CN220449517U - Fan blade hoisting device - Google Patents

Abstract

The application provides a fan blade hoist device, include: a main hanger; the limiting mechanism is arranged in the middle of the main hanging frame in a lifting manner and is configured to limit the top of the rotating part of the fan blade; the supporting mechanism is movably arranged below the limiting mechanism and is configured to support the bottom of the rotating part; the clamping mechanisms are arranged around the limiting mechanisms, each clamping mechanism is connected with the main hanging bracket, and the clamping mechanisms are used for clamping a plurality of blades of the fan blade in one-to-one correspondence. The fan blade is fixed through the fan blade hoisting device, repeated binding of the fan blade is not needed in the process of hoisting the fan blade, the hoisting efficiency of the fan blade is improved, and meanwhile, the labor cost can be saved.

Description

Fan blade hoisting device

Technical Field

The application relates to the technical field of large hoisting equipment, in particular to a fan blade hoisting device.

Background

In the wind power generation process, the fan blades are always exposed in the natural environment, so that the fan blades are required to be maintained regularly, when the fan blades have a large problem, the fan blades are required to be disassembled and maintained and then are required to be assembled again or replaced, and due to the large mass of the fan blades, a hoisting tool is required to be used in the process of disassembly or assembly.

At present, some fan blades comprise a rotating part and two blades positioned at two sides of the rotating part, and because the blades are of long-strip-shaped structures, a plurality of hoisting points are required to be arranged on the fan blades when the fan blades are hoisted, so that the stability of the fan blades in the hoisting process is ensured.

However, the hoisting points on the fan blades need to be manually and repeatedly bound and fixed, and the hoisting efficiency is low.

Disclosure of Invention

Based on this, this application provides a fan blade hoist device to the hoist and mount point on the fan blade needs artifical repeated ligature fixed in solving among the correlation technique, hoist and mount inefficiency's problem.

The application provides a fan blade hoist device, include:

a main hanger;

the limiting mechanism is arranged in the middle of the main hanging frame in a lifting manner and is configured to limit the top of the rotating part of the fan blade;

the supporting mechanism is movably arranged below the limiting mechanism and is configured to support the bottom of the rotating part;

the clamping mechanisms are arranged around the limiting mechanisms, each clamping mechanism is connected with the main hanging bracket, and the clamping mechanisms are used for clamping a plurality of blades of the fan blade in one-to-one correspondence.

In one possible implementation manner, the limiting mechanism includes an adjusting rod, a sleeve, a limiting piece, a first guiding piece and a sliding piece, the adjusting rod extends along a vertical direction, one end of the adjusting rod is rotationally connected with the main hanging bracket, the other end of the adjusting rod stretches into the sleeve and is in threaded connection with the sleeve, the limiting piece is mounted at the bottom end of the sleeve, the limiting piece is configured to prop against the top of the rotating part, the first guiding piece is mounted on the main hanging bracket, the extending direction of the first guiding piece is parallel to the extending direction of the adjusting rod, the sliding piece is mounted on the sleeve and is in sliding connection with the first guiding piece, and the sliding piece is configured to slide along the extending direction of the first guiding piece.

In one possible implementation, a drive block is mounted on the slider, the drive block being configured to drive the movement of the support mechanism relative to the main boom.

In one possible implementation, the first guide member is a guide rail mounted on the main hanger, the guide rail is provided with a chute extending along the vertical direction, and a notch is arranged on the side wall of the guide rail facing one side of the sleeve;

the slider includes first linkage segment and second linkage segment, and second linkage segment slidable mounting is in the inside of spout, and first end and the sleeve pipe connection of first linkage segment, the second end of first linkage segment pass the breach and is connected with the first end of second linkage segment, and the drive block is installed in the second end of second linkage segment.

In one possible implementation, the supporting mechanism includes a housing and a supporting rod, the housing is mounted on a side wall of the guide rail facing the sleeve, the supporting rod penetrates through the housing and the side wall of the guide rail respectively, at least one of one end of the supporting rod extending into the chute and the driving block is provided with a driving surface, and the driving surface is configured to drive the supporting rod to move.

In one possible implementation, the supporting mechanism further includes an elastic member, one end of the elastic member is connected with the supporting rod, and the elastic member is configured to drive the supporting rod to abut against the driving block.

In one possible implementation manner, the support rod is provided with a limiting plate, the limiting plate is located in the shell, the elastic piece is sleeved on the support rod, one end of the elastic piece abuts against the limiting plate, and the other end of the elastic piece abuts against the shell.

In one possible implementation manner, the number of the first guide piece, the sliding piece, the driving blocks and the supporting mechanisms is multiple, the sliding pieces are arranged around the sleeve, the driving blocks are arranged on the sliding pieces in a one-to-one correspondence manner, each driving block is configured to drive the corresponding supporting mechanism to move relative to the main hanging frame, and the supporting mechanisms are configured to jointly support the rotating part.

In one possible implementation manner, the clamping mechanism comprises a second guide piece and a plurality of clamping blocks, wherein a bayonet for extending the edge of the blade is arranged on each clamping block, the second guide piece penetrates through the plurality of clamping blocks, each clamping block can move along the extending direction of the second guide piece, and each clamping block is connected with the main hanging bracket through a hanging rope.

In one possible implementation, the second guide is a screw, and each clamping block is in threaded connection with the screw.

The application provides a fan blade hoist device, including main gallows, stop gear, supporting mechanism and fixture. The limiting mechanism is installed in the middle of the main hanging frame in a lifting mode, the supporting mechanism is movably installed below the limiting mechanism, and the rotating portion of the fan blade can be fixed through cooperation between the limiting mechanism and the supporting mechanism. The clamping mechanisms are arranged around the limiting mechanism, and a plurality of blades of the fan blade can be fixed through the clamping mechanisms. Therefore, in the process of hoisting the fan blade, the fan blade does not need to be repeatedly bound, the hoisting efficiency of the fan blade is improved, and meanwhile, the labor cost can be saved.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief description will be given below of the drawings that are needed in the embodiments or the prior art descriptions, and it is obvious that the drawings in the following description are some embodiments of the present application, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a fan blade lifting device provided in an embodiment of the present application;

FIG. 2 is an enlarged schematic view of a portion of FIG. 1 at A;

fig. 3 is a partially enlarged schematic view at B in fig. 1.

Reference numerals illustrate:

100-main hanging frame;

200-a limiting mechanism; 210-adjusting the rod; 211-thread segments; 220-sleeve; 230-a limiting piece; 240-guide rail; 241-chute; 242-gap; 250-slide; 251-first connecting section; 252-a second connection section; 260-a drive block; 261-driving surface;

300-a supporting mechanism; 310-a housing; 320-supporting rods; 321-limiting plates; 330-an elastic member;

400-clamping mechanism; 410-screw; 420-clamping blocks;

500-fan blades; 510—a rotating part; 520-blade.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present application more apparent, the technical solutions in the embodiments of the present application will be described in more detail below with reference to the accompanying drawings in the preferred embodiments of the present application. In the drawings, the same or similar reference numerals refer to the same or similar components or components having the same or similar functions throughout. The described embodiments are some, but not all, of the embodiments of the present application. The embodiments described below by referring to the drawings are exemplary and intended for the purpose of explaining the present application and are not to be construed as limiting the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure. Embodiments of the present application are described in detail below with reference to the accompanying drawings.

In the description of the present application, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, indirectly connected through an intermediary, in communication between two elements, or in an interaction relationship between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In the description of the present application, it should be understood that the terms "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate an orientation or a positional relationship based on the drawings, which are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices 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 application.

The terms "first," "second," "third" (if any) in the description and claims of the present application and in the above-described figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order.

Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or display that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or display.

In the prior art, in the process of hoisting the fan blade, a plurality of hoisting points are required to be arranged on the fan blade due to the structural limitation of the fan blade. In order to ensure the stability of the fan blade in the hoisting process, hoisting points on the fan blade need to be manually and repeatedly bound, so that the overall efficiency of the fan blade hoisting operation is low and the labor cost is high.

Through repeated thinking and verification, the inventor finds that if a device is designed to fix the fan blade to be hoisted, after the device is fixed with the fan blade, the hoisting equipment can directly hoist the device to ensure the stability of the fan blade in the hoisting process. The device comprises a lifting limiting mechanism and a movable supporting mechanism, and the rotating part in the middle of the fan blade can be fixed through the cooperation between the limiting mechanism and the supporting mechanism. Meanwhile, the device is also provided with a clamping mechanism, and the blades of the fan blade are clamped through the clamping mechanism so as to fix the fan blade. Therefore, in the process of hoisting the fan blade, the fan blade does not need to be repeatedly bound, so that the hoisting efficiency of the fan blade is improved, and meanwhile, the labor cost is saved.

In view of this, the inventors designed a fan blade lifting device, in which a rotating portion of a fan blade is fixed by a limiting mechanism and a supporting mechanism, and a plurality of fan blades of the fan blade are fixed by a plurality of clamping mechanisms. In the process of hoisting the fan blade, firstly, the fan blade hoisting device is moved to the upper side of the fan blade to be hoisted, a plurality of clamping mechanisms are used for clamping a plurality of fan blades of the fan blade, the hoisting equipment is used for driving the fan blade hoisting device and the fan blade to ascend for a distance, the limiting mechanism is adjusted to enable the limiting mechanism to limit the top of the fan blade rotating part, and the supporting mechanism is adjusted to enable the supporting mechanism to support the bottom of the rotating part. The fan blade can be fixed through the fan blade lifting device, and repeated binding of the fan blade is not needed.

The following describes in detail the technical scheme of the fan blade lifting device provided in the embodiment of the application with reference to the accompanying drawings.

Fig. 1 is a schematic structural diagram of a fan blade lifting device provided in an embodiment of the present application, and referring to fig. 1, the fan blade lifting device provided in the present application includes a main hanger 100, a limiting mechanism 200, a supporting mechanism 300, and a clamping mechanism 400. The limiting mechanism 200 is installed in the middle of the main hanger 100 in a liftable manner, and the limiting mechanism 200 is configured to limit the top of the rotating portion 510 of the fan blade 500. The supporting mechanism 300 is movably installed below the limiting mechanism 200, and the supporting mechanism 300 is configured to support the bottom of the rotating portion 510. The number of the clamping mechanisms 400 is plural, the plurality of clamping mechanisms 400 are arranged around the limiting mechanism 200, each clamping mechanism 400 is connected with the main hanging bracket 100, and the plurality of clamping mechanisms 400 are used for clamping the plurality of blades 520 of the fan blade 500 in a one-to-one correspondence manner.

In this embodiment, the fan blade 500 has two blades 520, and the two blades 520 are respectively mounted on two opposite sides of the rotating portion 510. For example, the main hanger 100 may be a cross beam, and an extending direction of the cross beam is parallel to a length direction of the fan blade 500. In other embodiments, the number of blades 520 of the fan blade 500 may be greater than two, for example, three or four, and the main hanger 100 may have a disk structure.

The number of the clamping mechanisms 400 is the same as the number of the blades 520 of the fan blade 500, and the clamping mechanisms 400 can clamp the sides of the blades 520 to fix the blades 520 of the fan blade 500. In one possible implementation, each clamping mechanism 400 may be connected to the main hanger 100 by a hanger rope.

It can be appreciated that, when the end of the limiting mechanism 200 facing the supporting mechanism 300 is lowered relative to the supporting mechanism 300, the end of the limiting mechanism 200 facing the supporting mechanism 300 can abut against the top of the rotating portion 510, so that the limiting mechanism 200 can limit the top of the rotating portion 510. The support mechanism 300 can move relative to the main hanger 100, that is, the support mechanism 300 can move to the lower side of the rotating portion 510 to support the bottom of the rotating portion 510, and the support mechanism 300 can also move to a position separated from the rotating portion 510. After the limiting mechanism 200 limits the top of the rotating portion 510 and the supporting mechanism 300 supports the bottom of the rotating portion 510, the rotating portion 510 can be fixed, that is, the rotating portion 510 is simultaneously subjected to downward pressure applied by the limiting mechanism 200 and upward supporting force applied by the supporting mechanism 300, so that stability of the fan blade 500 in the hoisting process is ensured.

The fan blade lifting device comprises a main lifting frame 100, a limiting mechanism 200, a supporting mechanism 300 and a clamping mechanism 400. The limiting mechanism 200 is installed in the middle of the main hanging frame 100 in a lifting manner, the supporting mechanism 300 is movably installed below the limiting mechanism 200, and the rotating portion 510 of the fan blade 500 can be fixed through cooperation between the limiting mechanism 200 and the supporting mechanism 300. The plurality of clamping mechanisms 400 are disposed around the limiting mechanism 200, and the plurality of blades 520 of the fan blade 500 can be fixed by the plurality of clamping mechanisms 400. Like this, fan blade hoist device can fix a plurality of points on the fan blade 500, avoids fan blade 500 to rock at the in-process of hoist and mount probably that appears, in the in-process of hoist and mount fan blade 500, need not carry out the ligature repeatedly to fan blade 500, has improved the hoist and mount efficiency of fan blade 500, can save the cost of labor simultaneously.

Fig. 2 is an enlarged partial schematic view at a in fig. 1. As shown in FIG. 2, in one embodiment, the spacing mechanism 200 includes an adjustment lever 210, a sleeve 220, a spacing member 230, a first guide member, and a slider 250. The adjusting lever 210 extends in a vertical direction, one end of the adjusting lever 210 is rotatably connected with the main hanger 100, and the other end of the adjusting lever 210 extends into the inside of the sleeve 220 and is screw-connected with the sleeve 220. The stopper 230 is mounted to the bottom end of the sleeve 220, and the stopper 230 is configured to abut against the top of the rotating portion 510. The first guide is mounted on the main hanger 100, and an extension direction of the first guide is parallel to an extension direction of the adjustment lever 210. The slider 250 is mounted on the sleeve 220 and slidably coupled to the first guide, and the slider 250 is configured to slide along an extending direction of the first guide.

Illustratively, the top end of the adjustment lever 210 may be rotatably mounted on the main hanger 100 through a bearing, and the axial direction of the adjustment lever 210 extends in the vertical direction. In one possible implementation, the bottom end of the adjusting rod 210 is provided with a threaded section 211, and correspondingly, the inner circumferential surface of the sleeve 220 is provided with an internal thread, and the threaded section 211 extends into the interior of the sleeve 220 and is in threaded connection with the sleeve 220. Fig. 1 shows that the stopper 230 may be an arc-shaped cover having an arc shape matching the arc shape of the top of the rotating part 510, and an exemplary cross-sectional shape of the arc-shaped cover may be a semi-oval shape. The arc cover is used as the limiting piece 230, so that stability of the fan blade 500 can be ensured when the limiting piece 230 is propped against the top of the rotating portion 510, and the rotating portion 510 is prevented from moving relative to the limiting piece 230 in the horizontal direction.

It will be appreciated that the first guide member may serve as a guide and limit for the sliding member 250 and the sleeve 220, so that when the adjusting rod 210 rotates relative to the main hanger 100, the sleeve 220 is prevented from following the rotation of the adjusting rod 210, and under the action of the screw thread, the sleeve 220 may move relative to the adjusting rod 210 along the axial direction of the adjusting rod 210. The sliding member 250 is slid on the first guide member when the sleeve 220 moves in the axial direction of the adjustment lever 210.

With this structure, when the operator rotates the adjustment lever 210, the limiting member 230 can be driven to rise or fall, so that the limiting member 230 abuts against the top of the rotating portion 510 or is separated from the top of the rotating portion 510.

In other embodiments, the limiting member 230 may be connected to the main hanger 100 through a telescopic member such as an electric cylinder or an air cylinder, etc., and the limiting member 230 is driven to be lifted and lowered by the electric cylinder or the air cylinder.

Fig. 3 is an enlarged view of a portion of fig. 1B, and as shown in fig. 1-3, in one particular embodiment, a drive block 260 is mounted to the slider 250, the drive block 260 being configured to drive the movement of the support mechanism 300 relative to the main hanger 100.

The driving block 260 may be fastened, adhered or fastened by a fastener, and the like, and fixed at the bottom end of the sliding member 250, and when the sliding member 250 drives the driving block 260 to descend, the driving block 260 may drive the supporting mechanism 300 to move relative to the main hanger 100.

In this structure, when the worker rotates the adjusting lever 210 to drive the sleeve 220 and the sliding member 250 to descend, the driving block 260 on the sliding member 250 can drive the supporting mechanism 300 to move relative to the main hanger 100. In the process of hoisting the fan blade 500, the supporting mechanism 300 and the limiting mechanism 200 do not need to be respectively adjusted, so that the hoisting efficiency of the fan blade 500 is improved.

In a more specific embodiment, as shown in fig. 1-3, the first guide member is a guide rail 240 mounted on the main hanger 100, the guide rail 240 is provided with a slide groove 241 extending in a vertical direction, and a notch 242 is provided on a side wall of the guide rail 240 facing the sleeve 220. The sliding member 250 includes a first connecting section 251 and a second connecting section 252, the second connecting section 252 is slidably mounted in the sliding groove 241, the first end of the first connecting section 251 is connected with the sleeve 220, the second end of the first connecting section 251 passes through the notch 242 and is connected with the first end of the second connecting section 252, and the driving block 260 is mounted at the second end of the second connecting section 252.

Wherein the length of the notch 242 is not less than the sliding travel of the slider 250 to avoid interference between the slider 250 and the guide rail 240. In one possible implementation, the extension direction of the first connection section 251 is perpendicular to the extension direction of the second connection section 252, that is, the slider 250 forms an approximately "L" shaped structure having one end connected to the sleeve 220 and the other end extending downward. Fig. 1 and 3 show that the driving block 260 is fixedly mounted to the bottom end of the second connection section 252.

In this structure, the sliding member 250 can be guided and limited by the sliding groove 241 of the guide rail 240, and the notch 242 on the guide rail 240 can avoid interference between the sliding member 250 and the guide rail 240. Further, by setting the length of the second connection section 252, a height difference between the stopper 230 and the support mechanism 300 when the support mechanism 300 supports the rotation portion 510 may be set so that the height difference matches the height of the rotation portion 510.

As shown in fig. 1 and 3, in one possible implementation, the support mechanism 300 includes a housing 310 and a support rod 320, the housing 310 is mounted on a side wall of the guide rail 240 facing the sleeve 220, the support rod 320 penetrates through the housing 310 and the side wall of the guide rail 240, at least one of an end of the support rod 320 extending into the sliding slot 241 and the driving block 260 is provided with a driving surface 261, and the driving surface 261 is configured to drive the support rod 320 to move.

For example, the housing 310 may be a cylindrical structure having an axial direction extending in a horizontal direction, and one end of the cylindrical structure is fixed to a side wall of the guide rail 240. Fig. 3 shows that one end of the support bar 320 protrudes from one end of the housing 310 away from the guide rail 240, and the other end of the support bar 320 penetrates the side walls of the housing 310 and the guide rail 240, respectively, and protrudes into the slide groove 241. In this embodiment, the driving surface 261 is an inclined surface inclined to the horizontal direction, and in other embodiments, the driving surface 261 may be an arc surface. As shown in fig. 3, the driving surface 261 is disposed on the driving block 260, and when the sliding member 250 drives the driving block 260 to move, the driving block 260 pushes the supporting rod 320 through the driving surface 261 to move the supporting rod 320 in a direction away from the guide rail 240. Wherein, an included angle is formed between the moving direction of the supporting rod 320 and the moving direction of the sliding member 250. In other embodiments, the driving surface 261 may be disposed only at the end of the support rod 320 extending into the sliding groove 241, or the driving block 260 and the end of the support rod 320 extending into the sliding groove 241 may be provided with one driving surface 261 each.

In this structure, when the sliding member 250 drives the driving block 260 to move, the driving block 260 pushes the supporting rod 320 through the driving surface 261, so that the supporting rod 320 moves in a direction away from the guide rail 240, and when one end of the supporting rod 320 away from the guide rail 240 extends below the rotating portion 510, the rotating portion 510 can be supported.

With continued reference to fig. 1 and 3, the supporting mechanism 300 further includes an elastic member 330, one end of the elastic member 330 is connected to the supporting rod 320, and the elastic member 330 is configured to drive the supporting rod 320 to abut against the driving block 260.

For example, a spring may be used as the elastic member 330, and when the spring is a tension spring, both ends of the tension spring may be connected to the guide rail 240 and the support bar 320, respectively; when the spring is a compression spring, both ends of the compression spring may be connected to the support bar 320 and an end of the housing 310 remote from the guide rail 240, respectively. When the driving block 260 drives the supporting rod 320 to move in a direction away from the guide rail 240, the elastic member 330 is deformed and generates elastic potential energy; when the sliding member 250 drives the driving block 260 to rise, the elastic member 330 releases elastic potential energy and drives the supporting rod 320 to reset. The elastic member 330 makes the supporting rod 320 always prop against the driving block 260 during the movement of the supporting rod 320.

In this structure, the supporting rod 320 can be driven to return by the elastic force of the elastic member 330, and when the limiting member 230 moves upward to separate from the rotating portion 510, the elastic force of the elastic member 330 drives the supporting rod 320 to separate from the rotating portion 510, so that the worker can detach the fan blade 500 from the fan blade lifting device.

In one possible implementation, as shown in fig. 3, the support bar 320 is provided with a limiting plate 321, and the limiting plate 321 is located inside the housing 310. The elastic member 330 is sleeved on the supporting rod 320, one end of the elastic member 330 abuts against the limiting plate 321, and the other end of the elastic member 330 abuts against the housing 310.

For example, the limiting plate 321 may be disposed on the support bar 320 by welding or an integral molding process. The elastic member 330 is a pressure spring, and the pressure spring is sleeved on the supporting rod 320. One end of the housing 310, which is far away from the guide rail 240, is provided with a limiting part arranged around the support rod 320, one end of the pressure spring is propped against the limiting plate 321, and the other end is propped against the limiting part.

With this structure, the elastic member 330 does not separate from the space between the housing 310 and the support rod 320, and the elastic member 330 can reliably drive the support rod 320 to return.

In one possible implementation, the number of the first guide member, the sliding member 250, the driving blocks 260 and the supporting mechanisms 300 is plural, the sliding members 250 are disposed around the sleeve 220, the driving blocks 260 are mounted on the sliding members 250 in a one-to-one correspondence, each driving block 260 is configured to drive the corresponding supporting mechanism 300 to move relative to the main hanger 100, and the supporting mechanisms 300 are configured to jointly support the rotating portion 510.

As shown in fig. 1, the number of the first guide member, the sliding member 250, the driving block 260 and the supporting mechanism 300 is two, the two sliding members 250 are respectively located at two opposite sides of the sleeve 220, one driving block 260 is mounted on each sliding member 250, and the two supporting mechanisms 300 are respectively located at two opposite sides of the sleeve 220, wherein the two supporting mechanisms 300 can support two opposite sides of the bottom of the rotating portion 510. In other embodiments, the number of the first guide member, the sliding member 250, the driving block 260, and the supporting mechanism 300 may be three, four, five, or the like, which is not limited only herein. It should be noted that the number of the first guide member, the sliding member 250, the driving block 260 and the supporting mechanism 300 is the same.

Through the above arrangement, when the sleeve 220 descends relative to the main hanger 100, the plurality of sliding members 250 on the sleeve 220 can drive the plurality of supporting mechanisms 300 to jointly support the rotating portion 510 of the fan blade 500 through the plurality of driving blocks 260, so that stability of the fan blade 500 in the lifting process is improved.

In one embodiment, the clamping mechanism 400 includes a second guide member and a plurality of clamping blocks 420, wherein each clamping block 420 is provided with a bayonet (not shown) into which an edge of the blade 520 extends, the second guide member is disposed through the plurality of clamping blocks 420, each clamping block 420 is capable of moving along an extending direction of the second guide member, and each clamping block 420 is connected to the main hanger 100 through a hanging rope.

For example, the clamping blocks 420 may have a rectangular block structure, and each clamping mechanism 400 may have two clamping blocks 420. The second guide is a rod-like structure that is disposed through the plurality of clamping blocks 420. In a specific embodiment, a gasket, such as a rubber pad, may be provided on the wall of the bayonet, and may serve to protect the blade 520 and prevent slipping. Illustratively, annular protrusions are respectively disposed at two ends of the second guide member, and the clamping block 420 can be limited by the annular protrusions, so as to prevent the clamping block 420 from falling off from the second guide member.

In the prior art, after the hoisting point is arranged on the fan blade 500, the position of the hoisting point is not easy to adjust. In the process of hoisting the fan blade 500, the situation of inclination may occur due to asymmetric stress on two sides, and the loss may be caused by unhooking in severe cases. In this embodiment, the clamping mechanism 400 includes a second guide member and a plurality of clamping blocks 420, and the positions of the corresponding blades 520 clamped by each clamping mechanism 400 can be adjusted by adjusting the positions of the clamping blocks 420 on the second guide member, so as to avoid the situation that the stress of the fan blade 500 is asymmetric in the process of hoisting.

In one particular embodiment, as shown in FIG. 1, the second guide is a screw 410, and each clamp block 420 is threadably coupled to the screw 410.

It will be appreciated that each clamping block 420 is provided with an internal threaded hole, and each clamping block 420 is in threaded connection with the screw 410 through the internal threaded hole. It should be noted that, when the position of the clamping block 420 on the second guide member needs to be adjusted, the lifting rope between the clamping block 420 and the main hanger 100 is detached from the clamping block 420, the position of the clamping block 420 is adjusted by rotating the clamping block 420, and after the position of the clamping block 420 is adjusted, the lifting rope is connected with the clamping block 420. When the clamping block 420 is adjusted, the clamping block 420 can only rotate for an integer number of turns, so that the blade 520 cannot be clamped due to the change of the orientation of the bayonet on the clamping block 420.

In this structure, after the clamping block 420 clamps the blade 520, the clamping block 420 cannot rotate due to the limiting effect of the blade 520, so that the position of the clamping block 420 is fixed relative to the second guide member, and the stability of the clamping mechanism 400 for clamping the blade 520 is improved.

In other embodiments, each clamp block 420 may also be slidably coupled to the second guide, with the position of the clamp block 420 on the second guide being adjusted by sliding the clamp block 420.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims (10)

1. A fan blade hoist device, its characterized in that includes:

a main hanger;

the limiting mechanism is arranged in the middle of the main hanging frame in a lifting manner and is configured to limit the top of the rotating part of the fan blade;

the supporting mechanism is movably arranged below the limiting mechanism and is configured to support the bottom of the rotating part;

the clamping mechanisms are arranged around the limiting mechanisms, each clamping mechanism is connected with the main hanging bracket, and the clamping mechanisms are used for clamping a plurality of blades of the fan blade in one-to-one correspondence.

2. The fan blade lifting device according to claim 1, wherein the limiting mechanism comprises an adjusting rod, a sleeve, a limiting piece, a first guide piece and a sliding piece, the adjusting rod extends in the vertical direction, one end of the adjusting rod is rotatably connected with the main hanging frame, the other end of the adjusting rod stretches into the sleeve and is in threaded connection with the sleeve, the limiting piece is mounted at the bottom end of the sleeve, the limiting piece is configured to abut against the top of the rotating part, the first guide piece is mounted on the main hanging frame, the extending direction of the first guide piece is parallel to the extending direction of the adjusting rod, the sliding piece is mounted on the sleeve and is in sliding connection with the first guide piece, and the sliding piece is configured to slide along the extending direction of the first guide piece.

3. The fan blade lifting device according to claim 2, wherein a driving block is mounted on the sliding member, and the driving block is configured to drive the supporting mechanism to move relative to the main hanging bracket.

4. The fan blade lifting device according to claim 3, wherein the first guide member is a guide rail installed on the main hanging bracket, the guide rail is provided with a chute extending along a vertical direction, and a notch is formed in a side wall of the guide rail facing one side of the sleeve;

the sliding piece comprises a first connecting section and a second connecting section, the second connecting section is slidably mounted in the sliding groove, the first end of the first connecting section is connected with the sleeve, the second end of the first connecting section penetrates through the notch and is connected with the first end of the second connecting section, and the driving block is mounted at the second end of the second connecting section.

5. The fan blade lifting device according to claim 4, wherein the supporting mechanism comprises a housing and a supporting rod, the housing is mounted on a side wall of the guide rail, which faces one side of the sleeve, the supporting rod penetrates through the housing and the side wall of the guide rail respectively, at least one of one end of the supporting rod extending into the sliding groove and the driving block is provided with a driving surface, and the driving surface is configured to drive the supporting rod to move.

6. The fan blade lifting device according to claim 5, wherein the supporting mechanism further comprises an elastic member, one end of the elastic member is connected with the supporting rod, and the elastic member is configured to drive the supporting rod to abut against the driving block.

7. The fan blade lifting device according to claim 6, wherein a limiting plate is arranged on the supporting rod, the limiting plate is located in the shell, the elastic piece is sleeved on the supporting rod, one end of the elastic piece abuts against the limiting plate, and the other end of the elastic piece abuts against the shell.

8. A fan blade lifting device according to claim 3, wherein the number of the first guide member, the sliding member, the driving block and the supporting mechanism is plural, the sliding members are arranged around the sleeve, the driving blocks are arranged on the sliding members in a one-to-one correspondence manner, each driving block is configured to drive the corresponding supporting mechanism to move relative to the main hanger, and the supporting mechanisms are configured to jointly support the rotating part.

9. The fan blade lifting device according to any one of claims 1 to 8, wherein the clamping mechanism comprises a second guide member and a plurality of clamping blocks, a bayonet into which the edge of the fan blade extends is formed in each clamping block, the second guide member passes through the plurality of clamping blocks, each clamping block can move along the extending direction of the second guide member, and each clamping block is connected with the main hanger through a lifting rope.

10. The fan blade lifting device according to claim 9, wherein the second guiding element is a screw, and each clamping block is in threaded connection with the screw.