JP2000110563A - Engine structure of combined harvester and thresher - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide engine structure of a combined harvester and thresher capable of carrying out piping of a radiator hose to connect a radiator and an engine to each other in simple constitution and vibration isolatingly supporting the radiator. SOLUTION: A reserve tank 5 is installed on an outside surface of an engine 2a so as to have a cavity part H free to horizontally pass a radiator hose 3 below and the engine 2a and a radiator 2b are connected to each other by passing this radiator hose 3 through the inside of this cavity part H in a combined harvester and thresher constituted by placing the engine 2a and the radiator 2b on a travelling machine base 1b by aligning them in the cross direction and connecting the radiator 2b and the engine 2a to each other by the radiator hose 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radiator hose mounting structure for connecting an engine mounted on a combine and a radiator.

[0002]

2. Description of the Related Art Conventionally, as an engine unit in which an engine and a radiator are arranged on a traveling machine base in front and rear, a combine having a grain tank mounted above the engine unit is already known.

[0003]

In such a combine, the radiator placed side by side and the outer surface of the engine are successively covered by an engine cover with a small gap, and therefore, the engine and the radiator The radiator hose for connecting the cooling water to the radiator hose needs to form a supply passage and a return passage above the engine, so that a large gap for piping is required above the engine.

[0004] Therefore, the center of gravity of the grain tank installed above the engine is correspondingly higher, and there is a disadvantage that the size of the body is increased. Further, the radiator hose has a complicated shape having many bent portions in order to circumvent the upper part of the engine, and the molding die of the rubber hose for manufacturing the radiator hose becomes expensive. As a result, manufacturing and assembly costs are increased. Is large.

[0005]

The engine structure of the combine according to the present invention has been made in order to solve the above-mentioned conventional problems, and comprises an engine 2a and a radiator 2b mounted on a traveling machine base 1b. Are placed side by side in a horizontal direction, and a radiator 2b and an engine 2a are connected to each other by a radiator hose 3. In a combine, a reserve tank 5 is located on an outer surface of the engine 2a, and an air gap is provided below the reserve tank 5. In addition to forming a portion H, the radiator hose 3 is connected to the engine 2a and the radiator 2b through the gap H. Also, a mounting frame 60 for mounting the reserve tank 5 is provided.
Thus, it is also characterized in that the radiator hose 3 located below is supported at an intermediate portion thereof.

[0006]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of a combine engine according to the present invention;

In FIG. 1, reference numeral 1 denotes a combine having an engine structure (engine unit) 2 according to the present invention, which is arranged on a traveling machine base 1b supported by a crawler traveling device 1a by the same arrangement as that of a conventional device. A multi-row type mowing unit 10 is supported so as to be able to move up and down, and a threshing unit 11 is placed on the left side of the traveling machine stand 1b behind the mowing unit 10, and a driver's seat 12 and an engine unit 2 to be described later are mounted on the right. The grain tank 13 is installed above and behind the engine unit 2.

As shown in FIGS. 1 and 2, the grain tank 13 has a discharge spiral shaft 1 of a grain discharge auger 15 for discharging the stored grains outside the machine, at the bottom of the corner near the outside.
6 is provided sideways, and the discharge spiral shaft 16
The grain tank 13 is supported so that its upper part rotates from the solid line work position in FIG. 2 to the maintenance work posture shown by the dotted line.

Next, FIG. 3 to FIG.
This will be described with reference to FIG. The engine unit 2 in the illustrated example mounts the engine 2a at a front position of the traveling machine base 1b with its output shaft 2s (FIG. 4, F is forward, B is rearward) toward the interior of the machine. The radiator 2b is placed on the rear side B of the fuselage in a state where the cooling water is circulated between the engine 2a and the radiator 2b.
And a radiator hose 3 composed of a return liquid hose 3b and the like.

Then, the reserve tank 5 provided in the path of the radiator 2b is mounted on a support frame 6 (FIG. 3) which is planted from the traveling machine base 1b on the right outer side (FIG. 5, hereinafter referred to as an outer side) of the engine 2a. , Is fixed via a mounting frame (mounting base) 60, and further, a “gap portion H” is formed below the mounting frame 60 so that the liquid feed hose 3 a can pass laterally. The reserve tank 5 is communicated with a water supply port (cap portion) 20 of the radiator 2b by a conduction pipe 21 so that the reservoir tank 5 can be degassed at the time of liquid supply.

As shown in FIG. 3, the liquid supply hose 3a has an open end of an L-shaped first liquid supply hose 3c connected to the radiator 2b and a U-shaped connection connected to the engine 2a. The opening end of the second liquid supply hose 3d is fitted and connected in a series, and the positioning and support of this portion is performed by a fixing tool (tightening ring) 61 provided below the mounting frame 60. .

With the above configuration, the middle part of the liquid supply hose 3a is supported in a stable state so as not to come into contact with other equipment and to minimize vibration.
The liquid supply hose 3a is connected to the first liquid supply hose 3c and the second liquid supply hose 3c.
By dividing into the liquid supply hose 3d, it is possible to efficiently produce the product with a simple and easy-to-mold shape using an inexpensive rubber molding die. In the illustrated example, the fuel supply port 23 (FIG. 3) of the engine 2a is connected to the second
It is located inside the U-shaped bent portion of the liquid sending hose 3d so as not to hinder the oil supply. Further, a fuel feeder (such as a filter) 24 is arranged below the liquid feed hose 3a.

On the other hand, the upper return hose 3b connects the upper part of the radiator 2b and the cylinder head of the engine 2a in order to cool the engine 2a and return hot water to the radiator 2b. I have. In this embodiment, as shown in FIG. 4, the radiator 2 is provided so that the shape of the return hose 3b can be made as short and simple as possible.
b and the cylinder head of the engine 2a are made close to each other, and the mounting position of the pipeline is set. With this piping configuration, it is possible to easily and inexpensively manufacture the return hose 3b, and to improve the durability of the pipeline against high temperature and high pressure.

The engine unit 2 constructed as described above is entirely covered with an engine cover 2k (FIG. 2) which is provided on the outside of the traveling machine stand 1b so as to be openable and closable in a vertical direction. As shown in FIGS. 3 and 5, the engine unit 2 includes a turbocharger 7 connected to an air cleaner 7a at an upper portion of a cylinder head unit, and supplies air into the engine 2a via a conduit 7b.

At this time, the upper frame 1F that supports the engine cover 2k and the grain tank 13 is provided at a low position horizontally by bending upward just above the turbocharger 7. The air cleaner 7a is installed in a space formed on the side of the grain tank 13, and is connected to the turbocharger 7 by a flexible intake hose 7c.

When the grain tank 13 is turned to the maintenance work posture shown by the dotted line in FIG.
The components 3 and the respective components such as the return hose 3b and the conduit 7b are arranged so as not to contact or interfere with each other.

According to the present invention, the cooling water cooled by the radiator 2b passes through the "gap H" formed below the reserve tank 5 so that the cooling water is piped in a simple shape. Since the engine section 2 is circulated by the liquid hose 3a and the return hose 3b having a short length and a simple shape, the engine 2a can be efficiently circulated in the pipeline without a large pipeline resistance or the like. be able to.

Then, a long liquid supply hose 3a for supplying low-temperature cooling water is passed through the lower side of the reserve tank 5, and the mounting frame 60 supporting the reserve tank 5 supports a halfway portion to supply the liquid. By increasing the length of the straight portion of the liquid hose 3a, its manufacture can be performed simply and inexpensively. Further, it is possible to install the liquid supply hose 3a in a state where the deflection of the liquid supply hose 3a is properly prevented while effectively utilizing the gap H below the reserve tank 5.

Although it is incidental, the liquid supply hose 3a
Since piping is provided on the outer surface of the engine 2a, maintenance work of this portion is easy, and there is an advantage that water leakage does not hinder the engine 2a.

[0020]

According to the present invention, the shape of the radiator hose 3 can be simplified by passing the radiator hose 3 of the radiator 2b arranged side by side in the engine 2a through the space H below the reserve tank 5 on the outer surface of the engine. Thus, the cooling water can be circulated satisfactorily with low resistance, and the engine can be cooled efficiently. Further, since the form is simplified as described above, the radiator hose 3 can be manufactured easily and at low cost.

Since the mounting frame 60 of the reserve tank 5 supports the middle part of the radiator hose 3, vibration of the radiator hose 3 and the like can be effectively prevented, and the supporting structure of the radiator hose 3 is further improved. Can be simplified.

[Brief description of the drawings]

FIG. 1 is a side view of a combine.

FIG. 2 is a rear view of a main part of FIG.

FIG. 3 is a side view showing a structure of an engine unit.

FIG. 4 is a plan view of FIG. 3;

FIG. 5 is a front view of FIG. 3;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Combine 2 Engine part (engine structure) 2 Radiator hose 3a Supply hose 3b Return hose 3c First return hose 3d Second return hose 5 Reserve tank 6 Support frame 60 Mounting frame H Void

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2B074 AA01 AB01 AC02 BA15 CD05 CH01 DA02 DA04 DC07 DF02 DF08 GB01

Claims (2)

[Claims] An outside surface of the engine 2a, wherein the engine 2a and the radiator 2b are mounted side by side on the traveling machine base 1b and the radiator 2b and the engine 2a are connected by a radiator hose 3. And a radiator hose 3 is connected to the engine 2a and the radiator 2b through the vacant space H. Construction. 2. A mounting frame 60 for supporting the reserve tank 5.
The radiator hose (3), which is located below the reserve tank (5), is supported midway.
Combine engine structure.