Displacement monitoring device for a harvester and harvester

Abstract

The utility model discloses a kind of displacement monitoring devices and harvesting machines for harvester, displacement monitoring device includes guide plate and detection component, guide plate is located on the cutterbar mounting beam of harvester and is opened with guide slot, guide slot is set along the length direction of cutterbar mounting beam, and guide slot is set along the width direction of cutterbar mounting beam Inclinedly;Detection component includes sliding pin, swing link and angle sensor, sliding pin is slidably located in guide slot, one end of swing link is hinged with sliding pin, the other end of swing link is connected with angle sensor, angle sensor is located on the sliding seat of harvester, and sliding seat is slidably located on cutterbar mounting beam, angle sensor is used to detect the swing angle of swing link, to determine the linear displacement of sliding seat, with the advantages of high detection accuracy, easy and fast installation and small space occupation.

Description

Technical Field

[0001] This utility model belongs to the technical field of harvester accessories, specifically relating to a displacement monitoring device for a harvester and a harvester. Background Technology

[0002] When harvesting crops with a harvester, the fore-and-aft position of the reel on the header needs to be constantly adjusted according to the height and lodging condition of the crops. However, the header is usually only equipped with an angle sensor to detect the header tilt angle, making it impossible for operators to accurately determine the fore-and-aft displacement of the reel, thus affecting the crop harvesting effect. In addition, due to the complex structure and large size of existing displacement sensors, the lack of sufficient installation space on the header, and the ease with which displacement sensors can interfere with the installation of angle sensors or other components, it is not possible to directly install a displacement sensor for detecting the displacement of the reel on the header. Utility Model Content

[0003] In view of the above-mentioned defects or deficiencies, this utility model provides a displacement monitoring device and a harvester for a harvester, aiming to solve the technical problem that the prior art cannot accurately detect the front and rear displacement of the reel.

[0004] To achieve the above objectives, this utility model provides a displacement monitoring device for a harvester, the displacement monitoring device comprising: A guide plate is provided on the header mounting beam of the harvester and has a guide groove. The guide groove extends along the length direction of the header mounting beam and is inclined along the width direction of the header mounting beam. The detection assembly includes a sliding pin, a swing linkage, and an angle sensor. The sliding pin is slidably disposed in a guide groove. One end of the swing linkage is hinged to the sliding pin, and the other end of the swing linkage is connected to the angle sensor. The angle sensor is disposed on the sliding seat of the harvester, and the sliding seat is slidably disposed on the header mounting beam. The angle sensor is used to detect the swing angle of the swing linkage to determine the linear displacement of the sliding seat.

[0005] In this embodiment of the utility model, the swing linkage includes a rod body and a mounting block. One end of the rod body is hinged to a sliding pin, and the mounting block is located at the other end of the rod body. The mounting block has a mounting hole, and the angle sensor has a rotation detection shaft that extends into the mounting hole and is connected to the mounting block.

[0006] In this embodiment of the invention, a limiting step is provided on the rotating detection shaft, and an abutting boss is provided on the wall of the mounting hole, and the abutting boss abuts against the limiting step.

[0007] In this embodiment of the utility model, the detection component further includes a limiting ring and a limiting spring. The limiting ring and the limiting spring are both sleeved on the sliding pin. A first groove is provided on the sliding pin. The limiting ring is disposed in the first groove. One end of the limiting spring abuts against the limiting ring, and the other end of the limiting spring abuts against the rod body.

[0008] In this embodiment of the invention, the detection component further includes a stop ring, which is sleeved on the sliding pin and located on the side of the rod body facing away from the guide plate.

[0009] In this embodiment of the utility model, a mounting bracket is provided on the sliding seat, an angle sensor is provided on the mounting bracket, and a rotation detection shaft passes through the mounting bracket and extends into the mounting hole.

[0010] In this embodiment of the utility model, the mounting bracket includes a connecting part and a mounting part. The connecting part is connected to the sliding seat, and the mounting part is connected to the connecting part and bent relative to the connecting part. An angle sensor is disposed on the mounting part.

[0011] In this embodiment of the utility model, the angle sensor is provided with a connecting ear, a connecting fastener is provided through the connecting ear, and a connecting hole is provided on the mounting part corresponding to the position of the connecting ear for the connecting fastener to pass through.

[0012] In this embodiment of the utility model, an arc-shaped clearance groove is provided on the sliding seat, and the sliding pin passes through the arc-shaped clearance groove and extends into the guide groove.

[0013] To achieve the above objectives, this utility model also provides a harvester, which includes a header device and a displacement monitoring device for the harvester as described above. The header device includes a reel, a header mounting beam, and a sliding seat, with the reel connected to the sliding seat.

[0014] Through the above technical solutions, the displacement monitoring device and harvester for a harvester provided in this utility model embodiment have the following beneficial effects: In the technical solution of this utility model, the sliding seat can drive the angle sensor to move, so that the angle sensor drives the sliding pin to slide in the guide groove through the swing linkage. Since the guide groove is inclined, the sliding pin can drive the swing linkage to swing during the sliding process. The angle sensor can detect the swing angle of the swing linkage, and then determine the sliding distance of the sliding pin according to the swing angle of the swing linkage. The sliding pin, the sliding seat and the reel move synchronously to realize the determination of the linear displacement of the sliding seat and the reel by detecting the swing angle of the swing linkage. The linear displacement of the reel can be accurately detected without the need to add an additional displacement sensor. It has the advantages of high detection accuracy, convenient and quick installation and small space occupation.

[0015] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the embodiments of the present invention and form part of the specification. They are used together with the following detailed description to explain the embodiments of the present invention, but do not constitute a limitation thereof. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without any inventive effort. In the drawings: Figure 1 This is a structural schematic diagram of a displacement monitoring device, a cutting table mounting beam, and a sliding seat according to an embodiment of the present invention; Figure 2 This is a partial structural schematic diagram of a displacement monitoring device, a cutting table mounting beam, and a sliding seat according to an embodiment of the present utility model; Figure 3 This is an exploded structural diagram of a displacement monitoring device, a cutting table mounting beam, and a sliding seat according to an embodiment of the present invention. Figure 4 This is a schematic diagram of the structure of a displacement monitoring device according to an embodiment of the present invention; Figure 5 This is a cross-sectional structural schematic diagram of a displacement monitoring device according to an embodiment of the present invention; Figure 6 This is an exploded structural diagram of a displacement monitoring device according to an embodiment of the present invention; Figure 7 This is a structural schematic diagram of a sliding pin and a swing linkage according to an embodiment of the present invention; Figure 8 This is a schematic diagram of the structure of a swing linkage according to an embodiment of the present invention; Figure 9 This is a schematic diagram of the structure of the mounting bracket according to an embodiment of the present invention.

[0017] Explanation of reference numerals in the attached figures Detailed Implementation

[0018] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0019] The displacement monitoring device for a harvester according to the present invention is described below with reference to the accompanying drawings.

[0020] like Figures 1 to 5As shown, this utility model provides a displacement monitoring device for a harvester. The displacement monitoring device includes a guide plate 10 and a detection component. The guide plate 10 is disposed on the header mounting beam 200 of the harvester and has a guide groove 11. The guide groove 11 extends along the length direction of the header mounting beam 200 and is inclined along the width direction of the header mounting beam 200. The detection component includes a sliding pin 20, a swing linkage 30, and an angle sensor 40. The sliding pin 20 is slidably disposed in the guide groove 11. One end of the swing linkage 30 is hinged to the sliding pin 20, and the other end of the swing linkage 30 is connected to the angle sensor 40. The angle sensor 40 is disposed on the sliding seat 300 of the harvester, and the sliding seat 300 is slidably disposed on the header mounting beam 200. The angle sensor 40 is used to detect the swing angle of the swing linkage 30 to determine the linear displacement of the sliding seat 300.

[0021] It should be noted that the displacement monitoring device of this utility model can be applied to a harvester. The harvester includes a header device, which includes a reel, a header mounting beam 200, and a sliding seat 300. The sliding seat 300 is slidably mounted on the header mounting beam 200. The reel is connected to the sliding seat 300 so that the sliding seat 300 can drive the reel to slide back and forth relative to the header mounting beam 200. The displacement monitoring device of this utility model is used to detect the displacement of the reel.

[0022] Specifically, the guide plate 10 of the displacement monitoring device is mounted on the cutting table mounting beam 200, and the length direction of the cutting table mounting beam 200 is as follows: Figure 3 As shown in the front-to-back direction, the width direction of the cutter mounting beam 200 is as follows: Figure 3 As shown in the vertical direction, the guide plate 10 has a guide groove 11 extending in the front-back direction, and the guide groove 11 is inclined from top to bottom in the front-back direction. The angle sensor 40 of the displacement monitoring device is mounted on the sliding seat 300, so that the sliding seat 300 can drive the angle sensor 40 to slide back and forth along the cutting table mounting beam 200. The angle sensor 40 is provided with a swing linkage 30, and the end of the swing linkage 30 away from the angle sensor 40 is provided with a sliding pin 20. The sliding pin 20 extends into the guide groove 11 and can slide along the guide groove 11.

[0023] When the sliding seat 300 drives the reel to move back and forth, the sliding seat 300 synchronously drives the angle sensor 40 so that the angle sensor 40 drives the sliding pin 20 to slide in the guide groove 11 through the swing linkage 30. Since the guide groove 11 is inclined, the sliding pin 20 can drive the swing linkage 30 to swing during the sliding process. The angle sensor 40 can detect the swing angle of the swing linkage 30, and then determine the sliding distance of the sliding pin 20 based on the swing angle of the swing linkage 30. The sliding pin 20, the sliding seat 300 and the reel move synchronously to realize the determination of the linear displacement of the sliding seat 300 and the reel by detecting the swing angle of the swing linkage 30. The linear displacement of the reel can be accurately detected without the need for an additional displacement sensor. It has the advantages of high detection accuracy, convenient and quick installation and small space occupation.

[0024] Understandably, the angle sensor 40 can be the same angle sensor used to detect tilt angle in the cutting table device, thus eliminating the need to add an angle sensor to the sliding seat 300, further reducing costs, simplifying assembly steps, and improving installation efficiency. In addition, since the guide groove 11 is inclined, the sliding pin 20 has both forward and backward displacement and up and down displacement when sliding. This allows the sliding pin 20 to drive the swing linkage 30 to swing when it moves up and down, making it easier for the angle sensor 40 to detect the swing angle of the swing linkage 30 and determine the displacement of the reel by the swing angle. It should be noted that the linear displacement can be determined by existing technology, such as by using an angle-displacement mapping table or an angle-displacement conversion formula to determine the linear displacement of the sliding seat 300. Since the method of determining the linear displacement by the swing angle is well known to those skilled in the art and is not part of the core improvement of this application, it will not be described in detail here.

[0025] In this embodiment of the utility model, the swing linkage 30 includes a rod body 31 and a mounting block 32. One end of the rod body 31 is hinged to the sliding pin 20, and the mounting block 32 is located at the other end of the rod body 31. The mounting block 32 has a mounting hole 321. The angle sensor 40 has a rotation detection shaft 41, which extends into the mounting hole 321 and is connected to the mounting block 32.

[0026] like Figures 6 to 8 As shown, the sliding pin 20 slides along the guide groove 11 to drive the rod body 31 to rotate. The rod body 31 drives the mounting block 32 and the rotation detection shaft 41 to rotate, so that the angle sensor 40 can accurately detect the swing angle of the rod body 31 through the rotation angle of the rotation detection shaft 41. The rotation detection shaft 41 is installed in the mounting hole 321 and can rotate synchronously with the mounting block 32, which improves the accuracy of displacement detection.

[0027] Furthermore, a limiting step 411 is provided on the rotating detection shaft 41, and an abutment boss 3211 is provided on the wall of the mounting hole 321, and the abutment boss 3211 abuts against the limiting step 411. Figure 6 and Figure 8 As shown, the limiting step 411 on the rotating detection shaft 41 is used to abut against the abutting boss 3211 in the mounting hole 321. It can both position and install the swing linkage 30, and limit the rotating detection shaft 41 to ensure that the rotating detection shaft 41 rotates synchronously with the mounting block 32, thereby further improving the accuracy of displacement detection.

[0028] In this embodiment of the utility model, the detection component further includes a limiting ring 21 and a limiting spring 22. The limiting ring 21 and the limiting spring 22 are both sleeved on the sliding pin 20. The sliding pin 20 has a first groove 23. The limiting ring 21 is disposed in the first groove 23. One end of the limiting spring 22 abuts against the limiting ring 21, and the other end of the limiting spring 22 abuts against the rod body 31.

[0029] like Figures 3 to 7 As shown, the two ends of the limiting spring 22 abut against the rod body 31 and the limiting ring 21 respectively, and the limiting ring 21 is installed in the first groove 23. The elastic force of the limiting spring 22 acts on the limiting ring 21, thereby pushing the limiting ring 21 to move towards the guide plate 10. The limiting ring 21 drives the sliding pin 20 to move towards the guide plate 10, so that the sliding pin 20 extends into the guide groove 11 and can slide along the guide groove 11, effectively preventing the sliding pin 20 from dislodging from the guide groove 11, and ensuring stable and reliable sliding.

[0030] In the embodiments of this utility model, such as Figures 3 to 7 As shown, the detection assembly also includes a stop ring 24, which is sleeved on the sliding pin 20 and located on the side of the rod body 31 facing away from the guide plate 10. The stop ring 24 is used to abut against the rod body 31 to limit the sliding pin 20 and prevent the sliding pin 20 from falling off the rod body 31. The structure is stable and reliable. Furthermore, the sliding pin 20 has a second slot 25, which is spaced apart from the first slot 23. The second slot 25 is used for installing the stop ring 24, which effectively prevents the stop ring 24 from falling off and further improves the structural stability.

[0031] In the embodiments of this utility model, such as Figure 4 and Figure 9As shown, the sliding seat 300 is provided with a mounting bracket 50, and the angle sensor 40 is mounted on the mounting bracket 50. The rotation detection shaft 41 passes through the mounting bracket 50 and extends into the mounting hole 321. The mounting bracket 50 is used for mounting the angle sensor 40, so that the rotation detection shaft 41 of the angle sensor 40 can extend into and be installed into the mounting hole 321, which improves the ease of assembly. The structure is compact and occupies little space, realizing the detection of tilt angle and linear displacement of the reel by a single angle sensor 40.

[0032] Furthermore, the mounting bracket 50 includes a connecting part 51 and a mounting part 52. The connecting part 51 is connected to the sliding seat 300, and the mounting part 52 is connected to the connecting part 51 and bent relative to the connecting part 51. An angle sensor 40 is disposed on the mounting part 52. In addition, the angle sensor 40 is provided with a connecting ear 42, and a connecting fastener 421 passes through the connecting ear 42. The mounting part 52 is provided with a connecting hole 521 at the position corresponding to the connecting ear 42 for the connecting fastener 421 to pass through.

[0033] like Figure 4 and Figure 9 As shown, the connecting part 51 is bent relative to the mounting part 52 to facilitate the mounting of the connecting part 51 on the sliding seat 300, which improves the ease of installation. The mounting part 52 is used for the rotation detection shaft 41 of the angle sensor 40 to pass through to stably support the angle sensor 40, which improves the structural reliability. Furthermore, the angle sensor 40 is provided with a connecting ear 42, and the mounting part 52 is provided with a connecting hole 321. The connecting fastener 421 passes through the connecting ear 42 and the mounting hole 321 to connect the angle sensor 40 to the mounting part 52, which makes the installation convenient and quick, and the structure stable and reliable.

[0034] In this embodiment of the utility model, an arc-shaped clearance groove 301 is provided on the sliding seat 300, and the sliding pin 20 passes through the arc-shaped clearance groove 301 and extends into the guide groove 11. Figures 1 to 3 As shown, the sliding seat 300 has an arc-shaped clearance groove 301 that communicates with the guide groove 11. The arc-shaped clearance groove 301 is used for the sliding pin 20 to pass through so that the sliding pin 20 can extend into the guide groove 11. The arc-shaped clearance groove 301 is set in an arc shape to avoid the sliding pin 20, effectively preventing sliding interference to the sliding pin 20. The structure is reasonably designed, and the setting of the sliding pin 20 passing through the sliding seat 300 improves the structural compactness and further reduces the space occupied.

[0035] In this embodiment of the utility model, the displacement monitoring device further includes a data processing module, which is communicatively connected to the angle sensor 40, and is used to determine the linear displacement of the sliding seat 300 based on the swing angle of the swing linkage 30.

[0036] Specifically, the angle sensor 40 is used to detect the swing angle of the swing linkage 30 and send the detection result to the data processing module. The data processing module receives the detection result and determines the linear displacement of the sliding seat 300 based on the swing angle, thereby determining the linear displacement of the reel. This eliminates the need for an additional displacement sensor, allowing for accurate detection of the reel's linear displacement, making the detection convenient and quick. Furthermore, it should be noted that the communication connection between the data processing module and the angle sensor 40 can utilize existing technology. The data processing module can be integrated into the angle sensor 40 or into the harvester's controller, facilitating accurate determination of the reel's forward and backward displacement by the operator. Since the method of communication between the data processing module and the angle sensor 40 is well-known to those skilled in the art and is not a core improvement of this application, it will not be elaborated upon here.

[0037] Furthermore, this utility model also provides a harvester, which includes a header device and a displacement monitoring device for the harvester as described above. The header device includes a reel, a header mounting beam 200, and a sliding seat 300. The reel is connected to the sliding seat 300. The specific structure of the displacement monitoring device is as described in the above embodiments. Since the harvester adopts all the technical solutions of the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated here.

[0038] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0039] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0040] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0041] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A displacement monitoring device for a harvester, characterized in that, The displacement monitoring device includes: A guide plate (10) is provided on the header mounting beam (200) of the harvester and has a guide groove (11). The guide groove (11) extends along the length direction of the header mounting beam (200) and is inclined along the width direction of the header mounting beam (200). The detection assembly includes a sliding pin (20), a swing linkage (30), and an angle sensor (40). The sliding pin (20) is slidably disposed in the guide groove (11). One end of the swing linkage (30) is hinged to the sliding pin (20), and the other end of the swing linkage (30) is connected to the angle sensor (40). The angle sensor (40) is disposed on the sliding seat (300) of the harvester, and the sliding seat (300) is slidably disposed on the header mounting beam (200). The angle sensor (40) is used to detect the swing angle of the swing linkage (30) to determine the linear displacement of the sliding seat (300).

2. The displacement monitoring device for a harvester according to claim 1, characterized in that, The swing linkage (30) includes a rod body (31) and a mounting block (32). One end of the rod body (31) is hinged to the sliding pin (20). The mounting block (32) is located at the other end of the rod body (31). The mounting block (32) has a mounting hole (321). The angle sensor (40) has a rotation detection shaft (41). The rotation detection shaft (41) extends into the mounting hole (321) and is connected to the mounting block (32).

3. The displacement monitoring device for a harvester according to claim 2, characterized in that, A limiting step (411) is provided on the rotation detection shaft (41), and an abutting boss (3211) is provided on the wall of the mounting hole (321), and the abutting boss (3211) abuts against the limiting step (411).

4. The displacement monitoring device for a harvester according to claim 2, characterized in that, The detection component also includes a limiting ring (21) and a limiting spring (22). The limiting ring (21) and the limiting spring (22) are both sleeved on the sliding pin (20). The sliding pin (20) has a first slot (23). The limiting ring (21) is located in the first slot (23). One end of the limiting spring (22) abuts against the limiting ring (21), and the other end of the limiting spring (22) abuts against the rod body (31).

5. The displacement monitoring device for a harvester according to claim 2, characterized in that, The detection component also includes a stop ring (24), which is sleeved on the sliding pin (20) and is located on the side of the rod body (31) facing away from the guide plate (10).

6. The displacement monitoring device for a harvester according to claim 2, characterized in that, The sliding seat (300) is provided with a mounting bracket (50), the angle sensor (40) is provided on the mounting bracket (50), and the rotation detection shaft (41) passes through the mounting bracket (50) and extends into the mounting hole (321).

7. The displacement monitoring device for a harvester according to claim 6, characterized in that, The mounting bracket (50) includes a connecting part (51) and a mounting part (52). The connecting part (51) is connected to the sliding seat (300). The mounting part (52) is connected to the connecting part (51) and is bent relative to the connecting part (51). The angle sensor (40) is mounted on the mounting part (52).

8. The displacement monitoring device for a harvester according to claim 7, characterized in that, The angle sensor (40) is provided with a connecting ear (42), and a connecting fastener (421) is provided on the connecting ear (42). The mounting part (52) is provided with a connecting hole (521) corresponding to the position of the connecting ear (42) for the connecting fastener (421) to pass through.

9. The displacement monitoring device for a harvester according to any one of claims 1 to 8, characterized in that, The sliding seat (300) has an arc-shaped clearance groove (301), and the sliding pin (20) passes through the arc-shaped clearance groove (301) and extends into the guide groove (11).

10. A harvester, characterized in that, The harvester includes a header assembly and a displacement monitoring device for the harvester according to any one of claims 1 to 9, the header assembly including a reel, the header mounting beam (200) and the sliding seat (300), the reel being connected to the sliding seat (300).

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