Low-noise polished round-grained rice milling device
By filling the sound insulation cotton between the rice milling bin and the motor bin, and installing the L-shaped noise reduction ventilation duct and internal sound insulation sound absorption plate on the side of the motor bin, the problem of excessive noise from the rice mill is solved, effectively suppressing the noise of the factory building and protecting the operator's hearing health.
Patent Information
- Application Number
- CN202421380025.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-18
- Publication Date
- 2025-04-15
- Estimated Expiration
- 2034-06-18
AI Technical Summary
The noise generated by the rice mill during operation causes excessive noise in the production workshop, affecting the hearing health of the operators.
A low-noise japonica rice rice milling device is designed. By filling the sound insulation cotton between the rice milling bin and the motor bin, it isolates and reduces noise, and sets an L-shaped noise reduction ventilation duct on the side of the motor bin, combining the inner sound insulation sound absorption plate and the tortuous path generation plate to reduce the direct propagation of noise.
It effectively suppresses the noise generated during the operation of the rice mill, reduces the noise in the factory, and thus reduces the damage caused to the operator's hearing.
Smart Images
Figure CN222753326U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of rice milling devices, and in particular relates to a low-noise polished rice milling device. Background Art
[0002] Rice milling is the process of processing paddy rice into rice that can be cooked directly. Currently, rice milling machines are mostly used to grind brown rice covered with bran into japonica rice with only rice grains separated from the bran. However, during the operation of the rice milling machine, its running motor and fan will generate a lot of noise. During the rice milling process, the friction sound between the rice and the rice milling roller and the rice milling bin, and the impact sound generated by the vibration of the machine operation will cause excessive environmental noise in the production workshop, resulting in noise pollution and affecting the hearing health of the operators. Utility Model Content
[0003] In view of the above problems, the purpose of the utility model is to provide a low-noise japonica rice milling device, which greatly suppresses the noise generated during the operation of the rice milling machine, thereby reducing the factory noise and further reducing the damage caused by the noise to the operator's hearing.
[0004] To achieve the above objectives, the utility model provides the following technical solutions: a low-noise polished rice milling device, comprising a bottom plate, a spring damper is rotatably installed on the top of the bottom plate, the top of the spring damper is rotatably connected to the mounting plate, the top of the mounting plate is connected to a support frame, the top of the support frame is connected to a soundproof cover of a rice milling bin, a rice milling bin is installed on the inner side of the soundproof cover of the rice milling bin, a feed hopper is connected to the top of the rice milling bin, one end of the rice milling bin is connected to a discharge pipe, a rice milling roller is rotatably installed on the inner side of the rice milling bin, and one end of the rice milling roller passes through the discharge pipe. The rice bin soundproof cover is connected to the first pulley, the top of the mounting plate is provided with a motor bin soundproof cover, the interior of the motor bin soundproof cover is provided with a motor bin, a motor is installed inside the motor bin, one end of the motor bin is hinged to the inspection door, an L-shaped noise reduction ventilation duct runs through and is connected to the inspection door, the output end of the motor is connected to the second pulley through a rotating shaft, a silent fan is installed on the top of the mounting plate, one end of the discharge pipe is connected to the air selection bin, and sound insulation cotton is filled between the rice milling bin soundproof cover and the rice milling bin, and between the motor bin soundproof cover and the motor bin.
[0005] The beneficial effects of the utility model are as follows: in the rice milling process, the noise generated by rice milling inside the rice milling bin and the noise generated by the operation of the motor inside the motor bin are isolated and reduced by the sound insulation cotton, thereby reducing the influence of the noise on the outside world, and an L-shaped noise reduction ventilation duct is arranged on the inspection door hinged on the side of the motor bin. Without affecting the heat dissipation of the motor, the L-shaped noise reduction ventilation duct is in an L-shaped shape, so that the airflow entering the L-shaped noise reduction ventilation duct can change direction, thereby reducing the direct propagation of noise, and an inner sound insulation and sound absorption board and a tortuous path generating board are arranged inside the L-shaped noise reduction ventilation duct. The inner sound insulation and sound absorption board can effectively absorb and reflect noise, and the arrangement of the tortuous path generating board makes the internal path of the L-shaped noise reduction ventilation duct tortuous, so that The airflow needs to change direction many times, thereby increasing the reflection and scattering of noise on the wall and reducing the intensity of the noise. The L-shaped noise reduction ventilation duct, internal sound insulation and sound absorption panels, and tortuous path generating panels are set up to achieve a good noise reduction effect. The device is also provided with a spring damper, so that the vibration generated during the operation of the device can be effectively buffered by the spring damper, reducing the vibration force transmitted to the ground and buffering the impact force received by the various components of the device, thereby reducing the noise generated by the vibration. In summary, the device greatly suppresses the noise generated during the operation of the rice mill, thereby reducing the noise in the factory building and reducing the damage to the hearing of the operator caused by the noise.
[0006] To separate the bran from the rice kernels:
[0007] As a further improvement of the above technical solution: one side plate of the air selection bin penetrates through and is connected to the silent blower through a hose.
[0008] The beneficial effect of this improvement is that air is supplied to the air separation bin through a hose by a silent blower, and the rice grains entering the air separation bin are air-separated, so that the bran detached from the rice grains is separated.
[0009] In order to make the L-shaped noise reduction ventilation duct have a noise reduction effect:
[0010] As a further improvement of the above technical solution: a tortuous path generating plate is provided inside the L-shaped noise reduction ventilation duct, and inner sound insulation and sound absorption panels are adhered to the inner surface of the L-shaped noise reduction ventilation duct and the outer surface of the tortuous path generating plate.
[0011] The beneficial effects of the present improvement are as follows: the L-shaped noise reduction ventilation duct is L-shaped, so that the airflow entering the L-shaped noise reduction ventilation duct can change direction and reduce the direct propagation of noise. An inner sound insulation and sound absorbing panel and a tortuous path generating panel are arranged inside the L-shaped noise reduction ventilation duct. The inner sound insulation and sound absorbing panel can effectively absorb and reflect noise, and the arrangement of the tortuous path generating panel makes the inner path of the L-shaped noise reduction ventilation duct tortuous, so that the airflow needs to change direction multiple times, thereby increasing the reflection and scattering of noise on the wall surface and reducing the intensity of noise. Through the arrangement of the L-shaped noise reduction ventilation duct, the inner sound insulation and sound absorbing panel and the tortuous path generating panel, a good noise reduction effect is achieved.
[0012] To separate the rice and bran:
[0013] As a further improvement of the above technical solution: a bran discharge pipe and a polished rice discharge pipe are provided at the bottom of the air separation bin.
[0014] The beneficial effect of this improvement is that the bottom ends of the polished rice discharge pipe and the discharge pipe are aligned vertically, the polished rice falls directly from the discharge pipe into the polished rice discharge pipe, and the bran separated from the polished rice after air selection is discharged from the bran discharge pipe.
[0015] To drive the first pulley:
[0016] As a further improvement of the above technical solution: the second pulley and the first pulley are connected by a belt.
[0017] The beneficial effect of this improvement is that the second pulley drives the first pulley to rotate via the belt.
[0018] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 This is a schematic diagram of the left front axonometric structure of the utility model;
[0020] Figure 2 It is a front cross-sectional schematic diagram of the utility model;
[0021] Figure 3 It is a partially cutaway axonometric schematic diagram of the utility model;
[0022] Figure 4 It is a cross-sectional structural schematic diagram of the L-shaped noise reduction ventilation pipe in the utility model;
[0023] Figure 5 This is a schematic diagram of the axonometric structure of the motor compartment soundproof cover in the utility model;
[0024] Figure 6 It is a side structural schematic diagram of the bottom plate, spring damper and mounting plate in the utility model;
[0025] Figure 7 It is an axonometric diagram of the bottom plate, spring damper and mounting plate in the utility model;
[0026] In the figure: 1. bottom plate; 2. spring damper; 3. mounting plate; 4. support frame; 5. sound insulation cover of rice milling bin; 6. rice milling bin; 7. feed hopper; 8. discharge pipe; 9. rice milling roller; 10. first pulley; 11. sound insulation cover of motor bin; 12. motor bin; 13. motor; 14. L-shaped noise reduction ventilation duct; 15. inner sound insulation and sound absorption board; 16. tortuous path generating plate; 17. second pulley; 18. belt; 19. silent fan; 20. air selection bin; 21. bran discharge pipe; 22. polished rice discharge pipe; 23. sound insulation cotton; 24. inspection door. DETAILED DESCRIPTION
[0027] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the protection scope of the present invention.
[0028] like Figure 1-7 As shown, a low-noise polished rice milling device comprises a bottom plate 1, a spring damper 2 is rotatably mounted on the top of the bottom plate 1, the top of the spring damper 2 is rotatably connected to a mounting plate 3, a support frame 4 is connected to the top of the mounting plate 3, the top of the support frame 4 is connected to a rice milling bin soundproof cover 5, a rice milling bin 6 is mounted on the inner side of the rice milling bin soundproof cover 5, a feed hopper 7 is connected to the top of the rice milling bin 6, one end of the rice milling bin 6 is connected to a discharge pipe 8, a rice milling roller 9 is rotatably mounted on the inner side of the rice milling bin 6, one end of the rice milling roller 9 passes through the rice milling bin soundproof cover 5 and is connected to a first pulley 10, and the mounting plate 3 is connected to a support frame 4, the top of the support frame 4 is connected to a rice milling bin soundproof cover 5, a rice milling bin 6 is mounted on the inner side of the rice milling bin 6, a feed hopper 7 is connected to the top of the rice milling bin 6, one end of the rice milling bin 6 is connected to a discharge pipe 8, a rice milling roller 9 is rotatably mounted on the inner side of the rice milling bin 6, one end of the rice milling roller 9 passes through the rice milling bin soundproof cover 5 and is connected to a first pulley 10, and the mounting plate 3 is connected to a support frame 4, the top of the support frame 4 is connected to a rice milling bin soundproof cover 5 A motor bin soundproof cover 11 is provided on the top of the mounting plate 3, a motor bin 12 is provided inside the motor bin soundproof cover 11, a motor 13 is installed inside the motor bin 12, one end of the motor bin 12 is hinged to an inspection door 24, an L-shaped noise reduction ventilation pipe 14 runs through and is connected to the inspection door 24, the output end of the motor 13 is connected to the second pulley 17 through a rotating shaft, a silent fan 19 is installed on the top of the mounting plate 3, one end of the discharge pipe 8 is connected to the air selection bin 20, and sound insulation cotton 23 is filled between the rice milling bin soundproof cover 5 and the rice milling bin 6, and between the motor bin soundproof cover 11 and the motor bin 12.
[0029] During the rice milling process, the noise generated by the rice milling inside the rice milling bin 6 and the noise generated by the operation of the motor 13 inside the motor bin 12 are isolated and reduced by the sound insulation cotton 23, so as to reduce the influence of the noise on the outside world. In addition, an L-shaped noise reduction ventilation duct 14 is arranged on the inspection door 24 hinged on the side of the motor bin 12. While not affecting the heat dissipation of the motor 13, the L-shaped noise reduction ventilation duct 14 is in an L-shaped shape, so that the airflow entering the L-shaped noise reduction ventilation duct 14 can change direction, thereby reducing the direct propagation of noise. An internal sound insulation and sound absorption board 15 and a tortuous path generating board 16 are arranged inside the L-shaped noise reduction ventilation duct 14. The internal sound insulation and sound absorption board 15 can effectively absorb and reflect noise, and the setting of the tortuous path generating board 16 makes the internal path of the L-shaped noise reduction ventilation duct 14 The twists and turns require the airflow to change direction multiple times, thereby increasing the reflection and scattering of noise on the wall and reducing the intensity of the noise. The L-shaped noise reduction ventilation pipe 14, the internal sound insulation and sound absorption board 15, and the tortuous path generating board 16 are arranged to achieve a good noise reduction effect. The device is also provided with a spring damper 2, so that the vibration generated during the operation of the device is effectively buffered by the spring damper 2, reducing the vibration force transmitted to the ground, and buffering the impact force received by the various components of the device, thereby reducing the noise generated by the vibration. In summary, the device greatly suppresses the noise generated during the operation of the rice mill, thereby reducing the noise in the factory building, and further reducing the damage to the hearing of the operator caused by the noise.
[0030] One side plate of the air selection bin 20 penetrates through and is connected to the silent fan 19 through a hose.
[0031] The silent blower 19 supplies air to the air separation bin 20 through a hose, and the rice grains entering the air separation bin 20 are air-separated to separate the bran from the rice grains.
[0032] A zigzag path generating plate 16 is provided inside the L-shaped noise reduction ventilation duct 14 , and inner sound insulation and sound absorption panels 15 are adhered to the inner surface of the L-shaped noise reduction ventilation duct 14 and the outer surface of the zigzag path generating plate 16 .
[0033] The L-shaped noise reduction ventilation duct 14 is L-shaped, so that the airflow entering the L-shaped noise reduction ventilation duct 14 can change direction and reduce the direct propagation of noise. An internal sound insulation and sound absorption panel 15 and a tortuous path generating panel 16 are arranged inside the L-shaped noise reduction ventilation duct 14. The internal sound insulation and sound absorption panel 15 can effectively absorb and reflect noise, and the tortuous path generating panel 16 makes the internal path of the L-shaped noise reduction ventilation duct 14 tortuous, so that the airflow needs to change direction multiple times, thereby increasing the reflection and scattering of noise on the wall surface and reducing the intensity of noise. Through the arrangement of the L-shaped noise reduction ventilation duct 14, the internal sound insulation and sound absorption panel 15 and the tortuous path generating panel 16, a good noise reduction effect is achieved.
[0034] The bottom of the air separation bin 20 is provided with a bran discharge pipe 21 and a polished rice discharge pipe 22 .
[0035] The polished rice discharge pipe 22 is aligned with the bottom end of the discharge pipe 8 up and down, and the polished rice falls directly from the discharge pipe 8 into the polished rice discharge pipe 22 , and the bran separated from the polished rice after air selection is discharged from the bran discharge pipe 21 .
[0036] The second pulley 17 and the first pulley 10 are connected via a belt 18 .
[0037] The second belt pulley 17 drives the first belt pulley 10 to rotate via the belt 18 .
[0038] Working principle and use process of the utility model: when the device is used, the brown rice to be milled into polished round-grained rice is put into the feed hopper 7, and enters the interior of the rice milling bin 6 through the feed hopper 7. The motor 13 drives the second pulley 17 to rotate, thereby pulling the first pulley 10 to rotate through the belt 18, and then drives the rice milling roller 9 to rotate, and the brown rice is milled and transported to the right. As the rice milling roller 9 rotates, the bran on the outside of the rice grain is separated from the rice grain through the friction of the rotating rice milling roller 9 and the inner wall of the rice milling bin 6 on the rice grain. As the rice grain moves to the right, the milling is completed. The rice grains are output to the air selection bin 20 through the discharge pipe 8, and the air is supplied to the air selection bin 20 through the silent fan 19 through the hose, and the rice grains entering the air selection bin 20 are air selected, so that the bran separated from the rice grains is separated, and the rice grains are discharged from the polished rice discharge pipe 22, and the bran is discharged from the bran discharge pipe 21, and the rice milling is completed. In the rice milling process, the noise generated by the rice milling inside the rice milling bin 6 and the noise generated by the operation of the motor 13 inside the motor bin 12 are isolated and reduced by the sound insulation cotton 23, so as to reduce the influence of the noise on the outside, and the inspection door 24 hinged on the side of the motor bin 12 is An L-shaped noise reduction ventilation duct 14 is provided. While not affecting the heat dissipation of the motor 13, the L-shaped noise reduction ventilation duct 14 is in an L-shaped shape, so that the airflow entering the L-shaped noise reduction ventilation duct 14 can change direction, thereby reducing the direct propagation of noise. An inner sound insulation and sound absorption board 15 and a tortuous path generating board 16 are arranged inside the L-shaped noise reduction ventilation duct 14. The inner sound insulation and sound absorption board 15 can effectively absorb and reflect noise, and the tortuous path generating board 16 is arranged to make the internal path of the L-shaped noise reduction ventilation duct 14 tortuous, so that the airflow needs to change direction multiple times, thereby increasing the reflection and scattering of noise on the wall surface, reducing the intensity of noise, and passing The arrangement of the L-shaped noise reduction ventilation duct 14, the internal sound insulation and sound absorbing board 15, and the tortuous path generating board 16 has a good noise reduction effect, and the device is also provided with a spring damper 2, so that the vibration generated during the operation of the device is effectively buffered by the spring damper 2, thereby reducing the vibration force transmitted to the ground and buffering the impact force received by the various components of the device, thereby reducing the noise generated by the vibration. In summary, the device greatly suppresses the noise generated during the operation of the rice mill, thereby reducing the factory noise, and further reducing the damage to the operator's hearing caused by the noise.
[0039] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.
[0040] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core ideas of the utility model. The above is only the preferred implementation method of the utility model. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principle of the utility model, they can make several improvements, embellishments or changes, and can also combine the above technical features in an appropriate manner; these improvements, embellishments, changes or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without improvement, should be regarded as the protection scope of the utility model.
Claims
1. A low-noise polished rice milling device, characterized in that: The invention comprises a bottom plate (1), a spring damper (2) is rotatably mounted on the top of the bottom plate (1), the top of the spring damper (2) is rotatably connected to a mounting plate (3), the top of the mounting plate (3) is connected to a support frame (4), the top of the support frame (4) is connected to a rice milling bin soundproof cover (5), a rice milling bin (6) is mounted inside the rice milling bin soundproof cover (5), a feed hopper (7) is connected to the top of the rice milling bin (6), one end of the rice milling bin (6) is connected to a discharge pipe (8), a rice milling roller (9) is rotatably mounted on the inside of the rice milling bin (6), one end of the rice milling roller (9) passes through the rice milling bin soundproof cover (5) and is connected to a first pulley (10), the top of the mounting plate (3) is connected to the first pulley (10), and the top of the mounting plate (3) is connected to the first pulley (10). A motor bin soundproof cover (11) is provided, a motor bin (12) is provided inside the motor bin soundproof cover (11), a motor (13) is installed inside the motor bin (12), one end of the motor bin (12) is hinged to an inspection door (24), an L-shaped noise reduction ventilation pipe (14) passes through and is connected to the inspection door (24), the output end of the motor (13) is connected to a second pulley (17) through a rotating shaft, a silent fan (19) is installed on the top of the mounting plate (3), one end of the discharge pipe (8) is connected to the air selection bin (20), and sound insulation cotton (23) is filled between the rice milling bin soundproof cover (5) and the rice milling bin (6), and between the motor bin soundproof cover (11) and the motor bin (12).
2. The low-noise polished rice milling device according to claim 1, characterized in that: One side plate of the wind selection bin (20) penetrates through and is connected to the silent fan (19) via a hose.
3. The low-noise polished rice milling device according to claim 1, characterized in that: A zigzag path generating plate (16) is provided inside the L-shaped noise reduction ventilation duct (14), and an inner sound insulation and sound absorption plate (15) is adhered to the inner surface of the L-shaped noise reduction ventilation duct (14) and the outer surface of the zigzag path generating plate (16).
4. The low-noise polished rice milling device according to claim 1, characterized in that: The bottom of the wind selection bin (20) is provided with a bran discharge pipe (21) and a polished rice discharge pipe (22).
5. The low-noise polished rice milling device according to claim 1, characterized in that: The second belt pulley (17) and the first belt pulley (10) are connected via a belt (18).