A multifunctional bulk material repose angle calibration test device

Abstract

The present invention discloses a multifunctional bulk material repose angle calibration test device, which belongs to the technical field of bulk material repose angle measurement. The present invention comprises a long barrel lifting device, a parameter measurement platform, a particle pushing device, a particle filling and recovery device, and a long barrel; through the ingenious cooperation of the above components, automatic barrel replacement, long barrel clamping and lifting, parameter measurement, particle pushing and recovery are realized; the automation level of bulk material repose angle measurement test is improved, and a large amount of manpower, material resources and time are saved; the test process of bulk material repose angle measurement is improved, the test measurement error is reduced, and the work efficiency is improved, and at the same time, the effect of centralized three-dimensional operation is achieved, the test space and cost are saved, and outstanding contributions are made to the measurement of bulk material repose angle.

Description

Technical Field

[0001] The invention relates to a multifunctional bulk material repose angle calibration test device, belonging to the technical field of bulk material repose angle measurement. Background Art

[0002] The angle of repose refers to the maximum slope angle that a granular material can maintain in a free stacking state, reflecting the fluidity and stability of the granular material. It is determined by the balance between the internal friction and gravity of the granular material. If the angle of repose of the stack is too small, the particles are prone to flow, which may cause the stack to collapse due to its own weight; on the contrary, if the angle of repose is too large, although the stack is stable, the fluidity is poor, which is not conducive to subsequent test measurements. The size of the angle of repose depends on many factors, including the shape, size, density, water content of the particles, as well as the viscosity and plasticity of the material. Therefore, the characteristics of the particles directly affect the size of the natural angle of repose, so the angle of repose of different granular materials is different.

[0003] Most of the existing angle of repose measuring devices are in manual or semi-automatic state, with large measurement errors and low work efficiency. At the same time, most angle of repose measuring devices are only suitable for measuring the angle of repose of small particles, and the application range is relatively narrow. In addition, there are areas that need to be improved in the measurement method of the angle of repose, and the use of image recognition to extract data should be the mainstream of development. In view of the above problems, it is extremely important to design a multifunctional bulk material angle of repose calibration device. Summary of the invention

[0004] The present invention provides a multifunctional bulk material repose angle calibration test device, which realizes automatic barrel changing, long barrel clamping and lifting, parameter measurement, particle pushing and recovery through the ingenious cooperation of various components; improves the automation level of bulk material repose angle measurement test, saves a lot of manpower, material resources and time; improves the test process of bulk material repose angle measurement, reduces test measurement errors, improves work efficiency, and at the same time achieves the effect of centralized three-dimensional operation, saves test space and cost, and makes outstanding contributions to the measurement of bulk material repose angle.

[0005] The technical solution of the present invention is:

[0006] A multifunctional bulk material repose angle calibration test device, comprising a long cylinder lifting device 2, a parameter measurement platform 3, a particle pushing device 4, a particle filling and recovery device 5, and a long cylinder 10; the funnel 46 in the particle filling and recovery device 5 is movably arranged along a first preset direction; the workbench 30 in the parameter measurement platform 3 is movably arranged along a second preset direction, so that the workbench 30 has at least a first position, a second position, and a third position; when the workbench 30 is located at the first position, the long cylinder lifting device 2 clamps the long cylinder 10 to move along the first preset direction, so that the long cylinder 10 has at least a first direction working position 1 spaced from the workbench 30 and located on one side of the workbench 30, and a first direction working position 2 spaced from the workbench 30 and located on the other side of the workbench 30; when the workbench 30 is located at the second position, the long cylinder 10 is clamped by the long cylinder lifting device 2 along the first preset direction. The cylinder 10 is provided with a first direction movement so that the cylinder 10 has at least a first direction working position 3 in contact with the workbench 30 and a first direction working position 4 spaced from the workbench 30 and located on one side of the workbench 30; when the cylinder 10 is in the first direction working position 3, the funnel 46 in the particle filling and recovery device 5 can fill the bulk material into the cylinder 10; in the process of the cylinder 10 switching from the first direction working position 3 to the first direction working position 4, the bulk material in the cylinder 10 falls onto the workbench 30; when the workbench 30 is in the third position, at least part of the cylinder lifting device 2 and the funnel 46 are located on the other side of the workbench 30, and the projection area of ​​the funnel 46 on the workbench 30 partially overlaps with the workbench 30, so that the bulk material on the workbench 30 in the third position can be pushed to the funnel 46 by the particle pushing device 4.

[0007] The multifunctional bulk material repose angle calibration test device also includes an automatic barrel changing device 1, which is used to drive the multiple long barrels 10 to rotate so that one of the multiple long barrels 10 has a first working position; when the workbench 30 is in the first position, the long barrel lifting device 2 can be used to clamp the long barrel 10 in the first working position, and clamp the long barrel 10 through the long barrel lifting device 2 to move along the first preset direction.

[0008] The long tube lifting device 2 includes a first driving part, a moving part, and a clamping part; the clamping part is connected to the moving part, and the first driving part is used to drive the clamping part to be movably arranged along a first preset direction along with the moving part; the clamping part is used to clamp the long tube 10; when the workbench 30 is located in the third position, the moving part and the clamping part are located on the other side of the workbench 30.

[0009] The parameter measurement platform 3 includes a guide support frame 29, a workbench 30, a motor II 31 and a spur rack 33; the spur rack 33 is fixedly connected to both sides of the workbench 30, and the spur rack 33 cooperates with the guide support frame 29. The motor II 31 drives the spur rack 33 on the workbench 30 to drive the workbench 30 to perform reciprocating linear motion along the second preset direction.

[0010] The particle pushing device 4 includes a second driving part and a particle pushing plate 35. The second driving part is used to drive the particle pushing plate 35 to be movably arranged along a second preset direction. During the movement of the particle pushing plate 35 along the second preset direction, the particle pushing plate 35 and the workbench 30 are in a first state of mutual contact.

[0011] The particle pushing device 4 also includes a slide groove fixing plate 38 and a slide rail groove II 42; a slide rail groove II 42 is provided on one side of the slide groove fixing plate 38; the particle pushing plate 35 includes a guide portion, a connecting portion, and a pushing portion; the guide portion is connected to the pushing portion through the connecting portion, and the guide portion cooperates with the slide rail groove II 42 to guide the movement of the particle pushing plate 35 along the second preset direction.

[0012] The particle filling and recovery device 5 includes a motor support plate 43, a motor IV 44, a funnel lifting plate 45, a funnel 46, a connecting circular hole 47, a connecting rod 48, a crank 49, a funnel guide plate 50, and a cylinder 54; the connecting circular hole 47 is fixedly connected to the cylinder 54, the connecting circular hole 47 is arranged on the funnel lifting plate 45, the funnel 46 is fixedly connected to the funnel lifting plate 45, the motor support plate 43 is fixedly connected to the funnel 46, the motor IV 44 is installed on the motor support plate 43, the motor IV 44 cooperates with the crank 49, the crank 49 cooperates with the connecting rod 48, the connecting rod 48 is connected to the funnel guide plate 50, and the funnel guide plate 50 cooperates with the outlet end of the funnel 46 to open / close the outlet end of the funnel 46.

[0013] The beneficial effects of the present invention are:

[0014] First, the multifunctional bulk material repose angle calibration test device proposed in the present invention integrates multiple functional modules such as automatic barrel changing, long barrel clamping and lifting, parameter measurement, particle pushing and recovery. The modules cooperate with each other to realize highly automated measurement work, saving a lot of manpower, material resources and time. At the same time, the device realizes a centralized three-dimensional operation effect, saves test space and cost, improves the test process of bulk material repose angle measurement, reduces test measurement errors, and significantly improves the work efficiency of bulk material repose angle measurement.

[0015] Second, the disc in the automatic barrel changing device of the present invention can be set with multiple workstations, which is suitable for placing long barrels of various different diameters above the disc, so as to facilitate the measurement of the angle of repose of particles of different sizes. In addition, the angle of repose measurement test can be carried out by using long barrels of different diameters under the same quality conditions, and the average value can be taken after multiple measurements, which is beneficial to improve the measurement accuracy and has certain guiding significance for practical work.

[0016] Third, the workbench in the parameter measurement platform of the present invention has a high degree of horizontality, and during the test, the horizontal camera and the vertical camera cooperate with each other to accurately extract the repose angle measurement data, which can reduce the measurement error of the repose angle. At the same time, the reciprocating linear motion of the workbench is realized by gear rack transmission, and the motion process is relatively smooth. Finally, with the cooperation of the particle pushing device, the particles are efficiently recovered, which greatly improves the efficiency of the repose angle measurement work.

[0017] Fourth, the particle filling and recovery device of the present invention can not only realize the recovery of particles, but also can pour the particles into the long cylinder relatively smoothly to continue the next test. During the test, the funnel guide plate is mainly driven horizontally by the motor IV indirectly. When the funnel guide plate moves outward, the particles fall from the funnel into the long cylinder. At the same time, the falling amount of the particles can be controlled by the distance the funnel guide plate moves outward; when the funnel guide plate moves inward, a container with an open top and the rest closed is formed, and the particles are recovered. The above shows that the device is multi-purpose, improves the measurement efficiency of the angle of repose, and saves the cost of setting up the test device.

[0018] Fifth, the multifunctional bulk material repose angle calibration test device proposed in the present invention adopts a centralized three-dimensional operation form to complete the measurement of the repose angle of different types of particles. The device occupies a small area. After testing, it can be assembled using a length × width × height size of 1500mm × 1000mm × 1800mm. Secondly, the device has a compact structure and continuous test steps, which can effectively avoid interference from non-human factors and can also significantly improve the efficiency of particle repose angle measurement operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is the overall structural front view of the present invention;

[0021] Figure 3 It is a structural schematic diagram of the automatic barrel changing device of the present invention;

[0022] Figure 4 The structure of the long tube lifting device of the present invention is shown in FIG. Figure 1 ;

[0023] Figure 5 The structure of the long tube lifting device of the present invention is shown in FIG. Figure 2 ;

[0024] Figure 6 It is a partial enlarged view of the components in area III in the overall structural schematic diagram of the present invention;

[0025] Figure 7 It is a schematic diagram of the structure of the parameter measurement platform of the present invention;

[0026] Figure 8 It is a schematic diagram of the structure of the particle pushing device of the present invention;

[0027] Fig. 9 It is a partial enlarged view of the components of area I of the particle pushing device of the present invention;

[0028] Fig.10 It is a schematic diagram of the structure of the particle filling and recovery device of the present invention;

[0029] Fig.11 It is a partial enlarged view of the components of the particle filling and recovery device II of the present invention;

[0030] Fig.12 It is a work flow chart of the present invention;

[0031] Fig.13 Angle of repose measurement parameters Figure 1 ;

[0032] Fig.14 Angle of repose measurement parameters Figure 2 ;

[0033] The numbers in the figure are: 1. Automatic tube changing device; 2. Long tube lifting device; 3. Parameter measuring platform; 4. Particle pushing device; 5. Particle filling and recovery device; 6. Main frame; 7. Speed ​​reduction motor; 8. Cam divider; 9. Spindle; 10. Long tube; 11. Disc; 12. Horizontal camera; 13. Motor I; 14. Disc; 15. Vertical camera; 16. Claw; 17. Lifting plate; 18. Vertical screw rod; 19. Vertical screw rod support plate I; 20. Back plate; 21. Slide rail groove I; 22. Lifting slider; 23. Support frame groove; 24. Chassis; 25. Motor; 26. Vertical screw rod support plate II; 27. Bottom plate; 28. Vertical Support frame; 29. ​​Guide support frame; 30. Workbench; 31. Motor II; 32. Second layer; 33. Straight rack; 34. Coupling; 35. Particle push plate; 36. Horizontal screw; 37. Horizontal screw support plate I; 38. Slide groove fixing plate; 39. Horizontal screw support plate II; 40. Motor III; 41. Motor support platform; 42. Slide rail groove II; 43. Motor support plate; 44. Motor IV; 45. Funnel lifting plate; 46. Funnel; 47. Connecting round hole; 48. Connecting rod; 49. Crank; 50. Funnel guide plate; 51. Horizontal support frame; 52. Four-jaw chuck; 53. Third layer; 54. Cylinder; 55. Top plate. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. It should be noted that the embodiments in this application and the features in the embodiments can be combined with each other arbitrarily without conflict.

[0035] refer to Figure 1-Figure 14A multifunctional bulk material repose angle calibration test device comprises a long cylinder lifting device 2, a parameter measurement platform 3, a particle pushing device 4, a particle filling and recovery device 5, and a long cylinder 10; the funnel 46 in the particle filling and recovery device 5 is movably arranged along a first preset direction; the workbench 30 in the parameter measurement platform 3 is movably arranged along a second preset direction, so that the workbench 30 has at least a first position, a second position, and a third position; when the workbench 30 is located at the first position, the long cylinder lifting device 2 clamps the long cylinder 10 to move along the first preset direction, so that the long cylinder 10 has at least a first direction working position 1 spaced from the workbench 30 and located on one side of the workbench 30, and a first direction working position 2 spaced from the workbench 30 and located on the other side of the workbench 30; when the workbench 30 is located at the second position, the long cylinder 10 is clamped by the long cylinder lifting device 2 along the first preset direction. The cylinder 10 is provided with a first direction movement so that the cylinder 10 has at least a first direction working position 3 in contact with the workbench 30 and a first direction working position 4 spaced from the workbench 30 and located on one side of the workbench 30; when the cylinder 10 is in the first direction working position 3, the funnel 46 in the particle filling and recovery device 5 can fill the bulk material into the cylinder 10; in the process of the cylinder 10 switching from the first direction working position 3 to the first direction working position 4, the bulk material in the cylinder 10 falls onto the workbench 30; when the workbench 30 is in the third position, at least part of the cylinder lifting device 2 and the funnel 46 are located on the other side of the workbench 30, and the projection area of ​​the funnel 46 on the workbench 30 partially overlaps with the workbench 30, so that the bulk material on the workbench 30 in the third position can be pushed to the funnel 46 by the particle pushing device 4.

[0036] refer to Figure 1 In the perspective shown, the first direction work position 1 and the first direction work position 4 are located above the workbench 30, the long tube 10 is in contact with the upper part of the workbench 30 as the first direction work position 3, and the first direction work position 2 is located below the workbench. The first preset direction is perpendicular to the second preset direction, the first preset direction is the vertical direction, and the second preset direction is the horizontal direction.

[0037] Furthermore, the multifunctional bulk material repose angle calibration test device also includes an automatic barrel changing device 1, which is used to drive the multiple long barrels 10 to rotate so that one of the multiple long barrels 10 has a first working position; when the workbench 30 is in the first position, the long barrel lifting device 2 can be used to clamp the long barrel 10 in the first working position, and clamp the long barrel 10 through the long barrel lifting device 2 to move along the first preset direction.

[0038] For example, Figure 3 As shown, the automatic tube changing device 1 includes a reduction motor 7, a cam divider 8 and a disc 11; a plurality of the long tubes 10 are mounted on the positioning columns of the disc 11, the disc 11 is connected to the cam divider 8, the cam divider 8 is connected to the reduction motor 7 through its main shaft 9, and the reduction motor 7 and the cam divider 8 are fixedly connected to the upper part of the bottom plate 27 located on the main frame 6.

[0039] It can be known from the application of the above technical solution that the reduction motor 7 is connected to the cam divider 8 through the main shaft 9, and the reduction motor 7 drives the disc 11 to rotate, so as to realize that one of the multiple long tubes 10 has a first working position, that is, in this working position, the long tube is coaxial with the clamping part in the long tube lifting device 2. Taking the installation of four long tubes as an example, the cam divider 8 performs a rotational motion under the drive of the reduction motor 7, thereby driving the disc 11 fixed to the cam divider 8 to perform a rotational motion, and then the long tube 10 performs an intermittent motion of 90° rotation to realize the automatic tube changing function. When four long tubes are used, the disc 11 in the automatic tube changing device 1 has four stations, which is suitable for placing four different sizes of long tubes 10 above the disc 11. Using long tubes 10 of different diameters for testing is conducive to reducing test errors, and is also convenient for measuring the repose angles of different particle sizes.

[0040] Furthermore, the multifunctional bulk material repose angle calibration test device also includes a main frame 6 constructed by a horizontal support frame 51 and a vertical support frame, and the main frame 6 is arranged with a bottom plate 27, a second layer plate 32, a third layer plate 53, and a top plate 55 from bottom to top; the main frame 6 is used to install an automatic barrel changing device 1, a long barrel lifting device 2, a parameter measurement platform 3, a particle pushing device 4, and a particle filling and recovery device 5. The third layer plate 53 mainly plays a role of limiting the rising height of the funnel, and the top plate 55 plays a role of blocking dust.

[0041] Furthermore, the long tube lifting device 2 includes a first driving part, a moving part, and a clamping part; the clamping part is connected to the moving part, and the first driving part is used to drive the clamping part to be movably arranged along a first preset direction along with the moving part; the clamping part is used to clamp the long tube 10; when the workbench 30 is in the third position, the moving part and the clamping part are located on the other side of the workbench 30.

[0042] For example, Figure 4-Figure 6As shown, the first driving part includes a motor 25, a vertical screw 18, a vertical screw support plate Ⅰ19, a back plate 20, a slide rail groove Ⅰ21, and a vertical screw support plate Ⅱ26; the first moving part includes a lifting plate 17 and a lifting slider 22, the first clamping part includes a motor Ⅰ13 and a four-jaw chuck 52, and the four-jaw chuck 52 includes a plate body 14 and a claw 16; the chassis 24 is fixedly connected to the bottom plate 27, and the back plate 20 and the motor 25 are both installed on the chassis 24, wherein the back plate 20 has a vertical screw support plate Ⅰ19, The slide rail groove Ⅰ21, the support frame groove 23 and the vertical screw support plate Ⅱ26, the support frame groove 23 is used to cooperate with the main frame 6, the vertical screw 18 is installed on the vertical screw support plate Ⅰ19 and the vertical screw support plate Ⅱ26, the lifting slider 22 cooperates with the vertical screw 18, the lifting plate 17 is fixedly connected to the lifting slider 22, so it moves along the first preset direction with the lifting slider 22, and the motor Ⅰ13, the disk 14 and the vertical camera 15 are fixedly connected above the lifting plate 17, and the claw 16 cooperates with the disk 14. Furthermore, the main frame is also equipped with a horizontal camera 12, which is used to extract data from the materials on the workbench through the horizontal camera 12 and the vertical camera 15, so as to obtain the material pile height, the diameter of the material pile in the horizontal and vertical directions.

[0043] By applying the above technical solution, it can be known that the chassis 24 is fixedly connected to the bottom plate 27, and the back plate 20, the motor 25, the vertical screw support plate Ⅰ19, the slide rail groove Ⅰ21, the support frame groove 23, and the vertical screw support plate Ⅱ26 are all directly or indirectly installed on the chassis 24. The motor Ⅰ13 on the lifting plate 17 drives the four-jaw chuck 52 to clamp the long tube 10. Under the drive of the motor 25, the vertical screw 18 rotates, and the lifting slider 22 performs a linear lifting motion under the rotation of the vertical screw 18 and the guiding action of the slide rail groove Ⅰ21, thereby driving the lifting plate 17 fixed to the lifting slider 22 to perform a linear lifting motion. At this time, the lifting plate 17 drives the long tube 10 clamped by the four-jaw chuck 52 to perform a lifting motion to reach an appropriate position on the parameter measurement platform 3 to prepare for the next step of the test.

[0044] like Figure 7 As shown, the parameter measurement platform 3 includes a guide support frame 29, a workbench 30, a motor II 31, a second layer plate 32 and a spur rack 33; the second layer plate 32 is installed on the main frame 6, the motor II 31 is fixed above the second layer plate 32, the spur rack 33 is fixedly connected to both sides of the workbench 30, the spur rack 33 cooperates with the guide support frame 29, the guide support frame 29 is installed on the main frame 6, and the motor II 31 drives the spur rack 33 on the workbench 30 to drive the workbench 30 to perform reciprocating linear motion along the second preset direction.

[0045] In specific application, after the long tube lifting device 2 clamps the long tube 10 and rises to the top of the parameter measurement platform 3, it drives the spur rack 33 to make reciprocating linear motion under the drive of the motor II 31, and then drives the workbench 30 fixedly connected to the spur rack 33 to make the same movement. At the same time, the guide support frame 29 fixed on the main frame 6 plays a guiding role, so that the workbench 30 can move smoothly. When the workbench 30 runs to the appropriate position, the long tube 10 begins to fall to fit the workbench 30, and then under the action of the particle filling and recovery device 5, the particles fall into the long tube 10, and then the long tube 10 is slowly lifted to a certain height, so that the particles in the long tube 10 fall onto the workbench 30, and then the horizontal camera 12 and the vertical camera 15 are used to extract data; the angle of repose is calculated based on the extracted data. In addition, the workbench 30 on the parameter measurement platform 3 has a high levelness, which is beneficial to reducing test errors and at the same time plays the role of supporting the long cylinder 10. The parameter measurement platform 3 includes a gear rack transmission, which is convenient for the workbench 30 to achieve reciprocating linear movement, which is beneficial to the smooth implementation of subsequent test processes. The parameter measurement platform 3 can provide a better measurement environment for the calibration test of the repose angle of bulk materials and facilitate the recovery of particles.

[0046] Furthermore, the particle pushing device 4 includes a second driving part and a particle pushing plate 35. The second driving part is used to drive the particle pushing plate 35 to be movably arranged along a second preset direction. During the movement of the particle pushing plate 35 along the second preset direction, the particle pushing plate 35 and the workbench 30 have a first state of mutual contact.

[0047] Furthermore, the particle pushing device 4 also includes a slide groove fixing plate 38 and a slide rail groove II 42; a slide rail groove II 42 is provided on one side of the slide groove fixing plate 38; the particle pushing plate 35 includes a guide portion, a connecting portion, and a pushing portion; the guide portion is connected to the pushing portion through the connecting portion, and the guide portion cooperates with the slide rail groove II 42 to guide the movement of the particle pushing plate 35 along the second preset direction.

[0048] For example, Figure 8 , 9As shown, the second driving part includes a coupling 34, a horizontal screw 36, a horizontal screw support plate I 37, a horizontal screw support plate II 39, and a motor III 40; a motor support platform 41 is provided and fixedly connected to the second layer 32, the motor III 40 is installed on the motor support platform 41, the motor III 40 is connected to the horizontal screw 36 through the coupling 34, the horizontal screw support plate I 37 and the horizontal screw support plate II 39 are both installed on the main frame 6, mainly playing the role of supporting the horizontal screw 36; the slide groove fixing plate 38 is also installed on the main frame 6, and there is a slide rail groove II 42 inside it, and the guide of the particle push plate 35 The guide portion is provided with a convex strip which cooperates with the slide rail groove II 42, and the guide portion cooperates with the horizontal screw rod 36, so that the guide portion is driven to move along the second preset direction through the rotational movement of the horizontal screw rod 36, and then the pushing portion connected via the connecting portion is also driven to move along the second preset direction; the guide portion cooperates with the horizontal screw rod support plate I 37 to limit the movement of the particle pushing plate 35 along the second preset direction; the pushing portion is located below the horizontal screw rod 36, so as to push the material on the workbench 30, and during the pushing process, the bottom surfaces of the guide portion and the pushing portion are in contact with the working surface of the workbench.

[0049] In specific applications, after completing the measurement of the particle repose angle parameters, the particle pushing device 4 starts to work, the motor support platform 41 is fixedly connected to the top of the second layer plate 32, and the motor III 40 is installed on the motor support platform 41. The motor III 40 is connected to the horizontal screw 36 through the coupling 34 to drive the horizontal screw 36 installed on the horizontal screw support plate I 37 and the horizontal screw support plate II 39 to rotate, and the particle pushing plate 35 cooperates with the horizontal screw 36 and the slide fixing plate 38 respectively, and with the assistance of the rotational motion and the guiding motion, the particle pushing plate 35 is driven to move in a straight line, thereby pushing the particles on the workbench 30 into the particle filling and recovery device 5.

[0050] like Fig.10 , Fig.11 As shown, the particle filling and recovery device 5 includes a motor support plate 43, a motor IV 44, a funnel lifting plate 45, a funnel 46, a connecting circular hole 47, a connecting rod 48, a crank 49, a funnel guide plate 50, and a cylinder 54; the connecting circular hole 47 is fixedly connected to the cylinder 54, the connecting circular hole 47 is arranged on the funnel lifting plate 45, the funnel 46 is fixedly connected to the funnel lifting plate 45, the motor support plate 43 is fixedly connected to the funnel 46, the motor IV 44 is installed on the motor support plate 43, the motor IV 44 cooperates with the crank 49, the crank 49 cooperates with the connecting rod 48, the connecting rod 48 is connected to the funnel guide plate 50, and the funnel guide plate 50 cooperates with the outlet end of the funnel 46 to open / close the outlet end of the funnel 46.

[0051] In specific application, the cylinder 54 drives the particle filling and recovery device 5 to perform lifting movement, so that the particle filling and recovery device 5 falls to an appropriate position at a certain height below the workbench 30, and then the particle pushing device 4 operates to push the particles into the particle filling and recovery device 5 to complete the particle recovery operation; when it is required to complete the operation of pouring particles into the long cylinder 10, the cylinder 54 drives the particle filling and recovery device 5 to move to the top of the long cylinder 10, so that the bottom of the funnel 46 is almost close to the upper surface of the long cylinder 10, and then the motor IV44 fixed on the motor support plate 43 drives the crank 49 to rotate at a certain angle, thereby driving the connecting rod 48 to swing, and finally the motor IV44 indirectly drives the funnel guide plate 50 that cooperates with the funnel 46 to move horizontally. When the funnel guide plate 50 moves outward, the particles in the funnel 46 will fall into the long cylinder 10 along with the opening, and when the funnel guide plate 50 moves inward, a container with an open upper end and a closed rest is formed, thereby completing the particle recovery operation, thereby realizing the function of one object with multiple uses.

[0052] The optional working principle of the present invention is described as follows:

[0053] Driven by the reduction motor 7, the cam divider 8 drives the disc 11 to rotate, and then rotates the long tubes 10 of different sizes to the test position; the motor I 13 drives the four-claw chuck 52 to clamp the long tube 10, and the long tube lifting device 2 lifts the long tube 10 to the top of the parameter measurement platform 3; driven by the motor II 31, the gear rack transmission makes the workbench 30 move horizontally to the bottom of the long tube 10, and then the long tube lifting device 2 drives the long tube 10 to descend to contact with the workbench 30, and then The funnel 46 is driven by the cylinder 54 to drop to the top of the long tube 10, and the motor IV 44 drives the crank 50 and the connecting rod 48 to move, thereby causing the funnel guide plate 50 to move outward. At this time, the particles in the funnel 46 will fall into the long tube 10 along with the opening, and then the cylinder 54 drives the funnel 46 to rise and reset; the long tube lifting device 2 clamps the long tube 10 and rises to a certain height. At this time, the particles form a natural accumulation state, and the horizontal camera 12 and the vertical camera 15 are used to take pictures of the particle pile and extract data, and the particle pile is obtained. The horizontal diameter D1 and vertical diameter D2 of the particles and the particle pile height H are obtained, and the particle repose angle AOR is calculated by the theoretical formula AOR=arctan(4H / (D1+D2)); the motor II 31 drives the spur rack 33 to make the workbench 30 move in the opposite direction for a certain distance, so that the long cylinder lifting device 2 can drive the long cylinder 10 to descend to the initial position, and then the cylinder 54 drives the funnel 46 to descend to the bottom of the parameter measurement platform 3, and then the motor II 31 drives the spur rack 33 to move the workbench 30 to a position close to the funnel 46, and then the particle pushing device 4 moves horizontally above the workbench 30, pushing the particles into the funnel 46 to realize particle recovery, and then the parameter measurement platform 3 and the particle pushing device 4 are reset, and the funnel 46 is reset under the drive of the cylinder 54. At this time, the first group of repose angle measurement tests are completed, and the above steps are repeated to use long cylinders 10 of different sizes to measure the repose angles of particles of different particle sizes or particles of the same particle size. The average value of multiple measurements is obtained to obtain a more accurate repose angle of bulk material. In the above, the parameters involved in the calculation of the angle of repose are shown as follows: Fig.13 , Fig.14 shown.

[0054] By applying the above technical scheme, it can be known that the device of the present invention has a high level of automation, can improve the measurement accuracy of the angle of repose, and save a lot of manpower, material resources and time; secondly, the device can measure the angle of repose of particles of different sizes, and has a wide range of applications; at the same time, the device achieves the effect of centralized three-dimensional operation, reducing the floor space and the cost of setting up the experimental device; finally, data is extracted based on camera recognition, and then the size of the angle of repose is calculated according to the formula AOR=arctan(4H / (D1+D2)), wherein AOR is the angle of repose of the particle, H is the height of the particle pile, D1 and D2 are the diameters of the particle pile in the horizontal and vertical directions measured on the top view, thereby obtaining more accurate measurement data, which is of great practical significance for ensuring the safety of the project, optimizing the material processing process, protecting the environment and improving production efficiency.

[0055] The specific implementation modes of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above implementation modes, and various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present invention.

Claims

1. A multifunctional bulk material repose angle calibration test device, characterized in that: It comprises a long cylinder lifting device (2), a parameter measuring platform (3), a particle pushing device (4), a particle filling and recovery device (5), and a long cylinder (10); The funnel (46) in the particle filling and recovery device (5) is movably arranged along a first preset direction; the workbench (30) in the parameter measurement platform (3) is movably arranged along a second preset direction, so that the workbench (30) has at least a first position, a second position, and a third position; When the workbench (30) is located at the first position, the long tube lifting device (2) clamps the long tube (10) and moves along a first preset direction, so that the long tube (10) has at least a first direction working position 1 spaced apart from the workbench (30) and located on one side of the workbench (30), and a first direction working position 2 spaced apart from the workbench (30) and located on the other side of the workbench (30); When the workbench (30) is located at the second position, the long cylinder (10) is clamped by the long cylinder lifting device (2) to move along the first preset direction, so that the long cylinder (10) has at least a first direction working position 3 in contact with the workbench (30) and a first direction working position 4 spaced from the workbench (30) and located on one side of the workbench (30); when the long cylinder (10) is in the first direction working position 3, the funnel (46) in the particle filling and recovery device (5) can fill the long cylinder (10) with bulk material; when the long cylinder (10) is switched from the first direction working position 3 to the first direction working position 4, the bulk material in the long cylinder (10) falls onto the workbench (30); When the workbench (30) is located at the third position, at least part of the long tube lifting device (2) and the funnel (46) are located on the other side of the workbench (30), and the projection area of ​​the funnel (46) on the workbench (30) partially overlaps with the workbench (30), so that the granular material on the workbench (30) in the third position can be pushed to the funnel (46) by the particle pushing device (4); The long tube lifting device (2) comprises a first driving part, a moving part, and a clamping part; the clamping part is connected to the moving part, and the first driving part is used to drive the clamping part to be movably arranged along a first preset direction with the moving part; the clamping part is used to clamp the long tube (10); when the workbench (30) is located at the third position, the moving part and the clamping part are located on the other side of the workbench (30); The parameter measurement platform (3) comprises a guide support frame (29), a workbench (30), a motor II (31) and a spur rack (33); the spur rack (33) is fixedly connected to two sides of the workbench (30), the spur rack (33) and the guide support frame (29) cooperate with each other, and the motor II (31) drives the spur rack (33) on the workbench (30) to drive the workbench (30) to perform reciprocating linear motion along a second preset direction; The particle pushing device (4) comprises a second driving part and a particle pushing plate (35), wherein the second driving part is used to drive the particle pushing plate (35) to be movably arranged along a second preset direction, and during the movement of the particle pushing plate (35) along the second preset direction, the particle pushing plate (35) and the workbench (30) are in a first state of contact with each other; The particle filling and recovery device (5) comprises a motor support plate (43), a motor IV (44), a funnel lifting plate (45), a funnel (46), a connecting circular hole (47), a connecting rod (48), a crank (49), a funnel guide plate (50), and a cylinder (54); the connecting circular hole (47) is fixedly connected to the cylinder (54), the connecting circular hole (47) is arranged on the funnel lifting plate (45), the funnel (46) is fixedly connected to the funnel lifting plate (45), the motor support plate (43) is fixedly connected to the funnel (46), the motor IV (44) is mounted on the motor support plate (43), the motor IV (44) and the crank (49) cooperate with each other, the crank (49) and the connecting rod (48) cooperate, the connecting rod (48) and the funnel guide plate (50) are connected, and the funnel guide plate (50) and the outlet end of the funnel (46) cooperate with each other to open / close the outlet end of the funnel (46).

2. The multifunctional bulk material repose angle calibration test device according to claim 1 is characterized in that: The multifunctional bulk material repose angle calibration test device further comprises an automatic barrel changing device (1), wherein the automatic barrel changing device (1) is used to drive the plurality of long barrels (10) to rotate so that one of the plurality of long barrels (10) has a first working position; when the workbench (30) is located at the first position, the long barrel lifting device (2) can be used to clamp the long barrel (10) at the first working position, and clamp the long barrel (10) through the long barrel lifting device (2) to move along a first preset direction.

3. The multifunctional bulk material repose angle calibration test device according to claim 1 is characterized in that: The particle pushing device (4) further comprises a slide groove fixing plate (38) and a slide rail groove II (42); a slide rail groove II (42) is provided on one side of the slide groove fixing plate (38); The particle push plate (35) comprises a guide portion, a connection portion, and a push portion; the guide portion is connected to the push portion via the connection portion, and the guide portion cooperates with the slide rail groove II (42) to guide the movement of the particle push plate (35) along a second preset direction.

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