SU1571267A1 - Expanding roof bolt for support mine working - Google Patents
Expanding roof bolt for support mine working Download PDFInfo
- Publication number
- SU1571267A1 SU1571267A1 SU884485509A SU4485509A SU1571267A1 SU 1571267 A1 SU1571267 A1 SU 1571267A1 SU 884485509 A SU884485509 A SU 884485509A SU 4485509 A SU4485509 A SU 4485509A SU 1571267 A1 SU1571267 A1 SU 1571267A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- protrusions
- rod
- sleeve
- anchor
- thread
- Prior art date
Links
Landscapes
- Piles And Underground Anchors (AREA)
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
Abstract
Изобретение относитс к горной промышленности и может быть использовано дл закреплени трещиноватых пород в горных выработках. Цель - повышение несущей способности анкера. Дл этого анкер содержит конусную штангу 1 с резьбой и распорный замок 2, выполненный в виде разрезной фигурной втулки 3 с внутренней конической резьбой и продольными разрезами. Цилиндрическа часть втулки 3 имеет гладкую наружную поверхность. Наружна коническа часть снабжена выступами 4, имеющими в поперечном сечении трапециевидную форму. При ввинчивании штанги 1 разрезы расход тс , втулка 3 и выступы 4 внедр ютс в породу стенок шпура. 2 ил.The invention relates to the mining industry and can be used to consolidate fractured rocks in mine workings. The goal is to increase the carrying capacity of the anchor. For this, the anchor contains a tapered rod 1 with a thread and an expansion lock 2, made in the form of a split shaped sleeve 3 with an internal tapered thread and longitudinal cuts. The cylindrical part of the sleeve 3 has a smooth outer surface. The outer conic part is provided with protrusions 4 having a trapezoidal shape in cross section. When screwing the rod 1, the cuts are consumed, the sleeve 3 and the protrusions 4 are inserted into the rock of the hole walls. 2 Il.
Description
4four
Фае. 2Faye. 2
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU884485509A SU1571267A1 (en) | 1988-09-20 | 1988-09-20 | Expanding roof bolt for support mine working |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU884485509A SU1571267A1 (en) | 1988-09-20 | 1988-09-20 | Expanding roof bolt for support mine working |
Publications (1)
Publication Number | Publication Date |
---|---|
SU1571267A1 true SU1571267A1 (en) | 1990-06-15 |
Family
ID=21400489
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU884485509A SU1571267A1 (en) | 1988-09-20 | 1988-09-20 | Expanding roof bolt for support mine working |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU1571267A1 (en) |
-
1988
- 1988-09-20 SU SU884485509A patent/SU1571267A1/en active
Non-Patent Citations (1)
Title |
---|
Авторское свидетельство СССР № 1361341, кл. Е 21 D 21/00, 1987. Авторское свидетельство СССР № 953217, кл. Е 21 D 21/00, 1979. * |
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