EP3597299A1 - Groupe de rouleaux, dispositif de broyage et procédé de réglage de la fente de broyage d'un dispositif de broyage - Google Patents

Groupe de rouleaux, dispositif de broyage et procédé de réglage de la fente de broyage d'un dispositif de broyage Download PDF

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Publication number
EP3597299A1
EP3597299A1 EP18184772.4A EP18184772A EP3597299A1 EP 3597299 A1 EP3597299 A1 EP 3597299A1 EP 18184772 A EP18184772 A EP 18184772A EP 3597299 A1 EP3597299 A1 EP 3597299A1
Authority
EP
European Patent Office
Prior art keywords
roller
bearing body
amplifier
contact surface
axial direction
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
EP18184772.4A
Other languages
German (de)
English (en)
Other versions
EP3597299B1 (fr
Inventor
Daniel Fischer
Daniel Rickenbach
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
Priority to EP18184772.4A priority Critical patent/EP3597299B1/fr
Priority to PCT/EP2019/068427 priority patent/WO2020016060A1/fr
Priority to CN201980048038.7A priority patent/CN112437697B/zh
Publication of EP3597299A1 publication Critical patent/EP3597299A1/fr
Application granted granted Critical
Publication of EP3597299B1 publication Critical patent/EP3597299B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B02C4/00—Crushing or disintegrating by roller mills
    • B02C4/28—Details
    • B02C4/32—Adjusting, applying pressure to, or controlling the distance between, milling members
    • B02C4/38—Adjusting, applying pressure to, or controlling the distance between, milling members in grain mills
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
    • B02C17/18—Details
    • B02C17/1805—Monitoring devices for tumbling mills
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
    • B02C17/18—Details
    • B02C17/22—Lining for containers
    • 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
    • B02C4/32—Adjusting, applying pressure to, or controlling the distance between, milling members
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C2210/00—Codes relating to different types of disintegrating devices
    • B02C2210/01—Indication of wear on beaters, knives, rollers, anvils, linings and the like

Definitions

  • the present invention relates to a roller package, a grinding device and a method for adjusting the grinding gap of a grinding device.
  • grinding devices are used for a large number of industrial applications, with which particulate ground material is ground. These include, for example, mill rollers, malt grist mills, feed mills and coffee grinders. Grinding devices of this type contain one or more roll packs, each with at least two rolls, which are held by bearing bodies. A grinding gap is formed between the rollers and can be adjusted in many roller packages, for example in that the bearing bodies are adjustable relative to one another.
  • the known roller packs are constructed essentially according to the same principle: by means of an actuating device that is driven mechanically, pneumatically or electromechanically, for example, the width of the grinding gap is reduced to an operating gap by moving the movably mounted roller, that is, “engaged".
  • the grinding gap should also be adjustable by means of the adjusting device during operation; this is called “fine tuning”. After reworking the grinding rollers, they have to be moved closer together; this is achieved with a "rough setting”.
  • Actuators for setting grinding gaps are for example in EP 0 734 770 .
  • a roller package for a grinding device which contains a first roller, which is held by at least one first bearing body, and a second roller, which is held by at least a second bearing body.
  • the first bearing body and the second bearing body can be adjusted relative to one another by means of an adjusting device such that a grinding gap formed between the first roller and the second roller is adjustable.
  • the contact surfaces are matched to one another such that movement of the first amplifier element in the axial direction causes movement of the second amplifier element in the transverse direction and this causes movement of the output element in the axial direction.
  • a roller package with such a power amplifier enables a particularly effective and at the same time space-saving increase in the force required for setting the grinding gap.
  • a linear dependence of the position of the output element on that of the input element can be achieved, which simplifies the setting.
  • the power amplifier can be manufactured with only a few components and at low cost.
  • the input member and the output member are arranged coaxially with one another. This can be implemented particularly easily with the construction of the power amplifier according to the invention.
  • first bearing body is immobile in relation to a machine stand of the grinding device can be stored and the second bearing body can be moved, in particular pivoted, relative to the machine stand, and if at least the amplifier elements of the power amplifier are arranged or integrated in one of the first bearing bodies or one of the second bearing bodies, in particular in the first bearing body. This allows a particularly space-saving design.
  • Effective power amplification can be achieved if the at least one first contact surface and the at least one second contact surface run at a first angle to the axial direction which is in the range from 10 ° to 45 °, preferably from 15 ° to 20 °.
  • the first and / or the second contact surfaces can be flat, for example. There may also be a plurality of first contact surfaces, each of which is arranged flat but not necessarily parallel to one another. Furthermore, there can be a plurality of second contact surfaces, which are each arranged flat but not necessarily parallel to one another.
  • the first and / or the second contact surfaces can also be designed in the shape of a cone. For example, the first contact surface can form an outer cone and the second contact surface can form an inner cone or vice versa.
  • the third contact surface and the fourth contact surface run at a second angle to the axial direction, which is in the range from 45 ° to 80 °, preferably from 50 ° to 70 °.
  • the third and / or the fourth contact surfaces can be flat, for example. There can also be a plurality of third contact surfaces, each of which is arranged flat but not necessarily parallel to one another. Furthermore, there can be a plurality of fourth contact surfaces, which are each arranged flat but not necessarily parallel to one another.
  • the third and / or the fourth contact surfaces can also be formed in the shape of a cone. So can the third Contact surface form an outer cone and the fourth contact surface form an inner cone or vice versa.
  • the third amplifier element can at least partially geometrically enclose the first amplifier element, whereby a further reduction in the installation space can be achieved.
  • the input member is formed by a first rotatable spindle, which has an external thread at a first end, and the first reinforcing member has an axial bore with an internal thread, into which the external thread of the first spindle engages. If, in addition, a rotational movement of the first amplifier element is blocked, a rotational movement of the first spindle can be translated into an axial movement of the first amplifier element.
  • the first spindle has a second end opposite its first end, to which a handwheel is fastened, by means of which the first spindle can be rotated.
  • the first amplifier element and thus the output element can be moved. In this way, a fine adjustment of the grinding gap can be achieved by turning the handwheel.
  • the output element is advantageously held rotatably on the third amplifier element.
  • the third reinforcing member contains a tension plate with an opening through which the output member extends, the output member having a radial projection at a first end with which it rests on the tension plate.
  • the output member can be designed as a second spindle and, in particular at a second end opposite the first end, have an external thread, the second bearing body having a joint with an internal thread into which the external thread of the second Spindle engages. In this way, a coarse adjustment of the grinding gap can be achieved by turning the second spindle.
  • the roller set has a disengagement lever, which is pivotably mounted on the first bearing body via a first disengagement joint, and the disengagement lever has a guide surface and the power amplifier has a guide roller, on which the guide surface when the disengagement lever is pivoted about the rolls first disengagement joint along such that the power amplifier is moved relative to the first bearing body.
  • this solution with guide surface and guide roller is advantageous because it allows a much more compact design, generates a position-independent restoring torque and requires less force for disengagement;
  • Another advantage is the possibility of a guided movement for the guide roller which is given with this solution and which can be specifically specified by a contour of a further guide surface.
  • the release lever can, for example, be connected to a piston rod of a cylinder via a second release joint in such a way that the release lever can be pivoted about the first release joint by actuating the cylinder.
  • the guide surface then rolls along the guide roller, so that the power amplifier is moved relative to the first bearing body.
  • roller packs which do not have a force booster according to the first aspect of the invention - namely generally for a roll pack for a grinding device, comprising a first roll which is held by at least a first bearing body and a second roll which is held by at least one second bearing body, the first bearing body and the second bearing body being adjustable relative to one another by means of an adjusting device such that a between the first Roll and the second roller formed grinding gap is adjustable.
  • the roller set can have a release lever which is pivotably mounted on the first bearing body via a first release joint.
  • the release lever can have a guide surface, and an actuator coupled to the second bearing body can have a guide roller, on which the guide surface rolls when the release lever is pivoted about the first release joint in such a way that the actuator and thus the second bearing body are moved relative to the first bearing body.
  • the actuator can be, for example, a power amplifier according to the invention or another power amplifier, which is coupled to the second bearing body.
  • the release lever can be connected to a piston rod of a cylinder via a second release joint in such a way that the release lever can be pivoted about the first release joint by actuating the cylinder. As a result, the guide surface then rolls along the guide roller, so that the second bearing body is moved relative to the first bearing body.
  • the roller package has at least one bearing joint and at least one spring element, the bearing joint being resiliently mountable on a machine stand of the grinding device via the spring element and the second bearing body being pivotable and resiliently storable on the machine stand.
  • the spring element can be, for example, a plate spring assembly known per se.
  • Such a mechanism is also advantageous for roller packs which do not have a force booster according to the first aspect of the invention or a combination of guide surface and guide roller as described above - namely in general for a roller package for a grinding device, comprising a first roller, which is held by at least a first bearing body, and a second roller, which is held by at least a second bearing body, the first bearing body and the second bearing body being adjustable relative to one another in this way by means of an adjusting device are that a grinding gap formed between the first roller and the second roller is adjustable.
  • the roller set can have at least one bearing joint and at least one spring element, the bearing joint being resiliently mountable on a machine stand of the grinding device via the spring element and the second bearing body being pivotable and resilient on the machine stand.
  • Another aspect of the invention is a grinding device, for example a milling roller mill, a malt grist mill, a feed mill or a coffee grinder.
  • the grinding device contains a machine stand and at least one roll package, as described above, which is inserted or can be used in the machine stand. This results in the advantages already explained above for the roller package for the grinding device.
  • the invention also relates to a method for adjusting the grinding gap which is formed between the first roller and the second roller of a roller package as described above.
  • the method includes a step in which an input force is introduced into the booster by means of the input member in order to move the output member of the power booster and thus introduce an output force into the second bearing body and to adjust the first bearing body and the second bearing body relative to one another.
  • FIG. 1 shows a part of a mill roller mill 70 according to the invention with a machine stand 71 and a roll pack 10 inserted therein.
  • the roll pack 10 contains two first bearing bodies 13, which are immovably mounted relative to the machine stand 71, and two second bearing bodies 14, which are pivotably mounted about bearing joints 50. Only one of the first bearing bodies 13 and the second bearing bodies 14 can be seen in each case.
  • the bearing joints 50 are resiliently mounted on the machine stand 71 via plate spring assemblies 58. When foreign bodies penetrate into the grinding gap, the bearing joints 50 are moved relative to the machine stand 71 so that the grinding gap can widen. In this way, foreign body protection is made possible.
  • the roller package 10 further includes a first roller 11, which is held at opposite ends by the two first bearing bodies 13 and a second roller 12, which is held at opposite ends by the two second bearing bodies 14.
  • the first bearing bodies 13 and the second bearing bodies 14 can be adjusted relative to one another by means of an adjusting device 15 such that a grinding gap formed between the first roller 11 and the second roller 12 can be adjusted, as will be explained in more detail below.
  • the actuating device 15 contains one in the Figures 2 and 3 recognizable mechanical power amplifier 30.
  • This has a housing 61, a first rotatable spindle 31 with a first end 38 and a second end 41 opposite the first end, and a second rotatable spindle 32.
  • the first spindle 31 functions as an input member 31, by means of which an input force can be introduced into the booster 30.
  • a handwheel 42 is fastened to its second end 41, by means of which the first spindle 31 can be rotated.
  • the power amplifier 30 also has a first amplifier element 33 which can be displaced in an axial direction A.
  • This contains an axial bore 39 with an internal thread formed therein, which engages in an external thread formed at the first end 38 of the first spindle 31.
  • the power amplifier 30 further contains two mutually opposite second amplifier elements 35 which can be displaced in a transverse direction Q perpendicular to the axial direction A.
  • the second amplifier members 35 are supported by a support plate 43 running perpendicular to the axial direction A.
  • Each of the second amplifier elements 35 contains a second contact surface 36 with which it bears on the first contact surface 34 of the first amplifier element 33.
  • the power amplifier 30 contains a third amplifier element 47, which is displaceable in the axial direction A and has two fourth contact surfaces 46, with which it rests on the third contact surfaces 45 of the second amplifier elements 35.
  • the third amplifier element 47 is supported by the housing 61.
  • the third amplifier member 47 further includes a tension plate 37 with an opening 48 through which the second spindle 32 extends.
  • the second spindle 32 has a radial projection 40 at a first end 59, with which it rests on the tension plate 37. In this way, the second spindle 32 is rotatably held on the third amplifier member 47.
  • the second spindle 32 forms an output member 32 of the power amplifier 30, which allows the introduction of an output force into the second bearing body 14.
  • the second spindle 32 has, at a second end 60 opposite the first end 59, an external thread which engages in an internal thread of a joint 44 which is rotatably held on the second bearing body 14.
  • the contact surfaces 34, 36, 45 and 46 are matched to one another in such a way that the output force provided by the output member 32 is increased compared to the input force introduced in the input member 31: by turning the handwheel 42 about the axial direction A, the first spindle 31 and thus that on it First end 38 existing internal thread moves within the external thread of the first amplifier member 33. Since the first amplifier element 33 is blocked from rotating about the axial direction A, it moves along the axial direction A. By contacting the first contact surface 34 with the second contact surface 36, the second amplifier elements 35 are pressed outward in the transverse direction Q. Due to the contact between the third contact surfaces 45 and the fourth contact surfaces 46, the third reinforcing member 47 and thus also the second spindle 32 are pulled in the axial direction A.
  • the second bearing body 14 is then pivoted about the bearing joint 50 against the force of a spring 49 arranged between the bearing bodies 13, 14, as a result of which the grinding gap formed between the first roller 11 and the second roller is reduced becomes.
  • the power amplifier 30 thus allows a fine adjustment of the grinding gap.
  • the grinding rollers are reground or reground, their diameter is reduced, which means that the setting range of the "fine adjustment" can be too small. In this situation, the grinding gap can be set with a rough setting. This can be achieved by rotating the second spindle 32.
  • the amplifier elements 33, 35, 47 are integrated in the first bearing body 13, which ensures a space-saving design. Since the first spindle 31 and the second spindle 32 (ie the input member and the output member) are arranged coaxially to one another, disruptive torques are prevented or at least reduced.
  • the roller set 10 has a release lever 51 which is pivotally mounted on the first bearing body 13 via a first release joint 52. It is connected to a piston rod 54 of a cylinder 55 via a second release joint 53. By actuating the cylinder 55, the release lever 51 is pivoted about the first release joint 52.
  • the release lever 51 also has a guide surface 56 that rolls along a guide roller 57 of the power amplifier 30 during this movement. As a result, the booster 30 can be moved along the axial direction A. This can be necessary, for example, if no or too little regrind is fed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
  • Crushing And Grinding (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
EP18184772.4A 2018-07-20 2018-07-20 Groupe de rouleaux, dispositif de broyage et procédé de réglage de la fente de broyage d'un dispositif de broyage Active EP3597299B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP18184772.4A EP3597299B1 (fr) 2018-07-20 2018-07-20 Groupe de rouleaux, dispositif de broyage et procédé de réglage de la fente de broyage d'un dispositif de broyage
PCT/EP2019/068427 WO2020016060A1 (fr) 2018-07-20 2019-07-09 Groupe de cylindres, dispositif de broyage et procédé de réglage de la fente de broyage d'un dispositif de broyage
CN201980048038.7A CN112437697B (zh) 2018-07-20 2019-07-09 辊组件、碾磨装置和用于调节碾磨装置的碾磨间隙的方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP18184772.4A EP3597299B1 (fr) 2018-07-20 2018-07-20 Groupe de rouleaux, dispositif de broyage et procédé de réglage de la fente de broyage d'un dispositif de broyage

Publications (2)

Publication Number Publication Date
EP3597299A1 true EP3597299A1 (fr) 2020-01-22
EP3597299B1 EP3597299B1 (fr) 2021-03-03

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP18184772.4A Active EP3597299B1 (fr) 2018-07-20 2018-07-20 Groupe de rouleaux, dispositif de broyage et procédé de réglage de la fente de broyage d'un dispositif de broyage

Country Status (3)

Country Link
EP (1) EP3597299B1 (fr)
CN (1) CN112437697B (fr)
WO (1) WO2020016060A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024170649A1 (fr) 2023-02-16 2024-08-22 Swisca Ag Ensemble de rouleaux et broyeur à rouleaux

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0734770A1 (fr) 1995-03-27 1996-10-02 BERGA S.p.A. Broyeur à cylindres pour céréales comportant un dispositif à axe unique de rotation pour le réglage de l'écartement des cylindres broyeurs
EP0752272A1 (fr) 1995-07-04 1997-01-08 Satake Corporation Dispositif pour le broyage de la farine
DE19715210A1 (de) 1997-04-11 1998-10-15 Steinecker Maschf Anton Mahlspaltverstellung
WO2009068921A1 (fr) 2007-11-26 2009-06-04 Kertesz Andras Broyeur cylindrique à grande vitesse
EP2098110A2 (fr) 2008-03-04 2009-09-09 Deere & Company Assemblage de compresseur de pointeau
CN202315990U (zh) * 2011-11-22 2012-07-11 雅宝研磨材(苏州)有限公司 一种辊式解碎机

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202238162U (zh) * 2011-09-21 2012-05-30 河南中原轧辊有限公司 一种磨粉机轧距微调节器锁紧装置
KR101565773B1 (ko) * 2013-04-22 2015-11-06 한국식품연구원 비접촉 압축식 고추분쇄롤 및 이를 이용한 고추분쇄방법
CN203972010U (zh) * 2014-08-15 2014-12-03 漯河市汇丰粮机有限责任公司 一种磨粉机自动微调轧距装置
CN205095855U (zh) * 2015-09-29 2016-03-23 中粮工程装备（张家口）有限公司 磨辊轧距调节机构以及磨粉机
CN207153809U (zh) * 2017-08-11 2018-03-30 河南省中原轧辊有限责任公司 一种磨粉机轧距自动调整装置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0734770A1 (fr) 1995-03-27 1996-10-02 BERGA S.p.A. Broyeur à cylindres pour céréales comportant un dispositif à axe unique de rotation pour le réglage de l'écartement des cylindres broyeurs
EP0752272A1 (fr) 1995-07-04 1997-01-08 Satake Corporation Dispositif pour le broyage de la farine
DE69607790T2 (de) * 1995-07-04 2000-10-26 Satake Corp., Tokio/Tokyo Mahlvorrichtung für Mehl
DE19715210A1 (de) 1997-04-11 1998-10-15 Steinecker Maschf Anton Mahlspaltverstellung
WO2009068921A1 (fr) 2007-11-26 2009-06-04 Kertesz Andras Broyeur cylindrique à grande vitesse
EP2098110A2 (fr) 2008-03-04 2009-09-09 Deere & Company Assemblage de compresseur de pointeau
CN202315990U (zh) * 2011-11-22 2012-07-11 雅宝研磨材(苏州)有限公司 一种辊式解碎机

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024170649A1 (fr) 2023-02-16 2024-08-22 Swisca Ag Ensemble de rouleaux et broyeur à rouleaux

Also Published As

Publication number Publication date
CN112437697B (zh) 2022-02-15
CN112437697A (zh) 2021-03-02
WO2020016060A1 (fr) 2020-01-23
EP3597299B1 (fr) 2021-03-03

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