JP2000168637A - External hydraulic pressure takeoff device of travelling working machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate hydraulic pressure takeout to the front and to facilitate maintenance of an engine accessory (battery, etc.), from the front by providing an external hydraulic pressure takeout port to be opened to the front on a front part of a machine body frame and covering a front surface of the hydraulic pressure takeout port with a guard member. SOLUTION: It is possible to connect piping from a front installation apparatus and to easily take out hydraulic pressure to the front by a connecting fitting 4a to connect front hydraulic pressure takeout piping 4 to the front even wen a front cover 3 is kept installed. Additionally, it is possible to secure air quantity for engine cooling especially even at the time of working at a hot area by exchanging the front cover 3 with a front cover an opening part of which is large and to carry out a heat resisting countermeasure. Consequently, takeout of hydraulic pressure to the front of a machine body is facilitated, and it is possible to facilitate maintenance of an engine accessory (battery, etc.), mounted in a machine body frame from the front by removing a cover member.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to construction, transportation,
The present invention relates to a front structure of a body frame of a traveling work machine for agriculture, forestry, and the like, and more particularly, to an external hydraulic take-out device forward from the body frame.

[0002]

2. Description of the Related Art Conventionally, Japanese Utility Model Laid-Open No. 58-54961,
As known in Japanese Patent Application Laid-Open No. 7-117586, a connecting portion for taking out an external hydraulic pressure is provided in the vicinity of a driver's seat in a forward or upward direction. As is well known in Japanese Patent Application Laid-Open No. 59-57282, there is already known a tractor in which a weight mounting frame also serving as a bumper is provided at a front portion of a body frame of a tractor to facilitate mounting of a balance weight.

[0003]

SUMMARY OF THE INVENTION Conventionally known, Japanese Unexamined Utility Model Publication No. Sho 58-54961 and Japanese Unexamined Patent Publication No. Hei.
As is well known in Japanese Patent No. 586, even if the connecting portion for taking out the external hydraulic pressure is provided forward or upward near the operator's driver's seat, the front portion of the body frame is fixedly connected to the left and right high, The structure of taking out hydraulic pressure from the fuselage forward was complicated, for example, piping was arranged on the side of the fuselage.

Further, a weight mounting frame also serving as a bumper is provided at a front portion of a body frame of a tractor, which is known from Japanese Utility Model Laid-Open Publication No. Sho 56-83482 and Japanese Utility Model Laid-Open Publication No. Sho 59-57282, so that the balance weight can be easily mounted. What did
Since there is no opening between the front part of the fuselage frame and the lower front end of the bonnet, and the right and left sides of the fuselage frame are connected and fixed, the engine accessories (battery, etc.) mounted in the fuselage frame from the front Maintenance was difficult.

Accordingly, an object of the present invention is to make it easy to take out the hydraulic pressure to the front and also to make maintenance of the engine accessories (such as a battery) from the front easy.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has an engine (9) mounted on an airframe (1) and a hydraulic pump driven by the engine (9). Hydraulic pipe (4) is connected to the hydraulic pipe (4)
In a traveling work machine capable of supplying pressure oil to various hydraulic mechanisms via a hydraulic machine, an external hydraulic outlet (4a) that can be opened forward is provided at the front of the body frame (1), and the hydraulic outlet is provided. The above problem was solved by covering the front surface of (4a) with the guard member (3).

(Function) Based on the above structure, even when the cover member (3) is mounted, the hydraulic pressure extracting member (4) is connected to the pipe from the front mounting device, so that the hydraulic pressure can be easily extracted to the front. Becomes possible.

Further, by replacing the cover member (3) with a cover member (3a) having a large opening, the air flow for cooling the engine (9) is ensured even during work particularly in a hot place, so that measures against heat can be taken. Also becomes possible.

Note that the reference numerals in parentheses above are for comparison with the drawings, but do not limit the configuration of the present invention at all.

[0010]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a side view of a crawler type tractor, which transmits the power of an engine 9 mounted on a body frame 1 at a front portion of the tractor to a traveling portion, drives the crawler to move forward, and mounts the crawler rearward. A work machine is mounted via the device to drive various kinds of work machines.

Also, the power of the engine 9 is branched to drive a hydraulic pump to raise and lower the mounting device, and to drive various devices to be mounted forward by the pressure oil via the front hydraulic pressure extraction pipe 4. .

FIG. 2 is a side sectional view of a front portion of the tractor, FIG. 3 is a plan view thereof, and FIG. 4 is a front view thereof.

An airframe 1 extends forward from the front of the tractor, and a hood 2
Cover the right and left sides and the upper side of the engine 9 and the like.

The body frame 1 includes a pair of left and right plates 1.
a, 1b, and the frontmost portion is integrally formed by connecting the left and right sides.

Further, as shown in FIG.
1b, the front portion of the bonnet 2 is largely obliquely cut from the frontmost portion in a side view, and an opening is provided between the front portion of the bonnet 2 and a lower portion thereof.

The foremost part connecting the plates 1a and 1b to the left and right has a short height. Therefore, as shown in FIG. 2, even if the balance weight 10 is mounted, the balance weight 10 does not block the light beam of the headlight. When the bonnet 2 is rotated forward, the opening angle can be made large, and the inspection work becomes easy.

Between a pair of left and right plates 1a and 1b,
An engine 9 is mounted on the rear side, and a mounting table 6a for connecting the left and right plates 1a and 1b is provided in front of the engine 9. On the mounting table 6a, accessories of the engine 9, that is, a radiator 6, an oil cooler 7 are mounted. And a capacitor 8 are mounted thereon, and further in front thereof, a battery 5 is mounted so as to be shifted to one side.

As shown in FIG. 5, the front mounting brackets 1c, 1b are provided on the left and right side surfaces of the opening between the lower portion of the front end of the hood 2 and the inside of the left and right plates 1a, 1b.
A front cover 3 is mounted on front mounting brackets 1c and 1d of the bonnet 2 so as to close an opening between the bonnet 2 and the lower front end.

In particular, the front mounting bracket 1d on the side opposite to the one-sided battery 5 is extended further inward than the front mounting bracket 1c on the other side, and as shown in FIG. It supports a connection fitting 4a for connecting the front hydraulic pressure extraction pipe 4 forward.

Front mounting bracket 1 for front cover 3
As shown in FIG. 5, the d side has a notch 3 corresponding to the front hydraulic pressure extraction pipe 4 so as not to hinder the forward connection of the front hydraulic pressure extraction pipe 4 even when the front cover 3 is attached.
b is provided.

When the tractor is used in a hot place, in order to increase the air flow to the radiator 6, replace the front cover 3 with a front cover 3a having a large front opening as shown in FIG. By using it, it is possible to take heat resistance measures.

Next, the operation of this embodiment will be described.

Based on the above-mentioned structure, even when the front cover 3 is mounted, the piping from the front mounting equipment can be easily connected by the connection fitting 4a for connecting the front hydraulic pressure extraction pipe 4 to the front. Can be taken out forward.

Further, by replacing the front cover 3 with a front cover 3a having a large opening, the air flow for cooling the engine can be ensured even when working particularly in a hot place.
Countermeasures against heat are also possible.

[0026]

According to the present invention, an engine is mounted on a body frame, a hydraulic pipe is connected to a hydraulic pump driven by the engine, and pressure oil can be supplied to various hydraulic mechanisms via the hydraulic pipe. In the traveling work machine, an external hydraulic outlet that can be opened forward is provided at the front of the body frame, and the front surface of the hydraulic outlet is covered with a guard member.
It is easy to take out the hydraulic pressure to the front of the fuselage, and by removing the cover member, maintenance of the engine accessory (battery or the like) mounted in the fuselage frame from the front is facilitated. By replacing the cover member with a cover member having a large opening, measures against heat, especially in a hot ground, have become possible.

[Brief description of the drawings]

FIG. 1 is a side view of a tractor according to an embodiment of the present invention.

FIG. 2 is a side sectional view of a front portion of the tractor according to the embodiment of the present invention.

FIG. 3 is a plan view of a front portion of the tractor according to the embodiment of the present invention.

FIG. 4 is a front view of a tractor front part according to the embodiment of the present invention.

FIG. 5 is a perspective view of a body frame and a front cover according to the embodiment of the present invention.

FIG. 6 is a perspective view showing another embodiment of the front cover.

[Explanation of symbols]

 1 Body frame 2 Bonnet 3 Front cover 4 Front hydraulic outlet pipe 5 Battery 9 Engine

Claims (1)

[Claims] 1. An engine is mounted on a body frame, a hydraulic pipe is connected to a hydraulic pump driven by the engine,
In a traveling work machine capable of supplying pressure oil to various hydraulic mechanisms via the hydraulic piping, an external hydraulic outlet that can be opened forward is provided at a front portion of the body frame, and a front surface of the hydraulic outlet is provided. External hydraulic take-out device for traveling work equipment covered with guard members.