2015年8月14日星期五

Improve portal crane


Therefore, only to completely change the way the former governor to solve the problem of high failure rate overhead crane fundamentally. With the fast development of electronic technology, inverter performance and reliability have been greatly improved, for applications in bridge portal crane suppliers crane drive system provides favorable conditions. We first take on the important work of assembling diesel locomotive repair library shelf 32 t overhead crane hook size vehicle drive system and improve the system frequency transformation, to improve its operating performance and reduce the failure rate.

2015年8月12日星期三

Jib crane presentation

column jib crane, a crane, widely used in factories, workshop production lines, assembly lines and machine tools, and the upper and lower parts warehouses, docks and other occasions of heavy lifting. column mounted jib crane: extract means rotating arm hanging at the end or spin-hanging along the lifting arm runs a small car, the arm can swing, but can not pitch jib crane jib crane called. For machinery manufacturing, railway, chemical industry, light industry production lines or repair situation, especially in dense device, a short distance lifting, for frequent application of the product line will enhance production efficiency.

2015年8月7日星期五

Single girder crane rules

a. single girder crane cab, the driver succession before driving, coping hooks, ropes and safety devices and other components according to the requirements of check card check, unusual circumstances, should be excluded.
b. Ground control of bridge gantry crane, the class should be someone responsible for inspection according to the requirements of the card check, unusual circumstances, should be excluded.
c. The operator must confirm to go on unmanned rail station or when we can close the main power supply. When locking or sign the power circuit breaker is closed by the original person only after the main power is removed.

2015年8月4日星期二

Main beam form can be divided into single master volume and double main beam cranes

1. The single girder
single girder overhead crane structure is simple, easy manufacture and installation, small quality of their main beam much for the partial rail box-shaped frame structure. Compared with double girder gantry crane, the overall stiffness weaker. Therefore, when the starting weight Q≤50t, when the span S≤35m, can this form. Single girder gantry crane doors leg has L and C forms. L type of manufacture and installation convenience, the force was better, the smaller their own quality, but, lifting goods through space at the relatively small number of legs. C-type legs made of sloped or curved shape, aimed at a greater horizontal space, so that goods pass foot.
2. The double main beam
double girder gantry crane carrying capacity, span, the overall stability, variety, but the quality of their starting weight compared with the same single-girder gantry crane to be bigger, the cost is higher. Depending on the main beam structure, it can be divided into box beams and trusses in two forms. More commonly used box structure.


2015年7月31日星期五

Gantry crane classification

Gantry crane frame may form structure, according to the main form of beams, according to the main beam structure, according to use in the form of classification frame structure
Divided gantry crane and cantilever gantry crane
Gantry crane
1. Full gantry cranes: main beam no overhang, the car in the main spans;
2. semi gantry cranes: leg height difference, according to the civil use of space requirements.
Cantilever gantry crane
1. double girder gantry crane: The most common type of structure, the effective use of force and the site area of the structure is reasonable.
2. Single Cantilever Crane: This form of structure is often due to space constraints and is selected.

2015年7月27日星期一

Gantry crane


ship gantry crane is a variant of the bridge gantry crane, gantry crane known. Mainly used for outdoor yard, yard goods, bulk cargo loading and unloading operations. Its metal structure shaped like a door frame, carrying the main beam install two feet down, you can walk directly to the track on the ground, both ends of the main beam may have overhanging cantilever. Gantry crane with a high utilization of space, large operating range, wide adaptation, versatility, etc., are widely used in the port yard. It may be in the form of a door frame structure, according to the main form of beams, according to the main beam structure, according to use in the form of classification.

2015年7月23日星期四

You know how much knowledge gantry cranes?

electric gantry crane lifting equipment belonging to one, commonly known as gantry cranes. Such cranes are mainly extract article by means lifted after then move horizontally to the destination lowered. Gantry crane is a do loop, intermittent movement of equipment, mainly by the main circuit, control circuit, lighting signal circuit and the like. Purchase of gantry cranes at the construction unit should be combined with the construction situation of enterprises: the frequency of a combination of factors, utilization, from the weight, etc. into account. In addition to considering the technical parameters, but also need to conduct market research to understand the manufacturer's reputation, technical level. Typically buy when the span gantry crane technical requirements, often starting weight of less than 50 tons, the span needs no special equipment to within 35 meters. If you need a large weight lifting, the need to use large span and double bridge gantry crane
. When the purchase of gantry cranes delivered to your door, it should be out of the box inspection, to check whether the information is complete, matching the parts for damage, whether complete and so on.