EP1177389A1 - Dispositif recepteur pour au moins un arbre monte de maniere etanche dans un carter - Google Patents

Dispositif recepteur pour au moins un arbre monte de maniere etanche dans un carter

Info

Publication number
EP1177389A1
EP1177389A1 EP00936650A EP00936650A EP1177389A1 EP 1177389 A1 EP1177389 A1 EP 1177389A1 EP 00936650 A EP00936650 A EP 00936650A EP 00936650 A EP00936650 A EP 00936650A EP 1177389 A1 EP1177389 A1 EP 1177389A1
Authority
EP
European Patent Office
Prior art keywords
shaft
housing
seal
receiving
extruder
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.)
Withdrawn
Application number
EP00936650A
Other languages
German (de)
English (en)
Inventor
Patrick Cotteverte
Christian Rohe
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1177389A1 publication Critical patent/EP1177389A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/72—Sealings
    • F16C33/74—Sealings of sliding-contact bearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/254—Sealing means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/256—Exchangeable extruder parts
    • B29C48/2561—Mounting or handling of the screw
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2322/00—Apparatus used in shaping articles

Definitions

  • the invention relates to a receiving device for at least one shaft sealingly mounted in a housing according to the preamble of claim 1.
  • the shaft designed as an extrusion screw is directly surrounded by a seal which seals the shaft against the housing wall of an extruder. This has the consequence that when removing or installing the shaft, for example when the inside of the housing has to be cleaned, the seal can be damaged or pre-damaged as a result of direct contact with the shaft.
  • the object of the invention is therefore to avoid such damage or pre-damage when removing or installing a shaft in a housing.
  • the receiving device according to the invention for at least one shaft sealingly mounted in a housing with the characterizing features of claim 1 has in contrast the advantage that the shaft is separated from the seal by a protective element, so that there is no direct contact between the shaft and the seal. This effectively prevents damage or pre-damage to the seal when removing or installing the shaft.
  • FIGs 2 and 3 the extruder of Figure 1 during the removal of the extruder screws and one
  • Sealing unit also in partially sectioned side views.
  • the extruder designated by 10 in FIG. 1 is used in the confectionery industry for processing confectionery masses.
  • the extruder 10 has a housing 11 which is sealed on one end face with a housing cover 12.
  • Two extruder screws 1, 2 arranged parallel to one another are arranged essentially inside the housing 11, the drive shafts 3, 4 of which are located on the side of the housing cover 12 facing away from the housing 11.
  • the housing cover 12 has a recess 13 in the form of a Breakthrough.
  • a unit 15, consisting of a sleeve-shaped seal housing 16, which encloses a mechanical seal 17, 18 for each extruder screw 1, 2, can be inserted in a sealing manner.
  • the seal housing 16 has circumferential collars 19 for each mechanical seal 17, 18 on its inner circumference.
  • the collars 19 are guided in circumferential annular grooves 21 of the mechanical seals 17, 18.
  • Essentially sleeve-shaped receiving shafts 25, 26 for the drive shafts 3, 4 of the extruder screws 1, 2 can be inserted into the mechanical seals 17, 18.
  • the length of the receiving shafts 25, 26 is dimensioned such that when the extruder screws 1, 2 are mounted, an axial play 22 or distance is formed between the end faces of the mechanical seals 17, 18 and the end faces 23 of the extruder screw flights (see detail in FIG. 1). This is achieved in that the receiving shafts 25, 26 protrude somewhat from the mechanical seals 17, 18.
  • the receiving shafts 25, 26 have toothings 27, 28 on their outer circumference, via which the extruder screws 1, 2 can be driven by means of a drive (not shown).
  • the extruder screws 1, 2 are axially fixed in the receiving shafts 25, 26 by means of fastening nuts 5, 6, which can be mounted on the ends of the drive shafts 3, 4 protruding from the receiving shafts 25, 26.
  • the receiving shafts 25, 26 are mounted in a frame 29, which in turn has guide eyes 30, in which guide rods 31 are guided.
  • the guide rods 31 are fastened together with an end plate 32 to the housing cover 12 of the extruder 10.
  • the unit 15 can be connected to the facing end face 34 of the frame 29 by means of screws 33.
  • the design described above causes the receiving shafts 25, 26 to be aligned with the unit 15 and the recess 13 in the housing cover 12.
  • the extruder screws 1, 2 are mechanically decoupled from the mechanical seals 17, 18, which means that there are no loads / damage to the extruder screws 1, 2 on the
  • Extruder screws 1, 2) in the guide rods 31 are moved away from the housing cover 12 of the extruder 10, the unit 15 being pulled out of the recess 13. Then the screws 33 can be loosened so that the unit 15 together with the mechanical seals 17, 18 are dismantled (FIG. 3).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

Dispositif récepteur pour au moins une vis sans fin (1, 2) placée dans un carter (11) d'une extrudeuse (10), qui comporte des arbres récepteurs (25, 26) pour les vis sans fin (1, 2). Les arbres récepteurs (25, 26) sont entourés de garnitures étanches à anneau glissant (17, 18) elles-mêmes placées dans un boîtier (16) d'étanchéité. Les arbres récepteurs (25, 26) ainsi que les garnitures étanches à anneau glissant (17, 18) et les boîtiers (16) d'étanchéité sont placés sur un support (29) et sont axialement coulissants par rapport au carter (11). Le dispositif récepteur selon la présente invention évite les dommages ou les détériorations préalables subis par les garnitures étanches à anneau glissant (17, 18) lors du montage ou du démontage des vis sans fin (1, 2) dans le carter (11).
EP00936650A 1999-05-05 2000-05-03 Dispositif recepteur pour au moins un arbre monte de maniere etanche dans un carter Withdrawn EP1177389A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19920597 1999-05-05
DE19920597A DE19920597A1 (de) 1999-05-05 1999-05-05 Aufnahmeeinrichtung für wenigstens eine in einem Gehäuse dichtend gelagerte Welle
PCT/DE2000/001364 WO2000068588A1 (fr) 1999-05-05 2000-05-03 Dispositif recepteur pour au moins un arbre monte de maniere etanche dans un carter

Publications (1)

Publication Number Publication Date
EP1177389A1 true EP1177389A1 (fr) 2002-02-06

Family

ID=7907009

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00936650A Withdrawn EP1177389A1 (fr) 1999-05-05 2000-05-03 Dispositif recepteur pour au moins un arbre monte de maniere etanche dans un carter

Country Status (4)

Country Link
US (1) US6523997B1 (fr)
EP (1) EP1177389A1 (fr)
DE (1) DE19920597A1 (fr)
WO (1) WO2000068588A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020057626A1 (en) * 2000-11-07 2002-05-16 Schafer Harold L. Upstream seal for mixer rotors
EP1454733A1 (fr) * 2003-02-01 2004-09-08 Reifenhäuser GmbH & Co. Maschinenfabrik Dispositif d'extrusion
US7121716B2 (en) * 2004-03-30 2006-10-17 Alliant Techsystems Inc. Mixing equipment sealing device
US7144131B2 (en) * 2004-09-29 2006-12-05 Advanced Optical Technologies, Llc Optical system using LED coupled with phosphor-doped reflective materials
EP2302018A1 (fr) * 2009-09-24 2011-03-30 Faramarz Bairamijamal Procédé de transport continu à sec d'un matériau devant être oxydé partiellement pour le revêtement d'un réacteur mis sous pression
JP5625444B2 (ja) * 2010-03-30 2014-11-19 住友ベークライト株式会社 混練装置および半導体封止用樹脂組成物の製造方法
FR2997314B1 (fr) * 2012-10-30 2016-01-08 Herakles Dispositif de malaxage muni d'un dispositif de maintien d'arbres
DE102015211917B3 (de) * 2015-06-26 2016-08-04 AMC Industrietechnik GmbH Stopfbuchsgehäuse, insbesondere zur Verwendung in Mehrschneckenextrudern

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1861081A (en) * 1930-05-26 1932-05-31 Westinghouse Electric & Mfg Co Ash disposal apparatus
DE1035585B (de) * 1956-06-11 1958-08-07 Stamicarbon Abscherklassierer
DE1036585B (de) * 1956-11-03 1958-08-14 Metallgesellschaft Ag Kugelgelenkartig ausgebildetes Lager fuer durch eine Behaelterwand gefuehrte Wellen
US3804423A (en) * 1971-11-16 1974-04-16 Du Pont Shaft seal throttle bushing
US4521026A (en) * 1983-09-21 1985-06-04 Rca Corporation Shaft seal
US4878677A (en) * 1988-12-15 1989-11-07 Hydrochem Developments Ltd. Shut off seal about a shaft of a device having a side entry into a tank
DE59906642D1 (de) * 1998-07-10 2003-09-25 Coperion Buss Ag Pratteln Misch- und Knetmaschine
US6164811A (en) * 1999-06-16 2000-12-26 Macro Engineering & Technology Inc. Extruder assembly with improved screw removal capability
US6390666B1 (en) * 2000-11-07 2002-05-21 Tech, Process & Engineering, Inc. Packing gland seal assembly as an upstream seal for mixer rotors

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0068588A1 *

Also Published As

Publication number Publication date
US6523997B1 (en) 2003-02-25
DE19920597A1 (de) 2000-11-09
WO2000068588A1 (fr) 2000-11-16

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