JP2006316972A5 - - Google Patents

Download PDF

Info

Publication number
JP2006316972A5
JP2006316972A5 JP2005142856A JP2005142856A JP2006316972A5 JP 2006316972 A5 JP2006316972 A5 JP 2006316972A5 JP 2005142856 A JP2005142856 A JP 2005142856A JP 2005142856 A JP2005142856 A JP 2005142856A JP 2006316972 A5 JP2006316972 A5 JP 2006316972A5
Authority
JP
Japan
Prior art keywords
hydraulic
capacity
traveling
friction braking
hydraulic motor
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
JP2005142856A
Other languages
Japanese (ja)
Other versions
JP4975980B2 (en
JP2006316972A (en
Filing date
Publication date
Application filed filed Critical
Priority to JP2005142856A priority Critical patent/JP4975980B2/en
Priority claimed from JP2005142856A external-priority patent/JP4975980B2/en
Publication of JP2006316972A publication Critical patent/JP2006316972A/en
Publication of JP2006316972A5 publication Critical patent/JP2006316972A5/ja
Application granted granted Critical
Publication of JP4975980B2 publication Critical patent/JP4975980B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Claims (2)

アクセルペダル１ａにより回転速度を制御される原動機１により駆動される油圧ポンプ３と、前後進切換弁４と一対の主管路５，６で接続され前記油圧ポンプ３から前後進切換弁４を介して供給される作動油により駆動され作業車両の車輪２を回転駆動する可変容量型の走行用油圧モータ７と、走行用油圧モータ７の容量を変更する容量制御手段８と、主管路５，６に介装したカウンターバランス弁９と、カウンターバランス弁９と走行用油圧モータ７との間の主回路間５，６を接続するバイパス管路１０，１１と、バイパス管路１０，１１に介装したブレーキ弁１２，１３とを備える作業車両の油圧走行装置において、
ブレーキペダル１４の操作に応答して作動し前記車輪２の回転を制動する摩擦制動手段１５を設けると共に、ブレーキペダル１４の操作または摩擦制動手段１５の作動を検出する摩擦制動検出手段１６を設け、この摩擦制動検出手段１６の検出信号を前記容量制御手段８に入力し、容量制御手段８は、摩擦制動検出手段１６からの検出信号を受け取ったときには、前記走行用油圧モータ７の容量を所定の小容量に制限するよう構成したことを特徴とする作業車両の油圧走行装置。 A hydraulic pump 3 driven by a prime mover 1 whose rotational speed is controlled by an accelerator pedal 1a, a forward / reverse switching valve 4 and a pair of main pipelines 5 and 6 are connected to the hydraulic pump 3 via the forward / reverse switching valve 4. A variable displacement traveling hydraulic motor 7 that is driven by the supplied hydraulic oil to rotationally drive the wheels 2 of the work vehicle, a capacity control means 8 that changes the capacity of the traveling hydraulic motor 7, and main pipes 5 and 6. The intervening counterbalance valve 9, the bypass lines 10 and 11 connecting the main circuits 5 and 6 between the counterbalance valve 9 and the traveling hydraulic motor 7, and the bypass lines 10 and 11 are interposed. in the hydraulic traveling apparatus for a working vehicle Ru and a brake valve 12,
Friction braking means 15 that operates in response to the operation of the brake pedal 14 and brakes the rotation of the wheel 2 is provided, and friction braking detection means 16 that detects the operation of the brake pedal 14 or the operation of the friction braking means 15 is provided. The detection signal of the friction braking detection means 16 is input to the capacity control means 8, and when the capacity control means 8 receives the detection signal from the friction braking detection means 16, the capacity of the traveling hydraulic motor 7 is set to a predetermined value. A hydraulic traveling device for a work vehicle, characterized by being configured to limit to a small capacity. 前記容量制御手段８は、カウンターバランス弁９の後段の前記一対の主管路５，６の高圧側の油圧に応じて走行用油圧モータ７の容量を増減させるよう構成したことを特徴とする請求項１記載の作業車両の油圧走行装置。The capacity control means (8) is configured to increase or decrease the capacity of the traveling hydraulic motor (7) in accordance with the hydraulic pressure on the high pressure side of the pair of main lines (5, 6) downstream of the counter balance valve (9). 2. A hydraulic travel device for a work vehicle according to 1.
JP2005142856A 2005-05-16 2005-05-16 Hydraulic traveling device for work vehicle Active JP4975980B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2005142856A JP4975980B2 (en) 2005-05-16 2005-05-16 Hydraulic traveling device for work vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005142856A JP4975980B2 (en) 2005-05-16 2005-05-16 Hydraulic traveling device for work vehicle

Publications (3)

Publication Number Publication Date
JP2006316972A JP2006316972A (en) 2006-11-24
JP2006316972A5 true JP2006316972A5 (en) 2008-05-15
JP4975980B2 JP4975980B2 (en) 2012-07-11

Family

ID=37537823

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2005142856A Active JP4975980B2 (en) 2005-05-16 2005-05-16 Hydraulic traveling device for work vehicle

Country Status (1)

Country Link
JP (1) JP4975980B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110701126B (en) * 2019-10-31 2023-08-08 徐州徐工随车起重机有限公司 Bridge detection vehicle and amplitude-variable supporting leg hydraulic control system and control method thereof

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4851169A (en) * 1971-10-29 1973-07-18
JPS5617407U (en) * 1979-07-20 1981-02-16
JPS57127903U (en) * 1981-02-03 1982-08-10
JPS6088202A (en) * 1983-10-20 1985-05-18 Hitachi Constr Mach Co Ltd Speed control device for hydraulic drive circuit
JPS59146649U (en) * 1984-02-13 1984-10-01 三菱重工業株式会社 hydraulic power transmission device
JPS60152545U (en) * 1984-03-23 1985-10-11 日立建機株式会社 Hydraulic motor circuit for driving hydraulically driven vehicles
JPH0349283Y2 (en) * 1986-01-28 1991-10-22
JPS63158422U (en) * 1987-04-03 1988-10-18
JPS63266201A (en) * 1987-04-22 1988-11-02 Komatsu Ltd Capacity controller for variable displacement hydraulic motor
JPH06239599A (en) * 1993-02-10 1994-08-30 Komatsu Ltd Oil pressure control device for fork-lift
JP2880365B2 (en) * 1993-03-15 1999-04-05 住友建機株式会社 Hydraulic motor drive circuit
JPH09229002A (en) * 1996-02-23 1997-09-02 Yanmar Diesel Engine Co Ltd Hydraulic mechanism of running vehicle
JP4333137B2 (en) * 2002-12-25 2009-09-16 コベルコクレーン株式会社 Wheeled construction machine travel device
JP4069795B2 (en) * 2003-04-30 2008-04-02 コベルコクレーン株式会社 Hydraulic travel drive device
JP4189272B2 (en) * 2003-06-12 2008-12-03 株式会社Ｉｈｉシバウラ Hydraulically driven vehicle
JP2005106074A (en) * 2003-09-26 2005-04-21 Komatsu Ltd Running control device for hydraulic drive type railway construction vehicle

Similar Documents

Publication Publication Date Title
JP5643202B2 (en) Control system and method for braking a hydrostatic drive machine
RU2010133871A (en) BRAKE SYSTEM AND METHOD OF CONTROL BRAKE SYSTEM
JP2007022351A5 (en)
JP6445248B2 (en) Brake system for vehicle and method of operating brake system
US11084480B2 (en) Electric brake system and controlling method thereof
JP2009538769A (en) Drive apparatus having energy storage device and method for storing kinetic energy
JP5123864B2 (en) Control device for belt type continuously variable transmission
WO2007052692A1 (en) Travel control device for working vehicle and working vehicle
JP2017528369A5 (en)
JP2006316972A5 (en)
JP2003512239A (en) Operating unit for vehicle wheel brakes
JP2005507345A5 (en)
US7905554B2 (en) Working machine
JP4975980B2 (en) Hydraulic traveling device for work vehicle
JP4870476B2 (en) Hydraulic traveling device for work vehicle
JP2009024747A (en) Hydraulic travel driving apparatus
CN110273948B (en) Hydraulic brake and vehicle with same
JP4069795B2 (en) Hydraulic travel drive device
US7958799B1 (en) Brake for gear cone transmission
JPH05246259A (en) Four wheel drive vehicle
JP6567404B2 (en) Vehicle brake system
JPH02261946A (en) Control device for limited slip differential
JPS5920882B2 (en) Hydraulic drive vehicle control circuit
JP3346967B2 (en) Combine traveling hydraulics
JP2016203698A5 (en)