SU1315280A1 - Nut driver - Google Patents

Abstract

The invention relates to the field of engineering. The aim of the invention is to expand the technological capabilities of the wrench. The wrench contains a hydraulic motor 5 installed inside the housing 1, the stator 6 of which is made inside the piston 7 with the rod 3 .. about 28 29 with asymmetric axes with holes 9 and 10, the rotor 11 is rigidly connected through the rod 8 with the spindle 12 and the working head 13, two guide rods 14 and 15, respectively, passed through openings 9 and 10 of piston 7 and rigidly fixed in end cages 2 and 3. Piston 7 divides the internal cavity of housing 1 into over-piston and sub-piston hermetic cavities designed to be filled with a working fluid. The hydraulic system of the wrench consists of high-pressure flexible hoses 18, 19, 20 and 21, high-pressure pipelines 22, 23, 24 and 25, hydraulic pump 26 and by-pass valve 27. High pressure flexible hoses 28 and 29 are located inside the piston cavity of the housing 1. supply under pressure of the working fluid to the hydraulic motor 5. 2 Il. (L Sde 01 CX)

Description

113

The invention relates to mechanical engineering, in particular to an assembly mechanized tool, and can be used when screwing or unscrewing threaded connections.

The aim of the invention is to expand the technological capabilities of the wrench.

FIG. 1 depicts a wrench, a general view; in fig. 2- wrench structure diagram.

The wrench contains a cylindrical housing 1 with end caps 2 and 3 and a handle 4. The wrench is equipped with a hydraulic jiOTopoM 5 installed inside the housing 1, the stator 6 of which is made in the form of a piston 7 with a rod 8 with asymmetrical holes 9 and 10, the rotor I is rigidly connected through the rod 8 with the spindle 12 and the working head 13, two Guide rods 14 and 15, passed respectively through the openings 9 and 10 of the piston 7 and rigidly fixed in the end caps 2 and 3. The piston 7 divides the internal cavity of the housing 1 into a piston 16 and 17 podporshnevu hermetic The bridges intended for filling them with a working fluid. The hydraulic system of the wrench consists of flexible high-pressure hoses 18-21 and pipelines. 22-25 high pressure, hydraulic pump 26 and relief valve 27. High pressure hoses 28 and 29 are located inside the piston cavity G / casing 1, which are designed to supply pressure 5 to the hydraulic motor 5 under pressure. the hydraulic system has hydraulic distributors 31-33 with control from electromagnets and spring return and a multiplier 34.

The wrench works as follows.

To bring the rod 8 of the hydraulic motor 5 into rotation, the valve 33 switches to one of the positions (a or c) depending on the direction of rotation. The working fluid through the hydraulic distributors 32 and 33 through the pipelines 22 and 23 of high pressure and flexible hoses 20 and 21 high

0 2

This pressure is applied to the hydraulic motor 5. To tighten the threaded joint. the valve 32 switches to the position b of the working fluid from

the hydraulic pump 26 enters through the pipeline 24 into the low-pressure cavity of the multiplier 34, a-from the high-pressure cavity of the multiplier. 34 to hydraulic motor 5. When the threaded joint is tightened, hydraulic distributor 32 again switches to position a, the low pressure cavity of multiplier 34 is connected to the drain, and the working fluid enters the high pressure cavity and moves the plunger of multiplier 34 to its original position. To obtain reciprocating movement of the hydraulic motor 5 hydraulic distributor

31 switches to one of the positions (d and c) depending on the direction of movement. The working fluid from the hydraulic pump 26 enters the supra piston 16 or sub piston 17 cavities of the housing i through the distributor 31 through pipelines and flexible hoses 18 or 1.9, to prevent the piston 7 (stator 6) of the hydraulic motor 5 from turning around

their axes in the process of reciprocating movement are used

guide rods 14 and 15. The invention allows, without the use of mechanical gears, such as a gearbox, to simultaneously provide two types of movement - rotational and reciprocating.

Formula of invention

. A wrench containing a cylindrical body with end clamps and a handle, a piston with a rod inside it, designed to interact with the latter spindle

The working head and control system, characterized in that, in order to expand technological capabilities, it is equipped with a hydraulic motor installed in the housing, the stator of which is made in the vpde of the piston with asymmetrical holes, the rotor is rigidly connected through a rod with a spindle by two guide rods, passed through asymmetrical holes holes and rigidly fixed in the end krSh1kah.

Editor A.Vorovich

Compiled by V.Matvienko

Tehred M. Khodanich Proofreader T. Kolb

Order 2257/16. Circulation 953 Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, Projecto st., 4

Claims (1)

Claim . A wrench containing a cylindrical housing with end caps and a handle, a piston with a rod placed in it, designed to interact with the latter spindle with a working head and a control system, characterized in that, in order to expand technological capabilities, it is equipped with a hydraulic motor installed in the housing, a stator which is made in the form of a piston with asymmetric holes, the rotor is rigidly connected through the rod to the spindle by two guide rods passed through asymmetric holes and rigidly fixed in end caps. Figure 1