JP4398910B2 - Drilling device - Google Patents

Description

  The present invention relates to a drilling device for drilling in a slope while being suspended by a crane or the like.

  Conventionally, a slope protection work such as a frame work has been carried out for a steep slope and a soil surface having an unfavorable soil quality. In the frame work, the slope is pressed by a concrete frame such as a square or triangle. In some cases, a reinforcing material (bolt) is placed in a predetermined portion of the concrete framework. In this case, first, a placement hole for placing the reinforcing material is formed in a predetermined portion, and after inserting the reinforcing material into the placement hole, grout or the like is injected and fixed. As a result, the natural ground and the slope are integrated.

  When such a frame work or the like is performed, since the construction site is on the slope, it is difficult to perform a drilling operation by directly installing a drilling device for drilling a placement hole on the slope. Therefore, conventionally, a drilling operation is performed in a state where the drilling device is suspended by a crane or the like. As a perforation apparatus used in the suspended state, there are those described in Patent Documents 1 to 4.

  In Patent Document 1, “a guide cell in which a rock drill is movably moved back and forth, a main body that holds the guide cell so as to be movable left and right and up and down, and a pair of front and rear that move the guide cell parallel to the left and right. A slope drilling device including a slide cylinder, a frame lift cylinder that moves up and down, and a mounting lift cylinder that tilts forward and downward is described.

  Patent Document 2 states that “a hanging part composed of two wire ropes at the front part and one wire rope whose length can be adjusted, a machine base suspended from the suspension part, and a longitudinal length of the machine base. A guide cell provided along the direction, a drifter provided in the guide cell so as to freely move back and forth, a drilling rod attached to the drifter, and an overhang length provided on both sides of the front part of the machine base A drilling device including a pair of adjustable steadying members ”is described.

  Patent Document 3 states that “a guide cell that is supported at a desired angle by a suspension device with the front end facing the drilled slope, and a bed plate that is movably attached along the axial direction of the guide cell. A driving device that moves the bed plate back and forth along the guide cell, a pneumatic rock drill body or down-the-hole drill that can be selectively attached to the bed plate, and a drilling method disposed at the front end of the guide cell A slope drilling device including a foot pad pressed against a surface and outriggers disposed on both right and left sides of the front end portion of the guide cell is described.

  Patent Document 4 states that “a frame, a guide cell provided on the frame, a drifter that is movable along the guide cell, and a pair of left and right outriggers that are provided at the front of the frame and can be moved forward and backward. A suspension wire for the left and right front portions of the frame, a suspension wire for the rear portion of the guide cell or the frame, and a means for adjusting the suspension wire for the rear portion. The slope drilling apparatus "in which the length is adjusted by the adjusting means is described.

JP-A-9-273376 JP-A-9-125860 Japanese Patent Laid-Open No. 9-125861 JP-A-10-72992

However, the above conventional techniques have the following problems.
(1) In the “slope drilling device” disclosed in Patent Document 1, a pair of front and rear slide cylinders that move the guide cell parallel to the left and right, a frame lift cylinder that moves the guide cell up and down, and a mounting lift that tilts forward and downward A cylinder, for easily adjusting the drilling position and the drilling angle with respect to the slope, but with a number of cylinders etc. for adjusting the drilling position and the drilling angle, the structure is It became complicated and heavy. For this reason, it was necessary to use a crane having a large weight capable of being lifted as a crane for lifting the slope drilling device, and there was a problem that the cost for the work was high. In the slope drilling device of Patent Document 1, the entire length in the front-rear direction of the main body (frame) is formed short in order to reduce the weight increased by a large number of cylinders or the like. As a result of the movement of the rock drill (drifter), the entire device is tilted, and the drilling rod is bent, resulting in a lack of accuracy.
(2) In Patent Documents 1 to 4, the main unit is not pressed against the slope, but only the outriggers arranged on both sides of the front end are grounded to the slope to support the entire apparatus. When the other outrigger is extended or retracted to adjust the movement, the entire device swings and is unstable. In fact, the operator must stabilize the device by pulling the device from the left and right with a rope or the like, and the workability is lacking. It had the problem that.
(3) In order to press the entire device against the slope, it is conceivable to operate the crane so that the suspended portion is close to the slope, but the crane is moved horizontally, and the right and left tilt of the device is The crane had to be moved so that it did not occur, and the operation of such a crane required considerable skill and was unrealistic.

  The present invention solves the above-mentioned conventional problems, and the entire device can be pressed against the slope by sliding the guide cell forward, and it is fixed and stabilized at a predetermined angle with respect to the slope only by pressing. An object of the present invention is to provide a drilling apparatus that is capable of performing drilling work accurately and quickly with a small number of workers and that is excellent in stability and workability.

In order to solve the above problems, a perforation apparatus of the present invention has the following configuration.
A drilling device according to claim 1 of the present invention is a drilling device for drilling on a slope in a state of being suspended by a crane , and (a) a base frame; (b) freely movable forward and backward in the base frame. A guide cell disposed in the guide cell, (c) a drifter disposed in the guide cell so as to be movable back and forth, and (d) an insertion opening formed in a substantially central portion of the main body through which the drilling rod of the drifter is inserted. A plurality of abutting portions arranged around the insertion opening portion of the front surface portion of the main body and each front end surface being arranged on the same plane orthogonal to the length direction of the guide cell, A normal surface pressing portion disposed at a front end of the guide cell; and (e) sliding the guide cell forward to move the base frame in a direction away from the normal surface, thereby One gas pressing the surface pressing part against the slope And an idel advance / retreat drive unit .

This configuration has the following effects.
(1) First, one end of the wire is connected directly or via a winch or the like to a hook such as a crane, and the other end of the wire is connected to the front and back of the base frame. Next, the drilling device is lifted by operating a crane or a winch and moved so as to be located in front of a sloped drilling place (such as a crossing portion of a concrete framework). Next, the slope pressing part is brought close to the slope so that the tip of the drilling rod and the part to be drilled coincide with each other, and the contact part is brought into contact with the periphery of the drilled part. Next, the guide cell advance / retreat drive unit is driven to slide the guide cell forward. Thereby, since the base frame moves in a direction away from the slope, the slope pressing portion is pressed against the slope. In this state, it is possible to drive the drifter and advance the hole while striking or rotating the drilling rod to form a hole for reinforcing material.
(2) A slope pressing portion (slope pressing device) is a main body formed of a plate or a frame, an insertion opening formed in a substantially central portion of the main body and through which a drilling rod of a drifter is inserted, and a front portion of the main body A plurality of abutment portions disposed on the same plane perpendicular to the length direction of the guide cell, and arranged at the front end portion of the guide cell of the perforation apparatus. by being set, since the perforations in the state pressed against the slopes of the slopes pressing portion, without or swung or inclined drilling device in the reaction force received from the ground or the like for perforation, the posture at the time of drilling It can be prevented from becoming unstable.
(3) Because the guide cell is slid forward and the slope pressing part is pressed against the slope, the guide cell can be pushed to the slope by increasing the sliding distance of the guide cell, for example, even when the ground to be drilled is hard The pressing force can be easily changed according to the hardness of the ground.
(4) Since a plurality of abutting portions are disposed on the front surface portion of the slope pressing portion, and each abutting portion advances and retracts together with the slope pressing portion, it is easy only by driving the guide cell advance / retreat driving portion. It is possible to fix the drilling device to the slope with a simple operation and to stabilize in this state.
(5) Since the guide cell advancing / retreating drive unit 1 can press against the slope and set the angle with respect to the slope of the drilling device, the weight of the drilling device can be reduced, and a crane for lifting the drilling device, etc. As a result, a relatively small weight that can be lifted can be used, so that workability can be improved and the cost for work can be reduced.
(6) The punching device can be installed so that the guide cell is at an angle orthogonal to the slope only by pressing the slope pressing part against the slope and bringing the abutment portions into contact with the slope. Therefore, complicated angle adjustment or the like is not necessary.

  Here, the guide cell advance / retreat drive unit has a cylinder such as a double-acting hydraulic cylinder or an air cylinder, and the tip of the piston rod of the cylinder arranged in parallel with the guide cell is fixed to the guide cell by a shaft. Or having a motor such as a hydraulic motor or an air motor, winding a chain between a pair of sprockets, connecting a predetermined part of the chain to a guide cell, and rotating the chain by the motor, or For example, a screw that advances and retracts the guide cell using a feed screw or a rack and pinion that uses the motor as a driving force is used. A cylinder such as a hydraulic cylinder or an air cylinder may be used as the chain driving means.

The slope pressing section (slope pressing apparatus) is a slope pressing section (slope pressing apparatus) disposed at the front end of the guide cell of the perforation apparatus, and includes a main body composed of a plate body and a frame body, The contact portion is provided with an insertion opening portion formed in a substantially central portion of the body and through which the drilling rod of the drifter is inserted, and a plurality of contact portions disposed around the insertion opening portion of the front surface portion of the main body. Since the drilling is performed with the surface pressed against the slope, the drilling device does not tilt or swing due to the reaction force received from the ground to be drilled, and the posture can be prevented from becoming unstable during drilling. In addition, a plurality of abutting portions are arranged on the front surface portion, and the main body and each abutting portion advance and retract together, so that the drilling device can be set to the slope with a simple operation and accurately by simply moving the guide cell back and forth. It can be fixed to the surface and stabilized in that state.
As the guide cell, steel materials such as I-shaped steel, H-shaped steel, and groove-shaped steel are used, and those having at least a rail portion that slidably holds the drifter are used. Further, the guide cell is preferably disposed so as to be freely advanced and retracted with respect to the base frame by the above-described guide cell advance / retreat drive unit, but may be fixed to or integrally formed with the base frame by welding or the like. When the guide cell is fixed to or integrally formed with the base frame, after positioning the drilling device with respect to the slope, the crane is operated to move the entire drilling device toward the slope, thereby pushing the slope Can be pressed against the slope. The base frame is formed by welding a steel material such as a square steel pipe into a rectangular frame or the like by welding. Legs for grounding may be formed on the front and rear portions of the base frame, the lower portions of both side portions, and the like. Note that the guide cell is slidably disposed or directly fixed to the upper surface of the base frame such as the horizontal frame (i.e., the upper part of the base frame) via the guide unit or the like. It may be slidably arranged or fixed on the lower surface of the base frame or the like (that is, the lower part of the base frame). The drifter may be slidably disposed along the upper surface of the guide cell, or may be disposed along the lower surface or the side surface.
A plate body such as a metal plate having a predetermined shape, a frame body, or the like is used as the main body of the slope pressing portion. Further, as the contact portion, an elastic body having a rubber material or a spring material or a shock absorber, a metal material such as plate-like or massive aluminum, or wood is used. As a result, even if the slope has an uneven surface, the slope pressing part can be surely brought into contact, and the slope pressing part does not slide down with respect to the slope, and the punching device is pushed to the slope by a predetermined angle. Can be fixed securely. In particular, it is preferable to use a hard rubber material, metal material, or wood as the contact portion because the stability when pressed against the slope is increased. Further, it is preferable that the abutting portion is detachably attached to the slope pressing portion because the worn abutting portion can be easily replaced. Furthermore, as the shape of the contact surface of the contact portion, a polygonal shape such as a rectangular shape, a circular shape, an elliptical shape, or the like is used. By making the shape of the abutting surface a rectangular or elliptical shape that is long in the horizontal direction, the horizontal direction (left-right direction) tilt and shaking of the perforating apparatus can be reduced, and stability can be enhanced. Also, the stability of the perforating apparatus can be improved by arranging the contact portions symmetrically on both sides and the upper and lower portions of the insertion opening and taking a sufficient distance between the contact portions.

  Here, by disposing the abutment portions at least on both sides in the horizontal direction of the insertion opening, the guide cells are at least in the left-right direction by merely bringing the pair of abutment portions into contact with the slope. The perforation apparatus can be fixed so as to be orthogonal to the horizontal axis, and can be stabilized in that state.

The invention according to claim 2 of the present invention is the perforating apparatus according to claim 1 , wherein the slope pressing portion is disposed symmetrically on both sides of the insertion opening as the contact portion. Further, at least a pair of side contact portions and a lower contact portion disposed below the insertion opening are provided.

With this configuration, in addition to the operation of the first aspect , the following operation is provided.
(1) First, the pair of side contact portions are brought into contact with both sides of the drilling portion, and the slope is set so that the drilling device is inclined slightly upward from the direction orthogonal to the slope. Position with respect to. Next, the slope pressing portion can be easily pressed by sliding the guide cell forward and bringing the lower contact portion into contact with the lower side of the perforated portion.
(2) When the guide cell is slid forward and pressed, the drilling device is made to be perpendicular to the slope only by sliding the guide cell until the lower contact part comes into contact with the lower side of the drilling part. Therefore, the operator can easily visually determine the sliding distance of the guide cell so that the drilling device is orthogonal to the slope.
(3) By pressing the pair of side abutting portions against both sides of the drilling portion, it is possible to press the left and right evenly, and the tilting and shaking of the drilling device in the left-right direction can be reliably prevented during drilling.

Invention of Claim 3 of this invention is a piercing | piercing apparatus of Claim 1 or 2 , Comprising: The said slope pressing part was equipped with a pair of concrete frame latching | locking part arrange | positioned in the upper part. It has a configuration.

With this configuration, in addition to the operation of the first or second aspect , the following operation is provided.
(1) When the guide cell is slid forward and pressed, by locking the concrete frame locking part to the upper part of the horizontal frame of the concrete frame, the tip end side of the guide cell is prevented from sliding down against the slope. Can be prevented, and the work can be carried out extremely safely.

  Here, as the concrete frame locking portion, one having a claw portion, a hook-like portion or the like protruding in front of the slope pressing portion is used. In addition, by moving the abutment part that abuts on the concrete framework at the tip of the claw part or hook-like part up and down by a screw mechanism or a hydraulic cylinder, etc., positioning of the drilling position before locking and after locking Fine adjustments can be made easily.

A fourth aspect of the present invention is the drilling device according to any one of the first to third aspects, wherein one end is connected to a crane hook and the other end is in front of the base frame. A front wire and a rear wire connected to the front portion and the rear portion, and wire adjusting means for adjusting a length of one of the front wire and the rear wire.

With this configuration, in addition to the operation of any one of claims 1 to 3 , the following operation is provided.
(1) Adjusting the posture of the drilling device during positioning by adjusting the length of the front wire or the rear wire with the wire adjusting means when the drilling device is lifted and positioned in front of the drilling place on the slope. Can do.
(2) When the guide cell is slid forward and pressed, the length of the front wire or the rear wire is adjusted in accordance with the change in the inclination angle of the punching device accompanying the pressing, so that the punching device has a predetermined angle. It can be adjusted to be (an angle perpendicular to the slope, etc.).

  As the wire adjusting means, a winch, a hydraulic cylinder, an air cylinder or the like can be used. The winch can be placed in the middle of the front or rear wire. That is, either the front wire or the rear wire is connected to a hook such as a crane via the winch, and the other is directly connected to the hook. Further, the winch and the cylinder can be disposed at a predetermined portion of the base frame. In this case, a wire pulley is disposed at the front or rear of the base frame, the front wire or the rear wire is wound around the wire pulley, and the end side is wound by a winch or pulled by expansion and contraction of the cylinder. Adjust the length. If the winch is placed in the middle of the wire, the winch may wobble during winding, and the wire may be wound in a distorted state. However, by placing it on the base frame, the wire can be taken up in an orderly manner. In addition, the feeding operation can be performed smoothly.

The invention according to claim 5 of the present invention is the punching device according to any one of claims 1 to 4 , comprising an operation portion disposed on a front side portion of the base frame, The operation unit includes at least an operation panel for operating the guide cell advance / retreat drive unit and the drifter, a moving drive unit for moving the operation panel in the advance / retreat direction of the guide cell, and / or an inclination of the operation panel. And a tilting drive unit for adjusting the angle.

With this configuration, in addition to the operation of any one of claims 1 to 4 , the following operation is provided.
(1) By providing an operation part in the front side part of a base frame, the operator on the slope can operate a drifter, confirming a drilling location visually.
(2) The guide cell is slid forward, and even if the operation unit is separated from the slope with the base frame, the moving drive unit or the tilting drive unit is driven to bring the operation panel closer to or inclined to the slope. As a result, the operation panel can be adjusted to a position where the operator can easily operate, and can be easily operated.

  Here, as the drive unit for movement and the drive unit for tilting, the same ones as the guide cell advance / retreat drive unit described above are used.

The invention according to claim 6 of the present invention is the perforating apparatus according to any one of claims 1 to 5 , wherein the slope pressing portion is recessed in a front portion of the slope pressing portion. A dust collecting recess in which the insertion opening is formed in the inner wall, a dust collecting hole formed in the inner wall of the dust collecting recess, and a dust collecting whose one end is connected to the dust collecting hole. It has the structure provided with the pipe | tube and the dust collection part connected to the other end part of the said dust collection pipe | tube.

With this configuration, in addition to the operation of any one of claims 1 to 5 , the following operation is provided.
(1) Since the dust collecting section is provided, it is possible to prevent the dust generated during the drilling of the drifter from being smoothly collected and scattered to the work site.
(2) Since the concave part for dust collection is formed in the slope pressing part, and the dust collecting pipe is connected to the concave part for dust collection, the generated dust can be reliably sucked and collected without being scattered around. .

  Here, a bag filter, a cyclone, an electric dust collector or the like is used as the dust collecting unit.

As described above, according to the present invention, the following advantageous effects can be obtained.
According to the invention of claim 1,
(1) Since drilling is performed with the slope pressing part pressed against the slope, the drilling device does not tilt or swing due to the reaction force received from the ground to be drilled, and the posture is unstable during drilling Therefore, it is possible to provide a drilling device excellent in workability and stability that can be performed with a small number of workers.
(2) Since the guide cell is slid forward and the slope pressing part is pressed against the slope, the guide cell can be pushed with a strong pressing force even if the ground to be drilled is hard, for example, by increasing the sliding distance of the guide cell. It is possible to provide a punching device that can easily change the pressing force according to the hardness of the ground.
(3) Since a plurality of abutting portions are arranged on the front surface portion of the slope pressing portion, and each abutting portion advances and retracts together with the slope pressing portion, it is easy only by driving the guide cell advance / retreat driving portion. It is possible to provide a drilling device excellent in accuracy, operability, and stability, which can be fixed with respect to a slope and accurately stabilized by simple operation.
(4) Since the guide cell advance / retreat drive unit 1 can press the slope and set the angle with respect to the slope of the drilling device, the weight of the drilling device can be reduced and the workability and labor saving are excellent. Therefore, it is possible to provide a perforating apparatus that can reduce the cost of the perforation.
(5) It is possible to install the drilling device so that the guide cell is at an angle orthogonal to the slope by simply pressing the slope pressing portion against the slope and bringing the multiple abutments into contact with the slope. Therefore, it is possible to provide a drilling device excellent in workability and stability that does not require complicated angle adjustment or the like.

According to invention of Claim 2 , in addition to the effect of Claim 1 ,
(1) Since the drilling device can be fixed perpendicularly to the slope only by sliding the guide cell until the lower contact portion comes into contact with the lower side of the drilling site, the operator can slide the guide cell. It is possible to provide a drilling device excellent in operability that can easily determine the moving distance visually.
(2) Providing a drilling device with excellent workability and stability that can reliably prevent tilting and shaking of the drilling device in the horizontal direction during drilling, etc., by pressing a pair of side contact portions against both sides of the drilling location. can do.

According to invention of Claim 3 , in addition to the effect of Claim 1 or 2 ,
(1) When the guide cell is slid forward and pressed, by locking the concrete frame locking part to the upper part of the horizontal frame of the concrete frame, the tip end side of the guide cell is prevented from sliding down against the slope. Therefore, it is possible to provide a drilling device that can be prevented and can be operated extremely safely and is excellent in workability and safety.

According to invention of Claim 4 , in addition to the effect of any one of Claims 1 to 3 ,
(1) Adjusting the posture of the drilling device during positioning by adjusting the length of the front wire or the rear wire with the wire adjusting means when the drilling device is lifted and positioned in front of the drilling place on the slope. Therefore, it is possible to provide a drilling device that can be positioned easily.
(2) When the guide cell is slid forward and pressed, the front wire or the rear wire is wound up in accordance with the change in the inclination angle of the drilling device accompanying the pressing so that the punching device has a predetermined angle. It is possible to provide a perforating apparatus that can be adjusted to the above.

According to the invention of claim 5 , in addition to the effect of any one of claims 1 to 4 ,
(1) To provide a drilling device excellent in operability by providing an operation unit on the front side portion of the base frame so that an operator on the slope can operate the drifter while visually checking the drilling site. Can do.
(2) A piercing device with excellent operability that can adjust the operation panel to a position that is easy for the operator to operate by driving the moving drive unit or the tilting drive unit to make the operation panel approach or tilt the slope. Can be provided.

According to invention of Claim 6 , in addition to the effect of any one of Claims 1 to 5 ,
(1) Equipped with a dust collecting part, which can prevent dust generated during drilling of the drifter from being collected smoothly and scattered on the work site, making it difficult for the worker to visually check the work status. It is possible to provide a perforating apparatus with excellent workability without harming the health of the patient.
(2) Since the concave part for dust collection is formed in the slope pressing part, and the dust collecting pipe is connected to the concave part for dust collection, the generated dust can be reliably sucked and collected without being scattered around. It is possible to provide a perforating apparatus having excellent dust collection performance.

Hereinafter, an embodiment of the present invention will be described with reference to FIGS.
(Embodiment 1)
FIG. 1A is a plan view of the perforating apparatus in the first embodiment, FIG. 1B is a side view of the perforating apparatus in the first embodiment, and FIG. 2 is a perforating apparatus in the first embodiment. FIG. 3 is a front view of the apparatus, and FIG. 3 is a cross-sectional view taken along line AA in FIG.
In the figure, 1 is a punching device according to the first embodiment, 2 is a base frame, 3a is a pair of left and right wire locking portions disposed at the front of the base frame 2, and 3b is disposed at the rear of the base frame 2. A pair of left and right wire pulleys 3b 'are auxiliary wire pulleys 3b' arranged at the rear of the base frame 2 and below the wire pulleys 3b. A fixed winch (wire adjusting means), 4 is a guide cell advancing / retreating cylinder (guide cell advancing / retreating drive unit), and 5 is a guide cell fixed to substantially the upper center of a pair of front and rear horizontal portions 2a, 2b of the base frame 2. The piston rod of the advance / retreat cylinder 4, 6 is a guide cell fixing portion pivotally attached to the tip of the piston rod 5, and 7 is a guide cell advance / retreat cylinder in which the guide cell fixing portion 6 is fixed to a predetermined portion on the lower surface. Guide cells 8a and 8b are slidably disposed on the upper portion of the guide cell. Guide portions 8a and 8b are fixed to the guide cell advance / retreat cylinder 4 and guide the guide cell 7 in the forward / backward direction. A drifter 10 is provided at a lower portion of the drifter 9 and has a guide engagement portion 10 a that engages with the guide cell 7. A drifter 11 is disposed at a lower portion near the front end of the guide cell 7. An advancing / retreating drive unit, 12 is a main driving sprocket fixed to the output shaft of the drifter advancing / retreating driving unit 11, 13a and 13b are driven sprockets rotatably mounted on front and rear end portions of the guide cell 7, and 14 is a main driving sprocket 12 and A chain 16 wound around the driven sprockets 13 a and 13 b is fixed to the chain fixing portion 15 of the drifter mounting portion 10, and 16 is for preventing the chain 14 from being bent. Deflection preventing sprocket, 17 is a drilling rod connected to the output shaft of the drifter 9, 18 is a bit disposed at the tip of the drilling rod 17, and 19 is one side near the front end of the base frame 2. It is the operation part attachment part arrange | positioned by.

  Reference numeral 20 denotes a slope pressing portion formed in a substantially inverted triangular shape, a substantially Y shape, or the like, and disposed substantially orthogonally to the front end portion of the guide cell 7 via a fixing portion 20a, and 22 is an upper portion of the slope pressing portion 20. Insertion openings 23a and 23b, which are formed by cutting out substantially from the center to the end of the drilling rod 17, 23a and 23b are disposed on both sides of the insertion opening 22 of the front surface portion 21 of the slope pressing portion. Side contact portions (contact portions), 24 are lower contact portions (contact portions) disposed below the insertion opening 22 of the front surface portion 21, and 25a and 25b are located above the slope pressing portion 20. A pair of disposed concrete frame locking portions, 26 is a support portion erected on the upper surface of the slope pressing portion 20, and 26a is a shaft that is fixed so as to be able to move forward and backward perpendicularly to the upper end portion of the support portion 26. The holding part 27 is a positioning shaft, and a male screw part is formed on the surface. Is screwed into the female screw portion formed in the shaft holding section 26a (not shown). Thereby, by rotating the rotation lever 27a of the upper end part of the positioning shaft 27, the concrete frame contact part 27b of a lower end part can be moved and positioned up and down. In addition, since the concrete frame contact part 27b is being fixed to the lower end part of the shaft 27 via the universal joint, it contacts reliably according to a concrete frame. 28 is a pair of drilling rod holders which are disposed at the rear of the slope pressing unit 20 and hold the drilling rod 17 from both sides so as to be movable forward and backward, and 29 is a holding unit drive cylinder which drives the drilling rod holding unit 28 It is.

Here, the drifter advance / retreat drive unit 11 includes an air motor and a speed reducer (not shown), and rotates the main sprocket 12 by reducing the rotational force of the air motor by the speed reducer. The air motor is driven by compressed air supplied from a compressor (not shown).
The guide cell advance / retreat cylinder 4 and the holding portion drive cylinder 29 are double-acting hydraulic cylinders and are driven by pressure oil supplied from a hydraulic pump (not shown). The hydraulic pump is driven by compressed air from the above-described compressor.
The drifter 9 is an air type driven by compressed air from the above-described compressor, and can perform striking, rotating, blowing, and the like. The hitting and rotating means that the drilling rod 17 is vibrated in the longitudinal direction and rotated in the axial direction. Further, the drilling rod 17 is formed of a tubular member, and by blowing (blowing) compressed air from the injection hole of the bit 18 through the drilling rod 17 to the drilled portion, the shavings can be blown away. Each of the drifters 9 has a compressed air inlet for blow, rotation, and blow. Each of the compressed air inlets is provided with an opening / closing valve disposed in an operation section described later to send and stop the compressed air. The operation can be switched as appropriate.
The guide cell 7 is fixed to each other through spacers at both ends in a state where a pair of channel steels are back-to-back at a predetermined interval, and a chain 14 is disposed in a gap formed by the spacer inside. . Lubricating oil is supplied to the sliding surface of the guide cell 7 above the guide cell advance / retreat cylinder 4 or a plurality of rollers are provided to smoothly advance and retract the guide cell 7. In Embodiment 1, the chain 14 and sprockets 13a and 13b constituting the guide cell advancing / retreating drive unit are formed by forming a gap inside the guide cell 7, but the chain 14 and the like are arranged. The installation position is not limited to the inside of the guide cell 7 and may be disposed on the side surface of the guide cell 7 or the like.
The slope pressing portion 20 is formed of a metal plate or a metal frame having a predetermined shape such as a substantially inverted triangular shape or a substantially Y shape. The side contact portions 23a and 23b and the lower contact portion 24 are formed of an elastic body such as a hard rubber body, and are fixed to the front surface portion 21 via a support body or the like. The front end surfaces of the side contact portions 23 a and 23 b and the lower contact portion 24 are formed on the same plane orthogonal to the guide cell 7 and the drilling rod 17. Accordingly, the guide device 7 and the drilling rod 17 are inclined at an angle at which the guide cell 7 and the drilling rod 17 are orthogonal to the slope only by pressing the contact portions 23a, 23b, and 24 of the slope pressing portion 20 against the slope. Can be fixed.

With respect to the perforating apparatus 1 according to the first embodiment configured as described above, its usage and operation will be described below with reference to FIGS.
4 is a side view of the main part showing a state in which the perforating apparatus is lifted, FIG. 5 is a side view of the main part showing a state in which the perforating apparatus is brought into contact with the slope, and FIG. FIG. 7 is a main part side view showing a state in which the slope pressing portion is pressed against the slope.
In the figure, 30 is a winding wire wound by the winch 3c, 30a is a front wire having one end connected to a hook F described later and the other end connected to a wire locking portion 3a, and 30b has one end hook H And the other end of the wire is wound around the wire pulley 3b and the auxiliary wire pulley 3b 'and connected to the take-up wire 30 through a shackle or the like. The front wire 30a and the rear wire A pair of left and right 30b are provided. X is a slope, Y is a concrete frame formed on the slope X, Y1 is a vertical frame of the concrete frame Y, Y2 is a horizontal frame of the concrete frame Y, and F is a hook of a crane (not shown).
In the first embodiment, the rear wire 30b is wound up by the winch 3c via the winding wire 30, but the present invention is not limited to this, and the front wire 30a is wound up. It may be. Since the center of gravity of the punching device 1 is located on the front side, if the rear wire 30b is wound up, the load applied to the winch 3c is reduced, and a small winch 3c can be used, resulting in freedom of design and cost savings. Excellent. When the rear wire 30b is wound, a pulley is connected to the end of the take-up wire 30, and the end of the rear wire 30 is wound around the pulley and the end is fixed to the rear side of the base frame 2. Good. Thereby, the load concerning winch 3c can be made still smaller.

First, as shown in FIG. 4, one end portions of the left and right front wires 30a and the left and right rear wires 30b are hooked to the hook F, and the other end portion of the front wire 30a is connected to the wire connecting portion 3a via a shackle or the like. The rear wire 30 b is wound around the wire pulley 3 b and the auxiliary wire pulley 3 b ′, and the other end is connected to the winding wire 30. Next, as shown in FIG. 5, the drilling device 1 is lifted by operating the crane, moved to the drilling location on the slope X, and the slope pressing unit 20 is positioned.
The positioning of the slope pressing portion 20 is first performed by operating the crane and winch 3c so that the slope pressing portion 20 is positioned in front of the intersection of the vertical frame Y1 and the horizontal frame Y2 of the concrete frame Y. Move.
Next, the slope pressing portion 20 is brought close to the concrete frame Y so that the bit 18 at the tip of the drilling rod 17 is positioned at a predetermined portion (for example, the center) of the intersecting portion of the vertical frame Y1 and the horizontal frame Y2. Is inserted into a hole (not shown) formed in advance at the intersection of the vertical frame Y1 and the horizontal frame Y2 (a circular hole formed by a mold or the like when the concrete frame Y is placed), and side contact The parts 23a and 23b are guided and brought into contact with predetermined parts. Next, the rotation lever 27a of the concrete frame locking portions 25a and 25b is operated, the concrete frame contact portion 27b is adjusted and fixed to the upper portion of the horizontal frame Y2, and positioning is performed. In the state shown in FIG. 5, the punching device 1 is maintained at an angle in which the rear side is slightly inclined upward from the angle orthogonal to the slope X. This is because when the guide cell 7 is extended and pressed against the slope X, the rear side tilts downward (lowers). By tilting upward in advance, the punching device 1 is pressed against the slope X after pressing. This is to make them orthogonal.

Next, as shown in FIG. 6, the guide cell advance / retreat cylinder 4 is driven to slide the guide cell 7 forward. In addition, the sliding distance of the guide cell 7 is appropriately set according to the hardness of the ground of the slope X to be drilled. For example, if the ground is hard, the sliding distance of the guide cell 7 is increased to increase the pressing force so that the perforating apparatus 1 does not tilt or swing due to the reaction force received from the ground.
When the guide cell 7 is slid forward, the base frame 2 moves in a direction away from the slope X, the slope pressing part 20 is pressed against the slope X, and the drilling device 1 is slightly lowered on the rear side. Then, the lower contact portion 24 is in contact with the concrete framework Y, and the drilling rod 17 is maintained at an angle orthogonal to the slope X. At this time, the operator can easily determine the sliding distance of the guide cell 7 visually by operating the guide cell 7 until the lower contact portion 24 contacts. As shown in FIG. 7, the side contact portions 23a and 23b of the slope pressing portion 20 are pressed against the horizontal frame Y2, and the lower contact portion 24 is pressed against the vertical frame Y1. Since the concrete frame locking portions 25a and 25b are locked to the upper portion of the horizontal frame Y2, the posture is stably maintained without the slope pressing portion 20 slipping down or the drilling device 1 tilting left and right. The
In this state, the drifter 9 and the above-described drifter advance / retreat drive unit 11 are driven, and the drilling rod 17 and the bit 18 at the tip are advanced while being struck or rotated, so that the intersecting portion of the concrete frame Y is drilled.

Next, another example of the concrete framework locking portion will be described with reference to FIG.
FIG. 8 is a main part front view showing another example of the concrete frame locking portion.
In the figure, 31a and 31b are concrete framework locking parts, 32 is a support part standing on the upper surface of the slope pressing part 20, 32a is a link part pivotally attached to the upper end part of the support part 32 at a substantially central part, 33 is a cylinder for a locking part such as a hydraulic drive pivotally attached to the back side of the lower end of the support part 32, 33a is a piston of the cylinder 33 for a locking part pivotally attached to the rear end part of the link part 32a, 34 is A shaft 34a fixed orthogonally to the front end of the link portion 32a is a concrete framework contact portion fixed to the lower end of the shaft 34 via a universal joint.
When the concrete frame locking portions 32a and 32b are locked to the horizontal frame Y2 of the concrete frame Y, etc., the locking portion cylinder 33 is expanded and contracted by an operation portion described later, and the link portion 32a is rotated, thereby providing concrete. The frame abutting portion 34a can be adjusted so as to move in the vertical direction and abut on the upper portion of the horizontal frame Y2. Thereby, the operator does not need to manually adjust the rotation lever or the like, and the workability is excellent. After the concrete frame abutting portion 34a is brought into contact with the horizontal frame Y2, the drilling device 1 is caused by its own weight or the like. Even if it is strongly pressed against Y2, it can be easily finely adjusted because it is driven by hydraulic pressure or the like.

Further, in the perforating apparatus 1 according to the first embodiment, the operation part can be attached to the operation part attachment part 19 disposed on one side part near the front end part of the base frame 2.
FIG. 9A is a front view of the punching device showing a state where the operation unit is attached, and FIG. 9B is a side view of a main part of the punching device showing a state where the operation unit is attached.
In the figure, 35 is an operation part, 36 is a support column part inserted in the operation part attachment part 19, and 37 is a moving cylinder (moving drive part) disposed in a tiltable manner at the upper end part of the support column part 36. , 38 is a cylinder fixing portion fixed to the lower end side of the support column portion 36, 39 is a tilting cylinder (tilting drive portion) whose lower end portion is pivotally attached to the cylinder fixing portion 38, and the upper end of the piston rod The portion is pivotally attached to the moving cylinder 37. Reference numeral 40 denotes an operation panel holding part disposed on the upper part of the moving cylinder 37 so as to be slidable in the longitudinal direction, and 40 a is provided on the lower surface of one end part of the operating panel holding part and protrudes from the tip of the piston rod of the moving cylinder 37. Piston rod fixing portion with a shaft attached thereto, 41 is a sliding guide portion that is fixed to the moving cylinder 37 and guides the sliding of the operation panel holding portion 40, and 42 is erected on one end of the operation panel holding portion 40. An operation panel support column part 43, an operation panel 43 attached to the tip of the operation panel support column part 42 so as to be rotatable in the horizontal direction, and an operation lever 44 disposed on the operation panel 43.

The moving cylinder 37 and the tilting cylinder 39 are double-acting hydraulic cylinders and are driven by pressure oil supplied from a hydraulic pump (not shown).
As described above, when the guide cell 7 is slid forward during the drilling operation, the moving cylinder 37 is driven to slide the operation panel holding unit 40 forward, and the operation panel 43 is brought closer to the slope X. Thus, an operator on the slope X can operate the operation panel 43, and the drilling device 1 can be operated while visually checking the drilling operation at a position close to the drilling location. Further, by driving the tilting cylinder 39 and tilting the operation panel 43 or rotating the operation panel 43 in the horizontal direction, the operation panel 43 can be adjusted to a position where the operator can easily operate.
The operation lever 44 of the operation panel 43 is used to drive the compressor, drive the air motor of the drifter advance / retreat drive unit 11, actuate the impact, rotation, blow, etc. of the drifter 9, drive the hydraulic pump, guide cylinder advance / retreat cylinder 4 and holding. The drive of the part drive cylinder 29, the drive of the locking part cylinder 33, and the drive of the winch 3c can be operated.

As described above, the perforation apparatus 1 according to the first embodiment is configured and thus has the following operation.
(1) First, the front wire 30a and the rear wire 30b are connected to the hook F, the base frame 2 and the winch 3c of the crane, and then the drilling device 1 is lifted by operating the crane and the winch 3c. The concrete frame Y is moved so as to be positioned in front of the intersection of the vertical frame Y1 and the horizontal frame Y2. Next, the slope pressing portion 20 is brought close to the slope so that the bit 18 at the tip of the drilling rod 17 and the approximate center of the intersecting portion coincide with each other, and the side contact portions 23a and 23b and the lower contact portion 24 is brought into contact with the periphery of the perforated portion. Next, the guide cell advance / retreat cylinder 4 is driven to slide the guide cell 7 forward. Thereby, since the base frame 2 moves in the direction away from the slope X, the slope pressing portion 20 is pressed against the slope X. In this state, the drifter 9 is driven, and the drilling rod 17 is advanced while being struck or rotated, so that the bit 18 can pierce the hole for reinforcing material.
(2) Since drilling is performed with the slope pressing portion 20 pressed against the slope X, the drilling device 1 does not tilt or swing due to the reaction force received from the ground to be drilled, and the posture during drilling is It can be prevented from becoming unstable.
(3) Since the guide cell 7 is slid forward and the slope pressing portion 20 is pressed against the slope, the guide cell 7 can be pressed strongly even if the ground to be drilled is hard, for example, by increasing the sliding distance of the guide cell 7 It is possible to respond with force, and the pressing force can be easily changed according to the hardness of the ground.
(4) Side contact portions 23 a and 23 b and a lower contact portion 24 are disposed on the front surface portion 21 of the slope pressing portion 20, and the contact portions 23 a, 23 b and 24 are integrated with the slope pressing portion 20. Therefore, the perforating apparatus 1 can be fixed to the slope by a simple operation only by driving the guide cell advance / retreat cylinder 4. Further, the front end surfaces of the side contact portions 23a and 23b and the lower contact portion 24 are formed on the same plane orthogonal to the guide cell 7 and the drilling rod 17, so By simply pressing the contact portions 23a, 23b, 24 against the slope, the drilling device 1 can be fixed and stabilized on the slope so that the drilling rod 17 has an angle perpendicular to the slope.
(5) Since the side contact portions 23a and 23b first contact with each other when the post-slope pressing portion 20 lifted by the crane is aligned with the drilled portion, the alignment is easy. By pressing the contact portions 23a and 23b against both sides of the drilling portion of the concrete frame Y, it is possible to press the left and right evenly, and the tilting and shaking of the drilling device 1 in the horizontal direction can be reliably prevented during drilling.
(6) When the guide cell 7 is slid forward and pressed, the concrete frame locking portions 25a, 25b or 32a, 32b are locked to the upper part of the horizontal frame Y2 of the concrete frame Y, thereby the guide cell 7 It is possible to prevent the tip side of the slide from slipping down with respect to the slope X, and the operation can be performed extremely safely.
(7) Since the winch 3c is provided, when the drilling device 1 is lifted and positioned in front of the drilling place on the slope X, the posture of the drilling device 1 at the time of positioning can be adjusted, and the guide cell 7 Can be adjusted so that the piercing device 1 is at an angle orthogonal to the slope X in accordance with the change in the inclination angle of the piercing device 1 accompanying the pressing. Further, since the winch 3c is disposed on the base frame 2, the winding wire 30 can be wound up in an orderly manner, and the winding and unwinding operations can be performed smoothly.
(8) By providing the operation part 35 in the front side part of the base frame 2, the operator on the slope X can operate the drifter 9, confirming a drilling location visually.
(9) The operation lever 44 of the operation panel 43 can be adjusted to a position where the operator can easily operate by driving the moving cylinder 37 or the tilting cylinder 39 to bring the operation panel 43 close to or inclined toward the slope X. Easy to operate.
(10) Since the guide cell advance / retreat cylinder 4 of 1 can be pressed against the slope X and the angle of the drilling device 1 with respect to the slope X can be set, the weight of the punching device 1 can be reduced and the punching device 1 can be reduced in weight. As a crane for lifting a crane, a crane having a relatively small weight that can be lifted can be used, so that workability can be improved and the cost for work can be reduced.

(Embodiment 2)
FIG. 10A is a front view of the slope pressing portion of the drilling device in the second embodiment, and FIG. 10B is a cross-sectional view taken along the line BB in FIG. 11 is a schematic configuration diagram of the dust collecting unit.
In the figure, 7 is a guide cell, 13a is a driven sprocket, 14 is a chain, 20a is a fixing portion, 25a and 25b are concrete framework locking portions, which are the same as those described in the first embodiment. Therefore, the same reference numerals are attached and the description is omitted. 51 is a punching device according to the second embodiment, 52 is a normal surface pressing portion disposed substantially orthogonal to the front end portion of the guide cell 7 via a fixing portion 20a, and 54 is a front surface portion 53 of the normal surface pressing portion 52. Inverted trapezoidal dust collecting recesses recessed in the substantially central portion, 55 is formed through the bottom surface of the dust collecting recess 54 and is inserted through a drilling rod (not shown), and 56a and 56b are front portions. A pair of side contact portions (contact portions) disposed on both sides of the dust collection recess 54 of 53, and an upper contact portion 57 disposed on the top of the dust collection recess 54 of the front surface portion 53. (Contact portion) 58 is a lower contact portion (contact portion) disposed in the lower portion of the dust collection recess 54 of the front surface portion 53, and 59 is a dust collection formed on the side surface of the dust collection recess 54. A hole portion 60 is a dust collecting pipe having one end connected to the dust collecting hole portion 59, and 61 is a bag filter (dust collecting portion). The other end portion of the dust collecting pipe 60 is connected to the lower hopper portion 61a, a discharge portion 61b is formed at the bottom of the hopper portion 61a, and a filter cloth (bug) 61c is disposed inside the bag filter 61. . 62 is an exhaust pipe whose one end is connected to the upper part of the dust collecting part 61, and 63 is a ventilation pipe whose other end is connected to the middle part.

The punching device 51 according to the second embodiment can collect dust generated during drilling by the drifter with the bag filter 61. Hereinafter, the dust collecting operation will be described with reference to FIGS. In the first embodiment, the drilling device 51 is positioned with respect to the slope, the slope pressing portion 52 is pressed against the slope and fixed, and then the drifter is driven to punch the drilled portion of the concrete framework. Since it is the same as what was demonstrated, description is abbreviate | omitted.
If the exhaust port of the driving air provided in the drifter and the inlet side of the ventilation pipe 63 are connected by a hose or the like and high-speed air is allowed to pass through the ventilation pipe 63, the inside of the ventilation pipe 63 becomes low pressure by Bernoulli's theorem. Thereby, a flow of air discharged from the dust collecting concave portion 54 of the slope pressing portion 52 through the dust collecting pipe 60 and the bag filter 61 and the exhaust pipe 62 to the outlet side of the ventilation pipe 63 is generated. As a result, the dust generated from the perforated holes is sucked into the bag filter 61 from the dust collecting recess 54 and separated from the clean air by the filter cloth 61c in the bag filter 61 or stored or discharged from the discharge unit 61b.
In the second embodiment, the exhaust air of the drifter is used to allow high-speed air to pass through the ventilation pipe 63. However, the present invention is not limited to this, and a separate compressor may be used. If the exhaust air of the drifter is used, a separate compressor or the like is not used, and normally the air exhausted as it is can be used, which is excellent in energy saving and cost saving. Moreover, although the bag filter 61 was used as a dust collection part, you may use a cyclone, an electric dust collector, etc. FIG. The bag filter 61 and other dust collecting portions may be attached to the base frame of the drilling device 51, may be similarly suspended by a crane or the like that suspends the drilling device 51, or may be installed on a flat ground place at the work site. Good. When attaching to a base frame, it is preferable to attach to the side part of the same side as the operation part demonstrated in Embodiment 1. FIG. If they are attached to different side parts, the weight of the operation part and the weight of the dust collection part will cause a load on the base frame, which may cause the members constituting the base frame to twist and hinder the advancement and retraction of the drifter and guide cell. It is not preferable.

As described above, since the perforation apparatus 51 in the second embodiment is configured, in addition to the functions of the first embodiment, the following functions are provided.
(1) Since the bag filter (dust collecting part) 61 is provided, the dust generated during drilling of the drifter is prevented from being smoothly collected and scattered to the work site, and it is difficult for the worker to visually check the work state. It is excellent in workability without becoming a problem or harming the health of workers.
(2) Since the dust collecting concave portion 54 is formed in the slope pressing portion 52 and the dust collecting pipe 60 is connected to the side surface of the dust collecting concave portion 54, the generated dust is reliably sucked without being scattered around. Can be collected. Further, since the side contact portions 56a and 56b and the upper contact portion 57 are disposed close to the periphery of the dust collecting recess 54, the generated dust can be prevented from leaking.
(3) Since the upper abutment portion 57 and the lower abutment portion 58 are disposed on the front surface portion 53 of the slope pressing portion 52, the piercing is performed at the time of drilling or the like by pressing the upper and lower portions of the slope surface on the front and rear sides. The apparatus 51 can be reliably prevented from tilting and shaking in the vertical direction, and has excellent stability.

  As described above, the present invention relates to a drilling device for drilling on a slope in a state of being suspended by a crane or the like. In particular, according to the present invention, the entire device is legalized by sliding a guide cell forward. It can be pressed against the surface, and can be fixed and stabilized at a predetermined angle with respect to the slope only by pressing, and excavation can be performed accurately and quickly with a small number of workers. A drilling device can be provided.

(A) Plan view of the punching device in the first embodiment (b) Side view of the punching device in the first embodiment Front view of perforating apparatus according to Embodiment 1 1A is a cross-sectional view taken along line AA in FIG. Side view of the main part showing the state where the drilling device is lifted Side view of the main part showing a state in which the drilling device is in contact with the slope Side view of the main part showing the state where the drilling device is pressed against the slope Main part front view showing the state where the slope pressing part is pressed against the slope Main part front view showing another example of the concrete frame locking part (A) Front view of the punching device showing a state in which the operation unit is attached (b) Side view of a main part of the punching device showing a state in which the operation unit is attached (A) Front view of slope pressing portion of drilling device in embodiment 2 (b) Cross-sectional view taken along line BB in FIG. 10 (a) Schematic configuration diagram of the dust collector

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Punching device 2 Base frame 2a, 2b Horizontal part 3a Wire latching part 3b Pulley for wire 3b 'Pulley for auxiliary wire 3c Winch (wire adjustment means)
4 Guide cell advance / retreat cylinder (guide cell advance / retreat drive)
5 Piston rod 6 Guide cell fixing part 7 Guide cell 8a, 8b Guide part 9 Drifter 10 Drifter mounting part 10a Guide engaging part 11 Drifter advance / retreat drive part 12 Drive sprocket 13a, 13b Driven sprocket 14 Chain 15 Chain fixing part 16 For preventing bending Sprocket 17 Drilling rod 18 Bit 19 Operation part mounting part 20 Slope pressing part 20a Fixing part 21 Front part 22 Insertion opening part 23a, 23b Side part contact part (contact part)
24 Lower contact part (contact part)
25a, 25b Concrete frame locking portion 26 Support portion 26a Shaft holding portion 27 Positioning shaft 27a Rotating lever 27b Concrete frame abutting portion 28 Drilling rod holding portion 29 Holding portion driving cylinder 30 Winding wire 30a Front wire 30b Rear wire 32a, 32b Concrete frame locking part 33 Cylinder holding part 34 Hydraulic cylinder 34a Piston 34b Concrete frame contact part 35 Operation part 36 Support part 37 Moving cylinder (moving drive part)
38 Cylinder fixing part 39 Tilt cylinder (Tilt drive part)
40 Operation panel holding section 40a Piston rod fixing section 41 Sliding guide section 42 Operation panel support pillar section 43 Operation panel 44 Operation lever 51 Punching device 52 Slope pressing section 53 Front section 54 Dust collecting recess 55 Insertion openings 56a, 56b Side contact part (contact part)
57 Upper contact part (contact part)
58 Lower contact part (contact part)
59 Dust collection hole 60 Dust collection pipe 61 Bag filter (dust collection part)
61a Hopper part 61b Discharge part 61c Filter cloth 62 Exhaust pipe 63 Ventilation pipe F Hook X Slope Y Concrete frame Y1 Vertical frame Y2 Horizontal frame

Claims (6)

  A drilling device for drilling on a slope in a state of being suspended by a crane, comprising: (a) a base frame; (b) a guide cell disposed in the base frame so as to freely advance and retract; A drifter disposed in the guide cell so as to be movable back and forth; (d) an insertion opening formed in a substantially central part of the main body through which the drilling rod of the drifter is inserted; and a periphery of the insertion opening of the front surface of the main body And a plurality of abutting portions arranged on the same plane perpendicular to the length direction of the guide cell, each of which has a front surface pressed against the front surface of the guide cell. And (e) one guide cell that slides the guide cell forward to move the base frame in a direction away from the slope and press the slope pressing portion against the slope. An advancing / retreating drive unit; Punching device according to claim.   The slope pressing portion includes, as the abutting portion, at least a pair of side abutting portions disposed symmetrically on both sides of the insertion opening portion and a lower contact disposed on a lower portion of the insertion opening portion. The perforating apparatus according to claim 1, further comprising a contact portion.   The perforating apparatus according to claim 1, wherein the slope pressing portion includes a pair of concrete framework locking portions disposed on an upper portion thereof. The length of one of the front wire and the rear wire, one end of which is connected to the hook of the crane and the other end of which is connected to the front and rear portions of the base frame, and the front wire and the rear wire. The perforating apparatus according to any one of claims 1 to 3, further comprising a wire adjusting means for adjusting.   An operation unit disposed on a front side portion of the base frame, wherein the operation unit includes at least an operation panel for operating the guide cell advance / retreat drive unit and the drifter; The driving unit for movement that moves in a direction and / or the driving unit for tilting that adjusts the tilt of the operation panel is provided. Drilling device.   The slope pressing portion includes a dust collection recess that is recessed in the front portion of the slope pressing portion and has the insertion opening formed in the inner wall, and a dust collection hole formed in the inner wall of the dust collection recess. 2. A dust collecting pipe having one end connected to the dust collecting hole, and a dust collecting part connected to the other end of the dust collecting pipe. The punching device according to any one of 5 to 5.

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