JP3066235B2 - Soundproof engine driven work machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a single engine,
The present invention relates to an arrangement of an air tank for storing air of a compressor in a working machine driven by a soundproof engine that drives a generator and a compressor.

[0002]

2. Description of the Related Art Conventionally, a technique relating to a combined drive working machine in which a generator and a compressor are driven by an engine has been known. For example, Japanese Patent Application Laid-Open No. 5-26365
No. 6 and Japanese Utility Model Laid-Open No. 57-135898.

[0003]

The present invention relates to a soundproof engine-driven working machine in which an engine is disposed inside a soundproof case and the engine drives a generator and a compressor. When performing a painting operation or the like while supplying compressed air and electric power with such a working machine,
If the soundproof engine-driven work equipment is placed in a narrow place where exhaust air is obstructed or in a position close to the wall of the building, the cooling mechanism inside the soundproof case will operate sufficiently. The temperature of the part of the air tank that stores the compressed air of the compressor becomes 115 degrees or higher, and the air outlet hose from the compressor to the air tank softens,
There were problems such as the joint part coming off and sometimes bursting from the part. The present invention is configured such that the temperature around the air tank does not become high even in such a place.

[0004]

The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described. A first aspect of the present invention relates to a soundproof engine-driven working machine that drives a compressor 4 by an engine, wherein an air tank 2 is disposed on a side of a cooling fan 5 of the compressor 4, and a cooling air intake is provided at a position below the air tank 2 of the soundproof case 1. The inlet is opened, and the periphery of the air tank 2 is cooled by suction of the cooling fan 5.

According to a second aspect of the present invention, in the air tank 2, the discharge side air pipe 10 is extended and wound around the air tank 2.

A third aspect of the present invention relates to a soundproof engine-driven working machine in which a generator and a compressor 4 are driven by an engine E disposed inside a soundproof case 1, wherein the generator is arranged in series with the engine E, and the engine E rotates. The other compressor 4 is arranged in parallel with the engine E, driven by a transmission means, and the air tank 2 is arranged on the side of the cooling fan 5 of the compressor 4 at a position diagonal to the engine E. It was done.

[0007]

Next, the operation will be described. That is, according to the present invention,
In a narrow place where the soundproof engine driven work machine is difficult to exhaust,
Even when the air tank 2 is placed in close contact with the wall surface of the building, it cools the periphery of the air tank 2, which is most likely to be at the highest temperature. That is no more. Further, since the extended discharge-side air pipe 10 serves as a fin for cooling the air tank 2, the discharge-side air pipe 10 can be cooled first, and when the discharge-side air pipe 10 becomes low in temperature, the high temperature of the air tank 2 is discharged. Since the heat is radiated to the side air pipe 10, it is effective in cooling the air tank 2. In addition, compressor 4
Since the cooling fan 5 and the air tank 2 can be arranged close to each other, the cooling fan 5 of the compressor 4 can be used also as a fan for cooling the air tank 2, and the soundproof engine driving work can be performed. The rise in temperature inside the machine could be suppressed.

[0008]

Next, an embodiment will be described. FIG. 1 is a plan view of a soundproof engine-driven working machine of the present invention, FIG. 2 is a front view of the soundproof engine-driven working machine of the present invention, FIG. 3 is a plan view of a part of an air tank 2, and FIG. FIG. 5 is a side view of the periphery of the air tank 2.

FIG. 1 and FIG. 2 will be described. The engine E, the generator 3, the compressor 4, and the air tank 2 are arranged on the body frame 12. Engine E and generator 3
Are arranged in series, and the engine E and the compressor 4 are arranged in parallel. The air tank 2 is disposed at a position diagonal to the engine E. The air tank 2 is arranged on the compressor 4 side of the cooling fan 5. Engine E
And the generator 3 are driven in a state in which a crankshaft or a camshaft is directly connected. Engine E and compressor 4
It is driven via pulleys 22 and 23 and a V-belt. A battery 21 is disposed at the lower left of the engine E. The muffler 1 of the engine E is located at the lower left of the generator 3.
8, and an exhaust extension pipe 25 of the muffler 18.
However, it is configured to wind around the muffler 18 and further exhaust to the outside through the exhaust pipe chamber 17.

A cooling fan 5 is arranged on the side of the compressor 4 facing the air tank 2, and an exhaust duct 15 is provided in the discharge direction of the cooling fan 5. The exhaust air discharged from the cooling fan 5, passes around the compressor 4, and cools the compressor 4, is exhausted from the exhaust duct 15 to the outside through the opening of the soundproof case 1. FIG.
As shown in the figure, an intake port 6 of the cooling fan 5 is opened below the air tank 2. The cooling air sucked by the cooling fan 5 is sucked not through the side surface of the soundproof case 1 but through the air inlet 6 opened in the body frame 12.

The cooling air sucked from the intake port 6 is sucked by the cooling fan 5 while cooling the periphery of the air tank 2, discharged to the periphery of the compressor 4 and discharged from the exhaust duct 15 while cooling. You. In such a configuration, the discharge side air pipe 10 is wound around the air tank 2. 28 is an air cleaner of the compressor 4. In the lower part of the body frame 12, caster wheels 19
19 are arranged. A control box 9 is provided on the side of the soundproof case 1, and compressed cock discharge cocks 8 a and 8 b protrude from the control box 9.

3, 4 and 5, the air tank 2
The configuration of the discharge-side air pipe 10 arranged around this will be described. An inlet-side air pipe 11 is arranged on the compressor 4 side of the air tank 2. The inlet side air pipe 11 is connected to a discharge port of the compressor 4 at a joint 11a. Then, compressed air is stored inside the air tank 2 and discharged from the discharge side air pipe 10. The discharge-side air pipe 10 protrudes from the upper portion of the air tank 2, makes a round around the air tank 2 from above to below, and opens to the discharge cocks 8 a and 8 b provided in the control box 9. A branch joint 16 is provided in front of the discharge cocks 8a and 8b.
Are provided, and discharge can be performed from two discharge cocks 8a and 8b. Pressure adjusting valves 7a and 7b are branch joint 1
6 protrudes upward.

[0013]

As described above, the present invention has the following advantages. In the soundproof engine-driven working machine in which the compressor 4 is driven by the engine, the air tank 2 is disposed on the cooling fan 5 side of the compressor 4, and the cooling air is provided at a position below the air tank 2 of the soundproof case 1. Since the air inlet 2 is opened and the surroundings of the air tank 2 are cooled by suction of the cooling fan 5, the soundproof engine-driven working machine is placed in a narrow place where it is difficult to exhaust air, or when it is arranged in close contact with a wall surface of a building. However, since the periphery of the air tank 2, which is most likely to be at the highest temperature, is cooled, the temperature of the portion of the air tank 2 does not rise, so that the hose does not rupture or expand due to the high temperature and comes off.

According to a second aspect, in the air tank 2,
Since the discharge side air pipe 10 is extended and wound around the air tank 2, the extended discharge side air pipe 1
Since 0 serves as a fin for cooling the air tank 2,
The discharge-side air pipe 10 can be cooled first, and when the discharge-side air pipe 10 has a low temperature, the high temperature of the air tank 2 is radiated to the discharge-side air pipe 10, which is effective in cooling the portion of the air tank 2. is there.

According to a third aspect of the present invention, in a soundproof type engine driven work machine in which a generator and a compressor 4 are driven by an engine E disposed inside a soundproof case 1, the generator is arranged in series with the engine E, and The other compressor 4 is arranged in parallel with the engine E, driven by a transmission means, and the air tank 2 is mounted on the side of the cooling fan 5 of the compressor 4 at a position diagonal to the engine E. Since the cooling fan 5 is disposed, the cooling fan 5 of the compressor 4 and the air tank 2 can be disposed close to each other, so that the cooling fan 5 of the compressor 4 can also be used as a fan for cooling the air tank 2. Thus, it was possible to suppress the rise in temperature inside the soundproof engine-driven working machine.

[Brief description of the drawings]

FIG. 1 is a plan view of a soundproof engine-driven working machine according to the present invention.

FIG. 2 is a front view of the soundproof engine-driven working machine of the present invention.

FIG. 3 is a plan view of a part of the air tank 2.

FIG. 4 is a front view of the periphery of the air tank 2;

FIG. 5 is a side view around the air tank 2;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Soundproof case 2 Air tank 3 Generator 4 Compressor 5 Cooling fan 6 Intake port 8a / 8b Discharge cock 9 Control box 10 Discharge side air pipe 11 Inlet side air pipe 12 Body frame

Claims (3)

(57) [Claims] 1. A soundproof engine-driven working machine in which a compressor 4 is driven by an engine.
The air tank 2 is disposed on the side of the cooling fan 5, a cooling air inlet is opened at a position below the air tank 2 in the soundproof case 1, and the periphery of the air tank 2 is cooled by suction of the cooling fan 5. A soundproof engine driven work machine. 2. The air tank 2 according to claim 1, wherein
A soundproof engine-driven working machine characterized in that the discharge side air pipe (10) is extended and wound around the air tank (2). 3. In a soundproof engine-driven working machine in which a generator and a compressor 4 are driven by an engine E disposed inside a soundproof case 1, the generator is disposed in series with the engine E and is directly connected to a rotating shaft of the engine E. The other compressor 4 is arranged in parallel with the engine E, driven via transmission means, and the air tank 2 is arranged on the side of the cooling fan 5 of the compressor 4 at a position diagonal to the engine E. Features a soundproof engine-driven work machine.