KR20130005064A

KR20130005064A - Vibration reduction device

Info

Publication number: KR20130005064A
Application number: KR1020110066418A
Authority: KR
Inventors: 서윤호; 김성훈
Original assignee: 현대중공업 주식회사
Priority date: 2011-07-05
Filing date: 2011-07-05
Publication date: 2013-01-15

Abstract

The present application relates to a vibration reduction device, wherein the vibration reduction device includes first and second bevel gears and first and second unbalanced mass portions disposed outside each of the first and second bevel gears, respectively. The first and second unbalanced mass parts may include first and second vibration reducing parts that rotate in opposite directions to reduce external vibration, and a third bevel gear coupled to the first and second bevel gears. And a power unit connected to the first vibration reduction unit, the second vibration reduction unit, or the connection unit.

Description

Vibration Reduction Device {VIBRATION REDUCTION DEVICE}

The present application relates to a vibration reduction device, and more particularly, to a vibration reduction device that can efficiently transmit an unbalanced mass.

Vibration reduction device refers to a device that is applied to a ship, etc. to cancel the vibration generated from the source of vibration, such as the engine or propeller. The vibration reducing device rotates an unbalanced mass of a constant weight so that a specific frequency is generated, thereby reducing the vibration generated from the vibration source and transmitted to the living quarters. Since the vibration frequency generated in the vibration reducing device must correspond to the vibration transmitted to the structure, first calculate the vibration phase transmitted to the vibration source or the installation place, and then operate the vibration reduction device in an appropriate operating phase.

The related art in this regard is disclosed in Korea Patent Registration 10-0182082.

The present application provides a vibration reduction device that can efficiently transfer an unbalanced mass.

Among the embodiments, the vibration reducing device includes first and second bevel gears and first and second unbalanced mass portions disposed outside of each of the first and second bevel gears, respectively. The second unbalanced mass parts may include first and second vibration reducing parts which rotate in opposite directions to reduce external vibration, a third bevel gear coupled to the first and second bevel gears, and the first portion. And a power unit connected to the vibration reduction unit, the second vibration reduction unit, or the connection unit.

In one embodiment, the first and second vibration reducing portions may be symmetrically located on the same line.

In one embodiment, each of the first and second bevel gears may be engaged in vertical engagement with the third bevel gear.

In an embodiment, the apparatus may further include an enclosure including the first and second vibration reducing units and the third bevel gear, and the power unit may be installed outside the enclosure.

The disclosed technique of the present application may implement symmetrical vibration reduction parts on the same line to efficiently transmit an unbalanced mass.

In addition, the disclosed technique of the present application can realize the optimization of the shape with the axis of rotation that the vibration reduction device is on the same line

1 is a cross-sectional view showing a vibration reduction device according to an embodiment of the disclosed technology.
2 is a cross-sectional view showing a vibration reduction device according to another embodiment of the disclosed technology.

The description of the disclosed technique is merely an example for structural or functional explanation and the scope of the disclosed technology should not be construed as being limited by the embodiments described in the text. That is, the embodiments may be variously modified and may have various forms, and thus the scope of the disclosed technology should be understood to include equivalents capable of realizing the technical idea. In addition, the objects or effects presented in the disclosed technology does not mean that a specific embodiment should include all or only such effects, and thus the scope of the disclosed technology should not be understood as being limited thereto.

Meanwhile, the meaning of the terms described in the present application should be understood as follows.

The terms "first "," second ", and the like are intended to distinguish one element from another, and the scope of the right should not be limited by these terms. For example, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component.

It is to be understood that when an element is referred to as being "connected" to another element, it may be directly connected to the other element, but there may be other elements in between. On the other hand, when an element is referred to as being "directly connected" to another element, it should be understood that there are no other elements in between. On the other hand, other expressions describing the relationship between the components, such as "between" and "immediately between" or "neighboring to" and "directly neighboring to", should be interpreted as well.

It should be understood that the singular " include "or" have "are to be construed as including a stated feature, number, step, operation, component, It is to be understood that the combination is intended to specify that it does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

All terms used herein have the same meaning as commonly understood by one of ordinary skill in the art unless otherwise defined. Commonly used predefined terms should be interpreted to be consistent with the meanings in the context of the related art and can not be interpreted as having ideal or overly formal meaning unless explicitly defined in the present application.

1 is a cross-sectional view showing a vibration reduction device according to an embodiment of the disclosed technology.

Referring to FIG. 1, the vibration reduction device 100 includes an enclosure 110, a first vibration reduction unit 120, a second vibration reduction unit 130, a connection unit 140, and a power unit 150.

The enclosure 110 provides an appearance of the vibration reduction device 100, and includes a first vibration reduction unit 120, a second vibration reduction unit 130, and a connection unit 140. The first and second vibration reducing parts 120 and 130 may be disposed on the upper and lower surfaces of the enclosure 110, and the connection part 140 may be disposed on the inner side of the enclosure 110. Here, the power unit 150 may be installed outside the enclosure 110. This is to prevent rotation disturbance of the first and second vibration reduction parts 120 and 130.

The first vibration reducing part 120 includes a first unbalanced mass part 122, a first bevel gear 124, and a first rotating shaft 126. In one embodiment, the first unbalanced mass portion 122 provides an unbalanced mass with respect to the first axis of rotation 126 to generate reverse vibration to reduce the vibration of the ship and through the first axis of rotation 126. It is coupled with the bevel gear 124.

The second vibration reduction part 130 includes a second unbalanced mass part 132, a second bevel gear 134, and a second rotation shaft 136. In one embodiment, the second unbalanced mass portion 132 provides an unbalanced mass with respect to the second axis of rotation 136 to generate reverse vibration to reduce the vibration of the ship and through the second axis of rotation 136. Bevel gear 134 is coupled.

In one embodiment, the first and second vibration reducing portions 120 and 130 may be symmetrically arranged on the same line.

The connection part 140 includes a third bevel gear 142 and a third rotation shaft 144. The third bevel gear 142 is vertically engaged with each of the first and second bevel gears 124 and 134 and coupled with the third rotation shaft 144.

The power unit 150 is installed outside the enclosure 110. The power unit 150 may be connected to the connection unit 140, and the power by the power unit 150 may rotate the connection unit 140 to rotate the first and second vibration reduction units 120 and 130 in opposite directions. Can be. In one embodiment, the power unit 150 may rotate the connection unit 140 using a timing belt.

2 is a cross-sectional view showing a vibration reduction device according to another embodiment of the disclosed technology.

2, the vibration reduction device 200 includes an enclosure 210, a first vibration reduction unit 220, a second vibration reduction unit 230, a connection unit 240, and a power unit 250. Since the vibration reduction device 200 of FIG. 2 is substantially the same as the vibration reduction device 100 of FIG. 1, the differences will be mainly described.

The power unit 250 is installed outside the enclosure 210. In one embodiment, the power unit 250 may be connected to the first vibration reduction unit 220, the power by the power unit 250 rotates the first vibration reduction unit 220 in one direction connecting portion 240 ), And as a result, the second vibration reduction unit 230 may be rotated in another direction. In one embodiment, the power unit 250 may rotate the first vibration reduction unit 230 using a timing belt.

Meanwhile, although FIG. 2 illustrates that the power unit 250 is connected to the first vibration reduction unit 220, those skilled in the art can easily connect the power unit 250 to the second vibration reduction unit 220. Description is omitted.

Vibration reduction device according to an embodiment and another embodiment can implement the symmetric vibration reduction portion in the same line can efficiently transfer the unbalanced mass. As a result, the vibration reduction device can realize the optimization of the shape with the rotation axis on the same line.

It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit and scope of the present invention as set forth in the following claims It can be understood that

100: vibration reduction device 110: enclosure
120: first vibration reduction portion 122: first unbalanced mass portion
124: first bevel gear 126: first rotating shaft
130: second vibration reduction portion 132: second unbalanced mass portion
134: second bevel gear 136: second axis of rotation
140: connecting portion 142: third bevel gear
144: third rotating shaft 150: power unit
200: vibration reduction device 210: enclosure
220: first vibration reduction portion 230: second vibration reduction portion
240: connection portion 250: power unit

Claims

First and second unbalanced masses, respectively, disposed on an outer side of each of the first and second bevel gears, the first and second unbalanced masses being opposite to each other. First and second vibration reduction parts which rotate to reduce external vibration;
A connection part including a third bevel gear coupled to the first and second bevel gears; And
Vibration reduction device comprising a power unit connected to the first vibration reduction portion, the second vibration reduction portion or the connecting portion.

The vibration reduction device according to claim 1, wherein the first and second vibration reduction parts are symmetrically located on the same line.

The vibration reducing device of claim 1, wherein each of the first and second bevel gears is vertically engaged with the third bevel gear.

The vibration reduction device according to claim 1, further comprising an enclosure including the first and second vibration reducing portions and the third bevel gear, wherein the power unit is installed outside the enclosure.