CN220317225U - Lifting device for suspension arm - Google Patents
Lifting device for suspension arm Download PDFInfo
- Publication number
- CN220317225U CN220317225U CN202321904183.0U CN202321904183U CN220317225U CN 220317225 U CN220317225 U CN 220317225U CN 202321904183 U CN202321904183 U CN 202321904183U CN 220317225 U CN220317225 U CN 220317225U
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- pulley
- lifting
- suspension arm
- hook
- fixed
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- 239000000725 suspension Substances 0.000 title claims abstract description 29
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 25
- 239000010959 steel Substances 0.000 claims abstract description 25
- 238000004804 winding Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 3
- 230000008602 contraction Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model relates to the technical field of lifting of a suspension arm, in particular to a suspension arm lifting device, which comprises a container, a self-lifting crane and a mounting platform, wherein a winch is arranged in the container, the self-lifting crane comprises a bottom cylinder, a lifting hook, a suspension arm rotationally connected with the bottom cylinder, a lifting hook lifting assembly, a suspension arm lifting assembly and a pulley assembly, wherein the lifting hook lifting assembly comprises a lifting hook lifting pulley rotationally arranged in the suspension arm, a suspension arm rear pulley, a suspension arm front pulley and a first steel wire rope, the suspension arm lifting assembly comprises a second steel wire rope and a suspension arm rotating pulley rotationally arranged at the top of the bottom cylinder, and two fixed pulley blocks are arranged in the bottom cylinder; according to the utility model, the hydraulic cylinder is omitted, an additional hydraulic cylinder power distribution system is not needed, electric energy is saved, the hydraulic cylinder is omitted, the whole weight of the self-lifting crane can be reduced, the lifting operation is convenient, and the danger coefficient in the lifting process is greatly reduced.
Description
Technical Field
The utility model relates to the technical field of lifting of a suspension arm, in particular to a suspension arm lifting device.
Background
The wind driven generator is an electric power device which converts wind energy into mechanical work and drives a rotor to rotate and finally outputs alternating current. When the existing wind driven generator self-lifting crane lifts the suspension arm, the expansion and contraction of the hydraulic cylinder are used for control. However, because the working environment is high, the hydraulic system will increase the overall weight and require an additional power distribution system. This not only results in the complexity of the overhead operation but also greatly increases the risk factor, and thus needs to be improved.
Disclosure of Invention
The utility model aims to provide a lifting device for a suspension arm, which solves the problems in the prior art.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the lifting arm lifting device comprises a container, a self-lifting crane and a mounting platform, wherein a winch is mounted in the container, the self-lifting crane comprises a bottom barrel, a lifting hook, a lifting arm rotationally connected with the bottom barrel, a lifting hook lifting assembly, a lifting arm lifting assembly and a pulley assembly, wherein the lifting hook lifting assembly comprises a lifting hook lifting pulley rotationally mounted in the lifting arm, a lifting arm rear pulley, a lifting arm front pulley and a first steel wire rope, the lifting arm lifting assembly comprises a second steel wire rope and a lifting arm rotating pulley rotationally mounted at the top of the bottom barrel, two fixed pulley blocks are arranged in the bottom barrel, and the first steel wire rope extends out of the winch and sequentially passes through the pulley assembly, one fixed pulley block, the lifting hook lifting pulley, the lifting arm rear pulley and the lifting arm front pulley to be connected with the lifting hook; the second steel wire rope stretches out from the winch and sequentially passes through the pulley assembly, the other fixed pulley block and the boom rotating pulley to be connected with the boom.
Preferably, the winch comprises a double-shaft motor and two reels, and two output shafts of the double-shaft motor are respectively connected with the two reels.
Preferably, the pulley assembly comprises a first pulley rotatably arranged in the container, a second pulley, a third pulley, a fourth pulley and a fifth pulley which are arranged on the mounting platform, and the first pulley, the second pulley, the third pulley, the fourth pulley and the fifth pulley are all two.
Preferably, the fixed pulley block comprises two fixed pulleys rotatably arranged in the bottom cylinder, the first steel wire rope stretches out from one of the winding drums to sequentially bypass one of the first pulley, the second pulley, the third pulley, the fourth pulley and the fifth pulley, then bypass the two fixed pulleys in one of the fixed pulley blocks, and finally bypass the lifting hook lifting pulley, the lifting arm rear pulley and the lifting arm front pulley to be connected with the lifting hook.
Preferably, one side of the lifting hook close to the lifting arm is fixedly connected with a U-shaped hoop, and one side of the lifting arm close to the lifting hook is fixedly connected with an L-shaped plate.
Preferably, one side of the suspension arm far away from the lifting hook is fixedly connected with a fixed lug, the second steel wire rope stretches out from the other winding drum to sequentially bypass the other first pulley, the second pulley, the third pulley, the fourth pulley and the fifth pulley, then bypass the two fixed pulleys in the other fixed pulley block, and finally bypass the suspension arm rotating pulley to be fixedly connected with the fixed lug.
Compared with the prior art, the utility model has the beneficial effects that:
according to the suspension arm lifting device, the second steel wire rope is tightened, and the suspension arm of the self-lifting crane rotates clockwise. When the second steel wire rope is loosened, the suspension arm of the self-lifting crane rotates anticlockwise; compared with the lifting of the existing self-lifting crane boom, the lifting device omits a hydraulic cylinder, does not need an additional hydraulic cylinder power distribution system, saves electric energy, saves the hydraulic cylinder, reduces the overall weight of the self-lifting crane, facilitates the lifting operation, and greatly reduces the danger coefficient in the lifting process.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present utility model.
Fig. 2 is a schematic structural view of the self-lifting crane according to the present utility model.
Fig. 3 is a schematic structural view of the mounting platform according to the present utility model.
Fig. 4 is a schematic structural view of a self-lifting crane according to the prior art.
The meaning of each reference numeral in the figures is: 1. a container; 10. a winch; 11. a first pulley; 2. a mounting platform; 20. a second pulley; 21. a third pulley; 22. a fourth pulley; 23. a fifth pulley; 3. a bottom cylinder; 31. a suspension arm; 32. a lifting hook; 33. a fixed pulley block; 34. a lifting hook lifting pulley; 35. a boom rotating pulley; 36. a fixed ear; 37. a boom rear pulley; 38. a boom front pulley; 39. a hook pulley; 40. a first wire rope; 41. a second wire rope; 50. a U-shaped hoop; 51. an L-shaped plate; 6. and a hydraulic cylinder.
Detailed Description
The following description of the embodiments of the present utility model 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 utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "configured to," "engaged with," "connected to," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.
Furthermore, the terms "first," second, "" third, "" fourth, "and fifth" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying a number of technical features being indicated. Thus, a feature defining "first", "second", "third", "fourth", "fifth" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a number" is two or more, unless explicitly defined otherwise.
The general structure of the self-lifting crane for the wind driven generator in the prior art is described first, referring to fig. 4, the self-lifting crane comprises a bottom cylinder 3, a lifting hook 32, and a boom 31 rotatably connected with the bottom cylinder 3, a hydraulic cylinder 6 is arranged between the boom 31 and the bottom cylinder 3, a hydraulic cylinder seat of the hydraulic cylinder 6 is rotatably connected to the bottom cylinder 3, and a piston rod end of the hydraulic cylinder 6 is rotatably connected with the boom 31.
When the existing wind driven generator self-lifting crane lifts the suspension arm, the expansion and contraction of the hydraulic cylinder are used for control. However, because the working environment is high, the hydraulic system will increase the overall weight and require an additional power distribution system. This not only results in a cumbersome overhead operation but also greatly increases the risk factor.
In order to solve the existing technical problems, the utility model provides the following technical scheme:
1-3, the self-lifting crane in the utility model mainly aims at the self-lifting crane for a wind driven generator, and comprises a container 1, a self-lifting crane and a mounting platform 2, wherein a winch 10 is installed in the container; the top of the container 1 is opened, and one side of the container 1, which is far away from the winch, is opened; the mounting platform 3 is a mounting platform provided on the nacelle of the wind turbine.
The winch 10 includes a biaxial motor and two reels, two output shafts of the biaxial motor are respectively connected with the two reels, and the biaxial motor is mounted at the bottom of the inner wall of the container 1 by bolts.
The self-lifting crane comprises a bottom cylinder 3, a lifting hook 32 and a suspension arm 31 rotatably connected with the bottom cylinder 3.
The lifting hook lifting assembly, the lifting arm lifting assembly and the pulley assembly are also included; referring to fig. 1-3, the pulley assembly includes a first pulley 11 rotatably mounted in the container 1, a second pulley 20, a third pulley 21, a fourth pulley 22, and a fifth pulley 23 disposed on the mounting platform 2, and the first pulley 11, the second pulley 20, the third pulley 21, the fourth pulley 22, and the fifth pulley 23 are provided with two.
Specifically, the end of the mounting platform 2, which is close to the container 1, is provided with a groove, the fifth pulley 23 is rotatably mounted in the groove, and the second pulley 20 is rotatably mounted at the end of the mounting platform 2, which is close to the container 1.
It should be noted that, two fixed pulley blocks 33 are provided in the bottom cylinder 3, and the fixed pulley blocks 33 include two fixed pulleys rotatably installed in the bottom cylinder 3.
Referring to fig. 2, the hook lifting assembly includes a hook lifting pulley 34 rotatably mounted within a boom 31, a boom rear pulley 37, a boom front pulley 38, a first wire rope 40; the first wire rope 40 extends from the winch 10 and is connected with the lifting hook 32 through the pulley assembly, one of the fixed pulley blocks 33, the lifting hook lifting pulley 34, the lifting arm rear pulley 37 and the lifting arm front pulley 38 in sequence; the hook 32 has mounted therein a hook pulley 39 and a first wire rope 40 that is fixedly connected (may be bolted) to the hook pulley 39 at an end thereof remote from the winch 10.
Further, the first wire rope 40 extends from one of the drums to bypass one of the first pulleys 11, one of the second pulleys 20, one of the third pulleys 21, one of the fourth pulleys 22 and one of the fifth pulleys 23 in sequence, bypass two fixed pulleys in one of the fixed pulley blocks 33, and finally bypass the hook lifting pulley 34, the boom rear pulley 37 and the boom front pulley 38 to be connected with the hook pulley 39 in the hook 32.
When the self-lifting crane lifts and finishes turning over on the mounting platform, the lifting hook of the self-lifting crane boom lifts when the first steel wire rope tightens up, and the lifting hook of the self-lifting crane boom falls when the first steel wire rope loosens.
The boom lifting assembly comprises a second steel wire rope 41 and a boom rotating pulley 35 rotatably mounted on the top of the bottom cylinder 3, wherein the second steel wire rope 41 extends out of the winch 10 and is connected with the boom through the pulley assembly, the other fixed pulley block 33 and the boom rotating pulley 35 in sequence.
Further, the side of the boom 31 far away from the lifting hook 32 is fixedly connected with a fixing lug 36, the second steel wire rope 41 extends from the other reel to bypass the other first pulley 11, the other second pulley 20, the other third pulley 21, the other fourth pulley 22 and the other fifth pulley 23 in sequence, bypass the two fixing pulleys in the other fixed pulley block 33, and finally bypass the boom rotating pulley 35 to be fixedly connected with the fixing lug 36 (can be bolted).
After the self-lifting crane lifts and turns over on the mounting platform, the second steel wire rope is tightened, and the suspension arm of the self-lifting crane rotates clockwise. When the second steel wire rope is loosened, the suspension arm of the self-lifting crane rotates anticlockwise; compared with the lifting of the existing self-lifting crane boom, the lifting device omits a hydraulic cylinder, does not need an additional hydraulic cylinder power distribution system, saves electric energy, saves the hydraulic cylinder, reduces the overall weight of the self-lifting crane, facilitates the lifting operation, and greatly reduces the danger coefficient in the lifting process.
The side of the lifting hook 32 close to the lifting arm 31 is fixedly connected with a U-shaped hoop 50, and the side of the lifting arm 31 close to the lifting hook 32 is fixedly connected with an L-shaped plate 51; when the hook 32 is lifted up to the end of the boom 31 remote from the bottom wall, the L-shaped plate 51 can be inserted into the U-shaped collar 50, so that excessive swinging of the hook in the horizontal direction is not easy.
It should be noted that, before the self-lifting crane turns over, the first wire rope 40 extends from one of the drums to bypass one of the first pulleys 11, one of the second pulleys 20, one of the third pulleys 21, one of the fourth pulleys 22, one of the fifth pulleys 23, bypass two fixed pulleys in one of the fixed pulley blocks 33, and finally bypass the hook lifting pulley 34, the boom rear pulley 37, and the boom front pulley 38 to be connected with the hook pulley 39 in the hook 32; the second steel wire rope 41 extends from the other reel to bypass the other first pulley 11, the other second pulley 20, the other third pulley 21, the other fourth pulley 22 and the other fifth pulley 23 in sequence, then bypass the two fixed pulleys in the other fixed pulley block 33, and finally bypass the boom rotating pulley 35 to be fixedly connected with the fixed lug 36 (can be bolted); at this time, the self-elevating crane may be elevated while tightening the first and second wire ropes 41.
When the self-lifting crane is turned over, as shown in fig. 1, the first steel wire rope 40 extends from one of the reels to bypass one of the first pulleys 11, one of the second pulleys 20, one of the third pulleys 21 and one of the fourth pulleys 22 in sequence, bypass two fixed pulleys in one of the fixed pulley blocks 33, and finally bypass the lifting hook lifting pulley 34, the lifting arm rear pulley 37 and the lifting arm front pulley 38 to be connected with the lifting hook pulley 39 in the lifting hook 32; the second wire rope 41 extends from the other reel to bypass the other first pulley 11, the other second pulley 20, the other third pulley 21 and the other fourth pulley 22 in turn, then bypass the two fixed pulleys in the other fixed pulley block 33, and finally bypass the boom rotating pulley 35 to be fixedly connected (can be bolted) with the fixed lug 36.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides a davit plays to rise device, includes container (1), self-lifting crane, mounting platform (2) that internally mounted has winch (10), its characterized in that: the self-lifting crane comprises a bottom cylinder (3), a lifting hook (32), a lifting arm (31) rotationally connected with the bottom cylinder (3), a lifting hook lifting assembly, a lifting arm lifting assembly and a pulley assembly, wherein the lifting hook lifting assembly comprises a lifting hook lifting pulley (34), a lifting arm rear pulley (37), a lifting arm front pulley (38) and a first steel wire rope (40) which are rotationally arranged in the lifting arm (31), the lifting arm lifting assembly comprises a second steel wire rope (41) and a lifting arm rotating pulley (35) rotationally arranged at the top of the bottom cylinder (3), two fixed pulley blocks (33) are arranged in the bottom cylinder (3), the first steel wire rope (40) extends out of a winch (10) and sequentially passes through the pulley assembly, one fixed pulley block (33), the lifting hook lifting pulley (34), the lifting arm rear pulley (37) and the lifting arm front pulley (38) to be connected with the lifting hook (32); the second steel wire rope (41) stretches out from the winch (10) and is connected with the suspension arm through the pulley assembly, the other fixed pulley block (33) and the suspension arm rotating pulley (35) in sequence.
2. A boom hoist as claimed in claim 1, wherein: the winch (10) comprises a double-shaft motor and two reels, and two output shafts of the double-shaft motor are respectively connected with the two reels.
3. A boom hoist as claimed in claim 2, wherein: the pulley assembly comprises a first pulley (11) rotatably arranged in the container (1), a second pulley (20), a third pulley (21), a fourth pulley (22) and a fifth pulley (23) which are arranged on the mounting platform (2), wherein the first pulley (11), the second pulley (20), the third pulley (21), the fourth pulley (22) and the fifth pulley (23) are all provided with two.
4. A boom hoist as claimed in claim 3, wherein: the fixed pulley block (33) comprises two fixed pulleys rotatably arranged in the bottom cylinder (3), a first steel wire rope (40) stretches out from one of the drums to sequentially bypass one of the first pulley (11), the second pulley (20), the third pulley (21), the fourth pulley (22) and the fifth pulley (23), bypass the two fixed pulleys in one of the fixed pulley blocks (33), and finally bypass the lifting hook lifting pulley (34), the lifting arm rear pulley (37) and the lifting arm front pulley (38) to be connected with the lifting hook (32).
5. The boom hoist of claim 4, characterized in that: one side of the lifting hook (32) close to the lifting arm (31) is fixedly connected with a U-shaped hoop (50), and one side of the lifting arm (31) close to the lifting hook (32) is fixedly connected with an L-shaped plate (51).
6. The boom hoist of claim 5, characterized in that: one side of the suspension arm (31) far away from the lifting hook (32) is fixedly connected with a fixed lug (36), a second steel wire rope (41) stretches out from the other winding drum to sequentially bypass the other first pulley (11), the second pulley (20), the third pulley (21), the fourth pulley (22) and the fifth pulley (23), bypass two fixed pulleys in the other fixed pulley block (33), and finally bypass the suspension arm rotating pulley (35) to be fixedly connected with the fixed lug (36).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321904183.0U CN220317225U (en) | 2023-07-19 | 2023-07-19 | Lifting device for suspension arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321904183.0U CN220317225U (en) | 2023-07-19 | 2023-07-19 | Lifting device for suspension arm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220317225U true CN220317225U (en) | 2024-01-09 |
Family
ID=89415700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321904183.0U Active CN220317225U (en) | 2023-07-19 | 2023-07-19 | Lifting device for suspension arm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220317225U (en) |
-
2023
- 2023-07-19 CN CN202321904183.0U patent/CN220317225U/en active Active
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