KR950018965A - Wheel loader driving pitching mitigation device - Google Patents

Wheel loader driving pitching mitigation device Download PDF

Info

Publication number
KR950018965A
KR950018965A KR1019930031441A KR930031441A KR950018965A KR 950018965 A KR950018965 A KR 950018965A KR 1019930031441 A KR1019930031441 A KR 1019930031441A KR 930031441 A KR930031441 A KR 930031441A KR 950018965 A KR950018965 A KR 950018965A
Authority
KR
South Korea
Prior art keywords
wheel loader
control block
accumulator
boom cylinder
valve
Prior art date
Application number
KR1019930031441A
Other languages
Korean (ko)
Other versions
KR100188509B1 (en
Inventor
강병욱
이남식
Original Assignee
김무
삼성중공업 주식회사
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 김무, 삼성중공업 주식회사 filed Critical 김무
Priority to KR1019930031441A priority Critical patent/KR100188509B1/en
Publication of KR950018965A publication Critical patent/KR950018965A/en
Application granted granted Critical
Publication of KR100188509B1 publication Critical patent/KR100188509B1/en

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/20—Hydro energy

Landscapes

  • Fluid-Pressure Circuits (AREA)
  • Operation Control Of Excavators (AREA)

Abstract

본 발명은 휠로다 주행시스템에 관한 것으로 특히 휠로다(WHEEL LOADER)의 주행시(특히 LOAD ＆ CARRY작업)고르지 못한 지면을 통과할때 장비의 전.후 PITCHING현상의 제어(감쇄)를 위한 장비의 전.후 평형 유지 기능을 하는 휠로다 주행 피칭현상 완화장치에 관한 것으로 본 발명에서는 기존 유압시스템에 콘트롤블록, 어큐무레이터, 메니몰드등을 추가설치하여 WHEEL LOADER의 고르지 못한 지면에서 주행시 발생하는 전.후 피칭 및 상하 반동을 붐실린더에서 발생하는 붐실린더의 압력 변동을 콘트롤블록을 경유하여 어큐무레이터로 전달된 유체의 압력변동을 흡수.축압하여 장비 전.후 피칭 및 반동 제어 및 장비의 수명을 연장시키도록 함을 특징으로 함.The present invention relates to a wheel loader driving system. In particular, when the wheel loader is traveling (especially LOAD & CARRY work), the equipment is transferred to the front and rear of the equipment for the control (attenuation) during the uneven ground. . The present invention relates to a wheel loader for relieving the balance of the driving pitching function. The present invention provides a control block, an accumulator, and a manifold in addition to an existing hydraulic system. After pitching and recoil up and down, the pressure change of the boom cylinder generated from the boom cylinder is absorbed through the control block to absorb and accumulate the pressure change of the fluid delivered to the accumulator. Characterized by extending.

Description

휠로다 주행 피칭현상 완화장치Wheel loader driving pitching mitigation device

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명의 회로도이고,1 is a circuit diagram of the present invention,

제2도는 본 발명이 적용된 휠로더의 작업장치(붐,버켓)의 동작상태를 보인 측면도임.2 is a side view showing the operating state of the working device (boom, bucket) of the wheel loader to which the present invention is applied.

제3도는 종래의 유압 회로도.3 is a conventional hydraulic circuit diagram.

Claims (2)

유압장치인 모터(1)과 상기 모터(1)에 의해 구동되어 유압을 형성하는 주펌프(2)와 보조펌프(3)및 상기 유압을 콘트롤하는 서플라이유니트밸브(6)과 주방향조절밸브(4)를 원격조절하는 원격조절밸브(7a)로 구성된 통상의 휠로다의 유압시스템에 있어서, 상기 주방향조절밸브(4)와 별도의 배관에 의해 연결된 솔레노이드밸브 (10b)와 로직엘리먼트(10a)가 구비된 콘트롤블록(10)과; 상기 콘트롤블록(10)에 배관(11)로 연결된 어큐무레이터(13)와 메니폴드(12)가 부설되어 구성됨을 특징으로 하는 휠로다 주행 피칭현상 완화장치.The main pump 2 and the auxiliary pump 3, which are driven by the motor 1 and the motor 1, which are hydraulic devices to form the hydraulic pressure, and the supply unit valve 6 for controlling the hydraulic pressure, and the main direction control valve ( In the hydraulic system of a conventional wheel loader composed of a remote control valve (7a) for remote control 4), the solenoid valve (10b) and the logic element (10a) connected to the main direction control valve (4) by a separate pipe And provided with a control block 10; Wheel accumulator driving pitching phenomenon mitigation device, characterized in that the control block 10 is connected to the accumulator 13 and the manifold 12 is connected to the pipe (11). 제1항에 있어서, 주행시 콘트롤블록(10)의 솔레노이드밸브(10b)를 절환하여 붐(14)과 버켓(15)및 작업물(15a)의 자중에 의해 휠로더(16)의 장비 앞쪽으로 발생되는 힘이 붐실린더(5)를 누르게 되어 붐실린더(5)의 큰방(5a)의 작동유에 가해지며, 이 힘은 로직엘리먼트(10a)를 밀고 배관(11)과 메니폴드(12)를 경유하여, 어큐무레이터(13)에 전달되어 축압되면서 반작용을 제거하여 휠로다(16)의 전.후 피칭과 상.하 반동을 감쇄하도록 함을 특징으로 하는 휠로다 주행 피칭현상 완화장치.The method of claim 1, wherein the solenoid valve (10b) of the control block 10 during the run is switched to the front of the equipment of the wheel loader 16 by the weight of the boom 14, the bucket 15 and the workpiece (15a) The force is pressed against the boom cylinder (5) is applied to the hydraulic oil of the large room (5a) of the boom cylinder (5), this force pushes the logic element (10a) through the pipe (11) and the manifold (12), The wheel loader traveling pitching phenomenon alleviation device characterized in that to reduce the reaction to the front and rear pitch and the up and down rebound of the wheel loader 16 is delivered to the cumulator 13 to accumulate the pressure. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930031441A 1993-12-30 1993-12-30 Drive pitching alleviation device for wheel loader KR100188509B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019930031441A KR100188509B1 (en) 1993-12-30 1993-12-30 Drive pitching alleviation device for wheel loader

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019930031441A KR100188509B1 (en) 1993-12-30 1993-12-30 Drive pitching alleviation device for wheel loader

Publications (2)

Publication Number Publication Date
KR950018965A true KR950018965A (en) 1995-07-22
KR100188509B1 KR100188509B1 (en) 1999-06-01

Family

ID=19374430

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019930031441A KR100188509B1 (en) 1993-12-30 1993-12-30 Drive pitching alleviation device for wheel loader

Country Status (1)

Country Link
KR (1) KR100188509B1 (en)

Also Published As

Publication number Publication date
KR100188509B1 (en) 1999-06-01

Similar Documents

Publication Publication Date Title
US7444809B2 (en) Hydraulic regeneration system
JP3231771B2 (en) Energy recovery device
US6748738B2 (en) Hydraulic regeneration system
US7121185B2 (en) Hydraulic cylinder having a snubbing valve
US5490384A (en) Hydraulic flow priority system
KR102403991B1 (en) Boom speed increase hydraulic system for construction machinery
JP3162384B2 (en) Hydraulic devices for working machines with working devices
KR102663742B1 (en) hydraulic machinery
US3523490A (en) Anti-cavitation mechanism for fluid driven systems
RU96121921A (en) HYDRAULIC DRILLING EQUIPMENT DEVICE
EP1126088B1 (en) Hydraulic system for the dampening of inertia load
JP2711894B2 (en) Variable displacement pump controller for hydraulically driven vehicles
US5117950A (en) Hydraulic shock absorber controller for a wheel crane
JP3852701B2 (en) Hydraulic circuit using hydraulic cylinder
US3727600A (en) Hydraulic stone splitter with shock absorber means
KR950018965A (en) Wheel loader driving pitching mitigation device
US20160152261A1 (en) Hydraulic system with margin based flow supplementation
US10690151B2 (en) Device for recovering hydraulic energy by connecting two differential cylinders
KR0157275B1 (en) Swing energy accumulation device for excavator
US7117670B2 (en) Control device
JPH022774Y2 (en)
JPH0872570A (en) Control device for hydraulic motor for running
KR0131980Y1 (en) Two step relief hydraulic circuit apparatus for a heavy machine
JPH0452481Y2 (en)
US3667224A (en) Power transmission systems

Legal Events

Date Code Title Description
A201 Request for examination
N231 Notification of change of applicant
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
LAPS Lapse due to unpaid annual fee