WO2010109486A1 - Dispositif de sécurité dans un système de transmission de couple - Google Patents

Dispositif de sécurité dans un système de transmission de couple Download PDF

Info

Publication number
WO2010109486A1
WO2010109486A1 PCT/IN2010/000172 IN2010000172W WO2010109486A1 WO 2010109486 A1 WO2010109486 A1 WO 2010109486A1 IN 2010000172 W IN2010000172 W IN 2010000172W WO 2010109486 A1 WO2010109486 A1 WO 2010109486A1
Authority
WO
WIPO (PCT)
Prior art keywords
extruder screw
screw shaft
extruder
adaptor
torque
Prior art date
Application number
PCT/IN2010/000172
Other languages
English (en)
Inventor
Babu Padmanabhan
Arunajatai Viswanathan
Original Assignee
Steer Engineering Private Limited
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 Steer Engineering Private Limited filed Critical Steer Engineering Private Limited
Publication of WO2010109486A1 publication Critical patent/WO2010109486A1/fr

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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D9/00—Couplings with safety member for disconnecting, e.g. breaking or melting member
    • F16D9/06—Couplings with safety member for disconnecting, e.g. breaking or melting member by breaking due to shear stress
    • F16D9/08—Couplings with safety member for disconnecting, e.g. breaking or melting member by breaking due to shear stress over a single area encircling the axis of rotation, e.g. shear necks on shafts
    • 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
    • B29C48/252—Drive or actuation means; Transmission means; Screw supporting 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
    • B29C48/252—Drive or actuation means; Transmission means; Screw supporting means
    • B29C48/2522—Shaft or screw supports, e.g. 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
    • B29C48/265—Support structures or bases for apparatus, e.g. frames
    • 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
    • B29C48/266—Means for allowing relative movements between the apparatus parts, e.g. for twisting the extruded article or for moving the die along a surface to be coated
    • B29C48/2665—Means for allowing relative movements between the apparatus parts, e.g. for twisting the extruded article or for moving the die along a surface to be coated allowing small relative movement, e.g. adjustments for aligning the apparatus parts or for compensating for thermal expansion
    • 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
    • B29C48/269—Extrusion in non-steady condition, e.g. start-up or shut-down
    • 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
    • B29C48/96—Safety devices
    • B29C48/965—Personnel safety, e.g. safety for the operator
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92323—Location or phase of measurement
    • B29C2948/92485—Start-up, shut-down or parameter setting phase; Emergency shut-down; Material change; Test or laboratory equipment or studies
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92819—Location or phase of control
    • B29C2948/9298—Start-up, shut-down or parameter setting phase; Emergency shut-down; Material change; Test or laboratory equipment or studies
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
    • F16D1/10—Quick-acting couplings in which the parts are connected by simply bringing them together axially
    • F16D2001/103—Quick-acting couplings in which the parts are connected by simply bringing them together axially the torque is transmitted via splined connections

Definitions

  • the invention in general, relates to safety devices employed in torque transmission systems. More specifically, it relates to a torque transmission system for an extruder.
  • Torque transmission from one unit to another is common in mechanical systems.
  • mechanical systems experience fluctuations in load and power supply that induce high levels of stress in torque transmitting members of the mechanical systems.
  • Such high stresses may further lead to unexpected yielding or fracture of shafts that are used as torque transmitting members in the mechanical systems.
  • a shaft yields or breaks the entire mechanical system needs to be disassembled to replace the damaged shaft with a new one.
  • the extruder screw shafts are machined to specific complex profiles to meet certain requirements. These complex profiles of the extruder screw shafts demand special machining requirements resulting in high cost of manufacturing.
  • the extruder screw elements are mounted on to the extruder screw shafts.
  • the resistance to the rotation of the extruder screw shaft may increase suddenly causing possible breaking of the extruder screw elements mounted on to the extruder screw shaft.
  • These extruder screw elements are housed inside the barrel of the twin screw extruder forming the extruder processing zone. Hence, whenever an extruder screw element breaks, the components of the extruder processing zone need to be disassembled to replace the broken extruder screw element.
  • the extruder screw elements are specially designed to meet certain functional requirements such as kneading, compounding etc and special manufacturing techniques need to be adopted to machine the extruder screw elements. Hence, the cost of replacing the extruder screw elements is considerably high.
  • twin screw extruder In a twin screw extruder, two extruder screw shafts in proper orientation process the work material.
  • the torque required for processing the work material is transmitted from a motor to a gearbox and from the gearbox to the extruder screw shafts.
  • Extruder screw shafts are designed on the assumption of uniform torque distribution between the two extruder screw shafts.
  • the torque borne by each extruder screw shaft depends on the resistance it encounters.
  • torque imbalances may occur between the extruder screw shafts with one of the extruder screw shafts taking more torque than the other.
  • This uneven distribution of torque results in excessive stress levels in one of the extruder screw shafts even though the sum of the torques taken in by the extruder screw shafts is less than the maximum designed torque for the extruder shafts resulting in breaking or yielding of the extruder screw shaft.
  • a conventional torque transmitting system 100 is illustrated connecting a driving means 102 to an extruder 104.
  • the driving means 102 may be a gearbox, a motor, a turbine, an engine, a pulley, a gear train and the like. Torque is transmitted from the driving means 102 to the extruder 104 by means of a driving shaft 106, a coupler 112 and an extruder screw shaft 108.
  • Driving shaft 106 may be an output shaft of a gearbox, a motor, a turbine, an engine and the like.
  • Extruder screw shaft 108 is a driven shaft.
  • Coupler 112 is typically used as an intermediate coupling means between driving shaft 106 and extruder screw shaft 108.
  • the safety mechanism be such that minimum or no alteration to existing extruder systems is required.
  • the safety mechanism should also be such that the extruder system can function without it, if necessary.
  • Figure 1 is a schematic diagram of a conventional torque transmitting system.
  • Figure 2 depicts one end of a shaft with external splines machined on it.
  • FIG. 3 is a schematic diagram of a torque transmitting system in accordance with an embodiment of the invention.
  • FIG. 4 depicts an adaptor in accordance with an embodiment of the invention.
  • Figure 5(a) represents the front, sectional and end views of an adaptor in accordance with an embodiment of the invention.
  • Figure 5(b) represents an isometric view of an adaptor in accordance with an embodiment of the invention.
  • Figure 6 depicts the assembly of an adaptor and an extruder screw shaft in accordance with an embodiment of the invention.
  • the disclosure relates to a torque transmission system for coupling an extruder screw shaft having a critical torque level with the output shaft of a driving means, the torque transmission system comprising a coupler configured to engage with the output shaft of the driving means; and an adaptor configured to be engaged by the coupler; the adaptor further configured to engage the extruder screw shaft; the adaptor defining a pre weakened area designed to rupture at a torque level less than the critical torque of the extruder screw shaft.
  • an extruder system comprising: a barrel having a bore with an extruder screw shaft located within the bore; the extruder screw shaft having a critical torque level; a driving means for driving the extruder screw shaft located outside the barrel; the driving means including an output shaft; a torque transmission system for coupling the extruder screw shaft with the output shaft of the driving means, the torque transmission system comprising a coupler configured to engage with the output shaft of the driving means; and an adaptor configured to be engaged by the coupler; the adaptor further configured to engage the extruder screw shaft; the adaptor defining a pre weakened area designed to rupture at a torque level less than the critical torque of the extruder screw shaft.
  • a torque transmitting system 300 connects driving means 102 with an extruder 104.
  • the torque transmitting system 300 comprises of a coupler 110 and an adaptor 302.
  • the driving means 102 may be a gearbox, a motor, a turbine, an engine, a pulley, a gear train and the like.
  • the output shaft 106 of the driving means 102 is connected to an extruder screw shaft 108 of the extruder 104 by the torque transmitting system 300.
  • the output shaft 106 of the driving means 102 is connected to the coupler 110, the coupler 110 is connected to the adaptor 302, and the adaptor 302 is connected to the extruder screw shaft 108 of the extruder 104.
  • Torque is transmitted from the driving means 102 to the extruder 104 by means of driving shaft 106, coupling member 110, adaptor 302 and extruder screw shaft 108.
  • the coupler 110 is a hollow tubular member with splines on its inner surface.
  • the output shaft 106 of the driving means 102 as well as the extruder screw shaft 108 have external splines formed to engage the internal splines of the coupler.
  • Figure 2 illustrates the external splines formed on the output shaft of the driving means and the extruder screw shaft. Typically, splines on a shaft are used to transmit torque from one shaft to another shaft.
  • FIG. 4 depicts a schematic diagram of an adaptor 302 in torque transmitting system 300, according to an embodiment of the invention.
  • the adaptor 302 comprises a first end 404 that is configured to be engaged by the coupler 110 and a second end 406 that is configured to engage the extruder screw shaft 108.
  • a pre- weakened area in the form of a rupture groove 402 is provided between the first end 404 and the second end 406 of the adaptor.
  • the rupture groove 402 is designed to rupture at a torque level less than the critical torque of the extruder screw shaft 108.
  • Rupture groove 402 may be a V- groove machined around the circumference of adaptor 302.
  • Rupture groove 402 can be designed and machined on adaptor 302 by means of machining methods like turning process and the like.
  • the rupture groove 402 may be any suitable profile including but not limited to a V-groove, a U- groove or any arcuate profile.
  • the depth and dimensions of the rupture groove depend on the desired torque carrying capability of the adaptor or the rupture threshold of the adaptor. One or more of such grooves may be provided on the adaptor.
  • first end 404 of the adaptor 302 is configured to engage the coupler 110.
  • the second end 406 of the adaptor 302 is configured to engage with extruder screw shaft 108.
  • First end 404 and second end 406 are coupled to coupler 110 and extruder screw shaft 108 respectively using one of the coupling means which include but not limited to splines, glues, keyways, serrations and the like.
  • the first end 404 of the adaptor is provided with external splines that engage the internal splines of the coupler 110
  • the second end 406 of the adaptor is configured as a hollow tubular structure configured to receive the extruder screw shaft 108.
  • the hollow tubular structure of the second end 406 is provided with internal splines that engage the external splines of the extruder screw shaft 108.
  • Figure 5 (a) represents front, sectional, and end views of adaptor 302, in accordance with an embodiment of the invention while Figure 5(b) shows an isometric view of adaptor 302, according to an embodiment of the invention.
  • Figure 5(a) and Figure 5(b) shows first end 404 of adaptor 302 machined with splines.
  • the figures show second end 406 having diameter larger than the diameter of the first end 404. The larger diameter is configured to provide for the hollow tubular structure that receives the extruder screw shaft.
  • Figure 5(b) also shows a zoomed-in view of the pre- weakened area in the form of the rupture groove 402 of adaptor 302.
  • Figure 6 depicts the coupling between adaptor 302 and extruder screw shaft 108, according to an embodiment of the invention.
  • the adaptor 302 has one or more splines machined on the inner surface of its second end 406.
  • Extruder screw shaft (driven shaft) 108 has similar splines machined on its outer surface.
  • the adaptor 302 and the extruder screw shaft 108 are coupled using splines machined on their surfaces.
  • a retaining screw 602 is used to hold adaptor 302 and extruder screw shaft 108 without any axial displacement.
  • the extruder 104 may be a single screw or a twin-screw extruder.
  • the extruder may further be a co-rotating or counter rotating twin-screw extruder.
  • the extruder comprises a barrel that has a bore and the extruder screw shaft is located within the bore.
  • a driving means for driving the extruder screw shaft is typically located outside the barrel with the output shaft of the driving means connected to the extruder screw shaft to transmit torque.
  • the barrel has two parallel bores of equal diameter. The centre distance between the two bores lesser than the diameter of the bore.
  • An extruder screw shaft is located within each bore.
  • the extruder screw shafts may be configured for rotation in the same or opposite direction.
  • the torque transmission system couples at least one extruder screw shaft with the output shaft of the driving means.
  • a torque transmission system may also be used between each extruder screw shaft and the corresponding output shaft of the driving means.
  • a torque transmission system for coupling an extruder screw shaft having a critical torque level with the output shaft of a driving means, the torque transmission system comprising a coupler configured to engage with the output shaft of the driving means and an adaptor configured to be engaged by the coupler, the adaptor further configured to engage the extruder screw shaft, the adaptor defining a pre weakened area designed to rupture at a torque level less than the critical torque of the extruder screw shaft.
  • An extruder system comprising a barrel having a bore with an extruder screw shaft located within the bore, the extruder screw shaft having a critical torque level, a driving means for driving the extruder screw shaft located outside the barrel, the driving means including an output shaft, a torque transmission system for coupling the extruder screw shaft with the output shaft of the driving means, the torque transmission system comprising a coupler configured to engage with the output shaft of the driving means and an adaptor configured to be engaged by the coupler; the adaptor further configured to engage the extruder screw shaft, the adaptor defining a pre weakened area designed to rupture at a torque level less than the critical torque of the extruder screw shaft.
  • extruder system(s) wherein the barrel has two parallel bores of equal diameter, the centre distance between the two bores lesser than the diameter of the bore; an extruder screw shaft located within each bore, each extruder screw shaft having a critical torque level; the extruder screw shafts configured for rotation in the same direction and wherein the torque transmission configured to couple at least one extruder screw shaft with the output shaft of the driving means.
  • the stress concentration effect occurs at structural discontinuities in the material.
  • stress concentration takes place at these structural discontinuities.
  • the structural discontinuity is a crack on the surface of the material, the concentrated stress propagates the crack further into the material. Eventually, the material breaks due to excessive stress caused by a torque level equal to or higher than the critical torque level for the material.
  • the rupture groove 402 on the adaptor 302 is a structural discontinuity. Due to the stress concentration effect, the stress on the torque transmission system 300 gets concentrated at rupture groove 402 of adaptor 302. The rupture groove 402 of the adaptor 302 ruptures at a torque level less than the critical torque level of the extruder screw shaft 108. As a result of the stress concentration effect, fracture occurs at the rupture groove 402 at a pre-determined torque level less than the critical torque level of the extruder screw shaft 108.
  • the adaptor 302 disclosed in the invention can be employed in single screw or twin-screw extruders.
  • the single screw extruder may encounter impurities or non-uniform densities in the work material.
  • the impurities and non-uniform densities in the work material result in high resistance to rotation of the extruder screw shaft 108. Due to this sudden surge in resistance, the force applied by the extruder screw shaft 108 increases thereby increasing its toque level.
  • the output shaft 106 of the driving means as well as the extruder screw shaft is subjected to additional stresses caused by the extruder screw shaft 108, and these stresses may be greater than the threshold of the rupture groove 402. Under these circumstances, adaptor 302 coupled to the extruder screw shaft will break at rupture groove 402.
  • adaptor 302 By breaking at rupture groove 402, adaptor 302 protects the extruder screw shaft 108 and other members of the extruder from breaking. hi the case of a twin-screw extruder, the work material resists the rotation of the extruder screw shafts. Stresses are developed in the extruder screw shafts due to this resistance and these stresses are typically not uniformly distributed between the two extruder screw shafts. This uneven distribution of the stresses results in very high stress in one of the extruder screw shafts. Under these circumstances, adaptor 302 coupled to the extruder screw shaft with higher stress will break at rupture groove 402. By breaking at rupture groove 402, adaptor 302 protects the extruder screw shaft 108 and other members of the twin-screw extruder from breaking.
  • the use of a two-piece torque transmission system for coupling the shafts and providing a torque safety limit ensures that the extruder can function even if the adaptor were to fail. Moreover, the two-piece system reduces overall cost of the replaceable component without requiring any changes in existing extruder systems.

Landscapes

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

Abstract

La présente invention concerne un système de transmission de couple pour coupler un arbre à vis d'extrudeuse présentant un niveau de couple critique avec l'arbre de sortie d'un moyen d'entraînement, le système comprenant : un coupleur configuré pour venir en prise avec l'arbre de sortie du moyen d'entraînement ; et un adaptateur configuré pour être mis en prise par le coupleur, l'adaptateur étant en outre configuré pour venir en prise avec l'arbre à vis d'extrudeuse, cet adaptateur définissant une zone pré-affaiblie conçue pour se rompre à un niveau de couple inférieur au couple critique de l'arbre à vis d'extrudeuse.
PCT/IN2010/000172 2009-03-23 2010-03-23 Dispositif de sécurité dans un système de transmission de couple WO2010109486A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN641CH2009 2009-03-23
IN641/CHE/2009 2009-03-23

Publications (1)

Publication Number Publication Date
WO2010109486A1 true WO2010109486A1 (fr) 2010-09-30

Family

ID=42780225

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IN2010/000172 WO2010109486A1 (fr) 2009-03-23 2010-03-23 Dispositif de sécurité dans un système de transmission de couple

Country Status (1)

Country Link
WO (1) WO2010109486A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2889118A1 (fr) * 2013-12-26 2015-07-01 Henke Property UG (Haftungsbeschränkt) Pompe de masse fondue pour faire passer une matière plastique en fusion par un outil
EP3378624A1 (fr) 2017-03-24 2018-09-26 Veka AG Couplage de surcharge pour un extrudeur à double vis
CN108757761A (zh) * 2018-06-13 2018-11-06 中国北方发动机研究所(天津) 一种具有过载保护的高速联轴器
CN110107667A (zh) * 2019-04-28 2019-08-09 中国航发湖南动力机械研究所 涡轮发动机附件传动机构及其使用方法和涡轮发动机
CN110537011A (zh) * 2017-04-24 2019-12-03 五十铃自动车株式会社 涡轮增压器用轴以及涡轮增压器
EP4420857A1 (fr) * 2023-05-24 2024-08-28 Flender GmbH Élément de couplage pour une extrudeuse

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1776525A (en) * 1929-11-27 1930-09-23 White S Dental Mfg Co Shaft assembly
US2773369A (en) * 1954-03-09 1956-12-11 Massey Harris Ferguson Inc Torque limiting device for tractor
US3126723A (en) * 1964-03-31 Dugay
GB1045886A (en) * 1963-07-26 1966-10-19 Power Jets Res & Dev Ltd Improvements in or relating to overload torque safety devices
US3923290A (en) * 1974-05-07 1975-12-02 Robert Tillis Shear control for extruder apparatus
GB2328641B (en) * 1997-08-29 2002-06-05 Gen Electric Single screw extruder
EP2082862A1 (fr) * 2008-01-22 2009-07-29 Coperion GmbH Extrudeuse

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3126723A (en) * 1964-03-31 Dugay
US1776525A (en) * 1929-11-27 1930-09-23 White S Dental Mfg Co Shaft assembly
US2773369A (en) * 1954-03-09 1956-12-11 Massey Harris Ferguson Inc Torque limiting device for tractor
GB1045886A (en) * 1963-07-26 1966-10-19 Power Jets Res & Dev Ltd Improvements in or relating to overload torque safety devices
US3923290A (en) * 1974-05-07 1975-12-02 Robert Tillis Shear control for extruder apparatus
GB2328641B (en) * 1997-08-29 2002-06-05 Gen Electric Single screw extruder
EP2082862A1 (fr) * 2008-01-22 2009-07-29 Coperion GmbH Extrudeuse

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2889118A1 (fr) * 2013-12-26 2015-07-01 Henke Property UG (Haftungsbeschränkt) Pompe de masse fondue pour faire passer une matière plastique en fusion par un outil
US10519952B2 (en) 2013-12-26 2019-12-31 Henke Property Ug Melt pumps for pressing synthetic material through a tool
EP3378624A1 (fr) 2017-03-24 2018-09-26 Veka AG Couplage de surcharge pour un extrudeur à double vis
DE102017106454A1 (de) 2017-03-24 2018-09-27 Veka Ag Sicherheitskupplung für einen Doppelschneckenextruder
CN110537011A (zh) * 2017-04-24 2019-12-03 五十铃自动车株式会社 涡轮增压器用轴以及涡轮增压器
CN108757761A (zh) * 2018-06-13 2018-11-06 中国北方发动机研究所(天津) 一种具有过载保护的高速联轴器
CN110107667A (zh) * 2019-04-28 2019-08-09 中国航发湖南动力机械研究所 涡轮发动机附件传动机构及其使用方法和涡轮发动机
EP4420857A1 (fr) * 2023-05-24 2024-08-28 Flender GmbH Élément de couplage pour une extrudeuse

Similar Documents

Publication Publication Date Title
WO2010109486A1 (fr) Dispositif de sécurité dans un système de transmission de couple
US20080175526A1 (en) Face Spline For a Driven Wheel Hub
EP2264326A1 (fr) Dispositif de couplage détachable hydrauliquement
JPH05196049A (ja) 複合材料と金属材料のための軸継手
US8708830B2 (en) Break away spline misalignment coupling
US7086836B1 (en) Dual rate torque transmitting device for a marine propeller
US6293871B1 (en) Torsionally flexible coupling
CN105485196A (zh) 带齿轮摩擦片的扭矩限制器
RU2493449C2 (ru) Вращательное упругое соединение и способ его изготовления
RU2010136980A (ru) Устройство защиты от превышения крутящего момента и узел передачи крутящего момента
JP5138539B2 (ja) 動力伝達構造及び二軸混練押出機
US3973412A (en) Torque-limiting couplings
EP2365228B1 (fr) Connecteur d'arbre et limiteur de couple
JP6298708B2 (ja) 材料を加工するための多軸スクリュー機械
EP1970587A2 (fr) Dispositif de transmission de puissance d'un compresseur
CN211525377U (zh) 一种液压轮毂
US4311028A (en) Flexible couplings
JP2007040351A (ja) カップリング
US20040058734A1 (en) Flexible rotational drive coupling device
CN106246877B (zh) 一种柱状与板状构件的传力连接结构
CN221628685U (zh) 一种安全联轴器
RU2815589C1 (ru) Предохранительное шлицевое соединение
CA2421918C (fr) Serie de production de dispositifs adaptateurs, et dispositif adaptateur
RU2815589C9 (ru) Соединение типа "вал-втулка"
CN217814627U (zh) 弹性套柱销以及带弹性套柱销的联轴器

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 10755543

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 10755543

Country of ref document: EP

Kind code of ref document: A1