US3653492A - Scraper chain conveyors - Google Patents

Scraper chain conveyors Download PDF

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Publication number
US3653492A
US3653492A US104616A US3653492DA US3653492A US 3653492 A US3653492 A US 3653492A US 104616 A US104616 A US 104616A US 3653492D A US3653492D A US 3653492DA US 3653492 A US3653492 A US 3653492A
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US
United States
Prior art keywords
chains
scraper
recess
bracket
end portions
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
US104616A
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English (en)
Inventor
Helmut Temme
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
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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
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Publication of US3653492A publication Critical patent/US3653492A/en
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Expired - Lifetime legal-status Critical Current

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    • 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
    • B65G19/00—Conveyors comprising an impeller or a series of impellers carried by an endless traction element and arranged to move articles or materials over a supporting surface or underlying material, e.g. endless scraper conveyors
    • B65G19/18—Details
    • B65G19/22—Impellers, e.g. push-plates, scrapers; Guiding means therefor
    • 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
    • B65G19/00—Conveyors comprising an impeller or a series of impellers carried by an endless traction element and arranged to move articles or materials over a supporting surface or underlying material, e.g. endless scraper conveyors
    • B65G19/04—Conveyors comprising an impeller or a series of impellers carried by an endless traction element and arranged to move articles or materials over a supporting surface or underlying material, e.g. endless scraper conveyors for moving bulk material in open troughs or channels
    • B65G19/06—Conveyors comprising an impeller or a series of impellers carried by an endless traction element and arranged to move articles or materials over a supporting surface or underlying material, e.g. endless scraper conveyors for moving bulk material in open troughs or channels the impellers being scrapers similar in size and shape to the cross-section of the trough or channel
    • B65G19/10—Conveyors comprising an impeller or a series of impellers carried by an endless traction element and arranged to move articles or materials over a supporting surface or underlying material, e.g. endless scraper conveyors for moving bulk material in open troughs or channels the impellers being scrapers similar in size and shape to the cross-section of the trough or channel and attached to a pair of belts, ropes or chains

Definitions

  • a known scraper chain conveyor has two chains running side-by-side at the center of the channel sections and interconnected with scraper elements. Each scraper element is provided with transverse] recesses which are open towards the center of the conveyor and which receive the eyelets at the ends of a locking bracket, secured in position by means of connecting bolts. This arrangement is generally found to be disadvantageous. For example, the actual connection of the scraper elements to the brackets is inferior and the chains are apt to become displaced from the desired position.
  • conveyed material is liable to get jammed between the heads of the connecting bolts and the floor of the conveyor.
  • the scraper elements tend to be lifted off the floor and can engage against the lower surface of the upper flange of the side walls of the channel sections thus resulting in undue wear.
  • a general object of this invention is to provide an improved assembly for use in scraper chain conveyors.
  • a further object is to produce a simple, inexpensive and reliable conveyor construction.
  • an assembly for use in scraper chain conveyors comprising two oval-link chains interconnected at intervals by means of scraper elements, each scraper element having a recess through which the chains extend, the recess being bounded at the upper side by a central portion formed with shaped compartments receiving horizontally-disposed links of the chains and lugs which extend into said horizontally-disposed links, and brackets each detachably connected to one of the scraper elements to extend beneath the chains.
  • a scraperchain conveyor comprising a plurality of channel sections joined end-to-end, two oval-link chains disposed at the centre of said channel sections and interconnected at intervals with scraper elements, each scraper element having a recess through which the chains extend, the recess being bounded at the upper side by a central portion formed with shaped compartments receiving horizontally-disposed links of the chains and lugs which extend into said horizontally-disposed links, and brackets each detachably connected to one of the scraper elements to extend beneath the chains.
  • each of the scraper elements has apertured webs at the outer sides of the recess, and the associated bracket has apertured end portions engageable with the webs so that connecting bolts can extend through the aligned apertures of said webs and end portions.
  • Eachend portion of the bracket can conveniently have a recessed part which can receive the head of one of said connecting bolts in such a manner as to prevent the bolt from rotating.
  • the depth of the recessed part can then correspond to the depth of the head of the associated connecting bolt.
  • the end portions of the brackets are preferably outwardly offset relative to the remaining central portion of the bracket to face the intended conveying direction.
  • each scraper element can be separated by a narrow web cut away at its ends to allow the passage of a double sprocket wheel for driving the chains.
  • This narrow web allows the chains to be positioned accurately and very close together and in turn the double sprocket wheel can engage accurately between the adjacent vertical chain links and support itself on the horizontal chain links.
  • Each scraper element preferably tapers in cross-section away from the conveying direction. This also prevents the scraper elements from being lifted off the floor of the conveyor.
  • FIG. 1 is a plan view of part of an assembly made in accordance with the invention.
  • FIG. 2 is an enlarged sectional view taken along the line A-B of FIG. 1, with the floor of the associated conveyor channel section being additionally indicated;
  • FIG. 3 is a side view of one of the scraper elements of the assembly the view being taken in the direction opposite to that of the general conveying direction;
  • FIG. 4 is a side view of one of the brackets of the assembly, the view also being taken in the direction opposite to that of the general conveying direction;
  • FIG. 5 is a plan view of the bracket shown in FIG. 4.
  • each scraper element 1 has a recess 3 beneath its central portion into which projects two depending lugs 4 and 4 which engage in horizontal links 5 and 5 of the chains 7.
  • the underside of the central portion of the scraper element 1 is also provided with shaped compartments 22 and 22 which receive the horizontal chain links 5 and 5' and which thereby determine the distance a between the chains 7. Between the compartments 22, 22 a narrow web 24 is provided which has cut-away ends 23 and 23' which accommodate the passage of double sprocket wheel (not shown) used for driving the chains 7.
  • the scraper element 1 has webs 9 and 9 provided with apertures 13.
  • the associated bracket 6 has end portions 11, 11 which can engage the webs 9, 9'.
  • the portions 11, 11' of the bracket 6 have apertures 14 which can be aligned with the apertures 13 to receive connecting bolts 12 and 12' as can be seen in FIG. 2.
  • the portions 11,11 are provided, at the faces 15 with recesses 16 serving to accommodate the heads 17 of the bolts 12, 12'.
  • the depth t' (FIG. 5) of the recesses 16 approximately corresponds to the width h of the heads 17 (FIG. 2) and the diameter of each recess 16 is such that it prevents the head 17 received thereby from rotating.
  • the end portions 11 and 1 l of the bracket 6 are offset from the main central portion of the bracket 6 and disposed forwardly therefrom relative to the conveying direction denoted by the arrow 10 in FIG. 5.
  • the lower edges 18 of the portions 11, 11 form scraping edges which slide along the conveyor floor 8 as shown in FIG. 2.
  • each scraper element 1 tapers in cross-section from the front portion 21 towards the rear at least over part of its length, so that a lower surface 19 forms the free angle A with the upper face of the conveyor channel flow 8 while an upper surface 20 forms a free angle B 1.
  • an assembly for use in a scraper chain conveyor comprising two oval-link chains interconnected by means of scraper elements and locking brackets; the improvement comprising providing shaped compartments in the portion of each scraper element disposed over a central recess through which the chains extend to receive horizontal links of the chains, providing webs in the scraper elements and end portions in the brackets, the webs and end portions being apertured to receive connecting bolts, and providing recessed parts in the end portions to accommodate the heads of the bolts and prevent rotation thereof.
  • An assembly for use in scraper chain conveyors said assembly comprising:
  • each scraper element connected to said chains and spaced apart along said chains, each scraper element having a recess through which the chains extend, the recess being bounded at its upper side by a central portion formed withshaped compartments receiving horizontal links of the chains and formed with lugs extending into said horizontal links, and;
  • each bracket being detachably connected to one of the scraper elements by means of connecting bolts so as to extend beneath the chains.
  • each of the scraper elements has apertured webs at the outer sides of the recess, and the associated bracket has apertured end portions engageable with the webs so that the connecting bolts can extend through the aligned apertures of said webs and end portions.
  • each end portion of the bracket has a recessed part which can receive the head of one of the connecting bolts, the depth of each of the recessed parts being substantially equal to the depth of the head of the connecting bolt and the width of each of the recessed parts being such as to prevent rotation of said bolt.
  • a scraper chain conveyor comprising:
  • each scraper element connected to the chains and spaced apart along said chains, each scraper element having a recess through which the chains extend, the recess being bounded at the upper side by a central portion formed with shaped compartments receiving horizontal links of the chains and formed with lugs extending into the horizontal links and the recess being bounded at its lateral ends by apertured webs; and
  • locking brackets detachably connected to said scraper elements by means of connecting bolts each locking bracket extending beneath the chains and having apertured end portions mating with the webs of the associated scraper element, the end portions being outwardly offset in the conveying direction relative to the remainder of the bracket and having recessed parts receiving the heads of said connecting bolts.
  • each bracket has a lower surface which slids along the floor of the channel sections.
  • each scraper element tapers in cross-section in the direction away from the conveying direction.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chain Conveyers (AREA)
  • Pusher Or Impeller Conveyors (AREA)
US104616A 1970-06-27 1971-01-07 Scraper chain conveyors Expired - Lifetime US3653492A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2031874A DE2031874C3 (de) 1970-06-27 1970-06-27 Kratzer für Kettenkratzförderer mit zwei durchgehenden Rundgliederketten

Publications (1)

Publication Number Publication Date
US3653492A true US3653492A (en) 1972-04-04

Family

ID=5775142

Family Applications (1)

Application Number Title Priority Date Filing Date
US104616A Expired - Lifetime US3653492A (en) 1970-06-27 1971-01-07 Scraper chain conveyors

Country Status (7)

Country Link
US (1) US3653492A (cg-RX-API-DMAC10.html)
JP (1) JPS4821475B1 (cg-RX-API-DMAC10.html)
BE (1) BE757552A (cg-RX-API-DMAC10.html)
DE (1) DE2031874C3 (cg-RX-API-DMAC10.html)
ES (1) ES384558A1 (cg-RX-API-DMAC10.html)
FR (1) FR2186409B1 (cg-RX-API-DMAC10.html)
GB (1) GB1322569A (cg-RX-API-DMAC10.html)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3869039A (en) * 1972-05-18 1975-03-04 Gewerk Eisenhuette Westfalia Scraper assemblies for scraper chain conveyors
US3907097A (en) * 1972-03-07 1975-09-23 Harold R Ziegelmeyer Pusher lugs for conveyors
US4027770A (en) * 1974-09-02 1977-06-07 Rellico Engineering Limited Conveyor chain assemblies having scraper bars attached at intervals to a chain or chains
US4079833A (en) * 1976-03-31 1978-03-21 Joy Manufacturing Company Conveyor chain flight assembly
US4265359A (en) * 1978-02-24 1981-05-05 Gewerkschaft Eisenhutte Westfalia Scraper assembly for a scraper chain conveyor
US5069328A (en) * 1989-06-10 1991-12-03 Klockner-Becorit Gmbh Double central chain belt assembly
US5249664A (en) * 1991-05-15 1993-10-05 Westfalia Becorit Industrietechnik, Gmbh Scraper units for scraper-chain assemblies
US10889446B2 (en) * 2018-08-22 2021-01-12 Flexicon Corporation Tubular cable conveyor slug with integrated connector

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA827935B (en) * 1981-11-02 1983-10-26 Parsons Controls Ltd Scraper chain conveyors
DE3312323A1 (de) * 1983-04-06 1984-10-11 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Kratzer fuer einen mit langstrangketten ausgeruesteten kettenkratzfoerderer
DE3705914A1 (de) * 1987-02-13 1988-08-25 Komotzki Michael Fa Befestigungsvorrichtung fuer den mitnehmer von kettenfoerderern
RU2203208C2 (ru) * 2001-01-24 2003-04-27 Открытое акционерное общество "Подмосковный научно-исследовательский и проектно-конструкторский угольный институт" Цепь скребковая
CN109649942A (zh) * 2018-07-12 2019-04-19 宁波乐惠国际工程装备股份有限公司 一种用于刮板输送机的刮板片和刮板输送机

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3587831A (en) * 1967-12-20 1971-06-28 Gewerk Eisenhuette Westfalia Scraper-flight conveyor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3587831A (en) * 1967-12-20 1971-06-28 Gewerk Eisenhuette Westfalia Scraper-flight conveyor

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3907097A (en) * 1972-03-07 1975-09-23 Harold R Ziegelmeyer Pusher lugs for conveyors
US3869039A (en) * 1972-05-18 1975-03-04 Gewerk Eisenhuette Westfalia Scraper assemblies for scraper chain conveyors
US4027770A (en) * 1974-09-02 1977-06-07 Rellico Engineering Limited Conveyor chain assemblies having scraper bars attached at intervals to a chain or chains
US4079833A (en) * 1976-03-31 1978-03-21 Joy Manufacturing Company Conveyor chain flight assembly
US4265359A (en) * 1978-02-24 1981-05-05 Gewerkschaft Eisenhutte Westfalia Scraper assembly for a scraper chain conveyor
US5069328A (en) * 1989-06-10 1991-12-03 Klockner-Becorit Gmbh Double central chain belt assembly
US5249664A (en) * 1991-05-15 1993-10-05 Westfalia Becorit Industrietechnik, Gmbh Scraper units for scraper-chain assemblies
ES2067361A2 (es) * 1991-05-15 1995-03-16 Westfalia Becorit Ind Tech Arrastrador para transportadores rascadores de cadenas.
US10889446B2 (en) * 2018-08-22 2021-01-12 Flexicon Corporation Tubular cable conveyor slug with integrated connector

Also Published As

Publication number Publication date
FR2186409A1 (cg-RX-API-DMAC10.html) 1974-01-11
JPS4821475B1 (cg-RX-API-DMAC10.html) 1973-06-28
DE2031874B2 (de) 1978-12-14
DE2031874A1 (de) 1972-01-05
DE2031874C3 (de) 1979-08-16
ES384558A1 (es) 1973-07-16
BE757552A (fr) 1971-03-16
FR2186409B1 (cg-RX-API-DMAC10.html) 1974-09-20
GB1322569A (en) 1973-07-04

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