CN103477014A - Rotation unit, rock drilling unit and method for rock drilling - Google Patents
Rotation unit, rock drilling unit and method for rock drilling Download PDFInfo
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- CN103477014A CN103477014A CN2012800186419A CN201280018641A CN103477014A CN 103477014 A CN103477014 A CN 103477014A CN 2012800186419 A CN2012800186419 A CN 2012800186419A CN 201280018641 A CN201280018641 A CN 201280018641A CN 103477014 A CN103477014 A CN 103477014A
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- 238000005553 drilling Methods 0.000 title claims abstract description 77
- 239000011435 rock Substances 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims abstract description 9
- 238000009527 percussion Methods 0.000 claims description 20
- 230000005540 biological transmission Effects 0.000 claims description 13
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 239000013013 elastic material Substances 0.000 claims description 2
- 230000004323 axial length Effects 0.000 claims 1
- 238000013461 design Methods 0.000 description 30
- 238000005461 lubrication Methods 0.000 description 8
- 239000003921 oil Substances 0.000 description 8
- 238000013016 damping Methods 0.000 description 5
- 238000012544 monitoring process Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 241001074085 Scophthalmus aquosus Species 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000003313 weakening effect Effects 0.000 description 2
- 229910000897 Babbitt (metal) Inorganic materials 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011217 control strategy Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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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
- E21B3/00—Rotary drilling
- E21B3/02—Surface drives for rotary drilling
- E21B3/022—Top drives
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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
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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
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/20—Drives for drilling, used in the borehole combined with surface drive
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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
- E21B7/025—Rock drills, i.e. jumbo drills
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- 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)
- Earth Drilling (AREA)
Abstract
The invention relates to a rotation unit, a rock drilling unit and a method for rock drilling. The rotation unit comprises a main shaft (17) that is rotated around its longitudinal axis by means of a rotating motor (16). The main shaft is supported to a body (23) of the rotation device (7) slidingly in the axial direction. This slide property is utilized when connection threads of drilling equipment (9) and drilling components (10) comprised by it are connected.
Description
Technical field
The present invention relates to a kind of rotary unit bored for rock, this rotary unit does not have percussion mechanism.The purpose of rotary unit is to produce the required rotation of drilling equipment that will be connected to rotary unit, at the outermost end place of described drilling equipment, exists for smashing the drill bit of rock.
In addition, the present invention relates to a kind of a kind of unit and method of boring for rock of creeping into.In the preamble of the application's independent claims, the field of the invention is described in further detail.
Background technology
By means of various rock drilling machines, can in rock, hole.Utilization combines to be impacted and the method for rotation (percussion drilling) can be carried out and creeps into, or creep into can be based on rotation only and without impact function (rotary drilling).In addition, can according to percussion mechanism during creeping into whether in the outside of boring or come impact to creep into classification in boring.During the outside when percussion mechanism in boring, creep into and be commonly called top hammer and creep into, and when percussion mechanism is in boring, creep into and be commonly called down-the-hole and creep into (DTH).In the top hammer boring machine, percussion mechanism and whirligig are incorporated in an entity, and, in rotary drilling machine and DTH boring machine, have the rotary unit that there is no percussion mechanism fully.The application relates to such rotary unit without percussion mechanism and use thereof particularly.
This rotary unit comprises the main shaft around its longitudinal axis rotation.Revolving force is produced by gear train by the rotation motor that is connected to main shaft.Along with creeping into, carry out, the pipes that creep into are connected to drilling equipment more, and correspondingly, after boring has completed and while starting to creep into new boring, the described pipe that creeps into is disconnected connection.Creep into pipe and be provided with connecting thread, so they need so-called Float principal axis, this Float principal axis allows screw thread to be tightened and to unscrew, and moves without accurately control feeding simultaneously.Float principal axis can be realized required the moving axially that the pitch due to connecting thread produces.Nowadays the Float principal axis used is separate unit, and it is connected to rotary unit first before creeping into pipe.Yet such independent floating main axle unit has been proved the problem of the durability that has caused relevant devices.
Summary of the invention
The purpose of this invention is to provide a kind of novel and improved rotary unit bored for rock, rock brill unit and method.
Rotary unit according to the present invention is characterised in that, main shaft is slidably supported to body in the axial direction.
Bore unit according to rock of the present invention and be characterised in that, the main shaft of whirligig is slidably supported to body in the axial direction.
The method according to this invention is characterised in that, when the parts by drilling equipment and drilling equipment are connected and disconnect, the main shaft that described method allows rotary unit axially moves with respect to the body of rotary unit.
Design is, the main shaft bearing of rotary unit is arranged on body, the predetermined length that moves axially that makes this main shaft to slide one and to allow with respect to body.
Therefore, advantage is that moving axially of main shaft allows the connecting thread of drilling equipment to be unscrewed and tighten, and do not have the needs of arranging any independently Float principal axis unit in drilling equipment.In rotary unit, provide sliding property allow structure than before more firmly and lasting.
The design of an embodiment is that main shaft is being supported in the radial direction body by means of fore bearing and in the part of rear end by means of end bearing in the part of front end.For example, two bearings are all sliding bearings and can be made by suitable sliding bearing metal.This structure allows the axial distance between bearing is arranged to relatively long.Owing to this point, the lateral force that is delivered to main shaft from drilling equipment during creeping into can be received the firmly body of rotary unit well.In addition, improve the durability of structure by fore bearing and end bearing being arranged in to chance in the oil lubrication space.
The design of embodiment is, main shaft is arranged on body by means of fore bearing and end bearing bearing, and the axial distance between these bearings is large with respect to the diameter of main shaft.Bearing has the axially mounting distance, and main shaft has the supporting diameter in the position of bearing.Result according to the observation, the ratio of a supporting diameter of the maximum in length of support and supporting diameter is at least during 3:1, the supporting of main shaft is especially firmly.Supporting diameter at fore bearing and end bearing place can be that equate or unequal.Length of support is the size between the functional mid point of fore bearing and end bearing.
The design of embodiment is, the transmission member between gear train and main shaft comprises sliding component, and this sliding component allows moving axially of main shaft, and is passed to gear train without any axial force.When not existing from the main shaft to the gear train or during the axial load of rotation motor orientation, the durability of rotary unit is good.
The design of embodiment is that revolving force is passed to main shaft by the part of the rear end from main shaft.There are the more spaces for transmission member in rear end at main shaft, thereby the size of transmission member is compared freer with revolving force by the solution of the part transmission of the front end from main shaft with location.
The design of embodiment is that rotation motor and gear train are positioned as the extension of the rear end of main shaft.Then, rotation motor, gear train and main shaft are positioned on identical axial line successively.Therefore, the rotary unit of seeing in a lateral direction can be rather narrow.Although the length on a side of the rear end of rotary unit increases,, this does not show any infringement to structure or operation.In addition, rotation motor and gear train can easily and promptly be separated and be replaced and without the module of the remainder of dismounting rotary unit structure by new module.In the rear end of rotary unit, there are the many spaces for the treatment of module.If expectation affect the performance of rotary unit, the module that in the rear end setting of rotary unit, has different capacity and other performance is also feasible.
The design of embodiment is, the periphery of main shaft has at least one feeding flange, and this feeding flange is arranged in order to transmitter shaft between body and main shaft to centripetal force.The feeding flange has the axial support surface that participates in transmitting axial force.In addition, body has sliding space in the position of feeding flange.This sliding space is the annular space around the elongation of main shaft, has the end that limits in the axial direction sliding space.Front-end and back-end comprise the stayed surface that can participate in transmitting axial force.
The design of embodiment is, feeding flange and being positioned in the part of front end of main shaft at the sliding space of the position of feeding flange.Then, axial force is passed between main shaft and body near the front end ground of rotary unit and drilling equipment as far as possible.Therefore axial force is not to the parts stress application in rear portion that is positioned at of the rear portion of main shaft or rotary unit.These aspects are also preferred with regard to the durability of rotary unit.
The design of embodiment is, the feeding flange is positioned in the sliding space on the front side of fore bearing of supports main shaft.Therefore, when feeding during towards drilling direction, fore bearing transmits the axial force between the rear end of feeding flange and sliding space.Fore bearing is as the journal bearing of main shaft and as cod.Fore bearing is can accept the sliding bearing of great axial force during creeping into.Fore bearing can be arranged in sliding space in the axial direction slidably, thereby it can be arranged in company with main axle moving.In addition, sliding space can be oil lubrication, and this improves the durability of fore bearing even largelyr.
The design of embodiment is that the structure of rotary unit comprises axial damper.Axially therefore damper is integrated into a part that forms rotary unit.Axially damper can affect main shaft and vibration, impact, shock wave and other axial stress be passed to main shaft from drilling equipment for weakening.Axial damper so significantly reduces and is directed to vibration and the stress wave of body and body part from drilling equipment by main shaft, thereby less stress is directed to the parts at axial damper rear.In addition, axially damper also can reduce to be directed on the front side of damper the i.e. stress of the parts on a side of drilling equipment at least to a certain extent.
The design of embodiment is that axially damper comprises at least one end damper of the end that is arranged in sliding space.Axially damper can be included in the rearward end damper that carries out damping on drilling direction and the leading section damper that carries out damping on Return-ing direction.In some cases, damper can only comprise the rearward end damper.The advantage of end damper is that its structure is simple and cost is low and need a small amount of maintenance.
The design of embodiment is that the end damper is the ring-shaped article consisted of compression elastic material.The end damper can be made by the polymeric material of the polyurethane such as suitable.Such damper has been proved extremely wear-resisting.
The design of embodiment is that axially damper comprises the damper element of at least one pressure medium operated.Axial damper like this can have the operating pressure space, and the pressure medium such as hydraulic fluid on the operating pressure surface of impact in the operating pressure space can be directed in this operating pressure space.For axial damper, comprise that one or more is arranged in order to damping piston direct or that borrow rib to affect in the axial direction main shaft in suitable middleware is further feasible.The pressure of pressure medium can be directed to damping piston, the damping of the expectation in the extreme position moved in order to the slip that is created on main shaft.
The design of embodiment is, at the front end place of the main shaft of rotary unit, has connecting elements, for rigidity, installs in the axial direction.Therefore, drilling equipment is installed on main shaft, and being slidably connected without any axial sensing.Connecting elements can comprise connecting thread, creeps into the parts such as pipe, adapter and can be attached to described connecting thread.This embodiment reduces to be directed to the load be connected between main shaft and drilling equipment.
The design of embodiment is that the periphery of the rear end of main shaft comprises for transmitting one group of axial notch of revolving force.In addition,, there is turnbarrel in the rear end around main shaft, the one group of axial notch that comprises correspondence interior week of this turnbarrel.Therefore, between the inner surface of the external surface of the rear end of main shaft and turnbarrel, exist and allow the axially movable transmission of main shaft to connect.Turnbarrel utilizes cod and bearing is arranged on body, thereby does not have axial force to be passed to gear train by transmission member from main shaft.These features are preferred with regard to the durability of structure.
The design of embodiment is that gear train is planetary gear.This planetary gear can be physically quite little and be also short in the axial direction, thereby easily is arranged in the rear end of main shaft.
The design of embodiment is, main shaft comprises and is arranged on identical axial line and is connected to the first main shaft portion and the second main shaft portion each other.Connection between main shaft portion is axial stiffness.On the periphery of the rear end of the first main shaft portion, there is one group of groove, by means of described one group of groove, revolving force can be passed to main shaft.The front end of the second main shaft portion and then comprise for being attached to the connecting thread of drilling equipment.Main shaft is by means of the fore bearing of the first main shaft portion only and end bearing and bearing is arranged on body.Bearing is arranged by the axial distance with apart from large as far as possible each other, thereby they accept transverse load well.In addition, the feeding flange can be arranged the standing part as the second main shaft portion.Alternatively, the feeding flange can be the separate piece be arranged between main shaft portion, for example collar flange.
The design of embodiment is, in fore bearing and part between end bearing, comprises around main shaft and the pressure medium space that is connected with the feeding passage of the pressure medium of compressed air etc.Main shaft has one or more passage, and described passage is for being directed to pressure medium the central passage of main shaft and further along main shaft, guiding to and will be connected to the drilling equipment of main shaft from pressure space.Will be around pressure space and the bearing space isolation of main shaft by shaft seal.So pressure medium keeps the lubricating oil separation with bearing space.
The design of embodiment is, rock bores unit and comprises balladeur train, and this balladeur train moves on feed beam by means of feed arrangement.The body of rotary unit is fixedly attached to balladeur train.Therefore,, always along with balladeur train moves, there are not the body part of arranging slidably simultaneously in rotary unit and body thereof in rotary unit.
The design of embodiment is, rotary unit is intended to for rotary drilling, in rotary drilling, only creeps into by the effect generation of rotation and centripetal force without any percussion mechanism.
The design of embodiment is, rotary unit is intended to creep into for DTH, and in DTH creeps into, rotary unit is in the relative end sections of drilling equipment with percussion mechanism.Therefore, do not have percussion mechanism in rotary unit, still, percussion mechanism is connected with drilling equipment.Drill bit directly is attached to percussion mechanism usually.
The design of embodiment is, the axial location of monitoring main shaft, and this information can be transferred to control module, and this control module is controlled at rock and bores the operating means that creeps into pipe in unit.In addition, in controlling the tightening and unscrew of screw thread, can utilize the information about the position of main shaft.By means of one or more sensor or measurement mechanism, can monitor the position of main shaft.
The design of embodiment is monitor the axial location of main shaft, and this information to be used as supplementary in the centripetal force be controlled at during creeping into.
The design of embodiment is, rotary unit comprises at least one axial damper and for the device of the axial location of monitoring main shaft.Can be used to monitor the state of axial damper about the positional information of main shaft.Control module can comprise the control strategy for Stateful Inspection.Axially damper can comprise one or more damper element of being made and for example being had 10% functional compressing area by compressible material.By means of positional information, for example, in the situation that the damper element has permanently lost its elasticity and resilience or impaired in another way, can observe planned compression and whether be exceeded.Owing to this embodiment, can observe in time the infringement of axial damper.
The design of embodiment is that main shaft is one and integrates the axle part.The feeding flange can be the non-removable part of the integration of main shaft.Alternatively, the feeding flange can be the parts that form independently, flange for example, and it can be fixedly attached to the axle part.
The design of embodiment is that rotation motor is hydraulic motor.
The design of embodiment is that rotation motor is motor.
The design of embodiment is, rotary unit does not comprise gear train, but revolving force is passed to main shaft by means of other transmission member.Can control in general and accurate mode rotating speed and the moment of torsion of rotation motor.Rotation motor is the type that is called as direct drive motor.The motor of the type exists as hydraulic operation motor and electro-motor.Owing to saving gear train from rotary unit, will be by the less parts of maintenance and sustain damage so exist.In addition, can make littlely by rotary unit.
The design of embodiment is that transmission member is provided with for promoting the mobile member of lubrication oil in lubricated space.Therefore, rotation hub or turnbarrel for example can be provided with the screw shaped member, and this screw shaped member produces flowing of lubrication oil by effect in rotary moving.By this way, can improve the durability of transmitting surface, transferring elements and bearing.
The accompanying drawing explanation
In the accompanying drawings, will some embodiments of the present invention be described in more detail, wherein
The schematically illustrated rock borer that is provided with rotary unit of Fig. 1, this rotary unit is for making drilling equipment around its longitudinal axis rotation;
Fig. 2 is illustrated schematically in the principle that the DTH of the rotary unit in rock borer creeps into and operates;
Fig. 3 schematically and greatly illustrates the principle according to rotary unit of the present invention simplifiedly;
Schematically illustrated the second rotary unit according to the present invention of Fig. 4 and Fig. 5 is at two of main shaft different axial limit position Zhong partial cross section top views.
Fig. 6 schematically shows the top view of another rotary unit, and in this rotary unit, main shaft is integral part thereof and passes through direct drive motor and rotate.
In the accompanying drawings, for clarity, some embodiments of the present invention are shown simplifiedly.In the accompanying drawings, part like similar Reference numeral representation class.
The specific embodiment
Fig. 1 illustrates rock borer 1, and this rock borer 1 comprises the removable carrier 2 that is provided with drilling rod 3.Suspension rod 3 is provided with and bores rock unit 4, and this brill rock unit 4 comprises feed beam 5, feed arrangement 6 and rotary unit 7.Rotary unit 7 can be supported to balladeur train 8, or alternatively, rotary unit can comprise slipper or similar supporting member, and by means of described supporting member, rotary unit is supported to feed beam 5 movably.Rotary unit 7 can be provided with drilling equipment 9, and this drilling equipment 9 can comprise that interconnective one or more creeps into pipe 10 and at the drill bit 11 at the outermost end place of drilling equipment.The unit 4 that creeps into of Fig. 1 is intended to for rotary drilling, in rotary drilling, rotary unit 7 is for making drilling equipment 9 rotate on direction R around its Y line, simultaneously, rotary unit 7 passes through centripetal force F feeding on drilling direction A by means of feed arrangement 6 with the drilling equipment 9 that is connected to rotary unit 7.Therefore, drill bit is because rock is smashed in the effect of rotation R and centripetal force F, and 12 formation of holing.When boring 12 during the drilled degree of depth that proceeds to expectation, by means of feed arrangement 6, can be on Return-ing direction B drilling equipment 9 12 be pulled out from holing, and can dismantle drilling equipment by unscrew the connecting thread crept between pipe 10 by means of rotary unit 7.The main shaft of rotary unit 7 is provided with the sliding function of the connecting thread for tightening and unscrew drilling equipment.
Fig. 2 illustrates second and creeps into unit 4, and this second difference of creeping into unit of creeping in unit and Fig. 1 is, drilling equipment 9 is provided with percussion mechanism 13.Percussion mechanism 13 is the relative end at drilling equipment 9 with respect to rotary unit 7 therefore.During creeping into, percussion mechanism 13 is in boring, and drill bit 11 can be directly connected to percussion mechanism 13.Rotary unit 7 can be comprised of module, thereby it can have basic module 14 and gear train module 15 and rotation motor module 16, and this basic module 14 has main shaft and sliding support thereof.Module can be disposed on identical axial line successively.
Fig. 3 illustrates a possible embodiment of rotary unit 7 in very concise and to the point mode.Rotary unit 7 comprises main shaft 17, and the front end of this main shaft 17 comprises the connecting thread 18 for attached drilling equipment 9.In the part of the opposite end of main shaft 17, can there is one group of axial notch 19, revolving force is passed to described one group of axial notch 19 by turnbarrel 20.Turnbarrel 20 has one group of corresponding axial notch, thereby main shaft 17 can slide in the axial direction with respect to turnbarrel 20.Turnbarrel 20 can be mounted in the axial direction and fix by bearing.Revolving force can be passed to turnbarrel 20 from one or more gear train 15 that is connected to rotation motor 16.As shown in FIG., revolving force can be passed to main shaft from a plurality of gear trains 15.Then, gear train 15 can be arranged on the opposite side of main shaft 17, in order to eliminate horizontal loading.
See in Fig. 3, can utilize end bearing 21 and fore bearing 22 bearings that main shaft 17 is installed.Bearing the 21, the 22nd, sliding bearing, thereby they allow the axially-movable S of main shaft 17. Bearing 21,22 is arranged on a large axially mounting distance L ground each other with distance, thereby bearing 21,22 can accept to be directed to the transverse cutting lotus of main shaft well.The bearing 21,22 be positioned to away from each other provides good support for main shaft.In the position of bearing, main shaft has diameter D1 and D2, depends on embodiment, and diameter D1 and D2 can be that equate or slightly unequal.The ratio of the larger diameter in the length of support L between the position of bearing and diameter D1, D2 is 3:1 at least.The positional representation of bearing be the function mid point of bearing.
Fig. 3 further illustrates stayed surface, and on described stayed surface, centripetal force F is passed to main shaft 17 from the body 23 of whirligig 7.Main shaft 17 can comprise having for uploading the supporting surface 24a that passs centripetal force at drilling direction A and for upload the surface of one or more shoulder, flange or the similar type of the supporting surface 24b that passs centripetal force at Return-ing direction B.Body 23 has corresponding stayed surface 25a and 25b.Around main shaft 17, at described surface-supported point, can there be sliding space 26 in place.The axial end surface of sliding space 26 can be used as stayed surface 25a and 25b.
Can be fed to main shaft 17 and further be fed to drilling equipment along pressure channel 27 such as compressed-air actuated pressure medium.
Fig. 4 illustrates the second whirligig 17, and some features wherein are corresponding to the feature shown in Fig. 3.In scheme illustrated in fig. 4, main shaft 17 is included in the first main shaft portion 17a on rear end side and the second main shaft portion 17b on front, and the first main shaft portion 17a and the second main shaft portion 17b are connected to each other by for example with the axial stiffness of connecting thread, being connected 28.The second main shaft portion 17b can comprise feeding flange 29, and the axial surface of this feeding flange 29 forms stayed surface 24a, 24b.Around feeding flange 29, there is slidingsurface 26, this slidingsurface 26 is served as reasons also as the end 25a of stayed surface 25a, 25b in body 23 and the annular space that 25b limits out in the axial direction.Fore bearing 22 is sliding bearings, and it is disposed in the slidingsurface 26 on the rear surface side of feeding flange 29.Fore bearing 22 can slide together with main shaft 17 in sliding space 26.When on drilling direction A, feeding occurring, centripetal force is passed to feeding flange 29 and further is passed to main shaft 17 by end 25a and fore bearing 22 from body 23.When on the side of returning B, feeding occurring, centripetal force is passed to main shaft 17 from body 23 by end 25b and feeding flange 29.Sliding space 26 at one end or two ends places can comprise end damper 30,31. End damper 30,31 can be the ring-shaped article that comprises elastic compressible material.The end damper can weaken from drilling equipment 9 and is passed to main shaft 17 and further is passed to impact and the stress of the remainder of structure.In some cases, there are not end damper 30 and 31, or alternatively, only use rearward end damper 30.Can provide the lubrication oil from passage 32 to sliding space 26, thereby fore bearing 22, end damper and stayed surface are oil lubrications.
Around main shaft 17, can there is pressure medium space 33, compressed air etc. can be supplied to pressure medium space 33 from passage 27.Main shaft 17 comprises for pressure medium being guided to its front end and further guiding to the passage of drilling equipment 9.Pressure medium space 33 can be separated with sliding space 26 and separate with the lubricated space 37 at end bearing 21 places with 36 by shaft seal 35.Can be to space 37 sliding agents that provide from passage 38, thereby end bearing 21 is also oil lubrication.
On the periphery of the rear end of the first main shaft portion 17a, there is one group of groove 19, the turnbarrel 20 with one group of corresponding groove is connected to described one group of groove 19.Described one group of groove allows main shaft 17 movement in the axial direction.Turnbarrel 20 is supported to body 23 by bearing 39 and 40, makes it fix in the axial direction.Revolving force can be passed to turnbarrel 20 by means of the rotation hub 41 of axle 42 grades that are connected to gear train 15.Certainly, it can be feasible the structure of turnbarrel 20 and rotation hub 41 being merged in an entity.Gear train 15 and rotation motor 16 can be modular constructions, and they can be disposed in extending axially in section of main shaft 17.
Fig. 5 illustrates main shaft 17 and has moved to the situation in its front position in the axial direction.This slip movement can for example occur when connecting thread is connected.
Embodiment shown in Fig. 6 is from the different of embodiment shown in Fig. 4 and Fig. 5, and main shaft 17 is not formed by two parts, and it is one and integrates the axle part.Feeding flange 29 can be the integrated part of main shaft 17, or it can be manufactured and be attached to the parts of the shaft portion of main shaft independently.For example, in Fig. 6, being connected between dotted line indication feeding flange and shaft portion, this connection can be welding point.In addition, the difference of the rotary unit 7 of Fig. 6 is that it does not have gear train, but rotation motor 16 is connected to rotation hub 41 by means of axle 42 or another transferring elements.Rotation motor can be direct drive motor, and its size is formed to make does not need independently gear train.
In Fig. 6, see, can be by means of the axial location of one or more sensor 50 monitoring main shafts 17.Sensor 50 can be disposed in the suitable position in the structure of rotary unit 7.Replace sensor 50, can use suitable measurement mechanism.Identifying information can connect 51 by means of the transmission of wireless or cable data be transferred to control module 52, and when control is included in rock and bores the actuator in unit, this control module 52 can be taken into account identifying information.In addition, the centripetal force that positional information can be crept into for control and the state of monitoring axial damper.
Fig. 6 further illustrates flow member 49, and the purpose of this flow member is to generate lubrication oil stream and therefore improve the lubricated of parts in lubricated space in lubricated space.For example, screw thread, helix or the projection on the periphery of rotation hub 41 can be used as flow member 49.
Fig. 6 illustrates main shaft 17 and is supported to another alternate embodiment of body 23 or the body part in the suitable front portion of body 23 by journal bearing 53 shown by dashed lines and that greatly simplify.Therefore, can make the length of support L between bearing 21 and 53 very large.In addition, in this embodiment, bearing 22 can be the cod that does not participate in the radial support of main shaft 17.There is gap between bearing 22 and main shaft 17 and between bearing 22 and sliding space 26, making bearing 22 easily move axially.This character can be preferred with regard to making axial stress waves with regard to weakening.More generally, can also in the rotary unit 7 of the axial damper that is provided with integration, utilize this embodiment.Therefore, scheme is not restricted to the definite embodiment of Fig. 6.
It should be noted, on above embodiment, rotation motor can be hydraulic motor or motor.In addition, direct drive motor also can be used in the rotary unit 7 shown in Fig. 3 to Fig. 5, in this case, departs from the scheme of accompanying drawing, and they do not have gear train.
In some cases, disclosed feature can be used like this in this application, and no matter further feature.On the other hand, when in case of necessity, may be incorporated in disclosed feature in the application in order to various combinations are provided.
Accompanying drawing and relevant description only are intended to illustrate design of the present invention.Details of the present invention can change in the scope of claims.
Claims (17)
1. the rotary unit bored for rock, described rotary unit (7) does not have percussion mechanism and comprises:
Body (23);
Main shaft (17), described main shaft (17) is the elongate member that comprises front end and relative rear end, described front end has for the linkage of attached drilling equipment (9) (18), and described main shaft (17) utilizes at least two bearings (21,22) by with respect to the rotatable described body (23) that supports to of its longitudinal axis (R);
Rotation motor (16);
Transmission member, described transmission member will be for being passed to from the revolving force of described rotation motor (16) described main shaft (17);
Axial support surface, described axial support surface is for above transmitting the axial force between described body (23) and described main shaft (17) at drilling direction (A) and Return-ing direction (B); With
Passage (27), described passage is used for pressure medium being guided to described main shaft and further guiding to described drilling equipment (9),
It is characterized in that,
Described main shaft (17) is slidably supported to described body (23) in the axial direction.
2. rotary unit according to claim 1, is characterized in that,
Described main shaft (17) is being supported to described body (23) in the radial direction by means of the fore bearing in the part that is in described front end (22) and by means of the end bearing in the part that is in described rear end (21); And
Described fore bearing (22) and described end bearing (21) are sliding bearings.
3. rotary unit according to claim 1 and 2, is characterized in that,
Described transmission member comprises sliding component, and described sliding component allows moving axially of described main shaft (17) in the situation that do not transmit axial force.
4. according to the described rotary unit of any one in aforementioned claim, it is characterized in that,
Revolving force is passed to described main shaft (17) from the part of the described rear end of described main shaft.
5. according to the described rotary unit of any one in aforementioned claim, it is characterized in that,
Described rotation motor (16) is positioned on the rear end side of described main shaft (17); And
Described rotation motor (16) and described main shaft (17) are arranged on identical axial line.
6. according to the described rotary unit of any one in aforementioned claim, it is characterized in that,
The periphery of described main shaft (17) comprises have axial support surface at least one feeding flange (29) of (24a, 24b);
Described body (23) comprises around described main shaft (17) and has the ring-type sliding space (26) of axial length in the position of described feeding flange (29);
Described sliding space (26) is limited with stayed surface by axial forward end (25a) and axial rearward end (25b); And
The stayed surface of described sliding space (26) and described feeding flange (29) is arranged in order between described body (23) and described main shaft (17), to transmit axial force.
7. rotary unit according to claim 6, is characterized in that,
Described feeding flange (29) and described sliding space (26) are positioned in the described front end place of described main shaft (17);
In described sliding space (26), exist around the fore bearing (22) of the described front end of described main shaft (17);
Described fore bearing (22) is positioned in the part between the described rear end (25a) of described feeding flange (29) and described sliding space; And
Described fore bearing (22) is sliding bearing and is arranged in slidably in the axial direction in described sliding space (26).
8. according to the described rotary unit of claim 6 or 7, it is characterized in that,
Axially damper is integrated in the structure of described rotary unit (7), with so that affect the axial stress of described main shaft and weaken; And
Described axial damper comprises at least one end damper (30,31), and described end damper (30,31) is arranged in the axial end portion (25a, 25b) of described sliding space (26) and locates.
9. rotary unit according to claim 8, is characterized in that,
Described end damper (30,31) is ring-shaped article; And
Described end damper (30,31) is made by compression elastic material.
10. according to the described rotary unit of any one in aforementioned claim, it is characterized in that, described connecting elements (18) at the described front end place of described main shaft (17) is connecting thread, thereby being connected between described rotary unit (7) and described drilling equipment (9) is rigidity in the axial direction.
11. according to the described rotary unit of any one in aforementioned claim, it is characterized in that,
Described main shaft (17) comprises and is arranged on identical axial line and utilizes axial stiffness to connect (28) and be connected to the first main shaft portion (17a) and the second main shaft portion (17b) each other;
The periphery of the rear end of described the first main shaft portion (17a) comprises for transmitting one group of groove (19) of revolving force;
By means of fore bearing (22) and end bearing (21), the part middle (center) bearing in the end of described body (23) is arranged on described body (23) described the first main shaft portion (17a); And
The front end of described the second main shaft portion (17b) comprises the connecting thread (18) for attached described drilling equipment (9).
12. according to the described rotary unit of any one in aforementioned claim, it is characterized in that,
Described main shaft (17) is arranged on described body (23) by means of fore bearing (22) and end bearing (21) bearing with axially mounting distance (L), and the position in described bearing (21,22), described main shaft (17) has diameter (D1, D2); And
The ratio of a diameter of the maximum in described length of support (L) and described diameter (D1, D2) is 3:1 at least.
13. a rock bores unit, comprising:
Rotary unit (7), described rotary unit comprises: for the rotation motor (16) that generates revolving force; Main shaft (17), revolving force is passed to described main shaft (17) by means of transmission member; And for drilling equipment (9) being attached to the connecting elements (18) of described main shaft (17);
Feed beam (5), by the support of described feed beam (5), described rotary unit (7) can be upper mobile at drilling direction (A) and Return-ing direction (B);
Feed arrangement (6) for generation of centripetal force (F); And
Drilling equipment (9), described drilling equipment comprises that at least one creeps into pipe (10), and the first end of described drilling equipment (9) is connected to described rotary unit (7), for centripetal force (F) and revolving force (R) are passed to described drilling equipment (9), and the free end of described drilling equipment (9) comprises the drill bit (11) for smashing rock
It is characterized in that,
The described main shaft (17) of described whirligig (7) supports to described body (23) in the axial direction slidably.
14. rock according to claim 13 bores unit, it is characterized in that,
Described rock bores unit (4) and comprises the percussion mechanism (13) in the described free-ended part that is arranged in described drilling equipment (9); And
Described drill bit (11) is connected to described percussion mechanism (13).
15. bore unit according to the described rock of claim 13 or 14, it is characterized in that,
Described rock bores unit (4) and comprises balladeur train (8), and described balladeur train can be upper mobile at described feed beam (5); And
The described body (23) of described rotary unit (7) is fixedly attached to described balladeur train (8).
16. bore unit according to the described rock of any one in aforementioned claim 13 to 15, it is characterized in that,
Described rock bores at least one sensor (50) that unit (4) comprises the axial location of the described main shaft (17) for judging described rotary unit (7).
17. one kind for boring the method for rock, comprising:
Utilize rock to bore unit (4) and bore rock, described rock bores unit (4) and at least comprises rotary unit (7), feed beam (5), feed arrangement (6) and drilling equipment (9);
Make the main shaft (17) of described rotary unit (7) be passed to around its longitudinal axis rotation and will rotatablely move (R) drilling equipment (9) that is connected to described main shaft (17), the outermost end of described drilling equipment comprises the drill bit (11) for smashing rock;
Described feed arrangement (6) by means of being supported by described feed beam (5) makes described whirligig (7) feeding on drilling direction (A) and Return-ing direction (B); And
By means of connecting thread (18), described drilling equipment (9) is connected to described main shaft (17), and the drilling parts (10) that will be included in described drilling equipment (9) utilizes the connecting thread between described drilling parts to interconnect;
It is characterized in that,
When the drilling parts (10) by described drilling equipment (9) and described drilling equipment is connected and disconnects, the described main shaft (17) that allows described rotary unit (7) axially moves with respect to the described body (23) of described rotary unit.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI20115366 | 2011-04-15 | ||
| FI20115366A FI123185B (en) | 2011-04-15 | 2011-04-15 | Rotation unit, rock drilling unit and method for rock drilling |
| PCT/FI2012/050364 WO2012140326A1 (en) | 2011-04-15 | 2012-04-13 | Rotation unit, rock drilling unit and method for rock drilling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103477014A true CN103477014A (en) | 2013-12-25 |
Family
ID=43919686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012800186419A Pending CN103477014A (en) | 2011-04-15 | 2012-04-13 | Rotation unit, rock drilling unit and method for rock drilling |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US20140034387A1 (en) |
| EP (1) | EP2697469A1 (en) |
| JP (1) | JP2014510862A (en) |
| KR (1) | KR20140009490A (en) |
| CN (1) | CN103477014A (en) |
| AU (1) | AU2012241674A1 (en) |
| CA (1) | CA2829144A1 (en) |
| CL (1) | CL2013002912A1 (en) |
| FI (1) | FI123185B (en) |
| WO (1) | WO2012140326A1 (en) |
| ZA (1) | ZA201307154B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105507897A (en) * | 2014-10-09 | 2016-04-20 | 山特维克矿山工程机械有限公司 | Rotation unit, rock drilling unit and method for rock drilling |
| CN108533174A (en) * | 2017-03-03 | 2018-09-14 | 塔达诺曼迪斯公司 | Auger bindiny mechanism |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2528318C1 (en) * | 2010-10-12 | 2014-09-10 | Шицзячжуан Чжунмэй Коул Майн Эквипмент Мэнуфэкче Ко., Лтд. | Assembly drilling tool |
| DE102015201248B3 (en) * | 2015-01-26 | 2016-06-02 | Schaeffler Technologies AG & Co. KG | Sliding bearing arrangement of a rotary member on a bearing pin, in particular a planetary gear on a Planetenradbolzen a planetary gear |
| WO2017204664A1 (en) * | 2016-05-25 | 2017-11-30 | Resemin S.A. | System for drilling radial boreholes which uses the coincidence between the drilling spindle and the rotation shaft and is mounted on a jumbo for underground mining |
| US10612314B2 (en) | 2017-05-25 | 2020-04-07 | Caterpillar Global Mining Equipment Llc | Gearbox guide assembly |
| JP7411675B2 (en) * | 2019-03-25 | 2024-01-11 | リープヘル－コンポーネンツ ビーベラッハ ゲーエムベーハー | Drive device for trench cutter |
| US11619104B2 (en) | 2020-10-08 | 2023-04-04 | Halliburton Energy Services, Inc. | Shape memory alloy shaft alignment coupler for downhole tools |
| HRP20231003T1 (en) | 2020-12-07 | 2023-12-08 | Eurodrill Gmbh | Drilling drive device for an earth boring machine |
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| CN1487168A (en) * | 2002-07-10 | 2004-04-07 | 林秉德 | Drilling bit percussion apparatus for drill |
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- 2011-04-15 FI FI20115366A patent/FI123185B/en not_active IP Right Cessation
-
2012
- 2012-04-13 KR KR1020137030174A patent/KR20140009490A/en not_active Application Discontinuation
- 2012-04-13 AU AU2012241674A patent/AU2012241674A1/en not_active Abandoned
- 2012-04-13 CA CA2829144A patent/CA2829144A1/en not_active Abandoned
- 2012-04-13 US US14/111,748 patent/US20140034387A1/en not_active Abandoned
- 2012-04-13 JP JP2014504366A patent/JP2014510862A/en active Pending
- 2012-04-13 EP EP12770573.9A patent/EP2697469A1/en not_active Withdrawn
- 2012-04-13 CN CN2012800186419A patent/CN103477014A/en active Pending
- 2012-04-13 WO PCT/FI2012/050364 patent/WO2012140326A1/en active Application Filing
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2013
- 2013-09-23 ZA ZA2013/07154A patent/ZA201307154B/en unknown
- 2013-10-11 CL CL2013002912A patent/CL2013002912A1/en unknown
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| US4266620A (en) * | 1980-02-11 | 1981-05-12 | Wolgamott John E | High pressure fluid apparatus |
| US4582145A (en) * | 1982-10-08 | 1986-04-15 | Oy Tampella Ab | Pressure-medium driven percussion device |
| US4971158A (en) * | 1987-12-21 | 1990-11-20 | Oy Tampella Ab | Method in rotary drilling and rotary drilling apparatus |
| CN1080354A (en) * | 1992-06-16 | 1994-01-05 | 古河机械金属株式会社 | Continuous auger and prevent locking apparatus with invalid impact thereon |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105507897A (en) * | 2014-10-09 | 2016-04-20 | 山特维克矿山工程机械有限公司 | Rotation unit, rock drilling unit and method for rock drilling |
| CN105507897B (en) * | 2014-10-09 | 2017-12-19 | 山特维克矿山工程机械有限公司 | Rotary unit, rock drilling unit and the method for rock drilling |
| CN108533174A (en) * | 2017-03-03 | 2018-09-14 | 塔达诺曼迪斯公司 | Auger bindiny mechanism |
| CN108533174B (en) * | 2017-03-03 | 2022-06-03 | 塔达诺曼迪斯公司 | Spiral drill connecting mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2014510862A (en) | 2014-05-01 |
| US20140034387A1 (en) | 2014-02-06 |
| WO2012140326A1 (en) | 2012-10-18 |
| EP2697469A1 (en) | 2014-02-19 |
| KR20140009490A (en) | 2014-01-22 |
| AU2012241674A1 (en) | 2013-10-31 |
| CL2013002912A1 (en) | 2014-08-01 |
| FI20115366A (en) | 2012-10-16 |
| FI20115366A0 (en) | 2011-04-15 |
| FI123185B (en) | 2012-12-14 |
| ZA201307154B (en) | 2014-06-25 |
| CA2829144A1 (en) | 2012-10-18 |
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Application publication date: 20131225 |