Axial flow cylinder with multi-axis disturbance function

Abstract

Axial flow threshing cylinder with multi-axis disturbance function belongs to agricultural machinery; helical conical feeding body, sun gear and sun gear, driving pulley are respectively fixed on left side and right side of cylinder center main shaft, inner ring gear is arranged on outer side of sun gear, planetary gear is respectively fixed on both ends of planetary shaft, planetary gear is arranged between inner ring gear and sun gear and is engaged with each other, cylinder center main shaft is rotatably inserted into fixedly arranged positioning disc, right end of planetary shaft is rotatably inserted into positioning disc, driving ring is coaxially fixed on inner ring gear, two supporting rings are circumferentially rotatably sleeved on outer part of planetary shaft, main threshing tooth seat with main threshing tooth is fixed between driving ring and supporting ring, three discs are fixed on planetary shaft, six disturbance threshing tooth seats with disturbance threshing tooth are fixed on three discs; cylinder grain entrainment loss is small, grain recovery rate is high, and the structure is unique and reasonable.

Description

Technical Field

[0001] This invention belongs to agricultural machinery and mainly relates to an axial flow threshing drum. Background Technology

[0002] Axial-flow threshing drums are a type of threshing assembly component commonly used in grain combine harvesters. Due to their long working stroke, they provide ample time for threshing and separating grains, generally achieving satisfactory grain separation results. However, years of practical application have revealed that, because currently used axial-flow threshing drums employ a single-shaft structure, a large amount of crop stalks, grain ears, and grains easily become entangled on the drum shaft after the crop stalks enter the threshing chamber, forming a thick stalk layer. This can even cause the stalks to twist into braids, leading to drum blockage, a sharp increase in power consumption, and, especially, a significant amount of unseparated ears and grains trapped within the thick stalk layer and braided stalks, resulting in grain loss and a decreased grain recovery rate. Summary of the Invention

[0003] The purpose of this invention is to address the problems existing in the prior art and, in combination with the actual needs of grain threshing operations, to develop and design an axial flow threshing drum with multi-axis disturbance function, so as to reduce the loss of grain ears entrained in the stalk layer and improve the grain ear recovery rate during threshing operations.

[0004] The objective of this invention is achieved as follows: A spiral conical feeder and a drive pulley are fixedly mounted on the left and right ends of the central spindle of the drum, respectively. Sun gears are fixedly mounted on the left and right sides of the central spindle, at the locations between the spiral conical feeder and the drive pulley. Internal gear rings are coaxially mounted on the outer sides of the sun gears on the left and right sides. Planetary gears are fixedly mounted on the left and right ends of five planetary shafts. The five planetary gears on the left end are evenly distributed circumferentially and installed between the internal gear ring and the sun gear on the left side, meshing with each other. The five planetary gears on the right end are evenly distributed circumferentially and installed between the internal gear ring and the sun gear on the right side, meshing with each other. The central spindle of the drum is rotatably inserted into a fixedly configured positioning plate, located on the right side. Between the internal gear ring and the drive pulley, the right ends of the five planetary shafts are axially and radially positioned and rotatably inserted into the positioning disc. Drive rings are coaxially fixed on the inner sides of the internal gear rings on the left and right sides, respectively. Two support rings are radially and axially positioned and rotatably fitted on the outer sides of the five planetary shafts, between the drive rings on the left and right sides. Main threshing tooth seats with main threshing teeth are axially supported and fixed on the outer sides of the drive rings and support rings on the left and right sides, respectively. Three discs are axially evenly fixed on the five planetary shafts between the two support rings. Six disturbance threshing tooth seats with disturbance threshing teeth are circumferentially evenly inserted and fixed on the edges of the three discs on the coaxial side, thus forming an axial flow threshing drum with multi-axis disturbance function.

[0005] This invention creates a novel and unique axial flow threshing drum with a planetary gear system that drives multiple disturbance threshing teeth with disturbance function to assist the main threshing teeth in working together. While reducing the thickness of the stalk layer and performing shaking separation, it also avoids the stalks being twisted into braids. It has the characteristics of novel, unique and reasonable structure, low power consumption, few operation failures, high operation efficiency, low grain entrainment loss and high grain recovery rate. Attached Figure Description

[0006] Figure 1 This is a three-dimensional schematic diagram of the overall structure of an axial flow threshing drum with multi-axis disturbance function;

[0007] Figure 2 This is a two-dimensional schematic diagram of the overall structure of an axial flow threshing drum with multi-axis disturbance function;

[0008] Figure 3 This is an exploded view of the overall structure of an axial flow threshing drum with multi-axis disturbance function.

[0009] Part number description in the image:

[0010] 1. Spiral conical feeder; 2. Internal gear ring; 3. Drive ring; 4. Main nail removal tooth seat; 5. Main nail removal tooth; 6. Disturbing threshing nail tooth seat; 7. Disturbing threshing nail tooth; 8. Disc; 9. Drum center spindle; 10. Planetary shaft; 11. Planetary gear; 12. Sun gear; 13. Drive pulley; 14. Support ring; 15. Positioning disc. Detailed Implementation

[0011] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. An axial flow threshing drum with multi-axis disturbance function includes a central main shaft 9. A spiral conical feeder 1 and a drive pulley 13 are fixedly mounted on the left and right ends of the central main shaft 9, respectively. Sun gears 12 are fixedly mounted on the left and right sides of the central main shaft 9, located between the spiral conical feeder 1 and the drive pulley 13. Internal gear rings 2 are coaxially mounted on the outer sides of the sun gears 12 on the left and right sides, respectively. Planetary gears 11 are fixedly mounted on the left and right ends of five planetary shafts 10. The five planetary gears 11 at the left end are evenly distributed circumferentially and installed between the internal gear rings 2 and the sun gears 12 on the left side, and mesh with each other. The five planetary gears 11 at the right end are evenly distributed circumferentially and installed between the internal gear rings 2 and the sun gears 12 on the right side, and mesh with each other. The central main shaft 9 is rotatably inserted into a fixed... On the configured positioning disk 15, the positioning disk 15 is located between the inner gear ring 2 and the drive pulley 13 on the right side. The right ends of the five planetary shafts 10 are axially and radially positioned and rotatably inserted into the positioning disk 15. Drive rings 3 are coaxially fixed on the inner sides of the inner gear rings 2 on the left and right sides respectively. On the outer side of the five planetary shafts 10, between the drive rings 3 on the left and right sides, two support rings 14 are radially and axially positioned and rotatably fitted. On the outer circumference of the drive rings 3 and support rings 14 on the left and right sides respectively, the main threshing tooth seats 4 with main threshing teeth 5 are axially supported and fixed. Three discs 8 are evenly and axially fixed on the five planetary shafts 10 located between the two support rings 14 respectively. Six disturbance threshing tooth seats 6 with disturbance threshing teeth 7 are evenly and sequentially inserted and fixed on the edges of the three coaxial discs 8 in the circumferential direction.

[0012] During operation, the axial flow threshing drum is mounted as a whole on the grain combine harvester, with the positioning plate 15 fixed in place. The external rotational power is transmitted sequentially through the drive pulley 13 and the central main shaft 9 of the drum, simultaneously driving the spiral conical feed body 1 and the sun gears 12 on the left and right sides to rotate. The sun gears 12 drive the planetary gears 11 to rotate. Under the control of the positioning plate 15, the five planetary shafts 10 can only rotate with the planetary gears 11 and cannot revolve around the central main shaft 9 of the drum. The rotating planetary shafts 10 drive the six disturbance threshing nail seat 6 equipped with disturbance threshing nail teeth 7 to rotate as a whole through the three discs 8. Simultaneously, the rotating planetary gears 11 drive the internal gear rings 2 on the left and right sides to rotate, which in turn drive the main nail-removing tooth seat 4 equipped with the main nail-removing teeth 5 on the left and right sides to rotate through the drive rings 3 and support rings 14 on the left and right sides, respectively. The stalks with ears of grain fed from the spiral conical feed body 1 are subjected to the first threshing, disturbance threshing, and second threshing operations in sequence. During operation, the disturbing threshing nails 7 can effectively eliminate and avoid the formation of excessively thick stalk layers and the occurrence of stalks being twisted into braids during axial flow threshing, greatly improving the quality of threshing, resulting in high grain recovery rate and low grain entrainment loss, producing significant technical effects.

Claims

1. An axial flow threshing drum with multi-axis disturbance function, comprising a central main shaft (9), characterized in that: A spiral conical feeder (1) and a drive pulley (13) are fixedly mounted on the left and right ends of the central spindle (9) of the drum, respectively. Sun gears (12) are fixedly mounted on the left and right sides of the central spindle (9), respectively, at the positions between the spiral conical feeder (1) and the drive pulley (13). Internal gear rings (2) are coaxially mounted on the outer parts of the sun gears (12) on the left and right sides, respectively. Planetary gears (11) are fixedly mounted on the left and right ends of the five planetary shafts (10), respectively. The five planetary gears (11) at the left end are arranged along the circumferential direction. The five planetary gears (11) at the right end are evenly distributed and installed between the internal gear ring (2) and the sun gear (12) on the left side, and mesh with each other. The five planetary gears (11) at the right end are evenly distributed and installed between the internal gear ring (2) and the sun gear (12) on the right side, and mesh with each other. The central spindle (9) of the roller is rotatably inserted into a fixedly configured positioning plate (15). The positioning plate (15) is located between the internal gear ring (2) and the drive pulley (13) on the right side. The right ends of the five planetary shafts (10) are axially and radially positioned and rotatably inserted in the circumferential direction. On the positioning plate (15), drive rings (3) are coaxially fixed on the inner sides of the inner gear rings (2) on the left and right sides respectively. On the outer side of the five planetary shafts (10), between the drive rings (3) on the left and right sides, two support rings (14) are radially and axially positioned and rotatably mounted. On the outer circumference of the drive rings (3) on the left and right sides and the support rings (14), main ejector tooth seats (4) with main ejector teeth (5) are axially supported and fixed. On the five planetary shafts (10) between the two support rings (14) respectively, Three discs (8) are evenly and fixedly installed along the axial direction. Six disturbance threshing nail tooth seats (6) with disturbance threshing nail teeth (7) are evenly and sequentially inserted into the edge of the three discs (8) on the coaxial axis. During operation, the positioning disc (15) is fixed. Under the control of the positioning disc (15), the five planetary shafts (10) can only rotate with the planetary gears (11) and cannot revolve around the central shaft (9) of the drum. The rotating planetary shafts (10) drive the six disturbance threshing nail tooth seats (6) equipped with disturbance threshing nail teeth (7) to rotate as a whole through the three discs (8).

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