CN218491282U - Hoisting ring for casting and unpacking main shaft of wind driven generator - Google Patents

Abstract

The utility model discloses a rings are used in casting of aerogenerator main shaft unpacking, including the cover at the rings body in the main shaft outside, be connected with interior beaded finish on the inside wall of rings body, be connected with outer beaded finish on the lateral wall of rings body, be connected with the second arm-tie on the lateral wall of outer beaded finish, be connected with first arm-tie perpendicularly on the second arm-tie, be connected with main lug on the first arm-tie, be equipped with vice lug on the lateral wall of rings body. The hanging ring is directly sleeved between the outer side of the wind power main shaft and the wind power main shaft for fitting, the stress is uniform, the friction coefficient is large, the assembly and disassembly are simple and quick, the production efficiency is improved, the labor intensity is saved, the use is reliable, the lifting is safe, and the problems that the existing steel wire rope is difficult to lift and bind and the safety coefficient is low are solved.

Description

Hoisting ring for casting and unpacking main shaft of wind driven generator

Technical Field

The utility model relates to a hoist technical field specifically is a wind driven generator main shaft casting rings for unpacking.

Background

A main shaft (wind power main shaft for short) of a wind driven generator is a component for transmitting torque and is an important component for connecting a fan fin and a fan base. The main shaft of the wind driven generator is formed by casting, the wind power main shaft is cut and polished at the first time after casting and unpacking, the main shaft needs to be lifted out of a lower box body of a casting mould and put down the main shaft after unpacking, the casting process is bottom pouring, and the unpacking state of the wind power main shaft casting is an upright state with a flange at the lower part and has higher temperature. The conventional hoisting method is to bind through a steel wire rope and to lay down a main shaft in a travelling crane hoisting mode.

The steel wire rope is adopted for hoisting, so that the steel wire rope is soft, binding nodes are easy to loosen, the steel wire rope is easy to slip off under vibration when the main shaft is laid down and turned over, and the steel wire rope is difficult to bind and loose, so that the production efficiency is reduced. Although patent CN208732424U discloses a hoisting tool for a large double-suction F-type fan main shaft, its use needs to be in threaded connection with the main shaft, but the wind power main shaft just cast out is a blank, and its surface has not been processed with external threads, so this hoisting tool is not suitable for hoisting when the wind power main shaft is cast and unpacked.

SUMMERY OF THE UTILITY MODEL

The utility model discloses it is not enough to be the above-mentioned that exists to prior art, provides a wind driven generator main shaft casting rings for unpacking, rings directly overlap the laminating between the outside of wind-powered electricity generation main shaft and wind-powered electricity generation main shaft, and the atress is even, and coefficient of friction is big, and the dismouting is simple, quick, has improved production efficiency, has saved intensity of labour, uses reliably, and handling safety has solved present wire rope hoist and mount and has binded the problem that difficulty, factor of safety are low.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a rings are used in casting of aerogenerator main shaft unpacking, includes the rings body of cover in the main shaft outside, be connected with interior beaded finish on the inside wall of rings body, be connected with outer beaded finish on the lateral wall of rings body, be connected with the second arm-tie on the lateral wall of outer beaded finish, be connected with first arm-tie perpendicularly on the second arm-tie, be connected with main lug on the first arm-tie, be equipped with vice lug on the lateral wall of rings body.

Preferably, a reinforcing plate is arranged between the first pulling plate and the second pulling plate.

Preferably, the number of the auxiliary lifting lugs is two.

Preferably, the main lifting lug is hinged with the first pulling plate through a rotating shaft.

Preferably, evenly be equipped with two at least holders along the circumference on the rings body, the holder includes splint and roof, splint are located the inside of rings body, the roof is located the outside of rings body, and the upper and lower both ends of splint are connected with the roof through the push pedal, be equipped with the double-screw bolt on the lateral wall of outer stiffening ring, be equipped with the slide opening with double-screw bolt sliding fit on the roof, be equipped with the adjusting nut who is located the roof outside on the double-screw bolt, be connected with the spring between roof and the outer stiffening ring, the spring housing is in the outside of double-screw bolt.

Preferably, the top plate has a circular arc structure.

Preferably, the side walls of the outer reinforcing ring and the inner reinforcing ring are provided with guide grooves, and the side wall of the push plate is provided with a guide rod matched with the guide grooves.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses rings are direct to be overlapped and are laminated between the outside of wind-powered electricity generation main shaft and the wind-powered electricity generation main shaft, and the atress is even, and coefficient of friction is big, and the dismouting is simple, quick, has improved production efficiency, has saved intensity of labour, uses reliably, and the handling is safe, has solved the problem that current wire rope hoist and mount bind difficulty, factor of safety low.

2. The utility model discloses set up the holder on rings, can cooperate with the wind-powered electricity generation main shaft of different diameters through adjusting the holder, increased the commonality of using, saved the cost of making many money rings, adjust simply convenient to use.

Drawings

Fig. 1 is a first schematic structural diagram of the present invention;

FIG. 2 is a second schematic structural view of the present invention;

FIG. 3 is a schematic structural view of the suspension ring body;

FIG. 4 is a perspective view of the clamp;

fig. 5 is a front view of the clamp.

In the figure: 1-a hoisting ring body; 101-an outer reinforcement ring; 102-an inner stiffening ring; 103-a first pulling plate; 104-a second pulling plate; 105-a stiffener plate; 106-a guide groove; 2-main lifting lug; 3-auxiliary lifting lugs; 4-a clamping member; 401-push plate; 402-a top plate; 403-slide hole; 404-a clamping plate; 405-a guide bar; 5-a stud; 6-adjusting the nut; 7-spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the first embodiment, the first step is,

as shown in fig. 1, a lifting ring for casting and unpacking a wind power main shaft (wind power main shaft for short) of a wind power generator comprises a lifting ring body 1 sleeved outside the wind power main shaft, wherein a general hoisting position is the middle lower part of the wind power main shaft, an inner reinforcing ring 102 is connected to the inner side wall of the lifting ring body 1, an outer reinforcing ring 101 is connected to the outer side wall of the lifting ring body 1, the structural strength of the lifting ring body 1 is improved through the inner reinforcing ring 102 and the outer reinforcing ring 101, in this embodiment, the inner diameter of the inner reinforcing ring 102 is matched with the outer diameter of the wind power main shaft, that is, the lifting ring is sleeved on the wind power main shaft, the inner reinforcing ring 102 is completely attached to the wind power main shaft, a second pulling plate 104 is connected to the side wall of the outer reinforcing ring 101, a first pulling plate 103 is vertically connected to the second pulling plate 104, a main lifting lug 2 is hinged to the first pulling plate 103 through a rotating shaft, and an auxiliary lifting lug 3 is arranged on the side wall of the lifting ring body 1.

When the lifting device is used, the main lifting lug 2 and the auxiliary lifting lug 3 are respectively lifted by two lifting hooks of a travelling crane, the lifting ring body 1 is made to be horizontal and is sleeved at the upper end of the wind power main shaft until the lifting ring is sleeved at the middle lower part of the wind power main shaft, at the moment, the inner reinforcing ring 102 is attached to the side wall of the wind power main shaft, the auxiliary lifting lug 3 is loosened, only the main lifting lug 2 is pulled, at the moment, the wind power main shaft is clamped through the inclination force due to uneven stress of the lifting ring, so that the wind power main shaft is lifted, in the lifting process, the wind power main shaft is lifted out of a lower box body of a casting die and transferred to a wind power main shaft storage area, the wind power main shaft is in an inclined state, the wind power main shaft is lifted to the wind power main shaft storage area, a flange plate of the wind power main shaft is firstly contacted with the ground, then the lifting ring is slowly lowered, so that the wind power main shaft is slowly lowered, the lifting work after the wind power main shaft is cast and unpacked is realized, and finally, the main lifting ring 2 is loosened and the lifting ring is taken off from the wind power main shaft.

In the present application, in order to ensure the structural strength, the inner reinforcement ring 102, the bail body 1, the outer reinforcement ring 101, and the second pulling plate 104 are integrally structured, and the reinforcement plate 105 is provided between the first pulling plate 103 and the second pulling plate 104.

When the lifting ring is sleeved on the wind power main shaft, the auxiliary lifting lugs 3 are two in number in order to straighten the lifting ring, and the main lifting lug 2 is added to the two auxiliary lifting lugs 3, so that the stability of the lifting ring is guaranteed.

In the second embodiment, the first embodiment of the method,

as shown in fig. 2, in this embodiment, in order to increase the versatility, the lifting ring is suitable for lifting wind power main shafts of different models, on the basis of the first embodiment, the inner diameter of the lifting ring is changed, the inner diameter of the lifting ring is enlarged, and the inner reinforcement ring 102 is not attached to the wind power main shaft any more, but is larger than the outer diameter of the wind power main shaft. In addition, at least two clamping pieces 4 are uniformly arranged on the hoisting ring body 1 along the circumference, in the embodiment, three clamping pieces 4 are arranged, and the stability during matching is improved, as shown in fig. 4-5, each clamping piece 4 comprises a clamping plate 404 and a top plate 402, the clamping plate 404 is positioned inside the hoisting ring body 1, the top plate 402 is positioned outside the hoisting ring body 1, the upper end and the lower end of the clamping plate 404 are connected with the top plate 402 through a push plate 401, a stud 5 is arranged on the side wall of the outer reinforcing ring 101, a sliding hole 403 in sliding fit with the stud 5 is arranged on the top plate 402, an adjusting nut 6 positioned outside the top plate 402 is arranged on the stud 5, a spring 7 is connected between the top plate 402 and the outer reinforcing ring 101, the spring 7 is sleeved outside the stud 5, the adjusting nut 6 is rotated, the clamping pieces 4 can be slid, and accordingly the size of the clamping inner diameter is changed to match with wind power main shafts with different diameters.

In order to increase the contact area with the wind power main shaft, the top plate 402 has a circular arc structure.

In order to improve the stability of the clamping member 4, as shown in fig. 3, the outer reinforcing ring 101 and the inner reinforcing ring 102 are provided with guide grooves 106 on the side walls thereof, and the push plate 401 is provided with guide rods 405 on the side walls thereof, which are engaged with the guide grooves 106.

During the use, according to the outer diameter of wind-powered electricity generation main shaft, rotate adjusting nut 6 and adjust the position of splint 404, it is the same with the size that holder 4 adjusted not, ensure that the centre gripping profile is circular, after the regulation finishes, holder 4 is fixed under the effect of spring 7, be connected rings with the driving, overlap rings in the outside of wind-powered electricity generation main shaft through the driving, until every splint 404 all with the lateral wall laminating of wind-powered electricity generation main shaft, then loosen vice lug 3, begin to lift by crane, the mode of lifting by crane is the same with principle and embodiment one, no longer repeated description.

It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims (7)

1. The utility model provides a wind driven generator main shaft casting rings for unpacking, includes the rings body of cover in the main shaft outside, its characterized in that: the improved hanging ring is characterized in that an inner reinforcing ring is connected to the inner side wall of the hanging ring body, an outer reinforcing ring is connected to the outer side wall of the hanging ring body, a second pulling plate is connected to the side wall of the outer reinforcing ring, a first pulling plate is vertically connected to the second pulling plate, a main lifting lug is connected to the first pulling plate, and an auxiliary lifting lug is arranged on the side wall of the hanging ring body.

2. The hoisting ring for casting the open box of the main shaft of the wind driven generator as claimed in claim 1, wherein: and a reinforcing plate is arranged between the first pulling plate and the second pulling plate.

3. The hoisting ring for casting the open box of the main shaft of the wind driven generator as claimed in claim 1, wherein: the number of the auxiliary lifting lugs is two.

4. The hoisting ring for casting the open box of the main shaft of the wind driven generator as claimed in claim 1, wherein: the main lifting lug is hinged with the first pulling plate through a rotating shaft.

5. The hoisting ring for casting the open box of the main shaft of the wind driven generator as claimed in claim 1, wherein: evenly be equipped with two at least holders along the circumference on the rings body, the holder includes splint and roof, splint are located the inside of rings body, the roof is located the outside of rings body, and the upper and lower both ends of splint are passed through the push pedal and are connected with the roof, be equipped with the double-screw bolt on the lateral wall of outer stiffening ring, be equipped with on the roof with double-screw bolt sliding fit's slide opening, be equipped with the adjusting nut who is located the roof outside on the double-screw bolt, be connected with the spring between roof and the outer stiffening ring, the spring housing is in the outside of double-screw bolt.

6. The wind driven generator main shaft casting lifting ring for the open box as claimed in claim 5, wherein: the top plate is of a circular arc structure.

7. The hoisting ring for casting the open box of the main shaft of the wind driven generator as claimed in claim 5, wherein: the side walls of the outer reinforcing ring and the inner reinforcing ring are provided with guide grooves, and the side wall of the push plate is provided with a guide rod matched with the guide grooves.

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