KBK, the abbreviation of German Kombiniert Kran, means modular crane. It is a patented product of DEMAG (the patent period has expired), which was later imitated or designed by various crane manufacturers. Mainly composed of track, suspension device, walking trolley and some functional components, all modules are standard components. The hoisting device mainly adopts electric chain hoist, and can also hang some manipulators or welding guns, which can be used as tool slides. The lifting weight is generally up to 2000kg.
KBK track-use Ω shape, 2 pieces welded together. Commonly used is the KBKII type track, and multiple tracks can be connected by high-strength bolts. The turning radius of the curved rail is 1.5m, and straight rails can be used for large bends. There is no smaller radius, which will affect the operation of the trolley. (The turning radius of the KBKI track is 1m, so I won’t introduce it here). It is also possible to install a built-in sliding contact wire on the inside of the KBKII track for power supply by the hoist, which is called the KBKII-R type.
The suspension device can generally be installed on the lower edge of the I-beam/H-beam, with a certain self-locking function, and the installation is simple and reliable.
Functional components include: switch, cross turntable, lifting section, etc.
Not certainly.
According to the provisions of Article 5 of the "Supplementary Provisions" in the "Special Equipment Safety Supervision Regulations": lifting machinery refers to electromechanical equipment used for vertical lifting or vertical lifting and horizontal movement of heavy objects, and its scope is specified as the rated lifting capacity is greater than or equal to 0.5t elevator; crane with rated lifting capacity greater than or equal to 1t and lifting height greater than or equal to 2m and electric hoist with fixed load-bearing form, etc.
As a special type of crane, KBK crane also needs to meet two elements to be defined as special equipment: (1) Lifting capacity is greater than or equal to 1t; (2) Lifting height is greater than or equal to 2m, both elements are indispensable .
Regarding the KBK rail crane transformation and installation operation plan, generally in the factory, cranes and cranes are common equipment, but they are often equipment with more safety accidents, so regular maintenance of the crane is a must and should also cause us Enough attention.
For cranes of different types, different performance parameters, different use environments, and different site conditions, the installation plan is different. Some need to use multiple lifting equipment to complete the installation task, and some only need one type of lifting equipment to complete the installation independently; others can use the lifting or luffing winch system of the crane to cooperate with the installation. Therefore, appropriate installation methods should be selected according to different types of cranes and their conditions to ensure the smooth completion of subsequent work.
The material of the crane hook is required to have high strength and toughness without the risk of sudden breakage. However, high-strength materials are usually sensitive to cracks and defects. The higher the strength, the greater the possibility of sudden breakage. Therefore, the hook body is widely made of low-carbon steel and low-carbon alloy steel.
Check the condition of the pulley frequently and maintain a proper gap between the pulley and the outer contour of other objects. If the gap is too small, the cover will be worn by the pulleys. If the gap is too large, the wire rope will loosen out of the groove or be clamped between the cover and the rim of the pulley. On the lifting balance beam and the wedge shell exit of the closing mechanism pulley block, it is easy to bite or cut the wire rope. The smoothness of the rounded corners at the wedge shell exit should be checked frequently. Refile the corners smoothly.
Before purchasing KBK rails, we must first consider which models and specifications to choose. Generally, it refers to the rated load, that is, the net weight of the large hoisting. For example, if the heavy goods in the production line are 400KG, the KBK track with the model specification of 500KB can be purchased. To buy KBK track, find a manufacturer with professional technology. Firstly, they have rich experience, and secondly, they have more quantity and better price.
At present, KBK rails on the market generally have several types of raw materials such as general steel, stainless steel, aluminum alloy and so on. Choose different materials according to its own regulations. If the temperature and humidity of the processing plant workshop is natural, stainless steel plates or aluminum alloy rails can be used. Aluminum alloy rails are more common in the market, and of course they have many advantages. They are light in material and attractive in appearance. If the lifting goods are not very heavy (under 500KG), it is recommended to choose aluminum alloy KBK rails. If the natural environment of the workshop is good, it is more cost-effective to be able to choose general steel rails.
KBK crane is actually a series, which belongs to a kind of suspended single beam, but does not use I-beam, but mostly uses C-shaped steel and hanging parts combination. The structure is relatively simple. However, the load-bearing capacity is limited, and chain hoists are generally used for lifting.
The KBK system crane includes various types of lifting equipment such as KBK-D single track, KBK-LD single beam, KBK-LS double beam, KBK-LSS telescopic beam, KBK-LM stacker, etc. The lifting capacity is 0.125t～2t. It has a very wide range, especially suitable for modern production conveyor lines. Its characteristics are summarized as follows:
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