Crane refers to a multi-action hoisting machine that vertically lifts and horizontally transports heavy objects within a certain range. Also known as overhead crane, aerial crane, crane.
The main features of the tire crane are: its driving cab and the lifting control room are combined into one, which is evolved from a crawler crane (crawler crane), and the crawler and walking bracket of the traveling mechanism are turned into a chassis with tires. It eliminates the disadvantage that the crawler crane (crawler crane) crawler shoes cause damage to the road surface, and belongs to material handling machinery.
Overhead cranes are hoisting equipment that is horizontally placed over workshops, warehouses and stockyards for material hoisting. Because its two ends sit on tall concrete columns or metal supports, it is shaped like a bridge. The bridge of the bridge crane runs longitudinally along the track laid on the elevated on both sides, which can make full use of the space under the bridge to lift materials without being hindered by ground equipment. It is the most widely used and the largest number of hoisting machinery.
Some of the working characteristics of lifting equipment are intermittent movement, that is, the corresponding mechanisms for taking materials, moving, and unloading in a working cycle work alternately. The development and use of cranes in the market are becoming more and more extensive.
Selecting a slewing bearing with an appropriate structure can effectively increase the bearing capacity, have a longer service life, and ensure the smooth and efficient operation of the equipment.
The motor or reducer drives the pinion to rotate, and the pinion drives the slewing bearing to rotate, so that the upper mechanism connected to it rotates accordingly.
Single row four point contact ball slewing bearing is widely used in truck crane. It can handle the loading and unloading of goods in a more comprehensive manner. Compared with other steering equipment, the advantage of slewing bearing is the key to solve inaccurately place and load and unload of goods.
A crane is a type of machine, generally equipped with a hoist rope, wire ropes or chains, and sheaves, that can be used both to lift and lower materials and to move them horizontally. It is mainly used for lifting heavy things and transporting them to other places. The part that plays an important role is the slewing bearing.
Single ball slewing bearing is widely used in truck crane. Slewing bearing is composed of upper and lower seat rings, which can handle the loading and unloading of goods more comprehensively. Compared with other steering equipment, the superiority of slewing bearing is the key to solve the problem of inaccurate goods placement and loading and unloading.
Truck crane is a kind of crane installed on the chassis of ordinary car or special car. Its driving cab and lifting cab are set separately. The advantages of this kind of crane are good mobility and rapid transfer. The main part of crane is slewing mechanism. The slewing mechanism is mainly composed of slewing bearing and power system.
How to maintain slewing bearing of truck crane?
- Visually inspect the bolts on slewing bearing before each crane operation or at least once a week;
- After the slewing bearing starts to work for 100 hours, check whether the bolts are loose, and check again after 300 hours; Then check every 500 working hours.
- The slewing bearing shall be filled with lithium grease before installation;
- When replacing the bolt, wipe the bolt clean, apply thread fastening glue and then tighten it.
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