US3664486A - Lifting prop for a transfer conveyor - Google Patents

Lifting prop for a transfer conveyor Download PDF

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Publication number
US3664486A
US3664486A US74772A US3664486DA US3664486A US 3664486 A US3664486 A US 3664486A US 74772 A US74772 A US 74772A US 3664486D A US3664486D A US 3664486DA US 3664486 A US3664486 A US 3664486A
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US
United States
Prior art keywords
cylinder
mantle
hollow
hollow extension
cylindrical
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
US74772A
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English (en)
Inventor
Vladimir Mares
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.)
CESKOSLOVENSKY URANOVY PRUMYSL OBOROVY PODNIK
Cs Uranovy Prumysl Koncern
Original Assignee
Cs Uranovy Prumysl Koncern
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 Cs Uranovy Prumysl Koncern filed Critical Cs Uranovy Prumysl Koncern
Application granted granted Critical
Publication of US3664486A publication Critical patent/US3664486A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G67/00—Loading or unloading vehicles
    • B65G67/02—Loading or unloading land vehicles
    • B65G67/04—Loading land vehicles
    • B65G67/10—Loading land vehicles using conveyors covering the whole length of vehicle trains
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G41/00—Supporting frames or bases for conveyors as a whole, e.g. transportable conveyor frames
    • B65G41/001—Supporting frames or bases for conveyors as a whole, e.g. transportable conveyor frames with the conveyor adjustably mounted on the supporting frame or base
    • B65G41/003—Supporting frames or bases for conveyors as a whole, e.g. transportable conveyor frames with the conveyor adjustably mounted on the supporting frame or base mounted for linear movement only
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G41/00—Supporting frames or bases for conveyors as a whole, e.g. transportable conveyor frames
    • B65G41/007—Means for moving conveyor frames and control arrangements therefor
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F13/00—Transport specially adapted to underground conditions
    • E21F13/02—Transport of mined mineral in galleries
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F13/00—Transport specially adapted to underground conditions
    • E21F13/08—Shifting conveyors or other transport devices from one location at the working face to another

Definitions

  • Object of this invention is to provide a lifting prop or support for a transfer conveyer, enabling its displacement in the course of underground work in gangways and tunnels.
  • Transfer conveyers composed of individual sections, connected by joints are advantageously used for this purpose.
  • Transfer conveyers for underground work which are displaced behind a loading device and suspended from a track, fixed to the ceiling of a gangway, are already known.
  • the transfer conveyer is supported by a gantry carrier, moving on auxiliary lateral rails.
  • a common drawback of these conveyers is the necessity to build an auxiliary track, which is generally dismantled with the advance of mining.
  • Another drawback is the difficulty in advancing the conveyor in curved gangways and frequently it is even impossible to use similar conveyors for lack of vertical or transverse space.
  • a lifting prop is also provided according to this invention which comprises a cylindrical external mantle, housing a slidable cylinder with a hollow extension.
  • the hollow extension is guided by the lower section of said cylindrical mantle and is provided with a number of notches.
  • a piston with a hollow piston rod is slidably located in said cylinder, said hollow piston rod being provided at its lower extennity with a supporting disc.
  • the arrangement according to this invention enables the simple displacement of transfer conveyors of relatively large size in limited spaces in mines and in other places of limited space, particularly along stretches such as curves.
  • the proposed lifting props are simple in construction and therefore also reliable in operation and their main advantage is their ability to lift or to maintain individual sections of transfer conveyers in a horizontal position without regard to the uneven condition of floor of the gangway, to which they compensate automatically.
  • FIG. 1 and FIG. 2 represent an elevation view of a transfer conveyer ready for displacement on mine cars
  • FIG. 3 is a cross section perpendicularly to the longitudinal axis along the line IIIlIl, indicated in FIG. 1,
  • FIG. 4 is a longitudinal axial cross section through a lifting prop and FIG. 5 is a cross section similar to that of FIG. 3 with the difference that the lifting props are raised to their working position.
  • the mobile transfer conveyer with a lifting prop composed of several sections, of which two are seen) comprises supporting frames 1, mutually connected by joints 2.
  • An endles band 3 is supported in the frames 1 by guiding, driving and return rollers at both extremities.
  • the loading end of the conveyor band 3 is inclined and provided with a supply hopper 4, while the opposite, or discharge end, is supplied with a discharge hopper 5.
  • the mobile transfer conveyer is provided with lifting props, connected by pairs of struts la to the frame 1 at each side of a section.
  • Each lifiing prop is composed of a cylindrical mantle.
  • the bottom cover having for example the shape of a supporting plate 7a, is provided with a central opening, allowing the passage of the lower section 7 of the cylindrical mantle 6.
  • the section 7 has a smaller diameter than said mantle, and is fixed at its top to the supporting plate 7a.
  • the struts Ia are fixed with one end at to the supporting plate 7a, with their other end to the frame 1 of the endless band 1.
  • a cylinder 8 (FIG. 4) is located vertically slidably within the cylindrical mantle 6, and has fixedly connected thereto an extending narrow hollow extension 9, provided with notches 9a.
  • a piston 10 having a hollow piston rod 11 is located inside the cylinder 8, the piston rod 11 passing through the hollow extension 9 and outwardly through the lower section 7.
  • a supporting disc 12 is fixed to the lower extremity of the piston rod 11.
  • An air tight packing cuff or seal 15 is inserted between the cylinder 8 and between the internal wall of the cylindrical mantle 6, and a packing seal cuff 16 is inserted between the hollow extension 9 and the upper edge of the lower section 7 of the cylindrical mantle.
  • Supply ducts 17, 18 for some form of pressure medium, for instance pressurized air, serving simultaneously for venting, are provided on the cylindrical mantle 6, the internal space of the cylinder 8 being connected by way of an opening 19 in the upper cover 8a with the internal space of the cylindrical mantle 6.
  • a pressure vessel 23 including comprising a stop pin 20, fixed to a piston 21, is connected to the lower section 7 of the cylindrical mantle 6.
  • a spring 22 is inserted between the free face of the piston 21 and the cover of the pressure vessel 23.
  • a supply flange or duct 24 for some form pressure medium is provided in the mantle of the pressure vessel 23 within the working space of the piston 21.
  • the stop 20 is adapted to engage the notches 9a of the hollow extension 9.
  • the whole transfer conveyer is first loaded on cars 26, for instance on mine cars, whereby its whole weight is transmitted by brackets 25 fixed to the cylindrical mantle 6, resting on the upper edges of the bodies of the mine cars 26 (FIG. 3).
  • the inclined from section of the conveyer band 3 with the supply hopper 4 is permanently resting on the auxiliary car 27 (FIG.
  • the lifting props have in their rest position and also after transport to the required place a normal disposition where their cylinder 8 and piston 10 are in the upper extreme position, which position is secured by the stop 20, pressed by the spring 22 against the notches 9a of the hollow extension 9.
  • Afterward release of the stop 20 by introducing pressure medium over the supply flange 24 into the pressure vessel 23, causes the cylinder 8 to drop automatically due to gravity, until the supporting disc 12 touches the floor of the gangway.
  • any compensation required for the possibly uneven surface of the gangway is automatically obtained (FIG. 5).
  • the supply of pressure medium is subsequently stopped and the pressure vessel 23 vented, so that the stop 20 resumes due to the pressure of spring 22 again engagement with the notches 9a of the hollow extension 9.
  • Pressure medium is thereafter supplied by way of the supply flange 18 to the cylindrical mantle 6.
  • the pressurized medium enters through the opening 19 into the cylinder 8 above the piston 10.
  • the cylindrical mantle 6 thus is raised, raising simultaneously for a constant distance both pairs of lifting props and thus also the whole transfer conveyer.
  • Both the transfer conveyers drop simultaneously towards the cars 26 which are placed under the conveyer, until the brackets (FIG. 3) are touching the upper edges of the bodies of said cars 26.
  • the transfer conveyor is displaced to the next required site and here again adjusted to its working position.
  • a lifting prop for a transfer conveyer enabling its displacement in gangways and tunnels, comprising in combination:
  • a cylinder with a hollow extension arranged coaxially with said cylindrical mantle, and axially slidably within said mantle within two extreme positions, the cylinder engaging into the upper section, the hollow extension guided by the lower section of said cylindrical mantle,
  • a lifting prop as set forth in claim 1, the means for locking the relative posifion of the hollow extension of the cylinder and of one section of the cylindrical mantle comprising a pressure vessel with a spring loaded piston, fixed laterally to the lower section of the mantle, the hollow extension of the cylinder provided with a number of notches at different height, the piston actuating a stop, adapted to engage into said notches, means for supplying pressure medium into the space under said piston, to act against the spring force and for venting said space.
  • a lifting prop as set forth in claim 1 comprising brackets to rest on cars used to transfer the whole conveyor and to take over the material discharged by the conveyor.
  • a lifting prop as set forth in claim 1 comprising a spring passing freely through the hollow piston rod and suspended with one end at the cover of the cylinder, with the other end at the supporting disc.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Intermediate Stations On Conveyors (AREA)
  • Loading Or Unloading Of Vehicles (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
US74772A 1969-10-09 1970-09-23 Lifting prop for a transfer conveyor Expired - Lifetime US3664486A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS675469 1969-10-09

Publications (1)

Publication Number Publication Date
US3664486A true US3664486A (en) 1972-05-23

Family

ID=5415270

Family Applications (1)

Application Number Title Priority Date Filing Date
US74772A Expired - Lifetime US3664486A (en) 1969-10-09 1970-09-23 Lifting prop for a transfer conveyor

Country Status (7)

Country Link
US (1) US3664486A (es)
CA (1) CA924289A (es)
DE (1) DE2046910A1 (es)
ES (1) ES384184A1 (es)
FR (1) FR2065143A5 (es)
GB (1) GB1273453A (es)
SE (1) SE349280B (es)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4120390A (en) * 1977-01-03 1978-10-17 Montgomery Warren G Crossover dump and conveyor advancer
US4502390A (en) * 1982-03-03 1985-03-05 Conoco Inc. Self-elevating acute turn guide hose hauler vehicle
US20060043718A1 (en) * 2004-09-01 2006-03-02 Mayer Martin G Vertical outrigger leg
CN102865098A (zh) * 2012-10-10 2013-01-09 新汶矿业集团有限责任公司鄂庄煤矿 井下运输皮带机迈步式迁移机械手及其工作方法
US10668901B2 (en) 2016-12-30 2020-06-02 Joy Global Underground Mining Llc Service jack system

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3114525A1 (de) * 1981-04-10 1982-11-04 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Hydraulischer presszylinder fuer den rohrvorpressbetrieb u.dgl.
CN107323470B (zh) * 2017-06-15 2023-04-18 山西煤炭进出口集团科技发展有限公司 一种步进式自移动滑靴

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4120390A (en) * 1977-01-03 1978-10-17 Montgomery Warren G Crossover dump and conveyor advancer
US4502390A (en) * 1982-03-03 1985-03-05 Conoco Inc. Self-elevating acute turn guide hose hauler vehicle
US20060043718A1 (en) * 2004-09-01 2006-03-02 Mayer Martin G Vertical outrigger leg
CN102865098A (zh) * 2012-10-10 2013-01-09 新汶矿业集团有限责任公司鄂庄煤矿 井下运输皮带机迈步式迁移机械手及其工作方法
US10668901B2 (en) 2016-12-30 2020-06-02 Joy Global Underground Mining Llc Service jack system

Also Published As

Publication number Publication date
CA924289A (en) 1973-04-10
GB1273453A (en) 1972-05-10
SE349280B (es) 1972-09-25
DE2046910A1 (de) 1971-04-15
ES384184A1 (es) 1973-01-01
FR2065143A5 (es) 1971-07-23

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