CN117720019A - Tower crane with damper - Google Patents
Tower crane with damper Download PDFInfo
- Publication number
- CN117720019A CN117720019A CN202311797136.5A CN202311797136A CN117720019A CN 117720019 A CN117720019 A CN 117720019A CN 202311797136 A CN202311797136 A CN 202311797136A CN 117720019 A CN117720019 A CN 117720019A
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- damper
- lifting
- damping control
- tower
- crane
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- 230000007246 mechanism Effects 0.000 claims abstract description 67
- 238000013016 damping Methods 0.000 claims abstract description 54
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 230000009467 reduction Effects 0.000 claims description 2
- 241000288140 Gruiformes Species 0.000 abstract description 42
- 239000000463 material Substances 0.000 abstract description 5
- 241000124872 Grus grus Species 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 9
- 238000004804 winding Methods 0.000 description 5
- 230000007704 transition Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
Abstract
The invention relates to the technical field of cranes, in particular to a tower crane with a damper, which comprises a foundation base, wherein a standard tower body is fixedly arranged on the foundation base, and the tower crane further comprises: the rotary mechanism is connected with the standard tower body through a sleeve frame, and is further provided with a vibration tester and a damping control system, and the vibration tester is electrically connected with the damping control system; the lifting mechanism is connected with the slewing mechanism and is respectively connected with the vibration tester and the damping control system, wherein the lifting mechanism comprises a tower cap, a control assembly and a lifting assembly; compared with a common crane, the tower crane with the damper has better vibration resistance, smaller amplitude, more stable crane operation and smaller alternating load of structural materials, is beneficial to prolonging the service life of the crane and improving the safety and the working efficiency of the crane.
Description
Technical Field
The invention relates to the technical field of cranes, in particular to a tower crane with a damper.
Background
Tower cranes (towercrane) are called tower cranes for short, and originate from western europe. The rotary crane with movable arm installed on the upper part of high tower body has large operation space and is mainly used for vertical and horizontal transportation of materials in building construction and installation of building components. At present, as buildings are developed towards high-rise and super high-rise, tower cranes are developed towards large-scale and rapid-speed.
However, the trend of large-scale is that the problem of structural rigidity is more outstanding, the rigidity is low, the structural damping is small, the structure of the tower crane is easy to vibrate due to frequent start and stop of three mechanisms and periodical wind load, meanwhile, the swinging of a suspended object is also caused, the mutual influence and the mutual coupling between the vibration of the structure and the swinging of the suspended object are realized, the alternating stress is generated by the tower crane structure, and the alternating stress is the main cause of fatigue damage of the tower crane structure, so that the tower crane with the damper is urgently needed to be developed for overcoming the defects in the current practical application.
Disclosure of Invention
The invention aims to provide a tower crane with a damper, which solves the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the utility model provides a tower crane of area attenuator, includes basic base, fixed mounting has standard tower body on the basic base, still includes:
the rotary mechanism is connected with the standard tower body through a sleeve frame, and is further provided with a vibration tester and a damping control system, and the vibration tester is electrically connected with the damping control system;
the lifting mechanism is connected with the slewing mechanism and is respectively connected with the vibration tester and the damping control system, wherein the lifting mechanism comprises a tower cap, a control assembly and a lifting assembly;
the tower cap is fixedly connected with the slewing mechanism and is respectively connected with the vibration tester and the damping control system, the lifting component is connected with one side of the tower cap, and the control component is connected with the other side of the tower cap and is connected with the lifting component;
the vibration tester realizes the reduction of the vibration amplitude of the standard tower body by controlling the mode that the moving direction of the damping control system is opposite to the vibration direction of the lifting mechanism.
As a further scheme of the invention: the steering assembly includes:
the balance arm is fixedly connected with one side of the tower cap, and an electrical system is arranged on the balance arm;
the two ends of the balance arm pull rod are respectively connected with the balance arm and the tower cap;
and the lifting unit is respectively connected with the balance arm and the lifting component.
As a further scheme of the invention: the lifting unit comprises:
the lifting mechanism is fixedly arranged on the balance arm;
and the weight lifting hook is positioned on the lifting assembly and is connected with the lifting mechanism through a lifting steel wire rope.
As a further scheme of the invention: the lifting assembly includes:
the lifting arm is connected with the slewing mechanism and is also connected with the weight lifting hook;
the crane arm pull rods are multiple in number, and two ends of the multiple crane arm pull rods are respectively connected with the tower caps and the crane arms;
and the adjusting unit is connected with the lifting arm.
As a further scheme of the invention: the adjusting unit includes:
the amplitude variation mechanism is fixedly arranged on the lifting arm;
the luffing trolley is in sliding connection with the lifting arm and is also electrically connected with the luffing mechanism.
As a further scheme of the invention: further comprises: and the cab is fixedly arranged on the slewing mechanism and is electrically connected with the lifting mechanism.
As a further scheme of the invention: the damping control system comprises a damper supporting frame, a control computer, a transverse damping control unit and a longitudinal damping control unit;
the damper supporting frame and the control computer are connected with the slewing mechanism, and the transverse damping control unit and the longitudinal damping control unit are connected with the damper supporting frame;
the control computer is also respectively and electrically connected with the vibration tester, the transverse damping control unit and the longitudinal damping control unit.
As a further scheme of the invention: the transverse damping control unit comprises a transverse damper, a damper transverse motor and a ball screw II;
the horizontal damper and the horizontal motor of the damper are fixedly installed on the damper supporting frame, wherein the horizontal damper is connected with the horizontal motor of the damper through a ball screw in a two-phase mode, and the horizontal motor of the damper is also electrically connected with the control computer.
As a further scheme of the invention: the longitudinal damping control unit comprises a damper longitudinal motor, a longitudinal damper and a ball screw I;
the damper longitudinal motor and the longitudinal damper are fixedly arranged on the damper supporting frame, wherein the damper longitudinal motor is connected with the longitudinal damper through a ball screw, and the damper longitudinal motor is also electrically connected with the control computer.
Compared with the prior art, the invention has the beneficial effects that:
in the process of crane operation, through the tower cap that sets up, control subassembly and lifting subassembly, can carry the lifting object in vertical and horizontal direction, and through the slewing mechanism that sets up, can drive the lifting object and carry out gyration motion, simultaneously, in the process of lifting, through vibration tester and damping control system that sets up, can make the hoist vibration parameter (including vibration direction and vibration amplitude) in the course of operation by vibration tester real-time supervision, and transmit vibration parameter to damping control system in real time, thereby control damping control system's direction of movement and lifting mechanism vibration opposite direction, so that weaken the dissipation with the vibration impact force that strong wind and work load brought, make standard tower body vibration amplitude reduce, thereby improve the shock resistance of hoist, make hoist operation more steady in the course of operation, safe and reliable, and easy operation, under the same operating mode, better anti-vibration performance than ordinary hoist, the amplitude is littleer, hoist operation is steady, and because the vibration condition is littleer than ordinary hoist, so that structural material receives alternating load, structural life is longer, because the better service life is better, the hoist has prolonged, the life is better for the hoist has improved, the life is convenient for the hoist.
Drawings
Fig. 1 is a schematic diagram of the overall structure of a tower crane with a damper according to an embodiment of the present invention.
FIG. 2 is a schematic diagram of a portion of a gyro stabilizer according to an embodiment of the present invention.
In the figure: 1-balance arm, 2-hoisting mechanism, 3-balance arm pull rod, 4-electrical system, 5-tower cap, 6-cab, 7-luffing mechanism, 8-boom pull rod, 9-boom, 10-luffing trolley, 11-weight lifting hook, 12-vibration tester, 13-damping control system, 14-slewing mechanism, 15-rack, 16-standard tower body, 17-foundation base, 18-damper longitudinal motor, 19-longitudinal damper, 20-transverse damper, 21-damper support frame, 22-damper transverse motor, 23-ball screw I, 24-ball screw II.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Specific implementations of the invention are described in detail below in connection with specific embodiments.
Referring to fig. 1 and 2, the tower crane with a damper provided in the embodiment of the invention includes a base 17, a standard tower body 16 is fixedly installed on the base 17, and the tower crane further includes:
the rotary mechanism 14 is connected with the standard tower body 16 through a sleeve frame 15, the rotary mechanism 14 is also provided with a vibration tester 12 and a damping control system 13, and the vibration tester 12 is electrically connected with the damping control system 13;
the lifting mechanism is connected with the slewing mechanism 14 and is respectively connected with the vibration tester 12 and the damping control system 13, wherein the lifting mechanism comprises a tower cap 5, a control assembly and a lifting assembly;
the tower cap 5 is fixedly connected with the slewing mechanism 14 and is respectively connected with the vibration tester 12 and the damping control system 13, the lifting component is connected with one side of the tower cap 5, and the control component is connected with the other side of the tower cap 5 and is connected with the lifting component;
the vibration tester 12 reduces the vibration amplitude of the standard tower body 16 by controlling the mode that the moving direction of the damping control system 13 is opposite to the vibration direction of the lifting mechanism.
In the working process of the crane, the lifting object can be conveyed in the vertical and horizontal directions through the arranged tower cap 5, the control component and the lifting component, and can be driven to perform rotary motion through the arranged rotary mechanism 14, wherein the rotary mechanism 14 comprises a driving motor, an upper support, a lower support and a rotary support, the lower support is connected with a standard tower body through bolts, the rotary support is a transition mechanism of the upper support and the lower support, the rotary support is driven by the driving motor, the tower body can not rotate and bear partial load on the tower body, the upper support is connected with the tower body through bolts and the transition joint of the tower body, so that excessive description is not needed, meanwhile, in the lifting process, vibration parameters (including vibration direction and vibration amplitude) of the crane in the working process can be monitored in real time by the vibration measuring instrument 12 through the vibration measuring instrument 12, and the vibration parameters are transmitted to the damping control system 13 in real time, so that the moving direction of the damping control system 13 is controlled to be opposite to the vibration direction of the lifting mechanism, so that the vibration impact force caused by strong wind and working load is weakened and dissipated, the vibration amplitude of the standard tower body 16 is reduced, the vibration resistance of the crane is improved, the crane operates more stably, more safely and reliably in the working process, the operation is simple, the crane has better vibration resistance than the common crane under the same working condition, the amplitude is smaller, the crane operates more stably, the alternating load born by structural materials is smaller due to the smaller vibration condition than the common crane, the structural life is longer, the working capacity of the crane is stronger due to the better vibration resistance, the service life of the crane is prolonged, the safety and the working efficiency of the crane are improved, and convenience is provided for workers.
In one embodiment of the present invention, referring to fig. 1 and 2, the manipulation assembly includes:
the balance arm 1 is fixedly connected with one side of the tower cap 5, and an electrical system 4 is arranged on the balance arm 1, wherein the electrical system 4 mainly comprises components such as a control computer, a PLC (programmable logic controller) for controlling a damper motor, a motor control relay and the like, and the components can be integrated in a power distribution cabinet;
the two ends of the balance arm pull rod 3 are respectively connected with the balance arm 1 and the tower cap 5;
and the lifting unit is respectively connected with the balance arm 1 and the lifting component.
The lifting unit comprises:
the lifting mechanism 2 is fixedly arranged on the balance arm 1;
and the weight lifting hook 11 is positioned on the lifting assembly, and is connected with the lifting mechanism 2 through a lifting steel wire rope.
Referring to fig. 1 and 2, the lifting assembly includes:
a boom 9, the boom 9 being connected to the swing mechanism 14, and the boom 9 being further connected to the weight hook 11;
the number of the lifting arm pull rods 8 is multiple, and two ends of the lifting arm pull rods 8 are respectively connected with the tower cap 5 and the lifting arm 9;
and an adjusting unit connected with the boom 9.
The adjusting unit includes:
the amplitude changing mechanism 7 is fixedly arranged on the lifting arm 9;
the luffing trolley 10 is in sliding connection with the lifting arm 9, and the luffing trolley 10 is also electrically connected with the luffing mechanism 7.
Referring to fig. 1, the method further includes: and the cab 6 is fixedly arranged on the slewing mechanism 14 and is electrically connected with the lifting mechanism.
In the working process of the crane, a standard tower body 16 is arranged on a reinforced concrete foundation base 17 through foundation bolts, a sleeve frame 15 is connected on the standard tower body 16 through bolts, a rotary mechanism 14 is arranged at the top of the standard tower body 16 through bolts, a cab 6 and a damping control system 13 are arranged on a workbench of the rotary mechanism 14, a tower cap 5 and a transition joint are arranged at the top of the rotary mechanism 14, a balance arm 1 is connected on the left end face of a tower cap 5 through a connecting pin, a lifting arm 9 is connected on the right end face of the tower cap 5 through a connecting pin, a connecting pulling plate arranged at the top of the tower cap 5 is respectively connected with the balance arm 1 and the lifting arm 9 through a balance arm pulling rod 3 and a lifting arm pulling rod 8, an amplitude changing trolley 10 is arranged on a track plane of the lifting arm 9, the amplitude changing trolley 10 is connected with a weight lifting hook 11 through a pulley block and a lifting steel wire rope, the lifting wire rope is connected to a lifting mechanism 2 arranged on the balance arm 1, and finally lifting the hoisted object through the lifting mechanism 2, wherein the lifting mechanism 2 mainly comprises a lifting steel wire rope, a lifting winding drum, a lifting motor and a lifting hook, the lifting hook is hung on a pulley block fixed on a luffing trolley through the steel wire rope, the lifting winding drum and the lifting motor are arranged on a lifting arm, the lifting motor drives the lifting winding drum to rotate so as to drive the lifting steel wire rope to retract and release, the lifting hook is driven by the lifting steel wire rope to realize lifting action, the luffing trolley 10 is driven by the power provided by the luffing mechanism 7 arranged on the lifting arm 9 so as to realize luffing motion of the hoisted object (namely, the luffing trolley 10 can do linear motion on a track of the lifting arm 9 to realize luffing), the luffing mechanism 7 comprises the luffing trolley, a traction steel wire rope, the luffing winding drum, the luffing motor and the like, the traction steel wire rope is respectively connected with the luffing trolley and the luffing reel, the luffing reel is driven by the luffing motor to rotate, so that the winding and unwinding of the traction steel wire rope are realized, the luffing trolley is driven to move on the brown rod rail under the crane boom to realize luffing motion, and the rotation of the hoisted object is realized through the rotation motion of the rotation mechanism 14, so that the purposes of vertical and horizontal conveying of materials and installation of building components are achieved.
In one embodiment of the present invention, referring to fig. 1 and 2, the damping control system 13 includes a damper support 21, a control computer, a lateral damping control unit, and a longitudinal damping control unit;
the damper supporting frame 21 and the control computer are connected with the slewing mechanism 14, and the transverse damping control unit and the longitudinal damping control unit are connected with the damper supporting frame 21;
the control computer is also electrically connected with the vibration tester 12, the transverse damping control unit and the longitudinal damping control unit, respectively.
The transverse damping control unit comprises a transverse damper 20, a damper transverse motor 22 and a ball screw II 24;
the transverse damper 20 and the damper transverse motor 22 are fixedly mounted on the damper supporting frame 21, wherein the transverse damper 20 is connected with the damper transverse motor 22 through a ball screw two 24, and the damper transverse motor 22 is electrically connected with the control motor.
The longitudinal damping control unit comprises a damper longitudinal motor 18, a longitudinal damper 19 and a ball screw one 23;
the damper longitudinal motor 18 and the damper 19 are fixedly mounted on the damper supporting frame 21, wherein the damper longitudinal motor 18 is connected with the damper 19 through a ball screw one 23, and the damper longitudinal motor 18 is also electrically connected with the control computer.
The damping control system 13 and the vibration tester 12 are arranged on the slewing mechanism 14 through bolts, vibration parameters (vibration direction and vibration amplitude) of the crane in the working process are monitored in real time by the vibration tester 12, the vibration parameters are transmitted to the control computer in real time, the control calculation is performed by calculating and analyzing the vibration parameters, finally, a control command is formed to control the damper longitudinal motor 18 or the damper transverse motor 22 to act, and further, the longitudinal damper 19 and the transverse damper 20 which are arranged on the first ball screw 23 or the second ball screw 24 on the damper support frame 21 are driven to transversely or longitudinally move, so that the movement direction of the longitudinal damper 19 or the transverse damper 20 is opposite to the vibration direction of the crane, and the vibration impact force caused by strong wind and working load can be weakened and dissipated, the vibration amplitude of the tower body is reduced, the shock resistance of the crane is improved, and the crane is enabled to run more stably in the working process, and is safer and more reliable.
It should be noted that, in the present invention, unless explicitly specified and defined otherwise, terms such as "sliding", "rotating", "fixing", "provided" and the like should be interpreted broadly, and may be, for example, welded, bolted, or integrated; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (9)
1. The utility model provides a take tower crane of attenuator, includes basic base, fixed mounting has standard tower body on the basic base, its characterized in that still includes:
the rotary mechanism is connected with the standard tower body through a sleeve frame, and is further provided with a vibration tester and a damping control system, and the vibration tester is electrically connected with the damping control system;
the lifting mechanism is connected with the slewing mechanism and is respectively connected with the vibration tester and the damping control system, wherein the lifting mechanism comprises a tower cap, a control assembly and a lifting assembly;
the tower cap is fixedly connected with the slewing mechanism and is respectively connected with the vibration tester and the damping control system, the lifting component is connected with one side of the tower cap, and the control component is connected with the other side of the tower cap and is connected with the lifting component;
the vibration tester realizes the reduction of the vibration amplitude of the standard tower body by controlling the mode that the moving direction of the damping control system is opposite to the vibration direction of the lifting mechanism.
2. The damped tower crane of claim 1, wherein said handling assembly comprises:
the balance arm is fixedly connected with one side of the tower cap, and an electrical system is arranged on the balance arm;
the two ends of the balance arm pull rod are respectively connected with the balance arm and the tower cap;
and the lifting unit is respectively connected with the balance arm and the lifting component.
3. The damped tower crane of claim 2, wherein said lifting unit comprises:
the lifting mechanism is fixedly arranged on the balance arm;
and the weight lifting hook is positioned on the lifting assembly and is connected with the lifting mechanism through a lifting steel wire rope.
4. A damped tower crane according to claim 3, wherein said lifting assembly comprises:
the lifting arm is connected with the slewing mechanism and is also connected with the weight lifting hook;
the crane arm pull rods are multiple in number, and two ends of the multiple crane arm pull rods are respectively connected with the tower caps and the crane arms;
and the adjusting unit is connected with the lifting arm.
5. The damped tower crane according to claim 4, wherein said adjusting unit comprises:
the amplitude variation mechanism is fixedly arranged on the lifting arm;
the luffing trolley is in sliding connection with the lifting arm and is also electrically connected with the luffing mechanism.
6. The damped tower crane according to any one of claims 1-5, further comprising: and the cab is fixedly arranged on the slewing mechanism and is electrically connected with the lifting mechanism.
7. The tower crane with damper according to claim 1 or 4, wherein the damping control system comprises a damper support frame, a control computer, a transverse damping control unit and a longitudinal damping control unit;
the damper supporting frame and the control computer are connected with the slewing mechanism, and the transverse damping control unit and the longitudinal damping control unit are connected with the damper supporting frame;
the control computer is also respectively and electrically connected with the vibration tester, the transverse damping control unit and the longitudinal damping control unit.
8. The damped tower crane of claim 7, wherein said transverse damping control unit comprises a transverse damper, a damper transverse motor and a ball screw two;
the horizontal damper and the horizontal motor of the damper are fixedly installed on the damper supporting frame, wherein the horizontal damper is connected with the horizontal motor of the damper through a ball screw in a two-phase mode, and the horizontal motor of the damper is also electrically connected with the control computer.
9. The damped tower crane of claim 8, wherein said longitudinal damping control unit comprises a damper longitudinal motor, a longitudinal damper and a ball screw one;
the damper longitudinal motor and the longitudinal damper are fixedly arranged on the damper supporting frame, wherein the damper longitudinal motor is connected with the longitudinal damper through a ball screw, and the damper longitudinal motor is also electrically connected with the control computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311797136.5A CN117720019A (en) | 2023-12-26 | 2023-12-26 | Tower crane with damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311797136.5A CN117720019A (en) | 2023-12-26 | 2023-12-26 | Tower crane with damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117720019A true CN117720019A (en) | 2024-03-19 |
Family
ID=90199725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311797136.5A Pending CN117720019A (en) | 2023-12-26 | 2023-12-26 | Tower crane with damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117720019A (en) |
-
2023
- 2023-12-26 CN CN202311797136.5A patent/CN117720019A/en active Pending
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