JP2015065817A - Combine harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance safety in reaping and harvesting work of a combine harvester by preventing accumulation of waste straw and dust in an exhaust processing device and exhaust pipe so as not to allow high temperature exhaust gas to be blown to threshed waste culms.SOLUTION: An exhaust processing device (13) is installed which purifies exhaust gas exhausted from an engine (7), and in front of a first product grain-lifting cylinder (17) of a threshing device (5), an exhaust pipe (11) is erected from the exhaust processing device (13) upwardly. An exhaust guiding pipe (12) is connected to an upper part of the exhaust pipe (11), and the exhaust guiding pipe (12) is extended rearward at above the threshing device (5), so that an exhaust port (12a)opens rearward.

Description

  The present invention relates to a combine.

  In Patent Document 1 below, a threshing unit is located at a position immediately after the engine in a combine in which a threshing unit is arranged on the left side of the traveling machine base on the left side of the cutting device and an engine surrounded by a driving unit and an engine cover and a glen tank are arranged on the right side. And a DPF that removes particulate matter contained in the exhaust gas is disposed in a space formed by the bottom of the inclined tank bottom wall of the Glen tank, and the exhaust pipe connected to the DPF is connected to the grain of the Glen tank. The structure arrange | positioned toward the back along the outer side of the tank inclination bottom wall by which a conveyance auger is equipped is shown.

  Further, in FIG. 10 of the same document, the DPF exhaust pipe is inserted into the left inclined side wall of the cover body and bent upwards so as to be close to or in contact with the outer periphery of the milling cylinder. In addition, there is shown a configuration in which an exhaust port of the exhaust pipe is provided to open rearward in the vicinity of the upper part of the cereal cylinder.

  Patent Document 2 below describes a Glen tank that stores the culm after reaping, threshing, and sorting, a vertical auger that discharges the culm in the Glen tank, a discharge auger that includes a lateral feed auger, and an engine An exhaust device that exhausts exhaust gas with reduced exhaust noise, and the tail pipe of the exhaust device is disposed at a substantially central portion in the front-rear direction of the fuselage and below the lateral feed auger of the exhaust auger. In addition, a configuration extending rearward of the fuselage is shown.

JP 2011-135846 A JP 2011-206067 A

In order for the combine to thresh the grain together with the harvesting of the cereal, the threshed waste is discharged behind the machine body, and a lot of dust is generated because the planted cereal is scraped away.
Further, the exhaust processing device (DPF, muffler muffler, etc.) and the exhaust pipe of the engine become high temperature, and the exhaust gas becomes high temperature.

For this reason, soot and dust accumulate on an exhaust treatment device and an exhaust pipe, and there is a possibility that this soot may become high temperature.
An object of the present invention is to improve the safety by preventing accumulation of dust and dust on the exhaust treatment device and the exhaust pipe, and preventing spraying of high-temperature exhaust gas on the threshed waste.

The problems of the present invention are solved by the following technical means.
The invention according to claim 1 is an exhaust gas discharged from the engine (7) at a position between the threshing device (5) and the glen tank (4) at the rear part of the engine (7) in the traveling chassis (2). The exhaust treatment device (13) for purifying the exhaust gas is mounted, and the exhaust pipe (11) is erected upward from the exhaust treatment device (13) on the front side of the first cereal cylinder (17) of the threshing device (5), An exhaust guide pipe (12) is connected to the upper part of the exhaust pipe (11), and the exhaust guide pipe (12) is extended rearward on the upper side of the threshing device (5) so that the exhaust port (12a) is directed rearward. Open the combine.

The invention according to claim 2 is the combine according to claim 1, wherein the exhaust guide pipe (12) is externally fitted with a predetermined gap between the exhaust guide pipe (12) and the outer periphery of the exhaust pipe (11).
The invention according to claim 3 is the combine according to claim 1 or 2, wherein the rear part of the exhaust guide pipe (12) is bent downward.

  According to the first aspect of the present invention, the exhaust pipe (11) is erected upward from the exhaust treatment device (13) on the front side of the first cereal cylinder (17). And dust do not collect easily, and the rear part of the exhaust guide pipe (12) extends rearward on the upper side of the threshing device (5), so that swarf and dust generated from the threshing device (5) 12) can be prevented from adhering or accumulating, and the safety of the harvesting and harvesting operation can be improved.

  According to the invention described in claim 2, in addition to the effect of the invention described in claim 1, the exhaust guide pipe (12) is externally provided with a predetermined gap between the exhaust pipe (11) and the outer periphery. Since it is fitted, it is difficult for heat to be transferred from the exhaust pipe (11) to the exhaust induction pipe (12), and outside air is introduced from the gap between the exhaust pipe (11) and the exhaust induction pipe (12). 12) Since the temperature inside falls, safety | security can be improved further.

  According to the invention of claim 3, in addition to the effect of the invention of claim 1 or 2, the rear part of the exhaust guide pipe (12) is curved downward, so that the exhaust guide pipe (12) It is possible to prevent foreign matter from entering the inside.

It is a left view of a combine. It is a partially expanded side sectional view of a combine. It is a partially expanded plan view of a combine. It is a side view which shows the exhaust gas guide pipe rear part of 2nd Example. It is a side view which shows the exhaust gas guide pipe rear part of 3rd Example. It is a side view which shows the exhaust gas guide pipe rear part of 4th Example. It is a side view which shows the exhaust gas guide pipe rear part of 5th Example. It is a partially expanded plan view of the combine of another embodiment. It is a partially expanded sectional side view of the combine of another Example.

Hereinafter, embodiments of the present invention will be described with reference to examples shown in the drawings. In addition, right and left shall mean the left and right toward the front from the combine side.
FIG. 1 is a side view of a combine. A cabin 3 is mounted on the front right side of a traveling chassis 2 equipped with a crawler traveling device 1, and a Glen tank 4 is mounted on a rear portion of the cabin 3. Is equipped with a threshing device 5. A reaping device (working unit) 6 is mounted on the front side of the traveling chassis 2 so as to be movable up and down.

  The engine 7 is mounted on the traveling chassis 2 below the cockpit 18 of the cabin 3, the DOC 9 and the DPF 10 are mounted between the threshing device 5 and the Glen tank 4, and the front exhaust pipe 8 of the engine 7 is connected to the upper part of the DOC 9. The exhaust gas is sent from the DOC 9 to the DPF 10, the rear exhaust pipe 11 is connected to the exhaust port of the DPF 10, and the rear exhaust pipe 11 is directed substantially upward in front of the first cereal cylinder 17 of the threshing device 5. To stand. The DOC 9 and the DPF 10 are the exhaust treatment device 13 for purifying the exhaust gas. However, the exhaust treatment device 13 may be a conventional silencer.

  The arrangement position of the exhaust treatment device 13 is located between the left threshing device 5 and the right grain tank 4 at the left and right and front and rear centers of the traveling chassis 2 and away from the cockpit 18 in the cabin 3. Such a position of the DPF 10 has an effect of drying the harvested grains by warming the air sucked by the tomi of the threshing device 5 without sending hot air to the cockpit 18.

  An exhaust induction pipe 12 supported by an attachment member 14 attached to the outer wall of the threshing device 5 is connected to the rear exhaust pipe 11. The lower part of the exhaust guide pipe 12 may be supported by the first cereal cylinder 17 and the upper part of the exhaust guide pipe 12 may be supported by the threshing device 5.

  The exhaust guide pipe 12 is provided between the threshing device 5 and the grain tank 4, and the insertion portion 12b into which the rear exhaust pipe 11 is inserted is inserted long enough to prevent the exhaust gas from blowing back, and there is a gap between the exhaust pipe 11 and the exhaust guide pipe 12. In order to prevent heat from being transmitted, a heat insulating material may be inserted into the gap. Then, following the insertion part 12b inclined slightly forward, it rises vertically up to the upper side of the threshing device 5, and extends horizontally toward the exhaust port 12a at the rear end.

  The exhaust port 12a of the exhaust guide pipe 12 opens rearward at the rear part of the airframe. However, as shown in FIGS. 4 and 5, the exhaust port 12a may have a shape cut obliquely downward or upward in a side view. The position may extend to the rear of the cutter unit 15, and the rear part of the exhaust guide pipe 12 may be curved obliquely upward as shown in FIG. 6, and the rear part of the exhaust guide pipe 12 is connected to the threshing device 5 as shown in FIG. 7. You may make it the shape bent toward the bottom later. The exhaust guide pipe 12 can also be formed integrally with the frame of the threshing device 5.

  Further, as shown in FIG. 8, the rear part of the exhaust guide pipe 12 may be bent to the left side at the rear side of the threshing device 5 so as to be directed rearward, and extended to the rear part of the exhaust guide pipe 12 as shown in FIG. The exhaust guide pipe 16 may be connected.

4 Glen tank 5 Threshing device 7 Engine 11 Exhaust pipe (rear exhaust pipe)
12 Exhaust induction pipe 13 Exhaust treatment device 17 First cereal cylinder

Claims (3)

  An exhaust treatment device (13) for purifying exhaust gas discharged from the engine (7) at a position between the threshing device (5) and the Glen tank (4) at the rear portion of the engine (7) in the traveling chassis (2). The exhaust pipe (11) is erected upward from the exhaust treatment device (13) on the front side of the first cereal cylinder (17) of the threshing device (5), and is disposed above the exhaust pipe (11). The combine which connected the exhaust induction pipe (12), extended this exhaust induction pipe (12) back on the upper side of the threshing device (5), and opened the exhaust port (12a) toward back.   The combine according to claim 1, wherein the exhaust guide pipe (12) is externally fitted with a predetermined gap between the exhaust pipe (12) and the outer periphery of the exhaust pipe (11).   The combine according to claim 1 or 2, wherein a rear portion of the exhaust guide pipe (12) is bent downward.

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