CN116354254A - Disassembling method and disassembling device for movable counterweight - Google Patents
Disassembling method and disassembling device for movable counterweight Download PDFInfo
- Publication number
- CN116354254A CN116354254A CN202310350758.7A CN202310350758A CN116354254A CN 116354254 A CN116354254 A CN 116354254A CN 202310350758 A CN202310350758 A CN 202310350758A CN 116354254 A CN116354254 A CN 116354254A
- Authority
- CN
- China
- Prior art keywords
- pulley
- cross beam
- shaped steel
- steel plate
- counterweight
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 9
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 37
- 239000010959 steel Substances 0.000 claims abstract description 37
- 230000007246 mechanism Effects 0.000 claims abstract description 12
- 230000000712 assembly Effects 0.000 claims description 10
- 238000000429 assembly Methods 0.000 claims description 10
- 125000006850 spacer group Chemical group 0.000 claims description 3
- 230000006872 improvement Effects 0.000 description 13
- 238000003466 welding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- 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
- B66C23/72—Counterweights or supports for balancing lifting couples
- B66C23/74—Counterweights or supports for balancing lifting couples separate from jib
- B66C23/76—Counterweights or supports for balancing lifting couples separate from jib and movable to take account of variations of load or of variations of length of jib
-
- 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
- B66C23/88—Safety gear
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Abstract
The invention discloses a disassembly method and a disassembly device for a mobile counterweight, wherein the disassembly method and the disassembly device comprise a cross beam, a pulley bracket, a guide pulley, a C-shaped steel plate assembly, a pulley fixing plate and a plurality of pulleys; the beam is provided with the pulley bracket, the pulley bracket is provided with the guide pulley, both sides of the beam are provided with C-shaped steel plate components, and the C-shaped steel plate components are provided with the pulleys; the bottom of the beam is provided with a pulley fixing plate, the pulley fixing plate is provided with a pulley, and the pulley bottom of the pulley fixing plate is connected with a lifting hook pulley block through a steel wire rope. The dismounting device can adjust the running direction of the steel wire rope, is connected with the movable balancing weight through the lifting hook pulley block, and realizes the dismounting and mounting work of the movable balancing weight by running the balancing weight lifting mechanism.
Description
Technical Field
The invention relates to a disassembly method and a disassembly device for a movable counterweight, and belongs to the technical field of tower cranes.
Background
The ultra-large type tower crane is required to meet various working conditions, a movable counterweight is required to be arranged, when the tower crane moves or performs jacking operation, safety risks exist because of the large weight on the upper portion, the movable counterweight is required to be detached to a tower crane underframe, and because the counterweight arm is in an inverted triangle structure, the counterweight lifting mechanism is positioned in the middle of the counterweight arm and interferes with the lower chord member if the counterweight lifting mechanism is directly used for lifting the counterweight.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a disassembly method and a disassembly device for a movable counterweight, which solve the problem of interference between a steel wire rope and a boom lower chord and ensure normal disassembly of the movable counterweight.
In order to achieve the above purpose, the dismounting device for the movable counterweight comprises a cross beam, a pulley bracket, a guide pulley, a C-shaped steel plate assembly, a pulley fixing plate and a plurality of pulleys;
the beam is provided with the pulley bracket, the pulley bracket is provided with the guide pulley, both sides of the beam are provided with C-shaped steel plate components, and the C-shaped steel plate components are provided with the pulleys;
the bottom of the beam is provided with a pulley fixing plate, the pulley fixing plate is provided with a pulley, and the pulley bottom of the pulley fixing plate is connected with a lifting hook pulley block through a steel wire rope.
As an improvement, the cross beam is a box body formed by welding steel plates.
As an improvement, the pulley bracket, the C-shaped steel plate assembly and the pulley fixing plate are welded on the cross beam.
As an improvement, three groups of C-shaped steel plate assemblies are welded on two sides of the cross beam, and one group of pulleys are installed in each group of C-shaped steel plate assemblies.
As an improvement, four groups of pulley fixing plates are welded at the bottom of the cross beam, and two groups of pulleys are arranged in every two groups of pulley fixing plates.
As an improvement, the pulleys are respectively separated by a spacer bush.
As an improvement, an ear plate is arranged on one side of the cross beam, and the ear plate is connected with the torsion preventing device through a pin shaft.
As an improvement, two lug plates are welded on one side of the cross beam.
As an improvement, the guide pulley is arranged on the pulley bracket by a pulley shaft, and the pulley is respectively arranged on the C-shaped steel plate component and the pulley fixing plate by the pulley shaft.
In addition, the invention also provides a disassembly method of the movable counterweight, which adopts the disassembly device and comprises the following specific steps:
connecting the lifting hook pulley block with the movable counterweight;
lifting the balancing weight, moving the balancing weight trolley to separate the balancing weight from the trolley, and controlling the lifting mechanism to descend at the moment;
when the counterweight descends to a designated position, a traction mechanism is adopted to draw the counterweight to a position close to the standard section;
and finally, finishing the disassembly work of the balancing weight.
Compared with the prior art, the invention has the beneficial effects that:
1) The dismounting device changes the rope traveling direction of the steel wire rope, so that the lifting hook pulley block is directly connected with the balancing weight, and the dismounting requirement of the balancing weight is met.
2) The self-dismounting of the balancing weight of the tower crane can be realized through the dismounting device.
3) When the tower crane walks or lifts, the safety of the whole machine is ensured by disassembling the balancing weight.
Drawings
FIG. 1 is a schematic diagram of a main structure of a disassembling device according to the present invention;
FIG. 2 is a schematic view of a hook block according to the present invention;
FIG. 3 is a roping schematic view of a dismounting device according to the invention;
FIG. 4 is a schematic view of the present invention disassembled;
in the figure: 1. the pulley comprises a cross beam, a pulley support, a guide pulley, a C-shaped steel plate assembly, a pulley fixing plate, a pulley shaft I, a pulley shaft 8, an ear plate, a torsion preventing device, a pin shaft, a lifting hook pulley block, a pulley shaft II and a pulley shaft I.
Detailed Description
The present invention will be described in further detail below in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the detailed description and specific examples, while indicating the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the terms used herein in this description of the invention are for the purpose of describing particular embodiments only and are not intended to be limiting of the invention.
As shown in fig. 1, 2 and 3, a dismounting device for moving a counterweight comprises a cross beam 1, a pulley bracket 2, a guide pulley 3, a C-shaped steel plate assembly 4, a pulley fixing plate 6 and a plurality of pulleys 5;
the beam 1 is provided with the pulley bracket 2, the pulley bracket 2 is provided with the guide pulley 3, both sides of the beam 1 are provided with the C-shaped steel plate assemblies 4, and the C-shaped steel plate assemblies 4 are provided with the pulleys 5;
the bottom of the beam 1 is provided with a pulley fixing plate 6, the pulley fixing plate 6 is provided with a pulley 5, and the bottom of the pulley 5 on the pulley fixing plate 6 is connected with a lifting hook pulley block 11 through a steel wire rope.
As an improvement of the embodiment, the cross beam 1 is a box body formed by welding steel plates, and the pulley support 2, the C-shaped steel plate component 4 and the pulley fixing plate 6 are welded on the cross beam 1, so that the structural stability is high.
As an improvement of the embodiment, three groups of C-shaped steel plate assemblies 4 are welded on two sides of the beam 1, one group of pulleys 5 are installed in each group of C-shaped steel plate assemblies 4, four groups of pulley fixing plates 6 are welded on the bottom of the beam 1, two groups of pulleys 5 are installed in each two groups of pulley fixing plates 6, and the winding mode of the steel wire rope is changed by means of the pulleys 5, as shown in fig. 3, so that the movable counterweight is connected through a lifting hook pulley block 11.
As an improvement of the embodiment, the pulleys 5 are respectively separated by a spacer sleeve, so that the pulleys 5 can work normally.
As an improvement of the embodiment, two lug plates 8 are welded on one side of the cross beam 1, and the lug plates 8 are connected with a torsion preventing device 9 through a pin shaft 10.
As an improvement of the embodiment, the guide pulley 3 is mounted on the pulley bracket 2 by a pulley shaft II12, and the pulley 5 is respectively mounted on the C-shaped steel plate assembly 4 by the pulley shaft II12 and the pulley fixing plate 6 by a pulley shaft I7.
In addition, as shown in fig. 4 (a) to 4 (c), the invention also provides a disassembly method of the movable counterweight, which adopts the disassembly device and comprises the following specific steps:
connecting the lifting hook pulley block 11 with a movable counterweight;
lifting the balancing weight, moving the balancing weight trolley to change amplitude towards the tail part of the balancing arm, so that the balancing weight is separated from the trolley, and controlling the lifting mechanism to descend at the moment;
when the counterweight descends to a designated position, a traction mechanism is adopted to draw the counterweight to a position close to the standard section;
and finally, finishing the disassembly work of the balancing weight.
The dismounting device can adjust the running direction of the steel wire rope, is connected with the movable balancing weight through the lifting hook pulley block, and realizes the dismounting and mounting work of the movable balancing weight by running the balancing weight lifting mechanism. In addition, in order to ensure that the movable balancing weight is detached from the fixed position, a traction mechanism can be arranged at the standard joint, and the balancing weight is pulled to a position close to the standard joint through the traction mechanism, so that the balancing weight is placed at the fixed position.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, or alternatives falling within the spirit and principles of the invention.
Claims (10)
1. The dismounting device for the movable counterweight is characterized by comprising a cross beam (1), a pulley bracket (2), a guide pulley (3), a C-shaped steel plate assembly (4), a pulley fixing plate (6) and a plurality of pulleys (5);
the pulley support (2) is arranged on the cross beam (1), the guide pulleys (3) are arranged on the pulley support (2), C-shaped steel plate assemblies (4) are arranged on two sides of the cross beam (1), and pulleys (5) are arranged on the C-shaped steel plate assemblies (4);
the bottom of the beam (1) is provided with a pulley fixing plate (6), the pulley fixing plate (6) is provided with a pulley (5), and the bottom of the pulley (5) on the pulley fixing plate (6) is connected with a lifting hook pulley block (11) through a steel wire rope.
2. The dismounting device for a mobile counterweight according to claim 1, characterized in that the cross beam (1) is a box of welded steel plate.
3. Dismounting device for moving counterweights according to claim 1 or 2, characterized in that the pulley bracket (2), the C-shaped steel plate assembly (4) and the pulley fixing plate (6) are welded to the cross beam (1).
4. A removal device for a mobile counterweight according to claim 3, characterized in that three groups of C-shaped steel plate assemblies (4) are welded on both sides of the cross beam (1), one group of pulleys (5) being mounted in each group of C-shaped steel plate assemblies (4).
5. A removal device for a mobile counterweight according to claim 3, characterized in that the bottom of the cross beam (1) is welded with four sets of pulley fixing plates (6), two sets of pulleys (5) being mounted in each two sets of pulley fixing plates (6).
6. A removal device for moving balancing weights according to claim 1, characterized in that the pulleys (5) are separated by a spacer.
7. Disassembly device for moving balancing weights according to claim 1, characterized in that an ear plate (8) is mounted on one side of the cross beam (1), which ear plate (8) is connected to the anti-torsion device (9) by means of a pin (10).
8. Dismounting device for moving counterweights according to claim 7, characterized in that two ear plates (8) are welded to one side of the cross beam (1).
9. The dismounting device for the movable counterweight according to claim 1, wherein the guide pulley (3) is mounted on the pulley bracket (2) by a pulley shaft, and the pulley (5) is mounted on the C-shaped steel plate assembly (4) and the pulley fixing plate (6) by a pulley shaft respectively.
10. A method for removing a moving counterweight, characterized by using a removing device according to any one of claims 1-9, comprising the steps of:
connecting the lifting hook pulley block (11) with the movable counterweight;
lifting the balancing weight, moving the balancing weight trolley to separate the balancing weight from the trolley, and controlling the lifting mechanism to descend at the moment;
when the counterweight descends to a designated position, a traction mechanism is adopted to draw the counterweight to a position close to the standard section;
and finally, finishing the disassembly work of the balancing weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310350758.7A CN116354254A (en) | 2023-04-04 | 2023-04-04 | Disassembling method and disassembling device for movable counterweight |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310350758.7A CN116354254A (en) | 2023-04-04 | 2023-04-04 | Disassembling method and disassembling device for movable counterweight |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116354254A true CN116354254A (en) | 2023-06-30 |
Family
ID=86936993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310350758.7A Pending CN116354254A (en) | 2023-04-04 | 2023-04-04 | Disassembling method and disassembling device for movable counterweight |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116354254A (en) |
-
2023
- 2023-04-04 CN CN202310350758.7A patent/CN116354254A/en active Pending
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