JPS6332731Y2 - - Google Patents

Description

[Detailed description of the invention] [Technical field of the invention] This invention relates to a wheel crane.

[Technical background of the invention and its problems]

There are various types of wheel cranes used for civil engineering and construction work, among which wheel cranes are equipped with a driver's seat for traveling and crane work, and are equipped with a rotating crane equipped with a crane device on the vehicle body. A platform is provided, and the swivel platform is provided with a driver's seat for traveling and crane work, and the vehicle body is equipped with an engine that serves both to drive the vehicle and to drive the crane device.

The engine is usually housed in an engine room provided in the vehicle body, located behind or in front of the swivel base. A cooling air intake and a cooling air outlet are provided on the front and rear sides of this engine room.The engine is cooled by the cooling air taken in from the cooling air intake, and the air used for cooling is , the cooling air is discharged from the cooling air outlet.

However, with traditional wheel cranes,
Since the cooling air intake and cooling air outlet mentioned above are located on the front and rear sides of the engine room, there is no problem except when driving, but when driving, the amount of cooling air taken in is insufficient and the engine overheats. I was afraid.

This means that among the cooling air intake and cooling air outlet provided on the front and rear surfaces of the engine room, the cooling air intake and cooling air outlet provided on the engine room surface on the swivel base side are connected to the top surface of the vehicle body. Although the opening is opposite to the gap between the base and the bottom surface of the base, the swivel base of the swivel base, that is, the slewing bearing, is connected to the vehicle body at the front of the engine room, so cooling air can be taken into the cooling air intake or This is because exhaustion of the cooling air from the exhaust port is obstructed by the swivel base of the swivel base.

In other words, in the case of a wheel crane in which the engine room is located behind the swivel base, when the crane is running, the cooling air inflow into the cooling air intake is located immediately after the swivel base. The inflow of cooling air into the inlet is obstructed by the swivel base of the swivel table, and as a result, the engine may overheat because it is not possible to take in sufficient cooling air during driving. In addition, in the case of a wheel crane in which the engine room is located in front of the swivel base, the cooling air outlet is located just in front of the swivel base, contrary to the cooling air intake when traveling, and this cooling air exhaust is located in front of the swivel base. Exhaust air from the outlet is blocked by the pivot base of the pivot table. Therefore, in this case, since the cooling air cannot be sufficiently discharged during driving, the amount of cooling air taken in from the cooling air intake port also decreases, and the engine may overheat.

[Purpose of invention]

This idea was made based on these circumstances, and its purpose is to provide a wheeled crane that can take in sufficient cooling air into the engine room even when traveling to prevent the engine from overheating. There is a particular thing.

[Summary of the idea]

In other words, this invention provides a running air intake port or a front side of the engine room that protrudes outward from the outer side of the swivel base of the swivel base on the side of the engine room to draw air from the vehicle into the engine room during driving. By providing a running air outlet that exhausts the running air taken in from the cooling air intake on the rear side from inside the engine room, it is possible to eliminate the need for using only the cooling air intake and cooling air outlet provided on the front and rear sides of the engine room. Instead, the cooling air is also taken in through the running wind inlet or the running wind outlet.

[Example of idea]

An embodiment of this invention will be described below based on the drawings.

In the figure, 1 is the body of the wheel crane, 2,
2 is a wheel of this vehicle body 1. A swivel base 3 is provided on the vehicle body 1 and is capable of rotating. Reference numeral 3a denotes a swing base of the swing base, and this swing base includes a swing bearing that supports the swing base 3 in a rotatable manner. This swivel base 3 is provided with a boom 5 that is pivotally supported on a pivot shaft 4. The boom 5 is configured to be extendable and retractable by a telescopic cylinder (not shown), and is also capable of being raised and lowered by a lifting cylinder 6. Reference numeral 7 indicates a hook of the boom 5, and reference numeral 8 indicates a lifting wire.The lifting wire 8 is fed out and wound up by a winch (not shown).

Further, a driver's seat 9 is provided on the swivel base 3. This driver's seat 9 is used both for running the vehicle body 1 and for crane work. Note 1
0... is an outrigger.

On the other hand, an engine room 11 is provided at the rear of the vehicle body 1, that is, at the rear side of the swivel base 3. This engine room 11 is composed of a box-shaped engine cover, and an engine 12 is housed inside the engine cover. This engine 12 is used both to drive the vehicle body 1 and to drive the crane device configured as described above. Note that 13 is a radiator, and 14 is a cooling fan.

In addition, a cooling air intake port 15 and a cooling air outlet port 1 are provided on the front and rear surfaces of the engine room 11.
6 are provided respectively.

Further, on the side surfaces 11a, 11a of the engine room 11 along the running direction, a running wind inlet 1 is provided.
7 and 17 are provided, respectively. These running wind intake ports 17, 17 are configured to be openable and closable, with air guide plates 17a, 17a being pivotally connected to the engine cover by hinges 18, 18.
a, 17a to the outside of the engine room 11, the swivel base 3a (swivel bearing) of the swivel base 3 is extended outward from the outer surface of the swivel base 3a (swivel bearing) and opened toward the traveling direction of the vehicle body 1. I'm starting to do that. In addition, 19, 19 are the said wind guide plates 17a,
This is a handle for opening and closing 17a.

According to the above embodiment, when the vehicle is running, the flow of cooling air into the cooling air intake port 15 on the front side of the engine room 11 is blocked by the swing base 3a of the swing base 3, so that the cooling air cannot be taken in. Even if this is not possible, if the wind guide plates 17a, 17a of the running air intakes 17, 17 are opened to protrude from the side surfaces 11a, 11a of the engine room 11, the running air intakes 17, 17 can be connected to the swivel base 3. Swivel base 3
It protrudes outward from the outer surface of a and opens in the direction of travel. Therefore, during running, the running wind is not blocked by the swivel base 3, but is sufficiently drawn into the engine room 11 through the running air intake ports 17, 17, and is discharged from the cooling air outlet 16. be able to. As a result, the engine 12 in the engine room 11 is sufficiently cooled by the traveling wind, so that overheating of the engine 12 during traveling can be prevented.

Note that during crane work, the air flow between the swing base 3a of the swing base 3 and the engine room 11 is not obstructed by the swing base 3a, unlike when the crane is traveling; Since sufficient cooling air can be taken in from the front cooling air intake port 15, the running air intake ports 17, 17
There is no need to worry about the engine 12 overheating even if it is closed. Furthermore, if the traveling air intake ports 17, 17 are closed during crane work, the engine noise leaking to the sides of the engine room 11 through the traveling air intake ports 17, 17 can be eliminated, so noise caused by this engine noise can be eliminated. can be made smaller.

Note that this invention is not limited to the engine room located behind the swivel base as in the above embodiment, but in the case of an engine room located ahead of the swivel base, the above-mentioned running air intake Instead, a traveling wind exhaust port may be provided to discharge the traveling wind taken in from the cooling air intake from the engine room. Furthermore, the engine room is not limited to housing an engine that is used for traveling and for the crane device, but may also be one that accommodates an engine exclusively used for the crane device.

[Effect of idea]

As explained above, this invention is based on the idea that the swivel base of the swivel base is installed on the side of the engine room, which is located at the rear or front of the swivel base and has a cooling air intake and a cooling air outlet on the front and rear surfaces. A running wind intake port is provided which protrudes outward from the outer surface and which sucks running wind into the engine room during running or a running wind exhaust port which discharges running wind taken in from the cooling air intake. Features. Therefore, even if the inflow of cooling air into the cooling air intake port is obstructed by the swing base of the swivel base when the vehicle is running, the wind during the drive may be directed into the engine room through the drive air intake port. In addition, even if exhaust from the cooling air outlet is blocked by the swivel base, the running wind taken in from the cooling air intake can be taken in by the running wind exhaust. It can be sufficiently discharged from the outlet. As a result, the engine in the engine room can be sufficiently cooled by the running wind, which has the great effect of preventing the engine from overheating even when the vehicle is running.

[Brief explanation of the drawing]

The drawings show one embodiment of this invention; Fig. 1 is a side view of the wheel crane, Fig. 2 is a plan view of the wheel crane, Fig. 3 is an enlarged side view of the engine room, and Fig. 4 is Fig. 3. A cross-sectional view taken along the center line, and FIG. 5 is a perspective view of the wind inlet. 1...Vehicle body, 3...Swivel base, 3a...Swivel base, 11...Engine room, 15...Cooling air intake, 16...Cooling air outlet, 17...Travel wind intake.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A swivel base equipped with a crane device is provided on the vehicle body, and cooling air intakes and cooling air intakes are provided on the front and rear surfaces of the vehicle body, located behind or in front of the swivel base. In a wheel crane provided with an engine room having an air exhaust port, a side surface of the engine room is protruded outward from the outer surface of the swivel base of the swivel base to draw air from the vehicle during travel into the engine room. A wheel crane characterized by being provided with a running wind exhaust port for discharging the running wind taken in from the running wind intake or the cooling air intake from the engine room. (2) The wheeled crane according to claim 1, wherein the traveling wind inlet or the traveling wind outlet is configured to be openable and closable.