JPS60112987A - Impact drilling apparatus - Google Patents
Impact drilling apparatusInfo
- Publication number
- JPS60112987A JPS60112987A JP23049584A JP23049584A JPS60112987A JP S60112987 A JPS60112987 A JP S60112987A JP 23049584 A JP23049584 A JP 23049584A JP 23049584 A JP23049584 A JP 23049584A JP S60112987 A JPS60112987 A JP S60112987A
- Authority
- JP
- Japan
- Prior art keywords
- pressure medium
- pressure
- conduit
- supply conduit
- feed motor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000005553 drilling Methods 0.000 title claims description 17
- 230000007246 mechanism Effects 0.000 claims description 92
- 238000009527 percussion Methods 0.000 claims description 22
- 239000011435 rock Substances 0.000 claims description 14
- 230000001105 regulatory effect Effects 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 2
- 230000007423 decrease Effects 0.000 description 5
- 230000001934 delay Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000543 intermediate Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
- F15B11/17—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors using two or more pumps
-
- 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
- E21B44/00—Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
- E21B44/02—Automatic control of the tool feed
- E21B44/06—Automatic control of the tool feed in response to the flow or pressure of the motive fluid of the drive
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
- F15B2211/2053—Type of pump
- F15B2211/20538—Type of pump constant capacity
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/32—Directional control characterised by the type of actuation
- F15B2211/327—Directional control characterised by the type of actuation electrically or electronically
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/32—Directional control characterised by the type of actuation
- F15B2211/329—Directional control characterised by the type of actuation actuated by fluid pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/60—Circuit components or control therefor
- F15B2211/605—Load sensing circuits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/60—Circuit components or control therefor
- F15B2211/63—Electronic controllers
- F15B2211/6303—Electronic controllers using input signals
- F15B2211/6306—Electronic controllers using input signals representing a pressure
- F15B2211/6313—Electronic controllers using input signals representing a pressure the pressure being a load pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/60—Circuit components or control therefor
- F15B2211/67—Methods for controlling pilot pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
- F15B2211/7058—Rotary output members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/78—Control of multiple output members
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Geology (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Earth Drilling (AREA)
- Percussive Tools And Related Accessories (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、個々のモータへの圧力媒体供給が発生すべき
出力に関係して開開される衝撃穿孔装置に関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to percussion drilling devices in which the pressure medium supply to the individual motors is opened and opened in dependence on the power to be generated.
従来技術
穿孔機特に液圧さく岩機では、3つの異なるモータが設
けられている。たがねは回転モータを介して回さねばな
らず、他方側々の衝撃をたがねへ及ぼすため別のモータ
が必要である。たがねを岩石へ送り込むには、機械に保
持されるさく岩機では固有の送りモータもさらに設けね
ばならない。適当な穿孔出力を生ずるには、回転機構、
衝撃機構および送りモータの緊密な整合を行なわねばな
らない。穿孔すべき材料の種類が異なることを考慮する
と、この整合はきわめて困難である。穿孔機の送りが大
きすぎると、例えばいわゆる拘束がおこり、たがねまた
はそれを操作するモータが損傷する可能性がある。In prior art drilling machines, especially hydraulic rock drills, three different motors are provided. The chisel must be turned via a rotary motor, and another motor is required to apply the impulses on the other side to the chisel. In order to feed the chisel into the rock, the machine-held rock drill must also be provided with its own feed motor. To produce a suitable drilling output, a rotating mechanism,
Tight alignment of the impact mechanism and feed motor must be achieved. This alignment is extremely difficult considering the different types of materials to be drilled. If the feed rate of the drilling machine is too large, a so-called binding may occur, for example, and damage to the chisel or the motor operating it can occur.
上述した理由から、送りモータと回転モータを液圧穿孔
機では液圧回路に関して直列接続することが既に提案さ
れた。それにより、大きい負荷の場合のようにたがねが
ゆっくりしか回転しないときには、送りはわずかである
が、衝撃装置の制御はそのままであるようにしている。For the reasons mentioned above, it has already been proposed to connect the feed motor and the rotary motor in series in a hydraulic circuit in hydraulic drilling machines. This ensures that when the chisel rotates only slowly, as in the case of large loads, the feed is small but the control of the percussion device remains intact.
したがって岩石の及はす抵抗には関係なく、不変なエネ
ルギーの衝撃が発生され、それにより衝撃機構が損傷し
、同時に望ましくないわずかな前進しか行なわれない。Therefore, irrespective of the resistance exerted by the rock, a constant energy impulse is generated, which damages the impact mechanism and at the same time results in an undesirably small advance.
米国特許第3979944号明細書から、回転機構と衝
撃機構と送りモータとをもつ衝撃穿孔用液圧穿孔深が公
知である。回転v!A構、衝撃機構および送りモータは
互いに液圧的に接続され、3つの互いに無関係に動作す
る液圧ポンプが設けられている。送りモータの液圧回路
は開閉弁をもっている。回転機構の液圧回路は弁を介し
て衝撃機構の液圧回路に接続されている。この弁の役割
は、回転機構回路の圧力が小さすきるとき開いて、衝撃
機構用液圧回路と回転機溝用液圧回路との圧力平衡を行
なうことである。さらに送りモータの液圧回路が弁を介
して衝撃機構の液圧回路に直接接続され、衝撃機構の圧
力低下と共に送りモータ回路の圧力も同様に低下するよ
うにしている。回転機構の圧力媒体導管から開開、導管
が分岐し、この制御導管を介して衝撃、tis回路にあ
る弁が操作され、それにより衝撃機構回路の圧力低下を
行なうことができる。A hydraulic drilling depth for impact drilling is known from US Pat. No. 3,979,944, which has a rotation mechanism, a percussion mechanism and a feed motor. Rotation v! The A mechanism, the percussion mechanism and the feed motor are hydraulically connected to each other and three independently operating hydraulic pumps are provided. The hydraulic circuit of the feed motor has an on-off valve. The hydraulic circuit of the rotation mechanism is connected to the hydraulic circuit of the impact mechanism via a valve. The role of this valve is to open when the pressure in the rotating mechanism circuit is low and to balance the pressure between the hydraulic pressure circuit for the impact mechanism and the hydraulic pressure circuit for the rotating machine groove. Furthermore, the hydraulic circuit of the feed motor is directly connected to the hydraulic circuit of the percussion mechanism via a valve, so that as the pressure of the percussion mechanism decreases, the pressure of the feed motor circuit also decreases. An opening/opening line branches off from the pressure medium line of the rotating mechanism, and via this control line a valve in the percussion circuit can be actuated, thereby making it possible to reduce the pressure in the percussion mechanism circuit.
衝撃機構回路から再び側脚導管が弁へ分岐し、この弁が
送りモータの運動方向の反転を行なう。From the percussion mechanism circuit, a side leg conduit branches off again to a valve, which performs a reversal of the direction of movement of the feed motor.
しかしこのような制御は、その大きい慣性のため複雑な
使用には適していない。この慣性は、回転機構回路にお
ける圧力上昇によって衝撃機構回路の圧力低下が生じ、
そこで低下した衝8機構回路の圧力により送りモータの
回転方向の反転がおこることによって生ずる。送りモー
タの運動方向の再度の反転は、衝撃機構回路に適当な圧
力上昇がおこったときはじめて再び行なわれる。したが
って穿孔機は順方向運動の場合むだ衝撃を行なうかまた
は岩石へ向かって完全な衝撃を行なわないので、それに
応じて穿孔機の長時間損傷をひきおこすことになる。さ
らに空所、特に軟らかい岩石の包含により岩石の抵抗が
特に少ないと、衝撃機構に圧力低下が生じ、それによっ
て穿孔装置の引戻しが再び行なわれるが、これは穿孔技
術上理由のないことである。However, such control is not suitable for complex applications due to its large inertia. This inertia causes a pressure increase in the rotating mechanism circuit to cause a pressure decrease in the impact mechanism circuit,
This occurs because the reduced pressure in the 8 mechanism circuit causes a reversal of the rotational direction of the feed motor. A reversal of the direction of movement of the feed motor takes place again only when a suitable pressure buildup has occurred in the percussion mechanism circuit. In the case of a forward movement, the drilling machine therefore makes an unnecessary impact or does not make a complete impact on the rock, which can lead to corresponding long-term damage to the drilling machine. Furthermore, if the resistance of the rock is particularly low due to the inclusion of cavities, especially soft rocks, a pressure drop will occur in the percussion mechanism, which will cause the drilling device to be pulled back again, which has no reason in terms of drilling technology.
発明の目的
本発明の課題は、岩石の性質が異なりまた穿孔が大きく
進行した場合岩石中におけるたがねの拘束を回避し、同
時に切換え中における不・外装な遅れと装置のむだ衝撃
も回避することのできる衝撃穿孔装置を提供することで
ある。Object of the Invention The object of the present invention is to avoid binding of the chisel in the rock when the rock properties are different and the drilling progresses significantly, and at the same time avoid unnecessary delays during changeover and unnecessary impact on the equipment. It is an object of the present invention to provide an impact perforation device capable of
目的を達するための手段
圧力媒有特に圧力液体で駆動可能な回転引LvJj撃機
溝および送りモータが、調節機構例えば弁等をもつ圧力
fs:体導管を介して1つまたは複数の圧力源に接読さ
れ、圧力媒体導管特に回転機構の圧力媒体供給導管から
衝撃機構の圧力媒体導管にある調BR構へ至る制6■導
管が設けられている岩石の衝撃穿孔装置において、本発
明によれば回転v!A構、?#撃機構および送りモータ
へ至る圧力媒体供給導管が互いに別々にまたは並列に設
けられ、回転機構の圧力媒体供給導管から特に回転機構
OW iifでこの回転機構の圧力媒体供給導管にある
正圧により制′m可能で圧力媒体導管特に衝撃機構、送
りモータおよび場合によっては回転機構の圧力媒体供給
導管にある調節機構へ至る制御0管が設けられている。Means for achieving this purpose: A rotary puller groove and a feed motor, which can be driven by a pressure medium, in particular a pressure fluid, are connected to one or more pressure sources via pressure fs: body conduits with regulating mechanisms, e.g. valves, etc. According to the present invention, in a rock percussion drilling device provided with a pressure medium conduit, in particular a pressure medium supply conduit of a rotating mechanism, and a control conduit leading from a pressure medium supply conduit of a rotating mechanism to a control BR structure in a pressure medium conduit of an impact mechanism. v! A structure? # The pressure medium supply conduits leading to the percussion mechanism and the feed motor are provided separately from each other or in parallel, and in particular from the pressure medium supply conduit of the rotation mechanism to the rotation mechanism OW iif by the positive pressure present in the pressure medium supply conduit of this rotation mechanism. A control line is provided which leads to the pressure medium line, in particular the percussion mechanism, the feed motor and possibly the adjustment mechanism in the pressure medium supply line of the rotating mechanism.
発明の効果
このような装置により、岩石の抵抗が大きいときおこる
ように、例えば回転機構における限界値を越えて圧力が
上昇すると、衝撃機構への圧力媒体供給を絞るかまたは
中断し、同時に回転機構の回路における圧力変化によっ
て、回転方向の反転による送りモータの制御を行なうこ
ともできる。したがってこのような装置によって、回転
機構の供給導管における圧力上昇の際衝撃エネルギーを
減少するかまたは零にし、たがねを孔から引抜くことが
できる。それにより回転機構の圧力が再び低下するので
、同時にまたは絞りを介して遅らせて、送りモータの運
動方向の反転を再び行ない、衝撃機構の衝撃エネルギー
を高めることができる。Effects of the Invention With such a device, if the pressure rises above a limit value, for example in a rotating mechanism, as occurs when the resistance of the rock is large, the pressure medium supply to the impact mechanism is throttled or interrupted and at the same time the rotating mechanism It is also possible to control the feed motor by reversing the direction of rotation by changing the pressure in the circuit. Such a device therefore makes it possible to reduce or even eliminate the impact energy when the pressure builds up in the supply line of the rotating mechanism and to pull the chisel out of the hole. The pressure in the rotating mechanism is thereby reduced again, so that simultaneously or with a delay via the throttle, a reversal of the direction of movement of the feed motor can take place again and the impact energy of the percussion mechanism can be increased.
回転機構の圧力媒体導管と衝撃機構および(または)送
りモータの調節機構へ至る少なくとも1つの制御導管と
が、場合によっては回転機構の圧力媒体を導きかつ圧力
もれのないように接続されていると、圧力媒体をそのま
ま制御媒体として使用でき、それによって中間開閉器等
のような中介物による慣性が回避される。The pressure medium line of the rotating mechanism and at least one control line leading to the percussion mechanism and/or the adjustment mechanism of the feed motor are optionally connected to conduct the pressure medium of the rotating mechanism and in a pressure-tight manner. In this case, the pressure medium can be used directly as a control medium, thereby avoiding inertia due to intermediates such as intermediate switches and the like.
少なくとも1つの制■O管が、割病1媒体特に圧縮空気
をもつ別の制御導管にある調節機構に接続され、この別
の制御専管の圧力媒体回路持に圧力媒体供給導管の調節
ぼ構に接続されていると、調節機構を特に簡屯にかつ効
果的に操作でき、装置費用が特にわずかにされる。At least one control O pipe is connected to a regulating mechanism in a further control conduit having a medium, in particular compressed air, and is connected to a regulating mechanism in a pressure medium supply conduit to a pressure medium circuit dedicated to this other control. When connected, the adjustment mechanism can be operated particularly easily and effectively, and the equipment costs are kept particularly low.
回転機溝の圧力媒体供給導管に圧力で操作可能な電気開
閉器が設けられて、1つまたは複数の圧力以上および(
または)以下において電気回路を開門し、それにより圧
力媒体導管にある少なくとも1つの電気で操作可能な調
節条構を制御すると、特に多様な制御を行なうことがで
き、その際電気回路により、機械の大きさを特に有利に
考慮できる特に速い反応や遅れを簡屯に規定することが
できる。A pressure-operable electric switch is provided in the pressure medium supply conduit of the rotary machine groove so that one or more pressures above and (
or) a particularly versatile control can be carried out by opening the electrical circuit and thereby controlling at least one electrically actuable regulating arrangement in the pressure medium conduit, in which case the electrical circuit can be used to control the machine. Particularly fast reactions and delays, whose size can be taken into account particularly advantageously, can be easily defined.
実施例
・、暫撃液吐穿孔機の回路を概略的に示す図面により、
本発明を以下に詳細に説朗する。Example: A diagram schematically showing the circuit of a temporary liquid discharge perforator,
The invention will be explained in detail below.
3つの圧力媒体回路1,2および3が設けられて、それ
ぞれ圧力源としての問合のポンプ4,5および6をもっ
ている。圧力媒体回路lは回転機構用モータ7の操作に
用いられる。この圧力媒体回路には調節機構8が設けら
れて、一方ではポンプ4の圧力媒体回路を短絡しく図示
した位置、)、また回転機構の2つの異なる速度を可能
にする。調節機構8例えば弁スプールはソレノイド9に
より操作可能であり、このソレノイド9は圧力応動J5
閉器10および電源IIを介して操作可能である。この
圧力応動間I!J(rd+oは制′aC管12をもち、
この制御導管12が回転機構7の直前でこの回転機ra
7へ至る圧力媒体供給導管]3へ通じている。このよう
な接続により、回転機構7へ至る供給導管13の圧力が
特定値を超dすると、調節機構8を操作し、それによっ
て回転速度を変化するか、または回転機構7への圧力媒
体の供給を中断することができる。それから例えばたが
ねが孔から一部抜かれるため、圧力が低下すると、再び
圧力媒体を供給するか、または回転機構7の回転速度を
変1じすることができる。Three pressure medium circuits 1, 2 and 3 are provided, each having an interrogating pump 4, 5 and 6 as pressure sources. The pressure medium circuit 1 is used to operate the motor 7 for the rotating mechanism. This pressure medium circuit is provided with an adjustment mechanism 8, which allows on the one hand the short-circuited position of the pressure medium circuit of the pump 4 () and also two different speeds of the rotating mechanism. The regulating mechanism 8, for example a valve spool, can be operated by a solenoid 9, which is pressure-responsive J5.
It is operable via the closure 10 and the power supply II. This pressure response period I! J(rd+o has control 'aC pipe 12,
This control conduit 12 is connected to the rotating machine ra immediately before the rotating mechanism 7.
Pressure medium supply conduit leading to 7] 3. With such a connection, if the pressure in the supply conduit 13 leading to the rotating mechanism 7 exceeds a certain value, the regulating mechanism 8 is actuated and thereby the rotational speed is changed or the supply of pressure medium to the rotating mechanism 7 is changed. can be interrupted. Then, for example, the chisel is partially withdrawn from the bore so that when the pressure has decreased, pressure medium can be supplied again or the rotational speed of the rotating mechanism 7 can be varied.
圧力媒体回路2は衝撃機構用モータ14をもち、この回
路に設けられる調節条溝I5はばね16を介してその位
置を保持される。調節機構15はさらにピストン−シリ
ンダ装置17をもち、この装置17の圧力空間は制御導
管18を介して回転機構7の圧力媒体供給導管13に接
続されている。回転機構7の圧力媒体供給導管13内の
圧力が上昇すると、例えば特定の界値を超過すると、回
転機構7用液圧回路の動作媒体が流れるピストン−シリ
ンダ装置17を介して調節機構15が操作され、それに
より調節機構15が図面に示す開放位置から閉鎖位置へ
もたらされる。回転機溝7の圧力が低下すると、はね】
6により調節機構15が釘びrtt+放位置へ押戻され
る。圧力媒体回路2に同庁の調節機@19を設けて、例
えば圧力媒体回路の圧力を逃すこともできる。The pressure medium circuit 2 has a percussion motor 14, and the adjustment groove I5 provided in this circuit is held in its position via a spring 16. The adjusting mechanism 15 furthermore has a piston-cylinder arrangement 17 whose pressure space is connected via a control line 18 to the pressure medium supply line 13 of the rotating mechanism 7 . If the pressure in the pressure medium supply conduit 13 of the rotating mechanism 7 increases, for example when a certain limit value is exceeded, the regulating mechanism 15 is actuated via the piston-cylinder arrangement 17 through which the working medium of the hydraulic circuit for the rotating mechanism 7 flows. , thereby bringing the adjustment mechanism 15 from the open position shown in the figures to the closed position. When the pressure in the rotating machine groove 7 decreases, splashing]
6, the adjustment mechanism 15 is pushed back to the nail bolt rtt+ release position. It is also possible for the pressure medium circuit 2 to be provided with a regulator @ 19 of the agency, for example to relieve the pressure in the pressure medium circuit.
圧力媒体回路3には送りモータ20が設けられて、その
回転方向を調節機構21を介して反転させるか、または
ポンプ6のi(&圧回路を短絡して送りモータ20へ圧
力媒体が達しないようにすることができる。調節機構2
1は2つの圧力空間をもつピストンーシリンダ装置22
をもっている。これらの圧力空間には、固Hの制御媒体
例えば圧縮空気を通す制御導管23.24が通じている
。これらの制御、導管23 、−24は調節a溝25へ
通じ、この調節機、W25は圧縮空気源26に接続され
ている。調節機構25はばね27とピストン−シリンダ
装置28とをもち、この装置28は制御導管29を介し
て回1転モータ5の圧力媒体供給導管13に接続されて
いる。この圧力媒体供給導管13内の圧力が特定値を超
必すると、調節機構25が操作されるので、導管23.
24内の圧縮空気の流れ方向が反転され、それにより調
節機構21の操作が行なわれて、送りモータ20の回転
方向を反転させる。圧力が低下すると、調節機構25が
はね27により操作されるので、再びMtl’JJの送
り方向が得られる。The pressure medium circuit 3 is provided with a feed motor 20, the direction of rotation of which is reversed via an adjustment mechanism 21, or the i(& pressure circuit of the pump 6 is short-circuited so that no pressure medium reaches the feed motor 20. Adjustment mechanism 2
1 is a piston-cylinder device 22 having two pressure spaces
have. Control conduits 23, 24 through which a solid hydrogen control medium, for example compressed air, leads into these pressure spaces. These controls, conduits 23, -24, lead to a regulating a-channel 25, which regulator, W25, is connected to a source of compressed air 26. The adjusting mechanism 25 has a spring 27 and a piston-cylinder arrangement 28 , which is connected via a control line 29 to the pressure medium supply line 13 of the rotary motor 5 . If the pressure in this pressure medium supply conduit 13 exceeds a certain value, the regulating mechanism 25 is actuated so that the conduit 23.
The direction of flow of the compressed air in 24 is reversed, thereby operating the adjustment mechanism 21 to reverse the direction of rotation of the feed motor 20. When the pressure decreases, the adjustment mechanism 25 is actuated by the spring 27, so that the feeding direction of Mtl'JJ is again obtained.
さらに岩石の衝撃穿孔の際抵抗が高まると、次の過程が
おこる。まず圧力IS体供給導管13内の圧力」二昇に
よって、衝撃機構14の操作が中断されるかまたはわず
かなエネルギーで続行され、同時に送りモータ20がそ
の回転方向を変えるので、たがねは一部孔から出る。そ
れにより回転機構7の供給導管13内の圧力が4低下す
るので、送りモータ20の回転方向が変えられ、それに
よって送りモータ20は再び穿孔方向に回転する。その
とき衝撃機構14の衡翳エネルギーも再び所望の随に増
大される。さて再び大きい抵抗が生ずると、前記の過程
が繰返され、すなわち岩石の抵抗が大きいと往復運動が
行なわれ、それにより一方ではたがねを含む全′J装置
の損傷が回春され、他方では特に高いたがねMl進が行
なわれる。Furthermore, when the resistance increases during impact drilling of rocks, the following process occurs. First of all, due to a rise in the pressure in the IS supply conduit 13, the operation of the percussion mechanism 14 is interrupted or continued with a small amount of energy, and at the same time the feed motor 20 changes its direction of rotation, so that the chisel remains constant. Come out from the hole. As a result, the pressure in the supply conduit 13 of the rotating mechanism 7 is reduced by 4, so that the direction of rotation of the feed motor 20 is changed, so that the feed motor 20 rotates again in the drilling direction. The balancing energy of the impact mechanism 14 is then again increased as desired. Now, if a large resistance arises again, the process described above is repeated, i.e., the large resistance of the rock causes a reciprocating movement, which on the one hand rejuvenates the damage to the entire J apparatus, including the chisel, and on the other hand, especially A high chisel Ml progression is performed.
] iよ本発明による衝引装置の液圧回路図である。
1〜3・・・圧力媒・体回路、4〜6・・・圧力源(ポ
ンプ)、7・・・回転機構(モータ)、8.15゜21
・・・調節機構、12.18.29・・・制御導管、1
3・・・圧力供給導管、14・・・衝撃機構(モータ)
、20・・・送りモータ] i is a hydraulic circuit diagram of an aspiration device according to the present invention. 1-3...Pressure medium/body circuit, 4-6...Pressure source (pump), 7...Rotating mechanism (motor), 8.15°21
...Adjustment mechanism, 12.18.29...Control conduit, 1
3...Pressure supply conduit, 14...Impact mechanism (motor)
, 20... feed motor
Claims (1)
転機構、衝撃機構および送りモータが、調WJ機構例え
ば弁等をもつ圧力媒体導管を介して1つまたは複数の圧
力源に接続され、圧力媒体導管特に回転機構の圧力媒体
供給導管から衝撃機構の圧力媒体導管にある調節機構へ
至る制御導管が設けられているものにおいて、回転機構
(7)、衝撃機構(14)および歩りモータ(20)へ
至る圧力媒体供給導管が互いに別々にまたは並列に設け
られ、回転機構(7)の圧力媒体供給導管(13)から
特に回転機構(7)の直前でこの回転機溝(7)の圧力
媒体供給導管にある正圧により制il@I可能で圧力媒
体導管特に衝撃機構(14)、送りモータ(20)およ
び場合によっては回転機構(7)の圧力媒体供給導管に
ある調節機構(8+ ]L2] )へ至15制iaI1
g管(+2.18.29)が設けられていることを特徴
とする、岩石等の衝撃穿孔装置。 2 回転機溝(7)の圧力媒・体供給導@(+3)と衝
撃機構(14)および(または)送りモータ(2o)の
調節機構(15,25)へ至る少なくとも1つの制剖導
管(18,29)とが、場合によっては回転機構の圧力
媒体を導きかっ圧力もれのないように接続されているこ
とを特徴とする特許請求の範囲第1項に記載の装置。 3 少なくとも1つの制御導管(29)が、側脚媒体特
に圧縮空気をもつ別の制?n導管(,23,24)にあ
る調節機構(28)に接続され、この別の制御OIl導
管(23,24)が圧力媒・体厚管(3)特に圧力媒体
供給導管の調節機構(21)に接続されていることを特
徴とする特許請求の範囲第1項に記載の装置。 4 回転機溝(7)の圧力11J1.体供給導管に圧力
で操作可能な電気開閉器(10)が設けられて、1つま
たは複数の圧力以上および(または)以下において電気
回路を開閉し、それにより圧力媒体導管にある少なくと
も1つの電気で操作可能な調節機構(8)が側脚される
ことを特徴とする特許請求の範囲第1項に記載の装置。 5 調節機構へ至るすべての制御導管が同しように特に
圧縮空気を供給可能であることを特徴とする特許請求の
範囲第1項に記載の装置。[Claims] 1. A rotation mechanism, a percussion mechanism and a feed motor capable of being driven by a pressure medium, in particular a pressure liquid, are connected to one or more pressure sources via a pressure medium conduit with a regulating mechanism, e.g. a valve, etc. The rotating mechanism (7), the percussion mechanism (14) and the step are connected and are provided with a control conduit leading from the pressure medium conduit, in particular the pressure medium supply conduit of the rotating mechanism, to the regulating mechanism in the pressure medium conduit of the percussion mechanism. Pressure medium supply conduits leading to the rotary motor (20) are provided separately or in parallel with each other, from the pressure medium supply conduit (13) of the rotating mechanism (7) to this rotary machine groove (7), in particular immediately before the rotating mechanism (7). ) can be controlled by positive pressure in the pressure medium supply conduit of the pressure medium conduit, in particular of the percussion mechanism (14), the feed motor (20) and possibly the adjusting mechanism in the pressure medium supply conduit of the rotation mechanism (7). (8+ ]L2] ) to 15 system iaI1
An impact drilling device for rocks, etc., characterized in that it is equipped with a g-tube (+2.18.29). 2. At least one mechanical conduit () leading from the pressure medium/body supply conduit @ (+3) of the rotating machine groove (7) to the adjustment mechanism (15, 25) of the impact mechanism (14) and/or the feed motor (2o). 18, 29) are connected in a pressure-tight manner so as to conduct a pressure medium of the rotating mechanism as the case may be. 3. At least one control conduit (29) has a further control conduit (29) with a side leg medium, in particular compressed air. This further control oil conduit (23, 24) is connected to the adjustment mechanism (28) in the pressure medium supply conduit (3, 24), in particular the pressure medium supply conduit (21). 2. Device according to claim 1, characterized in that the device is connected to: 4 Pressure in rotating machine groove (7) 11J1. A pressure-operable electrical switch (10) is provided in the body supply conduit to open and close the electrical circuit above and/or below one or more pressures, thereby switching off at least one electrical circuit in the pressure medium conduit. 2. Device according to claim 1, characterized in that the adjustment mechanism (8) operable at the side is lateral. 5. Device according to claim 1, characterized in that all control conduits leading to the regulating mechanism are likewise particularly capable of supplying compressed air.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT3931/83 | 1983-11-08 | ||
AT0393183A AT381363B (en) | 1983-11-08 | 1983-11-08 | DEVICE FOR IMPACTING DRILLING |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS60112987A true JPS60112987A (en) | 1985-06-19 |
Family
ID=3557369
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP23049584A Pending JPS60112987A (en) | 1983-11-08 | 1984-11-02 | Impact drilling apparatus |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0145701B1 (en) |
JP (1) | JPS60112987A (en) |
AT (1) | AT381363B (en) |
DE (1) | DE3470582D1 (en) |
FI (1) | FI81886C (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU584794B2 (en) * | 1986-04-24 | 1989-06-01 | Steel Engineering Company Limited; The | Hydraulically powered rotary percussive machines |
FI904366A0 (en) * | 1989-11-08 | 1990-09-04 | Sulzer Ag | HYDRAULIC BORROWING FOR OVERFLOWERS FOR ANALYZING. |
FI90276C (en) * | 1991-01-03 | 1994-01-10 | Tamrock Oy | Procedure for drilling a hole in rock |
EP0906811B1 (en) * | 1997-10-03 | 2002-05-15 | SIG Produktionstechnik AG | Drill hammer |
FI20030115A (en) | 2003-01-24 | 2004-07-25 | Sandvik Tamrock Oy | Hydraulic system for quarrying equipment and method for adjusting rock drill power |
FI121027B (en) | 2004-09-24 | 2010-06-15 | Sandvik Mining & Constr Oy | Procedure for controlling striking rock drilling, software product and rock drilling device |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3823784A (en) * | 1973-06-08 | 1974-07-16 | Dresser Ind | Method and apparatus for controlling hydraulic drifters |
FI55892C (en) * | 1974-03-18 | 1979-10-10 | Tampella Oy Ab | HYDRAULISK BORRMASKIN I SYNNERHET BERGBORRNINGSMASKIN |
US4006783A (en) * | 1975-03-17 | 1977-02-08 | Linden-Alimak Ab | Hydraulic operated rock drilling apparatus |
US4074771A (en) * | 1976-03-25 | 1978-02-21 | Joy Manufacturing Company | Rock drill |
FI56723C (en) * | 1978-05-11 | 1980-03-10 | Tampella Oy Ab | STYRNINGSSYSTEM FOER BORRMASKIN |
JPS5655684A (en) * | 1979-10-06 | 1981-05-16 | Toyo Kogyo Co | Feed controller circuit for hydraulic rock driller |
-
1983
- 1983-11-08 AT AT0393183A patent/AT381363B/en not_active IP Right Cessation
-
1984
- 1984-10-25 FI FI844200A patent/FI81886C/en not_active IP Right Cessation
- 1984-10-31 DE DE8484890204T patent/DE3470582D1/en not_active Expired
- 1984-10-31 EP EP19840890204 patent/EP0145701B1/en not_active Expired
- 1984-11-02 JP JP23049584A patent/JPS60112987A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
AT381363B (en) | 1986-10-10 |
EP0145701A1 (en) | 1985-06-19 |
FI81886B (en) | 1990-08-31 |
FI844200L (en) | 1985-05-09 |
FI844200A0 (en) | 1984-10-25 |
DE3470582D1 (en) | 1988-05-26 |
EP0145701B1 (en) | 1988-04-20 |
FI81886C (en) | 1990-12-10 |
ATA393183A (en) | 1986-02-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4246973A (en) | Controls for hydraulic percussion drill | |
US3823784A (en) | Method and apparatus for controlling hydraulic drifters | |
US4355691A (en) | Hydraulic drilling apparatus | |
US4356871A (en) | Hydraulic control system for a rock drill | |
GB1496562A (en) | Rock drilling apparatus | |
US4440236A (en) | Hydraulic control system for a rock drill | |
GB1279111A (en) | Improvements relating to rock drilling apparatuses and their operating cycles | |
JPS60112987A (en) | Impact drilling apparatus | |
CA2013711A1 (en) | A method and an arrangement for controlling a rock drilling apparatus | |
US4369848A (en) | Control system for a rock drill | |
CN211145188U (en) | Operation control and counter-torque release device with hydraulic brake turntable | |
US3942592A (en) | Drill stem make-up and break-out system for earth drilling machines | |
GB1007903A (en) | Feed control means for down-the-hole rock drill rigs | |
GB1431383A (en) | Telescopic rock drill feed | |
GB2361495A (en) | Down hole motors and methods for their operation | |
US3669197A (en) | Control system for rock drills | |
US4846288A (en) | Hydraulically powered rotary percussive machines | |
GB1056369A (en) | Improvements in automatic rock drilling means | |
GB1128783A (en) | Independent rotation rock drill | |
JP3450115B2 (en) | Drilling control device | |
JPS62156494A (en) | Controller of rock driller | |
US3625622A (en) | Sensing means | |
JP2000130063A (en) | Jamming prevention device for drill | |
SU1222832A1 (en) | Drilling machine | |
CN220396145U (en) | Hydraulic diversion and confluence control system |