CN213857273U

CN213857273U - Yaw brake disc on-site milling device of wind generating set

Info

Publication number: CN213857273U
Application number: CN202022963832.7U
Authority: CN
Inventors: 张建兵
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-12-12
Filing date: 2020-12-12
Publication date: 2021-08-03
Anticipated expiration: 2030-12-12

Abstract

The utility model provides a wind generating set's driftage brake disc scene milling device, including the installing support, the installing support is used for realizing dismantling with wind generating set's cabin and is connected, install the rotation driving motor on the installing support, the output shaft of rotation driving motor is connected with the power input shaft drive of transmission gear case, the power output shaft facial make-up of transmission gear case is equipped with and mills the subassembly. The utility model discloses compact structure is simple, can be by nimble installing in wind generating set's cabin, realize milling the restoration to the scene of driftage brake disc, the potential safety hazard is little, mill efficient, the transportation of being convenient for is dismantled the installation, reduces wind generating set's cost of maintenance, shortens maintenance cycle to very big degree ground.

Description

Yaw brake disc on-site milling device of wind generating set

Technical Field

The utility model belongs to the technical field of wind power generation, concretely relates to wind generating set's driftage brake disc on-the-spot milling equipment.

Background

The service life of the wind generating set after leaving the factory is 20 years, and as time goes on, a large number of yaw brake discs of old fans are seriously worn, or the friction surfaces of brake pads of the yaw clamp cannot be patrolled until the friction surfaces are changed for the period, so that direct friction between iron and iron occurs, the whole brake discs are provided with different pits, and the inestimable loss is caused to the operation cost of the wind generating set and the noise pollution of the surrounding environment. And some fan manufacturers leave the market or most wind generating sets stop production, and the yawing brake disc is not provided with spare parts and can be replaced, so that the repair requirement on the brake disc is more urgent.

The existing milling equipment such as a milling machine is large in size and inconvenient to transport, the existing repair method for the yaw brake disc of the wind generating set is to disassemble the yaw brake disc from the unit, then hoist and convey the yaw brake disc to a milling or polishing factory for repair, the yaw brake disc is installed again after the repair is finished, the hoisting, transporting and manpower costs are extremely high, and the repair period is long; the prior art also discloses a field-use device capable of polishing and repairing a yaw brake disc to be repaired, but the four shots of sparks during polishing have great fire hazard, a great deal of protection work needs to be carried out in an engine room, and particularly, a great number of cables in the engine room need to be fully protected. The utility model is provided based on the current situation in the industry.

SUMMERY OF THE UTILITY MODEL

Therefore, the to-be-solved technical problem of the utility model is to provide a wind generating set's driftage brake disc site milling device, compact structure is simple, can be by nimble installing in wind generating set's cabin, realize milling the restoration to the scene of driftage brake disc, the potential safety hazard is little, mill efficient, the transportation of being convenient for is dismantled the installation, reduces wind generating set's cost of maintenance, shortens maintenance cycle to a great extent.

In order to solve the problem, the utility model provides a wind generating set's driftage brake disc scene milling device, which comprises an installation support, the installing support is used for realizing dismantling with wind generating set's cabin and is connected, install the rotation driving motor on the installing support, the output shaft of rotation driving motor is connected with the power input shaft drive of transmission gear box, the power output shaft facial make-up of transmission gear box is equipped with the milling subassembly.

Preferably, the power input shaft is provided with a first bevel gear, the power output shaft is provided with a second bevel gear, and the first bevel gear and the second bevel gear are meshed orthogonally.

Preferably, the transmission gear box has a flange plate disposed corresponding to the power input shaft, and a casing of the rotary drive motor is connected to the flange plate; and/or, the subassembly that mills includes the milling cutter dish and be the array connect in a plurality of milling cutters on the milling cutter dish on the axial direction of milling cutter dish, with the installation side of milling cutter is relative one side of transmission gear case with the biggest interval between the milling cutter is h, and h < 85 mm.

Preferably, a milling cutter position adjusting assembly is connected to a housing of the rotary driving motor, and the milling cutter position adjusting assembly can drive the rotary driving motor to move linearly and reciprocally in a direction parallel to the power input shaft.

Preferably, the milling cutter position adjusting assembly includes a first sliding plate connected to the rotary driving motor and a first screw driving member slidably connected to the first sliding plate, and when the first screw driving member is driven to rotate, the first sliding plate drives the rotary driving motor to move.

Preferably, the first sliding plate is connected with a feed amount adjusting assembly, and the feed amount adjusting assembly can drive the milling cutter position adjusting assembly to move linearly and reciprocally in a direction parallel to the power output shaft.

Preferably, the feed amount adjusting assembly includes a second sliding plate connected to the first sliding plate and a second screw driving member slidably connected to the second sliding plate, and when the second screw driving member is driven to rotate, the second sliding plate drives the milling cutter position adjusting assembly to move.

Preferably, the first screw rod driving piece and the second screw rod driving piece can form fixed connection with the mounting bracket in a manner of rotating around the axis line of the first screw rod driving piece and the second screw rod driving piece.

Preferably, the height direction of the mounting bracket can be adjusted; and/or a milling chip bin is constructed on the mounting support, a transparent protective cover is arranged on one side, where the milling component is mounted, of the transmission gear box, the transparent protective cover surrounds the periphery of the milling component, and the milling chip bin is communicated with the transparent protective cover through a pneumatic conveying pipeline.

The utility model provides a pair of wind generating set's driftage brake disc on-site milling device when the operation need be restoreed to the driftage brake disc, on-site milling device is transported to the scene and is passed through by light the installing support with the cabin forms the connection location, controls afterwards rotatory driving motor operation and then pass through the drive gear box drive it realizes right to mill the subassembly the restoration operation of milling of driftage brake disc, and will after milling the restoration operation and finishing the installing support with the cabin is demolishd and is connected and then remove on-site milling device and the processing of changing the place can, on-site milling device compact structure is simple, can be nimble install in wind generating set's cabin, realizes the restoration of milling on the scene to the driftage brake disc, and the potential safety hazard is little, mill efficiently, be convenient for the transportation dismantlement installation, greatly reduces wind generating set's cost of maintenance, The maintenance period is shortened.

Drawings

Fig. 1 is a schematic side view of a yaw brake disc on-site milling device of a wind generating set according to an embodiment of the present invention;

fig. 2 is a bottom view of fig. 1.

The reference numerals are represented as:

2. a rotary drive motor; 3. a transmission gear box; 31. a first helical gear; 32. a second helical gear; 33. a flange plate; 4. a milling assembly; 41. a milling cutter disc; 42. milling cutters; 5. a milling cutter position adjustment assembly; 51. a first slide plate; 52. a first lead screw driving member; 6. a feed amount adjusting assembly; 61. a second slide plate; 62. a second screw driving member; 7. a seal ring; 8. a coupling sleeve; 9. and supporting the bearing.

Detailed Description

Referring to fig. 1 to 2 in combination, according to an embodiment of the present invention, there is provided a yaw brake disc field milling device for a wind turbine generator system, including a mounting bracket (not shown in the drawings), the mounting bracket is used for being detachably connected to a nacelle of the wind turbine generator system, a rotary driving motor 2 (for example, an asynchronous three-phase motor may be used) is mounted on the mounting bracket, an output shaft of the rotary driving motor 2 is in driving connection with a power input shaft of a transmission gear box 3, a milling assembly 4 is mounted on a power output shaft of the transmission gear box 3, specifically, when the yaw brake disc needs to be repaired, the field milling device is easily transported to the field and is connected and positioned with the nacelle through the mounting bracket, and then the rotary driving motor 2 is controlled to operate to drive the milling assembly 4 through the transmission gear box 3 to realize the milling repair operation of the yaw brake disc, and after the milling repairing operation is finished, the mounting bracket and the engine room are detached and connected, and then the field milling device is removed and is transferred for processing. The on-site milling device in the technical scheme has a compact and simple structure, can be flexibly installed in a cabin of the wind generating set, realizes on-site milling and repairing of the yaw brake disc, has small potential safety hazard (no grinding and cremation), high milling efficiency and convenient transportation, disassembly and installation, greatly reduces the maintenance cost of the wind generating set, and shortens the maintenance period.

In order to further make the milling device smaller in size and further improve the convenience of field operation, it is preferable that the power input shaft has a first bevel gear 31, the power output shaft has a second bevel gear 32, and the first bevel gear 31 and the second bevel gear 32 are orthogonally engaged, that is, the transmission system in the transmission gear box 3 only includes the first bevel gear 31 and the second bevel gear 32, so as to ensure that the structure in the transmission gear box 3 is sufficiently simplified, and the first bevel gear 31 and the second bevel gear 32 which are orthogonally engaged can be used to further reduce the size of the transmission gear box 3. It can be understood that the two axial ends of the power input shaft and the power output shaft are respectively supported on the support bearings 9, and similarly, the output shaft of the rotation driving motor 2 is also supported on the support bearings 9, so as to ensure smooth rotation of the rotation shaft. Further, the output shaft of the rotary driving motor 2 is connected with the power input shaft through a coupling sleeve 8, and it is understood that the coupling sleeve 8 may be connected with a spline or a flat key at a section corresponding to the power input shaft or the output shaft of the rotary driving motor 2. Further, the box body of the transmission gear box 3, the power input shaft and the power output shaft are provided with sealing rings 7 at shaft holes matched with each other, so that impurities such as external dust are prevented from entering the box.

In some embodiments, the transmission gear box 3 has a flange 33 corresponding to the power input shaft (in this case, the seal ring 7 corresponding to the power input shaft may be disposed on the flange 33), and the housing of the rotary drive motor 2 is connected to the flange 33, so that the rotary drive motor 2, the transmission gear box 3 and the milling assembly 4 form an organic whole, which facilitates uniform adjustment of their positions or states.

As a milling assembly 4's a specific embodiment, milling assembly 4 include milling cutter dish 41 and be the array connect in a plurality of milling cutter 42 on the milling cutter dish 41, wherein, milling cutter dish 41's material can for example make for 42CrMo still concrete great structural strength (high strength and high tenacity) when milling cutter dish 41's thickness is less, and milling cutter 42 then adopts APKT1604PDFR-MA in a concrete example, specifically can adopt 6 milling cutter 42 array equipartitions, and then on milling cutter dish 41's axial direction, with milling cutter 42's installation side is relative one side transmission gear box 3 with maximum interval between milling cutter 42 is h, and h < 85mm, and this makes yaw brake disc field milling device's size is littleer, transportation, dismouting are more convenient.

In some embodiments, a milling cutter position adjusting assembly 5 is connected to the housing of the rotary driving motor 2, and the milling cutter position adjusting assembly 5 can drive the rotary driving motor 2 to move linearly and reciprocally in a direction parallel to the power input shaft, so that the relative position between the milling assembly 4 and the yaw brake disc can be adjusted, and the milling process is more flexible. Specifically, the milling cutter position adjusting assembly 5 includes a first sliding plate 51 connected to the rotary driving motor 2 and a first screw rod driving member 52 slidably connected to the first sliding plate 51, when the first screw rod driving member 52 is driven to rotate, the first sliding plate 51 drives the rotary driving motor 2 to move, but it can be understood that the axial movement freedom of the first screw rod driving member 52 is limited to have only a rotation freedom around its own axial direction, so that when it is rotated, a screw nut on the first sliding plate 51 matching with a screw rod in the first screw rod driving member 52 generates its axial reciprocating motion, and the first sliding plate 51 finally realizes a linear reciprocating motion.

Further, the first sliding plate 51 is connected with a feeding amount adjusting assembly 6, and the feeding amount adjusting assembly 6 can drive the milling cutter position adjusting assembly 5 to move linearly and reciprocally in a direction parallel to the power output shaft, so that the freedom of movement of the rotary driving motor 2, the transmission gear box 3 and the milling assembly 4 can be improved, the position adjustment of the milling assembly 4 relative to the yaw brake disc is more flexible, and the milling precision can be improved. Specifically, the feed amount adjusting assembly 6 includes a second sliding plate 61 connected to the first sliding plate 51 and a second screw rod driving member 62 slidably connected to the second sliding plate 61, when the second screw rod driving member 62 is driven to rotate, the second sliding plate 61 drives the milling cutter position adjusting assembly 5 to move, and a driving principle between the second screw rod driving member 62 and the second sliding plate 61 is the same as a driving principle between the first screw rod driving member 52 and the first sliding plate 51, which is not described herein again.

As a more preferable embodiment, the first screw rod driver 52 and the second screw rod driver 62 are fixedly connected to the mounting bracket in a manner of being rotatable around the axial line thereof, that is, the first screw rod driver 52 and the second screw rod driver 62 are both in supporting connection with the mounting bracket, so that both of them only have a rotational degree of freedom, and in order to ensure a simplified structure and a minimized volume and weight of the yaw brake disc on-site milling device, the driving components of the first screw rod driver 52 and the second screw rod driver 62 preferably use a rotating wheel rather than a power device such as a rotational driving motor, and when the position or the feeding amount needs to be adjusted, an operator manually applies force to rotate the rotating wheel.

More preferably, the height direction of the mounting bracket can be adjusted, for example, the upright of the mounting bracket is designed to be a telescopic structure, so as to realize flexible adjustment in the height direction.

Further, a milling chip bin (not shown in the figure) is configured on the mounting bracket and is used for collecting and containing milling chips generated in the milling process of the milling assembly 4, at this time, a pneumatic conveying pipeline (not shown in the figure) is further installed on the mounting bracket, a first end of the pneumatic conveying pipeline is arranged near a position where the milling assembly 4 contacts with the yaw brake disc, a second end of the pneumatic conveying pipeline is connected with an external pressure air flow source, a third end of the pneumatic conveying pipeline is arranged in the milling chip bin, after the second end is in through connection with the pressure air flow source, the airflow conveying pipeline conveys the milling chips at the first end into the milling chip bin at the third end by adopting a venturi effect, and further secondary hidden dangers (such as adverse effects on friction plates, kinematic joints, cables and the like) caused by the scattering of the milling chips are avoided, furthermore, a transparent protective cover is arranged on one side, where the milling assembly 4 is installed, of the transmission gear box 3, the transparent protective cover is arranged around the circumference of the milling assembly 4, so that the milling assembly 4 and the working surface of the yaw brake disc are located in a relatively sealed space, the milling chip bin and the transparent protective cover are communicated through a pipeline, namely the pneumatic conveying pipeline, so that conveying communication is achieved, and the transparent protective cover can be used for enabling an operator to confirm the relative position of the milling assembly 4 and the yaw brake disc while the working surface is relatively sealed. The arrangement of the milling scrap bin can facilitate the repair process of the brake disc to a greater extent, so that the brake disc can be put into use more quickly after the repair is completed.

It is readily understood by a person skilled in the art that the advantageous ways described above can be freely combined, superimposed without conflict.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention. The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a wind generating set's driftage brake disc scene milling device, its characterized in that, includes the installing support, the installing support is used for realizing dismantling with wind generating set's cabin and is connected, install rotation driving motor (2) on the installing support, the output shaft of rotation driving motor (2) is connected with the power input shaft drive of transmission gear box (3), the power output shaft facial make-up of transmission gear box (3) is equipped with mills subassembly (4).

2. A yaw brake disc site milling apparatus according to claim 1, characterized in that the power input shaft is provided with a first bevel gear (31), the power output shaft is provided with a second bevel gear (32), and the first bevel gear (31) and the second bevel gear (32) are orthogonally meshed.

3. A yaw brake disc site milling device according to claim 1, characterized in that the transmission gear box (3) has a flange (33) arranged corresponding to the power input shaft, the housing of the rotary drive motor (2) being connected with the flange (33); and/or, mill subassembly (4) including milling cutter dish (41) and be the array connect in a plurality of milling cutter (42) on milling cutter dish (41) on the axial direction of milling cutter dish (41), with the installation side of milling cutter (42) is relative one side of transmission gear box (3) with the biggest interval between milling cutter (42) is h, and h < 85 mm.

4. A yaw brake disc field milling device according to claim 3, characterized in that a mill position adjustment assembly (5) is connected to the housing of the rotary drive motor (2), the mill position adjustment assembly (5) being capable of moving the rotary drive motor (2) in a reciprocating linear motion in a direction parallel to the power input shaft.

5. A yaw brake disc site milling device according to claim 4, characterized in that the mill position adjustment assembly (5) comprises a first slide plate (51) connected with the rotary drive motor (2) and a first screw drive (52) in sliding connection with the first slide plate (51), the first slide plate (51) moving the rotary drive motor (2) when the first screw drive (52) is driven in rotation.

6. A yaw brake disc site milling device according to claim 5, characterized in that a feed amount adjusting assembly (6) is connected to the first sliding plate (51), and the feed amount adjusting assembly (6) can drive the milling cutter position adjusting assembly (5) to move in a reciprocating linear motion in a direction parallel to the power output shaft.

7. A yaw brake disc site milling apparatus according to claim 6, characterized in that the feed adjustment assembly (6) comprises a second slide plate (61) connected with the first slide plate (51) and a second screw drive (62) slidably connected with the second slide plate (61), the second slide plate (61) moving the mill position adjustment assembly (5) when the second screw drive (62) is driven in rotation.

8. A yaw brake disc site milling apparatus according to claim 7, characterized in that the first screw drive (52) and the second screw drive (62) are rotatably connected about their axes to the mounting bracket.

9. The yaw brake disc site milling apparatus of claim 1, wherein a height direction of the mounting bracket may be adjusted; and/or a milling chip bin is constructed on the mounting support, a transparent protective cover is arranged on one side, where the transmission gear box (3) is mounted, of the milling component (4), the transparent protective cover surrounds the circumferential direction of the milling component (4), and the milling chip bin is communicated with the transparent protective cover through a pneumatic conveying pipeline.