CN112229765A - Agricultural material angle of repose measuring device - Google Patents
Agricultural material angle of repose measuring device Download PDFInfo
- Publication number
- CN112229765A CN112229765A CN202011100972.XA CN202011100972A CN112229765A CN 112229765 A CN112229765 A CN 112229765A CN 202011100972 A CN202011100972 A CN 202011100972A CN 112229765 A CN112229765 A CN 112229765A
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- reciprocating
- belt pulley
- measuring device
- repose
- lifting
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- 239000012773 agricultural material Substances 0.000 title claims abstract description 14
- 230000033001 locomotion Effects 0.000 claims abstract description 17
- 230000005540 biological transmission Effects 0.000 claims abstract description 9
- 238000005452 bending Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims 4
- 235000017491 Bambusa tulda Nutrition 0.000 claims 4
- 241001330002 Bambuseae Species 0.000 claims 4
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims 4
- 239000011425 bamboo Substances 0.000 claims 4
- 230000003028 elevating effect Effects 0.000 claims 3
- 238000000034 method Methods 0.000 description 7
- 238000005259 measurement Methods 0.000 description 3
- 238000009331 sowing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000012216 screening 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/24—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Catching Or Destruction (AREA)
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Abstract
The invention discloses an agricultural material repose angle measuring device which comprises a base, wherein a supporting wall is arranged on a shell on one side of the base, a sliding guide rail is arranged on the shell on one side of the supporting wall, a U-shaped collector and a circular platform are arranged on the upper surface of the base, a lifting cylinder is arranged above the circular platform and connected with a lifting mechanism, the lifting cylinder realizes vertical motion through the lifting mechanism, a reciprocating sieve is arranged above the lifting cylinder, the reciprocating sieve realizes reciprocating motion through the sliding guide rail of the reciprocating mechanism on the supporting wall, a transmission mechanism is arranged on the rear portion of the supporting wall and consists of a motor, a gear, a rack, a belt pulley type clutch, a cam, a reciprocating mechanism and a lifting mechanism, the transmission mechanism is connected with the supporting wall, and an output shaft of the motor is connected with the belt pulley type clutch. The device can effectively solve the problems that the repose angle measuring device is inconvenient to operate and easy to have errors and the like, and accurately and conveniently measures the natural repose angles of different grains.
Description
Technical Field
The invention relates to the technical field of agricultural engineering, in particular to an agricultural material repose angle measuring device.
Background
The natural angle of repose of grains, also called the angle of repose or angle of repose friction of grains, refers to the angle between the slope and the bottom of a conical heap formed by the loosening of grains themselves when stacked on a horizontal surface. The natural angle of repose of grains is one of important physical characteristics of grains, comprehensively reflects the physical characteristics of the grains such as hardness, grain type, quality, grain surface smoothness, maturity, moisture content and the like, is an important parameter influencing grain storage, transportation and sowing operation, and particularly aims at screening and seed selection of the grains before the sowing operation. The size of the angle of repose may also reflect the frictional properties of the grain itself, thereby indicating the flowability of the grain particles. Grains with good fluidity cannot keep balance on a slope surface with a small slope, so that the formed angle of repose is small, and grains with poor fluidity can form a large angle of repose.
Currently, the following methods are generally used for measuring the natural angle of repose of grains: the funnel is fixed at a certain height, grains fall from the funnel and are stacked into a cone with a certain angle, the height and the bottom surface radius of the cone are measured, and the numerical value of the angle of repose is calculated. The method can cause the grains which are piled into the cone to be impacted, peak clipping occurs, the space of the grains is uneven, the compactness is different, and the accuracy of the repose angle measurement is influenced.
Disclosure of Invention
Objects of the invention
Aiming at the problems, in order to overcome the defects of the prior art, the invention provides the agricultural material repose angle measuring device, which can effectively solve the problems that the operation of the repose angle measuring device is inconvenient, errors are easy to occur and the like, and can accurately and conveniently measure the natural repose angles of different grains.
(II) technical scheme
The invention provides an agricultural material repose angle measuring device, which comprises a base, wherein a shell on one side of the base is provided with a supporting wall, a shell on one side of the supporting wall is provided with a sliding guide rail, the upper surface of the base is provided with a U-shaped collector and a circular platform, a lifting cylinder is arranged above the circular platform and is connected with a lifting mechanism, the lifting cylinder realizes vertical motion through the lifting mechanism, a reciprocating sieve is arranged above the lifting cylinder, the reciprocating sieve realizes reciprocating motion through the sliding guide rail on the supporting wall through the reciprocating mechanism, the rear part of the supporting wall is provided with a transmission mechanism, the transmission mechanism consists of a motor, a gear, a rack, a belt pulley type clutch, a cam, a reciprocating mechanism and a lifting mechanism and is connected with the supporting wall, an output shaft of the motor is connected with the belt pulley type clutch, one end of the belt pulley type clutch is connected with a gear, one end of the reciprocating motion mechanism is connected with a belt pulley, the belt pulley is connected with a belt pulley type clutch through a belt, a supporting gear is arranged on a shell of the supporting wall, and the rack is in meshing transmission with the supporting gear and the gear.
Preferably, the U-shaped collector has a ramp for collecting grain that falls outside the lifting drum as a result of the movement of the sieve.
Preferably, the circular platform is connected to the U-shaped collector by a screw thread.
Preferably, the front end of the lifting mechanism is claw-shaped, the lifting cylinder with different diameters is clamped, and the rear end of the lifting mechanism is connected with the rack through welding.
Preferably, the front end of the reciprocating mechanism is connected with the reciprocating sieve, so that up-and-down 90-degree bending can be realized, the rear end of the reciprocating mechanism is connected with a cam on a shaft through a pin, and the whole reciprocating mechanism is matched with a sliding guide rail on a support wall.
Compared with the prior art, the invention has the beneficial effects that:
the method adopts a rain falling method to prepare the material to be detected, so that the naturally scattered grains can be well simulated, and the formed sample is closer to an actual natural grain layer. The reciprocating mechanism is adopted to realize reciprocating vibration blanking of the reciprocating sieve, so that the error of manual operation is reduced, the uniformity and repeatability of the prepared sample are better, the relative compactness of the prepared sample is similar to that of the prepared sample under the condition of natural scattering, and the experimental requirements can be met. Meanwhile, the lifting speed of the lifting cylinder can be set within a certain speed range as required, so that uniform lifting is realized, and the influence of the motion fluctuation of the lifting cylinder on the grain aggregate uniformity can be reduced;
the instrument is simple to operate, and sieves with different sieve holes and lifting cylinders with different specifications can be replaced according to the size of the grain to be detected;
the device can realize the intuitive and accurate measurement of the repose angle according to different requirements. For rough calculation, a vertical numerical value reading thin mark rod with scales can be arranged at the center of the circular platform, the height H is read, and the diameter d of the lifting cylinder is calculated according to a formula
The angle of repose a can be directly calculated; if an accurate value is required to be obtained, a camera can be installed at the front end of the circular platform to take a picture and upload the picture to a computer, and a more accurate angle of repose is obtained through computer fitting.
Drawings
FIG. 1 is a schematic perspective view of an agricultural material repose angle measurement device according to the present invention;
fig. 2 is a schematic view of a three-dimensional structure of a driving gear and a rack of the agricultural material repose angle measuring device provided by the invention.
In the figure: the device comprises a 1U-shaped collector, a 2 circular platform, a 3 lifting cylinder, a 4 reciprocating sieve, a 5 reciprocating mechanism, a 6 sliding guide rail, a 7 driving gear, an 8 supporting gear, a 9 rack, a 10 lifting mechanism, a 11 base, a 12 belt pulley, a 13 motor, a 14 belt pulley type clutch, a 15 cam and a 16 supporting wall.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
As shown in fig. 1-2, the agricultural material repose angle measuring device provided by the invention comprises a base 11, a supporting wall 16 is arranged on a shell on one side of the base 11, a sliding guide rail 6 is arranged on a shell on one side of the supporting wall 16, a U-shaped collector 1 and a circular platform 2 are arranged on the upper surface of the base 11, a lifting cylinder 3 is arranged above the circular platform 2, the lifting cylinder 3 is connected with a lifting mechanism 10, the lifting cylinder 3 realizes vertical motion through the lifting mechanism 10, a reciprocating sieve 4 is arranged above the lifting cylinder 3, the reciprocating sieve 4 realizes reciprocating motion on the sliding guide rail 6 on the supporting wall 16 through a reciprocating mechanism 5, a transmission mechanism is arranged on the rear portion of the supporting wall 16, and the transmission mechanism is composed of a motor 13, a gear 7, a rack 9, a belt pulley clutch 14, a cam 15, a reciprocating mechanism 5 and the lifting mechanism 10, and are all connected with supporting wall 16, the output shaft of motor 13 is connected with belt pulley formula clutch 14, belt pulley formula clutch 14's one end is connected with gear 7, reciprocating motion mechanism 5's one end is connected with belt pulley 12, belt pulley 12 is connected with belt pulley formula clutch 14 through the belt, supporting wall 16's casing is equipped with supporting gear 8, rack 9 and supporting gear 8 and gear 7 meshing transmission.
In an alternative embodiment, the U-shaped collector 1 has a slope for collecting the grains that fall outside the lifting cylinder 3 due to the movement of the sieve.
In an alternative embodiment, the circular platform 2 is connected to the U-shaped collector 1 by means of a screw thread.
It should be noted that a vertical graduated number reading thin marker post can be arranged in the middle of the circular platform 2 according to the condition to measure the height H, and the height H is measured according to a formula
The angle of repose can be calculated intuitively.
In an alternative embodiment, the front end of the lifting mechanism 10 is claw-shaped and holds lifting cylinders 3 with different diameters, and the rear end of the lifting mechanism 10 is connected with the rack 9 by welding.
In an alternative embodiment, the front end of the reciprocating mechanism 5 is connected with the reciprocating screen 4 to realize up-and-down 90-degree bending, the rear end of the reciprocating mechanism 5 is connected with a cam 15 on a shaft through a pin, and the whole reciprocating mechanism 5 is matched with a sliding guide rail 6 on a supporting wall 16.
The working principle is as follows: the invention adopts the rain falling method to prepare the grain sample, can better simulate the naturally scattered grains, has better uniformity and repeatability of the prepared sample and larger relative compactness range, and the formed sample is closer to the actual natural grain layer. Before the motor 13 is started to work, the belt wheel type clutch 14 is controlled to enable the belt pulley 12 to rotate, the driving gear 7 does not rotate, the motor 13 is started, the cam 15 coaxial with the belt pulley 12 drives the reciprocating mechanism 5 to move, grains uniformly fall from the reciprocating sieve 4 at the moment, after the grains are uniformly filled, the motor 13 stops working, the belt pulley 12 stops rotating, the cam 15 coaxial with the belt pulley 12 stops rotating, the reciprocating mechanism 5 connected with the cam 15 stops working, and the reciprocating sieve 4 rotates upwards by 90 degrees around a pin to avoid interference between the lifting cylinder 3 and the sieve. In order to move the lifting drum 3 upwards, the motor 13 is started again, before the motor 13 is started, the belt wheel type clutch 14 is controlled to make the belt wheel 12 not rotate, the driving gear 7 rotates, the motor 13 is started to work, the rack 9 meshed with the driving gear 7 moves upwards at the moment, the lifting mechanism 10 welded with the rack 9 moves upwards, the lifting drum 3 clamped by the lifting mechanism 10 is uniformly lifted at a certain speed, after the lifting drum is lifted to a certain height, the power supply is cut off, the whole device stops working, at the moment, grains on the circular platform 2 are in a conical shape, and redundant grains flow into the U-shaped collector 1. There are two methods for measuring the angle of repose, the first of which reads the height by means of a graduated vertical number reading pin mounted in the center of a circular platform, the diameter of which is known,by the formula
Calculating to obtain; the second method is that a camera is arranged at the front part of the lifting cylinder, and the shot picture is transmitted to a computer terminal for fitting calculation to obtain the target.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" 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" or "second" 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 specifically defined otherwise.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (5)
1. The utility model provides an agricultural material angle of repose measuring device, includes base (11), its characterized in that, base (11) one side casing is equipped with support wall (16), sliding guide (6) are installed to one side casing of support wall (16), and the upper surface mounting of base (11) has U-shaped collector (1) and circular platform (2), the top of circular platform (2) is equipped with a lift section of thick bamboo (3), a lift section of thick bamboo (3) are connected with elevating system (10), a lift section of thick bamboo (3) realize vertical motion through elevating system (10), and the top of a lift section of thick bamboo (3) is equipped with reciprocating sieve (4), reciprocating sieve (4) realize reciprocating motion through sliding guide (6) of reciprocating motion mechanism (5) on support wall (16), and the rear portion of support wall (16) is drive mechanism, and drive mechanism is by motor (13), Gear (7), rack (9), belt pulley formula clutch (14), cam (15), reciprocating motion mechanism (5), elevating system (10) are constituteed, and all are connected with supporting wall (16), the output shaft and belt pulley formula clutch (14) of motor (13) are connected, the one end and the gear (7) of belt pulley formula clutch (14) are connected, the one end of reciprocating motion mechanism (5) is connected with belt pulley (12), belt pulley (12) are connected with belt pulley formula clutch (14) through the belt, the casing of supporting wall (16) is equipped with supporting gear (8), rack (9) and supporting gear (8) and gear (7) meshing transmission.
2. An agricultural material angle of repose measuring device according to claim 1, wherein the U-shaped collector (1) has a slope for collecting grain that falls outside the lifting drum (3) as a result of the movement of the screen.
3. An agricultural material angle of repose measuring device according to claim 1, wherein the circular platform (2) is connected to the U-shaped collector (1) by a screw thread.
4. The agricultural material repose angle measuring device according to claim 1, wherein the front end of the lifting mechanism (10) is claw-shaped and clamps lifting cylinders (3) with different diameters, and the rear end of the lifting mechanism (10) is connected with the rack (9) by welding.
5. An agricultural material repose angle measuring device according to claim 1, characterized in that the front end of the reciprocating mechanism (5) is connected with the reciprocating sieve (4) to realize up and down 90 degree bending, the rear end of the reciprocating mechanism (5) is connected with the cam (15) on the shaft through a pin, and the whole reciprocating mechanism (5) is matched with the sliding guide rail (6) on the supporting wall (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011100972.XA CN112229765B (en) | 2020-10-15 | 2020-10-15 | Agricultural material repose angle measuring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011100972.XA CN112229765B (en) | 2020-10-15 | 2020-10-15 | Agricultural material repose angle measuring device |
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| Publication Number | Publication Date |
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| CN112229765A true CN112229765A (en) | 2021-01-15 |
| CN112229765B CN112229765B (en) | 2024-02-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011100972.XA Active CN112229765B (en) | 2020-10-15 | 2020-10-15 | Agricultural material repose angle measuring device |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2148961Y (en) * | 1993-02-23 | 1993-12-08 | 国家医药管理局天津药物研究院 | Analyzer for powder basic physical properties |
| CN202452937U (en) * | 2012-02-22 | 2012-09-26 | 刘向阳 | Material static angle detection device |
| CN102784754A (en) * | 2011-05-16 | 2012-11-21 | 细川密克朗集团股份有限公司 | Screen vibration device |
| CN205538563U (en) * | 2016-03-24 | 2016-08-31 | 北京农业智能装备技术研究中心 | Cereal natural angle of repose testing arrangement |
| CN106198323A (en) * | 2016-08-26 | 2016-12-07 | 杭州同孚环保科技有限公司 | A kind of slide calliper rule formula solid accumulation measuring instrument angle of repose |
| CN205941277U (en) * | 2016-08-26 | 2017-02-08 | 杭州同孚环保科技有限公司 | Angle measurement instrument that stops is piled up to material |
| CN109781585A (en) * | 2019-03-22 | 2019-05-21 | 安徽省引江济淮集团有限公司 | A kind of no-Co-alloy steel Repose angle gauge |
| CN209215155U (en) * | 2018-11-16 | 2019-08-06 | 内蒙古农业大学 | A kind of grains of sand angle of repose rapid measurement device |
| CN110252645A (en) * | 2019-06-14 | 2019-09-20 | 徐州万佳机电设备制造有限公司 | The agricultural machinery of elite seed is screened in a kind of agricultural planting |
| CN212903017U (en) * | 2020-10-15 | 2021-04-06 | 山西农业大学 | Agricultural material angle of repose measuring device |
-
2020
- 2020-10-15 CN CN202011100972.XA patent/CN112229765B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2148961Y (en) * | 1993-02-23 | 1993-12-08 | 国家医药管理局天津药物研究院 | Analyzer for powder basic physical properties |
| CN102784754A (en) * | 2011-05-16 | 2012-11-21 | 细川密克朗集团股份有限公司 | Screen vibration device |
| CN202452937U (en) * | 2012-02-22 | 2012-09-26 | 刘向阳 | Material static angle detection device |
| CN205538563U (en) * | 2016-03-24 | 2016-08-31 | 北京农业智能装备技术研究中心 | Cereal natural angle of repose testing arrangement |
| CN106198323A (en) * | 2016-08-26 | 2016-12-07 | 杭州同孚环保科技有限公司 | A kind of slide calliper rule formula solid accumulation measuring instrument angle of repose |
| CN205941277U (en) * | 2016-08-26 | 2017-02-08 | 杭州同孚环保科技有限公司 | Angle measurement instrument that stops is piled up to material |
| CN209215155U (en) * | 2018-11-16 | 2019-08-06 | 内蒙古农业大学 | A kind of grains of sand angle of repose rapid measurement device |
| CN109781585A (en) * | 2019-03-22 | 2019-05-21 | 安徽省引江济淮集团有限公司 | A kind of no-Co-alloy steel Repose angle gauge |
| CN110252645A (en) * | 2019-06-14 | 2019-09-20 | 徐州万佳机电设备制造有限公司 | The agricultural machinery of elite seed is screened in a kind of agricultural planting |
| CN212903017U (en) * | 2020-10-15 | 2021-04-06 | 山西农业大学 | Agricultural material angle of repose measuring device |
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| CN112229765B (en) | 2024-02-23 |
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