Picking and cutting device of straw harvesting and packing machine

Abstract

The picking and cutting device of the straw harvesting and packing machine comprises a support plate, a left transverse cutter cutting table and a right transverse cutter cutting table are arranged on the left side and the right side of the support plate respectively, and the ends, close to the support plate, of the left transverse cutter cutting table and the right transverse cutter cutting table are both located below the support plate. A middle cross gear transmission box A is fixed to the top of the support plate, a middle cross gear transmission box B is fixed to the top of the end of the left transverse cutter cutting table, and a middle cross gear transmission box C is fixed to the top of the end of the right transverse cutter cutting table. The left output end and the right output end of the middle cross gear transmission box A are connected with the input end of the middle cross gear transmission box B and the input end of the middle cross gear transmission box C through two transmission shafts capable of being folded. The straw harvesting speed is further increased, the problem of straw omission caused by structural defects in the straw harvesting process is solved, and it can be guaranteed that straw entering a cutting area is treated more thoroughly.

Description

Technical Field

[0001] This utility model relates to a picking and cutting device for a straw harvesting and baling machine, belonging to the field of agricultural machinery technology. Background Technology

[0002] The cutting speed of existing straw harvesters and balers is not ideal, which prevents further improvement in work efficiency. Furthermore, replacing the blades of existing straw harvesters and balers is cumbersome, taking up to an hour and resulting in low efficiency, further impacting the machine's overall performance. Additionally, the existing straw harvester and baler cutting device uses a structure with parallel, horizontally arranged disc cutters. The lateral gaps between adjacent discs cause some straw to slip through these gaps, creating blind spots in the cutting process. This structure sometimes results in missed cuts, leading to incomplete and inadequate cutting. Utility Model Content

[0003] To overcome the shortcomings of the existing technology, this utility model provides a picking and cutting device for a straw harvester and baler. This device further improves the straw harvesting speed, solves the problem of straw leakage caused by structural defects during the straw harvesting process, ensures that the straw entering the cutting area is processed more thoroughly, and makes the blade replacement more convenient and quick.

[0004] The technical solution adopted by this utility model to solve its technical problem is as follows: a picking and cutting device for a straw harvester and baler includes a support plate, which is fixed to the front side of the crushing mechanism assembly of the straw harvester and baler. A left horizontal cutting table and a right horizontal cutting table are respectively provided on the left and right sides of the support plate. The ends of the left and right horizontal cutting tables near the support plate are both located below the support plate. A middle cross gear transmission box A is fixed to the top of the support plate. A middle cross gear transmission box B is fixed to the top of the end of the left horizontal cutting table. A middle cross gear transmission box C is fixed to the top of the end of the right horizontal cutting table. The left and right output ends of the middle cross gear transmission box A are respectively connected to the input ends of the middle cross gear transmission box B and the input ends of the middle cross gear transmission box C through two foldable transmission shafts.

[0005] A sprocket a is provided at the front output end of the middle cross gear transmission box B, and a sprocket b is provided at the left output end of the middle cross gear transmission box B; a sprocket c is provided at the rear output end of the middle cross gear transmission box C, and a sprocket d is provided at the right output end of the middle cross gear transmission box C.

[0006] Below the intermediate cross gear transmission box B and intermediate cross gear transmission box C, a gear transmission box I and a gear transmission box II are respectively fixed inside the left and right cross blade cutting tables. On the left cross blade cutting table, near the gear transmission box I, a horizontal auger I is installed. Outside the left cross blade cutting table, a sprocket e is mounted on the shaft of auger I, and sprocket e is connected to sprocket b through a transmission chain. On the right cross blade cutting table, near the transmission box II, a horizontal auger II is installed. Outside the right cross blade cutting table, a sprocket f is mounted on the shaft of auger II, and sprocket f is connected to sprocket d through a transmission chain.

[0007] A sprocket g is installed at the front output end of gear transmission box I, and sprocket g is connected to sprocket a through a transmission chain; a sprocket h is installed at the rear output end of gear transmission box II, and sprocket h is connected to sprocket c through a transmission chain.

[0008] Several elliptical cutting discs are installed on the bottom plates of the left and right horizontal cutting tables. Below the bottom plates of the left and right horizontal cutting tables, a gear is installed at the end of the shaft of each cutting disc. A main drive gear I is installed at the bottom output end of gear transmission box I, and a main drive gear II is installed at the bottom output end of gear transmission box II. The main drive gear I meshes with the adjacent gears, the main drive gear II meshes with the adjacent gears, and the remaining adjacent gears mesh with each other.

[0009] Furthermore, the adjacent elliptical cutting discs on the bottom plates of the left and right horizontal cutting tables are staggered in both the horizontal and vertical directions, and all cutting discs are located in the same plane.

[0010] Furthermore, in both the left and right cross-blade cutting tables, a vertical transfer cylinder is installed on the cutting discs near the middle cross gear transmission box B and the middle cross gear transmission box C; a vertical transfer cylinder is also installed on the cutting discs away from the middle cross gear transmission box B and the middle cross gear transmission box C.

[0011] Furthermore, several toothed plates are fixed in a vertical direction and are evenly spaced on the circumference of the transfer cylinder. Above the toothed plates, the four corners of the top plate of the transfer cylinder are all upturned.

[0012] Furthermore, one end of each of the two reverse hinges is fixed to the top of the support plate, and the other end of each of the two reverse hinges is fixedly connected to the top of the left and right horizontal blade cutting tables, respectively. The top of both the left and right horizontal blade cutting tables is fixed with two parallel and spaced reverse cylinder front seats. The reverse cylinder front seats are hinged to the piston end of their respective side reverse cylinders, and the cylinder bodies of the reverse cylinders are hinged to both sides of the frame of the stalk harvester and baler.

[0013] The beneficial effects of this utility model are as follows: Through the cooperation of the intermediate cross gear transmission box and the sprocket transmission structure, as well as the staggered arrangement of the cutting blades, this utility model achieves efficient cutting and comprehensive collection of straw, increasing the cutting speed by 1 / 3, from 12 km / h to 20 km / h; the blade replacement is more convenient and quick, and can be completed in just 20 minutes; it effectively solves the problem of straw leakage caused by structural defects during straw harvesting, ensuring that the straw entering the cutting area is completely cut and processed; it has the advantages of improving cutting efficiency, reducing straw leakage, and facilitating maintenance. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the structure of this utility model.

[0017] Figure 3 This is a side view of the present invention.

[0018] Figure 4 This is a schematic diagram showing the positions of the gears at the bottom of the left horizontal blade cutting table of this utility model.

[0019] Figure 5 This is a schematic diagram showing the positions of the gears at the bottom of the right horizontal blade cutting table of this utility model.

[0020] Figure 6 This is a schematic diagram showing the position of the sprocket h in this utility model.

[0021] Figure 7 This is a schematic diagram showing the position of the transfer tube of this utility model.

[0022] Numbering on the map:

[0023] 1. Support plate; 2. Left cross-blade cutting table; 3. Right cross-blade cutting table; 4. Middle cross gear transmission box A; 5. Middle cross gear transmission box B; 6. Middle cross gear transmission box C; 7. Gear transmission box I; 8. Gear transmission box II; 9. Crushing mechanism assembly; 10. Sprocket a; 11. Sprocket b; 12. Sprocket c; 13. Sprocket d; 14. Screwdriver I; 15. Sprocket e; 16. Screwdriver II; 17. Sprocket f; 18. Cutting disc; 19. Gear; 20. Main drive gear I; 21. Main drive gear II; 22. Transmission cylinder; 23. Tooth plate; 24. Reverse hinge; 25. Reverse cylinder front seat; 26. Reverse cylinder; 27. Frame; 28. Sprocket g; 29. ​​Sprocket h; 30. Small cutter roller shaft. Detailed Implementation

[0024] like Figure 1 As shown in Figure 7, a picking and cutting device for a straw harvester and baler includes a support plate 1. The support plate 1 is fixed to the front side of the crushing mechanism assembly 9 of the straw harvester and baler at the middle position. A left horizontal cutting table 2 and a right horizontal cutting table 3 are respectively provided on the left and right sides of the support plate 1. The ends of the left horizontal cutting table 2 and the right horizontal cutting table 3 near the support plate 1 are both located below the support plate 1. A middle cross gear transmission box A4 is fixed to the top of the support plate 1. A middle cross gear transmission box B5 is fixed to the top of the end of the left horizontal cutting table 2. A middle cross gear transmission box C6 is fixed to the top of the end of the right horizontal cutting table 3. The left and right output ends of the middle cross gear transmission box A4 are connected to the input ends of the middle cross gear transmission box B5 and the input ends of the middle cross gear transmission box C6 through two foldable transmission shafts.

[0025] A sprocket a10 is provided at the front output end of the middle cross gear transmission box B5, and a sprocket b11 is provided at the left output end of the middle cross gear transmission box B5; a sprocket c12 is provided at the rear output end of the middle cross gear transmission box C6, and a sprocket d13 is provided at the right output end of the middle cross gear transmission box C6.

[0026] Below the intermediate cross gear transmission box B5 and intermediate cross gear transmission box C6, a gear transmission box I7 and a gear transmission box II8 are respectively fixed inside the left cross-blade cutting table 2 and the right cross-blade cutting table 3. On the side of the left cross-blade cutting table 2 near the gear transmission box I7, a horizontal auger I14 is installed. On the outside of the left cross-blade cutting table 2, a sprocket e15 is mounted on the shaft of the auger I14. The sprocket e15 is connected to the sprocket b11 through a transmission chain. On the side of the right cross-blade cutting table 3 near the transmission box II8, a horizontal auger II16 is installed. On the outside of the right cross-blade cutting table 3, a sprocket f17 is mounted on the shaft of the auger II16. The sprocket f17 is connected to the sprocket d13 through a transmission chain.

[0027] Several elliptical cutting discs 18 are installed on the bottom plate of the left horizontal cutting table 2 and the bottom plate of the right horizontal cutting table 3. The adjacent elliptical cutting discs 18 are staggered in the horizontal and vertical directions, and all cutting discs 18 are located in the same plane. Below the bottom plates of the left horizontal cutting table 2 and the right horizontal cutting table 3, a gear 19 is installed at the end of each cutting disc shaft of the cutting disc 18. A main drive gear I 20 is installed at the bottom output end of the gear transmission box I 7, and a main drive gear II 21 is installed at the bottom output end of the gear transmission box II 8. The main drive gear I 20 is meshed with the adjacent gear 19, the main drive gear II 21 is meshed with the adjacent gear 19, and the remaining adjacent gears 19 are meshed with each other.

[0028] A sprocket g28 is installed at the front output end of gear transmission box I7, and sprocket g28 is connected to sprocket a10 through a transmission chain; a sprocket h29 is installed at the rear output end of gear transmission box II8, and sprocket h29 is connected to sprocket c12 through a transmission chain.

[0029] In the left cross-blade cutting table 2 and the right cross-blade cutting table 3, a vertically oriented transfer cylinder 22 is installed on the cutting disc 18 near the middle cross gear transmission box B5 and near the middle cross gear transmission box C6; a vertically oriented transfer cylinder 22 is also installed on the cutting disc 18 away from the middle cross gear transmission box B5 and away from the middle cross gear transmission box C6; several vertically arranged and evenly spaced toothed plates 23 are fixed on the circumference of the transfer cylinder 22, and above the toothed plates 23, the four corners of the top plate of the transfer cylinder 22 are all raised upwards.

[0030] Two reverse hinges 24 are fixed to one end of each side of the top of the support plate 1. The other ends of the two reverse hinges 24 are fixedly connected to the top of the left horizontal cutter table 2 and the right horizontal cutter table 3, respectively. Two reverse cylinder front seats 25 are fixed to the top of the left horizontal cutter table 2 and the right horizontal cutter table 3, which are arranged side by side. The piston end of the reverse cylinder 26 is hinged to the piston end of the reverse cylinder 26 on each side. The cylinder body end of the reverse cylinder 26 is hinged to both sides of the frame 27 of the stalk harvester and baler.

[0031] During operation, the straw harvester and baler is connected to the tractor via a lower suspension device on the front bogie. The tractor's drive unit is connected to the input shaft on the front bogie. The input shaft in the front bogie drives the input shaft in the rear bogie to rotate, which in turn drives the intermediate cross gear transmission box A4. The cross gear transmission box A4 has multi-directional output characteristics. The output ends on both sides of the intermediate cross gear transmission box A4 drive the intermediate cross gear transmission boxes B5 and C6 via transmission shafts. The sprocket b11 on the left output end of the intermediate cross gear transmission box B5 drives the sprocket e15 to rotate via a transmission chain. The sprocket e15 drives the auger I14 to rotate under the support of bearings. The sprocket a10 on the front output end of the intermediate cross gear transmission box B5 drives the sprocket g28 to rotate via a transmission chain. The sprocket g28 drives the main drive gear I20 to rotate via the transmission of the gear transmission box I7. The main drive gear I20 then drives the adjacent gears. When gear 19 rotates, it drives the other gears 19 on the same side to rotate. The rotation of each gear 19 then drives its respective cutting disc 18 to rotate. The cutting disc 18 is driven by gear meshing. Similarly, sprocket d13 on the right output end of the middle cross gear transmission box C6 drives sprocket f17 to rotate via a transmission chain. Sprocket f17 drives auger II 16 to rotate under the support of bearings. Sprocket c12 on the rear output end of the middle cross gear transmission box C6 drives sprocket h29 to rotate via a transmission chain. Sprocket h29, through gear transmission box II 8, drives main drive gear II 21 to rotate. Main drive gear II 21 then drives the adjacent gear 19 on this side to rotate, which in turn drives the other gears 19 on this side to rotate. Thus, the rotation of each gear 19 on this side drives its respective cutting disc 18 to rotate. The meshing of the gears forms a linkage, and the meshing transmission between the gears 19 also ensures that adjacent cutting discs 18 maintain a fixed phase difference.

[0032] The cutting disc 18 cuts the straw. The transfer cylinder 22 at the end of the left horizontal cutting table 2 furthest from auger I 14 and the transfer cylinder 22 at the end of the right horizontal cutting table 3 furthest from auger II 16 directly transfer the cut straw to the small blade roller shaft 30 of the straw harvester and baler. The transfer cylinder 22 at the end of the left horizontal cutting table 2 closest to auger I 14 and the transfer cylinder 22 at the end of the right horizontal cutting table 3 closest to auger II 16 transfer the cut straw towards auger I 14 and auger II 16 respectively. 4 and auger II 16 transmit the straw through the small blade roller shaft 30 of the straw harvester and baler to the crushing mechanism assembly 9, where the crushing mechanism assembly 9 crushes the cut straw before proceeding to the subsequent forced feeding and rolling baling process. During the transmission process, the two transmission cylinders 22 in the left horizontal blade cutting table 2 and the two transmission cylinders 22 in the right horizontal blade cutting table 3 rotate in different directions; the auger I 14 in the left horizontal blade cutting table 2 and the auger II 16 in the right horizontal blade cutting table 3 also rotate in different directions.

[0033] The adjacent elliptical cutting discs 18 on the base plates of the left and right horizontal cutting tables 2 and 3 are staggered horizontally and vertically. When the cutting discs 18 rotate, they form differentiated cutting trajectories with a larger coverage area. This arrangement allows the rotational trajectories of adjacent cutting discs 18 to form complementary coverage, enabling them to cover a larger cutting area and avoiding the cutting blind spots formed by traditional side-by-side arrangements. When the device moves forward, after the preceding disc completes the initial cutting, the subsequent staggered discs can perform secondary cutting on the remaining straw, causing the cutting trajectories of adjacent discs to overlap, forming continuous cutting coverage within the unit working width. This is more conducive to eliminating the trajectory gaps generated when the cutting discs 18 rotate, thus forming a continuous and uninterrupted cutting line during straw harvesting. The fact that the cutting discs 18 are on the same plane ensures that the cutting depth is consistent when all discs contact the straw, guaranteeing that the cutting forces generated by different cutting discs 18 work synergistically on the same horizontal plane, further improving the integrity of straw cutting.

[0034] When the pistons of each reversing cylinder 26 retract into their respective cylinder bodies, the left horizontal cutting table 2 and the right horizontal cutting table 3 can flip upwards under the action of their respective side reversing hinges 24, exposing the gear set for easy maintenance. When the left horizontal cutting table 2 and the right horizontal cutting table 3 fold upwards, the drive shaft also folds upwards under the action of the universal joint, adapting to the relative position changes of the two horizontal cutting tables and avoiding interference with the left horizontal cutting table 2 and the right horizontal cutting table 3.

Claims

1. A picking and cutting device of a straw harvesting and baling machine, comprising a support plate (1) fixed to the front side of the straw harvesting and baling machine at the middle position of the crushing mechanism assembly (9), characterized in that: The support plate (1) is provided with a left horizontal knife cutting table (2) and a right horizontal knife cutting table (3) on the left and right sides respectively, the left horizontal knife cutting table (2) and the right horizontal knife cutting table (3) are located below the support plate (1) near one end of the support plate (1); the top of the support plate (1) is fixed with a middle cross gear transmission box A (4), the top of the end of the left horizontal knife cutting table (2) is fixed with a middle cross gear transmission box B (5), the top of the end of the right horizontal knife cutting table (3) is fixed with a middle cross gear transmission box C (6), the left and right output ends of the middle cross gear transmission box A (4) are connected with the input end of the middle cross gear transmission box B (5) and the input end of the middle cross gear transmission box C (6) through two foldable transmission shafts respectively; The outer front side output end of the middle cross gear transmission box B (5) is provided with a chain wheel a (10), the outer left side output end of the middle cross gear transmission box B (5) is provided with a chain wheel b (11); the outer rear side output end of the middle cross gear transmission box C (6) is provided with a chain wheel c (12), the outer right side output end of the middle cross gear transmission box C (6) is provided with a chain wheel d (13); Below the middle cross gear transmission box B (5) and the middle cross gear transmission box C (6), the left horizontal knife cutting table (2) and the right horizontal knife cutting table (3) are respectively fixed with a gear transmission box I (7) and a gear transmission box II (8) inside; a horizontal direction screw conveyor I (14) is installed in the left horizontal knife cutting table (2) near one side of the gear transmission box I (7), a chain wheel e (15) is installed on the shaft head of the screw conveyor I (14) outside the left horizontal knife cutting table (2), the chain wheel e (15) is connected with the chain wheel b (11) through a transmission chain; a horizontal direction screw conveyor II (16) is installed in the right horizontal knife cutting table (3) near one side of the gear transmission box II (8), a chain wheel f (17) is installed on the shaft head of the screw conveyor II (16) outside the right horizontal knife cutting table (3), the chain wheel f (17) is connected with the chain wheel d (13) through a transmission chain; The bottom plate of the left horizontal knife cutting table (2) and the bottom plate of the right horizontal knife cutting table (3) are both installed with a plurality of oval cutting knife discs (18) above, below the bottom plates of the left horizontal knife cutting table (2) and the right horizontal knife cutting table (3), each disc shaft end of the cutting knife disc (18) is installed with a gear (19), a main drive gear I (20) is installed on the bottom output end of the gear transmission box I (7), a main drive gear II (21) is installed on the bottom output end of the gear transmission box II (8), the main drive gear I (20) is connected with the adjacent gear (19) in meshing, the main drive gear II (21) is connected with the adjacent gear (19) in meshing, the remaining adjacent gears (19) are connected with each other in meshing; A chain wheel g (28) is installed on the front side output end of the gear transmission box I (7), the chain wheel g (28) is connected with the chain wheel a (10) through a transmission chain; a chain wheel h (29) is installed on the rear side output end of the gear transmission box II (8), the chain wheel h (29) is connected with the chain wheel c (12) through a transmission chain.

2. A pickup and cutting device for a straw harvester and baler according to claim 1 wherein: The left horizontal knife cutting table (2) and the right horizontal knife cutting table (3) are arranged in horizontal and vertical staggered manner on the bottom plate of each adjacent oval cutting disc (18), and each cutting disc (18) is located in the same plane.

3. The pickup and cutting device of a straw harvesting and baling machine according to claim 1, characterized in that: In the left horizontal knife cutting table (2) and the right horizontal knife cutting table (3), the cutting disc (18) near the middle cross gear transmission box B (5) and the middle cross gear transmission box C (6) is provided with a vertical transmission cylinder (22); the cutting disc (18) far from the middle cross gear transmission box B (5) and the middle cross gear transmission box C (6) is also provided with a vertical transmission cylinder (22).

4. A pickup and cutting device for a straw harvester and baler according to claim 3 wherein: The transmission cylinder (22) is fixed with a plurality of vertical and uniformly spaced tooth plates (23) in the circumferential direction, and the four corners of the top plate of the transmission cylinder (22) are upwardly curved above the tooth plate (23).

5. The pickup and cutting device of a straw harvesting and baling machine according to claim 1, characterized in that: The support plate (1) is fixed with two reverse folding plates (24) on both sides of the top, and the other end of the two reverse folding plates (24) is fixedly connected with the top of the left horizontal knife cutting table (2) and the right horizontal knife cutting table (3); the top of the left horizontal knife cutting table (2) and the right horizontal knife cutting table (3) is fixed with two reverse oil cylinder front seats (25) arranged in parallel and spaced apart, and the reverse oil cylinder front seats (25) are hinged to the piston end of the reverse oil cylinder (26) on the respective side, and the cylinder end of the reverse oil cylinder (26) is hinged to the rack (27) on both sides of the stalk harvesting and packaging machine.

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