EP3575001B1 - Jeux de cylindres pour dispositifs de broyage, dispositifs de broyage et procédé - Google Patents

Jeux de cylindres pour dispositifs de broyage, dispositifs de broyage et procédé Download PDF

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Publication number
EP3575001B1
EP3575001B1 EP18174570.4A EP18174570A EP3575001B1 EP 3575001 B1 EP3575001 B1 EP 3575001B1 EP 18174570 A EP18174570 A EP 18174570A EP 3575001 B1 EP3575001 B1 EP 3575001B1
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)
Other versions
EP3575001B3 (fr
EP3575001A1 (fr
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 EP19184071.9A priority Critical patent/EP3597301B1/fr
Application filed by Buehler AG filed Critical Buehler AG
Priority to EP18174570.4A priority patent/EP3575001B3/fr
Priority to ES19184071T priority patent/ES2831502T3/es
Priority to EP19184069.3A priority patent/EP3597300B1/fr
Priority to ES18174570T priority patent/ES2829098T7/es
Priority to PCT/EP2019/063716 priority patent/WO2019229014A2/fr
Priority to CN202111314110.1A priority patent/CN114011509B/zh
Priority to JP2020566760A priority patent/JP6974634B2/ja
Priority to CA3101679A priority patent/CA3101679C/fr
Priority to CA3189961A priority patent/CA3189961A1/fr
Priority to CN201980046429.5A priority patent/CN112423888B/zh
Priority to CN202111314021.7A priority patent/CN114011508B/zh
Priority to RU2020142853A priority patent/RU2754042C1/ru
Priority to KR1020217035029A priority patent/KR102602490B1/ko
Priority to KR1020207037489A priority patent/KR102321211B1/ko
Priority to US17/058,892 priority patent/US11266993B2/en
Priority to AU2019275986A priority patent/AU2019275986B2/en
Priority to MX2020012808A priority patent/MX2020012808A/es
Priority to CA3189974A priority patent/CA3189974A1/fr
Priority to KR1020217035023A priority patent/KR102600876B1/ko
Priority to BR112020023619-5A priority patent/BR112020023619B1/pt
Publication of EP3575001A1 publication Critical patent/EP3575001A1/fr
Application granted granted Critical
Publication of EP3575001B1 publication Critical patent/EP3575001B1/fr
Priority to MX2021014078A priority patent/MX2021014078A/es
Priority to MX2021014077A priority patent/MX2021014077A/es
Priority to JP2021180441A priority patent/JP7250888B2/ja
Priority to JP2021180440A priority patent/JP7147034B2/ja
Priority to AU2022200350A priority patent/AU2022200350B2/en
Priority to AU2022200349A priority patent/AU2022200349B2/en
Priority to US17/686,544 priority patent/US11925940B2/en
Priority to US17/686,541 priority patent/US11998928B2/en
Publication of EP3575001B3 publication Critical patent/EP3575001B3/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
    • 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 is concerned with roller assemblies for grinding devices, with grinding devices and with methods for determining the radial force acting between the rollers of a roller assembly.
  • grinding devices are used for a large number of industrial applications with which particulate grist is ground. These include, for example, milling roller mills, malt grist mills, feed mills and coffee grinders. Such grinding devices contain one or more sets of rollers, each with at least two rollers. The rollers can be held by a respective bearing body. A grinding gap is formed between the rollers and can be adjusted in many roller packs, for example by the bearing bodies being adjustable relative to one another.
  • the known roll packs are essentially constructed according to the same principle: By means of a mechanical, pneumatic or electromechanical drive, the width of the grinding gap is reduced by moving the movably mounted roll to an operating gap, i.e. H. "indented". The operating gap can then be further adapted during operation, for example manually or by motor.
  • Roll stacks have a certain rigidity, which can be characterized by the dependence of the radial force acting between the rolls and the width of the grinding gap.
  • This rigidity is made up of the rigidity of the rollers, the roller bearings and the remaining components of the roller set.
  • the positions of the rollers are therefore dependent on the forces prevailing in the grinding gap. Mainly 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 influence.
  • the forces in the grinding gap are very variable. If the grist passes the grinding gap, the rollers are pushed apart. If no regrind is drawn in for a short time, the rollers touch. In such a situation, the stiffness of the gap has a major influence on the behavior and properties of the regrind.
  • roll 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 the most homogeneous properties possible.
  • a roller set 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 are adjustable 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 pivotably supported on the first bearing body.
  • the first bearing body and the second bearing body can be prestressed against one another by means of a clamping device in such a way 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, wherein the stop surfaces are designed and arranged or can be arranged on the bearing bodies such that contact of the stop surfaces counteracts contact of the rollers.
  • counteraction does not necessarily mean that contact between the rollers is completely prevented; Such contact is also permitted within the scope of the present invention for very small predetermined grinding gap widths.
  • the first stop body can be rotated about a first axis of rotation.
  • the first stop surface is formed by a circumferential surface of the first stop body which is eccentric with respect to the first axis of rotation, specifically in such a way that the rotational position of the first stop body determines the minimum width of the grinding gap.
  • the circumferential surface of the first stop body is referred to as eccentric here and below 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 greater than 0 ° and less than 360 ° is not converted into itself.
  • the properties of the ground material can be set precisely, for example the starch damage, the water absorption and, above all, the particle size distribution of flour (especially if the gap occupancy and thus the splitting force varies due to a fluctuation in the mass flow supplied to the grinding device).
  • the prestressing force prevailing by the clamping device between the stop bodies should be greater than the maximum expected force between the stop bodies, which results from the forces prevailing in the grinding gap.
  • the tensioning device can be part of the roll assembly. However, it is preferred if the tensioning device is part of a machine stand of the grinding device and the roller set has a coupling device for releasable coupling with the tensioning device. This facilitates the assembly and disassembly of the roller pack. This coupling enables the clamping device of the machine stand to preload the bearing bodies of the roll assembly.
  • the coupling device can be arranged on one of the bearing bodies.
  • the circumferential surface of the first stop body can be cylindrical with respect to the first axis of rotation.
  • the circumferential surface can for example have the shape of a spiral, at least in sections.
  • a spiral is understood to mean that the distance between the circumferential 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 by one relative to the second Axis of rotation rotationally symmetrical circumferential surface of the second stop body is formed. 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, which results in significantly less friction and consequently the adjustment is made easier. This is important in the context of the present invention, since the stop bodies are preferably pressed against one another with a high preload.
  • 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 rotating the first stop body causes a fine adjustment of the grinding gap, a rough adjustment of the grinding gap can be achieved by moving at least one of the stop bodies.
  • the roll package has a handwheel which can be rotated about a handwheel axis of rotation and which is coupled to the first stop body via a handwheel transmission in such a way that turning the handwheel causes the first stop body to rotate.
  • a transmission can be selected in such a way that a comparatively small torque on the handwheel is translated into a large torque on the first stop body.
  • the handwheel drive should preferably have the highest possible efficiency.
  • a small gear backlash is also advantageous in order to enable the most precise possible position display on the handwheel and the most precise possible position of the first stop body. All of this is important in the context of the present invention, since the stop bodies are preferably pressed against one another with a high pretension.
  • the handwheel transmission has several transmission inputs, in particular a first transmission input for the Handwheel and a second gear input for motorized adjustability.
  • the invention also comprises a method for operating a set of rolls as described above.
  • the method includes a step in which the first bearing body and the second bearing body are preloaded against one another by means of the clamping 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 roller set has a force measuring device which contains a first sensor for determining a first force with which the first bearing body and the second bearing body are preloaded against one another, as well as 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 the direct determination of the forces.
  • at least one of the two sensors can also be designed for indirect determination of 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 for example be integrated in the clamping device.
  • the second sensor can for example be arranged on the second stop body.
  • the invention also comprises a method for determining the radial force acting between the rollers of such a roller set.
  • the method includes a step in which the force acting between the rollers is calculated from the forces determined by means of the sensors.
  • position indicators are used in the prior art. If the operating gap is set as required, the position of the handwheel is referenced by turning the position indicator. In this way, if the grinding gap is to be adjusted, the basic state can be found again in a simple manner.
  • the position indicator is received in the handwheel and, in the prior art, clamped by a radial adjusting screw and thus secured against twisting or slipping out. Another variant is axial clamping to the rear. However, the vibrations that occur during milling operations can significantly impair the position indicator.
  • 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 too weakly tensioned, it loosens, and if it is too tensioned it can break. Attempts have already been made to overcome this problem with special screws. However, such a special screw can get lost. If it is replaced with an ordinary screw, leakage can occur. Another disadvantage is that a tool is required for referencing and that the screws are small and often difficult to access.
  • a roller set for a grinding device which has a first roller and a second roller as well as a rotary shaft rotatable about a handwheel Contains hand wheel, by means of which a grinding gap formed between the first roller and the second roller can be adjusted, this being a roller set as described above.
  • the roller package has a position indicator for displaying a position of the handwheel and the position indicator contains a position indicator housing and a display element which is movable along the handwheel axis of rotation relative to the position indicator housing and which is pretensioned or biased against the position indicator housing by means of a position indicator spring in the direction of the handwheel axis of rotation It can be pre-tensioned 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 bias caused by the position indicator spring is overcome.
  • the display element and the position display housing have contact surfaces which allow a form fit in the holding position. In this way, the disruptive influences of vibrations can be particularly effectively suppressed during the grinding operation. As an alternative or in addition to the form fit, however, a force fit can also be present in the holding position.
  • the roller pack can have an integrated roller device with at least one roller, which is arranged or can be arranged on the roll set in such a way that the roll set with the at least one roller can be placed on a horizontal base and can be moved thereon.
  • rollers in roller bearings of the bearing bodies require the use of lubricants whose uncontrolled escape from the bearings should be prevented.
  • sealing systems that are robust against over-lubrication or against harsh installation conditions, but which cannot completely prevent the lubricants from escaping.
  • a bearing cover of the roller bearing supporting the roller stub can have on its inside a guide channel for lubricant that runs around the roller stub and is connected to an outlet opening through which lubricant can exit 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. However, if uniform grinding work cannot be achieved over the entire length of the roller, the crowning can be adjusted.
  • the rollers i.e. tilting the roller axes, in addition to adjusting the gap, there is a manipulated variable to influence the grinding over the length of the roller and to achieve a more even 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 are independent of one another are adjustable and / or the second bearing bodies are adjustable independently of one another.
  • this can be achieved in that the second bearing body is pivotably supported on the first bearing body via a pivot bolt and the pivot bolt is adjustable relative to the first bearing body, for example in the vertical direction.
  • the first bearing body has 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 different from the first direction relative to the first bearing body causes.
  • the second bearing body can also be adjustable relative to the first bearing body with the aid of an eccentric.
  • the roller set furthermore contains a transmission which comprises a bearing housing in which an input shaft, a first output shaft and a second output shaft are received, 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 each other, the input shaft and the first output shaft are in operative connection with each other via a bevel gear pair, the first output shaft and the second output shaft are in operative connection with each other via a torque transmission arrangement, the first output shaft is coupled to the first roller and the second output shaft with the second roller is coupled.
  • a transmission which comprises a bearing housing in which an input shaft, a first output shaft and a second output shaft are received, 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 each other, the input shaft and the first output shaft are in operative connection with each other via a bevel gear pair, the first output shaft and the second output shaft are in operative connection with each other via a torque transmission arrangement, the first output shaft
  • 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 set of rollers as described above, which is designed according to one of the preceding claims and which is inserted or can be used in the machine stand. This results in the advantages already explained above for the roller set for the grinding device.
  • the machine frame has a clamping device and the roll set has a coupling device for releasable coupling with the clamping device. This is because this facilitates the assembly and disassembly of the roller set.
  • 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 (for example when a foreign body penetrates the grinding gap), relief can be achieved by reducing the pressure in the bellows cylinder by opening the vent valve.
  • the vent valve should be dimensioned accordingly for quick relief.
  • the tensioning device can furthermore have at least one pretensioned spring, in particular connected in series with the cylinder.
  • the pretensioned spring can be a well-known disk spring package.
  • the tensioning device can contain a tie rod, a tie rod pivotably mounted at a first end of the tie rod, a tie rod partially received in the tie sleeve and pretensioned by means of a spring, and the cylinder which is coupled to a second end of the tie rod.
  • the pull rod can be coupled to a coupling device of the roller set arranged on the second bearing body.
  • the tie rod In the assembled state of the roller set, the tie rod can be supported in a support point located between its ends on the bearing body. By activating the cylinder, the second end of the tie rod can be pressed against the first bearing body and supported thereon, whereby the total torque acting on the roller set can be reduced.
  • the tie rod can be swiveled around the support point and thus pull on the tension bushing and on the tie rod. In this way, the first bearing body and the second bearing body can be preloaded 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 replaced, for example for inspection purposes.
  • the rollers can be removed one after the other, or the entire package can be removed.
  • the rollers can be accommodated on the grinding surfaces, on the bearing bodies or on the roller stubs. In the first variant, it is raised by hydraulic lifting tables and then rolled out.
  • rollers When receiving on the bearing bodies, rollers are first mounted, and then the roller set is raised by lowering the rollers and then rolled out on the rollers.
  • Chain hoists can be used to lift them for hanging on the roller stubs and the chain hoists can then be moved in rails.
  • a horizontal mounting on the roller stubs is also possible by attaching rollers to them and moving them in rails.
  • the document EP 1 201 308 A1 further discloses a roller set with integrated rollers which can be set down by means of an eccentric so that the roller set can be raised.
  • a grinding device in particular a milling roller frame, which contains a machine stand and at least one roller set with a first roller and a second roller, which is or can be used in the machine stand, the roller set being is one as described above.
  • the roller set has an integrated roller device with at least one roller which is arranged or can be arranged on the roller set in such a way that the roller set 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 roll set can be moved during the assembly and / or disassembly of the roll set.
  • the roller set has at least one contact surface
  • the machine frame has at least one counter-contact surface.
  • the contact surface and the mating 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 set does not rest on the rail in a mounting position of the roller set due to a form fit between the contact surface and the mating contact surface.
  • the package is not raised during dismantling, but rather is lowered onto the rollers.
  • the rollers of the roller pack do not rest on the rail in the assembly position, which protects the rollers.
  • the Figures 1 and 2 show a roll pack 10 for a milling roll mill in a side view.
  • the roll package 10 contains a first roll 11, which is held by two first bearing bodies 13, and a second roll 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 pins 57.
  • the one in the Figures 3a to 3c Milling roller chair 70 shown has a machine stand 71 and two roller packs 10 arranged one above the other and thus in a space-saving manner.
  • Each roller pack 10 can be driven by means of a gear 43 which comprises a bearing housing 44 in which an input shaft (not shown 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 one another, and the first output shaft 46 and the second output shaft 47 are arranged parallel to one another.
  • the input shaft and the first output shaft 46 are operatively connected to one another via a pair of bevel gears, which cannot be seen here, and the first output shaft 46 and the second output shaft 47 are operatively connected to one another via a torque transmission arrangement, which is likewise not shown.
  • the first output shaft is coupled to the first roller 11, and the second output shaft 47 to the second roller 12.
  • the gear 43 allows the second roller 12 to be movably supported.
  • the first bearing body 13 also has a first stop body 17 rotatable about a first axis of rotation A1 and having 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, rotatable about a second rotation axis A2 parallel to the first rotation axis A1, with a second stop surface 20. This is formed by a circumferential surface 20 of the second stop body 19 that is rotationally symmetrical with respect to the second rotation axis A2.
  • the two stop surfaces 18, 20 are designed and arranged on the bearing bodies 13, 14 such that contact of the stop surfaces 18, 20 counteracts contact of the rollers 11, 12, as will be explained below.
  • Figure 1 shows a disengaged position of the roller set 10, in which the stop surfaces 18, 20 are not in contact with one another.
  • a clamping device 16 which is part of the machine frame 71 and is only partially shown here, the first bearing body 13 and the second bearing body 14 can be adjusted relative to one another in such a way 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 52 pivotally mounted on an upper end 67 of the tie rod 51 via a joint 54, a tie rod 52 partially received in the tie bush 55 and pretensioned by means of a plate spring assembly 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 tie rod 52 is coupled to the second bearing body 14 by 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 set 10 is installed.
  • Figure 4 shows a side view of a milling roller frame 70 with the roller set 10.
  • the storage via the bellows cylinder 40 causes overload protection.
  • the bellows cylinder is coupled to 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, which, however, would be much smaller than if only one set of springs 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 are displaceable arranged in a direction perpendicular to the axes of rotation A1, A2.
  • the roller set 10 also has a handwheel 21 which can be rotated about a handwheel axis of rotation H.
  • the handwheel 21 is via an in Figure 5
  • the handwheel mechanism 22 shown is coupled to the first stop body 17. It is designed in such a way that turning the handwheel 21 causes the first stop body 17 to turn. As a result, a comparatively small torque on the handwheel 21 can be translated into a large torque on the first stop body 17.
  • the handwheel gear 22 has a high degree of efficiency and a small gear backlash for the purposes mentioned above.
  • the roller set 10 also has a in detail in Figure 6 Position indicator 26 shown for displaying a position of the handwheel 21.
  • the position indicator 26 contains a position indicator housing 27 and a display element 28 which is movable along the handwheel axis of rotation H relative to the position indicator housing 27 27 is preloaded or preloaded so that it can only be rotated about the handwheel axis of rotation H when the preload caused by the position indicator spring 29 is overcome. This is done by positive locking elements 53 on display element 28 and on position display housing 27.
  • the roller set 10 comprises 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 clamping 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 located 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 preloaded against each other, and with the second sensor 25 a second force can be determined, which 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 it is shown in detail how the second bearing bodies 14 are pivotably supported on the first bearing bodies 13 via pivot pins 57.
  • the first bearing bodies 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.
  • the second bearing bodies 14 can be individually adjusted relative to the first bearing bodies 13, which enables the roller axes to be tilted.
  • FIGS. 9 and 10 show in detail a roller bearing 58 and its seal.
  • a roller stub 33 of the second roller 12 is supported by an inner ring 59, a plurality of roller bodies 60 and an outer ring 61.
  • In the axial direction thereof there is an inner bearing cover 62 and an outer bearing cover 63, which have grooves 64 running around the roller stub 33 on their inner sides 34 for seals (not shown here) and guide channels 35 for lubricants.
  • the guide channel 35 of the outer bearing cover 63 is connected to an outlet opening 36 through which lubricant can exit from the guide channel 35 of the outer bearing cover 63.
  • a collecting device 37 for collecting the Lubricant which is designed in the form of a trough 37.
  • a connecting bore not shown, between the interior space and the guide channel 35 in order to prevent over-greasing and thus excess grease can escape through this connecting bore.
  • the roll package 10 has an integrated rolling device 30 with rollers 31.
  • the rollers 31 are arranged on the roller set 10 in such a way that the roller set 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 frame 70 according to FIG Figure 12 Rails 72 on which the rollers 31 of the roller set 10 can be moved during the assembly and / or disassembly of the roller set 10.
  • the roll package 10 also has front contact surfaces 76 (see Figure 8 ) and rear contact surfaces 42, and the machine frame 71 has corresponding counter-contact surfaces 73.
  • the contact surfaces 42, 76 and the counter-contact surface 73 are coordinated with one another and with the rails 72 in such a way that the rollers 31 in a mounting position of the roller set 10 due to a form fit between of the contact surface 42, 76 and the mating contact surface 73 do not rest on the rail 72.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Crushing And Grinding (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Disintegrating Or Milling (AREA)

Claims (17)

  1. Jeu de cylindres (10) pour un dispositif de broyage (70), contenant un premier cylindre (11) qui est retenu par au moins un premier corps de palier (13) et un deuxième cylindre (12) qui est retenu par au moins un deuxième corps de palier (14),
    le premier corps de palier (13) et le deuxième corps de palier (14) pouvant être déplacés l'un par rapport à l'autre de telle sorte qu'un interstice de broyage formé entre le premier cylindre (11) et le deuxième cylindre (12) puisse être ajusté,
    le premier corps de palier (13) et le deuxième corps de palier (14) pouvant être précontraints l'un contre l'autre au moyen d'un dispositif de serrage (16) de telle sorte que le premier cylindre (11) et le deuxième cylindre (12) soient pressés l'un contre l'autre,
    caractérisé en ce que
    - le premier corps de palier (13) présente au moins un premier corps de butée (17) avec une première surface de butée (18) et le deuxième corps de palier (14) présente au moins un deuxième corps de butée (19) avec une deuxième surface de butée (20),
    - les surfaces de butée (18, 20) sont réalisées et sont ou peuvent être disposées au niveau des corps de palier (13, 14) de telle sorte qu'un contact des surfaces de butée (18, 20) s'oppose à un contact des cylindres (11, 12),
    - le premier corps de butée (17) peut tourner autour d'un premier axe de rotation (A1) et la première surface de butée (18) est formée par une surface périphérique (18) du premier corps de butée (17), excentrique par rapport au premier axe de rotation (A1), de telle sorte que la position de rotation du premier corps de butée (17) définisse la largeur minimale de l'interstice de broyage.
  2. Jeu de cylindres (10) selon la revendication 1, dans lequel le deuxième corps de butée (19) peut tourner autour d'un deuxième axe de rotation (A2) parallèle au premier axe de rotation (A1) et la deuxième surface de butée (20) est formée par une surface périphérique (20) du deuxième corps de butée (19), présentant une symétrie de révolution par rapport au deuxième axe de rotation (A2).
  3. Jeu de cylindres (10) selon l'une quelconque des revendications précédentes,
    dans lequel le premier axe de rotation (A1) du premier corps de butée (17) et/ou le deuxième axe de rotation (A2) du deuxième corps de butée (19) sont disposés de manière déplaçable, en particulier dans une direction perpendiculaire au premier axe de rotation (A1).
  4. Jeu de cylindres (10) selon l'une quelconque des revendications précédentes,
    le jeu de cylindres (10) présentant une roue à main (21) pouvant tourner autour d'un axe de rotation de roue à main (H), laquelle est accouplée par le biais d'un engrenage de roue à main (22) au premier corps de butée (17) de telle sorte qu'une rotation de la roue à main (21) provoque une rotation du premier corps de butée (17) .
  5. Jeu de cylindres (10) selon l'une quelconque des revendications précédentes,
    le jeu de cylindres (10) présentant un dispositif de mesure de force qui contient :
    - un premier capteur (24) pour la détermination directe ou indirecte d'une première force avec laquelle le premier corps de palier (13) et le deuxième corps de palier (14) sont précontraints l'un contre l'autre ;
    - un deuxième capteur (25) pour la détermination directe ou indirecte d'une deuxième force qui agit entre le premier corps de butée (17) et le deuxième corps de butée (19).
  6. Jeu de cylindres (10) selon la revendication 4,
    caractérisé en ce que
    le jeu de cylindres (10) présente un affichage de position (26) pour afficher une position de la roue à main (21) et l'affichage de position (26) contient un boîtier d'affichage de position (27) et un élément d'affichage (28) déplaçable le long de l'axe de rotation de roue à main (H) par rapport au boîtier d'affichage de position (27), lequel élément d'affichage est ou peut être précontraint au moyen d'un ressort d'affichage de position (29) dans la direction de l'axe de rotation de roue à main (H) contre le boîtier d'affichage de position (27) de telle sorte qu'il puisse seulement tourner autour de l'axe de rotation de roue à main lorsque la précontrainte provoquée par le ressort d'affichage de position (29) (H) est surmontée.
  7. Jeu de cylindres (10) selon l'une quelconque des revendications précédentes,
    le jeu de cylindres (10) présentant un dispositif à rouleaux intégrés (30) avec au moins un rouleau (31) qui est ou peut être disposé au niveau du jeu de cylindres (10) de telle sorte que le jeu de cylindres (10) puisse être posé avec l'au moins un rouleau (31) sur un support horizontal et puisse être déplacé sur celui-ci.
  8. Jeu de cylindres (10) selon l'une quelconque des revendications précédentes,
    dans lequel au moins l'un des corps de palier (13, 14) présente un palier à roulement (58) qui supporte un arbre de cylindre (33) de l'un des cylindres (11, 12), un couvercle de palier (63) du palier à roulement (58) présentant, sur son côté intérieur (34), une rainure de guidage (35) pour du lubrifiant s'étendant sur la périphérie de l'arbre de cylindre (33), laquelle est connectée à une ouverture de sortie (36) à travers laquelle du lubrifiant peut sortir de la rainure de guidage (35) .
  9. Jeu de cylindres (10) selon l'une quelconque des revendications précédentes,
    dans lequel le premier cylindre (11) est retenu par deux premiers corps de palier (13), le deuxième cylindre (12) est retenu par deux deuxièmes corps de palier (14) et les premiers corps de palier (13) peuvent être déplacés indépendamment l'un de l'autre et/ou les deuxièmes corps de palier (14) peuvent être déplacés indépendamment l'un de l'autre.
  10. Dispositif de broyage (70), en particulier moulin à cylindres de minoterie (70), contenant un support de machine (71) et au moins un jeu de cylindres (10) selon l'une quelconque des revendications précédentes, qui est ou peut être inséré dans le support de machine (71).
  11. Dispositif de broyage (70) selon la revendication 10, dans lequel le support de machine (71) présente un dispositif de serrage (16) et le jeu de cylindres (10) présente un dispositif d'accouplement (66) disposé notamment au niveau du deuxième corps de palier (14) pour l'accouplement amovible du jeu de cylindres (10) avec le dispositif de serrage (16).
  12. Dispositif de broyage (70) selon l'une des revendications 10 et 11,
    dans lequel le dispositif de serrage (16) présente un cylindre (40), en particulier un vérin (40).
  13. Dispositif de broyage (70) selon l'une quelconque des revendications 10 à 12,
    dans lequel le dispositif de serrage (16) présente au moins un ressort (41) précontraint et notamment monté en série avec le cylindre (40).
  14. Dispositif de broyage (70) selon l'une quelconque des revendications 10 à 13,
    dans lequel le jeu de cylindres présente un dispositif à rouleaux intégré (30) avec au moins un rouleau (31) qui est ou peut être disposé au niveau du jeu de cylindres (10) de telle sorte que le jeu de cylindres (10) puisse être posé avec l'au moins un rouleau (31) sur un support horizontal et être déplacé sur celui-ci, et
    le support de machine (71) présente au moins un rail (72) sur lequel peut être déplacé l'au moins un rouleau (31) du jeu de cylindres (10) pendant le montage et/ou le démontage du jeu de cylindres (10), le jeu de cylindres (10) présente au moins une surface de contact (42, 76) et le support de machine (71) présente au moins une surface de contact conjuguée (73) et la surface de contact (42, 76) et la surface de contact conjuguée (73) sont adaptées l'une à l'autre et à l'au moins un rail (72) de telle sorte que l'au moins un rouleau (31) du jeu de cylindres (10), dans une position de montage du jeu de cylindres (10), ne repose pas sur le rail (72) du fait d'au moins un engagement par correspondance de formes entre l'au moins une surface de contact (42, 76) et l'au moins une surface de contact conjuguée (73).
  15. Procédé pour déterminer la force radiale agissant entre les cylindres (11, 12) d'un jeu de cylindres (10) selon la revendication 5, contenant une étape dans laquelle la force agissant entre les cylindres (11, 12) est calculée à partir des forces déterminées au moyen des capteurs (24, 25).
  16. Procédé pour faire fonctionner un jeu de cylindres (10) selon l'une quelconque des revendications 1 à 9, contenant une étape dans laquelle le premier corps de palier (13) et le deuxième corps de palier (14) sont précontraints l'un contre l'autre au moyen du dispositif de serrage (16) de telle sorte que le premier cylindre (11) et le deuxième cylindre (12) soient pressés l'un contre l'autre.
  17. Procédé selon la revendication 16,
    le procédé contenant une étape supplémentaire dans laquelle le premier corps de butée (17) est tourné autour d'un premier axe de rotation (A1) afin d'ajuster la largeur minimale de l'interstice de broyage.
EP18174570.4A 2018-05-28 2018-05-28 Jeux de cylindres pour dispositifs de broyage, dispositifs de broyage et procédé Active EP3575001B3 (fr)

Priority Applications (29)

Application Number Priority Date Filing Date Title
EP18174570.4A EP3575001B3 (fr) 2018-05-28 2018-05-28 Jeux de cylindres pour dispositifs de broyage, dispositifs de broyage et procédé
ES19184071T ES2831502T3 (es) 2018-05-28 2018-05-28 Dispositivo de trituración
EP19184069.3A EP3597300B1 (fr) 2018-05-28 2018-05-28 Paquet de rouleaux pour dispositifs de broyage, dispositifs de broyage et procédé
ES18174570T ES2829098T7 (es) 2018-05-28 2018-05-28 Paquetes de cilindros para dispositivos de trituración, dispositivos de trituración y método
EP19184071.9A EP3597301B1 (fr) 2018-05-28 2018-05-28 Dispositif de broyage
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
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
CA3101679A CA3101679C (fr) 2018-05-28 2019-05-28 Ensemble de rouleaux pour dispositifs de meulage, dispositifs de meulage et procede de meulage
CA3189961A CA3189961A1 (fr) 2018-05-28 2019-05-28 Ensemble de rouleaux pour dispositifs de meulage, dispositifs de meulage et procede de meulage
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
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
RU2020142853A RU2754042C1 (ru) 2018-05-28 2019-05-28 Роликовые узлы для измельчающих устройств, измельчающие устройства и способы
KR1020217035029A KR102602490B1 (ko) 2018-05-28 2019-05-28 분쇄 장치용 롤 조립체, 분쇄 장치, 및 방법
KR1020207037489A KR102321211B1 (ko) 2018-05-28 2019-05-28 분쇄 장치용 롤 조립체, 분쇄 장치, 및 방법
US17/058,892 US11266993B2 (en) 2018-05-28 2019-05-28 Roller groups for grinding devices, grinding devices, and methods
AU2019275986A AU2019275986B2 (en) 2018-05-28 2019-05-28 Roller groups for grinding devices, grinding devices, and methods
PCT/EP2019/063716 WO2019229014A2 (fr) 2018-05-28 2019-05-28 Ensemble de rouleaux pour dispositifs de meulage, dispositifs de meulage et procédé de meulage
CA3189974A CA3189974A1 (fr) 2018-05-28 2019-05-28 Ensemble de rouleaux pour dispositifs de meulage, dispositifs de meulage et procede de meulage
KR1020217035023A KR102600876B1 (ko) 2018-05-28 2019-05-28 분쇄 장치용 롤 조립체, 분쇄 장치, 및 방법
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
MX2020012808A MX2020012808A (es) 2018-05-28 2019-05-28 Grupos de rodillos para dispositivos de trituración, dispositivos de trituración y métodos.
MX2021014078A MX2021014078A (es) 2018-05-28 2020-11-26 Grupos de rodillos para dispositivos de trituracion, dispositivos de trituracion y metodos.
MX2021014077A MX2021014077A (es) 2018-05-28 2020-11-26 Grupos de rodillos para dispositivos de trituracion, dispositivos de trituracion y metodos.
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
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
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
US17/686,544 US11925940B2 (en) 2018-05-28 2022-03-04 Roller groups for grinding devices, grinding devices, and methods
US17/686,541 US11998928B2 (en) 2018-05-28 2022-03-04 Roller groups for grinding devices, grinding devices, and methods

Applications Claiming Priority (1)

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EP18174570.4A EP3575001B3 (fr) 2018-05-28 2018-05-28 Jeux de cylindres pour dispositifs de broyage, dispositifs de broyage et procédé

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EP19184069.3A Division EP3597300B1 (fr) 2018-05-28 2018-05-28 Paquet de rouleaux pour dispositifs de broyage, dispositifs de broyage et procédé
EP19184069.3A Division-Into EP3597300B1 (fr) 2018-05-28 2018-05-28 Paquet de rouleaux pour dispositifs de broyage, dispositifs de broyage et procédé
EP19184071.9A Division-Into EP3597301B1 (fr) 2018-05-28 2018-05-28 Dispositif de broyage
EP19184071.9A Division EP3597301B1 (fr) 2018-05-28 2018-05-28 Dispositif de broyage

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EP19184069.3A Active EP3597300B1 (fr) 2018-05-28 2018-05-28 Paquet de rouleaux pour dispositifs de broyage, dispositifs de broyage et procédé
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EP (3) EP3575001B3 (fr)
JP (3) JP6974634B2 (fr)
KR (3) KR102602490B1 (fr)
CN (3) CN114011509B (fr)
AU (3) AU2019275986B2 (fr)
BR (1) BR112020023619B1 (fr)
CA (3) CA3189974A1 (fr)
ES (2) ES2831502T3 (fr)
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CA3189974A1 (fr) 2019-12-05
CN114011508B (zh) 2023-05-23
MX2021014077A (es) 2021-12-10
EP3597300B1 (fr) 2021-03-31
US11266993B2 (en) 2022-03-08
CN114011508A (zh) 2022-02-08
CN114011509A (zh) 2022-02-08
MX2021014078A (es) 2021-12-10
EP3575001B3 (fr) 2022-09-14
AU2022200349A1 (en) 2022-02-17
AU2019275986B2 (en) 2022-02-10
BR112020023619A2 (pt) 2021-02-17
US20220184627A1 (en) 2022-06-16
KR20210134987A (ko) 2021-11-11
CA3101679A1 (fr) 2019-12-05
KR102602490B1 (ko) 2023-11-14
CA3189961A1 (fr) 2019-12-05
JP2022017488A (ja) 2022-01-25
US11998928B2 (en) 2024-06-04
MX2020012808A (es) 2021-11-17
CA3101679C (fr) 2023-12-19
AU2022200349B2 (en) 2023-05-11
US11925940B2 (en) 2024-03-12
KR102321211B1 (ko) 2021-11-04
US20220184628A1 (en) 2022-06-16
AU2022200350A1 (en) 2022-02-17
KR102600876B1 (ko) 2023-11-09
ES2829098T3 (es) 2021-05-28
AU2019275986A1 (en) 2020-12-24
CN112423888B (zh) 2022-03-25
JP2021519692A (ja) 2021-08-12
JP6974634B2 (ja) 2021-12-01
WO2019229014A2 (fr) 2019-12-05
BR112020023619B1 (pt) 2021-09-14
CN114011509B (zh) 2023-03-21
RU2754042C1 (ru) 2021-08-25
EP3597301B1 (fr) 2020-10-07
ES2831502T3 (es) 2021-06-08
EP3597301A1 (fr) 2020-01-22
AU2022200350B2 (en) 2023-05-25
WO2019229014A3 (fr) 2020-01-23
ES2829098T7 (es) 2023-01-16
KR20210006999A (ko) 2021-01-19
CN112423888A (zh) 2021-02-26
US20210245167A1 (en) 2021-08-12
EP3597300A1 (fr) 2020-01-22
JP2022017487A (ja) 2022-01-25
JP7250888B2 (ja) 2023-04-03
EP3575001A1 (fr) 2019-12-04
KR20210134811A (ko) 2021-11-10
JP7147034B2 (ja) 2022-10-04

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