JPH0742191A - Excavator with boring device for culvert drainage work - Google Patents

Abstract

PURPOSE:To provide an excavator with a boring device 'for the culvert drainage work which is handy and easy to operate and requires no skill for the boring work in particular. CONSTITUTION:A bucket 4 and a boring device 5 are fitted to the tip of the arm 3 of a back hoe 1 rotatably in the longitudinal direction. The main body 10 of the boring device 5 is freely fixed at the operating position in parallel with the arm 3 and the waiting position rotated upward. A hydraulic motor 13 is fitted at the upper end section of the main body 10. A levee footpath boring screw 14 and a U-shaped drain ditch wall boring drill 15 are fitted at the front and rear of the lower end section of the main body 10. A spirit level 16 for keeping the vertical attitude and a level rod 17 for finding the boring position are fitted to the arm 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an excavator equipped with a boring device for underdrain drainage work.

[0002]

[Object of the invention] In the underdrain drainage work, in addition to the work of excavating the ditch for laying the underdrain drainage pipe, a hole for passing the drainage pipe is formed on the ridge or under the farm road, or the sidewall of the U-shaped drainage ditch The work of opening a hole for connecting the drainage pipe is accompanied.

The inventors of the present invention have previously developed a groove digger equipped with the punching device for boring (Japanese Patent Laid-Open No. 2-3125).
In this conventional example, a punching device is attached to the rear of the excavation bucket device at the rear part of the bucket type trench digger, and it is large-scale and difficult to operate, and it requires skill especially for drilling work. Is a drawback.

In view of the above-mentioned circumstances, an object of the present invention is to provide an excavator with a perforation device for underdrain drainage construction (hereinafter, simply referred to as an excavator) that is easy and easy to operate and does not require skill in drilling work. To provide.

[0005]

The features of the construction of the excavator of the present invention are that a boring device is attached to the tip of an arm of a backhoe so as to be rotatable in the front-rear direction together with a bucket, and the body of the boring device is
The arm can be fixed to an operating position parallel to the arm and a retracted position rotated upward, and a hydraulic motor is attached to the upper end of the arm, and a ridge hole drilling screw is provided on the front and rear sides of the lower end. The point is that a U-shaped drainage hole wall drill is attached, and further, a level for setting the arm in a vertical posture and a staff for knowing the drilling position are attached to the arm.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the drawings showing one embodiment of the present invention, 1 is a backhoe, 2 is a first arm that is supported by the main body of the backhoe 1, and 3 is a second arm that is pivotally supported at the tip of the arm 2. The punching device 5 is attached to the tip of the arm 3 together with the bucket 4 by a pin 6 so as to be rotatable in the front-back direction.

The tip of the rod 8 of the hydraulic cylinder device 7 is
It is adapted to be selectively attached to the bucket 4 and the rear extension 9 of the piercing device 5, and is attached to the rear extension 9 of the piercing device 5 in FIG. 1 and to the bucket 4 in FIG. There is.

The body 10 of the punching device 5 can be fixed to an operating position parallel to the arm 3 shown in FIG. 1 and a retracted position rotated upward shown in FIG. The rear extension 10 is fixed to the arm 3 with a pin passed through.

A hydraulic motor 13 is attached to the upper end of the body 10 of the punching device 5, and a ridge boring screw 14 operated by the power of the hydraulic motor 13 is provided on the front and rear sides of the lower end of the body 10. And U-shaped drain groove wall drills 15 are attached, respectively, and the ridge hole screw 14 is removable.

The arm 3 is provided with a level 16 for placing the arm 3 in a vertical posture and a staff 17 for knowing a drilling position. The staff 17 can be moved in the longitudinal direction of the arm 3. .

When performing the underdrain drainage construction using the above-mentioned excavator, first, the adjacent portion 19 of the ridge 18 is excavated by the bucket 4 as shown in the figure, and then the rod 8 of the hydraulic cylinder device 7 is excavated.
The tip of the hole is removed from the bucket 4 and attached to the rearward extending portion 9 of the punching device 5 with a pin passed through the hole 20.
The rearward extending portion 9 of the punching device 5 is fixed to the arm 3 with the pin passed through, and the main body 10 of the punching device 5 is fixed to the operating position parallel to the arm 3.

Next, the backhoe 1 is advanced with the arm 3 rotated upward, the punching device 5 is lowered inside the U-shaped drain 21, and the arm 3 is placed in a vertical state to open the U-shaped drain wall. Use the drill 15 to make a hole 22 in the side wall of the U-shaped drain 21
At the same time, the laser of the laser level 23 is applied to the staff 17 and the position of the hole 22 is measured.

Then, the backhoe 1 is retracted to the position shown in FIG. 1, the arm 3 is vertically moved and moved up and down, and the ridge boring screw 14 measures the hole 2 previously measured.
After making it come to the position of 2, the backhoe 1 is advanced and the hole 24 is made in the ridge 18 by the ridge hole drilling screw 14.

When the drilling work is completed as described above, the tip of the rod 8 of the hydraulic cylinder device 7 is attached to the bucket 4 again, and while the backhoe 1 is being retracted, the bucket 4 is used to excavate the groove for the underdrain drainage pipe laying. To do.

[0015]

The excavator of the present invention is as described above, and the perforator is attached to the backhoe. Therefore, the excavator is easier to operate by hand than the conventional example described above.
You can drill holes in the sidewalls of U-shaped drains with a U-shaped drainage hole drilling hole, and then you can drill holes in the ridges with ridge-hole drilling screws. Moreover, these drilling operations can be seen from the driver's seat of the backhoe. However, there is an advantage that special skill is not required for the drilling work.

[Brief description of drawings]

FIG. 1 is an overall side view for explaining the configuration and usage of an embodiment of the present invention.

FIG. 2 is likewise an enlarged side view of a main part.

[Explanation of Codes] 1: Backhoe, 2, 3: Arms, 4: Bucket, 5:
Punching device, 6: Pin, 7: Hydraulic cylinder device, 8: Rod, 9: Rear extension part, 10: Main body, 11, 12: Hole, 1
3: hydraulic motor, 14: levee boring screw, 15:
U-shaped drain ditch wall drilling drill, 16: level, 17: staff, 18: ridge, 19: adjacent part, 20: hole, 21: U-shaped drain, 22: hole, 23: laser level, 24: Hole.

Claims (1)

[Claims] 1. A boring device is attached to a front end of an arm of a backhoe so as to be rotatable in a front-rear direction together with a bucket, and a body of the boring device is placed in an operating position parallel to the arm and a retracted position rotated upward. In addition to making them freely fixable, attach a hydraulic motor to the upper end, and also attach a ridge hole drilling screw and a U-shaped drainage wall hole drilling to the front side and the rear side of the lower end, respectively, and further, to the arm, An excavator with a drilling device for underdrain drainage construction, which is equipped with a level to set the arm in a vertical position and a staff to know the drilling position.