JP2500899Y2 - Work vehicle intake structure - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to an intake structure provided in a work vehicle used in an environment such as a combine harvester or a backhoe with a relatively large amount of floating dust.

[Conventional technology]

In the above work vehicle, the metal intake cylinder extending from the air cleaner is projected upward from the hole formed in the upper part of the metal housing of the dustproof structure that covers the air cleaner, and the intake pipe is connected to the upper part of the intake cylinder. In some cases, the gap between the intake cylinder and the housing is closed by a seal member.

[Problems to be solved by the device]

In the above-mentioned conventional example, the combustion air to the engine is taken in from the upper space with a relatively small amount of floating dust, but since the housing and the intake cylinder are both made of metal, there is a gap for absorbing manufacturing errors. Therefore, it was necessary to newly provide a sealing material for preventing floating dust from entering the housing through this gap. Also, to prevent the vibration of the engine from being transmitted from the air cleaner to the intake cylinder and damaging the sealing material, it is necessary to firmly fix the air cleaner with multiple stays, which increases the number of parts and the number of assembly processes. There was a problem that productivity decreased.

An object of the present invention is to simplify an intake structure of an engine and improve workability of assembling the intake structure.

[Means for solving the problem]

In order to achieve the above object, the present invention is characterized in that an air intake cylinder of an air cleaner provided in a housing is projected outward and upward from an opening formed in an upper portion of the bonnet.
An intake pipe made of an elastic material is tightly fitted in both the opening and the intake pipe.

[Action]

According to the above configuration, since the intake pipe made of an elastic material is tightly fitted in both the opening and the intake cylinder, a special sealing material for closing the gap between the opening and the intake cylinder is unnecessary. .

Further, the vibration of the air cleaner is effectively absorbed by the intake pipe, and the air cleaner is supported via the intake cylinder, so that the number of supporting parts of the air cleaner can be reduced.

[Effect of device]

Therefore, according to the present invention, it is possible to provide an intake structure for a work vehicle that has a simple structure and is easy to assemble while extending the intake pipe upward with less floating dust and simplifying the dustproof structure of the air cleaner. It was

〔Example〕

 Hereinafter, embodiments of the present invention will be described with reference to the drawings.

As shown in FIG. 3, the bonnet (2) and the driving part (4) including the housing (3) are arranged on the right side of the front part of the machine body including the crawler traveling device (1), and the bonnet (2) is arranged. A self-draining combine is configured with a grain bagging section (8) provided with a driver's seat (5) on the upper part and a deck (7) for receiving the grain collection bag (6) at the rear of the fuselage. There is.

As shown in FIG. 2, an air intake duct (9) having a dustproof structure is continuously provided on a side surface of the bonnet (2), and a radiator (10) is provided at a position facing the air intake duct (9). There is. Therefore, the outside air for cooling the radiator (10) is
Air is sucked through the air intake duct (9) by the suction force generated by driving the cooling fan (11).

Reference numeral (12) in the drawing is an oil cooler for a hydrostatic continuously variable transmission (not shown) that drives the crawler traveling device (1).

 Next, the opening / closing structure of the bonnet (2) will be described.

As shown in FIG. 2, the bonnet (2) is pivotally supported so as to be openable and closable to the left and right around the longitudinal axis (P) of the machine body, and the lock mechanism (13) allows the engine (14) and the radiator (10) to be rotated. ) To a partially open state that partially covers them and a closed state that completely covers them. More specifically, the lock mechanism (13) comprises a support member (16) provided outside the bonnet (2) and a support rod (17). One end of this support rod (17) is fixed to the rear wall of the bonnet and the other end. Support members (16)
The guide groove (18) provided in the is engaged. The guide groove (18) is provided with an engagement notch (18a) for fixing the position of the support rod (17). By engaging the support rod (17) with the engagement notch (18a), the bonnet The bonnet (2) can be brought into a half-open state by fixing the position (2) in the closed state and removing the support rod (17) from the engagement notch (18a).

By stopping the bonnet (2) in the half-open state in this way, the bonnet (2) can be opened without the intake duct (9) bulging laterally interfering with the deck (7).

Next, the intake structure for the engine provided behind the driver's seat (5) will be described.

As shown in FIG. 2, the air cleaner (19) is provided in the dustproof housing (3), and the intake cylinder (15) is projected outward from the opening (3a) formed in the housing (3). There is. The intake pipe (20) made of an elastic material such as rubber is inserted into the intake pipe (15) and the opening (3a) of the housing (3) in a state of being tightly fitted, and the intake air is taken in. The lower end of the pipe (20) is fixed by tightening a band.

It should be noted that reference numerals are added to the claims of the utility model for convenience of comparison with the drawings, but the present invention is not limited to the structure of the accompanying drawings by the entry.

[Brief description of drawings]

The drawings show an embodiment of an intake structure for a work vehicle according to the present invention,
FIG. 1 is a partially cutaway sectional view showing a mounting structure of an intake pipe, FIG. 2 is a vertical sectional front view of a driving part, and FIG. 3 is an overall side view of a combine. (2) …… bonnet, (3) …… housing, (3a)
…… Opening, (15) …… Intake cylinder, (19) …… Air cleaner, (20) …… Intake pipe.

Claims (1)

(57) [Scope of utility model registration request] 1. An air intake cylinder (15) of an air cleaner (19) provided in a housing (3) is projected outwardly and upwardly from an opening (3a) formed in the upper part of the bonnet (2), and
An intake structure for a work vehicle in which an intake pipe (20) made of an elastic material is tightly fitted in both the opening (3a) and the intake cylinder (15).