CN108135136A - Combine harvester - Google Patents

Abstract

Driving device 63,323 and steering box 318 are configured in the forepart of travel machine body 1.1 forepart of travel machine body, the manoeuvre portion 5 positioned at the side of driving device 63,323 be configured with straight-ahead operation part 44 and convolution operating parts 43.For the connection gonnecting rod body 346 for connection that steering box 318 links with the output control part 326 for being set to driving device 63,323, it is supported on the vertical pillar 327 supported to manoeuvre portion 5.

Description

Combine harvester

Technical field

The present invention relates to the combine harvesters for extracting the fringe stalk transplanted in field and collecting grain.

Background technology

In previous combine harvester, using such as lower structure：The power of the engine of travel machine body will be equipped on via drive It moves device and is transmitted to the traveling portion of traveling crawler belt etc. or so.For example, the combine harvester described in patent document 1 is crawler type Combine harvester.The output of driving device is adjusted according to the main shift lever of manoeuvre portion, the operating quantity of steering tiller is set to. Main shift lever and steering tiller link by the steering box and connection gonnecting rod body of operating quantity conversion and are linked to driving device. Although combine harvester described in patent document 1 is the combine harvester of Track Type, still, pass through the internal mechanism of steering box Effect, can be manipulated with the operating interval identical with four-wheel automobile.

Patent document

Patent document 1：Japanese Unexamined Patent Publication 2012-85598 bulletins

Invention content

But driving device, engine are the vibration sources for generating vibration.In the previous structure, steering box one is well matched Be set to and detached with driving device, therefore, it is possible to because driving device when vibration due to so that flexure, stretch be applied to steering box With the connection gonnecting rod body of driving device connection.In the case that connection gonnecting rod body flexure, stretch it is more, it is possible to Significantly deviation is generated between the output of main shift lever, the operating quantity of steering tiller and driving device.

The technical task of the present application is：A kind of research present situation as described above is provided and implements improved joint Harvester.

The first scheme of the present application is a kind of combine harvester, is had：Driving device, the driving device is to carrying Speed change is carried out in the power of the engine of travel machine body and traveling portion to the left and right transmits the power；The straight trip behaviour of straight-ahead operation Workpiece；The convolution operating parts of convolution operation；And steering box, the steering box are right according to the operating quantity of two operating parts The output of the driving device changes operation, and the driving device and described turn are configured in the forepart of the travel machine body To case, in the travel machine body forepart, positioned at the side of the driving device manoeuvre portion is configured there are two the operating parts, It wherein, will for the connection gonnecting rod body for linking the steering box with the output control part linkage for being set to the driving device It is supported on the vertical pillar supported to the manoeuvre portion.

The alternative plan of the present application is on the basis of the combine harvester of first scheme, in the manoeuvre portion, institute It states the side near driving device and is configured with manipulation column, column and the driving device of manipulating is linked by the vertical pillar, The steering box is installed below the travel machine body forepart, described manoeuvre portion so that the connection gonnecting rod body is from described Steering box extends towards the driving device side, and the middle part of the connection gonnecting rod body is supported on the vertical pillar.

On the basis of the combine harvester of alternative plan, the driving device has pair the third program of the present application The power of the engine carries out the straight trip hydraulic continuously variable transmission of speed change and convolution hydraulic continuously variable transmission, as described defeated Go out control unit, have for the straight trip output control part of the straight trip hydraulic continuously variable transmission and for the convolution hydraulic pressure The convolution output control part of contiuously variable transmission as the connection gonnecting rod body, has and the straight trip output control part connection Straight trip connection gonnecting rod body and the convolution connection gonnecting rod body with the convolution output control part connection, the convolution connection is connected The middle part of the body of rod is supported on the vertical pillar.

The fourth program of the present application is on the basis of the combine harvester of third program, the straight trip connection gonnecting rod body Carrier frame plate is supported on, the carrier frame plate standing is set to the upper surface of the driving device.

According to the present application, for the connection for linking steering box with the output control part linkage for being set to driving device Gonnecting rod body is supported on the vertical pillar supported to manoeuvre portion, therefore, even to by the vibration of the driving device and So that flexure or stretching action can also utilize the vertical pillar supported to the manoeuvre portion in the connection gonnecting rod body The connection gonnecting rod body is supported with high rigidity, so as to inhibit variation, the deformation of the connection gonnecting rod body.Therefore, In straight-ahead operation part, significantly deviation will not be generated between the operating quantity of operating parts and the output of driving device by circling round, without load Sorrow becomes the unexpected transport condition of operator.

Description of the drawings

Fig. 1 is the left view of the combine harvester equipped with driving device of the present application.

Fig. 2 is the right view of combine harvester.

Fig. 3 is the vertical view of combine harvester.

Fig. 4 is the stereogram of the travel machine body forepart from left diagonally forward.

Fig. 5 is the drive system figure of combine harvester.

Fig. 6 is the drive system figure of driving device.

Fig. 7 is the hydraulic circuit diagram of hydraulic continuously variable transmission.

Fig. 8 is bridge and the stereogram of driving device from left diagonally forward.

Fig. 9 is bridge viewed from above and the stereogram of driving device.

Figure 10 is the amplification definition graph of Fig. 9.

Figure 11 is bridge and the stereogram of driving device from right diagonally forward.

Figure 12 is the amplification stereogram of the bridge from left diagonally forward.

Figure 13 is the amplification stereogram of the bridge from right diagonally forward.

Specific embodiment

Hereinafter, the attached drawing based on the driving device for being equipped on ordinary combine harvester, pair so that the present application is realized The embodiment embodied illustrates.First, with reference to Fig. 1~Fig. 3, the summary construction of combine harvester is illustrated. In addition, in the following description, left side during by direction of advance towards travel machine body 1 is referred to as left side, similarly, will be before Right side during into direction is referred to as right side.

As shown in FIG. 1 to 3, have as the ordinary combine harvester of working truck by as traveling portion, rubber The travel machine body 1 that the pair of right and left crawler belt 2 of crawler belt supports.Using single-acting lifting with hydraulic cylinder 4 can be lifted The mode of adjusting, by one side extract, while be taken into paddy, wheat, soybean or corn etc. and do not gather in the portion 3 that extracts of fringe stalk and be assemblied in The forepart of travel machine body 1.

In the left side of travel machine body 1 equipped with threshing portion 9, which is used to extract fringe stalk to what is supplied from the portion that extracts 3 Carry out threshing processing.Grain sorting mechanism 10 is configured in the lower part in threshing portion 9, which is used to be swung Screening and wind filter.Equipped with the bridge as manoeuvre portion taken for operator on the right side of the forepart of travel machine body 1 5.Engine 7 as power source is configured at bridge 5 (driving attend a banquet 42 lower section).In the rear (travel machine body of bridge 5 1 right side) it is configured with：Grain box 6 takes out grain from threshing portion 9；And grain discharge conveyer 8, it will be in grain box 6 Grain towards truck cargo box (or container etc.) discharge.It is configured to：Grain discharge conveyer 8 is made to vert to harvester outside, So as to which the grain in grain box 6 be exported using grain discharge conveyer 8.

Portion 3 is extracted to have：Feed room 11, the feed room 11 are connected with the threshing mouth 9a of 9 forepart of threshing portion；And horizontally long bucket The grain harvest platform 12 of shape, the grain harvest platform 12 are set as connecting with the front end of feed room 11.It will in grain harvest platform 12 Rake holds together auger 13 (platform-type auger) and is pivotally supported as that can rotate.The front upper for holding together auger 13 in rake is configured with rake-bar Rake holds together reel 14.The first cutter 15 of hairclipper shape is configured in the forepart of grain harvest platform 12.In 12 forepart of grain harvest platform The left and right sides is provided projectingly the grain separating body 16 of left and right.In addition, supply conveyor 17 is equipped in feed room 11.Positioned at supply The threshing mouth 9a of the conveying end side of conveyer 17, which is provided with, extracts fringe stalk feeding threshing cylinder 18 (front revolving part).By Lifting links with hydraulic cylinder 4 and by the front end of the lower surface portion of feed room 11 and travel machine body 1, utilizes lifting hydraulic cylinder 4 So that extract portion 3 carries out lifting moving with the aftermentioned input shaft 89 (feed room conveyor shaft) that extracts for lifting fulcrum.

According to above structure, using rake hold together the fringe that does not gather in fringe stalk slightly side of the reel 14 between the grain separating body 16 of left and right into Row rake holds together, and the stem root side for not gathering in fringe stalk is extracted using the first cutter 15, is driven by the rotation for holding together rake auger 13 And so that extract 11 entrance of feed room that fringe stalk is come together near the central portion in the left and right width direction of grain harvest platform 12 attached Closely.It is configured to：All fringe stalks that extract of grain harvest platform 12 are conveyed using supply conveyor 17, and utilize threshing cylinder These are extracted fringe stalk by 18 feeds to the threshing mouth 9a in threshing portion 9.Further, it is also possible to have so that grain harvest platform 12 is around level The horizontal control hydraulic cylinder (illustration omitted) that control fulcrum shaft is rotated, using the horizontal control hydraulic cylinder to cereal Inclination on the left and right directions of header 12 is adjusted, so as to relative to field level flatly to grain harvest platform 12, the One cutter 15 and rake hold together reel 14 and are supported.

As shown in Figure 1 and Figure 3, thrashing cylinder 21 is configured to rotate in the threshing chamber in threshing portion 9.By thrashing cylinder 21 are pivotally supported in thrashing cylinder axis 20 extended on the front-rear direction in travel machine body 1.It is equipped in the downside tensioning frame of thrashing cylinder 21 So that the bearing net 24 that grain leaks out downwards.In addition, 21 forepart of thrashing cylinder peripheral surface with towards the side on the outside of radial direction What formula was provided projectingly spiral helicine helical-blade sheet is taken into blade 25.

According to above structure, the rotation by thrashing cylinder 21 will extract fringe by threshing cylinder 18 from what threshing mouth 9a was fed Stalk is conveyed towards the rear of travel machine body 1, also, is kneaded between thrashing cylinder 21 and bearing net 24 etc., threshing.Than holding The threshing objects such as the small grain of mesh of net 24 are connect to leak out downwards from bearing net 24.By the conveying of thrashing cylinder 21 effect will not from Stalk bits that bearing net 24 leaks out downwards etc. are discharged from the dust-exhausting port 23 at 9 rear portion of threshing portion to field.In addition, in thrashing cylinder 21 What the top conveying speed that rotatably pivot assembly has the indoor threshing object to threshing was adjusted multiple send dirt Valve (illustration omitted).It can be according to extracting the kind of fringe stalk, character and by adjusting the angle for sending dirt valve and at adjusting In the conveying speed (residence time) of the indoor threshing object of threshing.

On the other hand, as the grain sorting mechanism 10 being configured in the lower section in threshing portion 9, has the swing of proportion screening Screening plate 26, the swing screening plate 26 have grain pan, scalping, grain sieve and separator ridlle etc..In addition, as grain screening machine Structure 10 has fan 29 of Air Blast fan shape that screening wind is supplied to swing screening plate 26 etc..For using thrashing cylinder 21 into Row threshing and the threshing object leaked out downwards from bearing net 24 pass through the proportion screening effect of swing screening plate 26 and Air Blast fan shape Fan 29 wind filter effect and screen be grain (smart grain waits product a moment), grain and stalk mixture (band Have the goods of inferior quality such as grain that branch obstructs) and stalk bits etc. and take out them.

In the lower section of swing screening plate 26, has Grade A conveying mechanism 30 and second-class as grain sorting mechanism 10 Product conveying mechanism 31.For the screening by swing screening plate 26 and the fan 29 of Air Blast fan shape and from swing screening plate 26 grain fallen (Grade A) using Grade A conveying mechanism 30 and winnow conveyer 32 and are collected into grain box 6. For the mixture (goods of inferior quality) of grain and stalk, by goods of inferior quality conveying mechanism 31 and goods of inferior quality reduction 33 grade of conveyer Its starting of screening to swing screening plate 26 end side is made to return, and screened again using swing screening plate 26.It is configured to：From row The dust-exhausting port 23 for sailing 1 rear portion of body discharges stalk bits etc. to field.

In addition, as shown in Figure 1 to 4, the driving seat for manipulating column 41 and being taken for operator is configured in bridge 5 Seat 42.It is configured with manipulating column 41：The rotating speed of engine 7 is adjusted in accelerator rod 40；Circular control crank 43, The travelling route of travel machine body 1 is changed by the rotation process of operator；Main shift lever 44 and secondary gear lever 45, they are to row The movement speed for sailing body 1 switches over；Clutch lever 46 is extracted, is driven or stops operation to extracting portion 3；It is and de- Grain clutch lever 47, is driven or stops operation to threshing portion 9.In addition, in the front upper surface side of grain box 6 by screening The fluffy pillar 48 of sun and the roof body 49 for being equipped with sunshade, are covered the top of bridge 5 using the roof body 49 of sunshade.

As shown in Figure 1 and Figure 2, the track frame 50 of left and right is configured in the lower face side of travel machine body 1.In track frame 50 It is provided with：Drive sprocket 51 transmits the power of engine 7 to crawler belt 2；Idler roller 52 maintains the tensioning shape of crawler belt 2 State；Multiple track rollers 53, the ground side of crawler belt 2 is held at ground state by them；And intermediate calender rolls 54, to the non-of crawler belt 2 Ground side is kept.The front side of crawler belt 2 is supported using drive sprocket 51, using idler roller 52 to the rear side of crawler belt 2 Supported, the ground side of crawler belt 2 supported using track roller 53, using intermediate calender rolls 54 to the ungrounded side of crawler belt 2 into Row bearing.

Next, with reference to Fig. 4~Fig. 6, the drive configuration of combine harvester is illustrated.As shown in Fig. 4~Fig. 6, tool The straight trip hydraulic continuously variable transmission 64 for having the traveling speed change of straight trip pump 64a and the motor 64b that keeps straight on is set to gearbox 63. The right side upper surface of 1 forepart of travel machine body in 1 forepart of travel machine body and is that the left side of engine 7 is configured with equipped with engine 7 Gearbox 63.Using engine output band 67 by from the output shaft 65 prominent to the left of engine 7 and from gearbox 63 to the left The prominent connection of transmission input shaft 66 is being capable of passing power.In addition, the homework department that lifting hydraulic cylinder 4 etc. will be driven Supply pump 68 and cooling fan 69 are configured at engine 7, by engine 7 to homework department's supply pump 68 and cooling fan 69 into Row driving.

In addition, it is configured to：The convolution hydraulic continuously variable transmission of steering with rotary pumps 70a and convolution motor 70b 70 are set to gearbox 63, make the output of engine 7 via transmission input shaft 66 and to straight trip hydraulic continuously variable transmission 64 and Convolution hydraulic continuously variable transmission 70 transmits, on the other hand, using control crank 43, main shift lever 44 and secondary gear lever 45 to straight Row hydraulic continuously variable transmission 64 and convolution hydraulic continuously variable transmission 70 carry out output control, by straight trip hydraulic continuously variable transmission 64 And convolution hydraulic continuously variable transmission 70 and to left and right crawler belt 2 be driven so that combine harvester is in field etc. Place's traveling movement.In embodiment, straight trip hydraulic continuously variable transmission 64 is configured on the right side top of gearbox 63 and is returned Revolve hydraulic continuously variable transmission 70.The driving device of the present application is configured to include keep straight on hydraulic continuously variable transmission 64, convolution liquid Press contiuously variable transmission 70 and gearbox 63.

As shown in FIG. 4 and 5, the front-surface side in threshing portion 9 is configured with carries out axis to the front end side of thrashing cylinder axis 20 The thrashing cylinder driving box 71 of bearing.Also, the horizontally long thrashing cylinder input shaft 72 in the left and right that is driven to thrashing cylinder 21 is pivotally supported In thrashing cylinder driving box 71.In addition, has the perforative countershaft 73 on the left and right directions in threshing portion 9.It will be from the left and right in threshing portion 9 The countershaft 73 of side to left and right opposite side is arranged to：From the lower section of thrashing cylinder 21 by and threshing portion 9 is passed through in the lateral direction It wears.The right-hand end of countershaft 73 is provided with homework department's input belt wheel 83.By the threshing clutch 84 and work of tension band wheel-type Industry portion drive band 85 and by output shaft 65 of the right-hand end of countershaft 73 engine 7 can be linked in a manner of passing power.

In the position more against the top than countershaft 73 and it is that the front of thrashing cylinder 21 is provided with：Thrashing cylinder input shaft 72, along row The left and right directions for sailing body 1 is extended；Threshing cylinder 18 is configured on the left and right directions of travel machine body 1；And it extracts defeated Enter axis 89, be extended along the left and right directions of travel machine body 1.In addition, it is inputted as by the driving force of countershaft 73 to thrashing cylinder The thrashing cylinder input mechanism 90 that axis 72 transmits has thrashing cylinder driving pulley 86,87 and thrashing cylinder driving band 88, thrashing cylinder input Mechanism 90 (thrashing cylinder driving pulley 86,87 and thrashing cylinder driving band 88) is configured at the 7 side one end of engine of countershaft 73, comes from The driving force of engine 7 is transmitted to the 7 side one end of engine of the countershaft 73.In addition, as by the driving force of countershaft 73 to cutting Take the transmission of input shaft 89 extracts input mechanism 100, has and extracts driving pulley 106,107 and extract driving band 114, extracts defeated Enter mechanism 100 (extract driving pulley 106,107 and extract driving band 114) and be configured at the hair for being configured with thrashing cylinder input mechanism 90 The opposite side of 7 side one end of motivation that is, the other end of countershaft 73.

In addition, extract supporting frame as shown in figure 4, being provided in the front in the threshing portion 9 of 1 upper surface side of travel machine body 36.It will extract input shaft 89 by bearing body is extracted in the front-surface side for extracting supporting frame 36 and be pivotally supported as that can travel The right and left of body 1 is rotated up, also, in the inside for extracting supporting frame 36 by cylinder shaft 82 and by threshing cylinder 18 are pivotally supported as that can rotate.In addition, rotating a-b box 121 is installed in the left outer surface for extracting supporting frame 36, and And thrashing cylinder driving box 71 is installed in the upper surface side for extracting supporting frame 36.

On the other hand, have the left and right direction that is driven to the supply conveyor 17 in feed room 11 extracts input shaft 89.Driving force is extracted for what the 7 side one end of engine from engine 7 to countershaft 73 transmitted, by it from the opposite of engine 7 It is transmitted to the rotating transmission axle 122 for extracting rotating a-b box 121 the other end of the countershaft 73 of side.By extracting rotating The forward bevel gear 124 of a-b box 121 or reversion are driven cylinder shaft 82 with bevel gear 125.In addition, it forms For：The driving force that extracts is transmitted from the cylinder shaft 82 being pivotally supported to threshing cylinder 18 to input shaft 89 is extracted.

That is, as shown in figure 5, it is configured to：Threshing cylinder 18 is pivotally supported the cylinder shaft 82 in left and right direction, from threshing roll The engine 7 side one end of cylinder axis 82 transmits the driving force of engine 7 to the portion that extracts 3, in the engine 7 of cylinder shaft 82 Left and right the other end of opposite side, which is configured with, extracts rotating a-b box 121, from the another of the countershaft 73 of the opposite side of engine 7 The driving force of engine 7 is transmitted to rotating a-b box 121 is extracted in end.

In addition, as shown in figure 5, it is configured to：Have the thrashing cylinder input shaft 72 of left and right direction in 9 front side of threshing portion, for The driving force that 7 side one end of engine from from engine 7 to countershaft 73 transmits, by its engine 7 to thrashing cylinder input shaft 72 Side one end transmits, and 9 front side of threshing portion is provided with thrashing cylinder input shaft 72, thrashing cylinder input shaft 72 is configured at travel machine body 1 Left and right directions on, thrashing cylinder 21 is pivotally supported in the thrashing cylinder axis 20 being configured on the front-rear direction in travel machine body 1, by cone tooth It takes turns mechanism 75 and connects 20 front end side of thrashing cylinder axis and left and right the other end of the opposite side of the engine 7 of thrashing cylinder input shaft 72 Knot, also, by the driving force of engine 7 from left and right the other end of the opposite side of the engine 7 of countershaft 73 to after to threshing It grain sorting mechanism 10 that grain is screened and extracts portion 3 and transmits.

By thrashing cylinder driving pulley 86,87 and thrashing cylinder driving band 88 and by the right-hand end of thrashing cylinder input shaft 72 with That side, countershaft 73 right-hand end close to engine 7 links.By bevel gear mechanism 75 by the front end of thrashing cylinder axis 20 Side links with the left end of thrashing cylinder input shaft 72 being extended in left-right direction.It is configured to：Make the power of engine 7 from The right-hand end of countershaft 73 is transmitted via thrashing cylinder input shaft 72 and to the front end side of thrashing cylinder axis 20, so as to which thrashing cylinder 21 be driven It moves to rotate in one direction.It on the other hand, will be remote by fan driving pulley 101,102 and fan driving band 103 The left end of the countershaft 73 of that side from engine 7 and the arbor of winnowing being pivotally supported to the fan 29 of Air Blast fan shape 76 left end connection.It is configured to：Make the left-hand end of the power of engine 7 from the left end of countershaft 73 to arbor 76 of winnowing Portion transmits, so as to which fan 29 to be driven to rotate in one direction.

In addition, by conveyer drive band 111 and by the left end for arbor 76 of winnowing and Grade A conveying mechanism 30 The left end of Grade A conveyor shaft 77 and the left end of the goods of inferior quality conveyor shaft 78 of goods of inferior quality conveying mechanism 31 connect Knot.By screening zone 112 is swung axis is carried out by the left end of goods of inferior quality conveyor shaft 78 and to 26 rear portion of swing screening plate The left end connection of the wobble drive axis 79 of the crank-like of bearing.Therefore, it is configured to：By operator to threshing clutch bar 47 operation and to threshing clutch 84 carry out break-make control, by the making operation of threshing clutch 84 and to grain screening machine Each section and thrashing cylinder 21 of structure 10 are driven.

In addition, conveyer 32 of winnowing is driven by Grade A conveyor shaft 77, thus by Grade A conveyer The first-class screening grain of structure 30 is collected to grain box 6.In addition, conveyer is restored to goods of inferior quality by goods of inferior quality conveyor shaft 78 33 are driven, so that being mixed with the second-class screening grain (goods of inferior quality) of the stalk bits of goods of inferior quality conveying mechanism 31 to oscillating riddle The upper surface side of disk 26 is selected to return.In addition, dust-exhausting port 23 be provided with stalk bits disperse dispenser (spreader, omit Diagram) construction in, by dispenser driving pulley 104 and dispenser driving band 105 by the left end for arbor 76 of winnowing Link with the dispenser.

On the other hand, has the cylinder shaft 82 being pivotally supported to threshing cylinder 18.In that side far from engine 7 The left end of cylinder shaft 82 be configured with rotating a-b box 121.The left end of cylinder shaft 82 is inserted in In rotating a-b box 121, also, rotating transmission axle 122 and rotating switching shaft 123 are set to rotating a-b box 121. Cylinder shaft 82 and 122 general arrangement of rotating transmission axle are on same axial line.By extract driving pulley 106,107, Extract driving band 114 and extract clutch 115 (tensioning pulley) and by the left end of rotating transmission axle 122 and countershaft 73 Left end connection.

As shown in figure 5, the conduct conveyer input shaft that the conveying end side having to supply conveyor 17 is pivotally supported Extract input shaft 89.Header drive shaft 91 is pivotally supported to rotate freely in the right side back side of grain harvest platform 12. By extract drive chain 116 and sprocket wheel 117~119 and by the right-hand end of cylinder shaft 82 and the right side for extracting input shaft 89 Side end is linked by left end that can be in a manner of passing power with extended header drive shaft 91 in left-right direction. Have the rake being pivotally supported to harrowing auger 13 and hold together axis 93.By rake hold together drive chain 92 and by the centre of header drive shaft 91 The right-hand end that axis 93 is held together in portion with rake links.

In addition, has the spool shaft 94 that rake is held together reel 14 and is pivotally supported.By jackshaft 95 and reel drive chain 96th, 97 and the right-hand end of the middle part of header drive shaft 91 and spool shaft 94 is linked.Crank is driven by the first cutter Mechanism 98 and the first cutter 15 and the right-hand end of header drive shaft 91 are linked.It is configured to：By to extracting clutch 115 On-off line operation and to supply conveyor 17, rake hold together auger 13, rake hold together 14 and first cutter 15 of reel be driven control, from And continuously the fringe for the not gathering in fringe stalk slightly side in field is extracted.

As shown in figure 5, it is equipped in rotating a-b box 121：Forward bevel gear 124, with rotating transmission axle 122 It is integrally formed；Reversion rotates freely ground axle suspension in extracting input shaft 89 with bevel gear 125；And Intermediate bevel gears 126, It links reversion with bevel gear 125 and forward bevel gear 124.So that Intermediate bevel gears 126 always with forward bevel gear 124 and reversion engaged with bevel gear 125.On the other hand, by spline engage by sliding block 127 slide freely ground axle suspension in Cylinder shaft 82.It is configured to：Sliding block 127 can be caused with can by the rotating forward clutch 128 of jaw clutch shape The mode that engaging is detached from engages, also, be configured to forward bevel gear 124：It can be by the reversion of jaw clutch shape Clutch 129 and sliding block 127 is engaged with reversion with bevel gear 125 in a manner of it can engage disengaging.

In addition, it is configured to：Has the rotating switching shaft 123 that slide is carried out to sliding block 127, in rotating switching shaft 123 are provided with rotating operating rocker 130, by the operation to rotating changer lever (rotating operating parts), switch rotating Arm 130 is swung so that rotating switching shaft 123 rotates, and sliding block 127 is made to use bevel gear with forward bevel gear 124 or reversion 125 contacts, separation make sliding block 127 alternatively be locked to forward by clutch 128 or reversing clutch 129 is rotated forward Bevel gear 125 is used in bevel gear 124 or reversion, so that extracting input shaft 89 and the rotating forward of rotating transmission axle 122 connection or anti- Turn connection.

As shown in figure 5, by the auger clutch 56 and auger of tension band wheel-type drive band 57 and by auger drive shaft 58 right-hand end and the output shaft 65 of engine 7 link.By bevel gear mechanism 59 by the lateral transfer of 6 bottom of grain box 60 front end side of auger and the left end of auger drive shaft 58 link.By bevel gear mechanism 61 by grain discharge conveyer 8 The rear end side of longitudinally fed auger 62 and lateral transfer auger 60 link.Break-make is carried out to auger clutch 56 in addition, having The grain discharge bar 55 of operation.It is configured to：6 front surface of grain box, drive the front surface at 42 rears of attending a banquet grain be installed Discharge bar 55, operator can attend a banquet from driving 42 sides to grain discharge bar 55 operate.

As shown in Figure 1, Figure 2 and shown in Fig. 4, has the hairclipper of the length shapes roughly the same with the first cutter 15 of hairclipper shape Second cutter 133 of shape.As the second cutter frame that the second cutter 133 is assemblied in travel machine body 1, has left side frame 134th, right side frame 135 and central frame 136.In the front end of left side frame 134, right side frame 135 and central frame 136 Side is connected with the second cutter platform 137, thus forms the second cutter knife mechanism 132.

The ground connection skid body 138 of left and right is provided at the both ends of the second cutter platform 137.A left side in the second cutter platform 137 Second cutter 133 is installed as to move back and forth between right ground connection skid body 138.On the other hand, in the driving of travel machine body 1 Table frame is by the cardinal extremity side bearing of right side frame 135 for that can rotate.In addition, travel machine body 1 front side frame by central frame The cardinal extremity side bearing of frame 136 is can rotate.

It is driven as shown in figure 5, having the second cutter for transmitting driving force from rotating a-b box 121 to the second cutter 133 Motivation structure 171.Second cutter driving mechanism 171 has：Second cutter drive shaft 172 passes driving force to the second cutter 133 It passs；Axis 174 is eccentrically rotated, is linked by bevel gear mechanism 173 with the second cutter drive shaft 172；And second cutter drive Dynamic crank mechanism 175, links with being eccentrically rotated axis 174.The one end of the second cutter drive shaft 172 is made to protrude into rotating The Intermediate bevel gears 126 are pivotally supported in the second cutter drive shaft 172 in a manner of engaging in a-b box 121, in Between bevel gear 126 and the second cutter drive shaft 172 is linked with rotating transmission axle 122.

Second cutter driving crank mechanism 175 has：Eccentric rotary body 177 is set to and is eccentrically rotated axis 174；It swings Rotary shaft 178 links with eccentric rotary body 177；Wobble drive arm 179 links with swing rotary axis 178；And push-and-pull Bar 180 links the second cutter 133 with wobble drive arm 179.Furthermore, it is possible to axis 174 and rotating will be eccentrically rotated by setting Transmission axle 122 link one group of sprocket wheel and transmission chain and replace the second cutter drive shaft 172 and bevel gear mechanism 173, and by The sprocket wheel and transmission chain and the driving force of the second cutter 133 is driven into crank machine from rotating transmission axle 122 to the second cutter Structure 175 transmits.

According to above structure, it is configured to：The rotation in one direction for being eccentrically rotated axis 174 is converted into swing rotary axis 178 swing rotary (reciprocating rotary forwarded and reversed in a certain range), so that wobble drive arm 179 is swung, The second cutter 133 is made to reciprocatingly slide, and will just be cut using the second cutter 133 by the first cutter 15 by push-pull rod 180 Residual fringe stalk (the stem root side of the fringe stalk) cut-out in the field after taking so that remaining on the height of the stem root in field reduces.

In addition, as shown in figure 4, have：Cylindric gearing frame 181, it is interior to be equipped with the second cutter drive shaft 172；With And the bevel gear box 182 of quartet box-shaped, it is interior to be equipped with bevel gear mechanism 173.The one end of gearing frame 181 is can dismount Mode, which fastens, is linked to rotating a-b box 121, and bevel gear box 182 fastens be linked to transmission frame in a detachable manner The another side of frame 181.That is, by be eccentrically rotated axis 174, bevel gear box 182, gearing frame 181 and by left side frame 134 It holds in rotating a-b box 121.In addition, the second cutter driving crank mechanism 175 is configured at and is supported in a detachable manner (with reference to Fig. 1 and Fig. 3) in the second cutter driving cover 185 of left side frame 134.

According to above structure, it is driven by extracting the making operation of clutch 115 to extracting portion 3, so that Second cutter 133 is acted together with the first cutter 15, using the first cutter 15 to the fringe for the not gathering in fringe stalk slightly side in field It is extracted, the fringe of the fringe stalk slightly side is inputted, and from feed room 11 to threshing portion 9 by grain from grain sorting mechanism 10 to paddy Grain case 6 takes out.On the other hand, the fringe stalk in field will be extracted by the first cutter 15 using the second cutter 133 and remaining Remaining plant (residual fringe stalk) is cut to appropriate height so that the remaining plant (stem root) in field is remained on after harvesting High unity is reduced to the height of constant.It is relatively low by the height of remaining plant for making to remain on field after harvesting, The post-treatment procedures (ploughing and weeding workability etc.) in field can be improved.

Next, with reference to Fig. 5 and Fig. 6, construction is transmitted to 63 grade power of gearbox and is illustrated.As shown in fig. 6, becoming Fast case 63 is provided with：The straight trip hydraulic continuously variable transmission 64 of speed change is travelled, there is straight trip pump 64a and straight trip motor 64b； And the convolution hydraulic continuously variable transmission 70 of steering, with rotary pumps 70a and convolution motor 70b.It is configured to：By tooth Wheel links pump shaft 259 of the transmission input shaft 66 of gearbox 63 respectively with the pump shaft 258 of straight trip pump 64a and rotary pumps 70a And they are driven.The speed change input belt wheel 169 of protrusion end side setting outside gearbox 63 in transmission input shaft 66 Band 67 is exported around engine is hung with.Band 67 is exported by engine and passes the output of engine 7 to speed change input belt wheel 169 It passs, thus straight trip pump 64a and rotary pumps 70a is driven.

It as shown in fig. 6, will be defeated from the output shaft 65 of engine 7 by engine output band 67 and transmission input shaft 66 The pump shaft 259 of the pump shaft 258 to straight trip pump 64a and rotary pumps 70a transmit the driving force gone out respectively.Straight trip hydraulic stepless speed change In device 64, using the power for being transferred to pump shaft 258, working oil is suitably sent into from straight trip pump 64a towards straight trip motor 64b. Similarly, it circles round in hydraulic continuously variable transmission 70, using the power for being transferred to pump shaft 259, by working oil from rotary pumps 70a directions Convolution motor 70b is suitably sent into.In addition, rotary pumps 70a pump shaft 259 install oriented straight trip pump 64a, straight trip motor 64b, The speed changer supply pump 151 of rotary pumps 70a and convolution motor 70b supply working oils.

Straight trip hydraulic continuously variable transmission 64 is grasped according to the rotation for being configured at the main shift lever 44 for manipulating column 41, control crank 43 The angle of inclination for the swash plate for adjusting straight trip pump 64a is changed as amount, thus to the row of the working oil towards straight trip motor 64b Outgoing direction and discharge rate change.As a result, from straight trip motor 64b protrude straight trip motor drive shaft 260 direction of rotation with And rotating speed is arbitrarily adjusted.

As shown in fig. 6, the rotary power of straight trip motor drive shaft 260 is from straight trip Transmission gear mechanism 250 to secondary gear teeth turbine Structure 251 transmits.Secondary change gear mechanism 251 has：It is carried out by the secondary transmission shifter (shifter) 252,253 to link each other The secondary speed change low-speed gear 254 of switching, secondary speed change intermediate gear 255 and secondary speed change high gear 256.Low speed becomes quick change with secondary Frequency modulator 252 is pivotally supported the stopping brake axis 265 (secondary speed change output shaft) in the outlet side positioned at secondary change gear mechanism 251.It is high Speed pair transmission shifter 253 is pivotally supported in the secondary counter shaft 270 for forming straight trip Transmission gear mechanism 250.By to configuration It is in low speed, middling speed or alternatively right between the gear in these three stages at a high speed in the operation for the secondary gear lever 45 for manipulating column 41 The output speed of straight trip motor drive shaft 260 switches over.In embodiment, neutrality is provided between the low speed of secondary speed change and middling speed Position (position that the output of secondary speed change is zero).

As shown in fig. 6, stopping brake axis 265 (secondary speed change output shaft) is provided with the parking brake 266 of drum-type.Come From the rotary power of secondary change gear mechanism 251 from being fixed in the secondary speed change output gear 267 of stopping brake axis 265 to the left and right Differential attachment 257 transmits.The differential attachment 257 of left and right has planetary gear mechanism 268 respectively.It is set on stopping brake axis 265 It is equipped with straight trip impulse generator 292.There is straight trip vehicle speed sensor the peripheral side of straight trip impulse generator 292 is arranged opposite 293 (with reference to Fig. 9).Using rotating speed of the vehicle speed sensor 293 of keeping straight on to straight trip output, (speed of also referred to as keeping straight on, secondary speed change export The speed change output of gear 267) it is detected.

As shown in fig. 6, each planetary gear mechanism 268 in left and right has respectively：One sun gear 271, it is defeated with secondary speed change Go out gear 267 to engage；Multiple planetary gears 272, they are engaged with sun gear 271；Ring gear 273, with planetary gear 272 engagements；And planet carrier 274, multiple planetary gears 272 are configured to rotate on the same circumference in the planet carrier 274. Left and right planet carrier 274 with separate the state at appropriate interval it is opposed be located at same axis on (aftermentioned central gear shaft 275 with And on the axis for forcing differential output shaft 277 of left and right).The sun gear 271 of left and right is fixed in the axial direction of central gear shaft 275 Two end sides.Central gear 276 is connected in the axial middle part of central gear shaft 275.

The state and sun gear that each ring gear 273 in left and right is engaged with multiple planetary gears 272 with the internal tooth of inner peripheral surface Axis 275 is configured to same heart shaped.The external tooth of each 273 peripheral surface of ring gear is by aftermentioned intermediate gear for controlling output of circling round 287th, 288 and with turn to output shaft 285 link.Each ring gear 273 in a manner of it can rotate with from the outside of planet carrier 274 The pressure differential output shaft 277 for facing left and right prominent to the left and right is chimeric.By final gear (final gear) 278a, 278b and by left and right axle 278 with control pressure differential output shaft 277 link.Axle 278 in left and right is equipped with Drive sprocket 51.Therefore, the rotary power of the transmission of planetary gear mechanism 268 from secondary change gear mechanism 251 to the left and right is with phase Equidirectional same rotational speed and from left and right axle 278 transmitted to each drive sprocket 51, and with the same rotational speed pair of the same direction The crawler belt 2 of left and right is driven, the movement so that travel machine body 1 is kept straight on and (advances, retreats).

Convolution hydraulic continuously variable transmission 70 is grasped according to the rotation for being configured at the main shift lever 44 for manipulating column 41, control crank 43 The angle of inclination for the swash plate for adjusting rotary pumps 70a is measured and changes, thus to the row of the working oil towards convolution motor 70b Outgoing direction and discharge rate change.As a result, from convolution motor 70b protrude convolution motor drive shaft 261 direction of rotation with And rotating speed is arbitrarily adjusted.Convolution impulse generator is provided on countershaft 280 (being hereinafter described in detail) is turned to 294.There is convolution vehicle speed sensor 295 (with reference to Fig. 9) the peripheral side of convolution impulse generator 294 is arranged opposite.Using return Rotation vehicle speed sensor 295 is detected the rotating speed (speed of also referred to as circling round) of convolution output.

As shown in fig. 6, it is provided in gearbox 63：The convolution brake 279 (steering brake) of wet multi-plate type, It is set on convolution motor drive shaft 261 (turning to input shaft)；Turn to countershaft 280, by upstream reduction gearing 281 with circle round horse Link up to axis 261；Output shaft 285 is turned to, is linked by downstream reduction gearing 286 with turning to countershaft 280；Left side inputs tooth Mechanism 282 is taken turns, is linked by counter gear 284 so that turning to output shaft 285 with left side ring gear 273；And right side Input gear mechanism 283 so that turn to output shaft 285 links with right circular gear 273.

The rotary power of convolution motor drive shaft 261 is transmitted via upstream reduction gearing 281 and to countershaft 280 is turned to.It is transferred to The rotary power of countershaft 280 is turned to, as the left side intermediate gear 287 and counter gear via left side input gear mechanism 282 284 reversion rotation power and ring gear 273 to the left transmits, on the other hand, as via right side input gear mechanism 283 Right side intermediate gear 288 rotating forward rotary power and ring gear 273 transmits to the right.

In the case where secondary change gear mechanism 251 is caused to be formed as neutral condition, power from straight trip motor 64b to the left and right The transmission of planetary gear mechanism 268 be prevented.In the gear being set as secondary change gear mechanism 251 other than neutrality In the case of, power is via secondary speed change low-speed gear 254, secondary speed change intermediate gear 255 or secondary speed change high gear 256 and from straight trip The planetary gear mechanisms 268 of motor 64b to the left and right transmit.

On the other hand, be formed as neutral (neutral) state in the output for causing rotary pumps 70a and cause convolution braking In the case that device 279 is formed as on-state, power from the transmission of convolution motor 70b planetary gear mechanisms 268 to the left and right by To prevention.Be formed as the state other than neutrality in the output for causing rotary pumps 70a and so that convolution brake 279 is formed as cutting In the case of disconnected state, the rotary power of convolution motor 70b via left side input gear mechanism 282 and counter gear 284 and Ring gear 273 transmits to the left, and on the other hand, via right side input gear mechanism 283, ring gear 273 passes to the right It passs.

When the motor 70b that circles round rotates forward (reversion), left side ring gear 273 and right circular gear 273 are each other with opposite The same rotational speed in direction is rotated, wherein, left side ring gear 273 inverts (rotating forward), and right circular gear 273 rotates forward (anti- Turn).That is, the speed change output of each motor drive shaft 260,261 is respectively via secondary change gear mechanism 251 or the differential attachment of left and right 257 and the drive sprocket 51 of crawler belt 2 to the left and right transmits respectively, thereby determined that the speed (travel speed) of travel machine body 1 with And direction of travel.

If that is, make convolution motor 70b stop and in the state of the 273 static fixation of left and right ring gear is caused to straight trip Motor 64b is driven, then with the identical rotating speed in left and right, sun gear 271 passes to the left and right for the rotation output for motor drive shaft 260 of keeping straight on It passs, and the crawler belt 2 of left and right is driven via planetary gear 272 and planet carrier 274 with the same rotational speed of the same direction, So that travel machine body 1 carries out straight trip traveling.

, whereas if make straight trip motor 64b stop and in the state of the 271 static fixation of left and right sun gear is caused to return Rotation motor 70b is driven, then using the rotary power for the motor drive shaft 261 that circles round so that left side ring gear 273 rotates forward (instead Turn) and right circular gear 273 is inverted (rotating forward).As a result, a side of the drive sprocket 51 of the crawler belt 2 of left and right carries out Forward rotation and the opposing party carry out retrogressing rotation, and travel machine body 1 is changed direction (the also referred to as convolution of letter ground, side turning) at this moment.

In addition, if the sun gear 271 of left and right is driven using the motor 64b that keeps straight on and utilizes the motor 70b that circles round The ring gear 273 of left and right is driven, then the speed of the crawler belt 2 of left and right generates difference, advance so as to travel machine body 1 or Retreat, also, with the radius of gyration of with being more than letter radius of gyration to the left or right side convolution (u turn).Convolution at this time half Diameter depends on the speed difference of the crawler belt 2 of left and right.In the traveling driving force state that crawler belt 2 to the left and right transmits always of engine 7 Under to the left or right side carries out convolution movement.

Next, with reference to Fig. 7, the hydraulic circuit construction of driving device is illustrated.In the hydraulic circuit of driving device 200 have：Straight trip pump 64a, straight trip motor 64b, rotary pumps 70a, convolution motor 70b and speed changer supply pump 151.Straight trip pump 64a and straight trip motor 64b is connected as loop-like by the first oil circuit 201a and the second oil circuit 201b of straight trip that keeps straight on.The first oil of straight trip Road 201a and the second oil circuit 201b of straight trip form straight trip closed circuit 201.Rotary pumps 70a and convolution motor 70b are by convolution the One oil circuit 202a and the second oil circuit 202b of convolution is connected as loop-like.Circle round the second oil circuit of the first oil circuit 202a and convolution 202b forms convolution closed circuit 202.Straight trip pump 64a and rotary pumps 70a is driven using the rotary power of engine 7 And the inclined plate angle of straight trip pump 64a, rotary pumps 70a are controlled, thus become more towards straight trip motor 64b, circle round motor 70b's The discharge direction and discharge rate of working oil so that straight trip motor 64b, convolution motor 70b forward and reverse action.

As shown in fig. 7, the hydraulic circuit 200 of driving device has：Straight travel valve 203, the manual behaviour with main shift lever 44 Accordingly switch over action；And straight trip cylinder 204, it is connect by straight travel valve 203 with speed changer supply pump 151.Such as Fruit causes straight travel valve 203 to switch over action, then performs following straight trip gear shifting operation：Straight trip cylinder 204 works and pumps 64a to straight trip Inclined plate angle change so that the rotating speed of the straight trip motor drive shaft 260 of straight trip motor 64b infinitely changes or inverts. In addition, the hydraulic circuit 200 of driving device is also equipped with the hydraulic servomechanism 205 of straight trip speed change.Utilize hydraulic servomechanism 205 perform through the inclined plate angle control for the pump 64a that keeps straight on and straight travel valve 203 reverts to the feedback action of neutral condition, make directly The inclined plate angle of row pump 64a and the manual operation amount of main shift lever 44 change proportionally to, thus the straight trip of change straight trip motor 60b The rotating speed of motor drive shaft 260.

On the other hand, the hydraulic circuit 200 of driving device has：Circle round valve 206, the manual operation with control crank 43 It is performed in accordance with switching action；And convolution cylinder 207, it is connect by convolution valve 206 with speed changer supply pump 151.If Convolution valve 206 is made to switch over action, then performs following left and right convolution action：Convolution cylinder 207 work and to the oblique of rotary pumps 70a Plate angle changes, so that the rotating speed of the convolution motor drive shaft 261 of convolution motor 70b infinitely changes or inverts, also, Travel machine body 1 change travel direction to the left and right and field furrow head uncultivated land into the transformation of line direction or to travelling route into Row is corrected.In addition, the hydraulic circuit 200 of driving device is also equipped with the hydraulic servomechanism 208 of convolution speed change.It is watched using hydraulic pressure Take that mechanism 208 is performed through the control of the inclined plate angle of rotary pumps 70a and feedback that convolution valve 206 reverts to neutral condition is moved Make, the inclined plate angle of rotary pumps 70a is made to be changed proportionally to the manual operation amount of control crank 43, thus change convolution motor The rotating speed of the convolution motor drive shaft 261 of 70b.

As shown in fig. 7, it is respectively connected in all oil circuit 201a, 201b, 202a, 202b of two closed circuits 201,202 Supply branch's oil circuit 219 (being hereinafter described in detail).It is set between supply branch oil circuit 219 and the first oil circuit 201a of straight trip It is equipped with the check valve (check valve) 211 for the first oil circuit 201a of straight trip.In supply branch oil circuit 219 and straight trip second The check valve 211 for the second oil circuit 201b of straight trip is provided between oil circuit 201b.Therefore, straight trip closed circuit 201 has two A check valve 211.In addition, it is provided between supply branch oil circuit 219 and the first oil circuit 202a of convolution for the first oil of convolution The check valve 212 of road 202a.It is provided between supply branch oil circuit 219 and the second oil circuit 202b of convolution for the second oil of convolution The check valve 212 of road 202b.Therefore, convolution closed circuit 202 also has two check valves 212.

Keeping straight on, the first oil circuit 201a and the second oil circuit 201b of straight trip is connected with straight trip bleed off circuit 213.It is bypassed in straight trip Oil circuit 213 is provided with straight trip side bidirectional relief valve 215.Circling round, the first oil circuit 202a and the second oil circuit 202b of convolution is connected with back Revolve bleed off circuit 214.Convolution bleed off circuit 214 is provided with convolution side bidirectional relief valve 216.Therefore, each closed circuit 201, 202 are provided with a bidirectional relief valve 215,216.

In addition, the suction side of speed changer supply pump 151 is connect with the coarse filter 217 in gearbox 63.In speed changer The discharge side of supply pump 151 is connected with supply and imports oil circuit 218.The downstream side that oil circuit 218 is imported in supply is connected with supply point Branch oil circuit 219.As described above, supply branch oil circuit 219 and all oil circuit 201a, 201b of two closed circuits 201,202, 202a, 202b are connected.Therefore, during the driving of engine 7, always to two supplements of closed circuit 201,202 from change The working oil of fast device supply pump 151.Supply branch oil circuit 219 is connect by straight travel valve 203 and with straight trip cylinder 204, also, by Convolution valve 206 and with convolution cylinder 207 connect.Branch oil circuit 219 is supplied by remaining overflow valve 220 and with aftermentioned stepless change Fast case 323 and gearbox 63 connect.Therefore, to come from by remaining overflow valve 220 and via infinitely variable transmission 323 The remaining working oil of speed changer supply pump 151 is returned into gearbox 63.

Next, with reference to Fig. 1~Fig. 3 and Fig. 8~Figure 13,43 grade driver behaviors of control crank construction is illustrated. As shown in Fig. 8~Figure 13, the operator for having composition bridge 5 takes the footrest frame 311 of riding leg rest flat part.Multiple Foot frame 312 erects the upper surface side for being set to travel machine body 1, and footrest frame 311 is provided in 312 upper end side of branch foot frame. Boarding pedal 313 is connected in the side of the branch foot frame 312 of the right side harvester outside portion of footrest frame 311, in boarding Operating oil tank 315 is configured with, also, in 1 upper surface of travel machine body, footrest frame 311 with the harvester inside portion of pedal 313 Hydraulic valve units body 314 is installed below front end.

In addition, having steering box 318, which has convolution input shaft 316 and main transmission input shaft 317.Case branch It holds and links between the branch foot frame 312 of the left and right of the 311 front lower surface side of both ends and footrest frame of transverse frame 319, turn to Case 318 fastens in a detachable manner is linked to approximate horizontal case bearing transverse frame 319.Steering box 318 is by case branch It holds transverse frame 319 and the surface of hydraulic valve units body 314 is supported on multilayer shape.Input shaft 316 circle round from steering box 318 Upper surface be provided projectingly upward, by steering shaft 321 will convolution input shaft 316 link with control crank 43, also, Main transmission input shaft 317 protrudes to the left side setting from the left side of steering box 318, will be main by main shift lever 322 Transmission input shaft 317 links with main shift lever 44.

According to preceding description：Footrest frame 311 is set to the upper end side of 312 groups of branch foot frame, in the pedal Bridge 5 (manoeuvre portion) on frame 311 is configured with main shift lever 44, the Yi Jizuo of the straight-ahead operation part as straight-ahead operation The control crank 43 of convolution operating parts for convolution operation.In the stabilizer blade frame in the left and right of 311 underside of forward of footrest frame It is set up between frame 312 and case bearing transverse frame 319 is installed.Case bearing transverse frame 319 be equipped with by main shift lever 44 with And the steering box 318 that control crank 43 and driving device (infinitely variable transmission 323 and gearbox 63) linkage link.Across steering Case 318 and have in the longitudinal direction there are two case support transverse frame 319.Also, support transverse frame using former and later two casees 319 pairs of steering boxs 318 support.It is equipped in addition, being equipped with and being directed in 1 forepart of travel machine body, steering box 318 lower section The hydraulic valve units body 314 of the hydraulic test (such as lifting hydraulic cylinder 4 etc.) of travel machine body 1.

According to the above records and Fig. 8~Figure 13 is clear that：In the branch in the left and right of 311 underside of forward of footrest frame It is set up between foot frame 312 and case bearing transverse frame 319 is installed, be equipped in case bearing transverse frame 319 by main shift lever 44 and control crank 43 and driving device (infinitely variable transmission 323 and gearbox 63) linkage connection steering box 318, because This, because case bearing transverse frame 319 there are due to can realize the rigidity of 1 forepart of travel machine body (particularly bridge 5 near) Raising.Transverse frame 319 is supported using the case for undertaking the effect strengthened the forepart of travel machine body 1, it can be with Gao Gang Property supports steering box 318.Therefore, the operating quantity of main shift lever 44 and control crank 43 and driving device (stepless change Fast case 323 and gearbox 63) output between will not generate significantly deviation, without worry, to become operator unexpected Transport condition.The case of reinforcement can be supported to the mounting portion that transverse frame 319 is also used as steering box 318, and without turning to Therefore 318 dedicated erecting bed of case, helps to inhibit cost.

Particularly, according to embodiment, it is equipped with to be directed in 1 forepart of travel machine body, steering box 318 lower section and be equipped on The hydraulic valve units body 314 of the hydraulic test (such as lifting hydraulic cylinder 4 etc.) of travel machine body 1, therefore, it is possible in bridge 5 Lower section, steering box 318 and hydraulic valve units body 314 rear ensures wide space, after can simply carrying out for example The laying of the hydraulic piping 329,347 stated etc..It also is able to realize the raising of the upkeep operation of hydraulic valve units body 314.

Has the infinitely variable transmission that straight trip hydraulic continuously variable transmission 64 and convolution hydraulic continuously variable transmission 70 assemble 323.Infinitely variable transmission 323 is fixed in the upper right of gearbox 63, and straight trip is configured in the front and rear surfaces of infinitely variable transmission 323 With and convolution each motion arm body 324.It is configured to：Straight trip use and convolution each motion arm body 324 respectively with turn The straight trip connection gonnecting rod body 345 and convolution connection gonnecting rod body 346 set to the back side of case 318 links, and passes through control crank 43 Steering operation and main shift lever 44 variable speed operation, to straight trip hydraulic continuously variable transmission 64 and convolution hydraulic continuously variable transmission 70 Action controlled, thus, it is possible to change the travelling route of left and right crawler belt 2 and movement speed.In addition, in infinitely variable transmission 323 Front lateral surface, as straight trip output control part straight movement control axis 325 towards front protrude, in infinitely variable transmission 323 Trailing outside face, the convolution control shaft 326 as convolution output control part are protruded towards rear.Although detailed figure is omitted Show, still, be linked with the motion arm body 324 (with reference to Fig. 8) of straight trip in straight movement control axis 325, link in convolution control shaft 326 There is the motion arm body 324 of convolution.

If Figure 12 is illustrated in detail, for linking using steering box 318 and as the convolution control shaft 326 of convolution output control part The convolution connection gonnecting rod body 346 of connection, is supported on the vertical pillar 327 supported to bridge 5.In this case, exist Bridge 5, side as driving device (infinitely variable transmission 323 and gearbox 63) nearby left side is configured with manipulation Column 41.Column 41 will be manipulated using vertical pillar 327 and driving device (infinitely variable transmission 323 and gearbox 63) links.It is specific and Speech, the upper end side for indulging pillar 327 link with the left side for manipulating column 41, indulge the lower end side of pillar 327 and the upper table of gearbox 63 Surface side links.Steering box 318 is installed in 1 forepart of travel machine body, bridge 5 lower section.Straight trip connection gonnecting rod body 345 and Convolution connection gonnecting rod body 346 extends from steering box 318 towards driving device (infinitely variable transmission 323 and gearbox 63) side.It returns The middle part of rotation connection gonnecting rod body 346 is supported on vertical pillar 327.In addition, straight trip connection gonnecting rod body 345 is supported on carrier frame plate 328, The carrier frame plate 328 erects the upper surface for being set to driving device (infinitely variable transmission 323 and gearbox 63).In embodiment, Carrier frame plate 328 erects the upper surface forepart for being set to infinitely variable transmission 323.The middle part of straight trip connection gonnecting rod body 345 is supported on The back side of carrier frame plate 328.Furthermore, it is possible to straight trip connection gonnecting rod body 345 is supported on vertical pillar 327, alternatively, by two connections Gonnecting rod body 345,346 is supported on vertical pillar 327.

According to the above records and Figure 12 is clear that：For steering box 318 and driving device (variable speed will be set to Case 323 and gearbox 63) convolution control shaft 326 (convolution output control part) linkage connection convolution connection gonnecting rod body 346, The vertical pillar 327 supported to bridge 5 is supported on, therefore, even to pass through driving device (infinitely variable transmission 323 And gearbox 63) vibration and cause flexure or stretching action in convolution link gonnecting rod body 346, can also utilize to bridge The 5 vertical pillars 327 supported support convolution connection gonnecting rod body 346 with high rigidity, so as to which convolution is inhibited to link Variation, the deformation of gonnecting rod body 346.Therefore, main shift lever 44, the operating quantity of control crank 43 and driving device (infinitely variable transmission 323 and gearbox 63) output between will not generate significantly deviation, without worry become the unexpected traveling of operator State.

As shown in Fig. 8~Figure 13, operating oil tank is configured in the lower right-hand side of the footrest frame of quadrangle 311 when looking down 315, be configured with infinitely variable transmission 323 below the left side of footrest frame 311, also, footrest frame 311 lower front with Upper and lower multilayer shape and be configured with hydraulic valve units body 314 and steering box 318, therefore, it is possible to easily via operating oil tank 315 with The space that is formed between infinitely variable transmission 323 and the hydraulic pressure of engine 7 (work oil pump 348), front at 318 rear portion of steering box Hydraulic piping is carried out between the hydraulic test (lifting hydraulic cylinder 4) of valve cell body 314, operating oil tank 315 and each section It is extended, further, it is possible to improve upkeep operation of hydraulic test etc..

As shown in Fig. 8~Figure 13, steering box 318 is configured in the lower lateral front of bridge 5, in the lower section of steering box 318 The hydraulic valve units body 314 for the hydraulic test (such as lifting hydraulic cylinder 4 etc.) for being equipped on travel machine body 1 is configured with, The rear of bridge 5 is configured with engine 7.The downside of bridge 5 (311 downside of footrest frame), by steering box 318, hydraulic pressure The region configuration that valve cell body 314, driving device (infinitely variable transmission 323 and gearbox 63) and engine 7 surround is useful In the operating oil tank 315 and hydraulic piping of working oil that storage is supplied to hydraulic test (such as lifting hydraulic cylinder 4 etc.) 329、347。

In embodiment so that operating oil tank 315 is located at the lower right-hand side of footrest frame 311.Start so that will be set to Hydraulic piping 329 that the work oil pump 348 and operating oil tank 315 of machine 7 link and by operating oil tank 315 and hydraulic valve units The hydraulic piping 329 that body 314 links is located at below the left side of footrest frame 311.In addition, with left and right below footrest frame 311 Across mode be configured with by speed changer supply pump 151 and the upper surface side of infinitely variable transmission 323 connection hydraulic piping 347. It is configured in the region of 5 downside of bridge to the working oil in driving device (infinitely variable transmission 323 and gearbox 63) The oil filter 349 being filtered.Oil filter 349 is located at the middle part of hydraulic piping 347, and Suspending fixation is in footrest frame 311 Lower right side.

According to the above records and Fig. 8~Figure 13 is clear that：The downside of bridge 5, by steering box 318, hydraulic valve The region that cell cube 314, driving device (infinitely variable transmission 323 and gearbox 63) and engine 7 surround, which is configured with, to be used for Store the working oil supplied to hydraulic test (such as lifting hydraulic cylinder 4 etc.) operating oil tank 315 and hydraulic piping 329, 347, therefore, dead angle as 5 downside of bridge can not only be effectively served as steering box 318 and hydraulic valve units body 314 configuration space, additionally it is possible to be effectively served as the configuration space of operating oil tank 315 and hydraulic piping 329.Therefore, It is closer to each other by the way that hydraulic valve units body 314, operating oil tank 315 and hydraulic piping 329,347 are configured to, it can realize liquid The densification of pressure system.It also is able to the configuration space for being avoided to ensure operating oil tank 315 and combine harvester is caused to maximize.

Particularly, according to embodiment, it is configured in the region of 5 downside of bridge to driving device (variable speed Case 323 and gearbox 63) in the oil filter 349 that is filtered of working oil, it is therefore, it is possible to shorten that driving device is (stepless Gearbox 323 and gearbox 63) and the length of hydraulic piping 347 that links of oil filter 349, the laying of hydraulic piping 347 become It obtains simply.It can will be with being configured at the downside of bridge 5 in the relevant part set of hydraulic pressure, so as to additionally aid assembling operation, dimension Protect the raising of workability.

The explanation of reference numeral

1 travel machine body

7 engines

63 gearboxes

64 straight trip hydraulic continuously variable transmissions

70 convolution hydraulic continuously variable transmissions

311 footrest frames

312 foot frames

313 boarding pedals

314 hydraulic valve units bodies

315 operating oil tanks

318 steering boxs

319 casees bearing transverse frames

323 infinitely variable transmissions

325 straight-ahead operation axis

326 convolution operating shafts

327 vertical pillars

328 carrier frame plates

329th, 347 hydraulic piping

345 straight trip connection gonnecting rod bodies

346 convolution connection gonnecting rod bodies

348 work oil pumps

349 oil filters

Claims (4)

1. a kind of combine harvester, has：

Driving device, the driving device carry out speed change and traveling portion to the left and right to the power for being equipped on the engine of travel machine body Transmit the power；

The straight-ahead operation part of straight-ahead operation；

The convolution operating parts of convolution operation；And

Steering box, the steering box change behaviour according to the operating quantity of two operating parts to the output of the driving device Make,

Be configured with the driving device and the steering box in the forepart of the travel machine body, the travel machine body forepart, Manoeuvre portion positioned at the side of the driving device is configured there are two the operating parts, wherein,

For the connection gonnecting rod body for linking the steering box with the output control part linkage for being set to the driving device, by it It is supported on the vertical pillar supported to the manoeuvre portion.

2. combine harvester according to claim 1, which is characterized in that

Side near the manoeuvre portion, described driving device is configured with manipulation column, the manipulation column and the driving dress It puts and is linked by the vertical pillar, the steering box is installed below the travel machine body forepart, described manoeuvre portion so that The connection gonnecting rod body extends from the steering box towards the driving device side, and the middle part of the connection gonnecting rod body is supported In the vertical pillar.

3. combine harvester according to claim 2, which is characterized in that

The driving device, which has, carries out the power of the engine straight trip hydraulic continuously variable transmission of speed change and convolution liquid Contiuously variable transmission is pressed, as the output control part, there is the straight trip output control for the straight trip hydraulic continuously variable transmission Portion and the convolution output control part for the convolution hydraulic continuously variable transmission, as the connection gonnecting rod body, have and institute It states the straight trip connection gonnecting rod body of straight trip output control part connection and links with the convolution for circling round output control part connection and connect The middle part that the convolution links gonnecting rod body is supported on the vertical pillar by the body of rod.

4. combine harvester according to claim 3, which is characterized in that

The straight trip connection gonnecting rod body is supported on carrier frame plate, and the carrier frame plate standing is set to the upper surface of the driving device.