JPH07264917A - Dust proof device of movable farming machine - Google Patents

Abstract

PURPOSE:To provide a dust proof device improved in dust proof effect of outer air intake part by extremely simple constitution. CONSTITUTION:In a movable farming machine constituted so as to take outside air through a dust proof net (30) into a sucking chamber (28) by a suction fan (26), a dust retaining part (34) in the lower part on outside air intake side of a dust proof net (30) is communicated and connected through a dust discharge pipe (38) to a sucking chamber of a suction fan (26).

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dustproof device for a mobile agricultural machine in which a dustproof net is provided at an outside air intake for cooling a radiator of a combine harvester or an oil cooler to prevent dust from entering the outside air. .

[0002]

2. Description of the Related Art There is a type of dustproof net provided with a cyclone type dustproof device for removing large dust having a relatively large specific gravity in advance by the action of centrifugal force on the outside air intake side.

[0003]

However, in such a cyclone type, since a dust retaining portion for retaining the removed dust in the direction of centrifugal force is formed, the dust retaining portion is regularly charged. There was a hassle of having to clean the room.

[0004]

SUMMARY OF THE INVENTION Therefore, according to the present invention, in a mobile agricultural machine in which outside air is taken into a suction chamber through a dust-proof net by a suction fan, a dust retaining portion below the outside air intake side of the dust-proof net is provided. The suction chamber of the suction fan is connected to the suction chamber via a dust pipe, and the dust remaining in the dust collecting section is forcibly removed by effectively utilizing the suction force of the suction fan. The dustproof property can be improved by a costly means.

[0005]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a side view of the dustproof device, FIG. 2 is an overall side view of the combine, and FIG. 3 is a plan view of the combine. In FIG. 1, (1) is a machine frame equipped with a traveling crawler (2) on a track frame (3). , (4) is equipped with an axial flow screw type handling cylinder (5), a processing cylinder (6), etc. and is mounted on the machine base (1) for a threshing section, and (7) is a fried cylinder (8). Threshing unit (4) taken out via
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 the uncut grain culm, and the header (1).
7) The culm culm is connected to the rear center of the rear part and the threshing culm is threshed (4).
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. is 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) via the processing cylinder (6) and threshing again. And it is provided to re-sort.

As shown in FIGS. 4 to 6, the oil cooler (24) for cooling the hydraulic oil of the hydraulic continuously variable transmission (HST) for driving the reaper (9) is used to drive the cabin (1).
1) An air suction fan (26), which is provided on the right outside between the lower part and the machine base (1) and drivingly connects the fan shaft (25) to the engine (15), is arranged inside the machine body from the oil cooler (24). A fan casing (27), which is a shroud, is integrally provided to surround the outside of the cooler (24) and the fan (26), and a suction chamber (28) in the casing (27) is provided by a suction fan (26). The oil cooler (24) is cooled by the outside air taken in.

Further, a dustproof net (30) is stretched over the air suction port (29) opened on the right side of the fan casing (27), and the outside of the dustproof net (30) is an air passage casing (31). To form an air intake air passage (32) between the dustproof net (30) and the casing (31). The air passage casing (31) has an upper and lower partition plate (33) provided therein. The air intake air passage (32) is formed on the upper side of the partition plate (33), and the dust exhaust air passage (34) which is a dust retaining portion is formed on the lower side.

Further, an opening is provided in the upper portion of the rear side surface (31a) of the air passage casing (31) to allow the intake air passage (32).
A tangential inflow type air intake port (35) to the air intake port (3) is provided at the front of the partition plate (33).
The cyclone type dust passage (37) is used as a communication passage (36) between the air passage (32) and the dust passage (34).
(34) and the passage (36).

Further, the rearmost portion of the dust passage (34) opposite to the communication passage (36) of the dust passage (34) and the cooler of the suction chamber (28) of the fan casing (27) ( Two
4) and the fan (26) are connected to each other by a dust pipe (38) so that dust or the like flowing into the dust air passage (34) is sucked by the suction force of the suction fan (26). It is configured so that it is sucked into (38) and merged with the air after cooling the cooler from the air outlet (39) on the left side of the casing (31) and discharged.

In this embodiment, the reels (19), the cutting blades (20), and the reels (19) of the mowing section (9) are constructed as described above.
An oil cooler (24) for cooling hydraulic oil of a hydraulic continuously variable transmission (HST) for cutting, which drives a scraping auger (21), a chain conveyor (22), etc., is connected to the suction fan (2).
It is cooled by the air taken into the fan casing (27) by 6), and dust and the like mixed in the air is collected and removed by the net (29) when passing through the dustproof net (29).

Thus, the air (cooling air) taken from the air intake (35) of the air passage casing (31) into the intake air passage (32) rotates clockwise as shown in FIG. When the fan (26) flows in the same direction as the rotation of the fan (26) from a tangential direction, dust having a relatively large specific gravity mixed in the air collides with the front side surface (31b) of the front casing (31) by a cyclone action. Alternatively, it directly flows into the communication passage (36) on the lower side of the front side surface (31b) and flows out into the dust exhaust passage (34) below this.

The dust that has flowed into the dust exhaust air passage (34) is sucked into the dust exhaust pipe (38) communicating with the suction chamber (28) at the innermost portion of the air exhaust passage (34), and the suction chamber (28). ) Joins the air after cooling the cooler (24) and is discharged to the outside of the casing (27) through the exhaust port (39).

As described above, the suction force of the suction fan (26) for cooling the oil cooler (24) is effectively used to automatically enable forced removal of dust and the like mixed in the cooling air. is there.

In this embodiment, an oil cooler (2) for reaping drive is used.
The dustproof device of the suction fan (26) of 4) is shown in FIG.
As shown in FIG. 3, the suction fan (2) for cooling the engine radiator (40) of the engine (15) and the oil cooler (41) of the traveling hydraulic continuously variable transmission (HST).
6a) can be effectively used as a dustproof device, and the suction fans (26) (26a) may be centrifugal fans such as sirocco fans and cross-flow fans in addition to axial fans. Also in this case, the dust discharged from the dust exhaust pipe (38) joins the air after cooling the radiator (40), so that the radiator (40) is prevented from being adversely affected.

[0017]

As is clear from the above embodiments, the present invention provides a mobile agricultural machine in which the suction fan (26) draws outside air into the suction chamber (28) through the dust-proof net (30). Since the dust retaining portion (34) below the outside air intake side of the dustproof net (30) and the suction chamber (28) of the suction fan (26) are connected to each other through the dust pipe (38). The dust remaining in the dust retaining portion (34) can be forcibly removed by effectively utilizing the suction force of the suction fan (26), and the dustproofness is improved by means of an extremely simple structure and low cost. It has a remarkable effect.

[Brief description of drawings]

FIG. 1 is a side view of a dustproof device.

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

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

FIG. 4 is a side view of the dustproof device.

FIG. 5 is a front explanatory view of the dustproof device.

FIG. 6 is an explanatory plan view of the dustproof device.

FIG. 7 is a plan view of the dustproof device of the engine unit.

[Explanation of symbols]

 (26) Suction fan (30) Dust-proof net (34) Dust exhaust passage (dust collecting part) (38) Dust pipe

Claims (1)

[Claims] 1. In a mobile agricultural machine in which outside air is taken into a suction chamber through a dust-proof net by a suction fan, dust is collected from a dust retaining portion below the outside air intake side of the dust-proof net and the suction chamber of the suction fan. A dustproof device for mobile agricultural machines, which is connected and connected via a pipe.