JPS6238510B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a spindle and rotary table type boring machine that can be used with both a spindle type and a rotary table type.
Boring machines are classified into two types depending on the rotation mechanism: (1) spindle type, and (2) rotary table type. The spindle type is generally used in small machines with a digging capacity of 1200m or less and 100m, whereas the turntable type is
It is often seen on large aircraft with a height of 2000 to 3000m, sometimes exceeding 5000m.

The spindle type means that the boring rod is passed through a steel pipe spindle (rotating rod) and fixed with a chuck, and by raising and lowering the spindle and rotating it, appropriate supply pressure and rotation are applied to the bit at the tip of the rod. It was designed like this. On the other hand, the rotary table type captures the drill stem with a square hole in the center of the rotary table (rotary table), and the bit supply pressure is applied to the drill stem, drill pipe, drill collar, bit, etc. This is done by appropriately adjusting the gravity of a series of drilling tools, while the bit is rotated through a drill stem, drilling pipe, etc. by rotating a turntable.

Conventionally, when a spindle-type boring machine was used to excavate for investigation purposes, if a hole with a larger diameter was to be drilled in the same location, it was replaced with a rotor-table type boring machine. In addition, when it was necessary to collect cores from medium-long sections using a rotary table, the rotary table was replaced with a spindle type. However, many of the boring locations were difficult to access and had poor terrain, requiring considerable time and expense for installation and removal.

The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a boring machine that can be used as both a spindle type and a rotary table type.

In order to achieve this object, as shown in FIGS. 1 and 2, in the present invention, the boring machine main body 10 and the rotary table 40 are moved back and forth with respect to the main body base 30, and when the rotary table 40 is used, the drill chuck 11a is moved back and forth. This is achieved by transmitting rotational force to the rotary table 40.

Examples will be described below with reference to the accompanying drawings.

Figure 1 is a front view and Figure 2 is a side view.
0 is the main body of the boring machine, and the swivel head part 11
A prime mover 17 is fixed on a slide base 20, and is connected to an intermediate gear section 12, a transmission section 13, a hoist 14, an oil motor 15, etc. via a coupling ring 16. The slide base 20 is installed so as to be slidable back and forth on the main body base 30. Claws 21 serving as left and right guides are attached to both sides of the slide base 20. 3, 4, and 5 show a rotary table, in which a reduction gear and a counter shaft are attached between a Kelly bush 41 and an input shaft 42, and the rotation of the input shaft 42 is transmitted to the Kelly bush 41. Figures 6 to 9 show the arrangement of the slide cylinders,
One end of the slide base cylinder 50 is attached to the slide base 20 and the other end to the main body base 30, and one end of the table slide cylinder 60 is attached to the main body base 30 and the other end to the rotary table 40.

When used as a spindle type boring machine, as shown in Figs. 1, 8, and 9, the slide base cylinder 50 is retracted and the slide base 20 is slid to set the drilling center at position B, and The rotary table is positioned below the slide base 20 by contracting the table slide cylinder 60 and sliding it out of the way.

When used as a rotary table type boring machine, as shown in Figs. 1, 6, and 7,
Extend the slide base cylinder 50 to slide the slide base 20, set the drilling center at position A, and extend the table slide cylinder 60 to slide the input shaft 4 of the rotary table 40.
2 (Fig. 3) to a position where it matches the center of the drilling center A, and as shown in Fig. 4, insert the other end of the attachment 11b, whose one end is attached to the drill chuck 11a, into the shaft hole of the input shaft 42. By doing so, the Cary bush 41 is rotated and bowling is performed. still,
The other end of the attachment 11b and the shaft hole of the input shaft 42 have a spline or polygon shape suitable for transmitting power.

As explained above, this invention is a completely dual-use type of spindle and rotary table, and since the drilling centers are the same, they can be used together without moving the machines, eliminating the need to replace machines and improving work efficiency. .

In addition, since it is a sliding rotary table, it is possible to pass large diameter casings, and when using the spindle, there is a large working space, and it does not get in the way when sliding the machine during rod frying work etc.

[Brief explanation of the drawing]

Figure 1 is an overall side view, Figure 2 is a front view of the same, Figure 3
The figure is a plan view of the rotary table, FIG. 4 is a longitudinal cross-sectional view of the same, FIG. 5 is a front view of the same, FIG. 6 is an explanatory plan view of the arrangement of slide cylinders and the use of the rotary table, and FIG. 7 is a side view of the same. , FIG. 8 is a plan view showing the arrangement of the slide cylinder and the spindle in use, and FIG. 9 is a side view of the same. 10... Boring machine body, 11a... Drill chuck, 11b... Attachment, 20...
Slide base, 30... Body base, 40...
Rotary table, 41...Kelly Butsuyu, 4
2...Input shaft, 50...Slide base cylinder, 60...Table slide cylinder.

Claims (1)

[Claims] 1. A spindle-type boring machine is installed on a slide base, and the slide base is installed so as to be slidable back and forth on the main body base, and is slidable back and forth between the left and right frames of the main body base, and between the input shaft and the Kelly bush a slide base having a speed reduction device, a rotary table for driving the kelly bush by fitting the other end of an attachment attached to a drill chuck into the shaft hole of the input shaft, and having one end of the cylinder fixed to the main body base; With cylinder and table slide cylinder,
A boring machine characterized in that the slide base and rotary table are moved to a fixed position.