阅读说明：本技术 一种变频隔振器 (Frequency conversion isolator ) 是由 程用超 彭旭 张苗 吴书有 于 2019-08-23 设计创作，主要内容包括：本发明提供一种变频隔振器,主要由上部安装面板结构、中部金属板、下部安装面板结构、内部橡胶圆柱体、上部橡胶环柱体及下部橡胶环柱体组成；上部橡胶环柱体套在内部橡胶圆柱体的上部,其内侧与内部橡胶圆柱体的外侧粘接联接；上部安装面板结构与内部橡胶圆柱体和上部橡胶环柱体的顶部硫化联接；下部橡胶环柱体和中部金属板套在内部橡胶圆柱体的下部,且均与内部橡胶圆柱体之间留有间隙；外部橡胶环柱体的顶部与中部金属板的下表面硫化联接；下部安装面板结构与内部橡胶圆柱体和下部橡胶环柱体的底部硫化联接。本发明提供的变频隔振器,配置刚度逐级递增高的内部橡胶圆柱体、中部橡胶环柱体、外部橡胶环柱体,实现了减振器变频的目的。(The invention provides a variable frequency vibration isolator which mainly comprises an upper mounting panel structure, a middle metal plate, a lower mounting panel structure, an inner rubber cylinder, an upper rubber ring cylinder and a lower rubber ring cylinder; the upper rubber ring cylinder is sleeved on the upper part of the inner rubber cylinder, and the inner side of the upper rubber ring cylinder is connected with the outer side of the inner rubber cylinder in an adhesion manner; the upper mounting panel structure is connected with the tops of the inner rubber cylinder and the upper rubber ring cylinder in a vulcanization way; the lower rubber ring cylinder and the middle metal plate are sleeved on the lower part of the inner rubber cylinder, and gaps are reserved between the lower rubber ring cylinder and the inner rubber cylinder; the top of the outer rubber ring cylinder is connected with the lower surface of the middle metal plate in a vulcanization way; the lower mounting panel structure is connected with the bottoms of the inner rubber cylinder and the lower rubber ring cylinder in a vulcanization mode. The variable-frequency vibration isolator provided by the invention is provided with the inner rubber cylinder, the middle rubber ring cylinder and the outer rubber ring cylinder, the rigidity of which is gradually increased, so that the purpose of frequency conversion of the vibration isolator is realized.)

1. A frequency conversion vibration isolator is characterized by mainly comprising an upper mounting panel structure (1), a middle metal plate (2), a lower mounting panel structure (3), an inner rubber cylinder (4), an upper rubber ring cylinder (5) and a lower rubber ring cylinder (6);

the upper rubber ring cylinder (5) is sleeved on the upper part of the inner rubber cylinder (4), and the inner side of the upper rubber ring cylinder is connected with the outer side of the inner rubber cylinder (5) in an adhesion manner; the upper mounting panel structure (1) is connected with the tops of the inner rubber cylinder (4) and the upper rubber ring cylinder (5) in a vulcanization mode; the lower rubber ring cylinder (6) and the middle metal plate (2) are sleeved on the lower part of the inner rubber cylinder (4), and gaps are reserved between the lower rubber ring cylinder and the inner rubber cylinder (4); the top of the outer rubber ring column body (6) is connected with the lower surface of the middle metal plate (2) in a vulcanization way; the lower mounting panel structure (3) is connected with the bottoms of the inner rubber cylinder (4) and the lower rubber ring cylinder (6) in a vulcanization mode.

2. The variable frequency vibration isolator according to claim 1, characterized in that the rigidity of the inner rubber cylinder (4), the middle rubber ring cylinder (5) and the outer rubber ring cylinder (6) is gradually increased.

Technical Field

The invention belongs to the technical field of vibration reduction, and particularly relates to a variable-frequency vibration isolator.

Background

For the design of vibration reduction and noise reduction of key equipment of a ship, vibration isolation devices are usually adopted to isolate vibration of the equipment from being transmitted to a base, energy caused by impact caused by an external environment is absorbed, the purpose of protecting the equipment is achieved, and meanwhile, the vibration reduction and noise reduction performance of the ship is improved. In order to improve the vibration and noise reduction performance of ships, the optimization of the vibration reduction element of the equipment is necessary.

Disclosure of Invention

In view of this, the invention provides a variable frequency vibration isolator, which provides various choices for the model selection of a vibration damping element of ship equipment and meets the requirements on safety, reliability and the like.

The technical scheme for realizing the invention is as follows:

a frequency conversion vibration isolator mainly comprises an upper mounting panel structure, a middle metal plate, a lower mounting panel structure, an inner rubber cylinder, an upper rubber ring cylinder and a lower rubber ring cylinder;

the upper rubber ring cylinder is sleeved on the upper part of the inner rubber cylinder, and the inner side of the upper rubber ring cylinder is connected with the outer side of the inner rubber cylinder in an adhering manner; the upper mounting panel structure is connected with the tops of the inner rubber cylinder and the upper rubber ring cylinder in a vulcanization way; the lower rubber ring cylinder and the middle metal plate are sleeved on the lower part of the inner rubber cylinder, and gaps are reserved between the lower rubber ring cylinder and the inner rubber cylinder; the top of the outer rubber ring cylinder is connected with the lower surface of the middle metal plate in a vulcanization way; the lower mounting panel structure is connected with the bottoms of the inner rubber cylinder and the lower rubber ring cylinder in a vulcanization mode.

Further, the rigidity of the inner rubber cylinder, the middle rubber ring cylinder and the outer rubber ring cylinder is gradually increased.

Advantageous effects

The variable-frequency vibration isolator provided by the invention is provided with the inner rubber cylinder, the middle rubber ring cylinder and the outer rubber ring cylinder, the rigidity of which is gradually increased, so that the purpose of frequency conversion of the vibration isolator is realized.

The invention has compact structure and convenient assembly and disassembly, and improves the convenience of construction and maintenance of workers.

Drawings

Fig. 1 is a front view of a variable frequency vibration isolator.

FIG. 2 is a cross-sectional view of a variable frequency vibration isolator.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.

As shown in fig. 1, the variable frequency vibration isolator according to the embodiment of the present invention is suitable for vibration and noise reduction engineering of ship equipment, and includes an upper mounting panel structure 1, a middle metal plate 2, a lower mounting panel structure 3, an inner rubber cylinder 4, an upper rubber ring cylinder 5, and a lower rubber ring cylinder 6. The upper rubber ring cylinder 5 is sleeved on the upper part of the inner rubber cylinder 4, and the inner side of the upper rubber ring cylinder is connected with the outer side of the inner rubber cylinder 5 in an adhesion manner; the upper mounting panel structure 1 is connected with the tops of the inner rubber cylinder 4 and the upper rubber ring cylinder 5 in a vulcanization mode; the lower rubber ring cylinder 6 and the middle metal plate 2 are sleeved on the lower part of the inner rubber cylinder 4, and gaps are reserved between the lower rubber ring cylinder 6 and the inner rubber cylinder 4; the top of the outer rubber ring cylinder 6 is connected with the lower surface of the middle metal plate 2 in a vulcanization way; the lower mounting panel structure 3 is connected with the bottoms of the inner rubber cylinder 4 and the lower rubber ring cylinder 6 in a vulcanization way; the rigidity of the inner rubber cylinder 4, the middle rubber ring cylinder 5 and the outer rubber ring cylinder 6 is gradually increased.

When the variable-frequency vibration isolator works, the upper mounting panel structure is connected with equipment, under the action of gravity, the inner rubber cylinder is compressed, and when the compression amount exceeds the distance between the lower part of the middle rubber ring cylinder and the upper part of the middle metal plate, the middle rubber ring cylinder and the outer rubber ring cylinder are compressed, so that the system rigidity is increased, the frequency is changed, the damping of the vibration isolator is increased, and the buffering capacity of the vibration isolator for the equipment is also increased.

It should be noted that the present embodiment is only an exemplary illustration of the present invention and does not limit the protection scope thereof, and those skilled in the art can make insubstantial changes to the present invention, and the present invention is not modified without inventive work, and all of the modifications are within the protection scope of the present invention.