Graded grinding equipment for agricultural product grain processing

Abstract

The invention relates to the technical field of grain grinding, and discloses agricultural product grain processing and grading grinding equipment which comprises a grinding cylinder and further comprises a discharging hopper fixedly connected to the upper portion of the grinding cylinder and used for adding grains into the grinding cylinder; the discharging barrel is fixedly connected to the right side of the grinding barrel and used for discharging ground grains; the bracket is fixedly connected to the bottom of the grinding cylinder; the grinding and discharging mechanism is arranged in the grinding cylinder and is used for discharging and grinding the grains; and the crushing mechanism is arranged in the grinding cylinder. Through the arranged grinding and discharging mechanism, grains in a discharging hopper are rotated through a rotating conical cylinder and are rotationally crushed and discharged along a gap between the rotating conical cylinder and a fixed conical cylinder, and meanwhile the ground grains are separated out through a ventilation net, so that primary grain separation is achieved; and the situation that high-fraction oxidation of the grains is caused by repeated grinding of the grains, and the quality of the ground grains is not improved is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of grain grinding, in particular to agricultural product grain processing and grading grinding equipment. Background Art

[0002] Grain grinding is an important process for processing grains into powder or other forms. It is widely used in food processing, feed production and other fields. Traditional grain grinding technology mainly relies on tools such as stone mills to crush grains through physical friction.

[0003] For example, a grain grading and grinding device for agricultural products is disclosed in the announcement number CN117583067B, comprising a bottom plate, a support frame is fixedly connected to the bottom plate, a grinding barrel and a barrel cover are fixedly connected to the support frame, and a feed port is provided on the barrel cover; a first grinding mechanism is provided in the grinding barrel, and the first grinding mechanism is used for preliminary grinding of grains fed from the feed port; a partition plate is fixedly connected to the inside of the grinding barrel, a conveying mechanism is provided at the upper position of the partition plate, and the conveying mechanism is used for conveying all grains that have not been fully ground by the first grinding mechanism to the position above the first grinding mechanism for repeated grinding; a second grinding mechanism is provided at the bottom position of the partition plate, and the second grinding mechanism is used for batch grinding of grains ground by the first grinding mechanism; the device can crush all grains that have not been completely crushed again, and can also grind the completely crushed grains in batches.

[0004] However, when the above-mentioned grinding device grinds the grains, the grains are ground in batches. However, when grinding the grains, repeated grinding of the grains will accelerate the high-grade oxidation of the grains, which is not conducive to the quality of the grains after grinding. Therefore, an agricultural product grain processing and grading grinding equipment is proposed to solve the above-mentioned problems. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a grain processing and grading grinding device for agricultural products in view of the deficiencies in the above-mentioned prior art.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: an agricultural product grain processing and grading grinding device, including a grinding cylinder, and also including:

[0007] A lower hopper, fixedly connected above the grinding cylinder, for adding grains into the grinding cylinder;

[0008] A discharge cylinder, fixedly connected to the right side of the grinding cylinder, for discharging the ground grains;

[0009] A bracket, fixedly connected to the bottom of the grinding cylinder;

[0010] A grinding and discharging mechanism is arranged inside the grinding cylinder and is used for discharging and grinding grains;

[0011] A crushing mechanism is arranged inside the grinding cylinder and below the grinding and discharging mechanism, and is used for crushing grains;

[0012] Wherein, the grinding and discharging mechanism comprises:

[0013] A rotating cone, wherein the upper outer wall of the rotating cone is rotatably connected to the grinding cylinder through a bearing;

[0014] A rotating shaft, rotatably connected to the bottom of the grinding cylinder through a bearing;

[0015] Two upper connecting rods are symmetrically and fixedly connected to the inner wall of the lower hopper, and the other ends are rotatably connected to the upper part of the outer wall of the rotating shaft through bearings;

[0016] The fixed cone cylinder is arranged inside the grinding cylinder and is rotatably connected to the rotating shaft through a bearing. The fixed cone cylinder and the rotating cone cylinder are arranged at intervals and are used for grinding and crushing grains.

[0017] Preferably, the outer wall of the fixed cone is provided with a plurality of feed troughs for conducting the grains in the feed hopper to enter the grinding cylinder through the feed troughs;

[0018] The outer wall of the fixed cone is also provided with a plurality of grinding grooves, which are respectively located on both sides of each material discharge trough;

[0019] A plurality of grinding rods are fixedly connected to the inner wall of the rotating cone, and the grinding rods are connected to the inner wall of the rotating cone with a grinding groove at intervals, and fit into the grinding groove when rotating to grind grains.

[0020] Preferably, the grinding and discharging mechanism further comprises:

[0021] A plurality of material guide rods are arranged on the outer wall of the fixed cone;

[0022] A rotating ring, rotatably connected to the outer wall of the fixed cone, and fixedly connected to the material guide rod, for driving the material guide rod to rotate;

[0023] A grinding block 1 is fixedly connected to the inner wall of the grinding cylinder, and the rotating cone cylinder and the guide rod rotate relative to the grinding block 1;

[0024] A plurality of discharge holes, equally divided and arranged on the first grinding block, for discharging the grains after preliminary grinding;

[0025] The second grinding block is arranged on the inner wall of the grinding cylinder and cooperates with the pair of grinding blocks to grind grains.

[0026] Preferably, a fixing ring is provided at the bottom of the second grinding block, and the fixing ring is fixedly connected to the outer wall of the ventilation net;

[0027] A plurality of mounting grooves are provided at the bottom of the second grinding block and the top of the fixing ring, and elastic rods are installed in the mounting grooves for pushing the second grinding block upwards to approach the first grinding block so as to grind the grains;

[0028] The grinding block 2 and the grinding block 1 are spaced apart and arranged at an inclined position with a larger upper portion and a smaller lower portion, so as to be used for grinding and discharging materials.

[0029] Preferably, the pulverizing mechanism comprises:

[0030] Multiple impact rings are fixedly connected to the inner wall of the grinding cylinder axially and at equal intervals to expand the impact angle with the grains;

[0031] A ventilation net is arranged inside the grinding cylinder, and a reinforcing rod is arranged in the middle of the ventilation net, and an annular groove is opened on the outer wall of the reinforcing rod. A plurality of guide beads are installed on the grinding block, and the guide beads roll in the annular groove;

[0032] A plurality of lower connecting rods are respectively fixedly connected between the rotating shaft and the ventilation net, and are used for driving the ventilation net to rotate.

[0033] Preferably, a material discharge bevel ring is fixedly connected to the inner wall of the grinding cylinder, and the inner wall of the grinding cylinder is in contact with the outer wall of the ventilation net;

[0034] The ventilation net is cylindrical and is provided with a plurality of vertical fixing rods, and screens are installed between the fixing rods.

[0035] Preferably, a ventilation inclined plate is fixedly connected to the inner wall of the grinding cylinder, and the lower part of the ventilation inclined plate is located on one side of the discharge cylinder for discharging the ground grains;

[0036] The blades are mounted on the outer wall of the rotating shaft and are located above the ventilation inclined plate, and are used to generate negative pressure during rotation.

[0037] Preferably, a motor is installed at the bottom of the grinding cylinder, and the output end of the motor is connected to the rotating shaft to drive the rotating shaft to rotate.

[0038] The present invention adopts the above technical solution to bring the following beneficial effects:

[0039] 1. The agricultural product grain processing and grading grinding equipment, through the grinding and discharging mechanism, rotates the grains in the discharge hopper through the rotating cone, and rotates and crushes and discharges along the gap between the rotating cone and the fixed cone, and separates the ground grains through the ventilation net to achieve preliminary separation of grains, avoiding repeated grinding of grains that leads to high oxidation of grains, which is not conducive to the quality of grains after grinding.

[0040] 2. The agricultural product grain processing and grading grinding equipment can drop the grains that do not meet the specifications after separation into the space between the grinding block 1 and the grinding block 2 through the grinding and discharging mechanism, and fully grind them. The grinding block 2 is pushed upward by the elastic rod, so that the gap between the grinding block 1 and the grinding block 2 can be adjusted to improve the grinding and crushing effect of the grains.

[0041] 3. The agricultural product grain processing and grading grinding equipment, through the crushing mechanism set up, will adsorb and separate the crushed grains through the ventilation net, while the grains that do not meet the requirements will fall down, hit the impact ring, and then rebound to the ventilation net continuously, and repeat this process, so that the grains will be fully crushed and screened out through the ventilation net, thereby improving the grading and grinding treatment of the grains. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 It is a schematic diagram of the structure of the present invention;

[0043] Figure 2 It is a schematic diagram of a partial cross-sectional structure of the present invention;

[0044] Figure 3 It is a schematic diagram of the internal cross-sectional structure of the present invention;

[0045] Figure 4 For the present invention Figure 3 The enlarged structural diagram at A in the middle;

[0046] Figure 5 For the present invention Figure 3 The enlarged structural diagram at B in the middle;

[0047] Figure 6 This is a schematic diagram of the cross-sectional structure of the grinding and discharging mechanism of the present invention;

[0048] Figure 7 For the present invention Figure 6 Enlarged structural diagram at point C in the middle.

[0049] In the figure: 1. grinding cylinder; 2. discharge hopper; 3. discharge cylinder; 4. bracket; 5. grinding and discharging mechanism; 51. rotating cone cylinder; 52. fixed cone cylinder; 53. grinding rod; 54. grinding trough; 55. discharge trough; 56. guide rod; 57. rotating ring; 58. grinding block one; 59. grinding block two; 591. fixed ring; 592. elastic rod; 593. discharge hole; 6. crushing mechanism; 61. impact ring; 62. ventilation net; 63. lower connecting rod; 64. discharge oblique ring; 65. upper connecting rod; 7. rotating shaft; 8. ventilation inclined plate; 9. blades. DETAILED DESCRIPTION

[0050] 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.

[0051] See also Figure 1-7 One embodiment of the present invention is: an agricultural product grain processing and grading grinding device, comprising a grinding cylinder 1, and also comprising:

[0052] A lower hopper 2 is fixedly connected to the upper part of the grinding cylinder 1 and is used to add grains into the grinding cylinder 1;

[0053] The discharging cylinder 3 is fixedly connected to the right side of the grinding cylinder 1 and is used for discharging the ground grains;

[0054] A bracket 4 is fixedly connected to the bottom of the grinding cylinder 1;

[0055] The grinding and discharging mechanism 5 is arranged inside the grinding cylinder 1 and is used for discharging and grinding grains;

[0056] A crushing mechanism 6 is arranged inside the grinding cylinder 1 and below the grinding and discharging mechanism 5, and is used for crushing grains;

[0057] Wherein, the grinding and discharging mechanism 5 comprises:

[0058] A rotating cone 51, wherein the upper outer wall of the rotating cone 51 is rotatably connected to the grinding cylinder 1 through a bearing;

[0059] The rotating shaft 7 is rotatably connected to the bottom of the grinding cylinder 1 through a bearing;

[0060] Two upper connecting rods 65 are symmetrically and fixedly connected to the inner wall of the lower hopper 2, and the other ends are rotatably connected to the upper part of the outer wall of the rotating shaft 7 through bearings;

[0061] The fixed cone 52 is arranged inside the grinding cylinder 1 and is rotatably connected to the rotating shaft 7 through a bearing. The fixed cone 52 and the rotating cone 51 are arranged at intervals to grind and crush the grains.

[0062] The outer wall of the fixed cone 52 is provided with a plurality of feeding grooves 55 for conducting the grains in the feeding hopper 2 to enter the grinding cylinder 1 through the feeding grooves 55;

[0063] The outer wall of the fixed cone 52 is also provided with a plurality of grinding grooves 54, which are respectively located on both sides of each material discharge groove 55;

[0064] A plurality of grinding rods 53 are fixedly connected to the inner wall of the rotating cone 51, and the plurality of grinding rods 53 are connected to the inner wall of the rotating cone 51 with a grinding groove 54 at intervals, and fit into the grinding groove 54 when rotating to grind the grains.

[0065] Working principle: When grinding grains, the grains to be ground are directly placed into the lower hopper 2, and then the motor is started to rotate through the controller. At this time, the motor will drive the rotating cone 51 to rotate, so that the grains in the lower hopper 2 fall from the bottom into the gap between the rotating cone 51 and the fixed cone 52 for rotation and crushing. First, the grains will slide down along the lower trough 55. When the rotating cone 51 rotates, it drives the grinding rod 53 to rotate, and the grains in the lower trough 55 are brought into the grinding trough 54. The gaps generated by continuous rotation and collision are used to crush the grains. At the same time, the crushed grains will slide downward along the discharge chute 55 and fall into the upper part of the grinding cylinder 1 located at the ventilation net 62. At this time, the grains will be scattered and fall between different guide rods 56, thereby dispersing the grains and falling due to gravity. In addition, since the rotating shaft 7 is driven to rotate by the motor, the blades 9 are driven to rotate, generating negative pressure suction, and the grains that meet the specifications are sucked into the interior of the ventilation net 62 through the ventilation net 62, thereby achieving preliminary separation of the grains, avoiding repeated grinding of the grains, resulting in high oxidation of the grains, which is not conducive to the quality of the grains after grinding.

[0066] See also Figure 1-7 Based on the above embodiment, in another embodiment of the present invention, the grinding and discharging mechanism 5 further includes:

[0067] A plurality of guide rods 56 are arranged on the outer wall of the fixed cone 52;

[0068] The rotating ring 57 is rotatably connected to the outer wall of the fixed cone 52 and fixedly connected to the material guide rod 56, so as to drive the material guide rod 56 to rotate;

[0069] The grinding block 58 is fixedly connected to the inner wall of the grinding cylinder 1, and the rotating cone cylinder 51 and the guide rod 56 rotate relative to the grinding block 58;

[0070] A plurality of discharge holes 593, equally divided and provided on the grinding block 1 58, for discharging the grains after preliminary grinding;

[0071] The second grinding block 59 is arranged on the inner wall of the grinding cylinder 1 and cooperates with the first grinding block 58 to grind the grains.

[0072] A fixing ring 591 is provided at the bottom of the second grinding block 59, and the fixing ring 591 is fixedly connected to the outer wall of the ventilation net 62;

[0073] A plurality of mounting grooves are provided at the bottom of the second grinding block 59 and the top of the fixing ring 591. Elastic rods 592 are installed in the mounting grooves to push the second grinding block 59 upwards to approach the first grinding block 58 so as to grind the grains.

[0074] The grinding block 2 59 and the grinding block 1 58 are spaced apart and arranged at an inclined position with a larger upper portion and a smaller lower portion for grinding and discharging materials.

[0075] Working principle: When the grains fall into the gap between the guide rods 56, they will enter the interior of the grinding block 1 58 through the discharge hole 593. At this time, the grains will slide into the gap between the grinding block 1 58 and the grinding block 2 59. At this time, the rotating ventilation net 62 drives the fixed ring 591 to rotate, thereby driving the grinding block 2 59 to rotate relative to the grinding block 1 58, so that the grains can be ground. In order to fully grind the grains, on the basis of the wavy friction gap set between the grinding block 1 58 and the grinding block 2 59, the grinding block 2 59 is pushed upward by the elastic rod 592, so that the gap between the grinding block 1 58 and the grinding block 2 59 can be adjusted to improve the grinding and crushing effect of the grains.

[0076] See also Figure 1-7 Based on the above embodiment, in another embodiment of the present invention, the crushing mechanism 6 includes:

[0077] A plurality of impact rings 61 are fixedly connected to the inner wall of the grinding cylinder 1 axially and at equal intervals to expand the impact angle with the grains;

[0078] The ventilation net 62 is arranged inside the grinding cylinder 1, and a reinforcing rod is arranged in the middle of the ventilation net 62, and an annular groove is formed on the outer wall of the reinforcing rod. The grinding block 58 is equipped with a plurality of guide beads, and the guide beads roll in the annular groove;

[0079] A plurality of lower connecting rods 63 are respectively fixedly connected between the rotating shaft 7 and the ventilation net 62 to drive the ventilation net 62 to rotate.

[0080] The inner wall of the grinding cylinder 1 is fixedly connected with a material discharge bevel ring 64, and its inner wall is in contact with the outer wall of the ventilation net 62;

[0081] The ventilation net 62 is cylindrical and is provided with a plurality of vertical fixing rods, and screens are installed between the fixing rods.

[0082] The inner wall of the grinding cylinder 1 is fixedly connected with a ventilation inclined plate 8, and the lower part of the ventilation inclined plate 8 is located on one side of the discharge cylinder 3 for discharging the ground grains;

[0083] The blades 9 are mounted on the outer wall of the rotating shaft 7 and are located above the ventilation inclined plate 8 to generate negative pressure during rotation.

[0084] A motor is installed at the bottom of the grinding cylinder 1, and the output end of the motor is connected to the rotating shaft 7 for driving the rotating shaft 7 to rotate.

[0085] Working principle: When the crushed grains slide out from the gap at the edge between grinding block 1 58 and grinding block 2 59 and fall under the fixed ring 591, the grains will be adsorbed by the negative pressure through the gaps in the ventilation net 62. At the same time, the grains that cannot be adsorbed will fall down and hit the impact ring 61, and then rebound to the ventilation net 62 continuously, and so on and so forth, so that the grains are fully crushed, screened out through the ventilation net 62, and slide down along the ventilation inclined plate 8, and discharged through the discharge barrel 3 into a storage bag installed on the outer wall of the discharge barrel 3. The storage bag is fixedly installed on the outer wall of the discharge barrel 3, not shown in the figure, for exhaust.

[0086] The present invention provides a grain processing and grading grinding device for agricultural products. There are many methods and ways to implement the technical solution. The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention. All components not specified in this embodiment can be implemented by existing technologies.

Claims

1. A grain processing and grading grinding device for agricultural products, comprising a grinding cylinder (1), characterized in that: Also includes: A lower hopper (2) is fixedly connected above the grinding cylinder (1) and is used to add grains into the grinding cylinder (1); A discharge cylinder (3) is fixedly connected to the right side of the grinding cylinder (1) and is used for discharging the ground grains; A bracket (4) is fixedly connected to the bottom of the grinding cylinder (1); A grinding and discharging mechanism (5) is arranged inside the grinding cylinder (1) and is used for discharging and grinding grains; A grinding mechanism (6) is arranged inside the grinding cylinder (1) and below the grinding and discharging mechanism (5), and is used for grinding grains; Wherein, the grinding and discharging mechanism (5) comprises: A rotating cone (51), wherein the upper outer wall of the rotating cone (51) is rotatably connected to the grinding cylinder (1) via a bearing; A rotating shaft (7) is rotatably connected to the bottom of the grinding cylinder (1) via a bearing; Two upper connecting rods (65) are symmetrically and fixedly connected to the inner wall of the lower hopper (2), and the other ends are rotatably connected to the upper part of the outer wall of the rotating shaft (7) through bearings; The fixed cone cylinder (52) is arranged inside the grinding cylinder (1) and is rotatably connected to the rotating shaft (7) via a bearing. The fixed cone cylinder (52) and the rotating cone cylinder (51) are arranged at intervals and are used to grind and crush grains.

2. The agricultural product grain processing and grading grinding equipment according to claim 1 is characterized by: The outer wall of the fixed cone cylinder (52) is provided with a plurality of feed troughs (55) for conducting the grains in the feed hopper (2) to enter the grinding cylinder (1) through the feed troughs (55); The outer wall of the fixed cone (52) is also provided with a plurality of grinding grooves (54), which are respectively located on both sides of each material discharge groove (55); A plurality of grinding rods (53) are fixedly connected to the inner wall of the rotating cone (51), and the plurality of grinding rods (53) are connected to the inner wall of the rotating cone (51) with a grinding groove (54) at intervals, and fit into the grinding groove (54) when rotating, so as to grind grains.

3. The agricultural product grain processing and grading grinding equipment according to claim 2 is characterized in that: The grinding and discharging mechanism (5) further comprises: A plurality of material guide rods (56) are arranged on the outer wall of the fixed cone cylinder (52); A rotating ring (57) is rotatably connected to the outer wall of the fixed cone (52) and is fixedly connected to the material guide rod (56) to drive the material guide rod (56) to rotate; A grinding block (58) is fixedly connected to the inner wall of the grinding cylinder (1), and the rotating cone cylinder (51) and the guide rod (56) rotate relative to the grinding block (58); A plurality of discharge holes (593), equally divided and provided on the first grinding block (58), for discharging the grains after preliminary grinding; Grinding block 2 (59) is arranged on the inner wall of the grinding cylinder (1) and cooperates with grinding block 1 (58) to grind grains.

4. The agricultural product grain processing and grading grinding equipment according to claim 3 is characterized by: A fixing ring (591) is provided at the bottom of the second grinding block (59), and the fixing ring (591) is fixedly connected to the outer wall of the ventilation net (62); A plurality of mounting grooves are provided at the bottom of the second grinding block (59) and the top of the fixing ring (591), and elastic rods (592) are installed in the mounting grooves for pushing the second grinding block (59) upwards to approach the first grinding block (58) so as to grind the grains; The grinding block 2 (59) and the grinding block 1 (58) are spaced apart and arranged at an inclined position with a larger top and a smaller bottom, so as to be used for grinding and discharging materials.

5. The agricultural product grain processing and grading grinding equipment according to claim 4 is characterized in that: The pulverizing mechanism (6) comprises: A plurality of impact rings (61) are axially and evenly spaced and fixedly connected to the inner wall of the grinding cylinder (1) to increase the impact angle with the grains; A ventilation net (62) is arranged inside the grinding cylinder (1), and a reinforcing rod is arranged in the middle of the ventilation net (62), and an annular groove is formed on the outer wall of the reinforcing rod. The grinding block (58) is equipped with a plurality of guide beads, and the guide beads roll in the annular groove. A plurality of lower connecting rods (63) are respectively fixedly connected between the rotating shaft (7) and the ventilation net (62) and are used to drive the ventilation net (62) to rotate.

6. The agricultural product grain processing and grading grinding equipment according to claim 5 is characterized by: The inner wall of the grinding cylinder (1) is fixedly connected with a material discharge bevel ring (64), and the inner wall of the grinding cylinder (1) is in contact with the outer wall of the ventilation net (62); The ventilation net (62) is cylindrical and is provided with a plurality of vertical fixing rods, and screens are installed between the fixing rods.

7. The agricultural product grain processing and grading grinding equipment according to claim 6 is characterized by: The inner wall of the grinding cylinder (1) is fixedly connected with a ventilation inclined plate (8), and the lower part of the ventilation inclined plate (8) is located on one side of the discharge cylinder (3) for discharging the ground grains; The blades (9) are mounted on the outer wall of the rotating shaft (7) and are located above the ventilation inclined plate (8) to generate negative pressure during rotation.

8. The agricultural product grain processing and grading grinding equipment according to claim 7 is characterized by: A motor is installed at the bottom of the grinding cylinder (1), and the output end of the motor is connected to the rotating shaft (7) for driving the rotating shaft (7) to rotate.

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