Horizontal axis ocean current energy electric generator variable-pitch device and horizontal axis ocean current energy electric generator

An ocean current energy and generator technology, applied in the directions of hydroelectric power generation, safety devices, engine components, etc., can solve the problems of high gear tooth pressure and contact stress, large axial force, and high manufacturing cost of bevel gears, and achieves a wide range of speeds, The effect of high transmission power and long service life

Active Publication Date: 2016-08-10
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

1. Crank linkage mechanism: This structure is often used in the hydraulic unified pitch control device of wind power generation equipment, but this structure can only realize the pitch change action of less than 90 degrees, and is not suitable for 180 degrees or even in ocean current power generation. Larger angle of pitch; 2. Worm gear mechanism: Due to the limitation of the mechanism, only independent pitch can be performed, and unified pitch cannot be performed; 3. Bevel gear mechani

Method used

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  • Horizontal axis ocean current energy electric generator variable-pitch device and horizontal axis ocean current energy electric generator
  • Horizontal axis ocean current energy electric generator variable-pitch device and horizontal axis ocean current energy electric generator
  • Horizontal axis ocean current energy electric generator variable-pitch device and horizontal axis ocean current energy electric generator

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Embodiment 1

[0048] refer to Figure 2-Figure 9 Disclosed is an electric pitch-variable device for a horizontal-axis ocean current energy generator, including a drive mechanism and an actuator. exist Figure 2 to Figure 5 as well as Figure 8 , Figure 9 In the first shown embodiment, the electric pitch control device of the ocean current energy generating device includes a set of driving mechanisms and three sets of actuators, each set of actuators corresponds to one blade 13, and there are three blades 13, three The four blades 13 are arranged at equal intervals of 120 degrees, and each blade 13 has a group of corresponding actuators to perform the pitch change action, and the three groups of actuators are all driven by the group of driving mechanisms.

[0049] The drive mechanism of the electric pitch control device of the horizontal axis ocean current energy generator in this embodiment includes a motor 2a, a shaft coupling 3, a screw 4 and a triangular push plate 14, and the electr...

Embodiment 2

[0071] refer to Figure 10-Figure 12 ,as well as Figure 4-Figure 8 Disclosed is a hydraulic pitch-variable device for a horizontal-axis ocean current energy generator, including a drive mechanism and an actuator. exist Figure 10 to Figure 12 as well as Figure 8 In the second shown embodiment, the hydraulic pitch device of the ocean current power generation device includes a set of driving mechanisms and three sets of actuators, each set of actuators corresponds to one blade 13, and there are three blades 13, three The four blades 13 are arranged at equal intervals of 120 degrees, and each blade 13 has a group of corresponding actuators to perform the pitch change action, and the three groups of actuators are all driven by the group of driving mechanisms.

[0072] The driving mechanism of the hydraulic pitch device of the horizontal axis ocean current energy generator in this embodiment includes a hydraulic motor 2b, a coupling 3, a screw 4 and a triangular push plate 14,...

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Abstract

The invention discloses a horizontal axis ocean current energy electric generator variable-pitch device and a horizontal axis ocean current energy electric generator. The variable-pitch device comprises a driving part which is a motor or a hydraulic motor, a screw rod which is fixedly connected with an output shaft of the driving part through a coupler and a push plate which is arranged on the screw rod in a sleeving mode and is in threaded connection with the screw rod. The left end of the screw rod is supported through a pair of centripetal thrust bearings. The right end of the screw rod extends into the left end of a central hole of a spindle flange and a spindle. A first sliding bearing is formed between the screw rod and the left end of the central hole of the spindle flange and the spindle. Electric slip rings or a hydraulic slip ring are/is mounted at the right end of the spindle. One gear rack is fixed to each side surface of the push plate, each gear rack is engaged with a gear wheel, all the gear wheels are fixedly connected with the roots of corresponding blades through variable-pitch flanges, and second sliding bearings are formed between the variable-pitch flanges and the wheel hub wall. An angle transducer is installed at the left end of the driving part. By means of the horizontal axis ocean current energy electric generator variable-pitch device and the horizontal axis ocean current energy electric generator, the variable-pitch angle larger than 180 degrees can be achieved, therefore, double-way electricity generation is achieved, unified pitch variation can be achieved, and operation is stable.

Description

technical field [0001] The invention belongs to the field of ocean current energy power generation, and specifically relates to a horizontal axis ocean current energy generator pitch changing device and a horizontal axis ocean current energy generator including the pitch changing device. The pitch changing device is suitable for high-power horizontal axis ocean current energy generators. dynamo. Background technique [0002] Energy shortage is a common problem faced by all countries in the world today, and the development of renewable energy is urgent. In the field of renewable energy, ocean current energy is a kind of clean and renewable energy. my country has abundant ocean current energy reserves, and its development and utilization potential is huge. Ocean current energy has the advantages of high energy density and strong predictability. The horizontal axis ocean current energy generator is a device that converts ocean current energy into electrical energy. Most of the...

Claims

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Application Information

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IPC IPC(8): F03B15/00F03B3/14F03B13/00
CPCF03B3/145F03B13/00F03B15/00F05B2220/706Y02E10/20
Inventor 顾海港李伟赵恒真林勇刚刘宏伟杨金鹏张经辉
Owner ZHEJIANG UNIV
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