JPH11196652A - Exhaust device of engine in harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the exhaust device of an engine in a harvester in which an exhaust pipe contrived to ensure a ground clearance even on a work in a wet paddy field is disposed, because the exhaust pipe of a conventional engine is disposed below a frame due to a threshing device and the engine and further because the low ground clearance of the conventional exhaust pipe causes troubles such as the contact of the exhaust pipe with mud and the invasion of muddy water into the exhaust pipe on a work in a wet paddy field. SOLUTION: The rear half portion of an exhaust pipe 3b constituting an exhaust device 3 is formed in a shape gradually downward inclined from a horizontal surface toward the final end of the exhaust pipe 3b. The final end of the exhaust pipe is disposed at a place which is higher than the lowest surface of the frame, higher than the upper surfaces of travel crawlers 15, and apart from the right and left travel crawlers 15, namely approximately central in the frame on the rear side view. Thus, the ground clearance of the final end of the exhaust pipe 3b is ensured, and the splash of mud on the exhaust pipe 3b from the travel crawlers 5 can be avoided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure and an arrangement of an exhaust pipe in an exhaust device of an engine mounted on a harvester.

[0002]

2. Description of the Related Art In the prior art, the arrangement of a threshing device and an engine is regulated, and the exhaust pipe of the engine is generally arranged below the machine frame. For this reason, the height of the exhaust pipe above the ground is reduced, and there is a potential problem related to durability and exhaust performance of the exhaust pipe due to contact with mud or intrusion of muddy water during wetland work.

[0003]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems in the conventional structure.
It is an object of the present invention to provide an exhaust device for an engine in a harvester having a structure and an arrangement of an exhaust pipe designed to avoid intrusion of mud and muddy water even during harvesting work in a paddy field, particularly a wetland related to an engine exhaust pipe. It is the purpose.

[0004]

SUMMARY OF THE INVENTION The present invention provides a self-propelled harvester, wherein an exhaust pipe constituting an exhaust device of an engine is disposed above a lowermost surface of a threshing device and a machine base on which the engine is mounted. That is, it was constructed at a position higher than the minimum ground clearance of the machine stand.

The present invention relates to a self-propelled harvesting machine, in which an exhaust pipe constituting an exhaust device of an engine is arranged in a plan view in a frame of a threshing device or a machine base on which an engine is mounted, and is mounted on a traveling device. The exhaust device is fixed at a position which is separated from the traveling crawler on both the left and right sides, that is, near a substantially central portion of the machine in the left-right direction.

According to the present invention, in a self-propelled harvester, a rear half shape of an exhaust pipe constituting an exhaust device of an engine is gradually inclined downward from a horizontal plane toward a terminal end.

The present invention provides a self-propelled harvesting machine in which the end of an exhaust pipe constituting an exhaust device of an engine is disposed above the upper surface of a traveling crawler mounted on the traveling device. is there.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention relates to a self-propelled harvesting machine, in which the structure and arrangement of an exhaust pipe constituting an exhaust system of an engine are set as far as possible from a traveling crawler and the ground, and are installed in a machine frame. This is to prevent the intrusion of mud and muddy water during wetland work.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an overall side view of a combine as an embodiment according to the present invention, and (1) shows an engine (2) according to the present invention. ) Is a combine equipped with the exhaust device (3). A threshing device (6) equipped with a handling cylinder and a sorting device is mounted on one side of a machine (5) equipped with a crawler-type traveling device (4) (4), and in front of the machine (5). A mowing device (8) comprising a raising device (7) and a cutting blade,
The mowing device (8) is configured to be rotatable up and down by a hydraulic cylinder around a turning fulcrum. ) And a driver's seat (9).

Referring to FIG. 2 in addition to FIG. 1, an engine (2) is arranged below the driver's seat (9) as shown in FIG.
Is located above the crawler type traveling devices (4) and (4) and is mounted on the machine base (5). Also, as shown in FIGS. 1 and 2, the crawler type traveling device (4) (4)
(10), a driving wheel (13) mounted on an axle (12) protruding from a traveling transmission (16) and a driven wheel (14) mounted on a rear part. ), The traveling crawlers (15) and (15) are wound around, and the truck frames (10) and (10) are fixedly mounted on the machine base (5). It is mounted in a pair configuration.

On the other hand, an engine (2) which is a main part of the present invention
As shown in FIG. 2 to FIG. 4, each part constituting the exhaust device (3) includes a silencer (3a), an exhaust pipe (3b), and a connection pipe (3).
c) and a tail pipe (3d), each of which is integrally connected to form an exhaust device (3).

More specifically, an exhaust pipe (3b) extended from a silencer (3a) directly connected to the engine (2).
Is bent so as not to interfere with or come into contact with other members, is guided into the frame of the machine base (5), and is disposed above the lowermost surface of the machine base (5). (3c)
The tail pipe (3d) constituting the end of the exhaust device (3) is connected to form the exhaust device (3).

The tail pipe (3d) is also arranged at a position higher than the lowermost surface of the machine base (5), so that the ground height is higher than the machine base (5).

When the exhaust pipe (3b) constituting the exhaust device (3) of the engine (2) is viewed from the rear, a threshing device (6), a Glen tank (18) and a machine base on which the engine (2) is mounted. A traveling crawler (15) disposed in the frame of (5) and mounted on a crawler-type traveling device (4) (4).
It was fixed at a position separated from both sides from (15), that is, near the approximate center of the machine base (5) in the left-right direction.

The present invention relates to an exhaust pipe (3b) constituting an exhaust device (3) of an engine (2) in a self-propelled harvester.
The shape of the latter half is gradually inclined downward from the horizontal plane toward the terminal end, the connecting pipe (3c) and the tail pipe (3d) are also inclined in the same manner, and the terminal end is shown in FIGS. As described above, it is fixed to the machine base (5) by bolts via the mounting bracket A (17) and the mounting bracket B (19).
The mounting bracket A (17) is formed in a shape having a trough-shaped recess along the outer diameter of the tail pipe (3d) and a suitable edge for fastening with a bolt, and is mounted on the machine base (5). Welded. The mounting member B (19) is a metal member having a cross section formed in a U shape and having a penetrated bolt hole, and is fastened with a bolt.

Further, an exhaust device (3) for the engine (2)
The traveling crawler (1) runs at the end of the exhaust pipe (3b) constituting the
5) It is arranged above the upper surface of (15), and also secures a higher position than the traveling crawlers (15) and (15) in the vertical direction, so that the ground height can be secured even in a field with high wetland properties, and mud and muddy water To avoid contact or intrusion.

[0017]

The present invention is embodied in the form described above, and has the following effects.

In a self-propelled harvester, the exhaust pipe constituting the exhaust system of the engine is arranged above the lowermost surface of the threshing device and the machine base on which the engine is mounted, so that the height of the body can be reduced. The height of the exhaust pipe can be increased, and mud and obstacles, such as stones and earthmass, can be protected by the machine base even when working in wetlands. Therefore, damage and damage to the exhaust pipe can be prevented, and durability can be secured. In addition, the heated exhaust pipe is susceptible to corrosion due to muddy water or mud sticking, so by increasing the ground clearance, muddy water or mud sticking can be avoided as much as possible and durability can be improved. Was.

In a self-propelled harvester, an exhaust pipe constituting an exhaust device of an engine is arranged in a plan view within a frame of a threshing device and a machine base on which an engine is mounted, and a traveling channel mounted on a traveling device. -Since it is fixed at a position that is separated from both the left and right sides of the machine, that is, near the center of the machine in the left-right direction, it is possible to prevent the intrusion of mud and straw chips attached to the traveling crawler and scattered. Thus, the smooth operation of the exhaust system could be measured without hindering the exhaust operation.

In the self-propelled harvester, the rear half of the exhaust pipe constituting the exhaust system of the engine is configured to be gradually inclined downward from the horizontal plane toward the terminal end, so that the wet field has high wetland properties. Even when working in a rice field, the intrusion of muddy water was made difficult, and at the same time, the drainage of water and muddy water that had entered temporarily became easy, and the smooth operation of the exhaust system could be measured.

In a self-propelled harvester, the extreme end of the exhaust pipe constituting the exhaust system of the engine is disposed above the upper surface of the traveling crawler mounted on the traveling device, so that the wetland is extremely wet. Even when working in the cranes, it is possible to secure the height of the exhaust pipe to avoid submersion even if the traveling crawler sinks in mud or muddy water, and to prevent engine troubles caused by poor exhaust. Was completed.

[Brief description of the drawings]

FIG. 1 is an overall side view of a combine according to an embodiment of the present invention.

FIG. 2 is an explanatory rear view of an exhaust device according to a main part of the present invention.

FIG. 3 is an explanatory side view of an exhaust device according to a main part of the present invention.

FIG. 4 is an explanatory plan view of an exhaust device according to a main part of the present invention.

FIG. 5 is an explanatory rear view of a mounting portion of a tail pipe connected to an exhaust pipe according to a main part of the present invention.

FIG. 6 is an explanatory plan view of a mounting portion of a tail pipe connected to an exhaust pipe according to a main part of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Combine 2 Engine 3 Exhaust device 3a Silencer 3b Exhaust pipe 3c Connection pipe 3d Tail pipe 5 Machine stand 6 Threshing device 7 Traveling device 8 Harvesting device

Claims (4)

[Claims] 1. A self-propelled harvester, wherein an exhaust pipe constituting an exhaust device of an engine is disposed above a lowermost surface of a threshing device and a machine base on which the engine is mounted. Exhaust system for engines. 2. In a self-propelled harvesting machine, an exhaust pipe constituting an exhaust device of an engine is separated from a left and right traveling crawler within a frame of a threshing device and a machine base on which an engine is mounted in plan view. 2. The engine exhaust device in a harvester according to claim 1, wherein the exhaust device is fixed at a position near the center. 3. A self-propelled harvester, wherein the shape of the rear half of the exhaust pipe constituting the exhaust device of the engine is gradually inclined downward from the horizontal plane toward the terminal end. Exhaust system. 4. An exhaust system for an engine in a harvesting machine according to claim 4, wherein an end of the exhaust pipe is disposed above an upper surface of a crawler mounted on the traveling device.