EP1415716A2 - Kegelbrecher mit Schmiereinrichtung - Google Patents

Kegelbrecher mit Schmiereinrichtung Download PDF

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Publication number
EP1415716A2
EP1415716A2 EP03256907A EP03256907A EP1415716A2 EP 1415716 A2 EP1415716 A2 EP 1415716A2 EP 03256907 A EP03256907 A EP 03256907A EP 03256907 A EP03256907 A EP 03256907A EP 1415716 A2 EP1415716 A2 EP 1415716A2
Authority
EP
European Patent Office
Prior art keywords
shaft
head
eccentric
cone crusher
seal
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.)
Withdrawn
Application number
EP03256907A
Other languages
English (en)
French (fr)
Other versions
EP1415716A3 (de
Inventor
Tim Jarvis
Leo Helminem
Peter William Thomas Laver
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP1415716A2 publication Critical patent/EP1415716A2/de
Publication of EP1415716A3 publication Critical patent/EP1415716A3/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C2/00—Crushing or disintegrating by gyratory or cone crushers

Definitions

  • This invention relates to an improved cone crusher, by which is meant a machine which crushes or pulverises rock or other particulate solids to reduce the particle size. Crushing is effected between a rotating conical head or mantle and a fixed conical shroud, the rotating mantle being influenced by a rotating, off-centre weight or flywheel which imparts an oscillating movement to the mantle which alters the gap between the mantle and the shroud.
  • Cone crushers of this kind have been well known for many years but have a short working life because of the enormous frictional forces to which their components are subjected.
  • the bearing between the shaft on which the mantle is mounted and the off-centre flywheel rapidly bums out because the flywheel rotates faster than the shaft when the mantle is decelerated by a workload and at the same time the oscillation generated by the flywheel is applied to the shaft over this bearing.
  • Other problems associated with known cone crushers include the ingress of dust and small particles of the material being crushed through bearings of the mantle or its seating leading to failure of the bearings. In view of the high cost of this apparatus it is highly desirable that its working life should be extended.
  • a principal object of the present invention is to address the problems associated with known cone crushers.
  • a cone crusher comprising a mantle fixed to and rotatable with a head shaft about which an eccentric weight or unbalanced mass is relatively rotatable, the head shaft and eccentric being commonly driven by a friction drive which permits a degree of angular movement of the rotational axis of the head shaft relative to the rotational axis of the friction drive, wherein means is provided for supplying a lubricating fluid under pressure from the friction drive to the interior of the head shaft, the head shaft having at least one radial bore which communicates its interior with the peripheral surface of the head shaft at a position where the shaft is surrounded by the eccentric.
  • said radial bore opens to the peripheral surface of the shaft at a position intermediate the axial end surfaces of the eccentric.
  • the friction drive comprises a drive shaft and a universal coupling interposed between the drive shaft on the one hand and the head shaft and eccentric on the other hand, the drive shaft having drillings whereby oil under pressure is admitted to an axial bore through the universal coupling whereby oil is conveyed to the interior of the head shaft.
  • a cone crusher comprising a head fixed to and rotatable with a shaft about which an eccentric flywheel is relatively rotatable, the shaft and flywheel being commonly driven by a friction drive which permits a degree of angular movement of the rotational axes of the shaft and flywheel relative to the rotational axis of the friction drive, wherein an annular seal is provided between an annular undersurface of the head and a mainframe of the cone crusher, the seal comprising an oil-impregnated plastics material which is spring urged into contact with the mantle whereby contact of the seal with the mantle is not lost due to oscillation of the head relative to the mainframe and whereby wear of the seal is compensated by the spring means.
  • the head has an inwardly and downwardly directed underskirt which is contacted by a similarly inclined surface of the seal, the seal being under the influence of circumferentially distributed compression springs located in respective blind bores in the mainframe.
  • the cone crusher illustrated has a main frame 10 in which a drive shaft 21 is rotatable by a pulley 22 driven by an electric motor (not shown).
  • a support shaft 18 provides a universal coupling between the drive shaft 21 and a tubular shaft 11 on which is mounted an eccentric weight or unbalanced mass 13.
  • a head shaft 28 Within the tubular shaft 11 is mounted a head shaft 28, also friction driven by the support shaft 18 but rotatable relative to the tubular shaft 11.
  • Fixed to the top of the head shaft 28 is a generally conical head 27 the underside of which is machined to a spherical radius and seated on a spherical bearing 110.
  • the spherical bearing 110 is supported by a socket 29 which is in turn bolted to the main frame 10.
  • a frusto conical mantle liner 9 Overlying the head 27 is a frusto conical mantle liner 9. Confronting this over an adjustable gap is a concave liner 8 fixed relative to the frame 10 and at the centre of which is the outlet of a hopper 111 whereby material to be crushed is introduced between the liners 8 and 9. It will be noted that the gap between these liners tapers downwardly so that material being crushed is subjected to progressively increasing crushing forces as it passes downwardly under gravity.
  • Lubricating oil under pressure is introduced at two points 30 and 31. Oil entering the inlet 30 passes through the socket 29 and spherical bearing 110, emerging between the opposed surfaces of the bearing 110 and the head 27. Oil falling from the radially inner and radially outer ends of the spherical bearing 110 falls through the frame 10 to exit through a drain hole 32.
  • Oil entering the inlet 31 passes to an annular chamber 33 communicating with drillings 34 in the drive shaft 21.
  • the shaft coupling 18 has a coaxial bore 35 through which oil from the drillings 34 passes to a chamber 36 in the bottom of the head shaft 28 above an upper bearing 37 of the shaft coupling. From thence the oil passes through a coaxial blind bore 38 in the head shaft 28 and through a radial bore 39, emerging between the head shaft 28 and the tubular shaft 11 intermediate the axial ends of the latter. Oil thus lubricating the bearing between the head shaft 28 and the eccentric weight or unbalanced mass 13 may emerge from the top of the tubular shaft 11, where it will fall through the frame 10 to exit through the outlet 32.
  • Both the upper and lower bearings of the shaft coupling 18 are also lubricated by oil from the inlet 31.
  • the lower bearing 40 of the shaft coupling 18 is cup-shaped with an annular flange 41 which acts on a thrust bearing 42. Oil from the chamber 33 can also pass upwardly around the outside of the cup-shaped bearing 40, emerging at the top of a bush 43 to fall through the frame 10 to the outlet 32.
  • Oil also passes downwardly from the chamber 33 to lubricate the drive shaft 21.
  • An annular recess 50 in the underside of the drive shaft 21 communicates with a cross drilling 51 which in turn communicates with a rotary coupling 52 , the inlet end of which extends through the bearing of the pulley 22.
  • Oil discharged from the drive shaft 21 exits through the rotary coupling 52, which is connected to the same reservoir tank (not shown) as the outlet 32 of the frame.
  • Figure 2 shows part of the head 27 on a larger scale.
  • the head 27 Near to its periphery the head 27 is formed with an inwardly and downwardly directed underskirt 44 which, as the head rotates and oscillates, is in rubbing contact with a similarly inclined surface of an annular seal 45 of an oil-impregnated plastics material.
  • the seal 45 is under the influence of a series of compression springs circumferentially distributed around the frame 10, one of which is indicated at 46.
  • the springs act on the seal 45 through respective hollow plungers 47, which serve to maintain the seal 45 in contact with the skirt 44 irrespective of angular movement of the head 27 and also compensate for wear of the seal.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)
EP03256907A 2002-10-31 2003-10-31 Kegelbrecher mit Schmiereinrichtung Withdrawn EP1415716A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0225332 2002-10-31
GB0225332A GB0225332D0 (en) 2002-10-31 2002-10-31 Cone crusher

Publications (2)

Publication Number Publication Date
EP1415716A2 true EP1415716A2 (de) 2004-05-06
EP1415716A3 EP1415716A3 (de) 2004-06-30

Family

ID=9946916

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03256907A Withdrawn EP1415716A3 (de) 2002-10-31 2003-10-31 Kegelbrecher mit Schmiereinrichtung

Country Status (2)

Country Link
EP (1) EP1415716A3 (de)
GB (1) GB0225332D0 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2493917C2 (ru) * 2011-10-18 2013-09-27 ООО "Техномаш" Конусная вибрационная дробилка
CN104437725A (zh) * 2014-12-31 2015-03-25 浙江浙矿重工股份有限公司 一种液压式圆锥破碎机
CN108144682A (zh) * 2017-12-22 2018-06-12 张建勋 一种破碎机的齿轮箱结构

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1077947B (de) * 1956-08-18 1960-03-17 Kloeckner Humboldt Deutz Ag Schmiereinrichtung mit im Kreislauf gefuehrtem Druckoel fuer Kreiselbrecher mit Exzenterbuechsenantrieb
FR1520265A (fr) * 1966-04-25 1968-04-05 Allis Chalmers Mfg Co Broyeur giratoire perfectionné
FR2530492A1 (fr) * 1982-07-26 1984-01-27 Litton Systems Inc Ensemble de paliers pour broyeur a cone

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1077947B (de) * 1956-08-18 1960-03-17 Kloeckner Humboldt Deutz Ag Schmiereinrichtung mit im Kreislauf gefuehrtem Druckoel fuer Kreiselbrecher mit Exzenterbuechsenantrieb
FR1520265A (fr) * 1966-04-25 1968-04-05 Allis Chalmers Mfg Co Broyeur giratoire perfectionné
FR2530492A1 (fr) * 1982-07-26 1984-01-27 Litton Systems Inc Ensemble de paliers pour broyeur a cone

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2493917C2 (ru) * 2011-10-18 2013-09-27 ООО "Техномаш" Конусная вибрационная дробилка
CN104437725A (zh) * 2014-12-31 2015-03-25 浙江浙矿重工股份有限公司 一种液压式圆锥破碎机
CN108144682A (zh) * 2017-12-22 2018-06-12 张建勋 一种破碎机的齿轮箱结构

Also Published As

Publication number Publication date
GB0225332D0 (en) 2002-12-11
EP1415716A3 (de) 2004-06-30

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