A diameter measuring device for wind power gear shaft machining

Abstract

The present application relates to the technical field of wind power gear shaft measuring, in particular to a kind of wind power gear shaft processing diameter measuring device, comprising: the upper side of measuring table is provided with docking mechanism, adjusting mechanism is provided on docking mechanism, and measuring mechanism is provided on adjusting mechanism;The present application can realize the synchronous continuous contact type measurement to gear shaft neck roundness and diameter, and also can realize the fast continuous measurement to gear shaft gear geometric precision by the quick adjustment transformation of structure, so as to not only obtain the complete geometric parameter of gear shaft, avoid partial defect missed detection, and the measurement of neck roundness, diameter size and gear geometric precision can be completed by single equipment;It can also be realized that the diameter size of neck is measured, and the centering of precision center is guided synchronously, so that the axis of gear shaft and the line of center are quickly coincided and always stably kept, so as to meet the basic demand of gear shaft neck diameter measurement.

Description

Technical Field

[0001] This invention relates to the field of wind turbine gear shaft diameter measurement technology, specifically a diameter measurement device for wind turbine gear shaft machining. Background Technology

[0002] As the core transmission component of a wind turbine generator set, the gear shaft in the wind turbine gearbox plays a crucial role in connecting the low-speed shaft and the high-speed shaft. Its function is to efficiently convert the energy captured by the wind turbine into mechanical energy by transmitting torque and regulating the speed. To ensure the long-term stable operation of this core component under complex loads, after its machining, key geometric parameters such as journal diameter, roundness, and gear tooth profile must be precisely measured according to the design drawings. This ensures strict control of manufacturing precision and guarantees the transmission performance and service life of the entire unit.

[0003] In existing technologies, when measuring the geometric parameters of a pre-formed wind turbine gear shaft, it is usually necessary to use specialized equipment such as a runout tester to evaluate the shape tolerances of the bearing journal, such as roundness and cylindricity. A diameter measuring device is also used to accurately collect the actual diameter of the journal. At the same time, the gear shaft needs to be mounted on a gear measuring center, and a high-precision probe is used to scan and analyze key meshing parameters such as tooth profile, tooth pitch, and helix, so as to systematically verify whether its machining quality meets the design specifications.

[0004] However, traditional methods for measuring the dimensional parameters of machined wind turbine gear shafts have the following problems: 1. In existing technologies, because the measuring probe needs to contact the tooth surface and journal surface point by point, the data acquisition process is time-consuming and cannot cover the overall contour, resulting in discrete data. This makes it difficult to construct a complete and continuous product geometric model, which not only fails to achieve a comprehensive assessment of the gear shaft quality but also easily misses local minor dents or protrusions due to measurement blind spots, limiting the representativeness and reliability of the test results; 2. In existing technologies, when using a runout meter to measure the roundness of the gear shaft, its measurement accuracy highly depends on the precise coincidence of the line connecting the two centers with the gear shaft axis. Since the diameter of the supporting journal varies for different specifications of gear shafts, each replacement... When inspecting workpieces, the alignment structure of the runout gauge needs to be repeatedly adjusted, which not only makes the operation process cumbersome and time-consuming, but also may introduce measurement errors due to human operation deviations or alignment structure adjustment deviations, thus directly affecting the accuracy and consistency of the roundness and cylindricity evaluation results; 3. In the existing technology, due to the single function of various testing equipment, it is necessary to use independent equipment such as runout gauges, diameter measuring devices and gear measuring centers to measure different parameters of gear shafts separately. This not only causes the workpiece to be repeatedly disassembled and positioned between different devices, significantly reducing the testing efficiency, but also introduces cumulative errors due to multiple clamping and conversion, making it difficult to unify the accuracy evaluation benchmark between journal form and position tolerances and gear meshing parameters, thus affecting the collaborative judgment of the overall quality of the workpiece. Summary of the Invention

[0005] To achieve the above objectives, the present invention provides the following technical solution: a diameter measuring device for processing wind turbine gear shafts, comprising a measuring platform, a docking mechanism being provided on the upper side of the measuring platform, an adjusting mechanism being provided on the docking mechanism, and a measuring mechanism being provided on the adjusting mechanism.

[0006] The docking mechanism includes two guide rails symmetrically fixed on the upper side of the measuring platform. The two guide rails are provided with a movable docking part that moves back and forth. The movable docking part is provided with a locking drive part that locks the gear shaft and drives it to rotate. The locking drive part is provided with a positioning docking part that aligns the gear shaft axis.

[0007] The adjustment mechanism includes a movable adjustment part that is mounted on a guide rail and moves back and forth, and the movable adjustment part is provided with a lifting limit part that moves up and down and limits the gear shaft.

[0008] The measuring mechanism includes a fitting adjustment part disposed on the lifting limit part for vertical adjustment, a roundness measuring part disposed on the fitting adjustment part for measuring roundness, a deflection adjustment part disposed on the lifting limit part for rotation adjustment, and a precision measuring part disposed on the deflection adjustment part for measuring diameter and gear precision.

[0009] Preferably, the movable docking part includes an electric slider that is symmetrically slidably disposed on a guide rail and moves back and forth. A reinforcing platform is fixedly disposed on the upper side of the electric slider, and a movable platform is fixedly disposed on the upper side of the left and right symmetrical reinforcing platforms.

[0010] Preferably, the locking drive unit includes a drive assembly fixedly mounted on the upper side of the moving platform. Each of the two drive assemblies has an adjusting column that can extend and retract forward and backward and rotate in a directional manner. A tip is fixedly mounted on the side of the adjusting column away from the corresponding drive assembly, and the end of the tip away from the corresponding adjusting column is a conical surface.

[0011] Preferably, the positioning docking part includes a fixed seat symmetrically fixed on the drive assembly. A support sleeve is fixedly installed on the side of the fixed seat near the adjusting column, and an electric push rod is fixedly installed on the side of the fixed seat away from the adjusting column. The telescopic end of the electric push rod is slidably connected to the support sleeve and a docking rod that moves back and forth is fixedly installed. The end of the docking rod away from the corresponding electric push rod is a conical surface.

[0012] Preferably, the movable adjustment unit includes two electric sliders that are symmetrically slidably disposed on the guide rail and move back and forth. The electric sliders are located between two corresponding electric sliders. A movable frame is fixedly disposed on the upper side of the two symmetrical electric sliders, and a hydraulic cylinder is fixedly disposed on the lower side of the movable frame.

[0013] Preferably, the lifting and limiting part includes a U-shaped platform fixedly mounted on the telescopic end of the hydraulic cylinder and movable up and down. Guide rods that are slidably connected to the corresponding moving frame are fixedly mounted symmetrically on the lower side of the U-shaped platform. A V-shaped limiting platform is fixedly mounted on the upper side of the U-shaped platform. Multiple balls are evenly rolled on the upper side of the V-shaped limiting platform. Guide rails are symmetrically mounted on both the V-shaped limiting platform and the U-shaped platform.

[0014] Preferably, the fitting adjustment part includes a limiting groove that is formed on the V-shaped limiting platform and extends vertically. A rotating shaft is rotatably arranged on the V-shaped limiting platform and located on the opposite side of the two limiting grooves. A threaded rod is fixedly arranged on the lower side of the rotating shaft, and a knob is fixedly arranged on the lower side of the threaded rod.

[0015] Preferably, the roundness measuring part includes an adjusting slide block that is slidably disposed in the limiting slide groove and moves up and down. A roundness probe is installed on the upper side of the adjusting slide block. A lever dial indicator for reading the roundness probe measurement value is installed on the lower end of the adjusting slide block away from the corresponding rotating shaft. A threaded seat that is threadedly connected to the threaded rod is fixedly disposed on the side of the adjusting slide block close to the corresponding rotating shaft.

[0016] Preferably, the deflection adjustment unit includes an electric slider three that is slidably mounted on the guide rail two and moves up and down. A return frame is fixedly mounted on the left and right symmetrical electric slider three. A rotary cylinder is fixedly mounted on the return frame on the left and right symmetrically. A deflection plate is fixedly mounted on the drive end of the rotary cylinder.

[0017] Preferably, the precision measurement unit includes two L-shaped fixing frames fixedly installed on opposite sides of the upper ends of two deflection plates. On opposite sides of the vertical sections of the two L-shaped fixing frames, there are docking seats that slide and insert with the corresponding docking rods and electric push rods II located on the upper side of the docking seats. The telescopic ends of the electric push rods II are fixedly equipped with mounting plates. Precision probes and diameter measuring rods are installed vertically on opposite sides of the two mounting plates. Roller balls II are rolled on opposite sides of the two diameter measuring rods.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The present invention, through the cooperation of the docking mechanism, the adjustment mechanism and the measuring mechanism, can realize synchronous and continuous contact measurement of the roundness and diameter of the gear shaft journal. Furthermore, through the rapid adjustment and transformation of the structure, it can also realize rapid and continuous measurement of the gear shaft geometric accuracy. Thus, not only can the complete geometric parameters of the gear shaft be obtained, avoiding the omission of local defects, but also the measurement of journal roundness, diameter and gear geometric accuracy can be completed with a single device. The efficient evaluation of multiple accuracy indicators of the gear shaft can be achieved without changing the equipment, which not only ensures the uniformity of the measurement benchmark, but also significantly improves the detection efficiency and data consistency.

[0019] 2. Through the cooperation of the docking mechanism, adjustment mechanism and measuring mechanism, this invention can simultaneously guide the center to perform precise centering while measuring the journal diameter, so that the gear shaft axis and the line connecting the center can quickly achieve and remain stable. This not only meets the basic requirements for measuring the journal diameter of the gear shaft, but also ensures the high-precision positioning of the workpiece on the measurement reference. It fundamentally eliminates the roundness and cylindricity measurement errors caused by axis offset, significantly improves the accuracy of the test data and the efficiency of operation, and can also quickly adjust and adapt gear shafts of different specifications and sizes. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the present invention.

[0021] Figure 2 This is a partial cross-sectional schematic diagram of the docking mechanism.

[0022] Figure 3 This is a schematic diagram of the adjustment mechanism.

[0023] Figure 4 This is a frontal cross-sectional view of part of the adjustment mechanism.

[0024] Figure 5 This is a partial structural diagram of the lifting and limiting part.

[0025] Figure 6 This is a schematic diagram of part of the measuring mechanism.

[0026] Figure 7 This is a partial cross-sectional schematic diagram of the fitting and adjustment section.

[0027] Figure 8 This is a partial cross-sectional schematic diagram of the precision measurement section.

[0028] In the diagram: 1. Measuring platform; 2. Docking mechanism; 21. Guide rail one; 22. Moving docking part; 221. Electric slider one; 222. Reinforcing platform; 223. Moving platform; 23. Locking drive part; 231. Drive assembly; 232. Adjusting column; 233. Center; 24. Positioning docking part; 241. Fixed seat; 242. Support sleeve; 243. Electric push rod one; 244. Docking rod; 3. Adjusting mechanism; 31. Moving adjustment part; 311. Electric slider two; 312. Moving frame; 313. Hydraulic cylinder; 32. Lifting limit part; 321. U-shaped platform; 322. V-shaped limit platform; 3 23. Guide rail II; 4. Measuring mechanism; 41. Fitting adjustment part; 411. Limiting slide; 412. Rotating shaft; 413. Threaded rod; 414. Knob; 42. Roundness measuring part; 421. Adjusting slide; 422. Roundness probe; 423. Lever dial indicator; 424. Threaded seat; 43. Deflection adjustment part; 431. Electric slider III; 432. Return frame; 433. Rotary cylinder; 434. Deflection plate; 44. Precision measuring part; 441. L-shaped fixing frame; 442. Docking seat; 443. Electric push rod II; 444. Mounting plate; 445. Precision probe; 446. Diameter measuring rod. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Please see Figure 1 A diameter measuring device for processing wind turbine gear shafts includes a measuring platform 1, a docking mechanism 2 is provided on the upper side of the measuring platform 1, an adjusting mechanism 3 is provided on the docking mechanism 2, and a measuring mechanism 4 is provided on the adjusting mechanism 3.

[0031] Please see Figure 1 The docking mechanism 2 includes guide rails 21 that are symmetrically fixed on the upper side of the measuring table 1. The two guide rails 21 are provided with a movable docking part 22 that can be moved back and forth for adjustment. The movable docking part 22 is provided with a locking drive part 23 for locking the gear shaft and driving it to rotate in an orientation. The locking drive part 23 is provided with a positioning docking part 24 for precisely assisting in aligning the gear shaft axis.

[0032] Please see Figure 1 and Figure 2The movable docking part 22 includes an electric slider 221 that is symmetrically slidably disposed on the guide rail 21 and moves back and forth. A reinforcing platform 222 is fixedly disposed on the upper side of the electric slider 221, and a moving platform 223 is fixedly disposed on the upper side of the left and right symmetrical reinforcing platforms 222.

[0033] Please see Figure 1 and Figure 2 The locking drive unit 23 includes a drive assembly 231 fixedly mounted on the upper side of the moving platform 223. Each of the two drive assemblies 231 is equipped with an adjustment column 232 that can extend and retract and rotate in a directional manner on one side of the opposite side. A tip 233 is fixedly mounted on the side of the adjustment column 232 away from the corresponding drive assembly 231. The end of the tip 233 away from the corresponding adjustment column 232 is a conical surface.

[0034] The electric slider 221 can drive the corresponding reinforcement platform 222 and the moving platform 223 to move back and forth along the guide rail 21. The moving platform 223 then drives the corresponding drive assembly 231 to move and adjust synchronously. It should be noted that the drive assembly 231 is composed of an existing rotary motor and telescopic cylinder. The drive assembly 231 can drive the corresponding adjusting column 232 and the top point 233 to extend and retract and rotate in a directional manner.

[0035] Please see Figure 1 and Figure 2 The positioning docking part 24 includes a fixed seat 241 symmetrically fixed on the drive assembly 231. A support sleeve 242 is fixedly installed on the side of the fixed seat 241 near the adjusting column 232. An electric push rod 243 is fixedly installed on the side of the fixed seat 241 away from the adjusting column 232. The telescopic end of the electric push rod 243 is slidably connected to the support sleeve 242 and a docking rod 244 that moves back and forth is fixedly installed. The end of the docking rod 244 away from the corresponding electric push rod 243 is a conical surface. The axis of the symmetrical docking rod 244 is on the same horizontal plane as the axis of the corresponding tip 233.

[0036] Please see Figure 1 and Figure 3 The adjustment mechanism 3 includes a movable adjustment part 31 that is mounted on the guide rail 21 and can move back and forth. The movable adjustment part 31 is provided with a lifting limit part 32 that can move up and down and supports the limit gear shaft.

[0037] Please see Figure 1 , Figure 3 and Figure 4 The movable adjustment unit 31 includes an electric slider 311 that is symmetrically slidably disposed on the guide rail 21 and moves back and forth. The electric slider 311 is located between two corresponding electric sliders 221. A movable frame 312 is fixedly disposed on the upper side of the symmetrical electric sliders 311. A hydraulic cylinder 313 is fixedly disposed on the lower side of the movable frame 312.

[0038] Please see Figure 1 , Figure 3 , Figure 4 and Figure 5 The lifting and limiting part 32 includes a U-shaped platform 321 fixedly mounted on the telescopic end of the hydraulic cylinder 313 and moving up and down. Guide rods that are slidably connected to the corresponding moving frame 312 are symmetrically fixed on the lower side of the U-shaped platform 321. A V-shaped limiting platform 322 is fixedly mounted on the upper side of the U-shaped platform 321. Multiple balls are evenly rolled on the upper side of the V-shaped limiting platform 322. Guide rails 323 are symmetrically fixed on both the V-shaped limiting platform 322 and the U-shaped platform 321.

[0039] The electric slider 311 can drive the corresponding moving frame 312 and hydraulic cylinder 313 to move back and forth along the guide rail 21 for adjustment. The moving frame 312 then drives the corresponding U-shaped platform 321 and V-shaped limit platform 322 to move and adjust synchronously. The hydraulic cylinder 313 can drive the U-shaped platform 321 and V-shaped limit platform 322 to move up and down for adjustment.

[0040] When the gear shaft needs to be aligned and clamped, the gear shaft journal is first placed on the corresponding V-shaped limiting stage 322 by the external feeding equipment. Then, the V-shaped limiting stage 322 and the gear shaft are moved up and down by the hydraulic cylinder 313. At the same time, the positioning docking part 24 cooperates with the measuring mechanism 4 to guide and align the gear shaft that is being adjusted up and down, so that the axis of the gear shaft is quickly and stably aligned with the line connecting the two centers 233. Then, the electric slider 221 drives the drive assembly 231 to move towards the gear shaft, and the drive assembly 231 drives the adjusting column 232 and the center 233 to move towards the corresponding end of the gear shaft until the two centers 233 stably clamp and lock the gear shaft. Thus, the drive assembly 231 can drive the center 233 and the gear shaft to rotate synchronously and stably.

[0041] Please see Figure 1 and Figure 3 The measuring mechanism 4 includes a fitting adjustment part 41 disposed on the lifting limit part 32 and used for vertical movement adjustment; a roundness measuring part 42 disposed on the fitting adjustment part 41 for measuring the roundness of the gear shaft journal; a deflection adjustment part 43 disposed on the lifting limit part 32 for rotation adjustment; and a precision measuring part 44 disposed on the deflection adjustment part 43 for measuring the diameter of the gear shaft journal and the gear precision and for precise alignment with the positioning docking part 24.

[0042] Please see Figure 3 , Figure 5 and Figure 7The fitting adjustment part 41 includes a limiting groove 411 that is formed on the V-shaped limiting platform 322 and extends vertically. A rotating shaft 412 is rotatably arranged on the V-shaped limiting platform 322 and located on the opposite side of the two limiting grooves 411. A threaded rod 413 is fixedly arranged on the lower side of the rotating shaft 412, and a knob 414 is fixedly arranged on the lower side of the threaded rod 413.

[0043] Please see Figure 3 and Figure 7 The roundness measuring part 42 includes an adjusting slide 421 that is slidably disposed in the limiting slide groove 411 and moves up and down. A roundness probe 422 is installed on the upper side of the adjusting slide 421. A lever micrometer 423 for reading the measurement value of the roundness probe 422 is installed on the lower end of the adjusting slide 421 away from the corresponding rotating shaft 412. A threaded seat 424 that is threadedly connected to the threaded rod 413 is fixedly disposed on the side of the adjusting slide 421 close to the corresponding rotating shaft 412.

[0044] When the gear shaft is stably aligned and clamped, the threaded rod 413 and the rotating shaft 412 are rotated by rotating the knob 414. The threaded rod 413 then drives the threaded seat 424 and the adjusting slide 421 to move up and down along the limiting slide groove 411 through the screw drive. The adjusting slide 421 then drives the roundness probe 422 to move synchronously and adjust until the roundness probe 422 is stably in contact with the journal surface of the clamped gear shaft and can detect the roundness parameter of the gear shaft journal. The detected roundness parameter can be read by the lever dial indicator 423.

[0045] When measuring the roundness of the clamped gear shaft journal, the drive assembly 231 first drives the center 233 and the gear shaft to rotate in an oriented manner. The roundness probe 422 then simultaneously measures the roundness parameters at the corresponding contact positions of the gear shaft journal. Next, the electric slider 311 drives the V-shaped limit stage 322 and the roundness probe 422 to move gradually from one end of the corresponding journal to the other end and pause briefly. This allows the roundness probe 422 to continuously contact various positions on the surface of the corresponding gear shaft journal along the gear shaft axis, thereby achieving continuous measurement of the roundness parameters of the gear shaft journal. If the roundness parameter error values ​​at various positions of the gear shaft journal are all within the range of 0.005mm to 0.025mm as required by the drawing, then the roundness of the gear shaft journal meets the usage requirements; otherwise, it does not. The ball bearings can greatly reduce the frictional resistance experienced by the gear shaft during rotation and movement of the V-shaped limit stage 322 along the guide rail 21.

[0046] Please see Figure 3 , Figure 6 and Figure 8The deflection adjustment unit 43 includes an electric slider 431 that is slidably mounted on the guide rail 323 and moves up and down. A return frame 432 is fixedly mounted on the left and right symmetrical electric sliders 431. A rotary cylinder 433 is fixedly mounted on the return frame 432. A deflection plate 434 is fixedly mounted on the drive end of the rotary cylinder 433.

[0047] Please see Figure 3 , Figure 4 and Figure 8 The precision measurement unit 44 includes two L-shaped fixing frames 441 fixedly installed on opposite sides of the upper ends of two deflection plates 434. A docking seat 442 and an electric push rod 443 located on the upper side of the docking seat 442 are fixedly installed on opposite sides of the vertical sections of the two L-shaped fixing frames 441. A circular docking slot is provided on the docking seat 442, which is through-hole and slidably inserted into the corresponding docking rod 244. A distance sensor (not shown in the figure) is installed on the telescopic end of the electric push rod 443. A mounting plate 444 is fixedly installed on the telescopic end of the electric push rod 443. A precision probe 445, which cooperates with an external gear measuring center (not shown in the figure) to read the gear shaft precision measurement value, and a diameter measuring rod 446, which cooperates with the distance sensor to read the gear shaft journal diameter measurement value, are installed on opposite sides of the two mounting plates 444. Two ball bearings are rolled on opposite sides of the two diameter measuring rods 446, and the line connecting the centers of the two corresponding docking slots coincides with the axis of the corresponding diameter measuring rod 446.

[0048] Before clamping the gear shaft placed on the V-shaped limiting stage 322, the electric push rod 443 drives the corresponding two mounting plates 444 and the measuring rod 446 to move synchronously relative to each other. With the help of the distance sensor, the distance between the two balls at the ends of the measuring rods 446 is made to match the diameter of the gear shaft journal as required by the drawing. Then, the electric slider 431 drives the return frame 432 to move up and down along the guide rail 323 for adjustment. The return frame 432 then drives the rotary cylinder 433 and the deflection plate 434 to move synchronously for adjustment. The deflection plate 434 then drives the electric push rod 443 and the measuring rod 446 on the mounting plate 444 to move synchronously for adjustment through the L-shaped fixing frame 441 until the balls contact the surface of the gear shaft journal. This makes the center of the cross-section at the corresponding position of the gear shaft located on the extension line of the axis of the two measuring rods 446, that is, the measuring rods 446 can stably measure the diameter of the gear shaft journal.

[0049] When the measuring rod 446 can stably measure the diameter of the gear shaft journal, the hydraulic cylinder 313 drives the gear shaft on the V-shaped limit stage 322 and the mating seat 442 on the L-shaped fixing frame 441 to move up and down synchronously until the mating slot on the mating seat 442 is aligned with the corresponding mating rod 244. Then, the electric slider 221 drives the mating rod 244 to move and insert it into the corresponding mating slot. The electric push rod 243 drives the symmetrically positioned mating rods 244 to move continuously relative to each other until the mating seat 442 can always be aligned with the mating rod 244 during the back-and-forth movement of the electric slider 311 along the gear shaft axis. 44 Sliding connection: Since the axis of the left and right symmetrical docking rods 244 is on the same horizontal plane as the axis of the corresponding tip 233, and the line connecting the centers of the two corresponding docking slots coincides with the axis of the corresponding measuring rod 446, the line connecting the two tips 233 is stably coincident with the axis of the gear shaft. With the cooperation of the docking rod 244 and the corresponding docking seat 442, it can be ensured that the two are always stably coincident during the measurement process. Thus, the tip 233 can be driven by the drive assembly 231 to stably clamp the gear shaft. The support sleeve 242 can provide a certain degree of support and reinforcement for the telescopic end of the electric push rod 243 and the docking rod 244.

[0050] When measuring the roundness of the gear shaft journal, the measuring rod 446 can move synchronously with the roundness probe 422 and continuously contact various positions on the corresponding gear shaft journal surface along the gear shaft axis extension direction, thereby realizing continuous measurement of the diameter parameter of the gear shaft journal. If the diameter parameter error value at each position of the gear shaft journal is within the range of 0.005mm~0.025mm as required by the drawing, then the diameter of the gear shaft journal meets the usage requirements; otherwise, it does not. The ball bearings can greatly reduce the frictional resistance between the measuring rod 446 and the gear shaft.

[0051] The above-described operation method enables simultaneous precise alignment of the center 233 while measuring the journal diameter, ensuring that the gear shaft axis and the line connecting the center 233 quickly and stably overlap and remain aligned. This not only meets the basic requirements for measuring the gear shaft journal diameter but also ensures high-precision positioning of the workpiece on the measurement datum, fundamentally eliminating roundness and cylindricity measurement errors caused by axis offset. This significantly improves the accuracy of the inspection data and operational efficiency, and also allows for rapid adjustment and adaptation of gear shafts of different specifications and sizes.

[0052] When measuring gear precision, the electric actuator 243 first drives the corresponding mating rod 244 to slide out of the corresponding mating seat 442. Then, the rotary cylinder 433 drives the upper end of the deflection plate 434 and the L-shaped fixing bracket 441 to deflect towards the corresponding gear on the gear shaft. The precision probe 445 on the upper end of the mounting plate 444 deflects synchronously. Then, in conjunction with the movement and adjustment of the L-shaped fixing bracket 441 and the precision probe 445 along the guide rail 323 with the electric slider 331, and the left and right movement and adjustment of the precision probe 445 by the electric actuator 243, the precision probe 445 can be stably attached to the corresponding position on the corresponding tooth surface of the gear. The L-shaped fixing frame 441 and the precision probe 445 are moved back and forth by the electric slider 211, so that the precision probe 445 can continuously measure various positions on the corresponding tooth surface. At the same time, the gear shaft is driven to rotate intermittently at a fixed angle by the center point 233, so that the precision probe 445 can comprehensively measure each tooth on the gear, thereby measuring multiple precision parameters such as the cumulative total deviation of tooth pitch, the single tooth pitch deviation, and the total deviation of tooth profile. If the precision level of multiple precision parameters such as the cumulative total deviation of tooth pitch, the single tooth pitch deviation, and the total deviation of tooth profile is less than or equal to level 5, then the gear precision meets the usage requirements; otherwise, it does not.

[0053] The above-described operation method enables synchronous and continuous contact measurement of the roundness and diameter of the gear shaft journal. Furthermore, through rapid structural adjustment and transformation, it also enables rapid and continuous measurement of the gear shaft's geometric accuracy. This not only obtains complete geometric parameters of the gear shaft, avoiding missed detection of local defects, but also allows for the measurement of journal roundness, diameter, and gear geometric accuracy using a single device. It achieves efficient evaluation of multiple accuracy indicators of the gear shaft without changing equipment, ensuring the uniformity of measurement standards and significantly improving inspection efficiency and data consistency.

[0054] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0055] Furthermore, the terms "first," "second," "number one," and "number two" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "number one," or "number two" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0056] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0057] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A diameter measuring device for wind turbine gear shaft machining, comprising a measuring table, characterized in that: The upper side of the measuring table is provided with a docking mechanism, the docking mechanism is provided with an adjusting mechanism, and the adjusting mechanism is provided with a measuring mechanism; The docking mechanism comprises two guide rails one symmetrically and fixedly arranged on the upper side of the measuring table, a moving docking part movably arranged on the two guide rails one and moving forward and backward, a locking drive part arranged on the moving docking part and driving the locking gear shaft to rotate, and a positioning docking part arranged on the locking drive part and being in alignment with the axis of the gear shaft. The adjusting mechanism comprises a moving adjusting part movably arranged on the guide rail one and moving forward and backward, and a lifting limiting part arranged on the moving adjusting part and moving up and down and limiting the gear shaft. The measuring mechanism comprises a fitting adjusting part arranged on the lifting limiting part and used for up and down adjustment, a roundness measuring part arranged on the fitting adjusting part and used for roundness measurement, a deflection adjusting part arranged on the lifting limiting part and used for rotation adjustment, and a precision measuring part arranged on the deflection adjusting part and used for diameter and gear precision measurement. The gear shaft is clamped in the center through the cooperation of the docking mechanism, the adjusting mechanism and the measuring mechanism, the roundness and diameter of the gear shaft neck are continuously measured through the measuring mechanism, and the gear precision of the gear shaft is measured through the structure adjustment of the measuring mechanism. The positioning docking part comprises a fixed seat symmetrically and fixedly arranged on the locking drive part, a supporting sleeve fixedly arranged on the side of the fixed seat close to the adjusting column, and an electric push rod one fixedly arranged on the side of the fixed seat away from the adjusting column, wherein the telescopic end of the electric push rod one is slidably connected with the supporting sleeve and is fixedly provided with a docking rod movably arranged and moving forward and backward, and the end of the docking rod away from the corresponding electric push rod one is a conical surface. The roundness measuring part comprises an adjusting sliding seat movably arranged and moving up and down, and a roundness probe mounted on the upper side of the adjusting sliding seat. The precision measuring part comprises a precision probe and a diameter measuring rod.

2. The diameter measuring device for wind turbine gear shaft machining according to claim 1, characterized in that: The moving docking part comprises two electric sliding blocks one symmetrically and slidably arranged on the guide rail one and movably arranged and moving forward and backward, a reinforcing table fixedly arranged on the upper side of the electric sliding block one, and a moving table fixedly arranged on the upper side of the symmetrically reinforcing tables.

3. The diameter measuring device for wind turbine gear shaft machining according to claim 2, characterized in that: The locking drive part comprises a drive assembly fixedly arranged on the upper side of the moving table, an adjusting column telescopically and directionally rotatably arranged on the opposite side of each drive assembly, a center fixedly arranged on the side of the adjusting column away from the corresponding drive assembly, and a conical surface arranged on the end of the center away from the corresponding adjusting column.

4. The diameter measuring device for wind turbine gear shaft machining according to claim 2, characterized in that: The moving adjusting part comprises two electric sliding blocks two symmetrically and slidably arranged on the guide rail one and movably arranged and moving forward and backward, the electric sliding block two being located between the two corresponding electric sliding blocks one, symmetrically electric sliding blocks two fixedly arranged on the upper side of the moving frame, and a hydraulic cylinder fixedly arranged on the lower side of the moving frame.

5. The diameter measuring device for wind turbine gear shaft machining according to claim 4, characterized in that: The lifting limiting part comprises a U-shaped table fixedly arranged on the telescopic end of the hydraulic cylinder and movably arranged and moving up and down, guide rods slidably connected with the corresponding moving frame and symmetrically fixedly arranged on the lower side of the U-shaped table, a V-shaped limiting table fixedly arranged on the upper side of the U-shaped table, a plurality of balls uniformly and rollingly arranged on the upper side of the V-shaped limiting table, and guide rails two symmetrically and fixedly arranged on the V-shaped limiting table and the U-shaped table.

6. The diameter measuring device for wind turbine gear shaft machining according to claim 5, characterized in that: The fitting adjusting part comprises a limiting sliding groove penetrating up and down and arranged on the V-shaped limiting table, a rotating shaft rotatably arranged on the V-shaped limiting table and located on the opposite side of the two limiting sliding grooves, a threaded rod fixedly arranged on the lower side of the rotating shaft, and a knob fixedly arranged on the lower side of the threaded rod.

7. The diameter measuring device for wind turbine gear shaft machining according to claim 6, characterized in that: The up-and-down moving adjusting sliding seat is slidingly arranged in the limiting sliding groove, and a threaded seat in threaded connection with the threaded rod is fixedly arranged on one side of the adjusting sliding seat close to the corresponding rotating shaft.

8. The diameter measuring device for wind turbine gear shaft machining according to claim 5, characterized in that: The deflection adjusting part comprises electric sliding blocks three slidingly arranged on the guide rails two and moving up and down, and a back-shaped frame is fixedly arranged on the electric sliding blocks three symmetrically left and right, the back-shaped frame is fixedly arranged with rotary air cylinders symmetrically left and right, and a deflection plate is fixedly arranged on the driving end of the rotary air cylinders.

9. The diameter measuring device for wind turbine gear shaft machining according to claim 8, characterized in that: The precision measuring part comprises L-shaped fixed frames fixedly arranged on the opposite sides of the upper ends of the two deflection plates, and a butt joint seat in sliding insertion fit with the corresponding butt joint rod and an electric push rod two located on the upper side of the butt joint seat are fixedly arranged on the opposite sides of the vertical sections of the two L-shaped fixed frames, an installation plate is fixedly arranged on the extension end of the electric push rod two, a precision probe and a diameter measuring rod are installed on the opposite sides of the two installation plates, and ball bearings two are rolling arranged on the opposite sides of the two diameter measuring rods.

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