SU607994A1 - Powered roof support section - Google Patents
Powered roof support sectionInfo
- Publication number
- SU607994A1 SU607994A1 SU762372442A SU2372442A SU607994A1 SU 607994 A1 SU607994 A1 SU 607994A1 SU 762372442 A SU762372442 A SU 762372442A SU 2372442 A SU2372442 A SU 2372442A SU 607994 A1 SU607994 A1 SU 607994A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- overlap
- parts
- screw
- roof
- downhole
- Prior art date
Links
Landscapes
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Description
1one
Изобретение относитс к области подземной добычи угл , в частности к креплению очистных забоев угольных шахт.The invention relates to the field of underground coal mining, in particular to the fixing of the cleaning faces of coal mines.
Известна секци механизированной крепи, включающа основание, забойные и посадочные гидростойки, механизм передвижени секйии и конвейера и перекрытие, состо щее из двух частей, шарнирно соединенных между собой flj.The mechanized roof support section is known, comprising a base, a downhole and landing hydraulic legs, a mechanism for moving a section and a conveyor, and an overlap consisting of two parts hinged to each other flj.
При эксплуатации крепей на пластах с неустойчивой кровлей, склонной к образованию участков с вывалами и значительными неровност ми в ней, происходит поворот частей перекрыти относительно друг друга в направлении к почве пласта. При.этом площадь контактировани перекрыти с Кровлей уменьщаетс , что резко ухудшает услови поддержани кровли в призабойном пространстве. Кроме того, поворот забойной части перекрыти к почве пласта затрудн ет проход комбайна под секци ми крепи.During the operation of supports on seams with an unstable roof, prone to the formation of plots with dumps and significant irregularities in it, the parts rotate overlap relative to each other in the direction to the soil of the reservoir. At the same time, the area of contact with the Roof is reduced, which drastically worsens the conditions for maintaining the roof in the bottom hole. In addition, the rotation of the downhole portion to the soil of the formation makes it difficult for the combine to pass under the support sections.
Наиболее близким техническим решением вл етс секци механизированной крепи,,включающа основание, забойные и посадочные стойки, перекрытие, состо щее из забойной The closest technical solution is the mechanized support section, which includes the base, the bottomhole and landing posts, the overlap consisting of the bottomhole support
и завальной частей, шарнирио соединенных между собой, и ограничитель поворота частей перекрыти в виде рессоры, прикрепленной при помс аи ст жек к коромыслу, установленному с возможностью поворота относительно шарнира, соедин ющего части перекрыти 2J.and a damming part, a hinge interconnected, and a rotation limiter of the overlapping parts in the form of a spring attached at the same point to the rocker arm mounted rotatably with respect to the hinge connecting the overlapping part 2J.
Ограничитель поворота, коитактиру своими рессорными консол ми с забойной и завальной част ми перекрыти , частично ограничивает их поворот к почве пласта. Однако Ь случае вывала кровли над секцией в зоне шарнира, в момент распора гидростоек, части перекрыти поворачиваютс в шарнире, в результате резко повышаетс нагрузка на консоли рессоры, увеличиваетс их прогиб, по вл етс остаточна деформаци и неизбежна поломка листов рессоры, что вызывает Дополнительную опасность дл обслуживающеho персонала.The rotation limiter, which combined its spring consoles with downhole and overlapping parts, partially restricts their rotation to the soil of the stratum. However, in the case of a roof fallout over a section in the hinge zone, at the time of hydraulic girders, parts of the overlap rotate in the hinge, as a result, the load on the spring arms increases dramatically, their deflection increases, residual deformation and inevitable breakage of the spring leaves occur, which causes Additional Hazard for service personnel.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU762372442A SU607994A1 (en) | 1976-06-09 | 1976-06-09 | Powered roof support section |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU762372442A SU607994A1 (en) | 1976-06-09 | 1976-06-09 | Powered roof support section |
Publications (1)
Publication Number | Publication Date |
---|---|
SU607994A1 true SU607994A1 (en) | 1978-05-25 |
Family
ID=20665602
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU762372442A SU607994A1 (en) | 1976-06-09 | 1976-06-09 | Powered roof support section |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU607994A1 (en) |
-
1976
- 1976-06-09 SU SU762372442A patent/SU607994A1/en active
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