CN101863075B - Sample preparation and demoulding combined instrument - Google Patents
Sample preparation and demoulding combined instrument Download PDFInfo
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- CN101863075B CN101863075B CN2010101849135A CN201010184913A CN101863075B CN 101863075 B CN101863075 B CN 101863075B CN 2010101849135 A CN2010101849135 A CN 2010101849135A CN 201010184913 A CN201010184913 A CN 201010184913A CN 101863075 B CN101863075 B CN 101863075B
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- integrated instrument
- sample preparing
- gear train
- lower platen
- demoulding
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Abstract
本发明公开了一种制样脱模联合仪，至少包括驱动机构、传动机构和底座，以及安装在底座上的盛料模具，盛料模具的上方和下方分别设有上压板和下压板，上压板和下压板均与传动机构相连。该仪器可以同时制的多个试件，实现双向竖直加压方式，不仅操作使用简单，具有一定的自动化程度，便于维护保养，还可制备出密度较大且密度、含水量均匀的土工试样，而且制样效率高。
The invention discloses a combined instrument for sample preparation and demoulding, which at least includes a driving mechanism, a transmission mechanism, a base, and a material holding mold installed on the base. Both the pressing plate and the lower pressing plate are connected with the transmission mechanism. The instrument can produce multiple test pieces at the same time and realize the two-way vertical pressure method. It is not only easy to operate and use, but also has a certain degree of automation and is easy to maintain. It can also prepare geotechnical test pieces with high density and uniform density and water content sample, and the sample preparation efficiency is high.
Description
Technical field
The present invention relates to a kind of sample preparing and demoulding integrated instrument, this instrument is a manipulated soil sample preparation instrument.
Background technology
Since modern age, soil mechanics proposed principle of effective stress from nineteen twenty-three K.Terzaghi, obtained significant progress.1963, Roscoe proposed famous Cambridge model to clay and has then pushed the research of soil mechanics to new climax, had also opened the gate of modern soil mechanics research simultaneously.The generation of soil mechanics, development are actually on the basis that is based upon test, and especially early stage shop experiment is that solid foundation has been established in the theoretical research of follow-up soil mechanics.And shop experiment at first must solve the sample preparation problem: density, the test specimen that water cut is even, smooth.Layering compacting process and unidirectional static pressure method because the soil sample stress is inhomogeneous, are said from root, can not make even soil sample.
The defective that existing method exists is summarized as follows: (1) density, water cut are inhomogeneous, out-of-flatness; (2) it is serious to hit real noise pollution, other people operate as normal of vibration effect; (3) can't automatic demoulding; (4) the sample preparation spended time is long, inefficiency; (5) manual work can't guarantee precision, causes the test result otherness very big; (6) can not guarantee the consistance of the mechanics index of physics of parallel test specimen; (7) automaticity is very low, relies on manual work fully; A kind of sample preparation of (8) one cover machines causes extreme waste; (9) after sample preparation finished, mechanics index of physics test forefathers were big for disturbance; (10) the test result comparability is poor, poor repeatability.These remain the difficult problem of a ubiquity, are badly in need of capturing.
Summary of the invention
For preparing the sample that meets the demands, the invention provides a kind of sample preparing and demoulding integrated instrument, a plurality of test specimens that this instrument can be made simultaneously; Realize two-way vertical pressuring method; Not only manipulate simply, have certain automaticity, be convenient to maintaining; Also can prepare density than big and density, the uniform geotechnological sample of water cut, and sample preparation efficient is high.
Realize that the technical scheme that goal of the invention adopted is a kind of sample preparing and demoulding integrated instrument; At least comprise driving mechanism, gear train and base; And be installed in the charge mould on the base; The above and below of charge mould is respectively equipped with top board and lower platen, and top board all links to each other with gear train with lower platen.
Said charge mould is two or more.The charge mould is installed on the base through anchor clamps.
Said anchor clamps comprise clamp body, screw mandrel, support member and handwheel, and an end of screw mandrel is connected with clamp body, and handwheel is installed on the other end of screw mandrel, and the screw mandrel middle part is set with support member.
The cross sectional shape of said top board and lower platen all is complementary with the hollow sectional shape of mould.
Be separately installed with the upper position sensor and the upper/lower positions sensor that detect its position on said top board and the lower platen.
Said upper and lower position sensor is equipped with the display that is used to show controlled variable through controller control on the controller.
Said gear train is mechanical transmission mechanism, Electrified Transmission mechanism or fluid gear train.
Can know by technique scheme; Sample preparing and demoulding integrated instrument provided by the invention is realized two-way vertical pressuring method through last press mechanism and press mechanism; The shape of top board and lower platen and the mold shape of hollow coupling; Thereby can prepare difform geotechnological sample, detect the position of going up press mechanism and press mechanism, therefore can control automatic demoulding through position transducer.
Sample preparing and demoulding integrated instrument provided by the invention has following characteristics:
(1) this instrument has adopted two-way mechanical type control mode; Make sample reach evenly stressed effect of both direction; Rather than the single load bearing mode that adopts in the classic method; Therefore can solve the ubiquitous non-uniformity problems of index such as test sample preparation density, water cut preferably, and test specimen out-of-flatness problem;
(2) preferably resolve scale charge problem, utilize this instrument can realize mass production, save time and manpower, raise the efficiency;
(3) solve release problems completely, avoided the later stage disturbance;
(4) noise-less pollution, friction can not influence other people operate as normal;
(5) mechanized guarantees precision, and the test result comparability is strong, favorable repeatability;
(6) can guarantee the consistance of the mechanics index of physics of parallel test specimen;
(7) controller is communicated with display, realizes the demonstration of each item state parameters such as test specimen presetting length, compaction force, amount of compaction (going up the pressurization distance of lower platen), compacting speed, dwell time, good alternating interface between man and computer will make the preparation of test specimen be more prone to;
(8) going up lower platen and charge mould can change at any time, and the cooperation external member can be made the test specimen of different size, shape etc.
Description of drawings
Fig. 1 is a structural representation of the present invention,
Fig. 2 is the A-A sectional view of Fig. 1.
Among the figure: 1. fuel tank, 2. fluid pressure line, 3. surplus valve, 4. three position four-way electromagnetic valve, 5. throttling valve, 6. two-bit triplet solenoid valve A, 7. two-bit triplet solenoid valve B; 8. 2/2-way solenoid valve, 10. accumulator, 11. pressure switches, 12. hydralic pressure gauges, 13. hydraulic pumps, 14. times hydraulic cylinders; 15. the upper/lower positions sensor, 16. lower platens, 17, clamp body, 18. charge moulds, 19. top boards; 20. upper position sensor, hydraulic cylinder on 21., 22. handwheels, 23. support members, 24. controllers, 25. screw mandrels.
Embodiment
As shown in Figure 1, this sample preparing and demoulding integrated instrument comprises the gear train of driving mechanism, drive mechanism at least; Base and be installed in the charge mould 18 on the base, the specification of charge mould 18 and shape can be changed according to demands of different at any time, preparation different size and difform test specimen; Like cylinder, cake, square column, square cake, hexagonal prismoid, anistree prism or the like, charge mould 18 can be for two or more, two or more charge mould 18 parallel being in juxtaposition; Step up and be installed on the base through anchor clamps; Anchor clamps comprise clamp body 17, screw mandrel 25, support member 23 and handwheel 22, and an end of screw mandrel 25 is connected with clamp body 17, and handwheel 22 is installed on the other end of screw mandrel 25; Screw mandrel 25 middle parts are set with support member 23, make clamp body 17 unclamp and step up through rotating handwheel 22.By shown in Figure 2, the above and below of charge mould 18 is respectively equipped with top board 19 and lower platen 16, and the cross sectional shape of top board 19 and lower platen 16 all is complementary with the hollow sectional shape of mould.Top board 19 all links to each other with gear train with lower platen 16, and gear train can be mechanical transmission mechanism, Electrified Transmission mechanism or fluid gear train.Gear train in the present embodiment is a hydraulic gear, and last hydraulic cylinder 21, hydraulic cylinder 14 is formed the driving mechanism that drives hydraulic gear with hydraulic pump 13 and fuel tank 1 down, and hydraulic pump 13 is connected with hydralic pressure gauge 12; Show the pressure size; In order to protect fluid pressure line 2, pressure switch 11 and accumulator 10 also are installed, in the system for control hydraulic circuit pressure size is provided with surplus valve 3; Flowing velocity for liquid in the control hydraulic circuit is provided with throttling valve 5.Be separately installed with the upper position sensor 20 and upper/lower positions sensor 15 that detect its position on top board 19 and the lower platen 16.The upper and lower position sensor is through controller 24 its work of control; The electric situation that gets through controller control three position four-way electromagnetic valve 4, two-bit triplet solenoid valve A6, two-bit triplet solenoid valve B7,2/2-way solenoid valve 8 makes lower platen 16 location and work; The state parameter of this instrument work all can show that the display of controlled variable controls and show by being used to of installing on the controller, and specifically comprises compaction force, amount of compaction, compacting speed, dwell time etc.
At the sample preparing and demoulding integrated instrument that uses the present invention to propose, at first opening power is opened hydraulic pump 13, parameters such as the compacting amount of feeding, compaction force size is set through controller 24.This moment, top board 19 was in the limes superiors position, and lower platen 16 is in the smallest limit position.
During the location; The orderly dead electricity that gets of controller 24 control electromagnetic valve; Lower platen 16 begins to move up, and position transducer detects the position of lower platen 16 simultaneously, gives controller 24 with detected signal feedback; Controller 24 judges according to the signal of sensor whether the plane overlaps with the mould lower plane on the lower platen, controls lower platen in view of the above and be to continue feeding or stop.Top board 19 does not also begin action.
A certain amount of material is packed in the mould.Then, the electric situation that gets of controlling three position four-way electromagnetic valves 4, two-bit triplet solenoid valve A6, two-bit triplet solenoid valve B7,2/2-way solenoid valve 8 through controller 24 makes top board 19 begin the location, and position fixing process is with lower platen 16.
After upper and lower pressing plate is had good positioning, begin while, constant speed, advance in opposite directions, parameters such as compaction force, amount of compaction, compacting speed, dwell time have been set when start.Concrete operations are through controller 24 control three position four-way electromagnetic valves 4, two-bit triplet solenoid valve A6, two-bit triplet solenoid valve B7,2/2-way solenoid valve 8; Surplus valve 3; Throttling valve 5 (the flowing velocity of liquid in the control hydraulic circuit; Control compacting speed indirectly) realize, concrete that dead electricity is seen table 1 in proper order.Be compacted to after the amount of setting, carry out pressurize a period of time, the controller control electromagnetic valve is pressed table 1 " pressurize " action, realizes pressurize a period of time.
Knockout course.Through each solenoid valve of controller control.At first, top board moves upward (rapid speed) to its upper limit position, lower platen 16 move up simultaneously (speed is slower); Reach its upper limit until top board; Lower platen 16 ejects mould fully with the test specimen of compacting, takes test specimen away, and concrete position probing is realized by sensor.
Reseting procedure.Through each solenoid valve of controller control, by table 1 action that " resets ".Lower platen 16 moves downward until its lower position.Each several part restPoses.
Power supply is turned off in shutdown.Unload lower platen and mould, clean.In order to getting into next operation.
Table 1 solenoid valve sequence of movement table
Claims (7)
1. sample preparing and demoulding integrated instrument; At least comprise driving mechanism, gear train and base; And be installed in the charge mould on the base; It is characterized in that: the upper and lower of charge mould correspondence respectively is provided with top board, lower platen, and top board all links to each other with gear train with lower platen, and the cross sectional shape of top board and lower platen all is complementary with the hollow sectional shape of mould; Be separately installed with the upper position sensor and the upper/lower positions sensor that detect its position on top board and the lower platen, the upper and lower position sensor is through controller control.
2. sample preparing and demoulding integrated instrument according to claim 1 is characterized in that: the charge mould is two or more.
3. sample preparing and demoulding integrated instrument according to claim 1 and 2, it is characterized in that: base is provided with anchor clamps, and the charge mould is installed on the base through anchor clamps.
4. sample preparing and demoulding integrated instrument according to claim 3 is characterized in that: anchor clamps comprise clamp body, screw mandrel, support member and handwheel, and an end of screw mandrel is connected with clamp body, and handwheel is installed on the other end of screw mandrel, and the screw mandrel middle part is set with support member.
5. sample preparing and demoulding integrated instrument according to claim 1 is characterized in that: the display that is used to show controlled variable is installed on the controller.
6. sample preparing and demoulding integrated instrument according to claim 1 is characterized in that: gear train is mechanical transmission mechanism, Electrified Transmission mechanism or fluid gear train.
7. sample preparing and demoulding integrated instrument according to claim 1 is characterized in that: driving mechanism is made up of upper and lower hydraulic cylinder, hydraulic pump and fuel tank, and gear train is a hydraulic gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101849135A CN101863075B (en) | 2010-05-21 | 2010-05-21 | Sample preparation and demoulding combined instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101849135A CN101863075B (en) | 2010-05-21 | 2010-05-21 | Sample preparation and demoulding combined instrument |
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| Publication Number | Publication Date |
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| CN101863075A CN101863075A (en) | 2010-10-20 |
| CN101863075B true CN101863075B (en) | 2012-02-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010101849135A Expired - Fee Related CN101863075B (en) | 2010-05-21 | 2010-05-21 | Sample preparation and demoulding combined instrument |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102476399B (en) * | 2010-11-29 | 2014-08-06 | 中交第一公路工程局有限公司 | Cover mould device with unconfined compression strength for inorganic binder and method thereof |
| CN104359710B (en) * | 2014-11-13 | 2017-04-05 | 东北大学 | A kind of automatic demoulding molten steel sampler and its using method |
| CN104786361B (en) * | 2015-04-16 | 2017-05-31 | 张历豪 | A kind of processing method of architectural prefab |
| CN105842032B (en) * | 2016-05-10 | 2019-03-05 | 广东工业大学 | A kind of soil sample molding and stripper apparatus |
| CN108978617B (en) * | 2018-07-23 | 2020-09-01 | 绍兴文理学院 | Parallel type intelligent pressurized triaxial sample preparation process |
| CN109238796B (en) * | 2018-07-23 | 2020-11-03 | 绍兴文理学院 | Two-way pressurized triaxial sample preparation device |
| CN112140293A (en) * | 2019-06-26 | 2020-12-29 | 湖南五新模板有限公司 | Concrete prefabricated part mold and demolding method thereof |
| CN110618005B (en) * | 2019-09-06 | 2022-04-29 | 山东科技大学 | Preparation device and preparation method for cylindrical standard specimen of similar simulated material |
| CN110567778B (en) * | 2019-10-08 | 2023-06-20 | 宁夏大学 | Standard remolded soil sample bidirectional sample pressing device and method |
| CN113686640B (en) * | 2021-09-03 | 2024-07-09 | 沈阳工业大学 | Mould making and demoulding integrated device |
Citations (4)
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|---|---|---|---|---|
| US6595068B2 (en) * | 2000-02-25 | 2003-07-22 | Thomas E. Brovold | Compact hollow cylinder tensile tester |
| CN101246097A (en) * | 2008-03-20 | 2008-08-20 | 广州市赛特检测有限公司 | Novel sampling machine |
| CN201397262Y (en) * | 2009-05-09 | 2010-02-03 | 袁中夏 | Geotechnical sample preparation instrument |
| CN101650271A (en) * | 2009-09-04 | 2010-02-17 | 中国地质大学（武汉） | Hand-operated type two-way sampling instrument |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3437400B2 (en) * | 1997-02-26 | 2003-08-18 | 日本電子株式会社 | Sample stage with controllable sample temperature |
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2010
- 2010-05-21 CN CN2010101849135A patent/CN101863075B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6595068B2 (en) * | 2000-02-25 | 2003-07-22 | Thomas E. Brovold | Compact hollow cylinder tensile tester |
| CN101246097A (en) * | 2008-03-20 | 2008-08-20 | 广州市赛特检测有限公司 | Novel sampling machine |
| CN201397262Y (en) * | 2009-05-09 | 2010-02-03 | 袁中夏 | Geotechnical sample preparation instrument |
| CN101650271A (en) * | 2009-09-04 | 2010-02-17 | 中国地质大学（武汉） | Hand-operated type two-way sampling instrument |
Non-Patent Citations (2)
| Title |
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| 杨少丽等.改进的室内粉土制样技术.《岩土工程学报》.2000,第22 卷(第3期), * |
| 赵振勇等.重塑土简易制样技术及工程应用.《广东公路交通》.2006,(第1期), * |
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| CN101863075A (en) | 2010-10-20 |
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Granted publication date: 20120229 Termination date: 20120521 |