SU1315283A1 - Nut driver - Google Patents

Abstract

This invention relates to a mechanized shock-rotational action. The purpose of the invention, an increase in productivity, is achieved due to the fact that the threaded connection is tightened by a high-energy impulse of force created by the inductor when the capacitor battery is discharged. The wrench includes a housing 1, a drive 2 disposed therein, a spindle 4 connected to the output shaft 3 through the drive and driven gear half couplings 6 and 7 of one-way action. The spindle 4 is covered with a sleeve 9 with working cams 10 diametrically opposed. The sleeve 3 is spring-loaded in the tangential direction by the spring 11 and connected to the spindle 4 via additional driving and driven gear half couplings 14 and 15. In the case 1, the inductors 12 are rigidly fixed and the limit switch 17 with the lever is built into the electrical circuit. 4 il. 7 Al / // S (L chll yyyy JL J JV -Lg J flfg-f C. .y VV-T el CX5 CO FIG, 1

Description

The invention relates to a mechanized tool with a rotary action and can be used in various industries for assembling threaded connections.

The purpose of the invention, an increase in productivity, is achieved due to the fact that the threaded connection is tightened by means of a high-energy-O stud of the screwed-on threaded force impulse generated by the inductor when the capacitor battery is discharged through it.

FIG. 1 shows a wrench, a general view, a longitudinal section j in FIG. 2 is a view A of FIG. 1, FIG. 3 is a section bb of FIG. one; Fig, 4 - inductor, general view.

The wrench includes a housing 1, placed in it a drive 2 with an output shaft 3, a spindle 4 with a head 5 for a turnkey key at the end. The spindle 4 is connected to the output shaft 3 by means of a driver j | which is made in the form of a single-acting gear coupling, the leading creeper 6 of which is mounted on the output shaft 3 and spring-loaded in the direction of the driven coupling half 7 by the spring 8. Driven coupling half coupling 7 is rigidly fixed on the spindle free end spindle 4 "The spindle 4 is covered with a sleeve 9 with cams 10 diametrically opposed, which is pushed in the tangential direction by a spring 11. Inductors 12 with coils 13 are fixed parallel to the cams 10 in housing 1 located in the plane and included in the circuit of capacitor batteries (not shown) Sleeve 9 is kinematically connected with the spy-slot 4 with the help of a ratchet mechanism, made in the form of a single mechanical gear coupling half, single-sided, in addition

40 relative to the axis of the spindle 4 with high speed. Rotating, the sleeve 9 carries with it an additional driving coupling half 14, which in turn through the additional driven coupling half

The leading lead 14 of which 45 of the 15 transmits rotation to the spindle is rigidly fixed on the end of the sleeve 9, 4 and further to the tightenable threaded additional drive of the coupling half 15 is mounted on the spindle with possible connection. The thrust of the threaded connection is determined by the amount of energy stored by the batteries of the

joint rotation and relative movement and spring loaded 50 sators. When triggered shock leading half coupling 14 spring 16.

A limit switch 17 with a lever is installed in the housing; it is integrated into the inductor electrical circuit and is designed for periordial interaction with the leading half coupling 6.

Sleeve 9 with cams 10 together with inductors 12 and ratchet gearshift mechanism sleeve 9 with working cams 10 rotate much faster than drive 55 2 under the action of a pulsed magnetic field. Due to this, the coupling half 7 slips relative to the drive half coupling and the drive 2 does not act a cool pulse right moment- At the same time, the final lever

This can form a rotary impact device.

The wrench works as follows.

Before starting work, a nut head (not shown) is fixed on the head 5 of the spindle 4 and is installed on a nut previously applied to the threaded part of the bolt or

Dineni. After that, the drive 2 is turned on, while its input shaft 3, through the driving and driven half couplings 6 and 7, the spindle 4 and the wrench head, transmits the torque to the tightened threaded connection by tightening it. As the threaded joint is tightened, the transmitted torque increases. When a certain torque is reached, the leading coupling half 6 departs from the driven coupling half 7, compresses the spring 8 and interacts with the lever of the limit switch 17, which in turn closes the inductor-capacitor battery circuit. As a result, the accumulated energy of the capacitor battery (not shown) is discharged through the inductor 12j through the coils 13 inductor0 5

Torus 12 passes a current pulse of high power, while a magnetic field is induced in them. Simultaneously in the cams 10, the sleeves 9 are induced

35 vortex currents that, interacting with the magnetic field of the inductor 12, create a dynamic force, under the action of which the cams 1.0 together with the sleeve 9 begin to turn

40 relative to the axis of the spindle 4 at high speed. Rotating, the sleeve 9 carries with it an additional driving coupling half 14, which in turn through the additional driven coupling half 15 transfers the rotation to the spindle 4 and then to the threaded

The 15 transmits the rotation to the spindle 4 and further to the tightened threaded

compound. The thrust of the threaded connection is determined by the amount of energy stored by the batteries of the

The rotary mechanism of the sleeve 9 with the working cams 10 under the action of a pulsed magnetic field rotates much faster than the drive 55 2. Due to this, the driven coupling half 7 slides relative to the driving coupling half and the drive torque 2 is not affected by a torque pulse. At the same time, the final lever

Plug 17 breaks the electrical circuit of the inductor 12 - a battery capacitor, which goes into charge mode. After that, the drive 2 is stopped and, if necessary, after a certain time due to the charging time of the capacitor bank, the drive is switched on again and the threaded connection is tightened with a subsequent force pulse. Then the wrench is rearranged to a new, threaded connection to be tightened and the whole cycle is repeated in the described sequence.

Claims (1)

Formula of Absorption A wrench, comprising a housing, a drive with an output shaft, a spindle with a wrench head, a leash, kinematically connecting. spindle with output shaft, and shock-rotating device, intended C21 FIG. 2 12 34 To interact with the spindle, characterized in that, in order to improve performance, the leash is made as a single-action face gear coupling, the leading coupling half of which is mounted on the output shaft and is spring-loaded towards the driven, the latter is fixed on the spindle, and the rotary hammer device is complete in the form of a sleeve that spans and springs in a tangential direction with diametrically opposed cams, a ratchet mechanism, kinematically connecting a sleeve with a spindle, fixed in the housing parallel to the cams of two flat inductors and intended to periodically interact with the leading coupling half of an end switch integrated in the inductor electrical circuit. 6-6 13 / 2 fO / / 3 (rig. 3 Fi.CH Compiled by Y.Sergeev Editor A.Vorovich Tehred M.Hodanich Order 2251ПЬ Circulation 953Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Production and printing company, Uzhgorod, st. Project, 4 Proofreader T. Kolb