CN101775822B - 挖掘机动臂下降液压控制回路 - Google Patents
挖掘机动臂下降液压控制回路 Download PDFInfo
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- CN101775822B CN101775822B CN2009102154592A CN200910215459A CN101775822B CN 101775822 B CN101775822 B CN 101775822B CN 2009102154592 A CN2009102154592 A CN 2009102154592A CN 200910215459 A CN200910215459 A CN 200910215459A CN 101775822 B CN101775822 B CN 101775822B
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- 239000012530 fluid Substances 0.000 claims description 4
- 239000003921 oil Substances 0.000 abstract description 22
- 239000010720 hydraulic oil Substances 0.000 abstract description 10
- 230000009471 action Effects 0.000 abstract description 6
- 239000010729 system oil Substances 0.000 abstract description 4
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- 230000007423 decrease Effects 0.000 description 6
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- 230000008929 regeneration Effects 0.000 description 6
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- 238000006243 chemical reaction Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
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- 238000010586 diagram Methods 0.000 description 1
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- 239000002699 waste material Substances 0.000 description 1
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CN2009102154592A CN101775822B (zh) | 2009-12-31 | 2009-12-31 | 挖掘机动臂下降液压控制回路 |
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CN2009102154592A CN101775822B (zh) | 2009-12-31 | 2009-12-31 | 挖掘机动臂下降液压控制回路 |
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CN101775822A CN101775822A (zh) | 2010-07-14 |
CN101775822B true CN101775822B (zh) | 2011-12-07 |
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Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102061714B (zh) * | 2010-12-03 | 2012-10-17 | 三一重机有限公司 | 一种用于挖掘机动臂下降的控制方法 |
CN102102370B (zh) * | 2010-12-08 | 2012-06-27 | 太原重工股份有限公司 | 矿用液压挖掘机动臂下放控制*** |
CN102588359B (zh) * | 2012-02-28 | 2014-10-22 | 上海中联重科桩工机械有限公司 | 液压***、挖掘机及液压***的控制方法 |
CN102852186B (zh) * | 2012-09-27 | 2014-10-22 | 太原重工股份有限公司 | 一种用于防止液压挖掘机动臂意外下落的液压装置 |
CN102995680B (zh) * | 2012-12-04 | 2015-03-11 | 山河智能装备股份有限公司 | 一种液压挖掘机的斗杆液压控制回路 |
CN103195124B (zh) * | 2013-04-03 | 2015-09-23 | 徐州徐工挖掘机械有限公司 | 一种挖掘机回油压力控制回路 |
GB2514112C (en) * | 2013-05-13 | 2016-11-30 | Caterpillar Inc | Valve Arrangement |
CN103469847A (zh) * | 2013-09-26 | 2013-12-25 | 镇江金天辰新材料有限公司 | 装载机动臂应急下降*** |
JP6247123B2 (ja) * | 2014-03-19 | 2017-12-13 | ナブテスコ株式会社 | 建設機械用油圧回路 |
CN104986675B (zh) * | 2015-07-02 | 2017-06-30 | 浙江三一装备有限公司 | 一种臂架变幅液压***和起重机 |
CN108118732B (zh) * | 2017-11-20 | 2024-02-02 | 三一重机有限公司 | 一种挖掘机动臂液压***以及控制方法 |
CN110541449B (zh) * | 2019-09-19 | 2024-06-25 | 广西玉柴重工有限公司 | 一种液压挖掘机安全装置 |
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Owner name: QINGDAO LEIWO EXCAVATOR CO., LTD. Free format text: FORMER OWNER: FUTIAN LEIWO INTERNATIONAL HEAVY INDUSTRY CO., LTD. Effective date: 20140827 |
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Effective date of registration: 20140827 Address after: 266500, No. 75 east the Yellow River Road, Huangdao economic and Technological Development Zone, Qingdao, Shandong Patentee after: QINGDAO LOVOL EXCAVATOR Co.,Ltd. Address before: 261206 Beihai South Road, Fangzi District, Shandong, No. 192, No. Patentee before: FOTON LOVOL INTERNATIONAL HEAVY INDUSTRY Co.,Ltd. |
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Address after: 266500, No. 75 east the Yellow River Road, Huangdao economic and Technological Development Zone, Qingdao, Shandong Patentee after: QINGDAO LOVOL ENGINEERING MACHINERY Co.,Ltd. Address before: 266500, No. 75 east the Yellow River Road, Huangdao economic and Technological Development Zone, Qingdao, Shandong Patentee before: QINGDAO LOVOL EXCAVATOR Co.,Ltd. |
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CP01 | Change in the name or title of a patent holder | ||
CP01 | Change in the name or title of a patent holder |
Address after: 266500, No. 75 east the Yellow River Road, Huangdao economic and Technological Development Zone, Qingdao, Shandong Patentee after: LOVOL Engineering Machinery Group Co.,Ltd. Address before: 266500, No. 75 east the Yellow River Road, Huangdao economic and Technological Development Zone, Qingdao, Shandong Patentee before: QINGDAO LOVOL ENGINEERING MACHINERY Co.,Ltd. |
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CP01 | Change in the name or title of a patent holder |
Address after: 266500 No. 75 East Huanghe Road, Huangdao Economic and Technological Development Zone, Qingdao City, Shandong Province Patentee after: Lovol Heavy Industry Group Co.,Ltd. Address before: 266500 No. 75 East Huanghe Road, Huangdao Economic and Technological Development Zone, Qingdao City, Shandong Province Patentee before: LOVOL Engineering Machinery Group Co.,Ltd. |
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