Threshing and separating device for rice harvester

Abstract

The utility model discloses a threshing and separating device for a rice harvester, and relates to the technical field of threshing and separating devices for harvesters, the threshing and separating device comprises a discharging bin, a screening bin and a threshing bin, the screening bin is arranged above the discharging bin, the threshing bin is arranged above the screening bin, and the discharging bin is arranged above the threshing bin. Communicating ports are formed among the discharging bin, the screening bin and the threshing bin, a threshing roller is installed in the threshing bin, a threshing plate is arranged on one side of the threshing roller, a plurality of threshing teeth are arranged on the surface of the threshing roller, a driving shaft is arranged in the threshing roller in a penetrating mode, and a driving shaft is arranged in the driving shaft in a penetrating mode. According to the scheme, the problem that in the prior art, a rice threshing device mostly directly utilizes an air blower to conduct sorting operation to screen threshed rice, and therefore the screening quality and effect of the rice threshing device are affected is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a threshing and separating device for harvester technical field, concretely is a threshing and separating device for rice harvester. BACKGROUND

[0002] The main role of the threshing and separating device for rice harvester includes separating grain from the ear shaft and separating grain and broken ear impurities, and the threshing machine is a harvesting machine, which can separate crop seeds from stems, and is mainly a harvesting machine for grain crops.

[0003] For example, the Chinese authorized patent (a rice threshing device) with the announcement number CN219459805U: including threshing bin, the threshing bin is provided with threshing roller, the side wall bottom of threshing bin is provided with discharge port, the upper side of threshing bin is provided with feed inlet, the horizontal surface of feed inlet is provided with feed platform, the upper surface of feed platform is provided with clamping conveyor track, the clamping conveyor track is installed on a plurality of track support wheels, the track support wheels are installed on the outer wall of threshing bin through fixing frame, the outer surface of clamping conveyor track is provided with a plurality of rows of conveying teeth, a strip hole is formed on the feed platform corresponding to each row of conveying teeth, the strip hole on the feed platform cooperates with the clamping conveyor track, which not only can effectively clamp the rice bundle, but also can continuously convey the rice bundle to the other end, so that the continuous feeding of the rice bundle can be realized, thereby significantly improving the threshing efficiency.

[0004] However, the above-mentioned existing technology of rice threshing device mostly directly utilizes the air blower sorting operation to screen the threshed rice, thereby affecting the screening quality and effect; therefore, it does not meet the existing demand, and for this, we propose a threshing and separating device for rice harvester. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a threshing and separating device for rice harvester to solve the problem that the existing technology of rice threshing device mostly directly utilizes the air blower sorting operation to screen the threshed rice, thereby affecting the screening quality and effect in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a threshing and separating device for rice harvester, including discharge bin, screening bin and threshing bin, the upper surface of discharge bin is provided with screening bin, the upper surface of screening bin is provided with threshing bin, the discharge bin, screening bin and threshing bin are all provided with communicating port, the inside of threshing bin is installed with threshing roller, one side of threshing roller is provided with threshing plate, the surface of threshing roller is provided with threshing tooth, the threshing tooth is provided with a plurality of, the inside of threshing roller is provided with driving shaft, the both sides of driving shaft extend to the both sides of threshing roller.

[0007] Preferably, the surface of the threshing plate is provided with a plurality of grain passing grooves, and the upper and lower ends of both sides of the threshing plate are provided with fixing plates.

[0008] Preferably, the screening chamber is provided with a screening plate inside, and a vibrating rod is provided on both ends of the screening plate, the vibrating rod extending to one side of the screening chamber.

[0009] Preferably, a feeding hopper is provided on one side of the top of the threshing bin, and an inspection port is provided on one side of the feeding hopper.

[0010] Preferably, a second fixing frame is provided on the front end face of the threshing chamber, a fan is provided between the second fixing frames, a slag discharge port is provided on the rear end face of the threshing chamber, and a drive motor is provided on one side end face of the threshing chamber.

[0011] Preferably, support frames are provided at both the upper and lower ends of the screening chamber and the threshing chamber, and a vibration motor is installed on one end face of the screening chamber.

[0012] Preferably, the rear end face of the discharge bin is provided with a discharge port, and the bottom sides of the discharge bin are provided with first fixing frames.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model features a screening chamber located below the threshing chamber. When the drive motor starts, the threshing rollers begin to rotate, feeding rice straw into the threshing chamber through the feeding hopper. The threshing teeth on the surface of the threshing rollers rotate and strike the rice grains off the straws. The threshing plate separates the rice grains from the straws. The threshed rice grains enter the screening chamber through the grain-passing grooves on the threshing plate. A blower blows the rice straws towards the slag discharge port. Because the slag discharge port is sloped downwards, the rice straws are automatically discharged from the slag discharge port. Then, a vibrating motor drives a vibrating rod to move the screening plate to perform a secondary screening of the rice grains, ensuring the quality of threshing and separation. After screening, the discharge port at the rear end of the discharge chamber is opened for discharge. This invention solves the problem that most existing rice threshing devices directly use blowers to screen the threshed rice, thus affecting the screening quality and effect.

[0015] 2. By setting the first and second fixing frames at the bottom of the discharge hopper and the front end of the threshing hopper respectively, the entire device can be fixed in multiple directions, ensuring its stability during use. At the same time, the fixing plates set at the upper and lower ends of the two sides of the threshing plate can be fixed by installing fixing screws on the fixing plates before operation, which facilitates the replacement and installation of the threshing plate. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the threshing and separating device of this utility model;

[0017] Figure 2 It is the enlarged schematic view of the threshing roller structure of the utility model;

[0018] Figure 3 It is the enlarged schematic view of the threshing plate structure of the utility model;

[0019] Figure 4 It is the enlarged schematic view of the internal partial structure of the screening bin of the utility model;

[0020] In the figure: 1, discharge bin; 2, screening bin; 3, threshing bin; 4, access hole; 5, feeding hopper; 6, driving motor; 7, vibration motor; 8, support frame; 9, first fixed frame; 10, second fixed frame; 11, slag discharge port; 12, threshing roller; 13, driving shaft; 14, threshing tooth; 15, threshing plate; 16, particle passing groove; 17, fixed plate; 18, screening plate; 19, vibration rod. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0022] Please refer to Figures 1-4The utility model provides an embodiment: a rice harvester is with threshing and separating device, including discharge bin 1, screening bin 2 and threshing bin 3, the top of discharge bin 1 is provided with screening bin 2, the top of screening bin 2 is provided with threshing bin 3, and the communication port is evenly provided between discharge bin 1, screening bin 2 and threshing bin 3, the inside installation of threshing bin 3 is provided with threshing roller 12, one side of threshing roller 12 is provided with threshing board 15, the surface of threshing roller 12 is provided with threshing tooth 14, threshing tooth 14 is provided with several, the inside through -hole of threshing roller 12 is provided with driving shaft 13, and the both sides of driving shaft 13 extend to the both sides of threshing roller 12, when driving motor 6 starts, threshing roller 12 starts rotating, and the rice straw is put into threshing bin 3 through feeding hopper 5, and the rice is separated from the rice straw by the rotation of threshing tooth 14 on the surface of threshing roller 12, threshing board 15 separates the rice and the rice straw, and the threshed rice enters the inside of screening bin 2 through the grain slot 16 on threshing board 15, and the rice straw is blown to the residue discharge port 11 by the fan, because the residue discharge port 11 is downward slope type, the rice straw is automatically discharged from the residue discharge port 11, then the vibration motor 7 drives the vibration rod 19 to drive the screening board 18 to secondary screen the rice, guarantees the quality of threshing and separating, and the discharge bin 1 rear end surface discharge port is opened to discharge after screening, and the problem that the rice threshing device in the prior art mostly directly utilizes the air blower sorting operation to screen the threshed rice, thereby influencing the screening quality and effect is solved. By setting the first fixed frame 9 and the second fixed frame 10 at the bottom of the discharge bin 1 and the front end face of the threshing bin 3 respectively, the device whole can be fixed in multiple directions, the stability during use is guaranteed, and the fixed plate 17 is arranged on the upper end and the lower end of the both side end faces of the threshing board 15, the fixed screw is installed on the fixed plate 17 before operation to fix, so that the replacement and installation of the threshing board 15 are facilitated.

[0023] Please refer to Figure 3 The surface of the threshing board 15 is provided with a plurality of grain slots 16, and the upper end and the lower end of the both side end faces of the threshing board 15 are provided with fixed plates 17.

[0024] Please refer to Figure 1 And Figure 4 The inside of the screening bin 2 is provided with a screening board 18, the both side end faces of the screening board 18 are provided with vibration rods 19, the vibration rods 19 extend to one side of the screening bin 2, and the vibration motor 7 drives the vibration rods 19 to drive the screening board 18 to secondary screen the rice, so as to guarantee the quality of threshing and separating.

[0025] Please refer to Figure 1The top of the threshing bin 3 is provided with a feeding hopper 5 on one side, the feeding hopper 5 is provided with an inspection hole 4 on one side, the front end face of the threshing bin 3 is provided with a second fixing frame 10, the second fixing frame 10 is provided with a fan, the rear end face of the threshing bin 3 is provided with a residue discharge port 11, the side end face of the threshing bin 3 is provided with a driving motor 6, the fan blows the rice straw to the residue discharge port 11, and the rice straw is automatically discharged from the residue discharge port 11 due to the downward slope of the residue discharge port 11.

[0026] Please refer to Figure 1 The upper and lower ends between the screening bin 2 and the threshing bin 3 are provided with supporting frames 8, and the side end face of the screening bin 2 is provided with a vibration motor 7.

[0027] Please refer to Figure 1 The rear end face of the discharging bin 1 is provided with a discharging port, and the bottom of the discharging bin 1 is provided with first fixing frames 9 on both sides, so that the device can be fixed in multiple directions, and the stability during use is ensured.

[0028] It is apparent for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all aspects as exemplary and non-restrictive, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and range of the equivalent elements of the claims are intended to be embraced in the present application. Any reference signs in the claims should not be considered as limiting the claims involved.

Claims

1. A threshing and separating device for a rice harvester, comprising a discharge bin (1), a screening bin (2), and a threshing bin (3), characterized in that: A screening chamber (2) is provided above the discharge chamber (1), and a threshing chamber (3) is provided above the screening chamber (2). A communication port is provided between the discharge chamber (1), the screening chamber (2), and the threshing chamber (3). A threshing roller (12) is installed inside the threshing chamber (3). A threshing plate (15) is provided on one side of the threshing roller (12). A threshing tooth (14) is provided on the surface of the threshing roller (12). A plurality of threshing teeth (14) are provided. A drive shaft (13) is provided through the inside of the threshing roller (12). Both sides of the drive shaft (13) extend to both sides of the threshing roller (12).

2. The threshing and separating device for a rice harvester according to claim 1, characterized in that: The surface of the threshing plate (15) is provided with a plurality of grain passing grooves (16), and the upper and lower ends of both sides of the threshing plate (15) are provided with fixing plates (17).

3. The threshing and separating device for a rice harvester according to claim 1, characterized in that: The screening chamber (2) is equipped with a screening plate (18), and vibration rods (19) are provided on both ends of the screening plate (18), with the vibration rods (19) extending to one side of the screening chamber (2).

4. The threshing and separating device for a rice harvester according to claim 1, characterized in that: A feeding hopper (5) is provided on one side of the top of the threshing chamber (3), and an inspection port (4) is provided on one side of the feeding hopper (5).

5. The threshing and separating device for a rice harvester according to claim 1, characterized in that: The front end face of the threshing chamber (3) is provided with a second fixing frame (10), and a fan is provided between the second fixing frames (10). The rear end face of the threshing chamber (3) is provided with a slag discharge port (11), and a drive motor (6) is provided on one side end face of the threshing chamber (3).

6. The threshing and separating device for a rice harvester according to claim 1, characterized in that: Support frames (8) are provided at the upper and lower ends of the screening chamber (2) and the threshing chamber (3), and a vibration motor (7) is installed on one side of the screening chamber (2).

7. The threshing and separating device for a rice harvester according to claim 1, characterized in that: The discharge hopper (1) has a discharge port on its rear end face, and the bottom of the discharge hopper (1) has a first fixing frame (9) on both sides.

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