Fluorescent magnetic particle flaw detector for pipe fitting
By introducing a detection frame and coating roller structure into the fluorescent magnetic particle flaw detector, the problem of uneven coating of fluorescent dye on the pipe surface was solved, realizing automated fluorescent liquid coating and improving flaw detection efficiency and accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-21
- Publication Date
- 2026-03-24
AI Technical Summary
Existing fluorescent magnetic particle flaw detectors cannot evenly apply fluorescent dye when performing rotational flaw detection on pipe fittings, requiring manual assistance, which increases the difficulty of using the flaw detector and reduces its efficiency.
A structure including a testing frame, a reciprocating lead screw, a crossbar, a placement box, a slider, an electric push rod, a liquid storage box, a support rod, and a coating roller is designed. The coating roller is driven by a motor to uniformly coat the surface of the tube with fluorescent liquid. The rotation of the tube and the synchronous movement of the coating roller are achieved by combining gear transmission and belt transmission.
It enables rapid and comprehensive application of fluorescent liquid, reduces manual intervention, improves the accuracy and stability of flaw detection, and enhances flaw detection efficiency.
Smart Images

Figure CN224035282U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to fluorescent magnetic particle flaw detector technical field, concretely relates to a fluorescent magnetic particle flaw detector for pipe fitting. BACKGROUND
[0002] Fluorescent magnetic particle flaw detector is a kind of machine for nondestructive testing ferromagnetic parts, also commonly used for the damage detection of pipe fitting surface, for example, the patent document with the announcement number CN220399331U discloses a fluorescent magnetic particle flaw detector for gasification pipe fitting, the flaw detector is equipped with detection shell, the pipeline to be detected is placed between two plug-in connectors, extrusion spring cooperates with guide rod to push moving plate away from fixed plate and moves, and then the plug-in connector is stably inserted into the two ends of the pipeline, when detecting, start double-shaft motor, double-shaft motor drives driving sprocket to rotate by connecting shaft, driving sprocket and driven sprocket are transmissionally connected to drive transmission shaft to drive plug-in connector to rotate, and then drive the pipeline to rotate, which can realize the fluorescent magnetic particle flaw detection of pipeline quickly and comprehensively, and ensure the detection quality and efficiency.
[0003] But the above-mentioned flaw detector when using, only the rotation flaw detection of pipe fitting, still cannot uniformly fluorescent dye is applied to the surface of pipe fitting, still need manual auxiliary operation, increase the operation difficulty in the use process of flaw detector, reduce the flaw detection efficiency. UTILITY MODEL CONTENT
[0004] In view of the above-mentioned problems existing in the prior art fluorescent magnetic particle flaw detector for pipe fitting, the utility model is proposed.
[0005] Therefore, the utility model aims at providing a fluorescent magnetic particle flaw detector for pipe fitting, to solve the problem that the prior art flaw detector cannot uniformly and comprehensively apply fluorescent dye to the surface of pipe fitting before flaw detection.
[0006] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme:
[0007] A fluorescent magnetic particle flaw detector for pipe fitting, comprising a flaw detector and a detection frame fixedly arranged at the bottom of the flaw detector, a horizontal rod is rotatably arranged at the lower end of each side of the detection frame, and a placing box is fixedly arranged at the end of each horizontal rod close to the other;
[0008] A reciprocating screw rod is rotatably arranged at the lower end of the detection frame, a sliding block is threadedly arranged on the rod wall of the reciprocating screw rod, a liquid storage box is fixedly arranged on the top of the sliding block by an electric push rod, a supporting rod is rotatably arranged at the upper end of the inner wall of the liquid storage box, and an application roller is fixedly arranged on the rod wall of the supporting rod, wherein the application roller is arranged in the liquid storage box.
[0009] The rod wall of the cross rod and the reciprocating wire rod is respectively fixedly sleeved with a first belt pulley and a second belt pulley, a belt is arranged in transmission between the first belt pulley and the second belt pulley, and the outer wall of the detection frame is fixedly provided with a motor, and the output shaft of the motor is fixedly connected with the reciprocating wire rod.
[0010] Preferably, the outer wall of the sliding block is fixedly provided with a horizontal plate at the upper end, a vertical rod is rotatably arranged in the horizontal plate, a first bevel gear is fixedly arranged at the top of the vertical rod, a second bevel gear is fixedly sleeved on the end of the supporting rod, the first bevel gear and the second bevel gear are arranged in cooperation, a round gear is fixedly sleeved on the lower end of the vertical rod, and a rack is fixedly arranged at the lower end of the inner wall of the detection frame.
[0011] Preferably, the outer wall of the liquid storage box is fixedly provided with a liquid adding cylinder at the upper end, and a liquid guide pipe is arranged in communication between the liquid adding cylinder and the liquid storage box.
[0012] Preferably, a plurality of sliding balls are embedded in the bottom of the sliding block.
[0013] Further, a cover plate is slidably arranged at the upper end of the side of the placing box, a spring is sleeved on the outer wall of the cover plate, and the two ends of the spring are fixedly connected with the cover plate and the placing box respectively.
[0014] Preferably, the liquid storage box is a transparent liquid storage box.
[0015] In the above technical solution, the technical effects and advantages of the present application are provided.
[0016] 1. The utility model discloses a detection frame, a reciprocating wire rod, a cross rod, a placing box, a sliding block, an electric push rod, a liquid storage box, a supporting rod and a smearing roller are arranged, after the position of the pipe fitting is determined, the pipe fitting can be driven, and the smearing roller can smear the fluorescent liquid on the surface of the pipe fitting quickly and comprehensively, manual intervention is reduced, the fluorescent liquid smearing effect is guaranteed, and the flaw detection accuracy is improved.
[0017] 2. The utility model discloses a placing box, a cover plate, a spring and a push bolt are arranged, the pipe fitting can be stably clamped, and the stability of the pipe fitting before and after flaw detection is guaranteed. ACCURACY
[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.
[0019] Figure 1 The structural diagram of the present application is shown in the figure.
[0020] Figure 2 The utility model discloses a Figure 1 A part enlarged schematic view of the utility model discloses a
[0021] Figure 3 The utility model discloses a cover plate's three-dimensional structure schematic diagram.
[0022] Mark explanation:
[0023] 1, flaw detector;2, detection frame;3, cross bar;4, placing box;5, reciprocating screw rod;6, sliding block;7, electric push rod;8, liquid storage box;9, support rod;10, smearing roller;11, first belt pulley;12, second belt pulley;13, belt;14, motor;15, horizontal plate;16, vertical rod;17, first bevel gear;18, second bevel gear;19, circular gear;20, rack;21, liquid adding cylinder;22, liquid guide pipe;23, sliding ball;24, cover plate;25, spring;26, push bolt. Specific implementation
[0024] In order to make the technical personnel of the prior art better understand the technical scheme of the utility model, the utility model will be introduced further in detail below with the accompanying drawings.
[0025] The utility model discloses a kind of fluorescent magnetic particle flaw detector for pipe fitting.
[0026] The utility model provides a kind of fluorescent magnetic particle flaw detector for pipe fitting as Figures 1-3 As shown in the figure, a kind of fluorescent magnetic particle flaw detector for pipe fitting including flaw detector 1 and fixedly arranged in the bottom of flaw detector 1 detection frame 2, the lower end of both sides of detection frame 2 is rotationally equipped with cross bar 3, two cross bars 3 are close to one end and are fixedly equipped with placing box 4, the upper end of the side portion of placing box 4 is slidably equipped with cover plate 24, the outer wall of cover plate 24 is equipped with spring 25, the both ends of spring 25 are fixedly connected with cover plate 24 and placing box 4 respectively, the bottom of placing box 4 is threadedly equipped with push bolt 26;
[0027] The lower end of detection frame 2 is rotationally equipped with reciprocating screw rod 5, the rod wall of reciprocating screw rod 5 is threadedly equipped with sliding block 6, the bottom of sliding block 6 is rotatably embedded with multiple sliding balls 23, the top of sliding block 6 is fixedly equipped with liquid storage box 8 by electric push rod 7, liquid storage box 8 is transparent liquid storage box, the inner wall upper end of liquid storage box 8 is rotationally equipped with support rod 9, the rod wall of support rod 9 is fixedly equipped with smearing roller 10, smearing roller 10 is arranged in liquid storage box 8.
[0028] The rod wall of cross bar 3 and reciprocating screw rod 5 is fixedly equipped with first belt pulley 11 and second belt pulley 12 respectively, first belt pulley 11 and second belt pulley 12 are transmissionally equipped with belt 13, the outer wall of detection frame 2 is fixedly equipped with motor 14, the output shaft of motor 14 is fixedly connected with reciprocating screw rod 5.
[0029] In order to enable the fluorescent liquid can be evenly and comprehensively coated on the surface of the pipe, such as Figures 1-2 As shown, the outer wall of the liquid storage box 8 is fixedly provided with a liquid adding cylinder 21, the liquid adding cylinder 21 and the liquid storage box 8 are communicated with a liquid guide pipe 22, the outer wall of the sliding block 6 is fixedly provided with a horizontal plate 15, the inside of the horizontal plate 15 is rotatably provided with a vertical rod 16, the top of the vertical rod 16 is fixedly provided with a first bevel gear 17, the end of the supporting rod 9 is fixedly sleeved with a second bevel gear 18, the first bevel gear 17 and the second bevel gear 18 are matched, the lower end of the vertical rod 16 is fixedly sleeved with a circular gear 19, the inner wall of the detection frame 2 is fixedly provided with a rack 20, and the circular gear 19 and the rack 20 are matched.
[0030] Working principle:
[0031] Before the pipe is detected, the cover plates 24 in the two placing boxes 4 are horizontally pulled to expose the top of the placing boxes 4, then the two ends of the pipe are placed in the two placing boxes 4, the cover plates 24 are loosened, the cover plates 24 vertically position the ends of the pipe through the elastic recovery of the springs 25, then the push bolt 26 is rotated to push and tighten the pipe, so that the stable clamping of the pipe is completed;
[0032] Then the fluorescent liquid is added into the liquid storage box 8 through the liquid adding cylinder 21 and the liquid guide pipe 22, so that the outer wall of the coating roller 10 can be stained with the fluorescent liquid when the supporting rod 9 drives the coating roller 10 to rotate, then the electric push rod 7 is started, and the coating roller 10 contacts the outer wall of the pipe;
[0033] Then the motor 14 is started, the sliding block 6 is started to rotate through the reciprocating lead screw 5, at the same time, the horizontal rod 3 is rotated through the transmission of the first belt pulley 11, the second belt pulley 2 and the belt 13, so that the pipe can be rotated, at the same time, the vertical rod 16 is rotated through the contact between the circular gear 19 and the rack 20 when the sliding block 6 moves horizontally, so that the supporting rod 9 drives the coating roller 10 to rotate through the cooperation of the first bevel gear 17 and the second bevel gear 18, so that the coating roller 10 can stably coat the fluorescent liquid on the pipe wall of the pipe, and the coating effect is guaranteed, then the pipe can be effectively detected through the cooperation of the flaw detector 1.
[0034] The above only describes some exemplary embodiments of the utility model in a descriptive manner, without doubt, for ordinary skilled in the art, the described embodiments can be modified in various different ways without deviating from the spirit and scope of the utility model. Therefore, the above drawings and description are illustrative in nature and should not be understood as limiting the scope of protection of the utility model claims.
Claims
1. A fluorescent magnetic particle flaw detector for pipe fittings, comprising a flaw detector (1) and a testing frame (2) fixedly disposed at the bottom of the flaw detector (1), characterized in that, The lower ends of both sides of the testing frame (2) are rotatably provided with crossbars (3), and the two crossbars (3) are fixed with a placement box (4) at one end close to each other. The lower end of the testing frame (2) is rotatably fitted with a reciprocating screw (5), and a slider (6) is threaded onto the rod wall of the reciprocating screw (5). The top of the slider (6) is fixedly fitted with a liquid storage box (8) via an electric push rod (7). A support rod (9) is rotatably fitted onto the upper end of the inner wall of the liquid storage box (8), and an applicator roller (10) is fixedly fitted onto the rod wall of the support rod (9). The applicator roller (10) is located inside the liquid storage box (8). The first pulley (11) and the second pulley (12) are fixedly sleeved on the walls of the crossbar (3) and the reciprocating screw (5), respectively. A belt (13) is provided between the first pulley (11) and the second pulley (12) for transmission. A motor (14) is fixedly installed on the outer wall of the detection frame (2). The output shaft of the motor (14) is fixedly connected to the reciprocating screw (5).
2. The fluorescent magnetic particle flaw detector for pipe fittings according to claim 1, characterized in that, A horizontal plate (15) is fixedly provided on the upper end of the outer wall of the slider (6). A vertical rod (16) is rotatably passed through the inside of the horizontal plate (15). A first bevel gear (17) is fixedly provided on the top of the vertical rod (16). A second bevel gear (18) is fixedly sleeved on the end of the support rod (9). The first bevel gear (17) and the second bevel gear (18) are configured to cooperate. A spur gear (19) is fixedly sleeved on the lower end of the vertical rod (16). A rack (20) is fixedly provided on the lower end of the inner wall of the detection frame (2). The spur gear (19) and the rack (20) are configured to cooperate.
3. The fluorescent magnetic particle flaw detector for pipe fittings according to claim 1, characterized in that, The upper part of the outer wall of the liquid storage box (8) is fixedly provided with a liquid filling cylinder (21), and a liquid guide pipe (22) is provided between the liquid filling cylinder (21) and the liquid storage box (8).
4. The fluorescent magnetic particle flaw detector for pipe fittings according to claim 1, characterized in that, The bottom of the slider (6) is fitted with multiple sliding balls (23).
5. The fluorescent magnetic particle flaw detector for pipe fittings according to claim 1, characterized in that, The upper side of the placement box (4) is slidably provided with a cover plate (24), and a spring (25) is sleeved on the outer wall of the cover plate (24). The two ends of the spring (25) are fixedly connected to the cover plate (24) and the placement box (4) respectively. A push bolt (26) is threaded through the bottom of the placement box (4).
6. The fluorescent magnetic particle flaw detector for pipe fittings according to claim 1, characterized in that, The liquid storage box (8) is a transparent liquid storage box.
Citation Information
Patent Citations
Fluorescent magnetic particle flaw detector for gasified pipe fitting
CN220399331U