JP2000088185A - Package type engine work machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To miniaturize a package in order to reduce the installing and storing place of an engine machine, and facilitate handling. SOLUTION: In a package type engine work machine 1 for storing a work machine such as an engine 3 and a generator 5 in a package 2, and arranging part of the exhaust pipe 14 of the engine 3 near to the package ceiling surface; an approaching part 14a to the package ceiling surface of the pipe 14 is formed into a flat wide width shape, and also is constituted so as to make cooling air passable through the said part 14a.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technique for compactly constructing a package type engine working machine in which an engine and a working machine are housed in one package.

[0002]

2. Description of the Related Art Conventionally, as an engine working machine, there has been known a package-type engine working machine in which an engine and working machines such as a generator and a pump driven by the engine are housed in one package. ing. An exhaust pipe, a muffler, a radiator, a fuel tank, and the like are housed in the package of such a packaged engine working machine in addition to the engine and the working machine. A lifting bracket for lifting the mold engine working machine by a hook is provided.

[0003]

However, in the engine working machine as described above, since many members are housed in a package, the above-mentioned lifting metal fittings may be displaced from the outer shape of the package (from the package ceiling surface). The upper part of the engine has been tending to be large because it is constructed so that it does not protrude, and in recent years it has tended to be large. Therefore, it is desired to reduce the size of the package.

[0004]

The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described. That is, in the package-type engine working machine according to claim 1, wherein the engine and the working machine are housed in a package, and a part of an exhaust pipe of the engine is arranged close to a ceiling surface of the package. The vicinity of the ceiling surface is formed in a flat and wide shape, and the cooling air is configured to be able to pass through the vicinity.

According to a second aspect of the present invention, there is provided a package-type engine working machine in which an engine and a working machine are housed in a package, wherein a center frame erected on each of right and left sides of the package is provided. And a roof frame, which is installed laterally in the left and right direction, to form a portal frame.

According to a third aspect of the present invention, in the package-type engine working machine according to the second aspect, a plurality of rod-shaped members are erected on the roof frame to form a lifting bracket for lifting the engine working machine. did.

[0007]

Next, an embodiment of the present invention will be described. FIG. 1 is a side view showing a package type engine working machine of the present invention, FIG. 2 is a plan view thereof, FIG.
4 is a side sectional view showing a cooling air inlet, FIG. 5 is a side sectional view showing a cooling air inlet having a different form from the cooling air inlet in FIG. 4, FIG. 6 is a plan view showing a lifting bracket, and FIG. FIG. 8 is a side sectional view showing the same, and FIG. 8 is a side view showing the lifting hardware with the hook hooked.

First, the configuration of the package type engine working machine of the present invention will be described. In the engine working machine 1 shown in FIGS. 1 to 3, a package 2 as an exterior component is placed above the left and right base frames 4, 4, and the engine 3 is housed in the package 2. Engine 3
Is connected to a generator 5 which is a working machine driven by the engine 3. A cooling fan 3a provided with a flywheel is disposed on the anti-generator 5 side (flywheel side in this embodiment) of the engine 3.
The radiator 10 is arranged so as to face a, and a muffler 13 is arranged on the side of the radiator 10 opposite to the engine 3. The cooling air from the cooling fan 3a flows from the engine 3 toward the muffler 13 side.

A fuel tank 6 is disposed below the radiator 10 and the muffler 13, and a fuel supply port 6c for supplying fuel oil to the fuel tank 6 is provided at an upper portion of the fuel tank 6 (in the present embodiment, the inside of the fuel tank 6). It is provided on the upper surface 6b) of the fuel tank 6, so that the fuel supply port 6c is arranged at a high position even though the fuel tank 6 is arranged at a low position, thereby facilitating refueling work.

A center frame 15 is erected substantially at the center of the base frames 4, 4 in the front-rear direction (the left-right direction in FIG. 1). A roof frame 16 formed in a “U” shape is horizontally provided in the left-right direction, and is disposed substantially at the center in the front-rear direction. The roof frame 16 is configured to have the vertical dimension as small as possible. And
The lower end of the center frame 15 is
a, the upper end of the center frame 15 is connected to a roof frame 16 via a spacer 17 by an upper bracket 15b. That is, the center frames 15 and 15 and the roof frame 16 are integrally connected to form a portal frame 19 for reinforcing the strength of the package 2.
A lifting bracket 18 for lifting the engine working machine 1 is provided substantially at the center of the left and right sides of the roof frame 16. The lifting hardware 18 is arranged at the position of the center of gravity of the engine working machine 1 in the horizontal direction.

As described above, the portal frames 19 are connected to the center frames 15 and 15 erected on the base frames 4.4.
And the roof frame 16 provided laterally on the ceiling surface in the package, the height of the portal frame 19 can be reduced, and the roof frame 16 and the roof A large space between the upper end of the engine 3 and the lower portion of the engine frame 16 can be secured. As a result, the engine working machine 1 can be configured to be low and compact, and a large maintenance space can be secured for the upper portion of the engine 3 such as the cylinder head. Further, by making the vertical dimension of the roof frame 16 small, it is possible to further make the engine working machine 1 low and compact, and to secure a wide maintenance space at the upper end of the engine 3.

Further, cooling air inlets 2a and 2b are formed on both side surfaces of the package 2, and the cooling air inlets 2a and 2b are formed.
The configuration is such that outside air is taken into the engine working machine 1 from 2b as cooling air. Cooling air inlets 2a and 2b
The cooling air introduced into the engine working machine 1 is sent to the muffler 13 side by the cooling fan 3 a while cooling the generator 5 and the engine 3, and is formed on the upper surface of the package 2 after cooling the muffler 13. The air is discharged to the outside from the discharged air outlet 2c.

An exhaust pipe 14 for guiding the exhaust gas of the engine 3 from the engine 3 to the muffler 13 passes above the engine 3 and above the radiator 10 and is connected to the muffler 13. The portion where the exhaust pipe 14 passes above the radiator 10 is close to the ceiling surface of the package 2 and is configured as a proximity portion 14a. The proximity portion 14a is formed in a flat and wide shape having a small vertical dimension and a large horizontal dimension. Also, the proximity portion 14a
The exhaust port 2c is formed above the exhaust pipe 14 so that the cooling air from the cooling fan 3a is discharged after cooling the adjacent portion 14a of the exhaust pipe 14.

Since the proximity portion 14a of the exhaust pipe 14 is formed in a flat and wide shape, a large area where cooling air from below comes into contact with the proximity portion 14a can be ensured. It is possible to increase the effect. In addition, by configuring the proximity portion 14a to have a flat wide shape and a small vertical dimension, the vertical size of the proximity portion 14a in the package 2 can be reduced, and the height of the package 2 can be reduced. The size of the package 2 can be reduced. Further, the proximity portion 14a having a flat and wide shape has a larger cross-sectional area than the exhaust pipe 14 in a portion other than the proximity portion 14a, so that the proximity portion 14a functions as an expansion chamber, and the exhaust pipe 14 This makes it possible to produce a silencing effect on exhaust gas passing through the inside.

As shown in FIG. 4, a cooling air inlet 2a for introducing cooling air into the engine generator 1 has an opening 21 formed on a side surface of the package 2 and an upper side inside the opening 21. An air guide passage 25 directed to the outside is formed by the inner plate 22. An upper plate 23 is provided at the upper end of the air guide passage 25 so that the cooling air passing through the air guide passage 25 is introduced into the engine generator 1 from the air inlet 26. A sound absorbing material 24 such as a sponge-like member or glass wool is attached to the lower surface of the upper plate 23 to absorb noise generated when cooling air is introduced into the engine generator 1 from the cooling air inlet 2a. Like that. Further, noise generated from the engine 4 and the generator 5 is prevented from being leaked to the outside by being absorbed by the sound absorbing material 24 or attenuated while passing through the wind guide passage 25. As described above, when the noise in the engine working machine 1 passes through the wind guide passage 25, the noise is refracted and attenuated from the wind guide port 26 to the opening 21 and is absorbed by the sound absorbing material 24. Opening 2
Even when the distance between the side surface of the package 2 on which the package 1 is formed and the inner plate 22 is small, a high noise reduction effect can be achieved.

The cooling air inlet 2b shown in FIG. 5 has an opening 21 on the side of the package 2,
Is formed by the inner plates 28 and 29 on the inner side. The air guide passage 30 extends upward from the opening 21 and then turns downward to extend to the air guide port 31. The cooling air that has entered through the opening 21 passes through the airflow passage 30 and is introduced into the engine generator 1 from the airflow opening 31. In addition, the noise generated from the engine 4 and the generator 5 is blocked by the inner plates 28 and 29, and is bent and attenuated when passing through the wind guide passage 30, and is silenced by a high noise reduction effect. Leakage to the outside from the inlet 2b is prevented.

As shown in FIGS. 6 and 7, the lifting bracket 18 is attached to the roof frame 16 with mounting members 37, 37.
A plurality of (two in this embodiment) rod-shaped members 36.3
6 is constructed. The rod members 36 are arranged side by side in the horizontal direction, and are attached to the upper ends of the attachments 37. Then, when the engine working machine 1 is lifted, as shown in FIG. 8, the hook 38 is hooked on the lifting hardware 18 thus configured.

In order to hook the hook 38 on the lifting bracket 18, the rod-shaped members 36.
A height dimension H of the space below 36 is required. However, as described above, the roof frame 16 is configured to have the vertical dimension as small as possible.
6 and 36 are attached to the upper end of the roof frame 16, and the rod-shaped members 36 and 36 are formed as small as possible in diameter, so that the height H is secured to be large. Since a plurality of the rod-shaped members 36 are arranged side by side in the horizontal direction, even when the rod-shaped members 36 are formed to have a small diameter, the strength at the time of lifting with the hooks 38 can be sufficiently increased without reducing the height dimension H. It can be secured.
As described above, the plurality of rod-shaped members 3 are attached to the roof frame 16.
By constructing the lifting bracket 18 by laying the 6.36, the height of the roof frame 16 is limited,
The height dimension H of the space below the lifting bracket 18 can be as large as possible, and the strength of the lifting bracket 18 when lifting with the hook 38 can be sufficiently ensured.

[0019]

As described above, the present invention has the following advantages. That is, as described in claim 1, the portion of the exhaust pipe close to the package ceiling surface is formed in a flat and wide shape, and the cooling air is configured to be able to pass through the close portion, so that the close portion is cooled from below. A large area where the wind contacts can be secured, and the cooling effect of the exhaust pipe can be enhanced. In addition, by forming the adjacent portion to have a flattened wide shape and having a small vertical dimension, the vertical portion occupied by the proximity portion in the package can be reduced, and the height of the package can be reduced. The size of the package can be reduced. Further, the proximity portion having the flat wide shape can be configured to have a larger cross-sectional area than the exhaust pipe in a portion other than the proximity portion while keeping the dimension in the vertical direction small, so that the cross-sectional area of the proximity portion is increased. With such a configuration, it functions as an expansion chamber, and the proximity portion can provide a sound deadening effect of exhaust gas passing through the exhaust pipe.

Further, as described in claim 2, the center frames erected on both the left and right sides in the package and the roof frame laid horizontally on the ceiling surface in the package in the left-right direction are integrally connected. As a result, the height of the portal frame can be reduced, and the space between the roof frame and the upper end of the engine disposed below the roof frame can be reduced. It can be secured large. As a result, the engine working machine can be configured to be low and compact, and a wide maintenance space can be secured for a portion such as the cylinder head at the upper end of the engine.

Further, a plurality of rod-like members are erected on the roof frame to form a lifting bracket for lifting the engine working machine, so that the roof frame has a limited height. Among the dimensions, the height of the space below the lifting bracket can be secured as large as possible, and the lifting bracket for lifting with a hook without increasing the height dimension of the roof frame , And the lifting hardware can be provided while the package of the engine working machine is made compact.

[Brief description of the drawings]

FIG. 1 is a side view showing a package type engine working machine of the present invention.

FIG. 2 is a plan view of the same.

FIG. 3 is a front view of the same.

FIG. 4 is a side sectional view showing a cooling air inlet;

FIG. 5 is a side sectional view showing a cooling air introduction port having a different form from the cooling air introduction port in FIG. 4;

FIG. 6 is a plan view showing a lifting hardware.

FIG. 7 is a side sectional view of the same.

FIG. 8 is a side view showing the lifting hardware with the hook hooked.

[Explanation of symbols]

 H Height dimensions 1 Engine working machine 2 Package 3 Engine 4 Base frame 5 Generator (working machine) 6 Fuel tank 10 Radiator 13 Muffler 14 Exhaust pipe 14a Proximity 15 Center frame 16 Roof frame 18 Lifting bracket 19 Gate frame 36 Bar-shaped member 38 Hook

Claims (3)

[Claims] 1. A package type engine working machine in which an engine and a working machine are housed in a package and a part of an exhaust pipe of the engine is arranged close to a ceiling of the package. A package-type engine working machine characterized in that an adjacent portion is formed to have a flat and wide shape, and cooling air can pass through the adjacent portion. 2. A package type engine working machine in which an engine and a working machine are housed in a package, a center frame erected on each of left and right sides of the package, and a center frame laid horizontally on a ceiling surface in the package. A package-type engine working machine, wherein a gate-type frame is formed by integrally connecting a roof frame to be used. 3. The package-type engine working machine according to claim 2, wherein a plurality of rod-shaped members are erected on the roof frame to form a lifting bracket for lifting the engine working machine. Package type engine working machine.