SU737576A1 - Apparatus for protecting dragline excavator boom from extension - Google Patents
Apparatus for protecting dragline excavator boom from extension Download PDFInfo
- Publication number
- SU737576A1 SU737576A1 SU772525081A SU2525081A SU737576A1 SU 737576 A1 SU737576 A1 SU 737576A1 SU 772525081 A SU772525081 A SU 772525081A SU 2525081 A SU2525081 A SU 2525081A SU 737576 A1 SU737576 A1 SU 737576A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- protecting
- extension
- dragline excavator
- excavator boom
- boom
- Prior art date
Links
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- Operation Control Of Excavators (AREA)
- Component Parts Of Construction Machinery (AREA)
Description
II
Изобретение относитс к автоматизации грузоподъемных машин и может быть исполь зовано дл защиты стрелы экскаватора-драг лайна от раст жки.The invention relates to the automation of lifting machines and can be used to protect the boom of an excavator drag line from stretching.
Известны устройства защиты стрелы экскаватора-драглайна от раст жки, включающие датчики положени ковша относительно стрелы, блоки сравнени и испольнительные органы, выполненные как на контактах, так и на бесконтактных элементах 1 и 2.Arrangements for protecting the boom of a dragline excavator against stretching are known, including bucket position sensors relative to the boom, comparison units and executing bodies made both on the contacts and on the contactless elements 1 and 2.
Недостатком подобных устройств вл ; етс то, что по сигналам с датчиков положени ковша непосредственно на границе зоны опасного приближени ковша к стреле производитс замедление приводов, вплоть до остановки, что приводит к снижению производительности и маневренности экскаватора .The disadvantage of such devices ow; According to the signals from the bucket position sensors, directly at the border of the bucket’s dangerous approach zone to the boom, the drives are slowed down to a standstill, which leads to a decrease in the excavator’s performance and maneuverability.
Известно устройство защиты стрелы экскаватора-драглайна от раст жки, содержащее датчик положени ковша, подключенный ко входу блока сравнени с установкой, командоаппарат привода подъема, привод т ги, включающий командоаппарат, последовательно включенные звено ограничени и регул тор тока, выход которого подключен к системе управлени преобразовател 3.A device for protecting a dragline excavator from stretching is known, which contains a bucket position sensor connected to the input of the unit of comparison with the installation, a lifting drive command device, an actuator including a control unit, a series-connected limiting link and a current regulator whose output is connected to the control system converter 3.
Недостатком указанного устройства вл етс то, что дл надежной защиты стрелы экскаватора-драглайна от раст жки с даль . HjHUJHM вьтходом KOBHia на траекторию выноса требуетс наличиё точных данных о величинах статической нагрузки приводов подъема и т ги, скорости изменени статической нагрузки привода, скоростей приводов подъема и т ги, суммь1 этих скоростей и величины, обратной этой сумме, а также точного воспроизведени функциональной зависим ости статической нагрузки привода подъема от производной статической нагрузки привода подъема по суммарной дли15 не канатов подъема и т ги, что сопр жено со значительными трудност ми.The disadvantage of this device is that for reliable protection of the boom of a dragline excavator from stretching from a distance. HjHUJHM's KOBHia output to the trajectory requires the availability of accurate data on the static load of the lift drives and the pull, the rate of change of the static load of the drive, the speeds of the lift drives and the pull, the sum of these speeds and the inverse of this sum, as well as accurate reproduction the static load of the lift drive from the derivative of the static load of the drive lift over the total length of 15 non-lift cables and the pull, which is associated with considerable difficulties.
Цель изобретени - повышение надежности защиты, увеличение производительности и маневренности экскаватора при од20 новременном упрощении контрол положени ковша.The purpose of the invention is to increase the reliability of protection, increase the productivity and maneuverability of the excavator while at the same time simplifying the monitoring of the bucket position.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU772525081A SU737576A1 (en) | 1977-09-27 | 1977-09-27 | Apparatus for protecting dragline excavator boom from extension |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU772525081A SU737576A1 (en) | 1977-09-27 | 1977-09-27 | Apparatus for protecting dragline excavator boom from extension |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU737576A1 true SU737576A1 (en) | 1980-05-30 |
Family
ID=20725184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU772525081A SU737576A1 (en) | 1977-09-27 | 1977-09-27 | Apparatus for protecting dragline excavator boom from extension |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU737576A1 (en) |
-
1977
- 1977-09-27 SU SU772525081A patent/SU737576A1/en active
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