Wind power rotating shaft flaw detection probe

Abstract

The utility model discloses a flaw detection probe for a wind power rotating shaft, which belongs to the technical field of flaw detection and comprises a supporting base, clamping plates are arranged on two sides of the upper end of the supporting base, a main shaft is clamped between the clamping plates on two sides, a clamping mechanism is mounted on the supporting base, and the clamping mechanism drives the clamping plates on two sides to move inwards simultaneously to clamp the main shaft. A first ring body capable of sliding is arranged at the upper end of the supporting base, an inserting block is inserted into the outer wall, close to the upper end, of the first ring body, a detection probe is detachably connected to the upper end of the inserting block, clamping plates on the two sides are driven by an arranged clamping mechanism to clamp a main shaft, and then the clamping plate on one side is driven to rotate through rotation of a first driving motor; the second ring body is matched to rotate along with the main shaft, the detection probe performs sufficient flaw detection on the same position of the main shaft along with the rotation of the main shaft, and then the detection probe moves left and right at the upper end of the main shaft, so that sufficient flaw detection can be performed on the main shaft.

Description

Technical Field

[0001] The utility model belongs to the technical field of flaw detection, and in particular relates to a wind turbine shaft flaw detection probe. Background Art

[0002] The fan main shaft is an important component that connects the fan blades and the fan base. The fan main shaft is hollow and made of stainless steel. The inner hole processing is difficult. The processing equipment for the fan main shaft is a deep hole drilling and boring machine. According to the characteristics of the fan main shaft, the deep hole drilling and boring machine needs to increase the headstock. The main shaft of the wind turbine has both radial and axial offsets. In fact, the axial offset of the main shaft is directly transmitted to the input shaft of the gearbox. Unless special treatment is done on the radial clearance of the spherical roller bearing, the axial clearance control and the positioning of the planetary gear, the axial offset will have an adverse effect on the planetary carrier support bearing in the gearbox.

[0003] Before the wind turbine shaft leaves the factory, it is necessary to conduct flaw detection on the main shaft to check whether its weld is qualified and whether there are any hidden flaws. For example, Chinese utility model patent CN205879910U discloses a flaw detection device, in which the base and the movable seat can slide relative to each other. During the flaw detection operation, the detection probe slides on the base with the movable seat to achieve the compression and relaxation of the object to be measured. Since the detection probe is installed on the elastic part, the detection probe is no longer in rigid contact with the surface of the object to be measured, but in flexible contact, so that the detection probe can be pressed on the object to be measured, while reducing the friction between the detection probe and the object to be measured, reducing the wear of the detection probe, and ensuring the detection accuracy.

[0004] Although the above-mentioned prior art reduces the wear of the detection probe, the surface of the rotating shaft is curved, and the detection probe needs to be attached to the outer wall of the main shaft for detection in sequence. The above-mentioned prior art cannot perform all-round detection of the outside of the main shaft, and manual detection is inefficient. Utility Model Content

[0005] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and utility model name of this application to avoid blurring the purpose of this section, specification abstract and utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0006] To solve the above problems, the utility model adopts the following technical solutions.

[0007] A wind turbine shaft flaw detection probe comprises a support base, clamping plates are arranged on both sides of the upper end of the support base, a main shaft is clamped between the clamping plates on both sides, a clamping mechanism is installed on the support base, the clamping mechanism drives the clamping plates on both sides to move inward at the same time to clamp the main shaft, a first slidable ring body is arranged on the upper end of the support base, second ring bodies are rotatably connected to the inner sides of the first ring body, the second ring bodies on both sides are sleeved on the outer wall of the main shaft, a plug-in block is plugged into the outer wall of the first ring body close to the upper end, the upper end of the plug-in block is detachably connected with the detection probe, the first ring body and the second ring body move on the outer wall of the main shaft to cooperate with the detection probe to perform flaw detection on the main shaft.

[0008] Preferably, there is a gap between the second ring bodies on both sides, and the detection end of the detection probe is located between the second ring bodies on both sides and close to the outer wall of the main shaft.

[0009] Preferably, the inner walls of the second ring bodies on both sides are rotatably connected with a plurality of balls, and each ball rotates freely and contacts the outer wall of the main shaft.

[0010] Preferably, the clamping mechanism includes a sliding rod, a support rod, an electric telescopic rod and a sliding plate. Sliding holes are provided on both sides of the two ends of the support base. The interior of each sliding hole is slidably connected to a sliding rod. The end of each sliding rod is fixedly connected to a support rod. The outer walls of the two support rods on the same side are fixedly connected to a sliding plate. The clamping plates on both sides are respectively connected to the sliding plates. The electric telescopic rods on both sides are extended or contracted at the same time so that the sliding rods on both sides slide inside the sliding holes, and the clamping plates on both sides are driven to move inward or outward at the same time through the support rods and the sliding plates.

[0011] Preferably, the outer walls on the opposite sides of the clamping plates are provided with rotating flanges that are slidably connected to the sliding plates, and the opposite surfaces of the two sliding plates on the same side are fixedly connected with mounting plates, and a first driving motor is detachably connected to one mounting plate, and the rotating end of the first driving motor passes through the mounting plate and is detachably connected to one clamping plate. The rotation of the first driving motor drives the one clamping plate to rotate, thereby enabling the main shaft to rotate.

[0012] Preferably, a sliding groove is provided at the upper end of the support base, a driving plate is slidably connected inside the sliding groove, a connecting plate is fixedly connected to the outer wall of the detection probe near the bottom, the driving plate and the connecting plate are detachably connected, and a reciprocating mechanism is installed inside the sliding groove, which enables the connecting plate and the driving plate to move inside the sliding groove.

[0013] Preferably, the reciprocating mechanism includes a second drive motor, a threaded drive rod and a drive plate. The threaded drive rod is rotatably connected inside the sliding groove, and the threaded drive rod is threadedly connected to the drive plate. One end of the support base is detachably connected to the second drive motor. The rotating end of the second drive motor is inserted into the interior of the sliding groove and is detachably connected to the end of the threaded drive rod. The rotation of the second drive motor drives the threaded drive rod to rotate, and then the connecting plate can be driven through the drive plate to carry the first ring body and the detection probe to reciprocate left and right inside the sliding groove.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The clamping mechanism is used to drive the clamping plates on both sides to clamp the spindle, and then the rotation of the first drive motor drives the clamping plate on one side to rotate, so that the spindle can rotate, and the second ring body follows the rotation. The detection probe performs full flaw detection on the same position of the spindle as the spindle rotates, and then the detection probe moves left and right at the upper end of the spindle, so that the spindle can be fully flaw detected.

[0016] 2. The balls are arranged to rotate freely, so that each ball rotates adaptively when the main shaft rotates or the second ring moves on the outer wall of the main shaft.

[0017] 3. The second drive motor in the drive mechanism is rotated to drive the threaded drive rod to rotate, and then the connecting plate can be driven by the drive plate to carry the first ring body and the detection probe to move back and forth left and right inside the sliding groove, so as to completely cover the outer wall of the support base for sufficient detection.

[0018] 4. By separating the connecting plate and the driving plate, the detection probe can be moved left and right along the outer wall of the main shaft by switching to manual movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of a wind turbine shaft flaw detection probe in the utility model;

[0020] Figure 2 This is a schematic diagram of the support rod structure in the utility model;

[0021] Figure 3 For the utility model Figure 2 The enlarged structural diagram at A in the middle;

[0022] Figure 4 This is a schematic diagram of the structure of the detection probe in the utility model;

[0023] Figure 5 For the utility model Figure 4 Enlarged structural diagram at B in the middle.

[0024] The corresponding relationship between the illustrations and component names in the figure is as follows:

[0025] 100, support base; 101, main shaft; 102, sliding hole; 103, sliding rod; 104, support rod; 105, sliding groove; 106, electric telescopic rod; 107, sliding plate; 108, mounting plate;

[0026] 200, clamping plate; 201, rotating flange; 202, first driving motor;

[0027] 300, detection probe; 301, first ring body; 302, second ring body; 303, plug-in block; 304, second drive motor; 305, threaded drive rod; 306, ball bearing; 307, connecting plate; 308, drive plate. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0029] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0030] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments. The present invention provides the following embodiments.

[0031] like Figure 1 As shown, it is a schematic diagram of the structure of a wind turbine shaft flaw detection probe according to a preferred embodiment of the utility model. The wind turbine shaft flaw detection probe of this embodiment includes a support base 100, and clamping plates 200 are slidably connected to both sides of the upper end of the support base 100. The clamping plates 200 on both sides move inward at the same time, and the main shaft 101 is clamped between the clamping plates 200 on both sides. In this embodiment, the sliding of the clamping plates 200 on both sides can be adjusted according to the length of the main shaft 101, and the support base 100 can support the equipment.

[0032] like Figure 2 as well as Figure 3 As shown, it is the support rod and Figure 2The enlarged structural schematic diagram at A in the middle shows that sliding holes 102 are provided on both sides of the two ends of the support base 100, and a sliding rod 103 is slidably connected inside each sliding hole 102. The end of each sliding rod 103 is fixedly connected to a support rod 104, and the outer walls of the two support rods 104 on the same side are fixedly connected to a sliding plate 107. The outer walls of the opposite sides of the clamping plate 200 are provided with a rotating flange 201 slidably connected to the sliding plate 107. The opposite surfaces of the two sliding plates 107 on the same side are fixedly connected to a mounting plate 108. A first drive motor 202 is detachably connected to one side of the mounting plate 108. The rotating end of the first drive motor 202 passes through the mounting plate 108 and is detachably connected to the clamping plate 200 on one side. Electric telescopic rods 106 are detachably connected to both sides of the upper end of the base 100. The telescopic ends of the electric telescopic rods 106 on both sides are arranged oppositely and are detachably connected to the outer walls of the support rods 104 on both sides. In this embodiment, the electric telescopic rods 106 on both sides extend or contract at the same time so that the sliding rods 103 on both sides slide inside the sliding holes 102, and the clamping plates 200 on both sides are driven to move inward or outward at the same time through the support rods 104 and the sliding plates 107, so that the spacing can be adjusted according to the length of the main shaft 101 for clamping. The rotation of the first drive motor 202 drives the clamping plate 200 on one side to rotate, so that the main shaft 101 can be rotated, so that the main shaft 101 rotates during flaw detection, and the detection surface is more comprehensive.

[0033] It is worth noting that the above-mentioned sliding rod 103, support rod 104, electric telescopic rod 106 and sliding plate 107 are the clamping mechanisms in this embodiment. The clamping mechanisms include but are not limited to the sliding rod 103, support rod 104, electric telescopic rod 106 and sliding plate 107. As long as the mechanism can make the clamping plates 200 on both sides move inward and outward at the same time, it can be applied to this embodiment.

[0034] like Figure 4 as well as Figure 5 As shown, it is the detection probe and Figure 5 The enlarged structural schematic diagram at point B in the middle shows that the upper end of the support base 100 is connected to a connecting plate 307, and the upper end of the connecting plate 307 is fixedly connected to a first ring body 301, and the second ring bodies 302 are rotatably connected to the inner sides of the first ring body 301, and there is a gap between the second ring bodies 302 on both sides, and the second ring bodies 302 on both sides are sleeved on the outer wall of the main shaft 101, and a plug-in block 303 is plugged into the outer wall of the first ring body 301 near the upper end, and the upper end of the plug-in block 303 is detachably connected to a detection probe 300, and the detection end of the detection probe 300 is located between the second ring bodies 302 on both sides, close to the main shaft 101. In this embodiment, when the main shaft 101 rotates, the second ring body 302 rotates with it, and the detection probe 300 performs sufficient flaw detection on the same position of the main shaft 101 as the main shaft 101 rotates.

[0035] like Figure 4As shown, in order to automatically perform a comprehensive inspection on the spindle 101, in this embodiment, a sliding groove 105 is provided at the upper end of the support base 100, and a driving plate 308 is slidably connected inside the sliding groove 105, and the driving plate 308 is detachably connected to the connecting plate 307. A threaded driving rod 305 is rotatably connected inside the sliding groove 105, and the threaded driving rod 305 is threadedly connected to the driving plate 308. One end of the support base 100 is detachably connected to a second driving motor 304, and the rotating end of the second driving motor 304 is inserted into the interior of the sliding groove 105. It is detachably connected to the end of the threaded drive rod 305. In this embodiment, the threaded drive rod 305 is driven to rotate by the second drive motor 304, and then the connecting plate 307 can be driven by the drive plate 308 to carry the first ring body 301 and the detection probe 300 to move back and forth left and right inside the sliding groove 105, so that the outer wall of the support base 100 can be completely covered for sufficient detection. The connecting plate 307 and the drive plate 308 can be separated and the manual movement mode can be switched to make the detection probe 300 move left and right along the outer wall of the main shaft 101.

[0036] It is worth noting that the above-mentioned second drive motor 304, threaded drive rod 305 and drive plate 308 are the reciprocating mechanism in this embodiment. The reciprocating mechanism includes but is not limited to the second drive motor 304, threaded drive rod 305 and drive plate 308. As long as it is a mechanism that can make the connecting plate 307 move back and forth left and right, it can be applied to this embodiment.

[0037] like Figure 5 As shown, in order to reduce the friction when the second ring body 302 moves on the outer wall of the main shaft 101, in this embodiment, the inner walls of the second ring bodies 302 on both sides are rotatably connected with multiple balls 306, and each ball 306 rotates freely, so that each ball 306 rotates adaptively when the main shaft 101 rotates or the second ring body 302 moves on the outer wall of the main shaft 101.

[0038] The above content is a further detailed description of the utility model in combination with specific implementation methods. It cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, without departing from the concept of the utility model, they can also make several simple deductions or substitutions, which should be regarded as belonging to the scope of protection determined by the claims submitted for the utility model.

Claims

1. A wind turbine shaft flaw detection probe, comprising a support base (100), wherein clamping plates (200) are arranged on both sides of the upper end of the support base (100), and a main shaft (101) is clamped between the clamping plates (200) on both sides, characterized in that: A clamping mechanism is installed on the support base (100), and the clamping mechanism drives the clamping plates (200) on both sides to move inwards at the same time to clamp the main shaft (101). A slidable first ring body (301) is arranged at the upper end of the support base (100), and the second ring bodies (302) are rotatably connected to the inner sides of the first ring body (301), and the second ring bodies (302) on both sides are sleeved on the outer wall of the main shaft (101). The outer wall of the first ring body (301) close to the upper end is plugged with a plug-in block (303), and the upper end of the plug-in block (303) is detachably connected with a detection probe (300), and the first ring body (301) and the second ring body (302) move on the outer wall of the main shaft (101) to cooperate with the detection probe (300) to perform flaw detection on the main shaft (101).

2. The wind turbine shaft flaw detection probe according to claim 1 is characterized in that: There is a gap between the second ring bodies (302) on both sides, and the detection end of the detection probe (300) is located between the second ring bodies (302) on both sides and close to the outer wall of the main shaft (101).

3. The wind turbine shaft flaw detection probe according to claim 2 is characterized in that: The inner walls of the second ring bodies (302) on both sides are rotatably connected to a plurality of balls (306), and each ball (306) is freely rotatable and contacts the outer wall of the main shaft (101).

4. The wind turbine shaft flaw detection probe according to claim 3 is characterized in that: The clamping mechanism comprises a sliding rod (103), a support rod (104), an electric telescopic rod (106) and a sliding plate (107); sliding holes (102) are arranged on both sides of both ends of the support base (100); a sliding rod (103) is slidably connected inside each sliding hole (102); the end of each sliding rod (103) is fixedly connected to the support rod (104); the outer walls of the two support rods (104) on the same side are fixedly connected to the sliding plate (107); the clamping plates (200) on both sides are respectively connected to the sliding plates (107); the electric telescopic rods (106) on both sides extend or contract at the same time so that the sliding rods (103) on both sides slide inside the sliding holes (102); and the clamping plates (200) on both sides are driven to move inward or outward at the same time through the support rods (104) and the sliding plates (107).

5. The wind turbine shaft flaw detection probe according to claim 4, characterized in that: The outer walls on the opposite sides of the clamping plates (200) are each provided with a rotating flange (201) slidably connected to the sliding plate (107); the opposite sides of the two sliding plates (107) on the same side are fixedly connected to a mounting plate (108); a first driving motor (202) is detachably connected to one side mounting plate (108); a rotating end of the first driving motor (202) passes through the mounting plate (108) and is detachably connected to one side clamping plate (200); the rotation of the first driving motor (202) drives the one side clamping plate (200) to rotate, thereby enabling the main shaft (101) to rotate.

6. The wind turbine shaft flaw detection probe according to claim 5, characterized in that: A sliding groove (105) is provided at the upper end of the support base (100), and a driving plate (308) is slidably connected inside the sliding groove (105). A connecting plate (307) is fixedly connected to the outer wall of the detection probe (300) near the bottom, and the driving plate (308) is detachably connected to the connecting plate (307). A reciprocating mechanism is installed inside the sliding groove (105), and the reciprocating mechanism enables the connecting plate (307) and the driving plate (308) to move inside the sliding groove (105).

7. The wind turbine shaft flaw detection probe according to claim 6, characterized in that: The reciprocating mechanism comprises a second driving motor (304), a threaded driving rod (305) and a driving plate (308); the interior of the sliding groove (105) is rotatably connected with the threaded driving rod (305); the threaded driving rod (305) is threadedly connected to the driving plate (308); one end of the supporting base (100) is detachably connected with the second driving motor (304); the rotating end of the second driving motor (304) is inserted into the interior of the sliding groove (105) and is detachably connected to the end of the threaded driving rod (305); the second driving motor (304) rotates to drive the threaded driving rod (305) to rotate, and then the connecting plate (307) can be driven by the driving plate (308) to carry the first ring body (301) and the detection probe (300) to move back and forth left and right inside the sliding groove (105).

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