SU1539320A1 - Hydraulic jack of shield - Google Patents
Hydraulic jack of shield Download PDFInfo
- Publication number
- SU1539320A1 SU1539320A1 SU853999725A SU3999725A SU1539320A1 SU 1539320 A1 SU1539320 A1 SU 1539320A1 SU 853999725 A SU853999725 A SU 853999725A SU 3999725 A SU3999725 A SU 3999725A SU 1539320 A1 SU1539320 A1 SU 1539320A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- grooves
- shield
- rod
- half rings
- protrusions
- Prior art date
Links
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
Изобретение относитс к горной промышленности, а именно к щитовым гидродомкратам, и может быть использовано в проходческих щитах при строительстве тоннелей. Цель изобретени - повышение работоспособности за счет исключени попадани продуктов износа в зону трени уплотнительных элементов. Щитовой домкрат состоит из корпуса 1 с подвод щими каналами, передней крышки, задней крышки, штока, выполненного с выступами и кольцевыми канавками, поршневых полуколец 7, расположенных в канавках штока, между которыми установлены уплотнительные манжеты 8. Плоскости разъема 10 поршневых полуколец 7 выполнено с продольными пазами 11. 3 ил.The invention relates to the mining industry, namely to shield jacks, and can be used in tunneling shields in the construction of tunnels. The purpose of the invention is to improve the performance by eliminating the ingress of wear products in the friction zone of the sealing elements. The shield jack consists of a housing 1 with inlet channels, a front cover, a rear cover, a rod made with protrusions and annular grooves, piston half rings 7 located in the grooves of the rod, between which are installed sealing cuffs 8. The plane of the connector 10 piston half rings 7 longitudinal grooves 11. 3 Il.
Description
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Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU853999725A SU1539320A1 (en) | 1985-12-27 | 1985-12-27 | Hydraulic jack of shield |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU853999725A SU1539320A1 (en) | 1985-12-27 | 1985-12-27 | Hydraulic jack of shield |
Publications (1)
Publication Number | Publication Date |
---|---|
SU1539320A1 true SU1539320A1 (en) | 1990-01-30 |
Family
ID=21213556
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU853999725A SU1539320A1 (en) | 1985-12-27 | 1985-12-27 | Hydraulic jack of shield |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU1539320A1 (en) |
-
1985
- 1985-12-27 SU SU853999725A patent/SU1539320A1/en active
Non-Patent Citations (1)
Title |
---|
Авторское свидетельство СССР № 1104284. кл. Е 21 D 9/06, 1у84. ( ЩИТОВОЙ ГИДРОДОМКРАТ * |
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