JPS56143864A - Low noise gear box - Google Patents

Low noise gear box

Info

Publication number
JPS56143864A
JPS56143864A JP4683180A JP4683180A JPS56143864A JP S56143864 A JPS56143864 A JP S56143864A JP 4683180 A JP4683180 A JP 4683180A JP 4683180 A JP4683180 A JP 4683180A JP S56143864 A JPS56143864 A JP S56143864A
Authority
JP
Japan
Prior art keywords
gear box
vibration proof
protection plates
sound insulation
proof material
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.)
Pending
Application number
JP4683180A
Other languages
Japanese (ja)
Inventor
Tsuneo Fujita
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP4683180A priority Critical patent/JPS56143864A/en
Publication of JPS56143864A publication Critical patent/JPS56143864A/en
Pending 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
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/0412—Cooling or heating; Control of temperature
    • F16H57/0415—Air cooling or ventilation; Heat exchangers; Thermal insulations

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Details Of Gearings (AREA)

Abstract

PURPOSE: To improve a heat radiation and a noise prevention by a method wherein a wall of gear box is made to form four layers of a gear box, a sound insulation vibration proof plate, a vacuum layer and a fin protection plate.
CONSTITUTION: Cooling fins 5 including thin fins 3 and fin protection plates 4 are fixed to an outer surface of a gear box 2 with a brazing means, thereafter, a sound insulation vibration proof material 7 is fed from the feeding port 6 into a space between the gear box 2 and the fin protection plates 4 and then cooled down. Thereby since a vacuum layer 9 is formed between the protection plates 4 and the vibration proof material 7, thus a four-layer including a gear box 2, a vibration proof material 7, a vacuum layer 9 and protection plates 4 is formed in the gear box 2 to make a sound insulation wall, and further it is possible to form the gear box having a superior cooling and sound prevention effect.
COPYRIGHT: (C)1981,JPO&Japio
JP4683180A 1980-04-11 1980-04-11 Low noise gear box Pending JPS56143864A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4683180A JPS56143864A (en) 1980-04-11 1980-04-11 Low noise gear box

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4683180A JPS56143864A (en) 1980-04-11 1980-04-11 Low noise gear box

Publications (1)

Publication Number Publication Date
JPS56143864A true JPS56143864A (en) 1981-11-09

Family

ID=12758272

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4683180A Pending JPS56143864A (en) 1980-04-11 1980-04-11 Low noise gear box

Country Status (1)

Country Link
JP (1) JPS56143864A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04219401A (en) * 1991-04-15 1992-08-10 Hitachi Ltd Scroll fluid machinery

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04219401A (en) * 1991-04-15 1992-08-10 Hitachi Ltd Scroll fluid machinery
JPH0549801B2 (en) * 1991-04-15 1993-07-27 Hitachi Ltd

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