Header self-stabilization adjusting device

Abstract

The invention relates to the technical field of agricultural machinery, in particular to a header self-stabilization adjusting device which comprises a header, a hanging frame, a profiling frame, a spring and a pull rod. The first end of the header left frame is rotationally connected with the header left rotating frame in the longitudinal direction; the first end of the header right frame is rotationally connected with the header right frame in the longitudinal direction; the second end of the left header frame is connected with the second end of the right header frame, and a first hanging lug is arranged at the joint; the two ends of the profiling frame are correspondingly connected with the header left frame and the header right frame; arc-shaped hanging rods are arranged at the two ends of the profiling frame; a pair of grooved rollers is arranged at the top end of the hooking frame, and a second hooking lug is arranged at the bottom end of the hooking frame; the arc-shaped hanging rods are partially embedded into the grooved rollers; the two ends of the pull rod are correspondingly hinged to the second hanging lug and the first hanging lug, and a flaring is formed in a hinge hole of the first hanging lug; one end of the spring is connected with the hanging frame, and the other end is connected with the profiling frame; the pair of springs is correspondingly arranged on the two sides of the profiling frame.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural machinery, and in particular to a self-stabilizing adjustment device for a harvesting platform. Background Art

[0002] Most of the existing silage cutters are small silage cutters with narrow width, and they are mostly connected to the main machine feeder in a fixed manner. With the rapid development of animal husbandry in recent years, the planting area of ​​silage feed has increased year by year, and the width of the silage cutter has gradually increased. In order to reduce harvesting losses and protect the parts of the harvester cutter, higher requirements are put forward for the flatness of the forage planting plots. Since it is difficult to directly level the planting plots and the processing time is long, the silage cutter is usually improved.

[0003] The existing patent with publication number CN220068295U discloses a hooking device and a silage machine, wherein a pair of squaring wheels are correspondingly arranged on both sides of the header, and a pair of arc-shaped hooking rods are correspondingly arranged on the feeding device (i.e., the host feeder), and the squaring wheels support the inner arc of the hooking rod, and the squaring wheels can roll along the length direction of the hooking rod. When the host feeder needs to be docked with the header, the squaring wheels are moved to the bottom of the hooking rod and then raised, so that the hooking rod is embedded in the groove of the squaring wheels, so as to realize the rapid docking of the host feeder and the header, and finally the header and the locking mechanism are fixed by the positioning mechanism.

[0004] On the one hand, the patent drives the cutting table to rotate through the rotating shaft to achieve the contour of the uneven planting plot, so as to level the cutting table and adapt to the working environment. However, the rotating shaft needs to be actively driven by the host feeder, which consumes a lot of energy and increases the operating cost.

[0005] On the other hand, the main engine feeder and the cutting table of this patent are fixedly connected by locking pins and guide plates, which makes it impossible for the cutting table to swing along the axis of the rotating shaft. It is difficult to pitch along the axis of the rotating shaft after the cutting table is hung on the main engine feeder, that is, it is difficult to perform pitch compensation adjustment, resulting in low positioning accuracy of the cutting table. Summary of the invention

[0006] 1. Technical issues to be resolved

[0007] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a self-stabilizing adjustment device for a cutting platform, which solves the technical problems that the existing cutting platform has high energy consumption when driven by a host feeder for leveling and that it is difficult for the cutting platform to perform pitch compensation adjustment relative to the host feeder.

[0008] (II) Technical solution

[0009] In order to achieve the above-mentioned purpose, the self-stabilizing adjustment device of the cutting platform of the present invention comprises a cutting platform, a mounting frame, a contour frame, a spring and a pull rod;

[0010] The header comprises a header left frame, a header right frame, a header left rotating frame and a header right rotating frame; the first end of the header left frame is connected to the header left rotating frame for longitudinal rotation; the first end of the header right frame is connected to the header right rotating frame for longitudinal rotation; the second end of the header left frame is connected to the second end of the header right frame, and a first hanging ear is provided at the connection;

[0011] The two ends of the profiling frame are connected to the left frame of the cutting platform and the right frame of the cutting platform in a one-to-one correspondence; arc-shaped hanging rods are arranged on both ends of the profiling frame;

[0012] The top of the hanging frame is provided with a pair of grooved rollers, and the bottom is provided with a second hanging ear; the arc-shaped hanging rod is partially embedded in the grooved rollers so that the hanging frame can swing vertically; the two ends of the pull rod are hinged to the second hanging ear and the first hanging ear one by one, and the hinge hole of the first hanging ear is provided with a flared opening;

[0013] One end of the spring is connected to the hanging frame, and the other end is connected to the contour frame; a pair of springs are correspondingly arranged on both sides of the contour frame.

[0014] Optionally, the mounting frame includes a mounting frame body, and a mounting ear plate, a positioning pin shaft and a clamping member arranged on the back side of the mounting frame body;

[0015] The mounting ear plate is arranged at the top end of the mounting frame; the positioning pin is arranged inside the mounting ear plate; the clamping member is detachably arranged at the bottom end of the mounting frame;

[0016] The grooved roller and the second hanging ear are both arranged on the front side of the hanging frame.

[0017] Optionally, the clamping member includes an L-shaped connecting rod, a rotating shaft and a clamping block;

[0018] The middle part of the L-shaped connecting rod is hinged to the hanging frame; the first end of the L-shaped connecting rod is connected to the rotating shaft;

[0019] The rotating shaft is rotatably connected to the bottom end of the hanging frame; the clamping block is arranged on the rotating shaft; and the second end of the L-shaped connecting rod can drive the clamping block to swing along the vertical direction.

[0020] Optionally, the side of the mounting frame is provided with a bracket, a leg, a positioning member and a safety chain;

[0021] One end of the bracket is connected to the hanging frame, and the other end is connected to the leg along the vertical sliding direction;

[0022] The legs are provided with a plurality of locking holes along the vertical direction, the bracket is provided with a connecting hole, and the positioning member is detachably connected to the locking hole after passing through the connecting hole;

[0023] One end of the safety chain is connected to the bracket, and the other end is connected to the left rotating frame of the cutting platform or the right rotating frame of the cutting platform.

[0024] Optionally, a pair of limit seats are provided on the profiling frame;

[0025] A pair of the limiting seats are correspondingly arranged below the pair of the arc-shaped hanging rods; the limiting seats can limit the sliding path of the grooved roller on the arc-shaped hanging rod.

[0026] Optionally, the header self-stabilizing adjustment device further includes a left transmission box of a tower wheel, a right transmission box of a tower wheel, a support frame and a support roller;

[0027] The left transmission box of the tower wheel is installed on the left frame of the cutting platform; the right transmission box of the tower wheel is installed on the right frame of the cutting platform;

[0028] The left transmission box of the tower pulley and the right transmission box of the tower pulley are both connected to the support frame;

[0029] The support frame is provided with the support roller; the support roller can abut against the front bottom end of the hanging frame.

[0030] Optionally, a pair of supporting rollers are correspondingly arranged at two ends of the supporting frame;

[0031] The intersection of the rotation axes of a pair of the supporting rollers passes through the swing rotation center of the cutting platform.

[0032] Optionally, both ends of the profiling frame are provided with adjustment rods and self-locking nuts;

[0033] The adjusting rod is connected to the spring;

[0034] The self-locking nut is threadedly connected to the adjusting rod, and the self-locking nut abuts against the contour frame.

[0035] Optionally, a cylinder bracket is provided on the left frame of the cutting platform; a cylinder fixing bracket is provided on the left rotating frame of the cutting platform; the cylinder bracket and the cylinder fixing bracket are connected by a folding cylinder; the folding cylinder can drive the left rotating frame of the cutting platform to rotate around the longitudinal direction;

[0036] The right frame of the header and the right rotating frame of the header are mirror-imaged to the left frame of the header and the left rotating frame of the header respectively.

[0037] Optionally, the flared opening in the intersection hole of the first hooking ear is a conical chamfer;

[0038] The small-diameter end of the conical chamfer faces the inner side of the hinge hole, and the large-diameter end of the conical chamfer is away from the inner side of the hinge hole.

[0039] (III) Beneficial effects

[0040] The beneficial effects of the present invention are:

[0041] The header is fixedly connected to the profiling frame, which is then connected to the mounting frame, that is, the arc-shaped mounting rod is mounted on the grooved roller. Through the effective cooperation between the arc-shaped mounting rod and the grooved roller, the header can be leveled by its own weight. In addition, the spring can enhance the leveling performance of the header, offset the friction between the arc-shaped mounting rod and the grooved roller, improve the smoothness of the sliding between the arc-shaped mounting rod and the grooved roller, and thus improve the passive leveling accuracy of the header, realizing the adaptive leveling of the header during operation, and no energy consumption is generated for leveling.

[0042] The mounting frame is not fixedly connected to the bottom end of the cutting platform, but the second mounting ear and the first mounting ear are correspondingly hinged by a pull rod. Both ends of the pull rod are hinged structures, so that the cutting platform can be pitched with a pair of grooved rollers as fulcrums to achieve compensation adjustment of the pitch angle of the cutting platform. At the same time, a flared opening is provided in the hinge hole of the first mounting ear, so that the hinge axis of the pull rod can swing in the flared opening, effectively avoiding interference between the cutting platform and the hinge axis of the pull rod during the leveling process, and improving the reliability of the cutting platform self-stabilization adjustment device.

[0043] An annular groove is provided on the circumferential outer wall of the grooved roller, and the arc-shaped connecting rod is partially embedded in the annular groove, which not only enables the arc-shaped connecting rod to slide on the grooved roller, but also enables the annular groove to limit the longitudinal position of the arc-shaped connecting rod, thereby improving the stability of the arc-shaped connecting rod rotating in the annular groove when the cutting platform is pitched. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 It is a structural schematic diagram of the front side of the header self-stabilizing adjustment device of the present invention;

[0045] Figure 2 It is a structural schematic diagram of the back side of the cutting platform self-stabilizing adjustment device of the present invention;

[0046] Figure 3 It is a structural schematic diagram of the front side of the mounting frame of the present invention;

[0047] Figure 4 It is a structural schematic diagram of the back side of the mounting frame of the present invention;

[0048] Figure 5 It is a structural schematic diagram of the profiling frame of the present invention;

[0049] Figure 6 It is a structural schematic diagram of the support frame of the present invention;

[0050] Figure 7 It is a schematic diagram of the structure of the header of the present invention in a folded state.

[0051] [Description of Reference Numerals]

[0052] 1: mounting frame; 1-1: mounting ear plate; 1-2: positioning pin; 1-3: L-shaped connecting rod; 1-4: clamping block; 1-5: grooved roller; 1-6: lower cross beam; 1-7: second mounting ear; 1-8: mounting hole; 1-9: first fixing seat; 1-10: bracket;

[0053] 2: contour frame; 2-1: arc-shaped hanging rod; 2-2: connecting plate; 2-3: limit seat;

[0054] 3: Left rotating frame of cutting platform; 3-1: Cylinder fixing frame; 3-2: Second fixing seat;

[0055] 4: Cutting table right rotation frame;

[0056] 5: Left frame of cutting platform; 5-1: Cylinder bracket; 5-2: First mounting ear;

[0057] 6: Right frame of cutting platform;

[0058] 7: Folding cylinder;

[0059] 8: Left transmission box of tower pulley;

[0060] 9: right transmission box of tower pulley;

[0061] 10: support frame; 10-1: support roller;

[0062] 11: Spring;

[0063] 12: Pull rod;

[0064] 13: Safety chain;

[0065] 14: Leg; 14-1: Locking hole;

[0066] 15: Rotation axis;

[0067] 16: Adjusting rod; 16-1: Self-locking nut. DETAILED DESCRIPTION

[0068] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below through specific implementation modes in conjunction with the accompanying drawings.

[0069] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0070] In addition, in the present invention, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0071] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; "connection" can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0072] See also Figures 1 to 5 The present invention provides a self-stabilizing adjustment device for a cutting platform, which comprises a cutting platform, a mounting frame 1, a profiling frame 2, a spring 11 and a pull rod 12; the cutting platform comprises a left frame 5 for cutting platform, a right frame 6 for cutting platform, a left rotating frame 3 for cutting platform and a right rotating frame 4 for cutting platform; the first end of the left frame 5 for cutting platform is connected to the left rotating frame 3 for cutting platform for rotation around a longitudinal direction, and the longitudinal direction is the axial direction of the rotating shaft; the first end of the right frame 6 for cutting platform is connected to the right rotating frame 4 for cutting platform for rotation around a longitudinal direction; the second end of the left frame 5 for cutting platform is connected to the second end of the right frame 6 for cutting platform, and a first mounting ear 5-2 is arranged at the connection; both ends of the profiling frame 2 are provided with connecting plates 2-2, and a pair of connecting plates 2-2 are connected one by one Correspondingly connected to the left frame 5 and the right frame 6 of the cutting platform; arc-shaped hanging rods 2-1 are arranged on both ends of the profiling frame 2; a pair of grooved rollers 1-5 are arranged at the top of the hanging frame 1, and a second hanging ear 1-7 is arranged at the bottom; the arc-shaped hanging rod 2-1 is partially embedded in the grooved roller 1-5, so that the hanging frame 1 can swing in the vertical direction, that is, the height direction; the two ends of the pull rod 12 are hinged to the second hanging ear 1-7 and the first hanging ear 5-2 one by one, and a flare is opened in the hinge hole of the first hanging ear 5-2; one end of the spring 11 is connected to the hanging frame 1, and the other end is connected to the profiling frame 2; a pair of springs 11 are correspondingly arranged on both sides of the profiling frame 2.

[0073] In this embodiment, the self-stabilizing adjustment device of the cutting platform is integrated into the forage harvester. The spring 11 is a tension spring. The left frame 5 of the cutting platform corresponds to the right frame 6 of the cutting platform in a mirror-like manner, and the left rotating frame 3 of the cutting platform corresponds to the right rotating frame 4 of the cutting platform in a mirror-like manner. The left frame 5 of the cutting platform and the right frame 6 of the cutting platform are fixedly connected by a flange, and the first hanging ear 5-2 is integrally formed on the flange. The flaring is an expansion opening on both sides of the hinge hole, and the hinge shaft and the hinge hole are clearance-matched, so that the hinge shaft can swing with the cutting platform in the hinge hole and be limited by the flaring. The left and right frames of the cutting platform and the left and right rotating frames of the cutting platform are the basic frame structure of the cutting platform, on which transmission and harvesting devices for forage harvesting are respectively provided.

[0074] The cutting table is fixedly connected to the profiling frame 2, and the profiling frame 2 is then mounted on the mounting frame 1, that is, the arc-shaped mounting rod 2-1 is mounted on the grooved roller 1-5, and the cutting table can be leveled by its own weight through the effective cooperation between the arc-shaped mounting rod 2-1 and the grooved roller 1-5. In addition, the spring 11 can enhance the leveling performance of the cutting table, offset the friction between the arc-shaped mounting rod 2-1 and the grooved roller 1-5, and improve the smoothness of the sliding of the arc-shaped mounting rod 2-1 and the grooved roller 1-5, thereby improving the passive leveling accuracy of the cutting table, realizing the adaptive leveling of the cutting table during the operation, and no energy consumption is generated for leveling.

[0075] Compared with the existing harvesters, the mounting frame 1 is not fixedly connected to the bottom end of the cutting table, but the second mounting ear 1-7 and the first mounting ear 5-2 are correspondingly hinged by the pull rod 12. Both ends of the pull rod 12 are hinged structures, so that the cutting table can be pitched with a pair of grooved rollers 1-5 as fulcrums, so as to achieve compensation adjustment of the pitch angle of the cutting table. At the same time, a flared opening is provided in the hinge hole of the first mounting ear 5-2, so that the hinge shaft of the pull rod 12 can swing in the flared opening, effectively avoiding interference between the cutting table and the hinge shaft of the pull rod 12 during the leveling process, and improving the reliability of the self-stabilizing adjustment device of the cutting table.

[0076] An annular groove is provided on the circumferential outer wall of the grooved roller 1-5, and the arc-shaped connecting rod 2-1 is partially embedded in the annular groove, which not only enables the arc-shaped connecting rod 2-1 to slide on the grooved roller 1-5, but also enables the annular groove to longitudinally limit the arc-shaped connecting rod 2-1, thereby improving the stability of the arc-shaped connecting rod 2-1 rotating in the annular groove when the cutting platform is pitched.

[0077] Furthermore, the mounting frame 1 includes a mounting frame body, and a mounting ear plate 1-1, a positioning pin shaft 1-2 and a clamping piece arranged on the back of the mounting frame body; the mounting ear plate 1-1 is arranged at the top of the mounting frame body; the positioning pin shaft 1-2 is arranged inside the mounting ear plate 1-1; the clamping piece is detachably arranged at the bottom of the mounting frame body; the grooved roller 1-5 and the second mounting ear 1-7 are both arranged on the front of the mounting frame body. Specifically, see Figure 3A lower crossbeam 1-6 is provided in the middle and lower part of the mounting frame, and a second mounting ear 1-7 is provided on the front of the lower crossbeam 1-6 for being hinged to the pull rod 12; and the front of the lower crossbeam 1-6 can abut against the cutting platform to limit the pitch angle of the cutting platform; see Figure 4 , the back clamping piece of the lower crossbeam 1-6, the clamping piece can be a clamping block or a clamping plate, fixed by screws or pins to hold the lower fixed shaft of the host feeder tightly, so as to realize the fixed positioning of the mounting frame 1 and the lower side of the host feeder. An upper crossbeam is arranged in the middle and upper part of the mounting frame body, and a grooved roller 1-5 is arranged on the front of the upper crossbeam; a mounting ear plate 1-1 is arranged on the back of the upper crossbeam, and the mounting ear plate 1-1 and the positioning pin shaft 1-2 are used for fixing and positioning with the upper side of the host feeder. A pair of brackets 1-10 are correspondingly arranged on the two side surfaces of the mounting frame body. The front, back and side surfaces of the mounting frame 1 are correspondingly installed with components, with a compact structure and high integration.

[0078] Secondly, the clamping part includes an L-shaped connecting rod 1-3, a rotating shaft and a clamping block 1-4; the middle part of the L-shaped connecting rod 1-3 is hinged with the hanging frame; the first end of the L-shaped connecting rod 1-3 is connected with the rotating shaft; the rotating shaft is rotatably connected to the bottom end of the hanging frame; the clamping block 1-4 is arranged on the rotating shaft, and the size and shape of the clamping block 1-4 are adapted to the size and shape of the fixed shaft at the lower side of the main machine feeder; the second end of the L-shaped connecting rod 1-3 can drive the clamping block 1-4 to swing vertically. In this embodiment, the L-shaped connecting rod 1-3 is driven to rotate around the hinge axis with the hanging frame by an external driver, and the L-shaped connecting rod 1-3 further drives the rotating shaft to rotate, and the clamping block 1-4 pitches vertically to achieve locking or unlocking of the fixed shaft at the lower side of the main machine feeder. Compared with the method of setting the card connector as a card block, this embodiment can realize the automatic opening and closing of the card connector, and then realize the automatic locking or unlocking of the fixed shaft on the lower side of the main feeder, thereby improving the disassembly and assembly efficiency of the main feeder and the hanging frame 1, and then improving the work efficiency.

[0079] In addition, a bracket 1-10, a leg 14, a positioning member and a safety chain 13 are arranged on the side of the mounting frame; one end of the bracket 1-10 is connected to the mounting frame, and the other end is connected to the leg 14 in a vertical sliding manner; a plurality of locking holes 14-1 are vertically provided on the leg 14, and a connecting hole is provided on the bracket 1-10, and the positioning member is detachably connected to the locking hole 14-1 after passing through the connecting hole; one end of the safety chain 13 is connected to the bracket 1-10, and the other end is connected to the second fixing seat 3-2 on the left rotating frame 3 of the cutting platform or the right rotating frame 4 of the cutting platform. Specifically, the positioning member can be a screw or a pin. The bracket 1-10 includes a welded sleeve and a connecting plate; the two ends of the connecting plate are connected to the sleeve and the mounting frame correspondingly; a mounting hole 1-8 connected to the spring 11 is arranged on the connecting plate; the sleeve is sleeved on the leg 14, and the two are connected in a vertical sliding manner, and the sleeve is provided with a first fixing seat 1-9 connected to the safety chain 13. When the header is repaired or separated from the main machine feeder, the legs 14 can be adjusted to a suitable length to facilitate the separation of the header from the main machine feeder. The setting requirements of the safety chain 13 are that the header is in a relaxed state when it is unfolded and in a tensioned state after the header is folded, that is, the safety chain is loose when the header is unfolded, and the safety chain 13 does not affect the unfolding of the header; after the header is folded, the safety chain 13 is tightened to increase the stability of the header after it is folded.

[0080] See again Figure 5 A pair of limit seats 2-3 are provided on the profiling frame 2; the pair of limit seats 2-3 are correspondingly provided below the pair of arc-shaped hooking rods 2-1; the limit seats 2-3 can limit the sliding path of the grooved roller 1-5 on the arc-shaped hooking rod 2-1. The limit seats 2-3 are used to limit the left and right swing angles of the arc-shaped hooking rod 2-1 on the grooved roller 1-5 after the cutting platform is hooked, so as to prevent the arc-shaped hooking rod 2-1 from falling out of the grooved roller 1-5, thereby improving the reliability of the cutting platform self-stabilizing adjustment device.

[0081] like Figure 1 and Figure 6 As shown, the cutting platform self-stabilizing adjustment device also includes a left transmission box 8 of the tower wheel, a right transmission box 9 of the tower wheel, a support frame 10 and a support roller 10-1; the left transmission box 8 of the tower wheel is installed on the left frame 5 of the cutting platform; the right transmission box 9 of the tower wheel is installed on the right frame 6 of the cutting platform; the left transmission box 8 of the tower wheel and the right transmission box 9 of the tower wheel are both connected to the support frame 10; the support roller 10-1 is provided on the support frame 10; the support roller 10-1 can abut against the front bottom end of the mounting frame 1. In this embodiment, the left transmission box 8 of the tower wheel and the right transmission box 9 of the tower wheel are both connected to the support frame 10, which improves the integration of the tower wheel transmission box, the support frame 10 and the cutting platform. Of course, the support frame 10 can also be directly installed on the left frame 5 of the cutting platform and the right frame 6 of the cutting platform. The support roller 10-1 can abut against the front of the lower crossbeam 1-6, and the support roller 10-1 rolls on the lower crossbeam 1-6, which effectively reduces the friction between the cutting platform and the mounting frame 1 during the leveling process.

[0082] Secondly, a pair of support rollers 10-1 are correspondingly arranged at both ends of the support frame 10; the intersection of the rotation axes of the pair of support rollers 10-1 passes through the swing rotation center of the cutting platform. The support roller 10-1 can be pressed and contacted with the lower crossbeam 1-6 by the weight of the cutting platform. If the intersection is not concentric with the swing rotation center, relative sliding will occur between the support roller 10-1 and the lower crossbeam 1-6 during the leveling process of the cutting platform, which may easily cause wear of the support roller 10-1. Therefore, the intersection of the rotation axes of the pair of support rollers 10-1 is overlapped with the left and right swing rotation center of the cutting platform in the longitudinal direction, so that the support roller 10-1 can roll around the rotation center, thereby increasing the service life of the support roller 10-1.

[0083] In addition, an adjustment rod 16 and a self-locking nut 16-1 are provided at both ends of the profiling frame 2; the adjustment rod 16 is connected to the spring 11; the self-locking nut 16-1 is threadedly connected to the adjustment rod 16, and the self-locking nut 16-1 abuts against the profiling frame 2. Specifically, the length of the adjustment rod 16 is set according to actual needs, and the length of the adjustment rod 16 is adjusted and fixed by the self-locking nut 16-1, thereby adjusting the tension length of the spring 11, and the balance force between the cutting platform and the mounting frame 1 can be set. When the front end of the cutting platform contacts the ground due to terrain and other reasons, resulting in unbalanced force on the left and right sides, the spring 11 here can passively adjust the left and right heights of the cutting platform according to the force, and provide a rebound force to the cutting platform when the unbalanced force disappears to reset the cutting platform to the left and right level.

[0084] like Figure 7 As shown, a cylinder bracket 5-1 is provided on the left frame 5 of the cutting platform; a cylinder fixing bracket 3-1 is provided on the left rotating frame 3 of the cutting platform; the cylinder bracket 5-1 and the cylinder fixing bracket 3-1 are connected by a folding cylinder 7; the folding cylinder 7 can drive the left rotating frame 3 of the cutting platform to rotate longitudinally; the right frame 6 of the cutting platform and the right rotating frame 4 of the cutting platform are mirror-set corresponding to the left frame 5 of the cutting platform and the left rotating frame 3 of the cutting platform, respectively. The folding and unfolding of the left rotating frame 3 of the cutting platform and the right rotating frame 4 of the cutting platform are realized by controlling a pair of folding cylinders 7. The safety chain 13 is tightened after the cutting platform is folded, which improves the stability of the folded cutting platform during movement.

[0085] In addition, the expansion opening in the intersection hole of the first hanging ear 5-2 is a conical chamfer; the small diameter end of the conical chamfer faces the inner side of the hinge hole, and the large diameter end of the conical chamfer is away from the inner side of the hinge hole. Specifically, the two conical chamfers are correspondingly arranged on both sides of the hinge hole, so that the hinge hole as a whole is in the shape of a yo-yo ball. When the first hanging ear 5-2 swings vertically with the cutting platform, the conical chamfer can effectively avoid the air between the hinge shaft and the cutting platform, avoiding interference with the hinge shaft during the leveling process of the cutting platform, thereby improving the reliability of the leveling process of the cutting platform self-stabilizing adjustment device.

[0086] It should be understood that the above description of the specific embodiments of the present invention is only for illustrating the technical route and features of the present invention, and its purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly, but the present invention is not limited to the above specific implementation methods. Any changes or modifications made within the scope of the claims of the present invention should be included in the protection scope of the present invention.

Claims

1. A self-stabilizing adjustment device for a header, characterized in that: The cutting platform self-stabilizing adjustment device comprises a cutting platform, a mounting frame (1), a contour frame (2), a spring (11) and a pull rod (12); The cutting platform comprises a left frame (5), a right frame (6), a left rotating frame (3) and a right rotating frame (4); the first end of the left frame (5) is connected to the left rotating frame (3) for longitudinal rotation; the first end of the right frame (6) is connected to the right rotating frame (4) for longitudinal rotation; the second end of the left frame (5) is connected to the second end of the right frame (6), and a first hooking ear (5-2) is provided at the connection; The two ends of the profiling frame (2) are connected to the left frame (5) and the right frame (6) of the cutting platform in a one-to-one correspondence; arc-shaped hanging rods (2-1) are arranged on both ends of the profiling frame (2); The top of the hanging frame (1) is provided with a pair of grooved rollers (1-5), and the bottom is provided with a second hanging ear (1-7); the arc-shaped hanging rod (2-1) is partially embedded in the grooved roller (1-5) so that the hanging frame (1) can swing in the vertical direction; the two ends of the pull rod (12) are hinged to the second hanging ear (1-7) and the first hanging ear (5-2) in a one-to-one correspondence, and a flared opening is provided in the hinge hole of the first hanging ear (5-2); One end of the spring (11) is connected to the hanging frame (1), and the other end is connected to the contour frame (2); a pair of springs (11) are correspondingly arranged on both sides of the contour frame (2).

2. The header self-stabilizing adjustment device according to claim 1, characterized in that: The mounting frame (1) comprises a mounting frame body, and a mounting ear plate (1-1), a positioning pin shaft (1-2) and a clamping member arranged on the back side of the mounting frame body; The hanging ear plate (1-1) is arranged at the top end of the hanging frame; the positioning pin shaft (1-2) is arranged inside the hanging ear plate (1-1); the clamping piece is detachably arranged at the bottom end of the hanging frame; The grooved roller (1-5) and the second hanging ear (1-7) are both arranged on the front side of the hanging frame.

3. The header self-stabilizing adjustment device according to claim 2, characterized in that: The clamping member comprises an L-shaped connecting rod (1-3), a rotating shaft and a clamping block (1-4); The middle part of the L-shaped connecting rod (1-3) is hinged to the hanging frame; the first end of the L-shaped connecting rod (1-3) is connected to the rotating shaft; The rotating shaft is rotatably connected to the bottom end of the hanging frame; the clamping block (1-4) is arranged on the rotating shaft; and the second end of the L-shaped connecting rod (1-3) can drive the clamping block (1-4) to swing along the vertical direction.

4. The header self-stabilizing adjustment device according to claim 2, characterized in that: The side of the hanging frame is provided with a bracket (1-10), a leg (14), a positioning piece and a safety chain (13); One end of the bracket (1-10) is connected to the hanging frame, and the other end is connected to the support leg (14) in a vertical sliding manner; The supporting leg (14) is provided with a plurality of locking holes (14-1) along the vertical direction, the bracket (1-10) is provided with a connecting hole, and the positioning member is detachably connected to the locking hole (14-1) after passing through the connecting hole; One end of the safety chain (13) is connected to the bracket (1-10), and the other end is connected to the left-hand rotating frame (3) of the cutting platform or the right-hand rotating frame (4) of the cutting platform.

5. The header self-stabilizing adjustment device according to any one of claims 1 to 4, characterized in that: A pair of limiting seats (2-3) are arranged on the profiling frame (2); A pair of the limiting seats (2-3) are correspondingly arranged below a pair of the arc-shaped hanging rods (2-1); the limiting seats (2-3) can limit the sliding path of the grooved roller (1-5) on the arc-shaped hanging rod (2-1).

6. The header self-stabilizing adjustment device according to any one of claims 1 to 4, characterized in that: The cutting platform self-stabilizing adjustment device also includes a left tower wheel transmission box (8), a right tower wheel transmission box (9), a support frame (10) and a support roller (10-1); The left transmission box (8) of the step pulley is installed on the left frame (5) of the cutting platform; the right transmission box (9) of the step pulley is installed on the right frame (6) of the cutting platform; The left transmission box (8) of the step pulley and the right transmission box (9) of the step pulley are both connected to the support frame (10); The support frame (10) is provided with the support roller (10-1); the support roller (10-1) can abut against the front bottom end of the hanging frame (1).

7. The header self-stabilizing adjustment device according to claim 6, characterized in that: A pair of supporting rollers (10-1) are correspondingly arranged at two ends of the supporting frame (10); The intersection of the rotation axes of a pair of supporting rollers (10-1) passes through the swing rotation center of the cutting platform.

8. The header self-stabilizing adjustment device according to any one of claims 1 to 4, characterized in that: Both ends of the profiling frame (2) are provided with an adjusting rod (16) and a self-locking nut (16-1); The adjusting rod (16) is connected to the spring (11); The self-locking nut (16-1) is threadedly connected to the adjusting rod (16), and the self-locking nut (16-1) abuts against the contour frame (2).

9. The header self-stabilizing adjustment device according to any one of claims 1 to 4, characterized in that: The left frame (5) of the cutting platform is provided with a cylinder support (5-1); the left rotating frame (3) of the cutting platform is provided with a cylinder fixing frame (3-1); the cylinder support (5-1) and the cylinder fixing frame (3-1) are connected via a folding cylinder (7); the folding cylinder (7) can drive the left rotating frame (3) of the cutting platform to rotate around the longitudinal direction; The cutting platform right frame (6) and the cutting platform right rotating frame (4) are mirror-imaged to correspond to the cutting platform left frame (5) and the cutting platform left rotating frame (3) respectively.

10. The header self-stabilizing adjustment device according to any one of claims 1 to 4, characterized in that: The expanded opening in the connecting hole of the first hooking ear (5-2) is a conical chamfer; The small-diameter end of the conical chamfer faces the inner side of the hinge hole, and the large-diameter end of the conical chamfer is away from the inner side of the hinge hole.

Images