• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    CONSTRUCTED A rock drill bit: chin (2) arranged to intermittently generate thrust pulses for S • transfer via a drill string (3) to a rock cutting drill bit (6) in a felling direction (R.). The self-drilling machine comprises a power engaging unit (8) which is arranged to periodically impart to the horn string (3) an engaging force called the felling direction, and a control unit (1.) which is arranged to activate the power engaging unit to initiate said engaging force at a time for at least stOtvags liser father to ensure improved rock contact with the drill bit (6) as this exerts a blow. The invention also relates to a process and a rock drilling.
    公开号:SE1450188A1
    申请号:SE1450188
    申请日:2014-02-18
    公开日:2015-08-19
    发明作者:Per-Erik Larsson；Erik Jakobsson
    申请人:Atlas Copco Rock Drills Ab；
    IPC主号:
    专利说明:

    SLEEVE WRAPHER AND PROCEDURE FOR. MOUNTAIN CONTROL The invention refers to a rock drilling machine designed for an intermittent felling direction. generate stvtvOgsp iser far Transfer via a drill string to a rock-cutting drill bit. The invention also relates to a process for rock drilling and a rock drilling rig. BACKGROUND OF THE INVENTION In addition to securing the contact template of a drill bit and rock to be felled, a pd is applied according to current technology. drill bit acting force through the drill string. This drilling force forfeeding feed force is typically provided by power means acting on a sledge drilling machine carrying sledge, which is controlled on. a food bar.
    In today's rock drilling machines, the feed force is transferred to a drill neck, which under a first element in the drill string, seen from the rock drill, The transfer of the feed force 20 to the drill neck is normally provided by a damning unit from the stroke of the drill bit against the rock and varies with hi. a degree of rock contact boa drill bit.
    In addition to the feed bead, intermittent shock waves are provided during striking rock drilling through the drill string towards the drill bit, which is heard from a striking piston in the rock drill of the rock drill, which strikes the drill neck. 3.0cob f - the frequency.
    The steam power corn is transferred as: Power to the drill neck via the piston can be expressed corn pda, „1, 'Ap dan pd, 1.Aw am the average value of the steam pressure con Amp ar steamer's pressure area, 77549 A tumreqei for how much the feed force should be relation to impuisfiOdeL is = 3 'mcv'f, ELL skdi till dat matnirazkraften behOver vera SAf6r at sakertalla att borrkronan has kontakt med beraet far att mol. iqodra that it with b àiu of stot agen should be able to crush rock If the drill bit should not have contact with berqat, Oat would in addition to reduced drilling capacity, Oven lead to stot asenerg n not delivered to the rock, with upp armninq and okat slit r-Te cv qnqor template an individual drorrstra zskomponenter as f61 -N.
    An additional care is due to the fact that it has relatively matnhr ,, r = inolaae: oorrsr r- = t 1: tC tagor atdra.gna on matn-1 eskraften ar iiq 1 late: problems with slipperiness are constantly evolving lEilaibete in andamal to provideAll more reliable and durable components.
    OBJECTS AND MOST IMPORTANT CHARACTERISTICS OF THE INVENTION It is an object to provide a rock drilling machine and a method as described above, which address the problems. the prior art and at least alleviate these problems. These objects are achieved in a rock drilling machine and a method according to the above in that the rock drilling machine comprises: - a power application unit, which is arranged to periodically impart an application force to the drilling line in the said felling direction, cob - a control unit, which is arranged to activate the application device. time for the aistrandet of atninstone a selection of said statvagspuiser to ensure improved: berqkoflbakt at the drill bit then deravar a kind.
    It is hereby achieved that it is possible to momentarily apply a higher force via the drill string to the drill bit when this force is really needed, which means that a shock wave near the drill bit, with which the shock wave drill bit is to crush the receiving rock. This opens up a number of advantages. The average value of the feed force delivered from the rig can. As a result, bearings are set, but despite this, the force that presses the drill bit against the rock & A drill bit emits the blow can be as rigid as conventional rock drilling or even be allowed to be stoma,: This gives potential for greater felling speed better drilling subsidence.
    In the case of axes, components ± the rock drilling rig can be dimensioned to store continuous forces or better pressure against the rock for the drill bit in front of the slab itself. By the pulsating force ± practice pulsed ± the drilling string, the cracking risk can be reduced ± comparatively with a correspondingly large constant force. drilling string economy, which can even mean that drilling string components can be dimensioned for lower power impact, the slippage can also be improved, because a lower continuous feed force can be utilized and the problems of thrust can be avoided, which is typically a consequence of high feed force.
    According to the invention, the power engagement unit can be activated to initiate said engagement force by a selection of said thrust pusher, whereby Oct It is possible to, for example, initiate said impact force at every second, every third etc, thrust wave pulse. At hag-frequency percussion can. Namely, it turns out to be sufficient for obtaining an overall efficient drilling to in this way with a greater time interval 77549 ensure high power consumption then At least in some cases, in the event of an operation, it can suffice with lower power output for the remaining type to be good. herqsander division.
    It is preferred that the power supply unit comprises a steam piston, which is arranged for transmission of supply power to the drill string. In this way, a component already existing in the drilling machine is utilized and integrated into the power application unit in a simple and efficient manner and at a legal cost. It is suitable for a chamber belonging to the steam piston 1.0, which is thereby connectable to a pressure-cold receiving pressure fluid for the application of n-Amda actuating force. If the said chamber is a steam chamber, corn Or used for normal steam work, the efforts for production cob development can be minimized.
    It is possible that the power engagement unit comprises at least one engagement piston independent of the steam piston, which means that the different functions can be held independently.
    The invention is particularly applicable to the rock drilling machine comprising a percussion device with a percussion piston intended for action against a drill neck, which is for- and Aterrarliq in a cylinder. The control unit advantageously comprises a valve body portion supported by the percussion piston, the position of which in the cylinder Or is arranged to control the activation of the power application unit.
    In a preferred aspect, the rock drilling machine comprises an emulsifier with an imbui piston intended for action against a drill neck, which is only very highly movable in an axial joint of the rock horn machine. In this case the control unit also comprises an actuating valve, which for the actuation of the power actuating unit is controllable in dependence on a main control valve for the impeller, 77549 The invention also relates to a method for drilling in which thrust pumps are generated intermittently in a felling direction and override. wherein an actuating force is periodically brought to the drill string in said felling direction, and said actuating force is initiated info /. a time for the installation of At least a selection of said statase pulses to ensure improved rock contact of the drill bit as it produces a stroke.
    Advantages of the above are obtained in the dependent procedure features. Feed force is transferred by means of the drill string through a steam piston, a chamber belonging to the steam piston is suitably connected to a pressure coil for the application of said employ force, a steam chamber is connected to the advantage of one of the steam pistons which is independent of the steam piston, the shock wave pulses are preferably driven by a percussion device with a percussion piston intended for action against a borehole, which is forward and rearwardly a cylinder. the activation of the power application unit is then controlled by a valve body portion unpurred by the percussion piston, in a variant of the invention the statuary ampoules are generated by an impulse actuator with an actuating piston against a drill neck, an actuator valve actuating the main actuator valve .
    The invention also relates to a drilling rig comprising a rock drilling machine according to the above, 77549 BRIEF DESCRIPTION OF THE DRAWINGS The invention will now be described in more detail with reference to exemplary embodiments and to the accompanying drawings, which: schematically illustrate the equipment equipped with a device. a partial axial section of a sawmill shows a first embodiment of the saw, Fig. 3 shows a partial axial section of a sawmill. tred.utforiC. of the invention Fig. 5 shows a partial axial section of a gear unit; according to the invention, Fig. 5, we show a partial axial section of oc * 7 shows a di p: 7am exhibiting forces caverking the drill bit yid a) rrmaskin en.J.gen, 20 DESCRIPTION OF EMBODIMENTS IN THE FOLLOWING EMBODIMENTS are similar For the sake of clarity, in some cases not all elements on both sides of a symmetry axis, Fig. 1 schematically shows a rock rig, in which a drilling vehicle via a boom arm carried a feed beam 4, on which a rock drilling machine 2 Lr rdrlig Sam unusually Lr rock drilling rig equipped with 1 shown) means for applying a feed force in a felling direction R to the rock drilling machine. 2, The rock drilling machine 2 further intermittently thrust pulses ± the felling direction R via a drill string 3 to a measure distal to the drill string 3 placed a drill bit 6, which exerts a rock-dividing stroke in the rock. 5, 77549 In the embodiment arm of a percussion instrument, which is schematically illustrated in Fig. 2, there is a drill neck 14, which is a most proximal element in the drill string, subjected to the impact action from a tram and back in a cylinder in a hua H to the rock drilling machine rOrliq impact piston 7, Impact elf 7 is driven by means of a drive fluid, which is controlled to act intermittently. for. Exhausted surfaces on slag piston portions for driving the slag piston in a direction of impact and in a return direction, respectively. Radielite outside the impact piston 7 abuts via a sleeve 19 against the drill neck 14 a dam piston 9, which in this case al: a steam piston in a single dam device. , The steam piston 9 was intended to transfer feed force to the drill neck 14 and is far this anuakual ahbe: _t_ t, e; _, eh ualt, pkaA ,, hereOrand rimh eh via eh. pressure cold P pressurizable dam chamber 10, in which a piston portion of the steam piston 9 is operative. In the case of shockwave reflexes from the drill string, the steam piston basically acts as a float, which pushes the steam piston opposite the direction of impact against the action of the steam force. According to the invention, a power generating unit is provided, through which the steam piston 9 is also intermittently affected by an impact force. through the drill string down to the drill bit to ensure that there is good rock contact during a short period of the percussion cycle of the percussion device as the percussion piston 7 exerts site percussion. For this purpose, it is ensured with hl alp of this actuating unit 8 according to the invention that the hydraulic pressure,, nalnhu.c, -TI, the shown embodiment through the net to the steam chamber during these short time periods is supplied with pressure fluid from a high pressure fluid source 18, which provides a 7 7 4 9 This can be taken care of in several different ways, but dr19. illustrated with a control unit 11 comprising a valve port 13, which cooperates with the valve body portion 12 forming a cam portion on the percussion piston 7. In the case of the percussion piston 7 according to the invention, the valve port 13 will be opened by the said inner valve body portion 12 tapping the valve port 7 sldr towards the drill neck 14. By means of a suitable arrangement of fluid lines, which in an opening of the valve bore 13 lead pressure fluid from said auxiliary pressure fluid ball to a supply inlet 20 in the steam chamber 10, a pressure boiling in the steam chamber 10 will be pressed against the steam piston 14. The resulting force of action is now mediated via the drill string to the drill bit before the time of the stroke of the percussion piston against the drill neck. As a result, the type of corn drill bit against the rock is equal to that of a drill bit more securely attached to the rock, which results in a better effect of the type and better conditions for rock partitioning in the same operating condition.
    Fig. 3 shows a percussion instrument with a differently designed damper, which ± this case is a double-breaker ampere device. In this case, a dam flow Q is continuously supplied to a fourth steam chamber 15. A steam baltic pallet is established between it and a second steam chamber, which is denoted by 15. According to the invention, by analogy with the embodiment according to Fig. 2, an engagement of the steam piston 9 with the drill neck 14 takes place. before the percussion piston 7 attaches to the drill neck 14 by a pressure actuation taking place in the first steam chamber 15 through, for example, a conductive oak valve door arrangement corresponding to what is described in connection with Fig. 2. This damper is used to advantage to give a specified stroke. used oak Your breath to be a part of the present invention. A specified stroke or fivtidg 77549 is secured by a ± and for sic forward arrangement with one (or more) floating holes 40 in the cradle to a cylinder space containing the damping piston 9 in combination with a guide edge 41 on the damming piston 9.
    In the embodiment according to Fig. 4 here the steam piston 9 is continued with a further piston portion, which is operative in a special employing chamber 17. This employing chamber 17 is pressurizable corresponding to what is described in connection with Figs. 2, 3, whereby in this case the employing function is thus integrated. with the steam piston 9 but separated from the first steam chamber 15 and the second steam chamber 16 by a double steam evaporator system. In the embodiment according to Fig. 5 a mounting piston 23 is arranged concentrically between the slag piston 7 and a steam piston 9, whereby the mounting piston 23 cooperates with a connecting chamber 24. on the opposite side of the actuating piston 23 seen from the drill neck 14. The actuating chamber 24 is pressurizable on the corresponding set of corn described in connection with the above embodiment, Th In the embodiment according to Fig. 6 an impulse work is shown, which comprises an impulse piston 26, which operates in an ambulance chamber 29 and is designed to deliver statvagspuiser to a drill neck 2 5. A reciprocating chamber 30 is arranged in the felling direction seen from the impulse piston 26, St8tvAgspu1serne ken eg aistres gen = that there is an abrupt increase in pressure ± the impulse chamber 29 on the side of the impulse piston 26 corn is directed from the drill neck 25.
    Alternatively, static wave pulses are generated by initiating pressure ± the cavil impulse chamber 29 as the counter chamber 30, after which the pressure in the counter chamber is abruptly released.
    In order to provide an engagement force according to the invention, a force engagement unit with a 77549 engagement piston 27 is arranged radially outside a rod-like portion belonging to the impulse piston 26, which engagement piston 27 is mounted against the radially outer part of the drill neck 25. Alternatively, an engagement gear may be provided. The employment piston 27 is operative in a recruitment chamber 28, which is pressurizable in a manner corresponding to what is shown and described in connection with the above embodiments. Since no percussion piston can be used as a valve, the impeller can be used by a control unit with a valve device which is controlled to pressurize the actuating chamber 28 to actuate. the piston 27 against the drill neck 25 just before a shock wave pulse Ar is intended to be initiated.
    Fig. 7 shows a force (: flLid (t) - diagram showing forces acting on the drill bit at a rock drilling machine according to the invention. With a solid line, very short-term shock pulses 30 with h63 intensity are formed for forming a drill bit aistrade I etc percussion with forward and reverse The dashed line 31 illustrates the principle of the invention by showing the sum of a feed force and an actuating force which affect the drill bit, the lower power level 32, which lines substantially between the types of the percussion device (slides the impulse). the thrust pusher tubes are produced by feed force delivered from the drill bit as above.
    The force increases at 33 indicate that an application force has been applied to the drill string, which together with the feed force can be greater than a usual feed force, which is indicated by a dashed line even when the force level 34.
    As can be seen from this diagram, the force affecting the drilling force for the purpose of drilling may be greater when performing the rock subdivision strokes but less so Over a stroke cycle, 7754.3 The invention can be modified within the scope of the subsequent requirements. SAlunds ksn jerked. t: ninq av. ansattningskolvar aven yid slsgvel.x meu s.Lagkoivsx ombesorjae pa. other sat n through control units media on the percussion piston. For example, a control unit may be provided, by means of which the stroke of the percussion piston is detected and the detected layer is circled to control the initiation of the application force. 77549
    权利要求:
    Claims (18)
    [1]
    1. a power supply unit (3), which is arranged to c, or, the drill string (3) an attachment force CSnaranda felling directioncob 2. a power unit (11, which Or nordnad. To activate the power supply unit to nit your said snsattni.dgskraft infar a point for the generation of at least one selection of the aforesaid stotv spuiser to provide improved rock contact has the drill bit (6): In & derma utovsr one stroke,
    [2]
    Rock drilling machine according to claim 1, characterized in that the power application unit comprises a steam piston (9), which Or is arranged for transmitting feed force to the drill string (3),
    [3]
    Rock drilling machine according to claim 2, characterized in that a chamber (10; 15; 17) having a steam piston (9) can be connected to a pressure drill (18) for exerting said actuating force.
    [4]
    Rock drilling machine according to claim 3, characterized in that said chamber (10; 15) Or a damping chamber,
    [5]
    Drilling machine according to claim 2, characterized in that the power application unit (8) comprises at least one application piston (23) independent of the steam piston (9), 7-.1419
    [6]
    Rock drilling device according to one of Claims 1 to 5, characterized in that the rock drilling machine (2) comprises a hammer mill with a percussion piston m intended for action against a drill neck, which is present in one of the drills. cylinder.
    [7]
    Rock drilling machine according to claim 6, characterized in that the control unit (1.1) comprises a valve body portion WO supported by the percussion piston, the position of which in the cylinder is arranged to control the activation of the power engagement unit (} 3).
    [8]
    Rock drilling machine according to one of Claims 1 to 5, characterized in that the drilling machine (2) comprises an emulsifier. with a for action against a drill neck (25) intended. impulse piston (26), 1.
    [9]
    9. Beraborrmaskin en]. qt claim 8, kfinnetecknad ay. that% 11 activates of the power employee unit is controllable in bearing ay main control valve for the impuisverket,
    [10]
    A method of rock drilling, wherein static pulses are intermittently sensed in a felling direction and transmitted via a drill string (3) to a bearing-cutting drill bit (6), characterized in that an engaging force is periodically imparted to the drill string (3) in said felling direction, and before a time for the generation of at least a selection of the said bumper wagons may ensure improved rock contact with the drill bit (6) when it exerts a blow.
    [11]
    A method according to claim 10, wherein feed force is transmitted to the drill string by means of a steam piston (9), 77549
    [12]
    12. A method according to claim 11, characterized in that a chamber belonging to the damping piston is connected to a pressure cooler for exercising said attachment shaft.
    [13]
    A method according to claim 12, characterized in that a steam chamber is connected to said pressure cold (16),
    [14]
    A method according to claim 11, characterized in that said actuating force is actuated by an actuating piston (23) independent of the damping piston (9),
    [15]
    A method according to any one of claims 10 to 14, wherein the state indicators are mounted by a device with a side piston m intended for action against a drill neck, which is a front and rear wheel.
    [16]
    Method according to claim 15, characterized in that the activation of the power application unit is controlled by a valve body portion supported by slag (7).
    [17]
    A method according to any one of claims 10 to 14, wherein the state-of-the-art nozzles are driven by an impulse actuator with an impulse clamp intended for action against a drill neck (26),
    [18]
    Method according to claim 17, characterized in that an actuating valve which can be controlled in dependence on a main control valve for the impulse plant activates the power application unit. A rock drilling rig comprising a carrier vehicle, which via a harrow arm carries a feed beam (4), on which a rock drilling machine (2) is arranged, the rock drilling machine being a rock drilling machine according to any one of claims 1 - 9 77549 "--- 4 .17777 'w, ........ ................. '77 -77-777-7771 FA
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    同族专利:
    公开号 | 公开日
    WO2015126315A1|2015-08-27|
    SE538090C2|2016-03-01|
    WO2015126315A9|2015-09-24|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    SE532482C2|2007-04-11|2010-02-02|Atlas Copco Rock Drills Ab|Method, apparatus and rock drilling rig for controlling at least one drilling parameter|
    CN101765694B|2007-06-26|2014-04-30|阿特拉斯·科普柯凿岩设备有限公司|Method and device for controlling a rock drill rig|
    SE533084C2|2008-04-01|2010-06-22|Atlas Copco Rock Drills Ab|Drilling rig and method and control system for controlling a feed rate of said drilling rig|
    SE535149C2|2010-08-31|2012-05-02|Atlas Copco Rock Drills Ab|Hydraulic percussion for use in rock or concrete cutting equipment|CN107130919B|2017-05-17|2018-11-16|西南石油大学|A kind of cam motor formula hydroscillator|
    法律状态:
    2017-10-03| NUG| Patent has lapsed|
    优先权:
    申请号 | 申请日 | 专利标题
    SE1450188A|SE538090C2|2014-02-18|2014-02-18|Rock drilling machine and rock drilling procedure|SE1450188A| SE538090C2|2014-02-18|2014-02-18|Rock drilling machine and rock drilling procedure|
    PCT/SE2015/050179| WO2015126315A1|2014-02-18|2015-02-17|Rock drilling machine, method for rock drilling and rock drill rig|
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