CN213011530U

CN213011530U - Balance hanging beam for assembling main shaft

Info

Publication number: CN213011530U
Application number: CN202022055648.2U
Authority: CN
Inventors: 白玉龙; 郭世伟; 陈扶丽
Original assignee: Sinovel Technology Gansu Co ltd
Current assignee: Sinovel Technology Gansu Co ltd
Priority date: 2020-09-18
Filing date: 2020-09-18
Publication date: 2021-04-20
Anticipated expiration: 2030-09-18

Abstract

The utility model relates to a main shaft assembly balance hanging beam, which comprises a steel beam, wherein both ends of the top surface of the steel beam are symmetrically provided with a lifting lug A and a lifting lug B, both ends of the bottom surface of the steel beam are symmetrically provided with a lifting lug C and a lifting lug D, the lifting lug A, the lifting lug B, the lifting lug C and the lifting lug D are respectively and fixedly provided with a shackle A, a shackle B, a shackle C and a shackle D, and the middle part of the bottom surface of the steel beam is symmetrically and fixedly provided with a bracket; the utility model discloses the device makes the main shaft and shrink dish hole adjust the degree of difficulty well by a wide margin and reduces, has realized simultaneously that the main shaft assembly position is adjustable, has broken through the restriction of assembly station, has improved unit assembly efficiency, has promoted assembly quality, reduces the main shaft in the at utmost and contracts the dead risk of dish card, avoids spare part to damage.

Description

Balance hanging beam for assembling main shaft

Technical Field

The utility model belongs to wind turbine generator system rigging equipment field, concretely relates to balanced hanging beam of main shaft assembly.

Background

In recent years, the development of wind power in emerging markets is rapid, and the wind power in China, particularly the manufacturing industry of wind power equipment, rises rapidly under the background of national policy support and energy supply tension; in the manufacturing and assembling process of the wind driven generator, a transmission chain consisting of a main shaft and a gear box belongs to a core component in the whole wind turbine generator, wherein the main shaft assembly belongs to a key assembly process.

Taking a Huarui 2.5MW wind turbine generator as an example, a main shaft of the 2.5MW wind turbine generator is composed of a main shaft, a main bearing and a bearing seat, the total weight is 27 tons, and the main shaft and a gear box are locked by a gear box shrinkage disc and are connected into a whole. When the main shaft is connected with the gear box shrinkage disc, the small head of the main shaft needs to extend into the shrinkage disc to be in small clearance fit, the clearance range is 0.02mm-0.14mm, and the main shaft and the inner hole of the gear box shrinkage disc need to be accurately aligned to realize smooth insertion when the main shaft is inserted due to the extremely small clearance; in the prior art, a common 80T/20T crane in a common assembly workshop is often used for insertion installation, and the lifting speed of the crane is high, so that a main shaft and an inner hole of a contraction disc of a gear box are difficult to align accurately, and the assembly difficulty is increased; in addition, the main shaft and the shrinkage disc are blocked easily due to the fact that the crane is lifted too fast, parts are damaged, the main shaft and the shrinkage disc are affected by the factors, and the 80T/20T crane cannot be used for assembly in the assembly process, although the unit can use the 350T/80T crane to carry out the assembly work, the 350T crane is not popularized and installed in an assembly workshop, an assembly station can only be arranged along the direction of a crane beam, limitation is more, assembly bottleneck is caused, and assembly capacity and efficiency are limited.

SUMMERY OF THE UTILITY MODEL

To above technical problem, the utility model discloses the technological effect that will reach provides a hoist and mount convenience, uses manpower sparingly, reduces the assembly degree of difficulty and can improve the balanced hanging beam of main shaft assembly of assembly productivity simultaneously.

For solving the technical problem, a main shaft assembly balance hanging beam, including the girder steel, the top surface both ends symmetry of girder steel is provided with lug A, lug B, girder steel bottom surface both ends symmetry is provided with lug C, lug D, on lug A, lug B, lug C, the lug D respectively fixed mounting have break-out A, break-out B, break-out C, break-out D, girder steel bottom surface middle part symmetry fixed mounting has the support.

Further, the length of the steel beam is 2-3 m.

Furthermore, the specifications of the shackle A, the shackle B, the shackle C and the shackle D are all 25T.

Compared with the prior art, the utility model has the following advantage:

1. the utility model discloses the device is provided with lug and break out through the symmetry on the top surface of girder steel and bottom surface, and the break out of top surface has realized being connected with the steady of crane, and the break out of bottom surface can be hung and connect the endless chain calabash that can carry out the accurate fine setting of main shaft height, makes the main shaft reduce the degree of difficulty by a wide margin with the shrink disk hole is adjusted well.

2. The utility model discloses the device can follow the crane beam direction and articulate, also can follow the perpendicular to crane beam direction and articulate, has realized that the main shaft assembly position is adjustable, has broken through the restriction of assembly station.

3. The utility model discloses the device is provided with the support through symmetry in girder steel bottom, can arrange main shaft assembly balance hanging beam level in subaerial, can conveniently dismantle suspender and ring chain hoist on ground, also can ensure simultaneously that main shaft assembly balance hanging beam can not cause parallel distortion because of placing.

4. The utility model discloses the device is provided with the shackle on the lug, and the accessible shackle is direct to be connected with the suspender, has avoided suspender and lug connection, causes the suspender to twist in the air, makes the balanced hanging beam of main shaft assembly be in unstable state in the air.

5. The utility model discloses the device has improved unit assembly efficiency, has promoted assembly quality, reduces the main shaft in the at utmost and dies the risk with the shrink disk card, avoids spare part to damage.

6. The utility model discloses the device can set up the assembly station in the ordinary workshop that does not have the 350T crane, has improved unit assembly productivity by a wide margin.

Drawings

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

fig. 2 is a left side view of the structure of the present invention.

In the figure: 1. shackle A, 2, lifting lugs A, 3, steel beams, 4, shackle B, 5, lifting lugs B, 6, lifting lugs D, 7, shackle D, 8, support, 9, lifting lugs C, 10 and shackle C.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

The main shaft assembly balance hanging beam shown in fig. 1 and 2 comprises a steel beam 3, wherein lifting lugs a2 and B5 are symmetrically arranged at two ends of the top surface of the steel beam 3, lifting lugs C9 and D6 are symmetrically arranged at two ends of the bottom surface of the steel beam 3, shackles a1, B5, C9 and D6 are respectively and fixedly mounted on the lifting lugs a2, B4, C10 and D7, and brackets 8 are symmetrically and fixedly mounted in the middle of the bottom surface of the steel beam 3; the length of the steel beam 3 is 2-3 m; the specifications of the shackle A1, the shackle B4, the shackle C10 and the shackle D7 are all 25T.

The utility model discloses a working process does: when the main shaft assembling balance hanging beam is placed on the horizontal ground, the shackle A1, the shackle B4, the shackle C10 and the shackle D7 are correctly arranged on the lifting lug A2, the lifting lug B5, the lifting lug C9 and the lifting lug D6, the shackle is ensured not to fall off from the lifting lug, hanging belts are respectively penetrated in the shackle A1 and the shackle B4, the hanging belts in the shackle A1 and the shackle B4 are ensured to be connected with a crane in an assembling workshop and not to fall off, a loop chain hoist can be hung on the shackle D7 or the shackle C10 according to the placement direction of the main shaft in an assembling station, stable hanging is ensured, then the crane is operated, the main shaft assembling balance hanging beam is hung right above an assembling machine set and stably stays in the air, at the moment, the hanging belts sleeved outside the main shaft big head are hung on the shackle C10 or the shackle D7 of the un-hung loop chain hoist and are ensured to be stably connected, the crane is sleeved outside the loop chain hoist of the main shaft assembling balance hanging beam, the main shaft is stably assembled, the balance hanging beam by operating the crane, and the, in the lifting process, adjusting a chain of the ring chain hoist and a hanging strip on the outer side of a big end of a main shaft to be arranged at a proper position of the main shaft, then operating a crane to lift the main shaft, moving the main shaft to a contraction disk of a gear box, arranging the main shaft and the gear box at the same horizontal position, enabling a small head of the main shaft and an inner hole of the contraction disk to be in a basic alignment state, then adjusting the length of the chain of the ring chain hoist, further adjusting the height of the small head of the main shaft, enabling the small head of the main shaft to be accurately aligned with the inner hole of the contraction disk, thereby realizing smooth insertion, and after the whole assembly work is finished, separating the ring chain hoist and the hanging strip from the main shaft; the utility model discloses the device makes main shaft and shrink dish hole adjust the degree of difficulty well by a wide margin and reduces, has realized simultaneously that main shaft assembly position is adjustable, has broken through the restriction of assembly station.

Claims

1. The utility model provides a balanced hanging beam of main shaft assembly, includes girder steel (3), its characterized in that: the steel beam is characterized in that lifting lugs A (2) and lifting lugs B (5) are symmetrically arranged at two ends of the top surface of the steel beam (3), lifting lugs C (9) and lifting lugs D (6) are symmetrically arranged at two ends of the bottom surface of the steel beam (3), a shackle A (1), a shackle B (4), a shackle C (10) and a shackle D (7) are respectively and fixedly arranged on the lifting lugs A (2), the lifting lugs B (5), the lifting lugs C (9) and the lifting lugs D (6), and a support (8) is symmetrically and fixedly arranged in the middle of the bottom surface of the steel beam (3).

2. The balance hanging beam for assembling the main shaft according to claim 1, which is characterized in that: the length of the steel beam (3) is 2-3 m.

3. The balance hanging beam for assembling the main shaft according to claim 1, which is characterized in that: the specifications of the shackle A (1), the shackle B (4), the shackle C (10) and the shackle D (7) are all 25T.