CN217841913U - Driftage brake disc is at labour maintenance device - Google Patents

Abstract

The utility model provides a driftage brake disc is at labour maintenance device relates to wind generating set part and restores technical field, for solving the high problem design of the local deformation repair cost of current wind generating set driftage brake disc. The in-service maintenance device for the yaw brake disc comprises a fixed platform, a movable platform, a power assembly, a plane milling cutter disc and a locking plate, wherein the fixed platform is configured to be fixedly connected with a fixed part of a wind generating set, the movable platform is movably arranged on the fixed platform, and the power assembly is arranged on the movable platform and moves synchronously with the movable platform; the plane milling cutter disc is arranged at the power output end of the power assembly, and the power assembly is configured to drive the plane milling cutter disc to rotate; the first side of lockplate is connected with fixed platform, and the second side of lockplate can dismantle fixed connection with the moving platform. The utility model discloses can reduce the local deformation repair cost of driftage brake disc.

Description

Driftage brake disc is at labour maintenance device

Technical Field

The utility model relates to a wind generating set part restoration technical field particularly, relates to a driftage brake disc is at labour maintenance device.

Background

In the service process of the yaw brake disc of the wind generating set, various damages can occur, and the yaw brake disc can be affected by other parts to cause local serious deformation of the yaw brake disc, so that the wind generating set is shut down and cannot run, and only a hoisting and replacing mode can be adopted for maintenance to recover the normal running of the wind generating set. However, the yaw brake disc spare parts have long manufacturing period, high hoisting cost and long construction period, and especially the offshore wind generating set needs to go to a hoisting ship, so that the cost is higher, the shutdown time of the wind generating set is further long, and the maintenance cost and the economic loss are very high.

Therefore, at present, an in-service maintenance device capable of solving the local serious deformation of the yawing brake disc of the wind generating set is urgently needed, so that personnel can climb a tower for construction operation, the structural size and the function of the yawing brake disc are recovered, the normal operation of the wind generating set is recovered, the maintenance cost is reduced, the economic loss is reduced, and the operating benefit of a wind power plant is improved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a driftage brake disc is at labour maintenance device to solve the local technical problem who warp the repair cost height of current wind generating set driftage brake disc.

The utility model provides an in-service maintenance device of driftage brake disc, including fixed platform, moving platform, power component, plane milling cutter dish and lockplate, wherein, fixed platform is configured as fixed connection with wind generating set's fixed part, the moving platform movably installs in fixed platform, power component install in the moving platform and along with the moving platform synchronous motion; the plane milling cutter disc is mounted at the power output end of the power assembly, and the power assembly is configured to drive the plane milling cutter disc to rotate; the first side of the locking plate is connected with the fixed platform, and the second side of the locking plate is detachably and fixedly connected with the mobile platform.

Furthermore, the fixed platform is provided with a plurality of first screw holes which are arranged at intervals along the moving direction of the moving platform, the moving platform is provided with a plurality of second screw holes which are arranged at intervals along the moving direction of the moving platform; first bar hole has been seted up to the first side of lockplate, second bar hole has been seted up to the second side of lockplate, first bar hole with second bar hole all follows moving platform's moving direction extends, just first bar hole with first screw is relative, second bar hole with the second screw is relative.

Further, the fixed platform comprises a fixed plate and a movable mounting plate which are vertically connected, the fixed plate is configured to be fixedly connected with a fixed part of the wind generating set, the movable platform is movably mounted on the movable mounting plate, and the first screw hole is formed in the movable mounting plate; the fixed plate is provided with a milling notch used for exposing the plane milling cutter disc.

Furthermore, the fixing plate is provided with a plurality of strip-shaped fixing holes, the fixing holes are distributed around the milling cuts in a dispersed manner, and the length directions of the fixing holes are along the radial directions of the milling cuts.

Furthermore, a support frame is fixedly connected between the fixed plate and the movable mounting plate, and the support frame and the power assembly are respectively arranged on two sides of the movable mounting plate, which are opposite to each other.

Further, the fixed platform is provided with a rotatable lead screw, the moving platform is fixedly provided with a nut, the nut is spirally sleeved with the lead screw, and the moving platform is connected with the fixed platform in a sliding mode.

Further, the screw rod is fixedly connected with a hand wheel.

Further, the fixed cover of lead screw is equipped with the calibrated scale, fixed platform is fixed to be provided with the pointer, the pointer with the calibrated scale cooperation is used.

Further, power component includes driving motor and transmission shaft, driving motor's casing with moving platform fixed connection, driving motor's motor shaft with the first end fixed connection of transmission shaft, plane milling cutter dish fixed connection be in the second end of transmission shaft.

Further, a bearing seat is fixedly arranged on the moving platform, a supporting bearing is installed on the bearing seat, and the transmission shaft penetrates through the supporting bearing and is fixedly sleeved with an inner ring of the supporting bearing.

The utility model discloses the beneficial effect that driftage brake disc brought at labour maintenance device is:

when the yaw brake disc of the wind generating set is locally deformed to influence the normal work of the wind generating set, the yaw brake disc in-service maintenance device can be fixed on a fixed part of the wind generating set through the fixed platform; then, the power assembly and a plane milling cutter disc arranged at the power output end of the power assembly move together by utilizing the movement of the movable platform relative to the fixed platform so as to be close to a deformation area of the yaw brake disc; meanwhile, the power assembly is utilized to drive the plane milling cutter disc to rotate, and plane milling is carried out on the deformation area of the yaw brake disc until the local deformation area is completely milled and removed.

When the movable platform drives the power assembly and the plane milling cutter disc to move to a required position, the first side of the locking plate is connected with the fixed platform, the second side of the locking plate is connected with the movable platform, and the movable platform is fixed at the current position by utilizing the locking effect of the locking plate so as to ensure stable milling of the yaw brake disc. After the milling operation of the yaw brake disc is completed, the connection limitation between the second side of the locking plate and the mobile platform can be removed, so that the mobile platform drives the power assembly and the plane milling cutter disc to reset. And then, the milled part of the yaw brake disc can be filled and repaired by using corresponding materials, so that the aims of recovering the structural size and the function of the brake disc are fulfilled.

This driftage brake disc makes personnel can step on the tower construction operation in labour maintenance device, maintain the driftage brake disc in labour that appears warping, resume the structural dimension and the function of driftage brake disc, resume wind generating set normal operating, whole maintenance process need not to wait for driftage brake disc spare part, also need not to hoist and mount the driftage brake disc, the cycle is short, with low costs, effectively reduced cost of maintenance, and economic loss has been reduced, thereby the operational benefits of wind-powered electricity generation field has been improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic structural view of an in-service maintenance device for a yaw brake disc according to an embodiment of the present invention at a first viewing angle;

fig. 2 is a schematic structural view of an in-service yaw brake disc maintenance device provided by an embodiment of the present invention at a second view angle;

fig. 3 is a schematic structural view of an in-service maintenance device for a yaw brake disc according to an embodiment of the present invention at a third viewing angle;

FIG. 4 is a side view of the yaw brake disc after a local deformation;

fig. 5 is a schematic structural view of the off-course brake disc in-service maintenance device provided by the embodiment of the present invention after milling the local deformation area of the off-course brake disc in fig. 4;

FIG. 6 is a schematic illustration of a repair being made to the yaw brake disc of FIG. 5;

fig. 7 is a schematic view of a welding portion of the prefabricated arc-shaped plate in fig. 6.

Description of reference numerals:

010-yaw brake disc; 011-upper disc surface; 012-lower dish surface; 013-arc notch; 014-deformed depressed area; 020-prefabricating an arc-shaped plate; 030-a support plate; 041-upper weld; 042-lower weld;

100-a stationary platform; 200-a mobile platform; 300-a power assembly; 400-plane milling cutter disc; 500-locking plate;

110-a first screw hole; 120-a fixed plate; 121-milling a notch; 122-a fixation hole; 130-moving the mounting plate; 140-a support frame;

210-a second screw hole;

310-a drive motor; 320-a drive shaft; 330-a coupler; 340-a bearing seat;

510-a first strip aperture; 520-a second strip aperture;

610-a screw rod; 620-a slider; 630-a skid;

710-a dial; 720-pointer; 730-hand wheel.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

Fig. 1 is a schematic structural view of a in-service maintenance device for a yaw brake disc provided in this embodiment at a first view angle, fig. 2 is a schematic structural view of the in-service maintenance device for a yaw brake disc provided in this embodiment at a second view angle, and fig. 3 is a schematic structural view of the in-service maintenance device for a yaw brake disc provided in this embodiment at a third view angle. As shown in fig. 1 to 3, the present embodiment provides an in-service maintenance device for a yaw brake disc, which includes a fixed platform 100, a movable platform 200, a power assembly 300, a plane milling cutter disc 400 and a locking plate 500, specifically, the fixed platform 100 is configured to be fixedly connected with a fixed component of a wind generating set, the movable platform 200 is movably mounted on the fixed platform 100, and the power assembly 300 is mounted on the movable platform 200 and moves synchronously with the movable platform 200; the plane milling cutter disc 400 is mounted at the power output end of the power assembly 300, and the power assembly 300 is configured to drive the plane milling cutter disc 400 to rotate; a first side of the locking plate 500 is connected to the fixed platform 100 and a second side of the locking plate 500 is detachably and fixedly connected to the mobile platform 200.

FIG. 4 is a side view of the yaw brake disc after a local deformation. As shown in fig. 4, when the yaw brake disc 010 of the wind turbine generator set is locally deformed to affect the normal operation of the wind turbine generator set, the in-service maintenance device of the yaw brake disc may be fixed to a fixed component of the wind turbine generator set by the fixing platform 100; then, by the movement of the moving platform 200 relative to the fixed platform 100, the power assembly 300 and the plane milling cutter head 400 mounted at the power output end of the power assembly 300 are moved together to be close to the deformation region of the yaw brake disc 010; meanwhile, utilize power component 300 drive plane milling cutter disc 400 to rotate, carry out plane milling to the deformation region of driftage brake disc 010, until getting rid of the regional whole mills of local deformation, fig. 5 is for using the utility model discloses the structure schematic diagram after the regional mill of driftage brake disc 010 local deformation in fig. 4 is being cut to the driftage brake disc maintenance device in labour that provides of embodiment, in fig. 5, what spline curve represented is the subsides district 014 that warp of driftage brake disc promptly.

When the moving platform 200 drives the power assembly 300 and the plane milling cutter disc 400 to move to a required position, the first side of the locking plate 500 is connected with the fixed platform 100, the second side of the locking plate 500 is connected with the moving platform 200, and the moving platform 200 is fixed at the current position by using the locking effect of the locking plate 500, so that stable milling of the yaw brake disc 010 is ensured. After the milling operation of the yaw brake disc 010 is completed, the connection limitation between the second side of the locking plate 500 and the mobile platform 200 can be released, so that the mobile platform 200 drives the power assembly 300 and the plane milling cutter disc 400 to reset.

Fig. 6 is a schematic view of repairing the yaw brake disc 010 of fig. 5, and fig. 7 is a schematic view of a welding portion of the prefabricated arc-shaped plate 020 of fig. 6. Then, as shown in fig. 6 and 7, the milled part of the yaw brake disc 010 can be filled and repaired by using corresponding materials, so as to achieve the purpose of restoring the structural size and function of the brake disc.

This driftage brake disc makes personnel can step on the tower construction operation in labour maintenance device, maintain the driftage brake disc 010 in labour who warp to appearing, resume driftage brake disc 010's structural dimension and function, resume wind generating set normal operating, whole maintenance process need not to wait for driftage brake disc 010 spare part, also need not to hoist driftage brake disc 010, the cycle is short, and is with low costs, effectively reduced cost of maintenance, and economic loss has been reduced, thereby the operation benefit of wind-powered electricity generation field has been improved.

Referring to fig. 5, after the in-service maintenance device for the yaw brake disc 010 mills the local deformation region of the yaw brake disc 010, the local deformation region is milled away, and at this time, an arc-shaped notch 013 appears on the yaw brake disc 010. Afterwards, as shown in fig. 6, can set up the supporting plate 030 in the fixed below of arc breach 013 to set up prefabricated arc 020 in arc breach 013 department, utilize supporting plate 030 to support, spacing prefabricated arc 020, in order to guarantee the stability of prefabricated arc 020 in welding process, thereby be convenient for carry out welding operation to the both ends of prefabricated arc 020.

With reference to fig. 6 and fig. 7, a double-sided single-sided 45 ° groove may be formed on the prefabricated arc plate 020, and during welding, the upper portion of the prefabricated arc plate 020 is welded, then the supporting plate 030 is removed, and then the lower portion of the prefabricated arc plate 020 is welded, where the upper welding portion 041 and the lower welding portion 042 are shown in fig. 4, and a two-dot chain line in fig. 4 indicates the prefabricated arc plate 020 after welding is completed.

Referring to fig. 1, in the present embodiment, the fixing platform 100 is provided with a plurality of first screw holes 110, the plurality of first screw holes 110 are arranged at intervals along the moving direction of the moving platform 200, the moving platform 200 is provided with a plurality of second screw holes 210, and the plurality of second screw holes 210 are arranged at intervals along the moving direction of the moving platform 200; first bar hole 510 has been seted up to the first side of lockplate 500, and second bar hole 520 has been seted up to the second side of lockplate 500, and first bar hole 510 and second bar hole 520 all extend along the moving direction of moving platform 200, and first bar hole 510 is relative with first screw hole 110, and second bar hole 520 is relative with second screw hole 210.

Before the in-service maintenance device for the yaw brake disc is used, a first screw can be firstly used to pass through the first strip-shaped hole 510 and be screwed into the corresponding first screw hole 110, so that the locking plate 500 can be fixed on the fixed platform 100; when the movable platform 200 drives the power assembly 300 and the plane milling cutter head 400 to move to a desired position, a second screw may pass through the second strip-shaped hole 520 and be screwed into the corresponding second screw hole 210, so as to fix the movable platform 200 relative to the fixed platform 100, thereby ensuring the stability of the milling process.

The form of locking the movable platform 200 not only can ensure the reliability of fixing the movable platform 200, but also can fix the movable platform 200 at any position to ensure the smooth milling of the local deformation area of the yaw brake disc.

Referring to fig. 1, in the present embodiment, the number of the first bar-shaped holes 510 is multiple, and the multiple first bar-shaped holes 510 are arranged at intervals along the moving direction of the moving platform 200. This arrangement can increase the connection point between the locking plate 500 and the fixing platform 100, thereby improving the connection reliability between the locking plate 500 and the fixing platform 100, and on the other hand, when one of the first bar holes 510 is not aligned with the first screw hole 110, the other first bar holes 510 are aligned with the first screw hole 110, thereby realizing the fixed connection between the locking plate 500 and the fixing platform 100.

Similarly, in this embodiment, the number of the second bar-shaped holes 520 is also multiple, and the second bar-shaped holes 520 are arranged at intervals along the moving direction of the moving platform 200. This arrangement can increase the connection point between the locking plate 500 and the mobile platform 200, thereby improving the connection reliability between the locking plate 500 and the mobile platform 200, and on the other hand, when one of the second bar-shaped holes 520 cannot be aligned with the second screw hole 210, the other second bar-shaped holes 520 are aligned with the second screw hole 210, thereby realizing the fixed connection between the locking plate 500 and the mobile platform 200.

With reference to fig. 1 to fig. 3, in the present embodiment, the fixed platform 100 includes a fixed plate 120 and a movable mounting plate 130 that are vertically connected, specifically, the fixed plate 120 is configured to be fixedly connected to a fixed component of the wind turbine generator system, the movable platform 200 is movably mounted on the movable mounting plate 130, and the first screw hole 110 is opened in the movable mounting plate 130; the fixing plate 120 is provided with a milling opening 121 for exposing the planar milling cutter 400.

When the local deformation area of the yaw brake disc 010 needs to be milled, the movable platform 200 moves relative to the fixed platform 100, so that the plane milling cutter disc 400 moves towards the milling notch 121, and the milling operation is realized through the milling notch 121. The arrangement of the fixed platform 100 not only can realize effective fixation with the fixed components of the wind generating set, but also can be used as the installation foundation of the mobile platform 200 to ensure the smooth movement of the mobile platform 200.

Referring to fig. 2 and fig. 3, in the present embodiment, the fixing plate 120 is provided with a plurality of strip-shaped fixing holes 122, the fixing holes 122 are distributed around the milling cut 121, and the length direction of the fixing holes 122 is along the radial direction of the milling cut 121.

This kind of fixed orifices 122's the form that sets up, on the one hand, be convenient for install fixedly at different wind generating set, avoided when carrying out in service maintenance to different wind generating set's driftage brake disc 010, the situation that this driftage brake disc is in service maintenance device can't install smoothly because of this driftage brake disc that leads to after the change of wind generating set cabin screw hole position has improved its commonality, on the other hand, still be convenient for finely tune the position of this driftage brake disc in service maintenance device, make plane milling cutter dish 400 can accurately be fixed a position to the below of the deformation position of the driftage brake disc 010 of treating processing.

In this embodiment, the number of the fixing holes 122 is four, and two of the four fixing holes 122 are diagonally distributed.

Referring to fig. 1 to fig. 3, in the present embodiment, a supporting frame 140 is fixedly connected between the fixed plate 120 and the movable mounting plate 130, and the supporting frame 140 and the power assembly 300 are respectively disposed on two opposite sides of the movable mounting plate 130.

By arranging the support frame 140 between the fixed plate 120 and the movable mounting plate 130, the structure of the fixed platform 100 can be strengthened, the service life of the fixed platform 100 can be prolonged, and the power assembly 300 cannot be interfered by the movement of the support frame 140 due to the layout.

Referring to fig. 2, in the present embodiment, the fixed platform 100 is provided with a rotatable screw 610, and the movable platform 200 is fixedly provided with a nut (not shown), wherein the nut is spirally sleeved with the screw 610, and the movable platform 200 is slidably connected with the fixed platform 100.

When the plane milling cutter disc 400 needs to be close to the yaw brake disc 010 or be far away from the yaw brake disc 010, the lead screw 610 can be rotated, and at the moment, under the spiral cooperation effect of the lead screw 610 and the nut and the limitation of the sliding connection between the movable platform 200 and the fixed platform 100, the movable platform 200 can move up and down, so that the plane milling cutter disc 400 can be close to or far away from the yaw brake disc 010.

In other embodiments, a sliding table linear guide rail connection may also be adopted to realize the movement of the mobile platform 200.

Referring to fig. 1 and fig. 2, in the present embodiment, the movable mounting plate 130 is fixedly provided with a slide rail 630, the movable platform 200 is fixedly provided with a slide block 620, and the slide block 620 is in sliding fit with the slide rail 630. This setting can play the guide effect to moving platform 200's moving process, improves moving platform 200's removal smoothness nature.

Specifically, the number of the sliding rails 630 is two, and the two sliding rails 630 are arranged at intervals; correspondingly, two sliding blocks 620 are fixedly arranged on the moving plane, and the two sliding blocks 620 are respectively connected with the two sliding rails 630 in a one-to-one sliding manner.

Referring to fig. 1 and fig. 3, in the present embodiment, the screw 610 is fixedly connected with a handwheel 730. The rotation of the lead screw 610 can be driven by rotating the hand wheel 730 to adjust the feeding amount of the plane milling cutter disc 400, so that the milling depth is gradually increased to completely mill and remove the local deformation part of the yaw brake disc 010.

Referring to fig. 1 and fig. 3, in the present embodiment, the screw 610 is fixedly sleeved with the scale 710, and the fixed platform 100 is fixedly provided with the pointer 720, wherein the pointer 720 is used in cooperation with the scale 710.

Specifically, the scale marks are arranged on the periphery of the scale 710, the scale 710 synchronously rotates in the process of driving the screw 610 to rotate by using the hand wheel 730, and the feeding amount of the plane milling cutter disc 400 can be read out by observing the scale mark which is opposite to the pointer 720 at the moment, so that the adjustment of the feeding amount of the plane milling cutter disc 400 is more accurate. After the feed amount is adjusted each time, the mobile platform 200 can be fixed by the locking plate 500, that is: the plane milling cutter head 400 is fixed by the locking plate 500, so that the plane milling cutter head is prevented from sliding in the milling process.

In this embodiment, the handwheels 730 are fixedly mounted on the dial 710, the handwheels 730 are in the shape of handles, the number of the handwheels 730 is two, and the two handwheels 730 are arranged at intervals along the radial direction of the dial 710.

Referring to fig. 1 to 3, in the present embodiment, the power assembly 300 includes a driving motor 310 and a transmission shaft 320, and specifically, a housing of the driving motor 310 is fixedly connected to the movable platform 200, a motor shaft of the driving motor 310 is fixedly connected to a first end of the transmission shaft 320, and the planar milling cutter 400 is fixedly connected to a second end of the transmission shaft 320.

When the local deformation part of the yaw brake disc 010 needs to be milled, the motor shaft of the driving motor 310 rotates to drive the transmission shaft 320 to rotate, and the transmission shaft 320 further transmits the rotating power to the plane milling cutter disc 400, so that milling is realized. The power assembly 300 is simple in structure and convenient to arrange.

Referring to fig. 1 to fig. 3, in the present embodiment, a motor shaft of the driving motor 310 is connected to the transmission shaft 320 through a coupling 330.

It is understood that the motor shaft of the driving motor 310 may be fixedly connected to the transmission shaft 320 by bolts or other assembling methods, as long as the motor shaft is fixedly connected to the transmission shaft 320.

In this embodiment, the driving motor 310 is a general motor, in other embodiments, the driving motor 310 may also be a servo motor or a variable frequency motor, as long as the driving of the transmission shaft 320 can be realized by the driving motor 310 in this form, and the embodiment does not limit the specific form of the driving motor 310.

Referring to fig. 1 to fig. 3, in the embodiment, the movable platform 200 is fixedly provided with a bearing seat 340, the bearing seat 340 is provided with a support bearing, and the transmission shaft 320 penetrates through the support bearing and is fixedly sleeved with an inner ring of the support bearing. This setting can play certain supporting role to transmission shaft 320, increases transmission shaft 320's rigidity and stability, guarantees transmission shaft 320 pivoted stationarity.

When the in-service maintenance device for the yaw brake disc is used, the fixed plate 120 of the fixed platform 100 is fixedly arranged at a proper position of the wind generating set, and the local deformation area of the yaw brake disc 010 is milled through the rotation of the engine room of the wind generating set. Specifically, as shown in fig. 4, the milling is started from the lowest point of the local deformation, the nacelle is rotated alternately to the left and the right, the rotation range covers the local deformation region, and the hand wheel 730 can be rotated to increase the feed amount of the plane milling cutter head 400 every 1 rotation, the dial 710 is observed, the feed amount is adjusted every time by 0.2 to 0.5mm until the local deformation region of the yaw brake disc 010 is completely milled and removed, and the yaw brake disc 010 after the removal of the local deformation region is shown in fig. 5, at this time, the local deformation region of the yaw brake disc 010 becomes the arc-shaped notch 013.

At this time, an angle grinder can be used to polish the lacking portion of the yaw brake disc 010 flat, and at the same time, the iron rust, oil stain, moisture, and oxide skin in the range of 20mm near the upper welding portion 041 (between the upper disc face 011 of the yaw brake disc 010 and the upper 45 ° bevel of the prefabricated arc plate 020) and the lower welding portion 042 (between the lower disc face 012 of the yaw brake disc 010 and the lower 45 ° bevel of the prefabricated arc plate 020) are cleaned up, and the prefabricated arc plate 020 is spot-welded and fixed at the arc notch 013, wherein the thickness of the prefabricated arc plate 020 is larger than the thickness of the yaw brake disc 010, and when the prefabricated arc plate 020 is spot-welded and fixed, the upper surface of the prefabricated arc plate 020 protrudes a certain amount than the upper surface of the yaw brake disc 010, and the lower surface of the prefabricated arc plate protrudes a certain amount than the lower surface of the yaw brake disc 010, specifically, the upper surface and the lower surface of the prefabricated arc plate 020 protrudes 2mm respectively than the upper surface and the lower surface of the yaw brake disc 010. Referring to fig. 6 and 7, a double-sided single-sided 45-degree groove is formed on the prefabricated arc-shaped plate 020, so that the welding amount is reduced, and the welding deformation is reduced by double-sided welding. Specifically, the welding method can be carbon dioxide gas shielded welding, the welding method has high welding efficiency, can shorten the construction period, and completes the welding filling of the positions to be welded according to the welding process qualified by assessment. And carrying out ultrasonic detection on the upper welding part 041 and the lower welding part 042, strictly controlling the quality of the upper welding part 041 and the lower welding part 042, and repairing the upper welding part 041 and the lower welding part 042 according to the original process if the defects exceed the standard.

Finally, the in-service maintenance device of the yaw brake disc is used for milling the disc surface (hereinafter referred to as the upper disc surface 011 and the lower disc surface 012) of the whole yaw brake disc 010 to achieve the effects that the disc surface planeness of the yaw brake disc 010 is less than or equal to +/-0.2 mm, the surface jumping is less than or equal to +/-0.4 mm and the disc thickness is less than or equal to +/-0.4 mm, and the running requirement of the yaw brake disc 010 is met. In FIG. 7, a is 25mm, b is 1 to 2mm, and c is 1 to 3mm.

In this embodiment, the prefabricated arc plate 020 can be made of a steel plate.

In conclusion, the in-service maintenance device for the yaw brake disc has the following advantages:

(1) The existing technology needs to prepare yaw brake disc 010 finished spare parts in advance, lease a crane or a hoisting ship, dismantle the cabin, dismantle yaw brake disc 010, install the cabin and the like, and meanwhile, the installation accuracy problem needs to be considered when installing yaw brake disc 010 and the cabin, the construction process is complex and dangerous and high, however, the construction process only needs to be carried out by installing corresponding devices inside the tower barrel on the wind turbine generator set tower, the equipment is light and handy, the operation is easy, and the construction process is simple. Firstly, the in-service maintenance device for the yaw brake disc is used for milling and removing a local serious deformation area of the yaw brake disc 010, then welding a prefabricated arc plate 020 which is the same as the milled and removed part, finally milling and flattening the disc surface of the whole yaw brake disc, recovering the structural size, the disc surface precision and the function of the yaw brake disc 010, recovering the operation of a wind generating set, and overcoming the defects of complex construction procedures and high risk in the prior art.

(2) In the prior art, the yaw brake disc 010 finished product is prepared through multiple processing procedures with long period, the cost of renting a crane or a hoisting ship is high, the construction period is long, and the maintenance cost and the loss of generated energy are large. However, the in-service maintenance device for the yaw brake disc adopts the in-service repair of personnel, the arc-shaped steel plate in the market is easy to obtain, a crane or a hoisting ship does not need to be leased, the construction period of operation on the tower is short, the maintenance cost and the loss of generated energy are small, and the economic benefit is obviously improved.

(3) After the tower is maintained, the upper welding part 041 and the lower welding part 042 are subjected to nondestructive testing, simultaneously, the disc surface is finally subjected to milling, the flatness, the jump and the mechanical property of the disc surface of the yaw brake disc 010 meet the use requirements of a fan, and the maintenance quality is good.

(4) The in-service maintenance device for the yaw brake disc not only can mill the local deformation part of the yaw brake disc 010, but also can mill the disc surface of the brake disc, is high in milling and milling efficiency, and achieves multiple purposes.

(5) The loading capacity of the wind generating set is larger and larger, the market for maintaining the local deformation of the yaw brake disc 010 is more and more, and the yaw brake disc in-service maintenance device is adopted for maintenance, so that the demand is more and more.

Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the scope or spirit of the present invention, and the scope of the present invention is defined by the appended claims.

Finally, it should also be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising one of 8230; \8230;" 8230; "does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.

In the above embodiments, the descriptions of the orientations such as "upper", "lower", "side", and the like are based on the drawings.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. An in-service maintenance device for a yaw brake disc is characterized by comprising a fixed platform (100), a movable platform (200), a power assembly (300), a plane milling cutter disc (400) and a locking plate (500), wherein the fixed platform (100) is configured to be fixedly connected with a fixed part of a wind generating set, the movable platform (200) is movably mounted on the fixed platform (100), and the power assembly (300) is mounted on the movable platform (200) and moves synchronously with the movable platform (200); the plane milling cutter disc (400) is mounted at the power output end of the power assembly (300), and the power assembly (300) is configured to drive the plane milling cutter disc (400) to rotate; the first side of the locking plate (500) is connected with the fixed platform (100), and the second side of the locking plate (500) is detachably and fixedly connected with the movable platform (200).

2. The in-service maintenance device for the yaw brake disc according to claim 1, wherein the fixed platform (100) is provided with a plurality of first screw holes (110), the plurality of first screw holes (110) are arranged at intervals along a moving direction of the movable platform (200), the movable platform (200) is provided with a plurality of second screw holes (210), and the plurality of second screw holes (210) are arranged at intervals along the moving direction of the movable platform (200); first bar hole (510) have been seted up to the first side of lockplate (500), second bar hole (520) have been seted up to the second side of lockplate (500), first bar hole (510) with second bar hole (520) all are followed the moving direction of moving platform (200) extends, just first bar hole (510) with first screw (110) are relative, second bar hole (520) with second screw (210) are relative.

3. The in-service yaw brake disc service apparatus of claim 2, wherein the fixed platform (100) comprises a fixed plate (120) and a movable mounting plate (130) which are vertically connected, the fixed plate (120) is configured to be fixedly connected with a fixed component of the wind generating set, the movable platform (200) is movably mounted on the movable mounting plate (130), and the first screw hole (110) is opened in the movable mounting plate (130); the fixed plate (120) is provided with a milling opening (121) for exposing the plane milling cutter disc (400).

4. The in-service maintenance device for the yaw brake disc according to claim 3, wherein the fixing plate (120) is provided with a plurality of strip-shaped fixing holes (122), the fixing holes (122) are distributed around the milling cut (121), and the length direction of the fixing holes (122) is along the radial direction of the milling cut (121).

5. The in-service maintenance device for the yaw brake disc according to claim 3, wherein a support frame (140) is fixedly connected between the fixed plate (120) and the movable mounting plate (130), and the support frame (140) and the power assembly (300) are respectively arranged on two opposite sides of the movable mounting plate (130).

6. An in-service maintenance device for a yaw brake disc according to claim 1, wherein the fixed platform (100) is provided with a rotatable lead screw (610), the movable platform (200) is fixedly provided with a nut, the nut is spirally sleeved with the lead screw (610), and the movable platform (200) is slidably connected with the fixed platform (100).

7. An in-service yaw brake disc service device according to claim 6, wherein a hand wheel (730) is fixedly connected to the lead screw (610).

8. An in-service yaw brake disc service device according to claim 6, wherein a dial (710) is fixedly mounted on the lead screw (610), a pointer (720) is fixedly arranged on the fixed platform (100), and the pointer (720) is used in cooperation with the dial (710).

9. The in-service maintenance device for the yaw brake disc according to claim 1, wherein the power assembly (300) comprises a driving motor (310) and a transmission shaft (320), a housing of the driving motor (310) is fixedly connected with the movable platform (200), a motor shaft of the driving motor (310) is fixedly connected with a first end of the transmission shaft (320), and the plane milling cutter head (400) is fixedly connected with a second end of the transmission shaft (320).

10. An in-service maintenance device for a yaw brake disc according to claim 9, wherein a bearing seat (340) is fixedly arranged on the moving platform (200), a support bearing is installed on the bearing seat (340), and the transmission shaft (320) penetrates through the support bearing and is fixedly sleeved with an inner ring of the support bearing.

Images