CN117716880A - Automatic copying device for corn harvester header - Google Patents
Automatic copying device for corn harvester header Download PDFInfo
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- CN117716880A CN117716880A CN202410172788.8A CN202410172788A CN117716880A CN 117716880 A CN117716880 A CN 117716880A CN 202410172788 A CN202410172788 A CN 202410172788A CN 117716880 A CN117716880 A CN 117716880A
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- 240000008042 Zea mays Species 0.000 title claims abstract description 32
- 235000002017 Zea mays subsp mays Nutrition 0.000 title claims abstract description 32
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 title claims abstract description 29
- 235000005822 corn Nutrition 0.000 title claims abstract description 29
- 238000001514 detection method Methods 0.000 claims abstract description 136
- 230000000712 assembly Effects 0.000 claims description 20
- 238000000429 assembly Methods 0.000 claims description 20
- 238000005259 measurement Methods 0.000 claims description 12
- 230000004044 response Effects 0.000 claims description 12
- 230000006698 induction Effects 0.000 claims description 11
- 239000010720 hydraulic oil Substances 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 235000016383 Zea mays subsp huehuetenangensis Nutrition 0.000 claims description 3
- 235000009973 maize Nutrition 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 6
- 238000003306 harvesting Methods 0.000 abstract description 6
- 239000000523 sample Substances 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000001276 controlling effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 239000010902 straw Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
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Abstract
The utility model relates to an automatic profiling device of corn harvester header, relates to the technical field of crop harvesting, and it includes frame, header, first detection subassembly, control assembly and adjusting part, the header with the frame is connected, first detection subassembly sets up on the header, and is used for surveying the unsmooth degree on the road surface in the frame direction of travel; the control assembly is arranged on the first detection assembly and used for controlling the adjusting assembly to adjust the height of the header; the adjusting component is arranged between the frame and the header and is used for adjusting the height of the header. The utility model has the effect of being convenient for adjust header height.
Description
Technical Field
The application relates to the technical field of crop harvesting, in particular to an automatic profiling device for a corn harvester header.
Background
The corn harvester is an agricultural implement for mechanically picking up corn, piling up corn, returning stalk to field, etc. The header refers to a mechanical part for harvesting corn in a corn harvester, and has the main functions of cutting corn stems and conveying the corn stems into a harvester of the machine so as to achieve the purpose of harvesting corn.
At present, a common corn harvester cuts corn straws by a blade rotating at a high speed, then conveys the cut corn straws to the rear of a header, places the corn straws by a conveying chain, and then after corn cobs pass through a snapping roll, the ears are separated from the corn cobs and lifted to a collecting box, so that harvesting is completed.
However, in the harvesting process, due to different ground topography, operators are difficult to regulate the height of the header in time, so that the header is easy to scratch with the ground.
Disclosure of Invention
In order to be convenient for adjust the height of header, this application provides a maize picker header automatic copying device.
The application provides an automatic copying device of maize picker header adopts following technical scheme:
the automatic profiling device for the corn harvester cutting table comprises a frame, a cutting table, a first detection assembly, a control assembly and an adjusting assembly, wherein the cutting table is connected with the frame, and the first detection assembly is arranged on the cutting table and is used for detecting the degree of concavity and convexity of a road surface in the running direction of the frame; the control assembly is arranged on the first detection assembly and used for controlling the adjusting assembly to adjust the height of the header; the adjusting component is arranged between the frame and the header and is used for adjusting the height of the header.
Through adopting above-mentioned technical scheme, the unsmooth degree on road surface on the first detection subassembly detection frame direction of traveling to with detection signal transmission to control assembly, control assembly is according to the detection signal received, and control adjustment assembly adjusts the height of header, thereby is convenient for adjust the height of header, and then makes the header be difficult for taking place to scratch with ground.
Optionally, the first detection assemblies are provided with two groups, and the two groups of first detection assemblies are respectively positioned at two sides of the header; the first detection assembly comprises a fixed rod, a detection box and a rough detection part, wherein the fixed rod is obliquely arranged, one end of the fixed rod is connected with one side of the header, which is close to the ground, and the other end of the fixed rod is fixedly connected with the detection box; the rough measurement part is arranged in the detection box and is used for detecting the road surface in the running direction of the frame.
Through adopting above-mentioned technical scheme, through increasing the quantity of first detection subassembly for the unsmooth degree on road surface can be detected more comprehensively to the device, thereby makes the device be difficult for receiving the trouble or the misjudgement of single first detection subassembly and arouses the mistake, and then has improved the accuracy that the device detected.
Optionally, the rough measurement part comprises a detection box, a piston plate, a first sliding rod, a first spring and a first pulley, wherein the detection box is fixedly connected to one side of the detection box, which is close to the fixed rod, and the axis direction of the detection box is the same as the axis direction of the detection box; the piston plate is connected in the detection box in a sliding way, and the sliding direction is the axial direction of the fixed rod; the first sliding rod is connected to one end of the piston plate, which is far away from the fixed rod, and one end of the first sliding rod, which is far away from the piston plate, is slidably arranged in the detection box in a penetrating manner, and is slidably arranged in the detection box in a penetrating manner; one end of the first spring is fixedly connected with one side of the piston plate, which is close to the fixed rod, and the other end of the first spring is fixedly connected with the detection box, and the first spring is always in a compressed state; the first pulley is rotatably connected to one end of the first sliding rod, which is far away from the piston plate, and is located at the outer side of the detection box.
Through adopting above-mentioned technical scheme, road surface extrusion first pulley, first pulley drive first slide bar and remove, and first slide bar drives the piston board and removes, because the unsmooth degree of road surface changes for the thrust that bears of first pulley changes, and makes the stroke size of piston board change, and the piston board transmits the detection signal to control assembly, thereby has improved the detection precision to the road surface, and then easily adjusts the height of header.
Optionally, the control components are provided with two groups, and the two groups of control components are in one-to-one correspondence with the two groups of first detection components; the control assembly comprises a control box, a floating plate and a floating ball, wherein the control box is vertically arranged and fixedly connected in the detection box, and the control box is communicated with the detection box; the floating plate is connected in the control box in a sliding manner, and the sliding direction is the vertical direction; the floating ball is fixedly connected below the floating plate; the floating plate is fixedly connected with a first induction block, a plurality of second induction blocks are embedded in the inner wall of the control box, the second induction blocks are uniformly distributed along the vertical direction, and the second induction blocks are located on one side, close to the first induction blocks, of the control box.
Through adopting above-mentioned technical scheme, first slide bar drives the piston board and removes, and the piston board transmits the detection signal to the control box, under buoyancy effect, and the floater drives the kickboard and removes, and the kickboard drives first response piece and removes, and first response piece and second response piece butt for the second response piece butt of first response piece and not co-altitude because the detection signal changes, and transmits control signal to adjusting part, thereby can improve the precision and the uniformity of device control better, and then easily adjust header height.
Optionally, the adjusting component comprises a controller and a hydraulic cylinder, the second sensing blocks in the two groups of control components are electrically connected with the controller, the second sensing blocks output sensing signals, the controller is fixedly connected to the header, and the controller is used for controlling the movable end of the hydraulic cylinder to move in response to the sensing signals output by the second sensing blocks; the movable end of the hydraulic oil cylinder is hinged with the header, and the fixed end of the hydraulic oil cylinder is hinged with the frame.
Through adopting above-mentioned technical scheme, first response piece and second response piece butt, second response piece output induction signal, the response signal of second response piece output is responded to the controller, and the expansion end of controller control hydraulic cylinder removes to easily carry out the altitude mixture control to the header, and then make the header be difficult for taking place to scratch with ground.
Optionally, the device further comprises second detection assemblies, wherein the second detection assemblies are provided with two groups, and the two groups of second detection assemblies are in one-to-one correspondence with the two groups of first detection assemblies; the second detection assembly comprises a driving part and a precise detection part, the driving part comprises a rotating rod, a second pulley and a straight rack, a chute is formed in the detection box, the chute is vertically arranged, and the rotating rod penetrates through the chute; the second pulley is rotatably connected to one end of the rotating rod, which is far away from the sliding groove; the straight rack is connected in the detection box in a sliding manner, the sliding direction is vertical, and the straight rack is fixedly connected with one end of the rotating rod, which is far away from the second pulley; the straight racks are meshed with gears, and the gears are rotationally connected with the detection box; the gear is coaxially and fixedly connected with a first bevel gear, the first bevel gear is meshed with a second bevel gear, and the second bevel gear is coaxially and fixedly connected with a cam; the accurate detection part is arranged on the detection box and is used for detecting the concave-convex degree of the road surface at two sides of the running direction of the frame.
Through adopting above-mentioned technical scheme, road surface extrusion second pulley, the second pulley drives the dwang and reciprocates along the spout, and the dwang drives straight rack and removes, and straight rack drive gear rotates, and the gear drives first bevel gear and rotates, and first bevel gear drive second bevel gear rotates, and second bevel gear drives the cam and rotates, and the cam drives the accurate portion of surveying and promotes the piston board and remove for the unsmooth degree on frame direction of travel both sides road surface can be surveyed to the device, thereby has further improved the scope that the device surveyed, and then has further improved the control accuracy of device.
Optionally, the precise measurement part comprises a second slide bar, a second spring and a fixed plate, wherein the second slide bar is fixedly connected to one end of the piston plate far away from the fixed rod, and one end of the second slide bar far away from the piston plate is slidably arranged in the detection box in a penetrating manner; the second spring is sleeved on the second sliding rod, one end of the second spring is fixedly connected with the piston plate, and the other end of the second spring is fixedly connected with the detection box; the fixed plate is fixedly connected to one end, far away from the piston plate, of the second sliding rod, is positioned on the outer side of the detection box, and the cam is abutted to the fixed plate.
Through adopting above-mentioned technical scheme, the cam is driven to the second bevel gear, and the cam extrudes the fixed plate, and the fixed plate drives the second slide bar and removes, and the second slide bar drives the piston board and removes, under the thrust effect of first slide bar and second slide bar, the piston board transmits the detection signal of synthesizing to control assembly to make control assembly have further improved the control accuracy to the header, and then further improved the detection accuracy of device to the unsmooth degree of road surface.
Optionally, a first adjusting spring is fixedly connected to the top end of the chute, the first adjusting spring is vertically arranged, a curved plate is fixedly connected to the bottom end of the first adjusting spring, two ends of the curved plate are bent towards the direction of approaching each other, the distance between the two ends of the curved plate is gradually reduced along the direction of approaching the first adjusting spring, the curved plate is slidably connected with the chute, and the sliding direction is the vertical direction; the bottom fixedly connected with second adjusting spring of spout, second adjusting spring's elasticity is less than first adjusting spring's elasticity, second adjusting spring's top also fixedly connected with bent plate, two bent plate just set up, the dwang is located two between the bent plate, two bent plate all with dwang butt.
Through adopting above-mentioned technical scheme, when the concave degree on road surface becomes big gradually, the holding power of ground pair dwang reduces, because first adjusting spring's elasticity is greater than second adjusting spring, under second adjusting spring's elasticity effect, bent plate promotes the dwang and moves down, and the dwang drives second pulley and ground butt for the second pulley is difficult for being in unsettled state, thereby has improved the detection precision on frame direction of travel both sides road surface, and then has improved the reliability of device.
In summary, the present application includes at least one of the following beneficial technical effects:
the fixing rod, the detection box and the rough detection part are arranged, so that the detection precision of the road surface is improved, and the height of the cutting table is easy to adjust;
by arranging the driving part and the precise measuring part, the device can more comprehensively detect the concave-convex degree of the road surface, so that the device further improves the control precision of the cutting table, and further improves the detection precision of the device on the concave-convex degree of the road surface;
by arranging the control component and the adjusting component, the control precision and consistency of the device are improved, so that the height of the cutting table is easy to adjust, and the cutting table is not easy to scratch with the ground;
through setting up first adjusting spring, bent plate and second adjusting spring for the second pulley is difficult for being in unsettled state, thereby has improved the detection precision on frame direction of travel both sides road surface, and then has improved the reliability of device.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present application;
FIG. 2 is a cross-sectional view intended to illustrate a first detection assembly;
FIG. 3 is a schematic diagram intended to illustrate the construction of a first detection assembly;
fig. 4 is a schematic diagram for explaining the positional relationship between the rough measurement section and the fine measurement section;
FIG. 5 is a schematic diagram intended to illustrate a second detection assembly;
fig. 6 is a cross-sectional view intended to illustrate a control assembly.
Reference numerals illustrate:
1. a frame; 2. a cutting table; 3. a first detection assembly; 31. a fixed rod; 32. a detection box; 321. a chute; 322. a first adjusting spring; 323. a curved plate; 324. a second adjusting spring; 33. a rough measurement unit; 331. a detection box; 332. a piston plate; 3321. a sleeve; 333. a first slide bar; 334. a first spring; 335. a first pulley; 4. a second detection assembly; 41. a driving section; 411. a rotating lever; 412. a second pulley; 413. a straight rack; 414. a gear; 415. a first bevel gear; 416. a second bevel gear; 417. a cam; 42. a precise measurement unit; 421. a second slide bar; 422. a second spring; 423. a fixing plate; 5. a control assembly; 51. a control box; 511. a flow guiding pipe; 52. a floating plate; 53. a floating ball; 54. a first sensing block; 55. a second sensing block; 6. an adjustment assembly; 61. a controller; 62. and a hydraulic oil cylinder.
Detailed Description
The present application is described in further detail below in conjunction with figures 1-6.
The embodiment of the application discloses an automatic copying device of corn harvester header. Referring to fig. 1 and 2, an automatic profiling device for a corn harvester cutting table comprises a frame 1, a cutting table 2, a first detection assembly 3, a second detection assembly 4, a control assembly 5 and an adjusting assembly 6, wherein the first detection assembly 3 is arranged on the cutting table 2 and is used for detecting the degree of concavity and convexity of a road surface in the running direction of the frame 1; the second detection component 4 is arranged on the first detection component 3 and is used for detecting the concave-convex degree of two sides of the road surface in the running direction of the frame 1; the control assembly 5 is arranged on the first detection assembly 3 and is used for controlling the adjusting assembly 6 to adjust the height of the header 2; the adjusting component 6 is arranged between the frame 1 and the header 2 and is used for adjusting the height of the header 2.
When the novel cutting machine is used, the first detection component 3 detects the concave-convex degree of the road surface on the running direction of the frame 1, the second detection component 4 detects the concave-convex degree of the road surface on two sides of the running direction of the frame 1, and the comprehensive detection signal is transmitted to the control component 5, the control component 5 controls the adjusting component 6 to adjust the height of the cutting table 2, so that the height of the cutting table 2 is conveniently adjusted, and the cutting table 2 is not easy to scratch with the ground.
Referring to fig. 1, a frame 1 is in contact with the ground, and a header 2 is connected to the frame 1 and located at one end in the traveling direction of the frame 1. The first detection assemblies 3 are provided with two groups, and the two groups of first detection assemblies 3 are respectively positioned on two sides of the header 2 and are symmetrically arranged along the axis of the moving direction of the header 2.
Referring to fig. 1 and 2, the first detecting assembly 3 includes a fixing rod 31, a detecting tank 32, and a rough measuring part 33. The fixed rod 31 is arranged in a direction away from the frame 1 along the header 2 in an inclined manner in a vertical downward direction, one end of the fixed rod 31 is fixedly connected with one side, close to the ground, of the header 2, and the other end of the fixed rod is fixedly connected with the detection box 32. The detection box 32 is rectangular and inclined, and the length direction of the detection box 32 is the same as the axial direction of the fixing rod 31.
Referring to fig. 1 and 2, the rough measurement part 33 includes a probe case 331, a piston plate 332, a first slide bar 333, a first spring 334, and a first pulley 335. The detecting box 331 is rectangular box-shaped, and is fixedly connected to the inner wall of the detecting box 32 near one side of the fixing rod 31, and the length direction of the detecting box 331 is the same as the length direction of the detecting box 32.
The piston plate 332 is slidably coupled within the probe case 331, and the sliding direction is the length direction of the probe case 331. A sleeve 3321 is fixedly connected to the center of the piston plate 332, the axial direction of the sleeve 3321 is the same as the length direction of the probe box 331, and the sleeve 3321 is positioned at one end of the piston plate 332 away from the fixed rod 31.
One end of the first slide bar 333 is located within the sleeve 3321 and abuts the piston plate 332. One end of the first slide bar 333 away from the piston plate 332 is slidably disposed within the detection box 331 and slidably disposed within the detection box 32. One end of the first spring 334 is fixedly connected with one side of the piston plate 332, which is close to the fixed rod 31, and the other end is fixedly connected with the detection box 331, and the first spring 334 is always in a compressed state.
The first pulley 335 is rotatably connected to an end of the first slide bar 333 away from the piston plate 332, and is located outside the detection box 32, and the first pulley 335 abuts against the ground.
Referring to fig. 1 and 3, a sliding groove 321 is formed in the detection box 32, the sliding groove 321 is vertically arranged, and the sliding groove 321 is located at one side of the detection box 32 away from the axis in the moving direction of the header 2. The top of spout 321 is fixedly connected with first adjusting spring 322, and first adjusting spring 322 is vertical to be set up.
The bottom end fixedly connected with bent plate 323 of first regulating spring 322, bent plate 323 are rectangular plate-shaped, and bent plate 323's both ends are crooked towards the direction that is close to each other setting, and the distance between bent plate 323 both ends reduces gradually along the direction that is close to first regulating spring 322, bent plate 323 and spout 321 sliding connection, and the slip direction is vertical direction.
The bottom fixedly connected with second adjusting spring 324 of spout 321, second adjusting spring 324 vertical setting, the elasticity of second adjusting spring 324 is less than the elasticity of first adjusting spring 322, the top of second adjusting spring 324 also fixedly connected with bent plate 323, two bent plates 323 just set up.
When the cutting table is used, the road surface presses the first pulley 335, the first pulley 335 drives the first slide bar 333 to move, and the first slide bar 333 drives the piston plate 332 to move, so that the device can judge the change of the degree of the concave-convex of the road surface in the driving direction easily according to the travel change of the piston plate 332, and the height of the cutting table 2 can be adjusted easily.
Referring to fig. 1, 2 and 4, the second detecting assembly 4 is provided with two sets, and the two sets of second detecting assemblies 4 are in one-to-one correspondence with the two sets of first detecting assemblies 3. The second detecting unit 4 includes a driving part 41 and a precise detecting part 42, and the driving part 41 includes a rotating lever 411, a second pulley 412, and a spur rack 413.
Referring to fig. 1 and 3, the rotating rod 411 passes through the slide groove 321 and is located between the two curved plates 323, both of the curved plates 323 are abutted against the rotating rod 411, and the rotating rod 411 is disposed obliquely in a vertically downward direction in a direction in which the detection box 32 is away from the axis in the moving direction of the header 2. The second pulley 412 is rotatably coupled to an end of the rotation lever 411 remote from the slide slot 321.
Referring to fig. 4 and 5, the straight rack 413 is slidably connected in the detection box 32, and the sliding direction is a vertical direction, and the straight rack 413 is fixedly connected with one end of the rotating rod 411 away from the second pulley 412. The straight rack 413 is meshed with a gear 414, and the gear 414 is rotationally connected with the detection box 32; the gear 414 is coaxially and fixedly connected with a first bevel gear 415, the first bevel gear 415 is meshed with a second bevel gear 416, and the second bevel gear 416 is coaxially and fixedly connected with a cam 417.
Referring to fig. 2, 3 and 4, the precise measurement portion 42 includes a second slide bar 421, a second spring 422 and a fixing plate 423, one end of the second slide bar 421 is fixedly connected to one end of the piston plate 332 away from the fixing rod 31, one end of the second slide bar 421 away from the piston plate 332 is slidably inserted into the detection box 331, and an axial direction of the second slide bar 421 is the same as an axial direction of the first slide bar 333.
The second spring 422 is sleeved on the second sliding rod 421, one end of the second spring 422 is fixedly connected with the piston plate 332, and the other end is fixedly connected with the detection box 331. The fixed plate 423 is arc-shaped, the fixed plate 423 is fixedly connected to one end, far away from the piston plate 332, of the second slide rod 421 and is located outside the detection box 331, the distance between the two ends of the fixed plate 423 is gradually reduced along the direction close to the second slide rod 421, and the cam 417 is abutted to the fixed plate 423.
When the device is used, the road surface extrudes the second pulley 412, the second pulley 412 drives the rotating rod 411 to move up and down along the sliding groove 321, the rotating rod 411 drives the straight rack 413 to move, the straight rack 413 drives the gear 414 to rotate, the gear 414 drives the first bevel gear 415 to rotate, the first bevel gear 415 drives the second bevel gear 416 to rotate, the second bevel gear 416 drives the cam 417 to rotate, the cam 417 extrudes the fixing plate 423, the fixing plate 423 drives the second sliding rod 421 to move, the second sliding rod 421 drives the piston plate 332 to move, and therefore the device can detect the concave-convex degree of the road surface at two sides of the running direction of the frame 1, the detection range of the device is further improved, and the control precision of the device is further improved.
Referring to fig. 2 and 6, the control assembly 5 is provided with two sets, the two sets of control assemblies 5 are in one-to-one correspondence with the two sets of first detection assemblies 3, and the control assembly 5 includes a control box 51, a floating plate 52 and a floating ball 53. The control box 51 is rectangular box-shaped and vertically arranged, and the control box 51 is fixedly connected in the detection box 32 and is positioned at one side of the detection box 331.
Referring to fig. 1 and 2, the probe box 331 is sequentially divided into a first chamber and a second chamber along a direction in which the probe box 32 is away from the fixing rod 31, the first chamber of the probe box 331 is communicated with the control box 51 by a flow guide 511, and both flow water through the flow guide 511. The floating plate 52 is slidably connected within the control box 51, and the sliding direction is the vertical direction.
Referring to fig. 6, the floating ball 53 is fixedly coupled under the floating plate 52 and is located at the center of the floating plate 52. The floating plate 52 is fixedly connected with a first sensing block 54, a plurality of second sensing blocks 55 are embedded in the inner wall of the control box 51, the second sensing blocks 55 are uniformly distributed along the vertical direction, and the second sensing blocks 55 are located on one side, close to the first sensing block 54, of the control box 51.
Referring to fig. 1, 2 and 6, the adjusting assembly 6 includes a controller 61 and a hydraulic cylinder 62, the controller 61 is fixedly connected to the bottom end of the header 2, the second sensing blocks 55 in the two groups of control assemblies 5 are all electrically connected with the controller 61, the second sensing blocks 55 output sensing signals, and the controller 61 responds to the sensing signals output by the second sensing blocks 55 and is used for controlling the movable end of the hydraulic cylinder 62 to move; the movable end of the hydraulic cylinder 62 is hinged with the header 2, and the fixed end is hinged with the frame 1.
When the cutting table is used, the first slide bar 333 drives the piston plate 332 to move, the piston plate 332 detects the road surface in the running direction, the second slide bar 421 drives the piston plate 332 to move, the piston plate 332 further detects the road surface at two sides of the running direction of the vehicle frame 1, the piston plate 332 extrudes water in the first cavity of the detection box 331, the water in the first cavity of the detection box 331 enters the control box 51 through the guide pipe 511, the water pushes the floating ball 53 to move, the floating ball 53 drives the floating plate 52 to move, the floating plate 52 drives the first sensing block 54 to move, the first sensing block 54 is abutted against the second sensing block 55, under different liquid levels, the first sensing block 54 is abutted against the second sensing block 55, the second sensing block 55 outputs different sensing signals, the controller 61 responds to the comprehensive sensing signals output by the second sensing block 55, and then the controller 61 controls the movable end of the hydraulic cylinder 62 to move, so that the cutting table 2 is easy to adjust the height, and the cutting table 2 is difficult to scratch with the ground.
The implementation principle of the automatic profiling device of the corn harvester header is as follows: the road surface presses the first pulley 335, the first pulley 335 drives the first slide bar 333 to move, the first slide bar 333 drives the piston plate 332 to move, so that the device is easy to detect the road surface in the driving direction;
the road surface extrudes a second pulley 412, the second pulley 412 drives a rotating rod 411 to move up and down along a sliding groove 321, the rotating rod 411 drives a straight rack 413 to move, under the transmission effect of a gear 414, the straight rack 413 drives a cam 417 to rotate, the cam 417 extrudes a fixed plate 423, the fixed plate 423 drives a second sliding rod 421 to move, and the second sliding rod 421 drives a piston plate 332 to move, so that the device further detects road surfaces on two sides of the running direction of the frame 1;
through the combined action of the first slide bar 333 and the second slide bar 421 to the piston plate 332, the piston plate 332 presses the water pressure in the first cavity of the detection box 331 into the control box 51, under the buoyancy action, the floating plate 52 drives the first sensing block 54 to move, the first sensing block 54 is abutted with the second sensing block 55, different second sensing blocks 55 output different sensing signals under different liquid levels, the controller 61 responds to the combined sensing signals output by the second sensing blocks 55, the controller 61 controls the movable end of the hydraulic cylinder 62 to move, so that the height of the cutting table 2 is easy to adjust, and the cutting table 2 is difficult to scratch with the ground.
The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (8)
1. The utility model provides an automatic copying device of maize picker header which characterized in that: the device comprises a frame (1), a header (2), a first detection assembly (3), a control assembly (5) and an adjusting assembly (6), wherein the header (2) is connected with the frame (1), and the first detection assembly (3) is arranged on the header (2) and is used for detecting the degree of concavity and convexity of a road surface in the running direction of the frame (1); the control assembly (5) is arranged on the first detection assembly (3) and is used for controlling the adjusting assembly (6) to adjust the height of the header (2); the adjusting component (6) is arranged between the frame (1) and the header (2) and is used for adjusting the height of the header (2).
2. The automatic profiling device for corn harvester cutting tables according to claim 1, wherein: the first detection assemblies (3) are provided with two groups, and the two groups of first detection assemblies (3) are respectively positioned at two sides of the header (2); the first detection assembly (3) comprises a fixed rod (31), a detection box (32) and a rough detection part (33), wherein the fixed rod (31) is obliquely arranged, one end of the fixed rod (31) is connected with one side, close to the ground, of the header (2), the other end of the fixed rod is fixedly connected with the detection box (32), and the axis direction of the detection box (32) is the same as that of the fixed rod (31); the rough measurement part (33) is arranged in the detection box (32) and is used for detecting the road surface in the running direction of the frame (1).
3. The automatic profiling device for corn harvester cutting tables according to claim 2, wherein: the rough measurement part (33) comprises a detection box (331), a piston plate (332), a first sliding rod (333), a first spring (334) and a first pulley (335), wherein the detection box (331) is fixedly connected to one side of the detection box (32) close to the fixed rod (31), and the axial direction of the detection box (331) is the same as the axial direction of the detection box (32); the piston plate (332) is slidably connected in the detection box (331), and the sliding direction is the axial direction of the fixed rod (31); the first sliding rod (333) is connected to one end of the piston plate (332) far away from the fixed rod (31), and one end of the first sliding rod (333) far away from the piston plate (332) is slidably arranged in the detection box (331) in a penetrating manner and is slidably arranged in the detection box (32); one end of the first spring (334) is fixedly connected with one side of the piston plate (332) close to the fixed rod (31), the other end of the first spring is fixedly connected with the detection box (331), and the first spring (334) is always in a compressed state; the first pulley (335) is rotatably connected to one end of the first sliding rod (333) away from the piston plate (332), and is located outside the detection box (32).
4. A corn harvester header automatic profiling apparatus as in claim 3 wherein: the control components (5) are provided with two groups, and the two groups of control components (5) are in one-to-one correspondence with the two groups of first detection components (3); the control assembly (5) comprises a control box (51), a floating plate (52) and a floating ball (53), wherein the control box (51) is vertically arranged and fixedly connected in the detection box (32), and the control box (51) is communicated with the detection box (331); the floating plate (52) is connected in the control box (51) in a sliding manner, and the sliding direction is the vertical direction; the floating ball (53) is fixedly connected below the floating plate (52); the floating plate (52) is fixedly connected with a first induction block (54), a plurality of second induction blocks (55) are embedded in the inner wall of the control box (51), the second induction blocks (55) are uniformly distributed along the vertical direction, and the second induction blocks (55) are located on one side, close to the first induction block (54), of the control box (51).
5. The automatic profiling apparatus of a corn harvester header of claim 4, wherein: the adjusting assembly (6) comprises a controller (61) and a hydraulic cylinder (62), the second sensing blocks (55) in the two groups of control assemblies (5) are electrically connected with the controller (61), the second sensing blocks (55) output sensing signals, the controller (61) is fixedly connected to the header (2), and the controller (61) is used for controlling the movable end of the hydraulic cylinder (62) to move in response to the sensing signals output by the second sensing blocks (55); the movable end of the hydraulic oil cylinder (62) is hinged with the header (2), and the fixed end is hinged with the frame (1).
6. A corn harvester header automatic profiling apparatus as in claim 3 wherein: the device further comprises second detection assemblies (4), wherein the second detection assemblies (4) are provided with two groups, and the two groups of second detection assemblies (4) are in one-to-one correspondence with the two groups of first detection assemblies (3); the second detection assembly (4) comprises a driving part (41) and a precise detection part (42), the driving part (41) comprises a rotating rod (411), a second pulley (412) and a straight rack (413), a chute (321) is formed in the detection box (32), the chute (321) is vertically arranged, and the rotating rod (411) penetrates through the chute (321); the second pulley (412) is rotatably connected to one end of the rotating rod (411) far away from the sliding groove (321); the straight rack (413) is slidably connected in the detection box (32), the sliding direction is vertical, and the straight rack (413) is fixedly connected with one end of the rotating rod (411) far away from the second pulley (412); the straight racks (413) are meshed with gears (414), and the gears (414) are rotationally connected with the detection box (32); the gear (414) is coaxially and fixedly connected with a first bevel gear (415), the first bevel gear (415) is meshed with a second bevel gear (416), and the second bevel gear (416) is coaxially and fixedly connected with a cam (417); the precise detection part (42) is arranged on the detection box (32) and is used for detecting the concave-convex degree of the road surface at two sides of the running direction of the frame (1).
7. The automatic profiling apparatus of a corn harvester header of claim 6, wherein: the precise measurement part (42) comprises a second slide bar (421), a second spring (422) and a fixed plate (423), wherein the second slide bar (421) is fixedly connected to one end of the piston plate (332) far away from the fixed rod (31), and one end of the second slide bar (421) far away from the piston plate (332) is slidably arranged in the detection box (331); the second spring (422) is sleeved on the second sliding rod (421), one end of the second spring (422) is fixedly connected with the piston plate (332), and the other end of the second spring is fixedly connected with the detection box (331); the fixed plate (423) is fixedly connected to one end, far away from the piston plate (332), of the second sliding rod (421) and is located on the outer side of the detection box (331), and the cam (417) is abutted to the fixed plate (423).
8. The automatic profiling apparatus of a corn harvester header of claim 6, wherein: the top end of the sliding groove (321) is fixedly connected with a first adjusting spring (322), the first adjusting spring (322) is vertically arranged, the bottom end of the first adjusting spring (322) is fixedly connected with a curved plate (323), two ends of the curved plate (323) are bent towards the direction close to each other, the distance between the two ends of the curved plate (323) is gradually reduced along the direction close to the first adjusting spring (322), the curved plate (323) is in sliding connection with the sliding groove (321), and the sliding direction is the vertical direction; the bottom fixedly connected with second adjusting spring (324) of spout (321), the elasticity of second adjusting spring (324) is less than the elasticity of first adjusting spring (322), the top of second adjusting spring (324) also fixedly connected with bent plate (323), two bent plate (323) are just to setting up, dwang (411) are located two between bent plate (323), two bent plate (323) all with dwang (411) butt.
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