Forage grass picking header

Abstract

The technical scheme of the utility model discloses a forage grass picking header. The forage grass picking header comprises an upper frame, a hanging frame, a gear shifting gearbox, a left auger connecting plate, a right auger connecting plate, a feeding auger, a picking frame body, a rubber damping unit, an elastic tooth structure and a profiling wheel. The hooking frame is hinged to the upper frame, a gear shifting gearbox is fixed to the left side of the upper frame and hinged to a left auger connecting plate through a shell of an output shaft on the gear shifting gearbox, the right side of the upper frame is hinged to a right auger connecting plate through an upper frame connecting shaft, and the left side and the right side of the picking frame body are fixed to the upper frame through rubber damping units. The elastic tooth structure is mounted on the picking frame body; the profiling wheel is connected to the swing arm in a sliding mode, and the swing arm is hinged to the picking frame body through a connecting rod assembly. Left-right rotation of the two profiling wheels is achieved through a connecting structure of the left profiling wheel and the right profiling wheel, the upper frame is connected with the picking frame body through the rubber vibration reduction unit, and the good vibration reduction effect is achieved when the bottom face is uneven.

Description

Technical Field

[0001] This utility model belongs to the field of agricultural machinery technology, specifically relating to a forage harvesting and cutting platform. Background Technology

[0002] With the development of animal husbandry, the market demands increasingly higher efficiency and quality in forage harvesting, placing greater emphasis on the reliability, operational efficiency, and adaptability of forage harvesting platforms. Forage harvesting platforms are primarily attached to the front of silage harvesters or balers to collect and feed the harvested forage. Currently, most forage harvesting platforms on the market employ a single-frame structure with a collection and feeding auger, where the attachment structure is welded to the main frame. This integrated structure is highly susceptible to impact during operation, exhibits poor adaptability, and cannot be quickly switched between different attachment points by changing the interface. Furthermore, the contouring wheels are fixedly assembled, allowing only in-situ rotation and overall vertical movement according to terrain. The contouring wheels are typically positioned in front of the spring-loaded structure, partially obstructing both ends of the spring-loaded structure and reducing the harvesting width.

[0003] Patent CN 116018938B discloses a contour detection mechanism and control method for a self-propelled forage harvester header. A contour wheel is installed at the lower end of the contour plate, which contacts the ground. The contour wheel moves up and down with the undulations of the ground, transmitting the angle changes of the contour plate to an angle sensor. This converts changes in field height into angle changes, which in turn generate control signals for the header's lifting and lowering. The contour detection mechanism is positioned forward, resulting in good contour detection performance and adaptability to steep slopes, effectively preventing damage from the header hitting the ground. Power transmission between the contour plate and the angle sensor uses gear transmission, minimizing error and ensuring timely angle change transmission. The contour plate can move within a wide angle range, avoiding damage due to angle limitations. The contour wheel simply follows the contour plate's up-and-down movement. Therefore, there is a need to develop a contour wheel that can rotate in the left-right direction and is suitable for forage harvesting headers mounted on different forage harvesters or balers. Utility Model Content

[0004] To address the existing technical problems, this utility model provides a forage picking and cutting platform. The left and right contouring wheels can rotate left and right through a connection structure, and the upper frame is connected to the picking frame through a rubber vibration damping unit, achieving a good shock absorption effect when the bottom surface is uneven.

[0005] The technical solution of this utility model is: a forage picking and cutting platform, including an upper frame, a hanging frame, a shift gearbox, a left auger connecting plate, a right auger connecting plate, a feeding auger, a picking frame, a rubber shock absorption unit, a spring tooth structure, and a contour wheel;

[0006] The mounting frame is located at the middle rear side of the upper frame and is hinged to the upper frame.

[0007] The shift gearbox is fixed on the left side of the upper frame. The shift gearbox is hinged to the left auger connecting plate through the housing of the output shaft on the shift gearbox. The right side of the upper frame is hinged to the right auger connecting plate through the upper frame connecting shaft. The feeding auger is installed between the left and right auger connecting plates through the auger bearing seat. The left and right auger connecting plates are connected to the picking frame body by springs respectively.

[0008] The left and right sides of the pickup frame are fixed to the upper frame by rubber shock-absorbing units; the spring tooth structure is installed on the pickup frame.

[0009] The contour wheel is slidably connected to the swing arm, which is hinged to the pickup frame via a linkage assembly.

[0010] Furthermore, the left side of the pickup frame is fixed to the left connecting plate, the rear end of the left connecting plate is fixed to the upper frame through a rubber shock-absorbing unit, the right side of the pickup frame is fixed to the upper frame through a rubber shock-absorbing unit, and the spring tooth structure is installed on the pickup frame through a spring tooth beam bearing seat.

[0011] Furthermore, the contouring wheel includes a left contouring wheel and a right contouring wheel, and the linkage assembly includes a left outer linkage, a left inner linkage, a right outer linkage, and a right inner linkage. The left contouring wheel is slidably connected to the left swing arm via a left perforated tube. The left swing arm is hinged to the pickup frame via the left outer linkage and the left inner linkage, respectively. The right contouring wheel is slidably connected to the right swing arm via a right perforated tube. The right swing arm is hinged to the pickup frame via the right outer linkage and the right inner linkage, respectively. The left outer linkage and the left inner linkage are driven by a left linkage cylinder, and the right outer linkage and the right inner linkage are driven by a right linkage cylinder. The left linkage cylinder is mounted on the left connecting plate, and the right linkage cylinder is mounted on the pickup frame.

[0012] Furthermore, the rubber damping unit includes an inner square tube connecting frame, rubber spring rods, and an outer square tube connecting frame. The inner square tube connecting frame is located inside the outer square tube connecting frame, and one end of the inner square tube connecting frame extends to the outside of the outer square tube connecting frame. The inner square tube connecting frame is connected to the outer square tube connecting frame through rubber spring rods. There are a total of 4 rubber spring rods, which correspond to the four edges of the outer square tube connecting frame.

[0013] Furthermore, the rubber shock-absorbing unit is fixed to the rear of the lower left and lower right sides of the upper frame by bolts.

[0014] Furthermore, the left plum blossom tube moves up and down along the left swing arm and is positioned by a pin, while the right plum blossom tube moves up and down along the right swing arm and is positioned by a pin.

[0015] Furthermore, the left outer connecting rod and the left inner connecting rod are of the same length, the right outer connecting rod and the right inner connecting rod are of the same length, the left connecting rod cylinder is connected to the left outer connecting rod, and the right connecting rod cylinder is connected to the right outer connecting rod.

[0016] Furthermore, the mounting frame is hinged to the upper frame via a mounting rotation shaft, which is located at the lower middle position of the mounting frame. The upper middle position, the lower left side, and the lower right side of the mounting frame are all hinged to the upper frame via ball joints.

[0017] Furthermore, the left auger connecting plate is hinged to the left connecting frame of the pressure roller via a bushing, and the right auger connecting plate is hinged to the right connecting frame of the pressure roller via a bushing. The left connecting frame of the pressure roller and the right connecting frame of the pressure roller are hinged to the upper front pressure roller via a bushing. The two ends of the upper front pressure roller are respectively connected to the pressure roller cylinder, and the pressure roller cylinder is hinged to the left auger connecting plate and the right auger connecting plate.

[0018] Furthermore, support rollers are fixed on the upper left and right sides of the picking frame, with the left support roller resting on the lower edge of the left auger connecting plate and the right support roller resting on the lower edge of the right auger connecting plate.

[0019] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows:

[0020] (1) This utility model achieves the left and right rotation of the left and right contour wheels by cooperating with the left contour wheel, the left plum blossom tube, the left swing arm, the left outer connecting rod, the left inner connecting rod and the left connecting rod cylinder, as well as cooperating with the right plum blossom tube, the right swing arm, the right outer connecting rod, the right inner connecting rod and the right connecting rod cylinder. When the picking and cutting table is working, the left and right contour wheels rotate outward, making the picking width wider and the operator more convenient to observe. When the picking and cutting table is in the process of transportation, the left and right contour wheels rotate inward, reducing the transportation width and facilitating transportation.

[0021] (2) The upper frame and the picking frame are connected by a flexible structure of rubber vibration damping unit. When the ground is uneven, the vibration damping effect is good and the adaptability is strong.

[0022] (3) The hanging frame is connected to the upper frame by a hinge, so that the picking cutter can follow the shape of the terrain in the left and right directions. Different silage machines or balers can be hung and installed by changing the hanging frame, so as to achieve multiple uses of one machine and high applicability.

[0023] (4) The transmission of the feeding auger adopts a shift gearbox, which can achieve three-speed switching, output different speeds, and is suitable for different feeding auger feeding requirements, reducing feeding auger blockage. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of this utility model;

[0025] Figure 2 This is the left view of the present invention;

[0026] Figure 3 This is the right view of the present invention;

[0027] Figure 4 This is a rear view of the present invention;

[0028] Figure 5 This is a top view of the left and right contour wheels of this utility model after they have been rotated out.

[0029] Figure 6 This is a schematic diagram of the structure of the rubber shock absorption unit of this utility model.

[0030] In the diagram: 1. Upper frame; 2. Hanging frame; 3. Gearbox; 4. Left auger connecting plate; 5. Right auger connecting plate; 6. Feeding auger; 7. Pickup frame; 8. Rubber shock absorption unit; 9. Spring tooth structure; 10. Left contour wheel; 11. Right contour wheel; 12. Hanging rotating shaft; 13. Ball joint connecting rod; 14. Upper output shaft of gearbox; 15. Upper frame connecting shaft; 16. Auger bearing seat; 17. Spring; 19. Left connecting plate; 20. Spring tooth beam bearing seat; 21. Left plum blossom tube; 22. Left swing arm; 23. Left outer connecting rod; 24. Left inner connecting rod; 25. 26. Right plum blossom tube; 27. Right swing arm; 28. Right outer connecting rod; 29. ​​Right inner connecting rod; 30. Left connecting rod cylinder; 31. Right connecting rod cylinder; 32. Left connecting frame of pressure roller; 33. Right connecting frame of pressure roller; 34. Front upper pressure roller; 35. Pressure roller cylinder; 36. Support roller; 87. Inner square tube connecting frame; 88. Rubber spring rod; 89. Outer square tube connecting frame; 90. Angle box; 91. Sprocket I; 92. Chain I; 93. Sprocket II; 94. Sprocket III; 95. Chain II; 96. Sprocket IV; 97. Lower output shaft of gearbox; 100. Universal drive shaft. Detailed Implementation

[0031] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0032] Example 1

[0033] Reference Figure 1-6 In the middle, a forage picking and cutting platform includes an upper frame 1, a hanging frame 2, a shift gearbox 3, a left auger connecting plate 4, a right auger connecting plate 5, a feeding auger 6, a picking frame 7, a rubber shock absorption unit 8, a spring tooth structure 9, and a contour wheel;

[0034] The hanging frame 2 is located on the middle rear side of the upper frame 1, and the hanging frame 2 is hinged to the upper frame 1.

[0035] The shift gearbox 3 is fixed on the left side of the upper frame 1. The shift gearbox 3 is hinged to the left auger connecting plate 4 through the outer shell of the output shaft 14 on the shift gearbox. The right side of the upper frame 1 is hinged to the right auger connecting plate 5 through the upper frame connecting shaft 15. The feeding auger 6 is installed between the left auger connecting plate 4 and the right auger connecting plate 5 through the auger bearing seat 16. The left auger connecting plate 4 and the right auger connecting plate 5 are respectively connected to the picking frame 7 through springs 17.

[0036] The left and right sides of the pickup frame 7 are fixed to the upper frame 1 by rubber shock-absorbing units 8; the spring tooth structure 9 is installed on the pickup frame 7;

[0037] The contour wheel is slidably connected to the swing arm, which is hinged to the pickup frame via a linkage assembly.

[0038] The mounting frame 2 uses a hinged design, allowing the pickup cutter to conform to the terrain. The movable mounting frame 2 facilitates installation with forage harvesters or balers of different interface sizes by simply changing the mounting frame 2, making it suitable for various machine types with a single cutter. The feeding auger 6 floats up and down around the outer shell of the output shaft 14 on the shift box and the upper frame connecting shaft 15. The spring-tooth structure 9 and the pickup frame 7 achieve good vibration damping through the rubber vibration damping units 8 on the left and right sides. By incorporating spring 17, when the amount of feed material is excessive, the feeding auger 6 can rotate upwards, increasing the clearance below the feeding auger 6 and preventing blockage caused by excessive feed.

[0039] Furthermore, the left side of the pickup frame 7 is fixed to the left connecting plate 19, the rear end of the left connecting plate 19 is fixed to the upper frame 1 through the rubber shock absorption unit 8, the right side of the pickup frame 7 is fixed to the upper frame 1 through the rubber shock absorption unit 8, and the spring tooth structure 9 is installed on the pickup frame 7 through the spring tooth beam bearing seat 20.

[0040] Furthermore, the contouring wheel includes a left contouring wheel 10 and a right contouring wheel 11, and the linkage assembly includes a left outer linkage 23, a left inner linkage 24, a right outer linkage 27, and a right inner linkage 28. The left contouring wheel 10 is slidably connected to the left swing arm 22 via a left plum blossom tube 21. The left swing arm 22 is hinged to the pickup frame 7 via the left outer linkage 23 and the left inner linkage 24, respectively. The right contouring wheel 11 is slidably connected to the right swing arm 26 via a right plum blossom tube 25. The right swing arm 26 is hinged to the pickup frame 7 via the right outer linkage 27 and the right inner linkage 28, respectively. The left outer linkage 23 and the left inner linkage 24 are driven by a left linkage cylinder 29, and the right outer linkage 27 and the right inner linkage 28 are driven by a right linkage cylinder 30. The left linkage cylinder 29 is mounted on the left connecting plate 19, and the right linkage cylinder 30 is mounted on the pickup frame 7.

[0041] Furthermore, the rubber damping unit 8 includes an inner square tube connecting frame 81, rubber spring rods 82, and an outer square tube connecting frame 83. The inner square tube connecting frame 81 is disposed inside the outer square tube connecting frame 83, and one end of the inner square tube connecting frame 81 extends to the outside of the outer square tube connecting frame 83. The inner square tube connecting frame 81 is connected to the outer square tube connecting frame 83 through the rubber spring rods 82. There are a total of 4 rubber spring rods 82, which correspond to the four edges of the outer square tube connecting frame 83.

[0042] Furthermore, the rubber damping unit 8 is fixed to the rear of the lower left and lower right sides of the upper frame 1 by bolts.

[0043] Furthermore, the left plum blossom tube 21 moves up and down along the left swing arm 22 and is positioned by a pin, and the right plum blossom tube 25 moves up and down along the right swing arm 26 and is positioned by a pin.

[0044] Furthermore, the left outer connecting rod 23 and the left inner connecting rod 24 are of the same length, the right outer connecting rod 27 and the right inner connecting rod 28 are of the same length, the left connecting rod cylinder 29 is connected to the left outer connecting rod 23, and the right connecting rod cylinder 30 is connected to the right outer connecting rod 27.

[0045] The left outer connecting rod 23 and the left inner connecting rod 24 are hinged to the pickup frame 7 to form a parallelogram structure, and the right outer connecting rod 27 and the right inner connecting rod 28 are hinged to the pickup frame 7 to form a parallelogram structure. When the pickup cutter is working, the left connecting rod cylinder 29 retracts, pulling the left outer connecting rod 23 and the left inner connecting rod 24 parallelograms outward, and the left swing arm 22 drives the left contour wheel 10 to swing completely out of the pickup range; the right connecting rod cylinder 30 retracts, pulling the right outer connecting rod 27 and the right inner connecting rod 28 parallelograms outward, and the right swing arm 26 drives the right contour wheel 11 to swing completely out of the pickup range. After the two contour wheels swing out, the pickup width is not affected, and it is also convenient for the driver to observe the status of the contour wheels.

[0046] Furthermore, the hanging frame 2 is hinged to the upper frame 1 via the hanging rotation shaft 12. The hanging rotation shaft 12 is located at the lower middle position of the hanging frame 2. The upper middle position, the lower left side and the right side of the hanging frame 2 are all hinged to the upper frame 1 via ball joint connecting rod 13.

[0047] By connecting the rotating shaft 12 and the ball joint 13, the connecting frame 2 can rotate in the left and right directions relative to the upper frame 1, which can better adapt to the harvesting state when the land undulates left and right, and reduce the stress on the upper frame.

[0048] Furthermore, the left auger connecting plate 4 is hinged to the left connecting frame 31 of the pressure roller via a bushing, and the right auger connecting plate 5 is hinged to the right connecting frame 32 of the pressure roller via a bushing. The left connecting frame 31 and the right connecting frame 32 of the pressure roller are hinged to the upper front pressure roller 33 via a bushing. The two ends of the upper front pressure roller 33 are respectively connected to the pressure roller cylinder 34, and the pressure roller cylinder 34 is hinged on the left auger connecting plate 4 and the right auger connecting plate 5.

[0049] The height of the front upper pressure roller 33 is adjusted up and down by the pressure roller cylinder 34. At the same time, the front upper pressure roller 33 can also move up and down along with the left auger connecting plate 4 and the right auger connecting plate 5, rotating around the outer shell of the output shaft 14 of the gear shift box and the upper frame connecting shaft 15.

[0050] Furthermore, support rollers 35 are fixed on the upper left and right sides of the picking frame 7, with the left support roller 35 supported on the lower edge of the left auger connecting plate 4 and the right support roller 35 supported on the lower edge of the right auger connecting plate 5.

[0051] When the forage picking cutter of this utility model is working, the power of the system comes from the main body of the silage harvester or baler, and is transmitted to the corner box 92 through the main body drive shaft. The corner box 92 is fixed to the upper frame 1 by bolts, and the corner box 92 transmits to the shift gear box 3 through the universal drive shaft 100. The lower output shaft 99 of the shift gear box transmits to the spring tooth mechanism 9 through sprocket I 93, chain I 94 and sprocket II 95. The upper output shaft 14 of the shift gear box transmits to the feeding auger 6 through sprocket III 96, chain II 97 and sprocket IV 98. The upper output shaft 14 of the shift gear box can realize three-speed switching, outputting different speeds, which is suitable for different feeding amount requirements of the feeding auger 6 and reduces the clogging of the feeding auger 6. The main drive shaft, angle box 92, universal drive shaft 100, sprocket I 93, chain I 94, sprocket II 95, sprocket III 96, chain II 97, sprocket IV 98, lower output shaft of gearbox 99 and upper output shaft of gearbox 14 are existing technologies.

[0052] When the picking-up cutting table is in operation, the left connecting rod cylinder 29 and the right connecting rod cylinder 30 are retracted. The retraction of the left connecting rod cylinder 29 pulls the left outer connecting rod 23 and the left inner connecting rod 24 to swing outward in a parallelogram shape. The left swing arm 22 drives the left contour wheel 10 to swing completely out of the picking range. The retraction of the right connecting rod cylinder 30 pulls the right outer connecting rod 27 and the right inner connecting rod 28 to swing outward in a parallelogram shape. The right swing arm 26 drives the right contour wheel 11 to swing completely out of the picking range, so that the left contour wheel 10 and the right contour wheel 11 can rotate outward. When the picking-up cutting table is moved to another location, the left connecting rod cylinder 29 and the right connecting rod cylinder 30 are extended, so that the left contour wheel 10 and the right contour wheel 11 can rotate inward, which improves the mobility of the table.

Claims

1. A forage harvesting and cutting platform, characterized in that: It includes an upper frame (1), a hanging frame (2), a shift gearbox (3), a left auger connecting plate (4), a right auger connecting plate (5), a feeding auger (6), a picking frame (7), a rubber shock absorption unit (8), a spring tooth structure (9), and a contour wheel; The hanging frame (2) is located on the middle rear side of the upper frame (1), and the hanging frame (2) is hinged to the upper frame (1). The shift gearbox (3) is fixed on the left side of the upper frame (1). The shift gearbox (3) is hinged to the left auger connecting plate (4) through the outer shell of the output shaft (14) on the shift gearbox. The right side of the upper frame (1) is hinged to the right auger connecting plate (5) through the upper frame connecting shaft (15). The feeding auger (6) is installed between the left auger connecting plate (4) and the right auger connecting plate (5) through the auger bearing seat (16). The left auger connecting plate (4) and the right auger connecting plate (5) are respectively connected to the picking frame (7) through springs (17). The left and right sides of the pickup frame (7) are fixed to the upper frame (1) by rubber shock-absorbing units (8); the spring tooth structure (9) is installed on the pickup frame (7); The contour wheel is slidably connected to the swing arm, which is hinged to the pickup frame via a linkage assembly.

2. The forage harvesting and cutting platform according to claim 1, characterized in that: The left side of the pickup frame (7) is fixed to the left connecting plate (19), the rear end of the left connecting plate (19) is fixed to the upper frame (1) through the rubber shock absorption unit (8), the right side of the pickup frame (7) is fixed to the upper frame (1) through the rubber shock absorption unit (8), and the spring tooth structure (9) is installed on the pickup frame (7) through the spring tooth beam bearing seat (20).

3. The forage harvesting and cutting platform according to claim 1, characterized in that: The contouring wheel includes a left contouring wheel (10) and a right contouring wheel (11). The linkage assembly includes a left outer linkage (23), a left inner linkage (24), a right outer linkage (27), and a right inner linkage (28). The left contouring wheel (10) is slidably connected to the left swing arm (22) via a left plum blossom tube (21). The left swing arm (22) is hinged to the pickup frame (7) via the left outer linkage (23) and the left inner linkage (24), respectively. The right contouring wheel (11) is slidably connected to the right plum blossom tube (25). The right swing arm (26) is connected to the right swing arm (26), which is hinged to the pickup frame (7) via the right outer link (27) and the right inner link (28). The left outer link (23) and the left inner link (24) are driven by the left link cylinder (29), and the right outer link (27) and the right inner link (28) are driven by the right link cylinder (30). The left link cylinder (29) is installed on the left connecting plate (19), and the right link cylinder (30) is installed on the pickup frame (7).

4. A forage harvesting and cutting platform according to claim 1 or 2, characterized in that: The rubber shock absorption unit (8) includes an inner square tube connecting frame (81), rubber spring rods (82) and an outer square tube connecting frame (83). The inner square tube connecting frame (81) is located inside the outer square tube connecting frame (83), and one end of the inner square tube connecting frame (81) extends to the outside of the outer square tube connecting frame (83). The inner square tube connecting frame (81) is connected to the outer square tube connecting frame (83) through rubber spring rods (82). There are a total of 4 rubber spring rods (82), which correspond to the four edges of the outer square tube connecting frame (83).

5. A forage harvesting and cutting platform according to claim 1 or 2, characterized in that: The rubber damping unit (8) is fixed to the lower left and lower right rear sides of the upper frame (1) by bolts.

6. A forage harvesting and cutting platform according to claim 3, characterized in that: The left plum blossom tube (21) moves up and down along the left swing arm (22) and is positioned by a pin, while the right plum blossom tube (25) moves up and down along the right swing arm (26) and is positioned by a pin.

7. A forage harvesting and cutting platform according to claim 3, characterized in that: The left outer connecting rod (23) and the left inner connecting rod (24) are of the same length, the right outer connecting rod (27) and the right inner connecting rod (28) are of the same length, the left connecting rod cylinder (29) is connected to the left outer connecting rod (23), and the right connecting rod cylinder (30) is connected to the right outer connecting rod (27).

8. A forage harvesting and cutting platform according to claim 1, characterized in that: The mounting frame (2) is hinged to the upper frame (1) via a mounting rotation shaft (12). The mounting rotation shaft (12) is located at the lower middle position of the mounting frame (2). The upper middle position, the lower left side and the right side of the mounting frame (2) are all hinged to the upper frame (1) via ball joints (13).

9. A forage harvesting and cutting platform according to claim 1, characterized in that: The left auger connecting plate (4) is hinged to the left connecting frame (31) of the pressure roller through a bushing, and the right auger connecting plate (5) is hinged to the right connecting frame (32) of the pressure roller through a bushing. The left connecting frame (31) and the right connecting frame (32) of the pressure roller are hinged to the front upper pressure roller (33) through a bushing. The two ends of the front upper pressure roller (33) are respectively connected to the pressure roller cylinder (34). The pressure roller cylinder (34) is hinged on the left auger connecting plate (4) and the right auger connecting plate (5).

10. A forage harvesting and cutting platform according to claim 1, characterized in that: Support rollers (35) are fixed on the upper left and right sides of the pickup frame (7). The support roller (35) on the left side is supported on the lower edge of the left auger connecting plate (4), and the support roller (35) on the right side is supported on the lower edge of the right auger connecting plate (5).

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