SU746072A1 - Earth-drilling apparatus - Google Patents

Description

(54) DRILLING DEVICE The invention relates to a well drilling technique. A device for a shock-rotational drilling device is known, comprising a housing, a shock mechanism with an electromagnetic drive, a hammer and an anvil connected to a rock-breaking tool, an alternator for cable-free power driven by a turbine, the electrical winding of the rotor of which is connected through a semiconductor gate with a winding of a shock electromagnetic drive mechanism 1 and 2. However, in this device, a complex and insufficiently reliable generator is used to power the electromagnetic drive gift mechanism. This generator is a special multi-winding electric machine that combines a synchronous generator and a pathogen in one housing. The use of such a complex electrical machine is caused by the requirement to provide an appropriate power supply for the rotating winding of the electromagnetic drive of the percussion mechanism. The purpose of this invention is to reverse the robustness of the device operation. This goal is achieved due to the fact that the device is equipped with an electrical contact, made in the form of two, two coaxially electrically insulated annular Cups with mercury with the corresponding ring arrays, which are connected to the MtBOM of the contact rods connected to the stator winding and the wiring of the magnet matte action mechanism. the rods are electrically connected to the cups, with the latter being constricted by the amp & a part of the drive, and the flash unit is fixed. FIG. 1 - drilling device; FIG. 2 is a section A-A of FIG. one; in fig. 3 liquid metal contact device design; in fig. 4 - section BB of FIG. 3; in fig. 5 is an electrical circuit for supplying a winding, an electromagnetic drive of a percussion mechanism. The drilling device contains a body 1, a percussion mechanism 2 with an electromagnetic drive 3, a drummer 4 and an anvil 5 connected to rockworking tool 6. The device is equipped with an asynchronous generator 7 located in the body 1, excited by capacitors 8, with a turbine drive 9. Rotor 1 About the asynchronous generator of the battle dinenbyymyontsami with piOTopOM 11 turbine drive 9, and fugim - with the case of 1 2 shock mechanism. The electric winding 13 of the stator 14 is generated (and 7 of the stationary contact rods 15, delivered by isolating insulating sleeves 16 in covers 17 and 18 of electrical contact 19, connected to the body of the generator by means of 2O rods and immersed in the mercury 21, contained 1. 1. cups 22 to 23, attached, on the insulator 24 to the rotating housing 12 of the percussion mechanism and having contact terminals 25, are connected to the winding 26 of the electric drive 3 of the percussion mechanism 2, A semiconductor valve 27 is connected to the wrench / toe circuit 26. At the terminals of the winding 13 vlyuGGyyyg elect 28 capacitors. The adapter also includes a mounting cup connected by a threaded connection to the cover 17, rolling rollers 29, isolating b1 "de bushings 30 and 31. The device also contains an additional housing 32, sub 33, turbine shaft 34 , generator shaft 35, limiting spring 36, electromagnet 37, splined connection 38, intermediate shaft 39, seals 40,. The device operates as follows. Try Shtauy ZhShk: be ybyasht in the case 1 of the device through the sub 33 on the turbine blades. As a result, the turbine shaft 34 begins to rotate and take over. . during rotation, the generator shaft 35 connected to it, the torque of which is transmitted to the case 12 of the percussion mechanism associated with it. The latter transmits the twisting MtweHT through the SchlischwänDiuing 3 on the anvil 5, the intermediate shaft 39 and then to the rock-destroying instrument 6.1 yvb1V (G-ё1 6 - YOGSG Yoraayorie. Pulley 22 and 23, HLI: 1eplein1, ge to the insulator 24 to the case 12 of the shock YoHöyiz-Na, rotate together with the latter. At the same time, the mercury 21 contained in the cups all the time washes away the second 15. The alternating current voltage removed from the stationary winding 13 located on the asynchronous stator 14 generator 7, by means of electrocontact 19 through a semiconductor valve 27, which blows from A striking half-wave is applied to the rotating winding of electromagnets 39, which rotate with the housing of the percussion mechanism 2f and under the action of a pulsed magnetic field combined with the windings of electromagnets, the impactor 4 of the percussion mechanism 2 begins to periodically strike the anvil 5, the shock load from the anvil through the intermediate shaft is transferred to the rock-breaking tool. The flushing fluid, the passage of the turbine stage, between the housing and the stator 14 of the generator enters the space between the housing 1 and the darp mustache of the percussion mechanism, then into the holes of the intermediate shaft and then - “into the rock-cutting tool and to 3ai6oro to carry out the rock. Thus, the electric drive of the impactor in the borehole is powered by using a simpler, cheaper and more reliable alternator - an asynchronous self-excited generator with a short-circuited rotor, which can simply be implemented on the basis of a commercially available submersible asynchronous type machine (tsh pad). ; - about pruma and 3 et Drilling device, comprising a housing, a shock mechanism with an electromagnetic drive, a drummer and an anvil, connected to a rock cutting tool, an alternating current generator, the rotor of which is connected to the rotor of the turbine drive and with the body of the percussion mechanism, about the t itch with it so that, in order to increase the reliability of work, it is equipped with electrocontrol, made in the form of two installed coaxially, electrically insulated mercury ring cups with corresponding ring the contact rods are connected to the stator winding and the electromagnetic drive winding of the percussion mechanism, and the contact terminals of the rods are electrically connected to the hooks, the latter being connected to the rotating part of the drive, and the covers are fixed.

Sources of information that are taken into account with experts

1. S. I. Kitsis. Calculation of oscillations in an asynchronous self-excited geyframe, Izvesggi higher educational institutions of MB and MTR of the USSR, series Electromechanics, Na 9, 1967.

-2 USSR Author's Certificate No. 542814, cl. Е 21 В 3/12, 1975.

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FIG. 2

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Claims (1)

Claim A drilling device comprising a housing, a percussion mechanism with an electromagnetic drive, a striker and an anvil connected to a rock cutting tool, an alternator, the rotor of which is connected to the rotor of the turbine drive and to the body of the percussion mechanism, I mean that, in order to increase the reliability of operation, · it is equipped with an electrical contact made in the form of two coaxially mounted, electrically insulated ring cups with mercury with corresponding ring covers, which, by means of contact rings bo ttom associated with the stator coil with a winding and "electromagnetic drive the hammer, and terminals electrically connected to the rods cups, the latter being connected to the rotating part of the actuator, and a cover installed nepod Vision. . 746072