Header structure for corn harvester

Abstract

The utility model relates to the technical field of agricultural machinery, and discloses a header structure for a corn harvester, which comprises a header provided with a reel chain; the limiting frame is arranged on the header and used for limiting the position of the reel chain; the mounting frame is arranged at the bottom of the header; according to the structural design, the compactness and efficiency of a power transmission path are fully utilized, middle tedious transmission parts are reduced, energy loss and potential fault points are reduced, and equipment operation is more stable and reliable. The forward and reverse rotation function is achieved, meanwhile, abrasion to mechanical parts is effectively reduced, and the service life of equipment is prolonged. Through the optimized structure and operation mode, the equipment can quickly and efficiently complete straw cleaning and smashing operation, and important guarantee is provided for efficient operation of agricultural machinery.

Description

TECHNICAL FIELD

[0001] The utility model relates to agricultural machinery technical field, concretely relates to a cutting platform structure for corn harvester. BACKGROUND

[0002] In the harvesting process of the corn harvester, it is easy to be wound by straw and corn leaf, and the related parts such as peeling roll and stem pulling roller are blocked, in order to be more safe, the whole machine peeling system and the harvesting system are reversed to remove weeds, so that the machine does not need to remove weeds directly by hand, thereby avoiding the occurrence of personal injury accidents, and the harvesting process is more safe, so the positive and negative packing is often set up.

[0003] But the existing reverse weeding device is always separated from the peeling machine and the cutting platform structure, and the operation is more cumbersome and not flexible. UTILITY MODEL CONTENT

[0004] In view of the defects of the prior art, the utility model provides a cutting platform structure for corn harvester, which aims at at least alleviating the above problems to some extent.

[0005] The above technical purpose of the utility model is realized by the following technical scheme:

[0006] A cutting platform structure for corn harvester, comprising:

[0007] A cutting platform, a hay chain is arranged on the cutting platform;

[0008] A limiting frame for limiting the position of the hay chain is arranged on the cutting platform;

[0009] A mounting bracket is arranged at the bottom of the cutting platform;

[0010] A forward and reverse box is arranged at the bottom of the cutting platform on one side of the mounting bracket;

[0011] A plurality of field knives are arranged in the mounting bracket;

[0012] A guide cone and a stem pulling roller are arranged on the cutting platform;

[0013] A transmission component is arranged between the forward and reverse box and the cutting platform, for transmitting the rotation of the hay chain, guide cone and stem pulling roller;

[0014] The transmission component can also drive the rotation of the field knife.

[0015] Preferably, the bottom of the cutting platform is connected with a vertical plate, the vertical plate is connected to the forward and reverse box through bolts, and one side of the vertical plate is connected with two rib plates connected with the cutting platform.

[0016] Preferably, the transmission component comprises two drive shafts rotatably connected to the forward-reverse box, the two drive shafts are respectively connected with mutually meshing gear a, the cutting platform is provided with a transmission box, the transmission box is provided with a transmission shaft a, the transmission box is rotatably connected with a sprocket wheel a, the dragger is arranged on the sprocket wheel a, the transmission shaft a and the sprocket wheel a are respectively connected with mutually meshing gear b, one of the drive shafts is provided with a sprocket wheel b, the transmission shaft a is provided with a sprocket wheel c, the sprocket wheel b and the sprocket wheel c are provided with a chain a, and the gear b is a bevel gear.

[0017] Preferably, the transmission component further comprises a knife shaft rotatably connected to the mounting frame, and the no-tillage blade is connected to the knife shaft, and the knife shaft and the other drive shaft are respectively connected with a sprocket wheel d, and the two sprocket wheels d are connected with a chain b.

[0018] Preferably, the transmission box is rotatably connected with a transmission shaft b, the straw pulling roller is connected to the transmission shaft b, the guide cone is connected to the straw pulling roller, the transmission shaft b and the transmission shaft a are respectively connected with mutually meshing gear c, and the gear c is a bevel gear.

[0019] Preferably, the forward-reverse box is provided with a bearing, and the drive shaft is connected with the inner ring of the bearing.

[0020] In summary, the utility model mainly has the following beneficial effects:

[0021] The cutting platform structure realizes compact structure, low failure rate and power saving through the multi-stage transmission mechanism and the optimized layout. The forward-reverse box as a core component realizes power output through gear a on the two drive shafts, gear a drives the other drive shaft to rotate synchronously through meshing, so that power transmission is stable and reliable. The sprocket wheel b on one of the drive shafts is connected with the sprocket wheel c on the transmission shaft through chain a, so that power is efficiently transmitted to the transmission shaft, gear b (bevel gear) on the transmission shaft is meshed with the other gear b in the transmission box, so that power is further transmitted to the sprocket wheel a on the transmission box, thereby driving the dragger to rotate. Through the quick switching of the rotation direction of the drive shaft, the dragger can flexibly realize forward and reverse operation, directly achieving the purpose of reversing and cleaning the straw, without complex intermediate operation.

[0022] Meanwhile, the forward-reverse box drives the knife shaft to rotate through the sprocket wheel d on the drive shaft, and then drives the no-tillage blade to work efficiently. The accurate matching design of the sprocket wheel and the gear enables the dragger and the no-tillage blade to realize synchronous forward and reverse rotation when the forward-reverse box switches direction. During the forward and reverse rotation of the no-tillage blade, not only the straw and corn leaves can be efficiently crushed, but also the entangled objects can be automatically cleaned, further improving the working efficiency of the equipment.

[0023] The structure design fully utilizes the compactness and efficiency of the power transmission path, reduces the intermediate cumbersome transmission components, reduces energy loss and potential failure points, and makes the equipment run more stable and reliable. While realizing the functions of forward and reverse rotation, the wear of mechanical parts is effectively reduced, and the service life of the equipment is prolonged. Through the optimized structure and operation mode, the equipment can quickly and efficiently complete the straw cleaning and crushing operation, providing an important guarantee for the efficient operation of agricultural machinery. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is the overall structure schematic diagram of the utility model;

[0025] Figure 2 is the cutting platform structure schematic diagram of the utility model;

[0026] Figure 3 is the transmission component structure schematic diagram of the utility model;

[0027] Figure 4 is the transmission box structure schematic diagram of the utility model;

[0028] Figure 5 is the forward and reverse rotation box structure schematic diagram of the utility model.

[0029] Reference signs:

[0030] 100, cutting platform; 101, harrow chain; 102, limiting frame; 103, mounting frame; 104, forward and reverse rotation box; 105, knife for returning to field; 106, guide cone; 107, stem pulling roller;

[0031] 200, vertical plate; 201, rib plate;

[0032] 300, drive shaft; 301, gear a; 302, transmission box; 303, transmission shaft a; 304, chain wheel a; 305, gear b; 306, chain wheel b; 307, chain wheel c; 308, chain a; 309, bearing;

[0033] 400, knife shaft; 401, chain wheel d; 402, chain b;

[0034] 500, transmission shaft b; 501, gear c. DETAILED DESCRIPTION

[0035] Clearly, the described embodiments are merely a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0036] Reference Figures 1-5 A cutting platform structure for a corn harvester, comprising:

[0037] A cutting platform 100, wherein a chain 101 is arranged on the cutting platform 100;

[0038] A limiting frame 102 arranged on the cutting platform 100 and used for limiting the position of the chain 101;

[0039] A mounting frame 103 arranged at the bottom of the cutting platform 100;

[0040] A forward-reverse box 104 arranged at the bottom of the cutting platform 100 and located at one side of the mounting frame 103;

[0041] A plurality of field knives 105 arranged in the mounting frame 103;

[0042] A guide cone 106 and a stem roller 107 arranged on the cutting platform 100;

[0043] A transmission component arranged between the forward-reverse box 104 and the cutting platform 100 and used for transmitting the rotation of the chain 101, the guide cone 106 and the stem roller 107;

[0044] The transmission component can also transmit the rotation of the field knives 105;

[0045] Further, the bottom of the cutting platform 100 is connected with a vertical plate 200, the vertical plate 200 is connected to the forward-reverse box 104 through bolts, and one side of the vertical plate 200 is connected with two rib plates 201 connected with the cutting platform 100;

[0046] By setting the vertical plate 200, the cutting platform 100 is set with the vertical plate 200 below, and two rib plates 201 are set on the side of the vertical plate 200 to make the vertical plate 200 more firm. The positive and negative boxes are fixed on the vertical plate 200 through fixing nuts, so that the connection between the cutting platform 100, the positive and negative boxes 104 and the rib plates 201 is more closely, and the stability and the anti-seismic performance of the whole device are effectively improved. The vertical plate 200 is a connecting support structure of the cutting platform 100 and the positive and negative boxes 104, which can withstand the vibration and impact force of the positive and negative boxes 104 during operation, thereby ensuring the stability and efficiency of power transmission. At the same time, the addition of the rib plates 201 further enhances the rigidity and carrying capacity of the vertical plate 200, avoiding the problems of deformation or looseness caused by long-term use. Through this structural design, not only the reliability of the equipment is improved, but also the failure rate is reduced, which provides protection for the efficient operation of the equipment.

[0047] As a further aspect of the present application, the transmission component includes two drive shafts 300 rotatably connected to the positive and negative boxes 104, and mutually meshing gears a301 are connected to the two drive shafts 300 respectively. A transmission box 302 is provided on the cutting platform 100, a transmission shaft a303 is arranged in the transmission box 302, a sprocket a304 is rotatably connected to the transmission box 302, the crop diverts 101 are arranged on the sprocket a304, mutually meshing gears b305 are connected to the transmission shaft a and the sprocket a304 respectively, one of the drive shafts 300 is provided with a sprocket b306, a sprocket c307 is arranged on the transmission shaft a, a chain a308 is arranged between the sprocket b306 and the sprocket c307, and the gear b305 is a bevel gear.

[0048] By arranging the drive shafts 300, one of the drive shafts 300 can be rotated in application, so as to drive the rotation of the gear a301 thereon. The gear a301 drives the synchronous rotation of the other drive shaft 300 through meshing. At the same time, the sprocket b306 on the drive shaft 300 transmits power to the sprocket c307 on the transmission shaft through the chain a308, so as to rotate the transmission shaft. After the gear b305 on the transmission shaft meshes with the gear b305 on the sprocket a304, power is further transmitted to the sprocket a304, and finally the crop diverts 101 are driven to rotate. When the rotation direction of the drive shaft 300 is switched, the rotation direction of the crop diverts 101 is also adjusted through the reverse transmission of the sprocket b306, the chain a308, the sprocket c307 and the gear b305, so as to realize flexible switching of the positive and negative directions. This transmission structure design not only ensures the stable and efficient operation of the crop diverts 101, but also effectively cleans the attachments on the crop diverts 101 through positive and negative rotation, avoids the running obstacles caused by the entanglement of straw and corn leaves, and improves the use efficiency and reliability of the equipment.

[0049] As a further of the utility model further, transmission part still include the knife shaft 400 that rotates to be connected on the mounting frame 103, still field knife piece 105 is connected on the knife shaft 400, the sprocket d401 is connected respectively on the knife shaft 400 and another drive shaft 300, and chain b402 is connected between two sprocket d401s;

[0050] Through set up the knife shaft 400, and with mounting frame 103 rotation connection, make still field knife piece 105 can be firmly installed on the knife shaft 400. The sprocket d401 on drive shaft 300 passes through chain b402 and transmits power to the sprocket d401 on the knife shaft 400, to drive the knife shaft 400 rotation. The rotation of the knife shaft 400 directly drives still field knife piece 105 operation, realizes the pulverization processing to straw and corn leaf. When the forward and reverse box 104 switches direction, the rotation direction of drive shaft 300 changes along with it, and through the reverse drive of sprocket d401 and chain b402, the rotation direction of still field knife piece 105 also has corresponding adjustment. Such design makes still field knife piece 105 when rotating in the positive and negative direction, can effectively remove the entanglement on the blade, maintains the cutting efficiency of blade. Meanwhile, the compact transmission structure, high power transmission efficiency, reduces energy loss, ensures that still field knife piece 105 can stably, efficiently work under various field work environment.

[0051] As a further of the utility model further, transmission box 302 rotates and is connected with transmission shaft b500, and the stem roller 107 is connected on the transmission shaft b500, and the guide cone 106 is connected on the stem roller 107, and the transmission shaft b500 and transmission shaft a303 are respectively connected with the gear c501 that meshes with each other, and the gear c501 is bevel gear;

[0052] The transmission shaft b500 is arranged and connected with the transmission box 302, so that the straw pulling roller 107 can be firmly installed on the transmission shaft b500, thereby driving the guide cone 106 to operate efficiently. The gear c501 on the transmission shaft a303 transmits power to the gear c501 on the transmission shaft b500 through meshing, so as to realize stable power transmission and direction switching. The bevel gear design of the gear c501 ensures efficient power transmission between different shafts, while reducing friction and energy loss. When the transmission shaft a303 rotates, the gear c501 on it drives the transmission shaft b500 to rotate synchronously through meshing with the gear c501 on the transmission shaft b500, further driving the straw pulling roller 107 and the guide cone 106 to rotate. Through this transmission structure design, when the rotation direction of the transmission shaft a303 is switched, the transmission shaft b500 changes the rotation direction accordingly, so that the straw pulling roller 107 and the guide cone 106 can realize forward and reverse rotation. During the forward and reverse switching process, the guide cone 106 can effectively remove the straw and corn leaves attached to the surface to prevent them from being entangled, thereby improving the cleaning effect and operation efficiency of the equipment. In addition, the gear and shaft cooperation design structure is compact, the power transmission is stable and reliable, the redundant transmission path and components are effectively reduced, the power utilization rate of the whole equipment is improved, and the failure rate is reduced. The precise cooperation of the straw pulling roller 107 and the guide cone 106 can continuously maintain efficient cleaning and peeling performance during operation, and provides reliable technical support for long-term stable operation of the machine.

[0053] As a further aspect of the present application, the positive and negative rotation box 104 is provided with a bearing 309, and the driving shaft 300 is connected with the inner ring of the bearing 309.

[0054] The bearing 309 is arranged on the positive and negative rotation box 104, and the driving shaft 300 is connected with the inner ring of the bearing 309, so that the driving shaft 300 can maintain stable support and efficient power transmission during rotation. The addition of the bearing 309 significantly reduces the friction resistance of the driving shaft 300, reduces energy loss during operation, and prolongs the service life of the equipment.

[0055] Working principle: the cutting table structure realizes the excellent effects of compact structure, low failure rate and power saving through the multi-stage transmission mechanism and optimized layout. The forward and reverse box 104 as the core component realizes power output through the gear a301 on the two drive shafts 300, the gear a301 drives the other drive shaft 300 to rotate synchronously through meshing, so that the power transmission is stable and reliable. The sprocket b306 on one of the drive shafts 300 is connected with the sprocket c307 on the transmission shaft through the chain a308, so as to efficiently transmit power to the transmission shaft, the gear b305 (bevel gear) on the transmission shaft meshes with the other gear b305 in the transmission box 302, so as to further transmit power to the sprocket a304 on the transmission box 302, thereby driving the swathing chain 101 to rotate. Through the quick switching of the rotation direction of the drive shaft 300, the swathing chain 101 can flexibly realize forward and reverse operation, directly achieving the purpose of reversing and cleaning the straw, without complex intermediate operation.

[0056] At the same time, the forward and reverse box 104 transmits power to the sprocket d401 on the knife shaft 400 through the chain b402 through the sprocket d401 on the drive shaft 300, drives the knife shaft 400 to rotate, and further drives the ridge tillage blade 105 to work efficiently. The precise matching design of the sprocket and the gear enables the swathing chain 101 and the ridge tillage blade 105 to realize synchronous forward and reverse rotation when the forward and reverse box 104 switches direction. The ridge tillage blade 105 can not only efficiently crush straw and corn leaves, but also automatically clean the entangled objects during forward and reverse rotation, further improving the working efficiency of the equipment.

[0057] This structure design fully utilizes the compactness and efficiency of the power transmission path, reduces the cumbersome transmission components in the middle, reduces energy loss and potential failure points, and makes the equipment run more stably and reliably. While realizing the forward and reverse rotation function, it also effectively reduces the wear of mechanical parts and prolongs the service life of the equipment. Through this optimized structure and operation mode, the equipment can quickly and efficiently complete the straw cleaning and crushing operation, providing an important guarantee for the efficient operation of agricultural machinery.

[0058] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A head structure for a corn harvester, characterized in that, The utility model relates to a rotary tillage machine, including: Header (100), be equipped with on the header (100) and plow chain (101); Be equipped with on the header (100) for limiting the position of and plow chain (101) limit frame (102); Be equipped with on the bottom of header (100) mounting bracket (103); Be equipped with on the bottom of header (100) in limit frame (103) one side positive and negative rotation box (104); Be equipped with in the plurality of still field blade (105) of mounting bracket (103); Be equipped with on the header (100) and lead cone (106) and pull stem roller (107); Be equipped with between positive and negative rotation box (104) and the transmission part of header (100), for transmission and plow chain (101), lead cone (106) and pull stem roller (107) rotation; The transmission part can also drive the still field blade (105) rotation.

2. A head structure for a corn harvester as set forth in claim 1, wherein, The bottom of header (100) is connected with vertical board (200), vertical board (200) is connected on positive and negative rotation box (104) through bolt, one side of vertical board (200) is connected with two muscle plate (201) with the connection of header (100).

3. A head structure for a corn harvester as set forth in claim 1, wherein, The transmission part includes two drive shafts (300) rotationally connected on positive and negative rotation box (104), two drive shafts (300) are connected with each other meshing gear a (301) respectively, header (100) is equipped with transmission box (302), transmission box (302) is equipped with transmission shaft a (303) in, transmission box (302) is rotationally connected with sprocket a (304) on, and plow chain (101) is equipped with on sprocket a (304), transmission shaft a is connected with each other meshing gear b (305) on sprocket a (304) respectively, wherein one drive shaft (300) is equipped with sprocket b (306), transmission shaft a is equipped with sprocket c (307) on, and sprocket b (306) and sprocket c (307) are equipped with chain a (308) between, gear b (305) is bevel gear.

4. A head structure for a corn harvester as set forth in claim 3, wherein, The transmission part also includes sword shaft (400) rotationally connected on mounting bracket (103), still field blade (105) is connected on sword shaft (400), sword shaft (400) is connected with chain wheel d (401) respectively on another drive shaft (300), and two chain wheels d (401) are connected with chain b (402) between.

5. A head structure for a corn harvester as set forth in claim 3, wherein, Transmission shaft b (500) is rotationally connected on transmission box (302), pull stem roller (107) is connected on transmission shaft b (500), lead cone (106) is connected on pull stem roller (107), transmission shaft b (500) is connected with each other meshing gear c (501) respectively on transmission shaft a (303), gear c (501) is bevel gear.

6. A head structure for a corn harvester as set forth in claim 3, wherein, Positive and negative rotation box (104) is equipped with bearing (309), drive shaft (300) is connected with the inner ring of bearing (309).

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