JPH0412811Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention includes a radiator for cooling the engine on the rear side of the engine, and a rotating fan that supplies cooling air from the engine side to the radiator. , relates to a structure of a driving part in a working vehicle in which an engine exhaust muffler is disposed below the rotating fan.

[Conventional technology]

The work vehicle described above is designed to suppress deterioration in the comfort of the control section due to engine exhaust noise by separating the engine exhaust muffler as far as possible from the control section.

Conventionally, in this type of work vehicle, a rotary fan sucks outside air through the vicinity of the engine exhaust muffler, which has the following disadvantages.

[Problem that the invention attempts to solve]

Air taken in by the rotating fan to cool the radiator is heated by the engine exhaust muffler, resulting in poor cooling efficiency.

An object of the present invention is to improve cooling efficiency while simplifying modification.

[Means for solving problems]

The characteristic configuration of the present invention is that, in the structure of the driving part of the working vehicle mentioned above, a shielding plate is provided between the rotary fan and the engine exhaust muffler, and one end side of the supporting member of the engine exhaust muffler is located in the lateral direction of the machine body. The rotary fan is provided close to or connected to the upper end side of a plate-like part that extends vertically, and the outside air intake path of the rotary fan is formed by the plate-like part and a shielding plate so as to pass in front of the plate-like part. Its functions and effects are as follows.

[Effect]

A shielding plate shields a rotating fan arrangement location and a muffler arrangement location, and the shielding plate and the plate-shaped portion form the outside air intake passage, and the intake of outside air by the rotating fan is performed through the periphery of the engine exhaust muffler. Instead, it will be done by bypassing the muffler location.

[Effect of idea]

The rotary fan bypasses the muffler location and draws in outside air, allowing cooling air to be supplied to the radiator without being heated by the engine exhaust muffler, increasing engine cooling efficiency and output efficiency. It has become possible to improve

By using the muffler support member that is originally included in the member that forms the outside air intake passage, the shield plate can be made as small as possible, and the modification can be simplified by requiring only a small number of additional parts. This made it economically advantageous.

〔Example〕

As shown in FIG. 3, a front fuselage 2 having front driving wheels 1 and a rear fuselage 4 having rear driving wheels 3 are configured to be steered by relative rocking around a vertical axis P. A shovel loader is constructed by attaching a shovel working device 6 to the front part of a traveling body equipped with a driving unit having an engine bonnet 5.

As shown in FIG. 1, the driving unit includes a radiator 9 for cooling the engine on the rear side of the engine 8 inside the engine bonnet 5, and a radiator 9 for cooling the radiator 9. A rotating fan 11 is disposed that supplies the air to the radiator 9 from the engine side and exhausts it to the outside of the engine bonnet from the exhaust port 10. An engine exhaust muffler 12 is disposed below the rotating fan 11, and the engine exhaust muffler 12 rotates with the engine exhaust muffler 12. The shielding plate 15, which is placed between the fans 12 and attached to the fuselage frame 14 via the fixture 13, shields the muffler placement location from the fan placement location, and the rotating fan 11 directs cooling air through the muffler placement location. Designed to prevent inhalation.

The exhaust muffler 12 is connected to the body frame 14 at both ends, and is connected to the exhaust muffler 12 via a tightening type holder 16.
A support member 17 as shown in FIG.
One end of the shielding plate 15 is brought close to the upper end side of the plate-shaped part 17a extending in the horizontal and vertical directions of the aircraft body, and the plate-shaped part 17a and the shielding plate 15 allow the rotary fan 11 to take in outside air. The muffler is arranged so that the passage R passes through the front side of the aircraft body of the plate-shaped portion 17a, and the rotary fan 11 draws air from outside the engine bonnet from below the aircraft body so that it is not heated by the exhaust muffler 12. It is designed to be inhaled by bypassing the area.

[Another example]

The supporting member 17 may be connected to the engine 8, or one end side of the shielding plate 15 may be connected to the plate-shaped portion 17.
It may be carried out in conjunction with a.

In addition to shovel loaders, the present invention can also be applied to various work vehicles such as transport vehicles.

[Brief explanation of the drawing]

The drawings show an embodiment of the structure of the driving part in a working vehicle according to the present invention, and FIG. 1 is a partially cutaway side view of the driving part, FIG. 2 is a partially cutaway plan view of the driving part, and FIG. 3 is a partially cutaway plan view of the driving part. is a side view of the entire shovel loader. 8...Engine, 9...Radiator, 11...
Rotating fan, 12...Engine exhaust muffler, 1
5... Shielding plate, 17... Supporting member, 17a... Plate-shaped portion, R... Outside air intake path.

Claims (1)

[Scope of utility model registration request] A radiator 9 for cooling the engine is disposed on the rear side of the aircraft body of the engine 8, a rotating fan 11 is disposed to supply cooling air from the engine side to the radiator 9, and an engine exhaust muffler 12 is disposed below the rotating fan 11. This is the structure of a driving part in a working vehicle, in which a shielding plate 15 is provided between the rotary fan 11 and the engine exhaust muffler 12.
is provided such that one end side is close to or continuous with the upper end side of a plate-shaped portion 17a of the support member 17 of the engine exhaust muffler 12 that extends in the lateral direction and vertically of the aircraft body, and the outside air intake path R of the rotary fan 11 is connected to the plate-shaped portion 17a of the support member 17 of the engine exhaust muffler 12. A structure of a driving part in a working vehicle formed by a portion 17a and a shielding plate 15 so as to pass in front of the plate-like portion 17a.