CN110513346B - 一种挖掘机液压控制系统及方法 - Google Patents
一种挖掘机液压控制系统及方法 Download PDFInfo
- Publication number
- CN110513346B CN110513346B CN201910879863.3A CN201910879863A CN110513346B CN 110513346 B CN110513346 B CN 110513346B CN 201910879863 A CN201910879863 A CN 201910879863A CN 110513346 B CN110513346 B CN 110513346B
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- Prior art keywords
- electric control
- control valve
- way electric
- valve
- ludv
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- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000003921 oil Substances 0.000 claims description 220
- 238000006073 displacement reaction Methods 0.000 claims description 10
- 239000010729 system oil Substances 0.000 claims description 6
- 239000010720 hydraulic oil Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
- F15B11/17—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors using two or more pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/023—Excess flow valves, e.g. for locking cylinders in case of hose burst
Abstract
Description
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201910879863.3A CN110513346B (zh) | 2019-09-18 | 2019-09-18 | 一种挖掘机液压控制系统及方法 |
Applications Claiming Priority (1)
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CN201910879863.3A CN110513346B (zh) | 2019-09-18 | 2019-09-18 | 一种挖掘机液压控制系统及方法 |
Publications (2)
Publication Number | Publication Date |
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CN110513346A CN110513346A (zh) | 2019-11-29 |
CN110513346B true CN110513346B (zh) | 2021-05-11 |
Family
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CN201910879863.3A Active CN110513346B (zh) | 2019-09-18 | 2019-09-18 | 一种挖掘机液压控制系统及方法 |
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CN (1) | CN110513346B (zh) |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102139830B (zh) * | 2011-01-27 | 2012-11-07 | 天津山河装备开发有限公司 | 适用于履带式起重机负载敏感双功率控制装置 |
CN104314927A (zh) * | 2014-10-14 | 2015-01-28 | 浙江三一装备有限公司 | 一种负载敏感液压控制系统及方法和工程机械 |
CN105155610B (zh) * | 2015-08-27 | 2017-08-29 | 中国航空工业集团公司西安飞行自动控制研究所 | 一种液压挖掘机功率保护控制方法 |
CN107420378B (zh) * | 2017-06-28 | 2018-12-11 | 合肥工业大学 | 一种液压机驱动系统匹配节能方式 |
CN108266358B (zh) * | 2018-01-26 | 2023-12-12 | 中航力源液压股份有限公司 | 一种变量泵操作手柄全行程控制装置及其复合控制方法 |
CN108825571A (zh) * | 2018-09-04 | 2018-11-16 | 阜新北鑫星液压有限公司 | 一种负荷敏感变量齿轮泵系统 |
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2019
- 2019-09-18 CN CN201910879863.3A patent/CN110513346B/zh active Active
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Publication number | Publication date |
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CN110513346A (zh) | 2019-11-29 |
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Legal Events
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PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
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GR01 | Patent grant | ||
GR01 | Patent grant | ||
PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Hydraulic control system and method for excavator Effective date of registration: 20211228 Granted publication date: 20210511 Pledgee: Shandong Jiaxiang Rural Commercial Bank Co.,Ltd. Pledgor: Jining haitui Heavy Industry Technology Co.,Ltd. Registration number: Y2021980016777 |
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PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230116 Granted publication date: 20210511 Pledgee: Shandong Jiaxiang Rural Commercial Bank Co.,Ltd. Pledgor: Jining haitui Heavy Industry Technology Co.,Ltd. Registration number: Y2021980016777 |
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PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
CP01 | Change in the name or title of a patent holder |
Address after: 272100 Junction of Jiade Road and Hongxiang Road, Jining Economic and Technological Development Zone, Shandong Province Patentee after: Jining Haitui Heavy Industry Machinery Co.,Ltd. Address before: 272100 Junction of Jiade Road and Hongxiang Road, Jining Economic and Technological Development Zone, Shandong Province Patentee before: Jining haitui Heavy Industry Technology Co.,Ltd. |
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CP01 | Change in the name or title of a patent holder | ||
PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A hydraulic control system and method for excavators Effective date of registration: 20230609 Granted publication date: 20210511 Pledgee: Shandong Jiaxiang Rural Commercial Bank Co.,Ltd. Pledgor: Jining Haitui Heavy Industry Machinery Co.,Ltd. Registration number: Y2023980043059 |
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PE01 | Entry into force of the registration of the contract for pledge of patent right |