WO2024016707A1 - 一种箱梁预应力管道橡胶棒抽拔装置 - Google Patents

一种箱梁预应力管道橡胶棒抽拔装置 Download PDF

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Publication number
WO2024016707A1
WO2024016707A1 PCT/CN2023/083720 CN2023083720W WO2024016707A1 WO 2024016707 A1 WO2024016707 A1 WO 2024016707A1 CN 2023083720 W CN2023083720 W CN 2023083720W WO 2024016707 A1 WO2024016707 A1 WO 2024016707A1
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WO
WIPO (PCT)
Prior art keywords
rod
rubber
pulling
rubber rod
wheels
Prior art date
Application number
PCT/CN2023/083720
Other languages
English (en)
French (fr)
Inventor
刘同斌
周亮
张震江
殷爱国
孙猛
李金科
陈向阳
李东原
张帆
邓朝辉
何云飞
王军鹏
张亚磊
齐亚北
朱传华
常志昊
张浩杰
陶义龙
杨宏宇
武宽
Original Assignee
中铁七局集团有限公司
中铁七局集团郑州工程有限公司
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Publication date
Application filed by 中铁七局集团有限公司, 中铁七局集团郑州工程有限公司 filed Critical 中铁七局集团有限公司
Publication of WO2024016707A1 publication Critical patent/WO2024016707A1/zh

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B23/00Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
    • B28B23/02Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
    • B28B23/04Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members the elements being stressed
    • B28B23/043Wire anchoring or tensioning means for the reinforcements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B17/00Details of, or accessories for, apparatus for shaping the material; Auxiliary measures taken in connection with such shaping
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/62Plastics recycling; Rubber recycling

Definitions

  • the invention relates to the technical field of mechanical equipment, and in particular to a rubber rod extraction device for box girder prestressed pipes.
  • Post-tensioned prestressed steel strands are a top priority in bridges, and reserved pipes must be embedded before concrete is poured into the beam body.
  • metal corrugated pipes were used to provide tension channel mandrels for post-tensioning construction.
  • due to the heavy pressure of the beam concrete they are easily deformed due to low stiffness, easily damaged due to thin pipe walls, and have poor sealing performance due to many joints. The risks are high and the cost of one-time use inputs is high.
  • a prefabricated box beam prestressed pipe core mold rubber pull-out rod was developed.
  • the hole wall is smooth; the size is accurate, the hole forming accuracy is high; the service life is long and it can be used repeatedly.
  • the application number is 201420342592.0 and the patent name is the invention patent of the rubber extraction rod threading machine. It discloses that one side of the body is provided with a conduit, and the other side of the body is provided with transverse rollers and vertical rollers respectively. The upper part of the body There are respectively a No. 1 up and down adjustment screw and a No. 2 up and down adjustment screw. The No. 1 up and down adjustment screw is movably connected to the No. 1 round roller below. There is a No. 1 toothed roller below the No. 1 round roller. The No. 2 up and down adjustment screw is provided. There are No. 2 round rollers and No.
  • the purpose of the present invention is to provide a rubber rod extraction device for box girder prestressed pipes to solve the problems existing in the above-mentioned prior art. It not only avoids the use of metal bellows that are easy to be damaged, easy to block, and have a higher porosity than rubber rods. When the rubber rod is pulled out by the rod pulling wheel assembly, the frictional resistance of the rubber rod can be balanced to ensure the stability of the entire device. , ensuring the safety effect during use.
  • the present invention provides a device for extracting rubber rods from box girder prestressed pipes, which includes a movable workbench and several groups of pulling rods for extracting rubber rods from prestressed pipes. Wheel sets, each of the rod-drawing wheel sets is arranged on the movable workbench, and is aligned perpendicular to the The directions for pulling out the rubber rods are spaced apart and correspond to the rubber rods to be pulled out respectively. There are top picks between two adjacent groups of the rod pulling wheels to balance the friction resistance of the rubber rods.
  • the telescopic rod of the top pick extends out of the movable workbench and abuts against the outer part of the prestressed pipe.
  • Each of the rod pulling wheel sets is provided with two rows arranged in parallel and arranged along the direction of pulling out the rubber rods.
  • the rod-drawing wheel is equipped with a rod-drawing wheel motor that drives the rod-drawing wheel to rotate.
  • the rotation axis of the rod-drawing wheel is perpendicular to the extension axis of the rubber rod, and in the same rod-drawing wheel group
  • the outer peripheral edges of the two rows of rod pulling wheels are respectively pressed against both sides of the rubber rods.
  • Each rod pulling wheel set is set on a movable workbench, and is spaced apart along the direction perpendicular to the rubber rod pulling, and corresponds to each rubber rod to be pulled out. There is a rod pulling wheel set between two adjacent groups.
  • the top pick balances the frictional resistance of the rubber rod.
  • the telescopic rod of the top pick extends out of the movable workbench and abuts the outer part of the prestressed pipe.
  • Each puller wheel set is equipped with two parallel rows and is drawn along the rubber rod.
  • the rod-drawing wheels are arranged in the pulling direction.
  • the rod-drawing wheels are equipped with a rod-drawing wheel motor that drives their rotation.
  • the rotation axis of the rod-drawing wheels is perpendicular to the extension axis of the rubber rod, and there are two rows of rod-drawing wheels in the same rod-drawing wheel group.
  • the outer peripheral edges of the rubber rods are pressed against both sides of the rubber rods.
  • the contact effect of the telescopic rod of the top pick is used to balance the frictional resistance of the rubber rod and avoid , the fulcrum of the force on the entire movable platform is at its bottom, which causes the entire moment to be too large and easily leads to the risk of overturning of the movable platform. Therefore, the support function of the top pick ensures the stability and safety of the entire movable platform during use. sex.
  • Figure 1 is a front view of the overall structure of the present invention
  • Figure 2 is a top view of the overall structure of the present invention.
  • Figure 3 is a side view of the overall structure of the present invention.
  • 1-traveling body 2-scissor lift bracket, 3-rod pulling wheel, 4-top pick, 5-movable workbench, 6-operating table, 7-seat, 8-rubber rod, 9 -Lifting cylinder, 10-protective fence.
  • the purpose of the present invention is to provide a rubber rod extraction device for box girder prestressed pipes to solve the problems existing in the above-mentioned prior art. It not only avoids the use of metal bellows that are easy to be damaged, easy to block, and have a higher porosity than rubber rods. When the rubber rod is pulled out by the rod pulling wheel assembly, the frictional resistance of the rubber rod can be balanced to ensure the stability of the entire device. , ensuring the safety effect during use.
  • this embodiment provides a device for extracting rubber rods from box girder prestressed pipes, including a movable workbench 5 and several groups of pulling rods for pulling out rubber rods 8 from the prestressed pipes.
  • Wheel sets each rod pulling wheel set is set on the movable workbench 5, and is spaced apart along the direction perpendicular to the pulling direction of the rubber rod 8, and corresponds to each rubber rod 8 to be pulled out, and two adjacent groups of pulling rods
  • a top pick 4 is provided between the wheel sets to balance the frictional resistance of the rubber rod 8.
  • the telescopic rod of the top pick 4 extends out of the movable workbench 5 and abuts the outer part of the prestressed pipe.
  • Each rod puller wheel set is provided with There are two rows of rod-drawing wheels 3 arranged in parallel and arranged along the pulling direction of the rubber rod 8.
  • the rod-drawing wheel 3 is equipped with a rod-drawing wheel 3 motor that drives its rotation.
  • the rotation axis of the rod-drawing wheel 3 is consistent with the extension of the rubber rod 8.
  • the axes are perpendicular, and the outer peripheral edges of the two rows of rod-drawing wheels 3 in the same rod-drawing wheel group are respectively pressed against both sides of the rubber rod 8.
  • each rod-drawing wheel The groups correspond to the rubber rods 8 on each box beam respectively, and the exposed section of the rubber rod 8 is placed between the two rows of rod pulling wheels 3 on the rod pulling wheel set, so that the outer peripheral edge of the rod pulling wheel 3 is pressed against the rubber Rod 8, and then the rod pulling wheel 3 motor rotates the rod pulling wheel 3 so that the rubber rod 8 is gradually pulled out from the poured concrete after being subjected to the rotational friction of the rod pulling wheel 3.
  • the entire device requires operators to pull out the rubber rod 8. 2 to 3 people, a hole box girder and several prestressed pipes are pulled out at both ends of the beam respectively. The pulling time is fast and it only takes a few hours to complete.
  • the telescopic rod of the top pick 4 is in contact with the outer part of the prestressed pipe to balance the friction resistance of the rubber rod 8 and avoid that the entire rubber rod 8 can be pulled out when the rubber rod 8 is pulled out.
  • the fulcrum of the force on the mobile platform is at its bottom, which results in the entire moment being too large and easily causing the risk of the movable platform overturning. Therefore, the support function of the top pick 4 ensures the stability and safety of the entire movable platform during use.
  • the rubber rod 8 in the prestressed pipe is designed to be composed of hollow rubber with a circular cross-sectional area and steel strands penetrating into the hollow to ensure a certain degree of stiffness and flexibility.
  • the prestressed pipe formed by the rubber rod 8 has smooth hole walls, precise dimensions, and high hole forming accuracy.
  • the one-time hole formation can reach 100%, which solves the problem of easy blockage of the box girder prestressed pipe after concrete pouring. It avoids the problems that metal bellows are easy to be damaged and blocked, and the porosity is lower than that of rubber rod 8.
  • the rubber rod 8 produced has a long service life and can be used repeatedly.
  • the use reduces the cost of the prestressed pipe core mold, which is relatively lower than the one-time use cost of metal corrugated pipes.
  • the time required for the rubber rods 8 in the prestressed pipes of the box girder to be pulled out to form holes after the concrete is poured and covered is limited to about 8-15 hours, that is, the rubber rods 8 cannot be pulled out later than 8 hours for the pipe where concrete is poured the latest and the concrete is poured earliest. The pipe cannot be pulled out later than 15 hours.
  • the end of the telescopic rod is connected with a pressure plate for reducing pressure.
  • the telescopic rod contacts the outer part of the prestressed pipe through the pressure plate.
  • its extension structure is much larger than the radial cross section of the telescopic rod to increase the size of the telescopic rod.
  • the contact area with the box girder can thereby reduce the pressure of the telescopic rod on the box girder and avoid the excessive reaction force of the telescopic rod on the box girder, which may cause the concrete on the box girder to be easily damaged.
  • the two rows of rod-drawing wheels 3 on the same rod-drawing wheel group are equipped with sliding brackets.
  • the rod-drawing wheels 3 are all rotated and installed on the sliding brackets, and the sliding brackets are movable and installed on the movable bracket along the direction perpendicular to the pulling direction of the rubber rods 8.
  • the movable workbench 5 is also provided with a driving mechanism that drives the sliding bracket to move, such as using a telescopic oil cylinder, etc.
  • the sliding bracket is moved to the corresponding position through the driving mechanism, so that the two rows
  • the spacing between the rod-drawing wheels 3 matches the radial width of the rubber rod 8, so the spacing between the two rows of rod-drawing wheels 3 can be adjusted in real time according to the rubber rods 8 of different structures, making the entire device wider in use.
  • a row of rod-drawing wheels 3 is adjusted through the driving mechanism to gradually reduce the distance between the two rows of rod-drawing wheels 3, thereby completing the clamping work of the rubber rod 8.
  • the sliding bracket is moved and adjusted manually, and is equipped with a limiting mechanism, such as a jackscrew. After the sliding bracket moves into place, the positioning of the sliding bracket is completed through the jackscrew.
  • the movable workbench 5 is provided with an opening extending perpendicular to the direction in which the rubber rod 8 is pulled out.
  • the top of the sliding bracket extends upward through the opening and is connected to the rod pulling wheel 3.
  • the bottom of the sliding bracket is located on the movable
  • the bottom of the workbench 5 is equipped with a support bracket for the movement of the sliding bracket.
  • the driving mechanism is installed on the support bracket.
  • coaxial holes are provided on the outer peripheral wall of the rod puller 3 for clamping and pulling out. Pull out the rubber rod.
  • the structure of the annular groove of the annular groove matches the structure of the rubber rod 8 to fully increase the contact area between the rod pulling wheel 3 and the rubber rod 8 to ensure effective friction between the two.
  • the inner wall of the annular groove is densely covered with gear teeth for pressing against the outer wall of the rubber rod 8.
  • the gear teeth are distributed at equal intervals along the circumferential direction of the annular groove. The gear teeth increase the friction between the rod pulling wheel 3 and the rubber rod 8 to ensure that the rubber The rod 8 can be effectively pulled out with the rotation of the rod pulling wheel 3 .
  • the movable workbench 5 is also provided with two sets of guardrails 10. Each rod pulling wheel set and the rubber rod 8 are arranged between the two sets of guardrails 10 to prevent the rubber rod 8 from being easily removed from the movable workbench 5 when being pulled out.
  • the two sides of the platform are detached, causing harm to the construction workers, and the rubber rods 8 pass through the limit of the guardrail 10 so that they can be collected between the two guardrails 10, ensuring the convenience of collecting the rubber rods 8.
  • the movable workbench 5 is equipped with a traveling vehicle body 1 that carries the movement thereof.
  • the traveling vehicle body 1 is provided with a number of evenly distributed traveling wheels.
  • the traveling vehicle body 1 is a four-wheel electric trolley that can travel forward and backward and turn left and right to walk freely.
  • the traveling direction of the running wheel is perpendicular to the pulling direction of the rubber rod 8, so that the two rows of rod pulling wheels 3 of the same rod pulling wheel group clamp the rubber rod 8 and rotate to form a pulling force perpendicular to the moving direction of the walking vehicle body 1, preventing the walking vehicle body from moving. 1 is the same as the pulling direction of the rubber rod 8.
  • the bottom of the traveling vehicle body 1 is provided with a push rod. After the moving vehicle body 1 is moved into place, the push rod presses against the ground to ensure that the position of the traveling vehicle body 1 is fixed.
  • the traveling body 1 is provided with a scissor-type lifting bracket 2 that drives the movable workbench 5 to lift.
  • the scissor-type lifting bracket 2 is provided with a lifting cylinder 9 that drives it to expand in the vertical direction.
  • the scissors are driven by the lifting cylinder 9
  • the lifting bracket 2 is raised and lowered, thereby driving the movable workbench 5 to be raised and lowered to adjust the height of the movable workbench 5 to adapt to the prestressed pipe rubber rods 8 of different heights.
  • a monitoring mechanism such as a camera system, etc. is provided on the movable platform to monitor the movement of the rod pulling wheel group in the direction of the vertical box beam to ensure that the rod pulling wheel group moves in place.
  • the bottom end of the scissor-type lifting bracket 2 is installed on the traveling vehicle body 1, and its top is connected to a support bracket.
  • the movable workbench 5 is movable on the support bracket along the pull-out direction of the rubber rod 8 to move vertically closer or farther away. In the direction of the box beam, the movable workbench 5 is effectively adjusted to ensure that the rubber rod 8 has sufficient length to be clamped between the two rows of rod pulling wheels 3, thereby improving the pulling effect of the rubber rod 8.
  • the movable workbench 5 is provided with an operating console 6, and the operating console 6 is located on the side of the guardrail 10 away from the rod pulling wheel 3.
  • the operating console 6 has a built-in operating system.
  • the lifting cylinder 9 is controlled to drive the scissors.
  • the lifting bracket 2 is telescopic, and has a movable workbench 5 that can be lifted and lowered, and can be controlled and matched with the walking wheels.
  • the walking drive mechanism makes the walking wheels rotate and drives the walking body 1 to move to adjust the position of the rod puller wheel group. It is also used to synchronously control the driving mechanism installed on the support bracket to control the movement of the sliding bracket, thereby loosening the Open and clamp the rotating rubber rod 8, and control the top pick 4.
  • a seat 7 is provided on the movable workbench 5 to facilitate the operator to lower the center of gravity and save physical strength.
  • Step 1 The traveling vehicle body 1 is roughly in place, and the rubber rod 8 that needs to be pulled is roughly adjusted to the position between the two rows of rod pulling wheels 3 in the same rod pulling wheel group;
  • Step 2 Adjust the operating system on the operating table 6 to achieve accurate positioning, so that the spacing between the two rows of rod pulling wheels 3 can be accurately adjusted in the vertical and horizontal directions, and the rubber rods 8 that need to be pulled should be aligned and passed Move the sliding bracket and rod pulling wheel 3 to clamp the rubber rod 8;
  • Step 3 Continue to extend the top pick 4 and contact it against the box beam under the control of the operating system, rotate the rod pulling wheel 3 to clamp and rotate the rubber rod 8 and pull it out;
  • the other prestressed pipe rubber rods 8 are pulled out in the same way. After completing the pulling out work of each rubber rod 8 on one side of the box beam, the other side of the beam is completed in the same way. It should be noted that the rubber rods 8 of the same prestressed pipe are composed of two rubber rods 8 with smaller lengths, and their butt joints are wrapped by thin iron sheets and tape.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Bridges Or Land Bridges (AREA)

Abstract

一种箱梁预应力管道橡胶棒抽拔装置,各拔棒轮组均设置在可移动工作台上,并沿垂直于橡胶棒抽拔的方向间隔分布,分别对应各待抽拔的橡胶棒,相邻两组拔棒轮组之间设有平衡橡胶棒所受摩阻力的顶镐,顶镐的伸缩杆伸出可移动工作台并抵接在预应力管道外侧的部分,各拔棒轮组均设有两列平行设置且沿橡胶棒抽拔方向排布的拔棒轮,拔棒轮配套有驱动其自转的拔棒轮电机,拔棒轮的转动轴线与橡胶棒的延伸轴线相垂直,同一拔棒轮组中两列拔棒轮的外周边缘分别抵紧在橡胶棒的两侧,通过设置顶镐对预应力管道外侧部分的抵接,以平衡橡胶棒所受摩阻力,保证整个可移动平台在使用时的平稳性和安全性。

Description

一种箱梁预应力管道橡胶棒抽拔装置 技术领域
本发明涉及机械设备技术领域,特别是涉及一种箱梁预应力管道橡胶棒抽拔装置。
背景技术
后张法预应力钢绞线在桥梁当中是重中之重,在梁体浇筑混凝土前要预埋预留管道。为后张法施工提供张拉通道芯模以往采用金属波纹管,通过应用,其受梁体混凝土重压、因刚度小而易变形,因管壁薄而易破损,因接头对接多而密封性风险高,而且一次性使用投入的成本高。为解决金属波纹管在梁体混凝土浇筑施工中存在上述问题,研制了预制箱梁预应力管道芯模橡胶抽拔棒,其孔壁光滑;尺寸精准,成孔精度高;使用寿命长、反复使用。申请号为201420342592.0、专利名称为橡胶抽拔棒穿棒机的发明专利,其公开了,机体的一侧设有导管,且机体的另一侧分别设有横向滚轮和竖向滚轮,机体的上部分别设有一号上下调节丝杆和二号上下调节丝杆,一号上下调节丝杆的下方活动连接有一号圆滚轮,一号圆滚轮的下方设有一号带齿滚轮,二号上下调节丝杆的下方两侧分别活动连接有二号圆滚轮和三号圆滚轮,二号圆滚轮的下方设有二号带齿滚轮,三号圆滚轮的下方设有三号带齿滚轮,机体的内部下方设有电机,电机的一侧连接有减速机,减速机与一号带齿滚轮连接,但是其单独依靠各个滚轮对橡胶棒进行抽拔,并不能灵活调整,且容易造成整个抽拔设备的工作不稳定。
发明内容
本发明的目的是提供一种箱梁预应力管道橡胶棒抽拔装置,以解决上述现有技术存在的问题,不仅避免了使用金属波纹管易破损、易堵塞、成孔率相对橡胶棒成孔低的情况,而且通过顶镐的伸缩杆抵接在预应力管道外侧的部分,在拔棒轮组抽拔橡胶棒时,能够平衡橡胶棒所受的摩擦阻力,保证整个装置工作时的平稳性,保证了使用时的安全效果。
为实现上述目的,本发明提供了如下方案:本发明提供一种箱梁预应力管道橡胶棒抽拔装置,包括可移动工作台、若干组用于将橡胶棒抽拔出预应力管道的拔棒轮组,各所述拔棒轮组均设置在所述可移动工作台上,并沿垂直于所 述橡胶棒抽拔的方向间隔分布,且分别对应各待抽拔的所述橡胶棒,相邻两组所述拔棒轮组之间设有平衡所述橡胶棒所受摩阻力的顶镐,所述顶镐的伸缩杆伸出所述可移动工作台并抵接在预应力管道外侧的部分,各所述拔棒轮组均设有两列平行设置且沿所述橡胶棒抽拔方向排布的拔棒轮,所述拔棒轮配套有驱动其自转的拔棒轮电机,所述拔棒轮的转动轴线与所述橡胶棒的延伸轴线相垂直,且同一所述拔棒轮组中两列所述拔棒轮的外周边缘分别抵紧在所述橡胶棒的两侧。
本发明相对于现有技术取得了以下技术效果:
各拔棒轮组均设置在可移动工作台上,并沿垂直于橡胶棒抽拔的方向间隔分布,且分别对应各待抽拔的橡胶棒,相邻两组拔棒轮组之间设有平衡橡胶棒所受摩阻力的顶镐,顶镐的伸缩杆伸出可移动工作台并抵接在预应力管道外侧的部分,各拔棒轮组均设有两列平行设置且沿橡胶棒抽拔方向排布的拔棒轮,拔棒轮配套有驱动其自转的拔棒轮电机,拔棒轮的转动轴线与橡胶棒的延伸轴线相垂直,且同一拔棒轮组中两列拔棒轮的外周边缘分别抵紧在橡胶棒的两侧,在使用的过程中,通过移动可移动工作台,使得各个拔棒轮组分别对应各箱梁上的橡胶棒,并将橡胶棒露出的一段置入拔棒轮组上两列拔棒轮之间的位置处,使得拔棒轮的外周边缘抵紧橡胶棒,进而通过拔棒轮电机转动拔棒轮使得橡胶棒受到拔棒轮的转动摩擦后,逐渐从浇筑的混凝土中拔出,更重要的是,在抽拔橡胶棒的过程中,通过顶镐伸缩杆的抵接作用,以平衡橡胶棒所受摩阻力,避免在抽拔橡胶棒时,整个可移动平台所受力的支点在其底部,导致整个力矩过大,容易引发可移动平台倾覆的风险,所以通过顶镐的支撑作用,保证整个可移动平台在使用时的平稳性和安全性。
附图说明
图1为本发明整体结构的主视图;
图2为本发明整体结构的俯视图;
图3为本发明整体结构的侧视图;
其中,1-行走车体、2-剪叉式升降支架、3-拔棒轮、4-顶镐、5-可移动工作台、6-操作台、7-座椅、8-橡胶棒、9-升降油缸、10-防护栏。
具体实施方式
本发明的目的是提供一种箱梁预应力管道橡胶棒抽拔装置,以解决上述现有技术存在的问题,不仅避免了使用金属波纹管易破损、易堵塞、成孔率相对橡胶棒成孔低的情况,而且通过顶镐的伸缩杆抵接在预应力管道外侧的部分,在拔棒轮组抽拔橡胶棒时,能够平衡橡胶棒所受的摩擦阻力,保证整个装置工作时的平稳性,保证了使用时的安全效果。
如图1至图3所示,本实施例提供一种箱梁预应力管道橡胶棒抽拔装置,包括可移动工作台5、若干组用于将橡胶棒8抽拔出预应力管道的拔棒轮组,各拔棒轮组均设置在可移动工作台5上,并沿垂直于橡胶棒8抽拔的方向间隔分布,且分别对应各待抽拔的橡胶棒8,相邻两组拔棒轮组之间设有平衡橡胶棒8所受摩阻力的顶镐4,顶镐4的伸缩杆伸出可移动工作台5并抵接在预应力管道外侧的部分,各拔棒轮组均设有两列平行设置且沿橡胶棒8抽拔方向排布的拔棒轮3,拔棒轮3配套有驱动其自转的拔棒轮3电机,拔棒轮3的转动轴线与橡胶棒8的延伸轴线相垂直,且同一拔棒轮组中两列拔棒轮3的外周边缘分别抵紧在橡胶棒8的两侧,在使用的过程中,通过移动可移动工作台5,使得各个拔棒轮组分别对应各箱梁上的橡胶棒8,并将橡胶棒8露出的一段置入拔棒轮组上两列拔棒轮3之间的位置处,使得拔棒轮3的外周边缘抵紧橡胶棒8,进而通过拔棒轮3电机转动拔棒轮3使得橡胶棒8受到拔棒轮3的转动摩擦后,逐渐从浇筑的混凝土中拔出,整个装置对橡胶棒8的抽拔需要作业人员2至3人,一孔箱梁若干个预应力管道,分别在梁的两端抽拔,完成抽拔时间快,仅需要花费几个小时即可完成,有效的提高了抽拔效率,更重要的是,在抽拔橡胶棒8的过程中,通过顶镐4伸缩杆抵接在预应力管道外侧的部分,以平衡橡胶棒8所受摩阻力,避免在抽拔橡胶棒8时,整个可移动平台所受力的支点在其底部,导致整个力矩过大,容易引发可移动平台倾覆的风险,所以通过顶镐4的支撑作用,保证整个可移动平台在使用时的平稳性和安全性。
其中,预应力管道内的橡胶棒8设计是由断面面积为圆形的空心橡胶和穿入空心的钢绞线组成,确保有一定的刚度和柔性。通过橡胶棒8成型出的预应力管道孔壁光滑、尺寸精准、成孔精度高,一次性成孔达到100%,解决了混凝土浇筑后箱梁预应力管道易堵塞的难题。避免了金属波纹管易破损、易堵塞,成孔率相对橡胶棒8成孔低的问题。且所制作的橡胶棒8使用寿命长、可反复 使用,降低了预应力管道芯模成本,相对比金属波纹管一次性使用的成本低。箱梁预应力管道内的橡胶棒8在混凝土浇筑覆盖后抽拔成孔时间,限8-15小时左右,即:混凝土最晚浇筑的管道不能晚于8小时抽拔橡胶棒8,混凝土最早浇筑的管道不能晚于15小时抽拔。
而且,伸缩杆的端部连接有用于降低压强的压板,伸缩杆通过压板抵接在预应力管道外侧的部分,通过设置压板,其延伸结构远大于伸缩杆的径向截面,以增大伸缩杆与箱梁之间的接触面积,进而减少伸缩杆对箱梁的压强,避免伸缩杆对箱梁的反作用力过大,导致箱梁上的混凝土容易受损。
同一拔棒轮组上的两列拔棒轮3均配套有滑动支架,拔棒轮3均转动安装在滑动支架上,且滑动支架沿垂直于橡胶棒8抽拔的方向可移动安装在可移动工作台5上,可移动工作台5上还设有驱动滑动支架移动的驱动机构,例如采用伸缩油缸等,那么在使用的过程中,通过驱动机构将滑动支架移动至相应位置处,使得两列拔棒轮3之间的间隔与橡胶棒8的径向宽度相匹配,所以能够根据不同结构的橡胶棒8实时调节两列拔棒轮3之间的间距,使得整个装置的使用范围更广。在夹紧橡胶棒8之前,预先测量橡胶棒8的直径和两列拔棒轮3的间隔,将两列拔棒轮3适应性的扩大调节,进而通过工作人员将橡胶棒8的一段放置在两拔棒轮3之间,在通过驱动机构调节一列拔棒轮3,逐渐缩小两列拔棒轮3之间的间隔,完成对橡胶棒8的夹紧工作。另外,可移动工作台5上未设置驱动机构,通过人工对滑动支架进行移动调节,并配套有限位机构,例如顶丝等,在滑动支架移动到位后,通过顶丝完成对滑动支架的定位。
可移动工作台5上开设有沿垂直于橡胶棒8抽拔的方向延伸的开孔,滑动支架的顶部朝上伸出开孔,并与拔棒轮3相连接,滑动支架的底部位于可移动工作台5的下方,并配套有供滑动支架移动的支撑支架,驱动机构安装在支撑支架上,通过设置开孔使得滑动支架的移动不受可移动平台的限制,进而能够带动各拔棒轮3移动,形成用于夹紧橡胶棒8的有效间隔,且通过设置支撑支架保证对滑动支架形成有效支撑,保证滑动支架移动的平稳性,进而能够有效对橡胶棒8形成夹紧效果。
为保证拔棒轮3对橡胶棒8的夹紧效果,使得橡胶棒8能够随拔棒轮3的转动有效被抽拔出,拔棒轮3的外周壁上同轴开设有用于抵紧并抽拔橡胶棒 8的环形槽,环形槽的结构与橡胶棒8的结构相匹配,以充分提高拔棒轮3与橡胶棒8的接触面积,保证两者之间形成有效的摩擦力。
环形槽的内壁上密布有用于抵紧橡胶棒8外壁的轮齿,轮齿沿环形槽周向等间隔分布,通过轮齿以增加拔棒轮3与橡胶棒8之间的摩擦力,确保橡胶棒8能够随拔棒轮3的转动有效被抽拔出。
可移动工作台5上还设有两组防护栏10,各拔棒轮组及橡胶棒8均设置在两组防护栏10之间,避免橡胶棒8在被抽拔出时,容易从可移动平台两侧脱离,造成对施工人员的伤害,而且将橡胶棒8通过防护栏10的限位,使其能够集中在两防护栏10之间进行收集,保证了对橡胶棒8的收集便捷性。
而且,可移动工作台5配套有承载其移动的行走车体1,行走车体1上设有若干均匀分布的行走轮,行走车体1为四轮电动小车,能前后行进和左右转向自由行走,行走轮的行进方向与橡胶棒8抽拔方向相垂直,使得同一拔棒轮组的两列拔棒轮3夹紧橡胶棒8旋转形成垂直行走车体1移动方向的拉力,避免行走车体1与橡胶棒8的抽拔方向相同,在拔棒轮3旋转抽拔橡胶棒8时,容易促使行走车体1移动,导致抽拔工作失效。其中行走车体1的底部设有顶杆,在其移动到位后,顶杆抵紧地面,以保证行走车体1的位置固定。
行走车体1上设有驱动可移动工作台5升降的剪叉式升降支架2,剪叉式升降支架2上设有驱动其沿竖直方向展开的升降油缸9,通过升降油缸9驱动剪叉式升降支架2升降,进而带动可移动工作台5升降,以调节可移动工作台5的高度,适应不同高度的预应力管道橡胶棒8。在可移动平台上设有监测机构,例如摄像系统等,以沿垂直箱梁的方向对拔棒轮组的移动进行监测,确保拔棒轮组移动到位。
剪叉式升降支架2的底端安装在行走车体1上,其顶端连接有支撑支架,可移动工作台5沿橡胶棒8抽拔方向可移动设置在支撑支架上,以在垂直靠近或远离箱梁的方向上,对可移动工作台5形成有效调节,以保证橡胶棒8有足够的长度能够夹紧在两列拔棒轮3之间,提高对橡胶棒8的抽拔效果。
可移动工作台5上设有操作台6,且操作台6位于防护栏10远离拔棒轮3的一侧,操作台6内置有操作系统,通过操控操作台6,控制升降油缸9驱动剪叉式升降支架2伸缩,并带可移动工作台5升降,且能够控制与行走轮配套 的行走驱动机构,使得行走轮转动,并带动行走车体1进行移动,以调节拔棒轮组的位置,还用于同步控制安装在支撑支架上的驱动机构,以控制滑动支架移动,进而松开、夹紧旋转橡胶棒8,且控制顶镐4,在松开橡胶棒8时,顶镐4回油,夹紧橡胶棒8旋转时,顶镐4进油。且在可移动工作台5上设有座椅7,方便操作人员降低重心,节省体力。
整个装置的使用过程如下:步骤一,行走车体1实现大致就位,让需要抽拔的橡胶棒8粗调到同一拔棒轮组中的两列拔棒轮3之间位置;
步骤二,调节操作台6上的操作系统,实现精准就位,让两列拔棒轮3的间隔沿竖直方向和水平方向进行精确调节,并对准需要抽拔的橡胶棒8,并通过移动滑动支架和拔棒轮3夹紧橡胶棒8;
步骤三,继续在操作系统的控制下,将顶镐4伸出并抵接在箱梁上,转动拔棒轮3对橡胶棒8夹紧转动拔出;
其它预应力管道橡胶棒8按同样的方法拔出,完成箱梁的一侧各橡胶棒8的拔出工作后,同样的方法完成梁的另一侧。需要说明的是,同一预应力管道的橡胶棒8是按两个长度较小的橡胶棒8拼接组成,其对接接头是通过薄铁皮和胶带纸包裹而成。

Claims (10)

  1. 一种箱梁预应力管道橡胶棒抽拔装置,其特征在于,包括可移动工作台、若干组用于将橡胶棒抽拔出预应力管道的拔棒轮组,各所述拔棒轮组均设置在所述可移动工作台上,并沿垂直于所述橡胶棒抽拔的方向间隔分布,且分别对应各待抽拔的所述橡胶棒,相邻两组所述拔棒轮组之间设有平衡所述橡胶棒所受摩阻力的顶镐,所述顶镐的伸缩杆伸出所述可移动工作台并抵接在预应力管道外侧的部分,各所述拔棒轮组均设有两列平行设置且沿所述橡胶棒抽拔方向排布的拔棒轮,所述拔棒轮配套有驱动其自转的拔棒轮电机,所述拔棒轮的转动轴线与所述橡胶棒的延伸轴线相垂直,且同一所述拔棒轮组中两列所述拔棒轮的外周边缘分别抵紧在所述橡胶棒的两侧。
  2. 根据权利要求1所述的箱梁预应力管道橡胶棒抽拔装置,其特征在于,所述伸缩杆的端部连接有用于降低压强的压板,所述伸缩杆通过所述压板抵接在所述预应力管道外侧的部分。
  3. 根据权利要求1或2所述的箱梁预应力管道橡胶棒抽拔装置,其特征在于,同一所述拔棒轮组上的两列所述拔棒轮均配套有滑动支架,所述拔棒轮均转动安装在所述滑动支架上,且所述滑动支架沿垂直于所述橡胶棒抽拔的方向可移动安装在所述可移动工作台上,所述可移动工作台上还设有驱动所述滑动支架移动的驱动机构。
  4. 根据权利要求3所述的箱梁预应力管道橡胶棒抽拔装置,其特征在于,所述可移动工作台上开设有沿垂直于所述橡胶棒抽拔的方向延伸的开孔,所述滑动支架的顶部朝上伸出所述开孔,并与所述拔棒轮相连接,所述滑动支架的底部位于所述可移动工作台的下方,并配套有供所述滑动支架移动的支撑支架,所述驱动机构安装在所述支撑支架上。
  5. 根据权利要求4所述的箱梁预应力管道橡胶棒抽拔装置,其特征在于,所述拔棒轮的外周壁上同轴开设有用于抵紧并抽拔所述橡胶棒的环形槽,所述环形槽的结构与所述橡胶棒的结构相匹配。
  6. 根据权利要求5所述的箱梁预应力管道橡胶棒抽拔装置,其特征在于,所述环形槽的内壁上密布有用于抵紧所述橡胶棒外壁的轮齿,所述轮齿沿所述环形槽周向等间隔分布。
  7. 根据权利要求6所述的箱梁预应力管道橡胶棒抽拔装置,其特征在于, 所述可移动工作台上还设有两组防护栏,各所述拔棒轮组及所述橡胶棒均设置在两组所述防护栏之间。
  8. 根据权利要求7所述的箱梁预应力管道橡胶棒抽拔装置,其特征在于,所述可移动工作台配套有承载其移动的行走车体,所述行走车体上设有若干均匀分布的行走轮,所述行走轮的行进方向与所述橡胶棒抽拔方向相垂直。
  9. 根据权利要求8所述的箱梁预应力管道橡胶棒抽拔装置,其特征在于,所述行走车体上设有驱动所述可移动工作台升降的剪叉式升降支架,所述剪叉式升降支架上设有驱动其沿竖直方向展开的升降油缸。
  10. 根据权利要求9所述的箱梁预应力管道橡胶棒抽拔装置,其特征在于,所述剪叉式升降支架的底端安装在所述行走车体上,其顶端连接有支撑支架,所述可移动工作台沿所述橡胶棒抽拔方向可移动设置在所述支撑支架上。
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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202029231U (zh) * 2011-04-06 2011-11-09 中国建筑土木建设有限公司 箱梁钢筋骨架预应力成孔用橡胶抽拔棒穿棒机
CN204221965U (zh) * 2014-06-23 2015-03-25 邓文华 双路预埋橡胶管抽拔装置
CN205951004U (zh) * 2016-08-26 2017-02-15 中铁一局集团有限公司 预制梁橡胶抽拔棒穿棒机
CN107299595A (zh) * 2017-07-21 2017-10-27 北京国铁桥梁技术咨询有限公司 一种桥梁预应力管道拔管穿束台车
CN113752378A (zh) * 2021-09-10 2021-12-07 北京好运达智创科技有限公司 一种箱梁浇筑前橡胶棒及钢绞线穿束及抽拔系统
CN216663816U (zh) * 2021-04-09 2022-06-03 中铁十二局集团第四工程有限公司 一种箱梁预应力管道拔管穿束台车
CN216682714U (zh) * 2021-12-02 2022-06-07 邓文一 拔管穿束夹紧机构和立式多路拔管穿束机
KR20220168880A (ko) * 2021-06-17 2022-12-26 주식회사 승신건설 강연선을 이용한 프리스트레스트 프리플렉스 강합성빔 제작대 및 이를 이용하여 제작되는 프리스트레스트 프리플렉스 강합성빔

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202029231U (zh) * 2011-04-06 2011-11-09 中国建筑土木建设有限公司 箱梁钢筋骨架预应力成孔用橡胶抽拔棒穿棒机
CN204221965U (zh) * 2014-06-23 2015-03-25 邓文华 双路预埋橡胶管抽拔装置
CN205951004U (zh) * 2016-08-26 2017-02-15 中铁一局集团有限公司 预制梁橡胶抽拔棒穿棒机
CN107299595A (zh) * 2017-07-21 2017-10-27 北京国铁桥梁技术咨询有限公司 一种桥梁预应力管道拔管穿束台车
CN216663816U (zh) * 2021-04-09 2022-06-03 中铁十二局集团第四工程有限公司 一种箱梁预应力管道拔管穿束台车
KR20220168880A (ko) * 2021-06-17 2022-12-26 주식회사 승신건설 강연선을 이용한 프리스트레스트 프리플렉스 강합성빔 제작대 및 이를 이용하여 제작되는 프리스트레스트 프리플렉스 강합성빔
CN113752378A (zh) * 2021-09-10 2021-12-07 北京好运达智创科技有限公司 一种箱梁浇筑前橡胶棒及钢绞线穿束及抽拔系统
CN216682714U (zh) * 2021-12-02 2022-06-07 邓文一 拔管穿束夹紧机构和立式多路拔管穿束机

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