CN113830585B - Material repose angle measuring method and material repose angle measuring instrument - Google Patents
Material repose angle measuring method and material repose angle measuring instrument Download PDFInfo
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- CN113830585B CN113830585B CN202111205186.0A CN202111205186A CN113830585B CN 113830585 B CN113830585 B CN 113830585B CN 202111205186 A CN202111205186 A CN 202111205186A CN 113830585 B CN113830585 B CN 113830585B
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- 239000002245 particle Substances 0.000 description 11
- 238000005259 measurement Methods 0.000 description 10
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- 238000009825 accumulation Methods 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 4
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- 230000003028 elevating effect Effects 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G69/00—Auxiliary measures taken, or devices used, in connection with loading or unloading
- B65G69/04—Spreading out the materials conveyed over the whole surface to be loaded; Trimming heaps of loose materials
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
- B65D25/20—External fittings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G65/00—Loading or unloading
- B65G65/30—Methods or devices for filling or emptying bunkers, hoppers, tanks, or like containers, of interest apart from their use in particular chemical or physical processes or their application in particular machines, e.g. not covered by a single other subclass
- B65G65/32—Filling devices
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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
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
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Abstract
The invention belongs to the technical field of measuring instruments, and particularly relates to a material repose angle measuring method and a material repose angle measuring instrument, wherein the measuring instrument comprises a base, the base comprises a stand column and a transverse support arranged at the top of the stand column, and a suspension support is fixed at the bottom of the transverse support; the suspension support column is fixedly provided with a material stacking platform which is horizontally arranged, the material stacking platform is a circular tray body, and the suspension support column is arranged at the center of the material stacking platform; the base is provided with a lifting device which is provided with a lifting telescopic end; a material groove is fixedly formed in the telescopic end, corresponds to the material stacking platform up and down, is arranged with a notch upwards, and is used for being sleeved outside the material stacking platform; the lifting device is used for driving the material tank to rise and sleeved outside the material stacking platform so as to fill the material tank with the material and enable the material stacking platform to be buried in the material; the lifting device is also used for driving the animal trough to descend so as to form a conical stacking body on the material stacking platform.
Description
Technical Field
The invention belongs to the technical field of measuring instruments, and particularly relates to a material repose angle measuring method and a material repose angle measuring instrument.
Background
The natural angle of repose, also known as the repose angle, refers to the angle between the free surface and the horizontal plane when the free surface in a stack formed by the material under the action of gravity and its coefficient of friction is in a balanced limit state. The repose angle is one of the most important physical properties of the granular materials, and comprehensively reflects the properties of fluidity, surface smoothness, hardness and the like of the granules. The method has wide application in researching material characteristics in the fields of materials, construction, water conservancy, agriculture, medicine and the like.
Methods for measuring the repose angle in the prior art include a classical funnel method, a disc lifting method and a plate drawing method. The classical funnel method is to add powder slowly from above the funnel, form a conical stack of materials leaking from the bottom of the funnel on a horizontal plane, and measure the repose angle. The disc lifting method is to embed a disc with a certain diameter into a material, slowly lift the disc away from a material tank, and form a conical stacking angle on the disc. The drawing plate method is to fill a rectangular transparent container with the material, and then rapidly open one of the side plates of the container to allow the material to flow out freely to form an inclined angle.
The existing methods for measuring the repose angle have some defects, and the diameter of material particles and the impact force of material falling in the measuring process of the classical funnel method have unavoidable interference on the formation of the repose angle of the material, are limited by the aperture of the funnel, and have poor universality. The disc lifting method has the advantages that the movement of the disc during the lifting process can influence the formation of the repose angle of the material, and the uneven lifting speed has a larger influence on the measurement result of the repose angle. In the measuring process, the repose angle is limited by the friction force of the side wall of the container besides the action of the gravity and the internal friction force of the material, and the measurement accuracy of the repose angle is directly influenced by the friction force of the side wall of the container. In addition, the existing measuring method is manually operated in the measuring process, the measuring efficiency is low, and the measuring result is affected by the operation speed and the uneven speed.
Disclosure of Invention
The invention aims to provide a material repose angle measuring method, which aims to solve the technical problem of larger measuring result error in the measuring method in the prior art; the material repose angle measuring instrument is also provided to solve the technical problems.
In order to achieve the above purpose, the technical scheme of the material repose angle measuring method provided by the invention is as follows: the material repose angle measuring method comprises the following steps:
step one: the material stacking platform is kept to be fixedly arranged and in a horizontal state, the material driving trough is driven to ascend to a position sleeved outside the material stacking platform, the material trough is filled with materials, and the material stacking platform is buried in the materials;
step two: and driving the animal trough to descend and forming a conical stacking body on the material stacking platform, and measuring the included angle between the free surface of the conical stacking body and the horizontal plane to obtain the material repose angle.
The beneficial effects are that: the material stacking platform is fixed, the material groove slowly descends at a constant speed, the material particles freely fall from the material stacking platform under the action of gravity and internal friction force, the material particles which do not fall and are in a stable state form a conical stacking body on the material stacking platform, and then the repose angle of the material is measured. In the formation process of the repose angle, the material particles are only acted by gravity and friction force and are not acted by other external forces, and the formed repose angle can reflect the characteristics of the material, so that the measurement error is reduced.
The technical scheme of the material repose angle measuring instrument provided by the invention is as follows: a material angle of repose meter comprising:
the base comprises a stand column and a transverse bracket arranged at the top of the stand column, and a suspension strut is fixed at the bottom of the transverse bracket;
the material stacking platform is fixedly arranged on the suspension support column, the material stacking platform is horizontally arranged, the material stacking platform is a circular tray body, and the suspension support column is arranged at the center of the material stacking platform;
the lifting device is arranged on the base and provided with a lifting telescopic end;
the material groove corresponds to the material stacking platform vertically and is fixedly arranged on the telescopic end, a notch of the material groove is upwards arranged, and the material groove is used for being sleeved outside the material stacking platform;
the lifting device is used for driving the material tank to rise and sleeved outside the material stacking platform so as to fill the material tank with the material and enable the material stacking platform to be buried in the material; the lifting device is also used for driving the animal trough to descend so as to form a conical stacking body on the material stacking platform.
The beneficial effects are that: in the measuring process, the material stacking platform is fixed, the material groove slowly descends at a constant speed under the driving of the lifting device, the material particles freely fall from the material stacking platform under the action of gravity and internal friction force, the material particles which do not fall and are in a stable state form a conical stacking body on the material stacking platform, and then the repose angle of the material is measured. In the formation process of the repose angle, the material particles are only acted by gravity and friction force and are not acted by other external forces, and the formed repose angle can reflect the characteristics of the material, so that the measurement error is reduced. According to the invention, the material tank is driven by the lifting device, so that the material tank can lift at a lower speed at a uniform speed, errors generated by measurement of the repose angle due to uneven operation speed in the manual measurement operation process are reduced, and the measurement efficiency and the measurement accuracy are improved.
Preferably, the base comprises a bottom plate and a top plate positioned above the bottom plate, and at least two support columns are arranged between the top plate and the bottom plate;
the lifting device is fixedly arranged on the bottom plate, the top plate is used for pressing the lifting device downwards, and the telescopic end of the lifting device penetrates through the top plate upwards. The bottom plate and the top plate form an upper support and a lower support for the lifting device, so that the material tank can be lifted stably at a low speed.
Preferably, a material groove tray is arranged at the telescopic end of the lifting device, a mounting groove is formed at the upper end of the material groove tray, and the material groove is fixedly arranged in the mounting groove in a split mode. The material groove is installed on the material groove tray in a split mode, split assembly can be achieved, and the material groove is easy to replace.
Preferably, a connecting sleeve is arranged at the bottom of the material groove tray, the telescopic end penetrates into the connecting sleeve, and a pin shaft is arranged between the connecting sleeve and the telescopic end in a penetrating mode. The pin shaft realizes the detachable connection between the material groove tray and the telescopic end, and is convenient to assemble and disassemble in the later period.
Preferably, a level gauge is arranged at the suspension strut. The level gauge at the suspension strut can check the level state of the material accumulation platform in real time, and the accuracy of the measurement result is improved.
Preferably, a connecting part is arranged between the hanging support and the transverse support, the upper end of the connecting part is fixedly arranged on the transverse support, the lower end of the connecting part is connected with the threads of the hanging support, a level installation plate is pressed between the connecting part and the hanging support, the level installation plate is parallel to the material stacking platform, and the level is arranged on the level installation plate. The level installation plate is clamped between the connecting part and the suspension strut, and is convenient to assemble.
Preferably, the connecting part comprises an upper connecting piece connected with the transverse bracket, and further comprises a lower connecting piece connected with the suspension strut, wherein the upper connecting piece and the lower connecting piece are assembled together in a plug bush manner, and a pin shaft is arranged between the upper connecting piece and the lower connecting piece in a penetrating manner. The pin shafts are arranged on the upper connecting piece and the lower connecting piece in a penetrating way, so that the upper connecting piece and the lower connecting piece are detachably connected, and the dismounting is convenient.
Preferably, scale marks are arranged on the suspension support. After setting up the scale mark, after forming the circular cone stack body on the material stack platform, can directly read and pile up the height, according to the diameter of known material stack platform again, can directly calculate out the angle of repose, it is comparatively convenient to measure and calculate, need not increase other measurement structure in addition.
Preferably, at least three adjustable foundation bolts are arranged at the bottom of the base to ensure that the material stacking platform is in a horizontal state. Leveling can be carried out through at least three adjustable rag bolts, and the material stacking platform is ensured to be in a horizontal state all the time in the measuring process.
Drawings
FIG. 1 is a front view of a material angle of repose meter according to the present invention;
FIG. 2 is a right side view of the material repose angle measuring instrument provided by the invention;
FIG. 3 is a top view of the material repose angle measuring apparatus provided by the present invention;
FIG. 4 is a perspective view of the material repose angle measuring instrument provided by the invention;
FIG. 5 is an exploded view of the lower connector and the material stacking platform of the material repose angle measuring instrument provided by the invention;
reference numerals illustrate:
1. an adjustable anchor bolt; 2. a bottom plate; 3. a support column; 4. a top plate; 5. a material trough tray; 6. a material tank; 7. a material stacking platform; 8. a suspension strut; 9. a level mounting plate; 10. a column; 11. a transverse bracket; 12. an upper connecting piece; 13. a lower connecting piece; 14. a bubble level; 15. a lifting device; 16. a screw; alpha, angle of repose; s, lifting device travel.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the particular embodiments described herein are illustrative only and are not intended to limit the invention, i.e., the embodiments described are merely some, but not all, of the embodiments of the invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present invention.
It is noted that relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" is not intended to exclude processes, methods comprising such element.
In the description of the present invention, the terms "mounted," "connected," "coupled," and "connected," as may be used broadly, and may be connected, for example, fixedly, detachably, or integrally, unless otherwise specifically defined and limited; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art in specific cases.
In the description of the present invention, it should be noted that, unless explicitly stated and limited otherwise, the term "provided" may be interpreted broadly, and for example, an object "provided" may be a part of a body, may be separately disposed from the body, and may be connected to the body, where the connection may be a detachable connection or an undetachable connection. The specific meaning of the above terms in the present invention can be understood by those skilled in the art in specific cases.
The present invention is described in further detail below with reference to examples.
The invention provides a concrete embodiment of a material repose angle measuring instrument:
as shown in fig. 1 to 5, the material repose angle measuring instrument is used to form a conical stack and measure the repose angle α of the stack. The material repose angle measuring instrument (hereinafter referred to as measuring instrument) mainly comprises a base, a material stacking platform 7, a lifting device 15 and a material groove 6.
As shown in fig. 1 to 4, the base comprises a bottom plate 2, the bottom plate 2 is a circular plate body, three adjustable anchor bolts 1 are installed at the bottom of the bottom plate 2, the three adjustable anchor bolts 1 are circumferentially uniformly distributed, and the material stacking platform 7 can be guaranteed to be in a horizontal state by adjusting the adjustable anchor bolts 1. The lifting device 15 is fixedly arranged in the middle of the top surface of the bottom plate 2, the lifting device 15 is an electric push rod, the electric push rod is fixed on the bottom plate 2, and a rod body of the electric push rod extends upwards to form a telescopic end capable of stretching up and down. Three support columns 3 are fixed at the edge of the top surface of the bottom plate 2, the support columns 3 are uniformly distributed circumferentially, a top plate 4 is fixedly arranged at the top of the support columns 3, and the support columns are mounted through bolts. The top plate 4 can compress tightly the electric putter on the bottom plate 2, carries out upper and lower double bracing through bottom plate 2 and top plate 4 to elevating gear 15, and flexible end then upwards wears out in by the top plate 4. Through carrying out upper and lower double bracing to elevating gear 15, can guarantee the material groove 6 that links to each other with elevating gear 15 low-speed steady lift.
The telescopic end of the lifting device 15 is provided with a material groove tray 5, specifically, the material groove tray 5 and the telescopic end are detachably connected through a pin roll (specifically, a cylindrical pin), specifically, the bottom of the material groove tray 5 is provided with a connecting sleeve, and the telescopic end is inserted into the connecting sleeve and penetrates through the connecting sleeve through the pin roll to realize assembly. As shown in fig. 1, 2 and 4, the top surface of the material tank tray 5 is provided with a mounting groove, a material tank 6 is placed in the mounting groove, a fastening bolt is assembled on the groove wall of the mounting groove, and the material tank 6 is fixedly installed on the material tank tray 5 through the fastening bolt, so that the material tank 6 can be lifted along with the lifting device 15. Wherein, the material groove 6 is the open-ended cylindric structure up in fact, and its internal diameter is greater than the external diameter of material pile-up platform 7 for material groove 6 can overlap in the outside of material pile-up platform 7.
As shown in fig. 1, 2, 4 and 5, the base further includes a column 10 fixed on the bottom plate 2, where the column 10 is a square bar, and a cross bracket 11 is mounted on the top of the column 10 by bolts, and the cross bracket 11 horizontally extends to form a cantilever. The material stacking platform 7 is fixedly arranged at one overhanging end of the transverse support 11, specifically, a connecting component is fixedly arranged at one overhanging end of the transverse support 11, the connecting component comprises an upper connecting piece 12 fixed on the transverse support 11, the upper connecting piece 12 can be specifically connected with the transverse support 11 in a welding, bolting and other modes, and the lower connecting piece 13 is connected with the upper connecting piece 12, specifically, the upper connecting piece 12 and the lower connecting piece are mutually inserted and fixed through a pin roll (specifically, a cylindrical pin). A suspension strut 8 is fixed on the lower connecting piece 13, specifically, the lower end of the lower connecting piece 13 is provided with an external thread section, the top surface of the suspension strut 8 is provided with an internal thread section, and the lower connecting piece 13 is screwed into the suspension strut 8 to realize connection. The material accumulation platform 7 is fixed on the suspension strut 8, the suspension strut 8 is located at the center of the material accumulation platform 7, and as shown in fig. 5, the material accumulation platform 7 is fixed on the suspension strut 8 through a screw 16.
A level mounting plate 9 is tightly pressed between the lower connecting piece 13 and the suspension strut 8, a bubble level 14 is fixed on the level mounting plate 9, and as the upper connecting piece 12, the lower connecting piece 13 and the suspension strut 8 extend up and down, the material stacking platform 7 and the level mounting plate 9 are parallel to each other, and whether the material stacking platform 7 is in a horizontal state is determined by observing the bubble level 14. And the material stacking platform 7 corresponds to the material tank 6 up and down, and the material stacking platform 7 can enter the material tank 6.
In practice, the material repose angle measuring instrument further comprises a control system, and the control system can control the lifting device 15 to automatically lift.
The hanging support column 8 is provided with scales, numerical values can be directly read, and the material stacking platform 7 is a circular disc body.
When the device is used, the material stacking platform 7 is fixed, the adjustable foundation bolts 1 are adjusted, the air bubble is ensured to be positioned at the center of the air bubble level meter 14, the lifting device 15 is extended to the longest time (the stroke of the lifting device 15 is S), the material stacking platform 7 is positioned in the material groove 6, material particles are fully filled in the material groove 6, then the lifting device 15 is uniformly and slowly lowered with the material groove 6, in the process, part of the material particles freely fall from the material stacking platform 7 under the action of gravity and internal friction force, the material particles which do not fall and are in a stable state form a conical stacking body on the material stacking platform 7, the ratio of the stacking height of the material on the material stacking platform 7 to the radius of the material stacking platform 7 is the chord of a material resting angle, namely tan alpha=2H/D, alpha=arctan (2H/D), wherein H is the stacking height of the material on the material stacking platform 7, the material stacking platform can be directly read by a scale mark on the hanging support column 8, and D is the diameter of the material stacking platform, and is a known quantity.
In the measuring process, the material stacking platform 7 is kept stationary, the material tank 6 slowly descends at a constant speed, the material particles are only acted by gravity and internal friction, the measured repose angle can reflect the characteristics of the material, and the measuring error is reduced.
In this embodiment, the material stacking platform 7 is detachably connected with the suspension strut 8 through a screw 16. In other embodiments, the material stacking platform is provided with a stud, and the suspension strut is screwed on the stud, so that the detachable connection between the material stacking platform and the suspension strut is realized. In other embodiments, the suspension strut and the material accumulation platform may be of an integral structure.
In this embodiment, three adjustable anchor bolts 1 are provided at the bottom of the bottom plate 2. In other embodiments, the number of adjustable anchor bolts may be increased according to the actual situation. In other embodiments, the adjustable anchor bolts are eliminated and the base is mounted on a platform that can be leveled.
In this embodiment, the suspension strut 8 has graduation marks, which allow the stacking height to be read directly. In other embodiments, the scale marks on the suspension strut are removed, and after the conical stacking body is formed on the material stacking platform, the stacking height is measured by adopting a projection mode and the like.
In this embodiment, the connecting member includes an upper connecting member 12 and a lower connecting member 13, and the upper connecting member 12 and the lower connecting member 13 are detachably connected by a pin. In other embodiments, the connecting member may be of unitary construction. In other embodiments, the attachment member is eliminated and the suspension strut is mounted directly to the cross brace.
In this embodiment, the connecting member is assembled with the suspension strut 8 by screw threads, and the level gauge mounting plate 9 is pressed between the connecting member and the suspension strut, and the level gauge is mounted on the level gauge mounting plate 9. In other embodiments, the level gauge is directly and fixedly mounted on the suspension strut, and particularly, a welding mode and the like can be adopted. In other embodiments, the level is no longer fixed to the meter, but is only placed on the material accumulation platform during initial adjustment, and is removed after leveling.
In this embodiment, the level is a bubble level 14. In other embodiments, the type of level may be modified, such as a digital level, or the like.
In the embodiment, the material tank tray 5 is detachably connected with the telescopic end of the lifting device 15 through a pin shaft. In other embodiments, the two can be detachably connected through threads, and in other embodiments, the two can be detachably assembled through welding and the like.
In this embodiment, the material trough 6 is mounted in the mounting trough of the material trough tray 5 using a set screw. In other embodiments, both are assembled by interference fit. In other embodiments, the material trough tray is eliminated and the material trough is directly mounted on the telescoping end of the lifting device.
The material tank 6 may be a cylinder without cover, or may be a cuboid without cover, a cube without cover, a polygonal cylinder without cover, or the like.
In this embodiment, the lifting device 15 is an electric push rod. In other embodiments, the lifting device may be an oil cylinder, a screw rod-screw sleeve mechanism, an air cylinder, or the like, which can implement linear expansion.
In this embodiment, the base includes a bottom plate and a top plate, and the bottom plate and the top plate double-support the lifting device. In other embodiments, only the bottom plate may be retained.
In this embodiment, the cross brackets are connected to the columns by bolts. In other embodiments, the cross support and the upright post may be integrally formed.
The specific embodiment of the material repose angle measuring method comprises the following steps:
the material repose angle measuring method is the same as the material repose angle measuring method in the above embodiment of the material repose angle measuring apparatus, and will not be described herein.
It should be noted that the above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above embodiment, but may be modified without inventive effort or equivalent substitution of some technical features thereof by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A material repose angle measuring method is characterized in that: the method comprises the following steps:
step one: the material stacking platform (7) is kept to be fixedly arranged and in a horizontal state, the material groove (6) is driven to ascend to a position sleeved outside the material stacking platform (7), the material groove (6) is filled with materials, and the material stacking platform (7) is buried in the materials;
step two: and driving the animal trough (6) to descend and forming a conical stacking body on the material stacking platform (7), and measuring the included angle between the free surface of the conical stacking body and the horizontal plane to obtain the angle of repose of the material.
2. A material repose angle measuring instrument which is characterized in that: comprising the following steps:
the base comprises an upright post (10) and a transverse bracket (11) arranged at the top of the upright post (10), and a suspension strut is fixed at the bottom of the transverse bracket (11);
the material stacking platform (7) is fixedly arranged on the suspension support posts (8), the material stacking platform (7) is horizontally arranged, the material stacking platform (7) is a circular disc body, and the suspension support posts (8) are arranged at the center of the material stacking platform (7);
the lifting device (15) is arranged on the base and provided with a lifting telescopic end;
the material groove (6) corresponds to the material stacking platform (7) from top to bottom, is fixedly arranged on the telescopic end, the notch of the material groove (6) is upwards arranged, and the material groove (6) is used for being sleeved outside the material stacking platform (7);
the lifting device (15) is used for driving the animal trough (6) to rise and sleeved outside the material stacking platform (7) so as to fill materials into the material trough (6) and enable the material stacking platform (7) to be buried in the materials; the lifting device (15) is also used for driving the animal trough (6) to descend so as to form a conical stacking body on the material stacking platform (7).
3. The material repose angle measuring instrument according to claim 2, characterized in that: the base comprises a bottom plate (2) and a top plate (4) positioned above the bottom plate (2), and at least two support columns (3) are arranged between the top plate (4) and the bottom plate (2);
the lifting device (15) is fixedly arranged on the bottom plate (2), the top plate (4) is used for downwards pressing the lifting device (15), and the telescopic end of the lifting device (15) is penetrated upwards from the top plate (4).
4. The material repose angle measuring instrument according to claim 2, characterized in that: the telescopic end of the lifting device (15) is provided with a material groove tray (5), the upper end of the material groove tray (5) is provided with a mounting groove, and the material groove (6) is detachably and fixedly arranged in the mounting groove.
5. The material repose angle measuring apparatus of claim 4, characterized in that: the bottom of the material groove tray (5) is provided with a connecting sleeve, the telescopic end penetrates into the connecting sleeve, and a pin shaft is arranged between the connecting sleeve and the telescopic end in a penetrating mode.
6. The material repose angle measuring apparatus according to any one of claims 2 to 5, characterized in that: and a level gauge is arranged at the position of the suspension strut (8).
7. The material repose angle measuring apparatus of claim 6, characterized in that: the horizontal type horizontal machine is characterized in that a connecting component is arranged between the hanging support (8) and the horizontal support (11), the upper end of the connecting component is fixedly arranged on the horizontal support (11), the lower end of the connecting component is connected with threads of the hanging support (8), a level meter mounting plate (9) is pressed between the connecting component and the hanging support (8), the level meter mounting plate (9) is parallel to the material stacking platform (7), and the level meter is arranged on the level meter mounting plate (9).
8. The material repose angle measuring apparatus of claim 7, characterized in that: the connecting component comprises an upper connecting piece (12) connected with the transverse support (11), and further comprises a lower connecting piece (13) connected with the suspension strut (8), wherein the upper connecting piece (12) and the lower connecting piece (13) are assembled together in a plug bush mode, and a pin shaft is arranged between the upper connecting piece (12) and the lower connecting piece (13) in a penetrating mode.
9. The material repose angle measuring apparatus according to any one of claims 2 to 5, characterized in that: scale marks are arranged on the suspension support posts (8).
10. The material repose angle measuring apparatus according to any one of claims 2 to 5, characterized in that: at least three adjustable foundation bolts (1) are arranged at the bottom of the base to ensure that the material stacking platform (7) is in a horizontal state.
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Application publication date: 20211224 Assignee: Luoyang Haiyuan Agricultural Machinery Co.,Ltd. Assignor: HENAN University OF SCIENCE AND TECHNOLOGY Contract record no.: X2023980047144 Denomination of invention: A method for measuring the angle of rest of materials and a material angle of rest measuring instrument Granted publication date: 20230714 License type: Common License Record date: 20231117 |
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