Harvester header height adjusting mechanism, header and harvester

Abstract

The utility model relates to a harvester header height adjusting mechanism, header and harvester, the harvester header height adjusting mechanism comprises a profiling structure, the profiling structure comprises a rotating shaft, a profiling plate and a torsion spring, the torsion spring is fixedly connected with the profiling plate, the profiling plate is provided with a chain, and the chain is connected with the profiling plate. One end of the chain is detachably connected to the profiling plate, and the other end of the chain is detachably connected to a header body; the profiling structure further comprises an angle sensor and a connecting assembly, the angle sensor is used for being installed on a header body, one end of the connecting assembly is fixedly connected to a rotating shaft of the angle sensor, and the other end of the connecting assembly is fixedly connected to the rotating shaft or the other end of the profiling plate. The utility model provides a harvester header height adjusting mechanism, a header and a harvester, which can solve the technical problem that the header height is difficult to adjust in real time in the existing harvesting operation so as to ensure the consistent stubble height as much as possible.

Description

Technical Field

[0001] The utility model relates to the technical field of crop harvesting equipment, in particular to a height adjusting mechanism for a cutter bar of a harvester, a cutter bar and a harvester. Background Art

[0002] When harvesting crops such as rice in paddy fields and muddy fields by a harvester, under the control of a driving instrument, the cross bridge connected to a frame and a cutter bar body connected to the end of the cross bridge are controlled to perform angle adjustment, harvesting and other actions. However, during the harvesting operation, affected by the undulation of the field, it is difficult for a driver to accurately adjust the height of the cutter bar in real time according to the undulation so as to try to ensure the consistency of the stubble height, which affects the harvesting operation. Summary of the Utility Model

[0003] Aiming at the technical problem that it is difficult to adjust the height of the cutter bar in real time to try to ensure the consistency of the stubble height during the existing harvesting operation, the utility model provides a height adjusting mechanism for a cutter bar of a harvester, a cutter bar and a harvester.

[0004] The technical solution of the utility model for solving the above technical problems is as follows:

[0005] In a first aspect, the utility model provides a height adjusting mechanism for a cutter bar of a harvester, which includes a profiling structure for being installed on a cutter bar body. The profiling structure includes a rotary shaft for rotatably connecting to the cutter bar body, a profiling plate with one end fixedly connected to the rotary shaft, and a torsion spring sleeved on the rotary shaft. One end of the torsion spring is used for fixedly connecting to the cutter bar body, and the other end is fixedly connected to the profiling plate. The profiling plate is used for being arranged on the lower side of the cutter bar body. A chain is arranged at the other end of the profiling plate. One end of the chain is detachably connected to the profiling plate, and the other end is used for detachably connecting to the cutter bar body; the profiling structure further includes an angle sensor and a connecting component. The angle sensor is used for being installed on the cutter bar body. One end of the connecting component is fixedly connected to the rotary shaft of the angle sensor, and the other end is fixedly connected to the rotary shaft or the other end of the profiling plate.

[0006] The beneficial effect of the utility model is as follows: Before the operation, control the ground clearance height of the cutter bar body, that is, the predetermined stubble height. At this time, the profiling plate located on the lower side of the cutter bar body contacts the ground and is stressed, causing the chain to be in a slack state. At this time, the angle sensor measures an initial angle value; during the traveling process, when encountering a ground with uneven height, the profiling plate contacts the ground and rotates adaptively, and the slack chain contracts or elongates. Under the connection of the connecting component, the rotary shaft of the angle sensor is driven to rotate by a certain angle value, so as to raise or lower the height of the cutter bar body through this angle value, thereby ensuring the consistency of the stubble height and improving the technical problem that it is difficult to adjust the height of the cutter bar in real time to try to ensure the consistency of the stubble height during the existing harvesting operation.

[0007] On the basis of the above technical solution, the present utility model can also be improved as follows.

[0008] Further, the connection component includes a first transition plate fixedly connected to one end of the angle sensor, a first shaft seat rotatably connected to the other end of the first transition plate at one end, and a support arm rotatably connected to the other end of the first shaft seat at one end, and the other end of the support arm is fixedly connected to the end of the rotary shaft.

[0009] The beneficial effect of adopting the above further solution is that: during the process that the profiling plate contacts the ground and undergoes adaptive rotation, the rotary shaft rotates simultaneously, driving the support arm to rotate around the central axis of the rotary shaft, so that through the transmission of the first shaft seat and the first transition plate, the rotating shaft of the angle sensor rotates, and the angle change is measured.

[0010] Further, the connection component includes an intermediate plate fixedly connected to the other end of the profiling plate at one end and a second transition plate rotatably connected to the other end of the intermediate plate at one end, and the other end of the second transition plate is fixedly connected to the angle sensor.

[0011] The beneficial effect of adopting the above further solution is that: during the process that the profiling plate contacts the ground and undergoes adaptive rotation, it drives the intermediate plate to rotate, and through the transmission of the second transition plate, the rotating shaft of the angle sensor rotates, and the angle change is measured.

[0012] Further, the intermediate plate includes a clamping plate fixedly connected to the other end of the profiling plate at one end, a screw rod rotatably connected to the other end of the clamping plate at one end, and a rod sleeve threadedly connected to the other end of the screw rod at one end, and the other end of the rod sleeve is rotatably connected to the second transition plate.

[0013] The beneficial effect of adopting the above further solution is that: before operation, when adjusting the predetermined cutting height of the cutting table body and measuring the initial angle value by the angle sensor at this time, the initial angle value of the angle sensor can be adjusted by rotating the screw rod to adjust the overall length of the intermediate plate.

[0014] Further, there are two profiling structures, which are respectively used for being installed at the left and right ends of the cutting table body.

[0015] The beneficial effect of adopting the above further solution is that: when the cutting table body operates on a sloping plot, the angle sensors of the profiling structures at both ends can simultaneously identify the ground clearance, preventing the cutting table body from shoveling soil on a sloping ground with a left-right direction.

[0016] Further, at least two profiling plates are arranged in parallel, and the profiling plates are spaced apart from each other.

[0017] The beneficial effects of adopting the above further solution are as follows: at least two profiling plates have a large contact area, are not prone to sinking in muddy fields and paddy fields, and the profiling plates are arranged at intervals. In the case of the same contact area, the weight can be relatively reduced, the cost can be reduced, and it is convenient to replace after wear.

[0018] Further, the profiling plate includes an arc plate and two end plates. One end of one of the end plates is fixedly connected to the rotary shaft, and the other end is detachably connected to one end of the arc plate. The other end of the arc plate is detachably connected to one end of the other end plate, and the other end of the other end plate is detachably connected to the chain.

[0019] The beneficial effects of adopting the above further solution are as follows: the profiling plate is divided into three parts, which is convenient for the separate disassembly, installation and replacement of the corresponding structure, and has a large contact area with the ground, and is not prone to sinking in muddy fields and paddy fields.

[0020] Further, both ends of the rotary shaft are rotatably connected with shaft sleeves, and both of the shaft sleeves are respectively fixedly connected with second shaft seats. Both of the shaft seats are used for detachably connecting to the cutter bar body, and one end of the torsion spring is used for fixedly connecting to at least one of the shaft sleeves.

[0021] The beneficial effects of adopting the above further solution are as follows: so as to realize the installation connection of the rotary shaft and the cutter bar body through the second shaft seat, and utilize the shaft sleeve to realize the rotary installation of the rotary shaft.

[0022] In a second aspect, the present invention provides a cutter bar, including the above-mentioned height adjusting mechanism for a harvester cutter bar, and further including a cutter bar body, and the height adjusting mechanism for a harvester cutter bar is installed on the cutter bar body.

[0023] In a third aspect, the present invention provides a harvester, including the above-mentioned cutter bar. Description of the Drawings

[0024] Figure 1 It is a right view of the cutter bar of the present invention, and the arrow in the figure indicates the traveling direction;

[0025] Figure 2 It is a left view of the cutter bar of the present invention, and the arrow in the figure indicates the traveling direction;

[0026] Figure 3 It is an isometric view of the cutter bar of the present invention from the first perspective, and the left and right in the figure respectively represent the left end and the right end of the cutter bar;

[0027] Figure 4 It is an isometric view of the cutter bar of the present invention from the second perspective, and the left and right in the figure respectively represent the left end and the right end of the cutter bar;

[0028] Figure 5This is the first partial structural schematic diagram of the cutting table of the present utility model. The arrow in the figure indicates the traveling direction, and the chain is shown in a disassembled state;

[0029] Figure 6 This is the second partial structural schematic diagram of the cutting table of the present utility model. The arrow in the figure indicates the traveling direction, and the chain is shown in a disassembled state;

[0030] Figure 7 This is the first state structure diagram of the connection component of the present utility model. The chain is shown in a disassembled state;

[0031] Figure 8 This is the second state structure diagram of the connection component of the present utility model. The chain is shown in a disassembled state;

[0032] Figure 9 This is the right view of the harvester of the present utility model. The arrow in the figure indicates the traveling direction.

[0033] In the attached drawings, the list of components represented by each reference numeral is as follows:

[0034] 1. Cutting table body; 11. Mobile frame; 12. Overbridge; 13. Cutting table oil cylinder; 14. Driving instrument; 15. Swing ring assembly;

[0035] 2. Rotary shaft; 21. Bush; 22. Second shaft seat;

[0036] 3. Profiling plate; 31. Arc plate; 32. End plate; 321. Lapping plate; 33. Plate leaf;

[0037] 4. Torsion spring;

[0038] 5. Chain; 51. Locking connection plate; 52. Pin shaft; 53. Split pin;

[0039] 6. Angle sensor; 61. Controller;

[0040] 7. Connection component; 71. First transition plate; 72. First shaft seat; 73. Support arm; 74. Intermediate plate; 741. Clamping plate; 742. Screw; 743. Rod sleeve; 75. Second transition plate;

[0041] 8. Protective cover. Detailed implementation manners

[0042] The principles and features of the present utility model will be described below with reference to the attached drawings. The examples given are only used to explain the present utility model and are not intended to limit the scope of the present utility model.

[0043] In the first aspect, the present utility model provides a harvester cutting table height adjustment mechanism, as specifically described below.

[0044] Example 1

[0045] As Figures 1 to 6 , a height adjustment mechanism for a combine harvester header includes a profiling structure for mounting on the header body 1. The profiling structure includes a rotary shaft 2 rotatably connected to the header body 1, a profiling plate 3 fixedly connected to one end of the rotary shaft 2, and a torsion spring 4 sleeved on the rotary shaft 2. One end of the torsion spring 4 is fixedly connected to the header body 1, and the other end is fixedly connected to the profiling plate 3. The profiling plate 3 is arranged on the lower side of the header body 1, and a chain 5 is provided at the other end of the profiling plate 3. One end of the chain 5 is detachably connected to the profiling plate 3, and the other end is detachably connected to the header body 1; the profiling structure further includes an angle sensor 6 and a connection assembly 7. The angle sensor 6 is mounted on the header body 1, and one end of the connection assembly 7 is fixedly connected to the rotating shaft of the angle sensor 6, and the other end is fixedly connected to the rotary shaft 2 or the other end of the profiling plate 3.

[0046] The beneficial effect of this embodiment is that before operation, the ground clearance of the header body 1, that is, the predetermined stubble height, is controlled. At this time, the profiling plate 3 located on the lower side of the header body 1 contacts the ground and is stressed, causing the chain 5 to be in a relaxed state. At this time, the angle sensor 6 measures the initial angle value; during the process of traveling, when encountering uneven ground, the profiling plate 3 contacts the ground and rotates adaptively, and the relaxed chain 5 contracts or elongates. Under the connection of the connection assembly 7, the rotating shaft of the angle sensor 6 is driven to rotate by a certain angle value, so as to raise or lower the height of the header body 1 through this angle value, thereby ensuring the consistency of the stubble height and improving the technical problem that it is difficult to adjust the header height in real time to ensure the consistency of the stubble height as much as possible in the existing harvesting operation.

[0047] Among them, it should be noted that both ends of the profiling plate 3 in the overall length direction extend along the moving direction of the header body 1. Figure 1 And Figure 2 The arrow in Figure 3 and Figure 4 represents the moving direction of the header 1, Figure 3 and Figure 4 "Left" in

[0048] represents the left end of the header body 1, Figure 9 and "right" in

[0049] The controller 61 is communicatively connected to the driving instrument 14 of the harvester, so as to transmit information to the driving instrument 14 through the controller 61, and then display the height through the driving instrument 14.

[0050] As an alternative to the above embodiment, the angle sensor 6 can be directly communicatively connected to the driving instrument 14.

[0051] Such as Figures 3 to 8 , based on the above embodiment, two latch connecting plates 51 are fixedly connected to both ends of the chain 5. One end of the two latch connecting plates 51 is connected to the chain 5 through a through hole. The other ends of the two latch connecting plates 51 are simultaneously inserted with a pin shaft 52, and an opening pin 53 is inserted at the end of the pin shaft 52 to achieve locking.

[0052] During specific installation, the other ends of the two latch connecting plates 51 are clamped to the profiling plate 3 or the cutting table body 1, and the pin shaft 52 is made to pass through the profiling plate 3 or the cutting table body 1 at the same time, and then the opening pin 53 is inserted into the pin shaft 52, and the installation of the chain 5 can be achieved.

[0053] Embodiment 2

[0054] Such as Figures 1 to 7 , based on Embodiment 1, the connecting component 7 includes a first transition plate 71 fixedly connected to one end of the angle sensor 6, a first shaft seat 72 rotatably connected to the other end of the first transition plate 71, and a support arm 73 rotatably connected to the other end of the first shaft seat 72. The other end of the support arm 73 is fixedly connected to the end of the rotary shaft 2.

[0055] The beneficial effect of adopting the preferred solution in the above embodiment is that during the process of the profiling plate 3 contacting the ground and undergoing adaptive rotation, the rotary shaft 2 rotates simultaneously, driving the support arm 73 to rotate around the rotary shaft 2 as the central axis, so that through the transmission of the first shaft seat 72 and the first transition plate 71, the rotary shaft of the angle sensor 6 rotates to measure the angle change.

[0056] As a specific solution of this embodiment, such as Figure 2 , Figure 3 and Figure 7 shown, the connecting component 7 is arranged on the side surface of the left end of the cutting table body 1, and the angle sensor 6 of the profiling structure is installed on the side surface of the left end of the cutting table body 1.

[0057] Such as Figure 3 , based on the above embodiment, a protective cover 8 is fixed on the side surface of the left end of the cutting table body 1, and the connecting component 7 and the angle sensor 6 described in this embodiment are both installed in the protective cover 8 to form a protective effect through the protective cover 8 to prevent the crops on the side of the cutting table body 1 from rubbing and damaging it during the process of the cutting table body 1 moving forward.

[0058] Such asFigure 7 , as a specific solution of this embodiment, one end of the first transition plate 71 is fixedly connected to the angle sensor 6 by screws. And both ends of the first shaft seat 72 can be rotatably connected to the first transition plate 71 and the support arm 73 respectively through spherical plain bearings.

[0059] The other end of the support arm 73 is fixedly connected with a sleeve, and one end of the return shaft 2 is inserted into the sleeve. And the inserted end of the sleeve and the return shaft 2 are connected with a limit screw by threads to realize the fixed connection between the support arm 73 and the return shaft 2.

[0060] Embodiment 3

[0061] As Figures 1 to 6 , and Figure 8 , on the basis of Embodiments 1 and 2, the connecting component 7 includes an intermediate plate 74 fixedly connected to one end of the profiling plate 3 and a second transition plate 75 rotatably connected to the other end of the intermediate plate 74. The other end of the second transition plate 75 is fixedly connected to the angle sensor 6.

[0062] The beneficial effect of adopting the preferred solution in the above embodiment is that during the process of the profiling plate 3 contacting the ground and undergoing adaptive rotation, the intermediate plate 74 is driven to rotate. Through the transmission of the second transition plate 75, the rotation shaft of the angle sensor 6 rotates, and the angle change is measured.

[0063] As a specific solution of this embodiment, as Figure 1 , Figure 6 and Figure 8 shown, the connecting component 7 is arranged on the bottom side of the right end of the cutting table body 1, and the angle sensor 6 of the profiling structure is installed on the bottom side of the right end of the cutting table body 1 (instead of the side of the right end of the cutting table body 1), so as to avoid the swing ring assembly 15 (as Figure 6 ) installed on the cutting table body 1.

[0064] That is, by adopting the two setting methods of the connecting component 7 in Embodiment 2 and Embodiment 3, it is convenient to choose arbitrarily according to the installation space of the cutting table body 1.

[0065] As Figure 8 , as a specific solution of the above embodiment, the second transition plate 75 includes two straight plates, and the ends of the two straight plates are detachably connected by a plurality of bolts arranged at intervals. When the bolts are installed at different positions, the overall length of the second transition plate 75 can be changed, which is convenient for installation.

[0066] Embodiment 4

[0067] As Figure 6 and Figure 7, on the basis of Embodiments 1-3, the intermediate plate 74 includes a clamping plate 741 fixedly connected to one end of the profiling plate 3, a screw rod 742 rotatably connected to the other end of the clamping plate 741, and a rod sleeve 743 threadedly connected to the other end of the screw rod 742. The other end of the rod sleeve 743 is rotatably connected to the second transition plate 75.

[0068] The beneficial effect of adopting the preferred solution in the above embodiment is that before operation, when adjusting the predetermined cutting height of the cutting table body 1 and measuring the initial angle value through the angle sensor 6 at this time, the initial angle value of the angle sensor 6 can be adjusted by rotating the screw rod 742 and adjusting the overall length of the intermediate plate 74.

[0069] On the basis of the above embodiment, a limit nut is threadedly connected to the screw rod 742, and the limit nut abuts against the end of the rod sleeve 743 to limit the length of the screw rod 742 entering the rod sleeve 743.

[0070] Embodiment 5

[0071] As Figures 1 to 8 , on the basis of Embodiments 1-4, two profiling structures are provided and are respectively used for being installed at the left and right ends of the cutting table body 1.

[0072] The beneficial effect of adopting the preferred solution in the above embodiment is that when the cutting table body 1 operates on a sloping plot, the angle sensors 6 of the profiling structures at both ends can simultaneously identify the ground clearance, preventing the cutting table body 1 from shoveling soil on a slope ground with a left-right direction.

[0073] As one of the specific solutions of the above embodiment, the connection assemblies 7 of the two profiling structures can both adopt the structure described in Embodiment 2 and be installed accordingly;

[0074] As the second specific solution of the above embodiment, the structure described in Embodiment 3 can also be adopted and be installed accordingly;

[0075] And, as the third specific solution of the above embodiment, the connection assemblies 7 of the two profiling structures respectively adopt the structures described in Embodiment 2 and Embodiment 3 and be installed accordingly.

[0076] Embodiment 6

[0077] As Figures 5 to 8 , on the basis of Embodiments 1-5, at least two profiling plates 3 are arranged in parallel, and the profiling plates 3 are spaced apart from each other.

[0078] The beneficial effect of adopting the preferred solution in the above embodiment is that at least two profiling plates 3 have a large contact area and are not easily sunken in muddy land and paddy fields. Moreover, the profiling plates 3 are spaced apart from each other. In the case of the same contact area, the weight can be relatively reduced, the cost can be reduced, and it is convenient to replace after wear.

[0079] Example 7

[0080] As Figures 5 to 8 , on the basis of Embodiments 1-6, the profiling plate 3 includes an arc plate 31 and two end plates 32. One end of one end plate 32 is fixedly connected to the rotary shaft 2, and the other end is detachably connected to one end of the arc plate 31. The other end of the arc plate 31 is detachably connected to one end of the other end plate 32, and the other end of the other end plate 32 is detachably connected to the chain 5.

[0081] The beneficial effect of adopting the preferred solution in the above embodiment is that the profiling plate 3 is divided into three parts, which is convenient for the separate disassembly, replacement of the corresponding structure, and has a large contact area with the ground, and is not easy to sink in muddy land and paddy fields.

[0082] On the basis of the above Embodiment 3, the other end of the other end plate 32 is also detachably connected to one end of the clamping plate 741 of the connecting assembly 7.

[0083] Among them, in order to realize the fixed connection between one end of one end plate 32 and the rotary shaft 2, a lapping plate 321 is connected by bolts at one end of the one end plate 32. One end of the lapping plate 321 is connected to one end of the one end plate 32 by bolts, and a rolling sleeve is fixed at the other end. The rotary shaft 2 passes through the rolling sleeve, and the detachable connection between the rolling sleeve and the rotary shaft 2 is realized by bolts.

[0084] A plate leaf 33 is fixed at the other end of the other end plate 32. One end of the plate leaf 33 is rotatably connected to the other end of the other end plate 32, and the relative rotation between the plate leaf 33 and the end plate 32 is limited by a limit pin. That is, after connecting the plate leaf 33 and the end plate 32, the insertion of the limit pin is used to prevent the two from rotating relative to each other. In this way, the detachable connection between the plate leaf 33 and the chain 5 or the clamping plate 741 can be realized during installation.

[0085] A through hole is formed through the plate leaf 33.

[0086] On the basis of the above Embodiments 1 and 2, as Figure 7 , the other end of the plate leaf 33 is only connected to the chain 5, and the pin shaft 52 passes through the through hole of the plate leaf 33.

[0087] On the basis of the above Embodiments 1 and 3, as Figure 8 , the other end of the plate leaf 33 is simultaneously connected to the chain 5 and the clamping plate 741, and the two clamping plates 741 clamp the plate leaf 33.

[0088] Example 8

[0089] As Figure 7 and Figure 8, on the basis of Embodiments 1-7, both ends of the rotary shaft 2 are rotatably connected with bushings 21. Both of the two bushings 21 are fixedly connected with second shaft seats 22 respectively. Both of the two second shaft seats 22 are used for detachably connecting to the cutter bar body 1. One end of the torsion spring 4 is used for fixedly connecting to at least one of the bushings 21.

[0090] The beneficial effect of adopting the preferred solution in the above embodiment is to realize the installation and connection of the rotary shaft 2 and the cutter bar body 1 through the second shaft seat 22, and realize the rotary installation of the rotary shaft 2 by using the bushing 21.

[0091] On the basis of the above embodiment, the rotary shaft 2 is rotatably connected to the bushing 21 through a bearing.

[0092] Second, the present utility model provides a cutter bar, as specifically described below.

[0093] Embodiment 9

[0094] As Figures 1 to 9 , this embodiment provides a cutter bar, including a harvester cutter bar height adjustment mechanism as described in Embodiments 1-8, and further including a cutter bar body 1. The harvester cutter bar height adjustment mechanism is installed on the cutter bar body 1.

[0095] Third, the present utility model provides a harvester, as specifically described below.

[0096] Embodiment 10

[0097] As Figure 9 , this embodiment provides a harvester, including the cutter bar described in Embodiment 9, and further including a mobile frame 11, a cross bridge 12 with one end connected to the mobile frame 11, and a cutter bar oil cylinder 13 installed on the mobile frame 11 and with its piston end connected to the cross bridge 12.

[0098] The mobile frame 11 includes a crawler, a chassis and a frame, and is provided with a driving instrument 14 to control the travel and the lifting of the cross bridge 12 through the driving instrument 14.

[0099] The cutter bar body 1 of the cutter bar is installed at the other end of the cross bridge 12, and the cross bridge 12 controls the lifting of the cutter bar body 1 through a swing ring assembly 15.

[0100] During the travel, when encountering a ground with uneven height, the profiling plate 3 contacts the ground and rotates adaptively. The chain 5 in a relaxed state contracts or elongates. Under the connection of the connection assembly 7, it drives the rotary shaft of the angle sensor 6 to rotate by a certain angle value. This rotation value is transmitted to the controller 61. The controller 61 can control the cutter bar oil cylinder 13, so that the cross bridge 12 rises and falls. Then, under the transmission of the swing ring assembly 15, the lifting of the cutter bar body 1 is realized, thereby driving the adjustment of the cutter bar height to try to ensure the consistency of the cutting stubble height.

[0101] On the basis of the above embodiments, an over-bridge angle sensor is provided at one end where the over-bridge 12 is connected to the mobile rack 11 to measure the lifting angle value of the over-bridge 12 in real time.

[0102] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0103] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0104] In the present invention, unless otherwise clearly defined and limited, the terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0105] In the present invention, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "under" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0106] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0107] Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present utility model. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present utility model.

Claims

1. A harvester header height adjustment mechanism, characterized in that: The invention comprises a profiling structure for being installed on a cutting platform body (1), the profiling structure comprising a rotary shaft (2) for being rotatably connected to the cutting platform body (1), a profiling plate (3) having one end fixedly connected to the rotary shaft (2), and a torsion spring (4) sleeved on the rotary shaft (2), one end of the torsion spring (4) being fixedly connected to the cutting platform body (1), and the other end being fixedly connected to the profiling plate (3), the profiling plate (3) being used to be arranged on the lower side of the cutting platform body (1), and the profiling plate (3) being used to be arranged on the lower side of the cutting platform body (1), and the profiling plate (3) being used to be fixedly connected to the cutting platform body (1). The other end of the profile structure is provided with a chain (5), one end of the chain (5) is detachably connected to the profile plate (3), and the other end is used to be detachably connected to the cutting platform body (1); the profile structure also includes an angle sensor (6) and a connecting component (7), the angle sensor (6) is used to be installed on the cutting platform body (1), one end of the connecting component (7) is fixedly connected to the rotating shaft of the angle sensor (6), and the other end is fixedly connected to the rotating shaft (2) or the other end of the profile plate (3).

2. A harvester header height adjustment mechanism according to claim 1, characterized in that: The connecting assembly (7) comprises a first transition plate (71) having one end fixedly connected to the angle sensor (6), a first shaft seat (72) having one end rotatably connected to the other end of the first transition plate (71), and a support arm (73) having one end rotatably connected to the other end of the first shaft seat (72), the other end of the support arm (73) being fixedly connected to the end of the rotary shaft (2).

3. A harvester header height adjustment mechanism according to claim 1, characterized in that: The connecting assembly (7) comprises an intermediate plate (74) having one end fixedly connected to the other end of the contour plate (3) and a second transition plate (75) having one end rotatably connected to the other end of the intermediate plate (74), and the other end of the second transition plate (75) is fixedly connected to the angle sensor (6).

4. A harvester header height adjustment mechanism according to claim 3, characterized in that: The intermediate plate (74) comprises a clamping plate (741) with one end fixedly connected to the other end of the contoured plate (3), a screw rod (742) with one end rotatably connected to the other end of the clamping plate (741), and a rod sleeve (743) with one end threadedly connected to the other end of the screw rod (742), and the other end of the rod sleeve (743) is rotatably connected to the second transition plate (75).

5. A harvester header height adjustment mechanism according to any one of claims 1 to 4, characterized in that: Two profiling structures are provided and are respectively used to be installed at the left and right ends of the cutting platform body (1).

6. A harvester header height adjustment mechanism according to any one of claims 1 to 4, characterized in that: At least two of the profiling plates (3) are arranged in parallel, and the profiling plates (3) are arranged at intervals.

7. A harvester header height adjustment mechanism according to any one of claims 1 to 4, characterized in that: The contoured plate (3) comprises an arc plate (31) and two end plates (32), wherein one end of one end plate (32) is fixedly connected to the rotary shaft (2), and the other end is detachably connected to one end of the arc plate (31), the other end of the arc plate (31) is detachably connected to one end of the other end plate (32), and the other end of the other end plate (32) is detachably connected to the chain (5).

8. A harvester header height adjustment mechanism according to any one of claims 1 to 4, characterized in that: Both ends of the rotary shaft (2) are rotatably connected to shaft sleeves (21), and the two shaft sleeves (21) are respectively fixedly connected to second shaft seats (22), and the two second shaft seats (22) are used for detachably connecting to the cutting platform body (1), and one end of the torsion spring (4) is used for fixedly connecting to at least one of the shaft sleeves (21).

9. A header, characterized in that: It comprises a harvester header height adjustment mechanism as claimed in any one of claims 1 to 8, and also comprises a header body (1), wherein the harvester header height adjustment mechanism is mounted on the header body (1).

10. A harvester, characterized in that: Comprising the header as claimed in claim 9.

Images