JP3714335B2 - Combine - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to a work vehicle.
[0002]
[Prior art]
A conventional air vent hose for a fuel tank has a structure in which one end of the air vent hose is connected to the fuel tank and the other end is connected to an arbitrary member located above the fuel tank. It was.
[0003]
[Problems to be solved by the invention]
In the conventional configuration as described above, there is a problem that dust or the like enters the air vent hose from the other end side of the air vent hose.
[0004]
OBJECT OF THE INVENTION
It is intended to prevent dust and the like from entering the air vent hose.
[0005]
[Means for Solving the Problems]
In the present invention, a cutting unit 4 is provided in front of the machine frame 1 having the traveling device 2 to cut and transfer the planted cereal husks, and is conveyed from the cutting unit to the upper side of the machine frame 1. A threshing device 3 for threshing and sorting cereal grains is provided, and a grain tank 6 for temporarily storing grains threshed and sorted by the threshing device 3 is provided on the other upper side of the machine frame 1. In the combine provided with a driver's seat 5, an engine 11 and a fuel tank 12 are provided above the fuselage frame 1, and the engine 11 is provided below the driver's seat 5. A horizontal frame 56 is provided, and the horizontal frame 56 is disposed on the front side of the grain tank 6 and the fuel tank 12 and above the fuel tank 12, and the upper end position of the grain tank 6. Ri is disposed on the lower side, said fuel tank 12 is connected to one end of the air vent hose 55, the other end the said fuel tank 12 opens into the transverse frame 56 transverse frame of the air vent hose 55 configured so as to connect the 56, further, it is an combine, characterized in that a rolling mechanism to level the body frame 1 relative to the field of lateral inclination.
[0006]
【Example】
An embodiment of the present invention will be described with reference to an example of a combine. 1 is a fuselage frame of a combine, 2 is a traveling device provided at a lower position of the fuselage frame 1, and 3 is a threshing provided at an upper position of the fuselage frame 1. The apparatus, 4 is a cutting part provided in the front position of the body frame 1, 5 is a driver's seat, 6 is a glen tank, 7 is a cerealing apparatus that supplies the grain threshed by the threshing apparatus 3 to the glen tank 6, 8 is a second product return device provided in the threshing device 3, 9 is a discharge graining device provided in the Glen tank 6, 10 is a discharge auger, 11 is an engine provided below the driver's seat 5, and 12 is It is a fuel tank.
The body frame 1 is composed of a longitudinal frame 15 in the front-rear direction and a lateral frame 16 in the left-right direction, and a traveling frame 17 of the traveling device 2 parallel to the front-rear frame 15 is predetermined to the left and right below the body frame 1. Provide with a gap. Rollers 18 are provided on the outer surface of the running frame 17 at a predetermined interval in the front and rear, and a crawler 19 is wound around the outer periphery of the wheels 18. Reference numeral 20 denotes drive wheels, and 21 denotes idle rollers.
[0007]
Thus, a rolling mechanism is provided between the machine frame 1 and the traveling frame 17 to level the machine frame 1 with respect to the left and right inclination of the farm field. Since the rolling mechanism is configured symmetrically, it will be described below with the same reference numerals. A front horizontal mounting shaft 23 is provided at the front portion of the traveling frame 17, and a front portion of the front side horizontal arm 24 of the front side link mechanism is pivotally attached to the front side horizontal mounting shaft 23. Are attached to the front support shaft 25 in a fixed state. The front support shaft 25 is attached to a front support metal provided on the side of the body frame 1 so as to be rotatable only. A base portion of the front vertical arm 26 of the front link mechanism is fixedly attached to the front support shaft 25.
A rear lateral attachment shaft 28 is provided at the rear portion of the traveling frame 17, and the front portion of the rear lateral arm 29 of the rear link mechanism is pivotally attached to the rear lateral attachment shaft 28. The base portion of the rear lateral arm 29 is fixedly attached to the rear support shaft 30 in the left-right direction. The rear support shaft 30 is attached to the rear support metal provided on the body frame 1 side so as to be rotatable only. A base portion of the rear vertical arm 31 of the rear link mechanism is fixed to the rear support shaft 30.
[0008]
The upper part of the front vertical arm 26 and the upper part of the rear vertical arm 31 are connected by a refractive link mechanism 32 that refracts at an arbitrary position therebetween, and the tip of the rod 34 of the rolling cylinder 33 is attached to the left and right refractive link mechanisms 32. .
Thus, the base of the exhaust pipe 37 is connected to the exhaust manifold 36 of the engine 11, and the tip of the exhaust pipe 37 is connected to the front side of the muffler 38 that is long in the front-rear direction. The muffler 38 is positioned above the output pulley 39 provided on the output shaft of the engine 11, but the rear end of the muffler 38 is as close as possible to the engine 11 side as it reaches the rear side, and the muffler 38 in plan view is connected to the output pulley 39. The belt 40 is separated from the upper position of the belt 40. That is, the muffler 38 is configured to be as close to the engine 11 as possible and away from the upper position of the belt 40 as long as it does not interfere with the upper portion of the engine 11.
The base of the tail pipe 42 is connected to the rear lower surface of the muffler 38. The tail pipe 42 is disposed between the left and right rolling cylinders 33 so as to extend rearward, and the end of the tail pipe 42 is inclined downward. Let
[0009]
The tail pipe 42 serving as an exhaust passage from the muffler 38 to the end of the tail pipe 42 is divided into front and rear portions from an arbitrary portion, and a suction device 43 is provided at the divided portion. The suction device 43 fixes the base-side small-diameter pipe 44 on the base side (front side) of the tail pipe 42 so as to penetrate the base-side attachment portion 45a of the guide member 45 having an open rear surface of the bowl shape. The guide member 45 is formed with a flange-shaped portion 45b having a larger diameter as it reaches the tip, following the base-side mounting portion 45a, and the edge of the flange-shaped portion 45b is separated and formed in the opening 45c.
The end portion 46 of the base side small diameter pipe 44 faces the inner surface side of the flange-shaped portion 45b of the guide member 45, and the end portion 46 of the base side small diameter pipe 44 faces the distal end side (rear side) of the tail pipe 42. The end 48 of the large-diameter pipe 47 is exposed.
The distal-side large-diameter pipe 47 has a smaller diameter than the opening 45c of the flange-shaped portion 45b, but is formed to have a larger diameter than the proximal-side small-diameter pipe 44, and the distal-side large-diameter pipe 47 has an end portion 48 and a proximal-side small-diameter. A predetermined interval is provided between the end portions 46 of the pipe 44, and the center of the distal-side large-diameter pipe 47 is arranged concentrically with the center of the base-side small-diameter pipe 44. Therefore, the gap between the end 46 of the base-side small diameter pipe 44 and the end 48 of the distal-side large-diameter pipe 47 becomes the suction port 43a of the suction device 43 and sucks outside air from here. That is, the exhaust gas passing from the end portion 46 of the base side small diameter pipe 44 to the end portion 48 of the front end side large diameter pipe 47 generates a negative pressure phenomenon as in the well-known Bernoulli's theorem, and sucks the outside air around it. The air is sucked from the mouth 43a, and the diffuser effect is generated by the movement of the outside air.
[0010]
The suction device 43 is disposed in the vicinity of the power transmission means of the engine 11, and the power transmission means of the engine 11 is cooled or the ambient temperature is prevented from rising due to the diffuser effect of the suction device 43. In the embodiment, the suction device 43 is disposed in the vicinity of the belt 40 wound around the output pulley 39 to prevent the cooling or the rise in the ambient temperature.
Thus, the engine 11 is disposed sideways in the airframe traveling direction, the radiator fan 50 is provided on the outer side of the engine 11, and the suction device is not affected by the blown air (warm air) from the radiator fan 50. 43 is provided behind the engine 11 and is disposed in the vicinity of the belt 40. 51 is a passive pulley, 52 is a tension pulley, and 53 is a cover provided above the tail pipe 42.
[0011]
The tail pipe 42 is arranged so as to overlap with a part of the rolling cylinder 33 and the refraction link mechanism 32 in a side view, and the end is inclined downward.
Accordingly, the fuel tank 12 has an air vent hose 55 (the person skilled in the art expresses as "air vent", but sends air into the fuel tank 12 in order to supply the fuel in the fuel tank 12 to the engine 11). ), The tip of the air vent hose 55 is opened in a cylindrical horizontal frame 56 constituting a part of the engine room of the engine 11, and the end of the horizontal frame 56 is covered with dust by an intake cover or the like. Prevents intrusion. Reference numeral 57 denotes a fuel filler port.
A transmission case 60 and a hydraulic continuously variable transmission (HST) 61 that transmit rotation to the traveling device 2 are provided on the front side of the engine 11, and an engine starter 62 is provided on the rear side of the engine 11. Therefore, the space between the transmission case 60 and the hydraulic continuously variable transmission 61 and the engine 11 is reduced to make the whole small, and the engine starter 62 is not provided between the transmission case 60 and the engine 11. The maintenance of the mission case 60 and the engine 11 is facilitated, and the maintenance of the engine starter 62 is also facilitated.
63 is a flywheel, 64 is an engine cover, and 65 is a vertical movement device.
[0012]
Next, the operation will be described.
The engine 11 is started, and the traveling device 2 is driven by the rotation of the engine 11 to travel. Exhaust gas generated by combustion in the cylinder of the engine 11 reaches the muffler 38 from the exhaust manifold 36 through the exhaust pipe 37 and is exhausted from the muffler 38 through the tail pipe 42.
In this case, since the suction device 43 is provided in the exhaust passage from the muffler 38 to the end of the tail pipe 42, the ambient air in the vicinity of the suction device 43 is sucked and the ambient temperature is lowered or the ambient temperature is reduced. Prevent the rise.
[0013]
And since the suction device 43 is provided in the vicinity of the belt 40 (engine output transmission means) for transmitting the rotation of the engine 11, the belt 40 (engine output transmission means) is cooled to improve durability.
That is, the tail pipe 42 is divided into a base-side small-diameter pipe 44 and a tip-side large-diameter pipe 47 from an arbitrary portion including a connection portion with the muffler 38, and the base-side small-diameter pipe 44 is formed to have a smaller diameter than the tip-side large-diameter pipe 47. Then, a predetermined interval is placed between the end portion 48 of the distal end side large diameter pipe 47 and the end portion 46 of the proximal side small diameter pipe 44 so that the center of the distal end side large diameter pipe 47 coincides with the center of the proximal side small diameter pipe 44. Since the rod-shaped guide member 45 is concentrically arranged and fixed to the base side small diameter pipe 44, the flow rate of the exhaust gas discharged from the base side small diameter pipe 44 is high, so the pressure becomes low and the guide Due to Bernoulli's principle, a negative pressure phenomenon is generated between the end 46 of the base side small diameter pipe 44 and the end 48 of the large diameter pipe 47 opened in the member 45. Suction of device 43 Becomes 43a, the outside air sucked from the suction port 43a, the outside air flow to be aspirated, a diffuser effect occurs, the power transmission means is cooled by the outside air flow by the diffuser effect.
[0014]
In this case, the suction device 43 fixes the base-side small-diameter pipe 44 on the base side (front side) of the tail pipe 42 so as to penetrate the base-side mounting portion 45a of the guide member 45 having an open rear surface of the bowl shape. After the side mounting portion 45a, a flange-shaped portion 45b having a larger diameter as it reaches the tip is formed, and the edge of the flange-shaped portion 45b is separated and formed in the opening 45c. The opening is made in the range of 360 degrees around the large-diameter pipe 47, so that a wide range of diffuser effects can be expected, and the degree of freedom of arrangement of the suction device 43 and the power transmission means is increased.
Further, since the outside air flows into the tail pipe 42 by the suction device 43, the temperature of the exhaust gas in the tail pipe 42 is also lowered.
[0015]
Further, since the output pulley 39 can be arranged under the muffler 38, the whole is made small, and the muffler 38 is separated as much as possible from the upper position of the belt 40 (engine output transmission means). make it easier.
Thus, the engine 11 is disposed sideways in the aircraft traveling direction, and the radiator fan 50 is provided on the outer side of the engine 11. However, since the suction device 43 is provided behind the engine 11, Is not affected by the ventilation of the engine (heated by the engine 11).
Since the tail pipe 42 is equally spaced between the left and right rolling cylinders 33 and the tail pipe 42 is arranged so as to overlap the rolling cylinder 33 in a side view, the rolling cylinder Even if sawdust or the like falls on the tail pipe 42 due to the expansion / contraction of the rod 34 of the rod 33, accumulation is prevented.
[0016]
In addition, the tail pipe 42 is provided between the left and right rolling cylinders 33 to ensure an effective mounting space. In particular, in the case of a combine, the space between the threshing device 3 and the Glen tank 6 is effectively used. In addition, since the ground height of the tail pipe 42 can be increased, the wetland traveling performance is improved, and the tail pipe 42 is lowered at the end, so that the exhaust efficiency is improved.
Thus, the tip of the air vent hose 55 whose base is connected to the fuel tank 12 is opened in a cylindrical horizontal frame 56 constituting a part of the engine room, and the end of the horizontal frame 56 is covered with dust by an intake cover or the like. Since intrusion is prevented, when the fuel in the fuel tank 12 is supplied to the engine 11 and the fuel is reduced, the fuel is sucked from the end of the horizontal frame 56. Accordingly, the air to be sucked is clean and is opened at a position far higher than the fuel tank 12, so that fuel does not leak even if the aircraft is inclined.
[0017]
【effect】
Since the present invention is configured as described above, when the fuel in the fuel tank 12 is supplied to the engine 11, when the fuel decreases, air is sucked from the horizontal frame 56, and at this time, the horizontal frame 56 is higher than the fuel tank 12. Since it is located, it is possible to prevent fuel from leaking even if the aircraft is tilted. Furthermore, since a rolling mechanism for leveling the machine body frame 1 is provided, it is possible to suppress the generation of a large amount of dust due to the combine machine body swinging left and right.
[Brief description of the drawings]
FIG. 1 is a side view of a work vehicle (combine).
FIG. 2 is a rear view of the same part.
FIG. 3 is a schematic side view of a traveling device and an exhaust device.
FIG. 4 is a plan view of the same part.
FIG. 5 is an enlarged plan view of the same part.
FIG. 6 is a schematic side view of an exhaust device and engine output transmission means.
FIG. 7 is a cross-sectional view of a suction device.
FIG. 8 is a rear view of the fuel tank.
FIG. 9 is a cross-sectional view of an opening of an air bleeding hose.
FIG. 10 is a plan view for explaining the arrangement of the air bleeding hose.
FIG. 11 is a side view illustrating the arrangement of the engine starter.
FIG. 12 is a schematic developed view from the plane and front of the engine transmission path.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Airframe frame, 2 ... Traveling device, 3 ... Threshing device, 4 ... Harvesting part, 5 ... Driver's seat, 6 ... Glen tank, 7 ... Graining device, 8 ... 2nd thing return device, 9 ... Grain removal Device: 10 ... Discharge auger, 11 ... Engine, 12 ... Fuel tank, 15 ... Front / rear frame, 16 ... Horizontal frame, 17 ... Traveling frame, 18 ... Rolling wheel, 19 ... Crawler, 20 ... Drive wheel, 21 ... Idle roller, 23 ... Front horizontal mounting shaft, 24 ... Front side horizontal arm, 25 ... Front side support shaft, 26 ... Front side vertical arm, 28 ... Rear side mounting shaft, 29 ... Rear side horizontal arm, 30 ... Rear side support shaft, 31 ... Rear Side longitudinal arm, 32 ... Refraction link mechanism, 33 ... Rolling cylinder, 34 ... Rod, 36 ... Exhaust manifold, 37 ... Exhaust pipe, 38 ... Muffler, 39 ... Output pulley, 40 ... Belt (engine output transmission means), 42 ... tail pipe, DESCRIPTION OF SYMBOLS 3 ... Suction device, 43a ... Suction port, 44 ... Base side small diameter pipe, 45 ... Guide member, 45a ... Base side attaching part, 45b ... Saddle-shaped part, 45c ... Opening part, 46 ... End part, 47 ... Large tip side Diameter pipe, 48 ... End, 50 ... Radiator fan, 51 ... Passive pulley, 52 ... Tension pulley, 53 ... Cover, 55 ... Air vent hose, 56 ... Horizontal frame, 57 ... Refueling port, 60 ... Mission case, 61 ... Hydraulic continuously variable transmission, 62 ... engine starter, 63 ... flywheel, 64 ... engine cover, 65 ... vertical movement device.

Claims (1)

A cutting part (4) is provided in front of the machine body frame (1) having the traveling device (2) to cut and transfer the planted cereal grains, and the cutting part is provided on the upper side of the machine body frame (1). A threshing device (3) for threshing and sorting the cereals conveyed from (4) is provided, and the grain threshed and sorted by the threshing device (3) is temporarily stored on the other upper side of the machine body frame (1). the grain tank (6) provided for in the combine provided with a forward driver's seat (5) of the grain tank (6), above the body frame (1) has an engine (11) and a fuel tank (12) And the engine (11) is provided below the driver's seat (5). A horizontal frame (56) is provided above the fuselage frame (1), and the horizontal frame (56) 6) and fuel tank (12) A side arranged below the upper end position of the grain tank (6) while disposed above the fuel tank (12), connected to one end of the air vent hose (55) to the fuel tank (12) The other end of the air vent hose (55) is opened in the horizontal frame (56) to connect the fuel tank (12) and the horizontal frame (56). A combine comprising a rolling mechanism for horizontally leveling the fuselage frame (1) with respect to right and left inclination .

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