Goat milk powder vacuum freeze drying device with intelligent temperature control function

Abstract

The invention discloses a goat milk powder vacuum freeze-drying device with an intelligent temperature control function, and relates to the technical field of vacuum freeze-drying, the goat milk powder vacuum freeze-drying device comprises a vacuum tank, a sliding cover, a temperature control assembly and a plurality of stirring assemblies, the temperature control assembly and the plurality of stirring assemblies are arranged in the vacuum tank, the sliding cover is arranged on one side of the vacuum tank, and the stirring assemblies are arranged on the other side of the vacuum tank. The sliding cover seals one end of the vacuum tank, a pair of stand columns is arranged at the end, close to the sliding cover, of the vacuum tank, an opening and closing assembly is installed on the stand columns, the opening and closing assembly, the temperature control assembly and the stirring assemblies are all connected with a control system circuit, and the temperature control assembly controls the temperature in the vacuum tank. A milk pot is arranged below each stirring assembly, the stirring assemblies stir concentrated goat milk, the outer sleeve rotates and revolves at the same time, the stirring plates slowly stir the concentrated goat milk in the milk pots, the cooling temperature of the goat milk is uniform in the freezing process, and the cooling speed of the goat milk is increased.

Description

Technical Field

[0001] The invention relates to the technical field of vacuum freeze-drying, and in particular to a goat milk powder vacuum freeze-drying device with an intelligent temperature control function. Background Art

[0002] Vacuum freeze dryer, also known as freeze dryer, works by converting the moisture in the material directly from solid ice into gaseous water vapor through low-temperature freezing and sublimation in a vacuum environment, thereby achieving dehydration and drying. This technology can retain the physical structure, nutrients or biological activity of the material to the greatest extent, and is widely used in food, medicine, biological products and other fields. In the process of freeze-drying goat milk powder, since the liquid material is freeze-dried, the temperature in the milk pot needs to drop unevenly during the process, and it often requires a long time of freezing, which greatly reduces the freezing rate. The general stirring mechanism will freeze and stick when stirring the gradually solidified material, and is generally not suitable for goat milk freeze-drying processing. Summary of the Invention

[0003] The object of the present invention is to provide a goat milk powder vacuum freeze-drying device with an intelligent temperature control function to solve the problems raised in the prior art.

[0004] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a goat milk powder vacuum freeze-drying device with intelligent temperature control function includes a vacuum tank, a sliding cover, a temperature control component and several stirring components, the temperature control component and the several stirring components are arranged inside the vacuum tank, the sliding cover is arranged on one side of the vacuum tank, the sliding cover seals one end of the vacuum tank, a pair of columns are provided at one end of the vacuum tank close to the sliding cover, an opening and closing component is installed on the pair of columns, the opening and closing component, the temperature control component and the several stirring components are all connected to the control system circuit, the temperature control component controls the temperature in the vacuum tank, a milk pot is provided under each stirring component, concentrated goat milk is contained in the milk pot, and the stirring component stirs the concentrated goat milk.

[0005] Furthermore, a threaded hole is provided at both the upper and lower ends of the sliding cover, and a circular groove is provided on the side of the sliding cover close to the vacuum tank. A movable sealing plate is slidingly provided in the circular groove, and an electromagnetic spring is provided between the movable sealing plate and the sliding cover. The electromagnetic spring is connected to the control system through an electric circuit. A sealing rubber ring is provided on the side of the movable sealing plate close to the vacuum tank. The operator injects concentrated goat milk into the milk pot and uses a trolley to push the milk pot into the interior of the vacuum tank. The control system drives the first servo motor to work, and the first servo motor moves the sliding cover to close the vacuum tank.

[0006] Furthermore, the opening and closing assembly includes a pair of screws, a chain and a first servo motor. The pair of screws are connected between the two columns, and the pair of screws are respectively matched with the two threaded holes on the sliding cover. A sprocket is installed at one end of each screw, and the chain is connected to the two sprockets. The first servo motor is coaxially connected to the sprocket at the bottom. The first servo motor drives the sprocket at the bottom to rotate, and the sprocket at the bottom drives another sprocket to rotate through the chain. The two screws rotate synchronously and drive the sliding cover to move through the spiral transmission. The sliding cover moves to one side of the vacuum tank to close its entrance. The electromagnetic spring is first energized and contracted to pull the movable sealing plate into the circular groove. After the sliding cover moves into place, the electromagnetic spring is de-energized to push the movable sealing plate out of the circular groove. The sealing rubber ring contacts the entrance of the vacuum tank to seal the vacuum tank.

[0007] Furthermore, there is a conical protrusion in the middle of the milk pan, and a magnet is provided at the bottom of the milk pan. A slide rail and the same number of electromagnets as the milk pan are provided at the bottom of the vacuum tank. The electromagnets attract the magnets at the bottom of the milk pan, and the milk pan is pushed into the vacuum tank through the slide rail. There are several points inside the vacuum tank for positioning the milk pan. The electromagnets from the inside to the outside of the vacuum tank are energized in sequence to absorb the milk pan pushed into the tank, so as to ensure that the milk pan will not be displaced or shaken during the stirring process, thereby stabilizing the milk pan and providing support for the stirring process.

[0008] Furthermore, each group of the stirring assembly includes a machine cover, an outer ring gear, a center gear, a second servo motor, a planetary ring gear and an outer sleeve. The machine cover is installed above the inside of the vacuum tank, the machine cover is inverted, the outer ring gear is installed at the bottom of the machine cover, the second servo motor is inverted inside the machine cover, the center gear is installed on the second servo motor, the center gear is located in the middle of the machine cover, the planetary ring gear is sleeved on the outside of the outer sleeve, the planetary ring gear is located between the outer ring gear and the center gear, the second servo motor drives the center gear to rotate, the outer ring gear is fixed, and the planetary ring gear rotates while rotating around the center gear, that is, the outer sleeve and the planetary ring gear rotate and move synchronously.

[0009] Furthermore, the upper and lower ends of the outer ring gear and the center gear are provided with ribs, which block and limit the planetary ring gear. The planetary ring gear is meshed with the outer ring gear and the center gear. Two through grooves are opened on the top of the outer sleeve, and two tooth grooves arranged symmetrically along the axial direction are opened on the inner wall of the outer sleeve.

[0010] Furthermore, each group of the stirring components includes a middle sleeve and a lower column. The middle sleeve is slidably installed in the outer sleeve, and the lower column is slidably installed in the middle sleeve. A pair of racks are symmetrically arranged on the top of the lower column. A pair of differential gears are rotatably installed on the top of the middle sleeve. The pair of differential gears are symmetrically installed. A small motor is provided on one side of each differential gear. The small motor is provided in the middle sleeve. Both sides of each differential gear are meshed with the tooth groove and the rack. The two small motors drive the two gears at the same time. The differential gear rotates and rolls along the tooth grooves on the outer sleeve, causing the middle sleeve to slide out of the outer sleeve. At the same time, the differential gear pushes the rack to move, causing the lower column to slide out of the middle sleeve. Therefore, the outer sleeve, the middle sleeve and the lower column form a two-level telescopic structure. The lower column is extended into the milk pot to open the paddle. The outer sleeve rotates while revolving. The paddle slowly stirs the concentrated goat milk in the milk pot, evenly lowering the temperature of the goat milk during the freezing process, accelerating the cooling rate of the goat milk, and achieving the effect of improving the freezing efficiency.

[0011] Furthermore, a third servo motor is provided inside the downward column, and a driving bevel gear is installed on the motor shaft of the third servo motor. Both sides of the downward column are rotatably connected with a paddle, and a pair of the paddles are symmetrically installed on both sides of the downward column. Each paddle is further connected to a driven bevel gear at the junction of the paddle and the downward column, and a pair of the driven bevel gears are meshed with the driving bevel gear. When the third servo motor is energized, the driving bevel gear rotates, and the driving bevel gear drives the two driven bevel gears to rotate in opposite directions at the same speed. The pair of paddles are unfolded in opposite directions, and the paddles stir the goat milk. The third servo motor The paddle is driven to rotate during the stirring process, and the paddle fits tightly against the sliding column. The goat milk attached to the inside can be scraped off by the sliding column with each rotation of the paddle. After the freezing is completed, the paddle is retracted, and the secondary telescopic structure formed by the outer sleeve, the middle sleeve and the sliding column is also retracted in turn. Due to the sliding seal between the middle sleeve and the sliding column, the paddle uses the middle sleeve to scrape off the goat milk attached to the outside. Except for the bottom of the sliding column which needs to be cleaned at the end, the other stirring structure parts can scrape off the goat milk, which prevents the goat milk from sticking and facilitates equipment cleaning.

[0012] Compared with the prior art, the present invention has the following beneficial effects: The outer sleeve rotates while revolving, and the paddle slowly stirs the concentrated goat milk in the milk pot, evenly lowering the temperature of the goat milk during the freezing process, accelerating the cooling rate of the goat milk, and achieving the effect of improving freezing efficiency; the paddle fits tightly against the sliding column, and the paddle can use the sliding column to scrape off the goat milk attached to the inside with each rotation of the paddle, and use the middle sleeve to scrape off the goat milk attached to the outside. Except for the bottom of the sliding column which needs to be cleaned at the end, the other stirring structure parts can scrape off the goat milk, which prevents the goat milk from sticking and facilitates equipment cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The overall appearance structure of the present invention is shown in FIG. Figure 1 ; Figure 2 The overall appearance structure of the present invention is shown in FIG. Figure 2 ; Figure 3 The structure of the stirring assembly of the present invention is schematically shown Figure 1 ; Figure 4 The structure of the stirring assembly of the present invention is schematically shown Figure 2 ; Figure 5 The structure of the stirring assembly of the present invention is shown as follows Figure 3 ; Figure 6 The structure of the stirring assembly of the present invention is schematically shown Figure 4 ; Figure 7 The structure of the stirring assembly of the present invention is shown as follows Figure 5 .

[0014] In the figure: 1. Vacuum tank; 2. Sliding cover; 3. Movable sealing plate; 4. Screw; 5. Sprocket; 6. Chain; 7. First servo motor; 8. Milk pan; 9. Machine cover; 10. Outer ring gear; 11. Center gear; 12. Second servo motor; 13. Planetary ring gear; 14. Outer sleeve; 15. Middle sleeve; 16. Differential gear; 17. Rack; 18. Lower slide column; 19. Third servo motor; 20. Driving bevel gear; 21. Driven bevel gear; 22. Shift plate. DETAILED DESCRIPTION

[0015] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0016] Example: Figure 1-Figure 7As shown, the present invention provides a technical solution, a goat milk powder vacuum freeze drying device with intelligent temperature control function includes a vacuum tank 1, a sliding cover 2, a temperature control component and several stirring components, the temperature control component and the several stirring components are arranged inside the vacuum tank 1, the sliding cover 2 is arranged on one side of the vacuum tank 1, the sliding cover 2 seals one end of the vacuum tank 1, the vacuum tank 1 is provided with a pair of columns at one end close to the sliding cover 2, an opening and closing component is installed on the pair of columns, the opening and closing component, the temperature control component and the several stirring components are all connected to the control system circuit, the temperature control component controls the temperature in the vacuum tank 1, and a milk pot 8 is provided under each stirring component. The milk pot 8 is filled with concentrated goat milk, and the stirring component stirs the concentrated goat milk. There is a conical protrusion in the middle of the milk pot 8, and a magnet is provided at the bottom of the milk pot 8. A slide rail and the same number of electromagnets as the milk pot 8 are provided at the bottom of the vacuum tank 1. The electromagnet attracts the magnet at the bottom of the milk pot 8, and the milk pot 8 is pushed into the vacuum tank 1 through the slide rail. There are several points for positioning the milk pot 8 inside the vacuum tank 1. The electromagnets of the vacuum tank 1 are energized from the inside to the outside in turn to absorb the milk pot 8 pushed into the tank to ensure that the milk pot 8 will not be displaced or shaken during the stirring process, thereby stabilizing the milk pot 8 and providing support for the stirring process.

[0017] A threaded hole is provided at both ends of the sliding cover 2. A circular groove is provided on the side of the sliding cover 2 close to the vacuum tank 1. A movable sealing plate 3 is slidingly provided in the circular groove. An electromagnetic spring is provided between the movable sealing plate 3 and the sliding cover 2. The electromagnetic spring is connected to the control system through a circuit. A sealing rubber ring is provided on the side of the movable sealing plate 3 close to the vacuum tank 1. The opening and closing assembly includes a pair of screws 4, a chain 6 and a first servo motor 7. A pair of screws 4 is transferred between the two columns. A pair of screws 4 are respectively matched with the two threaded holes on the sliding cover 2. A sprocket 5 is installed at one end of each screw 4. The chain 6 is connected to the two sprockets 5. The first servo motor 7 is coaxially connected to the sprocket 5 at the bottom. The operator The concentrated goat milk is poured into the milk pot 8, and the milk pot 8 is pushed into the vacuum tank 1 by a trolley. The control system drives the first servo motor 7 to work, and the first servo motor 7 moves the slide cover 2 to close the vacuum tank 1. The first servo motor 7 drives the sprocket 5 at the bottom to rotate, and the sprocket 5 at the bottom drives another sprocket 5 to rotate through the chain 6. The two screws 4 rotate synchronously, and the slide cover 2 is driven to move through the spiral transmission. The slide cover 2 moves to one side of the vacuum tank 1 to close its entrance. The electromagnetic spring is first energized and contracted to pull the movable sealing plate 3 into the circular groove. After the slide cover 2 moves into place, the electromagnetic spring is de-energized, and the movable sealing plate 3 is pushed out of the circular groove. The sealing rubber ring contacts the entrance of the vacuum tank 1 to seal the vacuum tank 1.

[0018] Each stirring assembly includes a machine cover 9, an outer ring gear 10, a central gear 11, a second servo motor 12, a planetary gear ring 13 and an outer sleeve 14. The machine cover 9 is installed above the inside of the vacuum tank 1, the machine cover 9 is set upside down, the outer ring gear 10 is installed at the bottom of the machine cover 9, the second servo motor 12 is installed upside down inside the machine cover 9, the central gear 11 is installed on the second servo motor 12, the central gear 11 is located in the middle of the machine cover 9, the planetary gear ring 13 is sleeved on the outside of the outer sleeve 14, the planetary gear ring 13 is located between the outer ring gear 10 and the central gear 11, and the upper and lower ends of the outer ring gear 10 and the central gear 11 are provided with ribs, which block and limit the planetary gear ring 13, and the planetary gear ring 13 and the outer ring gear 10 are provided with ribs. The ring gear 10 and the center gear 11 are meshed with each other, and two through grooves are provided on the top of the outer sleeve 14. Two tooth grooves arranged along the axial direction are symmetrically provided on the inner wall of the outer sleeve 14. Each stirring assembly includes a middle sleeve 15 and a lower sliding column 18. The middle sleeve 15 is slidably installed in the outer sleeve 14, and the lower sliding column 18 is slidably installed in the middle sleeve 15. A pair of racks 17 are symmetrically arranged on the top of the lower sliding column 18, and a pair of differential gears 16 are rotatably installed on the top of the middle sleeve 15. The pair of differential gears 16 are symmetrically installed, and a small motor is provided on one side of each differential gear 16. The small motor is provided in the middle sleeve 15, and both sides of each differential gear 16 are meshed with the tooth grooves and the rack 17.

[0019] The second servo motor 12 drives the central gear 11 to rotate, the outer ring gear 10 is fixed, and the planetary ring gear 13 rotates while rotating around the central gear 11, that is, the outer sleeve 14 rotates and moves synchronously with the planetary ring gear 13, and the two small motors simultaneously drive the two differential gears 16 to rotate. The differential gear 16 rolls along the tooth grooves on the outer sleeve 14, causing the middle sleeve 15 to slide out of the outer sleeve 14. At the same time, the differential gear 16 pushes the rack 17 to move, causing the lowering column 18 to slide out of the middle sleeve 15. Therefore, the outer sleeve 14, the middle sleeve 15 and the lowering column 18 form a two-level telescopic structure. The lowering column 18 extends into the milk pot 8 to open the dial 22. The outer sleeve 14 rotates while revolving. The dial 22 slowly stirs the concentrated goat milk in the milk pot 8, evenly distributes the temperature drop of the goat milk during the freezing process, accelerates the cooling rate of the goat milk, and achieves the effect of improving the freezing efficiency.

[0020] A third servo motor 19 is provided inside the sliding column 18, and a driving bevel gear 20 is installed on the motor shaft of the third servo motor 19. Both sides of the sliding column 18 are rotatably connected with a dial plate 22. A pair of dial plates 22 are symmetrically installed on both sides of the sliding column 18. Each dial plate 22 is also connected to a driven bevel gear 21 at the junction of the sliding column 18. A pair of driven bevel gears 21 are meshed with the driving bevel gear 20. The third servo motor 19 is energized to drive the driving bevel gear 20 to rotate, and the driving bevel gear 20 drives the two driven bevel gears 21 to rotate in opposite directions at the same speed. A pair of dial plates 22 are unfolded in opposite directions, and the dial plates 22 stir the goat milk. The third servo motor 19 drives The movable paddle 22 rotates during the stirring process, and the paddle 22 fits tightly against the sliding column 18. Every time the paddle 22 rotates one circle, the goat milk attached to the inside can be scraped off by using the sliding column 18. After the freezing is completed, the paddle 22 is retracted, and the secondary telescopic structure formed by the outer sleeve 14, the middle sleeve 15 and the sliding column 18 is also retracted in turn. Due to the sliding seal between the middle sleeve 15 and the sliding column 18, the paddle 22 uses the middle sleeve 15 to scrape off the goat milk attached to the outside. Except for the bottom of the sliding column 18 which needs to be cleaned at the end, the other stirring structure parts can scrape off the goat milk, thereby preventing the goat milk from sticking and facilitating equipment cleaning.

[0021] The working principle of the present invention is as follows: the milk pan 8 is pushed into the vacuum tank 1 through a slide rail. There are several points inside the vacuum tank 1 for positioning the milk pan 8. The electromagnets of the vacuum tank 1 are energized from the inside to the outside in sequence, which absorb the milk pan 8 pushed into the tank to ensure that the milk pan 8 will not be displaced or shaken during the stirring process, thereby stabilizing the milk pan 8 and providing support for the stirring process.

[0022] The operator injects concentrated goat milk into the milk pot 8, and uses a trolley to push the milk pot 8 into the interior of the vacuum tank 1. The control system drives the first servo motor 7 to work, and the first servo motor 7 moves the slide cover 2 to close the vacuum tank 1. The first servo motor 7 drives the bottom sprocket 5 to rotate, and the bottom sprocket 5 drives another sprocket 5 to rotate through the chain 6. The two screws 4 rotate synchronously, and the slide cover 2 is driven to move through the spiral transmission. The slide cover 2 moves to one side of the vacuum tank 1 to close its entrance. The electromagnetic spring is first energized and contracted to pull the movable sealing plate 3 into the circular groove. After the slide cover 2 moves into place, the electromagnetic spring is de-energized, and the movable sealing plate 3 is pushed out of the circular groove. The sealing rubber ring contacts the entrance of the vacuum tank 1 to seal the vacuum tank 1.

[0023] The second servo motor 12 drives the central gear 11 to rotate, the outer ring gear 10 is fixed, and the planetary ring gear 13 rotates while rotating around the central gear 11, that is, the outer sleeve 14 rotates and moves synchronously with the planetary ring gear 13, and the two small motors simultaneously drive the two differential gears 16 to rotate. The differential gear 16 rolls along the tooth grooves on the outer sleeve 14, causing the middle sleeve 15 to slide out of the outer sleeve 14. At the same time, the differential gear 16 pushes the rack 17 to move, causing the lowering column 18 to slide out of the middle sleeve 15. Therefore, the outer sleeve 14, the middle sleeve 15 and the lowering column 18 form a two-level telescopic structure. The lowering column 18 extends into the milk pot 8 to open the dial 22. The outer sleeve 14 rotates while revolving. The dial 22 slowly stirs the concentrated goat milk in the milk pot 8, evenly distributes the temperature drop of the goat milk during the freezing process, accelerates the cooling rate of the goat milk, and achieves the effect of improving the freezing efficiency.

[0024] The third servo motor 19 is energized to drive the active bevel gear 20 to rotate, and the active bevel gear 20 drives the two driven bevel gears 21 to rotate in opposite directions at the same speed. A pair of paddles 22 are unfolded in opposite directions, and the paddles 22 stir the goat milk. The third servo motor 19 drives the paddle 22 to rotate during the stirring process. The paddle 22 is tightly fitted with the sliding column 18. Every time the paddle 22 rotates one circle, the sliding column 18 can be used to scrape off the goat milk attached to the inside. After the freezing is completed, the paddle 22 is retracted, and the secondary telescopic structure formed by the outer sleeve 14, the middle sleeve 15 and the sliding column 18 is also retracted in turn. Due to the sliding seal between the middle sleeve 15 and the sliding column 18, the paddle 22 uses the middle sleeve 15 to scrape off the goat milk attached to the outside. Except for the bottom of the sliding column 18 which needs to be cleaned at the end, the other stirring structure parts can scrape off the goat milk, thereby preventing the goat milk from sticking and facilitating equipment cleaning.

[0025] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A goat milk powder vacuum freeze drying device with intelligent temperature control function, characterized in that: The invention comprises a vacuum tank (1), a sliding cover (2), a temperature control component and a plurality of stirring components, wherein the temperature control component and the plurality of stirring components are arranged inside the vacuum tank (1), the sliding cover (2) is arranged on one side of the vacuum tank (1), and the sliding cover (2) seals one end of the vacuum tank (1), a pair of columns are arranged at one end of the vacuum tank (1) close to the sliding cover (2), and an opening and closing component is installed on the pair of columns, the opening and closing component, the temperature control component and the plurality of stirring components are all connected to a control system circuit, and the temperature control component controls the temperature inside the vacuum tank (1), and a milk pot (8) is arranged below each stirring component, the milk pot (8) contains concentrated goat milk, and the stirring component stirs the concentrated goat milk.

2. The goat milk powder vacuum freeze-drying device with intelligent temperature control function according to claim 1, characterized in that: A threaded hole is provided at both the upper and lower ends of the sliding cover (2); a circular groove is provided on a side of the sliding cover (2) close to the vacuum tank (1); a movable sealing plate (3) is slidably provided in the circular groove; an electromagnetic spring is provided between the movable sealing plate (3) and the sliding cover (2); the electromagnetic spring is connected to a control system via an electric circuit; and a sealing rubber ring is provided on a side of the movable sealing plate (3) close to the vacuum tank (1).

3. The goat milk powder vacuum freeze-drying device with intelligent temperature control function according to claim 2, characterized in that: The opening and closing assembly comprises a pair of screw rods (4), a chain (6) and a first servo motor (7). The pair of screw rods (4) are connected between the two columns. The pair of screw rods (4) respectively match the two threaded holes on the sliding cover (2). A sprocket (5) is installed at one end of each screw rod (4). The chain (6) is connected to the two sprockets (5). The first servo motor (7) is coaxially connected to the sprocket (5) located at the bottom.

4. The goat milk powder vacuum freeze-drying device with intelligent temperature control function according to claim 1, characterized in that: There is a conical protrusion in the middle of the milk pan (8), and a magnet is provided at the bottom of the milk pan (8). A slide rail and the same number of electromagnets as the milk pan (8) are provided at the bottom of the vacuum tank (1), and the electromagnets attract the magnet at the bottom of the milk pan (8).

5. The goat milk powder vacuum freeze-drying device with intelligent temperature control function according to claim 1, characterized in that: Each group of the stirring components comprises a machine cover (9), an outer gear ring (10), a central gear (11), a second servo motor (12), a planetary gear ring (13) and an outer sleeve (14), wherein the machine cover (9) is mounted above the interior of the vacuum tank (1), the machine cover (9) is inverted, the outer gear ring (10) is mounted at the bottom of the machine cover (9), the second servo motor (12) is invertedly mounted inside the machine cover (9), the central gear (11) is mounted on the second servo motor (12), the central gear (11) is located in the middle of the machine cover (9), the planetary gear ring (13) is sleeved on the outside of the outer sleeve (14), and the planetary gear ring (13) is located between the outer gear ring (10) and the central gear (11).

6. The goat milk powder vacuum freeze-drying device with intelligent temperature control function according to claim 5, characterized in that: The outer gear ring (10) and the center gear (11) are both provided with ribs at the upper and lower ends, and the ribs block and limit the planetary gear ring (13). The planetary gear ring (13) is meshed with the outer gear ring (10) and the center gear (11). The top of the outer sleeve (14) is provided with two through grooves, and the inner wall of the outer sleeve (14) is symmetrically provided with two tooth grooves arranged along the axial direction.

7. The goat milk powder vacuum freeze-drying device with intelligent temperature control function according to claim 6, characterized in that: Each group of the stirring components includes a middle sleeve (15) and a lower column (18), wherein the middle sleeve (15) is slidably installed in the outer sleeve (14), and the lower column (18) is slidably installed in the middle sleeve (15). A pair of racks (17) are symmetrically arranged on the top of the lower column (18), and a pair of differential gears (16) are rotatably installed on the top of the middle sleeve (15). The pair of differential gears (16) are symmetrically installed, and a small motor is arranged on one side of each differential gear (16). The small motor is arranged in the middle sleeve (15), and both sides of each differential gear (16) are meshed with the tooth groove and the rack (17).

8. The goat milk powder vacuum freeze-drying device with intelligent temperature control function according to claim 7, characterized in that: A third servo motor (19) is provided inside the lowering column (18), and a driving bevel gear (20) is installed on the motor shaft of the third servo motor (19). Both sides of the lowering column (18) are rotatably connected to a shift plate (22), and a pair of the shift plates (22) are symmetrically installed on both sides of the lowering column (18). A driven bevel gear (21) is also connected at the junction of each shift plate (22) and the lowering column (18), and the pair of the driven bevel gears (21) are meshed with the driving bevel gear (20).

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