CN215711125U - Large-angle hoisting equipment for single blades of fan - Google Patents
Large-angle hoisting equipment for single blades of fan Download PDFInfo
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- CN215711125U CN215711125U CN202122043006.5U CN202122043006U CN215711125U CN 215711125 U CN215711125 U CN 215711125U CN 202122043006 U CN202122043006 U CN 202122043006U CN 215711125 U CN215711125 U CN 215711125U
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Abstract
The utility model discloses a large-angle hoisting device for a single blade of a fan, which comprises a main hoisting platform, wherein a generator, an electric control cabinet and a hydraulic station are arranged in the middle of the main hoisting platform, and lifting lugs are arranged at four corners of the main hoisting platform; the suspension frame is positioned above the main suspension platform and connected with lifting lugs at four corners of the main suspension platform, and when the equipment is in no-load, a suspension point of the suspension frame and the central point of the main suspension platform are positioned on the same straight line; the clamping device is arranged at the lower end of the main hoisting platform; the blade angle adjusting device is connected between the suspension frame and the main suspension platform, can drive the main suspension platform to rotate in a fixed point manner relative to the suspension frame, is provided with two hydraulic winches symmetrically arranged at two ends of the central axis of the main suspension platform and a pulley arranged outside each hydraulic winch in a matched manner, each hydraulic winch is fixedly connected with a suspension point of the suspension frame through a steel wire rope wound on the pulley, and the hydraulic winches are provided with displacement sensors. The utility model has better universality for single blades under different working conditions, and can install the single blade of the fan at multiple angles.
Description
Technical Field
The utility model relates to the technical field of wind power, in particular to large-angle hoisting equipment for a single blade of a fan.
Background
The wind power generation core product is a fan. The fan is mainly assembled by main components such as a tower, a cabin, a hub, three blades and the like. The installation of the blades is a key link for assembling the fan, and the installation of the blades is finished by hoisting a single blade lifting appliance. When the blade is hoisted, the angle of the blade needs to be adjusted for many times. The large-angle adjustment of the traditional single-blade lifting appliance is realized by adjusting the angle of a lifting arm by a hydraulic cylinder, the displacement of a lifting point is realized, the gravity center of a blade deviates, the lifting appliance rotates to enable the lifting point and the gravity center to form a vertical line, and the rotation of the blade is realized.
Disclosure of Invention
In order to solve the technical problems in the background art, the utility model provides the large-angle hoisting equipment which is low in cost, high in efficiency, better in universality for single blades under different working conditions and capable of installing the single blades of the fan in a multi-angle inclined insertion mode.
The utility model adopts the following technical scheme: a large-angle hoisting device for a single blade of a fan comprises a main hoisting platform, wherein a generator, an electric control cabinet and a hydraulic station are arranged in the middle of the main hoisting platform, and lifting lugs are arranged at four corners of the main hoisting platform; the suspension frame is positioned above the main suspension platform and connected with lifting lugs at four corners of the main suspension platform, and when the equipment is in no-load, a suspension point of the suspension frame and the central point of the main suspension platform are positioned on the same straight line; the clamping device is arranged at the lower end of the main hoisting platform and used for clamping the single blade; the blade angle adjusting device is connected between the suspension frame and the main suspension platform, can drive the main suspension platform to rotate relative to the suspension frame at a fixed point, is provided with two hydraulic winches symmetrically arranged at two ends of the central axis of the main suspension platform and a pulley arranged outside each hydraulic winch in a matched manner, and each hydraulic winch is fixedly connected with the suspension point of the suspension frame through an adjusting steel wire rope wound on the pulley; and the hydraulic winch is provided with a displacement sensor and a brake sensor.
Preferably, the main hanging platform can rotate in a fixed point angle range of-60-60 degrees relative to the suspension point of the suspension frame.
As an optimization scheme, the main hoisting platform is provided with an inclination angle sensor for monitoring the rotation angle of the main hoisting platform.
As an optimized scheme, the suspension frame is provided with a pulley and a main suspension chain as suspension points, two ends of the main suspension chain penetrate through the pulley and extend downwards, and the four equal-length branch suspension chains are respectively connected with the two ends of the main suspension chain and are movably connected with the four lifting lugs, two sensor pin shafts are installed at the bottom of the pulley and are fixedly connected with the adjusting steel wire rope, and the top of the pulley is connected with an external hanging strip.
As an optimized scheme, the clamping device comprises at least two groups of clamping hydraulic cylinders symmetrically arranged in the length direction of the main hoisting platform, and a blade root end clamp body and a blade tip end clamp body which are respectively connected to the bottoms of the clamping hydraulic cylinders, the upper ends of the blade root end clamp body and the blade tip end clamp body are respectively fixedly connected to the left end and the right end of the main hoisting platform through a plurality of groups of bolts, the blade root end clamp body and the blade tip end clamp body are C-shaped, and the clamping hydraulic cylinders are electrically connected with the electric control cabinet and the hydraulic station.
As an optimized scheme, four groups of the clamping hydraulic cylinders are arranged, and the four groups of the clamping hydraulic cylinders comprise two groups of clamping hydraulic cylinders which are respectively installed at the tops of the blade root end clamp bodies and two groups of clamping hydraulic cylinders which are installed at the tops of the blade tip end clamp bodies.
As an optimization scheme, monitoring equipment is respectively installed at the left end and the right end of the main hoisting platform.
Preferably, the generator is a remotely controllable generator.
Compared with the prior art, the utility model has the advantages that:
according to the utility model, the blade angle adjusting device is arranged to hoist the single blade of the fan at a large angle, so that the installation time is short, the efficiency is high, the smooth butt joint of the blade and the hub can be realized in high altitude without an additional barring tool, the adjusting speed is high, and the use requirements of the single blade under different working conditions are met.
The utility model can be operated remotely, has high hoisting efficiency, high automation degree and wide application range, and simultaneously adopts a high-altitude butt joint mode, can reduce land occupation area by 40-50%, greatly reduces flat slope and felling cost and protects ecological landform of a wind field to the maximum extent.
Drawings
FIG. 1 is a front view of a single-blade large-angle hoisting device of a fan according to the present invention;
FIG. 2 is a left side view of the fan single blade large angle hoisting device of the present invention;
FIG. 3 is a top view of the fan single blade large-angle hoisting device of the present invention;
FIG. 4 is a 60-degree oblique insertion state diagram of the single-blade large-angle hoisting equipment for the fan of the utility model;
FIG. 5 is a-30 degree inclined insertion state diagram of the single-blade large-angle hoisting equipment of the fan of the utility model;
the system comprises a main hoisting platform 1, a generator 11, an electric control cabinet 12, a hydraulic station 13, a lifting lug 14, an inclination angle sensor 15, a monitoring device 16, a suspension frame 2, a pulley 21, a main hoisting chain 22, a branch hoisting chain 23, a sensor pin shaft 24, an external hanging strip 25, a clamping device 3, a clamping hydraulic cylinder 31, a blade root end clamp body 32, a blade tip end clamp body 33, a blade angle adjusting device 4, a hydraulic winch 41, a pulley 42, an adjusting steel wire rope 43 and a single blade 5.
Detailed Description
Hereinafter, in order to facilitate the technical solution of the present invention for those skilled in the art to understand, further description will be made with reference to the accompanying drawings. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention.
In the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the utility model. It may be evident, however, that one or more embodiments may be practiced without these specific details. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
As shown in figure 1, the large-angle hoisting equipment for the single blade of the fan comprises a main hoisting platform 1, a suspension frame 2, a clamping device 3 and a blade angle adjusting device 4, wherein a generator 11, an electric control cabinet 12 and a hydraulic station 13 are arranged in the middle of the main hoisting platform 1, but the installation positions of the electric control cabinet 12 and the hydraulic station 13 are not limited to the above, the generator 11 mainly provides power for the whole blade hoisting equipment, the electric control cabinet 12 and the hydraulic station 13 are mainly used for controlling the clamping force and the clamping action of the clamping device 3 on the single blade 5, and lifting lugs 14 are arranged at four corners of the main hoisting platform 1 and are used for connecting the suspension frame 2. The suspension frame 2 is positioned above the main suspension platform 1 and connected with lifting lugs 14 at four corners of the main suspension platform 1, and when the equipment is in no-load, a suspension point of the suspension frame 2 and the central point of the main suspension platform 1 are positioned on the same straight line; the clamping device 3 is arranged at the lower end of the main hoisting platform 1 and used for clamping the single blade 5; the blade angle adjusting device 4 is connected between the suspension frame 2 and the main suspension platform 1, and can drive the main suspension platform 1 to rotate at a fixed point relative to the suspension frame 2 so as to realize the rotary installation of the single blade 5, and the integral structure of the hoisting equipment is formed above.
The blade angle adjusting device 4 comprises two hydraulic winches 41 symmetrically arranged at two ends of a central axis of the main hoisting platform 1 and pulleys 42 arranged outside each hydraulic winch 41 in a sleeved mode, each hydraulic winch 41 is fixedly connected with a suspension point of the suspension frame 2 through an adjusting steel wire rope 43 wound on each pulley 42, the two hydraulic winches 41 can be used as a driving end and a driven end respectively and can be switched back and forth, and when one hydraulic winch 41 serves as the driving end to take up a rope, the other hydraulic winch 41 serves as the driven end to pay off the rope. The hydraulic winch 41 is provided with a displacement sensor for controlling the length of the rope outlet and the rope releasing of the hydraulic winch 41, so as to control the fixed-point rotation angle of the main hoisting platform 1 corresponding to the suspension frame 2, and the hydraulic winch 41 is also provided with a brake sensor for ensuring that the main hoisting platform 1 can keep fixed after rotating for a certain angle. In this embodiment, the angle range of the fixed-point rotation of the main suspension platform 1 relative to the suspension point of the suspension frame 2 is controlled to be-60 to 60 °, and meanwhile, the tilt angle sensor 15 is installed on the main suspension platform 1 and used for monitoring the rotation angle of the main suspension platform 1.
The suspension frame 2 is provided with a pulley 21 and a main suspension chain 22 as suspension points, two ends of the main suspension chain 22 penetrate through the pulley 21 to extend downwards and are movably connected with four lifting lugs 14 through four equal-length branch suspension chains 23 respectively connected with the two ends of the main suspension chain, two sensor pin shafts 24 are installed at the bottom of the pulley 21, the sensor pin shafts 24 are fixedly connected with an adjusting steel wire rope 43, and the top of the pulley 21 is connected with an external hanging strip 25 for being connected with an external lifting device.
When one end of the hydraulic winch 7 serves as a driving end, a rated load value is set, the main lifting chain 22 can be driven to slide on the pulley 21 by uniform-speed rotation, when one end of the hydraulic winch 7 serves as a driven end, only constant tension with a certain numerical value needs to be kept, a follow-up function is achieved, the follow-up rope outlet speed is nonlinear and is not influenced by the rotating speed of the hydraulic winch 41 at the driving end, meanwhile, the constant tension is set, only the steel wire rope 43 needs to be kept and adjusted in a tension state, and rope disorder in the rope releasing process is avoided. The hydraulic winch 41 is used for switching the driving end and the driven end, so that the main hoisting platform 1 can slide left and right in a large range. The inclination angle of the beam main hoisting platform 1 is judged through the inclination angle sensor 6 on the beam platform 5, so that the inclination angle of the single blade 5 is judged. The working state of the device is fed back and monitored by detecting the force value of the sensor pin shaft 24 connected on the pulley 21.
The clamping device 3 comprises at least two groups of clamping hydraulic cylinders 31 symmetrically arranged in the length direction of the main hoisting platform 1, and a blade root end clamp body 32 and a blade tip end clamp body 33 which are respectively connected to the bottom of the clamping hydraulic cylinders 31, wherein the upper ends of the blade root end clamp body 32 and the blade tip end clamp body 33 are respectively fixedly connected to the left end and the right end of the main hoisting platform 1 through a plurality of groups of bolts, and the reinforcing effect is achieved. The blade root end clamp body 32 and the blade tip end clamp body 33 are C-shaped, the clamping hydraulic cylinder 31 is electrically connected with the electric control cabinet 12 and the hydraulic station 13, the blade root end clamp body 32 and the blade tip end clamp body 33 respectively clamp and open a single blade through the clamping hydraulic cylinder 31, and the clamping force and the clamping action are controlled by the hydraulic station 13 and the electric control cabinet 12.
In this embodiment, the clamping hydraulic cylinders 31 are provided with four sets, including two sets respectively installed on the top of the blade root end clamp body 32 and two sets installed on the top of the blade tip end clamp body, so that the blade root end clamp body 32 and the blade tip end clamp body 33 can maintain a better and firmer clamping effect on a single blade.
The left end and the right end of the main hoisting platform 1 are respectively provided with a monitoring device 16 for observing the clamping and opening states of the blade root end clamp body 32 and the blade tip end clamp body 33, so that the accurate clamping position is ensured, and the single blade is not damaged when the whole device is disassembled.
In addition, the generator 11 is a remote-control generator, the whole hoisting action process is controlled by a remote controller, the operation is convenient, the labor cost is saved, and the production efficiency is improved.
When the hoisting equipment is used, the first single blade and the second single blade are installed in a horizontal installation mode, the third single blade is installed in a mode of 30 degrees anticlockwise inclined insertion, the installation mode can not be limited to the mode, and the installation mode can be adjusted according to the field condition. When installing first single blade, start generator 11 through the remote controller, open blade root end clamp 32 and blade tip end clamp 33 respectively, clip the single blade, make and step up pneumatic cylinder 31 and reach the setting value, it hangs the flat hoist and mount of this lifting device single blade, with first single blade horizontal installation on wheel hub, lifting device does not demolish this moment, push down through this equipment dead weight under the cooperation of crane, make the impeller clockwise rotation 60 of installing first single blade, dismantle this equipment, hoist and mount driftage unit 180. When a second single blade is installed, the blade root end clamp body 32 and the blade tip end clamp body 33 are opened respectively to clamp the second single blade, the clamping hydraulic cylinder 31 is made to reach a set force value, the hoisting device is hoisted to horizontally hoist the single blade, the second single blade is horizontally installed on the hub, the hoisting device is not dismantled at the moment, the hoisting device is hoisted under the cooperation of a crane, the impeller provided with the second single blade rotates anticlockwise by 30 degrees, the device is disassembled, and the hoisting unit drifts by 180 degrees. When a third single blade is installed, the hoisting equipment clamps the third single blade, the single blade is horizontally lifted and is close to the hub, the remote controller controls the driving end hydraulic winch 41 to take up the rope, the driven end hydraulic winch 42 to pay off the rope, the single blade is in a state of 30 degrees anticlockwise, the third single blade is obliquely inserted and is butted with the hub, the installation is carried out, and the equipment is disassembled. So far, the complete installation of three list blades is accomplished, and whole process does not need extra barring frock to rotate the impeller, convenient operation, and efficiency is higher.
The fan single blade is hoisted at a large angle by arranging the blade angle adjusting device, the installation time is short, the efficiency is high, the smooth butt joint of the blade and the hub can be realized in high altitude without an additional barring tool, the adjusting speed is high, the use requirements of the single blade under different working conditions are met, the fan single blade hoisting device can be operated remotely, the hoisting efficiency is high, the automation degree is high, the application range is wide, meanwhile, the land occupation area can be reduced by 40-50% by adopting a high altitude butt joint mode, the flat slope and felling cost is greatly reduced, and the ecological landform of a wind field is protected to the maximum extent.
The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the spirit of the present invention.
Claims (8)
1. The utility model provides a big angle lifting device of fan list blade which characterized in that includes:
the generator (11), the electric control cabinet (12) and the hydraulic station (13) are arranged in the middle of the main hanging platform (1), and lifting lugs (14) are arranged at four corners of the main hanging platform;
the suspension frame (2) is positioned above the main suspension platform (1) and connected with lifting lugs (14) at four corners of the main suspension platform (1), and when the equipment is in no-load, a suspension point of the suspension frame (2) and a central point of the main suspension platform (1) are positioned on the same straight line;
the clamping device (3) is arranged at the lower end of the main hoisting platform (1) and is used for clamping a single blade;
the blade angle adjusting device (4) is connected between the suspension frame (2) and the main suspension platform (1) and can drive the main suspension platform (1) to rotate in a fixed point relative to the suspension frame (2), the blade angle adjusting device is provided with two hydraulic winches (41) symmetrically arranged at two ends of the central axis of the main suspension platform (1) and pulleys (42) arranged outside each hydraulic winch (41) in a matched mode, and each hydraulic winch (41) is fixedly connected with a suspension point of the suspension frame (2) through an adjusting steel wire rope (43) wound on each pulley (42); and a displacement sensor and a brake sensor are arranged on the hydraulic winch (41).
2. The large-angle hoisting equipment for the single fan blade according to claim 1, characterized in that: the angle range of the fixed-point rotation of the main hoisting platform (1) relative to the suspension point of the suspension frame (2) is-60-60 degrees.
3. The large-angle hoisting equipment for the single fan blade according to claim 2, characterized in that: and the main hoisting platform (1) is provided with an inclination angle sensor (15) for monitoring the rotation angle of the main hoisting platform (1).
4. The large-angle hoisting equipment for the single fan blade according to claim 3, characterized in that: suspension frame (2) possess coaster (21) and main chain sling (22) as the hanging point, the both ends of main chain sling (22) pass coaster (21) stretch out downwards and through four isometric branch chain sling (23) rather than the both ends be connected respectively with four lug (14) swing joint, two sensor round pin axles (24) are installed to coaster (21) bottom, sensor round pin axle (24) with adjust wire rope (43) and link firmly, coaster (21) top is connected with external suspender (25).
5. The large-angle hoisting equipment for the single fan blade according to claim 4, characterized in that: the clamping device (3) comprises at least two groups of clamping hydraulic cylinders (31) which are symmetrically arranged in the length direction of the main hoisting platform (1), a blade root end clamp body (32) and a blade tip end clamp body (33) which are respectively connected to the bottom of the clamping hydraulic cylinders (31), the upper ends of the blade root end clamp body (32) and the blade tip end clamp body (33) are respectively fixedly connected to the left end and the right end of the main hoisting platform (1) through a plurality of groups of bolts, the blade root end clamp body (32) and the blade tip end clamp body (33) are C-shaped, and the clamping hydraulic cylinders (31) are electrically connected with the electric control cabinet (12) and the hydraulic station (13).
6. The large-angle hoisting equipment for the single fan blade according to claim 5, characterized in that: the clamping hydraulic cylinders (31) are arranged in four groups, including two groups which are respectively arranged at the tops of the blade root end clamp bodies (32) and two groups which are arranged at the tops of the blade tip end clamp bodies.
7. The large-angle hoisting equipment for the single fan blade according to claim 6, characterized in that: monitoring equipment (16) are respectively installed at the left end and the right end of the main hoisting platform (1).
8. The large-angle hoisting equipment for the single fan blade according to claim 7, characterized in that: the generator (11) is a remotely controllable generator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122043006.5U CN215711125U (en) | 2021-08-27 | 2021-08-27 | Large-angle hoisting equipment for single blades of fan |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122043006.5U CN215711125U (en) | 2021-08-27 | 2021-08-27 | Large-angle hoisting equipment for single blades of fan |
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| CN215711125U true CN215711125U (en) | 2022-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122043006.5U Active CN215711125U (en) | 2021-08-27 | 2021-08-27 | Large-angle hoisting equipment for single blades of fan |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115504363A (en) * | 2022-11-23 | 2022-12-23 | 库珀新能源股份有限公司 | Special lifting appliance for lifting wind power generation blades |
-
2021
- 2021-08-27 CN CN202122043006.5U patent/CN215711125U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115504363A (en) * | 2022-11-23 | 2022-12-23 | 库珀新能源股份有限公司 | Special lifting appliance for lifting wind power generation blades |
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