CN221547203U

CN221547203U - Wind generating set maintenance device

Info

Publication number: CN221547203U
Application number: CN202420340020.2U
Authority: CN
Inventors: 岳晨阳; 吴亚丽
Original assignee: Zhangjiakou Fengtang New Energy Technology Co ltd
Current assignee: Zhangjiakou Fengtang New Energy Technology Co ltd
Priority date: 2024-02-23
Filing date: 2024-02-23
Publication date: 2024-08-16
Anticipated expiration: 2034-02-23

Abstract

The utility model discloses a maintenance device for a wind generating set, which comprises a pedal assembly, wherein the pedal assembly is fixed on a flange at the end part of a fixed shaft through a Z-shaped connecting rod and a connecting bolt, the pedal assembly comprises a middle pedal and two extension pedals, the extension pedals are hollow, two ends of the middle pedal are inserted into the extension pedals, the extension pedals are connected to the middle pedal through a sliding assembly, a plurality of equidistant locking holes are formed in the middle pedal and the sliding assembly along the length direction, a fixing hole is formed in the extension pedals, a bolt locking rod is inserted into the fixing hole, and the bolt locking rod penetrates through the locking hole and is fixed on the extension pedals through nuts. According to the utility model, the extension pedal is connected to the middle pedal in a sliding manner, and the bolt locking rod is fixed on different locking holes, so that the purpose of changing the length of the pedal assembly is achieved, the pedal can adapt to different shafting bolt distribution circle diameters, the application range is enlarged, and the equipment cost is reduced.

Description

Wind generating set maintenance device

Technical Field

The utility model relates to the technical field of wind power generation, in particular to a maintenance device for a wind generating set.

Background

The shafting of the direct-drive wind generating set is provided with a plurality of high-strength bolts which need to be operated frequently, and the bolts are required to be fastened no matter in the butt joint process of the generator, the base and the hub during hoisting or in the bolt moment checking work carried out every half year.

In the wind driven generator, a base (comprising a cabin), a generator (comprising a shafting assembly) and an impeller are hoisted step by step and are connected and fastened by high-strength bolts in sequence. The connecting bolts between the base and the generator shafting assembly, between the generator shafting assembly and the impeller, between the fixed shaft and the bearing outer ring in the shafting assembly and between the movable shaft and the bearing end cover are high-strength bolts, and the bolts all need daily inspection and maintenance.

Since the bolts are mostly distributed near the two ends of the fixed shaft, installation and maintenance personnel of the wind generating set in the prior art generally stand on the inner wall of the fixed shaft to fasten or maintain the bolts no matter when the wind generating set is hoisted or in daily maintenance. For bolts with lower positions, operators can operate easily, and for those high-strength bolts which are arranged on the left side, the right side and the upper side of the end part of the fixed shaft, the installation and maintenance personnel can only stand on the inner wall of the smooth fixed shaft coated with the anti-corrosion paint, so that the operation is very inconvenient. In addition, the diameters of the existing shafting bolt distribution circles are respectively as follows: 1.91 m, 2.4 m, 2.41 m, the latter two exceeding the ergonomically accepted limit of 1.95 m. In order to complete the work of bolt fastening, installation maintenance personnel climb to the rotor brake base from the inner wall of the fixed shaft to operate the hydraulic wrench to fasten the high-strength bolt. The pedal is fixed in the fixed shaft by the connecting rod, so that people can maintain the fixed shaft with larger diameter, most of the devices are fixed pedal lengths, different pedals are needed for different straight-down shafting bolt distribution circle diameters, the device is inconvenient to carry, and maintenance cost is increased.

Disclosure of utility model

The utility model aims to provide a maintenance device for a wind generating set, which solves the problems.

In order to solve the technical problems, the utility model adopts the following technical scheme:

The utility model relates to a maintenance device of a wind generating set, which comprises a pedal assembly, wherein the pedal assembly is fixed on a flange at the end part of a fixed shaft of the wind generating set through a Z-shaped connecting rod and a connecting bolt, and the pedal assembly is suspended in the fixed shaft, and is characterized in that: the pedal assembly comprises a middle pedal and two extension pedals, the extension pedals are hollow, two ends of the middle pedal are inserted into the extension pedals, the extension pedals are slidably connected to the middle pedal through sliding assemblies, a plurality of equidistant locking holes are formed in the middle pedal and the sliding assemblies in the length direction, fixing holes are formed in the extension pedals, bolt locking rods are inserted into the fixing holes, and the bolt locking rods penetrate through the locking holes and are fixed to the extension pedals through nuts.

Further, the sliding assembly comprises sliding rails fixed on the front end face and the rear end face of the middle pedal, a sliding groove is formed in the inner wall of the extension pedal, and the sliding rails are in sliding connection with the sliding grooves.

Furthermore, the middle pedal and the extension pedal are provided with lightening holes.

Further, the top of the end face, close to the two extension pedals, of the extension pedals is connected with an inclined plate, and the bottom of the inclined plate is attached to the top face of the middle pedal.

Further, a baffle is connected to the top of one end of the extension pedal, which is far away from the middle pedal.

Furthermore, the top surfaces of the middle pedal and the extension pedal are respectively provided with an anti-slip layer.

Compared with the prior art, the utility model has the beneficial technical effects that:

According to the utility model, the extension pedal is connected to the middle pedal in a sliding manner, and the bolt locking rod is fixed on different locking holes, so that the purpose of changing the length of the pedal assembly is achieved, the pedal can adapt to different shafting bolt distribution circle diameters, the application range is enlarged, and the equipment cost is reduced.

Drawings

The utility model is further described with reference to the following description of the drawings.

FIG. 1 is a top plan view of a pedal assembly of a wind turbine maintenance device of the present utility model;

FIG. 2 is a front view of the pedal assembly;

FIG. 3 is a side view of an extension pedal;

Reference numerals illustrate: 1. a Z-shaped connecting rod; 2. a connecting bolt; 3. an intermediate pedal; 4. an extension pedal; 5. a locking hole; 6. a bolt locking lever; 7. a nut; 8. a slide rail; 9. a chute; 10. a lightening hole; 11. a sloping plate; 12. and a baffle.

Detailed Description

As shown in fig. 1-3, a maintenance device for a wind generating set comprises a pedal assembly, wherein the pedal assembly is fixed to a flange at the end of a fixed shaft of the wind generating set through a Z-shaped connecting rod 1 and a connecting bolt 2, and the pedal assembly is suspended and supported inside the fixed shaft.

The pedal assembly comprises a middle pedal 3 and two extension pedals 4, the extension pedals 4 are hollow, two ends of the middle pedal 3 are inserted into the extension pedals 4, the extension pedals 4 are slidably connected to the middle pedal 3 through sliding assemblies, the sliding assemblies comprise sliding rails 8 fixed on front and rear end faces of the middle pedal 3, sliding grooves 9 are formed in the inner walls of the extension pedals 4, and the sliding rails 8 are slidably connected to the sliding grooves 9.

The middle pedal 3 and the sliding component are provided with a plurality of equidistant locking holes 5 along the length direction, the extension pedal 4 is provided with a fixing hole, a bolt locking rod 6 is inserted into the fixing hole, and the bolt locking rod 6 penetrates through the locking hole 5 and then is fixed on the extension pedal 4 through a nut 7.

The middle pedal 3 and the extension pedal 4 are provided with lightening holes 10.

The top of the end face, which is close to the two extension pedals 4, is connected with a sloping plate 11, and the bottom of the sloping plate 11 is attached to the top surface of the middle pedal 3, so that workers are prevented from being stumbled by the extension pedals 4 when transferring from the middle pedal 3 to the extension pedals 4. The top of one end of the extension pedal 4, which is far away from the middle pedal 3, is connected with a baffle 12, so that workers are prevented from dropping the extension pedal 4.

The top surfaces of the middle pedal 3 and the extension pedal 4 are respectively provided with an anti-slip layer.

The above embodiments are only illustrative of the preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model, and various modifications and improvements made by those skilled in the art to the technical solutions of the present utility model should fall within the protection scope defined by the claims of the present utility model without departing from the design spirit of the present utility model.

Claims

1. The utility model provides a wind generating set maintenance device, includes the footboard subassembly, the footboard subassembly is fixed to wind generating set's dead axle tip flange through Z type connecting rod (1) and connecting bolt (2), the unsettled frame of footboard subassembly is in its characterized in that: the pedal assembly comprises a middle pedal (3) and two extension pedals (4), the extension pedals (4) are hollow, two ends of the middle pedal (3) are inserted into the extension pedals (4), the extension pedals (4) are slidably connected with the middle pedal (3) through sliding assemblies, a plurality of equidistant locking holes (5) are formed in the middle pedal (3) and the sliding assemblies in the length direction, fixing holes are formed in the extension pedals (4), bolt locking rods (6) are inserted into the fixing holes, and the bolt locking rods (6) penetrate through the locking holes (5) and then are fixed on the extension pedals (4) through nuts (7).

2. The wind turbine maintenance device of claim 1, wherein: the sliding assembly comprises sliding rails (8) fixed on the front end face and the rear end face of the middle pedal (3), sliding grooves (9) are formed in the inner wall of the extension pedal (4), and the sliding rails (8) are in sliding connection with the sliding grooves (9).

3. The wind turbine maintenance device of claim 1, wherein: weight reducing holes (10) are formed in the middle pedal (3) and the extension pedal (4).

4. The wind turbine maintenance device of claim 1, wherein: the top of one end face, which is close to the two extension pedals (4), is connected with an inclined plate (11), and the bottom of the inclined plate (11) is attached to the top surface of the middle pedal (3).

5. The wind turbine maintenance device of claim 1, wherein: one end top of the extension pedal (4) far away from the middle pedal (3) is connected with a baffle plate (12).

6. The wind turbine maintenance device of claim 1, wherein: the top surfaces of the middle pedal (3) and the extension pedal (4) are respectively provided with an anti-slip layer.