CN114145664B

CN114145664B - Multifunctional food processor

Info

Publication number: CN114145664B
Application number: CN202111359272.7A
Authority: CN
Inventors: 朱泽春; 刘超; 刘敦国; 夏立国
Original assignee: Joyoung Co Ltd
Current assignee: Joyoung Co Ltd
Priority date: 2021-11-17
Filing date: 2021-11-17
Publication date: 2023-07-18
Anticipated expiration: 2041-11-17
Also published as: CN114145664A

Abstract

The invention discloses a multifunctional food processor, which comprises a host, a processing cup, a motor, a speed changing device, a clutch device, a first speed changing module and a second speed changing module, wherein the motor is arranged in the host, the stirring piece driven by the motor is arranged in the processing cup, the speed changing device comprises an input end, an output end, and the first speed changing module and the second speed changing module which are positioned between the input end and the output end, the clutch device comprises a driving module and a power transmission module, the driving module and the power transmission module are nested so that the driving module and the power transmission module are overlapped in the axial direction, the clutch device is connected with the speed changing device and drives the input end to be connected or disconnected with the power between the first speed changing module or the second speed changing module, so that the output end outputs different rotating speeds and drives the stirring piece. The speed changing device is provided with a plurality of groups of speed changing modules, and the clutch device can enable the same input to be combined among different speed changing modules so as to realize different output rotating speeds under the condition that the rotating speed of the motor is unchanged.

Description

Multifunctional food processor

Technical Field

The invention relates to the field of kitchen food processing, in particular to a multifunctional food processor capable of meeting the requirements of various processing functions.

Background

Along with the continuous promotion of people's living standard, the demand to food processing is continuously promoting, simultaneously, to the processing of food material more meticulous, the functional requirement is more diversified. Traditional food processor, partly can promote functions such as stirring, cutting, heating, and another part is through taking the multi-functional cup of reducing gear box certainly, realizes functions such as minced steak, shredding, section, dough mixing, has expanded the application range of food processor, has satisfied user's partial demand. The reason for this is that different functions have different requirements on rotation speed, for example, when the functions of breaking wall, such as soybean milk, are realized, very high rotation speed is required, and usually more than 20000 rpm is needed, so as to realize sufficient breaking wall and crushing of food materials. When the meat is minced, shredded and sliced, only a few thousand rotations per minute are needed; and further dough kneading and single stirring functions require hundreds or even tens of revolutions for the second minute.

In the prior art, the rotation speed adjustment can be realized generally by three types, the first type is directly driven by a motor, the motor can realize the output of various different rotation speeds, such as a reluctance motor, and the motor can realize the output of a wide range of rotation speeds so as to meet the requirements of different rotation speeds; the second type is provided with a motor capable of being adjusted in a smaller range, processing cups with different functions are configured, the processing cups with different functions are provided with different speed reducing devices, and different rotating speed requirements are realized through combination with a host machine; and thirdly, a motor and a speed reducer are arranged on the host machine, different functional requirements are required, and different rotating speeds can be output by changing the speed reducer.

However, the prior art still has the following problems. For the first technology, the cost of the motor and the control cost of the motor are relatively high, so that the cost of the food processor is relatively high, and the requirement of low-price products cannot be met. The second technology can be realized by using a motor with low cost compared with the first technology, but if different functions are needed to be realized, different speed reducing devices are needed to be configured for each different function, if more functions are needed, the needed speed reducing devices are correspondingly increased, and the cost is still higher when the functions are needed.

For the third scheme, the prior art, such as patent number CN201410005535.8, discloses a food processor, through setting up multiunit decelerator, set up shifter simultaneously, realize the combination between the different decelerator, realize the different rotational speed output when same not inputing to satisfy the demand of different rotational speeds. However, the following technical problems still exist in the technical scheme: first, in this scheme, must pass through decelerator between input and the output, the motor can not direct output drive, and because decelerator's participation for the availability factor of motor reduces, has reduced motor high-speed output's rotational speed simultaneously, influences high-speed function's normal use. Secondly, because the speed reducer continuously participates in the food processing machine, the speed reducer participates in the food processing machine when each function is used, namely, the noise caused by the use of the speed reducer is increased, the service life of the speed reducer is greatly reduced after the continuous use, and the normal service life of the food processing machine is influenced. Third, although a plurality of groups of speed reducing devices are arranged, the final reduction ratio is only 2.3-9.2, and when the rotation speed is required to be very low, the motor still needs to be output with lower rotation speed, and the high-performance output of the motor is affected. Fourth, the gear shifting mechanism of the prior art has complex structure and more occupied space, so that the volume of the whole speed changing device is increased, the whole volume of the food processor is increased, and the space is wasted; meanwhile, because the gear shifting structure directly acts on the rotary gear, the integral sealing of the speed reducing device is inconvenient, dust and the like easily enter between the gears, the normal work of the gears is influenced, the noise and the abrasion are increased, the normal service life of the speed reducing device is shortened, the lubricating oil is inconvenient to increase, and meanwhile, the service life and the noise are prolonged. Fifth, in the prior art, although there are multiple groups of speed reducers, the final outputs of different speed reducers are also different, so that the speed of the connection end of a single output is changed, and the motor still needs to be regulated, so that when the output of the motor is unchanged, different speed outputs can be realized by the single output end.

Disclosure of Invention

The invention aims to provide a multifunctional food processor which is provided with a plurality of groups of speed reducing devices and meets the combination output requirements of different rotating speeds.

In order to achieve the above purpose, the present invention adopts the following technical scheme: the utility model provides a multifunctional food processing machine, includes host computer, processing cup, motor, the motor set up in the host computer, be equipped with by motor drive's stirring piece in the processing cup, wherein, food processing machine still includes speed change gear and clutch, speed change gear includes input, output and is located first speed change module and the second speed change module between input and the output, clutch includes drive module and power transmission module, drive module and power transmission module nest so that drive module with power transmission module overlaps in the axial, clutch is connected and drives the input and select power connection or break away from between first speed change module or second speed change module, so that the output different rotational speeds and drive stirring piece.

Preferably, the first speed changing module and the second speed changing module are sequentially arranged along the axial direction, the driving module comprises a driving part and a driven part, the driving part is rotatably arranged to drive the driven part to move along the axial direction, so that the driving module drives the power transmission module to move along the axial direction, and the input end is connected with or separated from the first speed changing module or the second speed changing module in a power mode.

Preferably, the driving member and the driven member are respectively a nested outer frame and an inner frame, the outer frame is rotatably arranged and drives the inner frame to axially move, the power transmission module comprises a gear shifting head rotatably connected with the inner frame, the inner frame axially limits the gear shifting head so as to drive the gear shifting head to axially move, one end of the gear shifting head is in power connection with the input end, and the other end of the gear shifting head is in power connection with or separation from the first speed changing module or the second speed changing module when in axial movement.

Preferably, the output end comprises a first connector and a second connector, the first connector is in power connection with the gear shifting head, and the second connector is in power connection with the second speed changing module.

Preferably, the inner frame comprises a cabinet body and a frame, the gear shifting head is arranged on the frame, and the gear shifting head is rotationally connected with the frame through a bearing.

Preferably, the driving module further comprises a driving motor, external teeth are arranged on the outer side wall of the outer frame, the driving motor drives the outer frame to rotate through the external teeth, the outer frame is connected with the inner frame through threads, and the inner frame is driven to move axially when the outer frame rotates.

Preferably, the driving member and the driven member are provided with spiral surfaces matched with each other, the driving member is rotatably arranged and drives the driven member to axially move, the power transmission module comprises a gear shifting head rotatably connected with the driven member, the driven member axially limits the gear shifting head to drive the gear shifting head to axially move, one end of the gear shifting head is in power connection with the input end, and the other end of the gear shifting head is in power connection with or disconnection from the first speed changing module or the second speed changing module when axially moving.

Preferably, the driving module comprises a push rod and an elastic piece, the power transmission module comprises a gear shifting frame, the push rod and the elastic piece are connected with the gear shifting frame and are arranged on the outer side of the gear shifting frame, and the push rod and the elastic piece can push the gear shifting frame to move along the axial direction so as to be connected with or separated from the first speed changing module or the second speed changing module in a power mode.

Preferably, the output end comprises a high-speed output end and a variable-speed output end, the high-speed output end is directly in power connection with the motor, and the variable-speed output end is in power connection with the motor through the speed changing device.

Preferably, the first speed change module comprises a first planetary gear train, the second speed change module comprises a second planetary gear train, the first planetary gear train and the second planetary gear train are sequentially arranged along the axial direction, the first planetary gear train comprises a first planetary gear, a first planet carrier and a first planet frame, the second planetary gear train comprises a second planetary gear, a second planet carrier and a second planet frame, the clutch device comprises a gear shifting head capable of axially moving, and the gear shifting head can be respectively connected with or separated from the first planetary gear and the second planetary gear train when moving along the axial direction so as to be connected with or separated from the first planetary gear train or the second planetary gear train in a power mode.

Preferably, the first transmission module includes a first planetary gear train, the second transmission module includes a second planetary gear train, the first planetary gear train and the second planetary gear train are sequentially arranged along an axial direction, the first planetary gear train includes a first planetary gear, a first planet carrier and a first planet frame, the second planetary gear train includes a second planetary gear, a second planet carrier and a second planet frame, the clutch device includes a movable gear frame, and the movable gear frame moves along the axial direction to form the first planetary frame of the first planetary gear train or the second planetary frame of the second planetary gear train or is located between the first planetary gear train and the second planetary gear train to simultaneously engage the first planet carrier and the second planetary gear.

After the technical scheme is adopted, the invention has the following advantages:

1. the invention is provided with the speed changing device and the clutch device, the speed changing device is provided with a plurality of groups of speed changing modules, the clutch device can enable the same input to be combined among different speed changing modules so as to realize different output rotating speeds, and meanwhile, the clutch device can enable the speed changing device to be separated, so that the motor directly drives the output connector without participation of the speed changing device, thereby ensuring high-efficiency and high-speed output of the motor, enabling the speed changing device not to work when not needed, reducing noise and prolonging the service life of the speed changing device. Further, the clutch is selectively switched between different speed changing modules, so that different rotational speeds can be achieved at the same output end when the same input rotational speed is achieved, on one hand, the application range of the food processor is greatly improved, the corresponding processing cup connectors of a plurality of different output connectors are reduced, on the other hand, in the food processing process, different processing stage requirements can be required, the rotational speeds are automatically changed to meet the processing requirements, for example, a baking, drying and grinding and crushing processing program is required, the food is required to be baked and fried firstly, the extremely low rotational speeds of the food are required to be turned over during baking and frying, the baking and frying are even, and when the baking and frying are finished, the food is required to be crushed at a higher rotational speed, the processing process can be achieved simultaneously by outputting functions of different rotational speeds, and a user is prevented from realizing a single function by switching different processing components. Furthermore, the clutch device is arranged to selectively switch between different speed changing modules, so that when a plurality of groups of speed changing modules can be selected to be linked, the output of a high speed ratio can be realized, for example, the output of a high speed ratio of 30-140 is realized, thus, when the common series excited motor outputs at high efficiency and high speed, the lower rotation speed output can still be realized, the motor does not need to be subjected to excessively low speed adjustment, and the service efficiency of the motor is improved. Although the technical schemes of single input and single output with different rotation speeds exist in the field of automobiles or other machines, the technical scheme used in the technical scheme is completely different from the food processing field related to the application, no matter the technical scheme, the use environment, the reduction ratio requirement, the power transmission requirement, the volume requirement, the noise and the like are obviously different, and no reference technical scheme and corresponding technical teaching exists at all. When the driving module and the power transmission module are mutually nested in the axial direction, the driving module and the power transmission module are overlapped in the axial direction, so that the clutch device can be compressed in the axial direction, the axial dimensions of the whole speed changing device and the clutch device are reduced, and finally the overall height of the food processor is reduced. When overlapped, the driving module and the power transmission module have an overlapping proportion, and the overlapping proportion refers to the ratio of the overlapping dimension of the driving module and the power transmission module in the axial direction to the dimension of the accessory with smaller dimension in the axial direction. For example, when the power transmission module is nested inside the driving module, and the dimension L1 of the power transmission module in the axial direction is smaller than the dimension L2 of the driving module in the axial direction, and meanwhile, the overlapping dimension of the power transmission module and the driving module in the axial direction is L, the overlapping ratio is the ratio of the overlapping dimension L to the dimension L1 of the power transmission module, that is, L/L1. For the power transmission module and the driving module, there may be a completely nested position relationship between the two, for example, when the power transmission module is nested in the middle of the driving module, and the power transmission module is smaller in axial dimension, so that the power transmission module has a position relationship that falls into the driving module completely, and the overlapping proportion of the two reaches 100%, which can of course enable the clutch device and the food processor to achieve the minimum height in the axial direction. In particular, although there is an overlap between the drive module and the power transmission module, so that there is necessarily a certain overlap ratio, for the whole food processor, the dimension in the axial direction is not limited to the clutch device, but is limited to the transmission device, wherein the clutch device and the transmission device can be further arranged to overlap in the axial direction or at least partially overlap in the axial direction, so that the axial height of the food processor is reduced, if the clutch device is arranged to completely fall within the space dimension of the transmission device in the axial direction, the height of the food processor in the axial direction is not affected even if the smaller overlap ratio is arranged, and at this time, only the drive module and the power transmission module are required to be overlapped to realize the clutch function, namely, the overlap ratio is larger than 0 to realize the corresponding function. It should be noted, of course, that since the clutch device is used to adjust the transmission during operation, the relative position of the drive module and the power transmission module is varied, which also results in a varying state of the overlap ratio, where the overlap ratio refers to the ratio when the drive module and the power transmission module are at the maximum overlap ratio, i.e. when the drive module and the power transmission module are able to nest with each other to the maximum extent in the preset adjustable position of the food processor, the overlap ratio is calculated at this time.

2. The first speed changing module and the second speed changing module are sequentially arranged along the axial direction, so that the volume of the speed changing device can be conveniently compressed, the whole volume of the food processor is further reduced, and a user can conveniently control the food processor; on the other hand, the first speed changing module and the second speed changing module are axially and sequentially arranged, so that the first speed changing module and the second speed changing module can be conveniently connected with each other for working, further serial speed reduction is realized, and the speed reduction ratio is greatly improved; in addition, the axial is sequentially arranged, the clutch device is convenient to select or separate in the axial direction, different speed reduction transmission requirements are met, and when the speed reduction operation is not needed, the clutch device is convenient to separate the speed change device from the motor, so that the speed change device does not work in a non-working state, noise generated by the speed change device is reduced, and the service life of the speed change device is prolonged. Further, the clutch device is arranged on the driving module and the power transmission module which are mutually nested in the radial direction, wherein the driving module is used for driving the power transmission module to move so as to realize power connection or disconnection, thus the axial space can be compressed, the whole volumes of the speed changing device and the clutch device are further reduced, and the size is small; meanwhile, the driving module and the power transmission module are easy to control, the driving module can accurately control the power transmission module to reach a preset position to realize power transmission, and multi-position positioning transmission can be realized to realize the functional requirements of multi-rotation-speed output, power separation and the like. Compared with the prior art, the function can only be changed between two positions, the function is obviously improved, and the beneficial effect is obvious.

3. The driving part and the driven part are arranged, wherein the driving part can be rotatably arranged to drive the driven part to move along the axial direction, so that the movement mode of the driving module is changed from rotation to axial movement, and for the assembly formed by the speed changing device and the clutch device, only rotation is needed to be reflected outside, and axial movement is not needed to be carried out outside, so that the space outside is not occupied, and the speed changing device and the clutch device are compressed in the axial direction, so that the volume is smaller; meanwhile, the whole speed changing module and the clutch module are conveniently arranged in a closed space only by rotating the clutch module outside, and corresponding power input and output connection is reserved.

4. The outer frame and the inner frame which are mutually nested are arranged, the inner frame is driven to axially move through the rotation of the outer frame, the rotation can be changed into the axial movement, the outer frame is only required to be rotated outside the speed changing device and the clutch device, the axial and radial movement space is not required, and the volumes of the speed changing device and the clutch device can be greatly reduced. Meanwhile, the rotation effect is changed into axial movement, so that the rotation precision can be conveniently controlled, the axial movement precision can be further controlled, and the clutch device can be better ensured to be switched between preset positions. Further, because the movable part does not need to be arranged outside, the speed changing device and the clutch device can be arranged into a complete whole, the device is convenient to seal, dust and the like are guaranteed to enter the whole assembly, the service life is prolonged, the whole assembly is convenient to be filled with lubricating oil, moreover, the noise generated inside the whole assembly is not easy to transfer to the outside, and the noise generated in the whole assembly work can be effectively reduced.

5. The first connector and the second connector are arranged, wherein the first connector is directly connected with the gear shifting head in a power mode, high-speed output of a motor can be directly achieved without a speed changing device, and the rotating speed output of speed changing is needed.

6. The gear shifting head is rotationally connected with the frame by virtue of the bearing, the frame only needs to push the gear shifting head to move in the axial direction, and when the gear shifting head participates in power transmission, the gear shifting head and the frame do not need power transmission, so that the influence on the frame can be reduced, namely, the gear shifting head is ensured to participate in power transmission at a high speed, and the structural requirement of the frame is reduced.

7. Set up driving motor and external tooth and drive the frame rotation, owing to need not too big torsion when rotatory, can set up small, convenient motor of control, for example servo motor commonly used, driving motor passes through external tooth drive frame rotation, and frame and inside casing further pass through threaded connection, accessible screw thread promotes the inside casing in axial displacement in order to realize adjusting on the one hand, on the other hand, the auto-lock of usable screw thread prevents that the inside casing from moving relative frame, guarantees the accurate and the reliability of control.

8. The driving gear is further arranged to drive the outer frame, the upper shell and the lower shell are conveniently arranged to wrap all other parts except the driving motor, and the driving motor can penetrate through the upper shell or the lower shell to be connected with the driving gear, so that the speed changing device and the clutch device can be conveniently sealed inside the inner cavity, the inner cavity is isolated from the outside, the interference of external dust and the like is avoided, lubrication is facilitated, and noise is reduced.

9. The ejector rod and the elastic piece are utilized to push the gear shifting frame, the driving module and the power transmission module move axially, the occupied space when the driving module is arranged in other directions is reduced, and the compression of the space volume can be realized. The ejector rod and the elastic piece are used for synchronous control, and the control is accurate and the stroke is adjustable by utilizing acting force and reacting force. Similarly, because the driving module and the power transmission module are axially moved, only the ejector rod part can be arranged outside the inner cavity, and a sealing device can be arranged between the ejector rod and the shell, so that the inner cavity can be sealed.

10. The first planetary gear train and the second planetary gear train are arranged, the technology is mature, the production and the manufacture are convenient, and the planetary gear train can be commonly used with the prior art. And preferably, the first planet carrier is further provided with transmission gear teeth, and can be connected with the second planetary gear train in series when needed, so that the linkage of the two groups of speed reduction modules is realized, the output with high speed reduction ratio is realized, and meanwhile, the first planet carrier can also be directly connected with the gear shifting head in a power mode to realize single-stage speed reduction. Of course, the transmission may further superimpose more transmission modules, such as a third transmission module, a fourth transmission module, etc., to achieve more transmission output and greater reduction ratio adjustment. And to clutch, only rely on adjusting different sun gear positions, can realize different rotational speed outputs, control is simpler convenient to can realize more accurate control.

11. Through setting up movable gear frame come with different planet wheel control, clutch controls outside the gear train, more easily controls the position of movable gear frame, and the planetary gear train relative position of inside different groups need not adjust, and stability is high.

Drawings

Fig. 1 is a cross-sectional view of the whole structure of the multifunctional food processor according to the present invention.

Fig. 2 is an exploded view showing a transmission and a clutch device of a first embodiment of a food processor according to the present invention.

Fig. 3 is a schematic view showing a first embodiment of a speed changing device and a clutch device of a food processor according to the present invention in an exploded second state.

Fig. 4 is an exploded view showing a high-speed output state of the first embodiment of the food processor according to the present invention.

Fig. 5 is a schematic view showing a power transmission module of a first embodiment of the food processor according to the present invention.

Fig. 6 is a schematic view showing a gear shift head of a first embodiment of the food processor according to the present invention.

Fig. 7 is a sectional view showing a power transmission module structure of a first embodiment of the food processor of the present invention.

Fig. 8 is an enlarged partial schematic view of a in fig. 7.

Fig. 9 is a schematic view of a first planet carrier of a first embodiment of the food processor according to the present invention.

Fig. 10 is a cross-sectional view of a first planetary carrier structure of a first embodiment of a food processor in accordance with the present invention.

Fig. 11 is an enlarged partial view of an outer frame of a first embodiment of the food processor according to the present invention.

Fig. 12 is a cross-sectional view showing a first output state and a mating state of a first embodiment of a food processor according to the present invention.

Fig. 13 is a schematic view showing power transmission in a first output state of the first embodiment of the food processor according to the present invention.

Fig. 14 is a cross-sectional view showing a configuration of a second output state of the food processor according to the first embodiment of the present invention.

Fig. 15 is a schematic view showing power transmission in a second output state of the first embodiment of the food processor according to the present invention.

Fig. 16 is a cross-sectional view showing a configuration of a third output state of the food processor according to the first embodiment of the present invention.

Fig. 17 is a schematic view showing power transmission in a third output state of the food processor according to the first embodiment of the present invention.

Fig. 18 is an exploded view showing a transmission and a clutch device of a second embodiment of a food processor according to the present invention.

Fig. 19 is a cross-sectional view of a second embodiment of a stationary frame for a food processor in accordance with the present invention.

Fig. 20 is a cross-sectional view showing a structure of a second embodiment of the food processor of the present invention in a first output state.

Fig. 21 is a structural cross-sectional view showing a second output state of the second embodiment of the food processor of the present invention.

Fig. 22 is a partially enlarged schematic view of fig. 21B.

Fig. 23 is a partially enlarged schematic view of fig. 21C.

The drawings are labeled with the following corresponding names:

101. a processing module; 102. a host; 103. a motor; 1031. a motor bracket; 1032. a motor positioning hole; 104. a motor shaft; 105. processing a cup; 106. a cup cover; 107. a stirring knife; 21. a gearbox lower cover; 211. a motor mounting post; 212. a motor positioning column; 22. a gearbox upper cover; 221. an upper cover internal tooth; 222. an upper cover through hole; 25. an upper cover; 251. an upper cover fixing hole; 26. fixing the tooth frame; 261. internal teeth of the tooth frame; 262. fixing the tooth frame fixing holes; 263. tooth frame fixing ribs; 27. a lower cover; 271. a lower cover fixing hole; 28. a fixing bolt; 31. an outer frame; 311. an outer frame body; 312. outer frame teeth; 313. outer frame screw thread; 32. an inner frame; 321. an inner frame body; 322. inner frame screw threads; 323. internal teeth of the inner frame; 324. an inner frame fixing notch; 33. a shift fork; 331. a fork column; 332. a fork connecting rod; 333. a fork body; 3331. a shifting fork body is convex; 334. a fork bolt; 34. a drive gear; 35. a shift motor; 41. a shift head; 411. a shift head body; 4111. a shift head limiting plate; 4112. the limiting plate is convex; 412. a gear shifting head clamping groove; 413. shift head drive teeth; 414. a first flat position of the gear shifting head; 415. a second flat position of the gear shifting head; 416. a limit groove; 417. limiting snap springs; 418. a shift bearing; 4181. a bearing inner ring; 4182. a bearing outer ring; 419. a bearing spacer; 42. a first planet; 421. a first planet mounting hole; 422. a first planetary gear tooth; 43. a first planet carrier; 431. a first carrier body; 432. a first planet carrier mounting post; 433. first planet carrier drive teeth; 434. first planet carrier internal teeth; 435. a first carrier through hole; 51. a second carrier; 52. a second planet wheel; 521. a second planet wheel lower gear; 522. a gear on the second planet wheel; 523. a second planet wheel mounting hole; 53. a second output wheel; 531. a second output wheel; 532. a second output wheel mounting post; 61. a high-speed output shaft; 611. a first drive tooth; 62. a first connector; 63. a second connector; 711. a first fixed tooth frame; 7111. a fixed tooth frame body; 7112. fixing the tooth frame column; 7113. fixing the tooth frame mounting holes; 7114. fixing the inner teeth of the tooth frame; 712. a first planet; 713. a first planet carrier; 7131. first planet carrier outer teeth; 714. a first carrier tooth; 721. a second planet wheel; 722. a second carrier; 723. a second carrier tooth; 731. a third planet wheel; 732. a third carrier; 733. a bearing; 81. a shifting fork; 811. a fork body; 812. a fork column; 813. a fork frame; 814. a fork tooth; 82. a spring; 83. a push rod; 84. a movable tooth frame; 841. movable internal teeth; 842. a movable tooth frame fixing groove; 843. a movable tooth slot.

Detailed Description

In order to more clearly illustrate the general concepts of the present application, a detailed description is provided below by way of example in connection with the accompanying drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, the present application may be practiced otherwise than as described herein, and thus the scope of the present application is not limited by the specific embodiments disclosed below.

In addition, in the description of the present application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. The positional relationship of "upstream", "downstream" and the like is based on the positional relationship when the fluid normally flows.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In this application, unless specifically stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; the device can be mechanically connected, electrically connected and communicated; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In this application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The multifunctional food processor disclosed by the invention, as shown in figures 1-22, comprises a host machine, a processing cup and a motor, wherein the motor is arranged in the host machine, the processing cup is detachably connected with the host machine, a stirring piece is arranged in the processing cup, and when the processing cup is installed and connected with the host machine in place, the stirring piece can be driven by the motor to process food materials placed in the processing cup. The processing cup and the stirring piece can form a processing module together, and for different processed food materials, the stirring piece needs to work at different rotating speeds, for example, the food materials which are broken and crushed need to be realized, and generally more than 10000rpm (rpm: revolutions per minute) is needed, so that the food materials can be better cut and crushed, the cell wall breaking of the food materials is realized, and the nutrition is fully released; for the shredding and slicing process of the food material, 1000rpm-3000rpm is usually required, and better processing cannot be realized due to too high or too low; for dough mixing or stirring, 30rpm-300rpm is needed to better achieve dough kneading and food material overturning, and the food material is not needed to be crushed at high speed; in addition, in the case of a multifunctional food processor, it is also necessary to change the rotation speed during the processing, for example, when the food material is dry-milled, the food material is usually baked in advance for better pulverization and release of nutrients of the food material, that is, the moisture content of the food material is reduced, and nutrients and aroma of the food material are released. Alternatively, the food processor may further have a plurality of different processing modules, for example, a stirring and pulverizing module with a pulverizing knife, a shredding and slicing module composed of a shredding and slicing cup and a shredding and slicing knife for shredding and slicing, a meat mincing module composed of a meat mincing cup and a meat mincing knife for mincing meat, and a dry grinding module composed of a dry grinding cup and a dry grinding knife for dry grinding and pulverizing. The application food processor still includes speed change gear and clutch, and speed change gear includes input, output and is located first speed change module and the second speed change module between input and the output, and like this, speed change gear's input can be connected with motor power, and the stirring piece is connected with speed change gear's output power, under the unchangeable prerequisite of rotational speed of motor, and the output can output different rotational speeds to satisfy the work demand of multi-functional food processor. The clutch device is connected with the speed changing device, and the clutch device can drive the input end to be connected or disconnected in a power mode between the first speed changing module or the second speed changing module. Therefore, when the clutch device drives the input end to be disconnected with the first speed changing module or the second speed changing module, the input end is directly connected with the output end, and the motor is directly connected with the output end through the input end and further connected with the stirring piece in a power manner, so that high-speed output is realized; when the clutch drives the input end to be in power connection with the first speed changing module or the second speed changing module, the input of the motor is changed in speed through the first speed changing module or the second speed changing module respectively, different rotation speed outputs are achieved, and for the final output end, only a single output connector can be arranged and in power connection with the stirring piece, so that the single stirring piece has different rotation speeds at different clutch positions, and the adjusting range of the motor is further combined, so that the stirring piece has a sufficiently wide adjusting range, and the multifunctional use requirement of the food processor is met. Of course, the output end also can be provided with a plurality of different connectors, the stirring pieces can be arranged into a plurality of groups, and the stirring pieces of different groups are respectively connected with different output connectors so as to realize processing of the stirring pieces under the condition of different rotating speeds. It should be noted that, the main machine and the processing cup of the food processor can also be integrally provided, for example, the main machine is internally provided with a containing cavity to form a processing cavity, the processing cavity is internally provided with a stirring piece, and the motor is arranged in the main machine and is in power connection with the stirring piece through a speed changing device or directly.

Embodiment one.

As a first embodiment of the multifunctional food processor according to the present invention, as shown in fig. 1-17, the food processor includes a main machine 102 and a processing cup 105, a motor 103 is disposed in the main machine 102, a stirring member 107 is disposed in the processing cup 105, a cup cover 106 seals an upper opening of the processing cup 105, the cup cover 106 and the stirring member 107 together form a processing module 101, and the processing module 101 can be replaced according to different processing requirements. The motor 103 is in power connection with the stirring member 107 through the motor shaft 104 to drive the stirring member 107 to rotate and process the food material placed in the processing cup 105. Of course, it should be noted that, the processing cup 105, the cup cover 106 and the stirring member 107 are merely general processing modules for realizing one or several processing modes, and the processing module 101 is not limited to include these functional components, for example, the processing cup may be a wall-breaking stirring cup with a heating function, a container for realizing a slicing function, or a container for mincing meat and mixing dough; similarly, the stirring piece can also be a crushing cutter for realizing cutting and crushing, or a shredding and slicing cutter for realizing shredding and slicing functions, or a dough kneading meat mincing cutter for realizing meat mincing and dough kneading functions, even the stirring piece comprises a plurality of groups of cutters, and different cutters can have different speeds to realize different processing functions.

The food processor further comprises a speed changing device and a clutch device, preferably, the speed changing device and the clutch device are arranged on the host 102, the host 102 is provided with a lower gearbox cover 21 and an upper gearbox cover 22, the lower gearbox cover 21 and the upper gearbox cover 22 are mutually buckled to form a relatively closed inner cavity, and main functional components of the speed changing device and the clutch device are arranged in the inner cavity and are connected with external power through corresponding rotating shafts. It should be noted that, the relatively closed cavity refers to a cavity in which the other parts are closed except the necessary power input/output structure which can be connected to the outside through the sealing structure, and not to a cavity which is completely unrelated to the outside. The main functional components are functional components capable of realizing main speed changing function and clutch function, and functional modules connected with the outside are required to realize power transmission, and are usually arranged in the inner cavity partially, and the functional modules extend out of the inner cavity partially to realize power connection. The gearbox lower cover 21 is provided with a mounting table, the mounting table comprises a motor mounting column 211, a motor positioning column 212 is formed at the end part of the motor mounting column 211, the motor 103 is provided with a motor support 1031, a motor positioning hole 1032 is formed in the motor support 1031, the motor positioning column 212 penetrates through the motor positioning hole 1032, so that the motor 103 is directly and fixedly connected with the gearbox lower cover 21, and preferably, the motor positioning column 212 and the motor positioning hole 1032 are further provided with a shock absorbing piece (not shown). The motor mounting post 211 and the motor positioning hole 1032 are provided in a plurality of matching, and preferably, the motor mounting post 211 and the motor positioning hole 1032 are provided in four matching. The bottom surface of the lower gearbox cover 21 is provided with a through hole (not shown), and when the motor 103 is directly and fixedly connected with the lower gearbox cover 21, a motor shaft 104 of the motor 103 passes through the through hole to be in power connection with the speed changing device and the clutch device. Like this, when transmission and clutch set up in gearbox upper cover and gearbox lower cover, constitute the speed change subassembly jointly, and then with motor fixed connection has constituted power component jointly, power component can set up alone and after the equipment, install again in the host computer, like this, power component can be in the best working range of motor (the motor rotational speed does not adjust or under the rotational speed change condition of small circle, and guarantees that the motor is in best working rotational speed interval), has the power output of multiunit different rotational speeds to satisfy the multi-functional different rotational speed demands of food processor. Preferably, a sealing component is further arranged at the through hole so as to seal the inner cavity.

The speed change device comprises an input end, an output end, a first speed change module and a second speed change module, wherein the first speed change module and the second speed change module are positioned at the input end and the output end, and are preferably arranged as a planetary gear speed reduction system, and the first speed change module and the second speed change module are sequentially arranged along the axial direction, so that the first speed change module and the second speed change module can realize power series connection under the premise of fully compressing the axial space and the radial space, and further realize transmission of a larger reduction ratio. The lower gearbox cover 21 and the upper gearbox cover 22 are surrounded to form a relatively closed cavity, and the output end penetrate through the lower gearbox cover and the upper gearbox cover, preferably, the input end is arranged on the lower side and penetrates through the lower gearbox cover to be connected with motor power, and the output end is arranged on the upper side and penetrates through the upper gearbox cover to be connected with connector power and finally drive the stirring piece to rotate. Of course, the upper cover and the lower cover of the gearbox may be left and right structures fastened to each other, or the speed changing device and the clutch device may be disposed in a cavity formed by a single cover, such as the lower cover of the gearbox, where the upper cover of the gearbox only seals the cavity, which belongs to a general technical scheme in the prior art, and is not directly related to the present invention, and will not be described in detail herein.

The clutch device comprises a driving module and a power transmission module, wherein the power transmission module is respectively in power connection with a motor shaft and a speed change module and respectively transmits the power to different speed change devices. The drive module comprises an adjusting frame, a gear shifting fork 33, a drive gear 34 and a gear shifting motor 35. The adjusting frame is sleeved outside the speed changing module, the adjusting frame comprises an outer frame 31 and an inner frame 32, the outer frame 31 and the inner frame 32 are mutually nested, and preferably, the outer frame 31 is arranged outside the inner frame 32. The outer frame 31 includes an outer frame body 311, outer frame teeth 312 are provided on an outer side wall of the outer frame body 311, and outer frame threads 313 are provided on an inner side wall of the outer frame body 311. The outer frame teeth 312 are engaged with the driving gear 34, and when the gear shifting motor 35 drives the driving gear 34 to rotate, the outer frame 31 is further driven to rotate. The inner frame 32 comprises an inner frame body 321, an inner frame thread 322 is arranged on the outer side wall of the inner frame body 321, inner frame inner teeth 323 are arranged on the inner side wall of the inner frame body 321, and the outer frame 31 and the inner frame 32 are matched with each other through the outer frame thread 313 and the inner frame thread 322. In operation, the outer frame 31 can only rotate in the axial direction, but not move in the axial direction, and conversely, the inner frame 32 can only move in the axial direction, but not rotate in the axial direction, so that the outer frame 31 drives the inner frame 32 to move in the axial direction through threads, and the rotation of the gear shifting motor 35 is converted into the movement in the axial direction of the speed changing device. The shift fork 33 is connected with the inner frame 32, and when the inner frame 32 moves in the axial direction, the shift fork 33 is driven to move in the axial direction. The shift fork 33 includes a fork post 331, a fork connecting rod 332, and a fork body 333, and the shift fork 33 is connected with the inner frame 32 through the fork post 331. The power transmission module includes a shift head 41, and the shift fork 33 is rotatably connected to the shift head 41. When the gear shifting motor 35 drives the inner frame 32 to axially move, the inner frame 32 can further drive the gear shifting head 41 to axially move, and meanwhile, the gear shifting head 41 can rotate relative to the gear shifting fork 33, so that the driving module can realize the gear shifting requirement only by driving the gear shifting head to axially move, and the driving module does not need to participate in power transmission, has mutually isolated functions, and can ensure that each module works in an optimal working state. The shift head 41 includes a shift head body 411, a shift head catching groove 412, and a shift head driving tooth 413. Preferably, two shifting forks 33 are disposed opposite to each other on both sides of the shift head 41, such that two opposite shifting fork bodies 333 are surrounded in a circular shape and inserted into the shift head clamping groove 412 to drive the shift head 41 to move in the axial direction and rotate relative to the shift head 41.

To achieve compression in the axial dimension, first, the drive module and the power transmission module are nested within each other such that there is axial overlap between the drive module and the power transmission module. In this embodiment, the shift fork 33 is connected to the middle position of the shift head 41, so that the shift head 41 is nested in the adjusting frame at an axial position, further, the size of an overlapping portion of the shift head 41 and the adjusting frame in the axial direction is L, the size L1 of the shift head 41 is set to be smaller than the size L2 of the adjusting frame (at this time, the axial size of the adjusting frame forms the axial size of the driving module), the ratio of the shift head 41 to the adjusting frame is L/L1, where L/L1 is less than or equal to 100%, and preferably, the overlapping ratio is 30% -80%, for example, may be 35%, 40%, 45%, 50%, 55%, 60%, 65%, 70%, 75%, etc.

Because the outer frame 31 and the inner frame 32 are nested with each other, and the outer frame only needs to rotate and does not need to move in the axial direction, the circumferential direction, the radial direction and the like when in operation, therefore, for the whole speed changing device and the clutch device, the occupied space is small, and the occupied space is more limited by the outer frame, therefore, for the speed changing device and the clutch device, the outer frame and the clutch device can be conveniently arranged in a cavity formed by the lower cover of the speed changing device and the upper cover of the speed changing device, meanwhile, the lower cover of the speed changing device and the upper cover of the speed changing device are also conveniently arranged in a closed space, and only an input shaft and an output shaft for transmitting power pass through, such as a motor shaft, an output shaft or a motor shaft of a gear shifting motor, and the shafts are easy to be provided with a rotary sealing structure when passing through the lower cover of the speed changing device or the upper cover of the speed changing device, so that on one hand, the sealing effect of the cavity is good, on the one hand, noise generated when the speed changing device and the clutch device work can be prevented, on the other hand, the lubricating oil can be conveniently arranged, the working environment of the speed changing device and the clutch device is better, the working life of the speed changing device and the clutch device can be improved, and the closed cavity can also effectively prevent external impurities from entering, and ensuring that the external impurities to work. Meanwhile, the outer frame and the inner frame which are mutually nested are mutually overlapped in the axial direction, so that the axial dimensions of the speed changing device and the clutch device are compressed, a large range cannot be occupied in the axial direction, the axial dimension of the food processor is reduced, and the problem that the food processor, particularly a main machine, needs to be provided with enough height in the axial direction to influence the normal control of a user is avoided.

The first transmission module includes a first planet gear 42, a first planet carrier 43. The first planet gears 42 are mounted on a first planet carrier 43. When the shift head 41 is moved into power connection with the first transmission module, the shift head driving teeth 413 are inserted into the first planetary gears 42 to constitute the sun gear of the first transmission module, and at the same time, the inner frame inner teeth 323 of the inner frame 32 constitute the frame of the first transmission module. During operation, the gear shifting head 41 drives the first planet gears 42 to rotate, and the first planet gears 42 simultaneously rotate in the inner frame inner teeth 323 and drive the first planet carrier 43 to rotate, so that first-stage speed reduction is realized.

The second transmission module comprises a second planet carrier 51, a second planet wheel 52, a second output wheel 53. The inner side wall of the upper cover 2 of the gearbox is provided with inner cover teeth 221 to form a gear frame of the second planet gears 52. When the gear shifting head 41 is in power connection with the first speed changing module and is in power connection with the second speed changing module through the first speed changing module, the first planet carrier 43 simultaneously forms a sun gear of the second speed changing module so as to drive the second planet gears 52 to rotate, and simultaneously makes planetary revolution in the inner teeth 221 of the upper cover so as to drive the second planet carrier 51 and the second output gear 53 to rotate and realize power output. Thus, the output of the motor is transmitted to the speed changing device through the gear shifting head 41, and after two-stage speed reduction through the first speed changing module and the second speed changing module, the transmission with a large speed reduction ratio is realized, and preferably, the speed reduction ratio after two-stage speed reduction can reach 30-140 times of speed change. When the gear shift head 41 is directly meshed with the second planetary gear 52, the gear shift head 41 skips the first-stage transmission module and directly transmits power to the second transmission module, the power of the motor is changed by the second transmission module only, and a smaller gear ratio is realized compared with the two-stage transmission, and the gear ratio is preferably set to 10-20 times. Further, an output module in power connection with the first planet carrier 42 may be further provided, so that the power of the motor may be changed through the first speed changing module, so that under the same input state, the output module has different output states through the first speed changing module, the second speed changing module and the two-stage speed changing module, and the requirement of outputting different rotation speeds from the output end is met.

Preferably, the food processor further comprises a high-speed output shaft 61, and the high-speed output shaft 61 can be directly connected with the motor through the gear shifting head 41 in a power mode, so that high-speed output of the motor is realized. In this embodiment, the output end of the host machine includes a first connector 62 and a second connector 63, where the first connector 61 is directly connected with the high-speed output shaft 62, and the second connector 63 is connected with the second output wheel 53, so that the first connector 62 can directly output a high rotation speed, and the second connector 63 can realize different rotation speed output through different speed changing combinations on the premise that the motor input is unchanged. The gear shifting head body 411 is internally and throughout arranged, and comprises a gear shifting head first flat position 414 positioned at the lower end and a gear shifting head second flat position 415 positioned at the upper end, the gear shifting head 41 is in power connection with the motor shaft 104 through the gear shifting head first flat position 414, and is in power connection with the high-speed output shaft 61 through the gear shifting head second flat position 415, wherein the gear shifting head first flat position 414 and the gear shifting head second flat position 415 are arranged to still realize power connection when the gear shifting head 41 moves along the axial direction, or realize power connection or power disconnection only when reaching a preset position.

The side wall of the inner frame 321 is further provided with an inner frame fixing notch 324, the shift fork column 331 is disposed at the inner frame fixing notch 324, and the shift fork column 331 is fixedly connected with the inner frame 32 through a shift fork screw 334, so that the shift fork 33 and the inner frame 32 are integrally disposed. Further, a limiting groove 416 is further formed in the outer side wall of the gear shifting head 411, a limiting clamp spring 417 is arranged at the limiting groove 416, and a gear shifting bearing 418 and a bearing gasket 419 are arranged at the clamp spring 417. The outer side wall of the shift head body 411 extends outwards to form a shift head limiting plate 4111, and the shift head limiting plate 4111 and the bearing pad 419 together form the shift head clamping groove 412. The shift bearing 418 is disposed at the shift head slot 412, the shift head limiting plate 4111 is provided with a limiting plate protrusion 4112, and the shift body 333 is disposed at the shift head slot 412 and is provided with a shift body protrusion 3331 extending radially inward. The shift bearing 418 includes a bearing inner ring 4181 and a bearing outer ring 4182, preferably, the limit plate protrusion 4112 abuts against the bearing inner ring 4181, and the fork body protrusion 3331 abuts against the bearing outer ring 4182, so that the shift head 41 and the shift fork 33 relatively rotate through the bearing, thereby reducing friction and noise between the shift head and the shift fork, and realizing more stable and reliable power transmission.

The first planet carrier 43 includes a first planet carrier body 431, a first planet carrier mounting post 432, and first planet carrier driving teeth 433, the first planet carrier mounting post 432 is located on the lower surface of the first planet carrier 431, and correspondingly, the first planet carrier 42 is provided with a first planet carrier mounting hole 421 and first planet carrier teeth 422, and the first planet carrier 42 is rotatably mounted on the first planet carrier mounting post 432 through the first planet carrier mounting hole 421, preferably, the first planet carrier 42 is three, and the first planet carrier mounting post 432 is three. A first planet carrier internal tooth 434 is further disposed on the lower surface of the first planet carrier body 431 corresponding to the first planet carrier gear 433, and the first planet carrier internal tooth 434 may mesh with the shift head driving tooth 413 to achieve power transmission. The center of the first planet carrier 43 is provided with a first planet carrier through hole 435, and the first planet carrier through hole 435 can be used for the high-speed output shaft 61 to pass through.

Preferably, the outer frame 31 and the inner frame 32 are connected by threads, and when the outer frame 31 rotates, the inner frame 32 is driven to move in the axial direction, and the shift fork 33 is further driven to push the shift head 41 to reach a preset position, so as to realize clutch speed change. Further, in order to better achieve the transfer between the outer frame 31 and the inner frame 32 and to simultaneously prevent the inner frame 32 from freely moving or reversely pushing the outer frame 31 and displacing after reaching a designated position, the thread pressure angle of the inner frame threads 322 of the inner frame 32 is set to α, preferably, the thread pressure angle α is less than or equal to 5 °. Like this, can drive the inside casing when the frame rotates and at axial displacement, and when the frame stopped rotating, can realize the auto-lock at the screw thread between frame and the inside casing, and can not reverse promotion frame and make the inside casing shift, guarantee speed change module in the variable speed position of predetermineeing. Of course, the pressure angle between the outer frame and the inner frame can be larger than the screw pressure angle, and the preset positions of the outer frame and the inner frame can be ensured by other locking modes. For example, the position of the inner frame and the gear shifting head can be stabilized by means of the locking position of the gear shifting motor, and the driving gear and the outer frame are driven to be locked.

The shift implementation of the shifting device and the clutch device is further described below in conjunction with fig. 12-17.

As shown in fig. 12 and 13, the power transmission state of the food processor in the first output state (high-speed state) is shown. In this state, the motor 103 is in power connection with the shift head 41 through a motor shaft 104 (not shown). Meanwhile, the gear shifting motor 35 drives the driving gear 34 to rotate, and drives the outer frame 31 to rotate so as to enable the inner frame 32 to axially move, and drives the gear shifting head 41 to be separated from the first speed changing module, at this time, the first planet gears 42 are not contacted with the gear shifting head 41, the first speed changing module and the second speed changing module have no power output, the food processor only has the first connector 61 to rotate, and the second connector 62 does not rotate, so that high-speed output is realized. In this state, the first connector 61 is directly driven by the motor, and normally operates at the rotational speed of the motor itself in the range of 10000rpm to 50000rpm. As shown in fig. 13, which is a power transmission diagram of the first output state, the motor shaft 104 is directly connected to the shift head 41, and the shift head 41 is not connected to the transmission module, so that the power is directly connected to the output through the high-speed output shaft 61. The advantages of this arrangement are that: generally, the most used processing environment of multi-functional food processor still is the high-speed state, including broken wall crushing, dry grinding smashes, fruit juice, crushing ice etc. all is processing under the high-speed state, consequently, the high-speed state that directly utilizes the motor and need not be the most efficient mode of processing through speed change gear, for prior art, this application can be simple the direct output of realization motor through clutch, and no longer need add the transmission with speed change gear, guarantee machining efficiency, but also reducible speed change gear produces vibration noise. Meanwhile, the clutch device can cut off the power connection between the motor and the speed changing device when in high-speed output, so that the speed changing device does not participate in power transmission when in a high-speed output state, thereby avoiding the reduction of processing efficiency due to idle work of the speed changing output generated after the speed changing device participates in the speed changing output, avoiding the noise and abrasion generated by continuous work of the speed changing device when in a non-output state, reducing the noise when the food processor works, and further improving the normal service life of the food processor. Of course, during the high speed output process, the food processor may also output different rotational speeds synchronously by the speed change device to synchronously drive different sets of stirring members to achieve multiple sets of outputs, as will be described in detail below.

As shown in fig. 14 and 15, the power transmission state of the food processor in the second output state (first deceleration mode) is shown. In this state, the shift motor 35 drives the driving gear 34 to rotate, further drives the outer frame 31 to rotate so as to drive the inner frame 32 to move upwards in the axial direction, and the inner frame 32 further drives the shift fork 33 and the shift head 41 to move upwards in the axial direction, and finally makes the shift head driving teeth 413 mesh with the first planet gears 42, and further, the first planet gears 42 mesh with the inner frame inner teeth 323. When the motor drives the gear shifting head 41 to rotate through the motor shaft, the gear shifting head drives the first planet gears 42 to rotate and further revolve in the inner frame inner teeth 323, and when the first planet gears 42 revolve, the first planet carrier 43 is driven to rotate, so that the speed reduction of the first speed changing module is realized. The first planet carrier driving gear 433 is further meshed with the second planet gear 52 to form a sun gear of the second speed changing module, the first planet carrier driving gear 433 drives the second planet gear 52 to rotate, meanwhile, the second planet gear 52 revolves in the upper cover internal tooth 221 and drives the second planet carrier 51 and the second output gear 53 to rotate, and the second output gear 53 finally drives the second connector 63 to rotate, so that the speed reduction of the second speed changing module is realized. With further reference to fig. 15, the power transmission path of the food processor is: the motor shaft 104 drives the first planetary gear 41 to revolve through the gear shifting head 41, drives the first planetary gear frame 43 to rotate to realize first-stage speed change, synchronously drives the second planetary gear 52 to revolve through the first planetary gear frame, drives the second output wheel 53 to rotate to realize second-stage speed change, and finally is output by the second connector 63. The advantages of this arrangement are that: when the food processor needs to output after speed change, the clutch drives the motor to be in power connection with the speed change device, so that low-speed output of the food processor is realized, and corresponding functional requirements are met. The speed change device is overlapped with the speed reduction of the first speed change module and the second speed change module, namely the product of the speed reduction ratio i1 of the first speed change module and the speed reduction ratio i2 of the second speed change module, so that the speed change device can realize the speed reduction of a large speed reduction ratio, and the speed reduction ratio after two-stage speed reduction can achieve speed change of 30-140 times. Thus, in the high-rotation-speed output state of the motor, for example, 18000rpm state, the rotation speed output of hundreds or even less than one hundred can still be realized, if the adjustment range of the motor is combined, the extremely low rotation speed lower than fifty revolutions per minute can be realized at the lowest, and the rotation speed range can meet the processing such as turning and stirring of food materials, and the surface structure of the food materials can not be broken, and the food materials can not be cut and crushed. After the power of the motor is reduced by a large speed change ratio, the corresponding multiple of the working torque is increased, for example, when the reduction ratio is 60 times, the corresponding torque is increased by 60 times (theoretical calculated value, actual value cannot be completely the same due to loss), so that the motor with high speed and low torque is converted into output with low speed and high torque, and the requirements of low-speed and high-torque working environments such as juice extrusion, dough kneading and the like are met, and the application range of the food processor is wider.

As shown in fig. 16 and 17, the power transmission state of the food processor in the third output state (second decelerating state) is shown. In this state, the shift motor 35 further drives the driving gear 34 and the outer frame 31 to rotate, so as to drive the inner frame 32 to further move upwards along the axial direction, and finally the shift head driving teeth 413 are inserted into the first planet carrier inner teeth 434, at this time, the shift head 41 can directly drive the first planet carrier 43 to rotate, and skip the first speed reduction module. Preferably, when the inner frame 32 moves upward, the first planetary gears 42 are disengaged from the inner teeth 323 of the inner frame, so that the shift head 413 drives the first planetary gears 42 and the first carrier 43 synchronously, but only idles without power output during operation due to the peripheral free space of the first planetary gears 42. Of course, it is also possible to provide for the shift head drive teeth 413 to be switched between the inner frame internal teeth 323 and the first planet gears 42, i.e. to disengage from the inner frame internal teeth 323 when engaged with the first planet gears 42, and to disengage from the first planet gears 42 when engaged with the inner frame internal teeth 323, so as to ensure that different deceleration positions are achieved. In this state, the motor shaft 104 is directly in power connection with the first planet carrier 43 through the gear shifting head 41, drives the first planet carrier 43 to rotate and drive the second planet gears 52 to revolve, and is output by the second output wheel 53, and finally drives the second connector 61 to rotate and output, so as to achieve the speed reduction of the second speed changing module. Referring to fig. 17, the power transmission path of the food processor is: the motor shaft 104 drives the first planet carrier 43 to rotate through the gear shifting head 41, the first planet carrier synchronously drives the second planet wheels to revolve, speed change is realized, and finally the second planet wheels are output by the second connector 63. The advantages of this arrangement are that: the power is transmitted only through the deceleration of the second gear shift module and not through the deceleration of the first gear shift module, and the food processor has a mid-range deceleration, at which time the output reduction ratio is 10-20 times. When the motor is at the same rotation speed as the first deceleration state, for example, 18000rpm, the output after deceleration can realize the rotation speed output of 1000rpm-3000rpm, and likewise, if the motor is combined with the adjustment range of the motor, the adjustment within the range below 8000rpm can be realized, and the functions of shredding, slicing, mincing and the like can be processed. In particular, the present invention is convenient in such a setting, and realizes that the second connector 63 has the condition that the rotation speed of the motor is completely the same, and can realize different rotation speed outputs, without changing different connectors to realize different rotation speed outputs, and in such a setting mode, for the food materials with the rotation speed required to be changed in the whole processing process, for example, baking and dry grinding, the food materials can be firstly stirred at a low rotation speed to realize the turnover baking of the food materials, and then the dry grinding and the grinding are carried out at a high speed; the novel food processor is also suitable for functions of meat mincing, vegetable cutting and the like, and can realize low-speed overturning to enable food materials to be more uniform in a high-speed processing process, so that the application range of the food processor is widened. Compared with the prior art, the motor has the advantages that the motor also has the functions of speed reduction and clutch, under the condition of unchanged input, the same output connector cannot realize speed adjustment, different processing containers and connectors are needed to be replaced to realize different rotational speed outputs, the rotational speed in a single processing process is changed, the motor still needs to be correspondingly adjusted, the adjustment range is small, and the motor cannot work under the optimal working condition. According to the scheme, in a single machining process, the working state of the motor is not changed, adjustment is realized only by virtue of the speed changing device and the clutch device, the working performance of the motor cannot be lost, and the motor is realized only by virtue of the structure, so that the motor is low in cost and stable and reliable in operation. Furthermore, as the speed changing device and the clutch device are sequentially arranged in the axial direction, the clutch device only shows a rotary working mode outside, and does not occupy an excessive space in the axial direction, so that the speed changing device and the clutch device can be conveniently arranged in a closed cavity, thereby reducing working noise, and improving the working stability and the service life of the speed changing device and the clutch device.

Preferably, the shift head 41 and the high-speed output shaft 61 are in power connection in three working states, which has the following advantages: the gear shifting head and the high-speed output shaft are in a high-speed working state without passing through the speed changing device, and even under the continuous working condition, larger noise and structural abrasion cannot be generated, so that the overall influence on products is small. Meanwhile, the lower end of the gear shifting head is connected with the motor shaft in actual work, and the upper end of the gear shifting head is connected with the high-speed output shaft, so that the two ends of the gear shifting head are positioned, and the gear shifting head is stable and reliable in work. Furthermore, if frequent switching alignment is required between the gear shifting head and the high-speed output shaft, abrasion of the gear shifting head and the high-speed output shaft is increased, and gaps are easily generated between the gear shifting head and the high-speed output shaft, so that vibration and noise are generated in the working process. The power transmission state of the gear shifting head and the high-speed output shaft is not changed, only the relative position between the gear shifting head and the high-speed output shaft is changed, the gear shifting head and the high-speed output shaft can be ensured to be always in the optimal fit clearance, and the power transmission is stable and reliable.

It can be appreciated that the screw pressure angle between the outer frame and the inner frame may be set to other angles, and the food processor is further provided with a locking structure, so that when the inner frame and the outer frame reach a preset position, the outer frame, the inner frame or the gear shifting head is locked to ensure that the speed changing device and the clutch device work at the preset position.

It can be appreciated that when in a decelerating state, the gear shifting gear head and the high-speed output shaft can realize power disconnection in a dislocation flat shaft mode, so that intermediate high speed is not output in the decelerating state.

It can be appreciated that the driving module includes a driving member and a driven member, where the driving member and the driven member are respectively an upper driving member and a lower driving member that are mutually matched in an axial direction, the driving member may be an upper driving member or a lower driving member, and the driven member may be a corresponding lower driving member or an upper driving member, where the upper driving member and the lower driving member have mutually matched spiral surfaces, and further the upper driving member and the lower driving member have mutually overlapped portions in the axial direction, so that when the upper driving member or the lower driving member rotates, the driving member matched with the upper driving member and the lower driving member can be driven to move up and down, and further the driving power transmission module moves in the axial direction to implement clutch adjustment. The spiral surfaces matched with each other between the upper driving piece and the lower driving piece can be directly arranged on the opposite end surfaces of the upper driving piece and the lower driving piece, or can be sleeves sleeved with each other, and opposite spiral surfaces are arranged on the outer side walls of the sleeves.

It will be appreciated that the first carrier and the first carrier drive teeth are configured for removable power connection, and that when the shift head drive teeth are engaged with the first carrier internal teeth, the shift head can also synchronously push the first carrier drive teeth out of engagement with the first carrier, thereby enabling the first transmission module to have no power input when the second transmission module is in operation, reducing wear of the first transmission module.

It is understood that the clutch device includes a threaded rod connected to the motor and driving the inner frame to move up and down, and directly drives the inner frame to move up and down when the motor rotates without providing the outer frame.

It will be appreciated that the transmission may also include an output directly connected to the first transmission module to effect a reduced speed output through the first transmission module alone. Of course, the final output connectors may be identical, and the same connectors may have different output rotational speeds through the intermediate adjustment structure.

It will be appreciated that the speed change means and clutch means may be provided directly on the motor, together with the motor, to form a motor assembly having speed change and clutch functions, without the need for providing corresponding upper and lower covers, the motor assembly being further mounted within the host machine. Or the upper cover and the lower cover synchronously seal the motor assembly.

It can be appreciated that the stirring piece can be directly connected with the output end of the speed changing device without arranging a connector, and the stirring piece realizes different functions according to different output rotating speeds; or the stirring piece is directly detachably connected with the speed changing device, and different stirring pieces are replaced according to different functions.

It will be appreciated that the drive module may also be directly embedded in the power transfer module. For example, the power transmission module is a gear shifting head sleeved on the high-speed shaft, the driving module is a driving motor in threaded connection with the high-speed shaft, and the driving module is directly embedded in the gear shifting head and drives the gear shifting head to axially move so as to realize clutch.

It will be appreciated that the drive module and the power transmission module may also be driven by non-contact. For example, the power transmission module and the driving module are both magnetic, the power transmission module comprises a gear shifting head, the driving module comprises a driving piece, and the driving piece drives the gear shifting head to move by virtue of magnetism so as to realize clutch transmission.

It can be understood that the food processor further comprises a detection device for detecting the position of the clutch device and a control device for controlling the clutch device to move, and the control device controls the clutch device to reach a preset clutch position according to a processing program, so that a corresponding speed reduction function or no speed reduction is realized, and corresponding food processing is realized.

Embodiment two.

As a second embodiment of the multi-function food processor of the present invention, as shown in fig. 18-22, the transmission further includes a third transmission module as compared to the first embodiment. It should be noted that, the descriptions of the specific first embodiment and the second embodiment do not refer to that the solutions of the two embodiments are completely independent of each other, but only for embodying two preferred technical solutions, and the technical features and technical solutions of the two embodiments are universal and can be mutually referred to.

In this embodiment, as shown in fig. 18-22, the food processor includes a speed changing device, a clutch device, an upper cover 25, a fixed gear frame 26, and a lower cover 27, the upper cover 25 is provided with an upper cover fixing hole 251, the fixed gear frame 26 is provided with a gear frame inner tooth 261 and a fixed gear frame fixing hole 262, the lower cover 27 is provided with a lower cover fixing hole 271, and the upper cover 25, the fixed gear frame 26, and the lower cover 27 are fixedly connected by fixing bolts 28 and form a relatively closed cavity therein. The speed changing device and the clutch device are at least mostly arranged in the cavity.

The speed change device comprises an input end, an output end, a first speed change module, a second speed change module and a third speed change module, wherein the first speed change module, the second speed change module and the third speed change module are positioned between the input end and the output end. The input end comprises a high-speed output shaft 61 connected with a motor shaft of the motor, and a first driving tooth 611 is arranged on the high-speed output shaft 61. The output comprises a first connector 62 directly connected to the high speed output shaft 61 and a second connector 63 connected to the third gear shift module.

The first transmission module includes a first fixed gear frame 711, a first planet gear 712, a first planet carrier 713, and first planet carrier teeth 714 disposed on an upper surface of the first planet carrier 713, and first planet carrier outer teeth 7131 are further disposed on an outer periphery of the first planet carrier 713, and the first fixed gear frame 711 is fixedly connected with the fixed gear frame 26 and the lower cover 27. The first fixed gear frame 711 is provided with a fixed gear frame body 7111, a fixed gear frame column 7112, a fixed gear frame mounting hole 7113, and fixed gear frame inner teeth 7114, the fixed bolts 28 are fixedly connected with the fixed gear frame 26 and the lower cover 27 through the fixed gear frame mounting hole 7113, the first planet 712 is meshed with the first driving gear 611 and realizes power transmission, and the first planet 712 revolves in the fixed gear frame inner teeth 7114 synchronously. The second transmission module includes a second planet gear 721, a second planet carrier 722, and second planet carrier teeth 723 provided on an upper surface of the second planet carrier 722. Wherein the second planet gears 721 mesh with the first planet carrier teeth 714 and effect power transfer. The third transmission module comprises a third planet wheel 731, a third planet carrier 732, wherein the third planet wheel 731 meshes with the second planet carrier teeth 723 and enables power transmission.

The clutch module comprises a shifting fork 81, a spring 82, a push rod 83 and a movable gear frame 84. The shifting fork 81 comprises a shifting fork body 811, a shifting fork column 812 and a shifting fork frame 813, the shifting fork column 812 is arranged on the outer side of the shifting fork body 811, the shifting fork frame 813 and the movable toothed frame 84 are arranged in a cavity formed by an upper cover and a lower cover, the shifting fork frame 813 is connected with the movable toothed frame 84 and can drive the movable toothed frame 84 to move up and down in the axial direction, and preferably, the number of the shifting fork 81 is two, and the two shifting fork frames are oppositely arranged on two sides of the movable toothed frame 84. One end of the spring 82 is abutted against the fixed gear frame column 7112, and the other end is abutted against the shifting fork 81 and the ejector rod 83, so that when the ejector rod 83 presses the spring 82, the spring 82 is pressed downwards and synchronously drives the shifting fork 81 to move downwards, and when the acting force of the ejector rod 83 disappears, the spring 82 reversely pushes the shifting fork 81 to reset. Preferably, the spring 82 and the push rod 83 pass through the fork column 812 to be movably connected with the fork. The inner side wall of the movable gear frame 84 is provided with movable inner teeth 841, and the inner teeth 841 can be meshed with the second planet gears 721 and the first planet carrier 713. The clutch module further comprises a movable positioning structure, the movable positioning structure comprises a movable gear frame fixing groove 842 arranged on the outer side wall of the movable gear frame 84, and a gear frame fixing rib 263 arranged on the inner side wall of the fixed gear frame 26, when the movable gear frame 84 moves upwards, the movable gear frame fixing groove 842 is spliced with the gear frame fixing rib 263, the movable gear frame 84 is limited in the whole body to prevent the movable gear frame 84 from rotating in the circumferential direction, at this time, the movable gear frame 84 forms an outer gear frame of the second planet gear 721, and the second planet gear 721 can revolve in the movable gear frame 84. When the movable frame 84 moves downward, the movable frame fixing groove 842 is separated from the frame fixing rib 263, and the movable frame 84 is simultaneously engaged with the second planet gears 721 and the first planet carrier 713, in this state, when the first planet carrier 713 rotates, the first planet carrier teeth 714 are engaged with the second planet gears 721, but the first planet carrier 713 and the second planet gears 721 are synchronously locked by the movable frame 84, so that the first planet carrier 713, the second planet gears 721 and the movable frame 84 form a synchronous movable assembly, and synchronously rotate along with the first planet carrier 713 and synchronously drive the second planet carrier to synchronously rotate, thereby enabling the second speed changing module to lose the speed changing function and only have the power transmission effect.

Teeth and tooth grooves which are mutually inserted and matched are further arranged between the shifting fork 81 and the movable tooth frame 84, preferably, the teeth are shifting fork teeth 814 arranged on the shifting fork 81, and the shifting fork teeth 814 are arranged on the lower side of the shifting fork body 811 and are in a bent L shape. The movable tooth socket 843 is disposed on the outer peripheral side of the movable tooth frame 84 and is matched with the shift fork tooth 814, and the movable tooth socket 843 is disposed annularly along the outer peripheral side of the movable tooth frame 84. The fork teeth 841 are inserted into the movable tooth slots 843. When the fork 81 moves in the axial direction, the movable gear frame 84 is pushed to move in the axial direction by the fork teeth 814 and the movable tooth slots 843. When the movable frame 84 reaches the engaged position, the shift fork teeth 814 are not circumferentially associated with the movable tooth slots 843, for example, when the movable frame 84 is simultaneously engaged with the second planet gears 721 and the first planet carrier 713, the movable frame 84 can rotate relative to the shift fork teeth 81 without being affected by the shift fork teeth 814 and the movable tooth slots 843.

The manner in which the speed change device and clutch device of the food processor of the present invention are implemented will be described in detail with reference to fig. 19-22. Preferably, the high-speed output shaft 61 is directly in power connection with the motor and is directly connected with the first connector 62, while the high speed of the motor is directly output by the first connector 62, and during operation, the first connector 62 continuously outputs high-speed operation.

Fig. 19 is a cross-sectional view showing a first variable speed state transmission structure of the food processor according to the present invention. In the first state, the high-speed output shaft 61 and the first driving gear 611 are directly driven by the motor, the first driving gear 611 drives the first planet gear 712 to rotate and revolve in the first fixed gear frame 711 synchronously, and the first planet gear 712 drives the first planet carrier 713 to rotate when revolving to realize first-stage deceleration; in the process that the first planet carrier teeth 714 rotate along with the first planet carrier 713, the second planet gears 721 are driven to rotate and revolve in the movable gear frame 84 synchronously, and the second planet gears 721 revolve to drive the second planet carrier 722 to rotate so as to realize second-stage speed reduction; the second planet carrier teeth 723 rotate along with the second planet carrier 722, so as to drive the third planet gears 731 to rotate and revolve in the fixed gear frame 26 synchronously, the third planet carrier 732 is driven to rotate when the third planet gears 731 revolve so as to realize third-stage speed reduction, and the third planet carrier 732 is connected with the second connector 63 and finally drives the stirring piece. Preferably, a bearing 733 is further disposed between the third carrier 732 and the upper cover 25. The advantage of this arrangement is that, compared with the first embodiment, the third speed changing module is further added, so that the speed reducing performance of the speed changing device can be further improved, and the speed reducing ratio of the speed changing device is higher; the reduction ratio of each stage of the change module can be reduced, the volume of each stage of the reduction simulation is reduced on the premise of unchanged total reduction ratio, the volumes of the integral speed change device and the clutch device, particularly the axial size, are reduced, the volume of the food processor is reduced, and the user satisfaction is improved.

Fig. 20, 21 and 22 are sectional views showing a second variable speed state transmission structure of the food processor according to the present invention. In the second state, the ejector rod 83 moves downward to press the spring 82 and drive the shift fork 81 to move downward, and the shift fork 81 drives the movable gear frame 84 to move downward, so that the second planet gears 721 and the first planet carrier 713 are simultaneously meshed with the movable inner teeth 841. Thus, when the motor drives the high-speed output shaft 61 to rotate, the first driving teeth 611 drive the first planet gears 712 to rotate and revolve synchronously in the first fixed gear frame 711, and when the first planet gears 712 revolve, the first planet carriers 713 are driven to rotate to realize first-stage deceleration; because the first planet carrier 713 and the second planet gears 721 are meshed with the movable internal teeth 841 at the same time, the first planet carrier 713, the second planet gears 721 and the movable gear frame 84 form a rotating assembly together, and the second planet carrier 722 is driven to rotate through the second planet gears 721, namely, the second speed changing module does not participate in speed reduction any more, and the output of the first speed changing module directly drives the third speed changing module; the second planet carrier teeth 723 rotate along with the second planet carrier 722, so as to drive the third planet gears 731 to rotate and synchronously revolve in the fixed gear frame 26, the third planet carrier 732 is driven to rotate to realize third-stage speed reduction when the third planet gears 731 revolve, and the third planet carrier 732 is connected with the second connector and finally drives the stirring piece to realize the same connector, so that the same connector has different rotation speed outputs under the single output rotation speed state of the motor. The advantages of this arrangement are that: compared with the first embodiment, the clutch structure is changed from a sun gear structure for adjusting the planetary gear teeth to a gear frame structure for adjusting the planetary gear teeth, and the sun gear structure adjusting scheme needs to change the central sun gear transmission position, so that each stage of speed changing modules needs to have a space with a center for changing the position of the sun gear.

The first and second embodiments employ two adjustment schemes to achieve the clutched shifting scheme.

Embodiment one: through changing the sun gear position of planetary gear train, through the input of direct change at each level train to can skip corresponding variable speed module, thereby can more directly realize different rotational speed outputs, structural adjustment is simple, and, in the front stage, the rotational speed is higher when the sun gear is adjusted generally, directly adjusts by the sun gear, the loss of avoiding high rotational speed that can be better, transmission efficiency is higher, and the adjustment is more nimble.

Embodiment two: the gear frame position of the planetary gear train is changed, so that a fixed assembly is formed between the upper planetary gear, the lower planetary gear, the planetary carrier and the gear frame, and accordingly the corresponding planetary gear, the planetary carrier and the gear frame are assembled into a rotating piece without a speed reduction function, and finally clutch speed change output is realized. The gear frame adjustment can be arranged on the periphery of the whole planetary gear system, is sleeved on the periphery of each stage of planetary gear system, can reduce the arrangement of corresponding adjusting components in the center of the planetary gear system, and can be provided with corresponding clutch modules according to the number of different planetary gear systems, so that various speed change combination states are realized.

It can be appreciated that the fixed gear frame is provided with a notch for the shifting fork to axially move; further, a sealing piece for shielding and closing the notch can be arranged at the notch.

It can be understood that the driving module for driving the ejector rod can be a driving motor, and the driving motor drives the screw rod to axially move and drives the ejector rod to axially move.

It is understood that the clutch device comprises a driving rod in threaded connection with the shifting fork, the driving rod drives the shifting fork to move up and down when rotating, and the driving rod is driven by a driving motor to rotate.

It can be understood that the speed changing device can be provided with only the first speed changing module and the second speed changing module, and the movable gear frame can be arranged on the periphery of the second planet wheel and the first planet carrier, so that the second speed changing module forms a fixed assembly without a speed reducing function, and further the clutch speed changing function is realized.

It will be appreciated that the drive module for driving the ram 82 may also extend directly into the host machine and rely on the user's own adjustment to autonomously set the desired output rotational speed depending on the user's environment of use.

It will be appreciated that a clutch may be provided between the high speed output shaft 61 and the first coupling 62, and that when a variable speed output is achieved, the high speed output shaft 61 is disconnected from the first coupling 62 and no longer continues to output at high speed.

It can be understood that the movable gear frame can also be arranged at the outer edges of the second planet carrier and the third planet gear to fix the second planet carrier and the third planet gear, so as to realize a third speed change state.

It can be appreciated that the movable gear frames can be arranged into two groups, and are respectively matched with the first planet gears, the second planet carrier, the second planet gears and the third planet carrier, so that the combination modes of second-stage speed reduction fixation, third-stage speed reduction fixation and second-stage and third-stage speed reduction fixation are realized, and the second output connector is provided with a plurality of groups of different output schemes.

It will be appreciated that the use of a planetary gear for the first and second transmission modules allows for a higher reduction ratio typically required for a food processor without requiring a particularly high torque output, and better meets the high reduction ratio requirements. Of course, the first speed changing module and the second speed changing module can be set to be of a conventional gear reduction structure, and gear combinations for changing the gear structures are set to realize speed changing clutch, which is also within the scope of protection of the present application and will not be described herein.

It will be appreciated that the first fixed frame 711 may be directly integrated with the lower cover 27, so that fixed frame internal teeth are directly provided on the lower cover 27, and the first planet gears may mesh with and revolve around the fixed frame internal teeth.

It can be appreciated that the first fixed gear frame may be integrally provided with the fixed gear frame, and the first planet gear and the third planet gear may be meshed with the inner teeth of the fixed gear frame, and the inner teeth meshed with the first planet gear and the third planet gear may be the same or different.

The foregoing description is only illustrative of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, i.e. all equivalent changes and modifications that may be made in accordance with the present invention are covered by the appended claims, which are not intended to be construed as limiting.

Claims

1. The utility model provides a multifunctional food processing machine, includes host computer, processing cup, motor, the motor set up in the host computer, be equipped with by motor drive's stirring piece in the processing cup, its characterized in that, food processing machine still includes speed change gear and clutch, speed change gear includes input, output and is located first speed change module and the second speed change module between input and the output, clutch includes drive module and power transmission module, drive module and power transmission module nest in order to make drive module with power transmission module overlaps in the axial, clutch is connected with speed change gear and drives the input and select power connection or break away from between first speed change module or second speed change module, so that the output different rotational speeds and drive stirring piece.

2. The food processor of claim 1, wherein the first and second speed changing modules are disposed in sequence in an axial direction, the driving module comprises a driving member and a driven member, the driving member is rotatably disposed to drive the driven member to move in the axial direction, so that the driving module drives the power transmission module to move in the axial direction to connect or disconnect the input end with the first speed changing module or the second speed changing module.

3. The food processor of claim 2, wherein the driving member and the driven member are respectively a nested outer frame and an inner frame, the outer frame is rotatably arranged and drives the inner frame to axially move, the power transmission module comprises a gear shifting head rotatably connected with the inner frame, the inner frame axially limits the gear shifting head to drive the gear shifting head to axially move, one end of the gear shifting head is in power connection with the input end, and the other end of the gear shifting head is in power connection with or disconnection from the first speed changing module or the second speed changing module when axially moving.

4. A food processor as claimed in claim 3, wherein the output comprises a first connector and a second connector, the first connector being in power connection with the gear shift head, the second connector being in power connection with a second gear shift module.

5. A food processor as claimed in claim 3, wherein the inner frame comprises a cabinet and a frame, the shift head being disposed on the frame, the shift head being rotatably coupled to the frame by a bearing.

6. The food processor of claim 3, wherein the driving module further comprises a driving motor, external teeth are arranged on the outer side wall of the outer frame, the driving motor drives the outer frame to rotate through the external teeth, the outer frame is connected with the inner frame through threads, and the inner frame is driven to move axially when the outer frame rotates.

7. The food processor of claim 2 wherein the driving member and the driven member have mating helical surfaces, the driving member being rotatably disposed and driving the driven member to move axially, the power transmission module including a shift head rotatably coupled to the driven member, the driven member axially spacing the shift head to drive the shift head to move axially, the shift head being in power connection with the input end at one end and in power connection with or disconnection from the first transmission module or the second transmission module at the other end when moving axially.

8. The food processor of claim 2, wherein the driving module includes a push rod and an elastic member, the power transmission module includes a shift frame, the push rod and the elastic member are connected with the shift frame and disposed outside the shift frame, and the push rod and the elastic member can push the shift frame to move in an axial direction to be in power connection with or disconnection from the first speed change module or the second speed change module.

9. The food processor of claim 1 wherein the output comprises a high speed output and a variable speed output, the high speed output being in direct power connection with the motor and the variable speed output being in power connection with the motor via the variable speed device.

10. The food processor of claim 1, wherein the first transmission module comprises a first planetary gear train, the second transmission module comprises a second planetary gear train, the first planetary gear train and the second planetary gear train are arranged in sequence along the axial direction, the first planetary gear train comprises a first planetary gear, a first planet carrier and a first planet frame, the second planetary gear train comprises a second planetary gear, a second planet carrier and a second planet frame, the clutch device comprises a gear shift head capable of moving along the axial direction, and the gear shift head can be connected with or disconnected from the first planetary gear train and the second planetary gear train respectively when moving along the axial direction so as to be connected with or disconnected from the first planetary gear train or the second planetary gear train in a power mode;

or, the first speed change module comprises a first planetary gear train, the second speed change module comprises a second planetary gear train, the first planetary gear train and the second planetary gear train are sequentially arranged along the axial direction, the first planetary gear train comprises a first planetary gear, a first planet carrier and a first planet frame, the second planetary gear train comprises a second planetary gear, a second planet carrier and a second planet frame, the clutch device comprises a movable gear frame, and the movable gear frame moves along the axial direction to form the first planetary frame of the first planetary gear train or the second planetary frame of the second planetary gear train or is positioned between the first planetary gear train and the second planetary gear train to simultaneously mesh the first planet carrier and the second planetary gear.