JP2016142285A5 - - Google Patents
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- JP2016142285A5 JP2016142285A5 JP2015016560A JP2015016560A JP2016142285A5 JP 2016142285 A5 JP2016142285 A5 JP 2016142285A5 JP 2015016560 A JP2015016560 A JP 2015016560A JP 2015016560 A JP2015016560 A JP 2015016560A JP 2016142285 A5 JP2016142285 A5 JP 2016142285A5
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- hydraulic
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- spool
- operating device
- working machine
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- 238000001514 detection method Methods 0.000 claims 15
- 230000001276 controlling effect Effects 0.000 claims 3
- 230000001264 neutralization Effects 0.000 claims 2
- 230000000875 corresponding Effects 0.000 claims 1
Claims (9)
前記油圧アクチュエータの駆動方向及び駆動速度を指示する操作装置と、
前記油圧ポンプ装置と前記油圧アクチュエータとを接続する第１油路に設けられた第１スプールを有し、前記第１油路を介して前記油圧アクチュエータに供給される圧油の方向及び流量を制御する第１方向切換弁と、
前記油圧ポンプ装置と前記油圧アクチュエータとを接続する第２油路に設けられた第２スプールを有し、前記第２油路を介して前記油圧アクチュエータに供給される圧油の方向及び流量を制御する第２方向切換弁と、
前記操作装置の操作に応じて、前記第１スプールに対して互いに対向する駆動力を出力する第１及び第２切換駆動装置と、
前記操作装置の操作に応じて、前記第２スプールに対して互いに対向する駆動力を出力する第３及び第４切換駆動装置と、
前記第１及び第２方向切換弁の切換状態を検出する切換状態検出装置と、
前記切換状態検出装置の検出結果に基づいて前記第１及び第２切換駆動装置のいずれか一方が故障状態にあると判定した場合は、前記操作装置の操作に関わらず前記第１方向切換弁が中立位置に保持されるように他方の切換駆動装置を制御し、前記切換状態検出装置の検出結果に基づいて前記第３及び第４切換駆動装置のいずれか一方が故障状態にあると判定した場合は、前記操作装置の操作に関わらず前記第２方向切換弁が中立位置に保持されるように他方の切換駆動装置を制御する制御装置と
を備えたことを特徴とする油圧作業機械の電気式操作装置。 The hydraulic working machine is mounted on a hydraulic working machine having a hydraulic pump device having at least one hydraulic pump and a hydraulic actuator driven by pressure oil supplied from the hydraulic pump device, and controls driving of the hydraulic actuator. In an electric operating device,
An operating device for instructing a driving direction and a driving speed of the hydraulic actuator;
A first spool provided in a first oil passage connecting the hydraulic pump device and the hydraulic actuator, and controlling a direction and a flow rate of pressure oil supplied to the hydraulic actuator via the first oil passage; A first directional control valve that
A second spool provided in a second oil passage connecting the hydraulic pump device and the hydraulic actuator, and controlling a direction and a flow rate of the pressure oil supplied to the hydraulic actuator via the second oil passage; A second directional control valve that
First and second switching drive devices that output driving forces that oppose each other to the first spool in response to an operation of the operation device;
A third and a fourth switching drive device for outputting a driving force opposed to each other with respect to the second spool in response to an operation of the operation device;
A switching state detection device for detecting a switching state of the first and second directional control valves;
When it is determined that one of the first and second switching drive devices is in a failure state based on the detection result of the switching state detection device, the first directional control valve is operated regardless of the operation of the operation device. When the other switching drive device is controlled to be held in the neutral position and it is determined that one of the third and fourth switching drive devices is in a failure state based on the detection result of the switching state detection device Comprises a control device for controlling the other switching drive device so that the second direction switching valve is held in a neutral position regardless of the operation of the operation device. Operating device.
前記制御装置は、前記切換状態検出装置の検出結果に基づいて前記第１及び第２切換駆動装置のいずれか一方が前記第１スプールに対して駆動力を出力できない故障状態にあると判定した場合は、前記第１スプールに対して駆動力を出力しないように他方の切換駆動装置を制御し、前記切換状態検出装置の検出結果に基づいて前記第３及び第４切換駆動装置のいずれか一方が前記第２スプールに対して駆動力を出力できない故障状態にあると判定した場合は、前記第２スプールに対して駆動力を出力しないように他方の切換駆動装置を制御することを特徴とする油圧作業機械の電気式操作装置。 In the electric operating device of the hydraulic working machine according to claim 1,
Wherein the controller determines that there is a fault condition or the hand can not output the driving force to the first spool of the switching state detecting apparatus for detecting that said first and second switching drive unit on the basis of the In this case, the other switching drive device is controlled so as not to output a driving force to the first spool, and one of the third and fourth switching drive devices is based on the detection result of the switching state detection device. If it is determined that the driver is in a failure state where the driving force cannot be output to the second spool, the other switching drive device is controlled so as not to output the driving force to the second spool. Electric operating device for hydraulic working machines.
前記制御装置は、前記切換状態検出装置の検出結果に基づいて前記第１及び第２切換駆動装置のいずれか一方が前記第１スプールに対して前記操作装置の操作に対応しない駆動力を出力する故障状態にあると判定した場合は、前記第１スプールに対して同程度の駆動力を出力するように他方の切換駆動装置を制御し、前記切換状態検出装置の検出結果に基づいて前記第３及び第４切換駆動装置のいずれか一方が前記第２スプールに対して前記操作装置の操作に対応しない駆動力を出力する故障状態にあると判定した場合は、前記第２スプールに対して同等の駆動力を出力するように他方の切換駆動装置を制御することを特徴とする油圧作業機械の電気式操作装置。 In the electric operating device of the hydraulic working machine according to claim 1,
The controller outputs a driving force that does not correspond to the operation of the operating device hand either detection result of the first and second switching drive unit on the basis of the relative said first spool of the switching state detecting device The other switching drive device is controlled to output the same level of driving force to the first spool, and based on the detection result of the switching state detection device, 3 and if the hand or of the fourth switching drive unit is determined to be in the failure state of outputting a driving force that does not correspond to the operation of the operating device with respect to the second spool, relative to the second spool An electric operating device for a hydraulic working machine, wherein the other switching drive device is controlled to output an equivalent driving force.
前記制御装置は、前記切換状態検出装置の検出結果に基づいて前記第１及び第２切換駆動装置のいずれか一方が故障状態にあると判定した場合は、前記操作装置の操作に対応する前記第２方向切換弁への駆動力を増加させ、前記切換状態検出装置の検出結果に基づいて前記第３及び第４切換駆動装置のいずれか一方が故障状態にあると判定した場合は、前記操作装置の操作に対応する前記第１方向切換弁への駆動力を増加させることを特徴とする油圧作業機械の電気式操作装置。 In the electric operating device of the hydraulic working machine according to claim 1,
When the control device determines that one of the first and second switching drive devices is in a failure state based on the detection result of the switching state detection device, the control device corresponds to the operation of the operation device. 2 to increase the driving force in the direction changeover valve, when said hand any one of the third and fourth switching drive unit based on a detection result of the switching state detecting device is judged to be in a fault condition, the operation An electric operating device for a hydraulic working machine, wherein a driving force to the first directional control valve corresponding to the operation of the device is increased.
前記油圧作業機械は、パイロット圧力源を更に備え、
前記第１及び第２方向切換弁は、それぞれ油圧パイロット式の方向切換弁であり、
前記第１〜第４切換駆動装置は、それぞれ前記パイロット圧力源から入力されたパイロット一次圧を前記操作装置の操作量に応じて減圧し、パイロット圧として出力する第１〜第４電磁比例弁であり、
前記切換状態検出装置は、前記第１〜第４電磁比例弁から出力されるパイロット圧をそれぞれ検出する第１〜第４圧力センサを有すること
を特徴とする油圧作業機械の電気式操作装置。 In the electric operating device of the hydraulic working machine according to any one of claims 1 to 4,
The hydraulic working machine further includes a pilot pressure source,
Each of the first and second directional control valves is a hydraulic pilot type directional control valve,
The first to fourth switching drive devices are first to fourth electromagnetic proportional valves that respectively reduce the pilot primary pressure input from the pilot pressure source in accordance with the operation amount of the operating device and output the pilot pressure. Yes,
The switching state detection device includes first to fourth pressure sensors that respectively detect pilot pressures output from the first to fourth electromagnetic proportional valves.
前記第１及び第２方向切換弁は、それぞれ電磁式の方向切換弁であり、
前記第１〜第４切換駆動装置は、それぞれ印加された駆動電流に比例した駆動力を出力する第１〜第４ソレノイドであること
を特徴とする油圧作業機械の電気式操作装置。 In the electric operating device of the hydraulic working machine according to any one of claims 1 to 4,
The first and second directional control valves are electromagnetic directional control valves, respectively.
The electric operating device for a hydraulic working machine, wherein the first to fourth switching drive devices are first to fourth solenoids that output a driving force proportional to an applied driving current.
前記切換状態検出装置は、前記第１スプールに付設されたストロークセンサと、前記第２スプールに付設されたストロークセンサとを有すること
を特徴とする油圧作業機械の電気式操作装置。 In the electric operating device of the hydraulic working machine according to any one of claims 1 to 4,
The switching state detecting device includes a stroke sensor attached to the first spool and a stroke sensor attached to the second spool.
前記油圧アクチュエータは油圧シリンダであり、
前記切換状態検出装置は、前記油圧シリンダに付設されたストロークセンサを有すること
を特徴とする油圧作業機械の電気式操作装置。 In the electric operating device of the hydraulic working machine according to any one of claims 1 to 4,
The hydraulic actuator is a hydraulic cylinder;
The switch operating state detecting device includes a stroke sensor attached to the hydraulic cylinder.
前記油圧アクチュエータは油圧シリンダであり、
前記切換状態検出装置は、前記油圧シリンダのボトム側油室の圧力を検出する第５圧力センサと、前記油圧シリンダのロッド側油室の圧力を検出する第６圧力センサとを有すること
を特徴とする油圧作業機械の電気式操作装置。 In the electric operating device of the hydraulic working machine according to any one of claims 1 to 4,
The hydraulic actuator is a hydraulic cylinder;
The switching state detection device includes a fifth pressure sensor that detects a pressure in a bottom side oil chamber of the hydraulic cylinder, and a sixth pressure sensor that detects a pressure in a rod side oil chamber of the hydraulic cylinder. Electric operating device for hydraulic working machines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015016560A JP6438312B2 (en) | 2015-01-30 | 2015-01-30 | Electric operating device of hydraulic work machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015016560A JP6438312B2 (en) | 2015-01-30 | 2015-01-30 | Electric operating device of hydraulic work machine |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2016142285A JP2016142285A (en) | 2016-08-08 |
| JP2016142285A5 true JP2016142285A5 (en) | 2017-12-28 |
| JP6438312B2 JP6438312B2 (en) | 2018-12-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2015016560A Expired - Fee Related JP6438312B2 (en) | 2015-01-30 | 2015-01-30 | Electric operating device of hydraulic work machine |
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| Country | Link |
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| JP (1) | JP6438312B2 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6496631B2 (en) * | 2015-07-29 | 2019-04-03 | 日立建機株式会社 | Electric operating device of hydraulic work machine |
| DE112017000130B4 (en) * | 2017-01-10 | 2022-02-17 | Komatsu Ltd. | Work vehicle and method of controlling the same |
| JP6731373B2 (en) * | 2017-03-30 | 2020-07-29 | 日立建機株式会社 | Construction machinery |
| KR102597305B1 (en) * | 2018-03-12 | 2023-11-02 | 에이치디현대인프라코어 주식회사 | Electro-hydraulic control apparatus and method for construction machinery |
| JP2021038787A (en) * | 2019-09-03 | 2021-03-11 | 川崎重工業株式会社 | Hydraulic system of construction machine |
| JP7500297B2 (en) | 2020-06-16 | 2024-06-17 | 住友建機株式会社 | Excavator |
| JP7090676B2 (en) * | 2020-10-19 | 2022-06-24 | 株式会社小松製作所 | Control method and work vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3924088B2 (en) * | 1999-03-17 | 2007-06-06 | 日立建機株式会社 | Hydraulic machine control device |
| JP4151500B2 (en) * | 2003-07-18 | 2008-09-17 | トヨタ自動車株式会社 | Hydraulic control device with opposed connection of oil flow control valve |
| JP2006308073A (en) * | 2005-03-30 | 2006-11-09 | Hitachi Constr Mach Co Ltd | Hydraulic drive system for construction machine |
| CN102384303B (en) * | 2010-08-31 | 2014-11-26 | 金子产业株式会社 | Cutoff valve control system |
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