钢丝绳

Last, an analysis and introduction is made for variety of the steel wire rope pre-pull machines.

再次，本文的最大贡献是对钢丝绳结构伸长理论和预张拉方法作了初步系统的研究，首次在国内提出了预张拉工艺和预张拉机的设计思想，为提高钢丝绳实物质量提供了切实可行的方法。

A kind of new method for daily checking wire rope is introduced, which checks the state of wire rope by means of a circuit consisting of one electrical source, one amperemeter, two connecting buttons, a piece of conducting wire and one thermometer.

介绍了一种日检钢丝绳的新方法，该方法通过一个由电源，电流表，接线扣，导线和温度计组成的电路来检查钢丝绳的状况。

Hoist rope for electrical hoists and lifting devices with multiple part reeving heights or twin hoist systems with left and right hand ropes traction and haulback rope for scrapers and construction hoists,hoist rope for cranes,tag line and guide line for clam shells,trolley rope for horizontal booms.

钢丝绳电动葫芦和多穿绳高地或有左，右手绳索双葫芦起重设备系统的一部分牵引和haulback的刮削器和施工升降机，起重机钢丝绳绳，口号和指导蚌壳，小车为。

5 To check all wire ropes as often as necessary to maintain an adequate factor of safety, to equalise the tension on all hoisting ropes.

必要时经常检查所有的钢丝绳，以确保设备足够安全和所有曳引钢丝绳张力保持平衡。

On the base of above, SWPU united by the Baoji Petroleum Mining Machinery Corporation launched the research of "Study on the wire rope enwinding system of the roller in the ZJ70D drill rig". After this study, they want to make out the improving proposal for the wire rope enwinding system in that rig, so as to make that kind of equipment been used to deep and ultra-deep drilling operation.

基于此，西南石油大学与宝鸡石油机械有限公司合作开展&ZJ70D钻机绞车滚筒缠绳系统力学建模与分析&项目研究，旨在根据深井、超深井作业实际，提出目前钻机滚筒钢丝绳缠绕系统结构改进方案，以求解决目前普遍存在的深井、超深井作业中钢丝绳缠绕乱绳、夹绳事故。

To solve the problem,we redesigned pulley to keep the wheel of pulley always aplomb,and we also lathed the groove deeper to ensure the wire never come out.

经过工程师现场检查，重新设计了滑轮机构，可以始终保证钢丝绳与滑轮呈垂直的角度，另外加深了滑轮的U型槽，保证钢丝绳始终在槽中运行。

The main product has ordinary, the force the tubular, bears the acid and alkali, thermostable, is cold resistant, anti-burning guards against rends and so on the conveyor belt.

主要产品有普通型、强力型、管状型、耐酸碱、耐高温、耐寒型、阻燃型(钢丝绳、PVC、PVG)、防撕裂型、花纹输送带(钢丝绳芯输送带上凸、下凹型)等。

Wire rope hoist should firmly anchor the cable in place and regular checks to drag anchor and rope intact and found that immediately ruled out, to ensure safety.

卷扬机要用钢丝绳牢固地索在地锚上，并经常检查地锚及拖拉钢丝绳的完好程度，发现问题立即排除，确保安全。

The determining method of the steel rope tension and use result of the steel rope tension balance device are introduced.

介绍了钢丝绳张力的测定方法及钢丝绳张力平衡装置的应用效果。

Falling hard matters on Kelly guide slewing bearing of erecting Kelly bar will cause strapped bar or rod blocking.

塞物带杆，①钻杆与主卷扬连接的提引器安装用钢丝绳卡要选用合格产品，钢丝绳卡断裂碎块会落入钻杆间隙将管卡死，造成带杆、卡杆。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐