Measuring instrument for the axial position of the r-groove of the roller cone bit for oil

Abstract

The invention relates to a special instrument for measuring the cone hole of a cone bit, in particular to an instrument for measuring the axial position of the R groove of the cone hole of a cone bit for oil, comprising a structural main body, a pushing cone and a float provided. The structural main body is provided with a screw rod, The screw rotates through the handle and drives the push cone to move down. The three slopes of the push cone cooperate with the slopes of the three probe bodies. The dial indicator is clamped on the rotating arm through the split sleeve and the fixing screw. The arm shaft is matched so that the rotating arm can rotate freely around the rotating arm axis. The rotating arm cannot have axial accumulation on the rotating arm axis. Adjust the thickness of the adjusting pad so that the axial accumulation of the rotating arm is 0, but it cannot be locked. , the rotating arm can freely rotate to any position that needs to be measured, and the three probe bodies and the three probe heads must be kept on the same radial plane. The beneficial effect is that the axial position of the R groove of the roller cone hole of the roller cone bit can be accurately measured, the quality and performance of the roller cone bit can be improved, and the service life of the roller cone bit can be prolonged.

Description

technical field [0001] The invention relates to a special instrument for measuring the cone hole of a cone bit, in particular to an instrument for measuring the axial position of the R groove of the cone hole of the oil-used cone bit. technical background [0002] At present, the roller cone bit used in oil drilling and other mining drilling is used as a steel ball for locking the axial positioning position of the roller cone and the palm shaft. Its runway is similar to that of ordinary rolling bearings, generally called R groove. The accuracy of the axial position is an important technical parameter of the bearing part of the roller cone bit, and its accuracy is directly related to the sealing effect of the bearing of the roller cone bit. The current conventional measuring instruments cannot accurately measure the axial position of the R groove of the cone hole. In the industry, a measuring instrument is needed to solve this problem. The R-groove axial position measuring i...

AI Technical Summary

Problems solved by technology

However, this kind of measuring instrument currently on the market cannot accurately measure the exact value of the axial position of the R groove of the cone hole due to reasons such as technical materials, which seriously affects the sealing effect of the bearing, and the sealing effect of the bearing has a great impact on the bearing. The use time plays a decisive role

The sealing effect is not good or invalid, and the drilling fluid carries impurities such as cuttings into the bearing cavity, the bearing wears out quickly, the roller cone bit is scrapped, and even downhole accidents occur

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