Summary of the invention
The object of this invention is to provide the adjustable corn combine of a kind of line-spacing and the ceding of Taiwan thereof, comprise ceding of Taiwan body, described ceding of Taiwan body middle part sets a plurality of transmission cases in a row, and described each transmission case is fixedly connected with a harvesting frame, between two adjacent transmission cases, by shaft coupling, is in transmission connection step by step.By the shaft coupling of assembling different model, realize the free adjustment of results line-spacing.
An object of the present invention is to be realized by following technical proposals: the corn combine harvester header that a kind of line-spacing is adjustable, comprise ceding of Taiwan body, described ceding of Taiwan body middle part sets a plurality of transmission cases in a row, described each transmission case is fixedly connected with a harvesting frame, between two adjacent transmission cases, by shaft coupling, be in transmission connection step by step, wherein, the power transmission shaft of upper level transmission case is provided with drive sprocket, and the power transmission shaft of next stage transmission case is provided with driven sprocket; Described shaft coupling comprises a hollow axis body, and the two ends of described hollow axis body are provided with drive sprocket; The drive sprocket of described upper level transmission case is connected with the drive sprocket power of described shaft coupling one end by chain, and the driven sprocket of described next stage transmission case is connected with the drive sprocket power of the described shaft coupling other end by chain.
Another object of the present invention is realized by following technical proposals: the corn combine that a kind of line-spacing is adjustable, comprises the above-mentioned ceding of Taiwan.
The present invention compared with prior art tool has the following advantages:
The present invention, by the adjustable corn combine harvester header of line-spacing, realizes the free adjustment of results line-spacing.Do not need to change the original structure of corn combine, without increasing extra driving mechanism, energy consumption is little.
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Embodiment
Embodiment mono-:
Referring to Fig. 1, Fig. 2 (Fig. 2 is vertical view), the corn combine harvester header that a kind of line-spacing is adjustable, comprise ceding of Taiwan body 1, described ceding of Taiwan body middle part sets a plurality of transmission cases 2 in a row, described each transmission case is fixedly connected with a harvesting frame 3, is in transmission connection step by step, wherein between two adjacent transmission cases by shaft coupling, the power transmission shaft of upper level transmission case 5 is provided with drive sprocket 6, and the power transmission shaft of next stage transmission case 7 is provided with driven sprocket 8; Described shaft coupling comprises a hollow axis body 9, and the two ends of described hollow axis body are provided with drive sprocket 10,11; The drive sprocket 6 of described upper level transmission case 5 is connected with drive sprocket 10 power of described shaft coupling one end by chain, and the driven sprocket 8 of described next stage transmission case 7 is connected with drive sprocket 11 power of the described shaft coupling other end by chain.
Referring to Fig. 2, in the present embodiment, described ceding of Taiwan body is provided with transmission case 2, harvesting frame 3, and described each transmission case and a harvesting frame are bolted to connection; Bo He mechanism 12, stem pulling roller mechanism 13 are set on harvesting frame, and the interior of said mechanism and annexation can be understood with reference to the ceding of Taiwan of disclosed maize harvesting machine in Chinese patent CN201690790U, are not described in detail herein.
Corn combine is when carrying out operation, and it is capable that corn planting is aimed at harvesting frame center 14, and the distance between two adjacent harvesting frame centers is results line-spacing.Difference due to corn line-spacing when planting, just needs corn combine can adjust corresponding line-spacing when operation, unrestricted while realizing trans-regional operation.In prior art, between two adjacent transmission cases, directly by chain, be in transmission connection step by step, results line-spacing is fixed.
Referring to Fig. 1, Fig. 2, in the present embodiment, between two adjacent transmission cases, by shaft coupling, be in transmission connection step by step, the transmission case of contiguous ceding of Taiwan body both sides is transmission case at the highest level, and the driven sprocket 15 of transmission case at the highest level is connected with the drive sprocket 16 on corn combine main shaft by chain.The power transmission shaft two ends of each transmission case are respectively equipped with drive sprocket, driven sprocket, and drive sprocket is arranged on a side of contiguous its next stage transmission case, and driven sprocket is arranged on a side of contiguous its upper level transmission case.Wherein, the power transmission shaft of upper level transmission case 5 is provided with drive sprocket 6, and the power transmission shaft of next stage transmission case 7 is provided with driven sprocket 8; Described shaft coupling comprises a hollow axis body 9, and the two ends of described hollow axis body are provided with drive sprocket 10,11; The drive sprocket 6 of described upper level transmission case 5 is connected with drive sprocket 10 power of described shaft coupling 4 one end by chain, and the driven sprocket 8 of described next stage transmission case 7 is connected with drive sprocket 11 power of described shaft coupling 4 other ends by chain.Chain described in the present embodiment is double strand chain (not shown).
In the present embodiment, shaft coupling adopts hollow axis body 9, makes the insertion shaft coupling that the power transmission shaft of two adjacent transmission cases can be appropriate inner, realizes the fine setting that reduces to gather in the crops line-spacing.
In the present embodiment, the length of described shaft coupling is 37~97 millimeters.The length of described shaft coupling can be selected at 37 millimeters between 97 millimeters, and the adjustable range of institute's corresponding row distance is 550~650 millimeters.The specification of at present the most frequently used shaft coupling has 37 millimeters, 67 millimeters, 97 millimeters.By that analogy, the shaft coupling that increases other specifications can further expand the adjustable range of line-spacing, but experiment showed, that when results line-spacing surpasses 700 millimeters, the weight causing due to shaft coupling increases, and must use reinforced chain drive, not recommendation.
Solving the adjustable problem while of line-spacing, owing to being subject to the width restriction of corn combine front tread and field-returning machine, occurring that front-wheel overwhelms the hidden danger that straw cannot be gone back field or field-returning machine leaks row.In Fig. 2, use the shaft coupling of a certain specification to regulate after line-spacing, front-wheel center 17 is far away apart from harvesting frame center 14, there will not be the situation that overwhelms straw; In Fig. 3, use the shaft coupling of another specification to regulate after line-spacing, the front-wheel center 17 of a side and a harvesting frame are centered close on same straight line, just exist tire to overwhelm the situation of straw.For solving this kind of pressure market condition, need to before overwhelming straw, tire cut off also field to straw.
Referring to Fig. 4, Fig. 5, for solving the row problem of pressing, further, described ceding of Taiwan body bottom arranges stubble-clearing device, described stubble-clearing device is provided with two mounting bracket plates 18, described two mounting bracket plates are provided with a cutting knife rotating shaft 19, and a plurality of tool rests 20 are equidistantly set in described cutting knife rotating shaft, on described tool rest, along rotation round, a plurality of blades 21 are equidistantly set.
Referring to Fig. 4 to Fig. 6, in the present embodiment, described two mounting bracket plates 18 are mounted by means of bolts on described ceding of Taiwan body 1, and described cutting knife rotating shaft 19 is rotated and installed by bearing and described two mounting bracket plates.Described stubble-clearing device is choosing dress parts, and stubble-clearing device is only just installed when line-spacing adjusting causes pressing market condition to occur.Owing to adopting shaft coupling to regulate the mode of results line-spacing, press market condition only to there will be in ceding of Taiwan body one or both sides, so only need stubble-clearing device be installed in the one or both sides of ceding of Taiwan body.The intensity of the strength ratio harvesting frame of ceding of Taiwan body is high, be arranged on harvesting frame on compare, it is more reasonable that stubble-clearing device is arranged on ceding of Taiwan body.
Referring to Fig. 5, in the present embodiment, the core of stubble-clearing device is cutting blade assembly 4, and it comprises cutting knife rotating shaft 19, tool rest 20, blade 21.Cutting knife rotating shaft is splined shaft, and four tool rests are equidistantly fixed in rotating shaft, and three blades are bolted on tool rest.Each blade is provided with four installing holes, is respectively used to install four screws, and each blade fixedly mounts by four screws and four tool rests.Tool rest can be strengthened the rigidity of blade.Mounting bracket plate is through strength check, and cutting knife rotating shaft is checked through strength check and rigidity, and the blade of blade adopts the alloy material that intensity is high, wearability is good.
Referring to Fig. 4, Fig. 6, in the present embodiment, further, described ceding of Taiwan body rear portion arranges knife drive mechanism, described knife drive mechanism comprises driving pulley 22, driven pulley 23, V-shape belt 24, described driving pulley is arranged on described ceding of Taiwan body 1, and described driven pulley is arranged in described cutting knife rotating shaft 19.Driving pulley 22 also can be arranged on the main shaft of corn combine.
Referring to Fig. 7, in the present embodiment, cutting blade assembly 4 is oppositely High Rotation Speed (with the direction of rotation of front-wheel) mode operation under the driving of knife drive mechanism, can fully the straw on ground be picked up and be pulverized like this.
Referring to Fig. 4, Fig. 6, in the present embodiment, further, described ceding of Taiwan body rear portion arranges belt tensioning mechanism, and described belt tensioning mechanism comprises tensioning support 25, tensioning pulley 26.Tensioning support is mounted by means of bolts on described ceding of Taiwan body 1, and tensioning support is provided with horizontal concrete chute 27, and tension band wheel seat can slide and fix in place and go up along horizontal concrete chute.Strainer also can adopt other strainer of the prior art.Install the service life that belt tensioning mechanism can extend described V-shape belt additional, reduce the number of times of changing V-shape belt.
Referring to Fig. 7, in this enforcement, described stubble-clearing device also comprises an auxiliary roller 28 of cutting, and describedly auxiliaryly cuts roller and described cutting knife rotating shaft 19 be arranged in parallel, and the described auxiliary roller of cutting is rotatably installed on described two mounting bracket plates 18.Described auxiliary roller one end fixedly driven sprocket 29 and the driving gear 30 cut, fixing driven gear 31 in cutting knife rotating shaft, described driving gear and the engagement of described driven gear, described driven sprocket 29 is connected with the drive sprocket 16 on described corn combine main shaft by chain.The described auxiliary roller forward High Rotation Speed of cutting, with the switched in opposite of cutting blade assembly.Described auxiliary cutting arranges many fins parallel with described cutting knife shaft axis on roller.The auxiliary roller of cutting coordinates straw is formed to certain shearing force with cutting blade assembly, can suitably reduce the rotating speed of cutting blade assembly, improves the chopping effect of straw.
Embodiment bis-:
The corn combine that line-spacing is adjustable, comprises the ceding of Taiwan described in embodiment mono-.The adjustable corn combine of line-spacing of the present embodiment is that the ceding of Taiwan of corn combine of the prior art is improved, and part same as the prior art, is not described in detail.The technology contents of the ceding of Taiwan described in the present embodiment, please refer to the disclosed content of embodiment mono-and understands.
The content of the present embodiment is only preferably embodiment of the present invention; but protection scope of the present invention is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.