A grain mixing device

Abstract

The utility model relates to a grain mixing device, driving motor, support plate, gyration axle, rotary support frame, mixing barrel assembly and autorotation mechanism, driving motor output end and gyration axle one end transmission connection, gyration axle other end passes through support plate and is fixedly connected with rotary support frame, autorotation mechanism one end is connected with support plate, and its other end is transmission connection with mixing barrel assembly, and rotary support frame is rotationally connected with mixing barrel assembly, and rotary support frame rotates around first axis under the drive of gyration axle, and autorotation mechanism is used for driving mixing barrel assembly to rotate around second axis, and first axis is perpendicular with second axis. Driving motor drives gyration axle to rotate, drives rotary support frame to rotate around first axis, simultaneously drives mixing barrel assembly to rotate around second axis through autorotation mechanism and second transmission assembly, realizes mixing barrel assembly to carry out the stirring to grain from different directions, ensures grain sample even mixing, reduces manual labor intensity, improves mixing efficiency.

Description

Technical Field

[0001] This utility model relates to the field of grain processing and testing equipment, specifically to a grain mixing device. Background Technology

[0002] In the grain-related industries, uniform mixing of grain samples is a crucial step in ensuring the accuracy of test results and the stability of processing quality. Currently, common grain mixing methods have several drawbacks: manual stirring relies on the experience and physical strength of operators, which is not only labor-intensive and inefficient, but also makes it difficult to guarantee consistent mixing levels each time, leading to significant errors in test results and failing to meet the needs of large-scale testing and precise processing; some equipment has a simple structure, achieving mixing only through rotation or shaking in one direction, resulting in a single movement trajectory of grain particles within the container, easily creating mixing dead zones and unsatisfactory mixing effects. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a time-saving, labor-saving and uniformly mixed grain mixing device.

[0004] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A grain mixing device includes a drive motor, a support plate, a rotary shaft, a rotating support frame, a mixing barrel assembly, and a rotation mechanism. The output end of the drive motor is connected to one end of the rotary shaft, and the other end of the rotary shaft passes through the support plate and is fixedly connected to the rotating support frame. One end of the rotation mechanism is connected to the support plate, and the other end of the rotation mechanism is connected to the mixing barrel assembly. The rotating support frame is rotatably connected to the mixing barrel assembly. The rotating support frame rotates around a first axis under the drive of the rotary shaft, and the rotation mechanism is used to drive the mixing barrel assembly to rotate around a second axis. The first axis is perpendicular to the second axis.

[0005] The beneficial effects of this utility model are as follows: the drive motor drives the rotary shaft to rotate, the rotary shaft drives the rotary support frame to rotate around the first axis (revolution), and at the same time, the self-rotation mechanism drives the mixing tank assembly to rotate around the second axis perpendicular to the first axis (rotation), realizing the compound motion of "revolution + rotation" of the mixing tank assembly, thereby enabling the grain to be stirred from different directions. This solves the problems of the existing mixing equipment having a single motion trajectory and being prone to forming mixing dead corners, as well as the disadvantages of low efficiency and poor mixing consistency of manual stirring. It can significantly improve the motion complexity of grain particles, ensure uniform mixing of grain samples, meet the requirements of large-scale testing and precise processing for mixing effect, and at the same time reduce the intensity of manual labor and improve mixing efficiency.

[0006] Based on the above technical solution, the present invention can be further improved as follows.

[0007] Furthermore, the self-rotating mechanism includes: a large gear, a small gear, and a transmission shaft. The large gear is fixedly connected to the support plate, the small gear is rotatably connected to the rotating support frame, the small gear meshes with the large gear, one end of the small gear is fixedly connected to one end of the transmission shaft, and the other end of the transmission shaft is connected to the mixing tank assembly through a second transmission component.

[0008] The beneficial effects of adopting the above-mentioned further solution are as follows: The rotation mechanism adopts a structure in which a large gear and a small gear mesh with a transmission shaft. The large gear is fixed, and the small gear meshes with the large gear and rotates when it revolves with the rotating support frame, thereby driving the transmission shaft, which is fixedly connected to the small gear, to rotate. This, in turn, drives the mixing tank assembly to rotate through the second transmission component. The mixing tank assembly can be driven to rotate without an additional power source, saving energy and having a compact structure. The gear transmission has a stable transmission ratio, and the power transmission is efficient and reliable. This allows for precise control of the rotation speed and direction of the mixing tank assembly, avoiding slippage or fluctuations during power transmission, ensuring the stability of the mixing tank assembly's rotation, further guaranteeing the uniformity and consistency of grain mixing, and improving the reliability of equipment operation.

[0009] Furthermore, the rotating support frame includes a vertical plate, a first connecting plate, and a second connecting plate. The first connecting plate and the second connecting plate are respectively fixedly disposed at both ends of the vertical plate. The mixing tank assembly is disposed between the first connecting plate and the second connecting plate, and its two ends are rotatably connected to the first connecting plate and the second connecting plate, respectively.

[0010] The beneficial effects of adopting the above-mentioned further solution are as follows: by setting a vertical plate, a first connecting plate, and a second connecting plate, and clamping and fixing the mixing tank assembly between the first and second connecting plates, the installation of the mixing tank assembly is made more stable. When the rotating support frame revolves with the rotary shaft, the mixing tank assembly can stably follow the movement. Combined with the drive of the rotation mechanism, it can ensure that the grain in the tank is fully turned over under the combined action of revolution and rotation, reducing uneven mixing caused by structural loosening, and improving the overall mixing effect and the structural stability and reliability of the equipment.

[0011] Furthermore, it also includes a first connecting shaft, one end of which is connected to one end of the second transmission assembly, and the other end of the first connecting shaft rotatably passes through the first connecting plate and is fixedly connected to the mixing tank assembly.

[0012] The beneficial effects of adopting the above-mentioned further solution are: the first connecting shaft stably transmits the power of the second transmission component to the mixing tank component, realizing the precise transmission of the rotational force. This structure avoids offset or loss during the power transmission process, ensures the stable and reliable rotation of the mixing tank component, prevents insufficient local mixing due to unstable power transmission, further ensures uniform mixing of grains in the tank, and improves the power transmission efficiency of the equipment.

[0013] Furthermore, the second transmission assembly includes a second synchronous pulley, a second driven pulley, and a second conveyor belt. The second synchronous pulley is fixedly connected to the other end of the transmission shaft, the second driven pulley is fixedly connected to one end of the first connecting shaft, and the second conveyor belt is sleeved over the second synchronous pulley and the second driven pulley.

[0014] The beneficial effects of adopting the above-mentioned further solution are: the second transmission component adopts a synchronous transmission structure of the second synchronous wheel, the second driven wheel and the second conveyor belt. Synchronous transmission can ensure a constant speed ratio, and power transmission without slippage. It can accurately control the rotation speed of the mixing barrel component, avoid inconsistent grain mixing rhythm caused by speed fluctuations, ensure uniform force on the grain in the barrel, and improve the consistency and stability of mixing.

[0015] Furthermore, it also includes a spiral shaft, one end of which is provided with an external thread, and a nut is correspondingly embedded on the second connecting plate. The spiral shaft is threadedly connected to the nut, and one end of the spiral shaft passes through the second connecting plate and is rotatably connected to the mixing tank assembly.

[0016] The beneficial effects of adopting the above-mentioned further solution are as follows: the spiral shaft is threadedly connected to the nut on the second connecting plate. By screwing the spiral shaft in and out, the mixing barrel assembly is tightened or loosened. The spiral shaft passes through the second connecting plate and is rotatably connected to the mixing barrel assembly through the bearing, so that the mixing barrel assembly can rotate on its own axis while revolving around the revolution. This effectively solves the "dead corner" problem of traditional stirring, and allows the grain particles to be fully mixed in both the axial and radial directions, further improving the mixing effect.

[0017] Furthermore, the mixing tank assembly includes a tank body, an upper end cover, and a lower end cover. The tank body is located between the upper end cover and the lower end cover, and one end of the lower end cover is fixedly connected to the other end of the first connecting shaft.

[0018] The beneficial effects of adopting the above-mentioned further solution are as follows: The mixing tank assembly consists of a tank body, an upper end cap, and a lower end cap. The closed structure prevents grain from spilling during the mixing process, ensuring a clean operating environment. Simultaneously, the detachable end caps facilitate the loading and unloading of grain samples, improving operational convenience. Furthermore, the closed structure ensures that grain particles are fully mixed within the tank, preventing incomplete mixing due to particle leakage, thus balancing practicality and mixing effectiveness.

[0019] Furthermore, it also includes a first transmission assembly, which includes a first driving wheel, a first driven wheel, and a first conveyor belt. The first driving wheel is fixedly connected to the output end of the drive motor, the first driven wheel is fixedly connected to one end of the rotary shaft, and the first conveyor belt is sleeved on the outside of the first driving wheel and the first driven wheel.

[0020] The beneficial effects of adopting the above-mentioned further solution are as follows: By setting a first transmission component, which includes a first driving wheel, a first driven wheel, and a first conveyor belt, the power of the drive motor can be efficiently transmitted to the rotating shaft, achieving stable revolution of the mixing tank assembly. Simultaneously, the belt drive has a buffering and shock-absorbing effect, reducing the impact of motor operation on revolution stability, ensuring uniform revolution speed of the mixing tank assembly, improving the consistency of grain mixing, reducing equipment wear, and extending service life.

[0021] Furthermore, it also includes a protective housing, with the support plate fixedly disposed in the middle of the protective housing, dividing the protective housing into a first chamber and a second chamber. The rotating support frame and the mixing tank assembly are located in the second chamber, while the drive motor and the first transmission assembly are located in the first chamber.

[0022] The beneficial effects of adopting the above-mentioned further solution are as follows: The protective enclosure is divided into two chambers by a support plate, isolating the rotating components (rotating support frame, mixing tank assembly, etc.) from the power components (drive motor, etc.), preventing exposed rotating components from causing injury and reducing safety hazards. It also reduces interference from the external environment (such as dust and impurities) on the internal components, ensuring stable equipment operation. Furthermore, the first chamber protects precision components such as the motor from grain dust contamination, while the enclosed second chamber provides space for the rotating support frame and mixing tank assembly to rotate and stir. Simultaneously, it prevents grain particles from splashing during stirring, improving operational safety and environmental cleanliness.

[0023] Furthermore, a control panel is provided on the outside of the protective enclosure corresponding to the first chamber, and the control panel is electrically connected to the controller. The second chamber is provided with a door for opening and closing.

[0024] The beneficial effects of adopting the above-mentioned further solution are: Automated control of the drive motor is achieved through the control panel, reducing the subjectivity of manual operation; corresponding mixing parameters (such as rotation speed and time) can be set according to different types of grains, solving the problem of mixing differences caused by reliance on experience in manual stirring; opening and closing the door facilitates the loading and unloading of the mixing tank components in the second chamber, improving operational convenience. Automated control enhances the intelligence and efficiency of the equipment, meeting the needs of large-scale testing for standardized operations. Attached Figure Description

[0025] Figure 1 This is a top view of the mixing device of this utility model; Figure 2 This is a cross-sectional view (AA) of the mixing device of this utility model; Figure 3 This is a partial view of the mixing device of this utility model; Figure 4 This is another partial view of the mixing device of this utility model (rotation structure); Figure 5 This is another partial view of the mixing device of this utility model (the connection relationship between the spiral shaft and the mixing tank assembly). Figure 6 This is a schematic diagram of the overall mixing device of this utility model.

[0026] The attached diagram lists the components represented by each number as follows: 1. Drive motor; 2. First transmission assembly; 21. First driving wheel; 22. First driven wheel; 23. First conveyor belt; 3. Support plate; 4. Rotary shaft; 51. Support frame; 510. Vertical plate; 511. First connecting plate; 512. Second connecting plate; 52. Mixing tank assembly; 521. Tank body; 522. Upper end cover; 523. Lower end cover; 61. Large gear; 62. Small gear; 63. Transmission shaft; 7. Second transmission assembly; 71. Second synchronous wheel; 72. Second driven wheel; 73. Second conveyor belt; 8. First connecting shaft; 9. Spiral shaft; 10. Protective housing; 11. Control panel; 12. Opening and closing door; 13. Master control button; 14. Emergency stop button; 15. Adapter; 16. Guide pin. Detailed Implementation

[0027] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0028] like Figures 1-6 As shown, this embodiment provides a grain mixing device, including a drive motor 1, a support plate 3, a rotary shaft 4, a rotating support frame 51, a mixing tank assembly 52, and a rotation mechanism. The output end of the drive motor 1 is connected to one end of the rotary shaft 4, and the other end of the rotary shaft 4 passes through the support plate 3 and is fixedly connected to the rotating support frame 51. One end of the rotation mechanism is connected to the support plate 3, and the other end of the rotation mechanism is connected to the mixing tank assembly 52. ​​The rotating support frame 51 is rotatably connected to the mixing tank assembly 52. ​​The rotating support frame 51 rotates around a first axis under the drive of the rotary shaft 4, and the rotation mechanism is used to drive the mixing tank assembly 52 to rotate around a second axis, wherein the first axis is perpendicular to the second axis.

[0029] The drive motor 1 drives the rotary shaft 4 to rotate, and the rotary shaft 4 drives the rotary support frame 51 to rotate around the first axis (revolution). At the same time, the mixing tank assembly 52 is driven to rotate around the second axis perpendicular to the first axis (rotation) through the rotation mechanism. This realizes the compound motion of the mixing tank assembly 52 of "revolution + rotation", which can stir the grain from different directions. This solves the problems of the single motion trajectory and easy formation of mixing dead corners in the existing mixing equipment, as well as the disadvantages of low efficiency and poor mixing consistency of manual stirring. It can greatly improve the motion complexity of grain particles, ensure uniform mixing of grain samples, meet the requirements of large-scale testing and precise processing for mixing effect, and at the same time reduce the intensity of manual labor and improve mixing efficiency.

[0030] Based on the above technical solution, the self-rotating mechanism includes: a large gear 61, a small gear 62, and a transmission shaft 63. The large gear 61 is fixedly connected to the support plate 3, the small gear 62 is rotatably connected to the rotating support frame 51, the small gear 62 meshes with the large gear 61, one end of the small gear 62 is fixedly connected to one end of the transmission shaft 63, and the other end of the transmission shaft 63 is connected to the mixing tank assembly 52 through the second transmission component 7.

[0031] The rotation mechanism employs a structure where a large gear 61 and a small gear 62 mesh with a transmission shaft 63. The large gear 61 is fixed, while the small gear 62 meshes with and rotates with the rotating support frame 51, thereby driving the transmission shaft 63, which is fixedly connected to the small gear 62, to rotate. This, in turn, drives the mixing tank assembly 52 to rotate via the second transmission component 7. No additional power source is required to drive the mixing tank assembly 52 to rotate, saving energy and resulting in a compact structure. The gear transmission has a stable transmission ratio, efficient and reliable power transmission, and thus precisely controls the rotation speed and direction of the mixing tank assembly 52, avoiding slippage or fluctuations during power transmission, ensuring the stability of the mixing tank assembly 52's rotation, further guaranteeing the uniformity and consistency of grain mixing, and improving the reliability of equipment operation.

[0032] Specifically, pinion 62 is a bevel gear.

[0033] Specifically, the large gear 61 is located on the side of the support plate 3 facing the rotating support frame 51.

[0034] Based on the above technical solution, the rotating support frame 51 includes a vertical plate 510, a first connecting plate 511 and a second connecting plate 512. The first connecting plate 511 and the second connecting plate 512 are respectively fixedly disposed at both ends of the vertical plate 510. The mixing tank assembly 52 is disposed between the first connecting plate 511 and the second connecting plate 512, and its two ends are respectively rotatably connected to the first connecting plate 511 and the second connecting plate 512.

[0035] By setting up a vertical plate 510, a first connecting plate 511, and a second connecting plate 512, and clamping and fixing the mixing tank assembly 52 between the first connecting plate 511 and the second connecting plate 512, the installation of the mixing tank assembly 52 is made more stable. When the rotating support frame 51 revolves with the rotary shaft 4, the mixing tank assembly 52 can stably follow the movement. Combined with the drive of the rotation mechanism, it can ensure that the grain in the tank is fully turned over under the combined action of revolution and rotation, reducing uneven mixing caused by structural loosening, and improving the overall mixing effect and the structural stability and reliability of the equipment.

[0036] Specifically, reinforcing ribs are provided at both ends of the vertical plate 510, the reinforcing ribs connect the vertical plate 510 and the first connecting plate 511, and the reinforcing ribs connect the vertical plate 510 and the second connecting plate 512.

[0037] Specifically, the vertical plate 510 has a clearance groove on the side facing the support plate 3, so that the large gear 61 is placed in the clearance groove. The vertical plate 510 also has a clearance opening at the end near the first connecting plate 511, so that the small gear 62 is just located at the clearance opening. This structural design is more compact and makes the force transmission more stable and reliable.

[0038] Based on the above technical solution, it also includes a first connecting shaft 8, one end of the first connecting shaft 8 is connected to one end of the second transmission component 7, and the other end of the first connecting shaft 8 rotatably passes through the first connecting plate 511 and is fixedly connected to the mixing tank component 52.

[0039] The first connecting shaft 8 stably transmits the power of the second transmission component 7 to the mixing tank assembly 52, achieving precise transmission of the rotational force. This structure avoids deviation or loss during power transmission, ensures stable and reliable rotation of the mixing tank assembly 52, prevents insufficient local mixing due to unstable power transmission, further ensures uniform mixing of grains in the tank, and improves the power transmission efficiency of the equipment.

[0040] Based on the above technical solution, the second transmission assembly 7 includes a second synchronous pulley 71, a second driven pulley 72, and a second conveyor belt 73. The second synchronous pulley 71 is fixedly connected to the other end of the transmission shaft 63, the second driven pulley 72 is fixedly connected to one end of the first connecting shaft 8, and the second conveyor belt 73 is sleeved on the second synchronous pulley 71 and the second driven pulley 72.

[0041] The second transmission component 7 adopts a synchronous transmission structure of the second synchronous wheel 71, the second driven wheel 72 and the second conveyor belt 73. The synchronous transmission can ensure a constant speed ratio and no slippage in power transmission. It can precisely control the rotation speed of the mixing barrel component 52, avoid inconsistent grain mixing rhythm caused by speed fluctuations, ensure uniform force on the grain in the barrel, and improve the consistency and stability of mixing.

[0042] Based on the above technical solution, a spiral shaft 9 is also included. One end of the spiral shaft 9 is provided with an external thread, and a nut is correspondingly embedded on the second connecting plate 512. The spiral shaft 9 is threadedly connected to the nut, and one end of the spiral shaft 9 passes through the second connecting plate 512 and is rotatably connected to the mixing tank assembly 52.

[0043] The spiral shaft 9 is threadedly connected to the nut on the second connecting plate 512. By screwing the spiral shaft 9 in and out, the mixing tank assembly 52 is tightened or loosened. The spiral shaft 9 passes through the second connecting plate 512 and is rotatably connected to the mixing tank assembly 52 through the bearing, so that the mixing tank assembly 52 can rotate on its own axis while revolving around the revolution. This effectively solves the "dead zone" problem of traditional stirring, and allows the grain particles to be fully mixed in both the axial and radial directions, further improving the mixing effect.

[0044] Specifically, a handle is provided at the other end of the spiral shaft 9. By holding the handle and rotating the spiral shaft 9, the mixing tank assembly 52 can be tightened or loosened.

[0045] Based on the above technical solution, the mixing tank assembly 52 includes a tank body 521, an upper end cover 522 and a lower end cover 523. The tank body 521 is located between the upper end cover 522 and the lower end cover 523. One end of the lower end cover 523 is fixedly connected to the other end of the first connecting shaft 8.

[0046] The mixing tank assembly 52 consists of a tank body 521, an upper end cap 522, and a lower end cap 523. The enclosed structure prevents grain from spilling during mixing, ensuring a clean operating environment. The detachable end caps facilitate the loading and unloading of grain samples, improving operational convenience. Furthermore, the enclosed structure ensures that grain particles are fully mixed within the tank, preventing incomplete mixing due to particle leakage, thus balancing practicality and mixing effectiveness.

[0047] Specifically, a groove is provided on the side of the lower end cap 523 that abuts against the barrel body 521, which makes the placement and clamping of the barrel body 521 more reliable and stable.

[0048] Specifically, the upper cover 522 is provided with an adapter 15, and a bearing is provided inside the adapter 15, so that the adapter 15 and the mixing tank assembly 52 as a whole rotate under the drive of the first connecting shaft 8.

[0049] Specifically, a guide pin 16 is provided on the upper end cover 522 at a position corresponding to the spiral shaft 9, and a guide hole is provided on the spiral shaft 9. The guide pin 16 is in the guide hole, so as to guide the mixing tank assembly 52 when the spiral shaft 9 presses or loosens.

[0050] Specifically, the barrel body 521 is a square barrel or a round barrel.

[0051] Based on the above technical solution, a first transmission component 2 is also included. The first transmission component 2 includes a first driving wheel 21, a first driven wheel 22 and a first conveyor belt 23. The first driving wheel 21 is fixedly connected to the output end of the drive motor 1, the first driven wheel 22 is fixedly connected to one end of the rotary shaft 4, and the first conveyor belt 23 is sleeved on the outside of the first driving wheel 21 and the first driven wheel 22.

[0052] By setting up a first transmission assembly 2, which includes a first driving wheel 21, a first driven wheel 22, and a first conveyor belt 23, the power of the drive motor 1 can be efficiently transmitted to the rotating shaft 4, achieving stable revolution of the mixing tank assembly 52. ​​Simultaneously, the belt drive has a buffering and shock-absorbing effect, reducing the impact of motor operation on revolution stability, ensuring uniform revolution speed of the mixing tank assembly 52, improving the consistency of grain mixing, reducing equipment wear, and extending service life.

[0053] Based on the above technical solution, it also includes a protective box 10, the support plate 3 is fixedly disposed in the middle of the protective box 10, and the protective box 10 is divided into a first chamber and a second chamber. The rotating support frame 51 and the mixing tank assembly 52 are located in the second chamber, and the drive motor 1 and the first transmission assembly 2 are located in the first chamber.

[0054] The protective enclosure 10 is divided into two chambers by the support plate 3, separating the rotating components (rotating support frame 51, mixing tank assembly 52, etc.) from the power components (drive motor 1, etc.). This prevents exposed rotating components from causing injury and reduces safety hazards. It also reduces interference from the external environment (such as dust and impurities) on the internal components, ensuring stable operation of the equipment. In addition, the first chamber protects precision components such as the motor from grain dust contamination, while the enclosed second chamber provides space for the rotating support frame 51 and mixing tank assembly 52 to rotate and stir. At the same time, it prevents grain particles from splashing during stirring, improving operational safety and environmental cleanliness.

[0055] Based on the above technical solution, a control panel 11 is provided on the outside of the protective box 10 corresponding to the first chamber. The control panel 11 and the drive motor 1 are both electrically connected to the controller. The second chamber is provided with a switch door 12.

[0056] The control panel 11 enables automated control of the drive motor 1, reducing the subjectivity of manual operation. Simultaneously, it allows setting appropriate mixing parameters (such as rotation speed and time) for different types of grains, resolving mixing discrepancies caused by reliance on experience in manual stirring. The opening and closing door 12 facilitates the placement and removal of the mixing tank assembly 52 in the second chamber, enhancing operational convenience. Automated control improves the equipment's intelligence and efficiency, meeting the standardized operational requirements of large-scale testing.

[0057] In a specific example, the grain mixing process is as follows: Open the switch door 12, take out the barrel body 521, pour the grain to be mixed into the barrel, place the barrel body 521 on the lower end cover 523, and fix the barrel body 521 between the upper end cover 522 and the lower end cover 523 by turning the screw shaft 9, and close the switch door 12. Start the main control button 13, power on the equipment, click the "Start" button on the control panel 11, start the drive motor 1, and drive the rotary shaft 4 to rotate through the first transmission component 2, so that the rotating support frame 51 and the mixing barrel assembly 52 rotate around the rotary shaft 4, that is, the mixing barrel assembly 52 performs a 360-degree revolution. At the same time as the rotating support frame 51 rotates, the small gear 62 meshes with the large gear 61 and drives the transmission shaft 63 to rotate synchronously. The transmission shaft 63 transmits the force through the second transmission component 7 and then through the first connecting shaft 8, thereby driving the mixing barrel assembly 52 to rotate, thus realizing the rotation of the mixing barrel assembly 52. The device can also adjust the operating parameters (such as speed or mixing time) through the control panel 11 according to the type of grain and the amount of mixing. After the mixing is completed, the equipment will stop automatically. Press the emergency stop button 14 to cut off the power to the equipment, open the switch door 12, turn the screw shaft 9 to loosen the barrel body 521, take out the barrel body 521, and pour out the mixed grain material.

[0058] The mixing device in this embodiment of the invention enables the mixing tank assembly 52 to rotate on its own axis while revolving (around the rotation axis 4). This solves the problems of existing mixing equipment having a single motion trajectory and being prone to forming mixing dead zones, as well as the drawbacks of low efficiency and poor mixing consistency of manual stirring. This device can significantly improve the motion complexity of grain particles, ensure uniform mixing of grain samples, meet the requirements of large-scale testing and precise processing for mixing effect, and at the same time reduce the intensity of manual labor and improve mixing efficiency.

[0059] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0060] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0061] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0062] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0063] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0064] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A grain mixing device, characterized in that, The device includes a drive motor (1), a support plate (3), a rotary shaft (4), a rotating support frame (51), a mixing tank assembly (52), and a rotation mechanism. The output end of the drive motor (1) is connected to one end of the rotary shaft (4). The other end of the rotary shaft (4) passes through the support plate (3) and is fixedly connected to the rotating support frame (51). One end of the rotation mechanism is connected to the support plate (3), and the other end of the rotation mechanism is connected to the mixing tank assembly (52). The rotating support frame (51) is rotatably connected to the mixing tank assembly (52). The rotating support frame (51) rotates around a first axis under the drive of the rotary shaft (4). The rotation mechanism is used to drive the mixing tank assembly (52) to rotate around a second axis. The first axis is perpendicular to the second axis.

2. The grain mixing device according to claim 1, characterized in that, The self-rotating mechanism includes a large gear (61), a small gear (62), and a drive shaft (63). The large gear (61) is fixedly connected to the support plate (3), the small gear (62) is rotatably connected to the rotating support frame (51), the small gear (62) meshes with the large gear (61), one end of the small gear (62) is fixedly connected to one end of the drive shaft (63), and the other end of the drive shaft (63) is connected to the mixing tank assembly (52) through a second transmission component (7).

3. The grain mixing device according to claim 2, characterized in that, The rotating support frame (51) includes a vertical plate (510), a first connecting plate (511) and a second connecting plate (512). The first connecting plate (511) and the second connecting plate (512) are respectively fixedly disposed at both ends of the vertical plate (510). The mixing tank assembly (52) is disposed between the first connecting plate (511) and the second connecting plate (512), and its two ends are rotatably connected to the first connecting plate (511) and the second connecting plate (512) respectively.

4. The grain mixing device according to claim 3, characterized in that, It also includes a first connecting shaft (8), one end of which is connected to one end of the second transmission assembly (7), and the other end of the first connecting shaft (8) rotates through the first connecting plate (511) and is fixedly connected to the mixing tank assembly (52).

5. The grain mixing device according to claim 4, characterized in that, The second transmission assembly (7) includes a second synchronous pulley (71), a second driven pulley (72), and a second conveyor belt (73). The second synchronous pulley (71) is fixedly connected to the other end of the transmission shaft (63), the second driven pulley (72) is fixedly connected to one end of the first connecting shaft (8), and the second conveyor belt (73) is sleeved on the second synchronous pulley (71) and the second driven pulley (72).

6. The grain mixing device according to claim 5, characterized in that, It also includes a spiral shaft (9), one end of which is provided with an external thread, and a nut is correspondingly embedded on the second connecting plate (512). The spiral shaft (9) is threadedly connected to the nut, and one end of the spiral shaft (9) passes through the second connecting plate (512) and is rotatably connected to the mixing tank assembly (52).

7. The grain mixing device according to claim 4, characterized in that, The mixing tank assembly (52) includes a tank body (521), an upper end cover (522) and a lower end cover (523). The tank body (521) is located between the upper end cover (522) and the lower end cover (523). One end of the lower end cover (523) is fixedly connected to the other end of the first connecting shaft (8).

8. A grain mixing device according to any one of claims 1-7, characterized in that, It also includes a first transmission assembly (2), which includes a first driving wheel (21), a first driven wheel (22) and a first conveyor belt (23). The first driving wheel (21) is fixedly connected to the output end of the drive motor (1), the first driven wheel (22) is fixedly connected to one end of the rotary shaft (4), and the first conveyor belt (23) is sleeved on the outside of the first driving wheel (21) and the first driven wheel (22).

9. The grain mixing device according to claim 8, characterized in that, It also includes a protective box (10), the support plate (3) is fixedly installed in the middle of the protective box (10), and the protective box (10) is divided into a first chamber and a second chamber. The rotating support frame (51) and the mixing barrel assembly (52) are located in the second chamber, and the drive motor (1) and the first transmission assembly (2) are located in the first chamber.

10. The grain mixing device according to claim 9, characterized in that, A control panel (11) is provided on the outside of the protective box (10) corresponding to the first chamber. The control panel (11) is electrically connected to the drive motor (1). The second chamber is provided with a door (12).

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