Rotary vane type steering engine movable vane integrated sealing device

Abstract

The invention discloses a rotary vane type steering engine movable vane integrated sealing device which solves the technical problem mentioned in the background art that working cavities of a current rotary vane steering engine are not sealed fully. The rotary vane type steering engine movable vane integrated sealing device is characterized in that the rotary vane type steering engine movable vane integrated sealing device comprises an upper cylinder cover, a movable vane, a cylinder body, a rudder shaft, a stationary vane sealing strip, a stationary vane, a first sealing piece, a second sealing piece and movable vane sealing strips; the first sealing piece, the movable vane sealing strips and the second sealing piece form a sealing strip assembly of the rotary vane type steering engine movable vane integrated sealing device; the sealing strip assembly comprises an end face sealing strip for sealing the end faces of the two ends of the movable vane, and a side surface sealing strip for sealing the side surfaces of the movable vane; and the cross section of the end face sealing strip in the sealing strip assembly and the cross section of the side surface sealing strip in the sealing strip assembly are C-shaped. The rotary vane type steering engine movable vane integrated sealing device has the advantages that the sealing effect of a sealing device is improved, the probability of leakage is reduced, the reliability is improved, and the difficulty of assembling operation is reduced.

Description

technical field [0001] The invention relates to an integrated sealing device of a rotary vane rudder motor vane, which belongs to the sealing device of a hydraulic actuator and belongs to a mechanical seal. It is specifically applied to the sealing of the hydraulic working chamber of the rotary vane steering gear. Background technique [0002] The steering gear is the power device for the ship to steer and control the course. As a type of steering gear, the rotary vane steering gear can be directly installed with the rudder shaft to drive the rudder to reciprocate and swing without installing other auxiliary steering mechanisms such as the tiller handle. Therefore, if the working oil pressure remains unchanged , the output steering torque is a certain value, which has nothing to do with the steering angle. Its overall structure is as figure 1 and 2 , including, upper cylinder head 1, upper cylinder head sealing ring 2, rotor blade sealing strip 3, rotor blade 4, cylinder...

AI Technical Summary

Problems solved by technology

At present, the weak links of sealing are in the upper cylinder head and the sealing ring on the bottom surface of the cylinder block ( figure 1 2 and 5 shown in ) respectively with the moving blade sealing strip ( figure 1 3) shown in 3), the two-to-two combination of the transverse part, the upper cylinder head and the bottom surface of the cylinder body are slightly deformed when the pressure chamber is under pressure, and the sealing strip and the sealing ring forming the sealing chamber are respectively installed on the moving blade and the upper cylinder head, On the lower bottom of the cylinder body, the sealing strip and the sealing ring need to run in opposite directions during work, which is difficult to coordinate and can easily lead to leakage, resulting in failure or even failure of the rudder stabilization, affecting the normal use of the steering gear and even the safety of navigation

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