Raw material crushing device for craft beer production

Abstract

A raw material crushing device for craft beer production, comprising a base (1), a transmission assembly, a feeding box (4), a crushing assembly, and a grinding assembly. The transmission assembly, the crushing assembly, and the grinding assembly are all mounted on the base (1); the tail end of a crushing box (3) is connected to a discharging pipe (10) by means of a first sieving plate (306), the first sieving plate (306) is provided with a plurality of first sieve pores (305), and the first sieve pores (305) communicate a crushing cavity with the discharging pipe (10); and the tail end of the discharging pipe (10) is connected to the grinding assembly, and the grinding assembly is driven by a belt transmission structure.

Description

Raw material crushing device for craft beer production Technical Field

[0001] The patent of this invention relates to the technical field of beer brewing, specifically, to a raw material crushing device for craft beer production. Background Art

[0002] Beer contains rich nutrients such as protein, carbohydrates, vitamins, minerals, etc. Drinking it in moderation is good for your health and is a very popular drink among the public.

[0003] Malt is the main raw material for beer production. During production, barley needs to be soaked and then sent to a grinder for crushing, followed by saccharification, filtration, boiling, fermentation and other steps. The main purpose of crushing is to break the bran, expose the endosperm inside the malt and crush it into more and smaller soluble substances to produce more wort. Technical issues

[0004] At present, during the process of crushing the soaked malt, the malt may adhere to the inner wall of the grinder and the crushing roller, causing the crushed malt to also adhere to the inner wall of the grinder and the crushing roller. If the adhesion remains for a long time, fermentation and bacterial growth will occur, resulting in a decrease in the sanitary quality of the crushed malt and affecting the brewing of beer.

[0005] Moreover, the existing grinding device still has certain shortcomings. During use, malt often settles at the bottom of the device, resulting in low grinding efficiency. In addition, too much material cannot be added at one time, which easily causes the device to get stuck. Technical Solutions

[0006] The object of the present invention is to provide a raw material grinding device for craft beer production, which can improve the grinding efficiency and prevent a large amount of malt from adhering to the grinding device and affecting the subsequent grinding process.

[0007] The present invention is achieved as follows: a raw material crushing device for craft beer production includes a base, a transmission assembly, a feed box, a crushing assembly and a grinding assembly;

[0008] The transmission assembly, crushing assembly and grinding assembly are all installed on the base;

[0009] The transmission assembly includes a housing, and a drive motor, an output shaft, an output gear, a first transmission shaft, a second transmission shaft, a first transmission gear, a second transmission gear, a third transmission gear, a first coupling, a second coupling and a belt transmission structure installed in the housing;

[0010] The interior of the box is hollow, one end of the drive motor is transmission-connected to the output shaft, the end of the output shaft is fixedly connected to the output gear, the output gear is externally meshed with the first transmission gear, and the first transmission gear and the second transmission gear are fixedly mounted on the first transmission shaft, the end of the first transmission shaft is connected to the belt transmission structure through a first coupling, the second transmission gear is externally meshed with the third transmission gear, and the third transmission gear is fixedly mounted on the second transmission shaft;

[0011] The second transmission shaft is connected to the crushing roller via a second coupling, and the crushing roller is placed in a crushing box, a horizontally arranged cylindrical crushing cavity is provided in the crushing box, a feed box is provided at the top of the head end of the crushing box, and the feed box and the second coupling are provided at the same end of the crushing box, and the end of the crushing box is connected to the second crushing box via a discharge pipe;

[0012] The crushing roller is a spiral roller, and the outer diameter of the spiral roller gradually increases from the head end to the tail end. The tail end of the crushing roller is connected to a first grinding head, and the outer surface of the first grinding head is provided with a plurality of first grinding protrusions. The inner surface of the tail end of the crushing cavity is also provided with a plurality of second grinding protrusions, and the first grinding protrusions and the second grinding protrusions are staggered.

[0013] The end of the crushing box is connected to the discharge pipe through a first screen plate, and the first screen plate is provided with a plurality of first screen holes, and the first screen holes connect the crushing cavity with the discharge pipe;

[0014] The end of the discharge pipe is connected to a grinding assembly, and the grinding assembly is driven by a belt transmission structure.

[0015] Furthermore, the grinding assembly includes a grinding box, grinding balls, a collection box and a worm gear transmission structure;

[0016] The grinding box has an opening at the top, and the opening is covered by a cover. A feed port is provided eccentrically on the cover, and the feed port is connected to a discharge pipe. The center of the cover is connected to the grinding balls via a connecting rod, and one end of the connecting rod is placed outside the cover, and the other end of the connecting rod is placed inside the grinding box.

[0017] One end of the cover is fixed by a support rod, and the support rod is installed on the base;

[0018] A grinding space is formed in the grinding box by a curved grinding plate and two mirror-symmetrically arranged oblique baffles, one end of the two oblique baffles is connected to the top interior of the grinding box, and the other ends of the two oblique baffles are inclined downward and respectively connected to the two ends of the curved grinding plate. The curved grinding plate is provided with a plurality of second sieve holes, and the aperture of the second sieve holes is smaller than the aperture of the first sieve holes.

[0019] The bottom of the grinding ball is placed in the arc-shaped grinding plate, and the bottom of the grinding ball is evenly distributed with grinding teeth. A transmission rod passes through the center of the bottom of the grinding box, and the grinding box is fixedly connected to the transmission rod. The transmission rod passes through the collection box and is connected to the worm gear transmission structure. The worm gear transmission structure is driven by a belt transmission structure.

[0020] A cavity is provided inside the connecting rod, and a blowing head is connected to the middle of the connecting rod. The blowing head is arranged obliquely relative to the connecting rod, and the air outlet direction of the blowing head is toward the oblique baffle. The cavity of the connecting rod is connected to the blowing head, and an external ventilation structure is connected to the top of the connecting rod.

[0021] Furthermore, the grinding box is installed above the collecting box, and the bottom of the grinding box is installed above the collecting box through multiple spring supports, and the top ends of the multiple spring supports only contact the bottom of the grinding box and are not fixedly connected. A plurality of leakage holes are opened at the bottom of the grinding box, and the raw materials processed by the grinding box enter the collecting box through the leakage holes.

[0022] Furthermore, the transmission rod passes through the collecting box and is fixedly connected to the grinding box, and the transmission rod is placed on a section inside the collecting box and fixedly mounted on the stirring rod, and a discharge port is opened on one side of the lower end of the collecting box.

[0023] Furthermore, the belt transmission structure includes a first pulley, a second pulley, a belt, and a belt transmission shaft; the worm gear transmission structure includes a worm gear and a worm gear; the first pulley is fixedly mounted on the first transmission shaft; the second pulley is fixedly mounted on the end of the worm gear; the first pulley and the second pulley are driven by a belt; the head end of the worm gear is engaged with the worm gear; and the worm gear is fixedly mounted on the bottom end of the transmission rod.

[0024] Furthermore, the outer middle portion of the crushing box is fixedly connected to the support rod via a hoop, and a support ear is provided at one end of the outer side of the cover body, and the support ear is fixedly connected to the support rod.

[0025] Furthermore, the grinding teeth at the bottom of the grinding balls are all pointed toward the arc-shaped grinding plate.

[0026] Furthermore, the number of teeth of the first transmission gear, the second transmission gear and the second transmission gear are inconsistent. Beneficial effects

[0027] Compared with the prior art, the working principle and beneficial effects of the present invention are as follows: through the setting of the transmission component, a driving motor is used to complete primary crushing and advanced grinding, which improves work efficiency while also improving the fineness of malt grinding. Since the coarseness of malt will affect the saccharification effect when malt is saccharified, the present invention can further ensure the uniformity of the coarseness of malt and promote the saccharification effect of malt through multiple screening processes. The transmission component of the present invention adopts a multiple gear design and utilizes the external meshing transmission of the gears. Since the gear transmission ratio = the number of driven wheel teeth / the number of driving wheel teeth = the driving wheel speed / the driven wheel speed, the crushing speed and the grinding speed can be changed. The crushing component is a primary treatment and can be processed at a slower speed. Since the number of gear teeth used in the crushing component can be greater than the number of teeth of the first transmission gear connected to the grinding component.

[0028] Moreover, the crushing roller in the crushing box of the present invention is a spiral roller. When the spiral roller is working, it utilizes the forward force generated by the rotation of the S-shaped object, and utilizes this force to transport the malt raw materials and extrude and crush them. The crushing roller is designed so that the outer diameter of the spiral roller gradually increases from the head end to the end, and the cavity space gradually decreases, gradually completing the detailed processing of the raw materials in the narrow space. The end of the spiral roller is provided with a first grinding head connected to it, and the outer surface of the first grinding head is provided with a plurality of first grinding protrusions. The inner surface of the end of the crushing cavity is also provided with a plurality of second grinding protrusions, and the first grinding protrusions and the second grinding protrusions are staggered. When the raw material is transported to the position of the first grinding head, the first grinding protrusion rotates under the operation of the spiral roller, and the first grinding protrusion and the second grinding protrusion further extrude and crush the malt raw material, and then transport it to the second sieve hole through the first sieve hole on the first screen plate. Due to the rotation of the spiral roller, the air in the entire crushing box is S-shaped and the malt raw material is not easy to adhere to the surface of the crushing cavity of the crushing box.

[0029] The grinding assembly processes the malt raw materials again, and the arc-shaped grinding plate and two mirror-symmetrically arranged oblique baffles form a grinding space. The malt raw materials falling through the feed port flow into the arc-shaped grinding plate under the action of their own gravity, and grinding balls are set in the arc-shaped grinding plate. The entire grinding box is driven to rotate by a transmission rod, and the transmission rod is driven by a worm gear transmission structure. The grinding box rotates, so that the pressure-resistant raw materials in the arc-shaped grinding plate are squeezed and ground by the grinding balls. The malt raw materials that meet the grinding standards will pass through the second sieve hole into the collection box, and when the grinding box itself rotates, centrifugal force is generated. At this time, the malt raw materials may be thrown away from the arc-shaped grinding plate, but due to the setting of the oblique baffle, they will flow back into the arc-shaped grinding plate to form a circulation. The grinding is repeated in this cycle to ensure the grinding effect. However, since the malt contains sugar and other substances, it will adhere to the inner wall of the grinding box. Therefore, an air blowing head is also provided. The air outlet direction of the air blowing head is towards the oblique baffle, which can blow the adhered malt raw materials away from the adhesion.

[0030] The bottom of the grinding box is installed above the collecting box through multiple spring supports, and the top ends of the multiple spring supports only contact with the bottom of the grinding box and are not fixedly connected. Since the rotation of the grinding box itself will produce slight vibration, the spring supports not only play a supporting role, but also can enhance the vibration effect, which can make the malt in the grinding box fall due to the vibration and reduce the possibility of adhesion. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] FIG1 is an assembly diagram of a raw material crushing device for craft beer production provided by the present invention;

[0032] FIG2 is a schematic structural diagram of a transmission assembly of a raw material crushing device for craft beer production provided by the present invention;

[0033] FIG3 is a schematic structural diagram of a grinding box of a raw material grinding device for craft beer production provided by the present invention;

[0034] FIG4 is a partial enlarged view of portion A in FIG3 ;

[0035] FIG5 is a schematic structural diagram of a grinding roller of a raw material grinding device for craft beer production provided by the present invention;

[0036] FIG6 is a schematic diagram of a grinding box and its installation of a raw material crushing device for craft beer production provided by the present invention.

[0037] Reference numerals in the above drawings: 1, base; 2, box;

[0038] 3. Crushing box; 301. Crushing roller; 302. First grinding head; 303. First grinding protrusion; 304. Second grinding protrusion; 305. First sieve hole; 306. First screening plate;

[0039] 4. Feeding box; 5. Support rod;

[0040] 6. Grinding box; 601. Oblique baffle; 602. Curved grinding plate; 603. Grinding balls; 604. Air blowing head;

[0041] 7. Collection box; 8. Cover; 801. Support ear; 901. Drive motor; 902. Output shaft; 903. Output gear; 904. First transmission gear; 905. Second transmission gear; 906. Third transmission gear; 907. First coupling; 908. Second coupling; 909. First pulley; 910. Belt; 911. Second pulley; 912. Worm; 10. Discharge pipe; 11. Connecting rod; 12. Spring support; 13. Stirring rod; 14. Transmission rod; 15. Worm gear; 16. Discharge port. Modes for Carrying Out the Invention

[0042] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0043] The implementation of the present invention is described in detail below with reference to specific embodiments.

[0044] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", etc. indicate the orientation or position relationship, they are based on the orientation or position relationship shown in the drawings. This is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0045] 1-6 , which are preferred embodiments of the present invention.

[0046] A raw material grinding device for craft beer production includes a base 1, a transmission assembly, a feed box 4, a grinding assembly, and a grinding assembly; the transmission assembly, the grinding assembly, and the grinding assembly are all mounted on the base 1; the transmission assembly includes a housing 2, and a drive motor 901, an output shaft 902, an output gear 903, a first transmission shaft, a second transmission shaft, a first transmission gear 904, a second transmission gear 905, a third transmission gear 906, a first coupling 907, a second coupling 908, and a belt drive structure mounted within the housing 2;

[0047] By setting up the transmission assembly, a single drive motor 901 is used to complete primary crushing and advanced grinding, thereby improving work efficiency and the fineness of malt grinding. Since the coarseness of malt will affect the saccharification effect during saccharification, the present invention can further ensure the uniformity of the coarseness of malt through multiple screening processes, thereby promoting the saccharification effect of malt.

[0048] The interior of the box body 2 is hollow, and one end of the drive motor 901 is transmission-connected to the output shaft 902. The end of the output shaft 902 is fixedly connected to the output gear 903. The output gear 903 is externally meshed with the first transmission gear 904, and the first transmission gear 904 and the second transmission gear 905 are fixedly mounted on the first transmission shaft. The end of the first transmission shaft is connected to the belt transmission structure through the first coupling 907. The second transmission gear 905 is externally meshed with the third transmission gear 906, and the third transmission gear 906 is fixedly mounted on the second transmission shaft.

[0049] The transmission component adopts a multiple gear design and utilizes the external meshing transmission of the gears. The number of teeth of the first transmission, the second transmission gear 905 and the second transmission gear 905 are inconsistent. Since the gear transmission ratio = the number of teeth of the driven wheel / the number of teeth of the driving wheel = the driving wheel speed / the driven wheel speed, the crushing speed and the grinding speed can be changed. The crushing component is a primary processing and can be processed at a slower speed. Since the number of teeth of the gear used in the crushing component can be greater than the number of teeth of the first transmission gear 904 connected to the grinding component.

[0050] The second transmission shaft is connected to the crushing roller 301 via a second coupling 908, and the crushing roller 301 is placed in a crushing box 3. A horizontally arranged cylindrical crushing cavity is provided in the crushing box 3. A feed box 4 is provided at the top of the head end of the crushing box 3, and the feed box 4 and the second coupling 908 are provided at the same end of the crushing box 3. The end of the crushing box 3 is connected to the second crushing box 3 via a discharge pipe 10.

[0051] The crushing roller 301 is a spiral roller, and the outer diameter of the spiral roller gradually increases from the head end to the tail end. When the spiral roller is working, it uses the forward force generated by the rotation of the S-shaped object to transport the malt raw materials and squeeze and crush them. In addition, the design of the crushing roller 301 is that the outer diameter of the spiral roller gradually increases from the head end to the tail end, and the cavity space gradually decreases, thereby gradually completing the detailed processing of the raw materials in a small space.

[0052] During specific processing, the feeding box 4 above continuously adds maltose, and the added malt continuously flows from the head end to the end of the spiral roller, and pushes the malt that enters the crushing box 3 first to the end, promoting its processing.

[0053] The end of the crushing roller 301 is connected to a first grinding head 302, and the outer surface of the first grinding head 302 is provided with a plurality of first grinding protrusions 303, and the inner surface of the end of the crushing cavity is also provided with a plurality of second grinding protrusions 304, and the first grinding protrusions 303 and the second grinding protrusions 304 are staggered. When the raw material is transported to the position of the first grinding head 302, the first grinding protrusion 303 rotates under the operation of the spiral roller, and the first grinding protrusion 303 and the second grinding protrusion 304 further extrude and crush the malt raw material, and then transport it to the second sieve hole 305 on the first screening plate 306. Due to the rotation of the spiral roller, the air in the entire crushing box 3 is S-shaped and circulates, and the malt raw material is not easy to adhere to the surface of the crushing cavity of the crushing box 3.

[0054] The end of the crushing box 3 is connected to the discharge pipe 10 through a first screen plate 306. The first screen plate 306 has a plurality of first screen holes 305. The first screen holes 305 connect the crushing cavity with the discharge pipe 10. The end of the discharge pipe 10 is connected to the grinding assembly, and the grinding assembly is driven by a belt transmission structure.

[0055] The grinding assembly includes a grinding box 6, grinding balls 603, a collecting box 7, and a worm gear transmission structure. The grinding box 6 has an opening at the top, and the opening is covered by a cover 8. A feed port is provided eccentrically on the cover 8, and the feed port is connected to a discharge pipe 10. The center of the cover 8 is connected to the grinding balls 603 via a connecting rod 11, and one end of the connecting rod 11 is placed outside the cover 8, and the other end of the connecting rod 11 is placed inside the grinding box 6.

[0056] One end of the cover body 8 is fixed by a support rod 5, and the support rod 5 is installed on the base 1; the middle outer part of the crushing box 3 is fixedly connected to the support rod 5 through a hoop, and one end of the outer side of the cover body 8 is provided with a support ear 801, which is fixedly connected to the support rod 5.

[0057] A grinding space is formed within the grinding box 6 by a curved grinding plate 602 and two mirror-symmetrically arranged oblique baffles 601. One end of the two oblique baffles 601 is connected to the top interior of the grinding box 6, and the other ends of the two oblique baffles 601 are inclined downward and connected to the two ends of the curved grinding plate 602 respectively. The curved grinding plate 602 has a plurality of second sieve holes, and the aperture of the second sieve holes is smaller than the aperture of the first sieve holes 305.

[0058] The bottom of the grinding ball 603 is placed within the arc-shaped grinding plate 602, and the bottom of the grinding ball 603 is evenly distributed with grinding teeth. The grinding teeth on the bottom of the grinding ball 603 are all pointed toward the side of the arc-shaped grinding plate 602, ensuring more complete grinding. A transmission rod 14 passes through the center of the bottom of the grinding box 6, and the grinding box 6 is fixedly connected to the transmission rod 14. The transmission rod 14 passes through the collection box 7 and is connected to the worm gear and second pulley 912 transmission structure. The worm gear transmission structure is driven by a belt transmission structure.

[0059] A cavity is provided inside the connecting rod 11, and a blowing head 604 is connected to the middle of the connecting rod 11. The blowing head 604 is tilted relative to the connecting rod 11, and the air outlet direction of the blowing head 604 is toward the oblique baffle 601. The cavity of the connecting rod 11 is connected to the blowing head 604, and there is an external ventilation structure connected to the top of the connecting rod 11.

[0060] The grinding assembly processes the malt raw materials again, and the arc-shaped grinding plate 602 and two mirror-symmetrical inclined baffles 601 form a grinding space. The malt raw materials falling through the feed port flow into the arc-shaped grinding plate 602 under the action of their own gravity, and the arc-shaped grinding plate 602 is provided with grinding balls 603. The entire grinding box 6 is driven to rotate by the transmission rod 14, and the transmission rod 14 is driven by the worm gear 15 worm gear 15 transmission structure. The grinding box 6 rotates, so that the pressure-resistant raw materials in the arc-shaped grinding plate 602 are squeezed and ground by the grinding balls 603, and the malt that meets the grinding standards is ground. The raw materials will pass through the second sieve hole into the collecting box 7, and when the grinding box 6 rotates, centrifugal force will be generated. At this time, the malt raw materials may be thrown off the arc-shaped grinding plate 602, but due to the setting of the inclined baffle 601, they will flow back into the arc-shaped grinding plate 602 to form a circulation, and the grinding will be repeated in this way to ensure the grinding effect. However, since the malt contains sugar and other substances, it will adhere to the inner wall of the grinding box 6. Therefore, an air blowing head 604 is also provided. The air outlet direction of the air blowing head 604 is toward the inclined baffle 601, which can blow the adhered malt raw materials away from the adhesion.

[0061] The grinding box 6 is mounted above the collection box 7. The bottom of the grinding box 6 is mounted above the collection box 7 via multiple spring supports 12. The top ends of the spring supports 12 only contact the bottom of the grinding box 6 and are not fixedly connected. The bottom of the grinding box 6 is provided with a plurality of leak holes, through which the raw materials processed by the grinding box 6 enter the collection box 7. The bottom of the grinding box 6 is mounted above the collection box 7 via multiple spring supports 12. The top ends of the spring supports 12 only contact the bottom of the grinding box 6 and are not fixedly connected. Because the rotation of the grinding box 6 generates slight vibration, the spring supports 12 not only provide support but also enhance the vibration effect, preventing the malt in the grinding box 6 from falling due to the vibration, reducing the possibility of adhesion.

[0062] The transmission rod 14 passes through the collecting box 7 and is fixedly connected to the grinding box 6, and the transmission rod 14 is placed on a section inside the collecting box 7 and fixedly installed on the stirring rod 13. A discharge port 16 is opened on one side of the lower end of the collecting box 7. The stirring rod 13 is used to keep the air in the entire collecting box 7 in a flowing state, reducing the possibility of maltose adhesion, and the stirring rod 13 is synchronously driven by the transmission rod 14 to achieve multiple utilizations through one structure.

[0063] The belt transmission structure includes a first pulley 909, a second pulley 912, a belt 910, and a belt transmission shaft. The worm gear transmission structure includes a worm 1 and a worm; a second pulley 912, the first pulley 909 is fixedly mounted on the first transmission shaft, the second pulley 912 is fixedly mounted on the end of the worm 911, the first pulley 909 and the second pulley 912 are driven by a belt, the head end of the worm 91 is engaged with the worm wheel 15, and the worm wheel 15 is fixedly mounted on the bottom end of the transmission rod 14.

[0064] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A raw material crushing device for craft beer production, characterized in that: It includes a base, a transmission assembly, a feeding box, a crushing assembly and a grinding assembly; The transmission assembly, crushing assembly and grinding assembly are all installed on the base; The transmission assembly includes a housing, and a drive motor, an output shaft, an output gear, a first transmission shaft, a second transmission shaft, a first transmission gear, a second transmission gear, a third transmission gear, a first coupling, a second coupling and a belt transmission structure installed in the housing; The interior of the box is hollow, one end of the drive motor is transmission-connected to the output shaft, the end of the output shaft is fixedly connected to the output gear, the output gear is externally meshed with the first transmission gear, and the first transmission gear and the second transmission gear are fixedly mounted on the first transmission shaft, the end of the first transmission shaft is connected to the belt transmission structure through a first coupling, the second transmission gear is externally meshed with the third transmission gear, and the third transmission gear is fixedly mounted on the second transmission shaft; The second transmission shaft is connected to the crushing roller via a second coupling, and the crushing roller is placed in a crushing box, a horizontally arranged cylindrical crushing cavity is provided in the crushing box, a feed box is provided at the top of the head end of the crushing box, and the feed box and the second coupling are provided at the same end of the crushing box, and the end of the crushing box is connected to the second crushing box via a discharge pipe; The crushing roller is a spiral roller, and the outer diameter of the spiral roller gradually increases from the head end to the tail end. The tail end of the crushing roller is connected to a first grinding head, and the outer surface of the first grinding head is provided with a plurality of first grinding protrusions. The inner surface of the tail end of the crushing cavity is also provided with a plurality of second grinding protrusions, and the first grinding protrusions and the second grinding protrusions are staggered. The end of the crushing box is connected to the discharge pipe through a first screen plate, and the first screen plate is provided with a plurality of first screen holes, and the first screen holes connect the crushing cavity with the discharge pipe; The end of the discharge pipe is connected to a grinding assembly, and the grinding assembly is driven by a belt transmission structure.

2. The raw material crushing device for craft beer production according to claim 1, characterized in that: The grinding assembly includes a grinding box, grinding balls, a collecting box and a worm gear transmission structure; The grinding box has an opening at the top, and the opening is covered by a cover. A feed port is provided eccentrically on the cover, and the feed port is connected to a discharge pipe. The center of the cover is connected to the grinding balls via a connecting rod, and one end of the connecting rod is placed outside the cover, and the other end of the connecting rod is placed inside the grinding box. One end of the cover is fixed by a support rod, and the support rod is installed on the base; A grinding space is formed in the grinding box by a curved grinding plate and two mirror-symmetrically arranged oblique baffles, one end of the two oblique baffles is connected to the top interior of the grinding box, and the other ends of the two oblique baffles are inclined downward and respectively connected to the two ends of the curved grinding plate. The curved grinding plate is provided with a plurality of second sieve holes, and the aperture of the second sieve holes is smaller than the aperture of the first sieve holes. The bottom of the grinding ball is placed in the arc-shaped grinding plate, and the bottom of the grinding ball is evenly distributed with grinding teeth. A transmission rod passes through the center of the bottom of the grinding box, and the grinding box is fixedly connected to the transmission rod. The transmission rod passes through the collection box and is connected to the worm gear transmission structure. The worm gear transmission structure is driven by a belt transmission structure. A cavity is provided inside the connecting rod, and a blowing head is connected to the middle of the connecting rod. The blowing head is arranged obliquely relative to the connecting rod, and the air outlet direction of the blowing head is toward the oblique baffle. The cavity of the connecting rod is connected to the blowing head, and an external ventilation structure is connected to the top of the connecting rod.

3. The raw material crushing device for craft beer production according to claim 2, characterized in that: The grinding box is installed above the collecting box, and the bottom of the grinding box is installed above the collecting box through a plurality of spring supports, and the top ends of the plurality of spring supports only contact the bottom of the grinding box and are not fixedly connected. A plurality of leakage holes are opened at the bottom of the grinding box, and the raw materials processed by the grinding box enter the collecting box through the leakage holes.

4. The raw material crushing device for craft beer production according to claim 3, characterized in that: The transmission rod passes through the collecting box and is fixedly connected to the grinding box. The transmission rod is placed on a section inside the collecting box and is fixedly installed on the stirring rod. A discharge port is opened on one side of the lower end of the collecting box.

5. The raw material crushing device for craft beer production according to claim 4, characterized in that: The belt transmission structure includes a first pulley, a second pulley, a belt, and a belt transmission shaft. The worm gear transmission structure includes a worm gear and a worm gear. The first pulley is fixedly mounted on the first transmission shaft, and the second pulley is fixedly mounted on the end of the worm gear. The first pulley and the second pulley are driven by a belt. The head end of the worm gear is engaged with the worm gear, and the worm gear is fixedly mounted on the bottom end of the transmission rod.

6. The raw material grinding device for craft beer production according to claim 5, characterized in that: The middle outer portion of the crushing box is fixedly connected to the support rod through a hoop, and one end of the outer side of the cover body is provided with a support ear, which is fixedly connected to the support rod.

7. The raw material grinding device for craft beer production according to claim 6, characterized in that: The grinding teeth at the bottom of the grinding balls are all pointed toward the arc-shaped grinding plate.

8. The raw material crushing device for craft beer production according to claim 7, characterized in that: The number of teeth of the first transmission gear, the second transmission gear and the second transmission gear are all inconsistent.

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