EP3597300B1 - Paquet de rouleaux pour dispositifs de broyage, dispositifs de broyage et procédé - Google Patents

Paquet de rouleaux pour dispositifs de broyage, dispositifs de broyage et procédé Download PDF

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Publication number
EP3597300B1
EP3597300B1 EP19184069.3A EP19184069A EP3597300B1 EP 3597300 B1 EP3597300 B1 EP 3597300B1 EP 19184069 A EP19184069 A EP 19184069A EP 3597300 B1 EP3597300 B1 EP 3597300B1
Authority
EP
European Patent Office
Prior art keywords
roll
roller
handwheel
bearing
rotation
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
EP19184069.3A
Other languages
German (de)
English (en)
Other versions
EP3597300A1 (fr
Inventor
Phillipe 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
Application filed by Buehler AG filed Critical Buehler AG
Priority to EP19184069.3A priority Critical patent/EP3597300B1/fr
Publication of EP3597300A1 publication Critical patent/EP3597300A1/fr
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Publication of EP3597300B1 publication Critical patent/EP3597300B1/fr
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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 roller assemblies for grinding devices, to grinding devices and to methods for operating 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, which can be adjusted in many roller assemblies, for example by the bearing bodies being adjustable relative to one another.
  • roller 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, ie "engaged", by moving the movably mounted roller to an operating gap. The operating gap can then be further adapted during operation, for example manually or by motor.
  • Roll assemblies with adjustable grinding gap are in CH 300 578 and US 236 104 disclosed.
  • Roll assemblies 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.
  • a roller set for a grinding device which contains a first roller, which is held by at least one first bearing body, and a second roller, which is held by at least one second bearing body.
  • 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 pivotably supported on the first bearing body.
  • the first bearing body and the second bearing body can be arranged so that they 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 one another.
  • 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 formed in this way and on the bearing bodies are arranged or can be arranged so 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 with very small predetermined grinding gap widths.
  • the first stop body can be rotatable about a first axis of rotation.
  • the first stop surface can be 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 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 greater than 0 ° and less than 360 ° is not converted into itself.
  • the properties of the ground material can be set precisely, such as 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 tensioning device can be part of the roll assembly. However, it is preferred if the clamping device is part of a machine stand of the grinding device and the roller set has a coupling device for releasable coupling with the clamping 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 is formed by a circumferential surface of the second stop body that is rotationally symmetrical with respect to the second axis of rotation. 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 body are preferably pressed against each other with a high bias.
  • first axis of rotation of the first stop body and / or the second axis of rotation of the second stop body is arranged displaceably, in particular in a direction perpendicular to the first axis of rotation. While rotating the first stop body effects 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 roller 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 degree of 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 transmission input for motorized adjustability.
  • a method for operating a set of rolls described here includes a step in which the first bearing body and the second bearing body are preloaded against one another in this way by means of a tensioning device be that the first roller and the second roller are pressed towards each other.
  • 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 set 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 preloaded against each other, and a second sensor for determining a second force that occurs 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 to indirectly determine 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.
  • a method for determining the radial force acting between the rollers of such a roller set is also described here.
  • 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 needs to be adjusted, the basic state can be found again in a simple manner.
  • the position indicator is accommodated 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. The vibrations that occur during milling operations can, however, have a significant impact on 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 tightly 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 by 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.
  • the roller set contains a first roller and a second roller as well as a handwheel which can be rotated about a handwheel axis of rotation and by means of which a grinding gap formed between the first roller and the second roller can be adjusted.
  • a handwheel which can be rotated about a handwheel axis of rotation and by means of which a grinding gap formed between the first roller and the second roller can be adjusted.
  • it can be one as described above Trade roller pack.
  • 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 preloaded or can be preloaded against the position indicator housing by means of a position indicator spring in the direction of the handwheel axis of rotation, 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 during the grinding operation can be suppressed particularly effectively. As an alternative or in addition to the form fit, however, there can also be a force fit in the holding position.
  • the roller set can have 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.
  • 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 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 which runs around the roller stub and which is connected to an outlet opening through which the 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.
  • 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 can be adjusted independently of one another and / or the second bearing bodies can be adjusted 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 used 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 namely 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 rapid relief.
  • the tensioning device can furthermore have at least one pretensioned spring, in particular connected in series with the cylinder.
  • the pretensioned spring can for example be a disk spring assembly known per se.
  • 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 preloaded by means of 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 set arranged on the second bearing body. In the assembled state of the roll assembly, the tie rod can be in an between support its ends located support point 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, as a result of which 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 lifted by hydraulic lifting tables and then rolled out. When it is received on the bearing bodies, rollers are first mounted, and then the roller set is lifted by lowering the rollers and then rolled out on the rollers. For hanging on the roller stubs, these can be lifted with chain hoists 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 lifted.
  • rollers must first be mounted or at least adjusted in a preparatory step for rolling out.
  • lifting of the roller pack is in accordance with EP 1 201 308 A1 quite troublesome.
  • 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 inserted or can be used in the machine stand.
  • the roll package can be 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 assembly can be moved during the assembly and / or disassembly of the roll assembly.
  • 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 lifted during dismantling, but rather lowered onto the rollers.
  • the rollers of the roller pack do not rest on the rail in the assembly position, which is gentle on the rollers.
  • the Figures 1 and 2 show a roll pack 10 for a milling roll mill in a side view.
  • the roller set 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 pins 57.
  • the one in the Figures 3a to 3c Milling roller frame 70 shown has a machine stand 71 and two roller packs 10 arranged one above the other and thus space-saving.
  • 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 bevel gear pair (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 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 which can be rotated about a first axis of rotation A1 and has a first stop surface 18 the first axis of rotation A1 eccentric circumferential surface 18 of the first stop body 17 is formed.
  • the second bearing body 14 has a second stop body 19, rotatable about a second rotational axis A2 parallel to the first rotational 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 rotational 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 pivotably 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 pack 10.
  • the storage via the bellows cylinder 40 causes 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, 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 arranged displaceably, 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 Handwheel mechanism 22 shown with the first stop body 17 coupled. 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
  • the 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 that is movable along the handwheel axis of rotation H relative to the position indicator housing 27.
  • the display 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 biased or can be biased so that it can only be rotated about the handwheel axis of rotation H when the bias caused by the position indicator spring 29 is overcome. This is done by form-fit 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 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 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.
  • These forces can be used to calculate the force acting between the rollers 11, 12.
  • 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 which is vertical to the first direction R1.
  • the second bearing bodies 14 are individually adjustable relative to the first bearing bodies 13, which enables the roller axes to tilt.
  • 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 so that excess grease can escape through this connecting bore. This allows the milling roller chair 70 to be operated hygienically.
  • 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 has according to FIG Figure 12 Rails 72 on which the rollers 31 of the roll set 10 can be moved during the assembly and / or disassembly of the roll 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 matched to one another and to the rails 72 in such a way that the rollers 31 in an assembly 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.

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  • 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 (10)

  1. Jeu de cylindres (10) pour un dispositif de broyage (70), contenant un premier cylindre (11) et un deuxième cylindre (12) ainsi qu'une roue à main (21) pouvant tourner autour d'un axe de rotation de roue à main (H), au moyen de laquelle un interstice de broyage formé entre le premier cylindre (11) et le deuxième cylindre (12) peut être ajusté,
    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 (H) lorsque la précontrainte provoquée par le ressort d'affichage de position (29) est surmontée.
  2. Jeu de cylindres (10) selon la revendication 1,
    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.
  3. Jeu de cylindres (10) selon l'une quelconque des revendications précédentes,
    dans lequel le premier cylindre (11) est retenu par au moins un premier corps de palier (13) et le deuxième cylindre (12) est retenu par au moins un deuxième corps de palier (14), au moins l'un des corps de palier (13, 14) présentant 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) .
  4. 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.
  5. 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).
  6. Dispositif de broyage (70) selon la revendication 5, 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).
  7. Dispositif de broyage (70) selon la revendication 6,
    dans lequel le dispositif de serrage (16) présente un cylindre (40), en particulier un vérin (40).
  8. Dispositif de broyage (70) selon l'une quelconque des revendications 6 et 7,
    dans lequel le dispositif de serrage (16) présente au moins un ressort (41) précontraint et notamment monté en série avec le cylindre (40).
  9. Procédé pour faire fonctionner un jeu de cylindres (10) selon l'une quelconque des revendications 3 et 4, 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 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.
  10. Procédé selon la revendication 9,
    le procédé contenant une étape supplémentaire dans laquelle la roue à main (21) est tournée, de préférence autour d'un axe de rotation de roue à main (H), et de ce fait un premier corps de butée (17) accouplé à la roue à main (21) par le biais d'un engrenage de roue à main (22) est tourné autour d'un premier axe de rotation (A1) afin d'ajuster une largeur minimale de l'interstice de broyage.
EP19184069.3A 2018-05-28 2018-05-28 Paquet de rouleaux pour dispositifs de broyage, dispositifs de broyage et procédé Active EP3597300B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP19184069.3A EP3597300B1 (fr) 2018-05-28 2018-05-28 Paquet de rouleaux pour dispositifs de broyage, dispositifs de broyage et procédé

Applications Claiming Priority (2)

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
EP19184069.3A EP3597300B1 (fr) 2018-05-28 2018-05-28 Paquet de rouleaux pour dispositifs de broyage, dispositifs de broyage et procédé

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP18174570.4A Division EP3575001B3 (fr) 2018-05-28 2018-05-28 Jeux de cylindres pour dispositifs de broyage, dispositifs de broyage et procédé
EP18174570.4A Division-Into EP3575001B3 (fr) 2018-05-28 2018-05-28 Jeux de cylindres pour dispositifs de broyage, dispositifs de broyage et procédé

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EP3597300A1 EP3597300A1 (fr) 2020-01-22
EP3597300B1 true EP3597300B1 (fr) 2021-03-31

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EP18174570.4A Active EP3575001B3 (fr) 2018-05-28 2018-05-28 Jeux de cylindres pour dispositifs de broyage, dispositifs de broyage et procédé
EP19184071.9A Active EP3597301B1 (fr) 2018-05-28 2018-05-28 Dispositif de broyage

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BR (1) BR112020023619B1 (fr)
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EP4000734A1 (fr) 2020-11-20 2022-05-25 Bühler AG Moulin à cylindres permettant une collection améliorée du produit
CH720512A1 (de) 2023-02-16 2024-08-30 Swisca Ag Walzenpaket und Walzenstuhl

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KR102602490B1 (ko) 2023-11-14
AU2019275986A1 (en) 2020-12-24
US11266993B2 (en) 2022-03-08
MX2021014078A (es) 2021-12-10
KR20210134987A (ko) 2021-11-11
AU2019275986B2 (en) 2022-02-10
CN114011508A (zh) 2022-02-08
CN112423888B (zh) 2022-03-25
AU2022200349B2 (en) 2023-05-11
CA3101679C (fr) 2023-12-19
US11925940B2 (en) 2024-03-12
US20220184628A1 (en) 2022-06-16
JP2022017488A (ja) 2022-01-25
EP3597300A1 (fr) 2020-01-22
US20210245167A1 (en) 2021-08-12
ES2829098T7 (es) 2023-01-16
JP2021519692A (ja) 2021-08-12
CN114011509B (zh) 2023-03-21
WO2019229014A3 (fr) 2020-01-23
EP3575001B3 (fr) 2022-09-14
AU2022200350B2 (en) 2023-05-25
EP3575001A1 (fr) 2019-12-04
WO2019229014A2 (fr) 2019-12-05
KR20210134811A (ko) 2021-11-10
CA3101679A1 (fr) 2019-12-05
CA3189961A1 (fr) 2019-12-05
AU2022200350A1 (en) 2022-02-17
MX2021014077A (es) 2021-12-10
CN114011508B (zh) 2023-05-23
JP7250888B2 (ja) 2023-04-03
CN114011509A (zh) 2022-02-08
KR102321211B1 (ko) 2021-11-04
CA3189974A1 (fr) 2019-12-05
MX2020012808A (es) 2021-11-17
AU2022200349A1 (en) 2022-02-17
JP7147034B2 (ja) 2022-10-04
RU2754042C1 (ru) 2021-08-25
KR102600876B1 (ko) 2023-11-09
ES2829098T3 (es) 2021-05-28
EP3597301B1 (fr) 2020-10-07
EP3575001B1 (fr) 2020-08-19
BR112020023619A2 (pt) 2021-02-17
JP6974634B2 (ja) 2021-12-01
EP3597301A1 (fr) 2020-01-22
US11998928B2 (en) 2024-06-04
ES2831502T3 (es) 2021-06-08
BR112020023619B1 (pt) 2021-09-14
US20220184627A1 (en) 2022-06-16
KR20210006999A (ko) 2021-01-19
CN112423888A (zh) 2021-02-26

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