CN212413857U - Combine harvester cuts high detection device of stubble - Google Patents
Combine harvester cuts high detection device of stubble Download PDFInfo
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- CN212413857U CN212413857U CN202021748225.2U CN202021748225U CN212413857U CN 212413857 U CN212413857 U CN 212413857U CN 202021748225 U CN202021748225 U CN 202021748225U CN 212413857 U CN212413857 U CN 212413857U
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Abstract
The utility model discloses a combine cuts stubble height detection device, including the profile modeling layer board, the rotation axis, sensor swing arm and angle sensor, the profile modeling layer board links to each other with the rotation axis, profile modeling layer board and rotation axis all are located combine's header bottom, the profile modeling layer board can offset with cutting the stubble, set up the elastic component between profile modeling layer board and combine's the header, the elastic component is in by compression state, the rotation axis rotationally links to each other with combine's header, the rotation axis links to each other with the sensor swing arm transmission, the rotation axis can drive the sensor and rotate, the sensor swing arm links to each other with angle sensor, angle sensor can detect the turned angle of sensor swing arm. When the combine harvester works, the profiling supporting plate is abutted against the cut stubble, the profiling supporting plate drives the rotating shaft to rotate along with the change of the height of the cut stubble, the rotating shaft transmits the angle change to the angle sensor through the sensor swing arm, and preparation can be made for the subsequent height adjustment of the header of the combine harvester.
Description
Technical Field
The utility model relates to agricultural machinery and peripheral supporting facility technical field especially relate to a combine harvester cuts stubble height detection device.
Background
Along with the proposition and the continuous development of accurate agriculture and wisdom agriculture, the importance of agricultural machine unmanned, automatic in the agricultural machinery field is more and more outstanding, will improve the precision of farmland operation when alleviateing operation personnel intensity of labour. As an agricultural machine widely applied to the agricultural field, the combine harvester has the advantages that the height of the cut stubble is greatly fluctuated due to the fact that the traditional manual control header is lifted during operation, and the crop harvesting is adversely affected by the fact that the cut stubble is too high or too low.
Chinese patent publication No. CN102282963A discloses an intelligent stubble height detecting device, which adopts a pipe sleeve installed between a harvester body and a header and provided with a slide pipe and a package thereof and an internal reed switch array to output header height signals, so as to measure the stubble height of the harvester and prepare for subsequent processing and analysis of the signals. The device has high sensitivity and high measurement accuracy, but agricultural machinery can generate large mechanical vibration in the driving process, the mechanical vibration easily causes the damage of the sealing property to the reed pipe or the sensitivity is changed due to the generated mechanical pressure, and the service life and the measurement accuracy are reduced.
Therefore, how to change the current situation that the combine harvester cannot accurately measure the stubble height in the prior art becomes a problem to be solved by the technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a combine cuts high detection device of stubble to solve the problem that above-mentioned prior art exists, make combine can accurately detect and cut the stubble height, and improve data measurement accuracy.
In order to achieve the above object, the utility model provides a following scheme: the utility model provides a combine harvester cuts stubble height detection device, including profile modeling layer board, rotation axis, sensor swing arm and angle sensor, the profile modeling layer board with the rotation axis links to each other, the profile modeling layer board with the rotation axis all is located combine harvester's header bottom, the profile modeling layer board can offset with cutting the stubble, set up the elastic component between profile modeling layer board and combine harvester's the header, the elastic component is in by compression state, the rotation axis rotationally links to each other with combine harvester's header, the rotation axis with the sensor swing arm transmission links to each other, the rotation axis can drive the sensor rotates, the sensor swing arm with angle sensor links to each other, angle sensor can detect the turned angle of sensor swing arm.
Preferably, the rotating shaft is connected with the sensor swing arm through a fork, the rotating shaft is connected with the fork, the fork is provided with a sliding groove, one end, far away from the angle sensor, of the sensor swing arm is provided with a connecting column, and the connecting column is slidably arranged in the sliding groove.
Preferably, the angle sensor is fixed on a header of the combine harvester by using a bracket of a few types.
Preferably, the profile modeling layer board is dustpan column structure, the profile modeling layer board include the bottom plate and with backplate, two curb plates that the bottom plate links to each other, two the curb plate respectively with the both ends of backplate link to each other, the backplate the curb plate all with the bottom plate is mutually perpendicular, the bottom plate can offset with cutting the stubble, the opening orientation of profile modeling layer board sets up towards the header direction of keeping away from combine.
Preferably, a support seat is arranged on the back plate, and the support seat is connected with the rotating shaft.
Preferably, the supporting seat is of a split structure, and the supporting seat is detachably connected with the back plate.
Preferably, the elastic part is a hinge spring, the elastic part is sleeved outside the rotating shaft, and the profiling supporting plate and the cutting platform of the combine harvester are respectively abutted against the elastic part.
Preferably, a linear bearing is arranged on a header of the combine harvester, and the rotating shaft penetrates through the linear bearing to be in transmission connection with the sensor swing arm.
Preferably, the number of the angle sensors is two, the two angle sensors are respectively arranged at two ends of the rotating shaft, and the number of the sensor swing arms is consistent with that of the angle sensors and corresponds to the angle sensors one by one.
Preferably, the effective travel of the angle sensor is 60 °.
The utility model discloses for prior art gain following technological effect: the utility model discloses a combine harvester cuts stubble height detection device, including the profile modeling layer board, the rotation axis, sensor swing arm and angle sensor, the profile modeling layer board links to each other with the rotation axis, profile modeling layer board and rotation axis all are located combine harvester's header bottom, the profile modeling layer board can offset with cutting the stubble, set up the elastic component between profile modeling layer board and combine harvester's the header, the elastic component is in by compression state, the rotation axis rotationally links to each other with combine harvester's header, the rotation axis links to each other with the sensor swing arm transmission, the rotation axis can drive the sensor and rotate, the sensor swing arm links to each other with angle sensor, angle sensor can detect the turned angle of sensor swing arm. The utility model discloses a combine harvester cuts stubble height detecting device, when the combine harvester operation, the profile modeling layer board with cut stubble looks butt, the profile modeling layer board is along with cutting the change of stubble height and then drive rotation axis rotation, the rotation axis passes through the sensor swing arm with the angle change and transmits for angle sensor. The utility model discloses a combine harvester cuts stubble height detection device, compact structure, strong adaptability sets up the elastic component between profile modeling layer board and combine harvester's header, realizes that operating personnel accomplishes the measurement to cutting the stubble height under the operation environment of difference and great mechanical vibration, can be for follow-up header altitude mixture control to combine harvester and prepare.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.
FIG. 1 is a schematic structural view of a stubble height detecting device of a combine harvester of the present invention;
FIG. 2 is an enlarged schematic view of a part of the structure of the stubble height detecting device of the combine harvester of the present invention;
FIG. 3 is a schematic view of the stubble height detecting device of the combine harvester of the present invention;
wherein, 1 is a profiling supporting plate, 101 is a bottom plate, 102 is a back plate, 103 is a side plate, 2 is a rotating shaft, 3 is a sensor swing arm, 4 is an angle sensor, 5 is an elastic part, 6 is a fork frame, 7 is a sliding chute, 8 is a connecting column, 9 is a bracket with a shape of Chinese character 'ji', 10 is a supporting seat, 11 is a linear bearing, 12 is a cutting table of the combine harvester, and AC is the length (mm) of the center point of the rotating shaft from the angle sensor; AB is the length (mm) of the swing arm of the angle sensor; CD is the profile pallet height (mm); h is the height (mm) from the bottom of the profiling supporting plate to the cutting knife.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model aims at providing a combine cuts high detection device of stubble to solve the problem that above-mentioned prior art exists, make combine can accurately detect and cut the stubble height, and improve data measurement accuracy.
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
Please refer to fig. 1-3, wherein fig. 1 is a schematic structural diagram of the stubble height detecting device of the combine harvester of the present invention, fig. 2 is an enlarged schematic structural diagram of a part of the stubble height detecting device of the combine harvester of the present invention, and fig. 3 is a schematic principle diagram of the stubble height detecting device of the combine harvester of the present invention.
The utility model provides a combine harvester cuts stubble height detection device, including profile modeling layer board 1, rotation axis 2, sensor swing arm 3 and angle sensor 4, profile modeling layer board 1 links to each other with rotation axis 2, profile modeling layer board 1 and rotation axis 2 all are located combine harvester's header 12 bottom, profile modeling layer board 1 can offset with cutting the stubble, set up elastic component 5 between profile modeling layer board 1 and combine harvester's header 12, elastic component 5 is in by compression state, rotation axis 2 rotationally links to each other with combine harvester's header 12, rotation axis 2 links to each other with the transmission of sensor swing arm 3, rotation axis 2 can drive the sensor and rotate, sensor swing arm 3 links to each other with angle sensor 4, angle sensor 4 can detect the turned angle of sensor swing arm 3.
The utility model discloses a combine harvester cuts stubble height detecting device, when the combine harvester operation, profile modeling layer board 1 with cut stubble looks butt, profile modeling layer board 1 is along with cutting the change of stubble height and then drive rotation axis 2 and rotate, rotation axis 2 with the angular variation through 3 transmissions of sensor swing arm for angle sensor 4. The utility model discloses a combine harvester cuts stubble height detection device, compact structure, strong adaptability sets up elastic component 5 between profiling layer board 1 and combine harvester's header 12, improves device stability, realizes that operating personnel accomplishes the measurement to cutting the stubble height under the operation environment of difference and great mechanical vibration, can prepare for follow-up header 12 altitude mixture control to combine harvester.
Specifically, the rotating shaft 2 is connected with the sensor swing arm 3 through the fork 6, the rotating shaft 2 is connected with the fork 6, the fork 6 is provided with a chute 7, one end of the sensor swing arm 3, which is far away from the angle sensor 4, is provided with a connecting column 8, and the connecting column 8 is slidably arranged in the chute 7. The rotating shaft 2, the fork frame 6 and the sensor swing arm 3 form a crank block structure, so that the rotating shaft 2 transmits angle change to the angle sensor 4, the structure is stable and reliable, and the accuracy of data measurement is further improved.
In the present embodiment, the angle sensor 4 is fixed on the header 12 of the combine harvester by using the bracket 9, and the bracket 9 provides a stable fixed support for the angle sensor 4 and does not affect the connection between the sensor swing arm 3 and the angle sensor 4.
Wherein, profile modeling layer board 1 is dustpan column structure, profile modeling layer board 1 includes bottom plate 101 and the backplate 102 that links to each other with bottom plate 101, two curb plates 103 link to each other with the both ends of backplate 102 respectively, be the U-shaped after two curb plates 103 and backplate 102 are connected, backplate 102, curb plate 103 all are mutually perpendicular with bottom plate 101, bottom plate 101 can offset with cutting the stubble, the opening orientation of profile modeling layer board 1 sets up towards 12 directions of header of keeping away from combine, the height of curb plate 103 is played by backplate 102 and is reduced gradually.
More specifically, a support 10 is provided on the back plate 102, the support 10 is connected to the rotating shaft 2, the profile modeling splint 1 is connected to the rotating shaft 2 by the support 10, and the rotating shaft 2 passes through the side plate 103 and is connected to the support 10.
In this embodiment, the supporting seat 10 is a split structure, and is easy to assemble and disassemble, and the supporting seat 10 is detachably connected to the back plate 102, so that the device can be cleaned and maintained conveniently.
In addition, elastic component 5 is the hinge spring, and elastic component 5 suit is in the outside of rotation axis 2, and profile modeling layer board 1, combine's header 12 respectively offset with elastic component 5, and elastic component 5 has improved the stability of device, avoids taking place to rock the dislocation scheduling problem in the device course of operation, improves the measuring result accuracy.
In other embodiments of the present invention, a linear bearing 11 is disposed on the cutting table 12 of the combine, and the rotating shaft 2 passes through the linear bearing 11 and is connected to the sensor swing arm 3 in a transmission manner.
Further, the number of the angle sensors 4 is two, the two angle sensors 4 are respectively arranged at two ends of the rotating shaft 2, and the number of the sensor swing arms 3 is consistent with that of the angle sensors 4 and corresponds to one another. During operation, the angle sensors 4 at the two ends of the rotating shaft 2 receive the stubble cutting height data at the left end and the right end simultaneously, and the two sets of data are compared and analyzed, so that the accuracy of the measuring result is improved.
In order to ensure that the angle sensor 4 can work properly, the effective stroke of the angle sensor 4 is 60 °.
The formula for converting the angle sensor 4 into the height after measuring the angle is listed below:
H＝CD*sin(θ4-θ3+θ2)
where AC is the length (mm) of the rotation axis 2 from the center point of the angle sensor 4; AB is the length (mm) of the swing arm 3 of the angle sensor 4; CD is the height (mm) of the copying splint 1; h is the height (mm) from the bottom of the profiling supporting plate 1 to a cutting knife, and the angles in the formula are specifically shown in figure 3. The utility model discloses a combine harvester cuts stubble height detecting device, stable in structure is reliable, and the conversion formula is simple, further improves data measurement's precision.
The utility model discloses a concrete example is applied to explain the principle and the implementation mode of the utility model, and the explanation of the above example is only used to help understand the method and the core idea of the utility model; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.
Claims (10)
1. The utility model provides a combine harvester cuts high detection device of stubble which characterized in that: including profile modeling layer board, rotation axis, sensor swing arm and angle sensor, the profile modeling layer board with the rotation axis links to each other, the profile modeling layer board with the rotation axis all is located combine's header bottom, the profile modeling layer board can offset with the cutting stubble, set up the elastic component between profile modeling layer board and combine's the header, the elastic component is in by compression state, the rotation axis rotationally links to each other with combine's header, the rotation axis with the transmission of sensor swing arm links to each other, the rotation axis can drive the sensor rotates, the sensor swing arm with angle sensor links to each other, angle sensor can detect the turned angle of sensor swing arm.
2. The stubble height detection device of a combine harvester according to claim 1, characterized in that: the rotating shaft is connected with the sensor swing arm through a fork, the rotating shaft is connected with the fork, the fork is provided with a sliding groove, one end, far away from the angle sensor, of the sensor swing arm is provided with a connecting column, and the connecting column is slidably arranged in the sliding groove.
3. The stubble height detection device of a combine harvester according to claim 2, characterized in that: the angle sensor is fixed on a header of the combine harvester by using a bracket with a shape of a Chinese character 'ji'.
4. The stubble height detection device of a combine harvester according to claim 1, characterized in that: the profile modeling layer board is dustpan column structure, the profile modeling layer board include the bottom plate and with backplate, two curb plates that the bottom plate links to each other, two the curb plate respectively with the both ends of backplate link to each other, the backplate the curb plate all with the bottom plate is mutually perpendicular, the bottom plate can offset with cutting the stubble, the header direction setting of combine is kept away from to the opening orientation of profile modeling layer board.
5. The stubble height detection device of a combine harvester according to claim 4, characterized in that: the back plate is provided with a supporting seat, and the supporting seat is connected with the rotating shaft.
6. A stubble height detection device of a combine harvester according to claim 5, characterized in that: the supporting seat is of a split structure and is detachably connected with the back plate.
7. The stubble height detection device of a combine harvester according to claim 1, characterized in that: the elastic piece is a hinge spring, the elastic piece is sleeved outside the rotating shaft, and the profiling supporting plate and a header of the combine harvester are respectively abutted against the elastic piece.
8. The stubble height detection device of a combine harvester according to claim 1, characterized in that: a cutting table of the combine harvester is provided with a linear bearing, and the rotating shaft penetrates through the linear bearing to be connected with the sensor swing arm in a transmission mode.
9. The stubble height detection device of a combine harvester according to any one of claims 1 to 8, wherein: the number of the angle sensors is two, the two angle sensors are respectively arranged at two ends of the rotating shaft, and the number of the sensor swing arms is consistent with that of the angle sensors and corresponds to the number of the angle sensors one to one.
10. The stubble height detection device of a combine harvester according to claim 1, characterized in that: the effective travel of the angle sensor is 60 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021748225.2U CN212413857U (en) | 2020-08-20 | 2020-08-20 | Combine harvester cuts high detection device of stubble |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021748225.2U CN212413857U (en) | 2020-08-20 | 2020-08-20 | Combine harvester cuts high detection device of stubble |
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| CN212413857U true CN212413857U (en) | 2021-01-29 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114467504A (en) * | 2022-01-14 | 2022-05-13 | 江苏大学 | Header height regulating device and method for reducing seed loss and harvester |
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2020
- 2020-08-20 CN CN202021748225.2U patent/CN212413857U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114467504A (en) * | 2022-01-14 | 2022-05-13 | 江苏大学 | Header height regulating device and method for reducing seed loss and harvester |
| CN114467504B (en) * | 2022-01-14 | 2024-03-22 | 江苏大学 | Header height regulating and controlling device and method for reducing grain loss and harvester |
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