Multi-stage grain crushing mechanism

Abstract

The utility model discloses a multistage grain crushing mechanism which comprises a crushing bin, the front face of the crushing bin is fixedly connected with a feeding pipe, one end of the feeding pipe penetrates through and extends to the inner side of the crushing bin, the lower end of the crushing bin is conical, and a discharging hole is formed in the conical end of the crushing bin; a crushing part for crushing grains is arranged on the crushing bin; the smashing part comprises a supporting bin fixedly connected to the inner wall of the smashing bin, the discharging end of the feeding pipe penetrates through and extends into the supporting bin, and the inner wall of the supporting bin is rotationally connected with a first rotating shaft and a second rotating shaft correspondingly. According to the utility model, the top crushing roller and the bottom crushing roller which are supported by a group of the first rotating shaft and the second rotating shaft in the supporting bin are used for performing multi-stage crushing on grains guided into the supporting bin, and meanwhile, the crushed grains can be rotationally screened by matching the rotating ring with the screen and the material guide frame; and the screened grains can be sent back into the supporting bin again to be smashed again, so that the grain smashing effect and smashing efficiency are improved.

Description

Technical Field

[0001] This utility model relates to the field of grain processing technology, and in particular to a multi-stage grain crushing mechanism. Background Technology

[0002] Grains refer to the general term for various plant seeds used in cooking, and can also be broadly referred to as "cereals". Grain crops are rich in nutrients, mainly protein, vitamins, dietary fiber, fat, starch and so on.

[0003] A grain crushing mechanism is a primary processing device for crushing grains and plays a vital role in grain processing. For example, utility model CN212595952U discloses a grain crushing device including a screening box, a crushing box fixedly installed on top of the screening box, a feed hopper fixedly installed on top of the crushing box, the feed hopper communicating with the interior of the crushing box, a first crushing roller rotatably connected inside the crushing box, a second crushing roller rotatably connected to the end of the crushing box away from the first crushing roller, and a servo motor fixedly installed on one side of the crushing box. This utility model, by incorporating an L-shaped vibrating screen, allows grain powder conforming to particle size standards to fall through the screen holes and then into a second storage box via a first feeding chute. Simultaneously, grain powder not conforming to particle size standards falls from the second feeding chute into the first storage box, facilitating further processing.

[0004] However, the crushing device in the above application only crushes grain a single time. Therefore, unqualified grain after crushing and screening needs to be put back into the crushing device for crushing again, which affects the grain processing efficiency. Therefore, a multi-stage grain crushing mechanism is proposed to solve the above problems. Utility Model Content

[0005] (a) Purpose of the utility model

[0006] To address the technical problems existing in the background art, this utility model proposes a multi-stage grain crushing mechanism. Through the crushing components on the crushing chamber and the guide components, it can crush grain in multiple stages, automatically screen the crushed grain, and guide it back into the crushing components for further crushing. It has the advantages of improving crushing effect and crushing efficiency.

[0007] (II) Technical Solution

[0008] This utility model provides a multi-stage grain crushing mechanism, including a crushing chamber. A feed pipe with one end penetrating through and extending to the inside of the crushing chamber is fixedly connected to the front of the crushing chamber. The lower end of the crushing chamber is conical, and a discharge hole is opened at the conical end.

[0009] The crushing chamber is equipped with a crushing component for grain crushing;

[0010] The crushing component includes a support chamber fixedly connected to the inner wall of the crushing chamber. The discharge end of the feed pipe passes through and extends into the support chamber. A set of first rotating shafts and a set of second rotating shafts are rotatably connected to the inner wall of the support chamber. A top crushing roller located inside the support chamber is fixedly connected to each set of first rotating shafts. A bottom crushing roller located inside the support chamber is fixedly connected to each set of second rotating shafts. Guide holes are provided at the top and bottom of the support chamber. Two guide plates are fixedly connected to the inner wall of the support chamber and located between the top crushing roller and the bottom crushing roller.

[0011] The grinding chamber is equipped with a guide for guiding the grain.

[0012] The material guiding component includes a rotating ring rotatably connected to the inner wall of the crushing chamber and covering the outer side of the support chamber. Several material guiding frames are fixedly connected to the inner peripheral wall of the rotating ring, and several screens are installed on the inner peripheral wall of the rotating ring.

[0013] The back of the crushing chamber is provided with driving components that drive the first rotating shaft, the second rotating shaft, and the rotating ring to rotate respectively.

[0014] Preferably, the support chamber is cylindrical, and the two guide plates are symmetrically distributed on the inner wall of the support chamber, and the guide plates are inclined.

[0015] Preferably, a set of sliders is fixedly connected to both the front and rear sides of the rotating ring, and the inner wall of the crushing chamber is provided with a sliding groove for the sliders to slide. The number and orientation of the several screens correspond one-to-one with the material guide frame.

[0016] Preferably, the inner wall of the rotating ring is provided with mounting holes for installing the screen, and the mounting holes are connected to the guide frame. The guide frame is U-shaped, and several guide frames are fitted together end to end.

[0017] Preferably, the driving component includes a drive motor fixedly connected to the back of the crushing chamber, the output shaft of the drive motor passing through and extending into the crushing chamber, and a drive gear fixedly connected to the output shaft of the drive motor. A rack is fixedly connected to the outer surface of the rotating ring near the drive motor, and the rack meshes with the drive gear.

[0018] Preferably, the driving component further includes a crushing motor, which is fixedly connected to the back of the crushing chamber, and the output shaft of the crushing motor is fixedly connected to one end of the first rotating shaft on the right side. The ends of the first rotating shaft and the second rotating shaft near the driving motor both penetrate the crushing chamber. A set of the first rotating shafts is fixedly connected to a driving gear that meshes with each other at the end of the end of the crushing chamber, and a set of the second rotating shafts is fixedly connected to a driven gear that meshes with each other at the end of the end of the end of the crushing chamber. A transmission assembly is provided between the first rotating shaft and the second rotating shaft on the left side.

[0019] Preferably, the transmission assembly consists of two pulleys and a transmission belt. The two pulleys are respectively fixedly connected to one end of the left first rotating shaft and the second rotating shaft that passes through the crushing chamber, and the transmission belt is sleeved on the two pulleys.

[0020] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects:

[0021] This multi-stage grain crushing mechanism uses a set of first and second rotating shafts in the support chamber to support the top and bottom crushing rollers to crush the grain guided into the support chamber in multiple stages. At the same time, the crushed grain can be rotated and screened by a rotating ring in conjunction with a screen and a guide frame. The unscreened grain can be sent back to the support chamber for re-crushing, thereby improving the grain crushing effect and crushing efficiency. Attached Figure Description

[0022] Figure 1 This is a perspective view of the overall structure of this utility model;

[0023] Figure 2 This is a rear sectional view of the overall structure of this utility model;

[0024] Figure 3 This is a schematic diagram of the crushing component of this utility model;

[0025] Figure 4 This is a schematic diagram of the material guide component of this utility model.

[0026] Reference numerals: 1. Crushing chamber; 2. Feed pipe; 3. Crushing component; 31. Support chamber; 32. First rotating shaft; 33. Second rotating shaft; 34. Top crushing roller; 35. Bottom crushing roller; 36. Guide hole; 4. Guide component; 41. Rotating ring; 42. Guide frame; 43. Screen; 44. Sliding block; 5. Driving component; 51. Drive motor; 52. Drive gear; 53. Crushing motor; 54. Drive gear; 55. Driven gear; 56. Transmission assembly; 57. Rack. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0028] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, such as welding, riveting, or bonding; it can also be a detachable connection, such as threaded connection, keyed connection, or pin connection; or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; or it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] like Figure 1-4 As shown, the present invention proposes a multi-stage grain crushing mechanism, including a crushing chamber 1. A feed pipe 2 is fixedly connected to the front of the crushing chamber 1, with one end penetrating and extending to its inner side. The lower end of the crushing chamber 1 is conical, and a discharge hole is opened at its conical end.

[0031] The crushing chamber 1 is equipped with a crushing component 3 for crushing grain;

[0032] The crushing chamber 1 is equipped with a guide component 4 for guiding the grain.

[0033] In this invention, the crushing component 3 on the crushing chamber 1, together with the material guide 4, can crush grain in multiple stages, and can also automatically screen the crushed grain and guide it back into the crushing component 3 for further crushing.

[0034] In an optional embodiment, the crushing component 3 includes a support chamber 31 fixedly connected to the inner wall of the crushing chamber 1. The discharge end of the feed pipe 2 passes through and extends into the support chamber 31. A set of first rotating shafts 32 and second rotating shafts 33 are rotatably connected to the inner wall of the support chamber 31. A top crushing roller 34 located inside the support chamber 31 is fixedly connected to each of the first rotating shafts 32. A bottom crushing roller 35 located inside the support chamber 31 is fixedly connected to each of the second rotating shafts 33. Guide holes 36 are provided at the top and bottom of the support chamber 31. Two guide plates 37 are fixedly connected to the inner wall of the support chamber 31 and located between the top crushing roller 34 and the bottom crushing roller 35.

[0035] In this embodiment, the grain guided into the support chamber 31 is subjected to multi-stage crushing by a top crushing roller 34 and a bottom crushing roller 35 supported by a set of first rotating shafts 32 and second rotating shafts 33 in the support chamber 31.

[0036] It should be noted that the support chamber 31 is cylindrical, and two guide plates 37 are symmetrically distributed on the inner wall of the support chamber 31. The guide plates 37 are inclined. Through the two inclined and symmetrically distributed guide plates 37 located between the top crushing roller 34 and the bottom crushing roller 35, the grain crushed by the two top crushing rollers 34 can be guided to the two bottom crushing rollers 35.

[0037] The feed pipe 2 is located at one end inside the support chamber 31, above the two top crushing rollers 34.

[0038] In an optional embodiment, the guide member 4 includes a rotating ring 41 rotatably connected to the inner wall of the crushing chamber 1 and covering the outer side of the support chamber 31. A plurality of guide frames 42 are fixedly connected to the inner peripheral wall of the rotating ring 41, and a plurality of screens 43 are installed on the inner peripheral wall of the rotating ring 41.

[0039] In this embodiment, the pulverized grain can be rotated and screened by the rotating ring 41 in conjunction with the screen 43 and the guide frame 42. The unscreened grain can be sent back into the support chamber 31 for pulverization again.

[0040] It should be noted that a set of sliders 44 are fixedly connected to both the front and rear sides of the rotating ring 41. The inner wall of the crushing chamber 1 is provided with a sliding groove for the sliders 44 to slide. The number and position of several screens 43 correspond one-to-one with those of the guide frame 42, so that when the guide frame 42 receives the crushed grain to its inner side during the rotation process, it can be rotated and screened by the corresponding and rotating screens 43.

[0041] The inner wall of the rotating ring 41 is provided with mounting holes for the screen 43 to be installed, and the mounting holes are connected to the guide frame 42. The guide frame 42 is U-shaped, and several guide frames 42 are fitted together end to end, so that several fitted guide frames 42 can receive the grain discharged from the guide hole 36 below the support chamber 31. The screened grain can be sent back into the support chamber 31 through the guide hole 36 above the support chamber 31 during the rotation process, and the side of several guide frames 42 away from the rotating ring 41 is fitted with the outer surface of the support chamber 31.

[0042] In an optional embodiment, the back of the crushing chamber 1 is provided with a driving component 5 that drives the first rotating shaft 32, the second rotating shaft 33 and the rotating ring 41 to rotate respectively. The driving component 5 includes a driving motor 51 fixedly connected to the back of the crushing chamber 1. The output shaft of the driving motor 51 passes through and extends into the crushing chamber 1, and a driving gear 52 is fixedly connected to the output shaft of the driving motor 51. A rack 57 is fixedly connected to the outer surface of the rotating ring 41 near the end of the driving motor 51, and the rack 57 meshes with the driving gear 52.

[0043] In this embodiment, when the starting drive motor 51 drives the drive gear 52 to rotate, the meshing drive gear 52 and rack 57 can drive the rotating ring 41 to rotate stably in the crushing chamber 1.

[0044] In an optional embodiment, the drive component 5 further includes a crushing motor 53, which is fixedly connected to the back of the crushing chamber 1. The output shaft of the crushing motor 53 is fixedly connected to one end of the right first rotating shaft 32. The ends of the first rotating shaft 32 and the second rotating shaft 33 near the drive motor 51 both penetrate the crushing chamber 1. A set of first rotating shafts 32 are fixedly connected to a driving gear 54 that meshes with each other at the end of the end of the crushing chamber 1. A set of second rotating shafts 33 are fixedly connected to a driven gear 55 that meshes with each other at the end of the end of the end of the crushing chamber 1. A transmission component 56 is provided between the left first rotating shaft 32 and the second rotating shaft 33.

[0045] In this embodiment, after the starting crushing motor 53 drives the right drive gear 54 to rotate, it can drive a set of first rotating shafts 32 and top crushing rollers 34 to rotate synchronously in opposite directions through two meshing drive gears 54. The rotating left drive gear 54 can also drive the driven gear 55 on the same side to rotate synchronously through the transmission assembly 56, so as to drive the two meshing driven gears 55 to rotate synchronously in opposite directions, so as to drive the bottom crushing rollers 35 on the second rotating shaft 33 to rotate synchronously.

[0046] It should be noted that the transmission assembly 56 consists of two pulleys and a transmission belt. The two pulleys are fixedly connected to the ends of the first rotating shaft 32 and the second rotating shaft 33 on the left side that pass through the crushing chamber 1, respectively, and the transmission belt is sleeved on the two pulleys.

[0047] The control method of this utility model is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art, which is common knowledge in the field. Since this utility model is mainly used to protect mechanical structures, the control method and circuit connection and other technical means will not be described in detail here.

[0048] The working principle in the above embodiments is as follows:

[0049] When the starting drive motor 51 drives the drive gear 52 to rotate, it can drive the rotating ring 41 to rotate stably in the crushing chamber 1 through the meshing of the drive gear 52 and the rack 57. After the starting crushing motor 53 drives the right drive gear 54 to rotate, it can drive a set of first rotating shafts 32 and top crushing rollers 34 to rotate synchronously in opposite directions through the two meshing drive gears 54. The rotating left drive gear 54 can also drive the driven gear 55 on the same side to rotate synchronously through the transmission assembly 56, so as to drive the two meshing driven gears 55 to rotate synchronously in opposite directions, so as to drive the bottom crushing rollers 35 on the second rotating shaft 33 to rotate synchronously.

[0050] Therefore, after the grain to be crushed is fed into the feed pipe 2, the rotating top crushing roller 34 and bottom crushing roller 35 can double crush the grain that is fed in and falls. At the same time, the crushed grain can fall out of the support chamber 31 through the guide hole 36 below the support chamber 31. The guide frame 42 on the rotating ring 41 catches the grain during the rotation process, so that the crushed grain falls into the guide frame 42 and is rotated and screened by the screen 43 corresponding to each guide frame 42. The grain that is not screened by the screen 43 can be brought back to the guide hole 36 above the support chamber 31 by the guide frame 42 during the rotation process, and fall into the support chamber 31 again, where it is crushed again by the top crushing roller 34 and bottom crushing roller 35 until it is completely crushed. After being screened by the screen 43, it falls out of the crushing chamber 1, thus completing the crushing and screening of the grain each time.

[0051] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-stage grain crushing mechanism comprising a crushing bin (1), characterized in that: The front of the crushing bin (1) is fixedly connected with a feeding pipe (2) which penetrates one end and extends to the inside of the crushing bin (1), the lower end of the crushing bin (1) is conical, and a discharge hole is formed in the conical end of the crushing bin (1); The crushing bin (1) is provided with a crushing piece (3) for crushing grains; The crushing piece (3) comprises a support bin (31) fixedly connected to the inner wall of the crushing bin (1), the discharge end of the feeding pipe (2) penetrates and extends into the support bin (31), the inner wall of the support bin (31) is rotatably connected with a group of first rotating shafts (32) and second rotating shafts (33), respectively, a group of the first rotating shafts (32) are fixedly connected with top crushing rollers (34) located inside the support bin (31), a group of the second rotating shafts (33) are fixedly connected with bottom crushing rollers (35) located inside the support bin (31), the upper and lower parts of the support bin (31) are provided with guide holes (36), respectively, and the inner wall of the support bin (31) is fixedly connected with two guide plates (37) located between the top crushing rollers (34) and the bottom crushing rollers (35). The crushing bin (1) is provided with a guide piece (4) for guiding grains The guide piece (4) comprises a rotating ring (41) rotatably connected to the inner wall of the crushing bin (1) and covering the outside of the support bin (31), the inner circumferential wall of the rotating ring (41) is fixedly connected with a plurality of guide frames (42), and the inner circumferential wall of the rotating ring (41) is provided with a plurality of screen meshes (43). The back of the crushing bin (1) is provided with a driving piece (5) for driving the first rotating shafts (32), the second rotating shafts (33) and the rotating ring (41) to rotate, respectively.

2. A multi-stage grain pulverizing mechanism according to claim 1, characterized in that, The support bin (31) is cylindrical, and the two guide plates (37) are symmetrically distributed on the inner wall of the support bin (31) and are inclined.

3. A multi-stage grain pulverizing mechanism according to claim 1, wherein The front and back sides of the rotating ring (41) are fixedly connected with a group of sliding blocks (44), the inner wall of the crushing bin (1) is provided with a sliding groove for the sliding blocks (44) to slide, and the number and orientation of the plurality of screen meshes (43) and guide frames (42) correspond one by one.

4. A multi-stage grain pulverizing mechanism according to claim 1, wherein The inner wall of the rotating ring (41) is provided with mounting holes for mounting the screen meshes (43), and the mounting holes are in communication with the guide frames (42), the guide frames (42) are mouth-shaped, and the plurality of guide frames (42) are mutually attached between the head and tail.

5. A multi-stage grain pulverizing mechanism according to claim 1, wherein The driving piece (5) comprises a driving motor (51) fixedly connected to the back of the crushing bin (1), the output shaft of the driving motor (51) penetrates and extends into the crushing bin (1), and the output shaft of the driving motor (51) is fixedly connected with a driving gear (52), the outer surface of one end of the rotating ring (41) close to the driving motor (51) is fixedly connected with a rack (57), and the rack (57) and the driving gear (52) are in meshing engagement.

6. A multi-stage grain crushing mechanism as claimed in claim 5, wherein, The drive unit (5) also includes a crushing motor (53), which is fixedly connected to the back of the crushing chamber (1). The output shaft of the crushing motor (53) is fixedly connected to one end of the first rotating shaft (32) on the right side. The ends of the first rotating shaft (32) and the second rotating shaft (33) near the drive motor (51) both pass through the crushing chamber (1). A set of first rotating shafts (32) are fixedly connected to a driving gear (54) that meshes with each other at one end of the crushing chamber (1). A set of second rotating shafts (33) are fixedly connected to a driven gear (55) that meshes with each other at one end of the crushing chamber (1). A transmission assembly (56) is provided between the first rotating shaft (32) and the second rotating shaft (33) on the left side.

7. A multi-stage grain crushing mechanism as claimed in claim 6, wherein, The transmission assembly (56) consists of two pulleys and a transmission belt. The two pulleys are respectively fixedly connected to one end of the first rotating shaft (32) and the second rotating shaft (33) on the left side, which pass through the crushing chamber (1). The transmission belt is sleeved on the two pulleys.

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