MY199697A - Bucket leveling system for aerial work truck - Google Patents

Bucket leveling system for aerial work truck

Info

Publication number
MY199697A
MY199697A MYPI2020003897A MYPI2020003897A MY199697A MY 199697 A MY199697 A MY 199697A MY PI2020003897 A MYPI2020003897 A MY PI2020003897A MY PI2020003897 A MYPI2020003897 A MY PI2020003897A MY 199697 A MY199697 A MY 199697A
Authority
MY
Malaysia
Prior art keywords
valve
port
pressure
leveling
load
Prior art date
Application number
MYPI2020003897A
Inventor
Hongyue Dong
Yanjie Geng
Jingqing Hu
Shimei Chen
Sai Zhu
Original Assignee
Xuzhou Handler Special Vehicle Company 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 Xuzhou Handler Special Vehicle Company Ltd filed Critical Xuzhou Handler Special Vehicle Company Ltd
Publication of MY199697A publication Critical patent/MY199697A/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F11/00—Lifting devices specially adapted for particular uses not otherwise provided for
    • B66F11/04—Lifting devices specially adapted for particular uses not otherwise provided for for movable platforms or cabins, e.g. on vehicles, permitting workmen to place themselves in any desired position for carrying out required operations
    • B66F11/044—Working platforms suspended from booms
    • B66F11/046—Working platforms suspended from booms of the telescoping type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B66C23/64—Jibs
    • B66C23/70—Jibs constructed of sections adapted to be assembled to form jibs or various lengths
    • B66C23/701—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic
    • B66C23/705—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic telescoped by hydraulic jacks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B66C23/82—Luffing gear
    • B66C23/821—Bracing equipment for booms
    • B66C23/826—Bracing equipment acting at an inclined angle to vertical and horizontal directions
    • B66C23/828—Bracing equipment acting at an inclined angle to vertical and horizontal directions where the angle is adjustable
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B2013/002—Modular valves, i.e. consisting of an assembly of interchangeable components
    • F15B2013/004—Cartridge valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205—Systems with pumps
    • F15B2211/2053—Type of pump
    • F15B2211/20546—Type of pump variable capacity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/3056—Assemblies of multiple valves
    • F15B2211/3059—Assemblies of multiple valves having multiple valves for multiple output members
    • F15B2211/30595—Assemblies of multiple valves having multiple valves for multiple output members with additional valves between the groups of valves for multiple output members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/40—Flow control
    • F15B2211/405—Flow control characterised by the type of flow control means or valve
    • F15B2211/40515—Flow control characterised by the type of flow control means or valve with variable throttles or orifices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/40—Flow control
    • F15B2211/405—Flow control characterised by the type of flow control means or valve
    • F15B2211/40553—Flow control characterised by the type of flow control means or valve with pressure compensating valves
    • F15B2211/40569—Flow control characterised by the type of flow control means or valve with pressure compensating valves the pressure compensating valve arranged downstream of the flow control means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/40—Flow control
    • F15B2211/415—Flow control characterised by the connections of the flow control means in the circuit
    • F15B2211/41509—Flow control characterised by the connections of the flow control means in the circuit being connected to a pressure source and a directional control valve
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/50—Pressure control
    • F15B2211/505—Pressure control characterised by the type of pressure control means
    • F15B2211/50563—Pressure control characterised by the type of pressure control means the pressure control means controlling a differential pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/50—Pressure control
    • F15B2211/515—Pressure control characterised by the connections of the pressure control means in the circuit
    • F15B2211/5157—Pressure control characterised by the connections of the pressure control means in the circuit being connected to a pressure source and a return line
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/60—Circuit components or control therefor
    • F15B2211/665—Methods of control using electronic components
    • F15B2211/6658—Control using different modes, e.g. four-quadrant-operation, working mode and transportation mode
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
    • F15B2211/7051—Linear output members
    • F15B2211/7053—Double-acting output members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
    • F15B2211/7051—Linear output members
    • F15B2211/7057—Linear output members being of the telescopic type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/71—Multiple output members, e.g. multiple hydraulic motors or cylinders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/71—Multiple output members, e.g. multiple hydraulic motors or cylinders
    • F15B2211/7142—Multiple output members, e.g. multiple hydraulic motors or cylinders the output members being arranged in multiple groups

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Operation Control Of Excavators (AREA)

Abstract

A bucket leveling system for an aerial work truck, a main valve (28) being able to be a carriage valve or a multi-way valve; maximum load pressures on a telescopic cylinder (34) and a luffing cylinder (33) are both fed back to a load-sensing port LS of a constant-pressure differential variable pump (23); a reversing valve is disposed on an oil passage connecting a pressure port P of the main valve (28) and a pressure port P of a leveling valve (29); when the reversing valve is in a spring position, a pressure of the pressure port P of the leveling valve (29) is zero; when the reversing valve is reversed, a pressure port P of the constant-pressure differential variable pump (23) is in communication, by means of a speed regulating valve (281), with the port P of the leveling valve (29), and the pressure of the port P of the leveling valve (29) is fed back, by means of a one-way valve connected at an outlet port of the reversing valve, to the load-sensing port LS of the constant-pressure differential variable pump (23). The bucket leveling system is easy to control, there is no lag in leveling action, and the system responds quickly; and the entire system is a load-sensing system, saving energy consumption. (Figure 3)
MYPI2020003897A 2018-07-03 2018-10-24 Bucket leveling system for aerial work truck MY199697A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201810715474.2A CN108658019B (en) 2018-07-03 2018-07-03 A kind of working bucket leveling system of high-altitude operation vehicle
PCT/CN2018/111594 WO2020006932A1 (en) 2018-07-03 2018-10-24 Bucket leveling system for aerial work truck

Publications (1)

Publication Number Publication Date
MY199697A true MY199697A (en) 2023-11-18

Family

ID=63772727

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI2020003897A MY199697A (en) 2018-07-03 2018-10-24 Bucket leveling system for aerial work truck

Country Status (4)

Country Link
CN (1) CN108658019B (en)
GB (1) GB2587267B (en)
MY (1) MY199697A (en)
WO (1) WO2020006932A1 (en)

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CN108658019B (en) * 2018-07-03 2019-07-30 徐州海伦哲专用车辆股份有限公司 A kind of working bucket leveling system of high-altitude operation vehicle
CN109058195B (en) * 2018-10-30 2024-04-30 江苏徐工工程机械研究院有限公司 Hydraulic control system of emergency equipment and emergency equipment
CN109368500A (en) * 2018-12-25 2019-02-22 臧其亮 A kind of the full Terrain Cranes setting-up extension and retraction system and control method
CN109854556B (en) * 2019-04-01 2024-07-16 徐工集团工程机械股份有限公司科技分公司 Oil source valve, hydraulic system and engineering machinery
CN110002381B (en) * 2019-04-10 2023-06-20 湖南星邦智能装备股份有限公司 Crank arm aerial working vehicle connector leveling hydraulic system and control method
CN110030217B (en) * 2019-04-10 2023-12-01 湖南星邦智能装备股份有限公司 A control system for a floating cylinder on the chassis of an aerial work vehicle and an aerial work vehicle
CN110217737B (en) * 2019-06-20 2020-09-04 江苏建筑职业技术学院 Aerial work platform control valve working condition-division follow-up system and control method
CN110645213A (en) * 2019-09-06 2020-01-03 湖南星邦重工有限公司 Active floating control method and system for underframe and aerial work platform thereof
CN110775904B (en) * 2019-10-31 2022-04-05 三一汽车制造有限公司 Leveling control system and leveling control method for working bucket of high-altitude vehicle and high-altitude vehicle
CN110905870B (en) * 2019-12-09 2022-01-11 柳州柳工液压件有限公司 Load sensitive hydraulic system
CN111302227A (en) * 2020-02-28 2020-06-19 西安石油大学 A multi-degree-of-freedom lifting platform device and automatic leveling method
CN111943095B (en) * 2020-07-10 2021-10-01 湖南星邦智能装备股份有限公司 A kind of aerial work vehicle boom stability control method
CN112833058B (en) * 2021-01-21 2023-03-31 长沙中联重科环境产业有限公司 Load-sensitive hydraulic system and hedge trimming equipment
CN113175460B (en) * 2021-04-23 2023-09-01 中国人民解放军国防科技大学 Hydraulic cylinder with variable piston section
CN115258470B (en) * 2021-04-30 2025-11-25 犀重新能源汽车有限公司 A garbage compactor truck and its scraper linkage system
CN113582095B (en) * 2021-06-30 2023-04-07 江苏徐工工程机械研究院有限公司 Self-adaptive control method, system and device for stability of working platform of elevating fire truck
CN113582093B (en) * 2021-08-05 2024-10-18 江苏柳工机械有限公司 Luffing leveling hydraulic control system of boom type aerial work platform
CN113683033B (en) * 2021-09-23 2024-08-23 江苏柳工机械有限公司 Hydraulic full-time floating control system and control method for arm-frame type aerial work platform
CN113915188B (en) * 2021-10-18 2024-05-07 山东泰丰智能控制股份有限公司 Self-adaptive hydraulic control system
CN115095567B (en) * 2022-07-28 2025-09-02 徐州徐工矿业机械有限公司 Hydraulic system and control method for leveling cylinder of front shovel hydraulic excavator
CN115488891A (en) * 2022-10-10 2022-12-20 陕煤集团神木柠条塔矿业有限公司 Electro-hydraulic control system and method for mine-used multi-joint heavy-duty hydraulic manipulator
CA3233558A1 (en) * 2022-12-19 2024-06-19 Changhui DU Floating control system for fixed displacement pump system
CN116221205A (en) * 2023-03-03 2023-06-06 上海中联重科桩工机械有限公司 Load Sensing Hydraulic Circuit
CN116928183B (en) * 2023-08-31 2026-02-10 江苏大学 A hydraulic system for a tracked lifting chassis and its leveling method

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CN108658019B (en) * 2018-07-03 2019-07-30 徐州海伦哲专用车辆股份有限公司 A kind of working bucket leveling system of high-altitude operation vehicle

Also Published As

Publication number Publication date
CN108658019A (en) 2018-10-16
CN108658019B (en) 2019-07-30
GB2587267A (en) 2021-03-24
GB2587267B (en) 2021-08-18
WO2020006932A1 (en) 2020-01-09
GB202011541D0 (en) 2020-09-09

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