JP2012144860A - Boring device - Google Patents

Abstract

The present invention provides a drilling device that makes it difficult for swarf scraped by rock drilling work to accumulate in a guide rod.
A guide rod 6 and a connecting member 8 for connecting a drill portion of a rock drill are connected to each other, and the guide rod 6 forms a cylindrical guide path 55 and a cylindrical guide path extending in the front-rear direction. And a guide groove 30 formed in the cylindrical member so as to extend inside and outside the cylindrical member (cylindrical member 28) and extend along the cylinder axis of the cylindrical member, and the connecting member 8 is a cylindrical guide path of the guide rod. Provided with a slide body 51 slidable in a direction along the axis of the cylinder, and a connection body (connection plate 27) slidable in the guide groove 30 by connecting the slide body and the drill portion. In the drilling device configured to be slidable in the front-rear direction along the cylindrical guide path 55, the accumulated dust powder in the cylindrical guide path 55 is removed from the cylindrical guide path 55 by rock drilling work by the drill unit. Discharge means 1B (water supply hand) 60) with.
[Selection] Figure 2

Description

  The present invention relates to a perforating apparatus capable of forming a groove having a plurality of continuous holes.

  2. Description of the Related Art Conventionally, there has been known a drilling device that can continuously form a plurality of holes in a rock mass of a natural ground at regular intervals and can form a groove in which a plurality of holes are continuous. This drilling device includes a base connected to the pilot, a rock drill provided on the base so as to be movable back and forth, a support provided at the front of the base, and a front connected to the support. A guide rod protruding in the direction of the guide rod, and a connecting member for connecting the guide rod and the drill portion of the rock drill to each other, the guide rod extending in the front-rear direction, and a cylinder forming the cylindrical guide passage A guide groove formed in the cylinder member so as to penetrate the inside and outside of the member and extend along the axis of the cylinder of the cylinder member, and the connecting member extends in the cylindrical guide path of the guide rod along the axis of the cylinder The slide part can be slid in the front-rear direction along the cylindrical guide path by connecting the slide part and the drill part to each other and connecting the slide part and the drill part. It is configured.

JP 2002-327589 A JP 2005-83007 A

In the above drilling device, every time one hole is drilled, the drill part is returned backward to drill the next hole, but rock shavings (hereinafter referred to as chipping powder) are formed in a cylindrical shape by rock drilling work by the drill part. It becomes difficult to return the drill part to the rear by accumulating in the guide path. In particular, when the rock drilling operation is performed by driving the drill portion with the guide groove of the guide rod directed upward or sideways, the drill powder entering the cylindrical guide path is not easily discharged through the guide groove. As a result, the dust becomes easy to accumulate in the cylindrical guide path. In this case, every time one hole is drilled, the accumulated dust must be removed in the cylindrical guide path, resulting in a problem that the working efficiency is lowered.
In view of this, the present invention provides a drilling device in which the chips cut by the rock drilling work are less likely to accumulate in the guide rod.

A drilling device according to the present invention includes a base connected to the pilot, a rock drill provided to the base so as to be movable back and forth, a support provided at the front of the base, and a support connected to the support A guide rod that protrudes forward, and a connecting member that connects the guide rod and the drilling portion of the rock drill to each other, the guide rod extending in the front-rear direction, and a cylindrical guide passage And a guide groove formed in the cylindrical member so as to penetrate inside and outside of the cylindrical member to be formed and extend along the axis of the cylinder of the cylindrical member, and the connecting member uses the cylindrical guide path of the guide rod as the axis of the cylinder. By providing a slide body that is slidable in the direction along which the slide body and the drill part are connected and slidable in the guide groove, the drill part can be moved back and forth along the cylindrical guide path. For drilling work with a drill in a slidable drilling device Therefore, it is equipped with a discharge means that discharges the accumulated dust from the cylindrical guide path to the outside, so that the chipped powder by the rock drilling work can be prevented from collecting in the guide rod. Increase efficiency.
Since the discharging means is constituted by the water supply means for supplying water into the cylindrical guide path from the rear end opening of the cylindrical member, the water is supplied into the cylindrical guide path by the water supply means. The starch powder is discharged out of the cylindrical guide path, so that the powder powder is less likely to accumulate in the cylindrical guide path, and work efficiency can be improved.
Since the water supply means is equipped with a water injection mechanism that injects water so that it reaches the slide body in the cylindrical guide path, the accumulated powder is put outside from the cylindrical guide path inside the cylindrical guide path of the guide rod. It can be discharged efficiently.
The drill portion includes a piercing rod and a rotating shaft that transmits rotational force and striking force to the piercing rod, the piercing rod includes a cutting portion at a front end portion, and the rotating shaft and the piercing rod send water to the cutting portion. And a cutting part having a water discharge port for discharging water supplied to the cutting part through the water channel to the drilling target part, and the connecting member is located on the outer periphery of the drilling rod. The discharge means is composed of a water supply means for supplying water to the water channel and a water guide channel for guiding the water supplied to the water channel to the cylindrical guide channel of the guide rod. A through hole formed in the perforated rod so that the water channel passes through the inner surface and the outer surface of the perforated rod and communicates with the water channel, and the guide rod cylinder from the inner surface of the connecting member cylinder through the connecting body and the slide body. Communication passage communicating with the guide path and drilling in the through hole A communication groove portion that communicates the outer surface side opening of the lid and the inlet of the communication passage that opens to the inner surface of the cylinder of the connecting member, and the communication groove portion is one round of the outer surface of the perforated rod or the inner surface of the cylinder of the connecting member. Is formed by an annular groove that circulates once around the cylinder, so that water supplied into the cylindrical guide path via the water conduit is discharged out of the cylindrical guide path, and It becomes difficult to accumulate in the cylindrical guide path, and work efficiency can be improved.
Since the discharging means is constituted by the suction means for sucking the powder in the cylindrical guide path from the rear end opening of the cylindrical member of the guide rod, the powder in the cylindrical guide path is sucked, whereby the powder Is discharged to the outside of the cylindrical guide path, so that work efficiency can be improved.

The perspective view which shows the punching apparatus of this invention (Embodiment 1). 1 is an exploded perspective view showing a punching device of the present invention (Embodiment 1). Operation | movement explanatory drawing of the punching apparatus of this invention (Embodiment 1). Sectional drawing which shows the principal part of the punching apparatus of this invention (Embodiment 2). (A) is a perspective view which shows the principal part of the punching apparatus of this invention, (b) is a disassembled perspective view which shows the principal part of the punching apparatus of this invention (Embodiment 2). The figure which shows the punching apparatus of this invention (Embodiment 3). The figure which shows the punching apparatus of this invention (Embodiment 4).

Embodiment 1
As shown in FIG. 1 and FIG. 2, the perforating apparatus 1 includes a perforating machine 1A and a discharging means 1B. In FIG. 1, the front side, the rear side, the left side, the right side, the upper side, and the lower side of the perforating apparatus 1 are clearly defined. Hereinafter, description will be made according to this definition.
The drilling machine 1A is attached to the arm 2a of the pilot machine 2. The controller 2 is a machine called, for example, a drill jumbo.
1 A of drilling machines are provided with the base 4, the rock drill 5, the guide rod 6, the support part 7, the connection member 8 called a linear guide, and the water supply means 12 as an example of the discharge means 1B.
The base 4 connected to the front end of the arm 2a of the controller 2 includes a guide rail 4a on the upper surface. A drive device 9 of the rock drill 5 is mounted on the guide rail 4a so as to be movable in the front-rear direction.
The rock drill 5 includes a driving device 9 and a drill unit 3. The drill unit 3 includes a piercing rod 11 and a rotating shaft 10 that transmits rotational force and striking force to the piercing rod 11. The drive device 9 includes a rotational drive source configured by a motor or the like (not shown) and a front / rear drive source configured by a hydraulic mechanism or the like. A rotary shaft 10 is rotatably connected to a rotational drive source of the drive device 9. The piercing rod 11 is connected to the front end of the rotary shaft 10 and rotates with the rotational force of the rotary shaft 10. The piercing rod 11 includes a cutting portion 41 called a piercing bit at the front end. A cutting blade 42 is provided on the front surface of the cutting portion 41. The piercing rod 11 and the rotating shaft 10 are formed of a cylindrical member, and a water channel 10 a is formed by the in-cylinder space of the cylindrical member that forms the piercing rod 11 and the rotating shaft 10. The front wall of the cutting part 41 is provided with a water discharge port 43 formed by a through hole communicating with the water channel 10a and the outside of the drill rod 11. The water supplied to the cutting part 41 from the water supply means 12 through the water channel 10a is discharged to the drilling target part through the water discharge port 43, so that the chips accumulated in the vicinity of the cutting part 41 in the rock drilling are collected. Since it can be discharged to the rear (opening portion of the drilling hole), it is possible to improve the rock drilling work efficiency, to cool the cutting blade 42 in the rock drilling work, and to improve the life of the cutting blade 42.

  The water supply means 12 includes, for example, a water storage tank 12a, a water pressure adjustment mechanism 12b, and a water supply pipe 12c. For example, the water supply means 12 connects the one end 12d of the water supply pipe 12c and the water storage tank 12a so that they can communicate with each other, and prevents the water supply pipe 12c from rotating as the rotary shaft 10 rotates. In a configuration in which the other end 12e is maintained in a state where the other end 12e is inserted into the water channel 10a from the rear end opening 10b of the rotary shaft 10, a pressure pump as a water pressure adjusting mechanism 12b is installed in the middle of the water supply pipe 12c. Supply high-pressure water pressurized by a pressure pump into the water channel 10a, or connect a compressor (not shown) as a water pressure adjusting mechanism 12b in the middle of the water supply pipe 12c to supply compressed air from the compressor. The compressed air water, which is supplied into the pipe 12c and mixed with compressed air and water, is supplied into the water channel 10a.

The front-rear position of the rock drill 5 can be adjusted by manipulating the forward / backward moving mechanism (not shown) connected to the drive device 9 with the controller 2 and moving the housing of the drive device 9 back and forth.
At the time of drilling by the rock drill 5, the water supply means 12 supplies water into the water channel 10a and discharges the water from the water discharge port 43 of the cutting unit 41, while driving the drive device 9 to rotate the rotation shaft by the rotation drive source. 10 is rotated, and the casing of the driving device 9 is vibrated back and forth by a front and rear drive source to apply a rotational force and a striking force to the drilling rod 11 so that the cutting portion 41 of the drilling rod 11 drills a natural rock or the like. Since the object is cut, a hole can be formed in the perforated object.

The connecting member 8 connects the piercing rod 11 and the guide rod 6 to each other, and keeps the piercing rod 11 in a direction along the axis G of the guide rod 6 while keeping the distance between the piercing rod 11 and the guide rod 6 constant. It should be slidable.
The support portion 7 provided at the front portion of the base 4 is disposed above the base side support portion 13 and the base side support portion 13 made of a plate such as a steel plate connected and fixed to the front end of the base 4. A guide rod mounting body 14 made of a plate such as a steel plate is connected to each other by connecting means such as a bolt 20 and a nut 21. For example, as shown in FIG. 2, bolt through holes 22 are formed on the left and right of the upper end side of the base side support portion 13 and on the left and right sides of the lower end side of the guide rod mounting body 14, respectively. By fastening the nut 21 through the bolt 20 to the bolt through hole 22 of the guide rod mounting body 14, the base side support portion 13 and the guide rod mounting body 14 are connected.
The drill section 3 of the rock drill 5 can move forward and backward through a hole 16 formed in the guide rod mounting body 14.
The guide rod 6 extends so that the rear portion of the guide rod 6 is connected and fixed to the guide rod mounting body 14 and protrudes forward of the guide rod mounting body 14.
A regulating member 18 is attached to the front surface of the base side support portion 13.
The base 4 of the drilling machine 1A and the arm 2a of the controller 2 are connected to each other, and the arm 2a of the controller 2 is driven by a hydraulic mechanism (not shown). Therefore, when the operator controls the movement of the arm 2a by manipulating the pilot 2 to adjust the position and angle of the guide rod 6 at the front end of the drilling machine 1A and insert the guide rod 6 into the preceding hole. The guide rod 6 is positioned.

As shown in FIG. 2, a hole 25 for positioning and installing the guide rod 6 is formed in the center of the guide rod mounting body 14 so as to penetrate the front and rear of the plate with the upper part open. A hole 16 is formed below the hole 25 so as to penetrate the drill portion 3 of the rock drill 5 so as to be movable back and forth. The hole 25 and the hole 16 are vertically continuous by the communication hole 26.
In the guide rod 6, a conical sharp cap member 29 is detachably attached to the front end of a cylindrical member 28 as a cylindrical member. The guide rod 6 includes a cylindrical guide path 55 in which the slide body 51 of the connecting member 8 slides, and a guide groove 30 in which the connecting plate 27 of the connecting member 8 slides. The cylindrical guide path 55 extending in the front-rear direction is formed by the in-cylinder space of the cylindrical member 28. The guide groove 30 is formed in the cylinder wall of the cylindrical member 28 so as to penetrate the inside and outside of the cylindrical member 28 and extend along the axis of the cylinder of the cylindrical member 28. Since the guide rod 6 includes the cap member 29 at the front end, the front end of the guide rod 6 can be easily inserted into the preceding hole.

  The rear portion of the guide rod 6 is attached to the attachment plate 31. A fitting hole 32 is formed in the center of the mounting plate 31 so as to penetrate the front and rear of the plate with the lower part open. The rear portion of the guide rod 6 is fitted in the fitting hole 32 of the mounting plate 31 so that the positions of the guide groove 30 of the guide rod 6 and the opening portion 33 of the fitting hole 32 are aligned. The guide rod 6 and the mounting plate 31 are connected to each other by connecting the periphery of the end portion and the rear surface of the mounting plate 31 by connecting means such as welding. The attachment plate 31 to which the guide rod 6 is attached is connected and fixed to the guide rod attachment body 14. That is, the rear portion of the guide rod 6 is positioned in the installation hole 25, the front surface of the mounting plate 31 is applied to the rear surface of the guide rod mounting body 14, and the positions of the opening 33 and the communication hole 26 are matched in the front-rear direction. The guide rod 6 is detachably attached to the guide rod attachment body 14 by connecting the guide rod attachment body 14 and the attachment plate 31 with a fixture 36 (see FIG. 1) such as a bolt 34 and a nut 35. Since the installation hole 25 is open at the top, the guide rod 6 can be attached from above the hole 25, and the guide rod 6 can be easily attached to and detached from the guide rod mounting body 14.

  The piercing rod 11 includes a connecting member holding body 40 and a cutting portion 41. The connecting member holding body 40 is connected to the front end of the rotating shaft 10. Since the cutting part 41 is detachably attached to the front end of the connecting member holding body 40, it can be easily replaced. A cutting blade 42 formed of a super hard material such as chromium molybdenum steel or tungsten steel is provided on the front surface of the cutting portion 41. The connecting member holding body 40 is formed by a front shaft 45 and a rear shaft 46. The front shaft 45 is detachably connected to the rear portion of the cutting portion 41. The rear shaft 46 is detachably connected to the rear portion of the front shaft 45. The rear shaft 46 includes a large-diameter shaft portion 47 having a large diameter provided at the rear portion and a small-diameter shaft portion 48 having a small diameter provided at the front portion of the large-diameter shaft portion 47.

  The connecting member 8 includes a cylinder body 50 as an attachment body attached to the drill portion 3, a slide body 51 slidably attached to the guide rod 6, and a connection as a connection body for connecting the cylinder body 50 and the slide body 51. And a plate 27. The cylinder 50 of the connecting member 8 is connected and held by the connecting member holding body 40 of the perforated rod 11. The slide body 51 of the connecting member 8 is inserted into a cylindrical guide path 55 formed by the cylindrical hole of the guide rod 6, and the connecting plate 27 of the connecting member 8 is cylindrical through the guide groove 30 of the guide rod 6. It penetrates into and out of the guide path 55. Therefore, the slide body 51 of the connecting member 8 can slide back and forth in the cylindrical guide path 55 of the guide rod 6, and the drill portion 3 to which the connecting member 8 is connected also moves back and forth along the axis of the guide rod 6. Is possible. A cutting blade 53 called a tip is provided at least at the front end of the connecting plate 27. The cutting blade 53 is formed of a super hard material such as chromium molybdenum steel or tungsten steel. The tip of the cutting blade 53 is sharply formed. The cutting blade 53 is attached to the front end of the connecting plate 27 by a joining means such as welding. The cutting blade 53 corresponds to at least the lower end 6b of the guide rod 6 and the upper end of the cutting part 41 of the drilling rod 11 so that the rock between the guide rod 6 and the cutting part 41 of the drilling rod 11 can be rocked. A length is provided so as to straddle the position 41a (see FIG. 4).

The discharge means 1 </ b> B is configured by a water supply means 60 that supplies water from the rear end opening 28 a of the cylindrical member 28 of the guide rod 6 into the cylindrical guide path 55. The water supply means 60 includes a water storage tank 61, a water pressure adjustment mechanism 62, a water supply path 63, and a nozzle portion 64.
As the water supply path 63, for example, a water supply path 63 formed of a flexible tube such as a hose is used.
The nozzle portion 64 is formed by a nozzle cap attached to the rear end opening 28 a of the cylindrical member 28 of the guide rod 6. The nozzle cap is formed in a box shape having a water storage portion 64c for storing water discharged through the water supply path 63 and discharging it from a nozzle port 64a described later, and the front wall of the water storage portion 64c. Has a plurality of nozzle ports 64a such as shower nozzle ports formed by through holes, and has a connecting portion 64b for connecting the other end 63b of the water supply passage 63 on the rear surface of the water accommodating portion 64c.
The water supply means 60, for example, connects the one end 63a of the water supply path 63 and the water storage tank 61 so that they can communicate with each other, and is connected to the other end 63b of the water supply path 63 and the connecting portion 64b of the nozzle portion 64 to store water. In the configuration in which the water in the tank 61 can be supplied into the water accommodating portion 64 c of the nozzle portion 64 through the water supply passage 63, a pressure pump as the water pressure adjustment mechanism 62 is installed in the middle of the water supply passage 63. The high-pressure water pressurized by the pressure pump is supplied into the cylindrical guide path 55 through the nozzle portion 64, or a compressor (not shown) as a water pressure adjusting mechanism 62 is connected to the middle of the water supply path 63. Then, the compressed air from the compressor may be supplied into the water supply path 63 to supply the compressed air water in which the compressed air and water are mixed into the cylindrical guide path 55 via the nozzle portion 64. .
Since the water supply means 60 is provided, by supplying water into the cylindrical guide path 55 during the drilling operation of the drill section 3 or after the drilling operation of the drill section 3, the inside of the cylindrical guide path 55 of the guide rod 6 The accumulated powder can be discharged from the cylindrical guide path 55 of the guide rod 6 to the outside.
If a water injection mechanism for injecting water so as to reach the slide body 51 in the cylindrical guide path 55 is constituted by the water pressure adjusting mechanism 62 and the nozzle portion 64 of the water supply means 60, the cylindrical guide of the guide rod 6 is provided. It is preferable that the accumulated dust in the passage 55 can be efficiently discharged from the cylindrical guide passage 55 of the guide rod 6 to the outside.

  A drilling operation by the punching apparatus 1 will be described. When the first leading hole is formed, the guide rod 6 and the connecting member 8 are removed. That is, the front portion of the small diameter shaft portion 48 and the rear portion of the front shaft 45 are connected in a state where the connecting member 8 is not attached to the small diameter shaft portion 48 of the rear shaft 46 of the drilling rod 11. In this configuration, the drilling rod 11 of the drill part 3 is advanced forward through the hole 16 of the guide rod mounting body 14, the drill part 3 is driven by the driving device 9, and the rock mass is cut by the cutting part 41, leading hole 58. (See FIG. 3).

After the leading hole 58 is formed, the drill portion 3 is moved rearward from the guide rod attachment body 14 and then the guide rod 6 is attached to the guide rod attachment body 14 as described above. Then, the front shaft 45 is removed from the rear shaft 46 of the perforated rod 11, and the small-diameter shaft portion 48 of the rear shaft 46 is inserted into one end of the hole 52 of the cylindrical body 50 of the connecting member 8 and protrudes to the other end. The front part of the small-diameter shaft part 48 and the rear part of the front shaft 45 are connected. Thereby, the cylindrical body 50 of the connecting member 8 is held by the small-diameter shaft portion 48, and the longitudinal movement of the cylindrical body 50 is restricted by the rear end of the front shaft 45 and the front end of the large-diameter shaft portion 47. 8 is held between the rear end of the front shaft 45 and the front end of the large diameter shaft portion 47 by the small diameter shaft portion 48. That is, the cylindrical body 50 of the connecting member 8 is held in a state where it does not rotate even if the drilling rod 11 rotates. In other words, the connecting member 8 includes the cylindrical body 50 that is positioned on the outer periphery of the piercing rod 11 and rotatably supports the piercing rod 11.
As a detachable connecting means between the front part of the small diameter shaft part 48 and the rear part of the front shaft 45, a male screw part 49 formed at the front part of the small diameter shaft part 48 and a screw hole 49a formed at the rear part of the front shaft 45 are provided. And the front portion of the small-diameter shaft portion 48 is fitted into a non-illustrated fitting hole formed in the rear portion of the front shaft 45 and the screw hole is formed in the non-illustrated screw hole formed in the outer peripheral surface of the fitting hole. And screw connection by fastening the front portion of the small-diameter shaft portion 48. As described above, the connecting member 8 can be attached to the piercing rod 11 only by connecting the small diameter shaft portion 48 to the rear portion of the front shaft 45 through the hole 52 of the cylindrical body 50 of the connecting member 8. The attaching / detaching work of the connecting member 8 can be facilitated. Then, the drill portion 3 is advanced, and the slide body 51 of the connecting member 8 held by the connecting member holding body 40 of the perforating rod 11 is guided from the rear of the mounting plate 31 by the cylindrical hole of the guide rod 6. By inserting into the path 55, the connecting member 8 can be attached to the guide rod 6, and the attaching / detaching work of the connecting member 8 with respect to the guide rod 6 can be facilitated. The lateral width of the opening 33 of the mounting plate 31, the connecting hole 26 of the guide rod mounting body 14, and the guide groove 30 of the guide rod 6 is formed longer than the width of the connecting plate 27 of the connecting member 8, and the connecting plate 27 can pass through. . Therefore, when the drill portion 3 is advanced forward through the hole 16, the slide body 51 of the connecting member 8 advances forward in the cylindrical guide path 55, and the drill portion 3 advances forward along the guide rod 6. Thereby, the drill part 3 becomes movable in the direction along the axis of the guide rod 6 while maintaining a certain distance from the guide rod 6. That is, the connecting member 8 allows the drill portion 3 to move back and forth along the guide rod 6 while maintaining a certain distance from the guide rod 6.

  As described above, after the drill part 3 is slidably attached to the guide rod 6 by the connecting member 8, the driver of the pilot 2 controls the movement of the arm 2 a by maneuvering, and the position of the drilling device 1 The guide rod 6 is inserted into the leading hole 58 (see FIG. 3). After the guide rod 6 is inserted into the leading hole 58, the front end 18t of the regulating member 18 is abutted against the bedrock 57, and then the cutting section 41 at the front end of the drill section 3 is moved to the bedrock 57 and then the rock drill 5 is driven. By doing so, the cutting part 41 at the front end of the rock drill 5 cuts the rock mass 57 below the leading hole 58 and drills a trailing hole (not shown) continuous with the leading hole 58 at a certain interval. At this time, the leading hole 58 and the following hole are drilled by the cutting blade portion 53 of the connecting member 8, thereby forming a connecting hole that connects the leading hole 58 and the following hole. After that, when drilling holes, the holes formed before drilling the holes are used as preceding holes to form a plurality of holes, so that a plurality of holes are continuously connected like a daisy chain. A hole groove called a drilling hole, that is, a groove in which the periphery of a plurality of holes is connected to each other by a connection hole can be formed, and this groove is used for crushing the bedrock 57, for example, excavating a horizontal shaft.

  During the drilling operation, the water supply means 60 continues to supply water into the cylindrical guide path 55, or after the drilling operation, the water supply means 60 supplies water into the cylindrical guide path 55. As a result, the dust in the cylindrical guide path 55 is discharged.

  According to the punching device 1 of the first embodiment, since the water supply means 60 as the discharge means 1B is provided, the powder in the cylindrical guide path 55 is guided by the water supplied into the cylindrical guide path 55. Since it is discharged to the outside of the cylindrical guide path 55, the dust is less likely to accumulate in the cylindrical guide path 55. Therefore, every time one hole is drilled, the work of removing the accumulated powder in the cylindrical guide path 55 can be eliminated, and the work efficiency can be improved.

  In the first embodiment, the nozzle portion 64 of the water supply means 60 may be configured to be movable back and forth in the cylindrical guide path 55. In this case, water can be supplied to the vicinity of the slide body 51 in the cylindrical guide path 55 and the powdered powder near the slide body 51 can be discharged, so that the slide body 51 can be returned to the rear more smoothly. . In this case as well, if a water injection mechanism for injecting water so as to reach the slide body 51 in the cylindrical guide path 55 is constituted by the water pressure adjusting mechanism 62 and the nozzle portion 64 of the water supply means 60, the guide rod 6 It is preferable that the accumulated dust in the cylindrical guide path 55 can be efficiently discharged from the cylindrical guide path 55 of the guide rod 6 to the outside.

In the first embodiment, water may be supplied into the cylindrical guide path 55 only when scraping powder is removed from the cylindrical guide path 55.
Further, the other end of the pipe or hose constituting the water supply path 63 may be fixed in the cylindrical portion of the guide rod 6.

  In the first embodiment, the configuration including the support portion 7 in which the base side support portion 13 and the guide rod mounting body 14 are connected by connection means such as the bolt 20 and the nut 21 has been described. It is good also as a structure provided with the support part with which the support part 13 and the guide rod attachment body 14 were connected by the elastic connection means like a leaf | plate spring and a coil spring. In the case of the configuration including such a support portion, the guide rod 6 is maintained in a movable state with respect to the base side support portion 13 due to the elasticity of the elastic connecting means. Due to the force applied to the guide rod 6 by the collision, the guide rod 6 can move so as to change the traveling direction of the guide rod 6. Therefore, in the case where the traveling direction of the leading hole 58 formed in the rock 57 of the natural ground does not coincide with the traveling direction of the guiding rod 6 advanced by the arm 2a, the front end of the guiding rod 6 is placed in the leading hole 58. When the drilling device 1 is moved forward by maneuvering the arm 2 a after being inserted into the guide rod 6, the force applied to the guide rod 6 due to the collision between the preceding hole 58 and the guide rod 6 causes the guide rod 6 to move in the traveling direction of the preceding hole 58. The guide rod 6 can be easily inserted into the leading hole 58 because the advancing in the leading hole 58 while changing the traveling direction so as to coincide with each other. That is, when the advance direction of the leading hole 58 does not coincide with the advance direction of the guide rod 6 advanced by the arm 2a, detailed control of the position and angle of the guide rod 6 difficult by the arm 2a is not performed. After the front end of the guide rod 6 is inserted into the leading hole 58, the arm 2a is steered to advance the drilling device 1 forward, so that the guide rod 6 moves in the same direction as the traveling direction of the leading hole 58 by the action of the elastic connecting means. Therefore, the guide rod 6 can be easily inserted into the leading hole 58, and the operation of inserting the guiding rod 6 into the leading hole 58 can be facilitated.

Embodiment 2
4; as shown in FIG. 5, the discharge means 1B includes a water supply means 12 (see FIG. 1) for supplying water to the water path 10a, and a water guide path for guiding the water supplied to the water path 10a to the cylindrical guide path 55. 70 (see FIG. 4).
The water guide path 70 passes through the inner surface and the outer surface of the cylinder of the small-diameter shaft portion 48 of the perforated rod 11 so as to communicate with the water path 10 a and the inner surface of the cylinder 50 of the connecting member 8. A communication path 72 communicating with the inside of the cylindrical guide path 55 positioned behind the slide body 51 via the connecting plate 27 and the slide body 51, and the outer surface side opening of the small diameter shaft portion 48 in the plurality of through holes 71. And a communication groove 73 that communicates with the inlet of the communication path 72 that opens to the inner surface of the cylinder 50 of the cylinder 50 of the connection member 8.
The plurality of through holes 71 are formed at predetermined intervals on a circumference that makes one round of the outer periphery of the small diameter shaft portion 48. The communication path 72 communicates with the cylindrical guide path 55 located behind the slide body 51.
The communication groove 73 is an annular groove formed on the inner surface of the cylindrical body 50 so as to face the circumference of the small-diameter shaft portion 48 in which a plurality of through holes 71 are formed (see FIG. 4; 5). Or may be formed on the outer surface of the small-diameter shaft portion 48 so as to go around the outer periphery of the small-diameter shaft portion 48 in which the plurality of through-holes 71 are formed and communicate with the plurality of through-holes 71. You may comprise an oval-shaped groove part.

According to the second embodiment, the water supplied to the water channel 10 a is guided into the cylindrical guide channel 55 located behind the slide body 51 via the through hole 71, the communication groove 73, and the communication channel 72. Since the powder in the guide path 55 is flushed with water and discharged through the guide groove 30, the same effect as in the first embodiment can be obtained.
Further, in the second embodiment, since only one water supply means 12 for supplying water to the cutting part 41 is used, the cost of the water supply means can be reduced and the installation space for the water supply means can be reduced. .

  In the second embodiment, communication is established from the inner surface of the cylindrical body 50 of the connecting member 8 to the inside of the cylindrical guide path 55 positioned behind and forward of the slide body 51 via the connection plate 27 and the slide body 51. A passage may be provided. In this case, the powder in the cylindrical guide path in front of the slide body 51 is crushed by the water supplied into the cylindrical guide path 55 positioned in front of the slide body 51 via the communication path. Therefore, the slide body 51 can move smoothly forward, and an efficient rock drilling operation can be performed.

Embodiment 3
As shown in FIG. 6, the discharge means 1 </ b> B may be configured by suction (vacuum) means 80 that sucks the dust in the cylindrical guide path 55 from the rear end opening 28 a of the cylindrical member 28 of the guide rod 6. The suction means 80 includes a suction port 81 fitted in the rear end opening 28 a of the cylindrical member 28 of the guide rod 6, a suction device 82, one end connected to the suction port 81, and the other end connected to the suction device 82. It is the structure provided with the suction pipe 83 which forms the connected suction path.

  According to the third embodiment, the scraping powder in the cylindrical guide path 55 located behind the slide body 51 is sucked by the suction unit 80, whereby the scraped powder is discharged to the outside of the cylindrical guide path 55. Therefore, the same effect as in the first embodiment can be obtained.

  In the third embodiment, the suction port 81 of the suction means 80 may be configured to be movable back and forth in the cylindrical guide path 55 of the guide rod 6. In this case, the powder powder near the slide body 51 can be sucked in the cylindrical guide path 55 and the powder powder near the slide body 51 can be discharged, so that the slide body 51 can be returned to the rear more smoothly. Become.

  Further, in the third embodiment, during the drilling operation, the suction means 80 continues to suck the dust in the cylindrical guide path 55, or after the drilling operation, the suction means 80 moves the inside of the cylindrical guide path 55. By sucking the powder, the powder in the cylindrical guide path 55 is discharged.

Embodiment 4
As shown in FIG. 7, the discharging unit 1 </ b> B may be configured by a loading unit 90. The loading means 90 includes a loading material 94 having one end 91 connected to the rear portion of the slide body 51 and the other end 92 connected to the take-up shaft 93. The loading material 94 is made of, for example, a flexible material that is unwound from the take-up shaft 93 or taken up by the take-up shaft 93 following the back-and-forth movement of the slide body 51. The rod 6 is inserted into the cylindrical guide path 55 from the rear end opening 28a of the cylindrical member 28 in a fitted state, and fills the space in the cylindrical guide path 55 located behind the slide body 51. As a result, it is possible to prevent the dust from accumulating in the cylindrical guide path 55.

  In addition, the discharge | emission mentioned above to the punching machine disclosed by patent document 1 (Unexamined-Japanese-Patent No. 2002-327589) provided with the support part by which the base side support part 13 and the guide rod attachment body 14 were comprised integrally, for example. Means 1B may be provided.

1 drilling device, 1A drilling machine, 1B discharging means, 2 pilot, 3 drill part,
4 bases, 5 rock drills, 6 guide rods, 7 support parts, 8 connecting members, 10 rotating shafts,
10a water channel, 11 perforated rod, 12 water supply means, 27 connecting plate (connecting body),
28 cylindrical member (cylinder member), 28a rear end opening, 30 guide groove, 41 cutting part,
43 water outlet, 51 slide body, 55 cylindrical guideway,
60 water supply means (discharge means),
70 water conduit, 71 through-hole, 72 communication path, 73 communication groove,
80 Suction means (discharge means).

Claims (5)

A base connected to the pilot, a rock drill provided on the base so as to be movable back and forth, a support provided at the front of the base, and a guide rod connected to the support and protruding forward And a connecting member for connecting the guide rod and the drill portion of the rock drill to each other,
A cylindrical guide path extending in the front-rear direction, and a guide groove formed in the cylindrical member so that the guide rod extends along the axis of the cylinder of the cylindrical member while penetrating into and out of the cylindrical member forming the cylindrical guide path And
The connecting member includes a slide body that is slidable in a direction along the axis of the cylinder along the cylindrical guide path of the guide rod, and a connection body that is slidable in the guide groove by connecting the slide body and the drill portion. In the drilling device configured to be slidable in the front-rear direction along the cylindrical guide path,
A drilling device comprising a discharging means for discharging rock shavings accumulated in a cylindrical guideway by rock drilling work by a drill unit to the outside from the cylindrical guideway.   The perforating apparatus according to claim 1, wherein the discharging means is constituted by water supply means for supplying water into the cylindrical guide path from the rear end opening of the cylindrical member.   The perforating apparatus according to claim 2, wherein the water supply means includes a water injection mechanism for injecting water so as to reach the slide body in the cylindrical guide path. The drill portion includes a piercing rod and a rotating shaft that transmits rotational force and striking force to the piercing rod, the piercing rod includes a cutting portion at a front end portion, and the rotating shaft and the piercing rod send water to the cutting portion. And a cutting part having a water discharge port for discharging water supplied to the cutting part through the water channel to the drilling target part, and the connecting member is located on the outer periphery of the drilling rod. A cylindrical body that rotatably supports
The discharge means is composed of water supply means for supplying water to the water channel, and a water guide channel for guiding the water supplied to the water channel to the cylindrical guide channel of the guide rod,
A through-hole formed in the perforated rod so that the water conduit passes through the inner surface and the outer surface of the perforated rod and communicates with the water channel, and the guide rod passes through the connecting body and the slide body from the inner surface of the connecting member cylinder. A communication path that communicates with the cylindrical guide path, and a communication groove that communicates the outer surface side opening of the piercing rod in the through hole and the inlet of the communication path that opens to the inner surface of the cylinder of the coupling member,
2. The perforating apparatus according to claim 1, wherein the communicating groove is formed by an annular groove that makes one round of the outer surface of the drilling rod or the inner surface of the cylindrical body of the connecting member.   2. The perforating apparatus according to claim 1, wherein the discharging means is constituted by suction means for sucking rock shavings accumulated in the cylindrical guide path from the rear end opening of the cylindrical member of the guide rod.

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