Fetching device for double girder bridge crane

It is great significance for safe production and improvement of production efficiency to select the appropriate fetching device. Due to the double girder bridge crane has a wide variety loading and unloading of objects, there are pieces, scattered and liquid, and so on, their physical properties and characteristics are so different. In order to adapt to load and unload all kinds of goods, commonly used extraction device as grab, electromagnetic sucker, rings, bar, clamp, vacuum suction, hopper, bucket and bearing beam, in addition to the special container spreader and other special tools.

Hook is the most widely used device for double girder bridge crane. Grab bucket is mainly used for loading and unloading a large number of bulk materials, but also used to grab the logs. Grab bucket is a kind of automatic fetching device, and its grasping and discharging action is controlled by the driver in the driver’s cab, without the assistance of the auxiliary personnel, which greatly improves the loading and unloading efficiency. The electromagnetic chuck is suitable for lifting the magnetic metal material, and is only used for absorbing black metal below 500 DEG C.

In the case that the material is often changed and the productivity is high, can select dual-purpose double girder bridge crane, which is a grab bucket and an electromagnetic chuck, or a grab and a hook, or an electromagnetic chuck and a hook. The lifting trolley is provided with two sets of lifting mechanisms which are respectively independent. But the two devices can not work at the same time.

In the special occasions that the lifting material change frequently, but productivity requirement is not very high, can choose three-purpose double girder bridge crane, according to the need, the hook can be hung with an electric grab or an electromagnetic chuck.

WOKAITE 3-50 ton Double Girder Overhead Crane

此博客中的热门博文

How to deal with 3 ton electric chain hoist motor overheating

Any machine has the cycle and time of operation, is not suitable for a long time continuous operation. Long time operation will cause mechanical damage and even accidents, but in general if the 3 ton electric chain hoist surface temperature is too high, we need to check what is the reason. Firstly to check whether it is because the electric hoist weight is too large, beyond the 3 ton electric chain hoist rated weight. Overweight operation will make the motor over heating, overload for a long time will cause irreparable damage to the electric chain hoists for sale. Electric hoist motor is not overloaded, but still heating, should check whether the motor bearing damaged; Should also check whether the motor Work according to regulations, which is one of the reasons causing the motor heating. When the electric hoist motor is running, brake clearance is too small, not completely disengaged, causing great friction, while the frictional heating is also equivalent to the additional load

阅读全文

The reason of electrical wire rope hoist does not work after starting

Mainly because of the hoist does not reach to the rated operating voltage, there are generally 3 kinds of situations: 1.Find out whether the power supply system supply power to wire rope electric hoist , generally used test pencil, such as no power supply; 2.The main control circuit of the wire rope electric hoist is damaged, the line is broken or the contact is bad, can also let the hoist motor not be electrified. This situation, need to overhaul the main control circuit. When maintenance, in order to prevent missing phase to burn the motor casused by the main control circuit supply power to three-phase motor, or hoist motor suddenly operate and cause danger, must disconnect electrical wire rope hoist motor from the power supply, only supply power to the main control circuit. Then start and stop switch, check and analyze the working condition of the electric appliance and the line, repair or replace the failed electric appliance or line. When the main control circuit is confirmed

阅读全文

Working level of overhead gantry crane

Overhead gantry crane installation site and the work conditions is vary greatly, the use of lifting capacity and working frequency are also different. In order to use the crane economically and reasonably, it is necessary to choose the appropriate working level according to the working condition of the crane. The working level of the bridge crane is divided into A1 ~ A8, according to the level of the crane and the load state, that is, according to the frequency and load degree of the crane through the calculation to determine. The crane has a certain number of working cycles during its useful life. A working cycle of a travelling gantry crane is to start the process of loading the goods from the beginning to the next. The total number of working cycles represent the utilization of cranes. In order to facilitate the calculation, the total number of working cycles can be divided into 10 categories. 200-400 ton heavy duty travelling overhead gantry crane for sale

阅读全文

WOKAITE

搜索此博客