EP0015992B1 - Low profile crushing apparatus - Google Patents

Low profile crushing apparatus Download PDF

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Publication number
EP0015992B1
EP0015992B1 EP79900517A EP79900517A EP0015992B1 EP 0015992 B1 EP0015992 B1 EP 0015992B1 EP 79900517 A EP79900517 A EP 79900517A EP 79900517 A EP79900517 A EP 79900517A EP 0015992 B1 EP0015992 B1 EP 0015992B1
Authority
EP
European Patent Office
Prior art keywords
crusher
jaw
crushing
chamber
crusher chamber
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
Application number
EP79900517A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0015992A1 (en
Inventor
Harold John Miller
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.)
United States Department of Commerce
Original Assignee
United States Department of Commerce
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 United States Department of Commerce filed Critical United States Department of Commerce
Publication of EP0015992A1 publication Critical patent/EP0015992A1/en
Application granted granted Critical
Publication of EP0015992B1 publication Critical patent/EP0015992B1/en
Expired 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
    • B02C1/00—Crushing or disintegrating by reciprocating members
    • B02C1/02—Jaw crushers or pulverisers
    • B02C1/04—Jaw crushers or pulverisers with single-acting jaws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C21/00—Disintegrating plant with or without drying of the material
    • B02C21/02—Transportable disintegrating plant

Definitions

  • This invention relates to a low profile crusher apparatus suitable for crushing mine ore or hard rock, or any other suitable material.
  • One preferred example of the crusher apparatus is a portable, low head room or low profile, crusher for primary reduction of ore or hard rock, close to the active working areas in underground mining operations.
  • a Blake type crusher is disclosed in US-A-2,127,027 as comprising: a main frame; a stationary, vertically inclined, first crusher jaw; a movable, vertically inclined, second crusher jaw, pivoted at the lower end thereof, the upper end of that jaw being connected to a pitman; an eccentric drive connected to said pitman so as to drive said second crusher jaw; and conveyor means mounted adjacent the lower end of said second crusher jaw so as to collect and transport the crushed material.
  • a low profile crusher apparatus suitable for crushing mine or hard rock, comprising:
  • feeder and collector means comprises: feeder means (28) mounted adjacent said crusher chamber (84), for feeding material into an upper portion of said crusher chamber; and collector means (30) mounted adjacent the lower end of said crusher chamber (84), for collecting and transporting material passing through said crusher chamber.
  • said preferred embodiment is characterized in that the uppermost portion of said second crusher jaw (60) is disposed lower than the uppermost portion of said first crusher jaw (39) so as to define an inlet (82) of crusher chamber (84); and the upper portion of said feeder means (28) is disposed at a height not substantially higher than the uppermost portion of said first crusher jaw (39).
  • a method of crushing hard material with crusher apparatus said method being characterized by the use of a crusher apparatus according to said first aspect of the present invention.
  • said material to be crushed comprises mine ore and/or hard rock.
  • the crusher jaws (39, 60) are vertically inclined to form an inclined crusher chamber (84) which slopes downwardly from inlet to outlet thereof, with the lower jaw (60) being movable to impart crushing action between it and a stationary upper jaw (39).
  • This arrangement of jaws (39, 60) in combination with features a) and b) of claim 1 provides a powerful and most efficient crushing of material while maintaining very adequate feeding of the material through the crusher chamber.
  • the arrangement of the crusher jaws in this manner permits the attendant eccentric shaft, drive means (66, 68), and support means (62, 64) to be positioned in a lower profile manner on the main frame (20), as well as reduce the height at which feeder (28) feeds the inlet of the crusher chamber (84) so as to permit the feeding and collecting system (28, 30) to be mounted at a lower position on the main frame (20).
  • the present invention enables a portable, low head room, crusher to be provided which has significantly reduced profile compared to prior art apparatus suitable for use in underground mine applications, and has a crusher chamber capacity comparably equal to prior art crushers which require significantly greater head room than required by apparatus according to said first aspect of the present invention.
  • a crusher of the present invention can be more easily and efficiently transported from site to site compared to prior art, hard rock crushers.
  • a crusher of the present invention is of comparable ease to manufacture and maintain relative to prior art, hard rock crushers.
  • a crusher of the present invention can be advantageously utilized more closer to the working areas of undergound mines, for greatly improving ore handling and production in those mines. It will be appreciated that the disposition of the lower crusher jaw (60) and the eccentric drive means (66, 68) not only contributes to providing lower head room but also ensures efficient transport of crushed material from the inlet of the crusher chamber (84) to the outlet thereof.
  • a portable, low profile, crusher apparatus includes a main frame 20, which is supported for movement by several pairs of conventional wheel means 22, 24.
  • a crusher portion 26 is centrally located on the main frame 20 so as to be adjacent a conventional feed conveyor system 28 and above a discharge conveyor system 30.
  • feed and discharge conveyor systems are of conventional nature, and a variety of standard types thereof could be employed within the context of the present invention.
  • a typical scalping mechanism is usually included to remove fine or the like before entry to the crusher chamber 84.
  • An eccentrically mounted shaft means 32 is connected to a pair of fly wheels such as at 34, which in turn is driven via a belt drive 36 connected to a conventional motor 38.
  • Each of these components can be mounted on the main frame 20 in any conventional suitable manner.
  • the crusher portion 26 is shown in greater detail and includes a stationary first jaw 39, together with supporting frame 40 mounted for pivoted movement at its upper end via a shaft 42, which in turn is supported at each end to main frame .20 in a conventional manner.
  • a replaceable jaw liner 44 comprising highly wear resistant material (e.g. manganese) is releasably fixed to supporting frame 40 by means of threaded wedgelike member 46.
  • the lower end of stationary jaw 39 is releasably fixed in position by a toggle arrangement 48 provided with a series of shims 50.
  • the toggle arrangement 48 is easily used to adjust the position of frame 40 pivoted about shaft 42 so as to vary the discharge opening between the jaws 39, 60.
  • Toggle arrangement 48 is held in place by means of rods 52 pivotally mounted to flanges 54 carried by supporting frame 40, and provided with threaded ends 56 respectively carrying a nut 58 and extended through suitable respective holes in main frame 20.
  • the jaw 39 can be pivoted and locked into a new position.
  • the jaw 39 is inclined relative to the horizontal, and slopes downwardly from the feed inlet 82 of the crusher chamber 84 to the outlet 85 thereof.
  • a moveable jaw 60 has a supporting frame or pitman 62.
  • the upper end of pitman 62 is supported by a toggle arrangement 64 located beneath the feeder end.
  • the upper and lower ends of pitman 62 are attached to a tubelike support 66 provided with eccentric bearings 68 mounted on eccentric shaft 32.
  • a pair of bearings 70 are mounted on the main frame 20 and connected to eccentric shaft 32.
  • Each end of the shaft 32 is mounted to a fly wheel 34 provided with counter weights to offset the unbalanced weight of pitman 62.
  • One of fly wheels 34 is connected to a conventional electric motor 38 via belt drive 36 to provide rotary power to eccentric shaft 32.
  • the pitman 62 includes side plates 74 and the extended collar-like portion 76 which is connected to tubelike support 66, such that the eccentric motion of shaft 32 is imparted to pitman 62, and a replaceable jaw liner 77 is mounted thereon by a removable threaded wedgelike member 78. It is desirable to provide detachable wear plates 80 respectively to each of the side plates 74 of pitman 62, because of abuse normally encountered in the crusher chamber 84 during operation.
  • the jaw 60 is disposed in an inclined position with the upper end thereof adjacent the feed inlet 82 of crusher chamber 84 defined between the respective jaws 39, 60 and the pitman's side plates 74.
  • the lower end of crusher chamber 84 includes a discharge outlet 85 for the processed material which falls to the discharge conveyor 30.
  • the toggle arrangement 64 supporting pitman 62 includes an adjustable and replaceable toggle seat 65 mounted on a cross member 67 fixed to the main frame 20. Another replaceable toggle seat 69 is provided at the top end of pitman 62 where it is connected to pitman 62. It may be desirable to provide for positive retention of toggle arrangement 64 in seat 69 by means of a releasably mounted spring or the like to prevent inadvertent unseating of toggle arrangement 64 during adverse operation conditions. By adjustment of the position of toggle arrangement 64, the motion of the feed end of crusher jaw 60 can be varied according to the most desirable action for a given crushing application.
  • toggle arrangements 48, 64 serve as safety mechanism because they can be designed to break should uncrushable material enter crusher chamber 84.
  • toggle arrangements 48, 64 are easily replaceable and relatively inexpensive, their breakability provides a safety factor for preventing more serious damage to the other components which represent more difficult and expensive repair or replacement.
  • the crusher apparatus shown in the drawings can be used for crushing mine ore and/or hard rock, in e.g. underground mining operations.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Disintegrating Or Milling (AREA)
  • Crushing And Grinding (AREA)
EP79900517A 1978-05-11 1979-12-17 Low profile crushing apparatus Expired EP0015992B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US90490678A 1978-05-11 1978-05-11
US904906 1978-05-11

Publications (2)

Publication Number Publication Date
EP0015992A1 EP0015992A1 (en) 1980-10-01
EP0015992B1 true EP0015992B1 (en) 1983-02-09

Family

ID=25419949

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79900517A Expired EP0015992B1 (en) 1978-05-11 1979-12-17 Low profile crushing apparatus

Country Status (6)

Country Link
EP (1) EP0015992B1 (enExample)
JP (1) JPS55500290A (enExample)
AT (1) ATE2398T1 (enExample)
CA (1) CA1132512A (enExample)
DE (1) DE2964699D1 (enExample)
WO (1) WO1979001060A1 (enExample)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6084166A (ja) * 1983-06-02 1985-05-13 株式会社栗本鉄工所 可搬式破砕装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2566588A (en) * 1946-03-02 1951-09-04 Bastian Blessing Co Beverage dispenser with control setting indicator
US2873922A (en) * 1954-11-22 1959-02-17 Arthur W Fahrenwald Jaw crusher
US3386667A (en) * 1965-10-22 1968-06-04 Clinton E. May High frequency hydraulic actuated jaw crusher
US3804345A (en) * 1972-09-15 1974-04-16 Barber Greene Co Jaw crusher die mounting
US3946955A (en) * 1974-08-01 1976-03-30 Rock Industries Machinery Corporation Multiple section wear plate for a rock crusher

Also Published As

Publication number Publication date
DE2964699D1 (en) 1983-03-17
WO1979001060A1 (en) 1979-12-13
EP0015992A1 (en) 1980-10-01
ATE2398T1 (de) 1983-03-15
CA1132512A (en) 1982-09-28
JPS55500290A (enExample) 1980-05-15

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