CN211668764U

CN211668764U - Bearing fault diagnosis device for wind driven generator

Info

Publication number: CN211668764U
Application number: CN202020669482.0U
Authority: CN
Inventors: 刘雨佳; 高鹏; 蔡芳菲; 吕娜; 孙塽
Original assignee: Hunan Nonferrous Metals Vocational and Technical College
Current assignee: Hunan Nonferrous Metals Vocational and Technical College
Priority date: 2020-04-28
Filing date: 2020-04-28
Publication date: 2020-10-13
Anticipated expiration: 2030-04-28

Abstract

The utility model discloses a aerogenerator bearing fault diagnosis device, including supporting base, range finding chi strip, eccentric wheel and spring bottom plate, it has the diagnosis box to support welded fastening directly over the base, and is provided with the detection box directly over the diagnosis box, the outside of detecting the box is run through and is provided with the rotation axis, and the left and right sides of rotation axis is provided with the reference column, the bottom of reference column is connected with the rectangle spout, and the outside welded fastening of reference column has the metal paster, the left and right sides welded fastening of detection box has the equipment support, and the outside welded fastening of equipment support has the rectangle slide rail, range finding chi strip welded fastening is in the equipment support outside, and the outside of equipment support is connected with bellows. According to the wind driven generator bearing fault diagnosis device, the ball screw and the positioning column are adopted, the ball screw is utilized to drive the air box to horizontally move, and the distance between the air box and the wind driven generation fan blades is adjusted according to the operation requirement of the wind driven generator.

Description

Bearing fault diagnosis device for wind driven generator

Technical Field

The utility model relates to a aerogenerator equipment technical field specifically is a aerogenerator bearing fault diagnosis device.

Background

The wind generating set is generally divided into a double-fed type, a direct-drive type and a mixed type, various bearings are widely applied to the wind generating set, the traditional double-fed type fan with the largest number of bearings and the most complete type is applied, and the number of the bearings applied to one wind generating set can reach 32, so that the best bearing is very important for ensuring the safe and stable operation of the wind generating set.

At present aerogenerator's bearing is at the test procedure, and the device is only to bearing self make the diagnosis, but aerogenerator generally installs in spacious place, and external environment has great influence to the bearing operation, and current equipment is difficult to simulate external environment, leads to unable quick the trouble to the bearing to test, and the bearing is at the test procedure, and the device is difficult to fix the bearing frame according to the diameter of bearing, lead to different bearing frame in the test, the not hard up condition takes place easily for the bearing frame.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a wind generator bearing fault diagnosis device to solve and provide among the above-mentioned background art and current equipment is difficult to simulate external environment, lead to unable quick the trouble to the bearing to test, the device is difficult to fix the bearing frame according to the diameter of bearing, leads to different bearing frame in the test, and the problem of the not hard up condition takes place easily for the bearing frame.

In order to achieve the purpose, the utility model provides a wind driven generator bearing fault diagnosis device, which comprises a support base, a distance measuring ruler strip, an eccentric wheel and a spring bottom plate, wherein a diagnosis box body is fixedly welded right above the support base, a detection box body is arranged right above the diagnosis box body, a rotating shaft is arranged on the outer side of the detection box body in a penetrating way, positioning columns are arranged on the left side and the right side of the rotating shaft, a rectangular chute is connected to the bottom of each positioning column, a metal patch is fixedly welded on the outer side of each positioning column, an equipment support is fixedly welded on the left side and the right side of the detection box body, a rectangular slide rail is fixedly welded on the outer side of the equipment support, a wind box is connected on the outer side of the equipment support, a driving motor is arranged on the outer side of the equipment support in a penetrating way, and the output end of, the outer side of the conical gear is connected with a ball screw in an embedded mode, the outer side of the ball screw is connected with a rectangular sliding block in a threaded mode, the inner portion of the air box is connected with a blower fan blade in an embedded mode, and the outer side of the positioning column penetrates through a threaded hole.

Preferably, the detection box body and the equipment support are welded into an integral structure, the detection box body and the air box are parallel to each other, and the equipment support and the distance measuring ruler strip are attached to each other.

Preferably, the diameter of the detection box body is smaller than the width of the diagnosis box body, and the top of the diagnosis box body adopts a rectangular open type structure.

Preferably, the bellows and the rectangular sliding block form a sliding structure through an equipment support, a bevel gear and a rectangular sliding rail, the number of the equipment supports and the number of the bellows are two, and the whole equipment support is of a T-shaped structure.

Preferably, the eccentric wheel, the spring bottom plate, the driving motor and the detection box body form a vibration structure, the output end of the driving motor is connected with the eccentric wheel, and the spring bottom plate is arranged right below the eccentric wheel.

Preferably, the threaded hole runs through the setting in the reference column outside, and the reference column passes through rectangle spout and metal patch with detecting the box and is connected to the length of reference column is less than the rotating shaft length.

Compared with the prior art, the beneficial effects of the utility model are that: the wind power generator bearing fault diagnosis device comprises a wind power generator bearing,

1. the ball screw and the positioning columns are adopted, the ball screw is used for driving the air box to horizontally move, the distance between the air box and the fan blades of the wind power generation is adjusted according to the operation requirement of the wind power generator, further, the bearing under different wind power operations can be conveniently diagnosed and tested, the positioning columns are used for fixing the bottom of the bearing seat, and the distance between the positioning columns can be conveniently adjusted according to the diameter of the bearing seat;

2. the spring bottom plate and the eccentric wheel are adopted, the eccentric wheel is used for vibrating the surface of the spring bottom plate, and then the vibration amplitude of the bearing and the fan blade in the rotating process is simulated, so that the problem that the bearing cannot diagnose under a specific condition in the operation process is avoided.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic side view of the equipment stand according to the present invention;

FIG. 3 is a schematic view of the internal structure of the equipment rack of the present invention;

fig. 4 is the utility model discloses detect box and just cut open structure schematic diagram.

In the figure: 1. a support base; 2. diagnosing the box body; 3. detecting the box body; 4. a rotating shaft; 5. a positioning column; 6. a rectangular chute; 7. an equipment support; 8. a rectangular slide rail; 9. a distance measuring ruler strip; 10. an air box; 11. a drive motor; 12. a ball screw; 13. a rectangular slider; 14. a blower fan blade; 15. a bevel gear; 16. an eccentric wheel; 17. a spring bottom plate; 18. a metal patch; 19. a threaded bore.

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.

Referring to fig. 1-4, the present invention provides a technical solution: a wind driven generator bearing fault diagnosis device comprises a supporting base 1, a diagnosis box body 2, a detection box body 3, a rotating shaft 4, positioning columns 5, a rectangular sliding groove 6, an equipment support 7, a rectangular sliding rail 8, a distance measuring ruler strip 9, an air box 10, a driving motor 11, a ball screw 12, a rectangular sliding block 13, a blowing fan blade 14, a bevel gear 15, an eccentric wheel 16, a spring bottom plate 17, metal patches 18 and a threaded hole 19, wherein the diagnosis box body 2 is fixedly welded right above the supporting base 1, the detection box body 3 is arranged right above the diagnosis box body 2, the rotating shaft 4 penetrates through the outer side of the detection box body 3, the positioning columns 5 are arranged on the left side and the right side of the rotating shaft 4, the rectangular sliding groove 6 is connected to the bottom of the positioning columns 5, the metal patches 18 are fixedly welded on the outer side of the positioning columns 5, the equipment support, and the outside welded fastening of equipment support 7 has rectangular slide rail 8, and range finding chi strip 9 welded fastening is in the equipment support 7 outside, and the outside of equipment support 7 is connected with bellows 10, and the outside of equipment support 7 runs through and is provided with driving motor 11, and driving motor 11's output is connected with conical gear 15, and the outside nested connection of conical gear 15 has ball 12, and ball 12's outside threaded connection has rectangular slider 13, and the inside nested connection of bellows 10 has blower fan leaf 14, and the outside of reference column 5 runs through and sets up threaded hole 19.

Detect box 3 and equipment support 7 welding formula structure as an organic whole, and detect box 3 and bellows 10 for being parallel to each other to equipment support 7 and range finding chi strip 9 are for laminating each other, utilize range finding chi strip 9 to calculate the moving distance of bellows 10, the convenience of hoisting device debugging.

The diameter of the detection box body 3 is smaller than the width of the diagnosis box body 2, the top of the diagnosis box body 2 is of a rectangular opening type structure, and the diagnosis box body 2 is used for collecting the rotating data of the bearing, so that the stability of the equipment in assembling and adjusting is ensured.

The air boxes 10 and the rectangular sliding blocks 13 form a sliding structure through the equipment support 7, the bevel gears 15 and the rectangular sliding rails 8, the number of the equipment support 7 and the number of the air boxes 10 are two, the whole equipment support 7 is of a T-shaped structure, the distance between the air boxes 10 can be conveniently adjusted according to the diameter of a bearing, and further the rotating speed of the fan blades can be adjusted.

The eccentric wheel 16, the spring bottom plate 17, the driving motor 11 and the detection box body 3 form a vibration structure, the output end of the driving motor 11 is connected with the eccentric wheel 16, the spring bottom plate 17 is arranged under the eccentric wheel 16, the eccentric wheel 16 vibrates the outer side of the detection box body 3, and then the vibration amplitude in the bearing operation process is simulated, so that the fault of the bearing can be further detected conveniently.

Threaded hole 19 runs through the setting in the reference column 5 outside, and reference column 5 with detect box 3 and pass through rectangle spout 6 and metal paster 18 and be connected to the length of reference column 5 is less than rotation axis 4 length, fixes reference column 5 through metal paster 18, ensures reference column 5 at spacing in-process stability.

The working principle is as follows: when the wind driven generator bearing fault diagnosis device is used, according to the method shown in fig. 1 to 4, an operator firstly pulls the positioning columns 5 according to the diameter of the bearing seat, the positioning columns 5 slide in the rectangular sliding grooves 6, bolts are inserted into the metal patches 18, the bottoms of the positioning columns 5 are fixed by the metal patches 18, then the bearing seats are inserted into the two groups of positioning columns 5, the bearings are nested on the outer sides of the rotating shafts 4, then the fan blades for simulation are fixed on the outer sides of the rotating shafts 4, the operator installs the fourier transformer and the digital anti-mixing filter in the diagnosis box body 2, the digital anti-mixing filter and the fan blades for simulation are connected, and the vibration state of the bearings is remotely monitored in real time on line;

as shown in fig. 1 to 3, the driving motor 11 is turned on according to the diameter of the bearing, the driving motor 11 drives the bevel gear 15 to rotate, the bevel gear 15 drives the left and right bevel gears 15 and the ball screw 12 to rotate, the ball screw 12 drives the rectangular slider 13 and the bellows 10 to move, the operator controls the moving position of the bellows 10 through the distance measuring ruler bar 9, the blower fan blade 14 inside the bellows 10 blows the outside of the fan blade, the wind turbine drives the bearing to rotate, and the operation data of the bearing is collected by the detection data.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a aerogenerator bearing fault diagnosis device, includes support base (1), range finding chi strip (9), eccentric wheel (16) and spring bottom plate (17), its characterized in that: a diagnosis box body (2) is fixedly welded right above the supporting base (1), a detection box body (3) is arranged right above the diagnosis box body (2), a rotating shaft (4) penetrates through the outer side of the detection box body (3), positioning columns (5) are arranged on the left side and the right side of the rotating shaft (4), a rectangular sliding groove (6) is connected to the bottom of each positioning column (5), a metal patch (18) is fixedly welded on the outer side of each positioning column (5), an equipment support (7) is fixedly welded on the left side and the right side of the detection box body (3), a rectangular sliding rail (8) is fixedly welded on the outer side of the equipment support (7), a distance measuring ruler strip (9) is fixedly welded on the outer side of the equipment support (7), an air box (10) is connected to the outer side of the equipment support (7), and a driving motor (11) is arranged through the outer side, and the output end of the driving motor (11) is connected with a bevel gear (15), the outer side of the bevel gear (15) is connected with a ball screw (12) in an embedded mode, the outer side of the ball screw (12) is connected with a rectangular sliding block (13) in a threaded mode, the inner portion of the air box (10) is connected with a blower fan blade (14) in an embedded mode, and the outer side of the positioning column (5) penetrates through a threaded hole (19).

2. A bearing fault diagnosis apparatus for a wind turbine according to claim 1, wherein: the detection box body (3) and the equipment support (7) are welded into an integral structure, the detection box body (3) and the air box (10) are parallel to each other, and the equipment support (7) and the distance measuring ruler strip (9) are attached to each other.

3. A bearing fault diagnosis apparatus for a wind turbine according to claim 1, wherein: the diameter of the detection box body (3) is smaller than the width of the diagnosis box body (2), and the top of the diagnosis box body (2) adopts a rectangular opening type structure.

4. A bearing fault diagnosis apparatus for a wind turbine according to claim 1, wherein: the air box (10) and the rectangular sliding block (13) form a sliding structure through the equipment support (7), the bevel gear (15) and the rectangular sliding rail (8), the number of the equipment support (7) and the number of the air box (10) are two, and the whole equipment support (7) is of a T-shaped structure.

5. A bearing fault diagnosis apparatus for a wind turbine according to claim 1, wherein: the vibration detection device is characterized in that the eccentric wheel (16), the spring bottom plate (17), the driving motor (11) and the detection box body (3) form a vibration structure, the output end of the driving motor (11) is connected with the eccentric wheel (16), and the spring bottom plate (17) is arranged under the eccentric wheel (16).

6. A bearing fault diagnosis apparatus for a wind turbine according to claim 1, wherein: the threaded hole (19) penetrates through the positioning column (5) in the outer side, the positioning column (5) and the detection box body (3) are connected through the rectangular sliding groove (6) and the metal patch (18), and the length of the positioning column (5) is smaller than that of the rotating shaft (4).