CN108184410A - Combine harvester - Google Patents

Abstract

The present invention provides a kind of combine harvester for the cleaning and upkeep operation that can easily and efficiently carry out bearing net.The combine harvester has thresing machine（4）, the thresing machine（4）With the entirety for gathering in straw is put into threshing chamber（31）And the threshing portion of threshing processing is carried out using the threshing cylinder for rotating freely driving（30）And the screening plant by freely swinging（42）To coming from above-mentioned threshing chamber（31）Threshing processed material carry out Screening Treatment screening unit（40）, wherein, have and support to form above-mentioned thresing machine in a manner of the opening and closing that can freely swing（4）Above-mentioned threshing chamber（31）Upper cross side wall portion Shu Zhi mechanisms（81）And the charging crane of above-mentioned upper cross side wall portion is supported in a manner of it can freely load and unload（80）.

Description

Combine harvester

The application is original application（The applying date：On July 30th, 2008, application number：200810131191.X denomination of invention：Connection Close harvester）And divisional application（The applying date：On July 30th, 2008, application number：201610025873.7 denomination of invention：It receives Cutting mill）Divisional application.

Technical field

The present invention relates to a kind of combine harvesters, and with thresing machine, which is equipped with the straw gathered in is entire It puts into threshing chamber and carries out the threshing portion of threshing processing and utilize freely to put using the threshing cylinder for rotating freely driving Dynamic screening plant carries out the threshing processed material from above-mentioned threshing chamber the screening unit of Screening Treatment.

Background technology

In above-mentioned combine harvester, as the harvester that can open threshing chamber, there is such as Japanese Unexamined Patent Publication 6- in the past No. 253657 bulletins（0010 section, Fig. 3,4）（Hereinafter referred to as " patent document 1 "）Recorded harvester.

In the combine harvester recorded in patent document 1, threshing can be openedly and closedly installed around front-rear direction axle center The top plate of room.

Although by using the above-mentioned prior art threshing chamber is opened, in the cleaning of bearing net and maintenance side There are problems in face.

That is, in the case that so that threshing chamber is on limits using the prior art, although threshing chamber can be opened Hand or cleaning device is made to enter in threshing cylinder, still, hand or cleaning device can not but reach bearing net, so as in order into The cleaning and maintenance of row bearing net need to pull out bearing net from threshing chamber opening.

Invention content

The purpose of the present invention is to provide a kind of connection for the cleaning and upkeep operation that can easily and efficiently carry out bearing net Close harvester.

The present invention feature structure be, combine harvester have thresing machine, the thresing machine have will gather in the whole of straw Body puts into threshing chamber and carries out the threshing portion of threshing processing and by freely swinging using the threshing cylinder for rotating freely driving Screening plant to from above-mentioned threshing chamber threshing processed material carry out Screening Treatment screening unit, wherein, have with can freely The mode for swinging opening and closing supports to form the Shu Zhi mechanisms of the upper cross side wall portion of the above-mentioned threshing chamber of above-mentioned thresing machine and oneself The charging crane of above-mentioned upper cross side wall portion is supported by the mode loaded and unloaded.

It, can be with bearing net towards opening by swinging open upper cross side wall portion or being unloaded according to this structure State opens the lateral sides of threshing chamber, so as to be cleaned and examined in the state of being still installed on threshing chamber in bearing net It repaiies.

In addition, according to the scale and the situation of tool etc. that clean and overhaul, do not unload lateral sidewalls sometimes and only swing Opening can then unload upper cross side wall portion to prevent it from becoming encumbrance so that operation easily carries out sometimes.

Therefore, it is not necessary to bearing net can easily and be efficiently subjected to the cleaning of bearing net and maintenance work from threshing chamber taking-up Industry.In addition, regarding concrete condition, upper cross side wall portion can also be unloaded to prevent it from becoming encumbrance, from this point of view It can be carried out efficiently operation.

In said structure, preferably in the lower cross side wall portion of above-mentioned screening unit for forming above-mentioned thresing machine, equipped with putting Enter and take out the cereal sieve handling window that the cereal of above-mentioned screening plant sieves.

According to the structure, handling window can be sieved by cereal to be removed and placed into cereal sieve so as to be replaced.

Therefore, when the variation of the grain species of harvesting, without into being about to the whole from screening of oscillating riddle screening device The labour that portion is removed, you can cereal sieve is changed to the different cereal of mesh and is sieved, so as to easily carry out appropriate screening Processing.

In said structure, preferably have and support to form the above-mentioned de- of above-mentioned thresing machine in a manner of the opening and closing that can freely swing The Shu Zhi mechanisms of the top plate of grain room.

According to the structure, pass through the open top plate of swing, it will be able to open threshing chamber top and by bearing net from threshing chamber It takes out.

Therefore, when the variation of the grain species of harvesting, bearing net can be changed to the different bearing net of mesh, from And appropriate threshing processing can be carried out.

In said structure, preferably have and send dirt valve, it is described to send dirt valve along threshing cylinder axis of rotation also with reinforcing plate Direction is connected to the inner surface side of the top plate for the above-mentioned threshing chamber to form above-mentioned thresing machine in a row, the reinforcing plate with it is above-mentioned Multiple modes that dirt valve is sent to fasten altogether are connected to the outer surface side of above-mentioned top plate.

According to the structure, support strength can be improved using reinforcing plate, to send dirt using top plate to be firmly supported Valve.

It therefore, also can be using top plate come securely even if acting on the big counter-force from threshing processed material on dirt valve is sent Twelve Earthly Branches support sending dirt valve, so as to which dirt valve is high-precision to the progress of threshing processed material to flow guiding using sending.Moreover, only by setting It puts simple structure as reinforcing plate can be realized as, so as to compared with forming top plate etc. using slab, can inexpensively obtain .

In addition, in said structure, it is preferred that for holding together to rotate freely driving to harvesting device upright straw rake Rotating drum be arranged on harvesting portion, in the tooth being arranged in a row along rotating drum axis of rotation direction on above-mentioned rotating drum In, the end side beam strength of tooth positioned at rotating drum transverse direction end side is set as, more than the inner tines on the inside of rotating drum Bending strength.

In the past, exist along rotating drum axis of rotation direction arrange the structure with teeth with same bending strength, But in using the combine harvester with the previous relevant technology of rotating drum, threshing can be generated or rake holds together insufficient feelings Condition.

That is, in the lateral end side in the rotating drum axis of rotation direction of rotating drum, soil is not gathered in sometimes Upright straw is entangled with and is entered in harvester together with harvesting object straw.If positioned at the end side of the lateral end side of rotating drum Beam strength of tooth is small, then end side tooth can be deformed because of the powerful counter-force from straw, so as to which end side tooth occur to straw Rake holds together the problem of bad.Therefore, in order to enable the rake of end side tooth holds together and bad is difficult to occur, it is necessary to which the bending for increasing end side tooth is strong Degree holds together so that end side tooth strongly carries out rake.In this way, the inside on the inside of the rotating drum axis of rotation direction of rotating drum Bending strength also becomes larger possessed by tooth.And actually inner tines are the harvestings being entangled with to the upright straw for not gathering in soil Object straw is acted on without by big counter-force as the tooth of end side, nevertheless, still straw, which is applied with, to send out The powerful rake of the raw flexure caused by counter-force holds together effect.As a result, in the inside of rotating drum, it is different according to the type of straw, The problem of threshing easily occurs.

Therefore, by using this structure, the end side tooth tool that the rake of upright straw holds together is carried out in the lateral end side of rotating drum There is the bending strength bigger than inner tines, so as to which the counter-force even if from straw is big, it is also difficult to deform and can carry out powerful Rake holds together effect.

On the other hand, carried out in the inside of rotating drum the inner tines that the rake of upright straw holds together have it is smaller than end side tooth curved Qu Qiangdu mildly carries out straw rake and holds together effect so as in the case of by the big counter-force from straw, be easily bent.

Therefore, it is possible to be difficult to occur to carry out the straw realized by rotating drum under rake holds together insufficient or threshing kilter Hold together to the rake of harvesting device, straw can swimmingly be made to flow and high-efficient homework, and also be able to prevent grain loss.

In said structure, it is preferred that above-mentioned inner tines are shaped to so that the end side of inner tines is compared with above-mentioned end side The end side of tooth more leans on rotating drum peripheral side.

According to the structure, even if rotating drum decline is made to lead to inside to be acted in the position close proximity to ground Toe joint, since the end side of inner tines more leans on rotating drum peripheral side compared with the end side of end side tooth, so also can be easily With avoiding end side toe joint.Inner tines have smaller bending strength compared with end side tooth, so as to be easier to generate elasticity due to ground connection Deformation, it is difficult to deform or damaged.

Even if it is grounded, also is difficult to because of inner tines or end side tooth therefore, it is possible to obtain rotating drum excessive descent It is grounded and deforms or the combine harvester of damaged excellent durability.

In said structure, preferably the development length that above-mentioned end side tooth extends from tooth support portion is set as, it is shorter than above-mentioned The development length that inner tines extend from tooth support portion.

According to the structure, even if rotating drum decline is made to lead to inside to be acted in the position close proximity to ground Toe joint, since end side tooth is shorter than the development length that inner tines extend from tooth support portion from the development length that tooth support portion extends, So as to easily avoid the ground connection of end side tooth.Inner tines have smaller bending strength compared with end side tooth, so as to be easier because of ground connection And generate flexible deformation, it is difficult to deform or damaged.

Even if it is grounded, also is difficult to because of inner tines or end side tooth therefore, it is possible to obtain rotating drum excessive descent It is grounded and deforms or the combine harvester of damaged excellent durability.

In said structure, the adjacent pair tooth support portion preferably on the rotating drum direction of rotation of above-mentioned rotating drum In, it is supported by the inner tines group of tooth support portion support with multiple above-mentioned inner tines and by another tooth support portion Inner tines group with multiple above-mentioned inner tines is configured to staggered positions on rotating drum axis of rotation direction.

According to the structure, the installation interval of the inner tines on each tooth support portion can be set to be large, reduce rotating drum The quantity of possessed inner tines so from the point of view of the setting number of inner tines, can be obtained inexpensively, simultaneously, additionally it is possible to profit The rake that straw is accurately proceed with rotating drum holds together.

That is, inner tines edge rotation of the inner tines on a tooth support portion each other and on another tooth support portion Turn reel circumferential array.Each tooth branch is arranged on thereby, it is possible to be set to be large, reduce by the interval of the inner tines on each tooth support portion The quantity of inner tines on support part, as a result, be located at the inner tines for reaching the tooth support portion below rotating drum each other even if existing Between without the upright straw that is engaged by the inner tines on the tooth support portion, can also make the tooth support portion of next arrival Inner tines engage the upright straw and harrowed into harvesting device.

Description of the drawings

Fig. 1 is the left side view of combine harvester entirety；

Fig. 2 is the right side view of combine harvester entirety；

Fig. 3 is the vertical view of combine harvester entirety；

Fig. 4 is the longitudinal cross-sectional side view of thresing machine；

Fig. 5 is the cross-sectional front view of thresing machine；

Fig. 6 is the vertical profile rearview of two level feeding back device；

Fig. 7 is the side view of two level feeding back device；

Fig. 8 is the stereogram under the opening state of upper cross side wall portion；

Fig. 9（A）It is to close the vertical view gone up in the state of cross side wall portion, Fig. 9（B）It is the swing opening shape of upper cross side wall portion Vertical view under state；

Figure 10 is charging crane and the side view of Shu Zhi mechanisms；

Figure 11 is charging crane and the rearview of Shu Zhi mechanisms；

Figure 12 is locked out the vertical view of mechanism；

Figure 13 is locked out the front view of mechanism；

Figure 14 is the side view of the cereal sieve handling window department of assembly of side wall laterally outside；

Figure 15 is the vertical view of top plate；

Figure 16 is the sectional view of the reinforcing plate department of assembly of top plate；

Figure 17 is the left side view of the combine harvester entirety of second embodiment；

Figure 18 is the right side view of the combine harvester entirety of second embodiment；

Figure 19 is the vertical view of the combine harvester entirety of second embodiment；

Figure 20 is the side view of the rotating drum department of assembly in harvesting portion；

Figure 21 is the side view of rotating drum；

Figure 22 is the vertical view of rotating drum；

Figure 23 is the front view of the lateral one end of rotating drum；

Figure 24 is the front view of the lateral another side of rotating drum；

Figure 25 is the side view declined under job state of the lower position side of rotating drum；

Figure 26 is the side view declined under job state of the high position side of rotating drum；

Figure 27 is the side view declined under job state of the lower position side of rotating drum；

Figure 28 is the side view of tooth support portion；

Figure 29 is the vertical view of a part for feeding screw；

Figure 30 is the side view of seat support construction；

Figure 31 is the vertical view of seat support construction；

Figure 32 is the front view of seat support construction；

Figure 33 is the side view at the tooth support portion for the rotating drum for implementing structure with second.

Specific embodiment

[first embodiment]

With reference to the accompanying drawings come illustrate the present invention first embodiment.

Fig. 1 is the left side view of the combine harvester entirety of first embodiment of the invention.Fig. 2 is the embodiment of the present invention The right side view of combine harvester entirety.Fig. 3 is the vertical view of the combine harvester entirety of the embodiment of the present invention.Such as these figure institutes Show, the combine harvester of the embodiment of the present invention has：Travel machine body, the travel machine body are filled using the crawler type traveling of pair of right and left It puts 1,1 to walk certainly, and with the Drive Section 2 for being mounted with driving seat 2a；Mounted on the rear portion side of the body rack 3 of the travel machine body Thresing machine 4；Grain bagging portion 10, the pack case 11 equipped with the lateral sides for being arranged on the thresing machine 4；And above-mentioned The forepart of thresing machine 4 is connected with the harvesting portion 20 of feed device 21.

The combine harvester harvests rice, wheat etc..

That is, harvesting portion 20 also has other than with above-mentioned feed device 21：It is connected to the feed device 21 Front end harvesting rack 22；It is arranged on the nearside divider 23 of the both lateral sides of the front end of the harvesting rack 22；In above-mentioned receipts The harvesting device in the hairclipper shape of the front end of the pallet portion 22a of harvesting rack 22 can be freely drivingly disposed on cutting mill frame 22 24；The spiral charging for the upper surface side for being drivingly configured at above-mentioned pallet portion 22a can be rotated freely in above-mentioned harvesting rack 22 Device 25；And rotating drum 27, the rotating drum 27 can rotate freely the support arm 26,26 for being drivingly supported on pair of right and left On, which extends forwards from the top of the base end side of above-mentioned harvesting rack 22.

Above-mentioned feed device 21 is under the action of hydraulic cylinder 28 around the lifting axle center P towards body transverse direction relative to thresing machine 4 are swung up and down operation, and above-mentioned harvesting portion 20 is elevated to the above-mentioned pallet portion 22a of harvesting rack 22 to drop to ground attached as a result, The non-job state of rising that near decline job state and harvesting rack 22 is substantially increased from ground.Under being in harvesting portion 20 Make travel machine body when driving under drop job state, harvesting portion 20 gather in the harvesting processing of upright straw and supplied to thresing machine 4 To the processing of harvesting straw.

That is, upright straw is divided into harvesting object and non-harvesting object using pair of right and left nearside divider 23,23, so Afterwards, will hold together on one side by the use of rotating drum 27 to while harvesting device 24 harvesting is utilized to fill as the upright straw rake for gathering in object 24 are put to be gathered in.Straw will be gathered in along pallet portion 22a horizontal strokes using the spiral plate 25a of two end sides in feeding screw 25 To the front for being transported to feed device 21.Utilize the conveying arm that integrally can be rotatably arranged among feeding screw 25 25b's holds together to send, and the harvesting straw for reaching 21 front of feed device is sent to the feed device positioned at 25 rear side of feeding screw 21 entrance.Then, using the conveyer 29 inside feed device 21, it will be fed into the harvesting straw in feed device 21 Via the delivered inside of feed device 21 to rear.Effect is sent using holding together for above-mentioned conveyer 29, after feed device 21 is reached The harvesting straw of end entirety of point from strain root to fringe puts into the threshing chamber 31 of thresing machine 4（With reference to Fig. 4）Front end.

Fig. 4 is the longitudinal cross-sectional side view of above-mentioned thresing machine 4.Fig. 5 is the cross-sectional front view of above-mentioned thresing machine.Such as these figure institutes Show, above-mentioned thresing machine 4 has：It threshing portion 30 with above-mentioned threshing chamber 31 and is sieved positioned at above-mentioned having for 30 lower section of threshing chamber Select the screening unit 40 of room 41.

Above-mentioned threshing portion 30 also has other than with above-mentioned threshing chamber 31：Around towards the threshing cylinder before and after body Axis of rotation 32a can rotate freely the threshing cylinder 32 being drivingly disposed in the threshing chamber 31；Along under threshing cylinder 32 Bearing net 33 of the configuration in above-mentioned threshing chamber 31 around portion side；It is multiple to send dirt valve 35, along threshing cylinder axis of rotation The inner surface side of the top plate 34 of above-mentioned threshing chamber 31 is arranged on the direction of 32a.

Threshing portion 30 carries out threshing processing as follows.

That is, hold together tooth using the rake of spiral plate shape that integrally can be rotatably arranged on 32 front end of threshing cylinder 32b, the threshing with threshing tooth 32c that the harvesting paddy bar for putting into 31 front end of threshing chamber is sent to threshing cylinder 32 are handled Portion.The above-mentioned threshing tooth 32c of circular bar shape and above-mentioned bearing net 33 arranged using the circumferential direction along threshing cylinder 32 and front-rear direction, Threshing processing is carried out to the harvesting straw for being sent to the threshing processing unit.At this point, threshing cylinder 32 rotate transfer effect and It respectively send under the flowing guiding function of dirt valve 35, straw bits etc. are flowed to the rear of threshing chamber 31.The grain of abjection passes through bearing net 33 and under fall in the screening plant 42 of screening unit 40, straw bits etc. dust send dirt mouth 36 row from positioned at 31 rear end of threshing chamber Go out.

Above-mentioned screening unit 40 also has other than with above-mentioned screening room 41 and above-mentioned screening plant 42 and is arranged on screening The windmill 43 of the lower section of 42 front end of device；It is arranged on the level-one screw conveyer 44 and secondary screw type of screening 41 bottom of room Conveyer 45.

Above-mentioned screening plant 42 has：The screen box 50 to link with the screening driving mechanism 46 positioned at screening 41 rear end of room； In upper cereal disk 51, glume-shell screen 52 and the strawwalker 53 that the inside upper part of the screen box 50 is set along the arrangement of screen box front-rear direction； 55 are sieved along the lower cereal disk 54 and cereal of screen box front-rear direction arrangement setting in the bottom of above-mentioned screen box 50.

Above-mentioned screening plant 42 has the screening for the front end that above-mentioned glume-shell screen 52 is arranged in a manner of it can freely load and unload Adjustment plate 56.The screening adjustment plate 56, the stalk mixed in the threshing processed material on upper valley object disk 51 is fallen under bearing net 33 It is used in the following manner in the case that the dust such as bits are more：Under the sieve line 57 that the rear end of cereal disk 51 is extended from above-mentioned Side closes the processed material downcast hole of glume-shell screen 52.

Screening unit 40 utilizes above-mentioned 46 wobble drive screening plant 42 of screening driving mechanism, using windmill 43 to pass through glume The mode of sieve 52, strawwalker 53 and cereal sieve 55 is supplied along thresing machine screening wind in the front-back direction, thus carries out threshing processed material Screening Treatment.

That is, accepting the threshing processed material to fall from bearing net 33 by screening plant 42, upper cereal disk 51, grain husk are utilized The pneumatic jig choosing that the swing screening and screening wind that shell sieve 52, strawwalker 53, lower cereal disk 54 and cereal sieve 55 are carried out are carried out, Filter out mixing for the single grain as coagulation object, the grain that the band branch as two stage treatment object obstructs and stalk crumb etc. The dust such as object and stalk crumb as tertiary treatment object.Make to fall on level-one screw conveyer 44 under coagulation object, utilize this Level-one screw conveyer 44 is transported to the lateral outer side of threshing body.Make to fall on secondary screw type under two stage treatment object defeated Machine 45 is sent, the lateral outer side of threshing body is transported to using the secondary screw type conveyer 45.Using screening wind by three-level Processed material and sending together with the threshing processed material of dirt mouth 36 from threshing chamber 31, from 47 row of dust-exhausting port positioned at threshing After-Body Go out the trailing outside to threshing body.

Above-mentioned dust-exhausting port 47 have flowing guiding is carried out downwards to the dust of discharge and after it is made not diffuse into thresing machine The dust discharge cover 48 of side.

As shown in Fig. 2, above-mentioned grain bagging portion 10 other than with above-mentioned pack case 11, also with bag support portion, is somebody's turn to do Bag support portion is mounted on the upper end side of the grain bag on discharge cylinder 12 using the support of bag supporting rod 13, and accepts table top 14 using bag To support the lower end side of the grain bag.Wherein, above-mentioned discharge cylinder 12 is located at the lower part of pack case 11.

Pack case 11 utilizes device 15 of winnowing（With reference to Fig. 3）To supply the shelling from above-mentioned level-one screw conveyer 44 Grain simultaneously stores it, and the hulled grain of storage is discharged to from above-mentioned discharge cylinder 12 in grain bag.

As shown in figure 3, thresing machine 4 has the two level feeding back device 60 for the lateral outer side for being arranged on threshing body.On Fig. 6 is State the vertical profile rearview of two level feeding back device 60.Fig. 7 is the side view of above-mentioned two level feeding back device 60.As shown in these figures, two Grade feeding back device 60 has：The treatment box of input port 61 is connected in the feeding terminal portion of above-mentioned secondary screw type conveyer 45 62；In side of the inside of the treatment box 62 integrally can rotatably be connected on the helical axis of secondary screw type conveyer 45 The two panels processing blade 63 of formula setting；Lower end side is communicated in the cylinder 64 of winnowing of the outlet of above-mentioned treatment box 62；In the cylinder of winnowing What 64 inside was rotatably set winnow screw rod 65；Step up the lateral sides for stating treatment box 62 and above-mentioned cylinder 64 of winnowing The transmission case 66 of lower end setting.

Two level feeding back device 60 is rotated using secondary screw type conveyer 45 drives above-mentioned processing blade 63, using being housed in The driving force of secondary screw type conveyer 45 is transmitted to the lower end for screw rod 65 of winnowing, driving by the transmission chain 67 in transmission case 66 The screw rod 65 of winnowing, after to carrying out single granulated processed from the two stage treatment object of above-mentioned screening unit 40, in screening plant 42 Carry out Screening Treatment again.

That is, using the carrying capacity of secondary screw type conveyer 45 by the processing from secondary screw type conveyer 45 Object imports the inside for the treatment of box 62.It is acted on using the impact for handling blade 63, the two level for the treatment of box 62 is had enter into being blended in Band branch stalk grain in processed material is handled and makes its simple grain.The processed materials such as grain and stalk crumb that treated are at the place of rotation It is sent in cylinder 64 of winnowing under the action of reason blade 63.The processed material entered in cylinder 64 of winnowing screw rod 65 of being winnowed is raised to be sent to and is raised The upper end of grain silo 64.Utilize the throwing of rotating vane 68 that integrally can be rotatably set up on the helical axis for screw rod 65 of winnowing The effect of throwing, the processed material that will reach the upper end for cylinder 64 of winnowing are sent into the feedback outlet 69 of the lateral sidewalls positioned at thresing machine 4, are allowed to From the feedback outlet 69 by falling on screening room 41 under between the body lateral sidewalls of threshing chamber 31 and threshing cylinder 32, supply as a result, It is given to the front end of screening plant 42.

Above-mentioned treatment box 62 has：It is bolted to the lateral sidewalls 70 of the travel machine body laterally inboard positioned at thresing machine 4 （Call inboard lateral sides wall 70 in the following text）On case ontology 62a；Opposite side profit in the 61 place side of above-mentioned input port of case ontology 62a The side plate 62c being connected in a manner of it can freely load and unload with connection bolt 62b.

That is, by unloading lower side panel 62c come the inside of open treated case 62 so that even if still connecting in case ontology 62a In the state of being connected on above-mentioned inboard lateral sides wall 70, maintenance and cleaning inside treatment box can be also carried out.Transmission case 66 with The mode that can freely load and unload is connected on the input shaft 65a of the helical axis of secondary screw type conveyer 45 and screw rod 65 of winnowing, energy It is enough to load and unload above-mentioned transmission case 66 with together with side plate 62c in the state of side plate 62c is installed on.

As shown in Figure 1, above-mentioned thresing machine 4 has the lateral sidewalls 71 for being arranged in its travel machine body lateral outer side（Ginseng According to Fig. 5, side wall 71 laterally outside are called in the following text）Outer surface side upper front shroud 72, upper back cover 73, lower front shroud 74 and lower back cover 75.

Above-mentioned upper front shroud 72, above-mentioned lower front shroud 74 and the covering of above-mentioned lower back cover 75 are set to outside above-mentioned side wall laterally outside 71 The tape handler 76 of surface side（With reference to Figure 14）.Above-mentioned tape handler 76 will be from starting below driver's seat seat 2a Machine 5（With reference to Fig. 2）Driving force pass to above-mentioned threshing cylinder 32, above-mentioned windmill 43, above-mentioned level-one screw conveyer 44, on State secondary screw type conveyer 45 and above-mentioned screening driving mechanism 46.

Above-mentioned upper front shroud 72, above-mentioned lower front shroud 74 and above-mentioned lower back cover 75, by across each cover 72,74,75 and above-mentioned outside The charging crane that lateral sidewalls 71 are set（It is not shown）And it is supported on side wall 71 laterally outside.The above-mentioned dress of each cover 72,74,75 Release mechanism utilizes hook（It is not shown）It forms, is grasped by using the operating parts 77 being arranged on cover 72,74,75 to side oscillation is detached from Make hook, carry out connection of the release cover 72,74,75 relative to side wall 71 laterally outside.

Each cover 72,74,75 can also be connected with freely loading and unloading by connecting bolt.

As shown in figure 8, in the above-mentioned side wall laterally outside 71 of thresing machine 4, formed threshing chamber 31 upper cross side wall portion 71a Be formed as split with the lower cross side wall portion 71b for forming above-mentioned screening unit 40, above-mentioned upper cross side wall portion 71a is supported on above-mentioned The inner surface side of back cover 73.78 ground of body rack for stepping up the rear end for stating back cover 73 and thresing machine 4 is equipped with charging crane 80 With Shu Zhi mechanisms 81.

Figure 10 is above-mentioned charging crane 80 and the side view of above-mentioned Shu Zhi mechanisms 81.Figure 11 is above-mentioned charging crane 80 and upper The rearview of Shu Shuzhi mechanisms 81.As shown in these figures, above-mentioned charging crane 80 and above-mentioned Shu Zhi mechanisms 81 have：It will be upper next The pivot fulcrum 83,83 a pair of of up and down for being attached in above-mentioned body rack 78 and setting to supporter 82,82；In upper back cover 73 The connecting hole 85,85 a pair of of up and down that surface side connects a pair of of connecting plate 84,84 up and down and sets.

Using above-mentioned connecting hole 85 a pair of of up and down by above-mentioned connecting plate 84,84 a pair of of up and down respectively from top fitted in above-mentioned Up and down on a pair of pivot fulcrum 83,83, connecting plate is accepted and supported from below to a pair of supporter 82,82 using its upper surface up and down 84, by being set as the state, upper back cover 73 is connected in body rack 78 by charging crane 80, thus to obtain above-mentioned upper cross side Wall portion 71a is connected to the state of body rack 78.Shu Zhi mechanisms 81 carry out pivotal support so that above-mentioned upper cross side wall portion 71a Opening and closing is swung around towards the opening and closing axle center X above and below threshing body together with upper back cover 73, opening and closing axle center X is above-mentioned a pair of up and down Axle center possessed by pivot fulcrum 83,83 and the rear end side for being located at upper cross side wall portion 71a.

Charging crane 80, after being released by the way that above-mentioned connecting plate 84,84 a pair of of up and down is extracted from above-mentioned pivot fulcrum 83 Cover 73 releases companies of the above-mentioned upper cross side wall portion 71a relative to body rack 78 as a result, relative to the connection of body rack 78 It connects.

Fig. 9（A）It is the vertical view closed in the state of upper cross side wall portion 71a.As shown in the drawing, charging crane 80 is utilized Upper back cover 73 is connected to body rack 78, also, is set as with the above-mentioned upper front shroud 72 under installation condition before and after travel machine body The closed state arranged on direction.In this way, upper cross side wall portion 71a closes the threshing chamber horizontal stroke positioned at above-mentioned side wall laterally outside 71 To opening 86.At this point, the locking mechanism 87 set using the front end for stepping up back cover 73 and above-mentioned side wall laterally outside 71, it will be upper Back cover 73 is fixed in off position, and thereby, it is possible to fix upper cross side wall portion 71a in off position.

Figure 12 is the vertical view of above-mentioned locking mechanism 87.Figure 13 is the front view of above-mentioned locking mechanism 87.Such as these figure institutes Show, above-mentioned locking mechanism 87 has：It is arranged on the locking level 87a of the outer surface side of above-mentioned side wall laterally outside 71；With the locking Bar 87a detachedly forms and is arranged on a pair of of hook 87b, 87b of the back side of the front end of back cover 73；With to above-mentioned a pair Hook 87b, 87b carry out operating parts 88 swinging release operation, being arranged on the surface side of back cover 73.

It, can also be using the knot for closing and fixing upper back cover 73 by connection bolt as the replacement of the locking mechanism 87 Structure, so as to carry out the closing of upper cross side wall portion 71b locking.

The upper cross side wall portion 71a that the solid line of Fig. 8 represents is the upper cross side wall portion swung under open state.Fig. 8's is double The upper cross side wall portion 71a that chain-dotted line represents is the upper cross side wall portion unloaded under open state.Fig. 9（B）It is upper lateral sidewalls The vertical view swung under open state of portion 71a.As shown in these figures, latch-release is had been switched in above-mentioned locking mechanism 87 Upper back cover 73 in the state of state is opened around lateral outer side swings of the above-mentioned opening and closing axle center X to travel machine body.In this way, upper transverse direction Side of sidewall portion 71a swings together to travel machine body lateral outer side with upper back cover 73 and becomes swing open state.Alternatively, by will be upper The operation that back cover 73 lifts relative to above-mentioned supporter 82 extracts upper and lower a pair of of connecting plate 84,84 from pivot fulcrum 83, so as to solve Except the connection using the upper back cover 73 that above-mentioned charging crane 80 is realized relative to body rack 78.In this way, upper cross side wall portion 71a It is unloaded together from body rack 78 with upper back cover 73 and becomes and unload open state.In this way, it in any case, can open Above-mentioned threshing chamber transverse opening 86 carries out in a state that bearing net 33 is still installed on threshing chamber 31 from threshing body lateral outer side Maintenance and cleaning.

Such as Fig. 9（B）It is shown, on swing is open in the state of cross side wall portion 71a, one end is freely rotatable and risen The another side of the locking level 89 on the connecting plate 84 of above-mentioned downside is supported on to drop, is locked mounted on possessed by supporter 82 In rod aperture 82a.In this way, locking level 89 withstands under the opening state of upper back cover 73 and supports back cover on this, thereby, it is possible to will be upper Cross side wall portion 71a is fixed on opening state.

As shown in Fig. 5, Figure 14, thresing machine 4 has：Cereal sieves handling window 90, is arranged on above-mentioned side wall 71 laterally outside Above-mentioned screening unit 40 is formed in the above-mentioned lower cross side wall portion 71b and above-mentioned inboard lateral sides wall 70 of the middle above-mentioned screening unit 40 of formation Lower cross side wall portion 70b on；And the cover 91 of cereal sieve handling window 90.The cereal of above-mentioned side of sidewall portion laterally outside 71 Sieve handling window 90 is configured to, and is covered by above-mentioned lower back cover 75.The cereal sieve handling window 90 of above-mentioned inboard lateral sides wall portion 70b is located at The lower section of above-mentioned pack case 11.

Above-mentioned each cover 91, it is above-mentioned by being set in a manner of it freely can detachedly engage and act on 91 lower end of cover Holding section 92 in lower cross side wall portion 70b, 71b and a pair of of the connection bolt 93,93 for being installed on 91 upper end of cover, relatively It is loaded and unloaded in lower cross side wall portion 70b, 71b, is opened and closed cereal sieve handling window 90 as a result,.

That is, when the crop species of harvest change, cereal sieve 55 is changed to equipped with appropriately sized place Manage the cereal sieve of object downcast hole.The replacement will get progress according to following.

That is, unload above-mentioned lower back cover 75 and positioned at lower 75 behind of back cover above-mentioned cover 91, to open outside horizontal Handling window 90 is sieved to the cereal of side wall 71, from cereal sieve handling window 90 between the one end of cereal sieve 55 and screen box 50 lead to Cross connection or the connection releasing that connection bolt is realized.Above-mentioned cover 91, the opening unloaded positioned at above-mentioned 11 lower section of pack case is above-mentioned The cereal sieve handling window 90 of inboard lateral sides wall 70, the another side of cereal sieve 55 and screen box 50 are carried out from the cereal handling window 90 Between by connect bolt realize connection or connection release.It is sieved from the cereal of side wall 71 or inboard lateral sides wall 70 laterally outside Handling window 90 carries out cereal sieve 55 and is placed and taken out relative to screening room 41.

As shown in Fig. 5, Figure 15, above-mentioned top plate 34 is travelled via the end edge of the travel machine body lateral outer side in the top plate 34 Body front-rear direction arranges three Ge Shuzhi mechanisms 94 of setting and is connected to body rack 95.

That is, along travel machine body front and back possessed by connecting pin 94a of the top plate 34 around above-mentioned each Shu Zhi mechanisms 94 To opening and closing axle center Y decline relative to body rack 95 and swing, the free end 34a and body rack 96 for becoming top plate 34 offset The closed posture connect thereby turns off and is open 97 on threshing chamber.At this point, by making to be arranged in top along travel machine body front-rear direction Three locking pieces 98 of the free end of plate 34 act on body rack 96, can top plate 34 be fixed on closed posture.

It is swung, can opened on threshing chamber by the way that top plate 34 is made to rise around above-mentioned opening and closing axle center Y relative to body rack 95 Opening 97 is open from the threshing chamber and 97 overhauls and clean threshing cylinder 32,97 can also will be held by being open on threshing chamber Net 33 is connect to extract to outside from threshing chamber 31.Bearing net 33 is circumferentially divided into two segmentation bearing nets along threshing cylinder and is pulled out Go out.

As shown in figure 15, above-mentioned top plate 34 has adding for the both ends being set in the travel machine body transverse direction of its outer surface side Strong plate 100.As shown in Figure 15, Figure 16, above-mentioned each reinforcing plate 100 is being located at threshing chamber forepart in dirt valve 35 with above-mentioned multiple send Three corresponding positions in end for sending dirt valve 35, using bolt 101 is connected, by with being connected in a manner of dirt valve 35 is sent to fasten altogether On top plate 34.

That is, the forepart due to threshing cylinder 31 process objects such as to consider to be worth doing than there is more grain and straws at rear portion Object, so as to dirt valve 35 be sent to bear stronger anti-work when sending dirt valve 35 than be located at 31 rear portion of threshing chamber positioned at 31 forepart of threshing chamber Firmly.Therefore, each reinforcing plate 100 improves support strength to carry out top plate 34 securely to sending the support of dirt valve 35.

As shown in figure 4, above-mentioned screening plant 42, via step up the rear end side of stating screen box 50 and with above-mentioned screening driving mechanism The charging crane 103 that the support frame 102 of 46 linkages is set, is connected to above-mentioned support frame 102 in a manner of it can freely load and unload.

That is, above-mentioned dust discharge cover 48 from threshing body is unloaded, opens above-mentioned dust-exhausting port 47, by hand from the dust discharge Mouth 47 stretches into screening room 41, releases the connection relative to support frame 102 using the screen box 50 that above-mentioned charging crane 103 is realized, and And by screening plant 42 to threshing body rear side moving operation.In this way, utilize the left and right one being arranged on above-mentioned support frame 102 Carry out sliding guidance screen box 50 to guide rail 104,104, make screening plant 42 that can pass through by being moved in threshing chamber to dust-exhausting port 47 It easily takes out operation and is pulled out to entire screening plant 42 outside body from dust-exhausting port 47.

The replacement of upper cross side wall portion 71b as above-described embodiment can also be used around positioned at upper cross side wall portion Front end side and the structure that is opened and closed towards the axis swing of threshing body upper and lower directions or around positioned at upper cross side wall portion Upper end side the structure being opened and closed towards threshing body axis swing in the front-back direction.It is attained by these cases The purpose of the present invention.

[second embodiment]

Illustrate second embodiment of the present invention with reference to the accompanying drawings.

Figure 17 is the left side view of the combine harvester entirety of second embodiment of the invention.Figure 18 is that the present invention second is real Apply the right side view of the combine harvester entirety of mode.Figure 19, which is that the combine harvester of second embodiment of the invention is whole, to bow View.As shown in these figures, the combine harvester of the embodiment of the present invention has：Travel machine body, the travel machine body utilize left and right one To crawler type running device 201,201 from walking, and with the Drive Section 202 for being mounted with to drive seat 202a；Mounted on the row Sail the thresing machine 204 of the rear portion side of the body rack 203 of body；Grain bagging portion 210 is equipped with and is arranged on the thresing machine The pack case 211 of 204 lateral sides；And it is connected with the harvesting portion of feed device 221 in the forepart of above-mentioned thresing machine 204 220。

The combine harvester harvests rice, wheat etc..

That is, harvesting portion 220 also has other than with above-mentioned feed device 221：It is connected to the feed device The harvesting rack 222 of 221 front end；It is arranged on the nearside divider 223 of the both lateral sides of the front end of the harvesting rack 222； In above-mentioned harvesting rack 222 configuration the pallet portion 222a of harvesting rack 222 front end and be arranged to freely to drive push away The harvesting device 224 of sub- shape；Feeding screw 225, near the rear of above-mentioned harvesting device 224 and in above-mentioned pallet portion The upper surface side of 222a can be rotated freely and is drivingly configured in above-mentioned harvesting rack 222；And rotating drum 227, the rotation Reel 227, which can rotate freely, to be drivingly supported on the support arm 226,226 of pair of right and left, and the support arm is from above-mentioned harvesting rack The top of 222 base end side extends forwards.

Above-mentioned feed device 221 is under the action of hydraulic cylinder 228 around the lifting axle center P towards body transverse direction relative to threshing Machine 204 swings up and down operation, as a result, above-mentioned harvesting portion 220 be elevated to harvesting rack 222 above-mentioned pallet portion 222a drop to ground The non-job state of rising that decline job state and harvesting rack 222 near face are substantially increased from ground.At harvesting portion 220 Make travel machine body when driving under job state in declining, harvesting portion 220 gather in the harvesting processing of upright straw and to threshing The processing of the supply harvesting straw of machine 204.

That is, upright straw is divided into harvesting object and non-harvesting object using pair of right and left nearside divider 223,223, Then, will hold together on one side by the use of rotating drum 227 to while harvesting device 224 to utilize the receipts as the upright straw rake for gathering in object Device 224 is cut to be gathered in.Straw will be gathered in along pallet using the spiral plate 225a of two end sides in feeding screw 225 Portion's 222a lateral transfers are to the front of feed device 221.Using integrally being rotatably arranged among feeding screw 225 Conveying arm 225b hold together to give, the harvesting straw for reaching 221 front of feed device is sent to positioned at 225 rear side of feeding screw Feed device 221 entrance.Then, using the conveyer 229 inside feed device 221, it will be fed into feed device Harvesting straw in 221 is via the delivered inside of feed device 221 to rear.Hold together to send effect using above-mentioned conveyer 229, it will The harvesting straw of 221 rear end of arrival feed device entirety of point from strain root to fringe puts into the threshing chamber of thresing machine 204（Do not scheme Show）.

As shown in figure 29, the terminal part 225c of above-mentioned each spiral plate 225a of above-mentioned feeding screw 225 by welding in spiral shell Steel wire rod on rotating plate 225a is formed.

That is, when on the terminal part 225c in spiral plate 225a generate abrasion when, by new steel wire rod is installed come The steel wire rod of abrasion is replaced, can only be repaired by replacing terminal part 225c.

Thresing machine 204 utilizes the threshing cylinder for making to put into the harvesting straw rotation in threshing chamber（It is not shown）Carry out threshing Processing.

As shown in figure 18, above-mentioned grain bagging portion 210 is other than with above-mentioned pack case 211, also with bag support portion, This bag of support portion is mounted on the upper end side of the grain bag on discharge cylinder 212 using the support of bag supporting rod 213, and utilizes bag adapting table Face 214 supports the lower end side of the grain bag.Wherein, above-mentioned discharge cylinder 212 is located at the lower part of pack case 211.

Pack case 211 utilizes device 215 of winnowing（With reference to Figure 18）To supply the screening unit from thresing machine 204（It is not shown） Hulled grain and it is stored, and the hulled grain of storage is discharged to from above-mentioned discharge cylinder 212 in grain bag.

As shown in Figure 18, Figure 19, grain bagging portion 210 has front and rear a pair of of operation auxiliary part 216,216.Each operation auxiliary Part 216 is projected into from bag support portion under travel machine body lateral outer side with can be switched to as shown in solid in Figure 18 and Figure 19 The mode of the rising receiving posture that is located at pack case 211 top of the drop using posture and as shown in double dot dash line in Figure 18 is propped up Support.By the way that each operation auxiliary part 216 is switched to decline using posture, each operation auxiliary part 216 is in accepts table top 214 away from bag The height H of upper surface is the configuration height of 1.0 ~ 1.1m, thus in order to be taken in 210 enterprising luggage bag operation of grain bagging portion User can be used as to lumbar.

As shown in Figure 30, Figure 31, Figure 32, above-mentioned driving seat 202a drives seat 202a lower face sides via being arranged on Pair of right and left installing component 230,230, be arranged on above-mentioned pair of right and left installing component 230,230 front end connecting shaft 231st, the support member 232 of the both ends 231a of the connecting shaft 231 is rotatably supported using support chip portion 232a, is supported In seat supporting table 233.Seat supporting table 233 becomes the hood for covering above-mentioned engine 205.Each installing component 230, Via mounted on the yielding rubber 234 of 230 rear end of installing component and the buffering rubber on connecting shaft installing component 230a Glue 234, on the upper surface for loading and being supported on seat supporting table 233.

Above-mentioned seat supporting table 233 has the seat fixed mechanism 236 equipped with seat fixed body 235, which fixes Body 235 is arranged on the upper surface side of the seat supporting table 233.The seat fixed mechanism 236 is in addition to above-mentioned seat fixed body Other than 235, also there is the locking pin 237 that can be freely loaded and unloaded on the seat fixed body 235.Seat fixed mechanism 236 pass through by Above-mentioned locking pin 237 is installed on pair of right and left longitudinal slice 235a, 235a of above-mentioned seat fixed body 235, make locking pin 237 from Top carries out stopping function to the rear end of above-mentioned installing component 230, prevents installing component 230 around the end of above-mentioned connecting shaft 231 The axle center of portion 231a, which rises, to be swung, and seat 202a will be driven as a result, by, which becoming, is fixed on the seat lock-out state declined using posture.

That is, seat fixed mechanism can be released by the way that above-mentioned locking pin 237 is unloaded from seat fixed body 235 236 pairs of fixations for driving seat 202a, swing can be risen relative to seat supporting table 233 by driving seat 202a as a result, so as to It is switched to the repair open posture of rising of open 233 top of seat supporting table.

Illustrate above-mentioned rotating drum 227 below.

Figure 21 is the side view of above-mentioned rotating drum 227.Figure 22 is the vertical view of above-mentioned rotating drum 227.On Figure 23 is State the front view of 227 one end of rotating drum.Figure 24 is the front view of above-mentioned 227 another side of rotating drum.Such as these figure institutes Show, above-mentioned rotating drum 227 has：Rotatably it is supported on the driving of the terminal part of above-mentioned a pair of support arms 226,226 Axis 240；Integrally can rotatably be arranged on the drive shaft 240 it is left and right end portions, be seen as pentagon from travel machine body side Reel frame 241；The tooth support portion 242 made of circular pipe, across pair of right and left reel frame 241,241 ground are along rotating drum 227 circumferential array is arranged on rotating drum 227, also, there are one each at five of reel frame 241 tops in a manner of match It puts.

Above-mentioned each reel frame 241 has：There are five the reel frame ontology 241b of the sheet metal of arm 241a for tool；It is arranged on each arm The block 243 of the resin of the terminal part of 241a；Cricoid band plank 244 is stepped up and states five blocks 243 and wind, with it is upper It states the shared common fastening bolt of block 243 and is connected to said arm 241a.Above-mentioned each block 243, which is formed, rotatably to be installed State the mounting portion of tooth support portion 242.Cyclic annular band plate 244 is by being formed in the divided segmentation band plank in the position of each arm 241a 's.

Rotating drum 227 has：Tooth 245,246, along rotating drum axis of rotation X1 possessed by above-mentioned drive shaft 240 （Hereinafter referred to as reel axis of rotation X1）Direction be arranged on above-mentioned each tooth support portion 242；Tooth holding mechanism 260, The lateral outer side of a side of rotating drum 227 is arranged on, has from travel machine body side and is seen as pentagonal auxiliary rotary body 261。

A pair of support arms 226,226 of rotating drum 227 utilizes and one in above-mentioned a pair of support arms 226,226 and receipts The connected hydraulic cylinder 250 of cutting mill frame 222 swings up and down operation around the axle center Y1 of connecting shaft 251 relative to harvesting rack 222, so as to Rotating drum 227, which is elevated to, declines job state and the non-job state of rising.

Figure 25 is the side view declined under job state of the lower position side of rotating drum 227.As shown in the drawing, decline behaviour When making pair of right and left support arm 226,226, and the lower end side of rotating drum 227 being located near ground G, rotating drum 227 As the decline job state of lower position side.In this way, by the rotation of drive shaft 240,227 winding reel axis of rotation of rotating drum X1 rotates, so as to which the tooth 245 of each tooth support portion 242,246 winding reel axis of rotation X1 be made to be rotated to direction of rotation A.Each tooth 245, 246 revolve while remain under the action of above-mentioned tooth holding mechanism 260 from the posture that tooth support portion 242 extends downwards Turn, end 245a, 246a of each tooth 245,246 depict rotational trajectory T, and rotational trajectory T is in the end 223a of nearside divider 223 Rear it is highly mobile to be less than the ground of the ground height H1 of the end 223a of nearside divider 223, also, in harvesting device 224 Front it is highly mobile to be less than the ground of the ground height H2 of the end of harvesting device 224.

Even if upright straw lodging is deeper as a result, even if playing the role of not by the upright straw of nearside divider 223, rotation Reel 227 can also make each tooth 245,246 accurately engage upright straw and hold together to be supplied to harvesting device by upright straw rake 224。

Figure 26 is the side view of the decline job state of the high position side of rotating drum 227.As shown in the drawing, step-down operation Pair of right and left support arm 226,226 and cause rotating drum 227 lower end side be located at from ground G slightly away from position when, rotation Turning reel 227 becomes the decline job state of high position side.In this way, by the rotation of drive shaft 240,227 coiling of rotating drum Cylinder axis of rotation X1 rotations, so as to which the tooth 245 of each tooth support portion 242,246 winding reel axis of rotation X1 be made to be revolved to direction of rotation A Turn.Each tooth 245,246 one side remain what is extended downwards from tooth support portion 242 under the action of above-mentioned tooth holding mechanism 260 Posture rotates on one side, and end 245a, 246a of each tooth 245,246 depict rotational trajectory T1, and rotational trajectory T1 is in nearside divider The rear of 223 end 223a is highly mobile to be higher than the ground of the ground height H1 of the end 223a of nearside divider 223.

As a result, under the decline job state of high position side, no matter travel machine body tilts forward and back, rotating drum Upright straw rake can be held together to be supplied to harvesting device 224 by 227 while each tooth 245,246 is avoided to be grounded.

As shown in figure 27, above-mentioned reel axis of rotation X1 is configured to, and under the decline job state of rotating drum 227, is led to Crossing the straight line S of reel axis of rotation X1 and harvesting device 224 becomes vertical relative to the cropping knife upper surface of harvesting device 224 Vertical line, even if changing the extension angle that each tooth 245,246 extends from tooth support portion 242, can also prevent well straw from Float in harvesting device 224 and supply straw to harvesting device 224.

That is, the tooth 245,246 shown in solid of Figure 27 represents to be supported on tooth support portion 242 with standard extension angle On tooth.Tooth 245,246 shown in the dotted line of Figure 27 is represented compared with the posture of standard extension angle with the inclined appearance in side of drawing back The tooth that gesture supports.Tooth 245,246 shown in the double dot dash line of Figure 27 represents compared with the posture of standard extension angle to march forward The tooth that the inclined posture support in side.As shown in these lines, even if changing the extension that tooth 245,246 extends from tooth support portion 242 Angle also can gather in tooth 245,246 not change the state at the interval between tooth end and harvesting device 224 substantially The top movement of device 224.

It is supported in above-mentioned multiple teeth 245,246 on above-mentioned each tooth support portion 242, the rotating drum positioned at left and right is lateral The tooth 246 of end side is set as end side tooth 246, and the tooth 245 on the inside of rotating drum is set as inner tines 245.Each tooth support portion 242 Above-mentioned each end side tooth 246 and above-mentioned inner tines 245 are made of the solid-iron rounding bar material extended from tooth support portion 242.Such as figure 22nd, shown in 23, every two of the above-mentioned inner tines 245 of each tooth support portion 242 are made of a round bar material, the round bar material quilt Brake forming is to have above-mentioned inner tines 245 at both ends, have the connection connected relative to tooth support portion 242 in middle part Portion 247.

End side tooth 246 has the outer diameter more than inner tines 245, so that each end side tooth 246 of each tooth support portion 242 is had Some bending strengths are more than bending strength possessed by each inner tines 245.

It, sometimes will be into when the upright straw for not gathering in soil is entangled with that is, in the lateral end side of rotating drum 227 The big upright straw rake of the capable counter-force applied to end side tooth 246 holds together.Therefore, even if end side tooth 246 is by big from straw Counter-force is not also bent, and is locked to upright straw, securely holds together straw rake to harvesting device 224.

On the other hand, in the inside of rotating drum 227, will not occur not gathering in being entangled with for the upright straw in soil, so as to The small upright straw rake of the counter-force for applying inner tines 245 is carried out to hold together.Therefore, inner tines 245 are from upright straw It is easier to bend and engage upright straw under counter-force effect, can promptly hold together straw rake to harvesting device 224.

As shown in figure 21, each inner tines 245 of each tooth support portion 242 with the end side of inner tines 245 compared with end side tooth 246 End side more formed by the flexuosity of rotating drum peripheral side.

That is, if the end side tooth 246 of rotating drum 227 is grounded, it is more than inner tines 245 since end side tooth 246 has Bending strength, so be easily deformed or damaged.But even if in the case where rotating drum 227 is grounded and inside Tooth 245 is grounded and end side tooth 246 is earth-free, and flexible deformation easily occurs when with smaller bending strength for inner tines 245, is held Side tooth 246 is because earth-free without plastic deformation or damaged, so as to which inner tines 245 and end side tooth 246 are all difficult to that plasticity occurs Deformation is damaged.

As shown in figure 21, above-mentioned five tooth support portions 242 are set to the first tooth support portion 242A, the second tooth support portion 242B, third tooth support portion 242C, the 4th tooth support portion 242D and the 5th tooth support portion 242E.In addition in rotating drum rotation side Other than a pair of of tooth support portion 242,242 that the first adjacent tooth support portion 242A and the 5th tooth support portion 242E are formed upwards Other pairs of tooth support portions（A pair of of tooth support portion 242 that i.e. the first tooth support portion 242A and the second tooth support portion 242B are formed, A pair of of tooth support portion 242,242 that 242, the second tooth support portion 242B and third tooth support portion 242C are formed, the support of third tooth A pair of of tooth support portion 242,242 that portion 242C and the 4th tooth support portion 242D are formed, the 4th tooth support portion 242D and the 5th tooth A pair of of tooth support portion 242,242 that support portion 242E is formed）, as shown in figure 22, had by what a tooth support portion 242 supported The inner tines group of multiple above-mentioned inner tines 245 and by another tooth support portion 242 support have multiple above-mentioned inner tines 245 Inner tines group, with the inner tines 245 that are equivalent in the inner tines group of each tooth support portion 242 on reel axis of rotation direction Installation interval D1（Hereinafter referred to as inner tines installation interval D1）About 1/2 distance D2, staggered positions along reel rotary shaft Heart direction is configured.

That is, a pair of of the tooth support portion 242 formed in the first tooth support portion 242A and the second tooth support portion 242B, A pair of of tooth support portion 242,242 that 242, the second tooth support portion 242B and third tooth support portion 242C are formed, the support of third tooth A pair of of tooth support portion 242,242 that portion 242C and the 4th tooth support portion 242D are formed, the 4th tooth support portion 242D and the 5th tooth In a pair of of tooth support portion 242,242 that support portion 242E is formed, the inner tines 245 of a tooth support portion 242 each other and Circumferential array of the inner tines 245 of another tooth support portion 242 along rotating drum.Rotation volume is reached even if existing be located at as a result, The inner tines 245 of the tooth support portion 242 of 227 lower section of cylinder are each other without the upright straw engaged by the inner tines 245, rotation Reel 227 can also make the inner tines 245 of the tooth support portion 242 of next arrival engage the upright straw and in this case Upright straw rake is held together to harvesting device 224.

As shown in Figure 23,24, above-mentioned rotating drum 227 has the tooth cover 253 being installed on above-mentioned each tooth support portion 242. As shown in figure 28, above-mentioned each tooth cover 253 covers the above-mentioned connecting portion 247 of inner tines 245, so that straw bits etc. will not be entangled with On the connecting portion 247.Each tooth cover 253 is made of the resin barrel body that slit 254 is equipped in length range, by making slit 254 flexible deformations can be loaded and unloaded to opening state by open slit 254 relative to tooth support portion 242.

Figure 21 represents the side view structure of above-mentioned tooth holding mechanism 260.Figure 23 represents the main view knot of above-mentioned tooth holding mechanism 260 Structure.As shown in these figures, tooth holding mechanism 260 also has other than with above-mentioned auxiliary rotary body 261：It is supported on above-mentioned The side of slave rotating drum on the lug boss 226a of support arm 226 is seen as circular supporter 262；It steps up and states auxiliary rotary body 261 and above-mentioned 241 ground of reel frame correspond to the connecting rod 263 that above-mentioned each tooth support portion 242 is set.

Above-mentioned supporter 262 is outer embedded in above-mentioned lug boss 226a at mounting hole 262a, is fixed on using fixing bolt 265 In the support plate 264 being connected with lug boss 226a.The supporter 262 tool there are three support roller 266, block by these support rollers 266 Enter the circular mounting hole 261a of above-mentioned auxiliary rotary body 261 and be distributed circumference in supporter 262.Assist rotary body 261 It is above-mentioned around being eccentrically disposed within from above-mentioned reel axis of rotation X1 by 266 pivot of above three roller branch on above-mentioned supporter 262 The axle center Z rotations of the central part of supporter 262.The end of the reel frame side of above-mentioned each connecting rod 263 integrally can rotatably connect It is connected on the rotation fulcrum 242a of corresponding above-mentioned tooth support portion 242.The end on the auxiliary rotation side of above-mentioned each connecting rod 263 can Rotatably it is connected to the top of auxiliary rotary body 261.

Tooth holding mechanism 260 as a result, with the rotation of rotating drum 227, makes auxiliary rotary body 261 be rolled up using from rotation Cylinder 227 is rotated, and revolved using connecting rod 263 via the driving force that connecting rod 263 transmits around the axle center Z different from reel axis of rotation X1 Turn the rotation fulcrum 242a of each tooth support portion 242 of operation and relative to each tooth support portion 242 of 241 rotation process of reel frame, no matter The rotation of rotating drum 227 is how, is operable to, keep each tooth support portion 242 end side tooth 246 and inner tines 245 from The posture that tooth support portion 242 extends downwards.

Figure 33 is the side view at the tooth configuration portion for the rotating drum 227 for implementing structure with second.

Implement the rotating drum 227 of structure with end side tooth 246 and inner tines 245 with second, by end side tooth 246 from tooth The development length L1 that support portion 242 extends is set as shorter than the development length L2 that inner tines 245 extend from tooth support portion 242.

That is, if rotating drum 227 is grounded with end side tooth 246, it is more than inner tines 245 since end side tooth 246 has Bending strength, so be easily deformed or damaged.But even if in the case where rotating drum 227 is grounded and inside Tooth 245 is grounded and end side tooth 246 is earth-free, and flexible deformation easily occurs when with smaller bending strength for inner tines 245, is held Side tooth 246 is because earth-free without plastic deformation or damaged, so as to which inner tines 245 and end side tooth 246 are all difficult to that plasticity occurs Deformation is damaged.

The replacement of inner tines 245 as above-described embodiment can also be implemented using such as lower structure, that is, by inner tines 245 are configured to the flexuosity with corner angle so that the end side of inner tines 245 than end side tooth 246 end side more by rotation Turn the peripheral side of reel.At this point, it can also reach the purpose of the present invention.

Claims (8)

1. a kind of combine harvester has thresing machine（4）, the thresing machine（4）With the entirety for gathering in straw is put into threshing Room（31）And the threshing portion of threshing processing is carried out using the threshing cylinder for rotating freely driving（30）And the sieve by freely swinging Screening device（42）To coming from above-mentioned threshing chamber（31）Threshing processed material carry out Screening Treatment screening unit（40）,

It is characterized in that, with supporting to form above-mentioned thresing machine in a manner of the opening and closing that can freely swing（4）Above-mentioned threshing chamber （31）Upper cross side wall portion Shu Zhi mechanisms（81）And the dress of above-mentioned upper cross side wall portion is supported in a manner of it can freely load and unload Release mechanism（80）.

2. combine harvester as described in claim 1, which is characterized in that forming above-mentioned thresing machine（4）Above-mentioned screening unit （40）Lower cross side wall portion on, equipped be removed and placed into above-mentioned screening plant cereal sieve（55）Cereal sieve handling window （90）.

3. combine harvester as described in claim 1, which is characterized in that have and support shape in a manner of the opening and closing that can freely swing Into above-mentioned thresing machine（4）Above-mentioned threshing chamber（31）Top plate（34）Shu Zhi mechanisms（94）.

4. combine harvester as described in claim 1, which is characterized in that have and send dirt valve（35）, also with reinforcing plate （100）, it is described to send dirt valve（35）It is connected to form above-mentioned thresing machine in a row along threshing cylinder axis of rotation direction（4）It is above-mentioned Threshing chamber（31）Top plate（34）Inner surface side, the reinforcing plate（100）Above-mentioned to send dirt valve with multiple（35）It fastens altogether Mode is connected to above-mentioned top plate（34）Outer surface side.

5. combine harvester as described in claim 1, which is characterized in that upright straw rake is held together into freely revolving to harvesting device Turn the rotating drum of driving（227）It is arranged on harvesting portion（220）,

It is arranged on above-mentioned rotating drum in a row along rotating drum axis of rotation direction（227）On tooth（245、246）In, it is located at The end side tooth of rotating drum transverse direction end side（246）Bending strength be set to, more than the inner tines on the inside of rotating drum （245）Bending strength.

6. combine harvester as claimed in claim 5, which is characterized in that above-mentioned inner tines（245）It is shaped to so that inner tines （245）End side compared with above-mentioned end side tooth（246）End side more lean on rotating drum peripheral side.

7. combine harvester as claimed in claim 5, which is characterized in that above-mentioned end side tooth（246）From tooth support portion（242）Prolong The development length stretched（L1）It is set to, shorter than above-mentioned inner tines（245）From tooth support portion（242）The development length of extension（L2）.

8. combine harvester as claimed in claim 5, which is characterized in that in above-mentioned rotating drum（227）Rotating drum rotation Turn adjacent pair tooth support portion on direction（242）In, by a tooth support portion（242）Support has multiple above-mentioned inner tines （245）Inner tines group and by another tooth support portion（242）Support has multiple above-mentioned inner tines（245）Inner tines Group is configured to staggered positions on rotating drum axis of rotation direction.