Household food processing microalgae grinding device based on energy-saving motor

Abstract

The invention discloses a household food processing microalgae grinding device based on an energy-saving motor, and relates to the technical field of grinding and smashing equipment, the household food processing microalgae grinding device comprises a rack, a grinding bin, an end cover, a feeding bin, a rotating shaft, the motor, a fixing sleeve, a supporting arm, a pivot, a grinding assembly and scraping plates, the two scraping plates are located on the two sides of the grinding assembly respectively, and a driving assembly is arranged on the end cover; the driving assembly is used for driving the two scraping plates to move in the radial direction of the grinding bin when the grinding assembly rotates so as to adjust the distance between the outer walls of the scraping plates and the inner wall of the grinding bin. According to the microalgae powder grinding device, the driving assembly drives the scraping plate to move towards the radial outer side of the grinding bin, so that the distance between the scraping plate and the inner cavity wall of the grinding bin is reduced, the scraping plate can drive microalgae powder accumulated at the bottom of the grinding bin to be away from the bottom of the grinding bin along with rotation of the scraping plate, and due to the fact that a gap is formed between the scraping plate and the inner wall of the grinding bin, the grinding efficiency is improved; the accumulation amount of the microalgae powder on the bottom wall of the inner cavity of the grinding bin is small, so that the microalgae powder can be fully ground by the grinding roller.

Description

Technical Field

[0001] The present invention relates to the technical field of grinding and pulverizing equipment, and particularly to a household food processing microalgae grinding device based on an energy-saving motor. Background Art

[0002] Microalgae food is an emerging sustainable food source and has received extensive attention in recent years. Microalgae food refers to food with microalgae as the main raw material or ingredient. Microalgae are a type of tiny single-celled or multi-celled algae that can only be observed under a microscope. These algae are widely present in nature, including freshwater and marine environments. The definition of microalgae food can include the following aspects: Source of raw materials: Using microalgae as the basic raw material, these microalgae can be naturally grown or artificially cultivated. Nutritional components: Microalgae are rich in protein, polyunsaturated fatty acids, vitamins, minerals, and various bioactive substances, so microalgae food usually has high nutritional value. Diverse forms: Microalgae food can exist in various forms, such as powder, tablet, capsule, liquid, etc., and can be used for direct consumption or as a food additive. Wide range of uses: Microalgae food is not only used for human consumption, but also for the development of animal feed, nutritional supplements, and functional foods. Sustainable development: Microalgae grow rapidly and have relatively low requirements for the environment, so they are considered a sustainable food source.

[0003] When processing microalgae food, it is necessary to grind microalgae powder with a relatively large particle size to reduce its particle size and thus meet the food processing requirements. Existing grinding and pulverizing equipment mainly grinds microalgae powder by rolling it on a grinding pan. Since microalgae powder is usually piled up on the grinding pan, when grinding and pulverizing, the microalgae powder in the inner layer area of the microalgae powder pile is not easily ground by the grinding pan, resulting in poor grinding accuracy and the particle size of the ground microalgae powder not meeting the requirements. Therefore, it is necessary to design a device or equipment that can fully grind microalgae powder. Summary of the Invention

[0004] The purpose of the present invention is to provide a household food processing microalgae grinding device based on an energy-saving motor to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] A household food processing microalgae grinding device based on an energy-saving motor, including a frame, and further including:

[0007] A grinding chamber installed on the frame, both ends of the grinding chamber are open and each is connected with an end cover, and a feeding chamber is connected through the top of the grinding chamber;

[0008] A rotating shaft rotatably connected to the end cover and passing into the grinding chamber, the rotating shaft is driven to rotate by a motor installed on the frame, a fixed sleeve is fixedly sleeved on the part of the rotating shaft passing into the grinding chamber, two support arms are fixedly connected to both ends of the periphery of the fixed sleeve, a pivot shaft is rotatably connected to the ends of the two support arms away from the fixed sleeve, and a grinding assembly is installed on the periphery of the pivot shaft;

[0009] Two scraping plates connected to the periphery of the fixed sleeve, the two scraping plates are respectively located on both sides of the grinding assembly, a driving assembly is provided on the end cover, and the driving assembly is used to drive the two scraping plates to move radially along the grinding chamber when the grinding assembly rotates, so as to adjust the distance between the outer wall of the scraping plate and the inner wall of the grinding chamber.

[0010] Through the above technical solution, the microalgae powder is put into the grinding chamber from the feeding bin, and then the rotating shaft rotates, and the grinding roller rotates in the grinding chamber, so that the microalgae powder in the grinding chamber can be crushed and ground. In addition, when the grinding roller rotates downward, the driving assembly will drive the scraping plate to move radially outward of the grinding chamber, so that the distance between the scraping plate and the inner wall of the grinding chamber decreases. In this way, as the scraping plate rotates, the scraping plate can drive the microalgae powder accumulated at the bottom of the grinding chamber away from the bottom of the grinding chamber. And because there is a gap between the scraping plate and the inner wall of the grinding chamber, the accumulation amount of microalgae powder on the inner bottom wall of the grinding chamber is small, so that the grinding roller can fully grind the microalgae powder. And when the scraping plate rotates upward, the distance between the scraping plate and the inner wall of the grinding chamber increases, so that the microalgae powder re-accumulates on the inner bottom wall of the grinding chamber.

[0011] Furthermore, a fixed sleeve is fixedly connected to the periphery of the fixed sleeve, a connecting column is telescopically inserted into the fixed sleeve, and the scraping plate is fixedly connected to the end of the connecting column passing out of the fixed sleeve.

[0012] Through the above technical solution, the connecting column slides in the fixed sleeve, so that the scraping plate can move radially along the grinding chamber.

[0013] Furthermore, the driving assembly includes a sliding pin fixedly connected to the periphery of the connecting column, a special-shaped groove for the end of the sliding pin passing out of the fixed sleeve to be inserted is formed on the surface of the end cover. The special-shaped groove includes an arc-shaped groove and a straight groove connected in sequence at the head and tail, and the connection end of the straight groove and the arc-shaped groove is in smooth transition. When the sliding pin slides from the arc-shaped groove into the straight groove, the sliding pin will drive the connecting column to move radially outward of the grinding chamber, so that the distance between the scraping plate and the inner wall of the grinding chamber decreases. A kidney-shaped hole for the sliding pin to freely pass through is formed on the periphery of the fixed sleeve.

[0014] Through the above technical solution, when the scraping plate rotates with the rotating shaft, the sliding pin slides synchronously in the special-shaped groove. When the sliding pin slides from the arc groove into the straight groove, the sliding pin will drive the connecting column to move towards the radially outer side of the grinding chamber, reducing the distance between the outer wall of the scraping plate far from the rotating shaft and the inner wall of the grinding chamber. On the contrary, when the sliding pin slides from the straight groove into the arc groove, the sliding pin will drive the scraping plate to move in the opposite direction, increasing the distance between the outer wall of the scraping plate far from the rotating shaft and the inner wall of the grinding chamber.

[0015] Further, a gear is fixedly sleeved on the end of the pivot shaft, and an annular internal gear is embedded on the surface of the end cover. The annular internal gear is coaxial with the rotating shaft and is internally meshed with the gear.

[0016] Through the above technical solution, when the rotating shaft rotates, the gear will be internally meshed with the annular internal gear, and then the pivot shaft can be driven to rotate. When the pivot shaft rotates, the grinding assembly can be driven to rotate, so that the grinding assembly can grind and roll the microalgae powder in the grinding chamber.

[0017] Further, a discharge bin is connected through the bottom of the grinding chamber. A lifting cylinder is vertically installed on the frame. The cylinder rod of the lifting cylinder is fixedly connected with a grinding support plate. The grinding support plate forms a sliding fit with the inner wall of the discharge bin. After the lifting cylinder drives the grinding support plate to move upward in place, a grinding cavity is formed between the upper surface of the grinding support plate and the inner wall of the grinding chamber.

[0018] Through the above technical solution, the cylinder rod of the lifting cylinder extends, thereby driving the grinding support plate to move upward, so that the microalgae powder in the grinding chamber will accumulate on the grinding support plate. Since the surface of the grinding support plate is flat, the microalgae powder will not accumulate locally on the top surface of the grinding support plate. Then, as the sliding pin slides in the straight groove, the scraping plate evenly spreads the microalgae powder on the top surface of the grinding support plate. And after grinding, the cylinder rod of the lifting cylinder shortens, causing the grinding support plate to move downward, so that the ground microalgae powder can fall from the discharge bin.

[0019] Further, the grinding assembly includes a mounting sleeve fixedly sleeved on the periphery of the pivot shaft. A grinding roller is sleeved on the mounting sleeve. The longitudinal section of the grinding roller is annular and there is a gap between the inner wall of the grinding roller and the periphery of the mounting sleeve. An extension unit is arranged in the gap. The extension unit is used to make the grinding roller move radially along the mounting sleeve and keep the state of synchronous rotation around the axial direction of the pivot shaft.

[0020] Through the above technical solution, when the grinding roller rolls on the surface of the grinding platen to grind the microalgae powder, since the grinding roller is under a large extrusion force from the grinding platen when it rolls on the surface of the grinding platen, at this time, through the extension unit, the grinding roller can generate a movement away from the grinding platen, so that the grinding roller can be buffered on the premise of ensuring the grinding effect on the microalgae powder.

[0021] Further, the extension unit includes positioning blocks fixed to the inner cavity wall of the grinding roller and the periphery of the mounting sleeve. Slots are formed on the opposite surfaces of two adjacent positioning blocks, and a hollow rubber column is jointly clamped and installed in two adjacent slots. The inner cavity of the hollow rubber column is filled with compressed gas, and the axial direction of the hollow rubber column is parallel to the axial direction of the grinding roller.

[0022] Through the above technical solution, the compressed gas in the hollow rubber column can cause the hollow rubber column to expand and deform, so that the hollow rubber column can generate an extension deformation when the grinding roller receives the reaction force from the surface of the grinding platen, and then the grinding roller can generate a certain degree of movement, so that the grinding roller can be buffered and protected.

[0023] Further, mounting rings are fixedly sleeved at both ends of the mounting sleeve. A plurality of cylindrical parts are fixedly connected to the periphery of the mounting ring. A piston is slidably clamped in the inner cavity of the cylindrical part. A driving pin is coaxially and fixedly penetrated through the end face of the piston. The driving pin slidably penetrates out of the end face of the cylindrical part. One end of the driving pin penetrating out of the cylindrical part abuts against the inner cavity wall of the grinding roller, and the outer wall of the cylindrical part is communicated with the inner cavity of the hollow rubber column through a hose.

[0024] Through the above technical solution, when the grinding roller moves relative to the pivot, the end of the driving pin will be squeezed by the inner cavity wall of the grinding roller, so that the driving pin moves in the direction of shrinking into the inner cavity of the cylindrical part, which can drive the piston to move. The piston squeezes the air in the inner cavity of the cylindrical part into the inner cavity of the lowermost hollow rubber column, so that the air pressure in the hollow rubber column increases, so that the grinding roller has sufficient extrusion force on the microalgae powder.

[0025] Further, one end of the driving pin penetrating out of the cylindrical part is spherical.

[0026] Through the above technical solution, the contact area between the driving pin and the inner cavity wall of the grinding roller is small, so that the influence of the curved surface of the inner cavity wall of the grinding roller on the end of the driving pin is small.

[0027] Further, a spring is installed in the inner cavity of the cylindrical part, and the two ends of the elastic force direction of the spring elastically abut against the end face of the piston and the inner cavity wall of the cylindrical part respectively.

[0028] Through the above technical solution, the spring generates an elastic abutting force on the piston. As a result, in the initial state, the piston can drive the drive pin to move towards the outer side of the cylindrical part, so that the end of the drive pin remains in contact with the inner cavity wall of the grinding roller.

[0029] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0030] 1. In the present invention, the microalgae powder is put into the grinding chamber from the feeding bin, and then the rotating shaft rotates, causing the grinding roller to rotate in the grinding chamber, thereby enabling the microalgae powder in the grinding chamber to be crushed and ground. In addition, when the grinding roller rotates downward, the driving assembly drives the scraping plate to move towards the radial outer side of the grinding chamber, reducing the distance between the scraping plate and the inner cavity wall of the grinding chamber. In this way, as the scraping plate rotates, the scraping plate can drive the microalgae powder accumulated at the bottom of the grinding chamber away from the bottom of the grinding chamber. And because there is a gap between the scraping plate and the inner wall of the grinding chamber, the amount of microalgae powder accumulated on the bottom wall of the inner cavity of the grinding chamber is less, so that the grinding roller can fully grind the microalgae powder. When the scraping plate rotates upward, the distance between the scraping plate and the inner cavity wall of the grinding chamber increases, causing the microalgae powder to re-accumulate on the bottom wall of the inner cavity of the grinding chamber;

[0031] 2. In the present invention, when the scraping plate rotates with the rotating shaft, the sliding pin slides synchronously in the special-shaped groove. When the sliding pin slides from the arc-shaped groove to the straight groove, the sliding pin will drive the connecting column to move towards the radial outer side of the grinding chamber, reducing the distance between the outer wall of the side of the scraping plate away from the rotating shaft and the inner cavity wall of the grinding chamber. On the contrary, when the sliding pin slides from the straight groove to the arc-shaped groove, the sliding pin will drive the scraping plate to move in the opposite direction, increasing the distance between the outer wall of the side of the scraping plate away from the rotating shaft and the inner cavity wall of the grinding chamber;

[0032] 3. In the present invention, the compressed gas in the hollow rubber column can cause the hollow rubber column to expand and deform, enabling the hollow rubber column to undergo extension deformation when the grinding roller receives the reaction force from the surface of the grinding support plate. As a result, the grinding roller can move to a certain extent, and the grinding roller can be buffered and protected. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the overall structure of a household food processing microalgae grinding device based on an energy-saving motor in the present invention;

[0034] Figure 2 is Figure 1 a schematic diagram of the positional relationship from another perspective;

[0035] Figure 3 It is a schematic diagram of the positional relationship after the grinding chamber, end cover and grinding roller in the present invention are assembled;

[0036] Figure 4 is Figure 3Schematic diagram of the positional relationship from another perspective in

[0037] Figure 5 Schematic diagram of the positional relationship after the arm, grinding roller and scraper are assembled in the present invention;

[0038] Figure 6 Schematic diagram of the positional relationship after the grinding roller and the mounting sleeve are assembled in the present invention;

[0039] Figure 7 is Figure 6 Schematic diagram of the positional relationship after a part of the structure in is cut open;

[0040] Figure 8 is Figure 7 Enlarged schematic diagram of the local structure at A in ;

[0041] Figure 9 is Figure 6 Exploded decomposition schematic diagram of the structure in ;

[0042] Figure 10 Cross-sectional schematic diagram after the grinding roller and the mounting sleeve are assembled in the present invention;

[0043] Figure 11 Schematic diagram of the structure of the end cover in the present invention.

[0044] In the figure, the descriptions of the reference numerals are as follows: 1, frame; 2, motor; 3, feeding bin; 4, grinding bin; 5, end cover; 6, discharge bin; 7, grinding support plate; 8, fixed sleeve; 9, annular internal gear; 10, arm; 11, grinding roller; 12, scraper; 13, fixed sleeve; 14, arc groove; 15, pivot; 16, gear; 17, sliding pin; 18, kidney-shaped hole; 19, connecting column; 20, straight groove; 21, mounting sleeve; 22, positioning block; 23, cylindrical part; 24, hollow rubber column; 25, mounting ring; 26, driving pin; 27, piston; 28, spring; 29, clamping groove; 30, lifting cylinder. Detailed implementation manners

[0045] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0046] Please refer to Figures 1 - 11, the present invention provides a technical solution: a household food processing microalgae grinding device based on an energy-saving motor, which includes a frame 1. A hollow groove is provided at the top of the frame 1. A grinding chamber 4 is installed on the top of the frame 1. The grinding chamber 4 is located within the hollow groove. Both ends of the grinding chamber 4 in the axial direction are open and are connected with end caps 5 by means of screws. A feeding bin 3 is welded to the top of the grinding chamber 4. The interior of the feeding bin 3 communicates with the inner cavity of the grinding chamber 4. A discharge bin 6 is welded to the lower side of the periphery of the grinding chamber 4. The discharge bin 6 communicates with the inner cavity of the grinding chamber 4. In addition, a lifting cylinder 30 is vertically installed on the frame 1. The end of the cylinder rod of the lifting cylinder 30 is welded with a grinding support plate 7. The grinding support plate 7 forms a sliding fit with the inner cavity wall of the discharge bin 6. In this way, when the cylinder rod of the lifting cylinder 30 extends, it can drive the grinding support plate 7 to move upward and slide within the inner cavity of the discharge bin 6. When the cylinder rod of the lifting cylinder 30 extends in place, the upper surface of the grinding support plate 7 and the inner cavity wall of the discharge bin 6 form a grinding cavity. The upper part of the grinding cavity is an arc surface, and the lower part is a flat surface;

[0047] One end of the frame 1 is installed with a motor 2. A rotating shaft is drivingly connected to the motor 2. The rotating shaft penetrates through the two end caps 5, and bearings are installed on the end caps 5. The rotating shaft is installed on the bearings so that the rotating shaft is rotatably connected to the end caps 5. A fixed sleeve 8 is fixedly sleeved on the part of the rotating shaft that penetrates into the grinding chamber 4. Two support arms 10 are fixedly connected to both ends of the periphery of the fixed sleeve 8. The two support arms 10 are jointly rotatably connected to a pivot shaft 15 at the end away from the fixed sleeve 8. An installation sleeve 21 is fixedly sleeved on the periphery of the pivot shaft 15. A grinding roller 11 is sleeved on the installation sleeve 21. The longitudinal section of the grinding roller 11 is annular and there is a gap between the inner cavity wall and the periphery of the installation sleeve 21. Positioning blocks 22 are fixedly connected to the inner cavity wall of the grinding roller 11 and the periphery of the installation sleeve 21 respectively. A clamping groove 29 is provided on the opposite surface of two adjacent positioning blocks 22. A hollow rubber column 24 is jointly clamped and installed in two adjacent clamping grooves 29. The inner cavity of the hollow rubber column 24 is filled with compressed gas. The axis of the hollow rubber column 24 is parallel to the axis of the grinding roller 11;

[0048] Two fixing sleeves 13 are fixedly connected to both ends of the periphery of the fixed sleeve 8 in the axial direction. A connecting column 19 is telescopically inserted into the fixing sleeve 13. One end of the two connecting columns 19 located on the same side of the grinding chamber 4 that penetrates out of the fixing sleeve 13 is jointly fixedly connected with a scraper 12. The two scrapers 12 are respectively located on both radial sides of the grinding roller 11. A sliding pin 17 is fixedly connected to the periphery of the connecting column 19. A special-shaped groove for the end of the sliding pin 17 that penetrates out of the fixing sleeve 13 to be inserted is provided on the surface of the end cap 5. The special-shaped groove includes an arc-shaped groove 14 and a straight groove 20 that are connected in sequence from beginning to end. The connection end of the straight groove 20 and the arc-shaped groove 14 is in smooth transition. When the sliding pin 17 slides from the arc-shaped groove 14 to the straight groove 20, the sliding pin 17 will drive the connecting column 19 to move in the radial outer direction of the grinding chamber 4, reducing the distance between the scraper 12 and the inner wall of the grinding chamber 4. A kidney-shaped hole 18 for the sliding pin 17 to freely pass through is provided on the periphery of the fixing sleeve 13. The length direction of the straight groove 20 is parallel to the top surface of the grinding support plate 7;

[0049] The pivot 15 passes through both axial ends of the support arm 10, and a gear 16 is fixedly sleeved on each of them. An annular internal gear 9 is embedded on the surface of the end cover 5. The annular internal gear 9 is coaxial with the rotating shaft and is internally meshed with the gear 16. Thus, when the rotating shaft rotates and drives the fixed sleeve 8 to rotate, the gear 16 will mesh with the annular internal gear 9 for transmission, and then the pivot 15 can be driven to rotate. When the pivot 15 rotates, the mounting sleeve 21 can be rotated, and then the grinding roller 11 is driven to rotate by a plurality of hollow rubber columns 24. In addition, in this embodiment, the plurality of hollow rubber columns 24 are arranged in an axial array along the grinding roller 11.

[0050] Mounting rings 25 are fixedly sleeved at both ends of the mounting sleeve 21. A plurality of cylindrical parts 23 are fixedly connected to the periphery of the mounting ring 25. The axial direction of the cylindrical part 23 is perpendicular to the axial direction of the mounting sleeve 21, and the position of the cylindrical part 23 matches the position of the hollow rubber column 24. A piston 27 is slidably engaged and installed in the inner cavity of the cylindrical part 23. A driving pin 26 is coaxially fixed to the end face of the piston 27. The driving pin 26 slidably passes through the end face of the cylindrical part 23. One end of the driving pin 26 passing through the cylindrical part 23 is in contact connection with the inner cavity wall of the grinding roller 11. The outer wall of the cylindrical part 23 is communicated with the inner cavity of the hollow rubber column 24 through a hose. One end of the driving pin 26 passing through the cylindrical part 23 is spherical. A spring 28 is installed in the inner cavity of the cylindrical part 23. The elastic force directions of the spring 28 elastically abut against the end face of the piston 27 and the inner cavity wall of the cylindrical part 23 at both ends respectively.

[0051] The working principle of the present invention:

[0052] The microalgae powder is put into the grinding chamber 4 from the feeding bin 3. At this time, the grinding support plate 7 is driven by the lifting cylinder 30 to move upward in place, and the upper surface of the grinding support plate 7 and the inner cavity wall of the grinding chamber 4 enclose a grinding cavity. The microalgae powder falls from the grinding chamber 4 into the grinding cavity and accumulates on the upper surface of the grinding support plate 7. Then, the motor 2 is started. The motor 2 drives the rotating shaft to rotate. When the rotating shaft rotates, it drives the fixed sleeve 8 to rotate. When the fixed sleeve 8 rotates, it will drive the fixed sleeve 13 to rotate, so that the sliding pin 17 slides from the arc-shaped groove 14 to the straight groove 20, and the sliding pin 17 drives the connecting column 19 and the scraping plate 12 to move in the radial outer direction of the grinding chamber 4, so that the distance between the outer wall of the scraping plate 12 away from the rotating shaft and the inner cavity wall of the grinding chamber 4 decreases;

[0053] Reference Figure 3 Or Figure 4, when the grinding roller 11 rotates clockwise, it will cause the scraper 12 on the left side to spread the microalgae powder accumulated on the top surface of the grinding support plate 7, resulting in a smaller thickness of the microalgae powder accumulated on the top of the grinding support plate 7. At this time, when the sliding pin 17 slides in the straight groove 20, the longitudinal distance between the scraper 12 and the top surface of the grinding support plate 7 is fixed, enabling the scraper 12 to evenly spread the microalgae powder on the top surface of the grinding support plate 7. At the same time, as the rotating shaft rotates, the scraper 12 can drive the excess microalgae powder upward. The gear 16 meshes with the annular internal gear 9 and rotates, causing the pivot 15 to drive the grinding roller 11 to rotate, so that the grinding roller 11 can roll and grind the microalgae powder on the top surface of the grinding support plate 7;

[0054] Since the distance between the top surface of the grinding support plate 7 and the axis of the rotating shaft is smaller than the radius of the grinding chamber 4, when the grinding roller 11 rolls on the top surface of the grinding support plate 7 to roll and grind the microalgae powder, the grinding roller 11 will be subjected to a large extrusion force from the grinding support plate 7. At this time, through the extension and deformation of the hollow rubber column 24, the grinding roller 11 can move upward to buffer the resistance received by the grinding roller 11. When the grinding roller 11 moves upward, the end of the driving pin 26 will be squeezed by the inner wall of the cavity of the grinding roller 11, causing the driving pin 26 to move in the direction of shrinking into the inside of the cylindrical part 23. Then, the piston 27 can squeeze the air in the cavity of the cylindrical part 23 into the hollow rubber column 24, increasing the pressure of the compressed gas in the hollow rubber column 24, thereby ensuring the rolling and grinding effect of the grinding roller 11 on the microalgae powder;

[0055] After the grinding roller 11 finishes rolling and grinding the microalgae powder on the top surface of the grinding support plate 7, the grinding roller 11 continues to move upward clockwise. The sliding pin 17 will slide from the straight groove 20 into the arc groove 14, causing the sliding pin 17 to drive the connecting column 19 to move towards the rotating shaft, increasing the distance between the scraper 12 and the inner wall of the grinding chamber 4. At this time, the microalgae powder previously driven upward by the left scraper 12 will move from the gap between the scraper 12 and the grinding chamber 4 to the surface of the grinding support plate 7, causing the microalgae powder to re-accumulate on the top surface of the grinding support plate 7. As the rotating shaft continues to rotate, the grinding roller 11 can repeatedly roll and grind the microalgae powder in the grinding chamber 4. After rolling and grinding, the cylinder rod of the lifting cylinder 30 shortens and drives the grinding support plate 7 to move downward, so that the ground microalgae powder can fall into the external collection device from the discharge bin 6. In addition, when the grinding roller 11 moves away from the grinding support plate 7, under the action of the air pressure in the cavity of the hollow rubber column 24, the hollow rubber column 24 returns from the extended deformation state to the initial state. At the same time, the spring 28 elastically presses against the piston 27, and the piston 27 can drive the driving pin 26 to move towards the outside of the cylindrical part 23, so that the end of the driving pin 26 remains in contact with the inner wall of the cavity of the grinding roller 11, and the air pressure in the hollow rubber column 24 returns to the initial state.

[0056] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Although embodiments of the present invention have been shown and described, those of ordinary skill in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A household food processing microalgae grinding device based on an energy-saving motor, comprising a frame (1), characterized in that, Further included are: A grinding chamber (4) installed on the frame (1), with both ends of the grinding chamber (4) open and each connected with an end cover (5), and a feeding bin (3) is connected through the top of the grinding chamber (4) in a penetrating manner; A rotating shaft rotatably connected to the end cover (5) and penetrating into the grinding chamber (4), the rotating shaft is driven to rotate by a motor (2) installed on the frame (1), a fixed sleeve (8) is fixedly sleeved on the part of the rotating shaft penetrating into the grinding chamber (4), two support arms (10) are fixedly connected to both ends of the periphery of the fixed sleeve (8), a pivot shaft (15) is rotatably connected to the ends of the two support arms (10) away from the fixed sleeve (8), and a grinding assembly is installed on the periphery of the pivot shaft (15); Two scraping plates (12) connected to the periphery of the fixed sleeve (8), the two scraping plates (12) are respectively located on both sides of the grinding assembly, and a driving assembly is provided on the end cover (5), and the driving assembly is used to drive the two scraping plates (12) to move radially along the grinding chamber (4) when the grinding assembly rotates, so as to adjust the distance between the outer wall of the scraping plate (12) and the inner wall of the grinding chamber (4).

2. The household food processing microalgae grinding device based on an energy-saving motor according to claim 1, wherein, A fixed sleeve (13) is fixedly connected to the periphery of the fixed sleeve (8), a connecting column (19) is telescopically inserted into the fixed sleeve (13), and the scraping plate (12) is fixedly connected to the end of the connecting column (19) protruding out of the fixed sleeve (13).

3. The household food processing microalgae grinding device based on an energy-saving motor according to claim 2, characterized in that, The driving assembly includes a sliding pin (17) fixedly connected to the periphery of the connecting column (19), a special-shaped groove for the end of the sliding pin (17) protruding out of the fixed sleeve (13) to be inserted is formed on the surface of the end cover (5), the special-shaped groove includes an arc-shaped groove (14) and a straight groove (20) connected in sequence at the head and tail, the connection end of the straight groove (20) and the arc-shaped groove (14) is in smooth transition, when the sliding pin (17) slides from the arc-shaped groove (14) into the straight groove (20), the sliding pin (17) will drive the connecting column (19) to move towards the radially outer direction of the grinding chamber (4), so that the distance between the scraping plate (12) and the inner wall of the grinding chamber (4) is reduced, and a kidney-shaped hole (18) for the sliding pin (17) to freely pass through is formed on the periphery of the fixed sleeve (13).

4. The household food processing microalgae grinding device based on an energy-saving motor according to claim 1, characterized in that, A gear (16) is fixedly sleeved on the end of the pivot shaft (15), a ring-shaped internal gear (9) is embedded on the surface of the end cover (5), the ring-shaped internal gear (9) is coaxial with the rotating shaft and is internally meshed with the gear (16).

5. A household food processing microalgae grinding device based on an energy-saving motor according to claim 1, characterized in that, A discharge bin (6) is connected through the bottom of the grinding chamber (4) in a penetrating manner, a lifting cylinder (30) is vertically installed on the frame (1), the cylinder rod of the lifting cylinder (30) is fixedly connected with a grinding support plate (7), the grinding support plate (7) forms a sliding fit with the inner wall of the discharge bin (6), after the lifting cylinder (30) drives the grinding support plate (7) to move upwards in place, a grinding cavity is formed by the upper surface of the grinding support plate (7) and the inner cavity wall of the grinding chamber (4).

6. The household food processing microalgae grinding device based on an energy-saving motor according to claim 5, characterized in that, The grinding assembly includes a mounting sleeve (21) fixedly sleeved on the periphery of the pivot (15). A grinding roller (11) is sleeved on the mounting sleeve (21). The longitudinal section of the grinding roller (11) is annular, and there is a gap between the inner cavity wall and the periphery of the mounting sleeve (21). An extension unit is arranged in the gap. The extension unit is used to move the grinding roller (11) radially along the mounting sleeve (21) and keep it rotating synchronously along the axis of the pivot (15).

7. A household food processing microalgae grinding device based on an energy-saving motor according to claim 6, characterized in that, The extension unit includes positioning blocks (22) fixedly connected to the inner cavity wall of the grinding roller (11) and the periphery of the mounting sleeve (21). The opposite surfaces of adjacent positioning blocks (22) are provided with clamping grooves (29). A hollow rubber column (24) is jointly clamped and installed in adjacent clamping grooves (29). The inner cavity of the hollow rubber column (24) is filled with compressed gas. The axis of the hollow rubber column (24) is parallel to the axis of the grinding roller (11).

8. A household food processing microalgae grinding device based on an energy-saving motor according to claim 7, wherein, Mounting rings (25) are fixedly sleeved at both ends of the mounting sleeve (21). A plurality of cylindrical parts (23) are fixedly connected to the periphery of the mounting rings (25). A piston (27) is slidably clamped and installed in the inner cavity of the cylindrical part (23). A driving pin (26) is coaxially and fixedly penetrated through the end face of the piston (27). The driving pin (26) slidably penetrates out of the end face of the cylindrical part (23). One end of the driving pin (26) penetrating out of the cylindrical part (23) is in contact connection with the inner cavity wall of the grinding roller (11). The outer wall of the cylindrical part (23) is communicated with the inner cavity of the hollow rubber column (24) through a hose.

9. The household food processing microalgae grinding device based on an energy-saving motor according to claim 8, characterized in that, One end of the driving pin (26) penetrating out of the cylindrical part (23) is spherical.

10. A household food processing microalgae grinding device based on an energy-saving motor according to claim 8, characterized in that, A spring (28) is installed in the inner cavity of the cylindrical part (23). The two ends of the elastic force direction of the spring (28) elastically abut against the end face of the piston (27) and the inner cavity wall of the cylindrical part (23) respectively.

Images