JP4119821B2 - 制振用油圧ダンパ - Google Patents
制振用油圧ダンパ Download PDFInfo
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- JP4119821B2 JP4119821B2 JP2003392742A JP2003392742A JP4119821B2 JP 4119821 B2 JP4119821 B2 JP 4119821B2 JP 2003392742 A JP2003392742 A JP 2003392742A JP 2003392742 A JP2003392742 A JP 2003392742A JP 4119821 B2 JP4119821 B2 JP 4119821B2
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- Prior art keywords
- valve
- hydraulic
- load
- external force
- vibration
- Prior art date
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- 238000013016 damping Methods 0.000 title claims description 36
- 239000010720 hydraulic oil Substances 0.000 claims description 31
- 230000002238 attenuated effect Effects 0.000 claims description 20
- 239000012530 fluid Substances 0.000 claims description 13
- 239000003921 oil Substances 0.000 claims description 9
- 238000005336 cracking Methods 0.000 description 26
- 238000001514 detection method Methods 0.000 description 6
- 238000006073 displacement reaction Methods 0.000 description 6
- 230000001629 suppression Effects 0.000 description 5
- 230000004043 responsiveness Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
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- Vibration Prevention Devices (AREA)
- Fluid-Damping Devices (AREA)
Description
Claims (3)
- シリンダ本体内にて往復動するピストンの両側に形成される両油圧室を連結する油路に設けられた制御弁を備えていて、この制御弁を通して作動油が流れることにより振動外力が減衰される制振用油圧ダンパにおいて、前記制御弁を、前記油路に設けた整流油圧回路に介装され、振動外力が大きくて設定値以上の荷重が作用した際に開作動する大荷重用制御弁と、この大荷重用制御弁を介装した前記整流油圧回路に対して並列に配置され、振動外力が小さくて設定値未満の荷重が作用した際に開作動する小荷重用制御弁により構成し、前記整流油圧回路を作動油が流れるときには、常に前記大荷重用制御弁の流入側から流出側に向かって作動油が流れるように構成してなり、前記大荷重用制御弁が、パイロット操作制御弁であって、ばねで弁座への着座方向に付勢される主弁体と、この主弁体を操作する電磁操作式パイロット弁とを備えており、前記小荷重用制御弁が電磁開閉弁であり、振動外力が大きくて設定値以上の荷重が作用した際には前記電磁操作式パイロット弁が電気制御回路から出力される弁開閉指令信号によって開作動し、振動外力が小さくて設定値未満の荷重が作用した際には前記電磁開閉弁が前記電気制御回路から出力される弁開閉指令信号によって開作動するように設定されていることを特徴とする制振用油圧ダンパ。
- 請求項1に記載の制振用油圧ダンパにおいて、設定値以上の圧力が作用した際に前記大荷重用制御弁の流入側への作動油の流れを許容する流入許容手段を前記整流油圧回路に設けるとともに、前記電気制御回路に代えて、前記電磁操作式パイロット弁と前記電磁開閉弁とに出力する弁開閉指令信号が一つで、振動外力により設定値以上の荷重が作用した際と振動外力により設定値未満の荷重が作用した際の何れのときにも、前記電磁操作式パイロット弁と前記電磁開閉弁とに弁開閉指令信号を出力して前記電磁操作式パイロット弁と前記電磁開閉弁と開作動させる電気制御回路を設けたことを特徴とする制振用油圧ダンパ。
- 請求項1に記載の制振用油圧ダンパにおいて、前記大荷重用制御弁における前記主弁体に設定値以上の圧力が作用した際に前記主弁体が前記ばねに抗して開作動するように前記ばねの荷重を設定するとともに、前記電気制御回路に代えて、前記電磁操作式パイロット弁と前記電磁開閉弁とに出力する弁開閉指令信号が一つで、振動外力により設定値以上の荷重が作用した際と振動外力により設定値未満の荷重が作用した際の何れのときにも、前記電磁操作式パイロット弁と前記電磁開閉弁とに弁開閉指令信号を出力して前記電磁操作式パイロット弁と前記電磁開閉弁と開作動させる電気制御回路を設けたことを特徴とする制振用油圧ダンパ。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003392742A JP4119821B2 (ja) | 2003-11-21 | 2003-11-21 | 制振用油圧ダンパ |
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JP2003392742A JP4119821B2 (ja) | 2003-11-21 | 2003-11-21 | 制振用油圧ダンパ |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005155718A JP2005155718A (ja) | 2005-06-16 |
JP4119821B2 true JP4119821B2 (ja) | 2008-07-16 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2003392742A Expired - Fee Related JP4119821B2 (ja) | 2003-11-21 | 2003-11-21 | 制振用油圧ダンパ |
Country Status (1)
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JP (1) | JP4119821B2 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5695616B2 (ja) * | 2012-08-29 | 2015-04-08 | 太平電業株式会社 | ボイラの解体方法 |
CN114857206B (zh) * | 2022-07-06 | 2022-09-23 | 太原理工大学 | 一种基于电液复合缸的主动控制减振系统及方法 |
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2003
- 2003-11-21 JP JP2003392742A patent/JP4119821B2/ja not_active Expired - Fee Related
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JP2005155718A (ja) | 2005-06-16 |
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