Detection device for weld joint of fan tower

Abstract

The utility model discloses a detection device for a welding seam of a fan tower drum, which comprises a welding seam detector, a probe for detecting the welding seam, a data line and a lead seat for transmitting information detected by the probe into the welding seam detector, and a base for realizing quick connection between the probe and the lead seat, the lead seat is fixedly installed in the base, and the lead seat is further fixedly connected with the data line, according to the detection device for the fan tower tube welding seam, the threads on the surface of the fastening bolt in the connecting assembly are used for being connected with the probe, so that the stability degree of connection between the probe and the lead seat in the base is improved, and the detection accuracy is improved. And the lead seat is connected with the welding seam detector through the data line, so that the stability of the connection between the probe and the welding seam detector can be realized by using the fastening bolts, and the states of the plurality of fastening bolts in the connecting assembly can be simultaneously adjusted, thereby improving the use efficiency of the whole structure.

Description

Technical Field

[0001] The utility model relates to the technical field of weld detection, in particular to a detection device for welds of a wind turbine tower. Background Art

[0002] During the acceptance inspection after the wind turbine tower is built, it is necessary to inspect and accept the various welds inside the tower. Due to the complex internal structure of the tower, the probes on the weld detector are often replaced when using the weld detector to meet different inspection requirements. At the same time, in order to ensure the accuracy of the inspection, it is necessary to ensure the stability of the connection between the probe and the detector. However, after multiple replacements of the probes of traditional detectors, the buckles used to engage the probes on the detector will become loose, affecting the connection effect of the probes and causing poor contact that affects the inspection results. For this reason, we propose a detection device for the welds of wind turbine towers. Utility Model Content

[0003] The purpose of the present utility model is to provide a device for detecting welds of a wind turbine tower, so as to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a detection device for the weld of a wind turbine tower, comprising a weld detector, a probe for detecting welds, a data line and a lead seat for transmitting information detected by the probe into the weld detector, and a base for realizing a quick connection between the probe and the lead seat, wherein the lead seat is fixedly installed inside the base, and the lead seat is also fixedly connected to the data line, and the lead seat is also plugged into the probe, and a connecting assembly and a driving assembly are also provided on the base; the connecting assembly comprises a fastening bolt that can be threadedly connected to the probe, a fixing nut fixedly installed inside the base, a transmission gear ring rotatably arranged inside the base, a first driven gear meshing with the transmission gear ring, a square rod fixedly installed on the first driven gear, and a limit block fixedly installed on the end of the square rod; the driving assembly comprises a connector rotatably arranged on the base, The cam is fixedly provided with a toothed plate, and the toothed plate ...

[0005] Preferably, the fastening bolt is threadedly connected to the fixing nut, the square rod is slidingly connected to the fastening bolt, and the limit block is located in the inner cavity of the fastening bolt.

[0006] Preferably, annular gear blocks for meshing are provided on the inner ring and the outer ring of the transmission gear ring, and the transmission gear ring is also meshedly connected with the driving gear.

[0007] Preferably, the stop block is provided with friction patterns for enhancing the friction force between the stop block and the friction block.

[0008] Preferably, the elliptical block is located above the auxiliary spring, and the arc surface of the elliptical block is tangent to the slide plate.

[0009] Preferably, the connector is provided with a hexagonal socket for cooperating with a hexagonal wrench.

[0010] Preferably, there are six movable plates in total, and the number of the secondary bevel gears and the number of the threaded rods are consistent with the number of the movable plates.

[0011] Preferably, the six movable plates are respectively parallel to the six side walls of the hexagonal socket on the connector.

[0012] Preferably, a knob is provided on the end of the rotating shaft passing through the base, and the knob is also provided with anti-slip grooves.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. The utility model utilizes the threads on the surface of the fastening bolts in the connecting assembly to connect with the probe, so as to improve the stability of the connection between the probe and the lead seat inside the base, and the lead seat is connected to the weld detector through a data cable. In this way, the fastening bolts can be used to achieve the stability of the connection between the probe and the weld detector, and the states of multiple fastening bolts in the connecting assembly can be adjusted at the same time, thereby improving the utilization efficiency of the overall structure.

[0015] 2. The present invention also adds a driving component and an auxiliary component on the base. Through a connector with a hexagonal socket, a wrench can be used to drive the fastening bolts. At the same time, the auxiliary component can adjust the size of the hexagonal socket on the connector to accommodate hexagonal wrenches of different sizes, thereby improving the applicability of the entire device and further improving the overall performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is an exploded view of the lead socket structure of the utility model;

[0018] Figure 3 This is a schematic cross-sectional view of the base structure of the utility model;

[0019] Figure 4 This is an exploded view of the square rod structure of the utility model;

[0020] Figure 5 This is a schematic diagram of the connection structure between the transmission ring gear and the first driven gear of the utility model;

[0021] Figure 6 This is a schematic diagram of the structure of the stop block and the elliptical block of the utility model;

[0022] Figure 7 This is a schematic diagram of the structure of the movable plate of the utility model;

[0023] Figure 8 This is a schematic cross-sectional view of the connector structure of the present invention;

[0024] Figure 9 This is a schematic diagram of the connection structure between the ring gear and the second driven gear of the utility model.

[0025] In the figure: 1. Weld detector; 2. Data cable; 3. Probe; 4. Base; 5. Drive assembly; 51. Connector; 52. Center shaft; 53. Friction block; 54. Stop block; 541. Slide plate; 55. Driving gear; 56. Rotating shaft; 57. Elliptical block; 58. Auxiliary spring; 6. Lead seat; 7. Connecting assembly; 71. Fastening bolt; 72. Fixing nut; 73. Transmission ring gear; 74. First driven gear; 75. Square rod; 76. Limit block; 8. Auxiliary assembly; 81. Movable plate; 82. Ring gear; 83. Threaded rod; 84. Secondary bevel gear; 85. Main bevel gear; 86. First connecting shaft; 87. Pulley set; 88. Second driven gear; 89. Second connecting shaft. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] See also Figure 1-9 The utility model provides a technical solution: a detection device for the weld of a wind turbine tower, comprising a weld detector 1, a probe 3 for detecting welds, a data line 2 and a lead seat 6 for transmitting information detected by the probe 3 into the weld detector 1, and a base 4 for realizing a quick connection between the probe 3 and the lead seat 6. The lead seat 6 is fixedly installed inside the base 4, and the lead seat 6 is also fixedly connected to the data line 2. The lead seat 6 is also plugged into the probe 3. A connecting component 7 and a driving component 5 are also provided on the base 4.

[0028] The connecting assembly 7 includes a fastening bolt 71 that can be threadedly connected to the probe 3, a fixing nut 72 fixedly installed inside the base 4, a transmission ring gear 73 rotatably set inside the base 4, a first driven gear 74 meshing with the transmission ring gear 73, a square rod 75 fixedly installed on the first driven gear 74, and a limit block 76 fixedly installed on the end of the square rod 75; the fastening bolt 71 is threadedly connected to the fixing nut 72, the square rod 75 is slidingly connected to the fastening bolt 71, the limit block 76 is located in the internal cavity of the fastening bolt 71, and annular tooth blocks for meshing are provided on the inner and outer rings of the transmission ring gear 73, and the transmission ring gear 73 is also meshed and connected with the driving gear 55. The transmission ring gear 73 designed in this way can improve the flexibility of the overall structure and ensure its linkage effect.

[0029] The driving assembly 5 includes a connecting head 51 rotatably set on the base 4, a central shaft 52 fixedly connected to the connecting head 51, a friction block 53 fixedly mounted on the central shaft 52, a stop block 54 slidably set inside the base 4, a slide plate 541 fixedly connected to the stop block 54, a rotating shaft 56 rotatably set on the base 4, an elliptical block 57 fixedly mounted on the end face of the rotating shaft 56, and an auxiliary spring 58 fixedly connected to the elliptical block 57 and the slide plate 541 at both ends respectively. A driving gear 55 is also fixedly mounted on the lower end face of the stop block 54; a friction pattern for enhancing the friction force between the stop block 54 and the friction block 53 is provided on the stop block 54, the elliptical block 57 is located above the auxiliary spring 58, and the arc surface of the elliptical block 57 is tangent to the slide plate 541; a hexagonal socket for cooperating with a hexagonal wrench is provided on the connecting head 51, and a knob is provided on the end of the rotating shaft 56 passing through the base 4. The knob is also provided with anti-slip patterns to prevent the user from slipping when rotating the rotating shaft 56.

[0030] The connecting head 51 is also provided with an auxiliary component 8, which includes a movable plate 81 slidably set on the connecting head 51, a ring gear 82 and a threaded rod 83 rotatably set on the connecting head 51, a secondary bevel gear 84 fixedly mounted on the end face of the threaded rod 83, a main bevel gear 85 meshing with the secondary bevel gear 84, a first connecting shaft 86 fixedly connected to the main bevel gear 85, a second driven gear 88 meshing with the ring gear 82, a second connecting shaft 89 fixedly mounted on the second driven gear 88, and a pulley group 87 for realizing transmission between the first connecting shaft 86 and the second connecting shaft 89. There are six movable plates 81 in total, and the number of secondary bevel gears 84 and the number of threaded rods 83 are consistent with the number of movable plates 81. The six movable plates 81 are respectively parallel to the six side walls of the hexagonal socket on the connecting head 51, so that the movable plate 81 can change the size of the internal socket of the connecting head 51, thereby expanding the scope of application of the overall device.

[0031] Working principle: When the probe 3 in the weld detector 1 needs to be replaced, insert the hexagonal wrench into the connector 51, rotate the swivel 56 on the base 4, and the elliptical block 57 fixed at the end of the swivel 56 rotates synchronously, pushing the slide 541 fixedly connected to the stop block 54 to slide downward, so that a gap is generated between the stop block 54 and the friction block 53. At this time, the central shaft 52 fixedly connected to the friction block 53 will rotate synchronously with the connector 51, and the driving gear 55 fixed at the other end of the central shaft 52 is also engaged with the transmission ring gear 73, and the transmission ring gear 73 is engaged with the first driven gear 74. The square rod 75 fixed on the first driven gear 74 is also slidably connected to the fastening bolt 71, and the fastening bolt 71 is threadedly connected to the fixing nut 72 fixed inside the base 4. Therefore, after the connector 51 is rotated, the central shaft 52, the driving gear 55, the transmission ring gear 73 and the first driven gear 74 are driven by the fixing nut 72, which drives the fastening bolt 71 to be unscrewed from the inside of the base 4 and then screwed into the inside of the probe 3 to complete the installation of the probe 3. By adjusting the rotation direction of the connector 51, the fastening bolt 71 can be unscrewed from the inside of the probe 3 to facilitate the replacement of the probe 3. Finally, the rotary shaft 56 is loosened, and the auxiliary spring 58 fixedly connected to the slide plate 541 and the base 4 at both ends respectively can push the stop block 54 and the slide plate 541 to slide toward the friction block 53 until the stop block 54 contacts the friction block 53. At this time, the friction pattern on the stop block 54 can generate a certain friction force with the friction block 53, thereby preventing the friction block 53 and the central shaft 52 from rotating abnormally, thereby improving the stability of the overall structure.

[0032] In actual application, when a hexagonal wrench does not match the size of the initial hole of the connector 51 and the size of the hole on the connector 51 needs to be adjusted, the ring gear 82 on the connector 51 is rotated. Because the ring gear 82 is engaged with the second driven gear 88, the second connecting shaft 89 fixed on the second driven gear 88 is connected to the first connecting shaft 86 through the pulley set 87, and the main bevel gear 85 fixed on the first connecting shaft 86 is engaged with the secondary bevel gear 84 fixed on the threaded rod 83. Therefore, the threaded rod 83 is driven by the structure. 3 will rotate synchronously with the rotation of the ring gear 82, and the movable plate 81 sliding inside the connecting head 51 is also threadedly connected to the threaded rod 83. Then, after the threaded rod 83 rotates, the movable plate 81 will slide inside the connecting head 51. There are six movable plates 81 on the connecting head 51, and there are also six sets of secondary bevel gears 84 and threaded rods 83. Then, after driving the ring gear 82 to rotate, the six movable plates 81 inside the connecting head 51 can be synchronously driven to slide, thereby changing the size of the hexagonal hole inside the connecting head 51 to accommodate hexagonal wrenches of different sizes.

[0033] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for detecting welds of a wind turbine tower, comprising a weld detector (1), a probe (3) for detecting welds, a data line (2) and a lead socket (6) for transmitting information detected by the probe (3) into the weld detector (1), and a base (4) for realizing a quick connection between the probe (3) and the lead socket (6), characterized in that: The lead seat (6) is fixedly installed inside the base (4), and the lead seat (6) is also fixedly connected to the data line (2). The lead seat (6) is also plugged into the probe (3). The base (4) is also provided with a connecting component (7) and a driving component (5); The connecting assembly (7) includes a fastening bolt (71) threadably connected to the probe (3), a fixing nut (72) fixedly mounted inside the base (4), a transmission ring gear (73) rotatably arranged inside the base (4), a first driven gear (74) meshed with the transmission ring gear (73), a square rod (75) fixedly mounted on the first driven gear (74), and a limit block (76) fixedly mounted on the end of the square rod (75); The driving assembly (5) comprises a connecting head (51) rotatably arranged on the base (4), a central shaft (52) fixedly connected to the connecting head (51), a friction block (53) fixedly mounted on the central shaft (52), a stop block (54) slidably arranged inside the base (4), a slide plate (541) fixedly connected to the stop block (54), a rotating shaft (56) rotatably arranged on the base (4), an elliptical block (57) fixedly mounted on the end surface of the rotating shaft (56), and an auxiliary spring (58) with two ends fixedly connected to the elliptical block (57) and the slide plate (541), respectively. A driving gear (55) is also fixedly mounted on the lower end surface of the stop block (54). The connecting head (51) is also provided with an auxiliary component (8), which includes a movable plate (81) slidably provided on the connecting head (51), a ring gear (82) and a threaded rod (83) rotatably provided on the connecting head (51), a secondary bevel gear (84) fixedly installed on the end face of the threaded rod (83), a main bevel gear (85) meshing with the secondary bevel gear (84), a first connecting shaft (86) fixedly connected to the main bevel gear (85), a second driven gear (88) meshing with the ring gear (82), a second connecting shaft (89) fixedly installed on the second driven gear (88), and a pulley group (87) for realizing transmission between the first connecting shaft (86) and the second connecting shaft (89).

2. The device for detecting welds of a wind turbine tower according to claim 1, characterized in that: The fastening bolt (71) is threadedly connected to the fixing nut (72), the square rod (75) is slidably connected to the fastening bolt (71), and the limiting block (76) is located in the inner cavity of the fastening bolt (71).

3. The device for detecting welds of a wind turbine tower according to claim 1, characterized in that: The inner ring and outer ring of the transmission gear ring (73) are both provided with annular gear blocks for meshing, and the transmission gear ring (73) is also meshed and connected with the driving gear (55).

4. The device for detecting welds of a wind turbine tower according to claim 1, characterized in that: The stop block (54) is provided with friction patterns for enhancing the friction force between the stop block (54) and the friction block (53).

5. The device for detecting welds of a wind turbine tower according to claim 1, characterized in that: The elliptical block (57) is located above the auxiliary spring (58), and the arc surface of the elliptical block (57) is tangent to the slide plate (541).

6. The device for detecting welds of a wind turbine tower according to claim 1, characterized in that: The connector (51) is provided with a hexagonal socket for cooperating with a hexagonal wrench.

7. The device for detecting welds of a wind turbine tower according to claim 6, characterized in that: There are six movable plates (81) in total, and the number of the secondary bevel gears (84) and the number of the threaded rods (83) are consistent with the number of the movable plates (81).

8. The device for detecting welds of a wind turbine tower according to claim 7, characterized in that: The six movable plates (81) are respectively parallel to the six side walls of the hexagonal socket on the connector (51).

9. The device for detecting welds of a wind turbine tower according to claim 1, characterized in that: A knob is provided on the end of the rotating shaft (56) passing through the base (4), and the knob is also provided with anti-slip grooves.

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