JPH07229536A - Vibration limiting device - Google Patents

Vibration limiting device

Info

Publication number
JPH07229536A
JPH07229536A JP4513994A JP4513994A JPH07229536A JP H07229536 A JPH07229536 A JP H07229536A JP 4513994 A JP4513994 A JP 4513994A JP 4513994 A JP4513994 A JP 4513994A JP H07229536 A JPH07229536 A JP H07229536A
Authority
JP
Japan
Prior art keywords
screw rod
cylinder
fixed
lids
nut
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP4513994A
Other languages
Japanese (ja)
Inventor
Fumiya Iiyama
山 文 也 飯
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sanwa Tekki Corp
Original Assignee
Sanwa Tekki Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sanwa Tekki Corp filed Critical Sanwa Tekki Corp
Priority to JP4513994A priority Critical patent/JPH07229536A/en
Publication of JPH07229536A publication Critical patent/JPH07229536A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To provide such a vibration limiting device that is fixedly secured on a material so as to control vibration generated on the material which is fixed on a ground or a floor surface. CONSTITUTION:A cylinder 1 is fixed on an object and a screw rod 2 is rotatably journalled to its both lids la. A nut 4 is threaded around the screw rod 2 by a ball screw. A spring bearing 5 fixed to the nut 4 is engaged with key grooves 1b formed by boring the inside face of the cylinder and the nut is only allowed axial movement. Springs 6 are inserted between the spring bearing 5 and both lids 1a respectively. Projection parts are provided on both ends of the screw rod and weight bodies 7 are fixed thereto. A pair of magnets 8 which are mounted on the inside face of the extension part of the cylinder are made to face to the outer circumference of the weight bodies.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】この発明は地表或いは床面上に固
定された物に発生する振動を緩衝するため、その物に固
定して用いる制振装置に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vibration damping device fixed to an object fixed on the ground or floor so as to absorb the vibration generated in the object.

【0002】[0002]

【従来の技術】構造物の上面に水を貯蔵して、地震等に
よる振動を水の慣性によって制振する方法が知られてい
るが、原理は別として一般の用途に用いられる性質のも
のではない。
2. Description of the Related Art A method is known in which water is stored on the upper surface of a structure and vibration due to an earthquake or the like is damped by the inertia of water. Absent.

【0003】機械的手段で制振を意図したものとして特
開昭60−57029が公知である。物体の直線方向振
動を回転運動に変換し、この回転運動で起電力を発生さ
せそれに負荷抵抗を与えて制振するとしている。この回
転運動は一方向ではなく、正逆両方向を反復するもので
あるがこれによって起電する構成の記載に欠け、作用も
明かでない。未完成発明と思われる。
Japanese Patent Application Laid-Open No. 57029/1985 is known as one intended to suppress vibration by mechanical means. It is said that the linear vibration of an object is converted into a rotational motion, and this rotational motion generates an electromotive force, which gives load resistance to the vibration to suppress the vibration. This rotational movement repeats both forward and reverse directions, not in one direction, but the description of the structure in which electromotive force is generated by this is lacking and the action is not clear. It seems to be an incomplete invention.

【0004】[0004]

【課題解決の手段】対象とする物へ振動方向に円筒を固
定し、その両ふたを貫通してねじ棒を回転自在に支持す
る。ねじ棒中央部へナットをボールねじで螺合する。ナ
ットは回り止めされ軸線方向移動だけが許される。ばね
受板をナットへ一体に設け、それと円筒ふたの間にばね
を挿入する。ねじ棒延長部にウエイト体を固着する。こ
の構成によって対象物の振動はウエイト体の往復回転に
変換され、大きな制振力を受ける。
A cylinder is fixed to a target object in a vibration direction, and a screw rod is rotatably supported by penetrating both lids thereof. Screw the nut to the center of the screw rod with a ball screw. The nut is stopped and only axial movement is allowed. The spring bearing plate is provided integrally with the nut, and the spring is inserted between it and the cylindrical lid. Secure the weight body to the threaded rod extension. With this configuration, the vibration of the object is converted into reciprocating rotation of the weight body, and a large damping force is received.

【0005】物を制振するためその物へ一定質量のウエ
イト質量を附加することを考えよう。その場合このウエ
イト体を物と一緒に直線振動させるのと、その物の振動
に応動して正逆回転させるのとでは、後者が前者に対し
飛躍的に制振力を増大する。この原理を用いたものであ
る。
Consider adding a constant weight mass to an object in order to damp it. In that case, if the weight body is linearly vibrated together with the object, and if the weight body is rotated in the forward or reverse direction in response to the vibration of the object, the latter dramatically increases the damping force with respect to the former. This principle is used.

【0006】ウエイト体の外周に対向して磁石を臨ま
せ、その中でウエイト体が回るようにし、ウエイト体に
渦電流が発生するようにしておくと、ウエイト体による
慣性制動に加えて、渦電流による制振力が附加される。
If a magnet is made to face the outer periphery of the weight body so that the weight body can rotate in such a manner that an eddy current is generated in the weight body, in addition to inertial braking by the weight body, vortex Damping force by electric current is added.

【0007】[0007]

【実施例】図面について述べる。円筒1は対象物へ水平
に固定され、両端にふた1aを備える。ねじ棒2は両ふ
たの軸受3へ回転自在に支持され、両ふた間部分にはね
じが刻まれ、両ふた外へ突出部2aを突出させている。
ナット4はねじ棒2とボールねじで螺合し、外周にリン
グ状ばね受板5が固着されている。ばね受板5はキー5
aを備え、これが円筒内面のキー溝1bと係合して回り
止めされ、ナット4に軸線方向移動のみを許容する。ば
ね6はばね受板5と両ふた1aの間へ挿入され、常時は
ナット4を円筒の中心に維持する。ねじ棒の突出部2a
にはウエイト体7が固着されている。
DESCRIPTION OF THE PREFERRED EMBODIMENTS The drawings will be described. The cylinder 1 is horizontally fixed to an object and has lids 1a at both ends. The screw rod 2 is rotatably supported by bearings 3 of both lids, and a screw is carved in a portion between both lids to project a protruding portion 2a to the outside of both lids.
The nut 4 is screwed with the screw rod 2 by a ball screw, and a ring-shaped spring receiving plate 5 is fixed to the outer circumference. The spring bearing plate 5 is the key 5
a, which engages with the keyway 1b on the inner surface of the cylinder to prevent rotation, and allows the nut 4 to move only in the axial direction. The spring 6 is inserted between the spring receiving plate 5 and both lids 1a, and always keeps the nut 4 in the center of the cylinder. Screw rod protrusion 2a
A weight body 7 is fixed to the.

【0008】なお必要あらば1対の磁石8を円筒1の延
長部内面に体向して装着し、これをウエイト体外周に臨
ませておく。磁石による渦電流をウエイト体に作用可能
にしたものである。ウエイト体を非磁性体(銅、アルミ
ニウム製)にすれば速度に比例した制振力が得られ、強
磁性体(鉄製)にすれば速度に依存しない一定のヒステ
リシス力が得られる。
If necessary, a pair of magnets 8 are mounted on the inner surface of the extension portion of the cylinder 1 so as to face the outer circumference of the weight body. The eddy current generated by the magnet can act on the weight body. If the weight body is made of a non-magnetic material (made of copper or aluminum), a damping force proportional to the speed can be obtained, and if made of a ferromagnetic material (made of iron), a constant hysteresis force independent of the speed can be obtained.

【0009】[0009]

【作用】いま地震によって円筒1がそれを支持する物と
一緒に、図1に於いて左右に振動したとする。ナット4
は静止慣性によって原位置を保とうとするので、交互に
左右ばねを圧し、相対的に円筒内を左右に反復移動しよ
うとする。しかしナットが回り止めされているので、ね
じ棒に往復回転運動を引きおこす。ねじ棒の回転は両側
のウエイト体の慣性によって大きく制動される。
Operation Now, assume that the cylinder 1 vibrates left and right in FIG. 1 together with the object that supports it due to the earthquake. Nut 4
Tries to maintain its original position due to the static inertia, it alternately presses the left and right springs and tries to relatively repeatedly move left and right in the cylinder. However, since the nut is stopped, it causes a reciprocal rotary motion of the threaded rod. The rotation of the screw rod is largely damped by the inertia of the weight bodies on both sides.

【0010】なおウエイト体の回転は磁石8によりウエ
イト体に渦電流を発生することになるので、このことか
ら電磁制動作用が附加される。制振力は、ウエイト体が
銅、アルミニウム等の非磁性体であれば速度に比例し、
鉄等の強磁性体であれば速度に依存しない一定のヒステ
リシス力になる。
Since the rotation of the weight body causes an eddy current in the weight body by the magnet 8, an electromagnetic braking action is added from this. The damping force is proportional to the speed if the weight body is a non-magnetic material such as copper or aluminum.
A ferromagnetic material such as iron has a constant hysteresis force that does not depend on the velocity.

【0011】[0011]

【効果】装置が小型化され、しかも大きな制振力を発揮
する。小数部材で構成されるので故障の起こる余地が少
ない。この装置の1対を互いに軸線を直交させて対象物
に固定しておけば、どの方向の振動にも、その分力に対
応することによって、制振を可能とする。
[Effect] The device is downsized, and a large damping force is exerted. Since it is composed of a small number of members, there is little room for failure. If a pair of these devices are fixed to the object with their axes orthogonal to each other, vibrations in any direction can be suppressed by responding to the component force.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の正面図である。FIG. 1 is a front view of the present invention.

【図2】同側面図である。FIG. 2 is a side view of the same.

【符号の説明】[Explanation of symbols]

1 円筒 1b キー溝 2 ねじ棒 3 軸受 4 ナット 5 ばね受板 6 ばね 7 ウエイト体 8 磁石 1 cylinder 1b key groove 2 screw rod 3 bearing 4 nut 5 spring receiving plate 6 spring 7 weight body 8 magnet

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 対象物へ水平に固定され両端にふたを有
する円筒と、両ふたへ回転自在に支持され両端に突出部
を備えたねじ棒と、ねじ棒とボールねじで螺合しばね受
板が一体に設けらればね受板は軸線方向移動可能に円筒
内径とキー係合させて成るナットと、上記ばね受板と両
端ふたの間へ挿入された1対のばねと、ねじ棒突出部に
固定されたウエイト体とから構成された制振装置。
1. A cylinder horizontally fixed to an object and having lids at both ends, a screw rod rotatably supported by both lids and provided with protrusions at both ends, and a spring bearing screwed with the screw rod and a ball screw. A plate is integrally provided, and the spring receiving plate is keyed with the cylindrical inner diameter so as to be movable in the axial direction, a pair of springs inserted between the spring receiving plate and both end lids, and a screw rod projecting portion. A vibration damping device composed of a weight body fixed to the.
【請求項2】 円筒をねじ棒突出部まで延長しその内面
へ1対の磁石を設けてウエイト体に臨ませた第1項記載
の制振装置。
2. The vibration damping device according to claim 1, wherein the cylinder is extended to the protruding portion of the screw rod, and a pair of magnets is provided on the inner surface of the cylindrical rod so as to face the weight body.
JP4513994A 1994-02-18 1994-02-18 Vibration limiting device Pending JPH07229536A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4513994A JPH07229536A (en) 1994-02-18 1994-02-18 Vibration limiting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4513994A JPH07229536A (en) 1994-02-18 1994-02-18 Vibration limiting device

Publications (1)

Publication Number Publication Date
JPH07229536A true JPH07229536A (en) 1995-08-29

Family

ID=12710955

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4513994A Pending JPH07229536A (en) 1994-02-18 1994-02-18 Vibration limiting device

Country Status (1)

Country Link
JP (1) JPH07229536A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107314220A (en) * 2017-05-25 2017-11-03 镇江市得亨建设工程有限公司 A kind of oblique pull connector of Antiseismic building support
CN109217222A (en) * 2016-12-30 2019-01-15 北京金风科创风电设备有限公司 Inhibit building enclosure oscillation crosswise and protects the device and spin thread mechanism of tilting member
JP2019157947A (en) * 2018-03-09 2019-09-19 株式会社免制震ディバイス Mass damper
CN112682460A (en) * 2020-12-22 2021-04-20 杭州陆凌结算信息技术有限公司 Automatic adjustment vehicle shock absorber based on multi-force combination vibration reduction

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109217222A (en) * 2016-12-30 2019-01-15 北京金风科创风电设备有限公司 Inhibit building enclosure oscillation crosswise and protects the device and spin thread mechanism of tilting member
CN109217222B (en) * 2016-12-30 2019-11-19 北京金风科创风电设备有限公司 Inhibit building enclosure oscillation crosswise and protects the device and thread mechanism of tilting member
CN107314220A (en) * 2017-05-25 2017-11-03 镇江市得亨建设工程有限公司 A kind of oblique pull connector of Antiseismic building support
CN107314220B (en) * 2017-05-25 2019-11-22 镇江市得亨建设工程有限公司 A kind of oblique pull connector of Antiseismic building bracket
JP2019157947A (en) * 2018-03-09 2019-09-19 株式会社免制震ディバイス Mass damper
CN112682460A (en) * 2020-12-22 2021-04-20 杭州陆凌结算信息技术有限公司 Automatic adjustment vehicle shock absorber based on multi-force combination vibration reduction

Similar Documents

Publication Publication Date Title
US7449803B2 (en) Electromagnetic motor to create a desired low frequency vibration or to cancel an undesired low frequency vibration
JP6104678B2 (en) Attenuator
US5248133A (en) Multidimensional damping apparatus
JPS5938457B2 (en) Rotor magnetic bearing mechanism
JP2003125572A (en) Controllable electromechanical transducer
KR20170102926A (en) Further improvements in electromechanical actuators
JPS624937A (en) Buffering method employing hysteresis and damper
JPH07229536A (en) Vibration limiting device
JP2575778B2 (en) Magnetic adjustment damping device
JP2019173933A (en) Mass damper
JP2017110758A (en) Variable inertia mass type vibration control device
KR20010093004A (en) Shock absorber using magnetorheological fluid
JP7040357B2 (en) Eddy current damper
CN112228487A (en) Variable-air-gap high-linearity electromagnetic type active vibration absorber
WO2020116344A1 (en) Eddy-current type damper
JPH0339631Y2 (en)
Tan et al. A compact 4-DoF MR damper with semi-independent damping adjustment
CN213744650U (en) Variable air gap electromagnetic type active vibration absorber
JPH0344617U (en)
JPH041386Y2 (en)
JP7022613B2 (en) Braking device
JPH0318792Y2 (en)
KR101202569B1 (en) Dynamic Absorber Using Electromagnet
KR101906100B1 (en) AC servo motor for capable of reducing the reaction force
JPS61103021A (en) Shaft braking device using magnet

Legal Events

Date Code Title Description
A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20040122