A multifunctional food processing machine

Abstract

The present application relates to the technical field of food processing devices, and specifically discloses a multifunctional food processing machine, including a processing cup, a first processing piece, a second processing piece and a power assembly, the power assembly including a motor, a first reduction assembly and a second reduction assembly driven by the motor, the first reduction assembly including a first planetary bracket and a first output shaft connected in a split manner, the circumferential gap formed by a plurality of second planetary gears in the second reduction assembly is smaller than the maximum outer diameter of the first output shaft, and the first output shaft is limitedly installed on the second planetary bracket of the second reduction assembly to be connected to the first planetary bracket. The present application can achieve that the size of the first output shaft and the size of the second planetary gear set are not affected by each other on the premise of ensuring the axial matching relationship between the first output shaft and the first planetary bracket, and can achieve miniaturization of the power assembly, which is convenient for use and storage; in addition, multi-layer limit of the first output shaft is achieved, and the positioning is reliable, which is conducive to the stable output of the first and second speeds.

Description

Technical Field

[0001] The present application relates to the technical field of food processing devices, and in particular to a multifunctional food processing machine. Background Art

[0002] Existing multifunctional food processors usually include a processing cup, multiple processing parts and a power assembly. The power assembly includes a motor and a first planetary gear set and a second planetary gear set. The two-stage gear sets are connected in transmission, and the first planetary bracket transmits power to the first output shaft, and the second planetary bracket transmits power to the second output shaft, so as to achieve multiple speed outputs. Users can replace different processing parts to achieve multiple functions such as mincing meat, chopping vegetables, and kneading noodles.

[0003] Generally, the outer dimensions of the power assembly are mainly controlled by the size of the motor and the gear set. The motor and the processing part are matched and finalized, and the size difference is small, while the gear set needs to be changed in one or two stages, and the size difference between the two is large. Moreover, in the existing power assembly, the first planetary support is connected to the first output shaft through the second sun gear, and is an integrated structure. This structure will cause the gear size of the first planetary gear set to affect the gear size of the second planetary gear set. Specifically, during installation, the diameter of the connection between the first output shaft and the second sun gear must be larger than the final output connector of the first stage, that is, the circumferential gap between the second planetary gears needs to be enlarged, otherwise it cannot be connected to achieve the transmission connection with the first gear set. This structure will directly lead to the second planetary gear set needing to adapt to a larger fixed gear ring to meet the secondary output, enlarging the gears of the entire power assembly, which is not conducive to user use and storage; and if the size of the power assembly is reduced in order to reduce the size of the secondary planetary gear, the first planetary gear set must be further reduced. On the one hand, it has little effect on the change of size, and on the other hand, it will cause the power transmission of the first output shaft to be unstable, and it is difficult to adapt to the existing processing parts, and the processing parts need to be further adjusted, and the scope of application is reduced. In addition, the axial positioning of the first output shaft of the current structure only relies on the first planetary bracket. The first output shaft has only one end fixed and the other end cantilevered, which causes shaking during operation, resulting in unstable speed output, transmission energy loss, high transmission noise and other problems. Summary of the invention

[0004] The purpose of the present application is to provide a multifunctional food processor to solve the problem that the sizes of gear sets in the existing multifunctional food processors affect each other and the positioning is unreliable.

[0005] To achieve the above-mentioned objectives, the present application provides a multifunctional food processor, comprising a processing cup, a first processing part, a second processing part and a power assembly, the power assembly comprising a motor, a first reduction assembly and a second reduction assembly driven by the motor, the first reduction assembly and the second reduction assembly respectively drive the first processing part and the second processing part, the first reduction assembly comprises a first planetary bracket and a first output shaft connected in a split manner, the second reduction assembly comprises a second sun gear connected to the first planetary bracket, a plurality of second planetary gears meshing with the second sun gear, and a second planetary bracket, the circumferential gap formed by the plurality of second planetary gears is smaller than the maximum outer diameter of the first output shaft, and the first output shaft is limitedly installed on the second planetary bracket to be connected to the first planetary bracket.

[0006] The multifunctional food processing machine provided by the present application, the first reduction assembly includes a first planetary bracket and a first output shaft connected in a split manner, the first output shaft is connected to the first planetary bracket in a disassembled manner, and the size of the first output shaft and the size of the second planetary gear set are not affected by each other under the premise of ensuring the axial matching relationship between the first output shaft and the first planetary bracket, and can be appropriately adjusted as needed. When the second planetary gear set is not limited by the size of the first output shaft, the circumferential gap formed by the plurality of second planetary gears is smaller than the maximum outer diameter of the first output shaft, on the one hand, the overall size of the second reduction assembly is reduced, and the size of the overall power assembly is adjusted under the premise that the size of the first output shaft is not affected, which reduces the size of the power assembly and facilitates the user to use and store it. On the other hand, the output end of the first output shaft can maintain the traditional size, and then adapt to the existing processed parts, without the need to adjust the size of the processed parts as standard parts, and can directly adapt to more current processed parts. The first output shaft is a detachable component and is independently arranged with the first planetary bracket. The first output shaft is limitedly installed in the second planetary bracket to be connected with the first planetary bracket, that is, the traditional installation method is changed to avoid that an output shaft can only be limited by the first planetary bracket. During the assembly process, the first output shaft is first limited in the second planetary bracket, and then the second planetary bracket is matched with the first planetary bracket to realize the connection between the first output shaft and the first planetary bracket. Therefore, after the assembly is completed, the first output shaft is limited by the first planetary bracket and is also supported by the second planetary bracket. The multi-layer limit has reliable positioning and avoids the cantilever situation, thereby reducing the shaking of the first output shaft, maintaining the stable output of the first speed and the second speed, ensuring the transmission efficiency and reducing the transmission noise.

[0007] In a preferred implementation of the multifunctional food processor, a limiting portion is convexly provided on the outer periphery of the first output shaft, the outer diameter of the limiting portion constitutes the maximum outer diameter of the first output shaft, and the limiting portion is axially limited between the second planetary bracket and the second planetary gear.

[0008] The first output shaft is provided with a limiting part to achieve limiting cooperation with the second planetary support. The outer diameter of the limiting part constitutes the maximum outer diameter of the first output shaft. During the assembly process, only the limiting part of the first output shaft needs to be aligned and installed, which is convenient for the cooperation between the first output shaft and the second planetary support and further avoids the overall size of the first output shaft and the size of the second planetary gear set from affecting each other. The outer diameter of the limiting part constitutes the maximum outer diameter of the first output shaft, and the axial limiting part is between the second planetary support and the second planetary gear. The limiting part is more reliable, and the axial positioning of the second planetary support on the first output shaft is strengthened.

[0009] In a preferred implementation of the multifunctional food processor, the second planetary bracket is provided with a step for mounting a bearing, the bearing is sleeved with the first output shaft to radially support the first output shaft, and the inner diameter of the bearing is smaller than the maximum outer diameter of the first output shaft.

[0010] The second planetary support is provided with a step and a bearing. The step determines the matching position of the second output shaft to achieve support positioning. It can pre-position the first output shaft during assembly, which is convenient for installation and alignment. A bearing is provided in the step, and the bearing radially supports the first output shaft to ensure the concentricity of the installation. The step and the bearing cooperate to achieve all-round support for the first output shaft in the axial and radial directions, avoiding the problem of large shaking at the output end of the first output shaft, and further achieving stable output of the first speed and the second speed. In addition, the bearing can be used as a wear-resistant part to avoid wear between the first output shaft and the second planetary support, ensuring the transmission efficiency and the stability of the speed, and improving the overall service life.

[0011] The step and the bearing of the second planetary support directly pre-position the limiting portion of the first output shaft, thereby ensuring the stability and reliability of the first output shaft after installation.

[0012] In a preferred implementation of the multifunctional food processor, there is a gap h1 between the inner side of the bearing and the first output shaft, and there is a gap h2 between the outer side of the bearing and the step, wherein 0.1≤h1≤0.3mm, and 0.3<h2≤0.7mm.

[0013] By setting the inner and outer clearances of the bearing, the bearing supports the first output shaft on the one hand, and prevents the first output shaft from being deformed too much, which may cause deformation and damage to the second planetary bracket or the second output shaft of the second planetary bracket.

[0014] In a preferred implementation of the multifunctional food processor, a first drive shaft for driving the second sun gear is connected between the first planetary carrier and the first output shaft.

[0015] The first drive shaft serves as an intermediate connecting piece to connect the first planetary bracket with the first output shaft. The first drive shaft can be manufactured separately as a metal part with high hardness and strength, and is injection molded onto the first planetary bracket to achieve a reliable connection between the first planetary bracket and the first output shaft, while achieving reliable transmission with the second sun gear.

[0016] In a preferred implementation of the multifunctional food processor, the first drive shaft is integrally connected to the first planetary support, and the first drive shaft is provided with a plug-in portion for separate connection with the first output shaft.

[0017] In a preferred implementation of the multifunctional food processor, the first drive shaft is integrally connected to the first planetary carrier, the second sun gear is integrally formed on the outer periphery of the first drive shaft, and the first output shaft is separately connected to the second sun gear.

[0018] In a preferred implementation of the multifunctional food processor, the first drive shaft is integrally connected to the first output shaft, and the first drive shaft is separately connected to the first planetary support.

[0019] The first output shaft is separately connected to the first planetary bracket, and the disassembly and assembly position can be flexibly adjusted as needed. For example, the three methods mentioned above, such as directly connecting the first output shaft to the first drive shaft detachably, connecting the first output shaft to the second sun gear detachably, and connecting the first output shaft to the first planetary bracket detachably through the first drive shaft (including connecting the first output shaft to the first planetary bracket detachably through the second sun gear), can ensure that the size of the first output shaft and the size of the second planetary gear set are not affected by each other under the premise of ensuring the axial matching relationship between the first output shaft and the first planetary bracket, which is conducive to reducing the size of the power assembly and facilitating storage. At the same time, the disassembly and assembly position can be flexibly adjusted according to the actual design and requirements to facilitate the overall installation of the power assembly.

[0020] In a preferred implementation of the multifunctional food processor, an inner coupling is integrally provided at the output end of the first output shaft;

[0021] The second planetary support is integrally formed or separately connected with a second output shaft, the second output shaft is connected to the second processed part, and the second output shaft is an external coupling.

[0022] The first output shaft is integrally provided with an inner coupling, which can be directly connected to the first planetary bracket with the help of the first output shaft and then driven, thereby transmitting power to the first workpiece, which reduces the assembly steps compared with the split connection method. The first output shaft is connected with the inner coupling instead of the outer coupling, which can avoid interference with the second output shaft in an environment with a small overall size space. The second output shaft is provided with an outer coupling to avoid being affected by the first output shaft during the transmission process.

[0023] In a preferred implementation of the multifunctional food processor, the power assembly further includes a fixed gear ring, which includes an integrally formed first gear ring and a second gear ring, the first planetary gear of the first reduction assembly meshes with the first gear ring, and the second planetary gear meshes with the second gear ring.

[0024] The fixed gear ring includes an integrally formed first gear ring and a second gear ring, and has a compact structure, which further improves the size of the power assembly. Moreover, the structure of the fixed gear ring is adapted to the assembly method in the present application, the first output shaft is limited in the second planetary bracket, and then the second planetary bracket and the first planetary bracket are respectively matched with the fixed gear ring, so that the connection between the first output shaft and the first planetary bracket can be achieved. The integration of the fixed gear ring is conducive to the second planetary bracket and the first planetary bracket being limited and installed at the same time, thereby improving the installation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0026] Figure 1 This is a schematic structural diagram of a multifunctional food processor in one embodiment of the present application.

[0027] Figure 2 This is a schematic diagram of the exploded structure of a power assembly in one embodiment of the present application.

[0028] Figure 3 This is a schematic diagram of the partial structural installation of a power component in one embodiment of the present application.

[0029] Figure 4 This is a schematic diagram of the cross-sectional structure of a power component in one embodiment of the present application.

[0030] Figure 5 This is a schematic diagram of the limiting relationship between the first output shaft and the second planetary bracket in one embodiment of the present application.

[0031] Figure 6 This is a schematic diagram of the circumferential gap formed by multiple second planetary gears in one embodiment of the present application.

[0032] Figure 7 This is a schematic diagram of the connection method between the first planetary bracket and the first output shaft in Example 1 of the present application.

[0033] Figure 8 This is a schematic diagram of the connection method between the first planetary bracket and the first output shaft in Example 2 of the present application.

[0034] Fig. 9 This is a schematic diagram of the connection method between the first planetary bracket and the first output shaft in Example 3 of the present application.

[0035] List of reference numerals:

[0036] 1-main engine, 21-cup cover, 22-cup body, 3-first processed part, 4-motor, 5-first reduction assembly, 51-first sun gear, 52-first planetary gear, 53-first planetary bracket, 54-first output shaft, 541-limiting part, 542-second flat position, 55-first drive shaft, 551-first flat position, 6-second reduction assembly, 61-second sun gear, 62-second planetary gear, 63-second planetary bracket, 632-bearing, 631-step, 7-fixed gear ring, 71-upper end cover, 72-lower end cover, 73-wear-resistant part, 74-first gear ring, 75-second gear ring. DETAILED DESCRIPTION

[0037] In order to more clearly illustrate the overall concept of the present application, a detailed description is given below in an illustrative manner in conjunction with the accompanying drawings.

[0038] It should be noted that many specific details are set forth in the following description to facilitate a full understanding of the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present application is not limited to the specific implementation methods disclosed below.

[0039] like Figure 1 As shown, in one embodiment, the multifunctional food processor includes a main machine 1 provided with a power assembly, a processing cup consisting of a cup cover 21 and a cup body 22, a first processing piece 3, and a second processing piece (not shown), Figure 2 , Figure 3 , Figure 4 The power assembly includes a motor 4, a first reduction assembly 5 and a second reduction assembly 6 driven by the motor 4, and a fixed gear ring 7. The first reduction assembly 5 and the second reduction assembly 6 drive the first processing part 3 and the second processing part respectively. Among them, the first reduction assembly 5 outputs a higher rotation speed, and the first processing part can be a crushing knife; the second reduction assembly 6 outputs a lower rotation speed, and the second processing part can be a stirring part, a dough kneading rod, etc. The first reduction assembly 5 includes a first sun gear 51, a first planetary gear 52, a first planetary bracket 53 and a first output shaft 54 ​​connected in a split manner. The first sun gear 51 is driven by the motor shaft of the motor 4. The second reduction assembly 6 includes a second sun gear 61 connected to the first planetary bracket 53, a plurality of second planetary gears 62 meshing with the second sun gear 61, and a second planetary bracket 63, such as Figure 5 , Figure 6 As shown, the circumferential gap L1 formed by the plurality of second planetary gears 62 is smaller than the maximum outer diameter L2 of the first output shaft 54 ​​, and the first output shaft 54 ​​is limitedly installed on the second planetary support 63 to be connected to the first planetary support 53 .

[0040] The present application is about the assembly of the first reduction assembly and the second reduction assembly. Figure 3 ,like Figure 3 As shown, the first output shaft 54 ​​is limitedly installed on the second planetary bracket 63 and assembled with the second planetary gear 62, and then installed into the fixed gear ring 7 according to the oblique upward arrow, and the first planetary gear 52 and the first planetary bracket 53 are installed into the fixed gear ring 7 according to the oblique downward arrow, and then the first output shaft 54 ​​is connected to the first planetary bracket 53. The specific connection method will be described in detail later.

[0041] Therefore, the multifunctional food processing machine provided by the present application, the first reduction assembly includes a first planetary bracket 53 and a first output shaft 54 ​​which are connected separately, and the first output shaft 54 ​​is connected to the first planetary bracket 53 in a disassembled manner, and the size of the first output shaft 54 ​​and the size of the second planetary gear set are not affected by each other under the premise of ensuring the axial matching relationship between the first output shaft 54 ​​and the first planetary bracket 53, and can be appropriately adjusted as needed. When the second planetary gear set is not limited by the size of the first output shaft 54, the circumferential gap formed by the plurality of second planetary gears 62 is smaller than the maximum outer diameter of the first output shaft 54, on the one hand, the overall size of the second reduction assembly is reduced, and the size of the overall power assembly is adjusted under the premise that the size of the first output shaft 54 ​​is not affected, and the size of the power assembly is reduced, which is convenient for users to use and store. On the other hand, the output end of the first output shaft 54 ​​can maintain the traditional size, and then adapt to the existing processing parts, without the need to adjust the size of the processing parts as standard parts, and can directly adapt to more current processing parts. The first output shaft 54 ​​is a detachable component and is independently arranged from the first planetary bracket 53. The first output shaft 54 ​​is limitedly installed in the second planetary bracket 63 to be connected with the first planetary bracket 53, that is, the traditional installation method is changed to avoid that an output shaft can only be limited by the first planetary bracket 53. During the assembly process, the first output shaft 54 ​​is first limited in the second planetary bracket 63, and then the second planetary bracket 63 is matched with the first planetary bracket 53, so as to realize the connection between the first output shaft 54 ​​and the first planetary bracket 53. Therefore, after the assembly is completed, the first output shaft 54 ​​is limited by the first planetary bracket 53 and is also limited by the second planetary bracket 63. The multi-layer limitation ensures reliable positioning and avoids the cantilever situation, thereby reducing the shaking of the first output shaft 54, maintaining the stable output of the first speed and the second speed, ensuring the transmission efficiency, and reducing the transmission noise.

[0042] In a preferred embodiment, the circumferential gap L1 formed by the plurality of second planetary gears 62 satisfies: 5 mm ≤ L1 ≤ 20 mm;

[0043] Preferably, the maximum outer diameter L2 of the first output shaft satisfies: 10 mm ≤ L2 ≤ 30 mm.

[0044] More preferably, the circumferential gap L1 formed by the plurality of second planetary gears 62 satisfies 5 mm ≤ L1 ≤ 16 mm; and the maximum outer diameter L2 of the first output shaft satisfies 16 mm < L2 ≤ 30 mm.

[0045] L1 is at least 5mm, which can effectively reduce the secondary speed, which is conducive to realizing the slow mixing function of the food processor, such as kneading and chopping, and avoiding splashing of food due to excessive speed during mixing; L1 is at most 20mm, which avoids the overall size of the secondary reduction component being too large, resulting in the size of the power component being too large, which is conducive to reducing the size of the whole machine and making it easier for users to hold and store.

[0046] L2 has a minimum of 10mm and a maximum of 30mm. On the one hand, it avoids the effect of too small size on the structural strength and ensures the reliable output of the first speed. On the other hand, it avoids too large size that causes the size of the whole machine to be too large.

[0047] Furthermore, 5mm≤L1≤16mm; 16mm<L2≤30mm, which is more conducive to the compactness of the overall size of the machine while ensuring the reliable output of the first output shaft.

[0048] In a preferred embodiment, Figure 3 , Figure 4 As shown, a limiting portion 541 is convexly provided on the outer periphery of the first output shaft 54 ​​, the outer diameter of the limiting portion 541 constitutes the maximum outer diameter of the first output shaft 54 ​​, and the limiting portion 541 is axially limited between the second planetary support 63 and the second planetary gear 62 .

[0049] In this embodiment, the circumferential gap L1 formed by the plurality of second planetary gears 62 is 16 mm, and the maximum outer diameter L2 of the first output shaft 54, that is, the outer diameter of the limiting portion 541, is 19 mm.

[0050] The first output shaft 54 ​​is provided with a limiting portion 541 to achieve limiting cooperation with the second planetary support 63. The outer diameter of the limiting portion 541 constitutes the maximum outer diameter of the first output shaft 54. During the assembly process, only the limiting portion 541 of the first output shaft 54 ​​needs to be aligned and installed, which facilitates the cooperation between the first output shaft 54 ​​and the second planetary support 63 and further avoids the overall size of the first output shaft 54 ​​and the size of the second planetary gear set from affecting each other. The outer diameter of the limiting portion 541 constitutes the maximum outer diameter of the first output shaft 54, and is axially limited between the second planetary support 63 and the second planetary gear 62, so that the limiting is more reliable and the axial positioning of the second planetary support 63 on the first output shaft 54 ​​is strengthened.

[0051] In a preferred embodiment, the second planetary bracket 63 is provided with a step 631 for mounting a bearing 632 , the bearing is sleeved with the first output shaft 54 ​​to radially support the first output shaft 54 ​​, and the inner diameter of the bearing 632 is smaller than the maximum outer diameter of the first output shaft 54 ​​.

[0052] The second planetary bracket 63 is provided with a step 631 and a bearing 632. The step 631 determines the matching position of the second output shaft to achieve support positioning, and can pre-position the first output shaft 54 ​​during assembly, which is convenient for installation and alignment. A bearing 632 is provided in the step 631, and the bearing 632 radially supports the first output shaft 54 ​​to ensure the concentricity of the installation. The step 631 and the bearing 632 cooperate to achieve all-round support for the first output shaft 54 ​​in the axial and radial directions, avoiding the problem of large shaking at the output end of the first output shaft 54, and further achieving stable output of the first speed and the second speed. In addition, the bearing 632 can be used as a wear-resistant component to avoid wear between the first output shaft 54 ​​and the second planetary bracket 63, ensuring the stability of the transmission efficiency and the speed, and improving the overall service life.

[0053] The step 631 and the bearing 632 of the second planetary bracket 63 directly pre-position the limiting portion 541 of the first output shaft 54 ​​to ensure the stability and reliability of the first output shaft 54 ​​after installation.

[0054] exist Figure 5 There is a gap h1 between the inner side of the bearing 632 and the first output shaft 54, and there is a gap h2 between the outer side of the bearing 632 and the step 631, wherein 0.1≤h1≤0.3mm, 0.3<h2≤0.7mm.

[0055] By setting the inner and outer clearances of the bearing 632, the bearing 632 supports the first output shaft 54 ​​on the one hand, and prevents the first output shaft 54 ​​from being deformed too much, which would cause deformation and damage to the second planetary bracket 63 or the second output shaft of the second planetary bracket 63.

[0056] In a preferred embodiment, Figure 3 , Figure 4 , Figure 5 As shown, a first drive shaft 55 for driving the second sun gear 61 is connected between the first planetary carrier 53 and the first output shaft 54 ​​.

[0057] The first drive shaft 55 serves as an intermediate connecting piece to connect the first planetary carrier 53 with the first output shaft 54. The first drive shaft 55 can be manufactured separately as a metal part with high hardness and strength, and is injection molded onto the first planetary carrier 53 to achieve a reliable connection between the first planetary carrier 53 and the first output shaft 54, while achieving reliable transmission with the second sun gear 61.

[0058] The present application does not limit the specific connection position between the first planetary bracket 53 and the first output shaft 54, and the specific position of disassembly and assembly can adopt any of the following embodiments:

[0059] Embodiment 1, as Figure 3 , Figure 4 , Figure 5As shown, the first drive shaft 55 is integrally connected with the first planetary support 53 . In fact, the first drive shaft 55 and the first planetary support 53 can be injection molded as one body. The first drive shaft 55 is provided with a plug-in portion to be separately connected with the first output shaft 54 ​​.

[0060] Preferably, Figure 7 As shown, in this embodiment, the plug-in portion is a first flat position 551, a flat position groove matching with the first flat position 551 is provided on the first output shaft 54, and the first output shaft 54 ​​is locked with the first flat position 551 by screws. Of course, it can also be replaced by a spline and a spline groove matching method.

[0061] Preferably, as shown in FIG7 , in this embodiment, the second sun gear 61 is integrally formed on the outer periphery of the first drive shaft 55. Of course, the second sun gear 61 can also be sleeved on the outer periphery of the first drive shaft 55 in a split manner.

[0062] Embodiment 2, as Figure 8 As shown, the first drive shaft 55 is integrally connected to the first planetary bracket 53 , which can be injection molded or integrally formed. The second sun gear 61 is integrally formed on the outer periphery of the first drive shaft 55 , and the first output shaft 54 ​​is separately connected to the second sun gear 61 .

[0063] Specifically, the first output shaft 54 ​​is provided with a second flat part 542 , and the second sun gear is provided with a flat part groove for the second flat part 542 to be inserted into.

[0064] Embodiment 3, as Fig. 9 As shown, the first drive shaft 55 is integrally connected to the first output shaft 54 ​​, and the first drive shaft 55 is separately connected to the first planetary support 53 .

[0065] Specifically, a third flat position is provided on the first driving shaft 55 to be inserted into the first planetary carrier.

[0066] As in the above three methods, the first output shaft 54 ​​is directly and detachably connected to the first drive shaft 55, the first output shaft 54 ​​is detachably connected to the second sun gear 61, the first output shaft 54 ​​is detachably connected to the first planetary bracket 53 through the first drive shaft 55 (including the first output shaft 54 ​​is detachably connected to the first planetary bracket 53 through the second sun gear 61), etc., all of which can ensure that the axial matching relationship between the first output shaft 54 ​​and the first planetary bracket 53 is ensured, so that the size of the first output shaft 54 ​​and the size of the second planetary gear set are not affected by each other, which is conducive to reducing the size of the power assembly and facilitating storage. At the same time, the disassembly and assembly parts are flexibly adjusted according to the actual design and requirements, which is convenient for the overall installation of the power assembly.

[0067] In a preferred embodiment, Figure 4As shown, the output end of the first output shaft 54 ​​is integrally provided with an inner coupling; the second planetary support 63 is integrally formed or separately connected with the second output shaft, the second output shaft is connected to the second processed part, and the second output shaft is an outer coupling.

[0068] The first output shaft 54 ​​is integrally provided with an inner coupling, which can be directly connected to the first planetary bracket 53 by means of the first output shaft 54 ​​and then driven, thereby transmitting power to the first workpiece, which reduces the assembly steps compared to the split connection method. The first output shaft 54 ​​is connected to the inner coupling instead of the outer coupling, which can avoid interference with the second output shaft in an environment with a small overall size space. The second output shaft is provided with an outer coupling to avoid being affected by the first output shaft 54 ​​during the transmission process.

[0069] In a preferred embodiment, Figure 2 As shown, the fixed gear ring 7 is provided with an upper end cover 71 and a lower end cover 72. Preferably, the motor bracket serves as the upper end cover 71, and a wear-resistant part 73 is provided on the inner side of the end cover. The wear-resistant part includes a wear-resistant bearing and a wear-resistant gasket.

[0070] In a preferred embodiment, the combination Figure 2 , Figure 3 The fixed gear ring 7 includes an integrally formed first gear ring 74 and a second gear ring 75 . The first planetary gear 52 of the first reduction assembly is meshed with the first gear ring 74 , and the second planetary gear 62 is meshed with the second gear ring 75 .

[0071] The fixed gear ring 7 includes a first gear ring 74 and a second gear ring 75 formed in one piece, which has a compact structure and further improves the size of the power assembly. Moreover, the structure of the fixed gear ring 7 is adapted to the assembly method in this application, and the assembly method is combined with Figure 3 The first output shaft 54 ​​is limited in the second planetary bracket 63, and then the second planetary bracket 63 and the first planetary bracket 53 are respectively matched with the fixed gear ring 7, so that the connection between the first output shaft 54 ​​and the first planetary bracket 53 can be achieved. The integration of the fixed gear ring 7 is conducive to the second planetary bracket 63 and the first planetary bracket 53 being limited in position and installed at the same time, thereby improving the installation efficiency.

[0072] In this application, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0073] The technical solutions protected by this application are not limited to the above-mentioned embodiments. It should be noted that the combination of the technical solutions of any one embodiment with the technical solutions of one or more other embodiments is within the scope of protection of this application. Although the application has been described in detail above with general descriptions and specific embodiments, some modifications or improvements can be made to it on the basis of this application, which is obvious to those skilled in the art. Therefore, these modifications or improvements made on the basis of not departing from the spirit of this application all belong to the scope of protection claimed in this application.

Claims

1. A multifunctional food processor, comprising a processing cup, a power assembly, a first processing piece and a second processing piece installed in the processing cup, wherein the power assembly comprises a motor, a first reduction assembly and a second reduction assembly driven by the motor, wherein the first reduction assembly and the second reduction assembly drive the first processing piece and the second processing piece respectively, wherein: The first reduction assembly includes a first planetary support and a first output shaft that are separately connected, the first planetary support is driven by the motor, the first output shaft is transmission-connected to the first processed part, the second reduction assembly includes a second sun gear connected to the first planetary support, a plurality of second planetary gears meshing with the second sun gear, a second planetary support transmission-connected to the second planetary gears, the second planetary support is transmission-connected to the second output shaft, the second output shaft is transmission-connected to the second processed part, the circumferential gap formed by the plurality of second planetary gears is smaller than the maximum outer diameter of the first output shaft, and the first output shaft is limit-mounted on the second planetary support to be transmission-connected to the first planetary support.

2. A multifunctional food processor according to claim 1, characterized in that: A limiting portion is convexly provided on the outer circumference of the first output shaft, the outer diameter of the limiting portion constitutes the maximum outer diameter of the first output shaft, and the limiting portion is axially limited between the second planetary support and the second planetary gear.

3. A multifunctional food processor according to claim 1 or 2, characterized in that: The second planetary support is provided with a step for mounting a bearing, the bearing is sleeved with the first output shaft to radially support the first output shaft, and the inner diameter of the bearing is smaller than the maximum outer diameter of the first output shaft.

4. A multifunctional food processor according to claim 3, characterized in that: There is a gap h1 between the inner side of the bearing and the first output shaft, and there is a gap h2 between the outer side of the bearing and the step, wherein 0.1≤h1≤0.3mm, and 0.3<h2≤0.7mm.

5. The multifunctional food processor according to claim 1, characterized in that: A first driving shaft for driving the second sun gear is connected between the first planetary carrier and the first output shaft.

6. The multifunctional food processor according to claim 5, characterized in that: The first drive shaft is integrally connected to the first planetary support, and the first drive shaft is provided with a plug-in portion to be separately connected to the first output shaft.

7. The multifunctional food processor according to claim 5, characterized in that: The first drive shaft is integrally connected to the first planetary support, the second sun gear is integrally formed on the outer periphery of the first drive shaft, and the first output shaft is separately connected to the second sun gear.

8. The multifunctional food processor according to claim 5, characterized in that: The first drive shaft is integrally connected to the first output shaft, and the first drive shaft is separately connected to the first planetary support.

9. The multifunctional food processor according to claim 1, characterized in that: The output end of the first output shaft is integrally provided with an inner coupling; The second planetary support is integrally formed or separately connected with a second output shaft, the second output shaft is connected to the second processed part, and the second output shaft is an external coupling.

10. The multifunctional food processor according to claim 1, characterized in that: The power assembly further includes a fixed gear ring, which includes a first gear ring and a second gear ring that are integrally formed. The first planetary gear of the first reduction assembly is meshed with the first gear ring, and the second planetary gear is meshed with the second gear ring.

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