An axial flow threshing cylinder suitable for short straw full feed threshing

Abstract

The utility model relates to a kind of short straw full feeding threshing axial-flow cylinder suitable for belongs to agricultural machinery;Spiral shaft of driving pulley and driving disc is rotatably inserted and is installed on fixedly configured sun gear, fixedly configured annular groove track plate is inserted on the outer part of spiral shaft, screen shaft and gear shaft with bearing A and bearing B respectively are inserted and installed on driving disc with mutual interval, bearing A and bearing B support insertion in the track groove of annular groove track plate, barrel screen is assembled at the outer position of spiral shaft by screen shaft, planetary gear, support disc, spike shaft and spike are successively fixed in gear shaft, circular internal tooth ring is sleeved on the outer part of planetary gear, planetary gear is engaged with sun gear and circular internal tooth ring respectively;The cylinder greatly improves the short straw full feeding axial-flow threshing net rate, and power consumption is low, seed inclusion loss is less, separation efficiency is high, and reliable in use.

Description

TECHNICAL FIELD

[0001] The present application belongs to agricultural machinery, and mainly relates to an axial-flow threshing cylinder. BACKGROUND

[0002] The axial-flow threshing cylinder is a full-feeding threshing device. During operation, the crop stalks and heads are all fed into the threshing cylinder, and the crop grains are separated from the heads under the beating and combing of the nails and the rubbing of the stalks. Since the stalks participate in the threshing during the threshing operation, the pulling force of the stalks can make the grains more easily separated, thereby improving the threshing efficiency and the threshing rate. Therefore, up to now, long stalk feeding is still adopted. However, in many years of operation and practice, it is found that the long stalks have the problem of carrying the separated grains in the stalk layer and discharging the grains out of the machine with the stalks, which reduces the grain separation and recovery rate. Meanwhile, when the long stalks are fed in large quantities, the axial-flow threshing cylinder is blocked, the failure rate is high, and the power consumption is increased.

[0003] In scientific research tests, the axial-flow threshing cylinder with the existing structure is used for short stalk threshing, the power consumption and grain loss are reduced, and the cylinder is not easily blocked. However, since the stalks are shortened, the threshing rate is obviously reduced. Therefore, it is necessary to develop an axial-flow threshing cylinder suitable for short stalk full-feeding threshing to ensure and improve the grain threshing rate and meet the operation requirements. SUMMARY

[0004] The present application is aimed at the problems of the prior art, and is developed and designed in combination with the actual requirements of the axial-flow full-feeding threshing operation to be suitable for short stalk full-feeding threshing, so as to be suitable for short stalk threshing operation, have high threshing rate, small power consumption, less grain loss and less use failure.

[0005] The application is achieved by fixing the sun gear on the fixed support plate in a fixed configuration, fixing the circular groove track plate on the fixed seat plate in a different configuration, coaxially arranging the sun gear and the circular groove track plate, rotatably inserting the spiral shaft at the central part of the sun gear, fixing the driving pulley and the driving disc on the left end of the spiral shaft at the left and right sides of the sun gear respectively, inserting the right end of the spiral shaft into the interior of the circular groove track plate with a radial distance between them, evenly and interval inserting four gear shafts and four screen mesh shafts on the driving disc in the circumferential direction, parallel to the spiral shaft, fixing the bearing B and the bearing A on the right end of the four gear shafts and the four screen mesh shafts respectively, rotatably inserting the bearing B and the bearing A into the circular groove of the circular groove track plate, fixing the planetary gear on the left end of the four gear shafts, sleeving the circular internal gear ring on the exterior of the four planetary gears, engaging the four planetary gears with the sun gear and the circular internal gear ring respectively, fixing the cylinder screen mesh on the exterior of the four screen mesh shafts, sleeving the cylinder screen mesh on the exterior of the spiral shaft, opening the short straw discharge port on the left end of the cylinder screen mesh, fixing the two support discs on the gear shafts, supporting and inserting the four tine shafts in the circumferential direction between the two oppositely arranged support discs, fixing the tines on the tine shafts, and locating the tine shafts between the exterior of the spiral shaft and the interior of the cylinder screen mesh, thereby forming an axial flow type threshing cylinder suitable for short straw full feeding threshing.

[0006] The application adopts the tine shaft with tines with revolution and rotation functions controlled by the planetary gear train and cooperated with the synchronously rotating cylinder screen mesh, greatly ensures and improves the short straw full feeding axial flow threshing net rate, has low operation power consumption, less grain entrainment loss, high net rate and separation efficiency, reliable operation, no blockage, novel, unique, reasonable and compact structure, and provides technical support and guarantee for short straw threshing. BRIEF DESCRIPTION OF DRAWINGS

[0007] Figure 1 FIG. 1 is a three-dimensional schematic diagram of the overall structure of an axial flow type threshing cylinder suitable for short straw full feeding threshing;

[0008] Figure 2 FIG. 2 is a two-dimensional schematic diagram of the overall structure of an axial flow type threshing cylinder suitable for short straw full feeding threshing;

[0009] Figure 3 FIG. 3 is a three-dimensional exploded schematic diagram of the overall structure of an axial flow type threshing cylinder suitable for short straw full feeding threshing.

[0010] FIG. 1 is a three-dimensional schematic diagram of the overall structure of an axial flow type threshing cylinder suitable for short straw full feeding threshing;

[0011] 1, drive pulley, 2, driving disc, 3, spiral shaft, 4, sun gear, 5, planetary gear, 6, gear shaft, 7, support disc, 8, tine shaft, 9, tine, 10, bearing A, 11, cylindrical screen, 12, fixed seat plate, 13, circular groove track plate, 14, circular inner ring, 15, screen shaft, 16, fixed support plate, 17, bearing B. DETAILED DESCRIPTION

[0012] The embodiment of the present application is described in detail below with reference to the drawings. A shaft flow type threshing cylinder suitable for short straw full feeding threshing is provided with a sun gear 4 fixed on a fixed support plate 16 in a stationary configuration, a circular groove track plate 13 fixed on a fixed seat plate 12 in a different configuration, the sun gear 4 and the circular groove track plate 13 being coaxially arranged, a spiral shaft 3 rotatably inserted in the center part of the sun gear 4, a drive pulley 1 and a driving disc 2 being respectively fixed on the left end of the spiral shaft 3 at the left and right side parts of the sun gear 4, the right end part of the spiral shaft 3 being inserted in the interior of the circular groove track plate 13 and leaving a spacing in the radial direction; four gear shafts 6 and four screen shafts 15 being respectively inserted in the circumferential direction and evenly spaced, the gear shafts 6 and the screen shafts 15 being parallel to the spiral shaft 3, a bearing B 17 and a bearing A 10 being respectively installed on the right end parts of the four gear shafts 6 and the four screen shafts 15, the bearing B 17 and the bearing A 10 being respectively rotatably inserted in the circular grooves of the circular groove track plate 13, planetary gears 5 being respectively fixed on the left end heads of the four gear shafts 6, a circular inner ring 14 being sleeved on the exterior of the four planetary gears 5, the four planetary gears 5 being respectively engaged with the sun gear 4 and the circular inner ring 14; cylindrical screens 11 being fixed on the exterior of the four screen shafts 15, the cylindrical screens 11 being sleeved on the exterior of the spiral shaft 3, short straw discharge outlets being formed on the left side end parts of the cylindrical screens 11, two support discs 7 being respectively fixed on the gear shafts 6, four tine shafts 8 being evenly and parallelly supported and inserted between the between parts of the oppositely arranged two support discs 7 in the circumferential direction, tines 9 being fixed on the tine shafts 8, the tine shafts 8 being located between the exterior of the spiral shaft 3 and the interior of the cylindrical screens 11.

[0013] When the machine is in use, the whole shaft flow cylinder is supported and fixed on the threshing machine frame by the fixed support plate 16 and the fixed seat plate 12. The external transmission rotary power drives the spiral shaft 3 to rotate through the driving pulley 1, and the rotary power of the spiral shaft 3 synchronously drives the screen shaft 15 and the gear shaft 6 through the driving disc 2, and under the support and cooperation control of the bearing A10 and the bearing B17 and the circular ring groove track plate 13, the public rotation around the spiral shaft 3 is realized, at the same time, the cylinder screen 11 is driven by the screen shaft 15 to rotate around the spiral shaft 3, and under the cooperation control of the fixed sun gear 4 and the circular inner ring 14, the self-rotation of the gear shaft 6 is driven by the planetary gear 5, and the support disc 7, the tine shaft 8 and the tine 9 are driven to rotate around the spiral shaft 3 and the tine shaft 8 at the same time, the short straw axially fed between the circular ring groove track plate 13 and the spiral shaft 3 is threshed, and the short straw is transported to the left side under the action of the spiral shaft 3, the grain is separated and discharged through the cylinder screen 11, and the short straw after the threshing operation is discharged from the short straw discharge port on the left side of the cylinder screen 11. During the operation, the tine 9 rotates around the spiral shaft 3 and the gear shaft 6, and the compound motion greatly improves the threshing quality and effect of the short straw.

Claims

1. A short straw full feed threshing axial flow cylinder suitable for short straw full feed threshing, characterised in that: The sun gear (4) is fixed on the fixed support plate (16) in the stationary configuration, and the circular groove track plate (13) is fixed on the fixed seat plate (12) in the different configuration. The sun gear (4) is coaxially arranged with the circular groove track plate (13). The spiral shaft (3) is rotatably inserted in the central part of the sun gear (4). The driving belt pulley (1) and the driving disc (2) are respectively fixed on the left and right side parts of the sun gear (4) at the left end of the spiral shaft (3). The right end of the spiral shaft (3) is inserted into the circular groove track plate (13) with a radial spacing. Four gear shafts (6) and four screen shafts (15) are sequentially inserted into the driving disc (2) in the circumferential direction. The gear shafts (6) and the screen shafts (15) are parallel to the spiral shaft (3). The bearings B (17) and the bearings A (10) are respectively installed at the right ends of the four gear shafts (6) and the four screen shafts (15). The bearings B (17) and the bearings A (10) are rotatably inserted into the circular groove of the circular groove track plate (13). The planetary gears (5) are respectively fixed on the left ends of the four gear shafts (6). The circular internal tooth ring (14) is sleeved on the outside of the four planetary gears (5). The four planetary gears (5) are respectively engaged with the sun gear (4) and the circular internal tooth ring (14). The cylindrical screen (11) is fixed on the outside of the four screen shafts (15). The cylindrical screen (11) is sleeved on the outside of the spiral shaft (3). The short straw discharge port is formed on the left side end of the cylindrical screen (11). Two support discs (7) are respectively fixed on the gear shafts (6). Four tine shafts (8) are parallelly and evenly arranged between the two oppositely arranged support discs (7) in the circumferential direction. The tines (9) are fixed on the tine shafts (8). The tine shafts (8) are located between the outside of the spiral shaft (3) and the inside of the cylindrical screen (11).

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