CN112589625A

CN112589625A - Wind driven generator rotor bearing position repairing device and repairing process

Info

Publication number: CN112589625A
Application number: CN202011300982.8A
Authority: CN
Inventors: 葛领
Original assignee: Suzhou Aokexin Metal Repair Technology Co ltd
Current assignee: Suzhou Aokexin Metal Repair Technology Co ltd
Priority date: 2020-11-19
Filing date: 2020-11-19
Publication date: 2021-04-02

Abstract

The invention discloses a wind driven generator rotor bearing position repairing device and a repairing process, and the technical scheme is as follows: the method comprises the following steps: the mounting plate is fixedly arranged in the motor tower and is fixedly arranged above the rotor bearing shaft; a grinding mechanism for grinding the rotor bearing shaft; the first moving mechanism is used for driving the polishing mechanism to move in the horizontal direction; the second moving mechanism is used for driving the polishing mechanism to move in the vertical direction; the power mechanism is used for driving the grinding mechanism to run; the supporting mechanism is used for guaranteeing the stability of the polishing mechanism during polishing; the effect of carrying out accurate restoration of polishing to the restoration position, the mobility is superior, reduces the maintenance cost and eliminates safety risk when hoist and mount are maintained.

Description

Wind driven generator rotor bearing position repairing device and repairing process

Technical Field

The invention belongs to the field of a wind driven generator rotor bearing position repairing device and a repairing process, and particularly relates to a wind driven generator rotor bearing position repairing device and a repairing process.

Background

Wind power generation is a power machine which converts wind energy into mechanical work, and is also called a windmill; in a broad sense, the heat energy utilization engine takes the sun as a heat source and takes the atmosphere as a working medium. Wind power generation utilizes natural energy. The power generation is much better than that of diesel oil. But is inferior to diesel generators if used in an emergency. Wind power generation cannot be regarded as a standby power supply, but can be used for a long time; the principle of wind power generation is that wind power drives windmill blades to rotate, and then the rotating speed is increased through a speed increaser, so that a generator is promoted to generate electricity. According to the current windmill technology, the breeze speed (breeze degree) of about three meters per second can start to generate electricity; wind power generation is forming a hot tide in the world because it has no fuel problems and does not produce radiation or air pollution.

The device comprises a polishing device and a mounting support, one end of the mounting support is connected to the side face of a yawing brake caliper, the other end of the mounting support is connected with the polishing device, the polishing device comprises a metal bottom sheet and a polishing piece, the polishing piece is used for contacting and polishing the yawing brake disc of the fan, the lower surface of the polishing piece is fixedly arranged close to the upper surface of the metal bottom sheet, and after the polishing piece is used up due to friction, the yawing brake disc of the fan is in contact with the metal bottom sheet to be communicated with an alarm circuit.

Above-mentioned patent has the life who has prolonged driftage brake disc, has improved fan operating stability's advantage simultaneously, but it also has the defect, if: the rotor bearing position which is seriously damaged cannot be accurately repaired, the application range is small, the structure is single, and the repairing quality is poor.

Disclosure of Invention

The invention aims to provide a device and a process for repairing a bearing position of a rotor of a wind driven generator, which aim to solve the problems in the background art.

In order to achieve the purpose, the invention provides the following technical scheme:

a wind driven generator rotor bearing position repairing device and a repairing process comprise:

the mounting plate is fixedly arranged in the motor tower and is fixedly arranged above the rotor bearing shaft;

a grinding mechanism for grinding the rotor bearing shaft;

the first moving mechanism is used for driving the polishing mechanism to move in the horizontal direction;

the second moving mechanism is used for driving the polishing mechanism to move in the vertical direction;

the power mechanism is used for driving the grinding mechanism to run;

and the supporting mechanism is used for guaranteeing the stability of the polishing mechanism during polishing.

Preferably, grinding machanism includes the dwang, the confession has been seted up on the mounting panel the waist type groove that the dwang level slided, the tip of dwang runs through mounting panel and fixedly connected with sanding block, the outside of dwang is rotated and is connected with the rectangular block, the top and the equal fixedly connected with bearing frame in bottom of rectangular block, the dwang with the bearing frame is rotated and is connected.

Preferably, first moving mechanism includes fixed connection and is in the backup pad at mounting panel top, threaded connection has first threaded rod in the backup pad, the first carousel of one end fixedly connected with of first threaded rod, the other end of first threaded rod rotates and is connected with first L type movable plate, first L type movable plate with mounting panel sliding connection.

Preferably, the second moving mechanism comprises a connecting block fixedly connected with the first L-shaped moving plate, the top end of the connecting block is rotatably connected with a second threaded rod, the top of the second threaded rod is fixedly connected with a second turntable, the second threaded rod is connected with a second L-shaped moving plate in a threaded manner, the second L-shaped moving plate is vertically and slidably connected with the connecting block, and the second L-shaped moving plate is fixedly connected with the rectangular block.

Preferably, power unit include with rectangular block fixedly connected with connecting plate, the one end fixedly connected with casing of connecting plate, the installation is fixed with servo motor in the casing inner chamber, servo motor's motor shaft tip with the equal fixedly connected with belt pulley in top of dwang, two the belt pulley passes through the V belt transmission and connects, the rectangular block with two firm poles of fixedly connected with between the casing.

Preferably, the supporting mechanism comprises a transverse plate fixedly connected to one side of the shell, a third threaded rod is connected to the transverse plate in a threaded mode, a third rotary table is fixedly connected to the end portion of the third threaded rod, and the other end of the third threaded rod rotates to be connected with a contact disc.

Preferably, the belt pulley department is provided with the protecting crust, fixedly connected with supporting rod on the second L type movable plate, the vertical section of supporting rod with first L type movable plate sliding connection, the horizontal segment of first L type movable plate with all be provided with protruding type guide block on the connecting block, the mounting panel with the confession is all seted up to the vertical section of second L type movable plate the guide way that protruding type guide block slided.

The invention also provides a repair process of the rotor bearing position of the wind driven generator, which comprises the following steps:

cleaning impurities: polishing the repair position by using a polishing block, and polishing oil stains, dirt, rust and sticky sand on the surface of the repair position;

step two, groove forming: beveling the repair position by using a tool to expose unoxidized metal in the repair position;

step three, repair welding repair: and (5) performing welding repair on the cleaned repair position by using a cold welding machine, and checking the repair position after the repair is completed.

Preferably, after the groove is formed in the second step, if an extension crack is found, a drill is used for drilling holes at two ends of the crack to block the crack, then the groove is shoveled, and the blocked holes are included in the repair welding repair range as two ends of the groove.

Preferably, the groove comprises an X-shaped groove, a V-shaped groove and a U-shaped groove.

Compared with the prior art, the invention has the beneficial effects that:

(1) when the repairing device for the rotor bearing position of the wind driven generator is used, the polishing mechanism can move transversely and longitudinally through the arrangement of the first moving mechanism and the second moving mechanism, and can be used for accurately polishing and repairing the repairing position.

(2) The repair welding temperature of the repair process is low, the base body does not generate heat, the metallographic structure near the repair position is not changed, the stress concentration phenomenon is avoided, the repair combination is firm and compact, the possibility of falling is avoided, the repair position does not generate thermal deformation, cracks are avoided, hardening and hard spot phenomena are avoided, the material used for repair is a material with high hardness and excellent wear resistance and corrosion resistance, the comprehensive performance of the material is superior to that of the repair body, and the effects of excellent repair effect and stable structure and no falling are achieved.

Drawings

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

FIG. 2 is a partial sectional view of the present invention;

FIG. 3 is an enlarged view of a second L-shaped moving plate according to the present invention;

FIG. 4 is an enlarged view of the structure at A of the present invention;

FIG. 5 is a top view of the mounting plate of the present invention;

FIG. 6 is a structural cross-sectional view of the male guide block of the present invention;

FIG. 7 is a process diagram of the present invention.

In the figure: 1. mounting a plate; 2. a rotor bearing shaft; 3. a polishing mechanism; 4. a first moving mechanism; 5. a second moving mechanism; 6. a power mechanism; 7. a support mechanism; 8. rotating the rod; 9. grinding blocks; 10. a rectangular block; 11. a bearing seat; 12. a support plate; 13. a first threaded rod; 14. a first turntable; 15. a first L-shaped moving plate; 16. connecting blocks; 17. a second threaded rod; 18. a second turntable; 19. a second L-shaped moving plate; 20. a connecting plate; 21. a housing; 22. a servo motor; 23. a belt pulley; 24. a V-belt; 25. a stabilizing rod; 26. a transverse plate; 27. a third threaded rod; 28. a third turntable; 29. a contact pad; 30. a protective shell; 31. a support rod; 32. a convex guide block; 33. a guide groove; 34. a waist-shaped groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 7, the present invention provides a wind turbine rotor bearing position repairing apparatus and a repairing process, wherein the technical scheme is as follows: the method comprises the following steps:

the mounting plate 1 is fixedly arranged in the motor tower, and the mounting plate 1 is fixedly arranged above the rotor bearing shaft 2;

a grinding mechanism 3 for grinding the rotor bearing shaft 2;

the first moving mechanism 4 is used for driving the polishing mechanism 3 to move in the horizontal direction;

the second moving mechanism 5 is used for driving the polishing mechanism 3 to move in the vertical direction;

the power mechanism 6 is used for driving the grinding mechanism 3 to run;

a supporting mechanism 7 for ensuring stability can when grinding mechanism 3 polishes.

In this embodiment, preferably, the polishing mechanism 3 includes a rotating rod 8, a waist-shaped groove 34 for the rotating rod 8 to horizontally slide is formed in the mounting plate 1, an end portion of the rotating rod 8 penetrates through the mounting plate 1 and is fixedly connected with the polishing block 9, a rectangular block 10 is rotatably connected to the outside of the rotating rod 8, bearing seats 11 are fixedly connected to the top and the bottom of the rectangular block 10, and the rotating rod 8 is rotatably connected with the bearing seats 11; used for repairing and polishing the repairing position.

In this embodiment, preferably, the first moving mechanism 4 includes a supporting plate 12 fixedly connected to the top of the mounting plate 1, a first threaded rod 13 is connected to the supporting plate 12 in a threaded manner, one end of the first threaded rod 13 is fixedly connected to a first rotating disc 14, the other end of the first threaded rod 13 is rotatably connected to a first L-shaped moving plate 15, and the first L-shaped moving plate 15 is slidably connected to the mounting plate 1; for driving the grinding mechanism 3 to move in the horizontal direction.

In this embodiment, preferably, the second moving mechanism 5 includes a connecting block 16 fixedly connected to the first L-shaped moving plate 15, a second threaded rod 17 is rotatably connected to the top end of the connecting block 16, a second rotating disc 18 is fixedly connected to the top of the second threaded rod 17, a second L-shaped moving plate 19 is threadedly connected to the second threaded rod 17, the second L-shaped moving plate 19 is vertically and slidably connected to the connecting block 16, and the second L-shaped moving plate 19 is fixedly connected to the rectangular block 10; for driving the grinding mechanism 3 to move in the vertical direction.

In this embodiment, preferably, the power mechanism 6 includes a connecting plate 20 fixedly connected to the rectangular block 10, one end of the connecting plate 20 is fixedly connected to a housing 21, a servo motor 22 is fixedly installed in an inner cavity of the housing 21, a belt pulley 23 is fixedly connected to both an end of a motor shaft of the servo motor 22 and a top of the rotating rod 8, the two belt pulleys 23 are in transmission connection through a triangular belt 24, and two stabilizing rods 25 are fixedly connected between the rectangular block 10 and the housing 21; for driving the turning rod 8 and the sanding block 9 to turn.

In this embodiment, preferably, the supporting mechanism 7 includes a transverse plate 26 fixedly connected to one side of the housing 21, the transverse plate 26 is connected to a third threaded rod 27 through a thread, an end of the third threaded rod 27 is fixedly connected to a third rotating disc 28, and the other end of the third threaded rod 27 is rotatably connected to a contact disc 29; the polishing mechanism is used for supporting the top of the mounting plate 1, so that the polishing mechanism 3 is more stable in operation, cannot shake, and improves polishing repair precision.

In this embodiment, preferably, the protective shell 30 is arranged at the belt pulley 23, the second L-shaped moving plate 19 is fixedly connected with the supporting rod 31, a vertical section of the supporting rod 31 is slidably connected with the first L-shaped moving plate 15, a horizontal section of the first L-shaped moving plate 15 and the connecting block 16 are both provided with a convex guide block 32, and vertical sections of the mounting plate 1 and the second L-shaped moving plate 19 are both provided with a guide groove 33 for the convex guide block 32 to slide; the belt pulley 23 and the triangular belt 24 can be shielded by the arrangement of the protective shell 30, so that accidents caused by contact of operators can be avoided, and the stability of the invention during transverse and longitudinal movement can be improved by the arrangement of the convex guide block 32 and the guide groove 33.

cleaning impurities: polishing the repair position by using a polishing block 9, and polishing oil stains, dirt, rust and sticky sand on the surface of the repair position;

In this embodiment, preferably, after the groove is formed in the second step, if an extended crack is found, a drill is used to drill holes at two ends of the crack to block the crack, and then the groove is shoveled, and the blocked holes are included in the repair welding repair range as two ends of the groove.

In this embodiment, preferably, the groove includes an X-shaped groove, a V-shaped groove, and a U-shaped groove.

The working principle and the using process of the invention are as follows:

when the wind driven generator rotor bearing position repairing device and the repairing process are used, the first rotating disc 14 is manually rotated to drive the first threaded rod 13 to rotate, thereby driving the second moving mechanism 5, the power mechanism 6, the grinding mechanism 3 and the supporting mechanism 7 to move transversely, when the transverse movement makes the grinding block 9 positioned above the repairing position, then the second rotating disc 18 is manually rotated to drive the second threaded rod 17 to rotate, thereby driving the polishing mechanism 3, the power mechanism 6 and the supporting mechanism 7 to move longitudinally, enabling the polishing block 9 to be attached to the repair position, then manually rotating the third rotating disc 28 to drive the third threaded rod 27 to rotate, so as to drive the contact disc 29 to move towards the top of the mounting plate 1, and finally enabling the contact disc 29 to be tightly attached to the mounting plate 1, so that the stability of the polishing machine is improved, and at the moment, starting the servo motor 22 to drive the belt pulley 23 to rotate, and further driving the rotating rod 8 and the polishing block 9 to rotate to polish and repair the repair position;

when the wind driven generator rotor bearing position repairing device is used, the polishing mechanism 3 can move transversely and longitudinally through the arrangement of the first moving mechanism 4 and the second moving mechanism 5, and can carry out accurate polishing repairing on the repairing position;

the repair device and the repair process for the rotor bearing position of the wind driven generator have the advantages that the repair welding temperature is low, the matrix does not generate heat, the metallographic structure near the repair position is not changed, the phenomenon of stress concentration is avoided, the repair combination is firm and compact, the possibility of falling is avoided, the repair position does not generate thermal deformation, cracks are avoided, hardening and hard spot are avoided, the material used for repair is a material with high hardness and excellent wear resistance and corrosion resistance, the comprehensive performance of the material is superior to that of the repair body, and the effects of excellent repair effect and stable structure and no falling are achieved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A wind driven generator rotor bearing position repairing device is characterized by comprising:

the mounting plate (1) is fixedly mounted in the motor tower, and the mounting plate (1) is fixedly mounted above the rotor bearing shaft (2);

a grinding mechanism (3) for grinding the rotor bearing shaft (2);

the first moving mechanism (4) is used for driving the grinding mechanism (3) to move in the horizontal direction;

the second moving mechanism (5) is used for driving the grinding mechanism (3) to move in the vertical direction;

the power mechanism (6) is used for driving the grinding mechanism (3) to run;

and the supporting mechanism (7) is used for guaranteeing the stability of the grinding mechanism (3) during grinding.

2. The wind driven generator rotor bearing position repairing device according to claim 1, wherein: grinding machanism (3) are including dwang (8), the confession has been seted up on mounting panel (1) waist type groove (34) that dwang (8) level slided, the tip of dwang (8) runs through mounting panel (1) and fixedly connected with sanding block (9), the outside of dwang (8) is rotated and is connected with rectangular block (10), the top and the equal fixedly connected with bearing frame (11) in bottom of rectangular block (10), dwang (8) with bearing frame (11) are rotated and are connected.

3. The wind driven generator rotor bearing position repairing device according to claim 1, wherein: first moving mechanism (4) are including fixed connection in backup pad (12) at mounting panel (1) top, threaded connection has first threaded rod (13) on backup pad (12), the first carousel of one end fixedly connected with (14) of first threaded rod (13), the other end of first threaded rod (13) rotates and is connected with first L type movable plate (15), first L type movable plate (15) with mounting panel (1) sliding connection.

4. The wind driven generator rotor bearing position repairing device according to claim 3, wherein: the second moving mechanism (5) comprises a connecting block (16) fixedly connected with the first L-shaped moving plate (15), a second threaded rod (17) is connected to the top end of the connecting block (16) in a rotating mode, a second rotary table (18) is fixedly connected with the top of the second threaded rod (17), a second L-shaped moving plate (19) is connected to the second threaded rod (17) in a threaded mode, the second L-shaped moving plate (19) is connected with the connecting block (16) in a vertical sliding mode, and the second L-shaped moving plate (19) is fixedly connected with the rectangular block (10).

5. The wind driven generator rotor bearing position repairing device according to claim 2, wherein: power unit (6) include with rectangular block (10) fixedly connected with connecting plate (20), the one end fixedly connected with casing (21) of connecting plate (20), the installation is fixed with servo motor (22) in casing (21) inner chamber, the motor shaft tip of servo motor (22) with the equal fixedly connected with belt pulley (23) in top of dwang (8), two belt pulley (23) are connected through V belt (24) transmission, rectangular block (10) with two firm poles (25) of fixedly connected with between casing (21).

6. The wind driven generator rotor bearing position repairing device according to claim 5, wherein: the supporting mechanism (7) comprises a transverse plate (26) fixedly connected to one side of the shell (21), a third threaded rod (27) is connected to the transverse plate (26) in a threaded mode, a third rotary disc (28) is fixedly connected to the end portion of the third threaded rod (27), and the other end of the third threaded rod (27) rotates to be connected with a contact disc (29).

7. The wind driven generator rotor bearing position repairing device according to claim 5, wherein: belt pulley (23) department is provided with protecting crust (30), fixedly connected with supporting rod (31) on second L type movable plate (19), the vertical section of supporting rod (31) with first L type movable plate (15) sliding connection, the horizontal segment of first L type movable plate (15) with all be provided with protruding type guide block (32) on connecting block (16), mounting panel (1) with the confession has all been seted up to the vertical section of second L type movable plate (19) guide way (33) that protruding type guide block (32) slided.

8. A repair process for a rotor bearing position of a wind driven generator is characterized by comprising the following steps:

cleaning impurities: polishing the repair position by using a polishing block (9), and polishing oil stains, dirt, rust and sticky sand on the surface of the repair position;

9. The process for repairing a bearing location of a rotor of a wind turbine according to claim 8, wherein: and after the groove is formed in the second step, if the extending crack is found, drilling holes at two ends of the crack by using a drill to block the crack, and then shoveling the groove, wherein the blocked holes are used as two ends of the groove and included in the repair welding repair range.

10. The process for repairing a bearing location of a rotor of a wind turbine according to claim 8, wherein: the groove comprises an X-shaped groove, a V-shaped groove and a U-shaped groove.