A wind turbine rotating shaft size rapid inspection positioning tool

Abstract

The utility model relates to a kind of wind-driven generator rotating shaft size rapid inspection positioning tool, it includes workbench, and detachable installation is carried out on workbench by fixed component and has inspection plate, the top surface of inspection plate is provided with locating groove, and the outer periphery of locating groove and shaft body is matched;Two ends of inspection plate are provided with first locating plate and second locating plate respectively, the sidewall of first locating plate and inspection plate is connected by first connecting block lifting, and the sidewall of second locating plate and inspection plate is connected by second connecting block lifting, first locating hole is opened in first locating plate, second locating hole is opened in second locating plate, and first locating hole and second locating hole are coaxially arranged;Multiple contact sensors are embedded in the inner bottom wall of locating groove, and multiple contact sensors are respectively arranged at the key position to be inspected.The present application has the effect of convenient operation, realizes rapid inspection, and improves the inspection efficiency.

Description

Technical Field

[0001] This utility model relates to the field of positioning fixtures, and in particular to a positioning fixture for rapid inspection of the dimensions of a wind turbine shaft. Background Technology

[0002] As wind power generators develop towards higher power density and larger power, the size of the generator shaft is crucial to the performance of the generator.

[0003] The generator shaft needs to be measured to ensure that the length of each axial section is up to standard and the diameter of each radial section is up to standard. The traditional measurement method involves manually holding the shaft and measuring the length and diameter of key parts of the shaft with a ruler, which is not only inconvenient to operate but also inefficient. Utility Model Content

[0004] To address the aforementioned technical issues, this application provides a rapid inspection and positioning fixture for the dimensions of a wind turbine shaft.

[0005] The technical solution provided in this application for a rapid inspection and positioning fixture for the dimensions of a wind turbine shaft is as follows: A quick inspection and positioning fixture for the dimensions of a wind turbine shaft includes a worktable. An inspection plate is detachably mounted on the worktable via a fixing component. A positioning groove is provided on the top surface of the inspection plate. The positioning groove is a contour groove that matches the outer circumferential surface of the shaft. The inspection plate has a first positioning plate and a second positioning plate vertically installed at both ends. The first positioning plate is connected to the side wall of the inspection plate by a first connecting block, and the second positioning plate is connected to the side wall of the inspection plate by a second connecting block. The first positioning plate has a first positioning hole, and the second positioning plate has a second positioning hole. The first positioning hole and the second positioning hole are coaxially arranged. When the first positioning plate and the second positioning plate are in the lowest position, the first positioning hole, the second positioning hole, and the positioning groove are coaxial. The inner bottom wall of the positioning groove is embedded with multiple contact sensors, which are respectively set at the key positions to be inspected. When all contact sensors are in contact with the outer peripheral surface of the shaft at the same time, it indicates that the length of each axial segment of the shaft is qualified.

[0006] Preferably, the workbench is provided with a first receiving groove, the first receiving groove is provided with a first lifting cylinder and a first lifting block, the first lifting block is fixedly connected to the top of the piston rod of the first lifting cylinder, the first positioning plate is located on the first lifting block, and the top surface of the first lifting block is flush with the top surface of the workbench.

[0007] Preferably, the workbench is provided with a second receiving groove, and the second receiving groove is provided with a second lifting cylinder and a second lifting block. The second lifting block is fixedly connected to the top of the piston rod of the second lifting cylinder, the second positioning plate is located on the second lifting block, and the top surface of the second lifting block is flush with the top surface of the workbench.

[0008] Preferably, the horizontal cross-section of the first connecting block is dovetail-shaped, and a first connecting groove for sliding of the first connecting block is provided on the side wall of the inspection plate. The first connecting block is disposed on both sides of the width direction of the first positioning plate, and the first connecting groove is located on both sides of the positioning groove.

[0009] Preferably, the horizontal cross-section of the second connecting block is dovetail-shaped, and a second connecting groove for sliding the second connecting block is provided on the side wall of the inspection plate. The second connecting block is disposed on both sides of the width direction of the second positioning plate, and the second connecting groove is located on both sides of the positioning groove.

[0010] Preferably, the second positioning plate includes a base and a top plate, the second connecting block is disposed on the base, one end of the top plate is hinged to one end of the base, and the second positioning hole is divided into two semi-circular holes, one semi-circular hole is located on the top surface of the base, and the other semi-circular hole is located on the bottom surface of the top plate; The stepped surfaces at both ends of the shaft abut against the side of the first positioning plate closest to the inspection plate and the side of the second positioning plate closest to the inspection plate.

[0011] Preferably, the fixing components are symmetrically arranged on both sides of the inspection plate in the width direction. The fixing components include a fixing plate and a fixing bolt. The fixing plate is fixedly connected to the side wall of the inspection plate. The worktable is provided with a threaded hole that mates with the fixing bolt. The fixing bolt passes through the fixing plate and is threadedly connected to the threaded hole.

[0012] Preferably, an operating platform is provided on the side of the workbench, and a control panel is provided on the operating platform. The control panel is electrically connected to both the first lifting cylinder and the second lifting cylinder, and the control panel is provided with an "up button" and a "down button". After pressing the "Up" button, the piston rods of the first and second lifting cylinders extend simultaneously and drive the corresponding first and second lifting blocks to rise to the set height. After pressing the "lower button", the piston rods of the first lifting cylinder and the second lifting cylinder retract simultaneously, driving the corresponding first lifting block and second lifting block to descend to their original height.

[0013] In summary, this application includes at least one of the following beneficial technical effects: 1. When the shaft is placed into the first positioning plate and the second positioning plate, the shaft is positioned axially. When all the contact sensors are in contact with the outer circumferential surface of the shaft at the same time, it indicates that the length of each axial segment of the shaft is qualified. This quickly checks whether the length of each axial segment of the shaft is qualified, thus improving inspection efficiency. 2. When it is necessary to measure the diameter of each radial section of the shaft, drive the first positioning plate and the second positioning plate to rise to the specified height, and then measure with a ruler. This facilitates manual operation and further improves inspection efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of a positioning fixture for rapid inspection of the dimensions of a wind turbine shaft, as described in an embodiment of this application.

[0015] Figure 2 This is a cross-sectional structural diagram of the positioning fixture used in the embodiments of this application.

[0016] Figure 3 This is a schematic cross-sectional view of the vertical structure of the first positioning plate, the second positioning plate, and the inspection plate in an embodiment of this application.

[0017] Figure 4 This is a schematic cross-sectional view of the first positioning plate, the second positioning plate, and the inspection plate in the horizontal direction, as shown in the embodiments of this application.

[0018] Explanation of reference numerals in the attached drawings: 1. Workbench; 2. Inspection plate; 21. Positioning slot; 211. Contact sensor; 22. First connecting slot; 23. Second connecting slot; 3. First positioning plate; 31. First connecting block; 32. First positioning hole; 4. Second positioning plate; 41. Second connecting block; 42. Second positioning hole; 43. Base; 44. Top plate; 5. First receiving slot; 51. First lifting cylinder; 52. First lifting block; 6. Second receiving slot; 61. Second lifting cylinder; 62. Second lifting block; 7. Fixing assembly; 71. Fixing plate; 72. Fixing bolt; 8. Operating table; 81. Control panel; 9. Shaft. Detailed Implementation

[0019] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0020] This application discloses a rapid inspection and positioning fixture for the dimensions of a wind turbine shaft.

[0021] Reference Figure 1-4 The quick inspection and positioning fixture for wind turbine shaft dimensions includes a workbench 1. An inspection plate 2 is detachably installed on the workbench 1 via a fixing component 7. The top surface of the inspection plate 2 is provided with a positioning groove 21, which is a contour groove that matches the outer circumferential surface of the shaft body 9.

[0022] The two ends of the inspection plate 2 are respectively vertically provided with a first positioning plate 3 and a second positioning plate 4. The first positioning plate 3 is connected to the side wall of the inspection plate 2 by a first connecting block 31, and the second positioning plate 4 is connected to the side wall of the inspection plate 2 by a second connecting block 41.

[0023] The first positioning plate 3 has a first positioning hole 32, and the second positioning plate 4 has a second positioning hole 42. The first positioning hole 32 and the second positioning hole 42 are coaxially arranged. When the first positioning plate 3 and the second positioning plate 4 are in the lowest position, the first positioning hole 32, the second positioning hole 42 and the positioning groove 21 are coaxial. The inner bottom wall of the positioning groove 21 is embedded with multiple contact sensors 211. The multiple contact sensors 211 are respectively set at the key positions to be inspected. When all contact sensors 211 are in contact with the outer peripheral surface of the shaft 9 at the same time, it indicates that the length of each section of the shaft 9 in the axial direction is qualified.

[0024] The workbench 1 is provided with a first receiving groove 5, and a first lifting cylinder 51 and a first lifting block 52 are provided in the first receiving groove 5. The first lifting block 52 is fixedly connected to the top of the piston rod of the first lifting cylinder 51. The first positioning plate 3 is located on the first lifting block 52, and the top surface of the first lifting block 52 is flush with the top surface of the workbench 1.

[0025] The workbench 1 is provided with a second receiving groove 6, and a second lifting cylinder 61 and a second lifting block 62 are provided in the second receiving groove 6. The second lifting block 62 is fixedly connected to the top of the piston rod of the second lifting cylinder 61. The second positioning plate 4 is located on the second lifting block 62, and the top surface of the second lifting block 62 is flush with the top surface of the workbench 1.

[0026] In order to keep the first positioning plate 3 connected to the inspection plate 2, the horizontal cross section of the first connecting block 31 is dovetail-shaped. The side wall of the inspection plate 2 is provided with a first connecting groove 22 for the first connecting block 31 to slide. The first connecting block 31 is located on both sides of the width direction of the first positioning plate 3, and the first connecting groove 22 is located on both sides of the positioning groove 21.

[0027] In order to keep the second positioning plate 4 connected to the inspection plate 2, the horizontal cross section of the second connecting block 41 is dovetail-shaped. The side wall of the inspection plate 2 is provided with a second connecting groove 23 for the second connecting block 41 to slide. The second connecting block 41 is located on both sides of the width direction of the second positioning plate 4, and the second connecting groove 23 is located on both sides of the positioning groove 21.

[0028] The second positioning plate 4 includes a base 43 and a top plate 44. The second connecting block 41 is disposed on the base 43. One end of the top plate 44 is hinged to one end of the base 43. The second positioning hole 42 is divided into two semi-circular holes, one of which is located on the top surface of the base 43 and the other is located on the bottom surface of the top plate 44.

[0029] The positions of the first positioning plate 3, the second positioning plate 4, and the inspection plate 2 are customized according to different shafts 9. The stepped surfaces at both ends of the shaft 9 closest to the end abut against the corresponding side of the first positioning plate 3 near the inspection plate 2 and the side of the second positioning plate 4 near the inspection plate 2. At this time, each section of the shaft 9 in the axial direction can be fully adapted to the positioning groove 21, and all contact sensors 211 and the outer peripheral surface of the shaft 9 are in contact at the same time.

[0030] When the shaft 9 is placed into the first positioning plate 3 and the second positioning plate 4, the axial direction of the shaft 9 is positioned. When all the contact sensors 211 are in contact with the outer circumferential surface of the shaft 9 at the same time, it indicates that the length of each axial segment of the shaft 9 is qualified, and the length of each axial segment of the shaft 9 is quickly checked. When it is necessary to measure the diameter of each radial segment of the shaft 9, the first positioning plate 3 and the second positioning plate 4 are driven to rise to the specified height, and then the measurement can be performed by measuring ruler. This facilitates manual operation and improves inspection efficiency.

[0031] The fixing components 7 are symmetrically arranged on both sides of the inspection plate 2 in the width direction.

[0032] The fixing component 7 includes a fixing plate 71 and a fixing bolt 72. The fixing plate 71 is fixedly connected to the side wall of the inspection plate 2. The workbench 1 is provided with a threaded hole that mates with the fixing bolt 72. The fixing bolt 72 passes through the fixing plate 71 and is threadedly connected to the threaded hole.

[0033] The inspection plate 2, the first positioning plate 3, and the second positioning plate 4 can be replaced as a whole depending on the different rotating shafts, so that shafts of different specifications 9 can be inspected.

[0034] An operating table 8 is provided on the side of the workbench 1. A control panel 81 is provided on the operating table 8. The control panel 81 is electrically connected to the first lifting cylinder 51 and the second lifting cylinder 61. The control panel 81 is provided with an "up button" and a "down button". After pressing the "Up" button, the piston rods of the first lifting cylinder 51 and the second lifting cylinder 61 extend simultaneously and drive the corresponding first lifting block 52 and second lifting block 62 to rise to the set height. After pressing the "lower button", the piston rods of the first lifting cylinder 51 and the second lifting cylinder 61 retract simultaneously and drive the corresponding first lifting block 52 and second lifting block 62 to descend to their original height.

[0035] The control panel 81 is also electrically connected to the contact sensor 211. When all the contact sensors 211 are in contact with the outer peripheral surface of the shaft 9 at the same time, the control panel 81 displays "Axial length qualified". If any contact sensor 211 is not in contact with the outer peripheral surface of the shaft 9, the control panel 81 displays "Axial length unqualified".

[0036] The implementation principle of the positioning fixture for rapid inspection of wind turbine shaft dimensions in this application embodiment is as follows: First, press the "Up" button to raise the first lifting block 52 and the second lifting block 62, along with the first positioning plate 3 and the second positioning plate 4, to the designated position simultaneously. Then, open the top plate 44 of the second positioning plate 4, insert the shaft 9, and move the shaft 9 towards the first positioning plate 3 so that one end of the shaft 9 passes through the first positioning hole 32 of the first positioning plate 3, and the other end of the shaft 9 is located in the second positioning hole 42 of the second positioning plate 4. At this time, the stepped surfaces of the two ends of the shaft 9 closest to the end abut against the corresponding side of the first positioning plate 3 near the inspection plate 2 and the side of the second positioning plate 4 near the inspection plate 2. Then, press the "Down" button to lower the first lifting block 52 and the second lifting block 62, along with the first positioning plate 3 and the second positioning plate 4, to the original height simultaneously, so that the shaft 9 is located in the positioning groove 21. When all the contact sensors 211 are in contact with the outer peripheral surface of the shaft 9 at the same time, the control panel 81 displays "Axial length qualified", indicating that the length of each axial segment of the shaft 9 is qualified. If any contact sensor 211 is not in contact with the outer peripheral surface of the shaft 9, the control panel 81 displays "Axial length unqualified".

[0037] When it is necessary to measure the diameter of each radial segment of the shaft 9, the first positioning plate 3 and the second positioning plate 4 are driven to rise to the specified height, and then the measurement can be done manually using a ruler, which is convenient for manual operation.

[0038] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A quick inspection and positioning fixture for the dimensions of a wind turbine shaft, characterized in that: Includes a workbench, on which an inspection plate is detachably mounted via a fixing component. The top surface of the inspection plate is provided with a positioning groove, which is a contour groove that matches the outer peripheral surface of the shaft. The inspection plate has a first positioning plate and a second positioning plate vertically installed at both ends. The first positioning plate is connected to the side wall of the inspection plate by a first connecting block, and the second positioning plate is connected to the side wall of the inspection plate by a second connecting block. The first positioning plate has a first positioning hole, and the second positioning plate has a second positioning hole. The first positioning hole and the second positioning hole are coaxially arranged. When the first positioning plate and the second positioning plate are in the lowest position, the first positioning hole, the second positioning hole, and the positioning groove are coaxial. The inner bottom wall of the positioning groove is embedded with multiple contact sensors, which are respectively set at the key positions to be inspected. When all contact sensors are in contact with the outer peripheral surface of the shaft at the same time, it indicates that the length of each axial segment of the shaft is qualified.

2. The rapid inspection and positioning fixture for wind turbine shaft dimensions according to claim 1, characterized in that: The workbench is provided with a first receiving slot, in which a first lifting cylinder and a first lifting block are provided. The first lifting block is fixedly connected to the top of the piston rod of the first lifting cylinder. The first positioning plate is located on the first lifting block, and the top surface of the first lifting block is flush with the top surface of the workbench.

3. The rapid inspection and positioning fixture for wind turbine shaft dimensions according to claim 1, characterized in that: The workbench is provided with a second receiving slot, and a second lifting cylinder and a second lifting block are provided in the second receiving slot. The second lifting block is fixedly connected to the top of the piston rod of the second lifting cylinder. The second positioning plate is located on the second lifting block, and the top surface of the second lifting block is flush with the top surface of the workbench.

4. The rapid inspection and positioning fixture for wind turbine shaft dimensions according to claim 1, characterized in that: The horizontal cross-section of the first connecting block is dovetail-shaped. A first connecting groove is provided on the side wall of the inspection plate for the first connecting block to slide. The first connecting block is disposed on both sides of the width direction of the first positioning plate, and the first connecting groove is located on both sides of the positioning groove.

5. The rapid inspection and positioning fixture for wind turbine shaft dimensions according to claim 1, characterized in that: The horizontal cross-section of the second connecting block is dovetail-shaped. A second connecting groove is provided on the side wall of the inspection plate for the second connecting block to slide. The second connecting block is located on both sides of the width direction of the second positioning plate, and the second connecting groove is located on both sides of the positioning groove.

6. The rapid inspection and positioning fixture for wind turbine shaft dimensions according to claim 1, characterized in that: The second positioning plate includes a base and a top plate. The second connecting block is disposed on the base. One end of the top plate is hinged to one end of the base. The second positioning hole is divided into two semi-circular holes, one semi-circular hole is located on the top surface of the base, and the other semi-circular hole is located on the bottom surface of the top plate. The stepped surfaces at both ends of the shaft abut against the side of the first positioning plate closest to the inspection plate and the side of the second positioning plate closest to the inspection plate.

7. The rapid inspection and positioning fixture for wind turbine shaft dimensions according to claim 1, characterized in that: The fixing components are symmetrically arranged on both sides of the inspection plate in the width direction; the fixing components include a fixing plate and a fixing bolt, the fixing plate is fixedly connected to the side wall of the inspection plate, the worktable is provided with a threaded hole that mates with the fixing bolt, and the fixing bolt passes through the fixing plate and is threadedly connected to the threaded hole.

8. The rapid inspection and positioning fixture for wind turbine shaft dimensions according to claim 7, characterized in that: An operating platform is provided on the side of the workbench, and a control panel is provided on the operating platform. The control panel is electrically connected to the first lifting cylinder and the second lifting cylinder. The control panel is provided with an "up button" and a "down button". After pressing the "Up" button, the piston rods of the first and second lifting cylinders extend simultaneously and drive the corresponding first and second lifting blocks to rise to the set height. After pressing the "lower button", the piston rods of the first lifting cylinder and the second lifting cylinder retract simultaneously and drive the corresponding first lifting block and second lifting block to descend to their original height.

Images