WO2011029328A1 - 可隔离警示漏浆的混凝土搅拌装置 - Google Patents

可隔离警示漏浆的混凝土搅拌装置 Download PDF

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Publication number
WO2011029328A1
WO2011029328A1 PCT/CN2010/074193 CN2010074193W WO2011029328A1 WO 2011029328 A1 WO2011029328 A1 WO 2011029328A1 CN 2010074193 W CN2010074193 W CN 2010074193W WO 2011029328 A1 WO2011029328 A1 WO 2011029328A1
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Prior art keywords
shaft
warning
concrete
slurry
hydraulic motor
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Ceased
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PCT/CN2010/074193
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English (en)
French (fr)
Inventor
高杨
杨新华
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Hunan Sany Intelligent Control Equipment Co Ltd
Sany Heavy Industry Co Ltd
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Hunan Sany Intelligent Control Equipment Co Ltd
Sany Heavy Industry Co Ltd
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Publication of WO2011029328A1 publication Critical patent/WO2011029328A1/zh
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
    • B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
    • B28C5/0806—Details; Accessories
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
    • B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
    • B28C5/0806—Details; Accessories
    • B28C5/0831—Drives or drive systems, e.g. toothed racks, winches
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/164—Sealings between relatively-moving surfaces the sealing action depending on movements; pressure difference, temperature or presence of leaking fluid

Definitions

  • the utility model relates to the field of engineering machinery, in particular to a concrete stirring device capable of isolating warning leakage. Background technique
  • the concrete mixing device in the concrete pump is as shown in Fig. 1: the hydraulic motor 1 is mounted on the support base 5, the support base 5 is fixed on the hopper 6, the agitating shaft 2 is connected to the motor, and the hydraulic motor 1 drives the stirring shaft 2 To drive the stirring device to stir the concrete.
  • a sealing structure 4 is usually provided between the stirring shaft 2 and the hopper 6.
  • the agitator shaft 2 rotates, the wear of the seal structure 4 is intensified, and the re-reliable seal structure eventually leaks, that is, the so-called "slurry" occurs.
  • the problem of slurry leakage of the stirring device has always been a technical problem that is difficult to completely solve.
  • the slurry leakage usually does not require the stirring device to stop immediately, but as the wear is further aggravated, the following hazards will occur: First, there is no foreseeable seal In the case of damage, it will cause sudden failure of the stirring device and cause unplanned shutdown. Second, the concrete mortar will flow along the stirring shaft 2 to the hydraulic motor 1, which may damage the oil seal of the hydraulic motor 1 and enter the hydraulic system, causing the hydraulic oil to be contaminated. Moreover, the sand and gravel in the slurry will cause fatal damage to the hydraulic components, and even cause the system to collapse.
  • the utility model aims at observing the leakage of the above prior art, providing an oil seal which can effectively observe the slurry leakage, effectively isolate the slurry to prevent damage to the hydraulic motor, ensure the safety of the hydraulic system, improve the service life of the hydraulic system, and has a simple and practical structure and low cost.
  • a concrete stirring device capable of isolating the warning slurry leakage, comprising a hydraulic motor, a support base and a stirring shaft, wherein the hydraulic motor is mounted on the support base, The agitating shaft is connected to the hydraulic motor, and a sealing structure is arranged on the agitating shaft, and an agitating plate is arranged on the agitating shaft between the sealing structure and the hydraulic motor or the output shaft of the hydraulic motor.
  • the support seat is provided with a slurry observation window
  • the slurry observation window is opened below the support base
  • the spacer disk is a disc made of rubber, nylon, plastic, ceramic or metal;
  • the spacer disc interference fit is sleeved on the stirring shaft or the output shaft; or the spacer disc is fixed to the end of the stirring shaft or the output shaft.
  • the utility model has the following advantages: the utility model provides an isolation disc on the stirring shaft between the sealing structure and the hydraulic motor or the output shaft of the hydraulic motor, and timely discovers from the two aspects of the slurry leakage warning and isolation to eliminate the cause
  • the possible damage caused by slurry leakage when the slurry flows out along the stirring shaft, the insulation plate will block the slurry and further damage the hydraulic motor oil seal and the pollution hydraulic system along the stirring shaft.
  • the support seat also has a slurry observation window. And the slurry observation window is preferably opened under the support seat, and the slurry leakage automatically flows along the stirring shaft to the isolation plate, and the falling slurry will flow out from the open support seat, so the operator can easily know the sealing structure.
  • the interference plate interference fit is sleeved on the stirring shaft or the output shaft, or is installed at the end of the stirring shaft or the output shaft. Since the stirring shaft or the output shaft drives the isolation disc to rotate, the isolation disc can also be centrifuged.
  • the concrete leakage flowing to the isolation plate can be used not only for the new concrete mixing device, but also for the modification of the existing concrete mixing device, and has the advantages of simple and practical structure, simple installation, low cost and reliable performance.
  • FIG. 1 is a partial structural schematic view of a prior art concrete mixing device
  • Figure 2 is a schematic structural view of a first embodiment of the present invention
  • FIG. 3 is a schematic structural view of a support base in the first embodiment
  • Figure 4 is a schematic structural view of a second embodiment of the present invention.
  • Figure 5 is a schematic structural view of a third embodiment of the present invention.
  • Figure 6 is a schematic structural view of a fourth embodiment of the present invention.
  • Figure 7 is a schematic view showing the structure of the support base in the second, third and fourth embodiments.
  • a concrete stirring device for a concrete pump includes a hydraulic motor 1, a stirring shaft 2, an isolating plate 3, a sealing structure 4, and a support base 5.
  • the hydraulic motor 1 is mounted on the support base 5, and the support base 5 is fixed to the hopper 6 of the concrete pump by bolts, and one end of the agitating shaft 2 is inserted into the shaft of the hydraulic motor 1, and the hydraulic pressure
  • the motor 1 is mated by a spline connection and the other end is extended into the hopper 6.
  • the sealing shaft 2 is provided with a sealing structure 4 for a shaft seal between the stirring shaft 2 and the hopper 6.
  • the separating disc 3 is sleeved on the stirring shaft 2 between the sealing structure 4 and the hydraulic motor 1, and the insulating disc 3 is rubber. Or a centrally-opened disc made of nylon, and the spacer disc 3 is fitted over the stirring shaft 2 with an interference fit.
  • the support base 5 is a cylindrical sleeve structure, and the two end faces thereof are respectively connected with the hydraulic motor 1 and the hopper 6, and the side of the support is provided with a slurry observation window 51 for eliminating slurry leakage, in order to facilitate the removal of the concrete leakage.
  • the slurry, the slurry observation window 51 is opened below the support base 5.
  • the concrete stirring device of the second embodiment of the present invention is basically the same as the first embodiment, and the main difference is that the shaft of the hydraulic motor 1 is inserted into the stirring shaft 2, and the stirring shaft 2 is splined. Connection fit. Since the output connection structure is relatively compact, the support base 5 has a conical sleeve structure as shown in FIG. 7, and the support base 5 has a slurry observation window 51 on the side of the cone, and the slurry observation window 51 is disposed below the support base 5.
  • the concrete stirring device of the third embodiment of the present invention is basically the same as the second embodiment, and the main difference is that the spacer disk 3 is fixed to the end of the stirring shaft 2 by bolts, in this embodiment.
  • the spacer disc 3 may be a centrally-perforated disc made of a hard material such as plastic, ceramic or metal.
  • the spacer disk 3 may be bolted to the end of the output shaft of the hydraulic motor.
  • the concrete agitation device of the fourth embodiment of the present invention is basically the same as the second embodiment, and the main difference is that the interference plate 3 is fitted over the output shaft 11 of the hydraulic motor 1.
  • the agitating shaft 2 rotates. If the sealing structure 4 wears, the concrete slurry will pass through the sealing structure 4 and flow along the agitating shaft 2 to the separating plate. 3, falling along the spacer disk 3, since the spacer disk 3 rotates with the stirring shaft 2, the spacer disk 3 centrifugally pulsates the concrete slurry attached thereto, and the concrete slurry flows out from the slurry observation window 51 below the support base 5. The operator can judge whether the stirring device needs to be shut down for maintenance by observing the slurry leakage condition of the slurry observation window 51.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Description

可隔离警示漏浆的混凝土搅拌装置 技术领域
本实用新型涉及工程机械领域， 具体涉及一种可隔离警示漏浆的混凝土搅拌装置。 背景技术
目前一般的混凝土泵中的混凝土搅拌装置如图 1所示：液压马达 1安装于支撑座 5上， 支撑座 5固定于料斗 6上， 搅拌轴 2与马达相连， 液压马达 1通过驱动搅拌轴 2来驱动搅拌 装置对混凝土进行搅拌。 为了防止搅拌装置中的混凝土浆料发生泄漏， 通常在搅拌轴 2 和料斗 6之间设有密封结构 4。 但是， 随着搅拌轴 2的旋转， 密封结构 4的磨损不断加剧， 再可靠的密封结构最终也会出现泄漏， 即出现所谓 "漏浆" 。 混凝土输送泵中， 搅拌装 置的漏浆问题一直是个难以彻底解决的技术问题， 漏浆通常不需要搅拌装置立刻停机， 但其随着磨损的进一步加剧， 会产生如下危害： 一是在没有预知密封已破坏的情况下， 会导致搅拌装置的突然失效而造成意外停机； 二是混凝土砂浆会沿着搅拌轴 2流向液压 马达 1， 可能破坏液压马达 1的油封而进入液压系统， 导致液压油被污染， 而且漏浆里的 砂石会对液压元件产生致命的破坏， 甚至造成系统崩溃， 经验也证明混凝土输送泵中， 液压马达轴端油封被破坏通常会伴随液压系统的严重污染，而液压系统的污染将会对混 凝土泵造成致命的伤害， 大大地增加了机器的维修成本， 也相应增加了由于维护、 修理 而花费的时间， 从而影响了工程工期和工程质量。 目前大多数现有技术就解决混凝土泵 搅拌漏浆问题的思路都放在如何"不漏浆 "上， 即加强搅拌轴的密封， 如增加密封元件、 改善密封结构， 但由于混凝土工况的恶劣和磨损的必然存在， 都不能彻底解决漏浆所带 来的种种问题。
棚新型
本实用新型针对上述现有技术的缺点， 提供一种可观察漏浆情况、 有效隔离漏浆以 防止破坏液压马达的油封、 保证液压系统安全、 提高液压系统的使用寿命、 结构简单实 用、 成本低廉、 性能可靠且安装简易的可隔离警示漏浆的混凝土搅拌装置。
为了解决上述技术问题， 本实用新型采用的技术方案为： 一种可隔离警示漏浆的混 凝土搅拌装置， 它包括液压马达、 支撑座和搅拌轴， 所述液压马达安装于支撑座上， 所 述搅拌轴与液压马达连接， 在搅拌轴上设有密封结构， 在密封结构和液压马达之间的搅 拌轴或液压马达的输出轴上设有隔离盘。 作为本技术方案的进一步改进：
所述支撑座上设有排浆观察窗；
所述排浆观察窗开设于支撑座的下方；
所述隔离盘为橡胶、 尼龙、 塑料、 陶瓷或者金属制成的圆盘；
所述隔离盘过盈配合套设于搅拌轴或输出轴上； 或者， 所述隔离盘固定于搅拌轴或 者输出轴的端部。
本实用新型具有以下优点：本实用新型通过在密封结构和液压马达之间的搅拌轴上 或液压马达的输出轴上设有隔离盘，从漏浆警示和隔离两个方面来及时发现以消除因漏 浆而可能产生的危害， 当漏浆沿搅拌轴流出的时候， 隔离盘会阻隔漏浆进一步沿着搅拌 轴破坏液压马达油封、 污染液压系统， 支撑座上还设有排浆观察窗， 且排浆观察窗优选 开设于支撑座的下方， 漏浆沿着搅拌轴流到隔离盘处自动掉落， 掉落的漏浆会从开口的 支撑座流出， 因此操作人员可轻松知道密封结构的磨损状况， 有计划地停机检修， 这样 可以降低操作人员的劳动强度和复杂度， 提高搅拌装置的无故障工作时间， 提高搅拌装 置的使用寿命。 在本实用新型中， 隔离盘过盈配合套设于搅拌轴或输出轴上，或者安装 于搅拌轴或输出轴的端部， 由于搅拌轴或输出轴带动隔离盘转动， 隔离盘还可以离心甩 落流到隔离盘处的混凝土漏浆， 既可以用于新混凝土搅拌装置， 还可以用于现有混凝土 搅拌装置的改造， 具有结构简单实用、 安装简易、 成本低廉、 性能可靠的优点。
附图说明
图 1为现有技术的混凝土搅拌装置局部结构示意图；
图 2为本实用新型的第一实施例的结构示意图；
图 3为第一实施例中支撑座的结构示意图；
图 4为本实用新型的第二实施例的结构示意图；
图 5为本实用新型的第三实施例的结构示意图；
图 6为本实用新型的第四实施例的结构示意图；
图 7为第二、 三、 四实施例中支撑座的结构示意图。
具体实施方式
如图 2所示， 本实用新型第一实施例中， 一种混凝土泵的混凝土搅拌装置包括液压 马达 1、 搅拌轴 2、 隔离盘 3、 密封结构 4和支撑座 5。 液压马达 1安装于支撑座 5上， 支撑 座 5通过螺栓固定于混凝土泵的料斗 6上， 搅拌轴 2的一端插入液压马达 1的轴内， 与液压 马达 1通过花键连接配合， 另一端伸入料斗 6内。 在搅拌轴 2上设有用于搅拌轴 2与料斗 6 之间轴密封的密封结构 4， 隔离盘 3套设于在密封结构 4和液压马达 1之间的搅拌轴 2上， 隔离盘 3为橡胶或者尼龙制成的中心开孔的圆盘， 隔离盘 3过盈配合套设于搅拌轴 2上。 如图 3所示， 支撑座 5为圆柱形套筒结构， 它的两个端面分别连接液压马达 1与料斗 6， 其 侧面开设有用于排除漏浆的排浆观察窗 51， 为了便于排除混凝土漏浆， 排浆观察窗 51开 设于支撑座 5的下方。
如图 4所示， 本实用新型第二实施例的混凝土搅拌装置， 和第一实施例基本相同， 其主要区别点为： 液压马达 1的轴插入搅拌轴 2内， 与搅拌轴 2通过花键连接配合。 由于 输出连接结构比较紧凑， 支撑座 5为如图 7所示的圆锥套结构， 支撑座 5在圆锥侧面上开 设有排浆观察窗 51， 排浆观察窗 51设于支撑座 5的下方。
如图 5所示， 本实用新型第三实施例的混凝土搅拌装置， 和第二实施例基本相同， 其主要区别点为： 隔离盘 3通过螺栓固定于搅拌轴 2的端部， 在本实施例中， 隔离盘 3可 为塑料、 陶瓷或者金属等硬质材料制成中心开孔的圆盘。 此外， 也可以将隔离盘 3通过 螺栓固定于液压马达输出轴的端部。
如图 6所示， 本实用新型第四实施例的混凝土搅拌装置， 和第二实施例基本相同， 其主要区别点为： 隔离盘 3过盈配合套设于液压马达 1的输出轴 11上。
在本实用新型的上述实施例中，当液压马达 1驱动搅拌装置时，搅拌轴 2发生转动， 若密封结构 4发生磨损， 混凝土漏浆会穿过密封结构 4并沿搅拌轴 2流到隔离盘 3处， 沿着隔离盘 3下落， 由于隔离盘 3随搅拌轴 2旋转， 隔离盘 3将附着其上的混凝土漏浆 离心甩出， 混凝土漏浆从支撑座 5下方的排浆观察窗 51流出， 操作人员可以通过观察 排浆观察窗 51的漏浆状况来判断搅拌装置是否需要停机检修。

Claims

权 利 要 求
1、 一种可隔离警示漏浆的混凝土搅拌装置， 它包括液压马达 （1) 、 支撑座 （5) 和搅拌轴 （2) ， 所述液压马达 （1) 安装于支撑座 （5) 上， 所述搅拌轴 （2) 与液压马 达 （1) 连接， 搅拌轴 （2) 上设有密封结构 （4) ， 其特征在于， 在所述密封结构 （4) 和液压马达 （1) 之间的搅拌轴 （2) 上或液压马达 （1) 的输出轴 （11) 上设有隔离盘 (3) 。
2、 根据权利要求 1所述的可隔离警示漏浆的混凝土搅拌装置， 其特征在于： 所述 支撑座 （5) 上设有排浆观察窗 （51) 。
3、 根据权利要求 2所述的可隔离警示漏浆的混凝土搅拌装置， 其特征在于： 所述 排浆观察窗 （51) 开设于支撑座 （5) 的下方。
4、 根据权利要求 1或 2或 3所述的可隔离警示漏浆的混凝土搅拌装置， 其特征在 于： 所述隔离盘 （3) 为橡胶、 尼龙、 塑料、 陶瓷或者金属制成的圆盘。
5、 根据权利要求 4所述的可隔离警示漏浆的混凝土搅拌装置， 其特征在于： 所述 隔离盘 （3) 过盈配合套设于搅拌轴 （2) 或输出轴 （11) 上。
6、 根据权利要求 4所述的可隔离警示漏浆的混凝土搅拌装置， 其特征在于： 所述 隔离盘 （3) 固定于搅拌轴 （2) 或输出轴 （11) 的端部。
7、 根据权利要求 1或 2或 3所述的可隔离警示漏浆的混凝土搅拌装置， 其特征在 于： 所述隔离盘 （3) 过盈配合套设于搅拌轴 （2) 或输出轴 （11) 上。
8、 根据权利要求 1或 2或 3所述的可隔离警示漏浆的混凝土搅拌装置， 其特征在 于： 所述隔离盘 （3) 固定于搅拌轴 （2) 或输出轴 （11) 的端部。
PCT/CN2010/074193 2009-09-09 2010-06-22 可隔离警示漏浆的混凝土搅拌装置 Ceased WO2011029328A1 (zh)

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Cited By (1)

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CN111986459A (zh) * 2020-09-03 2020-11-24 山东中恒建设集团有限公司 一种钻孔灌注桩施工辅助装置

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