Stable tube panel scanning device

Abstract

The utility model relates to a stable tube panel scanning device which comprises a telescopic control rod, an equipment host connected to the front end of the telescopic control rod and a measuring mechanism connected to the front end of the equipment host, and a control mechanism used for controlling the equipment host and the measuring mechanism to measure the depth is arranged on the telescopic control rod in a sliding mode. The control mechanism comprises a positioning piece movably connected to the telescopic control rod, a sliding assembly connected to the telescopic control rod in a sliding mode and a clamping positioning assembly connected to the sliding assembly, and the clamping positioning assembly is in sliding contact with a tube body on the edge of the tube panel. According to the device disclosed by the invention, the stability of the tube panel scanning device in the measurement moving process can be ensured, the falling of the tube panel scanning device or the deviation of the measurement position caused by factors such as hand slip of measurement personnel can be avoided, and the stability and the accuracy of measurement are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of nondestructive testing technology, in particular to a stable tube screen scanning device. BACKGROUND

[0002] The tube screen scanning device is a device specially used for detecting the tube screen area of key components such as the water wall, low-temperature reheater and economizer of a thermal power boiler. Using the scanning device for anti-abrasion and anti-explosion inspection can overcome the shortcomings of measuring tools, greatly improve the detection speed and reduce the investment of detection personnel under the premise of meeting the accuracy. Without polishing, the scanning device can quickly complete ultrasonic thickness measurement, appearance video inspection and pipe creep inspection of a large area of tube screen, and can simultaneously save the appearance video and thickness data for convenient later verification. It is a great change in anti-abrasion and anti-explosion inspection technology, and provides a powerful guarantee for the safe operation of the boiler.

[0003] In the related art, the tube screen scanning device needs to be moved above the measured tube screen by the measuring personnel holding the tube screen scanning device, and the whole device is located between the gaps of the tube screen. Since the tube screen scanning device lacks effective anti-falling measures, the tube screen scanning device is easily dropped into the gap of the tube screen due to the hand slip of the measuring personnel, causing interruption of measurement, even damage of the tube screen scanning device, and affecting the efficiency of tube screen scanning. CONTENT OF THE INVENTION

[0004] The purpose of the present application is to provide a stable tube screen scanning device which can ensure the stability of the tube screen scanning device during measurement and movement, and will not cause the tube screen scanning device to fall or the measurement position to deviate due to hand slip of the measuring personnel, thereby improving the stability and accuracy of measurement.

[0005] The stable tube screen scanning device provided by the present application adopts the following technical solution:

[0006] A stable tube screen scanning device, comprising a telescopic control rod, a device host connected to the front end of the telescopic control rod, and a measuring mechanism connected to the front end of the device host, a control mechanism for controlling the measuring depth of the device host and the measuring mechanism is slidably arranged on the telescopic control rod, the control mechanism comprises a positioning piece movably connected to the telescopic control rod, a sliding assembly slidably connected to the telescopic control rod, and a clamping and positioning assembly connected to the sliding assembly, and the clamping and positioning assembly is slidably contacted on the pipe body at the edge of the tube screen.

[0007] By adopting the technical scheme, when the tube screen scanning device is used, the measuring mechanism is inserted into the tube screen, the position of the positioning member on the telescopic control rod is adjusted according to the measured depth, then the sliding assembly and the clamping positioning assembly are moved, the sliding assembly is clamped on the positioning member, and the clamping positioning assembly is clamped on the pipe body at the edge of the tube screen. During the transverse movement of the measuring mechanism, the clamping positioning assembly can play the role of axial positioning and movement guiding, thereby avoiding the tube screen scanning device from falling or the measurement position from deviating due to human factors.

[0008] Preferably, the telescopic control rod comprises at least two single pipes which are connected in an axial sleeve manner, a threaded hole which is perpendicular to the central axis is arranged on each single pipe, and the positioning member is a screw rod which is screwed into the threaded hole.

[0009] By adopting the technical scheme, the position of the positioning member on the telescopic control rod can be conveniently adjusted, and the position of the clamping positioning assembly can be conveniently and quickly adjusted.

[0010] Preferably, the sliding assembly comprises a sliding sleeve which is sleeved on the single pipe and at least two wedge-shaped locking strips which are inserted into the hole wall of the sliding sleeve, the hole wall of the sliding sleeve is uniformly distributed with insertion grooves which are used for inserting the wedge-shaped locking strips in a circumferential direction, the end portions of the sliding sleeve are oppositely provided with positioning grooves which are parallel to the axis of the sliding sleeve in an opening direction, and the two exposed ends of the positioning member abut against the groove bottoms of the positioning grooves.

[0011] By adopting the technical scheme, the sliding sleeve can be conveniently moved on different single pipes, and the wedge-shaped locking strips are arranged to conveniently lock and fix the sliding sleeve after the sliding sleeve is moved into position, thereby avoiding the sliding sleeve from loosening during the movement of the equipment for measurement.

[0012] Preferably, the clamping positioning assembly comprises two clamping plates which are oppositely arranged on the outer wall of the sliding sleeve and abut against the pipe body at the edge of the tube screen.

[0013] By adopting the technical scheme, the clamping positioning assembly is more stable and reliable during clamping and positioning.

[0014] Preferably, the clamping plate is arranged in an arc shape.

[0015] Preferably, a row of contact wheels are arranged on the inner arc surface of the clamping plate.

[0016] By adopting the technical scheme, the shape of the clamping plate is closer to the cross-sectional shape of the pipe, thereby effectively preventing the tube screen scanning device from self-rotating around the axis.

[0017] Preferably, two opposite rotating shaft sleeves are arranged on the outer wall of the sliding sleeve in a radial direction, and the end portion of the clamping plate which is connected to the sliding sleeve is provided with a rotating shaft rod which is rotatably clamped in the rotating shaft sleeve.

[0018] By adopting the technical scheme, the direction of the arc-shaped opening of the clamping plate can be adjusted, so that the clamping plate can be clamped on the inner side or the outer side of the pipeline, and the device can be applied to various measurement conditions such as downward insertion measurement, upward insertion measurement or transverse insertion measurement.

[0019] Preferably, the measurement mechanism comprises a probe device rotatably connected to the front end of the equipment host and a camera device connected to the side of the probe device away from the equipment host.

[0020] In summary, the present application has at least one of the following beneficial technical effects:

[0021] 1. The present application can adjust the position of the positioning member on the telescopic control rod according to the measured depth, then move the sliding assembly and the clamping positioning assembly, so that the sliding assembly is clamped on the positioning member, and the clamping positioning assembly is clamped on the pipe body at the edge of the tube screen, and in the process of transverse movement of the measurement mechanism, the clamping positioning assembly can play the role of axial positioning and movement guide, avoiding the human factors causing the tube screen scanning device to fall or the measurement position to deviate.

[0022] 2. The direction of the arc-shaped opening of the clamping plate can be adjusted, so that the clamping plate can be clamped on the inner side or the outer side of the pipeline, and the device can be applied to various measurement conditions such as downward insertion measurement, upward insertion measurement or transverse insertion measurement. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a schematic diagram of the overall structure of the device of the embodiment of the present application;

[0024] Figure 2 is a schematic diagram of the connection structure of the control mechanism and the telescopic control rod in the embodiment of the present application;

[0025] Figure 3 is a schematic diagram of the use state of the device of the embodiment of the present application;

[0026] In the figure, 1 is a telescopic control rod; 11 is a threaded hole; 2 is an equipment host; 3 is a positioning member; 4 is a sliding assembly; 41 is a sliding sleeve; 42 is a wedge-shaped locking strip; 43 is a slot; 44 is a positioning groove; 5 is a clamping positioning assembly; 51 is a clamping plate; 52 is a contact wheel; 53 is a rotating shaft sleeve; 54 is a rotating shaft rod; 6 is a probe device; and 7 is a camera device. DETAILED DESCRIPTION

[0027] The following will be described in detail with reference to the accompanying drawings. Figure 1 - the accompanying drawings Figure 3 The present application will be further described in detail.

[0028] Embodiment: The present application proposes a stable tube screen scanning device, which is described with reference to the accompanying drawings. Figures 1-3The device comprises a telescopic control rod 1, a device host 2, a measuring mechanism and a control mechanism, the telescopic control rod 1 is connected to one end of the device host 2, the measuring mechanism is connected to the other end of the device host 2, and the control mechanism is connected to the telescopic control rod 1, the control mechanism comprises a positioning member 3, a sliding assembly 4 and a clamping and positioning assembly 5, the measuring mechanism comprises a probe device 6 and a camera device 7, and the control mechanism is used for controlling the device host 2 and the measuring mechanism to measure the depth.

[0029] The telescopic control rod 1 comprises at least two single pipes which are axially sleeved, the single pipe connected to the device host 2 has the smallest diameter, a plurality of threaded holes 11 which are vertically through the central axis are arranged on each single pipe, and the threaded holes 11 are arranged as through holes. The device host 2 is arranged as an elongated structure, is fixedly connected to the thinnest single pipe of the telescopic control rod 1 through the rear end, and the measuring mechanism is installed at the front end of the device host 2, wherein the probe device 6 is rotationally connected to the front end of the device host 2, the rotation axis is perpendicular to the length direction of the device host 2, and the camera device 7 is installed at the end of the probe device 6 away from the device host 2; the probe device 6 detects the detection surface of the pipe screen through a detection probe, and the camera device 7 video-shoots the detection surface of the pipe screen, thereby completing ultrasonic thickness measurement, video appearance inspection and pipe expansion inspection of a large-area pipe screen.

[0030] The positioning member 3 is movably connected to the telescopic control rod 1, in the embodiment, the positioning member 3 is arranged as a screw rod which is screwed into the threaded hole 11, the two ends of the positioning member 3 are both out of the two ends of the threaded hole 11 and expose a length of 5-10 mm, in order to facilitate installation and dismounting of the positioning member 3, one end of the positioning member 3 is provided with a four-ribbed rotating head, thereby facilitating screwing in and screwing out of the positioning member 3.

[0031] The sliding assembly 4 is slidably connected to the telescopic control rod 1, the sliding assembly 4 comprises a sliding sleeve 41 and a wedge-shaped locking strip 42, the sliding sleeve 41 is a cylindrical structure, the inner diameter of the sliding sleeve 41 is the same as the diameter of the thickest single pipe of the telescopic control rod 1, so that the sliding sleeve 41 can move on the telescopic control rod 1, two insertion grooves 43 for inserting the wedge-shaped locking strip 42 are uniformly distributed on the inner hole wall of the sliding sleeve 41 in the circumferential direction, the depths of the insertion grooves 43 are uniform, the groove bottoms are flat, and the two ends of each insertion groove 43 are through to the two end faces of the sliding sleeve 41, one wedge-shaped locking strip 42 is inserted into each insertion groove 43 when the sliding sleeve 41 is moved to the position, the wedge-shaped locking strip 42 is used to extrude the single pipe and the sliding sleeve 41, thereby locking and fixing the sliding sleeve 41. Opposite sides of one end of the sliding sleeve 41 are provided with positioning grooves 44, the opening direction of the positioning grooves 44 is parallel to the axis of the sliding sleeve 41, the width of the positioning grooves 44 is greater than the diameter of the positioning member 3, and the two exposed ends of the positioning member 3 can slide into the positioning grooves 44 until abutting to the groove bottoms of the positioning grooves 44, the positioning member 3 is first positioned, then the sliding sleeve 41 is slid to the positioning position, and finally the sliding sleeve 41 is fixed.

[0032] The clamping positioning assembly 5 is connected to the sliding sleeve 41 and moves together with the sliding sleeve 41, so that the clamping positioning assembly 5 can be in slidable contact with the tubes on the tube panel edge.

[0033] The clamping positioning assembly 5 comprises clamping plates 51, contact wheels 52, rotating shaft sleeves 53 and rotating shaft rods 54. Two clamping plates 51 are oppositely arranged on the outer walls of the two sides of the sliding sleeve 41. In the embodiment, the clamping plates 51 are long arc-shaped plates, the arc-shaped openings of the clamping plates 51 are directed to the axis parallel to the telescopic control rod 1, and the clamping plates 51 are connected with the sliding sleeve 41 through the rotating shaft sleeves 53 and the rotating shaft rods 54. Two opposite rotating shaft sleeves 53 are arranged on the outer wall of the sliding sleeve 41 in the radial direction, the rotating shaft sleeves 53 are circular sleeves, and a clamping groove is arranged on the inner wall of each rotating shaft sleeve 53. The end of each clamping plate 51 is provided with a rotating shaft rod 54 in the form of a cylinder, a semispherical protrusion is arranged on the outer surface of the rotating shaft rod 54, and the rotating shaft rod 54 is rotatably connected in the rotating shaft sleeve 53, and the semispherical protrusion on the rotating shaft rod 54 is clamped in the clamping groove on the rotating shaft sleeve 53, so as to prevent the clamping plate 51 from being separated from the sliding sleeve 41.

[0034] In use, the clamping plates 51 are abutted on the tubes on the tube panel edge through the concave surfaces. In order to reduce the friction when the clamping plates 51 move, a plurality of contact wheels 52 are arranged on the inner arc surfaces of the clamping plates 51 in the length direction, the clamping plates 51 are in contact with the tubes through the contact wheels 52, and the moving friction is reduced.

[0035] The implementation principle of the embodiment is that the tube panel scanning device is first inserted to a detection depth, then the position of the sliding sleeve 41 on the telescopic control rod 1 is moved, the positioning groove 44 is directed away from the equipment host 2, the clamping plates 51 are abutted on the uppermost tubes on the tube panel, then the positioning member 3 is inserted into the threaded hole 11 corresponding to the groove bottom of the positioning groove 44 on the sliding sleeve 41, and the equipment as a whole is clamped by the clamping plates 51 and is not easy to fall, so that the equipment can be moved transversely along the tube panel detection surface.

[0036] The embodiments of the specific embodiment are the preferred embodiments of the application, and do not limit the protection scope of the application. The same parts are indicated by the same reference numerals. Therefore, equivalent changes made according to the structure, shape and principle of the application should be covered by the protection scope of the application.

Claims

1. A stable tube screen scanning device comprising a telescopic control rod (1), a device main body (2) connected to the front end of the telescopic control rod (1), and a measuring mechanism connected to the front end of the device main body (2), characterized in that, The telescopic control rod (1) is provided with a control mechanism for controlling the host device (2) and the measuring depth of the measuring mechanism, the control mechanism comprising a positioning member (3) movably connected to the telescopic control rod (1), a sliding assembly (4) slidably connected to the telescopic control rod (1), and a clamping positioning assembly (5) connected to the sliding assembly (4), the clamping positioning assembly (5) being slidably contacted on the tube body at the edge of the tube screen.

2. A stable tube screen scanning device according to claim 1, wherein The telescopic control rod (1) comprises at least two single tubes connected in an axial sleeve manner, each single tube being provided with a threaded hole (11) vertically penetrating the central axis, the positioning member (3) being provided as a screw rod threadedly connected in the threaded hole (11), and both ends of the positioning member (3) penetrating out of both ends of the threaded hole (11).

3. A stable tube screen scanning device according to claim 2, wherein The sliding assembly (4) comprises a sliding sleeve (41) sleeved on the single tube and at least two wedge-shaped locking strips (42) inserted on the inner hole wall of the sliding sleeve (41), the inner hole wall of the sliding sleeve (41) being uniformly distributed with a plurality of insertion grooves (43) for inserting the wedge-shaped locking strips (42) in a circumferential direction, and the end portions of the sliding sleeve (41) being oppositely provided with positioning grooves (44) with an opening direction parallel to the axis of the sliding sleeve (41), and the two exposed ends of the positioning member (3) being abutted on the groove bottoms of the positioning grooves (44).

4. A stable tube scan device according to claim 3, wherein, The clamping positioning assembly (5) comprises two clamping plates (51) oppositely provided on the outer wall of the sliding sleeve (41), and the clamping plates (51) are abutted on the tube body at the edge of the tube screen.

5. A stable tube scan device according to claim 4, wherein, The clamping plate (51) is provided as an arc-shaped plate.

6. A stable tube scan device according to claim 5, wherein, A plurality of contact wheels (52) are arranged on the inner arc surface of the clamping plate (51).

7. A stable tube scan device according to claim 4, wherein, Two opposite rotating shaft sleeves (53) are arranged on the outer wall of the sliding sleeve (41) in a radial direction, and the end portion of the clamping plate (51) connected to the sliding sleeve (41) is provided with a rotating shaft rod (54) rotatingly and clampingly arranged in the rotating shaft sleeve (53).

8. A stable tube scan device according to claim 1, wherein, The measuring mechanism comprises a probe device (6) rotatably connected to the front end of the host device (2) and a camera device (7) connected to the side of the probe device (6) away from the host device (2).

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