Grinding device for rice crushing

Abstract

The invention belongs to the technical field of extrusion crushing, and particularly relates to a grinding device for rice crushing, which comprises a hammering type rotary crushing mechanism, a non-synchronous linkage type hammering mechanism, a self-adaptive feeding mechanism and a main body driving mechanism. By means of the hammering type rotary crushing mechanism, the rice extruding and crushing process can be divided into two stages, one stage is a common extruding and crushing stage, and the other stage is a step of adding hammering and crushing on the basis of extruding and crushing, so that strip-shaped crushed blocks are avoided, and the crushing efficiency is improved. Therefore, the size controllability and consistency of the crushed product are further improved; moreover, through a sliding friction transmission mode, under the condition that rotation of the crushing main shaft is still adopted as driving force, the problems that when the rotating speed of the crushing main shaft is too high, equipment vibration is too large, and when the rotating speed of the crushing main shaft is too low, the longitudinal impact frequency of the grinding roller is too small are solved.

Description

Technical Field

[0001] The invention belongs to the technical field of extrusion crushing, and in particular relates to a grinding device for crushing rice. Background Art

[0002] The crushing of granular materials such as rice is often carried out by rolling and grinding. Generally, the material is squeezed in a space with a gradually smaller gap. When it is crushed to a certain extent, it will fall from the gap. This one-way crushing method only screens the size of the material in one direction. That is to say, as long as the thickness of the crushed material is thin enough to pass through the rolling gap, it can pass smoothly even if the width dimension exceeds the standard (in the form of thin flakes) or the length dimension exceeds the standard (in the form of long strips). Therefore, it is easy to cause problems such as incomplete crushing and insufficient product consistency. Summary of the invention

[0003] In view of the above situation, in order to overcome the defects of the prior art, the present invention proposes a grinding device for rice crushing. In order to simplify the structure and control logic, the present invention utilizes the rotational motion of the crushing main shaft to drive the adaptive feeding mechanism and the asynchronous linkage hammer mechanism, which can not only simplify the structure and save costs, but also make the feeding speed of the adaptive feeding mechanism always positively correlated with the rotational speed of the crushing main shaft; in fact, during the working process of the device, it does meet the objective requirement of "the faster the rotational grinding speed, the higher the crushing efficiency, and the higher the required feeding speed".

[0004] However, the longitudinal hammering, which is also driven by the rotation of the crushing main shaft, does not have this feature, because the hammering of the grinding roller will cause greater vibration. If the hammering frequency of the grinding roller also increases with the increase of the crushing main shaft speed, then the actual adjustable range of the crushing main shaft will be very narrow, because too fast a speed will cause excessive vibration of the entire device. If the speed of the split clamping ring is reduced by designing the transmission ratio, the hammering frequency of the grinding roller will be too slow if the speed is too low, and even the embarrassing situation that the material falls from the gap of the bottom retaining edge without being hammered in the entire second crushing process may occur. Therefore, how to ensure that the movement speed of the asynchronous linkage hammering mechanism is not greatly affected by the change of the crushing main shaft speed while being linked is a technical problem that the present invention urgently needs to solve.

[0005] The technical solution adopted by the present invention is as follows: The present invention proposes a grinding device for rice crushing, including a hammer-type rotary crushing mechanism, an asynchronous linkage hammer mechanism, an adaptive feeding mechanism, and a main driving mechanism. The hammer-type rotary crushing mechanism is arranged on the main driving mechanism, the asynchronous linkage hammer mechanism is arranged in the hammer-type rotary crushing mechanism, and the adaptive feeding mechanism is arranged on the main driving mechanism; the hammer-type rotary crushing mechanism includes a crushing barrel support assembly, a grinding and crushing assembly and a rotating transmission assembly, the crushing barrel support assembly is arranged on the main driving mechanism, the grinding and crushing assembly is arranged on the main driving mechanism, and the rotating transmission assembly is rotatably arranged in the crushing barrel support assembly.

[0006] The hammer-type rotary crushing mechanism can divide the rice extrusion and crushing process into two stages. One is the ordinary extrusion and crushing stage, and the other is to add a hammer crushing step on the basis of extrusion crushing, so as to avoid the appearance of long strips of fragments, thereby further improving the size controllability and consistency of the crushed product.

[0007] Furthermore, the crushing barrel support assembly includes a bottom support barrel, a crushing outer barrel and a crushing inner barrel, the bottom support barrel is composed of a circular ring portion, an inner lining portion and a straight barrel portion, the crushing outer barrel and the bottom support barrel are fixedly connected, the crushing inner barrel and the crushing outer barrel are fixedly connected, the inner lining portion is located between the crushing outer barrel and the crushing inner barrel, and a bottom rib is provided at the bottom of the crushing inner barrel, and a notch is provided on the bottom rib.

[0008] The inner lining can limit and collect the broken particles falling from the notch of the bottom rib, so that they can fall smoothly from the bottom of the bottom support cylinder and avoid splashing everywhere; the inner wall of the crushing inner cylinder and the outer wall of the grinding roller are provided with vertical fine lines, so that during the extrusion and crushing process, the rice is rotated along the rotation direction of the grinding roller, thereby avoiding the formation of flaky fragments.

[0009] Preferably, the grinding and crushing assembly includes a grinding roller, a flexible retaining ring and a crushing spindle, the grinding roller and the crushing spindle are fixedly connected, the bottom of the grinding roller is provided with a first crushing part and a second crushing part with different diameters in sequence, the flexible retaining ring is fixedly connected to the crushing inner cylinder, the flexible retaining ring is provided with a notch, the notch of the bottom retaining edge and the notch of the flexible retaining ring do not overlap in the vertical projection, the bottom of the crushing spindle is provided with a polygonal bottom boss, the crushing spindle is provided with an annular groove, and the top of the crushing spindle is also provided with a top spring baffle.

[0010] The grinding roller will also intermittently perform longitudinal impacts during the rotating crushing process, thereby avoiding the formation of long strips of fragments while avoiding thin flake fragments, making the crushing more uniform and thorough, significantly improving the quality of the crushing process and product consistency.

[0011] Since the notch of the bottom rib and the notch of the flexible retaining ring do not overlap in the vertical projection, the fragments after the initial crushing will inevitably stay and move for a certain period of time in the second crushing process, thereby avoiding the situation where the fragments after the initial crushing pass through the second crushing area and fall directly.

[0012] As a further preferred embodiment of the present invention, the rotating transmission assembly includes a driven worm wheel, a driving worm and a worm bearing, the driven worm wheel is rotatably arranged in the annular portion, a polygonal center sleeve is provided at the center position of the driven worm wheel, the bottom boss is snap-fitted and slidably arranged in the center sleeve, the driving worm is rotatably arranged in the straight tube portion, the worm bearing is arranged between the driving worm and the straight tube portion, and the driven worm wheel and the driving worm are meshingly transmitted.

[0013] The driven motor drives the rotating driven worm gear to drive the crushing main shaft to rotate, and in the process of transmitting the rotational motion, the cooperation of the bottom boss and the center sleeve allows the crushing main shaft to move up and down freely.

[0014] Furthermore, the asynchronous linkage hammer mechanism includes a lifting control component and an elastic energy storage component. The lifting control component is engaged in the crushing barrel support component, and the elastic energy storage component is arranged on the profile frame.

[0015] Preferably, the lifting control assembly includes a fixed ring, an annular guide rail, a friction lining and a split clamping ring, the fixed ring is fixed to the inner wall of the crushing inner cylinder, the annular guide rail is fixed in the fixed ring, a spiral groove is provided on the inner wall of the annular guide rail, the spiral angle of the spiral groove is 360 degrees, the two ends of the spiral groove are connected by a vertical groove, the friction lining is fixed to the annular groove portion, the split clamping ring consists of two parts hinged to each other, the split clamping ring is wrapped around the outside of the friction lining, the split clamping ring is locked by bolts, a cylindrical convex rod is provided on the outside of the split clamping ring, the convex rod is slidably arranged in the spiral groove, the split clamping ring is located in the annular groove portion, and the friction lining and the split clamping ring can rotate relative to each other.

[0016] The motion is transmitted between the friction lining and the split clamping ring through sliding friction. Therefore, in the process of the crushing spindle speed changing, the lifting motion of the crushing spindle can still remain basically stable, thereby greatly improving the active adjustment range of the crushing spindle speed. While still using the rotation of the crushing spindle as the driving force, it avoids the problems of excessive vibration of the equipment when the crushing spindle speed is too fast and too few longitudinal impacts of the grinding roller when the crushing spindle speed is too slow.

[0017] As a further preferred embodiment of the present invention, the elastic energy storage assembly includes a fixed top plate, an energy storage spring and a stirring rod, the fixed top plate is fixedly connected to the profile frame, the top rotation of the crushing spindle is arranged in the fixed top plate, the energy storage spring is arranged between the fixed top plate and the top spring baffle, and the stirring rod is fixedly connected to the side of the fixed top plate.

[0018] Since the convex rod of the split clamping ring slides in the spiral groove, the split clamping ring can be lifted up with the crushing main shaft and compress the energy storage spring to continue the elastic force during the rotation of the split clamping ring. When the convex rod of the split clamping ring moves to the vertical groove of the spiral groove, the crushing main shaft will drop rapidly under the elastic force of the energy storage spring, thereby the material is longitudinally squeezed and crushed through the shoulder of the first crushing part and the bottom retaining edge, thereby avoiding the longitudinal size of the fragments exceeding the standard.

[0019] Furthermore, the adaptive feeding mechanism includes a feeding transmission assembly and a quantitative feeding assembly. The feeding transmission assembly is rotatably arranged in the profile frame, and the quantitative feeding assembly is arranged on the main driving mechanism.

[0020] Preferably, the feeding transmission assembly comprises a synchronous transmission assembly and a transmission worm, the transmission worm is rotatably arranged in the fixed top plate, and the synchronous transmission assembly is arranged between the top of the crushing main shaft and the transmission worm.

[0021] As a further preferred embodiment of the present invention, the quantitative feeding assembly includes a rotating support frame and a rotating feeding hopper, the rotating support frame is fixedly connected to the main driving mechanism, and the two ends of the rotating support frame are respectively provided with a feed baffle and a discharge baffle, the feed baffle is provided with a notch located at the top, and the discharge baffle is provided with a notch located at the bottom, the rotating feeding hopper is rotatably arranged in the rotating support frame, and the two ends of the rotating feeding hopper are respectively provided with a feed notch and a discharge notch, and the outside of the rotating feeding hopper is provided with a worm gear part, and the worm gear part is engaged with a transmission worm for transmission.

[0022] Through the rotating motion of the rotating feed hopper, the material can be supplied intermittently, and because the two ends of the rotating feed hopper are not opened at the same time, the material supply amount is actually related to the rotation speed of the rotating feed hopper. Therefore, through the linkage of the synchronous transmission component, not only the structure can be simplified, but also the material supply rate and the crushing rotation speed can be matched with each other.

[0023] Furthermore, the main driving mechanism includes a main body bottom plate, a profile frame, a main driving assembly and a silo assembly, the profile frame is arranged on the main body bottom plate, the main driving assembly includes a motor mounting platform, a drive motor, a coupling and a straight tube bracket, the motor mounting platform is arranged on the main body bottom plate, the drive motor is arranged on the motor mounting platform, the coupling is arranged between the output shaft of the drive motor and the active worm, the straight tube bracket is sleeved on the straight tube part, the straight tube bracket is fixedly connected to the motor mounting platform, and the silo assembly is arranged on the profile frame.

[0024] Preferably, the silo assembly includes a silo body, a lifting plate and a lifting electric cylinder, the silo body is arranged on the profile frame, the rotating support frame is fixedly connected to the side of the discharge notch, the lifting plate is snap-fitted and slidably arranged in the silo body, and the lifting electric cylinder is arranged between the silo body and the lifting plate.

[0025] The beneficial effects achieved by the present invention using the above structure are as follows: (1) The hammer-type rotary crushing mechanism can divide the rice extrusion crushing process into two stages: one is the ordinary extrusion crushing stage, and the other is to add a hammer crushing step on the basis of extrusion crushing, so as to avoid the appearance of long strips of fragments, thereby further improving the size controllability and consistency of the crushed product.

[0026] (2) The inner lining can limit and collect the broken particles falling from the notch of the bottom retaining edge, so that they can fall smoothly from the bottom of the bottom support cylinder and avoid splashing everywhere; the inner wall of the crushing inner cylinder and the outer wall of the grinding roller are provided with vertical fine lines, so that during the extrusion and crushing process, the rice is rotated along the rotation direction of the grinding roller, thereby avoiding the formation of thin flakes.

[0027] (3) The grinding roller will also intermittently perform longitudinal impact during the rotating crushing process, thereby avoiding the formation of long strips of fragments while avoiding the formation of thin flakes, making the crushing more uniform and thorough, significantly improving the quality of the crushing process and product consistency.

[0028] (4) Since the notch of the bottom retaining edge and the notch of the flexible retaining ring do not overlap in the vertical projection, the fragments after the initial crushing will inevitably stay and move for a certain period of time in the second crushing process, thereby avoiding the situation where the fragments after the initial crushing pass through the second crushing area and fall directly.

[0029] (5) The driven motor drives the rotating driven worm gear to drive the crushing main shaft to rotate, and in the process of transmitting the rotational motion, the bottom boss and the center sleeve cooperate to allow the crushing main shaft to move freely up and down.

[0030] (6) The movement between the friction lining and the split clamping ring is transmitted through sliding friction. Therefore, when the speed of the crushing main shaft changes, the lifting and lowering movement of the crushing main shaft can still remain basically stable, thereby greatly improving the active adjustment range of the crushing main shaft speed. While still using the rotation of the crushing main shaft as the driving force, it avoids the problem of excessive vibration of the equipment when the speed of the crushing main shaft is too fast, and the problem of too few longitudinal impacts of the grinding roller when the speed of the crushing main shaft is too slow.

[0031] (7) Since the protruding rod of the split clamping ring slides in the spiral groove, the split clamping ring can be lifted up with the crushing main shaft and compress the energy storage spring to continue the elastic force during the rotation of the split clamping ring. When the protruding rod of the split clamping ring moves to the vertical groove of the spiral groove, the crushing main shaft will drop rapidly under the elastic force of the energy storage spring, thereby squeezing and crushing the material longitudinally through the shoulder and bottom retaining edge of the first crushing part, thereby avoiding the longitudinal size of the fragments exceeding the standard.

[0032] (8) Through the rotational movement of the rotary feed hopper, the material can be supplied intermittently, and because the two ends of the rotary feed hopper are not opened at the same time, the material supply amount is actually related to the rotation speed of the rotary feed hopper. Therefore, through the linkage of the synchronous transmission component, not only can the structure be simplified, but also the material supply rate and the crushing rotation speed can be matched with each other. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 A three-dimensional diagram of a rice grinding device for crushing rice proposed by the present invention; Figure 2 A front view of a rice grinding device for crushing rice proposed by the present invention; Figure 3 A left side view of a rice grinding device for crushing rice proposed by the present invention; Figure 4 A top view of a rice grinding device for crushing rice proposed by the present invention; Figure 5 for Figure 2 A cross-sectional view along the cutting line AA; Figure 6 for Figure 2 A cross-sectional view along the cutting line BB; Figure 7 An explosion schematic diagram of a rice grinding device for crushing rice proposed by the present invention; Figure 8 for Figure 5 A partial enlarged view of point Ⅰ in the middle; Fig. 9 for Figure 5 A partial enlarged view of the middle II; Fig.10 for Figure 7 A partial enlarged view of the middle part III; Fig.11 for Figure 7 A partial enlarged view of the middle IV; Fig.12 for Figure 7 A partial enlarged view of point V in the middle; Fig.13 Schematic diagram of the material's falling path.

[0034] Among them, 1. hammer-type rotary crushing mechanism, 2. asynchronous linkage hammer mechanism, 3. adaptive feeding mechanism, 4. main driving mechanism, 5. crushing cylinder support assembly, 6. grinding and crushing assembly, 7. rotating transmission assembly, 8. bottom support cylinder, 9. crushing outer cylinder, 10. crushing inner cylinder, 11. grinding roller, 12. flexible retaining ring, 13. crushing main shaft, 14. driven worm gear, 15. active worm, 16. worm bearing, 17. annular part, 18. lining part, 19. straight cylinder part, 20. bottom rib, 21. stirring rod, 22. first crushing part, 23. second crushing part, 24. bottom boss, 25. annular groove part, 26. top spring baffle, 27. center sleeve, 28. lifting control assembly, 29. Elastic energy storage assembly, 30. Fixed ring, 31. Annular guide rail, 32. Friction lining, 33. Split clamping ring, 34. Fixed top plate, 35. Energy storage spring, 36. Spiral groove, 38. Feed transmission assembly, 39. Quantitative feeding assembly, 40. Synchronous transmission assembly, 41. Transmission worm, 42. Rotating support frame, 43. Rotating feed hopper, 44. Feed baffle, 45. Discharge baffle, 46. Feed notch, 47. Discharge notch, 48. Worm gear, 49. Profile frame, 50. Main drive assembly, 51. Silo assembly, 52. Motor mounting platform, 53. Drive motor, 54. Coupling, 55. Straight bracket, 56. Main bottom plate, 57. Silo body, 58. Lifting plate, 59. Lifting electric cylinder.

[0035] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0037] In the description of the present invention, it should be understood that terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “top”, “bottom”, “inside” and “outside” indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0038] like Figure 1 to Figure 12 As shown, the present invention proposes a rice grinding device for crushing rice, comprising a hammer-type rotating crushing mechanism 1, an asynchronous linkage hammer mechanism 2, an adaptive feeding mechanism 3, and a main driving mechanism 4. The hammer-type rotating crushing mechanism 1 is arranged on the main driving mechanism 4, the asynchronous linkage hammer mechanism 2 is arranged in the hammer-type rotating crushing mechanism 1, and the adaptive feeding mechanism 3 is arranged on the main driving mechanism 4.

[0039] The main driving mechanism 4 includes a main base plate 56, a profile frame 49, a main driving assembly 50 and a silo assembly 51. The profile frame 49 is arranged on the main base plate 56. The main driving assembly 50 includes a motor mounting platform 52, a drive motor 53, a coupling 54 and a straight tube bracket 55. The motor mounting platform 52 is arranged on the main base plate 56. The drive motor 53 is arranged on the motor mounting platform 52. The coupling 54 is arranged between the output shaft of the drive motor 53 and the active worm 15. The straight tube bracket 55 is sleeved on the straight tube portion 19. The straight tube bracket 55 is fixedly connected to the motor mounting platform 52. The silo assembly 51 is arranged on the profile frame 49.

[0040] The silo assembly 51 includes a silo body 57, a lifting plate 58 and a lifting electric cylinder 59. The silo body 57 is arranged on the profile frame 49, the rotating support frame 42 is fixedly connected to the side of the discharge notch 47, the lifting plate 58 is snap-fitted and slidably arranged in the silo body 57, and the lifting electric cylinder 59 is arranged between the silo body 57 and the lifting plate 58.

[0041] The hammer-type rotary crushing mechanism 1 includes a crushing barrel supporting assembly 5, a grinding and crushing assembly 6 and a rotary transmission assembly 7. The crushing barrel supporting assembly 5 is arranged on the main driving mechanism 4, the grinding and crushing assembly 6 is arranged on the main driving mechanism 4, and the rotary transmission assembly 7 is rotatably arranged in the crushing barrel supporting assembly 5.

[0042] The hammer-type rotary crushing mechanism 1 can divide the rice extrusion crushing process into two stages, one is the ordinary extrusion crushing stage, and the other is to add the hammer crushing step on the basis of extrusion crushing, so as to avoid the appearance of long strips of fragments, thereby further improving the size controllability and consistency of the crushed product.

[0043] The crushing cylinder support assembly 5 includes a bottom support cylinder 8, a crushing outer cylinder 9 and a crushing inner cylinder 10. The bottom support cylinder 8 is composed of a circular ring portion 17, an inner lining portion 18 and a straight cylinder portion 19. The crushing outer cylinder 9 is fixedly connected to the bottom support cylinder 8, and the crushing inner cylinder 10 is fixedly connected to the crushing outer cylinder 9. The inner lining portion 18 is located between the crushing outer cylinder 9 and the crushing inner cylinder 10. A bottom rib 20 is provided at the bottom of the crushing inner cylinder 10, and a notch is provided on the bottom rib 20.

[0044] The inner lining 18 can limit and collect the broken particles falling from the notch of the bottom rib 20, so that they can fall smoothly from the bottom of the bottom support cylinder 8 and avoid splashing everywhere; the inner wall of the crushing inner cylinder 10 and the outer wall of the grinding roller 11 are both provided with vertical fine lines, so that during the extrusion and crushing process, the rice is rotated along the rotation direction of the grinding roller 11, thereby avoiding the formation of flaky fragments.

[0045] The grinding and crushing assembly 6 includes a grinding roller 11, a flexible retaining ring 12 and a crushing spindle 13. The grinding roller 11 and the crushing spindle 13 are fixedly connected. The bottom of the grinding roller 11 is provided with a first crushing part 22 and a second crushing part 23 with different diameters in sequence. The flexible retaining ring 12 is fixedly connected to the crushing inner cylinder 10. The flexible retaining ring 12 is provided with a notch. The notch of the bottom retaining edge 20 and the notch of the flexible retaining ring 12 do not overlap in the vertical projection. A polygonal bottom boss 24 is provided at the bottom of the crushing spindle 13, an annular groove 25 is provided on the crushing spindle 13, and a top spring baffle 26 is also provided at the top of the crushing spindle 13.

[0046] The grinding roller 11 will also intermittently perform longitudinal impacts during the rotational crushing process, thereby avoiding the formation of long strips of fragments while avoiding the formation of thin flake fragments, thereby making the crushing more uniform and thorough, and significantly improving the quality of the crushing process and product consistency.

[0047] Since the notch of the bottom retaining edge 20 and the notch of the flexible retaining ring 12 do not overlap in the vertical projection, the fragments after the initial crushing will inevitably stay and move for a certain period of time in the second crushing process, thereby avoiding the situation where the fragments after the initial crushing pass through the second crushing area and fall directly.

[0048] The rotary transmission assembly 7 includes a driven worm wheel 14, a driving worm 15 and a worm bearing 16. The driven worm wheel 14 is rotatably arranged in the annular portion 17. A polygonal center sleeve 27 is provided at the center position of the driven worm wheel 14. The bottom boss 24 is slidably engaged in the center sleeve 27. The driving worm 15 is rotatably arranged in the straight tube portion 19. The worm bearing 16 is arranged between the driving worm 15 and the straight tube portion 19. The driven worm wheel 14 and the driving worm 15 are meshed for transmission.

[0049] The driven motor 53 drives the rotating driven worm gear 14 to drive the crushing main shaft 13 to rotate, and in the process of transmitting the rotational motion, the bottom boss 24 and the center sleeve 27 cooperate to allow the crushing main shaft 13 to move freely up and down.

[0050] The asynchronous linkage hammer mechanism 2 includes a lifting control component 28 and an elastic energy storage component 29 . The lifting control component 28 is engaged in the crushing barrel support component 5 , and the elastic energy storage component 29 is arranged on the profile frame 49 .

[0051] The lifting control assembly 28 includes a fixed ring 30, an annular guide rail 31, a friction lining 32 and a split clamping ring 33. The fixed ring 30 is fixedly connected to the inner wall of the crushing inner cylinder 10, the annular guide rail 31 is fixedly connected to the fixed ring 30, a spiral groove 36 is provided on the inner wall of the annular guide rail 31, the spiral angle of the spiral groove 36 is 360 degrees, the two ends of the spiral groove 36 are connected by a vertical groove, the friction lining 32 is fixedly connected to the annular groove portion 25, and the split clamping ring 33 is composed of two parts hinged to each other, the split clamping ring 33 is wrapped around the outside of the friction lining 32, the split clamping ring 33 is locked by bolts, a cylindrical convex rod is provided on the outside of the split clamping ring 33, the convex rod is slidably arranged in the spiral groove 36, the split clamping ring 33 is located in the annular groove portion 25, and the friction lining 32 and the split clamping ring 33 can rotate relative to each other.

[0052] The motion is transmitted between the friction lining 32 and the split clamping ring 33 through sliding friction. Therefore, in the process of the speed change of the crushing main shaft 13, the lifting and lowering motion of the crushing main shaft 13 can still remain basically stable, thereby greatly improving the active adjustment range of the speed of the crushing main shaft 13; while still using the rotation of the crushing main shaft 13 as the driving force, it avoids the problem of excessive vibration of the equipment when the speed of the crushing main shaft 13 is too fast, and too few longitudinal impacts of the grinding roller 11 when the speed of the crushing main shaft 13 is too slow.

[0053] The elastic energy storage assembly 29 includes a fixed top plate 34, an energy storage spring 35 and a stirring rod 21. The fixed top plate 34 is fixedly connected to the profile frame 49. The top rotation of the crushing spindle 13 is arranged in the fixed top plate 34. The energy storage spring 35 is arranged between the fixed top plate 34 and the top spring baffle 26. The stirring rod 21 is fixedly connected to the side of the fixed top plate 34.

[0054] Since the protruding rod of the split clamping ring 33 slides in the spiral groove 36, during the rotation of the split clamping ring 33, the split clamping ring 33 can be lifted up together with the crushing main shaft 13 and compress the energy storage spring 35 to continue the elastic force. When the protruding rod of the split clamping ring 33 moves to the vertical groove of the spiral groove 36, the crushing main shaft 13 will drop rapidly under the elastic force of the energy storage spring 35, thereby the material is longitudinally squeezed and crushed through the shoulder of the first crushing part 22 and the bottom retaining edge 20, thereby avoiding the longitudinal size of the fragments exceeding the standard.

[0055] The adaptive feeding mechanism 3 includes a feeding transmission assembly 38 and a quantitative feeding assembly 39 . The feeding transmission assembly 38 is rotatably arranged in the profile frame 49 , and the quantitative feeding assembly 39 is arranged on the main driving mechanism 4 .

[0056] The feeding transmission assembly 38 includes a synchronous transmission assembly 40 and a transmission worm 41 . The transmission worm 41 is rotatably disposed in the fixed top plate 34 . The synchronous transmission assembly 40 is disposed between the top of the crushing main shaft 13 and the transmission worm 41 .

[0057] The quantitative feeding assembly 39 includes a rotating support frame 42 and a rotating feeding hopper 43. The rotating support frame 42 is fixedly connected to the main driving mechanism 4. A feed baffle 44 and a discharge baffle 45 are respectively provided at both ends of the rotating support frame 42. The feed baffle 44 is provided with a notch located at the top, and the discharge baffle 45 is provided with a notch located at the bottom. The rotating feeding hopper 43 is rotatably arranged in the rotating support frame 42. A feed notch 46 and a discharge notch 47 are respectively provided at both ends of the rotating feeding hopper 43. A worm gear part 48 is provided on the outside of the rotating feeding hopper 43, and the worm gear part 48 is meshed with the transmission worm 41 for transmission.

[0058] Through the rotational movement of the rotating feed hopper 43, the material can be supplied intermittently, and because the two ends of the rotating feed hopper 43 are not opened at the same time, the actual supply amount of the material is related to the rotation speed of the rotating feed hopper 43. Therefore, through the linkage of the synchronous transmission assembly 40, not only the structure can be simplified, but also the material supply rate and the crushing rotation speed can be matched with each other.

[0059] like Fig.13 As shown in the figure, it is a top view of the grinding and crushing area, and the arrow is the direction of material movement; the notch area of ​​the flexible retaining ring 12 is N, so the fragments crushed in the first crushing process will not fall in the M and L areas, and will only fall from the notch of the flexible retaining ring 12 when following the rotation of the grinding roller 11 to the N area; the notch area of ​​the bottom retaining edge 20 is M, and the material falling into the second crushing process will continue to follow the rotation in the N and L areas, and will fall from the notch of the bottom retaining edge 20 when moving to the M area.

[0060] When in use, the user first needs to add the material to be crushed into the silo body 57, and then start the driving motor 53. The driving motor 53 rotates the active worm 15 through the coupling 54, and the driven worm wheel 14 rotates through the meshing of the driven worm wheel 14 and the active worm 15. When the driven worm wheel 14 rotates, it can rotate with the crushing main shaft 13 through the central sleeve 27. The first crushing part 22 and the second crushing part 23 with different diameters and the conical inner wall at the bottom of the crushing inner cylinder 10 form two grinding spaces with the same gap, of which the upper one is the first crushing process and the lower one is the second crushing process; After the material enters between the grinding roller 11 and the crushing inner cylinder 10, it will first enter the area where the first crushing process is located, and then be crushed and crushed by the relative rotation of the grinding roller 11 and the crushing inner cylinder 10. The inner wall of the crushing inner cylinder 10 and the outer wall of the grinding roller 11 are provided with vertical fine lines, so that during the extrusion and crushing process, the rice is rotated along the rotation direction of the grinding roller 11, thereby avoiding the formation of flaky fragments.

[0061] Due to the obstruction of the flexible retaining ring 12, the crushed material can only fall from the area where the first crushing process is located to the area where the second crushing process is located when it moves to the gap of the flexible retaining ring 12. The transverse grinding of the second crushing process is the same as the first crushing process, but because the grinding roller 11 also has longitudinal movement during the rotation process, the second crushing process can crush the part that is not fully crushed in the first crushing process (when the grinding roller 11 is raised and lowered, the gap of the first crushing process is actually changing).

[0062] When the crushing main shaft 13 rotates, the sliding friction between the friction lining 32 and the split clamping ring 33 can drive the split clamping ring 33 to rotate, and the rotation speed of the split clamping ring 33 is not greatly affected by the rotation speed of the crushing main shaft 13. When the split clamping ring 33 rotates, the sliding of its own convex rod in the spiral groove 36 can drive the crushing main shaft 13 and the grinding roller 11 to move up and down together; After the split clamping ring 33 rotates one circle, the elastic force of the energy storage spring 35 decreases rapidly. At this time, the material can be longitudinally squeezed and crushed by the extrusion of the shoulder of the first crushing part 22 and the bottom retaining edge 20; on the basis of avoiding the formation of thin flake fragments, the longitudinal extrusion can also avoid the formation of long strip fragments.

[0063] The material entering the second crushing process will move a certain distance under the state of extrusion, rotation and longitudinal impact until it enters the notch of the bottom rib 20. If the fragments meet the size requirements, they will fall from the notch of the bottom rib 20, thus completing the crushing.

[0064] During the continuous crushing process, the crushing main shaft 13 can rotate with the transmission worm 41 through the synchronous transmission assembly 40. Due to the engagement of the transmission worm 41 and the worm wheel part 48, the rotating feed hopper 43 will also rotate continuously; when the gap of the feed baffle 44 overlaps with the feed gap 46, the gap of the discharge baffle 45 and the discharge gap 47 do not overlap. At this time, the material in the silo body 57 enters the rotating feed hopper 43 through the gap of the feed baffle 44 and the feed gap 46; when the gap of the discharge baffle 45 overlaps with the discharge gap 47, when the gap of the feed baffle 44 and the feed gap 46 do not overlap, at this time, the material in the rotating feed hopper 43 enters the crushing inner cylinder 10 through the gap of the discharge baffle 45 and the discharge gap 47; the feeding speed of the adaptive feeding mechanism 3 is positively correlated with the rotation speed of the crushing main shaft 13.

[0065] When the grinding roller 11 rotates with the material in the crushing inner cylinder 10, the fixed and elastic stirring rod 21 can flatten and stir the material in the crushing inner cylinder 10 to make it more evenly distributed.

[0066] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0067] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A rice grinding device for crushing rice, comprising a main body driving mechanism (4), the main body driving mechanism (4) comprising a main body bottom plate (56) and a profile frame (49), the profile frame (49) being arranged on the main body bottom plate (56), characterized in that: It also comprises a hammer-type rotary crushing mechanism (1), an asynchronous linkage hammer mechanism (2) and an adaptive feeding mechanism (3), wherein the hammer-type rotary crushing mechanism (1) is arranged on the main driving mechanism (4), the asynchronous linkage hammer mechanism (2) is arranged in the hammer-type rotary crushing mechanism (1), and the adaptive feeding mechanism (3) is arranged on the main driving mechanism (4); The hammer-type rotary crushing mechanism (1) comprises a crushing barrel support assembly (5), a grinding and crushing assembly (6) and a rotary transmission assembly (7); the crushing barrel support assembly (5) is arranged on a main driving mechanism (4); the grinding and crushing assembly (6) is arranged on the main driving mechanism (4); and the rotary transmission assembly (7) is rotatably arranged in the crushing barrel support assembly (5); The asynchronous linkage hammer mechanism (2) comprises a lifting control component (28) and an elastic energy storage component (29), wherein the lifting control component (28) is engaged with the crushing barrel support component (5), and the elastic energy storage component (29) is arranged on the profile frame (49); The adaptive feeding mechanism (3) comprises a feeding transmission assembly (38) and a quantitative feeding assembly (39); the feeding transmission assembly (38) is rotatably disposed in a profile frame (49); and the quantitative feeding assembly (39) is disposed on a main driving mechanism (4).

2. A rice grinding device for crushing rice according to claim 1, characterized in that: The crushing cylinder support assembly (5) comprises a bottom support cylinder (8), a crushing outer cylinder (9) and a crushing inner cylinder (10); the bottom support cylinder (8) comprises a circular ring portion (17), an inner lining portion (18) and a straight cylinder portion (19); the crushing outer cylinder (9) and the bottom support cylinder (8) are fixedly connected; the crushing inner cylinder (10) and the crushing outer cylinder (9) are fixedly connected; the inner lining portion (18) is located between the crushing outer cylinder (9) and the crushing inner cylinder (10); a bottom retaining edge (20) is provided at the bottom of the crushing inner cylinder (10); and a notch is provided on the bottom retaining edge (20).

3. A rice grinding device according to claim 2, characterized in that: The grinding and crushing assembly (6) comprises a grinding roller (11), a flexible retaining ring (12) and a crushing spindle (13); the grinding roller (11) and the crushing spindle (13) are fixedly connected; a first crushing portion (22) and a second crushing portion (23) having different diameters are sequentially arranged at the bottom of the grinding roller (11); the flexible retaining ring (12) is fixedly connected to the crushing inner cylinder (10); a notch is arranged on the flexible retaining ring (12); the notch of the bottom retaining edge (20) and the notch of the flexible retaining ring (12) do not overlap in vertical projection; a polygonal bottom boss (24) is arranged at the bottom of the crushing spindle (13); an annular groove portion (25) is arranged on the crushing spindle (13); and a top spring baffle (26) is also arranged at the top of the crushing spindle (13).

4. A rice grinding device for crushing rice according to claim 3, characterized in that: The rotary transmission assembly (7) comprises a driven worm wheel (14), a driving worm (15) and a worm bearing (16); the driven worm wheel (14) is rotatably disposed in the annular portion (17); a polygonal center sleeve (27) is provided at the center of the driven worm wheel (14); the bottom boss (24) is slidably engaged in the center sleeve (27); the driving worm (15) is rotatably disposed in the straight tube portion (19); the worm bearing (16) is disposed between the driving worm (15) and the straight tube portion (19); and the driven worm wheel (14) and the driving worm (15) are meshed for transmission.

5. A rice grinding device for crushing rice according to claim 4, characterized in that: The lifting control assembly (28) comprises a fixed ring (30), an annular guide rail (31), a friction lining (32) and a split clamping ring (33), wherein the fixed ring (30) is fixedly connected to the inner wall of the crushing inner cylinder (10), the annular guide rail (31) is fixedly connected to the fixed ring (30), a spiral groove (36) is provided on the inner wall of the annular guide rail (31), the spiral angle of the spiral groove (36) is 360 degrees, the two ends of the spiral groove (36) are connected by a vertical groove, and the friction lining (32) is fixedly connected to the inner wall of the crushing inner cylinder (10). The split clamping ring (33) is connected to the annular groove (25), and is composed of two parts hinged to each other. The split clamping ring (33) is wrapped around the outside of the friction lining (32). The split clamping ring (33) is locked by bolts. A cylindrical protruding rod is provided on the outside of the split clamping ring (33), and the protruding rod is slidably arranged in the spiral groove (36). The split clamping ring (33) is located in the annular groove (25), and the friction lining (32) and the split clamping ring (33) can rotate relative to each other.

6. A rice grinding device for crushing rice according to claim 5, characterized in that: The elastic energy storage assembly (29) comprises a fixed top plate (34), an energy storage spring (35) and a stirring rod (21); the fixed top plate (34) is fixedly connected to the profile frame (49); the top of the crushing spindle (13) is rotatably arranged in the fixed top plate (34); the energy storage spring (35) is arranged between the fixed top plate (34) and the top spring baffle (26); and the stirring rod (21) is fixedly connected to the side of the fixed top plate (34).

7. A rice grinding device for crushing rice according to claim 6, characterized in that: The feeding transmission assembly (38) comprises a synchronous transmission assembly (40) and a transmission worm (41), wherein the transmission worm (41) is rotatably disposed in the fixed top plate (34), and the synchronous transmission assembly (40) is disposed between the top of the crushing main shaft (13) and the transmission worm (41).

8. A rice grinding device for crushing rice according to claim 7, characterized in that: The quantitative feeding assembly (39) comprises a rotating support frame (42) and a rotating feeding hopper (43), wherein the rotating support frame (42) is fixedly connected to the main driving mechanism (4), and a feeding baffle (44) and a discharging baffle (45) are respectively provided at two ends of the rotating support frame (42), wherein the feeding baffle (44) is provided with a notch located at the top, and the discharging baffle (45) is provided with a notch located at the bottom, and the rotating feeding hopper (43) is rotatably arranged in the rotating support frame (42), and a feeding notch (46) and a discharging notch (47) are respectively provided at two ends of the rotating feeding hopper (43), and a worm gear portion (48) is provided on the outside of the rotating feeding hopper (43), and the worm gear portion (48) and the transmission worm (41) are meshed for transmission.

9. A rice grinding device for crushing rice according to claim 8, characterized in that: The main body drive mechanism (4) further comprises a main drive assembly (50) and a silo assembly (51); the main drive assembly (50) comprises a motor mounting platform (52), a drive motor (53), a coupling (54) and a straight-tube bracket (55); the motor mounting platform (52) is arranged on a main body bottom plate (56); the drive motor (53) is arranged on the motor mounting platform (52); the coupling (54) is arranged between an output shaft of the drive motor (53) and an active worm (15); the straight-tube bracket (55) is sleeved on the straight-tube portion (19); the straight-tube bracket (55) is fixedly connected to the motor mounting platform (52); and the silo assembly (51) is arranged on a profile frame (49).

10. A rice grinding device for crushing rice according to claim 9, characterized in that: The silo assembly (51) comprises a silo body (57), a lifting plate (58) and a lifting electric cylinder (59); the silo body (57) is arranged on a profile frame (49); the rotating support frame (42) is fixedly connected to a side of a material discharge notch (47); the lifting plate (58) is slidably engaged in the silo body (57); and the lifting electric cylinder (59) is arranged between the silo body (57) and the lifting plate (58).

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