起重机

Our company mainly produces and runs brand"Sheng Zhong "electric calabash,singal- clouble bridge derrick,doorlike derrick 、building bridges maching、Press-ganging maching 、port crane and aviding explosive.

本公司主要从事&盛重&牌电动葫芦，单、双梁桥、门式起重机，抓斗，架桥机，港口起重机及防爆系列起重机的制造、销售。

Many years of specialistic engineering experience, together with excellent CNC machines, good testing facilities and the continuous care taken to maintain large stocks of standard components, all contribute to our success.

在移动起重机，港口及船用起重机连接系统部件领域，我公司是一家重要的，拥有业界领导品牌的供应商，是许多起重机和钢丝绳领域内第一流客户的首选供应商之一。

By way of eight experiments and statistical analysis of loads of overhead crane in actual usese, we have got that the lifing load is stationary, normal and homogeneous Poisson, and got distribution function of lifting load, the load spectrum factor, the rain-flow counting results of stresses and statistical results of location of the trolly, that will provide a large number of datas for reliabilitic design of overhead crane.

通过对八台桥式起重机现场使用载荷的实测试验与统计分析，得出桥式起重机吊重载荷的平稳性、正态性、齐次泊松性、幅值分布、载荷谱系数，以及应力的雨流计数结果、小车位移分布等，为桥式起重机可靠性设计提供了大量的统计数据。

As main equipment for steel smelting production, ladle crane s are used to move steel or iron ladles in steel smelting workshop with high temperature and a 1ot of dust.

铸造起重机是炼钢工艺中的主要设备，用于炼钢车间吊运钢水或铁水，在高温、多尘的恶劣环境中工作，本文介绍了铸造起重机的种类、特点，各种机型的优缺点以及对铸造起重机的特殊要求等，供设计者和使用者参考。

Research on the nonlinear algorithms about the flexible members of luffing system at first. The flexible members of luffing system are one of the most important members to support loads.

同时在此基础上建立了履带起重机总体设计的体系，分析了履带起重机计算机辅助设计系统的体系结构与功能，研制了其中最需要首先开发的子系统——履带起重机总体设计的软件系统，并应用于实践。

With the uprising movement of Chinese railways and progress of electric railroad, the small tonnage full hydraulic railway crane becomes more urgently needed for development with characteristics of fast speed self-propelled running and high speed in train formation, hence, the high level requirement is resulted in terms of train formation and self-propelled running speed of railway crane. For 20t universal railway crane, features such as running with the load and weight lifting due to high hauling capacity are required besides hook lifting, bucket grabbing and magnetic panel lifting.

随着我国铁路事业的不断壮大，电气化铁路的发展，开发小吨位的自力走行速度快、回送速度高，能满足电气化线路的立杆作业的全液压铁路起重机迫在眉睫，对铁路起重机的回送和自力走行速度有了更高的要求。20t多功能铁路起重机，即具有吊钩、抓斗、磁盘吊3种功能外，还具有一定带载走行以及因牵引能力大也可作为吊车机使用。

Bottom-slewing crane with luffing jib and towel' with backstays,- Bottom slewmg saddle jih cranes with out backstays, Bottom-slewing cranes with luffing jib

与俯仰运动三角帆的底部旋转与后牵索的起重机和towel，-与后牵索的底下slewmg马鞍jih起重机，与俯仰运动三角帆的底部旋转起重机

Is the lifting of heavy machinery member of the Association, specializes in double-beam cranes, gantry crane, single-beam cranes, electric hoist, grab, the bridge machine, loading bridge, a track machine, hoist and explosion-proof , Frequency, insulation, electrical, metallurgical casting series of design and manufacture and installation.

正大起重有限公司是中国重型机械协会会员单位，专业从事双梁起重机、门式起重机、单梁起重机、电动葫芦、抓斗、架桥机、装卸桥、过轨机、启闭机及防爆、变频、绝缘、电磁、冶金铸造等系列的设计制造及安装。

The main products: the national standard series of single, double-beam bridge crane, gantry crane, Elevator, the national standard DT-DY series of conveyor belt, screw conveyor, bucket elevator, rigid impeller feeder, the feeder disk Machine, grab, light crane, multi-purpose portal cranes, chain-Doumen Unloading machine, loading machines, Fudiao, chain-Doo Unloading, quay cranes port facilities and various large pieces of metal structures and other non-standard, widely used , Complete specifications.

国家标准系列单、双梁桥式起重机、门式起重机、电梯、国家标准系列DT型DY型胶带输送机、螺旋输送机、斗式提升机、刚性叶轮给料机、圆盘给料机、抓斗、轻型装卸桥、多用途门座起重机、链斗门式卸车机、装船机、浮吊、链斗卸车机、岸吊港口设备及各种大型非标准金属结构件等，用途广泛，规格齐全。

East brand products mainly single, double bridge, gantry crane; insulation bridge crane; explosion-proof bridge crane; wire rope electric hoist, and so on and accessories (wheels, of drum group, hook group, pulley blocks, Coupling), and other top-five 600 species.

东起牌产品主要是单、双梁桥、门式起重机；绝缘桥式起重机；防爆桥式起重机；钢丝绳电动葫芦等及配件（车轮组、卷筒组、吊钩组、滑轮组、联轴器）等五大类六百余种。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。