SU1461751A1 - Arrangement for relieving the load of box-section jib of load-handling apparatus - Google Patents
Arrangement for relieving the load of box-section jib of load-handling apparatus Download PDFInfo
- Publication number
- SU1461751A1 SU1461751A1 SU874187521A SU4187521A SU1461751A1 SU 1461751 A1 SU1461751 A1 SU 1461751A1 SU 874187521 A SU874187521 A SU 874187521A SU 4187521 A SU4187521 A SU 4187521A SU 1461751 A1 SU1461751 A1 SU 1461751A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- boom
- load
- stiffener
- box
- cavity
- Prior art date
Links
Landscapes
- Jib Cranes (AREA)
Abstract
Изобретение относитс к подъемно-транспортному машиностроению, а именно к устройствам дл разгрузки стрел грузоподъемных средств, преимущественно кранов. Цель изобретени - повышение надежности. Вдоль нижней стенки 2 коробчатой стрелы 3 закреплено ребро 1 жесткости, полость которого сообщена с гидронасосом 7 и через клапан с гидроцилиндром 10. При увеличении нагрузки стрелы 3 кла-. пан соедин ет полость ребра 1 с гидроцилиндром 10. 2 з.п. ф-лы, 3 ил. с SThe invention relates to a lifting and transport machinery, namely, devices for unloading booms of lifting means, mainly cranes. The purpose of the invention is to increase reliability. Along the lower wall 2 of the box-shaped boom 3, stiffening rib 1 is fixed, the cavity of which is in communication with the hydraulic pump 7 and through the valve with the hydraulic cylinder 10. As the boom 3 pressure increases, pan connects the cavity of the rib 1 with the hydraulic cylinder 10. 2 Cp. f-ly, 3 ill. with s
Description
2 А2 A
f ц f c
Фиг.ЛFig.L
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU874187521A SU1461751A1 (en) | 1987-01-29 | 1987-01-29 | Arrangement for relieving the load of box-section jib of load-handling apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU874187521A SU1461751A1 (en) | 1987-01-29 | 1987-01-29 | Arrangement for relieving the load of box-section jib of load-handling apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
SU1461751A1 true SU1461751A1 (en) | 1989-02-28 |
Family
ID=21282952
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU874187521A SU1461751A1 (en) | 1987-01-29 | 1987-01-29 | Arrangement for relieving the load of box-section jib of load-handling apparatus |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU1461751A1 (en) |
-
1987
- 1987-01-29 SU SU874187521A patent/SU1461751A1/en active
Non-Patent Citations (1)
Title |
---|
Авторское свидетельство СССР № 1289801, кл. В 66 С 23/68, 11.01.85. * |
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