EP3131677A1 - Roll-off bushing in a crusher - Google Patents
Roll-off bushing in a crusherInfo
- Publication number
- EP3131677A1 EP3131677A1 EP15715234.9A EP15715234A EP3131677A1 EP 3131677 A1 EP3131677 A1 EP 3131677A1 EP 15715234 A EP15715234 A EP 15715234A EP 3131677 A1 EP3131677 A1 EP 3131677A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rolling
- abwälzbuchse
- receptacle
- crusher
- bushing
- 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.)
- Granted
Links
- 238000005096 rolling process Methods 0.000 claims description 55
- 238000000034 method Methods 0.000 claims description 5
- 238000005299 abrasion Methods 0.000 abstract 3
- 238000012423 maintenance Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 229910000906 Bronze Inorganic materials 0.000 description 2
- 229910001208 Crucible steel Inorganic materials 0.000 description 2
- 239000010974 bronze Substances 0.000 description 2
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229910001060 Gray iron Inorganic materials 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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
- B02C2/06—Crushing or disintegrating by gyratory or cone crushers eccentrically moved with vertical axis and with top bearing
Definitions
- the invention relates to a conical or centrifugal crusher with a tumbling crusher axis, the head is mounted in a traverse held by a top axle bearings.
- the upper journal bearing has a rolling bushing accommodated in a central receptacle, in which an annular wear insert ("wear insert") is held against the head of the breaker axle rolls against this wear insert
- the invention also relates to a method for installing an annular wear insert in the upper Axle bearing of such a crusher.
- Crushers such as gyratory crushers, jaw crushers and cone crushers have long been known and disclosed for example in DE 10 201 1 009 409 A1.
- changing mining and processing methods require the ongoing development of these crushers, leading to ever greater performance coupled with cost-effective operation and hence low maintenance and servicing costs.
- the cylindrical wear insert which has a slightly convex "convex" inner wall to absorb the tumbling movement, is shrunk into the rolling bushing during assembly, for which the rolling bush is widened by heating and then cooled together with the previously cooled wear insert, so that this braced at the temperature compensation in the rolling bushing.
- the essential aspect of the invention is to form the roll-off as it were as a collet, which is drawn into the inner cone of the recording with the traction means and thereby deformed such that it clamps the initially loosely held Schl constitutiongan non-positively.
- the Abracelzbuchse opens with the release of the traction device respectively with the extension of the Abdozenslzbuchse from the recording, so that the frictional connection between Schl possessrus and Abdozenslzbuchse subsides and then again loosely fitting Schl must be removed.
- the central receptacle which is formed as part of the upper axle bearing of the traverse, a conically tapered inner cone.
- the traction means is provided according to the invention, with which the Abubalzbuchse fed coaxially into the receptacle and is inserted.
- the inner diameter of the rolling bush narrows correspondingly and thus clamps the wear insert, which is initially loosely inserted therein, in a force-locking manner.
- the wall of the rolling bush forming the conically tapered outer cone is radially interrupted by at least one but in particular of several slots, with the slot or slots extending in the wall in the axial direction.
- the wall as also known from collets, a plurality of slots distributed symmetrically around the circumference, which extend over a great length, which advantageously corresponds to the length of the inset in the rolling insert wear insert.
- the slots are so long that they open in the lower edge of the rolling bush.
- the assembly of the rolling bushing from above and not from below.
- the rolling bush slides with its weight pulled into the receptacle.
- the mounting from above is made possible by the fact that the inner cone of the receptacle tapers downwards.
- the required traction means is designed so that it can be operated from the top and the roll-in according to insert or retracts from above.
- the traction means is designed as a screw, which acts on a flange of the rolling bushing.
- the screws of the screw union penetrate through holes, which are distributed uniformly around the circumference of the flange surrounding the upper edge of the rolling bushing.
- the screws are then screwed into threads, which are distributed in appropriate pitch around the edge of the recording around. Since it is possible under certain circumstances that the retracted rolling bush can not be solved without loosing the conical seat of the receptacle despite loosening the screw Association, it is advantageous to provide continuous Abdrückgewinde in the flange into which the screws are screwed.
- the rolling bush at the bottom forms a particular annular stop on which the Schlauerdon rests after loose insertion. This is a defined position of the Schlauerdenes within the rolling bushing and thus given within the head bearing.
- Figure 1 is a held in the traverse 1 upper axle bearing and Figure 2 is a rolling bush.
- FIG. 1 shows the upper axle bearing of a bevel or gyratory crusher held in a two-armed traverse 1 in which the head of a crusher shaft 2 is rotatably mounted.
- the head of a crusher shaft 2 is rotatably mounted.
- the circumferential eccentric bushing impresses the crusher axis on the tumbling motion characteristic of gyratory crushers.
- the head of the crusher axis 2 thus undergoes a tumbling movement in the upper axle bearing and rolls off against a held in the upper axle bearing annular wear insert 3 from.
- a static lubrication is provided between the head of the crusher axis 2 and the wear insert 3.
- the (not shown) axial support of the crusher axis is done by means of an arranged on the piston of a hydraulic cylinder thrust bearing.
- the wear insert 3 is a ring manufactured in this case from the bearing material, in particular cast iron, steel or bronze, with a somewhat convexly curved inner surface which is held in a rolling bushing 4.
- the rolling bush 4 is received in a cylindrical central receptacle 5 of the upper axle bearing.
- the receptacle 5 forms a conically downwardly slightly tapered inner cone.
- the outer jacket 7 of the rolling bushing 4 likewise tapers slightly conically downward (FIG. 2), so that the conical surfaces of the receptacle 5 and the rolling bushing 4 slide over each other when retracting the rolling bush 4 into the receptacle 5 like a clamping set and the axial movement increases a narrowing of the diameter leads.
- the inner circumference of the rolling bushing 4 is cylindrical, so that the annular wear insert 3 can be inserted with a sliding fit and then clamped over the retraction of the rolling bushing 4.
- the rolling bush 4 forms at the lower edge 12 of an annular stop 6, on which the wear insert 3 rests.
- the screws For pulling the rolling bushing 4 in the receptacle 5 is provided as a traction means a screw association, the screws penetrate 8 holes 9, which are distributed uniformly around the circumference of a located at the top of the Abicalzbuchse 4 flange 10. The screws 8 are screwed into threads, which are introduced accordingly in the upper edge of the receptacle 5. When pulling the Abcialzbuchse narrows 4 and thus clamps the incoming wear insert 3 frictionally.
- the wall of the rolling bushing 4 is radially interrupted by a plurality of slots 1 1, which extend in the axial direction along the wall. There are the slots 1 1 distributed symmetrically around the circumference and extend from the flange 10 over the entire length of the rolling insert 4 in the rolling insert 3. The slots 1 1 open in the lower edge 12 of the rolling bushing 4th
- the wear insert 3 is first loosely inserted into the rolling-in bushing 4, which is not retracted into the receptacle 5. Then the conical Abdicalzbuchse 4 by means of the screw federation is drawn evenly into the conically tapered inner cone of the receptacle 5, which narrows as a collet slotted Abicalzbuchse 4. With the narrowing of the inset wear insert 4 is clamped non-positively in the rolling bushing 4. To remove the wear insert 3, only the screw union has to be loosened and the rolling bushing 4 has to be removed upward from the receptacle 5. With the removal of the rolling bushing 4 widens the diameter, so that the wear insert 3 can be easily removed. For lifting the rolling bushing 4 from the receptacle 5, a Abdrückgewinde can be provided.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Food Science & Technology (AREA)
- Crushing And Grinding (AREA)
- Mounting Of Bearings Or Others (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102014105415.6A DE102014105415A1 (en) | 2014-04-16 | 2014-04-16 | Rolling bush in a crusher |
PCT/EP2015/057562 WO2015158579A1 (en) | 2014-04-16 | 2015-04-08 | Roll-off bushing in a crusher |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3131677A1 true EP3131677A1 (en) | 2017-02-22 |
EP3131677B1 EP3131677B1 (en) | 2019-11-06 |
Family
ID=52823626
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15715234.9A Active EP3131677B1 (en) | 2014-04-16 | 2015-04-08 | Roll-off bushing in a crusher |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP3131677B1 (en) |
CN (1) | CN106163666B (en) |
AU (1) | AU2015246193B2 (en) |
CL (1) | CL2016002525A1 (en) |
DE (1) | DE102014105415A1 (en) |
DK (1) | DK3131677T3 (en) |
PE (1) | PE20161455A1 (en) |
WO (1) | WO2015158579A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2022069044A1 (en) | 2020-10-01 | 2022-04-07 | Sandvik Srp Ab | Gyratory crusher spider bushing |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20170304830A1 (en) | 2016-04-25 | 2017-10-26 | Metso Minerals Industries, Inc. | Spider bushing assembly for a gyratory crusher |
CN108253023A (en) * | 2016-12-29 | 2018-07-06 | 浙江双金机械集团股份有限公司 | Bearing at the top of Single-Cylinder Hydraulic Cone Crusher |
CN109382159B (en) * | 2018-12-18 | 2024-03-12 | 广西华银铝业有限公司 | Novel cone crusher arm support cap |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US566088A (en) * | 1896-08-18 | Stone-breaker | ||
DE1164804B (en) * | 1962-11-26 | 1964-03-05 | Westfalia Dinnendahl Groeppel | Upper bearing on cone crushers with a suspended crushing cone shaft |
CN85101793A (en) * | 1985-04-01 | 1987-01-10 | 沃斯特·阿尔派因股份公司 | Gyratory crusher |
FI82393C (en) * | 1989-07-14 | 1998-05-20 | Nordberg Lokomo Oy | Cone crusher |
TW265277B (en) * | 1993-02-15 | 1995-12-11 | Clyde Ind Ltd Trading As Jaques | |
US8070084B2 (en) | 2010-02-05 | 2011-12-06 | Metso Minerals Industries, Inc. | Spider having spider arms with open channel |
WO2012141558A1 (en) * | 2011-04-14 | 2012-10-18 | Ha Yong-Gan | Cone-shaped crusher |
EP2873461B1 (en) * | 2013-11-19 | 2017-04-12 | Sandvik Intellectual Property AB | A gyratory crusher spider bushing assembly |
-
2014
- 2014-04-16 DE DE102014105415.6A patent/DE102014105415A1/en not_active Ceased
-
2015
- 2015-04-08 PE PE2016001914A patent/PE20161455A1/en unknown
- 2015-04-08 AU AU2015246193A patent/AU2015246193B2/en active Active
- 2015-04-08 CN CN201580019566.1A patent/CN106163666B/en active Active
- 2015-04-08 EP EP15715234.9A patent/EP3131677B1/en active Active
- 2015-04-08 WO PCT/EP2015/057562 patent/WO2015158579A1/en active Application Filing
- 2015-04-08 DK DK15715234.9T patent/DK3131677T3/en active
-
2016
- 2016-10-04 CL CL2016002525A patent/CL2016002525A1/en unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2022069044A1 (en) | 2020-10-01 | 2022-04-07 | Sandvik Srp Ab | Gyratory crusher spider bushing |
Also Published As
Publication number | Publication date |
---|---|
AU2015246193A1 (en) | 2016-10-27 |
DK3131677T3 (en) | 2020-02-03 |
CL2016002525A1 (en) | 2017-03-03 |
CN106163666B (en) | 2019-03-12 |
AU2015246193B2 (en) | 2018-11-08 |
WO2015158579A1 (en) | 2015-10-22 |
PE20161455A1 (en) | 2017-02-01 |
DE102014105415A1 (en) | 2015-10-22 |
EP3131677B1 (en) | 2019-11-06 |
CN106163666A (en) | 2016-11-23 |
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