WO2013149456A1 - 内爬框架的导向顶紧装置、内爬框架和塔式起重机 - Google Patents

内爬框架的导向顶紧装置、内爬框架和塔式起重机 Download PDF

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Publication number
WO2013149456A1
WO2013149456A1 PCT/CN2012/082055 CN2012082055W WO2013149456A1 WO 2013149456 A1 WO2013149456 A1 WO 2013149456A1 CN 2012082055 W CN2012082055 W CN 2012082055W WO 2013149456 A1 WO2013149456 A1 WO 2013149456A1
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WIPO (PCT)
Prior art keywords
climbing frame
guiding
abutting portion
jacking device
link mechanism
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2012/082055
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English (en)
French (fr)
Inventor
钱建军
毛快
付英雄
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hunan Zoomlion Special Vehicle Co Ltd
Zoomlion Heavy Industry Science and Technology Co Ltd
Original Assignee
Hunan Zoomlion Special Vehicle Co Ltd
Zoomlion Heavy Industry Science and Technology Co Ltd
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Publication date
Application filed by Hunan Zoomlion Special Vehicle Co Ltd, Zoomlion Heavy Industry Science and Technology Co Ltd filed Critical Hunan Zoomlion Special Vehicle Co Ltd
Publication of WO2013149456A1 publication Critical patent/WO2013149456A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/18Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes
    • B66C23/26Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes for use on building sites; constructed, e.g. with separable parts, to facilitate rapid assembly or dismantling, for operation at successively higher levels, for transport by road or rail
    • B66C23/28Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes for use on building sites; constructed, e.g. with separable parts, to facilitate rapid assembly or dismantling, for operation at successively higher levels, for transport by road or rail constructed to operate at successively higher levels
    • B66C23/32Self-hoisting cranes

Definitions

  • Fig. 1 shows a partial installation schematic view of an inner climbing frame of an internal climbing tower crane in the prior art.
  • the inside of the inner climbing frame 200 has a guide roller 500 and a jacking device 600, and the inner climbing frame 200 is mounted on the wall 400 of the elevator shaft of the building through the beam.
  • the guide roller 500 is supported on the outside of the main chord of the standard section 100 to serve as a guide support.
  • the screw of the jacking device 600 is locked, so that the top block of the jacking device 600 is firmly tightened to the outside of the main chord of the standard section 100 to transmit The role of horizontal loads.
  • the guiding roller and the tightening device are two independent devices, which occupy a large space, which makes the design and manufacture of the structural component complicated and cumbersome; in addition, in the non-working condition of the tower crane (climbing) When working in two different working conditions, it is necessary to separately operate the guiding roller and the tightening device to increase the workload, and the operation is complicated.
  • the present invention is directed to a guide jacking device, an inner climbing frame and a tower crane for an inner climbing frame to solve the problems of large occupied space in the prior art, complicated design and manufacture of structural members, and complicated operation.
  • a guiding jacking device for an inner climbing frame is provided.
  • the inner climbing frame includes a body, and the guiding jacking device comprises: a link mechanism, a link mechanism and a body Pivotly connected; a guide wheel pivotally mounted at a first end of the linkage; an adjustment device, the adjustment device being adjustably coupled to the body, the adjustment device comprising a top abutment, abutment and linkage The second end of the connection.
  • the abutting portion is a top block, and the top abutting portion is movably connected to the second end of the link mechanism.
  • the adjusting device further includes an adjusting screw and a lock nut mounted on the adjusting screw, and the adjusting screw is connected to the top abutting portion.
  • the number of the lock nuts is two, the adjusting screw passes through the body, and the two lock nuts are respectively disposed on both sides of the body.
  • the second end of the link mechanism is provided with a card slot, and the end of the top abutting portion is caught in the card slot.
  • the end of the abutting portion is a cylinder.
  • the link mechanism includes two arms and a connecting plate, the two arms are connected by a connecting plate, the guiding wheel is disposed at the first end of the arm, and the top abutting portion is disposed at the second end of the arm.
  • an inner climbing frame comprising a guiding jacking device, the guiding jacking device being the above-described guiding jacking device.
  • a tower crane comprising an inner climbing frame, the inner climbing frame being the inner climbing frame described above.
  • FIG. 1 is a schematic partial view showing a partial installation of an inner climbing frame of an internal climbing tower crane in the prior art
  • FIG. 2 is a schematic view showing an inner climbing frame and a standard section in the present invention
  • FIG. 3 is a schematic view showing another installation diagram of the inner climbing frame and the standard section in the present invention
  • FIG. 4 is a schematic view showing the inner climbing frame and the main chord in a non-working condition (climbing)
  • FIG. 5 is a schematic view showing a state of use of the inner climbing frame and the main chord in the working condition
  • FIG. 6 is a schematic structural view showing the inner climbing frame when the guiding and pressing device is not installed
  • Figure 7 is a schematic cross-sectional view of the CC of Figure 6
  • Figure 8 is a schematic cross-sectional view of the DD of Figure 6
  • Figure 9 is a schematic front view showing a link mechanism in which a guide wheel is mounted
  • Figure 10 is a plan view schematically showing a link mechanism in which a guide wheel is mounted in an embodiment
  • Figure 11 schematically shows another A top view of a linkage mechanism in which a guide wheel is mounted in one embodiment
  • FIG. 12 is a schematic front view showing the adjustment device connected to the top block
  • FIG. 13 is a schematic view showing the adjustment device and the top block in one embodiment Top view when connected
  • Figure 14 schematically shows a top view of the adjustment device in connection with the top block in another embodiment.
  • the inner climbing frame 200 includes a body 210.
  • the guiding jacking device 300 comprises: a link mechanism 310, the link mechanism 310 is pivotally connected with the body 210; a guiding wheel 320, the guiding wheel 320 is pivotally mounted at the first end of the link mechanism 310; the adjusting device 340
  • the adjusting device 340 is adjustably connected to the body 210. Specifically, the adjusting device 340 is movable relative to the body 210.
  • the adjusting device 340 includes a top abutting portion 350, and the top abutting portion 350 is coupled to the second end of the link mechanism 310.
  • the abutting portion 350 is a top block, and the top abutting portion 350 is movably coupled to the second end of the link mechanism 310.
  • FIG. 2 The left side of FIG. 2 shows the positional relationship between the guiding jacking device and the main chord of the standard section 100 when in working condition; the right side of FIG. 2 shows the non-worker Schematic diagram of the positional relationship between the guiding jacking device and the main chord of the standard section 100 when climbing (climbing). 4 and FIG. 5, the link mechanism 310 can be rotated around the middle portion thereof.
  • the driving guide wheel 320 is moved away from the main chord while driving the abutting portion.
  • the 350 moves in a direction close to the main chord and finally causes the abutting portion 350 to be tightened on the side of the main chord to function as a horizontal force.
  • the driving guide wheel 320 moves in a direction approaching the main chord while the driving abutting portion 350 is moved away from the main chord, and finally the guiding wheel 320 is brought close to the side of the main chord. Thereby completing the guiding function when climbing.
  • the guiding jacking device of the invention combines the dual functions of the guiding roller and the jacking device, takes up less space, simplifies the design and manufacture of the structural member; in addition, in the two different working conditions of climbing and working, only It is necessary to operate the guiding and tightening device, so that the two working conditions can be changed, the operation is relatively simple, and the working efficiency is improved.
  • the adjusting device 340 further includes an adjusting screw 342 and a lock nut 341 mounted on the adjusting screw, and the adjusting screw 342 is coupled to the abutting portion 350.
  • the guiding and tightening device of the present invention can be changed under the two conditions of climbing and working, and the operation is very convenient.
  • the number of the lock nuts 341 is two
  • the adjustment screw 342 passes through the body 210
  • the two lock nuts 341 are respectively disposed on both sides of the body 210.
  • the adjusting screw 342 and the abutting portion 350 gradually tighten the main chord of the standard section 100 as the left locking nut 341 rotates, and at the same time, the guiding wheel 320 gradually moves away from the main chord; finally, locks the right Side lock nut 341.
  • the adjusting screw 342 and the abutting portion 350 gradually move away from the main chord of the standard section 100 as the right lock nut 341 rotates, and at the same time, the guide wheel 320 gradually approaches the main chord until the edge thereof is away from the main chord.
  • the chord is about 2-3 mm.
  • FIGS. 7-8 the body 210 of the inner climbing frame 200 is provided with a lug 211, and the link mechanism 310 is pivotally connected to the body 210 through the lug 211.
  • Figure 9 is a schematic front view showing a link mechanism in which a guide wheel is mounted;
  • Figure 10 is a plan view schematically showing a link mechanism in which a guide wheel is mounted in an embodiment;
  • Figure 11 is a schematic view showing another A top view of a linkage mechanism in which a guide wheel is mounted in one embodiment.
  • the second end of the link mechanism 310 is provided with a card slot 313, and the end of the abutting portion 350 is caught in the card slot 313.
  • the end of the abutting portion 350 is a cylinder 351.
  • the abutting portion 350 further includes a top block body 352, and the column body 351 is disposed at an end of the top block body 352.
  • the top block body 352 is square and has an abutment surface that cooperates with the side of the main chord, and the cylinder 351 can be cylindrical so as to be connected during non-working conditions (climbing) and working conditions.
  • the card slot 313 of the lever mechanism 310 rotates about the top abutting portion 350.
  • the link mechanism 310 includes two arms 311 and a connecting plate 312.
  • the two arms 311 are connected by a connecting plate 312, and the guiding wheel 320 is disposed at the arm 311. At one end, the abutting portion 350 is disposed at the second end of the arm 311.
  • the first end of the arm 311 is provided with a shaft 360, and the guide wheel 320 is pivotally mounted on the shaft 360.
  • the number of guide wheels 320 may be one or more.
  • two guide wheels 320 are mounted on the shaft 360, separated by a bushing.
  • a guide wheel 320 is mounted on the shaft 360.
  • the number of the adjusting screws 342 may be one or plural. In the embodiment shown in Fig. 13, the number of the adjusting screws 342 is two, and the two adjusting screws 342 are spaced apart. In the embodiment shown in Fig. 14, the number of the adjusting screws 342 is one.
  • an inner climbing frame comprising a guiding jacking device which is the guiding jacking device 300 of the above embodiments.
  • a tower crane including an inner climbing frame which is the inner climbing frame 200 in each of the above embodiments.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Jib Cranes (AREA)

Abstract

公开了一种内爬框架的导向顶紧装置、内爬框架(200)和塔式起重机。导向顶紧装置(300)包括:连杆机构(310),连杆机构(310)与本体(210)可枢转地连接;导向轮(320),导向轮(320)可枢转地安装在连杆机构(310)的第一端;调节装置(340),调节装置(340)与本体(210)可调节地连接,调节装置(340)包括顶抵部(350),顶抵部(350)与连杆机构(310)的第二端连接。通过调节装置可以使设置在连杆机构两端的导向轮或顶块移动到与标准节的主弦杆相配合的位置处,以实现塔机在非工作工况和工作工况之间的切换,具有占用的空间较小、操作简单、性能可靠的特点。

Description

内爬框架的导向顶紧装置、 内爬框架和塔式起重机 技术领域 本发明涉及起重机领域, 更具体地, 涉及一种内爬框架的导向顶紧装置、 内爬框 架和塔式起重机。 背景技术 图 1示出了现有技术中的内爬塔式起重机的内爬框架的局部安装示意图。 如图 1 所示, 内爬框架 200的内侧有导向滚轮 500和顶紧装置 600, 内爬框架 200通过梁安 装在建筑物的电梯井的墙壁 400上。 爬升时, 导向滚轮 500支在标准节 100的主弦杆 的外侧, 起导向支承作用。爬升完毕后, 塔式起重机处于工作工况时, 将顶紧装置 600 的螺杆锁紧, 使顶紧装置 600的顶块牢牢的顶紧标准节 100的主弦杆的外侧, 以起到 传递水平载荷的作用。 可见, 现有技术中导向滚轮和顶紧装置是独立的两套装置, 所 占的空间较大,会使结构件设计和制造变得 复杂而繁琐;另外,在塔机非工作工况(爬 升)和工作两种不同工况时, 需要分别对导向滚轮和顶紧装置进行操作, 增加工作量, 操作起来比较复杂。 发明内容 本发明旨在提供一种内爬框架的导向顶紧装置、 内爬框架和塔式起重机, 以解决 现有技术中占用空间大、 结构件的设计制造复杂、 操作复杂的问题。 为解决上述技术问题, 根据本发明的第一个方面, 提供了一种内爬框架的导向顶 紧装置, 内爬框架包括本体, 导向顶紧装置包括: 连杆机构, 连杆机构与本体可枢转 地连接; 导向轮, 导向轮可枢转地安装在连杆机构的第一端; 调节装置, 调节装置与 本体可调节地连接, 调节装置包括顶抵部, 顶抵部与连杆机构的第二端连接。 进一步地, 顶抵部是顶块, 且顶抵部与连杆机构的第二端活动连接。 进一步地, 调节装置还包括调节螺杆和安装在调节螺杆上的锁紧螺母, 调节螺杆 与顶抵部连接。 进一步地, 锁紧螺母的个数为两个, 调节螺杆穿过本体, 两个锁紧螺母分别设置 在本体的两侧。 进一步地, 连杆机构的第二端设置有卡槽, 顶抵部的端部卡在卡槽内。 进一步地, 顶抵部的端部为柱体。 进一步地, 连杆机构包括两个臂和连板, 两个臂通过连板连接, 导向轮设置在臂 的第一端, 顶抵部设置在臂的第二端。 进一步地, 两个臂相对应的位置处设置有销孔, 销孔内安装有销轴, 连杆机构通 过销轴与本体可枢转地连接。 根据本发明的第二个方面, 提供了一种内爬框架, 包括导向顶紧装置, 该导向顶 紧装置是上述的导向顶紧装置。 根据本发明的第三个方面, 提供了一种塔式起重机, 包括内爬框架, 该内爬框架 是上述的内爬框架。 本发明通过调节装置可以使设置在连杆机构两端的导向轮或顶块移动到与标准节 的主弦杆相配合的位置处, 以实现塔机在非工作工况(爬升)和工作工况之间的切换, 具有占用的空间较小、 操作简单、 性能可靠的特点。 附图说明 构成本申请的一部分的附图用来提供对本发明的进一步理解, 本发明的示意性实 施例及其说明用于解释本发明, 并不构成对本发明的不当限定。 在附图中: 图 1示意性示出了现有技术中的内爬塔式起重机的内爬框架的局部安装示意图; 图 2示意性示出了本发明中的内爬框架与标准节的一个安装示意图; 图 3示意性示出了本发明中的内爬框架与标准节的另一个安装示意图; 图 4示意性示出了非工作工况 (爬升) 下的内爬框架与主弦杆的使用状态图; 图 5示意性示出了工作工况下的内爬框架与主弦杆的使用状态图; 图 6示意性示出了未安装导向顶紧装置时的内爬框架的结构示意图; 图 7示意性示出了图 6中的 C-C剖视图; 图 8示意性示出了图 6中的 D-D剖视图; 图 9示意性示出了安装了导向轮的连杆机构的主视图; 图 10示意性示出了一个实施例中的安装了导向轮的连杆机构的俯视图; 图 11示意性示出了另一个实施例中的安装了导向轮的连杆机构的俯视图; 图 12示意性示出了调节装置与顶块连接时的主视图; 图 13示意性示出了一个实施例中调节装置与顶块连接时的俯视图; 以及 图 14示意性示出了另一个实施例中调节装置与顶块连接时的俯视图。 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。 作为本发明的第一方面, 提供了一种内爬框架的导向顶紧装置。 如图 2-图 5所示
(其中, 图 2是图 3的 A-A向剖视图), 内爬框架 200包括本体 210。 导向顶紧装置 300包括: 连杆机构 310, 连杆机构 310与本体 210可枢转地连接; 导向轮 320, 导向 轮 320可枢转地安装在连杆机构 310的第一端; 调节装置 340, 调节装置 340与本体 210可调节地连接, 具体地, 调节装置 340相对本体 210可移动, 调节装置 340包括 顶抵部 350, 顶抵部 350与连杆机构 310的第二端连接。 优选地, 顶抵部 350是顶块, 且顶抵部 350与连杆机构 310的第二端活动连接。 请参考图 2, 图 2的左侧示出了处于工作工况时, 导向顶紧装置与标准节 100的 主弦杆之间的位置关系示意图; 图 2的右侧示出了处于非工作工况 (爬升) 时, 导向 顶紧装置与标准节 100的主弦杆之间的位置关系示意图。 请结合图 4和图 5, 连杆机 构 310可以绕其中部进行转动, 当调节装置 340向主弦杆的方向运动时, 驱动导向轮 320向远离主弦杆的方向运动, 同时驱动顶抵部 350向接近主弦杆的方向运动, 并最 终使顶抵部 350顶紧在主弦杆的侧面上, 以起到传递水平力的作用。 当调节装置 340 反向运动时, 驱动导向轮 320向接近主弦杆的方向运动, 同时驱动顶抵部 350向远离 主弦杆的方向运动, 并最终使导向轮 320靠近主弦杆的侧面, 从而完成爬升时的导向 的功能。 可见, 本发明中的导向顶紧装置综合了导向滚轮和顶紧装置的双重功能, 占 用的空间较小, 简化了结构件设计和制造; 另外, 在爬升和工作两种不同工况时, 只 需要操作导向顶紧装置, 就可以实现两种工况的变换, 操作起来比较简单, 提高了工 作效率。 请参考图 4和图 5, 调节装置 340还包括调节螺杆 342和安装在调节螺杆上的锁 紧螺母 341, 调节螺杆 342与顶抵部 350连接。通过拧紧或拧松调节螺杆 342, 便可将 本发明中的导向顶紧装置在爬升和工作这两个工况下变换, 操作起来十分方便。 在一 个优选的实施例中, 锁紧螺母 341的个数为两个, 调节螺杆 342穿过本体 210, 两个 锁紧螺母 341分别设置在本体 210的两侧。 当需要由非工作工况 (爬升) 转变到工作工况时, 可先将图 4和图 5中右侧的一 个锁紧螺母 341松开, 然后再拧紧左侧的那个锁紧螺母 341, 此时调节螺杆 342及顶 抵部 350随着左侧的锁紧螺母 341的旋转而逐渐地顶紧标准节 100的主弦杆, 同时, 导向轮 320则逐渐远离主弦杆; 最后, 锁紧右侧的锁紧螺母 341。 当需要由工作工况 转变到非工作工况 (爬升) 时, 可先将左侧的锁紧螺母 341松开, 然后再拧紧右侧的 锁紧螺母 341。 此时, 调节螺杆 342和顶抵部 350随着右侧的锁紧螺母 341的旋转而 逐渐地远离标准节 100的主弦杆, 同时, 导向轮 320逐渐靠近主弦杆, 直至其边缘距 主弦杆约 2-3mm, 最后, 锁紧左侧的锁紧螺母 341。 请参考图 7-8, 内爬框架 200的本体 210上设置有凸耳 211, 连杆机构 310通过凸 耳 211与本体 210可枢转地连接。 图 9示意性示出了安装了导向轮的连杆机构的主视图;图 10示意性示出了一个实 施例中的安装了导向轮的连杆机构的俯视图;图 11示意性示出了另一个实施例中的安 装了导向轮的连杆机构的俯视图。如图 9-图 11所示,连杆机构 310的第二端设置有卡 槽 313, 顶抵部 350的端部卡在卡槽 313内。再请参考图 12-图 14, 顶抵部 350的端部 为柱体 351, 顶抵部 350还包括顶块本体 352, 柱体 351设置在顶块本体 352的端部。 顶块本体 352是方形的, 具有与主弦杆的侧面相配合的顶抵面, 而柱体 351可以是圆 柱形的, 以便在非工作工况 (爬升) 和工作工况切换时, 使连杆机构 310的卡槽 313 绕顶抵部 350转动。 请参考图 9-图 11所示,在优选的实施例中,连杆机构 310包括两个臂 311和连板 312, 两个臂 311通过连板 312连接, 导向轮 320设置在臂 311的第一端, 顶抵部 350 设置在臂 311的第二端。 臂 311的第一端设置有轴 360, 导向轮 320可枢转地安装在 轴 360上。 导向轮 320的个数可以是一个或多个。 例如, 在图 10所示的实施例中, 轴 360上安装了两个导向轮 320, 二者之间通过轴套隔开。 在图 11所示的实施例中, 轴 360上安装了一个导向轮 320。 进一步地, 两个臂 311相对应的位置处设置有销孔, 销孔内安装有销轴 314, 连 杆机构 310通过销轴 314与本体 210可枢转地连接。 请参考图 12-图 14, 调节螺杆 342的个数可以是一个, 也可以是多个。 在图 13所 示的实施例中, 调节螺杆 342的个数为两个, 这两个调节螺杆 342间隔地设置。 在图 14所示的实施例中, 调节螺杆 342的个数为一个。 作为本发明的第二方面, 提供了一种内爬框架, 包括导向顶紧装置, 该导向顶紧 装置是上述各实施例中的导向顶紧装置 300。 作为本发明的第三方面, 提供了塔式起重机, 包括内爬框架, 该内爬框架是上述 各实施例中的内爬框架 200。 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

权 利 要 求 书
1. 一种内爬框架的导向顶紧装置, 所述内爬框架 (200 ) 包括本体 (210), 其特征在于, 所述导向顶紧装置 (300) 包括:
连杆机构 (310), 所述连杆机构 (310)与所述本体(210)可枢转地连接; 导向轮 (320), 所述导向轮 (320) 可枢转地安装在所述连杆机构 (310) 的第一端;
调节装置(340), 所述调节装置(340)与所述本体(210)可调节地连接, 所述调节装置 (340) 包括顶抵部 (350), 所述顶抵部 (350) 与所述连杆机构 ( 310) 的第二端连接。
2. 根据权利要求 1所述的导向顶紧装置,其特征在于,所述顶抵部(350)是顶块, 且所述顶抵部 (350) 与所述连杆机构 (310) 的第二端活动连接。
3. 根据权利要求 1所述的导向顶紧装置, 其特征在于, 所述调节装置(340)还包 括调节螺杆(342)和安装在所述调节螺杆上的锁紧螺母(341 ), 所述调节螺杆
( 342) 与所述顶抵部 (350) 连接。
4. 根据权利要求 3所述的导向顶紧装置, 其特征在于, 所述锁紧螺母(341 )的个 数为两个,所述调节螺杆(342)穿过所述本体(210),所述两个锁紧螺母(341 ) 分别设置在所述本体 (210) 的两侧。
5. 根据权利要求 1-4中任一项所述的导向顶紧装置, 其特征在于, 所述连杆机构
( 310) 的第二端设置有卡槽 (313 ), 所述顶抵部 (350) 的端部卡在所述卡槽 ( 313 ) 内。
6. 根据权利要求 5所述的导向顶紧装置, 其特征在于, 所述顶抵部(350)的端部 为柱体 (351 )。
7. 根据权利要求 1-4中任一项所述的导向顶紧装置, 其特征在于, 所述连杆机构
( 310)包括两个臂( 311 )和连板( 312 ),所述两个臂(311 )通过所述连板(312) 连接, 所述导向轮 (320) 设置在所述臂 (311 ) 的第一端, 所述顶抵部 (350) 设置在所述臂 (311 ) 的第二端。 根据权利要求 7所述的导向顶紧装置, 其特征在于, 所述两个臂(311 )相对应 的位置处设置有销孔, 所述销孔内安装有销轴(314), 所述连杆机构(310 )通 过所述销轴 (314) 与所述本体 (210) 可枢转地连接。 一种内爬框架, 包括导向顶紧装置, 其特征在于, 所述导向顶紧装置是权利要 求 1-8中任一项所述的导向顶紧装置 (300)。 一种塔式起重机, 包括内爬框架, 其特征在于, 所述内爬框架是权利要求 9所 述的内爬框架 (200)。
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