WO2015032236A1 - 正面吊及其势能回收利用系统 - Google Patents

正面吊及其势能回收利用系统 Download PDF

Info

Publication number
WO2015032236A1
WO2015032236A1 PCT/CN2014/080084 CN2014080084W WO2015032236A1 WO 2015032236 A1 WO2015032236 A1 WO 2015032236A1 CN 2014080084 W CN2014080084 W CN 2014080084W WO 2015032236 A1 WO2015032236 A1 WO 2015032236A1
Authority
WO
WIPO (PCT)
Prior art keywords
potential energy
boom
energy recovery
accumulator
reach stacker
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.)
Ceased
Application number
PCT/CN2014/080084
Other languages
English (en)
French (fr)
Inventor
彭国成
李翠英
廖荣华
董元俊
陈应杰
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.)
Hunan Sany Intelligent Control Equipment Co Ltd
Sany Group Co Ltd
Original Assignee
Hunan Sany Intelligent Control Equipment Co Ltd
Sany Group Co 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 Hunan Sany Intelligent Control Equipment Co Ltd, Sany Group Co Ltd filed Critical Hunan Sany Intelligent Control Equipment Co Ltd
Publication of WO2015032236A1 publication Critical patent/WO2015032236A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/075—Constructional features or details
    • B66F9/20—Means for actuating or controlling masts, platforms, or forks
    • B66F9/22—Hydraulic devices or systems
    • 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
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/065—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks non-masted
    • 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
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/075—Constructional features or details
    • B66F9/12—Platforms; Forks; Other load supporting or gripping members
    • B66F9/18—Load gripping or retaining means
    • B66F9/186—Container lifting frames
    • 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
    • F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
    • F15B1/02—Installations or systems with accumulators
    • F15B1/022—Installations or systems with accumulators used as an emergency power source, e.g. in case of pump failure
    • 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
    • F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/14—Energy-recuperation 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
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/21—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge
    • F15B2211/212—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge the pressure sources being accumulators
    • 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
    • F15B2211/7107—Multiple output members, e.g. multiple hydraulic motors or cylinders the output members being mechanically linked

Definitions

  • the present disclosure relates to the field of construction machinery, and in particular to a front hoist energy recycling system and a front hoist. Background technique
  • the basic balance valve or other flow control valve can form a back pressure against the load of the pitch cylinder to achieve a smooth load release.
  • the frame body 1 is hinged to the basic section 2 of the boom.
  • the front hoist When the front hoist is placed to lower the load from the high point (ie, down), in order to prevent the free fall or the acceleration from falling, there must be an external force to support the load to resist the gravity of the load, and ensure that the load is placed smoothly.
  • the front hoist generally forms a pressure through the oil returning of the pitching cylinder 3, and acts on the load through the cylinder to achieve a smooth load release. In this process, the load gravitational potential energy is converted into heat energy by throttling, which causes the hydraulic oil to heat up.
  • the technical problem to be solved by the present disclosure is to provide a frontal hoist energy recycling system.
  • the simple structure is used to realize the recycling of the potential energy of the front hanging crane, thereby achieving the effect of energy saving, reducing the return loss of the oil return and reducing the heating of the system.
  • the embodiments of the present disclosure provide the following technical solutions:
  • the embodiments of the present disclosure provide a front hanging energy recovery system, the system includes: a frame body, and a frame body An articulated boom base section for retracting the resilient means of utilizing the frontal suspension potential energy, the resilient means being located between the frame body and the basic section of the boom.
  • the resilient means preferably comprises: an accumulator cylinder, a hydraulic hose and an accumulator.
  • the accumulator cylinder and the accumulator are connected by the hydraulic oil pipe.
  • the accumulator cylinder is preferably a single extension rod cylinder having a piston rod projecting end hinged to the base section of the boom and the other end hinged to the frame body.
  • the accumulator cylinders are two or more, each disposed on either side of the basic section of the boom.
  • the accumulators are two or more, each disposed on the frame body.
  • the system further includes a transition block having a pressure reducing valve and a one-way weir integrated therein, the decompression weir and the one-way weir being sequentially disposed in a pressurized oil source and the accumulator On the oil inlet channel between the ports.
  • an oil return passage between the oil port of the accumulator and the return tank is provided with a relief valve.
  • a shutoff valve is also disposed between the reservoir of the accumulator and the return tank.
  • the resilient means is a spring mounted between the frame body and the base section of the boom.
  • the front hoisting energy recycling system and the front hoist provided by the embodiments of the present disclosure have a simple structure and are easy to implement, and can realize the recovery and utilization of the front hoisting gravity potential energy, thereby achieving the effect of energy saving of the front hoisting system.
  • the embodiment of the present disclosure further provides a front hang, comprising the front hoist energy recycling system according to any one of the above technical solutions. Since the front hoist has all the beneficial effects of the above-mentioned front hoisting energy recycling system, it will not be described herein.
  • FIG. 1 is a schematic view of a front boom boom pitch system in the related art
  • FIG. 2 is a schematic view showing the structure of a frontal hoist energy recycling system proposed by some embodiments of the present disclosure
  • FIG 3 is a schematic illustration of the hydraulic system of the embodiment of the front hoist energy recycling system shown in Figure 2;
  • FIG. 4 is a schematic diagram of another configuration of a frontal hoist energy recycling system proposed by some embodiments of the present disclosure.
  • the front hoisting energy recycling system comprises: a frame body 1 , a basic section 2 of the boom hinged to the frame body 1 , and an elastic device is located between the frame body 1 and the basic section 2 of the boom for collecting And use the frontal potential energy.
  • the potential energy includes, but is not limited to, the potential energy of the front boom frame itself, the potential energy of the boom hanger spreader, and the potential energy carried by the spreader.
  • the pitch cylinder when the pitch cylinder is retracted, the boom (including the basic section 2 of the boom) is tilted down, and the elastic device located between the frame body 1 and the basic section 2 of the boom decomposes a part of the arm against the pitch cylinder 3, That is, the elastic device assists the pitch cylinder to provide a part of the supporting force to the boom, and stores the gravitational potential energy of the boom that is distracted and received; since the elastic device provides an auxiliary supporting force to the boom, the pitch cylinder needs support for the load. The force is reduced, and the oil return flow on the oil returning cylinder is reduced, and the system heat is reduced. When the boom needs to be lifted up again to lift the load, the elastic device will release the potential energy stored when the boom is lowered. The auxiliary pitch cylinder lifts the boom, so the lift required by the pitch cylinder is reduced to achieve energy savings.
  • the front hoisting energy recycling system recovers the gravitational potential energy of the front jib frame by providing an elastic device between the frame body 1 and the basic section 2 of the jib, thereby reducing oil return and fuel saving loss. Reduce system heating.
  • the elastic device has a simple structure and is easy to implement, and can not only realize the recovery and utilization of the potential energy of the front hanging crane, but also achieve the effect of saving energy in the front hanging system. It can recover the energy that is wasted by the hydraulic system when the front boom frame is lowered, which reduces the heat of the hydraulic system and improves the performance and working life of the hydraulic system.
  • the elastic means may include: an accumulator cylinder 31, a hydraulic oil pipe 32 and an accumulator 34.
  • the accumulator cylinder 31 and the accumulator 34 are connected by a hydraulic oil pipe 32.
  • the accumulator cylinders 31 may be two or more, and are respectively arranged on both sides of the basic section 2 of the boom. Wherein, when the accumulator cylinders 31 are two, they may be symmetrically arranged on both sides of the basic section 2 of the boom.
  • the accumulator cylinder 31 can utilize a single extension rod cylinder with the piston rod extension end hinged to the boom base section 2 and the other end hinged to the frame body 1.
  • the accumulators 34 may be two or more and are respectively disposed on the frame body 1. As shown in Figure 3, the accumulators 34 can be four. In addition, a shutoff valve 35 may be provided between the oil port of the accumulator 34 and the return tank.
  • the front hoist energy recycling system may further include: a transition block 33, which may integrate components such as a decompression crucible 331 and a one-way crucible 332.
  • the pressure reducing valve 331 is located at the oil system inlet of the front hoist energy recycling system, such as at the oil outlet of the variable pump 334 for supplying oil to the hydraulic system.
  • the check valve 332 is located between the pressure reducing valve 331 and the accumulator 34, that is, the pressure reducing valve 331 and the check valve 332 are sequentially disposed between the pressure oil source (variable pump 334) and the accumulator 34 port. On the oil inlet channel.
  • an oil return passage 333 is provided on the oil return passage between the oil port of the accumulator 34 and the return oil tank, and the overflow valve 333 is located at the oil port of the accumulator 34 and is connected to the oil return tank.
  • the elastic device can be regarded as a hydraulic system formed by the combination of the accumulator cylinder and the accumulator.
  • the hydraulic system can be a closed hydraulic system.
  • the working principle can be as shown in FIG. 3, and the hydraulic system can share the existing A variable pump 334 for supplying oil to the main system is suspended from the front.
  • variable pump 334 supplies oil to the system, from the variable pump 334.
  • a part of the pressurized oil passes through the pressure reducing valve 331 and the check valve 332 to enter the accumulator 34.
  • the relief valve 333 is set.
  • the variable pump 334 can be controlled by the pressure of the pressure reducing valve 331 to no longer supply oil to the potential energy recovery system, but only to the main system P.
  • the energy stored in the accumulator 34 is released, the piston rods of the two accumulator cylinders 31 extend out of the lift boom, and the auxiliary pitch cylinders provide lift for the boom.
  • the accumulator cylinder 31 assists the pitch cylinder to provide the supporting force, and the piston rods of the two accumulator cylinders 31 are retracted under the action of the gravitational potential energy of the boom, and the hydraulic oil of the accumulator cylinder 31 has no rod cavity. Pressing, the accumulator 34 opens the liquid filling, and absorbs this part of the energy stored in the accumulator 34. When the boom needs to be lifted again, the stored energy is released again for the lifting of the accumulator cylinder 31. .
  • the pitch cylinder When the pitch cylinder is retracted, the boom is lowered, and the elastic device between the frame body 1 and the basic section 2 of the boom can decompose a part of the arm against the pitch cylinder, that is, the auxiliary pitch cylinder provides a part of the supporting force to the boom. , and store the gravitational potential energy of the boom that is broken down. Since the elastic device provides an auxiliary supporting force to the boom, the supporting force required to support the load of the pitch cylinder is reduced, and the oil return throttle on the oil returning path of the pitch cylinder is lowered, so that the system heat is reduced.
  • the elastic device releases the potential energy stored when the boom is lowered, and the auxiliary pitch cylinder lifts the boom, so that the lifting force required by the pitch cylinder is reduced again. Further achieve the effect of energy saving.
  • the elastic device uses a spring installed between the frame body 1 and the basic section 2 of the boom. 4 , direct The spring 4 is used to store and release the gravitational potential energy of the boom.
  • the spring 4 When the boom is lowered, the spring 4 provides an auxiliary supporting force and is depressed, and the gravitational potential of the boom is converted into the elastic potential energy of the spring 4 to be stored. When the boom is required, the spring potential stored by the spring 4 is released and assists the pitch cylinder to provide lift and assists in raising the boom.
  • the elastic device uses a spring to recover and utilize the front hanging potential energy
  • the structure is not only simple and easy to implement, but also the energy conversion mode is the conversion of the gravitational potential energy and the elastic potential energy, the energy conversion loss is small, and the appropriate spring stiffness is selected to maximize the degree of Recycling gravitational potential energy.
  • the front hoist energy recycling system provided by the embodiment has a simple structure and is easy to implement, and realizes the recovery and utilization of the front hoisting gravity potential energy, thereby achieving the effect of saving energy in the front hoist system.
  • the energy of the hydraulic system is recovered when the front boom is lowered, the heat of the hydraulic system can be reduced, and the performance and working life of the hydraulic system can be improved.
  • This embodiment also provides a front hoist. Since the present embodiment uses the frontal potential energy recovery system of any of the above embodiments, the potential energy recovery and utilization system has the above technical effects. Therefore, the above description is only a preferred embodiment of the present embodiment, and is not intended to limit the present invention. For the embodiment, various changes and modifications can be made to the embodiment. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present embodiments are intended to be included within the scope of the present embodiments. Industrial applicability
  • the front hoist and the potential energy recycling system provided by the embodiments of the present disclosure can realize the recycling of the front wall crane gravitational potential energy with a simple structure, achieve the energy saving effect, reduce the oil return throttling loss, and reduce the system heat. Accordingly, embodiments of the present disclosure have industrial applicability.

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Combustion & Propulsion (AREA)
  • Analytical Chemistry (AREA)
  • Jib Cranes (AREA)

Abstract

公开了一种正面吊势能回收利用系统及正面吊，所述正面吊势能回收利用系统包括车架体（1），与车架体（1）铰接的臂架基本段（2），和位于车架体（1）和臂架基本段（2）之间的弹性装置。所述正面吊势能回收利用系统可对正面吊重力势能回收和利用，结构简单，提高了液压系统的性能和工作寿命。

Description

正面吊及其势能回收利用系统 本申请要求于 2013 年 9 月 6 日提交中国专利局、 申请号为 201320552512.X, 发明名称为 "正面吊势能回收利用系统及正面吊" 的中 国专利申请的优先权， 其全部内容通过引用结合在本申请， 本申请所引用 并包含的其披露的所有相关申请是本申请的不可分割的一部分。 技术领域
本披露涉及工程机械领域， 具体而言， 涉及一种正面吊势能回收利用 系统及正面吊。 背景技术
目前， 在正面吊俯下速度控制上， 基本釆用平衡阀或其他流量控制阀 对俯仰油缸的回油形成能足够抵抗负载的背压， 以实现负载的平稳下放。
如图 1所示的正面吊中， 车架体 1与臂架基本段 2铰接。 当正面吊在 将负载由高处放至低处 （即俯下） 时， 为防止出现自由落体或加速度下降 的情况， 必须有一外力支撑负载以抵抗负载的重力， 保证负载平稳地下放。 正面吊一般通过俯仰油缸 3 回油节流形成压力 , 并通过油缸作用于负载， 实现负载平稳下放。 在这一过程中， 负载重力势能全部通过节流转化成了 热能， 使液压油发热。
本披露的发明人经过调研发现， 正面吊下放负载的时候存在以下问题：
1 ) 下放过程中， 重力势能未得到回收， 白白浪费；
2 ) 回油节流严重， 液压系统发热。 发明内容
本披露所要解决的技术问题在于， 提供一种正面吊势能回收利用系统， 以简单的结构实现对正面吊重力势能的回收利用， 达到节能的效果， 同时 减小回油节流损失， 减小系统发热。
有鉴于此， 为解决上述技术问题， 本披露实施例提出以下技术方案： 第一方面， 本披露实施例提供了一种正面吊势能回收利用系统， 该系 统包括： 车架体， 与车架体铰接的臂架基本段， 用于回收利用正面吊势能 的弹性装置， 所述弹性装置位于车架体和臂架基本段之间。
在一些实施例中， 所述弹性装置优选包括： 蓄能油缸、 液压油管和蓄 能器。 其中， 所述蓄能油缸与所述蓄能器通过所述液压油管连接。
在一些实施例中， 蓄能油缸优选为单伸出杆油缸， 其活塞杆伸出端铰 接在臂架基本段上， 另一端铰接在车架体上。
在一些实施例中， 蓄能油缸为两个或两个以上， 分别布置在臂架基本 段的两侧。
在一些实施例中， 蓄能器为两个或两个以上， 分别布置在车架体上。 在一些实施例中， 上述系统还包括过渡块， 该过渡块上集成有减压阀 和单向阃， 所述减压阃和所述单向阃依次布置在压力油源和所述蓄能器油 口之间的进油通道上。
在一些实施例中， 蓄能器的油口与回油箱之间的回油通道上设置有还 设置有溢流阀。
在一些实施例中， 蓄能器的油口与回油箱之间还设置有截止阀。
在一些实施例中， 所述弹性装置为安装于车架体与臂架基本段之间的 弹簧。
本披露实施例提供的正面吊势能回收利用系统及正面吊， 结构简单易 于实施， 可以实现对正面吊重力势能的回收和利用， 达到使正面吊系统节 能的效果。 同时， 由于回收正面吊臂架下俯时被液压系统发热浪费掉的能 量， 降低了液压系统的发热， 提高了液压系统的性能和工作寿命。 第二方面， 本披露实施例还提供了一种正面吊， 包括上述任一技术方 案所述的正面吊势能回收利用系统。 由于该正面吊具有上述正面吊势能回 收利用系统的全部有益效果， 在此不再赘述。 附图说明
图 1是相关技术中正面吊臂架俯仰系统的示意图；
图 2是本披露一些实施例所提出的正面吊势能回收利用系统的结构示 意图；
图 3是图 2所示的正面吊势能回收利用系统实施例的液压系统原理示 意图；
图 4是本披露一些实施例所提出的正面吊势能回收利用系统的另一结 构示意图。
附图标记说明
1 车架体
2 臂架基本段
3 俯仰油缸
31 蓄能油缸
32 液压油管
33 过渡块
331 减压阀
332 单向阀
333 溢流阃
334 变量泵
34 蓄能器 具体实施方式 为了能够更清楚地理解本披露的上述目的、 特征和优点， 下面结合附 图和具体实施方式对本披露进行进一步的详细描述。 需要说明的是， 在不 冲突的情况下， 本申请的实施例及实施例中的特征可以相互组合。
在下面的描述中阐述了很多细节以便于充分理解本披露的实施例， 但 是， 本披露的实施例还可以釆用其他不同于在此描述的其他方式来实施， 因此， 本披露的实施例的保护范围并不受下面公开的具体实施例的限制。
参照图 2和图 3 ,其分别示出了本披露实施例提供的正面吊势能回收利 用系统的结构及其液压系统的工作原理。 本实施例中， 正面吊势能回收利 用系统包括： 车架体 1 , 与车架体 1铰接的臂架基本段 2, 弹性装置位于车 架体 1和臂架基本段 2之间， 用于收集并利用正面吊势能。
需要说明的是， 该势能包括但不限于正面吊臂架本身的势能、 臂架挂 载吊具的势能、 以及吊具所承载的势能等。
本实施例中， 俯仰油缸缩回时臂架 (包括臂架基本段 2 )俯下， 位于车 架体 1和臂架基本段 2之间的弹性装置分解一部分臂架对俯仰油缸 3的压 力， 即弹性装置辅助俯仰油缸对臂架提供一部分支撑力， 并将分解承受的 臂架俯下的重力势能存储起来； 由于弹性装置对臂架提供了辅助支撑力， 因此俯仰油缸需要对负载提供的支撑力得到了降低， 进而俯仰油缸回油路 上的回油节流量降低， 系统发热减小； 而当臂架需再次仰起提起负载时， 弹性装置将在臂架俯下时存储的势能释放出来， 辅助俯仰油缸举升臂架， 因此， 俯仰油缸所需要提供的举升力得到降低， 达到节能的效果。
在上述实施例中， 正面吊势能回收利用系统通过在车架体 1 与臂架基 本段 2之间设置弹性装置， 来回收利用正面吊臂架的重力势能， 从而减小 回油节油损失， 减小系统发热。 该弹性装置结构简单易于实施， 不仅能够 实现对正面吊重力势能的回收和利用， 达到使正面吊系统节能的效果， 还 能够回收正面吊臂架下俯时被液压系统发热浪费掉的能量， 降低了液压系 统的发热， 提高了液压系统的性能和工作寿命。
上述实施例中， 作为一种可选方式， 该弹性装置可包括： 蓄能油缸 31 , 液压油管 32和蓄能器 34。 其中， 蓄能油缸 31与蓄能器 34通过液压油管 32连接。
需要说明的是， 蓄能油缸 31可为两个或两个以上， 分别布置在臂架基 本段 2的两侧。 其中， 当蓄能油缸 31为两个时， 可对称地布置在臂架基本 段 2的两侧。
在一可选实施例中， 蓄能油缸 31可釆用单伸出杆油缸， 其活塞杆伸出 端铰接在臂架基本段 2上， 另一端铰接在车架体 1上。
上述实施例中， 可选的是， 蓄能器 34可为两个或两个以上， 分别布置 在车架体 1上。 如图 3所示， 蓄能器 34可为四个。 另外， 蓄能器 34的油 口与回油箱之间还可设置有截止阀 35。
基于上述各实施例及可选时实施方式， 上述正面吊势能回收利用系统 还可包括： 过渡块 33 , 该过渡块 33可集成有减压阃 331和单向阃 332等部 件。 减压阀 331 位于所述正面吊势能回收利用系统的液压系统进油口处， 如设置于为液压系统供油的变量泵 334 出油口处。 单向阀 332位于减压阀 331与蓄能器 34之间， 也就是说， 减压阀 331和单向阀 332依次布置在压 力油源 （变量泵 334 )和蓄能器 34油口之间的进油通道上。
如图 3所示， 蓄能器 34油口与回油箱之间的回油通道上设置有溢流阀 333 , 溢流阀 333位于蓄能器 34的油口处， 并连接有回油箱。
上述实施例中，弹性装置可视为蓄能油缸-蓄能器组合形成的液压系统， 该液压系统可为闭式液压系统， 其工作原理可如图 3 所示， 该液压系统可 共用现有正面吊上给主系统供油的变量泵 334。
例如， 当初次启动系统时， 变量泵 334给系统供油， 从变量泵 334 出 来的压力油， 除了给主系统 P供油外， 还有一部分压力油经过减压阀 331、 单向阀 332进入蓄能器 34 ,当蓄能器 34充液压力达到溢流阀 333设定的压 力时， 溢流阀 333开启， 系统溢流， 溢流阀 333起安全作用。 此时， 变量 泵 334可通过减压阀 331的压力控制， 不再给势能回收利用系统供油， 而 仅给主系统 P供油。 此处， 还可通过在减压阀 331和单向阀 332设置球阀 , 借助球阀对势能回收利用系统进行供油控制。
当需要举升臂架时， 蓄能器 34 中存储的能量释放， 两个蓄能油缸 31 的活塞杆伸出举升臂架， 辅助俯仰油缸为臂架提供举升力。 当需要俯下臂 架时， 蓄能油缸 31辅助俯仰油缸提供支撑力， 两个蓄能油缸 31 的活塞杆 在臂架重力势能的作用下缩回， 将蓄能油缸 31无杆腔的液压油压出， 蓄能 器 34开启充液， 吸收这部分能量存储在蓄能器 34中， 当臂架需要再次举 升时， 被存储起来的这部分能量再释放出来供蓄能油缸 31的举升。
下面结合图 2、 图 3所示，对本实施例正面吊势能回收利用系统实施例 的工作原理进行以下说明：
俯仰油缸缩回时， 臂架俯下， 位于车架体 1和臂架基本段 2之间的弹 性装置可分解一部分臂架对俯仰油缸的压力， 即辅助俯仰油缸对臂架提供 一部分的支撑力， 并将分解承受的臂架俯下的重力势能存储起来。 由于弹 性装置对臂架提供了辅助支撑力， 因此俯仰油缸需要对负载提供的支撑力 得到了降低， 进而俯仰油缸回油路上的回油节流降低， 从而系统发热减小。 并且， 当臂架需再次仰起提起负载时， 弹性装置将在臂架俯下时存储的势 能释放出来， 辅助俯仰油缸举升臂架， 这样， 俯仰油缸所需要提供的举升 力又得到降低， 进一步达到节能的效果。
参照图 4 ,其示出了本实施例所述的正面吊势能回收利用系统另一实施 例。 与图 2、 图 3 中所示的蓄能油缸-蓄能器技术方案不同的是， 本实施例 中， 弹性装置釆用的是安装在车架体 1与臂架基本段 2之间的弹簧 4 , 直接 利用弹簧 4来存储和释放臂架的重力势能。
当臂架俯下时， 弹簧 4提供辅助支撑力并被压下， 臂架的重力势能转 化为弹簧 4的弹性势能存储起来。 当需要举升臂架时， 弹簧 4存储的弹性 势能释放出来并辅助俯仰油缸提供举升力， 辅助臂架的举升。
上述实施例中， 弹性装置釆用弹簧回收利用正面吊势能， 不仅结构简 单容易实现， 而且能量转换方式为重力势能与弹性势能的转换， 能量转化 损失小， 选择合适的弹簧刚度， 可最大程度的回收利用重力势能。
综上所述， 本实施例提供的正面吊势能回收利用系统， 结构简单易于 实施， 实现了对正面吊重力势能的回收和利用， 达到使正面吊系统节能的 效果。 同时， 由于正面吊臂架下俯时原使液压系统发热的能量被回收， 因 而可降低液压系统的发热， 提高液压系统的性能和工作寿命。
本实施例还提供了一种正面吊。 由于本实施例釆用上述任一实施例的 正面吊势能回收利用系统， 该势能回收利用系统具有上述技术效果， 因此， 以上所述仅为本实施例的优选实施例而已， 并不用于限制本实施例， 对于本领域的技术人员来说， 本实施例可以有各种更改和变化。 凡在本实 施例的精神和原则之内， 所作的任何修改、 等同替换、 改进等， 均应包含 在本实施例的保护范围之内。 工业实用性
本披露实施例提供的正面吊及其势能回收利用系统， 能够以简单的结 构实现对正面吊重力势能的回收利用， 达到节能的效果， 同时减小回油节 流损失， 减小系统发热。 因此， 本披露实施例具有工业实用性。

Claims

权利要求书
1. 一种正面吊势能回收利用系统， 其特征在于， 包括：
车架体 (1)；
臂架基本段（ 2 ), 与所述车架体（ 1 )铰接；
用于回收利用正面吊势能的弹性装置， 位于所述车架体（1 )和所述臂 架基本段 (2)之间。
2. 根据权利要求 1所述的正面吊势能回收利用系统， 其特征在于， 所 述弹性装置包括： 蓄能油缸（31)、 液压油管 （32)和蓄能器（34); 其中， 所述蓄能油缸（31 )与所述蓄能器（34)通过所述液压油管 （32)连接。
3. 根据权利要求 2所述的正面吊势能回收利用系统， 其特征在于， 所 述蓄能油缸（31 ) 为单伸出杆油缸， 其活塞杆伸出端铰接在所述臂架基本 段（2) 上， 另一端铰接在所述车架体（1 ) 上。
4.根据权利要求 2或 3所述的正面吊势能回收利用系统，其特征在于， 所述蓄能油缸（31 )为两个或两个以上， 分别布置在所述臂架基本段 (2) 的两侧。
5. 根据权利要求 2至 4任一项所述的正面吊势能回收利用系统， 其特 征在于， 所述蓄能器（34)为两个或两个以上， 分别布置在所述车架体（1 ) 上。
6. 根据权利要求 2至 5任一项所述的正面吊势能回收利用系统， 其特 征在于， 还包括过渡块（33), 所述过渡块（33)上集成有减压阃 (331 ) 和单向阃 ( 332 ), 所述减压阃 (331 ) 和所述单向阃 ( 332 )依次布置在压 力油源和所述蓄能器（34)油口之间的进油通道上。
7. 根据权利要求 2至 6任一项所述的正面吊势能回收利用系统， 其特 征在于， 所述蓄能器 （34) 油口与回油箱之间的回油通道上设置有溢流阀 ( 333 )。
8. 根据权利要求 2至 7任一项所述的正面吊势能回收利用系统， 其特 征在于， 所述蓄能器（34) 的油口与回油箱之间还设置有截止阀 （35)。
9.根据权利要求 1至 8所述的正面吊势能回收利用系统，其特征在于， 所述弹性装置为安装于所述车架体（1 ) 与所述臂架基本段（2)之间的弹 簧（4)。
10. 一种正面吊， 其特征在于， 设置有权利要求 1至 9中任一项所述 的正面吊势能回收利用系统。
PCT/CN2014/080084 2013-09-06 2014-06-17 正面吊及其势能回收利用系统 Ceased WO2015032236A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201320552512.X 2013-09-06
CN201320552512 2013-09-06

Publications (1)

Publication Number Publication Date
WO2015032236A1 true WO2015032236A1 (zh) 2015-03-12

Family

ID=49929833

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2014/080084 Ceased WO2015032236A1 (zh) 2013-09-06 2014-06-17 正面吊及其势能回收利用系统

Country Status (2)

Country Link
CN (2) CN203548438U (zh)
WO (1) WO2015032236A1 (zh)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203548438U (zh) * 2013-09-06 2014-04-16 三一集团有限公司 正面吊势能回收利用系统及正面吊
CN107640704B (zh) * 2017-09-25 2019-01-11 安徽合力股份有限公司 一种正面吊液压能量再生自动控制装置的控制方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997013072A2 (de) * 1995-09-29 1997-04-10 Beringer Hydraulik Ag Dämpfung von druckschwingungen in hydraulikanlagen
US6494124B1 (en) * 2001-07-13 2002-12-17 Carlos Castillo Self-contained hydraulic system
CN101580207A (zh) * 2009-06-15 2009-11-18 江绍成 港口吊车液压节能系统
CN102518606A (zh) * 2011-12-12 2012-06-27 杨双来 用于作业机械的起重臂的升降系统和升降方法及作业机械
CN102691682A (zh) * 2011-03-21 2012-09-26 杨双来 一种利用起重臂自重的势能回收蓄能方法及装置
CN103527573A (zh) * 2013-09-06 2014-01-22 三一集团有限公司 正面吊势能回收利用系统及正面吊

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4761953A (en) * 1984-04-18 1988-08-09 Dynamic Hydraulic Systems, Inc. Hydraulic elevator mechanism
JP2008095788A (ja) * 2006-10-11 2008-04-24 Shin Caterpillar Mitsubishi Ltd エネルギー回生システム
CN101613063B (zh) * 2009-07-13 2012-02-08 齐齐哈尔轨道交通装备有限责任公司 铁路起重机及其吊臂支撑装置
DE102010032415A1 (de) * 2010-07-27 2012-02-02 Hydac Technology Gmbh Vorrichtung zur Rückgewinnung von Energie

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997013072A2 (de) * 1995-09-29 1997-04-10 Beringer Hydraulik Ag Dämpfung von druckschwingungen in hydraulikanlagen
US6494124B1 (en) * 2001-07-13 2002-12-17 Carlos Castillo Self-contained hydraulic system
CN101580207A (zh) * 2009-06-15 2009-11-18 江绍成 港口吊车液压节能系统
CN102691682A (zh) * 2011-03-21 2012-09-26 杨双来 一种利用起重臂自重的势能回收蓄能方法及装置
CN102518606A (zh) * 2011-12-12 2012-06-27 杨双来 用于作业机械的起重臂的升降系统和升降方法及作业机械
CN202391827U (zh) * 2011-12-12 2012-08-22 杨双来 用于作业机械的起重臂的升降系统及作业机械
CN103527573A (zh) * 2013-09-06 2014-01-22 三一集团有限公司 正面吊势能回收利用系统及正面吊
CN203548438U (zh) * 2013-09-06 2014-04-16 三一集团有限公司 正面吊势能回收利用系统及正面吊

Also Published As

Publication number Publication date
CN103527573A (zh) 2014-01-22
CN203548438U (zh) 2014-04-16

Similar Documents

Publication Publication Date Title
CN103629175B (zh) 工作斗液压控制系统与工程车辆
CN103603836B (zh) 工作斗液压控制系统和工程车辆
CN202937532U (zh) 臂架的液压变幅回路和油液混合动力系统
CN104632729B (zh) 一种旋挖钻机主卷扬液压系统
JP5834132B2 (ja) 作業機械のジブの持ち上げシステム及び持ち上げ方法、並びに作業機械
CN108104183B (zh) 一种液压挖掘机斗杆再生装置以及液压挖掘机
CN102518606B8 (zh) 用于作业机械的起重臂的升降系统和升降方法及作业机械
CN103452091B (zh) 用于强夯机的减震系统及具有其的强夯机
CN206014234U (zh) 一种混凝土管片提吊翻转装置
CN103470683B (zh) 臂架支撑装置及工程机械
CN103527573A (zh) 正面吊势能回收利用系统及正面吊
CN110076732A (zh) 双臂式车架翻转装置
CN202322179U (zh) 一种使用方便的货物起吊设备
CN201258230Y (zh) 加装于轮式装载机的起吊装置
CN203222431U (zh) 随车起重机
CN103244516B (zh) 拉簧蓄能油缸式挖掘机斗杆重力势能回收再生装置
CN102976215A (zh) 外挂式起重机高空整体平移装置及平移方法
CN202971389U (zh) 兼作输油管用油缸及多缸多级伸缩臂
CN107986154A (zh) 一种用于大型钢管吊装的吊具
CN201433062Y (zh) 可伸缩式摆动支腿
CN202833368U (zh) 液压系统及集装箱吊具
CN209339202U (zh) 一种单节臂挖掘机
CN208120610U (zh) 一种俯仰升降机构
CN208808339U (zh) 多节垂直折臂擦窗机
CN210214631U (zh) 势能回收机构及正面吊

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 14842546

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 14842546

Country of ref document: EP

Kind code of ref document: A1