CN107742958A - A device for dismantling slip rings of wind power generators - Google Patents

Abstract

A device for dismantling a slip ring of a wind power generator is composed of a dismantling bracket, a screw, a top plate, a jack, and an outer plate of a slip ring; the device has a simple structure, is convenient to work and disassemble, has high contact safety among various parts of the device, and has strong protection measures ; High efficiency and safe operation; high disassembly efficiency, saving working time; the appropriate number of screws can be selected according to the size of the slip ring.

Description

A device for dismantling slip rings of wind power generators

technical field

The invention belongs to the field of dismantling devices for wind power generators, and more specifically relates to a device for dismantling slip rings of wind power generators.

Background technique

At present, the generator slip rings of large-scale double-fed wind turbines still often fail. Since the generator slip rings are connected to the generator bearings through nesting, it is difficult to disassemble the generator slip rings by manpower. The existing working methods often require The generator is taken out as a whole, and the entire generator is returned to the factory for overhaul. Large-scale mechanical equipment is used to dismantle the generator slip ring. The replacement time is long, which affects the availability of the equipment and affects the power generation.

Contents of the invention

The purpose of the present invention is to design a device for dismantling slip rings of wind power generators, which can make up for the deficiencies of the prior art, and is a large-scale double-fed wind power generator that is simple, high in work efficiency, safe in operation, and saves working time Slip ring dismantling device.

The technical solution of the present invention: a device for dismounting slip rings of wind power generators, including fan bearings, is characterized in that it includes dismounting brackets, screws, jacking plates, jacks and slip ring outer discs; wherein, the slip ring outer discs are There is a slip ring outer disk hole, and the top disk has a top disk inner hole; the slip ring outer disk and the top disk are connected by a screw passing through the slip ring outer disk hole and the top disk inner hole; the jack is installed on the disassembly bracket and the top disk. Between the top plate, the generator slip ring is separated from the generator through the lifting of the jack; the disassembly bracket is connected with the fan bearing.

The bottom of the top plate is equipped with a guard plate, and the width of the guard plate should be greater than the width of the end of the jack near the top plate, so as to protect the top plate and prevent the jack from damaging the top plate during use.

There are no less than two slip ring outer disc holes on the slip ring outer disc, which are threaded holes drilled on the slip ring outer disc with a threaded electric drill; the slip ring outer disc holes are evenly distributed around the center of the slip ring outer disc; The depth of the outer disc hole of the slip ring should be less than 1/2 of the thickness of the outer disc of the slip ring.

The top plate is in the shape of a round cake; the inner hole of the top plate on the top plate is a threaded hole, and corresponds to the distribution position and quantity of the holes of the outer plate of the slip ring; the inner hole of the top plate and the hole of the outer plate of the slip ring are respectively It is connected by screws; the number of the screws is the same as that of the inner holes of the top plate and the holes of the outer plate of the slip ring.

The diameter of the top plate should be greater than the diameter of the circle surrounded by the aperture of the outer plate of the slip ring; the thickness of the top plate should not be less than 40mm.

One end of the screw is connected to the hole of the outer disc of the slip ring, and the other end passes through the inner hole of the top disc, and the screw is tightly connected to the top disc through a nut; the distance between the screw and the outer disc of the slip ring should be greater than The sum of the length of the demolition bracket and the limit height of the jack.

There are 6 inner holes of the top plate and 6 holes of the outer plate of the slip ring, and 6 screw rods; one end of the 6 screws is connected with the outer plate of the slip ring, and the other end passes through the top plate and is fixed with a nut.

There is a gasket between the nut and the screw rod to protect the screw rod.

The outer diameter of the screw rod is not less than 20 mm, and the screw rod needs a certain strength during the working process, which can ensure that no breakage occurs during the disassembly of the slip ring.

The circular hole depth of the outer disk hole of the slip ring is 12mm-18mm.

The outer diameter of the dismantling bracket is smaller than the inner diameter of the doubly-fed wind turbine slip ring; the thickness of the dismantling bracket is not less than 30mm, and it is required that the dismantling bracket and the top plate have a certain strength during the working process to ensure that the Removal of brackets and top plate without breakage.

During the pull-out process of the slip ring, there must be a circular 1t×2m hoisting belt to lift the slip ring, so as to prevent the generator shaft from being scratched when the slip ring is pulled out, and to prevent the shaft key from falling off.

The advantages of the present invention: simple structure, high working efficiency and safe operation; high disassembly efficiency, saving working time; appropriate number of screws can be selected according to the size of the slip ring; the gasket between the nut and the top plate has a protective effect ;The support frame protects and supports the whole set of equipment, which is convenient for disassembling the tooling and operates smoothly; there is a guard plate at the bottom of the top plate, which protects the top plate and prevents the top plate from being damaged during the working process of the jack.

Description of drawings

Fig. 1 is a schematic structural diagram of a device for removing slip rings of wind power generators according to the present invention.

Among them, 1 is the disassembly bracket; 2 is the screw; 3 is the top plate; 4 is the jack; 5 is the threaded electric drill; 6 is the fan bearing; 7 is the slip ring outer plate; 8 is the slip ring outer plate hole; 10 is a nut; 11 is a gasket; 12 is a guard plate; 13 is a slip ring.

detailed description

Embodiment: A device for dismantling slip rings of wind power generators (see Figure 1), including fan bearings 6, characterized in that it includes dismantling brackets 1, screws 2, top discs 3, jacks 4 and slip ring outer discs 7; Wherein, the slip ring outer disc 7 has a slip ring outer disc hole 8, and the top disc 3 has a top disc inner hole 9; the slip ring outer disc 7 and the top disc 3 pass through the slip ring outer disc hole through a screw 2 8 is connected to the inner hole 9 of the top plate; the jack 4 is installed between the disassembly bracket 1 and the top plate 3; the disassembly bracket 1 is connected to the fan bearing 6.

The bottom of the top plate 3 is equipped with a guard plate 12 (see FIG. 1 ), and the width of the guard plate 12 is greater than that of the end of the jack 4 close to the top plate 3 .

There are 6 slip ring outer disc holes 8 on the slip ring outer disc 7 (see Figure 1), which are threaded holes drilled on the slip ring outer disc 7 with a threaded electric drill 5; 7 is evenly distributed around the center; the depth of the slip ring outer disc hole 8 is less than 1/2 of the thickness of the slip ring outer disc 7 .

The top plate 3 is in the shape of a round cake (see Figure 1); the top plate inner hole 9 on the top plate 3 is a threaded hole, and corresponds to the distribution position and number of slip ring outer plate holes 8; The holes 9 and the outer disk holes 8 of the slip ring are respectively connected by screws 2; the number of the screws is the same as that of the inner holes 9 of the top disk and the holes 8 of the outer disk of the slip ring, which is also 6 (see Figure 1).

The diameter of the top disk 3 is larger than the diameter of the circle surrounded by the slip ring outer disk aperture 8; the thickness of the top disk 3 is not less than 40mm.

One end of the screw 2 (see Figure 1) is connected to the hole 8 of the outer disk of the slip ring, and the other end passes through the inner hole 9 of the top disk, and the screw 2 is fastened to the top disk 3 through a nut 10; the screw 2 is located at The distance between the outer disk 7 of the slip ring and the top disk 3 is greater than the sum of the length of the dismantling support 1 and the limit height of the jack 4 .

There are 6 inner holes 9 of the top plate and 8 holes 8 of the outer plate of the slip ring (see Figure 1), and 6 screws in 2 positions; one end of the 6 screws 2 is connected with the outer plate 7 of the slip ring, and the other end passes through the top plate Disc 3 and fastened with nut 10.

There is a gasket 11 (see FIG. 1 ) between the nut 10 and the screw 2 to protect the screw 2 .

The outer diameter of the screw 2 is not less than 20mm.

The circular hole depth of the outer disk hole 8 of the slip ring is 15mm.

The outer diameter of the disassembly bracket 1 is smaller than the inner diameter of the double-fed wind turbine slip ring; the thickness of the disassembly bracket 1 is not less than 30mm.

What are described above are only some embodiments of the present invention. Those skilled in the art can make some modifications and improvements without creative work, and these all belong to the protection scope of the present invention.

Claims (10)

1. A device for dismounting slip rings of wind power generators, comprising fan bearings (6), characterized in that it includes dismounting brackets (1), screw rods (2), top discs (3), jacks (4) and sliding ring outer disk (7); wherein, the slip ring outer disk (7) has a slip ring outer disk hole (8), and the top disk (3) has a top disk inner hole (9); the slip ring outer disk (7) ) and the top plate (3) are connected through the slip ring outer plate hole (8) and the top plate inner hole (9) through the screw rod (2); the jack (4) is installed on the disassembly bracket (1) and the top plate ( 3), there is a gasket (11) between the jack (4) and the top plate (3), and the generator slip ring is separated from the generator by lifting the jack (4); the disassembly bracket (1) and the fan The bearing (6) is connected. 2. A kind of equipment for dismounting slip rings of wind power generators according to claim 1, is characterized in that the bottom of said top plate (3) is equipped with guard plate (12), and the width of guard plate (12) should be greater than The width of the end of the jack (4) near the top plate (3). 3. A kind of equipment for dismounting the slip ring of wind power generator according to claim 1, characterized in that there are no less than (2) slip ring outer disc holes (8) on the slip ring outer disc (7), It is a threaded hole obtained by drilling the slip ring outer disc (7) with a threaded electric drill (5); the slip ring outer disc holes (8) are evenly distributed around the center of the slip ring outer disc (7); the slip ring outer disc holes The depth of (8) should be less than 1/2 of the thickness of slip ring outer disc (7). 4. according to claim 2, a kind of equipment for dismounting slip rings of wind-driven generators is characterized in that the top plate (3) is a round cake shape; the top plate inner hole on the top plate (3) ( 9) is a threaded hole, and corresponds to the distribution position and quantity of the slip ring outer disk holes (8); the top disk inner hole (9) and the slip ring outer disk hole (8) are respectively connected by a screw rod (2); The quantity of the screw rod is the same as the quantity of the top disc inner hole (9) and the outer disc hole (8) of the slip ring. 5. according to claim 4, a kind of equipment for dismounting slip ring of wind power generator, it is characterized in that the diameter of said top plate (3) should be greater than the diameter of the circle surrounded by slip ring outer disc aperture (8); The thickness of above-mentioned top plate (3) is not little 40mm. 6. A device for dismantling slip rings of wind power generators according to claim 4, characterized in that one end of the screw (2) is connected to the hole (8) on the outer disc of the slip ring, and the other end passes through the inner disc of the top disc. hole (9), and fasten the screw rod (2) to the top plate (3) through the nut (10); the distance between the screw rod (2) and the top plate (3) should be It is greater than the sum of the length of the dismantled support (1) and the limit height of the jack (4). 7. According to claim 6, a device for dismounting slip rings of wind power generators, characterized in that there are 6 inner holes (9) of the top plate and 6 holes (8) of the outer plate of the slip ring, and the screw rod (2) There are 6; one end of the 6 screw rods (2) is connected with the slip ring outer disk (7), and the other end passes through the top disk (3) and is fixed with a nut (10). 8. A device for disassembling slip rings of wind power generators according to claim 7, characterized in that there is a gasket (11) between the nut (10) and the screw (2). 9. A device for removing slip rings of wind power generators according to claim 8, characterized in that the outer diameter of the screw (2) is not less than 20 mm. 10. according to claim 6, a kind of equipment for dismantling slip ring of wind power generator, it is characterized in that the outer diameter of described dismounting bracket (1) is less than the inner diameter of doubly-fed wind power generator slip ring; Described dismounting bracket ( 1) The thickness is not less than 30mm; the depth of the circular hole (8) of the outer disk of the slip ring is 12mm-18mm.