Auxiliary mechanism for constant-speed movement of detection probe of pulsed eddy current storage tank

Abstract

The utility model belongs to the technical field of chemical storage tank detection, and particularly relates to an auxiliary mechanism for constant-speed movement of a pulsed eddy current storage tank detection probe, which comprises a support main body, the support main body comprises an internally-penetrating telescopic guide rail, damping constant-speed devices are arranged on the support main body, a constant-speed area is arranged between the damping constant-speed devices, and the damping constant-speed devices are arranged in the constant-speed area. The damping constant-speed device comprises a constant-speed area, a pan-tilt connecting device is arranged in the constant-speed area, a pulsed eddy current probe is arranged at the bottom of the pan-tilt connecting device, the damping constant-speed device comprises damping boxes, damping adjusting knobs are arranged on the damping boxes, the pan-tilt connecting device comprises a pan-tilt carrier, and a synchronous gear is arranged at the bottom of the pan-tilt carrier. According to the auxiliary mechanism for the constant-speed movement of the detection probe of the pulsed eddy current storage tank, the constant-speed movement of the pulsed eddy current probe is realized through the meshing transmission of the synchronous gear and the synchronous belt and the adjustment of the friction coefficient between the synchronous gear and the synchronous belt and the rotation damping adjustment knob on the damping box.

Description

TECHNICAL FIELD

[0001] The utility model relates to chemical industry storage tank detection technical field especially, a kind of auxiliary mechanism of uniform motion of pulsed eddy current storage tank detection probe. BACKGROUND

[0002] Pulsed eddy current technology is widely applied in petroleum and chemical industry field in recent years, especially, eddy current detection process is fast, detection result is clear and corrosion condition is displayed clearly, which is a positive supplement to the corrosion management of petroleum and chemical production industry, can effectively control the corrosion condition of entire equipment, prevent and handle in advance, avoid the emergence of accident and hidden danger. Due to the advancement and practicality of its technology, the technical popularization and application and technology development of pulsed eddy current gradually increase, and gradually expand to the detection of storage layer with coating layer.

[0003] Pulsed eddy current technology belongs to nondestructive testing field, and is a kind of measurement mode that can be used for online detection of pipeline, tank body, tower body and the like. In detection, the performance, temperature, state and the like of internal medium will not affect detection result. And pulsed eddy current technology can realize line scanning and surface scanning, improve the entire working efficiency, and has good technical features in measurement accuracy and reproducibility.

[0004] Pulsed eddy current technology has been widely applied in refining, chemical industry, power plant, nuclear industry and the like, but in pulsed eddy current detection of storage tank, container and the like equipment in refining and petrochemical industry, when measuring by manually operating pulsed eddy current probe, the speed of pulsed eddy current detection probe is difficult to control during detection, and the detection speed is non-uniform speed detection, which can easily lead to inaccurate detection result. CONTENT OF THE UTILITY MODEL

[0005] In order to overcome the defects of prior art as mentioned above, the present inventors have made in-depth research, and after paying a lot of creative labor, the utility model is completed.

[0006] Specifically, the technical problem to be solved by the utility model is to provide a kind of auxiliary mechanism of pulsed eddy current storage tank detection probe uniform motion, to solve the technical problem that the speed of pulsed eddy current detection probe is difficult to control during detection when measuring by manually operating pulsed eddy current probe, the detection speed is non-uniform speed detection, which can easily lead to inaccurate detection result.

[0007] To solve the above technical problems, the utility model provides the following technical scheme:

[0008] The utility model provides an auxiliary mechanism of uniform motion of impulse eddy current storage tank detection probe, including support main part, the support main part includes the inner wear telescopic guide rail of symmetrical distribution and parallel arrangement, and is equipped with the damping uniform velocity device for controlling the removal speed on the support main part, is equipped with the uniform velocity area for detecting between the damping uniform velocity device, is equipped with the cloud platform connecting device of sliding connection between the inner wear telescopic guide rail through the damping uniform velocity device in the uniform velocity area, and the bottom of cloud platform connecting device is equipped with the impulse eddy current probe for detecting storage tank,

[0009] The damping uniform velocity device includes damping boxes, which are symmetrically distributed at both ends of the inner wear telescopic guide rail, connected by synchronous belts, and each provided with a damping adjustment knob on the damping box for adjusting the damping force of the synchronous belt.

[0010] The cloud platform connecting device includes a cloud platform carrier slidingly connected to the inner wear telescopic guide rail and located between the damping boxes, and the bottom of the cloud platform carrier is provided with a synchronous gear engaged with the synchronous belt.

[0011] As an improved technical solution, the inner wear telescopic guide rail is composed of an inner shaft body and an outer shaft body, and the inner shaft body is intermittently connected with the outer shaft body. The inner shaft body extends to one end outside the outer shaft body and is fixedly connected to the damping box.

[0012] As an improved technical solution, the two ends of the inner wear telescopic guide rail are also movably connected with symmetrically distributed adjustment legs, and one end of the inner wear telescopic guide rail is also provided with a leg fixing knob for limiting the angle of the adjustment leg.

[0013] As an improved technical solution, the end of the adjustment leg away from the inner wear telescopic guide rail is respectively provided with a magnetic attraction part and a suction cup part, and the magnetic attraction part and the suction cup part are one-to-one corresponding.

[0014] As an improved technical solution, the four corners of the cloud platform carrier are each provided with symmetrically distributed circular arc wheels, and each of the circular arc wheels is provided with a circular arc surface matched with the inner wear telescopic guide rail.

[0015] As an improved technical solution, the bottom of the cloud platform carrier is also fixedly installed with a universal joint, and the impulse eddy current probe is connected to the end of the universal joint away from the cloud platform carrier.

[0016] After adopting the above technical solution, the utility model has the beneficial effects that:

[0017] 1. The utility model realizes the uniform motion of the impulse eddy current probe through the meshing transmission of the synchronous gear and the synchronous belt and the adjustment of the friction coefficient by the rotating damping adjustment knob on the damping box. Whether the device is in a vertical, inclined or horizontal state, the stable detection of the probe can be ensured, and the detection efficiency and the reliability of the results are improved.

[0018] 2. The utility model discloses a combination design of magnetic attraction part and sucking disc part, realizes the stable fixation to ferromagnetic and non-ferromagnetic storage tank, and the adjustable supporting leg and supporting leg fixed knob can adapt to the storage tank surface of different shapes and inclination angles, ensure the stability of the device in complex detection environment.

[0019] 3. The utility model discloses a circular arc surface that can cover the whole inner wear telescopic guide rail is arranged in the circular arc wheel, can ensure the contact with the inner wear telescopic guide rail in the diameter change range of inner wear telescopic guide rail, so that the cloud platform carrier with pulse eddy current probe can move normally. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme of the utility model embodiment, the following will be to the embodiment description needed to use the drawing briefly introduced, obviously, the following description in the drawing is only some embodiments of the utility model, for the ordinary skilled person in the art, under the premise of not paying the creative labor, still can obtain other drawings according to these drawings. Wherein:

[0021] Fig. 1 It is the three-dimensional structure schematic diagram of the auxiliary mechanism of the utility model pulse eddy current storage tank detection probe uniform speed movement.

[0022] Fig. 2 It is the support main body and damping uniform speed device cooperation installation structure schematic diagram of the auxiliary mechanism of the utility model pulse eddy current storage tank detection probe uniform speed movement.

[0023] Fig. 3 It is the support main body and cloud platform connecting device cooperation structure schematic diagram of the auxiliary mechanism of the utility model pulse eddy current storage tank detection probe uniform speed movement.

[0024] BRIEF DESCRIPTION OF DRAWINGS

[0025] 1, support main body;101, inner wear telescopic guide rail;1011, supporting leg fixed knob;102, adjustable supporting leg;1021, magnetic attraction part;1022, sucking disc part;2, damping uniform speed device;201, damping box;202, damping adjustment knob;203, synchronous belt;3, uniform speed area;4, cloud platform connecting device;401, cloud platform carrier;4011, circular arc wheel;4012, synchronous gear;402, universal joint;5, pulse eddy current probe. DETAILED DESCRIPTION

[0026] Clearly, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0027] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications will also change accordingly.

[0028] Meanwhile, "and / or" or "and / or" appearing throughout the text means including three schemes, taking "A and / or B" as an example, including A scheme, or B scheme, or A and B schemes are satisfied at the same time.

[0029] In addition, in the present application, the description such as "first", "second" and the like 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", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skill in the art, 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, nor within the scope of protection required by the present application.

[0030] For example, Figs. 1 to 3As shown in the embodiment, the pulse eddy current storage tank detection probe uniform motion auxiliary mechanism comprises a support main body 1, the support main body 1 comprises inner penetrating telescopic guide rails 101 which are symmetrically distributed and arranged in parallel with each other, and the support main body 1 is provided with damping uniform speed devices 2 for controlling the moving speed, the damping uniform speed devices 2 are provided with uniform speed zones 3 for detection, the uniform speed zones 3 are provided with gimbal connecting devices 4 which are slidingly connected between the inner penetrating telescopic guide rails 101 through the damping uniform speed devices 2, and the bottom of the gimbal connecting devices 4 is provided with pulse eddy current probes 5 for detecting storage tanks, the damping uniform speed devices 2 comprise damping boxes 201 which are symmetrically distributed at the two ends of the inner penetrating telescopic guide rails 101, the damping boxes 201 are connected through synchronous belts 203, and the damping boxes 201 are all provided with damping adjustment knobs 202 for adjusting the damping force of the synchronous belts 203, the gimbal connecting devices 4 comprise gimbal carriers 401 which are slidingly connected on the inner penetrating telescopic guide rails 101 and located between the damping boxes 201, and the bottom of the gimbal carriers 401 is provided with synchronous gears 4012 which are meshed and connected with the synchronous belts 203, the support main body 1, the damping uniform speed devices 2 and the gimbal connecting devices 4 jointly constitute the auxiliary mechanism, and are mainly applied to storage tank body detection or long-distance pipeline, the number of the damping boxes 201 is two, and the damping force of the synchronous belts 203 can be adjusted by rotating the damping adjustment knobs 202, and the gimbal carriers 401 are meshed and connected with the synchronous belts 203 through the synchronous gears 4012, so that when the gimbal carriers 401 slide in the uniform speed zones 3 constituted by the inner penetrating telescopic guide rails 101, the pulse eddy current probes 5 connected with the gimbal carriers 401 move at a uniform speed by adjusting the friction coefficient of the synchronous gears 4012 and the synchronous belts 203, so as to meet the detection requirements.

[0031] The inner penetrating telescopic guide rail 101 is composed of an inner shaft body and an outer shaft body, and the inner shaft body is intermittently matched with the outer shaft body, the inner shaft body is fixedly connected on the damping box 201 at one end extending out of the outer shaft body, the inner penetrating telescopic guide rail 101 adopts the inner penetrating telescopic mode, the telescopic length is more than 500 mm, and theoretically can be telescopic infinitely long, and considering the actual operation distance, the telescopic length is generally controlled within 3 meters.

[0032] The two ends of the inner penetrating telescopic guide rail 101 are also movably connected with symmetrically distributed adjusting legs 102, and one end of the inner penetrating telescopic guide rail 101 is also provided with a leg fixing knob 1011 for limiting the angle of the adjusting leg 102, the number of the adjusting legs 102 is four, and the adjusting legs 102 can be independently adjusted in angle and fixed by the leg fixing knob 1011, so as to adapt to different detection positions.

[0033] The adjusting legs 102 are respectively provided with magnetic attraction parts 1021 and suction disc parts 1022 away from one end of the inner penetrating telescopic guide rail 101, and the magnetic attraction parts 1021 and the suction disc parts 1022 correspond to each other. The design of the magnetic attraction parts 1021 and the suction disc parts 1022 enables the coexistence of vacuum adsorption and magnetic adsorption, can adapt to ferromagnetic protective layers and non-ferromagnetic protective layers, and has a wide range of use.

[0034] The four corners of the holder 401 are respectively provided with symmetrically distributed circular arc wheels 4011, and the circular arc wheels 4011 are respectively provided with circular arc surfaces matched with the inner penetrating telescopic guide rail 101. The holder 401 is in contact with the inner penetrating telescopic guide rail 101 through the four circular arc wheels 4011. When the holder 401 moves, the circular arc wheels 4011 rotate. The radius of the circular arc wheels 4011 is slightly larger than that of the inner penetrating telescopic guide rail 101, and the circular arc wheels 4011 can cover the entire inner penetrating telescopic guide rail 101 through the circular arc surfaces, so that the inner penetrating telescopic guide rail 101 can be fully contacted when the diameter of the inner penetrating telescopic guide rail 101 changes within 5mm, and the holder 401 can move normally.

[0035] The holder 401 is further provided with a universal joint 402 fixedly installed at the bottom of the holder 401. The pulse eddy current probe 5 is connected to one end of the universal joint 402 away from the holder 401. The holder 401 can carry a camera, a strong light flashlight and the like. The pulse eddy current probe 5 is carried by the universal joint 402 at the lower part.

[0036] In use, according to the material, shape and detection requirement of the detected storage tank, a suitable pulse eddy current probe 5 is selected. The pulse eddy current probe 5 is a core component for detection, and its performance directly affects the accuracy of the detection result. The selected pulse eddy current probe 5 is connected to the bottom of the holder 401 through the universal joint 402. The design of the universal joint 402 can ensure that the probe is adjusted in multiple dimensions to adapt to different detection angles and positions.

[0037] According to the weight of the selected probe and the detection requirement, the damping force of the damping uniform speed device 2 is adjusted through the damping adjustment knob 202, and the range of the uniform speed zone 3 is adjusted through the telescopic function of the inner penetrating telescopic guide rail 101 to adapt to pipes or tank bodies of different lengths. The auxiliary device is placed or attached to the surface of the detected storage tank. For the storage tank of ferromagnetic material, the magnetic attraction part 1021 and the suction disc part 1022 can be used for fixation at the same time. For the storage tank of non-ferromagnetic material, only the suction disc part 1022 is used for fixation. The adjusting leg 102 adjusts the angle through the leg fixing knob 1011 to adapt to the surface of the storage tank of different shapes and inclination angles.

[0038] The position of the pulsed eddy current probe 5 is adjusted by the adjusting legs 102 and the universal joint 402, so as to ensure that the probe is kept at a distance of 1mm to 10mm from the surface of the storage tank, and the device can meet the distance of 50mm to 100mm from the detection position of the storage tank to the pulsed eddy current probe 5, and different pulsed eddy current probes 5 are matched to ensure that the pulsed eddy current probe 5 moves at a constant speed by adjusting the friction coefficient, so as to meet the detection requirements, and the measurement of the pulsed eddy current probe 5 needs the detection position of the storage tank, and the distance between the probe and the detection position of the storage tank is not more than 10mm;

[0039] When the device is vertically or the working angle is greater than 45°, the pulsed eddy current probe 5 is driven by the gravity of the device, and the uniform motion of the gimbal carrier 401 along the inner penetrating telescopic guide rail 101 is ensured by the meshing of the synchronous gear 4012 and the synchronous belt 203 and the damping effect;

[0040] When the device is horizontally placed or the inclination angle is less than 45°, the auxiliary pulsed eddy current probe 5 can be manually pushed to drive, and the relative uniform motion of the gimbal carrier 401 along the inner penetrating telescopic guide rail 101 is ensured by the meshing of the synchronous gear 4012 and the synchronous belt 203.

[0041] After the detection is completed, the device is moved away from the surface of the storage tank by adjusting the legs 102 and the universal joint 402, the magnetic attraction part 1021 or the suction cup part 1022 is loosened, and the disassembly of the device is completed.

[0042] It should be understood that the use of these embodiments is only for illustrating the present application and is not intended to limit the protection scope of the present application. In addition, it should also be understood that after reading the technical content of the present application, those skilled in the art can make various changes, modifications and / or variations to the present application, and all these equivalent forms also fall within the protection scope defined by the appended claims of the present application.

Claims

1. An auxiliary mechanism for uniform motion of a pulsed eddy current storage tank inspection probe, characterized by: The application relates to a support body (1) which comprises symmetrically distributed and mutually parallel inner penetrating telescopic guide rails (101), and the two ends of the support body (1) are provided with damping uniform speed devices (2) for controlling moving speed, the damping uniform speed devices (2) are provided with an uniform speed area (3) for detection between the two devices, the uniform speed area (3) is provided with a holder connecting device (4) which is slidably connected between the inner penetrating telescopic guide rails (101) through the damping uniform speed devices (2), and the bottom of the holder connecting device (4) is provided with a pulse eddy current probe (5) for detecting a storage tank. The damping uniform speed device (2) comprises a damping box (201), the damping boxes (201) are symmetrically distributed at the two ends of the inner penetrating telescopic guide rails (101), the damping boxes (201) are connected through synchronous belts (203) between the two boxes, and the damping boxes (201) are all provided with damping adjustment knobs (202) for adjusting damping force of the synchronous belts (203). The holder connecting device (4) comprises a holder carrier (401) which is slidably connected on the inner penetrating telescopic guide rails (101) and located between the damping boxes (201), and the bottom of the holder carrier (401) is provided with synchronous gears (4012) which are meshed and connected with the synchronous belts (203).

2. The uniform motion auxiliary mechanism for a pulsed eddy current tank inspection probe according to claim 1, characterized in that: The inner penetrating telescopic guide rail (101) is composed of an inner shaft body and an outer shaft body, the inner shaft body is intermittently matched with the outer shaft body, and the inner shaft body is fixedly connected on the damping box (201) at one end extending out of the outer shaft body.

3. The impulse eddy current storage tank inspection probe uniform motion auxiliary mechanism of claim 2, wherein: The two ends of the inner penetrating telescopic guide rail (101) are also movably connected with symmetrically distributed adjusting legs (102), and one end of the inner penetrating telescopic guide rail (101) is also provided with a leg fixing knob (1011) for limiting the angle of the adjusting leg (102).

4. The impulse eddy current storage tank inspection probe uniform motion auxiliary mechanism of claim 3, wherein: The one end of the adjusting leg (102) away from the inner penetrating telescopic guide rail (101) is respectively provided with a magnetic attraction part (1021) and a suction disc part (1022), and the magnetic attraction part (1021) and the suction disc part (1022) are one-to-one corresponding.

5. The impulse eddy current storage tank inspection probe uniform motion assist mechanism of claim 1, wherein: The four corners of the holder carrier (401) are all provided with symmetrically distributed circular arc wheels (4011), and the circular arc wheels (4011) are all provided with circular arc surfaces matched with the inner penetrating telescopic guide rails (101).

6. The impulse eddy current storage tank inspection probe uniform motion auxiliary mechanism of claim 5, wherein: The bottom of the holder carrier (401) is also fixedly installed with a universal joint (402), and the pulse eddy current probe (5) is connected at the one end of the universal joint (402) away from the holder carrier (401).

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