CN110839400B - Header transverse and longitudinal profiling executing device and harvester with same - Google Patents
Header transverse and longitudinal profiling executing device and harvester with same Download PDFInfo
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- CN110839400B CN110839400B CN201911165375.2A CN201911165375A CN110839400B CN 110839400 B CN110839400 B CN 110839400B CN 201911165375 A CN201911165375 A CN 201911165375A CN 110839400 B CN110839400 B CN 110839400B
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D45/00—Harvesting of standing crops
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Abstract
The invention provides a header transverse and longitudinal profiling executing device and a harvester provided with the same, wherein the harvester comprises a left push rod assembly, a right push rod assembly, a chassis, a header, a supporting and positioning assembly and a header chassis connecting assembly; the upper and lower pawls are controlled to open and close by controlling whether the upper and lower electromagnets of the supporting and positioning assembly are electrified or not, so that the mechanism moves up and down along with the cutting table, when the cutting table reaches a designated height, the corresponding pawls are released by disconnecting the power supply of the corresponding electromagnets, the function of locking the ratchet shaft is achieved, the inertia of the movement of the cutting table is eliminated, and the stability of the cutting table is improved; when the header needs to be transversely profiled, the function of locking the ratchet shaft is realized by disconnecting the power supply of the upper electromagnet and the lower electromagnet, so that a fixed fulcrum is provided for the front end of the header, and the transverse profiling of the header is realized by matching with the header chassis connecting assembly at the rear end of the header, so that the possibility is provided for realizing the transverse profiling and the longitudinal profiling of the header and improving the profiling stability of the header.
Description
Technical Field
The invention belongs to the field of agricultural machinery, and particularly relates to a header transverse and longitudinal profiling executing device and a harvester provided with the same.
Background
China is the country with the largest vegetable planting area and consumption in the world, and the vegetable yield accounts for about 60% of the total yield in the world. Wherein the vegetable planting area of the facility accounts for more than 85 percent of the total vegetable planting area of the world, and accounts for 22.6 percent of the total vegetable planting area of the domestic world. At present, domestic facility leaf vegetables mainly depend on manual harvesting, the production efficiency is low, and along with the promotion of aging aggravation and town formation in China, the agricultural labor force is continuously reduced, and the production cost is continuously improved, so that the development of an advanced leaf vegetable harvesting technology has extremely important significance.
At present, the planting specifications of leaf vegetables are not unified, so that most existing leaf vegetable harvesters in the current market are harvesting unordered. Because the soil preparation ridging precision before sowing the leaf vegetables is lower and the ridge surface is uneven when the leaf vegetables are harvested due to the influence of watering and the like after planting, and because the height of the first cotyledon of the leaf vegetables such as Shanghai green, spinach and the like is extremely low, if a cutting table cannot carry out transverse and longitudinal profiling along with the ground in the harvesting process, the leaf vegetables are extremely easy to be scattered, so that harvesting loss is caused, and the harvesting quality is reduced. Chinese patent CN109699287a discloses a leaf vegetable harvester with harvesting height adjusting function and control method thereof, which controls the electric push rod to stretch according to the signal detected by the infrared ranging sensor and controls the lifting platform to stretch according to the signal detected by the ultrasonic sensor, but the executing device of the harvester still only realizes longitudinal profiling and does not have transverse profiling function.
Therefore, further research on a transverse and longitudinal profiling execution device of the leaf vegetable harvester is needed.
Disclosure of Invention
Aiming at the technical problems, the invention provides a transverse and longitudinal profiling executing device of a cutting table and a harvester provided with the device, which are characterized in that whether an upper electromagnet and a lower electromagnet are electrified or not is controlled, and the opening and closing of an upper pawl and a lower pawl are controlled, so that the mechanism moves up and down along with the cutting table, when the cutting table reaches a designated height, the corresponding pawl is released by disconnecting the power supply of the corresponding electromagnet, so that the function of locking a ratchet shaft is achieved, the inertia of the movement of the cutting table is eliminated, and the stability of the cutting table is further improved; when the header needs to be transversely profiled, the function of locking the ratchet shaft is realized by disconnecting the power supply of the upper electromagnet and the lower electromagnet, so that a fixed fulcrum is provided for the front end of the header, and the transverse profiling of the header is realized by matching with the header chassis connecting assembly at the rear end of the header. The invention provides possibility for realizing transverse and longitudinal profiling of the header and improving profiling stability of the header.
The technical scheme adopted for solving the technical problems is as follows: a header transverse and longitudinal profiling execution device comprises a left push rod assembly, a right push rod assembly, a chassis, a header, a supporting and positioning assembly and a header chassis connecting assembly;
The left push rod assembly and the right push rod assembly are symmetrically arranged at the bottom of the cutting table respectively, the upper ends of the left push rod assembly and the right push rod assembly are connected with the bottom of the cutting table respectively, and the lower ends of the left push rod assembly and the right push rod assembly are connected with the lower part of the chassis respectively;
The supporting and positioning assembly comprises a chassis supporting seat, a lower connecting rod assembly, an upper connecting rod assembly, a knuckle bearing and a header supporting seat; the chassis supporting seat is arranged at the front end of the chassis and is hinged with one end of the lower connecting rod assembly; the other end of the lower connecting rod assembly is connected with one end of the upper connecting rod assembly in a matched manner through a ratchet mechanism; the other end of the upper connecting rod assembly is connected with a knuckle bearing; the joint bearing is hinged with the header supporting seat, and the header supporting seat is arranged at the bottom of the front end of the header;
The header chassis connecting assembly comprises a side supporting device, a supporting transverse shaft device, a center supporting device and a connecting shaft; two ends of the supporting cross shaft device are respectively connected with the side supporting devices in a rotating way, and the bottoms of the side supporting devices are connected to the top of the rear end of the chassis; the center supporting device is rotatably arranged in the middle of the transverse shaft supporting device through a connecting shaft, and is connected to the bottom of the rear end of the header.
In the scheme, the lower connecting rod assembly comprises a lower connecting rod mounting frame, an outer bearing end cover, an outer bearing, a bearing mounting hole, a circular ring and an inner bearing end cover;
One end of the lower connecting rod mounting frame is hinged with the chassis supporting seat, symmetrical bearing mounting holes are respectively formed in two outer sides of the other end of the lower connecting rod mounting frame, an outer bearing is arranged in each bearing mounting hole, and an outer bearing end cover and an inner bearing end cover are respectively arranged on two outer sides of each bearing mounting hole; the inner side of the other end of the lower connecting rod mounting frame is provided with a circular ring.
Further, the ratchet mechanism comprises an upper electromagnet, an upper spring, an upper pawl, a lower spring, a lower electromagnet and a ratchet shaft;
One end of the upper pawl and one end of the lower pawl are hinged to the inner side of the circular ring;
the upper electromagnet is arranged in the magnet mounting hole at the upper part of the circular ring, and the lower electromagnet is arranged in the magnet mounting hole at the lower part of the circular ring;
One end of the upper spring is connected with the upper electromagnet, and the other end of the upper spring is connected with the upper part of the other end of the upper pawl; one end of the lower spring is connected with the lower electromagnet, and the other end of the lower spring is connected with the lower part of the other end of the lower pawl; the lower part of the upper pawl is pressed on the ratchet wheel of the ratchet wheel shaft through an upper spring, and the upper part of the lower pawl is pressed on the ratchet wheel of the ratchet wheel shaft through a lower spring; the two ends of the ratchet shaft are connected with one end of the upper connecting rod rack, and the other end of the upper connecting rod rack is connected with the knuckle bearing.
Further, after the upper electromagnet and the lower electromagnet are electrified, the upper pawl and the lower pawl are separated from the ratchet shaft;
When the lower electromagnet is electrified and the upper electromagnet is not electrified, the lower pawl is separated from the ratchet shaft, the upper pawl is meshed with the ratchet shaft, and at the moment, the upper connecting rod assembly can rotate clockwise relative to the lower connecting rod assembly around the axis of the ratchet shaft and cannot rotate anticlockwise;
When the upper electromagnet is electrified and the lower electromagnet is not electrified, the upper pawl is separated from the ratchet shaft, the lower pawl is meshed with the ratchet shaft, and at the moment, the upper connecting rod assembly can rotate anticlockwise relative to the lower connecting rod assembly around the axis of the ratchet shaft and cannot rotate clockwise;
when the upper electromagnet and the lower electromagnet are not electrified, the upper pawl and the lower pawl are meshed with the ratchet shaft, and the upper connecting rod assembly is fixed relative to the lower connecting rod assembly.
In the scheme, the vertical distance between the axis of the connecting shaft and the bottom of the header is equal to the vertical distance between the axis of the connecting pin of the chassis supporting seat and the bottom of the header.
In the scheme, the left push rod assembly comprises a header connecting seat, a connecting pin A, a joint bearing A, a push rod, a joint bearing B, a connecting pin B and a chassis connecting seat;
The cutting table connecting seat is hinged to the joint bearing A through a connecting pin A, the joint bearing A is arranged at one end of the push rod, the joint bearing B is arranged at the other end of the push rod, and the chassis connecting seat is hinged to the joint bearing B through a connecting pin B;
The right push rod assembly and the left push rod assembly are identical in structure.
In the above scheme, the side supporting device comprises a side supporting device bearing end cover, a side supporting device bearing and a side supporting device mounting frame;
The side supporting device comprises a side supporting device mounting frame, wherein two symmetrically-mounted side supporting device bearings are arranged in a mounting hole of the side supporting device mounting frame, and side supporting device bearing end covers are respectively arranged on two sides of the mounting hole of the side supporting device mounting frame.
In the above scheme, the supporting cross shaft device comprises a supporting cross shaft device mounting bracket, a supporting cross shaft device end cover and a supporting cross shaft device bearing, wherein the supporting cross shaft device bearings are respectively arranged in two side mounting holes in the middle of the supporting cross shaft device mounting bracket, and the supporting cross shaft device end covers are respectively arranged outside the mounting holes of the supporting cross shaft device mounting bracket.
In the above scheme, the center strutting arrangement includes side strutting arrangement support, center strutting arrangement bearing and center strutting arrangement end cover, two center strutting arrangement bearings symmetry install in the side strutting arrangement support mounting hole, the outside center strutting arrangement end cover that is equipped with respectively of side strutting arrangement support mounting hole.
A harvester comprises the header transverse and longitudinal profiling executing device.
Compared with the prior art, the invention has the beneficial effects that: the transverse and longitudinal profile modeling execution device of the header controls the opening and closing of the upper pawl and the lower pawl by controlling the electrifying state of the upper electromagnet and the lower electromagnet of the supporting and positioning assembly, so that the mechanism moves up and down along with the header, when the header reaches a designated height, the corresponding pawl is released by disconnecting the power supply of the corresponding electromagnet, the function of locking the ratchet shaft is achieved, the inertia of the movement of the header is eliminated, the stability of the header is improved, and the longitudinal profile modeling of the header is realized. According to the transverse and longitudinal profiling executing device of the header, the function of locking the ratchet shaft is achieved by disconnecting the power supply of the upper electromagnet and the lower electromagnet, so that a fixed fulcrum is provided for the front end of the header, and the transverse profiling of the header is achieved by matching with the fulcrum of the header chassis connecting assembly at the rear end of the header.
Drawings
The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
fig. 1 is a schematic view of the overall installation structure of an embodiment of the present invention.
FIG. 2 is an isometric view of a support positioning assembly according to an embodiment of the present invention.
FIG. 3 is a transverse cross-sectional view of a lower link assembly in a support and positioning assembly in accordance with one embodiment of the present invention.
Fig. 4 is a schematic view of a lower link mounting frame according to an embodiment of the present invention.
Fig. 5 is a longitudinal cross-sectional view of a support positioning assembly according to an embodiment of the present invention.
FIG. 6 is a schematic view of the structure of the upper link in the support and positioning assembly according to an embodiment of the present invention.
FIG. 7 is a schematic view showing three working states of a ratchet mechanism in a supporting and positioning assembly according to an embodiment of the present invention.
Fig. 8 is a schematic diagram of a left push rod assembly of a header transverse and longitudinal profiling executing apparatus according to an embodiment of the present invention.
Fig. 9 is a side view of a header chassis connection assembly according to an embodiment of the invention.
Fig. 10 is a transverse cross-sectional view of a header chassis connection assembly in accordance with an embodiment of the invention.
Fig. 11 is a longitudinal cross-sectional view of a header chassis connection assembly according to an embodiment of the invention.
Fig. 12 is a schematic view of a side support device according to an embodiment of the present invention.
Fig. 13 is a schematic view of a supporting cross-shaft apparatus according to an embodiment of the present invention.
Fig. 14 is a schematic view of a center support device according to an embodiment of the present invention.
FIG. 15 is a schematic view of a side support mounting bracket according to an embodiment of the present invention.
Fig. 16 is a schematic view of a mounting bracket for a support cross-shaft device in accordance with an embodiment of the present invention.
Fig. 17 is a schematic view of a center support bracket according to an embodiment of the present invention.
In the figure: 1. a support positioning assembly; 1-1, a chassis supporting seat; 1-2, a disc support base connecting pin; 1-3, lower connecting rod assembly; 1-3-1, a lower connecting rod mounting rack; 1-3-1-1, outer end bearing mounting holes; 1-3-1-2, a circular ring; 1-3-1-3, magnet mounting holes; 1-3-2, an outer bearing end cover; 1-3-3, an outer bearing; 1-3-4, inner bearing end caps; 1-3-5, upper electromagnet; 1-3-6, and mounting a spring; 1-3-7, and a pawl is arranged on the upper part; 1-3-8, lower pawl; 1-3-9, lower spring; 1-3-10, lower electromagnet; 1-3-11, connecting pins; 1-4, an upper connecting rod assembly; 1-4-1, an upper connecting rod rack; 1-4-2, ratchet shaft; 1-5, a knuckle bearing; 1-6, a header supporting seat connecting pin; 1-7, a header supporting seat; 2. a left push rod assembly; 2-1, a header connecting seat; 2-2, connecting pin A;2-3, a knuckle bearing A;2-4, push rod; 2-5, a knuckle bearing B;2-6, connecting pin B;2-7, a chassis connecting seat; 3. a right push rod assembly; 4. a chassis; 5. the header chassis connecting assembly; 5-1, side support means; 5-1-1, a bearing end cover of the side supporting device; 5-1-2, side support device bearings; 5-1-3, side support device mounting frames; 5-1-3-1, a side support device mounting rack bearing mounting hole; 5-2, supporting a transverse shaft device; 5-2-1, supporting a transverse shaft device mounting bracket; 5-2-1-1, and a bearing mounting hole of a mounting bracket of a supporting cross shaft device; 5-2-2, supporting the end cover of the transverse shaft device; 5-2-3, supporting a transverse shaft device bearing; 5-3, a central supporting device; 5-3-1, a central supporting device bracket; 5-3-1-1, a central supporting device bracket bearing mounting hole; 5-3-2, a central supporting device bearing; 5-3-3, a central support device end cover; 5-4, connecting shaft; 6. and (5) cutting the header.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
In the description of the present invention, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "axial," "radial," "vertical," "horizontal," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
Example 1
FIG. 1 shows a preferred embodiment of the header horizontal and vertical profiling executing apparatus of the present invention, the header horizontal and vertical profiling executing apparatus includes a left push rod assembly 2, a right push rod assembly 3, a chassis 4, a header 6, a supporting and positioning assembly 1 and a header chassis connecting assembly 5; the left push rod assembly 2 and the right push rod assembly 3 are symmetrically arranged at the bottom of the cutting table 6 respectively, the upper ends of the left push rod assembly 2 and the right push rod assembly 3 are connected with the bottom of the cutting table 6 respectively, and the lower ends of the left push rod assembly 2 and the right push rod assembly 3 are connected with the lower part of the chassis 4 respectively. The upper end of the supporting and positioning assembly 1 is arranged on the longitudinal central line of the advancing direction of the bottom of the front end of the header 6, and the lower end of the supporting and positioning assembly is arranged on the longitudinal central line of the chassis 4. The upper end of the header chassis connecting assembly 5 is arranged on the longitudinal central line of the bottom of the rear end of the header 6, the lower end of the header chassis connecting assembly 5 is arranged at the top of the rear end of the chassis 4, and the two ends of the header chassis connecting assembly 5 and the longitudinal central line of the header 6 are symmetrically arranged transversely.
As shown in fig. 2, the supporting and positioning assembly 1 comprises a chassis supporting seat 1-1, a chassis supporting seat connecting pin 1-2, a lower connecting rod assembly 1-3, an upper connecting rod assembly 1-4, a knuckle bearing 1-5, a cutting table supporting seat connecting pin 1-6 and a cutting table supporting seat 1-7; the chassis support seat 1-1 is arranged on a longitudinal central line of the advancing direction of the front end of the chassis 4, and the chassis support seat 1-1 is hinged with one end of the lower connecting rod assembly 1-3 through a chassis support seat connecting pin 1-2; the other end of the lower connecting rod assembly 1-3 is connected with one end of the upper connecting rod assembly 1-4 in a matched manner through a ratchet mechanism; the other end of the upper connecting rod assembly 1-4 is connected with the knuckle bearing 1-5; the joint bearing 1-5 is hinged with the header supporting seat 1-7 through the header supporting seat connecting pin 1-6, and the header supporting seat 1-7 is arranged on the longitudinal central line of the advancing direction of the bottom of the front end of the header 6.
As shown in fig. 3,4 and 5, the lower link assembly 1-3 includes a lower link mounting bracket 1-3-1, an outer bearing end cap 1-3-2, an outer bearing 1-3-3, a bearing mounting hole 1-3-1-1, a ring 1-3-1-2 and an inner bearing end cap 1-3-4; one end of the lower connecting rod mounting frame 1-3-1 is hinged with the chassis supporting seat 1-1, symmetrical bearing mounting holes 1-3-1-1 are respectively formed in two outer sides of the other end of the lower connecting rod mounting frame, an outer bearing 1-3-3 is arranged in the bearing mounting holes 1-3-1-1, and an outer bearing end cover 1-3-2 and an inner bearing end cover 1-3-4 are respectively arranged on two outer sides of the bearing mounting holes 1-3-1-1; the inner side of the other end of the lower connecting rod mounting frame 1-3-1 is provided with a circular ring 1-3-1-2.
The ratchet mechanism comprises an upper electromagnet 1-3-5, an upper spring 1-3-6, an upper pawl 1-3-7, a lower pawl 1-3-8, a lower spring 1-3-9, a lower electromagnet 1-3-10 and a ratchet shaft 1-4-2; one end of the upper pawl 1-3-7 and one end of the lower pawl 1-3-8 are hinged on the inner side of the circular ring 1-3-1-2 through a connecting pin 1-3-11; the upper electromagnet 1-3-5 is arranged in the magnet mounting hole 1-3-1-3 at the upper part of the circular ring 1-3-1-2, and the lower electromagnet 1-3-10 is arranged in the magnet mounting hole 1-3-1-3 at the lower part of the circular ring 1-3-1-2; the upper spring 1-3-6 is arranged between the upper electromagnet 1-3-5 and the upper pawl 1-3-7, one end of the upper spring 1-3-6 is connected with the upper electromagnet 1-3-5, and the other end is connected with the upper part of the other end of the upper pawl 1-3-7; the lower spring 1-3-9 is arranged between the lower electromagnet 1-3-10 and the lower pawl 1-3-8, one end of the lower spring 1-3-9 is connected with the lower electromagnet 1-3-10, and the other end is connected with the lower part of the other end of the lower pawl 1-3-8; the lower part of the upper pawl 1-3-7 is pressed on the ratchet wheel of the ratchet wheel shaft 1-4-2 through an upper spring 1-3-6, and the upper part of the lower pawl 1-3-8 is pressed on the ratchet wheel of the ratchet wheel shaft 1-4-2 through a lower spring 1-3-9; two ends of the ratchet shaft 1-4-2 are connected with one end of the upper connecting rod frame 1-4-1, and the other end of the upper connecting rod frame 1-4-1 is connected with the knuckle bearing 1-5.
As shown in fig. 2 and 5, the lower link assembly 1-3 can perform a rotary motion around the mounting hole of the chassis support base 1-1 through the chassis support base connecting pin 1-2; the upper connecting rod assembly 1-4 can do rotary motion around the mounting hole of the header supporting seat 1-7 through the header supporting seat connecting pin 1-6. The upper electromagnet 1-3-5 and the lower electromagnet 1-3-10 are respectively positioned right behind the heads of the upper pawl 1-3-7 and the lower pawl 1-3-8 far away from the rotation center end. The upper spring 1-3-6 and the lower spring 1-3-9 respectively press the upper pawl 1-3-7 and the lower pawl 1-3-8 on the ratchet wheel of the ratchet wheel shaft 1-4-2. The upper pawl 1-3-7 and the lower pawl 1-3-8 are hinged with the connecting pin 1-3-11 and can rotate around the connecting pin 1-3-11. After the upper electromagnet 1-3-5 and the lower electromagnet 1-3-10 are electrified, the elastic force of the upper spring 1-3-6 and the lower spring 1-3-9 can be overcome, and then the upper pawl 1-3-7 and the lower pawl 1-3-8 are opened from the meshing state of the ratchet shaft 1-4-2.
As shown in fig. 6, the ratchet shafts (1-4-2) are symmetrically arranged in the mounting holes of the upper connecting rod frame 1-4-1.
As shown in fig. 7, when the header needs to be lifted, the lower electromagnet 1-3-10 is powered on and the upper electromagnet 1-3-5 is not powered on, the lower pawl 1-3-8 overcomes the elastic force of the lower spring 1-3-9 and is not meshed with the ratchet shaft 1-4-2 any more, and the upper pawl 1-3-7 is still pressed on the ratchet shaft 1-4-2 by the upper spring 1-3-6 to be in a meshed state, and at this time, the upper link assembly 1-4 can rotate clockwise relative to the lower link assembly 1-3 around the axis of the ratchet shaft 1-4-2 and cannot rotate anticlockwise; when the cutting table needs to descend, the upper electromagnet 1-3-5 is electrified, and the lower electromagnet 1-3-10 is not electrified, the upper pawl 1-3-7 is in an open state without being meshed with the ratchet shaft 1-4-2 any more under the action of the elastic force of the upper spring 1-3-6, the lower pawl 1-3-8 is still pressed on the ratchet shaft 1-4-2 by the lower spring 1-3-9 to be in a meshed state, and at the moment, the upper connecting rod assembly 1-4 can rotate anticlockwise relative to the lower connecting rod assembly 1-3 around the axis of the ratchet shaft 1-4-2 and cannot rotate clockwise; when the cutting table reaches a specified position, after the upper electromagnet 1-3-5 and the lower electromagnet 1-3-10 are not electrified, the upper pawl 1-3-7 is pressed on the ratchet shaft 1-4-2 by the upper spring 1-3-6 to be in a meshed state, and the lower pawl 1-3-8 is pressed on the ratchet shaft 1-4-2 by the lower spring 1-3-9 to be in a meshed state, so that the upper connecting rod assembly 1-4 is fixed in position relative to the lower connecting rod assembly 1-3.
As shown in FIG. 8, the left push rod assembly 2 comprises a header connecting seat 2-1, a connecting pin A2-2, a joint bearing A2-3, a push rod 2-4, a joint bearing B2-5, a connecting pin B2-6 and a chassis connecting seat 2-7. The cutting table connecting seat 2-1 is hinged to the joint bearing A2-3 through the connecting pin A2-2, the joint bearing A2-3 is installed at the top end of the push rod 2-4, the joint bearing B2-5 is installed at the bottom end of the push rod 2-4, the chassis connecting seat 2-7 is hinged to the joint bearing B2-6 through the connecting pin B2-6, and the right push rod assembly 3 and the left push rod assembly 2 are identical in structure.
As shown in fig. 9, the header chassis connecting assembly 5 includes a side supporting device 5-1, a supporting cross shaft device 5-2, a center supporting device 5-3 and a connecting shaft 5-4. The two sets of side supporting devices 5-1 are transversely and symmetrically arranged at two ends of the supporting transverse shaft device 5-2, and the side supporting devices 5-1 are rotatably connected with the supporting transverse shaft device 5-2; the center supporting device 5-3 is longitudinally and symmetrically arranged in the middle of the supporting transverse shaft device 5-2 through the connecting shaft 5-4, and the center supporting device 5-3 is rotationally connected with the supporting transverse shaft device 5-2. The two ends of the supporting transverse shaft device 5-2 and the longitudinal center line of the header 6 are arranged transversely and symmetrically.
As shown in fig. 10, 11, 12, 13, 14, 15, 16, 17, the side support 5-1 includes a side support bearing end cap 5-1-1, a side support bearing 5-1-2, and a side support mounting bracket 5-1-3. The two side supporting device bearings 5-1-2 are arranged in side supporting device mounting frame bearing mounting holes 5-1-3-1 on two sides of the side supporting device mounting frame 5-1-3, and the two side supporting device bearing end covers 5-1-1 are symmetrically arranged on two sides outside the side supporting device mounting frame 5-1-3. The supporting cross shaft device 5-2 comprises a supporting cross shaft device mounting bracket 5-2-1, a supporting cross shaft device end cover 5-2-2 and a supporting cross shaft device bearing 5-2-3. The two supporting cross shaft device bearings 5-2-3 are arranged in supporting cross shaft device mounting bracket bearing mounting holes 5-2-1-1 on two sides of the supporting cross shaft device mounting bracket 5-2-1, and the two supporting cross shaft device end covers 5-2-2 are symmetrically arranged on two sides outside the supporting cross shaft device mounting bracket 5-2-1; the center support 5-3 comprises a center support bracket 5-3-1, a center support bearing 5-3-2 and a center support end cover 5-3-3. The two center support device bearings 5-3-2 are arranged in center support device support bearing mounting holes 5-3-1-1 of the center support device support 5-3-1, and the two center support device end covers 5-3-3 are symmetrically arranged on two sides outside the center support device support 5-3-1;
The supporting cross shaft device 5-2 can rotate around the two side supporting devices 5-1, and the central supporting device 5-3 can rotate around the supporting cross shaft device 5-2 through the connecting shaft 5-4. The vertical distance from the axis of the connecting shaft 5-4 to the bottom of the header 6 is the same as the vertical distance from the axis of the header support base connecting pin 1-6 to the bottom of the header 6.
Example 2
The harvester in this embodiment includes the header transverse and longitudinal profiling device in the embodiment, so the harvester has the beneficial effects of embodiment 1, and will not be described herein.
The chassis 4 is fixedly connected with the chassis supporting seat 1-1; the header supporting seat 1-7 is fixedly connected with the header 6; the chassis supporting seat 1-1 and the header supporting seat 1-7 are respectively fixed on the central lines of the chassis 4 and the header 6 in the running direction.
In a preferred embodiment of the present invention, the support positioning assembly 1 is fixed on the chassis 4 through the chassis support base 1-1 and fixed on the bottom of the header 6 through the header support base 1-7. The header chassis connecting assembly 5 is arranged on the chassis 4 through side supporting devices 5-1 on two sides and is arranged at the bottom of the header 6 through a center supporting device 5-3. The left push rod assembly 2 is connected to the bottom of the header 6 through the header connecting seat 2-1, is connected to the chassis 4 through the chassis connecting seat 2-7, and the right push rod assembly 3 has the same structure as the left push rod assembly 2.
Preferably, the chassis support base 1-1 and the header support base 1-7 are respectively fixed on the central lines of the running directions of the chassis 4 and the header 6.
Preferably, the tip of the shape formed at the connection of the lower link assembly 1-3 and the upper link assembly 1-4 faces the harvesting travelling direction.
Preferably, the header chassis connecting assembly 5 is symmetrically arranged on the longitudinal central line of the header 6 and the chassis 4. Preferably, the right push rod assembly 3 and the left push rod assembly 2 are symmetrically arranged on the header 6 and the chassis 4
On the longitudinal centerline.
When the cutting table needs to move upwards, the lower electromagnet 1-3-10 is electrified, the upper electromagnet 1-3-5 is not electrified, the lower pawl 1-3-8 is in an open state without being meshed with the ratchet shaft 1-4-2 any more under the action of the elastic force of the lower spring 1-3-9, the upper pawl 1-3-7 is still pressed on the ratchet shaft 1-4-2 by the upper spring 1-3-6 to be in a meshed state, and at the moment, the upper connecting rod assembly 1-4 can rotate clockwise relative to the lower connecting rod assembly 1-3 around the axis of the ratchet shaft 1-4-2 and cannot rotate anticlockwise. When the cutting table needs to descend, the upper electromagnet 1-3-5 is electrified, and the lower electromagnet 1-3-10 is not electrified, the upper pawl 1-3-7 is in an open state without being meshed with the ratchet shaft 1-4-2 any more under the action of the elastic force of the upper spring 1-3-6, the lower pawl 1-3-8 is still pressed on the ratchet shaft 1-4-2 by the lower spring 1-3-9 to be in a meshed state, and at the moment, the upper connecting rod assembly 1-4 can rotate anticlockwise relative to the lower connecting rod assembly 1-3 around the axis of the ratchet shaft 1-4-2 and cannot rotate clockwise; when the set height is reached, the upper electromagnet 1-3-5 and the lower electromagnet 1-3-10 are not electrified, the upper pawl 1-3-7 is pressed on the ratchet shaft 1-4-2 by the upper spring 1-3-6 to be in a meshed state, the lower pawl 1-3-8 is pressed on the ratchet shaft 1-4-2 by the lower spring 1-3-9 to be in a meshed state, and at the moment, the upper connecting rod assembly 1-4 is fixed relative to the lower connecting rod assembly 1-3 in position, so that inertia generated by movement of a cutting table is eliminated. Thereby realizing the longitudinal profiling of the header 6. When the header needs to be transversely profiled, after the upper electromagnet 1-3-5 and the lower electromagnet 1-3-10 are not electrified, the upper pawl 1-3-7 is pressed on the ratchet shaft 1-4-2 by the upper spring 1-3-6 to be in a meshed state, the lower pawl 1-3-8 is pressed on the ratchet shaft 1-4-2 by the lower spring 1-3-9 to be in a meshed state, and at the moment, the upper connecting rod assembly 1-4 is fixed relative to the lower connecting rod assembly 1-3 in position and is matched with the header chassis connecting assembly 5 to realize the transverse profiling of the header 6.
The header transverse and longitudinal profiling executing device can be connected with a controller and a detection device of the harvester to realize self-adaptive adjustment of header transverse and longitudinal profiling.
It should be understood that although the present disclosure has been described in terms of various embodiments, not every embodiment is provided with a separate technical solution, and this description is for clarity only, and those skilled in the art should consider the disclosure as a whole, and the technical solutions in the various embodiments may be combined appropriately to form other embodiments that will be understood by those skilled in the art.
The above list of detailed descriptions is only specific to 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 spirit of the present invention should be included in the scope of the present invention.
Claims (7)
1. The transverse and longitudinal profiling execution device of the header is characterized by comprising a left push rod assembly (2), a right push rod assembly (3), a chassis (4), a header (6), a supporting and positioning assembly (1) and a header chassis connecting assembly (5);
the left push rod assembly (2) and the right push rod assembly (3) are symmetrically arranged at the bottom of the cutting table (6) respectively, the upper ends of the left push rod assembly (2) and the right push rod assembly (3) are connected with the bottom of the cutting table (6) respectively, and the lower ends of the left push rod assembly (2) and the right push rod assembly (3) are connected with the lower part of the chassis (4) respectively;
The supporting and positioning assembly (1) comprises a chassis supporting seat (1-1), a lower connecting rod assembly (1-3), an upper connecting rod assembly (1-4), a knuckle bearing (1-5) and a header supporting seat (1-7); the chassis supporting seat (1-1) is arranged at the front end of the chassis (4), and the chassis supporting seat (1-1) is hinged with one end of the lower connecting rod assembly (1-3); the other end of the lower connecting rod assembly (1-3) is connected with one end of the upper connecting rod assembly (1-4) in a matched manner through a ratchet mechanism; the other end of the upper connecting rod assembly (1-4) is connected with a joint bearing (1-5); the joint bearing (1-5) is hinged with the header supporting seat (1-7), and the header supporting seat (1-7) is arranged at the bottom of the front end of the header (6); the lower connecting rod assembly (1-3) comprises a lower connecting rod mounting frame (1-3-1), an outer bearing end cover (1-3-2), an outer bearing (1-3-3), a bearing mounting hole (1-3-1-1), a circular ring (1-3-1-2) and an inner bearing end cover (1-3-4); one end of the lower connecting rod mounting frame (1-3-1) is hinged with the chassis supporting seat (1-1), symmetrical bearing mounting holes (1-3-1-1) are respectively formed in two outer sides of the other end of the lower connecting rod mounting frame, an outer bearing (1-3-3) is arranged in each bearing mounting hole (1-3-1-1), and an outer bearing end cover (1-3-2) and an inner bearing end cover (1-3-4) are respectively arranged on two outer sides of each bearing mounting hole (1-3-1-1); the inner side of the other end of the lower connecting rod mounting frame (1-3-1) is provided with a circular ring (1-3-1-2); the ratchet mechanism comprises an upper electromagnet (1-3-5), an upper spring (1-3-6), an upper pawl (1-3-7), a lower pawl (1-3-8), a lower spring (1-3-9), a lower electromagnet (1-3-10) and a ratchet shaft (1-4-2); one end of the upper pawl (1-3-7) and one end of the lower pawl (1-3-8) are hinged on the inner side of the circular ring (1-3-1-2); the upper electromagnet (1-3-5) is arranged in a magnet mounting hole (1-3-1-3) at the upper part of the circular ring (1-3-1-2), and the lower electromagnet (1-3-10) is arranged in a magnet mounting hole (1-3-1-3) at the lower part of the circular ring (1-3-1-2); one end of the upper spring (1-3-6) is connected with the upper electromagnet (1-3-5), and the other end of the upper spring is connected with the upper part of the other end of the upper pawl (1-3-7); one end of the lower spring (1-3-9) is connected with the lower electromagnet (1-3-10), and the other end of the lower spring is connected with the lower part of the other end of the lower pawl (1-3-8); the lower part of the upper pawl (1-3-7) is pressed on the ratchet wheel of the ratchet wheel shaft (1-4-2) through an upper spring (1-3-6), and the upper part of the lower pawl (1-3-8) is pressed on the ratchet wheel of the ratchet wheel shaft (1-4-2) through a lower spring (1-3-9); two ends of the ratchet shaft (1-4-2) are connected with one end of the upper connecting rod rack (1-4-1), and the other end of the upper connecting rod rack (1-4-1) is connected with the knuckle bearing (1-5);
The header chassis connecting assembly (5) comprises a side supporting device (5-1), a supporting transverse shaft device (5-2), a center supporting device (5-3) and a connecting shaft (5-4); two ends of the supporting cross shaft device (5-2) are respectively connected with the side supporting device (5-1) in a rotating way, and the bottom of the side supporting device (5-1) is connected to the top of the rear end of the chassis (4); the center supporting device (5-3) is rotatably arranged in the middle of the supporting transverse shaft device (5-2) through the connecting shaft (5-4), and the center supporting device (5-3) is connected to the bottom of the rear end of the header (6); the vertical distance between the axis of the connecting shaft (5-4) and the bottom of the cutting table (6) is equal to the vertical distance between the axis of the connecting pin (1-2) of the chassis supporting seat and the bottom of the cutting table (6).
2. The header transverse and longitudinal profiling apparatus as claimed in claim 1, wherein the upper pawl (1-3-7) and the lower pawl (1-3-8) are separated from the ratchet shaft (1-4-2) after the upper electromagnet (1-3-5) and the lower electromagnet (1-3-10) are energized;
When the lower electromagnet (1-3-10) is electrified and the upper electromagnet (1-3-5) is not electrified, the lower pawl (1-3-8) is separated from the ratchet shaft (1-4-2), the upper pawl (1-3-7) is meshed with the ratchet shaft (1-4-2), and at the moment, the upper connecting rod assembly (1-4) can rotate clockwise relative to the lower connecting rod assembly (1-3) around the axis of the ratchet shaft (1-4-2) and cannot rotate anticlockwise;
When the upper electromagnet (1-3-5) is electrified and the lower electromagnet (1-3-10) is not electrified, the upper pawl (1-3-7) is separated from the ratchet shaft (1-4-2), the lower pawl (1-3-8) is meshed with the ratchet shaft (1-4-2), and at the moment, the upper connecting rod assembly (1-4) can rotate anticlockwise relative to the lower connecting rod assembly (1-3) around the axis of the ratchet shaft (1-4-2) and cannot rotate clockwise;
when the upper electromagnet (1-3-5) and the lower electromagnet (1-3-10) are not electrified, the upper pawl (1-3-7) and the lower pawl (1-3-8) are meshed with the ratchet shaft (1-4-2), and at the moment, the position of the upper connecting rod assembly (1-4) relative to the position of the lower connecting rod assembly (1-3) is fixed.
3. The header transverse and longitudinal profiling executing device according to claim 1, wherein the left push rod assembly (2) comprises a header connecting seat (2-1), a connecting pin A (2-2), a joint bearing A (2-3), a push rod (2-4), a joint bearing B (2-5), a connecting pin B (2-6) and a chassis connecting seat (2-7);
The cutting table connecting seat (2-1) is hinged to the joint bearing A (2-3) through the connecting pin A (2-2), the joint bearing A (2-3) is arranged at one end of the push rod (2-4), the joint bearing B (2-5) is arranged at the other end of the push rod (2-4), and the chassis connecting seat (2-7) is hinged to the joint bearing B (2-5) through the connecting pin B (2-6);
The right push rod assembly (3) and the left push rod assembly (2) have the same structure.
4. The header profiling apparatus of claim 1, wherein the side support device (5-1) comprises a side support device bearing end cap (5-1-1), a side support device bearing (5-1-2), and a side support device mounting bracket (5-1-3);
Two symmetrically installed side supporting device bearings (5-1-2) are arranged in the installing holes of the side supporting device installing frame (5-1-3), and side supporting device bearing end covers (5-1-1) are respectively arranged on two sides of the installing holes of the side supporting device installing frame (5-1-3).
5. The header transverse and longitudinal profiling executing device according to claim 1, wherein the supporting transverse shaft device (5-2) comprises a supporting transverse shaft device mounting bracket (5-2-1), a supporting transverse shaft device end cover (5-2-2) and a supporting transverse shaft device bearing (5-2-3), the supporting transverse shaft device bearing (5-2-3) is respectively arranged in two side mounting holes in the middle of the supporting transverse shaft device mounting bracket (5-2-1), and the supporting transverse shaft device end cover (5-2-2) is respectively arranged outside the mounting holes of the supporting transverse shaft device mounting bracket (5-2-1).
6. The header transverse and longitudinal profiling executing device according to claim 1, wherein the center supporting device (5-3) comprises a side supporting device bracket (5-3-1), a center supporting device bearing (5-3-2) and a center supporting device end cover (5-3-3), the two center supporting device bearings (5-3-2) are symmetrically installed in the mounting holes of the side supporting device bracket (5-3-1), and the center supporting device end covers (5-3-3) are respectively arranged outside the mounting holes of the side supporting device bracket (5-3-1).
7. A harvester comprising the header transverse and longitudinal profiling executing device of any one of claims 1-6.
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| CN201911165375.2A CN110839400B (en) | 2019-11-25 | 2019-11-25 | Header transverse and longitudinal profiling executing device and harvester with same |
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| CN201911165375.2A CN110839400B (en) | 2019-11-25 | 2019-11-25 | Header transverse and longitudinal profiling executing device and harvester with same |
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| CN110839400A CN110839400A (en) | 2020-02-28 |
| CN110839400B true CN110839400B (en) | 2024-06-07 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11559000B2 (en) * | 2020-05-29 | 2023-01-24 | Deere & Company | Lockout system for header |
| CN112205176B (en) * | 2020-10-27 | 2021-07-23 | 黑龙江省农业机械工程科学研究院 | A device for adjusting the working attitude of a header for alfalfa harvesting |
| CN113243195B (en) * | 2021-05-11 | 2022-04-22 | 山东理工大学 | Transverse profiling device of header of grain harvester |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0139264A1 (en) * | 1983-10-07 | 1985-05-02 | Klöckner-Humboldt-Deutz Aktiengesellschaft | Device for reversing the rotation of the header auger of a combine |
| CN2549713Y (en) * | 2002-06-07 | 2003-05-14 | 刘玉龙 | Profile device for soy bean cutting and airing machine |
| CN1762191A (en) * | 2004-10-20 | 2006-04-26 | 东北农业大学 | Harvesting method and longitudinal huddle mechanism of cutting stems integrated in the center after stripping |
| JP2011115101A (en) * | 2009-12-04 | 2011-06-16 | Minoru Industrial Co Ltd | Harvesting machine for farm product |
| CN102652475A (en) * | 2012-06-04 | 2012-09-05 | 袁春福 | High-straw crop harvester |
| CN103828540A (en) * | 2014-03-07 | 2014-06-04 | 星光农机股份有限公司 | Header for combine harvesters |
| CN105340475A (en) * | 2015-11-27 | 2016-02-24 | 泰州常发农业工程技术有限公司 | Self-propelled leaf vegetable harvester |
| CN106211937A (en) * | 2016-08-17 | 2016-12-14 | 沃华农业科技（江苏）股份有限公司 | A kind of harvesting method of Herba Alii fistulosi |
| CN207382924U (en) * | 2017-08-30 | 2018-05-22 | 昆明理工大学 | A kind of furrow harvesting sugarcane profiling ceding of Taiwan |
| CN208940397U (en) * | 2018-09-07 | 2019-06-07 | 武汉理工大学 | A kind of bionical pineapple picking machine |
| CN110036759A (en) * | 2019-04-22 | 2019-07-23 | 山东省农业机械科学研究院 | Leafy vegetable cropper forward type divides standing grain profiling acquisition control system and harvest control method |
| EP3520597A1 (en) * | 2018-02-01 | 2019-08-07 | MacDon Industries Ltd. | Agricultural header with float control |
| CN211881094U (en) * | 2019-11-25 | 2020-11-10 | 江苏大学 | A horizontal and vertical profiling execution device for a header and a harvester equipped with the same |
-
2019
- 2019-11-25 CN CN201911165375.2A patent/CN110839400B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0139264A1 (en) * | 1983-10-07 | 1985-05-02 | Klöckner-Humboldt-Deutz Aktiengesellschaft | Device for reversing the rotation of the header auger of a combine |
| CN2549713Y (en) * | 2002-06-07 | 2003-05-14 | 刘玉龙 | Profile device for soy bean cutting and airing machine |
| CN1762191A (en) * | 2004-10-20 | 2006-04-26 | 东北农业大学 | Harvesting method and longitudinal huddle mechanism of cutting stems integrated in the center after stripping |
| JP2011115101A (en) * | 2009-12-04 | 2011-06-16 | Minoru Industrial Co Ltd | Harvesting machine for farm product |
| CN102652475A (en) * | 2012-06-04 | 2012-09-05 | 袁春福 | High-straw crop harvester |
| CN103828540A (en) * | 2014-03-07 | 2014-06-04 | 星光农机股份有限公司 | Header for combine harvesters |
| CN105340475A (en) * | 2015-11-27 | 2016-02-24 | 泰州常发农业工程技术有限公司 | Self-propelled leaf vegetable harvester |
| CN106211937A (en) * | 2016-08-17 | 2016-12-14 | 沃华农业科技（江苏）股份有限公司 | A kind of harvesting method of Herba Alii fistulosi |
| CN207382924U (en) * | 2017-08-30 | 2018-05-22 | 昆明理工大学 | A kind of furrow harvesting sugarcane profiling ceding of Taiwan |
| EP3520597A1 (en) * | 2018-02-01 | 2019-08-07 | MacDon Industries Ltd. | Agricultural header with float control |
| CN208940397U (en) * | 2018-09-07 | 2019-06-07 | 武汉理工大学 | A kind of bionical pineapple picking machine |
| CN110036759A (en) * | 2019-04-22 | 2019-07-23 | 山东省农业机械科学研究院 | Leafy vegetable cropper forward type divides standing grain profiling acquisition control system and harvest control method |
| CN211881094U (en) * | 2019-11-25 | 2020-11-10 | 江苏大学 | A horizontal and vertical profiling execution device for a header and a harvester equipped with the same |
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|---|---|
| CN110839400A (en) | 2020-02-28 |
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