CN211580700U - Ground height detection device and harvester provided with same - Google Patents
Ground height detection device and harvester provided with same Download PDFInfo
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- CN211580700U CN211580700U CN201921978797.7U CN201921978797U CN211580700U CN 211580700 U CN211580700 U CN 211580700U CN 201921978797 U CN201921978797 U CN 201921978797U CN 211580700 U CN211580700 U CN 211580700U
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Abstract
The utility model provides a ground height detection device and a harvester provided with the same, which comprises a ground profiling component, a corner amplifying mechanism, an angle sensor and a control unit; the ground profiling component comprises profiling components and a swinging arm which are symmetrically arranged, and each set of profiling components comprises a sliding plate, a first connecting rod and a second connecting rod; the sliding plate comprises a sliding rod and a protruding plate; the sliding plate is connected with one end of a first connecting rod, and the other end of the first connecting rod is connected with one end of a second connecting rod; the other ends and the middle parts of the two second connecting rods are respectively and rotatably connected through a rotating shaft II; the rotating shaft II is connected with one end of the swing arm respectively, and the other end of the rotating arm is connected with the rotating shaft I; the corner amplifying mechanism is connected with the rotating shaft I through a coupler; the angle sensor is connected with the corner amplifying mechanism; the control unit is connected with the angle sensor. The utility model discloses can avoid the influence of stone, clod to a certain extent to increase corner mechanism of amplification, improve the precision that ground height detected.
Description
Technical Field
The utility model belongs to the field of agricultural machinery, concretely relates to ground height detection device and installation device's harvester.
Background
The research on the mechanization of leaf vegetable harvesting in China is late, and the current mature machines for harvesting the leaf vegetables are few. With the improvement of the living standard of people, leaf vegetables such as small green vegetables and Chinese little greens are required to have high quality and beautiful appearance. In contrast, the ground height detection device or component with a profiling plate such as CN 109348798A or a profiling wheel cannot ensure the accuracy of measured data due to the influence of stones and soil blocks on the ridge surface, and for leaf vegetables with the length of 5-10mm at the harvesting part, the ground height needs to be accurately detected to adjust the height of the cutting table, so that the cutting stubbles are ensured to be tidy, the appearance is attractive, and the harvesting quality is improved.
SUMMERY OF THE UTILITY MODEL
To the technical problem, the utility model provides a ground height detection device and installation device's harvester. Adopt novel ground profile modeling part to replace profiling plate or profile modeling roller, the slide of ground profile modeling part contact ridge face part is equipped with the rumble board, the middle part uplift of rumble board, the front end is most advanced, can avoid the stone to a certain extent, the influence of soil block, and increase the corner mechanism of amplification, enlarge ground profile modeling part's swing arm turned angle, make angle sensor can record the corner accurately, improve the precision that ground height detected, provide the reference for the altitude mixture control of header, make the better cutting vegetables of harvester, the leaf dish stubble is neat, the results efficiency of leaf dish harvester has been improved, and simple structure, and convenient operation.
The utility model provides a technical scheme that its technical problem adopted is: a ground height detection device comprises a ground profiling component, a corner amplifying mechanism, an angle sensor and a control unit;
the ground profiling component comprises profiling components and a swinging arm which are symmetrically arranged, and each set of profiling components comprises a sliding plate, a first connecting rod and a second connecting rod; the slide plate comprises a slide rod and a bulge plate; the two sides of the ridge plate are respectively provided with a sliding rod, the middle part of the ridge plate is raised, and the front end of the ridge plate is a tip end; the middle of the first connecting rod is of a bending structure; the sliding plate is connected with one end of a first connecting rod, and the other end of the first connecting rod is connected with one end of a second connecting rod; the other ends and the middle parts of the two second connecting rods are respectively and rotatably connected through a rotating shaft II; the rotating shaft II is connected with one end of the swing arm respectively, and the other end of the rotating arm is connected with the rotating shaft I;
the corner amplifying mechanism is connected with the rotating shaft I through a coupler;
the angle sensor is connected with the corner amplifying mechanism;
the control unit is connected with the angle sensor.
In the scheme, each group of profiling components further comprises a spring connecting seat and a spring;
the spring connecting seat is arranged in the middle of the second connecting rod; one end of the spring is connected with the rotating shaft II at the other end of the second connecting rod, and the other end of the spring is connected with the spring connecting seat.
In the scheme, the device also comprises a connecting seat;
the upper part of the connecting seat is used for being connected with the rack, and the lower part of the connecting seat is hinged with the swing arm through a rotating shaft I.
In the above scheme, the corner amplifying mechanism comprises a gear ring, a gear ring driving wheel, a planet carrier, a planet wheel, a sun wheel and a sun wheel transmission shaft;
the rotating shaft I is connected with a gear ring driving wheel, the gear ring driving wheel is connected with a gear ring, the gear ring driving wheel drives the gear ring to rotate, the planetary gears are arranged on a planetary carrier, the gear ring is internally meshed with three planetary gears, the planetary gears are externally meshed with a sun gear, and the sun gear is connected with a sun gear transmission shaft; the sun gear transmission shaft is connected with the angle sensor.
In the scheme, the joints of the first connecting rods and the second connecting rods are provided with the corresponding through holes, and the lengths of the first connecting rods and the second connecting rods can be adjusted through the bolt connection.
In the scheme, one end of the first connecting rod is connected with the sliding plate through the bolt I, and the other end of the first connecting rod is connected with the second connecting rod through the bolt II.
In the above scheme, the device further comprises a connecting plate;
the planet carrier and the angle sensor are respectively arranged on the connecting plate.
A harvester comprises the ground height detection device.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a novel ground profile modeling part replaces shape plate or profile modeling roller, the slide of ground profile modeling part contact ridge face part is equipped with a long board, the middle part uplift of long board, the front end is most advanced, can avoid the stone to a certain extent, the influence of soil block, and increase the corner mechanism of amplification, the swing arm turned angle to ground profile modeling part is enlargied, make angle sensor can record the corner accurately, improve the precision that ground height detected, provide data support for the altitude mixture control of header, make the better cutting vegetables of harvester, the leaf dish stubble is neat, the results efficiency of leaf dish harvester has been improved, and simple structure, and convenient operation.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic view of an overall installation structure of an embodiment of the present invention;
fig. 2 is an isometric view of a ground engaging member according to an embodiment of the present invention;
fig. 3 is an isometric view of a skateboard in accordance with an embodiment of the present invention;
FIG. 4 is a schematic view of the connection between the ground-profiling component and the angle-enlarging mechanism according to the embodiment of the present invention;
fig. 5 is an isometric view of a corner magnification mechanism according to an embodiment of the present invention;
fig. 6 is a schematic view of the internal structure of the angle enlarging mechanism according to the embodiment of the present invention;
fig. 7 is a schematic view of the working state of the ground-profiling component according to an embodiment of the present invention;
fig. 8 is a schematic view showing an operating state of the ground-following member according to the embodiment of the present invention.
In the figure: 1. a ground profiling component: 101. a slide plate; 102. a bolt I; 103. a first connecting rod; 104. a bolt II; 105. a connecting seat; 106. a spring connecting seat; 107. a rotating shaft I; 108. a swing arm; 109. a rotating shaft II; 110. a spring; 111. a second connecting rod; 2. a coupling; 3. the corner amplifying mechanism: 301. a ring gear; 302. a gear ring driving wheel; 303. a planet carrier; 304. a planet wheel; 305. a sun gear; 306. a sun gear drive shaft; 4. an angle sensor; 5. a connecting plate; 6. a header; 7. and a frame.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "axial", "radial", "vertical", "horizontal", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Fig. 1 shows a preferred embodiment of the ground height detecting device of the present invention. The ground height detection device comprises a ground profiling component 1, a corner amplifying mechanism 3, an angle sensor 4 and a control unit.
As shown in fig. 2 and 3, the ground profiling part 1 comprises symmetrically mounted profiling assemblies and swing arms 108, each profiling assembly comprising a sled 101, a first connecting rod 103 and a second connecting rod 111; the slide 101 includes a slide rod 1011 and a keel 1012; the two sides of the ridge plate 1012 are respectively provided with a sliding rod 1011, the middle of the ridge plate 1012 is raised, and the front end of the ridge plate 1012 is a tip end, so that the sliding plates 101 float on the ridge surface to advance, and can better avoid obstacles such as stones, small soil blocks and the like, and the distance between two adjacent sliding plates 101 can be set according to the ridge width. The middle of the first connecting rod 103 is of a bending structure, and the bending angle of the first connecting rod 103 is determined according to the installation angle of the rack 7 and the included angle between the rack 7 and the ground. The sliding plate 101 is connected with one end of a first connecting rod 103, and the other end of the first connecting rod 103 is connected with one end of a second connecting rod 111; the other ends and the middle parts of the two second connecting rods 111 are respectively rotatably connected through a rotating shaft II 109; the rotating shafts II 109 are respectively connected with one end of the swing arm 108, and the other end of the swing arm 108 is connected with the rotating shaft I107.
According to the present embodiment, preferably, one end of the first connecting rod 103 is connected to the sliding plate 101 through a bolt i 102, and the other end is connected to the second connecting rod 111 through a bolt ii 104.
According to the present embodiment, each set of profile assemblies further preferably includes a spring attachment base 106 and a spring 110; the spring connecting seat 106 is installed in the middle of the second connecting rod 111; one end of the spring 110 is connected with the rotating shaft II 109 at the other end of the second connecting rod 111, and the other end of the spring 110 is connected with the spring connecting seat 106. The spring 110 connects the second connecting rod and the rotating shaft II 109, and a flexible mechanism is constructed, so that the ground profiling component 1 can well adapt to the fluctuation of the ground.
According to the present embodiment, it is preferable that the connector base 105 is further included; the upper part of the connecting base 105 is used for connecting with the frame 7, and the lower part is hinged with the swing arm 108 through a rotating shaft I107.
According to the embodiment, preferably, a plurality of corresponding through holes are formed at the joints of the first connecting rods 103 and the second connecting rods 111, and the lengths between the first connecting rods 103 and the second connecting rods 111 can be adjusted according to the distance between the ridge surface and the bottom surface of the harvester through bolt connection.
According to the embodiment, preferably, the middle part of the second connecting rod is provided with a plurality of limiting holes, so that the installation positions of the swing arm 108 and the second connecting rod 111 can be adjusted according to the actual position of the connecting seat 5 on the frame 7.
According to the present embodiment, it is preferable to further include a connection plate 5; the planet carrier 303 and the angle sensor 4 are respectively mounted on the connecting plate 5.
As shown in fig. 4, the rotation angle amplification mechanism 3 is connected with a rotating shaft i 107 through a coupling 2; the angle sensor 4 is connected with the corner amplifying mechanism 3; the control unit is connected to an angle sensor 4.
As shown in fig. 5 and 6, according to the present embodiment, it is preferable that the rotation angle amplification mechanism 3 includes a ring gear 301, a ring gear drive wheel 302, a carrier 303, a planetary gear 304, a sun gear 305, and a sun gear transmission shaft 306; the rotating shaft I107 is connected with a gear ring driving wheel 302, the gear ring driving wheel 302 is fixedly connected with a gear ring 301, the gear ring driving wheel 302 drives the gear ring 301 to rotate, the planetary wheels 304 are mounted on a planet carrier 303, the gear ring 301 is internally meshed with three planetary wheels 304, the planetary wheels 304 are externally meshed with a sun wheel 305, and the sun wheel 305 is connected with a sun wheel transmission shaft 306 and rotates along with the rotation of the sun wheel 305; the sun wheel transmission shaft 306 is connected with the angle sensor 4 and receives a rotation angle signal of the transmission shaft 306, and the corner amplifying mechanism 3 and the angle sensor 4 are fixed on the connecting plate 5; the connecting plate 5 is fixed on the frame 7. The shaft coupling 2 transmits the rotation of the rotating shaft I107, the gear ring 301, the planet wheel 304 and the sun wheel 305 are meshed with each other, the rotating angle is amplified by k times according to the gear ratio of the gear ring 301 to the sun wheel 305, and then the rotating angle is measured by the angle sensor 4 and transmitted to the control unit and can be displayed through the display screen. Preferably, the gear can be a straight gear, a helical gear, a ratchet wheel and the like, and can be meshed, and the gear ratio is in inverse proportion to the rotating speed.
The sliding plate 101 of the ground profiling component 1 is contacted with the ridge surface, and the ridge plate 1012 floats on the ridge surface and moves forwards; slide 101 is along with the arch or the sunken on ground, drives swing arm 108 through first connecting rod 103 and second connecting rod 111 and rotates, and swing arm 108 drives pivot I107 and rotates, and pivot I107 enlargies pivoted angle through corner mechanism 3 of amplification, and angle sensor 4 measures the angle after enlargiing to transmit for the control unit, the control unit calculates and obtains the ground height variation h who uses ground as the benchmark.
The ground profiling component converts vertical height change into rotation angle change in the following manner: when the leaf vegetable harvester with the ground detection device enters a working area, the ground profiling component 1 is in contact with the ridge surface in a free state, and the initial rotation angle of the swing arm 108 is calibrated to be
The swing arm 108 rotates at an angle of about
Variation of the rotation angle of the swing arm 108
Fig. 7 shows the ground following the ground projection of the ground-following member 1, the swing arm 108 will rotate counterclockwise,
fig. 8 shows that when the ground is sunken, the ground profiling part 1 loses support due to the sunken ground and moves downwards under the action of self gravity until the ground is contacted with the sunken ridge surface again, at which time the swing arm 108 rotates clockwise,
wherein h is the ground height variation based on the ground,
α is an acute angle of the bending angle of the first connecting rod 103, L is a central distance from the rotating shaft I107 to the rotating shaft II 109, i.e. the length of the swing arm 108, and the swing arm 108 is fixedly connected with the rotating shaft I107, and the change of the rotating angle of the swing arm 108 is the change of the rotating angle of the rotating shaft I107.
The swing arm 108 amplifies the rotation angle by the rotation angle amplifying mechanism 3, and the amount of change of the rotation angle of the swing arm 108
Equal to the rotation angle of the ring gear 301
Calculated by the following formula:
k is the angle of rotation magnification, n1Number of teeth of ring gear 301, n2The number of teeth of the sun gear 305,
The corner amplifying mechanism 3 is connected with the ground profiling component 1 through a coupler 2, receives rotation through a gear ring driving wheel 302, drives a gear ring 301 to rotate, and meanwhile fixes the corner amplifying mechanism 3 and a connecting plate 5 through a planet carrier 303; the intermeshing of ring gear 301, planet wheel 304, sun gear 305 utilizes the gear drive principle, enlargies turned angle, transmits angle sensor 4 by sun gear transmission shaft 306 again for angle sensor 4 measures data more accurately, feeds back the display screen, reaches the purpose of the 6 height of accurate regulation header.
Example 2
A harvester comprising the ground height detecting device of embodiment 1, therefore having the advantages of embodiment 1, and will not be described herein.
According to the preferred embodiment, the harvester is suitable for harvesting leaf vegetables, the ground profiling components 1 are symmetrically arranged right and left under the frame 7 of the harvester, and the connecting seats 105 are fixed on the bottom surface of the frame 7 in a straight and straight manner; the corner amplifying mechanism 3 is fixed on the side surface of the frame 7 through a connecting plate 5. The first connecting rod 103, the swing arm 108 and the second connecting rod 111 are rod groups, the bolts I102 and II 104 are fixed points, the rotating shafts I107 and II 109 are hinged points, the spring 110 provides a buffering effect, a multi-rod flexible mechanism is constructed, and the sliding plate 101 can move along with the fluctuation of the ground.
In this embodiment, for example, the Chinese little greens are taken as an example, and the front end of the sliding plate 101 is determined to be tilted and the middle part of the sliding plate is designed to be hollow according to the Chinese little greens plant type and the ridge surface flatness; the bending degree of the first connecting rod 103 is an acute angle formed by the frame 9 and the ridge surface; and then fixed with the second connecting rod 111 by the bolt ii 104. The second connecting rod 111 rotates along with the movement of the sliding plate 101, meanwhile, the rotation of the rotating shaft I107 is transmitted to the corner amplifying mechanism 3 through the coupler 2, the rotating angle is amplified, and the rotating angle of the sun gear transmission shaft 306, namely the amplified rotating angle, is measured by the angle sensor 4; and the data are fed back to the control unit and displayed on a display screen to provide data for regulating and controlling the cutting table 6.
It should be understood that although the present description has been described in terms of various embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and those skilled in the art will recognize that the embodiments described herein may be combined as suitable to form other embodiments, as will be appreciated by those skilled in the art.
The above detailed description is only for the purpose of illustrating the practical embodiments of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent embodiments or modifications that do not depart from the technical spirit of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. The ground height detection device is characterized by comprising a ground copying component (1), a corner amplifying mechanism (3), an angle sensor (4) and a control unit;
the ground profiling component (1) comprises profiling components and a swing arm (108) which are symmetrically arranged, and each profiling component comprises a sliding plate (101), a first connecting rod (103) and a second connecting rod (111); the slide plate (101) comprises a slide rod (1011) and a keel (1012); the two sides of the bulge plate (1012) are respectively provided with a sliding rod (1011), the middle part of the bulge plate (1012) bulges, and the front end of the bulge plate (1012) is a tip end; the middle of the first connecting rod (103) is of a bending structure; the sliding plate (101) is connected with one end of a first connecting rod (103), and the other end of the first connecting rod (103) is connected with one end of a second connecting rod (111); the other ends and the middle parts of the two second connecting rods (111) are respectively rotatably connected through a rotating shaft II (109); the rotating shaft II (109) is respectively connected with one end of the swing arm (108), and the other end of the swing arm (108) is connected with the rotating shaft I (107);
the corner amplifying mechanism (3) is connected with a rotating shaft I (107) through a coupler (2);
the angle sensor (4) is connected with the corner amplifying mechanism (3);
the control unit is connected with an angle sensor (4).
2. The ground level detection device of claim 1, wherein each set of profile assemblies further comprises a spring attachment seat (106) and a spring (110);
the spring connecting seat (106) is arranged in the middle of the second connecting rod (111); one end of the spring (110) is connected with the rotating shaft II (109) at the other end of the second connecting rod (111), and the other end of the spring (110) is connected with the spring connecting seat (106).
3. The ground level detecting device according to claim 1, further comprising a connecting seat (105);
the upper part of the connecting seat (105) is used for being connected with the rack (7), and the lower part of the connecting seat is hinged with the swing arm (108) through a rotating shaft I (107).
4. The ground level detection device according to claim 1, characterized in that the rotation angle amplification mechanism (3) comprises a ring gear (301), a ring gear driving wheel (302), a planet carrier (303), a planet wheel (304), a sun wheel (305) and a sun wheel transmission shaft (306);
the rotating shaft I (107) is connected with a gear ring driving wheel (302), the gear ring driving wheel (302) is connected with a gear ring (301), the gear ring driving wheel (302) drives the gear ring (301) to rotate, the planetary gear (304) is installed on a planet carrier (303), the gear ring (301) is internally meshed with three planetary gears (304), the planetary gears (304) are externally meshed with a sun gear (305), and the sun gear (305) is connected with a sun gear transmission shaft (306); the sun wheel transmission shaft (306) is connected with the angle sensor (4).
5. The ground height detection device according to claim 1, wherein the connection position of the first connection rod (103) and the second connection rod (111) is provided with a plurality of corresponding through holes, and the length between the first connection rod (103) and the second connection rod (111) can be adjusted through bolt connection.
6. The ground height detecting device according to claim 1, wherein one end of the first connecting rod (103) is connected to the sliding plate (101) by a bolt i (102), and the other end is connected to the second connecting rod (111) by a bolt ii (104).
7. The ground level detection device according to claim 4, further comprising a connection plate (5);
the planet carrier (303) and the angle sensor (4) are respectively arranged on the connecting plate (5).
8. A harvester comprising the ground height detection device of any one of claims 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921978797.7U CN211580700U (en) | 2019-11-15 | 2019-11-15 | Ground height detection device and harvester provided with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921978797.7U CN211580700U (en) | 2019-11-15 | 2019-11-15 | Ground height detection device and harvester provided with same |
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| Publication Number | Publication Date |
|---|---|
| CN211580700U true CN211580700U (en) | 2020-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921978797.7U Expired - Fee Related CN211580700U (en) | 2019-11-15 | 2019-11-15 | Ground height detection device and harvester provided with same |
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| Country | Link |
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| CN (1) | CN211580700U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111010992A (en) * | 2019-11-15 | 2020-04-17 | 江苏大学 | Ground height detection device and method and harvester provided with device |
| CN117280938A (en) * | 2023-10-07 | 2023-12-26 | 无锡悦田农业机械科技有限公司 | Ridge surface height sensing device of harvester and harvesting height adjusting method |
-
2019
- 2019-11-15 CN CN201921978797.7U patent/CN211580700U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111010992A (en) * | 2019-11-15 | 2020-04-17 | 江苏大学 | Ground height detection device and method and harvester provided with device |
| CN111010992B (en) * | 2019-11-15 | 2024-06-07 | 江苏大学 | Ground height detection device and method and harvester with device |
| CN117280938A (en) * | 2023-10-07 | 2023-12-26 | 无锡悦田农业机械科技有限公司 | Ridge surface height sensing device of harvester and harvesting height adjusting method |
| CN117280938B (en) * | 2023-10-07 | 2024-04-30 | 无锡悦田农业机械科技有限公司 | Ridge surface height sensing device of harvester and harvesting height adjusting method |
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Granted publication date: 20200929 Termination date: 20211115 |