CN217102639U

CN217102639U - Lifting equipment

Info

Publication number: CN217102639U
Application number: CN202220141976.0U
Authority: CN
Inventors: 温威月; 张干; 曹鑫
Original assignee: Sany Renewable Energy Co Ltd
Current assignee: Sany Renewable Energy Co Ltd
Priority date: 2022-01-19
Filing date: 2022-01-19
Publication date: 2022-08-02
Anticipated expiration: 2032-01-19

Abstract

The utility model provides a lifting equipment relates to wind-powered electricity generation technical field, and this equipment can be used to lift by crane the apex of aerogenerator's blade, including support, extensible member, adsorption equipment and evacuating device, the top of a plurality of extensible members with respectively leg joint, the bottom of every extensible member all is connected with an adsorption equipment, evacuating device and each adsorption equipment are connected, a plurality of adsorption equipment are suitable for by evacuating device to take out to the vacuum and adsorb in the different positions department of apex. Each adsorption device touching the blade tip is vacuumized through the vacuumizing device, so that the adsorption devices tightly adsorb the blade tip, then the external hoisting tool is moved upwards to realize the demoulding of the blade tip, the blade tip is uniformly stressed due to the fact that the plurality of adsorption devices are distributed on the blade tip, the demoulding safety of the blade tip is guaranteed, in addition, the flash at the edge of the blade tip does not need to be cut off, and the demoulding efficiency is high.

Description

Lifting equipment

Technical Field

The utility model relates to a wind-powered electricity generation technical field particularly, relates to a lift by crane equipment.

Background

At present, after the molding, die assembly and curing of a fan (wind driven generator) blade are completed, because the blade is long, two traveling cranes are generally needed to demold and lift the blade out of a die, namely, a blade root part of the blade is lifted by one lifting tool first to demold the blade root part, then the blade tip part of the blade is lifted by the other lifting tool to demold the blade tip part, and finally the demolding of the whole blade is completed.

Specifically, a lifting point is respectively arranged at the position of the blade root and the position of the blade tip, and the blade root is connected and fixed with a lifting tool and a root embedded threaded sleeve through a screw rod and then lifted. When the blade tip is lifted, the blade tip is usually lifted through the sling, and because the blade tip is thin, if the cloth layer flash at the front edge and the rear edge of the blade tip is not cut off, the traditional sling lifting mode easily causes uneven stress when the blade tip is lifted, and danger easily occurs; secondly, the blade tip is not cut off, the hanging strip is difficult to bind the blade tip, a cutting machine is needed to cut off the cloth layer fly edges of the front edge and the rear edge of the blade tip along cutting lines, hoisting guard plates are installed on the front edge and the rear edge of the blade tip, and then the blade tip is hoisted.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one of the problems set forth above.

In order to solve the problem, the utility model provides a lift by crane equipment for lift by crane aerogenerator's blade, including support, extensible member, adsorption equipment and evacuating device, it is a plurality of the top of extensible member respectively with leg joint, every the bottom of extensible member all is connected with one adsorption equipment, evacuating device with the adsorption equipment intercommunication, so that the difference adsorption equipment adsorbs the different positions of blade department.

The utility model provides a pair of lifting equipment compares in prior art, has but not be limited to following beneficial effect:

when a blade of a wind driven generator, such as a blade tip, needs to be demolded, each telescopic part can be extended to the longest, the support is connected with an external hoisting tool, the support is driven to move downwards by the external hoisting tool, the first adsorption device continuously moves downwards after touching the blade tip, at the moment, the telescopic part connected with the first adsorption device correspondingly contracts, because the blade tip is not a plane, the adsorption devices touching the blade tip are more and more until not increasing along with the continuation of the support, then, each adsorption device touching the blade tip can be vacuumized by a vacuumizing device such as a vacuum pump to enable the adsorption devices to tightly adsorb the blade tip, then, the external hoisting tool moves upwards to realize the demolding, and as a plurality of adsorption devices are distributed on the blade tip, the integral stress of the blade tip is uniform, the demolding safety of the blade tip is ensured, in addition, no flash at the edge of the blade tip needs to be cut off, the demoulding efficiency is high.

Furthermore, the extensible member is a pneumatic extensible member, the pneumatic extensible member is communicated with the vacuumizing device, and the vacuumizing device is suitable for driving the pneumatic extensible member to extend and retract.

Further, the extensible member is including fixed pipe, movable block and movable rod, fixed pipe with the leg joint, the inner wall of fixed pipe is provided with one-way stop gear, the movable block set up in the fixed pipe, one-way stop gear is used for the restriction the movable block downstream, the top of movable rod with the movable block is connected, adsorption equipment with the bottom of movable rod is connected.

Furthermore, one-way stop gear includes a plurality of tooth structures, and is a plurality of the tooth structure along vertical distributing in proper order and set up in the fixed tube inner wall, the tooth structure has the hypotenuse and is located the support topside on hypotenuse top, the movable block is suitable for to follow right angled triangle's hypotenuse upward movement and messenger tooth structure elastic deformation until support in second right-angle side department.

Furthermore, the one-way limiting mechanism is provided with a plurality of tooth structures which are sequentially distributed along the vertical direction and are arranged on the inner wall of the fixed pipe, and each tooth structure is provided with a bevel edge and a supporting top edge positioned at the top end of the bevel edge;

the movable block is provided with a lateral groove, a pawl is arranged in the lateral groove, an elastic piece is arranged between one side of the pawl and the bottom of the lateral groove, a limiting block is arranged at the notch of the lateral groove, and the pawl is suitable for being accommodated in the lateral groove or supported on the top edge of the support.

Furthermore, one-way stop gear still includes the connecting strip, and is a plurality of the tooth structure passes through the connecting strip set up in the fixed pipe inner wall, the extensible member still includes sideslip mechanism, the fixed pipe inner wall is provided with the holding tank, sideslip mechanism is suitable for the drive the connecting strip in horizontal slip in the holding tank.

Further, the adsorption device is a sucker, the sucker is provided with a sealing structure, and the sucker is suitable for being connected with the blade through the sealing structure.

Further, the adsorption device is movably connected with the bottom end of the telescopic piece.

Furthermore, a hoisting fitting piece is arranged on the support.

Further, the support comprises a support body and a support top cover, the support top cover is detachably connected to the top of the support body, and the vacuumizing device is arranged between the support top cover and the support body.

Drawings

Fig. 1 is a schematic structural view of a hoisting apparatus according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a telescopic member having a one-way position-limiting mechanism according to an embodiment of the present invention;

FIG. 3 is an enlarged view taken at A in FIG. 2;

fig. 4 is a schematic structural diagram of a telescopic member with another one-way limiting mechanism according to an embodiment of the present invention;

fig. 5 is an enlarged view at B in fig. 4.

Description of reference numerals:

1-bracket, 11-bracket body, 12-bracket top cover, 121-hoisting matching piece, 2-adsorption device, 3-vacuumizing device, 4-telescopic piece, 41-fixed pipe, 411-accommodating groove, 42-movable block, 421-lateral groove, 43-movable rod, 44-connecting strip, 45-tooth structure, 46-pawl, 47-elastic piece, 48-limiting block and 5-blade tip.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.

In the description of the present invention, it is to be understood that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are merely for convenience of description of the present invention and simplification of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Also, in the drawings, the Z-axis represents a vertical, i.e., up-down position, and a positive direction of the Z-axis (i.e., an arrow direction of the Z-axis) represents up and a negative direction of the Z-axis (i.e., a direction opposite to the positive direction of the Z-axis) represents down.

It should also be noted that the foregoing Z-axis representation is meant only to facilitate the description of the invention and to simplify the description, and is not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be considered limiting of the invention.

Referring to fig. 1, the embodiment of the utility model provides a lift by crane equipment for lift by crane aerogenerator's blade, including support 1, extensible member 4, adsorption equipment 2 and evacuating device 3, it is a plurality of the top of extensible member 4 respectively with support 1 is connected, every the bottom of extensible member 4 all is connected with one adsorption equipment 2, evacuating device 3 and each adsorption equipment 2 is connected, evacuating device 3 be suitable for with adsorption equipment 2 intercommunication, so that the difference adsorption equipment 2 adsorbs the different positions department of blade.

In this embodiment, when a blade of a wind turbine needs to be demolded, for example, the blade tip 5, each telescopic member 4 may be extended to the longest, the support 1 is connected to an external hoisting tool, the support 1 is driven to move downward by the external hoisting tool moving downward, the support 1 continues to move downward after the first adsorption device touches the blade tip 5, at this time, the telescopic member 4 connected to the first adsorption device 2 correspondingly contracts, since the blade tip 5 is not a plane, as the support 1 continues to move downward, the adsorption devices 2 touching the blade tip 5 are more and more until no more, and then each adsorption device 2 touching the blade tip 5 may be vacuumized by a vacuum pumping device 3, such as a vacuum pump, so that the adsorption devices 2 tightly adsorb the blade tip 5, and then the blade tip 5 is demolded by moving upward by the external hoisting tool, because the blade tip 5 is distributed with a plurality of adsorption devices 2, the integral stress of the blade tip 5 is uniform, the demoulding safety of the blade tip 5 is ensured, in addition, the flash at the edge of the blade tip 5 does not need to be cut off, and the demoulding efficiency is high.

It should be noted that the hoisting device of this embodiment is not limited to the adsorption of the blade tip 5 for hoisting and demolding, and may also be used for demolding the blade root of the blade, for example, one hoisting device demolds the blade root, and the other hoisting device demolds the blade tip 5.

Optionally, the telescopic part 4 is a pneumatic telescopic part, the pneumatic telescopic part is communicated with the vacuum pumping device 3, and the vacuum pumping device 3 is suitable for driving the pneumatic telescopic part to stretch.

Here, usually, extensible member 4 has upper portion cavity and lower part cavity, and the power supply of extensible member 4 is the air supply, specifically can derive from evacuating device, draws the air in extensible member 4 upper portion cavity gradually through evacuating device 3, and then reduces the atmospheric pressure in extensible member 4 upper portion cavity gradually, makes the atmospheric pressure in the upper portion cavity be less than the atmospheric pressure in the lower part cavity gradually, and then realizes the ascending shrink gradually of extensible member 4. When the length of the extensible member needs to be recovered subsequently, the connection between the vacuumizing device and the upper cavity of the extensible member 4 is cut off, the upper cavity of the extensible member 4 is also recovered to the atmospheric pressure, and the length of the extensible member 4 is recovered under the gravity.

Optionally, the extensible member 4 may include a fixed pipe 41, a movable block 42 and a movable rod 43, the fixed pipe 41 is connected to the support 1, an inner wall of the fixed pipe 41 is provided with an unidirectional limiting mechanism, the movable block 42 is disposed in the fixed pipe 41, the movable block 42 is adapted to be along the fixed pipe 41 moves upward, the unidirectional limiting mechanism is used for limiting the downward movement of the movable block 42, the top end of the movable rod 43 is connected to the movable block 42, and the adsorption device 2 is connected to the bottom end of the movable rod 43.

Here, under the action of the one-way limiting mechanism, only the movable block 42 is allowed to move upward in the fixed tube 41, and the downward movement of the movable block 42 is limited. So, outside lifting device drives the support 1 and moves the back down, adsorption equipment touches apex 5 back, the apex gives adsorption equipment 2's reaction force and makes extensible member 4 shrink, that is to say make movable block 42 rebound, until last adsorption equipment 2 touches the back with apex 5, the adsorption equipment 2 that touches apex 5 before is driven corresponding height by the movable block 42 that corresponds, movable block 42 does not move down relatively in fixed pipe 41, guarantee that a plurality of adsorption equipment 2's relative position no longer changes, guarantee to promote apex 5 steadily.

Alternatively, referring to fig. 2 and 3, the one-way limiting mechanism comprises a plurality of tooth structures 45, the tooth structures 45 are distributed in sequence along the vertical direction and are arranged on the inner wall of the fixed pipe, the tooth structures 45 have inclined edges and supporting top edges at the top ends of the inclined edges, and the movable block 42 is suitable for moving upwards along the inclined edges and elastically deforming the tooth structures 45 until the movable block supports at the supporting top edges.

In this one-way limiting mechanism, the vertical cross section of the tooth structure 45 may be a right triangle, a first right-angle side of the right triangle is disposed toward the inner wall of the fixing tube 41, a second right-angle side of the right triangle is located at the top, and the second right-angle side is also the aforementioned top supporting side.

Here, the tooth structure 45 can be elastically deformed, the sectional shape of the tooth structure 45 in the natural state on the vertical plane is a right triangle, the moving block 42 forces the tooth structure 45 to be deformed upward when moving upward, as shown in fig. 3, one side surface of the moving block 42 forces two tooth structures 45 to be deformed, and the moving block 42 is supported on the second right-angled side of the tooth structure 45 which has been restored to the natural state, and the moving block 42 cannot move downward.

It is within the scope of the present application that the movable block 42 is substantially in the shape of a right triangle, as long as the corresponding function is achieved.

Optionally, referring to fig. 4 and 5, another one-way limiting mechanism includes a plurality of tooth structures 45, the tooth structures 45 are distributed in sequence along the vertical direction and are disposed on the inner wall of the fixed tube 41, and the tooth structure 45 has a bevel edge and a supporting top edge located at the top end of the bevel edge;

the movable block 42 is provided with a lateral groove 421, a detent 46 is arranged in the lateral groove 421, an elastic member 47 is arranged between one side of the detent 46 and the bottom of the lateral groove 421, a limit block 48 is arranged at the notch of the lateral groove 421, and the detent 46 is suitable for being received in the lateral groove 421 or supported on the top supporting edge.

In this kind of one-way limiting mechanism, the vertical cross section of the tooth structure 45 may be a right triangle, a first right-angle side of the right triangle is disposed toward the inner wall of the fixed pipe 41, a second right-angle side of the right triangle is located at the top, and the second right-angle side is also the aforementioned top supporting side.

Here, the tooth structure 45 has no deformation capability, when the movable block 42 moves upwards, the tooth structure 45 forces the pawl 46 to rotate towards the lateral groove 421 and compresses the elastic member 47, the cooperation of the plurality of tooth structures 45 and the pawl 46 causes the pawl 46 to move upwards along with the movable block in a continuous jumping manner, the pawl 46 can be ejected out of the lateral groove 421 by the elastic member 47 only by a small angle under the limit of the limit block 48, and when the elastic member 47 abuts against the pawl 46 against the limit block 48, the free end of the pawl 46 is supported on the second right-angle side of the tooth structure.

Optionally, referring to fig. 2 or 4, in the two aforementioned one-way limiting mechanisms, the one-way limiting mechanism further includes a connecting strip 44, the plurality of tooth structures are disposed on the inner wall of the fixed tube 41 through the connecting strip 44, the extensible member 4 further includes a traversing mechanism, the inner wall of the fixed tube 41 is provided with an accommodating groove 411, the connecting strip 44 horizontally slides in the accommodating groove 411, and the traversing mechanism (not shown in the figure) is configured to drive the connecting strip 44 to horizontally move.

Here, when the movable block 42 needs to be moved down to the lowest position in the fixed pipe 41, the transverse moving mechanism can drive the connecting strip 44 to move towards the inside of the accommodating groove 411, the tooth structure 45 is not limited in one direction any more, and at this time, the movable block 42 can move down under the self-weight. Of course, in order to prevent the movable block 42 from being separated from the bottom end of the fixed tube 41, a stopper ring is provided at the bottom end port of the fixed tube 41, and the movable block 42 moves downward until it abuts against the stopper ring and then stops.

Optionally, the suction device 2 is a suction cup provided with a sealing structure, through which the suction cup is adapted to be connected with the blade (such as the blade tip 5 of the blade).

Here, the firmness of the suction cup and the blade tip 5 is ensured by the sealing structure.

Optionally, the adsorption device 2 is movably connected with the bottom end of the telescopic member 4.

Here, the suction device, i.e. the suction cup, is movably connected to the bottom end of the telescopic member 4 (specifically, the bottom end of the movable rod 43), and the suction cup can adjust the direction and use the blade tips 5 of different types of fan blades.

Optionally, referring to fig. 1, a lifting fitting 121 is disposed on the bracket 1.

Here, the connection to the external hoisting tool is effected by means of a hoisting fitting, for example a hoisting ring.

Optionally, referring to fig. 1, the bracket 1 includes a bracket body 11 and a bracket top cover 12, the bracket top cover 12 is detachably connected to the top of the bracket body 11, and the vacuum pumping device 3 is disposed between the bracket top cover 12 and the bracket body 11.

Here, through setting up support 1 as split type, can place evacuating device 3 inside the support, play the guard action, also reduce certain noise.

It should be noted that the lifting apparatus of the present embodiment can also demold the split blade tip. That is, the blade tip can be provided with a blade root and a blade tip which are respectively formed and then welded into a whole, and the split structure is convenient for long-distance transportation of the blade.

The terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature.

Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Without departing from the spirit and scope of the present disclosure, those skilled in the art can make various changes and modifications, which will fall into the scope of the present disclosure.

Claims

1. The utility model provides a lift by crane equipment for lift by crane aerogenerator's blade, its characterized in that, including support (1), extensible member (4), adsorption equipment (2) and evacuating device (3), a plurality of the top of extensible member (4) respectively with support (1) is connected, every the bottom of extensible member (4) all is connected with one adsorption equipment (2), evacuating device (3) be suitable for with adsorption equipment (2) intercommunication, so that it is different adsorption equipment (2) adsorb the different positions department of blade.

2. Hoisting device according to claim 1, characterized in that said telescopic member (4) is a pneumatic telescopic member, which is in communication with said vacuum means (3).

3. The hoisting equipment according to claim 1, wherein the telescopic member (4) comprises a fixed pipe (41), a movable block (42) and a movable rod (43), the fixed pipe (41) is connected with the support (1), an one-way limiting mechanism is arranged on the inner wall of the fixed pipe (41), the movable block (42) is arranged in the fixed pipe (41), the one-way limiting mechanism is used for limiting the movable block (42) to move downwards, the top end of the movable rod (43) is connected with the movable block (42), and the adsorption device (2) is connected with the bottom end of the movable rod (43).

4. The hoisting device according to claim 3, wherein the one-way limiting mechanism comprises a plurality of tooth structures (45), wherein the tooth structures (45) are vertically distributed in sequence and are arranged on the inner wall of the fixed pipe (41), the tooth structures (45) are provided with inclined edges and supporting top edges positioned at the top ends of the inclined edges, and the movable block (42) is suitable for moving upwards along the inclined edges and elastically deforming the tooth structures (45) until the tooth structures are supported at the supporting top edges.

5. The hoisting device according to claim 3, wherein the one-way limiting mechanism comprises a plurality of tooth structures (45), the tooth structures (45) are distributed in sequence in the vertical direction and are arranged on the inner wall of the fixed pipe (41), and the tooth structures (45) are provided with inclined edges and supporting top edges positioned at the top ends of the inclined edges;

the movable block (42) is provided with a lateral groove (421), a pawl (46) is arranged in the lateral groove (421), an elastic piece (47) is arranged between one side of the pawl (46) and the bottom of the lateral groove (421), a limiting block (48) is arranged at the notch of the lateral groove (421), and the pawl (46) is suitable for being accommodated in the lateral groove (421) or supported on the top supporting edge.

6. The hoisting equipment according to claim 4 or 5, wherein the one-way limiting mechanism further comprises a connecting strip (44), the plurality of tooth structures (45) are arranged on the inner wall of the fixed pipe (41) through the connecting strip (44), the telescopic part (4) further comprises a transverse moving mechanism, the inner wall of the fixed pipe (41) is provided with an accommodating groove (411), and the transverse moving mechanism is suitable for driving the connecting strip (44) to horizontally slide in the accommodating groove (411).

7. Hoisting device according to claim 1, characterized in that the suction means (2) is a suction cup provided with a sealing structure by means of which the suction cup is adapted to be connected with the blade.

8. Hoisting device according to claim 1, characterized in that the suction means (2) are movably connected to the bottom end of the telescopic member (4).

9. Hoisting device according to claim 1, characterized in that the bracket (1) is provided with a hoisting fitting (121).

10. Hoisting device according to claim 1, characterized in that the holder (1) comprises a holder body (11) and a holder top cover (12), the holder top cover (12) being detachably connected to the top of the holder body (11), and the vacuum means (3) being arranged between the holder top cover (12) and the holder body (11).