Novel ratooning rice cleaning vibrating screen device

Abstract

The invention discloses a novel ratooning rice cleaning vibrating screen device which comprises a first screening mechanism and a second screening mechanism. The first screening mechanism comprises a first frame, a first shaking plate, a first straw walking screen and a swing driving mechanism. The first shaking plate and the first straw walking screen are fixedly arranged on the first frame. The front end of the first straw walker screen is adjacent to the rear end of the first shaking plate; the second screening mechanism comprises a second frame, a second shaking plate, a front scale sieve, a second straw walking sieve and a lower sieve, the second shaking plate is arranged below the first shaking plate in a non-full-covering mode, and the front scale sieve is arranged below the second straw walking sieve in a non-full-covering mode; the front end of the front scale sieve is adjacent to the rear end of the second shaking plate, the front end of the second straw walking sieve is adjacent to the rear end of the front scale sieve, and the lower sieve is arranged below the front scale sieve. According to the cleaning vibrating screen device, fed materials can be quickly layered and pushed backwards, accumulation is prevented, and the working efficiency is improved.

Description

Technical Field

[0001] The invention relates to a vibrating screen, in particular to a novel regenerated rice cleaning vibrating screen device. Background Art

[0002] As one of the important working parts of the harvester, the cleaning device is mainly used to clean the grains through the vibration screening of the vibrating screen and the airflow of the centrifugal fan. The seeds are separated from the impurities to obtain clean grains. Among them, the shaking plate is an important part of the cleaning device. It mainly layers the collected materials through vibration, and then pushes them backward with the airflow. Generally, the shaking plate is fixedly connected to the vibrating screen box and can only vibrate with the vibrating screen box. The amplitude and frequency of the vibrating screen box are set to allow the seeds to pass through the screen better, thereby reducing the impurity rate. The shaking plate generally requires a larger amplitude to effectively layer and diffuse the escaping materials, and then better cooperate with the airflow for cleaning. The fixed connection causes the amplitude and frequency of the shaking plate to be fixed, and the materials cannot be effectively layered and the pushing capacity is limited.

[0003] When the operation object is regenerated rice, due to the high moisture content of regenerated rice and the high yield and large feed volume when harvesting the first season of rice, the material on the shaking plate fixedly connected to the screen box is easy to accumulate and is not fluffy enough, and cannot be pushed back in time, and the cleaning function of the airflow field and the vibrating screen cannot be fully exerted, affecting the working performance of the entire cleaning device. Summary of the invention

[0004] The purpose of the present invention is to overcome the above-mentioned problems and provide a novel regenerated rice cleaning vibrating screen device, which can quickly layer the materials thrown in and push them backwards to prevent accumulation and improve work efficiency.

[0005] The purpose of the present invention is achieved through the following technical solutions:

[0006] A novel regenerated rice cleaning vibration screen device comprises a first screening mechanism and a second screening mechanism;

[0007] The first screening mechanism comprises a first frame, a first shaking plate, a first draft-scratching screen, and a swing driving mechanism for driving the first shaking plate and the first draft-scratching screen to swing, wherein the first shaking plate and the first draft-scratching screen are fixedly arranged on the first frame; the front end of the first draft-scratching screen is adjacent to the rear end of the first shaking plate; the swing center of the swing driving mechanism is perpendicular to the horizontal advancing direction of the material;

[0008] The second screening mechanism includes a second frame and a second shaking plate, a front fish scale screen, a second draft-chasing screen, and a lower screen arranged on the second frame. The second shaking plate is arranged below the first shaking plate in a non-full covering manner, and the front fish scale screen is arranged below the second draft-chasing screen in a non-full covering manner; the front end of the front fish scale screen is adjacent to the rear end of the second shaking plate, the front end of the second draft-chasing screen is adjacent to the rear end of the front fish scale screen, and the lower screen is arranged below the front fish scale screen.

[0009] The working principle of the novel regenerated rice cleaning vibrating screen device is as follows:

[0010] During operation, the material is placed on the first shaking plate and the second shaking plate, and the first shaking plate and the second shaking plate respectively transport the respective materials backward; wherein, driven by the swing drive mechanism, the material falling on the first shaking plate is evenly pushed to the front fish scale screen below under the action of the first shaking plate and the first draft screen, and the amplitude of the shaking plate of the first frame is larger, which can better stratify the material. Under the joint action of the first shaking plate and the second shaking plate, the material pushing capacity is improved, which can better adapt to the working environment with large feeding volume and improve the cleaning efficiency.

[0011] In a preferred embodiment of the present invention, a pressure sensor is provided on the upper surface of the front end of the first shaking plate, and the pressure sensor is electrically connected to the controller, and the controller is electrically connected to the swing drive mechanism. Through the above structure, the pressure sensor can control the swing frequency of the swing drive mechanism by sensing the amount of material on the first shaking plate. The more material there is, the faster the swing is, thereby automatically adjusting the frequency of the screening movement of the first shaking plate to control the frequency of pushing the material backward.

[0012] A preferred embodiment of the present invention is that the front end portion of the first draft-pulling screen is located below the rear end portion of the first shaking plate, and the first draft-pulling screen includes a first screen plate and a mounting rod, wherein a plurality of first screen plates are provided and arranged along a direction perpendicular to the horizontal advance direction of the material, and two mounting rods are provided and fixedly pass through the plurality of first screen plates.

[0013] Furthermore, the spacing between adjacent first screen plates is 30 mm.

[0014] A preferred solution of the present invention, wherein the swing drive mechanism comprises a swing drive motor and a swing transmission assembly, the swing transmission assembly comprises a synchronous belt assembly and a connecting rod assembly, the synchronous belt assembly comprises a belt and a pulley, the pulleys are provided with three and are respectively a driving pulley and two driven pulleys; the belt is wound between the three pulleys; the driving pulley is connected to the output shaft of the swing drive motor; the connecting rod assembly is provided with two groups and each group comprises a transmission shaft and a crank, the two transmission shafts are rotatably connected to the second frame in parallel, one end of the two transmission shafts is fixedly connected to the two driven pulleys respectively, the other end of the two transmission shafts is fixedly connected to one end of the two cranks respectively; the other end of the two cranks is rotatably connected to the ends of the two mounting rods respectively. Through the above structure, under the drive of the swing drive motor, the two transmission shafts are driven by the synchronous belt assembly to rotate synchronously, and then the two transmission shafts drive the two cranks to swing, and then drive the first shaking plate and the first draft screen to swing back and forth, thereby loosening the material and improving the pushing efficiency.

[0015] In a preferred embodiment of the present invention, the front fish scale screen is composed of a plurality of screen plates arranged in a direction parallel to the horizontal advancing direction of the material, and the spacing between adjacent screen plates is 15 mm to 30 mm.

[0016] Furthermore, along the direction in which the material moves horizontally, the front fish scale screen is tilted upward, and the angle between the front fish scale screen and the horizontal plane is 2°-4°.

[0017] In a preferred embodiment of the present invention, a rear fish scale screen is provided below the second draft-by-draft screen, the rear fish scale screen is parallel to the front fish scale screen, and the spacing between the screen plates of the rear fish scale screen is 15 mm to 30 mm.

[0018] In a preferred embodiment of the present invention, the second draft screen is composed of a plurality of second screen plates arranged along a direction perpendicular to the horizontal advancing direction of the material, and the spacing between adjacent second screen plates is 30 mm.

[0019] A preferred embodiment of the present invention is that a diverter plate is provided below the second shaking plate, which divides the airflow emitted by the fan into an upper airflow and a lower airflow, wherein the upper airflow blows obliquely from bottom to top toward the end of the second shaking plate and the front end of the front fish scale screen, and the lower airflow blows obliquely from bottom to top toward the middle and rear end of the front fish scale screen.

[0020] In a preferred embodiment of the present invention, the lower screen is a woven screen having an aperture of 20 mm×20 mm, and the woven screen is tilted upward, with an angle between the woven screen and the horizontal plane being 2°-4°.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The novel regenerated rice cleaning vibration screen device of the present invention can better stratify materials, improve the material pushing capacity, better adapt to the working environment with large feed volume, and improve the cleaning operation efficiency by arranging a swingable shaking plate and a draft-pulling screen above the traditional vibration screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the novel regenerated rice cleaning vibration screen device of the present invention.

[0024] Figure 2 It is a schematic diagram of the three-dimensional structure of the first screening mechanism of the present invention.

[0025] Figure 3 It is a front view of the shaking plate, each screen body and the diverter plate of the present invention. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described below in conjunction with embodiments and drawings, but the embodiments of the present invention are not limited thereto.

[0027] See also Figure 1-Figure 3 The novel regenerated rice cleaning vibration screen device of this embodiment comprises a first screening mechanism and a second screening mechanism; the first screening mechanism comprises a first frame 1, a first shaking plate 2, a first draft-scraping screen 3 and a swinging driving mechanism for driving the first shaking plate 2 and the first draft-scraping screen 3 to swing, the first shaking plate 2 and the first draft-scraping screen 3 are fixedly arranged on the first frame 1; the front end of the first draft-scraping screen 3 is adjacent to the rear end of the first shaking plate 2; the swinging center of the swinging driving mechanism is perpendicular to the horizontal advancing direction of the material.

[0028] See also Figure 1-Figure 2 A pressure sensor 4 is provided on the front upper surface of the first shaking plate 2, and the pressure sensor 4 is electrically connected to the controller, and the controller is electrically connected to the swing drive mechanism. Through the above structure, the pressure sensor 4 can control the swing frequency of the swing drive mechanism by sensing the amount of material on the first shaking plate 2. The more material there is, the faster the swing is, thereby automatically adjusting the frequency of the screening movement of the first shaking plate 2 to control the frequency of pushing the material backward.

[0029] See also Figure 1-Figure 2 The front end of the first draft-pulling screen 3 is located below the rear end of the first shaking plate 2. The first draft-pulling screen 3 includes a first screen piece 5 and a mounting rod 6. The first screen pieces 5 are provided in plurality and are arranged in a direction perpendicular to the horizontal advancing direction of the material. The mounting rods 6 are provided with two and fixedly pass through the plurality of first screen pieces 5.

[0030] Furthermore, the interval between adjacent first screen plates 5 is 30 mm.

[0031] See also Figure 1-Figure 2 The swing drive mechanism includes a swing drive motor 7 and a swing transmission assembly, the swing transmission assembly includes a synchronous belt assembly and a connecting rod assembly, the synchronous belt assembly includes a belt 8 and a pulley, the pulley is provided with three, and respectively includes a driving pulley 9 and two driven pulleys 10; the belt 8 is wound between the three pulleys; the driving pulley 9 is connected to the output shaft of the swing drive motor 7; the connecting rod assembly is provided with two groups and each group includes a transmission shaft 11 and a crank 12, the two transmission shafts 11 are rotatably connected to the second frame 13 in parallel, one end of the two transmission shafts 11 is fixedly connected to the two driven pulleys 10 respectively, and the other end of the two transmission shafts 11 is fixedly connected to one end of the two cranks 12 respectively; the other end of the two cranks 12 is rotatably connected to the end of the two mounting rods 6 respectively. Through the above structure, under the drive of the swing drive motor 7, the two transmission shafts 11 are driven to rotate synchronously through the synchronous belt assembly, and then the two transmission shafts 11 drive the two cranks 12 to swing, and then drive the first shaking plate 2 and the first draft screen 3 to swing back and forth, thereby loosening the material and improving the pushing efficiency.

[0032] See also Figure 1-Figure 3 The second screening mechanism includes a second frame 13 and a second shaking plate 14, a front fish scale screen 15, a second draft-by-draft screen 16, and a lower screen 17 arranged on the second frame 13. The second shaking plate 14 is arranged below the first shaking plate 2 in a non-full covering manner, and the front fish scale screen 15 is arranged below the second draft-by-draft screen 16 in a non-full covering manner; the front end of the front fish scale screen 15 is adjacent to the rear end of the second shaking plate 14, the front end of the second draft-by-draft screen 16 is adjacent to the rear end of the front fish scale screen 15, and the lower screen 17 is arranged below the front fish scale screen 15.

[0033] See also Figure 1-Figure 3 The front fish scale screen 15 is composed of a plurality of screen plates arranged in a direction parallel to the horizontal advancing direction of the material, and the spacing between adjacent screen plates is 15 mm to 30 mm.

[0034] Furthermore, along the direction in which the material moves horizontally, the front fish scale screen 15 is tilted upward, and the angle between the front fish scale screen 15 and the horizontal plane is 2°-4°.

[0035] See also Figure 1-Figure 3 A rear fish scale screen 18 is provided below the second draft-by-draft screen 16. The rear fish scale screen 18 is parallel to the front fish scale screen 15. The spacing between the screen sheets of the rear fish scale screen 18 is 15 mm to 30 mm.

[0036] See also Figure 1-Figure 3 The second draft screen 16 is composed of a plurality of second screen plates arranged along a direction perpendicular to the horizontal advancing direction of the material, and the spacing between adjacent second screen plates is 30 mm.

[0037] See also Figure 3 A splitter plate 19 is provided below the second shaking plate 14, which divides the airflow emitted by the fan into an upper airflow and a lower airflow. The upper airflow blows obliquely from bottom to top toward the end of the second shaking plate 14 and the front end of the front fish scale screen 15, and the lower airflow blows obliquely from bottom to top toward the middle and rear end of the front fish scale screen 15.

[0038] Specifically, the lower screen 17 is a woven screen with an aperture of 20 mm×20 mm. The woven screen is tilted upward, and the angle between the woven screen and the horizontal plane is 2°-4°.

[0039] See also Figure 1-Figure 3 The working principle of the novel regenerated rice cleaning vibration screen device of this embodiment is as follows:

[0040] During operation, the material is placed on the first shaking plate 2 and the second shaking plate 14, and the first shaking plate 2 and the second shaking plate 14 respectively transport the respective materials backward; wherein, under the drive of the swing drive mechanism, the material falling on the first shaking plate 2 is evenly pushed to the front fish scale screen 15 below under the action of the first shaking plate 2 and the first draft-stepping screen 3, and the amplitude of the shaking plate of the first frame 1 is larger, which can better stratify the material. Under the joint action of the first shaking plate 2 and the second shaking plate 14, the material pushing capacity is improved, which can better adapt to the working environment with large feeding amount, and improve the cleaning efficiency.

[0041] The above is a preferred embodiment of the present invention, but the embodiment of the present invention is not limited to the above content. Any other changes, modifications, substitutions, combinations, and simplifications made without departing from the spirit and principles of the present invention should be equivalent replacement methods and are included in the protection scope of the present invention.

Claims

1. A novel vibrating screen device for cleaning regenerated rice, characterized in that: comprising a first screening mechanism and a second screening mechanism; The first screening mechanism comprises a first frame, a first shaking plate, a first draft-scratching screen, and a swing driving mechanism for driving the first shaking plate and the first draft-scratching screen to swing, wherein the first shaking plate and the first draft-scratching screen are fixedly arranged on the first frame; the front end of the first draft-scratching screen is adjacent to the rear end of the first shaking plate; the swing center of the swing driving mechanism is perpendicular to the horizontal advancing direction of the material; The second screening mechanism includes a second frame and a second shaking plate, a front fish scale screen, a second draft-chasing screen, and a lower screen arranged on the second frame. The second shaking plate is arranged below the first shaking plate in a non-full covering manner, and the front fish scale screen is arranged below the second draft-chasing screen in a non-full covering manner; the front end of the front fish scale screen is adjacent to the rear end of the second shaking plate, the front end of the second draft-chasing screen is adjacent to the rear end of the front fish scale screen, and the lower screen is arranged below the front fish scale screen.

2. The novel regenerated rice cleaning vibrating screen device according to claim 1 is characterized in that: A pressure sensor is provided on the front upper surface of the first shaking plate. The pressure sensor is electrically connected to a controller, and the controller is electrically connected to the swing driving mechanism.

3. The novel regenerated rice cleaning vibrating screen device according to claim 1 is characterized in that: The front end of the first draft-pulling screen is located below the rear end of the first shaking plate. The first draft-pulling screen includes a first screen plate and a mounting rod. A plurality of first screen plates are provided and are arranged in a direction perpendicular to the horizontal advance of the material. Two mounting rods are provided and fixedly pass through the plurality of first screen plates. The spacing between adjacent first screen plates is 30 mm.

4. The novel regenerated rice cleaning vibrating screen device according to claim 1, characterized in that: The swing drive mechanism includes a swing drive motor and a swing transmission assembly, the swing transmission assembly includes a synchronous belt assembly and a connecting rod assembly, the synchronous belt assembly includes a belt and a pulley, the pulleys are provided with three, one is a driving pulley and two are driven pulleys respectively; the belt is wound between the three pulleys; the driving pulley is connected to the output shaft of the swing drive motor; the connecting rod assembly is provided with two groups and each group includes a transmission shaft and a crank, the two transmission shafts are rotatably connected to the second frame in parallel, one end of the two transmission shafts is fixedly connected to the two driven pulleys respectively, and the other end of the two transmission shafts is fixedly connected to one end of the two cranks respectively; the other end of the two cranks is rotatably connected to the end of the two mounting rods respectively.

5. The novel regenerated rice cleaning vibrating screen device according to claim 1 is characterized in that: The front fish scale screen is composed of a plurality of screen plates arranged in a direction parallel to the horizontal advancing direction of the material, and the spacing between adjacent screen plates is 15 mm to 30 mm.

6. The novel regenerated rice cleaning vibrating screen device according to claim 5, characterized in that: Along the direction in which the material moves horizontally, the front fish scale screen is tilted upward, and the angle between the front fish scale screen and the horizontal plane is 2°-4°.

7. The novel regenerated rice cleaning vibrating screen device according to claim 1, characterized in that: A rear fish scale screen is provided below the second draft-by-draft screen. The rear fish scale screen is parallel to the front fish scale screen, and the spacing between the screen sheets of the rear fish scale screen is 15 mm to 30 mm.

8. The novel regenerated rice cleaning vibrating screen device according to claim 1, characterized in that: The second draft screen is composed of a plurality of second screen plates arranged along a direction perpendicular to the horizontal advancing direction of the material, and the spacing between adjacent second screen plates is 30 mm.

9. The novel regenerated rice cleaning vibrating screen device according to claim 1, characterized in that: A diverter plate is provided below the second shaking plate, which divides the airflow emitted by the fan into an upper airflow and a lower airflow. The upper airflow blows obliquely from bottom to top toward the end of the second shaking plate and the front end of the front fish scale screen, and the lower airflow blows obliquely from bottom to top toward the middle and rear end of the front fish scale screen.

10. The novel regenerated rice cleaning vibrating screen device according to claim 1, characterized in that: The lower screen is a woven screen with an aperture of 20 mm×20 mm. The woven screen is tilted upward, and the angle between the woven screen and the horizontal plane is 2°-4°.

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