WO2018224029A1 - 一种盾构螺旋输送机及盾构机 - Google Patents

一种盾构螺旋输送机及盾构机 Download PDF

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Publication number
WO2018224029A1
WO2018224029A1 PCT/CN2018/090369 CN2018090369W WO2018224029A1 WO 2018224029 A1 WO2018224029 A1 WO 2018224029A1 CN 2018090369 W CN2018090369 W CN 2018090369W WO 2018224029 A1 WO2018224029 A1 WO 2018224029A1
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Prior art keywords
shield
rotating cylinder
screw conveyor
transmission bearing
cylinder
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PCT/CN2018/090369
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English (en)
French (fr)
Inventor
刘飞
程永亮
彭正阳
廖倩
刘学
万佩
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中国铁建重工集团有限公司
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Publication of WO2018224029A1 publication Critical patent/WO2018224029A1/zh

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    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/12—Devices for removing or hauling away excavated material or spoil; Working or loading platforms
    • E21D9/124—Helical conveying means therefor

Definitions

  • the invention relates to the field of shield machines, in particular to a shield screw conveyor and a shield machine.
  • the shield screw conveyor is a key component of the shield machine to realize the bauxite transport and earth pressure balance function.
  • the driving sealing method of the existing shield screw conveyor mainly adopts the combination of the copper sleeve and the rubber seal, and the copper sleeve seal transmission has poor stability and poor regulation performance, and in the case where the initial well design width is strict, the axial direction thereof The space is occupied too much, which leads to the long length of the screw conveyor, which is not conducive to the arrangement and lifting of the screw conveyor.
  • the rubber seal With the rubber seal, the rubber is easily broken by the high pressure of the soil, and is easily rotated by the rotating cylinder. Good sealing performance cannot be guaranteed.
  • the technical problem to be solved by the present invention is to overcome the deficiencies of the prior art, and to provide a shield screw conveyor and a shield machine with good running stability, high reliability and small space occupation.
  • the technical solution proposed by the present invention is:
  • a shield screw conveyor includes a rotating cylinder for discharging cut alumina and a cylinder driving assembly for driving rotation of the rotating cylinder, the cylinder driving assembly including a transmission bearing, an output gear, and a rotating output gear
  • the driving member is sleeved on the rotating cylinder, and an outer ring of the transmission bearing is fixedly connected with the rotating cylinder, and the output gear is meshed with the outer ring of the transmission bearing.
  • the rotary box body is disposed in the sealed box body, and a rotating gap between the rotating cylinder body and the sealed box body for ensuring relative rotation of the rotating cylinder body is provided, and the sealing box body is provided There is a sealing fitting portion arranged axially along the rotating cylinder, and a sealing assembly is disposed between the sealing fitting portion and the rotating cylinder.
  • the sealing assembly includes a polyurethane sealing ring and a fixing flange, and the polyurethane sealing ring is mounted on the sealing fitting portion by a fixing flange, and one end of the polyurethane sealing ring is in close contact with the rotating cylinder body.
  • the polyurethane sealing ring is a plurality of, and the plurality of the polyurethane sealing rings are arranged along the axial direction of the rotating cylinder.
  • the plurality of fixing flanges are disposed between adjacent ones of the polyurethane sealing rings.
  • the driving member is mounted on the sealed box body, the transmission bearing and the output gear are disposed in the sealed box body, and an inner ring of the transmission bearing is fixedly mounted on the sealed box body.
  • the sealed box body comprises a sealed box body and a box cover, and the sealed box body and the box cover are detachably connected by a fastener.
  • the rotating cylinder is provided with a connecting portion connected to the outer ring of the transmission bearing.
  • the outer ring of the transmission bearing is connected to the connecting portion by a fastener.
  • a shield machine includes a shield body and the shield screw conveyor described above, and the shield screw conveyor is disposed in the shield body.
  • the cylinder driving assembly of the invention adopts the manner that the output gear cooperates with the transmission bearing to realize the driving of the rotating cylinder body, that is, when the screw conveyor works, the output gear directly drives the rotating cylinder body to rotate through the outer ring of the transmission bearing, and the rotating cylinder body thereof
  • the operation is smooth and the reliability is high; and the output gear and the transmission bearing are sleeved on the rotating cylinder body, and the cylinder drive assembly occupies a small space, thereby avoiding the use of the copper sleeve structure, causing the screw conveyor to be too long and not conducive to the screw conveyor arrangement. And the problem of lifting.
  • the shield machine of the present invention also has the above advantages.
  • the invention further provides a sealing fitting portion on the sealed box body, and a sealing assembly is arranged between the sealing fitting portion and the rotating cylinder body, so that when the rotating cylinder body rotates, the bauxite in the cylinder body is prevented from entering the inside of the cylinder driving assembly, thereby avoiding
  • the pollution of the transmission bearing and the output gear ensures the operating environment of the bearing, and the service life of the cylinder drive assembly is high.
  • the sealing assembly includes a polyurethane sealing ring, which avoids the problem that the sealing ring is broken by high earth pressure and has good sealing performance.
  • Figure 1 is a schematic view of the structure of the present invention.
  • Fig. 2 is an enlarged schematic view showing a portion A of Fig. 1.
  • Screw conveyor 11, rotating cylinder; 111, connecting portion; 12, screw shaft; 13, slag outlet; 2, cylinder drive assembly; 21, transmission bearing; 22, output gear; 3, sealed box; 31, sealing and fitting part; 32, sealed box body; 33, box cover; 4, rotating gap; 5, sealing assembly; 51, polyurethane sealing ring; 52, fixed flange;
  • the shield screw conveyor 1 includes a rotating cylinder 11, a screw shaft 12 disposed in the rotating cylinder 11, and a rotating cylinder 11 At the end of the slag opening 13, the rotating cylinder 11 rotates to drive the screw shaft 12 to transport the alumina 6 to the slag opening 13 and discharge the alumina 6 from the slag opening 13.
  • the shield screw conveyor 1 includes a rotating cylinder 11 and a cylinder driving assembly 2, and the rotating cylinder 11 is used for discharging the cutting clay 6, and the cylinder driving assembly 2 is used for driving the rotating cylinder 11 to rotate.
  • the cylinder drive assembly 2 includes a transmission bearing 21, an output gear 22, and a driving member 23 that drives the output gear 22 to rotate.
  • the transmission bearing 21 is sleeved on the rotating cylinder 11, and the outer ring of the transmission bearing 21 is fixedly connected with the rotating cylinder 11.
  • the output gear 22 meshes with the outer ring of the transmission bearing 21.
  • the cylinder drive assembly 2 of the present invention realizes the driving of the rotating cylinder 11 by means of the output gear 22 cooperating with the transmission bearing 21, that is, when the shield screw conveyor 1 is in operation, the output gear 22 directly drives the outer ring of the transmission bearing 21 to rotate.
  • the rotation of the cylinder 11 causes the bauxite 6 in the shield screw conveyor 1 to be transported backward, and the rotating cylinder 11 has good running stability and high reliability; and the output gear 22 and the transmission bearing 21 are sleeved on the rotating cylinder 11
  • the cylinder drive assembly 2 occupies a small space, which avoids the problem that the use of the copper sleeve structure causes the screw conveyor to be too long and is not conducive to the arrangement and lifting of the screw conveyor.
  • the rotating cylinder 11 is provided with a connecting portion 111.
  • the rotating cylinder 11 is connected to the outer ring of the transmission bearing 21 through the connecting portion 111, and the driving structure thereof is simple; in this embodiment, the outer ring of the transmission bearing 21 is fastened.
  • the member is connected to the connecting portion 111.
  • the shield screw conveyor 1 further includes a sealed casing 3, the rotating cylinder 11 is disposed in the sealed casing 3, and a rotating gap 4 is provided between the rotating cylinder 11 and the sealed casing 3, and the rotating gap 4 is provided.
  • the sealing cylinder 3 is arranged to rotate relative to the sealing box 3, and the sealing box 3 is provided with a sealing fitting portion 31.
  • the sealing fitting portion 31 is arranged along the axial direction of the rotating cylinder 11, and the sealing fitting portion 31 and the rotating cylinder 11 are
  • the sealing assembly 5 is disposed between the sealing member 3 and the sealing assembly 5 to effectively prevent the alumina 6 at the rotating gap 4 from entering the cylinder driving assembly 2, thereby avoiding contamination of the transmission bearing 21 and the output gear 22.
  • the operating environment of the transmission bearing 21 is ensured, and the cylinder drive assembly 2 has a high service life.
  • the sealing assembly 5 includes a polyurethane sealing ring 51 and a fixing flange 52.
  • the use of the polyurethane sealing ring 51 avoids the problem that the sealing ring is broken by high earth pressure, and the sealing performance is good; meanwhile, the polyurethane sealing ring 51 passes
  • the fixing flange 52 is mounted on the sealing fitting portion 31.
  • One end of the polyurethane sealing ring 51 is in close contact with the rotating cylinder 11 so that the alumina 6 at the rotating gap 4 does not enter the inside of the cylinder driving assembly 2, and the structure thereof is simple. Good sealing performance.
  • a plurality of polyurethane sealing rings 51 are arranged, and a plurality of polyurethane sealing rings 51 are arranged along the axial direction of the rotating cylinder 11, and a plurality of polyurethane sealing rings 51 are provided to improve the sealing performance, and the polyurethane sealing near the rotating gap 4 When the ring 51 wears out, the remaining polyurethane sealing ring 51 can continue to ensure the sealing, and the sealing reliability is high.
  • the fixing flange is a plurality of fixing flanges disposed between the adjacent polyurethane sealing rings, which further ensures the effective installation and sealing of the polyurethane sealing ring.
  • the driving member 23 is a driving motor
  • the driving member 23 is mounted on the sealing box 3
  • the transmission bearing 21 and the output gear 22 are disposed in the sealing box 3, so that the transmission bearing 21 and the output gear 22 are located in a sealed environment.
  • the driving reliability and safety of the cylinder driving assembly 2 are ensured.
  • the inner ring of the transmission bearing 21 is fixedly mounted on the sealing box 3 by fasteners, and the structure is simple.
  • the sealed box body 3 includes a sealed box body 32 and a box cover 33.
  • the sealed box body 32 and the box cover 33 are detachably connected by fasteners, and the sealed box body 32 and the box cover 33 are separately designed and conveniently assembled. Installation and removal of the body drive assembly 2.
  • the shield machine includes a shield body and the shield screw conveyor described in the above embodiment, and the shield screw conveyor is disposed in the shield body.
  • the shield machine of the invention also has the advantages that the above-mentioned shield screw conveyor has good running stability, high reliability, and small occupied space.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Screw Conveyors (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • General Details Of Gearings (AREA)
  • Sealing Of Bearings (AREA)

Abstract

一种盾构螺旋输送机（1），该盾构螺旋输送机包括排送切削碴土（6）的旋转筒体（11）及用于驱动旋转筒体旋转的筒体驱动组件（2），所述筒体驱动组件包括传动轴承（21）、输出齿轮（22）及带动输出齿轮转动的驱动件（23），所述传动轴承套设于所述旋转筒体上，且所述传动轴承的外圈与所述旋转筒体固定连接，所述输出齿轮与所述传动轴承的外圈啮合传动；还涉及一种盾构机，其包括盾体及上述的盾构螺旋输送机，所述盾构螺旋输送机设于所述盾体内。本螺旋输送机具有运行平稳性好、可靠性高，且占用空间小等优点。

Description

一种盾构螺旋输送机及盾构机
本申请要求于2017年6月9日提交中国专利局的申请号为201710433685.2、发明名称为“一种盾构螺旋输送机及盾构机”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中。
技术领域
本发明涉及盾构机领域，尤其涉及一种盾构螺旋输送机及盾构机。
背景技术
盾构螺旋输送机为盾构机实现碴土输送及土压平衡功能的关键零部件。现有的盾构螺旋输送机的驱动密封方式主要采用铜套与橡胶密封结合的方式，采用铜套密封传动平稳性及调节性能差，且在始发井设计宽度严格的情况下，其轴向空间占用大，从而导致螺旋输送机长度过长，不利于螺旋输送机的布置及吊运；而采用橡胶密封，橡胶容易被土体的高压力击穿，且容易被旋转筒体带动一起旋转，无法保证良好的密封性能。
发明内容
本发明要解决的技术问题是克服现有技术的不足，提供一种运行平稳性好、可靠性高，且占用空间小的盾构螺旋输送机及盾构机。
为解决上述技术问题，本发明提出的技术方案为：
一种盾构螺旋输送机，包括排送切削碴土的旋转筒体及用于驱动旋转筒体旋转的筒体驱动组件，所述筒体驱动组件包括传动轴承、输出齿轮及带动输出齿轮转动的驱动件，所述传动轴承套设于所述旋转筒体上，且所述传动轴承的外圈与所述旋转筒体固定连接，所述输出齿轮与所述传动轴承的外圈啮合传动。
作为上述技术方案的进一步改进：
还包括密封箱体，所述旋转筒体设于所述密封箱体内，所述旋转筒体与密封箱体之间设有保证旋转筒体可相对转动的转动间隙，所述密封箱体上设有沿旋转筒体轴向布置的密封配合部，所述密封配合部与旋转筒体之 间设有密封组件。
所述密封组件包括聚氨酯密封圈及固定法兰，所述聚氨酯密封圈通过固定法兰安装于所述密封配合部上，所述聚氨酯密封圈的一端与旋转筒体紧密接触。
所述聚氨酯密封圈为多个，多个所述聚氨酯密封圈沿旋转筒体的轴向布置。
所述固定法兰为多个，多个所述固定法兰设于相邻所述聚氨酯密封圈之间。
所述驱动件安装于所述密封箱体上，所述传动轴承、输出齿轮设于所述密封箱体内，所述传动轴承的内圈固定安装于所述密封箱体上。
所述密封箱体包括密封箱本体及箱盖，所述密封箱本体及箱盖通过紧固件可拆卸的连接。
所述旋转筒体上设有与传动轴承外圈连接的连接部。
所述传动轴承外圈通过紧固件与连接部连接。
一种盾构机，包括盾体及上述所述的盾构螺旋输送机，所述盾构螺旋输送机设于所述盾体内。
与现有技术相比，本发明的优点在于：
本发明的筒体驱动组件采用输出齿轮与传动轴承配合的方式实现旋转筒体的驱动，即在螺旋输送机工作时，输出齿轮通过传动轴承外圈直接带动旋转筒体旋转，其旋转筒体的运行平稳性好，可靠性高；且输出齿轮与传动轴承套设于旋转筒体上，筒体驱动组件占用空间小，避免了采用铜套结构导致螺旋输送机过长而不利于螺旋输送机布置及吊运的问题。本发明的盾构机同样具有上述优点。
本发明进一步在密封箱体上设置密封配合部，密封配合部与旋转筒体之间设有密封组件，使得旋转筒体旋转时，保证筒体内的碴土不进入筒体驱动组件的内部，避免了传动轴承及输出齿轮的污染，保证了轴承的运行环境，筒体驱动组件使用寿命高。密封组件包括聚氨酯密封圈，其避免了密封圈被高土体压力击穿的问题，密封性能好。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本发明的结构示意图。
图2是图1的A部的放大示意图。
图中各标号表示：
1、螺旋输送机；11、旋转筒体；111、连接部；12、螺旋轴；13、出渣口；2、筒体驱动组件；21、传动轴承；22、输出齿轮；23、驱动件；3、密封箱体；31、密封配合部；32、密封箱本体；33、箱盖；4、转动间隙；5、密封组件；51、聚氨酯密封圈；52、固定法兰；6、碴土。
具体实施方式
为了使本技术领域的人员更好地理解本发明方案，下面结合附图和具体实施方式对本发明作进一步的详细说明。
图1和图2所出了本发明盾构螺旋输送机的实施例，盾构螺旋输送机1包括旋转筒体11、设于旋转筒体11内的螺旋轴12及设于旋转筒体11后端的出渣口13，旋转筒体11旋转带动螺旋轴12向后输送碴土6至出渣口13，并使碴土6从出渣口13排出。本实施例中，盾构螺旋输送机1包括旋转筒体11及筒体驱动组件2，旋转筒体11用于排送切削碴土6，筒体驱动组件2用于驱动旋转筒体11旋转，筒体驱动组件2包括传动轴承21、输出齿轮22及带动输出齿轮22转动的驱动件23，传动轴承21套设于旋转筒体11上，且传动轴承21的外圈与旋转筒体11固定连接，输出齿轮22与传动轴承21的外圈啮合传动。本发明的筒体驱动组件2采用输出齿轮22与传动轴承21配合的方式实现旋转筒体11的驱动，即在盾构螺旋输送机1工作时，输出齿轮22通过传动轴承21外圈直接带动旋转筒体11旋转使得盾构螺旋输送机1内的碴土6向后输送，其旋转筒体11的运行平稳性 好，可靠性高；且输出齿轮22与传动轴承21套设于旋转筒体11上，筒体驱动组件2占用空间小，避免了采用铜套结构导致螺旋输送机过长而不利于螺旋输送机布置及吊运的问题。
本实施例中，旋转筒体11上设有连接部111，旋转筒体11通过连接部111与传动轴承21外圈连接，其驱动结构简单；本实施例中，传动轴承21外圈通过紧固件与连接部111连接。
本实施例中，盾构螺旋输送机1还包括密封箱体3，旋转筒体11设于密封箱体3内，旋转筒体11与密封箱体3之间设有转动间隙4，转动间隙4用于保证旋转筒体11可相对密封箱体3转动，密封箱体3上设有密封配合部31，密封配合部31沿旋转筒体11轴向布置，密封配合部31与旋转筒体11之间设有密封组件5，采用密封配合部31与密封组件5结合的方式有效防止了转动间隙4处的碴土6进入筒体驱动组件2内，避免了传动轴承21及输出齿轮22的污染，保证了传动轴承21的运行环境，筒体驱动组件2使用寿命高。
本实施例中，密封组件5包括聚氨酯密封圈51及固定法兰52，采用聚氨酯密封圈51避免了密封圈被高土体压力击穿的问题，其密封性能好；同时，聚氨酯密封圈51通过固定法兰52安装于密封配合部31上，聚氨酯密封圈51的一端与旋转筒体11紧密接触，使得转动间隙4处的碴土6不会进入筒体驱动组件2的内部，其结构简单、密封性能好。
本实施例中，聚氨酯密封圈51为多个，多个聚氨酯密封圈51沿旋转筒体11的轴向布置，设置多个聚氨酯密封圈51提高了密封性能，在靠近转动间隙4处的聚氨酯密封圈51磨损失效时，其余聚氨酯密封圈51仍可继续保证密封，密封可靠性高。本实施例中，固定法兰为多个，多个固定法兰设于相邻得聚氨酯密封圈之间，其进一步保证了聚氨酯密封圈的有效安装及密封。
本实施例中，驱动件23为驱动电机，驱动件23安装于密封箱体3上，传动轴承21、输出齿轮22设于密封箱体3内，使得传动轴承21及输出齿轮22位于密封环境中，保证了筒体驱动组件2的驱动可靠性及安全性，同时，传动轴承21的内圈通过紧固件固定安装于密封箱体3上，其结构简单。本实施例中，密封箱体3包括密封箱本体32及箱盖33，密封箱本体32及 箱盖33通过紧固件可拆卸的连接，密封箱本体32及箱盖33的分体设计方便筒体驱动组件2的安装及拆卸。
本实施例中，盾构机包括盾体及上述实施例所述的盾构螺旋输送机，盾构螺旋输送机设于所述盾体内。本发明盾构机同样具有上述盾构螺旋输送机运行平稳性好、可靠性高，且占用空间小等优点。
以上仅是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本发明的保护范围。

Claims (10)

  1. 一种盾构螺旋输送机，包括排送切削碴土的旋转筒体及用于驱动旋转筒体旋转的筒体驱动组件，其特征在于，所述筒体驱动组件包括传动轴承、输出齿轮及带动输出齿轮转动的驱动件，所述传动轴承套设于所述旋转筒体上，且所述传动轴承的外圈与所述旋转筒体固定连接，所述输出齿轮与所述传动轴承的外圈啮合传动。
  2. 根据权利要求1所述的盾构螺旋输送机，其特征在于，还包括密封箱体，所述旋转筒体设于所述密封箱体内，所述旋转筒体与密封箱体之间设有保证旋转筒体可相对转动的转动间隙，所述密封箱体上设有沿旋转筒体轴向布置的密封配合部，所述密封配合部与旋转筒体之间设有密封组件。
  3. 根据权利要求2所述的盾构螺旋输送机，其特征在于，所述密封组件包括聚氨酯密封圈及固定法兰，所述聚氨酯密封圈通过固定法兰安装于所述密封配合部上，所述聚氨酯密封圈的一端与旋转筒体紧密接触。
  4. 根据权利要求3所述的盾构螺旋输送机，其特征在于，所述聚氨酯密封圈为多个，多个所述聚氨酯密封圈沿旋转筒体的轴向布置。
  5. 根据权利要求4所述的盾构螺旋输送机，其特征在于，所述固定法兰为多个，多个所述固定法兰设于相邻所述聚氨酯密封圈之间。
  6. 根据权利要求2至5任意一项所述的盾构螺旋输送机，其特征在于，所述驱动件安装于所述密封箱体上，所述传动轴承、输出齿轮设于所述密封箱体内，所述传动轴承的内圈固定安装于所述密封箱体上。
  7. 根据权利要求6所述的盾构螺旋输送机，其特征在于，所述密封箱体包括密封箱本体及箱盖，所述密封箱本体及箱盖通过紧固件可拆卸的连接。
  8. 根据权利要求1至5任意一项所述的盾构螺旋输送机，其特征在于，所述旋转筒体上设有与传动轴承外圈连接的连接部。
  9. 根据权利要求8所述的盾构螺旋输送机，其特征在于，所述传动轴承外圈通过紧固件与连接部连接。
  10. 一种盾构机，包括盾体，其特征在于，还包括如权利要求1至9任意一项所述的盾构螺旋输送机，所述盾构螺旋输送机设于所述盾体内。
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