CN202033142U - Test device for measuring granular material flowing pressure - Google Patents
Test device for measuring granular material flowing pressure Download PDFInfo
- Publication number
- CN202033142U CN202033142U CN2011200520830U CN201120052083U CN202033142U CN 202033142 U CN202033142 U CN 202033142U CN 2011200520830 U CN2011200520830 U CN 2011200520830U CN 201120052083 U CN201120052083 U CN 201120052083U CN 202033142 U CN202033142 U CN 202033142U
- Authority
- CN
- China
- Prior art keywords
- bearing plate
- anchor clamps
- material flowing
- briquetting
- cylindrical
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The present utility model discloses a test device for measuring granular material flowing pressure. The test device comprises a clamp (1), a lower bearing plate (2), press blocks (4), an upper bearing plate (5) and pressure sensors (6). By adopting the device, during the flowing and destroying process of the granular materials under the load effect, the whole stress and the displacement change situation of the materials, and the stress change situation of certain area on the bottom of the granular materials can be accurately measured.
Description
Technical field
The test unit that relate to the utility model stress of discrete material system material monolithic in load action current downflow and shattering process and a certain regional stress situation of change of change in displacement situation and discrete material bottom detect, and can obtain yardstick distribution situation after the discrete material fragmentation by screening plant.
Background technology
In the experimental study that prose style free from parallelism particle contact force detects, contact detection method commonly used at present mainly comprises scales/electronic balance weighing method and transfer paper impression method.
The scales/electronic balance weighing method is to utilize probe contact bottom layer particle, determines the pressure of particle to bottom by the reading of electronic balance, and parallel traveling probe can obtain the pressure size of each particle of bottom to the bottom surface.Though the precision of electronic balance is greatly improved, by needing the mobile device position in the measuring process, inevitably the bottom particle can produce friction with surface of contact, thereby causes the redistribution of granule interior power, influences testing result.
The transfer paper indentation method is exactly to spread colour developing sensitive transfer paper and blank sheet of paper between particle bottom and supporting surface respectively, under external force, the bottom particle is by extruding transfer paper, and the impression that formation varies in size and shade differs on blank sheet of paper can determine to contact deformation and normal force size by demarcating.But because the sensitivity of transfer paper is limited, hour is difficult in and stays clearly vestige on the blank sheet of paper when particle is stressed, so only be subjected under the situation of big external force effect at granular system, this method is energy measurement contact force.
In addition, in load action current downflow and destructive process, utilize above-mentioned two kinds of methods, can't measure certain regional stress situation of change of granular system bottom in the discrete material system.
The utility model content
The technical matters that the utility model solves provide a kind of simple in structure, easy to use, cost is low and can be reusable, has broken through the experimental provision that the circumscribed discrete material flowing pressure of traditional measurement method is measured.
In order to solve the problems of the technologies described above, a kind of test unit of measuring the discrete material flowing pressure of the utility model, comprise anchor clamps, following bearing plate, briquetting, go up bearing plate and pressure transducer, described anchor clamps integral body is cylindrical, its the first half inner diameter is greater than the latter half inner diameter, and anchor clamps barrel bottom symmetry has the identical through hole of size; Described pressure transducer is positioned at the bottom of anchor clamps, the connection jaws of this pressure transducer is corresponding with the position of through hole, following bearing plate is fixed in the anchor clamps, have two cylindrical holes that size is identical on its diametric(al), these two through holes are about the center of circle symmetry of following bearing plate, its inside is provided with briquetting respectively, and insert in the pressure transducer slot bottom of this briquetting; Described upward bearing plate is positioned at the first half of anchor clamps
The utility model further improves, and described anchor clamps are steel material, and its outer wall symmetria bilateralis is provided with handle;
The utility model further improves, and described briquetting comprises two cylindrical blooms, and its top bloom diameter is greater than the diameter of bottom bloom;
The utility model further improves, and the described bearing plate of going up comprises two parts up and down, and its top is divided into the screwed body of bolt in bottom, and the bottom is divided into the cylindrical bloom that the center is provided with threaded hole.
The beneficial effects of the utility model are: apparatus structure is simple, easy to use, cost is low, and can repeated application, broken through the limitation of traditional measurement method, can accurately measure discrete material in load action current downflow and destructive process, a certain regional stress situation of change of the stress of material monolithic and change in displacement situation and discrete material bottom.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is further described;
Fig. 1 is the utility model cut-open view
Fig. 2 is a clamp structure synoptic diagram in the utility model
Fig. 3 goes up the bearing plate structural representation in the utility model
Fig. 4 is a following bearing plate structural representation in the utility model
Fig. 5 is a briquette structure synoptic diagram in the utility model
Label declaration in the accompanying drawing: bearing plate, 6 pressure transducers on 1 anchor clamps, 2 times bearing plates, 3 through holes, 4 briquettings, 5.
Embodiment
As shown in Figure 1, a kind of test unit of measuring the discrete material flowing pressure of the utility model comprises anchor clamps 1, following bearing plate 2, through hole 3, briquetting 4, last bearing plate 5, pressure transducer 6, anchor clamps 1 integral body is cylindrical, and its first half inner diameter is greater than the latter half inner diameter, and anchor clamps 1 barrel bottom symmetry has the identical through hole 3 of size; Pressure transducer 6 is positioned at the bottom of anchor clamps 1, the connection jaws of this pressure transducer 6 is corresponding with the position of through hole 3, following bearing plate 2 is fixed in the anchor clamps 1, have two cylindrical holes that size is identical on its diametric(al), these two through holes are about the center of circle symmetry of following bearing plate 2, its inside is provided with briquetting 4 respectively, and insert in pressure transducer 6 slots bottom of this briquetting 4; Last bearing plate 5 is positioned at the first half of anchor clamps 1.
As shown in Figure 2, anchor clamps 1 are that a steel does not have end uncovered column barrel, and the first half inner diameter is arranged with two through holes 3 greater than the latter half inner diameter in the latter half.
As shown in Figure 3, last bearing plate 5 comprises two parts up and down, and its top is divided into the screwed body of bolt in bottom, and the bottom is divided into the cylindrical bloom that the center is provided with threaded hole.
As shown in Figure 4, following bearing plate 2 is a cylindrical bloom, has identical these two through holes of cylindrical hole of two sizes about the center of circle symmetry of bearing plate 2 down in its diametric(al).
As shown in Figure 5, briquetting 4 comprises two cylindrical blooms, and its top bloom diameter is greater than the diameter of bottom bloom.
During use, at first will descend bearing plate 2 to be fixed in the anchor clamps 1, pressure transducer 6 faces down the through hole of bearing plate 2, be positioned over down bearing plate 2 belows, the data line connection jaws of pressure transducer 6 is corresponding with through hole 3, data line is drawn by through hole 3, be connected with the external data receiving equipment, then briquetting 4 the first half are put into down in the through hole of bearing plate 2, the latter half is inserted pressure transducer 6 slots, pour discrete material into anchor clamps 1, body of bolt by last bearing plate 5 will descend bearing plate 2 to be placed on the discrete material top stably, take off the body of bolt of bearing plate 5, by pressing machine to last bearing plate 5 load applications, the record pressure sensor data, after the off-test, body of bolt and last bearing plate 5 are connected and fixed, can conveniently take out bearing plate 5, at last the discrete material after the fragmentation is taken out, can obtain the Size Distribution situation by screening plant.
Device of the present utility model can also have multiple conversion and change shape, is not limited in the concrete structure of above-mentioned embodiment, and protection domain of the present utility model should comprise the conspicuous conversion of those those of ordinary skills or substitute and change shape.
Claims (4)
1. test unit of measuring the discrete material flowing pressure, it is characterized in that: comprise anchor clamps (1), following bearing plate (2), briquetting (4), go up bearing plate (5) and pressure transducer (6), described anchor clamps (1) integral body is cylindrical, its the first half inner diameter is greater than the latter half inner diameter, and anchor clamps (1) barrel bottom symmetry has the identical through hole (3) of size; Described pressure transducer (6) is positioned at the bottom of anchor clamps (1), and the connection jaws of this pressure transducer (6) is corresponding with the position of through hole (3); Following bearing plate (2) is fixed in the anchor clamps (1), have two cylindrical holes that size is identical on its diametric(al), these two through holes are about the center of circle symmetry of following bearing plate (2), and its inside is provided with briquetting (4) respectively, and insert in pressure transducer (6) slot bottom of this briquetting (4); Described upward bearing plate (5) is positioned at the first half of anchor clamps (1).
2. the test unit of measurement discrete material flowing pressure according to claim 1 is characterized in that: described anchor clamps (1) are rigid material, and its outer wall symmetria bilateralis is provided with handle.
3. the test unit of measurement discrete material flowing pressure according to claim 1 is characterized in that: described briquetting (4) comprises two cylindrical blooms, and its top bloom diameter is greater than the diameter of bottom bloom.
4. the test unit of measurement discrete material flowing pressure according to claim 1, it is characterized in that: the described bearing plate (5) of going up comprises two parts up and down, its top is divided into the screwed body of bolt in bottom, and the bottom is divided into the cylindrical bloom that the center is provided with threaded hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200520830U CN202033142U (en) | 2011-03-02 | 2011-03-02 | Test device for measuring granular material flowing pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200520830U CN202033142U (en) | 2011-03-02 | 2011-03-02 | Test device for measuring granular material flowing pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202033142U true CN202033142U (en) | 2011-11-09 |
Family
ID=44895436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200520830U Expired - Fee Related CN202033142U (en) | 2011-03-02 | 2011-03-02 | Test device for measuring granular material flowing pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202033142U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106940231A (en) * | 2017-04-09 | 2017-07-11 | 河南工业大学 | A kind of test method and device for measuring silo bulk material pressure and sidewall friction power |
| CN108398322A (en) * | 2018-01-30 | 2018-08-14 | 南京理工大学 | The contact force measurement experiment device and its experimental method of granular materials pressurization experiment |
-
2011
- 2011-03-02 CN CN2011200520830U patent/CN202033142U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106940231A (en) * | 2017-04-09 | 2017-07-11 | 河南工业大学 | A kind of test method and device for measuring silo bulk material pressure and sidewall friction power |
| CN106940231B (en) * | 2017-04-09 | 2023-12-15 | 河南工业大学 | Test method and device for measuring silo bulk material pressure and sidewall friction force |
| CN108398322A (en) * | 2018-01-30 | 2018-08-14 | 南京理工大学 | The contact force measurement experiment device and its experimental method of granular materials pressurization experiment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106248263A (en) | The contact force experiment with measuring device of a kind of granular materials riding chain structure and using method | |
| CN101620043B (en) | Strain test device for tension-torsion multi-shaft fatigue test under corrosion environment | |
| CN201828362U (en) | Radial force measuring instrument | |
| CN203949656U (en) | A kind of cylinder specimen radial deformation measurement mechanism | |
| CN201075044Y (en) | Access type pressure transducer | |
| CN202033142U (en) | Test device for measuring granular material flowing pressure | |
| CN203687865U (en) | Radial displacement measuring device used for cylindrical standard rock specimen | |
| CN203350129U (en) | Polymer environment stress cracking experiment combined device | |
| CN203929593U (en) | A kind of high-temperature high-pressure apparatus material corrosion comprehensive study experiment table reactor | |
| CN102243058A (en) | Calibration device and calibration method for sensitivity coefficient of strain transducer | |
| CN106017625A (en) | Method for detecting quantity of grain in grain bin, and pressure sensor | |
| CN201697739U (en) | Guide rail type detector for measuring screw bolt pretightening force | |
| CN201611292U (en) | Yarn tension measurement apparatus | |
| CN103852200A (en) | Solid preparation swelling pressure determination device and method | |
| CN206876287U (en) | A kind of pressure and weighting transducers | |
| CN101216456B (en) | Condom pin hole electronic inspection instrument capable of automatically judging pin hole position | |
| CN202974770U (en) | Young modulus measurer | |
| CN109556507A (en) | A kind of lightweight stamping die self-operated measuring unit | |
| CN102914469B (en) | Bedded Rocks longitudinal force applies and detection method | |
| CN205015229U (en) | Removable formula compression test machine | |
| CN202092568U (en) | Testing device for testing step thickness and excircle diameter of cylinder sleeve | |
| CN203376211U (en) | Weight-carrying performance detector for paper bags | |
| CN204963965U (en) | Electronic scale | |
| CN201828332U (en) | Device for detecting sensor | |
| CN102768010B (en) | Bidirectional strain sensor device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111109 Termination date: 20140302 |