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Single hydraulic props are generally divided into external injection single hydraulic props, internal injection single hydraulic props, suspended single hydraulic props and friction props. The internally injected single hydraulic prop has its own pump and is equipped with a pump. When setting up, the column can be raised quickly by shaking it with a hand crank. The working fluid is not discharged when the column is lowered. It can better protect the working environment, and is convenient to use and manage. Flexible and simple to equip. At present, the internally injected single hydraulic props with diameters and cylinder diameters ranging from... are mainly used.
The general model number is /, which indicates a single prop, which indicates an internal injection type, which indicates the maximum height of the prop, which indicates the working resistance of the prop, and which indicates the cylinder diameter of the prop.
A single hydraulic prop consists of an oil cylinder, a movable column, a three-purpose valve, a handle valve body, a return spring, a base, a top cover, a sealing cover assembly, a guide ring, an elastic cylindrical pin, a connecting wire, a seal, and other parts. Parts composition.
1. Top cover
The top cover of the pillar is a part that transmits the mine pressure to the pillar. And use the column claws to block the top beam to prevent the pillar from being pushed down when the top plate comes under pressure. It is connected to the live column through elastic cylindrical pins.
2. Sealing cover assembly
It is equipped with a shaped sealing ring (-) and a retaining ring to achieve sealing of the upper part of the pillar.
3. Live column
The live column is the load-bearing rod on the upper part of the pillar, which can transmit the top plate pressure to the oil cylinder and base in hydraulic form. It is equipped with a guide ring.
4. Handle valve body
The handle valve body is connected to the oil cylinder through a connecting wire. It is the grabber for carrying and moving the pillar. It is equipped with a dust ring to prevent coal dust from entering the pillar when the movable column moves. It is also equipped with a shaped sealing ring, a retaining ring and a shaped sealing ring.
5. Oil Cylinder
The oil cylinder is the load-bearing rod at the bottom of the pillar. It is connected to the base via connecting wires.
6. Return spring
The return spring is a tension spring that resets the movable column when it returns to the column. Its upper end is hung on the hanging ring below the sealing cover assembly.
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Contact person: Manager Ma
Zibo Taili Machinery Manufacturing Co., Ltd.
Single mining hydraulic prop accessories