CN114162734A - A tower crane experimental platform - Google Patents

A tower crane experimental platform Download PDF

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Publication number
CN114162734A
CN114162734A CN202111507997.6A CN202111507997A CN114162734A CN 114162734 A CN114162734 A CN 114162734A CN 202111507997 A CN202111507997 A CN 202111507997A CN 114162734 A CN114162734 A CN 114162734A
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CN
China
Prior art keywords
tower
driving device
arm
tower arm
drives
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CN202111507997.6A
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Chinese (zh)
Inventor
杨建伟
刘富
王小慧
王金海
姚德臣
刘佩珊
刘畅东
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Beijing University of Civil Engineering and Architecture
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Beijing University of Civil Engineering and Architecture
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Application filed by Beijing University of Civil Engineering and Architecture filed Critical Beijing University of Civil Engineering and Architecture
Priority to CN202111507997.6A priority Critical patent/CN114162734A/en
Publication of CN114162734A publication Critical patent/CN114162734A/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
    • B66C23/16—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 with jibs supported by columns, e.g. towers having their lower end mounted for slewing movements
    • B66C23/166—Simple cranes with jibs which may be fixed or can slew or luff
    • 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
    • B66C11/02—Trolleys or crabs, e.g. operating above runways with operating gear or operator's cabin suspended, or laterally offset, from runway or track
    • B66C11/04—Underhung trolleys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C13/00—Other constructional features or details
    • B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
    • B66C13/08—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for depositing loads in desired attitudes or positions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C13/00—Other constructional features or details
    • B66C13/16—Applications of indicating, registering, or weighing devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C9/00—Travelling gear incorporated in or fitted to trolleys or cranes
    • B66C9/14—Trolley or crane travel drives
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M99/00—Subject matter not provided for in other groups of this subclass
    • G01M99/005—Testing of complete machines, e.g. washing-machines or mobile phones

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Jib Cranes (AREA)

Abstract

本发明公开一种塔式起重机实验平台，包括塔臂、塔身、起吊结构和驱动机构，塔臂和塔身构成T型的塔式起重机主体结构，起吊结构设置在塔臂的前端，起吊结构下方设有轻质吊杆，起吊结构能够转动轻质吊杆进行两个方向的摆动；轻质吊杆贯穿起吊结构设置，且轻质吊杆能够沿着起吊结构升降；轻质吊杆底部设有起重物体；塔臂的尾部设有一配重块，以保证塔臂平衡；驱动机构包括设在塔臂上的主驱动设备，主驱动设备带动起吊机构沿着塔臂移动，与带动塔臂以及塔臂上的配重块和起吊结构相对于塔身进行旋转。本发明能够降低实验成本，降低一定的危险性，节约人力，减少了来回攀爬塔机，安全方便。

Figure 202111507997

The invention discloses a tower crane experimental platform, comprising a tower arm, a tower body, a hoisting structure and a driving mechanism. The tower arm and the tower body form a T-shaped tower crane main structure, the hoisting structure is arranged at the front end of the tower arm, and the hoisting structure There is a lightweight boom below, and the lifting structure can rotate the lightweight boom to swing in two directions; the lightweight boom is arranged through the lifting structure, and the lightweight boom can be lifted and lowered along the lifting structure; the bottom of the lightweight boom is arranged There is a lifting object; a counterweight is arranged at the tail of the tower arm to ensure the balance of the tower arm; the driving mechanism includes a main driving device arranged on the tower arm, and the main driving device drives the lifting mechanism to move along the tower arm, and drives the tower arm. And the counterweight on the tower arm and the hoisting structure rotate relative to the tower body. The invention can reduce the experiment cost, reduce certain risks, save manpower, reduce the climbing tower crane back and forth, and is safe and convenient.

Figure 202111507997

Description

Tower crane experiment platform
Technical Field
The invention belongs to the technical field of tower cranes, and particularly relates to an experimental platform of a tower crane.
Background
With the technical progress, the luffing mechanism, the luffing trolley and the automatic multiplying power changing device of the horizontal arm tower crane are continuously optimized and designed, the use performance and the efficiency are improved, and the tests on the whole machine are basically adopted for the parameter indexes of the luffing mechanism, the luffing trolley, the hook group performance, the service life and the like of the tower crane in the past, so that the time and the effect cannot be guaranteed. Therefore, development of reliable and specialized test detection devices is required, which is important for design verification of new components. Because the experiment of the outdoor tower crane is dangerous and high in cost, an experiment platform capable of reproducing the lifting, amplitude variation and rotation functions of the tower crane is needed.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides an experimental platform of a tower crane.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a tower crane experiment platform comprises a tower arm, a tower body, a hoisting structure and a driving mechanism, wherein the tower arm and the tower body form a T-shaped tower crane main body structure; the light suspender penetrates through the hoisting structure and can lift along the hoisting structure; a hoisting object is arranged at the bottom of the light suspender; the tail part of the tower arm is provided with a balancing weight to ensure the balance of the tower arm; the driving mechanism comprises a main driving device arranged on the tower arm, and the main driving device drives the hoisting mechanism to move along the tower arm and rotate relative to the tower body together with the tower arm and the balancing weight and hoisting structure on the tower arm.
Furthermore, the driving mechanism further comprises a first driving device (7), a second driving device (10) and a third driving device (11) which are arranged on the hoisting structure (2), the first driving device (7) drives the light suspender (4) to swing along the Y-axis direction, the second driving device (10) drives the light suspender (4) to swing along the X-axis direction, and the third driving device (11) drives the light suspender (4) to move up and down, so that the swinging state of the hoisting object (5) along the X-axis and the Y-axis in the hoisting process is simulated, and an initial angle is set for swinging.
Furthermore, the bottom of the hoisting structure (2) is movably connected with a rotary threaded rod (9), and the rotary threaded rod (9) rotates around the Y axis under the driving of second driving equipment (10); the middle part of the rotary threaded rod (9) is connected with a fixed frame (12), and the fixed frame (12) rotates along with the rotation of the rotary threaded rod (9); the fixed frame (12) is movably connected with a rotating rod (8), and the rotating rod (8) is driven by the first driving device (7) to rotate around the X axis; so that the rotating rod (8) drives the light suspender (4) to rotate around the X axis.
Further, the driving mechanism is driven by a motor, or driven by hydraulic pressure, or driven by a connecting rod, etc.
Further, the shape of the rotary threaded rod (9) adopts a round rod, a rectangular rod, an irregular rod and the like.
Furthermore, the rotary threaded rod (9) is connected with the second driving device (10) by a gear pair, a chain, a belt or the like.
Has the advantages that: the invention can reduce the experiment cost, reduce certain danger, save manpower, reduce the climbing tower crane back and forth, and is safe and convenient. The method can be used for the research of indoor tower crane structure monitoring research, under-actuated swing angle dynamics research, under-actuated swing angle control and the like.
Drawings
FIG. 1 is a schematic view of a partial structure of the present invention;
fig. 2 is a top view of the drive mechanism of the present invention.
In the figure, 1-counterweight block, 2-hoisting structure, 3-tower arm, 4-light suspender, 5-hoisting object, 6-tower body, 7-first driving device, 8-rotating rod, 9-rotating threaded rod, 10-second driving device, 11-third driving device and 12-fixing frame.
Detailed Description
The invention is illustrated below with reference to specific examples. It will be understood by those skilled in the art that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention in any way.
A tower crane experiment platform is shown in figure 1 and comprises a tower arm 3, a tower body 6, a hoisting structure 2 and a driving mechanism, wherein the tower arm 3 and the tower body 6 form a T-shaped tower crane main body structure, the hoisting structure 2 is arranged at the front end of the tower arm 3, a light suspender 4 is arranged below the hoisting structure 2, and the hoisting mechanism 2 can rotate the light suspender 4 to swing in two directions; the light suspender 4 penetrates through the hoisting structure 2, and the light suspender 4 can ascend and descend along the hoisting structure 2; the bottom of the light suspender 4 is provided with a hoisting object 5; the tail part of the tower arm 3 is provided with a balancing weight 1 to ensure the balance of the tower arm 3; the driving mechanism comprises a main driving device (not shown) arranged on the tower arm 3, and the main driving device (not shown) drives the hoisting mechanism 2 to move along the tower arm 3 and drives the tower arm 3 and the balancing weight 1 and the hoisting structure 2 on the tower arm 3 to rotate relative to the tower body 6.
In this embodiment, as shown in fig. 2, the driving mechanism further includes a first driving device 7, a second driving device 10, and a third driving device 11, which are disposed on the lifting structure 2, the first driving device 7 drives the light boom 4 to swing along the Y-axis direction, the second driving device 10 drives the light boom 4 to swing along the X-axis direction, and the third driving device 11 drives the light boom 4 to move up and down, so as to simulate the swing state of the lifting object 5 along the X-axis and the Y-axis during the lifting process, and set an initial angle to swing.
In the embodiment, the bottom of the hoisting structure 2 is movably connected with a rotary threaded rod 9, and the rotary threaded rod 9 rotates around the Y axis under the driving of a second driving device 10; the middle part of the rotary threaded rod 9 is connected with a fixed frame 12, and the fixed frame 12 rotates along with the rotation of the rotary threaded rod 9; the fixed frame 12 is movably connected with a rotating rod 8, and the rotating rod 8 is driven by the first driving device 7 to rotate around the X axis; so that the rotating rod 8 rotates the lightweight boom 4 around the X-axis.
In this embodiment, the driving mechanism is driven by a motor, a hydraulic motor, or a connecting rod.
In this embodiment, the shape of the rotary threaded rod 9 is a round rod, a rectangular rod, or an irregular rod.
In this embodiment, the connection between the rotary threaded rod 9 and the second driving device 10 is a gear pair, or a chain, or a belt.
The working principle of the invention is as follows: a main drive (not shown) provided on the tower arm 3 controls the hoisting structure 2 to move along the tower arm 3 and controls the tower arm 3 to rotate around the intersection of the tower body 6 and the tower arm 3. The first driving device 7 controls the rotating rod 8 to rotate around the X axis, and the rotating rod 8 drives the lightweight suspension rod 4 to rotate around the X axis. The second driving device 10 controls the rotary threaded rod 9 to rotate around the Y axis, and the rotary threaded rod 9 drives the fixing frame 12 to rotate synchronously. The third driving device 11 controls the light-weight boom 4 to move up and down.

Claims (6)

1.一种塔式起重机实验平台，其特征在于，包括塔臂（3）、塔身（6）、起吊结构（2）和驱动机构，塔臂（3）和塔身（6）构成T型的塔式起重机主体结构，起吊结构（2）设置在塔臂（3）的前端，起吊结构（2）下方设有轻质吊杆（4），起吊结构（2）能够转动轻质吊杆（4）进行两个方向的摆动；轻质吊杆（4）贯穿起吊结构（2）设置，且轻质吊杆（4）能够沿着起吊结构（2）升降；轻质吊杆（4）底部设有起重物体（5）；塔臂（3）的尾部设有一配重块（1），以保证塔臂（3）平衡；驱动机构包括设在塔臂（3）上的主驱动设备，主驱动设备带动起吊机构（2）沿着塔臂（3）移动，与带动塔臂（3）以及塔臂（3）上的配重块（1）和起吊结构（2）相对于塔身（6）进行旋转。1. A tower crane experimental platform, characterized in that it comprises a tower arm (3), a tower body (6), a hoisting structure (2) and a drive mechanism, and the tower arm (3) and the tower body (6) form a T-shaped The main structure of the tower crane, the hoisting structure (2) is arranged at the front end of the tower arm (3), the light-weight boom (4) is arranged under the hoisting structure (2), and the hoisting structure (2) can rotate the light-weight boom ( 4) Swing in two directions; the lightweight boom (4) is arranged through the lifting structure (2), and the lightweight boom (4) can be lifted and lowered along the lifting structure (2); the bottom of the lightweight boom (4) A lifting object (5) is provided; a counterweight (1) is arranged at the tail of the tower arm (3) to ensure the balance of the tower arm (3); the driving mechanism includes a main driving device arranged on the tower arm (3), The main driving device drives the hoisting mechanism (2) to move along the tower arm (3), and drives the tower arm (3) and the counterweight (1) and the hoisting structure (2) on the tower arm (3) relative to the tower body ( 6) Rotate. 2.如权利要求1所述的塔式起重机实验平台，其特征在于，所述驱动机构还包括设置在起吊结构（2）上的第一驱动设备（7）、第二驱动设备（10）和第三驱动设备（11），第一驱动设备（7）带动轻质吊杆（4）沿Y轴方向摆动，第二驱动设备（10）带动轻质吊杆（4）沿X轴方向摆动，第三驱动设备（11）带动轻质吊杆（4）上下移动，从而模拟起吊过程中起重物体（5）沿着X和Y轴的摆动状态，以及设定一个初始角度进行摆动。2. The tower crane experimental platform according to claim 1, wherein the driving mechanism further comprises a first driving device (7), a second driving device (10) and The third driving device (11), the first driving device (7) drives the lightweight boom (4) to swing along the Y-axis direction, and the second driving device (10) drives the lightweight boom (4) to swing along the X-axis direction, The third driving device (11) drives the lightweight boom (4) to move up and down, thereby simulating the swinging state of the lifting object (5) along the X and Y axes during the lifting process, and setting an initial angle to swing. 3.如权利要求1或2所述的塔式起重机实验平台，其特征在于，所述起吊结构（2）底部活动连接有一旋转螺纹杆（9），旋转螺纹杆（9）在第二驱动设备（10）带动下围绕Y轴旋转；旋转螺纹杆（9）中部连接有一固定架（12），且该固定架（12）随着旋转螺纹杆（9）旋转而旋转；固定架（12）上活动连接有一旋转杆（8），旋转杆（8）在第一驱动设备（7）带动下围绕X轴旋转；从而旋转杆（8）带动轻质吊杆（4）围绕X轴旋转。3. The tower crane experimental platform according to claim 1 or 2, characterized in that, a rotating threaded rod (9) is movably connected to the bottom of the lifting structure (2), and the rotating threaded rod (9) is connected to the second driving device (10) Driven to rotate around the Y axis; a fixing frame (12) is connected to the middle of the rotating threaded rod (9), and the fixing frame (12) rotates with the rotation of the rotating threaded rod (9); the fixing frame (12) is on the A rotating rod (8) is movably connected, and the rotating rod (8) rotates around the X-axis driven by the first driving device (7); thus, the rotating rod (8) drives the lightweight boom (4) to rotate around the X-axis. 4.如权利要求11或2所述的塔式起重机实验平台，其特征在于，所述驱动机构采用电机驱动，或液压驱动，或连杆驱动。4. The tower crane experimental platform according to claim 11 or 2, characterized in that, the drive mechanism adopts motor drive, or hydraulic drive, or link drive. 5.如权利要求3所述的塔式起重机实验平台，其特征在于，所述旋转螺纹杆（9）的形状采用圆杆，或矩形杆，或不规则杆。5 . The tower crane experimental platform according to claim 3 , wherein the shape of the rotating threaded rod ( 9 ) adopts a round rod, a rectangular rod, or an irregular rod. 6 . 6.如权利要求3所述的塔式起重机实验平台，其特征在于，所述旋转螺纹杆（9）与第二驱动设备（10）相连接方式采用齿轮对、或链条、或皮带。6 . The tower crane experimental platform according to claim 3 , characterized in that, the rotating threaded rod ( 9 ) is connected with the second driving device ( 10 ) by a gear pair, a chain, or a belt. 7 .
CN202111507997.6A 2021-12-10 2021-12-10 A tower crane experimental platform Pending CN114162734A (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101750223A (en) * 2008-12-18 2010-06-23 董明晓 Tower crane testing stand
CN103058069A (en) * 2013-01-04 2013-04-24 中联重科股份有限公司 Flat-arm tower crane
RU2590764C1 (en) * 2015-04-13 2016-07-10 Николай Викторович Мендрух Tower crane
CN207248503U (en) * 2017-08-15 2018-04-17 五邑大学 A kind of three-dimensional overhead crane test device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101750223A (en) * 2008-12-18 2010-06-23 董明晓 Tower crane testing stand
CN103058069A (en) * 2013-01-04 2013-04-24 中联重科股份有限公司 Flat-arm tower crane
RU2590764C1 (en) * 2015-04-13 2016-07-10 Николай Викторович Мендрух Tower crane
CN207248503U (en) * 2017-08-15 2018-04-17 五邑大学 A kind of three-dimensional overhead crane test device

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