SU1550977A3 - Metal-rubber anchor - Google Patents
Metal-rubber anchorInfo
- Publication number
- SU1550977A3 SU1550977A3 SU4398218/03A SU4398218A SU1550977A3 SU 1550977 A3 SU1550977 A3 SU 1550977A3 SU 4398218/03 A SU4398218/03 A SU 4398218/03A SU 4398218 A SU4398218 A SU 4398218A SU 1550977 A3 SU1550977 A3 SU 1550977A3
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- bushing
- stem
- boss
- bolt
- anchor
- Prior art date
Links
Landscapes
- Bolts, Nuts, And Washers (AREA)
- Dowels (AREA)
Abstract
FIELD: mining industry. SUBSTANCE: metal-rubber anchor has stem 1, locking bolt 2 carrying fitted-on flexible bushing 3 with thrust washer 4 and split distance rings 5 at ends. Stem 1 is connected to bolt 2 by means of threaded sleeve. The latter is made in form of nut 6 and pair of bent plates 7. Plates 7, with one ends, are diametrically attached to nut 6, and with the other ends, to stem 1. Made in base of flexible bushing 3 is outer longitudinal boss 8. Made inside bushing 3, under boss 8, is recess corresponding to boss. Deep part of bolt 2 has cut 10 and is welded into flexible bushing 3 together with distance ring 5. Distance rings 5 are circular in cross-section. Assembled anchor is introduced in drilled hole up to stop of roof of supporting plate 12. In this case, boss 8 is pressed in recess 9. Due to its flexibility, bushing 3 is expanded in hole. Then, stem 1 is rotated to screw nut 6 on bolt 2 and compresses bushing 3 through thrust bushing 14 and washer 4. As a result, bushing 3 is radially expanded and pressed to hole walls. At the same time, distance rings expand and close gap between hole wall and thrusting head 13 and washer 4. As bushing 3 expands, stem 1 is tensioned. EFFECT: higher operate reliability and adaptability to manufacture of anchor. 2 cl, 6 dwg
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU4398218/03A SU1550977A3 (en) | 1988-02-18 | 1988-02-18 | Metal-rubber anchor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU4398218/03A SU1550977A3 (en) | 1988-02-18 | 1988-02-18 | Metal-rubber anchor |
Publications (1)
Publication Number | Publication Date |
---|---|
SU1550977A3 true SU1550977A3 (en) | 1994-03-30 |
Family
ID=60529005
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU4398218/03A SU1550977A3 (en) | 1988-02-18 | 1988-02-18 | Metal-rubber anchor |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU1550977A3 (en) |
-
1988
- 1988-02-18 SU SU4398218/03A patent/SU1550977A3/en active
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