LH型电动葫芦桥式起重机

LH型电动葫芦桥式起重机依据JB/T3695-2008标准所设计、制造；本产品在国外欧式起重机上被普遍采用，适用于一般加工装配车间、仓库等工作场所，但不能用于易燃、易爆、有强腐蚀性介质环境中和吊运熔融金属。本产品与LDA型电动单粱起重机相比，具有运行平稳，更安全可靠的明显优点，本产品与QD型通用桥式起重机相比，具有自重轻、轮压、外形尺寸小，结构紧凑，各机构运行灵活、操作简便，更适用于地面操纵，造价低的突出明显优点。本系列产品起重量一般为3t、5t、10t、16/3t、20/5t、32/5t、40/10t，50/10t，跨度为7.5～31.5m，起重机的工作级别一般为A3～A5级，工作环境温度为一25°C～40°C。

主要特点：
1.本系列产品整机结构主要由桥架部分、大车运行机构、小车部分及电器部分所组成：
2.桥架部分为四粱结构，由两支端梁和两支主梁通过联接板采用高强度螺栓连接而成，在传动侧设有走台，桥架采用了偏轨箱型梁。
3.升降机构采用单速升降或双速升降钢丝绳电动葫芦，安装型式一般为A2型，如果选用工作级别M6的电动葫芦，其整机级别可选A6级；小车架、电动葫芦与小车运行机构共同组成小车总成。
4.大车运行机构采用“三合一"分别驱动，小车运行机构采用“三合一"集中驱动或分别驱动，减速器为硬齿面渐开线花键套装减速器，大、小车运行一般均采用变频调速。
5.操纵方式设有司机室联动台操纵或地面手把按钮操纵、地面遥控操纵三种方式可选用。

LH overhead crane with electric hoist based on the JB/T3695-2008 standard，is applicable to work in processing plants, assembly workshops and warehouses,etc. It is not allowed to be used in flammable or explosive or corrosive environments,for instance, foundries for lifting molten metal. Compared with LDA electric single-girder crane, it is reliable and safe for its smooth travelling. Compared with QD overhead crane for industrial applications, the product has obvious advantages such as light weight, small dimension, compact structure,fexible operation, low cost.

Performance data
Range of lifting load 3t、5t、10t、16/3、20/5t、32/5t、40/10t、50/10t
Range of span 7.5～31.5m
Allowed crane classification group A3～A5
Temperature of working environment -25℃～40℃

Main Features
1. The crane is mainly composed of bridge,travelling mechanism ,trolley and electrical system.
2. Its bridge ,called four-beam structure，mainly includes two main girde rs and two end carriages which are connected by means of high strength bolt. In addition，it has a platform along with driving side. The bridge adopts bias-rail box beam.
3.The hoisting mechanism adopts wire rope electric hoist with single-speed or two-speed. Installation grade is A2. If necessary, M6 electric hoist is mounted and the classfication group of this crane can be up to A6. The trolley mainly includes main frame, electric hoist and travelling mechanism.
4. Travelling mechanism adopts "three-in-one" respective drive, Traversing mechanism adopts "three in one" centralized or respective drive,The reducer is tooth-hardened and by means of involute spline it connects with wheel assembly. Both adopt variable frequency for speed adjustment.
5. This product has three types of manipulation：movable cab’s, ground wired button control or remote control.