Profiling detection device, profiling adjustment system and forage harvester

Abstract

The application relates to a profiling detection device, a profiling adjustment system and a forage harvester. The profiling detection device comprises a mounting piece and a profiling detection assembly. The mounting piece is used for matching with a header. The profiling detection assembly comprises a profiling rod, a connecting piece and at least two profiling wheels. One end of the profiling rod is slidably connected with the mounting piece, and the other end of the profiling rod, which is away from the mounting piece, is rotationally connected with the connecting piece through a rotating shaft. All the profiling wheels are rotationally matched with one side of the connecting piece, which is away from the profiling rod, and all the profiling wheels are arranged side by side along the advancing direction of the forage harvester. All the profiling wheels can drive the connecting piece to rotate relative to the profiling rod along with the change of the ground slope, and all the profiling wheels can drive the connecting piece to move along the gravity direction along with the change of the ground height, so that the profiling rod slides along the gravity direction relative to the mounting piece. The application can obtain the change of the terrain of the forage harvester in the advancing process in real time, so that the position relationship between the header and the ground can be correspondingly adjusted, and the uniform stubble height of the ground vegetation can be realized.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of forage harvester, in particular to a profiling detection device, a profiling adjustment system and a forage harvester. BACKGROUND

[0002] Grassland resources are important strategic resources in China, and the development of animal husbandry cannot be separated from the improvement of the production and supply level of forage. Vigorously developing and utilizing forage resources is an important strategic measure to realize the balanced development of grain, feed and forage under the new situation in China. At present, the forage harvester on the market has poor adaptability to complex terrain and landform, poor operation quality and low reliability. SUMMARY

[0003] Therefore, it is necessary to provide a profiling detection device, a profiling adjustment system and a forage harvester to solve the problem of improving the adaptability of the forage harvester to complex terrain and landform.

[0004] A profiling detection device is used for a forage harvester, and is respectively connected to opposite ends of a header. The profiling detection device comprises:

[0005] a mounting member for connecting with the header; and

[0006] a profiling detection assembly comprising a profiling rod, a connecting member and at least two profiling wheels, one end of the profiling rod is slidingly connected with the mounting member, the other end of the profiling rod away from the mounting member is rotationally connected with the connecting member through a rotating shaft, all the profiling wheels are rotationally connected to one side of the connecting member away from the profiling rod, and all the profiling wheels are arranged side by side along the running direction of the forage harvester;

[0007] wherein all the profiling wheels roll along the ground, and all the profiling wheels can drive the connecting member to rotate relative to the profiling rod following the change of the ground slope, and can drive the connecting member to move along the gravity direction following the change of the ground height, so that the profiling rod slides along the gravity direction relative to the mounting member.

[0008] In one embodiment, the connecting member comprises two triangular plates arranged at intervals, the two triangular plates are identical and the angles between them are aligned with each other, the profiling rod is rotationally connected between the same angle of the two triangular plates, and all the profiling wheels are arranged side by side on the side common to the other two angles.

[0009] In one embodiment, the connecting member further comprises two limiting blocks connected between the two triangular plates, the two limiting blocks are respectively arranged on both sides of the profiling rod along the running direction of the forage harvester and are spaced apart from the profiling rod.

[0010] In one of the embodiments, the two triangular plates are isosceles triangular plates, the profiling rod is rotatably connected between the apex angles of the two isosceles triangular plates, and the axis of the profiling rod coincides with the angle bisector of the apex angle; one of the two limiting blocks is connected between two adjacent sides of the two isosceles triangular plates, and the other limiting block is connected between the other two adjacent sides of the two isosceles triangular plates.

[0011] In one of the embodiments, the profiling wheel is two, and the two profiling wheels are rotatably connected between the two isosceles triangular plates and are respectively located at the two base angles of the two isosceles triangular plates.

[0012] In one of the embodiments, the profiling adjusting system further comprises a sliding assembly, the sliding assembly comprises a sliding rail and a sliding block, the sliding rail extends along the direction of gravity and is arranged on the mounting member, and the sliding block is connected to one end of the profiling rod away from the connecting member and movably arranged on the guide rail.

[0013] In one of the embodiments, the profiling adjusting system further comprises two buffer assemblies, the two buffer assemblies are respectively arranged at opposite ends of the guide rail along the direction of gravity and used for abutting against the sliding block to limit the movement of the sliding block in the guide rail along the direction of gravity.

[0014] In one of the embodiments, each of the buffer assemblies comprises a buffer member, a fixing member and an elastic member, the elastic member is connected between the buffer member and the fixing member in a deformable manner, the fixing member is fixedly connected with the guide rail, the buffer member is located on the side of the fixing member facing the sliding block and is movable relative to the fixing member.

[0015] A profiling adjusting system, comprising:

[0016] The profiling detection device in the foregoing embodiments;

[0017] An angle detection device, electrically connected with the rotating shaft and used for detecting the rotating angle of the rotating shaft in real time;

[0018] A displacement detection device, electrically connected with the sliding block and used for detecting the moving distance of the sliding block in real time;

[0019] An angle adjusting device, used for controlling the horizontal level of the cutting table relative to the ground according to the rotating angle; and

[0020] A height adjusting device, used for controlling the distance of the cutting table along the direction of gravity relative to the ground according to the rotating angle.

[0021] A forage harvester, comprising a cutting table and the profiling adjusting system in the foregoing embodiments, and the profiling adjusting system is connected with the cutting table.

[0022] The profile detection device, the profile adjusting system and the forage harvester, the profile detection device comprises a mounting part and a profile detection assembly. The mounting part is used for being connected with the header. The profile detection assembly comprises a profile rod, a connecting part and at least two profile wheels. One end of the profile rod is connected with the mounting part in a sliding mode, and the other end of the profile rod, which is away from the mounting part, is connected with the connecting part in a rotating mode through a rotating shaft. All the profile wheels are rotatably connected with the connecting part on the side of the connecting part which is away from the profile rod, and all the profile wheels are arranged side by side along the advancing direction of the forage harvester. Wherein, all the profile wheels roll along the ground, and all the profile wheels can drive the connecting part to rotate relative to the profile rod along with the change of the slope of the ground, and all the profile wheels can drive the connecting part to move along the gravity direction along with the change of the height of the ground, so that the profile rod slides along the gravity direction relative to the mounting part. In the profile detection device provided by the embodiment of the present application, the change of the slope of the ground in the advancing process of the forage harvester can be determined according to the angle of the rotation of the connecting part relative to the profile rod, and the change of the height of the ground in the advancing process of the forage harvester can be determined according to the distance of the sliding of the profile rod along the gravity direction relative to the mounting part. In this way, the change of the terrain in the advancing process of the forage harvester can be obtained in real time, so that the position relationship between the header and the ground can be adjusted correspondingly, so as to realize the uniform stubble of the ground vegetation. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a schematic diagram of the device of the forage harvester in the present application.

[0024] Figure 2 It is a schematic diagram of the profile adjusting system in the present application.

[0025] Figure 3 It is a schematic diagram of the profile detection assembly in the present application.

[0026] Figure 4 It is a schematic diagram of the assembly of the sliding assembly and the profile rod in the present application.

[0027] REFERENCE NUMERALS

[0028] The forage harvester 100;

[0029] The profile detection device 200;

[0030] The mounting part 21;

[0031] The profile detection assembly 22; the profile rod 221; the connecting part 222; the triangular plate 2221; the profile wheel 223; the rotating shaft 224; the limiting block 225;

[0032] The sliding assembly 23; the sliding rail 231; the sliding block 232;

[0033] The buffer assembly 24; the buffer part 241; the fixing part 242; the elastic part 243;

[0034] Profiling adjustment system 300;

[0035] Angle detection device 31; displacement detection device 32;

[0036] Header 400. DETAILED DESCRIPTION

[0037] In order to make the above objectives, features and advantages of the present application more apparent, the specific embodiments of the present application will be described in detail below with the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a number of different manners, which are different from those described herein, and it is understood that similar improvements can be made by those skilled in the art without departing from the spirit and scope of the present application, and therefore the present application is not limited to the specific embodiments disclosed below.

[0038] In the description of the present application, it should be understood that if these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the components or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0039] In addition, if these terms "first", "second" appear, these terms are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features referred to. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, if the term "multiple" appears, the meaning of "multiple" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0040] In the present application, unless otherwise specifically defined and limited, if the terms "mounting", "connecting", "connecting", "fixing" and the like appear, these terms should be interpreted broadly. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0041] In the present application, unless specifically defined otherwise, if there is a description of a first feature on or above or below a second feature, it can mean 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 can be above or above or above the second feature, which can be directly above or obliquely above the second feature, or only means that the first feature is higher than the second feature in horizontal height. The first feature can be below or below or below the second feature, which can be directly below or obliquely below the second feature, or only means that the first feature is lower than the second feature in horizontal height.

[0042] It should be noted that if an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or there can be an intermediate element. If an element is considered to be "connected" to another element, it can be directly connected to the other element or there can be an intermediate element. If present, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in the present application are only for illustrative purposes and do not represent the only implementation.

[0043] Please refer to Figures 1 to 4 A profiling detection device 200 is used for a forage harvester 100, and the profiling detection device 200 is respectively matched with opposite ends of a header 400.

[0044] The profiling detection device 200 comprises a mounting member 21 and a profiling detection assembly 22. The mounting member 21 is used for matching with the header 400. The profiling detection assembly 22 comprises a profiling rod 221, a connecting member 222 and at least two profiling wheels 223. One end of the profiling rod 221 is in sliding connection with the mounting member 21, and the other end of the profiling rod 221, which is away from the mounting member 21, is in rotational connection with the connecting member 222 through a rotating shaft 224. All the profiling wheels 223 are rotatably matched with one side of the connecting member 222, which is away from the profiling rod 221, and all the profiling wheels 223 are arranged side by side along the running direction of the forage harvester 100.

[0045] Among them, all the profiling wheels 223 roll along the ground, and all the profiling wheels 223 can drive the connecting member 222 to rotate relative to the profiling rod 221 following the change of the ground slope.

[0046] It can be understood that when the forage harvester 100 travels on a horizontal ground, the line between the end faces of each profiling wheel 223 in contact with the ground extends in a horizontal direction, and none of the profiling wheels 223 drives the connecting piece 222 to rotate relative to the profiling rod 221. Correspondingly, when the forage harvester 100 travels uphill or downhill, i.e., the forage harvester 100 travels on an inclined ground, all the profiling wheels 223 roll along the ground, so that the line between the end faces of each profiling wheel 223 in contact with the ground is an inclined straight line parallel to the ground, and all the profiling wheels 223 drive the connecting piece 222 to rotate relative to the profiling rod 221, and the angle of rotation of the connecting piece 222 relative to the profiling rod 221 is the angle of inclination of the ground, i.e., the slope of the ground. In this way, the change of the angle of rotation of the connecting piece 222 relative to the profiling rod 221 can determine the change of the slope of the ground during the travel of the forage harvester 100.

[0047] All the profiling wheels 223 can follow the change of the ground height to drive the connecting piece 222 to move along the direction of gravity, so that the profiling rod 221 slides along the direction of gravity relative to the mounting piece 21.

[0048] It can be understood that when the forage harvester 100 cuts the ground vegetation, it needs to ensure the stubble height of the ground vegetation, and in this application, the stubble height of the ground vegetation is defined as a preset height, and at this time the profiling rod 221 has a relative preset position relative to the mounting piece 21.

[0049] In one case, the forage harvester 100 has a relative first position and a second position during travel, and the ground corresponding to the first position is higher than the ground corresponding to the second position, and when the forage harvester 100 is in the first position, the height of the header 400 relative to the ground along the direction of gravity is equal to the preset height, and the profiling rod 221 is in the preset position relative to the mounting piece 21. When the forage harvester 100 travels to the second position, all the profiling wheels 223 will keep rolling along the ground, and all the profiling wheels 223 will drive the connecting piece 222 to move downward along the direction of gravity, so that the profiling rod 221 slides downward along the direction of gravity relative to the mounting piece 21, and at this time the relative position of the profiling rod 221 relative to the mounting piece 21 is lower than the preset position. The distance of the profiling rod 221 sliding downward along the direction of gravity relative to the mounting piece 21 is equal to the height difference between the ground corresponding to the first position and the ground corresponding to the second position.

[0050] Correspondingly, the forage harvester 100 has a first position and a second position relative to the ground during the forage harvester 100 travels, the ground corresponding to the first position is lower than the ground corresponding to the second position, and when the forage harvester 100 is at the first position, the header 400 is at a preset height relative to the ground along the direction of gravity, and the profiling rod 221 is at a preset position relative to the mounting member 21, so that when the forage harvester 100 travels to the second position, all the profiling wheels 223 will keep rolling along the ground, and all the connecting members 222 will be driven by the profiling wheels 223 to move upward along the direction of gravity, so that the profiling rod 221 slides upward along the direction of gravity relative to the mounting member 21, and at this time, the relative position of the profiling rod 221 relative to the mounting member 21 is higher than the preset position, wherein the profiling rod 221 slides downward along the direction of gravity relative to the mounting member 21 by a height difference between the ground corresponding to the first position and the ground corresponding to the second position.

[0051] In another case, the first side and the second side are respectively defined as the relative two sides of the header 400 equipped with the square detection device, and correspondingly, the first profiling detection assembly 22 is equipped on the first side, and the second profiling detection assembly 22 is equipped on the second side.

[0052] When the forage harvester 100 moves to a position, the ground corresponding to the first side of the header 400 at the position is higher than the ground corresponding to the second side of the header 400 at the position, and if the first side of the header 400 is at a preset height relative to the ground along the direction of gravity, and the profiling rod 221 in the first profiling detection assembly 22 is at a preset position relative to the mounting member 21, then the height of the second side of the header 400 relative to the ground along the direction of gravity will be greater than the preset height, because all the profiling wheels 223 will keep rolling along the ground, so that all the connecting members 222 in the second profiling detection assembly 22 will be driven by the profiling wheels 223 to move downward along the direction of gravity, so that the profiling rod 221 slides downward along the direction of gravity relative to the mounting member 21, and at this time, the relative position of the profiling rod 221 relative to the mounting member 21 is lower than the preset position, wherein the profiling rod 221 slides downward along the direction of gravity relative to the mounting member 21 by a height difference between the ground corresponding to the first side at the position and the ground corresponding to the second side at the position.

[0053] Correspondingly, when the forage harvester 100 moves to a position, the ground surface corresponding to the first side of the header 400 at the position is lower than the ground surface corresponding to the second side of the header 400 at the position, if the height of the second side of the header 400 relative to the ground surface along the gravity direction is less than the preset height when the profiling rod 221 in the first profiling detection assembly 22 is at the preset position relative to the mounting member 21, all the profiling wheels 223 will drive the connecting member 222 to move upward along the gravity direction, so that the profiling rod 221 slides upward along the gravity direction relative to the mounting member 21, and the relative position of the profiling rod 221 relative to the mounting member 21 is higher than the preset position, wherein the distance that the profiling rod 221 slides upward along the gravity direction relative to the mounting member 21 is equal to the height difference between the ground surface corresponding to the first side of the header 400 at the position and the ground surface corresponding to the second side of the header 400 at the position.

[0054] In the profiling detection device 200 provided by the embodiment, the change of the ground slope during the movement of the forage harvester 100 can be determined according to the angle at which the connecting member 222 rotates relative to the profiling rod 221, and the change of the ground height during the movement of the forage harvester 100 can be determined according to the distance that the profiling rod 221 slides along the gravity direction relative to the mounting member 21, so that the change of the terrain during the movement of the forage harvester 100 can be obtained in real time, and the position relationship between the header 400 and the ground surface can be adjusted correspondingly, so as to achieve uniform stubble height of the ground vegetation.

[0055] The specific style of the connecting member 222 is not limited, and the specific connection style of the connecting member 222 and the profiling rod 221 is not limited. In one embodiment, the connecting member 222 includes two triangular plates 2221 arranged at intervals, the two triangular plates 2221 are equivalent and the angles between them are aligned with each other, the profiling rod 221 is rotatably connected between the same angle between the two triangular plates 2221, and all the profiling wheels 223 are arranged side by side on the side common to the other two angles.

[0056] It can be understood that the triangular structure is relatively stable, which is conducive to improving the structural stability of the profiling detection assembly 22. All the profiling wheels 223 are arranged side by side along the side of the triangular plate 2221, which is convenient to assemble and can improve the overall appearance of the profiling detection assembly 22.

[0057] In one embodiment, referring to Figure 2 and Figure 3 , the connecting member 222 further includes two limiting blocks 225 connected between the two triangular plates 2221, the two limiting blocks 225 are arranged on both sides of the profiling rod 221 along the movement direction of the forage harvester 100 and are spaced from the profiling rod 221.

[0058] It can be understood that, in the process of driving the connecting piece 222 to rotate relative to the profiling rod 221 by the profiling wheel 223, the limiting block 225 can abut against the profiling rod 221 to limit the angle of rotation of the connecting piece 222 relative to the profiling rod 221, thereby preventing the connecting piece 222 and the profiling rod 221 from being damaged due to the excessively large angle of rotation.

[0059] In one of the embodiments, as shown in Figure 2 and Figure 3 , the two triangular plates 2221 are isosceles triangular plates 2221, the profiling rod 221 is rotatably connected between the top angles of the two isosceles triangular plates 2221, and the axis of the profiling rod 221 coincides with the angle bisector of the top angles, one of the two limiting blocks 225 is connected between the two mutually aligned sides of the two isosceles triangular plates 2221, and the other limiting block 225 is connected between the other two mutually aligned sides of the two isosceles triangular plates 2221.

[0060] The specific number of the profiling wheels 223 is not limited. In one of the embodiments, the profiling wheels 223 are two, and the two profiling wheels 223 are rotatably connected between the two isosceles triangular plates 2221 and are respectively located at the two bottom angles of the two isosceles triangular plates 2221. In this way, the profiling detection assembly 22 has a simple structure and is convenient to assemble, which is conducive to saving costs.

[0061] In one of the embodiments, as shown in Figure 2 and Figure 4 , the profiling detection device 200 further comprises a sliding assembly 23, the sliding assembly 23 comprises a sliding rail 231 and a sliding block 232, the sliding rail 231 extends along the gravity direction and is arranged on the mounting piece 21, and the sliding block 232 is connected to one end of the profiling rod 221 away from the connecting piece 222 and movably arranged on the guide rail.

[0062] It can be understood that, when the sliding block 232 slides along the gravity direction in the guide rail, the profiling rod 221 will be synchronously moved along the gravity direction, thereby realizing the sliding of the profiling rod 221 relative to the mounting piece 21. In this way, the distance of the sliding of the sliding block 232 along the gravity direction in the guide rail can reflect the change of the ground height difference of the forage harvester 100 in the process of traveling. Moreover, the guide rail can prevent the profiling rod 221 from deviating, so as to ensure that the profiling rod 221 can move along the gravity direction to actually reflect the change of the ground height difference of the forage harvester 100 in the process of traveling.

[0063] In one of the embodiments, as shown in Figure 2 and Figure 4The profiling detection device 200 further comprises two buffer assemblies 24, which are respectively arranged at opposite ends of the guide rail along the gravity direction and abut against the sliding block 232 to limit the movement of the sliding block 232 in the guide rail along the gravity direction. In this way, the profiling rod 221 can be prevented from being separated from the guide rail and the mounting member 21, so as to ensure the structural stability of the profiling detection device 200.

[0064] The specific style of the buffer assembly 24 is not limited. In one of the embodiments, please refer to Figure 2 and Figure 4 Each buffer assembly 24 comprises a buffer member 241, a fixing member 242 and an elastic member 243, the elastic member 243 is connected between the buffer member 241 and the fixing member 242 in a deformable manner, the fixing member 242 is fixedly connected with the guide rail, the buffer member 241 is located on the side of the fixing member 242 facing the sliding block 232 and is movable relative to the fixing member 242.

[0065] It can be understood that, in the process that the profiling rod 221 moves relative to the mounting member 21 along the gravity direction under the action of the sliding block 232, the sliding block 232 will abut against the buffer member 241 and push the buffer member 241 to move towards the fixing member 242, and the elastic member 243 will be compressed and deformed between the buffer member 241 and the fixing member 242 to offset the pushing force of the sliding block 232 on the buffer member 241, so as to play a buffering role to avoid the sliding block 232 from being damaged due to the excessive kinetic energy of the sliding block 232, so as to ensure the structural stability of the profiling detection device 200 and improve the service life of the profiling detection device 200. When the sliding block 232 pushes the buffer member 241 to move towards the fixing member 242 and the buffer member 241 abuts against the fixing member 242, the fixing member 242 can limit the movement of the sliding block 232 in the guide rail along the gravity direction, thereby limiting the movement of the profiling rod 221 relative to the mounting member 21. In this way, the profiling rod 221 can be prevented from being separated from the guide rail and the mounting member 21, so as to ensure the structural stability of the profiling detection device 200.

[0066] Please refer to Figure 1 and Figure 2 A profiling adjustment system 300, which comprises an angle detection device 31, a displacement detection device 32, an angle adjustment device, a height adjustment device and the profiling detection device 200 in the foregoing embodiments.

[0067] The angle detection device 31 is electrically connected with the rotating shaft 224 and is used to detect the rotating angle of the rotating shaft 224 in real time. The angle adjustment device is used to control the horizontal of the cutting platform 400 relative to the ground according to the rotating angle.

[0068] It can be understood that the connecting piece 222 rotates through the rotating shaft 224 to drive itself to rotate synchronously relative to the profiling rod 221, and thus the rotating angle of the rotating shaft 224 is equal to the rotating angle of the connecting piece 222 relative to the profiling rod 221, and then the rotating angle of the connecting piece 222 relative to the profiling rod 221 can be obtained by detecting the rotating angle of the rotating shaft 224 in real time through the angle detection device 31, and the change of the ground slope in the process of the forage harvester 100 advancing is determined. After the change of the ground slope in the process of the forage harvester 100 advancing is determined, the angle adjusting device needs to be controlled to move the header 400, so that the header 400 is horizontal relative to the ground, thereby realizing uniform stubble height of the ground vegetation.

[0069] The displacement detection device 32 is electrically connected with the sliding block 232 and is used to detect the moving distance of the sliding block 232 in real time. The height adjusting device is used to control the distance of the header 400 relative to the ground along the gravity direction according to the rotating angle.

[0070] It can be understood that the profiling rod 221 moves along the gravity direction in the guide rail through the sliding block 232 to drive itself to move synchronously relative to the mounting piece 21 along the gravity direction, and thus the moving distance of the sliding block 232 along the gravity direction in the guide rail is equal to the moving distance of the profiling rod 221 relative to the mounting piece 21 along the gravity direction, and then the moving distance of the profiling rod 221 relative to the mounting piece 21 along the gravity direction can be obtained by detecting the moving distance of the sliding block 232 in real time through the displacement detection device 32, and the height change of the ground in the process of the forage harvester 100 advancing is determined. After the height change of the ground in the process of the forage harvester 100 advancing is determined, the height adjusting device needs to be controlled to move the header 400, so that the distance of the header 400 relative to the ground along the gravity direction meets the height required by the stubble height, thereby ensuring the working quality of the forage harvester 100.

[0071] Please refer to Figure 1 A forage harvester 100, comprising a header 400 and the profiling adjusting system 300 in the foregoing embodiments, and the profiling adjusting system 300 is matched with the header 400.

[0072] The technical features of the above-described embodiments can be combined arbitrarily, and in order to make the description concise, all possible combinations of the technical features in the above-described embodiments are not described, and as long as the combinations of the technical features do not exist contradictory, it should be considered that they are within the scope of the present disclosure.

[0073] The above embodiments only express several implementation ways of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation to the patent scope of the application. It should be pointed out that for ordinary skilled persons in the art, several modifications and improvements can be made without departing from the concept of the present application, which all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A contour detecting device for a forage harvester, the contour detecting device being attached to opposite ends of a header, respectively, characterized in that, The profiling detection device comprises: The mounting member is used for being connected with the header, and the profiling detection assembly comprises a profiling rod, a connecting member and at least two profiling wheels, one end of the profiling rod is slidably connected with the mounting member, the other end of the profiling rod away from the mounting member is rotatably connected with the connecting member through a rotating shaft, all the profiling wheels are rotatably connected with the connecting member on the side away from the profiling rod, and all the profiling wheels are arranged side by side along the direction of movement of the forage harvester, and the connecting line through the centers of all the profiling wheels is parallel to the profiling rod; Wherein, all the profiling wheels roll along the ground, and all the profiling wheels can drive the connecting member to rotate relative to the profiling rod following the change of the ground slope, and can drive the connecting member to move along the direction of gravity following the change of the ground height, so that the profiling rod slides along the direction of gravity relative to the mounting member; The connecting member comprises two triangular plates arranged at intervals, the two triangular plates are identical and the angles between them are aligned with each other, the profiling rod is rotatably connected between the same angle of the two triangular plates, and all the profiling wheels are arranged side by side on the side of the other two angles. It also comprises a sliding assembly, the sliding assembly comprises a sliding rail and a sliding block, the sliding rail extends along the direction of gravity and is arranged on the mounting member, and the sliding block is connected with the end of the profiling rod away from the connecting member and movably arranged on the sliding rail.

2. The profiling detection device according to claim 1, characterized in that The connecting member further comprises two limiting blocks connected between the two triangular plates, the two limiting blocks are arranged on the two sides of the profiling rod along the direction of movement of the forage harvester respectively and are spaced from the profiling rod.

3. The profiling detection device according to claim 2, characterized in that The two triangular plates are isosceles triangular plates, the profiling rod is rotatably connected between the top angles of the two isosceles triangular plates, the axis of the profiling rod coincides with the angle bisector of the top angle, one of the two limiting blocks is connected between the two waists of the two isosceles triangular plates aligned with each other, and the other is connected between the other two waists of the two isosceles triangular plates aligned with each other.

4. The profiling detection device according to claim 3, characterized in that The profiling wheels are two, the two profiling wheels are rotatably connected between the two isosceles triangular plates and are respectively located at the two bottom angles of the two isosceles triangular plates aligned with each other.

5. The profiling detection device according to claim 4, characterized in that It also comprises two buffer assemblies, the two buffer assemblies are arranged on the opposite ends of the sliding rail along the direction of gravity respectively and are used for abutting with the sliding block to limit the movement of the sliding block in the sliding rail along the direction of gravity.

6. The profiling detection device according to claim 5, characterized in that Each of the buffer assemblies comprises a buffer member, a fixed member and an elastic member, the elastic member is connected between the buffer member and the fixed member in a deformable manner, the fixed member is fixedly connected with the sliding rail, the buffer member is located on the side of the fixed member facing the sliding block and is movable relative to the fixed member.

7. A contouring system, comprising: It comprises: The profiling detection device as claimed in any one of claims 1 to 6; An angle detection device is electrically connected with the rotating shaft and is used for detecting the rotating angle of the rotating shaft in real time; A displacement detection device is electrically connected with the sliding block and is used for detecting the movement distance of the sliding block in real time; An angle adjusting device is used for controlling the header relative to the ground level according to the rotating angle; and Height adjustment device for controlling the distance of a cutting platform relative to the ground in the direction of gravity as a function of the rotation angle.

8. A forage harvester characterized in that A cutting platform comprising a contouring adjustment system as claimed in claim 7, which is coupled to the cutting platform.

Images