JPH0318264U - - Google Patents
Info
- Publication number
- JPH0318264U JPH0318264U JP7906989U JP7906989U JPH0318264U JP H0318264 U JPH0318264 U JP H0318264U JP 7906989 U JP7906989 U JP 7906989U JP 7906989 U JP7906989 U JP 7906989U JP H0318264 U JPH0318264 U JP H0318264U
- Authority
- JP
- Japan
- Prior art keywords
- frame
- predetermined direction
- fixed
- reaction bolt
- guide rod
- 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.)
- Granted
Links
- 238000013016 damping Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 2
Landscapes
- Component Parts Of Construction Machinery (AREA)
- Body Structure For Vehicles (AREA)
- Vibration Prevention Devices (AREA)
Description
第１図は本考案の一実施例に係るダイナミツク
ダンパーの図でＡは側面図、Ｂは正面図（但し一
部断面で示す）、第２図は上記実施例の要部斜視
図、第３図は第２図の装置台１３を省いて示した
斜視図、第４図は上記実施例の検出ロツド８、連
結ロツド１０及び反力ボルト９の結合状態を示す
縦断面図、第５図は上記実施例をキヤツプに取付
けた状態を示す斜視図、第６図は第５図の状態で
実施例をカバー２２で被つた状態を示す斜視図、
第７図は上記実施例のダイナミツクダンパー設計
の基本となる２自由度系振動モデル図、第８図は
上記実施例のダイナミツクダンパーを装備した場
合と、しない場合（従来例と同様）のキヤブの振
動特性図、第９図は従来例の油圧シヨベルの機体
部を前方から見た図、第１０図は従来例の油圧シ
ヨベルの機体部を側方から見た図、第１１図は従
来の油圧シヨベルの全体の側面図である。
４……支持台、５……シヤフト、６……質量体
、７……高減衰ゴム材、８……検出ロツド、９…
…反力ボルト、１０……連結ロツド、１１……ブ
ロツク、１２……ブロツク、１３……装置台、１
４……軸受、１５……スライド用ノブ、１６……
スライドブロツク、１７……案内ロツド、１８…
…固定ブロツク、１９……コイルばね、２０……
ゴム受、２１……ナツト、２２……カバー、２３
……ボルト固定用ノブ、２４……ついたて、２５
……ブロツク案内ロツド、２６……スプラインブ
ツシユ。
Fig. 1 is a diagram of a dynamic damper according to an embodiment of the present invention, A is a side view, B is a front view (partially shown in section), Fig. 2 is a perspective view of the main part of the above embodiment, 3 is a perspective view with the device stand 13 of FIG. 2 omitted, FIG. 4 is a vertical cross-sectional view showing the state of connection of the detection rod 8, connection rod 10, and reaction bolt 9 of the above embodiment, and FIG. 6 is a perspective view showing the above embodiment attached to a cap, FIG. 6 is a perspective view showing the embodiment in the state shown in FIG. 5 covered with a cover 22,
Fig. 7 is a two-degree-of-freedom system vibration model diagram that is the basis of the dynamic damper design of the above embodiment, and Fig. 8 is a diagram of the vibration model with and without the dynamic damper of the above embodiment (same as the conventional example). Figure 9 is a view of the body of a conventional hydraulic excavator seen from the front, Figure 10 is a view of the body of a conventional hydraulic excavator seen from the side, and Figure 11 is a diagram of the vibration characteristics of the cab. FIG. 2 is a side view of the entire hydraulic excavator. 4... Support stand, 5... Shaft, 6... Mass body, 7... High damping rubber material, 8... Detection rod, 9...
...Reaction bolt, 10...Connection rod, 11...Block, 12...Block, 13...Device stand, 1
4... Bearing, 15... Slide knob, 16...
Slide block, 17... Guide rod, 18...
... Fixed block, 19 ... Coil spring, 20 ...
Rubber holder, 21...Nut, 22...Cover, 23
... Bolt fixing knob, 24 ... Freshly attached, 25
...Block guide rod, 26...Spline bush.
Claims (1)
に両端を高減衰ゴム材に拘束されて上記所定方向
に弾性振動可能に保持された質量体と、同質量体
のほぼ中央より突設された検出ロツドと、同検出
ロツドの他端にほぼ直角方向にかつ上記枠体の所
定方向に対し直交方向に剛結された連結ロツドと
、同連結ロツドの他端に上記検出ロツドのほぼ平
行にかつ軸回わりに回転及び固定可能に連結され
た反力ボルトと、同反力ボルトにねじ移動可能に
螺合されたスライドと、同スライドを上記反力ボ
ルトと直交する方向にかつ上記枠体の所定方向に
摺動可能に貫通する案内ロツドと、同案内ロツド
の両端に固設され上記スライドのねじ移動に応じ
て移動可能にかつ上記枠体の所定方向には移動を
拘束された固定ブロツクと、同固定ブロツクと上
記反力ボルトとの間の上記案内ロツドに挿通され
た２個のコイルばねと、上記枠体に設けられて上
記連結ロツドを回転可能に支承する軸受とを具備
してなることを特徴とするキヤブ用ダイナミツク
ダンパー。 A frame body that can be fixed to the cab; a mass body that is held in a predetermined direction by a high-damping rubber material at both ends so as to be able to vibrate elastically in the predetermined direction; and a mass body that protrudes from approximately the center of the mass body. a connecting rod rigidly connected to the other end of the detecting rod in a direction substantially perpendicular to the predetermined direction of the frame; a reaction bolt coupled to the reaction bolt so as to be rotatable and fixed about an axis, a slide movably screwed to the reaction bolt, and a slide connected to the frame in a direction perpendicular to the reaction bolt. a guide rod that passes through the slider in a predetermined direction, and a fixed block that is fixed to both ends of the guide rod and is movable in accordance with the screw movement of the slide, but is restrained from moving in a predetermined direction of the frame. and two coil springs inserted through the guide rod between the fixing block and the reaction bolt, and a bearing provided on the frame and rotatably supporting the connecting rod. A dynamic damper for cabs that is characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7906989U JPH0617884Y2 (en) | 1989-07-06 | 1989-07-06 | Dynamic damper for cab |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7906989U JPH0617884Y2 (en) | 1989-07-06 | 1989-07-06 | Dynamic damper for cab |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0318264U true JPH0318264U (en) | 1991-02-22 |
| JPH0617884Y2 JPH0617884Y2 (en) | 1994-05-11 |
Family
ID=31622901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7906989U Expired - Lifetime JPH0617884Y2 (en) | 1989-07-06 | 1989-07-06 | Dynamic damper for cab |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0617884Y2 (en) |
-
1989
- 1989-07-06 JP JP7906989U patent/JPH0617884Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0617884Y2 (en) | 1994-05-11 |
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