JPH05195807A - Sound insulating type engine working machine - Google Patents

Abstract

PURPOSE:To simplify frame structure, and carry out disassembly and assembly easily, in a sound insulating type engine working machine such as an engine power generator and the like. CONSTITUTION:A rear surface plate 2, an exhaust chamber separating plate 9, an intake chamber separating plate 10, and a front surface plate 3 are erected on a frame base plate 5, and are covered with a main case 1 formed in an inverted U-shape from the upside of those erected plates 2, 3, 9, 10, to fix each other. The frame base plate 5 is composed of one plate, and inverted U-shaped bent parts 5a are formed on right and left ends of the frame base plate 5. Wheels 6 are inserted from the lower part of the inverted U-shaped bent part 5a, and supported by bearning. A rear base plate 18 and a front base plate 19 are fixed to the front and rear ends of the frame base plate 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a frame support structure for a soundproof engine working machine such as an engine generator.

[0002]

2. Description of the Related Art Conventionally, a technique relating to a frame supporting mechanism of a soundproof engine working machine has been publicly known.
For example, Japanese Utility Model Laid-Open No. 61-95945 and Japanese Utility Model Laid-Open No. 61-95945.
This is like the technique described in Japanese Patent No. 95943.

[0003]

Even in the conventional soundproof engine working machine, there is a technique for assembling the main case having an inverted U-shape from above to assemble the exhaust chamber partition plate. No suction chamber partition plate is provided,
The whole was constructed in one room. In addition, the main case was first fixed to the frame base plate, and then the rear plate and the front plate were fixed to the main case later.
According to the present invention, the rear plate, the front plate, the exhaust chamber partition plate, and the suction chamber partition plate are first arranged by projecting from the frame base plate, and the main case is put on the rear plate, the exhaust chamber partition plate, and the suction chamber partition plate so that they can be easily assembled and disassembled. I configured it. Further, in the conventional structure of the frame base plate, as in the conventional technique shown in FIGS.
The bearing auxiliary plates 21 and 21 are welded and fixed to the frame base plate 20 to support the wheels 22, and as shown in FIG. 7 and FIG. 8, the axle 26 is fixedly installed below the frame base plate 25. The wheel 22 was bearing-supported by 26. In the present invention, the shape of the frame base plate 5 is simply configured.

[0004]

The problems to be solved by the present invention are as described above, and the means for solving the problems will be described below. That is, a rear plate, an exhaust chamber partition plate, a suction chamber partition plate, and a front plate are erected on a frame base plate, and a main case configured in an inverted U shape is covered from above the erected plate. Then fix it.

Further, the frame base plate 5 is composed of one plate, and "U" -shaped bent portions 5a are formed at the left and right ends, and the wheels 6 are attached to the "U" -shaped bent portions 5a from below. The rear base plate 18 and the front base plate 19 are fixed to the front and rear ends of the frame base plate 5 by inserting and supporting the bearings.

[0006]

[Operation] Next, the operation will be described. Since the present invention is configured as in claim 1, the exhaust chamber B is formed between the rear plate 2 standing upright from the frame base plate 5 and the exhaust chamber partition plate 9, and the exhaust chamber partition plate 9 and the suction chamber partition plate 10 are formed. A chamber for the engine E and the generator D is formed between the suction chamber A and the front plate 3, and a suction chamber A can be formed between the suction chamber partition plate 10 and the front plate 3. However, the low temperature cooling air is always sucked without returning to the suction side again.

Since the frame base plate is not a welded combination of two plates as in the conventional case, the frame base plate is constructed as described in claim 2.
Since it can be configured with one plate, the manufacturing process of the frame base plate 5 by pressing can be simplified. Further, a rear base plate 18 and a front base plate 19 are provided at the front and rear ends of the frame base plate 5.
Since it was fixed, it was possible to reliably seal the intake and exhaust.

[0008]

EXAMPLES Next, examples of the present invention will be described. 1 is an exploded perspective view for explaining the assembly sequence of the soundproof engine working machine of the present invention, FIG. 2 is a side sectional view of the soundproof engine working machine of the present invention, and FIG. 3 is a soundproof engine working machine of the present invention. FIG. 4 is a front view showing the configuration of the wheels 6 and the frame base plate 5, FIG. 4 is a perspective view of the frame base plate 5, the front base plate 19 and the rear base plate 18 in an exploded state, and FIG. 5 is a conventional frame base plate 20 and wheels. 22 is a front view showing the support portion of FIG. 22, and FIG. 6 is also the frame base plate 20 of FIG.
FIG. 7 is also a perspective view of another conventional frame base plate 25 and wheel 2.
2 is a front view showing the support mechanism of FIG. 2, and FIG. 8 is a perspective view showing the frame base plate 25 of the prior art shown in FIG.

The overall arrangement of the soundproof engine working machine will be described with reference to FIG. The case constituting the soundproof wall is composed of an inverted U-shaped main case 1 for covering the upper and front and rear side surfaces, a rear face plate 2, a front face plate 3, and a lower frame base plate 5. The fuel tank 32 is held at a position above the main case 1 having an inverted U shape.
Further, a generator support frame 27 and an engine support frame 28 are projectingly provided under the frame base plate 5, and a generator D and an engine E connected by an engine module 31 on the generator support frame 27 and the engine support frame 28.
Are mounted via a vibration preventive body. Further, a suction chamber partition plate 10 and an exhaust chamber partition plate 9 are erected on the frame base plate 5. The lower side of the frame base plate 5 is supported by wheels 6. Further, a discharge port 15 of the exhaust pipe 16 and a cooling air discharge port 34 from the exhaust chamber B are opened in the rear plate 2.

As shown in FIG. 2, an exhaust chamber B in which a secondary muffler 7 is arranged between the rear plate 2 and the exhaust chamber partition plate 9 constitutes an exhaust chamber B, and a suction is provided between the front plate 3 and the suction chamber partition plate 10. Room A
And the engine fan case 30 in the suction chamber A.
And the suction port of the air cleaner 33 is arranged. The cooling air sucked from the fan of the engine fan case 30 of the engine E passes through the cylinder head and the cylinder of the engine E, passes through the inside of the muffler chamber 11, cools the primary muffler 12, and the exhaust chamber B Is discharged. Then, the secondary muffler 7 is cooled, and the secondary muffler 7 is discharged to the outside air from the portion of the discharge hole 34 formed in the rear face plate 2. The cooling air from the cooling fan of the generator D provided in the engine module 31 is discharged into the muffler chamber 11 through the upper hole of the generator D and passes through the muffler chamber 11. ,
It is discharged from the discharge hole 34 as described above.

Exhaust gas from the engine E passes through a primary muffler 12 inside a muffler chamber 11 and a connecting bracket 13
And the connection of 14 through the flexible pipe 8,
The exhaust pipe 16 is supplied to the secondary muffler 7 in the exhaust chamber B, and the exhaust pipe 16 is connected to the opening 15 opened in the rear face plate 2, so that the exhaust pipe 16 is exhausted to the outside air. The secondary muffler 7 is fixed on the frame base plate 5 by mounting brackets 17. Reference numeral 4 is a control panel.

Next, referring to FIG. 1, the order of assembling the soundproof engine working machine will be described. First, the engine E and the generator D integrated by the engine module 31 are placed and fixed on the generator support frame 27 and the engine support frame 28 of the frame base plate 5. Next, the suction chamber partition plate 10 and the exhaust chamber partition plate 9 are fixed onto the frame base plate 5. The engine fan case 3 is provided between the suction chamber partition plate 10 and the engine E.
The zero portion is sealed and the air cleaner 33 and the suction chamber partition plate 10 are sealed so that the cool air is sucked only by the engine fan case 30 and the air cleaner 33. Further, when the exhaust chamber partition plate 9 is fixed, the seal between the muffler chamber 11 and the exhaust chamber partition plate 9 is ensured so that the high temperature exhaust gas does not return.

Next, the front plate 3 integrated with the control panel 4 is fixed to the front base plate 19, and when the control panel 4 is fixed, an electric system is connected and the regulator E and the engine E are connected. Connect the remote control wire, etc. Next, attach the secondary muffler 7 to the bracket 13 of the primary muffler 12.
The bracket 14 is fixed. The secondary muffler 7 is fixed to the frame base plate 5 at the bracket 17. Next, the rear rear plate 2 is fixed to the rear base plate 18. The front plate 3 and the rear plate 2 are also sealed and fixed so that air does not leak.

As described above, with the rear plate 2, the exhaust chamber partition plate 9, the suction chamber partition plate 10 and the front plate 3 fixed on the frame base plate 5, the fuel tank 32 is held from above. Main case 1 is covered, frame base plate 5 and rear plate 2
And fixed to the front plate 3. Then, a hand is inserted through the maintenance hole 1a opened on the side surface of the main case 1 to connect the fuel tank 32 and the portion of the fuel pump and the return pipe from the nozzle to the fuel tank 32.

Next, referring to FIGS. 3 and 4, the frame base plate 5
The support structure of the wheels 6 will be described. In the present invention, the frame base plate 5 is formed by bending one plate. The wheel 6 is bearing-supported at the "U" -shaped bent portion 5a. The frame base plate 5 is formed by bending only one plate, and front and rear parts thereof are reinforced by a front base plate 19 and a rear base plate 18 in order to reinforce a weak portion in strength. See also
A generator support frame 27 on which the generator D and the engine E are mounted and an engine support frame 28 are erected and fixed between the mold folding parts 5a and 5a.

[0016]

Since the present invention is configured as described above, it has the following effects. That is, since it is configured as in claim 1, the exhaust chamber B is formed between the rear plate 2 standing upright from the frame base plate 5 and the exhaust chamber partition plate 9, and the exhaust chamber partition plate 9 and the suction chamber partition plate 10 are formed. Between engine E and generator D
The chamber can be configured, and the suction chamber A can be configured between the suction chamber partition plate 10 and the front plate 3. The noise generated in each chamber can be eliminated, and high-temperature exhaust gas does not return to the suction side again at all times. The low-temperature cooling air came to be sucked in.

Since the frame base plate is not a welded combination of two plates as in the conventional case, the frame base plate is not a welded combination.
Since it can be configured with one plate, the manufacturing process of the frame base plate 5 by pressing can be simplified. Further, a rear base plate 18 and a front base plate 19 are provided at the front and rear ends of the frame base plate 5.
Since it was fixed, it was possible to reliably seal the intake and exhaust.

[Brief description of drawings]

FIG. 1 is an exploded perspective view illustrating an assembly sequence of a soundproof engine work machine of the present invention.

FIG. 2 is a side sectional view of the soundproof engine work machine of the present invention.

FIG. 3 is a front view showing the configuration of wheels 6 and a frame base plate 5 of the soundproof engine work machine of the present invention.

FIG. 4 is a frame base plate 5, a front base plate 19 and a rear base plate 18.
FIG.

FIG. 5 is a front view showing a conventional frame base plate 20 and a support portion of a wheel 22.

FIG. 6 is a perspective view of the frame base plate 20 of FIG.

FIG. 7 is a front view showing another conventional frame base plate 25 and a support mechanism for the wheels 22.

8 is a perspective view showing a frame base plate 25 of the prior art of FIG.

[Explanation of symbols]

 1 Main Case 2 Rear Plate 3 Front Plate 4 Control Panel 5 Frame Base Plate 5a “U” Type Bent Section 6 Wheels 7 Secondary Muffler 8 Flexible Pipe 9 Exhaust Chamber Partition Plate 10 Suction Chamber Partition Plate 11 Muffler Chamber 12 Primary Muffler 13 , 14 bracket

Claims (2)

[Claims] 1. A main case in which a rear plate, an exhaust chamber partition plate, a suction chamber partition plate and a front plate are erected on a frame base plate, and an inverted U-shape is formed on the erected plate. A soundproof engine working machine that is covered and fixed from above. 2. A bearing comprising a frame base plate formed of one plate, "U" -shaped bent portions formed at the left and right ends, and a wheel inserted into the "U" -shaped bent portions from below. A soundproof engine working machine, which is supported and has a rear base plate and a front base plate fixed to front and rear ends of a frame base plate.