SU1456758A1 - Device for checking run-out of parts - Google Patents

Abstract

The invention relates to a measurement technique, to means of controlling the beating of bodies of a Vracene. The aim of the invention is to expand the range of monitored parts by providing control of the case pipes of the squaring devices — parts of small internal diameter and considerable length. The measuring unit of the device for monitoring the beating of parts is made in the form of a clamp-type gripper 2 with two handles 3, one of which is fixed with a load of fixation load 5. On the axis 6 of the oval-shaped gripper 2 the scale 7 is rigidly fixed and mounted with the possibility of turning axis 6 arrow 8. The controlled pipe is installed and the base assembly, under the action of its own weight, it occupies a position that is characterized (it is oriented by a flattened wall (i.e. the direction of displacement of the center t ) down. The clamp 2 is mounted on a pipe which, under the action of load 5, takes an inclined position. The deviation of the arrow 8 relative to the scale 7 determines the eccentricity of the inner channel, the beating of the inner and outer surfaces and the strength of the pipe. 3 ill. i 4 U1 O SP 00

Description

114

The invention relates to a measurement technique, to means for monitoring the beatings of bodies of revolution, in particular -casing pipes downhole, burs.

The purpose of the invention is to expand the range of controlled parts by providing control of the casing pipes of downhole devices of parts of small internal diameter and considerable length.

1 shows a device for monitoring the beat of parts, a general view; fig 2 is the same in the process. measurements; on fig.Z - the position of the center of the body of the controlled pipe.

A device for controlling the beat of parts contains a base unit 1 and a measuring unit. The base unit 1 is a flat horizontal base, and to improve sensitivity, the base unit 1 can be made in the form of two horizontal parallel blades. The measuring unit is made in the form of a pinch grip 2 with two handles 3, spring-loaded 4 with respect to each other. On one of the handle 3 is mounted with the possibility of movement and fixation relative to it - the load 5, The scale 6 of the pinch-shaped gripper 2 is rigidly fixed and fixed rotatably about the axis 6. Arrow 8 with ut 9 on its beam, Tightening grip 2 is designed for installation on a controlled pipe 10

Since the controlled pipe tube 10 is made with an internal, surface relative to the external one, the center of gravity of the section is offset relative to the axis-O in the opposite direction from the direction of the channel displacement to the side. This means that in any initial position, the pipe. 10, in its lying state, assumes, like Vanka-vstanka, the position shown in FIG. 3, characterized by the directionality of the thickened wall (direction of displacement of the center of gravity) downwards. V, it deviates by some angle until the applied moment is balanced by the moment from the center of gravity eccentricity. At different values of ex

0

five

five

30 5

0 j

50

centricity of the center of gravity and the same disturbing torque, the angle of deviation of different, therefore, the angle of deviation can be judged on the magnitude of the eccentricity, t, e, on the magnitude of the relative beating of the inner and outer surfaces of the test pipe 10,

The device works as follows.

A monitored pipe 10 is installed on the base unit 1, which, under the action of its own weight, occupies the position shown in Fig. 3, On the pipe 10 in the middle part, the grip 2 is vertically fixed. At the same time, the arrow B is also under the action of the stabilizer 9 in a vertical position. After this, the device under the action of load 5 inclines and occupies an inclined position (FIG. 2), however, the arrow 8 remains in an upright position. The eccentricity of the inner channel, the beating of the inner and outer surfaces is judged by the deviation of the arrow 8 relative to the scale 7 of the strength of the pipe 10. If the scale 7 of the device is calibrated directly in units of pressure, the pipe 10 is immediately, after the completion of the control operation, sent for pressure testing with the appropriate pressure. If the scale of 7 is graduated in other units, for example, in millimeters of exciteness or beating, a corresponding conversion of these units into strength properties is required.

Due to the presence of a connection between the amount of beats of the inner and outer surfaces of the body pipe 10 and the displacement of the center of gravity of its cross section, the openness of the pipe 10 in the thinnest place can be determined not by directly measuring the wall wall (beating size), which is difficult due to the elongated shape of the pipe , and indirectly - with the help of measuring the magnitude of the torque arising from the indicated displacement of the center of gravity of the pipe 10, the device, calibrated in units of pressure, allows one to sort out the based on the strength capabilities and predict the allowable test pressure,

Claims (1)

Invention Formula A device for controlling the beat of parts containing a base unit and a measuring unit, characterized in that, in order to expand the nomenclature of the parts to be monitored, by ensuring the monitoring of the casing pipes of the downhole tools, the measuring unit is designed to be installed on the controlled pipe clamp grip with two handles, spring-loaded relative to each other, a load mounted on one of the handles with the ability to move and fix relative to it, a scale rigidly fixed on the capture axis, and an arrow mounted on the capture axis turning relative to her. ten //////// // l / y //// // at y. g NSSSSS SSS: SSS not J