EP0439080B1 - Dispositif de forage du sol - Google Patents

Dispositif de forage du sol Download PDF

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Publication number
EP0439080B1
EP0439080B1 EP91100640A EP91100640A EP0439080B1 EP 0439080 B1 EP0439080 B1 EP 0439080B1 EP 91100640 A EP91100640 A EP 91100640A EP 91100640 A EP91100640 A EP 91100640A EP 0439080 B1 EP0439080 B1 EP 0439080B1
Authority
EP
European Patent Office
Prior art keywords
control
free
drilling device
fall
safety switching
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.)
Expired - Lifetime
Application number
EP91100640A
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German (de)
English (en)
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EP0439080A1 (fr
Inventor
Michael Cals
Hermann-Josef Von Wirth
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mhwirth GmbH
Original Assignee
Wirth Maschinen und Bohrgeraete Fabrik GmbH
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Publication date
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Priority to AT91100640T priority Critical patent/ATE97709T1/de
Publication of EP0439080A1 publication Critical patent/EP0439080A1/fr
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Publication of EP0439080B1 publication Critical patent/EP0439080B1/fr
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Classifications

    • 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
    • E21B19/008—Winding units, specially adapted for drilling operations
    • 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
    • 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
    • E21B7/022—Control of the drilling operation; Hydraulic or pneumatic means for activation or operation

Definitions

  • the invention relates to a drilling device according to the preambles of claims 1 and 2.
  • the winch belonging to a cable or cable system of a drilling rig is usually a so-called free-fall winch, i.e. a winch that can be set or switched into an operating state in which the rope can run freely at least below a predeterminable maximum speed, so that a load hanging on the rope falls freely.
  • a free fall winch i.e. a winch that can be set or switched into an operating state in which the rope can run freely at least below a predeterminable maximum speed, so that a load hanging on the rope falls freely.
  • Devices and working methods that use or require a free fall winch are described in the "Sonderbuch 66" (1971) by Salzgitter Maschinen AG.
  • the object of the invention is to take this into account and to design drilling devices of the type mentioned in such a way that the initiation of free-fall operation of a winch is at least so difficult in terms of operation that an increased one Security results.
  • the aim is to ensure that free-fall operation is only possible under predefinable conditions or, in certain circumstances, is even reliably prevented as inadmissible.
  • the invention also strives for a cheap design of safeguards against inadmissible free-fall operation in detail. Further problems connected with all of this, with which the invention is concerned, result from the respective explanation of the indicated solution.
  • the invention provides that, in addition to an actuating element to be actuated by the operator of the drilling device, at least one safety switching element in a control line for a control element for bringing about the free-fall operation or is present in a switching line and a predeterminable position of the safety switching element is a prerequisite for activating the control element for the state "free fall operation" that the safety switching element is a second actuating element and that both actuating elements are arranged spatially separated from one another at an operator station and that a rotating mechanism safety switching element is present which can be influenced by a sensor assigned to the rotating mechanism control in the sense of interrupting an associated control line when the rotating mechanism is actuated.
  • the second actuating element can in particular be a hand lever, a button or the like. or a pedal, foot switch or the like. be. Due to the need to act on two actuating elements, increased attention or special consideration is required from the operator, so that an unintentional triggering of a free fall operation of a winch is prevented.
  • the invention provides that, in addition to an actuating element to be actuated by the operator of the drilling device, at least one safety switching element is provided in a control line for a control element or in a switching line in order to bring about free-fall operation and a predeterminable position of the safety switching element is a prerequisite for activating the control element for the "free fall operation" state that the safety switching element is a second actuating element and that both actuating elements are spatially separated from one another at an operating position, and that a chassis safety device -Shifting element is present, which can be influenced by a sensor assigned to the drive motor control in the sense of interrupting a switch or control line when the drive motor is actuated.
  • the control element which is provided for the free-fall operation of the winch, can in particular be an electrically actuable hydraulic directional valve, in which case both the actuating element and the safety switching element are electrical switches or units containing such.
  • the invention provides an angular position safety switching element, which by means of an evaluation and / or switching device linked to the angle of rotation measuring device In the sense of an interruption of the associated control line when the rotary positions of the upper part of the drilling device lie outside a predeterminable angular value or angular range.
  • the upper part with the mast is in a certain position or occupies a position within a narrowly limited angular range.
  • This is in particular a position in which the load-bearing end of the rope belonging to the winch is in the axis of a borehole. This is also referred to below as the "downhole center position".
  • the main winch rope this is usually the middle or starting position of the upper part relative to the undercarriage.
  • the superstructure is rotated by an angle from the starting position, corresponding to the angular position of the boom on the mast.
  • the evaluation and / or switching device is designed such that the corresponding angles or angular ranges are set and then taken into account in terms of switching and control during operation.
  • Such an evaluation and / or switching device can be used by those skilled in the art Conceive available means without further ado.
  • the device can in particular contain a limit switch or the like, so that corresponding response ranges or tolerance or hysteresis values are possible.
  • the rotating mechanism safety switching element is expediently a pressure switch and the sensor is a shuttle valve connected to the pressure medium control.
  • the chassis safety switching element is advantageously a pressure switch and the sensor is a shuttle valve connected to the pressure medium control.
  • a fuse has been discussed above which prevents free fall operation when the top of the drill is not in a downhole center position, either with respect to the main winch rope or with the aid of an auxiliary winch rope. This can advantageously be combined with a fuse that precludes free-fall operation when a driving motor is actuated.
  • chassis safety switching element is connected in terms of circuitry to the evaluation and / or switching device or is integrated in the same such that the angular position safety switching element is also open or open when the chassis safety switching element is open . becomes.
  • the chassis safety switching element can also be used with such a device Facility can be combined.
  • the invention as defined in the claims includes all combinations of safety switching elements that make sense for the different requirements.
  • the drilling device shown in FIGS. 1 and 2 contains an undercarriage 1 with a crawler chassis 2, and a drive which can be rotated relative to the undercarriage 1 by means of a controllable drive about an axis of rotation D (FIG. 2), e.g. on a slewing ring superstructure or upper part 3 with driver's cab 14, a mast 4 with mast head 5 and a cantilever arm 6 thereon, a feed cylinder 7 in the mast 4, a carriage 8 which can be moved on the mast 4 with a power rotary head 9, a first free-fall winch 10 (main winch) with main rope 11 and a second free fall winch 12 (auxiliary winch) with auxiliary rope 13, which runs over a roller in the boom arm 6.
  • a control panel 17 with actuating and switching elements, including those for the "free fall operation" of the two winches 10 and 12.
  • a measuring device is provided for the angle of rotation that the upper part 3 can make relative to the lower part 1, which includes a rotor 21 and an angle sensor 22.
  • This provides a signal which is converted into a number for the angle of rotation on a display device 23. 2 shows the value of 360 ° with an additional tenth digit as an example.
  • the display device is located in the driver's cab 14.
  • FIG. 3 schematically shows a situation in which the load-receiving end of the main cable 11 belonging to the first free-fall winch 10 is located above the center M of the borehole B.
  • the angle display on the display device can then be set to "zero". After leaving this position by rotating the upper part 3 relative to the lower part 1, For example, to carry out another operation, the center of the borehole M can easily be found by rotating the upper part until the angle display is again "zero".
  • the auxiliary rope 13 of the second free fall winch 12 is guided over the extension arm 6. If the main cable 11 is located in the center of the borehole M, the load-bearing end of the auxiliary cable 13 is consequently located at the point S which is offset by an angle a from the center of the borehole M. This can e.g. 15 °.
  • FIG. 4 shows an operator station 20 as it can be in the cabin 14 (FIGS. 1 and 2).
  • a hand lever 15 in the area of the driver's right hand serves to operate the first or main winch 10, while a second hand lever 16 arranged next to the lever 15 serves to operate the second or auxiliary winch 12.
  • Each of the two levers can be pivoted forwards and backwards from a neutral center position in order to operate the winch in question via the associated drive in upward and downward operation, the size of the lever deflection corresponding to the winch speed.
  • the hand lever 15 is shown in FIG.
  • the hand lever 16 is of similar design.
  • the free fall state of the main winch 10 is triggered by pressing an electrical pushbutton switch 35 provided on the side of the hand lever 15, the hand lever moving 15 must be in its neutral middle position.
  • the free-fall state can be triggered by a corresponding electrical pushbutton switch 36 on the hand lever 16 in the neutral central position thereof in the auxiliary winch 12. By releasing the respective button 35 or 36, the free fall is released again in the winch in question.
  • the number 37 denotes an electrical key switch 37 located on the left side part 18b and thus in the area of the driver's left hand, which serves as a safety switch for the wall-free operation, as will be explained in more detail below.
  • This key switch 37 can form an element in itself or can also be combined with a control element for another unit of the drilling device.
  • the key switch 37 is provided on a pivotable hand lever 40 for the operation of the power rotary head 9 (FIG. 1).
  • the arrangement 24 contains several pedals, inter alia for the operation of the chassis of the drilling device.
  • Each of the two caterpillars 2 can be driven by means of a motor.
  • a pedal 38 is used to actuate the drive for the left caterpillar and a pedal 39 is used to actuate the drive for the right caterpillar.
  • Each pedal is depressed to run the caterpillar forward and backward to caterpillar.
  • the control of the traction motors is explained in more detail below in connection with FIG. 10.
  • a pedal 25 is used to influence the slewing gear for the upper part 3 of the device. The control for this is explained in connection with FIG. 7.
  • Depressing the pedal 25 to the front causes the upper part to be rotated clockwise (to the right) and depressing the pedal to the rear causes the upper part 3 to be rotated counterclockwise (to the left).
  • the upper part 3 Via another pedal of the arrangement 24, for example the leftmost pedal in FIG. 4, the upper part 3 can be braked.
  • a device 51 to be explained is provided with the display device 23 for the angular position of the upper part 3 relative to the undercarriage 1.
  • winches 10 and 12 can be prevented from being brought into the “free-fall operation” state unintentionally or under undesired other conditions.
  • a free-fall winch of a known type is required, which can be activated hydraulically.
  • Figure 6 shows a 4/2-way valve 30 with an electromagnetically actuated pilot valve.
  • pressure medium supplied can flow via a line 26 to the winch 10 (FIG. 1) and e.g. serve for lubrication, while a return flow to the tank takes place via line 27.
  • winch 10 FIG. 1
  • a return flow to the tank takes place via line 27.
  • pressure medium flows into the line 27, as a result of which the winch is brought into the “free-fall operation” state.
  • the line 26 is then return.
  • a second 4/2-way valve 32 (FIG. 6) with hydraulic lines 28 and 29 leading to the winch is provided in a corresponding manner.
  • FIG. 6 An electrical control line 34 can be seen in FIG. 6, which branches into control lines 31 and 33 leading to the valves 30 and 32.
  • control line 31 In the control line 31 is the already mentioned, manually operated push button switch 35 (see also FIGS. 4 and 5) as an actuating element for the valve 30 for activating the free fall function of the Winch 10 provided.
  • the manually operated pushbutton switch 36 (cf. FIG. 4) is arranged in the control line 33 as an actuating element for the free-fall function of the winch 12.
  • the manually operated pushbutton switch 37 (cf. also FIG. 4) is provided as a safety switching element.
  • This key switch 37 is thus arranged at the operator station 20 in the driver's cab 14 (FIG. 1) spatially separated from the key switches 35 and 36, in such a way that the key switches 35 and 36 are operated with one hand and the key switch 37 is actuated with the other hand must be to switch the main winch 10 or the auxiliary winch 12 in free fall operation. The operator is forced to pay attention by such two-hand operation. An unintentional bringing about the free-fall condition of one or the other winch is therefore excluded.
  • a free fall activation of a winch e.g. 1, prevents the winch 10 of the drilling device as long as the upper part 3 of the drilling device is rotated in one direction or the other.
  • a directional control valve 30 is provided for influencing the winch.
  • the slewing gear contains a hydraulic motor 41, a 6/3-way valve 42 serving to control it and having hydraulically operated pilot valves to which control lines 43 and 44 lead. These are based on valves 45 and 46 which can be actuated by the pedal 25 (FIG. 4).
  • the valves 45, 46 are connected to a pressure medium supply line P and an outflow line T.
  • the upper part 3 of the drill is rotated in one direction or the other by means of the motor 41.
  • a line valve 48 is connected to lines 43 and 44, to which a pressure switch 47 is connected via line 49 and is arranged in control line 34, 31 for valve 30.
  • the pressure switch 47 can, for example, be designed such that it is normally closed and responds at a control pressure of approximately 1 bar in the line 49 and then interrupts the control line 34, 31 by opening the contact. Actuation of the push button 35 then has no effect, i.e. the winch cannot be brought into the free-fall state as long as the upper part 3 of the drilling device rotates. If the control pressure drops again at the end of the rotary movement, the switch 47 can close again.
  • a push button switch 37 can be provided in the control line 34, 31 as an additional safety switching element. The explanations for the embodiment according to FIG. 6 apply accordingly.
  • the embodiment according to FIG. 7 is also suitable for protecting two winches, such as a main winch 10 and an auxiliary winch 12. It is (as in FIG. 6) a control line 33 going out between the switches 37 and 35 with the switch 36 and the valve 32 is present.
  • the number 51 denotes an evaluation and switching device to which a rotation angle measuring device for the upper part 3 of the drilling device, in particular a device 21, 22, as was explained further above in connection with FIG. 2, is connected.
  • the device 51 expediently also contains the display device 23 for the angle value.
  • the number 52 indicates a "reset" button with which the display can be set to "zero".
  • the evaluation and switching device 51 is via a control line 54 with a switch 55 in the control line 34, 31 going to the valve 30 with push button switch 35 and via a control line 57 with a switch 56 in the control line 34, 33 going to the valve 32 with push button switch 36 connected.
  • the reset button 52 can be used to set the display 23 in the device 51 to "zero". With this setting specified in the device 51, it issues a command via the line 54, by means of which the switch 55 is closed. This represents a release for activation of the free fall operation, which can now be done by actuating the switch 35.
  • a second angle value is entered, which corresponds to the rotational position of the upper part 3 of the drilling device at which the load-bearing end of the auxiliary cable 13 of the winch 12 or the corresponding point of the cantilever arm 6 is located above the center M of the borehole B.
  • the device 51 issues a command to the switch 56 via the line 57 in order to close the switch 56 and thereby release the free-fall operation of the auxiliary winch 12. This can then be effected by actuating the switch 36.
  • FIG. 9 shows a modified version of FIG. 8, which enables free-fall operation even after leaving the borehole center position if necessary. This is shown in FIG. 9 as well as in FIG. 8 for two winches.
  • a switch 37 is provided both in the control line 31 for the winch 30 and in the control line 33 for the winch 32.
  • both switches are connected to one another for actuation or there are two contact sets of a switch, i.e. In the driver's cab 14 there is a single button 37, which is arranged spatially separate from the push buttons 35 and 36.
  • the switches 55 and 56 already explained in connection with FIG. 8 are in the embodiment according to FIG. 9 parallel to the switches 37 in corresponding control line branches.
  • the undercarriage contains a hydraulic motor 61 for driving the left of the two tracks 2 and a hydraulic motor 71 for driving the right track.
  • a 6/3-way valve 62 with hydraulically operated pilot valves, to which control lines 63 and 64 lead, is used to control the motor 61.
  • These start from valves 65 and 66, which are actuated by the pedal 38 (FIG. 4).
  • the valves 65, 66 are on a pressure medium supply line P and a discharge line T connected.
  • the left caterpillar of the chassis 2 of the drilling device is moved forwards or backwards by means of the motor 61.
  • a shuttle valve 68 is connected to which a pressure switch 67 is connected via a line 69.
  • control for the motor 71 has: a 6/3-way valve 72 with hydraulically operated pilot valves, control lines 73 and 74, valves 75 and 76 assigned to the pedal 39, a shuttle valve 78 and a line 79 connected to it Pressure switch 77.
  • a 6/3-way valve 72 with hydraulically operated pilot valves, control lines 73 and 74, valves 75 and 76 assigned to the pedal 39, a shuttle valve 78 and a line 79 connected to it Pressure switch 77.
  • the right caterpillar of the chassis 2 of the drilling device is moved forwards or backwards.
  • Each of the normally closed pressure switches 68 and 78 is designed to operate at a given control pressure, e.g. of about 1 bar, responds in line 69 or 79, i.e. opens the associated contact and thereby interrupts a connected line at this point.
  • This line can be directly a control line for free-fall operation of the winch or winches or a line influencing a further system. There are various options.
  • the two pressure switches 67 and 77 are arranged in a line 80 which is connected to the evaluation and switching device 51.
  • the closed or open state of one of the pressure switches can trigger a control or switching process in the device 51, which prevents free-fall operation of one or both winches even when the other conditions for the release of free fall are met.
  • FIGS. 8 and 9 Such an embodiment is also shown in FIGS. 8 and 9 .
  • the pressure switches 67 and 77 assigned to the running gear operation are connected to the evaluation and switching device 51 via the line 80.
  • Their training is made with means that are available to the person skilled in the art so that a command via line 54 to close switch 55 and a command via line 57 to close switch 56 cannot be given, if only one of them Pressure switch 67 and 77 is open due to the operation of a traction motor. This means that when one or both traction motors are working, a free-fall operation of a winch is not possible even if the center of the borehole is correct or readjusted, as a result of which a free-fall could be triggered when the drilling machine is at a standstill.
  • FIG. 11 Another embodiment is shown in FIG. 11.
  • the two pressure switches 67 and 77 are arranged in a control line 34, which branches into the lines 31 and 33 leading to the valves 30 and 32, as was also explained in connection with FIG. 6.
  • the control line 34 is interrupted when one of the pressure switches 67 and 77 opens or when both open at the same time, as is the case when both motors 61 and 71 are in operation to move the drill.
  • a pressure switch 47 assigned to the slewing gear operation can also be provided in the control line 34, as is the case in connection with FIG. 7 was explained. This results in a device in which free-fall operation is prevented both when the upper part 3 of the drilling device is rotated and also when one or both travel drives of the drilling device are working.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
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  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
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  • Geochemistry & Mineralogy (AREA)
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  • Earth Drilling (AREA)

Claims (9)

  1. Appareil de forage, notamment sonde à fouiller le sol montée sur ou contre un véhicule porteur (1), comprenant un mât (4), au moins une commande à câble, comportant un treuil à chute libre (10 ou 12) et un système de lignes ou conduites de commande (34, 31 ou 33) qui peut être alimenté en énergie de commande par une source d'énergie et qui contient les éléments de manoeuvre et de commande (35 ou 36) au moyen desquels le treuil à chute libre (10 ou 12) peut être placé dans l'état de "fonctionnement en chute libre", et des moyens (42, 43, 44) de commande du dispositif d'entraînement en rotation (41) d'une partie supérieure (3) du dispositif de forage qui porte le mât (4) et le treuil à chute libre (10 ou 12), caractérisé en ce qu'en sus d'un élément de manoeuvre (35 ou 36), il est prévu au moins un élément interrupteur de sécurité (37 47 55 ou 56 67 ou 77), disposé dans une ligne ou conduite de commande (34, 31 ou 33) associée à un organe de commande (30 ou 32) ou dans une ligne ou conduite de commutation (80), une position de l'élément interrupteur de sécurité (37 ; 47 ; 55 ou 56 ; 67 ou 77) qui peut être préfixée constituant une condition préalable pour une activation de l'organe de commande (30 ou 32) dans l'état de "fonctionnement en chute libre", en ce que l'élément interrupteur de sécurité (37) constitue un second élément de manoeuvre et les deux éléments de manoeuvre (37, 35 ou 36) sont disposés à un poste de manoeuvre (20) en étant séparés l'un de l'autre dans l'espace et en ce qu'il est prévu un élément interrupteur de sécurité (47) du dispositif d'entraînement en rotation qui est agencé de façon à pouvoir être influencé par un capteur (48), associé à la commande du dispositif d'entraînement en rotation, dans le sens provoquant une fermeture d'une ligne ou conduite de commande (34, 31) associée lors d'une manoeuvre du dispositif d'entraînement en rotation.
  2. Appareil de forage, notamment sonde à fouiller le sol montée sur ou contre un véhicule porteur (1), comprenant un mât (4), au moins une commande à câble, comportant un treuil à chute libre (10 ou 12) et un système de lignes ou conduites de commande (34, 31 ou 33) qui peut être alimenté en énergie de commande par une source d'énergie et qui contient les éléments de manoeuvre et de commande (35 ou 36) au moyen desquels le treuil à chute libre (10 ou 12) peut être placé dans l'état de "fonctionnement en chute libre", et des moyens (62, 63, 64 ou 72, 73, 74) de commande d'au moins un moteur (61 ou 71) de déplacement du véhicule, caractérisé en ce qu'en sus d'un élément de manoeuvre (35 ou 36), il est prévu au moins un élément interrupteur de sécurité (37 ; 47 ; 55 ou 56 ; 67 ou 77), disposé dans une ligne ou conduite de commande (34, 31 ou 33) associée à un organe de commande (30 ou 32) ou dans une ligne ou conduite de commutation (80), une position de l'élément interrupteur de sécurité (37 ; 47 ; 55 ou 56 ; 67 ou 77) qui peut être préfixée constituant une condition préalable pour une activation de l'organe de commande (30 ou 32) dans l'état de "fonctionnement en chute libre, en ce que l'élément interrupteur de sécurité (37) constitue un second élément de manoeuvre et les deux éléments de manoeuvre (37, 35 ou 36) sont disposés à un poste de manoeuvre (20) en étant séparés l'un de l'autre dans l'espace et en ce qu'il est prévu un élément interrupteur de sécurité (67 ou 77) du dispositif de déplacement du véhicule qui est agencé de façon à pouvoir être influencé par un capteur (68 ou 78), associé à la commande du moteur de déplacement du véhicule, dans le sens provoquant une fermeture d'une ligne ou conduite de commutation ou de commande (80) lors d'une manoeuvre du moteur (61 ou 71) de déplacement du véhicule.
  3. Appareil de forage suivant la revendication 1, comportant un instrument de mesure de la position angulaire d'une partie supérieure du dispositif de forage, qui porte le mât et le treuil à chute libre, vis-à-vis d'une partie inférieure ou châssis du véhicule, caractérisé par un élément interrupteur de sécurité de position angulaire (55 ou 56) qui est agencé de façon à pouvoir subir l'influence d'un dispositif d'exploitation et/ou de commutation (51), relié à l'instrument de mesure de position angulaire (21, 22), dans le sens provoquant une fermeture de la ligne ou conduite de commande (34, 31 ou 33) associée, pour des positions angulaires de la partie supérieure (3) du dispositif de forage qui diffèrent d'une valeur angulaire pouvant être préfixée ou sont situées à l'extérieur d'un intervalle de valeurs angulaires pouvant être préfixé.
  4. Appareil de forage suivant l'une des revendications 1 et 2, caractérisé en ce que l'organe de commande (30 ou 32) est une vanne hydraulique à plusieurs voies à commande électrique et en ce que l'élément de manoeuvre (35 ou 36) et l'élément interrupteur de sécurité (37 ; 47 ; 55 ou 56 ; 67 ou 77) sont ou contiennent des commutateurs électriques.
  5. Appareil de forage suivant la revendication 1, comprenant un entraînement hydraulique du dispositif d'entraînement en rotation et des moyens de commande par agent de pression qui comprend une vanne à plusieurs voies agencée de façon à pouvoir être commandée en fonction de la manoeuvre d'une pédale, d'un levier à main ou analogue, caractérisé en ce que l'élément interrupteur de sécurité (47) du dispositif d'entraînement en rotation est un interrupteur à pression et en ce que le capteur (48) est une valve à changement de sens de passage qui est reliée aux moyens de commande par agent de pression.
  6. Appareil de forage suivant la revendication 3, caractérisé en ce que le dispositif d'exploitation et/ou de commutation (51) contient un organe de réglage de valeur limite.
  7. Appareil de forage suivant la revendication 2, comprenant un moteur hydraulique de déplacement du véhicule et des moyens de commande par agent de pression qui comprend une vanne à plusieurs voies agencée de façon à pouvoir être commandée en fonction de la manoeuvre d'une pédale, d'un levier à main ou analogue, caractérisé en ce que l'élément interrupteur de sécurité (67 ou 77) du dispositif de déplacement du véhicule est un interrupteur à pression et en ce que le capteur (68 ou 78) est une valve à changement de sens de passage qui est reliée aux moyens de commande par agent de pression.
  8. Appareil de forage suivant l'une des revendications 2 et 3, caractérisé en ce que l'élément interrupteur de sécurité (67 ou 77) du dispositif de déplacement du véhicule est combiné, en ce qui concerne les commutations, au dispositif d'exploitation et/ou de commutation (51) d'une façon telle que l'élément de commutation de sécurité de position angulaire (55 ou 56) est aussi ouvert lorsque l'élément interrupteur de sécurité du dispositif de déplacement du véhicule est ouvert.
  9. Appareil de forage comportant la combinaison de particularités de la revendication 2 et de l'une des revendications 3, 5 et 6.
EP91100640A 1990-01-22 1991-01-19 Dispositif de forage du sol Expired - Lifetime EP0439080B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT91100640T ATE97709T1 (de) 1990-01-22 1991-01-19 Bohrgeraet, insbesondere erdbohrgeraet.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4001681 1990-01-22
DE4001681A DE4001681C1 (fr) 1990-01-22 1990-01-22

Publications (2)

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EP0439080A1 EP0439080A1 (fr) 1991-07-31
EP0439080B1 true EP0439080B1 (fr) 1993-11-24

Family

ID=6398498

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91100640A Expired - Lifetime EP0439080B1 (fr) 1990-01-22 1991-01-19 Dispositif de forage du sol

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Country Link
EP (1) EP0439080B1 (fr)
AT (1) ATE97709T1 (fr)
DE (2) DE4001681C1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006056503A1 (de) * 2006-11-30 2008-06-05 Leopold Kostal Gmbh & Co. Kg Wickelfederkassette
US9175526B2 (en) * 2011-11-04 2015-11-03 Tesco Corporation Top drive with mounted winch

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2220630A1 (fr) * 1973-03-09 1974-10-04 Poclain Sa
DE3203432A1 (de) * 1982-02-02 1983-08-11 O & K Orenstein & Koppel Ag, 1000 Berlin Anordnung mit einem sicherheitsschalter in einem hydraulikkreislauf

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3833072A (en) * 1973-07-02 1974-09-03 Sanderson Cyclone Drill Co Drilling machine with driving tool for casing or pipe
DE3809646A1 (de) * 1988-03-22 1989-10-05 Delmag Maschinenfabrik Freifall-steuereinrichtung

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2220630A1 (fr) * 1973-03-09 1974-10-04 Poclain Sa
DE3203432A1 (de) * 1982-02-02 1983-08-11 O & K Orenstein & Koppel Ag, 1000 Berlin Anordnung mit einem sicherheitsschalter in einem hydraulikkreislauf

Also Published As

Publication number Publication date
DE59100617D1 (de) 1994-01-05
ATE97709T1 (de) 1993-12-15
EP0439080A1 (fr) 1991-07-31
DE4001681C1 (fr) 1990-12-20

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