CN2682407Y - Separator strength test apparatus - Google Patents
Separator strength test apparatus Download PDFInfo
- Publication number
- CN2682407Y CN2682407Y CN 200420017590 CN200420017590U CN2682407Y CN 2682407 Y CN2682407 Y CN 2682407Y CN 200420017590 CN200420017590 CN 200420017590 CN 200420017590 U CN200420017590 U CN 200420017590U CN 2682407 Y CN2682407 Y CN 2682407Y
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- filtering circuit
- loading system
- push
- amplifying circuit
- down head
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- Expired - Fee Related
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a particle strength testing device which relates to a mechanical testing device. The particle strength testing device is composed of a loading system, a testing system and a data acquiring system. The figure comprises a displacement sensor 1, a connecting ball head 2, a columnar connecting rod 3, a force sensor 4, an upper pressing head 5, a lower pressing head 6, a pressurizing piston 7, a main machine 8, a counter force frame 9, a sensor fixing device 10, a transverse beam 11, an amplifying circuit A 12, a filtering circuit A 13, an amplifying circuit B 14, a filtering circuit B 15, an analog to digital converter 16 and a computer 17. The utility model can test the stress strain degree for the particles of different particle diameters in radial load, records test data, and is particularly suitable for testing earth body particles. The testing method is simple, and the operation is convenient.
Description
Technical field:
The utility model relates to mechanical testing equipment, relates in particular to the test unit of granule strength.Be mainly used in the test of the granular soil body granule strength in geotechnological field.
Background technology:
Along with carrying out of extensive, ultra-large engineering construction, the stress that bears as the soil body of ground is more and more higher, and when its stress that is subjected to during greater than the intensity of soil body particle own, fragmentation will take place the particle of the soil body, thereby changes the macromechanics character of the soil body.Classical soil mechanics theory is to be based upon soil body particle not take place on the broken basis.In order to study the character of grain breakage, need study the intensity of soil body particle itself to the soil body under the influence of soil body macromechanics character and the grain breakage condition.Grain breakage is novel research branch in the geotechnological field.Generally use direct shear apparatus, soil test equipment such as triaxial apparatus, compressometer are studied the macromechanics character of soil body sample, and these equipment can only be used to test the macromechanics character of the soil body, the intensity that can't test soil body particle.At present also there is not to test the equipment of soil body granule strength.
Summary of the invention:
The utility model provides a kind of granule strength test unit.This device is made up of loading system, test macro and data acquisition system (DAS).Can test, write down the size of particle stress and strain when being subjected to radial load exactly, especially be fit to soil body granule strength is tested.
In order to achieve the above object, the utility model adopts following technical scheme:
A kind of granule strength test unit is made up of loading system, test macro and data acquisition system (DAS); Loading system adopts the loading system of existing triaxial apparatus, is made up of pressurizing piston, main frame, reaction frame and crossbeam; Test macro is made up of displacement transducer, connection bulb, column connecting rod, force transducer, seaming chuck, push-down head, sensor fastening device, push-down head is that variable cross section is cylindrical, be flat on the pressurizing piston of loading system, seaming chuck is that variable cross section is cylindrical, its upper end is an external thread, be connected with the internal thread of force transducer bottom, the internal thread on force transducer top is connected with the external thread of column connecting rod lower end, and the column small end links to each other with the crossbeam of loading system by connecting bulb; Displacement transducer is fixed in by sensor fastening device on the reaction frame of loading system, and its test contact contacts with annular surface on the push-down head chassis; Data acquisition system (DAS) is made up of amplifying circuit A, filtering circuit A, amplifying circuit B, filtering circuit B, A/D converter and computing machine; Amplifying circuit A input end is connected with force transducer, output terminal is connected with filtering circuit A, amplifying circuit B input end is connected with displacement transducer, and output terminal is connected with filtering circuit B, and filtering circuit A all is connected with computing machine by A/D converter with filtering circuit B output terminal.
The utility model has following technique effect: can test the ess-strain size of particle when being subjected to radial load of different-grain diameter, and record test data.Especially be fit to soil body particle test.Method of testing is simple, and is easy and simple to handle.
Description of drawings:
Fig. 1 is a structural representation of the present utility model.
Wherein: 1 is that displacement transducer, 2 is that connection bulb, 3 is that column connecting rod, 4 is that force transducer, 5 is that seaming chuck, 6 is that push-down head, 7 is that pressurizing piston, 8 is that main frame, 9 is that reaction frame, 10 is that sensor fastening device, 11 is that crossbeam, 12 is that amplifying circuit A, 13 is that filtering circuit A, 14 is that amplifying circuit B, 15 is that filtering circuit B, 16 is that A/D converter, 17 is a computing machine.
Fig. 2 is the test findings curve map of the utility model to diameter 2.1mm calcareous sand particle.
Embodiment:
Below in conjunction with accompanying drawing the utility model is further described.
As shown in Figure 1, a kind of granule strength test unit is made up of loading system, test macro and data acquisition system (DAS); Loading system adopts existing triaxial apparatus loading system, is made up of pressurizing piston 7, main frame 8, reaction frame 9 and crossbeam 11; Test macro is made up of displacement transducer 1, connection bulb 2, column connecting rod 3, force transducer 4, seaming chuck 5, push-down head 6, sensor fastening device 10, push-down head 6 is that variable cross section is cylindrical, be flat on the pressurizing piston 7 of loading system, the upper surface of push-down head 6 is through bakingout process, improving its hardness, and its surface is polished; Seaming chuck 5 is that variable cross section is cylindrical, its lower surface is through bakingout process, to improve its hardness, and its surface polished, its upper end is an external thread, be connected with the internal thread of force transducer 4 bottoms, the internal thread on force transducer 4 tops is connected with the external thread of column connecting rod 3 lower ends, column connecting rod 3 upper ends are connected on the crossbeam 11 of loading system by connecting bulb 2, displacement transducer 1 is fixed on the reaction frame 9 of loading system by sensor fastening device 10, its test contact contacts with annular surface on push-down head 6 chassis, and sensor fastening device 10 can be selected the magnetic force gauge stand for use; Data acquisition system (DAS) is made up of amplifying circuit A, filtering circuit A, amplifying circuit B, filtering circuit B, A/D converter and computing machine; Amplifying circuit A12 input end is connected with force transducer 4, output terminal is connected with filtering circuit A13, amplifying circuit B14 input end is connected with displacement transducer 1, and output terminal is connected with filtering circuit B15, and filtering circuit A13 all is connected with computing machine 17 by A/D converter 16 with filtering circuit B15.
Method with the utility model test soil body particle is as follows: regulate the position of push-down head 6 bases, make seaming chuck 5 and push-down head 6 deads in line; Tested particle sample is placed the center of workplace on the push-down head 6, regulate distance between seaming chuck 5 and the push-down head 6, make it be slightly larger than the diameter of particle sample to be measured by the position of regulating loading system pressurizing piston 7; Adjust bulb connection 2 and make the workplace keeping parallelism of two pressure heads up and down; Adjust the position of displacement transducer simultaneously, its test contact is contacted with annular surface on push-down head 6 chassis.The starting loading system, push-down head is moved up with certain speed, open data acquisition system (DAS) simultaneously, electric signal process by displacement transducer and force transducer output is amplified, filtering, A/D conversion back input computing machine, stress and displacement in the acquisition system record process of the test, until particle fragmentation taking place, closes loading system.Accompanying drawing 2 is the stress-strain diagram of 2.1mm calcareous sand particle for measured diameter.
Claims (1)
1, a kind of granule strength test unit is characterized in that, this device is made up of loading system, test macro and data acquisition system (DAS); Loading system adopts the triaxial apparatus loading system, is made up of pressurizing piston (7), main frame (8), reaction frame (9) and crossbeam (11); Test macro is made up of displacement transducer (1), connection bulb (2), column connecting rod (3), force transducer (4), seaming chuck (5), push-down head (6), sensor fastening device (10), push-down head (6) is that variable cross section is cylindrical, be flat on the pressurizing piston (7) of loading system, the upper surface of push-down head (6) is through bakingout process, improving its hardness, and its surface is polished; Seaming chuck (5) is that variable cross section is cylindrical, its lower surface is through bakingout process, to improve its hardness, and its surface polished, its upper end is an external thread, be connected with the internal thread of force transducer (4) bottom, the internal thread on force transducer (4) top is connected with the external thread of column connecting rod (3) lower end, column connecting rod (3) upper end is connected on the crossbeam (11) of loading system by connecting bulb (2), displacement transducer 1 is fixed on the reaction frame (9) of loading system by sensor fastening device (10), its test contact contacts with annular surface on push-down head (6) chassis, and sensor fastening device (10) can be selected the magnetic force gauge stand for use; Data acquisition system (DAS) is made up of amplifying circuit A (12), filtering circuit A (13), amplifying circuit B (14), filtering circuit B (15), A/D converter (16) and computing machine (17); Amplifying circuit A (12) input end is connected with force transducer (4), output terminal is connected with filtering circuit A (13), amplifying circuit B (14) input end is connected with displacement transducer (1), output terminal is connected with filtering circuit B (15), and filtering circuit A (13) all is connected with computing machine (17) by A/D converter (16) with filtering circuit B (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420017590 CN2682407Y (en) | 2004-03-31 | 2004-03-31 | Separator strength test apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420017590 CN2682407Y (en) | 2004-03-31 | 2004-03-31 | Separator strength test apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2682407Y true CN2682407Y (en) | 2005-03-02 |
Family
ID=34606550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420017590 Expired - Fee Related CN2682407Y (en) | 2004-03-31 | 2004-03-31 | Separator strength test apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2682407Y (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101344469B (en) * | 2008-05-14 | 2010-12-15 | 中国科学技术大学 | Particle sludge intensity measuring instrument and method |
| CN101393093B (en) * | 2007-09-19 | 2011-04-06 | 同济大学 | Cementing granule contact anti-shearing and torsion resistant test device |
| CN102252906A (en) * | 2011-06-13 | 2011-11-23 | 南京大学 | Clayey soil strain control type uniaxial extension meter |
| CN102620880A (en) * | 2012-03-31 | 2012-08-01 | 浙江理工大学 | Sensor fixing device for measuring unsteady force by utilizing shock waves to load and fix particle swarm |
| CN103940604A (en) * | 2014-05-07 | 2014-07-23 | 哈尔滨工业大学 | Computer programmed type aircraft static force loading test device and method |
| CN108106973A (en) * | 2017-12-18 | 2018-06-01 | 大连理工大学 | A kind of method for measuring saturation granule medium stress and displacement simultaneously based on transparent photoelastic material |
| CN110579416A (en) * | 2018-06-07 | 2019-12-17 | 南京农业大学 | Objective evaluation method for seed coat strength and seed hardness of vegetable soybeans |
| CN110726614A (en) * | 2019-10-23 | 2020-01-24 | 泰坦(天津)工业技术有限公司 | Carbon black particle strength testing system and carbon black particle strength testing method |
| CN113008674A (en) * | 2021-03-01 | 2021-06-22 | 浙江科技学院 | Rapid detection method for crushing of loaded sand particle aggregate |
| US11079308B2 (en) | 2017-10-09 | 2021-08-03 | Waters Technologies Corporation | Continuous determination of medium stiffness and load gain for adaptive actuator control |
| US11119015B2 (en) | 2017-10-09 | 2021-09-14 | Waters Technologies Corporation | Determination of dynamic parameters for adaptive actuator control |
| US11371923B2 (en) * | 2017-10-03 | 2022-06-28 | Waters Technologies Corporation | Automatic system compliance estimation and correction for mechanical testing systems |
-
2004
- 2004-03-31 CN CN 200420017590 patent/CN2682407Y/en not_active Expired - Fee Related
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101393093B (en) * | 2007-09-19 | 2011-04-06 | 同济大学 | Cementing granule contact anti-shearing and torsion resistant test device |
| CN101344469B (en) * | 2008-05-14 | 2010-12-15 | 中国科学技术大学 | Particle sludge intensity measuring instrument and method |
| CN102252906A (en) * | 2011-06-13 | 2011-11-23 | 南京大学 | Clayey soil strain control type uniaxial extension meter |
| CN102252906B (en) * | 2011-06-13 | 2013-07-24 | 南京大学 | Clayey soil strain control type uniaxial extension meter |
| CN102620880A (en) * | 2012-03-31 | 2012-08-01 | 浙江理工大学 | Sensor fixing device for measuring unsteady force by utilizing shock waves to load and fix particle swarm |
| CN102620880B (en) * | 2012-03-31 | 2013-11-06 | 浙江理工大学 | Sensor fixing device for measuring unsteady force by utilizing shock waves to load and fix particle swarm |
| CN103940604A (en) * | 2014-05-07 | 2014-07-23 | 哈尔滨工业大学 | Computer programmed type aircraft static force loading test device and method |
| CN103940604B (en) * | 2014-05-07 | 2016-03-16 | 哈尔滨工业大学 | Computer program controlled formula aircraft static loading test device and method |
| US11371923B2 (en) * | 2017-10-03 | 2022-06-28 | Waters Technologies Corporation | Automatic system compliance estimation and correction for mechanical testing systems |
| US11079308B2 (en) | 2017-10-09 | 2021-08-03 | Waters Technologies Corporation | Continuous determination of medium stiffness and load gain for adaptive actuator control |
| US11119015B2 (en) | 2017-10-09 | 2021-09-14 | Waters Technologies Corporation | Determination of dynamic parameters for adaptive actuator control |
| US11650141B2 (en) | 2017-10-09 | 2023-05-16 | Waters Technologies Corporation | Determination of dynamic parameters for adaptive actuator control |
| CN108106973A (en) * | 2017-12-18 | 2018-06-01 | 大连理工大学 | A kind of method for measuring saturation granule medium stress and displacement simultaneously based on transparent photoelastic material |
| CN110579416A (en) * | 2018-06-07 | 2019-12-17 | 南京农业大学 | Objective evaluation method for seed coat strength and seed hardness of vegetable soybeans |
| CN110726614A (en) * | 2019-10-23 | 2020-01-24 | 泰坦(天津)工业技术有限公司 | Carbon black particle strength testing system and carbon black particle strength testing method |
| CN113008674A (en) * | 2021-03-01 | 2021-06-22 | 浙江科技学院 | Rapid detection method for crushing of loaded sand particle aggregate |
| CN113008674B (en) * | 2021-03-01 | 2024-04-26 | 浙江科技学院 | Rapid detection method for broken sand particle aggregate after loading |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050302 Termination date: 20120331 |