JP2002335734A - Layout of combine harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve such problems that smooth taking over actions cannot conven tionally be performed because the efficiency of cooling actions of a loaded engine is bad and waste straws sticking to grain culm plant feet cause trouble when reaped grain culms are taken over from a reaping pretreating device to a threshing device in a combine harvester. SOLUTION: This layout of the combine harvester is obtained by making a terminal end of a grain culm transporting device 6 face from the side of the reaping pretreating device 5 to the starting end of a feed chain 4 of the threshing device 3 loaded onto a traveling car body 2 with a grain culm feed port 1 on the front side, composing a grain culm taking over part 7 loading an engine 9 onto the lower side of a maneuvering seat 8 arranged in the lateral side of the starting end of the threshing device 3 on the traveling car body 2, installing a suction blasting fan 10 between the maneuvering seat 8 and the threshing device 3 and composing an arrangement so as to blow cooling air sucked from the side of the engine 9 on the grain culm taking over part 7.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combine layout, and more particularly to an arrangement of a threshing device, a control seat, an engine, a traveling transmission device, a continuously variable hydraulic transmission, a harvesting transmission to a harvesting frame, and the like. The present invention belongs to a technical field related to a configuration and a function improvement of a grain culm inheriting portion using an engine cooling wind.

[0002]

2. Description of the Related Art Conventionally, a traveling transmission device of a combine is provided with a hydraulic continuously variable transmission mounted on a right side of an upper portion of a transmission case, and the rotational power transmitted through the hydraulic continuously variable transmission is changed. Is once transmitted to the mission case, and is then transmitted to a mowing device (including a grain stalk raising device and a grain stalk transport device). Therefore, since the mowing device is driven at a rotation speed synchronized with the running speed, there is an advantage that the harvesting and the transport speed corresponding to the running speed are secured, and an excellent feature that the work efficiency can be set based on the running speed. There is.

[0003] In the conventional combine, as a generally known arrangement, a cooling fan is mounted on a cooling air intake side of an engine to cool while taking in air.

[0004]

Conventionally, a combine employs a structure in which a cooling fan for an engine is provided on a shaft on the intake side of the outside air, and cooling is performed while sucking outside air and blowing it to the engine. However, the exhaust after cooling cannot be used.

On the other hand, the threshing device attaches to the seed of the grain culm when the grain culm is inherited from the end of the grain culm conveying device to the beginning of the feed chain at the site where the harvested culm is inherited from the pre-cutting device. There was a problem that the swarf that was used as an obstacle could not provide a smooth inheritance function.

A conventional combine has an input pulley of a hydraulic continuously variable transmission to which power is input from an engine and a cutting frame to which cutting power is input from a traveling transmission device.
There is also a problem that maintenance such as replacement of a belt cannot be easily performed because the harvesting input pulley on the gear side is provided on a shaft at a position distant from the control seat.

[0007]

SUMMARY OF THE INVENTION The present invention takes the following technical means in order to solve the above-mentioned problems. First of all, the invention of claim 1 relates to a grain culm conveying device 6 from a cutting pretreatment device 5 side to a starting end of a feed chain 4 of a threshing device 3 mounted on a traveling vehicle body 2 with a grain culm supply port 1 facing forward. , The grain culm inheriting portion 7 is formed facing the terminal portion of the threshing device 3, and an engine 9 is mounted on the traveling vehicle body 2 below the control seat 8 disposed on the side of the starting end of the threshing device 3. In the combine, an intake fan 10 is provided between the control seat 8 and the threshing device 3 so that the cooling wind sucked from the engine 9 side is blown to the grain culm inheriting portion 7 as a combine layout. I have.

With the above-described structure, the invention according to claim 1 is an apparatus for pre-cutting the exhaust air, wherein the intake air blowing fan forcibly sucks the cooling air on the engine side to promote the cooling action. Spraying the grain cultivation portion supplying the harvested grain culm to the threshing device from the same to blow off the straw debris adhering to the base of the transported grain culm, thereby facilitating the transfer to the feed chain.

Next, a second aspect of the present invention relates to a grain stalk supply port 1.
The grain culm inheritance section 7 is formed by facing the end of the grain culm transport device 6 from the cutting pretreatment device 5 side to the starting end of the feed chain 4 of the threshing apparatus 3 mounted on the traveling vehicle body 2 with the front side as the front side. And
A step floor provided in the front lower part of the control seat 8 in a combine on the traveling vehicle body 2 in which an engine 9 is mounted below the control seat 8 disposed on the side of the starting end of the threshing device 3. A control frame 12 is disposed in the front-rear direction above and to the left of the control frame 11, and the control frame 12 is provided.
The input pulley 15 of the hydraulic continuously variable transmission 14 that is input from the engine 9 and the traveling transmission device 1 are provided outside the upper and lower spaces of the step 12 and the step floor 11 in a side view.
6 is a layout of a combine which is configured by arranging the reaping input pulley 17 inputted from the input unit 6.

With the above construction, the invention according to claim 2 is characterized in that the positions of the two input pulleys are mounted on the outside of the vertical space between the step floor and the control frame, so that Maintenance such as belt exchange became possible relatively easily from the step floor.

[0011]

Next, the effects of the present invention will be described. First, the invention of claim 1 has an advantage that the engine is effectively cooled by the cooling fan shafted on the intake side of the outside air and the intake air blower fan provided on the exhaust side of the cooling air. Further, the intake air blowing fan blows the exhaust air from the end of the grain culm conveying device of the pre-cutting device to the grain culm inheriting portion that supplies the harvested grain culm to the beginning end of the feed chain of the threshing device. It has the function of blowing off the straw debris that has adhered to the base of the plant. At this time, the inherited grain culm is blown by the blowing wind while flowing in the direction from the spike to the stem, so that the grain stem is opened in a fan shape and mixed between the culm and the culm. There is an effect that even straw waste that has fallen is properly passed down to the feed chain.

Next, according to the second aspect of the present invention, the position of the two input pulleys is arranged in a layout which is mounted on the outside of the vertical space between the step floor and the control frame. This has the effect that maintenance such as inspection and repair and belt replacement from the seat side can be extremely easily performed.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be specifically described below. First, the combine is shown in FIGS.
As shown in FIG. 11, a control seat 8 is provided on the front right side of the traveling vehicle body 2 having a crawler 18, and a Glen tank having a discharge auger is mounted behind the control seat 8. A threshing device 3 is mounted adjacent to the left side.
Then, as shown in FIGS. 2 and 3, the combine
Mission case 1 equipped with traveling mission device 16
9 is provided at the front of the traveling vehicle body 2 so as to be connected and supported, a mowing suspension stand 20 is provided at an upper front side of the transmission case 19, and a hydraulic stepless motor comprising a hydraulic pump 14a and a hydraulic motor 14b is provided at an upper rear side. The transmission 14 is provided as a device.

As shown in FIGS. 1 and 2, the cutting frame 21 is pivotally connected to the cutting suspension base 20 so as to be vertically rotatable and extends forward and downward. A weeding pretreatment device is provided with a weeding rod 22, a grain stalk raising device 23, a mowing device 24, and a grain stalk transporting device 6, which transports the harvested grain stalks to the threshing device 3 and supplies it to the starting end of the feed chain 4. 5
Is composed.

In this embodiment, the above-mentioned feed chain 4
As shown in FIG. 1, a grain stalk transport device 6
The grain culm inheritance unit 7 is provided so as to face the end of the grain culm and carries over the grain culm. As shown in FIG. 1 and FIG. 2, the control seat 8 has a step floor on the lower front side for the operator to put his feet while working or to work while standing. 11 is provided, and a side cover 25 is provided on the left side (the center side of the traveling vehicle body 2) so as to be freely opened and closed. The side cover 25 is used to carry out maintenance work on the input pulley 15 and the mowing input pulley 17 of the hydraulic continuously variable transmission 14, which will be described later, and the maintenance work of the transmission belt. 26 is loosened and opened.

The expressions on the left side or right side described in this specification are all determined based on the state of the combine viewed in the forward direction. Then, as shown in FIG. 3, the traveling transmission device 16 of the combine has an input shaft 27 and a transmission shaft 28 mounted on a transmission case 19, and further has a side clutch shaft 29, A left and right traveling output shaft 30, 30 'are arranged in this order to constitute a series of transmission mechanisms provided with a conventionally known auxiliary transmission. And the mission case 19
As shown in FIG. 2 already described, is mounted on the front part of the combine in front of the engine 9 and connected to the traveling vehicle body 2.

In the case of the embodiment, the engine 9 is arranged in the space below the control seat 8 already described with reference to FIG. 1 and FIG. Thus, the radiator 32 and the cooling fan 33 are provided inside the outer dustproof net 31.

Next, the hydraulic continuously variable transmission 14 is shown in FIG.
As described above with reference to FIG.
And a hydraulic motor 14b, as shown in FIG.
It is installed on the upper part of the mission case 19. And
The hydraulic continuously variable transmission 14 is, as shown in FIG.
The power is transmitted from an output gear 35 axially mounted on the output shaft 34 of the motor 14b to the intermediate gear 37 of the intermediate shaft 36, and further transmitted to the input gear 38 on the lower side to the input shaft 27 in the transmission case 19. It is configured to transmit the changed rotational power.

The gears 35, 37, 38 are
As can be seen from the drawing, the output shaft 34, the intermediate shaft 36, and the input shaft 27 are respectively supported by bearings on the left wall of the transmission case 4 and extended outwardly.
A detour transmission device 39a is formed inside the. The bypass transmission case 39 is used for the mission case 19.
Thus, the shafts 34, 36, and 27 are cantilevered, and are freely detachably covered by a transmission cover 40 from outside. Further, as shown in FIGS. 4 and 5, the bypass transmission case 39 has a climbing oil passage 41 formed on the mating surface and returns from the hydraulic device (the power steering hydraulic mechanism 42, the cutting vertical hydraulic mechanism 43). The oil is guided to the output shaft 34.

As described above, the bypass transmission case 39 returns to the output shaft 34 from the upper hydraulic motor 14b, guides the oil, and forcibly lubricates the coupling portion (the output shaft 34) to endurance. As shown in FIGS. 3 and 4, oil is supplied to the uppermost part of the transmission system, so that a series of gear trains (gears 35, 3
7, 38), the oil flows down sequentially and lubrication can be performed, thereby improving durability.

As shown in FIGS. 3 and 4, the bypass transmission case 39 has a communication port 44 which communicates with the transmission case 19 at a lower portion thereof. Constitutes an oil circulation path. Further, as shown in FIG. 3 and FIG. 4, the bypass transmission case 39 has an oil supply port 45 opened at an upper portion thereof, so that a series of gears can be lubricated even during refueling.

As shown in FIGS. 3 and 4, a drain 46 is provided at the lower end of the bypass transmission case 39, and the transmission cover 40 is removed to maintain the bypass transmission device 39a. The configuration is such that it can be performed independently of the case 19.

The transmission case 19 has a drain 47 at its lower end as shown in FIG.
Is provided so that the oil in the case can be drained freely at the time of oil change. The transmission case 19 and the bypass transmission case 39 described above have a series of functions of a tank of a hydraulic mechanism, and the oil is hydraulic oil for the hydraulic mechanism and also serves as lubricating oil for the transmission mechanism. Have functions. Then, the oil normally lubricates the upper gear while sequentially pumping from the lower gear as it rotates.
Although so-called pumping lubrication is performed, the forced lubrication described above is performed when the hydraulic oil returns or is supplied from the upper oil supply port 45 as described above.

In the case of the above embodiment, as shown in FIGS. 3 to 5, a hydraulic actuation valve 48 connected to a hydraulic device (power steering hydraulic mechanism 42, cutting vertical hydraulic mechanism 43).
(In the case of the embodiment, the valve for cutting up and down)
The case 19 is provided in close proximity to the bypass transmission case 39 so that the oil can be easily returned to the bypass transmission case 39 and circulated. As described above, in the embodiment, when the hydraulic oil and the transmission mechanism are combined, a large amount of oil is required. Conventionally, there is a problem that the oil is discharged from the breather due to a large amount. However, the configuration of returning to the bypass transmission case 39 has solved the conventional functional problem, and the manufacturing cost has been greatly reduced.

Next, as shown in FIGS. 1 to 3, the cutting power transmission device 50 extends the input shaft 27 to the right outside of the transmission case 19 and is mounted on the end of the cutting power take-out device. And a cutting input pulley 1 of the cutting frame 21.
7, a reaping belt 52 is wound around, and the rotational power transmitted through the traveling mission device 16 is transmitted to the reaping device 24, the grain stalk raising device 23, and the grain stalk transporting device 6. In the case of the embodiment, the reaping belt 52 is located outside the side cover 25 of the step floor 11, and when the side cover 25 is opened, maintenance such as replacement can be performed relatively easily. I have.

The hydraulic continuously variable transmission 1 shown in the embodiment
As shown in FIG. 1 to FIG. 3, the configuration 4 does not include a charge pump and a relief valve as compared with the conventional configuration, and has a configuration in which an oil tank 54 is integrally mounted. The cooling fan 10 (corresponding to the intake blower fan 10; the same applies hereinafter) can be integrally rotated outside the hydraulic shift input pulley 15 of the hydraulic continuously variable transmission 14 as shown in FIGS. And a wind cylinder 55 provided at an outer peripheral position thereof to guide and guide the cooling air. In this case, as shown in FIG. 6, the wind cylinder 55 is configured to be fixedly supported on the hydraulic continuously variable transmission 14 by a support arm 56.

As shown in FIG. 1, the hydraulic continuously variable transmission 14 equipped with the cooling fan 10 is disposed at a position laterally separated on the left side of the engine 9 provided with the cooling fan 33 on the right outside. The cooling air flows in the same cooling air passage in which the cooling air flows laterally from the engine 9 side to the hydraulic continuously variable transmission 14 side. The cooling fan 10 uses the cooling air (exhaust air) sucked from the engine 9 side for the hydraulic continuously variable transmission 1.
In addition to cooling the main body 4 and the oil tank 54 and the transmission case 19 to cool it, the exhaust air is blown out to the feed chain 4 side so as to be blown to the grain culm inheriting portion 7. I have.

In the case of the embodiment, the input pulley 15 of the hydraulic continuously variable transmission 14 is, as shown in FIG. 1 and FIG.
Is disposed on the left side of the step floor 11 provided in the front lower part of the vehicle. And the hydraulic shift input pulley 15
As can be seen from the drawing, the engine 9 is located outside an upper and lower space formed between a control frame 12 disposed above and in the front-rear direction and the step floor 11 below the control frame 12. The transmission belt 57 is wound so that transmission is possible.

As shown in FIGS. 6 and 7, the transmission belt 57 pivots the hydraulic continuously variable transmission 14 to the end of a mounting bolt 58 fixed to the upper portion of the transmission case 19. The tension structure is such that tension is applied by the supported tension pulley 59. 6 and 7 showing the embodiment, reference numeral 60 denotes a tension arm, and 61 denotes a tension spring.

The tension mechanism of this embodiment has a configuration using the mounting bolt 58 as a fulcrum as compared with a conventional tension arm which is provided with another fulcrum. There is a feature that it is significantly simplified and cost can be reduced. Next, the hydraulically operated lever of the cockpit 8
62 (commonly known as "power telever") and the cutting vertical hydraulic mechanism 4
The interlocking configuration with the hydraulically operated valve 48 connected to 3 will be described.

First, as shown in FIGS. 8 and 10, the hydraulic operation lever 62 is provided on the front side of the control seat 8 disposed at the front right side of the traveling vehicle body 2, and as shown in FIG. By operating the power steering rotating shaft 63 as a fulcrum, the side clutch is engaged / disengaged, the side brake can be operated according to the degree of operation, and the steering operation can be performed. Then, the mowing frame 21 is lowered, and when the mowing frame 21 is tilted rearward, the mowing frame 21 is raised. As shown in FIG. 9, the hydraulically actuated valve 48 is fixed to the transmission case 19 at a position close to the bypass transmission case 39, and the steering seat is already described with reference to FIGS. 8 far side (mission case 1)
9 (left side of FIG. 9).

As shown in FIG. 9, the interlocking shaft 65 is formed as a rotation fulcrum shaft by passing through an insertion hole 66 formed in the upper part of the transmission case 19 and penetrating left and right. And the interlocking shaft 65 is
As shown in FIGS. 9 and 10, a link 67 from the hydraulic lever 62 is connected to the right end, and a connecting rod 68 connected to the hydraulic valve 48 is connected to the left end to switch the valve. Is configured to be possible.

In the drawing, reference numeral 69 denotes a connecting lot, which is configured to transmit the operating force from the hydraulic operating lever 62 to the link 67. As described above, the operation interlocking device is provided with the interlocking shaft 65 which is inserted through the insertion hole 66 which is formed by penetrating the upper part of the transmission case 19 to the left and right. 2
A hydraulically operated valve 48 fixedly mounted on the left side of the transmission case 19 is operated from the right control seat 8.

Therefore, the configuration of the embodiment has an advantage that the rigidity of the entire configuration including the hydraulic operation system can be secured and the configuration is simplified, and the transmission case 19 has a pivotal fulcrum during operation. Since the interlocking shaft 65 is mounted on the shaft, there is a feature that it is easy to secure the accuracy in machining and that a smooth operation (interlocking) can be performed.

Next, the operation of the embodiment according to the present invention will be described. First, the engine 9 on the traveling vehicle body 2 is started, the combine is advanced while driving the rotating parts of the body, and the harvesting and threshing of the culm is started. Then, the cereal culm in the field is sown by the weeding rod 22 at the front, then reaches the reaper 24 and is mowed. It is passed through the culm inheriting section 7 and held at the beginning of the feed chain 4 and supplied to the threshing apparatus 3. In the process of transporting the culm with the roots of the cereals held by the feed chain 4, the tip portion passing through the handling room is threshed by the handling cylinder.

During such cutting and threshing operations, the intake fan 10 (cooling fan 10) is provided with a cooling fan 33 mounted on the outside (intake side) of the engine 9 as seen in a plan view of FIG. It sucks outside air and sends it to the engine 9 for cooling. It sucks the exhaust air and sends it to the hydraulic continuously variable transmission 14 for cooling. At this time, the intake fan 10 (cooling fan 10) sucks the exhaust from the engine 9 on the upstream side to promote engine cooling, and sends the flowing exhaust to the downstream side to send the hydraulic continuously variable transmission 14 and the auxiliary device. The oil tank 54 and the like are cooled.

Further, as shown in the plan view of FIG. 1, the intake air blower fan 10 discharges the exhaust air from the end of the grain culm conveying device 6 of the pre-cutting device 5 to the beginning of the feed chain 4 of the threshing device 3. It sprays onto the grain cultivation inheriting section 7 that supplies the harvested grain culm to the section and mixes into the root of the transported grain culm or exerts an action of blowing off the attached straw waste. In other words, the cereal culm inherited by the feed chain 4 is blown while the exhaust air flows from the tip side to the cultivar direction toward the culm, so that the culm culm is opened in a fan shape. Straw debris mixed between the culms is dropped, and after the action of removing the straw debris is properly performed, the debris is smoothly passed on to the feed chain.

As shown in FIG. 2, the combine according to the present invention uses a reaping input
The maintenance of two belts, the reaping belt 52 wound around the wheel 17 and the transmission belt 57 wound around the input pulley 15 of the continuously variable hydraulic transmission 14 from the engine 9, is performed by the operation seat 8.
There is also a feature that can be done from the side. These two input ports
Since the shafts 15 and 17 are positioned outside the vertical space between the step floor 11 and the control frame 12, the rims 15 and 17 extend from the step floor 11 of the control seat 8 to the side cover 2.
Maintenance such as belt replacement can be performed by a relatively simple operation of simply removing the cover 5.

[Brief description of the drawings]

FIG. 1 is an embodiment of the present invention and is a plan view showing a partial cross section.

FIG. 2 is a side view of the embodiment of the present invention.

FIG. 3 is a front sectional view of a developed transmission case according to the embodiment of the present invention.

FIG. 4 is a side view showing an embodiment of the present invention in a partial cross section.

FIG. 5 is a sectional view of a part of a transmission case according to an embodiment of the present invention.

FIG. 6 is a sectional view of an upper part of a transmission case according to an embodiment of the present invention.

FIG. 7 is a left side view of the hydraulic continuously variable transmission according to the embodiment of the present invention.

FIG. 8 is a left side view of the front part of the combine according to the embodiment of the present invention.

FIG. 9 is a front sectional view of a developed transmission case according to the embodiment of the present invention.

FIG. 10 is a simplified front view of a hydraulic operation system according to an embodiment of the present invention.

FIG. 11 is a side view of the combine according to the embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Grain supply port 2 Running body 3 Threshing device 4 Feed chain 5 Cutting pre-processing device 6 Grain culm transport device 7 Grain culm inheritance part 8 Steering seat 9 Engine 10 Intake ventilation fan (cooling fan) 11 Step floor 12 Control floorム 13 Operation panel 14 Hydraulic continuously variable transmission 14a Hydraulic pump 14b Hydraulic motor 15 Hydraulic transmission input pulley 16 Travel transmission device 17 Cutting input pulley.

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) A01D 69/03 A01D 69/03 69/06 69/06 B62D 49/00 B62D 49/00 EF term (reference 2B074 AA02 AB01 AC02 AD05 AF02 BA04 CA01 CE01 CH01 DA01 DA02 DA03 DD02 DE03 DF03 2B076 AA03 BA02 DA02 DA05 DA15 2B084 AA01 AC05 BH08

Claims (2)

[Claims] 1. A starting end of a feed chain 4 of a threshing device 3 mounted on a traveling vehicle body 2 with a grain stalk supply port 1 facing forward,
The culm transfer unit 7 is formed by facing the end of the cereal culm conveying device 6 from the side of the pre-cutting treatment device 5, and a control seat 8 disposed on the traveling vehicle body 2, which is disposed on the side of the starting end of the threshing device 3. In the combine having the engine 9 mounted on the lower side, the intake air blower fan 1 is disposed between the control seat 8 and the threshing device 3.
0 is a combine layout in which cooling air sucked from the engine 9 side is blown to the grain stem inheriting portion 7. 2. A starting end of a feed chain 4 of a threshing device 3 mounted on a traveling vehicle body 2 with a grain stalk supply port 1 facing forward,
The culm transfer unit 7 is formed by facing the end of the cereal culm conveying device 6 from the side of the pre-cutting treatment device 5, and a control seat 8 disposed on the traveling vehicle body 2, which is disposed on the side of the starting end of the threshing device 3. The control frame 12 is disposed in the front and rear direction on the upper left of a step floor 11 provided on the lower front side of the control seat 8 in a combine having the engine 9 mounted below the control seat 8. -An input pulley 1 of a hydraulic continuously variable transmission 14 input from the engine 9 to the outside of the vertical space in a side view of the le frame 12 and the step floor 11.
5 and a layout of a combine including a mowing input pulley 17 input from the traveling transmission device 16.