle is driven by tilting device and realizes gravity casting, installs different running gate systems in simulation sandbox and casting mold can be carried out and fill type experiment；Test result can be obtained by the sensor installed in measuring device, shake table, simulation sandbox and experiment casting ladle, and test parameters can be by computer-automatic collection, conversion.The present invention can targetedly formulate testing program according to different operating modes, running gate system and casting mold, obtain regular conclusion, and not restricted by factors such as environment and places with research, it is easily operated, at low cost many advantages, such as.
Description
Technical field
The invention belongs to foundry trial equipment technical field, more particularly to a kind of gravity casting simulates testing stand.
Background technology
It is still rule of thumb to determine the casting technological parameters such as discharge coefficient, flow velocity and conjunction at present in conventional cast production
The running gate system of reason, this is very inadequate and unscientific for great complicated and some casting of large quantities, and casting is useless
Product rate is high, often results in heavy economic losses.Molten iron or molten steel need to be gone to casting ladle when casting in Foundry Production
On production line, alignment sprue gate in casting ladle molten iron or molten steel be poured in the sprue cup of casting workpiece, it is cooling after by knockout
Cleaning forms casting.Currently, casting molten iron or molten steel are the heavy casting ladles of handling of being lifted or driven a vehicle by worker's hand, from high frequency furnace
Molten iron or molten steel are connect, then molten iron or molten steel are moved on to casting place, two people or more people cooperation with casting ladle, casting ladle is inclined at leisure
Tiltedly, by casting ladle molten iron or molten steel be poured in the sprue gate of workpiece.Such method is not easy to on-the-spot teaching or experimental study,
Main restricting factor has：(1) it is limited by electricity consumption, general Foundry Production all carries out at night, is not easy to carry out participation number
The experimental study that more teaching or needs is debugged；(2) casting work on the spot environment is poor.The temperature of molten iron or molten steel is up to 1500
DEG C or so, for operating ambient temperature at 40 DEG C or more, security risk is big；(3) working environment is dangerous, and the moment is careful molten iron or steel
Fine grinding is splashed, and there are hidden danger for the personal safety guarantee of field personnel；(4) the cast-in-place whole period is longer, and casting rate is slow；
(5) cast-in-place experimentation cost is high.In terms of being related to the teaching of casting process, research, the teaching in terms of casting and forming is all base
The oral account of Yu teacher or master worker and video teaching, few students can personal understanding casting process, in terms of causing to casting
Many knowledge only rest on the stage of empty talk.And it is visited to site visit by the arrangement of the opportunity of visit, scene receiving
The many restrictions such as condition, safety management and traffic, primary teaching will often be expend a great deal of time with energy in preparation and group
It knits.The workload for not only increasing organizing preparation improves instruction cost, and there is also certain peaces for casting on-the-spot teaching
Full hidden danger and management difficulty.Therefore, numerical simulation and the physical simulation experiment based on hydraulic analogy become the scene of replacement
Casting experiment carries out a kind of main means of teaching and scientific research experiment.Meanwhile with the development of Foundry Production technology, measuring technology
With application of the computer in Foundry Production and research, and the raising to casting quality requirement, there is an urgent need to logical in laboratory
The method for crossing physical analogy and mathematical simulation, to the main process of Foundry Production --- cavity filling process and process of setting carry out essence
True measurement studies its rule, obtains qualitative and quantitative mathematical formulae.So as to measure some unknown phenomenons, and with
Obtained rule goes to instruct and control production process in laboratory, improves the quality and yield of casting, and then obtains better
Economic benefit.
Computer based method for numerical simulation is although have certain reference value, and error is larger, and many works
Skill parameter can not be obtained by the method for computer simulation.Some external factories from the seventies in last century begin to for it is great,
Casting complicated and that batch is larger generally first uses technique study cavity filling process and the cast system of Fluid Dynamics in the lab
System finds out its rule, determines most rational process program, is then produced, to obtain best economic effect.
Fluid Dynamics technology has become common research method in cast casting optimization design, and ideal casting technique is set
Meter can effectively mitigate the volume gas in liquid metal cavity filling process and be mingled with tendency.Research process is not only in that the aobvious of flow process
Show and to the supplement of Computer Numerical Simulation process, and with modern computer technology, image processing techniques and laser skill
The development of art, such as PIV liquid flow field visualization techniques are utilized, it is right using the effective algorithm of computer graphics high speed
The flow field image of acquisition carries out Quantitative study.But have to the similitude of Fluid Dynamics process and liquid metal cavity filling process higher
It is required that the Test-bed Designs of Fluid Dynamics, more stringent requirements are proposed, to improve the accuracy of water analogue test result.
For the research in terms of casting experimental simulation device and method, existing literature also proposed some solutions.Example
Such as, application No. is 201210591733.8 Chinese patents to disclose a kind of molten steel casting process significant data of can display real-time
System is made of unit of weighing, receiver, industrial personal computer, live large screen and wireless remote control handheld box, passes through in casting process
Analog sensor uninterruptedly measures the weight change of molten steel, and the analog signal of sensor is converted into digital signal, passes through no line number
Word transmitting module is ceaselessly emitted to scene, is suitable for live heavy castings and produces and uses, is not suitable for measuring multiple parameters
It is required that experimental study.It discloses a kind of heating of pitch paying movable type application No. is 201410482876.4 Chinese patent and stirs
The small-sized analog machine of laboratory, including body, wheel, agitating shaft, a mixing bowl, stirring blade, linking arm, motor and speed changer are mixed,
For producing a small amount of mixture, and the property such as the fluidity of testing inspection MA asphalts, hardness and dynamic stability indoors
It can parameter；Application No. is 201621049701.5 Chinese utility model patents to disclose a kind of simulation of bored concrete pile casting process
Model test apparatus, including metal body panel, metal funnel, conduit and pile body component, initial stage is entered for simulation concrete
The concrete of perfusion is in the following, jacking the concrete that initial stage is perfused and its mud above or water rising, formation are continuous closely knit
The casting process of concrete pile body.Application No. is 200920110535.9 Chinese utility model patents to disclose a kind of high pressure break
Gap grouting simulation test platform, is mainly used for the research of deep formation crack high-pressure slip-casting technological parameter.1992, Wuhan Institute of Technology
Liu Chen, Guo Zupei exist《Experimental technique and management》3rd it is interim delivered it is entitled《SMSJ-44A type Fluid Dynamics running gate systems are tested
Platform development》Paper describes SMSJ-44A type Fluid Dynamics running gate system experimental benches, including water tank, water tank console, cast work
Platform measures water tank, and the control section of experimental bench is made of liquid level controller, temperature controller and calculagraph, arbitrary when for experiment
It is applied in combination, whole components, which are all made of components, the testing stands such as integrated package, number display and digital dial switch, can simulate casting
Part casting process observes the mobility status of molten metal and defect etc. in casting process, is carried to formulate process program and design work
For foundation, but flow velocity, flow and casting time can only be measured.Wang Huiguang, Ye Rongmao, Wang Dong of Harbin Institute of Technology《Heat
Processing technology》1986 the 5th it is interim deliver it is entitled《The filling rule and its structure shadow of low pressure casting vertical slitting gate system
Loud water analogue test》Paper describes a kind of simple casting examination made of organic glass equipped with Slot Gating System
Experiment device includes the transparent simulation casting mold of liquid storage pressurized canister, stalk, vertical tube and belt type cavity, is observed with the method for hydraulic analogy
Slot Gating System, molten metal is used to fill the process of thin wall type chamber, the fluid in stowing operation in low pressure casting production
The point characteristics of motion and casting mold cavity fill sequence, while investigating filling velocity, running gate system each unit structure and size, type
Cavity wall is thick, the influence in relation to factor to stowing operation such as fluid viscosity, and experimental rig can only carry out the cast examination of vertical lap seam gap type
Test simulation.Deng Zhaohao, Zhang Entao, Li Fu congruence people of Dalian Polytechnic College exist in May, 1981《Foundry work》Magazine is delivered entitled《Cast
The discharge coefficient μ of Fluid Dynamics experiment-running gate system of system》Paper in describe the method for Fluid Dynamics experiment, according to being carried
The mathematical formulae of the discharge coefficient of the running gate system gone out determines the discharge coefficient of running gate system using four kinds of organic glass models,
And with the method hydrous water simulated experiment of electrical analogue, draw flow coefficient curve.Zhao Zhongxing, golden light, Wang Yongchen, Wang Lianqi etc.
People exists《Heat processing technique》2003 the 2nd it is interim deliver it is entitled《The development of multifunctional water simulator stand》One is described in paper
Kind water analogue test platform, including workbench, low pressure casting water tank, main water box, water supply pump, deputy tank, measurement water tank, recirculated water
It pumps, pour water injecting tank, flow regulation pipe, elevating mechanism, moving trolley, current meter, moving trolley and its water tank above can be front and back left
Right movement, screw of the lifting by leading screw and with runner for pouring water injecting tank realize that the testing stand can be used for discharge coefficient by manually
Measurement and carrying out fill type experiment, casting rule simulation test cannot be carried out.
The significant drawback of the prior art is to lack effective indoor gravitational casting simulation test device, and being especially a lack of can
To be provided simultaneously with the comprehensive examination carried out gravity casting rule simulation test, cavity filling process hydraulic analogy experiment and vibration casting and tested
Platform is tested, affected by environment larger, measurable parameter is less, and is awkward, and cannot meet the gravity casting mold to casting and forming
Quasi- experiment needs, and experiment and research approach cannot be targetedly formulated according to a variety of different operating modes.
Invention content
In view of the deficiencies of the prior art, it is an object of the present invention to provide a kind of gravity castings to simulate testing stand, can be used in
Gravity casting simulation teaching during casting and forming and experimental study, can be in classroom or labs, not by environment, time
With the influence in place, the authenticity of experiment not only ensure that, but also guarantee is imparted knowledge to students or that tests is smoothed out, while there is high warp
Ji property and safety, reduce experimentation cost, can overcome the deficiencies of existing technologies.
The technical problems to be solved by the invention are realized using following technical scheme.
A kind of gravity casting simulation testing stand, including pedestal, casting ladle frame, experiment casting ladle, tilting device, shake table, simulation
Sandbox and measuring device.Wherein, the casting ladle frame is located at the middle part of pedestal, and is fixedly connected with by screw with pedestal；Described
It tests casting ladle to be mounted on casting ladle frame, the both sides for testing casting ladle are connected with casting ladle frame by hinge；The tilting device position
It is fixedly mounted on pedestal in the bottom at the rear of pedestal, the tilting device, the front end of the tilting device and experiment
Casting ladle is connected by hinge；The shake table is located at the front end of pedestal, and is connected with pedestal；The simulation sandbox is fixed
Mounted on the top of shake table；The measuring device is located at the front side of pedestal, and the measuring device is solid by sliding block
Surely it is mounted on the base, and can be moved forward and backward along pedestal.
The casting ladle frame includes central post, top beam, crossbeam and lifting gear, is used to support and installs experiment casting ladle.Its
In, the central post has four, and is symmetrically and fixedly mounted on pedestal by corner brace and screw, and the top beam is fixedly mounted
At the top of two central posts in left and right, the crossbeam is mounted between front and back two central posts, the crossbeam and central post
Between be connected by prismatic pair, and can along central post up and down slide, be additionally provided in the middle part of crossbeam for experiment casting ladle
The revolution axis pin being connected；There are two the lifting gears, and is arranged symmetrically in the left and right sides of pedestal, for driving crossbeam
It is lifted along central post with experiment casting ladle；The bottom of the lifting gear is connected with pedestal, the top of lifting gear and crossbeam
It is connected by hinge；It is additionally provided with three-dimensional force sensor and angular transducer on the revolution axis pin of crossbeam, for measuring experiment
Casting ladle and tilting device are applied to the power of crossbeam.The lifting gear is using electric pushrod or hydraulic cylinder or electro-hydraulic cylinder or gas
Cylinder.
It is equipped with ladle spout in the top front of the experiment casting ladle, is equipped in the experiment casting ladle on both sides of the middle solid
Rationed marketing axle sleeve；T-slot under T-slot and side is respectively equipped on side in the both sides up and down of the fixed pin axle sleeve, in the side
It is installed with removable pin axle sleeve and lower removable pin axle sleeve, the upper active pin shaft respectively outside T-slot under upper T-slot and side
Set and lower removable pin axle sleeve are connected by T-type screw with experiment casting ladle；It is also set on the trailing flank of the experiment casting ladle
Upper T-slot and rear lower T-slot after having；It is installed with upper ear seat respectively under in the rear upper T-slot and afterwards outside lower T-slot
Ear mount, and the upper ear seat and lower ear base is connected by T-type screw with experiment casting ladle；The experiment casting ladle passes through solid
Rationed marketing axle sleeve or upper removable pin axle sleeve or lower activity revolution pin sleeve are connected with the revolution axis pin on crossbeam；In the experiment
Temperature sensor, electric heater and electric heating temperature device are equipped in casting ladle.The fixed pin axle sleeve, upper removable pin axle sleeve and under
Removable pin axle sleeve can be matched with the revolution axis pin on crossbeam, and upper removable pin axle sleeve and lower removable pin axle sleeve can be respectively in sides
Sliding is adjusted and is fixed in T-slot under upper T-slot and side, and the position for adjusting experiment casting ladle axis of rotation when toppling over can
Influence of the different axiss of rotation to liquid metal casting form and filling type effect for development test casting ladle, and experiment casting ladle
Influence of the different axiss of rotation to the structure and driving force of tilting device.Upper ear seat and lower ear base also can be respectively in rear upper T-types
Sliding is adjusted and fixed in slot and afterwards lower T-slot, for adjusting tilting device and two connects hinges up and down for testing casting ladle
Position, and then adjust tilting device experiment casting ladle is applied and topple over the angle of power, can be used for studying tilting device force form,
The parameters such as direction, dimension topple over the influence of casting to experiment casting ladle, and then the comprehensive splitting or integrating of the class of establishment that can be used for tilting device
Analysis and optimizing research and verification.
The tilting device includes rear column, upper telescopic rod and lower telescopic rod, for driving experiment casting ladle around fulcrum post
The axis of axis rotates, and realizes and topple over casting.Wherein, the rear column is for installing and supporting telescopic rod and lower flexible
The bottom of bar, the rear column is fixedly mounted on by corner brace and screw on pedestal, on the leading flank of the rear column
Equipped with graduated scale, for demarcate and measure upper telescopic rod and lower flexible rod rear end rear column installation site；It is stretched on described
The rear end of contracting bar is connected by hinge with rear column, and the front end of upper telescopic rod is connected by hinge with upper ear seat；Described
The rear end of lower telescopic rod is connected by hinge with rear column, and the front end of lower telescopic rod is connected by hinge with lower ear base.Institute
The upper telescopic rod and lower telescopic rod stated are using electric pushrod or hydraulic cylinder or electro-hydraulic cylinder or cylinder.
The simulation sandbox is used to substitute the sandbox and casting mold in casting and forming experiment, and installs examination in simulation sandbox
The different types of running gate system and casting mold tested fill type mistake to study different types of running gate system and casting mold to liquid metal
The influence of journey.It is equipped with sprue cup in the top center of the simulation sandbox, is equipped in the top front of the simulation sandbox
Two open risers being arranged symmetrically are equipped with experiment replaceable running gate system and casting mold, in institute in the simulation sandbox
It is equipped with current meter in the sprue cup stated, is used to measure the media such as water, mud or glycerine of simulation liquid metal during testing
Flow velocity when injection and flow parameter.Simulation sandbox, sprue cup and the open riser and the cast in simulation sandbox
System and casting mold are made of clear perspex material or all-transparent acrylic material, in order to testing crew in test into
Row visual observations are taken pictures with high-speed camera.
The measuring device includes measuring holder, high-speed camera and laser displacement sensor.Wherein, the measurement
The bottom of holder is fixedly mounted on by sliding block on pedestal, for installing high-speed camera, laser displacement sensor or other need
The measuring instrument to install temporarily；The measurement holder can be moved forward and backward along pedestal, to adjust measurement in the front-back direction
Position；It is additionally provided with lock-screw in the bottom for measuring holder, is used for fixation measuring holder.The high-speed camera, which is mounted on, to be surveyed
The upper end for measuring holder, the media such as water, mud or glycerine for measuring simulation liquid metal and field trash are in casting process
Displacement and track；It is connected by tilt adjustable section bearing between the high-speed camera and measurement holder, inclination angle can be passed through
Support with adjustable adjusts the shooting angle of high-speed camera.The laser displacement sensor is located at the lower section of high-speed camera,
The position and thickness letter of the media and field trash such as water, mud or glycerine for measuring simulation liquid metal in casting process
Breath；The laser displacement sensor by the T-type of its tail portion can lock-screw be mounted on and measure on holder, convenient for measuring branch
Height is adjusted on frame.The side that installation measures holder on the pedestal measures branch equipped with graduated scale for measuring and marking
Position of the frame on pedestal.
The shake table includes telescopic legs, workbench and vibrating motor.Wherein, the telescopic legs have four
It is a, and be arranged symmetrically on pedestal, it is used to support and adjusts the height of workbench；The bottom of the telescopic legs and pedestal
It is fixedly connected with by screw, is connected by spherical hinge between the top and workbench of telescopic legs.The vibrating motor has
Two, and it is fixedly mounted on the bottom of workbench, provide exciting force for the vibration of workbench；On the top of the workbench
Portion is equipped with weighing sensor, in the variation of the weight for measuring the simulation sandbox of installation on the table and injection simulation sandbox
Simulate the weight of the medium of liquid metal；Acceleration transducer is additionally provided with below workbench, for measuring workbench in real time
Displacement, speed and acceleration.The axis of two vibrating motors is mutually parallel, and the complete phase of specifications and models of two vibrating motors
Together, and synchronous backward rotation is kept at work.The telescopic legs use double acting hydraulic cylinder or the electro-hydraulic cylinder of double acting
Or double-acting cylinder, it is designed so that telescopic legs also have the function of damper concurrently.
It is additionally provided with electric cabinet outside the basic machine of the present invention, data collecting card, control are equipped in the electric cabinet
Device and computer, the heat transfer agent for obtaining each sensor are acquired, analyze and handle.
In use, first selecting the media type of different simulation liquid metals according to different test content and testing casting ladle
Heating temperature is being tried according to the rear and front end of upper telescopic rod and lower telescopic rod in tilting device that needs to adjust respectively specifically tested
Test the position on casting ladle and rear column, the position or lower active pin shaft that active pin shaft is sleeved on side in T-slot in determination are sleeved on side
Position in lower T-slot is simultaneously locked, and regulates the position and high-speed camera and laser position for measuring holder on pedestal
Position of the measuring instruments such as displacement sensor on measuring holder regulates the position of simulation sandbox on a vibration table, and according to examination
That tests is necessary to determine whether the parameters such as selection vibration casting pattern and the direction of vibration, frequency and the amplitude that determine shake table.Respectively
After the completion of item parameter regulation, the running gate system of experiment and casting mold are fixedly mounted in simulation sandbox, and ensure running gate system
It is connected between sprue cup reliable；Then, the media such as water, mud or the glycerine of the simulation liquid metal debugged are poured into experiment
In casting ladle and it is heated to set temperature, then starts tilting device driving experiment casting ladle rotation, executes casting test mission.
Execute vibrate casting test mission when, by change vibrating motor installation site on the table, direction and
The work schedule of vibrating motor can make workbench generate the vibration of different directions and type.Three-dimensional force sensor, angle sensor
Image letter captured by device, temperature sensor, current meter, laser displacement sensor, acceleration transducer and high-speed camera
Breath etc. is transferred to computer and controller by data collecting card.
The invention has the advantages that compared with prior art, structure of the invention is compact, the weight of liquid metal can be simulated
Power casting, vibration casting and gravity casting cavity filling process, and parameter regulation is convenient, flexibility and highly practical, test parameter is more,
Can be the selection of casting process scheme, the formation mechenism of the design of running gate system and casting flaw, vibration casting mechanism study and
Law study of casting provides authentic data, and can be the researchs such as casting equipment driving mechanism conceptual design and optimization, complete machine exploitation
Work provides test data and carries out principle prototype verification.Test result can pass through measuring device, shake table, simulation sandbox and examination
It tests the sensor installed in casting ladle to obtain, and test parameters can be by computer-automatic collection, analysis and conversion.The present invention can root
Testing program is targetedly formulated according to different operating modes, running gate system and casting mold, obtains regular conclusion, and with research
Do not restricted by factors such as environment and places, it is easily operated, at low cost many advantages, such as, can overcome the deficiencies of existing technologies.
Description of the drawings
Fig. 1 is the general structure schematic diagram of the present invention；
Fig. 2 is the connection relationship diagram between the experiment casting ladle of the present invention and tilting device；
Fig. 3 is the structural schematic diagram of the experiment casting ladle of the present invention；
Fig. 4 is the connection relationship diagram between the shake table of the present invention and simulation sandbox.
Specific implementation mode
In order to which the technical means, creative features, achievable purpose and effectiveness for making the present invention be realized are easy to understand, below
It in conjunction with specific embodiments and illustrates, the present invention is further explained.
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, a kind of gravity casting simulates testing stand, including pedestal 1, casting ladle frame 2, experiment
Casting ladle 3, tilting device 4, shake table 5, simulation sandbox 6 and measuring device 7.Wherein, the casting ladle frame 2 is located in pedestal 1
Portion, and be fixedly connected with by screw with pedestal 1；The experiment casting ladle 3 be mounted on casting ladle frame 2 on, test casting ladle 3 both sides with pour
Packet frame 2 is connected by hinge；The tilting device 4 is located at the rear of pedestal 1, and the bottom of the tilting device 4 passes through
Screw is fixedly mounted on pedestal 1, and the front end of the tilting device 4 is connected with experiment casting ladle 3 by hinge；Described shakes
Dynamic platform 5 is located at the front end of pedestal 1, and is connected with pedestal 1；The simulation sandbox 6 is fixedly mounted on the top of shake table 5；Institute
The measuring device 7 stated is located at the front side of pedestal 1, and the measuring device 7 is fixedly mounted on by sliding block on pedestal 1, and
It can be moved forward and backward along pedestal.
As depicted in figs. 1 and 2, the casting ladle frame 2 includes central post 21, top beam 22, crossbeam 23 and lifting gear 24, is used
In support and installation experiment casting ladle 3.Wherein, the central post 21 has four, and is symmetrically fixedly mounted by corner brace and screw
On pedestal 1, the top beam 22 is fixedly mounted on the top of two central posts 21 in left and right, and the crossbeam 23 is mounted on front and back
Between two central posts 21, it is connected by prismatic pair between the crossbeam 23 and central post 21, and can be along central post 21
Sliding up and down is additionally provided with the revolution axis pin 231 for being connected with experiment casting ladle 3 at the middle part of crossbeam 23；The lifting dress
It sets there are two 24, and is arranged symmetrically in the left and right sides of pedestal 1, for driving crossbeam 23 and experiment casting ladle 3 along central post 21
Lifting；The bottom of the lifting gear 24 is connected with pedestal 1, and the top of lifting gear 24 is connected with crossbeam 23 by hinge
It connects；It is additionally provided with three-dimensional force sensor and angular transducer on the revolution axis pin 231 of crossbeam 23, for measuring experiment 3 He of casting ladle
Tilting device 4 is applied to the power of crossbeam 23.The lifting gear 24 is using electric pushrod or hydraulic cylinder or electro-hydraulic cylinder or cylinder.
As shown in Figure 1, Figure 2 and Figure 3, it is equipped with ladle spout 31 in the top front of the experiment casting ladle 3, in the examination
It tests 3 on both sides of the middle of casting ladle and is equipped with fixed pin axle sleeve 32；It is respectively equipped with T on side in the both sides up and down of the fixed pin axle sleeve 32
T-slot 34 under type groove 33 and side is installed with upper removable pin respectively under T-slot 33 and side on the side outside T-slot 34
Axle sleeve 35 and lower removable pin axle sleeve 36, the upper removable pin axle sleeve 35 and lower removable pin axle sleeve 36 pass through T-type screw and examination
Casting ladle 3 is tested to be connected；Upper T-slot 37 and rear lower T-slot 38 after being additionally provided on the trailing flank of the experiment casting ladle 3；Institute
It is installed with upper ear seat 39 and lower ear base 310, and the upper ear respectively outside the rear upper T-slot 37 and rear lower T-slot 38 stated
Seat 39 and lower ear base 310 are connected by T-type screw with experiment casting ladle 3；The experiment casting ladle 3 passes through fixed pin axle sleeve 32
Or upper removable pin axle sleeve 35 or lower movable fulcrum post 36 are connected with the revolution axis pin 231 on crossbeam 23；It is poured in the experiment
Temperature sensor, electric heater and electric heating temperature device are equipped in packet 3.The fixed pin axle sleeve 32, upper removable pin axle sleeve 35
It can be matched with the revolution axis pin 231 on crossbeam 23 with lower removable pin axle sleeve 36, and upper removable pin axle sleeve 35 and lower removable pin
Axle sleeve 36 can sliding be adjusted and fixed in T-slot 34 under T-slot 33 and side on side respectively, is being inclined for adjusting experiment casting ladle 3
The position for the axis of rotation of while falling can be used for the different axiss of rotation of development test casting ladle 3 to liquid metal casting form and fill type
The influence of effect, and experiment casting ladle 3 influence of the different axiss of rotation to the structure and driving force of tilting device 4.Upper ear seat
39 and lower ear base 310 also can sliding is adjusted and fixed in rear upper T-slot 37 and afterwards lower T-slot 38 respectively, topple over for adjusting
The position of device 4 and two connects hinges up and down of experiment casting ladle 3, and then adjust tilting device 4 and the experiment application of casting ladle 3 is toppled over
The angle of power can be used for studying topple over casting of the parameters such as the force form of tilting device 4, direction, dimension to experiment casting ladle 3
It influences, and then can be used for class of establishment synthesis, analysis and optimizing research and the verification of tilting device 4.
As depicted in figs. 1 and 2, the tilting device 4 includes rear column 41, upper telescopic rod 42 and lower telescopic rod 43, is used
It is rotated around the axis of fulcrum post axis 231 in driving experiment casting ladle 3, and realizes and topple over casting.Wherein, the rear column 41 is used for
Installation and the upper telescopic rod 42 of support and lower telescopic rod 43, the bottom of the rear column 41 are fixedly mounted on by corner brace and screw
On pedestal 1, graduated scale is equipped on the leading flank of the rear column 41, for demarcating and measuring upper telescopic rod 42 and lower flexible
Installation site of 43 rear end of bar in rear column 41；The rear end of the upper telescopic rod 42 is connected by hinge with rear column 41,
The front end of upper telescopic rod 42 is connected by hinge with upper ear seat 39；It is stood with rear by hinge the rear end of the lower telescopic rod 43
Column 41 is connected, and the front end of lower telescopic rod 43 is connected by hinge with lower ear base 310.The upper telescopic rod 42 and lower flexible
Bar 43 is using electric pushrod or hydraulic cylinder or electro-hydraulic cylinder or cylinder.
As shown in Figure 1 and Figure 4, the simulation sandbox 6 be used for substitute casting and forming experiment in sandbox and casting mold, and
The different types of running gate system and casting mold for simulating installation experiment in sandbox 6, to study different types of running gate system and casting
Influence of the type to liquid metal cavity filling process.It is equipped with sprue cup 61 in the top center of the simulation sandbox 6, in the mould
The top front for intending sandbox 6 is set there are two the open riser 62 being arranged symmetrically, and being used equipped with experiment in the simulation sandbox 6 can be more
The running gate system and casting mold changed are equipped with current meter in the sprue cup 61, for simulation liquid gold during measurement experiment
The flow velocity when injection of the media such as water, mud or the glycerine of category and flow parameter.The simulation sandbox 6, sprue cup 61 and bright
Riser 62 and mounted on simulation sandbox 6 in running gate system and casting mold by clear perspex material or all-transparent acrylic material
Material is made, and carries out in test visual observations in order to testing crew or takes pictures with high-speed camera 72.
As shown in Figure 1, the measuring device 7 includes measuring holder 71, high-speed camera 72 and laser displacement sensor
73.Wherein, the bottom of the measurement holder 71 is fixedly mounted on by sliding block on pedestal 1, for install high-speed camera 72,
Laser displacement sensor 73 or other measuring instruments for needing to install temporarily；Before and after the measurement holder 71 can be along pedestal 1
It is mobile, to adjust measurement position in the front-back direction；It is additionally provided with lock-screw in the bottom for measuring holder 71, is used for fixation measuring
Holder 71.The high-speed camera 72 is mounted on the upper end for measuring holder 71, water, mud for measuring simulation liquid metal
Or the displacement and track of the media such as glycerine and field trash in casting process；The high-speed camera 72 with measure holder 71 it
Between be connected by tilt adjustable section bearing 721, can pass through tilt adjustable section bearing 721 adjust high-speed camera 72 shooting angle
Degree.The laser displacement sensor 73 is located at the lower section of high-speed camera 72, water, mud for measuring simulation liquid metal
Or the position and thickness information of the media such as glycerine and field trash in casting process；The laser displacement sensor 73 passes through it
The T-type of tail portion can lock-screw be mounted on measure holder 71 on, convenient for measure holder 71 on adjust height.In the pedestal
The side of installation measurement holder 71 is equipped with graduated scale on 1, for measuring and marking the position for measuring holder 71 on pedestal.
As shown in Figure 1 and Figure 4, the shake table 5 includes telescopic legs 51, workbench 52 and vibrating motor 53.Its
In, there are four the telescopic legs 51, and is arranged symmetrically on pedestal 1, is used to support and adjusts the height of workbench 52；
The bottom of the telescopic legs 51 is fixedly connected with pedestal 1 by screw, the tops of telescopic legs 51 and workbench 52 it
Between be connected by spherical hinge.The vibrating motor 53 has two, and is fixedly mounted on the bottom of workbench 52, for work
The vibration of platform 52 provides exciting force；It is equipped with weighing sensor at the top of the workbench 52, work is mounted on for measuring
Make the weight of the medium of simulation liquid metal in the variation and injection simulation sandbox 6 of the weight of the simulation sandbox 6 on platform；It is working
The lower section of platform 52 is additionally provided with acceleration transducer, displacement, speed and acceleration for measuring workbench 52 in real time.Two vibrations
The axis of motor 53 is mutually parallel, and the specifications and models of two vibrating motors 53 are identical, and keeps synchronizing at work anti-
To rotation.The telescopic legs 51 are so designed using double acting hydraulic cylinder or the electro-hydraulic cylinder of double acting or double-acting cylinder
So that telescopic legs 51 also have the function of damper concurrently.
It is additionally provided with electric cabinet outside the basic machine of the present invention, data collecting card, control are equipped in the electric cabinet
Device and computer, the heat transfer agent for obtaining each sensor are acquired, analyze and handle.
In use, first selecting the media type and experiment casting ladle 3 of different simulation liquid metals according to different test content
Heating temperature, before and after needing to adjust in tilting device 4 telescopic rod 42 and lower telescopic rod 43 respectively according to what is specifically tested
Position of the both ends on experiment casting ladle 3 and rear column 41, in determination position of the removable pin axle sleeve 35 on side in T-slot 33 or under
Position of the removable pin axle sleeve 36 under side in T-slot 34 is simultaneously locked, regulate measure position of the holder 71 on pedestal 1 with
And position of the measuring instruments such as high-speed camera 72 and laser displacement sensor 73 on measuring holder 71, regulate simulation sandbox
6 position on shake table 5, and be necessary to determine whether selection vibration casting pattern according to experiment and determine shake table 5
The parameters such as direction of vibration, frequency and amplitude.After the completion of parameters are adjusted, the running gate system of experiment and casting mold are fixedly mounted
In simulation sandbox 6, and ensure to connect between running gate system and sprue cup 61 reliable；Then, the simulation liquid gold that will have been debugged
The media such as water, mud or the glycerine of category pour into experiment casting ladle 3 and are heated to set temperature, then start tilting device 4 and drive
It tests casting ladle 3 to rotate, executes casting test mission.
Execute vibrate casting test mission when, by changing installation site of the vibrating motor 53 on workbench 52, side
To the work schedule with vibrating motor 53, workbench 52 can be made to generate the vibration of different directions and type.Three-dimensional force sensor, angle
Degree sensor, temperature sensor, current meter, laser displacement sensor 73, acceleration transducer and high-speed camera 72 are clapped
The image information etc. taken the photograph is transferred to computer and controller by data collecting card.
In the description of the present invention, it is to be understood that, term "upper", "lower", "left", "right", "horizontal", "top",
The orientation or positional relationship of the instructions such as "bottom", "inner", "outside", "front", "rear" is to be based on the orientation or positional relationship shown in the drawings,
Be merely for convenience of description of the present invention and simplification of the description, do not indicate or imply the indicated device or element must have it is specific
Orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
The basic principles, main features and advantages of the invention have been shown and described above.The technical staff of the industry should
Understand, the present invention is not limited to the above embodiments, and the above embodiments and description only describe the originals of the present invention
Reason, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes and improvements
It all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appended claims and its equivalent circle
It is fixed.
Claims (6)
1. a kind of gravity casting simulates testing stand, including pedestal, casting ladle frame, experiment casting ladle, tilting device, shake table, simulation sand
Case and measuring device, it is characterised in that：The casting ladle frame is located at the middle part of pedestal, and is fixedly connected with by screw with pedestal；Institute
The experiment casting ladle stated is mounted on casting ladle frame, and the both sides for testing casting ladle are connected with casting ladle frame by hinge；Described topples over dress
Setting in the rear of pedestal, the bottom of the tilting device is fixedly mounted on pedestal, the front end of the tilting device with
Experiment casting ladle is connected by hinge；The shake table is located at the front end of pedestal, and is connected with pedestal；The simulation sandbox
It is fixedly mounted on the top of shake table；The measuring device is located at the front side of pedestal, and the measuring device passes through cunning
Block is fixedly mounted on pedestal, and can be moved forward and backward along pedestal；
The casting ladle frame includes central post, top beam, crossbeam and lifting gear, and the central post has four, and symmetrical fixed
It is mounted on the base, the top beam is fixedly mounted on the top of two central posts in left and right, and the crossbeam is mounted on front and back two
Between root central post, it is connected by prismatic pair between the crossbeam and central post, and can be up and down slid along central post,
Revolution axis pin is additionally provided in the middle part of crossbeam；There are two the lifting gears, and is arranged symmetrically in the left and right sides of pedestal, described
Bottom and the pedestal of lifting gear be connected, the top of lifting gear is connected with crossbeam by hinge；In the fulcrum post of crossbeam
Three-dimensional force sensor and angular transducer are additionally provided on axis；
It is equipped with ladle spout in the top front of the experiment casting ladle, fixed pin is equipped in the experiment casting ladle on both sides of the middle
Axle sleeve；T-slot, the T-type on the side under T-slot and side are respectively equipped on side in the both sides up and down of the fixed pin axle sleeve
Be installed with removable pin axle sleeve and lower removable pin axle sleeve under slot and side outside T-slot respectively, the upper removable pin axle sleeve and
Lower removable pin axle sleeve is connected by T-type screw with experiment casting ladle；After being additionally provided on the trailing flank of the experiment casting ladle
Upper T-slot and afterwards lower T-slot；It is installed with upper ear seat and lower ear respectively in the rear upper T-slot and afterwards outside lower T-slot
Seat, and the upper ear seat and lower ear base is connected by T-type screw with experiment casting ladle；The experiment casting ladle passes through fixation
Pin sleeve or upper removable pin axle sleeve or lower removable pin axle sleeve are connected with the revolution axis pin on crossbeam；In the experiment casting ladle
Equipped with temperature sensor, electric heater and electric heating temperature device；
The tilting device includes that rear column, upper telescopic rod and lower telescopic rod, the bottom of the rear column are fixedly mounted on
On pedestal, graduated scale is equipped on the leading flank of the rear column；It is stood with rear by hinge the rear end of the upper telescopic rod
Column is connected, and the front end of upper telescopic rod is connected by hinge with upper ear seat；The rear end of the lower telescopic rod by hinge with
Rear column is connected, and the front end of lower telescopic rod is connected by hinge with lower ear base；
Be equipped with sprue cup in the top center of the described simulation sandbox, set in the top front of the simulation sandbox there are two it is right
The open riser for claiming arrangement is equipped with experiment replaceable running gate system and casting mold in the simulation sandbox, is poured in described
Current meter is equipped in cup；
The measuring device includes measuring holder, high-speed camera and laser displacement sensor, the bottom of the measurement holder
Portion is fixedly mounted on by sliding block on pedestal, and can be moved forward and backward along pedestal, and locking screw is additionally provided in the bottom for measuring holder
Nail；The high-speed camera is mounted on the upper end for measuring holder, and passes through tilt adjustable section bearing phase between measurement holder
Connection；The laser displacement sensor is located at the lower section of high-speed camera, and the laser displacement sensor passes through its tail portion
T-type can lock-screw be mounted on measure holder on.
2. a kind of gravity casting according to claim 1 simulates testing stand, it is characterised in that：The shake table includes can
Telescopic outrigger, workbench and vibrating motor, there are four the telescopic legs, and is arranged symmetrically on pedestal, and described can
The bottom of telescopic outrigger is fixedly connected with pedestal by screw, is connected by spherical hinge between the top and workbench of telescopic legs
It connects；The vibrating motor has two, and is fixedly mounted on the bottom of workbench；It is equipped with and claims at the top of the workbench
Sensor is retransmitted, acceleration transducer is additionally provided with below workbench.
3. a kind of gravity casting according to claim 1 simulates testing stand, it is characterised in that：The simulation sandbox pours
Cup, open riser, running gate system and casting mold are made of clear perspex material or all-transparent acrylic material.
4. a kind of gravity casting according to claim 2 simulates testing stand, it is characterised in that：The axis of two vibrating motors
It is mutually parallel, and the specifications and models of two vibrating motors are identical.
5. a kind of gravity casting according to claim 1 simulates testing stand, it is characterised in that：The lifting gear, on
Telescopic rod and lower telescopic rod are using electric pushrod or hydraulic cylinder or cylinder.
6. a kind of gravity casting according to claim 2 simulates testing stand, it is characterised in that：The telescopic legs are adopted
With double acting hydraulic cylinder or double-acting cylinder.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710930756.XA CN107478800B (en) | 2017-10-09 | 2017-10-09 | Gravity casting simulates testing stand |
| PCT/CN2017/108817 WO2019071666A1 (en) | 2017-10-09 | 2017-10-31 | Gravity casting simulation test bench |
| GB1911055.0A GB2578945B (en) | 2017-10-09 | 2017-10-31 | Gravity casting simulation test bench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710930756.XA CN107478800B (en) | 2017-10-09 | 2017-10-09 | Gravity casting simulates testing stand |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107478800A CN107478800A (en) | 2017-12-15 |
| CN107478800B true CN107478800B (en) | 2018-07-31 |
Family
ID=60606216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710930756.XA Active CN107478800B (en) | 2017-10-09 | 2017-10-09 | Gravity casting simulates testing stand |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN107478800B (en) |
| GB (1) | GB2578945B (en) |
| WO (1) | WO2019071666A1 (en) |
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| CN112756566B (en) * | 2020-12-29 | 2022-03-01 | 广州市美开实业有限责任公司 | Aluminum alloy casting method |
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| CN115859755B (en) * | 2023-02-17 | 2023-05-26 | 中国空气动力研究与发展中心计算空气动力研究所 | Visualization method, device, equipment and medium for steady flow field vector data |
| CN117620146A (en) * | 2023-12-14 | 2024-03-01 | 浙江盛轩工贸有限公司 | Gravity casting device for aluminum piece and application method of gravity casting device |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2019071666A1 (en) | 2019-04-18 |
| CN107478800A (en) | 2017-12-15 |
| GB2578945A (en) | 2020-06-03 |
| GB2578945B (en) | 2022-01-19 |
| GB201911055D0 (en) | 2019-09-18 |
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