EP0250770B1 - Verfahren zum Aussenrundschleifen von Walzen - Google Patents

Verfahren zum Aussenrundschleifen von Walzen Download PDF

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Publication number
EP0250770B1
EP0250770B1 EP87106354A EP87106354A EP0250770B1 EP 0250770 B1 EP0250770 B1 EP 0250770B1 EP 87106354 A EP87106354 A EP 87106354A EP 87106354 A EP87106354 A EP 87106354A EP 0250770 B1 EP0250770 B1 EP 0250770B1
Authority
EP
European Patent Office
Prior art keywords
roll
core
casing
pressure
grinding
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.)
Expired - Lifetime
Application number
EP87106354A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0250770A3 (en
EP0250770A2 (de
Inventor
Werner Kade
Theodor Bähr
Georg Zürn
Günter Rohde
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.)
JM Voith GmbH
Original Assignee
JM Voith GmbH
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 JM Voith GmbH filed Critical JM Voith GmbH
Priority to AT87106354T priority Critical patent/ATE84252T1/de
Publication of EP0250770A2 publication Critical patent/EP0250770A2/de
Publication of EP0250770A3 publication Critical patent/EP0250770A3/de
Application granted granted Critical
Publication of EP0250770B1 publication Critical patent/EP0250770B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
    • B24B5/02—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work
    • B24B5/04—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work for grinding cylindrical surfaces externally
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G1/00—Calenders; Smoothing apparatus
    • D21G1/02—Rolls; Their bearings
    • D21G1/0206—Controlled deflection rolls
    • D21G1/0213—Controlled deflection rolls with deflection compensation means acting between the roller shell and its supporting member
    • D21G1/022—Controlled deflection rolls with deflection compensation means acting between the roller shell and its supporting member the means using fluid pressure

Definitions

  • the invention relates to a method for external cylindrical grinding of a roller according to the preamble of patent claim 1.
  • DE-PS 28 50 415 describes a so-called "floating" (floating) roller.
  • a roller shell is rotatably mounted on a roller core which is fixed per se via ball bearings at the two ends of the roller shell.
  • the roll core carries at least in a row parallel to the roll longitudinal axis substantially parallel to each other, hydraulically loadable press ram or a continuous, hydraulically loadable press ram corresponding to the length of the roll shell.
  • the press rams have pressure pockets on their surface facing the roller shell, into which hydraulic pressure medium can also be introduced, on which the roller shell then floats to a certain extent, which is of course an inaccurate expression, since essentially the roller shell is acted upon by the pressure prevailing in the pressure pockets is, for example, to be pressed against a counter roller in a certain way, which in particular is used for calenders.
  • Other facilities are possible for such a facility, such as dry presses in the paper industry.
  • the object of the invention is to compensate for this bearing error since it cannot be avoided. According to the invention, this takes place in the method for external cylindrical grinding by the features of the characterizing part of patent claim 1.
  • the method is based on grinding the assembly consisting of the roller shell and roller core including the roller bearings in the completely assembled state with the application of a certain hydraulic pressure for the pressure transmission elements, i.e. the existing wall thickness error of the bearing rings of the roller bearings is practically compensated for during the grinding process (i.e. in opposite direction and effect) transferred to the roll shell, the bearing play in the line of action of the grinding wheel being switched off, so that practically the installation conditions in the finished system (calender) are present.
  • a certain hydraulic pressure for the pressure transmission elements i.e. the existing wall thickness error of the bearing rings of the roller bearings is practically compensated for during the grinding process (i.e. in opposite direction and effect) transferred to the roll shell, the bearing play in the line of action of the grinding wheel being switched off, so that practically the installation conditions in the finished system (calender) are present.
  • a certain hydraulic pressure for the pressure transmission elements i.e. the existing wall thickness error of the bearing rings of the roller bearings is practically compensated for during the grinding process (i.
  • FIGS. 1 and 2 namely a longitudinal section in FIG. 1 and a cross section in FIG. 2, and a basic arrangement of the structural unit consisting of roller and core in FIG the grinding machine and in Figure 4 a basic sketch of the geometric relationships and the parallelogram of forces and in Fig. 5 a cross section of another roller arrangement is shown.
  • roller shell 3 which has at its ends bundles 7, which are used for storage both in operation and in the grinding machine.
  • the roller shell 3 is mounted on the roller core 2 at both ends by means of roller bearings 4, which are each designed as double roller bearings.
  • the roller core has bores or depressions 5 in a row, which serve as pressure chambers for pressure transmission elements 8, here individual press rams. Seals 9 are provided between the piston part of the ram 8 and the wall of the depression 5, respectively.
  • Pressure pockets 13 on the surface of the press rams receive pressure medium from the pressure spaces 5 in order to support the roller shell 3 during operation and also here during the grinding process; This is done, as can be seen from FIG.
  • the total wall thickness error is transferred during the grinding process from the circumferential error of the wall thickness s1 of the inner ring and that s2 of the outer ring to the wall thickness of the roll shell, seen over its circumference, in such a way that the total wall thickness changes compensate for zero at every point.
  • a gear can be present which serves to drive the roll shell 3, ie to rotate the same on the roll core 2.
  • the pressure of the hydraulic pressure medium is not chosen to be very high during the grinding process and is approximately 1.5 bar absolute.
  • the roll grinding machine 11 has bearing devices at both ends of the roll to be ground, which is then held in the bearing devices by means of bearing punches 12 and 12 ⁇ provided with bearing metal.
  • the angle b ⁇ also changes within certain limits. The hydraulic forces are then determined accordingly for the grinding process.
  • the pressure elements can, in a known manner, be formed by a continuous pressure bar, as described in DE-A 22 30 139 or DE-A 24 20 324.
  • a pressure-generating hydraulic (hydrostatic) element a pressure chamber 18 between the roll shell and roll core can be delimited by seals 17 and seal walls 16 over the load-bearing length of the roll shell (see FIG. 5 and DE-A 27 31 365 or DE-B 27 54 380).

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Crushing And Grinding (AREA)
EP87106354A 1986-07-01 1987-04-30 Verfahren zum Aussenrundschleifen von Walzen Expired - Lifetime EP0250770B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87106354T ATE84252T1 (de) 1986-07-01 1987-04-30 Verfahren zum aussenrundschleifen von walzen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863621979 DE3621979A1 (de) 1986-07-01 1986-07-01 Verfahren zum aussenrundschleifen von walzen
DE3621979 1986-07-01

Publications (3)

Publication Number Publication Date
EP0250770A2 EP0250770A2 (de) 1988-01-07
EP0250770A3 EP0250770A3 (en) 1990-04-25
EP0250770B1 true EP0250770B1 (de) 1993-01-07

Family

ID=6304099

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87106354A Expired - Lifetime EP0250770B1 (de) 1986-07-01 1987-04-30 Verfahren zum Aussenrundschleifen von Walzen

Country Status (5)

Country Link
US (1) US4800687A (enrdf_load_stackoverflow)
EP (1) EP0250770B1 (enrdf_load_stackoverflow)
AT (1) ATE84252T1 (enrdf_load_stackoverflow)
DE (1) DE3621979A1 (enrdf_load_stackoverflow)
ES (1) ES2038137T3 (enrdf_load_stackoverflow)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3907730A1 (de) * 1989-03-10 1990-09-13 Mannesmann Ag Verfahren und vorrichtung zum schleifen der arbeitswalzen eines planetenwalzwerkes
DE19854339A1 (de) * 1998-11-25 2000-06-15 Kuesters Beloit Gmbh & Co Kg Walze
CN107984314A (zh) * 2017-10-20 2018-05-04 北京首钢股份有限公司 一种磨削方法及装置

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1923146A (en) * 1931-02-25 1933-08-22 Howard B Herdeg Combination antirattle and fastening device for window sash
DE2230139B2 (de) * 1971-06-28 1980-01-31 Escher Wyss Ag, Zuerich (Schweiz) Walze mit Durchbiegungsausgleich für die Druckbehandlung von bahnförmigen Materialien
CH577598A5 (enrdf_load_stackoverflow) * 1974-04-22 1976-07-15 Escher Wyss Ag
GB1539129A (en) * 1977-04-26 1979-01-24 Kuesters E Roller
DE2731365A1 (de) * 1977-07-12 1979-01-18 Kuesters Eduard Dichtungsanordnung an einer walze
GB1574293A (en) * 1977-10-04 1980-09-03 Kuesters E Roller
DE2754380C3 (de) * 1977-12-07 1980-06-12 Kuesters, Eduard, 4150 Krefeld Walze für die Druckbehandlung von Warenbahnen
CH627243A5 (enrdf_load_stackoverflow) * 1978-03-01 1981-12-31 Escher Wyss Ag
AT367121B (de) * 1978-11-15 1982-06-11 Escher Wyss Ag Durchbiegungseinstellwalze zur druckbehandlung von materialbahnen, insbesondere papierbahnen
JPS6119551A (ja) * 1984-05-17 1986-01-28 Koyo Seiko Co Ltd 軸付きころがり軸受の外輪外周面研削装置
JPS6119552A (ja) * 1984-06-08 1986-01-28 Koyo Seiko Co Ltd ころがり軸受型ロ−ルのロ−ル外輪外周ロ−ル面研削装置
CH663744A5 (de) * 1984-09-17 1988-01-15 Rene Keller Dr Vorrichtung fuer die schleifbearbeitung der innenflaeche oder aussenflaeche eines ringfoermigen werkstueckes.

Also Published As

Publication number Publication date
DE3621979C2 (enrdf_load_stackoverflow) 1991-01-10
ATE84252T1 (de) 1993-01-15
DE3621979A1 (de) 1988-01-07
ES2038137T3 (es) 1993-07-16
US4800687A (en) 1989-01-31
EP0250770A3 (en) 1990-04-25
EP0250770A2 (de) 1988-01-07

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