A multi-stage crushing mechanism and probiotic fermentation device

Abstract

The present invention relates to the technical field of probiotic fermentation, and discloses a multi-stage crushing mechanism and a probiotic fermentation device, wherein a primary crushing member and a secondary crushing member are sequentially arranged from top to bottom inside the feeding hopper; a tertiary crushing member and a conveying mechanism driven by the tertiary crushing member are arranged inside the rear cavity; a turntable driven by the tertiary crushing member is also arranged at the front end of the partition plate, the primary crushing member and the secondary crushing member are used to crush the raw materials put into the feeding hopper, the tertiary crushing member is used to crush the raw materials falling into the rear cavity, and the extrusion disk reciprocates back and forth to crush the raw materials between the turntable and the extrusion disk. The present invention can synchronously drive the primary crushing member, the secondary crushing member, the tertiary crushing member, the conveying mechanism, the turntable and the extrusion disk to work by only one set of motors, and realize multiple crushing of the raw materials, and the crushing effect on the raw materials is obvious, thereby improving the crushing efficiency of the raw materials.

Description

Technical Field

[0001] The invention relates to the technical field of probiotic fermentation, in particular to a multi-stage crushing mechanism and a probiotic fermentation device. Background Art

[0002] There are many kinds of raw materials for probiotic fermentation. Most of the raw materials need to be crushed before probiotic fermentation to achieve sufficient probiotic fermentation after the raw materials are crushed. However, the common raw material crushing mechanism only crushes once, crushes multiple times in a single way, or crushes multiple crushing devices in sequence, resulting in unsatisfactory crushing effect on the raw materials. For this reason, we have introduced a multi-stage crushing mechanism and a probiotic fermentation device. Summary of the invention

[0003] The object of the present invention is to provide a multi-stage crushing mechanism and a probiotic fermentation device to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A multi-stage crushing mechanism comprises a tank body, the top of the rear end of the tank body is connected with a feeding hopper, and the inside of the feeding hopper is provided with a primary crushing piece and a secondary crushing piece in sequence from top to bottom;

[0006] The tank body is provided with a front cavity and a rear cavity distributed front and back through a partition, the front end of the front cavity is connected with the opening of the front end of the tank body, and the rear cavity is provided with a three-stage crushing piece and a conveying mechanism driven by the three-stage crushing piece;

[0007] The front end of the partition is also provided with a rotating disk driven by a three-stage crushing element, and the interior of the front cavity is provided with an extrusion disk;

[0008] The tertiary crushing element is driven by the motor, and the secondary crushing element drives the primary crushing element through the driving mechanism. The secondary crushing element realizes the reciprocating movement of the extrusion disk in the front cavity through the connecting piece.

[0009] The primary crushing parts and the secondary crushing parts are used to crush the raw materials put into the feeding hopper, the tertiary crushing parts are used to crush the raw materials falling into the rear cavity, and the conveying mechanism is used to convey the raw materials crushed by the tertiary crushing parts to between the turntable and the partition. The rotation of the turntable is used to crush the raw materials between the turntable and the partition, and also to convey the raw materials between the turntable and the partition to between the turntable and the extrusion plate. The extrusion plate reciprocates back and forth to crush the raw materials between the turntable and the extrusion plate.

[0010] Preferably, the feeding hopper includes a feeding pipe fixed to the top of the rear end of the tank body and a hopper on the top of the feeding pipe;

[0011] A grinding chamber is provided at the lower side of the feeding pipe, and a trumpet feeding port connected to the hopper is connected in the middle of the top of the grinding chamber through a vertical channel;

[0012] An upper cavity and a lower cavity are formed on the outer wall of the front end of the feed pipe through a horizontal platform, and a horizontal annular groove is provided on the inner wall of the vertical channel, and the upper cavity and the horizontal annular groove are connected.

[0013] Preferably, the primary crushing member comprises a first extrusion gear and a second extrusion gear movably connected in a horizontal annular groove through a vertical shaft, and the inner sides of the first extrusion gear and the second extrusion gear extend into the vertical channel and mesh with each other;

[0014] The secondary crushing member includes a horizontal shaft inside the crushing chamber and a first crushing blade fixed on the horizontal shaft;

[0015] The driving mechanism includes a worm fixed on a horizontal axis, a worm wheel meshing with the worm, and a driving gear fixed on the top of the worm wheel through a driving shaft. The worm and the worm are located in a lower cavity, the middle part of the driving shaft passes through the horizontal platform, the driving gear is located in an upper cavity, and the driving gear is meshed with a first extrusion gear.

[0016] Preferably, the motor is fixed on a bracket at the rear end of the tank body, and the three-stage crushing element includes a middle horizontal rotating shaft arranged in the rear cavity and side horizontal rotating shafts located on both sides of the middle horizontal rotating shaft, and the middle horizontal rotating shaft and the side horizontal rotating shaft are both provided with a second crushing blade;

[0017] The rear end of the intermediate horizontal rotating shaft extends out of the tank body and is fixed with a first gear and a first pulley, and the motor shaft at the output end of the motor passes through the bracket and is fixedly connected to the rear end of the intermediate horizontal rotating shaft;

[0018] The rear end of the horizontal shaft passes through the feed pipe and is fixedly connected to a second pulley, and the second pulley is connected to the first pulley through a belt;

[0019] A second gear is fixed to the rear end of the side horizontal rotating shaft after passing through the tank body, and two sets of second gears are meshed with both sides of the first gear;

[0020] The front end of the side horizontal rotating shaft extends into the shaft hole at the rear end of the partition, and the front end of the middle horizontal rotating shaft passes through the middle part of the partition and is fixedly connected to the middle part of the rear end of the turntable.

[0021] The rotating disk is provided with a material leakage slot.

[0022] Preferably, the conveying mechanism includes an auger arranged in the rear cavity, the auger is located directly below the middle horizontal rotating shaft, and the auger shaft fixed at the rear end of the auger penetrates the tank body and is fixed with a third gear, and the third gear is meshed with the lower end of the first gear;

[0023] A U-shaped slot is provided at the bottom of the partition, and the front end of the auger extends into the U-shaped slot.

[0024] Preferably, the connecting member comprises an inclined plate fixedly connected to the front end of the horizontal shaft after passing through the feed pipe, a piston rod fixed to the middle of the front end of the extrusion plate, a vertical rod fixed after the piston rod extends out of the front cavity, a moving rod fixed to the top of the vertical rod, and a U-shaped seat fixed to the front end of the moving rod;

[0025] The U-shaped seat is clamped on the side of the tilting plate, a limiting cylinder is fixed on the top of the front end of the tank body, and the moving rod extends through the middle of the limiting cylinder.

[0026] In addition, in order to achieve the above-mentioned purpose, the present invention also provides a probiotic fermentation device, including the multi-stage crushing mechanism.

[0027] Compared with the prior art, the beneficial effects of the present invention are as follows: the primary crushing parts and the secondary crushing parts of the present invention are used to crush the raw materials put into the feeding hopper, the tertiary crushing parts are used to crush the raw materials falling into the rear cavity, and the conveying mechanism is used to convey the raw materials crushed by the tertiary crushing parts to between the turntable and the partition, the rotation of the turntable is used to crush the raw materials between the turntable and the partition, and also to convey the raw materials between the turntable and the partition to between the turntable and the extrusion plate, and the extrusion plate reciprocates back and forth to crush the raw materials between the turntable and the extrusion plate.

[0028] The present invention can synchronously drive the primary crushing parts, the secondary crushing parts, the tertiary crushing parts, the conveying mechanism, the turntable and the extrusion disk to work through only one set of motors, and realize multiple crushing of the raw materials, which has obvious crushing effect on the raw materials and improves the crushing efficiency of the raw materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0030] Figure 2 It is a schematic diagram of the exploded structure of the present invention in which the primary crushing member, the secondary crushing member and the driving mechanism are connected and then connected to the extrusion disk through a connecting member;

[0031] Figure 3 It is a cross-sectional structural diagram of the connection between the primary crushing member, the secondary crushing member, the driving mechanism and the feed pipe of the present invention;

[0032] Figure 4 It is a schematic cross-sectional view of the feeding hopper of the present invention;

[0033] Figure 5 It is a schematic diagram of a top view of the structure after the first extrusion gear and the second extrusion gear are connected in the present invention;

[0034] Figure 6It is a schematic diagram of the exploded structure of the connection between the three-stage crushing parts, the conveying mechanism, the partition and the turntable of the present invention;

[0035] Figure 7 This is a schematic diagram of the exploded structure of the motor-driven three-stage crushing parts, conveying mechanism and turntable of the present invention;

[0036] Figure 8 It is a schematic cross-sectional view of the connection between the tank body, the extrusion plate, the rotating plate, the intermediate horizontal rotating shaft and the auger of the present invention.

[0037] In the figure: 1. hopper; 2. end cover; 3. feed pipe; 101. trumpet feeding port; 102. horizontal annular groove; 103. vertical channel; 104. crushing chamber; 105. horizontal platform; 106. upper chamber; 107. lower chamber; 4. U-shaped seat; 5. tilting plate; 6. limit cylinder; 7. moving rod; 8. vertical rod; 9. piston rod; 10. front chamber; 11. tank; 110. leakage port; 111. rear chamber; 12. bearing seat; 13. bracket; 14. motor; 15. first pulley; 16. belt; 17. second pulley; 18. base; 181. vertical discharge port; 19. twist Dragon; 20, auger shaft; 21, first bearing; 22, third gear; 23, turntable; 231, convex block; 232, leakage slot; 24, extrusion plate; 25, second bearing; 26, worm; 27, horizontal axis; 28, first crushing blade; 29, worm wheel; 30, drive shaft; 31, third bearing; 32, drive gear; 33, first extrusion gear; 34, second extrusion gear; 35, vertical axis; 36, second gear; 37, first gear; 38, side horizontal shaft; 39, second crushing blade; 40, middle horizontal shaft; 44, partition; 441, convex plate; 442, U-shaped slot. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] See also Figure 1-8 , the present invention provides a technical solution:

[0040] Embodiment 1:

[0041] A multi-stage crushing mechanism comprises a tank body 11, a feeding hopper is connected to the top of the rear end of the tank body 11, and the feeding hopper comprises a feeding pipe 3 fixed to the top of the rear end of the tank body 11 and a hopper 1 on the top of the feeding pipe 3;

[0042] A crushing chamber 104 is provided at the lower side of the inner part of the feeding pipe 3, and a trumpet-shaped feeding port 101 connected to the hopper 1 is connected to the middle of the top of the crushing chamber 104 through a vertical channel 103; the trumpet-shaped feeding port 101 is arranged so that after the raw materials are put into the hopper 1, the raw materials can fall to the trumpet-shaped feeding port 101 quickly under the action of their own gravity, so that when the first extrusion gear 33 and the second extrusion gear 34 rotate subsequently, the raw materials in the trumpet-shaped feeding port 101 are squeezed and crushed;

[0043] An upper cavity 106 and a lower cavity 107 are formed on the outer wall of the front end of the feed pipe 3 through a horizontal platform 105, and a horizontal annular groove 102 is provided on the inner wall of the vertical channel 103, and the upper cavity 106 and the horizontal annular groove 102 are connected.

[0044] The front ends of the upper cavity 106 and the lower cavity 107 are sealed by the end cover 2, and the second bearings 25 are sleeved at both ends of the horizontal shaft 27. The second bearing 25 at the front end is embedded in the rear end of the end cover 2, and the second bearing 25 at the rear end is embedded in the outer wall of the rear end of the feed pipe 3.

[0045] The interior of the tank body 11 is formed with a front cavity 10 and a rear cavity 111 distributed front and back through a partition 44. The front end of the front cavity 10 is connected with the opening of the front end of the tank body 11. A material leakage port 110 is provided at the top of the rear end of the tank body 11. The crushing cavity 104 is connected with the rear cavity 111 through the material leakage port 110.

[0046] The inside of the feeding hopper is provided with a primary crushing part and a secondary crushing part from top to bottom;

[0047] A three-stage crushing element and a conveying mechanism driven by the three-stage crushing element are arranged inside the rear cavity 111;

[0048] The front end of the partition plate 44 is also provided with a rotating disk 23 driven by a three-stage crushing element, and the front cavity 10 is provided with a pressing disk 24;

[0049] The tertiary crushing element is driven by the motor 14, and the secondary crushing element drives the primary crushing element through the driving mechanism. The secondary crushing element realizes the reciprocating movement of the extrusion disk 24 in the front cavity 10 through the connecting piece.

[0050] The primary crushing member includes a first extrusion gear 33 and a second extrusion gear 34 movably connected in the horizontal annular groove 102 via a vertical shaft 35, and the inner sides of the first extrusion gear 33 and the second extrusion gear 34 extend into the vertical channel 103 and mesh with each other;

[0051] The secondary crushing member includes a horizontal shaft 27 inside the crushing chamber 104 and a first crushing blade 28 fixed on the horizontal shaft 27;

[0052] The driving mechanism includes a worm 26 fixed on the horizontal shaft 27, a worm wheel 29 meshing with the worm 26, and a driving gear 32 fixed to the top of the worm wheel 29 through a driving shaft 30. The worm 26 and the worm 26 are located in the lower cavity 107. The middle of the driving shaft 30 passes through the horizontal platform 105. A third bearing 31 is sleeved on the driving shaft 30, and the third bearing 31 is embedded in the horizontal platform 105. The third bearing 31 is provided to ensure smooth rotation of the driving shaft 30. The driving gear 32 is located in the upper cavity 106, and the driving gear 32 is meshed with the first extrusion gear 33.

[0053] The motor 14 is fixed on the bracket 13 at the rear end of the tank body 11. The three-stage crushing part includes a middle horizontal rotating shaft 40 arranged in the rear cavity 111 and side horizontal rotating shafts 38 located on both sides of the middle horizontal rotating shaft 40. The middle horizontal rotating shaft 40 and the side horizontal rotating shaft 38 are both provided with a second crushing blade 39.

[0054] The rear end of the intermediate horizontal rotating shaft 40 extends out of the tank body 11, and a first gear 37 and a first pulley 15 are fixed thereto. The motor shaft at the output end of the motor 14 passes through the bracket 13 and is fixedly connected to the rear end of the intermediate horizontal rotating shaft 40.

[0055] The rear end of the horizontal shaft 27 extends through the feed pipe 3 and is fixedly connected to a second pulley 17, and the second pulley 17 is connected to the first pulley 15 through a belt 16;

[0056] The rear end of the side horizontal rotating shaft 38 passes through the tank body 11 and is fixed with a second gear 36. Two sets of second gears 36 are meshed with both sides of the first gear 37.

[0057] The front end of the side horizontal rotating shaft 38 extends into the shaft hole at the rear end of the partition 44 , and the front end of the middle horizontal rotating shaft 40 passes through the middle part of the partition 44 and is fixedly connected to the middle part of the rear end of the turntable 23 .

[0058] The primary crushing parts and the secondary crushing parts are used to crush the raw materials put into the feeding hopper, the tertiary crushing parts are used to crush the raw materials falling into the rear cavity 111, and the conveying mechanism is used to convey the raw materials crushed by the tertiary crushing parts to between the turntable 23 and the partition 44. The rotation of the turntable 23 is used to crush the raw materials between the turntable 23 and the partition 44, and also to convey the raw materials between the turntable 23 and the partition 44 to between the turntable 23 and the extrusion disk 24. The extrusion disk 24 reciprocates back and forth to crush the raw materials between the turntable 23 and the extrusion disk 24.

[0059] The rotating disk 23 is provided with a material leakage slot 232. The front end surface of the rotating disk 23 and the rear end surface of the extrusion disk 24 are both provided with protrusions 231, and the front end surface of the partition 44 is provided with a protrusion 441. The bottom of the partition 44 is provided with a U-shaped slot 442, and the front end of the auger 19 extends into the U-shaped slot 442.

[0060] Under the rotation of the auger 19, the raw materials in the rear cavity 111 are squeezed into the space between the rotating disk 23 and the partition 44 through the U-shaped slot 442. As the raw materials continue to enter the space between the rotating disk 23 and the partition 44, at this time, Figure 8 As shown, when the turntable 23 rotates, the raw materials between the turntable 23 and the partition 44 are ground under the action of the convex plate 441 on the partition 44. During the grinding, part of the raw materials between the turntable 23 and the partition 44 also enters between the turntable 23 and the extrusion plate 24 through the leakage groove 232.

[0061] The conveying mechanism includes an auger 19 disposed in the rear cavity 111, the auger 19 is located directly below the middle horizontal rotating shaft 40, and an auger shaft 20 fixed at the rear end of the auger 19 penetrates the tank body 11 and is fixed with a third gear 22, and the third gear 22 is meshed with the lower end of the first gear 37;

[0062] A bearing seat 12 is fixed at the front end of the bracket 13, and the rear end of the auger shaft 20 extends into the bearing seat 12, and a first bearing 21 is provided inside the bearing seat 12 and is sleeved on the rear end of the auger shaft 20; through the arrangement of the first bearing 21 and the bearing seat 12, the auger shaft 20 can rotate smoothly and stably, further ensuring the smooth rotation of the auger 19.

[0063] The connecting member includes a tilting plate 5 fixedly connected to the front end of the horizontal shaft 27 after passing through the feed pipe 3, a piston rod 9 fixed to the middle of the front end of the squeezing plate 24, a vertical rod 8 fixed after the piston rod 9 extends out of the front cavity 10, a moving rod 7 fixed to the top of the vertical rod 8, and a U-shaped seat 4 fixed to the front end of the moving rod 7;

[0064] The U-shaped seat 4 is clamped on the side of the tilting plate 5, and a limiting cylinder 6 is fixed to the top of the front end of the tank body 11, and the moving rod 7 extends through the middle of the limiting cylinder 6.

[0065] A base 18 is also provided at the bottom of the tank body 11, and a vertical discharge port 181 communicating with the front cavity 10 is provided inside the base 18;

[0066] In addition, in order to achieve the above-mentioned purpose, the present invention also provides a probiotic fermentation device, including the multi-stage crushing mechanism.

[0067] Specifically, when in use, the motor 14 is working, and since the second pulley 17 is connected to the first pulley 15 via the belt 16, the horizontal shaft 27 drives the first crushing blade 28 to rotate inside the crushing chamber 104, and the horizontal shaft 27 drives the inclined disk 5 at its front end to rotate;

[0068] Since the worm 26 is meshed with the worm wheel 29, the driving gear 32 is meshed with the first extrusion gear 33, and the first extrusion gear 33 is meshed with the second extrusion gear 34, the horizontal shaft 27 drives the driving shaft 30 to rotate, and the driving shaft 30 drives the first extrusion gear 33 and the second extrusion gear 34 to rotate synchronously through the driving gear 32;

[0069] Since the two sets of second gears 36 are meshed on both sides of the first gear 37, and the third gear 22 is meshed on the lower end of the first gear 37, the middle horizontal shaft 40, the rotating disk 23, the side horizontal shaft 38 and the auger 19 also rotate synchronously;

[0070] Since the U-shaped seat 4 is stuck on the side of the tilting plate 5, that is, the side of the tilting plate 5 extends into the U-shaped groove inside the U-shaped seat 4, the rotation of the tilting plate 5 will drive the moving rod 7 to move back and forth along the limiting cylinder 6 through the U-shaped seat 4, so that the moving rod 7 drives the extrusion plate 24 to move back and forth inside the front cavity 10 through the vertical rod 8 and the piston rod 9;

[0071] When the first extrusion gear 33 and the second extrusion gear 34 rotate synchronously, the raw materials in the horn feeding port 101 are squeezed and crushed (i.e., the raw materials are crushed once), and the crushed raw materials fall into the crushing chamber 104 through the vertical channel 103. At this time, the horizontal shaft 27 drives the first crushing blade 28 to crush the raw materials in the crushing chamber 104 for the second time;

[0072] The raw materials after secondary crushing fall into the rear cavity 111 through the material leakage port 110, and the second crushing blades 39 on the middle horizontal rotating shaft 40 and the side horizontal rotating shaft 38 crush the raw materials in the rear cavity 111 for the third time. At this time, since the two sets of side horizontal rotating shafts 38 and the middle horizontal rotating shaft 40 rotate in opposite directions, when driving the second crushing blades 39 to rotate, the crushing effect of the second crushing blades 39 on the raw materials can be further improved;

[0073] The auger 19 rotates to squeeze the raw materials that fall to the bottom of the rear cavity 111 into between the rotating disk 23 and the partition 44 through the U-shaped slot 442, and the raw materials continue to enter between the rotating disk 23 and the partition 44;

[0074] At this time, if Figure 8As shown, when the rotating disk 23 rotates, the raw materials between the rotating disk 23 and the partition plate 44 are ground and crushed under the action of the convex plate 441 on the partition plate 44 (i.e., the raw materials are crushed four times). While grinding and crushing, part of the raw materials between the rotating disk 23 and the partition plate 44 also enters between the rotating disk 23 and the extrusion disk 24 through the material leakage slot 232;

[0075] Subsequently, while the extrusion disk 24 reciprocates back and forth, the turntable 23 also rotates, so that when the extrusion disk 24 approaches the turntable 23, the raw materials between the turntable 23 and the extrusion disk 24 can be crushed again by the protrusions 231 under the rotation of the turntable 23 and the extrusion disk 24 (i.e., the raw materials are crushed five times);

[0076] like Figure 8 As shown, when the extrusion disk 24 is close to the turntable 23, the raw materials accumulated on the top of the vertical discharge port 181 can be pushed toward the turntable 23, so as to avoid the raw materials from being blocked in the vertical discharge port 181;

[0077] When the extrusion disk 24 moves away from the turntable 23, the raw materials at the front end of the turntable 23 can be smoothly discharged into the fermentation tank through the vertical discharge port 181. In this way, during the reciprocating movement of the extrusion disk 24, periodic discharge through the vertical discharge port 181 is achieved, and the raw materials can be further prevented from being blocked in the vertical discharge port 181.

[0078] After the crushed raw materials enter the fermentation tank, the raw materials can be fermented by probiotics in the fermentation tank.

[0079] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-stage crushing mechanism, comprising a tank body, characterized in that: The top of the rear end of the tank body is connected to a feeding hopper, and the inside of the feeding hopper is provided with a primary crushing piece and a secondary crushing piece in sequence from top to bottom; The tank body is provided with a front cavity and a rear cavity distributed front and back through a partition, the front end of the front cavity is connected with the opening of the front end of the tank body, and the rear cavity is provided with a three-stage crushing piece and a conveying mechanism driven by the three-stage crushing piece; The front end of the partition is also provided with a rotating disk driven by a three-stage crushing element, and the interior of the front cavity is provided with an extrusion disk; The tertiary crushing element is driven by the motor, and the secondary crushing element drives the primary crushing element through the driving mechanism. The secondary crushing element realizes the reciprocating movement of the extrusion disk in the front cavity through the connecting piece. The primary crushing element and the secondary crushing element are used to crush the raw materials put into the feeding hopper, the tertiary crushing element is used to crush the raw materials falling into the rear cavity, the conveying mechanism is used to convey the raw materials crushed by the tertiary crushing element to between the turntable and the partition, the turntable rotates to crush the raw materials between the turntable and the partition, and also conveys the raw materials between the turntable and the partition to between the turntable and the extrusion disk, and the extrusion disk reciprocates back and forth to crush the raw materials between the turntable and the extrusion disk; The feeding hopper comprises a feeding pipe fixed on the top of the rear end of the tank body and a hopper on the top of the feeding pipe; A grinding chamber is provided at the lower side of the feeding pipe, and a trumpet feeding port connected to the hopper is connected in the middle of the top of the grinding chamber through a vertical channel; An upper cavity and a lower cavity are formed on the outer side wall of the front end of the feed pipe through a horizontal platform, and a horizontal annular groove is provided on the inner wall of the vertical channel, and the upper cavity and the horizontal annular groove are connected; The primary crushing member comprises a first extrusion gear and a second extrusion gear movably connected in a horizontal annular groove through a vertical shaft, wherein the inner sides of the first extrusion gear and the second extrusion gear extend into the vertical channel and mesh with each other; The secondary crushing member includes a horizontal shaft inside the crushing chamber and a first crushing blade fixed on the horizontal shaft; The driving mechanism includes a worm fixed on the horizontal shaft, a worm wheel meshing with the worm, and a driving gear fixed on the top of the worm wheel through a driving shaft, the worm and the worm are located in the lower cavity, the middle of the driving shaft passes through the horizontal platform, the driving gear is located in the upper cavity, and the driving gear is meshed with the first extrusion gear; The motor is fixed on a bracket at the rear end of the tank body, and the three-stage crushing element includes a middle horizontal rotating shaft arranged in the rear cavity and side horizontal rotating shafts located on both sides of the middle horizontal rotating shaft, and the middle horizontal rotating shaft and the side horizontal rotating shaft are both provided with a second crushing blade; The rear end of the intermediate horizontal rotating shaft extends out of the tank body and is fixed with a first gear and a first pulley, and the motor shaft at the output end of the motor passes through the bracket and is fixedly connected to the rear end of the intermediate horizontal rotating shaft; The rear end of the horizontal shaft passes through the feed pipe and is fixedly connected to a second pulley, and the second pulley is connected to the first pulley through a belt; A second gear is fixed to the rear end of the side horizontal rotating shaft after passing through the tank body, and two sets of second gears are meshed with both sides of the first gear; The front end of the side horizontal rotating shaft extends into the shaft hole at the rear end of the partition, and the front end of the middle horizontal rotating shaft passes through the middle part of the partition and is fixedly connected to the middle part of the rear end of the turntable; The conveying mechanism includes an auger arranged in the rear cavity, the auger is located directly below the middle horizontal rotating shaft, and the auger shaft fixed at the rear end of the auger penetrates the tank body and is fixed with a third gear, and the third gear is meshed with the lower end of the first gear; A U-shaped slot is provided at the bottom of the partition, and the front end of the auger extends into the U-shaped slot; The connecting member comprises an inclined plate fixedly connected after the front end of the horizontal shaft penetrates the feed pipe, a piston rod fixed at the middle of the front end of the extrusion plate, a vertical rod fixed after the piston rod extends out of the front cavity, a moving rod fixed at the top of the vertical rod, and a U-shaped seat fixed at the front end of the moving rod; The U-shaped seat is clamped on the side of the tilting plate, a limiting cylinder is fixed on the top of the front end of the tank body, and the moving rod extends through the middle of the limiting cylinder.

2. A multi-stage crushing mechanism according to claim 1, characterized in that: The rotating disk is provided with a material leakage slot.

3. A probiotic fermentation device, characterized in that: It comprises a multi-stage crushing mechanism as described in any one of claims 1-2.

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