WO2019196660A1 - 一种中央索面钢箱梁整体式桥面吊机 - Google Patents

一种中央索面钢箱梁整体式桥面吊机 Download PDF

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Publication number
WO2019196660A1
WO2019196660A1 PCT/CN2019/080012 CN2019080012W WO2019196660A1 WO 2019196660 A1 WO2019196660 A1 WO 2019196660A1 CN 2019080012 W CN2019080012 W CN 2019080012W WO 2019196660 A1 WO2019196660 A1 WO 2019196660A1
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WIPO (PCT)
Prior art keywords
bridge
steel box
truss
box girder
distribution beam
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PCT/CN2019/080012
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English (en)
French (fr)
Inventor
汪文霞
李拔周
郭强
谢道平
李阳
阮明华
李海方
Original Assignee
中交武汉港湾工程设计研究院有限公司
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Priority claimed from CN201810311489.2A external-priority patent/CN108439206B/zh
Priority claimed from CN201820494257.0U external-priority patent/CN208265632U/zh
Application filed by 中交武汉港湾工程设计研究院有限公司 filed Critical 中交武汉港湾工程设计研究院有限公司
Publication of WO2019196660A1 publication Critical patent/WO2019196660A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C11/00—Trolleys or crabs, e.g. operating above runways
    • B66C11/14—Trolleys or crabs, e.g. operating above runways adapted to operate on crane or bridge structure of particular configuration, e.g. on reinforced concrete girders of rectangular cross-section
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges

Definitions

  • the invention relates to the technical field of bridge building construction, in particular to a steel cable girder integral bridge crane of a central cable surface.
  • the technical proposal of the invention is: a central cable-slab steel box girder integral bridge crane, comprising a sliding rail which is laid along the bridge to the assembled steel box girder, and a supporting truss which is slidably connected to the sliding rail And a lifting device fixed on the supporting truss; the lower end of the supporting truss is provided with a sliding device slidably connected to the sliding rail; and the sliding device and the sliding rail are provided with a pushing support truss along the slewing bridge a moving thrust cylinder, further comprising: a vertically axially displaceable distribution device between the slide rail and the support truss; the distribution device supported on the support truss when rotating to the cross bridge direction
  • the lower end forms a cross-bridge structure with a width larger than the width of the supporting truss, and the lower end of the supporting truss when rotating to the direction of the bridge does not affect the movement of the supporting truss along the bridge.
  • the first sleeve is mounted with a first traverse cylinder; the first traverse cylinder is arranged in a horizontal direction, the casing is fixed on the first sleeve, and the pushing end is fixed on the front distribution beam.
  • the upper distribution beam is used to drive the front distribution beam to move axially along the first sleeve.
  • the second sleeve is mounted with a second traverse cylinder; the second traverse cylinder is arranged in a horizontal direction, the casing is fixed on the second sleeve, and the pushing end is fixed to the rear distribution beam The upper distribution beam is driven to move axially along the second sleeve.
  • the spreader comprises a cross bar, a fixed rod and a movable rod;
  • the cross bar is a cross beam arranged along the horizontal cross bridge and fixedly connected with the lifting lug on the steel box girder;
  • the lower end of the fixing rod is fixed at one end of the cross bar
  • the upper end is fixedly connected with the sling on the hoisting trolley;
  • the lower end of the movable rod is movably connected to the crossbar along the length of the crossbar, and the upper end is rotatably hingedly connected to the lower end of the sling and the fixed rod and the crossbar to form a triangular structure
  • the fixed rod is mounted on the fixed rod to move the cylinder at the lower end of the push rod.
  • the present invention can further avoid the interference of the stay cable on the entire hoisting structure by installing the front distribution beam and the rear distribution beam which can move in the direction of the transverse bridge, and improve the transport efficiency of the hoisting structure along the bridge movement;
  • the invention can effectively adjust the longitudinal slope of the hoisted steel box girder by changing the length of the cross bar between the movable rod and the fixed rod, improve the safety of the steel box beam section hoisting, and greatly improve the steel box beam section. Assembly efficiency.
  • Figure 1 A front view of the present invention
  • Figure 5 is a schematic view showing the arrangement structure of the front distribution beam and the rear distribution beam of the present invention.
  • Figure 8 is a schematic view showing the structure of the spreader of the present invention.
  • 1 slide rail
  • 2 support truss
  • 3 pumping cylinder
  • 4 front distribution beam
  • 5 rear distribution beam
  • 6 first rotating cylinder
  • 7 first sleeve
  • 8 first traverse Cylinder
  • 9-support 10-uplift cylinder
  • 12-second sleeve first traverse Cylinder
  • 9-support 10-uplift cylinder
  • 11-second rotary cylinder 12-second sleeve
  • 14-ear plate 15-hook
  • 17 walkinging trolley
  • 18 hanging leg
  • 19 first base
  • 20 second base
  • 21 lifting trolley
  • 22 horizontal adjustment cylinder
  • 23 longitudinal adjustment cylinder
  • 24-crossbar 25—fixation rod; - movable rod; 27 - moving cylinder.
  • a cable-stayed bridge with a central cable surface is constructed in a certain place.
  • the main beam is a steel box girder structure.
  • the middle anchor of the steel box girder has two rows of diagonal cables arranged along the transverse bridge.
  • the bridge crane is located between the two rows of stay cables.
  • the main beam assembly work is completed by lifting the steel box girder through the bridge crane.
  • the slide rail 1 of the embodiment is an I-beam structure fixed to the assembled steel box girder along the bridge, and the two slide rails are located between the two rows of stay cables.
  • the supporting truss 2 is a diamond-shaped supporting truss structure supported on the steel box girder at the lower end, and the upper end surface of the supporting truss 2 is placed forward along the front end of the assembled steel box girder which is suspended at the foremost end.
  • the lower end surface of the support truss 2 is provided with a slip device which is slidably coupled to the slide rail 1 by a slip device.
  • the rear end of the supporting truss 2 can be extended after the first section is hoisted.
  • the length of the supporting truss can be extended, and the entire support can be increased.
  • the stability and safety of the truss effectively solve the problem of insufficient space in the first section of the hoisting equipment. It also avoids the need to hoist all structural parts at one time when installing the supporting trusses, and can be assembled on the box girder to improve the transport efficiency.
  • the sliding device of the present embodiment includes a sliding shoe 16 and a traveling carriage 17, the upper end of the sliding shoe 16 is fixed on the lower end surface of the supporting truss 2, and the lower end is slidably connected to the sliding rail 1, and the pushing cylinder 3 is pushed.
  • the housing is fixed on the sliding rail 1 and the pushing end is fixed on the sliding shoe 16.
  • the traveling trolley 17 is a temporary supporting structure that is hooked on the supporting truss 2 when the rear distribution beam 5 is rotated to the direction of the bridge direction. When the truss 2 is opened for lifting the steel box beam, the traveling carriage 17 can be removed.
  • the lower end of the trolley 17 is fixedly connected to the slide rail 1 in the vertical direction and slidably coupled to the slide rail 1 in the direction of the bridge.
  • the embodiment is provided with a hanging leg 18 which is a C-shaped structure, and the hanging leg 18 is a lifting device for lifting or supporting the truss at the upper end of the walking.
  • a temporary supporting structure hooked on the supporting truss 2 the hanging leg 18 is located between the sliding shoe 16 and the traveling carriage 17, and the lower end of the hanging leg 18 is fixedly connected with the sliding rail 1 in the vertical direction, and in the direction of the bridge
  • the slide rail 1 is slidably connected.
  • the distribution device includes a front distribution beam 4 and a rear distribution beam 5 spaced apart along the direction of the bridge.
  • the front distribution beam 4 and the rear distribution beam 5 are supported on the assembled steel box girder.
  • the support beam body having a length greater than the width of the support truss 2 transverse bridge, the front distribution beam 4 is rotatably hingedly connected to the front end of the support truss 2 about a vertical axis, and the rear distribution beam 5 is rotatably hingedly connected to the support truss about a vertical axis 2 backend.
  • the stability of the entire support truss 2 can be enhanced by the long-length distribution beam structure.
  • the lengths of the front distribution beam 4 and the rear distribution beam 5 are actually larger than the transverse bridge spacing of the two rows of stay cables, and the front distribution beam 4 and the rear distribution beam 5 of the present embodiment are used to avoid interference with the stay cables during the movement. It is necessary to be able to rotate from the transverse bridge to the direction of the bridge so that the front distribution beam 4 and the rear distribution beam 5 can pass between the two rows of stay cables.
  • the first sleeve 7 and the front distribution beam 4 of the present embodiment are in sliding connection, and the first sleeve 7 is mounted with a first traverse cylinder 8 and a first traverse cylinder 8 Arranged in a horizontal direction, the housing is fixed to the first sleeve 7, and the pushing end is fixed to the front distribution beam 4 for driving the front distribution beam 4 to move axially along the first sleeve 7.
  • the front distribution beam 4 is driven to move axially along the first sleeve 7 by the first traverse cylinder 8, so that rotation can be achieved in a small range.
  • the front distribution beam 4 of the embodiment When the front distribution beam 4 of the embodiment is in the direction of the transverse bridge, the two ends thereof are supported on the steel box beam. As shown in FIG. 3, the steel box beam is provided with a support 9 on which the support 9 is mounted.
  • the jacking cylinder 10 which is lifted in the vertical direction, the front distribution beam 4 is supported at the upper ends of the jacking cylinders 10 of the two supports 9 when rotating to the cross bridge direction.
  • the front distribution beam 4 can be disengaged from the jacking cylinder 10 by lowering the jacking cylinder 10, facilitating the rotation of the front distribution beam 4.
  • the rear distribution beam 5 of the present embodiment is similar in construction to the front distribution beam 4.
  • the second rotating cylinder 11 is disposed at the rear end of the lower end surface of the supporting truss 2.
  • the upper end of the second rotating cylinder 11 is fixed at the lower end of the supporting truss 2, and the lower end of the second rotating cylinder 11 is provided with an edge.
  • the second sleeve 12, which is open at both ends, is disposed in the horizontal direction, and the rear distribution beam is sleeved in the second sleeve 12 to be driven to rotate about the axis of the second rotary cylinder 11 by the second rotary cylinder 11.
  • the rear distribution beam 5 of the present embodiment also needs to be able to move axially along the second sleeve 12.
  • a second traverse cylinder 13 is mounted on the second sleeve 12, the second traverse cylinder 13 is arranged in a horizontal direction, and the casing is fixed on the second sleeve 12, and the pushing end is fixed on the rear distribution beam 5 for After the drive, the distribution beam 5 moves axially along the second sleeve 12.
  • the rear distribution beam 5 of the present embodiment needs to be secured with steel when in the direction of the transverse bridge.
  • the box girder is fixedly connected.
  • the two ends of the rear distribution beam 5 are provided with an ear plate 14, and the ear plate 14 is provided with a shaft hole, and the ear plate 14 is inserted through the shaft hole when the rear distribution beam 5 is rotated to the transverse bridge direction.
  • the pin is fixedly connected to the lifting lug 15 on the steel box girder.
  • a lifting device for lifting the steel box girder is mounted on the upper end of the supporting truss 2.
  • the hoisting equipment includes a first base 19, a second base 20, and a hoisting trolley 21, and the hoisting trolley 21 is fixed on the second base 20
  • the lateral adjustment cylinder 22 on the first base 19 is driven to move along the horizontal cross bridge, and the lifting carriage 21 is mounted with a spreader for connecting the steel box beam.
  • the first base 19 is located on the upper end surface of the support truss 2, and passes through the support truss 2
  • the longitudinal adjustment cylinder 23 is driven to move horizontally along the bridge. That is, the hoisting trolley 21 of the present embodiment can be moved in the direction of the cross bridge and the direction of the bridge, and the hoisting position is adjusted by this movement.
  • the spreader of the embodiment includes a crossbar 24, a fixed rod 25 and a movable rod 26, and the fixed rod 25 is a cross member which is arranged along the horizontal cross bridge and fixedly connected with the lifting lug 15 on the steel box beam, and the lower end of the fixing rod 25 is fixed to the cross rod
  • the upper end is fixedly connected with the sling on the hoisting trolley 21
  • the lower end of the movable rod 26 is movably connected to the crossbar 24 along the length of the crossbar 24, and the upper end is rotatably hingedly connected to the lower end of the sling and the fixed rod 25, and the horizontal end
  • the rod 24 is formed in a triangular structure
  • the fixed rod 25 is mounted with a pusher movable lever 26 at the lower end to move the cylinder 27, as shown in FIG.
  • the sliding shoe 16 supporting the lower end of the truss 2 is supported on the sliding rail 1, and the front distribution beam 4 is in the direction of the transverse bridge, and both ends thereof are supported by the jacking cylinder 10 on the support 9.
  • the rear distribution beam 5 is also in the direction of the transverse bridge, and both ends thereof are fixedly connected to the lifting lugs 15 on the steel box girder through the ear plate 14, and the supporting truss 2 is stably fixed on the steel box girder, and then the lifting trolley 21 is adjusted. Position, adjust the spreader, and start the lifting construction of the steel box beam.
  • the support truss 2 needs to be moved.
  • the traveling carriage 17 is mounted, the upper end of the traveling carriage 17 is hooked on the rear end of the supporting truss 2, the lower end of the traveling carriage 17 is hooked on the sliding rail 1, and the hanging leg 18 is attached.
  • the ear plate 14 and the lifting lug 15 are removed, and the driving thrust cylinder 3 is pushed to push the supporting truss 2 to move along the sliding rail 1 to the newly assembled steel box girder.
  • the front distribution beam 4 and the rear distribution beam are rotated. 5, and re-fix the two on the steel box beam, remove the walking trolley 17 and the hanging leg 18, and carry out the lifting of the steel beam of the next section.
  • the extended section is installed on the rear end of the supporting truss 2, and the anchoring position of the lower end of the supporting truss 2 is adjusted to increase the entire supporting truss 2, thereby improving the stability of the entire supporting truss 2. Sex and safety, effectively solve the problem of insufficient space in the first section of the hoisting equipment.

Abstract

一种中央索面钢箱梁整体式桥面吊机，包括滑轨（1）、支撑桁架（2）和吊装设备；支撑桁架（2）下端设置有滑动连接于滑轨(1)上的滑移装置；滑移装置与滑轨（1）之间设置有用于顶推支撑桁架（2）沿顺桥向移动的顶推油缸（3），还包括位于滑轨（1）与支撑桁架（2）之间的可绕竖向轴向转动的分配装置；分配装置在转动至横桥向方向时支承于支撑桁架（2）下端形成横桥向宽度大于支撑桁架（2）宽度的垫梁结构，在转动至顺桥向方向时吊挂于支撑桁架（2）下端不影响支撑桁架沿顺桥向移动。该整体式桥面吊机结构简单，操作方便，极大程度提高了钢箱梁吊装效率，解决了中央索面易对桥面吊机转运产生干涉的问题。

Description

一种中央索面钢箱梁整体式桥面吊机 技术领域
本发明涉及桥梁建筑施工技术领域，具体地指一种中央索面钢箱梁整体式桥面吊机。
背景技术
桥面吊机钢箱梁施工最为常用的临时结构，常用的桥面吊机结构形式有整体式和分离式，对双索面的钢箱梁，即可以采用整体式桥面吊机和分离式桥面吊机，对于中央索面钢箱梁结构，亦可采用整体式桥面吊机和分离式桥面吊机，采用何种桥面吊机的形式取决于桥梁设计参数。中央索面的钢箱梁若采用分离式桥面吊机吊装施工，则可以有效的避开施工期间斜拉索对桥面吊机的干涉，但吊装时桥面吊机作用在已装钢箱梁上的反力对钢箱梁存在较大附加应力，对钢箱梁受力不利，对于钢箱梁宽度较大的桥梁来说，分离式桥面吊机具有局限性。当中央索面钢箱梁采用整体式桥面吊机吊装施工时，则存在桥面吊机受斜拉索干扰的难题。因此，传统整体式桥面吊机对中央索面钢箱梁施工不适用。
发明内容
本发明的目的就是要解决上述背景技术中提到的现有情况下中央索面的钢箱梁吊装不能使用整体式桥面吊机的问题，提供一种中央索面钢箱梁整体式桥面吊机。
本发明的技术方案为：一种中央索面钢箱梁整体式桥面吊机，包括沿顺桥向铺设于已拼装好的钢箱梁上的滑轨、滑动连接于滑轨上的支撑桁架和固定于支撑桁架上的吊装设备；所述的支撑桁架下端设置有滑动连接于滑轨上的滑移装置；所述的滑移装置与滑轨之间设置有 用于顶推支撑桁架沿顺桥向移动的顶推油缸，其特征在于：还包括位于滑轨与支撑桁架之间的可绕竖向轴向转动的分配装置；所述的分配装置在转动至横桥向方向时支承于支撑桁架下端形成横桥向宽度大于支撑桁架宽度的垫梁结构，在转动至顺桥向方向时吊挂于支撑桁架下端不影响支撑桁架沿顺桥向移动。
进一步的所述的分配装置包括沿顺桥向方向间隔布置的前分配梁和后分配梁；所述的前分配梁与后分配梁为支撑于已拼装好的钢箱梁上的、长度大于支撑桁架横桥向宽度的支撑梁体，前分配梁可绕竖直轴线转动地铰接连接于支撑桁架前端；所述的后分配梁可绕竖直轴线转动地铰接连接于支撑桁架后端。
进一步的所述的支撑桁架下端面的顺桥向前端设置有第一转动油缸；所述的第一转动油缸上端固定在支撑桁架下端，第一转动油缸的下端设置有沿水平方向布置的两端开口的第一套筒；所述的前分配梁穿设于第一套筒内通过第一转动油缸驱动绕第一转动油缸轴线转动。
进一步的所述的第一套筒上安装有第一横移油缸；所述的第一横移油缸沿水平方向布置，其壳体固定在第一套筒上，顶推端固定在前分配梁上用以驱动前分配梁沿第一套筒轴向移动。
进一步的还包括置于已拼装好的钢箱梁上的支座；所述的支座上安装有可沿竖直方向顶升的顶升油缸；所述的前分配梁在转动至横桥向方向时其两端分别支撑于两个支座的顶升油缸上端。
进一步的所述的支撑桁架下端面的顺桥向后端设置有第二转动油缸；所述的第二转动油缸上端固定在支撑桁架下端，第二转动油缸的下端设置有沿水平方向布置的两端开口的第二套筒；所述的后分配梁套设于第二套筒内通过第二转动油缸驱动绕第二转动油缸轴线转动。
进一步的所述的第二套筒上安装有第二横移油缸；所述的第二横移油缸沿水平方向布置，其壳体固定在第二套筒上，顶推端固定在后 分配梁上用以驱动后分配梁沿第二套筒轴向移动。
进一步的所述的后分配梁两端设置有耳板；所述的耳板上开设有轴孔，耳板在后分配梁转动至横桥向方向时通过穿设于轴孔内的销轴与钢箱梁上的吊耳固定连接。
进一步的所述的滑移装置包括滑靴和行走小车；所述的滑靴上端固定在支撑桁架下端面顺桥向前端，下端滑动连接于滑轨；所述的顶推油缸壳体固定在滑轨上，顶推端固定在滑靴上；所述的行走小车为在后分配梁转动至顺桥向方向时上端钩挂在支撑桁架上的临时支撑结构，行走小车的下端在竖直方向上与滑轨固定连接、在顺桥向方向上与滑轨滑动连接。
进一步的还包括挂腿；所述的挂腿为钩挂在支撑桁架上的临时支撑结构，挂腿位于滑靴和行走小车之间，挂腿的下端在竖直方向上与滑轨固定连接、在顺桥向方向上与滑轨滑动连接。
所述的吊装设备包括第一底座、第二底座和吊装小车；所述的吊装小车固定在第二底座上通过第一底座上的横向调节油缸驱动沿水平横桥向移动，吊装小车上安装有用于连接钢箱梁的吊具；所述的第一底座位于支撑桁架的上端面，通过支撑桁架上的纵向调节油缸驱动沿水平顺桥向移动。
所述的吊具包括横杆、固定杆和活动杆；所述的横杆为沿水平横桥向布置并与钢箱梁上吊耳固定连接的横梁；所述的固定杆下端固定在横杆一端，上端与吊装小车上的吊索固定连接；所述的活动杆下端可沿横杆长度方向移动地连接于横杆，上端可转动地铰接连接于吊索下端与固定杆、横杆形成三角形结构；所述的固定杆上安装有顶推活动杆下端移动地移动油缸。
所述的支撑桁架为下端支承于钢箱梁上的菱形支撑桁架结构，支撑桁架上端面顺桥向前端悬置于前分配梁顺桥向前方。
本发明的优点有：1、本发明通过设置可转动的前分配梁和后分配梁既保证支撑桁架具有良好的稳定性，又避免了长度较长的分配梁 可能会与斜拉索产生干涉阻碍支撑桁架移动的问题发生；
2、本发明通过安装可沿横桥向方向移动的前分配梁和后分配梁，能够进一步规避斜拉索对整个吊装结构的干扰，提高吊装结构沿顺桥向移动的转运效率；
3、本发明通过在支撑桁架上安装滑靴与行走小车，既保证了支撑桁架顺桥向移动时的稳定性，又提高了支撑桁架沿顺桥向转运的效率，减小了摩擦阻力；
4、本发明在首节钢箱梁吊装完成后，可以在支撑桁架的后端增设其他节段以便于延长支撑桁架顺桥向长度，可有效解决吊装设备首节段站位空间不足的问题；
5、本发明通过改变活动杆与固定杆之间的横杆长度能够有效调节吊装的钢箱梁的纵坡，提高钢箱梁节段吊装的安全性，极大程度提高了钢箱梁节段拼装效率。
本发明的整体式桥面吊机结构简单，操作方便，极大程度提高了钢箱梁吊装效率，解决了中央索面易对桥面吊机转运产生干涉的问题，节省了施工时间，具有极大的推广价值。
附图说明
图1：本发明的主视图；
图2：本发明的侧视图；
图3：本发明的前分配梁与支撑桁架安装结构示意图；
图4：本发明的后分配梁安装结构示意图；
图5：本发明的前分配梁和后分配梁布置结构示意图；
图6：本发明的支撑桁架与滑靴和行走小车安装结构示意图；
图7：本发明的吊装小车布置结构示意图；
图8：本发明的吊具结构示意图；
其中：1—滑轨；2—支撑桁架；3—顶推油缸；4—前分配梁；5—后分配梁；6—第一转动油缸；7—第一套筒；8—第一横移油缸；9— 支座；10—顶升油缸；11—第二转动油缸；12—第二套筒；13—第二横移油缸；14—耳板；15—吊耳；16—滑靴；17—行走小车；18—挂腿；19—第一底座；20—第二底座；21—吊装小车；22—横向调节油缸；23—纵向调节油缸；24—横杆；25—固定杆；26—活动杆；27—移动油缸。
具体实施方式
下面结合附图和具体实施例对本发明作进一步的详细说明。
某地修建中央索面的斜拉索桥，主梁为钢箱梁结构，钢箱梁中间锚固有两排沿横桥向间隔布置的斜拉索，桥面吊机位于两排斜拉索之间，通过桥面吊机吊装钢箱梁完成主梁拼装施工。
如图1～8，包括沿顺桥向铺设于已拼装好的钢箱梁上的滑轨1、滑动连接于滑轨1上的支撑桁架2和固定于支撑桁架2上的吊装设备。本实施例的滑轨1为沿顺桥向固定于已拼装好的钢箱梁上的工字钢结构，两条滑轨位于两排斜拉索之间。
如图1和6所示，支撑桁架2为下端支承于钢箱梁上的菱形支撑桁架结构，支撑桁架2上端面顺桥向前端悬置于最前端的已拼装好的钢箱梁顺桥向前方。支撑桁架2的下端面设置有滑移装置，通过滑移装置滑动连接于滑轨1上。支撑桁架2的后端在完成首节吊装后可以进行延长，通过沿长支撑桁架下端顺桥向长度，然后改变支撑桁架后端斜撑锚固位置即可延长支撑桁架顺桥向长度，增加整个支撑桁架的稳定性和安全性，有效解决吊装设备首节段站位空间不足的问题。也避免了在安装支撑桁架时，需要一次性吊装所有结构部分，可以在箱梁上后续拼装，提高了转运效率。
如图6所示，本实施例的滑移装置包括滑靴16和行走小车17，滑靴16上端固定在支撑桁架2下端面顺桥向前端，下端滑动连接于滑轨1，顶推油缸3壳体固定在滑轨1上，顶推端固定在滑靴16上，行走小车17为在后分配梁5转动至顺桥向方向时上端钩挂在支撑桁 架2上的临时支撑结构，当支撑桁架2上开设进行吊装钢箱梁时，就可以将行走小车17拆除掉。行走小车17的下端在竖直方向上与滑轨1固定连接、在顺桥向方向上与滑轨1滑动连接。
为了在顺桥向移动支撑桁架2的过程中保持稳定性，本实施例安装有挂腿18，挂腿18为C型结构，挂腿18为吊装设备在进行吊装或者是支撑桁架在行走时上端钩挂在支撑桁架2上的临时支撑结构，挂腿18位于滑靴16和行走小车17之间，挂腿18的下端在竖直方向上与滑轨1固定连接、在顺桥向方向上与滑轨1滑动连接。
在支撑桁架2沿顺桥向移动时，支撑桁架2的前端是处于受压状态，因此滑靴16是被压迫在滑轨1上，而行走小车17处于受拉状态，需要保证行走小车17能够钩挂在滑轨1上限制其沿竖向移动。
实际使用时，支撑桁架2不能单独通过滑轨1进行支撑限位(滑轨1位于两排斜拉索之间，间距较短，难以支撑较为庞大的支撑桁架2)，因此本实施例在支撑桁架2与滑轨1之间布置有分配装置。
如图1～5所示，分配装置包括沿顺桥向方向间隔布置的前分配梁4和后分配梁5，前分配梁4与后分配梁5为支撑于已拼装好的钢箱梁上的、长度大于支撑桁架2横桥向宽度的支撑梁体，前分配梁4可绕竖直轴线转动地铰接连接于支撑桁架2前端，后分配梁5可绕竖直轴线转动地铰接连接于支撑桁架2后端。通过长度较长的分配梁结构，能够增强整个支撑桁架2吊装时的稳定性。
前分配梁4与后分配梁5的长度实际上大于两排斜拉索的横桥向间距，为了避免移动过程中与斜拉索产生干涉，本实施例的前分配梁4与后分配梁5需要能够从横桥向方向转动至顺桥向方向，以便于前分配梁4与后分配梁5能够从两排斜拉索之间通过。
如图3和5所示。支撑桁架2下端面的顺桥向前端设置有第一转动油缸6，第一转动油缸6上端固定在支撑桁架2下端，第一转动油缸6的下端设置有沿水平方向布置的两端开口的第一套筒7，前分配梁4穿设于第一套筒7内通过第一转动油缸6驱动绕第一转动油缸6 轴线转动。前分配梁4通过第一转动油缸6的驱动绕竖直轴线转动，实现从横桥向方向转动至顺桥向方向，不与斜拉索产生干涉。
为了进一步提高前分配梁4转动效率，本实施例第一套筒7与前分配梁4之间为滑动连接，第一套筒7上安装有第一横移油缸8，第一横移油缸8沿水平方向布置，其壳体固定在第一套筒7上，顶推端固定在前分配梁4上用以驱动前分配梁4沿第一套筒7轴向移动。在转动空间较为狭小的情况下，通过第一横移油缸8驱动前分配梁4沿第一套筒7轴向移动，能够在小范围内实现转动。
本实施例的前分配梁4处于横桥向方向时，其两端是支撑于钢箱梁上的，如图3所示，钢箱梁上设置有支座9，支座9上安装有可沿竖直方向顶升的顶升油缸10，前分配梁4在转动至横桥向方向时其两端分别支撑于两个支座9的顶升油缸10上端。在前分配梁4需要转动时，通过降低顶升油缸10就能将前分配梁4与顶升油缸10脱离，方便前分配梁4的转动。
同样的，本实施例的后分配梁5与前分配梁4结构类似。如图4～5所示，支撑桁架2下端面的顺桥向后端设置有第二转动油缸11，第二转动油缸11上端固定在支撑桁架2下端，第二转动油缸11的下端设置有沿水平方向布置的两端开口的第二套筒12，后分配梁套设于第二套筒12内通过第二转动油缸11驱动绕第二转动油缸11轴线转动。
同样的，本实施例的后分配梁5也需要能够沿第二套筒12轴向移动。第二套筒12上安装有第二横移油缸13，第二横移油缸13沿水平方向布置，其壳体固定在第二套筒12上，顶推端固定在后分配梁5上用以驱动后分配梁5沿第二套筒12轴向移动。
由于本实施例的支撑桁架2的后端与钢箱梁或是滑轨1之间实际上是处于受拉状态，因此本实施例的后分配梁5在处于横桥向方向时需要保证与钢箱梁固定连接。如图4所示，后分配梁5两端设置有耳板14，耳板14上开设有轴孔，耳板14在后分配梁5转动至横桥向 方向时通过穿设于轴孔内的销轴与钢箱梁上的吊耳15固定连接。
支撑桁架2的上端安装有用于吊装钢箱梁的吊装设备，如图7所示，吊装设备包括第一底座19、第二底座20和吊装小车21，吊装小车21固定在第二底座20上通过第一底座19上的横向调节油缸22驱动沿水平横桥向移动，吊装小车21上安装有用于连接钢箱梁的吊具，第一底座19位于支撑桁架2的上端面，通过支撑桁架2上的纵向调节油缸23驱动沿水平顺桥向移动。即本实施例的吊装小车21可以沿横桥向方向和顺桥向方向移动，通过这种移动来调节吊装位置。
本实施例的吊具包括横杆24、固定杆25和活动杆26，固定杆25为沿水平横桥向布置并与钢箱梁上吊耳15固定连接的横梁，固定杆25下端固定在横杆24一端，上端与吊装小车21上的吊索固定连接，活动杆26下端可沿横杆24长度方向移动地连接于横杆24，上端可转动地铰接连接于吊索下端与固定杆25、横杆24形成三角形结构，固定杆25上安装有顶推活动杆26下端移动地移动油缸27，如图8所示。
通过改变活动杆26的位置，能够调节吊装钢箱梁的纵坡位置，这种结构形式有效的避免了直接通过调整横杆24长度来调整纵坡存在的风险。
实际使用时，支撑桁架2下端的滑靴16支撑于滑轨1上，前分配梁4处于横桥向方向，其两端通过支座9上的顶升油缸10支撑。后分配梁5也处于横桥向方向，其两端通过耳板14与钢箱梁上的吊耳15固定连接，此时支撑桁架2稳定地固定于钢箱梁上，然后调节吊装小车21的位置，调节吊具，开始进行钢箱梁的吊装施工。
吊装的钢箱梁拼装完成后，需要移动支撑桁架2。安装行走小车17，将行走小车17的上端钩挂在支撑桁架2的后端，将行走小车17的下端钩挂在滑轨1上，安装挂腿18。然后将耳板14与吊耳15进行拆除，驱动顶推油缸3顶推支撑桁架2沿滑轨1移动至刚拼装好的钢箱梁上，移动到位后，转动前分配梁4和后分配梁5，并将两者重 新固定在钢箱梁上，拆除行走小车17和挂腿18，进行下一节段钢箱梁的吊装。
完成首节钢箱梁的吊装后，对支撑桁架2的后端安装延长节段，调节支撑桁架2上的斜撑下端的锚固位置，对整个支撑桁架2进行增长，提高整个支撑桁架2的稳定性和安全性，有效解决吊装设备首节段站位空间不足的问题。
按照上述步骤依次进行吊装，直至所有的钢箱梁拼装完成。
以上显示和描述了本发明的基本原理、主要特征和本发明的优点。本行业的技术人员应该了解，本发明不受上述实施例的限制，上述实施例和说明书中描述的只是说明本发明的原理，在不脱离本发明精神和范围的前提下本发明还会有各种变化和改进，这些变化和改进都落入要求保护的本发明范围内。本发明要求保护范围由所附的权利要求书及其等同物界定。

Claims (10)

  1. 一种中央索面钢箱梁整体式桥面吊机，包括沿顺桥向铺设于已拼装好的钢箱梁上的滑轨(1)、滑动连接于滑轨(1)上的支撑桁架(2)和固定于支撑桁架(2)上的吊装设备；所述的支撑桁架(2)下端设置有滑动连接于滑轨(1)上的滑移装置；所述的滑移装置与滑轨(1)之间设置有用于顶推支撑桁架(2)沿顺桥向移动的顶推油缸(3)，其特征在于：还包括位于滑轨(1)与支撑桁架(2)之间的可绕竖向轴向转动的分配装置；所述的分配装置在转动至横桥向方向时支承于支撑桁架(2)下端形成横桥向宽度大于支撑桁架(2)宽度的垫梁结构，在转动至顺桥向方向时吊挂于支撑桁架(2)下端不影响支撑桁架(2)沿顺桥向移动。
  2. 如权利要求1所述的一种中央索面钢箱梁整体式桥面吊机，其特征在于：所述的分配装置包括沿顺桥向方向间隔布置的前分配梁(4)和后分配梁(5)；所述的前分配梁(4)与后分配梁(5)为支撑于已拼装好的钢箱梁上的、长度大于支撑桁架(2)横桥向宽度的支撑梁体，前分配梁(4)可绕竖直轴线转动地铰接连接于支撑桁架(2)前端；所述的后分配梁(5)可绕竖直轴线转动地铰接连接于支撑桁架(2)后端。
  3. 如权利要求2所述的一种中央索面钢箱梁整体式桥面吊机，其特征在于：所述的支撑桁架(2)下端面的顺桥向前端设置有第一转动油缸(6)；所述的第一转动油缸(6)上端固定在支撑桁架(2)下端，第一转动油缸(6)的下端设置有沿水平方向布置的两端开口的第一套筒(7)；所述的前分配梁(4)穿设于第一套筒(7)内通过第一转动油缸(6)驱动绕第一转动油缸(6)轴线转动。
  4. 如权利要求3所述的一种中央索面钢箱梁整体式桥面吊机，其特征在于：所述的第一套筒(7)上安装有第一横移油缸(8)；所述的第一横移油缸(8)沿水平方向布置，其壳体固定在第一套筒(7)上，顶推端固定在前分配梁(4)上用以驱动前分配梁(4)沿第一套筒(7)轴向移动。
  5. 如权利要求2、3过4所述的一种中央索面钢箱梁整体式桥面吊机，其特征在于：还包括置于已拼装好的钢箱梁上的支座(9)；所述的支座(9)上安装有可沿竖直方向顶升的顶升油缸(10)；所述的前分配梁(4)在转动至横桥向方向时其两端分别支撑于两个支座(9)的顶升油缸(10)上端。
  6. 如权利要求2所述的一种中央索面钢箱梁整体式桥面吊机，其特征在于：所述的支撑桁架(2)下端面的顺桥向后端设置有第二转动油缸(11)；所述的第二转动油缸(11)上端固定在支撑桁架(2)下端，第二转动油缸(11)的下端设置有沿水平方向布置的两端开口的第二套筒(12)；所述的后分配梁套设于第二套筒(12)内通过第二转动油缸(11)驱动绕第二转动油缸(11)轴线转动。
  7. 如权利要求6所述的一种中央索面钢箱梁整体式桥面吊机，其特征在于：所述的第二套筒(12)上安装有第二横移油缸(13)；所述的第二横移油缸(13)沿水平方向布置，其壳体固定在第二套筒(12)上，顶推端固定在后分配梁(5)上用以驱动后分配梁(5)沿第二套筒(12)轴向移动。
  8. 如权利要求1、2、6或7任一所述的一种中央索面钢箱梁整体式桥面吊机，其特征在于：所述的后分配梁(5)两端设置有耳板(14)；所述的耳板(14)上开设有轴孔，耳板(14)在后分配梁(5)转动至横桥向方向时通过穿设于轴孔内的销轴与钢箱梁上的吊耳(15)固定连接。
  9. 如权利要求1所述的一种中央索面钢箱梁整体式桥面吊机，其特征在于：所述的滑移装置包括滑靴(16)和行走小车(17)；所述的滑靴(16)上端固定在支撑桁架(2)下端面顺桥向前端，下端滑动连接于滑轨(1)；所述的顶推油缸(3)壳体固定在滑轨(1)上，顶推端固定在滑靴(16)上；所述的行走小车(17)为在后分配梁(5)转动至顺桥向方向时上端钩挂在支撑桁架(2)上的临时支撑结构，行走小车(17)的下端在竖直方向上与滑轨(1)固定连接、在顺桥 向方向上与滑轨(1)滑动连接。
  10. 如权利要求9所述的一种中央索面钢箱梁整体式桥面吊机，其特征在于：还包括挂腿(18)；所述的挂腿(18)为上端钩挂在支撑桁架(2)上的临时支撑结构，挂腿(18)位于滑靴(16)和行走小车(17)之间，挂腿(18)的下端在竖直方向上与滑轨(1)固定连接、在顺桥向方向上与滑轨(1)滑动连接。
PCT/CN2019/080012 2018-04-09 2019-03-28 一种中央索面钢箱梁整体式桥面吊机 WO2019196660A1 (zh)

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CN115453870A (zh) * 2022-08-31 2022-12-09 南京工业大学 一种基于滑模理论的桥吊全局鲁棒抗扰控制方法
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