PL61765Y1 - Self-advancing roof supports for mines - Google Patents
Self-advancing roof supports for mines Download PDFInfo
- Publication number
- PL61765Y1 PL61765Y1 PL11286001U PL11286001U PL61765Y1 PL 61765 Y1 PL61765 Y1 PL 61765Y1 PL 11286001 U PL11286001 U PL 11286001U PL 11286001 U PL11286001 U PL 11286001U PL 61765 Y1 PL61765 Y1 PL 61765Y1
- Authority
- PL
- Poland
- Prior art keywords
- shield
- joints
- canopy
- rod joints
- mines
- Prior art date
Links
- 238000005065 mining Methods 0.000 claims description 8
- 230000001681 protective effect Effects 0.000 claims 1
- 238000009412 basement excavation Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Description
Przedmiotem wzoru uzytkowego jest górnicza obudowa zmechanizowana z lemniskatowym ukladem prostowodowym, stosowana w górnictwie podziemnym zwlaszcza przy eksploatacji mineralów systemem zawalowym.Znana jest z polskiego opisu patentowego nr 172482 górnicza obudowa zmechanizowana typu podporowo-oslonowego, wyposazona w stropnice, spagnice i w lemniskatowy uklad prostowodowy, zlozony z oslony i ciegiel przednich oraz tylnych. Dolne konce ciegiel osadzone sa przegubowo w spagnicy zas górne konce przymocowane sa przegubami do oslony. Górny koniec oslony polaczony jest przegubem ze stropnica.Podpornosc obudowy, czyli zdolnosc do przenoszenia obciazen od górotworu zapewniaja hydrauliczne stojaki rozpierane pomiedzy spagnica a stropnica. Do stropnicy i oslony przymocowany jest silownik zastrzalowy regulujacy ich wzajemne polozenie.Proporcje ukladu prostowodowego zostaly dobrane tak, aby odcinek lemniskaty jaki wykresla przemieszczajacy sie w góre i w dól koniec stropnicy byl zblizony do pionowej linii prostej a obciazenia wewnetrzne w obudowie byly zminimalizowane.Taki sam cel ma wzór uzytkowy.Istota wzoru uzytkowego polega na zastosowaniu innych proporcji elementów ukladu prostowodowego. Dlugosci elementów ukladu oznaczone literami C;D;B;E;F maja sie do siebie w przyblizeniu tak, jak liczby kolejno: 9;38;17;32;29 zas kat a wynosi w przyblizeniu 32°. Przy czym: C - oznacza odleglosc pomiedzy przegubami ciegiel w oslonie; D - oznacza odleglosc pomiedzy przegubem laczacym przednie cieglo z oslona a przegubem laczacym stropnice z oslona; B - oznacza odleglosc pomiedzy przegubami ciegiel w spagnicy; E - oznacza odleglosc spomiedzy przegubami ciegla przedniego; F- oznacza odleglosc-2- pomiedzy przegubami ciegla tylnego; a - oznacza kat nachylenia linii przechodzacej przez osie przegubów ciegiel w spagnicy do dolnej plaszczyzny spagnicy.Przez odleglosc pomiedzy przegubami rozumie sie tutaj odleglosc pomiedzy osiami obrotów tych przegubów. Zaklada sie, ze odchylka od wartosci podanej w przyblizeniu nie przekracza 3 %. Wzór uzytkowy zastrzega relacje miedzy wymiarami liczone z uzyciem okreslonego zestawu liczb. Oczywistym jest, ze zastrzezone sa równiez stosunki liczone przy pomocy zestawu liczb proporcjonalnego do podanego w istocie wzoru.Górnicza obudowa o podanych proporcjach ma stosunkowo niskie obciazenia wewnetrzne. Wynika to z ograniczenia do minimum szkodliwego wplywu sily tarcia wystepujacej przy poziomych przemieszczeniach stropnicy. Sily pochodzace od stojaków lub od obciazenia górotworem przenoszone sa w takiej obudowie na uklad prostowodowy w korzystniejszy sposób niz w innych obudowach.Obudowa wedlug wzoru uzytkowego pokazana jest na rysunku w widoku bocznym.Obudowa ma stropnice 1 i spagnice 2 a pomiedzy nimi stojaki 3 i lemniskatowy uklad prostowodowy skladajacy sie z zawalowej oslony 4, przednich ciegiel 5 i tylnych ciegiel 6.Pomiedzy stropnica 1 a oslona 4 zainstalowany jest zastrzalowy silownik 7. Przednie ciegla 5 i tylne ciegla 6 o dlugosciach odpowiednio E i F przymocowane sa do spagnicy 2 w rozstawie B. Linia przechodzaca przez przeguby ciegiel 5 i 6 w spagnicy 2 nachylona jest do dolnej plaszczyzny 8 spagnicy 2 pod katem a. Odleglosc pomiedzy przegubem oslona - stropnica a przegubem oslona - cieglo przednie wynosi D, zas odleglosc pomiedzy przegubami ciegiel 5 i 6 w oslonie 4 wynosi C.W czasie pracy obudowy stojaki 3 rozsuwaja sie lub zsuwaja, odpowiednio do wysokosci wyrobiska, dociskajac stropnice 1 do stropu. Obciazenia stropnicy 1 i oslony 4 odbierane sa przez stojaki 3 oraz uklad prostowodowy i przenoszone na spagnice 2.Obudowa podtrzymuje strop wyrobiska górniczego umozliwiajac prace wydobywcze górnikom, maszynie urabiajacej i przenosnikowi odstawiajacemu urobek. 1.r^=....2..A^:....3 M... 1 1..UriL^r.8 I/Ctt, 9 jfe..112860 PL PLThe subject of the utility model is a mining mechanized support with a lemniscate straight-line system, used in underground mining, especially in the mining of minerals with a caving system. with front and rear covers and rods. The lower ends of the rod are articulated in the skirt and the upper ends are articulated to the cover. The upper end of the casing is connected by a joint with the canopy. The casing strength, i.e. the ability to carry loads from the rock mass, is ensured by hydraulic props stretched between the log and the canopy. A brace actuator is attached to the canopy and the shield, regulating their mutual position. The proportions of the straight-line system were selected so that the section of the lemniscate that moves up and down the end of the canopy was close to the vertical straight line and the internal loads in the housing were minimized. The essence of the utility formula consists in the application of different proportions of the elements of the rectangular circuit. The lengths of the elements of the system marked with the letters C; D; B; E; F are approximate to each other, as the numbers in turn: 9; 38; 17; 32; 29 and the angle a is approximately 32 °. Where: C - means the distance between the joints in the sheath; D - is the distance between the joint connecting the front linkage with the shield and the joint connecting the canopy with the shield; B - means the distance between the bolt joints in the crawler; E - is the distance between the joints of the front rod; F- is the distance-2- between the joints of the rear linkage; a - is the angle of inclination of the line passing through the axes of the joints of the bolt in the joist to the lower plane of the joist. The distance between the joints is understood here as the distance between the axes of rotation of these joints. It is assumed that the deviation from the approximate value does not exceed 3%. The utility model reserves the relations between dimensions calculated with the use of a specific set of numbers. It is obvious that there are also proportional ratios calculated by means of a set of numbers proportional to the given formula. Mining casing with the given proportions has relatively low internal loads. This is due to the minimization of the harmful effects of the frictional force occurring at the horizontal displacements of the canopy. The forces originating from the stands or from the rock mass load are transferred in such a casing to the rectangular system in a more advantageous way than in other casings. The casing according to the utility model is shown in the drawing in the side view. A rectangular system consisting of a folded cover 4, front rods 5 and rear rods 6. Between the canopy 1 and the cover 4, a strut cylinder 7 is installed. The line passing through the joints 5 and 6 in the skirt 2 is inclined to the lower plane 8 of the skirt 2 at the angle a. is C. During the operation of the lining, the stands 3 move apart or slide together, corresponding to the height of the excavation, pressing the canopies 1 to the ceiling. The loads on the canopy 1 and shields 4 are picked up by the stands 3 and the straight-line system and transferred to the spagnets 2. The housing supports the roof of the mining excavation, enabling mining works, the mining machine and the conveyor for delivering the spoil. 1.r ^ = .... 2..A ^: .... 3 M ... 1 1..UriL ^ r. 8 I / Ctt, 9 jfe..112860 PL EN
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL11286001U PL61765Y1 (en) | 2001-12-21 | 2001-12-21 | Self-advancing roof supports for mines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL11286001U PL61765Y1 (en) | 2001-12-21 | 2001-12-21 | Self-advancing roof supports for mines |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| PL112860U1 PL112860U1 (en) | 2003-06-30 |
| PL61765Y1 true PL61765Y1 (en) | 2005-12-30 |
Family
ID=29775233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PL11286001U PL61765Y1 (en) | 2001-12-21 | 2001-12-21 | Self-advancing roof supports for mines |
Country Status (1)
| Country | Link |
|---|---|
| PL (1) | PL61765Y1 (en) |
-
2001
- 2001-12-21 PL PL11286001U patent/PL61765Y1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| PL112860U1 (en) | 2003-06-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPU | Decisions on the lapse of rights of protection of utility model |
Effective date: 20061221 |