A pulverizer for bran

Abstract

The utility model discloses a kind of for bran grinder, including grinder body and the smashing chamber opened in the inside of grinder body, the grinder body top and bottom are respectively opened with the feed inlet and the discharge port of the communication of smashing chamber, double smashing mechanism is arranged on the inner wall of the smashing chamber.This utility model, under the interaction of grinder body, smashing chamber, feed inlet, discharge port and double smashing mechanism, by setting double smashing mechanism, utilize motor drive shaft, through gear and chain transmission drive upper and lower grinding cone disc synchronous rotation, make bran experience twice grinding in smashing chamber, compared with traditional single smashing structure, significantly improve the efficiency and fineness of crushing, the cooperation of annular groove and rotating ring block makes grinding cone disc rotation stable, grinding strip on smashing chamber and grinding cone disc enhances grinding effect, the transmission structure in fixed frame is compact, simplify power transmission path, reduce equipment energy consumption, provide efficient, stable solution for bran crushing.

Description

Technical Field

[0001] This utility model relates to the field of grain processing technology, and in particular to a pulverizer for wheat bran. Background Technology

[0002] In the grain processing industry, bran grinding is a crucial step in feed production and food processing. As the core equipment for achieving fine bran particle size reduction, the performance of the grinder directly affects the quality of subsequent processing. Traditional bran grinders typically have a single grinding structure within the grinding chamber, using a motor to drive a grinding disc or blades to rotate, causing the material to collide and be compressed with the grinding components to achieve grinding.

[0003] Currently, existing pulverizers have room for improvement in terms of the driving method and pulverizing effect of the pulverizing mechanism. On the one hand, the single pulverizing structure results in a short residence time of bran in the pulverizing chamber, and the discharge of coarse and fine particles is mixed, which is difficult to meet the requirements of fine processing. On the other hand, traditional equipment mostly uses a single power source to drive a single grinding component, or connects multiple pulverizing units through a complex transmission structure, which has the defects of low power transmission efficiency and high equipment maintenance costs. Therefore, we propose a pulverizer for bran to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings in the above-mentioned background technology and to propose a bran pulverizer.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A pulverizer for bran includes a pulverizer body and a pulverizing chamber opened inside the pulverizer body. The top and bottom of the pulverizer body are respectively provided with a feed inlet and a discharge outlet communicating with the pulverizing chamber. A double pulverizing mechanism is provided on the inner side wall of the pulverizing chamber.

[0007] The dual grinding mechanism includes an annular groove formed on the inner wall of the grinding chamber. Two rotating ring blocks are rotatably connected to the inner wall of the annular groove. Multiple connecting rods are fixedly installed on the inner wall of the rotating ring blocks. The upper connecting rods are fixedly installed with the same upper grinding cone, and the lower connecting rods are fixedly installed with the same lower grinding cone. Multiple grinding strips are fixedly installed on the inner wall of the grinding chamber and on the outer walls of the upper and lower grinding cones. A fixing frame is fixedly installed on the outer wall of the grinding machine body, and a rotating shaft is rotatably connected to the bottom of the fixing frame. The first drive shaft is rotatably connected to the top of the fixed frame, and a motor is fixedly installed at the bottom of the fixed frame. The output shaft of the motor is fixedly connected to the end of the rotating shaft. Gear rings are fixedly sleeved on the outer walls of the upper and lower grinding cones. First gears are fixedly sleeved on the outer walls of the first and second drive shafts. The first gears on the same side are meshed with the gear rings. A second gear is fixedly sleeved on the outer wall of the rotating shaft. The first gear and the second gear located below are meshed with each other. The rotating shaft and the second drive shaft are connected by a chain drive.

[0008] Preferably, the vertical distance between the outer wall of the upper grinding cone and the inner wall of the grinding chamber gradually decreases from top to bottom, and the vertical distance between the outer wall of the lower grinding cone and the inner wall of the grinding chamber gradually decreases from top to bottom.

[0009] Preferably, a chain disc adapted to the chain is fitted on the outer wall of both the rotating shaft and the second transmission shaft.

[0010] Preferably, the feed inlet, the discharge outlet, the upper grinding cone, and the lower grinding cone are arranged coaxially.

[0011] Preferably, multiple connecting rods in the same layer are arranged in a ring array on the inner sidewall of the rotating ring block.

[0012] Preferably, the outer wall of the crusher body has two through-holes communicating with the annular groove, and the first gear passes through the through-holes and meshes with the gear ring.

[0013] Preferably, a feed funnel communicating with the feed inlet is fixedly installed on the top of the crusher body, and a discharge funnel communicating with the discharge outlet is fixedly installed on the bottom of the crusher body.

[0014] The beneficial effects of this utility model are as follows:

[0015] Through the interaction of the crusher body, crushing chamber, feed inlet, discharge outlet, and dual crushing mechanism, the upper and lower grinding cones rotate synchronously via a motor-driven shaft, gear and chain transmission, allowing the bran to undergo two grinding processes within the crushing chamber. Compared to traditional single crushing structures, this significantly improves crushing efficiency and fineness. The cooperation between the annular groove and the rotating ring block ensures stable rotation of the grinding cones, while the grinding strips on the crushing chamber and grinding cones enhance the grinding effect. The compact transmission structure within the fixed frame simplifies the power transmission path and reduces equipment energy consumption, providing an efficient and stable solution for bran crushing. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a bran pulverizer proposed in this utility model;

[0017] Figure 2 for Figure 1 Enlarged view of the structure at point A in the middle;

[0018] Figure 3 This is a top view of the upper grinding cone in a bran grinder according to the present invention;

[0019] Figure 4 This is a top sectional view of the annular groove in a bran crusher proposed in this utility model.

[0020] In the diagram: 1. Crusher body; 2. Crushing chamber; 3. Feed inlet; 4. Discharge outlet; 5. Annular groove; 6. Rotating ring block; 7. Connecting rod; 8. Upper grinding cone; 9. Lower grinding cone; 10. Grinding strip; 11. Fixing frame; 12. Rotating shaft; 13. First drive shaft; 14. Second drive shaft; 15. Motor; 16. Gear ring; 17. First gear; 18. Second gear; 19. Chain; 20. Feed funnel; 21. Discharge funnel. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figure 1-4A wheat bran pulverizer includes a pulverizer body 1 and a pulverizing chamber 2 inside the pulverizer body 1. The pulverizer body 1 has an inlet 3 and an outlet 4 communicating with the pulverizing chamber 2 at its top and bottom, respectively. A dual pulverizing mechanism is provided on the inner wall of the pulverizing chamber 2. The dual pulverizing mechanism includes an annular groove 5 on the inner wall of the pulverizing chamber 2. Two rotating ring blocks 6 are rotatably connected to the inner wall of the annular groove 5. Multiple connecting rods 7 are fixedly installed on the inner wall of the rotating ring blocks 6. The upper connecting rods 7 are fixedly installed with the same upper grinding cone 8, and the lower connecting rods 7 are fixedly installed with the same lower grinding cone 9. Multiple grinding strips 10 are fixedly installed on the inner wall of the pulverizing chamber 2 and on the outer walls of the upper and lower grinding cones 8 and 9, respectively. A fixed frame 11 is fixedly installed on the outer wall of the machine body 1. A rotating shaft 12 and a first transmission shaft 13 are rotatably connected to the bottom of the fixed frame 11. A second transmission shaft 14 is rotatably connected to the top of the fixed frame 11. A motor 15 is fixedly installed at the bottom of the fixed frame 11. The output shaft of the motor 15 is fixedly connected to the end of the rotating shaft 12. Gear rings 16 are fixedly sleeved on the outer walls of the upper grinding cone 8 and the lower grinding cone 9. A first gear 17 is fixedly sleeved on the outer walls of the first transmission shaft 13 and the second transmission shaft 14. The first gear 17 and the gear ring 16 on the same side are meshed. A second gear 18 is fixedly sleeved on the outer wall of the rotating shaft 12. The first gear 17 and the second gear 18 located below are meshed. The rotating shaft 12 and the second transmission shaft 14 are connected by a chain 19.

[0023] To further explain, by setting up a dual crushing mechanism, the motor 15 drives the rotating shaft 12, and then drives the upper grinding cone 8 and the lower grinding cone 9 to rotate through gear transmission and chain 19 transmission. The grinding cone and the grinding strips 10 on the inner side wall of the crushing chamber 2 cooperate with each other to crush the bran entering the crushing chamber 2 twice, which effectively improves the crushing effect and crushing efficiency of the bran, realizes the dual crushing function of one machine, and reduces equipment cost and floor space.

[0024] like Figure 1 As shown, the vertical distance between the outer wall of the upper grinding cone 8 and the inner wall of the grinding chamber 2 gradually decreases from top to bottom, and the vertical distance between the outer wall of the lower grinding cone 9 and the inner wall of the grinding chamber 2 gradually decreases from top to bottom.

[0025] To further explain, this structure allows the bran to be subjected to stronger compression and grinding as it falls during the grinding process, which can further refine the degree of grinding, improve the grinding quality, and ensure that the particle size of the ground bran is more uniform.

[0026] like Figure 2 As shown, chain discs adapted to the chain 19 are fitted on the outer walls of both the rotating shaft 12 and the second transmission shaft 14.

[0027] To further explain, the chain disc provides stable support and transmission structure for the chain 19, ensuring that the chain 19 will not slip during transmission, thus guaranteeing the stability and reliability of power transmission, and in turn ensuring the stable rotation of the upper grinding cone 8 and the lower grinding cone 9, maintaining the normal operation of the crushing work.

[0028] like Figure 1 As shown, the feed inlet 3, the discharge outlet 4, the upper grinding cone 8, and the lower grinding cone 9 are arranged coaxially.

[0029] To further explain, this allows the bran to fall vertically under gravity, smoothly enter the grinding chamber 2, pass through the grinding areas of the upper grinding cone 8 and the lower grinding cone 9, and finally be discharged from the discharge port 4. This avoids the accumulation and blockage of bran in the grinding chamber 2, improves the flowability of materials, and ensures the continuity and efficiency of the grinding process.

[0030] like Figure 3 As shown, multiple connecting rods 7 on the same layer are arranged in a ring array on the inner sidewall of the rotating ring block 6.

[0031] To further explain, this distribution method allows the upper grinding cone 8 and the lower grinding cone 9 to be evenly connected to the rotating ring block 6. During rotation, the grinding cones are subjected to more uniform force, reducing vibration and wear caused by uneven force, extending the service life of the equipment, and ensuring the stability of the pulverizing effect.

[0032] like Figure 4 As shown, two through-holes communicating with the annular groove 5 are provided on the outer wall of the crusher body 1. The first gear 17 passes through the through-holes and meshes with the gear ring 16.

[0033] To further explain, this design facilitates the transmission of power from the outside to the grinding disc, making the transmission structure of the equipment more compact and reasonable. At the same time, the through-hole also facilitates the installation, debugging and maintenance of the equipment.

[0034] like Figure 1 As shown, a feed hopper 20 connected to the feed inlet 3 is fixedly installed on the top of the crusher body 1, and a discharge hopper 21 connected to the discharge outlet 4 is fixedly installed on the bottom of the crusher body 1.

[0035] To further explain, the feed funnel 20 allows operators to easily pour bran into the feed inlet 3, improving the convenience of feeding. The discharge funnel 21 facilitates the collection of crushed bran, preventing it from scattering everywhere, improving the working environment, and also increasing the efficiency of material collection.

[0036] The functional principle of this utility model can be explained through the following operation methods:

[0037] Start the device

[0038] When the motor 15 located at the bottom of the fixed frame 11 is turned on, the output shaft of the motor 15 drives the rotating shaft 12 to rotate. Since the second gear 18 is fixedly sleeved on the outer wall of the rotating shaft 12, the second gear 18 meshes with the first gear 17 on the first transmission shaft 13 located below, thus driving the first transmission shaft 13 to rotate. At the same time, the rotating shaft 12 is connected to the second transmission shaft 14 through the chain 19, thereby driving the second transmission shaft 14 to rotate. The first gear 17 on the outer wall of the first transmission shaft 13 and the second transmission shaft 14 meshes with the gear rings 16 on the outer wall of the upper grinding cone disk 8 and the lower grinding cone disk 9, respectively, so that the upper grinding cone disk 8 and the lower grinding cone disk 9 begin to rotate in the annular groove 5 under the drive of the rotating ring block 6, and the equipment enters the operating state.

[0039] Material delivery

[0040] The bran to be crushed is poured into the feed funnel 20 at the top of the crusher body 1. The feed funnel 20 is connected to the feed inlet 3, and the bran will smoothly enter the crushing chamber 2. Because the feed inlet 3, the upper grinding cone 8 and the lower grinding cone 9 are coaxially arranged, the bran falls vertically to the upper grinding cone 8 under the action of gravity.

[0041] Crushing process

[0042] Initial grinding: The falling bran enters the area between the outer wall of the upper grinding cone 8 and the inner wall of the grinding chamber 2. Since multiple grinding strips 10 are fixedly installed on both the upper grinding cone 8 and the inner wall of the grinding chamber 2, and the vertical distance between the outer wall of the upper grinding cone 8 and the inner wall of the grinding chamber 2 gradually decreases from top to bottom, the rotating upper grinding cone 8 and the grinding strips 10 on the inner wall of the grinding chamber 2 cooperate with each other to perform initial compression and grinding of the bran.

[0043] Secondary grinding: The bran that has been ground in the first stage continues to fall to the lower grinding cone 9. The lower grinding cone 9 is also rotating. The grinding strips 10 on the outer wall of the lower grinding cone 9 and the inner wall of the grinding chamber 2 squeeze and grind the bran again, completing the secondary grinding and further refining the bran particles.

[0044] Collect finished products

[0045] The crushed bran is discharged from the discharge port 4 at the bottom of the crusher body 1. The discharge port 4 is connected to the discharge funnel 21. The crushed bran will fall into the discharge funnel 21. The user can place a collection container under the discharge funnel 21 to collect the crushed bran.

[0046] Turn off the device

[0047] Once all the bran to be ground has been processed, turn off motor 15 to stop the equipment. Afterwards, the equipment can be cleaned and maintained as needed, such as checking the wear of the grinding stones 10, to prepare for the next use.

[0048] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A pulverizer for wheat bran, comprising a pulverizer body (1) and a pulverizing chamber (2) formed inside the pulverizer body (1), wherein the pulverizer body (1) has an inlet (3) and an outlet (4) communicating with the pulverizing chamber (2) at its top and bottom, respectively, characterized in that, The inner wall of the crushing chamber (2) is provided with a double crushing mechanism; The dual crushing mechanism includes an annular groove (5) formed on the inner wall of the crushing chamber (2). Two rotating ring blocks (6) are rotatably connected to the inner wall of the annular groove (5). Multiple connecting rods (7) are fixedly installed on the inner wall of the rotating ring blocks (6). The upper connecting rods (7) are fixedly installed with the same upper grinding cone disc (8), and the lower connecting rods (7) are fixedly installed with the same lower grinding cone disc (9). Multiple grinding strips (10) are fixedly installed on the inner wall of the crushing chamber (2) and on the outer walls of the upper grinding cone disc (8) and the lower grinding cone disc (9). A fixed frame (11) is fixedly installed on the outer wall of the crusher body (1). A rotating shaft (12) and a first transmission shaft (13) are rotatably connected to the bottom of the fixed frame (11). A second drive shaft (14) is rotatably connected to the top of the fixed frame (11). A motor (15) is fixedly installed at the bottom of the fixed frame (11). The output shaft of the motor (15) is fixedly connected to the end of the rotating shaft (12). A gear ring (16) is fixedly sleeved on the outer wall of the upper grinding cone (8) and the lower grinding cone (9). A first gear (17) is fixedly sleeved on the outer wall of the first drive shaft (13) and the second drive shaft (14). The first gear (17) and the gear ring (16) on the same side are meshed. A second gear (18) is fixedly sleeved on the outer wall of the rotating shaft (12). The first gear (17) and the second gear (18) located below are meshed. The rotating shaft (12) and the second drive shaft (14) are connected by a chain (19).

2. A wheat bran pulverizer according to claim 1, characterized in that, The vertical distance between the outer wall of the upper grinding cone (8) and the inner wall of the grinding chamber (2) gradually decreases from top to bottom, and the vertical distance between the outer wall of the lower grinding cone (9) and the inner wall of the grinding chamber (2) gradually decreases from top to bottom.

3. A wheat bran pulverizer according to claim 1, characterized in that, Both the rotating shaft (12) and the second transmission shaft (14) are fitted with chain discs that are compatible with the chain (19) on their outer side walls.

4. A wheat bran pulverizer according to claim 1, characterized in that, The feed inlet (3), the discharge outlet (4), the upper grinding cone (8), and the lower grinding cone (9) are arranged coaxially.

5. A wheat bran pulverizer according to claim 1, characterized in that, Multiple connecting rods (7) on the same layer are arranged in a ring array on the inner sidewall of the rotating ring block (6).

6. A wheat bran pulverizer according to claim 1, characterized in that, The outer wall of the crusher body (1) has two through holes that communicate with the annular groove (5), and the first gear (17) passes through the through holes and meshes with the gear ring (16).

7. A wheat bran pulverizer according to claim 1, characterized in that, The top of the crusher body (1) is fixedly installed with a feed hopper (20) communicating with the feed inlet (3), and the bottom of the crusher body (1) is fixedly installed with a discharge hopper (21) communicating with the discharge outlet (4).

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