PL431741A1 - Multi-element strut of mining heading lining - Google Patents

Multi-element strut of mining heading lining

Info

Publication number
PL431741A1
PL431741A1 PL431741A PL43174119A PL431741A1 PL 431741 A1 PL431741 A1 PL 431741A1 PL 431741 A PL431741 A PL 431741A PL 43174119 A PL43174119 A PL 43174119A PL 431741 A1 PL431741 A1 PL 431741A1
Authority
PL
Poland
Prior art keywords
weight
section
polyester
lining
glass
Prior art date
Application number
PL431741A
Other languages
Polish (pl)
Other versions
PL242393B1 (en
Inventor
Sylwester Rajwa
Marek Rotkegel
Łukasz Szot
Dagmara Sobczak
Marcin Broda
Stanisław Prusek
Andrzej Pytlik
Krzysztof Pacześniowski
Jerzy Korol
Jan Szymała
Jacek Mamos
Original Assignee
Główny Instytut Górnictwa
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 Główny Instytut Górnictwa filed Critical Główny Instytut Górnictwa
Priority to PL431741A priority Critical patent/PL242393B1/en
Publication of PL431741A1 publication Critical patent/PL431741A1/en
Publication of PL242393B1 publication Critical patent/PL242393B1/en

Links

Landscapes

  • Mutual Connection Of Rods And Tubes (AREA)
  • Connection Of Plates (AREA)

Abstract

Wieloelementowa rozpora górnicza obudowy chodnikowej mająca łącznik w kształcie wydłużonego elementu o przekroju poprzecznym zamkniętym, mający na końcach ukośne ścięcie dopasowane do bocznego obrysu kształtownika V obudowy, mający przy końcach otwory do osadzania śrub hakowych, mocowany na kształtowniku jarzmami i śrubami hakowymi z nakrętkami i podkładkami charakteryzuje się tym, że łącznik (1) stanowi element z materiału kompozytowego w postaci kompozytu poliestrowo-szklanego zawierającego od 73% do 67% masowych włókna szklanego i od 27% do 33% masowych żywicy poliestrowej, a jarzma (5) stanowią elementy ze stali albo elementy z materiału kompozytowego w postaci kompozytu poliestrowo-szklanego zawierającego od 73% do 67% masowych włókna szklanego i od 27% do 33% masowych żywicy poliestrowej.The multi-element mining strut of the roadway support having a connector in the shape of an elongated element with a closed cross-section, having an oblique cut at the ends, matching the side contour of the V-section of the housing, having holes at the ends for embedding hook bolts, mounted on the section with shackles and hook bolts with nuts and washers is characterized by it is that the fastener (1) is an element of a composite material in the form of a polyester-glass composite containing from 73% to 67% by weight of glass fiber and from 27% to 33% by weight of polyester resin, and the yokes (5) are made of steel or elements made of a composite material in the form of a polyester-glass composite containing from 73% to 67% by weight of glass fiber and from 27% to 33% by weight of polyester resin.

PL431741A 2019-11-07 2019-11-07 Multi-element strut of mining heading lining PL242393B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL431741A PL242393B1 (en) 2019-11-07 2019-11-07 Multi-element strut of mining heading lining

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL431741A PL242393B1 (en) 2019-11-07 2019-11-07 Multi-element strut of mining heading lining

Publications (2)

Publication Number Publication Date
PL431741A1 true PL431741A1 (en) 2020-07-27
PL242393B1 PL242393B1 (en) 2023-02-20

Family

ID=71733914

Family Applications (1)

Application Number Title Priority Date Filing Date
PL431741A PL242393B1 (en) 2019-11-07 2019-11-07 Multi-element strut of mining heading lining

Country Status (1)

Country Link
PL (1) PL242393B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL448861A1 (en) * 2024-06-14 2025-12-15 Przedsiębiorstwo Produkcyjno-Handlowe-Usługowe Witmet Spółka Z Ograniczoną Odpowiedzialnością Mining strut

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL448861A1 (en) * 2024-06-14 2025-12-15 Przedsiębiorstwo Produkcyjno-Handlowe-Usługowe Witmet Spółka Z Ograniczoną Odpowiedzialnością Mining strut

Also Published As

Publication number Publication date
PL242393B1 (en) 2023-02-20

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