US3841706A - Control rod for longwall mining installation - Google Patents

Control rod for longwall mining installation Download PDF

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Publication number
US3841706A
US3841706A US00356559A US35655973A US3841706A US 3841706 A US3841706 A US 3841706A US 00356559 A US00356559 A US 00356559A US 35655973 A US35655973 A US 35655973A US 3841706 A US3841706 A US 3841706A
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US
United States
Prior art keywords
conveyor
installation according
rod
lever
floor
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
US00356559A
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English (en)
Inventor
H Huttenbrauck
B Ostrop
H Poklekowski
M Soliman
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.)
Gewerkschaft Eisenhutte Westfalia GmbH
Original Assignee
Gewerkschaft Eisenhutte Westfalia 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 Gewerkschaft Eisenhutte Westfalia GmbH filed Critical Gewerkschaft Eisenhutte Westfalia GmbH
Application granted granted Critical
Publication of US3841706A publication Critical patent/US3841706A/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
    • E21C—MINING OR QUARRYING
    • E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
    • E21C35/08—Guiding the machine
    • E21C35/12—Guiding the machine along a conveyor for the cut material
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C27/00—Machines which completely free the mineral from the seam
    • E21C27/20—Mineral freed by means not involving slitting
    • E21C27/32—Mineral freed by means not involving slitting by adjustable or non-adjustable planing means with or without loading arrangements

Definitions

  • ABSTRACT A mineral mining installation with a plough guided on a guide member at the mineral face side of a longwall conveyor.
  • the guide member is part of a trough-like frame which receives the conveyor therein.
  • a plurality of rods extend beneath the frame and conveyor. Each rod has a head slidably received between the floor of the working and a part of the guide member; the rods being used to vary the position of the guide member to control the cutting position of the plough.
  • Each rod is pivotably connected to a lever which is in turn pivotably connected to a bracket at a goaf side wall of the frame.
  • Each lever is connected to a shifting ram and the levers and brackets have bores for receiving locking pins. These pins can selectively clamp the levers whereby the rams can be used to shift the installation or displace the rods via the levers to effect the control of the plough.
  • the present invention relates to a mineral mining installation with a mineral mining machine guided for movement along a conveyor and more particularly to such an installation having a control device for adjusting the cutting position of the mining machine.
  • a mineral mining installation comprising a conveyor, guide means for guiding a mineral winning machine for movement along the conveyor and at least one control device for controlling the position of the guide means, said control device having an elongate rod extending beneath the conveyor with a head for slidably moving between the floor of a working and the guide means and means for moving said rod axially to thereby effect raising or lowering of the guide means.
  • the conveyor is supported in a frame which has a floor for receiving the conveyor, a guide member at one side constituting said guide means and a side wall at the side of the frame remote from said guide member.
  • a frame which has a floor for receiving the conveyor, a guide member at one side constituting said guide means and a side wall at the side of the frame remote from said guide member.
  • each ram may be pivoted to a generally upstanding lever which has one end pivoted to one of the control rods and the other end pivoted to a bracket on the side wall of the frame.
  • the lever can then be locked to the bracket, for example by means of a pin inserted into a bore in the bracket or into bores in the bracket and in the lever so that the rams can be used to shift the entire installation.
  • the bracket has stop members which limit its pivotal movement of the associated lever and the lever'can be disposed between the locking pin and one of the stop members of the bracket. In this way shifting can occur with the rods disposed in one of two limiting control positions.
  • the guide member may have an inclined ramp portion at the mineral face and the head of each control rod may be wedge-shaped with faces slidably engageable with the floor of the working and the underside of said ramp portion.
  • a plate can be pivotably connected to the guide member to pivot about an axis extending parallel to the conveyor.
  • the head of each control rod may then have faces slidably engageable with the floor of the working and the underside of a portion of said plate disposed inwardly towards the conveyor from the pivotal axis of the plate.
  • FIGS. 1 to 3 there is shown a mineral mining installation with a scraper chain conveyor 15 disposed alongside a longwall coal face 11.
  • a winning machine in the form of a plough 12, is moved back and forth along the conveyor 15 to cut the coal from the face 11; the coal being transported from the working by the conveyor 15, in known manner.
  • a support frame with a hollow upstandingside wall on the goaf side of the conveyor 15 supports the conveyor 15 and the plough 12.
  • This frame has a support floor l4 extending beneath the conveyor 15 and the channel sections of the conveyor 15 rest on this floor 14.
  • the floor 14 adjoins a guide member 17 which serves to support and guide the plough 12.
  • the frame composed of the side wall 13, the floor l4 and the guide member 17 is thus in the form of a trough into which the conveyor 15 is received.
  • a series of spaced apart shaped bracing beams 16 extend outwardly from the side 13 of the frame and engage on the floor 10 of the working to brace the frame and maintain the side 13 of the frame in an elevated position. These beams 16 may also serve in known manner to guide roof support assemblies not shown in the drawing, during shifting.
  • the plough 12 is driven along the face 11, i.e. along the guide member 17, by means of an endless chain guided in the side wall 13 of the frame. More particularly, the return run of the chain passes through a channel 18 in the wall 13 and the drive run of the chain is guided in a channel disposed above the channel 18.
  • the plough 12 has an arm (not shown) which extends over the conveyor 15. This arm is guided on the wall 13 and drivably connects with the drive run ofthe chain.
  • the guide member 17 has a downwardly inclined ramp portion 19 and the cutting tools of the plough 12 only project by their cutting depth towards the face 11 beyond the end of the portion 19.
  • control devices are provided which are disposed at spaced intervals along the installation.
  • Each device is composed of a rod having a head 21 of wedge-shape with opposite faces 27, 23.
  • a shifting ram 28 has a piston rod which is pivotably connected to a pin 30 attached to the lever 25 and disposed between the pins 24, 26.
  • the cylinder of the ram 28 would normally be connected to a roof support assembly.
  • the bracket 27 and the lever 25 have bores 31, 32 which align with one another when the lever 25 is vertical to receive a locking pin.
  • the levers 25 When it is desired to shift the installation bodily towards the face 11 the levers 25 are connected to the brackets 27 with the locking pins which may be inserted in the bores 31, 32 or in the bores 32, to lock the levers 25 to the brackets 27.
  • the piston rods 29 of the rams 28 are extended to effect the shifting. With the locking pins removed however extension or retraction of any of the piston rods 29 will pivot the associated lever 25 to cause the rod 23 connected therewith to move longitudinally towards or away from the face 11. Such movement of any of the rods 20 will in turn then cause the head 21 thereof to slide between the ramp portion 19 of the guide member 17 and the floor 10 to thereby raise or lower the guide member 17.
  • FIG. 1 depicts the situation where the guide member 17 is in the standard position where the end of the ramp portion 19 of the guide member 17 is just at floor level. In this position, the bores 31, 32 align to receive the locking pins if desired. If during operation the plough 12 tends to cut into the floor 10, as denoted by 10', in FIG. 2, then the plough 12 must 'be guided upwardly. The piston rods of the rams 28 are in this case extended to cause the rods 20 to move in the direction of arrow P in FIG. 2 to thereby raise the guide member 17.
  • the piston rods of the rams 28 are in this case extended to cause the rods 20 to move in the direction of arrow P in FIG. 2 to thereby raise the guide member 17.
  • the locking pins can be inserted in the bores 32 only, in the positions shown in FIGS. 2 and 3, so that each lever 25 is locked between the associated stop member 33 or 34 and the locking pin. Thereby shifting of the installation can take place by extending the piston rods 29 of the rams 28 with the guide member 17 set into a controlling position (FIG. 2 or 3) rather than the standard position (FIG. 1).
  • FIGS. 4 and 5 depict a further embodiment somewhat similar to that shown in FIGS. 1 to 3 and like reference numerals are therefore used to denote the same features.
  • the integral ramp portion 19 of the guide member 17 is replaced by a plate 35 pivoted at about its longitudinal centre to a lower part of the guide member 17 by means of a spindle 36 extending parallel to the face 11.
  • the plate 35 has a portion 35 which engages beneath the floor 14 of the frame and can swivel about the spindle 36 to raise or lower the cutting position of the plough 12.
  • the portion 35' is slidably engageable with the upper face 23 of the head 21 of the control rod 20.
  • the support floor 14 in this construction bears guide pieces 37 which slidably guide and support the rods 20.
  • the plough 12 is shown, as denoted 10, to be cutting into the floor 10 and in order to raise the plough 12 the rods 20 are displaced in the direction of arrow P.
  • the plough 12 is shown to be cutting away from the floor 10 and in this case the rods 20 are displaced in the direction of arrow P to allow the plough 12 to be lowered.
  • a mineral mining installation composed of a conveyor and guide means for guiding a mineral winning machine for movement along the conveyor; the improvement comprising at least one control device for controlling the position of the guide means, said control device having an elongate rod extending beneath the conveyor with a head for slidably engaging and moving between the floor of a working and the guide means, and means for moving said rod axially to thereby effect raising or lowering of the guide means.
  • locking means is in the form of a pin insertable into a bore in the bracket whereby the lever can be disposed between the pin and one of the stop members of the bracket.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Soil Working Implements (AREA)
  • Chain Conveyers (AREA)
  • Milling, Drilling, And Turning Of Wood (AREA)
  • Structure Of Belt Conveyors (AREA)
  • Pusher Or Impeller Conveyors (AREA)
US00356559A 1972-05-02 1973-05-02 Control rod for longwall mining installation Expired - Lifetime US3841706A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722221478 DE2221478A1 (de) 1972-05-02 1972-05-02 Vorrichtung zur einstellung des schnitthorizontes eines hobels

Publications (1)

Publication Number Publication Date
US3841706A true US3841706A (en) 1974-10-15

Family

ID=5843863

Family Applications (1)

Application Number Title Priority Date Filing Date
US00356559A Expired - Lifetime US3841706A (en) 1972-05-02 1973-05-02 Control rod for longwall mining installation

Country Status (10)

Country Link
US (1) US3841706A (fr)
JP (1) JPS554917B2 (fr)
AU (1) AU468961B2 (fr)
CA (1) CA967596A (fr)
CS (1) CS199551B2 (fr)
DE (1) DE2221478A1 (fr)
ES (1) ES411092A1 (fr)
FR (1) FR2182813B3 (fr)
GB (1) GB1419144A (fr)
ZA (1) ZA732636B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4280734A (en) * 1978-12-02 1981-07-28 Bochumer Eisenhuette Heintzmann Gmbh & Co. Arrangement for controlled engagement of the tools of a mining machine with a mine face
US4366989A (en) * 1979-10-18 1983-01-04 Halbach & Braun Coal planer control device

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5136529U (fr) * 1974-09-07 1976-03-18
JPS5270135U (fr) * 1975-11-19 1977-05-25
JPS58180758U (ja) * 1982-05-28 1983-12-02 株式会社ナブコ 液圧制御弁付マスタシリンダ

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3765723A (en) * 1971-02-11 1973-10-16 Gewerk Eisenhuette Westfalia Mineral mining installations

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3765723A (en) * 1971-02-11 1973-10-16 Gewerk Eisenhuette Westfalia Mineral mining installations

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4280734A (en) * 1978-12-02 1981-07-28 Bochumer Eisenhuette Heintzmann Gmbh & Co. Arrangement for controlled engagement of the tools of a mining machine with a mine face
US4366989A (en) * 1979-10-18 1983-01-04 Halbach & Braun Coal planer control device

Also Published As

Publication number Publication date
GB1419144A (en) 1975-12-24
JPS554917B2 (fr) 1980-02-01
DE2221478A1 (de) 1973-11-22
CS199551B2 (en) 1980-07-31
AU468961B2 (en) 1976-01-29
ES411092A1 (es) 1976-01-01
AU5486273A (en) 1974-10-31
CA967596A (en) 1975-05-13
FR2182813A1 (fr) 1973-12-14
ZA732636B (en) 1974-02-27
JPS4922301A (fr) 1974-02-27
FR2182813B3 (fr) 1976-01-23

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