WO2013067867A1 - 自流平混凝土砂浆灌注机 - Google Patents

自流平混凝土砂浆灌注机 Download PDF

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Publication number
WO2013067867A1
WO2013067867A1 PCT/CN2012/082064 CN2012082064W WO2013067867A1 WO 2013067867 A1 WO2013067867 A1 WO 2013067867A1 CN 2012082064 W CN2012082064 W CN 2012082064W WO 2013067867 A1 WO2013067867 A1 WO 2013067867A1
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WIPO (PCT)
Prior art keywords
self
rod
concrete mortar
leveling concrete
filling machine
Prior art date
Application number
PCT/CN2012/082064
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English (en)
French (fr)
Inventor
尹友中
丁伊章
王俊杰
Original Assignee
中联重科股份有限公司
湖南中联重科专用车有限责任公司
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Application filed by 中联重科股份有限公司, 湖南中联重科专用车有限责任公司 filed Critical 中联重科股份有限公司
Publication of WO2013067867A1 publication Critical patent/WO2013067867A1/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
    • B28C5/08Apparatus 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
    • B28C5/10Mixing in containers not actuated to effect the mixing
    • B28C5/12Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers
    • B28C5/16Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers the stirrers having motion about a vertical or steeply inclined axis
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/05Stirrers
    • B01F27/11Stirrers characterised by the configuration of the stirrers
    • B01F27/114Helically shaped stirrers, i.e. stirrers comprising a helically shaped band or helically shaped band sections
    • B01F27/1145Helically shaped stirrers, i.e. stirrers comprising a helically shaped band or helically shaped band sections ribbon shaped with an open space between the helical ribbon flight and the rotating axis
    • B01F27/11451Helically shaped stirrers, i.e. stirrers comprising a helically shaped band or helically shaped band sections ribbon shaped with an open space between the helical ribbon flight and the rotating axis forming open frameworks or cages
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/80Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
    • B01F27/92Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with helices or screws
    • B01F27/922Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with helices or screws with two or more helices, e.g. with intermeshing helices

Definitions

  • the present invention relates to a self-leveling concrete mortar filling machine capable of reducing the gas content of self-leveling concrete and preventing segregation of self-leveling concrete, and is applicable to high-speed rail CRTS III track plate construction.
  • High-speed rail CRTSIII track plates are an alternative to CRTS I and CRTS II plate slag-free tracks.
  • the cushion used has been changed from cement asphalt mortar to self-leveling concrete mortar (also called self-compacting concrete), and its construction cost is greatly reduced.
  • CRTS I and CRTS II plate slag-free track are the main structural forms of high-speed railway.
  • a layer of cement asphalt mortar is filled between the track plate and the roadbed to fill, level, bear and properly cushion. , to ensure the comfort and safety of high-speed trains and the durability and maintainability of the track panels.
  • the construction process of the cement asphalt mortar cushion is complicated and high in cost.
  • the self-leveling concrete mortar is stirred by a twin-shaft concrete mixer. The gas content is high, and the middle is transported by the mixing tanker. After the site is constructed, the rail plate is directly poured, as shown in Figure 1.
  • the self-leveling concrete mortar has a high gas content and segregation.
  • the CRTSIII type track plate requires self-leveling concrete mortar to have a low gas content and prevent segregation, which may lead to the unqualified quality of the CRTSIII type track plate.
  • SUMMARY OF THE INVENTION The object of the present invention is to provide a self-leveling concrete mortar filling machine, which can reduce the gas content of the self-leveling concrete and prevent the segregation of the self-leveling concrete, and can be applied to the construction of the high-speed rail CRTS III track plate.
  • the present invention provides a self-leveling concrete mortar filling machine, comprising: a pot body having a feed port installed at the top thereof and a discharge port near the bottom; at least one stirring mechanism including a drive motor and being vertically disposed a stirring shaft in the pot body, and a first set of paddles for lifting up the mortar and a second set of paddles for pressing down the mortar between the upper and lower supports mounted on the agitating shaft; and defoaming
  • the paddle is mounted on the agitating shaft and above the upper support, and includes at least one cantilever extending radially along the agitating shaft and a plurality of defoaming racks radially arranged on the cantilever.
  • each of the first set of paddles and the second set of paddles are propeller blades and are opposite in rotation, wherein the first group of blades has a helix radius greater than a second group of blades.
  • the agitating shaft is supported on the top of the pot body. Further, the bottom of the agitating shaft is mounted with a blade pad adapted to the bottom wall of the pot body. Further, the agitation mechanism further includes a support rod mounted on the agitating shaft and supporting a middle portion of the first group of paddles and the second group of paddles.
  • the at least one stirring mechanism includes a first agitating mechanism and a second agitating mechanism arranged in parallel, wherein the position of the bottom wall portion of the pot body corresponding to the second agitating mechanism is lower than the bottom of the pot body corresponding to the first agitating mechanism
  • the position of the wall portion, the feed port is disposed on a side close to the first agitation mechanism, and the discharge port is disposed further to the second agitation mechanism.
  • the self-leveling concrete mortar perfusion machine further includes a moving trolley supporting the pan body. Further, a vibration motor is disposed on the feed port. Further, the height position of the above-mentioned defoaming paddle above the upper support is adjustable.
  • each of the rack bars is U-shaped, and each rack bar on the same cantilever is integrally formed in a wave shape.
  • each of the above-mentioned racks is U-shaped and distributed in an inclined plane passing through the cantilever and perpendicular to the horizontal plane or at an angle to the horizontal plane. Further, the upper side of the inclined plane is inclined forward toward the rotation direction of the stirring shaft to reduce splashing of the slurry and further pressurizing the slurry.
  • the upper support and the lower support each include a first rod extending along a first radial direction and a second rod extending along an opposite second radial direction, the first set of blades having two outer pulp sheets, two The upper ends of the outer pulp sheets are respectively connected to the outer end portions of the first rods of the upper support and the outer end portions of the second rods of the upper support, and the lower ends of the two outer pulp sheets are respectively connected to the first rods of the lower support
  • the outer end of the second rod of the outer end portion and the lower support, the second set of paddles has two inner pulp sheets, and the upper ends of the two outer pulp sheets are respectively connected to the middle and upper branches of the first rod of the upper support In the middle of the second rod of the seat, the lower ends of the two outer blades are respectively connected to the middle of the first rod of the lower support and the middle of the second rod of the lower support.
  • the self-leveling concrete mortar filling machine of the invention is a special equipment for exhausting and segregation prevention before self-leveling concrete mortar is poured, which can ensure the prevention of segregation during the flow process of the self-leveling concrete, and can effectively control the gas content inside the concrete. Within the specified range, its structure is simple and its performance is reliable.
  • FIG. 1 shows a flow chart of a prior art self-leveling concrete mortar construction for high-speed rail CRTS III track slab construction
  • Figure 2 shows a self-leveling concrete mortar for high-speed rail CRTS III track slab construction according to the present invention
  • FIG. 3 is a schematic structural view of a self-leveling concrete mortar filling machine for high-speed rail CRTS III track plate construction according to the present invention
  • FIG. 4 is a view of the self-leveling concrete mortar filling machine shown in FIG.
  • Figure 5 is an enlarged schematic view of a portion I of the self-leveling concrete mortar filling machine shown in Figure 3; and Figure 6 is a schematic perspective view of the stirring mechanism of the self-leveling concrete mortar filling machine shown in Figure 3. Description of the reference numerals
  • the invention designs a novel filling machine (self-leveling concrete mortar filling machine), which is located between the double-shaft concrete mixer and the self-leveling concrete mortar layer, as shown in Fig. 2, which can prevent the flow process of the self-leveling concrete. Segregation to ensure the homogeneity of the concrete, the key is to reduce the gas content of the external concrete mortar stably, so that the CRTSIII type track plate meets the quality requirements.
  • 3 to 6 show a self-leveling concrete mortar filling machine for high-iron rail CRTS III track plate construction according to the present invention.
  • the filling machine comprises: a pot body 4 having a feed port 2 mounted on the top thereof and a discharge port 13 mounted on a side near the bottom; at least one stirring mechanism including a motor reducer 1, vertical a stirring shaft 5 disposed in the pot body, and a first set of propeller blades 7 and a second group of propeller blades 9 installed between the upper support 17 and the lower support 18 of the agitating shaft; and a defoaming paddle 6 located at Above the upper support, at least one cantilever 19 extending radially along the agitating shaft and a plurality of defoaming racks 20 radially aligned on the cantilever 19.
  • each set of propeller blades 7 acts as a mortar for upwards
  • the second group of propeller blades 9 acts to press the mortar downwards.
  • each set of paddles consists of two paddles with a helix angle of 180 ° between the start and end points of each paddle.
  • the upper support 17 and the lower support 18 each include a base body fixed to the agitating shaft and two struts fixed to the base body.
  • a plurality of mounting pieces 21 are welded to each of the struts, and the ends of the blades are fixed by bolts to the mounting pieces to realize a fixed connection of the blades. It should be noted that the mounting piece 21 shown in FIG. 6 is idle. , connected by other mounting pieces.
  • the upper support 17 and the lower support 18 each include a first rod extending in a first radial direction and a second rod extending in a second opposite direction, the first set of propeller blades 7 having two outer sheets
  • the upper ends of the two outer pulp sheets are respectively connected to the outer end portion of the first rod of the upper support and the outer end portion of the second rod of the upper support, and the lower ends of the two outer pulp sheets are respectively connected to the first end of the lower support
  • the outer end of the rod and the outer end of the second rod of the lower support, the second set of propeller blades 9 have two inner pulp sheets, and the upper ends of the two outer pulp sheets are respectively connected to the middle of the first rod of the upper support And the middle of the second rod of the upper support, the lower ends of the two outer pulp sheets are respectively connected to the middle of the first rod of the lower support and the middle of the second rod of the lower support.
  • the first set of propeller blades 7 described above may be replaced by blades that are lifted up to the mortar as the agitating mechanism rotates.
  • the second set of propeller blades 9 may be replaced by blades that press down the mortar as the agitating mechanism rotates.
  • stirring the mortar up and down the material can be effectively prevented from segregating during the mixing process.
  • two sets of stirring mechanisms are installed side by side in the pot body 4 of the filling machine, and the feeding port 2 is installed on the top cover plate 3 of the pot body 4, and is matched with a standard concrete mixer truck, and the concrete mortar is added into the filling machine.
  • the top view of the pot body 4 is a waist-shaped structure, and the bottom of the pot body 4 has a step to ensure smooth flow of the sand slurry from the high to the bottom, and finally discharged through the manual butterfly valve 12 and the discharge port 13.
  • the feed port 2 has a vibration motor, the feed port 2 is mounted on the cover plate 3, and the cover plate 3 is mounted on the pot body 4.
  • the agitating shaft 5 is supported on the top of the pot body 4.
  • the support structure includes a bearing housing 15 having a flanged edge and a bearing gland 16 fixedly coupled to the bearing housing 15.
  • the agitating shaft 5 is a stepped shaft passing through a bearing 14 seated in the bearing housing 15, the bearing 14 is pressed by the upper bearing end cap 16, and the bearing gland 16 is pressed by a shaft stopper 23 provided on the agitating shaft.
  • the bearing 14, the bearing housing 15, and the bearing gland 16 are located at an upper position in the agitating shaft 5.
  • the cover plate 3 is provided with a support 22, and the bearing seat 15 is seated in the cavity of the support 22 through the edge of the flange, and the support 22 is also used for supporting the motor reducer 1 at the same time, and
  • the motor reducer 1 is fixedly connected, and the upper end of the agitating shaft 5 extends into the motor reducer 1 to achieve vertical positioning of the agitating shaft 5.
  • the support structure of the above agitating shaft is reasonable and compact, and the stirring shaft 5 can be reliably operated.
  • a slightly longer portion of the lower portion of the agitating shaft 5 is mounted with a defoaming paddle 6 at a position, a blade paddle 10 positioned at a lower position, and a first group of propeller blades 7 between the defoaming slurry 6 and the blade paddle 10,
  • Two sets of propeller blades 9 and support rods 8 support the first set of propeller blades 7 and the second set of propeller blades 9, all of which are in the pot body 4 and below the cover plate 3.
  • the uppermost end portion of the agitating shaft 5 is located above the cover plate 3 for mounting the motor reducer 1, and the motor reducer 1 is the power source of the agitator.
  • each of the defoaming racks is preferably U-shaped and extends in a wave shape on the same cantilever.
  • Working mode The self-leveling concrete mortar first enters the feed port 2. Since the vibration motor is installed on the feed port 2, the self-leveling concrete mortar is firstly subjected to exhaust treatment, and then the flow enters the pot through the cover plate 3.
  • the first agitating mechanism rotates forward
  • the second group of agitating mechanism rotates forward or reverse
  • the first group of propeller blades 7 plays the upward loading
  • the second group of propellers 9 presses the material downwards, so that the flow is up and down
  • the cycle while stirring the mortar, disperses, breaks or rises the bubbles in the mortar, and eliminates the rising bubbles through the defoaming paddle 6.
  • the squeegee paddle 10 scrapes the mortar at the bottom of the pot to prevent accumulation of material at the bottom of the pot.
  • the agitator is mounted on the bottom frame 11 and can be fixedly placed or can be mounted on a conventional vehicle for towing and adapt to different construction requirements.
  • the prior art cannot meet the requirement of maintaining homogeneity and low gas content before self-leveling concrete mortar is poured, and the quality of the CRTS III type track plate is unqualified.
  • the utility model can prevent the separation of the self-leveling concrete flow process and ensure the uniformity of the concrete. Qualitative, it can also reduce the gas content of the external concrete mortar stably, so that the CRTSIII track plate can meet the quality requirements very well.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)

Abstract

一种自流平混凝土砂浆灌注机,包括:锅体(4),其顶部安装有进料口(2),靠近底部安装有出料口(13);至少一搅拌机构,包括驱动电机(1)、竖直地设置在锅体(4)中的搅拌轴(5)、以及在安装于搅拌轴(5)上的上支座(17)和下支座(18)之间安装的向上托砂浆的第一组桨片(7)和向下压砂浆的第二组桨片(9);以及消泡桨(6),其安装于搅拌轴(5)上,位于上支座(17)的上方,包括沿搅拌轴(5)径向延伸的至少一悬臂(19)和沿径向排列在悬臂(19)上的若干消泡齿杆(20)。

Description

自流平混凝土砂浆灌注机 技术领域 本发明涉及一种自流平混凝土砂浆灌注机, 能够降低自流平混凝土的含气量和防 止自流平混凝土的离析, 可以适用于高铁 CRTSIII轨道板施工。 背景技术 高铁 CRTSIII轨道板是 CRTS I和 CRTS II板式无渣轨道的替代方案。 采用的垫层 由水泥沥青砂浆改成了自流平混凝土砂浆(也称自密实混凝土),其施工成本大大减低。
CRTS I和 CRTS II板式无渣轨道是目前高速铁路的主要结构形式, 在施工时, 轨 道板和路基之间填充一层水泥沥青砂浆垫层, 起到填充、 找平、 承力和适当的缓冲功 能, 确保高速火车行使的舒适性和安全性以及轨道板使用的耐久性和可维护性。 但这 种水泥沥青砂浆垫层的施工工艺复杂、 成本高。 目前, 自流平混凝土砂浆是通过双卧轴混凝土搅拌机搅拌而成, 其含气量较高, 中间经过搅拌转运罐车进行运输, 到现场工地后直接进行轨道板灌注, 如图 1所示, 这种方式的自流平混凝土砂浆存在含气量较高和出现离析的现象。 CRTSIII型轨道板要求自流平混凝土砂浆含气量很低, 并防止有离析现象, 否则会 导致 CRTSIII型轨道板质量不合格的现象。 目前尚没有相关的设备配套来解决这些技 术问题。 发明内容 本发明的目的在于提供一种自流平混凝土砂浆灌注机, 能够降低自流平混凝土的 含气量和防止自流平混凝土的离析, 可以适用于高铁 CRTSIII轨道板施工。 为此, 本发明提供了一种自流平混凝土砂浆灌注机, 包括: 锅体, 其顶部安装有 进料口, 靠近底部安装有出料口; 至少一搅拌机构, 包括驱动电机、 竖直地设置在锅 体中的搅拌轴、 以及在安装于搅拌轴的上支座和下支座之间安装的向上托砂浆的第一 组桨片和向下压砂浆的第二组桨片; 以及消泡桨, 安装于搅拌轴上, 位于上支座的上 方, 包括沿搅拌轴径向延伸的至少一悬臂和沿径向排列在悬臂上的若干消泡齿杆。 进一步地,上述第一组桨片和第二组桨片中的各桨片均为螺旋桨片并且旋向相反, 其中, 第一组桨片的螺旋半径大于第二组桨片的螺旋半径。 进一步地, 上述搅拌轴支撑于锅体顶部。 进一步地, 上述搅拌轴的底部安装有与锅体的底壁相适配的刮板桨片。 进一步地, 上述搅拌机构还包括安装于所述搅拌轴上并支撑第一组桨片和第二组 桨片的中部的支撑杆。 进一步地, 上述至少一搅拌机构包括并列排列的第一搅拌机构和第二搅拌机构, 其中, 第二搅拌机构所对应的锅体底壁部分的位置低于第一搅拌机构所对应的锅体底 壁部分的位置, 进料口设置在靠近第一搅拌机构的一侧, 出料口设置在靠近第二搅拌 机构的一 进一步地, 上述自流平混凝土砂浆灌注机还包括支撑锅体的移动小车。 进一步地, 上述进料口上设有振动电机。 进一步地, 上述位于上支座上方的消泡桨的高度位置可调。 进一步地, 上述各齿杆呈 U型, 并且同一悬臂上的各齿杆呈波浪形一体成型。 进一步地, 上述各齿杆呈 U型, 并分布在经过悬臂且与水平面垂直的竖直平面内 或与水平面成一定角度的倾斜平面内。 进一步地, 上述倾斜平面的上方朝向搅拌轴的旋转方向前倾, 以减少浆料的飞溅 和进一步下压浆料。 进一步地, 上述上支座和下支座各自包括沿第一径向延伸的第一杆和沿相反的第 二径向延伸的第二杆, 第一组桨片有两个外浆片, 两个外浆片的上端分别连接在上支 座的第一杆的外端部和上支座的第二杆的外端部, 两个外浆片的下端分别连接在下支 座的第一杆的外端部和下支座的第二杆的外端部, 第二组桨片有两个内浆片, 两个外 浆片的上端分别连接在上支座的第一杆的中部和上支座的第二杆的中部, 两个外浆片 的下端分别连接在下支座的第一杆的中部和下支座的第二杆的中部。 进一步地, 上述上支座的第一杆和第二杆分别与下支座的第一杆和第二杆平行且 上下对应地布置。 本发明的自流平混凝土砂浆灌注机是自流平混凝土砂浆灌注前进行排气、 防离析 的专用设备, 其可确保自流平混凝土流动过程中的防止离析外, 能有效的把混凝土内 部的含气量控制在规定的范围内, 其结构简单, 性能可靠。 除了上面所描述的目的、 特征、 和优点之外, 本发明具有的其它目的、 特征、 和 优点, 将结合附图作进一步详细的说明。 附图说明 构成本说明书的一部分、 用于进一步理解本发明的附图示出了本发明的优选实施 例, 并与说明书一起用来说明本发明的原理。 图中: 图 1示出了现有技术的用于高铁 CRTSIII轨道板施工的自流平混凝土砂浆施工的 流程图; 图 2示出了根据本发明的用于高铁 CRTSIII轨道板施工的自流平混凝土砂浆施工 的流程图; 图 3是根据本发明的用于高铁 CRTSIII轨道板施工的自流平混凝土砂浆灌注机的 结构示意图; 图 4是图 3所示自流平混凝土砂浆灌注机在去除顶端盖板时的平面示意图; 图 5是图 3所示自流平混凝土砂浆灌注机的局部 I的放大示意图; 以及 图 6是图 3所示自流平混凝土砂浆灌注机的搅拌机构的立体结构示意图。 附图标记说明
1电机减速机 2进料口 3盖板 4锅体
5搅拌轴 6消泡桨
7第一组螺旋桨片 8支撑杆
9第二组螺旋桨片 10刮板桨片
11底架 12手动蝶阀 13出料口 14轴承
15轴承座 16轴承压盖
17上支座 18下支座
19悬臂 20消泡齿杆
21安装片 22支座
23轴挡件。 具体实施方式 以下结合附图对本发明的实施例进行详细说明, 但是本发明可以由权利要求限定 和覆盖的多种不同方式实施。 本发明设计了一种新型灌注机(自流平混凝土砂浆灌注机), 它位于双卧轴混凝土 搅拌机与自流平混凝土砂浆层之间, 如图 2所示, 其既能防止自流平混凝土流动过程 的离析,确保混凝土的匀质性, 关键是可将外来的混凝土砂浆含气量稳定的降低下来, 使 CRTSIII型轨道板达到质量要求。 图 3至图 6示出了根据本发明的用于高铁 CRTSIII轨道板施工的自流平混凝土砂 浆灌注机。 结合参照图 3至图 6, 该灌注机包括: 锅体 4, 其顶部安装有进料口 2, 靠 近底部的侧面安装有出料口 13 ; 至少一搅拌机构, 包括电机减速机 1、 竖直地设置在 锅体中的搅拌轴 5、 以及在搅拌轴的上支座 17和下支座 18之间安装的第一组螺旋桨 片 7和第二组螺旋桨片 9; 以及消泡桨 6, 位于上支座的上方, 沿搅拌轴径向延伸的至 少一悬臂 19和沿径向排列在悬臂 19上的若干消泡齿杆 20。 其中, 第一组螺旋桨片 7的旋向和第二组螺旋桨片 9的旋向相反, 第一组螺旋桨 片 7的螺旋半径大于第二组螺旋桨片 9的螺旋半径。 在旋转工作状态时, 第一组螺旋 桨片 7起到向上托砂浆的作用, 第二组螺旋桨片 9起到向下压砂浆的作用。 优选地, 每一组桨片由两个桨片组成, 各桨片的起点和终点之间的螺旋角为 180 ° 。 如图 6所示, 上支座 17和下支座 18均包括固定在搅拌轴上的座体和固定在座体 上的两个支杆构成。 每个支杆上焊接有多个安装片 21, 桨片的端部通过螺栓与安装片 固定, 实现各桨片的固定连接, 需要指出的是, 图 6中示出的安装片 21是闲置的, 由 其它的安装片起连接作用。 具体地, 上支座 17和下支座 18各自包括沿第一径向延伸的第一杆和沿相反的第 二径向延伸的第二杆, 第一组螺旋桨片 7有两个外浆片, 两个外浆片的上端分别连接 在上支座的第一杆的外端部和上支座的第二杆的外端部, 两个外浆片的下端分别连接 在下支座的第一杆的外端部和下支座的第二杆的外端部, 第二组螺旋桨片 9有两个内 浆片,两个外浆片的上端分别连接在上支座的第一杆的中部和上支座的第二杆的中部, 两个外浆片的下端分别连接在下支座的第一杆的中部和下支座的第二杆的中部。 当然, 上述第一组螺旋桨片 7可由在搅拌机构旋转时向上托砂浆的桨叶代替, 相 应地, 第二组螺旋桨片 9可由在搅拌机构旋转时向下压砂浆的桨叶代替。 通过向上托 砂浆和向下压砂浆的搅拌方式, 在搅拌过程中能够有效防止物料离析。 优选地, 灌注机的锅体 4内两组搅拌机构并排安装, 锅体 4顶端盖板 3上安装有 进料口 2, 和标准的混凝土搅拌车配套, 将混凝土砂浆加入灌注机内。 锅体 4俯视图为腰形结构,锅体 4底部有台阶,保证砂浆料流顺畅地从高往底流, 最后通过手动蝶阀 12、 出料口 13排出。 进料口 2上有振动电机, 进料口 2安装在盖 板 3上, 盖板 3安装在锅体 4上, 图例中有两个盖板 3, 盖板 3上有支座。 搅拌轴 5支撑于锅体 4顶部。 其支撑结构包括具有法兰边缘的轴承座 15、 与轴承 座 15固定连接的轴承压盖 16。搅拌轴 5为阶梯轴,穿过坐落于轴承座 15中的轴承 14, 通过上部的轴承端盖 16压紧轴承 14, 并且通过在搅拌轴上设置的轴挡件 23压紧轴承 压盖 16。 轴承 14、 轴承座 15、 轴承压盖 16位于搅拌轴 5中上部位置。 相应的, 盖板 3上设有支座 22,轴承座 15通过法兰边缘坐落于支座 22的凹腔中, 该支座 22还同时 用于支撑在上的支撑电机减速机 1, 并且与电机减速机 1固定连接, 搅拌轴 5的上端 伸入电机减速机 1中, 从而实现搅拌轴 5的竖直定位。 上述搅拌轴的支撑结构合理、 紧凑, 可保证搅拌轴 5可靠运行。 搅拌轴 5下部稍长部分安装有位置在上的消泡桨 6、 位置在下的刮板桨片 10, 以 及在消泡浆 6和刮板桨片 10之间的第一组螺旋桨片 7、第二组螺旋桨片 9和支撑杆 8, 支撑杆 8对第一组螺旋桨片 7、 第二组螺旋桨片 9起支撑作用, 所有桨片均在锅体 4 内, 盖板 3之下。 搅拌轴 5最上端部分位于盖板 3之上, 用来安装电机减速机 1, 电机减速机 1是 搅拌机的动力源。 另一组搅拌机构结构类似, 不同在于搅拌轴 5长度不一样。 在上支 座 17上方的消泡桨 6的高度可任意调整,确保设备在施工时, 原材料需覆盖到消泡桨 6以上。 在图 6所示的搅拌机构中, 各消泡齿杆优选呈 U形, 并且在同一悬臂上呈波 浪形延伸。 工作运行方式: 自流平混凝土砂浆先进入进料口 2, 由于进料口 2上安装有振动 电机, 先会对自流平混凝土砂浆进行初步的排气处理, 之后料流通过盖板 3进入锅体 4中, 此时第一搅拌机构正转, 第二组搅拌机构正转或反转, 第一组螺旋桨片 7起向 上托料、 第二组螺旋桨 9向下压料的作用, 使料流上下循环, 在搅拌砂浆的同时, 将 砂浆内的气泡分散、打破或上扬, 通过消泡桨 6将上扬的气泡消除。刮板桨片 10将锅 体底部的砂浆刮起来, 可防止锅体底部积料。 搅拌器安装在底架 11上面, 可固定放置, 也可整体安装在常规的车辆上面拖行, 适应不同的施工要求。 现有技术不能达到自流平混凝土砂浆灌注前保持匀质性、 含气量低的要求, 会造 成 CRTSIII型轨道板质量不合格, 本实用新型既能防止自流平混凝土流动过程的离析, 确保混凝土的匀质性, 也可将外来的混凝土砂浆含气量稳定的降低下来, 使 CRTSIII 型轨道板很好的达到质量要求。 以上所述仅为本发明的优选实施例而已, 并不用于限制本发明, 对于本领域的技 术人员来说, 本发明可以有各种更改和变化。 凡在本发明的精神和原则之内, 所作的 任何修改、 等同替换、 改进等, 均应包含在本发明的保护范围之内。

Claims

1. 一种自流平混凝土砂浆灌注机, 其特征在于, 包括:
锅体 (4), 其顶部安装有进料口 (2), 靠近底部安装有出料口 (13 ); 至少一搅拌机构, 包括驱动电机 (1 )、 竖直地设置在所述锅体中的搅拌轴 ( 5 )、 以及在安装于所述搅拌轴 (5 )上的上支座 (17)和下支座 (18)之间安 装的向上托砂浆的第一组桨片 (7) 和向下压砂浆的第二组桨片 (9); 以及 消泡桨 (6), 安装于所述搅拌轴 (5 ) 上, 位于所述上支座 (17) 的上方, 包括沿所述搅拌轴(5 )径向延伸的至少一悬臂(19)和沿径向排列在所述悬臂 上的若干消泡齿杆 (20)。
2. 根据权利要求 1所述的自流平混凝土砂浆灌注机, 其特征在于, 所述第一组桨 片 (7) 和第二组桨片 (9) 中的各桨片均为螺旋桨片并且旋向相反, 其中, 所 述第一组桨片 (7) 的螺旋半径大于第二组桨片 (9) 的螺旋半径。
3. 根据权利要求 1所述的自流平混凝土砂浆灌注机,其特征在于,所述搅拌轴(5 ) 支撑于所述锅体 (4) 的顶部。
4. 根据权利要求 1所述的自流平混凝土砂浆灌注机,其特征在于,所述搅拌轴(5 ) 的底部安装有与所述锅体 (4) 的底壁相适配的刮板桨片 (10)。
5. 根据权利要求 1所述的自流平混凝土砂浆灌注机, 其特征在于, 所述搅拌机构 还包括安装于所述搅拌轴(5 )上并支撑所述第一组桨片(7)和第二组桨片(9) 的中部支撑杆 (8)。
6. 根据权利要求 1所述的自流平混凝土砂浆灌注机, 其特征在于, 至少一搅拌机 构包括并列排列的第一搅拌机构和第二搅拌机构, 其中, 第二搅拌机构所对应 的锅体底壁部分的位置低于所述第一搅拌机构所对应的锅体底壁部分的位置, 所述进料口设置在靠近所述第一搅拌机构的一侧, 所述出料口设置在靠近所述 第二搅拌机构的一侧。
7. 根据权利要求 1至 6中任一项所述的自流平混凝土砂浆灌注机, 其特征在于, 所述进料口 (2) 上设有振动电机。
8. 根据权利要求 1所述的自流平混凝土砂浆灌注机, 其特征在于, 各所述齿杆呈 U型, 并且同一悬臂上的各所述齿杆呈波浪形一体成型。
9. 根据权利要求 1所述的自流平混凝土砂浆灌注机, 其特征在于, 各所述齿杆呈 U型, 并分布在经过所述悬臂且与水平面垂直的竖直平面内或与水平面成一定 角度的倾斜平面内。
10. 根据权利要求 9所述的自流平混凝土砂浆灌注机, 其特征在于, 所述倾斜平面 的上方朝向所述搅拌轴的旋转方向前倾。
11. 根据权利要求 1所述的自流平混凝土砂浆灌注机, 其特征在于, 所述上支座和 下支座各自包括沿第一径向延伸的第一杆和沿相反的第二径向延伸的第二杆, 所述第一组桨片(7)有两个外浆片, 所述两个外浆片的上端分别连接在所述上 支座的第一杆的外端部和所述上支座的第二杆的外端部, 所述两个外浆片的下 端分别连接在所述下支座的第一杆的外端部和所述下支座的第二杆的外端部, 所述第二组桨片(9)有两个内浆片, 所述两个外浆片的上端分别连接在所述上 支座的第一杆的中部和所述上支座的第二杆的中部, 所述两个外浆片的下端分 别连接在所述下支座的第一杆的中部和所述下支座的第二杆的中部。
12. 根据权利要求 11所述的自流平混凝土砂浆灌注机,其特征在于,所述上支座的第一杆 和第二杆分别与所述下支座的第一杆和第二杆平行且下下对应地布置。
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