CN211322109U - Spiral screen grass-discharging thresher - Google Patents

Abstract

The utility model discloses a spiral screen selects row's grass thresher, fight including frame, cylinder, screen cloth, seed grain recovery unit and millet, the millet is fought and is fixed in the frame, cylinder and screen cloth are all installed in the millet is fought, the screen cloth is located the below of cylinder, the millet is fought and is equipped with the feeding threshing warehouse side by side and selects the grass storehouse, the cylinder link up the feeding threshing warehouse and selects the grass storehouse, be equipped with seed grain recovery unit and seed grain separation vitex in the screening row grass storehouse. The utility model has the advantages of reasonable structural design, small operation load, light weight, small vibration, low loss rate, smooth grass discharge and convenient use.

Description

Spiral screen grass-discharging thresher

Technical Field

The utility model relates to the field of agricultural machinery, in particular to a spiral screen selected grass discharge thresher.

Background

Rice is one of the main grain crops in China and is the main economic source of farmers. However, in China, many paddy fields belong to hilly lands, land blocks are small, so that the time is wasted for farmers to harvest, and the self-discharging thresher for paddy serves as a small agricultural machine which is widely applied and can separate crop seeds from stalks.

The existing threshing machine is generally used for vibrating, screening and grass discharging, a threshing cylinder is driven by a motor to rotate, crops are fed from a feeding port of the threshing cylinder, and the threshing operation can be carried out along with the rotation of the threshing cylinder. The grains and the broken rod and the broken blade are mixed together and are discharged together with the vibrating screen, so that the loss rate is increased, and the running load and the weight of the whole machine are increased. And in the operation process, the paddy rotates along with the roller in the roller, and the threshed grains are easy to jump out from the grass discharging port in the rotation process.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention is directed to a spiral screen selected from a straw thresher having a reasonable design, a simple structure, a small operation load, a light weight, a high threshing rate, a low loss rate, and a low impurity content of grains.

According to the utility model discloses an aspect provides the spiral screen is selected from row's grass thresher, fight including frame, cylinder, screen cloth, seed grain recovery unit and millet, the millet is fought and is fixed in the frame, cylinder and screen cloth are all installed in the millet fill, the screen cloth is located the below of cylinder, be equipped with parallel feeding threshing warehouse in the millet fill and select the grass storehouse, the cylinder link up feeding threshing warehouse and selects the grass storehouse, it is equipped with seed grain recovery unit and seed grain separation vitex in the grass storehouse to select.

In some embodiments, it is equipped with apron and vertical guide baffle to select the grass storehouse, the one side of selecting the grass storehouse is equipped with row grass mouth, vertical guide baffle is fixed in one side of apron, apron and vertical guide baffle are fixed in millet fill and screen cloth, vertical guide baffle is located feeding threshing warehouse and selects between the grass storehouse, vertical guide baffle encircles the most position of cylinder, vertical guide baffle does not encircle the cylinder position and is located the cylinder below and leans on one side of row grass mouth, vertical guide baffle is located the downside part of cylinder and inclines to feeding threshing warehouse, the one end of vertical guide baffle and the staggered formation row grass storehouse feed inlet of other end vertical position.

In some embodiments, seed grain recovery unit sets up in the top of arranging the grass mouthful, seed grain recovery unit includes that seed grain retrieves baffle and row's grass guide vitex, the one end of seed grain retrieval baffle and the apron fixed connection who selects the grass storehouse, seed grain retrieval baffle is located the top of arranging the grass mouthful, seed grain retrieval baffle is less than 90 degrees with the contained angle that row's grass lid is located cylinder one side, row's grass guide vitex and the apron fixed connection who selects the grass storehouse, row's grass guide vitex sets up to many side by side.

In some embodiments, the grass discharging and guiding thorns are sheet-shaped or strip-shaped, and the arrangement direction of the grass discharging and guiding thorns is consistent with the discharging direction of the grass discharging port.

In some embodiments, the grain separation thorns in the screened grass cabin are distributed on the inner wall of the screened grass cabin, and the grain separation thorns are axially parallel to the threshing cylinder and are arranged in a plurality of strips.

The utility model has the advantages that: through setting up the guide baffle with the cooperation in play grass storehouse, form the feed inlet in play grass storehouse between play grass storehouse and guide baffle. The guide baffle is spiral extension in the below of cylinder, can follow the guide baffle propelling movement after threshing to a grass storehouse at cylinder rotation in-process, can discharge the straw after threshing fast, prevent to thresh back corn and straw discharge organism together and cause the corn loss, through set up seed grain recovery unit above arranging grass mouthful, when smooth and easy discharge straw, keep off the corn after the screening back in the storehouse, prevent that corn from being discharged along with the straw together. The utility model discloses a spiral screen is selected from row's grass thresher threshing effect good, play grass conveying efficiency high, prevent blockking up, and structural design is simple reasonable, convenient to use.

Drawings

FIG. 1 is a schematic structural view of a spiral screen of a grass discharge thresher according to an embodiment of the present invention;

FIG. 2 is a schematic top view of the spiral screen of the grass thresher of FIG. 1;

FIG. 3 is a schematic view of the installation structure of the spiral screen of the vertical material guiding partition plate of the thresher selected from straw rows shown in FIG. 1;

FIG. 4 is a schematic view of the spiral screen of the grain recovery device of the grass discharge thresher of FIG. 1;

fig. 5 is a left side view of the grain recovering device shown in fig. 4.

Detailed Description

The following describes the present invention in further detail with reference to the accompanying drawings.

Fig. 1 to 5 schematically show that a spiral screen according to an embodiment of the present invention is selected from a grass thresher.

Referring to fig. 1-5, the spiral screen is selected from a straw discharge thresher comprising a frame 1, a roller 2, a screen 3, a grain recovery device 5, a grain hopper 6, a grain unloading device and a power device. The grain hopper 6 is fixed on the frame 1, the roller 2 and the screen 3 are both arranged in the grain hopper 6, and a grain bin is arranged below the screen 3. The grain hopper 6 is internally provided with a feeding threshing bin 11 and a screening grass bin 12 which are arranged in parallel, and the screening grass bin 12 is positioned at the left side or the right side of the threshing bin 11. The roller 2 is communicated with the feeding threshing bin 11 and the screening grass bin 12, threshing teeth 21 are arranged on the roller 2, and the roller 2 can be driven by a power device to rotate. The grain unloading device is connected with the granary and can send out grains in the granary.

The screened grass cabin is provided with a cover plate 41 and a vertical material guide clapboard 42, and one side of the screened grass cabin 12 is provided with a grass discharge port 13. The cover plate 41 is fixed to the frame 1 and closes the upper portion of the screened grass hopper 12. The vertical material guiding partition plate 42 is fixed on one side of the cover plate 41, and the vertical material guiding partition plate 42 surrounds most positions of the drum 2. The vertical material guiding partition plate 42 is not positioned at one side below the roller 2 close to the grass discharging port 13 around the roller 2, the lower side part of the vertical material guiding partition plate 42 positioned at the roller 2 inclines towards the feeding threshing bin 11, and one end of the vertical material guiding partition plate 42 is staggered with the vertical position of the other end to form a grass discharging bin feeding port 8.

The grain recovery device 5 is arranged above the grass discharge port 13. The grain recovery device 5 comprises a grain recovery baffle 52 and a grass discharge and guide thorn 53. One end of the seed grain recovery baffle plate 52 is fixedly connected with the cover plate 41 which is used for screening the grass cabin, the seed grain recovery baffle plate 52 is positioned above the grass discharge port 13, the included angle between the seed grain recovery baffle plate 52 and the grass discharge cover positioned on one side of the roller is smaller than 90 degrees, the grass discharge guide chases 53 are fixedly connected with the cover plate 41 which is used for screening the grass cabin, and the grass discharge guide chases 53 are arranged in parallel to form a plurality of strips. The grass discharging and guiding chaste tree 53 is in a sheet shape or a strip shape, and the arrangement direction of the grass discharging and guiding chaste tree 53 is consistent with the discharging direction of the grass discharging opening 13.

The grain separation brambles 7 in the screened grass bin are distributed on the inner wall of the screened grass bin and the inner side of the cover plate 41 of the separation cleaning device 4, and the grain separation brambles 7 are axially parallel to the threshing cylinder and are arranged into a plurality of grains.

When the threshing machine is used, the motor drives the roller 2 to rotate, the straws with grains collide with the threshing teeth 23 on the roller 2 in the feeding threshing bin 11, the grains and the straws partially fall off from the straws, and most of the grains pass through the screen 3 and fall into the grain bin. Straw and a small amount of grains enter the grass screening bin 12 from the feed inlet 8 of the grass discharging bin to collide with the grain separation brambles 7, so that a small amount of grains remained on the straw are separated from the straw. The grain passes through the screen 3 and falls into the granary, the straw is discharged out of the straw discharging port 13 along the straw discharging and guiding device, and the grain recovering baffle plate 52 of the grain recovering device 5 blocks the jumping grain and rebounds the jumping grain to the granary. It has the advantages of quick grass discharge, clean threshing and good use effect.

Finally, it should be noted that: the above-mentioned embodiments are only used for illustrating the technical solution of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (5)

1. The spiral screen is selected from a grass discharge thresher and is characterized by comprising a rack (1), a roller (2), a screen (3), a grain recovery device (5) and a grain hopper (6), wherein the grain hopper (6) is fixed on the rack (1), the roller (2) and the screen (3) are both installed in the grain hopper (6), the screen (3) is located below the roller (2), a parallel feeding threshing bin (11) and a screening grass bin (12) are arranged in the grain hopper (6), the roller (2) penetrates through the feeding threshing bin (11) and the screening grass bin (12), and the screening grass bin (12) is internally provided with the grain recovery device (5) and a grain separation thorn (7).

2. The spiral screen is selected from a grass discharge thresher according to claim 1, characterized in that the screened grass cabin (12) is provided with a cover plate (41) and a vertical guide baffle plate (42), the vertical guide baffle plate (42) is fixed on one side of the cover plate (41), one side of the screened grass cabin (12) is provided with a grass discharge port (13), the cover plate (41) and the vertical guide baffle plate (42) are fixed on the grain hopper (6) and the screen (3), the vertical guide baffle plate (42) is positioned between the feeding threshing cabin (11) and the screened grass cabin (12), the vertical guide baffle plate (42) surrounds most of the roller (2), the position of the vertical guide baffle plate (42) which does not surround the roller (2) is positioned on one side close to the grass discharge port (13) below the roller (2), the lower side part of the vertical guide baffle plate (42) positioned on the roller (2) is inclined towards the feeding threshing cabin (11), one end of the vertical material guide partition plate (42) and the other end of the vertical material guide partition plate are vertically staggered to form a feed inlet (8) of the grass discharging bin.

3. The spiral screen is selected from a grass discharge thresher according to claim 2, and is characterized in that the grain recovery device (5) is arranged above the grass discharge port (13), the grain recovery device (5) comprises a grain recovery baffle (52) and a grass discharge guide chaste tree (53), one end of the grain recovery baffle (52) is fixedly connected with a cover plate (41) of the grass discharge bin, the grain recovery baffle (52) is arranged above the grass discharge port (13), an included angle between the grain recovery baffle (52) and the grass discharge cover on one side of the roller is smaller than 90 degrees, the grass discharge guide chaste tree (53) is fixedly connected with the cover plate (41) of the grass discharge bin, and the grass discharge guide chaste tree (53) is arranged in a plurality of parallel.

4. The spiral screen is selected from a grass discharge thresher according to claim 3, and is characterized in that the grass discharge and guide thorn (53) is sheet-shaped or strip-shaped, and the arrangement direction of the grass discharge and guide thorn (53) is consistent with the discharge direction of the grass discharge opening (13).

5. The spiral screen grass discharging and threshing machine as claimed in claim 1, wherein the grain separation brambles (7) in the screened grass bin (12) are distributed on the inner wall of the screened grass bin (12), and the grain separation brambles (7) are axially parallel to the threshing cylinder and are arranged in a plurality of strips.

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