Adjustable rack vehicle for radiographic inspection of weld joints of wind power tower drum

Abstract

The utility model relates to the field of weld joint flaw detection, and discloses an adjustable rack car for wind power tower weld joint radiographic inspection, which comprises a rack car body, a fixer for fixing a radiographic flaw detector is arranged on a panel of the rack car body close to the front end, and after the radiographic flaw detector is fixed, a radiation window of the radiographic flaw detector exceeds the rack car body; a plurality of supporting rods are movably connected to the two sides of the panel in an inserted mode respectively, a directional wheel is arranged at the end, away from the trolley body, of each supporting rod, and locking screws are arranged on the panel relative to the supporting rods and used for locking the positions of the supporting rods. The two sides of the bottom of the panel are each provided with two length-adjustable supporting legs, and the bottom of each supporting leg is provided with a trundle. According to the utility model, the support rods with adjustable lengths are arranged on the frame body, the adjustment of the flaw detection height of the flaw detector is met, and meanwhile, the support rods with the directional wheels are arranged on the two sides of the panel, so that the support rods can be pulled out to enable the directional wheels to be in contact with the wall of the tower drum, the support of the flaw detector is realized, and the detection of circumferential welding seams of the tower drum is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of weld flaw detection, especially to an adjustable frame for wind power tower cylinder weld ray detection. BACKGROUND

[0002] At present, the detection of wind power tower cylinder weld is generally carried out by using a ray detector, and the ray detector is fixed in the wind power tower cylinder through a support device during detection, and the radiation window of the ray detector is aligned with the weld for detection. The detection process requires the detection personnel to move while holding the support device, and the detection flexibility is poor.

[0003] A wind power tower cylinder weld detection support is disclosed in Chinese patent application No. CN202122902054.5, filed on November 24, 2021, which solves the problem of poor detection flexibility. However, the applicant believes that this detection support has the following defects:

[0004] 1. During ray detection, the height of the ray detector needs to be adjusted according to the detection requirements. The above-mentioned detection support can only adjust the height by adjusting the included angle between the two side legs, which cannot meet the adjustment requirements of the detection height.

[0005] 2. For the circumferential weld of the wind power tower cylinder, the detection is generally carried out by rotating the wind power tower cylinder, and the ray detector moves relative to the wind power tower cylinder. The use of this detection support has the problem of inconvenient detection, and the detection difficulty is also great.

[0006] Therefore, the present application provides a wind power tower cylinder weld ray detection adjustable frame, which can adjust the height of the ray detector and facilitate the detection of the circumferential weld of the tower cylinder. SUMMARY

[0007] The utility model aims at solving the technical problems existing in the prior art. To this end, the utility model provides a wind power tower cylinder weld ray detection adjustable frame, which can adjust the height of the ray detector and facilitate the detection of the circumferential weld of the tower cylinder.

[0008] The technical solution adopted by the utility model to solve its technical problems is as follows:

[0009] A wind power tower cylinder weld ray detection adjustable frame is provided, which comprises a frame body. A fixing device for fixing a ray detector is arranged on the faceplate of the frame body near the front end. After the ray detector is fixed, its radiation window protrudes from the frame body. Two sides of the faceplate are respectively movably connected with a plurality of supporting rods. One end of each supporting rod away from the frame body is provided with a directional wheel. A locking screw is arranged on the faceplate opposite each supporting rod to lock the position of the supporting rod. Two adjustable length supporting legs are arranged on the bottom of each side of the faceplate. A foot wheel is arranged at the bottom of each supporting leg.

[0010] In some alternative embodiments, the fixer adopts a hoop assembly, which is composed of a plurality of hoops and a plurality of connecting rods arranged between adjacent two hoops.

[0011] In some alternative embodiments, the struts on the two sides of the panel are arranged in staggered manner.

[0012] In some alternative embodiments, the supporting leg comprises a fixed tube fixed to the bottom of the panel and a movable tube movably inserted into the bottom of the fixed tube.

[0013] In some alternative embodiments, the two supporting legs on the same side are provided with an adjusting assembly, which comprises a first connecting rod with two ends connected with the fixed tube, a second connecting rod with two ends connected with the movable tube, and an adjusting screw rod threaded through the first connecting rod and rotationally connected with the second connecting rod.

[0014] In some alternative embodiments, the top of the adjusting screw rod is provided with a hand wheel.

[0015] In some alternative embodiments, the casters adopt directional wheels or universal wheels capable of locking the direction.

[0016] In some alternative embodiments, the panel of the frame body is provided with a push handle at the end away from the fixer.

[0017] Compared with the prior art, the utility model has the beneficial effects that:

[0018] 1. The utility model discloses a supporting frame for a tower, which comprises a frame body, a fixer and a panel, wherein the frame body comprises a plurality of supporting legs, the fixer is arranged on the bottom of the frame body, and the panel is arranged on the top of the frame body.

[0019] 2. The height of the supporting leg is adjusted by the adjusting assembly, and the adjustment is convenient and fast. DRAWINGS

[0020] In order to more clearly illustrate the technical scheme in the embodiments of the utility model, the drawings needed to be used in the embodiment description will be briefly introduced, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without paying creative labor, wherein:

[0021] Figure 1 It is the front view of the adjustable frame trolley provided by the utility model;

[0022] Figure 2 It is Figure 1 The left view of the adjustable frame trolley provided by the utility model;

[0023] Figure 3 is the detection state diagram of the circumferential weld of the tower drum provided by the utility model.

[0024] In the drawings, the component list represented by each sign is as follows:

[0025] 1-frame body, 1.1-panel, 1.2-supporting leg, 1.2.1-fixed pipe, 1.2.2-movable pipe, 1.3-fixing device, 1.3.1-hoop, 1.3.2-connecting rod, 1.4-pushing handle, 1.5-castor, 2-supporting rod, 3-direction wheel, 4-locking screw, 5-adjusting assembly, 5.1-first connecting rod, 5.2-second connecting rod, 5.3-adjusting screw, 5.4-hand wheel, 10-ray detection instrument, 10.1-radiation window. DETAILED DESCRIPTION

[0026] It should be understood that the specific embodiments described herein merely exemplify the present application and do not limit the present application.

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described in the description of the embodiments of the present application in combination with the drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0028] In the description of the present application, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application;

[0029] In addition, the description of the terms "first", "second", etc. in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. The terms "mounting", "connection" and "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the connection between two elements inside. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0030] In addition, the technical solutions among the various embodiments can be combined with each other, but it must be based on the fact that a person skilled in the art can realize it, and when the combination of technical solutions appears contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist and is not within the protection scope required by the utility model.

[0031] Embodiment one

[0032] As shown in the accompanying Figure 1 and the accompanying Figure 2 , the embodiment provides an adjustable frame for wind power tower cylinder weld seam radiographic testing, which comprises a frame body 1, the frame body comprises a panel 1.1, two adjustable length support legs 1.2 arranged on both sides of the bottom of the panel, a fixer 1.3 arranged on the panel near the front end for fixing a radiographic detector 10 and a push handle 1.4 arranged on the panel away from the fixer; wherein the bottom of each support leg 1.2 is provided with a castor 1.5, the castor of the embodiment is a directional wheel or a universal wheel capable of locking the direction or the front end is provided with a directional wheel and the rear end is provided with a universal wheel capable of locking the direction. When detecting the linear weld seam of the tower cylinder, the direction of the universal wheel is locked to be consistent with the direction of the directional wheel.

[0033] Preferably, the setting position of the fixer 1.3 is that after the radiographic detector 10 is fixed, the radiation window 10.1 thereof exceeds the frame body 1, and specifically, as shown in the accompanying Figure 1 , the design position of the support leg at the bottom of the panel needs to be controlled to prevent it from interfering with the radiation.

[0034] The support leg 1.2 of the embodiment adopts an adjustable length support leg to meet the height adjustment of the detector. Preferably, the support leg 1.2 comprises a fixed tube 1.2.1 fixed to the bottom of the panel and a movable tube 1.2.2 movably connected to the bottom of the fixed tube, and the relative fixation of the fixed tube and the movable tube in the embodiment can be achieved by bolts, that is, before adjustment, the bolts are loosened, and after adjustment, the bolts are tightened.

[0035] In order to facilitate the detection of the circumferential weld seam of the tower cylinder, as shown in the accompanying Figure 1 and the accompanying Figure 2 , a plurality of support rods 2 are movably connected to both sides of the panel 1.1 in the embodiment, and the support rods on both sides of the panel are arranged in a staggered manner, and one end of each support rod 2 away from the frame body is provided with a directional wheel 3 for contacting the inner wall of the tower cylinder to form rolling friction between the support rod and the inner wall of the tower cylinder, and the panel 1.1 is provided with a locking screw 4 relative to each support rod, for locking the position of the support rod.

[0036] When detecting the circumferential weld seam of the tower cylinder, as shown in the accompanying Figure 3As shown, first, the length of the supporting legs is adjusted to make the ray flaw detector meet the required detection height, then the locking screw is loosened, the supporting rods on both sides of the panel are pulled out and the directional wheels are in contact with the cylinder wall, the locking screw is tightened, then the length of the supporting legs is shortened to separate the casters from the tower cylinder, at this time the flaw detector is supported by the supporting rods in the tower cylinder, when the tower cylinder slowly transports and rotates, the directional wheels rotate, and the frame body keeps the position under the action of the dead weight, thus the circumferential weld can be stably detected.

[0037] Embodiment two

[0038] On the basis of embodiment one, the holder 1.3 is designed as a hoop assembly in the embodiment, as shown in the accompanying drawings. Figure 1 The hoop assembly is composed of a plurality of hoops 1.3.1 and a plurality of connecting rods 1.3.2 arranged between adjacent two hoops, which makes the flaw detector quickly and stably fixed on the frame body.

[0039] Embodiment three

[0040] The difference from embodiment one or embodiment two is that the length of the supporting legs is adjusted by the adjusting assembly 5 in the embodiment, and the fixed tube and the movable tube do not need to be fixed by bolts. Figure 1 and the accompanying drawings. Figure 2 As shown in the accompanying drawings, the adjusting assembly 5 is arranged on the two supporting legs 1.2 on the same side of the panel 1.1, the adjusting assembly 5 comprises a first connecting rod 5.1 connected with the fixed tube 1.2.1 at both ends, a second connecting rod 5.2 connected with the movable tube 1.2.2 at both ends, and an adjusting screw 5.3 threaded through the first connecting rod 5.1 and rotationally connected with the second connecting rod 5.2.

[0041] Preferably, the top of the adjusting screw 5.3 is provided with a hand wheel 5.4, which is convenient for adjusting the length of the supporting legs by the hand wheel.

[0042] The above is only an embodiment of the present application, and does not limit the patent range of the present application, any equivalent structure or equivalent process transformation according to the content of the present application, or direct or indirect application in other related technical fields, are also included in the patent protection range of the present application.

Claims

1. An adjustable carriage for wind turbine tower weld radiographic testing, comprising a carriage body, characterized in that: The panel of the vehicle rack body is provided with a fixer near the front end for fixing a radiographic detector, and the radiation window of the radiographic detector exceeds the vehicle rack body after being fixed; Two sides of the panel are respectively movably inserted with a plurality of supporting rods, one end of each supporting rod away from the vehicle rack body is provided with a directional wheel, and the panel is provided with a locking screw opposite each supporting rod for locking the position of the supporting rod; Two sides of the bottom of the panel are respectively provided with two supporting legs with adjustable length, and the bottom of each supporting leg is provided with a castor.

2. The adjustable dolly of claim 1, wherein: The fixer adopts a hoop assembly, and the hoop assembly is composed of a plurality of hoops and a plurality of connecting rods arranged between adjacent two hoops.

3. The adjustable dolly of claim 1, wherein: The supporting rods on two sides of the panel are arranged in a staggered manner.

4. The adjustable dolly of claim 1, wherein: The supporting leg comprises a fixed tube fixed to the bottom of the panel and a movable tube movably inserted into the bottom of the fixed tube.

5. The adjustable dolly of claim 4, wherein: Two supporting legs on the same side are provided with an adjusting assembly, the adjusting assembly comprises a first connecting rod connected at two ends with the fixed tube, a second connecting rod connected at two ends with the movable tube, and an adjusting screw threadedly penetrating the first connecting rod and rotationally connected with the second connecting rod.

6. The adjustable dolly of claim 5, wherein: The top of the adjusting screw is provided with a hand wheel.

7. The adjustable dolly of claim 1, wherein: The castor adopts a directional wheel or a universal wheel capable of locking the direction.

8. The adjustable dolly of claim 1, wherein: The panel of the vehicle rack body is provided with a push handle away from the fixer.

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