CN103392448A - Combine-harvester - Google Patents

Abstract

The invention provides a combine-harvester, for accurately carrying out steering operation of a machine body (2) and height adjustment of a raking reel (10) without fault, is provided with a steering tower (30) installed on the front of the operating section (5) on which right and left arranged steering lever (31) for steering the machine body and an operating lever (32) for vertical operation of the raking reel provided on the reaping section, are installed.

Description

Combine

Technical field

The present invention relates to possess the combine of advance body and the reaping part that are equipped with Drive Section.

Background technology

Known in the combine of said structure have a following combine: for the Level Change corresponding to crop harrows wording depth, carry out lift adjustment and with hydraulic cylinder, rake is held together reel, by the switching knob on the holding part that is arranged on main shift lever with finger manipulation, make and harrow the reel lifting and switch action (for example, with reference to Japanese kokai publication hei 11-28944 communique) with the electromagnetic type control valve that hydraulic cylinder is connected.

According to above-mentioned prior art scheme, though can harrow trippingly by finger manipulation the height adjusting of reel, but be arranged on due to this switching knob on the holding part of main shift lever, so there is such danger, namely, when carrying out the operation of main transformer speed, because being not intended to the contact-making switch knob, hand cause rake to hold together the reel lifting.Especially, for the operator who lacks driving experience, easily carry out such operation that is not intended to.

In addition, in above-mentioned prior art scheme, because the solenoid electric valve that utilizes high price holds together as rake the hydraulic valve that the reel lifting is used, so, can cause the cost of hydraulic system to increase, and, wish to supply with clean especially action oil for solenoid electric valve is suitably moved, thereby need to spend time at hydraulic system maintenance management aspects such as oil strainer maintenance and filter replacements.

Summary of the invention

The present invention makes in view of problem as described above, and its purpose is accurately and to carry out reliably the manipulation of body and the height adjusting that rake holds together reel.

In order to achieve the above object, feature scheme of the present invention is, erect and be provided with control tower in the front portion of described Drive Section, left and right has been arranged side by side control stick and reel action bars on this control tower, described control stick is used for the described body of advancing is turned to, and described reel action bars is used for making the rake that is arranged at described reaping part hold together the reel lifting.

According to such scheme, when while gathering in, advancing, the driving operation person can set the body direct of travel by the manipulation bar, and can regulate the wording depth that rake holds together reel by the height corresponding to crop by operation reel action bars, by control stick and the reel action bars that is equipped with side by side about change of grip, the actuated height with harrowing reel of selector is regulated fast.In addition,, if use two hands, can also carry out simultaneously the height adjusting that body is handled and rake holds together reel.

At this moment, rake holds together reel action bars that the reel lifting uses and erects setting as bar independently, thus need to have a mind to carry out holding operation, can make a mistake unlike switching knob operation or because of neglectful contact can be by simple operations.

Therefore, can realize easily that body turns to and harrows the reel height and regulate accurately and reliably.

In a preferred embodiment, on the left and right directions of the described body of advancing, described reel action bars is provided in the outside of described control stick.This scheme has following advantage.

For example, while carrying out the repair and maintenance etc. of reaping part stopping body, sometimes want lifting to harrow reel.This moment, the operator's that the reel action bars is easily got off from body hand touched.Therefore,, even no longer upper to Drive Section, also can carry out descending operation from ground in the face of rake holds together reel.

In addition, preferably, described reel action bars is erect and is arranged than described control stick lowland.

, according to such scheme, be that the frequency of utilization of control stick is higher than the frequency of utilization of reel action bars substantially in harvesting, in addition, due to manipulation bar only in mobile advancing, so the reel action bars is difficult for affecting the operation of control stick, and is outstanding aspect operation convenience.In addition, by making the bar height, form differently, even if fast operating also is difficult for occurring to grip mistake.

In a preferred embodiment, described reel action bars is arranged to and can be swung along fore-and-aft direction, operate this reel action bars by the place ahead to neutral position, make described rake hold together reel and carry out down maneuver,, by the described reel action bars of the operation of the rear to neutral position, make described rake hold together reel and carry out vertical motion.

According to such scheme, it is corresponding that the operation feeling of reel action bars and rake hold together the lifting action direction of reel, so, be not prone to the mistake of direction of operating, can fast wording depth be adjusted to desired height.

In a preferred embodiment, described control stick be arranged to can be along left and right and fore-and-aft direction swing, by this control stick of direction operation to the left and right, carrying out body towards the bar direction of operating turns to, and, operation forward by described control stick descends described reaping part, and the backward operation by described control stick rises described reaping part.

According to such scheme, can by left and right control stick arranged side by side and reel action bars carry out along the crop row the body manipulation operations, change corresponding reaping part descending operation and with plant height or rake corresponding to lodging situation, hold together the reel descending operation with the harvesting height that causes such as concavo-convex by field, the change of grip of bar is carried out with the while processing ease.

In addition, the first hydraulic valve connecting rod of described reaping part and the hydraulic cylinder that makes this reaping part lifting links, and, described rake holds together reel and the second hydraulic valve connecting rod of this hydraulic cylinder of harrowing the reel lifting is linked, and described the first hydraulic valve and the second hydraulic valve are set up in parallel the inside at described control tower.Like this, has following advantage.

According to this scheme, two hydraulic valves can utilize the spool-type selector valve of the cheapness of manual operation mode.The transfer valve of manual operation formula, even because of the impact etc. of action well cuts what to the mobile resistance that produces of guiding valve, as long as the slightly large operating physical force of effect and carry out handover operation, deimpurity impact also can disappear, so, needn't be when utilizing solenoid electric valve the cleaning of attention action oil.

In addition,, by being equipped with side by side two hydraulic valves, easily with the Pressure oil feeder system of these hydraulic valves and from the pipe arrangement of the oil draining system of hydraulic valve oil extraction, put together.

In addition, the rotating fulcrum that rotates by the swing of direction forwards, backwards of described control stick is arranged at the inside of described control tower crossbearer, this rotating fulcrum and described the first hydraulic valve connecting rod link, and, by described reel action bars is become flexible and is entrenched on described rotating fulcrum, this reel action bars and described the second hydraulic valve connecting rod link.Like this, has following advantage.

According to this scheme, the rotating fulcrum of control stick can be also used as the fulcrum shaft of reel action bars, effective to the simplification of bar supporting structure.

In a preferred embodiment, be provided with guidance panel for main shift lever and secondary gear lever at described Drive Section, be provided with in the courses of action of described secondary gear lever be used to the parking spot that makes the parking brake action.This scheme has the following advantages.

In combine, adopted is such scheme more, that is, the positive reaction force of the secondary gear by gear type after to the main transformer speed variator speed change that consists of the hydrostatic stepless speed change device carries out many grades of speed changes and regulates gait of march, in the transmission downstream of secondary gear, is provided with brake.This brake carries out braking maneuver by the operation of stepping on of special-purpose pedal, by pedal is locked to remain on to step on position, is set as dead ship condition (for example with reference to TOHKEMY 2002-295719 communique).

In above-mentioned prior art scheme, come the brake off device to advance just remove the pedal entered into and to lock, if but in the situation that forget that the brake off device carries out the start-up function of body, engine can stop and need to again starting.

With respect to this,, according to such scheme of the present invention, when advancing, secondary gear lever must be operated a certain shift position, so, be certain to leave and make parking brake carry out the parking spot of braking maneuver.

Therefore, can make the body starting in the situation that do not forget to remove parking brake.

In addition,, if described parking spot is adjacent to the low-speed position setting, when body starts, at first move to low-speed position after secondary gear lever is removed from parking spot, move to high speed position needs further intentionally secondary gear lever to be carried out move operation.Therefore, in careless, secondary gear lever is operated high speed position and the possibility of the anxious starting of body is diminished.

In addition, if the neutral position of allowing the transmission system idle running of advancing is set between the high speed position of above-mentioned secondary gear lever and described low-speed position, and, stop the idle running of the transmission system of advancing between low-speed position and described parking spot, for example in the situation that the sloping floor parking, secondary gear lever operating operation body between low-speed position and parking spot the time can not moved because of the deadweight landing, can be parked in reliably desired position.

In addition, if described parking brake is constituted, the change gear of secondary gear be fixed on transmission case and stop the rotation of the transmission system of advancing, can be made into without the parking brake that slippage occurs brake simple in structure, that parts are few and cheap.

In a preferred embodiment, the described body of advancing is supported by crawler travel device, and, the track takeup of this crawler travel device possesses: to crawler belt apply tension force crawler tension wheel, support this crawler tension wheel the tensioning framework, this tensioning framework is slided and the adjusting thread spindle that described tension force is regulated, the support that screws the threaded body on this adjusting thread spindle and lock this threaded body, and, be provided with play between described support and threaded body, described play is used for allowing that this threaded body fascinates with respect to described tensioning framework., according to this scheme, have the following advantages.

In track takeup, regulating the thread spindle rotation is bearing in freely on track frame and screws on the tensioning framework, regulate thread spindle by rotating operation, and by regulating thread spindle, carry out move operation, the tensioning framework is slided along the rail portion of track frame, thus, crawler tension wheel moves with respect to track frame, and the rate of tension of crawler belt is increased and decreased adjusting.

As this track takeup, for example disclosed device of Japanese Patent Publication 2-126984 communique is arranged.In the prior art scheme, the frame section (being equivalent to the tensioning framework) that supports crawler tension wheel with regulating wheel support axle is entrenched on the track frame main body rearward end of (being equivalent to track frame) (being equivalent to rail portion) sliding freely.Across the regulating wheel support of frame section and the screw thread support of track frame main body, adjusting threaded rod (being equivalent to regulate thread spindle) is installed.And, regulate the screwed part that is fixedly installed on the regulating wheel support of threaded rod and frame section and screw.

In above-mentioned prior art, if the rail portion of track frame and and the chimeric tensioning framework of this rail portion between chimeric play become large, when rotating operation is regulated thread spindle, the tensioning framework can produce with respect to track frame loosening, produce skew thus between the threaded portion of regulating thread spindle and tensioning framework, the heavy or situation about can't carry out of rotating operation change of thread spindle easily occurs to regulate.Thereby, in order easily and to carry out efficiently the rate of tension adjusting of crawler belt, need can be brisk and swimmingly rotating operation regulate thread spindle, thereby need to improve the making precision of track frame and tensioning framework so that make the rail portion of track frame and the tensioning framework chimeric with loosening minimum state.

With respect to this, in such scheme of the present invention, when rotating operation is regulated thread spindle, locking support by the tensioning framework locks the support thread body, thereby threaded body is with respect to regulating the thread spindle rotation, the move operation that acceptance is undertaken by the adjusting thread spindle, and move with respect to rail portion together with the tensioning framework, the tensioning framework moves along the rail portion of track frame.At this moment, even produce loosening slightly between tensioning framework and rail portion, allow that owing to locking support threaded body fascinates and makes threaded body fascinate with respect to the tensioning framework with respect to the tensioning framework, thereby can be because of the loosening skew of regulating thread spindle and threaded body that causes of tensioning framework yet, the tensioning framework can slide swimmingly and makes crawler tension wheel to the increase side of track tension or reduce side shifting, and, can be easily and swimmingly rotating operation regulate thread spindle and crawler tension wheel moved adjusting.

Therefore, when the tensioning of carrying out crawler belt is regulated, can be easily and carry out lightly and smoothly regulating efficiently the rotating operation of thread spindle, and can, to allow producing loosening slightly thicker making precision between the rail portion of track frame and tensioning framework, make at an easy rate acquisition track frame and tensioning framework.

In a preferred embodiment, be provided with the grain recoverer at the rear of described Drive Section, erect and be provided with supporting frame in the front portion of described grain recoverer, on the top of this supporting frame, fuel tank is installed.This scheme has the following advantages.

Be provided with in the combine of grain recoverer at the rear of Drive Section, for example as disclosed in TOHKEMY 2002-95331 communique, fuel tank is arranged on the After-Body below.Or as disclosed in TOHKEMY 2000-262133 communique, be provided in the pedal below of Drive Section.

In such prior art scheme, though can be by making fuel make up easily carry out on the lower position that fuel tank is arranged on body, but be in lower position due to fuel tank with respect to engine, therefore need to equip the electrodynamic type supply pump in the fuel feed system from the fuel tank to the engine, cost so and corresponding raising.

In addition, in order to know the residual volume of fuel, and liquid level sensor is set in fuel tank, arranges mechanically or the fuel meter that electric means is connected with this sensor on the guidance panel of Drive Section etc., this also can increase cost.

With respect to this, according to such scheme of the present invention, fuel tank is arranged on the high position of ratio engine, thereby can supply fuel to by conducting oneself with dignity dirty engine.

Therefore, can save for the supply pump from fuel tank to the engine feed fuels, can correspondingly reduce costs.

In addition; if will possess pack links and is bearing on described supporting frame and formation grain recoverer with the grain bunker of outlet; the firm supporting frame of supporting grain bunker can be used for the supporting of fuel tank, thus the reduction that realizes cost that shares by parts.

In addition, if the upper surface of the upper surface of described fuel tank and described grain bunker is set and is become roughly the same height, when fuel tank is carried out fuel make up, supply can be placed on fuel tank or grain bunker with container and carry out like a cork replenishment operation.

In addition,, if liquid level perspective formula fuel quantity ga(u)ge is set on the lateral surface of described fuel tank, need not liquid level sensor and fuel meter, can effectively reduce costs.

In addition, if the outstanding hook-type supporting arm of bending upward that arranges on described supporting frame, described fuel tank is snapped in and is bearing on this supporting arm from top, and by the supporting strap that hangs across supporting frame and supporting arm, from top with fuel tank, be pressed into and fix, can keep fuel tank with supporting arm, even thereby the large large capacity fuel tank of weight also can reliably firmly support.

And, if will cover the hood of described engine constitutes and can rotate and open wide to the body lateral outer side, above the rotary motion trace of this hood, described fuel tank is set, can opens wide hood and open wide significantly engine room by swing, the maintainability around engine be excellent.

Below, carry out following explanation by the reference accompanying drawing, further feature scheme of the present invention and by advantageous effect and effect that this feature scheme plays, will become clear.

In the following description, as long as no different offering some clarification on, " right side " and " left side " when " right side " and " left side " refer to is watched combine from front.

Description of drawings

Fig. 1 is the left side view of the combine of first embodiment of the invention.

Fig. 2 is the vertical view of combine.

Fig. 3 is the right side view of combine.

Fig. 4 is kinematic scheme.

Fig. 5 is the end view of reaping part.

Fig. 6 means that rake holds together the front view of the part of reel.

Fig. 7 is the vertical profile rearview of rotation switching mechanism.

Fig. 8 is the front view of cropping knife drives structure.

Fig. 9 is the vertical view that rake holds together the reel speed changing structure.

Figure 10 is the end view that rake holds together the reel speed changing structure.

Figure 11 is the rearview of bar operating structure.

Figure 12 is the end view of bar operating mechanism.

Figure 13 is the vertical profile front view of Drive Section.

Figure 14 means the stereogram of dustproof conduit upper.

Figure 15 is the vertical profile front view of transmission case.

Figure 16 means the vertical profile front view of secondary gear and parking brake.

Figure 17 is the vertical profile front view of sidepiece clutch.

Figure 18 is the end view of variable speed operation structure.

Figure 19 is the vertical profile front view of gear lever base portion.

Figure 20 is the vertical view of gear lever operating portion.

Figure 21 is the vertical view of transmission case.

Figure 22 is the decomposition side view of control valve installation portion.

Figure 23 is the end view of crawler travel device integral body.

Figure 24 is the enlarged side view at Figure 23 rear portion.

Figure 25 is the end view of track takeup.

Figure 26 is the longitudinal section of track takeup.

Figure 27 is the vertical view of track takeup.

Figure 28 is the cutaway view of upper track frame.

Figure 29 is the exploded perspective view of track takeup.

Figure 30 means track takeup, corresponding with Figure 29 exploded perspective view of other structure.

Figure 31 is the left side view of the combine of second embodiment of the invention.

Figure 32 is the vertical view of combine.

Figure 33 is the right side view of combine.

Figure 34 is the end view of Drive Section.

Figure 35 is the front view of Drive Section.

Figure 36 is the end view of Drive Section periphery.

Figure 37 is the vertical profile front view of Drive Section.

Embodiment

Below, describe with reference to accompanying drawing each preferred embodiment to combine of the present invention.Any embodiment is based on all that ordinary combine harvester as an example of combine describes.

Said " ordinary combine harvester " refers to drop into the whole bar of harvesting straw and carries out the combine of the type that threshing processes, and also is referred to as whole stalk feeding type combined harvester.With respect to this, the combine that the fringe point side of harvesting straw is carried out the type of threshing processing is called " half feed type combine harvester " on one side with on one side by the feeding chain, the strain root side of harvesting straw being carried out clamping/conveyings, but the part of following illustrated structure is also general for half feed type combine harvester.

[the first embodiment]

At first, referring to figs. 1 through Figure 30, the first embodiment is described.

Fig. 1 is the left side view of ordinary combine harvester integral body, and Fig. 2 is vertical view, and Fig. 3 is right side view.

This combine, possessing on the body 2 of advancing of pair of right and left crawler travel device 1, and left and right is equipped with the sheller unit 3 of axial flow type and the grain recoverer 4 of pack formula abreast, and, Drive Section 5 is equipped with in the place ahead of grain recoverer 4.Front portion at sheller unit 3, link in the mode that swings up and down around fulcrum P freely the feeder 6 that harvesting straw conveying use is arranged, linking and having and the body transverse width reaping part 7 of suitable harvesting width roughly at the front end of this feeder 6, and, water-cooled engine 8 laterally is equipped with below Drive Section 5.

Set up hydraulic cylinder 9 between the bottom of the front portion of the body 2 of advancing and feeder 6, by the expanding-contracting action of this hydraulic cylinder 9, reaping part 7 with feeder 6 integratedly around described fulcrum P oscillating lifting.Be equipped with rake in the front upper of reaping part 7 and hold together reel 10, this is harrowed reel 10 and rearward harrow and hold together the straw that also pull-up is planted.

Reaping part 7 possesses: the pair of right and left that constitutes the longitudinal wall shape is divided the reaping apparatus 12 of standing grain framework 11, hairclipper type, the straw of gathering in laterally is fed to the middle auger conveyor 13 of harvesting width and connects left and right divide the bottom runout table 14 each other of standing grain framework 11.Feeder 6 is taken in to hold together conveyer 16 and form by tubular conveying box 15 inside that connect in front and back.Should on hold together conveyer 16 and link conveying lever 16b by the left and right chain 16a crossbearer across vertically reeling and form, the straw of laterally being given by auger conveyor 13 along the bottom surface of conveying box 15 by on hold together to carry, and be put to the front end of sheller unit 3.

above-mentioned auger conveyor 13 is provided with the helical wing plate 18 of left and right on the periphery of auger conveyor cylinder 17, this auger conveyor cylinder 17 is along downward certain orientation is driven in rotation from the place ahead, the helical wing plate 18 of this left and right is laterally given the harvesting straw towards the front end inlet of feeder 6, and, above-mentioned auger conveyor 13 is on circumferential four positions with the opposed cylinder outer peripheral portion of described front end inlet, be equipped with and give prominence to each a pair of rake of left and right of keeping out of the way action along with drum rotating and hold together to refer to 19, the straw that to gather in relative broad range is laterally given and collaborates in the middle of harvesting width along runout table 14, and with rake, hold together to refer to 19 front end inlet of forcing rake to hold together to supply to feeder 6.

At the periphery of auger conveyor cylinder 17 position of keeping right, be equipped with in addition right side helical wing plate 18 laterally give the zone of action in the auxiliary rake that moves hold together to refer to 20, be poured in the place ahead that the front end inlet from feeder 6 is positioned at auger conveyor 13 along the section laterally left on runout table 14 straw by assist rake hold together to refer to 20 rakes hold together to helical wing plate 18 laterally give the zone of action, and be transported to rake by the effect of laterally giving of helical wing plate 18 and hold together to refer to 19 the zone of action.

Described rake holds together reel 10 and is bearing in the front portion that swings up and down pair of right and left supporting arm 21 freely around cardinal extremity fulcrum a via frame support bracket 22 axles, can be by by hydraulic cylinder 23, supporting arm 21 being swung up and down, hold together wording depth and change the rake of harrowing reel 10, and, can be by along supporting arm 21 slidable adjustment frame support brackets 22 and front and back are regulated rake and held together active position.As shown in Fig. 9,10, frame support bracket 22 is by manual slidable adjustment, and, by connecting pin 26 being inserted in the connect apertures 25 that possesses on a plurality of positions, front and back of leading to the connect apertures 24 that possesses on frame support bracket 22 and supporting arm 21, and frame support bracket 22 is fixed.

as shown in Figures 5 and 6, rake holds together reel 10 to be possessed: via frame support bracket 22 by the reel driving shaft 76 of horizontal stand on the supporting arm 21 of left and right, link the regular pentagon reel framework 77 that is fixed on these reel driving shaft 76 left and right, with the prong installation shaft 78 of mode horizontal stand between five tops, place of left and right reel framework 77 that can rotate, many rakes that are arranged on side by side on prong installation shaft 78 hold together with prong 79, rotate supported freely regular pentagon auxiliary drum framework 80 etc. centered by the eccentric axle center c that rearward departs from driving axle center b by with respect to reel framework 77, be attached at each top of described auxiliary drum framework 80 from the terminal part pivot suspension of the end of each prong installation shaft 78 limit rotation arm 33a securing elongated towards rear, when reel framework 77 rotates (revolution) centered by driving axle center b, with it in linkage, auxiliary drum framework 80 is synchronously servo-actuated rotation centered by eccentric axle center c, thus, each prong installation shaft 78 with respect to reel framework 77 towards the direction opposite with the reel direction of rotation synchronously rotation rotate, thereby, the prong 79 of each prong installation shaft 78 is kept all the time posture down and is revolved round the sun mobile, the performance rake holds together effect.

Below, the structure that the described hydraulic cylinder 9 that operation reaping part lifting is used and rake hold together the described hydraulic cylinder 23 that the reel lifting uses describes.

As Fig. 2 and as shown in Figure 13, be provided with the box type engine hood 28 that covers described engine 8 at Drive Section 5, be equipped with on this Engine Casing 28 and drive seat 27, and, erect and be provided with box-like control tower 30 in the place ahead of driving seat 27.as Figure 11, as shown in Figure 12, in these control tower 30 inside, be arranged side by side via support plate 39: the side valve type hydraulic valve that the reaping part lifting is used (being equivalent to the first hydraulic valve) V1, hold together with rake side valve type hydraulic valve (being equivalent to the second hydraulic valve) V2 that the reel lifting is used, and, left and right is erect side by side to be provided with and is carried out above control tower 30 that body turns to and the control stick of reaping part lifting 31, with the reel action bars 32 of harrowing the reel lifting, control stick 31 mechanically links (being that connecting rod links) here with hydraulic valve V1, reel action bars 32 mechanically links (being that connecting rod links) here with hydraulic valve V2.Rake holds together reel action bars 32 that the reel lifting uses and is provided in than control stick 31 by body lateral outer side place, thereby hand easily touches reel action bars 32 from ground.And reel action bars 32 is set for lower than control stick 31.

Inside at control tower 30, can rotating fulcrum 33 being arranged around the mode crossbearer that horizontal axle center d rotates, at carriage 34 upper supports that are fixedly linked on this rotating fulcrum 33, control stick 31 is arranged, and, from rotating fulcrum 33, with the outstanding motion arm 35 that arranges of mode that can unitary rotation and the guiding valve s1 of hydraulic valve V1, via connecting rod 36 interlocks, link.By around horizontal axle center d swinging operation control stick 31, its operation being arrived the place ahead of neutral position N, the guiding valve s1 of hydraulic valve V1 is depressed, hydraulic cylinder 9 shortens, reaping part 7 carries out down maneuver, by control stick 31 operations being arrived the rear of neutral position N, the guiding valve s1 of hydraulic valve V1 is pulled up and makes hydraulic cylinder 9 elongations, and reaping part 7 carries out vertical motion.When control stick 31 was turned back to neutral position N, hydraulic cylinder 9 stopped expanding-contracting action, and the lifting of reaping part 7 stops.Control stick 31 can by front and back towards fulcrum e centered by be supported on carriage 34 with swinging, carry out as described later body by its left and right operation and turn to.

Rake holds together reel action bars 32 that the reel lifting uses with can be around the loosening chimeric described rotating fulcrum 33 that is supported on crossbearer of the mode that horizontal axle center d rotates, and from its bar cardinal extremity propeller boss 32a, with the outstanding motion arm 37 that arranges of mode that can unitary rotation and the guiding valve s2 of hydraulic valve V2, via connecting rod 38 interlocks, links.By around horizontal axle center d swinging operation reel action bars 32, its operation being arrived the place ahead of neutral position N, the guiding valve s2 of hydraulic valve V2 is depressed, and hydraulic cylinder 23 shortens, and rake holds together reel 10 and descends.Otherwise by 32 operations of reel action bars being arrived the rear of neutral position N, the guiding valve S2 of hydraulic valve V2 is pulled up and hydraulic cylinder 23 is extended, rake holds together reel 10 and rises, when reel action bars 32 was turned back to neutral position N, hydraulic cylinder 23 stopped expanding-contracting action, and the lifting that rake holds together reel 10 stops.

As Figure 13, as shown in Figure 14, fuel tank 90 is equipped with above described Engine Casing 28, to be positioned at the mode of driving seat 27 rear sides,, and,, in the lateral outer side of Engine Casing 28, than hood upper surface, erect higher and be provided with aspirating air pipe 91.On aspirating air pipe 91, be provided with the air entry 92 of dedusting structure inwardly and outwardly, the extraneous air that has been cleaned through aspirating air pipe 91 is attracted the radiator 93 that imports in hood.Aspirating air pipe 91 can swing and open wide towards lateral outer side around the fulcrum h of bottom, by unlimited aspirating air pipe 91, radiator 93 is exposed, and can carry out the maintenances such as the supply of cooling water and cleaning., to the outstanding upper inner that is arranged on aspirating air pipe 91 of cover 94 of the font of コ down that covers from the outstanding oil-feed port 90a that arranges of fuel tank 90 upper surfaces, by swinging, open wide aspirating air pipe 91 oil-feed port 90a is exposed.

Then, the drive mechanism of engine power described.

As shown in Figure 4, from the power of engine 8, assign to advance system and operating system, the power of advance system is with and is delivered to main speed-changing mechanism 41 via the main clutch 40 with tension type.Main speed-changing mechanism 41 consists of Hyaulic infinite variable speed mechanism (HST), from the forward (advancing) of these main speed-changing mechanism 41 outputs or the variable-speed dynamic of counter-rotating (retreating), is imported into transmission case 42.The power that is imported into transmission case 42 carries out two grades of speed changes of height by the secondary gear 43 of gear type, afterwards, is branched off into via pair of right and left sidepiece clutch 44 on the axletree 45 of left and right, thereby passes to the crawler travel device 1 of left and right.

Sidepiece clutch 44 constitutes the hydraulic operation formula, and the hydraulic control valve V3(of operation left and right sidepiece clutch 44 is with reference to Figure 11) by described control stick 31 around front and back towards swinging of carrying out of fulcrum e and be operated.When control stick 31 is positioned at the neutral position, left and right, the sidepiece clutch 44 equal " joint " of left and right, thereby straightaway, by to left or right-hand manipulation bar 31, be operated sidepiece clutch 44 "off" of side, only one-sided crawler travel device 1 drives, thereby the body 2 of advancing is turned to the direction of operating of control stick 31.Sidepiece brake SB and sidepiece clutch 44 link, while continuing further to fall control stick 31 after disconnecting sidepiece clutch 44, the sidepiece brake SB of the side that sidepiece clutch 44 is disconnected carries out braking maneuver, thereby the crawler travel device 1 that driving has been disconnected is applied braking, carry out body by pivot turn (pivot stud) and turn to.

The power of the operating system that branches out from engine power, via the threshing clutch 50 with tension type band be delivered to sheller unit 3 power shaft, be on wind axle (winnowing-fan shaft) 51.Be delivered to the power on wind axle 51, further be branched off into two systems in the body left side, part branch power is delivered to via driving-belt 55,56 a thing that sheller unit 3 possesses and laterally gives a helical axis 52 of use, secondary spiral axle 53 that the secondary thing is laterally given use and swing separatory vessel driving shaft 54 etc., and, branch's power of another part is delivered to the power shaft 58 of the bevel gear box 57 that is provided in sheller unit 3 front portions via driving-belt 59,, by changed the power of direction by bevel gear box 57, drive and process cylinder 60.

The power shaft 58 of bevel gear box 57 and crossbearer link via driving-belt 63 interlocks that the harvesting clutch 62 with tension type acts at the feeder driving shaft 61 of described feeder 6 cardinal extremities,, by the power that is delivered on feeder driving shaft 61, drive as following and hold together conveyer 16, auger conveyor 13, reaping apparatus 12 and harrow reel 10.

Crossbearer is supported with jackshaft 65 on the right side, back of reaping part 7, the right part of the left part of this jackshaft 65 and feeder driving shaft 61 links via chain 66 interlocks, and the right part of jackshaft 65 links via chain 68 interlocks with the auger conveyor driving shaft 67 that is projected into reaping part 7 right sides.

Be equipped with rotation switching mechanism 70 near the right-hand member of jackshaft 65, this rotation switching mechanism 70 is converted to around front and back the rotation around horizontal axle center of jackshaft 65 towards the reciprocating rotation in axle center.As shown in Figure 7, rotation switching mechanism 70, by with embedding outside can dallying inclination propeller boss 72 freely around the mode that inclination axle center f rotates, being arranged on the tilt head 71 that links with jackshaft 65, and via york piece 73, power transmission shaft 74 is attached at a pair of fulcrum pin 72a and upward forms, this a pair of fulcrum pin 72a is arranged on the periphery diagonal position of this inclination propeller boss 72.By the rotation of jackshaft 65 around horizontal axle center, make the positive and negative yaw action of the inclination axle center f of described inclination propeller boss 72, thereby, make via fulcrum pin 72a and york piece 73 and the power transmission shaft 74 that links with these inclination propeller boss 72 interlocks with the predetermined angular reciprocating rotation.

As shown in Figure 8, described power transmission shaft 74 divides the lateral surface of standing grain framework 11 to extend to front lower place along right side, the swing arm 75 and the described reaping apparatus 12 that are attached at power transmission shaft 74 front ends link via linking connecting rod 75a interlock, by the reciprocating rotation of power transmission shaft 74, the cropping knife 12a of reaping apparatus 12 is back and forth driven with certain stroke left and right.

On the base portion right side that is equipped with the supporting arm 21 of harrowing reel 10, be provided with one heart relay axis 81 with the cardinal extremity fulcrum a of supporting arm 21, this relay axis 81 and auger conveyor driving shaft 67 link via chain 82 interlocks, and relay axis 81 and reel driving shaft 76 link via driving-belt 83 interlocks.Be equipped with side by side the drive pulley 84b of large diameter drive pulley 84a and minor diameter on relay axis 81, on the other hand, possess on reel driving shaft 76 single driven pulley 85 is arranged,, by driving-belt 83 being changed on any that hangs in drive pulley 84a, 84b, can hold together reel 10 to rake and carry out two grades of speed changes of height.

It is suitable with the centre position, left and right of drive pulley 84a, the 84b of outfit arranged side by side that the setting position of driven pulley 85 on axis direction set for, no matter selects which drive pulley 84a, 84b, and driving-belt 83 can be reeled with the state of turning round slightly extension.

A pair of idler roller 87 acts on the slack-side path of driving-belt 83, described a pair of idler roller 87 is arranged on and swings the application of force by quilt and can be on the tensioner arm 86 of fulcrum g oscillation, bending by 87 pairs of driving-belts 83 of these idler rollers is reeled, and can change irrespectively suitably tightening belt with the front and back position of harrowing reel 10.

Below, with reference to Figure 15 to Figure 17, the interior of above-mentioned main speed-changing mechanism 41 and transmission case 42 is at length described.

What main speed-changing mechanism 41 adopted is the Hyaulic infinite variable speed mechanism of known configurations, namely, at the gearbox 151 that is bonded together and thick plate-like port piece (ポ ー ト Block ロ ッ Network) between 152, take in the variable displacement pump 41P of axial piston type and the constant volume type motor 41M of axial piston type, by the internal oil passages that is formed at port piece 152 (not shown), pump 41P and motor 41M are communicated with.Be passed with engine power on pump shaft 153 as power shaft, and, will be delivered to transmission case 42 from the variable-speed dynamic of motor drive shaft 154 outputs as output shaft.

Lateral outer side link at gearbox 151 has pump case 155.In this pump case 155, be assembled with the supply pump CP by the concentric trochoid type that drives of extension of pump shaft 153., from the discharge oil of supply pump CP, after the oil strainer 156 that is installed in gearbox 151 upper surfaces purifies, via the internal oil passages 157 in tank wall, supply to the supply oil circuit (not shown) that is formed at port piece 152.

The discharge oil mass of pump 41P and to discharge direction be that Angulation changes by swash plate 158 changes, carry out the variable speed operation axle 159(of angular adjustment of this swash plate 158 with reference to Figure 18) and the main shift lever 160(that is assemblied in Drive Section 5 with reference to Figure 18) connecting rod link as described later.

Crossbearer is supported with the first axle 161, jackshaft 162, the second axle 163 and the above-mentioned axletree 45 of pair of right and left in above-mentioned transmission case 42, across the first axle 161 and jackshaft 162, is equipped with above-mentioned secondary gear 43.Be fixed with on the first axle 161 with the case inner end that is arranged on motor drive shaft 154 on the input gear G2 of output gear G1 engagement, and spline is equipped with one and is equipping the secondary speed change change gear SG of small-diameter gear G3 and large diameter gear G4.At the loosening chimeric change-speed gearing CG that is supported with of the left and right of jackshaft 162 central portion, this change-speed gearing CG is by the large footpath change-speed gearing G5 that can mesh with above-mentioned small-diameter gear G3 and integrated the forming of path change-speed gearing G6 that can mesh with above-mentioned large diameter gear G4.By making change gear SG select small-diameter gear G3 to be engaged to large footpath change-speed gearing G5 to right-hand movement in figure, present " low speed " the position L shown in Figure 16 (a), by making change gear SG move and select large diameter gear G4 to be engaged to path change-speed gearing G6 to left in figure, present " at a high speed " position, by change gear SG being moved to not the centre position with change-speed gearing CG engagement, and present " neutrality " position.

An axle supporting portion at the first axle 161 that is equipped with change gear SG, be equipped with parking brake PB.This parking brake PB, will fix with the transmission downstream of this change gear SG engagement interlock by the rotation that stops change gear SG, and structure is as follows.

On the lateral surface of large diameter gear G4 in change gear SG, the outstanding engaging pawl 165 that is provided with, and change gear SG can more move to engaging pawl projected direction than above-mentioned " low speed " position.On the other hand, the chimeric keep plate 166 that is fixed on the case sidewall is equipped with opposed to each other on the axle supporting portion of the first axle 161, from axis direction and change gear SG.When change gear SG more moves to engaging pawl projected direction than " low speed " position, present the " STOP " position P shown in Figure 16 (b), above-mentioned engaging pawl 165 engages with the lock hole 167 that is formed at keep plate 166, and the rotation of change gear SG is stoped.At this, even under the engaging pawl 165 of change gear SG and state that keep plate 166 engages, also can keep the engagement of small-diameter gear G3 and large footpath change-speed gearing G5, the transmission system in the transmission downstream that will link with change-speed gearing CG engagement is fixed, thereby crawler travel device 1 is fixing.

In the left and right of jackshaft 162, becoming flexible the chimeric clutch gear G7 that forms sidepiece clutch 44 that is supported with along the mode that axis direction slides.On the second axle 163, the loosening chimeric a pair of output gear G8 that meshes with each clutch gear G7 that is supported with., by clutch gear G7 is slided to the inside, with the internal-gear G9 engagement that is formed at above-mentioned change-speed gearing CG center, become " clutch engages " state., by clutch gear G7 is slided laterally, obtain " clutch disconnection " state that breaks away from from above-mentioned internal-gear G9.Generally, by outer embedding, be arranged on spring 168 on jackshaft 162, towards " clutch joint " direction to each clutch gear G7 slip application of force.No matter clutch gear G7 wider width,, at " clutch joint " or when " clutch disconnection ", can both mesh with output gear G8 all the time.

Each output gear G8 one is attached on the loosening chimeric middle small-diameter gear G10 that is supported on the second axle 163, and, in the middle of each, small-diameter gear G10 meshes with the large footpath reduction gearing G11 that is fixed on each axletree 45 medial ends respectively, from the power of each output gear G8 output, by deceleration, is delivered on left and right axletree 45.

Therefore, when left and right sidepiece clutch 44 all is in " clutch joint " state, export the power of constant speed from the output gear G8 of left and right, left and right crawler travel device 1 is driven with constant speed, thus straightaway.When one-sided sidepiece clutch 44 is in " clutch disconnection " state, be cut off towards the transmission of power of one-sided crawler travel device 1, only drive opposite side crawler travel device 1, turn to thereby carry out body.

As shown in Figure 17, shaft hub 169 extends towards the outside from each clutch gear G7, and embedding is fixed with operation panel 171 outside these shaft hub 169 upper splines, and the slip movement toward the outer side of described operation panel 171 is stopped ring 170 and stops.Be equipped on the wall of transmission case 42 with the opposed annular piston 173 of this operation panel 171 across thrust bearing 172.Annular piston 173 is by the supply of force feed and turnover laterally is mobile, thus bulldozing operation plate 171, the active force that overcomes spring 168 make clutch gear G7 laterally, namely to clutch, disconnect direction and slide.

Be provided with the sidepiece brake SB that acts on above-mentioned clutch gear G7 near the left and right end portions of jackshaft 162.This sidepiece brake SB consists of many plates friction brake, this many plates friction brake alternately overlaps on axis direction have the friction plate 175 that is fastened on shaft hub 169 peripheries and the friction plate 177 that is fastened on 176 interior weeks of rigid bearing case, clutch gear G7 crosses " clutch disconnection " position and while further sliding laterally, the friction plate 175 that operation panel 171 crimping overlap, 177 and clutch gear G7 is applied friction catch.

Therefore, when the clutch gear G7 of a side slides and while arriving " clutch disconnection " position laterally, drive crawler travel device 1 idle running of a side that has been disconnected, carry out slowly body turn (shallowing turn).When this clutch gear G7 continued to slide laterally, the crawler travel device 1 of a side that driving has been disconnected by sidepiece brake SB was braked, and carries out pivot turn (pivot stud).

Below, with reference to Figure 18 to Figure 22, the operating structure of above-mentioned main speed-changing mechanism 41, secondary gear 43 and sidepiece clutch 44 is described.

Erect and be provided with control tower 30 in driving seat 27 the place aheads of Drive Section 5, and, be equipped with sidepiece guidance panel (example of guidance panel) 182 in the left side of driving seat 27, this sidepiece guidance panel 182 is used for operating the main shift lever 160 of above-mentioned main speed-changing mechanism 41 and the secondary gear lever 197 of secondary gear 43.As shown in figure 18, be provided with carriage 184 on the supporting frame 183 of supporting sidepiece guidance panel 182, on this carriage 184 can bar cardinal extremity parts 185 being installed around the mode that horizontal fulcrum B rotates.In the upper end of these bar cardinal extremity parts 185 with can be around front and back towards the fulcrum C left and right mode of fascinating link above-mentioned main shift lever 160 arranged.As shown in figure 20, main shift lever 160 can be formed on high infraversion malposition shape handle hole (examples of the courses of action of main shift lever) 186 swinging operation forwards, backwards on sidepiece guidance panel 182 along opening.

The other end of above-mentioned bar cardinal extremity parts 185 and the variable speed operation arm 187 that is attached at the jag of above-mentioned variable speed operation axle 159, link by pull bar 188 interlocks, when main shift lever 160 is in " stopping " position of the end difference that is set in handle hole 186, above-mentioned swash plate 158 becomes the angle with pump shaft 153 quadratures, pump 41P does not discharge, and motor 41M stops.When main shift lever 160 was operated into the forward operation path in the place ahead from " stop position ", swash plate 158 was to the positive direction angle corresponding with the bar operational ton of fascinating, and force feed is discharged to positive direction, motor drive shaft 154 forwards, the speed change of advancing.When main shift lever 160 was operated into the back operation path at rear from " stopping " position, swash plate 158 was to the opposite direction angle corresponding with the bar operational ton of fascinating, and force feed is by to discharging in the other direction, and motor drive shaft 154 counter-rotatings, retreat speed change.

As shown in figure 19, be equipped with the butterfly spring 189 that the rotation of bar cardinal extremity parts 185 is applied frictional resistance on above-mentioned horizontal fulcrum B.This frictional resistance is set for larger than the variable speed operation counter-force of coming via pull bar 188 transmission from variable speed operation axle 159, thus, main shift lever 160 frictions can be remained on arbitrarily on operating position.

The pulsation of above-mentioned variable speed operation axle 159 by hydraulic pressure etc. acts on whirling vibration, in order to suppress the transmission of this vibration to main shift lever 160, at the shock absorber that is provided with rubber type or spring midway 190 of pull bar 188.

As Figure 16 and shown in Figure 180, operate the shift fork 191 of the above-mentioned change gear SG of secondary gear 43, supported being fixed on the mode that the fulcrum 192 on transmission case 42 slides along crossbearer, the motion arm 193 that engage with this shift fork 191 is supported freely around the fulcrum d of fore-and-aft direction swing via operating axis 194.Four positions of axis direction on fulcrum 192 are formed with locating slot 195, and shift fork 191 can stably remain on " at a high speed ", " neutrality ", " low speed " and " STOP " position.

As shown in Figure 20, be provided with the handle hole 186 of above-mentioned main shift lever 160 on above-mentioned sidepiece guidance panel 182, and, be provided with the handle hole (examples of the courses of action of secondary gear lever) 196 of linearity on by the position of driving seat 27 at this handle hole 186, than the short secondary gear lever 197 of main shift lever 160 from handle hole 196 outstanding arrange in case can before and after operation.This pair gear lever 197, being supported on above-mentioned carriage 184 around the mode that horizontal fulcrum e swings, links via action bars 199 interlocks from the extended motion arm 197a of bar cardinal extremity with the action bars 198 that is attached at aforesaid operations axle 194 outer ends.

In the courses of action of secondary gear lever 197, be set with " at a high speed " position H that the movement while being suitable for non-operation is advanced at its rear, be set with " neutrality " position N in H the place ahead, in the place ahead more, be provided with and be suitable for " low speed " position L that operation is advanced, be provided with " STOP " position P in forefront.When secondary gear lever 197 was moved to " STOP " position P from " low speed " position L, as described above, change gear SG kept the engagement with change-speed gearing CG engagement, and not there will be idling conditions.Therefore, while such as stopping advancing, hanging up parking brake PB on the inclined-planes such as ramp, body can be because of the deadweight landing.

As Figure 21 and shown in Figure 22, link control valve V is arranged on transmission case 42, this control valve V is to force feed controlling to row to the annular piston 173 that operates left and right sidepiece clutch 44.Transmission case 42 constitutes the left and right segmenting structure, and control valve V is attached on the seat surface 42a that forms across the composition surface of transmission case 42 via liner 201 and intermediate plate 102 bolted.The port one 04 of force feed for row's port one 03 and on being connected seat surface 42a that is formed on the installed surface of control valve V is communicated with connection, and, encircle 105 at its connecting portion by O shape and carry out oil sealing.

The motion arm 106 of control valve V links via connect mechanism (not shown) and control stick 107 interlocks of erectting setting from above-mentioned control tower 30.When control stick 107 was positioned at the neutral position, left and right, left and right sidepiece clutch 44 all became " clutch joint " state, thereby carries out straightaway.When either side manipulation bar 107 to the left and right, the sidepiece clutch 44 that is operated side becomes " clutch disconnection " state, and only the driving by one-sided crawler travel device 1 makes the body 2 of advancing turn to the direction of operating of control stick 107.When further falling during control stick 107 opening operation sidepiece clutch 44 is rear, the sidepiece brake SB action of the side that sidepiece clutch 44 is disconnected, the crawler travel device 1 that driving is disconnected applies braking, and the body that carries out as described above pivot turn (pivot stud) turns to.Above-mentioned control stick 107 constitutes and can carry out the cross operation all around, and, the control valve of control stick 107 and hydraulic cylinder 9 (not shown) links, make above-mentioned hydraulic cylinder 9 be undertaken under reach by the operation forward of control stick 107, reaping part is descended, hydraulic cylinder 9 extends action by its backward operation, makes reaping part increase.

Below, the detailed construction of crawler travel device 1 is described.

As shown in figure 23, crawler travel device 1 comprises: track frame 213 is supported in via a pair of link framework 212 in front and back on the body framework 2A of the body 2 of advancing; Ground connection roller 214, a plurality of positions on the fore-and-aft direction that is bearing in freely this track frame 213 that dallies; Crawler driving whell 216, be bearing on the transmission case 42 of being located at above-mentioned body framework 2A; Track takeup 220, possess and be positioned near the crawler tension wheel 221 in above-mentioned track frame 213 rear ends; Upper roller 218, idle running are bearing on the supporting frame 217 that extends out from the pars intermedia of above-mentioned track frame 213 freely; And endless track 219, being wound on above-mentioned each wheel body 214,216,218,211, rubber is made.

When the transmission of power from engine 8 arrives transmission case 42, by march forward side or retreat sideway swivel of this drive force crawler driving whell 216, thus, endless track 219 is driven by crawler driving whell 216 when by crawler tension wheel 221, keeping the regulation tensioning state, along march forward side or retreat side and rotate of each ground connection roller 214, upper roller 218, crawler tension wheel 221.

As shown in figure 23, above-mentioned track frame 213 possesses: the bottom track frame 213a that above-mentioned each ground connection roller 214 is supported and the cornue shape upper track frame 213b that is attached at this bottom track frame 213a upside.As shown in figure 28, above-mentioned upper track frame 213b forms by two bending panel beating 213c are combined into a cornue shape and carry out welding.

As shown in Figure 24, Figure 25 etc., track takeup 220 comprises: by above-mentioned upper track frame 213b form and the rail portion 222, the front that are arranged on above-mentioned track frame 213 rearward end be embedded in this rail portion 222 and sliding freely supported tensioning framework 223, via fulcrum union body 224 and fulcrum 225 idle running be bearing in freely this tensioning framework 223 rearward end above-mentioned crawler tension wheel 221 and across being arranged on the screw thread supporting mass 226 on upper track frame 213b and being arranged on the adjusting thread spindle 228 that the threaded body 227 on tensioning framework 223 is installed.

As Figure 25, Figure 27, shown in Figure 29, above-mentioned screw thread supporting mass 226 possesses: rotation is inserted freely and is connected with the screw thread axis hole 226a that is positioned at the hexagonal axis shape operating portion 228a that regulates thread spindle 228 leading sections and plays with the flange 228b butt of regulating thread spindle 228 the stop surface 226b that holds the gear effect around this screw thread axis hole 226a, the tension force that overcomes due to crawler belt 219 is applied to the load of regulating thread spindle 228 rear end side, holds and keeps off and support adjusting thread spindle 228.

To shown in Figure 27, above-mentioned threaded body 227 screws in the rear end side of regulating thread spindle 228 by female threaded hole as Figure 25.This threaded body 227 is by locking support (locking an example of the support of threaded body) 230 supportings that are arranged on tensioning framework 223 rearward end, together with respect to the rail portion 222 of track frame 213, move with tensioning framework 223, and, not with respect to 223 rotations of tensioning framework, and then, fascinate a little with respect to tensioning framework 223.

That is to say, in track takeup 220, regulate thread spindle 228 with the screw thread supporting mass 226 of track frame 213 as reaction member, overcome the tension force of crawler belt 219 and via threaded body 227, tensioning framework 223 remained on adjusting position, thus, crawler tension wheel 221 is maintained on the installation site of regulation, and crawler belt 219 tensioning operations are become the tensioning state of regulation and keep this state.At this moment, mounting or dismounting spline body 231 freely is arranged on the operating portion 228a that regulates thread spindle 228, the hexagon spline hole 231a(of spline body 231 is with reference to Figure 29) engage with operating portion 228a, the bent sheet 231b(of spline body 231 is with reference to Figure 29) with screw thread supporting mass 226 butts and by spline, thus the spline of regulating thread spindle 228.In addition, as Figure 25, as shown in Figure 27, be arranged on the operating portion 228a that regulates thread spindle 228 by the locking pin 232 that will install and remove freely, and prevent coming off of branch turning body 231.

For the tension force to crawler belt 219 is regulated, pull down spline body 231 and locking pin 232 from the operating portion 228a that regulates thread spindle 228, rotate this operating portion 228a.So, regulating thread spindle 228 rotates, as reaction member, threaded body 227 forwards or is rearward moved the screw thread supporting mass 226 of track frame 213, thus, tensioning framework 223 in company with threaded body 227 together along rail portion 222 forwards or rear move.At this moment, even produce a little loosening between tensioning framework 223 and rail portion 222, because threaded body 227 thereupon fascinates with respect to tensioning framework 223, so can not produce skew between adjusting thread spindle 228 and threaded body 227 yet, regulate thread spindle 228 thereby can easily rotate swimmingly, tensioning framework 223 is carried out move operation.By the movement of tensioning framework 223, when crawler tension wheel 221 forwards moved with respect to track frame 213, the rate of tension of crawler belt 219 reduced, and on the contrary, when crawler tension wheel 221 rearward moved with respect to track frame 213, the rate of tension of crawler belt 219 increased.

As Figure 25 to Figure 27, as shown in Figure 29, the locking support 230 of tensioning framework 223 comprises: be fixedly installed on tensioning framework 223 rearward end and above-mentioned threaded body 227 can be accommodated in the keeper 233 in reception hole 233a, the above-mentioned fulcrum 225 that is fixedly installed on tensioning framework 223 at these keeper 233 rears and the rear locking body 234 on above-mentioned fulcrum union body 224 and from the outside mounting or dismounting of above-mentioned keeper 233, embed freely the front locking body 235 of installing.Be provided with on rear locking body 234 and front locking body 235 for above-mentioned adjusting thread spindle 228 and insert logical screw thread axis hole 234a, 235a.

Namely, lock in support 230, the gear effect of holding is worked in threaded body 227 rear surfaces that 234 pairs of rear locking bodies are accommodated in keeper 233, threaded body 227 front surfaces that 235 pairs of front locking bodies are accommodated in keeper 233 work the gear effect of holding, double thread body 227 locks supporting thus, can with tensioning framework 223 together with respect to rail portion 222 forwards, backwards direction move.In addition, lock in support 230, keeper 233 around threaded body reception hole 233a double thread body 227 around work the gear effect of holding, stop like this threaded body 227 to rotate with respect to tensioning framework 223.And, lock support 230 by play (circulation) slightly is set respectively between front locking body 235, rear locking body 234 and keeper 233 and threaded body 227, and allow threaded body 227 to fascinate slightly with respect to tensioning framework 223, absorb tensioning framework 223 becoming flexible with respect to rail portion 222.

Above-mentioned track takeup 220 also can adopt such as shown in figure 30 structure.

In the situation that track takeup 220 shown in Figure 30, the fulcrum 225 of crawler tension wheel 221 directly is attached at the rearward end of tensioning framework 223.In addition, the rear locking body 234 of locking support 230 is attached on fulcrum 225 and tensioning framework 223.In addition, lock horizontal side and the upper surface link of keeper 233 with the tensioning framework 223 of support 230.

[the second embodiment]

Below, with reference to Figure 31 to Figure 37, the second embodiment of combine of the present invention is described.

, drive seat 27 and be arranged on the hood 326 of case shape to shown in Figure 35 as Figure 31, the engine 8 that this hood 326 will be equipped on the body framework 2A of the body 2 of advancing is surrounded.

Stopped up by side plate 328 between sidepiece guidance panel 182 and driving pedal 327.This side plate 328 is edge and 182 threaded connections of sidepiece guidance panel in the top only, and the lower edge 328a that folds of side plate 328 is pressed into and locks on driving pedal 327, and the back edge 328b of side plate 328 is pressed into locking by hood 326.

Above-mentioned grain recoverer 4 constitutes pack and reclaims the mode of grain, possesses: the grain bunker 332 that will be stored up by the grain after sheller unit 3 sortings, locks and keeps collection bag 333 bag accept excellent 334 and operation table top 335 etc.

Grain bunker 332 is bonded the top of a pair of supporting frame 336 in front and back that is bearing in slave body frame 2A setting setting, a pair of outlet 338 that possesses spool valve 337 before and after its bottom is provided with.Bag accept corresponding each outlets 338 of rod 334 respectively before and after a horizontal cantilever shape configuration over the ground, a plurality of collection bags 333 are inserted into that bag is accepted on rod 334 and the supporting that is draped.

Outboard end at operation table top 335 is equipped with tall auxiliary mesa 339, this tall auxiliary mesa 339 can swing switch to the work posture that is connected with operation table top 335 and roughly vertical erect pack up posture.Take in the pack operator of operation table top 335 and tall auxiliary mesa 339, be loaded into successively outlet 338 belows with being arranged on a bag collection bag 333 of accepting on rod 334 from collection bag nearby, the sealing purseful collection bag 333 upper end open securing member (not shown) and it is accepted rod from bag 334 takes, the collection bag of purseful 333 is placed on tall auxiliary mesa 339 temporarily or is placed in farm.Extend the gear waist arm 340 that is provided with for standing in pack operator on table top and lean on health from the supporting frame 336 of front side.

With reference to Figure 36 and Figure 37, the front side supporting frame 336 that is supported with grain bunker 332 links up pair of right and left pillar frame 336a to form by using lower transverse frame 336b, 336c, and the horizontal frame 336c of downside links with the right flank of sheller unit 3 to inboard prolongation of body.Outstandingly towards the place ahead on the top of each pillar frame 336a be provided with crooked upward hook supporting arm 341, on this supporting arm 341 from above snap in and be supported with fuel tank 342.Snap in the fuel tank 342 of supporting, by the supporting strap 343 that hangs across supporting frame 336 and supporting arm 341 terminal parts, be pressed into fixing from top.

The fuel that flows out by deadweight via supply pipe 344 from fuel tank 342, through being mounted the separator 345 that is bearing on supporting frame 336 and flowing in fuel filter 346, the clean fuel that has been removed after moisture and impurity flows down the fuel-injection pump 330 that is supplied to engine 8.The remainder of the fuel of discharging from fuel-injection pump 330 turns back to the top of fuel tank 342 via recurrent canal 347.

As the engine 8 that is surrounded by hood 326, what adopt is to erect in lateral outer side the water-cooled horizontal arrangement type diesel engine that is provided with radiator 348, and the extraneous air that is imported into via the aspirating air pipe section 349 that is arranged on continuously hood 326 lateral outer side is supplied to radiator 348.Above-mentioned aspirating air pipe section 349 constitutes the lengthwise case shape higher than hood 326 upper surfaces, and, be formed with air entry 350 with Air Filter at its lateral outer side face, through air entry 350 and by dedusting extraneous air attracted by radiator fan 348a and be directed into radiator 348, cooling, air discharging after radiator 348 flows out to the body inboard, is taken a breath in engine room inside thus.

Hood 326 constitutes, and, by centered by the fore-and-aft direction fulcrum h by its lower end, outside and towards lateral outer side, swing to open wide, engine room can be opened wide significantly, and fuel tank 342 is configured in the top of these hood 326 rotary motion trace.

Fuel tank 342 constitutes box-shaped with sheet metal structural, surface gives prominence to by the lateral outer side position supply mouth 342a that is provided with cap thereon, and, be equipped with the fuel quantity ga(u)ge 351 of upper and lower side and case internal communication on the lateral outer side face of fuel tank 342, this fuel quantity ga(u)ge 351 consists of transparent pipe, can be from outside fluoroscopic observation level of fuel.The upper surface of fuel tank 342 is configured to the height roughly the same with grain bunker 332 upper surfaces of grain recoverer 4, when carrying out fuel make up, can mention refueling container and place it on fuel tank 342 or grain bunker 332.

Install and be supported with the air cleaner 352 that is connected with pipe arrangement with the suction system of engine 8 on the supporting frame 336 of front side.Air intake duct 353 extends upward from air cleaner 352, at its end, precleaner 354 is installed, and will be acted as a fuel with air supply to engine 8 by the clean air after precleaner 354 and air cleaner 352 dedustings.The air intake duct 353 that possesses precleaner 354 is inserted and lead to and erects in the space that is arranged on formation between sheller unit 3 and grain bunker 332, links and is bearing on the side of grain bunker 332.

About other structure, due to roughly the same with the first embodiment, therefore the description thereof will be omitted.

[other embodiment]

The above is illustrated each preferred embodiment of combine of the present invention, but the present invention is not limited to such scheme.For example, can be also following such scheme.

(1) can be also such embodiment, that is, above-mentioned hydraulic cylinder 23 be carried out Position Control, make rake hold together reel 10 and be elevated to the height corresponding with the operating position of above-mentioned reel action bars 32.That is to say, in the opereating specification of reel action bars 32, the end of decline side is corresponding with the decline extreme lower position that rake holds together reel 10, the end of uplifted side is corresponding with the rising extreme higher position that rake holds together reel 10, when operation reel action bars 32 between both ends, make rake hold together reel 10 liftings and stop at the height corresponding with the operating position of reel action bars 32.

(2), as parking brake PB, also can utilize multi-plate friction brake or the shoe brake of internal expanding.

(3), as main speed-changing mechanism 41, also can utilize many grades of gears of gear type or the gear of other type.

(4) in the second embodiment, also can adopt following such scheme.

For example, also fuel tank 342 can be bearing on supporting frame 336 in the mode that can slidingtype moves up and down, thus, fuel tank 342 can be dropped to lower position and carry out fuel make up.In addition, also can not use grain bunker 332, but higher grain case (not shown) is bearing on above-mentioned supporting frame 336, form grain recoverer 4.In addition, also can arrange by transparent resin plate or the lengthwise window of glass plate capping on the side of the fuel tank 342 of sheet metal structural, thereby form the fuel quantity ga(u)ge 351 of liquid level Clairvoyant type.In addition, in order to make structure, more simplify, can also form fuel tank 342 with the semi-transparent resin material that can have an X-rayed from outside level of fuel, with the fuel quantity ga(u)ge of whole case side as the liquid level Clairvoyant type.

Finally, in order easily to carry out with the reference of accompanying drawing having added corresponding Reference numeral in the bracket of claims, still, adding of these Reference numerals can not be interpreted as the present invention is defined in illustrated scheme.

Claims (3)

1. a combine, possess the body of advancing (2) and the reaping part (7) that are equipped with Drive Section (5), it is characterized in that,

Take in described Drive Section (5) and be equipped with engine (8), at the rear of described Drive Section (5), be provided with grain recoverer (4),

Be provided with fuel tank (342) between the driving seat (27) of described Drive Section (5) and described grain recoverer (4),

Erect and be provided with supporting frame (336) in the front portion of described grain recoverer (4), on the top of this supporting frame (336), described fuel tank (342) is installed,

Be provided with the fuel quantity ga(u)ge (351) of liquid level perspective formula at the lateral surface of described fuel tank (342).

2. combine as claimed in claim 1, is characterized in that, crooked hook supporting arm (341) is outstanding upward is arranged on described supporting frame (336), upper from top, the snapping in of this supporting arm (341), is supported with described fuel tank (342),

Hang supporting strap (343) across described supporting frame (336) and described supporting arm (341), utilize this supporting strap (343), be pressed into fixing described fuel tank (342) from top.

3. combine as claimed in claim 1 or 2, it is characterized in that, described engine (8) is covered by hood (326), and this hood (326) constitutes and can rotate and open wide towards the body lateral outer side, and described fuel tank (342) is configured in the top of described hood (326) rotary motion trace.

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