EP3408029A1 - Dispositif de support et procédé de retrait frontal d'un corps de roulement se trouvant dans un broyeur à cylindres, et broyeur à cylindres équipé d'un corps de roulement à retrait frontal - Google Patents

Dispositif de support et procédé de retrait frontal d'un corps de roulement se trouvant dans un broyeur à cylindres, et broyeur à cylindres équipé d'un corps de roulement à retrait frontal

Info

Publication number
EP3408029A1
EP3408029A1 EP17701533.6A EP17701533A EP3408029A1 EP 3408029 A1 EP3408029 A1 EP 3408029A1 EP 17701533 A EP17701533 A EP 17701533A EP 3408029 A1 EP3408029 A1 EP 3408029A1
Authority
EP
European Patent Office
Prior art keywords
roller
roll
receiving section
carrying device
roller body
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
Application number
EP17701533.6A
Other languages
German (de)
English (en)
Other versions
EP3408029B1 (fr
Inventor
Pascal REIS
Hermann Buerke
Oliver Schneider
Cyril BRÄNDLI
Sebastian WELS
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.)
Buehler AG
Original Assignee
Buehler AG
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 Buehler AG filed Critical Buehler AG
Publication of EP3408029A1 publication Critical patent/EP3408029A1/fr
Application granted granted Critical
Publication of EP3408029B1 publication Critical patent/EP3408029B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • B02C4/00—Crushing or disintegrating by roller mills
    • B02C4/02—Crushing or disintegrating by roller mills with two or more rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F5/00—Mobile jacks of the garage type mounted on wheels or rollers
    • B66F5/02—Mobile jacks of the garage type mounted on wheels or rollers with mechanical lifting gear
    • B66F5/025—Mobile jacks of the garage type mounted on wheels or rollers with mechanical lifting gear screw-actuated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C4/00—Crushing or disintegrating by roller mills
    • B02C4/28—Details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C4/00—Crushing or disintegrating by roller mills
    • B02C4/28—Details
    • B02C4/30—Shape or construction of rollers

Definitions

  • the invention relates to a support device for frontal removal of a roll body from a roll mill, a roll mill with a frontally removable roll body and a method for frontal removal of a roll body from a Wal ⁇ zenstuhl.
  • the roller can be removed together with the roller stubs. All attachments on the roller stubs, such as pulleys and couplings for gearbox connection or direct drive, must be removed before the roller is removed from the roller mill with a crane or with a scaffold.
  • the roller mill must be designed so that the roller with the roller stubs can be removed. Possibly. Additional components must be removed on the roller mill. The roller is usually completely replaced, which is very costly and time consuming.
  • the roller can also be removed together with the roller stubs and the adjusting and bearing mechanism. All attachments on the roller stubs, such as pulleys and couplings for gearbox connection or direct drive, must be removed before the roller is removed from the roller mill with a crane or with a scaffold.
  • the roller mill must be designed so that the roller with the roller stubs can be removed. Possibly. Additional components must be removed on the roller mill. the. The roller is usually completely replaced, which is very costly and time consuming.
  • WO 2005/102531 A1 proposes to remove only the roll shell.
  • the roll stub are moved apart and raised the roll shell and removed from the roll mill.
  • the roller or the roll shell must be accessible from above. This is not possible with all roll mills, in particular when several mulling stages are arranged one above the other. Furthermore, the feeding of the roll mill often also takes place from above. In such a case, the components may need to be first ent ⁇ removed.
  • Such a solution is also only suitable for single-stage roller mills with rollers of smaller dimensions (diameter up to 25 cm and length up to 1 m).
  • the support device comprises a base frame and a receiving portion for the roller body, which can be transferred from an insertion position to a support position.
  • the receiving portion in this case has a course, which at least partially comprises the roll body in the supporting position. With the receiving portion in the import position, the support device is inserted below the roller body, with the Receiving portion is supported in the supporting position of the roll body.
  • a "frontal removal" of a roller body in the sense of the present invention means that apart from tolerable deviations, the roller body can be removed essentially vertically (horizontally) from a roller mill
  • a curve is with a "history of the receiving portion comprising at least partially the Walzenkör ⁇ per" is meant at which the recording ⁇ portion in the supporting position a rolling down of the roller body is prevented.
  • the receiving portion in such a manner out ⁇
  • the at least two support points must be higher than the lowest point of the roller body If the roll body has an imbalance, this applies correspondingly, taking into account the center of gravity
  • the support points may be formed, for example, by two rods which, when used as intended, extend parallel to one another, for example ur roll axis extend.
  • the receiving section can also have a course, which forms a recess for receiving the roller body in the supporting position.
  • the shape or the course of the depression does not necessarily correspond to the curvature of the roll body. It is possible, for example, that the receiving section allows the uptake of roll bodies of different diameters. It may happen that roller bodies with a small diameter have a game when the receiving portion is in the support position and the roll body worn becomes. It is only important here that the receiving section surrounds the roller body in such a way that the roller body can not unintentionally leave the receiving section, eg due to vibrations or inertia during the removal.
  • the height difference between contact points and lowest point of the roll body in the vertical direction is more than 5% of the roll body diameter, more preferably more than 25% of the roll body diameter and more preferably between 25% and 40% of the roll body diameter.
  • the receiving portion may have a profile with a radius of curvature, which may be greater than the Krümmungsra ⁇ dius of the roller body.
  • the receiving portion has a course with a curvature, which corresponds to the curvature of the roller body ⁇ .
  • the weight can be distributed over the entire contact surface of the receiving portion. In particular damage to the roll surface is thus avoided.
  • a course allows automatic centering and positioning of the support device when the receiving portion is moved from the import position to the support position.
  • the base frame has a substantially L-shaped configuration with two mutually angled legs, wherein in an end region of a leg, preferably the shorter ⁇ ren leg, the receiving portion is pivotally mounted. This preferred embodiment is particularly simple to make herzu ⁇ , since the receiving portion is pivotally mounted on the base frame and can not be performed consuming.
  • a leg preferably the longer leg, guide means, preferably designed as rollers, on.
  • the Füh ⁇ agents serve to guide the support means during insertion of the support device below the roll and are formed Trains t forthcoming complementary to further guide means of the roller mill.
  • This is preferably realized by rollers which cooperate with a suitably designed guide rail of the roller ⁇ chair.
  • the receiving portion by means of actuating means between the insertion position and the support position is movable.
  • the actuating means preferably comprise mechanical, hydraulic or pneumatic actuating means due to the weight of the roller body.
  • the actuating means are designed so that when the roller body rests on the receiving portion, a Self-locking of the actuating means occurs.
  • the actuating means preferably comprise a threaded rod.
  • Ei ⁇ ne such a configuration is particularly inexpensive to produce, can also be operated manually and is self-locking with a suitable dimensioning of the pitch of the thread.
  • the threaded rod is preferably mounted in a threaded bushing, wherein the threaded bushing is mounted in the same leg of the Grundrah- mens as the receiving portion.
  • the threaded bushing acts as an abutment when pressing the threaded rod and takes the possibly resulting axial force.
  • the threaded rod is preferably rotatably connected at one end but tension- and pressure-resistant connected to an expansion joint, wherein by spreading the threaded rod, the expansion joint can be spread and the receiving portion of the import position in the support position can be transferred.
  • Be ⁇ liens of the threaded rod axis - - a by rotating the threaded rod produced axial force. Since the threaded bushing is received as an abutment in the base frame, the axial force causes the spreading of the expansion joint, after which the receiving portion is moved and transferred from the insertion position to the supporting position.
  • the expansion joint preferably comprises three joint sections arranged around a common axis of rotation, a first joint section being connected to the threaded rod and the remaining ones
  • Joint portions are each pivotally connected to the base frame and the receiving portion. Thus, by force transmission from the threaded rod on the first joint portion, the remaining two joint portions are moved apart, after which the receiving portion is also moved.
  • the threaded rod is equipped with means for receiving a drive.
  • the means may be formed as a receptacle for a drive shaft, for example as a hexagon or hexagon.
  • the drive itself may be, for example, an electric motor, a pneumatic drill or a ratchet whose drive shaft can be inserted into the receptacle.
  • the recording can also be designed as a nut, so with a Wrench or a ratchet with appropriate attachment the threaded rod is rotatable.
  • means for limiting the pivoting movement of the receiving portion are provided.
  • the receiving portion against the roll surface too high ge is ⁇ stressed.
  • Such a voltage can damage not only the surface of the roll but also the roll body in such a bias against the roll stubs that a removal is not possible, or that is pushed upward at the moving apart of the rolling stub of the roll body and falls out of therawab ⁇ cut.
  • the invention further relates to a roller mill having a plurality of rollers, wherein at least one roller comprises a roller body with two roller stubs, wherein the roller body can be released by moving apart the two roller stubs relative to one another.
  • the one roller Füh ⁇ agent for a roller bearing means disposed at least, which are arranged below the roller or can be arranged such that the roller body head removed and the roll support means is movable perpendicular to the roll axis in one direction.
  • the roll support device is preferably the above-described roll support device.
  • the guide means allow the support of the roll support device to a frame of the roll mill and the guidance of the roll support device along the same guide means, so that no external devices such as a crane for the removal of the roll body are necessary.
  • the guide means allow a vertical guidance of the roll support device. This ensures that when the roller body is released, the roller-supporting device can slide out of the roller mill uncontrolled by gravity together with the roller body.
  • the guide means it is possible for the guide means to be formed, for example, slightly inclined, so that when the roller body is released, removal of the roller-supporting device by gravity is assisted and simplified. Conversely, it is conceivable that is guaranteed by corresponding ⁇ de inclination of the guide means by gravity, that the roll support means is positioned when inserted correctly below the roller and counteracted by the roll body after the release of Wal ⁇ zen emotionss an accidental sliding of the roll support means.
  • the guide means preferably comprise at least one guide rail.
  • the guide rail is complementary to the roll ⁇ carrying device formed so that, apart from a tolerable game, leidglich a movement of the roll support device in a direction perpendicular to the roll axis (and preferably perpendicular thereto) is possible.
  • the guide means are preferably in a product space angeord ⁇ net or can be arranged.
  • product space is understood to mean the space of the roll mill in which the rolls are arranged and through which a product passes (including a draw-in area and a feed area)
  • the invention further relates to a process for the frontal removal of a roll body of a roll mill with a multi ⁇ plurality of rollers, wherein at least one roll comprises a roll body with two roller stubs and wherein by redesignbewe ⁇ gen both roll stub relative to each other of the roller body can be released, comprising the following Steps:
  • inventive method is preferably carried out with a device according to the invention.
  • inventive method has already been described above with respect to the inventive apparatus or the inventive roll mill, so that in this regard mentioned advantages and preferred embodiments are applicable to the inventive method entspre ⁇ accordingly.
  • FIG. 1 shows a preferred embodiment of the inventive roll storage device in an import position.
  • FIG. 2 shows the roll carrier device of FIG. 1 in the support position;
  • FIG. 3 is a perspective view of the roller support device of FIG. 2; FIG.
  • Fig. 4 is a perspective view of a roll mill; a perspective view of the roll mill of Figure 4 with visible rails for the roll support device and Walzentragvorraumen; and
  • FIG. 6 is a schematic, side sectional view of the rollers ⁇ mill of Figure 5.
  • FIGs 1 and 2 a roller-supporting device, in each case in an insertion position E and a support position S, shown laterally.
  • the roll support device of Figure 2 is shown in perspective in Figure 3.
  • the support device 1 is composed of a base frame 2 and a receiving portion 3 for the roller.
  • the base frame 2 has, as seen from the side, a liformigen course with a long, substantially horizontally extending leg 21 and a shorter, substantially vertically extending leg 22.
  • a reinforcing strut 23 connects both legs 21 and 22 and gives the Konstruk ⁇ tion stability.
  • Rollers 4 are at both ends of the leg 21st arranged and thus allow the displacement of the support device 1.
  • the arranged in the region of the connection of both legs 21 and 22 roller 4 is supported by the axis 41.
  • the ande ⁇ re, arranged at the end of the long leg 21 roller 4 is supported by an axle 42.
  • the receiving portion 3 has a curved course and is mounted at the free end of the short leg 22 at a pivot axis 24 and thus from an insertion position E, in which the free end of the receiving portion 3 is lower than the lowest point of the roller to be removed in a Supporting position S can be transferred, in which the roll to be removed is supported on both sides against rolling down.
  • the base frame 2 consists of two mirror-symmetrical parts, which are held at a distance by spacer sleeves, which are respectively attached to the axle 41 and 42. Between the two parts of the receiving portion 3 is arranged, which also serves as a spacer.
  • means 5, which comprise the secure supporting and moving the roll ensures slightest ⁇ th.
  • the means 5, in this preferred execution, for example a threaded rod 6, which is rotatably mounted in a threaded ⁇ liner 7.
  • the threaded bushing 7 is each arranged in an off ⁇ section 13 of the short leg 22.
  • the cutout 13 allows for the - with respect to the threaded rod 6 - axial Kochtra ⁇ supply of forces, however, is profiled such that the threaded rod 6 is vertically pivotally to the threaded rod axis by an axis to a change in the height position of an end 8 of the threaded rod 6 consequences.
  • the remaining end of the threaded rod 6 is provided with a T-shaped handle 14.
  • the expansion joint 9 comprises in this embodiment, three joint portions 91, 92 and 93, which are pivotally mounted about a common axis 10.
  • the hinge portion 91 is equipped me a rotational joint 81 which receives the end 8 of the Ge ⁇ threaded rod 6, rotation of the threaded rod 6 made ⁇ light and the - with respect to the threaded rod axis - axial over- transmission of forces also enabled.
  • the remaining Gelenkab ⁇ sections 92 and 93 are respectively with the support frame 2 and the receiving portion 3 in operative connection.
  • the hinge portion 92 is pivotable about the axis 42.
  • the hinge portion 93 is also pivotally mounted with the receiving portion 3 via the axis 31.
  • the hinge portion 92 fulfills the function of a distance ⁇ holder for the base frame 2.
  • FIG. 4 schematically shows a roller mill 50.
  • a roller 51 is indicated by an arrow.
  • the roller 51 (and not visible in the figure 4 ⁇ roller 51) comprises a rolling ⁇ body 52, which is supported by two roller stubs.
  • the Rolling stub are designed such that they axially be ⁇ réelle the roller 51 and 51, ⁇ can be moved apart so that the roller body is released 52nd Below the rollers 51 and 51 are ⁇ in a product space 55
  • Guide rails 53 can be arranged. This is visible in Figures 5 and 6, wherein in the figure 6 and the second roller 51 ⁇ is shown schematically ⁇ table.
  • a guide rail 53 is arranged below a respective end region of the roller body, which is designed to receive and guide a carrying device 1.
  • a support device 1 is arranged on the guide rail 53 in each case.
  • the guide rail 53 and the support device 1 are matched to one another such that the support device 1 along the guide rail, apart from a tolerable lateral clearance, only in the direction perpendicular to the roll axis is displaceable. Further, the guide rails 53 are perpendicular to the rollers

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Rollers For Roller Conveyors For Transfer (AREA)
  • Crushing And Grinding (AREA)

Abstract

L'invention concerne un dispositif de support (1) pour le retrait frontal d'un corps de roulement se trouvant dans un broyeur à cylindres, comprenant un cadre de base (2) et une section de réception (3) pour le corps de roulement qui peut être transféré d'une position d'insertion (E) vers une position d'appui (S), la section de réception (3) présentant une forme qui, dans la position d'appui (S), entoure au moins partiellement le corps de roulement. De plus, le dispositif de support (1) peut être inséré sous le corps de roulement lorsque la section de réception (3) se trouve en position d'insertion (E), et le support du corps de roulement est assuré lorsque la section de réception (3) se trouve dans la position d'appui (S).
EP17701533.6A 2016-01-27 2017-01-27 Dispositif de support et procédé destiné au prélèvement frontal d'un cylindre d'un broyeur à cylindres et broyeur à cylindres comprenant un cylindre au prélèvement frontal Active EP3408029B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP16153028 2016-01-27
EP16170918 2016-05-23
PCT/EP2017/051806 WO2017129764A1 (fr) 2016-01-27 2017-01-27 Dispositif de support et procédé de retrait frontal d'un corps de roulement se trouvant dans un broyeur à cylindres, et broyeur à cylindres équipé d'un corps de roulement à retrait frontal

Publications (2)

Publication Number Publication Date
EP3408029A1 true EP3408029A1 (fr) 2018-12-05
EP3408029B1 EP3408029B1 (fr) 2020-10-28

Family

ID=57890843

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17701533.6A Active EP3408029B1 (fr) 2016-01-27 2017-01-27 Dispositif de support et procédé destiné au prélèvement frontal d'un cylindre d'un broyeur à cylindres et broyeur à cylindres comprenant un cylindre au prélèvement frontal

Country Status (6)

Country Link
US (1) US11834310B2 (fr)
EP (1) EP3408029B1 (fr)
CN (1) CN108778514B (fr)
DK (1) DK3408029T3 (fr)
ES (1) ES2837143T3 (fr)
WO (1) WO2017129764A1 (fr)

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3067884A (en) * 1961-07-27 1962-12-11 Ira E Williams Transfer missile handling cart
US4630781A (en) * 1984-07-11 1986-12-23 T.J. Gundlach Machine Company Apparatus and method for removing crushing rolls from a crushing apparatus
AU2620988A (en) * 1987-11-17 1989-06-14 Extec Screens And Crushers Limited Rotary crusher
US6527251B1 (en) * 1998-11-24 2003-03-04 Norco Industries, Inc. Jack with urethane brake
CN1256921C (zh) * 2003-05-13 2006-05-24 怡凡得股份有限公司 轮椅结构
US7198452B2 (en) * 2004-04-08 2007-04-03 Ocenco, Inc. Bar stock loading table and apparatus
EP1740309B1 (fr) 2004-04-22 2008-10-08 Reinhard Rüter Maschinenbau Moulin a cylindres
CN201228214Y (zh) * 2008-06-22 2009-04-29 竺浩飞 车用电动千斤顶
DE102011107786A1 (de) * 2010-11-03 2012-05-03 Sms Meer Gmbh Walzwerk, Walzgerüst sowie Verfahren zum Wechsel von Walzgerüsten in einem Walzwerk
DE102011121495B3 (de) * 2011-12-17 2013-05-08 Khd Humboldt Wedag Gmbh Mahlwalze mit angeschraubter Welle
US8973856B2 (en) * 2012-05-11 2015-03-10 Metso Minerals Industries, Inc. Handling apparatus and methods for handling a roller of a roller crusher
CN103640526A (zh) * 2013-12-10 2014-03-19 宁波市鄞州启久信息科技有限公司 车用轮椅升降机的载台收摺装置
CN105110235B (zh) * 2015-08-24 2017-10-24 浙江立福达机械股份有限公司 一种轮胎抬升装置

Also Published As

Publication number Publication date
US11834310B2 (en) 2023-12-05
EP3408029B1 (fr) 2020-10-28
CN108778514A (zh) 2018-11-09
DK3408029T3 (da) 2021-01-18
WO2017129764A1 (fr) 2017-08-03
CN108778514B (zh) 2021-10-19
ES2837143T3 (es) 2021-06-29
US20190119082A1 (en) 2019-04-25
BR112018015292A2 (pt) 2018-12-18

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