KR101668334B1 - Automatic greasing apparatus for rock drill - Google Patents

Automatic greasing apparatus for rock drill Download PDF

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Publication number
KR101668334B1
KR101668334B1 KR1020150088578A KR20150088578A KR101668334B1 KR 101668334 B1 KR101668334 B1 KR 101668334B1 KR 1020150088578 A KR1020150088578 A KR 1020150088578A KR 20150088578 A KR20150088578 A KR 20150088578A KR 101668334 B1 KR101668334 B1 KR 101668334B1
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KR
South Korea
Prior art keywords
lubricating oil
lubricant
drill rod
drill
contact pad
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Application number
KR1020150088578A
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Korean (ko)
Inventor
박승현
장동욱
Original Assignee
주식회사 화인테크놀로지
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Priority to KR1020150088578A priority Critical patent/KR101668334B1/en
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Publication of KR101668334B1 publication Critical patent/KR101668334B1/en

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    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/16—Connecting or disconnecting pipe couplings or joints
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/18—Connecting or disconnecting drill bit and drilling pipe
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B3/00—Rotary drilling
    • E21B3/02—Surface drives for rotary drilling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16N—LUBRICATING
    • F16N7/00—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • General Engineering & Computer Science (AREA)
  • Earth Drilling (AREA)

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic lubricating oil supply apparatus for a rock drill, and more particularly, to an automatic lubricating oil supply apparatus for a lock drill capable of automatically supplying lubricating oil to a drill rod side when a drill rod is drawn.
To this end, a plurality of drill rods are stacked to supply a drill rod to the rock drill side. A lubricant supply unit is provided in the drill rod outlet of the drill rod changer to supply lubricant to the drill rod. The lubricant supply unit supplies lubricant to the lubricant supply unit. The present invention provides a configuration that includes a pumping unit to continuously supply a constant amount of lubricating oil each time the drill rod is drawn out.

Description

Automatic greasing apparatus for rock drill

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic lubricating oil supply apparatus for a rock drill, and more particularly, to an automatic lubricating oil supply apparatus for a lock drill capable of automatically supplying lubricating oil to a drill rod side when a drill rod is drawn.

Generally, when building foundation files for construction of civil engineering structures at the construction site, or when there are hard rocks in the working area in excavation works in mines, drill holes in the rocks using rock drilling equipment and install explosives in these holes Use a blasting technique to remove hard rock by impact of explosion.

The rock drilling apparatus drills rocks while rotating a drill rod with a bit at one end. In this case, when the depth of drilling of the rock is deep, one drill rod having a long length may be used, or a plurality of drill rods may be connected to be used for the depth to be drilled.

 Korean Patent Registration No. 10-1200056 of the present applicant discloses a technique of automatically connecting a plurality of drill rods in a drill rod changer (auto load change) provided at one side of a rock drill device in accordance with the drilling depth, .

In this drill rod, at least one of the plurality of drill rods is a drill rod in which a bit is fastened at one end and a nut is formed at the other end. The other drill rods are formed as drill rods in which a nut portion is formed at one end and a bolt portion is formed at the other end.

Accordingly, in the case of the drill rod to which the bit is fastened, it is possible to connect with the shaker of the rock drill through the nut portion. In the case of the remaining drill rod, the nut portion of the other drill rod, .

However, in the above-mentioned prior art, there is a problem that the drill rod connection is worn or damaged due to frequent connection and disconnection of the drill rod. When strong tightening occurs between the drill rods connected to each other, the work time is delayed in separating the drill rods, and the drill rod is damaged or broken during the process of separating the drill rods.

As a result, there is a problem in that a damaged drill rod must be repaired or a damaged drill rod can not be used, resulting in cost for repairs and re-purchasing, and a loss due to failure to use during repair.

SUMMARY OF THE INVENTION The present invention has been made to solve the problems of the above-described drill rod changer, and it is an object of the present invention to provide a drill load changer which automatically supplies lubricant to the drill rod side when the drill rod is withdrawn from the drill rod changer, It is an object of the present invention to provide an automatic lubricating oil supply apparatus for a lock drill which enables quick and accurate connection and disconnection.

According to an aspect of the present invention, there is provided an automatic lubricating oil supply apparatus for a rock drill, which automatically supplies lubricating oil to a drill rod which is drawn out from a drill rod changer for supplying a drill rod to the lock drill side , And a lubricating oil supply unit for supplying lubricating oil to the drill rod which is installed and drawn out to the rod outlet, and a lubricating oil pumping unit for injecting lubricating oil into the lubricating oil supply unit.

The lubrication oil supply unit includes a contact pad which is provided on a path through which the drill rod is drawn out and which is driven by the contact of a drill rod that is drawn out, and a contact pad which is operatively connected to the contact pad, And a lubricating oil supply valve for supplying the lubricating oil to the side of the drill rod while being retracted together with the contact pad when the contact pad is brought into contact therewith so as to automatically supply the lubricating oil to the side of the drill rod.

The lubricant supply unit may further include a guide plate installed at the drill rod outlet and providing a space through which the lubricant is supplied to the drill rod while guiding the drill rod drawn out to the drill rod outlet, The contact pads are installed in the contact pad operation holes formed on one side of the guide plate so as to be movable back and forth.

The lubricating oil supply unit may include a body plate provided at one side of the guide plate provided at the drill rod outlet port of the drill rod changer from which the drill rod is drawn out and having a sliding hole formed at the center thereof so that the contact pad can slide back and forth

A lubricating oil pocket serving as an intermediate passage for supplying and blocking lubricating oil is formed and the lubricating oil supply valve is connected to both sides of the lubricating oil pocket so as to slide back and forth A return spring that is coupled between the body plate and the valve housing to return the contact pad retracted by contact with the drill rod to an original position when the contact pad is released from contact with the drill rod; So that the lubricating oil is automatically supplied to or blocked from the drill rod side.

The valve housing may include a sliding engagement portion formed at the center of the valve housing to allow the lubricating oil supply valve to slide back and forth so that the lubricating oil supply valve is engaged and a sliding engagement portion formed in the sliding engagement portion, And the lubricating oil supplied to the lubricating oil inlet port side is connected to the lubricating oil inlet port side to temporarily store the lubricating oil to the lubricating oil discharge port side from the lubricating oil supply valve toward the drill rod in accordance with the sliding movement of the lubricating oil supply valve And a lubricant pocket serving as an intermediate passage for blocking off.

The lubricating oil supply valve has a lubricating oil inlet formed at one end thereof for injecting lubricating oil from a pumping unit and a lubricating oil discharge port for discharging lubricating oil to the side of the drill rod at the other end thereof. A lubricant oil discharge hole for discharging the lubricant oil flowing into the lubricant oil transfer pipe to the lubricant oil pocket is formed at a position where the lubricant oil pocket is provided at a position where the lubricant oil transfer pipe for guiding the lubricant oil to the lubricant oil discharge port is formed, A valve body formed with a lubricating oil inflow hole, which is a hole for introducing lubricating oil into the lubricating oil transfer pipe, at regular intervals in front and rear directions, and a lubricating oil passage formed in the lubricating oil transfer pipe between the lubricating oil discharging hole and the lubricating oil inflow hole, The conveying line and the lubricating oil And a partition wall partitioning the lubricant oil transfer conduit in which holes are formed so as to block each other. When the contact pad is moved backward in contact with the drill rod, the lubricant oil discharge hole and the lubricant oil inlet hole are located in the lubricant oil pocket, And when the contact pad returns to its original position as the contact pad is released from contact with the drill rod, the lubricant oil inflow hole is sealed off from the lubricant oil pocket to block supply of lubricant.

In this case, the contact pad is formed with a coupling hole through which the lubricant supply valve is coupled to the contact pad so as to interlock with the contact pad, and the lubricant supply valve, which is coupled through the coupling hole, And the lubricant supply valve is interlocked with the operation of the contact pads according to the operation of the contact pads.

The return spring may have a through hole through which the lubricating oil supply valve is inserted through the center, and a disc shape is continuously formed on the outer circumferential surface of the through hole in a spiral shape so as to form a resilient force So that the contact pad can slide back and forth.

The lubricating oil pumping unit is composed of a cartridge filled with lubricating oil and a cartridge block for injecting lubricating oil filled in the cartridge into the lubricating oil supplying unit so that lubricating oil can be injected into the lubricating oil supplying unit.

The automatic lubricating oil supply apparatus for a rock drill according to the present invention has the following effects.

In drilling operations to remove rock masses when hard rocks are produced during excavation work at the work site, it is possible to reduce the occurrence of abrasion of joints caused by continuous connection of drill rods composed of bolts and nuts when drilling blasters, Thereby making it possible to connect and disconnect the drill rod quickly and accurately, thereby shortening the working time.

Further, when connecting and disconnecting the drill rods, there is an advantage of minimizing the repair cost due to damage to the drill rod and reducing the cost of re-purchase when the drill rod is not used due to severe damage, thereby minimizing the maintenance cost.

1 is an overall perspective view of an automatic lubricating oil supply apparatus for a rock drill according to an embodiment of the present invention;
2 is a perspective view showing a lubricating oil supply unit of an automatic lubricating oil supply apparatus for a rock drill according to an embodiment of the present invention.
3 is an exploded perspective view of a lubricating oil supply unit in which a lubricating oil supply unit of an automatic lubricating oil supply apparatus for a rock drill is disassembled according to an embodiment of the present invention.
4 is a sectional view taken along line II of a lubricant supply unit in detail of a lubricant supply unit of an automatic lubricant supply apparatus for a rock drill according to an embodiment of the present invention.
5 is a cross-sectional view showing the structure of a valve housing and a lubricant supply valve of an automatic lubricating oil supply apparatus for a rock drill according to an embodiment of the present invention
6 is a perspective view showing a lubricating oil pumping unit of an automatic lubricating oil supply apparatus for a rock drill according to an embodiment of the present invention;
7A to 7C are cross-sectional views taken along a line II in the operation of the lubricating oil supply unit in the automatic lubricating oil supply apparatus for a rock drill according to the embodiment of the present invention

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an automatic lubricating oil supply apparatus for a rock drill according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is an overall perspective view of an automatic lubricating oil supply apparatus for a rock drill according to an embodiment of the present invention, and FIG. 2 is a perspective view illustrating a lubricating oil supply unit of an automatic lubricating oil supply apparatus for a rock drill according to an embodiment of the present invention.

As shown in FIGS. 1 and 2, the automatic lubricating oil supply apparatus for a rock drill according to an embodiment of the present invention automatically supplies lubricating oil to a drill rod drawn out from a drill rod changer for supplying a drill rod to the lock drill side , And mainly comprises a lubricating oil supply unit (20) and a lubricating oil pumping unit (30).

Here, the drill rod changer 10 is provided on one side of a lock drill (not shown) and automatically supplies the drill rods L one by one, and a plurality of drill rods L are mounted. At both ends of the drill rod changer (10), a housing (13) in the form of a circular cap facing each other is included. Specifically, the housing 13 is disposed so as to be rotatable and long along the longitudinal direction of the drill rod changer 10 so as to face each other at both ends of a rotation axis R for aligning and supplying the drill rod.

The housing 13 serves to prevent the drill rod L from moving up and down and from side to side while accommodating the connection portion of the drill rod L. The housing 13 is provided at one side thereof with an opening The drill rod outlet 12 is formed.

The detailed configuration and operation of the drill load changer 10 are described in detail in Korean Patent Registration No. 10-1200056 (a lock drill apparatus having an automatic load changer) filed by the present applicant. A description thereof will be omitted.

The present invention is characterized in that the drill rod outlet 12 is provided with an automatic lubricating oil supply device to automatically supply lubricating oil to the connecting portion of the drill rod L drawn out to the drill rod changer 10.

3 is an exploded perspective view of a lubricating oil supply unit in which a lubricating oil supply unit of an automatic lubricating oil supply apparatus for a rock drill is disassembled according to an embodiment of the present invention.

3, the lubricating oil supply unit 20 is installed in the drill rod outlet 12 so that when the drill rod L is drawn out, it is automatically lubricated to the side of the drill rod L by the contact of the drill rod L. [ As a means for supplying the above-mentioned components.

To this end, the lubricant supply unit 20 mainly comprises a guide plate 21, a body plate 22, a valve housing 23, a contact pad 24, an on-off valve 25 and a return spring 26.

The guide plate 21 is provided on the side of the drill rod outlet 12 to provide a space through which the lubricant is supplied to the drill rod L while guiding the drill rod L to be drawn out.

Specifically, the guide plate 21 is installed to the outside of the housing 13 at a position where the drill rod outlet 12 is formed with the same width as the drill rod outlet 12. The guide plate 21 is provided with a bottom surface 21a having a width slightly larger than the diameter of the drill rod L and a vertical And a guide piece 21b.

That is, the guide plate 21 has a shape of 'C' with front, rear and top openings, and is disposed outside the housing 13 so that the bottom surface is positioned downward and the front and rear openings are aligned with the drill- Respectively.

A contact pad operation hole 21c is formed on one side of the guide piece 21b so that the contact pad 24 to which the drill rod L comes into contact when the drill rod L is drawn out can be slid back and forth.

At this time, the contact pad 24 passes through the contact pad operation hole 21c, and the front end portion of the contact pad 24 is positioned so as to protrude from the path through which the drill rod L is drawn. That is, the contact pad 24 is installed such that its front end portion is located inside the guide plate 21. [

The drill rod L is brought into contact with the contact pad 24 provided on the drawing path of the drill rod L when the drill rod L is pulled out by the guide plate 21. [

The contact pad 24 is moved backward while being in contact with the drill rod L by an operation in which the drill rod L is pulled out and is advanced to return to the original position while the drill rod L is detached. The contact pad 24 is a means provided to open and close the lubricating oil supply valve 25 by an operation in which the drill rod L is drawn out.

The contact pad 24 is formed in a disc shape having a predetermined thickness and is inclined with respect to the entire periphery of the contact pad 24 at the edge side of the front surface that is in contact with the drill rod L. [ Even if the front surface of the contact pad 24 is provided on the path through which the drill rod L passes, the drill rod L is naturally contacted by the inclined surface of the contact pad 24 without being caught by the contact pad 24 Can be passed.

The contact pad 24 is formed with a coupling hole 24a through which a lubricating oil supply valve 25 is inserted. A nut buried portion 24b is provided in the front side coupling hole 24a of the contact pad 24 so that a nut N to be coupled to the lubricant supply valve 25 is not detached from the contact pad 24, do. The nut N is buried in the nut buried portion 24b on the front surface of the contact pad 24 so as not to interfere with the contact between the contact pad 24 and the drill rod L. [

That is, the lubricant supply valve 25 is integrally coupled to the contact pad 24 through the nut N, while the front end portion of the lubricant supply valve 25 is installed to penetrate the center of the contact pad 24.

The contact pad 24 and the lubricant supply valve 25 are operable to be interlocked with each other so that the contact pad 24 and the lubricant supply valve 25 are interlocked The lubricating oil supply valve 25 is opened and closed.

The return spring 26 resiliently supports the contact pad 24 when the contact pad 24 is retracted by the operation of pulling out the drill rod L so that the return spring 26 can be rotated irrespective of the position where the drill rod L passes. So that the contact pad 24 is returned to its original position by an elastic force when the drawing of the drill rod L is completed.

To this end, the return spring 26 is formed with a through-hole 26a through which a lubricant supply valve 25 is inserted through the center, and is formed in a spiral shape to provide a resilient force to the contact pad 24 in a wide area And an elastic portion 26b is provided.

As a result, the operation of the contact pad 24 due to the withdrawal of the drill rod L is controlled to enable the operation of supplying or cutting off the lubricating oil.

The lubricating oil supply valve 25 is means for supplying lubricating oil to the drill rod L side while interlocking with the contact pad 24.

The valve housing 23 serves as an intermediate passage for supplying and blocking the lubricant to the lubricant outlet 25c of the lubricant supply valve 25 as the lubricant supply valve 25 is operated forward and backward.

4 and 5, the lubricant supply valve 25 and the valve housing 23 will be described in more detail.

The valve housing 23 is coupled to the body plate 22 with a predetermined gap therebetween, and a lubricant pocket P serving as an intermediate passage for supplying and blocking lubricant is formed in the valve housing 23. A sliding engagement portion 23a is formed on both sides of the lubricant oil pocket P so that the lubricant oil supply valve 25 is slidably moved back and forth.

This allows the lubricating oil supply valve 25 to slide in the valve housing 23 and to supply and block the lubricating oil.

 The lubricating oil supply valve 25 supplies lubricating oil when the drill rod L is drawn out by the operation of drawing out the drill rod L and cuts off the supply of the lubricating oil after the drawing of the drill rod L is completed It is means.

The lubricating oil supply valve 25 is provided at one end thereof with a lubricating oil inlet 25a through which lubricating oil is injected from the pumping unit 30 and at the other end with a lubricating oil discharge port (25c) is formed. And a lubricant transfer pipe 25b for guiding the lubricant introduced into the lubricant oil inlet 25a to the lubricant oil outlet 25c is elongated.

 A lubricating oil discharge hole H1 which is a hole through which the lubricating oil flowing into the lubricating oil transfer path 25b is discharged to the lubricating oil pocket P is provided at a position where the lubricating oil pocket P is provided, A lubricant oil inlet hole H2, which is a hole through which the lubricant oil is introduced into the lubricant oil feed line 25b, are formed at regular intervals in the front and rear direction.

And a lubricant transfer pipe 25b provided in the lubricant transfer pipe 25b between the lubricant oil discharge hole H1 and the lubricant oil inlet hole H2 to form the lubricant oil discharge hole H1, And a partition wall W partitioning the lubricating oil transfer path 25b formed with the lubricating oil transfer path 25b from each other.

When the contact pad 24 is moved backward in contact with the drill rod L, the lubricant oil discharge hole H1 and the lubricant oil inlet hole H2 are formed in the lubricant oil pocket P When the contact pad 24 is returned to its original position as the contact pad 24 is released from the contact with the drill rod L, the lubricant oil inlet hole H2 is separated from the lubricant oil pocket P, .

Accordingly, the lubricant is supplied only when the drill rod L is drawn out, and after the drill rod L is drawn out, the lubricant is cut off, thereby reducing unnecessary waste of the lubricant.

6 is a perspective view showing a lubricating oil pumping unit of an automatic lubricating oil supply apparatus for a rock drill according to an embodiment of the present invention.

Referring to FIG. 6, the lubricating oil pumping unit 30 is means for pumping lubricating oil to the lubricating oil supply unit 20 side.

The lubricating oil pumping unit 30 includes a cartridge 31 filled with lubricating oil and a cartridge block 32 for injecting lubricating oil filled in the cartridge 31 into the lubricating oil supply unit 20 do.

The lubricating oil pumping unit 30 discharges the lubricating oil filled in the cartridge 31 to the lubricating oil injecting portion 32b by the oil pressure passing through the cartridge block 32 when high pressure oil is injected into the oil pressure inlet 32a Lubricating oil is injected into the lubricating oil supply unit 20 side.

As a result, the lubricating oil is periodically injected into the lubricating oil supply unit 20 so that the lubricating oil can be continuously supplied to the plurality of drill rods L.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an operation of an automatic lubricating oil supply apparatus for a rock drill according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIGS. 7A to 7C are cross-sectional views taken along the line I-I of FIG. 7 showing the operation state of the lubricant supply unit in the automatic lubricant supply apparatus for a rock drill according to the embodiment of the present invention.

Specifically, FIG. 7A is a view showing a state where the lubricating oil injected into the lubricating oil inlet 25a is blocked by the partition wall W. FIG. 7B is a view showing a state in which the lubricant supply valve 25 is operated while the drill rod L is in contact with the contact pad 24 and the lubricant is discharged to the lubricant discharge port 25c. 7C is a view showing a state in which the contact pad 24 is returned to its original position after the drill rod L is drawn out and the lubricating oil is shut off.

Referring to Fig. 7A, lubricating oil is first injected into the lubricating oil inlet 25a from the lubricating oil pumping unit. The injected lubricating oil is formed between the lubricating oil discharge hole H1 of the lubricating oil transfer pipe 25b and the lubricating oil inlet hole H2 and is connected to the lubricating oil feeding pipe 25b on the lubricating oil inlet 25a side and the lubricating oil feeding pipe 25c on the lubricating oil discharge port 25c side. (W) partitioning the upper and lower walls (25b) from each other.

The lubricating oil blocked by the partition wall W is discharged to the lubricating oil discharge hole H1. The discharged lubricating oil is injected into the lubricating oil pocket P formed inside the valve housing 23 and stays in the lubricating oil pocket P.

7B, the drill rod L drawn out from the drill rod changer 10 to the drill rod outlet 12 passes through the guide plate 21 to supply the drill rod L to the lock drill side. The contact pad 24 is moved back while contacting the contact pad 24 provided on the drawing path of the drill rod L when the drill rod L passes the guide plate 21. [

Accordingly, the lubricant supply valve 25 coupled to the contact pad 24 is also moved backward as the contact pad 24 is. As the lubricating oil supply valve 25 is retracted, the lubricating oil inlet hole H 2 is located inside the lubricating oil pocket P formed in the valve housing 23.

The lubricating oil staying in the lubricant oil pocket P flows into the lubricant oil inlet hole H2 formed in the lubricant oil supply valve 25 and moves to the lubricant oil transfer pipe 25b in the direction of the lubricant oil outlet 25c. The lubricating oil moved in the direction of the lubricating oil discharge port 25c is discharged to the side of the drill rod L through the lubricating oil discharge port 25c.

At this time, the lubricating oil can be moved to the lubricating oil discharge port 25c side by the pressure for pumping and injecting the lubricating oil in the lubricating oil pumping unit 30.

The return spring 26 is installed while elastically supporting the contact pad 24 on the outside of the lubricating oil supply valve 25 so that the backward contact of the backward contact pad 24 ).

7C, when the drill rod L is completely drawn out from the guide plate 21, a return spring 26 provided on the outer peripheral surface of the lubricating oil supply valve 25 is provided between the valve housing 23 and the body plate 22, The contact pads 24 abutting the return spring 26 are pushed by the elasticity of the contact pads 24, and the contact pads 24 are returned to the original position by the elastic force.

At this time, the lubricating oil supply valve 25 coupled to the contact pad 24 is also returned, so that the lubricating oil inlet hole H2 is separated from the lubricating oil pocket P formed in the valve housing 23. [ As a result, the supply of lubricating oil to the side of the drill rod L is interrupted while the lubricating oil transfer path 25b is shut off again.

As described above, according to the present invention, when the drill rods L are connected to each other, the drill rod L is automatically supplied with the lubricant to the connection portion (bolt portion) side of the drill rod L while the drill rod is drawn out, Thereby reducing wear and tear caused by the connection of the connector. And the connection and disconnection operation of the drill rod can be performed quickly and accurately, thereby shortening the working time.

10: Drill rod changer 11: Drill rod loading section
12: Drill rod outlet 20: Lubricant supply unit
21: guide plate 21a: bottom surface
21b: guide piece 21c: contact pad operation hole
22: body plate 23: valve housing
P: Lubricant oil pocket 23a: Sliding joint part
24: contact pad 24a: engaging hole
24b: Nut buried portion N: Nut
25: Lubricant supply valve 25a: Lubricant inlet port
25b: lubricating oil transfer pipe 25c: lubricating oil discharge port
H1: Lubricating oil discharge hole H2: Lubricating oil discharge hole
W: partition wall 26: return spring
26a: Through hole 26b:
30: lubricating oil pumping unit 31: cartridge
32: Cartridge block 32a: Hydraulic inlet
32b: lubricating oil injection part B: valve body
L: Drill rod

Claims (9)

An automatic lubricating oil supply apparatus for a lock drill which automatically supplies lubricating oil to a drill rod drawn out from a drill rod changer (10) for supplying a drill rod to a lock drill side,
A lubricant supply unit 20 installed in the drill rod outlet 12 of the drill rod changer 10 to supply lubricant to the drawn-out drill rod L; And
And a lubricating oil pumping unit (30) for injecting lubricating oil into the lubricating oil supply unit (20)
The lubricant supply unit 20 includes a contact pad 24 which is installed on a path through which the drill rod L is drawn out to the drill rod outlet 12 side and is operated in the forward and backward directions by the contact of the drawn drill rod L; And
And is connected to the contact pads 24 so as to be interlocked with each other so that the drill rod L moves back with the contact pads 24 when the contact pads 24 are contacted to supply the lubricant to the drill rod L side And a lubricating oil supply valve (25) for automatically supplying lubricating oil for a rock drill.
delete The method according to claim 1,
The lubricant supply unit 20 is installed in the drill rod outlet 12 so that lubricant is supplied to the drill rod L side while guiding the drill rod L drawn out to the drill rod outlet 12 to be drawn out. And the contact pad 24 is installed in the contact pad operation hole 21c formed at one side of the guide plate 21 so as to be movable forward and backward Automatic supply of lubricant for rock drill.
The method of claim 3,
The lubricant supply unit 20 is installed at one side of the guide plate 21 provided at the drill rod outlet 12 where the drill rod L is drawn out from the drill rod changer 10, A body plate (22) having a sliding hole (22a) so as to be slidable back and forth;
A lubricant pocket P is formed at a predetermined distance from the body plate 22 so as to face each other and serves as an intermediate passage for supplying and blocking lubricant oil, A valve housing (23) having a sliding engagement portion (23a) through which the supply valve (25) is slidably moved forward and rearward; And
When the contact pad 24 is coupled between the body plate 22 and the valve housing 23 and brought into contact with the drill rod L to return the contact pad 24 to the original position And a return spring (26) for supplying the lubricant to the lock drill.
The method of claim 4,
The valve housing 23 includes a sliding engaging portion 23a formed at the center of the valve housing 23 to allow the lubricating oil supply valve 25 to slide back and forth and to which the lubricating oil supply valve 25 is engaged. And
A space formed in the sliding engagement portion 23a and connected to the side of the lubricant oil inlet 25a through which the lubricant is injected from the lubricant oil supply valve 25 to temporarily store the lubricant oil injected into the lubricant oil inlet 25a, A lubricant oil pocket serving as an intermediate passage for supplying and blocking lubricant to the lubricant oil discharge port 25c side from which the lubricant is discharged from the lubricant oil supply valve 25 toward the drill rod L in accordance with the sliding movement of the lubricant oil supply valve 25, (P). ≪ / RTI >
The method of claim 5,
The lubricating oil supply valve 25 is provided at one end thereof with a lubricating oil injection port 25a through which lubricating oil is injected from the pumping unit 30 and at the other end with a lubricating oil discharge port 25c And a lubricating oil transfer pipe 25b for guiding the lubricating oil introduced into the lubricating oil inlet 25a to the lubricating oil discharge port 25c is elongated. A lubricating oil discharge hole H1 which is a hole through which lubricating oil flowing into the lubricating oil transfer path 25b is discharged to the lubricating oil pocket P and a hole through which the lubricating oil remaining in the lubricating oil pocket P flows into the lubricating oil transferring path 25b A valve body B formed with lubricant oil inlet holes H2 formed at predetermined intervals in the front and rear direction,
A lubricant oil feed pipe 25b provided in the lubricant oil feed pipe 25b between the lubricant oil discharge hole H1 and the lubricant oil inlet hole H2 and having the lubricant oil discharge hole H1 formed therein, And a partition wall (W) partitioning the formed lubricant oil transfer conduits (25b) from each other;
The lubricating oil discharge hole H1 and the lubricating oil inlet hole H2 are located in the lubricating oil pocket P so that the lubricating oil is discharged. Wherein when the contact pad (24) returns to its original position as it is disengaged from the drill rod (L), the lubricant inlet hole (H2) is sealed off the lubricant pocket (P) Automatic supply of lubricating oil.
The method according to claim 1,
The contact pad 24 is formed at its center with a coupling hole 24a through which the lubricating oil supply valve 25 is engaged with the contact pad 24 and is inserted through the coupling hole 24a, A nut buried portion 24b is provided so that a nut N for fixing the supply valve 25 so as not to be separated from the contact pad 24 is embedded so as not to interfere with the operation of the contact pad 24. [ Automatic supply of lubricant for rock drill.
The method of claim 4,
The return spring 26 is formed with a through hole 26a through which the lubricating oil supply valve 25 is inserted through the center, and a disk shape is continuously formed in a continuous spiral shape on the outer circumferential surface of the through hole 26a, Characterized in that the contact pad (24) is provided with an elastic portion (26b) which provides a restoring force in a wide area.
The method according to claim 1,
The lubricating oil pumping unit 30 includes a cartridge 31 filled with lubricating oil and a cartridge block 32 for injecting the lubricating oil combined with the cartridge 31 into the lubricating oil supply unit 20 Automatic supply of lubricating oil for rock drill.
KR1020150088578A 2015-06-22 2015-06-22 Automatic greasing apparatus for rock drill KR101668334B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110905589A (en) * 2019-12-10 2020-03-24 河南能源化工集团研究总院有限公司 Gas extraction drilling and punching coordination operation system and method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6405810B1 (en) * 1999-08-25 2002-06-18 Lincoln Industrial Corporation Method of lubricating and lubricant spraying apparatus
KR20120004795A (en) * 2010-07-07 2012-01-13 주식회사 필엔지니어링 Rock drilling unit with auto rod change

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6405810B1 (en) * 1999-08-25 2002-06-18 Lincoln Industrial Corporation Method of lubricating and lubricant spraying apparatus
KR20120004795A (en) * 2010-07-07 2012-01-13 주식회사 필엔지니어링 Rock drilling unit with auto rod change

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110905589A (en) * 2019-12-10 2020-03-24 河南能源化工集团研究总院有限公司 Gas extraction drilling and punching coordination operation system and method

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