Hydraulic support hose for coal mine is one of the most important equipment in coal mine comprehensive mining equipment. It is used to support the roof of coal mine underground working face to protect the safety of equipment and personnel. What is the structure of the hydraulic support? What is the function of each coal mine hydraulic support hose? The following editor will take you through.

Top beam

The top beam of the hydraulic support is directly in contact with the top beam, which is one of the main bearing parts of the support. Its main functions include:

1. Bear the load of the roof rock; 2. Bear the load of the roof rock; Hydraulic support hose for coal mines

2. Repeatedly support the ceiling, which can be broken on the hard ceiling; 2.

3. Provide enough safe space for the stope face.

The structure of the top beam is usually divided into integral and split type, that is, the top beam and the front beam. The top beam of the support is an integral structure, which is a box structure welded by steel plate. There is a side guard on both the left and right sides with a side guard on top and a side guard on top, and both the left and right are living side guards to close the space between the frames.

The top beam of the support consists of four main bars and top web, which becomes a cross-sectional box steel plate structure. The roof is relatively long, providing plenty of space for pedestrians. The side of the top beam is lower by one plate thickness for mounting the movable side guard plate. The jack and spring sleeve controlling the movable side guard plate of the top beam are located in the top beam, and sufficient installation space is left on the top beam. The main function of the top beam is to take the pressure of the top beam and pass it through the strut and base to the bottom of the plate. Hydraulic support hose for coal mines

Shield beam

The upper part of the shield beam is hinged with the top beam, the lower part is connected to the front and rear connecting rods, and the front and rear connecting rods are connected to the base. It is the main connection and cover part of the bracket. Its main functions include:

1. Bear the horizontal component and lateral force of the roof to ensure the torsional performance of the support;

2. Cover the beam, front and back connecting rod and base to form a four-connecting rod mechanism to realize the movement trend of the support;

3. The coal mine uses hydraulic support hose to stop the tribe's coal front string and maintain the working space.

In addition, the shield beam must have sufficient strength and stiffness due to its heavy bending and torque and harsh working conditions.

The shield beam of the support is an integral box section structure made of welded steel plates. In order to ensure adequate strength of the shield beam, it is welded with reinforcing plates in the parts connected with the top beam and the front and rear connecting rods, and in the corresponding dangerous sections and dangerous welds.

Functions include:

1. Bear the horizontal component and lateral force of the roof to enhance the torsional performance of the support;

2. Cover the beam with the front and rear connecting rod and base to form a four-connecting rod mechanism to ensure that the distance between the beam is not large; Hydraulic support hose for coal mines

3. Block the tribe's coal front string and keep the working space.

In addition, the shield beam must have sufficient strength and stiffness due to its heavy bending and torque and harsh working conditions.

Waste retaining board:

In large dip coal seam, the longwall mining method is used for mechanized mining. Due to the large Angle of cutting, the coal and stone falling from the working surface will fall due to the impact force and speed, posing a great threat to the personal safety of the next worker.

Therefore, a jack-controlled baffle plate was installed under the front beam of the hydraulic support to effectively separate the landing operation area from the mining area, thus better protecting the personal safety of personnel. Hydraulic support hose for coal mines