CN115140651A - Fan blade lifting appliance swinging mechanism and method - Google Patents
Fan blade lifting appliance swinging mechanism and method Download PDFInfo
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- CN115140651A CN115140651A CN202210576082.9A CN202210576082A CN115140651A CN 115140651 A CN115140651 A CN 115140651A CN 202210576082 A CN202210576082 A CN 202210576082A CN 115140651 A CN115140651 A CN 115140651A
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- Prior art keywords
- guide rail
- main
- fan blade
- linear driving
- chute
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
- B66C13/08—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for depositing loads in desired attitudes or positions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C15/00—Safety gear
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to a fan blade lifting appliance swinging mechanism and a method thereof, wherein the swinging mechanism comprises a lifting rod and a lifting beam hinged with the lifting rod, a main pushing chute is arranged on the lifting rod, a main pushing sliding block is matched in the main pushing chute in a sliding way, a guide rail chute is arranged on the lifting beam, a guide rail sliding block is matched in the guide rail chute in a sliding way, the main pushing chute and the guide rail chute are arranged in a crossed way, a linear driving part is arranged on the lifting rod and/or the lifting beam, the moving end of the linear driving part is rotatably connected with a rotating shaft and can drive the rotating shaft to reciprocate along a straight line, and the rotating shaft is rotatably connected with the main pushing sliding block and the guide rail sliding block. According to the invention, the linear driving part, the rotating shaft, the main push chute, the main push slider, the guide rail chute and the guide rail slider form the connecting rod slider mechanism, the force required for pushing the hanger rod and the hanging beam to rotate around the hinge point is smaller, and the connecting rod slider mechanism can select a single linear driving part with small driving force, so that the connecting rod slider mechanism has good economy, reliability and safety.
Description
Technical Field
The invention relates to the field of wind power installation, in particular to a fan blade lifting appliance swing mechanism and a method.
Background
The traditional installation mode of the fan blade generally adopts an impeller installation mode, namely, a hub and three blades are assembled into an impeller whole at a low position on the ground, and then the whole is lifted to the height of an engine room to be in butt joint with the engine room. However, as the competition of the wind power industry is intensified, in order to reduce the electricity consumption cost, the capacity and the wind sweeping area of the wind driven generator are increased more and more rapidly, and the length and the weight of the blades of the fan are also increased sharply. This results in the weight of the impeller exceeding the lifting capacity of existing cranes, and the cost of more powerful cranes is enormous and uneconomical. In addition, in order to reduce the electricity consumption cost, the installation period of the wind turbine is more and more expected to be compressed, which necessarily requires the improvement of the installation efficiency and the prolongation of the installation window time by increasing the wind speed which can be accommodated by the installation. And the traditional impeller has low installation efficiency and low adaptive wind speed. These all make the traditional impeller mounting mode more and more difficult to adapt to the technical development trend of wind power.
Under the background, the single-blade installation technology using the single-blade hanger as a tool can be well adapted to new requirements. Through installing wheel hub and blade alone, lightened the weight of hoist and mount at every turn greatly. Due to the particularity of the shape of the blade, the swinging angle of the lifting appliance needs to be adjusted before and during the lifting process of the blade, and the blade is guaranteed to meet the requirements during the lifting and mounting processes.
Chinese patent application with patent publication number CN109969933A discloses a single-blade installation hanger for fan blades, which is used for realizing that a pitch mechanism with blade swing adopts a four-bar mechanism driven by an oil cylinder, and this form can cause large stress on the oil cylinder in the rotation process, also can cause large stress on the connecting part of a main beam, a rocker arm and the oil cylinder, and can be driven only by the combined action of a large thrust oil cylinder or a plurality of small thrust oil cylinders, so that the hanger is not economical to realize and also can bring certain potential safety hazards.
Disclosure of Invention
The invention aims to: the swing mechanism and the method for the fan blade lifting appliance are used for solving the problems that in the prior art, the existing fan blade lifting appliance is driven by a four-bar mechanism driven by an oil cylinder, the oil cylinder is stressed greatly in the rotation process, the stress of a connecting part of a main beam, a suspender and the oil cylinder is also large, the main beam, the suspender and the oil cylinder can be driven under the combined action of a large thrust oil cylinder or a plurality of small thrust oil cylinders, the swing mechanism is not economical to realize, and certain safety risk can be brought.
In order to achieve the purpose, the invention adopts the technical scheme that:
the utility model provides a fan blade hoist wabbler mechanism, includes the jib and rather than articulated hanging beam, it pushes away the spout to be equipped with the owner on the jib, sliding fit has the owner to push away the slider in pushing away the spout mainly, be equipped with the guide rail spout on the hanging beam, sliding fit has the guide rail slider in the guide rail spout, the owner push away the spout with guide rail spout cross arrangement, the jib and/or be equipped with linear drive part on the hanging beam, linear drive part's motion end rotates and is connected with the pivot, and can drive linear reciprocating motion is followed to the pivot, the pivot rotates and connects owner push away the slider with the guide rail slider, the hanging beam bears the blade.
By adopting the fan blade lifting appliance swinging mechanism, a connecting rod slider mechanism is formed by the linear driving part, the rotating shaft, the main pushing sliding groove, the main pushing slider, the guide rail sliding groove and the guide rail slider, and the linear driving part drives the main pushing slider and the guide rail slider to move in the corresponding sliding grooves, so that the hanger rod and the lifting beam are pushed to rotate around a hinged point, the purpose of changing the included angle between the hanger rod and the lifting beam is achieved, the adjustment of the inclination angle of the single-blade lifting appliance is realized, and the swinging function is realized; when the guide rail sliding block moves in the guide rail sliding groove, the guide rail sliding block is mainly acted by friction force along the sliding groove direction, and is mainly acted by component force of the main pushing sliding block in the direction along the sliding groove normal direction, the acting force is smaller, the main pushing sliding block is arranged in the main pushing sliding groove, and is mainly acted by the push-pull force of the linear driving part when reciprocating in the main pushing sliding groove, the force required for changing the size of the included angle between the suspension rod and the suspension beam is smaller, and the connecting rod sliding block mechanism can select a single linear driving part with small driving force, so that the connecting rod sliding block mechanism has good economy, reliability and safety.
Preferably, the hanger rod is provided with a main pushing sliding groove along the length direction of the hanger rod, and the hanger beam is provided with a guide rail sliding groove along the length direction of the hanger beam.
Preferably, the top of the suspender is provided with a lifting hole, and the lifting hole is used for connecting a sling of hoisting equipment.
Preferably, the bottom of the suspension rod is provided with a connecting hole, and the suspension rod and the suspension beam are hinged through the connecting hole.
Further preferably, an included angle alpha is formed between a connecting line of the connecting hole and the hanging hole and an axis of the main pushing sliding groove, and the angle range of the alpha is 5-45 degrees.
By adopting the structure, the connecting line of the axis of the main push chute and the two hinge points on the hanging rod is set to be alpha, so that the shortest stroke of the reciprocating motion of the rotating shaft along a straight line can be changed, the moving distance of the moving end of the linear driving part is reduced, the sizes of the guide rail chute and the hanging beam are correspondingly reduced, the structure of the fan blade lifting appliance swinging mechanism is more compact, and the optimal matching of force and stroke is achieved.
Further preferably, α is in the range of 10 ° to 20 °.
Further preferably, α is in the range of 15 ° to 20 °.
Preferably, the moving end of the linear driving component drives the rotating shaft to move linearly along a direction parallel to the setting direction of the main push sliding chute or the setting direction of the guide rail sliding chute.
Further preferably, the moving end of the linear driving component drives the rotating shaft to coincide with the setting direction of the main push sliding groove or the setting direction of the guide rail sliding groove along the linear moving direction.
Preferably, the main sliding block is matched with two faces of the main sliding chute, first wear-resisting plates are arranged on the two faces of the main sliding chute respectively, and the guide rail sliding block is matched with two faces of the guide rail sliding chute, second wear-resisting plates are arranged on the two faces of the guide rail sliding chute respectively.
Further preferably, the first wear plate and the second wear plate are both made of teflon plates or wear-resistant steel plates.
Preferably, a bearing is arranged between the rotating shaft and the main pushing sliding block.
Further preferably, the bearing is a rolling bearing or a sliding bearing.
Preferably, the hanging beam comprises a main beam and a guide beam connected to the top of the main beam, the guide rail sliding groove is formed between the guide beam and the main beam, the hanging rod is hinged to the middle of the main beam, the linear driving component is arranged at the top of the main beam, and the moving direction of the moving end of the linear driving component coincides with the arrangement direction of the guide rail sliding groove.
Further preferably, the guide beam comprises a left box girder and a right box girder arranged opposite to the left box girder, an accommodating space is formed between the left box girder and the right box girder, the accommodating space can be provided with the linear driving component, the top of the main girder is provided with at least one linear driving component, and the linear driving component is arranged on at least one side of the left box girder and/or at least one side of the right box girder.
Further preferably, the left box girder and the right box girder are connected into a whole through a plurality of connecting girders.
Further preferably, the guide beam is arranged in the middle of the main beam, at least one linear driving component is arranged at the top of the main beam, and the linear driving component is arranged on at least one side of the guide beam.
Further preferably, all the linear driving components are arranged at one end of the main beam or all the linear driving components are arranged at two ends of the main beam respectively.
When the linear driving components are arranged at one end of the main beam, all the linear driving components provide thrust or pull simultaneously; when the linear driving parts are respectively arranged at the two ends of the main beam, the linear driving part at one end provides thrust, and the linear driving part at the other end provides tension.
Preferably, the linear driving component is an oil cylinder system, an air cylinder system, a screw rod system, a gear rack system or a chain wheel and chain system, the telescopic end of the oil cylinder system or the air cylinder system is rotatably connected to the rotating shaft, and the moving component of the screw rod system, the gear rack system or the chain wheel and chain system is connected with the rotating shaft.
The invention also provides a swinging method of the fan blade lifting appliance swinging mechanism, which utilizes the fan blade lifting appliance swinging mechanism as described in any one of the above steps:
the moving end of the linear driving component drives the rotating shaft to move along a straight line, so that the main pushing sliding block moves in the main pushing sliding groove, meanwhile, the guide rail sliding block moves in the guide rail sliding groove, and the hanging beam and the hanging rod are pushed to rotate around a hinge joint, namely, the blades are driven to rotate in a vertical plane.
According to the swinging method of the fan blade lifting appliance swinging mechanism, the linear driving part, the rotating shaft, the main pushing sliding groove, the main pushing sliding block, the guide rail sliding groove and the guide rail sliding block form a connecting rod sliding block mechanism, and the linear driving part drives the main pushing sliding block and the guide rail sliding block to move in the corresponding sliding grooves, so that the suspension rod and the lifting beam are pushed to rotate around a hinged point, the purpose of changing the included angle between the suspension rod and the lifting beam is achieved, the adjustment of the inclination angle of a single-blade lifting appliance is realized, and the swinging function is realized; when the guide rail sliding block moves in the guide rail sliding groove, the guide rail sliding block is mainly acted by friction force along the sliding groove direction, and is mainly acted by component force of the main pushing sliding block in the direction along the sliding groove normal direction, the acting force is smaller, the main pushing sliding block is arranged in the main pushing sliding groove, and is mainly acted by the push-pull force of the linear driving part when reciprocating in the main pushing sliding groove, the force required for changing the size of the included angle between the suspension rod and the suspension beam is smaller, and the connecting rod sliding block mechanism can select a single linear driving part with small driving force, so that the connecting rod sliding block mechanism has good economy, reliability and safety.
The invention also provides a fan blade lifting appliance, which comprises a clamping mechanism, a cable wind mechanism and the fan blade lifting appliance swinging mechanism as described in any one of the above items, wherein the clamping mechanism and the cable wind mechanism are both arranged on the hanging beam, the clamping mechanism is used for clamping the blade, and the cable wind mechanism is used for anchoring the blade.
By adopting the fan blade lifting appliance provided by the invention, the swinging rotation between the lifting rod and the lifting beam can be realized by using the single linear driving part with small driving force through the connecting rod and sliding block mechanism, the size of an included angle between the lifting rod and the lifting beam is adjusted, and the lifting appliance has good economical efficiency, reliability and safety, and has the advantages of simple structure, convenience in use and good effect.
Preferably, the clamping mechanism is connected with an equipment platform, and the equipment platform is provided with power equipment and control equipment.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. according to the fan blade lifting appliance swinging mechanism and method, the linear driving part, the rotating shaft, the main pushing sliding groove, the main pushing sliding block, the guide rail sliding groove and the guide rail sliding block form a connecting rod sliding block mechanism, the linear driving part drives the main pushing sliding block and the guide rail sliding block to move in the corresponding sliding grooves, so that the suspension rod and the suspension beam are pushed to rotate around a hinged point, the purpose of changing the included angle between the suspension rod and the suspension beam is achieved, the adjustment of the inclination angle of a single-blade lifting appliance is realized, and the swinging function is realized; when the guide rail sliding block moves in the guide rail sliding groove, the guide rail sliding block is mainly acted by friction force along the sliding groove direction, and is mainly acted by component force of the main pushing sliding block in the direction along the sliding groove normal direction, the acting force is smaller, the main pushing sliding block is arranged in the main pushing sliding groove, and is mainly acted by the push-pull force of the linear driving part when reciprocating in the main pushing sliding groove, the force required for changing the size of the included angle between the suspension rod and the suspension beam is smaller, and the connecting rod sliding block mechanism can select a single linear driving part with small driving force, so that the connecting rod sliding block mechanism has good economy, reliability and safety;
2. according to the fan blade lifting appliance, through the connecting rod slider mechanism, the swinging rotation between the lifting rod and the lifting beam can be realized by using the single linear driving part with small driving force, the size of an included angle between the lifting rod and the lifting beam is adjusted, and the lifting appliance has good economical efficiency, reliability and safety, and is simple in structure, convenient to use and good in effect.
Drawings
Fig. 1 is a schematic front view of a swing mechanism of a fan blade hanger in embodiment 1;
FIG. 2 is a schematic view showing the operation of the swing mechanism of the fan blade hanger in the embodiment 1;
FIG. 3 is a schematic axial side view of a swing mechanism of a fan blade hanger in accordance with embodiment 1;
FIG. 4 is a schematic view showing a construction of a suspension lever according to embodiment 1;
fig. 5 is a schematic structural view of a guide beam in embodiment 1;
FIG. 6 is a schematic structural view of a link-slider mechanism in embodiment 1;
FIG. 7 is a layout view of the double cylinders on the inner side of the guide beam of the rocking mechanism in embodiment 2;
FIG. 8 is a layout view of the double cylinders on the outer side of the guide beam of the rocking mechanism in embodiment 3;
FIG. 9 is a schematic front view showing a swing mechanism of a fan blade hanger in accordance with embodiment 5;
fig. 10 is a schematic structural view of a fan blade hanger in embodiment 11.
The mark in the figure is: 01-blade, 1-suspension rod, 11-main push sliding groove, 12-main push sliding block, 121-first wear-resistant plate, 13-connecting hole, 14-hanging hole, 2-hanging beam, 21-guide sliding groove, 22-guide sliding block, 221-second wear-resistant plate, 23-guide beam, 231-left box beam, 232-right box beam, 233-connecting beam, 234-accommodating space, 24-main beam, 3-rotating shaft, 31-bearing, 41-oil cylinder, 42-telescopic rod, 43-pin shaft, 44-first mounting seat, 441-detachable support, 442-fixed support, 51-screw rod, 52-second mounting seat, 53-driving part, 6-clamping mechanism, 7-cable wind mechanism and 8-equipment platform.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
Example 1
As shown in fig. 1 to 6, the fan blade hanger swinging mechanism of the present invention includes a suspension rod 1 and a suspension beam 2 hinged thereto, wherein the suspension beam 2 carries a blade 01.
As shown in fig. 1 to fig. 3 and fig. 6, the linear driving component is a driving unit of the swing mechanism, in this embodiment, the linear driving component selects an oil cylinder system and is disposed on the hanging beam 2, the oil cylinder system includes an oil cylinder 41 having a matching telescopic rod 42, an end of the telescopic rod 42 is rotatably connected to the rotating shaft 3, the oil cylinder 41 drives the telescopic rod 42 to move so as to drive the rotating shaft 3 to reciprocate along a straight line, a guide rail sliding groove 21 is disposed along a length direction of the hanging beam 2, the oil cylinder 41 drives the rotating shaft 3 to move along the guide rail sliding groove 21, the rotating shaft 3 is rotatably connected to the main push sliding block 12 and the guide rail sliding block 22, the movement of the rotating shaft 3 drives the guide rail sliding block 22 to move along the guide rail sliding groove 21, the main push sliding block 12 moves along the main push sliding groove 11, the main push sliding groove 11 and the guide rail sliding groove 21 are arranged in a crossed manner, so as to push a change an included angle between the hanging rod 1 and the hanging beam 2, thereby realizing swing of the hanger and adjusting an included angle.
As shown in fig. 6, the middle part of the rotating shaft 3 is connected with a telescopic rod 42, two guide rail sliding blocks 22 and two main pushing sliding blocks 12 are symmetrically arranged at two sides of the telescopic rod 42, and the main pushing sliding blocks 12 are positioned at the outer side.
As shown in fig. 1 to 3 and 6, the outer wall of the cylinder body of the oil cylinder 41 is provided with a pin shaft 43 for installation, the pin shaft 43 and the outer wall of the cylinder body are of an integral structure, the pin shaft 43 is hinged to a first installation seat 44, the first installation seat 44 is arranged on the hanging beam 2, and the oil cylinder 41 can rotate around the pin shaft 43, so that the action of bending moment when the oil cylinder 41 works is reduced.
As shown in fig. 1 and 2, the first mounting seat 44 includes a detachable support 441 and a fixed support 442, the fixed support 442 is welded on the top of the hanging beam 2, the detachable support 441 is connected to the top of the fixed support 442, the detachable support 441 and the fixed support 442 are connected by a bolt or a bolt, and the abutting surface of the detachable support 441 and the fixed support 442 is parallel to the central line of the oil cylinder 41 when the oil cylinder is mounted.
As shown in fig. 1 to 4 and 6, the suspension rod 1 is a hollow box-shaped branched structure, a lifting hole 14 is provided at the top of the suspension rod 1, the lifting hole 14 is used for connecting a sling of a hoisting apparatus, a connecting hole 13 is provided at the bottom of the suspension rod 1, two fork edges are respectively disposed at two sides of the suspension beam 2, the lower portions of the fork edges are hinged to the middle portion of the suspension beam 2 through the connecting hole 13, a main push chute 11 is provided at each fork edge, the main push chute 11 is provided along the length direction of the suspension rod 1, and a main push slider 12 is slidably fitted in the main push chute 11, wherein the front view of the suspension rod 1 is in a convoluted shape, i.e., an included angle α is provided between the connecting line of the lifting hole 14 and the connecting hole 13 and the axis of the main push chute 11, the angle α is in a range of 5 ° to 45 °, in this embodiment, preferably, the angle α is in a range of 10 ° to 20 °, and most preferably, 15 ° to 20 ° as shown in the following calculation formula.
α＝|(|θ 1 |-|θ 2 |)/2|
Wherein, theta 1 And theta 2 The included angles between the connecting lines of two hinge points on the suspension rod 1 and the central axis of the suspension beam 2 under the extension and contraction limit strokes of the linear driving part are respectively set, and the setting of alpha mainly considers that the suspension point is matched with the gravity center of the whole suspension appliance and the lifted blade 01, so that the sliding stroke of the main push sliding block 12 and the guide rail sliding block 22 along the guide rail sliding groove 21 can be reduced, the structure of the fan blade suspension appliance swing mechanism is more compact, the size and the weight of the guide rail sliding groove 21 are reduced, and the optimal matching of force and stroke is achieved.
As shown in fig. 6, the two faces of the main push slider 12, which are matched with the main push sliding groove 11, are respectively provided with a first wear-resistant plate 121, the two faces of the guide rail slider 22, which are matched with the guide rail sliding groove 21, are respectively provided with a second wear-resistant plate 221, both the first wear-resistant plate 121 and the second wear-resistant plate 221 are made of teflon plates or wear-resistant steel plates, a bearing 31 is arranged between the rotating shaft 3 and the main push slider 12, and the bearing 31 is a rolling bearing or a sliding bearing.
As shown in fig. 1 to 3, the hanging beam 2 includes a main beam 24 and a guide beam 23 connected to the top of the main beam, a guide rail sliding groove 21 is arranged between the guide beam 23 and the main beam 24, the guide beam 23 is welded on the main beam 24, the suspension rod 1 is hinged to the middle of the main beam 24, at least one oil cylinder 41 is arranged on the top of the main beam 24, and the moving direction of the telescopic rod 42 coincides with the arrangement direction of the guide rail sliding groove 21.
As shown in fig. 1 to fig. 3 and fig. 5, the guide beam 23 includes a left box girder 231 and a right box girder 232 disposed opposite to the left box girder 231, an accommodation space 234 is provided between the left box girder 231 and the right box girder 232, an oil cylinder 41 can be disposed in the accommodation space 234, the left box girder 231 and the right box girder 232 are connected into a whole through a plurality of connection beams 233, and a welding or bolting manner can be adopted, the oil cylinder 41 is disposed on at least one side of the left box girder 231 and/or at least one side of the right box girder 232, in this embodiment, only one oil cylinder 41 is disposed in the accommodation space 234, in fact, the oil cylinders 41 can be disposed on three positions of both sides of the left box girder 231 and both sides of the right box girder 232, and when there are a plurality of the oil cylinders 41, the oil cylinders can be disposed at one end of the main girder 24 to provide a pushing force or a pulling force at the same time, or the oil cylinders 41 disposed at both ends of the main girder 24 respectively, and when the oil cylinder 41 at one end provides a pushing force, the oil cylinder 41 at the other end provides a pulling force.
According to the fan blade lifting appliance swinging mechanism, a connecting rod slider mechanism is formed by the oil cylinder 41, the rotating shaft 3, the main pushing sliding groove 11, the main pushing slider 12, the guide rail sliding groove 21 and the guide rail slider 22, the oil cylinder 41 drives the main pushing slider 12 and the guide rail slider 22 to move in the corresponding sliding grooves, so that the lifting rod 1 and the lifting beam 2 are pushed to rotate around a hinged point, the purpose of changing the included angle between the lifting rod 1 and the lifting beam 2 is achieved, the adjustment of the inclination angle of a single-blade lifting appliance is realized, and the swinging function is realized; when the guide rail slide block 22 moves in the guide rail slide groove 21, the guide rail slide block is mainly acted by friction force along the slide groove direction, and is mainly acted by component force of the main push slide block 12 in the direction along the normal direction of the slide groove, the acting force is smaller, the main push slide block 12 is arranged in the main push slide groove 11, and is mainly acted by push-pull force of the oil cylinder 41 when reciprocating in the main push slide groove 11, so that the force required for changing the included angle between the suspension rod 1 and the suspension beam 2 is smaller, and the connecting rod slide block mechanism can select a single oil cylinder 41 with small driving force, and has good economy, reliability and safety.
Example 2
The fan blade hanger swing mechanism of the present invention is different from embodiment 1 in that in this embodiment, a plurality of oil cylinders 41 are disposed on the top of the main beam 24, all the telescopic rods 42 are disposed in the accommodating space 234, all the oil cylinders 41 are located at one end of the main beam 24 (as shown in fig. 7), and provide a pushing force or a pulling force at the same time, or the oil cylinders 41 (not shown) are disposed at both ends of the main beam 24, and the oil cylinder 41 at one end provides a pushing force while the oil cylinder 41 at the other end provides a pulling force.
Example 3
The fan blade hanger swing mechanism of the present invention is different from embodiment 1 in that in this embodiment, the guide beam 23 is an integral structure and is disposed along a central line of the main beam 24, at least one of the positions of the main beam 24 on both sides of the guide beam 23 is used to dispose at least one oil cylinder 41, all the oil cylinders 41 are located at one end of the main beam 24 (as shown in fig. 8) and provide thrust or provide tension at the same time, or the two ends of the main beam 24 are respectively provided with an oil cylinder 41 (not shown), and the oil cylinder 41 at one end provides thrust while the oil cylinder 41 at the other end provides tension.
Example 4
The fan blade hanger swing mechanism is different from the fan blade hanger swing mechanisms in the embodiments 1 to 3 in that in the embodiment, an air cylinder system is adopted to replace an oil cylinder system (not shown) in a linear driving part, and the connection and arrangement mode of the air cylinder system is unchanged.
Example 5
As shown in fig. 9, the fan blade hanger swing mechanism according to the present invention is different from embodiments 1 to 4 in that in this embodiment, a lead screw system is used to replace an oil cylinder system or an air cylinder system in a linear driving component.
Specifically, the screw system includes a screw 51 and a driving part 53, the driving part 53 includes a motor (in this embodiment, the motor is a common motor), a speed reducer and a coupling, the screw 51 is fixed on the top surface of the main beam 24 through a second mounting seat 52, the driving part 53 is also fixed on the top surface of the main beam 24, the motor is connected with the speed reducer, the speed reducer is connected with the coupling, the coupling is connected with the screw 51, the screw 51 is in threaded connection with a screw nut, the screw nut is used as a moving part, that is, the rotating shaft 3 is rotatably connected with the screw nut, the screw 51 can adopt a ball screw, the motor can adopt a servo motor, and a bearing is arranged between the second mounting seat 52 and the screw 51.
In another specific mode, the rotating shaft 3 is directly used as a moving part, a threaded through hole is arranged along the radial direction of the rotating shaft 3, the screw rod 51 is in threaded connection with the rotating shaft 3, and the rotating of the screw rod 51 enables the rotating shaft 3 to move along the screw rod.
In this embodiment, the motor can also adopt a variable frequency motor, and when the variable frequency motor is adopted, a speed governor can be reduced, and the motor is directly connected with the coupler.
The motor rotates to drive the screw rod 51 to rotate, and the screw rod 51 drives the moving part to move along the screw rod 51, so that the rotating shaft 3 can be driven to do linear reciprocating motion.
Example 6
The fan blade hanger swing mechanism of the present invention is different from the embodiments 1 to 5 in that in this embodiment, a rack and pinion system is used as a linear driving component to replace an oil cylinder system or a lead screw system (not shown) therein.
Specifically, the rack-and-pinion system includes a gear, a rack engaged with the gear, and a motor (in this embodiment, the motor is a common motor), the gear and the motor are disposed on the main beam 24, the rack is slidably connected to the main beam 24, the motor is connected to the speed reducer, the speed reducer is connected to the shaft coupling, the shaft coupling is connected to a shaft of the gear, the rack is connected to the moving member, the moving member is rotatably connected to the rotating shaft 3, and the motor can be a servo motor.
In this embodiment, the motor can also adopt a variable frequency motor, and when the variable frequency motor is adopted, a speed governor can be reduced, and the motor is directly connected with the coupler.
The gear is driven to rotate through the rotation of the motor, the gear drives the rack to do linear motion, and therefore the rotating shaft 3 can be driven to do linear reciprocating motion.
Example 7
The fan blade hanger swing mechanism of the present invention is different from the embodiments 1 to 6 in that in this embodiment, a chain wheel and chain system is used as a linear driving component to replace an oil cylinder system, a lead screw system, or a rack and pinion system (not shown).
The chain wheel and chain system comprises a chain wheel, a chain matched with the chain wheel and a motor (the motor is a common motor in the embodiment), the chain wheel and the motor are arranged on the main beam 24, the motor is connected with a speed reducer, the speed reducer is connected with a coupler, the coupler is connected with a shaft of the chain wheel, the chain is directly connected with the rotating shaft 3, and the motor can adopt a servo motor.
In this embodiment, the motor may also be a variable frequency motor, and when the variable frequency motor is used, the speed reducer may be eliminated, and the motor is directly connected to the coupling.
The chain wheel is driven to rotate by the rotation of the motor, and the chain wheel drives the chain to rotate, so that the rotating shaft 3 can be driven to do linear reciprocating motion.
Example 8
The fan blade hanger rocking mechanism according to the present invention is different from embodiments 1 to 7 in that in this embodiment, a linear driving member is provided on a boom 1 (not shown).
Example 9
The fan blade hanger swing mechanism according to the present invention is different from embodiments 1 to 7 in that in this embodiment, the boom 1 and the suspension beam 2 are provided with linear driving members (not shown), respectively.
Example 10
The swinging method of the fan blade hanger swinging mechanism provided by the invention utilizes the fan blade hanger swinging mechanism in any one of the embodiments 1 to 9, and comprises the following steps:
the moving end of the linear driving part drives the rotating shaft 3 to move along a straight line, so that the main push sliding block 12 moves in the main push sliding groove 11, and meanwhile, the guide rail sliding block 22 moves in the guide rail sliding groove 21, and the hanging beam 2 and the hanging rod 1 are pushed to rotate around a hinge joint, namely, the blade 01 is driven to rotate in a vertical plane.
According to the swinging method of the fan blade lifting appliance swinging mechanism, a connecting rod slider mechanism is formed by the linear driving part, the rotating shaft 3, the main pushing chute 11, the main pushing slider 12, the guide rail chute 21 and the guide rail slider 22, the main pushing slider 12 and the guide rail slider 22 are driven to move in the corresponding chutes by the linear driving part, so that the suspension rod 1 and the lifting beam 2 are pushed to rotate around a hinged point, the purpose of changing the included angle between the suspension rod 1 and the lifting beam 2 is achieved, the adjustment of the inclination angle of the single-blade lifting appliance is realized, and the swinging function is realized; when the guide rail sliding block 22 moves in the guide rail sliding groove 21, the guide rail sliding block is mainly acted by friction force along the sliding groove direction, and is mainly acted by component force of the main pushing sliding block 12 in the direction along the sliding groove normal direction, the acting force is small, the main pushing sliding block 12 is installed in the main pushing sliding groove 11, and is mainly acted by the push-pull force of the linear driving part when reciprocating in the main pushing sliding groove 11, the force required for changing the size of the included angle between the suspension rod 1 and the suspension beam 2 is small, and the connecting rod sliding block mechanism can be selected from a single linear driving part with small driving force, so that the connecting rod sliding block mechanism has good economy, reliability and safety.
Example 11
The fan blade lifting appliance comprises a clamping mechanism 6, a cable wind mechanism 7, an equipment platform 8 and a fan blade lifting appliance swinging mechanism as in any one of embodiments 1 to 9, wherein the clamping mechanism 6 and the cable wind mechanism 7 are both arranged on a hanging beam 2, the clamping mechanism 6 is connected with the equipment platform 8, the clamping mechanism 6 is used for clamping a blade 01, the cable wind mechanism 7 is used for anchoring the blade 01, and power equipment and control equipment are arranged on the equipment platform 8.
According to the fan blade lifting appliance, through the connecting rod slider mechanism, the swinging rotation between the lifting rod 1 and the lifting beam 2 can be realized by using a single linear driving part with small driving force, the size of an included angle between the lifting rod 1 and the lifting beam 2 is adjusted, and the lifting appliance has good economical efficiency, reliability and safety, and is simple in structure, convenient to use and good in effect.
The above description is intended to be illustrative of the preferred embodiment of the present invention and should not be taken as limiting the invention, but rather, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.
Claims (15)
1. The utility model provides a fan blade hoist wabbler mechanism, includes jib (1) and rather than articulated hanging beam (2), its characterized in that, be equipped with on jib (1) mainly and push away spout (11), sliding fit has mainly to push away slider (12) in mainly pushing away spout (11), be equipped with guide rail spout (21) on hanging beam (2), sliding fit has guide rail slider (22) in guide rail spout (21), mainly push away spout (11) with guide rail spout (21) cross arrangement, jib (1) and/or be equipped with linear drive part on hanging beam (2), linear drive part's motion end rotates and is connected with pivot (3), and can drive pivot (3) are along linear reciprocating motion, pivot (3) rotate to be connected mainly push away slider (12) with guide rail slider (22).
2. The swing mechanism of a fan blade hanger according to claim 1, wherein the moving end of the linear driving component drives the rotating shaft (3) to move linearly in a direction parallel to the arrangement direction of the main push chute (11) or the arrangement direction of the guide rail chute (21).
3. The swing mechanism of a fan blade hanger according to claim 1, wherein the main push slider (12) is provided with a first wear plate (121) on each of the two faces that fit the main push chute (11), and the guide rail slider (22) is provided with a second wear plate (221) on each of the two faces that fit the guide rail chute (21).
4. Fan blade spreader rocking mechanism according to claim 1, wherein a bearing (31) is provided between the shaft (3) and the main push slider (12).
5. The fan blade hanger rocking mechanism according to claim 1, wherein the hanging beam (2) comprises a main beam (24) and a guide beam (23) connected to the top of the main beam, the guide rail sliding groove (21) is arranged between the guide beam (23) and the main beam (24), the hanging rod (1) is hinged to the middle of the main beam (24), the linear driving component is arranged at the top of the main beam (24), and the moving direction of the moving end of the linear driving component coincides with the arrangement direction of the guide rail sliding groove (21).
6. Fan blade spreader rocking mechanism according to claim 5, wherein the guide beam (23) comprises a left box beam (231) and a right box beam (232) arranged opposite thereto, a receiving space (234) being provided between the left box beam (231) and the right box beam (232), the receiving space (234) being capable of accommodating the linear drive means, the main beam (24) being provided with at least one of the linear drive means on top, at least one side of the left box beam (231) and/or at least one side of the right box beam (232) being provided with the linear drive means.
7. The wind turbine blade hanger rocking mechanism according to claim 6, wherein the left box beam (231) and the right box beam (232) are connected together by a plurality of connecting beams (233).
8. The swing mechanism of a fan blade hanger according to claim 5, wherein the guide beam (23) is arranged in the middle of the main beam (24), at least one linear driving component is arranged on the top of the main beam (24), and the linear driving component is arranged on at least one side of the guide beam (23).
9. The fan blade hanger wobble mechanism of claim 5, wherein all of the linear drive components are located at one end of the main beam (24) or all of the linear drive components are located at each end of the main beam (24).
10. The fan blade hanger wabbler mechanism of claim 1, wherein a hanging hole (14) is provided at the top of the boom (1), a connecting hole (13) is provided at the bottom of the boom (1), the boom (1) and the hanging beam (2) are hinged through the connecting hole (13), an included angle α is provided between the connecting line of the connecting hole (13) and the hanging hole (14) and the axis of the main push chute (11), and the angle α is in the range of 5 ° to 45 °.
11. A fan blade spreader rocking mechanism according to claim 10, wherein the angle α is in the range 10 ° -20 °.
12. A fan blade spreader rocking mechanism according to claim 11, wherein the angle α is in the range 15 ° -20 °.
13. The fan blade sling rocking mechanism according to any one of claims 1 to 12, wherein the linear driving member is an oil cylinder system, an air cylinder system, a lead screw system, a rack and pinion system or a chain and sprocket system, the telescopic end of the oil cylinder system or the air cylinder system is rotatably connected to the rotating shaft (3), and the moving member of the lead screw system, the rack and pinion system or the chain and sprocket system is connected to the rotating shaft (3).
14. A method of rocking a fan blade hanger rocking mechanism, using a fan blade hanger rocking mechanism as claimed in any one of claims 1 to 13, the method comprising the steps of:
the moving end of the linear driving part drives the rotating shaft (3) to move along a straight line, so that the main pushing sliding block (12) moves in the main pushing sliding groove (11), and meanwhile, the guide rail sliding block (22) moves in the guide rail sliding groove (21), and the hanging beam (2) and the hanging rod (1) are pushed to rotate around a hinged point.
15. A fan blade sling, comprising a gripping mechanism (6), a cable mechanism (7) and a fan blade sling rocking mechanism according to any one of claims 1-13, the gripping mechanism (6) and the cable mechanism (7) being both arranged on the lifting beam (2), the gripping mechanism (6) being adapted to grip a blade (01), the cable mechanism (7) being adapted to anchor the blade (01).
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| CN202210576082.9A CN115140651A (en) | 2022-05-25 | 2022-05-25 | Fan blade lifting appliance swinging mechanism and method |
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| CN202210576082.9A CN115140651A (en) | 2022-05-25 | 2022-05-25 | Fan blade lifting appliance swinging mechanism and method |
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