SU620558A1 - Mounted excavator hydraulic system - Google Patents
Mounted excavator hydraulic systemInfo
- Publication number
- SU620558A1 SU620558A1 SU741995563A SU1995563A SU620558A1 SU 620558 A1 SU620558 A1 SU 620558A1 SU 741995563 A SU741995563 A SU 741995563A SU 1995563 A SU1995563 A SU 1995563A SU 620558 A1 SU620558 A1 SU 620558A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- hydraulic
- hpa
- cylinder
- cavity
- line
- Prior art date
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/2203—Arrangements for controlling the attitude of actuators, e.g. speed, floating function
- E02F9/2207—Arrangements for controlling the attitude of actuators, e.g. speed, floating function for reducing or compensating oscillations
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/2217—Hydraulic or pneumatic drives with energy recovery arrangements, e.g. using accumulators, flywheels
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Fluid-Pressure Circuits (AREA)
Description
,(54) ГИДРОСИСТЕМА НАВЕСНОГО ЭКСКАВАТСРА, (54) HYDRAULIC SYSTEM OF EXTENDED EXCAVATS
Изобретение относитс к гидроприводу землеройных машин и может быть нспользовано дл повышени надежности одноковшового навесного экскаватора.The invention relates to a hydraulic drive of earth-moving machines and can be used to increase the reliability of a single-bucket mounted excavator.
Известен гидропривод навесного 9кс каватора, включающий насос, гидрораспр делитель, гндроцилнндры подъема стрелы) и поворота руко ти, гидроаккумулвтор, обратные неуправл емые клапаны и обрат ный управл емый клапан ||l.The hydraulic actuator of the mounted 9x caviar is known, which includes a pump, a hydraulic cam spreader, boom lift and rotation booms), hand crank, hydraulic accumulator, uncontrolled backflow valves and a reverse controlled valve || l.
Недостаток известного гидропривода заключаетс в том, что вследствие выхода основных параметров гидропривода за допустимые пределы снижаетс надежность гидропривода.The disadvantage of the known hydraulic drive is that due to the fact that the basic parameters of the hydraulic drive exceed the permissible limits, the reliability of the hydraulic drive is reduced.
Известен гидропривод экскаватора, в котором гидропневмоаккумул тор (ГПА) включен параллельно поршневым полост м гтропипиидров подъема стрелы через запорный клапан 2.The hydraulic actuator of the excavator is known, in which the hydropneumatic accumulator (HPA) is connected in parallel with the piston chamber and the lift of the boom through the check valve 2.
Недостаток известной схемы заключаетс в отсутствии св зи с гидродилиидром руко ти, в то врем как колебани давлени в последнем могут быть значительны по величине и энерги колебаний может переходить из системы привода руко ти в систему привода стрелы f наоборот.A disadvantage of the known scheme is the lack of communication with the hydrodilidrome of the hand, while the pressure fluctuations in the latter can be significant in magnitude and the energy of the oscillations can pass from the hand drive system to the boom drive system f vice versa.
Целью изобретени вл етс иовышение надежности гидропривода навесного экскаватора.The aim of the invention is to improve the reliability of the hydraulic drive mounted excavator.
Это достигаетс тем, что гидроаккум л тор соединен параллельно поршневым полост м гидроцилшшров привода стрелы и| руко ти через неуправл емые обратные клапаны и св зан со штоковой полостью гтородилиндра руко ти через управл емый обратный клапан..This is achieved by the fact that the hydraulic accumulator torus is connected in parallel to the piston cavity of the hydrocyleshire drive boom and | handles through uncontrolled check valves and connected to the rod cavity of the hand wheel through a controlled check valve ..
На чертеже приведена принципиальна гидра&лическа схема описываемого устройства (показана лишь часть гидросистемы - система привода стрелы и рукоЯти ).The drawing shows the principle hydra & schematic diagram of the device described (only a part of the hydraulic system is shown - the boom and arm drive system).
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU741995563A SU620558A1 (en) | 1974-02-12 | 1974-02-12 | Mounted excavator hydraulic system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU741995563A SU620558A1 (en) | 1974-02-12 | 1974-02-12 | Mounted excavator hydraulic system |
Publications (1)
Publication Number | Publication Date |
---|---|
SU620558A1 true SU620558A1 (en) | 1978-08-25 |
Family
ID=20575555
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU741995563A SU620558A1 (en) | 1974-02-12 | 1974-02-12 | Mounted excavator hydraulic system |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU620558A1 (en) |
-
1974
- 1974-02-12 SU SU741995563A patent/SU620558A1/en active
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