Good morning, young friends! Next, the small editor is ready to explain the relevant contents of the single hydraulic prop for the small friends. The small friends are also deeply impressed with the single hydraulic prop. I still hope that this explanation will bring some gains to my friends.
Maintenance Method Of Single Hydraulic Prop!
1. For new or repaired poles that have been stored on the ground for more than 3 months, spot check shall be carried out according to the regulations before lowering; The poles stored for more than 1 year shall be tested one by one to check whether there is any change in the performance of the poles.
2. The single hydraulic prop whose performance cannot be guaranteed or damaged during storage and transportation is not allowed to be used in the well. The single column shall not be overhauled and stored in the open air.
3. The maintenance site shall be clean and sanitary, and all kinds of pillars to be repaired and qualified pillars shall be classified and stacked neatly.
4. Maintenance personnel shall be able to correctly use special maintenance equipment such as column dismantling machine and test bench. Various instruments of test and maintenance equipment shall be regularly checked.
5. The single hydraulic prop to be used that has passed the test after maintenance shall be stored vertically or obliquely.
6. The single hydraulic prop is injected with liquid on the outer guide sleeve of the first stage working cylinder, and there is no circumferential weld on the movable cylinder which is difficult to ensure by the process, thus avoiding the accident potential of effective sealing performance of the prop due to liquid leakage or fracture damage of the weld.
7. At present, the single hydraulic prop at home and abroad is welded on the movable column with the column head of the three-way valve. When the movable column rises, the operator needs to rise with it. For the high working face, the operator is inconvenient and unsafe; Working characteristics of single hydraulic prop
1. The working stroke is large, and it is especially suitable for the working face with large variation of underground roof height.
2. The pillar adopts inner hole seal, which is anti-collision in the underground and has a wide range of uses.
3. No fracture. Friction welding is adopted and the weld is not broken.
4. The pillar adopts a new sealing device, which eliminates the leakage point between the DZ pillar piston and the movable column, and is reliable in use.
5. It can be supported horizontally.
6. High strength, no bending.
