Tool and method for measuring radial clearance of wind power spherical self-aligning roller bearing

Abstract

The invention relates to a tool and method for measuring the radial clearance of a wind power spherical self-aligning roller bearing. The 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 invention relates to a bearing measuring tool, in particular to a wind power spherical self-aligning roller bearing radial clearance measuring tool and method, and belongs 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 high rotation accuracy and easy selection.

[0003] After the traditional FD wind power 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 product will be deformed ellipse and other uncertain factors affect the measurement results when it is upright. Therefore, the measured radial clearance is not the real 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] In order to solve the problem that the bearing has reached or even exceeded the predetermined period of use in the fan, the radial clearance measurement and service life calculation of the original spherical self-aligning bearing are improved and measured by laying the bearing flat. However, the structure of this spherical self-aligning roller bearing has a curvature. When measuring flat, the inner sleeve plane and the outer sleeve plane are on the same plane, and the roller plane also sinks. If the radial clearance is measured at this time, the clearance will be smaller than the actual value and inaccurate, which 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 present invention is to provide a radial clearance measurement tool and method for wind power spherical roller bearings. The bearing is placed flat for measurement, and a roller support platform with an inclined angle is designed to support the roller according to 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 scheme adopted by the present invention is: a radial clearance measuring tool for a wind power spherical roller bearing, 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 arranged on the upper end surfaces at both ends of the bottom positioning plate, and a group of corresponding inner sleeve fulcrum positioning assemblies are arranged 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; Furthermore, the bottom positioning plate is a long strip plate with a slideway 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 slideway groove by fasteners, and the outer sleeve fulcrum component at one end of the bottom positioning plate is passed through the slideway groove by fasteners; 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 table rod connected to the measuring table; Furthermore, the outer sleeve fulcrum assembly and the inner sleeve fulcrum positioning assembly of the bottom positioning plate are both a pair of opposite circular arc segment pads; the two circular arc segment pads of the inner sleeve fulcrum positioning assembly slide relative to or toward each other in the slideway groove of the bottom positioning plate to support and fix the inner sleeve; the circular arc segment pad located in the slideway groove of the bottom positioning plate in the outer sleeve fulcrum assembly is adjusted to a distance between the two circular arc segment pads by moving laterally in the slideway groove relative to the circular arc segment pad of the clamping measuring table to support the outer sleeve; Furthermore, 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 plate.

[0007] 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.

[0008] Furthermore, the inner sleeve fulcrum positioning assembly comprises: 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 higher than the upper end surface of the arc segment pad forms a fulcrum; The structure of the inner sleeve positioning fulcrum assembly is used to form fulcrums at two positions of the inner sleeve of the bearing. 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 support the lower end surface of the inner sleeve by the upper end of the circular arc segment pad. The inner diameter of the inner sleeve needs to be supported by removing the bolt cap at the bottom of the bolt rod and then moving the circular arc segment pad in the slideway groove of the bottom positioning plate, so that the fulcrum part at the top of the bolt rod can tension and support 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 and the bolt cap at the bottom of the bolt rod is tightened. 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 arranged at the lower part of the measuring gauge rod, and a threaded hole matching the thread of the measuring gauge rod is provided in the arc segment pad and the bottom positioning plate, the measuring gauge rod passes through the arc segment pad and is fixed to the bottom positioning plate, and a measuring gauge is installed on the upper part of the measuring gauge rod so that the pointer of the measuring gauge faces the outer peripheral surface of the bearing outer sleeve; 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; The outer sleeve fulcrum assembly of the tooling supports the lower end surface of the outer sleeve by means of a circular arc segment pad with one end of a measuring gauge and a circular arc segment pad with the other end; the outer sleeve fulcrum assembly with one end of the measuring gauge is located outside the slideway 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 slideway groove of the bottom positioning plate, so that it can be moved in the slideway groove by means of the bolt rod, and the outer sleeve fulcrum assembly at this end and the bottom positioning plate are movably arranged; for bearings of different specifications, the position of the circular arc segment pad at this end relative to the bottom positioning plate is adjusted for use according to the different diameters of their outer sleeves.

[0009] Furthermore, 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, so that the roller support platform can move between the arc segment pad of the inner sleeve fulcrum positioning assembly and the arc segment positioning block of the outer sleeve fulcrum assembly, and the amount of the gap is obtained through reasonable calculation of the tooling design.

[0010] 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.

[0011] Furthermore, a support plate is disposed at each end of the bottom positioning plate. When working, the support plate is directly placed on both sides of the bottom positioning plate and placed on a horizontal plane to assist in supporting the bearing. The support plate can be removed after the measurement is completed. Furthermore, the heights of the two support plates are the same and the height of the upper end surfaces of the support plates is kept level with the height of the upper end surfaces of the arc segment pads, so that when the bearing moves on the arc segment pads, the bearing displacement accuracy is affected due to the lack of support on both sides of the bottom positioning plate under the bearing or the inconsistent support heights, thereby preventing the bearing from tilting and affecting the measurement effect.

[0012] The radial clearance measurement method of wind turbine spherical roller bearings using the above tooling structure: At the beginning of the tooling assembly, the bearing is placed on the tooling, the inner sleeve is located on the upper end surface of the arc segment pad of the inner sleeve pivot positioning assembly, the outer sleeve is located on the upper surface of the arc segment pad of the outer sleeve pivot assembly, and the roller is 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: Bearing inner sleeve fixed 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, after removing the bolt cap at the bottom of the bolt rod (two bolt rods on both sides) of the inner sleeve fulcrum positioning assembly, move it in the slideway groove of the bottom positioning plate through the circular arc segment pad (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 cap at the bottom of the bolt rod is tightened, thereby completing the fixation of the inner sleeve; Bearing sleeve adjustment According to the specific specifications of the outer jacket, the position of the arc segment pad in the outer jacket fulcrum assembly with one end of the slideway groove is adjusted relative to the bottom positioning plate to ensure that the outer jacket has sufficient displacement area on the arc segment pad to prevent the outer jacket from deviating when moving; Coat displacement and measurement When the inner sleeve and the tooling are fixed to form a whole, push the outer ring from one side of the tooling to the other side in the radial direction of the bearing until it reaches the limit position. Since the roller is supported on the roller support platform, the roller support platform will move with the roller. At this time, by measuring the outside of the outer sleeve, the pointer of the measuring meter contacts the outer peripheral surface of the outer sleeve. At this time, the value of the measuring meter is actually zero. 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 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 under the roller moves, driving the roller to move at the same time, and the outer sleeve moves on the arc segment pad. In essence, the outer sleeve and all the rollers are eccentric to the inner sleeve. Before the measurement, the circle where the outer sleeve, roller and inner sleeve are located is concentric. When the pointer reading of the above-mentioned 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.

[0013] 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 measures the clearance to prevent the clearance value from being small when the roller is sunk due to the curved surface of the spherical roller.

[0014] The beneficial effects of adopting the radial clearance measuring tool of the present invention are: This solution adopts the method of measuring the bearing in a flat position. According to the calculated roller sinking value and angle, the distance value from the inner and outer sleeve planes and other factors, a roller support table with an inclined angle is designed to support the roller, and then 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 by this method, thereby increasing the service life of the bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of the measuring tool of the present invention.

[0016] Figure 2 for Figure 1 Use assembly diagram.

[0017] Figure 3 This is a schematic diagram of the bearing state before measurement of the present invention.

[0018] Figure 4 It is a schematic diagram of the state where the outer sleeve is pushed during the bearing measurement process of the present invention.

[0019] In the figure, 1, bottom positioning plate, 2, roller support table, 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

[0020] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0021] like Figure 1 , 2 The radial clearance measuring tool for 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 arranged on the upper end surfaces at both ends of the bottom positioning plate 1, a group of corresponding inner sleeve fulcrum positioning assemblies are arranged 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; The bottom positioning plate 1 is a long strip plate with a slideway groove 1.1, 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 1 are radially passed through the slideway groove 1.1 by fasteners, and the outer sleeve fulcrum component at one end of the bottom positioning plate 1 is passed through the slideway groove 1.1 by fasteners; 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 together with the table rod 10 connected to the measuring table 3; The outer sleeve fulcrum assembly and the inner sleeve fulcrum positioning assembly of the bottom positioning plate 1 are both a pair of opposite circular arc segment pads; the two circular 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 circular arc segment pad 9 in the outer sleeve fulcrum assembly located in the slideway groove 1.1 of the bottom positioning plate 1 is adjusted by moving laterally in the slideway groove 1.1 relative to the circular arc segment pad 9 of the clamping measuring table 3 to adjust the distance between the two circular arc segment pads 9 to support the outer sleeve; 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.

[0022] 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 that the roller and the support platform 2 are in contact with each other and move synchronously as a whole.

[0023] The inner sleeve fulcrum positioning assembly comprises: an arc segment pad 5, a bolt rod 6, and a bolt cap 7; the arc segment pad 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 pad 5; the portion of the top of the bolt rod 6 that is higher than the upper end surface of the arc segment pad 5 forms a fulcrum portion 8; It should be noted that the structure of the inner sleeve positioning fulcrum assembly is used to form fulcrums at two positions of the inner sleeve of the bearing. One is to form support through the side of the fulcrum part 8 at the top of the bolt rod 6 contacting with the inner diameter of the inner sleeve, and the other is to support the lower end surface of the inner sleeve through the upper end of the circular arc segment pad 5; the inner diameter of the inner sleeve is supported 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 part 8 at the top of the bolt rod 6 is tensioned to support the inner diameter of the inner sleeve; when the fulcrum part 8 is tensioned to the limit on the inner sleeve, the circular arc segment pad 5 is fixed and the bolt cap 7 at the bottom of the bolt rod 6 is tightened; The outer sleeve fulcrum assembly with one side of the measuring gauge 3 includes: an arc segment pad 9 and a measuring gauge rod 10; a thread is arranged at the lower part of the measuring gauge rod 10, and a threaded hole matching the thread of the measuring gauge rod 10 is opened on the arc segment pad 9 and the bottom positioning plate 1, and the measuring gauge rod 10 passes through the arc segment pad 9 and is fixed to the bottom positioning plate 1, and the measuring gauge 3 is installed on the upper part of the measuring gauge rod 10 so that the pointer of the measuring gauge 3 faces the outer peripheral surface of the bearing sleeve; The outer sleeve fulcrum assembly in the direction 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; 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 an arc segment pad 9 with one end of the measuring gauge 3 and an arc segment pad 9 with the other end; the outer sleeve fulcrum assembly with one end of the measuring gauge 3 is located outside the slideway groove 1.1 of the bottom positioning plate 1 and is fixed to the bottom positioning plate 1 by means of a bolt rod 6, while the outer sleeve fulcrum assembly at the other end is located in the area of ​​the slideway groove 1.1 of the bottom positioning plate 1, so that it can be moved in the slideway groove 1.1 by means of the bolt rod 6, and the outer sleeve fulcrum assembly at this end is movably arranged with the bottom positioning plate 1; for bearings of different specifications, the position of the arc segment pad 9 at this end relative to the bottom positioning plate 1 is adjusted for use according to the different diameters of their outer sleeves.

[0024] 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, and the amount of the gap is obtained through reasonable calculation of the tooling design.

[0025] The height of the roller support platform 2 is higher than 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.

[0026] In addition, the tooling is also 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 placed on a horizontal plane to assist in supporting the bearing 4. They can be removed after the measurement 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 on both sides of the bottom positioning plate 1 below the bearing 4 or the inconsistent support heights, thereby preventing the bearing from tilting and affecting the measurement effect.

[0027] The radial clearance measurement method of wind turbine spherical roller bearings using the above tooling structure: At the beginning of the tooling assembly, the bearing 4 is placed on the tooling, the inner sleeve is located on the upper end surface of the arc segment pad 5 of the inner sleeve pivot positioning assembly, the outer sleeve is located on the upper surface of the arc segment pad 9 of the outer sleeve pivot assembly, and the roller is supported on the roller support table 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: Bearing inner sleeve fixed The inner sleeve is positioned and clamped by adjusting the position of the inner sleeve pivot positioning assembly relative to the bottom positioning plate 1, so that the inner sleeve and the tooling are fixed as one; at this time, after removing the bolt cap 7 at the lower part of the bolt rod 6 (two bolt rods on both sides) of the inner sleeve pivot positioning assembly, the bolt cap 7 is moved in the slideway groove 1.1 of the bottom positioning plate 1 through the circular arc segment pad 5 (two), so that the pivot part 8 at the top of the bolt rod 6 tensions and supports the inner diameter of the inner sleeve; when the pivot part 8 tensions the inner sleeve to the limit, the circular arc segment pad 5 is fixed in position and the bolt cap 7 at the lower part of the bolt rod 6 is tightened, so as to complete the fixing of the inner sleeve; Bearing sleeve adjustment According to the specific specifications of the jacket, the position of the arc segment pad 9 in the jacket fulcrum assembly having one end of the slideway groove 1.1 is adjusted relative to the bottom positioning plate 1 to ensure that the jacket has enough displacement area on the arc segment pad 9 to prevent the jacket from deviating when moving; Coat displacement and measurement When the inner sleeve and the tooling are fixed to form an integral whole, the outer ring is pushed from one side of the tooling to the other side in the radial direction of the bearing 4 until it reaches the limit position. Since the roller is supported on the roller support platform 2, the roller support platform 2 will move simultaneously with the movement of the roller. At this time, by measuring the outside of the outer sleeve, the pointer of the measuring gauge 3 contacts the outer peripheral surface of the outer sleeve. At this time, the value of the measuring gauge 3 is actually zero. 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 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 and drives the roller to move at the same time. 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 outer sleeve and all rollers are eccentric to the inner sleeve. Before the measurement, the outer sleeve, rollers and inner sleeve are concentric. Figure 3 As shown; When the pointer reading of the above-mentioned measuring gauge 3 is zero, the outer sleeve is pushed in the reverse 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 measured by the tooling for the bearing.

Claims

1. Wind power spherical roller bearing radial clearance measurement tool, characterized by: include: 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 arranged on the upper end surfaces at both ends of the bottom positioning plate, a group of corresponding inner sleeve fulcrum positioning assemblies are arranged 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 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 radially pass through the slide groove through fasteners, and the outer sleeve fulcrum component at one end of the bottom positioning plate passes through the slide groove through 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 circular arc segment cushion blocks.

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 power 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; 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 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 part.

6. The radial clearance measuring tool for wind turbine spherical roller bearings according to claim 2 is characterized by: The outer sleeve fulcrum component with a 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 matching 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 pointer of the measuring gauge faces the outer circumferential surface of the bearing outer sleeve; the outer sleeve fulcrum component 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, and 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 is characterized by: Gaps are set respectively between the roller support platform and the circular arc segment cushion block of the inner sleeve fulcrum positioning assembly and the circular arc segment positioning block of the outer sleeve fulcrum assembly whose positions have been adjusted.

8. The radial clearance measuring tool for wind turbine spherical roller bearings according to claim 7 is characterized by: 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.

9. The radial clearance measuring tool for wind turbine spherical roller bearings according to claim 1 is characterized by: A supporting plate is respectively arranged at both ends of the bottom positioning plate. When working, the supporting plates are directly placed on both sides of the bottom positioning plate and on a horizontal plane.

10. The method for measuring radial clearance of a wind power spherical roller bearing according to any one of claims 1 to 9 is characterized in that: At the beginning of the tooling assembly, the bearing is placed on the tooling, the inner sleeve is located on the upper end surface of the arc segment pad of the inner sleeve pivot positioning assembly, the outer sleeve is located on the upper surface of the arc segment pad of the outer sleeve pivot assembly, and the roller is 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: Bearing inner sleeve fixed 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 a whole; at this time, after removing the bolt cap at the lower part of the bolt rod of the inner sleeve fulcrum positioning assembly, the bolt cap is moved in the slideway groove of the bottom positioning plate through the circular arc segment pad, 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 cap at the lower part of the bolt rod is tightened, thereby completing the fixation of the inner sleeve; Bearing sleeve adjustment According to the specific specifications of the outer jacket, the position of the arc segment pad in the outer jacket fulcrum assembly with one end of the slideway groove is adjusted relative to the bottom positioning plate to ensure that the outer jacket has sufficient displacement area on the arc segment pad to prevent the outer jacket from deviating when moving; Coat displacement and measurement When the inner sleeve and the tooling are fixed to form a whole, push the outer ring from one side of the tooling to the other side in the radial direction of the bearing until it reaches the limit position. Since the roller is supported on the roller support platform, the roller support platform will move with the roller. At this time, by measuring the outside of the outer sleeve, the pointer of the measuring meter contacts the outer peripheral surface of the outer sleeve. At this time, the value of the measuring meter is actually zero. 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 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 under the roller moves, driving the roller to move at the same time, and the outer sleeve moves on the arc segment pad. In essence, the outer sleeve and all the rollers are eccentric to the inner sleeve. Before the measurement, the circle where the outer sleeve, roller and inner sleeve are located is concentric. When the pointer reading of the above-mentioned 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.

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