Screen box for corn harvester

Abstract

The screening box comprises a box body, a discharging door is embedded in the lower side of the left side wall of the box body, through openings are formed in the left side wall and the right side wall of the box body, a receiving box is fixedly installed on the right side wall of the exterior of the box body, a screen is hinged to the bottom wall of the through opening in the right side through a hinge, and an inclined baffle is arranged on the upper side of the screen. The inclined baffle is fixedly installed on the inner side wall of the box body, the inclined baffle is located on the upper side of the screen, when the screen vibrates corn kernels, the corn kernels can be shielded by the inclined baffle, the corn kernels can be separated from the screen, the corn kernels can be separated from the screen, and the corn kernels can be separated from the screen. And the situation that the corn kernels fly out of a large atmosphere and make frequent contact with the screen is avoided, the contact frequency of the corn kernels and the screen is increased, the corn kernels capable of passing through the screen conveniently and rapidly pass through the screen, and the screening efficiency is improved.

Description

Technical Field

[0001] This patent relates to the field of screen box technology, specifically a screen box for a corn harvester. Background Technology

[0002] A corn harvester, also known as a corn harvester, is a machine used to complete various production processes of corn harvesting, including stalk cutting, ear picking, husking, threshing, straw processing, and post-harvest tillage, depending on the planting method and agronomic requirements. After threshing, the corn needs to be screened through a sieve box. Existing sieve boxes consist of a box body and an internal vibrating screen. The vibration of the screen separates the corn kernels. However, the corn kernels are shaken up to a large extent by the screen, which can cause some kernels that could pass through the screen to fall through one side of the outlet instead of the screen. This results in fewer contacts between the corn kernels and the screen, leading to poorer screening efficiency. To address this, we propose a sieve box for corn harvesters. Utility Model Content

[0003] To address the shortcomings of existing technologies, the purpose of this patent is to provide a sieve box for a corn harvester. This patent features an inclined baffle fixedly installed on the inner wall of the box, positioned above the sieve mesh. When the sieve mesh vibrates the corn kernels, the inclined baffle can block the kernels, preventing them from flying out into the air and allowing them to frequently contact the sieve mesh. This increases the number of times the corn kernels come into contact with the sieve mesh, making it easier for corn kernels that can pass through the sieve mesh to pass through quickly and improving screening efficiency.

[0004] The technical solution adopted by this patent to solve its technical problem is: a sieve box for a corn harvester, including a box body, a discharge door embedded in the lower side of the left side wall of the box body, and openings on both the left and right side walls of the box body. A receiving box is fixedly installed on the outer right side wall of the box body. A screen is hinged to the bottom wall of the opening on the right side. An inclined baffle is provided on the upper side of the screen. The side wall of the inclined baffle is fixedly installed on the inner side wall of the box body. A feeding hopper is embedded on the left side of the inclined baffle. The left end of the screen extends to the outside through the opening on the left side. A motor is fixedly installed on the outer left side wall of the box body. A disc is fixedly installed at the front end of the motor shaft. A linkage rod is installed on the front side of the disc. The top end of the linkage rod is installed on the bottom left side of the screen.

[0005] The linkage rod includes a rod body, a connecting rod, and a bolt. The lower side of the rod body has a first circular hole, and a T-shaped rod is installed in the first circular hole. The end of the T-shaped rod is fixedly installed on the lower side of the front side of the disc. A U-shaped seat is fixedly installed at the top of the rod body. The top of the connecting rod is fixedly installed on the bottom left side of the screen. The lower side of the connecting rod has a second circular hole. The end of the bolt passes through the U-shaped seat and the second circular hole in sequence and is screwed with a nut. A positioning groove is provided on the outer side of the U-shaped seat. A positioning rod is integrally formed on the inner side of the end of the bolt and is inserted into the positioning groove.

[0006] Furthermore, a blank area is provided on the side wall of the bolt.

[0007] Furthermore, a rubber cover is fixedly installed on the top left side of the screen, and the right side of the rubber cover is fixedly installed on the outer left side wall of the box.

[0008] Furthermore, the inner bottom wall of the box is provided with an inclined surface.

[0009] Furthermore, a baffle plate is fixedly installed on the inner side wall of the feed hopper.

[0010] Furthermore, the baffle plate is positioned at an angle.

[0011] The beneficial effects of this patent are:

[0012] 1. This patent features an inclined baffle fixedly installed on the inner wall of the box. The inclined baffle is located above the screen. When the screen vibrates the corn kernels, the corn kernels can be blocked by the inclined baffle, preventing the corn kernels from flying out of the air and allowing the corn kernels to frequently contact the screen. This increases the number of times the corn kernels come into contact with the screen, making it easier for corn kernels that can pass through the screen to pass through quickly and improving the screening efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this patent.

[0014] Figure 2 This is a magnified side view of the linkage rod of this patent.

[0015] Figure 3 This is a 3D view of the rubber cover of this patent.

[0016] Figure 4 This is a schematic diagram of the feed hopper of this patent.

[0017] Explanation of reference numerals in the attached drawings: 1. Box body, 2. Unloading door, 3. Through port, 4. Receiving box, 5. Screen, 6. Inclined baffle, 7. Feed hopper, 8. Motor, 9. Disc, 10. Linkage rod, 11. Rod body, 12. T-shaped rod, 13. U-shaped seat, 14. Connecting rod, 15. Bolt, 16. Nut, 17. Positioning groove, 18. Positioning rod, 19. Blank area, 20. Rubber cover, 21. Inclined surface, 22. Baffle plate. Detailed Implementation

[0018] The present patent is further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the patent. Furthermore, it should be understood that after reading the teachings of this patent, those skilled in the art can make various alterations or modifications to this patent, and these equivalent forms also fall within the scope defined by the appended claims.

[0019] See Figure 1 , Figure 2 , Figure 3 and Figure 4 This is a schematic diagram of the structure of this patent. A sieve box for a corn harvester includes a box body 1. A discharge door 2 is embedded in the lower side of the left side wall of the box body 1. Both the left and right side walls of the box body 1 are provided with openings 3. A receiving box 4 is fixedly installed on the outer right side wall of the box body 1. A screen 5 is hinged to the bottom wall of the opening 3 on the right side. An inclined baffle 6 is provided on the upper side of the screen 5. The side wall of the inclined baffle 6 is fixedly installed on the inner side wall of the box body 1. A feed hopper 7 is embedded on the left side of the inclined baffle 6. The left end of the screen 5 extends to the outside through the opening 3 on the left side. A motor 8 is fixedly installed on the outer left side wall of the box body 1. A disc 9 is fixedly installed at the front end of the rotating shaft of the motor 8. A linkage rod 10 is installed on the front side of the disc 9. The top end of the linkage rod 10 is installed on the bottom left side of the screen 5.

[0020] The upper side of the left side wall of the receiving box 4 is provided with a material inlet that matches the right side opening 3, and the side wall of the receiving box 4 is also provided with a discharge door 2.

[0021] The linkage rod 10 includes a rod body 11, a connecting rod 14, and a bolt 15. The lower side of the rod body 11 is provided with a first circular hole, and a T-shaped rod 12 is provided in the first circular hole. The end of the T-shaped rod 12 is fixedly installed on the lower side of the front side of the disc 9. A U-shaped seat 13 is fixedly installed on the top of the rod body 11. The top of the connecting rod 14 is fixedly installed on the bottom left side of the screen 5. The lower side of the connecting rod 14 is provided with a second circular hole. The end of the bolt 15 passes through the U-shaped seat 13 and the second circular hole in sequence and is screwed with a nut 16. A positioning groove 17 is provided on one side of the outer side of the U-shaped seat 13. A positioning rod 18 is integrally formed on the inner side of the end of the bolt 15 and is inserted into the positioning groove 17.

[0022] The U-shaped seat 13 and bolt 15 are the main structures of the traditional hinge seat. The bolt 15 passes through the second round hole on the connecting rod 14. As the connecting rod 14 swings, it can easily drive the bolt and nut to rotate, or even loosen the nut. The positioning rod 18 is inserted into the positioning groove 17. At this time, the bolt 15 and the nut 16 screwed on the bolt 15 can be locked, thereby preventing the two from loosening.

[0023] Specifically, a blank area 19 is provided on the side wall of bolt 15.

[0024] The blank area 19 is set so that no thread is set in the blank area of ​​the bolt 15, in order to avoid serious wear with the second round hole on the connecting rod 14.

[0025] Specifically, a rubber cover 20 is fixedly installed on the top left side of the screen 5, and the right side of the rubber cover 20 is fixedly installed on the outer left side wall of the box 1.

[0026] like Figure 1 , 3 The rubber cover 20 shown has an open bottom and right side. The rubber cover 20 can block the opening 3 on the left side to prevent corn kernels from falling through the opening 3. In addition, due to the deformable properties of the rubber itself, it can adapt to the vibration of the screen 5.

[0027] Specifically, the bottom wall of the box 1 is provided with an inclined surface 21.

[0028] The inclined surface 21 is designed to facilitate the falling of corn kernels toward the discharge gate 2.

[0029] Specifically, a baffle plate 22 is fixedly installed on the inner side wall of the feed hopper 7.

[0030] Specifically, the baffle plate 22 is placed at an angle.

[0031] The baffle plate 22 is designed to prevent corn kernels that fall onto the screen 5 from being ejected from the feed hopper 7.

[0032] Working principle: The box 1 is installed at the rear of the harvester. The corn kernel channel after threshing can be connected to the feed hopper 7. The corn kernels fall onto the screen 5 through the feed hopper 7. The motor 8 drives the disc 9 to rotate. The rotation of the disc 9 causes the rod 11 to swing left and right and move up and down, which in turn causes the screen 5 to vibrate up and down. Small-diameter corn kernels fall through the screen 5. At the same time, the corn kernels that are shaken up are blocked by the inclined baffle 6 to prevent the corn kernels from flying out of the air. This allows the corn kernels to frequently contact the screen 5, so that the corn kernels that can pass through the screen 5 can pass through the screen quickly, improving the screening efficiency. The corn kernels that cannot pass through the screen 5 enter the receiving box 4 through the right-side opening 3.

[0033] It should be noted that the device structure and accompanying drawings of this patent mainly describe the principle of this patent. In terms of the technical aspects of this design principle, the setting of the device's power mechanism, power supply system and control system is not fully described. However, those skilled in the art who understand the principle of the above patent can clearly understand the specifics of its power mechanism, power supply system and control system.

[0034] This patent features an inclined baffle fixedly installed on the inner wall of the box, positioned above the screen. When the screen vibrates the corn kernels, the inclined baffle can block them, preventing them from flying out into the air and allowing them to frequently contact the screen. This increases the number of times the corn kernels come into contact with the screen, making it easier for corn kernels that can pass through the screen to pass through quickly and improving screening efficiency.

[0035] In the description of this patent, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "other end," "upper," "side," "top," "inner," "front," "center," and "both ends," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. At the same time, unless otherwise expressly specified and limited, the terms "set," "install," "connect," and "fixed installation," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two elements or the interaction relationship between two elements. Unless otherwise expressly limited, those skilled in the art can understand the specific meaning of the above terms in this patent according to the specific circumstances.

[0036] Although embodiments of this patent have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this patent, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sieve box for a corn harvester, characterized in that: The box includes a housing (1), a discharge door (2) is embedded on the lower side of the left side wall of the housing (1), and openings (3) are provided on both the left and right side walls of the housing (1). A receiving box (4) is fixedly installed on the outer right side wall of the housing (1). A screen (5) is hinged to the bottom wall of the opening (3) on the right side. An inclined baffle (6) is provided on the upper side of the screen (5). The side wall of the inclined baffle (6) is fixedly installed on the inner side wall of the housing (1). A feeding hopper (7) is embedded on the left side of the inclined baffle (6). The left end of the screen (5) extends to the outside through the opening (3) on the left side. A motor (8) is fixedly installed on the outer left side wall of the housing (1). A disc (9) is fixedly installed at the front end of the rotating shaft of the motor (8). A linkage rod (10) is installed on the front side of the disc (9). The top end of the linkage rod (10) is installed on the bottom left side of the screen (5). The linkage rod (10) includes a rod body (11), a connecting rod (14), and a bolt (15). The lower side of the rod body (11) is provided with a first circular hole, and a T-shaped rod (12) is provided in the first circular hole. The end of the T-shaped rod (12) is fixedly installed on the lower side of the front side of the disc (9). A U-shaped seat (13) is fixedly installed on the top of the rod body (11). The top of the connecting rod (14) is fixedly installed on the bottom left side of the screen (5). A second circular hole is provided on the lower side of the connecting rod (14). The end of the bolt (15) passes through the U-shaped seat (13) and the second circular hole in sequence and is screwed with a nut (16). A positioning groove (17) is provided on one side of the outer side of the U-shaped seat (13). A positioning rod (18) is integrally formed on the inner side of the end of the bolt (15). The positioning rod (18) is inserted into the positioning groove (17).

2. The sieve box for a corn harvester according to claim 1, characterized in that: The bolt (15) has a blank area (19) on its side wall.

3. A sieve box for a corn harvester according to claim 1, characterized in that: A rubber cover (20) is fixedly installed on the top left side of the screen (5), and the right side of the rubber cover (20) is fixedly installed on the outer left side wall of the box (1).

4. A sieve box for a corn harvester according to claim 1, characterized in that: The inner bottom wall of the box (1) is provided with an inclined surface (21).

5. A sieve box for a corn harvester according to claim 1, characterized in that: A baffle plate (22) is fixedly installed on the inner side wall of the feed hopper (7).

6. A sieve box for a corn harvester according to claim 5, characterized in that: The baffle plate (22) is placed at an angle.

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