CN109057710B - Pit drilling machine - Google Patents
Pit drilling machine Download PDFInfo
- Publication number
- CN109057710B CN109057710B CN201811106517.3A CN201811106517A CN109057710B CN 109057710 B CN109057710 B CN 109057710B CN 201811106517 A CN201811106517 A CN 201811106517A CN 109057710 B CN109057710 B CN 109057710B
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- CN
- China
- Prior art keywords
- hole
- drill
- guide rail
- oil
- pipe
- Prior art date
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- 238000005553 drilling Methods 0.000 title claims abstract description 37
- 239000003921 oil Substances 0.000 claims description 73
- 239000010687 lubricating oil Substances 0.000 claims description 26
- 230000001050 lubricating effect Effects 0.000 claims description 20
- 239000007788 liquid Substances 0.000 claims description 9
- 230000001681 protective effect Effects 0.000 claims description 6
- 239000000956 alloy Substances 0.000 claims description 4
- 229910045601 alloy Inorganic materials 0.000 claims description 4
- 238000005192 partition Methods 0.000 claims description 3
- 125000006850 spacer group Chemical group 0.000 claims 5
- 210000003437 trachea Anatomy 0.000 claims 2
- 238000000034 method Methods 0.000 description 5
- 239000011435 rock Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 239000004575 stone Substances 0.000 description 3
- 230000008602 contraction Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
Classifications
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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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/02—Drilling rigs characterised by means for land transport with their own drive, e.g. skid mounting or wheel mounting
- E21B7/024—Drilling rigs characterised by means for land transport with their own drive, e.g. skid mounting or wheel mounting having means for adapting to inclined terrain; having means for stabilizing the vehicle while drilling
-
- 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
- E21B10/00—Drill bits
-
- 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
- E21B15/00—Supports for the drilling machine, e.g. derricks or masts
-
- 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
- E21B6/00—Drives for drilling with combined rotary and percussive action
- E21B6/02—Drives for drilling with combined rotary and percussive action the rotation being continuous
- E21B6/04—Separate drives for percussion and rotation
-
- 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
- F16N11/00—Arrangements for supplying grease from a stationary reservoir or the equivalent in or on the machine or member to be lubricated; Grease cups
- F16N11/10—Arrangements for supplying grease from a stationary reservoir or the equivalent in or on the machine or member to be lubricated; Grease cups by pressure of another fluid
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Earth Drilling (AREA)
Abstract
The utility model relates to a pit drilling machine, which comprises an excavator running gear, a guide rail arranged on the excavator running gear, a sliding block arranged in the guide rail, a driving mechanism, a rotary power head arranged on the sliding block, an air compressor, a drill rod, a down-the-hole impactor connected with the drill rod and a drill bit connected with the down-the-hole impactor, wherein the guide rail is arranged in the vertical direction, the air compressor is connected with the rotary power head through an air pipe, the running direction of the excavator running gear is taken as the front-back direction, the excavator running gear comprises a frame, a running system and a rotary platform rotatably arranged on the frame, the rotary platform comprises a base plate rotatably arranged on the running system, a support plate slidably arranged on the base plate and a moving mechanism for driving the support plate to move along the left-right direction of the base plate, and the guide rail is arranged on the support plate. According to the utility model, the hard objects can be drilled at a proper position through the micro-movement of the drill bit, so that the drilling efficiency is improved, and the service life of the drill bit is ensured.
Description
Technical Field
The utility model relates to a pit drilling machine.
Background
At present, the down-the-hole drill equipment mainly comprises a split down-the-hole drill carriage and an integral down-the-hole drill; but the split type down-the-hole drill carriage is inconvenient to move, difficult to ascend, complex to operate, small in drilling position angle range and very bad in outdoor operator environment; while the integral down-the-hole drill solves a plurality of defects of the split down-the-hole drill carriage, the integral down-the-hole drill has the defects of high cost, high operation requirement on a driver and the like, so the integral down-the-hole drill cannot be widely popularized. For this purpose, in the chinese patent application entitled "dig-to-down-the-hole drill" issued to publication number CN 205558804U, a dig-to-down-the-hole drill is disclosed comprising: the device comprises a propeller, a rotary power head, a guide rail, a drill rod, a connecting disc, a control valve block, a down-the-hole impactor, a rod protector, a front support, a drill bit, a rail swinging oil cylinder, an air compressor, an excavator, an air inlet pipeline, an air inlet and a propulsion motor; the digging and down-the-hole drill is provided with an upright guide rail, the top end of the guide rail is provided with a propeller, the input end of the propeller is provided with a propulsion motor, and the propulsion motor converts the hydraulic energy of the excavator into the input rotation torque of the propeller; the track of the guide rail is provided with a rotary power head, the rotary power head is connected with the propeller through a chain, and the rotary torque output by the propeller is transmitted to the rotary power head through the chain and used as power for the rotary power head to advance and retreat on the guide rail; the bottom end of the rotary power head is sequentially connected with a drill rod, a down-the-hole hammer and a drill bit, the rotary power head converts hydraulic energy of the excavator into input rotary torque, and the rotary torque is sequentially transmitted to the drill bit through the drill rod and the down-the-hole hammer to be used as rotary power of the rotary head; the middle part of the guide rail is hinged with one side of a connecting disc, the upper part of the connecting disc is arranged at the front end of a small arm of the excavator, one end of the lower part of the connecting disc is hinged with a swinging rail oil cylinder, the other end of the swinging rail oil cylinder is hinged with the guide rail, and the whole left-right swinging of the guide rail can be realized by the extension and retraction of the swinging rail oil cylinder; an air compressor is arranged on one side of the excavator, an air outlet of the air compressor is connected with one end of an air inlet pipeline, and the other end of the air inlet pipeline is connected with an air inlet on the rotary power head; the air pressure generated by the air compressor is transmitted to the down-the-hole hammer through the air inlet pipeline and the air inlet, so that impact action, namely impact force, is generated, and the impact force acts on rocks or other working surfaces through the drill bit.
The down-the-hole drill in the patent is improved on the basis of an excavator, and has flexible movement and higher efficiency. But when used, it still has the following problems: 1. the running mechanism of the excavator is generally wheel type or crawler type, and when drilling holes on uneven ground, the excavator body is easy to slip when being stressed greatly; 2. in the drilling process, a plurality of drill rods are required to be assembled together according to the drilling progress, after drilling is finished, the drill rods are required to be disassembled one by one, and the efficiency is low due to the fact that manual assembly and disassembly are adopted in a traditional mode. 3. In traditional drilling equipment, the protection to the rotary power head and drilling rod hookup location is not enough, and under adverse circumstances, the life of rotary power head receives the influence. 4. In traditional drilling machine, generally utilize the air compressor machine to input high-pressure gas in to impacter and the drill bit, high-pressure gas blows off rubble and dust in the hole from the entrance to a cave, and the drill bit still realizes axial repetitive motion in the rotation in-process, under abominable environment, if the drill bit lacks sufficient lubrication then can influence the life of drill bit.
In view of this, the present inventors have conducted intensive studies on the above problems, and have made the present utility model.
Disclosure of Invention
The utility model aims to provide a pit drilling machine which is convenient to use and more durable.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the pit drilling machine comprises an excavator running gear, a guide rail arranged on the excavator running gear, a sliding block arranged in the guide rail, a driving mechanism for driving the sliding block to move up and down, a rotary power head arranged on the sliding block, an air compressor, a drill rod connected to the rotary power head, a down-the-hole impactor connected to the drill rod and a drill bit connected to the down-the-hole impactor, wherein the guide rail is arranged in the vertical direction, the air compressor is connected with the rotary power head through an air pipe, the running direction of the excavator running gear is the front-back direction, the excavator running gear comprises a frame, a running system and a rotary platform rotationally arranged on the frame, and the rotary platform comprises a base plate rotationally arranged on the running system, a support plate slidingly arranged on the base plate and a moving mechanism for driving the support plate to move along the left-right direction of the base plate.
As a preferable mode of the utility model, the moving mechanism comprises a screw rod rotatably arranged on the base plate, a screw rod nut arranged on the screw rod and a hand wheel for driving the screw rod to rotate, wherein the screw rod nut is fixedly connected with the support plate, a sliding groove is arranged on the base plate, a sliding rail is arranged on the support plate corresponding to the sliding groove, and the sliding groove extends along the left-right direction of the base plate.
As a preferred mode of the present utility model, the present utility model further comprises a plurality of positioning columns fixed on the support plate, wherein each positioning column comprises an oil cylinder arranged along a vertical direction and positioning legs arranged on a piston rod of the oil cylinder, each positioning column comprises a first positioning column, a second positioning column, a third positioning column and a fourth positioning column, the first positioning column and the second positioning column are arranged at the front end of the support plate and are respectively arranged at the left side and the right side of the support plate, and the third positioning column and the fourth positioning column are respectively arranged at the rear end of the support plate and are respectively arranged at the left side and the right side of the support plate.
As a preferable mode of the utility model, the rotary power head comprises a shell, a rotary motor arranged in the shell and a connecting pipe connected with the output end of the rotary motor, wherein a baffle plate is arranged in the shell and divides the inner cavity of the shell into a first cavity and a second cavity which are mutually isolated, the rotary motor is arranged in the first cavity, the air pipe is communicated with the second cavity, the output shaft of the rotary motor stretches into the second cavity from the first cavity, the connecting pipe is communicated with the second cavity, the drill rod is a hollow drill rod, and the inner cavity of the drill rod is communicated with the connecting pipe.
As a preferred mode of the utility model, the device further comprises a lubricating oil tank, liquid lubricating oil is filled in the lubricating oil tank, a first through hole and a second through hole are formed in the lubricating oil tank, the first through hole and the second through hole are positioned above the liquid level of the lubricating oil, the air pipe penetrates through the first through hole and penetrates out of the second through hole, a lubricating pipe section is formed in the lubricating oil tank, a radially arranged mounting hole is formed in the lubricating pipe section, an oil guide pipe is penetrated in the mounting hole, an oil guide hole is formed in the oil guide pipe, the oil guide hole is communicated with the lubricating pipe section, the lubricating pipe section is arranged in the horizontal direction, the oil guide pipe is arranged in the vertical direction, a first limit nut is arranged at the lower end of the oil guide pipe, a second limit nut is arranged at the upper end of the oil guide pipe, the first limit nut is positioned below the lubricating pipe section, the second limit nut is positioned above the lubricating oil tank, the upper end of the oil guide pipe is penetrated through a drainage pipe and an adjusting rod which is penetrated through at the upper end of the oil guide pipe, the upper end of the drainage pipe is in threaded connection with the lower end of the oil guide pipe, a conical seat is arranged at the upper end of the lubricating pipe, an adjusting conical seat is arranged at the lower end of the adjusting rod is matched with the conical seat, the adjusting conical head is arranged at the lower end of the adjusting rod, the adjusting rod is connected with the upper end of the lubricating pipe section in a threaded mode, which is connected with the threaded hole is arranged in a mode, and is communicated with the threaded through the upper limit nut.
As a preferred mode of the utility model, the connecting pipe extends out of the shell, and a conical protective cover with a downward opening is arranged on the outer wall of the connecting pipe.
As a preferable mode of the utility model, the lower end of the guide rail is hinged on the supporting plate through a first hinge shaft, the utility model further comprises a folding oil cylinder, the cylinder body of the folding oil cylinder is hinged on the supporting plate, the piston rod of the folding oil cylinder is hinged on the guide rail through a second hinge shaft, and the second hinge shaft is positioned above the first hinge shaft.
As a preferable mode of the utility model, the driving mechanism comprises a lifting oil cylinder arranged along the vertical direction, a chain wheel arranged at the upper end of the lifting oil cylinder and a chain erected on the chain wheel, wherein one end of the chain is fixed on the guide rail, and the other end of the chain is fixedly connected with the sliding block.
As a preferred mode of the utility model, the utility model further comprises a rod disassembling mechanism for assisting in disassembling the drill rod, the rod disassembling mechanism comprises a first spanner, a second spanner and a rotating oil cylinder for driving the second spanner to rotate, wherein the first spanner and the second spanner are hinged on the supporting plate, a cylinder body of the rotating oil cylinder is hinged with the supporting plate, a piston rod of the rotating oil cylinder is hinged with the free end of the second spanner, a positioning rotating shaft along the vertical direction is arranged on the first spanner, a positioning hole matched with the positioning rotating shaft is arranged on the supporting plate, and a first limiting part and a second limiting part for limiting the rotation of the first spanner are also arranged on the supporting plate.
As a preferable mode of the utility model, the drill bit comprises a connecting part connected with the down-the-hole hammer and a drill bit body connected with the connecting part, a plurality of hard alloy drill grains are distributed on the drill bit body, the lower end face of the drill bit body is a mounting spherical surface, the hard alloy drill grains are divided into a plurality of groups of drill grains, and each drill grain in each group of drill grains is distributed at the same height.
After the technical scheme of the utility model is adopted, when the drill bit is required to slightly move in the left-right direction in the punching process, the supporting plate can be driven to move on the base plate through the moving mechanism, so that the adjustment of the drill rod and the drill bit in the left-right direction is realized, the whole pit drilling machine does not need to be moved, the operation is more convenient, hard objects can be drilled in a proper position through the slightly moving of the drill bit, the punching efficiency is improved, and the service life of the drill bit is ensured.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic diagram of the matching structure of the guide rail, the slider and the driving mechanism in the present utility model;
FIG. 3 is a schematic view of a disassembly mechanism according to the present utility model;
FIG. 4 is a schematic view of a drill bit according to the present utility model;
FIG. 5 is a schematic diagram of a rotary power head according to the present utility model;
FIG. 6 is an enlarged view (partially cut away) of FIG. 1 at A;
in the figure:
10-frame 11-base plate
12-support plate 13-chute
14-slide rail 15-screw nut
16-hand wheel 17-screw rod
18-air compressor 19-traveling system
20-guide rail 21-lifting cylinder
22-sprocket 23-chain
24-slider 30-rotary power head
31-first chamber 32-second chamber
33-rotary motor 35-connecting pipe
36-through hole 41-drill rod
42-Down-the-hole impactor 43-drill bit
431-bit body 432-connection
433-drilling 44-conical protective cover
50-positioning column
51-hydro-cylinder 52-location stabilizer blade
60-folding cylinder 61-first hinge shaft
62-second hinge shaft 70-lubricating oil tank
71-liquid level 72-oil guide pipe
73-adjusting rod 731-adjusting cone head
74-drainage tube 741-conical seat
75-first stop nut 76-second stop nut
77-oil guide hole 78-oil seal
79-booster orifice 80-trachea
81-lubricating pipe section 91-first wrench
92-first limit portion 93-second limit portion
94-positioning rotating shaft 95-rotating oil cylinder
96-second spanner
Detailed Description
For further explanation of the technical scheme of the present utility model, the following is described in detail with reference to the accompanying drawings.
Referring to fig. 1 to 5, the pit boring machine comprises an excavator running gear, a guide rail 20 arranged on the excavator running gear, a sliding block 24 arranged in the guide rail 20, a driving mechanism for driving the sliding block 24 to move up and down, a rotary power head 30 installed on the sliding block 24, an air compressor 18, a drill rod 41 connected to the rotary power head 30, a down-hole hammer 42 connected to the drill rod 41 and a drill bit 43 connected to the down-hole hammer 42, wherein the guide rail 20 is arranged in the vertical direction, the guide rail 20 is two, the two guide rails 20 are arranged in the vertical direction, the sliding block 24 is arranged between the two guide rails 20, the air compressor 18 is connected with the rotary power head 30 through an air pipe 80, the excavator running gear comprises a frame 10, a running system 19 and a rotary platform rotatably arranged on the frame 10, the running system 19 comprises a crawler wheel and a power system of the excavator, the structures are introduced in the existing excavator, the parts on the rotary platform of the excavator are removed on the basis of the existing excavator, the guide rail 20 is arranged in the vertical direction, the air compressor 18 can be directly used for driving the engine 18 from the engine, and the well can be used for further detailed description.
One of the improvement points of the utility model is that: the rotary platform comprises a base plate 11 rotatably mounted on a traveling system 19, a support plate 12 slidably provided on the base plate 11, and a moving mechanism for driving the support plate 12 to move in the left-right direction of the base plate 11, and the guide rail 20 is provided on the support plate 12. With this configuration, the forward and backward displacement of the rotary power head 30 can be achieved by the forward or backward movement of the crawler wheel, and the left and right displacement of the rotary power head 30 can be achieved by the moving mechanism.
As a preferred mode of the present utility model, the moving mechanism includes a screw rod 17 rotatably disposed on the base plate 11, a screw rod nut 15 disposed on the screw rod 17, and a hand wheel 16 for driving the screw rod 17 to rotate, wherein the screw rod 17 is disposed in a horizontal direction, the screw rod nut 15 is fixedly connected with the support plate 12, a sliding groove 13 is disposed on the base plate 11, a sliding rail 14 is disposed on the support plate 12 corresponding to the sliding groove 13, and the sliding groove 13 extends in a left-right direction of the base plate 11. With this structure, the support plate 12 can be slightly moved in the left-right direction along with the lead screw nut 15 by turning the hand wheel 16.
As a preferred mode of the present utility model, the excavator further comprises a plurality of positioning columns 50 fixed on the support plate 12, the positioning columns comprise an oil cylinder 51 arranged along a vertical direction and positioning legs 52 arranged on a piston rod of the oil cylinder 51, the oil cylinder 51 is connected to a power system of the excavator, the plurality of positioning columns 50 comprise a first positioning column, a second positioning column, a third positioning column and a fourth positioning column, the first positioning column and the second positioning column are arranged at the front end of the support plate 12 and are respectively arranged at the left side and the right side of the support plate 12, and the third positioning column and the fourth positioning column are arranged at the rear end of the support plate 12 and are respectively arranged at the left side and the right side of the support plate 12. By adopting the structure, the expansion and contraction of the positioning support legs 52 are adjusted through the oil cylinders 51, so that the device is suitable for uneven ground, the pit drilling machine is stable and cannot slip, and stable and efficient drilling is ensured.
The utility model also makes a second improvement on the existing pit drilling machine: the rotary power head 30 comprises a shell, a rotary motor 33 arranged in the shell and a connecting pipe 35 connected to the output end of the rotary motor 33, a partition 34 is arranged in the shell, the partition 34 divides the inner cavity of the shell into a first cavity 31 and a second cavity 32 which are isolated from each other, the rotary motor 33 is arranged in the first cavity 31, an air pipe 80 is communicated with the second cavity 32, the output shaft of the rotary motor 33 extends into the second cavity 32 from the first cavity 31, the connecting pipe 35 is communicated with the second cavity 32, the drill rod 41 is a hollow drill rod, and the inner cavity of the drill rod 41 is communicated with the connecting pipe 35. The utility model also comprises a lubricating oil tank 70, wherein liquid lubricating oil is filled in the lubricating oil tank 70, for example, a mixed liquid of 95 weight percent of diesel oil and 5 weight percent of engine oil is adopted in the liquid lubricating oil tank, a first through hole and a second through hole are formed in the lubricating oil tank, the first through hole and the second through hole are positioned above the liquid level 71 of the lubricating oil, an air pipe 80 penetrates through the first through hole and penetrates out of the second through hole, a lubricating pipe section 81 is formed in the lubricating oil tank 70, a radially arranged mounting hole is formed in the lubricating pipe section 81, an oil guide pipe 72 is penetrated in the mounting hole, an oil guide hole 77 is formed in the oil guide pipe section 72, the oil guide hole 77 is communicated with the lubricating pipe section 81, the lubricating pipe section 81 is arranged in the horizontal direction, the oil guide pipe 72 is arranged in the vertical direction, a first limit nut 75 is arranged at the lower end of the oil guide pipe 72, a second limit nut 76 is arranged at the upper end of the oil guide pipe 72, and the first limit nut 75 and the second limit nut 76 are connected at two ends of the oil guide 72 in a threaded connection mode and are used for limiting the sliding of the oil guide 72. The utility model further comprises a drainage tube 74 penetrating through the lower end of the oil guide tube 72 and an adjusting rod 73 penetrating through the upper end of the oil guide tube 72, wherein the upper end of the drainage tube 74 is in threaded connection with the lower end of the oil guide tube 72, a conical seat 741 is arranged at the upper end of the drainage tube 74, an adjusting cone head 731 matched with the conical seat 741 is arranged at the lower end of the adjusting rod 73, the adjusting rod 73 is connected into the oil guide tube 72 in a threaded connection mode, the adjusting rod 73 extends out of the second limiting nut 76, and the relative position of the adjusting cone head 731 and the conical seat 741 can be adjusted by rotating the adjusting rod 73, so that the oil inlet quantity is adjusted. In the utility model, an oil seal 78 is arranged between the oil guide pipe 72 and the mounting hole, a pressurizing hole 79 communicated with the lubricating oil tank 70 is arranged on the lubricating pipe section 81, the pressurizing hole 79 can be arranged at the oil seal 78, and can be arranged at other positions of the lubricating pipe section 81, and the pressurizing hole is used for applying certain pressure to the lubricating oil tank 70, so that lubricating oil enters the lubricating pipe section 81 from the drainage pipe 74 through the oil guide hole 77 and enters the down-the-hole hammer 42 along with air. With this structure, the compressed air can carry a small amount of lubricating oil and is conveyed to the down-the-hole hammer 42 to lubricate the down-the-hole hammer 42, thereby improving the working efficiency and the service life of the down-the-hole hammer 42.
As a preferred mode of the utility model, the connecting pipe 35 extends out of the shell, the conical protective cover 44 with a downward opening is arranged on the outer wall of the connecting pipe 35, dust or broken stone can be blocked by adopting the conical protective cover 44, the dust or broken stone is greatly reduced from entering the rotary power head 30, and the service life of equipment is prolonged. Because the air flow used for drilling can carry impurities such as broken stones to rush upwards in the drilling process, the conical protective cover 44 can block the impurities and disperse the air flow, thereby effectively protecting the rotary power head 30 and avoiding the impurities from entering the rotary power head 30.
As a preferred mode of the present utility model, the lower end of the guide rail 20 is hinged on the support plate 12 through a first hinge shaft 61, and further comprises a folding cylinder 60, the cylinder body of the folding cylinder 60 is hinged on the support plate 12, the piston rod of the folding cylinder 60 is hinged on the guide rail 20 through a second hinge shaft 62, the second hinge shaft 62 is located above the first hinge shaft 61, and the first hinge shaft 61 and the second hinge shaft 62 are arranged in parallel. By adopting the structure, the guide rail 20 can be folded from the vertical state to the inclined state, the height of the whole pit drilling machine is reduced, and the pit drilling machine can conveniently walk in a narrower space.
As a preferred mode of the present utility model, the driving mechanism includes a lift cylinder 21 disposed in a vertical direction, a sprocket 22 disposed at an upper end of the lift cylinder 21, and a chain 23 mounted on the sprocket 22, one end of the chain 23 is fixed on the guide rail 20, and the other end is fixedly connected with the slider 24. Lifting of the rotary power head 30 is achieved by lifting of the lift cylinder 21, and finally lifting of the drill bit 43 is achieved.
The utility model also provides a third improvement on the existing pit drilling machine, the pit drilling machine further comprises a rod detaching mechanism for assisting in detaching a drill rod, the rod detaching mechanism comprises a first spanner 91, a second spanner 96 and a rotating oil cylinder 95 for driving the second spanner 96 to rotate, the first spanner 91 and the second spanner 96 are hinged on the supporting plate 12, the rotating oil cylinder 95 is connected to a power system of the excavator, a cylinder body of the rotating oil cylinder 95 is hinged with the supporting plate 12, a piston rod of the rotating oil cylinder 95 is hinged with the free end of the second spanner 96, a positioning rotating shaft 94 in the vertical direction is arranged on the first spanner 91, a positioning hole matched with the positioning rotating shaft 94 is arranged on the supporting plate 12, the positioning hole can limit the positioning rotating shaft 94 to move in the radial direction, and a first limiting part 92 and a second limiting part 93 for limiting the rotation of the first spanner 91 are further arranged on the supporting plate 12, and the first limiting part 92 and the second limiting part 93 are respectively arranged on two sides of the free end of the first spanner 91. When the two connected drill rods 41 are disassembled, the first wrench 91 is clamped into one drill rod positioned below, the second wrench 96 is clamped into one drill rod positioned above, the first wrench 91 realizes positioning of the lower drill rod, the second wrench 96 is driven to rotate through expansion and contraction of the rotating oil cylinder 95, so that the two drill rods 41 are unscrewed, the second wrench 96 is removed from the drill rods 41, and the drill rods can be disassembled by manually rotating the drill rods. The rod detaching mechanism can be directly used for the drilling machine for drilling the down-the-hole in the prior art.
As a preferred mode of the present utility model, the drill bit 43 includes a connection portion 432 connected to the down-the-hole hammer 42, and a bit body 431 connected to the connection portion 432, wherein a plurality of cemented carbide drill grains 433 are arranged on the bit body 431, the lower end surface of the bit body 431 is a mounting sphere, the cemented carbide drill grains 433 are divided into a plurality of groups of drill grains, each drill grain in each group of drill grains is arranged at the same height, and from bottom to top, the number of drill grains in each group of drill grains is gradually increased, that is, the number of drill grains at the lowest end of the mounting sphere is minimum. By adopting the structure, the drill grains at the lowest end of the installation sphere are firstly contacted with hard rock or soil layer, and the rock or soil layer is firstly perforated to form holes, so that the drill bit is rapidly pushed, and in the drilling process of the drill bit, the rock or soil layer is crushed by utilizing peripheral drill grains, so that the crushing efficiency is improved.
The form of the present utility model is not limited to the illustrations and examples, and any person who performs a similar idea of the present utility model should be regarded as not departing from the scope of the patent of the utility model.
Claims (7)
1. The utility model provides a boring machine, including excavator running gear, set up the guide rail on the excavator running gear, dispose the slider in the guide rail, a actuating mechanism for driving the slider reciprocates, install the gyration unit on the slider, the air compressor machine, connect the drilling rod on the gyration unit, connect the down-the-hole impactor on the drilling rod and connect the drill bit on the down-the-hole impactor, the guide rail sets up along vertical direction, the air compressor machine passes through the trachea and is connected with the gyration unit, with excavator running gear's walking direction is the fore-and-aft direction, excavator running gear includes the frame, traveling system and rotationally set up the revolving platform on the frame, its characterized in that: the rotary platform comprises a base plate rotatably arranged on the travelling system, a supporting plate slidingly arranged on the base plate and a moving mechanism for driving the supporting plate to move along the left-right direction of the base plate, and the guide rail is arranged on the supporting plate;
the moving mechanism comprises a screw rod rotationally arranged on the base plate, a screw rod nut arranged on the screw rod and a hand wheel for driving the screw rod to rotate, wherein the screw rod nut is fixedly connected with the supporting plate, a sliding groove is arranged on the base plate, a sliding rail is arranged on the supporting plate corresponding to the sliding groove, and the sliding groove extends along the left-right direction of the base plate;
the rotary power head comprises a shell, a rotary motor arranged in the shell and a connecting pipe connected to the output end of the rotary motor, wherein a partition plate is arranged in the shell and divides the inner cavity of the shell into a first cavity and a second cavity which are mutually isolated, the rotary motor is arranged in the first cavity, the air pipe is communicated with the second cavity, the output shaft of the rotary motor stretches into the second cavity from the first cavity, the connecting pipe is communicated with the second cavity, the drill rod is a hollow drill rod, and the inner cavity of the drill rod is communicated with the connecting pipe;
still including the lubricating oil tank, be equipped with liquid lubricating oil in the lubricating oil tank, be equipped with first through-hole and second through-hole on the lubricating oil tank, first through-hole and second through-hole are located above the liquid level of lubricating oil, the trachea penetrates and wears out from the second through-hole in first through-hole, and form the lubricating pipe section in the lubricating oil tank, set up along radial mounting hole that sets up in the lubricating pipe section, wear to be equipped with in the mounting hole and lead oil pipe, be equipped with the oil duct on leading oil pipe, oil pipe and lubricating pipe section intercommunication, lubricating pipe section sets up along the horizontal direction, it sets up along vertical direction to lead oil pipe, oil pipe's lower extreme is equipped with first spacer nut, oil pipe's upper end is equipped with second spacer nut, first spacer nut is located lubricating pipe section's below, second spacer nut is located lubricating oil tank's top, still include wear to establish the drainage tube at oil pipe's lower extreme and wear to establish at oil pipe's upper end's adjusting lever, the upper end and oil pipe's lower extreme threaded connection, be equipped with the taper seat at the upper end of drainage tube, be equipped with the adjustment taper seat complex adjustment cone head, the adjusting lever is with in the mode of adjusting lever with threaded connection, and stretch out in the lubricating pipe section with the second spacer nut.
2. The pit drilling machine of claim 1, wherein: the positioning columns comprise an oil cylinder arranged in the vertical direction and positioning support legs arranged on a piston rod of the oil cylinder, the positioning columns comprise a first positioning column, a second positioning column, a third positioning column and a fourth positioning column, the first positioning column and the second positioning column are arranged at the front end of the supporting plate and are respectively arranged at the left side and the right side of the supporting plate, and the third positioning column and the fourth positioning column are arranged at the rear end of the supporting plate and are respectively arranged at the left side and the right side of the supporting plate.
3. The pit drilling machine of claim 1, wherein: the connecting pipe extends out of the shell, and a conical protective cover with a downward opening is arranged on the outer wall of the connecting pipe.
4. The pit drilling machine of claim 1, wherein: the lower end of the guide rail is hinged on the support plate through a first hinge shaft, the folding device further comprises a folding oil cylinder, a cylinder body of the folding oil cylinder is hinged on the support plate, a piston rod of the folding oil cylinder is hinged on the guide rail through a second hinge shaft, and the second hinge shaft is located above the first hinge shaft.
5. The pit drilling machine of claim 1, wherein: the driving mechanism comprises a lifting oil cylinder arranged in the vertical direction, a chain wheel arranged at the upper end of the lifting oil cylinder and a chain erected on the chain wheel, wherein one end of the chain is fixed on the guide rail, and the other end of the chain is fixedly connected with the sliding block.
6. The pit drilling machine of claim 1, wherein: the device comprises a support plate, a first wrench, a second wrench, a rotating oil cylinder, a cylinder body, a piston rod and a free end, wherein the support plate is hinged to the cylinder body, the free end of the second wrench is hinged to the piston rod, the first wrench is provided with a positioning rotating shaft in the vertical direction, the support plate is provided with a positioning hole matched with the positioning rotating shaft, and the support plate is further provided with a first limiting part and a second limiting part for limiting the rotation of the first wrench.
7. The pit drilling machine of claim 1, wherein: the drill bit comprises a connecting part connected with the down-the-hole hammer and a drill bit body connected with the connecting part, wherein a plurality of hard alloy drill grains are distributed on the drill bit body, the lower end face of the drill bit body is a mounting spherical surface, the hard alloy drill grains are divided into a plurality of groups of drill grains, and each drill grain in each group of drill grains is distributed at the same height.
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| CN201811106517.3A CN109057710B (en) | 2018-09-21 | 2018-09-21 | Pit drilling machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811106517.3A CN109057710B (en) | 2018-09-21 | 2018-09-21 | Pit drilling machine |
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| CN109057710A CN109057710A (en) | 2018-12-21 |
| CN109057710B true CN109057710B (en) | 2024-04-16 |
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|---|---|---|---|---|
| CN109915031A (en) * | 2019-04-19 | 2019-06-21 | 南昌航空大学 | A kind of antiswing device for drilling bucket |
| CN110805400B (en) * | 2019-11-09 | 2021-12-07 | 大畏机床(江苏)有限公司 | Positioning device for petroleum drilling machine |
| CN111520067B (en) * | 2020-04-26 | 2022-03-22 | 山东省高速路桥养护有限公司 | Drilling equipment for drilling holes in planted bars |
| CN111608577A (en) * | 2020-05-29 | 2020-09-01 | 江苏帝旺建设有限公司 | Linear engineering rock surveying equipment and surveying method |
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| CN109057710A (en) | 2018-12-21 |
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