CN110510219A - A device for wind turbine bearing protection - Google Patents

Abstract

The present invention provides a kind of devices for bearing of wind power generator protection; it include: anchor ear; it is formed by connecting including being symmetrical arranged two and half anchor ear make-ups; half anchor ear includes circular arc type ontology and has each extended over the first connecting plate and the second connecting plate outward by the both ends of ontology; first connecting plate of two and half anchor ears connects, the second connecting plate connection of two and half anchor ears；Flank is outward extended with flank by the lateral wall of half anchor ear, and the end of flank is equipped with waist-shaped hole, and Lengthened bolt is equipped with two, is fixed on generator end cover board by the waist-shaped hole on the flank of anchor ear two sides respectively.The present invention utilizes hooping structure, is effectively prevented the damage of colliding with of generator bearing during transportation axially and radially.

Description

A device for wind turbine bearing protection

technical field

The invention belongs to the field of bearing protection devices, and more particularly relates to a device for bearing protection of wind turbines.

Background technique

During the transportation of the wind turbine, it is necessary to use the bearing protection device to fix the bearing and the generator end cover to prevent the bearing from being damaged by bumping. The original channel steel structure has insufficient protection to the radial direction of the bearing, and the structure needs to be changed to protect the generator bearing.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a device for protecting the bearing of a wind turbine, which can avoid the impact damage of the bearing.

According to one aspect of the present invention, a device for protecting a wind turbine bearing is provided, comprising:

The hoop comprises two half-hoops that are symmetrically arranged and connected to each other, and the half-hoop comprises an arc-shaped body and a first connecting plate and a second connecting plate respectively extending outward from both ends of the body, The first connecting plates of the two half-embracing hoops are connected, and the second connecting plates of the two half-embracing hoops are connected;

The side wings are provided with side wings extending outward from the outer side walls of the half-hoop, and the ends of the side wings are provided with waist-shaped holes,

There are two elongated bolts, which are respectively fixed on the generator end cover through the waist-shaped holes on the flanks on both sides of the hoop.

In some embodiments, the inner ring of the hoop is inlaid with a copper skin protective layer with a thickness of 3 mm.

In some embodiments, a reinforcing rib is provided on the side flank, the reinforcing rib is arranged along the axial direction of the side flank, and the center line of the waist-shaped hole and the reinforcing rib are located on a straight line.

In some embodiments, threaded holes for accommodating hexagon head bolts are respectively opened on the first connecting plates of the two half-hoops, and the hexagonal head bolts pass through the two first connecting plates in sequence. In the threaded hole threaded connection of the hexagonal nut, a spring washer is provided between the head of the hexagonal head bolt and one of the first connecting plates.

In some embodiments, threaded holes for accommodating hexagon head bolts are respectively opened on the second connecting plates of the two half-hoops, and the hexagonal head bolts pass through the two second connecting plates in sequence. In the threaded hole screw connection of the hexagonal nut, a spring washer is provided between the head of the hexagonal head bolt and one of the second connecting plates.

Its beneficial effects are: the present invention improves the previous channel steel structure into a hoop type structure, the inner ring of the hoop is inlaid with a 3mm thick copper skin protective layer, and two screw holes are respectively opened on the upper and lower planes of the hoop so that bolts and washers can be used. and nuts to fasten the hoop, and at the same time weld the flanks on both sides of the hoop, open waist-shaped holes on both sides of the flanks to connect the device with the generator end cover with extended bolts, and weld reinforcing ribs on both sides of the flanks for reinforcement.

The invention utilizes the hoop structure to effectively prevent the axial and radial bump damage of the generator bearing during transportation.

After the improvement of the invention, the axial and radial collision damage of the bearing of the generator during transportation can be effectively prevented, and the product quality of the generator is guaranteed.

Description of drawings

FIG. 1 is a schematic front view of a bearing protection device for wind turbines according to an embodiment of the present invention;

2 is a schematic side view of a bearing protection device for wind turbines according to an embodiment of the present invention;

3 is a schematic structural diagram of an extension bolt for fixing a wind turbine bearing protection device to an end cover of a generator according to an embodiment of the present invention.

Detailed ways

The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

Figures 1 and 2 schematically show a device for bearing protection of a wind turbine according to an embodiment of the present invention. As shown in FIG. 1 and FIG. 2 , the device for protecting the bearing of a wind turbine includes a hoop 1 , side wings 3 and extension bolts 8 .

The hoop 1 comprises two symmetrically arranged half-hoops 1 and the half-hoops are connected to each other. The half-embracing hoop 1 comprises a circular arc-shaped body and a first connecting plate and a second connecting plate respectively extending outward from both ends of the body. The shape of the cavity formed by the arc-shaped bodies of the two half hoops and 1 half hoops matches the outer contour of the bearing, so that the bearing can be placed in the cavity formed by the two half hoops and 1 half hoops more stably. in the body. The inner ring of the hoop 1 is inlaid with a copper skin protection layer 2 with a thickness of 3mm. Specifically, the inner wall of the cavity formed by the arc-shaped bodies of the two half-hoop 1 and the half-hoop is provided with a 3 mm copper skin protection layer 2 . The first connecting plates of the two half-hoops 1 and the half-hoops are connected by hexagon head bolts 5 , hexagon nuts 7 and spring washers 6 . Two threaded holes for accommodating the passage of the hexagon head bolts 5 are respectively opened on the first connecting plates of the two half-hoops. The hexagonal head bolts 5 pass through the threaded holes on the two first connecting plates in turn and are threadedly connected to the middle of the hexagonal nuts 7 . A spring washer 6 is provided between the head of the hexagon head bolt 5 and one of the first connecting plates. The second connecting plates of the two half-hoop 1 and the half-hoop are connected by hexagon head bolts 5 , hexagon nuts 7 and spring washers 6 . The second connecting plates of the two half-hoops are respectively provided with two threaded holes for accommodating the passage of the hexagonal head bolts 5, and the hexagonal head bolts 5 pass through the threaded holes on the two second connecting plates in turn and are threadedly connected to the hexagonal nuts 7. In the middle, a spring washer 6 is provided between the head of the hexagon head bolt 5 and one of the second connecting plates.

There are side wings 3 extending outward from the outer side wall of the half-hoop, so that two sides of the hoop 1 are respectively provided with a side wing 3 . The flanks 3 are in the shape of a rectangular plate. The ends of the side wings 3 are provided with waist-shaped holes. The side wings 3 are provided with reinforcing ribs 4 , which are arranged along the axial direction of the side wings 3 , and the center line of the waist-shaped hole and the reinforcing ribs 4 are located on a straight line. Two extension bolts 8 are provided. The two extension bolts 8 are respectively fixed on the generator end cover plate through the waist-shaped holes on the side wings 3 on both sides of the hoop 1 .

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them; although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand: The specific embodiments of the invention are modified or some technical features are equivalently replaced; without departing from the spirit of the technical solutions of the present invention, all of them should be included in the scope of the technical solutions claimed in the present invention.

Claims (5)

1. A device for wind turbine bearing protection, characterized in that, comprising: The hoop comprises two half-hoops that are symmetrically arranged and connected to each other, and the half-hoop comprises an arc-shaped body and a first connecting plate and a second connecting plate respectively extending outward from both ends of the body, The first connecting plates of the two half-embracing hoops are connected, and the second connecting plates of the two half-embracing hoops are connected; The side wings are provided with side wings extending outward from the outer side walls of the half-hoop, and the ends of the side wings are provided with waist-shaped holes, There are two elongated bolts, which are respectively fixed on the generator end cover through the waist-shaped holes on the flanks on both sides of the hoop. 2 . The device for protecting a wind turbine bearing according to claim 1 , wherein the inner ring of the hoop is inlaid with a copper skin protection layer with a thickness of 3 mm. 3 . 3 . The device for protecting a wind turbine bearing according to claim 1 , wherein a reinforcing rib is provided on the side wing, and the reinforcing rib is arranged along the axial direction of the side wing. The center line is on a straight line with the reinforcing rib. 4. The device for wind turbine bearing protection according to claim 1, wherein the first connecting plates of the two half-hoops are respectively provided with threaded holes for accommodating hexagon head bolts to pass through. The hexagonal head bolts pass through the threaded holes on the two first connecting plates in sequence to connect the hexagonal nuts, and a spring washer is provided between the head of the hexagonal head bolt and one of the first connecting plates. 5. The device for protecting a wind turbine bearing according to claim 1, wherein the second connecting plates of the two half-hoops are respectively provided with threaded holes for accommodating hexagon head bolts to pass through. The hexagonal head bolts pass through the threaded holes on the two second connecting plates in turn to be threadedly connected to the hexagonal nuts, and a spring washer is provided between the head of the hexagonal head bolt and one of the second connecting plates.