WO2005039859A1 - Zahnradpumpe - Google Patents

Zahnradpumpe Download PDF

Info

Publication number
WO2005039859A1
WO2005039859A1 PCT/EP2004/011789 EP2004011789W WO2005039859A1 WO 2005039859 A1 WO2005039859 A1 WO 2005039859A1 EP 2004011789 W EP2004011789 W EP 2004011789W WO 2005039859 A1 WO2005039859 A1 WO 2005039859A1
Authority
WO
WIPO (PCT)
Prior art keywords
gear
housing
gear pump
gears
input
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.)
Ceased
Application number
PCT/EP2004/011789
Other languages
German (de)
English (en)
French (fr)
Inventor
Reinhard Uphus
Olaf Skibba
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.)
VMI AZ Extrusion GmbH
KraussMaffei Extrusion GmbH
Original Assignee
Berstorff GmbH
VMI AZ Extrusion 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 Berstorff GmbH, VMI AZ Extrusion GmbH filed Critical Berstorff GmbH
Priority to CN2004800311931A priority Critical patent/CN1878652B/zh
Priority to EP04790614A priority patent/EP1677965B1/de
Priority to DE502004002648T priority patent/DE502004002648D1/de
Priority to JP2006536027A priority patent/JP4610564B2/ja
Priority to CA002543145A priority patent/CA2543145A1/en
Priority to US10/576,809 priority patent/US7354188B2/en
Publication of WO2005039859A1 publication Critical patent/WO2005039859A1/de
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C2/14—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
    • F04C2/16—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
    • F04C2/165—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type having more than two rotary pistons with parallel axes
    • 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
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/365—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using pumps, e.g. piston pumps
    • B29C48/37—Gear pumps
    • 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
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/375—Plasticisers, homogenisers or feeders comprising two or more stages
    • 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
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/375—Plasticisers, homogenisers or feeders comprising two or more stages
    • B29C48/387—Plasticisers, homogenisers or feeders comprising two or more stages using a screw extruder and a gear pump
    • 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
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • B29C48/397—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using a single 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
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
    • B29C48/435—Sub-screws
    • 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
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/465—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using rollers
    • B29C48/467—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using rollers using single rollers, e.g. provided with protrusions, closely surrounded by a housing with movement of the material in the axial direction
    • B29C48/468—Cavity transfer mixing devices, i.e. a roller and surrounding barrel both provided with cavities; Barrels and rollers therefor
    • 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
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/505—Screws
    • B29C48/585—Screws provided with gears interacting with the flow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C13/00—Adaptations of machines or pumps for special use, e.g. for extremely high pressures
    • F04C13/001—Pumps for particular liquids
    • F04C13/002—Pumps for particular liquids for homogeneous viscous liquids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C2/14—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
    • 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
    • B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material

Definitions

  • the invention relates to a gear pump, which is used to promote highly viscous materials such.
  • B. rubber mixtures is suitable.
  • Gear pumps enable a high outlet pressure with a low material load.
  • the gear stage is often used in combination with an extruder screw.
  • DE 100 49 730 A1 shows such a gear pump, in which the material is fed via an input worm to a gear stage with a planetary gear.
  • the planetary gear has a ring gear fixed to the housing and four planet gears which are rotatably mounted on a planet carrier.
  • the planet carrier is in turn rotatably mounted in the ring gear and has four partition walls which extend radially from a central base body to the toothing of the ring gear and which form a suction chamber element narrowing in the conveying direction and a pressure chamber element increasing in the conveying direction.
  • EP 0 642 913 B1 shows a single-shaft worm with a gear pump that has two intermeshing gear wheels, one of which is plugged onto the worm shaft.
  • the gears are fixed to the housing, with the bearing points being lubricated by the highly viscous material being conveyed.
  • the pump housing is positively connected to the worm housing and consists of two eight-shaped sealing disks, which connect flush to the end faces of the two gear wheels and are provided with openings for the passage of the worm shaft and the axis of the counter gear.
  • To the Sealing plates or on the screw housing at the level of the sealing plates each have a product passage window open to the screw chamber.
  • Such a gear pump enables the shaft gear to be driven via the worm shaft and the counter gear to be mounted on the housing.
  • the self-cleaning effect is low.
  • WO 00/53390 A1 shows a similar gear pump, in which material is fed to two intermeshing gear wheels in the radial direction and is removed via an extruder screw connected to one of the gear wheels.
  • a transfer mix area is provided in an initial area of the extruder screw, in which the cross section of a gear formed in the extruder housing, which runs helically and in the opposite direction to the helix of the screw shaft, in favor of the enlarging screw shaft chamber.
  • Such a transfer mix area causes the highly viscous material to be mixed in addition to the conveying effect.
  • the material is fed into the gear of the transfer mix area from a common outlet of the intermeshing gearwheels and transferred into the enlarging worm shaft chamber.
  • this requires a radial feed of the material to be transported. Furthermore, insufficient self-cleaning can be achieved.
  • the invention has for its object to provide improvements over known gear pumps and in particular to enable good self-cleaning and low-wear and low-maintenance storage.
  • an at least three-stage gear pump with a feed and output worm stage and a middle gear stage is therefore provided.
  • the middle gear stage enables a high delivery rate and setting accuracy and prevents pressure fluctuations in the input from kicking back to the output stage.
  • the gear stage according to the invention has planet gears fixed to the housing and a sun gear which is rotationally fixed to the worm shafts.
  • the planet gears fixed to the housing can be stored in the housing with little maintenance and wear, in particular with roller bearings.
  • a mix is achieved in addition to the conveyance through transfer mix areas in the entrance and exit extruder.
  • the aisles can be connected via connecting channels which extend essentially in the circumferential direction.
  • Figure 1 is a perspective view of a gear pump according to the invention with a sectioned housing.
  • Fig. 2 is a representation corresponding to FIG. 1 as a look through
  • a gear pump 1 has a housing 2 with a first housing part 2a, a middle second housing part 2b and a third housing part 2c.
  • the gear pump 1 is divided into an input extruder 6, a gear stage 7 and an output extruder 9 in the conveying direction F.
  • a continuous housing bore 10 is formed in the housing 2, into which an input worm shaft 12 is placed.
  • a sun gear 14 of the gear stage 7 is placed on the input worm shaft 12 and engages with four planet gears 16.
  • the planet wheels 16 are mounted with their axes 17 fixed to the housing in roller bearings 18.
  • the roller bearings 18 are advantageously used in the first housing part 2a or third housing part 2c.
  • An output worm shaft 20 is in turn rotationally rigidly connected to the sun gear 14 and the input worm shaft 12.
  • transfer mix areas 22 and 25 adjacent to the gear stage 7 are formed in both the input extruder 6 and the output extruder 9.
  • four gears 23 and 26 extend in the opposite direction to the inclination of the coils 27 and 29 of the worm shafts 12, 20 towards the gear stage 7 and end in peripheral areas 28 of the sun gear 14 between the planet gears 16.
  • the gear depth is reduced the input worm shaft 12 and the output worm shaft 20 towards the gear stage 7 with a simultaneously increasing cross section of the gears 23 and 26.
  • the number of gears 23, 26 corresponds here to the number of planet gears 16, with each feed gear 23 the material being conveyed directly in front of a planet gear 16 issues.
  • the material is conveyed in the circumferential direction in the second housing part 2b and upon engagement of the toothing of the planet gear 16 in the toothing of the Sun gear 14 is output to a discharging gear 26 of the transfer mix area 25 of the output extruder 9.
  • the teeth of the sun gear 14 and the planet gears 16 can, as shown, be helical teeth; In principle, straight gears and, if necessary, arrow gears can also be used for transport.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
  • Reciprocating Pumps (AREA)
PCT/EP2004/011789 2003-10-22 2004-10-19 Zahnradpumpe Ceased WO2005039859A1 (de)

Priority Applications (6)

Application Number Priority Date Filing Date Title
CN2004800311931A CN1878652B (zh) 2003-10-22 2004-10-19 齿轮泵
EP04790614A EP1677965B1 (de) 2003-10-22 2004-10-19 Zahnradpumpe
DE502004002648T DE502004002648D1 (de) 2003-10-22 2004-10-19 Zahnradpumpe
JP2006536027A JP4610564B2 (ja) 2003-10-22 2004-10-19 歯車ポンプ
CA002543145A CA2543145A1 (en) 2003-10-22 2004-10-19 Gear pump
US10/576,809 US7354188B2 (en) 2003-10-22 2004-10-19 Gear pump having input and output screw shafts with a decreasing flight depth toward a gear section in transfer mix areas

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10348985A DE10348985B3 (de) 2003-10-22 2003-10-22 Zahnradpumpe
DE10348985.1 2003-10-22

Publications (1)

Publication Number Publication Date
WO2005039859A1 true WO2005039859A1 (de) 2005-05-06

Family

ID=34442170

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2004/011789 Ceased WO2005039859A1 (de) 2003-10-22 2004-10-19 Zahnradpumpe

Country Status (10)

Country Link
US (1) US7354188B2 (https=)
EP (1) EP1677965B1 (https=)
JP (1) JP4610564B2 (https=)
KR (1) KR100872610B1 (https=)
CN (1) CN1878652B (https=)
CA (1) CA2543145A1 (https=)
DE (2) DE10348985B3 (https=)
ES (1) ES2277297T3 (https=)
RU (1) RU2320482C2 (https=)
WO (1) WO2005039859A1 (https=)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7354188B2 (en) * 2003-10-22 2008-04-08 Berstorff Gmbh Gear pump having input and output screw shafts with a decreasing flight depth toward a gear section in transfer mix areas

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JP4462938B2 (ja) * 2004-01-19 2010-05-12 株式会社ブリヂストン ギアポンプ付押出機
CA2461269A1 (en) * 2004-03-16 2005-09-16 Plastiques Gyf Ltee Bladeless mixer
DE102007007824B4 (de) * 2007-02-16 2012-10-25 Vmi - Az Extrusion Gmbh Extruder
DE102008023674B4 (de) 2008-05-15 2012-03-22 Ab Skf Schmiermittelversorgungsvorrichtung
CN101585227B (zh) * 2008-05-23 2011-04-20 上海龙山凤机器制造有限公司 行星螺杆流涎挤出机
DE102008061327A1 (de) * 2008-12-11 2010-06-17 Vmi - Az Extrusion Gmbh Extruderanordnung
CN102039659B (zh) * 2009-10-15 2013-03-13 煌明机器工业股份有限公司 齿轮泵胶料过滤压出机
US9701081B2 (en) * 2009-12-23 2017-07-11 The Goodyear Tire & Rubber Company Method for forming stratified rubber article with variable cure rate
FR3013762B1 (fr) * 2013-11-27 2017-07-21 Inergy Automotive Systems Res (Societe Anonyme) Pompe pour additif
CN104454516B (zh) * 2014-11-20 2017-01-11 大连华工创新科技股份有限公司 齿轮泵和螺杆泵组合供胶装置
DE102017111275B4 (de) * 2017-05-23 2020-02-13 Gneuss Gmbh Extruderschnecke für einen Mehrschneckenextruder für die Kunststoffextrusion und Mehrschneckenextruder
CN112026116B (zh) * 2020-09-04 2022-04-15 宁波海洲机械有限公司 一种pet专用的注射结构
EP3974151A1 (de) * 2020-09-28 2022-03-30 Feddem GmbH & Co. KG Einrichtung und verfahren zur steuerung der zufuhr von polymerschmelze zu einer kunststoffverarbeitungsmaschine
US11162218B1 (en) * 2020-09-30 2021-11-02 Robert Clayton Biomass pulp digester

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DE10348985B3 (de) 2005-05-19
EP1677965B1 (de) 2007-01-10
US20070237023A1 (en) 2007-10-11
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CA2543145A1 (en) 2005-05-06
JP4610564B2 (ja) 2011-01-12
DE502004002648D1 (de) 2007-02-22
RU2320482C2 (ru) 2008-03-27
US7354188B2 (en) 2008-04-08
CN1878652A (zh) 2006-12-13
RU2006117358A (ru) 2007-12-10
EP1677965A1 (de) 2006-07-12
KR100872610B1 (ko) 2008-12-09
CN1878652B (zh) 2010-12-08
JP2007508965A (ja) 2007-04-12
KR20060110300A (ko) 2006-10-24

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