JPS585334B2 - Kutsusakuki - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a technique for fixing an excavating device of an excavator to the ground by lowering the excavating device to a predetermined low position and fixing the excavating device to the ground.

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

Figure 1 shows a side view of a shovel loader and backhoe.
An excavation device 2 is supported at the rear of the main machine 1 via a connecting portion 3.

FIG. 2 shows an enlarged longitudinal sectional side view of the connecting portion 3.

Reference numeral 4 denotes a sliding support frame having an L-shaped cross section, which is supported by a mounting frame 5 at the rear of the machine 1 so as to be movable up and down via a four-speed link mechanism 6, and is driven and fixed up and down by a hydraulic cylinder 7. It has become so.

A sliding bracket 9 at the base end of the excavation device 20 is attached to a horizontal sliding rail 8 welded to the upper rear surface and rear upper surface of the sliding support frame 4, respectively.
is supported so as to be able to slide laterally, and is fixed at any position with bolts 10.

A horizontally long grounding plate 12 is welded to the lower surface of the sliding support punch 4 via a leg 11 made of a horizontally placed rectangular tube.

As another practical version of the present invention, the following modifications of a part of the above embodiment can be considered.

A. As shown in Fig. 3, the sliding support punch 4 is attached to the machine mounting frame 5.
It is configured such that it can be moved up and down and fixed by a pair of left and right hydraulic cylinders 14.

B. As a means for driving and fixing the sliding support frame 4 up and down, a screw type telescopic adjuster is used in place of the hydraulic cylinders 7 and 14, and this is configured to be operable by power or human power.

The C0 sliding support frame 4 is locked with lock shells such as bolts at each of the lifting position and lowering position with respect to the machine 1.

The width of the ground leg consisting of the 00 leg 11 and the ground plate 12 is 10.
This is made into a narrow piece of about 30 cm and fixed to both left and right ends of the lower part of the sliding support frame 4.

Or, in addition to this, the grounding legs 11 and 12 are also fixed at one or more locations in the middle.

E. Ground legs 11 and 12 are adjustable.

Since the present invention has the above configuration, it has the following effects.

(a) If the sliding support frame 4 is raised relative to the machine 1, the excavating device 2 can be raised high, and the machine can be moved and transported smoothly.

(b) In addition, the sliding support frame 4 is lowered and the grounding leg 11
- When the excavator 12 is grounded, the excavator 2 is securely fixed at a low position, and its excavation depth becomes deep.

(c) Moreover, since the grounding legs 11 and 12 can be reset to the ground so that the excavation equipment 2 is always at a constant height,
When the machine body movement and excavation are repeated alternately, the excavation depth can be kept accurately constant.

In addition, the ground contact areas and ground contact points of the ground legs 11 and 12 can be easily made wider and the ground contact stability performance during excavation can be improved at low cost with a simple structure.

(Since both the non-sliding support frame 4 and the sliding bracket 9 are formed in a cross-sectional shape, the support of the excavation equipment is stable, and the lateral movement of the excavation equipment can be performed smoothly.

(c) Since the grounding legs are provided on the lower surface of the sliding support frame 4, the excavating device 2 can be supported low by the sliding bracket 9, and can be dug deeply.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention; FIG. 1 is a side view, FIG. 2 is an enlarged longitudinal sectional side view of the main part, and FIG. 3 is a longitudinal sectional plan view of the main part in another embodiment. 1...Main machine, 2...Drilling equipment, 4...Sliding support frame, 11/12
...ground leg.

Claims (1)

[Claims] 1 A cross-sectional sliding support frame 4 is attached to the machine 1 so that it can be raised and lowered and fixed, and the sliding support frame 4 slides via horizontal sliding rails 8 formed on the upper back and rear upper surface of the sliding support frame 4. A sliding bracket 9 having an L-shaped cross section is supported on the support frame 4 so as to be able to slide laterally and be fixed, and the drilling equipment 2 is supported on the sliding bracket 9 so as to be swingable. An excavator characterized in that a horizontal sliding rail 8 provided on the excavator 4 is located in a vertical plane including the center of swing of the excavator 4, and ground legs 11 and 12 are attached to the lower surface of the sliding support frame 4.