Introduction to excavators
As a representative of modern construction machinery, excavators have brought great help to the construction of various fields, especially the construction and development of basic industries, due to their practical performance and working performance. Excavators are widely used, such as traffic roads, housing construction, energy development and construction, agricultural modernization, mineral excavation and picking, and modern national defense construction and maintenance. Statistics show that about 80% of the mining volume in ordinary engineering construction, and 70% of the excavation volume and collection volume in mines are completed with the help of hydraulic excavators.
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Due to the development requirements put forward by socialism and the acceleration of modernization, my country’s basic industries and energy industries have developed rapidly. This has promoted the development and innovation in the field of excavators, and laid a solid foundation for continuously meeting the modernization construction.
There are many types of excavators, which can be divided into different types according to the tonnage of the machine itself. For example, the tonnage of a small hydraulic excavator is below 13t. The characteristics of small excavators are: small size, fast operation, powerful functions, high work efficiency, etc., and are loved by major users.
It is mainly used for road maintenance, mining engineering, urban housing construction, garden construction, power facility construction, civil engineering, civil equipment construction, and other infrastructure construction projects. The medium-sized hydraulic excavator has many functions. Its advantages include: strong transportation capacity, flexible maneuverability, strong practicability, and low energy consumption.
It is very suitable for modern construction, especially the construction of urban infrastructure. In addition, It is light in weight, cheap, easy to maintain and maintain, so its application is more and more extensive, and it is welcomed by various regions. The market has great potential for development.
The walking system of hydraulic excavators has various structural forms. Now our common forms mainly include crawler type, tire type and walking device, and its main functions are supporting weight and normal walking. As the core of the chassis of the excavator, the walking system must meet many conditions to complete the specified operations smoothly and reliably. The requirements are as follows:
(1) Power: It must provide a large driving force, which can provide the power requirements of the excavator under various working conditions, and ensure smooth operation and driving.
(2) Off-road performance: ensure that there is a certain distance between the bottom of the walking system and the ground, and there must be certain requirements for off-road performance;
(3) Reliability: The grounding specific pressure of the excavator is smaller, and the damage to the ground is reduced;
(4) Safety: The excavator must run smoothly and safely in dangerous working conditions to prevent landslides and falls;
(5) Flexibility: The movement of the walking system of the excavator should be flexible and the structure should be compact.
Post time: Nov-21-2022
