Agricultural harvester with cutting head convenient to replace

Abstract

The utility model discloses an agricultural harvester with a cutting head convenient to replace, which relates to the technical field of agricultural machinery and comprises two sleeves rotationally assembled on a connecting arm of the harvester. A harvesting head; the clamping mechanism is detachably assembled between the two sleeves, the harvesting head is placed between the two sleeves, it is guaranteed that the side ends of the two movable rods are both aligned with the sleeves, then a rotating shaft is rotated to enable a gear shaft to rotate, two rack plates move away from each other, the two movable rods move in a straight cylinder, and the harvesting head is fixed to the straight cylinder. The side ends of the two movable rods are inserted into the sleeves, then the push plate is pushed upwards, the two insertion rods on the push plate are inserted into the insertion holes in the sleeve pad, then the fastening rod is rotated, the fastening rod extrudes and fixes the push plate, and therefore the position of the push plate is fixed, and through the structural design, assembly and disassembly of the harvesting head can be conveniently and rapidly completed; and a dismounting tool is not needed.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery, and more specifically, to an agricultural harvester facilitating replacement of a cutting head. Background Art

[0002] An agricultural harvester is a machine that integrates the harvesting of crops, capable of completing harvesting, threshing at one time, concentrating the grains into a storage bin, and then transporting the grains to a transport vehicle through a conveyor belt. The main working parts of the agricultural harvester include a cutter, a conveyor belt, a threshing device, etc. When the harvester starts working, the cutter cuts the crops from the roots, and the conveyor belt transports the cut crops into the machine. Then, through the processing of the threshing device, the grains are separated from the straws. In this process, the machine also cleans and dries the grains to ensure the purity and quality of the grains.

[0003] When installing the harvesting head of the existing agricultural harvester, it is generally installed by bolts. However, a large number of bolts are required, so when replacing the harvesting head, a lot of time is wasted, reducing the working efficiency. Based on the above problems, we provide an agricultural harvester facilitating replacement of a cutting head.

[0004] The above information disclosed in this background art is only used to increase the understanding of the background art of the utility model. Therefore, it may include prior art that is not known to those of ordinary skill in the art. Summary of the Utility Model

[0005] In order to solve the problems raised in the above background art, the utility model provides an agricultural harvester facilitating replacement of a cutting head.

[0006] The agricultural harvester facilitating replacement of a cutting head provided by the utility model adopts the following technical solutions:

[0007] An agricultural harvester facilitating replacement of a cutting head includes two sleeves rotatably assembled on the connecting arms of the harvester; a harvesting head; and is detachably assembled between the two sleeves through a clamping mechanism.

[0008] Preferably, the clamping mechanism includes a straight cylinder fixedly assembled inside the harvesting head. A tooth shaft is rotatably connected to the center inside the straight cylinder. Moving rods are slidably inserted at both ends of the straight cylinder. Rack plates are assembled at one ends of the two moving rods close to each other, and the two rack plates are meshed with the tooth shaft. A rotating shaft is rotatably connected to the outer side of the straight cylinder, and the top end of the rotating shaft is fixedly connected to the bottom end of the tooth shaft.

[0009] Preferably, a plurality of limiting grooves are formed in the inner wall of the sleeve, and a plurality of limiting strips are fixedly connected to the side ends of the moving rod, and the limiting strips correspond to the limiting grooves in position.

[0010] Preferably, the limiting bar is slidably connected to the inner wall of the straight cylinder.

[0011] Preferably, a sleeve pad is fixedly connected to the position of the outer side surface of the straight cylinder relative to the rotating shaft. A push plate is slidably connected to the middle of the rotating shaft. A pair of insertion rods are fixedly connected to the top of the push plate. A plurality of insertion holes are formed at the bottom of the sleeve pad, and the insertion rods can be inserted into the insertion holes.

[0012] Preferably, a fastening rod is threadedly connected to the outer side surface of the rotating shaft, and the fastening rod can be in pressing contact with the side surface of the push plate.

[0013] Preferably, a sliding hole is formed in the outer side surface of the rotating shaft, and the push plate is slidably connected in the sliding hole.

[0014] Preferably, a blocking bar is fixedly connected to the position of the side surface of the push plate relative to the sliding hole for limiting the position of the push plate in the sliding hole.

[0015] In summary, the present utility model includes the following beneficial technical effects:

[0016] By placing the harvesting head between the two sleeves and ensuring that the side ends of the two moving rods are aligned with the sleeves, then rotating the rotating shaft to make the toothed shaft rotate, whereby the two rack plates move away from each other, so that the two moving rods move in the straight cylinder, so that the side ends of the two moving rods are inserted into the sleeves. Then, push up the push plate so that the two insertion rods on the push plate are inserted into the insertion holes on the sleeve pad. Then, rotate the fastening rod so that the fastening rod presses and fixes the push plate. Thus, the position of the push plate is fixed. Through this structural design, the assembly and disassembly of the harvesting head can be completed conveniently and quickly, and no disassembly tool is required.

[0017] The above summary is only for the purpose of the specification and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will be readily apparent by reference to the drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of an agricultural harvester for facilitating the replacement of a cutting head in Embodiment 1 of the present utility model;

[0019] Figure 2 is a schematic structural diagram of the other side of an agricultural harvester for facilitating the replacement of a cutting head in Embodiment 1 of the present utility model;

[0020] Figure 3 is Figure 2 an enlarged structural diagram of part A in

[0021] Figure 4 is a schematic structural diagram of the sleeve and the moving rod in Embodiment 1 of the present utility model;

[0022] Figure 5 It is a schematic structural diagram of the moving rod and the gear shaft in the first embodiment of the present utility model;

[0023] Figure 6 It is a schematic structural diagram of the engaging mechanism in the second embodiment of the present utility model.

[0024] Explanation of reference numerals: 1, sleeve; 2, harvesting head; 3, engaging mechanism; 300, straight cylinder; 301, gear shaft; 302, moving rod; 303, rack plate; 304, rotating shaft; 305, limiting groove; 306, limiting strip; 307, sleeve pad; 308, push plate; 309, inserting rod; 310, inserting hole; 311, fastening rod; 312, sliding hole; 4, turntable; 5, inserting screw. Detailed implementation manners

[0025] The following further elaborates on the present utility model in conjunction with the attached Figures 1 to 6 drawings.

[0026] It should be noted that the drawings are schematic and not drawn to scale. For the sake of clarity and convenience in the figures, the relative sizes and proportions of the parts shown in the figures are exaggerated or reduced in size for illustration, and any dimensions are only exemplary and not limiting. In addition, the same reference numerals are used for the same structures, elements or fittings that appear in more than two figures to reflect similar features.

[0027] Embodiment 1

[0028] The embodiment of the present utility model discloses an agricultural harvester that is convenient for replacing the cutting head. Referring to Figures 1 to 5 , an agricultural harvester that is convenient for replacing the cutting head includes two sleeves 1 rotatably assembled on the connecting arms of the harvester; a harvesting head 2; and is detachably assembled between the two sleeves 1 through an engaging mechanism 3.

[0029] Specifically, the engaging mechanism 3 includes a straight cylinder 300 fixedly assembled inside the harvesting head 2. A gear shaft 301 is rotatably connected to the center of the inner part of the straight cylinder 300. Slide rods 302 are slidably inserted at both ends of the straight cylinder 300. Rack plates 303 are assembled at the ends of the two slide rods 302 close to each other, and the two rack plates 303 are meshed with the gear shaft 301. A rotating shaft 304 is rotatably connected to the outer side of the straight cylinder 300, and the top end of the rotating shaft 304 is fixedly connected to the bottom end of the gear shaft 301; A plurality of limiting grooves 305 are formed in the inner wall of the sleeve 1. A plurality of limiting bars 306 are fixedly connected to the side end of the slide rod 302, and the limiting bars 306 correspond to the positions of the limiting grooves 305; The limiting bars 306 are slidably connected to the inner wall of the straight cylinder 300; A gasket 307 is fixedly connected to the outer side of the straight cylinder 300 at a position relative to the rotating shaft 304. A push plate 308 is slidably connected to the middle of the rotating shaft 304. A pair of insertion rods 309 are fixedly connected to the top of the push plate 308. A plurality of insertion holes 310 are formed in the bottom of the gasket 307, and the insertion rods 309 can be inserted into the insertion holes 310; A fastening rod 311 is threadedly connected to the outer side of the rotating shaft 304, and the fastening rod 311 can press against the side of the push plate 308; A sliding hole 312 is formed in the outer side of the rotating shaft 304, and the push plate 308 is slidably connected to the sliding hole 312; A blocking bar is fixedly connected to the side of the push plate 308 at a position relative to the sliding hole 312 for restricting the position of the push plate 308 in the sliding hole 312.

[0030] By placing the harvesting head 2 between the two sleeves 1 and ensuring that the side ends of the two slide rods 302 are aligned with the sleeves 1, then rotating the rotating shaft 304 to make the gear shaft 301 rotate, whereby the two rack plates 303 move away from each other, so that the two slide rods 302 move in the straight cylinder 300, making the side ends of the two slide rods 302 inserted into the sleeves 1. Then, push up the push plate 308 so that the two insertion rods 309 on the push plate 308 are inserted into the insertion holes 310 on the gasket 307. Then, rotate the fastening rod 311 to make the fastening rod 311 press and fix the push plate 308, thereby completing the fixation of the position of the push plate 308. Similarly, by rotating the rotating shaft 304 in the reverse direction to separate the two slide rods 302 from the sleeves 1, disassembly can be completed. Through this structural design, the assembly and disassembly of the harvesting head 2 can be completed conveniently and quickly, and no disassembly tool is required.

[0031] Embodiment 2

[0032] This embodiment is a further optimization based on the above embodiment. The same parts as the foregoing technical solutions will not be described herein again, such as Figure 6As shown in the figure, in order to better implement the present utility model, the following setting method is specifically adopted: In this embodiment, a turntable 4 is fixedly connected to the bottom of the rotating shaft 304. A plug-in screw rod 5 is slidably connected to the middle of the turntable 4. Thread teeth are provided at a position near the bottom end of the middle of the plug-in screw rod 5 and can be threadedly connected to the middle of the turntable 4. By rotating the turntable 4, the rotating shaft 304 rotates to work. When the position of the rotating shaft 304 is adjusted, the plug-in screw rod 5 is pushed so that the top end of the plug-in screw rod 5 is inserted into the jack 310, and then the plug-in screw rod 5 is rotated so that the plug-in screw rod 5 is threadedly connected to the turntable 4, thereby limiting the upward position of the plug-in screw rod 5 and preventing the top end of the plug-in screw rod 5 from separating from the jack 310. Through this structural design, the fixation of the rotating shaft 304 after rotation is completed.

[0033] The standard parts used in the present utility model can all be purchased from the market. The special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art. In addition, the circuit connection adopts the conventional connection method in the prior art, which will not be elaborated here.

[0034] In the description of the present utility model, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. The meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0035] In the present utility model, unless otherwise clearly specified and limited, the terms "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0036] In the present utility model, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the horizontal height of the first feature is less than that of the second feature.

[0037] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not have to be directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0038] In the attached drawings of the disclosed embodiments of the present utility model, only the structures related to the disclosed embodiments are involved, and other structures can refer to the general design. Without conflict, the same embodiment and different embodiments of the present invention can be combined with each other.

[0039] Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An agricultural harvester with a convenient replacement cutting head, characterized in that: include: Two sleeves (1) rotatably mounted on the connecting arms of the harvester; A harvesting head (2) is detachably assembled between the two sleeves (1) through a snap-fit ​​mechanism (3); The engaging mechanism (3) comprises a straight cylinder (300) fixedly mounted inside the harvesting head (2); a gear shaft (301) is rotatably connected to the center of the straight cylinder (300); movable rods (302) are slidably inserted at both ends of the straight cylinder (300); rack plates (303) are mounted on the ends of the two movable rods (302) that are close to each other, and the two rack plates (303) are meshingly connected to the gear shaft (301); a rotating shaft (304) is rotatably connected to the outer side surface of the straight cylinder (300), and the top end of the rotating shaft (304) is fixedly connected to the bottom end of the gear shaft (301); A sleeve (307) is fixedly connected to the outer side surface of the straight cylinder (300) relative to the rotating shaft (304), a push plate (308) is slidably connected to the middle of the rotating shaft (304), a pair of insertion rods (309) are fixedly connected to the top of the push plate (308), and a plurality of insertion holes (310) are provided at the bottom of the sleeve (307), and the insertion rods (309) can be inserted into the insertion holes (310).

2. The agricultural harvester with easy replacement of cutting head according to claim 1, characterized in that: The inner wall of the sleeve (1) is provided with a plurality of limiting grooves (305), and the side end of the movable rod (302) is fixedly connected with a plurality of limiting strips (306), and the positions of the limiting strips (306) and the limiting grooves (305) correspond to each other.

3. The agricultural harvester with easy replacement of cutting head according to claim 2, characterized in that: The limiting strip (306) is slidably connected in the inner wall of the straight cylinder (300).

4. The agricultural harvester with easy replacement of cutting head according to claim 1, characterized in that: The outer side surface of the rotating shaft (304) is threadedly connected with a fastening rod (311), and the fastening rod (311) can be pressed and contacted with the side surface of the push plate (308).

5. The agricultural harvester with easy replacement of cutting head according to claim 4, characterized in that: A sliding hole (312) is provided on the outer side surface of the rotating shaft (304), and the push plate (308) is slidably connected in the sliding hole (312).

6. The agricultural harvester with easy replacement of cutting head according to claim 5, characterized in that: A stop bar is fixedly connected to the side surface of the push plate (308) relative to the slide hole (312) to limit the position of the push plate (308) in the slide hole (312).

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