High-efficiency rice bran crushing device

Abstract

The utility model discloses a kind of efficient rice bran grinding devices, belong to rice bran grinding technical field, it includes: machine body, the machine body one side is fixedly connected with motor, the motor output end penetrates machine body side wall, the motor output end is coaxially fixedly connected with hammer blade rotor, the hammer blade rotor is rotatably connected in machine body, the machine body is slidably connected with screen, the screen is located just below hammer blade rotor, the position of the machine body corresponding screen discharge end is provided with blanking opening with drop port. In the utility model, by tilting setting vibrating screen, the power of hammer blade rotor is driven using motor to realize material screening simultaneously, cooperate with material returning assembly, send non-standard material to spiral material guiding chamber, automatically return to feeding port for circulating grinding by spiral material guiding rod. The structure guarantees the grinding fineness, and the closed-loop design of vibrating screening-automatic material returning significantly improves the grinding efficiency of rice bran and product uniformity.

Description

Technical Field

[0001] This utility model belongs to the field of rice bran crushing technology, specifically a high-efficiency rice bran crushing device. Background Technology

[0002] Rice bran, a major byproduct of rice processing, is rich in dietary fiber and nutrients. However, traditional grinding equipment suffers from problems such as low grinding efficiency, uneven particle size, and easy clogging. Existing technologies mostly employ fixed screens or simple vibrating screen structures, making it difficult to achieve efficient grading and continuous production.

[0003] According to the search, the patent document with publication number CN206500228U discloses a rice bran and husk crushing device, which includes a feeding device, a fine powder device, a crushing box, a vibrating filter screen, a powder return device, and a fixing frame. The feeding device is fixed to the upper left side of the crushing box by the bottom fixing frame.

[0004] The aforementioned comparative documents also have the following shortcomings:

[0005] The material return device of this utility model uses a suction fan in conjunction with multiple sections of pipe, including a suction pipe, a connecting bend, a conveying pipe, and a return pipe, to achieve material circulation. The structure is relatively complex, which not only increases the manufacturing cost of the equipment but also increases the difficulty of later maintenance. In addition, the position of the suction hood is fixed and cannot be flexibly adjusted, which may result in some coarse particles not being fully sucked in, affecting the crushing efficiency and the uniformity of the finished product. On the other hand, the fine powder device and the feeding device of this utility model are driven by independent fine powder motors and conveying motors, respectively. Although the control logic is simple, it increases the overall energy consumption and is not conducive to energy saving and consumption reduction. Utility Model Content

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency rice bran grinding device, comprising...

[0007] The machine body has a No. 1 motor fixedly connected to one side. The output end of the No. 1 motor passes through the side wall of the machine body. A hammer rotor is coaxially fixedly connected to the output end of the No. 1 motor. The hammer rotor is rotatably connected to the machine body. A screen is slidably connected to the machine body. The screen is located directly below the hammer rotor. A discharge port is opened on the machine body at the position corresponding to the discharge end of the screen. The discharge port is equipped with a return material component.

[0008] The material return assembly includes a spiral guide chamber connected to the discharge port. A feeding port is provided at the upper position of the spiral guide chamber. A spiral guide rod is rotatably connected inside the spiral guide chamber. A second motor is fixedly connected to the top of the spiral guide chamber. The spiral guide rod is coaxially fixedly connected to the output end of the second motor.

[0009] As a further embodiment of this utility model: a vibration mechanism is provided, wherein the vibration mechanism is located on the side of the screen away from the material discharge port. The vibration mechanism includes a slider fixedly connected to one side of the screen, the slider penetrating the side wall of the machine body, a slide rail fixedly connected to the outside of the machine body at a position corresponding to the slider, the slider being slidably connected to the slide rail, a toothed rectangular ring fixedly connected to the side of the slider away from the screen, a first gear rotatably connected to the side of the machine body base near the slide rail, and an intermittent gear coaxially fixedly connected to the first gear near the slider, the intermittent gear meshing with the toothed rectangular ring.

[0010] As a further embodiment of this utility model: a second gear is rotatably connected to the side of the machine body base near the slide rail, and the first gear meshes with the second gear.

[0011] As a further embodiment of this utility model: the output end of the No. 1 motor is coaxially and fixedly connected to the No. 3 gear, which meshes with the No. 2 gear.

[0012] As a further embodiment of this utility model: the feeding port is connected to the machine body.

[0013] As a further embodiment of this utility model, a discharge port is provided at the bottom of the machine body.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] In this invention, a vibrating screen is tilted, and the power of the motor-driven hammer rotor simultaneously achieves material screening. Combined with a return assembly, substandard materials are sent to a spiral guide chamber and automatically returned to the feed inlet for cyclic crushing via the spiral guide rod. This structure, while ensuring fine crushing, significantly improves the crushing efficiency and product uniformity of rice bran through a closed-loop design of vibrating screening and automatic return. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a high-efficiency rice bran grinding device described in an embodiment of this utility model.

[0017] Figure 2 This is a three-dimensional structural diagram of the body of a high-efficiency rice bran grinding device described in an embodiment of this utility model.

[0018] Figure 3 This is a three-dimensional sectional view of the body of a high-efficiency rice bran crushing device described in an embodiment of this utility model.

[0019] Figure 4 This is a three-dimensional cross-sectional schematic diagram of the return component of a high-efficiency rice bran crushing device described in an embodiment of this utility model.

[0020] Figure 5This is a three-dimensional structural diagram of the vibration mechanism of a high-efficiency rice bran crushing device described in an embodiment of this utility model.

[0021] Figure 6 This is a three-dimensional cross-sectional schematic diagram of the vibration mechanism of a high-efficiency rice bran crushing device described in an embodiment of this utility model.

[0022] Figure 7 This is a three-dimensional cross-sectional schematic diagram of the reciprocating mechanism in the vibration mechanism of a high-efficiency rice bran crushing device described in this embodiment of the present invention.

[0023] In the above attached diagram: 1. Machine body, 2. Motor No. 1, 3. Hammer rotor, 4. Screen, 5. Discharge port, 6. Spiral guide chamber, 7. Feed port, 8. Spiral guide rod, 9. Motor No. 2, 10. Slider, 11. Slide rail, 12. Pair of toothed rectangular gear rings, 13. Gear No. 1, 14. Intermittent gear, 15. Gear No. 2, 16. Gear No. 3, 17. Discharge port. Detailed Implementation

[0024] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0025] like Figures 1-7 As shown, this utility model provides a technical solution:

[0026] A high-efficiency rice bran grinding device, comprising:

[0027] The machine body 1 has a No. 1 motor 2 fixedly connected to one side. The output end of the No. 1 motor 2 passes through the side wall of the machine body 1. The output end of the No. 1 motor 2 is coaxially fixedly connected to a hammer rotor 3. The hammer rotor 3 is rotatably connected inside the machine body 1. A screen 4 is slidably connected inside the machine body 1. The screen 4 is located directly below the hammer rotor 3. A discharge port 17 is opened at the bottom of the machine body 1. A drop port 5 is opened at the position of the discharge end of the screen 4. A return material component is provided at the drop port 5.

[0028] The return assembly includes a spiral guide chamber 6 connected to the discharge port 5. A feeding port 7 is provided at the upper position of the spiral guide chamber 6. The feeding port 7 is connected to the machine body 1. A spiral guide rod 8 is rotatably connected inside the spiral guide chamber 6. A second motor 9 is fixedly connected to the top of the spiral guide chamber 6. The spiral guide rod 8 is coaxially fixedly connected to the output end of the second motor 9.

[0029] A vibration mechanism is located on the side of the screen 4 away from the material discharge port 5. The vibration mechanism includes a slider 10 fixedly connected to one side of the screen 4, the slider 10 passing through the side wall of the machine body 1, a slide rail 11 fixedly connected to the outside of the machine body 1 at the position corresponding to the slider 10, the slider 10 slidingly connected to the slide rail 11, a toothed rectangular ring 12 fixedly connected to the side of the slider 10 away from the screen 4, a first gear 13 rotatably connected to the side of the machine body 1 base near the slide rail 11, an intermittent gear 14 coaxially fixedly connected to the side of the first gear 13 near the slider 10, the intermittent gear 14 meshing with the toothed rectangular ring 12, a second gear 15 rotatably connected to the side of the machine body 1 base near the slide rail 11, the first gear 13 meshing with the second gear 15, and a third gear 16 coaxially fixedly connected to the output end of the first motor 2, the third gear 16 meshing with the second gear 15.

[0030] The working principle of this utility model is as follows:

[0031] Crushing: Start motor 2 to drive hammer rotor 3 to rotate at high speed to crush rice bran or husks entering from the feed inlet. The crushed material falls onto screen 4 under gravity. Powder that meets the fineness requirements falls through screen 4 into the discharge port 17 at the bottom of the machine body 1 and is discharged, completing the collection of finished products.

[0032] Screening: The power of motor 2 is transmitted to gear 2 through gear 3 16, which in turn drives gear 13 to rotate intermittent gear 14. Intermittent gear 14 meshes with the toothed rectangular ring 12, which drives slider 10 to reciprocate along slide rail 11, causing screen 4 to vibrate regularly and improve screening efficiency.

[0033] Return material: Coarse particles that do not meet the fineness requirements slide along the screen 4 to the discharge port 5 and enter the spiral guide chamber 6 of the return material assembly. Start the second motor 9 to drive the spiral guide rod 8 to rotate, conveying the coarse particles upward and feeding them back into the machine body 1 through the feed port 7 for secondary crushing;

[0034] The above-mentioned crushing, screening, and recycling processes are repeated until all materials reach the required fineness and are discharged from the outlet 17, thus completing the entire crushing process.

[0035] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A high-efficiency rice bran grinding device, characterized in that, include: The machine body (1) has a No. 1 motor (2) fixedly connected to one side of the machine body (1). The output end of the No. 1 motor (2) passes through the side wall of the machine body (1). The output end of the No. 1 motor (2) is coaxially fixedly connected to a hammer rotor (3). The hammer rotor (3) is rotatably connected inside the machine body (1). A screen (4) is slidably connected inside the machine body (1). The screen (4) is located directly below the hammer rotor (3). A discharge port (5) is opened on the machine body (1) corresponding to the discharge end of the screen (4). A return material assembly is provided inside the discharge port (5). The return assembly includes a spiral guide chamber (6) connected to the discharge port (5), a feeding port (7) is provided on one side of the spiral guide chamber (6), a spiral guide rod (8) is rotatably connected inside the spiral guide chamber (6), a second motor (9) is fixedly connected to the top of the spiral guide chamber (6), and the spiral guide rod (8) is coaxially fixedly connected to the output end of the second motor (9). A vibration mechanism is provided on the side of the screen (4) away from the discharge port (5).

2. The high-efficiency rice bran grinding device according to claim 1, characterized in that: The vibration mechanism includes a slider (10) fixedly connected to one side of the screen (4). The slider (10) passes through the side wall of the machine body (1). A slide rail (11) is fixedly connected to the outside of the machine body (1) at the position corresponding to the slider (10). The slider (10) is slidably connected to the slide rail (11). A toothed rectangular ring (12) is fixedly connected to the side of the slider (10) away from the screen (4). A first gear (13) is rotatably connected to the side of the machine base (1) near the slide rail (11). An intermittent gear (14) is coaxially fixedly connected to the side of the first gear (13) near the slider (10). The intermittent gear (14) meshes with the toothed rectangular ring (12).

3. The high-efficiency rice bran grinding device according to claim 2, characterized in that: The machine body (1) has a second gear (15) rotatably connected to the side of the base near the slide rail (11), and the first gear (13) meshes with the second gear (15).

4. The high-efficiency rice bran grinding device according to claim 3, characterized in that: The output end of the No. 1 motor (2) is coaxially fixedly connected to the No. 3 gear (16), which meshes with the No. 2 gear (15).

5. The high-efficiency rice bran grinding device according to claim 4, characterized in that: The feeding port (7) is connected to the machine body (1).

6. The high-efficiency rice bran grinding device according to claim 5, characterized in that: The bottom of the machine body (1) is provided with a discharge port (17).

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