With the development of construction equipment engineering and national defense industry, elastic arm structure has been widely used in engineering practice. Its advantages are: it has a large bearing capacity in a small range, and has a long working interval and a high working height in the case of allowable load. At present, the elastic arm structure is mostly used in engineering vehicles or other transport vehicles. The following elastic arm excavator rental small edition to introduce to you, the characteristics of the elastic arm of excavator.
1. The effective operation interval is large and the operation height is high. Through the elastic arm structure, the distance of intention can be reached, and the amplitude of the arm can reach a higher operating height, which is incomparable with traditional excavators.
2. Can skip some obstacles to load and unload cargo directly. Elastic arm equipment can be used for loading and unloading across ditches, steps, doors and windows. Because of negative variable amplitude view, ditches on the stopping surface can also be cleared or repaired, leveled and other operations, so it is more suitable for use in field conditions.
3. It has good safety performance. Elastic arm excavator has the function of load elasticity. When stacking on uneven pavement, it can stop far away from the stacking point, open the stable leg, complete the loading and unloading of cargo by elastic and variable amplitude action. It is also convenient to arrange and disassemble the furnace in the steel-making workshop.
4. Easy to replace a variety of fittings and expand the scope of operation.
The external elastic arm is characterized by:
1. The outer elastic arm consists of an upper sliding arm and a lower fixing arm. The upper sliding arm is arranged above the lower fixing arm. The upper sliding arm is composed of an active body through two rollers and rails. The elastic cylinder is used to promote the free elasticity of the upper sliding body.
2. The upper sliding arm is equipped with an elastic cylinder. The cylinder block of the elastic cylinder is fixed on the lower fixing arm, and the piston rod of the elastic cylinder is fixed on the upper sliding arm. Its main components are: fixed body, moving body, slider, elastic cylinder, etc. External elastic arm has large force and simple structure. It can adjust working radius and excavation depth freely. It is easy to operate and adapt to specific environment. But its journey is small, usually within 4 meters.
The internal elastic arm is characterized by:
1. The internal elastic arm is inserted into the fixed body by the moving body, and then extends and retracts the moving body through the elasticity of the elastic cylinder, and then reaches the free elasticity intention.
2. Its structure only needs one fixed body and one or more mobile bodies. The first section is fixed body, the other is mobile body. The mobile body is inserted into the fixed body according to the order of its size. The principle is that two sections are inserted into one section and three sections into two sections. The inner elastic arm has complex structure and high production cost. It is generally designed to be more than two sections for grasping and lifting soil in deep pit operation. Its advantage is to increase the operating radius and excavation depth.