FIELD: designing of mine hydraulic props operating under conditions of dynamic loads; applicable in mining, manufacture of powered supports and their operation, and hydraulic props of individual support. SUBSTANCE: method includes installation of members compensating of roof displacement, extension of hydraulic proper for transmission of dynamic loads to it. Dynamic load is applied through loose material enclosed in cylindrical plastic shells contacting, for instance, guard shield and base of powered support. Highly rising deformation of shell walls is formed by pushing apart force above plungers located on ends of hydraulic prop and arranged in cylindrical plastic shell. EFFECT: higher operating reliability of hydraulic prop under conditions of multiple dynamic actions due to deformation of cylindrical plastic shell coming in contact with members of transmission of dynamic loads. 3 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| HYDRAULIC PROP WITH PROTECTION FROM DYNAMIC LOADS | 1999 |
|
RU2150005C1 |
| HYDRAULIC PROP | 2001 |
|
RU2188952C1 |
| HYDRAULIC PROP | 2001 |
|
RU2188951C1 |
| PROCESS OF FILLING OF WORKED-OUT SPACE WHILE DEVELOPING KIMBERLITE PIPE BY POWERED MINING COMPLEX IN RISING STRATUM AND GEAR TO CONDUCT FILLING OPERATION | 1998 |
|
RU2164297C2 |
| ACTIVATED PLOW FOR MINING OF KIMBERLITE ORES UNDER PROTECTION OF POWERED SUPPORT | 2001 |
|
RU2182966C1 |
| HYDRAULIC PROP | 1993 |
|
RU2066764C1 |
| HYDRAULIC PROP | 2001 |
|
RU2188950C1 |
| ROOF BOLTING | 2001 |
|
RU2182972C1 |
| PROCESS OF LAYER-BY-LAYER DEVELOPMENT OF KIMBERLITE PIPE IN ASCENDING ORDER WITH BACKFILL AND POWERED COMPLEX FOR METHOD EMBODIMENT | 2001 |
|
RU2203420C2 |
| ROOF BOLTING AND PROCESS OF ITS ERECTION | 2000 |
|
RU2169842C1 |
