double-crank mechanism 中文意思是什麼
double-crank mechanism
解釋
雙曲柄機構-
This drilling adopts crank connecting link and walking beam percussion mechanism, which make the drilling possess two percussive functions, normal drilling takes connecting link impact as main mode, when encountering special situation and the connecting link impact can not drill, it can transform into hoisting impact, the stroke length can be modulated, it realizes automatic percussive drilling due to continuous operating of connecting link percussive mechanism, these can enhance drilling efficiency and relieve labor intensity ; it adopts pumping reverse circulation to drain slag, which not only resolves the drilling difficulty in special stratum such as pebble and gravel stratum and hard stratum, but also resolves the problem that the percussive drill ' s efficiency is low ; it adopts spur gear differential mechanism as double cylinders lazy tongs of main hoist, which not only ensures the balance state of drilling tool, but also reduces the mechanical design, and reduces the cost ; the bottom plate traveling motion of this drilling machine adopts walking type ; the drilling tower adopts hydraulic pressure uprising, and reduces the assistant operating time
該鉆機採用曲柄連桿、游梁式沖擊機構，使鉆機具有兩種沖擊功能;正常鉆進以連桿沖擊為主，遇到特殊情況，用連桿沖擊不能鉆進時，可轉為卷揚沖擊，沖程可調，因連桿沖擊機構連續工作，所以實現了自動沖擊鉆進，可提高鉆進效率，減輕勞動強度;採用泵吸反循環的方式排渣，既能有效解決卵礫石地層、堅硬地層等特殊地層鉆進的困難，又很好地解決了沖擊鉆機效率低下的問題;採用直齒圓柱齒輪差速機構作為主卷揚的雙筒同步機構，既保證了鉆具處于平衡狀態，又大大簡化了該機構設計，降低了成本;該鉆機底盤行走移位採用步履式;鉆塔採用液壓起立，減少了輔助作業時間。 -
The main content of this thesis includes the following parts : ( 1 ) in chapter 2, the conditions of link lengths are derived for the side bars to rotate as cranks. two types of cranks are defined and then five - bar linkages are divided into four types, i. e. the full double - crank linkage, the double quasi - crank linkage and the double rocker linkage, and the crank - rocker linkage. the rotational ranges of the two side links for each type of the mechanism are analyzed, and the corresponding numerical algorithm is developed
本文主要做了以下幾方面的工作： （ 1 ）在第二章中，先導出五桿機構兩連架桿可整周轉動的桿長條件，並根據曲柄的存在情況，對五桿機構進行分類，即把五桿機構分成全曲柄機構、雙準曲柄機構、雙搖桿機構和準曲柄-搖桿機構四種類型。 -
Abstract : a new method of generating cutting speed cam is presented using double crank - slide mechanism not only its manufacture accurate is high, and simple but also its character of movement rule is advanced
文摘:提出了一種用雙重曲柄滑塊機構范成加工高速凸輪的新方法，它不僅加工精度高、簡便，而且具有性能優良的運動規律。 -
The design method of double crank mechanism and optimum transmission double crank mechanism are presented according to the conditions of minimum transmission angle, the time ratio, the factor of velocity variety or the minimum size
摘要研究了按照最小傳動角、速度變化系數、行程速比系數以及尺寸和最小等條件設計雙曲柄機構以及最佳傳動雙曲柄機構的方法。 -
Abstract : based on the fast - returning characteristic of a double - crank mechanism, the authors introduced the general problems of the mechanism synthesis according to the stroke ratio k and illustrated the design with the analysis in c program language as well as in graphic
文摘:在雙曲柄機構急回特性研究基礎上，文章介紹了按行程速比系數k綜合雙曲柄機構的一般命題，並通過實例描述了用c語言編程技術實現的解析法求解過程以及圖解綜合過程。 -
Double crank mechanism
雙曲柄機構
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