JPH07197488A - Hydraulic excavator exterior cover - Google Patents

Abstract

(57) [Summary] [Purpose] Opening and closing one exterior cover enables maintenance and inspection of two rooms. [Structure] A partition plate 3 for blocking heat from the engine room 1 is provided between the engine room 1 and the other vehicle-body-surrounding device room 2, and an exterior cover can be opened and closed by a hinge 5 provided on the vehicle body side 4, The front cover 6 extending from the other vehicle body surrounding device room 2 to the engine room 1 across the top of the partition plate 3 and the hinge 8 provided on the counter weight 7 in the rear part of the engine room 1 can be opened and closed to the front of the engine room 1. It is composed of a rear cover 9 which covers a portion which does not overlap with the cover 6.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cover for an engine room of a construction machine, and more particularly to an outer cover for a hydraulic excavator.

[0002]

2. Description of the Related Art Generally, in a construction machine, for example, FIG.
As shown in the side view of the hydraulic excavator in the side view, the engine room 21 including the pump and the other vehicle body side 22 are separated from each other by a partition plate 23 in order to block noise generated from the engine room 21 side. For maintenance and inspection of the pump and other maintenance and inspection on the vehicle body side, separate covers 24 and 25 provided respectively are opened. In this case, the cover 24 of the engine compartment 21 can be opened and closed by a hinge 27 provided between the cover 24 and a counterweight 26 provided next to the cover 24. It can be opened and closed by a hinge 29 provided between the two.

On the other hand, an outer cover such as an engine room cover and other vehicle body side device covers and a tool box have different purposes. That is, the outer cover can be serviced and inspected by opening it, and the tool box stores tools.

[0004]

Therefore, in the case of the maintenance and inspection described in the preceding two paragraphs, both covers must be opened and closed respectively, which is troublesome and the closed state as in the case of the preceding paragraph. But since it is difficult to seal it,
Even if the tool was put in the cover, there was a problem that the tool moved inside due to vibration of the vehicle body during running or work, and the whereabouts of the tool were lost.

In view of this, the first aspect of the present invention enables maintenance and inspection of two rooms by opening and closing one exterior cover, and the second aspect of the present invention integrates the exterior cover and the tool box. The purpose of the present invention is to provide an exterior cover for a hydraulic excavator that does not require the installation of a dedicated tool box to solve the drawbacks of the prior art.

[0006]

In order to achieve the above object, a first aspect of the present invention is to provide an outer periphery of an engine room, other vehicle body surrounding device rooms in front of the engine room, and an outer cover for covering these two rooms. In the above, a partition plate for blocking heat from the engine room is provided between the engine room and other vehicle body surrounding equipment rooms, and the exterior cover can be opened and closed by a hinge provided on the vehicle body side. A front cover that extends to the engine room from the top of the partition plate to the engine room, and a rear cover that can be opened and closed by a hinge provided on a counter weight in the rear part of the engine room and covers a portion that does not overlap with the front cover of the engine room. According to a second aspect of the present invention, there is provided a bottom plate and side surfaces on the left and right sides in the other vehicle body surrounding device room. Is provided, and the closed space formed by the partition plate and the front cover is a tool box. In the third invention, the front cover is an inclined surface and a horizontal step is formed as a step in the middle. It is characterized by

[0007]

According to the above construction, in the first aspect of the present invention, if the front cover is opened, maintenance and inspection of the engine room and other vehicle body surrounding equipment rooms can be performed only once. Further, in the second invention, the tool box is provided in the tightly closed space in the front cover to facilitate the storage of the tool, and in the third invention, the step is provided in the front cover to provide the interior of the engine room. It can be used as a springboard for maintenance and inspection by opening only the rear cover.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the embodiments shown in FIGS. The exterior cover of the hydraulic excavator according to the first aspect of the present invention is, as shown in FIGS. 1 and 2, an engine room 1, other vehicle body surrounding device room 2 in front of the engine room 1, an exterior cover for covering these rooms, and the like. A partition plate 3 for shutting off heat from the engine room 1 is provided between the engine room 1 and the other vehicle-body-surrounding device room 2, and the exterior cover is provided by a hinge 5 provided on the vehicle body side 4. It can be opened and closed by a front cover 6 that extends from the other vehicle body surrounding device room 2 to the engine room 1 across the top of the partition plate 3, and a hinge 8 provided on a counterweight 7 in the rear part of the engine room 1. The rear cover 9 covers a portion of the engine room 1 that does not overlap with the front cover 6.

The engine room 1 is provided at the rear part of the revolving structure 10 and is provided with a canter weight 7 which is arcuate in a plan view from the periphery thereof to the rearmost part thereof. In addition to the engine, the engine room 1 also serves as a room for pumps and the like. The other vehicle body surrounding device room 2 is on the front side of the engine room 1, and the hydraulic oil tank 1 is on the right front side thereof.
2. A cab 13 is provided on the left front side of the cab 13, and a rev frame 14 for connecting a base end of a boom or the like of a working machine (not shown) is provided immediately forward of the cab 13. The front cover 6 is the vehicle body side 4
There is an inclined surface for preventing sediment accumulation so that it rises from a lower position connected by a hinge 5 to a higher position in the rear part, and a horizontal step portion which is step 6a is formed in the middle. In addition, the front cover 6 is the partition plate 3
It engages with the top portion 3a of the above so that it can be easily attached to and detached from the top portion 3a when opening and closing.

Next, the operation will be described. When the front cover 6 is rotated in the direction of opening as shown by the arrow with the hinge 5 serving as a fulcrum at the time of maintenance and inspection, both the engine room 1 and the other vehicle body surrounding device room 2 can be easily seen.
Maintenance and inspection becomes easier. Further, in the case of servicing only the engine room 1, if the rear cover 9 is rotated in the arrow direction with the hinge 8 as a fulcrum, the inside of the engine room 1 is covered with the front cover 6.
You can check from different angles that do not overlap with. In this case, the step 6a of the front cover 6 can be used as a step.

As shown in FIG. 3 (a part of FIG. 2 is enlarged), the second aspect of the present invention includes a bottom plate 15 and left and right side plates 16 in the other vehicle body surrounding device room 2 of the first invention. Are fastened with bolts or the like, and the partition plate 3 and the front cover 6 are fastened.
The closed space formed by and is the tool box 17. Therefore, by storing the tool 18 in the tool box 17, there is no problem that the tool 18 is moved and the whereabouts cannot be known due to vibration caused by running of a vehicle or operation of a working machine as in the conventional case. Moreover, when taking it out, it can be performed by simply opening the front cover 6.

[0012]

As described above, the first aspect of the present invention is to provide an engine room including an engine room, a vehicle body surrounding device room in front of the engine room, and an exterior cover for covering these rooms. A partition plate for blocking heat from the engine room is provided between the other vehicle body equipment room and the vehicle body equipment room, and the exterior cover can be opened and closed by a hinge provided on the vehicle body side. Of a front cover that extends to the engine room by straddling the top of the engine room and a rear cover that can be opened and closed by a hinge provided on the counter weight at the rear of the engine room and covers a portion that does not overlap with the front cover of the engine room. The maintenance of the engine room and other vehicle surroundings rooms can be performed by opening and closing only one front cover. Will be capable of, annoyance is not necessary to open and close as in the prior art separate cover. Further, in the second invention, since the bottom plate and the side plates on the left and right are provided in the other vehicle body surrounding device room, and the closed space formed by the partition plate and the front cover is a tool box,
Since the storage position of the tool is fixed and the tool can be taken out easily, in the third aspect of the invention, the front cover is an inclined surface and a horizontal step portion is formed in the middle, so that it can be used as a stepping stone for maintenance and inspections and other occasions. It has the convenience.

[Brief description of drawings]

FIG. 1 is a plan view of an embodiment of an exterior cover of a hydraulic excavator according to the present invention.

FIG. 2 is a side view of FIG.

FIG. 3 is a side view of an embodiment of an exterior cover for a hydraulic excavator according to the second aspect of the present invention.

FIG. 4 is a side view showing an exterior cover of a conventional hydraulic excavator such as an engine room.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Engine room, 2 ... Other vehicle body equipment room, 3 ... Partition plate, 4 ... Vehicle side, 5 ... Hinge, 6 ... Front cover, 7 ... Counterweight, 8 ... Hinge, 9 ... Rear cover, 15 ... Bottom plate , 16 ... Side plate, 17 ... Tool box.

Claims (3)

[Claims] 1. An engine room, a vehicle body surrounding device room in front of the engine room, an exterior cover covering both of these rooms, and an engine cover between the engine room and the other vehicle body surrounding device rooms. A partition plate for shutting off heat from the room is provided, and the exterior cover can be opened and closed by a hinge provided on the vehicle body side, and a front cover that extends from the other vehicle surrounding device room to the engine room across the top of the partition plate. An exterior cover for a hydraulic excavator, comprising a rear cover that can be opened and closed by a hinge provided on a counter weight at a rear portion of the engine room and that covers a portion that does not overlap with a front cover of the engine room. 2. A tool box provided with a bottom plate and side plates on the left and right sides in the other vehicle-body-surrounding device room, and a closed space formed by the partition plate and the front cover is used as a tool box. Exterior cover of hydraulic excavator. 3. The exterior cover for a hydraulic excavator according to claim 1, wherein the front cover is an inclined surface, and a horizontal step is formed as a step in the middle.