Adjustable pitch propeller oil distributor with linear feedbacks

Abstract

The invention discloses an adjustable pitch propeller oil distributor with linear feedbacks. The oil distributor comprises a gearbox outer oil pipe, a feedback rod, a rotor, a connecting plate, a shell, a stator, a high-pressure oil seal, hydraulic control one-way valves and a pitch feedback mechanism, wherein the rotor is rigidly connected with a gearbox output shaft; the connecting plate is rigidly connected with a front bearing cover of the gearbox output shaft; two hydraulic control one-way valves are arranged at the two ends of the rotor; an oil inlet A and an oil inlet B are formed and are respectively communicated with the middle hole of the feedback rod and the gearbox outer oil pipe through corresponding hydraulic control one-way valves; the feedback rod is connected with one end of an inner oil pipe of which one end is fixed on an oil cylinder piston, and is connected with a feedback frame in the pitch feedback mechanism; a pointer capable of displaying the current pitch angle is arranged on the feedback frame; and a linear pitch sensor is used for transmitting the pitch angle to a remote control system which is connected with the linear pitch sensor. In the invention, the oil distributor is integrated with the feedback mechanism, and a rotary sensor is changed into the linear pitch sensor, so that the weight of the feedback mechanism is lightened, and the safe reliability of the feedback mechanism is improved.

Description

technical field [0001] The invention relates to an oil distributor with linear feedback for an adjustable propeller hydraulic power system, in particular to a distributor with linear feedback for two-way oil circuit locking of an adjustable propeller and having a lubricating propeller hub system. oiler. Background technique [0002] The oil distributor is the core of the hydraulic power system and is applied to the adjustable propeller hydraulic power system. For existing distributors see figure 1 As shown, it includes rotor 1, connecting plate 2, stator 3, casing 4, oil pipe joint 5, transparent cover 6, seal 7, feedback rod 8, etc.; because there is a gap between the stator and the rotor, when the pitch adjustment is completed, The high-pressure oil in the oil cylinder will leak from the gap between the stator and the rotor, and will move in the direction of decreasing or increasing the pitch angle under the action of external torque. At this time, the electronic...

AI Technical Summary

Problems solved by technology

[0003] The existing oil distributor is equipped with an oil drain circuit, but not a lubricating oil circuit for the propeller hub. It is impossible to directly supply oil from the oil distributor to lubricate the propeller hub, but can only rely on other methods to solve the problem, which will inevitably increase the cost of equipment, and Operating costs

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