Transmission assembly, driving head, stirring device and cooking machine

Abstract

This application relates to the field of cooking equipment technology, and provides a transmission component, a drive head, a stirring device, and a cooking machine. The transmission component includes a mounting component, a housing, a main transmission component, a revolution component, and a rotation component. The housing is movably connected to the mounting component via a first bearing. The main transmission component receives driving force to rotate and can reduce speed. The revolution component is located below the main transmission component and meshes between the main transmission component and the housing to drive the housing to rotate. The rotation component is located below the revolution component and meshes with the main transmission component to output driving force. The embodiments of this application integrate the main transmission component, revolution component, and rotation component, resulting in a compact structure and reduced overall size. Moreover, this transmission component achieves the simultaneous provision of high-torque revolution and high-speed rotation within a limited space, exhibiting high modularity, ease of installation and maintenance, and ingenious design.

Description

Technical Field

[0001] This application relates to the field of cooking equipment technology, and in particular to a transmission component, drive head, stirring device and cooking machine. Background Technology

[0002] In the automatic cooking process of stir-fry machines, the ingredients in the pot are automatically stirred by a set of stirring devices. To enable multi-directional stirring, the stirring device typically has a rotational and revolving motion structure to achieve multiple rotation modes. However, current stirring devices are limited by the overall size of the stirring device and the required motor drive force, making it impossible to assemble them by directly connecting and stacking the gearbox and motor to achieve a large stirring force and suitable speed. Therefore, current stirring devices cannot simultaneously meet the requirements of small size and high stirring force. Summary of the Invention

[0003] In view of this, the present invention provides a transmission component, a drive head, a stirring device, and a cooking machine to solve the problem that the stirring device cannot simultaneously meet the requirements of small size and large driving force.

[0004] To solve the above problems, the technical solution of this application embodiment is implemented as follows: A transmission assembly includes: a mounting member for fixed connection to an object provided for mounting, the mounting member having a communicating structure; a housing movably connected to the mounting member via a first bearing, the housing being rotatable relative to the mounting member, the mounting member and the housing combined to form a receiving cavity; a main transmission assembly installed within the receiving cavity, the main transmission assembly being connected to an external driving member via the communicating structure to obtain driving force for rotation and deceleration transmission; a revolution assembly installed within the receiving cavity and located below the main transmission assembly, the revolution assembly engaging with both the main transmission assembly and the housing to drive the housing to rotate; and a rotation assembly installed within the receiving cavity and located below the revolution assembly, the rotation assembly engaging with the main transmission assembly to output driving force.

[0005] In some embodiments, the main transmission assembly includes: a first main transmission member disposed within the communicating structure, the first main transmission member being used for transmission connection with the external driving member, the first main transmission member being provided with a sun gear; planetary gears meshing with the sun gear; and a second main transmission member disposed below the first main transmission member, the planetary gears being mounted on top of the second main transmission member to drive the second main transmission member to rotate; wherein, the inner wall of the mounting member is provided with a tooth structure meshing with the planetary gears, the number of teeth of the tooth structure being greater than the number of teeth of the sun gear.

[0006] In some embodiments, multiple planetary gears are evenly arranged around the sun gear, and each planetary gear is mounted on top of the second main transmission component via a fixed shaft; wherein a second bearing is provided between the fixed shaft and the planetary gears.

[0007] In some embodiments, the first main transmission component includes: a first top cover, which is connected to the external drive component; a first main transmission shaft, one end of which is connected to the first top cover and the other end of which extends and movably abuts against the second main transmission component; the sun gear is disposed on the first main transmission shaft; wherein, the top of the first top cover is provided with a transmission structure for quick-release connection of the external drive component.

[0008] In some embodiments, a third bearing is provided between the first top cover and the mounting member; and / or, a fourth bearing is provided between the first main transmission shaft and the second main transmission member.

[0009] In some embodiments, the second main transmission component includes: a second top cover, having a receiving groove for accommodating the planetary gear and a shaft hole for the first main transmission component to movably abut against; a second main transmission shaft, one end of which is connected to the second top cover and the other end of which extends to movably abut against the bottom of the housing; wherein a fifth bearing is provided between the second top cover and the mounting component, and a first split gear that meshes with the revolution component is provided on the second main transmission shaft.

[0010] In some embodiments, the orbital assembly includes: an orbital frame having a first mounting hole and a mounting groove communicating with the first mounting hole; an orbital wheel movably mounted in the mounting groove; and an internal orbital gear ring fixedly mounted on the inner wall of the housing; wherein one end of the second main transmission shaft passes through the first mounting hole, the first split gear is located in the first mounting hole, and the orbital wheel meshes with the first split gear and the internal orbital gear ring respectively.

[0011] In some embodiments, two mounting slots are provided opposite to each other on the orbital frame, and each mounting slot is equipped with an orbital wheel; and / or, a guide bearing is provided between the second main transmission shaft and the orbital frame.

[0012] In some embodiments, the revolution assembly further includes a reversing wheel, wherein each of the mounting slots is movably mounted with the reversing wheel, and the reversing wheel meshes between the revolution wheel and the revolution internal gear ring.

[0013] In some embodiments, the main drive assembly further includes a second split gear fixedly connected to the second main drive component; the rotation assembly includes: an output shaft, one end of which passes through a second mounting hole opened in the housing; a sixth bearing, sleeved on the output shaft and mounted on the inner wall of the second mounting hole, the sixth bearing being used to guide the rotation of the output shaft; a transmission gear, fixedly mounted on the output shaft and meshing with the second split gear; wherein, a connecting structure is provided on the end of the output shaft located outside the receiving cavity, the connecting structure being used for detachable connection of external components.

[0014] In some embodiments, the connection structure includes: a connection hole extending along the axial direction of the output shaft, the connection hole being for inserting and installing the external component; and a locking hole for inserting and locking the external component, the locking hole being formed on the outer side wall of the output shaft and communicating with the connection hole.

[0015] In some embodiments, multiple self-rotating components are provided, and at least a corresponding number of second mounting holes are provided on the housing; wherein each of the transmission gears meshes with the same second split gear.

[0016] This application also provides a drive head, including: the transmission assembly described in any of the above embodiments; a mounting plate, fixedly connected to the mounting member to support the transmission assembly; a drive member, mounted on the mounting plate and connected to the main transmission assembly to provide a driving force for rotating the main transmission assembly; and a control assembly, electrically connected to the drive member to control the drive member.

[0017] This application embodiment also provides a stirring device for stirring food in the pot of a cooking machine. The stirring device includes a stirring blade and a drive head as described in any of the above embodiments. The drive head is provided with an output shaft having a connection structure. The stirring blade is detachably connected to the output shaft through the connection structure.

[0018] This application also provides a cooking machine, including a device body and a stirring device as described in any of the above embodiments, wherein the stirring device is installed on the device body.

[0019] This application provides a transmission assembly, drive head, stirring device, and cooking machine. The transmission assembly includes a mounting component, a housing, a main transmission assembly, a revolution assembly, and a rotation assembly. The mounting component has a communicating structure. The housing is movably connected to the mounting component via a first bearing and can rotate relative to the mounting component. The mounting component and the housing together form a receiving cavity. The main transmission assembly is installed within the receiving cavity and is used to obtain driving force for rotation and to reduce speed. The revolution assembly is located below the main transmission assembly and meshes between the main transmission assembly and the housing to drive the housing to rotate. The rotation assembly is installed within the receiving cavity and located below the revolution assembly. The rotation assembly meshes with the main transmission assembly to output driving force. This application integrates the main transmission assembly, revolution assembly, and rotation assembly within the receiving cavity formed by the mounting component and the housing, making the entire transmission assembly compact in the axial direction and reducing its overall volume. Furthermore, the main transmission assembly can achieve speed reduction and torque amplification transmission, increasing the output driving force, and works in conjunction with the revolution assembly to separate the revolution motion of the housing and the rotation motion of the rotation assembly. This transmission component enables the simultaneous provision of high-torque revolution and high-speed rotation within a limited space. Moreover, it features a compact structure, high modularity, ease of installation and maintenance, and ingenious design. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural schematic diagram of the transmission component provided in the embodiments of this application; Figure 2 This is a front view of the transmission assembly provided in an embodiment of this application; Figure 3 yes Figure 2 Schematic diagram of the cross section at point AA; Figure 4 yes Figure 2 Schematic diagram of the cross section at point BB; Figure 5 yes Figure 2 Cross-sectional view at point CC; Figure 6 This is an assembly diagram of the main drive assembly and the revolution assembly provided in the embodiments of this application; Figure 7 This is an exploded view of the main drive assembly and the revolution assembly provided in the embodiments of this application; Figure 8 This is a three-dimensional structural diagram of the driving head provided in the embodiments of this application; Figure 9 This is a left view of the drive head provided in an embodiment of this application; Figure 10 This is a three-dimensional structural schematic diagram of the stirring device provided in the embodiments of this application; Figure 11This is a partial cross-sectional schematic diagram of the stirring blade and the self-rotating component after assembly according to an embodiment of this application.

[0021] Explanation of reference numerals in the attached figures: 1. Transmission assembly; 101. First bearing; 102. Receiving cavity; 11. Mounting component; 110. Connecting structure; 111. Gear structure; 112. Third bearing; 113. Fifth bearing; 12. Housing; 121. Second mounting hole; 13. Main transmission assembly; 130. First split gear; 131. First main transmission component; 1311. First top cover; 1312. First main transmission shaft; 1313. Transmission structure; 132. Sun gear; 133. Planet gear; 134. Second main transmission component; 1341. Second top cover; 1342. Second main transmission shaft; 1343. 1344. Receiving groove; 135. Shaft hole; 136. Fixed shaft; 137. Second bearing; 138. Fourth bearing; 139. Second split gear; 140. Revolution assembly; 141. Revolution frame; 1411. First mounting hole; 1412. Mounting groove; 142. Revolution wheel; 143. Revolution internal gear ring; 144. Reversing wheel; 15. Rotation assembly; 151. Output shaft; 152. Sixth bearing; 153. Rotating gear; 154. Connecting structure; 1541. Connecting hole; 1542. Locking hole; 16. Pressure cap; 17. Seal; 18. Guide bearing; 2. Drive head; 21. Mounting plate; 22. Drive components; 23. Control components; 3. Stirring device; 31. Stirring blade; 32. Adjustment hole; 33. Locking component; 34. Elastic component. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to the accompanying drawings. The described embodiments should not be regarded as limitations on this application. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0023] The specific technical features described in the specific embodiments can be combined in any suitable manner without contradiction. For example, different combinations of specific technical features can form different embodiments and technical solutions. To avoid unnecessary repetition, the various possible combinations of the specific technical features in this application will not be described separately.

[0024] In the following description, the terms “first, second, third, ……” are used only to distinguish similar objects and do not represent a specific ordering of objects. It is understood that “first, second, third, ……” may be interchanged in a specific order or sequence where permitted, so that the embodiments of this application described herein can be implemented in an order other than that illustrated or described herein.

[0025] It should be understood that the directional descriptions "above", "below", "outside" and "inside" involved in the embodiments of this application refer to the directional descriptions under normal use. The "left" and "right" directions refer to the left and right directions shown in the corresponding schematic diagrams. They can be the left and right directions under normal use or not.

[0026] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. "A plurality of" means two or more.

[0027] Unless otherwise defined, all technical and scientific terms used in the embodiments of this application have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in the embodiments of this application is for the purpose of describing the embodiments of this application only and is not intended to limit this application.

[0028] like Figures 1 to 3 As shown in the embodiment of this application, a transmission component 1 is provided for rotating under the driving force generated by an external drive component, and the motion can be divided into at least revolution motion and rotation motion to meet the corresponding usage requirements. If the transmission component 1 is used on the stirring device 3 of a cooking machine for stirring food, the large-area and high-efficiency stirring of food in the pot can be achieved through the transmission component 1, thereby improving the stirring effect of food.

[0029] Specifically, the transmission assembly 1 includes a mounting member 11, a housing 12, a main transmission assembly 13, a revolution assembly 14, and a rotation assembly 15. The mounting member 11 is used to fixably connect to an object provided for installation (such as the mounting plate 21 described below), thus providing a mounting base for the entire transmission assembly 1. A connecting structure 110 is provided on the mounting member 11, through which driving force is transmitted. The housing 12 is movably connected to the mounting member 11 via a first bearing 101, allowing the housing 12 to rotate relative to the mounting member 11. The mounting member 11 and the housing 12 together form a receiving cavity 102. The main transmission assembly 13 is installed within the receiving cavity 102 and is connected to an external driving component via the connecting structure 110 to obtain driving force for rotation and to achieve speed reduction transmission. The revolution assembly 14 is installed within the receiving cavity 102 and located below the main transmission assembly 13. The revolution assembly 14 engages with both the main transmission assembly 13 and the housing 12 to drive the housing 12 to rotate. The self-rotating component 15 is installed inside the receiving cavity 102 and located below the orbital component 14. The self-rotating component 15 meshes with the main drive component 13 to obtain driving force and output the driving force.

[0030] like Figure 1 and Figure 3 As shown, the mounting component 11 is used for fixed connection with the object to be mounted. It can be a flange structure, a quadrilateral plate component, or other shapes that meet assembly requirements. The mounting component 11 is firmly installed and fixed to the object to be mounted by bolts or welding. A connecting structure 110 is provided on the mounting component 11. The connecting structure 110 is located at the center or eccentric position of the mounting component 11, and is used for the output shaft of an external drive component (such as a motor) to pass through to realize power input. The connecting structure 110 can be a through hole or groove, etc., as long as it meets the connection with the external drive component. A sealing ring or bearing can be installed in the connecting structure 110 to prevent external moisture, dust and other impurities from entering and to ensure the accuracy of transmission rotation. The housing 12 is movably connected to the mounting component 11 through a first bearing 101. The first bearing 101 is usually a deep groove ball bearing or an angular contact ball bearing. Its inner ring fits with the outer circle of the mounting component 11, and its outer ring fits with the inner hole of the housing 12, so that the housing 12 can rotate flexibly relative to the mounting component 11. The mounting component 11 and the housing 12 together form a receiving cavity 102. This receiving cavity 102 is a closed or semi-closed space, providing installation space for the main drive assembly 13, the revolution assembly 14, and the rotation assembly 15, and also serving a protective and support function. Furthermore, a pressure cap 16 can be fixedly connected to the top of the housing 12 to define the installation position of the first bearing 101, ensuring the stability of the first bearing 101. Additionally, a sealing element 17 can be provided on the first bearing 101 to prevent external moisture or impurities from entering the first bearing 101, thereby improving the reliability of the first bearing 101's movement.

[0031] The main drive assembly 13 is installed within the receiving cavity 102 and located at the upper part of the receiving cavity 102. The main drive assembly 13 is connected to an external drive component via a connecting structure 110 to obtain driving force for rotation and to achieve speed reduction transmission. Specifically, the output shaft of the external drive component (e.g., a brushless DC motor) extends into the receiving cavity 102 through the connecting structure 110 on the mounting member 11 and is connected to the input end of the main drive assembly 13 (the transmission structure 1313 described below). The main drive assembly 13 can be in the form of a planetary gear reduction mechanism, a harmonic reduction mechanism, or a cycloidal pinwheel reduction mechanism, etc.

[0032] As one possible implementation, the main drive assembly 13 includes a sun gear 132, multiple planet gears 133, a planet carrier, and an internal gear ring. The sun gear 132 is connected to the output shaft of the drive unit via a key or spline. The multiple planet gears 133 are evenly distributed around and mesh with the sun gear 132, and simultaneously mesh with the internal gear ring fixed on the mounting member 11. The planet carrier supports the planet gears 133 and serves as the output end after reduction. By appropriately selecting the gear module (e.g., 0.5mm to 2mm) and gear ratio (e.g., 10-20 teeth on the sun gear 132 and 50-100 teeth on the internal gear ring), a reduction ratio of 5:1 to 10:1 can be achieved, thereby converting the high-speed, low-torque input of the external drive unit into a low-speed, high-torque output to meet the needs of stirring large loads of food.

[0033] As another possible implementation, the main drive assembly 13 can employ two- or three-stage planetary gears in series to achieve a larger reduction ratio (e.g., 100:1 or higher) within a smaller axial dimension. The gears can be made of carburized and quenched steel or powder metallurgy sintered steel, and their surfaces can be treated for wear resistance to ensure long-term operational accuracy and lifespan. Furthermore, needle roller bearings or sliding bearings can be installed between the components of the main drive assembly 13 to reduce friction and improve transmission efficiency.

[0034] like Figure 1 and Figure 3As shown, the revolution assembly 14 is installed inside the receiving cavity 102 and located below the main drive assembly 13. The revolution assembly 14 meshes with both the main drive assembly 13 and the outer casing 12 to drive the outer casing 12 to rotate. The revolution assembly 14 can be an internal gear ring or a planetary gear system. Specifically, as one possible embodiment, the revolution assembly 14 can include a revolution gear disk, the upper end face of which is provided with an external gear or internal gear that meshes with the output end (e.g., planetary carrier) of the main drive assembly 13, and the lower end face or outer periphery of which is provided with an external gear that meshes with a gear ring on the inner wall of the outer casing 12. When the main drive assembly 13 outputs a decelerated rotational motion, the revolution gear disk transmits this motion to the outer casing 12, causing the outer casing 12 to generate a slower revolution relative to the mounting member 11. This revolution motion can be used to drive the stirring head of the stir-fry machine to rotate around the center of the pot, achieving a wide range of food stirring and gathering towards the inside of the pot, preventing scorching and localized overheating. A bearing (such as a thrust bearing or needle roller bearing) can be provided between the orbital assembly 14 and the housing 12 to provide support and withstand axial loads. As another possible implementation, the orbital assembly 14 can be designed as an adjustable eccentric structure, and the orbital radius can be adjusted by changing the eccentricity of the orbital gear disk to accommodate pots of different sizes.

[0035] like Figure 1 and Figure 3 As shown, the rotation component 15 is installed within the receiving cavity 102 and located below the revolution component 14. The rotation component 15 meshes with the main drive component 13 and rotates to output driving force. The rotation component 15 typically includes a rotation output shaft 151 and a transmission gear 153 fixedly connected to it. The transmission gear 153 is connected to a rotating component of the main drive component 13 (e.g., the output gear on the sun gear shaft or planet carrier) via a gear pair or synchronous belt, thereby obtaining rotational motion proportional to the rotational speed of the main drive component 13. The lower end of the rotation output shaft 151 extends out of the housing 12 for connecting external components (such as a stirring blade 31 or a stirring spatula). In this way, by reasonably designing the rotational transmission ratio (e.g., 1:1 to 1:5), the rotational speed can be higher than the revolutional speed (e.g., revolutional speed 5-20 rpm, rotational speed 30-100 rpm), thereby simulating the action of hand stirring and achieving fine stirring. Bearings and oil seals can also be provided between the rotation output shaft 151 and the housing 12 to ensure rotational sealing and axial positioning. As one possible implementation, the rotation assembly 15 can be equipped with a quick-change interface, facilitating the replacement of different types of stirring tools (such as spatula-shaped, claw-shaped, or spiral-shaped) according to different dishes. Furthermore, the rotation assembly 15 can also integrate a torque limiter that automatically slips when the stirring resistance is too high, protecting the drive and transmission components 1 from overload damage.

[0036] In this embodiment, the main drive assembly 13, the revolution assembly 14, and the rotation assembly 15 are arranged axially within the receiving cavity 102 formed by the mounting member 11 and the outer shell 12. The main drive assembly 13 is directly connected to the external drive component via the connecting structure 110 on the mounting member 11, avoiding additional couplings or intermediate drive shafts. This significantly reduces the radial dimension and overall volume of the drive assembly 1, allowing for convenient installation on the cooking machine. Furthermore, the entire transmission system is compactly arranged axially, with a short and efficient power transmission path. This enables the main drive assembly 13 to achieve speed reduction and torque increase, converting high-speed, low-torque input into low-speed, high-torque output. The revolution assembly 14 and the rotation assembly 15 then drive the outer shell 12 to revolution and the stirring tool to rotate, respectively. Thus, both revolution and rotation can achieve significant torque, reliably meeting the stirring needs of different scenarios (such as stirring highly viscous ingredients or large quantities of ingredients). Furthermore, the outer shell 12 and the mounting component 11 connected by the first bearing 101 ensure the smoothness and load-bearing capacity of the revolution motion. The outer shell 12 serves as the output component of the revolution motion and also as the protective shell for the internal components, achieving the integration of structure and function. It has a high degree of functional integration, ingenious design, and is also easy to modularly produce and maintain.

[0037] In some embodiments, such as Figure 1 , Figure 3 and Figure 4As shown, the main transmission assembly 13 includes a first main transmission member 131, planetary gears 133, and a second main transmission member 134. The first main transmission member 131 is disposed within the communicating structure 110 and is used for transmission connection with an external driving component (such as a motor output shaft) to obtain driving force for rotational drive. A sun gear 132 is disposed on the first main transmission member 131. The sun gear 132 can be a gear integrally formed on the end of the first main transmission member 131 or an independent gear fixed by a key connection. The planetary gears 133 mesh with the sun gear 132, thereby realizing the transmission of driving force between them. The second main transmission member 134 is disposed below the first main transmission member 131, and the planetary gears 133 are mounted on top of the second main transmission member 134 (for example, fixed to the upper end face of the second main transmission member 134 by a planetary gear shaft). When the sun gear 132 drives the planetary gears 133 to rotate, the revolution of the planetary gears 133 drives the second main transmission member 134 to rotate. The inner wall of the mounting component 11 is provided with a toothed structure 111 (i.e., an internal gear ring) that meshes with the planetary gear 133. After the two mesh, the mounting component 11 provides a reverse support force to the planetary gear 133. Moreover, the number of teeth in the toothed structure 111 is greater than the number of teeth in the sun gear 132, thereby realizing the reduction transmission between the two. Specifically, since the mounting component 11 is fixed, the planetary gear 133 rotates along the internal gear ring while rotating on its own axis. Its revolution motion forces the second main transmission component 134 to rotate at a lower speed than the sun gear 132, thereby achieving a reduction output. Through this design, the planetary gear 133 meshes simultaneously with the sun gear 132 and the toothed structure 111 on the mounting component 11, which greatly improves the load-bearing capacity and enables the transmission of greater torque. Furthermore, the first main transmission component 131 and the second main transmission component 134 are coaxially arranged, and this coaxial input-output structure reduces the axial dimension. Furthermore, by rationally selecting the gear ratio (e.g., 111 teeth in the gear structure / 132 teeth in the sun gear = 2-13), a large reduction ratio can be achieved within a single stage, meeting the high torque requirements of the cooking machine.

[0038] In some embodiments, such as Figure 3 , Figure 6 and Figure 7As shown, to improve the load-bearing capacity and operational smoothness of the planetary gear transmission, multiple planetary gears 133 (e.g., three or four) are evenly arranged around the sun gear 132. Each planetary gear 133 is mounted on top of the second main transmission component 134 via a fixed shaft 135. The fixed shaft 135 is perpendicular to the end face of the second main transmission component 134, and the planetary gears 133 are sleeved on the fixed shaft 135 and can rotate around it. A second bearing 136 is provided between the fixed shaft 135 and the planetary gears 133. This bearing is preferably a needle roller bearing, a sliding bearing, or a miniature deep groove ball bearing, used to reduce the friction between the planetary gears 133 and the fixed shaft 135, reduce power loss, and allow the planetary gears 133 to rotate flexibly at high speeds. In this way, by setting multiple planetary gears 133, the load can be shared by multiple planetary gears 133, which greatly reduces the contact stress on each gear, thereby improving the load-bearing capacity and service life of the entire reduction mechanism, and enabling it to cope with the impact load when the cooking machine is stirring highly viscous ingredients. Furthermore, the symmetrical arrangement causes the radial forces generated by gear meshing to cancel each other out, reducing the off-center load on the second main transmission component 134 and the bearing below the second main transmission component 134, resulting in smoother operation and lower noise. The placement of the second bearing 136 ensures that the planetary gear 133 maintains flexible rotation during long-term operation, avoiding wear and heat generation caused by direct contact between the fixed shaft 135 and the planetary gear 133, making it suitable for automatic cooking machines that require long-term continuous operation.

[0039] As another possible implementation, the fixed shaft 135 can adopt a stepped shaft structure, with a retaining ring at the shaft shoulder to position the second bearing 136 and the planetary gears 133 axially. Furthermore, a sealing ring can be provided between the second bearing 136 and the planetary gears 133 to prevent grease leakage or impurities from entering. The planetary gears 133 are preferably made of carburized and quenched steel or powder metallurgy copper-based alloy, while the second bearing 136 can be an oil-impregnated sliding bearing to achieve self-lubrication and reduce maintenance requirements. This design, with multiple planetary gears 133 evenly distributed and supported by bearings, enables the main transmission assembly 13 to achieve high load-bearing capacity, high efficiency, and low noise transmission performance within a limited volume.

[0040] In some embodiments, such as Figure 3 , Figure 6 and Figure 7As shown, the first main transmission component 131 includes a first top cover 1311 and a first main transmission shaft 1312. The first top cover 1311 is used for transmission connection with an external drive component (e.g., the output shaft of a motor), and its top is provided with a transmission structure 1313 for quick-release connection to the external drive component, such as a flat keyway, spline hole, D-shaped hole, or plum blossom-shaped flexible coupling interface. This quick-release structure allows the drive component and the first main transmission component 131 to be quickly assembled or separated without the need for additional tools, which facilitates the maintenance and replacement of the motor. Moreover, it is also convenient to connect with different types of motors, improving the versatility of the transmission component 1, and is especially suitable for modular design. One end of the first main transmission shaft 1312 is fixedly connected to the first top cover 1311 (it can be integrally formed or connected by threads or pins), and its other end extends to movably abut against the second main transmission component 134. For example, the end of the first main transmission shaft 1312 is provided with a ball head or a flat surface, which contacts the blind hole or stepped surface in the center of the second main transmission component 134 to transmit axial thrust and allow relative rotation.

[0041] The sun gear 132 is mounted on the first main transmission shaft 1312. It can be an external gear integrally machined onto the shaft surface, or it can be an independent gear fixed to the shaft by a key or interference fit. This split or integrated design can be flexibly selected according to processing cost and strength requirements. During operation, the external drive component drives the first main transmission shaft 1312 to rotate through the quick-release structure on the first top cover 1311. The sun gear 132 on the first main transmission shaft 1312 drives the planet gears 133, and the end of the first main transmission shaft 1312 abuts against the second main transmission component 134, providing axial positioning for the second main transmission component 134 without affecting the relative rotational movement between the two.

[0042] By incorporating a quick-release transmission structure 1313, the connection between the external drive component and the main transmission assembly 13 becomes more convenient and reliable. During production assembly, motor installation can be completed quickly, and during maintenance, the motor can be replaced without disassembling the entire transmission assembly 1, significantly improving assembly efficiency and maintenance convenience. Simultaneously, diverse quick-release methods (such as magnetic couplings or expansion sleeves) also provide overload protection; when the stirring resistance increases abnormally, the quick-release structure can slip or disengage, preventing damage to the motor or transmission gears. As one possible implementation, the top of the first top cover 1311 can be designed as a standard motor output shaft interface (such as a D-shaped shaft or semi-circular keyway) to accommodate commercially available DC geared motors. Thrust bearings or wear-resistant gaskets can be installed at the ends where the first main transmission shaft 1312 abuts against the second main transmission component 134 to reduce wear and improve axial load capacity. This modular design of the first main drive component 131 enables the power input part of the main drive assembly 13 to be quick to install and remove and has high versatility, thereby expanding the range of applications and reducing the requirements for the selection and design of external drive components.

[0043] In some embodiments, such as Figure 3 , Figure 6 and Figure 7 As shown, to further improve the rotational accuracy and transmission stability of the first main transmission component 131, a third bearing 112 is provided between the first top cover 1311 and the mounting component 11. This third bearing 112 is typically a deep groove ball bearing or an angular contact ball bearing, with its inner ring fitted around the outer circumference of the first top cover 1311 and its outer ring fixed to the inner wall of the mounting component 11 or within a bearing seat on the upper part of the mounting component 11. This third bearing 112 provides radial support and axial positioning for the first main transmission component 131, ensuring that its rotational center coincides with the axis of the connecting structure 110 of the mounting component 11. This reduces gear meshing problems or vibrations caused by the sway of the first main transmission component 131, thereby improving the transmission smoothness and service life of the entire main transmission assembly 13. Simultaneously, the third bearing 112 also bears the radial load applied by external drive components (such as the unbalanced force of the motor output shaft), protecting the first main transmission shaft 1312 from bending stress.

[0044] In some embodiments, such as Figure 3 and Figure 7 As shown, a fourth bearing 137 is provided between the first main transmission shaft 1312 and the second main transmission component 134. The fourth bearing 137 can be arranged at the end of the first main transmission shaft 1312 where it abuts against the second main transmission component 134, for example, using a thrust ball bearing or a needle roller bearing, to support and guide the rotation of the first main transmission shaft 1312. Specifically, a mounting structure (such as the shaft hole 1344 in the following text) is provided at the center of the second main transmission component 134. The end of the first main transmission shaft 1312 is inserted into the mounting structure, and the fourth bearing 137 is located between the two, allowing both to rotate freely relative to each other while transmitting axial thrust or bearing axial load. This arrangement forms a stable rotating pair between the first main transmission shaft 1312 and the second main transmission component 134, avoiding wear and heat generation caused by direct metal-to-metal contact, while ensuring the alignment accuracy of the second main transmission component 134 during rotation. As one possible implementation, the fourth bearing 137 can be a combination bearing, such as a thrust bearing and a radial bearing, to simultaneously withstand axial and radial forces, making the relative movement between the first main transmission shaft 1312 and the second main transmission component 134 more flexible and reliable. Furthermore, dust seals can be provided on both sides of the fourth bearing 137 to prevent grease leakage and the intrusion of external impurities.

[0045] Specifically, the third bearing 112 and the fourth bearing 137 can be installed individually or simultaneously. When both are installed simultaneously, the first main transmission component 131 receives double support. Its front end is positioned on the mounting component 11 via the third bearing 112, and its rear end rotates with the second main transmission component 134 via the fourth bearing 137. This results in higher rigidity and stronger vibration resistance for the entire rotating system, making it suitable for high-speed, high-torque cooking machine applications. It significantly reduces transmission noise and vibration, extending equipment lifespan. Through the rational arrangement of the third bearing 112 and / or the fourth bearing 137, friction and wear between the rotating parts of the main transmission assembly 13 are reduced, transmission efficiency is improved, and assembly and maintenance are more convenient.

[0046] In some embodiments, such as Figure 3 and Figure 7 As shown, the second main transmission component 134 includes a second top cover 1341 and a second main transmission shaft 1342. The upper end face of the second top cover 1341 is provided with a receiving groove 1343 for accommodating a planetary gear 133. This receiving groove 1343 can be a recess matching the contour shape of the planetary gear 133, used to position the fixed shaft 135 of the planetary gear 133 or to accommodate the lower part of the planetary gear 133, so that the planetary gear 133 does not interfere with the second top cover 1341 during rotation. The center of the second top cover 1341 is also provided with a shaft hole 1344 for the first main transmission component 131 to movably abut against. The end of the first main transmission shaft 1312 is inserted into this shaft hole 1344 and can form a rotational fit with the inner wall of the shaft hole 1344 through a fourth bearing 137. One end of the second main transmission shaft 1342 is fixedly connected to the second top cover 1341, which can be integrally formed or fixed by threads or welding. The other end of the second main transmission shaft 1342 extends downward and movably abuts against the bottom of the housing 12. For example, the lower end of the second main transmission shaft 1342 is provided with a ball head or a flat surface, which contacts the inner wall or central boss at the bottom of the housing 12 to transmit axial force and provide a lower support point for the second main transmission component 134. A fifth bearing 113 is provided between the second top cover 1341 and the mounting component 11. The fifth bearing 113 is usually a thrust bearing or an angular contact ball bearing. Its inner ring is fixed to the outer circumference of the second top cover 1341, and its outer ring is fixed to the inner wall of the mounting component 11. It is used to bear the weight of the second main transmission component 134 and planetary gears 133, as well as the axial load generated by gear meshing, while ensuring the centering accuracy of the second main transmission component 134 during rotation. The second main transmission shaft 1342 is provided with a first split gear 130 that meshes with the revolution component 14. This gear can be an external gear integrally machined on the surface of the second main transmission shaft 1342, or it can be an independent gear fixed on the shaft by a key or interference fit. It is used to transmit the torque after the main transmission component 13 is reduced in speed to the revolution component 14.

[0047] Specifically, the receiving groove 1343 on the second top cover 1341 provides precise installation positioning for the planetary gears 133, ensuring uniform meshing clearance between each planetary gear 133 and the sun gear 132, resulting in smooth transmission. The movable abutment fit between the shaft hole 1344 and the first main transmission component 131 satisfies the installation requirements of the fourth bearing 137 and achieves coaxial positioning between the two-stage transmission components, while allowing relative rotation and avoiding additional loads that may be generated by rigid connections. The movable abutment between the second main transmission shaft 1342 and the bottom of the housing 12 provides auxiliary support for the entire second main transmission component 134 at the bottom. Combined with the support of the fifth bearing 113 at the top, a stable double-support structure is formed, making the second main transmission component 134 less prone to swaying when subjected to large torque and axial force, significantly improving the rigidity and vibration resistance of the transmission. Furthermore, the first split gear 130 is mounted on the second main transmission shaft 1342, which makes the power output point of the main transmission assembly 13 closer to the revolution assembly 14, resulting in a shorter power transmission path and higher efficiency. Moreover, the module and number of teeth of the first split gear 130 can be independently designed according to the reduction ratio required for revolution, without being limited by the internal structure of the main transmission assembly 13.

[0048] As one possible implementation, the fifth bearing 113 can be a double-direction thrust bearing to withstand axial loads that change direction during forward and reverse rotation. A thrust ball bearing or wear-resistant shims can be installed between the lower end of the second main transmission shaft 1342 and the bottom of the housing 12 to reduce friction and improve durability. Helical gears can be used between the first split gear 130 and the revolution assembly 14 to reduce noise and increase load-bearing capacity. This design of the second main transmission component 134 makes power transmission between the main transmission assembly 13 and the revolution assembly 14 more efficient and reliable, providing reliable intermediate support and reliable torque distribution for the entire transmission system.

[0049] In some embodiments, such as Figure 3 , Figure 6 and Figure 7As shown, the orbital assembly 14 includes an orbital frame 141, an orbital wheel 142, and an internal orbital gear ring 143. The orbital frame 141 has a first mounting hole 1411 and a mounting groove 1412 communicating with the first mounting hole 1411. The first mounting hole 1411 accommodates the passage of the second main drive shaft 1342, while the mounting groove 1412 accommodates the orbital wheel 142. The orbital wheel 142 is movably mounted within the mounting groove 1412, supported, for example, by a bearing or pin, allowing it to rotate freely. The internal orbital gear ring 143 is fixedly mounted on the inner wall of the housing 12, typically using an interference fit or pin connection, with its internal gear surface facing the orbital wheel 142. In the assembled state, one end of the second main drive shaft 1342 passes through the first mounting hole 1411, such that the first split gear 130 on the second main drive shaft 1342 is located within the first mounting hole 1411. The orbital wheel 142 meshes with both the first shunt gear 130 and the orbital internal gear ring 143. When the second main drive shaft 1342 rotates, the first shunt gear 130 drives the orbital wheel 142 to rotate. Simultaneously, the orbital wheel 142 rolls along the orbital internal gear ring 143, thereby causing the orbital frame 141 and its connected outer casing 12 to rotate around the central axis of the mounting component 11, thus achieving orbital motion. The structural design of this revolution component 14 allows the revolution wheel 142 to act as an intermediate transmission element, converting the rotational motion of the first split gear 130 into the revolution of the revolution frame 141 around the second main transmission shaft 1342, thus realizing the motion conversion from central input to eccentric output. The structure is compact and the transmission ratio is precise. Moreover, the meshing of the revolution wheel 142 with the first split gear 130 and the revolution internal gear ring 143 is all gear transmission, which has high transmission efficiency, no slippage, and long service life.

[0050] In one possible implementation, the orbital wheel 142 can adopt a double gear structure, that is, one gear meshes with the first split gear 130, and the other gear meshes with the orbital internal gear ring 143; a needle roller bearing can be provided between the orbital wheel 142 and the mounting groove 1412 to reduce friction; a limiting boss can be provided on the orbital frame 141 to prevent the orbital wheel 142 from moving axially. Through this orbital assembly 14, the power output from the main drive assembly 13 is efficiently converted into the slow revolution of the outer casing 12, providing a reliable power source for the overall stirring motion of the cooking machine.

[0051] In some embodiments, such as Figure 3 , Figure 6 and Figure 7As shown, to further improve the smoothness and load-bearing capacity of the revolution motion, two mounting slots 1412 are arranged opposite each other on the revolution frame 141, and a revolution wheel 142 is installed in each mounting slot 1412. The two revolution wheels 142 are radially distributed opposite each other along the revolution frame 141, that is, their axes are located on the same diameter and are symmetrical about the center of the revolution frame 141. Through this symmetrical arrangement, when the first split gear 130 drives the two revolution wheels 142 to rotate synchronously, the radial forces generated by the two revolution wheels 142 cancel each other out, the off-center load on the revolution frame 141 and the outer shell 12 is greatly reduced, the revolution motion is smoother, and vibration and noise are reduced; at the same time, the two revolution wheels 142 share the torque transmission, the load of a single revolution wheel 142 is halved, thereby extending the service life of the revolution wheel 142 and the tooth surface. Of course, it is understandable that three or four revolution wheels 142 can also be arranged and evenly distributed circumferentially to obtain a better load distribution.

[0052] In some embodiments, such as Figure 1 and Figure 3 As shown, a guide bearing 18 is provided between the second main transmission shaft 1342 and the orbital frame 141. This guide bearing 18 can be installed in the first mounting hole 1411 of the orbital frame 141 (see reference). Figure 7 Between the inner wall of the guide bearing 141 and the outer circumference of the second main transmission shaft 1342, a needle roller bearing, a sliding bearing, or a deep groove ball bearing is used. In this way, the guide bearing 18 not only provides precise radial positioning for the rotation of the orbiting frame 141 relative to the second main transmission shaft 1342, ensuring stable revolution of the orbiting frame 141 around the axis of the second main transmission shaft 1342 and avoiding uneven meshing clearances between the orbiting wheel 142 and the first split gear 130 and the orbiting internal gear ring 143 due to excessive clearance; but also, the guide bearing 18 bears the radial force generated by the weight of the orbiting frame 141 itself and the stirring load, protecting the second main transmission shaft 1342 from bending stress. Simultaneously, the guide bearing 18 also reduces friction between the second main transmission shaft 1342 and the orbiting frame 141, making the revolution more flexible and efficient. The symmetrical arrangement of the guide bearing 18 and the orbiting wheel 142 together constitutes a high-rigidity, low-friction revolution support system. As one possible implementation, the guide bearing 18 can be a double-row angular contact ball bearing to simultaneously withstand radial and axial loads, further improving the stability of the revolution motion. Dust seals can be provided on both sides of the guide bearing 18 to prevent grease leakage and impurity intrusion. Through this combined design of the symmetrical revolution wheel 142 and the guide bearing 18, the revolution assembly 14 maintains high motion accuracy and reliability while transmitting large torques.

[0053] In some embodiments, such as Figure 3 , Figure 6 and Figure 7As shown, to improve the stress state of the revolution assembly 14, the revolution assembly 14 is configured to also include a reversing wheel 144. A reversing wheel 144 is movably installed in each mounting slot 1412, and the reversing wheel 144 meshes between the revolution wheel 142 and the revolution internal gear ring 143. In this configuration, the revolution wheel 142 no longer directly meshes with the revolution internal gear ring 143, but instead uses the reversing wheel 144 as an intermediate transmission element. That is, the first split gear 130 drives the revolution wheel 142 to rotate, the revolution wheel 142 drives the reversing wheel 144 to rotate, and the reversing wheel 144 then meshes with the revolution internal gear ring 143 fixed to the inner wall of the outer casing 12, thereby driving the revolution frame 141 and the outer casing 12 to achieve revolution. By adding a reversing wheel 144, an additional stage of gear transmission is achieved. The presence of the reversing wheel 144 alters the force transmission path, allowing both the orbiting wheel 142 and the reversing wheel 144 to simultaneously bear the meshing force. This disperses the tooth surface contact stress and improves the load-bearing capacity and service life of the entire orbiting assembly 14. Furthermore, the reversing wheel 144 can make the rotation direction of the orbiting wheel 142 the same as or opposite to the orbital direction of the outer casing 12 (by increasing the number of reversing wheels 144), allowing for forward or reverse orbiting as needed, thus increasing design flexibility.

[0054] As one possible implementation, the reversing wheel 144 can adopt a double gear structure, or form a helical gear mesh with the orbiting wheel 142 and the orbiting internal gear ring 143 to reduce noise and improve transmission smoothness; a rolling bearing or an oil-impregnated bearing can be installed between the mounting shaft of the reversing wheel 144 and the mounting groove 1412 to reduce friction. Through this design of the reversing wheel 144, the orbiting assembly 14 achieves better mechanical performance within a compact space.

[0055] In some embodiments, such as Figure 3 , Figure 6 and Figure 7As shown, to achieve the output of rotational motion and facilitate the connection of different stirring tools, the main transmission assembly 13 also includes a second split gear 138 fixedly connected to the second main transmission component 134. The rotation assembly 15 includes an output shaft 151, a sixth bearing 152, a transmission gear 153, and a connecting structure 154 disposed at the end of the output shaft 151. One end of the output shaft 151 passes through a second mounting hole 121 opened in the housing 12. The second mounting hole 121 is usually located on the bottom plane of the housing 12, coaxially or parallel to the communication structure 110 of the mounting component 11, or the second mounting hole 121 may be located at the bottom edge of the housing 12 and inclined relative to the axis of the communication structure 110 of the mounting component 11, so as to realize the inclined rotational stirring of the connected stirring tool. The sixth bearing 152 is sleeved on the output shaft 151 and installed on the inner wall of the second mounting hole 121. The sixth bearing 152 is used to guide the rotation of the output shaft 151, so that it can rotate flexibly and bear radial loads. The transmission gear 153 is fixedly mounted on the output shaft 151 (e.g., via a key, pin, or interference fit) and meshes with the second shunt gear 138. When the second main transmission component 134 rotates, the second shunt gear 138 drives the transmission gear 153 to rotate, thereby causing the output shaft 151 to rotate around its own axis, achieving rotational motion.

[0056] A connecting structure 154 is provided on one end of the output shaft 151 outside the receiving cavity 102 (i.e., the end extending downwards from the outer casing 12). This connecting structure 154 is used for detachable connection of external components (such as a stirring spatula, stirring claw, or whisk). With this arrangement, the rotation component 15 and the revolution component 14 can share the power source of the main drive component 13, and independently take power through the second split gear 138, so that the rotation speed and revolution speed can be independently designed according to different transmission ratios without interference. Moreover, the output shaft 151 is supported on the bottom of the outer casing 12 by the sixth bearing 152, ensuring high precision and stability of rotation. At the same time, a sealing ring and a retaining ring can be provided between the output shaft 151 and the second mounting hole 121 to limit the installation position of the sixth bearing 152 and prevent lubricating oil leakage in the receiving cavity 102. Furthermore, the detachable connection structure 154 at the end of the output shaft 151 allows users to quickly change different mixing tools (such as a spatula for stir-frying, a hook for kneading dough, or a whisk) according to cooking needs, greatly expanding the functional range of the stir-fry machine. This connection structure 154 can be implemented in various forms, such as quick-change interfaces (e.g., polygonal sockets with spring-loaded locking balls), threaded connections, magnetic engagement, or snap-fit ​​connections, offering good flexibility in its design.

[0057] As one possible implementation, a thrust bearing can be installed between the output shaft 151 and the bottom of the housing 12 to withstand the axial reaction force generated during the stirring process; the transmission gear 153 and the second split gear 138 can be engaged with helical gears to reduce operating noise and improve load-bearing capacity. Through this modular design of the self-rotating component 15, the transmission component 1 provides a self-rotating output with replaceable connectors while outputting revolution motion, providing a variety of flexible stirring methods for the cooking machine.

[0058] In some embodiments, such as Figures 1 to 3 As shown, the connection structure 154 includes a connection hole 1541 and a locking hole 1542. The connection hole 1541 extends along the axial direction of the output shaft 151 and is used for inserting and installing external components (such as the plug-in shaft section of a stirring spatula). The locking hole 1542 is located on the outer wall of the output shaft 151 and communicates with the connection hole 1541, used for inserting a locking element 33 (such as a set screw, spring pin, or quick-lock ball) to lock the external component. In use, the plug-in shaft section of the external component is inserted into the connection hole 1541 to a predetermined depth, and then the locking element 33 is passed through the locking hole 1542 and pressed against or snapped into the positioning groove on the plug handle to reliably fix the external component; disassembly is simply done by reversing the operation. In this way, the vertical or inclined intersecting design of the connection hole 1541 and the locking hole 1542 ensures that the external component is simultaneously subjected to axial constraint and circumferential anti-rotation constraint after insertion, resulting in a firm connection that will not loosen or slip during operation, meeting the high torque and frequent forward and reverse rotation requirements of the cooking machine. Furthermore, the locking element 33 (such as a knob screw with a handle, a spring-loaded positioning bead, or a pin) allows for quick and easy manual assembly and disassembly without tools. Users can easily replace different external parts such as a mixing spatula, dough hook, or egg beater depending on the type of dish, greatly improving the applicability and ease of operation of the equipment, and also facilitating disassembly and cleaning. In addition, multiple locking holes 1542 can be arranged circumferentially along the output shaft 151 (e.g., two symmetrically arranged), and the use of double locking elements 33 can further increase the stability of the connection.

[0059] As one possible implementation, the connecting hole 1541 can be designed as a polygon (such as a hexagon) or a non-circular hole with a keyway, matching the corresponding shape of the insertion shaft section to achieve more reliable torque transmission without entirely relying on the force of the locking member 33. The locking member 33 can adopt an elastic steel ball structure, where the steel ball automatically engages with the annular groove of the insertion handle when it is inserted into place, and only needs to overcome the spring force when pulled out, achieving one-click quick installation and removal. The locking hole 1542 can be pre-threaded to engage with a set screw to prevent loosening due to vibration. The design of this connecting structure 154 gives the output end of the self-rotating component 15 the advantages of reliable connection, quick installation and removal, and efficient torque transmission.

[0060] In some embodiments, such as Figure 1 and Figure 3As shown, multiple rotating components 15 are provided, such as two or three. The outer casing 12 has at least a corresponding number of second mounting holes 121, with one rotating component 15 installed in each second mounting hole 121. The transmission gears 153 in each rotating component 15 mesh with the same second split gear 138, meaning one second split gear 138 simultaneously drives multiple transmission gears 153 to rotate. In this way, multiple rotating output shafts 151 can be used to install different types of stirring tools (such as one for the main stirring spatula and another for an auxiliary scraper), or multiple stirring points can be formed within the same pot to work collaboratively, resulting in more even stirring of ingredients and fewer dead zones. This is especially suitable for cooking large-capacity stir-fry machines or high-viscosity ingredients. Furthermore, all rotating components 15 share the same power source, eliminating the need for additional motors or transmission chains. The structure is compact and low-cost, and the rotation speed of each shaft is the same, facilitating synchronous stirring.

[0061] Each of the second mounting holes 121 can be evenly distributed around the center of the outer casing 12 (e.g., at a 120° angle or symmetrically distributed) to allow the movement trajectories of each stirring tool to complement each other and avoid mutual interference. As one possible implementation, the different rotational speeds of the different rotating shafts can be achieved by adjusting the difference in the number of teeth of each transmission gear 153 (i.e., a different tooth ratio than the second split gear 138) to meet the needs of different stirring functions. Each of the second mounting holes 121 is equipped with seals and bearings to ensure the sealing of the lubricating oil inside the outer casing 12 and the flexible rotation of each output shaft 151. Through this design of multiple rotating components 15, the transmission assembly 1 achieves multi-output, multi-functional stirring capabilities within a compact volume, further enhancing the richness of power output.

[0062] like Figure 8 and Figure 9 As shown in the embodiments of this application, a drive head 2 is also provided, including the transmission assembly 1, mounting plate 21, drive member 22, and control assembly 23 as described in any of the above embodiments. The mounting plate 21 is fixedly connected to the mounting member 11 of the transmission assembly 1 (e.g., by bolts or snap-fit), providing a stable support base for the entire transmission assembly 1. The drive member 22 is mounted on the mounting plate 21 and is connected to the main transmission assembly 13 (e.g., the output shaft of the drive member 22 passes through the connecting structure 110 of the mounting member 11 and is connected to the first main transmission member 131) to provide the driving force to drive the main transmission assembly 13 to rotate. The control assembly is electrically connected to the drive member 22 to control parameters such as the start / stop, speed, direction, and working time of the drive member 22. This drive head 2, by having the aforementioned transmission assembly 1, also has the beneficial effects of the transmission assembly 1, which will not be elaborated here.

[0063] By integrating the drive head 2, a standardized power unit is formed. Users or equipment manufacturers only need to install the drive head 2 onto the stirring station of the cooking machine to obtain stirring power that combines revolution and rotation. This eliminates the need to design and assemble a complex transmission system, significantly reducing the development difficulty and production cost of the entire machine. Furthermore, the drive component 22 directly plugs into the main transmission assembly 13, resulting in a short power transmission path and high efficiency. The mounting plate 21 serves as an intermediate connector, ensuring convenient installation. Moreover, the control components are integrated into the drive head 2, enabling direct and precise control of the drive component 22 (such as stepless speed regulation, forward / reverse switching, and timed start / stop). It can also interact with the main control board of the cooking machine via a communication interface for collaborative control, making it easy to use.

[0064] like Figure 10 and Figure 11 As shown in the embodiments of this application, a stirring device 3 is also provided for stirring ingredients in the pot of a stir-fry machine. The stirring device 3 includes a stirring blade 31 and a drive head 2 as described in any of the above embodiments. The drive head 2 is provided with an output shaft 151 having a connecting structure 154. The stirring blade 31 is detachably connected to the output shaft 151 through the connecting structure 154, for example, by a socket locking type, a threaded type, or a quick-change connector type, which makes it convenient for users to replace different types of stirring blades 31 (such as spatula-shaped, claw-shaped, or spiral-shaped) according to different dishes.

[0065] As one possible implementation, the stirring blade 31 can reciprocate relative to the output shaft 151. Specifically, an elastic element 34 (such as a coil spring) can be provided in the connecting hole 1541. This elastic element 34 is located between the stirring blade 31 and the output shaft 151, and an elongated adjustment hole 32 is provided on the end of the stirring blade 31 that is inserted into the connecting hole 1541. A locking element 33 passes through the adjustment hole 32 and is fixed by the locking hole 1542. In this way, driven by the elastic element 34, the locking element 33 can reciprocate within the adjustment hole 32, enabling the stirring blade 31 to automatically adjust its extension length according to the contour changes of the inner wall of the pot during rotation, thereby maintaining a good fit with the inner wall of the pot. This design allows the stirring blade 31 to adapt to the curved surface of the pot bottom, continuously scraping the food on the pot wall, effectively preventing sticking and burning, and improving the efficiency of stirring. Meanwhile, the retractable movement also acts as a buffer, allowing the stirring blade 31 to retract when it encounters hard foreign objects, reducing damage to the pot and lowering the impact load on the drive head 2. As another possible implementation, the blade of the stirring blade 31 can be a combination of flexible material (such as a silicone scraper) and a rigid frame. The elastic element 34 can be designed as a variable stiffness spring, allowing the stirring blade 31 to provide varying wall-adhering pressure at different extension strokes. This ensures sensitive adhesion during light contact while avoiding forceful scraping that could damage the internal structure of the pot (such as the coating). Through the cooperation of this retractable and quick-change stirring blade 31 with the drive head 2, the stirring device 3 achieves both powerful revolution and rotation, while also realizing adaptive wall-adhering stirring, significantly improving the stirring effect and service life.

[0066] Specifically, the stirring device 3 can have a fixed-point stopping function, so that after each stirring stops, the stirring blade 31 can stop at a set position. In this way, the stirring blade 31 will not interfere with or block the addition of food into the pot, and it also avoids the food from sticking to the stirring blade 31 and being unable to be cooked. The design is ingenious. The positioning and stopping function of the stirring blade 31 can be realized by setting a sensing magnetic element and a Hall position sensor on the transmission component 1 and the mounting plate 21, respectively. Under the interaction of the two, the position of the stirring blade 31 can be stopped at a fixed point. The structure is simple and the function is stable.

[0067] This application also provides a stir-fry machine (not shown in the figure), including a device body (not shown in the figure) and a stirring device 3 as described in any of the above embodiments. The stirring device 3 is mounted on the device body. Specifically, the device body, as the main structure of the stir-fry machine, typically includes a pot, a frame, a heating device, a control system, and a shell. The stirring device 3 is fixedly connected to the device body via its stirring arm, for example, by bolting it to the top or side of the pot, so that the stirring blade 31 of the stirring device 3 can extend into the working area inside the pot as the stirring arm descends, or move away from the pot as the stirring arm rises. The stir-fry machine, by incorporating the aforementioned stirring device 3, also possesses the beneficial effects brought by the stirring device 3, which will not be elaborated upon here. Through this integrated design of the stirring device 3 and the device body, the stir-fry machine achieves efficient automatic stir-frying while simultaneously ensuring stable and reliable cooking results and significantly improving the user experience.

[0068] The above description is merely an embodiment of this application and is not intended to limit the scope of protection of this application. Any modifications, equivalent substitutions, and improvements made within the spirit and scope of this application are included within the scope of protection of this application.

Claims

1. A transmission component, characterized in that, include: A mounting component for fixedly connecting to an object to which it is to be mounted, the mounting component having a communicating structure. The housing is movably connected to the mounting member via a first bearing, the housing is rotatable relative to the mounting member, and the mounting member and the housing together form a receiving cavity; The main drive assembly is installed in the receiving cavity. The main drive assembly is connected to an external drive component through the connecting structure to obtain driving force for rotation and deceleration transmission. A revolution assembly is installed inside the receiving cavity and located below the main drive assembly. The revolution assembly engages with both the main drive assembly and the outer shell to drive the outer shell to rotate. The self-rotating component is installed inside the receiving cavity and located below the revolution component. The self-rotating component meshes with the main transmission component to output driving force.

2. The transmission assembly as described in claim 1, characterized in that, The main drive assembly includes: A first main transmission component is disposed within the communicating structure. The first main transmission component is used for transmission connection with the external driving component. A sun gear is disposed on the first main transmission component. Planetary gears mesh with the sun gear; The second main transmission component is located below the first main transmission component, and the planetary gear is installed on top of the second main transmission component to drive the second main transmission component to rotate. The inner wall of the mounting component is provided with a toothed structure that meshes with the planetary gear, and the number of teeth in the toothed structure is greater than the number of teeth in the sun gear.

3. The transmission assembly as described in claim 2, characterized in that, The planetary gears are evenly arranged around the sun gear, and each planetary gear is mounted on the top of the second main transmission component via a fixed shaft; wherein, a second bearing is provided between the fixed shaft and the planetary gear.

4. The transmission assembly as described in claim 2, characterized in that, The first master transmission includes: The first top cover is connected to the external driving component for transmission. The first main transmission shaft has one end connected to the first top cover and the other end extending to movably abut against the second main transmission component; the sun gear is disposed on the first main transmission shaft; The top of the first top cover is provided with a transmission structure for quick-release connection of the external drive component.

5. The transmission assembly as described in claim 4, characterized in that, A third bearing is provided between the first top cover and the mounting component; and / or, a fourth bearing is provided between the first main transmission shaft and the second main transmission component.

6. The transmission assembly as described in claim 2, characterized in that, The second master transmission includes: The second top cover is provided with a receiving groove for accommodating the planetary gear and a shaft hole for the first main transmission component to move and abut against. The second main transmission shaft is connected at one end to the second top cover and extends to movably abut against the bottom of the outer casing. A fifth bearing is provided between the second top cover and the mounting component, and a first split gear that meshes with the revolution component is provided on the second main transmission shaft.

7. The transmission assembly as described in claim 6, characterized in that, The orbital component includes: The orbital frame has a first mounting hole and a mounting slot communicating with the first mounting hole; The orbital wheel is movably installed within the mounting slot. An internal gear ring for revolution is fixedly installed on the inner wall of the outer casing; One end of the second main drive shaft passes through the first mounting hole, the first split gear is located in the first mounting hole, and the revolution wheel meshes with the first split gear and the revolution internal gear ring respectively.

8. The transmission assembly as described in claim 7, characterized in that, The orbital frame has two mounting slots opposite each other, and each mounting slot is equipped with an orbital wheel; and / or, a guide bearing is provided between the second main transmission shaft and the orbital frame.

9. The transmission assembly as claimed in claim 7, characterized in that, The orbital component also includes: The reversing wheel is movably installed in each of the mounting slots, and the reversing wheel meshes between the revolution wheel and the revolution internal gear ring.

10. The transmission assembly as described in any one of claims 2 to 9, characterized in that, The main drive assembly further includes a second split gear fixedly connected to the second main drive component; the rotation assembly includes: The output shaft passes through a second mounting hole opened in the housing at one end; A sixth bearing is sleeved on the output shaft and installed on the inner wall of the second mounting hole. The sixth bearing is used to guide the rotation of the output shaft. The transmission gear is fixedly mounted on the output shaft and meshes with the second shunt gear; The output shaft has a connecting structure at one end outside the receiving cavity, which is used for detachable connection of external components.

11. The transmission assembly as claimed in claim 10, characterized in that, The connection structure includes: A connecting hole is provided, extending along the axial direction of the output shaft, for inserting and installing the external component; A locking hole is provided for inserting a locking element to lock the external component. The locking hole is located on the outer side wall of the output shaft and communicates with the connecting hole.

12. The transmission assembly as claimed in claim 10, characterized in that, The self-rotating component is provided in multiple ways, and the outer shell is provided with at least a corresponding number of second mounting holes; wherein each of the transmission gears meshes with the same second split gear.

13. A driving head, characterized in that, include: The transmission assembly as described in any one of claims 1 to 12; The mounting plate is fixedly connected to the mounting component to support the transmission assembly; A drive component is mounted on the mounting plate and is connected to the main drive assembly to provide a driving force that drives the main drive assembly to rotate. A control component, electrically connected to the drive element, is used to control the drive element.

14. A stirring device for stirring ingredients inside the pot of a stir-fry machine, characterized in that, The stirring device includes a stirring blade and a drive head as described in claim 13, wherein the drive head is provided with an output shaft having a connecting structure; The stirring blade is detachably connected to the output shaft via the connecting structure.

15. A cooking machine, characterized in that, It includes a device body and a stirring device as described in claim 14, wherein the stirring device is mounted on the device body.

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