WO2012034446A1 - 混凝土搅拌运输车的搅拌筒的操纵系统 - Google Patents

混凝土搅拌运输车的搅拌筒的操纵系统 Download PDF

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Publication number
WO2012034446A1
WO2012034446A1 PCT/CN2011/076975 CN2011076975W WO2012034446A1 WO 2012034446 A1 WO2012034446 A1 WO 2012034446A1 CN 2011076975 W CN2011076975 W CN 2011076975W WO 2012034446 A1 WO2012034446 A1 WO 2012034446A1
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Prior art keywords
cylinder
energized
solenoid valve
electromagnetic valve
mixing drum
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PCT/CN2011/076975
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English (en)
French (fr)
Inventor
喻志云
潘龙勋
陈健晖
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Hunan Zoomlion Special Vehicle Co Ltd
Changsha Zoomlion Heavy Industry Science and Technology Development Co Ltd
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Hunan Zoomlion Special Vehicle Co Ltd
Changsha Zoomlion Heavy Industry Science and Technology Development Co Ltd
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Publication of WO2012034446A1 publication Critical patent/WO2012034446A1/zh
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28CPREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C5/00Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
    • B28C5/42Apparatus specially adapted for being mounted on vehicles with provision for mixing during transport
    • B28C5/4203Details; Accessories
    • B28C5/4206Control apparatus; Drive systems, e.g. coupled to the vehicle drive-system
    • B28C5/422Controlling or measuring devices

Definitions

  • the invention relates to a control system for a mixing drum of a concrete mixer truck. Background technique
  • the operation mode of the mixer drum is mainly divided into mechanical type and electronic control type, for example, CN2259322Y and CN101450511A.
  • the mechanical type has a short service life, low reliability and is easy to damage; the electronic control type has high cost and is not easy to implement. Summary of the invention
  • the present invention provides an operating system of a mixing drum of a concrete mixer truck, the operating system including a variable pump for driving the metering motor and a metering motor for driving The mixing drum, the operating system includes an air control unit that controls the movement of the control handle of the variable pump by pneumatic transmission.
  • the air control unit comprises a gas source, a solenoid valve, a cylinder and a controller, wherein: the cylinder is connected to the gas source through the solenoid valve; a piston rod of the cylinder is connected to the variable pump
  • the controller is electrically connected to the solenoid valve, and controls the movement of the solenoid valve to drive the piston rod of the cylinder to drive the control handle of the variable pump to move.
  • the cylinder is a multi-stage cylinder to control the mixing drum to be in different states. More specifically, the cylinder may be a three-stage cylinder to control the mixing drums to be in a feed, discharge, agitation, and stop state, respectively.
  • the cylinder comprises a cylinder and three stages of pistons each having a piston rod in the cylinder, and two chambers are formed on each side of each stage of the piston.
  • the solenoid valve includes a first solenoid valve, a second solenoid valve, and a third solenoid valve.
  • the intake pipe and the exhaust pipe of the first solenoid valve, the second solenoid valve, and the third solenoid valve are respectively connected to the two chambers on both sides of the corresponding piston.
  • the cylinder includes the following four working states: a first working state: the first electromagnetic valve is de-energized, the second electromagnetic valve is powered, and the third electromagnetic valve is de-energized, and the third-stage piston of the cylinder is at Retracting position; second working state: the first electromagnetic valve is de-energized, the second electromagnetic valve is de-energized, and the third electromagnetic valve is energized, the third-stage piston of the cylinder is in an extended position, the first-stage piston and The second stage piston is in the retracted position; the third working state: the first solenoid valve is energized, the second solenoid valve is energized, and the third solenoid valve is de-energized, and the first stage piston of the cylinder is in the extended position, The second stage piston and the third stage piston are in the retracted position; the fourth working state: the first electromagnetic valve is de-energized, the second electromagnetic valve is de-energized, the third electromagnetic valve is de-energized, and the second-stage piston of the cylinder In the extended position, the first working state
  • the mixing drum when the cylinder is in the first working state, the mixing drum is in a feeding state; when the cylinder is in the second working state, the mixing drum is in a discharging state; when the cylinder is in a third state In the working state, the mixing drum is in a stirring state; when the cylinder is in the fourth working state, the mixing drum is in a stopped state.
  • the handling system includes an indoor steering panel and an outdoor steering panel, the indoor steering panel and the outdoor steering panel being selectively used to control the mixing drum in different states.
  • an indoor/outdoor switch is provided on the indoor control panel to select the indoor control panel or the outdoor control panel to control the mixing drum to be in different states.
  • the operation of the mixing drum is controlled by the air control unit, which is not only simple, convenient, and easy to implement.
  • FIG. 1 is a manipulation of a mixing drum of a concrete mixer truck according to an embodiment of the present invention Schematic diagram of the system.
  • FIGS 2 and 3 are schematic illustrations of one embodiment of an indoor manipulating panel and an outdoor manipulating panel, respectively.
  • 4 and 5 are schematic views of another embodiment of an indoor control panel and an outdoor control panel, respectively. detailed description
  • the control system of the mixing drum of the concrete mixer truck generally includes a variable pump-quantitative motor closed hydraulic circuit.
  • the control handle of the variable pump By adjusting the working state of the variable pump, for example, by mechanical or electronic control, the control handle of the variable pump is in different positions.
  • the working state of the quantitative motor is controlled, and then the working state of the mixing drum can be controlled, for example, in different states such as feeding, discharging, stirring, and stopping.
  • control handle action of the variable pump is controlled by means of air control, thereby controlling the mixing drum to be in different working states.
  • This type of control is not only easy to operate, but also simple to install and easy to implement on concrete mixer trucks.
  • an air control unit mainly includes a gas source 1, a solenoid valve 5, a cylinder 6 and a controller (not shown).
  • the cylinder 6 is connected to the air source 1 through a solenoid valve 5.
  • the piston rod of cylinder 6 is connected to the control handle 8 of a variable pump (not shown).
  • the controller is electrically connected to the solenoid valve 5, and controls the solenoid valve 5 to operate, so that the piston rod of the cylinder 6 can be driven to move, and then the control handle 8 of the variable pump can be driven (for example, rotated) to finally realize the control of the working state of the mixer drum. purpose.
  • reference numeral 2 denotes a filter
  • 3 denotes a pressure reducing valve
  • 4 denotes an oil mister.
  • the mixing drum has multiple working states, for example Such as feeding, discharging, stirring, stopping, etc. Therefore, in order to control the mixing drum to be in different operating states, the cylinder 6 used in the present invention is preferably a multi-stage cylinder (e.g., a three-stage cylinder).
  • the solenoid valve 5 also typically includes a plurality of solenoid valves (e.g., a first solenoid valve 51, a second solenoid valve 52, and a third solenoid valve 53).
  • the cylinder 6 is a three-stage cylinder
  • the solenoid valve 5 includes a first solenoid valve 51, a second solenoid valve 52, and a third solenoid valve 53.
  • the mixing drum corresponding to this embodiment can have four states of feeding, discharging, stirring and stopping.
  • the cylinder 6 is a three-stage cylinder, and there are three stages of pistons each having a piston rod inside the cylinder, and two sides are formed on each side of each stage of the piston.
  • the air chamber, the intake pipe and the exhaust pipe of each solenoid valve are respectively connected to two air chambers on both sides of the corresponding piston. Therefore, by controlling the gain and loss of the first solenoid valve 51, the second solenoid valve 52, and the third solenoid valve 53 to control the communication state of the intake and exhaust pipes, the operating state of the three-stage cylinder can be controlled, thereby The working state of the mixing drum can be controlled.
  • the cylinder 6 may include the following four operating states:
  • the first working state the first solenoid valve 51 is de-energized, the second solenoid valve 52 is energized, and the third solenoid valve 53 is de-energized, and the three-stage piston of the cylinder 6 is in the retracted position;
  • the second working state the first electromagnetic valve 51 is de-energized, the second electromagnetic valve 52 is de-energized, the third electromagnetic valve 53 is energized, the third-stage piston of the cylinder 6 is in the extended position, the first-stage piston and The second stage piston is in the retracted position;
  • the third working state the first solenoid valve 51 is energized, the second solenoid valve 52 is energized, the third solenoid valve 53 is de-energized, the first stage piston of the cylinder 6 is in the extended position, the second stage piston and The third stage piston is in the retracted position;
  • the fourth working state the first electromagnetic valve 51 is de-energized, the second electromagnetic valve 52 is de-energized, the third electromagnetic valve 53 is de-energized, the second-stage piston of the cylinder 6 is in the extended position, the first-stage piston and The third stage piston is in the retracted position.
  • the mixing drum when the cylinder 6 is in the first working state, the mixing drum may be in a feeding state; when the cylinder 6 is in the second working state, the mixing drum may be in a discharging state; When the cylinder 6 is in the third working state, the mixing drum may be in a stirring state; when the cylinder 6 is in the fourth working state, the mixing drum may be in a stopped state.
  • the invention is not limited to this particular implementation. For example, by changing the mounting orientation of the cylinder, or changing the relative positional relationship between the piston rod of the cylinder and the variable pump control handle, the correspondence between the working state of the cylinder and the working state of the mixing drum can be changed.
  • the mixing drum is in a feeding state; when the first solenoid valve 51 is de-energized, the second solenoid valve 52 is de-energized, and the third solenoid valve 53 is energized, the mixing drum is in a discharging state; When the electromagnetic valve 51 is de-energized, the second electromagnetic valve 52 is de-energized, and the third electromagnetic valve 53 is de-energized, the mixing drum is in a stirring state; when the first electromagnetic valve 51 is de-energized, the second electromagnetic valve 52 is de-energized. When the third electromagnetic valve 53 is de-energized, the mixing drum is in a stopped state.
  • the operating system of the present invention may include an indoor operating panel and an outdoor operating panel, the indoor operating panel and the outdoor operating panel being selectively used to control the mixing drum in Different states.
  • the outdoor control panel can be fixed to a suitable location on the concrete mixer truck as needed, or it can be held by the operator.
  • the outdoor control panel can be electrically connected to the concrete mixer truck through a cable or the like, or can be electrically connected to the concrete mixer truck by wireless communication, that is, the state of the mixer drum is controlled by remote control. control.
  • An indoor/outdoor switch can be provided on the indoor control panel to select the indoor control panel or the outdoor control panel to control the mixing drum to be in different states.
  • a selection switch may be respectively disposed on the indoor operation panel and the outdoor operation panel, and the selection switch includes four feeding, discharging, stirring, and stopping. Gear position.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)

Description

混凝土搅拌运输车的搅拌筒的操纵系统 技术领域
本发明涉及混凝土搅拌运输车的搅拌筒的操纵系统。 背景技术
针对目前的混凝土搅拌运输车, 其搅拌筒的操纵方式主要分为机械式 和电控式, 例如 CN2259322Y、 CN101450511A。 机械式使用寿命短, 可靠 性低且易损坏; 电控式成本高, 不容易实现。 发明内容
本发明的目的是提供一种混凝土搅拌运输车的搅拌筒的操纵系统, 其 操纵简单、 方便且容易实现。
为了实现上述目的, 本发明提供一种混凝土搅拌运输车的搅拌筒的操 纵系统, 该操纵系统包括变量泵和定量马达, 所述变量泵用于驱动所述定 量马达, 所述定量马达用于驱动所述搅拌筒, 所述操纵系统包括气控单元, 该气控单元通过气压传动的方式控制所述变量泵的控制手柄动作。
优选地, 所述气控单元包括气源、 电磁阀、 气缸和控制器, 其中: 所 述气缸通过所述电磁阀连接到所述气源; 所述气缸的活塞杆连接到所述变 量泵的控制手柄; 所述控制器与所述电磁阀电连接, 通过控制所述电磁阀 动作, 以驱动所述气缸的活塞杆带动所述变量泵的控制手柄运动。
优选地, 所述气缸为多级气缸, 以控制所述搅拌筒处于不同状态。 更 具体地, 所述气缸可以为三级气缸, 以控制所述搅拌筒分别处于进料、 出 料、 搅拌和停止状态。
优选地, 所述气缸包括缸筒和依次位于该缸筒内的各自具有一个活塞 杆的三级活塞, 每级活塞的两侧分别形成有两个腔室。
优选地, 所述电磁阀包括第一电磁阀、 第二电磁阀和第三电磁阀, 所 述第一电磁阀、 第二电磁阀和第三电磁阀的进气管和排气管分别连接到对 应活塞两侧的所述两个腔室。
优选地, 所述气缸包括如下四个工作状态: 第一工作状态: 所述第一 电磁阀失电、 第二电磁阀得电、 第三电磁阀失电, 所述气缸的三级活塞均 处于缩回位置; 第二工作状态: 所述第一电磁阀失电、 第二电磁阀失电、 第三电磁阀得电, 所述气缸的第三级活塞处于伸出位置, 第一级活塞和第 二级活塞处于缩回位置; 第三工作状态: 所述第一电磁阀得电、 第二电磁 阀得电、 第三电磁阀失电, 所述气缸的第一级活塞处于伸出位置, 第二级 活塞和第三级活塞处于缩回位置; 第四工作状态: 所述第一电磁阀失电、 第二电磁阀失电、 第三电磁阀失电, 所述气缸的第二级活塞处于伸出位置, 第一级活塞和第三级活塞处于缩回位置。
优选地, 当所述气缸处于第一工作状态时, 所述搅拌筒处于进料状态; 当所述气缸处于第二工作状态时, 所述搅拌筒处于出料状态; 当所述气缸 处于第三工作状态时, 所述搅拌筒处于搅拌状态; 当所述气缸处于第四工 作状态时, 所述搅拌筒处于停止状态。
优选地, 所述操纵系统包括室内操纵面板和室外操纵面板, 该室内操 纵面板和室外操纵面板被选择性地用于控制所述搅拌筒处于不同状态。
优选地, 在所述室内操纵面板上具有室内外切换开关, 以选择所述室 内操纵面板或者室外操纵面板来控制所述搅拌筒处于不同状态。
通过上述技术方案, 通过气控单元来控制搅拌筒动作, 不仅操纵简单、 方便且容易实现。 附图说明
附图是用来提供对本发明的进一步理解, 并且构成说明书的一部分, 与下面的具体实施方式一起用于解释本发明, 但并不构成对本发明的限制。 在附图中:
图 1 是根据本发明一种实施方式的混凝土搅拌运输车的搅拌筒的操纵 系统的结构示意图。
图 2和图 3分别是室内操纵面板和室外操纵面板的一种实施方式的示 意图。
图 4和图 5分别是室内操纵面板和室外操纵面板的另一种实施方式的 示意图。 具体实施方式
混凝土搅拌运输车的搅拌筒的操纵系统一般包括变量泵-定量马达闭式 液压回路, 通过调节变量泵的工作状态, 例如通过机械、 电控等方式控制 变量泵的控制手柄处于不同位置, 就可以控制定量马达的工作状态, 继而 可以控制搅拌筒的工作状态, 例如使之处于进料、 出料、 搅拌、 停止等不 同状态。
本发明的关键之处在于利用气控的方式控制变量泵的控制手柄动作, 从而控制搅拌筒处于不同工作状态。 这种控制方式不仅容易操作, 而且布 置简单, 很容易在混凝土搅拌运输车上实现。
以下结合附图对本发明的具体实施方式进行详细说明。应当理解的是, 此处所描述的具体实施方式仅用于说明和解释本发明, 并不用于限制本发 明。
如图 1所示, 根据本发明的一种实施方式, 气控单元主要包括气源 1、 电磁阀 5、 气缸 6和控制器 (未显示)。 气缸 6通过电磁阀 5连接到气源 1。 气缸 6的活塞杆连接到变量泵 (未显示) 的控制手柄 8。 控制器与电磁阀 5 电连接, 控制电磁阀 5动作, 从而可以驱动气缸 6的活塞杆动作, 继而可 以带动变量泵的控制手柄 8动作 (例如转动), 以最终实现控制搅拌筒的工 作状态的目的。
在图 1所示的气控单元中, 附图标记 2表示过滤器, 3表示减压阀, 4 表示油雾器, 这些元件是气动回路中一般均具有的, 本发明对此不再赘述。
对于一般的混凝土搅拌运输车来说, 其搅拌筒具有多个工作状态, 例 如进料、 出料、 搅拌、 停止等状态。 因此, 为了控制搅拌筒处于不同的工 作状态, 本发明使用的气缸 6优选为多级气缸 (例如三级气缸)。 为了对多 级气缸进行控制, 电磁阀 5通常也包括多个电磁阀 (例如第一电磁阀 51、 第二电磁阀 52、 第三电磁阀 53 )。
如图 1所示, 作为一种优选的实施例, 气缸 6为三级气缸, 电磁阀 5 包括第一电磁阀 51、 第二电磁阀 52和第三电磁阀 53。 该实施例所对应的 搅拌筒可以具有进料、 出料、 搅拌和停止共四个状态。
作为一种优选的实施例, 如图 1所示, 所述气缸 6为三级气缸, 在缸 筒内部具有三级各自带有活塞杆的活塞, 在每级活塞的两侧分别形成有两 个气室, 每个电磁阀的进气管和排气管分别连接到对应活塞两侧的两个气 室。 因此, 通过控制第一电磁阀 51、 第二电磁阀 52和第三电磁阀 53的得、 失电以控制其进、 排气管的连通状态, 就可以控制该三级气缸的工作状态, 从而可以控制搅拌筒的工作状态。
具体而言, 例如, 作为一个例子, 所述气缸 6可以包括如下四个工作 状态:
第一工作状态: 所述第一电磁阀 51失电、 第二电磁阀 52得电、 第三 电磁阀 53失电, 所述气缸 6的三级活塞均处于缩回位置;
第二工作状态: 所述第一电磁阀 51失电、 第二电磁阀 52失电、 第三 电磁阀 53得电, 所述气缸 6的第三级活塞处于伸出位置, 第一级活塞和第 二级活塞处于缩回位置;
第三工作状态: 所述第一电磁阀 51得电、 第二电磁阀 52得电、 第三 电磁阀 53失电, 所述气缸 6的第一级活塞处于伸出位置, 第二级活塞和第 三级活塞处于缩回位置;
第四工作状态: 所述第一电磁阀 51失电、 第二电磁阀 52失电、 第三 电磁阀 53失电, 所述气缸 6的第二级活塞处于伸出位置, 第一级活塞和第 三级活塞处于缩回位置。 相应地, 当所述气缸 6处于第一工作状态时, 所述搅拌筒可以处于进 料状态; 当所述气缸 6处于第二工作状态时, 所述搅拌筒可以处于出料状 态; 当所述气缸 6处于第三工作状态时, 所述搅拌筒可以处于搅拌状态; 当所述气缸 6处于第四工作状态时, 所述搅拌筒可以处于停止状态。 当然, 本发明并不局限于这种具体的实现方式。 例如, 通过改变气缸的安装方位, 或者改变气缸的活塞杆与变量泵控制手柄的相对位置关系, 均可以改变气 缸的工作状态与搅拌筒的工作状态之间的对应关系。
另外, 通过变换第一电磁阀 51、 第二电磁阀 52和第三电磁阀 53与气 缸 6的连接关系, 或者互换任意电磁阀的进、 排气管与气缸 6的连接位置, 或者改变三个电磁阀的得、 失电顺序, 同样可以实现搅拌筒的进料、 出料、 搅拌、 停止状态。 例如, 将第二电磁阀 52与气缸 6的连接位置互换, 可以 得到如下结果: 当所述第一电磁阀 51得电、 第二电磁阀 52失电、 第三电 磁阀 53失电时, 所述搅拌筒处于进料状态; 当所述第一电磁阀 51失电、 第二电磁阀 52失电、 第三电磁阀 53得电时, 所述搅拌筒处于出料状态; 当所述第一电磁阀 51失电、 第二电磁阀 52失电、 第三电磁阀 53失电时, 所述搅拌筒处于搅拌状态; 当所述第一电磁阀 51失电、 第二电磁阀 52得 电、 第三电磁阀 53失电时, 所述搅拌筒处于停止状态。
如图 2和图 3所示, 为了控制电磁阀动作, 本发明的操纵系统可以包 括室内操纵面板和室外操纵面板, 该室内操纵面板和室外操纵面板被选择 性地用于控制所述搅拌筒处于不同状态。
所述室外操纵面板可以根据需要固定于混凝土搅拌运输车上合适的位 置, 或者也可以由操作者手持。 当由操作者手持时, 该室外操纵面板可以 通过电缆等与混凝土搅拌运输车电连接, 或者也可通过无线通讯的方式与 混凝土搅拌运输车电连接, 即通过遥控的方式对搅拌筒的状态进行控制。
在所述室内操纵面板上可以具有室内外切换开关, 以选择所述室内操 纵面板或者室外操纵面板来控制所述搅拌筒处于不同状态。 在所述室内操纵面板上具有进料、 出料、 搅拌和停止四个开关, 分别 对应所述搅拌筒的进料、 出料、 搅拌和停止状态。
在所述室外操纵面板上具有进料、 出料、 搅拌和停止四个开关, 分别 对应所述搅拌筒的进料、 出料、 搅拌和停止。
如图 4和图 5所示, 作为另一种实施例, 在所述室内操纵面板和所述 室外操纵面板上可以分别具有选择开关, 该选择开关包括进料、 出料、 搅 拌和停止四个档位。
以上结合附图详细描述了本发明的优选实施方式, 但是, 本发明并不 限于上述实施方式中的具体细节, 在本发明的技术构思范围内, 可以对本 发明的技术方案进行多种简单变型, 例如改变气缸的级数, 增加或者减少 搅拌筒的工作状态, 变换气缸工作状态与搅拌筒工作状态之间的对应关系 等等, 这些简单变型均属于本发明的保护范围。
另外需要说明的是, 在上述具体实施方式中所描述的各个具体技术特 征, 在不矛盾的情况下, 可以通过任何合适的方式进行组合, 例如, 在室 内操纵面板上可以具有四个开关或者一个选择开关 (包括四个档位), 在室 外操纵面板上也可以具有四个开关或者一个选择开关 (包括四个档位), 这 两种开关形式可以任意组合, 即室内操纵面板上可以具有四个开关, 室外 操纵面板上可以具有一个选择开关, 或者反之, 这些组合方式都应当属于 本发明公开的范围。

Claims

权利要求
1、 一种混凝土搅拌运输车的搅拌筒的操纵系统, 该操纵系统包括变量 泵和定量马达, 所述变量泵用于驱动所述定量马达, 所述定量马达用于驱 动所述搅拌筒, 其特征在于,
所述操纵系统包括气控单元, 该气控单元通过气压传动的方式控制所 述变量泵的控制手柄 (8 ) 动作。
2、 根据权利要求 1所述的操纵系统, 其特征在于, 所述气控单元包括 气源 (1 )、 电磁阀 (5 )、 气缸 (6) 和控制器, 其中:
所述气缸 (6) 通过所述电磁阀 (5 ) 连接到所述气源 (1 );
所述气缸 (6) 的活塞杆连接到所述变量泵的控制手柄 (8 );
所述控制器与所述电磁阀 (5 ) 电连接, 通过控制所述电磁阀 (5 ) 动 作, 以驱动所述气缸 (6) 的活塞杆带动所述变量泵的控制手柄 (8 ) 运动。
3、 根据权利要求 2所述的操纵系统, 其特征在于, 所述气缸 (6) 为 多级气缸, 以控制所述搅拌筒处于不同状态。
4、 根据权利要求 2所述的操纵系统, 其特征在于, 所述气缸 (6) 为 三级气缸, 以控制所述搅拌筒分别处于进料、 出料、 搅拌和停止状态。
5、 根据权利要求 4所述的操纵系统, 其特征在于, 所述气缸 (6) 包 括缸筒和依次位于该缸筒内的各自具有一个活塞杆的三级活塞, 每级活塞 的两侧分别形成有两个腔室。
6、 根据权利要求 5所述的操纵系统, 其特征在于, 所述电磁阀 (5 ) 包括第一电磁阀 (51 )、 第二电磁阀 (52) 和第三电磁阀 (53 ), 所述第一 电磁阀 (51 )、 第二电磁阀 (52) 和第三电磁阀 (53 ) 的进气管和排气管分 别连接到对应活塞两侧的所述两个腔室。
7、 根据权利要求 6所述的操纵系统, 其特征在于, 所述气缸 (6) 包 括如下四个工作状态:
第一工作状态: 所述第一电磁阀 (51 ) 失电、 第二电磁阀 (52) 得电、 第三电磁阀 (53 ) 失电, 所述气缸 (6) 的三级活塞均处于缩回位置;
第二工作状态: 所述第一电磁阀 (51 ) 失电、 第二电磁阀 (52) 失电、 第三电磁阀 (53 ) 得电, 所述气缸 (6) 的第三级活塞处于伸出位置, 第一 级活塞和第二级活塞处于缩回位置;
第三工作状态: 所述第一电磁阀 (51 ) 得电、 第二电磁阀 (52) 得电、 第三电磁阀 (53 ) 失电, 所述气缸 (6) 的第一级活塞处于伸出位置, 第二 级活塞和第三级活塞处于缩回位置;
第四工作状态: 所述第一电磁阀 (51 ) 失电、 第二电磁阀 (52) 失电、 第三电磁阀 (53 ) 失电, 所述气缸 (6) 的第二级活塞处于伸出位置, 第一 级活塞和第三级活塞处于缩回位置。
8、 根据权利要求 7所述的操纵系统, 其特征在于:
当所述气缸 (6) 处于第一工作状态时, 所述搅拌筒处于进料状态; 当所述气缸 (6) 处于第二工作状态时, 所述搅拌筒处于出料状态; 当所述气缸 (6) 处于第三工作状态时, 所述搅拌筒处于搅拌状态; 当所述气缸 (6) 处于第四工作状态时, 所述搅拌筒处于停止状态。
9、 根据权利要求 1-8中任意一项所述的操纵系统, 其特征在于, 所述 操纵系统包括室内操纵面板和室外操纵面板, 该室内操纵面板和室外操纵 面板被选择性地用于控制所述搅拌筒处于不同状态。
10、 根据权利要求 9所述的操纵系统, 其特征在于, 在所述室内操纵 面板上具有室内外切换开关, 以选择所述室内操纵面板或者室外操纵面板 来控制所述搅拌筒处于不同状态。
PCT/CN2011/076975 2010-09-15 2011-07-08 混凝土搅拌运输车的搅拌筒的操纵系统 Ceased WO2012034446A1 (zh)

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