Wind turbine shaft inspection fixture

Abstract

The present invention is a wind turbine shaft inspection tool, comprising: a cylinder for sleeve-fitting the wind turbine shaft; a positioning device for plugging into the wire hole on the wind turbine shaft; a measuring device for clamping into the keyway on the wind turbine shaft and measuring the distance between the keyway and the wire hole; a detection device for plugging into the inner hole of the wind turbine shaft and detecting the threaded hole on the end face of the wind turbine shaft; an angle ruler for measuring the angle between the wire hole and the keyway on the wind turbine shaft. The wind turbine shaft is first plugged into the cylinder, and fixed by the action of the positioning device and the wire hole clamping, and then the angle between the wire hole and the keyway on the wind turbine shaft in the radial direction is measured by the angle ruler, and the distance between the keyway and the wire hole on the axial direction of the wind turbine shaft is measured by the measuring device, to determine whether the detected value meets the production requirements; the wind turbine shaft positioning device, the measuring device and the detection device jointly detect the positional relationship between the keyway, the wire hole and the threaded hole on the end face of the wind turbine shaft, thereby improving the detection accuracy.

Description

Technical Field

[0001] The invention relates to the technical field of wind turbine generators, in particular to a wind turbine shaft inspection tool. Background Art

[0002] There are position requirements for the end hole, keyway and wire hole of the wind turbine shaft. The wire hole is an inclined hole and is difficult to measure. In the past, there would be certain mismeasurements in the measurement, and the inspection fixture can only be used for a single model product, which is costly. The end hole position is far away from the wire hole and keyway position, so composite measurement is not possible, and quality control is unstable. Summary of the invention

[0003] The technical problem to be solved by the present invention is to solve the technical problems of high cost and low detection efficiency of traditional wind turbine shaft inspection tools.

[0004] The present invention provides a wind turbine shaft inspection tool, comprising:

[0005] Cylinder, used for sleeve connection of wind turbine shaft;

[0006] A positioning device, installed on the cylinder, used for plugging into the wire hole on the wind turbine shaft and positioning the wind turbine shaft;

[0007] A measuring device, mounted on the cylinder, for engaging the keyway on the wind turbine shaft and measuring the distance between the keyway and the wire hole in the axial direction of the wind turbine shaft;

[0008] A detection device, inserted into the inner hole of the wind turbine shaft, used to detect the threaded hole on the end face of the wind turbine shaft;

[0009] An angle ruler is installed on the cylinder and is used to measure the angle between the wire hole of the wind turbine shaft and the key slot in the radial direction of the wind turbine shaft.

[0010] First, the wind turbine shaft is inserted into the cylinder body, and fixed by the action of the positioning device and the wire hole being engaged. Then, whether the measuring device is effectively engaged with the keyway and whether the detecting device corresponds effectively to the threaded hole on the end face of the wind turbine shaft is preliminarily detected to see if the wind turbine shaft is qualified. If qualified, the angle between the wire hole of the wind turbine shaft and the keyway in the radial direction of the wind turbine shaft is measured by an angle ruler, and the distance between the keyway and the wire hole in the axial direction of the wind turbine shaft is measured by a measuring device to determine whether the detected value meets the production requirements. The wind turbine shaft positioning device, the measuring device and the detecting device jointly detect the positional relationship between the keyway, the wire hole and the end face threaded hole of the wind turbine shaft, thereby improving the detection accuracy. In addition, the present invention is applicable to a series of wind turbine shafts with the same relative position of the wire hole and the keyway, and is more practical.

[0011] Furthermore, the cylinder is provided with a positioning hole, the positioning device comprises a baffle and a positioning rod connected to each other, the positioning rod is inserted into the positioning hole, and the baffle is engaged with the positioning hole to fix the positioning device. Such a configuration has a simple structure and is easy to operate.

[0012] Furthermore, the end of the positioning rod is provided with two symmetrically arranged arc surfaces and two symmetrically arranged planes, and the arc surfaces are used to clamp the wire holes of the wind turbine shaft; the detection device includes a detection rod, and one end of the detection rod is provided with a clamping slot, and the clamping slot is used to clamp the plane; the other end of the detection rod is provided with a reference plate, and the reference plate is provided with a detection hole corresponding to the threaded hole on the end face of the wind turbine shaft. Whether the bolt passes through the detection hole and the threaded hole on the end face of the wind turbine shaft is effectively matched, the relative position of the threaded hole is detected, and the detection device is positioned by clamping the clamping slot with the plane, and no deflection occurs, thereby improving the detection accuracy.

[0013] Furthermore, the measuring device comprises a detection plate fixed on the cylinder and a clamping block clamped to the detection plate, the detection plate is provided with a scale, the clamping block is provided with a positioning block, and the positioning block is used to clamp the keyway of the wind turbine shaft. The positioning block is driven to move in the keyway by moving the clamping block, so as to measure the distance between the keyway and the wire hole in the axial direction of the wind turbine shaft, which has a simple structure and is easy to operate.

[0014] Furthermore, a T-shaped slot for clamping the detection board is provided at the lower end of the clamping block. The provision of the T-shaped slot makes the clamping of the clamping block and the detection board more firmly and the movement of the clamping block more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0016] Figure 1 It is a schematic diagram of the structure of the present invention;

[0017] Figure 2 is a schematic diagram of the structure of the positioning device;

[0018] Figure 3 is a right side view of the positioning device;

[0019] Figure 4 It is a schematic diagram of the structure of the detection device;

[0020] Figure 5 is a schematic diagram of the structure of the measuring device;

[0021] Figure 6 is a left side view of the measuring device;

[0022] In the figure: 1, cylinder; 2, positioning device; 3, measuring device; 4, detection device; 5, angle ruler; 11, positioning hole; 21, baffle; 22, positioning rod; 31, detection plate; 32, clamping block; 33, positioning block; 41, detection rod; 221, arc surface; 222, plane; 321, T-slot; 411, clamping slot; 42, reference plate; 421, detection hole. DETAILED DESCRIPTION

[0023] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0024] like Figure 1 As shown, the present invention is a wind turbine shaft inspection tool, comprising:

[0025] The cylinder 1 is used for sleeve connection of the wind turbine shaft and is provided with a positioning hole 11;

[0026] Positioning device 2, such as Figure 2 and Figure 3 As shown, it includes a baffle 21 and a positioning rod 22 connected to each other, the positioning rod 22 is inserted into the positioning hole 11, the baffle 21 and the positioning hole 11 are clamped to realize that the positioning device 2 is fixedly installed on the cylinder 1, and is used to plug the wire hole on the wind turbine shaft to position the wind turbine shaft; the end position of the positioning rod 22 is provided with two symmetrically arranged arc surfaces 221 and two symmetrically arranged planes 222, and the arc surface 221 is used to clamp the wire hole of the wind turbine shaft;

[0027] Measuring device 3, such as Figure 5 As shown, it includes a detection plate 31 fixed on the cylinder 1 and a clamping block 32 clamping the detection plate 31, as shown in FIG. Figure 6 As shown, the clamping block 32 is clamped to the detection plate 31 through the T-shaped slot 321 provided at the lower end, so that the clamping block 32 and the detection plate 31 are clamped more firmly, and the movement of the clamping block 32 is more stable; the detection plate 31 is provided with a scale, and the clamping block 32 is provided with a positioning block 33, and the positioning block 33 is used to clamp the key slot of the wind turbine shaft; the positioning block 33 is driven to move in the key slot by moving the clamping block 32, so as to measure the distance between the key slot and the wire hole in the axial direction of the wind turbine shaft;

[0028] The detection device 4 is inserted into the inner hole of the wind turbine shaft, such as Figure 4 As shown, it includes a detection rod 41, one end of which is provided with a card slot 411, and the card slot 411 is used to clamp the plane 222; the other end of the detection rod 41 is provided with a reference plate 42, and the reference plate 42 is provided with a detection hole 421 corresponding to the threaded hole on the end face of the wind turbine shaft; by passing a bolt through the detection hole 421 and checking whether it is effectively matched with the threaded hole on the end face of the wind turbine shaft, the relative position of the threaded hole is detected, and the card slot 411 is clamped with the plane 222 to realize the positioning of the detection device 4, and no deflection will occur, thereby improving the detection accuracy;

[0029] The angle ruler 5 is installed on the end surface of the cylinder 1 and is used to measure the angle between the wire hole of the wind turbine shaft and the key slot in the radial direction of the wind turbine shaft.

[0030] First, the wind turbine shaft is inserted into the cylinder 1, and fixed under the action of the positioning device 2 and the wire hole being engaged. Then, the positioning block 33 is effectively engaged with the key slot, and the detection hole 421 is effectively corresponding to the threaded hole on the end face of the wind turbine shaft to preliminarily detect whether the wind turbine shaft is qualified. If qualified, the angle between the wire hole of the wind turbine shaft and the key slot in the radial direction of the wind turbine shaft is measured by the angle ruler 5, and the distance between the key slot and the wire hole in the axial direction of the wind turbine shaft is measured by the measuring device 3 to determine whether the detected value meets the production requirements. The wind turbine shaft positioning device 2, the measuring device 3 and the detecting device 4 jointly detect the positional relationship between the key slot, the wire hole and the end face threaded hole of the wind turbine shaft, thereby improving the detection accuracy. In addition, the present invention is applicable to a series of wind turbine shafts with the same relative position of the wire hole and the key slot, and is more practical.

[0031] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A wind turbine shaft inspection fixture, characterized in that: include: The cylinder (1) is used for sleeve connection of the wind turbine shaft; A positioning device (2) is installed on the cylinder (1) and is used to plug into the wire hole on the wind turbine shaft and position the wind turbine shaft; A measuring device (3) is installed on the cylinder (1) and is used to engage the keyway on the wind turbine shaft and measure the distance between the keyway and the wire hole in the axial direction of the wind turbine shaft; A detection device (4) is inserted into the inner hole of the wind turbine shaft and is used to detect the threaded hole on the end face of the wind turbine shaft; An angle ruler (5) is mounted on the cylinder (1) and is used to measure the angle between the wire hole of the wind turbine shaft and the key slot in the radial direction of the wind turbine shaft; The cylinder (1) is provided with a positioning hole (11), the positioning device (2) comprises a baffle (21) and a positioning rod (22) connected to each other, the positioning rod (22) is inserted into the positioning hole (11), and the baffle (21) is engaged with the positioning hole (11) to fix the positioning device (2); The end of the positioning rod (22) is provided with two symmetrically arranged arc surfaces (221) and two symmetrically arranged planes (222), the arc surfaces (221) being used for clamping the wire holes of the wind turbine shaft; the detection device (4) comprises a detection rod (41), one end of the detection rod (41) is provided with a clamping groove (411), the clamping groove (411) being used for clamping the planes (222); the other end of the detection rod (41) is provided with a reference plate (42), the reference plate (42) being provided with a detection hole (421) corresponding to the threaded hole on the end face of the wind turbine shaft; The measuring device (3) comprises a detection plate (31) fixed on the cylinder (1) and a clamping block (32) clamped to the detection plate (31); the detection plate (31) is provided with a scale; the clamping block (32) is provided with a positioning block (33); the positioning block (33) is used to clamp to a keyway of a wind turbine shaft.

2. A wind turbine shaft inspection fixture according to claim 1, characterized in that: The lower end of the clamping block (32) is provided with a T-shaped slot (321) for clamping the detection plate (31).

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