The paper points out that the reasons for displacement efficiency improving of pressure coring well are as follows : firstly , extra - high injection multiples ; secondly , extra - low critical drive ratio ; thirdly , high velocity fluid ' s big differential pressure drive during the process of coring 得出導(dǎo)致礦場密閉取心井驅(qū)油效率高的原囚:一是特高的注水倍數(shù),二是特低的臨界驅(qū)動比,三是取心過程中高黏度流體的大壓差驅(qū)動。
On the basis of the engage efficiency and lubricious conditions , theoretical transmission efficiency with the different drive ratios ( 1 / 50 and 6 / 31 ) of involute cylinder worm gears is analyzed . at the same time , the change trend of engage efficiency and transmission efficiency with different design parameters is discussed . the experimental investigation on transmission efficiency 從漸開線蝸輪蝸桿傳動的嚙合效率和潤滑條件兩個方面對不同傳動比的漸開線圓柱蝸桿的傳動效率進行理論分析,并通過傳動比分別為1 / 50和6 / 31的漸開線圓柱蝸桿設(shè)計參數(shù)得到蝸桿潤滑條件的理論分析結(jié)果和蝸桿嚙合效率、傳動效率的變化趨勢,同時利用電測法對蝸桿傳動的傳動效率、潤滑油平衡溫度進行測試,將測試數(shù)據(jù)與理論計算結(jié)果進行對比分析,得出理論分析結(jié)果的正確性。
On the condition of “ many - head ” and “ small drive ratio ” , the plane double enveloping hourglass worm can not settle the problem of undercutting and sharpening simultaneously . it has devoted to a new type hourglass worm _ sphere double enveloping hourglass worm . the coordinate system is established according to the frock . the meshing equation and the tooth equation of worm and gear have been developed and the distribution of contact line on gear tooth is analyzed . to evaluate the meshing quality , four meshing quality indexes and five original parameters are put forward . through mass programming computing , the relations between meshing quality and original parameters are derived and depicted by graphs 考慮到平面二次包絡(luò)環(huán)面蝸桿傳動在多頭小傳動比條件下根切與齒頂變尖的矛盾很難同時解決且嚙合性能較差,介紹了一種新型環(huán)面蝸桿傳動? ?球面二次包絡(luò)環(huán)面蝸桿傳動.在研究過程中,根據(jù)工裝建立了坐標系,根據(jù)一二包過程的運動關(guān)系推得了嚙合方程和蝸桿與蝸輪的齒面方程,分析了蝸輪齒面上的接觸線分布.為了評價嚙合性能,提出了4項性能指標和5項原始參數(shù),通過大量編程計算得到了嚙合性能指標與原始參數(shù)之間的關(guān)系,并以圖表直觀的表示
In this paper , the relation between differential driven ratio accuracy and the common normal length error of cylindrical bevel wheel has been found by experimental method , which provides a efficient way for cylindrical bevel wheel manufacturer to control the common normal length error of the wheel 摘要通過實驗研究,尋找出差動傳動比的精度與斜齒圓柱齒輪的公法線長度誤差的關(guān)系,從而為斜齒圓柱齒輪的加工提供一個可以控制斜齒圓柱齒輪公發(fā)線長度誤差的有效方法。
Established the system of coordinates of roll testing , getting the parameters of equation of tooth face by solving the non - linear equations set ; according to the differential geometry and meshing principle , deduce the curvature parameters of tooth face and tooth profile , and get the parameters of instantaneous contact ellipse . emulate the contact trace and contact area of the working tooth face , and drawing the instantaneous drive ratio error curve 建立了克林貝格擺線齒錐齒輪嚙合分析的對滾模型,通過對非線性方程組的迭代求解,得到齒面方程的各個參數(shù);由微分幾何和切齒嚙合原理推導(dǎo)了齒面上齒廓和齒線方向的曲率參數(shù),得到了瞬時接觸橢圓的參數(shù)。根據(jù)設(shè)計參數(shù)和機床調(diào)整參數(shù)繪制了工作齒面的接觸軌跡和接觸區(qū)圖形,并求得了瞬時傳動比的誤差曲線。
drive: vt. (drove , 〔古語〕 drave; dri ...ratio: n. (pl. ratios) 1.比,比率,比值;比例 ...adjustable transmission ratio drive: 可調(diào)傳送比傳動dar drive axle ratio: 驅(qū)動橋減速比drive axle ratio: 驅(qū)動橋減速比drive rest ratio: 運動時間與停止時間之比final drive ratio: 終減速比,后軸主減速比optimum drive ratio: 最優(yōu)驅(qū)動比worm gear drive ratio: 蝸輪傳動比worm wheel drive ratio: 蝸輪傳動比worm-gear drive ratio: 蝸桿傳動比; 蝸輪傳動比by drive: 按驅(qū)動器名; 依磁盤驅(qū)動器代號drive: vt. (drove , 〔古語〕 drave; driven; driving) 1.驅(qū)逐,趕,攆 (along; away; back; down; in; off; out; forward; etc.)。 2.趕(馬車等);駕駛,開(汽車等);用車運,用車送。 3.逼迫,強迫,驅(qū)使,迫使,使不得不。 4.推動;推進;發(fā)動(機器等);運(筆);【無線電】激勵。 5.努力經(jīng)營,促使(成交)。 6.把(釘、樁等)打進 (into); 挖(隧道);鉆(油井等);(在多山地區(qū))開(路等)。 7.推遲,拖延。 8.【棒球】用力擊(球),猛力擲(球);【網(wǎng)球】抽(球);發(fā)(急球);【高爾夫球】從球座打出。 9.從中轟出獵物。 drive away the flies 趕走蒼蠅。 drive off the pirates 擊退海盜。 drive a carriage 趕馬車。 drive a motorcar 開汽車。 drive sb. home 用車子送人回家。 drive a mule 趕騾子。 a submarine driven by nuclear power 核動力驅(qū)動的潛艇。 Wind drives the mill. 風推動磨盤。 drive a nail into the wall 把釘子敲進墻里。 drive a stone at the dog 拿石頭擲狗。 drive a quill 揮毫書寫,拿鵝毛筆寫字。 drive sb. mad with jealousy [to desperation] 使某人嫉妒得發(fā)狂[絕望]。 The heat drove him to rest. 酷熱迫使他休息。 She was driven to admit it. 她被迫承認那件事。 drive a roaring trade 生意興隆。 drive a good bargain 努力做成了一筆好生意。 drive a tunnel through a hill 挖一條穿山隧道。 drive a railroad through a mountainous district 橫貫山區(qū)鋪設(shè)一條鐵路。 drive a wood (打獵時)把林中的獵物哄趕出來。 drive one's departure to the last moment 拖延行期直到最后一刻才動身。 vi. 1.趕馬車;開車;〔美口〕領(lǐng)到駕駛執(zhí)照。 2.乘車,乘車旅行。 3.急駛,猛沖;(在外力推動下)急行。 4.努力爭取。 5.【棒球】用力擊球;猛力擲球;【網(wǎng)球】抽球;發(fā)急球。 learn how to drive 學(xué)開車。 In this state, you can't drive until you are 18 years old. 本州規(guī)定,年滿十八歲方可領(lǐng)駕駛執(zhí)照。 Do you ride or drive? 騎馬去還是開車去? D- ahead! 往前開! drive across the wilderness 開車穿越荒原。 Rain drove into our faces. 雨猛打到我們臉上。 The ship drove before the wind. 船順風急駛。 drive in a carriage 坐馬車。 drive hard to make it a success 努力爭取成功。 drive at 指望,打算,想 (I can't make out what he is driving at. 我不明白他是什么打算)。 drive away at 〔口語〕一心做,拼命做。 drive down 壓低。 drive (sb.) hard 強迫(某人)拼命工作。 drive home 1. (把釘)敲進去。 2. (擺清事實)使領(lǐng)會,使明白,使痛感。 3. 用車把…送到家。 drive into 1. 把…趕進去;(風等把…)吹積成。 2. 把(功課等)灌輸給。 drive on the horn 〔俚語〕亂撳(汽車)喇叭。 let drive (at) 對準…打,照準…發(fā)射 (let drive at the ball 對準球一擊)。 n. 1.驅(qū)逐,趕,攆,(獵物的)哄趕。 2.開車,駕駛馬車[汽車]旅行;旅程。 3.【機械工程】傳動,驅(qū)動;傳動裝置;【無線電】激勵。 4.馬車道,汽車路;(私宅內(nèi)的)環(huán)形車路。 5.驅(qū)使;(被驅(qū)趕著走的)畜群。 6.(木材的)流放,流運;(流運中的)木材。 7.沖力,動力;干勁;努力;魄力;精力。 8.傾向;趨勢。 9.〔美國〕(政治宣傳、募捐等的)運動,熱潮;競爭,廉價推銷。 10.【棒球】猛擲球,猛擊球;【網(wǎng)球】抽球,發(fā)急球。 11.【軍事】猛攻。 12.【心理學(xué)】沖動,本能要求。 take [have, go for] a drive in a motor-car 乘汽車出游。 It's only a few minutes' drive to the airport. 坐車去機場幾分鐘就到了。 a drive of cattle 趕牲畜。 a drive of logs 流放木材。 the hunger drive 吃飽肚子的需求。 a sexual drive 性沖動。 a man with great drive 進取心強的人,干勁大的人。 a propaganda drive 宣傳運動。 start a drive to raise funds 開展一項征募基金的運動。 His paintings has a drive. 他的畫有一種活力。 a drive against Berlin 猛攻柏林。 gear drive 齒輪傳動。 chain [screw] drive 鏈[螺桿]傳動。 front [rear] drive (汽車的)前[后]驅(qū)動。 drive at: 想說,意指; 意思; 用意所在drive by: 推動; 運球過人drive in: 趕進; 敲進; 切入上籃得分; 駛?cè)? 運球突破drive into: 打入; 開進, 敲入, 逼使drive on: 把兩國之間的友好關(guān)系推進到一個新階段; 可開上去的drive to: 開車去drive-by: vt. 飛車而過(開槍射擊)。 2.n. 飛車射擊。 3.adj. 草率從事的。 drive-in: n. 〔美國〕(讓顧客不下汽車即可吃飯、辦事、看戲等的)路邊飯店,路邊銀行;露天電影院。 adj. (飯店、電影院等)路邊服務(wù)式的;露天營業(yè)式的。 Drive-in business far exceeded walk-in business. 露天營業(yè)式的生意遠遠壓倒了室內(nèi)服務(wù)式的生意。 drive-on: adj. (船等)可讓汽車直接開上去的。 with such drive there: 沒有克服不了的困難as ratio: 聯(lián)想感覺比ratio: n. (pl. ratios) 1.比,比率,比值;比例;系數(shù)。 2.【經(jīng)濟學(xué)】復(fù)本位制中金銀的法定比價。 the ratio 3:2 (讀作 the ratio of three to two )3對2之比。 arithmetical ratio 公差,算術(shù)比。 direct ratio 正比。 inverse [reciprocal] ratio反比。 current ratio 電流比,電流變換系數(shù)。 nutritive ratio 營養(yǎng)率。 vt. 1.用比例方式表達;求出…的比值;使…成比例。 2.將(相片)按比例放大或縮小。