Hydraulic support is a structure used to control the mine pressure on the coal mining face. The mining surface pressure acts on the hydraulic support in the form of external load. In the mechanical system where the hydraulic support interacts with the surrounding rock of the mining face, if the combined force of the supporting members of the hydraulic support and the external load combined force of the roof on the hydraulic support is exactly the same line, the hydraulic support is very suitable for the surrounding rock of the mining face .
Hydraulic support is an important part of comprehensive mining equipment. It can reliably and effectively support and control the roof of the working face, isolate the goaf, prevent vermiculite from entering the mining face and advancing the conveyor.
It is used in conjunction with a coal mining machine to realize comprehensive mechanization of coal mining, solve the contradiction of roof management lagging behind coal mining in mechanized coal mining, further improve and enhance the efficiency of coal mining and transportation equipment, reduce the labor intensity of coal mine workers, and effectively Guarantee the safety of the life of coal miners.
Classification of hydraulic supportDue to different production batches and specific models, the pictures are for reference only, details can be consulted online
There are many types of hydraulic supports.
3类 Supported, sheltered and supported cover 3 categories
2类 According to the moving frame method, it can be divided into two types: overall self-moving type and step forward type
2类 Divided into 2 types of working surface bracket and end bracket according to the use site
According to the thickness of the coal seam and the mining method, it is divided into paving network support and top coal hydraulic support
Performance characteristics of hydraulic supportDue to different production batches and specific models, the pictures are for reference only, details can be consulted online
In recent years, the research and development of hydraulic supports in China has developed rapidly.
Developed to self-designed and self-manufactured, with a wide variety, complete functions and reliable quality.
Good vertical and horizontal stability
Strong adaptability to roof