Tidal-current-energy power generation device based on hydraulic transmission

Abstract

The invention discloses a tidal-current-energy power generation device based on hydraulic transmission. The tidal-current-energy power generation device comprises a sealed in, a transmission shaft, a transmission device and a hydraulic loop, wherein the transmission device is arranged on one side of the sealed bin; the hydraulic loop is arranged on the other side of the sealed bin; a fixed chassis in the transmission device is fixed on the inner wall of the sealed bin; three hydraulic cylinders are uniformly arranged at intervals of 120 degrees by taking the transmission shaft as a circle center; one end of each hydraulic cylinder is fixed on the fixed chassis, and the other end of each piston rod is connected with a pulley; a sine-shaped rail is fixed on one end, close to the transmission shaft, of a sliding rail rotary disc and rotates freely along with the sliding rail rotary disc; the sliding rail rotary disc is connected with the transmission shaft and rotates along with the transmission shaft; the hydraulic loop is arranged in the sealed bin; and a complete hydraulic loop is formed through reciprocating motion of the hydraulic cylinders and the transmission shaft, and kinetic energy of tides is converted into power. The tidal-current-energy power generation device is safe and simple in structure; the sliding rail slides in a guide rail, so that efficiency is effectively improved, and the service life is prolonged; and the tidal-current-energy power generation device is free of a complex internal structure, and can be conveniently installed and recovered.

Description

technical field [0001] The invention belongs to the technical field of marine renewable energy utilization, and relates to a tidal current energy generating device based on hydraulic transmission. Background technique [0002] With the gradual depletion of traditional energy sources such as fossils, the global energy shortage and environmental pollution are becoming more and more serious. The development and utilization of clean and renewable energy will be our future research direction. Tidal current energy is a renewable energy with rich content. Energy has received great attention at home and abroad in recent years, and the significance and importance of developing and utilizing tidal current energy is self-evident. In recent years, the development and utilization of tidal current energy generation devices have made great progress worldwide. Tidal current turbines can generally be divided into vertical-axis tidal energy turbines and horizontal-axis tidal energy turbines....

AI Technical Summary

Problems solved by technology

[0003] Traditional hydraulic turbine transmission forms are divided into two types: speed-up type and direct-drive type. Among them, speed-up type transmission, that is, gearbox transmission, is the most widely used method. Large, high noise, and because the gear transmission is prone to wear and other failures, the service life is relatively short, so the operation and maintenance costs of the unit are greatly increased. In addition, the water turbine is placed underwater, and maintenance will cost a lot of manpower and material resources. For the direct drive / semi-direct drive transmission, the impeller and the motor are directly coupled (without a gearbox), the low speed of the impeller leads to too many pole pairs of the direct drive motor, and the motor is bulky and heavy, which is not only expensive, but also relatively heavy heavy, difficult to hoist

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