牙輪鉆進 的英文怎麼說
中文拼音 [yálúnzhēnjìn]
牙輪鉆進
英文
roller boring-
Based on the tribological principle and the theory of contact mechanics, it is feasible to adopt curvature - changing structure in the rock - bit journal bearing system. the structure and coupling relationship of curvature - changing journal bearing under the condition without friction have been analyzed and three kinds of sub - form structure configurations, namely, the pseudo - curvature - changing structure, the conformable curvature - changing structure, and the clearance curvature - changing structure, been differentiated according to the contacting features. the shape optimization and pre - running - in regulations of the contact surface of curvature - changing journal bearing under friction condition have been established. the results of rock bit journal bearing test indicate that the tribological behavior of the bearing can be effectively improved by curvature change based on both designing and pre - running - in
基於摩擦學原理和接觸力學理論，提出了可在牙輪鉆頭滑動軸承中採用變曲率結構.在不考慮摩擦的情況下，就結構設計和配合關系等問題進行了分析討論，劃分了準變曲率、吻合變曲率以及間隙變曲率等3種結構形式；針對考慮摩擦時的變曲率結構，提出了接觸形狀優化和預磨合的實施方案.鉆頭軸承試驗結果表明，無論是預設計變曲率還是預磨合變曲率，都能改善軸承摩擦副的摩擦學特性，因而值得進一步研究和推廣14 drilling with cone ( drag ) bit in the section
此段地層採用牙輪（刮刀）鉆頭鉆進。To enhance the reliability of bearing seal of cone bit, this paper plans to adopt face - radial combination sealing structures ; that is to say, end - face and radial seal are arranged in one bit simultaneously. the nonlinear finite element method is applied to analyze and optimize the design of sealing structures
為了提高牙輪鉆頭軸承密封的可靠性，本文設計採用端面-徑向組合密封結構，即在一隻鉆頭中同時布置端面和徑向密封，採用非線性有限元方法對密封結構進行分析和優化。By means of the software of pro / e we studied the movement of the bit and obtained some data reports about different parameter bit. in the environment of visual basic the trace program can compute the well - bottom outline. it also can draw the trace and the velocity curve that the teeth scrape the well bottom
分析方法是在pro / e中對試驗鉆頭進行運動模擬，得到不同結構參數和傳動比的鉆頭運動的數據文件，然後進入用visualbasic高級語言編制的異形牙輪單牙輪鉆頭分析軟體中，計算出鉆頭的井底輪廓曲線，並繪制鉆頭井底軌跡和牙齒刮切井底的速度曲線。分享友人