PE20210850A1 - EXPANSION ASSEMBLY - Google Patents

EXPANSION ASSEMBLY

Info

Publication number
PE20210850A1
PE20210850A1 PE2020000696A PE2020000696A PE20210850A1 PE 20210850 A1 PE20210850 A1 PE 20210850A1 PE 2020000696 A PE2020000696 A PE 2020000696A PE 2020000696 A PE2020000696 A PE 2020000696A PE 20210850 A1 PE20210850 A1 PE 20210850A1
Authority
PE
Peru
Prior art keywords
series
serrated
tapered
proximal end
fins
Prior art date
Application number
PE2020000696A
Other languages
Spanish (es)
Inventor
Adrian Berghorst
Original Assignee
Camworth Tech Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=63858230&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=PE20210850(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Camworth Tech Limited filed Critical Camworth Tech Limited
Publication of PE20210850A1 publication Critical patent/PE20210850A1/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
    • E21D21/008—Anchoring or tensioning means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
    • F16B13/04—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front
    • F16B13/06—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve
    • F16B13/063—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve by the use of an expander
    • F16B13/066—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve by the use of an expander fastened by extracting a separate expander-part, actuated by the screw, nail or the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
    • F16B2013/008—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose used for mining purposes

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Dowels (AREA)

Abstract

La invencion proporciona un conjunto de expansion para un perno para roca que incluye: un ancla de expansion que se extiende entre un extremo distal y un extremo proximal, comprendiendo el ancla; una formacion de union; y una pluralidad de aletas de expansion, teniendo cada aleta un cuerpo con una superficie exterior cilindrica formada con una pluralidad de dientes serrados que se extienden de manera circunferencial alrededor de la superficie exterior, y una superficie interior de seccion decreciente lisa que, cuando las aletas se mantienen juntas por la formacion de union, proporcionan un paso de seccion decreciente que es de seccion decreciente hacia dentro desde el extremo distal hasta el extremo proximal; y un taco de seccion decreciente que puede acoplarse a un perno para roca y que se dispone para pasar al interior del paso de seccion decreciente desde el extremo proximal para separar las aletas; en el que cada diente serrado esta definido por una superficie conica y una superficie rebajada que se extiende de manera lateral con relacion al eje del paso; y en el que la pluralidad de dientes serrados incluye una primera serie de dientes serrados que comienzan de manera adyacente al extremo distal, teniendo cada diente serrado de esta serie una superficie rebajada con una anchura en un primer intervalo; y una segunda serie de dientes serrados, teniendo cada diente serrado de esta serie una superficie rebajada que es mas ancha progresivamente que el diente serrado anterior de la segunda serie, esta serie avanza hacia el extremo proximal, con una anchura en un segundo intervalo.The invention provides an expansion assembly for a rock bolt including: an expansion anchor extending between a distal end and a proximal end, the anchor comprising; a union formation; and a plurality of expansion fins, each fin having a body with a cylindrical outer surface formed with a plurality of serrated teeth extending circumferentially around the outer surface, and a smooth tapered inner surface which, when the fins held together by the bonding formation, they provide a tapered pitch that is tapered inward from the distal end to the proximal end; and a tapered plug that can be coupled to a rock bolt and is arranged to pass into the tapered passageway from the proximal end to separate the fins; wherein each serrated tooth is defined by a conical surface and a recessed surface that extends laterally relative to the axis of the pitch; and wherein the plurality of serrated teeth includes a first series of serrated teeth beginning adjacent the distal end, each serrated tooth in this series having a recessed surface with a width in a first interval; and a second series of serrated teeth, each serrated tooth of this series having a recessed surface that is progressively wider than the anterior serrated tooth of the second series, this series advancing towards the proximal end, with a width in a second interval.

PE2020000696A 2017-09-18 2018-09-03 EXPANSION ASSEMBLY PE20210850A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA201706290 2017-09-18
PCT/ZA2018/050051 WO2019056025A1 (en) 2017-09-18 2018-09-03 Expansion assembly

Publications (1)

Publication Number Publication Date
PE20210850A1 true PE20210850A1 (en) 2021-05-12

Family

ID=63858230

Family Applications (1)

Application Number Title Priority Date Filing Date
PE2020000696A PE20210850A1 (en) 2017-09-18 2018-09-03 EXPANSION ASSEMBLY

Country Status (4)

Country Link
EP (1) EP3685017A1 (en)
CL (1) CL2020000711A1 (en)
PE (1) PE20210850A1 (en)
WO (1) WO2019056025A1 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA870345A (en) * 1971-05-11 E. Reusser Hans Bolt anchor and method of making same
CA668317A (en) * 1963-08-06 Hillberg Bror Expansion bolt
KR100808849B1 (en) * 2003-10-27 2008-03-03 아틀라스 코프코 마이 게엠베하 Anchor device with an elastic expansion sleeve

Also Published As

Publication number Publication date
EP3685017A1 (en) 2020-07-29
WO2019056025A1 (en) 2019-03-21
CL2020000711A1 (en) 2020-09-04

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