JP3333987B2 - Engine oil filler for hydraulic excavator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an engine oil filler port device for a hydraulic shovel, and more particularly to an engine oil filler port device for a hydraulic shovel in which a filler port is positioned so that a refueling operation can be easily performed.

[0002]

2. Description of the Related Art A typical hydraulic excavator includes a lower traveling body and an upper revolving body which is pivotably mounted on the lower traveling body. The upper revolving body has an engine room in which an engine is housed. Are formed. The engine room is on the top,
It is formed in a substantially rectangular parallelepiped shape having a lower surface and side surfaces. One side of the engine compartment is defined by a counterweight attached to the upper revolving superstructure. Another side surface having an openable and closable side cover is formed adjacent to the counterweight. An openable / closable upper surface cover is formed on the upper surface of the engine compartment. The lower surface of the engine room is a floor frame on which the engine and other equipment are installed. Due to the features of the hydraulic excavator, the engine room of the hydraulic excavator is closed on one side by a counterweight, the other side facing the counterweight is closed by a cab and a working machine, and the remaining two sides are An openable and closable side cover is provided. A radiator for engine cooling water is provided in a place where one side cover is opened, and a hydraulic pump for discharging pressure oil which is a driving source of a hydraulic shovel is provided in a place where the other side cover is opened. Therefore, since access to the engine body for maintenance is difficult to perform by opening the side cover of the engine room, the engine oil supply port, which is one of the maintenance operations, is provided at the location where the top cover of the engine room is opened. Provided on the valve cover above the engine.

[0003] The engine oil is changed periodically or in accordance with the operating condition of the engine. The engine oil is changed in the following procedure. (1) Open the drain plug provided in the engine oil pan below the engine and discharge the old oil. (2) Transfer the new engine oil from a storage container such as a pail to an oil jug with a portable volume scale. (3) Ascend to the upper surface of the engine room, open the upper surface cover, remove the cap of the filler port of the valve cover, and pour the engine oil of the oil mug. (4) While checking the oil supply amount using the provided oil level gauge, the injection operation from the oil supply port is repeated until the specified oil amount is reached.

[0004]

The above-mentioned conventional hydraulic excavator engine oil filler device of the type described above has the following problems to be solved. (1) As the hydraulic excavator becomes larger and the engine becomes larger, the size of the body increases and the amount of engine oil used also increases, so refueling work by climbing up and down the upper surface of the engine room is heavy labor. . (2) Foreign substances such as dust easily enter the engine oil during this troublesome refueling operation. (3) Engine oil may be spilled during refueling work, thereby easily contaminating the engine, body, workers' hands, clothes, and the like.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and a technical problem thereof is to provide an engine oil filler port device for a hydraulic shovel that can easily perform a lubrication operation without climbing up and down an upper surface of an engine room. That is.

[0006]

According to the present invention, there is provided an engine oil filler for a hydraulic shovel which solves the above technical problem, wherein the engine oil filler is supplied by opening the side cover. And the oil path of the engine.
An oil supply device for an engine of a hydraulic shovel, which is connected to an engine oil supply port.

[0007]

[0008] In the engine oil filler port device of the hydraulic excavator according to the present invention, the engine oil filler port is provided at a position where the side cover of the engine compartment can be opened to supply the oil. Therefore, refueling work can be easily performed without climbing up and down on the upper surface of the engine room.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of an engine oil filler port device for a hydraulic shovel constructed according to the present invention will be described in more detail with reference to the accompanying drawings.

[0010] Referring to FIG.
The hydraulic excavator shown by the symbol
An upper revolving body 6 that is mounted on the upper part so as to be freely rotatable,
An engine room 10 in which the engine 8 is accommodated is formed in the upper swing body 6. A rear surface (right side in FIG. 1) which is one side surface of the engine room 10 is defined and closed by a counterweight 12 attached to the upper swing body 6, and is closed by the engine room 10 adjacent to the counterweight 12.
The left side surface 10a (the side shown in the direction perpendicular to the paper surface in FIG. 1) and the right side surface 10b (not shown in FIG. 1), which are the other side surfaces, have a side cover 14 that can be opened and closed on the left side surface 10a. Is a side cover 1 that can be freely opened and closed on the right side 10b.
5 are provided. An upper surface cover 16 that can be opened and closed is provided on the upper surface 10 c of the engine room 10. The front (left side in FIG. 1) of the engine room 10 is closed by a driver's cab 18 attached to the upper swing body 6, a working device 20, and the like.

Referring to FIG. 2 and FIG. 3, equipments arranged in the engine compartment 10 will be described.
Adjacent to the counterweight 12 and in parallel, the engine compartment 1
Bracket 8d erected on floor frame 10d
And 8e. The engine 8 has an oil pan 8a at its lower part, and a drain plug 8b for discharging engine oil in the oil pan 8a is provided at the bottom of the oil pan 8a. An oil filler device 22 is connected to a side surface of the oil pan 8a.
Will be described later in detail). The floor frame 10d below the drain plug 8b is provided with a drain hole 10e through which engine oil discharged from the drain plug 8b is taken out of the engine compartment 10. This drain hole 1
0e is cover 1 when engine oil is not drained.
0f is attached and closed. Side cover 14
A cooling fan 8f which is driven and rotated by the engine 8 to generate cooling air is provided at an end of the engine 8 facing the side. An oil cooler 24 and a radiator 26, which are cooled by the cooling air, are provided between the cooling fan 8f and the side cover 14. At the other end of the engine 8 facing the side cover 15, a hydraulic pump 30 that is rotationally driven by the engine 8 is attached to an engine partition 11 in the engine room 10. On the upper part of the engine 8, a valve cover 8c of an engine valve mechanism is provided. An air cleaner 28 is provided between the side cover 14 and the radiator 26.

Referring to FIG. 4, the fuel filler device 22 will be described.
The opening 11a extends through the opening 11a of the engine bulkhead 11 in the opening 0 to the side of the side cover 15 which can be opened and closed. Filling port device 22
Has a fuel supply pipe 22b in which a fuel supply port 22a is formed, and a cap 22c attached to the fuel supply port 22a. The oil supply pipe 22b is formed by welding a steel pipe and a steel member by welding. A flange 22d connected to the oil pan 8b is formed at one end of the oil supply pipe 22b, and is attached to the oil pan 8b by a bolt 22e. Thus, the fuel supply port 22a communicates with the inside of the oil pan 8b. The cap 22c is a well-known cap that is detachably attached to the fuel filler 22a. An opening 11a of the engine partition 11 through which the oil supply pipe 22b passes is provided with a seal member 11b formed of a stretchable rubber sheet and attached and closed.

A hydraulic excavator 2 having an engine oil filler device 22 as described above mainly with reference to FIG.
(1) The drain hole 10e of the floor frame 10d of the engine compartment 10 is opened by removing the cover 10f. (2) Open the drain plug 8b of the engine oil pan 8a to discharge old oil through the drain hole 11e to the outside of the engine room 10 and receive it in a suitable container (not shown). (3) Transfer the new engine oil from a storage container such as a pail to an oil jug having a portable capacity scale. (4) The side cover 15 of the engine compartment 10 is opened, the cap 22c of the oil supply port 22a of the oil supply port device 22 is removed, and the engine oil of the oil mug is injected into the oil supply port 22a. (5) While checking the amount of supplied engine oil with an oil level gauge (not shown) provided, the injection operation from the oil supply port 22a is repeated until the specified oil amount is reached. (6) The refueling worker stands on the ground when the excavator 2 is relatively small, and the lower part located lower than the upper surface 10c of the engine room 10 when the excavator 2 is relatively large. The refueling operation is performed on the crawler belt 4a of the traveling body 4. (7) Since the oil pan 8a itself is made of a steel plate, the connecting portion of the oil supply pipe 22b can be relatively easily provided. Further, since the oil pan 8a is the oil reservoir itself of engine oil, the oil pan 8a is
By connecting 2b, an efficient refueling operation can be performed in a short time.

As described above, the present invention has been described in detail based on the embodiments. However, the present invention is not limited to the above-described embodiments, and can be variously modified or modified within the scope of the present invention. It is. For example, (1) In the present embodiment, the engine oil supply port 22a is provided at a position where the side cover 15 of the engine room 10 is opened, but the oil pan 8a and the supply pipe 22b are provided.
By changing the shape, combination, etc. of the engine 8
It is needless to say that it may be provided on the side of the side cover 14 depending on the arrangement of the above. That is, the position of the engine oil filler 22a may be appropriately selected and determined according to the configuration of the engine compartment 10, the arrangement of the engine 8, and the like. (2) In the present embodiment, the engine oil supply port 22a is connected to the oil pan 8a by the oil supply pipe 22b, but the engine 8 main body (cylinder block) is provided with an opening communicating with the oil pan 8a. You may connect via a main body.

[0015]

According to the engine oil filler device of a hydraulic shovel constructed in accordance with the present invention, an engine oil filler device of a hydraulic shovel capable of performing a refueling operation without climbing up and down an upper surface of an engine room. Provided. Therefore, (1) the refueling operation can be easily performed, (2) foreign matter can be prevented from being mixed into the engine oil during the refueling operation, and (3) spillage of the engine oil during the refueling operation,
This prevents the engine, body, worker's hands, clothes, etc. from being stained.

[Brief description of the drawings]

FIG. 1 is a side view of a hydraulic shovel provided with an engine oil filler port device configured according to the present invention.

FIG. 2 is a sectional view of FIG. 1 as viewed in the direction of arrows AA.

FIG. 3 is a sectional view of FIG. 2 as viewed in the direction of arrows BB.

FIG. 4 is a detailed view of a portion A in FIG. 2, showing details of a fuel filler device;

[Explanation of symbols]

 2: Hydraulic excavator 4: Lower traveling body 6: Upper revolving body 8: Engine 8a: Oil pan 10: Engine room 12: Counter weight 14, 15: Side cover 22: Engine oil filler device 22a: Engine oil filler port

──────────────────────────────────────────────────続 き Continuing from the front page Examiner Takayoshi Fukada (56) References JP-A 4-79909 (JP, U) JP-A 4-79908 (JP, U) JP-A 4-82055 (JP, U) Sho-58-69553 (JP, U) Sho-kai 49-56337 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) E02F 9/00

Claims (1)

(57) [Claims] 1. An undercarriage and an upper revolving body rotatably mounted on the lower traveling body, wherein the upper revolving body has an engine chamber for accommodating an engine, One side of the engine compartment is defined by a counterweight attached to the upper revolving structure, and a hydraulic shovel having another side having an openable and closable side cover is formed adjacent to the counterweight. The engine oil filler port is provided at a position where oil can be supplied by opening the side cover, and is connected to an oil pan of the engine.
That the hydraulic excavator of the engine oil supplying opening and wherein the.