SU1618614A1 - Hand tool - Google Patents

Abstract

This invention relates to a hand tool for assembling or disassembling threaded connections. The purpose of the invention is the expansion of technological capabilities. To do this, in the hand tool containing the handle 1 and the swivel head 5, associated with the planetary gear with the spindle 8, is installed in the latter (L o 00 0 FIG

Description

d 1

a percussion mechanism in the form of a percussion, strut 16 and fixing unit of its position, made in the form of a sleeve 18, a stepped rod 21 and balls 23. During operation, a force is applied to the handle 1, it moves together with the spindle 8 along the rod 16 and the sleeve 18, which is fixed on the last balls; 23 is compressed

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spring 17.-Zate the stop 14 moves the rod 21, the balls (23 release the sleeve 18 and the latter strikes end A on the end B of the rod .16, while the sharp edge 34 of the end head 31 cuts the lock wire or bends the barb of the lock washer, after which unscrew the bolt. Yu or nut. 2 Cp f-crystals, 2 Il.

The invention relates to a hand tool for assembling or disassembling threaded connections and can be used in various fields of mechanical engineering.

The purpose of the invention is the expansion of technological capabilities by ensuring the disassembly of locking threaded connections,

1 shows a hand tool, a general view; figure 2 is a replaceable work item.

The hand tool comprises a handle 1 with pressed inlays 2 and 3, a gear 4 rigidly connected to it with internal teeth, which is a coronal gear of a planetary gear. In the handle 1, a head is mounted for rotation, consisting of a cover 5 and washers 6 and a carrier 7 connected to it.

In inserts 2 and 3, a spindle 8 is rotatably mounted, on the end of which axis 9 with gear 10 is fixed. On axis 9 a head washer 6 is mounted, and its cover 5 is fixed with a lock 11.

The head contains three pairs of interconnected gears 12

and 13 which are engaged

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with gear wheel 4 and gear 10 and rotatably mounted in carrier 7 and washer 6, being planetary accelerator satellites. 50

In the spindle 8, having an internal adjustable stop 14, a percussion mechanism is placed, which is spring-loaded relative to the stop 14 by means of a spring 15, a percussion rod 16 and a position fixing unit of the latter.

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The position fixing unit of the impact rod 16 can be made in the form of covering the latter and spring-loaded relative to the stop 14 by means of a spring 17 of the sleeve 18 with an internal annular groove 19 installed in the axial cavity 20 of the impact rod 16 and the axis 21 spring-loaded along the axis and located in the annular groove 19 and in the radial holes 22 of the impact rod 16 of the balls 23, which interact with the surface of the larger step 24 of the rod 21, which has a smaller step 25.

To limit the longitudinal movement of the impact rod 16, the spindle 8 has a longitudinal groove 26 in which the ends of the pin 27 are pressed into the impact rod 16. To increase the torque, there is a driver 28 that is rigidly connected to the spindle 8 and mounted rotatably relative to the handle one.

 In the impact rod 16, a replaceable working element 30 with an end head 31, having a hexagonal gap 32 and a six-sided chamfer 33, forming a sharp edge 34 corresponding to the profile of the pharynx 32 on the end face, is installed. The replaceable working element 30 can be made with a blade screwdriver (not shown).

Hand tools works as follows.

The tool is taken by the handle 1 and placed with the shed 32 on the head of the bolt 35 up to the stop of the sharp edge 34 in the safety wire 36 or the heel of the lock washer 37. Pressing on the handle: 1 the pressure on the working element 30 is created.

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Claims (2)

Claim 1. A hand tool comprising a handle, a rotatable head mounted therein, a spindle kinematically connected to it, a chuck and a removable working element fixed therein, distinguishing 30 s in that, in order to expand technological capabilities, the spindle is made hollow with focusing on the inner surface, the tool is equipped with a percussion mechanism in the form of a percussion rod and assembly installed in the spindle and spring-loaded relative to the stop. · fixing the position of the latter, and the chuck is fixed at the end of the percussion rod. 10 ^{21 The} tool according to claim 1, characterized in that the shock rod has a blind hole in the end from the abutment side, radial holes on the lateral surface, 15 and the shock position fixation unit is made in the form of a shock rod covering the sleeve and spring-loaded relative to the stop of the sleeve with an inner An annular groove installed in a blind hole and spring loaded along the axis of a rod that is stepwise in diameter and located in an annular groove and radial holes of balls intended for 25 interactions with the surface of a larger stock stage. 3. The tool according to claim 1, wherein the interchangeable working element has an end head with a hexagonal pharynx and an external chamfer forming an acute edge at the end along the pharynx profile.