PL63759Y1

PL63759Y1 - Mining welded metal sheet mesh, chain type PL PL

Info

Publication number: PL63759Y1
Application number: PL11563005U
Authority: PL
Inventors: Krzysztof Nagadowski; Adelajda Nagadowska; Ewa Nagadowska; Joanna Nagadowska
Original assignee: Adelajda Nagadowska; Ewa Nagadowska; Joanna Nagadowska; Krzysztof Nagadowski
Priority date: 2005-08-22
Filing date: 2005-08-22
Publication date: 2008-05-30
Also published as: PL115630U1

Description

Opis wzoru Przedmiotem wzoru u zytkowego jest górnicza zgrzewana siatka ok ladzinowa typu lancuchowe- go stosowana do opinki obudowy wyrobisk korytarzowych jako zabezpieczenie przed obrywaj acymi lub osuwaj acymi si e bry lami w egla, kamienia rud lub innych kopalin. Siatki ok ladzinowe lancuchowe zbudowane w postaci kratownicy z wzajemnie po laczonych przy pomocy zgrzeiny poprzecznych i pod lu znych pr etów s a zak ladane na odrzwia obudowy i laczone ze sob a zagi eciami pod lu znych pr etów tworz ac lancuch (ci ag). Znane s a z polskiej normy PN-G-15050 górnicze zgrzewane la ncuchowe siatki ok ladzinowe. Siatki te stanowi a kratownice dzi eki zgrzaniu pr etów pod lu znych z pr etami poprzecznymi. Ko nce pr e- tów podlu znych zale znie od odmiany i przeznaczenia siatki ok ladzinowej maj a ró zny kszta lt w postaci haków, zaczepów lub pó lp etli. Siatka ok ladzinowa typu la ncuchowego posiada dwa zewn etrzne pr ety pod lu zne wygi ete w jednym ko ncu w p laszczy znie prostopad lej do p laszczyzny siatki w formie haka. Przeciwleg la kraw ed z siatki ma poprzeczny pr et zgrzany z pr etami pod lu znymi do laczenia z siatk a s asiedni a w czasie monta zu ci agu siatek. Znana jest równie z siatka ok ladzinowa z polskiego zg loszenia patentowego Nr P-352448. Jej budowa charakteryzuje si e tym, ze ko nce pr etów pod lu znych s a zagi ete w haki w kszta lcie litery „U" lezace w p laszczy znie prostopad lej do p laszczyzny siatki i odwrotnie ukierunkowane na poszczegól- nych ko ncach. Skrajny poprzeczny pr et mocowany jest do wzd lu znych pr etów od strony wyrobiska. Inne pr ety poprzeczne s a mocowane w ró znych miejscach pr etów pod lu znych od strony ociosu lub od strony wyrobiska. Pr ety poprzeczne maj a zró znicowan a srednic e. Opisane rozwi azania górniczych siatek ok ladzinowych typu lancuchowego charakteryzuj a si e niedogodno sciami polegaj acymi na utrudnieniu ich monta zu w uk ladzie pod lu znym, to jest przy two- rzeniu ci agu siatek. Ponadto ich konstrukcja zmniejsza skutecznosc os lony ociosu i stropu wyrobiska wskutek braku elementów trwale lacz acych ci agi siatek mi edzy sob a w uk ladzie poprzecznym, na przyk lad przy os lonie ociosu wyrobiska w uk ladzie pionowym. Siatka ok ladzinowa zbudowana z pr etów pod lu znych i poprzecznych w postaci kratownicy, ma- jacej ko nce pr etów podlu znych zagi ete w odwrotnym kierunku w p laszczy znie prostopad lej do p lasz- czyzny siatki w kszta lcie litery „U" posiada wed lug wzoru u zytkowego prze swit haka pr eta pod luznego wi ekszy od srednicy pr eta poprzecznego zaczepowego. Natomiast co najmniej dwa srodkowe pr ety poprzeczne maj a d lugo sc wieksz a od pozosta lych pr etów poprzecznych. Cz es c tych pr etów wystaj aca poza gabaryt siatki ma d lugo sc nie mniejsz a ni z 80 mm i nie wi eksz a ni z 150 mm. Wa znymi korzystnymi cechami siatki jest u latwienie jej monta zu w uk ladzie pod lu znym przy tworzeniu ci agu siatek. Natomiast wyd luzone pr ety poprzeczne, po ich zagi eciu w czasie monta zu i po laczeniu z s asiedni a siatk a zapewniaj a trwa le zlaczenie lancuchów siatek w uk ladzie poprzecz- nym, co zapewnia wi eksz a skuteczno sc os laniania ociosów i stropów wyrobisk. Górnicza zgrzewana siatka ok ladzinowa typu lancuchowego wed lug wzoru u zytkowego uwi- doczniona jest na rysunku, na którym fig. 1 przedstawia siatk e w widoku z góry przed jej zabudowa- niem, a fig. 2 - siatk e w widoku z boku. Górnicza zgrzewana siatka ok ladzinowa typu la ncuchowego zbudowana w postaci kratownicy, majaca ko nce pr etów pod luznych zagi ete w odwrotnym kierunku w p laszczy znie prostopad lej do p laszczyzny siatki w kszta lcie litery „U" wed lug wzoru u zytkowego charakteryzuje si e tym, ze prze swit 2 haka 3 pr eta pod lu znego 1 jest wi ekszy od srednicy pr eta poprzecznego zaczepowego 4. Natomiast co najmniej dwa srodkowe pr ety poprzeczne 5 maj a d lugo sc wi eksz a od pozosta lych pr etów po- przecznych. Cz esc ich wystaj aca 6 poza gabaryt siatki ma d lugo sc nie mniejsz a ni z 80 mm i nie wi ek- sz a ni z 150 mm. PL PL PL PL PL PLDescription of the design: The subject of the utility model is a welded chain-type mining lining mesh used to encase the lining of roadway workings as protection against falling or sliding lumps of coal, stone, ore, or other minerals. Chain lining meshes, constructed in the form of a grid of interconnected transverse and longitudinal rods by means of welds, are placed on the support frame and connected by bends of the longitudinal rods, forming a chain (continuity). Welded chain-type mining lining meshes are known from the Polish standard PN-G-15050. These meshes constitute a grid by welding the longitudinal rods to the transverse rods. Depending on the type and purpose of the facing mesh, the ends of the longitudinal rods have different shapes, such as hooks, catches, or half-loops. Chain-type facing mesh has two outer longitudinal rods bent at one end in a plane perpendicular to the mesh plane, forming a hook. The opposite edge of the mesh has a transverse rod welded to the longitudinal rods for connection to the adjacent mesh during the assembly of a chain of meshes. This facing mesh is also known from Polish patent application No. P-352448. Its structure is characterized by the fact that the ends of the longitudinal bars are bent into U-shaped hooks lying in a plane perpendicular to the plane of the mesh and directed in the opposite direction at the individual ends. The outermost transverse bar is attached to the longitudinal bars from the side of the excavation. Other transverse bars are attached in different places on the longitudinal bars from the sidewall or from the side of the excavation. The transverse bars have different diameters. The described solutions for chain-type mining lining meshes are characterized by the inconvenience of making their assembly in a longitudinal arrangement, i.e. when creating a string of meshes. Furthermore, their design reduces the effectiveness of the sidewall and excavation roof shield due to the lack of elements permanently connecting the mesh strings to each other in a transverse arrangement, for example, in the vertical sidewall shield. A lining mesh constructed of longitudinal and transverse bars in the form of a grid, with the ends of the longitudinal bars bent in the opposite direction in a plane perpendicular to the plane of the U-shaped mesh, has, according to the utility model, a hook clearance of the longitudinal bar greater than the diameter of the transverse hook bar. However, at least two central transverse bars have a length greater than the other transverse bars. The portion of these rods extending beyond the mesh dimensions has a length of no less than 80 mm and no more than 150 mm. Important advantages of the mesh include its ease of installation in a longitudinal configuration when creating a mesh chain. Furthermore, the extended transverse rods, when bent during installation and connected to the adjacent mesh, ensure a permanent connection of the mesh chains in a transverse configuration, which ensures greater effectiveness in shielding the sides and roofs of the excavations. The welded chain-type mining lining mesh according to the utility model is shown in the drawing, where Fig. 1 shows the mesh in a top view before its installation, and Fig. 2 - the mesh in a side view. The welded chain-type mining lining mesh constructed in the form of a grid, having the ends of the longitudinal bars bent in the opposite direction in a plane perpendicular to the plane of the U-shaped mesh according to the utility model is characterized in that the clearance 2 of the hook 3 of the longitudinal bar 1 is greater than the diameter of the transverse hook bar 4. However, at least two central transverse bars 5 have a length greater than the remaining transverse bars. The part of them protruding beyond the net dimensions has a length of no less than 80 mm and no more than 150 mm. PL PL PL PL PL PL

Claims

2 PL 63 759 Υ1 Description of the model The subject of the utility model is a mining chain-type welded lining mesh used for lashing the lining of corridor workings as a protection against tearing or sliding lumps of coal, ore stone or other minerals. Cladding chain meshes constructed in the form of a lattice of transverse and longitudinal bars connected by a weld are put on the casing's doorway and connected with each other by the bends of the longitudinal bars to form a chain (string). Welded cladding chain meshes are known from the Polish standard PN-G-15050. These meshes are trusses thanks to welding the longitudinal bars with the transverse bars. The ends of the longitudinal bars, depending on the type and purpose of the mesh, have a different shape in the form of hooks, catches or half-loops. Chain-type cladding mesh has two outer longitudinal bars bent at one end in a plane perpendicular to the mesh plane in the form of a hook. The opposite edge of the mesh has a transverse bar welded to the longitudinal bars for joining with the adjacent mesh during assembly of the mesh string. There is also a covering mesh from the Polish patent application No. P-352448. Its structure is characterized by the fact that the ends of the longitudinal bars are bent into U-shaped hooks; lying in a plane perpendicular to the plane of the mesh and vice versa at individual ends. The extreme transverse bar is attached to the longitudinal bars from the side of the excavation. Other transverse bars are attached at different locations of the longitudinal bars on the side of the side or on the excavation site. The cross bars have a different diameter. The described solutions of mining chain-type cladding meshes are characterized by the disadvantages of making their assembly in a longitudinal configuration difficult, i.e. when creating a string of meshes. In addition, their design reduces the effectiveness of the side wall and roof cover of the excavation due to the lack of elements permanently connecting the lines of meshes with each other in a transverse arrangement, for example with the cover of the excavation side wall in a vertical arrangement. Cladding mesh composed of longitudinal and transverse bars in the form of a truss, with the ends of the longitudinal bars bent in the opposite direction in a plane perpendicular to the plane of the mesh in a "U" shape; According to the utility model, it has a clearance of the longitudinal bar hook greater than the diameter of the transverse catch bar. In contrast, at least two of the middle transverse bars are longer than the other transverse bars. The part of these bars protruding beyond the mesh size has a length of not less than 80 mm and not more than 150 mm. An important advantageous feature of the mesh is that it is easier to assemble in a longitudinal configuration when creating a string of mesh. On the other hand, the elongated transverse bars, after they are bent during assembly and joined with the adjacent mesh, ensure a permanent connection of mesh chains in a transverse arrangement, which ensures greater effectiveness of shielding the sides and ceilings of excavations. A mining chain-type welded cladding mesh according to a utility model is shown in the drawing, in which Fig. 1 shows the mesh in a top view before its installation, and Fig. 2 shows the mesh in a side view. Mining chain-type welded cladding mesh constructed in the form of a truss, having the ends of the longitudinal bars bent in the opposite direction in a plane perpendicular to the mesh plane in the shape of the "U"; according to a utility model, it is characterized in that the clearance 2 of the hook 3 of the longitudinal bar i is greater than the diameter of the cross bar 4. In contrast, at least two central transverse bars 5 have a length greater than the other transverse bars. The part 6 extending beyond the mesh size has a length of not less than 80 mm and not more than 150 mm. Protective caveat Mining chain-type welded cladding mesh constructed in the form of a truss having the ends of the longitudinal bars bent in the opposite direction in a plane perpendicular to the mesh plane in the "U" shape, characterized in that the clearance (2) of the hook (3) of the longitudinal bar (i) is greater than the diameter of the transverse catch bar (4), while at least two middle transverse bars (5) are longer than the other transverse bars, and the part protruding (6) beyond the mesh size is not less than 80 mm long and not greater than than 150 mm.