Auxiliary inspection tool for long-shaft parts of wind power gear box
By designing auxiliary inspection tooling for long shaft parts for wind power gear boxes, the stability and safety problems of long shaft gear parts in magnetic powder detection process are solved, and efficient detection results are achieved.
Patent Information
- Application Number
- CN202421281140.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-06
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-06-06
AI Technical Summary
In the prior art, long shaft parts of wind power gear boxes have problems such as poor stability, low safety and low efficiency during magnetic powder detection. In particular, long shaft gear parts are prone to fall when rotated, which affects the detection effect.
Design an auxiliary inspection tool for long shaft parts of wind power gear boxes. By installing tooling modules and bearings on the tooling base, ensure that the long shaft gear parts are placed horizontally and rotate stably, and fixing them with bearings and bolts to achieve stable turnover and comprehensive inspection of the parts.
It improves the stability and safety of magnetic powder flaw detection for long-axis parts, simplifies the operating process, improves detection efficiency, and reduces safety hazards.
Smart Images
Figure CN223139474U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a tooling field, in particular to an auxiliary inspection tooling for long shaft parts of a wind power gearbox. Background Art
[0002] Due to the advantages of pollution-free and low construction cost, wind power generation has developed rapidly in recent years. The longer the wind power gearbox operates, the higher the probability of the gearbox failing. Once the gearbox fails, engineers need to repair the gearbox. Some faults can be directly repaired on the nacelle of the wind turbine. For relatively serious faults, such as damage to the bearings of the internal components of the box body and broken teeth of the internal gear components of the box body, they cannot be repaired on the nacelle of the wind turbine. The gearbox needs to be lifted down and sent to the gearbox repair manufacturer for repair.
[0003] After the wind power gearbox is sent back to the gearbox repair manufacturer, professional disassembly technicians will disassemble the gearbox, and after all the gear components, structural components, planetary carriers, bearings, box bodies and other parts in the box body are completely disassembled, all the parts will be inspected one by one. As a relatively important part in the gearbox, the inspection process of the gear component is also relatively complex. For gears with relatively serious damage, such as visible defects like broken teeth and tooth surface spalling, treatment opinions can be directly given. However, some defects cannot be inspected by the naked eye, such as cracks on the tooth surface that are invisible to the naked eye, and can only be detected by professional magnetic particle testing equipment. Therefore, for the gearbox that needs to be repaired, all the gear components inside the box body need to be subjected to magnetic particle testing to detect whether there are cracks on the tooth surface. After the magnetic particle testing is qualified, the gear components can be re-ground and repaired or directly retained for use. If cracks are found on the tooth surface during the magnetic particle testing process, the gear cannot be used continuously and will be scrapped. Therefore, magnetic particle testing is a very crucial inspection process, and the efficiency and safety of magnetic particle testing are also of great importance.
[0004] The technical solution of the prior art one is as follows:
[0005] Generally, before the gear component undergoes magnetic particle flaw detection, the gear component to be flaw detected needs to be placed on a workbench. The workbench is a horizontal circular workbench and can rotate. After the part is placed on the workbench, the magnetic particle flaw detection personnel rotate the workbench to perform flaw detection on the part. This kind of workbench is suitable for disc-shaped gears. The disc-shaped gears have a large contact area with the workbench and there will be no safety hazards. For the long shaft type gear components inside the gearbox, such as the high-speed shaft, sun gear and other long shaft type gears, if they are vertically placed on the workbench, since the contact area between the end face of the shaft diameter of the long shaft type gear and the flaw detection workbench is not large, and the long shaft type parts are relatively long, there is a possibility that the long shaft type gear components will fall over easily when the workbench rotates, thus there are certain safety hazards.
[0006] The technical solution of the second prior art is as follows:
[0007] The long-axis type gear is placed horizontally on the magnetic particle flaw detection workbench. Since the current flaw detection workbench rotates circumferentially, the flaw detection personnel can only inspect the places where the long-axis type gear part does not contact the workbench. The places in contact with the workbench need to be re-lifted and turned over before they can be detected, which will greatly affect the efficiency of the magnetic particle flaw detection of the parts. Utility Model Content
[0008] The present utility model provides an auxiliary inspection tooling for long-axis type parts of a wind power gearbox, aiming to solve the shortcomings of the prior art and improve the stability, safety and efficiency of the magnetic particle flaw detection of long-axis type parts of a wind power gearbox.
[0009] The technical solution adopted by the present utility model to solve its technical problems is as follows:
[0010] An auxiliary inspection tooling for long-axis type parts of a wind power gearbox, characterized in that:
[0011] A tooling module is respectively installed at the front and rear parts of the tooling base, and the structure of the tooling module is as follows:
[0012] Two side plates are fixed on the front and rear sides of the bottom plate, and the bottom plate is fixed on the tooling base;
[0013] Two side plates are respectively provided with two through holes distributed left and right, and the through hole positions of the two side plates correspond to form a pair of left through holes and a pair of right through holes;
[0014] A bearing is respectively installed between a pair of left through holes and between a pair of right through holes, and the installation structure is as follows:
[0015] The threaded part of the bolt passes through a pair of through holes and the bearing inner hole of the bearing located between the pair of through holes, and a round nut is installed on the threaded part of the bolt;
[0016] The long-axis type gear part is erected on the bearings of the two tooling modules, the two tooling modules are respectively distributed on both sides of the long-axis gear part, and the shaft diameters on both sides of the long-axis type gear part are respectively in contact with the bearings on the two tooling modules.
[0017] There is a rectangular notch above the side plate, and the through holes opened on the side plate are located on both sides of the rectangular notch,
[0018] The two bearings on each side plate are symmetrically distributed left and right with respect to the center line of the side plate on the side plate.
[0019] Through holes are symmetrically distributed on the upper surface of the bottom plate relative to the side plates. After the screws pass through the through holes on the upper surface of the bottom plate, they are screwed into the threaded holes of the tooling base to fix the bottom plate on the tooling base.
[0020] The advantages of the present utility model are as follows:
[0021] 1) The long-axis type gears are directly placed horizontally on the tooling of the present utility model, so that the parts are placed more stably and the safety is greatly improved.
[0022] 2) The tooling has a low manufacturing cost, and the operation of placing and fixing long-axis parts is simple and efficient.
[0023] 3) Through the tooling of the present utility model, the parts can be directly turned over without re-lifting the parts for inspection after turning over, which improves the efficiency of magnetic particle inspection of the parts. Description of the Drawings
[0024] The present utility model will be further described below in conjunction with the drawings and embodiments.
[0025] Figure 1 is a schematic structural diagram of the long-axis type parts after being placed on this tooling;
[0026] Figure 2 is Figure 1 a partial view in the direction A of
[0027] Figure 3 is Figure 1 a partial sectional view in the direction B-B of Detailed Embodiment
[0028] In order to more clearly illustrate the technical solution of the present utility model, the drawings required to be used in the description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other embodiments can be obtained based on these drawings without creative efforts. In order to facilitate the understanding of the present utility model, the present utility model will be described in more detail below in conjunction with the drawings and specific embodiments.
[0029] It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element, or there can be one or more intermediate elements therebetween. When an element is described as "connected to" another element, it can be directly connected to the other element, or there can be one or more intermediate elements therebetween. The orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "bottom", etc. used in this specification is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation on the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.
[0030] As Figure 1 , Figure 2 , Figure 3 shown:
[0031] A tooling module is installed at the front and rear parts of the integral tooling base 2 respectively. The structure of the tooling module is as follows:
[0032] The side plates 3 and 4 are flat plates with a certain thickness, and their shapes, sizes, thicknesses, etc. are the same. The bottom plate 5 is a rectangular flat plate with a certain thickness. The side plates 3 and 4 are respectively fixed to the front and rear sides of the bottom plate 5 by welding.
[0033] Two through holes with the same specifications are pre-opened on the bottom plate 5, and the two through holes are symmetrically distributed left and right on the bottom plate 5 relative to the side plate 3 (and also relative to the side plate 4). Threaded holes are pre-machined on the upper surface of the integral tooling base 2, and the positions of the threaded holes are determined according to the through holes pre-machined on the bottom plate 5. After passing the screws 6 through the through holes on the bottom plate 5, they are screwed onto the threaded holes pre-machined on the upper surface of the integral tooling base 2, and the bottom plate 5 and the integral tooling base 2 are firmly fixed by tightening the left and right screws 6.
[0034] Two through holes distributed left and right are pre-opened on the upper surface of the side plate 3, and two through holes distributed left and right are also pre-opened on the upper surface of the side plate 4. The positions of the through holes on the side plates 3 and 4 correspond to form a pair of through holes on the left side and a pair of through holes on the right side.
[0035] Pass the threaded part of the bolt 7 through the left through-hole on the side plate 3, then through the inner bearing hole of the bearing 8, and finally through the corresponding left through-hole on the side plate 3. Finally, install the round nut 9 onto the threaded part of the bolt 7. By tightening the round nut 9, install the bearing 8 at the position between the side plate 3 and the side plate 4, located between a pair of left through-holes. Pass the threaded part of the bolt 7 through the right through-hole on the side plate 3, then through the inner bearing hole of the bearing 8, and finally through the corresponding right through-hole on the side plate 3. Finally, install the round nut 9 onto the threaded part of the bolt 7. By tightening the round nut 9, install the bearing 8 at the position between the side plate 3 and the side plate 4, located between a pair of right through-holes. The models and specifications of these two bearings are the same.
[0036] The long-shaft gear part 1 is mounted on the bearings 8 of the two tooling modules. The two tooling modules are respectively distributed on both sides of the long-shaft gear part 1, and the shaft diameters on both sides of the long-shaft gear part 1 are respectively in contact with the bearings 8 on the two tooling modules.
[0037] There is a rectangular notch 31 above the side plate 3. Leaving a rectangular notch 31 is mainly to avoid interference with the shaft diameter of the long-shaft gear part 1 in terms of position. The through-holes opened on the side plate 3 are located on both sides of the rectangular notch 31. The two bearings 8 are symmetrically distributed left and right with respect to the midline of the side plate 3 on the side plate 3, and there is a certain distance between the two bearings 8, so that it can be applicable to long-shaft gear parts 1 with shaft diameter sizes within a certain range.
[0038] During actual use:
[0039] After placing the long-shaft gear part 1 on the two tooling modules, the shaft diameter is in contact with the outer circle of the bearing 8. By turning the gear on the long-shaft gear part 1 with a circumferential steering wheel, the long-shaft gear part 1 rotates under the action of the bearing 8, so that the tooth surfaces of the entire circle of the long-shaft gear part 1 can be inspected.
[0040] The advantages of the tooling of the present utility model are:
[0041] 1: The structure is simple and easy to process and manufacture;
[0042] 2: It has stronger versatility and can be applicable to the inspection work of long-shaft parts within a certain shaft diameter size range;
[0043] 3: The operation is simple. There is no need to turn the part over again. Only by turning it can all situations of the entire gear be inspected;
[0044] 4: Through this tooling, long-shaft parts can be inspected in a lying-down manner, which is more stable and effectively reduces potential safety hazards.
[0045] The various embodiments in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. For the same or similar parts among the various embodiments, reference can be made to each other. The above description of the disclosed embodiments enables those skilled in the art to implement or use the present utility model. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present utility model. Therefore, the present utility model will not be limited to these embodiments shown herein, but rather will conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. An auxiliary inspection tooling for long shaft parts of a wind power gearbox, characterized in that: Install a tooling module at the front and rear of the tooling base respectively. The structure of the tooling module is as follows: Two side plates are fixed on the front and rear sides of the bottom plate, and the bottom plate is fixed on the tooling base; Two through holes are respectively provided in the two side plates and are distributed left and right. The through hole positions of the two side plates correspond to form a pair of left through holes and a pair of right through holes; A bearing is installed between the pair of left through holes and between the pair of right through holes respectively. The installation structure is: The threaded part of the bolt passes through a pair of through holes and the bearing inner hole of the bearing located between the pair of through holes, and the round nut is installed on the threaded part of the bolt; The long shaft type gear part is erected on the bearings of the two tooling modules. The two tooling modules are respectively distributed on both sides of the long shaft gear part, and the shaft diameters on both sides of the long shaft type gear part are respectively in contact with the bearings on the two tooling modules.
2. The auxiliary inspection tooling for long shaft parts of a wind power gearbox according to claim 1, characterized in that: There is a rectangular notch above the side plate, and the through holes provided in the side plate are located on both sides of the rectangular notch.
3. The auxiliary inspection tooling for long shaft parts of a wind power gearbox according to claim 1, wherein: The two bearings on each side plate are symmetrically distributed left and right relative to the midline of the side plate on the side plate.
4. The auxiliary inspection tooling for long shaft parts of a wind power gearbox according to claim 1, wherein: Through holes are symmetrically distributed left and right relative to the side plate on the upper surface of the bottom plate. After the screw passes through the through hole on the upper surface of the bottom plate, it is screwed into the threaded hole of the tooling base to fix the bottom plate on the tooling base.