JP3895073B2 - Engine room structure of traveling work machine - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention is an engine room structure of a traveling work machine such as a tractor.
[0002]
[Prior art]
Conventionally, a condenser, an oil cooler, and a radiator are arranged in series from the front side in front of an engine cooling fan like a tractor shown in Japanese Patent Laid-Open No. 8-113043, and a battery is installed in front of the condenser by a bonnet. The engine room is configured by covering.
[0003]
[Problems to be solved by the invention]
In the engine room structure of a traveling work machine with the configuration shown in the above publication, if you want to perform cleaning work when the radiator is clogged with dust etc. due to work, or maintenance work such as repair or inspection of each part, After removing the battery first, the condenser and the oil cooler were removed, the front surface of the radiator was opened, and the work had to be cleaned. Further, when removing the condenser and the oil cooler, there are problems such as complicated work such as refrigerant gas and working oil must be extracted.
[0004]
[Means for Solving the Problems]
The engine room structure of the traveling working machine of the present invention for achieving the above object is configured as follows.
[0005]
That is, in front of the cooling fan 31 of the engine E mounted on the traveling machine body 2, the condenser 5, the oil cooler 6, and the radiator 4 are arranged in series from the front side, and the traveling machine body is located on the front side of the capacitor 5. In the engine room structure of the traveling work machine in which the battery 7 is attached to 2, a fixed frame 32 that surrounds the vent hole 3a provided at the center of the radiator mounting frame 3 is provided on the front side of the radiator mounting frame 3 that supports the radiator 4. And a movable frame 33 is provided at the upper notch in front of the fixed frame 32 so that the movable frame 33 can be rotated from the state of use around the battery 7 over the battery 7 to a maintenance posture. A capacitor 5 is provided, and further, the oil cooler 6 is positioned below the radiator mounting frame 3 and above the battery 7 with the horizontal axis centered frontward. Rotatably and then, and, it has a screen 8 to be detachably mounted over between the movable frame 33 and the fixed frame 32.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
[0008]
Reference numeral 1 shown in FIG. 1 denotes a tractor (traveling work machine) provided with a crawler type traveling device 2a. An engine E is mounted on a machine base (traveling machine body) 2 connected to a traveling frame 2b of the traveling device 2a from the front. The engine room 3R with the hood is covered with a bonnet 10, and a driver's seat 11 with a cabin is provided, and a three-point link mechanism 12 for mounting a working machine such as a tillage device is provided at the rear, and the power of the engine E is propeller. The left and right traveling devices and the PTO shaft for transmitting the work machine are driven from an HST hydraulic drive device driven via a shaft (not shown).
[0009]
The engine room structure in the engine room 3R is partitioned by a radiator mounting frame 3 as shown in FIG. 2, and the radiator mounting frame 3 is formed on the back surface of a vent hole 3a (FIG. 3) formed in the center. The radiator 4 is detachably fixed, and the shroud 30 is integrally extended from the outer periphery of the ventilation port 3a toward the rear, and the cooling fan 31 provided on the rotating shaft of the engine E in the shroud 30. The cooling air A is introduced from the front side of the bonnet 10 toward the engine E side.
[0010]
Further, on the front side of the radiator mounting frame 3, an air conditioner condenser 5 for the driver's seat 11 and an oil cooler 6 for cooling the hydraulic oil for the hydraulic drive device 15 are arranged from the upper cooling side, and in series with the radiator 4. The cooling air A can be efficiently cooled by a series of air guide paths.
[0011]
A battery 7 is detachably attached to the machine base 2 on the front side of the capacitor 5 in the front row. As shown in FIG. 3, a fixed frame 32 is provided on the front side of the radiator mounting frame 3 so as to surround the front side of the vent hole 3a, and the upper side of the fixed frame 32 can be contacted and separated from the front side portion. The movable frame 33 (a kind of box-shaped) for attaching the capacitor 5 to be joined to the right side of the fixed frame 32 by a rotating attachment 35 such as a hinge on the right side of the fixed frame 32 as “used state” shown by a solid line in FIG. Thus, the rotation fixture 35 can be fixed so as to be switchable to a “maintenance posture” that passes through the battery 7 at the center of the vertical axis of the rotation fixture 35 and is retracted and rotated sideways. Note that the height of the lower end of the movable frame 33 is higher than that of the battery 7 installed in the front, so that the lower end of the movable frame 33 does not collide with the battery 7.
[0012]
In addition, the condenser 5 is fixed in the movable frame 33, and a receiver 50 for an air conditioner is attached to the side surface on the rotating attachment 35 side. Reference numeral 51 denotes a hose connected to an evaporator (not shown) on the air conditioner main unit, and reference numeral 52 denotes a pipe connected to the capacitor 5.
[0013]
Engaging grooves 32a and 33a for slidably inserting the net-like screen 8 are formed on both sides of the movable frame 33 and the fixed frame 32, and the screen 8 is engaged with the engaging grooves 33a and 33a from above in the “use posture”. It is configured to be supported by being inserted into 32a.
Next, the mounting structure of the oil cooler 6 will be described.
[0014]
As shown in FIG. 5, the oil cooler 6 is rotatably mounted by a rotating mounting tool 60 such as a hinge below the radiator mounting frame 3, and the upper part thereof is fixed to the radiator mounting frame 3 by a fixing tool 61 such as a screw. It is designed to be fastened and disengaged. Specifically, it is detachably attached to the upper part of the mounting frame 62 shown in FIG. 6, and is fixed when the front movable frame 33 is rotated from the “use posture” shown by the solid line in FIG. 5 to the “maintenance posture”. 61 is released, and the oil cooler 6 can be rotated largely toward the front side near the center of the horizontal axis of the lower rotating fixture 60 to a position close to the battery 7, as shown by the chain line. It can be switched. Reference numeral 63 denotes a flexible oil hose connected to the hydraulic drive unit 15 side.
[0015]
The engine room structure of the traveling work machine configured as described above has the usage posture shown in FIGS. 2 and 3, and the condenser 5, the oil cooler 6, and the radiator 4 are arranged in series. Each of them is received on the entire surface and can be cooled well.
[0016]
Further, when performing maintenance work such as dust removal when clogging due to dust or the like due to work occurs, the front surface of the capacitor 5 can be released by first pulling the screen 8 upward. Cleaning etc. can be performed easily.
[0017]
Further, during maintenance work of the oil cooler 6, when the movable frame 33 is rotated to the maintenance posture (FIG. 4), the capacitor 5 and the receiver 50 positioned on the front side of the oil cooler 6 are passed over the battery 7. The oil cooler 6 can be easily maintained because it can be retracted to the side.
[0018]
Further, when performing maintenance work of the radiator 4, the front surface of the radiator 4 is widely opened by retracting the condenser 5 to the maintenance posture as described above and tilting the oil cooler 6 to the maintenance posture as shown in FIG. Therefore, the front surface of the wide area radiator 4 located on the innermost side can be largely opened, and the maintenance work can be performed efficiently and easily.
[0019]
Further, when the capacitor 5 and the front surface of the radiator 4 are switched to the maintenance posture and opened as described above, the capacitor 5 and the oil cooler 6 can be easily removed and repaired.
[0020]
Further, since the condenser 5 and the oil cooler 6 can be retracted from the front surface of the radiator 4, the radiator 4, the oil cooler 6 and the like can be cleaned without removing the cooler gas and the hydraulic oil.
[0021]
【The invention's effect】
As is clear from the above description, according to the engine room structure of the traveling working machine of the present invention, the condenser 5, the oil cooler 6, and the radiator 4 arranged in series can be well cooled by the cooling fan 31. .
[0022]
When performing maintenance work such as removing clogging of the radiator 4 and the like, the individual maintenance work can be efficiently and easily performed by simply rotating and retracting the condenser 5 and the oil cooler 6 without removing the condenser 5 and the oil cooler 6. be able to.
[0023]
Further, since the foremost capacitor 5 passes above the battery 7 around the vertical axis and is retracted and rotated together with the receiver 50, the front surface of the oil cooler 6 can be widely opened.
[0024]
Further, the oil cooler 6 can be opened widely up to the upper side of the battery 7 with the horizontal axis as the center of the lower side of the radiator 4 and with the condenser 5 rotating about the vertical axis. The structure of the engine mur 3R can be summarized in a simple and compact manner.
[Brief description of the drawings]
FIG. 1 is a side view of a tractor.
FIG. 2 is a plan view showing an engine room structure.
3 is a right side view showing the structure of the main part of FIG. 2. FIG.
4 is a plan view showing a maintenance posture of the capacitor of FIG. 3; FIG.
5 is a left side view showing the structure of the main part of FIG. 2;
FIG. 6 is a perspective view showing a mounting frame of the oil cooler.
[Explanation of symbols]
1 Tractor (traveling machine)
2 Traveling aircraft (machine stand)
3 Radiator mounting frame 4 Radiator 5 Capacitor 6 Oil cooler 7 Battery 8 Screen 31 Cooling fan 32 Fixed frame 33 Movable frame 35, 60 Rotating fixture 50 Receiver E Engine

Claims (1)

In front of the cooling fan 31 of the engine E mounted on the traveling machine body 2, the condenser 5, the oil cooler 6 and the radiator 4 are arranged in series from the front side, and the traveling machine body 2 is positioned so as to be located on the front side of the capacitor 5. In the engine room structure of the traveling work machine to which the battery 7 is attached, a fixed frame 32 is provided on the front side of the radiator mounting frame 3 that supports the radiator 4 so as to surround the ventilation opening 3a provided at the center of the radiator mounting frame 3. A movable frame 33 is provided at the upper notch in front of the fixed frame 32 so that the movable frame 33 can be rotated from the use state to the maintenance posture with the vertical axis as the center. Furthermore, the oil cooler 6 can be rotated above the battery 7 toward the front side around the horizontal axis below the radiator mounting frame 3. And, an engine room structure of the traveling working machine, characterized in that for detachably attaching the screen 8 over between the movable frame 33 and the fixed frame 32.

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