Ultrasonic flaw detection tool for pipe flaw detection

Abstract

The utility model discloses an ultrasonic flaw detection tool for pipe defect detection, which comprises a placing table, a moving frame is slidably mounted at the top end of the placing table, a rotating rod is rotatably mounted at the end part of the moving frame, a connecting plate is fixedly mounted in the middle of the rotating rod, a probe is fixedly mounted below the connecting plate, and the probe is fixedly connected with the moving frame. The probe is electrically connected with ultrasonic flaw detection equipment through a wire, supporting wheels are symmetrically and rotationally installed on the upper surface of the bottom end of the containing table, the probe can be driven to move along the track of the central axis of a pipe through operation of a screw pair, flaw detection is conducted on the full-length surface of the pipe, and a friction wheel is driven to rotate through operation of a motor. The circumferential welding track of the pipe can be detected through extrusion contact of the friction wheel and the pipe, the lifting plate is driven by the electric push rod to ascend and descend along the fixed rod, the height of the friction wheel can be adjusted, rotation of the pipes with different diameters is controlled, and torsion of the rotating rod is controlled through the torsion spring. And the probe on the control connecting plate is constantly extruded and contacted with the surface of the pipe.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipe material defect detection technical field, specifically is a pipe material defect detection is with ultrasonic flaw detection frock. BACKGROUND

[0002] Pipe material is welded frequently in the pipe material processing or frame welding process, in order to guarantee the quality of pipe material welding, need to detect whether pipe material appears defect, therefore carries out ultrasonic flaw detection to pipe material.

[0003] In prior art, when carrying out ultrasonic flaw detection to pipe material, generally, manual detection head is close to pipe material surface, and welding position is detected, and the detection process is more complicated, therefore, ultrasonic flaw detection equipment that can rotate pipe material is used to carry out flaw detection to pipe material, but when carrying out flaw detection to pipe material of different diameters, the position of detection head also needs to be adjusted, and it is inconvenient to control pipe material of different diameters to rotate. UTILITY MODEL CONTENT

[0004] The utility model discloses a pipe material defect detection is with ultrasonic flaw detection frock to solve the problem in the background art of foregoing.

[0005] To achieve the above object, the utility model provides the following technical scheme: a pipe material defect detection is with ultrasonic flaw detection frock, including the placement platform, the top end sliding installation of placement platform has the moving frame, the end rotation of moving frame installs the rotating rod, the middle part fixed mounting of rotating rod has the connecting plate, the lower fixed mounting of connecting plate has the probe, and the probe is electrically connected with ultrasonic flaw detection equipment through wire, the bottom upper surface symmetry rotation of placement platform installs the support wheel, the middle part installation of placement platform has the mounting plate, and the mounting plate is liftable, and the top end rotation of mounting plate installs the friction wheel through the pivot, and the friction wheel is in contact with pipe material setting.

[0006] As a further preferred of the technical scheme, one end of the torsion spring is fixedly connected with the end of the rotating rod, and the other end of the torsion spring is fixedly connected with one side of the moving frame.

[0007] As a further preferred of the technical scheme, the top end of the placement platform is provided with a screw pair, and the end of the moving frame is threadedly connected with a screw of the screw pair.

[0008] As a further preferred of the technical scheme, the middle part lower surface of the placement platform is fixedly provided with a fixed rod, and the bottom end of the two fixed rods is fixedly provided with a fixed plate, and the lifting plate is slidably installed between the two fixed plates, and the mounting plate is fixedly installed on the top of the lifting plate.

[0009] As a further preferred of the technical solution, the bottom end side of the mounting plate is fixedly installed with a motor, the output end of the motor is fixedly installed with a first belt pulley through the mounting plate, the top end side of the mounting plate is installed with a second belt pulley corresponding to the position of the friction wheel, the second belt pulley is fixedly connected with the friction wheel through a rotating shaft, and the second belt pulley and the first belt pulley are installed with a transmission belt.

[0010] As a further preferred of the technical solution, the bottom end side of the mounting plate is fixedly installed with a motor, the output end of the motor is fixedly installed with a first belt pulley through the mounting plate, the top end side of the mounting plate is installed with a second belt pulley corresponding to the position of the friction wheel, the second belt pulley is fixedly connected with the friction wheel through a rotating shaft, and the second belt pulley and the first belt pulley are installed with a transmission belt.

[0011] The utility model provides a kind of ultrasonic flaw detection tool for pipe defect detection, with following beneficial effects:

[0012] (1) the utility model discloses a pipe is placed on four support wheels, and the friction wheel is extruded and contacted with pipe by electric push rod, and the probe on connecting plate is close to pipe, then the operation of screw rod pair can drive probe to move along the central axis track of pipe, and the full length surface of pipe is detected, the first belt pulley is rotated by motor, and the transmission of second belt pulley and first belt pulley by transmission belt will drive friction wheel to rotate, and the extrusion contact of friction wheel and pipe can detect the circumferential welding track of pipe.

[0013] (2) the utility model discloses that electric push rod drives lifting plate to lift along fixed rod, and the height of friction wheel can be adjusted, is used for controlling the rotation of pipe of different diameters, and the torsion of swivel lever is controlled by torsion spring, and the probe on connecting plate is extruded and contacted on pipe surface at all times. ACCURACY OF DRAWINGS

[0014] Figure 1 It is the overall structure schematic diagram of the utility model;

[0015] Figure 2 It is the overall explosion structure schematic diagram of the utility model;

[0016] Figure 3 It is the local structure schematic diagram one of the utility model;

[0017] Figure 4 It is the local structure schematic diagram two of the utility model;

[0018] In the figure: 1, the placement table; 2, the moving frame; 3, the rotating rod; 4, the connecting plate; 5, the probe; 6, the supporting wheel; 7, the mounting plate; 8, the friction wheel; 9, the torsion spring; 10, the screw pair; 11, the fixed rod; 12, the fixed plate; 13, the lifting plate; 14, the electric push rod; 15, the motor; 16, the first pulley; 17, the second pulley; 18, the transmission belt; 19, the limiting rod; 20, the extrusion plate; 21, the extrusion spring. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model.

[0020] The utility model provides technical schemes: as Figures 1 to 4 The utility model discloses a pipe defect detection ultrasonic flaw detection tool, which comprises a placement table 1, a moving frame 2 is slidably installed at the top of the placement table 1, a rotating rod 3 is rotatably installed at the end of the moving frame 2, a connecting plate 4 is fixedly installed at the middle of the rotating rod 3, a probe 5 is fixedly installed below the connecting plate 4, the probe 5 is electrically connected with an ultrasonic flaw detection device through wires, supporting wheels 6 are rotatably installed on the bottom upper surface of the placement table 1 in a symmetrical mode, a mounting plate 7 is installed at the middle of the placement table 1, the mounting plate 7 can be lifted and lowered, a friction wheel 8 is rotatably installed at the top of the mounting plate 7 through a rotating shaft, and the friction wheel 8 is arranged in contact with the pipe.

[0021] As Figures 1 to 4 The end of the rotating rod 3 is provided with a torsion spring 9 outside, one end of the torsion spring 9 is fixedly connected with the end of the rotating rod 3, and the other end of the torsion spring 9 is fixedly connected with one side of the moving frame 2.

[0022] The torsion spring 9 controls the torsion of the rotating rod 3, so that the probe 5 on the connecting plate 4 is always extruded and contacted on the surface of the pipe, and the probe 5 can be attached to the surface of the pipe with different diameters.

[0023] As Figures 1 to 4 The top of the placement table 1 is provided with a screw pair 10, and the end of the moving frame 2 is threadedly connected with a screw on the screw pair 10.

[0024] The operation of the screw pair 10 can drive the probe 5 to move along the central axis track of the pipe, and the full-length surface of the pipe can be detected.

[0025] As Figures 1 to 4As shown in the drawings, the middle lower surface of the placement table 1 is symmetrically fixedly provided with a fixed rod 11, the bottom end of the two fixed rods 11 is fixedly provided with a fixed plate 12, the lifting plate 13 is slidably arranged between the two fixed plates 12, the mounting plate 7 is fixedly arranged on the top of the lifting plate 13, the bottom of the fixed plate 12 is fixedly provided with an electric push rod 14, and the moving end of the electric push rod 14 is fixedly connected with the lifting plate 13 through the fixed plate 12.

[0026] The electric push rod 14 drives the lifting plate 13 to ascend and descend along the fixed rod 11, so that the height of the friction wheel 8 can be adjusted, and the rotation of the pipe with different diameters can be controlled.

[0027] As shown in the drawings, Figures 1 to 4 The bottom end of the mounting plate 7 is fixedly provided with a motor 15, the output end of the motor 15 is fixedly provided with a first belt pulley 16 through the mounting plate 7, the top end of the mounting plate 7 is provided with a second belt pulley 17 at a position corresponding to the friction wheel 8, the second belt pulley 17 is fixedly connected with the friction wheel 8 through a rotating shaft, and the second belt pulley 17 and the first belt pulley 16 are provided with a transmission belt 18.

[0028] The motor 15 drives the first belt pulley 16 to rotate, the transmission of the second belt pulley 17 and the first belt pulley 16 through the transmission belt 18 drives the friction wheel 8 to rotate, and the friction wheel 8 is in extrusion contact with the pipe, so that the circumferential welding track of the pipe can be detected, the motor 15 and the friction wheel 8 are arranged at different heights, and the motor 15 is prevented from interfering with the placement table 1 during the lifting process.

[0029] As shown in the drawings, Figures 1 to 4 The two ends of the placement table 1 are symmetrically fixedly provided with a limiting rod 19, the extrusion plate 20 is slidably arranged between the two limiting rods 19, the extrusion spring 21 is arranged on the outer side of the limiting rod 19, one end of the extrusion spring 21 is fixedly connected with the extrusion plate 20, and the other end of the extrusion spring 21 is fixedly connected with the placement table 1.

[0030] When the pipe is placed on the four supporting wheels 6, the extrusion of the extrusion plate 20 by the extrusion spring 21 can drive the extrusion plate 20 to extrude the pipe, so that the central position of the pipe can be controlled, and the pipe is prevented from deviating during the rotation process.

[0031] The utility model provides a kind of pipe defect detection uses ultrasonic flaw detection tool, specific working principle is as follows:

[0032] When the device is in use, the pipe is placed on the four supporting wheels 6, the friction wheel 8 is driven by the electric push rod 14 to extrude and contact the pipe, the probe 5 on the connecting plate 4 is close to the pipe, the high-frequency pulse voltage is generated by the high-frequency pulse generator in the ultrasonic flaw detection equipment, the voltage acts on the piezoelectric crystal on the probe 5 through the wire, the electric energy is converted into mechanical vibration, that is, ultrasonic wave, and is emitted into the pipe, the ultrasonic wave emitted in the pipe area covered by the probe 5 propagates, when encountering defects or structure changes in the pipe, reflection occurs, the probe 5 receives the ultrasonic wave reflected from the defects and converts it into an electric signal, the received electric signal is transmitted to the ultrasonic flaw detection equipment through the wire and is amplified and processed to form a waveform signal that can be displayed by the ultrasonic flaw detection equipment, by analyzing the displayed waveform signal, whether the pipe has defects at this position can be judged, the detection principle is the same as the flaw detection principle in the ultrasonic flaw detection equipment, and then the probe 5 is driven to move along the central axis line track of the pipe by the operation of the screw pair 10, so that the full length surface of the pipe is detected, the first belt pulley 16 is driven to rotate by the motor 15, the second belt pulley 17 and the first belt pulley 16 are driven by the transmission belt 18, so that the friction wheel 8 is driven to rotate, and the circumferential welding track of the pipe can be detected by the extrusion contact between the friction wheel 8 and the pipe.

[0033] When the pipes with different diameters are detected by ultrasonic waves, the height of the friction wheel 8 can be adjusted by driving the lifting plate 13 to ascend and descend along the fixed rod 11 by the electric push rod 14, so as to control the rotation of the pipes with different diameters, and the probe 5 on the connecting plate 4 is extruded and contacted on the surface of the pipe at all times by controlling the torsion of the rotating rod 3 by the torsion spring 9.

[0034] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to the embodiments without departing from the principles and spirits of the present application, the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An ultrasonic flaw detection tool for pipe defects, characterized by: The utility model provides a kind of ultrasonic testing device, including placing table (1), the top end sliding installation of placing table (1) is equipped with moving frame (2), the end of moving frame (2) is rotatably installed with rotary bar (3), the middle part of rotary bar (3) is fixedly installed with connecting plate (4), the lower of connecting plate (4) is fixedly installed with probe (5), probe (5) is electrically connected with ultrasonic flaw detection equipment by wire, the bottom end upper surface of placing table (1) is symmetrically rotatably installed with support wheel (6), the middle part of placing table (1) is installed with mounting plate (7), mounting plate (7) can be lifted, the top end of mounting plate (7) is rotatably installed with friction wheel (8) by pivot, and friction wheel (8) is contacted with pipe material.

2. The ultrasonic flaw detection tool for pipe defect detection according to claim 1, characterized in that: One end outside of rotary bar (3) is equipped with torsion spring (9), one end of torsion spring (9) is fixedly connected with the end of rotary bar (3), and the other end of torsion spring (9) is fixedly connected with one side of moving frame (2).

3. The ultrasonic flaw detection tool for pipe defect detection according to claim 1, characterized in that: The top end of placing table (1) is installed with screw pair (10), and the end of moving frame (2) is threadedly connected with the screw of screw pair (10).

4. The ultrasonic flaw detection tool for pipe defect detection according to claim 3, characterized in that: The middle part lower surface of placing table (1) is symmetrically fixedly installed with fixed rod (11), the bottom end of two fixed rods (11) is fixedly installed with fixed plate (12), and lifting plate (13) is slidably installed between two fixed plates (12), and mounting plate (7) is fixedly installed on the top of lifting plate (13).

5. The ultrasonic testing tool for pipe defect detection according to claim 4, characterized in that: The bottom end one side of mounting plate (7) is fixedly installed with motor (15), the output end of motor (15) is fixedly installed with first belt pulley (16) through mounting plate (7), the top end one side of mounting plate (7) is installed with second belt pulley (17) corresponding the position of friction wheel (8), second belt pulley (17) is fixedly connected with friction wheel (8) by pivot, and transmission belt (18) is installed between second belt pulley (17) and first belt pulley (16).

6. The ultrasonic testing device for pipe defect detection according to claim 4, characterized in that: Both ends of placing table (1) are symmetrically fixedly installed with limiting rod (19), and extrusion plate (20) is slidably installed between two limiting rods (19), extrusion spring (21) is sleeved outside limiting rod (19), one end of extrusion spring (21) is fixedly connected with extrusion plate (20), and the other end of extrusion spring (21) is fixedly connected with placing table (1).

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