CN115788756A

CN115788756A - Perpendicular contact disconnect-type wave energy collection structure of magnetic suspension

Info

Publication number: CN115788756A
Application number: CN202211471738.7A
Authority: CN
Inventors: 徐敬; 王仁明; 宋广斌
Original assignee: Zhejiang University ZJU
Current assignee: Zhejiang University ZJU
Priority date: 2022-11-23
Filing date: 2022-11-23
Publication date: 2023-03-14

Abstract

The invention relates to a magnetic suspension vertical contact separation type wave energy acquisition structure, which specifically comprises the following components: a top cover and a bottom cover are fixedly arranged at the upper end and the lower end of the cylinder, a rotating shaft is fixedly arranged at the centers of the top cover and the bottom cover, and a linear bearing I and a linear bearing II are arranged on the shaft; the first linear bearing is fixedly connected with the first magnet, the first magnet and the sealing cover form a sealing cavity, the third friction layer and the fourth friction layer are fixedly bonded at the bottom of the sealing cavity, the mass ring, the upper plate, the first friction layer and the second friction layer are fixedly bonded at the upper end of the spring, and the lower end of the spring is fixedly mounted at the bottom of the sealing cavity; the second linear bearing is fixedly connected with the buoyancy block, and the upper end of the buoyancy block is fixedly connected with the second magnet. The advantages are that: the integral structure can be fixedly arranged on an offshore target such as a buoy, the cylinder structure not only converts irregular motion of sea waves into single-degree-of-freedom motion along the axial direction, but also has good self-protection capability, and the service life of the structure is prolonged.

Description

Perpendicular contact separation formula wave energy collection structure of magnetic suspension

Technical Field

The invention relates to a magnetic suspension vertical contact separation type wave energy collecting structure according to the preamble of claim 1, and belongs to the technical field of wave energy collection.

Background

Energy is an important component of the rapid development of modern society. With the continuous development of human civilization, the limited fossil fuels on the earth become major problems to be solved urgently in the society due to the rapid exploitation of human beings, and the development and utilization of renewable energy and green energy become more and more important. Ocean is widely distributed in the world, and wave energy brought by the ocean is inexhaustible, so that the wave energy is a renewable energy source which is expected to be applied in large scale in the future. Through decades of development, the traditional ocean power generation equipment adopting an electromagnetic structure still has limitations in the field of wave energy collection, and the popularization of the power generation equipment is seriously influenced by the characteristics of irregular movement and low frequency of waves. In addition, the generally high equipment cost and installation and maintenance cost directly limit the application of the wave energy power generation equipment using electromagnetism as the power generation principle.

The nanometer friction generator is widely concerned by various industries due to numerous application advantages. The nanometer friction generator is a novel energy collection technology based on friction electrification and electrostatic induction, and is characterized in that low-frequency mechanical energy can be effectively utilized to generate electricity, a new idea is provided for ocean energy collection, and the nanometer friction generator is an indispensable important part in the field of future recyclable energy.

The nano friction generator has the characteristics of simple structure and low cost, so that the power generation device has good array property, low whole structure quality and simple installation and maintenance, has application in some self-energy supply fields, and provides more solutions in the fields of ocean engineering, machine manufacturing, rail transit, aerospace and the like in the future.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the vertical contact separation type wave energy collecting structure with magnetic suspension is low in price, simple in structure, stable, reliable, long in service life and capable of being installed simply.

In order to solve the technical problems, the invention adopts the technical scheme that:

the utility model provides a vertical contact disconnect-type wave energy collection structure of magnetic suspension specifically has: a top cover (1) and a bottom cover (8) are fixedly arranged at the upper end and the lower end of the cylinder (2), a rotating shaft (13) is fixedly arranged at the centers of the top cover (1) and the bottom cover (8), and a linear bearing I (12) and a linear bearing II (9) are arranged on the shaft (13); the linear bearing I (12) is fixedly connected with the magnet I (10), the magnet I (10) and the sealing cover (3) form a sealing cavity, the third friction layer (501) and the fourth friction layer (502) are fixedly bonded at the bottom of the sealing cavity, the mass ring (401), the upper plate (402), the first friction layer (403) and the second friction layer (404) are fixedly bonded at the upper end of the spring (11), and the lower end of the spring (11) is fixedly mounted at the bottom of the sealing cavity; the linear bearing II (9) is fixedly connected with the buoyancy block (7), and the upper end of the buoyancy block (7) is fixedly connected with the magnet II (6).

The invention has the advantages that: the integral structure can be fixedly arranged on an offshore target such as a buoy, the cylinder structure not only converts irregular motion of sea waves into single-degree-of-freedom motion along the axial direction, but also has good self-protection capability, and the service life of the structure is prolonged.

Drawings

FIG. 1 illustrates a cross section of a wave energy harvesting structure;

fig. 2 shows a front view of the top cover.

Reference numbers in the figures:

1 Top cover

2 Cylinder

3 sealing cover

401 mass ring

402 upper plate

403 first friction layer

404 second friction layer

501 third Friction layer

502 fourth friction layer

6 magnet 2

7 buoyancy block

8 bottom cover

9 linear bearing 2

10 magnet one

11 spring

12 linear bearing 1

13 axle

Detailed Description

Fig. 1 shows a cross section of a wave energy collecting structure, which is a magnetically levitated vertical contact separation type wave energy collecting structure according to the present embodiment, and specifically includes: a top cover 1 and a bottom cover 8 are fixedly arranged at the upper end and the lower end of the cylinder 2, a fixed rotating shaft 13 is fixedly arranged at the centers of the top cover 1 and the bottom cover 8, and a linear bearing I12 and a linear bearing II 9 are arranged on the shaft 13; the linear bearing I12 is fixedly connected with the magnet I10, the magnet I10 and the sealing cover 3 form a sealing cavity, the third friction layer 501 and the fourth friction layer 502 are fixedly bonded at the bottom of the sealing cavity, the mass ring 401, the upper plate 402, the first friction layer 403 and the second friction layer 404 are fixedly bonded at the upper end of the spring 11, and the lower end of the spring 11 is fixedly mounted at the bottom of the sealing cavity; the second linear bearing 9 is fixedly connected with the buoyancy block 7, and the upper end of the buoyancy block 7 is fixedly connected with the second magnet 6.

Fig. 2 shows a front view of the top cover 1, the top cover 1 is identical to the bottom cover 8, except for a circular hole with a mounting shaft 13 at the center, and circular holes are designed around the top cover 1 for the free entry and exit of seawater and air.

Wave energy collection structure will be fixed on floating platform or other surface of water platforms at the during operation, and partial structure immerses in the sea water, and buoyancy piece 7 can keep inside structure on the surface of water under the effect of sea water, and the fluctuation of sea wave can cause whole inner structure to fluctuate along the axle, and magnet one 10 and two 6 magnetism of magnet are repulsive and are installed, and this structure can be held in the palm the height with the electricity generation structure and keep away from the surface of water to can realize the function of buffering.

The structure fixedly bonded with the mass ring 401, the upper plate 402, the first friction layer 403 and the second friction layer 404 realizes periodic contact separation with the third friction layer 501 under the combined action of inertia and the spring 11, and electricity generation is realized by the coupling action of friction and electrostatic induction.

Claims

1. The utility model provides a vertical contact disconnect-type wave energy collection structure of magnetic suspension specifically has: a top cover (1) and a bottom cover (8) are fixedly arranged at the upper end and the lower end of the cylinder (2), a rotating shaft (13) is fixedly arranged at the centers of the top cover (1) and the bottom cover (8), and a linear bearing I (12) and a linear bearing II (9) are arranged on the shaft (13); the linear bearing I (12) is fixedly connected with the magnet I (10), the magnet I (10) and the sealing cover (3) form a sealing cavity, the third friction layer (501) and the fourth friction layer (502) are fixedly bonded at the bottom of the sealing cavity, the mass ring (401), the upper plate (402), the first friction layer (403) and the second friction layer (404) are fixedly bonded at the upper end of the spring (11), and the lower end of the spring (11) is fixedly mounted at the bottom of the sealing cavity; the linear bearing II (9) is fixedly connected with the buoyancy block (7), and the upper end of the buoyancy block (7) is fixedly connected with the magnet II (6), and is characterized in that the mass ring (401), the upper plate (402), the first friction layer (403) and the second friction layer (404) are fixedly bonded from top to bottom in sequence; a gap is formed between the structure formed by bonding the mass ring (401), the upper plate (402), the first friction layer (403), the second friction layer (404) and the spring (11) and the inner side of the sealing cover (3); the first magnet (10) and the second magnet (6) are installed in a magnetic repulsion mode; the first friction layer (403) and the fourth friction layer (502) are made of copper; the second friction layer (404) and the third friction layer (501) are two dielectrics with different electron gaining and losing capacities, the second friction layer (404) is made of polytetrafluoroethylene, and the third friction layer (501) is made of polyterephthalic acid plastic.