JPS56131802A - Oil hydraulic circuit for slewing drive of construction equipment - Google Patents

Oil hydraulic circuit for slewing drive of construction equipment

Info

Publication number
JPS56131802A
JPS56131802A JP3261980A JP3261980A JPS56131802A JP S56131802 A JPS56131802 A JP S56131802A JP 3261980 A JP3261980 A JP 3261980A JP 3261980 A JP3261980 A JP 3261980A JP S56131802 A JPS56131802 A JP S56131802A
Authority
JP
Japan
Prior art keywords
oil
pressure
slewing
duct
oil hydraulic
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
JP3261980A
Other languages
Japanese (ja)
Inventor
Hajime Suzuki
Shin Sugita
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 JP3261980A priority Critical patent/JPS56131802A/en
Publication of JPS56131802A publication Critical patent/JPS56131802A/en
Pending legal-status Critical Current

Links

Landscapes

  • Fluid-Pressure Circuits (AREA)

Abstract

PURPOSE: To improve energetic effect and to save energy by a method wherein most of the kinetic energy of a slewing body of a constrcution equipment is accumulated in a pressure accumulator as pressure so that it can be applied to slewing drive.
CONSTITUTION: When a directional control valve 2' is operated, the discharge oil of an oil pressure pump 1 is given to a slewing motor 11 and a turnable body 12 is returned from the rotating state to the neutral one for stopping itself, the oil hydraulic motor 11 is rotated by the turn of the turnable body 12. Accordingly, to take an example, the side of a duct 22 takes a highr pressure and the dicharge oil of the oil hydraulic motor 11 is sucked into the oil hydraulic motor 11 through a non-return valve 6, a relief valve 3, a non-return valve 7. At this time, since the pressure accumulator 16 is connected with the side of the duct 22 through the directional control valve 2', the high pressure oil in the duct 22 is accumulated in the pressure accumulator 16 by moving a piston 15 rightward against a spring 14. After that, the high pressure oil in the pressure accumulator 16 is sent to the duct 21 or 22 and used when the turnable body is in slewing motion.
COPYRIGHT: (C)1981,JPO&Japio
JP3261980A 1980-03-17 1980-03-17 Oil hydraulic circuit for slewing drive of construction equipment Pending JPS56131802A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3261980A JPS56131802A (en) 1980-03-17 1980-03-17 Oil hydraulic circuit for slewing drive of construction equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3261980A JPS56131802A (en) 1980-03-17 1980-03-17 Oil hydraulic circuit for slewing drive of construction equipment

Publications (1)

Publication Number Publication Date
JPS56131802A true JPS56131802A (en) 1981-10-15

Family

ID=12363859

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3261980A Pending JPS56131802A (en) 1980-03-17 1980-03-17 Oil hydraulic circuit for slewing drive of construction equipment

Country Status (1)

Country Link
JP (1) JPS56131802A (en)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2522080A1 (en) * 1982-02-20 1983-08-26 Hartmann & Laemmle TRAINING FOR A MOBILE MASS USING A HYDRAULIC ENGINE
JPH04133744U (en) * 1991-05-31 1992-12-11 積水化学工業株式会社 sink
JPH074552U (en) * 1993-06-22 1995-01-24 コベルコ建機エンジニアリング株式会社 Work vehicle
JP2010019382A (en) * 2008-07-11 2010-01-28 Sumitomo (Shi) Construction Machinery Co Ltd Hydraulic pump volume control circuit
US8776511B2 (en) 2011-06-28 2014-07-15 Caterpillar Inc. Energy recovery system having accumulator and variable relief
US8850806B2 (en) 2011-06-28 2014-10-07 Caterpillar Inc. Hydraulic control system having swing motor energy recovery
CN104179756A (en) * 2013-05-20 2014-12-03 住友重机械工业株式会社 Regeneration circuit for hydraulic motor, construction machine including regeneration circuit, and method of controlling regeneration circuit of hydraulic motor
US8919113B2 (en) 2011-06-28 2014-12-30 Caterpillar Inc. Hydraulic control system having energy recovery kit
JP2015014345A (en) * 2013-07-08 2015-01-22 日立建機株式会社 Hydraulic circuit of construction machine
US9068575B2 (en) 2011-06-28 2015-06-30 Caterpillar Inc. Hydraulic control system having swing motor energy recovery
US9086081B2 (en) 2012-08-31 2015-07-21 Caterpillar Inc. Hydraulic control system having swing motor recovery
US9091286B2 (en) 2012-08-31 2015-07-28 Caterpillar Inc. Hydraulic control system having electronic flow limiting
US9139982B2 (en) 2011-06-28 2015-09-22 Caterpillar Inc. Hydraulic control system having swing energy recovery
US9145660B2 (en) 2012-08-31 2015-09-29 Caterpillar Inc. Hydraulic control system having over-pressure protection
US9187878B2 (en) 2012-08-31 2015-11-17 Caterpillar Inc. Hydraulic control system having swing oscillation dampening
US9328744B2 (en) 2012-08-31 2016-05-03 Caterpillar Inc. Hydraulic control system having swing energy recovery
US9388829B2 (en) 2012-08-31 2016-07-12 Caterpillar Inc. Hydraulic control system having swing motor energy recovery
US9388828B2 (en) 2012-08-31 2016-07-12 Caterpillar Inc. Hydraulic control system having swing motor energy recovery

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2522080A1 (en) * 1982-02-20 1983-08-26 Hartmann & Laemmle TRAINING FOR A MOBILE MASS USING A HYDRAULIC ENGINE
JPS58156702A (en) * 1982-02-20 1983-09-17 ハルトマン・ウント・レエムレ・ゲ−エムベ−ハ−・ウント・コ・カ−ゲ− Driving device for body moved by hydraulic motor
JPH04133744U (en) * 1991-05-31 1992-12-11 積水化学工業株式会社 sink
JPH074552U (en) * 1993-06-22 1995-01-24 コベルコ建機エンジニアリング株式会社 Work vehicle
JP2010019382A (en) * 2008-07-11 2010-01-28 Sumitomo (Shi) Construction Machinery Co Ltd Hydraulic pump volume control circuit
US8919113B2 (en) 2011-06-28 2014-12-30 Caterpillar Inc. Hydraulic control system having energy recovery kit
US9068575B2 (en) 2011-06-28 2015-06-30 Caterpillar Inc. Hydraulic control system having swing motor energy recovery
US8850806B2 (en) 2011-06-28 2014-10-07 Caterpillar Inc. Hydraulic control system having swing motor energy recovery
US8776511B2 (en) 2011-06-28 2014-07-15 Caterpillar Inc. Energy recovery system having accumulator and variable relief
US9139982B2 (en) 2011-06-28 2015-09-22 Caterpillar Inc. Hydraulic control system having swing energy recovery
US9187878B2 (en) 2012-08-31 2015-11-17 Caterpillar Inc. Hydraulic control system having swing oscillation dampening
US9086081B2 (en) 2012-08-31 2015-07-21 Caterpillar Inc. Hydraulic control system having swing motor recovery
US9091286B2 (en) 2012-08-31 2015-07-28 Caterpillar Inc. Hydraulic control system having electronic flow limiting
US9145660B2 (en) 2012-08-31 2015-09-29 Caterpillar Inc. Hydraulic control system having over-pressure protection
US9328744B2 (en) 2012-08-31 2016-05-03 Caterpillar Inc. Hydraulic control system having swing energy recovery
US9388829B2 (en) 2012-08-31 2016-07-12 Caterpillar Inc. Hydraulic control system having swing motor energy recovery
US9388828B2 (en) 2012-08-31 2016-07-12 Caterpillar Inc. Hydraulic control system having swing motor energy recovery
CN104179756A (en) * 2013-05-20 2014-12-03 住友重机械工业株式会社 Regeneration circuit for hydraulic motor, construction machine including regeneration circuit, and method of controlling regeneration circuit of hydraulic motor
JP2015014345A (en) * 2013-07-08 2015-01-22 日立建機株式会社 Hydraulic circuit of construction machine

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