JPH0331942B2 - - Google Patents
Info
- Publication number
- JPH0331942B2 JPH0331942B2 JP57150135A JP15013582A JPH0331942B2 JP H0331942 B2 JPH0331942 B2 JP H0331942B2 JP 57150135 A JP57150135 A JP 57150135A JP 15013582 A JP15013582 A JP 15013582A JP H0331942 B2 JPH0331942 B2 JP H0331942B2
- Authority
- JP
- Japan
- Prior art keywords
- nut
- vibration damping
- threaded
- threaded rod
- support member
- 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.)
- Expired - Lifetime
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
- F16L3/16—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets with special provision allowing movement of the pipe
- F16L3/20—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets with special provision allowing movement of the pipe allowing movement in transverse direction
- F16L3/202—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets with special provision allowing movement of the pipe allowing movement in transverse direction the transverse movement being converted to a rotational movement
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vibration Dampers (AREA)
Description
【発明の詳細な説明】
本発明は、発電所や化学プラント等における配
管系等の機器を地震等による振動から保護するた
めの制振装置の改良に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a vibration damping device for protecting piping systems and other equipment in power plants, chemical plants, etc. from vibrations caused by earthquakes and the like.
従来この種の制振装置として、制振対象と構築
物へ夫々連結された２つの支持部材間の振動時に
おける相対軸線方向往復動を、互いに螺合するナ
ツトとねじ棒とにより回転運動に変換し、この回
転運動を慣性体に伝え、その慣性を利用して制動
する慣性制振装置が知られている。そしてさら
に、そのような制振装置内に、ねじ棒の回転を増
速させる機構を組み入れ、慣性体の小型化を図る
と共に、低サイクルの振動に対しても敏感に対応
しうるようにしたものが提案されている。 Conventionally, this type of vibration damping device converts the relative axial reciprocating motion during vibration between two supporting members connected to the damping target and the structure into rotational motion using a nut and threaded rod that are screwed together. An inertial vibration damping device is known that transmits this rotational motion to an inertial body and uses the inertia to perform damping. Furthermore, such a vibration damping device incorporates a mechanism that increases the rotation speed of the threaded rod, thereby reducing the size of the inertial body and making it possible to respond sensitively to low-cycle vibrations. is proposed.
しかしながら、内部に増速機構を組み込む場合
には、必然的にその分大型、大重量化せざるを得
ない。従つて、小型軽量で、しかも比較的大きな
増速比が得られる増速機構が望まれる。 However, when a speed increasing mechanism is incorporated inside, the size and weight inevitably increase accordingly. Therefore, there is a need for a speed increasing mechanism that is small and lightweight and can provide a relatively large speed increasing ratio.
従つて、本発明は、小型、軽量で、比較的大き
な増速比が得られる増速機構を内蔵した慣性制振
装置を提供することを目的としている。 SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide an inertial vibration damping device that is small, lightweight, and has a built-in speed increasing mechanism that can provide a relatively large speed increasing ratio.
以下図について本発明の実施例を説明する。一
方の支持部材である主筒１は、一端ふたに引手１
ａを具え、これを介して構築物または配管系等の
制振対象へ連結可能である。 Embodiments of the invention will be described below with reference to the figures. The main cylinder 1, which is one of the supporting members, has a handle 1 on the lid at one end.
a, through which it can be connected to a vibration damping object such as a structure or piping system.
他方の支持部材である副筒２は、内方が主筒１
内に軸線方向出入自在に挿入され、外方端には引
手２ａを具えている。副筒２は引手２ａを介して
構築物または制振対象へ連結される。 The sub cylinder 2, which is the other supporting member, has the main cylinder 1 on the inside.
It is inserted into the inside so that it can be moved in and out in the axial direction, and the outer end is provided with a handle 2a. The sub-tube 2 is connected to a structure or a vibration damping object via a handle 2a.
副筒２の主筒１内端部には第１のボールナツト
３が固着され、他方主筒１内中間部には第２のボ
ールナツト４が固着されている。両ナツト３，４
は、同一方向に螺刻されているが、互いにねじピ
ツチが異なつている。 A first ball nut 3 is fixed to the inner end of the main cylinder 1 of the sub-cylinder 2, and a second ball nut 4 is fixed to the intermediate part of the main cylinder 1. both nuts 3,4
are threaded in the same direction, but have different thread pitches.
第１のナツト３には、第１のねじ棒５が螺合さ
れ、副筒２内に出入自在に受け入れられており、
第２のナツト４には第２のねじ棒６が螺合され主
筒１内軸線方向移動自在である。第１および第２
のねじ棒５，６は、互いに慣性体７内で連結され
一体である。従つて、ナツト３，４に対応する第
１、第２のねじ棒５，６のねじピツチの差に基づ
いて、ナツト３，４はねじ棒５，６上を互いに相
対変位するようになつている。 A first threaded rod 5 is screwed into the first nut 3 and is received in the sub-tube 2 so as to be freely removable.
A second threaded rod 6 is screwed into the second nut 4 and is movable in the axial direction within the main cylinder 1. 1st and 2nd
The threaded rods 5 and 6 are connected to each other within the inertial body 7 and are integral. Therefore, based on the difference in thread pitch between the first and second threaded rods 5, 6 corresponding to the nuts 3, 4, the nuts 3, 4 are displaced relative to each other on the threaded rods 5, 6. There is.
次に作用を説明する。この制振装置は、主筒１
または副筒２のいずれか一方を構築物へ、他方を
制振対象へ連結して用いる。そして、制振対象と
構築物との間に、温度変化による緩慢な相対変位
が生じた場合には、第１および第２のねじ棒５，
６を慣性体７と一体にゆつくりと回転させてこれ
を無理なく許容する。 Next, the action will be explained. This vibration damping device
Alternatively, either one of the sub-tubes 2 may be connected to a structure and the other may be connected to a vibration damping target. When a slow relative displacement occurs between the vibration damping target and the structure due to temperature change, the first and second threaded rods 5,
6 is rotated slowly together with the inertial body 7, and this is allowed without difficulty.
一方地震等により制振対象と構築物との間に高
加速度の変位が生じた場合には、慣性により、ね
じ棒５，６の回転に慣性体７が追従できず、これ
が振動に対する大きな反力となる。 On the other hand, when a high acceleration displacement occurs between the vibration damping target and the structure due to an earthquake, etc., the inertia body 7 cannot follow the rotation of the threaded rods 5 and 6 due to inertia, and this causes a large reaction force against the vibration. Become.
なお、この場合、単一のねじ棒を主筒に回転自
在に支持し、これに副筒のナツトを螺合させる場
合に比して、ねじ棒５，６の回転が増速される。
即ち、例えば第１のねじ棒５のピツチをP1、第
２のねじ棒６のピツチをP2とすると、第１のナ
ツト３が第１のねじ棒５上をP1だけ移動した場
合、ねじ棒５，６は一体に回転し、第２のナツト
４が第２のねじ棒６上をP2だけ移動する。従つ
て、逆に第１のナツト３と第２のナツト４とが相
対的に｜P1−P2｜だけ移動した場合には、ねじ
棒５，６が１回転することとなる。具体的には、
振幅Ｌの振動に対して、単一のねじ棒を単一のナ
ツトに螺合させて回転を得る制振装置では回転数
がN1＝Ｌ／P1となり、本実施例のものでは回転
数がＮ＝Ｌ／｜P1−P2｜となるから、比較する
とＮ／N1＝P1／｜P1−P2｜倍に増速されること
となる。 In this case, the rotation speed of the threaded rods 5 and 6 is increased compared to the case where a single threaded rod is rotatably supported in the main cylinder and a nut of the sub-cylinder is screwed onto the single threaded rod.
That is, for example, if the pitch of the first threaded rod 5 is P 1 and the pitch of the second threaded rod 6 is P 2 , then when the first nut 3 moves on the first threaded rod 5 by P 1 , The threaded rods 5, 6 rotate together, and the second nut 4 moves on the second threaded rod 6 by P2 . Therefore, when the first nut 3 and the second nut 4 move relative to each other by |P 1 -P 2 |, the threaded rods 5 and 6 rotate once. in particular,
In a vibration damping device that obtains rotation by screwing a single threaded rod into a single nut in response to vibration of amplitude L, the number of rotations is N 1 = L/P 1 , and in this example, the number of rotations is N 1 = L / P 1. Since N=L/|P 1 -P 2 |, the speed is increased by a factor of N/N 1 =P 1 /|P 1 -P 2 |.
なお、本発明は、上記の実施例に限定されるも
のではなく、例えば、ねじ棒に間接的に慣性体を
連結し、この慣性体の慣性を利用して摩擦ブレー
キを起動させる形式のものの他、回転慣性体利用
の公知の各種制振装置に適用可能である。 It should be noted that the present invention is not limited to the above-mentioned embodiments, and may include, for example, a type in which an inertial body is indirectly connected to a threaded rod and the inertia of this inertial body is used to activate a friction brake. , it can be applied to various known vibration damping devices that utilize a rotating inertial body.
以上のように、本発明は、ねじピツチを異にす
る同一方向に螺刻されたナツト４，３を具えた支
持部材たる主筒１および副筒２のナツト３，４に
夫々互いに一体の第１および第２のねじ棒５，６
を螺合させ、ねじ棒５，６とナツト３，４との間
の相対移動によりねじ棒５，６上の慣性体７を増
速回転させる構成としたため、増速機構を小型、
軽量化でき、しかも比較的大きな増速比を得るこ
とができるという効果が得られる。 As described above, the present invention provides nuts 3, 4 of the main cylinder 1 and the sub cylinder 2, which are supporting members, each having nuts 4, 3 threaded in the same direction with different thread pitches, and which are integral with each other. 1 and 2nd threaded rods 5, 6
are screwed together, and the relative movement between the threaded rods 5, 6 and the nuts 3, 4 causes the inertia bodies 7 on the threaded rods 5, 6 to rotate at an increased speed, making the speed increasing mechanism small and
The advantage is that the weight can be reduced and a relatively large speed increasing ratio can be obtained.
図面は本発明の実施の一例を示す断面図であ
る。
１……主筒、２……副筒、３……第１のナツ
ト、４……第２のナツト、５……第１のねじ棒、
６……第２のねじ棒、７……慣性体。
The drawing is a sectional view showing an example of implementation of the present invention. 1... Main cylinder, 2... Sub-cylinder, 3... First nut, 4... Second nut, 5... First threaded rod,
6... Second threaded rod, 7... Inertial body.
Claims (1)
持部材と、構築物または制振対象に連結される他
方の支持部材と、他方の支持部材に固定された第
１のナツトと、一方の支持部材に固定され、第１
のナツトとねじピツチを異にする同一方向に螺刻
された第２のナツトと、第１のナツト及び第２の
ナツトに夫々螺合する互いに結合された第１のね
じ棒及びこれよりも小ピツチの第２のねじ棒と、
第１及び第２のねじ棒上に直接または間接に設け
られた慣性体とを具備したことを特徴とする増速
機構付慣性制振装置。1. One support member connected to the vibration damping target or structure, the other support member connected to the structure or vibration damping target, the first nut fixed to the other support member, and the first nut fixed to the one support member. fixed and first
a second nut threaded in the same direction with a different thread pitch; a first threaded rod coupled to each other that is threaded into the first nut and the second nut, respectively; Pitch's second threaded rod,
An inertial vibration damping device with a speed increasing mechanism, comprising an inertial body provided directly or indirectly on the first and second threaded rods.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15013582A JPS5940038A (en) | 1982-08-31 | 1982-08-31 | Inertial vibration damping device equipped with overdrive mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15013582A JPS5940038A (en) | 1982-08-31 | 1982-08-31 | Inertial vibration damping device equipped with overdrive mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5940038A JPS5940038A (en) | 1984-03-05 |
| JPH0331942B2 true JPH0331942B2 (en) | 1991-05-09 |
Family
ID=15490246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15013582A Granted JPS5940038A (en) | 1982-08-31 | 1982-08-31 | Inertial vibration damping device equipped with overdrive mechanism |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5940038A (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012007635A (en) * | 2010-06-22 | 2012-01-12 | Shimizu Corp | Rotating inertial mass damper |
| JP5516978B2 (en) * | 2010-08-25 | 2014-06-11 | 清水建設株式会社 | Vibration damper device |
| JP5861883B2 (en) * | 2011-12-28 | 2016-02-16 | 清水建設株式会社 | Rotating inertia mass damper and brace damper and brace frame |
| CN104401195B (en) * | 2014-11-14 | 2016-08-24 | 江苏大学 | The ball screw type of the variable used appearance coefficient of machinery is used to container |
| JP6215436B2 (en) * | 2016-12-02 | 2017-10-18 | 東芝三菱電機産業システム株式会社 | Damper device |
| CN112854508B (en) * | 2021-01-08 | 2022-10-28 | 北京工业大学 | Particle inertial volume damping device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2840119A1 (en) * | 1978-09-15 | 1980-03-27 | Hoechst Ag | ANTHRACHINONE AZO COMPOUNDS, THEIR PRODUCTION AND USE AS DYES |
-
1982
- 1982-08-31 JP JP15013582A patent/JPS5940038A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5940038A (en) | 1984-03-05 |
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