US3908389A - Mine roof support - Google Patents

Mine roof support Download PDF

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Publication number
US3908389A
US3908389A US441485*A US44148574A US3908389A US 3908389 A US3908389 A US 3908389A US 44148574 A US44148574 A US 44148574A US 3908389 A US3908389 A US 3908389A
Authority
US
United States
Prior art keywords
support
shield
roof
hinge
face
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
US441485*A
Other languages
English (en)
Inventor
Walter Lubojatsky
Wilhelm Wertelewski
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Becorit Grubenausbau GmbH
Original Assignee
Becorit Grubenausbau GmbH
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 Becorit Grubenausbau GmbH filed Critical Becorit Grubenausbau GmbH
Priority to US05/596,161 priority Critical patent/US3996753A/en
Application granted granted Critical
Publication of US3908389A publication Critical patent/US3908389A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
    • E21D23/0004—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor along the working face
    • E21D23/0034—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor along the working face comprising a goaf shield articulated to a base member
    • E21D23/0043—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor along the working face comprising a goaf shield articulated to a base member and supported by two or more rows of struts parallel to the working face
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
    • E21D23/03—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor having protective means, e.g. shields, for preventing or impeding entry of loose material into the working space or support

Definitions

  • ABSTRACT Av mine roof support for use at a mineral face has a flushing screening shield arranged on its goaf side.
  • the screening shield is in at least two parts one being an upper part and another a lower part, the parts being hingedly Connected together by a hinge means having its axis lying in the longitudinal direction of the mineral face.
  • the upper shield part is hingedly connected to the upper or roof-engaging structure of the support. preferably by a universal joint
  • the lower shield part is hingedly connected to the base or lower part of the support by a hinge having its axis transverse to the longitudinal direction of the face.
  • the screening shield is additionally pivotally movable laterally relatively to the support.
  • the axis of the hinge, connecting the lower screen part to the base or lower part of the screen lies parallel tothe floor of the mine and, whenviewed from the longituidinal direction of the mineral face, is disposed approximately centr-ally of the support.
  • the invention is concerned with a mine'roof support a support frame and more particularly but notessentially to a mine roof support with a multi-part flushing screening shield, the parts of which are mutually'con-' nected throughhinges with hingeaxes'lying inthe'lon gitudinal direction ofth'c face ana the upper and'lower parts of which are connected "with a roof bar'c'ohstruc tion and a'base late cfmdsupwd; wherein'the connectionwith the roof bar ctins'tiuctionat-least i's 'forrned hingedly about a 'hinge axis' lying transversely to the longitiidin aldirection of the face.
  • a mine roof support for use at a mineral face comprising a base member, extensible prop means mounted on '16'we parts of the support, said connecting means providingforadditiona] 'moveme'nt' laterally of the screening shield relatively to the support.
  • a mine :roof support as described in' the preceding paragraph having a multi-part flushing screen shield arranged on the goaf si deof the sup'porhhinge means mutually connecting the parts" of said screening" shield and having their'axes lying in the'lon'gitudinal direction of the face,- -hinge means connecting the upper part of the shield to the 'robf engagingstructure and having its hinge axis lying transversely tothe longitudinal direction of the mineral face, and hinge means connecting the'low'er part ofthe shield with the base member and having a hinge axis which 'he-sipar allel to the floor of the mine and transversely to'the longitudinal direction of the face and w hichg viewed from the longitudinal direction of the face is disposed approximately centrally of the'support, whereby the screening shield is pivotally movable not only in'the directionof length of the support but additi onally laterally relatively thereto.
  • aligning devices are arranged between the props of the support on the one hand and thelbase plate or parts associated with the baseplate on the other hand ,yvhich ,serve for, swivelling of the flushing screen about the hinge between the base plate. and the underpart of the flushing screen.
  • aligning devices suitably have. resilient restoring elements.
  • the aligning devices can also have pressure-medium cylinders which serve for application of the aligning forces.
  • the support illustrated in the drawing has a base plate which is indicated by reference numeral 1. On this base plate 1 are arranged several props 2 which mutually support a roof bar construction 3. The displacement of the props 2 on the base plate 1 and on the roof bar construction 3 is flexible all round.
  • aligning devices 4 are arranged on the base plate 1, which devices serve for alignment of the props 2 relative to the base plate 1. Furthermore the base plate 1 is provided with a ram 5 the reciprocatable piston rod of which acts on a face conveyor 6.
  • the flushing screen 7 consists of two box elements 70 and 7b which are open towards the coal face and embrace with their side walls the rearward propsv 2 of the support on the flanks.
  • the lower box element 70 is connected through hinge pins 8 with the base plate 1.
  • the hinge pins 8 lie on a joint axis which lies parallel to the floor and transversely to the longitudinal direction of the face and seen from the longitudinal direction of the face, is disposed approximately centrally in the support.
  • the upper box element 7b is hingedly connected, universally movable, to the roof bar construction 3 by means of a chain 9 or like connecting means.
  • box elements 7a and 7b are mutually connected by guide rods 10 which hingedly engage on the side wall of the lower box element 7a and in the region of the rear wall of the upper box element 7b.
  • the hinge axes extending through the engagement points of the guide rods 10 lie in the longi tudinal direction of the face.
  • the flushing screen shield is movable towards the support in a plane perpendicular to the floor and in the longitudinal direction of the face. Because of this the flushing screen 7 with its hinges lying in the longitudinal direction of the face no longer prevents inclination of the base plate in the longitudinal direction of the face. Also in movements parallel to the stratification between roof and floor in the longitudinal direction of the face the flushing screen can tilt correspondingly without its hinges being overloaded or that impact of the props on the side walls of the screen elements 7a and 7b needs to be feared.
  • connecting means quadrilateral links or the like, the hinge axes which lie parallel to the floor and transversely to the longitudinal direction of the face. Similar connecting means can also be arranged between the upper screen element 7b and the roof bar construction 3.
  • a mine roof support for use at a mineral face, comprising a base member, extensible prop means mounted on said base member, a roof-engaging structure mounted on said prop means for application thereby to a roof to be supported, a multi-part flushing screen shield including upper and lower parts arranged on the goaf side of the support, first hinge means mutually connecting the parts of said screening shield and having their axes lying in the longitudinal direction of the mineral face, a flexible member connecting the upper part of the shield and the roof-engaging structure and which permits movements of the upper part of the shield about an axis lying transversely to the longitudinal direction of the mineral face, and second hinge means connecting the lower part of the shield with the base member and having a hinge axis which lies transversely to the longitudinal direction of the mineral face, whereby the screening shield is pivotally movable with respect to the support not only toward and away from the mineral face but also parallel thereto.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Lining And Supports For Tunnels (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)
  • Tents Or Canopies (AREA)
  • Error Detection And Correction (AREA)
US441485*A 1973-02-27 1974-01-11 Mine roof support Expired - Lifetime US3908389A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US05/596,161 US3996753A (en) 1973-02-27 1975-07-15 Mine roof support

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2309670A DE2309670C2 (de) 1973-02-27 1973-02-27 Mit einer Versatzabschirmung versehenes Ausbaugestell für den Strebausbau im untertägigen Grubenbetrieb

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US05/596,161 Continuation-In-Part US3996753A (en) 1973-02-27 1975-07-15 Mine roof support

Publications (1)

Publication Number Publication Date
US3908389A true US3908389A (en) 1975-09-30

Family

ID=5873203

Family Applications (1)

Application Number Title Priority Date Filing Date
US441485*A Expired - Lifetime US3908389A (en) 1973-02-27 1974-01-11 Mine roof support

Country Status (7)

Country Link
US (1) US3908389A (xx)
JP (1) JPS547487B2 (xx)
CS (1) CS202030B2 (xx)
DE (1) DE2309670C2 (xx)
GB (1) GB1418432A (xx)
PL (1) PL90941B1 (xx)
ZA (1) ZA74423B (xx)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4041714A (en) * 1974-11-23 1977-08-16 Gullick Dobson Limited Mine roof supports
CN104213929A (zh) * 2014-08-21 2014-12-17 四川省华蓥山煤业股份有限公司李子垭南煤矿 一种大倾角煤层综采支架及支护方法
CN105065046A (zh) * 2015-07-13 2015-11-18 辽宁工程技术大学 一种液压支架邻架间柔性防护装置
CN106499425A (zh) * 2016-11-19 2017-03-15 无锡市洗选设备厂 洗砂机的液压支护组件
CN106761870A (zh) * 2016-11-19 2017-05-31 无锡市洗选设备厂 洗砂机支架组件

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2850073A1 (de) * 1978-11-18 1980-05-29 Fletcher Sutcliffe Wild Ltd Grubenausbau, insbesondere strebausbau
GB2136040B (en) * 1983-03-08 1986-06-11 Dobson Park Ind Pivotal linkage of a mine roof support

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3324664A (en) * 1964-04-03 1967-06-13 Gullick Ltd Resilient biasing device for mine roof support props
US3483705A (en) * 1966-04-29 1969-12-16 Gullick Ltd Mine roof supports
US3830070A (en) * 1971-10-02 1974-08-20 Gewerk Eisenhuette Westfalia Mine roof support assemblies

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3324664A (en) * 1964-04-03 1967-06-13 Gullick Ltd Resilient biasing device for mine roof support props
US3483705A (en) * 1966-04-29 1969-12-16 Gullick Ltd Mine roof supports
US3830070A (en) * 1971-10-02 1974-08-20 Gewerk Eisenhuette Westfalia Mine roof support assemblies

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4041714A (en) * 1974-11-23 1977-08-16 Gullick Dobson Limited Mine roof supports
CN104213929A (zh) * 2014-08-21 2014-12-17 四川省华蓥山煤业股份有限公司李子垭南煤矿 一种大倾角煤层综采支架及支护方法
CN105065046A (zh) * 2015-07-13 2015-11-18 辽宁工程技术大学 一种液压支架邻架间柔性防护装置
CN105065046B (zh) * 2015-07-13 2017-07-18 辽宁工程技术大学 一种液压支架邻架间柔性防护装置
CN106499425A (zh) * 2016-11-19 2017-03-15 无锡市洗选设备厂 洗砂机的液压支护组件
CN106761870A (zh) * 2016-11-19 2017-05-31 无锡市洗选设备厂 洗砂机支架组件

Also Published As

Publication number Publication date
GB1418432A (en) 1975-12-17
CS202030B2 (en) 1980-12-31
ZA74423B (en) 1974-11-27
JPS49117302A (xx) 1974-11-09
JPS547487B2 (xx) 1979-04-07
DE2309670B1 (de) 1974-02-14
PL90941B1 (xx) 1977-02-28
DE2309670A1 (xx) 1974-02-14
DE2309670C2 (de) 1974-09-05

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