Rotary lifting integrated power device for compact food processor and food processor

Abstract

The application relates to a rotating and lifting integrated power device for a compact food processor, which comprises a brushless driving mechanism, a main shaft and a main shaft lifting mechanism, wherein the brushless driving mechanism comprises a stator support, a stator winding assembly and a rotor assembly; the upper end of the main shaft is located inside the hollow columnar part of the stator support and is connected with the main shaft lifting mechanism; the main shaft lifting mechanism comprises a speed reduction assembly connected with the end of the main shaft, an outer thread sliding sleeve connected with the output end of the speed reduction assembly and an inner thread screw rod sleeve fixedly installed on the upper part of the stator support, and the inner thread screw rod sleeve is connected with the outer thread sliding sleeve through threads; when the main shaft rotates, the outer thread sliding sleeve is driven to rotate through the speed reduction assembly, so that the outer thread sliding sleeve moves axially along the inner thread screw rod sleeve. In the application, the main shaft lifting mechanism is simplified in structure, smaller in volume and more compact in structure, so that the volume and cost of the power device can be greatly reduced.

Description

Technical Field

[0001] This invention belongs to the technical field of mechanical equipment, and particularly relates to the field of food processors, specifically a compact food processor with integrated rotary lifting power device and processor. Background Technology

[0002] Food processing machines such as ice cream makers and fruit puree makers typically use a high-speed rotating spindle to drive mixing rods or cutting blades to disperse and mix food at high speed. During high-speed mixing, the mixing components often need to rise and fall relative to the container to achieve thorough and even mixing. In existing technologies, the lifting action is usually achieved using a separate power device and transmission mechanism in addition to the rotational power. For example, another motor and transmission mechanism are installed on the side of the main unit to control the lifting and falling of the entire main unit, or to control the lifting and falling of the food processing container. While the structural principle of these food processors is relatively simple, they require two power mechanisms, resulting in a large overall size and high production costs, making them difficult to meet the needs of the home market.

[0003] Of course, some food processors use a single power unit to achieve rotation and lifting, but structurally the power output and the main shaft rotation are on different axes, making the structure more complex and requiring more installation space. As a result, existing food processors are large in size and expensive, making them unsuitable for home use. In addition, the assembly and disassembly of the spindle in the power unit of existing food processors is quite cumbersome, making it difficult to achieve quick spindle replacement. Summary of the Invention

[0004] The purpose of this invention is to address the above-mentioned problems by providing a compact integrated rotary lifting power device and food processor, which can solve the technical problems of complex power structure, high cost, large space occupation, and inability to quickly change shafts in the prior art.

[0005] This invention is achieved through the following technical solution: a compact food processor with integrated rotary and lifting power unit, comprising: a brushless drive mechanism, a main shaft, and a main shaft lifting mechanism, wherein: The brushless drive mechanism includes a stator support, a stator winding assembly, and a rotor assembly. The stator support has a hollow cylindrical portion, and the stator winding assembly is mounted on the periphery of the hollow cylindrical portion. The rotor assembly includes a rotor support and a magnetic ring mounted on the rotor support and located on the periphery of the stator winding assembly. An output shaft sleeve is also connected to the middle of the rotor support. The output shaft sleeve passes through the hollow cylindrical portion from below and is rotatably connected to the inner wall of the hollow cylindrical portion through an output shaft sleeve bearing and a first retaining ring. That is, the rotor support and magnetic ring of the rotor assembly rotate around the stator winding assembly as a whole through the output shaft sleeve and the output shaft sleeve bearing. The main shaft passes through the shaft hole of the output shaft sleeve, and the cross-section of the main shaft and the cross-section of the shaft hole are both non-circular sections. That is, the main shaft rotates synchronously with the output shaft sleeve and the rotor assembly, and the main shaft can move axially relative to the output shaft sleeve. The upper end of the main shaft is located inside the hollow columnar part of the stator support and is connected to the main shaft lifting mechanism; The spindle lifting mechanism includes a reduction assembly connected to the end of the spindle, an external threaded sleeve connected to the output end of the reduction assembly, and an internal threaded screw sleeve fixedly installed on the upper part of the stator support. The internal threaded screw sleeve and the external threaded sleeve are connected by threads. When the spindle rotates, it is decelerated by the reduction assembly and drives the external threaded sleeve to rotate, thereby causing the external threaded sleeve to move axially along the internal threaded screw sleeve.

[0006] The deceleration assembly is a cycloidal pinwheel type deceleration assembly, which includes a cylindrical pinwheel housing with openings at both ends, a pinwheel input shaft connected to the end of the main shaft, a first bearing pressure ring disposed at the lower end of the cylindrical pinwheel housing, a first bearing disposed between the first bearing pressure ring and the pinwheel input shaft, a first pinwheel plate drivenly connected to the output end of the pinwheel input shaft, a first pinwheel plate output shaft drivenly connected to the first pinwheel plate, a second bearing and a second bearing pressure ring disposed around the first pinwheel plate output shaft, a second pinwheel plate drivenly connected to the end of the first pinwheel plate output shaft, a second pinwheel plate drivenly connected to the second pinwheel plate output shaft, a second pinwheel plate output shaft drivenly connected to the second pinwheel plate, and a third bearing and a third bearing pressure ring disposed around the second pinwheel plate output shaft. The inner wall of the cylindrical needle wheel housing is provided with a cycloidal needle wheel internal gear, and the first needle wheel plate and the second needle wheel plate are respectively provided with cycloidal needle wheel external gears corresponding to the cycloidal needle wheel internal gear of the cylindrical needle wheel housing.

[0007] The input end of the needle wheel input shaft is a docking hole with at least one longitudinal section that connects to the end of the main shaft. The upper end of the corresponding main shaft also has at least one longitudinal section, so that the main shaft and the needle wheel input shaft rotate synchronously. The output end of the needle wheel input shaft is a cam coaxial with the main shaft. Correspondingly, the center of the first needle wheel plate is a first through hole that matches the output end of the needle wheel input shaft. The upper surface of the first needle wheel plate is provided with several protruding first pins. The bottom disk of the first needle wheel plate output shaft is provided with several first pin holes corresponding to the first pins. The upper end of the first needle wheel plate output shaft is also a cam. Correspondingly, the center of the second needle wheel plate is a second through hole corresponding to the first needle wheel plate output shaft. The upper surface of the second needle wheel plate is also provided with several protruding second pins. The bottom disk of the second needle wheel plate output shaft is provided with several second pin holes corresponding to the second pins. The upper end of the second needle wheel plate output shaft also has at least one longitudinal section and is provided with a snap ring groove to install a second snap ring, which connects with the center hole of the external threaded sleeve and moves synchronously, and is axially limited by the second snap ring.

[0008] The lower end of the needle wheel input shaft is a docking hole that connects with the main shaft; the middle section outer wall is a rotating column that connects with the first bearing, and the upper end is an output cam; the first needle wheel plate output shaft and the second needle wheel plate output shaft are both divided into three sections along the axial direction, namely the bottom disc, the middle rotating column, and the upper output end, and the outer periphery of the middle rotating column of the two are respectively connected to the second bearing and the third bearing; A quick shaft changing mechanism is provided on the periphery of the upper end of the main shaft and below the deceleration assembly. It includes a columnar support, a support bottom cover, a fourth bearing, a frustum ring, a radial locking block, a radial spring, a pressing rod, and a transmission rod. The columnar support has an internal accommodating space, and its upper end face is connected to the lower end of the first bearing pressure ring. The support bottom cover is connected to the bottom end face of the columnar support, and the fourth bearing is installed in the middle of the support bottom cover. The main shaft passes through the support bottom cover, the fourth bearing, the bottom surface of the columnar support, the frustum ring, and the transmission rod in sequence. The bottom surface of the columnar support is provided with a spindle through hole for the spindle to pass through, and a radial groove is also provided on the bottom surface of the columnar support. A pair of radially arranged radial blocks and a radial spring are installed in the radial groove. Correspondingly, an annular groove is provided on the side wall of the spindle opposite to the radial groove. The frustum ring is located inside the columnar support. The radial block is also provided with a pusher that extends upward through the bottom surface of the columnar support. The inner side of the pusher is also provided with a pusher surface that contacts the conical sidewall of the frustum ring. The transmission rod is located above the frustum ring. It has a transmission support foot that contacts the top of the frustum ring and a connecting top surface that is higher than the upper end of the main shaft. The pressing rod is fixedly connected to the connecting top surface of the transmission rod, and the upper end of the pressing rod is exposed on the upper end of the external threaded sleeve and the second needle wheel plate output shaft. That is, the center of the needle wheel input shaft, the first needle wheel plate output shaft and the second needle wheel plate output shaft are respectively provided with pressing rod through holes for the pressing rod to pass through. The cross-section of the main shaft and the cross-section of the shaft hole are both "D" shaped. The upper end of the internal threaded screw sleeve is fitted with a screw sleeve cover.

[0009] The present invention also provides a food processor, which includes the above-mentioned compact food processor with integrated rotary lifting power device.

[0010] This invention's integrated power unit utilizes a brushless drive mechanism with a reduction gear assembly mounted axially on the main shaft to achieve simultaneous high-speed rotation and low-speed lifting of the main shaft. The simplified structure of the main shaft lifting mechanism results in a smaller, more compact design, significantly reducing the size and cost of the power unit. This, in turn, greatly reduces the size and cost of the corresponding food processor, while improving portability and ease of use. Furthermore, this invention incorporates a quick-change shaft mechanism, allowing for rapid disassembly and separation of the main shaft and the main shaft lifting mechanism. This enables quick replacement of the main shaft or rapid removal of the main shaft lifting mechanism for use without lifting, offering greater flexibility and practicality. Attached Figure Description

[0011] Figure 1 This is an overall perspective view of the present invention; Figure 2 This is an overall sectional view of the present invention; Figure 3 yes Figure 2 A magnified view of a portion of the image; Figure 4 An exploded view of the entire invention; Figure 5 This is a partially exploded schematic diagram of the spindle lifting mechanism and the reduction assembly in this invention; Figure 6 This is a partially exploded view of the quick shaft changing mechanism in this invention; Detailed Implementation

[0012] The invention will be further illustrated below with reference to specific examples and accompanying drawings.

[0013] like Figures 1-6 As shown, the present invention describes a rotary lifting integrated power device for a compact food processor, which includes: a brushless drive mechanism 1, a main shaft 2, and a main shaft lifting mechanism 3. Specifically, such as Figures 2-4As shown, the brushless drive mechanism 1 includes a stator support 11, a stator winding assembly 12, and a rotor assembly 13. The stator support 11 has a hollow cylindrical portion 111, and the stator winding assembly 12 is mounted on the periphery of the hollow cylindrical portion 111. The rotor assembly 13 includes a rotor support 131 and a magnetic ring 132 mounted on the rotor support 131 and located on the periphery of the stator winding assembly 12. The magnetic ring 132 can be a single magnetic ring or a magnetic ring composed of multiple small magnets mounted on the inner wall of the rotor support 131. An output shaft sleeve 14 is also connected to the middle of the rotor support 131. The output shaft sleeve 14 passes through the hollow cylindrical portion 111 from below and... The output shaft sleeve bearing 15, the first snap ring 16, and the inner wall of the hollow columnar part 111 form a rotatable connection, that is, the rotor support 131 and the magnetic ring 132 of the rotor assembly 13 rotate around the stator winding assembly 12 through the output shaft sleeve 14 and the output shaft sleeve bearing 15; the main shaft 2 passes through the shaft hole 141 of the output shaft sleeve 14, and the cross-section of the main shaft 2 and the cross-section of the shaft hole 141 are both non-circular cross-sections. In this embodiment, the cross-section of the main shaft 2 and the cross-section of the shaft hole 141 are both "D" shaped cross-sections, that is, the main shaft 2 rotates synchronously with the output shaft sleeve 14 and the rotor assembly 13, and the main shaft 2 can move axially relative to the output shaft sleeve 14. The upper end of the main shaft 2 is located inside the hollow columnar part 111 of the stator support 11 and is connected to the main shaft lifting mechanism 3; The main spindle lifting mechanism 3 includes a reduction assembly 31 connected to the end of the main spindle 2, an external threaded sleeve 32 connected to the output end of the reduction assembly 31, and an internal threaded screw sleeve 33 fixedly installed on the upper part of the stator bracket 11. The internal threaded screw sleeve 33 and the external threaded sleeve 32 are connected by thread matching. When the main spindle 2 rotates, it is reduced by the reduction assembly 31 and drives the external threaded sleeve 32 to rotate, thereby causing the external threaded sleeve 32 to move axially along the internal threaded screw sleeve 33, thereby pulling the main spindle 2 to rise and fall axially. The upper end of the internal threaded screw sleeve 33 is equipped with a screw sleeve cover 331, which has a dustproof protection effect and can be opened to touch the internal pressing rod for quick shaft changing operation.

[0014] Furthermore, in combination Figure 2 , Figure 3 , Figure 4 , Figure 5As shown, the deceleration assembly 31 is a cycloidal pinwheel type deceleration assembly, which includes a cylindrical pinwheel housing 311 with openings at both ends, a pinwheel input shaft 312 connected to the end of the main shaft 2, a first bearing pressure ring 313 disposed at the lower end of the cylindrical pinwheel housing 311, a first bearing 3131 disposed between the first bearing pressure ring 313 and the pinwheel input shaft 312, a first pinwheel plate 314 drivenly connected to the output end of the pinwheel input shaft 312, a first pinwheel plate output shaft 315 drivenly connected to the first pinwheel plate 314, a second bearing 3161 and a second bearing pressure ring 316 disposed around the first pinwheel plate output shaft 315, a second pinwheel plate 317 drivenly connected to the end of the first pinwheel plate output shaft 315, a second pinwheel plate output shaft 318 drivenly connected to the second pinwheel plate 317, and a third bearing 3191 and a third bearing pressure ring 319 disposed around the second pinwheel plate output shaft 318. The outer walls of the second bearing pressure ring 316 and the third bearing pressure ring 319 are formed with external teeth that match the cycloidal pinwheel internal gear 3111 on the inner wall of the cylindrical pinwheel housing 311. They can be moved and installed longitudinally during assembly without rotating. The inner wall of the cylindrical needle wheel housing 311 is provided with a cycloidal needle wheel internal gear 3111. The first needle wheel plate 314 and the second needle wheel plate 317 are respectively provided with cycloidal needle wheel external gears 3141 (3171) corresponding to the cycloidal needle wheel internal gear 3111 of the cylindrical needle wheel housing 311. That is, when the main shaft 2 rotates, it drives the needle wheel input shaft 312 to rotate. The needle wheel input shaft 312 drives the first needle wheel plate 314 to rotate between the cycloidal needle wheel external gear and the cycloidal needle wheel internal gear 3111 inside the cylindrical needle wheel housing 311. With the cooperation of the first needle wheel plate 314, a first-stage reduction is achieved. Similarly, the first needle wheel plate 314 then drives the first needle wheel plate output shaft 315 and the second needle wheel plate 317 to rotate in sequence. The second needle wheel plate 317 and the cylindrical needle wheel housing 311 achieve a second-stage reduction, and finally drive the second needle wheel plate output shaft 318 to rotate. After the two-stage reduction, the second needle wheel plate output shaft 318 drives the external threaded sliding sleeve 32 to rotate at a low speed, thereby making it move axially along the internal threaded lead screw sleeve 33. The forward and reverse rotation of the main shaft 2 controls the lifting or lowering.

[0015] The lower end of the needle wheel input shaft 312 is a docking hole 3121 that connects with the main shaft 2; the middle section outer wall is a rotating column 3122 that connects with the first bearing 3131, and the upper end is an output cam 3123; the first needle wheel plate output shaft 315 and the second needle wheel plate output shaft 318 are structurally divided into three sections along the axial direction, namely the bottom disc 3151 (3181), the middle rotating column 3152 (3182), and the upper output end 3153 (3183), and the outer periphery of the middle rotating column of the two are respectively connected to the second bearing 3161 and the third bearing 3191; The inner wall of the input end docking hole 3121 of the needle wheel input shaft 312 has at least one longitudinal section that docks with the end of the main shaft 2. The upper end of the corresponding main shaft 2 also has at least one longitudinal section 201, so that the main shaft 2 and the needle wheel input shaft 312 rotate synchronously. The output end of the needle wheel input shaft 312 is a cam 3123 coaxial with the main shaft 2. Correspondingly, the center of the first needle wheel plate 314 is a first through hole 3142 that matches the output end of the needle wheel input shaft 312. The upper surface of the first needle wheel plate 314 is provided with several protrusions. The first pin 3143 is provided, and the bottom disc 3151 of the first needle wheel plate output shaft 315 has several first pin holes 31511 corresponding to the first pin 3143; the upper end of the first needle wheel plate output shaft 315 is also a cam. Correspondingly, the center of the second needle wheel plate 317 is a second through hole 3172 corresponding to the upper end of the first needle wheel plate output shaft 315. The upper end surface of the second needle wheel plate 317 also has several protruding second pins 3173. The bottom disc 3181 of the second needle wheel plate output shaft 318 has several protruding second pins 3173. Several second pin holes 31811 corresponding to the second pin 3173; the upper end of the second needle wheel plate output shaft 318 also has at least one longitudinal section and a snap ring groove 3184 for mounting a second snap ring 3185, which is connected to the center hole of the external threaded sleeve 32 for synchronous movement and is axially limited by the second snap ring 3185. In this embodiment, the shape of the center hole of the external threaded sleeve 32 corresponds to the shape of the output end of the second needle wheel plate output shaft 318, and is a non-circular shape with a longitudinal section, thereby realizing transmission; the needle wheel input shaft 312 The cam at the output end drives the first needle wheel plate 314 to rotate in a swing-type deceleration manner through the first through hole 3142, which in turn drives the first pin shaft 3143 to move with the first needle wheel plate 314, and then drives the first needle wheel plate output shaft 315 above it to rotate. Similarly, the first needle wheel plate output shaft 315 drives the second needle wheel plate 317 to rotate in a swing-type deceleration manner, which in turn drives the second needle wheel plate output shaft 318 to rotate through the second pin shaft 3173 above it. The second needle wheel plate output shaft 318 drives the external threaded sleeve 32 connected to it to rotate at a low speed. Combination Figure 2 , Figure 3 , Figure 4 , Figure 6As shown, a quick shaft changing mechanism 4 is also provided on the outer periphery of the upper end of the main shaft 2 and below the deceleration assembly 31. It includes a columnar bracket 41, a bracket bottom cover 42, a fourth bearing 43, a frustum ring 44, a radial locking block 45, a radial spring 46, a pressing rod 47, and a transmission rod 48. The columnar bracket 41 has an internal accommodating space 410, and its upper end face is connected to the lower end of the first bearing pressure ring 313. The bracket bottom cover 42 is connected to the bottom end face of the columnar bracket 41, and the fourth bearing 43 is installed in the middle of the bracket bottom cover 42. The main shaft 2 passes through the bracket bottom cover 42, the fourth bearing 43, the bottom surface of the columnar bracket 41, the frustum ring 44, and the transmission rod 48 in sequence. A gasket 431 is also provided between the upper part of the fourth bearing 43 and the bottom surface of the main shaft bracket 41. The bottom surface of the column bracket 41 is provided with a spindle through hole 411 for the spindle 2 to pass through, and the bottom surface of the column bracket 41 is also provided with a radial groove 412. A pair of radial blocks 45 and radial springs 46 arranged opposite to each other are installed in the radial groove 412. Correspondingly, an annular groove 202 is provided on the side wall of the spindle 2 opposite to the radial groove 412. The frustum ring 44 is located inside the columnar support 41. The radial block 45 is also provided with a push top 451 that extends upward through the bottom surface of the columnar support. The inner side of the push top 451 is also provided with a push top surface 452 that contacts the conical sidewall of the frustum ring 44. The transmission rod 48 is located above the frustum ring 44. It has a transmission support leg 481 that contacts the top of the frustum ring 44 and a connecting top surface 482 that is higher than the upper end of the main shaft 2. The pressing rod 47 is fixedly connected to the connecting top surface 482 of the transmission rod 48. The upper end of the pressing rod 47 is exposed at the upper end of the external threaded sleeve 32 and the second needle wheel plate output shaft 318. That is, the center of the needle wheel input shaft 312, the first needle wheel plate output shaft 315, and the second needle wheel plate output shaft 318 are respectively provided with pressing rod through holes for the pressing rod 47 to pass through. When the spindle 2 is inserted into the spindle through hole 411 on the bottom surface of the column bracket 41, its upper end is connected to the pinwheel input shaft 312. The radial locking block 45 is locked into the annular groove 202 on the side wall of the spindle 2 under the action of the spring, thereby completing the axial limit of the spindle 2. That is, the spindle 2 can be raised or lowered through the quick shaft changing mechanism 4. When the spindle 2 needs to be replaced, the screw sleeve cover 331 of the internal thread screw sleeve 33 can be opened. The internal pressing rod 47 can be pressed with a screwdriver or chopsticks to drive the transmission rod 48 to lower the frustum ring 44. Under the action of the outer conical surface and the pushing surface 452 on the radial locking block 45, the radial locking block 45 moves outward along the radial slide groove 412, thereby disengaging the radial locking block 45 from the annular groove 202 of the spindle 2. The spindle 2 can then be removed. Then another spindle 2 can be inserted from below and the radial locking block 45 can be locked again under the action of the radial spring 46. Without the quick-change shaft mechanism 4, the upper end of the main shaft 2 and the pin wheel input shaft 312 can be fixedly connected to achieve synchronous rotation and lifting; however, it is not convenient to replace the main shaft 2. The present invention also provides a food processor, including the above-mentioned compact food processor rotary lifting integrated power device, with different blades (not shown in the figure) installed at the lower end of the main shaft 2 as needed; the stator bracket 11 is also provided with several mounting lugs radially outward for assembly with the main frame or outer shell of the food processor.

[0016] This invention's integrated power unit utilizes a brushless drive mechanism with a reduction gear assembly mounted axially on the main shaft to achieve simultaneous high-speed rotation and low-speed lifting of the main shaft. The simplified structure of the main shaft lifting mechanism results in a smaller, more compact design, significantly reducing the size and cost of the power unit. This, in turn, greatly reduces the size and cost of the corresponding food processor, while improving portability and ease of use. Furthermore, this invention incorporates a quick-change shaft mechanism, allowing for rapid disassembly and separation of the main shaft and the main shaft lifting mechanism. This enables quick replacement of the main shaft or rapid removal of the main shaft lifting mechanism for use without lifting, offering greater flexibility and practicality.

[0017] The above embodiments are merely preferred embodiments of the present invention and are used only to explain the present invention, not to limit the present invention. Any changes, substitutions, combinations, simplifications, modifications, etc., made by those skilled in the art without departing from the spirit and principle of the present invention shall be considered equivalent substitutions and shall be included within the protection scope of the present invention.

Claims

1. A rotary lifting integrated power unit for a compact food processor, characterized in that: This integrated power unit includes: a brushless drive mechanism, a spindle, and a spindle lifting mechanism, wherein: The brushless drive mechanism includes a stator support, a stator winding assembly, and a rotor assembly. The stator support has a hollow cylindrical portion, and the stator winding assembly is mounted on the periphery of the hollow cylindrical portion. The rotor assembly includes a rotor support and a magnetic ring mounted on the rotor support and located on the periphery of the stator winding assembly. An output shaft sleeve is also connected to the middle of the rotor support. The output shaft sleeve passes through the hollow cylindrical portion from below and is rotatably connected to the inner wall of the hollow cylindrical portion through an output shaft sleeve bearing and a first retaining ring. The main shaft passes through the shaft hole of the output shaft sleeve, and the cross-section of the main shaft and the cross-section of the shaft hole are both non-circular sections. That is, the main shaft rotates synchronously with the output shaft sleeve and the rotor assembly, and the main shaft can move axially relative to the output shaft sleeve. The upper end of the main shaft is located inside the hollow columnar part of the stator support and is connected to the main shaft lifting mechanism; The main spindle lifting mechanism includes a reduction assembly connected to the end of the main spindle, an external threaded sleeve connected to the output end of the reduction assembly, and an internal threaded screw sleeve fixedly installed on the upper part of the stator support. The internal threaded screw sleeve and the external threaded sleeve are connected by threads. When the main spindle rotates, it is decelerated by the reduction assembly and drives the external threaded sleeve to rotate, so that the external threaded sleeve moves axially along the internal threaded screw sleeve.

2. The integrated rotary lifting power device for a compact food processor according to claim 1, characterized in that: The deceleration assembly is a cycloidal pinwheel type deceleration assembly, which includes a cylindrical pinwheel housing with openings at both ends, a pinwheel input shaft connected to the end of the main shaft, a first bearing pressure ring disposed at the lower end of the cylindrical pinwheel housing, a first bearing disposed between the first bearing pressure ring and the pinwheel input shaft, a first pinwheel plate drivenly connected to the output end of the pinwheel input shaft, a first pinwheel plate output shaft drivenly connected to the first pinwheel plate, a second bearing and a second bearing pressure ring disposed around the first pinwheel plate output shaft, a second pinwheel plate drivenly connected to the end of the first pinwheel plate output shaft, a second pinwheel plate drivenly connected to the second pinwheel plate output shaft, a second pinwheel plate output shaft drivenly connected to the second pinwheel plate, and a third bearing and a third bearing pressure ring disposed around the second pinwheel plate output shaft. The inner wall of the cylindrical needle wheel housing is provided with a cycloidal needle wheel internal gear, and the first needle wheel plate and the second needle wheel plate are respectively provided with cycloidal needle wheel external gears corresponding to the cycloidal needle wheel internal gear of the cylindrical needle wheel housing.

3. The integrated rotary lifting power device for a compact food processor according to claim 2, characterized in that: The input end of the needle wheel input shaft is a docking hole with at least one longitudinal section that connects to the end of the main shaft. The upper end of the corresponding main shaft also has at least one longitudinal section, so that the main shaft and the needle wheel input shaft rotate synchronously. The output end of the needle wheel input shaft is a cam coaxial with the main shaft. Correspondingly, the center of the first needle wheel plate is a first through hole that matches the output end of the needle wheel input shaft. The upper surface of the first needle wheel plate is provided with several protruding first pins. The bottom disk of the first needle wheel plate output shaft is provided with several first pin holes corresponding to the first pins. The upper end of the first needle wheel plate output shaft is also a cam. Correspondingly, the center of the second needle wheel plate is a second through hole corresponding to the first needle wheel plate output shaft. The upper surface of the second needle wheel plate is also provided with several protruding second pins. The bottom disk of the second needle wheel plate output shaft is provided with several second pin holes corresponding to the second pins. The upper end of the second needle wheel plate output shaft also has at least one longitudinal section and is provided with a snap ring groove to install a second snap ring, which connects with the center hole of the external threaded sleeve and moves synchronously, and is axially limited by the second snap ring.

4. The integrated rotary lifting power device for a compact food processor according to claim 3, characterized in that: The lower end of the needle wheel input shaft is a docking hole that connects with the main shaft; the middle section outer wall is a rotating column that connects with the first bearing, and the upper end is an output cam; the first needle wheel plate output shaft and the second needle wheel plate output shaft are both divided into three sections along the axial direction, namely the bottom disc, the middle rotating column, and the upper output end, and the outer periphery of the middle rotating column of the two are respectively connected to the second bearing and the third bearing.

5. The integrated rotary lifting power device for a compact food processor according to claim 2 or 3, characterized in that: A quick shaft changing mechanism is provided on the periphery of the upper end of the main shaft and below the deceleration assembly. It includes a columnar support, a support bottom cover, a fourth bearing, a frustum ring, a radial locking block, a radial spring, a pressing rod, and a transmission rod. The columnar support has an internal accommodating space, and its upper end face is connected to the lower end of the first bearing pressure ring. The support bottom cover is connected to the bottom end face of the columnar support, and the fourth bearing is installed in the middle of the support bottom cover. The main shaft passes through the support bottom cover, the fourth bearing, the bottom surface of the columnar support, the frustum ring, and the transmission rod in sequence. The bottom surface of the columnar support is provided with a spindle through hole for the spindle to pass through, and a radial groove is also provided on the bottom surface of the columnar support. A pair of radially arranged radial blocks and a radial spring are installed in the radial groove. Correspondingly, an annular groove is provided on the side wall of the spindle opposite to the radial groove. The frustum ring is located inside the columnar support. The radial block is also provided with a pusher that extends upward through the bottom surface of the columnar support. The inner side of the pusher is also provided with a pusher surface that contacts the conical sidewall of the frustum ring. The transmission rod is located above the frustum ring. It has a transmission support foot that contacts the top of the frustum ring and a connecting top surface that is higher than the upper end of the main shaft. The pressing rod is fixedly connected to the connecting top surface of the transmission rod, and the upper end of the pressing rod is exposed on the upper end of the external threaded sleeve and the second needle wheel plate output shaft. That is, the center of the needle wheel input shaft, the first needle wheel plate output shaft, and the second needle wheel plate output shaft are respectively provided with pressing rod through holes for the pressing rod to pass through.

6. The integrated rotary lifting power device for a compact food processor according to claim 1, characterized in that: The cross-section of the main shaft and the cross-section of the shaft hole are both "D" shaped.

7. The integrated rotary lifting power device for a compact food processor according to claim 1, characterized in that: The upper end of the internal threaded screw sleeve is fitted with a screw sleeve cover.

8. A food processor comprising a rotary lifting integrated power unit for a compact food processor as described in any one of the preceding claims.

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