CN111186779A - Novel crane boom mounting mode of movable arm tower crane - Google Patents

Novel crane boom mounting mode of movable arm tower crane Download PDF

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Publication number
CN111186779A
CN111186779A CN202010123155.XA CN202010123155A CN111186779A CN 111186779 A CN111186779 A CN 111186779A CN 202010123155 A CN202010123155 A CN 202010123155A CN 111186779 A CN111186779 A CN 111186779A
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China
Prior art keywords
boom
wire rope
crane
tower
luffing
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CN202010123155.XA
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Chinese (zh)
Inventor
王建军
米成宏
衣磊
刘振
郑怀鹏
孙志起
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Xuzhou Construction Machinery Group Co Ltd XCMG
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Xuzhou Construction Machinery Group Co Ltd XCMG
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Priority to CN202010123155.XA priority Critical patent/CN111186779A/en
Priority to PCT/CN2020/081521 priority patent/WO2021168963A1/en
Publication of CN111186779A publication Critical patent/CN111186779A/en
Pending legal-status Critical Current

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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
    • B66C23/00—Cranes 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
    • B66C23/62—Constructional features or details
    • B66C23/64—Jibs
    • B66C23/68—Jibs foldable or otherwise adjustable in configuration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes 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
    • B66C23/62—Constructional features or details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes 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
    • B66C23/62—Constructional features or details
    • B66C23/84—Slewing gear

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

Abstract

本发明涉及一种动臂塔机的新型起重臂安装方式，属于动臂塔机技术领域。动臂塔机完成回转平台、配重、塔顶及变幅机构安装之后进行起重臂安装，起重臂的安装步骤为：进行变幅钢丝绳的穿绕；安装起重臂和起升钢丝绳；安装起重臂拉杆滑轮组。本发明的有益效果是：1）安全性高，起升钢丝绳穿绕及绳端固定臂头过程，完全在地面完成，避免了在高度利用辅助起重机拖拽、安装人员来回走动等高危工作；2）安装效率高，起升钢丝绳穿绕过程完全在地面完成，相比高空作业，大大节约时间，利用辅助机构安装起重臂拉杆滑轮组，安装快速，节约成本；3）人性化设计高，大大减少了高空作业工作及工作时间，人性化高。

Figure 202010123155

The invention relates to a novel boom installation method of a boom tower crane, and belongs to the technical field of boom tower cranes. After the boom tower crane completes the installation of the slewing platform, counterweight, tower top and luffing mechanism, the boom is installed. The installation steps of the boom are: carry out the winding of the luffing wire rope; install the boom and the hoisting wire rope; Install the boom pulley block. The beneficial effects of the present invention are: 1) high safety, the process of hoisting wire rope threading and winding and fixing the arm head at the rope end is completely completed on the ground, avoiding high-risk work such as dragging by an auxiliary crane at a height and installing personnel walking back and forth; 2 ) High installation efficiency, the hoisting wire rope threading and winding process is completely completed on the ground, which greatly saves time compared to high-altitude operations. The auxiliary mechanism is used to install the jib pulley block, which is quick to install and saves costs; 3) The humanized design is high, which greatly reduces the The work and working hours of working at heights are reduced, and the humanization is high.

Figure 202010123155

Description

Novel crane boom mounting mode of movable arm tower crane
Technical Field
The invention relates to a novel boom mounting mode of a swing arm tower crane, and belongs to the technical field of swing arm tower cranes.
Background
The safety and the rapidness of installing the movable arm tower crane for the super high-rise building are always concerns of the industry and customers. After the swing arm tower crane completes the rotary table, the counterweight, the tower top and the mechanism as required, the crane arm can be installed, and the swing arm steel wire rope can be wound in a penetrating way. For the installation of a movable arm tower crane for a super high-rise building, at present, a traditional installation method is mostly adopted at home or abroad, and the traditional method is that a crane boom is firstly installed on a rotary table by using a truck crane; secondly, after the hoisting mechanism and the auxiliary hemp rope are used for threading and winding the luffing steel wire rope, the automobile crane can slowly release the lifting hook until the luffing steel wire rope of the crane boom is stressed; and then, after the steel wire rope of the hoisting mechanism penetrates through the fixed pulley block of the crane boom, one end of the steel wire rope of the hoisting mechanism hangs on the ground, the hoisting steel wire rope is wound on the hook pulley on the ground, then the steel wire rope sleeve and the anti-twisting mechanism are connected, finally, the rope head is lifted to the head of the crane boom by using an auxiliary crane, the anti-twisting mechanism is connected with the joint of the arm head, and then the hoisting steel wire rope is collected. The method needs to wind and lift the steel wire rope at high altitude, and has low safety, low installation efficiency and long consumed time.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a novel jib mounting mode of a swing arm tower crane, which can reduce safety risks and overhead operation, can conveniently and quickly wind steel wire ropes and the like, has high mounting efficiency, is safe and reliable, and greatly saves time cost.
The invention is realized by the following technical scheme: the utility model provides a swing arm tower machine's novel jib loading boom mounting means, swing arm tower machine accomplishes and carries out the jib loading boom installation after rotary platform, counter weight, top of the tower and the installation of luffing mechanism, its characterized in that: the installation steps of the crane boom are as follows:
step 1: threading and winding the amplitude-variable steel wire rope;
step 2: installing a crane boom and a lifting steel wire rope;
and step 3: and installing a boom pull rod pulley block.
The step 1: firstly, a hoisting mechanism and an auxiliary hemp rope are used for penetrating and winding the amplitude-variable steel wire rope with a top pulley block at the top of the tower and a boom pull rod pulley block, and then the boom pull rod pulley block is fixed on the top of the tower.
The step 2: after the assembly of the crane boom structural member is completed, assembling the crane boom pull rod, connecting the pin shaft connecting end of the crane boom pull rod with the top section pin shaft of the crane boom, and placing the crane boom pull rod in a pull rod bracket of the crane boom to be locked;
starting a hoisting mechanism to hoist, enabling a hoisting steel wire rope output by the hoist to reach the ground to be long enough, closing the hoisting hoist, then enabling the hoisting steel wire rope to pass through a pulley along a crane boom according to a hoisting steel wire rope winding diagram, threading a lifting hook according to requirements, and fixing a rope end and rope blocks at each position;
after the assembly is finished, the crane boom is slowly hoisted by using a truck crane, the crane boom integrally inclines by about 20 degrees, the root part of the crane boom is connected with the upper rotary platform of the tower crane by using a pin shaft and is locked by using a safety pin.
The step 3: after the crane boom is installed on the rotary platform, the crane boom pull rod pulley block is movably installed on the crane boom pull rod from the tower top by using an auxiliary mechanism or an auxiliary crane, the crane boom is slowly released, and the luffing mechanism works in a cooperative manner until the crane boom pull rod and the luffing steel wire rope are completely stressed, so that the crane boom is installed.
The invention has the beneficial effects that: 1) the safety is high, the process of threading and winding the lifting steel wire rope and fixing the arm head at the rope end is completely finished on the ground, and high-risk work such as dragging by using an auxiliary crane and walking back and forth by an installer is avoided; 2) the installation efficiency is high, the process of threading and winding the lifting steel wire rope is completely finished on the ground, compared with high-altitude operation, the time is greatly saved, the installation of the boom pull rod pulley block by utilizing the auxiliary mechanism is quick, and the cost is saved; 3) the humanized design is high, the high altitude construction work and the operating time are greatly reduced, and the humanization is high.
Drawings
The invention is further illustrated below with reference to the figures and examples.
FIG. 1 is a schematic structural diagram of a step 1 luffing steel wire rope of the invention after threading;
FIG. 2 is a schematic view of the step 2 crane boom installation of the present invention;
FIG. 3 is a schematic view of step 3 of the present invention where the auxiliary mechanism is connected to the boom linkage block assembly;
FIG. 4 is a schematic view of the step 3 of the present invention illustrating the connection between the traction pull rod pulley block and the pull rod of the auxiliary mechanism;
fig. 5 is a schematic view of the installation completion structure of the present invention.
In the figure: 1. the tower comprises a rotary platform, 2, a counterweight, 3, a tower top, 4, an amplitude variation mechanism, 5, a crane boom, 6, an amplitude variation steel wire rope, 7, a lifting steel wire rope, 8, a crane boom pull rod pulley block, 9, a lifting mechanism, 10, a tower top end pulley block, 11, a crane boom pull rod, 12 and an auxiliary mechanism.
Detailed Description
As shown in fig. 1 to 5, the boom tower crane performs the installation of the boom 5 after completing the installation of the revolving platform 1, the counterweight 2, the tower top 3 and the luffing mechanism 4, and is characterized in that: the installation steps of the crane boom 5 are as follows:
step 1: threading and winding the amplitude-variable steel wire rope 6;
step 2: installing a crane boom 5 and a hoisting steel wire rope 7;
and step 3: and a boom pull rod pulley block 8 is installed.
The step 1: firstly, the amplitude-variable steel wire rope 6 is threaded with the top end pulley block 10 of the tower top and the cargo boom pull rod pulley block 8 by using the hoisting mechanism 9 and the auxiliary hemp rope, and then the cargo boom pull rod pulley block 8 is fixed on the tower top 3.
The step 2: after the assembly of the structural members of the crane boom 5 is finished, assembling the crane boom pull rod 11, connecting the pin shaft connecting end of the crane boom pull rod 11 with the top section pin shaft of the crane boom 5, and placing the crane boom pull rod 11 in a pull rod bracket of the crane boom 5 for locking;
starting a hoisting mechanism 9 to hoist, enabling a hoisting steel wire rope 7 output by hoisting to reach the ground to be long enough, closing the hoisting winch, then enabling the hoisting steel wire rope 7 to pass through a pulley along a crane boom 5 according to a hoisting steel wire rope winding diagram, threading a lifting hook as required, and fixing a rope end and rope blocks at each position;
after the assembly is finished, the crane boom 5 is slowly hoisted by using an automobile crane, the crane boom 5 integrally inclines by about 20 degrees, the root part of the crane boom 5 is connected with the upper rotating platform 1 of the tower crane by using a pin shaft and is locked by using a safety pin.
The step 3: after the crane boom 5 is installed on the rotary platform 1, the crane boom pull rod pulley block 8 is movably installed on the crane boom pull rod 11 from the tower top 3 by using the auxiliary mechanism 12 or the auxiliary crane, the crane is slowly released, and the amplitude changing mechanism 4 works in cooperation until the crane boom pull rod 11 and the amplitude changing steel wire rope 6 are completely stressed, so that the installation of the crane boom 5 is completed.

Claims (4)

1.一种动臂塔机的新型起重臂安装方式，动臂塔机完成回转平台（1）、配重（2）、塔顶（3）及变幅机构（4）安装之后进行起重臂（5）安装，其特征在于：起重臂（5）的安装步骤为：1. A new type of boom installation method for a boom tower crane. The boom tower crane completes the installation of the slewing platform (1), counterweight (2), tower top (3) and luffing mechanism (4) before lifting The installation of the arm (5) is characterized in that: the installation steps of the boom (5) are: 步骤1：进行变幅钢丝绳（6）的穿绕；Step 1: Thread the luffing wire rope (6); 步骤2：安装起重臂（5）和起升钢丝绳（7）；Step 2: Install the boom (5) and the lifting wire rope (7); 步骤3：安装起重臂拉杆滑轮组（8）。Step 3: Install the boom pulley block (8). 2.根据权利要求1所述的一种动臂塔机的新型起重臂安装方式，其特征在于，所述的步骤1：先使用起升机构（9）和辅助麻绳将变幅钢丝绳（6）与塔顶顶端滑轮组（10）及起重臂拉杆滑轮组（8）进行穿绕，再将起重臂拉杆滑轮组（8）固定在塔顶（3）上。2. A new type of boom installation method for a luffing tower crane according to claim 1, characterized in that, in the step 1: first use the hoisting mechanism (9) and the auxiliary hemp rope to lift the luffing wire rope ( 6) Thread with the pulley block (10) at the top of the tower and the pulley block (8) on the jib pulley, and then fix the pulley block (8) on the top of the tower (3). 3.根据权利要求1所述的一种动臂塔机的新型起重臂安装方式，其特征在于，所述的步骤2：在完成起重臂（5）结构件拼装之后，再将起重臂拉杆（11）组装起来，将起重臂拉杆（11）的销轴连接端与起重臂（5）的顶节销轴连接好，并将起重臂拉杆（11）放置于起重臂（5）的拉杆支架中锁好；3. A new type of boom installation method for a luffing tower crane according to claim 1, characterized in that, in the step 2: after completing the assembly of the boom (5) structural parts, the lifting Assemble the boom rod (11), connect the pin connection end of the boom rod (11) with the top pin of the boom (5), and place the boom rod (11) on the boom (5) Lock the tie rod bracket; 启动起升机构（9）起升卷扬，将卷扬输出的起升钢丝绳（7）至地面足够长度，关闭起升卷扬，然后将起升钢丝绳（7）按照起升钢丝绳缠绕图沿起重臂（5）穿过滑轮，按照要求穿绕吊钩，固定好绳端和各处绳挡；Start the hoisting mechanism (9) to lift the hoist, bring the hoisting wire rope (7) output from the hoist to a sufficient length on the ground, close the hoisting hoist, and then lift the hoisting wire rope (7) along the winding diagram of the hoisting wire rope. The heavy arm (5) passes through the pulley, winds the hook as required, and secures the rope end and rope stops; 组装完毕后，用汽车起重机缓缓吊起起重臂（5），起重臂（5）整体倾斜20º左右，将起重臂（5）臂根部与塔机上回转平台（1）用销轴连接，并用安全销锁定。After the assembly is completed, slowly lift the boom (5) with a truck crane. The boom (5) is tilted about 20º as a whole, and the base of the boom (5) is connected to the upper slewing platform (1) of the tower crane with a pin shaft. , and lock it with a safety pin. 4.根据权利要求1所述的一种动臂塔机的新型起重臂安装方式，其特征在于，所述的步骤3：在汽车起重机将起重臂（5）安装在回转平台（1）后，使用辅助机构（12）或辅助起重机将起重臂拉杆滑轮组（8）从塔顶（3）移动安装在起重臂拉杆（11）上，慢慢的将汽车起重机松放，变幅机构（4）协同工作，直至起重臂拉杆（11）与变幅钢丝绳（6）完全受力后，完成起重臂（5）的安装。4. A new type of boom installation method for a luffing tower crane according to claim 1, wherein the step 3: the boom (5) is installed on the slewing platform (1) in the truck crane Afterwards, use the auxiliary mechanism (12) or auxiliary crane to move the pulley block (8) from the top of the tower (3) to the boom pulley (11), slowly release the truck crane, and the luffing mechanism (4) Work together until the boom rod (11) and the luffing wire rope (6) are fully stressed, and the boom (5) installation is completed.
CN202010123155.XA 2020-02-27 2020-02-27 Novel crane boom mounting mode of movable arm tower crane Pending CN111186779A (en)

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CN202010123155.XA CN111186779A (en) 2020-02-27 2020-02-27 Novel crane boom mounting mode of movable arm tower crane
PCT/CN2020/081521 WO2021168963A1 (en) 2020-02-27 2020-03-27 Novel boom installation method for luffing jib tower crane

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CN115180532A (en) * 2022-07-18 2022-10-14 中联重科建筑起重机械有限责任公司 Tower crane boom installation method and tower crane installation method
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