JPH0856454A - Mobile farm machine - Google Patents

Abstract

PURPOSE: To simplify the structure of the second air cleaner for pretreatment of combustion intake air for an engine and improve performance. CONSTITUTION: An engine 15 of a mobile machine is provided with the first air cleaner 72 for cleaning intake air and the second air cleaner 73 for pretreating the intake air. The second air cleaner 73 is placed at the most right side on the upper surface of an engine room. The piping work is made with a metal pipe 75 which is integrally attached on structural members 76, which construct the upper part of the engine room.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile agricultural machine provided with a second air cleaner for pretreatment such as a first air cleaner or a precleaner or a dustproof screen in an engine section of a combine, for example.

[0002]

2. Description of the Related Art In a structure having a pretreatment second air cleaner, which is a precleaner, in the preceding stage of a first air cleaner of this type, both the first air cleaner and the second air cleaner are normally arranged in the engine room. Has been done.

Further, in the construction means for removing the dust adhering to the dustproof screen at the cooling air intake of the engine by the air suction force of the intake fan, the air sucked into the intake fan is placed in the engine room. Alternatively, it is discharged to the side or above the airframe.

[0004]

However, when the second air cleaner is provided in the engine room, the number of parts to be installed in the engine room increases correspondingly, the structure in the room becomes complicated, and the interior of the room becomes complicated. Not only is there a problem that the excess space is reduced, but the second air cleaner sucks in the air in the engine room that is not clean,
There is a problem that the dust removal efficiency of the cleaner is reduced.

Further, when the dust discharged from the intake fan is discharged into the engine room, dust is trapped around the engine to cause a fire, and the dust is discharged to the side or above the airframe. In this case, there are inconveniences such as being caught by people around the machine and dust being sucked again from a cooling intake port such as a radiator.

[0006]

SUMMARY OF THE INVENTION Therefore, according to the present invention, in a mobile agricultural machine provided with a first air cleaner for cleaning intake air and a second air cleaner for this pretreatment in an engine, the second air cleaner can be placed at the maximum on the upper surface of the engine room. It is arranged on the right side and is connected to the pipe using a metal pipe, and the room constituent member that constitutes the upper part of the engine room is integrally attached to the pipe, and the air on the opposite side to the exhaust air outlet for cooling the radiator Air can be taken into the second air cleaner from the clean position to maintain stable engine performance, and the piping parts of the second air cleaner and the upper components of the engine room can be used together to simplify the structure and reduce costs. Can be planned.

Further, in a mobile agricultural machine equipped with a dustproof screen and an intake fan for removing dust adhering to the screen with an air suction force, the discharge port of the intake fan is arranged downward and the discharge port is provided. By letting the dust outlet of the dust pipe connected to the machine face below the machine base, the movement of the dust discharged from the intake fan coincides with the downward direction of the natural fall to prevent accidental dust clogging. At the same time, it is possible to prevent dust from being discharged from the intake fan in the engine room or laterally or upwardly of the machine body, thereby ensuring safe and hygienic and stable engine performance.

[0008]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is an explanatory view of an engine section, FIG. 2 is an overall side view of the combine, and FIG. 3 is a plan view of the combine, in which (1) is a machine base equipped with a traveling crawler (2) on a track frame (3), (4) is a threshing section equipped with an axial-flow screw type handling cylinder (5), a processing cylinder (6), etc., and is mounted on the machine stand (1), and (7) is a lifting cylinder (8) Threshing unit (4)
The grain tank for storing the grains of (9) is the threshing part (4)
A reaping part is installed in the lower front of the plant so as to be able to move up and down via a hydraulic cylinder (10), and (11) includes a driver's seat (12) and a driving operation part (13) and is arranged in front of the grain tank (7). An operating cabin to be installed, (14) is an engine part provided behind the grain tank (7) and internally has an engine (15), and (16) is a grain for taking out the grain in the grain tank (7). Upper discharge auger.

The mowing section (9) includes a grain mowing header (17) for receiving uncut grain culm, and the header (1).
7) The harvested culm is connected to the rear center of the rear part of the harvested grain culm and the threshing part (4) is used.
And a reed drive type cutting blade (20) and a grain-scraping auger (21). In preparation for (17), the cut culms to be taken into the header (17) are sent to the threshing section (4) through a supply chain conveyor (22) provided in the feeder house (18) for threshing treatment. are doing.

Further, a second reducing cylinder (23) is provided on the outer right side of the threshing section (4), and the second processed product is returned to the threshing section (4) through the processing cylinder (6) and re-threshed. And it is provided to re-sort.

As shown in FIGS. 4 to 8, an engine radiator (2) for cooling the combustion chamber of the engine (15).
4) and an outside air suction fan (25) for cooling the radiator
And an intercooler (26) for cooling the operating cabin (11) blown air is arranged in the radiator cooling chamber (27) above the engine section (14) to provide an engine room (28) below the engine section (14). Is configured to be isolated.

An engine cover (29) is provided on the right outside of the engine portion (14) so as to be openable and closable.
A circular outside air intake (30) for taking in cooling air, which is the outside air, is provided in the cooling chamber (27) in the engine cover (29), and a dust-proof rotary screen (31) is provided in the intake (30). By disposing the screen (31)
The oil cooler (26) and the radiator (24) are cooled by the clean air after dust removal.

The screen (31) is rotatably supported by a central support shaft (33) on a support frame (32) which is fixed inside the engine cover (29) in the oblique diameter direction of the outside air intake (30). In addition, as shown in FIG. 9, the outer and inner contact rollers (34) (3) that press the bent peripheral edge portion (31a) of the screen (31) from the outer and inner peripheral sides.
5) is the same arm support shaft (3) of the support frame (32).
6) an arm for external and internal contact (3
7) The spring attachment piece (39) at the tip of the inscribed arm (38) is pivotally supported at the tip and the intermediate portion of (38),
Roller pressure contact spring (40) between the tips of the arm for external contact (37)
Screen rotation motor (41) for stretching and rotating the circumscribing roller (34) provided on the circumscribing arm (37).
Therefore, the screen (31) is configured to rotate.

Further, a cylindrical intake duct (43), which faces the intake port (42) in the radial direction on the right surface of the screen (31), is fixedly supported by the engine cover (29), and the duct (43). The proximal exhaust port (44) of the intake fan (44) is connected to the fan case (46) of the intake fan (45) arranged at the left rear part of the cooling chamber (27) through the suction pipe (47) to connect the intake fan (44). The dust adhering to the surface of the screen (31) by the air suction force of 45) sucks in the intake port (42).
Dust that is drawn from the intake duct (43) and is connected to the discharge port (48) of the fan case (46) via the rubber boot (49), a synthetic resin hose, and a metal pipe such as iron or steel The pipe (50) is configured to be discharged to the outside of the machine.

Further, in this case, the fan case (46) has the discharge port (48) arranged downward so that the discharge direction is downward.
An engine frame (51) is provided with a tip dust discharge port (50a) of a dust pipe (50) which is fastened via a mounting bracket (52) and a rubber boot (49) so as to face below the machine base (1). (15) The dust is discharged from the dust pipe (50) under the machine base (1) on the left rear side.

6 to 8, the intake fan (45) is replaced by a suction fan (25) of a radiator (24).
Of the suction fan (25) and the dust passing through the screen (31) to the intake fan (45). While avoiding the inconvenience of hitting and dropping onto the engine (15), the suction port (53) of the intake fan (45) is positioned substantially horizontally or below the exhaust port (44) of the intake duct (43). Arrange the suction tube (47)
It is configured to promote a smooth dust flow in which dust clogging is less likely to occur.

Further, the suction fan (25) of the radiator (24) drives the intake fan (45), and both ends of the radiator fan (25) are extended in the front-rear direction of the airframe behind the suction fan (25) for the radiator. Engine frame (51)
To the fan base (54) of side view type that fixes both ends to
The drive bevel case (55), the fan drive case (56), and the fan case (46) of the suction fan (25) are sequentially fixed from the front side to the rear side to improve the assembling accuracy thereof, while the engine (15) The fan shaft (57a) of the cooling fan (57) is connected to the input shaft (55) of the bevel case (55).
a) via the transmission belt (58), and the fan drive case (5) on the output shaft (55b) of the bevel case (55).
6) The fan drive shaft (25a) of 6) via the transmission belt (59), and the fan shaft (45) of the intake fan (45).
a) to the fan drive shaft (25a) and the transmission belt (6
0) and the engine (15)
Occurrence of a failure, as compared with a configuration in which the suction fan (25) and the intake fan (45) are driven by the driving force of the cooling fan (57) of FIG. Is reduced to improve reliability and simplify the drive structure.

Furthermore, as shown in FIGS. 10 to 11, the screen (3) on the front side of the radiator (24) is provided.
1) Intake duct (61) of radiator (24) between
, The rear surface of the radiator (24) and the suction fan (2
5) Exhaust air shrouds (62) of the radiator (24) are provided between the circumferential side portions of the radiator (24), and the intake duct (61) and the shroud (62) are integrally connected to the front and rear surfaces of the radiator (24), respectively. The radiator proximity part of the duct (61) is formed in the narrow part (61a) and the screen proximity part is formed in the wide part (61b), and the duct outer surface and the narrow part (61a) of the narrow part (61a) are formed. Each bracket (65) fixed to the engine frame (51) by detachably fixing each mounting stay (64) to the outer side surface of the duct step (61c) between the wide portion (61b) and the bolt (63). Each mounting stay (64) is detachably fixed to the radiator (2) via a bolt (63), and the intake duct (61) is attached to the radiator (2).
The supporting frame of 4) is also used to simplify the structure.

Further, the intercooler (26) is provided above the cooling chamber (27) in the intake duct (61) so that dust and the like that enter between the cooler (26) and the radiator (24) are in the lower part of the duct (61). In order to facilitate the cleaning even when staying at the position, the inner surface of the step (61c) of the intake duct (61) is formed as a cooler mounting seat, and the intercooler (26) is bolted to the inner surface of the step (61c). It is configured to be detachably fixed via (66) so that the installation of a dedicated frame for holding the intercooler (26) or the like is unnecessary and the structure is simplified.

Further, two pipe ports (67a) (67b) provided at the rear part of the intercooler (26) (right side in FIGS. 10 to 11) and the suction pipe (47) are connected to the rear step of the intake duct (61). A circular port hole (68) for protruding the two pipe ports (67a) (67b) and the suction pipe (47) through the pipe (68), which is projected to the left outside from the (61c) plane.
a) (68b) and the pipe hole (69) are centrally opened on the rear step (61c) surface in a single vertical row, and the intake duct (61)
Connect each hose (71) for piping to each port (67a) (67b) through the hose band (70) on the outside of the
Assembling and maintenance of these are improved, and each hole (68
By making a) (68b) and (69) circular, a duct forming plate is provided with a grommet to simplify the seal structure.

As shown in FIG. 4, FIG. 6 and FIG. 12, the first air cleaner (72) and the pre-cleaner which are the second air cleaner for removing impurities such as dust from the combustion air supplied to the engine (15). (73) to the engine part (1
4) is provided behind and above the cleaner 4) and these cleaners (72) (73) are connected for communication by a cleaner hose (74) and a pipe (75).
4) A metal pipe (75) such as iron or steel is connected to the precleaner (73) arranged from the maximum right side of the fuselage on the upper surface, and the pipe (7) is moved leftward on the upper surface of the engine section (14).
5) The other end is extended, and the other end is fixedly mounted on the upper surface of the cover mounting seat (76) which is a room configuration member having a side-view gate shape and a left and right longitudinal shape, and the left and right ends of the mounting seat (76) are attached to the engine. After fixing to the frame (51), the front and rear engine upper covers (78) (79) are detachably mounted between the engine frame (51) and the cover mounting seat (76) through the bolts (77), and these mounting seats are attached. (76) and cover (78) (7
9) forms the upper side wall of the engine part (14). Then, clean air is taken in from the upper position on the right side of the machine by a precleaner (73) to maintain stable engine performance, and at the same time, the pipe (75)
Also, the mounting seat (76) for supporting the pipe (75) is also used as the engine upper frame of the engine section (14) so as to simplify the structure.

As shown in FIGS. 1, 4, 5, and 8, the exhaust pipe (80) and the muffler (8) of the engine (15).
1) and 1) are arranged on the exhaust side of the radiator (24) suction fan (25), and these exhaust pipe (80) and muffler (8)
The exhaust air always prevents dust and exhaust heat from staying in 1), and the exhaust pipe (80) and the muffler (81) are the exhaust fan side of the intake fan (25) and the intake fan. (25) is arranged so as to surround it in a U shape, and the flow of the wind from the suction fan (25) is made to be in a substantially straight state without being diffused to the surroundings, and the fan performance is not obstructed. Is configured to maintain stable.

This embodiment is constructed as described above, and the precleaner (72) for taking in the combustion air into the engine (15) is provided on the maximum right side of the machine body, so that dust and the like are relatively less scattered. Intake can be performed from a clean area of the air to maintain stable engine performance. Further, a metal pipe (75) is used as a pipe connected to the precleaner (72), and a mounting seat (76) integrally mounted on the pipe (75) is attached to the engine frame (5).
1) and the mounting seat (76) is attached to the engine part (1
4) is used as an upper frame for holding the precleaner (72) and the engine covers (78) (7).
The mounting seat (76) can also be used for the mounting of 9), and the structure can be simplified.

On the other hand, in the dust removing intake fan (45) of the screen (31) provided at the air intake of the radiator cooling chamber (27), the dust sucked by the intake fan (45) is exhausted into the exhaust pipe (50). By discharging the dust toward the lower side of the machine base (1), it is possible to safely discharge dust without adversely affecting people and the engine (15).

FIG. 13 shows a part of the engine frame (15) used as a dust pipe of the intake fan (45).
The vertical frame (15a) of the engine frame (15) near the intake fan (45) is made of a metal pipe having a four-sided cross section or a round shape, and the discharge port (4) of the fan case (46) is used.
8) is thrust into the vertical frame (15a), and the dust discharged from the discharge port (48) is discharged through the vertical frame (15a) from the lower end of the frame (15a) to below the machine base (1) to simplify the structure. It is configured so as to be realized.

[0026]

As is apparent from the above embodiments, the present invention provides the engine (15) with the first air cleaner (72) for cleaning the intake air and the second air cleaner (73) for this pretreatment. In the mobile agricultural machine, the second air cleaner (73) is arranged on the upper surface of the engine room toward the maximum right side, and is connected to the pipe using the metal pipe (75), and at the same time, is a room constituent member that constitutes the upper part of the engine room (28). Since the pipe (76) is integrally attached to the pipe (75), the air is taken into the second air cleaner (73) from the air cleaning position on the opposite side of the radiator cooling exhaust port to maintain stable engine performance. In addition, the piping parts of the second air cleaner (73) and the upper components of the engine room (28) can be combined to simplify the structure and reduce the cost. Rukoto can.

In a mobile agricultural machine equipped with a dustproof screen (31) and an intake fan (45) for removing dust adhering to the screen (31) with an air suction force,
The discharge port (48) of the intake fan (45) is arranged downward and the dust pipe (5) connected to the discharge port (48).
Since the dust outlet (50a) of (0) faces the bottom of the machine base (1), the movement of the dust discharged from the intake fan (45) coincides with the downward direction of the natural fall, and Prevents accidents such as dust clogging, as well as the engine room (28)
It is possible to prevent dust from being discharged from the intake fan (45) inwardly or laterally or upwardly of the body, which is safe and hygienic, and has stable engine performance.

[Brief description of drawings]

FIG. 1 is a side view of an engine section.

FIG. 2 is an overall side view of the combine.

FIG. 3 is an overall plan view of the combine.

FIG. 4 is a rear view of the engine section.

FIG. 5 is a rear view of the engine section.

FIG. 6 is a side view illustrating an engine section.

FIG. 7 is a side view of the engine section.

FIG. 8 is an explanatory plan view of an engine section.

FIG. 9 is an explanatory diagram of a dustproof screen portion.

FIG. 10 is an explanatory diagram of an intake duct section.

FIG. 11 is an explanatory plan view of an intake duct section.

FIG. 12 is an explanatory plan view of a precleaner portion.

FIG. 13 is an explanatory diagram of an intake fan unit.

[Explanation of symbols]

 (1) Machine stand (15) Engine (28) Engine room (31) Screen (45) Intake fan (48) Discharge port (50) Dust pipe (50a) Dust port (72) Air cleaner (1st air cleaner) ( 73) Pre-cleaner (2nd air cleaner) (75) Pipe (76) Mounting seat (Room component)

Claims (2)

[Claims] 1. In a mobile agricultural machine having an engine equipped with a first air cleaner for cleaning intake air and a second air cleaner for this pretreatment, the second air cleaner is disposed on the upper surface of the engine room to the right of maximum, and is made of metal. A mobile agricultural machine characterized in that a pipe is connected using a pipe, and a room constituent member that constitutes an upper part of an engine room is integrally attached to the pipe. 2. A mobile agricultural machine comprising a dustproof screen and an intake fan that removes dust adhering to the screen with an air suction force, and the discharge port of the intake fan is disposed downward and the discharge port is provided. The mobile agricultural machine characterized in that the dust outlet of the dust pipe connected to the above is configured to face below the machine base.