JPH01109086A - Wrench - Google Patents

Abstract

PURPOSE: To clamp different-diameter pipes by one wrench by turnably mounting one side of a wrench cylinder to a wrench body provided with a pair of clamp heads adapted to be position-adjusted by a position controlling device and turnably mounting the other side to a base frame. CONSTITUTION: One side of a wrench cylinder 1 is turnably mounted to a wrench body 2 in which a fixed side clamp head 5 and a moving side clamp head 7 are arranged, and the other side of the wrench cylinder 1 is turnably mounted to a base frame 3. Depending on the diameter of a pipe held by these clamp heads 5, 7, the position of the wrench body 2 is shift-adjusted by moving the outer rollers 13 fitted onto a control shaft 9 of the wrench body 2 along a guide 8 of the base frame 3. In this adjusted state, a rod of a reset cylinder 1 is pushed out, and the outer roller 13 is pressed against the left-upward corner of the guide 8 by means of a reset piece 11 on the tip of the rod to fix the wrench body 2 to this position.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a wrench that can grip and rotate pipes of different diameters without replacing parts.

Conventional hydraulic wrenches can only be used for pipes with a diameter of 1.
There was a problem that the type was limited, and if the diameter changed, some parts had to be replaced.

An object of the present invention is to provide a wrench that solves the above-mentioned problems, and the wrench of the present invention that meets the above-mentioned purpose has one side of the wrench cylinder, a fixed side clamp head and a movable side clamp head. The wrench is rotatably attached to the wrench bodies disposed opposite to each other, while the other side is rotatably attached to the base frame, and a position control device for the wrench body is provided on the wrench body and the base frame. .

Hereinafter, the wrench of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 shows a wrench A attached to a drill machine to be described later. Wrench A has one side of a wrench cylinder 1 rotatably attached to a wrench body 2, and the other side attached to a base frame 3.
It is rotatably attached to the wrench body 2 and the base frame 3,
A position control device for the wrench body 2 is provided. To explain in more detail, the wrench body 2 has a stationary clamp head 5 with a V-shaped end face on one side of the U-shaped wrench frame 4, and a movable clamp head 7 movable by a clamp jack 6 on the other side. The position control device includes guides 8.8 (approximately parallelogram-shaped holes in the drawing) provided at the rising parts on both sides of the base frame 3,
Guides 8. provided at the lower end of the wrench main body 2 and on both sides.
8 and a control shaft 9 whose both ends are inserted.

In the figure, 10 is a reset cylinder provided on the base frame 3, 11 is a reset piece attached to the rod tip of the reset cylinder 10, and 12 and 12 are wrench frames 4.
A bracket provided on the lower side of the , through which the control shaft 9 passes;
13. 13 is an outer roller that is externally mounted on both sides of the control shaft 9;
4.14 is a slide cylinder with an inner roller fitted on the inside thereof.

Next, the operation of the wrench having the above structure will be explained with reference to FIGS. 1(B) to 5.

FIG. 1(B) shows that the rod of the reset cylinder 10 is pushed out, and the reset piece 11 at the tip is used to push out the inner roller 14.
Press and press the outer roller 13 against the upper left corner of the guide 8.
The control shaft 9 is fixed, and the rod of the wrench cylinder 1 is pushed out to show the state in which the wrench body 2 is fixed.

FIG. 2 shows the wrench body 2 rotated counterclockwise by pulling the rod of the wrench cylinder 1 from the state shown in FIG.
Figure 3 shows the rod of the reset cylinder 10 pulled to its fully retracted position. When the rod of the reset cylinder 10 is pulled from the state shown in FIG.

The reset piece 11 tries to move away from the inner roller 14, but since the control shaft 9 is lowered by the wrench body 2, the inner roller 14 moves along the slope of the reset piece 11.
The outer roller 13 descends along the guide 8, the control shaft 9 is stabilized at the lowest left corner of the guide 8, and the reset piece 11 is separated from the inner roller 14 to be in the state shown. At this time, the rod of the wrench cylinder 1 is in the most contracted state, and the center line of the clamp head - (the center line of the moving side clamp head 7 and the fixed side clamp 5)
18 and work reference line (pipe: the center line in the I-axis direction of the pipe, etc. when rotating the pipe, etc.) 19
are designed so that they almost intersect. This state becomes the initial state when clamping the pipe 20, etc.

FIG. 4 shows a pipe 20 that is fixed in position centered on the work reference line 19. The clamp jack 6 is operated from the state shown in FIG. 'When it is moved toward the lamp head 5, the movable side clamp head 7 comes into contact with the pipe 20. When the movable side clamp head 7 is moved further, the wrench frame 4 is moved because the pipe 120 is fixed in position. Then, the fixed side clamp head 5 comes into contact with the pipe 20.If the center line 18 of the clamp head and the work reference line 19 do not intersect, the fixed side clamp head 5 will move toward the pipe 20. Only one point of the V-shaped end surface comes into contact with the pipe 20. 1C1 When the movable side clamp head 7 is moved further.

, l, l The foot side clamp head 5 contacts the pipe 20 at two points, the work reference line 19 and the middle/6th line 18 of the clamp head.
The pipe 20 becomes stable when it intersects, and the pipe 20 is clamped. If the rod of the wrench cylinder 1 is pushed out here, the wrench body 2 rotates clockwise around the work reference line 19 while clamping the pipe 20, and when the operation is reversed: rubbed, it rotates in the opposite direction.

FIG. 5 shows a state in which the wrench body 2 is clamped to a pipe 20' having a smaller diameter than the pipe 20, and the wrench body 2 has moved further to the right compared to FIG. When the wrench block 2 moves, the outer roller 13 moves along the guide B and moves accordingly.

The structure and function of the wrench of the present invention have been explained above.
It may be provided on the side, or another control device 211 may be used to control the position of the wrench body. Next, the above wrench A4
i-';Drill that arrived at A? I will explain to Shin next.

Figure 6 shows a state in which drilling machine B installed at the bottom of the shaft 21 is drilling in the horizontal direction, C is a drill rig equipped with drill machine B that sets the drilling position and direction, and D is drill machine B. drill rods sequentially connected to
E is a bit attached to the drill rod D at the tip.

FIG. 7 shows an outline of a drill machine B, in which a wrench A is mounted on a guide cell 15 so as to be movable. In addition, 17 is a slide cylinder for sliding the wrench A, 22 is a drill head that generates the impact force and rotational force necessary for drilling, 2
3 is a shank rod for transmitting the impact force generated by the drill head 22 to the outside, and 24 is a shank rod for transmitting the impact force and rotational force transmitted from the shank rod to the drill rod, and for discharging the excavated slime. A flushing base for water supply and drainage, and 27 a backup cylinder for fixing the drill machine B using the wall of the shaft, etc.

I= is a lentralizer, which consists of a guide to prevent the eccentricity of the drill 11d D during drilling, and a clamp mechanism to hold the casing tube when adding or retrieving the casing tube of the drill rod. There is.

FIG. 8 shows the flushing head 24 and the drill rod D attached thereto, and the flushing head 24 has a screw hole 34 on one side of the adapter 28 into which the shank rod 23 is screwed.

A screw hole 30 into which the inner coupling 29 is screwed is provided on the other side, an adapter sleeve 32 into which the casing coupling 31 is screwed is attached to the outside of the screw hole 30, and a swivel 33 is rotatably provided on the outside of the adapter sleeve 32. It is. The drill rod D is composed of a casing coupling 31, a casing duplex 35 connected by the casing coupling 31, an inner coupling 29, and an inner tube 36 connected by the casing coupling 31. Ring bit 37 and inner bit 3 as shown
A bit E consisting of 8 is attached.

To drill a hole, operate the drill head 22 while supplying water from the water supply port 39 of the swivel, and press the shank rod 23.
Then, impact force and rotational force are transmitted to the drill rod D via the flushing head 24 to perform drilling. The water supplied from the water supply port 39 is sent to the bit E through the inner tube 36, mixed with the slime excavated by the bit E, and then flows through the inner tube 36 and the casing tube 35.
It passes through the gap and is discharged from the drain port 40 of the swivel 33.

Although drilling is performed using the above method, the casing tube 35 and the inner tube 36 must be added one after another as the drilling progresses, and even when the drill rod D is recovered after the drilling is completed, the casing tube 35 and the inner tube 36 must be added one after another as the drilling progresses. must be unscrewed and recovered one after another.

As mentioned above, conventional hydraulic wrenches can only be used in one size, so they can only be used for screwing in and out of casing tubes and casing couplings, and they can only be used for screwing in and out of casing tubes and casing couplings. Threading and unthreading is done manually using a pipe wrench, etc., which requires time to open and open, and with conventional hydraulically driven wrenches used for casing tubes, the wrench is manually set on the casing tube and rotated using hydraulic pressure. Therefore, if care was not taken when operating the hydraulic pressure, accidents such as pinching of the person's fingers while setting the wrench could occur, posing a major safety problem.

However, in a drill machine equipped with the wrench of the present invention, for example, by positioning a casing tube 35 and a casing coupling 31 instead of the pipe 20 shown in FIG. 4, and clamping these and rotating the wrench body 2, It is possible to screw the inner tube 36 in place of the pipe 20' shown in FIG.
By positioning and clamping the inner coupling 29 and rotating the wrench body 2, it is possible to unthread or screw the wrench. Also, wrench A is guide cell 1
5, the inner tube, casing tube, etc. can be attached and detached at the optimal location depending on the purpose.

In this invention, when drilling downward, etc., when the position of the control shaft is difficult to reach the position shown in Figure 3 due to the weight of the wrench body, a spring or the like is used to move the wrench body closer to the base frame. A mechanism may also be provided. Further, the work reference line 19 is also the center line of the drill rod during drilling.

The present invention is constructed as described above, and has the advantage that a pipe or the like can be clamped and rotated regardless of its diameter.

[Brief explanation of the drawing]

Figure 1 (A) is a sectional view of wrench A taken along line AA in Figure 1 (B), and Figures 1 (B) to 5 are front views showing the operation of wrench A that is freely movable attached to guide cell 15↓. 6 is an explanatory view showing the state of drilling by the drill machine B in a shaft, FIG. 7 is a side view of the drill machine B, FIG. 8 is a sectional view of the flushing head 24 equipped with the drill rod D, and FIG. The figure is a sectional view of a drill 1-1 drill D equipped with a bit. 1...Wrench cylinder 2...Wrench body 3...
・Base frame 5...Fixed side clamp head 7...
Moving side clamp head Fig. 2 Fig. 3

Claims (1)

[Claims] One side of the wrench cylinder is rotatably attached to the wrench body, which has a fixed side clamp head and a movable side clamp head facing each other, and the other side is rotatably attached to the base frame, and the wrench body position control device is used. A wrench characterized in that the above-mentioned wrench body and base frame are provided with.