FIELD: mining, particularly for rock block separation from rock massif, to create roads and tunnels in rock, to produce row crystalline material, demolish old foundations and building structures.
SUBSTANCE: device comprises power cylinder with piston, rod with spacing wedge-like end passing through power cylinder so that it may slide in longitudinal direction. Device also has collet with tongues and engaging wedges connected to free tongue ends. The collet is put on rod and connected to power cylinder. Rod is secured to linkage and attached to piston. Spacing end thereof is made as truncated cone expanding towards free end of the rod.
EFFECT: increased device efficiency due to possibility to separate edges of crack to be formed enough for highly-viscous block separation from rock massif, simplified structure and provision of rock breakage through small blastholes.
5 cl, 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
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| 0 |
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SU1670121A1 | |
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| APPARATUS FOR BREAKING ROCK | 0 |
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|
RU2182968C1 |
