Vibrating screen assembly of combined rice mill

Abstract

The utility model relates to the technical field of rice husking machines, and discloses a combined rice husking machine vibrating screen assembly which comprises a screening shell, a screening cavity is formed in the screening shell, a screening box is movably connected in the screening cavity, and the combined rice husking machine vibrating screen assembly further comprises a feeding groove, a cam, a baffle and a transmission belt. A driving motor is controlled to work, a large belt wheel can be driven to rotate through a first connecting rod, a small belt wheel can be driven to rotate through a transmission belt, and therefore a cam on the outer side of a second connecting rod is driven to rotate, a screening box can shake front and back in a screening cavity, impurities in grains can be effectively screened through screening holes, and meanwhile the screening efficiency is improved. The first connecting rod can drive the baffle to rotate at the lower end in the feeding groove, so that the discharge amount of grains in the feeding groove is controlled, the screening amount of the grains in the screening box is further controlled, and the problem that according to an existing vibrating screen assembly of the rice mill, the screening amount of the grains is inconvenient to control is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of rice milling machines, in particular to a vibration screen component of a combined rice milling machine. Background Art

[0002] A rice mill is a machine that mills and husks grains. Traditional rice mills have a single function, which is only the rice milling and husk-removing function. In the process of processing grains, in order to achieve better rice milling and husk-removing effects, the grains are generally removed before being put into the rice mill.

[0003] After searching, the announcement number is CN212189980U, which discloses a vibrating screen for a rice milling machine, including a support rod, a screen support block, a screen body, a motor, a spring, and an adjusting screw; the support rod is provided with an adjusting hole A connected to the rice milling machine and a fixing hole connected to the adjusting screw; the design generates vibration through the eccentric block of the motor to drive the screen body to vibrate, thereby performing screening operations.

[0004] In the process of realizing the utility model, the inventors found that there are at least the following problems in the prior art that have not been solved. In the above case, although the screen body can be driven to vibrate to screen impurities and stones in the grains during use, the factors affecting the grain screening effect include the amount of grain screened above the screen body. When the amount of grain screened above the screen body is large, the grains are piled together, which will affect the screening accuracy.

[0005] Therefore, we propose a combined rice mill vibration screen assembly, which can automatically control the screening amount of grains on the surface of the screen body during the process of vibrating the screen body. Utility Model Content

[0006] The utility model aims to provide a combined rice milling machine vibration screen assembly, which solves the problems raised in the background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a combined rice milling machine vibration screen assembly comprises a screening shell, a screening chamber is provided inside the screening shell, a screening box is movably connected inside the screening chamber, and also comprises a feed trough, a cam, a baffle and a transmission belt, the feed trough is provided at the top of the screening shell, the cam is rotatably connected to the inner side of the screening chamber, the baffle is rotatably connected to the inner side of the lower end of the collecting trough, the inner side of the screening chamber is horizontally rotatably connected to a second connecting rod through a bearing, the second connecting rod passes through the cam and is fixedly connected to the cam, the inner side of the collecting trough is horizontally rotatably connected to a first connecting rod through a bearing, the baffle is evenly installed on the outer side of the first connecting rod, a small pulley is fixedly installed on one end of the second connecting rod placed on the outer side of the screening shell, the first connecting rod is placed on the outer side of the screening shell One end passes through the middle of a large pulley and is fixedly connected to the large pulley, and the large pulley is transmission-connected to the small pulley via a transmission belt.

[0008] As an optional solution of the technical solution of the present application, a motor frame is welded to the outer side of the screening shell, a driving motor is fixedly connected to the inner side of the motor frame by bolts, and the shaft end of the driving motor is fixedly connected to one end of the first connecting rod.

[0009] As an optional solution of the technical solution of the present application, the inner wall of the bottom end of the screening box is penetrated by long strip-shaped screening holes, and the screening holes are evenly distributed on the bottom side of the screening box. A connecting strip is horizontally welded at the front end of the inner side of the screening box, and the two ends of the connecting strip and the rear side of the screening box are fixedly connected with a strap by bolts, and the connecting strip and the rear side of the screening box are fixedly connected to the upper ends of the inner walls on both sides of the screening cavity by the straps.

[0010] As an optional solution of the technical solution of the present application, a collecting trough is fixedly connected to the outer side of the screening shell, and the collecting trough is placed on the bottom side of one end of the screening box.

[0011] As an optional solution of the technical solution of the present application, the bottom end of the feed trough is connected to the top end of the screening chamber, the baffle plate matches the size of the collecting trough, and the cam abuts against the outside of the screening box.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: the driving motor is controlled to work, and the large pulley can be driven to rotate through the first connecting rod, and the small pulley can be driven to rotate through the transmission belt, thereby driving the cam on the outside of the second connecting rod to rotate; the screening box can move in the screening chamber through the connecting strip and the belt; further, during the rotation of the cam, the screening box can swing back and forth in the screening chamber, and the impurities in the grains can be effectively screened through the screening holes; at the same time, the first connecting rod can drive the baffle to rotate at the lower end inside the feed trough, thereby controlling the discharge amount of grains inside the feed trough, and further controlling the screening amount of grains inside the screening box, thereby solving the problem that the existing vibrating screen assembly of the rice mill is inconvenient to control the screening amount of grains. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0014] Figure 1 This is a schematic diagram of the interior of a screening shell of a vibrating screen assembly of a combined rice mill of the utility model;

[0015] Figure 2 It is a side view of a vibration screen assembly of a combined rice mill of the utility model;

[0016] Figure 3 It is a schematic diagram of a screening box of a vibrating screen assembly of a combined rice milling machine according to the utility model.

[0017] In the figure: 1. screening shell; 11. screening chamber; 12. screening box; 13. screening hole; 14. collecting trough; 15. feeding trough; 16. connecting strip; 17. belt; 2. cam; 21. baffle; 22. motor frame; 23. driving motor; 24. first connecting rod; 25. large pulley; 26. second connecting rod; 27. small pulley; 28. transmission belt. DETAILED DESCRIPTION

[0018] See also Figure 1-Figure 3 The utility model provides a technical solution: a combined rice milling machine vibration screen assembly, including a screening shell 1, a screening chamber 11 is opened inside the screening shell 1, a screening box 12 is movably connected inside the screening chamber 11, and also includes a feed trough 15, a cam 2, a baffle 21 and a transmission belt 28. The feed trough 15 is opened at the top of the screening shell 1, and the bottom end of the feed trough 15 is communicated with the top of the inside of the screening chamber 11. The cam 2 is rotatably connected to the inner side of the screening chamber 11, and the cam 2 is against the outer side of the screening box 12. The inside of the screening chamber 11 is horizontally rotatably connected to a second connecting rod 26 through a bearing, and the second connecting rod 26 penetrates The cam 2 is fixedly connected to the cam 2, the interior of the collecting trough 14 is horizontally rotatably connected to the first connecting rod 24 through a bearing, the second connecting rod 26 is placed on the outside of the screening shell 1 and a small pulley 27 is fixedly installed at one end, the first connecting rod 24 is placed on the outside of the screening shell 1 and one end passes through the middle of the large pulley 25 and is fixedly connected to the large pulley 25, the large pulley 25 is transmission-connected to the small pulley 27 via a transmission belt 28, a motor frame 22 is welded to the outside of the screening shell 1, and a drive motor 23 is fixedly connected to the inner side of the motor frame 22 by bolts, and the shaft end of the drive motor 23 is fixedly connected to one end of the first connecting rod 24.

[0019] In this technical solution, the driving motor 23 is controlled by the corresponding controller, the large pulley 25 can be driven to rotate through the first connecting rod 24, the small pulley 27 can be driven to rotate through the transmission belt 28, thereby driving the cam 2 on the outside of the second connecting rod 26 to rotate, and the outer side of the cam 2 is in contact with the rear side of the screening box 12. When the convex end of the cam 2 fits with the rear side of the screening box 12, the screening box 12 can be pushed to move forward in the screening cavity 11. When the convex end of the cam 2 is away from the screening box 12, the screening box 12 moves backward and resets under the action of the belt 17. Further, during the rotation of the cam 2, the screening box 12 can swing back and forth in the screening cavity 11, and the impurities in the grains can be effectively screened through the screening holes 13.

[0020] In this embodiment, the baffle 21 is rotatably connected to the inside of the lower end of the collecting tank 14 , and the size of the baffle 21 matches that of the collecting tank 14 . The baffle 21 is evenly installed on the outside of the first connecting rod 24 .

[0021] In this technical solution, while the first connecting rod 24 drives the large pulley 25 to rotate, it can also drive the baffle 21 to rotate at the lower end inside the feed trough 15, thereby controlling the discharge amount of grain inside the feed trough 15, and further controlling the screening amount of grain inside the screening box 12, thereby solving the problem of the existing rice milling machine vibrating screen assembly being inconvenient to control the grain screening amount.

[0022] In this embodiment, the inner wall of the bottom end of the screening box 12 is penetrated by a long strip of screening holes 13, and the screening holes 13 are evenly distributed on the bottom side of the screening box 12. The outer side of the screening shell 1 is fixedly connected with a collecting groove 14, and the collecting groove 14 is placed on the bottom side of one end of the screening box 12. A connecting strip 16 is horizontally welded at the front end of the inner side of the screening box 12. The connecting strip 16 and the two ends of the rear side of the screening box 12 are fixedly connected with a strap 17 by bolts. The connecting strip 16 and the rear side of the screening box 12 are fixedly connected to the upper ends of the inner walls on both sides of the screening cavity 11 through the strap 17.

[0023] In this technical solution, the screening box 12 can be fixedly connected to the top of the screening chamber 11 by the strap 17, and the shaking screening operation of the screening box 12 will not be affected. The impurities produced by screening in the screening box 12 fall into the collecting trough 14 for storage under the action of inertia.

[0024] When a combined rice milling machine vibration screen assembly is used, the driving motor 23 is controlled by the corresponding controller to work, and the large pulley 25 can be driven to rotate through the first connecting rod 24, and the small pulley 27 can be driven to rotate through the transmission belt 28, thereby driving the cam 2 on the outside of the second connecting rod 26 to rotate, and the outer side of the cam 2 is abutted against the rear side of the screening box 12. When the convex end of the cam 2 is in contact with the rear side of the screening box 12, the screening box 12 can be pushed to move forward in the screening cavity 11. When the convex end of the cam 2 is away from the screening box 12, the screening box 12 moves backward and resets under the action of the belt 17. Furthermore, during the rotation of the cam 2, the screening box 12 can swing back and forth in the screening chamber 11, and the impurities in the grains can be effectively screened through the screening holes 13. The impurities screened in the screening box 12 fall into the collecting trough 14 for storage under the action of inertia. While the first connecting rod 24 drives the large pulley 25 to rotate, it can drive the baffle 21 to rotate at the lower end inside the feed trough 15, thereby controlling the discharge amount of grains inside the feed trough 15, and further controlling the screening amount of grains inside the screening box 12, thereby solving the problem that the existing vibrating screen assembly of the rice mill is inconvenient to control the screening amount of grains.

Claims

1. A combined rice milling machine vibration screen assembly, comprising a screening housing (1), wherein a screening chamber (11) is provided inside the screening housing (1), and a screening box (12) is movably connected inside the screening chamber (11), characterized in that: The invention also comprises a feed trough (15), a cam (2), a baffle (21) and a transmission belt (28), wherein the feed trough (15) is provided at the top end of the screening housing (1), the cam (2) is rotatably connected to the inner side of the screening chamber (11), the baffle (21) is rotatably connected to the inside of the lower end of the collecting trough (14), the inside of the screening chamber (11) is horizontally rotatably connected to a second connecting rod (26) via a bearing, the second connecting rod (26) passes through the cam (2) and is fixedly connected to the cam (2), the collecting trough (14) ) is horizontally rotatably connected to a first connecting rod (24) through a bearing, the baffle (21) is evenly mounted on the outside of the first connecting rod (24), one end of the second connecting rod (26) disposed on the outside of the screening housing (1) is fixedly mounted with a small pulley (27), the one end of the first connecting rod (24) disposed on the outside of the screening housing (1) passes through the middle of a large pulley (25) and is fixedly connected to the large pulley (25), and the large pulley (25) is transmission-connected to the small pulley (27) via a transmission belt (28).

2. The vibrating screen assembly of a combined rice mill according to claim 1, characterized in that: A motor frame (22) is welded to the outside of the screening shell (1), a driving motor (23) is fixedly connected to the inside of the motor frame (22) via bolts, and the shaft end of the driving motor (23) is fixedly connected to one end of a first connecting rod (24).

3. The vibrating screen assembly of a combined rice mill according to claim 1, characterized in that: The inner wall at the bottom end of the screening box (12) is penetrated by long strip-shaped screening holes (13), and the screening holes (13) are evenly distributed on the bottom side of the screening box (12). A connecting strip (16) is horizontally welded to the front end of the inner side of the screening box (12), and the two ends of the connecting strip (16) and the rear side of the screening box (12) are fixedly connected by a strap (17) via bolts. The connecting strip (16) and the rear side of the screening box (12) are fixedly connected to the upper ends of the inner walls on both sides of the screening chamber (11) via the strap (17).

4. The vibrating screen assembly of a combined rice mill according to claim 1, characterized in that: A collecting trough (14) is fixedly connected to the outer side of the screening shell (1), and the collecting trough (14) is arranged on the bottom side of one end of the screening box (12).

5. The vibrating screen assembly of a combined rice mill according to claim 1, characterized in that: The bottom end of the feed trough (15) is connected to the top end of the screening chamber (11), the baffle (21) matches the size of the collecting trough (14), and the cam (2) abuts against the outside of the screening box (12).

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