SU968290A1 - Drilling rig with automatic selection of drilling duty - Google Patents

Description

(54) DRILLING INSTALLATION WITH AUTOMATIC DRILLING MODE SELECTION

refers to the mountain

The invention is in particular to the drilling industry, installations., /

Known rotator drilling rig, comprising a housing, a leading gear wheel, the spindle satellite-debalans; cruciform carrier, gear wheel crown,: connected to the body through the friction clutch 11}.

However, in this device, the spindle slippage during the entire work time & is necessary to automatically change the spindle speed during the drilling process, which leads to additional energy losses due to friction, causes strong heating, wear and friction output.

Known inertial drive of the drilling machine, containing the engine, gear, satellite debalans, with sun gear, spindle, diskvililo, with dampers and adjusting valve. Rotation from the engine through a gear coupling and dexfer, as well as from

the adjusting motor is transmitted through the pulse exciter through the spindle f 2 1.

This structure does not provide automatic selection of the mode of operation when changing the strength of the drilled rocks, since it does not provide for an automatic measurement of the revolutions of the reamer engine.

Closest to the proposed technical dryness and the achieved result is a drilling rig with automatic selection of drilling modes, containing the engine, gearbox, drill stem, inertial transformer vrashayushgrgment moment, pulsator, freewheel mechanism, output mechanism of its free motion, having a driven holder in which lamellar springs with counterweights are fixed, a ratchet and a clamping device Z.

Claims (2)

The disadvantage of this builder is that all spring plates are simultaneously put into operation, which leads to heavy loads on each hook & spring plate and its rapid deterioration, since due to the inaccuracy of manufacturing one or two BctynaiQT plates are first to work in view of the great rigidity, they will take up the entire load. The aim of the invention is to increase the efficiency of the drilling process by rational use of the drive power and increasing the durability of the installation. To achieve this goal in a drilling rig with automatic selection of drilling modes containing an engine, gearbox, drill stringer, inertial transformer of rotational moment, puller, freewheel gear, free-running output mechanism, having a driven holder in which plate-type springs with counterweights, ratchet and clamped, device, free-running output mechanism provided with stops, pivotally fixed in the cage with a gap relative to the plate springs from the side of counterweights, which are made in the form of trapezoidal plates, while a part of the weights are oriented on the plate springs with a larger base to the hinge, the rest are smaller. FIG. 1 shows a schematic diagram of a drilling rig 5k; in fig. 2 output freewheel; in fig. 3 is a schematic of the installation of the propeller on the plate spring; in fig. 4, view A in FIG. 3 (two options underneath); in fig. 5 - the case freewheel mechanism. The drilling rig contains a motor 1, an inertial transformer 2 of vrashayuschy torque, consisting of the case 3 of the pulsator 4, the body 5 of the output 6 elastic microchipping free-run mechanisms with plate springs 7, the gearbox 8, the rod 9 with the drill bit iO, the pulsator 4 as a planetary row including an epicyclic gear 11 connected to the engine shaft, satellites with unbalanced weights 12, a sun gear made integral with the intermediate shaft 13. Ratchets are fixed on the intermediate shaft 13 14 and 15, respectively, of the hull and output freewheel mechanisms. You The hollow free hop mechanism 6 with its slave clip 16 through. the gearbox and the rod 9 are connected to the drilling cutter 1O, and the case-free-running mechanism 5 with its driven yoke 17 is rigidly connected to the case 3 of the inertial transformer. The elastic elements of the 5th and 6th-free-motion mechanisms are curvilinear springs 7, hinged on the axis 18 and the driven cages 16 and 17 of the free-running mechanisms 5 and 6 and pressed to the ratchets 14 and 15 by a pressure device. The spacing of the leaf springs is a multiple of the spacing of the arrangement of the ratchet teeth. To balance the centrifugal forces, the leaf springs of the free-running output mechanism are provided with counterweights 19, which with op. The determined deformations of the leaf spring have the ability to interact with the limiters 2O, which are rigidly fixed in the driven housing 17 of the output free-running mechanism. The counterweights 19 through the mounting holes 21 are rigidly attached to the plate-like cylinder 7, for example with the help of rivets, with some of the counterweights mounted with a large base to the hinge, and the rest smaller. The device works as follows. The engine 1 rotates the epicyclic gear 11, which causes the satellites with unbalanced loads 12 to rotate. The unbalanced loads during rotation create an alternating moment on the intermediate shaft 13. The moment of the sign (straight) is transmitted to the output free-running mechanism 6, to the gearbox 8 and further to the rod 9 and the drill bit 10. The moment of another sign (reverse) through the free-wheeling mechanism mechanism 5 closes to the case 3. The selection of the output torque Momont depending on the strength of the drilled rocks is provided by the automaticity of the inertial transformer. In the field of average transmission ratios, in view of the greatest deformations of the plate springs of the output free-run mechanism, the counterweights 19 are plate-shaped; the springs 7 abut against the stops, the rigidity of each plate and the whole free wheel mechanism increases, the output moment decreases. In the range of gear ratios close to the maximum, parts of the plate springs 7 of the free wheel mechanism with counterweights installed by a large base to the hinge are pressed by centrifugal forces the number of lamellar springs entering into operation decreases, the m & freewheel becomes less rigid, the output moment increases. In each freewheel mechanism, all lamellar springs simultaneously enter. operation (this is provided by the short pitch of the arrangement of the plate springs to the pitch of the arrangement of the teeth of the ratchet), which reduces the load on one plate, and therefore increases the durability and reliability of the entire installation. The application of the proposed device allows you to automatically select the rotation, the bar when changing the moment of resistance on the drill bit, increase the control range of the drill bar, increase the intensity of the drill & not by supplying a pulse moment to the rod, reduce power costs, and facilitate the operation of the machine. .b "Formula of the invention 1., 1. Drilling rig with automatic selection of drilling modes, containing 9 0 shch engine, gearbox, rod with drill bit, inertial torque transformer, puller, freewheel mechanism, free-running output mechanism having a driven clip in which lamellar springs are fixed with a counterweight, ratchet, and a biasing device, for example. in order to improve drilling performance, the free-running output mechanism is provided with stops that are hinged in the driven cage with an OTW clearance relative to the leaf springs, from the Rhones counterweights, which are filled in the form of trapezoidal plates. - less. 2. Installation according to claim 1, in which the ball of the arrangement of the leaf springs is the short step of the arrangement of the teeth of the ratchet. Sources of information taken note of during examination 1. ABTqpcKoe USSR certificate № 253698, cl. Е 21 В 3/02, 1966. 2. USSR author's certificate b 368382, cl. Е 21 В 3/02, 197О. S “USSR author's certificate 566928, cl. Е 21 В 3/02 1977 prototype). 2 Type L fS Busa Id Fah.