JP6901441B2 - 油圧駆動装置 - Google Patents
油圧駆動装置 Download PDFInfo
- Publication number
- JP6901441B2 JP6901441B2 JP2018145567A JP2018145567A JP6901441B2 JP 6901441 B2 JP6901441 B2 JP 6901441B2 JP 2018145567 A JP2018145567 A JP 2018145567A JP 2018145567 A JP2018145567 A JP 2018145567A JP 6901441 B2 JP6901441 B2 JP 6901441B2
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic pump
- hydraulic
- flow rate
- pump
- discharge
- 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.)
- Active
Links
- 239000003921 oil Substances 0.000 claims description 49
- 238000003745 diagnosis Methods 0.000 claims description 21
- 238000001514 detection method Methods 0.000 claims description 11
- 238000005336 cracking Methods 0.000 claims description 9
- 239000010720 hydraulic oil Substances 0.000 claims description 7
- 238000004891 communication Methods 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 description 14
- 238000000034 method Methods 0.000 description 13
- 230000008569 process Effects 0.000 description 12
- 238000004364 calculation method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000001276 controlling effect Effects 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 208000023514 Barrett esophagus Diseases 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
Images
Landscapes
- Fluid-Pressure Circuits (AREA)
- Operation Control Of Excavators (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018145567A JP6901441B2 (ja) | 2018-08-02 | 2018-08-02 | 油圧駆動装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018145567A JP6901441B2 (ja) | 2018-08-02 | 2018-08-02 | 油圧駆動装置 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2020020421A JP2020020421A (ja) | 2020-02-06 |
| JP2020020421A5 JP2020020421A5 (enExample) | 2020-09-24 |
| JP6901441B2 true JP6901441B2 (ja) | 2021-07-14 |
Family
ID=69589755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2018145567A Active JP6901441B2 (ja) | 2018-08-02 | 2018-08-02 | 油圧駆動装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP6901441B2 (enExample) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0694868B2 (ja) * | 1983-01-19 | 1994-11-24 | 日立建機株式会社 | 油圧ポンプの故障診断装置 |
| JPH1054370A (ja) * | 1996-08-12 | 1998-02-24 | Hitachi Constr Mach Co Ltd | 作業機械の油圧ポンプ故障診断装置 |
| JP3850617B2 (ja) * | 2000-02-28 | 2006-11-29 | 日立建機株式会社 | 油圧作業機のポンプ監視装置 |
-
2018
- 2018-08-02 JP JP2018145567A patent/JP6901441B2/ja active Active
Also Published As
| Publication number | Publication date |
|---|---|
| JP2020020421A (ja) | 2020-02-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101973872B1 (ko) | 작업 기계의 유압 구동 시스템 | |
| JP5965502B1 (ja) | 建設機械の油圧駆動システム | |
| JP5651099B2 (ja) | プランジャポンプの故障診断装置 | |
| CN114270041B (zh) | 工程机械 | |
| EP2716919A1 (en) | Rotary work machine | |
| EP2733362A1 (en) | Hydraulic actuator damping control system for construction machinery | |
| WO2019049435A1 (ja) | 建設機械 | |
| KR101832080B1 (ko) | 하이브리드 건설 기계의 제어 시스템 | |
| EP3106677A1 (en) | Hydraulic drive device for construction machine | |
| US9903393B2 (en) | Construction machine | |
| US11162242B2 (en) | Slewing-type work machine | |
| WO2016056334A1 (ja) | 建設機械の油圧制御装置 | |
| JP2020051110A (ja) | 建設機械 | |
| US9725878B2 (en) | Hybrid-type construction machine | |
| KR102514523B1 (ko) | 건설기계의 유압 제어 장치 및 유압 제어 방법 | |
| JP2016065637A (ja) | 油圧回路における制御バルブの故障診断システム | |
| JP2020085194A (ja) | 建設機械 | |
| EP3722518B1 (en) | Slewing-type hydraulic work machine | |
| JP6901441B2 (ja) | 油圧駆動装置 | |
| CN113316673B (zh) | 作业机械 | |
| CN104912878B (zh) | 混合动力建筑机械的控制系统 | |
| JP2021063524A (ja) | 建設機械 | |
| JP7670539B2 (ja) | 作業機械 | |
| JP2001355257A (ja) | バックホウの油圧装置 | |
| JP2015135031A (ja) | 走行式油圧作業機械 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20200812 |
|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20200812 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20210519 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20210608 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20210617 |
|
| R150 | Certificate of patent or registration of utility model |
Ref document number: 6901441 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |