Power device and stirring equipment

Abstract

The invention discloses a power device and stirring equipment. The technical problem that in the prior art, single-motor-driven stirring equipment cannot operate when a motor breaks down is solved. The power device comprises a first power assembly, a second power assembly, a bevel gear transmission box and a speed reducer. The first power assembly comprises a first motor and a first output shaft in transmission connection with the first motor. The second power assembly comprises a second motor and a second output shaft in transmission connection with the second motor. The bevel gear transmission box comprises a box body and a third output shaft, the third output shaft is in transmission connection with one of the first output shaft and the second output shaft, and the third output shaft is connected with the input end of the speed reducer. According to the power device, power redundancy is formed through the double-motor design, when one motor breaks down, the other motor can continue to provide power, normal operation of a stirring system is maintained, and therefore production continuity is guaranteed, and production losses caused by equipment faults are reduced.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of power, and particularly relates to a power device and a stirring equipment. BACKGROUND

[0002] A seed tank of a core power device for Bayer process aluminum hydroxide production adopts a crystallization separation process to realize efficient separation of aluminum hydroxide and recovery of high caustic ratio mother liquor by inducing crystallization of sodium aluminate solution. The device body is in a cylindrical flat bottom structure, and a mechanical driving stirring system is configured to continuously operate to form a three-dimensional circulating flow mode of the solution. The stirring action has dual technical functions: one is to effectively prevent deposition and scarring of aluminum hydroxide microcrystals by forced convection to maintain the cleanliness of the bottom of the tank; the other is to promote uniform heat diffusion in the system to ensure that the solution completes grain directional growth in the controlled cooling process. When the power device is running, the shear flow generated by the mechanical paddle cooperates with the axial flow to not only realize the homogenization of solid-liquid suspension, but also accelerate the mass transfer process at the crystal-solution interface, thereby stably producing aluminum hydroxide products meeting the particle size distribution, and optimizing the circulation efficiency of the mother liquor components.

[0003] During the operation of the seed tank, accidental stop of the stirring system will cause aluminum hydroxide particles to deposit. When the power grid is powered off, the mechanical stirring stops running, and the crystal particles in the supersaturated solution quickly settle and accumulate, which not only causes the production process to be interrupted, but also requires a large amount of manpower for tank cleaning operations, significantly increasing production costs.

[0004] The existing stirring equipment of the seed tank is driven by a single motor. To prevent the problem of deposition caused by power failure, a dual-power mode is adopted to switch to standby power immediately to continue driving the stirring rotation when the power is off. However, when the motor fails, the stirring cannot rotate, which will also cause the problem of deposition in the seed tank. SUMMARY

[0005] To solve the above technical problems, the application discloses a power device and a stirring equipment.

[0006] The technical scheme adopted to achieve the purpose of the application is as follows: in the first aspect of the application, the application discloses a power device, which comprises:

[0007] The first power assembly comprises a first motor and a first output shaft in transmission connection with the first motor;

[0008] The second power assembly comprises a second motor and a second output shaft in transmission connection with the second motor;

[0009] The bevel gear transmission box comprises a box body and a third output shaft, the third output shaft is in rotational connection with the box body, and the third output shaft is alternatively in transmission connection with the first output shaft and the second output shaft;

[0010] A speed reducer, the third output shaft being connected with an input end of the speed reducer.

[0011] In some embodiments, the bevel gear transmission box further comprises a first bevel gear, a second bevel gear, a third bevel gear and a fourth bevel gear, the first bevel gear being mounted on the first output shaft, the second bevel gear being mounted on the second output shaft, the third bevel gear being rotatably connected with the box body, the fourth bevel gear being rotatably connected with the third bevel gear through a fixing frame, and the rotation axis of the fourth bevel gear being perpendicular to the rotation axis of the third bevel gear, the fourth bevel gear being engaged with the first bevel gear and the second bevel gear, the first output shaft and the second output shaft being arranged in parallel, at least one of the first output shaft and the second output shaft being coaxially arranged with the third bevel gear, and the third bevel gear being drivingly arranged with the third output shaft.

[0012] In some embodiments, the bevel gear transmission box further comprises a fifth bevel gear, the fifth bevel gear being rotatably connected with the box body, the fifth bevel gear being mounted on the third output shaft, and the fifth bevel gear being engaged with the third bevel gear.

[0013] In some embodiments, the tooth surface of the third bevel gear is arranged towards the second output shaft.

[0014] In some embodiments, the fourth bevel gear is arranged in at least two, each of the fourth bevel gears being connected with the third bevel gear through the fixing frame, and each of the fourth bevel gears being uniformly arranged around the circumference of the third bevel gear.

[0015] In some embodiments, a through hole is arranged on the third bevel gear, the first output shaft being arranged in the through hole, and the first output shaft being rotatably connected with the third bevel gear.

[0016] In some embodiments, the first power assembly further comprises a first worm and a first turbine, the first motor being drivingly connected with the first worm, the first turbine being mounted on the first output shaft, and the first turbine being engaged with the first worm.

[0017] The second power assembly further comprises a second worm and a second turbine, the second motor being drivingly connected with the second worm, the second turbine being mounted on the second output shaft, and the second turbine being engaged with the second worm.

[0018] In some embodiments, the first power assembly further comprises a first electromagnetic brake, the first electromagnetic brake being electrically connected with the first motor.

[0019] The second power assembly further comprises a second electromagnetic brake, the second electromagnetic brake being electrically connected with the second motor.

[0020] In some embodiments, the reducer includes a planetary gear reduction structure, the third output shaft is connected to the sun gear in the planetary gear reduction structure, and a fourth output shaft is provided on the planetary gear carrier in the planetary gear reduction structure.

[0021] The technical solution adopted to achieve the purpose of this application is as follows: In the second aspect of this application, the present invention also discloses a stirring device, which includes a stirring device and the power device described in the first aspect above, wherein the output end of the reducer is connected to the stirring device in a transmission manner.

[0022] As can be seen from the above technical solution, the power device disclosed in this application includes a first power assembly, a second power assembly, a bevel gear transmission box, and a reducer. The first power assembly includes a first motor and a first output shaft that is drivenly connected to the first motor. The second power assembly includes a second motor and a second output shaft that is drivenly connected to the second motor. The bevel gear transmission box includes a housing and a third output shaft, the third output shaft being rotatably connected to the housing, and the third output shaft being selectively drivenly connected to both the first output shaft and the second output shaft, and the third output shaft being connected to the input end of the reducer.

[0023] The power unit disclosed in this application has a dual-motor design to form power redundancy. When one motor fails, the other motor can continue to provide power to maintain the normal operation of the mixing system, thereby ensuring the continuity of production and reducing production losses caused by equipment failure. Attached Figure Description

[0024] To enable those skilled in the art to more clearly understand this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0025] Figure 1 This is a schematic diagram of the power unit in one or more embodiments of this application;

[0026] Figure 2 for Figure 1 Schematic diagram of the internal structure of the power unit;

[0027] Figure 3 for Figure 2 Front view schematic diagram of the power unit;

[0028] Figure 4 for Figure 3Schematic diagram of a bevel gear transmission box;

[0029] Figure 5 This is a schematic diagram of a stirring device in one or more embodiments of this application.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1000, Power unit; 100, First power assembly; 110, First motor; 120, First output shaft; 130, First worm gear; 140, First turbine; 150, First electromagnetic brake; 200, Second power assembly; 210, Second motor; 220, Second output shaft; 230, Second worm gear; 240, Second turbine; 250, Second electromagnetic brake; 300, Bevel gear transmission box; 310, Box body; 320, Third output shaft; 330, First bevel gear; 340, Second bevel gear; 350, Third bevel gear; 360, Fourth bevel gear; 370, Fixing frame; 380, Fifth bevel gear; 400, Reducer; 410, Sun gear; 420, Planetary gear support; 430, Fourth output shaft; 2000, Stirring device. Detailed Implementation

[0032] To enable those skilled in the art to more clearly understand this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0033] Furthermore, reference numerals and / or reference letters may be repeated in different examples in this application. Such repetition is for simplification and clarity purposes and does not in itself indicate a relationship between the various embodiments and / or settings discussed. In addition, this application provides examples of various specific processes and materials; however, those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0034] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0035] This invention discloses a power device 1000, which can solve the technical problem that single-motor driven stirring equipment cannot operate when the motor fails in the prior art.

[0036] The technical solution of this application will be described in detail below through specific embodiments:

[0037] See Figure 1 andFigure 2 In a first aspect embodiment of this application, a power unit 1000 is disclosed, comprising a first power assembly 100, a second power assembly 200, a bevel gear transmission box 300, and a reducer 400. The first power assembly 100 includes a first motor 110 and a first output shaft 120 drivenly connected to the first motor 110. The second power assembly 200 includes a second motor 210 and a second output shaft 220 drivenly connected to the second motor 210. The bevel gear transmission box 300 includes a housing 310 and a third output shaft 320, the third output shaft 320 being rotatably connected to the housing 310, and selectively connected to either the first output shaft 120 or the second output shaft 220, and connected to the input end of the reducer 400.

[0038] The power unit 1000 disclosed in this embodiment adopts a dual-motor design to form power redundancy. When one motor fails, the other motor can continue to provide power to maintain the normal operation of the mixing system, thereby ensuring the continuity of production and reducing production losses caused by equipment failure.

[0039] The third output shaft 320 in the bevel gear transmission box 300 is rotatably connected to the box body 310, and is selectively connected to the first output shaft 120 and the second output shaft 220. This design allows for flexible switching of power between the two motors. In actual operation, the power supply can be flexibly selected based on factors such as the motor's operating status and load. For example, if the first motor 110 experiences a minor fault but is not completely unresponsive, the system can switch to the second motor 210 to provide time for the repair or replacement of the first motor 110, without affecting the normal operation of the mixing system. This flexible transmission switching mechanism greatly improves the reliability and adaptability of the entire power unit 1000, enabling it to better cope with complex and ever-changing industrial production environments.

[0040] See Figure 3 and Figure 4 In one embodiment, the bevel gear transmission box 300 further includes a first bevel gear 330, a second bevel gear 340, a third bevel gear 350, and a fourth bevel gear 360. The first bevel gear 330 is mounted on the first output shaft 120, and the second bevel gear 340 is mounted on the second output shaft 220.

[0041] This design allows power to be transmitted from the first motor 110 to the fourth bevel gear 360 via the first output shaft 120 and the first bevel gear 330, thereby driving subsequent transmission components, when the second motor 210 is operating. Power is transmitted from the second output shaft 220 and the second bevel gear 340 to the fourth bevel gear 360. This meshing relationship enables convenient and efficient switching of power sources between the two motors. If one motor fails or requires maintenance, the system can be quickly switched to the other, ensuring continuous and stable operation of the mixing system and reducing production losses caused by power interruptions.

[0042] The third bevel gear 350 is rotatably connected to the housing 310. The fourth bevel gear 360 is rotatably connected to the third bevel gear 350 via a fixing bracket 370, and the rotation axis of the fourth bevel gear 360 is perpendicular to the rotation axis of the third bevel gear 350. The fourth bevel gear 360 meshes with both the first bevel gear 330 and the second bevel gear 340.

[0043] This structure forms a stable power transmission framework. Power is transmitted from the first bevel gear 330 or the second bevel gear 340 to the fourth bevel gear 360, and then through the third bevel gear 350 to the third output shaft 320. The entire transmission process has a clear path and a stable structure, reducing energy loss and vibration during power transmission, improving power transmission efficiency, and ensuring that the stirring device 2000 can operate at a stable speed and force to meet production needs.

[0044] The first output shaft 120 and the second output shaft 220 are arranged in parallel, and the third bevel gear 350 is coaxially arranged with at least one of the first output shaft 120 and the second output shaft 220. The third bevel gear 350 is configured to drive the third output shaft 320.

[0045] This parallel and coaxial layout makes the entire bevel gear transmission box 300 more compact, reducing the space occupied by transmission components and facilitating installation and layout within limited equipment space. Especially in industrial equipment such as sorting tanks, where space is typically limited, this compact structural design can make full use of space, improving the overall integration and space utilization of the equipment.

[0046] In one embodiment, the first output shaft 120 and the second output shaft 220 are coaxially arranged. In this case, the first bevel gear 330 and the second bevel gear 340 can be of equal size, and multiple fourth bevel gears 360 can be configured. The power provided by the two motors is transmitted to the subsequent transmission components through bevel gears of equal size, achieving a more uniform power distribution. During the operation of the mixing system, this uniform power distribution ensures that the mixing device 2000 operates at a stable speed and force, reducing vibration and fluctuations caused by uneven power, and improving the stability of the mixing operation and product quality. The uniform power distribution makes the load on each transmission component more even, avoiding excessive wear of local components due to excessive load. For example, the wear of components such as the reducer 400 and the mixing shaft will be relatively reduced under uniform power, thereby extending the service life of the entire transmission system and mixing equipment, reducing the frequency of equipment maintenance and replacement, and lowering production costs.

[0047] When the first output shaft 120 and the second output shaft 220 are parallel but not on the same axis, it is only necessary to make one of the first bevel gear 330 and the second bevel gear 340 larger than the other. However, at this time, only one fourth bevel gear 360 can be set for transmission.

[0048] In one embodiment, the bevel gear transmission housing 300 further includes a fifth bevel gear 380. The fifth bevel gear 380 is rotatably connected to the housing 310, mounted on the third output shaft 320, and meshes with the third bevel gear 350.

[0049] The third bevel gear 350 meshes with the fifth bevel gear 380, allowing for smooth directional changes in power transmission. In a mixing system, the mixing device 2000 typically requires specific rotation directions and angles to meet process requirements such as solid-liquid suspension homogenization. Through the meshing of the third bevel gear 350 and the fifth bevel gear 380, the power transmitted from the first bevel gear 330 or the second bevel gear 340 can be transmitted to the third output shaft 320 according to the required rotation direction and angle, thereby driving the mixing device 2000 to operate stably and ensuring efficient and accurate completion of the mixing operation.

[0050] In one embodiment, the tooth surface of the third bevel gear 350 is oriented towards the second output shaft 220, which makes the bevel gear transmission box 300 more compact overall. In the bevel gear transmission box 300, the layout of each component needs to fully consider space utilization. When the tooth surface of the third bevel gear 350 is oriented towards the second output shaft 220, the limited space in the direction of the second output shaft 220 can be utilized more effectively compared to other orientations. In industrial equipment, especially in devices like mixing systems, internal space is often limited, requiring the accommodation of multiple components such as motors, transmission components, and mixing devices 2000. This design avoids excessive lateral extension of the third bevel gear 350, reducing the width of the transmission box in the horizontal direction, thereby providing more space for the installation and layout of other components, making the entire device more rational and compact in terms of spatial layout.

[0051] Furthermore, compared to having the tooth surface of the third bevel gear 350 facing away from the second output shaft 220, this reduces the mutual interference between the third bevel gear 350, the first output shaft 120, and the first motor 110. Also, since the first bevel gear 330 and the second bevel gear 340 are driven by the fourth bevel gear 360, there is a certain gap between the first output shaft 120 and the second output shaft 220, which facilitates the installation of the mounting bracket 370.

[0052] In one embodiment, at least two fourth bevel gears 360 are provided. Each fourth bevel gear 360 is connected to the third bevel gear 350 via a fixing bracket 370, and the fourth bevel gears 360 are evenly arranged around the circumference of the third bevel gear 350.

[0053] Multiple fourth bevel gears 360 are evenly arranged around the third bevel gear 350 in the circumference. When power is transmitted from the third bevel gear 350 to each of the fourth bevel gears 360, a more uniform power distribution can be achieved. The load borne by each fourth bevel gear 360 is relatively balanced, avoiding component wear and failure caused by excessive local load, and extending the service life of the transmission components.

[0054] The inclusion of at least two fourth bevel gears 360 increases the redundancy of power transmission. Even if one fourth bevel gear 360 fails or is damaged, the others can still continue to transmit power, ensuring the basic operation of the mixing system and preventing immediate equipment shutdown. This redundancy design improves the equipment's emergency response capability and fault tolerance, reducing production losses caused by malfunctions.

[0055] In one embodiment, the third bevel gear 350 is provided with a through hole, the first output shaft 120 passes through the through hole, and the first output shaft 120 is rotatably connected to the third bevel gear 350.

[0056] This design makes full use of the internal space of the third bevel gear 350, avoiding the need to occupy additional external space to arrange the connection structure between the first output shaft 120 and the third bevel gear 350. This makes the spatial layout of the entire transmission box more reasonable and compact, reduces the size of the equipment in the horizontal or vertical direction, and facilitates installation and layout in a limited space.

[0057] In one embodiment, the first power assembly 100 further includes a first worm gear 130 and a first turbine gear 140. A first motor 110 is driven by the first worm gear 130, and the first turbine gear 140 is mounted on a first output shaft 120 and meshes with the first worm gear 130. The second power assembly 200 further includes a second worm gear 230 and a second turbine gear 240. A second motor 210 is driven by the second worm gear 230, and the second turbine gear 240 is mounted on a second output shaft 220 and meshes with the second worm gear 230.

[0058] Worm gear drives are characterized by a large number of meshing teeth and a high degree of overlap, which makes power transmission smoother and reduces vibration and impact. In a mixing system, stable power transmission ensures that the mixing device operates at a stable speed and force, improving the quality and efficiency of the mixing operation and avoiding problems such as uneven mixing caused by power fluctuations.

[0059] The self-locking effect of the worm gear is a major advantage of this design. After the mixing system stops operating, the self-locking function prevents the mixing device 2000 from rotating unexpectedly due to external forces (such as the weight of the material or inertial forces). The self-locking function ensures that the operation of the first power assembly 100 and the second power assembly 200 does not interfere with each other. When the first power assembly 100 is operating while the second power assembly 200 is not, the first bevel gear 330 rotates, and the second bevel gear 340 rotates under the influence of the fourth bevel gear 360. At this time, the first bevel gear 330 drives the fourth bevel gear 360 to rotate circumferentially, thereby driving the third bevel gear 350 to rotate, and ultimately driving the third output shaft 320 to rotate. Correspondingly, when the second power assembly 200 is operating while the first power assembly 100 is not operating, the second bevel gear 340 can also drive the third bevel gear 350 and the third output shaft 320 to rotate via the fourth bevel gear 360.

[0060] In one embodiment, the first power assembly 100 further includes a first electromagnetic brake 150, which is electrically connected to the first motor 110. The second power assembly 200 further includes a second electromagnetic brake 250, which is electrically connected to the second motor 210.

[0061] Electromagnetic brakes have the characteristic of fast response speed. When it is necessary to stop the stirring system from running, the first electromagnetic brake 150 and the second electromagnetic brake 250 can be controlled by electrical signals to quickly brake the first motor 110 and the second motor 210, so that the stirring device 2000 can stop rotating quickly.

[0062] The arrangement of the first electromagnetic brake 150 and the second electromagnetic brake 250 enables the locking of the first motor 110 and the second motor 210 to have dual-layer control, thereby further ensuring the reliability of the locking of the first motor 110 or the second motor 210.

[0063] In one embodiment, the reducer 400 includes a planetary gear reduction structure. A third output shaft 320 is connected to the sun gear 410 in the planetary gear reduction structure, and a fourth output shaft 430 is provided on the planetary gear carrier 420 in the planetary gear reduction structure.

[0064] The planetary gear reduction structure features multi-stage gear meshing transmission, enabling a large reduction ratio. The third output shaft 320 is connected to the sun gear 410, and power is input from the sun gear 410. Through the meshing transmission of the planetary gears with the sun gear 410 and the internal gear ring, the output speed can be effectively reduced to meet the different speed requirements of the mixing system. For example, in some processes requiring low-speed, high-torque mixing, the planetary gear reduction structure can precisely reduce the high speed of the motor to a suitable mixing speed. While reducing speed, the planetary gear reduction structure can significantly increase the output torque.

[0065] In one embodiment, multiple planetary gear reduction structures are configured, and these multiple planetary gear reduction structures are arranged in series. The third output shaft 320 is connected to the sun gear 410 in the foremost planetary gear reduction structure, and the fourth output shaft 430 is connected to the planetary gear carrier 420 in the last planetary gear reduction structure.

[0066] A single planetary gear reducer can provide a certain reduction ratio, while multiple planetary gear reducers connected in series can superimpose the reduction effect. By rationally designing the parameters of each stage of the planetary gear reducer, such as the number of teeth and the module, a very large overall reduction ratio can be easily achieved, meeting the requirements of the mixing system for extremely low output speeds, and is especially suitable for process scenarios requiring slow and stable mixing.

[0067] During deceleration, the torque increases synchronously with the increase of the reduction ratio. Multiple planetary gear reduction structures are connected in series, which amplifies the torque at each stage, ultimately outputting ultra-high torque on the fourth output shaft 430.

[0068] The power unit 1000 disclosed in this application works as follows:

[0069] The first motor 110 and the second motor 210 are connected to different power systems. Initially, the first motor 110 is active while the second motor 210 is temporarily inactive as a backup motor. The second electromagnetic brake 250 is active while the first electromagnetic brake 150 is inactive. The first motor 110 drives the first worm gear 130 to rotate, which in turn drives the first turbine 140 and the first output shaft 120 to rotate. The first bevel gear 330 is located at the end of the first output shaft 120 that passes through the third bevel gear 350. The third bevel gear 350 is connected to the first output shaft 120 via a bearing, and the rotation of the first output shaft 120 does not affect the rotation of the third bevel gear 350. When the first bevel gear 330 rotates synchronously with the first output shaft 120, the third bevel gear 350 drives the fourth bevel gear 360 to rotate along its own axis. However, since the second bevel gear 340 is fixed and does not rotate, the fourth bevel gear 360 will rotate circumferentially around the second bevel gear 340. Since the fourth bevel gear 360 is connected to the third bevel gear 350 via the fixed bracket 370, the rotation of the fourth bevel gear 360 around the second bevel gear 340 will drive the third bevel gear 350 to rotate. The third bevel gear 350 drives the fifth bevel gear 380 and the third output shaft 320 to rotate. After the third output shaft 320 sends power into the reducer 400, the fourth output shaft 430 in the reducer 400 drives subsequent operations such as the stirring device 2000.

[0070] When the first motor 110 malfunctions or requires maintenance, the first electromagnet operates while the second electromagnet stops operating, at which point the second motor 210 begins to operate. Following the same operating principle as described above, the second motor 210, through the second worm gear 230 and the second bevel gear 340, enables the fourth bevel gear 360 to rotate circumferentially along the first bevel gear 330.

[0071] When the first motor 110 is stopped and the second motor 210 is started, the gap is very small, so the stopping time of subsequent working parts such as the stirring device 2000 will also be very short.

[0072] Through the above embodiments, this application has the following beneficial effects or advantages: The power unit 1000 disclosed in this application adopts two independently configured drive motors, which are coupled to the stirring shaft through worm gears, bevel gear sets, and planetary gear systems respectively, forming a parallel transmission structure. The two motors are connected to different power systems. When one motor experiences a power outage or failure, the control system can immediately switch to the other motor to maintain the continuous operation of the stirring shaft, effectively preventing material sedimentation and accumulation, significantly improving the operational reliability of the stirring system, and reducing production process interruptions and tank cleaning costs caused by stirring interruptions. The transmission system integrates a worm gear mechanism and an electromagnetic brake dual self-locking unit, which synchronously triggers mechanical-electromagnetic combined braking when switching motors to ensure the safe locking of the stopped motor. This multi-layered safety protection mechanism can effectively avoid problems such as unstable power transmission or motor runaway during motor switching, enhancing the emergency response capability of the stirring system.

[0073] See Figure 5 Based on the same inventive concept, the second aspect of this application discloses a stirring device, which includes a stirring device 2000 and a power device 1000 disclosed in any of the first aspects of the above embodiment, and the output end of the reducer 400 is connected to the stirring device 2000 in a transmission connection.

[0074] The mixing equipment disclosed in this embodiment employs a dual-motor design to achieve power redundancy. When one motor fails, the other can continue to provide power, maintaining the normal operation of the mixing system and ensuring production continuity. This avoids the problem of mixing stopping due to motor repair when the first motor 110 or the second motor 210 fails, which could lead to sediment buildup in the seed tank. To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention have been clearly and completely described above with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0075] Therefore, the above detailed description of the embodiments of the invention disclosed in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0076] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0077] In the description of this invention, it should be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings and are only for the convenience of describing this invention 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 invention.

[0078] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," 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. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0079] In this invention, unless otherwise expressly specified and limited, "above or below" a first feature may include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on" the first feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the first feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0080] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0081] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A power device, characterized in that, include: The first power assembly includes a first motor and a first output shaft that is drively connected to the first motor. The second power assembly includes a second motor and a second output shaft that is drive-connected to the second motor. A bevel gear transmission box includes a housing and a third output shaft, wherein the third output shaft is rotatably connected to the housing, and one of the third output shafts is selectively connected to a first output shaft and a second output shaft; and The speed reducer has its third output shaft connected to its input end.

2. The power unit according to claim 1, characterized in that, The bevel gear transmission box further includes a first bevel gear, a second bevel gear, a third bevel gear, and a fourth bevel gear. The first bevel gear is mounted on the first output shaft, the second bevel gear is mounted on the second output shaft, the third bevel gear is rotatably connected to the housing, and the fourth bevel gear is rotatably connected to the third bevel gear through a fixing bracket. The rotation axis of the fourth bevel gear is perpendicular to the rotation axis of the third bevel gear. The fourth bevel gear meshes with both the first and second bevel gears. The first and second output shafts are arranged in parallel, and the third bevel gear is coaxially arranged with at least one of the first and second output shafts. The third bevel gear is driven by the third output shaft.

3. The power unit according to claim 2, characterized in that, The bevel gear transmission box also includes a fifth bevel gear, which is rotatably connected to the box body. The fifth bevel gear is mounted on the third output shaft and meshes with the third bevel gear.

4. The power unit according to claim 3, characterized in that, The tooth surface of the third bevel gear is oriented toward the second output shaft.

5. The power unit according to claim 2, characterized in that, The fourth bevel gear is configured as at least two, each of the fourth bevel gears is connected to the third bevel gear through the fixing frame, and the fourth bevel gears are evenly arranged around the circumference of the third bevel gear.

6. The power unit according to claim 2, characterized in that, The third bevel gear is provided with a through hole, the first output shaft passes through the through hole, and the first output shaft is rotatably connected to the third bevel gear.

7. The power unit according to any one of claims 1 to 6, characterized in that, The first power assembly further includes a first worm and a first turbine, the first motor is driven and connected to the first worm, the first turbine is mounted on the first output shaft, and the first turbine meshes with the first worm; The second power assembly further includes a second worm and a second turbine, the second motor is driven and connected to the second worm, the second turbine is mounted on the second output shaft, and the second turbine meshes with the second worm.

8. The power unit according to claim 7, characterized in that, The first power assembly further includes a first electromagnetic brake, which is electrically connected to the first motor; The second power assembly also includes a second electromagnetic brake, which is electrically connected to the second motor.

9. The power unit according to any one of claims 1 to 6, characterized in that, The reducer includes a planetary gear reduction structure, the third output shaft is connected to the sun gear in the planetary gear reduction structure, and a fourth output shaft is provided on the planetary gear support in the planetary gear reduction structure.

10. A mixing device, characterized in that, It includes a stirring device and a power device as described in any one of claims 1 to 9, wherein the output end of the reducer is connected to the stirring device in a driving manner.

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