Radial clearance measuring tool for wind power spherical self-aligning roller bearing

Abstract

The utility model relates to a radial clearance measuring tool for a wind power spherical self-aligning roller bearing. The radial clearance measuring tool comprises a bottom positioning plate, an inner sleeve fulcrum positioning assembly, an outer sleeve fulcrum assembly, a roller supporting table and a measuring meter, a group of outer sleeve fulcrum assemblies are arranged on the upper end surfaces of the two ends of the bottom positioning plate, a group of corresponding inner sleeve fulcrum positioning assemblies are arranged on the bottom positioning plate in the outer sleeve fulcrum assemblies, and the roller supporting table is placed on the bottom positioning plate between the outer sleeve fulcrum assemblies and the inner sleeve fulcrum positioning assemblies; a measuring meter is installed on the outer sleeve fulcrum assembly at one end of the bottom positioning plate. The bearing is horizontally placed on the tool so that the roller can be located on the supporting table. A bearing horizontal measurement mode is adopted, a roller supporting table with an inclined plane angle is designed to support a roller, and then the radial clearance of the bearing is measured in a mode that an inner sleeve is fixed and an outer assembly moves; the structural design is simple, the operation is easy, the radial clearance value of the product measured by the method is accurate, and the service life of the bearing is prolonged.

Description

Technical Field

[0001] The utility model relates to a bearing measuring tool, in particular to a wind power spherical self-aligning roller bearing radial clearance measuring tool and method, belonging to the technical field of bearing detection equipment. Background Art

[0002] Large FD wind turbine spherical roller bearings, spherical roller bearings are a type of rolling bearings, which rely on rolling contact between the main components to support the rotating parts. Double row tapered roller bearings are now mostly standardized, with advantages such as high rotation accuracy and easy selection.

[0003] After traditional FD wind turbine spherical roller bearings are installed, the bearings will have radial clearance. The existing method for measuring radial clearance is to measure the product upright after assembly. Although this method can directly measure the radial clearance, the measurement results will be affected by uncertain factors such as deformation ellipse when the product is upright. Therefore, the measured radial clearance is not the true radial clearance, which affects the service life of the bearing. The shorter the bearing is used, the more frequent the wind turbine damage will be, causing great losses to both the bearing manufacturer and the wind turbine company.

[0004] To address the issue of bearings reaching or exceeding their intended lifespan in wind turbines, the original spherical self-aligning roller bearings were re-measured for radial clearance and lifespan calculation. Measurements were performed by laying the bearings flat. However, this type of spherical self-aligning roller bearing has a curvature structure. When measured flat, the inner and outer sleeves are aligned, and the roller plane also sinks. Consequently, radial clearance measurements at this point will be smaller than the actual value, resulting in inaccurate results. This increases the difficulty of flat measurement. Summary of the Invention

[0005] In view of the technical problem of inaccurate radial clearance measurement caused by the above-mentioned bearing structure, the purpose of the utility model is to provide a tool and method for measuring the radial clearance of a wind power spherical roller bearing. The bearing is placed flat for measurement, and a roller support platform with an inclined angle is designed to support the roller based on the calculated roller sinking value and angle, and the distance value from the inner and outer sleeve planes. The radial clearance of the bearing is then measured by fixing the inner sleeve and moving the outer component.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a wind power spherical self-aligning roller bearing radial clearance measuring tool, comprising: a bottom positioning plate, an inner sleeve fulcrum positioning assembly, an outer sleeve fulcrum assembly, a roller support platform and a measuring table; a group of outer sleeve fulcrum assemblies are provided on the upper end surfaces at both ends of the bottom positioning plate, and a group of corresponding inner sleeve fulcrum positioning assemblies are provided on the bottom positioning plate inside the outer sleeve fulcrum assembly, and the roller support platform is placed on the bottom positioning plate between the outer sleeve fulcrum assembly and the inner sleeve fulcrum positioning assembly; a measuring table is installed on the outer sleeve fulcrum assembly at one end of the bottom positioning plate, the bearing is placed horizontally on the tool so that the roller is located on the support platform, and the lower end surface of the outer sleeve and the lower end surface of the inner sleeve correspond to the outer sleeve fulcrum assembly and the inner sleeve fulcrum positioning assembly respectively;

[0007] Furthermore, the bottom positioning plate is a long strip plate with a slide groove, the slide groove is axially arranged on the long strip plate and extends to the end of the long strip plate; the inner sleeve support point positioning components at both ends of the bottom positioning plate are radially passed through the slide groove by fasteners, and the outer sleeve support point component at one end of the bottom positioning plate is passed through the slide groove by fasteners;

[0008] Furthermore, the outer sleeve fulcrum assembly at the other end of the bottom positioning plate is located outside the slideway groove and is fixed to the bottom positioning plate together with the meter rod connected to the measuring meter;

[0009] Furthermore, the outer sleeve fulcrum assembly and the inner sleeve fulcrum positioning assembly of the bottom positioning plate are both a pair of opposing arc segment pads; the two arc segment pads of the inner sleeve fulcrum positioning assembly slide relative to or toward each other in the slide groove of the bottom positioning plate to support and fix the inner sleeve; the arc segment pad of the outer sleeve fulcrum assembly located in the slide groove of the bottom positioning plate adjusts the distance between the two arc segment pads by moving laterally in the slide groove relative to the arc segment pad of the clamping measuring table to support the outer sleeve;

[0010] Furthermore, the roller support platform is a circular ring structure with an upper sloped surface and a lower horizontal end surface, and is movably placed on the bottom positioning plate, so that the roller support platform can move on the bottom positioning.

[0011] Furthermore, the upper end slope surface of the roller support platform is adapted to the curvature of the roller end surface. The purpose of this design is that the roller and the support platform are in contact with each other and move synchronously as a whole.

[0012] Furthermore, the inner sleeve fulcrum positioning assembly includes: an arc segment pad, a bolt rod, and a bolt cap; the arc segment pad is provided with a bolt through hole, the bolt rod passes through the bolt through hole and is tightened with the bolt cap under the bottom positioning plate to fix the arc segment pad; the portion of the top end of the bolt rod that is higher than the upper end surface of the arc segment pad forms a fulcrum portion;

[0013] The structure of the inner sleeve positioning fulcrum assembly is used to form fulcrums at two positions of the bearing inner sleeve. One is to form support by the side surface of the fulcrum part at the top of the bolt rod contacting the inner diameter of the inner sleeve, and the other is to form support by the upper end of the circular arc segment pad facing the lower end surface of the inner sleeve. The support for the inner diameter of the inner sleeve is achieved by removing the bolt cap at the lower part of the bolt rod and moving the circular arc segment pad in the slide groove of the bottom positioning plate so that the fulcrum part at the top of the bolt rod tensions the inner diameter of the inner sleeve. When the fulcrum part is tensioned to the limit on the inner sleeve, the circular arc segment pad is fixed in position and the bolt cap at the lower part of the bolt rod is tightened.

[0014] Furthermore, the outer sleeve fulcrum assembly with a measuring gauge on one side includes: an arc segment pad and a measuring gauge rod; a thread is provided on the lower portion of the measuring gauge rod, and a threaded hole is provided on the arc segment pad and the bottom positioning plate to match the thread of the measuring gauge rod. The measuring gauge rod passes through the arc segment pad and is fixed to the bottom positioning plate. The measuring gauge is installed on the upper portion of the measuring gauge rod so that the pointer of the measuring gauge faces the outer peripheral surface of the bearing outer sleeve;

[0015] Furthermore, the outer sleeve fulcrum assembly in the direction opposite to the measuring table includes: an arc segment pad, a bolt rod, and a bolt cap; the arc segment pad is provided with a bolt through hole, the bolt rod passes through the bolt through hole and is tightened with the bolt cap under the bottom positioning plate to fix the arc segment pad;

[0016] The outer sleeve fulcrum assembly of this tool supports the lower end surface of the outer sleeve by a circular arc segment pad with one end of the measuring gauge and a circular arc segment pad at the other end; the outer sleeve fulcrum assembly with one end of the measuring gauge is located outside the slide groove of the bottom positioning plate and is fixed to the bottom positioning plate by a bolt rod, while the outer sleeve fulcrum assembly at the other end is located in the area of ​​the slide groove of the bottom positioning plate, so that it can be moved in the slide groove by the bolt rod, and the outer sleeve fulcrum assembly at this end and the bottom positioning plate are movably set; for bearings of different specifications, according to the different diameters of their outer sleeves, they are used by adjusting the position of the circular arc segment pad at this end relative to the bottom positioning plate.

[0017] Furthermore, gaps are set between the roller support platform and the arc segment pads of the inner sleeve fulcrum positioning assembly and the arc segment positioning blocks of the outer sleeve fulcrum assembly that have been adjusted in position, so that the roller support platform can move between the arc segment pads of the inner sleeve fulcrum positioning assembly and the arc segment positioning blocks of the outer sleeve fulcrum assembly, and the amount of the gap is obtained through reasonable calculation of the tooling design.

[0018] Furthermore, the height of the roller support platform is higher than the height of the arc segment pad of the outer sleeve fulcrum assembly and the arc segment pad of the inner sleeve positioning fulcrum assembly. This is to support the roller. The specific height of the roller support platform is reasonably calculated in the tooling design based on factors such as the axial sinking value of the roller; and the upper end surface height of the arc segment pad of the outer sleeve fulcrum assembly is flush with the upper end surface height of the arc segment pad of the inner sleeve positioning fulcrum assembly, so that the bearing can be smoothly displaced.

[0019] Furthermore, a support plate is provided at each end of the bottom positioning plate. During operation, the support plates are placed directly on both sides of the bottom positioning plate and on a horizontal surface to provide auxiliary support for the bearing. The support plates can be removed after the measurement is completed.

[0020] Furthermore, the two support plates have the same height and the upper end surface height of the support plate is kept level with the upper end surface height of the arc segment pad, so that when the bearing moves on the arc segment pad, the bearing displacement accuracy is affected due to the lack of support on both sides of the bottom positioning plate below the bearing or inconsistent support heights, thereby preventing the bearing from tilting and affecting the measurement effect.

[0021] Method for measuring radial clearance of wind turbine spherical roller bearings using the above tooling structure:

[0022] During initial assembly of the fixture, the bearing is placed on the fixture, with the inner sleeve located on the upper end face of the arc segment pad of the inner sleeve pivot positioning assembly, the outer sleeve located on the upper surface of the arc segment pad of the outer sleeve pivot assembly, and the roller supported on the roller support table. Since the outer sleeve is directly placed on the arc segment pad of the outer sleeve pivot assembly, it is always in a free state. The specific measurement process is as follows:

[0023] Bearing inner sleeve fixed

[0024] The inner sleeve is positioned and clamped by adjusting the position of the inner sleeve fulcrum positioning assembly relative to the bottom positioning plate, so that the inner sleeve and the tooling are fixed as one. At this time, the bolt caps at the bottom of the bolt rods (two bolt rods on both sides) of the inner sleeve fulcrum positioning assembly are removed and moved in the slideway groove of the bottom positioning plate through the circular arc segment pads (two), so that the fulcrum part at the top of the bolt rod tensions and supports the inner diameter of the inner sleeve. When the fulcrum part tensions the inner sleeve to the limit, the circular arc segment pad is fixed in position and the bolt caps at the bottom of the bolt rod are tightened, thereby completing the fixation of the inner sleeve.

[0025] Bearing sleeve adjustment

[0026] According to the specific specifications of the jacket, the position of the arc segment pad in the jacket fulcrum assembly with one end of the slide groove is adjusted relative to the bottom positioning plate to ensure that the jacket has sufficient displacement area on the arc segment pad to prevent the jacket from deviating when moving;

[0027] Coat displacement and measurement

[0028] When the inner sleeve and the fixture are fixed together, push the outer ring from one side of the fixture to the other side in the radial direction of the bearing until it reaches the limit position. Since the rollers are supported on the roller support platform, the roller support platform will move with the rollers. At this time, by measuring the outside of the outer sleeve, the pointer of the measuring meter contacts the outer circumference of the outer sleeve. At this time, the measuring meter value is zero.

[0029] When the outer sleeve is pushed to its limit, the inner diameter of the outer sleeve on the pushed side first contacts the roller. As the push continues, the outer ring and roller contact the outer diameter of the inner sleeve. During this process, the inner sleeve is stationary, and the roller support platform below the roller moves, driving the roller to move at the same time. The outer sleeve moves on the arc segment pad. This process essentially causes the outer sleeve and all rollers to be eccentric with the inner sleeve. Before measurement, the circles containing the outer sleeve, rollers, and inner sleeve are concentric.

[0030] When the pointer reading of the above measuring gauge is zero, push the outer sleeve in the opposite direction until it is pushed to the limit position. At this time, the value displayed on the measuring gauge is the radial clearance value measured by the tooling for the bearing.

[0031] The core of this solution is to use a support table to lift the roller, which actually simulates the contact state between the roller and the raceway when the bearing is in use, and then measure the clearance to prevent the clearance value from being small when the roller sinks due to the curved surface of the spherical roller.

[0032] The beneficial effects of adopting the radial clearance measuring tool of the utility model are:

[0033] This solution adopts a bearing flat measurement method. Based on the calculated roller sinking value and angle, the distance from the inner and outer sleeve planes and other factors, a roller support table with an inclined angle is designed to support the roller. The radial clearance of the bearing is measured by fixing the inner sleeve and moving the outer component. The tooling structure is simple in design and easy to operate. The radial clearance value of the product can be accurately measured using this method, thereby increasing the service life of the bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is a structural diagram of the measuring tool of the utility model.

[0035] Figure 2 for Figure 1 Assembly drawing for use.

[0036] Figure 3 This is a schematic diagram of the bearing of the utility model before measurement.

[0037] Figure 4 This is a schematic diagram of the outer sleeve being pushed during the bearing measurement process of the utility model.

[0038] In the figure, 1, bottom positioning plate, 2, roller support platform, 3, measuring table, 4, bearing, 1.1, slideway groove, 5, arc segment pad of inner sleeve fulcrum positioning assembly, 6, bolt rod, 7, bolt cap, 8, fulcrum part, 9, arc segment pad of outer sleeve fulcrum assembly, 10, measuring table rod, 11, support plate. DETAILED DESCRIPTION

[0039] To make the above-mentioned objects, features, and advantages of the present invention more clearly understood, the following detailed description of specific embodiments of the present invention is provided in conjunction with the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0040] like Figure 1 、 2 The radial clearance measuring tool for a wind power spherical self-aligning roller bearing shown in the figure comprises: a bottom positioning plate 1, an inner sleeve fulcrum positioning assembly, an outer sleeve fulcrum assembly, a roller support platform 2 and a measuring gauge 3; a group of outer sleeve fulcrum assemblies are provided on the upper end surfaces at both ends of the bottom positioning plate 1, a group of corresponding inner sleeve fulcrum positioning assemblies are provided on the bottom positioning plate 1 inside the outer sleeve fulcrum assembly, and the roller support platform 2 is placed on the bottom positioning plate 1 between the outer sleeve fulcrum assembly and the inner sleeve fulcrum positioning assembly; a measuring gauge 3 is installed on the outer sleeve fulcrum assembly at one end of the bottom positioning plate 1, and the bearing 4 is placed horizontally on the tool so that the roller is located on the support platform 2, and the lower end surface of the outer sleeve and the lower end surface of the inner sleeve correspond to the outer sleeve fulcrum assembly and the inner sleeve fulcrum positioning assembly respectively;

[0041] The bottom positioning plate 1 is a long strip with a slide groove 1.1, which is axially arranged on the long strip and extends to the end of the long strip; the inner sleeve support point positioning components at both ends of the bottom positioning plate 1 are radially passed through the slide groove 1.1 by fasteners, and the outer sleeve support point component at one end of the bottom positioning plate 1 is passed through the slide groove 1.1 by fasteners;

[0042] The outer sleeve fulcrum assembly at the other end of the bottom positioning plate 1 is located outside the slideway groove 1.1 and is fixed to the bottom positioning plate 1 through the meter rod 10 connected to the measuring meter 3;

[0043] The outer sleeve fulcrum assembly and the inner sleeve fulcrum positioning assembly of the bottom positioning plate 1 are each a pair of opposing arc segment pads; the two arc segment pads 5 of the inner sleeve fulcrum positioning assembly slide relative to or toward each other in the slideway groove 1.1 of the bottom positioning plate 1 to support and fix the inner sleeve; the arc segment pad 9 of the outer sleeve fulcrum assembly, located in the slideway groove 1.1 of the bottom positioning plate 1, is adjusted in distance between the two arc segment pads 9 by moving laterally in the slideway groove 1.1 relative to the arc segment pad 9 of the clamping measuring table 3 to support the outer sleeve;

[0044] The roller support platform 2 is a circular ring structure with a sloped surface at the upper end and a horizontal end surface at the lower end, and is movably placed on the bottom positioning plate 1 so that the roller support platform 2 can move on the bottom positioning plate 1.

[0045] The upper end slope surface of the roller support platform 2 is adapted to the curvature of the roller end surface. The purpose of this design is to enable the roller and the support platform 2 to contact each other and move synchronously as a whole.

[0046] The inner sleeve fulcrum positioning assembly includes: an arc segment spacer 5, a bolt rod 6, and a bolt cap 7; the arc segment spacer 5 is provided with a bolt through hole, the bolt rod 6 passes through the bolt through hole and is tightened with the bolt cap 7 under the bottom positioning plate 1 to fix the arc segment spacer 5; the portion of the top of the bolt rod 6 that is higher than the upper end surface of the arc segment spacer 5 forms a fulcrum portion 8;

[0047] It should be noted that the structure of the inner sleeve positioning fulcrum assembly is used to form fulcrums at two positions of the bearing inner sleeve. One is to form support by the side surface of the fulcrum portion 8 at the top of the bolt rod 6 contacting the inner diameter of the inner sleeve, and the other is to form support by the upper end of the circular arc segment pad 5 facing the lower end surface of the inner sleeve. The support for the inner diameter of the inner sleeve is achieved by removing the bolt cap 7 at the bottom of the bolt rod 6 and then moving the circular arc segment pad 5 in the slideway groove 1.1 of the bottom positioning plate 1, so that the fulcrum portion 8 at the top of the bolt rod 6 is tensioned and supported on the inner diameter of the inner sleeve. When the fulcrum portion 8 is tensioned on the inner sleeve to the limit, the circular arc segment pad 5 is fixed in position and the bolt cap 7 at the bottom of the bolt rod 6 is tightened.

[0048] The outer sleeve fulcrum assembly with the measuring gauge 3 on one side includes: an arc segment pad 9 and a measuring gauge rod 10; the measuring gauge rod 10 is provided with a thread on the lower portion, and the arc segment pad 9 and the bottom positioning plate 1 are provided with a threaded hole that matches the thread of the measuring gauge rod 10. The measuring gauge rod 10 passes through the arc segment pad 9 and is fixed to the bottom positioning plate 1. The measuring gauge 3 is installed on the upper portion of the measuring gauge rod 10 so that the pointer of the measuring gauge 3 faces the outer peripheral surface of the bearing sleeve;

[0049] The outer cover fulcrum assembly opposite to the measuring table 3 includes: an arc segment pad 9, a bolt rod 6, and a bolt cap 7; the arc segment pad 9 is provided with a bolt through hole, the bolt rod 6 passes through the bolt through hole and is tightened with the bolt cap 7 under the bottom positioning plate 1 to fix the arc segment pad 9;

[0050] It should be noted that the outer sleeve fulcrum assembly of the present tool supports the lower end surface of the outer sleeve by means of the circular arc segment pad 9 with one end of the measuring scale 3 and the circular arc segment pad 9 with the other end; the outer sleeve fulcrum assembly with one end of the measuring scale 3 is located outside the slide groove 1.1 of the bottom positioning plate 1 and is fixed to the bottom positioning plate 1 by the bolt rod 6, while the outer sleeve fulcrum assembly at the other end is located in the area of ​​the slide groove 1.1 of the bottom positioning plate 1, so that it can be moved in the slide groove 1.1 by the bolt rod 6, and the outer sleeve fulcrum assembly at this end and the bottom positioning plate 1 are movably arranged; for bearings of different specifications, they are used by adjusting the position of the circular arc segment pad 9 at this end relative to the bottom positioning plate 1 according to the different diameters of their outer sleeves.

[0051] Gaps are set between the roller support platform 2 and the arc segment pad 5 of the inner sleeve fulcrum positioning assembly and the arc segment positioning block 9 of the outer sleeve fulcrum assembly that have been adjusted to facilitate the roller support platform 2 to move between the arc segment pad 5 of the inner sleeve fulcrum positioning assembly and the arc segment positioning block 9 of the outer sleeve fulcrum assembly. The amount of the gap is obtained through reasonable calculation of the tooling design.

[0052] The height of the roller support platform 2 is higher than the height of the arc segment pad 9 of the outer sleeve fulcrum assembly and the arc segment pad 9 of the inner sleeve positioning fulcrum assembly. This is to support the roller. The specific height of the roller support platform 2 is reasonably calculated in the tooling design based on factors such as the axial sinking value of the roller; and the upper end surface height of the arc segment pad 9 of the outer sleeve fulcrum assembly is flush with the upper end surface height of the arc segment pad 5 of the inner sleeve positioning fulcrum assembly, so that the bearing 4 can be smoothly displaced.

[0053] In addition, the tooling is further provided with a support plate 11 at both ends of the bottom positioning plate 1. When working, the support plates 11 are directly placed on both sides of the bottom positioning plate 1 and on a horizontal plane to provide auxiliary support for the bearing 4. They can be removed after the measurement work is completed. The two support plates 11 have the same height and the upper end surface height of the support plate 11 is kept level with the upper end surface height of the arc segment pad (5 and 9). This facilitates the movement of the bearing 4 on the arc segment pad (5 and 9) to prevent the bearing displacement accuracy from being affected due to the lack of support or inconsistent support heights on both sides of the bottom positioning plate 1 below the bearing 4, thereby preventing the bearing from tilting and affecting the measurement effect.

[0054] Method for measuring radial clearance of wind turbine spherical roller bearings using the above tooling structure:

[0055] During initial assembly of the fixture, the bearing 4 is placed on the fixture, with the inner sleeve located on the upper end surface of the arc segment pad 5 of the inner sleeve pivot positioning assembly, and the outer sleeve located on the upper surface of the arc segment pad 9 of the outer sleeve pivot assembly. The roller is supported on the roller support platform 2. Since the outer sleeve is directly placed on the arc segment pad 9 of the outer sleeve pivot assembly, it is always in a free state. The specific measurement process is as follows:

[0056] Bearing inner sleeve fixed

[0057] The inner sleeve is positioned and clamped by adjusting the position of the inner sleeve fulcrum positioning assembly relative to the bottom positioning plate 1, so that the inner sleeve and the tooling are fixed as one. At this time, the bolt caps 7 at the bottom of the bolt rods 6 (two bolt rods on both sides) of the inner sleeve fulcrum positioning assembly are removed and the two circular arc segment spacers 5 are moved in the slideway groove 1.1 of the bottom positioning plate 1, so that the fulcrum part 8 at the top of the bolt rod 6 tensions the inner diameter of the inner sleeve. When the fulcrum part 8 tensions the inner sleeve to the limit, the circular arc segment spacer 5 is fixed in position and the bolt caps 7 at the bottom of the bolt rod 6 are tightened, thereby completing the fixation of the inner sleeve.

[0058] Bearing sleeve adjustment

[0059] According to the specific specifications of the jacket, the position of the arc segment pad 9 in the jacket fulcrum assembly with one end of the slide groove 1.1 is adjusted relative to the bottom positioning plate 1 to ensure that the jacket has sufficient displacement area on the arc segment pad 9 to prevent the jacket from deviating during movement;

[0060] Coat displacement and measurement

[0061] When the inner sleeve and the fixture are fixed together, the outer ring is pushed from one side of the fixture to the other side in the radial direction of the bearing 4 until it reaches the limit position. Since the rollers are supported on the roller support platform 2, the roller support platform 2 moves simultaneously with the roller movement. At this time, by measuring the outside of the outer sleeve, the pointer of the measuring gauge 3 contacts the outer circumference of the outer sleeve. At this time, the value of the measuring gauge 3 is zero.

[0062] When the outer sleeve is pushed to the limit position, the inner diameter of the outer sleeve on the pushed side contacts the roller first, and the push continues until the outer ring and the roller contact the outer diameter of the inner sleeve together. During this process, the inner sleeve is fixed, and the roller support platform 2 under the roller moves while driving the roller to move. The outer sleeve moves on the arc segment pad 9, and the state of the moved bearing 4 is as follows: Figure 4 As shown in the figure, the process is essentially that the outer sleeve and all rollers are eccentric to the inner sleeve. Before the measurement movement, the circles where the outer sleeve, rollers and inner sleeve are located are concentric, as shown in the figure. Figure 3 As shown;

[0063] When the pointer reading of the above-mentioned measuring gauge 3 is zero, push the outer sleeve in the opposite direction until it is pushed to the limit position. At this time, the value displayed on the measuring gauge 3 is the radial clearance value of the bearing measured by the tooling.

[0064] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0065] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0066] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0067] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0068] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

Claims

1. A wind turbine spherical roller bearing radial clearance measurement tool, characterized in that: include: Bottom positioning plate, inner sleeve fulcrum positioning assembly, outer sleeve fulcrum assembly, roller support platform and measuring table; a group of outer sleeve fulcrum assemblies are provided on the upper end surfaces at both ends of the bottom positioning plate, and a group of corresponding inner sleeve fulcrum positioning assemblies are provided on the bottom positioning plate inside the outer sleeve fulcrum assembly, and the roller support platform is placed on the bottom positioning plate between the outer sleeve fulcrum assembly and the inner sleeve fulcrum positioning assembly; a measuring table is installed on the outer sleeve fulcrum assembly at one end of the bottom positioning plate, and the bearing is placed horizontally on the tooling so that the roller is located on the support platform, and the lower end surface of the outer sleeve and the lower end surface of the inner sleeve correspond to the outer sleeve fulcrum assembly and the inner sleeve fulcrum positioning assembly respectively.

2. The radial clearance measuring tool for wind turbine spherical roller bearings according to claim 1 is characterized by: The bottom positioning plate is a long strip plate with a slide groove, which is axially arranged on the long strip plate and extends to the end of the long strip plate; the inner sleeve fulcrum positioning components at both ends of the bottom positioning plate are radially passed through the slide groove by fasteners, and the outer sleeve fulcrum component at one end of the bottom positioning plate is passed through the slide groove by fasteners; the outer sleeve fulcrum component at the other end of the bottom positioning plate is located outside the slide groove and is fixed to the bottom positioning plate together by connecting the meter rod of the measuring meter.

3. The radial clearance measuring tool for wind turbine spherical roller bearings according to claim 1 is characterized by: The outer sleeve fulcrum assembly and the inner sleeve fulcrum positioning assembly on the bottom positioning plate are both a pair of opposite arc segment pads.

4. The radial clearance measuring tool for wind turbine spherical roller bearings according to claim 1 is characterized by: The roller support platform is a circular ring structure with an upper slope surface and a lower horizontal end surface, and is movably placed on the bottom positioning plate so that the roller support platform can move on the bottom positioning; the upper slope surface of the roller support platform is adapted to the curvature of the roller end surface.

5. The radial clearance measuring tool for wind turbine spherical roller bearings according to claim 3 is characterized by: The inner sleeve fulcrum positioning assembly includes: an arc segment pad, a bolt rod, and a bolt cap; a bolt through hole is provided on the arc segment pad, the bolt rod passes through the bolt through hole and is tightened with the bolt cap under the bottom positioning plate to fix the arc segment pad; the part of the top end of the bolt rod that is higher than the upper end surface of the arc segment pad forms a fulcrum portion.

6. The radial clearance measuring tool for wind turbine spherical roller bearings according to claim 2, characterized in that: The outer sleeve fulcrum assembly with the measuring gauge on one side includes: an arc segment pad and a measuring gauge rod; a thread is set on the lower part of the measuring gauge rod, and the arc segment pad and the bottom positioning plate are provided with threaded holes that match the thread of the measuring gauge rod. The measuring gauge rod passes through the arc segment pad and is fixed to the bottom positioning plate. The measuring gauge is installed on the upper part of the measuring gauge rod so that the measuring gauge pointer points to the outer circumferential surface of the bearing outer sleeve; the outer sleeve fulcrum assembly in the direction opposite to the measuring gauge includes: an arc segment pad, a bolt rod, and a bolt cap; a bolt through hole is set on the arc segment pad, the bolt rod passes through the bolt through hole and is tightened with the bolt cap under the bottom positioning plate to fix the arc segment pad.

7. The radial clearance measuring tool for wind turbine spherical roller bearings according to claim 3, characterized in that: Gaps are set between the roller support platform and the arc segment pad of the inner sleeve fulcrum positioning assembly and the arc segment positioning block of the outer sleeve fulcrum assembly that have been adjusted in position.

8. The radial clearance measuring tool for wind turbine spherical roller bearings according to claim 7, characterized in that: The height of the roller support platform is higher than the arc segment pad of the outer sleeve fulcrum assembly and the arc segment pad of the inner sleeve positioning fulcrum assembly, and the upper end surface height of the arc segment pad of the outer sleeve fulcrum assembly is flush with the upper end surface height of the arc segment pad of the inner sleeve positioning fulcrum assembly.

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