Field cultivation platform

Abstract

The utility model discloses a field cultivation platform, which belongs to the technical field of cultivation equipment and comprises a work platform, a steering support mechanism and the like, and a cross beam of the work platform is a steel pipe and is fixedly connected with a beam frame and an end plate; the steering supporting mechanism comprises a rotating drum, an upper seat body, a lower seat body, a swing arm and a wheel set; through cooperative control of the first telescopic cylinder, the second telescopic cylinder and the third telescopic cylinder, the functions of height adjustment, flexible steering and off-ground steering assisting are achieved; an end plate is provided with an adjusting hole to adjust the terrain clearance of the platform, the stability is enhanced through the swing arm structure design, and the second telescopic cylinder expands the steering angle of the wheel set through a folding arm structure; the beam is of a sealed structure to form a hydraulic oil cavity, space is saved, and maintenance frequency is low. The farmland cultivation platform is flexible in steering, suitable for farmland operation in complex terrains and capable of efficiently completing tasks such as cultivation and transition, and adaptability and operation efficiency are greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of cultivation equipment, more particularly, the utility model relates to a field cultivation platform. BACKGROUND

[0002] The steering mechanism of the cultivation platform is crucial for improving the maneuverability and flexibility of the cultivation platform in different working environments and field conversion. In complex-shaped farmland in hilly areas or mountainous areas, the steerable field cultivation platform can easily work along the plot boundaries and irregular areas, and adapt to different planting modes and field conversion work. At the same time, the field cultivation platform needs to carry different cultivation functional components such as shoveling, plowing, harvesting, and pesticide spraying. The different cultivation functions make the working load of the field cultivation platform differ greatly, and the design of the steering mechanism needs to be reliable, durable, and stable to work stably under different load conditions and adapt to the height adjustment of different cultivation functions. Based on this, there is an urgent need to design a steerable, height-adjustable, and simple and reliable field cultivation platform.

[0003] After searching, the prior art similar to the existing technology, such as the Chinese patent application text with the publication number CN115776840A discloses an installed reversible plow, which realizes work steering adjustment based on the turning of the frame, and realizes height adjustment by relying on wheels, arms, adjusting members, and stop devices, etc. But there are the following problems: the working direction needs to be adjusted by turning the frame, the steering mode is single, the flexibility is limited, and it cannot adapt to normal cultivation, field conversion, and complex terrain work at the same time, such as sharp turns in the field, passing through narrow ridges, or multi-obstacle terrain, etc. UTILITARIAN CONTENT

[0004] In view of the above problems, the purpose of the utility model is to provide a field cultivation platform with flexible steering, height adjustment, and adaptability.

[0005] In order to achieve the purposes of the utility model, the utility model provides a field cultivation platform, which comprises:

[0006] The working platform comprises a crossbeam, a beam frame, and an end plate. The beam frame is supported at the lower part of the crossbeam and is used for installing various cultivation components. The two ends of the crossbeam and the beam frame are respectively connected with the end plate.

[0007] The steering support mechanism is installed at both ends of the working platform and is used for up-down and left-right swinging of the wheel set. The steering support mechanism comprises:

[0008] The rotating cylinder;

[0009] The upper seat body and the lower seat body are rotatably arranged at the upper and lower ends of the rotating cylinder.

[0010] The swing arm connected to the lower seat body of the rotating cylinder can swing up and down, and the wheel set is arranged at the end of the swing arm.

[0011] The first telescopic cylinder is connected with the upper seat body at one end and connected with the swing arm at the other end, and is used for driving the swing arm to swing up and down around the lower seat body to adjust the ground clearance of the wheel set;

[0012] The second telescopic cylinder is hinged to the end plate at one end and hinged to the lower seat body at the other end, and is used for driving the lower seat body and the swing arm to swing left and right around the axis of the rotating drum to realize the steering of the wheel set.

[0013] The third telescopic cylinder is vertically arranged in the rotating drum, and when the third telescopic cylinder is elongated, the ground can be supported to make the wheel set off the ground.

[0014] Preferably, a plurality of adjusting holes are arranged vertically on the end plate, and the steering support mechanism is connected with the adjusting holes through bolts and fixed by selecting adjusting holes of different heights to realize the overall installation height adjustment of the steering support mechanism.

[0015] Preferably, a supporting leg is arranged at the piston rod end of the third telescopic cylinder.

[0016] Preferably, the swing arm is provided with a connecting seat and a hinged arm, the connecting seat is used for being hinged to the lower seat body, and the hinged arm is used for being hinged to the first telescopic cylinder.

[0017] Preferably, the second telescopic cylinder is hinged to the lower seat body through a folding arm structure, and is used for increasing the swingable range of the lower seat body and expanding the steering adjustment angle of the wheel set.

[0018] Preferably, the folding arm structure comprises a first segment and a second segment, and the two are hinged through an intermediate hinge point; two hinged ears are arranged on the lower seat body and are hinged to the ends of the first segment and the second segment respectively; a short arm is hinged to the piston rod end of the second telescopic cylinder, and the free end of the short arm is hinged to the intermediate hinge point to form a connecting rod transmission structure.

[0019] Preferably, the cross beam is arranged as a closed hydraulic oil cavity, and hydraulic oil is contained in the cavity; a hydraulic pump is installed outside the end plate of the operation platform or the rotating drum of the steering support mechanism, and the hydraulic pump is communicated with the first telescopic cylinder, the second telescopic cylinder and the third telescopic cylinder through oil paths respectively, and is used for driving the telescopic cylinders to act.

[0020] The utility model at least has following beneficial effects:

[0021] 1. The utility model can realize operation platform height adjustment and accurate steering, adapt to complex terrain and different plowing depth requirements, whether normal plowing, field conversion or complex terrain operation, through three-stage telescopic cylinder cooperative control, all can easily cope with.

[0022] 2. The steering support mechanism designed in the utility model has the characteristics of flexible and labor-saving steering, and the steering support mechanism realizes flexible rotation through the rotating drum, the upper and lower seat bodies and the thrust bearing, the swing arm is hinged to the lower seat body and cooperates with the wheel set; the folding arm structure connects the second telescopic cylinder and the lower seat body, so that the steering angle of the wheel set is increased, the small-radius steering capability is enhanced, and the switching requirement in different states during field sharp turning and field changing is met; the third telescopic cylinder supports the foot to touch the ground, so that the wheel set is lifted off the ground, the steering friction is reduced, and the steering is more labor-saving in cooperation with the second telescopic cylinder.

[0023] 3. The utility model discloses a three-stage telescopic cylinder cooperative control, realizes height adjustment, steering adjustment and auxiliary steering functions, simplifies the overall structure, and reduces the maintenance difficulty.

[0024] The other advantages, objects and features of the utility model will be embodied in part through the following description, and will be understood by the person skilled in the art through the research and practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is the structural schematic view of the field cultivation platform disclosed by the utility model;

[0026] Figure 2 It is the structural schematic view of the rotating drum disclosed by the utility model;

[0027] Figure 3 It is the structural schematic view of the swing arm and the wheel set disclosed by the utility model;

[0028] Figure 4 It is the structural schematic view of the folding arm structure and the lower seat body disclosed by the utility model;

[0029] Figure 5 It is the structural schematic view of the cross beam, beam frame and end plate disclosed by the utility model.

[0030] Among them, the operation platform 10; beam frame 101; cross beam 102; end plate 103; wheel set 20; steering mechanism 30; rotating drum 301; upper seat body 401; lower seat body 402; first hinged lug 403; second hinged lug 404; upper connecting plate 405; lower connecting plate 406; swing arm 50; hinged arm 501; connecting seat 502; positioning pin hole 503; first telescopic cylinder 60; hydraulic pump 70; second telescopic cylinder 80; folding arm structure 801; first section 802; second section 803; intermediate hinge point 804; short arm 805; third telescopic cylinder 90. DETAILED DESCRIPTION

[0031] The utility model will be further described in detail in combination with examples, so that the person skilled in the art can implement according to the description.

[0032] It should be understood that the terms such as "have", "contain" and "include" used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

[0033] As shown in FIGS. 1-5, the present embodiment provides a field plowing platform. The crossbeam 102 of the working platform 10 is a steel pipe, and the lower part is welded with a beam frame 101, and the beam frame 101 is provided with mounting holes for fixing plowing components (such as seeders, tillage shovels, etc.). The two ends of the crossbeam 102 and the beam frame 101 are fixedly connected with the end plate 103 through bolts.

[0034] In the turning support mechanism 30, the rotating drum 301 is a hollow cylinder, and the upper and lower ends thereof are connected with the upper seat body 401 and the lower seat body 402 through thrust bearings, so that the upper seat body 401 and the lower seat body 402 can rotate around the axis of the rotating drum 301. The swing arm 50 is an L-shaped structure, one end of which is hinged with the lower seat body 402 through a pin shaft, and the other end of which is provided with the wheel set 20. The rotating drum 301 located on the same side of the working platform is reinforcedly connected through the upper connecting plate 405 and the lower connecting plate 406.

[0035] The first telescopic cylinder 60 is a hydraulic cylinder, the cylinder body end of which is hinged to the upper seat body 401, and the piston rod end of which is hinged to the middle part of the swing arm 50. The pitch angle of the swing arm 50 is controlled through the telescopic movement, so as to adjust the height of the working platform 10 from the ground.

[0036] The second telescopic cylinder 80 is also a hydraulic cylinder, the cylinder body end of which is hinged to the end plate 103, and the piston rod end of which is hinged to the side wall of the lower seat body 402. When the second telescopic cylinder 80 is telescoped, the lower seat body 402 is pushed to drive the swing arm 50 and the wheel set 20 to swing horizontally around the axis of the rotating drum 301, so as to realize the turning adjustment.

[0037] The third telescopic cylinder 90 is a hydraulic push rod, which is vertically fixed at the bottom of the inner cavity of the rotating drum 301. When the piston rod thereof is extended downward, the ground can be supported, so that the wheel set 20 is lifted off the ground. At this time, the turning is more labor-saving through the driving of the second telescopic cylinder 80. During the operation, the third telescopic cylinder 90 is retracted, and the wheel set 20 is landed to bear the weight of the platform. Preferably, a detachable supporting foot is arranged at the piston rod end of the third telescopic cylinder 90, which is used for increasing the contact area with the ground.

[0038] The embodiment realizes the height adjustment, flexible steering and off-road steering auxiliary functions of the field cultivation platform through the cooperative control of the three-stage telescopic cylinders, and is especially suitable for field operation in complex terrain. When it is necessary to change the field, such as crossing a ridge or changing the field on the road, or when the steering resistance is large, for example, in a wetland with more silt or an area with thickened soil layer, the third telescopic cylinder 90 is elongated, so that the supporting foot touches the ground, and the wheel set 20 is off the ground. At this time, the direction can be easily adjusted through the second telescopic cylinder 80, and after the steering operation is completed, the third telescopic cylinder 90 is retracted to quickly restore normal operation. During the field change process, the rotating direction of the wheel set 20 is adjusted to be parallel to the length direction of the operation platform 10 through the second telescopic cylinder 80, so that the operation platform 10 can walk stably along the ridge or the road; and when it is necessary to perform cultivation operation, the rotating direction of the wheel set 20 is adjusted to be perpendicular to the length direction of the operation platform 10 through the second telescopic cylinder 80, so that the operation platform 10 can efficiently perform cultivation operation across the cultivation plot. This unique design greatly improves the adaptability and operation efficiency of the field cultivation platform.

[0039] In another embodiment, two rows of vertically extending long circular holes are symmetrically formed on both sides of the end plate 103 as adjustment holes, and each row contains 3-30 hole positions. The outer side of the rotating barrel 301 of the steering support mechanism 30 is welded with a connecting plate, and the connecting plate is provided with through holes corresponding to the adjustment holes. During installation, the bolts are sequentially inserted through the adjustment holes and the through holes of the connecting plate and are locked by nuts.

[0040] When it is necessary to adjust the overall ground clearance of the operation platform 10, the bolts can be loosened, the steering support mechanism 30 is vertically moved to the target position along the adjustment hole, and then fastened again. For example, when operating in a soft field, the installation height of the steering support mechanism 30 can be adjusted to be low to lower the platform gravity center; when replacing large cultivation components, the installation height can be adjusted to be high to avoid interference. The adjustment hole is preferably a waist-shaped hole, which is convenient for fine adjustment and positioning of the height.

[0041] In another embodiment, the swing arm 50 is provided with a connecting seat 502 for hinging with the lower seat body 402 and a hinging arm 501 for hinging with the first telescopic cylinder 60. Preferably, the connecting seat 502 is integrally formed with the main body of the swing arm 50 to ensure the stability and integrity of the structure. The connecting seat 502 is designed with a positioning pin hole 503 and a hinging shaft mounting position for hinging with the lower seat body 402, so that the swing arm 50 can rotate more smoothly and flexibly around the lower seat body 402. Meanwhile, the swing arm 50 is also provided with the hinging arm 501 adapted to the end of the piston rod of the first telescopic cylinder 60, which is arranged at the upper part of the connecting seat 502 and hinged with the end of the piston rod of the first telescopic cylinder 60 through a hole position, thereby providing an additional mechanical support point for the entire swing arm 50, so that the first telescopic cylinder 60 can push the swing arm 50 to connect the wheel set 20 to swing up and down, thereby adjusting the support height. Preferably, the hinging arm 501 is welded and fixed with the swing arm 50 and the connecting seat 502 to increase the structural strength and further enhance the stability of the swing arm 50 under complex stress conditions.

[0042] In another embodiment, the second telescopic cylinder 80 is hinged with the lower seat body 402 through a folding arm structure 801; the cylinder end of the second telescopic cylinder 80 is hinged with the working platform 10, and the piston rod end is linked with the folding arm structure 801 through a short arm 805. The length of the short arm 805 is not more than 20 cm, such as 5-10 cm. The first segment 802 and the second segment 803 of the folding arm structure 801 are rigid arms, which are hingedly connected through a pin shaft at a middle hinging point 804. The lower seat body 402 has two groups of hinging ears distributed at intervals on both sides, including a first hinging ear 403 and a second hinging ear 404, which are hingedly connected with the ends of the first segment 802 and the second segment 803 through pin shafts, respectively.

[0043] When the second telescopic cylinder 80 is telescoped, the short arm 805 pushes the middle hinging point 804, forcing the first segment 802 and the second segment 803 to fold or unfold around the hinging ears, thereby amplifying the swing stroke of the lower seat body 402. For example, when the second telescopic cylinder 80 is extended, the folding arm structure 801 is unfolded to drive the lower seat body 402 to swing to the left; when it is retracted, the folding arm structure 801 is folded to drive the lower seat body 402 to swing to the right. Compared with the direct hinging, the folding arm structure 801 increases the turning angle of the wheel set 20 to 90°, significantly enhances the small-radius turning ability, and meets the needs of the wheel set 20 switching from the transverse tillage state to the longitudinal movement state during the field turning and the field switching.

[0044] In actual operation, when passing through a narrow ridge, the second telescopic cylinder 80 is operated to turn the wheel set 20 to the longitudinal direction, and the third telescopic cylinder 90 is operated to lift the platform, so that the scene adjustment can be quickly completed. This design breaks through the angle limitation of the traditional steering mechanism, and is especially suitable for rice fields, terraced fields and other obstacle terrains.

[0045] Further, a limiting block is arranged at the hinge between the short arm 805 and the intermediate hinge point 804, so as to limit the maximum unfolding angle of the folding arm structure 801 to less than 150°, thereby avoiding mechanical interference. The hinge ears, the folding arm structure 801 and the hinge points of the short arm 805 are all provided with self-lubricating bearings, so as to ensure the flexibility of the operation under the bad field conditions.

[0046] In another embodiment, the cross beam 102 is welded into a sealed structure by a rectangular steel pipe, and a hydraulic oil cavity is formed in the inside of the cross beam 102. An oil inlet and an oil level observation window are arranged at the top of the cross beam 102, and the bottom of the cross beam 102 is connected to the hydraulic pump 70 through an oil path. The hydraulic pump 70 is preferably fixed outside the end plate 103. The oil path includes a hard oil pipe and a hose, wherein the hard oil pipe is embedded in the inner cavity of the cross beam 102, and the hose is arranged along the beam frame 101 and connected to the inlet and outlet oil ports of each telescopic cylinder.

[0047] During operation, the hydraulic pump 70 pressurizes and delivers the hydraulic oil in the cross beam 102 to the first telescopic cylinder 60, the second telescopic cylinder 80 and the third telescopic cylinder 90, so as to realize the following cooperative control:

[0048] The first telescopic cylinder 60 adjusts the pitch angle of the swing arm 50 to control the height of the platform from the ground;

[0049] The second telescopic cylinder 80 drives the folding arm structure 801 to expand the steering angle of the wheel set 20;

[0050] The third telescopic cylinder 90 supports the ground to assist the wheel set 20 in steering off the ground.

[0051] Preferably, a filter screen is arranged in the hydraulic oil cavity of the cross beam 102 to purify the hydraulic oil. The hydraulic control valve group is integrated on the end plate 103, and each telescopic cylinder is remotely controlled by an electric control handle. This design embeds the hydraulic system in the working platform, avoids the external oil pipe from being entangled by the field debris, and uses the metal structure of the cross beam 102 as a radiator to prevent the hydraulic oil from overheating.

[0052] During operation, the hydraulic pump 70 continuously absorbs and circulates the oil from the cross beam 102. The hard pipe section of the oil path reduces the pressure loss, and the hose section adapts to the swing of the steering support mechanism 30. Compared with the independent oil tank scheme, the design of the present embodiment saves space and reduces the maintenance frequency, and is especially suitable for dusty and humid farmland environments.

[0053] The utility model implementation process as follows:

[0054] When normal cultivation operation, the third telescopic cylinder 90 is retracted, and the wheel group 20 is landed to bear the platform weight.According to the topography and cultivation demand, by operating the first telescopic cylinder 60, the height of the operation platform 10 is adjusted to make the cultivation component be in the best operation position.Operating the second telescopic cylinder 80, the rotating direction of the wheel group 20 is adjusted to be perpendicular to the length direction of the operation platform 10, which facilitates the operation platform 10 to cross the cultivated land for efficient cultivation operation.

[0055] When the field operation, when needing to cross the field ridge or on the road to transfer the field, the third telescopic cylinder 90 is operated to elongate, makes the supporting foot touch the ground, and the wheel group 20 is off the ground.Then operating the second telescopic cylinder 80, the rotating direction of the wheel group 20 is adjusted to be parallel to the length direction of the operation platform 10, and the steering operation is easily completed, and after retracting the third telescopic cylinder 90, the operation platform 10 can walk along the field ridge or the road stably.

[0056] When the complex topography operation, in the silt more or soil layer thickening and so on the area of greater steering resistance, the third telescopic cylinder 90 is also operated to make the wheel group 20 off the ground, and the second telescopic cylinder 80 is used to drive steering, and since the ground friction is reduced, the steering is more labor-saving and efficient.When the rice field, terrace and other multi-obstacle topography operation, the second telescopic cylinder 80 drives the folding arm structure 801, and the wheel group 20 is increased to 90 °, meets the field sharp turn and the demand of the wheel group 20 from the lateral cultivation state to the longitudinal movement state when transferring the field, and easily deals with the complex topography.

[0057] Although the embodiments of the utility model have been disclosed as above, it is not limited to the application listed in the specification and embodiments only.It can be fully applied to various fields suitable for the utility model.For those skilled in the art, other modifications can be easily realized.

Claims

1. A field tillage platform characterized by, The utility model relates to a kind of agricultural machinery, including: Work platform, it includes crossbeam, beam frame and end plate, beam frame is supported in the lower part of crossbeam, for installing various cultivation components;Crossbeam and the both ends of beam frame are connected with end plate respectively; Steering support mechanism; It is installed in the both ends of work platform, for wheel group up-down swing and left-right swing, steering support mechanism includes: Rotary drum; Upper seat body and lower seat body are rotatably arranged in the upper and lower ends of rotary drum; Swing arm, swing arm end is provided with wheel group, is connected in the lower seat body of rotary drum and can swing up and down; First telescopic cylinder, one end is connected with the upper seat body, the other end is connected with swing arm, for driving swing arm to swing up and down around lower seat body to adjust the ground clearance of wheel group; Second telescopic cylinder, one end is hinged to end plate, the other end is hinged to lower seat body, for driving lower seat body and swing arm to swing left and right around rotary drum axis to realize wheel group steering; Third telescopic cylinder, it is vertically arranged in the inside of rotary drum, third telescopic cylinder can support ground when elongation makes wheel group off the ground.

2. The field cultivation platform of claim 1, wherein, A plurality of adjusting holes are arranged vertically on the end plate, and the steering support mechanism is connected with the adjusting holes by bolts, and the overall installation height of the steering support mechanism is adjusted by selecting adjusting holes of different heights.

3. The field cultivation platform of claim 1, wherein, The piston rod end of the third telescopic cylinder is provided with a supporting foot.

4. The field cultivation platform of claim 1, wherein, The swing arm is provided with a connecting seat and a hinged arm, the connecting seat is used for being hinged to the lower seat body, and the hinged arm is used for being hinged to the first telescopic cylinder.

5. The field cultivation platform of claim 1 or 4, wherein, The second telescopic cylinder is hinged to the lower seat body through a folding arm structure, for increasing the swingable range of the lower seat body and expanding the steering adjustment angle of the wheel group.

6. The field cultivation platform of claim 5, wherein, The folding arm structure includes a first segment and a second segment, and the two are hinged through an intermediate hinge point;The lower seat body is provided with two spaced-apart hinge ears, which are respectively hinged to the ends of the first segment and the second segment;The piston rod end of the second telescopic cylinder is hinged to a short arm, and the free end of the short arm is hinged to the intermediate hinge point.

7. The field cultivation platform of claim 1, wherein, The crossbeam is arranged as a closed hydraulic oil cavity, which contains hydraulic oil inside;Hydraulic pump is installed outside the rotary drum of the steering support mechanism or the end plate of the work platform, and the hydraulic pump is communicated with the first telescopic cylinder, the second telescopic cylinder and the third telescopic cylinder through oil circuit respectively, for driving each telescopic cylinder to act.

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