Repairing device for pinion bearing hole of wind turbine generator gearbox

Abstract

The invention provides a repairing device for a pinion bearing hole of a wind turbine generator gearbox, and relates to the technical field of wind power generation. The repairing device comprises a datum plate, the datum plate is provided with a process via hole, a datum mounting hole is formed in the hole edge of the process via hole, the datum mounting hole is matched with a transparent cover mounting hole in size, and a connecting screw rod penetrates through the datum mounting hole and is in threaded connection with a corresponding transparent cover mounting screw hole so that the datum plate can be temporarily fixed to a box body of the gearbox; the working table comprises a working table plate and can move on the datum plate in the specified direction and the direction perpendicular to the specified direction; the repairing machine comprises a repairing tool bit, and the pinion bearing hole can be machined to a set size through the repairing tool bit to form a repairing hole; the eccentric sleeve is of a circular-ring-shaped eccentric structure and is arranged in the repairing hole in an embedded mode, and deviation between the center of the pinion bearing hole and the center of the repairing hole is compensated through the eccentric sleeve. The problems that in the prior art, cost is high and loss is large due to the fact that a gearbox needs to be detached from a tower of a wind driven generator and then returned to a factory to be repaired are solved.

Description

Technical Field

[0001] The invention relates to the technical field of wind power generation, and in particular to a repairing device for a pinion bearing hole of a wind turbine gear box. Background Art

[0002] In wind turbines, the internal lubrication of gearboxes is often done by splashing and forced lubrication. This lubrication method is to increase the lubricant pressure of the system by mechanical pumps, so as to promote the lubricating oil to establish a thicker lubricating film between the rollers and raceways and the meshing tooth surfaces of the gears, further improving the lubrication conditions, reducing friction, reducing power consumption, and improving the lubrication quality and effect. After long-term operation observation, the pinion bearings of the mechanical pump power transmission system of most gearboxes will gradually fail after 5-6 years of operation. If the pinion bearings are not replaced in time, the large and small gears in this transmission system will fail, which will then cause the pinion bearing mounting holes to deform, making the pinion bearing mounting holes fail because the pinion bearings cannot be installed. This will cause insufficient lubrication pressure in the gearbox and high temperature alarms at the temperature control monitoring point to cause shutdowns, which will cause long-term shutdowns or low-power operations of wind turbines. Since it is currently impossible to repair the bearing mounting holes on the tower, the gearbox is eventually removed from the rack and returned to the factory, and the box body is replaced before being transported to the wind farm, and then the gearbox is reinstalled. During this process, the removal of the original gearbox and the reinstallation of the new gearbox both involve the entry of heavy cranes for high-altitude lifting operations, which has high safety risks; the return of the original gearbox to the factory and the transportation of the new gearbox both require transportation costs and time, especially for remote wind farms; obviously, the whole process is quite difficult to coordinate. The current method of handling bearing mounting holes has high safety risks and costs, is difficult to coordinate manpower and material resources, and has to face the loss of electricity caused by long-term unit shutdown.

[0003] Therefore, there is an urgent need for a device that can solve at least one of the above problems. Summary of the invention

[0004] The purpose of the embodiment of the present invention is to provide a repair device for the pinion bearing hole of a wind turbine gearbox, which is used to solve the problem in the prior art that the gearbox needs to be removed from the tower of the wind turbine and returned to the factory for repair, resulting in high costs and large losses.

[0005] In order to achieve the above-mentioned object, the present invention provides a repair device for a pinion bearing hole of a wind turbine gearbox, wherein the pinion bearing hole is provided on a gearbox body, a bearing hole of a large gear meshing with the pinion gear is also provided on the gearbox body, and a plurality of cover-through mounting screw holes are provided at the edge of the bearing hole of the large gear. The repair device for the pinion bearing hole of the wind turbine gearbox comprises: The reference plate has a process through hole that matches the shape of the pinion bearing hole, and at least one pair of reference mounting holes is opened at the edge of the process through hole. The reference mounting holes match the size of the transparent cover mounting holes. The connecting screw passes through the reference mounting holes and is screwed with the corresponding transparent cover mounting screw holes to temporarily fix the reference plate on the gear box body. A workbench, including a workbench plate, is arranged on a reference plate, and the workbench plate can move along a specified direction and vertically in a specified direction on the reference plate; A repair machine, comprising a repair cutter head, arranged on a workbench plate of the workbench, and capable of machining the pinion bearing hole to a set size to form a repair hole through the repair cutter head; The eccentric sleeve is a circular eccentric structure. The eccentric sleeve is nested in the repair hole, and the pinion bearing is embedded in the inner hole of the eccentric sleeve. The eccentric sleeve is used to compensate for the deviation between the pinion bearing hole and the center of the repair hole.

[0006] Specifically, the workbench further includes: a first moving component and a second moving component; The first moving assembly includes a first platen, which is movably disposed on the reference plate and can move along a specified direction on the reference plate; The second moving assembly includes a pair of second guide rails, which are arranged on the first table according to a first given spacing and in a vertical specified direction, and the working table is movably arranged on the pair of second guide rails.

[0007] Specifically, the first moving assembly further includes: a first driver, a first lead screw, a first nut, a pair of first guide rails and a pair of first lead screw seats; A pair of first guide rails are arranged on the reference plate at a second given interval and in parallel with each other, and the first platform is slidably arranged on the pair of first guide rails and can move along the extension direction of the first guide rails; The first nut is threadedly connected to the first lead screw and fixed to the first platen; The first lead screw is arranged between a pair of first guide rails, and its extension direction is consistent with that of the first guide rails; A pair of first screw seats are respectively arranged at two ends of the first screw and are used to support the first screw; The first driver is disposed on the reference plate and is used for driving the first lead screw to rotate.

[0008] Specifically, the second moving assembly further includes: a second nut, a second lead screw, a second driver and a pair of second lead screw seats; The second nut is threadedly connected to the second lead screw and fixed to the workbench; The second lead screw is arranged between the pair of second guide rails, and its extension direction is consistent with that of the second guide rails; A pair of second lead screw seats are respectively arranged at two ends of the second lead screw, and are used to support the second lead screw; The second driver is arranged on the first platen and is used for driving the second lead screw to rotate.

[0009] Specifically, the repair device further includes: a detection component, which is arranged on the workbench and is used to detect the size of the repair hole.

[0010] Specifically, the detection assembly includes: a detection mounting seat, a detection clamp and a detection instrument; The detection mounting seat is fixed on the workbench plate; The detection clamping member has a connecting end and a clamping end, the connecting end of the detection clamping member is movably arranged on the detection mounting seat, and the clamping end of the detection clamping member is used to clamp the detection instrument; The detection instrument is used to detect the size of the repair hole.

[0011] Specifically, the detection clamp comprises: a first clamping rod, a second clamping rod and an instrument clamp; One end of the first clamping rod is a spherical structure, one end of the spherical structure serves as a connecting end of the detection clamping member, a spherical mounting hole matching the shape of the spherical structure is provided on the detection mounting seat, one end of the spherical structure of the first clamping rod is rotatably arranged in the spherical mounting hole, and the other end of the first clamping rod is hinged to the movable end of the second clamping rod; The installation end of the second clamping rod is used as the clamping end of the detection clamping member and is provided with an instrument clamp, and the detection instrument is clamped by the instrument clamp.

[0012] Specifically, the repair device also includes: a dust blower, which is movably arranged on the workbench and is used to remove waste chips generated when the repair tool head processes the pinion bearing hole.

[0013] Specifically, the repair device further includes: a support, which is arranged on the workbench and is used to support the dust blower.

[0014] Specifically, a receiving hole matching the shape of the dust blower is provided on the support, and the dust blower can be embedded in the receiving hole.

[0015] The repair device for the pinion bearing hole of the wind turbine gearbox provided by the present invention has a reference mounting hole on the reference plate that matches the size of the through-cover mounting hole on the gearbox body. The reference plate can be temporarily fixed to the gearbox body through the reference mounting hole, the through-cover mounting hole and the connecting screw. In this way, the workbench and the repair machine installed on the reference plate can also be temporarily fixed to the gearbox body. The repair machine can use a repair cutter head to repair the pinion bearing hole to repair the pinion bearing hole into a repair hole of a set size, and then the eccentric sleeve is embedded in the repair hole, and the pinion bearing is embedded in the inner hole of the eccentric sleeve. There is a deviation between the inner diameter center and the outer diameter center of the eccentric sleeve. The deviation between the pinion bearing hole and the repair hole center is compensated by the deviation between the inner diameter center and the outer diameter center of the eccentric sleeve. In the repair device provided by the present invention, the repair of the pinion bearing hole does not require the gearbox to be removed from the tower of the wind turbine, which greatly reduces the repair cost and reduces the loss, and solves the problem of high cost and large loss in the prior art that the gearbox needs to be removed from the tower of the wind turbine and then returned to the factory for repair.

[0016] Other features and advantages of the embodiments of the present invention will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the embodiments of the present invention and constitute a part of the specification. Together with the following specific implementations, they are used to explain the embodiments of the present invention, but do not constitute a limitation on the embodiments of the present invention. In the accompanying drawings: Figure 1 It is a structural schematic diagram of a repair device for a pinion bearing hole of a wind turbine gearbox provided by the present invention; Figure 2 It is a structural schematic diagram of another angle of the repair device for the pinion bearing hole of the wind turbine gear box provided by the present invention; Figure 3 It is a structural schematic diagram of another angle of the repair device for the pinion bearing hole of the wind turbine gear box provided by the present invention; Figure 4 The present invention is a schematic structural diagram of an eccentric sleeve in a repair device for a pinion bearing hole of a wind turbine gearbox provided by the present invention.

[0018] Description of Reference Numerals 1-reference plate; 2-workbench; 3-repairing machine; 5-detection assembly; 6-dust blower; 7-support; 21-workbench plate; 22-first moving assembly; 23-second moving assembly; 221-first table; 222-first guide rail; 223-first lead screw; 224-first lead screw seat; 231-second guide rail; 233-second lead screw; 234-second lead screw seat; 51-detection mounting seat; 52-detection clamp; 521-first clamping rod; 522-second clamping rod; 523-instrument clamp. DETAILED DESCRIPTION

[0019] The specific implementation of the embodiment of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the embodiment of the present invention, and is not used to limit the embodiment of the present invention.

[0020] Figure 1 It is a structural schematic diagram of a repair device for a pinion bearing hole of a wind turbine gearbox; Figure 2 It is a structural schematic diagram of a repair device for a pinion bearing hole of a wind turbine gearbox from another angle; Figure 3 It is a structural schematic diagram of a repair device for a pinion bearing hole of a wind turbine gearbox from another angle; Figure 4 Schematic diagram of the structure of the eccentric sleeve in the repair device for the pinion bearing hole of the wind turbine gearbox.

[0021] like Figure 1-Figure 4 As shown, the present invention provides a repair device for a pinion bearing hole of a wind turbine gearbox, wherein the pinion bearing hole is provided on a gearbox body, a bearing hole of a large gear meshing with the pinion gear is also provided on the gearbox body, and a plurality of cover-through mounting screw holes are provided at the edge of the bearing hole of the large gear. The repair device for the pinion bearing hole of the wind turbine gearbox comprises: The reference plate 1 has a process through hole that matches the shape of the pinion bearing hole, and at least one pair of reference mounting holes is opened at the edge of the process through hole. The reference mounting holes match the sizes of the transparent cover mounting holes. The connecting screws pass through the reference mounting holes and are screwed with the corresponding transparent cover mounting screw holes to temporarily fix the reference plate 1 on the gear box body. The workbench 2 includes a workbench plate 21, which is disposed on the reference plate 1, and the workbench plate 21 can move on the reference plate 1 along a specified direction and perpendicular to a specified direction; A repair machine 3, including a repair cutter head, which is arranged on the workbench plate 21 of the workbench 2, and can process the pinion bearing hole to a set size to become a repair hole through the repair cutter head; The eccentric sleeve is a circular eccentric structure. The eccentric sleeve is nested in the repair hole, and the pinion bearing is embedded in the inner hole of the eccentric sleeve. The eccentric sleeve is used to compensate for the deviation between the pinion bearing hole and the center of the repair hole.

[0022] The repair device for the pinion bearing hole of the wind turbine gearbox provided by the present invention uses the cover mounting hole on the gearbox body to temporarily fix the reference plate 1 on the gearbox body. When the reference plate 1 is temporarily fixed on the body, the process through hole opened on the reference plate 1 surrounds the pinion bearing hole. The repair machine 3 for repairing the pinion bearing hole is arranged on the workbench 21 of the workbench 2. The workbench 2 is arranged on the reference plate 1. When the workbench 21 moves on the reference plate 1 along the set direction and the vertical specified direction, it can drive the repair machine 3 to move synchronously to adjust the position of the repair cutter head of the repair machine 3. The repair tool head is positioned so that it moves to the top of the pinion bearing hole surrounded by the process through hole to facilitate the subsequent repair of the pinion bearing hole, and the pinion bearing hole is repaired to a repair hole of a set size. Usually, the size of the repair hole and the original pinion bearing hole are different and there is a deviation in the center. If the pinion bearing is directly installed in the repair hole, not only will the pinion gear not be installed in the repair hole, but it will also cause the center distance between the pinion gear supported by the pinion bearing and the large gear to deviate, making it impossible for the pinion gear to mesh with the large gear. In order to ensure that the pinion gear and the large gear can mesh, an eccentric sleeve is embedded in the repair hole, such as Figure 4 As shown, the eccentric sleeve is a circular eccentric structure, the outer diameter size of the eccentric sleeve matches the size of the repair hole so that the eccentric sleeve can be embedded in the repair hole, the inner diameter size of the eccentric sleeve matches the size of the pinion bearing so that the pinion bearing can be installed in the inner hole of the eccentric sleeve, and there is a deviation between the inner diameter center and the outer diameter center of the eccentric sleeve. The deviation between the repair hole and the center of the original pinion bearing hole is compensated by the deviation between the inner diameter and the outer diameter center of the eccentric sleeve, so that the pinion supported by the pinion bearing arranged in the inner hole of the eccentric sleeve can mesh smoothly with the large gear, and the repair of the entire pinion bearing hole does not require the gear box to be removed from the tower of the wind turbine, which greatly reduces the repair cost and reduces the loss, and solves the problem of high cost and large loss caused by the need to remove the gear box from the tower of the wind turbine and return it to the factory for repair in the prior art.

[0023] Repair machine 3 is a magnetic drill, and the repair tool head is a boring tool. The small gear bearing hole is repaired by the boring tool, and the small gear bearing hole is bored into a repair hole. When repairing, first use a double-edged boring tool for rough boring, measure the size of the small gear bearing hole after rough boring, and calculate the center distance between the small gear bearing hole and the large gear bearing hole after rough boring. The center distance is accurate to within 0.05mm. If there is an error in the center distance, the magnetic drill base position can be adjusted through the magnetic drill fine-tuning device to adjust the boring center and then adjust the center distance. Then feed 1-2mm again, bore the small gear bearing hole, and then measure the center distance. Fine-tune until the center distance is qualified and the boring depth is 15mm. After rough boring, fine boring is carried out. After adjusting the center distance, the pinion bearing hole on the gearbox side can be bored to ɸ78-ɸ85, that is, the hole size is repaired to ɸ78-ɸ85, the ovality is less than 0.03mm, and the inner hole surface roughness is not less than Ra6.3. Then change the tool to blunt the sharp angle of the hole by 0.5×45°.

[0024] In one embodiment, Figure 1-Figure 3 As shown, the workbench 2 further includes: a first moving component 22 and a second moving component 23; The first moving assembly 22 includes a first platen 221, which is movably disposed on the reference plate 1 and can move along a specified direction on the reference plate 1; The second moving assembly 23 includes a pair of second guide rails 231 . The pair of second guide rails 231 are arranged on the first platen 221 at a first given interval and in a vertical specified direction. The working platen 21 is movably arranged on the pair of second guide rails 231 .

[0025] The first moving assembly 22 further includes: a first driver, a first lead screw 223, a first nut, a pair of first guide rails 222 and a pair of first lead screw seats 224; A pair of first guide rails 222 are arranged on the reference plate 1 at a second given interval and in parallel with each other, and a first platform 221 is slidably arranged on the pair of first guide rails 222 and can move along the extension direction of the first guide rails 222; The first nut is threadedly connected to the first lead screw 223 and fixed to the first platen 221; The first lead screw 223 is disposed between the pair of first guide rails 222 , and its extension direction is consistent with that of the first guide rails 222 ; A pair of first screw seats 224 are respectively disposed at both ends of the first screw 223 for supporting the first screw 223; The first driver is disposed on the reference plate 1 and is used for driving the first lead screw 223 to rotate.

[0026] The second moving assembly 23 further includes: a second nut, a second lead screw 233, a second driver and a pair of second lead screw seats 234; The second nut is screwed onto the second lead screw 233 and fixed to the workbench 21; The second lead screw 233 is disposed between the pair of second guide rails 231 , and its extension direction is consistent with that of the second guide rails 231 ; A pair of second screw seats 234 are respectively disposed at both ends of the second screw 233 for supporting the second screw 233; The second driver is disposed on the first platen 221 and is used for driving the second lead screw 233 to rotate.

[0027] A pair of first guide rails 222 are arranged on the reference plate 1 at a second given interval and in parallel with each other. The extension direction of the first guide rails 222 is a specified direction. The first platform 221 is slidably arranged on the pair of first guide rails 222. In order to make the first platform 221 slidably arranged on the first guide rails 222, a first slider is slidably arranged on each first guide rail 222. The first slider is fixed to the first platform 221. The first platform 221 is slidably arranged on the first guide rail 222 through the first slider. The first slider moves in the extension direction of the first guide rail 222 to drive the first platform 221 to move. 1 synchronously moves, a first lead screw 223 is arranged between a pair of first guide rails 222, the first lead screw 223 and the first guide rail 222 extend in the same direction, a pair of first lead screw seats 224 are supported at both ends of the first lead screw 223, a first nut is screwed on the first lead screw 223 and fixed to the first platen 221, a first driver is arranged on the reference plate 1 to drive the first lead screw 223 to rotate, the first lead screw 223 rotates to drive the first nut to move along the extension direction of the first lead screw 223, and further drives the first platen 221 to move along the extension direction of the first guide rail 222.

[0028] A pair of second guide rails 231 are arranged on the first table 221 at a first given interval and in parallel with each other. The second guide rails 231 are arranged perpendicular to the first guide rails 222, so that the extension direction of the second guide rails 231 is perpendicular to the extension direction of the first guide rails 222, that is, the second guide rails 231 are perpendicular to the set direction. The workbench 21 is slidably arranged on the pair of second guide rails 231, and a second slider is slidably arranged on each second guide rail 231. The second slider is fixed to the workbench 21, and the second slider slides on the second guide rails 231 to drive the workbench 21 to move on the second guide rails 231. A second lead screw 233 is arranged between the pair of second guide rails 231. The two ends of the second lead screw 233 are respectively supported by the second lead screw seat 234, the second nut is screwed on the second lead screw 233 and fixed to the workbench 21, and a second driver is arranged on the first workbench 221 to drive the second lead screw 233 to rotate. The rotation of the second lead screw 233 drives the second nut and the workbench 21 to move along the extension direction of the second guide rail 231. When the repair machine 3 is used to repair the pinion bearing hole, the workbench 21 of the workbench 2 is moved in the specified direction and perpendicular to the specified direction to adjust the position of the repair head of the repair machine 3, so as to repair the pinion bearing hole into a repair hole of a set size, and at the same time, the accuracy of the repair hole is also improved.

[0029] In order to facilitate and quickly detect the size of the repair hole, the repair device further includes: a detection component 5, which is arranged on the workbench 21 and is used to detect the size of the repair hole.

[0030] The detection assembly 5 comprises: a detection mounting seat 51, a detection clamping member 52 and a detection instrument 53; The detection mounting seat 51 is fixed on the workbench plate 21; The detection clamping member 52 has a connecting end and a clamping end. The connecting end of the detection clamping member 52 is movably arranged on the detection mounting seat 51. The clamping end of the detection clamping member 52 is used to clamp the detection instrument. The detection instrument is used to detect the size of the repair hole.

[0031] The detection clamping member 52 includes: a first clamping rod 521, a second clamping rod 522 and an instrument clamp 523; One end of the first clamping rod 521 is a spherical structure, and one end of the spherical structure serves as a connecting end of the detection clamping member 52. A spherical mounting hole that matches the shape of the spherical structure is provided on the detection mounting seat 51. One end of the spherical structure of the first clamping rod 521 can be rotatably arranged in the spherical mounting hole, and the other end of the first clamping rod 521 is hinged to the movable end of the second clamping rod 522. The installation end of the second clamping rod 522 is provided with an instrument clamp 523 as the clamping end of the detection clamping member 52, and the detection instrument is clamped by the instrument clamp 523.

[0032] In the process of repairing the pinion bearing hole, it is necessary to continuously inspect the pinion bearing hole during the repair process. In order to facilitate the inspection, such as Figure 1-Figure 3 As shown, a detection mounting seat 51 is arranged on the workbench 21, one end of a first clamping rod 521 of the detection clamping member 52 is a spherical structure, and a spherical mounting hole that matches the shape of the spherical structure is arranged on the detection mounting seat 51, and one end of the spherical structure of the first clamping rod 521 can be rotatably arranged in the spherical mounting hole, so that a spherical joint is formed between the first clamping rod 521 and the detection mounting seat 51, and the first clamping rod 521 can rotate within a specified angle range on the detection mounting seat 51, and the other end of the first clamping rod 521 is connected to the second The movable end of the clamping rod 522 is hinged, and the mounting end of the second clamping rod 522 is provided with an instrument clamp 523. The instrument clamp 523 is used to clamp the detection instrument. When using the detection instrument for detection, the connection end between the first clamping rod 521 and the detection mounting seat 51 and the hinged end of the first clamping rod 521 and the second clamping rod 522 can be adjusted to adjust the detection instrument to a suitable position to detect the repair hole. The detection instrument is an inside diameter micrometer. In the process of detecting the repair hole, calipers, outside diameter micrometers, etc. are also used to detect the diameter of the repair hole.

[0033] In the process of using a repair cutter head to repair the pinion bearing hole, processing waste chips will be generated. In order to quickly remove the waste chips and facilitate subsequent processing and testing, the repair device also includes: a dust blower 6, which is movably arranged on the workbench 21, and is used to remove the waste chips generated when the repair cutter head processes the pinion bearing hole.

[0034] The repair device further comprises: a support 7 , which is arranged on the workbench 21 and is used to support the dust blower 6 .

[0035] A receiving hole matching the shape of the dust blower 6 is provided on the support 7, and the dust blower 6 can be embedded in the receiving hole.

[0036] When using a repair tool head to repair the pinion bearing hole, waste chips will be generated during the processing. In order to clean up the waste chips in time to facilitate subsequent inspection or continued processing, a dust blower 6 is set. When the waste chips need to be removed, the dust blower 6 is used to blow air into the pinion bearing hole to blow out the waste chips in the pinion bearing hole, which is convenient for subsequent processes. In order to facilitate the storage of the dust blower 6, a support 7 is set on the workbench 21, and a storage hole is opened on the support 7 for storing the dust blower 6. In this way, after using the dust blower 6 to blow out the waste chips in the pinion bearing hole, the dust blower 6 is embedded in the storage hole set in the support 7. The support 7 is set to facilitate the dust blower 6 to be movably set on the workbench 21.

[0037] The repair device for the pinion bearing hole of the wind turbine gearbox provided by the present invention has a reference mounting hole on the reference plate that matches the size of the through-cover mounting hole on the gearbox body. The reference plate can be temporarily fixed to the gearbox body through the reference mounting hole, the through-cover mounting hole and the connecting screw. In this way, the workbench and the repair machine installed on the reference plate can also be temporarily fixed to the gearbox body. The repair machine can use a repair cutter head to repair the pinion bearing hole to repair the pinion bearing hole into a repair hole of a set size, and then the eccentric sleeve is embedded in the repair hole, and the pinion bearing is embedded in the inner hole of the eccentric sleeve. There is a deviation between the inner diameter center and the outer diameter center of the eccentric sleeve. The deviation between the pinion bearing hole and the repair hole center is compensated by the deviation between the inner diameter center and the outer diameter center of the eccentric sleeve. In the repair device provided by the present invention, the repair of the pinion bearing hole does not require the gearbox to be removed from the tower of the wind turbine, which greatly reduces the repair cost and reduces the loss, and solves the problem of high cost and large loss in the prior art that the gearbox needs to be removed from the tower of the wind turbine and then returned to the factory for repair.

[0038] The optional implementation modes of the embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the embodiments of the present invention are not limited to the specific details in the above implementation modes. Within the technical concept of the embodiments of the present invention, various simple modifications can be made to the technical scheme of the embodiments of the present invention, and these simple modifications all belong to the protection scope of the embodiments of the present invention.

[0039] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, the embodiments of the present invention will not further describe various possible combinations.

[0040] In addition, various implementation modes of the embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the embodiments of the present invention, they should also be regarded as the contents disclosed by the embodiments of the present invention.

Claims

1. A repair device for a pinion bearing hole of a wind turbine gearbox, wherein the pinion bearing hole is provided on the gearbox body, and a large gear bearing hole for meshing with the pinion is also provided on the gearbox body, and a plurality of cover-through mounting screw holes are provided at the edge of the large gear bearing hole, characterized in that: The repair device for the pinion bearing hole of the wind turbine gearbox comprises: The reference plate (1) has a process through hole that matches the shape of the pinion bearing hole, and at least one pair of reference mounting holes is opened at the edge of the process through hole, the reference mounting holes match the size of the transparent cover mounting holes, and the connecting screws pass through the reference mounting holes and are screwed to the corresponding transparent cover mounting screw holes to temporarily fix the reference plate (1) on the gear box body; A workbench (2) comprising a workbench plate (21) disposed on the reference plate (1), wherein the workbench plate (21) is capable of moving along a specified direction and perpendicular to a specified direction on the reference plate (1); A repair machine (3) comprising a repair cutter head, which is arranged on a workbench plate (21) of the workbench (2), and can process the pinion bearing hole to a set size to form a repair hole through the repair cutter head; The eccentric sleeve is a circular eccentric structure. The eccentric sleeve is nested in the repair hole, and the pinion bearing is embedded in the inner hole of the eccentric sleeve. The eccentric sleeve is used to compensate for the deviation between the pinion bearing hole and the center of the repair hole.

2. The repair device for the pinion bearing hole of the wind turbine gearbox according to claim 1, characterized in that: The workbench (2) further comprises: a first moving component (22) and a second moving component (23); The first moving assembly (22) comprises a first platform (221) which is movably arranged on the reference plate (1) and is capable of moving along a specified direction on the reference plate (1); The second moving assembly (23) comprises a pair of second guide rails (231), the pair of second guide rails (231) being arranged on the first table (221) at a first given spacing and in a vertical specified direction, and the working table (21) being movably arranged on the pair of second guide rails (231).

3. The repair device for the pinion bearing hole of the wind turbine gearbox according to claim 2, characterized in that: The first moving assembly (22) further comprises: a first driver, a first lead screw (223), a first nut, a pair of first guide rails (222), and a pair of first lead screw seats (224); A pair of first guide rails (222) are arranged on the reference plate (1) at a second given interval and in parallel with each other, and a first platform (221) is slidably arranged on the pair of first guide rails (222) and is movable along the extension direction of the first guide rails (222); The first nut is threaded onto the first lead screw (223) and fixed to the first platform (221); The first lead screw (223) is arranged between a pair of first guide rails (222), and its extension direction is consistent with the extension direction of the first guide rails (222); A pair of first lead screw seats (224) are respectively arranged at two ends of the first lead screw (223) and are used to support the first lead screw (223); The first driver is arranged on the reference plate (1) and is used to drive the first lead screw (223) to rotate.

4. The repair device for the pinion bearing hole of the wind turbine gearbox according to claim 2, characterized in that: The second moving assembly (23) further comprises: a second nut, a second lead screw (233), a second driver, and a pair of second lead screw seats (234); The second nut is threaded onto the second lead screw (233) and fixed to the workbench (21); The second lead screw (233) is arranged between the pair of second guide rails (231), and its extension direction is consistent with the extension direction of the second guide rails (231); A pair of second lead screw seats (234) are respectively arranged at two ends of the second lead screw (233) and are used to support the second lead screw (233); The second driver is arranged on the first platform (221) and is used to drive the second lead screw (233) to rotate.

5. The repair device for the pinion bearing hole of the wind turbine gearbox according to claim 1, characterized in that: The repair device further comprises: a detection component (5) arranged on the workbench (21) and used for detecting the size of the repair hole.

6. The repair device for the pinion bearing hole of the wind turbine gearbox according to claim 5, characterized in that: The detection assembly (5) comprises: a detection mounting seat (51), a detection clamping member (52) and a detection instrument; The detection mounting seat (51) is fixed on the workbench (21); The detection clamp (52) has a connection end and a clamping end, the connection end of the detection clamp (52) is movably arranged on the detection mounting seat (51), and the clamping end of the detection clamp (52) is used to clamp the detection instrument (51); The detection instrument is used to detect the size of the repair hole.

7. The repair device for the pinion bearing hole of the wind turbine gearbox according to claim 6, characterized in that: The detection clamp (52) comprises: a first clamping rod (521), a second clamping rod (522) and an instrument clamp (523); One end of the first clamping rod (521) is a spherical structure, one end of the spherical structure serves as a connection end of the detection clamping member (52), a spherical mounting hole matching the shape of the spherical structure is provided on the detection mounting seat (51), one end of the spherical structure of the first clamping rod (521) is rotatably arranged in the spherical mounting hole, and the other end of the first clamping rod (521) is hinged to the movable end of the second clamping rod (522); The installation end of the second clamping rod (522) is provided with an instrument clamp (523) as the clamping end of the detection clamping member (52), and the detection instrument is clamped by the instrument clamp (523).

8. The repair device for the pinion bearing hole of the wind turbine gearbox according to claim 1, characterized in that: The repair device further comprises a dust blower (6) movably arranged on the workbench (21) and used for removing waste chips generated when the repair cutter head processes the pinion bearing hole.

9. The repair device for the pinion bearing hole of the wind turbine gearbox according to claim 8, characterized in that: The repair device further comprises: a support (7) disposed on the workbench (21) and used for supporting the dust blower (6).

10. The repairing device for the pinion bearing hole of the wind turbine gearbox according to claim 9, characterized in that: A receiving hole matching the shape of the dust blower (6) is provided on the support (7), and the dust blower (6) can be embedded in the receiving hole.

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