SU1500879A1 - Method of checking the tension of moving member provided with a drive from a driven drum - Google Patents

Abstract

The invention relates to a measurement technique and can be used to determine the tension of a flexible organ in various installations driven by a driven drum. The aim of the invention is to improve the accuracy. The goal is achieved in that the amount of movement of the pressure roller acting on the flexible member 1 is selected depending on the radius of the driven drum 2 and the distance between the guide rollers. The tension force of the flexible member 1 is determined by the force exerted on the pressure roller by means of a load gauge. 2 Il.

Description

The invention relates to the technique of measuring the tension of a moving flexible tract (DHT), namely, the study of the operation of a well equipped with a long stroke pumping well ycTaHOBKOji, by determining the tension of a flexible tract when a fluid is pumped out of a well and can be used for determination of tension of a flexible traction body in lifting machines driven by a driven drum in other parts

Noah pump unit performs the following operations. The force-measuring device is installed at the mouth of the well in such a way that its two guide rollers are on one side of the moving flexible body of the long-stroke deep-well pumping unit, and 10 its pressure roller would be located on the other side of the moving flexible body. The radius R of the driven drum of the moving flexure body of the long stroke is measured

national households, for example, in mines - 5 deep-well pumping installations, fixed lifts, drilling rigs, foniculers, - cableways, elevators, winches, cranes, etc.

The purpose of the invention is to improve accuracy.

FIG. 1 shows an installation diagram driven by a driven drum; Fig. 2 shows a circuit for a load sensor. In the device, the moving flexible body 1 is a rigid strip of steel with a section of 45 x 1.5 mm. Moving flexible traction device 1 is wound on a driven drum.

2. As a measuring device used measuring device, including the support frame

3, pivotally fixed on it two guide rollers 4, a pressure device 5, connected via a media 6 to a pressure roller 7, a Media 6 is connected to the measuring device 8. The support frame 3 is provided with a scale bar 9 located

in the middle between the guide rollers 4. Strength device is installed at the wellhead 10, the axis of the lower guide roller 4 is connected by the hinge 11 with the axis of the installation slot 12, the Moving flexible traction body 1 is covered on one side by the pressure roller 7 and on the other side two guide rollers 4,

In order to implement the method of controlling the tension of the moving flexible traction member of the long stroke depth, the distance 1 between the axes of the guide rollers of the force-measuring device. According to the formula h R 20

determine the value of stre

ly sag h moving flexible traction body. The pressure roller of the force-measuring device is moved for forced deflection of the moving body of the flexible traction body by the amount of the deflection arrow determined by the above formula.

After the forced deflection of the moving flexible body

30 for the amount of the deflection h h register the tension of the DHT with a measuring device.

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Claims (1)

Invention Formula The method of controlling the tension of a moving organ driven by a driven drum, which consists in bending the organ in the force-measuring device between the two guide rollers by moving the pressure roller and register the force applied to the pressure roller, which is accuracy, the amount of movement of the pressure roller h is determined from the equation h - R -I l R2 i, 50 where R is the radius of the driven drum, 1 is the distance between the axes of the guide rollers. 0879 4 Noah pump unit performs the following operations. The force-measuring device is installed at the mouth of the well in such a way that its two guide rollers are on one side of the moving flexible body of the long-stroke deep-well pumping unit, and 10 its pressure roller would be located on the other side of the moving flexible body. The radius R of the driven drum of the moving flexure body of the long stroke is measured 5 deep-well pumping unit; Determine the distance 1 between the axes of the guide rollers of the load-measuring device. According to the formula h R 20 Determine the magnitude of the deflection arrow h of the moving flexible body. The pressure roller of the force-measuring device is moved for forced deflection of the moving body of the flexible traction body by the amount of the deflection arrow determined by the above formula. After the forced deflection of the moving flexible body 30 for the amount of the deflection h h register the tension of the DHT with a measuring device. Invention Formula The method of controlling the tension of a moving organ driven by a driven drum, which consists in bending the organ in the force-measuring device between the two guide rollers by moving the pressure roller and register the force applied to the pressure roller, which is accuracy, the amount of movement of the pressure roller h is determined from the equation h - R -I l R2 i, 50 where R is the radius of the driven drum, 1 is the distance between the axes of the guide rollers. FIG. I