SU1490509A1 - Rotary torque meter - Google Patents

Abstract

The invention relates to a measurement technique and can be used to measure the torque on a rotor of drilling rigs with chain and cardan drives. The aim of the invention is to increase maintainability by making the hydraulic force meter 12 detachable, consisting of two parts interconnected by channels 20 and 21, the last of which is connected through fitting 22 and pipe 23 to the secondary device 24. 2 Il.

Description

The invention relates to a measurement technique and can be used to measure the torque on a rotor of drilling rigs with chain and cardan drives.

The purpose of the invention is to increase the maintainability of the rotor torque meter.

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This rotation and the ball screw mechanism 2 generates an axial force proportional to the torque. In turn, the axial force causes axial movement of the support disk 10, which, acting on the diaphragm 11, creates pressure in the chambers of the hydraulic load cell 12, which

Figure 1 shows the rotor moment Q increases in proportion to the actual meter; figure 2 - section aa in figure 1.

The rotor torque meter contains a driven shaft 1, made in the form of a screw of a ball screw screw 2, which transforms the moment into an axial force. The nut 3 of the ball screw mechanism 2 is connected through the ball pin A to the leading coupling half 5, on the outer surface of which there is an asterisk 20 installed for the chain drive of the rotor of the drilling rig. For the cardan drive of the rotor, the leading coupling half 5 is bolted 7 to the flange 8. On

This torque, as a result of which the hydraulic signal through the conduit 23 is transmitted to the secondary device 24, the device 24 allows visual control of the moment. When taking a moment, i.e. under the action of fluid pressure, the elements of the rotor torque meter return to their original position,

 During the long-term operation of the rotor torque meter, designed for 8 years of service, the sensitive part of the hydraulic meter 12 — the nutsector of the nut 3 — is subjected to the greatest wear-resistant under-25 fragment 11 (aging of rubber, pistons

etc.), which leads to failure of the rotary torque meter and requires its repair. To replace outdated diaphragms, it is necessary to remove the hydraulic force meter without disassembling the entire rotor torque meter. To do this, it is enough to disconnect from the hydraulic load cell 12, which consists of two parts, the channels 20 and 21 and the pipe 23, unscrew the bolts 19, remove both halves and replace the failed diaphragms 11. The repaired hydraulic load meter 12 is put in place. and bolts 19 are attached to the rotor 15, and channels 20 and 21, clamp 22 and conduit 23 are attached to its half of the rotor.

hip 9, mating with the supporting disk 10, the supporting disk 10 with its end surface rests on the rubber diaphragm 11 of the hydraulic load cell 12, and on the outer surface of the interface with the stationary sleeve 13.

The rotor torque meter is mounted on the high-speed shaft 14 of the rotor 15 of the drilling rig on the key 16. It is held from axial displacement by a stop flange 17 and bolts 18. The fixed sleeve 13 is bolted 19 to the rotor 15.

Hydraulic force measuring 12, is made detachable and consists of two parts. The chambers of the hydraulic force measuring device 12 are interconnected by channels 20 and 21. A connection 22 is connected to the channel 21, which is connected via a pipe 23 to the secondary device 24.

The rotary torque meter works in a manner that is right.

Before operating, the hydraulic system of the rotary torque meter is filled with a working fluid with some initial pressure.

When the rotor is turned on, the force from the drive mechanism is transmitted through an asterisk 6 or flange 8 to the leading coupling half 5, and then through the ball tab 4 to the nut 3 of the ball screw mechanism 2. Due to

This torque, as a result of which the hydraulic signal through the conduit 23 is transmitted to the secondary device 24, the device 24 allows visual control of the moment. When taking a moment, i.e. under the action of fluid pressure, the elements of the rotor torque meter return to their original position,

 During the long-term operation of the rotor torque meter, designed for 8 years of service, the sensitive part of the hydraulic meter 12 - the diaphragm 11 (rubber aging, pistons

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five

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etc.), which leads to failure of the rotary torque meter and requires its repair. To replace outdated diaphragms, it is necessary to remove the hydraulic force meter without disassembling the entire rotor torque meter. To do this, it is enough to disconnect from the hydraulic load cell 12, which consists of two parts, the channels 20 and 21 and the pipe 23, unscrew the bolts 19, remove both halves and replace the failed diaphragms 11. The repaired hydraulic load meter 12 is put in place. and bolts 19 are attached to the rotor 15, and channels 20 and 21, clamp 22 and conduit 23 are attached to its half of the rotor.

Claims (1)

I Formula of invention The rotor torque meter containing the driving and driven bushes connected by a ball screw drive, a rolling bearing and a gauge that includes the 1e between them, a hollow body, a diaphragm and a body with a choke, a secondary device, so that, in order to improve maintainability, the meter is made of two parts interconnected by channels, one of which is connected through a choke with a secondary device. 1S