JPS622035A - Dynamic vibration damper - Google Patents
Dynamic vibration damperInfo
- Publication number
- JPS622035A JPS622035A JP60141193A JP14119385A JPS622035A JP S622035 A JPS622035 A JP S622035A JP 60141193 A JP60141193 A JP 60141193A JP 14119385 A JP14119385 A JP 14119385A JP S622035 A JPS622035 A JP S622035A
- Authority
- JP
- Japan
- Prior art keywords
- damper
- dynamic vibration
- seat plate
- weight
- center
- 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
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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F7/00—Vibration-dampers; Shock-absorbers
- F16F7/10—Vibration-dampers; Shock-absorbers using inertia effect
- F16F7/104—Vibration-dampers; Shock-absorbers using inertia effect the inertia member being resiliently mounted
- F16F7/116—Vibration-dampers; Shock-absorbers using inertia effect the inertia member being resiliently mounted on metal springs
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
Description
【発明の詳細な説明】 この発明は振子式動吸振器に関するものである。[Detailed description of the invention] This invention relates to a pendulum type dynamic vibration absorber.
起振力の角振動数が変化する場合に用いられる動吸振器
は、その固有振動数が容易に変えられることが必要であ
り、また、減衰係数を調整できることが必要である。A dynamic vibration absorber used when the angular frequency of the excitation force changes needs to be able to easily change its natural frequency and also need to be able to adjust its damping coefficient.
しかし、従来簡単な構成で、これらの要求を充足できる
ような動吸振器は見当らない。However, no dynamic vibration reducer has been found that can satisfy these requirements with a simple configuration.
この発明は上記の要求を充足できるようにした動吸振器
を提供することを目的とするものである。The object of the present invention is to provide a dynamic vibration absorber that can satisfy the above requirements.
この発明の動吸振器は、枠体内の中心部に座板を揺動自
在に設け、この座板の中央部に重錘を上下動可能に設け
ると共に、上記座板と枠体天板との間にダンパを配設し
てなるものである。In the dynamic vibration absorber of the present invention, a seat plate is swingably provided at the center of the frame, a weight is provided at the center of the seat plate so as to be movable up and down, and the seat plate and the top plate of the frame are connected together. A damper is placed in between.
以下、本発明の一実施例を図面により説明する。筒状枠
体１０天板１ａの中心線上に１組の軸受２，２が設けら
れている。矩形状座板３の長辺側面中央部に、上記軸受
２．２に係合する軸４，４が突設され、座板３が揺動で
きるようになっている。座板３と下座板５との間は、重
錘８を上下案内する複数本の案内棒６を介して連結され
ている。An embodiment of the present invention will be described below with reference to the drawings. A pair of bearings 2, 2 is provided on the center line of the top plate 1a of the cylindrical frame 10. Shafts 4, 4 that engage with the bearings 2.2 are protruded from the center of the long sides of the rectangular seat plate 3, allowing the seat plate 3 to swing. The seat plate 3 and the lower seat plate 5 are connected via a plurality of guide rods 6 that guide a weight 8 up and down.
また、座板３と下座板５との間に、重錘８を上下させる
ためのねじ棒７が設けられている。Further, a threaded rod 7 for raising and lowering the weight 8 is provided between the seat plate 3 and the lower seat plate 5.
そして、重錘８はねじ棒７に螺合する上下のカット９，
９を緩め、案内棒６に沿って上下に移動後、ナツト９，
９を締め付けることによって上下に位置調整できるよう
になっている。一方、座板３と天板１ａとの間に、揺動
軸４に対し対称にダンパ１１が配設されている。このダ
ンパ１１にはオイルダンパ、エアダンパ等が用いられる
。The weight 8 has upper and lower cuts 9 which are screwed onto the threaded rod 7.
After loosening nut 9 and moving it up and down along guide rod 6,
By tightening 9, the position can be adjusted up and down. On the other hand, a damper 11 is arranged symmetrically with respect to the swing shaft 4 between the seat plate 3 and the top plate 1a. As this damper 11, an oil damper, an air damper, or the like is used.
上記の構成により、重錘８を上下して、揺動軸４から重
錘の重心までの長さｔを変えるという簡単な操作によっ
て、振子式動吸振器の固有振動数を変えることができる
。また、ダンパ１１は、１！Ｌ鍾８と一体となって揺動
する座板４と天板１ａとの間に配設されているので、そ
の取付施工は容易である。そして、ダンパ２の減衰係数
を調整することにより、動吸振器の最適減衰′を得るこ
とができる。With the above configuration, the natural frequency of the pendulum dynamic vibration absorber can be changed by a simple operation of moving the weight 8 up and down to change the length t from the swing axis 4 to the center of gravity of the weight. Moreover, the damper 11 is 1! Since it is disposed between the seat plate 4 and the top plate 1a, which swing together with the L peg 8, its installation is easy. By adjusting the damping coefficient of the damper 2, the optimum damping' of the dynamic vibration reducer can be obtained.
この発明の動吸振器は上記のようなもので、動吸振器の
固有振動数を容易に調整することができ、また、最適減
衰を得ることができる。The dynamic vibration reducer of the present invention is as described above, and the natural frequency of the dynamic vibration absorber can be easily adjusted, and optimum damping can be obtained.
第１１図は本発明の一実施例を枠体を縦断した状態で示
す側面図、第２図は第１図のｎ−ｍ線矢祝図である。
Ｉ・・・枠体、１３・・・天板、３・・・座板、８・・
・重錘、１１・・・ダンパ。
第１図 第２図FIG. 11 is a side view showing an embodiment of the present invention with the frame body taken longitudinally, and FIG. 2 is a view taken along the line nm in FIG. 1. I...Frame body, 13...Top plate, 3...Seat plate, 8...
- Weight, 11... damper. Figure 1 Figure 2
Claims (1)
央部に重錘を上下動可能に設けると共に、上記座板と枠
体の天板との間にダンパを配設してなる動吸振器。A seat plate is swingably provided in the center of the frame, a weight is provided in the center of the seat plate so as to be movable up and down, and a damper is provided between the seat plate and the top plate of the frame. A dynamic vibration absorber.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60141193A JPS622035A (en) | 1985-06-27 | 1985-06-27 | Dynamic vibration damper |
| US06/874,486 US4700817A (en) | 1985-06-27 | 1986-06-16 | Dynamic vibration absorber with spring-supported pendulum |
| KR1019860004812A KR910000561B1 (en) | 1985-06-27 | 1986-06-17 | Dynamic vibration absorber with spring-supported pendulum |
| FI862744A FI82758C (en) | 1985-06-27 | 1986-06-26 | Dynamic vibration damper |
| DE8686108762T DE3666612D1 (en) | 1985-06-27 | 1986-06-27 | Dynamic vibration absorber with spring-supported pendulum |
| EP86108762A EP0206348B1 (en) | 1985-06-27 | 1986-06-27 | Dynamic vibration absorber with spring-supported pendulum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60141193A JPS622035A (en) | 1985-06-27 | 1985-06-27 | Dynamic vibration damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS622035A true JPS622035A (en) | 1987-01-08 |
Family
ID=15286322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60141193A Pending JPS622035A (en) | 1985-06-27 | 1985-06-27 | Dynamic vibration damper |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS622035A (en) |
-
1985
- 1985-06-27 JP JP60141193A patent/JPS622035A/en active Pending
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