CN112611679A - But panorama measurement's well granule material angle of repose apparatus - Google Patents
But panorama measurement's well granule material angle of repose apparatus Download PDFInfo
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- CN112611679A CN112611679A CN202110025981.5A CN202110025981A CN112611679A CN 112611679 A CN112611679 A CN 112611679A CN 202110025981 A CN202110025981 A CN 202110025981A CN 112611679 A CN112611679 A CN 112611679A
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- 238000005259 measurement Methods 0.000 title claims abstract description 19
- 239000008187 granular material Substances 0.000 title claims description 26
- 239000000463 material Substances 0.000 title abstract description 17
- 238000007789 sealing Methods 0.000 claims abstract description 27
- 239000004744 fabric Substances 0.000 claims description 6
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 3
- 239000008188 pellet Substances 0.000 claims 3
- 238000007599 discharging Methods 0.000 claims 2
- 239000002245 particle Substances 0.000 abstract description 50
- 210000000988 bone and bone Anatomy 0.000 abstract description 21
- 238000003780 insertion Methods 0.000 abstract description 8
- 230000037431 insertion Effects 0.000 abstract description 8
- 238000002474 experimental method Methods 0.000 description 6
- 230000008859 change Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 239000004575 stone Substances 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000013590 bulk material Substances 0.000 description 1
- 239000011362 coarse particle Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N11/00—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/26—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes
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- General Health & Medical Sciences (AREA)
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- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention discloses a medium particle repose angle measuring instrument capable of panoramic measurement, which comprises a bone material barrel, a movable support frame, a fixed support frame, a laser emitter, a measuring plate and a panoramic shooting frame, wherein a feed inlet is arranged at the top of the bone material barrel, a discharge outlet is arranged at the bottom of the bone material barrel, a sealing insertion plate is arranged at the bottom of the bone material barrel, a camera fixing groove is arranged at the bottom of the sealing insertion plate, the bone material barrel is arranged in the middle of the movable support frame, the movable support frame is arranged on the fixed support frame and is locked through a first locking structure, the laser emitter is arranged on the fixed support frame and is locked through a second locking structure, the measuring plate is arranged below the bone material barrel, the panoramic shooting frame comprises an annular track and a plurality of straight tracks, a plurality of camera bayonets are arranged on the annular track and the straight tracks, the falling height and the falling mode can be, and the average repose angle is measured to obtain a repose angle with more authenticity, representativeness and accuracy.
Description
Technical Field
The invention relates to the technical field of repose angle measuring devices, in particular to a medium particle repose angle measuring instrument capable of performing panoramic measurement.
Background
The repose angle is the maximum included angle between the free stacking surface and the horizontal plane when the bulk material is stacked under the action of self weight and is in a limit equilibrium state. The angle of repose is an important index for studying the physical and mechanical properties of bulk materials and is also used for evaluating the stability of natural deposits. The angle of repose is an external manifestation of the internal friction angle of the particulate, which directly reflects the magnitude of the frictional force of the particulate or the flowability of the particulate mass. The smaller the angle of repose, the smaller the friction force and the better the flowability. In the railway ballast bottom crushed stone, the repose angle can reflect the physical and mechanical properties of bottom ballast particles, so that the grading parameters of the bottom ballast are optimized by utilizing a repose angle experiment. Therefore, in order to make the repose angle measurement more accurate and convenient, when the repose angle of the bottom ballast particles is measured, more advanced requirements on the functionality and operability of the repose angle measuring instrument are required.
The existing repose angle measuring instrument is mostly used for measuring repose angles of fine powder materials and coarse particles, a device for measuring the repose angle of medium-particle particles such as bottom ballast particles used by ballast tracks is few, and when the grading of the bottom ballast particles is optimized and the physical and mechanical properties of the bottom ballast particles are researched, a fixed hopper method is often adopted, and analysis is carried out by measuring the repose angles under different grading parameters. However, when the bottom ballast repose angle is measured, considering that the particle size of bottom ballast particles is mostly 1-25 mm and a small amount of particles smaller than 1mm are contained, the existing experimental device cannot meet the requirement on the accuracy of the particle repose angle under the particle size; and because the numerical values of the repose angles measured in different directions are different, the existing measuring instrument cannot perform full view measurement on the repose angles in multiple directions, and the average value of the repose angles calculated in the same group of experiments is lack of representativeness, so that the measured repose angles have larger errors.
Disclosure of Invention
In view of the defects of the prior art, the invention aims to provide a medium particle repose angle determinator capable of panoramic measurement.
In order to solve the technical problems, the invention adopts the technical scheme that:
the utility model provides a but panorama measurement's well grain material angle of repose apparatus, includes bone feed cylinder, movable support frame, fixed stay frame, laser emitter, measuring board and panorama shooting frame, bone feed cylinder top is equipped with the feed inlet and the bottom is equipped with the discharge gate, bone feed cylinder bottom is equipped with detachable and is used for sealing the sealing picture peg of discharge gate, sealing picture peg bottom is equipped with the camera fixed slot, bone feed cylinder medial surface is equipped with interior scale mark, and the lateral surface is equipped with outer scale mark, movable support frame is "field" font frame construction, bone feed cylinder detachable installs in movable stay frame middle part, fixed stay frame includes the support column that four vertical directions set up, 4 angles of movable stay frame are established respectively through first lantern ring cover 4 on the support column, first lantern ring can follow the support column reciprocates and locks through first locking structure, 4 be equipped with 4 baffles between the support column, each the baffle card is established at adjacent two between the support column, laser emitter installs one the support column, laser emitter can follow the support column reciprocates and locks through second locking structure, it establishes to measure the board bone feed cylinder below and establishes 4 in the middle of the baffle, panorama shooting frame includes circular orbit and a plurality of straight track, circular orbit establishes the fix support frame outside, a plurality of straight track evenly distributed is in circular orbit with between the fix support frame, circular orbit and a plurality of all be equipped with a plurality of camera bayonet sockets on the straight track.
Further, the aggregate barrel comprises an upper barrel body and a plurality of lower barrel bodies, the upper barrel body is of a hollow cylindrical structure, a feed inlet is formed in the top of the upper barrel body, the lower barrel bodies are of a hollow inverted cone structure, the lower barrel bodies are provided with different heights or discharge outlets in different shapes respectively, and the lower barrel bodies can be detachably mounted at the bottom of the upper barrel body respectively.
Further, a slot component is arranged at the bottom of the lower barrel and comprises two slots which are oppositely arranged, and the sealing plugboard can be inserted into the two slots to seal the discharge hole.
Furthermore, the sealing plugboard is provided with bulges on both sides.
Furthermore, the bottom of the supporting column is provided with a clamping groove, and two sides of the baffle are respectively clamped in the two clamping grooves.
Further, the baffle is a transparent acrylic plate.
Further, the measuring plates are provided in plurality, and the plurality of measuring plates have different friction coefficients respectively.
Further, a plurality of evenly distributed first fixed orificess are clamped along the vertical direction on the supporting column, a second fixed orifice is arranged on the first collar, the first locking structure is a locking column, and the first collar is locked by the locking column penetrating through the second fixed orifice and the first fixed orifice.
Further, the second locking structure is a locking screw.
Furthermore, but panorama measurement's well granule angle of repose apparatus still includes spirit level and background cloth, through the spirit level is adjusted and can be adjusted aggregate section of thick bamboo level, and after the well granule falls down and forms the granule heap, place the camera in one when shooing the camera bayonet socket, the background cloth cover is placed to the camera lens of camera and is established in the granule heap outside.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. the medium particle repose angle tester capable of panoramic measurement can shoot the state of a particle pile from multiple angle panoramas, and can flexibly change the falling height of medium particles by adjusting the height of the movable support frame and the position of the bone charging barrel, so that the repose angle data measured by an experiment has higher accuracy and representativeness, the discreteness and errors of a single angle measurement result are reduced, the flexibility and repeatability of the experiment are improved, and the operation is simple and rapid.
2. According to the medium particle repose angle tester capable of panoramic measurement, disclosed by the invention, the particle falling opening can be flexibly changed and the falling mode can be changed by replacing the lower cylinders with different heights or the lower cylinders with different shapes of discharge ports, so that the research on influence factors of the repose angle is promoted.
3. The medium particle material repose angle tester capable of panoramic measurement can replace measuring plates with different friction coefficients, and promotes the research of influence factors of the repose angle.
Drawings
Fig. 1 is a front view of a panorama-measurable medium particle repose angle measuring apparatus of the present invention.
Fig. 2 is a side view of the panorama measurable medium particle repose angle meter of the present invention.
Fig. 3 is a top view of the panorama measurable medium particle repose angle meter of the present invention.
Fig. 4 is a perspective view of a panorama measurable medium particle repose angle meter of the present invention.
Fig. 5 is a perspective view of the upper cylinder and the movable support bracket of the present invention.
Fig. 6 is a front view of the lower barrel and socket member of the present invention.
Fig. 7 is a front view of the closure panel of the present invention.
Fig. 8 is a bottom view of the closure insert of the present invention.
Wherein: 10. a medium particle repose angle determinator capable of panoramic measurement; 20. a bone charging barrel; 21. an upper cylinder body; 22. a lower cylinder body; 23. a socket member; 30. sealing and inserting plates; 31. a protrusion; 32. a camera fixing groove; 40. a support frame; 41. a movable support frame; 41a, a first collar; 41b, a horizontal rectangular beam; 41c, a ring beam; 41d, short beam; 42. fixing a support frame; 42a, a rectangular frame support; 42b, a support column; 50. a baffle plate; 51. a second card slot; 60. a panoramic shooting frame; 61. an annular track; 62. a straight track; 70. a laser transmitter; 71. a second collar; 80. the plate was measured.
Detailed Description
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
Referring to fig. 1 to 8, a medium particle repose angle measuring instrument 10 capable of panoramic measurement includes a bone material barrel 20, a movable support 41, a fixed support 42, a laser emitter 70, a measuring plate 80, and a panorama shooting frame 60.
Referring to fig. 1 and 8, an aggregate cylinder 20 is a cavity structure which is through up and down, the aggregate cylinder 20 is used for containing aggregate, a feed inlet is formed in the top of the aggregate cylinder 20, a discharge outlet is formed in the bottom of the aggregate cylinder 20, a detachable sealing insertion plate 30 used for sealing the discharge outlet is arranged in the bottom of the aggregate cylinder 20, a camera fixing groove 32 is formed in the bottom of the sealing insertion plate 30, a camera is fixed in the camera fixing groove 32 and used for fixing a camera, the camera fixed in the camera fixing groove 32 shoots a particle pile formed after the particle pile falls down, the pile forming diameter D of the particle pile is obtained, inner scale lines are arranged on the inner side surface of. The volume of aggregate in the bone cartridge 20 is adjusted by the inner graduation marks on the inside surface. The height of the bone material cylinder 20 is adjusted through the outer scale lines on the outer side surface of the bone material cylinder 20, and then the falling height of the medium granules is finely adjusted.
Referring to fig. 5, the movable support 41 is used to support the bone barrel 20, the movable support 41 has a frame structure of a "tian" shape, and the movable support 41 includes a first collar 41a and a horizontal rectangular beam 41b connecting adjacent first collars 41 a.
The middle part of the movable support frame 41 is provided with a ring beam 41c, the ring beam 41c is connected with the movable support frame 41 through 4 short beams 41d, a plurality of bolt holes are distributed in the middle part of the movable support frame 41 along the circumferential direction of the ring beam 41c, the aggregate barrel 20 can be pressed in the ring beam 41c through bolts penetrating through the bolt holes, and therefore the aggregate barrel 20 can be detachably mounted on the movable support frame 41. The connections between the various components of the movable support 41 are all welded.
Referring to fig. 2, the movable support frame 41 is detachably mounted on the fixed support frame 42 and is locked by a first locking structure, specifically, the fixed support frame 42 includes 4 support columns 42b arranged in the vertical direction, 4 corners of the movable support frame 41 are respectively sleeved on the 4 support columns 42b by first lantern rings 41a, the first lantern rings 41a can move up and down along the support columns 42b and are locked by the first locking structure, so that the movable support frame 41 moves up and down along the support columns 42b to a proper height and is locked by the first locking structure, and further the falling height of the granules in the large adjustment is increased.
Referring to fig. 2 and 4, 4 baffles 50 are arranged between 4 supporting columns 42b, each baffle 50 is clamped between two adjacent supporting columns 42b, and the baffles 50 are arranged to prevent the sealing insertion plate 30 from being taken down, so that broken stone splashing possibly caused by falling particles is reduced when the particles fall.
Referring to fig. 4, the fixing support frame 42 further includes a rectangular frame support 42a, and 4 support columns 42b vertically disposed are respectively welded to 4 corners of the rectangular frame. The fixed support frame 42 and the movable support frame 41 constitute a support frame 40.
Referring to fig. 4, the measuring plate 80 is disposed under the bone cartridge 20 and between the 4 baffles 50.
Referring to fig. 2, the laser transmitter 70 is mounted on the fixed support frame 42 and locked by the second locking structure, and particularly, the laser transmitter 70 is mounted on the supporting column 42b by the second collar 71, so that the laser transmitter 70 can move up and down along the supporting column 42b and be locked by the second locking structure, and by providing the laser transmitter 70, it is used to measure the falling and stacking height H of the medium granules. The second locking structure is a locking screw.
The specific use method is that the top position of the particle pile is found through the laser emitter 70, and then the distance between the emitting end of the laser emitter 70 and the measuring plate 80 is measured to be the falling and stacking height H of the medium particles.
Referring to fig. 3, the panorama shooting rack 60 includes an annular rail 61 and a plurality of straight rails 62, the annular rail 61 is disposed outside the fixing support frame 42, the plurality of straight rails 62 are uniformly distributed between the annular rail 61 and the fixing support frame 42, and the annular rail 61 and the plurality of straight rails 62 are provided with a plurality of camera bayonets. The camera can be fixed through the camera bayonet, and images of different directions of the particle pile are obtained.
In the embodiment of the invention, the panoramic shooting frame 60 comprises an annular track 61 and 4 straight tracks 62, the straight tracks 62 are arranged between the rectangular frame support 42a and the annular track 61, the straight tracks 62 are connected with the rectangular frame support 42a through bolts, 12 camera bayonets are uniformly distributed on the annular track 61, and 2 camera bayonets are uniformly distributed on each straight track 62.
In the embodiment of the present invention, the length of each straight rail 62 is 500mm, and the diameter of the circular rail 61 is equal to the sum of the two straight rails 62 and the side length of the rectangular frame support 42 a.
In the using process, the fixed support frame 42 is adjusted to be horizontal, a measuring plate 80 is placed in the fixed support frame 42, then the panoramic shooting frame 60 is installed, 4 baffle plates 50 are arranged between 4 support columns 42b, each baffle plate 50 is clamped between two adjacent support columns 42b, then the installation position of the movable support frame 41 on the support columns 42b and the position of the outer scale mark of the outer side surface of the aggregate cylinder 20 are adjusted to determine a proper falling height, then the sealing inserting plate 30 is inserted into the slot, then the middle granules are poured into the aggregate cylinder 20 to a specified depth, then the sealing inserting plate 30 is pulled out to enable the granules to fall to form a granule pile, then the sealing inserting plate 30 is inserted into the slot, the camera is placed in the camera fixing slot 32 to shoot a top view to obtain the pile diameter D of the granule pile, then the camera is placed on different camera bayonets of the panoramic shooting frame 60, obtaining two-dimensional pictures of the particle pile in different directions, finally importing the two-dimensional pictures obtained by multi-angle panoramic shooting into image analysis software, such as Autodesk 123D Catch,and obtaining a three-dimensional stacking chart of the particle stack, and analyzing to obtain the average angle of repose. Alternatively, the laser emitter 70 may be used to measure the height H of the stack of particles and manually measure the average diameter D of the stack at different angles of the stack of particles, using a formula
Thereby obtaining an average angle of repose.
Preferably, referring to fig. 1, the aggregate barrel 20 includes an upper barrel 21 and a plurality of lower barrels 22, the upper barrel 21 is of a hollow cylindrical structure, a feed inlet is arranged at the top of the upper barrel 21, the lower barrel 22 is of a hollow inverted cone structure, the plurality of lower barrels 22 have different heights or are provided with different discharge outlets, and the plurality of lower barrels 22 can be detachably mounted at the bottom of the upper barrel 21 through bolts.
In the embodiment of the invention, the inner diameter of the upper cylinder 21 is 200mm, the cylinder height is 250mm, the inner diameter of the upper part of the lower cylinder 22 is 200mm, the bottom of the upper cylinder 21 is connected with the top of the lower cylinder 22 through a bolt, the discharge hole of the lower cylinder 22 is circular, the inner diameter of the discharge hole is 65mm, and the inclination angle of the lower side surface of the lower cylinder 22 relative to the upper side surface is 60 degrees.
In order to facilitate the installation of the sealing insertion plate 30, the bottom of the lower cylinder 22 is provided with a slot member 23, the slot member 23 includes two slots oppositely arranged, and the sealing insertion plate 30 can be inserted into the two slots to close the discharge hole.
Referring to fig. 8, the sealing insert plate 30 is provided with protrusions 31 at both sides, and the position of the sealing insert plate 30 can be fixed by the protrusions 31.
The camera fixing groove 32 at the bottom of the sealing insertion plate 30 comprises two first clamping grooves which are oppositely arranged, and the camera is fixed in the two first clamping grooves. In order to conveniently adjust the position of the lens of the camera, the first clamping grooves can be made of steel materials, a magnet is arranged between the two first clamping grooves, and the position of the magnet can be flexibly adjusted according to different positions of the lens of the camera.
Referring to fig. 2, in order to fix the baffle 50, the bottom of the supporting column 42b is provided with a second locking groove 51, and two sides of the baffle 50 are respectively locked in the two second locking grooves 51. The barrier 50 is a transparent acrylic plate so as not to affect the image taken by the camera.
Referring to fig. 2, in order to adjust the position of the fixing support frame 42 conveniently, a plurality of uniformly distributed first fixing holes are arranged on the support column 42b along the vertical direction, a second fixing hole is arranged on the first sleeve ring 41a, the first locking structure is a locking column, and the first sleeve ring 41a is locked by the locking column penetrating through the second fixing hole and the first fixing hole.
In the embodiment of the present invention, the inner side of the rectangular frame support 42a is 1000mm long, and the height of the second engaging groove 51 is 100 mm. The height of fixed stay 42 is 700mm, and it has 7 first fixed orificess to open on every support column 42b, and the interval of adjacent first fixed orificess is 50mm, and the height of the first fixed orificess of bottommost is 300mm, and the height of second draw-in groove 51 is 100 mm.
In the embodiment of the present invention, a plurality of measuring plates 80 are provided, the measuring plates 80 have a square structure, the plurality of measuring plates 80 have different friction coefficients, and when medium particles with the same volume fall from the same aggregate barrel 20, the measuring plates 80 with different friction coefficients generate different trimming angles.
But panorama measurement's well granule angle of repose apparatus still includes spirit level and background cloth, adjusts bone feed cylinder 20 level through the spirit level, when the camera is placed and shoots in a camera bayonet socket or camera fixed slot 32, and after the well granule whereabouts back formation granule heap, the background cloth cover is placed and is established in the granule heap outside to the camera lens of camera.
The use method of the invention comprises the following steps: firstly, a level meter is utilized to adjust the level of a fixed support frame 42, a measuring plate 80 is placed in the fixed support frame 42, then a panoramic shooting frame 60 is well installed, 4 baffles 50 are arranged between 4 support columns 42b, each baffle 50 is clamped between two adjacent support columns 42b, then the installation position of a movable support frame 41 on the support columns 42b is adjusted to determine a proper falling height, a discharge hole with a proper shape and a lower cylinder 22 with a proper height are selected to be connected with an upper cylinder 21, the connected upper cylinder 21 and the lower cylinder 22 are installed on the movable support frame 41, and the height of the upper cylinder 21 is adjusted; then the sealing inserting plate 30 is inserted into the slot; then pouring the medium particles into the aggregateThe barrel 20 is drawn to a specified depth, the sealing inserting plate 30 is pulled out, particles fall to form a particle pile, the sealing inserting plate 30 is inserted into the inserting groove, a camera is placed in the camera fixing groove 32 to shoot a top view, the pile forming diameter D of the particle pile is obtained, then the camera is placed on different camera bayonets of the panoramic shooting frame 60, two-dimensional pictures of the particle pile in different directions are obtained, finally the two-dimensional pictures obtained through multi-angle panoramic shooting are led into image analysis software, such as Autodesk 123D Catch, and then a three-dimensional pile forming picture of the particle pile is obtained, and accordingly an average repose angle is obtained. It is also possible to measure the height H of the pile of particles using the laser emitter 70 and to manually measure the diameter D of the pile of particles, by means of a formula
Thereby obtaining the angle of repose.
As above, the middle particle material repose angle measuring instrument capable of performing panoramic measurement provided by the embodiment can perform panoramic measurement on particle accumulation repose angles from a plurality of angles, change a falling mode by replacing different lower cylinders 22, flexibly change a falling height by adjusting the height of the movable support frame 41 and the position of the upper cylinder 21, enable repose angle data measured by an experiment to be more accurate and representative, improve the flexibility and repeatability of the experiment, and be simple and fast to operate. In addition, different measuring plates 80 can change the friction coefficient of the piled ground, and the research on the influence factors of the repose angle is also facilitated.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (10)
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| CN202110025981.5A CN112611679B (en) | 2021-01-08 | 2021-01-08 | But panoramic measurement's well grain material angle of repose apparatus |
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| CN202110025981.5A CN112611679B (en) | 2021-01-08 | 2021-01-08 | But panoramic measurement's well grain material angle of repose apparatus |
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| CN112611679A true CN112611679A (en) | 2021-04-06 |
| CN112611679B CN112611679B (en) | 2024-10-25 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114440795A (en) * | 2022-01-22 | 2022-05-06 | 安徽农业大学 | Automatic testing device and testing method for angle of repose of granular material |
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| CN214472542U (en) * | 2021-01-08 | 2021-10-22 | 武汉理工大学 | But panorama measurement's well granule material angle of repose apparatus |
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2021
- 2021-01-08 CN CN202110025981.5A patent/CN112611679B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100594357B1 (en) * | 2005-02-23 | 2006-06-30 | (주)스마트비전텍 | Side inspection device of round product |
| CN207964546U (en) * | 2018-03-26 | 2018-10-12 | 武汉理工大学 | The adjustable Coarse Aggregate Repose angle gauge of whereabouts pattern |
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| Title |
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| CN114440795A (en) * | 2022-01-22 | 2022-05-06 | 安徽农业大学 | Automatic testing device and testing method for angle of repose of granular material |
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