JPH08158961A - Dustproof structure for engine of working vehicle - Google Patents

Abstract

PURPOSE: To prevent an air cleaner arranged in a dustproof box from being functionally deteriorated in its early stage and to faciliate a dust removing work for the air cleaner in a working vehicle where an air cleaner for an engine is placed in a dustproof box for supplying the outside air to a radiator for cooling the engine. CONSTITUTION: A cleaner element 12a is installed in the uncovered state in a dustproof box 11 of a radiator 6 for cooling an engine.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an engine dustproof structure for use in a work vehicle used in a work environment such as a combine harvester or a mowing machine in which a lot of dust is floating.

[0002]

2. Description of the Related Art For example, in a combine harvester, outside air taken into a dustproof box through a dustproof net is guided to a radiator for engine cooling, and an air cleaner for the engine is installed in the dustproof box so that the air removed by the dustproof box becomes an air cleaner. It was designed to be incorporated [see Japanese Utility Model Laid-Open No. 3-92926].

[0003]

However, the air removed by the dustproof box still contains a considerable amount of dust, and the dust in the air sucked into the air cleaner is likely to accumulate between the cleaner case and the cleaner element. , The function of the air cleaner sometimes deteriorated within a relatively short time. Further, the air cleaner has to be disassembled when removing dust accumulated in the air cleaner, and there is room for improvement in terms of facilitating maintenance of the air cleaner. A main object of the present invention is to prevent the air cleaner arranged in the dustproof box from being deteriorated in function by dust at an early stage, and to facilitate the dust removal work for the air cleaner. Further, another object of the present invention is to
The point is to effectively use the dustproof structure to reduce intake noise.

[0004]

A feature of the invention according to claim 1 is that a cleaner element of an engine air cleaner is installed in a dustproof box for supplying air to an engine cooling radiator in a bare state. is there.

According to a second aspect of the present invention, a cleaner element of an engine air cleaner is installed in a dustproof box for supplying air to a radiator for cooling an engine, and a partition wall is provided in the dustproof box. The point is that a partitioned intake muffler is formed, and the outlet side of the engine air cleaner is connected to the intake muffler.

[0006]

According to the structure of the invention according to claim 1, in the air cleaner arranged in the dustproof box, the cleaner element of the air cleaner is exposed and a large space exists around the cleaner element. There is no premature deterioration of the function due to dust clogging the area around. Further, since the cleaner element is exposed when the dustproof box is opened, it is possible to easily discharge and remove the dust adhering to the element and the dust accumulated in the box.

According to the structure of the invention according to claim 2, the above-described function of the invention according to claim 1 is exhibited, and the intake silencing chamber connected to the outlet side of the air cleaner is formed in the dustproof box by partitioning. Therefore, a simple modification can reduce the engine intake noise.

[0008]

As a result, according to the first aspect of the invention, the air cleaner arranged in the dustproof box can be favorably operated for a long time without deteriorating its function due to clogging of dust, and the dust removing work can be facilitated. It is now possible to provide a work vehicle that is excellent in terms of maintenance.

According to the second aspect of the present invention, it is possible to provide a work vehicle which can reduce engine intake noise by simple modification and which is advantageous not only in maintenance but also in quietness and production.

[0010]

【Example】

(Embodiment 1) FIG. 1 shows a side surface of a front part of a self-removing combine. The structure is arranged.

As shown in FIGS. 1 and 2, an engine 5 and a radiator 6 for cooling the engine 5 are arranged in parallel inside and outside the machine body (in the left-right direction) and outside the radiator 6. Is provided with a flat air intake duct 8 inside and outside equipped with an outside air intake 7 with a dust-proof net, and the outside air is taken into the duct through the outside air intake 7 by the suction action of the cooling fan 9 located at the back of the radiator 6. 6 is configured to be cooled. In addition, a dustproof box 11 having an outside air intake 10 with a dustproof net on a plurality of surfaces is provided on the upper part of the driving part 4, and the dustproof box 11 and the intake duct 8 are communicated with each other, and After the outside air is taken into the box through the outside air intake port 10 by the suction action, it is guided to the intake duct 8 and the radiator 6
It is configured to be supplied to.

Inside the dustproof box 11, an air cleaner 1 connected to the intake system of the engine 5 by piping.
2 is deployed. The air cleaner 12 includes a cleaner element 1 fitted and supported in a shape-retaining member 12b having a perforated cylindrical shape.
Cleaner element 1 with 2a exposed
It is installed in the dustproof box 11 with a large gap between 2a and the inner surface of the box. By doing so, it is possible to avoid clogging of dust between the cleaner element 12a and the inner surface of the box, it is possible to exert the cleaner function without cleaning for a long time, and the dustproof box 11 is opened. The dust accumulated in the box can be easily removed and the cleaner element 12a can be cleaned easily.

(Embodiment 2) As shown in FIG.
In a combine similar to that described above, an airtight muffler chamber 14 having an airtight structure partitioned by a partition wall 13 is formed in the dustproof box 11, and the outlet side of the air cleaner 12 arranged in the dustproof box 11 with the air cleaner element 12a exposed is located at the intake muffler chamber. 14 and the intake pipe 15 of the engine 5 is connected to the intake muffler chamber 14 to reduce clogging of dust around the air cleaner element 12a and facilitate cleaning of the air cleaner element 11a, as in the first embodiment. The engine intake sound is reduced in the intake muffler chamber 14.

[Other Embodiments] The shape and arrangement of the dustproof box 11 can be appropriately changed, and the structure of the air cleaner 12 can be changed to various forms by appropriately arranging a known one. The specific structure of the intake sound deadening chamber 14 can be appropriately changed in design by utilizing a known technique such as lining a sound absorbing material. The present invention can be applied to various work vehicles such as agricultural machines and construction machines.

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

[Brief description of drawings]

FIG. 1 is a side view of the front part of the combine.

FIG. 2 is a sectional view of a main part of the first embodiment.

FIG. 3 is a cross-sectional view of a main part of the second embodiment.

[Explanation of symbols]

 6 Radiator 11 Dust-proof box 12 Air cleaner 12a Cleaner element 13 Partition wall 14 Intake muffler chamber

Claims (2)

[Claims] 1. A working vehicle engine, in which a cleaner element (12a) of an engine air cleaner (12) is installed in a dustproof box (11) for supplying air to an engine cooling radiator (6). Dust-proof structure. 2. A cleaner element (12a) of an engine air cleaner (12) is installed in a dustproof box (11) for supplying air to an engine cooling radiator (6) in a bare state, and the dustproof box (11). ), An intake muffler chamber (14) partitioned by a partition wall (13) is formed, and an outlet side of the engine air cleaner (12) is communicatively connected to the intake muffler chamber (14). Construction.