JP4495837B2 - Oil receiver for construction machinery - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an oil receiver for a construction machine.
[0002]
[Prior art]
A conventional oil receiving device for construction machinery will be described with reference to FIGS. FIG. 6 is a side view of the excavator, and FIG. 7 is a partial cross-sectional top view for explaining the positions of the engine and the oil filter.
[0003]
In FIG. 6, a lower traveling body 4 is disposed in the hydraulic excavator 1, and an upper revolving frame 11 is rotatably mounted at a substantially upper center of the lower traveling body 4. A machine cab 20 is disposed at the rear of the upper swing frame 11. In FIG. 7, an engine 50 is disposed at a substantially central portion in the machine cab 20, and an oil filter 55 provided on a side surface (front side of the vehicle) of the engine 50 is attached to the upper revolving frame 11 with a bracket 56. Has been.
[0004]
FIG. 8 is a perspective view of an essential part of the arrow P in FIG. In FIG. 8, an under cover 26 having an inspection port 26a is provided on the lower surface of the machine cab 20, and a lower inspection door 27 is attached to the inspection port 26a of the under cover 26 through a hinge 27a so as to be opened and closed. Yes. The lower inspection door 27 has a structure in which the side opposite to the hinge 27a is fastened to the under cover 26 by a bolt hole 27b and closed. The inspection port 26a is provided at a position where the oil pan 51 and the oil filter 55 below the engine bottom can be opened.
[0005]
When the engine oil is changed, the oil filter 55 (the filter element and the case are integrated) is removed from the oil flowing out by removing the drain plug 51a of the oil pan 51 and the mounting hole 55c provided in the oil filter head 55a. The maintenance oil tray 80 is installed on the ground below the drain plug 51a and the oil filter 55 so that the oil flowing out from the mounting hole 55c is sometimes received together.
[0006]
[Problems to be solved by the invention]
However, the conventional oil filter replacement method described above has the following problems.
[0007]
(1) The engine oil of the construction machine is often changed within a short period of time when the machine is temporarily stopped during the lunch break at the work site. In this case, when the oil filter 55 is removed, hot oil spills down from the mounting hole 55c through the case of the oil filter 55, and the hot oil filter 55 is removed while rotating, and the oil filter 55 on the ground is long. You must take it down a distance. For this reason, before the oil filter 55 is loosened and completely removed, the clothes easily get dirty due to the oil flowing from the mounting hole 55c to the maintenance oil tray 80, and the hot oil filter 55 must be held for a long time. Is bad.
[0008]
(2) After removing the oil filter 55, the oil is received by the maintenance oil tray 80 until dripping of oil from the mounting hole 55c (oil removed for replacement is referred to as waste oil, the same shall apply hereinafter) stops. Since the distance from the mounting hole 55c to the maintenance oil tray 80 is long, when even the wind is blowing, the oil droplets are easily washed away by the wind and fall to the ground outside the maintenance oil tray 80. May contaminate the ground. In addition, there is also a problem that it takes time to transfer the waste oil accumulated in the maintenance oil tray 80 to a predetermined waste oil recovery can.
[0009]
The present invention has been made paying attention to the above-mentioned problems, and provides an oil receiver for a construction machine that facilitates the removal work of an oil filter and can easily collect the waste oil at that time. The purpose is that.
[0010]
[Means, actions and effects for solving the problems]
In order to achieve the above object, according to a first aspect of the present invention, in an oil receiver for a construction machine that collects waste oil discharged from a filter mounting hole when replacing an oil filter of an engine, an under cover is provided below the oil filter. An oil tray is provided on the upper surface of the under cover, and a drain hole is provided in the oil tray.
[0011]
According to the first invention, since the removed oil filter can be immediately dropped into the oil tray provided on the upper surface of the lower under cover, the oil filter can be easily removed and the oil tray of the oil flowing out from the oil filter mounting hole can be used. Since the fall distance is short, the clothes are difficult to get dirty with oil and workability is very good. In addition, oil drops from the oil filter mounting hole are received above the under cover, making it less susceptible to wind and reducing the oil drop distance even when there is wind, so oil drops are received in the oil tray. be able to. Furthermore, simultaneous parallel work with other work can be performed before dripping of oil stops. As a result, waste oil can be easily and reliably collected without polluting the ground.
[0012]
According to the present invention, the waste oil recovery can is first arranged on the ground below the drain hole, a base is inserted or screwed into the drain hole, one end of the hose is connected to the base, and the other end is connected to the waste oil recovery can. Connect and prepare for waste oil recovery. Next, when the oil filter is removed and dropped into the oil tray directly below, the oil flowing out from the oil filter mounting hole flows into the oil tray and is directly collected in the waste oil collecting can via the base and the hose. For this reason, the operation | work which transfers waste oil from an oil tray to a waste oil collection can becomes unnecessary. And while waiting for dripping of the oil from the said attachment hole to stop, another operation | work can be performed in parallel. As a result, in addition to the effects of the first invention, the recovery of waste oil can be performed more easily and reliably in a short time.
[0013]
According to a second invention, in the oil receiver for a construction machine according to the first invention, an open / close valve is detachably attached to the drain hole of the oil tray.
[0014]
According to the second invention, the oil filter is removed with the open / close valve closed, and the waste oil is poured into the oil tray directly below. During this time, when the connection between the outlet of the on-off valve and the waste oil recovery can is completed with a hose, the on-off valve can be opened to directly collect the waste oil. Therefore, no matter if the oil filter removal work or the waste oil recovery preparation work (placement of the maintenance oil tray or connection of the waste oil recovery can) comes first, the oil will not spill on the ground, and both operations will be performed simultaneously. You can do it. As a result, in addition to the operational effects of the second invention, waste oil recovery can be performed more easily and in a short time.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of an oil receiver for a construction machine according to the present invention will be described in detail with reference to FIGS.
[0016]
First, the basic configuration of the present invention will be described with reference to FIGS. Figure 1 is a perspective view from below of the engine, a P arrow view of FIG. 2 is a partial cross-sectional side view of the main part, (A) is a view taken in the direction of arrow Q in FIG. 1, and (B) is a cross-sectional view taken along line MM in (A). In addition, the same code | symbol is attached | subjected to the component same as FIG. 8, and description below is abbreviate | omitted.
[0017]
In FIGS. 1 and 2, the under cover 26 is extended below the oil filter 55, and the inspection port 26 a is formed at the position of the under cover 26 avoiding the bottom of the oil filter 55. An oil tray 30 is disposed on the upper surface of the under cover 26 immediately below the oil filter 55, and the oil tray 30 has a hook 31 a formed on the upper end portion of the hook bolt 31 as an outer peripheral wall of the oil tray 30. The wing nut 32 is screwed into a thread portion provided at the lower portion of the hook bolt 31 while being locked to the portion, and is detachably attached to the under cover 26.
[0018]
According to this configuration , when the oil filter 55 is removed, the oil filter 55 is first removed, and at the same time, the oil filter 55 can be dropped into the oil tray 30 immediately below. Therefore, the time for holding the oil filter 55 is short, and the removal workability is improved. Next, dripping of oil from the mounting hole 55c can be received at a short drop distance by the oil tray 30 on the upper surface of the under cover 26 immediately below. For this reason, it is hard to receive the influence of a wind and can receive in the oil tray 30 reliably. Furthermore, after the dripping of oil stops, the wing nut 32 is loosened, the hook bolt 31 is removed from the oil tray 30, and the waste oil can be transferred from the oil tray 30 to the waste oil recovery can. As a result, it is possible to easily replace the oil filter and recover the waste oil at that time without contaminating the ground and without contaminating the clothes.
[0019]
Next, a first embodiment of the present invention will be described with reference to FIGS. FIG. 3 is a partial cross-sectional side view of a main part of the present embodiment, and is a view taken in the direction of arrow Q in FIG. The same components as those in FIG. 2 are denoted by the same reference numerals, and the description thereof will be omitted. In FIG. 3, the oil tray 30 is integrally fixed to the upper surface of the under cover 26. A drain hole 30a is formed in the oil tray 30, and a plug 33 having an O-ring 34 is detachably fitted into the drain hole 30a by screwing or the like.
[0020]
The operation according to this embodiment will be described. First, the plug 33 is removed from the drain hole 30a of the oil tray 30, and one end of the base 35 is screwed into the drain hole 30a as shown in FIG. One end of a hose 36 is attached to the other end of the base 35 by a clamp 37, and the other end of the hose 36 is directly inserted into a waste oil recovery can (not shown). Next, the oil filter 55 is removed and dropped into the oil tray 30 at the same time. Thereby, the removal work can be facilitated. Further, since the falling distance of the waste oil from the mounting hole 55c is short, the waste oil can be poured into the oil tray 30 without soiling clothes, and can be recovered without being affected by the wind and contaminating the ground.
[0021]
After that, when the dripping of the oil flowing out from the mounting hole 55c stops, the recovery of the waste oil to the waste oil recovery can is completed, so that the waste oil is once received in the maintenance oil tray and transferred to the waste oil recovery can as before. Is no longer necessary. Therefore, the oil filter 55 replacement operation and the waste oil recovery operation can be performed very easily and in a short time, and workability can be improved.
[0022]
Furthermore, since the oil flowing out from the drain plug 51a (see FIG. 9) of the oil pan 51 can also be poured into the oil tray 30 at the same time, both the recovery of the waste oil from the oil pan 51 and the recovery of the waste oil from the oil filter 55 can be performed simultaneously. Since it can be collected in a short time, workability can be improved.
[0023]
Next, a second embodiment will be described with reference to FIG. FIG. 5 is a partial cross-sectional side view of an essential part of the present embodiment, and is a view taken in the direction of arrow Q in FIG. Note that the same components as those in FIG. 4 are denoted by the same reference numerals, and description thereof will be omitted.
[0024]
In FIG. 5, an open / close valve 39 (ball valve in the figure) is attached to the drain hole 30a, the open / close valve 39 is closed in a horizontal state (shown by a solid line), and the lever 39a is in a vertical state. The on-off valve 39 is configured to be in an open state (in the state indicated by a two-dot chain line). One end of the hose 36 is attached to the outlet of the open / close valve 39 by a clamp 37, and a substantially middle portion of the hose 36 is supported by a clip 38 attached to the lower surface of the under cover 26 to prevent the tip portion from drooping. is doing.
[0025]
According to the present embodiment, in addition to the operation and effect of the first embodiment, the operation of removing the oil filter 55, and the hose 36 is removed from the clip 38 and inserted into a waste oil recovery can (not shown) to open and close the valve. Since waste oil does not spill into the ground no matter which of the operations to open 39 first, the above two operations can be performed in parallel and the workability is very good. As a result, oil filter replacement and waste oil recovery at that time can be easily and reliably performed in a short time.
[0026]
As described above, according to the present invention, since the oil tray is provided on the upper surface of the under cover directly below the oil filter, it is possible to shorten the appropriate oil fall distance. As a result, the oil filter can be easily removed without soiling the clothes. Moreover, since it becomes difficult to receive the influence of a wind, waste oil can be reliably flowed in an oil tray, and waste oil can be collect | recovered without contaminating the ground.
[0027]
In addition, a drain hole is formed in the oil tray, and a cap and an open / close valve can be detachably connected to the drain hole, so that the waste oil can be collected directly into a waste oil recovery can via a hose attached to the cap and the open / close valve. Thus, the recovery operation can be performed more easily, reliably and in a short time.
[0028]
In the above description, the hydraulic excavator has been described as an example. However, the present invention is not limited to the hydraulic excavator and is widely applied to construction machines having the same oil filter as described above, and the same operations and effects can be obtained.
[Brief description of the drawings]
1 is a perspective view of a main part of the basic configuration of the present invention, and is a view taken in the direction of arrow P in FIG.
2 is a partial cross-sectional side view of the main part of the basic configuration , in which (A) is a view taken in the direction of the arrow Q in FIG.
FIG. 3 is a partial cross-sectional side view of a main part of the first embodiment, and is a view taken in the direction of arrow Q in FIG.
FIG. 4 is an explanatory diagram of the operation of the first embodiment.
5 is a partial cross-sectional side view of a main part of the second embodiment, and is a view taken in the direction of arrow Q in FIG.
FIG. 6 is a side view of a hydraulic excavator.
FIG. 7 is a cross-sectional top view of a main part of the hydraulic excavator.
FIG. 8 is a perspective view of the main part viewed from the arrow P in FIG. 6;
[Explanation of symbols]
26: Under cover, 30 ... Oil tray, 30a ... Drain hole, 31 ... Hook bolt, 32 ... Wing nut, 33 ... Plug, 34 ... O-ring, 35 ... Base, 36 ... Hose, 39 ... Open / close valve, 55 ... Oil Filter, 55c ... mounting hole.

Claims (2)

When replacing the oil filter (55) of the engine, in the oil receiver of the construction machine that collects the waste oil discharged from the filter mounting hole (55c),
An under cover (26) is provided below the oil filter (55), and an oil tray (30) is provided on the upper surface of the under cover (26) .
An oil receiver for a construction machine, wherein a drain hole (30a) is provided in the oil tray (30) . The oil receiver for a construction machine according to claim 1 ,
An oil receiver for a construction machine, wherein an open / close valve (39) is detachably attached to a drain hole (30a) of the oil tray (30).

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