Detection device for detecting crack defects in roller by using ultrasonic angle probe

Abstract

The utility model discloses a detection device for detecting internal crack defects of a roller by using an ultrasonic angle probe, which comprises a flaw detector rack and a fixed seat, a strip-shaped plate is arranged on the left side of the fixed seat, a connecting plate is movably arranged on the strip-shaped plate through a locking mechanism, and the bottom of the connecting plate is connected with a mounting shell through an adjusting mechanism; the adjusting mechanism comprises a first stepping motor, a first rotating lead screw, a first sliding nut, a fixed arm, a swing arm, a second stepping motor, a second rotating lead screw, a second sliding nut, a coupling agent spray head and a probe clamping sleeve. The device has the beneficial effects that the flaw detector is placed on the flaw detector rack, the probe clamping sleeve is used for clamping the ultrasonic angle probe, and according to the flaw detector connected with the ultrasonic angle probe in a matched manner, the internal crack defect of a roller body is continuously detected while the roller is ground by the grinding machine; according to the invention, missing detection and safety risks in manual detection can be reduced, and sufficient coupling agent is supplied in the detection process, so that the coupling effect is ensured, and the detection reliability is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to ultrasonic testing technical field, concretely to a kind of detection device for detecting internal crack defect of roll with ultrasonic oblique probe. BACKGROUND

[0002] In the present metal rolling enterprise, it is necessary to use roll to deform and roll the blank, since the roll is often in high stress working condition, internal crack is prone to occur, which leads to the phenomenon of rupture in use, causing great loss to production.

[0003] At present, ultrasonic oblique probe is used to implement ultrasonic testing on roll body, which is an effective detection method, but manual detection method is selected. Since the roll body is usually large, it must be segmented and positioned during detection. In the detection process, it not only increases the workload, but also has the risk of missed detection and other unsafe factors. In order to liberate labor, improve work efficiency and reduce safety risk, it is necessary to propose a simple and efficient online ultrasonic testing device. UTILITY MODEL CONTENT

[0004] In view of the above defects, the utility model provides a kind of detection device for detecting internal crack defect of roll with ultrasonic oblique probe to solve the problem of internal crack defect detection of roll.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A kind of detection device for detecting internal crack defect of roll with ultrasonic oblique probe, including flaw detector rack and fixed seat, the fixed seat left side is equipped with strip board, the strip board is moved to be connected with connecting plate by locking mechanism, and the connecting plate bottom is connected with installation shell by adjusting mechanism;

[0007] Adjusting mechanism includes stepper motor one, rotating screw one, sliding nut one, fixed arm, swing arm, stepper motor two, rotating screw two, sliding nut two, coupling agent spray head and probe clamping sleeve, the stepper motor one is horizontally installed on the connecting plate bottom, the rotating screw one is installed on the rotating end of stepper motor one, the sliding nut one is movably sleeved on the rotating screw one, the fixed arm is installed on the left side of connecting plate, the swing arm is hinged to the front end of fixed arm, the stepper motor two is horizontally installed on the bottom of swing arm, the rotating screw two is installed on the rotating end of stepper motor two, the sliding nut two is movably sleeved on the rotating screw two, the coupling agent spray head is installed on the bottom of installation shell front end, and the probe clamping sleeve is installed on the bottom of installation shell rear end.

[0008] Further, the locking mechanism comprises an adjusting shell, a protrusion, a plurality of pressing rods, a plurality of connecting springs and a plurality of limiting tooth blocks, the adjusting shell is sleeved on the strip-shaped plate and connected with the connecting plate at the bottom, the protrusion is arranged at the top of the adjusting shell, the plurality of pressing rods are movably inserted into the adjusting shell at two sides, one end of each of the plurality of connecting springs is connected with the corresponding pressing rod, and the other end is connected with the protrusion, and the plurality of limiting tooth blocks are installed at the inner ends of the plurality of pressing rods.

[0009] Further, grooves are formed in the strip-shaped plate, and limiting tooth grooves corresponding to the plurality of limiting tooth blocks are formed at two sides of each groove.

[0010] Further, the sliding nut one is hinged with the swing arm through a connecting rod one, the sliding nut two is hinged with the mounting shell through a connecting rod two, and the upper end of the mounting shell is hinged on the swing arm.

[0011] Further, the coupling agent nozzle is connected with an external coupling agent conveying pipe.

[0012] Further, the flaw detector bench and the fixing seat are respectively fixed on an external grinding machine.

[0013] The utility model provides a kind of detection device for detecting internal crack defect of roll with ultrasonic oblique probe, with following beneficial effects, flaw detector is placed on flaw detector bench, probe clamping sleeve is used to clamp ultrasonic oblique probe, according to the flaw detector matched with ultrasonic oblique probe, realize the detection of internal crack defect of roll body while grinding roll in grinding machine, enough coupling agent is supplied in detection process, to guarantee coupling effect, improve detection reliability. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a kind of detection device for detecting internal crack defect of roll with ultrasonic oblique probe described in the utility model.

[0015] Figure 2 It is the sectional view of adjusting shell described in the utility model.

[0016] Figure 3 It is the plan view of strip-shaped plate described in the utility model.

[0017] Figure 4 It is the schematic diagram of adjusting mechanism described in the utility model.

[0018] Figure 5 It is the right view of swing arm described in the utility model.

[0019] In the figure: 1, flaw detector rack; 2, fixed seat; 3, strip plate; 4, connecting plate; 5, installation shell; 6, stepper motor one; 7, rotating screw one; 8, sliding nut one; 9, fixed arm; 10, swing arm; 11, stepper motor two; 12, rotating screw two; 13, sliding nut two; 14, coupling agent spray head; 15, probe clamping sleeve; 16, adjusting shell; 17, protruding block; 18, pressing rod; 19, connecting spring; 20, limit tooth block; 21, recess; 22, limit tooth groove; 23, connecting rod one; 24, connecting rod two. DETAILED DESCRIPTION

[0020] The utility model is specifically described below in combination with the drawings, such as Figures 1-5 A kind of detection device for detecting internal crack defects of roll with ultrasonic oblique probe, including flaw detector rack 1 and fixed seat 2, the fixed seat 2 left side is equipped with strip plate 3, connecting plate 4 is movably provided on strip plate 3 by locking mechanism, connecting plate 4 bottom is connected with installation shell 5 by adjusting mechanism;Adjusting mechanism includes stepper motor one 6, rotating screw one 7, sliding nut one 8, fixed arm 9, swing arm 10, stepper motor two 11, rotating screw two 12, sliding nut two 13, coupling agent spray head 14 and probe clamping sleeve 15, the stepper motor one 6 is horizontally installed at connecting plate 4 bottom, the rotating screw one 7 is installed on the rotating end of stepper motor one 6, the sliding nut one 8 is movably sleeved on the rotating screw one 7, the fixed arm 9 is installed on the left side of connecting plate 4, the swing arm 10 is hinged at the front end of fixed arm 9, the stepper motor two 11 is horizontally installed at the bottom of swing arm 10, the rotating screw two 12 is installed on the rotating end of stepper motor two 11, the sliding nut two 13 is movably sleeved on the rotating screw two 12, the coupling agent spray head 14 is installed at the bottom of installation shell 5 front end, the probe clamping sleeve 15 is installed at the bottom of installation shell 5 rear end;Locking mechanism includes adjusting shell 16, protruding block 17, a group of pressing rods 18, a group of connecting springs 19 and a group of limit tooth blocks 20, the adjusting shell 16 is sleeved on strip plate 3, and bottom is connected with connecting plate 4, the protruding block 17 is arranged in the top of adjusting shell 16, a group of pressing rods 18 are movably inserted in adjusting shell 16 both sides, a group of connecting springs 19 are respectively connected with corresponding pressing rod 18 one end, and are connected with protruding block 17 the other end, a group of limit tooth blocks 20 are installed in the inner end of a group of pressing rods 18;The recess 21 is opened on the strip plate 3, and the limit tooth groove 22 corresponding to a group of limit tooth blocks 20 is respectively opened on the both sides of recess 21;The sliding nut one 8 and swing arm 10 are hinged by connecting rod one 23, the sliding nut two 13 and installation shell 5 are hinged by connecting rod two 24, and the upper end of installation shell 5 is hinged on swing arm 10;The coupling agent spray head 14 is connected with external coupling agent delivery pipe;The flaw detector rack 1 and fixed seat 2 are fixed on external grinding machine respectively.

[0021] Working principle of the embodiment: the electrical equipment used by the device is controlled by the external controller, the flaw detector rack 1 and the fixing seat 2 are respectively fixed on the external grinding machine at appropriate positions, and the flaw detector is placed on the flaw detector rack 1, the probe clamping sleeve 15 is used to clamp the ultrasonic oblique probe, the coupling agent spray head 14 is connected with the external coupling agent conveying pipe and is used for automatic spraying of the coupling agent, and the existing technology can be used to realize the automatic spraying of the coupling agent;

[0022] When locked: the adjusting shell 16 is sleeved on the strip-shaped plate 3, the bottom is connected with the connecting plate 4, the protruding block 17 is arranged at the top of the adjusting shell 16, a group of pressing rods 18 are movably inserted into the adjusting shell 16 on both sides, a group of connecting springs 19 are respectively connected with the corresponding pressing rods 18 at one end and are connected with the protruding block 17 at the other end, a group of limiting tooth blocks 20 are installed at the inner ends of the pressing rods 18, a groove 21 is opened on the strip-shaped plate 3, limiting tooth grooves 22 corresponding to the limiting tooth blocks 20 are respectively opened on both sides of the groove 21, as shown in Figure 2 and Figure 3 When locked: the adjusting shell 16 is sleeved on the strip-shaped plate 3, the bottom is connected with the connecting plate 4, the protruding block 17 is arranged at the top of the adjusting shell 16, a group of pressing rods 18 are movably inserted into the adjusting shell 16 on both sides, a group of connecting springs 19 are respectively connected with the corresponding pressing rods 18 at one end and are connected with the protruding block 17 at the other end, a group of limiting tooth blocks 20 are installed at the inner ends of the pressing rods 18, a groove 21 is opened on the strip-shaped plate 3, limiting tooth grooves 22 corresponding to the limiting tooth blocks 20 are respectively opened on both sides of the groove 21, as shown in

[0023] When locked: the adjusting shell 16 is sleeved on the strip-shaped plate 3, the bottom is connected with the connecting plate 4, the protruding block 17 is arranged at the top of the adjusting shell 16, a group of pressing rods 18 are movably inserted into the adjusting shell 16 on both sides, a group of connecting springs 19 are respectively connected with the corresponding pressing rods 18 at one end and are connected with the protruding block 17 at the other end, a group of limiting tooth blocks 20 are installed at the inner ends of the pressing rods 18, a groove 21 is opened on the strip-shaped plate 3, limiting tooth grooves 22 corresponding to the limiting tooth blocks 20 are respectively opened on both sides of the groove 21, as shown in Figure 4 and Figure 5 When locked: the adjusting shell 16 is sleeved on the strip-shaped plate 3, the bottom is connected with the connecting plate 4, the protruding block 17 is arranged at the top of the adjusting shell 16, a group of pressing rods 18 are movably inserted into the adjusting shell 16 on both sides, a group of connecting springs 19 are respectively connected with the corresponding pressing rods 18 at one end and are connected with the protruding block 17 at the other end, a group of limiting tooth blocks 20 are installed at the inner ends of the pressing rods 18, a groove 21 is opened on the strip-shaped plate 3, limiting tooth grooves 22 corresponding to the limiting tooth blocks 20 are respectively opened on both sides of the groove 21, as shown in

[0024] Before the flaw detection, the rust and oxide on the surface of the roll are removed, the strong light, radiation, rust and vibration place are avoided, the balanced pressure is kept during the flaw detection of the ultrasonic oblique probe, the coupling agent nozzle 14 is used to fill the coupling agent between the ultrasonic oblique probe and the roll, which is beneficial to the ultrasonic wave entering the roll and reducing the friction, after the crack defects inside and on the surface of the roll are found through the preliminary flaw detection, the trend and depth of the crack defects are accurately determined; the refraction angle of the transverse wave of the ultrasonic oblique probe is between 45°-71°, the frequency band range of the ultrasonic wave emitted by the ultrasonic oblique probe is 2.5MHz, and the wave peak of the defect wave F is low cluster or straight and steep, that is, the crack defects inside the defect area can be detected.

[0025] The above technical scheme only embodies the preferred technical scheme of the technical scheme of the utility model, and some changes made by the person skilled in the art to some parts thereof all embody the principle of the utility model and belong to the protection scope of the utility model.

Claims

1. A detection device for detecting internal crack defects of a roll by using an ultrasonic oblique probe, comprising a detector rack (1) and a fixing base (2), wherein a strip-shaped plate (3) is installed on the left side of the fixing base (2), and characterized in that, The connecting plate (4) is movably connected to the bar-shaped plate (3) through a locking mechanism, and the mounting shell (5) is connected to the bottom of the connecting plate (4) through an adjusting mechanism. The adjusting mechanism comprises a step motor one (6), a rotating screw one (7), a sliding nut one (8), a fixed arm (9), a swing arm (10), a step motor two (11), a rotating screw two (12), a sliding nut two (13), a coupling agent nozzle (14) and a probe clamping sleeve (15), the step motor one (6) is horizontally installed on the bottom of the connecting plate (4), the rotating screw one (7) is installed on the rotating end of the step motor one (6), the sliding nut one (8) is movably sleeved on the rotating screw one (7), the fixed arm (9) is installed on the left side of the connecting plate (4), the swing arm (10) is hinged to the front end of the fixed arm (9), the step motor two (11) is horizontally installed on the bottom of the swing arm (10), the rotating screw two (12) is installed on the rotating end of the step motor two (11), the sliding nut two (13) is movably sleeved on the rotating screw two (12), the coupling agent nozzle (14) is installed on the front end of the bottom of the mounting shell (5), and the probe clamping sleeve (15) is installed on the rear end of the bottom of the mounting shell (5).

2. The apparatus for detecting internal crack defects of a roll using an ultrasonic oblique probe according to claim 1, wherein The locking mechanism comprises an adjusting shell (16), a protrusion (17), a group of pressing rods (18), a group of connecting springs (19) and a group of limiting tooth blocks (20), the adjusting shell (16) is sleeved on the bar-shaped plate (3), and the bottom is connected with the connecting plate (4), the protrusion (17) is arranged at the top of the adjusting shell (16), a group of pressing rods (18) are movably inserted into the adjusting shell (16) on both sides, a group of connecting springs (19) are respectively connected with the corresponding pressing rods (18) at one end, and are connected with the protrusion (17) at the other end, and a group of limiting tooth blocks (20) are installed at the inner ends of the group of pressing rods (18).

3. The apparatus for detecting internal crack defects of a roll using an ultrasonic angle probe according to claim 1, wherein A groove (21) is formed in the bar-shaped plate (3), and a limiting tooth groove (22) corresponding to the group of limiting tooth blocks (20) is formed on both sides of the groove (21).

4. The apparatus for detecting internal crack defects of a roll using an ultrasonic oblique probe according to claim 1, wherein The sliding nut one (8) and the swing arm (10) are hinged through a connecting rod one (23), the sliding nut two (13) and the mounting shell (5) are hinged through a connecting rod two (24), and the upper end of the mounting shell (5) is hinged to the swing arm (10).

5. The apparatus for detecting internal crack defects of a roll using an ultrasonic angle probe according to claim 1, wherein The coupling agent nozzle (14) is connected with an external coupling agent conveying pipe.

6. The apparatus for detecting internal crack defects of a roll using an ultrasonic angle probe according to claim 1, wherein The flaw detector rack (1) and the fixed seat (2) are respectively fixed on an external grinding machine.

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