WO2001087488A1 - Eccentric assembly unit in cone crusher - Google Patents
Eccentric assembly unit in cone crusher Download PDFInfo
- Publication number
- WO2001087488A1 WO2001087488A1 PCT/BG2001/000009 BG0100009W WO0187488A1 WO 2001087488 A1 WO2001087488 A1 WO 2001087488A1 BG 0100009 W BG0100009 W BG 0100009W WO 0187488 A1 WO0187488 A1 WO 0187488A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- bushing
- cone
- crusher
- assembly unit
- eccentric assembly
- Prior art date
Links
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
- B02C2/02—Crushing or disintegrating by gyratory or cone crushers eccentrically moved
- B02C2/04—Crushing or disintegrating by gyratory or cone crushers eccentrically moved with vertical axis
Definitions
- the present invention relates to eccentric assembly unit in cone crusher, which is used in the branches of industry, where fragmentation (reduction of lump size) of ore and non-ore minerals, which pass between two cones - movable and immovable.
- the eccentric assembly unit provides the implementation of circular pendulum motion by the movable cone, and as a result formation lines of both cones periodically go close to each other and separate from each another, thus lumps processed material fallen between the two cones are crushed (fragmented).
- the eccentric assembly which determines the cone crusher workability, is the most heavily working unit in it. It consists of a body, manufactured of steel, with an immovable cone gear-wheel joint either to upper or lower edge of it. The inner surface is treated with an angular eccentricity towards the outer surface and determines the trajectory of motion of movable cone axis. Inner and outer surfaces of the body are formed as supports for rolling or plain bearings.
- Cone crushers with plain bearings are manufactured in two variants: circular pouring of the inner surface of the body of eccentric assembly unit and outer surface along an axis of 240 - 270 with antifrictional material, usually babbit
- An eccentric assembly unit in cone crushers most similar in its technical nature is the one, described in [3]. It consists of a body with an immovable cone gear-wheel joint to one of its ends. The inner surface is treated with an angular eccentricity towards its outer surface.
- Inner bushing which is used as a plain bearing for shank of the shaft of movable cone of crusher, is connected immovably to inner surface of the body.
- the bushing is manufactured of bronze or steel, poured on the working surface with babbit.
- Outer surface of the body is born in a second plain bearing, manufactured as a second bushing of bronze or steel with babbit.
- the inner bushing is cylindrical or cone with an angular eccentricity.
- the outer bushing is usually cylindrical.
- the eccentric unit In the process of fragmentation of processed in the crusher material, the eccentric unit is the one, which takes the difference of periodically changing forces of fragmentation, originating between the movable and immovable cones of the crusher. This involves fast wearing of plain bearings, realized as bushings, made of bronze or steel, which on its own behalf rises the cost of exploitation.
- the object of the present invention is to create an eccentric assembly unit in cone crusher with increased longevity and reduced exploitation cost.
- the object of the present invention is an eccentric assembly unit in cone crusher, consisting of a body, the form of which is similar to cylindrical one, with a connected to one of its ends an immovable cone gear-wheel.
- the inner surface is treated with an angular eccentricity towards the outer surface.
- Bushing which is used as a plain bearing for shank of the shaft of movable cone of crusher, is connected immovably to inner surface of the body.
- Outer surface of the body is born by a second plain bearing, used as a second plain bearing.
- the second bushing is connected immovably to corpus of the crusher.
- First and second plain bearings are manufactured from plastic material of the type of semi- crystalline engineering plastics, for example, polyamides (PA), polyethyleneterrephtalate and polyacetal (POM) or their modification.
- Inner surface of the first plain bearing, realized as bushing is cylindrical. It is treated with an angular eccentricity. It is possible the inner plain bearing to be realized a cone bushing.
- Figure 1 presents a longitudinal section along the axis of first embodiment of the eccentric assembly unit in cone crusher
- Figure 2 presents a longitudinal section along the axis of second embodiment of the eccentric assembly unit in cone crusher.
- the eccentric assembly unit in cone crusher shown in fig. 1, consists of body , which has a shape near to the cylindrical shape, manufactured of steel, a cone gear wheel is joined immovably to one of the ends. Inner surface of the body 1 is treated with an angular eccentricity towards its outer surface.
- the body 1, together with the gear wheel 2 and bushing 3 is born by its outer surface by a second bushing 4, which is bond immovably to corpus of crusher, not shown in the figure.
- the two bushings 3 and 4 are of cylindrical shape. Both plain bearings, realized by bushings 3 and 4 are manufactured of plastic material of the type of semi-crystalline engineering plastics, for example PA, PETP, POM and their modifications.
- the second embodiment of the eccentric assembly unit in the cone crusher, shown in figure 2 differs from those, shown in figure 1 in the fact that inner surface of body 1 is a cone-shaped and the first bushing 3 is also cone-shaped.
- the eccentric assembly is the unit that takes the reaction of periodically changing forces of fragmentation, originating between the movable and immovable cones of the crusher, however as the bushings 3 and 4 are manufactured of plastic material of the above- mentioned type with increased longevity, because: - the coefficient of friction of steel into plastic material is constant in a wide temperature range and is lower than the coefficient of friction of bronze babbit in steel, which provides reduced working temperature of plain bearing, accident-free work in dusty and/or moist medium and/or insufficient lubrication of friction surfaces;
- the first embodiment of the useful model is realized and analyzed by the authors under working conditions.
- the bushing 3 of dimensions outer diameter 644 mm, inner diameter 561 mm and length 820 mm is manufactured of modified (thermally stabilized) PA. After 6 months of continuous exploitation the wearing of the working diameter of bushing 3 is even along its whole length and is within the boundaries of 0.15 mm to 0.20 mm. There is no wearing on shank of shaft of movable cone, to the contrary, polishing is observed.
- a bushing of highly quality bronze, having the same dimension, put in the same working conditions has exploitation life of 3 to 4 months. Often this life is reduced just to several days. Price of bushing of the above mentioned plastic material is 1.5 to 2 times lower than price of bronze bushing, which brings to reduced exploitation cost.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Food Science & Technology (AREA)
- Crushing And Grinding (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10193396T DE10193396T1 (en) | 2000-05-10 | 2001-04-04 | Eccentric arrangement in a cone crusher |
AU2001246258A AU2001246258A1 (en) | 2000-05-10 | 2001-04-04 | Eccentric assembly unit in cone crusher |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BG104420 | 2000-05-10 | ||
BG10442000 | 2000-05-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001087488A1 true WO2001087488A1 (en) | 2001-11-22 |
Family
ID=3928077
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/BG2001/000009 WO2001087488A1 (en) | 2000-05-10 | 2001-04-04 | Eccentric assembly unit in cone crusher |
Country Status (3)
Country | Link |
---|---|
AU (1) | AU2001246258A1 (en) |
DE (1) | DE10193396T1 (en) |
WO (1) | WO2001087488A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111774132A (en) * | 2020-07-28 | 2020-10-16 | 南昌矿山机械有限公司 | Eccentric assembly of multi-cylinder hydraulic cone crusher |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1027490B (en) * | 1954-11-03 | 1958-04-03 | Kloeckner Humboldt Deutz Ag | Gyro crusher |
DE2164244A1 (en) * | 1971-12-23 | 1973-07-05 | Kaljunow | ECCENTRIC DEVICE FOR CONE CRUSHERS |
US4773604A (en) * | 1982-09-23 | 1988-09-27 | Johnson Louis W | Seat member for gyratory rock crusher bowls |
RU2086817C1 (en) | 1995-01-31 | 1997-08-10 | Государственное предприятие "Нефтебур" | Sliding friction unit |
-
2001
- 2001-04-04 WO PCT/BG2001/000009 patent/WO2001087488A1/en active Application Filing
- 2001-04-04 AU AU2001246258A patent/AU2001246258A1/en not_active Abandoned
- 2001-04-04 DE DE10193396T patent/DE10193396T1/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1027490B (en) * | 1954-11-03 | 1958-04-03 | Kloeckner Humboldt Deutz Ag | Gyro crusher |
DE2164244A1 (en) * | 1971-12-23 | 1973-07-05 | Kaljunow | ECCENTRIC DEVICE FOR CONE CRUSHERS |
US4773604A (en) * | 1982-09-23 | 1988-09-27 | Johnson Louis W | Seat member for gyratory rock crusher bowls |
RU2086817C1 (en) | 1995-01-31 | 1997-08-10 | Государственное предприятие "Нефтебур" | Sliding friction unit |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111774132A (en) * | 2020-07-28 | 2020-10-16 | 南昌矿山机械有限公司 | Eccentric assembly of multi-cylinder hydraulic cone crusher |
Also Published As
Publication number | Publication date |
---|---|
DE10193396T1 (en) | 2003-04-17 |
AU2001246258A1 (en) | 2001-11-26 |
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