Scanning auxiliary device for eddy current detection under condition that fillet weld of column leg of spherical tank is painted

Abstract

The utility model discloses a scanning auxiliary device for eddy current detection under the condition that a fillet weld of a column leg of a spherical tank is painted, the scanning auxiliary device comprises a shell, a rectangular groove is formed in the upper end of the shell, a transverse plate is arranged in the rectangular groove, and a sliding groove is formed in the upper end of the transverse plate; the limiting mechanism comprises a motor installed on the right side of the transverse plate, an output shaft of the motor extends into the sliding groove and is fixedly connected with a two-way threaded rod, the two threaded ends of the two-way threaded rod are both in threaded connection with sliding blocks, and the upper ends of the two sliding blocks both penetrate through the sliding groove and are fixedly connected with clamping strips; and the lifting mechanism is used for moving the transverse plate up and down, the lower end of the right side of the shell is fixedly connected with a supporting plate, and two moving wheels are installed at the lower end of the left side of the shell. The auxiliary device facilitates the movement of the detector, and can protect the detector when the detector is not used, so that the detector is prevented from being damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of dental comprehensive treatment machines, in particular to a scanning auxiliary device for eddy current detection under the condition of the fillet weld of the spherical tank column leg with paint. Background Technique

[0002] The petrochemical industry belongs to a high-risk industry. 80% of the process media in the pressure-bearing equipment of the device are dangerous chemicals, which are high-temperature, high-pressure, inflammable and explosive. The safety control of the device site is becoming stricter and more refined. Before implementing the surface penetration testing (PT) technology, the surface grinding work of the column leg welds of the pressure-bearing equipment in operation on site brings great risks to the on-site safety control, such as the risk of equipment leakage, the risk of sparks generated by on-site grinding, and the risk of unsafe behaviors of personnel during grinding.

[0003] In the prior art, an eddy current detection method under the condition of the spherical tank column leg with paint is adopted for detection. The main detection tools are an eddy current detector and a detection probe. When in use, the staff carry the eddy current detector to the detection position and then perform detection through the probe. The existing eddy current detector is generally a box structure, which is relatively heavy to carry directly. And during the detection process, in order to facilitate the observation of detection data, a table body is added to place the detector, and the overall operation is relatively cumbersome. Content of the Utility Model

[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art, and to propose a scanning auxiliary device for eddy current detection under the condition of the fillet weld of the spherical tank column leg with paint. This auxiliary device facilitates the movement of the detector, and when not in use, it can also protect the detector to avoid damage to the detector.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A scanning auxiliary device for eddy current detection under the condition of the fillet weld of the spherical tank column leg with paint, including a housing. A rectangular groove is opened at the upper end of the housing, a cross plate is arranged in the rectangular groove, and a chute is opened at the upper end of the cross plate; a limiting mechanism, the limiting mechanism includes a motor installed on the right side of the cross plate, the output shaft of the motor extends into the chute and is fixedly connected with a bidirectional threaded rod, both threaded ends of the bidirectional threaded rod are threadedly connected with sliders, and the upper ends of the two sliders penetrate through the chute and are fixedly connected with clamping strips; a lifting mechanism, the lifting mechanism is used to move the cross plate up and down.

[0007] Preferably, a support plate is fixedly connected to the lower right end of the housing, and two moving wheels are installed at the lower left end of the housing.

[0008] Preferably, a pull handle is fixedly connected to the upper left end of the housing.

[0009] Preferably, the lifting mechanism includes two electric telescopic rods symmetrically installed at the bottom of the rectangular groove, and the telescopic ends of the two electric telescopic rods are fixedly connected to the lower end of the cross plate.

[0010] Preferably, jack holes are provided at the upper end of the cross plate.

[0011] Preferably, four connecting columns are fixedly connected to the upper end of the cross plate, and the upper ends of the four connecting columns are jointly and fixedly connected to a top plate.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] The scanning auxiliary device can act as a placement rack, and the overall movement is relatively simple, facilitating the operation of the staff. In addition, when not in use, the wire body connecting the detector and the detection probe can be wound around one of the connecting columns, and then the detection probe is inserted into the jack hole. The electric telescopic rod is started to move the cross plate downward, so that finally the top plate is located at the notch of the rectangular groove. At this time, the detector is completely located in the rectangular groove, achieving a good protection effect. Description of the Drawings

[0014] Figure 1 is a schematic structural diagram of a scanning auxiliary device for eddy current detection of spherical tank column leg fillet welds under the condition of being painted;

[0015] Figure 2 is Figure 1 a schematic cross-sectional view of

[0016] Figure 3 is Figure 2 an enlarged view of part A of

[0017] In the figure: 1 housing, 2 support plate, 3 moving wheels, 4 pull handle, 5 rectangular groove, 6 cross plate, 7 jack hole, 8 connecting column, 9 top plate, 10 motor, 11 clamping strip, 12 electric telescopic rod, 13 chute, 14 bidirectional threaded rod, 15 slider. Detailed Embodiments

[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0019] Referring to Figures 1-3 , a scanning auxiliary device for eddy current detection of spherical tank column leg fillet welds under the condition of being painted, includes a housing 1. A rectangular groove 5 is provided at the upper end of the housing 1. A cross plate 6 is arranged in the rectangular groove 5. A chute 13 is provided at the upper end of the cross plate 6. A support plate 2 is fixedly connected to the lower right end of the housing 1. Two moving wheels 3 are installed at the lower left end of the housing 1. A pull handle 4 is fixedly connected to the upper left end of the housing 1;

[0020] Among them, a limiting mechanism is further included. The limiting mechanism includes a motor 10 installed on the right side of the cross plate 6. The motor 10 is a servo motor capable of changing the rotation direction. The output shaft of the motor 10 extends into the chute 13 and is fixedly connected to a bidirectional threaded rod 14. Both threaded ends of the bidirectional threaded rod 14 are threadedly connected with sliders 15. The upper ends of the two sliders 15 penetrate through the chute 13 and are fixedly connected with clamping strips 11;

[0021] Among them, a lifting mechanism is further included. The lifting mechanism is used to move the cross plate 6 up and down. The lifting mechanism includes two electric telescopic rods 12 symmetrically installed at the bottom of the rectangular groove 5. The telescopic ends of the two electric telescopic rods 12 are fixedly connected to the lower end of the cross plate 6. A jack 7 is opened at the upper end of the cross plate 6;

[0022] Among them, four connecting columns 8 are fixedly connected to the upper end of the cross plate 6. The upper ends of the four connecting columns 8 are jointly fixedly connected to a top plate 9.

[0023] In the present utility model, the detector is placed on the upper end of the cross plate 6, and then the two motors 10 are started. The start of the motors 10 will drive the bidirectional threaded rod 14 to rotate, so that the two sliders 15 move relative to each other. By using the two clamping strips 11, the detector can be clamped and limited. Then, the wire body connected to the detector and the detection probe is wound around one of the connecting columns 8. Finally, the detection probe is inserted into the jack 7, and the electric telescopic rod 12 is started to move the cross plate 6 downward, so that finally the top plate 9 is located at the notch of the rectangular groove 5. At this time, the detector is completely located in the rectangular groove 5, which plays a good protection effect;

[0024] Then, pull the handle 4 by hand to make the whole device inclined, similar to a suitcase, and then pull the whole device to move. Move it to the detection location and restore the housing 1 to the vertical state, then the whole device can be in a stable support state. Start the electric telescopic rod 12, and the cross plate 6 can be restored Figure 1 to its position. Then, take out the detection probe and unwind the wire body, and then the detection can be carried out. The actual height of the cross plate 6 can be adjusted according to actual needs to facilitate observing the detection results.

[0025] The above is only a preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present utility model.

Claims

1. Eddy current testing scanning auxiliary device for spherical tank column leg fillet weld under painted condition, characterized in that, Comprising: A housing (1), at the upper end of the housing (1) there is a rectangular groove (5), inside the rectangular groove (5) there is a horizontal plate (6), and on the upper end of the horizontal plate (6) there is a sliding groove (13); A limiting mechanism, the limiting mechanism includes a motor (10) installed on the right side of the horizontal plate (6), the output shaft of the motor (10) extends into the sliding groove (13), and is fixedly connected to a bidirectional threaded rod (14), both threaded ends of the bidirectional threaded rod (14) are threadedly connected with sliders (15), the upper ends of the two sliders (15) penetrate through the sliding groove (13), and are fixedly connected with clamping strips (11); A lifting mechanism, the lifting mechanism is used to move the horizontal plate (6) up and down.

2. The scanning auxiliary device for eddy current testing under the condition of the spherical tank column leg fillet weld with paint according to claim 1, wherein, At the lower right end of the housing (1) there is a fixedly connected support plate (2), and at the lower left end of the housing (1) there are two moving wheels (3) installed.

3. The scanning auxiliary device for eddy current testing under the condition of the spherical tank column leg fillet weld with paint according to claim 1, characterized in that, At the upper left end of the housing (1) there is a fixedly connected pull handle (4).

4. The scanning auxiliary device for eddy current testing under the condition of the spherical tank column leg fillet weld with paint according to claim 1, characterized in that, The lifting mechanism includes two electric telescopic rods (12) symmetrically installed at the bottom of the rectangular groove (5), and the telescopic ends of the two electric telescopic rods (12) are fixedly connected to the lower end of the horizontal plate (6).

5. The scanning auxiliary device for eddy current testing under the condition of the spherical tank column leg fillet weld with paint according to claim 1, wherein, On the upper end of the horizontal plate (6) there is a jack (7).

6. The scanning auxiliary device for eddy current testing under the condition of painted fillet welds of spherical tank column legs according to claim 1, wherein, On the upper end of the horizontal plate (6) there are four connecting columns (8) fixedly connected, and the upper ends of the four connecting columns (8) are jointly fixedly connected to a top plate (9).

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