A multi-directional stirring device for a meat emulsion fermenter

Abstract

The utility model discloses a kind of minced meat fermentation tank multidirectional stirring devices, relate to minced meat processing technical field, including fermentation tank, servo motor is installed in fermentation tank side, two symmetrical distribution's stirring shafts along the middle part of fermentation tank are installed in fermentation tank, multiple equidistant distribution's stirring rod are integrally formed on two stirring shafts;Driving mechanism and free shaft transmission mechanism are also installed in fermentation tank, free shaft transmission mechanism is provided with two groups and is respectively connected with two stirring shaft transmission, servo motor is driven two stirring shafts rotation by driving mechanism and free shaft transmission mechanism;Two stirring shafts are all inclined to set, and one end of two stirring shafts is fixedly sleeved with driven wheel, the utility model is set by driving mechanism and free shaft transmission mechanism, so that multiple stirring rods on two stirring shafts can carry out all-around disturbance to minced meat in fermentation tank, greatly improve mixing stirring effect and efficiency.

Description

Technical Field

[0001] This utility model relates to the field of meat processing technology, and in particular to a multi-directional stirring device for a meat fermentation tank. Background Technology

[0002] Meat fermentation is a technique that utilizes microorganisms or enzymes to cause biochemical and physical changes in meat, thereby improving its texture, flavor, and safety. During fermentation, microorganisms such as lactic acid bacteria, staphylococci, and yeasts play a crucial role. They lower the pH of the meat by producing lactic acid, enzymes, and other metabolites, improving flavor and texture while inhibiting the growth of spoilage bacteria.

[0003] During the fermentation of minced meat, the minced meat needs to be stirred and agitated with microorganisms or enzymes in the fermentation tank to ensure that the minced meat and microorganisms or enzymes are mixed evenly, thereby achieving the purpose of uniform fermentation and avoiding local fermentation differences that would lead to poor fermentation results.

[0004] Existing fermentation tanks mostly rely on manual stirring or a single stirring blade for mixing, but the mixing efficiency is low and the direction of disturbance during stirring is usually relatively unidirectional, making it difficult to evenly agitate the minced meat at the bottom of the tank, resulting in poor mixing effect. Therefore, a multi-directional stirring device for minced meat fermentation tanks is needed. Utility Model Content

[0005] The purpose of this application is to provide a multi-directional stirring device for a meat fermentation tank to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this application provides the following technical solution: a multi-directional stirring device for a meat fermentation tank, comprising a fermentation tank, a servo motor installed on one side of the fermentation tank, and two stirring shafts symmetrically distributed vertically along the middle of the fermentation tank installed inside the fermentation tank, with multiple equidistant stirring rods integrally formed on each of the two stirring shafts;

[0007] The fermenter is also equipped with a drive mechanism and a free shaft transmission mechanism. There are two sets of free shaft transmission mechanisms, which are respectively connected to the two stirring shafts. The servo motor drives the two stirring shafts to rotate through the drive mechanism and the free shaft transmission mechanism.

[0008] Both stirring shafts are inclined, and a driven wheel is fixedly fitted at one end of each stirring shaft that is in contact with the inner side of the fermenter. The driven wheel rolls in contact with the inner wall of the fermenter.

[0009] Preferably, the drive mechanism includes a drive shaft, a reversing bevel gear set, and a speed-changing transmission gear set;

[0010] The drive shaft is fixed to the output shaft of the servo motor. The reversing bevel gear set includes three meshing bevel gears. One bevel gear is fixedly sleeved on the drive shaft, and the other two bevel gears are both set perpendicular to one of the bevel gears, and the other two bevel gears are distributed vertically in a mirror image.

[0011] The variable speed transmission gear set is provided with two sets, which are respectively connected to two reversing bevel gear sets through rotating shaft transmission. The two sets of variable speed transmission gear sets are respectively connected between the input ends of the two bevel gears and the two sets of free shaft transmission mechanisms.

[0012] Preferably, the free shaft transmission mechanism includes a transmission ball, a transmission claw, and a ball bearing. The spherical surface of the transmission ball is provided with a first groove. One end of the transmission ball is fixed with a first transmission shaft that is fixed to one of the gears in the speed transmission gear set. The transmission claw is an arc-shaped claw that holds the transmission ball. The transmission claw is provided with a second groove that matches the first groove. The middle part of the transmission claw is fixed with a second transmission shaft that is fixed to the stirring shaft.

[0013] The balls are rolled and embedded in the first groove, and the ends of the balls are rolled and embedded in the second groove.

[0014] Preferably, each set of variable speed transmission gears includes a first gear and a second gear, the first gear and the second gear have different diameters. In one set of variable speed transmission gears, the first gear is fixed to the first drive shaft, and the second gear is coaxially driven with one of the bevel gears; in another set of variable speed transmission gears, the first gear is coaxially driven with another bevel gear, and the second gear is fixed to the first drive shaft.

[0015] Preferably, the lengths of the multiple stirring rods on the two stirring shafts increase sequentially from the end closest to the driven wheel to the other end;

[0016] A disturbance impeller assembly is fixedly sleeved on the drive shaft. The disturbance blades of the disturbance impeller assembly are twisted and form an angle with the horizontal plane.

[0017] Preferably, a mounting box is fixed in the middle of the fermenter by a bracket. The mounting box is located outside the reversing bevel gear set, the speed transmission gear set and one end of the drive shaft. The drive shaft is rotatably connected to the mounting box. One end of the first transmission shaft rotatably passes through the mounting box and extends into the interior of the mounting box. Isolation covers are installed at both the upper and lower ends of the mounting box. The isolation covers are located outside the free shaft transmission mechanism.

[0018] Preferably, the isolation cover includes a fixed cover and a rotating cover. The fixed cover is fixed to the mounting box, and the rotating cover is rotatably connected to the fixed cover. A sealing ring is rotatably sleeved on the outside of the connection between the rotating cover and the fixed cover.

[0019] The rotation axis of the rotating cover is aligned with the axis of the first drive shaft, and the second drive shaft rotates through the rotating cover.

[0020] In summary, the technical effects and advantages of this utility model are as follows:

[0021] 1. In this utility model, by setting up a drive mechanism and a free shaft transmission mechanism, after the servo motor is started, the servo motor drives the two stirring shafts to rotate through the drive mechanism and the two free shaft transmission mechanisms. When the two stirring shafts rotate, they also make a circular motion inside the fermentation tank under the action of the driven wheel. That is, the stirring shafts rotate along their own axis and also rotate along the axis of the free shaft transmission mechanism, so that the multiple stirring rods on the two stirring shafts can agitate the meat paste in the fermentation tank in all directions, which greatly improves the mixing effect and efficiency.

[0022] 2. In this utility model, by setting the two sets of variable speed transmission gears to different output efficiencies, the rotation speeds of the two first transmission shafts are different, which in turn makes the rotation speeds of the two stirring shafts different. The stirring rods on the stirring shafts with different rotation speeds have different disturbance effects on the minced meat, resulting in the minced meat in the fermentation tank forming two different mixing effects in the upper and lower parts. Furthermore, since the rotation speeds of the two stirring shafts are different when they rotate around the first transmission shaft, the two parts of minced meat with different mixing effects will have different movement speeds when disturbed. The two parts of minced meat with different movement speeds will generate relative mixing flow in the fermentation tank, thereby making the minced meat produce a more uniform mixing effect when stirring and mixing. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the three-dimensional structure in this embodiment;

[0025] Figure 2 This is a cross-sectional view of the fermenter in this embodiment;

[0026] Figure 3 This is a schematic diagram of the stirring shaft, the disturbance impeller assembly, the mounting box, and the isolation cover in this embodiment.

[0027] Figure 4 This is a schematic diagram of the drive mechanism and free shaft transmission mechanism in cross-section view of the mounting box and isolation cover in this embodiment;

[0028] Figure 5 This is a schematic diagram of the free shaft transmission mechanism in this embodiment.

[0029] In the diagram: 1. Fermentation tank; 2. Servo motor; 3. Stirring shaft; 31. Stirring rod; 32. Driven wheel; 4. Drive mechanism; 41. Drive shaft; 42. Reversing bevel gear set; 43. Variable speed transmission gear set; 5. Free shaft transmission mechanism; 51. Transmission ball; 511. First groove; 512. First transmission shaft; 52. Transmission claw; 521. Second groove; 522. Second transmission shaft; 53. Ball bearing; 6. Disturbance impeller assembly; 7. Sealing ring; 8. Mounting box; 9. Isolation cover; 91. Fixed cover; 92. Rotating cover. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Example: Reference Figures 1-5 The multi-directional stirring device for a meat fermentation tank shown includes a fermentation tank 1, a servo motor 2 installed on one side of the fermentation tank 1, and two stirring shafts 3 symmetrically distributed vertically along the middle of the fermentation tank 1 inside the fermentation tank 1. Each of the two stirring shafts 3 has a plurality of equally spaced stirring rods 31 integrally formed on it.

[0032] Fermentation tank 1 is also equipped with a drive mechanism 4 and a free shaft transmission mechanism 5. The free shaft transmission mechanism 5 is provided in two sets and is respectively connected to the two stirring shafts 3. The servo motor 2 drives the two stirring shafts 3 to rotate through the drive mechanism 4 and the free shaft transmission mechanism 5.

[0033] Both stirring shafts 3 are inclined, and a driven wheel 32 is fixedly fitted on one end of each stirring shaft 3 that is in contact with the inner side of the fermentation tank 1. The driven wheel 32 rolls and fits against the inner wall of the fermentation tank 1.

[0034] Based on the above structure, after the servo motor 2 is started, the servo motor 2 drives the two stirring shafts 3 to rotate through the drive mechanism 4 and the two free shaft transmission mechanisms 5. When the two stirring shafts 3 rotate, they also make circular motions inside the fermentation tank 1 under the action of the driven wheel 32. That is, the stirring shafts 3 rotate along their own axis and also rotate along the axis of the free shaft transmission mechanism 5 (coaxial with the fermentation tank 1). This allows the multiple stirring rods 31 on the two stirring shafts 3 to disturb the meat paste in the fermentation tank 1 in all directions, which greatly improves the mixing effect and efficiency.

[0035] Furthermore, the drive mechanism 4 includes a drive shaft 41, a reversing bevel gear set 42, and a speed-changing transmission gear set 43;

[0036] The drive shaft 41 is fixed to the output shaft of the servo motor 2. The reversing bevel gear set 42 includes three meshing bevel gears. One bevel gear is fixedly sleeved on the drive shaft 41, and the other two bevel gears are both perpendicular to one of the bevel gears, and the other two bevel gears are distributed vertically in a mirror image.

[0037] The transmission gear set 43 is provided with two sets and is respectively connected to two reversing bevel gear sets 42 via rotating shafts. The two sets of transmission gear sets 43 are respectively connected between the two bevel gears and the input ends of the two sets of free shaft transmission mechanisms 5.

[0038] Furthermore, the free shaft transmission mechanism 5 includes a transmission ball 51, a transmission claw 52, ​​and a ball 53. The spherical surface of the transmission ball 51 is provided with a first groove 511. One end of the transmission ball 51 is fixed with a first transmission shaft 512 that is fixed to one of the gears of the speed transmission gear set 43. The transmission claw 52 is an arc-shaped claw that hugs the transmission ball 51. The transmission claw 52 is provided with a second groove 521 that is adapted to the first groove 511. The middle part of the transmission claw 52 is fixed with a second transmission shaft 522 that is fixed to the stirring shaft 3.

[0039] The ball 53 is rolled and embedded in the first groove 511, and the end of the ball 53 is rolled and embedded in the second groove 521.

[0040] The output shaft of the servo motor 2 drives the drive shaft 41 to rotate. The drive shaft 41 drives two sets of variable speed transmission gears 43 to rotate through the reversing bevel gear set 42, thereby driving the two first transmission shafts 512 to rotate. When the two first transmission shafts 512 rotate, they drive the transmission claws 52 to rotate through the transmission balls 51 and the ball bearings 53, thereby causing the two second transmission shafts 522 to rotate, ultimately achieving the purpose of driving the two stirring shafts 3 to rotate.

[0041] Furthermore, each set of transmission gears 43 includes a first gear and a second gear. The diameters of the first gear and the second gear are different. In one set of transmission gears 43, the first gear is fixed to the first transmission shaft 512, and the second gear is coaxially driven with one of the bevel gears. In another set of transmission gears 43, the first gear is coaxially driven with another bevel gear, and the second gear is fixed to the first transmission shaft 512.

[0042] By setting the two sets of variable speed transmission gear sets 43 to different output efficiencies, the rotation speeds of the two first transmission shafts 512 are different, which in turn causes the rotation speeds of the two stirring shafts 3 to be different. The stirring rods 31 on the stirring shafts 3 with different rotation speeds have different disturbance effects on the minced meat, resulting in different mixing effects between the upper and lower parts of the minced meat in the fermentation tank 1 (the stirring rod 31 with a slower rotation speed fully disturbs the minced meat, making the mixing more thorough but slower, while the stirring rod 31 with a faster rotation speed mixes the minced meat faster, but the mixing is less thorough). Since the rotation speeds of the two stirring shafts 3 around the first transmission shaft 512 are also different when their rotation speeds are different, the two parts of minced meat with different mixing effects will have different movement speeds when disturbed. The two parts of minced meat with different movement speeds will generate relative mixing flow in the fermentation tank 1, resulting in a more uniform mixing effect when the minced meat is stirred and mixed.

[0043] Furthermore, the lengths of the multiple stirring rods 31 on the two stirring shafts 3 all increase sequentially from one end closer to the driven wheel 32 to the other end;

[0044] A disturbance impeller assembly 6 is fixedly sleeved on the drive shaft 41. The disturbance blades of the disturbance impeller assembly 6 are twisted and form an angle with the horizontal plane.

[0045] By setting the length of multiple stirring rods 31 to increase sequentially, the multiple stirring rods 31 can work together to form a disturbance structure that works in conjunction with the fermentation tank 1, thereby better disturbing the minced meat.

[0046] In addition, when the drive shaft 41 rotates, it can also drive the disturbance impeller group 6 to rotate, thereby disturbing the meat paste vertically, promoting the mixing efficiency of the upper and lower parts of the meat paste, achieving a better mixing effect, and making it more conducive to the uniform fermentation of the mixed meat paste.

[0047] Furthermore, a mounting box 8 is fixed in the middle of the fermenter 1 by a bracket. The mounting box 8 is covered outside the reversing bevel gear set 42, the speed transmission gear set 43 and one end of the drive shaft 41. The drive shaft 41 is rotatably connected to the mounting box 8. One end of the first transmission shaft 512 rotatably passes through the mounting box 8 and extends into the interior of the mounting box 8. Isolation covers 9 are installed at both the upper and lower ends of the mounting box 8. The isolation covers 9 are covered outside the free shaft transmission mechanism 5.

[0048] By installing the housing 8 and the isolation cover 9, the drive mechanism 4 and the free shaft transmission mechanism 5 can be isolated from the minced meat. This achieves the purpose of agitating the minced meat while ensuring the safety of the drive mechanism 4 and the free shaft transmission mechanism 5, preventing them from directly contacting and contaminating the minced meat or being blocked or damaged by the minced meat.

[0049] Furthermore, the isolation cover 9 includes a fixed cover 91 and a rotating cover 92. The fixed cover 91 is fixed to the mounting box 8, and the rotating cover 92 is rotatably connected to the fixed cover 91. A sealing ring 7 is rotatably sleeved on the outside of the connection between the rotating cover 92 and the fixed cover 91.

[0050] The rotation axis of the rotating cover 92 is aligned with the axis of the first transmission shaft 512. The second transmission shaft 522 rotates through the rotating cover 92, and the rotating cover 92 can rotate with the rotation of the second transmission shaft 522. Thus, while providing isolation, it satisfies the requirement for the second transmission shaft 522 to rotate around the axis of the first transmission shaft 512.

[0051] The working principle of this utility model is as follows: In daily use, after the servo motor 2 is started, the servo motor 2 drives the two stirring shafts 3 to rotate through the drive mechanism 4 and the two free shaft transmission mechanisms 5. Specifically, the output shaft of the servo motor 2 drives the drive shaft 41 to rotate. The drive shaft 41 drives the two sets of variable speed transmission gears 43 to rotate through the reversing bevel gear set 42, thereby driving the two first transmission shafts 512 to rotate. When the two first transmission shafts 512 rotate, they drive the transmission claws 52 to rotate through the transmission balls 51 and the ball bearings 53, thereby causing the two second transmission shafts 522 to rotate, ultimately achieving the purpose of driving the two stirring shafts 3 to rotate. When the two stirring shafts 3 rotate, they also make a circular motion along the fermentation tank 1 under the action of the driven wheel 32. That is, the stirring shafts 3 rotate along their own axis and also rotate along the axis of the free shaft transmission mechanism 5, so that the multiple stirring rods 31 on the two stirring shafts 3 can agitate the meat paste in the fermentation tank 1 in all directions, greatly improving the mixing effect and efficiency.

[0052] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multi-directional stirring device for a meat fermentation tank, comprising a fermentation tank (1), a servo motor (2) installed on one side of the fermentation tank (1), and two stirring shafts (3) symmetrically distributed vertically along the middle of the fermentation tank (1) installed inside the fermentation tank (1), each of the two stirring shafts (3) having a plurality of equally spaced stirring rods (31) integrally formed thereon, characterized in that: The fermenter (1) is also equipped with a drive mechanism (4) and a free shaft transmission mechanism (5). The free shaft transmission mechanism (5) is provided in two sets and is respectively connected to the two stirring shafts (3). The servo motor (2) drives the two stirring shafts (3) to rotate through the drive mechanism (4) and the free shaft transmission mechanism (5). Both stirring shafts (3) are inclined, and a driven wheel (32) is fixedly fitted at one end of each stirring shaft (3) that is in contact with the inner side of the fermentation tank (1). The driven wheel (32) rolls and fits against the inner wall of the fermentation tank (1).

2. The multi-directional stirring device for a meat fermentation tank according to claim 1, characterized in that: The drive mechanism (4) includes a drive shaft (41), a reversing bevel gear set (42), and a speed-changing transmission gear set (43); The drive shaft (41) is fixed to the output shaft of the servo motor (2). The reversing bevel gear set (42) includes three meshing bevel gears. One of the bevel gears is fixedly sleeved on the drive shaft (41), and the other two bevel gears are arranged perpendicular to one of the bevel gears, and the other two bevel gears are distributed vertically in a mirror image. The variable speed transmission gear set (43) is provided with two sets and is respectively connected to two reversing bevel gear sets (42) via rotating shaft transmission. The two sets of variable speed transmission gear sets (43) are respectively connected to the input ends of the two bevel gears and the two sets of free shaft transmission mechanisms (5).

3. The multi-directional stirring device for a meat fermentation tank according to claim 2, characterized in that: The free shaft transmission mechanism (5) includes a transmission ball (51), a transmission claw (52), and a ball (53). The spherical surface of the transmission ball (51) is provided with a first groove (511). One end of the transmission ball (51) is fixed with a first transmission shaft (512) that is fixed to one of the gears of the speed transmission gear set (43). The transmission claw (52) is an arc-shaped claw that hugs the transmission ball (51). The transmission claw (52) is provided with a second groove (521) that is adapted to the first groove (511). The middle part of the transmission claw (52) is fixed with a second transmission shaft (522) that is fixed to the stirring shaft (3). The ball (53) is rolled and embedded in the first groove (511), and the end of the ball (53) is rolled and embedded in the second groove (521).

4. The multi-directional stirring device for a meat fermentation tank according to claim 3, characterized in that: Each set of the variable transmission gear group (43) includes a gear one and a gear two. The diameters of the gear one and the gear two are different. In one set of the variable transmission gear group (43), the gear one is fixed to the first transmission shaft (512), and the gear two is coaxially driven with one of the bevel gears. In the other set of the variable transmission gear group (43), the gear one is coaxially driven with another bevel gear, and the gear two is fixed to the first transmission shaft (512).

5. The multi-directional stirring device for a meat fermentation tank according to claim 2, characterized in that: The lengths of the multiple stirring rods (31) on the two stirring shafts (3) all increase sequentially from one end closer to the driven wheel (32) to the other end; A disturbance impeller assembly (6) is fixedly sleeved on the drive shaft (41), and the disturbance blades of the disturbance impeller assembly (6) are twisted and form an angle with the horizontal plane.

6. The multi-directional stirring device for a meat fermentation tank according to claim 3, characterized in that: The fermenter (1) is fixed in the middle by a bracket and the mounting box (8) is covered outside the reversing bevel gear set (42), the speed transmission gear set (43) and one end of the drive shaft (41). The drive shaft (41) is rotatably connected to the mounting box (8). One end of the first transmission shaft (512) rotatably passes through the mounting box (8) and extends into the interior of the mounting box (8). The mounting box (8) is equipped with isolation covers (9) at both the upper and lower ends. The isolation covers (9) are covered outside the free shaft transmission mechanism (5).

7. The multi-directional stirring device for a meat fermentation tank according to claim 6, characterized in that: The isolation cover (9) includes a fixed cover (91) and a rotating cover (92). The fixed cover (91) is fixed to the mounting box (8). The rotating cover (92) is rotatably connected to the fixed cover (91). A sealing ring (7) is rotatably sleeved on the outside of the connection between the rotating cover (92) and the fixed cover (91). The rotation axis of the rotating cover (92) is aligned with the axis of the first transmission shaft (512), and the second transmission shaft (522) rotates through the rotating cover (92).

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