Screening device for rape combine harvester

Abstract

The screening device for the rape combine harvester comprises a screening piece, a feeding piece is fixedly installed on the upper surface of the screening piece, a discharging plate is installed at the upper end of the screening piece in a sliding mode, and connecting plates are fixedly installed at the two ends of the lower surface of the discharging plate. A blowing part is fixedly installed on one side of the upper end of the screening part, a plurality of sets of transmission gears are rotationally installed on the blowing part, driving fans are fixedly installed at the ends, close to the discharging plate, of the transmission gears, and the transmission gears are sleeved with transmission chains; a transmission assembly is arranged between the transmission gear in the middle and the connecting plate, and the transmission assembly can drive the transmission gear to rotate continuously and drive the discharging plate to move up and down continuously at the same time. And the possibility that branches, leaves and the like are accumulated in the screening equipment is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery and equipment, in particular to a screening device for a rapeseed combine harvester. Background Art

[0002] Rapeseed combine harvesters generally use fans to blow branches and leaves mixed in the pellets to the outside of the screening equipment, thereby exporting the pellets.

[0003] The branches and leaves that have accumulated at the bottom of the screen plate in the rapeseed screening equipment are difficult to be discharged outside the screening equipment under the action of the fan. After a long time, the branches and leaves accumulate inside the screening equipment, affecting the particle output of the screening equipment. Manual cleaning is required, and the operation is cumbersome.

[0004] Based on this, the utility model designs a screening device for a rapeseed combine harvester to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a screening device for a rapeseed combine harvester, which can lift up the accumulated branches and leaves through continuous vibration of the screen plate and then guide them out under the action of a fan, thereby avoiding the possibility of branches and leaves being accumulated in the screening device.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A screening device for a rapeseed combine harvester comprises a screening piece, a feeding piece is fixedly mounted on the upper surface of the screening piece, a blanking plate is slidably mounted on the upper end of the screening piece, connecting plates are fixedly mounted on both ends of the lower surface of the blanking plate, a limiting ring is fixedly mounted on the lower end of the screening piece corresponding to the position of the connecting plate, the lower end of the connecting plate is slidably connected to the limiting ring, a blowing piece is fixedly mounted on one side of the upper end of the screening piece, multiple groups of transmission gears are rotatably mounted on the blowing piece, a driving fan is fixedly mounted on the end of the transmission gear close to the blanking plate, a transmission chain is connected to the outer shell of the transmission gear, and a transmission assembly is arranged between the transmission gear and the connecting plate in the middle position, and the transmission assembly can drive the blanking plate to move continuously up and down while driving the transmission gear to rotate continuously.

[0008] Preferably, the transmission assembly includes a lower mounting plate, which is fixedly mounted on one side of the screening element, one end of the lower mounting plate is rotatably mounted with a lower gear at one end of the screening element, the lower end of the connecting plate is rotatably mounted with an upper connecting piece, the lower end of the upper connecting piece is rotatably mounted with a lower connecting piece, and a connecting rod is fixedly mounted between the lower ends of the lower connecting pieces.

[0009] Preferably, the connecting rod is rotatably installed in the screening element, an upper gear is fixedly installed in the middle position of the screening element, the upper gear is engaged with the lower gear, and an outer transmission shaft is rotatably installed at one end of the lower mounting plate outside the screening element, a lower transmission wheel is fixedly installed on the outer transmission shaft and the lower gear, and a lower transmission element is connected to the outer outer shell of the lower transmission wheel.

[0010] Preferably, a driven bevel gear is fixedly mounted on one end of the outer transmission shaft, a side connecting shaft is rotatably mounted on one side of the screening element, a driving bevel gear is fixedly mounted on the side connecting shaft, and the driving bevel gear is meshed with the driven bevel gear.

[0011] Preferably, a side transmission wheel is fixedly mounted on the side connecting shaft and the middle transmission gear, a side transmission member is connected to the outer shell of the side transmission wheel, and a plurality of discharge troughs are provided on the side of the screening member away from the blowing member.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] In the utility model, the fan is driven to rotate continuously, and the branches and leaves in the granular material introduced into the screening part through the feeding part are discharged from the discharge chute. At the same time, the discharge plate continuously vibrates up and down, thereby lifting the branches and leaves accumulated on the screen plate, making it convenient to discharge the accumulated branches and leaves into the discharge chute, increasing the cleanliness of the granular material screening, making the granular material cleaning more thorough, and avoiding the trouble of manual cleaning of the screen plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0015] Figure 1 This is a schematic diagram of the structure of the utility model from the front side perspective;

[0016] Figure 2 This is a schematic diagram of the structure of the utility model from a rear side perspective;

[0017] Figure 3 For this utility model Figure 2 A partial schematic diagram of the structure at point A;

[0018] Figure 4 This is a structural sectional view of the utility model;

[0019] Figure 5 For this utility model Figure 4 A partial schematic diagram of the structure at B in the middle;

[0020] Figure 6 For this utility model Figure 4 Partial schematic diagram of the structure at point C in the middle.

[0021] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0022] 1. Feeding part; 2. Screening part; 3. Discharging chute; 4. Unloading plate; 5. Blowing part; 6. Side transmission part; 7. Lower mounting plate; 8. Lower transmission part; 9. Outer transmission shaft; 10. Driven bevel gear; 11. Side connecting shaft; 12. Driving bevel gear; 13. Side transmission wheel; 14. Transmission gear; 15. Transmission chain; 16. Driving fan; 17. Connecting plate; 18. Lower connecting part; 19. Lower gear; 20. Upper gear; 21. Connecting rod; 22. Lower transmission wheel; 23. Upper connecting part; 24. Limiting ring. DETAILED DESCRIPTION

[0023] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figures 1-6 , the utility model provides a technical solution:

[0025] A screening device for a rapeseed combine harvester comprises a screening element 2, a feeding element 1 being fixedly mounted on the upper surface of the screening element 2, a blanking plate 4 being slidably mounted on the upper end of the screening element 2, connecting plates 17 being fixedly mounted on both ends of the lower surface of the blanking plate 4, a limiting ring 24 being fixedly mounted at the position of the lower end of the screening element 2 corresponding to the connecting plate 17, the lower end of the connecting plate 17 being slidably connected in the limiting ring 24, a blowing element 5 being fixedly mounted on one side of the upper end of the screening element 2, a plurality of sets of transmission gears 14 being rotatably mounted on the blowing element 5, a driving fan 16 being fixedly mounted on the end of the transmission gear 14 close to the blanking plate 4, a transmission chain 15 being connected to the outer outer surface of the transmission gear 14, a transmission assembly being arranged between the intermediate position transmission gear 14 and the connecting plate 17, the transmission assembly being able to drive the blanking plate 4 to continuously move up and down while driving the transmission gear 14 to continuously rotate.

[0026] Among them, the transmission assembly includes a lower mounting plate 7, which is fixedly mounted on one side of the screening element 2. One end of the lower mounting plate 7 is at one end of the screening element 2 and is rotatably mounted with a lower gear 19. The lower end of the connecting plate 17 is rotatably mounted with an upper connecting member 23, and the lower end of the upper connecting member 23 is rotatably mounted with a lower connecting member 18. A connecting rod 21 is fixedly mounted between the lower ends of the lower connecting members 18.

[0027] Among them, the connecting rod 21 is rotatably installed in the screening element 2, and the upper gear 20 is fixedly installed in the middle position of the screening element 2. The upper gear 20 is engaged with the lower gear 19. The outer transmission shaft 9 is rotatably installed at one end of the lower mounting plate 7 outside the screening element 2. The lower transmission wheel 22 is fixedly installed on the outer transmission shaft 9 and the lower gear 19, and the lower transmission member 8 is connected to the outer outer cover of the lower transmission wheel 22.

[0028] Among them, a driven bevel gear 10 is fixedly installed on one end of the outer transmission shaft 9, and a side connecting shaft 11 is rotatably installed on one side of the screening element 2. A driving bevel gear 12 is fixedly installed on the side connecting shaft 11, and the driving bevel gear 12 is meshed with the driven bevel gear 10.

[0029] The side connecting shaft 11 and the intermediate transmission gear 14 are both fixedly mounted with a side transmission wheel 13 , the side transmission member 6 is connected to the outer shell of the side transmission wheel 13 , and a plurality of discharge troughs 3 are provided on the side of the screening member 2 away from the blowing member 5 .

[0030] In the present invention, the driving fan 16 is continuously rotated, and the branches and leaves in the granular material introduced into the screening element 2 through the feeding element 1 are discharged from the discharge chute 3 (the motor drives the middle transmission gear 14 to rotate, and the transmission gear 14 rotates through the transmission chain 15 to drive multiple groups of driving fans 16 to rotate, and the driving fans 16 rotate to blow the branches and leaves from the blowing element, so that the branches and leaves are discharged from the discharge chute 3). At the same time of discharge, the blanking plate 4 continues to vibrate up and down (the rotation of the middle gear drives the side connecting shaft 11 to rotate through the side transmission wheel 13 and the side transmission element 6, and the side connecting shaft 11 rotates the driving bevel gear 12, and the driving bevel gear 12 drives the outer transmission shaft 9 to rotate through the driven bevel gear 10, and the outer transmission shaft 9 rotates). The driving shaft 9 rotates through the lower transmission wheel 22 and the lower transmission member 8 to drive the lower gear 19 to rotate. The rotation of the lower gear 19 drives the upper gear 20 meshing with it to rotate. The upper gear 20 rotates to drive the connecting rod 21 to rotate. The rotation of the connecting rod 21 drives the lower connecting member 18 to rotate. The lower connecting member 18 rotates and pulls the upper connecting member 23. The upper connecting member 23 pulls the connecting plate 17 to slide in the limit ring 24, thereby driving the blanking plate 4 to slide back and forth up and down), thereby lifting the branches and leaves accumulated on the screen plate, making it convenient to guide the accumulated branches and leaves into the discharge trough 3, increasing the cleanliness of the particle screening, making the particle cleaning more thorough, and avoiding the trouble of manual cleaning of the screen plate.

Claims

1. A screening device for a rapeseed combine harvester, comprising a screening element (2), characterized in that: A feeding member (1) is fixedly mounted on the upper surface of the screening member (2), a blanking plate (4) is slidably mounted on the upper end of the screening member (2), and connecting plates (17) are fixedly mounted on both ends of the lower surface of the blanking plate (4). A limiting ring (24) is fixedly mounted on the lower end of the screening member (2) corresponding to the position of the connecting plate (17), and the lower end of the connecting plate (17) is slidably connected to the limiting ring (24). A blowing member (5) is fixedly mounted on one side of the upper end of the screening member (2), and multiple groups of transmission gears (14) are rotatably mounted on the blowing member (5). A driving fan (16) is fixedly mounted on one end of the transmission gear (14) close to the blanking plate (4), and a transmission chain (15) is connected to the outer shell of the transmission gear (14). A transmission assembly is provided between the transmission gear (14) and the connecting plate (17) in the middle position, and the transmission assembly can drive the blanking plate (4) to move up and down continuously while driving the transmission gear (14) to rotate continuously.

2. The screening device for a rapeseed combine harvester according to claim 1, characterized in that: The transmission assembly comprises a lower mounting plate (7), the lower mounting plate (7) being fixedly mounted on one side of the screening element (2), one end of the lower mounting plate (7) being rotatably mounted on one end of the screening element (2), an upper connecting member (23) being rotatably mounted on the lower end of the connecting plate (17), a lower connecting member (18) being rotatably mounted on the lower end of the upper connecting member (23), and a connecting rod (21) being fixedly mounted between the lower ends of the lower connecting members (18).

3. The screening device for a rapeseed combine harvester according to claim 2, characterized in that: The connecting rod (21) is rotatably mounted in the screening element (2); an upper gear (20) is fixedly mounted in the middle position of the screening element (2); the upper gear (20) is meshed with the lower gear (19); an outer transmission shaft (9) is rotatably mounted on one end of the lower mounting plate (7) outside the screening element (2); a lower transmission wheel (22) is fixedly mounted on both the outer transmission shaft (9) and the lower gear (19); and a lower transmission element (8) is connected to the outer surface of the lower transmission wheel (22).

4. The screening device for a rapeseed combine harvester according to claim 3, characterized in that: A driven bevel gear (10) is fixedly mounted on one end of the outer transmission shaft (9), a side connecting shaft (11) is rotatably mounted on one side of the screening element (2), a driving bevel gear (12) is fixedly mounted on the side connecting shaft (11), and the driving bevel gear (12) is meshed with the driven bevel gear (10).

5. The screening device for a rapeseed combine harvester according to claim 4, characterized in that: A side transmission wheel (13) is fixedly mounted on the side connecting shaft (11) and the middle transmission gear (14), and a side transmission member (6) is connected to the outer surface of the side transmission wheel (13). A plurality of discharge troughs (3) are provided on the side of the screening member (2) away from the blowing member (5).

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