SU512980A2 - Hydraulic drive jib self-propelled crane - Google Patents
Hydraulic drive jib self-propelled craneInfo
- Publication number
- SU512980A2 SU512980A2 SU2083223A SU2083223A SU512980A2 SU 512980 A2 SU512980 A2 SU 512980A2 SU 2083223 A SU2083223 A SU 2083223A SU 2083223 A SU2083223 A SU 2083223A SU 512980 A2 SU512980 A2 SU 512980A2
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- hydraulic drive
- propelled crane
- hydraulic
- valve
- jib self
- Prior art date
Links
Landscapes
- Jib Cranes (AREA)
- Control And Safety Of Cranes (AREA)
Description
(54) ГИДРАВЛИЧЕСКИЙ ПРИВОД СТРЕЛОВОГО САМОХОДНОГО(54) HYDRAULIC ACTUATOR DRIVE
КРАНАCRANE
t Распределительный блок, управл5иочшй механизмом поворота платформы и гидроцили дром стрелоподъемного механизма, имеет ихВухпозиционный клапан объединени потопов 9 двух насосов.t The distribution block, the control mechanism for the rotation of the platform and the hydrocyles of the core of the boom-lifting mechanism, have their Drainage Control Valve combining 9 two pumps.
В магистрали, подвод щей жидкость к гидромотору грузовой лебедки, параллельно устайовлены тормозной клапан 10 и гидрозамок 11. Полость управлени гидрозамка 11 магистралью 12 соединена с линией 13 выход шей из клапана объединени потоков. В этой линии между точкой соединени с нагнетательной магистралью насоса и точкой присоединени магистрали 12 расположен обратный клапан 14.A brake valve 10 and a hydraulic lock 11 are installed in parallel in the line supplying the liquid to the hydraulic motor of the cargo winch. The control chamber of the hydraulic lock 11 by means of line 12 is connected to the line 13 by the outlet of the neck from the flow combining valve. A check valve 14 is located in this line between the connection point with the discharge line of the pump and the connection point of the line 12.
Гидропривод работает следующим образомThe hydraulic actuator works as follows
При необходимости повыщени скорости опускани пустого крюка (холоста операци поток жидкости от насоса 1, проход через включенный при этом клапан 9 распределител 3, обратный клапан 14, по линии 13 суммируетс с потоком насоса 2. Одновременно давление в магистрали 12 открываетIf it is necessary to increase the speed of lowering the empty hook (idle operation, the flow of fluid from the pump 1, the passage through the valve 9 of the distributor 3 turned on while the check valve 14, along line 13 is added to the flow of the pump 2. At the same time the pressure in the line 12 opens
гидрозамок 11. Поток жидкости, выход щей из гидромотора 7, работающего при этом с удвоенной скоростью врашени , проходит частично через тормозной клапан 10 и частично через открытый при этом гидрозамок 11. Этим и обеспечиваетс снижение потерь мощности привода, которые бы имели место при прохождении суммарного потока только через тормозной клапан.hydraulic lock 11. The flow of fluid leaving the hydraulic motor 7, operating at double the speed of adhesion, passes partly through the brake valve 10 and partly through the hydraulic lock 11 open at the same time. This reduces the drive power losses that would occur when the total flow only through the brake valve.
10ten
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU2083223A SU512980A2 (en) | 1974-12-09 | 1974-12-09 | Hydraulic drive jib self-propelled crane |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU2083223A SU512980A2 (en) | 1974-12-09 | 1974-12-09 | Hydraulic drive jib self-propelled crane |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU451608A Addition SU102495A1 (en) | 1954-05-24 | 1954-05-24 | Method for measuring the time constant of capacitors by self-discharge method |
Publications (1)
Publication Number | Publication Date |
---|---|
SU512980A2 true SU512980A2 (en) | 1976-05-05 |
Family
ID=20603252
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU2083223A SU512980A2 (en) | 1974-12-09 | 1974-12-09 | Hydraulic drive jib self-propelled crane |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU512980A2 (en) |
-
1974
- 1974-12-09 SU SU2083223A patent/SU512980A2/en active
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