JPS5917246B2 - Boujin Amino Jiyojin Sochi - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a dust removal device for a dustproof net such as a radiator in an engine mainly installed in a harvester such as a combine harvester.

In general, in combine harvesters that emit a large amount of dust such as straw waste, the dust-proof net in the radiator is particularly prone to clogging, which requires extremely complicated work to remove the dust. It was necessary.

An object of the present invention is to make it possible to easily, efficiently, and reliably remove dust adhering to this dustproof screen.

Hereinafter, the present invention will be explained according to specific examples shown in the drawings.

Fig. 1 shows a concrete example of a dustproof net 1 constructed on a combine harvester C. Regarding the combine harvester C, 2 is a reaping part which is the front of the vehicle, 3 is a part outside the running of crawlers etc., and 4 is a threshing part which is the main part of the vehicle. The threshing section 4 includes a sawing barrel, sawing barrel shaft, etc. (not shown).

Engine E, which uses a water-cooled system, is mounted on the rear of the tower.Regarding the engine E, 5 is an air cleaner, 6 is a muffler, and 7 is a crankshaft that comes out from the rear of engine E, which is connected to a crank pulley 8 and a dynamo. The pulley 9 and the fan pulley 10 are installed in the dorsal position as a well-known three-point device, and the cooling fan 11 cooperates with the pulley 9 and the fan pulley 10.

Reference numeral 12 denotes a cooler main body connected to the rear side of the cooling fan 11, and the main body 12 has a core 12. l is configured.

These constitute a cooling device via a dustproof net 1 attached to the rear end of the combine C, as detailed in Fig. 2, where 13 is an intake body on which the dustproof net 1 is stretched at the same position. The air cleaner 5 extends freely into the intake body 13.

Against the above background, the present invention has been embodied as follows.

That is, FIG. 2 to FIG. 4 show the first specific example, in which the intake body 13 has a semi-circular cross-section, and the dust-proof net 1 is stretched on the rear surface to correspond to this, and is vertically placed at the center of the arc. The dust removal support shaft 14 is rotatably provided as shown in FIG. A vertical inner wiper 16 is attached to the tip for sliding contact.

As shown in the third figure, the pronation wiper 16 has a middle member related to the moving direction, and can freely reciprocate in the lateral direction on the arc surface of the dustproof net 1, and the attached straw dust etc. With the inner wiper 16 releasing the wind pressure, the inner wiper 16 is pushed outward.

On the other hand, on the outside of the dustproof screen 1, an L-shaped outer duct 11 is connected to the dust removal screen 1 from the upper wall of the intake body 13 to the dustproof screen 1 so as to accompany the dust removal support shaft 14 extending from the top of the intake body 13.・It is equipped to face the -16, and the duct 17 has an open half-tube in the part facing the dustproof net 1! A dust removal air passage 18 is formed between the two at 16 degrees 11 and opens downward, and a second
As shown in the figure, part of the cooling air is forcibly distributed and discharged through the dust removal air suction port 19 facing into the air discharge tube of the cooling fan 11 to take out the air, and the air communication passage 20 communicating therewith. It is something that can be done.

That is, the air passage 18 is configured so that the air inside the air passage 18 is circulated through the outside of the dustproof screen 1 from its upper end to its lower end, and then discharged downward, with the air inside the dustproof screen 1 being blocked from flowing inside the dustproof screen 1 by the inner wiper 16. has been done.

Here, 21 in the fourth diagram is a flexible intermediate connecting tube,
Since the wiper operation involves rotation, it is interposed to absorb this displacement. 22 is a support for a series of vibrations, and 23 is a bearing installed between the outer duct 17 and the intake body 1. Here, the intermediate connecting tube 2
1. The support 22 and the like are not particularly limited.

In addition, if the power extraction configuration of the dust removal support shaft 14 is explained with reference to FIG.
First) It is possible that the power is extracted from various interlocking shafts or pulleys constructed in the threshing section 4, such as a lifting shaft, but in this specific example, the power transmission system 24, such as a flexible wire, is extracted from the crankshaft 7, which is located in the closest position. The reciprocating motion converting section 25, which includes a worm crank mechanism (not shown), is connected thereto.

Next, referring to the specific example shown in FIGS. 6I and II, air is branched from the outer duct 17 into the inner wiper 16 through the dust removal support shaft 14 and the wiper support rod 15, and air is supplied to the dustproof net 1. A discharge route 26 is configured to discharge the dust from the inside to the outside, and the straw waste and the like that have landed on the dustproof net 1 are removed by backflow and further downward by the outer duct 17.

In FIG. 1, air is once introduced into the inner wiper 16 through the discharge route 26' by positioning the blocking piece 27 protruding inside the outer duct 17 so as to correspond to the upper and lower intermediate positions of the inner wiper 16. It adopts a so-called bent configuration in which air is discharged to the outside again, and the same purpose can be achieved with a much simpler configuration than those in FIGS. 6I and II.

In addition, FIG. 8 shows a cylindrical type with an intake body 13 and a dustproof screen, and the inner wiper 16 and the outer duct 17 can be configured in a plurality of pairs, and the reciprocating motion converting section 25 and the like can be omitted. Since the dust-proof net 1 rotates continuously, the durability of the interlocking system is improved, and the dust-proof net 1, which can cover a wide area, reduces the intake air flow velocity and attenuates the suction force for straw waste.

Here, it is free to attach a brush to the inner wiper 16 as shown in FIG. 8 (28).

In the dust removal device of the present invention, a dustproof outer duct 17 is provided on the outside of the dustproof net 1 provided on the air suction side of the cooling fan 11. An air passage 18 through which air flows from top to bottom to suck out attached dust and discharge it downward is formed to be longer than the vertical length of the dustproof net 1, and an air passageway 18 is formed inside the dustproof net 1 opposite to the air passage 18. An inner wiper 16 is provided to block the flow of air from the passage 18 to the cooling fan 11, and the outer duct 1
7 and the inner wiper 16 are configured to be able to move together along the lateral direction of the dustproof screen 1, so that the air flowing from top to bottom on the outer surface of the dustproof screen 1 sucks out dust attached to the dustproof screen 1. Since the air is not sucked into the cooling fan 11 by the inner wiper 16 and is circulated from the upper end to the lower end of the dustproof net 1, the dust can be removed reliably. Dust is not sucked into the dustproof net 1 again, and furthermore, since the outer duct 17 and the inner wiper 16 move together in the lateral direction, the entire area of the dustproof net 1 can be thoroughly cleaned.

Although this is just an additional example, the intake body 13 is supported by a buffer mechanism 29, 29 on the combine C side as shown in FIG.
If 0 is provided intermediately, damage to the cooler main body 12 made of a thin plate can be particularly prevented.

Further, the inner wiper 16 and the like may be designed to move back and forth in a straight line, and may also be applied to a dustproof net of a wind guide case called a spiral for an air-cooled engine.

Also, as shown in the third figure, the inner part of the inner wiper 16 is removed from the outer duct 17! If the width is wider than that of the inner wiper 16, -1(
Since the tfR king is controlled, straw waste is easily removed when the air inside the outer duct 17 responds.

[Brief explanation of drawings]

Fig. 1 is an external view of the combine harvester as a whole, Fig. 2 is a structural diagram explaining the extraction from the rear of Fig. 1, Fig. 3 is a sectional view taken along line I-I in Fig. 4, Fig. 4 is Figure 3 is a longitudinal cross-sectional view, Figure 5 is a structural diagram that explains the interlocking system, and Figure 6 is I.
is a structural diagram showing another specific example in the direction corresponding to FIG. 2, FIG. 6 ■ is a cross-sectional view of the same figure ■, FIG. FIG. 2 is an explanatory plan view showing a specific example. 1... Dustproof net, 11... Cooling fan,
16...Inner wiper, 17...Outer duct, 18...Dust-proof air passage 1 E...
··engine.

Claims (1)

[Claims] 1 Dustproof net 1 provided on the air intake side of the cooling fan 11
In the dust removal device with a dustproof net, which is provided with a dustproof outer duct 17 on the outside of the dustproof net, the outer duct 17 has a space between the dustproof net 1 and the dustproof net 1 to suck out the dust attached to the dustproof net 1 and discharge air from above to the bottom. An air passage 18 is formed to be longer than the vertical length of the dustproof net 1, and the air passage 18 is formed inside the dustproof net 1.
An inner wiper 16 is provided opposite to the air passage 18 to block the flow of air from the air passage 18 to the cooling fan 11, and the outer duct 17 and the inner wiper 16 are movable together along the lateral direction of the dustproof screen 1. A dust removal device with a dustproof net, characterized in that: