CN220926114U - Main hoisting device for tower crane - Google Patents
Main hoisting device for tower crane Download PDFInfo
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- CN220926114U CN220926114U CN202322728917.0U CN202322728917U CN220926114U CN 220926114 U CN220926114 U CN 220926114U CN 202322728917 U CN202322728917 U CN 202322728917U CN 220926114 U CN220926114 U CN 220926114U
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- wire rope
- hoisting device
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- 239000000725 suspension Substances 0.000 claims abstract description 23
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 14
- 239000010959 steel Substances 0.000 claims abstract description 14
- 238000009434 installation Methods 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 230000008602 contraction Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
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Abstract
The utility model provides a main hoisting device for a tower crane, which comprises a main crane arranged on a cabin, wherein the main crane comprises a main base arranged on the cabin, a main suspension arm connected with the main base, a hydraulic cylinder for connecting the main base and the main suspension arm, a lifting hook, a steel wire rope, a pulley block and a power unit; the main base comprises a fixed seat, a rotating seat and an adjusting seat which are sequentially arranged from bottom to top; the main suspension arm comprises a first end and a second end, the first end is movably connected with the adjusting seat, the hydraulic cylinder can drive the main suspension arm to rotate when the hydraulic cylinder stretches out and draws back, and the second end is connected with the lifting hook; one end of the wire rope is connected with the lifting hook, the other end of the wire rope is connected with the main suspension arm and connected to the power unit by bypassing the pulley block, and the power unit is suitable for tensioning or releasing the wire rope to lift or put down the lifting hook. The main hoisting device for the tower crane provided by the utility model can finish hoisting heavier components without using large hoisting equipment, and has the advantages of low hoisting cost and small occupied area.
Description
Technical Field
The utility model belongs to the technical field of wind power generation, and particularly relates to a main hoisting device for a tower crane.
Background
The blade of the wind driven generator needs to be replaced, but the blade is heavy, the height of the tower barrel is higher, at present, a large-sized automobile crane is adopted for replacing the blade of a general wind driven generator set, a crawler crane is adopted for replacing the blade of a high-megawatt tower fan, and a landing leg ship is required for replacing the blade of the offshore wind driven generator. The use of large hoisting equipment not only generates high hoisting cost, but also is subject to environmental conditions.
A hoisting system of a crane on a tower of a wind generating set is proposed at present, however, the existing main hoisting device cannot be integrally hoisted to the top of a cabin.
Accordingly, there is a need for an auxiliary lifting device for a tower crane that solves the above-mentioned problems.
Disclosure of utility model
The utility model provides a tower crane for a wind generating set, which can finish hoisting heavy parts, particularly blades, under the condition of not using large hoisting equipment, has the advantages of low hoisting cost, small occupied area, little greening damage, high response speed and the like, and is particularly suitable for high tower fans, offshore fans and fans in remote areas where large cranes are scarce.
In order to achieve the above purpose, the present utility model provides the following technical solutions.
A main hoisting device for a tower crane, the main hoisting device comprising a main crane mounted on the nacelle, the main crane comprising a main base mounted on the nacelle, a main boom connected with the main base, a hydraulic cylinder connecting the main base and the main boom, a lifting hook, a wire rope, a pulley block and a power unit; the main base comprises a fixed seat, a rotating seat and an adjusting seat which are sequentially arranged from bottom to top, and the rotating seat is suitable for driving the adjusting seat to rotate relative to the fixed seat; the main suspension arm comprises a first end and a second end, the first end is movably connected with the adjusting seat, the hydraulic cylinder can drive the main suspension arm to rotate when being telescopic, and the second end is connected with the lifting hook; one end of the steel wire rope is connected with the lifting hook, the other end of the steel wire rope is connected with the main suspension arm and connected to the power unit by bypassing the pulley block, and the power unit is suitable for tensioning or releasing the steel wire rope to lift or put down the lifting hook.
Preferably, a rotating bearing is arranged at the bottom of the rotating seat, the rotating bearing is connected with the fixing seat, the rotating seat is provided with a rotating motor, and the rotating seat can drive the adjusting seat to rotate relative to the fixing seat along the rotating bearing under the driving of the rotating motor.
Preferably, the adjusting seat is provided with a sliding groove, a pin shaft is arranged at a first end of the main boom, the pin shaft is inserted into the sliding groove, the tail end of the hydraulic cylinder is in pin joint with the main base, a telescopic end of the hydraulic cylinder is in pin joint with the middle part of the main boom, and when the hydraulic cylinder stretches, the main boom can move along the sliding groove and/or rotate relative to the adjusting seat.
Preferably, the adjusting seat is provided with a locking mechanism, and the locking mechanism is arranged at the sliding groove to block the pin shaft from moving along the sliding groove, so that the movement of the main boom along the sliding groove is limited.
Preferably, the pulley block comprises a plurality of pulleys arranged on the main boom and the main base and used for adjusting the trend of the steel wire rope.
Preferably, the second end of the main boom is provided with a main boom pulley, the lifting hook is provided with a lifting hook pulley, a plurality of first sliding grooves are formed in the outer wall of the main boom pulley along the circumferential direction, the lifting hook pulley is provided with a second sliding groove matched with the first sliding groove, one end of the steel wire rope is fixed to the lifting hook pulley, the other end of the steel wire rope is sequentially wound around the lifting hook pulley and the main boom pulley along the second sliding groove and the first sliding groove, and the steel wire rope penetrates through the pulley block and then is connected with the power unit.
Preferably, a first fixing lug is arranged at the bottom of the fixing seat, a first fixing hole is formed in the first fixing lug, a main crane installation seat is arranged in the engine room, a second fixing lug is arranged at the top of the main crane installation seat corresponding to the first fixing lug, a second fixing hole is formed in the second fixing lug, and the fixing seat and the main crane installation seat are fixed through bolts penetrating through the first fixing hole and the second fixing hole.
Preferably, the power unit is fixed to the bottom of the tower.
Preferably, the power unit comprises a hoist or winch.
Compared with the prior art, the technical scheme of the embodiment of the utility model has the beneficial effects.
The main hoisting device for the tower crane provided by the utility model can finish hoisting heavier parts, particularly blades, under the condition of not using large hoisting equipment, and has the advantages of low hoisting cost and small occupied area;
Further, the operation angle of the main suspension arm is adjusted by arranging a rotating seat which is connected with the fixed seat and the adjusting seat; the main suspension arm is movably connected with the adjusting seat, the rotation of the main suspension arm is realized through the extension and contraction of the hydraulic cylinder connected with the main base and the main suspension arm, the operation radius of the main suspension arm is adjusted, the use is more flexible, and the operation efficiency is improved;
Further, by arranging the sliding groove on the adjusting seat, the connection position of the main boom and the adjusting seat is adjusted, the working radius of the main boom is expanded, and the working range is enlarged.
Drawings
FIG. 1 is a schematic view of a main hoisting device for a tower crane in a wind turbine generator system according to an embodiment of the present utility model;
FIG. 2 is a schematic view of a main hoisting apparatus for a tower crane according to an embodiment of the utility model;
FIG. 3 is an elevation view of a main hoist for a tower crane in accordance with an embodiment of the present utility model;
FIG. 4 is a schematic view of a main boom rotation angle adjustment of a main boom apparatus for a tower crane in an embodiment of the utility model;
fig. 5 is a schematic view of the main boom position and rotation angle adjustment of a main boom arrangement for a tower crane according to an embodiment of the utility model.
Reference numerals illustrate:
1. a tower; 2. a nacelle; 3. a main crane;
21. a main crane mounting base; 211. a second fixed ear;
31. A main base; 311. a fixing seat; 3111. a first fixed ear; 312. a rotating seat; 3121. a rotating bearing; 3122. a rotating electric machine; 313. an adjusting seat; 3131. a slip groove; 3132. a locking mechanism;
32. A main boom; 321. a first end; 322. a second end; 323. a pin shaft; 324. a main boom pulley;
33. a hydraulic cylinder;
34. A lifting hook; 341. a hook pulley;
35. A wire rope;
36. Pulley block; 361. and (3) a pulley.
Detailed Description
In order to make the objects, features and advantageous effects of the present utility model more comprehensible, embodiments accompanied with figures are described in detail below. It is to be understood that the following detailed description is merely illustrative of the utility model, and not restrictive of the utility model. Moreover, the use of the same, similar reference numbers in the figures may indicate the same, similar elements in different embodiments, and descriptions of the same, similar elements in different embodiments, as well as descriptions of prior art elements, features, effects, etc. may be omitted.
Referring to fig. 1 to 5, the embodiment of the utility model provides a main hoisting device for a tower crane, which can finish hoisting of heavy parts without using large hoisting equipment and has the advantages of low hoisting cost and small occupied area.
Specifically, the wind generating set comprises a tower 1 fixed on the ground and a nacelle 2 mounted on the top of the tower 1, the tower crane comprises a main crane 3 mounted on the nacelle 2, the main crane comprises a main base 31 mounted on the nacelle 2, a main boom 32 connected with the main base 31, a hydraulic cylinder 33 connecting the main base 31 and the main boom 32, a lifting hook 34, a wire rope 35, a pulley block 36 and a power unit; the main base 31 comprises a fixed seat 311, a rotating seat 312 and an adjusting seat 313 which are sequentially arranged from bottom to top, wherein the rotating seat 312 is suitable for driving the adjusting seat 313 to rotate relative to the fixed seat 311; the main boom 32 comprises a first end 321 and a second end 322, the first end 321 is movably connected with the adjusting seat 313, the hydraulic cylinder 33 can drive the main boom 32 to rotate when being extended and retracted, and the second end 322 is connected with the lifting hook 34; one end of the wire rope 35 is connected to the lifting hook 34 and the other end is connected to the main boom 32 and connected to a power unit around the pulley block 36, which is adapted to tighten or release the wire rope 35 to lift or lower the lifting hook 34 for lifting an item on the lifting hook 34.
In a specific implementation, a rotating bearing 3121 is disposed at the bottom of the rotating base 312, the rotating bearing 3121 is connected to the fixed base 311, the rotating base 312 is provided with a rotating motor 3122, and the rotating base 312 can drive the adjusting base 313 to rotate relative to the fixed base 311 along the rotating bearing 3121 under the driving of the rotating motor 3122, so as to adjust the working angle of the main boom 32.
In a specific implementation, the adjusting seat 313 is provided with a sliding groove 3131, the first end 321 of the main boom 32 is provided with a pin 323, the pin 323 is inserted into the sliding groove 3131, the tail end of the hydraulic cylinder 33 is in pin connection with the fixed seat 311 or the rotating seat 312 of the main base 31, the telescopic end of the hydraulic cylinder 33 is in pin connection with the middle part of the main boom 32, and when the hydraulic cylinder 33 stretches and contracts, the main boom 32 can move along the sliding groove 3131 and/or rotate relative to the adjusting seat 313. The main boom 32 rotates relative to the adjusting seat 313 to adjust the working radius of the main boom 32, and the main boom 32 moves along the sliding groove 3131 to adjust the connection position of the main boom 32 and the adjusting seat 313, so as to expand the working radius of the main boom 32 and increase the working range.
In a specific implementation, the adjusting seat 313 is provided with a locking mechanism 3132, and the locking mechanism 3132 is disposed at the sliding groove 3131 to block the pin 323 from moving along the sliding groove 3131, thereby limiting the movement of the main boom 32 along the sliding groove 3131.
In particular, the pulley block 36 comprises a plurality of pulleys 361 arranged on the main boom 32 and the main base 31 for adjusting the trend of the wire rope 35. To guide the wire rope 35 to the ground, avoiding interference, to ensure sufficient space for installing a large power unit. The number and the installation position of the pulleys 361 of the pulley block 36 can be adjusted by a person skilled in the art according to the shapes of the main boom 32 and the main base 31, so as to achieve the purpose of avoiding interference of the adjusting wire rope 35, and the details are not repeated here.
In a specific implementation, the second end 322 of the main boom 32 is provided with a main boom pulley 324, the lifting hook 34 is provided with a lifting hook pulley 341, the outer wall of the main boom pulley 324 is provided with a plurality of first sliding grooves along the circumferential direction, the lifting hook pulley 341 is provided with a second sliding groove matched with the first sliding groove, one end of the wire rope 35 is fixed on the lifting hook pulley 341, the other end sequentially winds the lifting hook pulley 341 and the main boom pulley 324 along the second sliding groove and the first sliding groove, and the wire rope is connected with a power unit after penetrating through the pulley block 36.
In a specific implementation, a first fixing lug 3111 is provided at the bottom of the fixing seat 311, a first fixing hole is provided on the first fixing lug 3111, a main crane mounting seat 21 is provided in the nacelle 2, a second fixing lug 211 is provided at the top of the main crane mounting seat 21 corresponding to the first fixing lug 3111, a second fixing hole is provided on the second fixing lug 211, and the fixing seat 311 and the main crane mounting seat 21 are fixed by penetrating through the first fixing hole and the second fixing hole.
In a specific implementation, the power unit is fixedly mounted at the bottom of the tower 1.
In a specific implementation, the power unit is a winch or a winch.
In summary, the main hoisting device for the tower crane provided by the utility model can finish hoisting heavier components, particularly blades, under the condition of not using large hoisting equipment, and has the advantages of low hoisting cost and small occupied area;
Further, the operation angle of the main suspension arm is adjusted by arranging a rotating seat which is connected with the fixed seat and the adjusting seat; the main suspension arm is movably connected with the adjusting seat, the rotation of the main suspension arm is realized through the extension and contraction of the hydraulic cylinder connected with the main base and the main suspension arm, the operation radius of the main suspension arm is adjusted, the use is more flexible, and the operation efficiency is improved;
Further, by arranging the sliding groove on the adjusting seat, the connection position of the main boom and the adjusting seat is adjusted, the working radius of the main boom is expanded, and the working range is enlarged.
Although specific embodiments have been described above, these embodiments are not intended to limit the scope of the disclosure, even where only a single embodiment is described with respect to a particular feature. The characteristic examples provided in the present disclosure are intended to be illustrative, not limiting, unless stated differently. In practice, the features of one or more of the dependent claims may be combined with the features of the independent claims where technically possible, according to the actual needs, and from the features of the respective independent claims in any appropriate manner, not only by the specific combinations enumerated in the claims.
Claims (9)
1. The main hoisting device for the tower crane is characterized by comprising a main crane arranged on a cabin, wherein the main crane comprises a main base arranged on the cabin, a main suspension arm connected with the main base, a hydraulic cylinder for connecting the main base and the main suspension arm, a lifting hook, a steel wire rope, a pulley block and a power unit; the main base comprises a fixed seat, a rotating seat and an adjusting seat which are sequentially arranged from bottom to top, and the rotating seat is suitable for driving the adjusting seat to rotate relative to the fixed seat; the main suspension arm comprises a first end and a second end, the first end is movably connected with the adjusting seat, the hydraulic cylinder can drive the main suspension arm to rotate when stretching out and drawing back, and the second end is connected with the lifting hook; one end of the steel wire rope is connected with the lifting hook, the other end of the steel wire rope is connected with the main suspension arm and connected to the power unit by bypassing the pulley block, and the power unit is suitable for tensioning or releasing the steel wire rope to lift or put down the lifting hook.
2. The main hoisting device for a tower crane according to claim 1, wherein a swivel bearing is arranged at the bottom of the swivel base, the swivel bearing is connected with the fixed base, the swivel base is provided with a rotating motor, and the swivel base can drive the adjusting base to rotate relative to the fixed base along the swivel bearing under the driving of the rotating motor.
3. The main hoisting device for a tower crane according to claim 1, wherein the adjustment base is provided with a slip groove, the first end of the main boom is provided with a pin, the pin is inserted into the slip groove, the tail end of the hydraulic cylinder is pinned with the main base, the telescopic end of the hydraulic cylinder is pinned with the middle part of the main boom, and the main boom can move along the slip groove and/or rotate relative to the adjustment base when the hydraulic cylinder is telescopic.
4. A main hoisting device for a tower crane according to claim 3, wherein the adjustment seat is provided with a locking mechanism arranged at the sliding groove to block the pin from moving along the sliding groove, thereby limiting the movement of the main boom along the sliding groove.
5. A main hoisting device for a tower crane according to claim 1, wherein the pulley block comprises a plurality of pulleys arranged on the main boom and the main foundation for adjusting the wire rope trend.
6. The main hoisting device for a crane on a tower according to claim 1, wherein the second end of the main boom is provided with a main boom pulley, the hook is provided with a hook pulley, the outer wall of the main boom pulley is provided with a plurality of first sliding grooves along the circumferential direction, the hook pulley is provided with a second sliding groove matched with the first sliding groove, one end of the steel wire rope is fixed on the hook pulley, and the other end of the steel wire rope is sequentially wound around the hook pulley and the main boom pulley along the second sliding groove and the first sliding groove, and the power unit is connected after passing through the pulley block.
7. The main hoisting device for a tower crane according to claim 1, wherein a first fixing lug is arranged at the bottom of the fixing seat, a first fixing hole is arranged on the first fixing lug, a main crane installation seat is arranged in the engine room, a second fixing lug is arranged at the top of the main crane installation seat corresponding to the first fixing lug, a second fixing hole is arranged on the second fixing lug, and the fixing seat and the main crane installation seat are fixed through bolts penetrating through the first fixing hole and the second fixing hole.
8. A main hoisting device for a tower crane according to claim 1, wherein the power unit is fixed to the bottom of the tower.
9. A main hoisting device for a tower crane according to claim 1, wherein the power unit comprises a hoist or winch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322728917.0U CN220926114U (en) | 2023-10-11 | 2023-10-11 | Main hoisting device for tower crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322728917.0U CN220926114U (en) | 2023-10-11 | 2023-10-11 | Main hoisting device for tower crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220926114U true CN220926114U (en) | 2024-05-10 |
Family
ID=90962453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322728917.0U Active CN220926114U (en) | 2023-10-11 | 2023-10-11 | Main hoisting device for tower crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220926114U (en) |
-
2023
- 2023-10-11 CN CN202322728917.0U patent/CN220926114U/en active Active
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