JPH0633032Y2 - Ground drilling machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to improvement of a ground drilling machine.

(Prior Art) This type ground drilling machine is one in which the boring rod attached to the main body of the drilling machine is repeatedly struck while being rotated to load and drill the boring rod into the ground. Medium, if the punching machine unexpectedly moves due to the punching reaction force, it will not be possible to drill correctly in the predetermined direction.Therefore, in the past, the base that supports the punching machine body was grounded and the drilling resistance was used to secure the drilling machine. In order to change the direction of the boring machine and to move it straight, an external driving device such as a winch or a crane is used.

(Problems to be Solved by the Invention) According to the above-mentioned conventional ground boring machine, since the direction change and the straight-ahead operation are performed with the help of the external drive device, it is troublesome for the direction change and the straight-ahead operation. It takes time and hinders the efficiency of the drilling work.

In view of the above-mentioned conventional problems, the present invention aims to provide a ground drilling machine which can be fixed by grounding resistance during drilling work, and which can quickly and easily perform self-propelled direction change and rectilinear operation. I am trying.

(Means for Solving the Problems) In order to achieve the above object, the present invention provides a guide frame 3, on which bases 2 supporting a punching machine main body 1 are mounted on both side surfaces thereof.
A pair of fluid pressure cylinders mounted on a pair of skid bars 4 and 4 via 3 to relatively move the base 2 and the pair of skid bars 4 and 4 in the longitudinal direction of the skid bars 4 and 4. 5 and 5 are provided between the guide frames 3 and 3 and the skid bars 4 and 4, respectively, and the base 2 and the pair of skid bars 4 and 4 are not grounded. It employs a configuration in which an outrigger 6 for lifting is attached.

(Operation) According to the above configuration, since the punching machine body 1 is grounded through the pair of skid bars 4 and 4, the punching machine body 1 is securely fixed by the grounding resistance during the drilling work. Thus, it is possible to accurately form a hole in a predetermined direction in the ground.

Further, as shown in FIGS. 6 (a) to 6 (c), the pair of fluid pressure cylinders 5 and 5 move the pair of skid bars 4 and 4 in opposite directions. The perforator body 1 can be turned to a desired direction, and as shown in FIGS. 7 (a) to (e), the outriggers 6 can be extended from the state where the skid bars 4 and 4 are grounded. After raising the base 2 and the skid bars 4 and 4 to the non-grounded state, the pair of fluid pressure cylinders 5 and 5 move the pair of skid bars 4 and 4 in one direction, and then the outrigger 6 contracts. Then, the pair of skid bars 4, 4 are grounded, and then the base 5 is moved by the pair of fluid pressure cylinders 5, 5 in the same direction as the moving direction of the skid bars 4, 4, and by repeating this operation, Move the ground drilling machine to the specified position. Manner, can be straight activated by operation similar to the movement of the so-called inchworm.

(Embodiment) FIG. 1 and FIG. 2 show a ground boring machine as one embodiment of the present invention, in which a base 2 having a square shape in plan view for supporting a boring machine body 1 is provided on both side surfaces thereof. Attached guide frames 3, 3
A pair of fluid pressure cylinders 5 mounted on a pair of skid bars 4 and 4 via the above to move the base 2 and the pair of skid bars 4 and 4 relatively in the longitudinal direction of the skid bars 4 and 4. , 5 are provided between the guide frames 3 and 3 and one ends of the pair of skid bars 4 and 4, and the base 2 and the pair of skid bars 4 and 4 are provided near the four corners of the base 2.
Four outriggers 6, which are hydraulic jacks, are mounted to lift 4 into a non-grounded state.

As shown in FIG. 3, the boring machine body 1 includes a striking device 9 for repeatedly striking the boring rod 8 while rotating the boring rod 8, and a guide cell 10 for guiding and supporting the striking device 9 and the boring rod 8 in the excavation direction. , The above guide cell 10
And a tilting mechanism 11 for tilting the guide cell 10. After tilting the guide cell 10 by a predetermined angle by the tilting mechanism 11,
While the boring rod 8 is being rotated by the striking device 9, the boring rod 8 can be repeatedly struck to drive the bone ring rod 8 into the ground in a predetermined direction to pierce it.

As shown in FIG. 4, the skid bar 4 has a substantially U-shape, and grounding portions 4a, 4a are provided at both ends of the skid bar 4 so as to project downward, and one end portion of the skid bar 4 has a protruding portion 4b for connecting a fluid pressure cylinder. Is projecting upward. Further, the guide frame 3 has a substantially U-shaped transverse cross section at its central portion, and is fixed by a bolt 13 to a mounting plate 12 fixed to the side surface of the base 2. The central portion 4c of the skid bar 4 is slidably pierced through a cylindrical body formed by the mounting plate 12 and the mounting plate 12. A bracket 14 for connecting a fluid pressure cylinder is projected on the upper surface of the guide frame 3.

As shown in FIG. 5, the outrigger 6 is composed of a fluid pressure cylinder, and the ground plate 15 fixed to the tip of its piston rod is grounded as shown by the phantom line in FIG. The skid bars 4 and 4 can be lifted up to be in a non-grounded state.

In the above configuration, since the punching machine body 1 is grounded through the pair of skid bars 4 and 4, the punching machine body 1 can be securely fixed by the grounding resistance during the drilling work, and the punching machine body 1 can be fixed to the ground in a predetermined direction. The holes can be accurately drilled.

When changing the direction of the punching machine, as shown in FIG. 6 (a), the pair of skid bars 4 and 4 are positioned in the left and right opposite directions and then the pair of skid bars 5 and 5 are moved by the fluid pressure cylinders 5 and 5. The skid bars 4 and 4 may be moved in opposite directions. As a result, the pair of skid bars 4 and 4 are forced to slide on the ground in the opposite directions, and the ground resistance generated at that time causes the base 2 to horizontally rotate as shown in FIG. As shown in FIG. (C), the punching machine can be turned to a desired direction.

Further, when the punching machine is operated straight, the outrigger 6 is extended from the state where the skid bars 4 and 4 are in contact with the ground as shown in FIG. 7 (a), as shown in FIG. 7 (b). Then, the base 2 and the skid bars 4 and 4 are lifted to bring them into a non-grounded state, and then the fluid pressure cylinders 5 and 5 move the skid bars 4 and 4 in one direction as shown in FIG. Let
Next, as shown in FIG. 3D, the outrigger 6 is contracted to ground the skid bars 4 and 4, and subsequently, FIG.
As shown in FIG. 5, the hydraulic cylinders 5 and 5 move the base 2 in the same direction as the skid bars 4 and 4, and by repeating this operation, the boring machine is self-propelled to a predetermined position, that is, It can be operated by itself by a motion similar to the movement of a so-called worm.

In the above embodiment, the pair of skid bars 4 and 4 are attached to both side surfaces of the base 2 so that the punching machine can be operated straight forward and backward, but when the punching machine is operated straight left and right. As shown in FIG.
The pair of skid bars 4 and 4 are attached to the front and rear surfaces of the base 2 by fixing the guide frame 3 to the attachment plates 12 fixed to the front and rear surfaces of the base plate 2 with the bolts 13, and the above-described operation can be performed in this state. Good.

(Effect of the Invention) According to the present invention, since the base supporting the punching machine main body is grounded via the pair of skid bars,
During the boring operation, the boring machine main body can be securely fixed by the ground resistance, and a hole in a predetermined direction can be accurately bored in the ground.

Further, by moving the pair of skid bars in mutually opposite directions, the grounding resistance generated at that time can change the direction of the punching machine main body in a desired direction, and the pair of skid bars can be formed by the outrigger and the pair of fluid pressure cylinders. By moving the base and the base in a movement similar to the movement of a so-called worm, and repeating the movement, the ground boring machine can be moved straight to a predetermined position, and it is particularly self-propelled. As a result, it is possible to change direction and move straight ahead more quickly and easily than in the past, which can contribute to the efficiency of the drilling work.

[Brief description of drawings]

FIG. 1 is a side view of a ground drilling machine which is an embodiment of the present invention, FIG. 2 is a plan view of the same, FIG. 3 is a longitudinal sectional view of the same, and FIG. 4 is an exploded perspective view of the same part, FIG. Is an enlarged cross-sectional view of the main part, FIG.
(a) ~ (c) is a plan view showing the procedure for changing the direction of the Aircraft, Fig. 7
(a)-(e) is a side view which shows the straight-ahead operation procedure of the same machine, and FIG. 8 is a top view which shows the same modification. 1 ... Punch body, 2 ... Base, 3 ... Guide frame, 4 ...
… Skid bar, 5 …… Fluid cylinder, 6 …… Outrigger.

Claims (1)

[Scope of utility model registration request] 1. A base supporting a punching machine main body is mounted on a pair of skid bars through guide frames attached to both side surfaces thereof, and the base and a pair of skid bars are longitudinally arranged on the skid bar. A pair of fluid pressure cylinders for relative movement in the direction are provided between the guide frames and the skid bars, and the base and the pair of skid bars are lifted to the non-grounded state on the base. A ground drilling machine equipped with an outrigger.