JP2860746B2 - Slope drilling equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a slope drilling apparatus for drilling anchor insertion holes in construction of a sill, and more particularly to a drill having a drilling machine attached to the tip of a backhoe or crane. Related to the device.

[0002]

2. Description of the Related Art In a frame method such as a so-called free frame method, an anchor is inserted at an intersection of the law frames, but it is necessary to drill an insertion hole.

Conventionally, in general, a scaffold is set on a slope, a drilling machine is brought into the scaffold, and a hole is drilled. When the intersection of the object is completed, the hole is moved to the next intersection and drilled.

[0004] In this case, the applicant has previously disclosed in Japanese Patent Publication No. 2-57612, a swing table at the tip of a crane in view of the fact that assembling a scaffold or moving a drilling machine requires a great deal of work. A drilling machine (first prior art) in which a drilling machine is provided so as to be able to freely move up and down was proposed and applied to many on-site construction works, and its practicality was confirmed to be high.

On the other hand, Japanese Utility Model Publication No. 3-46042 proposes that a guide rail is provided on a side surface of a bucket attached to an arm at the tip of a backhoe, and a drilling machine is provided on the guide rail (second example). Precedent example).

[0006]

However, in the first prior example, the crane's boom has a high reaching height, so that it is most suitable for work at high places. However, as is apparent from FIG. 4 of the publication, a dead zone remains in a lower portion near the center of the swivel. The drilling of the anchor hole is generally performed at right angles to the slope.

However, the swing angle of the swing cylinder in the first prior art is about 90 degrees, and when the boom is swung left and right from the crane center, the drilling machine is positioned at right angles to the slope. There are things you can't do.

On the other hand, the backhoe type in the second prior art is not suitable for working at high places due to the limitations of the length of the boom and the arm, but is suitable for working at low places. But,
In the second preceding example, even if a hole can be drilled at different positions in the height direction with the backhoe facing the front with respect to the slope, the drilling direction must be orthogonal to the slope. Because of this, it is necessary to move the backhoe by the pitch of the intersection point and perform another frontal punching (drilling) to the adjacent position in the normal width direction, and the workability is not so high.

[0009] Therefore, an object of the present invention is to increase the drillable range and improve workability when a backhoe or a crane is positioned at a certain position.

[0010]

SUMMARY OF THE INVENTION The object of the present invention is to provide, when a backhoe is used, a first arm in which a bracket is rotatably supported on a distal end arm of the backhoe around a horizontal axis, and one end is connected to the arm. The other end of the lifting cylinder is connected to the bracket, and the first lifting cylinder cylinder is expanded and contracted to mount the bracket so that it can be raised and lowered. The first pedestal is fixed to the bracket, and the first pedestal is detachably attached to the first pedestal. A second pedestal is provided, a oscillating base is provided with a oscillating center with respect to the second pedestal, and the oscillating base is provided by a oscillating cylinder so as to be able to swing freely with a rotation angle of less than 360 degrees. A drilling machine is attached to the tip side of the oscillating table with a rotation center in a direction orthogonal to the axial direction, and the rear end side of the drilling machine and the oscillating table are connected by a second lifting cylinder, The said The expansion and contraction of Fukuossha cylinder mounting the drilling machine freely Fukuossha, further along the circumference around the shaft center that intersects the first seat, the first seat and second
A bolt fastening hole is formed in each of the pedestals, and a circumferential position of the second pedestal with respect to the first pedestal is selectable, and the second pedestal is bolted to the first pedestal.

In the case where a crane is used, a crane having a swivel that can turn around a vertical axis with respect to the ground and a boom provided to be able to extend and retract with respect to the turntable is provided. A first pedestal is fixed directly to the end of the boom or via a bracket, and a second pedestal is detachably provided on the first pedestal. The oscillating table is provided by a oscillating cylinder so as to be swingable with a rotation angle of less than 360 degrees, and a drilling machine is attached to a tip side of the oscillating table with a rotation center in a direction orthogonal to the axial direction. A rear end side of the drilling machine and the oscillating table are connected by a lifting cylinder, and the drilling machine is mounted to be capable of raising and lowering by expansion and contraction of the lifting cylinder, and further, an axis crossing the first pedestal. Around the core A bolt fastening hole is formed in each of the first pedestal and the second pedestal along the circumference, and the circumferential position of the second pedestal with respect to the first pedestal can be selected so that the second pedestal is bolted to the first pedestal. It is characterized by the following.

[0012]

According to the present invention, when a swing table for mounting a drilling machine is attached to a backhoe or a crane,
A swing table that does not fully rotate and usually does not have a swing angle of about 90 is moved between the first pedestal and the second pedestal along a circumference centered on an axis intersecting the first pedestal. By changing the position of the second pedestal, the swing limit of the swing table can be compensated.

With this arrangement, drilling is performed at almost all positions in the height direction at the position where the boom and arm of the backhoe are swung left and right toward the slope, or the boom of the crane is swung left and right toward the slope. The drill can be drilled with the machine perpendicular to the slope.

[0014]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of the present invention. FIG. 1 shows the entire backhoe, in which a swivel 2 on which a driver's seat 2A, a hydraulic device, a control device, and the like are mounted on a traveling body, in the illustrated example, a caterpillar 1, is rotatably provided around a vertical axis. .

A boom 3 is provided on the swivel base 2 via a horizontal rotating shaft 4 so as to be able to be raised and lowered. The lower part of the boom 3 is pivotally supported by the swivel 2 and the end of the cylinder rod is connected to the boom 3 by a boom operating cylinder 5.
This is performed by the expansion and contraction operation of. An arm 6 is connected to the end of the boom 3 via a horizontal rotation shaft 7 so that the arm 6 can be turned up and down with respect to the boom 3. The arm 6 has an arm operating cylinder 8 having a lower end pivotally supported by the boom 3 and a distal end of a cylinder rod connected to a rear end of the arm 6.
This is performed by the expansion and contraction operation of. Such a structure is known in backhoes.

According to the present invention, the bracket 9 is rotatably supported on the arm 6 around the horizontal rotation axis 9A, and the other end of the first lifting cylinder 10 having one end connected to the arm 6 is connected to the bracket 9. Then, the bracket 9 is attached to be able to be turned up and down by the expansion and contraction of the first cylinder 10.

This bracket 9 includes a first
Attachment 3 via pedestal 31 and second pedestal 32
3 is attached to the attachment 33, and the swing table 11 is provided to be freely swingable via the swing shaft 12. The swing table 11 is swung by the swing cylinder 13. That is, in the embodiment, the rear end of the oscillating cylinder 13 is connected to the oscillating base 11 by a trunnion method via the connecting shaft 13A, and the tip of the cylinder rod is connected to the oscillating base 11 by the connecting shaft 13B. As shown by the imaginary line in FIG. 5, the swing of the swing cylinder 13 allows the swing of the swing cylinder 13 to be about 90 degrees.

Further, a drilling machine 20 is mounted on the tip end side of the oscillating table 11 with a support shaft 14 having a center of rotation in a direction orthogonal to the axial direction thereof. Further, the rear end side of the drilling machine 20 and the oscillating table 11 are connected by a second lifting cylinder 15 via connection shafts 15A and 15B at both ends.

The drilling machine 20 is not limited as long as it has a drilling function.
1 is a drifter drill that moves forward and backward by a chain 24 around which a hammer drifter 22 is wound back and forth by the rotational driving force of a feed motor 23. Drifter 22
Is mounted with a drilling rod 25 having a bit 25a at the tip, and a rotation and impact force is applied to the rod 25 using air as a driving source.

Under such a configuration, for example, FIG.
As shown in the figure, backhoe M is parallel to the slope (road direction)
When the turntable 2 is turned to make it orthogonal to the slope E (orthogonal to the road) in a state where the boom 3 and the arm 6 are viewed from above, the boom 3 and the arm 6 are orthogonal to the slope E.

In this state, the boom operating cylinder 5 and the arm operating cylinder 8 are operated to roughly position the drilling machine 20 at a target drilling height position. Next, the first cylinder 10 and the second cylinder 15 are operated to make the drilling machine 20 perpendicular to the slope. In this case, workability is excellent if the angle of elevation is adjusted by operating the first elevation cylinder 10 and then the angle is finely adjusted by the second elevation cylinder 15. In this state, the rotation driving force of the feed motor 23 causes the hammer drifter 22 to rotate.
Is advanced to the guide cell 21 and drilling is performed by the drilling rod 25.

When the drilling is completed, the drilling machine 20 is retracted from the slope, and then, for example, the boom operating cylinder is positioned to position the drilling machine 20 at an intersection one pitch above the intersection. 5 and the arm operation cylinder 8 are operated to roughly position the drilling machine 20 at the intersection of the next object, and then the first and second elevation cylinders 10 and 15 are actuated for fine adjustment positioning. After that, the intersection is drilled. Such a drilling operation is performed on a plurality of intersections in the height direction.

Next, after swiveling the swivel 2 at a certain angle with respect to the adjacent intersection in the normal width direction, the boom operating cylinder 5 and the arm operating cylinder 8 are operated, and the drilling machine is moved to the adjacent intersection. 20 is roughly positioned. In this case, the swivel 2 is compensated for by a certain angle, and the drilling machine 2
In order to make 0 orthogonal to the slope E, the swing cylinder 13 is operated to make the drilling machine 20 orthogonal to the slope E. Usually, the first cylinder 10 and the second cylinder
After the positioning of fine adjustment of the drilling machine 20 is performed by operating the elevation cylinder 15, drilling is performed at the intersection. Such a drilling operation is performed on a plurality of intersections in the height direction of adjacent intersections. In this case, in order to make the drilling machine 20 perpendicular to the slope E, it is necessary to finely adjust the swing angle of the swing cylinder 13 for each height.

Omitting the swing by the swing cylinder 13 and trying to drill a hole only with the swivel 2 perpendicular to the slope E requires moving the backhoe M toward the road each time. , The workability is reduced.

Thus, drilling can be performed at a position where the boom 3 and the arm 6 can reach without moving the backhoe M. When the reaching distance limit is reached, the backhoe M is moved to the next point, and holes are drilled at all the intersections in the adjacent area.

Thereafter, the entire target slope E is drilled in the same manner.

In the present invention, the first lifting cylinder 10
The elevation angle can be taken with only one of the second elevation cylinder 15 and the second elevation cylinder 15. However, since there are both cases where the arm 6 is directed downward and upward, the first elevation within one of these large angle ranges. It cannot be shaken only by the supine cylinder 10 or the second supine cylinder 15. Therefore, both cylinders 10 and 15 are provided. In addition, the workability is significantly improved by performing the coarse adjustment of the elevation angle with the first elevation cylinder 10 and the fine adjustment with the second elevation cylinder 15.

The above-mentioned work order is a general example.
For example, the slope should be even, but usually
Because of the unevenness, an optimal operation procedure can be adopted according to the site. For this reason, the first cylinder 1
The elevation angle is adjusted by both the 0 and the second elevation cylinders 15, and the swing of both the swivel 2 and the swing base 11 is important.

On the other hand, when the backhoe M is largely swung left or right toward the slope, the swing angle of the swing table 11 (about 90 degrees) in order to make the drilling machine 20 perpendicular to the slope.
Limits may occur. In particular, this is a case where the slope has irregularities at the target position.

Therefore, in the present invention, the assembled state is shown in FIG. 4, the first pedestal 31 is shown in FIG. 6, and the second pedestal 32 is shown in FIG.
Are provided as shown in FIG.

That is, the first pedestal 31 has a square bottom plate portion 31A, a cylindrical portion 31B protruding at the center thereof, and a flange portion 3 projecting from the middle of the cylindrical portion 31B to the periphery.
1C are formed respectively. The bottom plate portion 31A and the flange portion 31C are reinforced by a reinforcing rib 31D, and the bottom plate portion 31A is formed with an insertion hole 31E for fixing a bolt to the bracket 9, and furthermore, the flange portion 3 is formed.
In 1C, first bolt fastening holes 31F are formed at intervals of 15 degrees in the circumferential direction, for example.

The first pedestal 32 has a square upper plate 32A.
And a ring-shaped lower plate portion 32B and a connecting plate portion 32C for connecting the lower plate portion 32B and the upper plate portion 32A.
3 is formed with an insertion hole 32D for fixing the bolt, and the lower plate portion 32B is provided with the first bolt fastening hole 31F.
Correspondingly, the first bolt fastening holes 32E are formed at intervals of 15 degrees in the circumferential direction, for example.

As shown in FIG. 4, the first pedestal 31
Is externally fitted to the second pedestal 32 around the cylindrical portion 31B, and both are connected by fastening bolts 34. 35 is a fixing bolt for fixing the second pedestal 32 to the attachment 33. Reference numeral 36 denotes a retaining bolt for preventing the second pedestal 32 from coming off the first pedestal 31.

In such an angle adjusting means, for example, as shown in FIG. 2, the swivel table 2 is swung with respect to the caterpillar 1 with respect to the slope while exclusively swinging within the angle range between the front and the right. When drilling while sequentially moving the caterpillar 1 to the left by a certain length, when the upper and lower sides in FIG. 6 are the reference front direction, the second pedestal 32 is swung counterclockwise by a certain angle. In this case, the bolts 34 are connected together. Thereby, even if the boom 3 and the arm 6 are extremely swung clockwise in FIG. 2, it is possible to drill holes at all intersections in the height direction under the same horizontal swing angle. When centering on the front hole, the second pedestal 32 is aligned with the first pedestal 31 in substantially the same direction without swinging. In the opposite case, it can be immediately inferred that the second pedestal 32 can be swung clockwise.

It is obvious that the angle adjusting means of the present invention can be applied to a crane, for example, a truck crane 40 shown in FIG.

As is well known, the crane 40 has wheels 41.
A vehicle body 42 is provided on the upper side, and a swivel table 43 is provided thereon. The swivel base 43 with a driver's seat has, for example, a three-stage boom 45, and the first pedestal 31 and the second pedestal 32 are fixed to the end boom directly or via the attachment 46, as described above. The drilling machine 20 is attached with the above structure.

The drilling operation is the same as that described above and in the first prior art, and therefore will not be described.

[0038]

As described above, according to the present invention, there is provided an advantage that the drillable range is widened and workability is improved.

[Brief description of the drawings]

FIG. 1 is an overall view of a backhoe according to the present invention.

FIG. 2 is a plan view showing a hole drilling state on a slope.

FIG. 3 is a schematic view showing a state in which a drilling machine is attached to an arm of a backhoe.

FIG. 4 is a detailed view of a main part thereof.

FIG. 5 is a plan view of the swing table.

FIG. 6 is a plan view of a first pedestal.

FIG. 7 is a bottom view of the second pedestal.

FIG. 8 is an overall view showing a state in which a drilling machine is attached to a truck crane.

[Explanation of reference numerals] 2 ... turning table, 3 ... boom, 5 ... boom operation cylinder,
Reference numeral 6: Arm 6, 7: Horizontal rotating shaft, 8: Arm operating cylinder, 9: Bracket, 10: First lifting cylinder, 1
DESCRIPTION OF SYMBOLS 1 ... swing base, 13 ... swing cylinder, 31 ... 1st seat, 32 ... 2nd seat.

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Masaji Yamaguchi 4-2-235 Kudankita, Chiyoda-ku, Tokyo Inside Light Industry Co., Ltd. (72) Inventor Tomoyuki Yamane 4- 2-35 Kudankita, Chiyoda-ku, Tokyo (56) References JP 2-57612 (JP, B2) (58) Fields investigated (Int. Cl. ⁶ , DB name) E21C 11/00 E02D 17/18 E02D 17/20 103 E02D 17/20 106 E21B 7/02

Claims (2)

(57) [Claims] A first arm which is connected to a bracket on an end arm of the backhoe so as to be rotatable around a horizontal axis, and the other end of a first elevating cylinder having one end connected to the arm; (1) Lifting cylinder The bracket is mounted on the bracket so as to be able to turn freely by extension and contraction of the cylinder. The first pedestal is fixed to the bracket, and the second pedestal is detachably provided on the first pedestal. A oscillating table having a center is provided, and the oscillating table is provided by a oscillating cylinder so as to be freely oscillated with a rotation angle of less than 360 degrees. Attachment is made with a rotation center in a direction perpendicular to the drilling machine. The rear end side of the drilling machine and the oscillating table are connected by a second lifting cylinder, and the drilling machine is lowered by expansion and contraction of the second lifting cylinder. Mount freely Further, a bolt fastening hole is formed in each of the first pedestal and the second pedestal along a circumference around an axis intersecting the first pedestal, and a circumferential position of the second pedestal with respect to the first pedestal is determined. A slope drilling device wherein the second pedestal is bolted to the first pedestal as selectable. 2. A crane comprising: a swivel base capable of swiveling about a vertical axis with respect to the ground; and a boom provided to extend and retract with respect to the swivel base. First through
A pedestal is fixed, a second pedestal is detachably provided on the first pedestal, a oscillating base is provided with a swing center with respect to the second pedestal, and the oscillating base is 360 The drilling machine is provided with a rotation angle of less than degrees, and a drilling machine is mounted on the tip side of the swinging table with a rotation center in a direction orthogonal to the axial direction, and the rear end side of the drilling machine and the swinging table are mounted. Is connected by a lifting cylinder, and the drilling machine is mounted to be able to lift freely by expansion and contraction of the lifting cylinder, and further along a circumference centered on an axis intersecting with the first pedestal. A bolt fastening hole is formed in each of the first pedestal and the second pedestal, the circumferential position of the second pedestal with respect to the first pedestal can be selected, and the second pedestal is bolted to the first pedestal. Surface drilling equipment.