EP3575001B3 - Walzenpakete für vermahlungsvorrichtungen, vermahlungsvorrichtungen und verfahren - Google Patents

Walzenpakete für vermahlungsvorrichtungen, vermahlungsvorrichtungen und verfahren Download PDF

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Publication number
EP3575001B3
EP3575001B3 EP18174570.4A EP18174570A EP3575001B3 EP 3575001 B3 EP3575001 B3 EP 3575001B3 EP 18174570 A EP18174570 A EP 18174570A EP 3575001 B3 EP3575001 B3 EP 3575001B3
Authority
EP
European Patent Office
Prior art keywords
roll
roll assembly
roller
rotation
bearing
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.)
Active
Application number
EP18174570.4A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3575001A1 (de
EP3575001B1 (de
Inventor
Philippe HOLENSTEIN
Lukas STUDERUS
Daniel Rickenbach
Daniel Mark
Heribert Weber
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
Priority to EP19184069.3A priority Critical patent/EP3597300B1/de
Application filed by Buehler AG filed Critical Buehler AG
Priority to ES19184071T priority patent/ES2831502T3/es
Priority to ES18174570T priority patent/ES2829098T7/es
Priority to EP18174570.4A priority patent/EP3575001B3/de
Priority to EP19184071.9A priority patent/EP3597301B1/de
Priority to AU2019275986A priority patent/AU2019275986B2/en
Priority to JP2020566760A priority patent/JP6974634B2/ja
Priority to CA3189974A priority patent/CA3189974A1/en
Priority to CA3189961A priority patent/CA3189961A1/en
Priority to US17/058,892 priority patent/US11266993B2/en
Priority to CN202111314021.7A priority patent/CN114011508B/zh
Priority to PCT/EP2019/063716 priority patent/WO2019229014A2/de
Priority to KR1020207037489A priority patent/KR102321211B1/ko
Priority to CA3101679A priority patent/CA3101679C/en
Priority to CN201980046429.5A priority patent/CN112423888B/zh
Priority to BR112020023619-5A priority patent/BR112020023619B1/pt
Priority to RU2020142853A priority patent/RU2754042C1/ru
Priority to KR1020217035029A priority patent/KR102602490B1/ko
Priority to CN202111314110.1A priority patent/CN114011509B/zh
Priority to KR1020217035023A priority patent/KR102600876B1/ko
Priority to MX2020012808A priority patent/MX2020012808A/es
Publication of EP3575001A1 publication Critical patent/EP3575001A1/de
Publication of EP3575001B1 publication Critical patent/EP3575001B1/de
Priority to MX2021014077A priority patent/MX2021014077A/es
Priority to MX2021014078A priority patent/MX2021014078A/es
Priority to JP2021180440A priority patent/JP7147034B2/ja
Priority to JP2021180441A priority patent/JP7250888B2/ja
Priority to AU2022200349A priority patent/AU2022200349B2/en
Priority to AU2022200350A priority patent/AU2022200350B2/en
Priority to US17/686,541 priority patent/US20220184627A1/en
Priority to US17/686,544 priority patent/US11925940B2/en
Application granted granted Critical
Publication of EP3575001B3 publication Critical patent/EP3575001B3/de
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
    • 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
    • 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
    • B02C4/06—Crushing or disintegrating by roller mills with two or more rollers specially adapted for milling grain
    • 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
    • B02C4/32—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
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G1/00—Controlling members, e.g. knobs or handles; Assemblies or arrangements thereof; Indicating position of controlling members
    • G05G1/015—Arrangements for indicating the position of a controlling member
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G1/00—Controlling members, e.g. knobs or handles; Assemblies or arrangements thereof; Indicating position of controlling members
    • G05G1/08—Controlling members for hand actuation by rotary movement, e.g. hand wheels
    • G05G1/10—Details, e.g. of discs, knobs, wheels or handles

Definitions

  • the present invention relates to roll packs for grinding devices, to grinding devices and to methods for determining the radial force acting between the rolls of a roll pack.
  • grinding devices are used for a large number of industrial applications, with which particulate material to be ground is ground. These include, for example, milling roller mills, grist malt mills, feed mills and coffee mills.
  • Such grinding devices contain one or more roller packs, each with at least two rollers.
  • the rollers can be held by a respective bearing body.
  • a grinding gap is formed between the rollers, which can be adjusted in many roller stacks, for example by the bearing bodies being adjustable relative to one another.
  • the known roller packs are essentially constructed according to the same principle: the width of the grinding gap is reduced by moving the movably mounted roller to an operating gap by a mechanical, pneumatic or electromechanical drive, i. H. "indented".
  • the operating gap can then be adjusted further during operation, for example manually or by motor.
  • Roll packs have a certain rigidity, which is determined by the dependency of the radial force acting between the rolls and the width of the grinding gap can be characterized.
  • This rigidity is made up of the rigidities of the rolls, the roller bearings and the remaining components of the roll pack.
  • the positions of the rollers are therefore dependent on the forces prevailing in the grinding gap.
  • the radial forces lead to a widening of the grinding gap. As long as the forces are constant, this can be corrected during operation and then has no negative impact.
  • the forces in the grinding gap are very variable for regrind, which is difficult to draw in between the rollers.
  • the rollers are pushed apart. If no material to be ground is drawn in for a short time, the rollers touch. In such a situation, the gap stiffness has a major impact on the behavior and properties of the regrind.
  • a first object of the invention is to eliminate the disadvantages of the known roll packs.
  • roller packs are to be provided in which the width of the grinding gap remains as constant as possible in order to be able to produce ground material with properties that are as homogeneous as possible.
  • a roller pack for a grinding device which has a first roller, which is held by at least one first bearing body, and a second roller, which is held by at least one second bearing body. contains.
  • the first bearing body and the second bearing body can be adjusted relative to one another in such a way that a grinding gap formed between the first roller and the second roller can be adjusted.
  • the second bearing body can be pivotally supported on the first bearing body.
  • the first bearing body and the second bearing body can be pretensioned against one another by means of a tensioning device in such a way that that the first roller and the second roller are pressed towards each other.
  • the first bearing body has at least one first stop body with a first stop surface and the second bearing body has at least one second stop body with a second stop surface, the stop surfaces being designed and arranged or can be arranged on the bearing bodies in such a way that contact of the stop surfaces counteracts contact between the rollers.
  • counteracting is not necessarily understood to mean that contact between the rollers is completely prevented; such contact is also permitted within the scope of the present invention if the grinding gap widths are very small.
  • the first stop body can be rotated about a first axis of rotation.
  • the first abutment surface is formed by a peripheral surface of the first abutment body that is eccentric with respect to the first axis of rotation, in such a way that the rotational position of the first abutment body determines the minimum width of the milling gap.
  • the peripheral surface of the first stop body is referred to here and below as eccentric if it is not rotationally symmetrical with respect to the first axis of rotation, i.e. if it is caused by a rotation of the first stop body about the first axis of rotation by at least an angle that is greater than 0° and less than 360° is not converted into itself.
  • the properties of the ground material can be set precisely, such as starch damage, water absorption and above all the particle size distribution of flour (especially if the gap occupancy and thus the gap force varies due to a fluctuation in the mass flow fed to the grinding device).
  • the pretensioning force exerted by the clamping device between the stop bodies should be greater than the maximum expected force between the stop bodies, which is due to the forces prevailing in the grinding gap.
  • the clamping device can be part of the roller pack. However, it is preferred if the clamping device is part of a machine stand of the grinding device and the roller assembly has a coupling device for detachable coupling to the clamping device. This facilitates the assembly and disassembly of the roller pack. Through this coupling, the tensioning device of the machine stand can cause the pretensioning of the bearing bodies of the roll pack.
  • the coupling device can be arranged on one of the bearing bodies.
  • the peripheral surface of the first stop body can be cylindrical with respect to the first axis of rotation.
  • the circumferential surface can have the shape of a spiral, at least in sections.
  • a spiral means that the distance between the peripheral surface and the first axis of rotation increases or decreases as a function of the angle.
  • the spiral is preferably an Archimedean spiral in which the distance depends linearly on the angle.
  • the second stop body can be rotated about a second axis of rotation parallel to the first axis of rotation, and the second stop surface can be rotated by a relative to the second Axis of rotation formed rotationally symmetrical peripheral surface of the second stop body. Because when the first stop body is rotated in order to adjust the width of the grinding gap, the peripheral surfaces of the two stop bodies can roll against one another, as a result of which there is significantly less friction and consequently the adjustment is facilitated. This is important in the context of the present invention, since the stop bodies are preferably pressed against one another with a high degree of prestress.
  • first axis of rotation of the first stop body and/or the second axis of rotation of the second stop body is arranged to be displaceable, in particular in a direction perpendicular to the first axis of rotation. While turning the first stop body causes a fine adjustment of the milling gap, a coarse adjustment of the milling gap can be achieved by moving at least one of the stop bodies.
  • the roller assembly has a handwheel that can be rotated about a handwheel axis of rotation and is coupled to the first stop body via a handwheel gear such that turning the handwheel causes the first stop body to rotate.
  • a gear can be selected in such a way that a comparatively small torque on the hand wheel is translated into a large torque on the first stop body.
  • the handwheel gear should preferably have the highest possible efficiency.
  • a small gear play is also advantageous in order to enable the most precise possible position display on the hand wheel and the most precise possible position of the first stop body. All of this is important within the scope of the present invention, since the stop bodies are preferably pressed against one another with a high degree of pretension.
  • the hand wheel gear has a plurality of gear inputs, in particular a first gear input for the Hand wheel and a second gear input for motorized adjustability.
  • the invention also includes a method for operating a roll pack as described above.
  • the method includes a step in which the first bearing body and the second bearing body are pretensioned against one another by means of the tensioning device in such a way that the first roller and the second roller are pressed towards one another.
  • the method can include a further step in which the first stop body is rotated about a first axis of rotation in order to set the minimum width of the grinding gap.
  • the roll pack has a force measuring device that contains a first sensor for determining a first force with which the first bearing body and the second bearing body are prestressed against one another, and a second sensor for determining a second force between the first stop body and the second stop body acts.
  • One or both sensors can be force sensors for directly determining the forces.
  • at least one of the two sensors can also be designed for indirectly determining the forces, for example as a pressure sensor with which a pressure prevailing in a cylinder (in particular in a bellows cylinder explained below) can be determined, from which the associated force can then be determined can.
  • the force acting between the rollers can be calculated from the two forces determined directly or indirectly by the sensors.
  • the first sensor can be integrated in the clamping device, for example.
  • the second sensor can be arranged, for example, on the second stop body.
  • the invention also includes a method for determining the radial force acting between the rolls of such a roll stack.
  • the method includes a step in which the force acting between the rolls is calculated from the forces determined by the sensors.
  • Position displays are used in the prior art in order to display the position of a handwheel as mentioned above in the simplest possible way (without electronic elements such as gap sensors or encoders).
  • the position of the hand wheel is referenced by turning the position indicator. This means that the basic state can easily be found again if the grinding gap needs to be adjusted.
  • the position indicator is accommodated in the hand wheel and, in the prior art, is clamped by a radial adjusting screw and is thus secured against twisting or slipping out.
  • Another variant is axial clamping to the rear.
  • the vibrations that occur during grinding operation can significantly affect the position display.
  • Oil-filled position indicators are more robust in this regard; However, the clamping of the position indicator is even more critical: if the position indicator is not tightly clamped, it will come loose; if it is too tight, it can break. Attempts have already been made to eliminate this problem with special screws. However, such a special screw can get lost. If it is replaced with an ordinary screw, leakage may occur. Another disadvantage is that a tool is required for referencing and that the screws are small and often difficult to access.
  • a roller pack for a grinding device which has a first roller and a second roller and a Contains handwheel, by means of which a grinding gap formed between the first roller and the second roller can be adjusted, which is a roller stack as described above.
  • the roller assembly has a position indicator for indicating a position of the handwheel and the position indicator contains a position indicator housing and an indicator element that can be moved along the axis of rotation of the handwheel relative to the position indicator housing and is prestressed by means of a position indicator spring in the direction of the axis of rotation of the handwheel against the position indicator housing or can be preloaded so that it is secured in a holding position by contact with the position indicator housing against rotation about the handwheel axis of rotation and can only be rotated about the handwheel axis of rotation when the pretension caused by the position indicator spring is overcome.
  • the indicator element and the position indicator housing have contact surfaces that allow a form fit in the holding position.
  • the disturbing influences of vibrations during grinding operation can be suppressed particularly effectively.
  • the set of rollers can have an integrated roller device with at least one roller, which is arranged or can be arranged on the roller pack in such a way that the roller pack with the at least one roller can be placed on a horizontal base and moved thereon.
  • a bearing cap of the roller bearing supporting the roller stub can have on its inside a guide channel for lubricant which runs around the roller stub and is connected to an outlet opening through which lubricant can escape from the guide channel.
  • a collecting device for collecting the lubricant for example a collecting container, can be arranged below the outlet opening.
  • the rollers are often cambered.
  • the crowning can be adjusted.
  • a manipulated variable results in addition to the gap adjustment in order to influence the grinding over the roller length and to achieve more uniform grinding.
  • the first roller is held by two first bearing bodies
  • the second roller is held by two second bearing bodies and the first bearing bodies independently of one another are adjustable and / or the second bearing body are independently adjustable.
  • this can be achieved in that the second bearing body is pivotably supported on the first bearing body via a pivot pin and the pivot pin is adjustable relative to the first bearing body, for example in the vertical direction.
  • This can be achieved, for example, by the first bearing body having a wedge which is designed and arranged in such a way that a displacement of the wedge in a first direction relative to the first bearing body causes a displacement of the pivot pin in a second direction, which is different from the first direction, relative to the causes first bearing body.
  • the second bearing body can also be adjustable relative to the first bearing body with the aid of an eccentric.
  • the roll packs according to the invention are particularly advantageous in connection with a device as described in the international patent application PCT/EP2018/061793 disclosed gear.
  • the present invention therefore includes that the roll pack also contains a gear which includes a bearing housing in which an input shaft, a first output shaft and a second output shaft are accommodated, the input shaft and the first output shaft perpendicular to one another and the first output shaft and the second output shaft are arranged parallel to one another, the input shaft and the first output shaft are operatively connected to one another via a pair of bevel gears, the first output shaft and the second output shaft are operatively connected to one another via a torque transmission arrangement, the first output shaft is coupled to the first roller and the second output shaft is coupled to it the second roller is coupled.
  • a gear which includes a bearing housing in which an input shaft, a first output shaft and a second output shaft are accommodated, the input shaft and the first output shaft perpendicular to one another and the first output shaft and the second output shaft are arranged parallel to one another, the input shaft and the first output shaft are operatively connected to one another via a pair of bevel gears, the first output shaft and the second output shaft are operatively connected
  • a further aspect of the invention is a grinding device, for example a milling roller mill, a grist malt mill, a feed grinder or a coffee grinder.
  • the grinding device contains a machine stand and at least one set of rollers as described above, which is designed according to one of the preceding claims and is used or can be used in the machine stand. This results in the advantages already explained above for the roller stack for the grinding device.
  • the machine stand has a clamping device and the roll assembly has a coupling device for detachable coupling to the clamping device. This facilitates namely the assembly and disassembly of the roll pack.
  • the tensioning device can have a cylinder, which is preferably designed as a bellows cylinder. It is particularly preferred if the bellows cylinder is coupled to a vent valve. In this way, in the event of an overload (e.g. when a foreign body enters the grinding gap), relief can be achieved by the pressure in the bellows cylinder being released by opening the vent valve.
  • the vent valve should be dimensioned accordingly for rapid relief.
  • the tensioning device can also have at least one spring which is pretensioned and in particular is connected in series with the cylinder.
  • the preloaded spring can be a known disc spring assembly.
  • the tensioning device can contain a tie rod, a tie bushing pivotably mounted at a first end of the tie rod, a tie rod partially accommodated in the tie bushing and pretensioned by a spring, and the cylinder which is coupled to a second end of the tie rod.
  • the tie rod can be coupled to a coupling device of the roller pack arranged on the second bearing body.
  • the tie rod can are supported in the mounted state of the roll pack in a support point located between its ends on the bearing body.
  • the tie rod By activating the cylinder, the second end of the tie rod can be pressed against the first bearing body and supported thereon, as a result of which the overall torque acting on the roll pack can be reduced.
  • the tie rod can be swiveled around the support point and thus pull on the tie bush and the tie rod. In this way, the first bearing body and the second bearing body can be prestressed against one another in such a way that the first roller and the second roller are pressed towards one another.
  • rollers of a grinding device have to be exchanged for inspection purposes.
  • the rolls can be removed one at a time, or the entire pack can be removed.
  • the rollers can be mounted on the grinding surfaces, on the bearing bodies or on the roller stubs.
  • lifting takes place using hydraulic lifting tables and then rolling out.
  • rollers are first mounted, and then the roller pack is raised by lowering the rollers and then rolled out on the rollers.
  • chain hoists For hanging up on the roller stubs, these can be lifted with chain hoists and the chain hoists can then be moved in rails.
  • a horizontal recording on the roll stubs is also possible by attaching rollers to them and moving them in rails.
  • the document EP 1 201 308 A1 also discloses a roller pack with integrated rollers, which can be placed down by means of an eccentric in order to be able to raise the roller pack.
  • rollers must first be installed or at least adjusted in a preparatory step for unrolling.
  • a grinding device in particular a milling roller mill, which contains a machine frame and at least one roller pack with a first roller and a second roller, which is used or can be used in the machine frame, the roller pack being is as described above.
  • the set of rollers has an integrated rolling device with at least one roller, which is arranged or can be arranged on the set of rollers in such a way that the set of rollers with the at least one roller can be placed on a horizontal base and moved thereon.
  • the machine stand has at least one rail on which the at least one roller of the roller pack can be moved during assembly and/or disassembly of the roller pack.
  • the set of rollers has at least one contact surface
  • the machine stand has at least one counter-contact surface.
  • the contact surface and the counter-contact surface are matched to one another and to the at least one rail in such a way that the at least one roller of the roller stack does not rest on the rail when the roller stack is in a mounting position due to a positive fit between the contact surface and the counter-contact surface.
  • the package is not raised during disassembly, but lowered onto the rollers.
  • the rollers of the roller pack do not lie on the rail in the assembly position, which protects the rollers.
  • the figures 1 and 2 show a roller pack 10 for a milling roller mill in a side view.
  • the roller pack 10 contains a first roller 11 which is held by two first bearing bodies 13 and a second roller 12 which is held by two second bearing bodies 14 .
  • the second bearing bodies 14 are pivotably supported on the first bearing bodies 13 via pivot bolts 57 .
  • the milling roller mill 70 shown has a machine stand 71 and two roller packs 10 arranged one above the other to save space.
  • Each roller pack 10 can be driven by means of a gearbox 43, which includes a bearing housing 44, in which an input shaft (not visible here), a first output shaft 46 and a second Output shaft 47 are added.
  • the input shaft and the first output shaft 46 are perpendicular to each other, and the first output shaft 46 and the second output shaft 47 are parallel to each other.
  • the input shaft and the first output shaft 46 are operatively connected to one another via a pair of bevel gears (not shown here), and the first output shaft 46 and the second output shaft 47 are operatively connected to one another via a torque transmission arrangement, also not shown.
  • the first output shaft is coupled to the first roll 11, and the second output shaft 47 to the second roll 12.
  • the gear 43 allows the second roller 12 to be movably mounted.
  • the first bearing body 13 also has a first stop body 17, which can be rotated about a first axis of rotation A1, and has a first stop surface 18. This is formed by a circumferential surface 18 of the first stop body 17 that is eccentric with respect to the first axis of rotation A1.
  • the second bearing body 14 has a second stop body 19, which can be rotated about a second axis of rotation A2 parallel to the first axis of rotation A1, and has a second stop surface 20. This is formed by a peripheral surface 20 of the second stop body 19 that is rotationally symmetrical with respect to the second axis of rotation A2.
  • the two stop surfaces 18, 20 are designed and arranged on the bearing bodies 13, 14 in such a way that contact between the stop surfaces 18, 20 counteracts contact between the rollers 11, 12, as will be explained below.
  • FIG 1 a disengaged position of the roller pack 10 is shown, in which the stop surfaces 18, 20 are not in contact with each other.
  • the first bearing body 13 and the second bearing body 14 can be adjusted relative to one another by means of a clamping device 16, which is part of the machine stand 71 and is only partially shown here, such that a grinding gap formed between the first roller 11 and the second roller 12 can be adjusted.
  • the tensioning device 16 contains a tie rod 51, a tie rod 55 which is pivotably mounted at an upper end 67 of the tie rod 51 via a joint 54, a tie rod 52 which is partially accommodated in the tie rod 55 and is pretensioned by means of a set of disk springs 41, and a bellows cylinder 40 which is connected to a lower End 68 of the tie rod 51 is coupled and only in figure 4 is shown.
  • the pull rod 52 is coupled to the second bearing body 14 with a coupling direction 66 arranged on the second bearing body 14 .
  • the tie rod 51 is supported in a support point 75 on the first bearing body 13, as long as the roller assembly 10 is installed.
  • FIG 4 shows a side view of a milling roller mill 70 with the roller pack 10.
  • the lower end 68 of the tie rod 51 is pressed against the first bearing body 13 and supported thereon, whereby the overall torque acting on the roller pack 10 is reduced.
  • the tie rod 51 is pivoted about the support point 75 and thus pulls on the tie bushing 55 and on the tie rod 52 and thus via the coupling device 66 on the second bearing body 14.
  • the first bearing body 13 and the second bearing body 14 are prestressed against one another in such a way that that the first roller 11 and the second roller 12 are pressed towards each other.
  • the storage via the bellows cylinder 40 causes an overload protection.
  • the bellows cylinder is coupled with a sufficiently dimensioned vent valve so that the pressure in the bellows cylinder can be quickly reduced by opening the vent valve. Without opening the vent valve, there would also be an increase in force, but this would be significantly smaller than if only one spring assembly were present.
  • the first axis of rotation A1 of the first stop body 17 and the second axis of rotation A2 of the second stop body 19 can be displaced arranged in a direction perpendicular to the rotation axes A1, A2.
  • the roller stack 10 also has a handwheel 21 that can be rotated about a handwheel axis of rotation H for fine adjustment of the width of the grinding gap.
  • the handwheel 21 is an in figure 5 illustrated hand wheel gear 22 is coupled to the first stop body 17 . It is designed in such a way that turning the hand wheel 21 causes the first stop body 17 to turn. As a result, a comparatively small torque on the hand wheel 21 can be translated into a large torque on the first stop body 17 .
  • the hand wheel gear 22 has a high degree of efficiency and a small gear backlash for the purposes mentioned above.
  • the roller pack 10 also has a detailed in figure 6 Position indicator 26 shown for indicating a position of the handwheel 21.
  • the position indicator 26 contains a position indicator housing 27 and an indicator element 28 that can be moved along the handwheel axis of rotation H relative to the position indicator housing 27.
  • the indicator element 28 is by means of at least one position indicator spring 29 in the direction of the handwheel axis of rotation H against the position indicator housing 27 is pretensioned or can be pretensioned in such a way that it can be rotated about the handwheel axis of rotation H only when the pretension caused by the position indicator spring 29 is overcome. This is done by form-fitting elements 53 on the display element 28 and on the position indicator housing 27.
  • the roller assembly 10 includes a force measuring device which contains a first force sensor 24 and a second force sensor 25 .
  • the first force sensor 24 is integrated in the tensioning device 16, namely in the area of the joint 54 formed between the tie rod 51 and the tie rod 52; the second force sensor 25 is on the second Stop body 19 (see figure 7 ).
  • a first force can be determined with the first sensor 24, with which the first bearing body 13 and the second bearing body 14 are prestressed against one another, and with the second sensor 25, a second force can be determined, which acts between the first stop body 17 and the second Stop body 19 acts.
  • the force acting between the rollers 11, 12 can be calculated from these forces.
  • FIG 8 shows in detail how the second bearing bodies 14 are pivotably supported on the first bearing bodies 13 via pivot bolts 57 .
  • the first bearing body 13 each contain a wedge 39 through which an adjusting screw 56 is guided. Turning the adjusting screw 56 causes a displacement of the wedge 39 in a horizontal first direction R1 and thus a displacement of the pivot pin 57 and the second bearing body 14 in a second direction R2 vertical to the first direction R1. In this way, the second bearing bodies 14 can be adjusted individually relative to the first bearing bodies 13, which allows the roller axes to tilt.
  • the figures 9 and 10 show in detail a roller bearing 58 and its seal.
  • a roll stub 33 of the second roll 12 is supported by an inner ring 59 , a plurality of rolling elements 60 and an outer ring 61 .
  • an inner bearing cap 62 and an outer bearing cap 63 which have on their inner sides 34 the roll stub 33 circumferential grooves 64 for seals and guide grooves 35 for lubricant (not shown here).
  • Paragraphs 65 are also present, which support the slinging away of the lubricant.
  • the guide channel 35 of the outer bearing cap 63 is connected to an outlet opening 36 through which lubricant can escape from the guide channel 35 of the outer bearing cap 63 .
  • a collecting device 37 for collecting the Lubricant which is in the form of a trough 37.
  • a connecting bore not shown, between the inner space and the guide channel 35 in order to prevent over-greasing and to allow excess grease to escape through this connecting bore.
  • the roller pack 10 has an integrated rolling device 30 with rollers 31 .
  • the rollers 31 are arranged on the roller pack 10 in such a way that the roller pack 10 with the rollers 31 can be placed on a horizontal base (not shown here) and can be moved thereon.
  • the machine stand 71 of the milling roller mill 70 has according to figure 12 Rails 72 on which the rollers 31 of the roll pack 10 can be moved during assembly and/or dismantling of the roll pack 10.
  • the roll pack 10 also has front contact surfaces 76 (see FIG figure 8 ) and rear contact surfaces 42, and the machine stand 71 has corresponding mating contact surfaces 73.
  • the contact surfaces 42, 76 and the mating contact surface 73 are matched to one another and to the rails 72 in such a way that the rollers 31 in a mounting position of the roller stack 10 due to a form fit between the contact surface 42, 76 and the counter-contact surface 73 do not rest on the rail 72.
EP18174570.4A 2018-05-28 2018-05-28 Walzenpakete für vermahlungsvorrichtungen, vermahlungsvorrichtungen und verfahren Active EP3575001B3 (de)

Priority Applications (29)

Application Number Priority Date Filing Date Title
ES19184071T ES2831502T3 (es) 2018-05-28 2018-05-28 Dispositivo de trituración
ES18174570T ES2829098T7 (es) 2018-05-28 2018-05-28 Paquetes de cilindros para dispositivos de trituración, dispositivos de trituración y método
EP18174570.4A EP3575001B3 (de) 2018-05-28 2018-05-28 Walzenpakete für vermahlungsvorrichtungen, vermahlungsvorrichtungen und verfahren
EP19184071.9A EP3597301B1 (de) 2018-05-28 2018-05-28 Vermahlungsvorrichtung
EP19184069.3A EP3597300B1 (de) 2018-05-28 2018-05-28 Walzenpakete für vermahlungsvorrichtungen, vermahlungsvorrichtungen und verfahren
MX2020012808A MX2020012808A (es) 2018-05-28 2019-05-28 Grupos de rodillos para dispositivos de trituración, dispositivos de trituración y métodos.
CA3189974A CA3189974A1 (en) 2018-05-28 2019-05-28 Roller groups for grinding devices, grinding devices, and methods
CA3189961A CA3189961A1 (en) 2018-05-28 2019-05-28 Roller groups for grinding devices, grinding devices, and methods
US17/058,892 US11266993B2 (en) 2018-05-28 2019-05-28 Roller groups for grinding devices, grinding devices, and methods
CN202111314021.7A CN114011508B (zh) 2018-05-28 2019-05-28 用于碾磨设备的辊组件、碾磨设备和方法
PCT/EP2019/063716 WO2019229014A2 (de) 2018-05-28 2019-05-28 Walzenpakete für vermahlungsvorrichtungen, vermahlungsvorrichtungen und verfahren
KR1020207037489A KR102321211B1 (ko) 2018-05-28 2019-05-28 분쇄 장치용 롤 조립체, 분쇄 장치, 및 방법
CA3101679A CA3101679C (en) 2018-05-28 2019-05-28 Roller groups for grinding devices, grinding devices, and methods
CN201980046429.5A CN112423888B (zh) 2018-05-28 2019-05-28 用于碾磨设备的辊组件、碾磨设备和方法
BR112020023619-5A BR112020023619B1 (pt) 2018-05-28 2019-05-28 Conjunto de cilindros para um dispositivo de moagem, dispositivo de moagem, método para determinação de força radial e método para operar um conjunto de cilindros
RU2020142853A RU2754042C1 (ru) 2018-05-28 2019-05-28 Роликовые узлы для измельчающих устройств, измельчающие устройства и способы
AU2019275986A AU2019275986B2 (en) 2018-05-28 2019-05-28 Roller groups for grinding devices, grinding devices, and methods
CN202111314110.1A CN114011509B (zh) 2018-05-28 2019-05-28 用于碾磨设备的辊组件、碾磨设备和方法
KR1020217035023A KR102600876B1 (ko) 2018-05-28 2019-05-28 분쇄 장치용 롤 조립체, 분쇄 장치, 및 방법
JP2020566760A JP6974634B2 (ja) 2018-05-28 2019-05-28 粉砕装置のためのローラアセンブリ、粉砕装置、および方法
KR1020217035029A KR102602490B1 (ko) 2018-05-28 2019-05-28 분쇄 장치용 롤 조립체, 분쇄 장치, 및 방법
MX2021014077A MX2021014077A (es) 2018-05-28 2020-11-26 Grupos de rodillos para dispositivos de trituracion, dispositivos de trituracion y metodos.
MX2021014078A MX2021014078A (es) 2018-05-28 2020-11-26 Grupos de rodillos para dispositivos de trituracion, dispositivos de trituracion y metodos.
JP2021180440A JP7147034B2 (ja) 2018-05-28 2021-11-04 粉砕装置のためのローラアセンブリ、粉砕装置、および方法
JP2021180441A JP7250888B2 (ja) 2018-05-28 2021-11-04 粉砕装置のためのローラアセンブリ、粉砕装置、および方法
AU2022200349A AU2022200349B2 (en) 2018-05-28 2022-01-19 Roller groups for grinding devices, grinding devices, and methods
AU2022200350A AU2022200350B2 (en) 2018-05-28 2022-01-19 Roller groups for grinding devices, grinding devices, and methods
US17/686,541 US20220184627A1 (en) 2018-05-28 2022-03-04 Roller groups for grinding devices, grinding devices, and methods
US17/686,544 US11925940B2 (en) 2018-05-28 2022-03-04 Roller groups for grinding devices, grinding devices, and methods

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP18174570.4A EP3575001B3 (de) 2018-05-28 2018-05-28 Walzenpakete für vermahlungsvorrichtungen, vermahlungsvorrichtungen und verfahren

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EP19184069.3A Division-Into EP3597300B1 (de) 2018-05-28 2018-05-28 Walzenpakete für vermahlungsvorrichtungen, vermahlungsvorrichtungen und verfahren
EP19184069.3A Division EP3597300B1 (de) 2018-05-28 2018-05-28 Walzenpakete für vermahlungsvorrichtungen, vermahlungsvorrichtungen und verfahren
EP19184071.9A Division EP3597301B1 (de) 2018-05-28 2018-05-28 Vermahlungsvorrichtung
EP19184071.9A Division-Into EP3597301B1 (de) 2018-05-28 2018-05-28 Vermahlungsvorrichtung

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CN111729723A (zh) * 2020-07-02 2020-10-02 江西金穗丰糖业有限公司 一种用于麦芽糖制作的原料加工装置
CN112169969B (zh) * 2020-08-06 2021-10-22 宁化县腾丰香料厂 一种生物质颗粒燃料原材料生产用双层式粉碎装置
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BR112020023619B1 (pt) 2021-09-14
WO2019229014A2 (de) 2019-12-05
AU2019275986A1 (en) 2020-12-24
CA3189974A1 (en) 2019-12-05
EP3597301B1 (de) 2020-10-07
ES2831502T3 (es) 2021-06-08
CA3101679A1 (en) 2019-12-05
CA3101679C (en) 2023-12-19
JP7250888B2 (ja) 2023-04-03
WO2019229014A3 (de) 2020-01-23
CN114011509B (zh) 2023-03-21
AU2022200349B2 (en) 2023-05-11
US11925940B2 (en) 2024-03-12
CA3189961A1 (en) 2019-12-05
BR112020023619A2 (pt) 2021-02-17
KR20210006999A (ko) 2021-01-19
CN114011509A (zh) 2022-02-08
CN112423888A (zh) 2021-02-26
KR102600876B1 (ko) 2023-11-09
AU2022200349A1 (en) 2022-02-17
KR102602490B1 (ko) 2023-11-14
EP3575001A1 (de) 2019-12-04
CN114011508A (zh) 2022-02-08
JP7147034B2 (ja) 2022-10-04
RU2754042C1 (ru) 2021-08-25
JP6974634B2 (ja) 2021-12-01
CN112423888B (zh) 2022-03-25
EP3597300A1 (de) 2020-01-22
EP3575001B1 (de) 2020-08-19
US20220184628A1 (en) 2022-06-16
US20220184627A1 (en) 2022-06-16
MX2021014078A (es) 2021-12-10
EP3597301A1 (de) 2020-01-22
ES2829098T7 (es) 2023-01-16
EP3597300B1 (de) 2021-03-31
MX2020012808A (es) 2021-11-17
KR102321211B1 (ko) 2021-11-04
JP2022017487A (ja) 2022-01-25
AU2022200350B2 (en) 2023-05-25
KR20210134987A (ko) 2021-11-11
AU2019275986B2 (en) 2022-02-10
AU2022200350A1 (en) 2022-02-17
US20210245167A1 (en) 2021-08-12
ES2829098T3 (es) 2021-05-28
KR20210134811A (ko) 2021-11-10
MX2021014077A (es) 2021-12-10
JP2021519692A (ja) 2021-08-12
CN114011508B (zh) 2023-05-23
US11266993B2 (en) 2022-03-08
JP2022017488A (ja) 2022-01-25

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