Rotating joint and oil cylinder hinge base integrated oil cylinder

Abstract

The invention discloses a rotating joint and oil cylinder hinge base integrated oil cylinder, and mainly solves such technical problems as easy aging and damage of a high-pressure hose used for a hydraulic oil cylinder in a traditional barrage, low reliability and durability and inconvenient maintaining. The rotating joint and oil cylinder hinge base integrated oil cylinder is characterized by comprising an oil cylinder hinge base integrated rotating joint (1), a cylinder block (2), a piston rod (3), a rodless cavity pipeline (4) and a rod cavity pipeline (5); the piston rod (3) is sleeved with the cylinder block (2) to form a rod cavity and a rodless cavity in the cylinder block; and the rodless cavity pipeline (4) and the rod cavity pipeline (5) are mounted at the two ends of the oil cylinder hinge base integrated rotating joint (1) through rotating joint sleeves (11), and respectively communicate with the rodless cavity and the rod cavity through oil way channels. The rotating jointand oil cylinder hinge base integrated oil cylinder is mainly applied to the barrage.

Description

technical field [0001] The invention relates to an oil cylinder integrated with a rotary joint and an oil cylinder hinge seat. Background technique [0002] The hydraulic cylinder is used for lifting the dam door. Because the hydraulic cylinder moves with the door body, the A and B ports of the hydraulic cylinder can only be connected with high-pressure hoses. The high-pressure hoses are located at the bottom of the river bed, which has not been used for a long time. It is underwater and has silt, which is easy to age and damage. Once the high-pressure hose bursts, the door body supported by the oil cylinder will collapse in the form of gravity acceleration, causing a major safety hazard. Because the hydraulic lifting dam is located in the special operating environment inside the river bed, when the high-pressure hose needs to be replaced, it is necessary to retain a section of dry area, which makes the maintenance work extremely inconvenient. [0003] When the hydraulic li...

AI Technical Summary

Problems solved by technology

Therefore, the prerequisite for flood discharge of the dam is to carry out when the hydraulic system is energized. In case of severe natural weather conditions such as heavy rain and lightning strikes, the hydraulic system is powered off or the hydraulic system fails, and the flood discharge of the dam will not be realized.

As a result, hydraulic lifting dams without support rods have appeared. However, in some rivers with normal water on both sides, when the dam gate is lowered, in order to overcome the buoyancy of the water on the back of the dam gate, the dam gate is lifted and lowered. When the hydraulic cylinder is used as a long-term support, although the hydraulic piping system does not leak oil outward, if an internal leak is formed between the piston of the double-acting hydraulic cylinder and the cylinder barrel, the rodless chamber passes through the hydraulic cylinder piston to the rod chamber. Oil flow, this kind of internal leakage is extremely unfavorable for long-term dam surface support, and the overall dam surface will slowly decline, resulting in the inability to maintain the horizontal level of the multi-fan dam surface, and it will become very difficult to adjust the uniform height of the multi-fan dam surface

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