Forage harvester

Abstract

The utility model relates to a forage grass harvester. The pasture harvester comprises a walking mechanism, a machine body, a lifting platform, a lifting driving mechanism, a harvesting mechanism and a collecting bin. The lifting driving mechanism is used for driving the lifting platform to ascend or descend. The harvesting mechanism comprises a harvesting platform, a rotary driving part and a harvesting conveying structure. During use, the lifting driving mechanism is used for driving the lifting platform to drive the harvesting platform to ascend or descend, so that the harvesting platform is adjusted to the position which is the same as or slightly higher than the height of a to-be-harvested layer on the multi-layer planting frame, and then the rotary driving part is used for switching the working state of the harvesting mechanism to the harvesting state. Then the walking mechanism is used for driving the whole pasture harvester to walk on the aisles among the multiple layers of planting frames, the harvesting platform extends to the position above the to-be-harvested layer while walking is conducted, and pasture on the to-be-harvested layer is harvested and collected through the harvesting and conveying structure. Therefore, the pasture harvester can improve the pasture harvesting efficiency in a smart pasture planting factory and reduce the pasture harvesting cost.

Description

Technical Field

[0001] The utility model relates to the technical field of forage harvesting equipment, in particular to a forage harvester. Background Art

[0002] With the continuous development of soilless cultivation technology, soilless cultivation of forage grass has become an important means to reduce breeding costs. The multi-layer planting in the smart forage grass planting factory has become an important source of forage grass in the breeding industry due to its advantages such as small footprint, short pasture growth cycle and low dependence on external climate.

[0003] At present, when harvesting grass in smart grass planting factories, either manual harvesting is used, or the grass plug trays are manually removed from the multi-layer planting racks and then sent to the harvesting equipment for automatic harvesting. Regardless of the harvesting method, the grass plug trays need to be removed from the multi-layer planting racks and put back on the grass harvesting racks after the grass is harvested. In the face of large-scale smart grass planting factories, the traditional grass harvesting method still has the problem of low grass harvesting efficiency. Utility Model Content

[0004] Based on this, it is necessary to provide a forage harvester that can be used in an intelligent forage planting workshop and can greatly improve the efficiency of forage harvesting.

[0005] A forage harvester, comprising:

[0006] Walking mechanism;

[0007] A fuselage, mounted on the walking mechanism;

[0008] A lifting platform is slidably mounted on the fuselage;

[0009] A lifting drive mechanism, which is in driving connection with the lifting platform and is used to drive the lifting platform to rise or fall;

[0010] A harvesting mechanism, comprising a harvesting platform, a rotating drive member, and a harvesting and conveying structure; one end of the harvesting platform is rotatably mounted on the lifting platform; the harvesting and conveying structure is mounted on the harvesting platform; the rotating drive member is transmission-connected to the harvesting platform, and is used to drive the harvesting platform to rotate transversely around a connecting shaft between the harvesting platform and the lifting platform, so as to switch the working state of the harvesting mechanism to a harvesting state in which the harvesting platform is opened outward to the side of the fuselage and to an unharvested state in which the harvesting platform is retracted inward to the front of the fuselage;

[0011] A material receiving bin is installed on the machine body and is located below the lifting platform;

[0012] Among them, the harvesting and conveying structure is constructed to be able to harvest the grass on the multi-layer planting racks in the smart forage workshop in the harvesting state and convey the harvested grass to the collecting bin.

[0013] When the forage harvester needs to harvest the forage on the multi-layer planting racks in the smart forage planting factory, the lifting drive mechanism is used to drive the lifting platform to drive the harvesting platform to rise or fall, so as to adjust the harvesting platform to a position that is the same as or slightly higher than the height of the layer to be harvested on the multi-layer planting rack, and then the rotary drive member is used to switch the working state of the harvesting mechanism to the harvesting state, and then the walking mechanism is used to drive the entire forage harvester to walk in the aisles between the multi-layer planting racks. While walking, the harvesting platform extends above the layer to be harvested and uses the harvesting and conveying structure to harvest and collect the forage on the layer to be harvested. Therefore, the forage harvester can directly automatically harvest all the forage on the multi-layer planting racks in the smart forage planting factory, eliminating the process of manually taking the forage plug trays off the multi-layer planting racks for harvesting and putting the harvested forage plug trays back into the multi-layer planting racks, greatly improving the harvesting speed of forage in the smart forage planting factory, while saving a lot of labor costs. Therefore, the use of the above-mentioned forage harvester greatly improves the efficiency of forage harvesting in the smart forage planting factory and reduces the cost of forage harvesting. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural schematic diagram of a forage harvester in a preferred embodiment of the utility model in an unharvested state;

[0015] Figure 2 for Figure 1 A side view of the forage harvester shown;

[0016] Figure 3 This is a structural schematic diagram of a forage harvester in a preferred embodiment of the utility model in a harvesting state;

[0017] Figure 4 for Figure 1 The schematic diagram of the structure of the harvesting mechanism in the forage harvester shown is shown in one viewing angle;

[0018] Figure 5 for Figure 1 The schematic diagram of the structure of the harvesting mechanism in the forage harvester shown is shown in another viewing angle;

[0019] Figure 6 for Figure 1 The structural schematic diagram of the collecting bin in the forage harvester shown;

[0020] Figure 7 for Figure 2 AA section view of the forage harvester shown.

[0021] Description of reference numerals: 10, forage harvester; 100, walking mechanism; 200, fuselage; 210, base; 220, telescopic door frame; 300, lifting platform; 400, lifting drive mechanism; 500, harvesting mechanism; 510, harvesting platform; 511, harvesting area; 512, material guide area; 513, grass support trough; 520, rotating drive member; 530, harvesting and conveying structure; 531, bracket; 532, cutting knife; 533, pushing plate; 534, harvesting drive member; 535, chain transmission assembly; 5351, first sprocket; 5352, second sprocket; 53 53. Chain; 540. First material baffle plate; 550. Second material baffle plate; 560. Third material baffle plate; 600. Material receiving bin; 610. Bottom plate; 620. Side plate; 630. Front side door; 640. Bin door drive; 700. Counterweight; 810. Transmission shaft; 820. First transmission wheel; 830. Second transmission wheel; 840. Third transmission wheel; 850. First transmission bar; 860. Second transmission bar; 870. Fourth transmission wheel; 880. Third transmission bar; 900. Roller assembly; 910. Telescopic frame; 920. Moving wheel; 1001. Material receiving net bag. DETAILED DESCRIPTION

[0022] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively with reference to the accompanying drawings. The accompanying drawings provide preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0024] When describing positional relationships, unless otherwise specified, when an element is referred to as being "on" another element, it can be directly on the other element or there can be an intermediate element. It is also understood that when an element is referred to as being "between" two elements, it can be the only one between the two elements, or there can be one or more intermediate elements.

[0025] In the case of using “including”, “having”, and “comprising” described herein, another component may be added unless a clear limiting term such as “only”, “consisting of”, etc. is used. Unless mentioned otherwise, a term in the singular form may include a plural form and should not be understood as being one in number.

[0026] In addition, the drawings are not drawn to a 1:1 scale, and the relative sizes of the elements in the drawings are drawn only as examples and not necessarily according to the true scale.

[0027] See also Figure 1 and Figure 2 The forage harvester 10 in the preferred embodiment of the utility model is used for forage harvesting operations in a smart forage planting factory. The forage harvester 10 includes a walking mechanism 100, a fuselage 200, a lifting platform 300, a lifting drive mechanism 400, a harvesting mechanism 500 and a collecting bin 600.

[0028] The fuselage 200 is installed on the walking mechanism 100. The walking mechanism 100 is used to drive the fuselage 200 to move on the ground, that is, the walking mechanism 100 can drive the whole machine to move on the ground.

[0029] The lifting platform 300 is slidably mounted on the body 200 .

[0030] The lifting drive mechanism 400 is in transmission connection with the lifting platform 300 and is used to drive the lifting platform 300 to rise or fall.

[0031] Please also read Figures 3 to 5 The harvesting mechanism 500 includes a harvesting platform 510, a rotary drive member 520, and a harvesting and conveying structure 530. One end of the harvesting platform 510 is rotatably mounted on the lifting platform 300. The harvesting and conveying structure 530 is mounted on the harvesting platform 510. The rotary drive member 520 is transmission-connected to the harvesting platform 510, and is used to drive the harvesting platform 510 to rotate transversely around the connecting shaft between the harvesting platform 510 and the lifting platform 300, so as to switch the working state of the harvesting mechanism 500 to a harvesting state in which the harvesting platform 510 is opened outward to the side of the fuselage 200 and a non-harvesting state in which the harvesting platform 510 is retracted inward to the front of the fuselage 200.

[0032] The material receiving bin 600 is installed on the fuselage 200 and is located below the lifting platform 300. Specifically, the material receiving bin 600 is located below the harvesting platform 510 near one end of the fuselage 200.

[0033] The harvesting and conveying structure 530 is configured to harvest the grass on the multi-layer planting racks in the smart forage workshop and convey the harvested grass to the collecting bin 600 in the harvesting state. Therefore, the harvesting and conveying structure 530 has the function of cutting the grass and conveying the cut grass to the collecting bin 600.

[0034] For ease of understanding, the process of harvesting grass using the grass harvester 10 is briefly described below:

[0035] Parking the forage harvester 10 in an unharvested state at one end of the aisle in the smart forage planting factory;

[0036] The lifting platform 300 is driven by the lifting drive mechanism 400 to drive the harvesting mechanism 500 to rise or fall until the height of the harvesting platform 510 is the same as or slightly higher than the height of the layer to be harvested on the multi-layer harvesting frame;

[0037] The harvesting platform 510 is driven by the rotary driving member 520 to drive the harvesting conveying structure 530 to rotate until the working state of the harvesting mechanism 500 is switched to the harvesting state;

[0038] The walking mechanism 100 is used to walk in the aisles between the multi-layer planting racks at a preset speed. At this time, the harvesting platform 510 extends to the layer to be harvested of the multi-layer planting rack. As the forage harvester 10 moves forward, the harvesting and conveying structure 530 cuts the forage on the layer to be harvested and conveys the cut forage to the collecting bin 600 for collection.

[0039] In this way, through the lifting drive mechanism 400 and the lifting platform 300, the forage harvester 10 can harvest the grass on each layer of the multi-layer planting racks in the smart forage planting factory. Through the cooperation of the harvesting mechanism 500 and the walking mechanism 100, the grass on the multi-layer planting racks can be quickly and automatically harvested. Therefore, the forage harvester 10 is used to automatically harvest the grass on the multi-layer planting racks in the smart forage planting factory, eliminating the process of manually taking the grass plug trays off the multi-layer planting racks for harvesting and putting the harvested grass plug trays back into the multi-layer planting racks, greatly improving the harvesting speed of the grass in the smart forage planting factory and saving a lot of labor costs.

[0040] When there is no need to harvest grass, the harvesting platform 510 needs to be driven to rotate by the rotary drive mechanism until the harvesting platform 510 is retracted inward to the front of the fuselage 200, and the working state of the grass harvester 10 can be switched to the unharvested state to prevent the harvesting mechanism 500 from colliding with nearby objects during the driving of the grass harvester 10, thereby improving the convenience and safety of using the grass harvester 10.

[0041] Therefore, the use of the above-mentioned forage harvester 10 greatly reduces the forage harvesting efficiency in the smart forage planting factory and reduces the forage planting cost.

[0042] Please refer again Figure 5In some embodiments, the harvesting platform 510 has a harvesting area 511 at one end away from the body 200, and a material guide area 512 at one end close to the body 200. The harvesting area 511 is formed with a plurality of grass-supporting grooves 513 at intervals along the longitudinal direction of the harvesting platform 510. When the harvesting mechanism 500 is in the harvesting state, each grass-supporting groove 513 is located at the front edge of the harvesting platform 510 in the walking direction of the walking mechanism 100. The grass-supporting groove 513 may be a through groove in the shape of a rectangular groove, a V-shaped groove, a U-shaped groove, a tooth groove, etc.

[0043] The harvesting and conveying structure 530 includes a bracket 531, a cutting knife 532, a pushing plate 533, and a harvesting driving member 534. The bracket 531 is installed on the harvesting platform 510. The cutting knife 532 and the pushing plate 533 are both installed on the bracket 531.

[0044] The harvesting drive 534 is respectively connected to the cutting knife 532 and the pushing plate 533, and is used to drive the cutting knife 532 and the pushing plate 533 to rotate around the bracket 531 on the harvesting platform 510, so that the cutting knife 532 cuts the grass in the grass groove 513, and the pushing plate 533 pushes the cut grass into the collecting bin 600 through the material guiding area 512.

[0045] It should be noted that the longitudinal direction of the harvesting platform 510 refers to a direction that is perpendicular or nearly perpendicular to the traveling direction of the traveling mechanism 100 in the harvesting state, and a direction that is consistent or nearly consistent with the traveling direction of the traveling mechanism 100 in the unharvested state.

[0046] The grass on the multi-layer planting rack is arranged in rows and columns or in a matrix of cave planting. When using the above-mentioned grass harvester 10 to harvest grass, each grass supporting groove 513 must be aligned with a row of grass. When the walking mechanism 100 drives the entire grass harvester 10 to move forward, the grass first enters the corresponding grass supporting groove 513. At the same time, the harvesting drive member 534 drives the cutting knife 532 and the pushing plate 533 to rotate around the bracket 531. The cutting knife 532 cuts the grass in the grass supporting groove 513 during the rotation. The pushing plate 533 located behind the cutting knife 532 immediately pushes the cut grass forward during the rotation until it passes through the material guide area 512 and falls into the receiving bin 600.

[0047] Therefore, the grass supporting groove 513 can support the entire grass near the root of the grass to ensure that the cutting knife 532 can effectively cut the grass when passing through the grass supporting groove 513, and the pushing plate 533 moves synchronously with the cutting knife 532 to ensure that the cut grass can be pushed into the collecting bin 600 in a timely and smooth manner, thereby reducing the probability of the grass not being cut or the cut grass being pushed untimely during the grass harvesting process, thereby greatly improving the grass harvesting effect.

[0048] Furthermore, in some embodiments, the harvesting area 511 is a double-layer structure with a knife passing space (not shown). The grass support groove 513 is connected to the knife passing space. The harvesting drive member 534 is used to drive the cutting knife 532 to enter the knife passing space and then cross the grass support groove 513, and is also used to drive the push plate 533 to pass above the harvesting area 511.

[0049] During the grass harvesting process, the grass in the grass supporting groove 513 is supported by the double-layer structure at the upper and lower points. Then, when the cutting knife 532 passes through the grass supporting groove 513 from the knife passing space, the cutting knife 532 will cut the grass between the upper and lower supporting points, so that the cutting knife 532 is better stressed during the process of cutting the grass, and the grass is easier to cut, which further improves the grass harvesting effect.

[0050] Further, in some embodiments, the cutting knives 532 and the pushing plates 533 are arranged one by one. The multiple cutting knives 532 are arranged in sequence along the rotation direction. In the rotation direction of the cutting knives 532, the pushing plates 533 are arranged at intervals behind the corresponding cutting knives 532.

[0051] That is, among the multiple cutting knives 532 and the multiple pushing plates 533, each cutting knives 532 and the corresponding pushing plates 533 are grouped together to cooperate with each other to cut and transport the grass. By setting up multiple groups of cutting knives 532 and pushing plates 533, the frequency of mowing and pushing can be increased. Therefore, when harvesting grass on the multi-layer planting rack, even if the walking mechanism 100 drives the entire grass harvester 10 to move forward at a faster speed, the multiple groups of cutting knives 532 and pushing plates 533 rotate around the bracket 531 in turn, and it is still in time to harvest the grass on the multi-layer planting rack. Therefore, setting up multiple cutting knives 532 and pushing plates 533 in one-to-one correspondence can further improve the harvesting efficiency of grass, which is conducive to further reducing the cost of grass planting.

[0052] Furthermore, in some embodiments, the material guide area 512 is provided with a first material baffle plate 540. The first material baffle plate 540 and the grass support groove 513 are located on the same side of the harvesting platform 510. One end of the first material baffle plate 540 extends to the edge of one end of the harvesting platform 510 away from the harvesting area 511, and the other end extends to a position near the harvesting area 511. A second material baffle plate 550 is also provided on one side of the bracket 531 close to the grass support groove 513. One end of the second material baffle plate 550 extends to the harvesting area 511, and the other end extends to the material guide area 512. The first material baffle plate 540 and the second material baffle plate 550 are arranged at intervals.

[0053] The provision of the first baffle plate 540 and the second baffle plate 550 can reduce the probability of the grass falling out of the two sides of the harvesting platform 510 when the pushing plate 533 pushes the cut grass in the harvesting area 511 to the collecting bin 600, thereby reducing waste during the grass harvesting process.

[0054] Among them, the first baffle plate 540 can be a flat plate structure, or a bent plate that bends outward at one end close to the harvesting area 511, or a plate structure of other shapes such as an arc. The second baffle plate 550 can be a plain plate, or a hollow plate, etc., as long as it can block the grass during the pushing process.

[0055] Further, in some embodiments, a third material blocking plate 560 is provided at one end of the harvesting area 511 away from the material guiding area 512. Specifically, the material blocking plate is arranged perpendicular to or crosswise to the spacing direction of the plurality of grass supporting grooves 513.

[0056] In this way, the third baffle plate 560 can prevent the cut grass from falling out from the end of the harvesting platform 510 away from the fuselage 200 during the grass harvesting process, thereby reducing waste during the grass harvesting process.

[0057] Please refer again Figure 5 In some embodiments, the harvesting conveying structure 530 further includes two chain drive assemblies 535. The chain drive assembly 535 includes a first sprocket 5351, a second sprocket 5352, and a chain 5353. The chain 5353 is tensioned between the first sprocket 5351 and the second sprocket 5352.

[0058] Two first sprocket wheels 5351 are spaced apart and arranged at one end of the bracket 531 in a direction perpendicular to the harvesting platform 510, and are both connected to the output shaft of the harvesting driving member 534. Two second sprocket wheels 5352 are spaced apart and coaxially arranged in a direction perpendicular to the harvesting platform 510, and are both rotatably mounted on the other end of the bracket 531. One end of the cutting knife 532 is respectively connected to the two chains 5353. One end of the pushing plate 533 is respectively connected to the two chains 5353.

[0059] In this way, power is transmitted between the harvesting drive 534 and the cutting knife 532, and between the harvesting drive 534 and the pushing plate 533, through the two chain transmission assemblies 535, and the two chain transmission assemblies 535 are arranged at intervals in the vertical direction, so that the cutting knife 532 and the pushing plate 533 have two force points to ensure that the cutting knife 532 and the pushing plate 533 operate stably during the forage harvesting operation, and the force application effect is better when the cutting knife 532 cuts the grass and the pushing plate 533 pushes the grass, thereby achieving the purpose of improving the forage harvesting effect.

[0060] Please refer again Figure 1In some embodiments, there are two harvesting mechanisms 500. The two harvesting platforms 510 are rotatably mounted on the left and right ends of the lifting platform 300. When the harvesting mechanism 500 is in a harvesting state, one harvesting platform 510 is opened outward to the side of the fuselage 200, or the two harvesting platforms 510 are opened to the left and right sides of the fuselage 200. When the harvesting mechanism 500 is in a non-harvesting state, the two harvesting platforms 510 are both located in front of the fuselage 200 and are spaced apart along the left and right directions of the fuselage 200.

[0061] During actual use, if it is necessary to harvest the grass on the multi-layer planting racks on one side of the aisle, it is only necessary to open the harvesting and conveying structure 530 close to the side of the multi-layer planting rack outward; if it is necessary to harvest the grass on the multi-layer planting racks on both sides of the aisle at the same time, it is necessary to open both harvesting and conveying structures 530 outward to the left and right sides of the fuselage 200 to facilitate the simultaneous harvesting of the grass on the multi-layer planting racks on both sides of the aisle. That is to say, the above-mentioned grass harvester 10 can harvest the grass on two multi-layer planting racks at the same time, further improving the grass harvesting efficiency in the smart planting workshop.

[0062] Please also read Figure 6 In some embodiments, the collecting bin 600 includes a bottom plate 610, a side plate 620 arranged along the circumference of the bottom plate 610 and connected to the bottom plate 610, a front side door 630 and a bin door driving member 640. The bottom plate 610 and the side plate 620 are arranged to form a hollow structure with an opening at the top. The bottom plate 610 is arranged to be inclined downward along the direction from the rear to the front of the fuselage 200 relative to the harvesting platform 510. A discharge port (not marked in the figure) is formed on the side of the side plate 620 away from the fuselage 200. One end of the front side door 630 is rotatably connected to the edge of the discharge port. The bin door driving member 640 is transmission-connected to the front side door 630 and is used to drive the front side door 630 to rotate to open or close the discharge port.

[0063] Taking the driving direction of the forage harvester 10 as a reference direction, the discharge port is located in front of the collection bin 600, and the bottom plate 610 is also tilted downward in the direction from the back to the front. Therefore, when the forage in the collection bin 600 needs to be cleaned out, it is only necessary to use the bin door driving member 640 to drive the front side door 630 to open automatically. At this time, the forage in the collection bin 600 will slide out of the discharge port along the tilt direction of the bottom plate 610 under the action of its own gravity, realizing the automatic discharge and cleaning of the forage in the collection bin 600, which is conducive to further improving the efficiency of forage harvesting and making the use of the forage harvester 10 more convenient.

[0064] Please also read Figure 7In some embodiments, the forage harvester 10 further includes a counterweight 700. The counterweight 700 is slidably mounted on the fuselage 200. The counterweight 700 is linked with the lifting platform 300, and is configured to be able to descend when the lifting platform 300 ascends, and to ascend when the lifting platform 300 descends. The counterweight 700 and the lifting platform 300 may be linked via a transmission assembly or a mechanical structure, that is, under the driving force provided by the lifting drive mechanism 400, the counterweight 700 and the lifting platform 300 may be operated one after another.

[0065] In actual use, when the lifting platform 300 drives the harvesting mechanism 500 to rise to the high position of the fuselage 200, the counterweight 700 descends to the low position of the fuselage 200 to avoid the top-heavy situation during the forage harvesting process, and ensure the stability of the forage harvester 10 during the harvesting operation; similarly, when the lifting platform 300 drives the harvesting mechanism 500 to descend to the low position of the fuselage 200, the counterweight 700 will correspondingly rise to the high position of the fuselage 200, so that the whole forage harvester 10 is balanced in the vertical direction. Therefore, the setting of the counterweight 700 can improve the stability of the whole forage harvester 10 during the forage harvesting operation and the driving process, reduce the probability of rollover and the like, and have higher safety in use.

[0066] Furthermore, in some embodiments, the forage harvester 10 also includes a transmission shaft 810 , a first transmission wheel 820 , a second transmission wheel 830 , a third transmission wheel 840 , a first transmission bar 850 , a second transmission bar 860 , a fourth transmission wheel 870 , and a third transmission bar 880 .

[0067] The transmission shaft 810 is rotatably mounted on the top of the fuselage 200. Specifically, the transmission shaft 810 is transversely arranged on the fuselage 200. The first transmission wheel 820 is sleeved and transmission-connected to the output shaft of the lifting drive mechanism 400. The second transmission wheel 830 and the second transmission wheel 830 are sleeved on the transmission shaft 810 at intervals and transmission-connected to the transmission shaft 810. The first transmission bar 850 is tensioned on the first transmission wheel 820 and the second transmission wheel 830. The second transmission bar 860 is tensioned on the third transmission wheel 840, one end of which is connected to the counterweight 700, and the other end is connected to the bottom end of the fuselage 200.

[0068] The fourth transmission wheel 870 is rotatably mounted on the top of the fuselage 200. The third transmission bar 880 is tensioned on the fourth transmission wheel 870, one end of which is connected to the counterweight 700, and the other end of which is connected to the lifting platform 300.

[0069] Among them, the first transmission wheel 820, the second transmission wheel 830, and the third transmission wheel 840 can be pulleys or sprockets, and the first transmission bar 850 and the second transmission bar 860 can be transmission belts or transmission chains accordingly; the fourth transmission wheel 870 can be a pulley, a sprocket, a pulley, etc., and the third transmission bar 880 can also be a transmission belt, a transmission chain, a wire rope, etc.

[0070] During actual use, the rotating shaft of the lifting drive mechanism 400 is transmitted to the transmission shaft 810 through the first transmission wheel 820, the first transmission bar 850 and the second transmission wheel 830, so that the transmission shaft 810 rotates. The rotation of the transmission shaft 810 drives the third transmission wheel 840 to rotate. The rotation of the third transmission wheel 840 can drive the second transmission bar 860 to move up and down, thereby driving the counterweight 700 to rise or fall. The rise or fall of the counterweight 700 will pull the lifting platform 300 down or up through the third transmission bar 880. At this time, the counterweight 700 and the lifting platform 300 rise and fall respectively, realizing effective linkage between the counterweight 700 and the lifting platform 300.

[0071] Specifically, in order to ensure the smooth lifting and lowering of the counterweight 700 and the lifting platform 300, the second transmission bar 860 and the third transmission wheel 840 are both two groups, respectively located on the left and right sides of the first transmission bar 850; the third transmission bar 880 and the fourth transmission wheel 870 are also two groups, respectively located on the left and right sides of the first transmission bar 850.

[0072] In some embodiments, a plurality of roller assemblies 900 are provided at the bottom of the fuselage 200. The roller assembly 900 includes a telescopic frame 910 and a moving wheel 920 mounted on the telescopic frame 910. One end of the telescopic frame 910 away from the moving wheel 920 is fixed to the bottom of the fuselage 200. The telescopic frame 910 is configured to drive the moving wheel 920 to telescope along the lifting direction of the lifting platform 300.

[0073] The telescopic frame 910 may be a threaded adjustment structure formed by a screw and a nut (for example), or may be a cylinder telescopic structure, or may be other telescopic structures that can drive the moving wheel 920 to rise or fall.

[0074] After a long period of use, the walking mechanism 100 will inevitably have some problems of one kind or another, and the walking mechanism 100 needs to be maintained, repaired, or replaced. At this time, the telescopic frame 910 needs to be extended until the moving wheel 920 touches the ground and props up the fuselage 200. After that, the walking mechanism 100 can be detached from the fuselage 200 and moved out from under the fuselage 200 to perform maintenance or repair and replacement of the walking mechanism 100. Therefore, the entire disassembly and assembly process of the walking mechanism 100 does not require the staff to use other tools or equipment to lift or lay down the fuselage 200, and the maintenance cost is low and the maintenance convenience is high. When the walking mechanism 100 needs to be installed back, it only needs to be moved to the bottom of the fuselage 200 and connected to the walking mechanism 100.

[0075] During normal use of the forage harvester 10 , the telescopic frame 910 is shortened until the moving wheels 920 leave the ground, so that the moving wheels 920 are retracted. At this time, the travel of the forage harvester 10 completely depends on the travel mechanism 100 .

[0076] Therefore, the provision of the roller assembly 900 makes the maintenance of the forage harvester 10 more convenient, and further improves the ease of use of the forage harvester 10 .

[0077] Please refer again Figure 3 In some embodiments, the fuselage 200 includes a base 210 and a telescopic gantry 220. The walking mechanism 100 is installed at the bottom of the base 210. The lifting platform 300 is installed on the telescopic gantry 220. The telescopic gantry 220 is configured to drive the lifting platform 300 to rise or fall.

[0078] During actual use, according to the number of layers and height requirements of the multi-layer planting rack, the telescopic characteristics of the telescopic gantry itself and the characteristics of the lifting platform 300 relative to the telescopic gantry 220 can be utilized, so that the lifting platform 300 can drive the harvesting mechanism 500 to perform a first-stage, second-stage, or even multi-stage elevation. Without increasing the overall height of the forage harvester 10, the operating height of the forage harvester 10 is increased, thereby improving the applicability of the forage harvester 10.

[0079] Furthermore, in some embodiments, a foldable material collecting net bag 1001 is installed below the lifting platform 300. One end of the material collecting net bag 1001 opens toward one end of the harvesting platform 510 provided with a material guiding area 512, and is used to receive the forage grass sliding out of the material guiding area 512. The other end of the material collecting net bag 1001 is connected to the feed inlet of the material collecting bin 600.

[0080] In this way, the setting of the collecting net bag 1001 means that even if the lifting platform 300 drives the harvesting mechanism 500 to rise to the highest position of the fuselage 200, during the forage harvesting operation, the forage pushed by the pushing plate 533 from the material guide area 512 can directly enter the collecting net bag 1001, and enter the collecting bin 600 through the collecting net bag 1001, so as to collect the forage. Therefore, the setting of the collecting net bag 1001 can prevent the forage from falling from the harvesting platform 510 into the collecting bin 600 due to the harvesting platform 510 being too high, and thus the forage is further reduced. Waste of forage during the forage harvesting operation.

[0081] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0082] The above embodiments only express several implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A forage harvester, characterized in that: include: Walking mechanism; A fuselage, mounted on the walking mechanism; A lifting platform is slidably mounted on the fuselage; A lifting drive mechanism, which is in driving connection with the lifting platform and is used to drive the lifting platform to rise or fall; A harvesting mechanism, comprising a harvesting platform, a rotating drive member, and a harvesting and conveying structure; one end of the harvesting platform is rotatably mounted on the lifting platform; the harvesting and conveying structure is mounted on the harvesting platform; the rotating drive member is transmission-connected to the harvesting platform, and is used to drive the harvesting platform to rotate transversely around a connecting shaft between the harvesting platform and the lifting platform, so as to switch the working state of the harvesting mechanism to a harvesting state in which the harvesting platform is opened outward to the side of the fuselage and to an unharvested state in which the harvesting platform is retracted inward to the front of the fuselage; A material receiving bin is installed on the machine body and is located below the lifting platform; Among them, the harvesting and conveying structure is constructed to be able to harvest the grass on the multi-layer planting racks in the smart forage workshop in the harvesting state and convey the harvested grass to the collecting bin.

2. The forage harvester according to claim 1, characterized in that: The harvesting platform has a harvesting area at one end away from the body, and a material guiding area at one end close to the body; the harvesting area is provided with a plurality of grass supporting grooves spaced apart along the longitudinal direction of the harvesting platform; when the harvesting mechanism is in the harvesting state, each of the grass supporting grooves is located at the front edge of the harvesting platform in the walking direction of the walking mechanism; The harvesting and conveying structure includes a bracket, a cutting knife, a pushing plate, and a harvesting driving member; the bracket is installed on the harvesting platform; the cutting knife and the pushing plate are both installed on the bracket; The harvesting drive is respectively connected to the cutting knife and the pushing plate, and is used to drive the cutting knife and the pushing plate to rotate around the bracket on the harvesting platform, so that the cutting knife cuts the grass in the grass supporting groove, and the pushing plate pushes the cut grass into the collecting bin through the material guiding area.

3. The forage harvester according to claim 2, characterized in that: The harvesting area is a double-layer structure with a knife passing space; the grass supporting groove is connected to the knife passing space; the harvesting drive member is used to drive the cutting knife to enter the knife passing space and then cross the grass supporting groove, and is also used to drive the push plate to pass above the harvesting area; and / or The cutting knives and the pushing plates are arranged one by one in a plurality; the plurality of cutting knives are arranged in sequence and at intervals along the rotation direction of the cutting knives; in the rotation direction of the cutting knives, the pushing plates are arranged at intervals behind the corresponding cutting knives.

4. The forage harvester according to claim 2, characterized in that: The material guide area is provided with a first material baffle plate; the first material baffle plate and the grass supporting groove are located on the same side of the harvesting platform; one end of the first material baffle plate extends to the edge of one end of the harvesting platform away from the harvesting area, and the other end extends to a position near the harvesting area; a second material baffle plate is also provided on the side of the bracket close to the grass supporting groove; one end of the second material baffle plate extends to the harvesting area, and the other end extends to the material guide area; and / or A third material baffle plate is provided at one end of the harvesting area away from the material guiding area; the third material baffle plate is arranged perpendicularly or crosswise to the spacing direction of the plurality of grass supporting grooves.

5. The forage harvester according to claim 2, characterized in that: The harvesting and conveying structure also includes two chain transmission assemblies; the chain transmission assemblies include a first sprocket, a second sprocket and a chain; the chain is tensioned between the first sprocket and the second sprocket; the two first sprockets are spaced apart at one end of the bracket along a direction perpendicular to the harvesting platform, and are both transmission-connected to the output shaft of the harvesting drive member; the two second sprockets are spaced apart and coaxially arranged along a direction perpendicular to the harvesting platform, and are both rotatably mounted on the other end of the bracket; one end of the cutting knife is respectively connected to the two chains; one end of the pushing plate is respectively connected to the two chains.

6. The forage harvester according to claim 1, characterized in that: There are two harvesting mechanisms; the two harvesting platforms are rotatably installed on the left and right ends of the lifting platform respectively; when the harvesting mechanism is in a harvesting state, one harvesting platform is opened outward to the side of the fuselage, or the two harvesting platforms are opened to the left and right sides of the fuselage respectively; when the harvesting mechanism is in a non-harvesting state, the two harvesting platforms are both located in front of the fuselage and are spaced apart along the left and right directions of the fuselage.

7. The forage harvester according to claim 1, characterized in that: The material collecting bin includes a bottom plate, side plates arranged along the circumference of the bottom plate and connected to the bottom plate, a front side door and a bin door driving member; the bottom plate and the side plates are arranged to form a hollow structure with an opening at the top; the bottom plate is arranged to be inclined downward along the direction from the rear to the front of the fuselage relative to the harvesting platform; a discharge port is formed on the side of the side plate away from the fuselage; one end of the front side door is rotatably connected to the edge of the discharge port; the bin door driving member is transmission-connected to the front side door, and is used to drive the front side door to rotate so as to open or close the discharge port.

8. The forage harvester according to claim 1, characterized in that: It also includes a counterweight; the counterweight is slidably mounted on the fuselage; the counterweight is linked to the lifting platform and is constructed to be able to descend when the lifting platform rises, and to rise when the lifting platform descends.

9. The forage harvester according to claim 8, characterized in that: It also includes a transmission shaft, a first transmission wheel, a second transmission wheel, a third transmission wheel, a first transmission bar, a second transmission bar, a fourth transmission wheel and a third transmission bar; The transmission shaft is rotatably mounted on the top of the fuselage; the first transmission wheel is sleeved on and transmission-connected to the output shaft of the lifting drive mechanism; the second transmission wheel and the second transmission wheel are sleeved on the transmission shaft at intervals and transmission-connected to the transmission shaft; the first transmission bar is tensioned on the first transmission wheel and the second transmission wheel; the second transmission bar is tensioned on the third transmission wheel, one end of which is connected to the counterweight, and the other end is connected to the bottom end of the fuselage; The fourth transmission wheel is rotatably mounted on the top of the fuselage; the third transmission bar is tensioned on the fourth transmission wheel, one end of the third transmission bar is connected to the counterweight, and the other end is connected to the lifting platform.

10. The forage harvester according to claim 1, characterized in that: A plurality of roller assemblies are arranged at the bottom of the fuselage; the roller assembly comprises a telescopic frame and a moving wheel mounted on the telescopic frame; one end of the telescopic frame away from the moving wheel is fixed to the bottom of the fuselage; the telescopic frame is constructed to be telescopic along the lifting direction of the lifting platform.

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