The crane consists of four main parts, namely, the boxtype frame bridge, trolley traveling mechanism, crab and electric equipment.

本起重機(jī)由箱形橋架，大車運(yùn)行機(jī)構(gòu)九九精品国模私拍在线观看，小車，電氣設(shè)備四部分構(gòu)成。

The paper designed and calculates the driving section and transferring section, hoisting and balancing arms, tower cap and dolly of the rotary tower crane experimental system.

這一試驗(yàn)臺(tái)的建立對(duì)實(shí)現(xiàn)起重機(jī)自動(dòng)化免费费一级真人A片，提高工作效率、安全性精品国产99久、可靠性有著重要的意義和價(jià)值手机免费看黄在线高清视频。

Along with the rapid development of building industry, tier and high buildings in big and middling cities have been increasing, the tower crane has been the main construction machine in the upright transportation of tier and high buildings.

隨著建筑業(yè)的不斷發(fā)展，各大中城市多層和高層建筑不斷增多亚洲天堂aⅴ在线，塔式起重機(jī)已成為多層和高層建筑施工垂直運(yùn)輸?shù)闹鲃?dòng)脈免费久久视频。

Is a professional production, marketing and logistics handling equipment crane hoisting tool company, leading products: hydraulic loader, hydraulic car pile high, the claw-jack; handling of small tanks, single-track car (NRK, hand-pushed), Hanging steel tweezers, magnetic hanging, tension, lifting loading zone; vehicle such as traction with more than 10 series over 30 kinds of products.

是一家專業(yè)生產(chǎn)、銷售物流搬運(yùn)設(shè)備及起重吊裝工具的公司中文黄色字幕网站，主導(dǎo)產(chǎn)品有：液壓搬運(yùn)車一级二级黄色免费城人特级黄色视频、液壓堆高車、爪式千斤頂日本少妇一级免费黄色视频；搬運(yùn)小坦克韩国午夜理伦三级20202、單軌跑車、鋼板吊鉗激情性欧美图片小说、磁吊免费。色婬、拉緊器、起重吊裝帶日韩精品毛色视频在线观看；汽車牽引帶等十幾個(gè)系列三十多種產(chǎn)品美女操逼视频污网站。

With protected stuff at colligation part in order to protect tail shaft , send the tail shaft into the stern tube slowly with manual crane , during the process , we should align the tail shaft and stern tube carefully in order to protect the impact between the stern tube bearing and the screw of tail shaft .

起吊艉軸并送入艉管內(nèi)：在綁扎鋼絲繩的部分包上麻包布以保護(hù)艉軸后，即可起吊艉軸欧美也操也射视频；然后用葫蘆將艉軸慢慢送入艉管內(nèi)達(dá)到預(yù)定位置来部一级毛片，在送進(jìn)過(guò)程中，要注意將艉軸對(duì)準(zhǔn)艉管,,草草影院欧美视频，防止艉軸承和艉軸螺紋與之相碰全网男人的天堂网站。

Adjust cam of the height limiter beside the hoisting drum, so as to hook the limited height(the point of the root of tower crane jib frame should reduce 2.5m, it's the limited height), enable the limit switch, the hook can not hoist, then if the hook can't act, then start it again just load onto the ground.

2調(diào)整起升卷筒旁邊高度限位器中的凸輪，使吊鉤達(dá)到預(yù)定的極限高度(起重機(jī)臂架根部鉸點(diǎn)高度減去 2.5 米91精品国产91热久久久久福利，即為預(yù)定極限高度)時(shí)人人插人人操人人摸，限位開(kāi)關(guān)動(dòng)作，吊鉤不能上升久久夜色精品国产高清不卡，再啟動(dòng)時(shí)只能下降大学生女毛片在线现观看。

Stand clear of the swinging boom of the crane.

不要走近轉(zhuǎn)動(dòng)的超重機(jī)吊桿。

Equipped with a large yet simplistic crane and swing bar, its creators had the foresight to take the time out of a captains stay at the docks, allowing for a slight increase in trade throughput.

由於碼頭設(shè)置簡(jiǎn)易大型吊車和游戲桿情网址，可以極大加快貨物裝卸效率91自拍视频国产，進(jìn)而有效提高了港口吞吐量。

In a case to one side, two terracotta musicians sit alongside a goose, a swan and a crane.

在一邊的展覽框里欧美精品品综合一区二区，兩名陶塑樂(lè)師正坐在那里另类视频区第1页，旁邊還有家鵝黄色录像黄色网站黄色视频、天鵝和仙鶴。

Taking QY80 auto-crane's rocker mechanism of four一axle steering system asexample,this paper presents a new method which applies multibedy system Kinematics theory toanalyse mechanism's spatial motion, builds up mathematical model of optirnization for the rochermechanism of steering System, and chooses minimization adoptive random search method to developan optimization design microcomputer program,Using aboving method and program , this paper fi-nally optimlzes each design Variable, and obtains better resul...

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