Drum-type seed screening device

Abstract

The utility model discloses a drum-type seed screening device, which relates to the field of seed screening, and comprises a box body and a multi-section screening drum, a front-section drum and a rear-section drum are fixed on two side box walls of the box body in an inserting manner, two ends of the multi-section screening drum are respectively and rotatably mounted on the front-section drum and the rear-section drum through a front-end bearing and a rear-end bearing, and the front-section drum and the rear-section drum are fixed on the front-section drum and the rear-section drum. A motor is fixedly installed on the inner side wall of the box body through a motor frame, the motor is connected with a long rotating shaft, the long rotating shaft is fixedly sleeved with a driving gear, the driving gear is in meshed connection with a barrel gear, the barrel gear is fixedly arranged on the multiple sections of screening barrels in a sleeving mode, and a swing seat is fixedly installed at the top of the inner side of the box body; a swing rod is rotatably mounted at the bottom of the swing seat, and a beating ball is fixedly mounted at the bottom end of the swing rod. The seed screening device has the beneficial effects that rapid screening of seeds is achieved through the multiple sections of rollers, meanwhile, blockages stuffed into screening holes are vibrated off in real time through beating, blockage is prevented, and disassembly and cleaning are not needed.

Description

Technical Field

[0001] The utility model relates to the field of seed screening, in particular to a drum type seed screening device. Background Art

[0002] The quality of seeds is directly related to the growth and yield of crops. Therefore, in the early stage of seed planting, seeds need to be screened to select high-quality seeds with full grains. Existing equipment for screening granular seeds mostly uses a screen or a rotating screen cylinder. The screen cylinder is generally arranged inside the box. During the screening process, some particles or debris will block the screen holes. The blockage accumulates over time, affecting the screening efficiency, and needs to be disassembled for cleaning. Utility Model Content

[0003] The purpose of the utility model is to provide a drum type seed screening device in order to solve the above problems.

[0004] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0005] A drum-type seed screening device comprises a box body and a multi-stage screening drum, a front-stage drum and a rear-stage drum are inserted and fixed on the box walls on both sides of the box body, two ends of the multi-stage screening drum are rotatably mounted on the front-stage drum and the rear-stage drum through the front-end bearing and the rear-end bearing respectively, a motor is fixedly mounted on the inner wall of the box body through a motor frame, the motor is connected to a long rotating shaft, a driving gear is sleeved and fixed on the long rotating shaft, the driving gear is meshed and connected with a drum gear, the drum gear is sleeved and fixed to the multi-stage screening drum, a swing seat is fixedly mounted on the inner top of the box body, a swing rod is rotatably mounted on the bottom of the swing seat, a knocking ball is fixedly mounted on the bottom end of the swing rod, and a top pressure plate is fixed on the long rotating shaft.

[0006] Furthermore, a seed entry bucket is fixedly installed on the front end of the front section tube, and a terminal bucket is fixedly installed on the terminal end of the rear section tube.

[0007] Furthermore, a partition is vertically arranged in the box body, a cylinder through hole and an axis through hole are opened on the partition, the multi-section screening cylinder is inserted in the cylinder through hole, and the long rotating shaft is rotatably installed in the axis through hole.

[0008] Furthermore, a plurality of hopper gathering holes are provided on the bottom wall of the box body, and a bottom end cavity gathering hopper is fixedly installed at the bottom of the hopper gathering holes.

[0009] Furthermore, a support frame is installed on the bottom support of the box.

[0010] The beneficial effect is that the drum-type seed screening device described in the utility model realizes rapid screening of seeds through a multi-stage drum. At the same time, it can shake off the blockages stuck in the sieve holes in real time by knocking, thereby preventing blockage without disassembly and cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of a drum-type seed screening device described in the utility model.

[0012] The following are the descriptions of the reference numerals:

[0013] 1. Box body; 2. Front end bearing; 3. Rear end bearing; 4. Multi-stage screening cylinder; 5. Front section cylinder; 6. Rear section cylinder; 7. Seed entry bucket; 8. Cylinder gear; 9. Support frame; 10. Partition plate; 11. End bucket; 12. Swing rod; 13. Swing seat; 14. Beating ball; 15. Top pressure plate; 16. Driving gear; 17. Motor; 18. Bottom end cavity gathering bucket. DETAILED DESCRIPTION

[0014] The utility model is further described below in conjunction with the accompanying drawings:

[0015] like Figure 1 As shown, a drum-type seed screening device is composed of a box body 1 and a multi-stage screening drum 4;

[0016] A front section cylinder 5 and a rear section cylinder 6 are inserted and fixed on the box walls on both sides of the box body 1. The front section cylinder 5 and the rear section cylinder 6 are both inclinedly arranged. The two ends of the multi-stage screening cylinder 4 are rotatably mounted on the front section cylinder 5 and the rear section cylinder 6 through the front end bearing 2 and the rear end bearing 3 respectively.

[0017] A motor 17 is fixedly installed on the inner wall of the box body 1 through a motor frame, and the motor 17 is connected to a long rotating shaft, and a driving gear 16 is sleeved and fixed on the long rotating shaft. The driving gear 16 is meshed and connected with a drum gear 8, and the drum gear 8 is sleeved and fixed on the multi-stage screening drum 4. Through the linkage of the motor 17, the driving gear 16, and the drum gear 8, the multi-stage screening drum 4 is driven to rotate, and the seeds are screened in multiple stages;

[0018] A swing seat 13 is fixedly installed on the inner top of the box body 1, and a swing rod 12 is rotatably installed on the bottom of the swing seat 13. A knocking ball 14 is fixedly installed on the bottom end of the swing rod 12. The knocking ball 14 is placed on the outer cylinder surface of the multi-stage screening drum 4, and the multi-stage screening drum is knocked when it rotates. A top pressure plate 15 is fixedly installed on the long rotating shaft, and the number of the top pressure plates 15 is the same as the number of the swing rods 12. When the top pressure plates 15 rotate with the long rotating shaft, the swing rods 12 are moved to knock the multi-stage screening drum 4.

[0019] In this embodiment, a seed entry bucket 7 is fixedly installed on the front end of the front tube 5 , and a terminal bucket 11 is fixedly installed on the terminal end of the rear tube 6 .

[0020] In this embodiment, a partition 10 is vertically arranged in the box body 1, and a cylinder through hole and an axis through hole are opened on the partition 10. The multi-stage screening cylinder 4 is inserted in the cylinder through hole, and the long rotating shaft is rotatably installed in the axis through hole.

[0021] In this embodiment, a plurality of gathering holes are provided on the bottom wall of the box body 1, the number of which matches the number of cavities separated by the partition 10 in the box body 1, and a bottom cavity gathering hopper 18 is fixedly installed at the bottom of the gathering holes.

[0022] In this embodiment, a support frame 9 is installed on the bottom support of the box body 1 .

[0023] In the above structure, the seeds to be screened enter the front section cylinder 5 through the seed entry bucket 7. Since the front section cylinder 5 and the rear section cylinder 6 are arranged obliquely, the seeds roll into the multi-section screening cylinder 4. The multi-section screening cylinder in this embodiment is composed of two sections of filter cylinders with different apertures. The aperture of the front section is small, and the aperture of the rear section is large. Small particles of seeds and dust fall in the front section, and normal seeds fall in the rear section. The remaining debris is discharged through the terminal bucket 11.

[0024] During the rotation, the knocking ball 14 continuously knocks the multi-stage screening cylinder 4 to shake off the obstructions in the sieve holes to prevent clogging.

[0025] Those skilled in the art should understand that the present invention is not limited by the above-mentioned embodiments. The above-mentioned embodiments and the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements shall fall within the scope of the present invention to be protected.

Claims

1. A drum type seed screening device, characterized in that: It includes a box body and a multi-stage screening cylinder, a front-stage cylinder and a rear-stage cylinder are inserted and fixed on the box walls on both sides of the box body, two ends of the multi-stage screening cylinder are rotatably mounted on the front-stage cylinder and the rear-stage cylinder through the front-end bearing and the rear-end bearing respectively, a motor is fixedly mounted on the inner wall of the box body through a motor frame, the motor is connected to a long rotating shaft, a driving gear is sleeved and fixed on the long rotating shaft, the driving gear is meshed and connected with a cylinder gear, the cylinder gear is sleeved and fixed to the multi-stage screening cylinder, a swing seat is fixedly mounted on the inner top of the box body, a swing rod is rotatably mounted on the bottom of the swing seat, a knocking ball is fixedly mounted on the bottom end of the swing rod, and a top pressure plate is fixed on the long rotating shaft.

2. A drum-type seed screening device according to claim 1, characterized in that: A seed entry bucket is fixedly installed on the front end tube opening of the front section tube, and a terminal bucket is fixedly installed on the terminal tube opening of the rear section tube.

3. A drum-type seed screening device according to claim 1, characterized in that: A partition is vertically arranged in the box body, a cylinder through hole and an axis through hole are opened on the partition, the multi-section screening cylinder is inserted in the cylinder through hole, and the long rotating shaft is rotatably installed in the axis through hole.

4. A drum-type seed screening device according to claim 1, characterized in that: A plurality of bucket gathering holes are provided on the bottom wall of the box body, and a bottom end cavity gathering bucket is fixedly installed at the bottom of the bucket gathering hole.

5. The drum-type seed screening device according to claim 1, characterized in that: A support frame is installed on the bottom support of the box body.

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