JPS5527513A - Fluid bearing - Google Patents

Fluid bearing

Info

Publication number
JPS5527513A
JPS5527513A JP9867378A JP9867378A JPS5527513A JP S5527513 A JPS5527513 A JP S5527513A JP 9867378 A JP9867378 A JP 9867378A JP 9867378 A JP9867378 A JP 9867378A JP S5527513 A JPS5527513 A JP S5527513A
Authority
JP
Japan
Prior art keywords
piston shaft
screw
cylinder
chambers
portions
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.)
Granted
Application number
JP9867378A
Other languages
Japanese (ja)
Other versions
JPS5814925B2 (en
Inventor
Minoru Yoshida
Seigo Hanada
Kansaburo Kubota
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.)
Japan Steel Works Ltd
Original Assignee
Japan Steel Works Ltd
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 Japan Steel Works Ltd filed Critical Japan Steel Works Ltd
Priority to JP53098673A priority Critical patent/JPS5814925B2/en
Publication of JPS5527513A publication Critical patent/JPS5527513A/en
Publication of JPS5814925B2 publication Critical patent/JPS5814925B2/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B29C48/36—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
    • B29C48/41—Intermeshing counter-rotating screws

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

PURPOSE:To provide a fluid bearing, in which a bore is formed in the piston shaft for communicating pressurizing chambers with each other, and clearance is formed between the piston shaft and cylinder so that thrust load produced by the screw is supported by hydraulic oil having a high viscosity and axial movement of the screw can be made controllable. CONSTITUTION:piston shaft 4 connected to the gear of screw shaft consists of small-diametered portions 6 and large-diametered portions 5, so that outlet chambers 8 and pressurizing chambers 9 are formed in cylinder 7. Bore 10 is formed at the center of piston shaft 4 for communicating pressuring chambers 9 with each other. Further, clearance H is formed between cylinder 7 and portions 5, 6 of piston shaft 4 for permitting axial movement and rotation of piston shaft 4. To this bearing, oil having a high viscosity is supplied under pressure from a hydraulic unit via flow control valve to support thrust load produced by the screw.
JP53098673A 1978-08-15 1978-08-15 fluid bearing Expired JPS5814925B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53098673A JPS5814925B2 (en) 1978-08-15 1978-08-15 fluid bearing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53098673A JPS5814925B2 (en) 1978-08-15 1978-08-15 fluid bearing

Publications (2)

Publication Number Publication Date
JPS5527513A true JPS5527513A (en) 1980-02-27
JPS5814925B2 JPS5814925B2 (en) 1983-03-23

Family

ID=14226026

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53098673A Expired JPS5814925B2 (en) 1978-08-15 1978-08-15 fluid bearing

Country Status (1)

Country Link
JP (1) JPS5814925B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04129921U (en) * 1991-05-22 1992-11-30 株式会社日本製鋼所 Multistage thrust bearing device for twin screw extruder
CN106855081A (en) * 2015-12-09 2017-06-16 伦克股份有限公司 For the drive device of double screw extruder
EP3284576A4 (en) * 2015-04-15 2018-12-12 Kohei Sawa Transmission gear device to be used in multi-screw extruder or kneader

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4989032A (en) * 1972-12-29 1974-08-26
JPS5311265A (en) * 1976-07-19 1978-02-01 Masao Moriyama Thrust bearing device for extruder or other

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4989032A (en) * 1972-12-29 1974-08-26
JPS5311265A (en) * 1976-07-19 1978-02-01 Masao Moriyama Thrust bearing device for extruder or other

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04129921U (en) * 1991-05-22 1992-11-30 株式会社日本製鋼所 Multistage thrust bearing device for twin screw extruder
EP3284576A4 (en) * 2015-04-15 2018-12-12 Kohei Sawa Transmission gear device to be used in multi-screw extruder or kneader
US10814543B2 (en) 2015-04-15 2020-10-27 Kohei Sawa Transmission gear system of multi-screw extruder or kneader
CN106855081A (en) * 2015-12-09 2017-06-16 伦克股份有限公司 For the drive device of double screw extruder
CN106855081B (en) * 2015-12-09 2020-05-19 伦克股份有限公司 Drive device for a twin-screw extruder

Also Published As

Publication number Publication date
JPS5814925B2 (en) 1983-03-23

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