Header deflection detection device and harvester

Abstract

The utility model relates to the technical field of harvesters, in particular to a header deflection detection device and a harvester. The header deflection detection device comprises a detection connecting rod, an angle sensor and a transmission part. The detection connecting rod is rotatably arranged on the header body in the breadth direction of the header body, the angle sensor is fixed to the header body, and an output shaft of the angle sensor is connected with the detection connecting rod so as to detect the angular displacement of the detection connecting rod. One end of the transmission part is fixedly connected with one side of the detection connecting rod in the radial direction, and the transmission part and the profiling sliding plate are kept against each other in the lifting process of the profiling sliding plate, so that the transmission part and the detection connecting rod can rotate around the axis of the detection connecting rod along with lifting of the profiling sliding plate; and the angular displacement generated by the rotation of the detection connecting rod can reflect the lifting linear displacement of the profiling sliding plate, namely the deflection of the flexible header. Therefore, through the header deflection detection device, the deflection of the flexible header can be detected, and the overall structure of the device is simple.

Description

Technical Field

[0001] The present application relates to the technical field of harvesters, and in particular to a harvester and a header deflection detection device. Background Art

[0002] With the continuous improvement of agricultural mechanization, various types of special agricultural machinery and equipment have been widely used. Among the many agricultural machinery and equipment, harvesters have become one of the important tools for crop harvesting due to their high efficiency and convenience.

[0003] Currently, harvesters for crops like soybeans typically use flexible headers that automatically adjust their height to the undulations of the ground during harvesting. To ensure that the flexible header maintains a low stubble position during harvesting, minimizing crop losses and maximizing the harvester's adaptability, it is necessary to measure the header's deflection—that is, to monitor its degree of deformation during operation. Therefore, there is an urgent need for a simple device capable of detecting header deflection. Utility Model Content

[0004] The purpose of the utility model is to provide a header deflection detection device and a harvester, which can detect the header deflection and have a simple structure.

[0005] The utility model provides a device for detecting the deflection of a cutting platform, comprising a detection connecting rod, an angle sensor and a transmission member;

[0006] The detection link is rotatably mounted on the header body of the flexible header around its own axis, the angle sensor is fixed to the header body, and the output shaft of the angle sensor is connected to the detection link to detect the angular displacement of the detection link;

[0007] A liftable profiling slide is provided on one side of the header body, one end of the transmission member is fixedly connected to the detection link, and the transmission member and the profiling slide are kept in contact with each other, so that the profiling slide can push the detection link to rotate through the transmission member when it is lifted or lowered.

[0008] Furthermore, the transmission member is abutted against the top of the contoured slide plate, and the transmission member has a predetermined gravity, so that the transmission member can maintain contact with the contoured slide plate under the action of its own gravity.

[0009] Furthermore, an elastic member is provided between the transmission member and the contoured slide plate, and the transmission member is kept in contact with the contoured slide plate under the action of the elastic member.

[0010] Furthermore, the header deflection detection device further includes a mounting member;

[0011] The mounting member is fixed on the header body, and a support portion is formed on the mounting member. The support portion is rotatably connected to the detection link, so that the detection link can rotate around its own axis relative to the support portion.

[0012] Furthermore, the supporting portion is a supporting ring, and the detection connecting rod adaptively passes through the supporting ring.

[0013] Furthermore, there are multiple mounting parts, and the multiple mounting parts are arranged at intervals along the length direction of the detection connecting rod.

[0014] Furthermore, a skateboard support arm is provided on the contoured skateboard so as to be liftably connected to the cutting platform body through the skateboard support arm, and the transmission member abuts against the skateboard support arm.

[0015] Furthermore, there are multiple skateboard arms, and the multiple skateboard arms are spaced apart along the width direction of the header body;

[0016] The detection link is provided with a plurality of transmission members at intervals along its length direction, and the plurality of transmission members are respectively pressed against the plurality of slide plate arms.

[0017] Furthermore, one end of the detection connecting rod is provided with a coaxial connecting sleeve, and a positioning pin is provided inside the connecting sleeve;

[0018] The output shaft of the angle sensor is formed with a positioning notch, the output shaft is inserted into the connecting sleeve, and the positioning pin is inserted into the positioning notch.

[0019] The utility model also provides a harvester, comprising any one of the above-mentioned harvesting platform deflection detection devices.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] The present invention provides a cutting platform deflection detection device comprising a detection link, an angle sensor, and a transmission member. The flexible cutting platform includes a cutting platform body and a contouring slide, the contouring slide being liftably connected to one side of the cutting platform body. The detection link is rotatably mounted on the cutting platform body along the width of the cutting platform body. The angle sensor is fixed to the cutting platform body, and the output shaft of the angle sensor is connected to the detection link, so that the angle sensor detects the angular displacement generated by the rotation of the detection link. One end of the transmission member is fixedly connected to one side of the detection link in a radial direction. The transmission member abuts against the contouring slide, and the transmission member and the contouring slide are able to maintain abutment with each other during the raising and lowering of the contouring slide. As the contouring slide is raised or lowered, the transmission member and the detection link rotate about the axis of the detection link. The angular displacement generated by the rotation of the detection link reflects the linear displacement of the contouring slide, i.e., the deflection of the flexible cutting platform. Therefore, the cutting platform deflection detection device of the present invention can detect the deflection of the flexible cutting platform, and the overall structure of the device is simple.

[0022] The utility model also provides a harvester comprising the header deflection detection device, so the harvester also has the beneficial effects of the header deflection detection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 A schematic structural diagram of a header deflection detection device provided by an embodiment of the present utility model;

[0025] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0026] Figure 3 A schematic diagram of the structure of an angle sensor of a header deflection detection device provided by an embodiment of the present utility model;

[0027] Figure 4 A schematic diagram of the structure of a header deflection detection device provided by an embodiment of the present utility model installed on a flexible header;

[0028] Figure 5 for Figure 4 Enlarged view of point B in the middle.

[0029] Reference numerals:

[0030] 1-Detection connecting rod, 11-Connecting sleeve, 12-Location pin, 2-Transmission part, 3-Mounting part, 4-Angle sensor, 41-Output shaft, 42-Location notch, 43-Bracket, 5-Heading table body, 6-Profiling slide, 61-Slide plate support arm. DETAILED DESCRIPTION

[0031] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0032] The components of the embodiments of the present invention generally described and shown in the drawings herein may be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention.

[0033] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of the present invention.

[0034] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0035] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0036] Refer to the following Figures 1 to 5 The present invention describes a header deflection detection device and a harvester according to some embodiments of the present application.

[0037] This application provides a header deflection detection device, such as Figure 1 As shown, the header deflection detection device includes a detection link 1, an angle sensor 4 and a transmission member 2.

[0038] For flexible headers, such as Figure 4 and Figure 5 As shown, it includes a header body 5 and a contouring slide 6. The contouring slide 6 is liftably connected to one side of the header body 5. When crops are harvested using the flexible header, the contouring slide 6 can rise and fall according to the unevenness of the ground. A detection link 1 is rotatably mounted on the header body 5 along the width of the header body 5. That is, the axis of the detection link 1 extends along the width of the header body 5 and the detection link 1 is rotatable about its own axis. At the same time, an angle sensor 4 is fixed to the header body 5, and the output shaft 41 of the angle sensor 4 is connected to the detection link 1. The angle sensor 4 detects the angular displacement caused by the rotation of the detection link 1.

[0039] One end of the transmission member 2 is fixedly connected to one side of the detection link 1 in the radial direction. At the same time, the transmission member 2 is in contact with the profiling slide 6. During the raising and lowering process of the profiling slide 6, the transmission member 2 can always remain in contact with the profiling slide 6. Therefore, as the profiling slide 6 is raised and lowered, the transmission member 2 and the detection link 1 can rotate around the axis of the detection link 1. The angular displacement generated by the rotation of the detection link 1 can reflect the linear displacement of the raising and lowering of the profiling slide 6, that is, reflect the deflection of the flexible header. Therefore, the header deflection detection device of the present application can detect the deflection of the flexible header, and the overall structure of the device is simple.

[0040] Regarding the abutment between the transmission member 2 and the contoured slide 6, in one embodiment of the present application, preferably, as Figure 5 As shown, the transmission member 2 is abutted against the top of the contoured slide 6, and the transmission member 2 has a predetermined gravity, so that the transmission member 2 can have a downward movement tendency under the action of its own gravity to always maintain resistance against the contoured slide 6.

[0041] Therefore, when the contoured slide 6 rises, the contoured slide 6 can push the transmission member 2, causing the end of the transmission member 2 away from the detection link 1 to flip upward, thereby driving the detection link 1 to rotate counterclockwise through the transmission member 2; when the contoured slide 6 falls, the end of the transmission member 2 away from the detection link 1 can flip downward under the action of its own gravity, thereby driving the detection link 1 to rotate clockwise.

[0042] Regarding the abutment between the transmission member 2 and the contoured skateboard 6, in another embodiment of the present application, preferably, an elastic member, such as a spring, is provided between the transmission member 2 and the contoured skateboard 6; the transmission member 2 has a tendency to move toward the contoured skateboard 6 under the action of the elastic force of the elastic member, so that the transmission member 2 and the contoured skateboard 6 can always maintain abutment against each other.

[0043] Therefore, as the contouring slide plate 6 rises and falls, the contouring slide plate 6 can be turned up and down to drive the detection connecting rod 1 to rotate counterclockwise or clockwise.

[0044] Regarding the installation of the detection link 1 on the header body 5, in one embodiment of the present application, preferably, as Figure 1 As shown, the cutting platform deflection detection device also includes a mounting member 3, which is fixed to the cutting platform body 5, for example, the mounting member 3 is fastened to the cutting platform body 5 by a fastener; the mounting member 3 is formed with a support portion, and the detection link 1 is rotatably connected to the support portion, so that the detection link 1 can rotate around its own axis relative to the support portion, thereby the detection link 1 can be rotatably mounted on the cutting platform body 5.

[0045] In this embodiment, preferably, Figure 1 As described above, there are multiple mounting members 3 , which are spaced apart along the two end directions of the detection link 1 , so that the detection link 1 is stably mounted on the header body 5 .

[0046] In this embodiment, preferably, Figure 1 As shown, the supporting portion on the mounting member 3 is a supporting ring, which is adapted to the detection link 1 so that the detection link 1 can just pass through the supporting ring and rotate around its own axis.

[0047] Regarding the contoured slide 6 and the transmission member 2, in one embodiment of the present application, preferably, as Figure 4 and Figure 5 As shown, the profiling skateboard 6 is provided with a skateboard support arm 61, which is liftably connected to the cutting platform body 5 so that the profiling skateboard 6 is connected to the cutting platform body 5 and can be lifted relative to the cutting platform body 5; the transmission member 2 rests on the skateboard support arm 61.

[0048] In this embodiment, there are multiple skateboard arms 61, which are spaced apart along the width direction of the header body 5, so that the contoured skateboard 6 is stably mounted on the header body 5 and can be stably raised and lowered.

[0049] like Figure 1 As shown, the detection link 1 is provided with a plurality of transmission members 2, and the plurality of transmission members 2 are spaced apart along the length direction of the detection link 1, and the plurality of transmission members 2 are respectively abutted against the plurality of skateboard arms 61, so that the lifting and lowering of the profiling skateboard 6 can be accurately transmitted to the detection link 1 through the plurality of transmission members 2, so that the detection link 1 is rotated, and the angular displacement of the detection link 1 is used to accurately reflect the linear displacement of the lifting and lowering of the profiling skateboard 6, so that the detection of the deflection of the cutting table is more accurate.

[0050] Regarding the connection between the angle sensor 4 and the detection link 1, in one embodiment of the present application, preferably, as Figure 2 and Figure 3As shown, one end of the detection link 1 is provided with a connecting sleeve 11, the connecting sleeve 11 is coaxially connected to the detection link 1, and a positioning pin 12 is provided inside the connecting sleeve 11; the angle sensor 4 is installed on the side plate of the cutting platform body 5 through a bracket 43, and the output shaft 41 of the angle sensor 4 is formed with a positioning notch 42. The output shaft 41 of the angle sensor 4 can be coaxially inserted into the connecting sleeve 11, and the positioning pin 12 in the connecting sleeve 11 is inserted into the positioning notch 42 of the output shaft 41, thereby connecting the output shaft 41 of the angle sensor 4 to the detection link 1 coaxially, so that the output shaft 41 of the angle sensor 4 can rotate synchronously with the detection link 1, and then the angle sensor 4 can be used to detect the displacement caused by the rotation of the detection link 1.

[0051] The present application also provides a harvester comprising the harvesting platform deflection detection device of any of the above embodiments.

[0052] In this embodiment, the harvester includes the header deflection detection device, so the harvester has all the beneficial effects of the header deflection detection device, which will not be described in detail here.

[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A header deflection detection device, characterized in that: Including detection connecting rod, angle sensor and transmission parts; The detection link is rotatably mounted on the header body of the flexible header around its own axis, the angle sensor is fixed to the header body, and the output shaft of the angle sensor is connected to the detection link to detect the angular displacement of the detection link; A liftable profiling slide is provided on one side of the header body, one end of the transmission member is fixedly connected to the detection link, and the transmission member and the profiling slide are kept in contact with each other, so that the profiling slide can push the detection link to rotate through the transmission member when it is lifted or lowered.

2. The header deflection detection device according to claim 1, characterized in that: The transmission member is placed against the top of the contoured slide plate and has a predetermined gravity, so that the transmission member can maintain contact with the contoured slide plate under the action of its own gravity.

3. The header deflection detection device according to claim 1, characterized in that: An elastic member is provided between the transmission member and the contoured slide plate, and the transmission member is kept in contact with the contoured slide plate under the action of the elastic member.

4. The header deflection detection device according to claim 1, characterized in that: The header deflection detection device further includes a mounting member; The mounting member is fixed on the header body, and a support portion is formed on the mounting member. The support portion is rotatably connected to the detection link, so that the detection link can rotate around its own axis relative to the support portion.

5. The header deflection detection device according to claim 4, characterized in that: The supporting portion is a supporting ring, and the detection link adaptively passes through the supporting ring.

6. The header deflection detection device according to claim 4, characterized in that: There are multiple mounting parts, and the multiple mounting parts are arranged at intervals along the length direction of the detection connecting rod.

7. The header deflection detection device according to claim 1, characterized in that: The contoured skateboard is provided with a skateboard support arm, which is connected to the cutting platform body in a liftable manner through the skateboard support arm, and the transmission member is against the skateboard support arm.

8. The header deflection detection device according to claim 7, characterized in that: There are multiple skateboard arms, and the multiple skateboard arms are spaced apart along the width direction of the header body; The detection link is provided with a plurality of transmission members at intervals along its length direction, and the plurality of transmission members are respectively pressed against the plurality of slide plate arms.

9. The header deflection detection device according to claim 1, characterized in that: One end of the detection connecting rod is provided with a coaxial connecting sleeve, and a positioning pin is provided inside the connecting sleeve; The output shaft of the angle sensor is formed with a positioning notch, the output shaft is inserted into the connecting sleeve, and the positioning pin is inserted into the positioning notch.

10. A harvester, characterized in that: The device comprises the header deflection detection device according to any one of claims 1 to 9.

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