CN204154625U - A kind of device measuring granule materials coefficient of interal friction - Google Patents
A kind of device measuring granule materials coefficient of interal friction Download PDFInfo
- Publication number
- CN204154625U CN204154625U CN201420564617.1U CN201420564617U CN204154625U CN 204154625 U CN204154625 U CN 204154625U CN 201420564617 U CN201420564617 U CN 201420564617U CN 204154625 U CN204154625 U CN 204154625U
- Authority
- CN
- China
- Prior art keywords
- frame
- blanking frame
- material loading
- blanking
- stand
- 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.)
- Active
Links
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
Measure a device for granule materials coefficient of interal friction, comprise stand; Comprise the blanking frame be packed on stand; Comprise the material loading frame being supported on blanking frame upper end; The inner chamber of two material frames is vertically through, forms material and fills chamber; Comprise the binder cover plate and binder weight that are arranged on material loading arch; Comprise the pulley bracket be arranged on stand, pulley bracket is provided with leading block; Comprise stay cord, leading block walked around by stay cord, and one end is connected with the lateral wall of material loading frame, and the other end is hung with tractive weight; Comprise the retainer plate be arranged near pulley side on blanking frame lateral wall, its upper surface flushes with the upper surface of blanking frame, and its width is not less than the width of blanking frame.Adopt said determination device, material loading frame moves under the pulling force of tractive weight, and be subjected to displacement between blanking frame, achieve the relative motion of loading and unloading frame storeroom, the difference being in pulling force needed for the movement under fully loaded and zero load by two material frames measures the internal friction of storeroom, then according to friction force computing formula, the coefficient of interal friction of material can just be drawn fast.
Description
Technical field
The utility model relates to bed-grinding technical field, particularly a kind of device measuring granule materials coefficient of interal friction.
Background technology
Bed-grinding technology is grinding technology more advanced at present, and because its grinding mechanism is advanced, mill efficiency is high, and energy consumption is low and be widely used, and typical bed-grinding equipment has vertical roller grinder, roll squeezer, Conus betulinus etc.Material is squeezed in bed-grinding equipment, friction force is produced under the effect of extruding force, the size of friction force determines equipment and exerts oneself, and also affect the density of material bed and the stability of equipment operation, and the size that friction force produces depends on the coefficient of interal friction of material.The particle diameter, grain composition, particle shape, moisture etc. of different material are different, and the coefficient of interal friction that also result in material varies.Therefore, if can the objective and accurate coefficient of interal friction determining material, just can better judge the stability of material in bed-grinding equipment, can better this material of judgment device grinding time exert oneself, thus select the bed-grinding equipment of more appropriate size.
" in continuous conveying equipment bulk granular material behavioral definition, classification and test method thereof " that Machinery Industry Commission of country issues, give the device measuring static material external friction coefficient, the external friction coefficient of material and equipment room can be measured, and the intergranular coefficient of interal friction of material itself cannot be measured.
Summary of the invention
The utility model provides a kind of device rubbed in granule materials that measures for solving in known technology the technical matters that exists, and this apparatus structure is simple, easy to install, can repetitive operation use.
The technical scheme that the utility model is taked for the technical matters existed in solution known technology is:
Measure a device for granule materials coefficient of interal friction, it is characterized in that: comprise stand; Comprise the blanking frame be packed on stand, described blanking frame is square material frame, and its top is uncovered structure; Comprise the material loading frame being supported on blanking frame upper end, the physical dimension of material loading frame is consistent with the physical dimension of blanking frame; The top of material loading frame and bottom are uncovered structure, and the inner chamber of material loading frame is vertical through with blanking frame inner chamber, form material and fill chamber; Comprise the binder cover plate being arranged on material loading arch, binder cover plate is provided with binder weight; Comprise the pulley bracket be arranged near a lateral location on stand, pulley bracket is provided with leading block; Comprise stay cord, leading block walked around by stay cord, and its one end is connected with the lateral wall of material loading frame, and its other end is hung with tractive weight; Comprise the retainer plate be arranged near pulley side on blanking frame lateral wall, the upper surface of described retainer plate flushes with the upper surface of blanking frame, and the width of described retainer plate is not less than the width of blanking frame.
The technical scheme that the utility model can also be taked is:
Described binder weight is counterweight, and described tractive weight is the measuring cup of water filling.
The advantage that the utility model has and good effect are:
Adopt above-mentioned determinator, material loading frame moves under the pulling force of tractive weight, and be subjected to displacement between blanking frame, achieve the relative motion of loading and unloading frame storeroom, under being in fully loaded and zero load by two material frames, the difference of mobile required pulling force measures the internal friction of storeroom, then according to friction force computing formula, the coefficient of interal friction of material can just be drawn fast.This device have structure simple, easy to install, can repetitive operation use feature.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1, stand; 2, blanking frame; 3, material loading frame; 4, binder cover plate; 5, binder weight; 6, pulley bracket; 7, leading block; 8, stay cord; 9, tractive weight; 10, retainer plate.
Embodiment
For summary of the invention of the present utility model, Characteristic can be understood further, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
Refer to Fig. 1, a kind of device measuring granule materials coefficient of interal friction, be made up of following a few part:
Comprise stand 1, stand is fixed on basal plane.
Comprise the blanking frame 2 be packed on stand.Described blanking frame is square material frame, and namely blanking frame is made up of four sides, and uncovered structure is formed on its top.
Comprise the material loading frame 3 being supported on blanking frame upper end.The physical dimension of material loading frame is consistent with the physical dimension of blanking frame.Namely the length of material loading frame is equal with width with the length of blanking frame respectively with width, and like this, two material frames all align at length direction and Width.The top of material loading frame and bottom are uncovered structure, and the inner chamber of material loading frame is vertical through with blanking frame inner chamber, form material and fill chamber.
Comprise the binder cover plate 4 being arranged on material loading arch, binder cover plate is provided with binder weight 5.When being namely full of material in the inner chamber of two material frames, binder cover plate is pressed in the top of material, by binder weight, applies a downward pressure to material.
Comprise the pulley bracket 6 be arranged near a lateral location on stand, pulley bracket is provided with leading block 7.Concrete, pulley bracket upwards extends, and the upper surface of itself and stand is certain angle of inclination, and leading block is arranged on the upper end position of pulley bracket.
Comprise stay cord 8, leading block walked around by stay cord, and its one end is connected with the lateral wall of material loading frame, and its other end is hung with tractive weight 9.
Comprise the retainer plate 10 be arranged near pulley side on blanking frame lateral wall, the upper surface of described retainer plate flushes with the upper surface of blanking frame, and the width of described retainer plate is not less than the width of blanking frame.The effect of retainer plate is: when material loading frame does horizontal shift relative to blanking frame, all can hold material loading stably and to frame shift dynamic material out, avoid material.
In said structure, described binder weight preferably adopts counterweight, like this, directly can draw the weight of pressure weight, not need to weigh again; Described tractive weight preferably adopts the measuring cup of water filling, like this, increases the weight of tractive weight gradually by adding water in measuring cup gradually, the gravimetric value of dynamic tractive weight instantaneously so that quick acquisition is frameed shift relative to blanking at material loading frame.
The process using this device to carry out granule materials coefficient of interal friction mensuration is:
When not adding materials in upper and lower two material frames, when now expecting that frame is in light condition, in measuring cup, slowly inject water, when the water yield is abundant, material loading frame issues raw horizontal shift at measuring cup Action of Gravity Field, now weighs the general assembly (TW) P0 of measuring cup and water.
After filling full with substance in upper and lower two material frames, binder cover plate is pressed in the top of material, and counterweight is placed on binder cover plate, the general assembly (TW) of the material in material loading frame, binder cover plate and counterweight is N, now expect that frame is in full load condition, slowly injects water, when the water yield is abundant in measuring cup, material loading frame issues raw horizontal shift at measuring cup Action of Gravity Field, now weighs the general assembly (TW) P1 of measuring cup and water.
According to friction force computing formula, coefficient of interal friction μ=(the P1-P0)/N of material, in order to improve the representativeness of test, can repeatedly replication, then average.
Above-mentioned when two material frame inner stuffing material, allow material naturally fill, avoid external force to extrude, then strike off with scale.
To sum up, this patent provides a kind of device that can measure material coefficient of interal friction, and this apparatus structure is simple, easy to install, can repetitive operation; In addition, this device also has reasonable in design, simple possible, dismounting and easy to adjust and manufacture and maintenance cost cheap, there is the advantages such as huge economic benefit.
The above is only the preferred embodiment to this patent, not any pro forma restriction is done to this patent, every technical spirit according to this patent is to any simple modification made for any of the above embodiments, and equivalent variations and modification, all belong in the scope of the art of this patent scheme.
Claims (2)
1. measure a device for granule materials coefficient of interal friction, it is characterized in that: comprise stand; Comprise the blanking frame be packed on stand, described blanking frame is square material frame, and its top is uncovered structure; Comprise the material loading frame being supported on blanking frame upper end, the physical dimension of material loading frame is consistent with the physical dimension of blanking frame; The top of material loading frame and bottom are uncovered structure, and the inner chamber of material loading frame is vertical through with blanking frame inner chamber, form material and fill chamber; Comprise the binder cover plate being arranged on material loading arch, binder cover plate is provided with binder weight; Comprise the pulley bracket be arranged near a lateral location on stand, pulley bracket is provided with leading block; Comprise stay cord, leading block walked around by stay cord, and its one end is connected with the lateral wall of material loading frame, and its other end is hung with tractive weight; Comprise the retainer plate be arranged near pulley side on blanking frame lateral wall, the upper surface of described retainer plate flushes with the upper surface of blanking frame, and the width of described retainer plate is not less than the width of blanking frame.
2. the device of mensuration granule materials coefficient of interal friction according to claim 1, it is characterized in that: described binder weight is counterweight, described tractive weight is the measuring cup of water filling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420564617.1U CN204154625U (en) | 2014-09-28 | 2014-09-28 | A kind of device measuring granule materials coefficient of interal friction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420564617.1U CN204154625U (en) | 2014-09-28 | 2014-09-28 | A kind of device measuring granule materials coefficient of interal friction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204154625U true CN204154625U (en) | 2015-02-11 |
Family
ID=52512729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420564617.1U Active CN204154625U (en) | 2014-09-28 | 2014-09-28 | A kind of device measuring granule materials coefficient of interal friction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204154625U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105891011A (en) * | 2015-06-24 | 2016-08-24 | 中国石油大学(北京) | Device for measuring friction strength of rock under action of different fluids |
| CN107796288A (en) * | 2017-09-22 | 2018-03-13 | 浙江大学 | A kind of measure granular material internal friction angle and interface is quiet, simultaneous determination instrument of dynamic friction angle |
| CN109030345A (en) * | 2018-07-13 | 2018-12-18 | 中国葛洲坝集团国际工程有限公司 | A kind of face-plate of rockfill dam base surface restraint stress detection method |
| CN115876616A (en) * | 2023-03-03 | 2023-03-31 | 山西交通科学研究院集团有限公司 | Test device for testing mechanical behavior of road after repair through friction force and positive pressure |
-
2014
- 2014-09-28 CN CN201420564617.1U patent/CN204154625U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105891011A (en) * | 2015-06-24 | 2016-08-24 | 中国石油大学(北京) | Device for measuring friction strength of rock under action of different fluids |
| CN107796288A (en) * | 2017-09-22 | 2018-03-13 | 浙江大学 | A kind of measure granular material internal friction angle and interface is quiet, simultaneous determination instrument of dynamic friction angle |
| CN109030345A (en) * | 2018-07-13 | 2018-12-18 | 中国葛洲坝集团国际工程有限公司 | A kind of face-plate of rockfill dam base surface restraint stress detection method |
| CN115876616A (en) * | 2023-03-03 | 2023-03-31 | 山西交通科学研究院集团有限公司 | Test device for testing mechanical behavior of road after repair through friction force and positive pressure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204154625U (en) | A kind of device measuring granule materials coefficient of interal friction | |
| CN203127792U (en) | Metering device for powder and particles | |
| CN203164057U (en) | Test device for multidirectional loading of side slope in geotechnical engineering | |
| CN105952715B (en) | A kind of hydraulic cylinder friction testing device | |
| CN205506815U (en) | Nondestructive test equipment for circular rods and circular pipe metal materials | |
| CN209372035U (en) | A kind of measurer for thickness | |
| CN108732043B (en) | Deep rock mass creep impact test device capable of simulating impact disturbance | |
| CN203893972U (en) | Static particle pressure measuring device | |
| CN204101257U (en) | One determines angle multi-mode packing case dropping shock test unit | |
| CN203083484U (en) | Cylinder height measuring device | |
| CN203606011U (en) | Seat type single-belt variable-frequency speed regulation scale | |
| CN204882604U (en) | Novel intelligence material speed of suspension test bench | |
| CN104483207A (en) | Progressively-decreased direct shear testing device | |
| CN208297298U (en) | A kind of device of the irregular bulky grain granular media natural repose angle of experimental determination | |
| CN203385621U (en) | Large soil engineering triaxial creep test system | |
| CN202499483U (en) | Quantity metering device | |
| CN203565382U (en) | Steel ball detecting device | |
| CN102616526A (en) | Piece counting metering device | |
| CN208990975U (en) | A kind of pelletizing high-pressure roller mill chute material-level detecting device | |
| CN203772856U (en) | Model testing box with small side wall friction force | |
| CN211263458U (en) | Upward hole charging experimental device | |
| CN206848101U (en) | Simulate and detect the experimental provision of silo wall abrasion | |
| CN207226403U (en) | Draw ring divides loop device in a kind of ring storehouse | |
| CN207300480U (en) | A kind of measurement device of solid particle material to silo wall lateral pressure | |
| CN201999545U (en) | Cylindrical quantitative metering device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190328 Address after: Tianjin District of Beichen city in the 300400 major North Road No. 1 Co-patentee after: Tianjin Cement Industry Design & Research Institute Co., Ltd. Patentee after: Sinoma (Tianjin) powder technology equipment Co., Ltd. Address before: Tianjin District of Beichen city in the 300400 major North Road No. 1 Co-patentee before: Sinoma Technology & Equipment Group Co., Ltd. Patentee before: Sinoma (Tianjin) powder technology equipment Co., Ltd. |
|
| TR01 | Transfer of patent right |