PL448861A1 - Mining strut - Google Patents

Mining strut

Info

Publication number
PL448861A1
PL448861A1 PL448861A PL44886124A PL448861A1 PL 448861 A1 PL448861 A1 PL 448861A1 PL 448861 A PL448861 A PL 448861A PL 44886124 A PL44886124 A PL 44886124A PL 448861 A1 PL448861 A1 PL 448861A1
Authority
PL
Poland
Prior art keywords
metallurgical
rod
strut
nut
washer
Prior art date
Application number
PL448861A
Other languages
Polish (pl)
Inventor
Tadeusz Dziedzic
Mateusz Fryszak
Original Assignee
Przedsiębiorstwo Produkcyjno-Handlowe-Usługowe Witmet Spółka Z Ograniczoną Odpowiedzialnością
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
Application filed by Przedsiębiorstwo Produkcyjno-Handlowe-Usługowe Witmet Spółka Z Ograniczoną Odpowiedzialnością filed Critical Przedsiębiorstwo Produkcyjno-Handlowe-Usługowe Witmet Spółka Z Ograniczoną Odpowiedzialnością
Priority to PL448861A priority Critical patent/PL448861A1/en
Publication of PL448861A1 publication Critical patent/PL448861A1/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/14—Lining predominantly with metal
    • E21D11/28—Longitudinal struts, i.e. longitudinal connections between adjoining arches
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/14—Lining predominantly with metal
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/14—Lining predominantly with metal
    • E21D11/18—Arch members ; Network made of arch members ; Ring elements; Polygon elements; Polygon elements inside arches
    • E21D11/22—Clamps or other yieldable means for interconnecting adjacent arch members either rigidly, or allowing arch member parts to slide when subjected to excessive pressure

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Food-Manufacturing Devices (AREA)

Abstract

Zgłoszenie rozwiązuje zagadnienie opracowania nowego typu rozpory do łączenia odrzwi górniczych wykonanych z kształtownika korytkowego odwrotnie giętych. Rozporę stanowią dwa równolegle usytuowane pręty hutnicze, zewnętrzny (1) i wewnętrzny (2), oddalone od siebie co najmniej o grubość (g) kołnierza (4) kształtownika (5) korytkowego typu V, połączone ze sobą łącznikami (3), przy czym oba końce (6) pręta zewnętrznego (1) wykonane są z pręta okrągłego i nagwintowane, wyposażone w podkładkę kształtową (7) i nakrętkę (8). Pręt hutniczy zewnętrzny (1) jest dłuższy z każdej strony od pręta hutniczego wewnętrznego (2) o co najmniej, wysokość nakrętki podkładki, którego długość (L) jest równa odległości powierzchni (1) bocznych łączonych kształtowników (5) w miejscu przylegania.The application addresses the issue of developing a new type of strut for connecting mining arches made of reverse-bent trough sections. The strut comprises two parallel metallurgical rods: an outer one (1) and an inner one (2), spaced apart by at least the thickness (g) of the flange (4) of the V-shaped trough section (5), connected by connectors (3), wherein both ends (6) of the outer rod (1) are made of round bar and threaded, equipped with a shaped washer (7) and a nut (8). The outer metallurgical rod (1) is longer on each side than the inner metallurgical rod (2) by at least the height of the washer nut, the length (L) of which is equal to the distance between the side surfaces (1) of the connected sections (5) at the point of contact.

PL448861A 2024-06-14 2024-06-14 Mining strut PL448861A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL448861A PL448861A1 (en) 2024-06-14 2024-06-14 Mining strut

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL448861A PL448861A1 (en) 2024-06-14 2024-06-14 Mining strut

Publications (1)

Publication Number Publication Date
PL448861A1 true PL448861A1 (en) 2025-12-15

Family

ID=98005381

Family Applications (1)

Application Number Title Priority Date Filing Date
PL448861A PL448861A1 (en) 2024-06-14 2024-06-14 Mining strut

Country Status (1)

Country Link
PL (1) PL448861A1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL420094A1 (en) * 2016-12-31 2017-10-23 Główny Instytut Górnictwa Mining sprag
PL431741A1 (en) * 2019-11-07 2020-07-27 Główny Instytut Górnictwa Multi-element strut of mining heading lining

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL420094A1 (en) * 2016-12-31 2017-10-23 Główny Instytut Górnictwa Mining sprag
PL431741A1 (en) * 2019-11-07 2020-07-27 Główny Instytut Górnictwa Multi-element strut of mining heading lining

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