Portable pipe end magnetic particle detection device

Abstract

The utility model relates to the technical field of detection devices, and discloses a portable pipe end magnetic particle detection device which comprises a two-way bolt, an adjusting disc and a concave-convex groove, an adjusting mechanism is arranged on the two-way bolt, an auxiliary mechanism is arranged on the adjusting mechanism, the adjusting mechanism comprises a reverse thread seat, and the reverse thread seat is connected with the adjusting disc. The reverse threaded seat is in threaded connection with the outer wall of the side face of the bidirectional bolt, the outer wall of the side face of the bidirectional bolt is in threaded connection with a forward threaded seat, movable rods are hinged to the inner walls of the two sides of the top and the bottom of the reverse threaded seat, supporting rods penetrate through the inner walls of the left side and the right side of each movable rod, and the outer wall of the side face of each supporting rod is fixedly connected with an insulating supporting seat. According to the utility model, the copper detection head and other structures are arranged, and an expansion structure is adopted, so that the detection probe is in contact with and always clings to the inner walls of pipe ports with different sizes, better magnetization and demagnetization treatment of the steel pipe end is realized, the magnetic powder detection efficiency of the steel pipe end is improved, and the product quality is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to detection device technical field especially relates to a portable pipe end magnetic particle detection device. BACKGROUND

[0002] Wet magnetic particle detection is to distribute magnetic suspension liquid on the surface of workpiece, use the flow of carrier liquid and the attraction of magnetic leakage field to magnetic particle to show the shape and size of defect, in wet detection, because of the dispersion and suspension performance of magnetic suspension liquid, the smaller magnetic particle can be used, therefore, it has higher detection sensitivity, especially suitable for detecting small surface defects, such as fatigue crack, grinding crack etc.

[0003] In the production process of steel pipe products, in the current mainstream nondestructive testing process, ultrasonic testing, magnetic flux leakage testing and eddy current testing, there is a certain length of detection blind area at both ends of the steel pipe, generally adopting pipe end blind area supplementing detection or cutting off the detection blind area method to ensure product quality, because pipe end blind area supplementing detection is beneficial to improve product yield, many manufacturers often adopt pipe end blind area supplementing detection process to improve product yield and economic benefits.

[0004] The pipe end magnetic particle detection device has the following defects, in many pipe end detection methods, the commonly used hand-held magnetic yoke type magnetic particle flaw detector is unstable in probe contact pressure due to the influence of pipe arc surface, which affects detection effect and efficiency, therefore, a portable pipe end magnetic particle detection device is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0005] In order to make up for the above shortcomings, the utility model provides a kind of portable pipe end magnetic particle detection device, to improve the problems of commonly used hand-held magnetic yoke type magnetic particle flaw detector in many pipe end detection methods, unstable in probe contact pressure due to the influence of pipe arc surface, which affects detection effect and efficiency in prior art.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: a kind of portable pipe end magnetic particle detection device, including two-way bolt, adjusting disc, concave and convex groove, adjusting mechanism is provided on the two-way bolt, auxiliary mechanism is provided on the adjusting mechanism, the adjusting mechanism includes reverse threaded seat, the reverse threaded seat is threadedly connected on the side surface outer wall of two-way bolt, the side surface outer wall of two-way bolt is threadedly connected with positive threaded seat, the top and bottom two sides inner wall of reverse threaded seat is hinged with movable rod, the left and right two sides inner wall of movable rod is penetrated with support rod, the side surface outer wall of support rod is fixedly connected with insulating support seat, the top outer wall of insulating support seat is clamped with copper detection head.

[0007] As a further description of the above technical solution: the auxiliary mechanism includes a sliding groove, the sliding groove is opened in the bottom side outer wall of the insulating support base, the bottom inner wall of the sliding groove is slidably connected with a push piece, the left side outer wall of the push piece is fixedly connected with a clamping plate, the bottom outer wall of the copper detection head is fixedly connected with a plug rod, the right side outer wall of the push piece is fixedly connected with a compression spring, and the bottom inner wall of the sliding groove is slidably connected with a secondary plate.

[0008] As a further description of the above technical solution: the movable rod has a plurality of movable rods, and the plurality of movable rods are hingedly connected to the side inner walls of the reverse threaded seat and the forward threaded seat.

[0009] As a further description of the above technical solution: the front side outer wall of the copper detection head is fixedly connected with a cable connecting line, and the top outer wall of the copper detection head is contactingly connected with a pipe port.

[0010] As a further description of the above technical solution: the forward threaded seat and the reverse threaded seat are symmetrical, and the side outer walls of the forward threaded seat and the reverse threaded seat are attached with a corrosion-resistant layer.

[0011] As a further description of the above technical solution: the clamping plate has two, and the two clamping plates are fixedly connected to the side outer walls of the secondary plate and the push piece, and the clamping plate is clamped to the side inner wall of the plug rod.

[0012] As a further description of the above technical solution: the plug rod penetrates through the bottom outer wall of the insulating support base, the left and right side outer walls of the push piece and the secondary plate are fixedly connected with a frosted pad, and the end of the compression spring away from the push piece is fixedly connected to the left side outer wall of the secondary plate.

[0013] As a further description of the above technical solution: the adjusting disc is fixedly connected to the top end outer wall of the bidirectional bolt, and the side outer wall of the adjusting disc is provided with a concave-convex groove.

[0014] The utility model has the advantages of:

[0015] 1. In the utility model, through the setting reverse threaded seat, copper detection head and other structures, adopt the expansion structure, make the detection probe contact always adhere to the inner wall of pipe port of different size, realize better magnetization and demagnetization treatment of steel pipe end, improve the steel pipe end magnetic particle detection efficiency, ensure the product quality.

[0016] 2. In the utility model, through the setting clamping plate, push piece, secondary plate and other structures, when the long -term use or single copper detection head needs to be maintained and is checked, single copper detection head and insulating support base are conveniently disassembled and separated, and copper detection head is conveniently maintained without using additional tools, thereby improving the maintenance and inspection efficiency. DRAWINGS

[0017] Figure 1The utility model provides a kind of portable pipe end magnetic particle detection device's overall front view schematic diagram is proposed in the utility model;

[0018] Figure 2 The utility model provides a kind of portable pipe end magnetic particle detection device's section view schematic diagram is proposed in the utility model;

[0019] Figure 3 The utility model provides a kind of portable pipe end magnetic particle detection device's adjusting mechanism schematic diagram is proposed in the utility model;

[0020] Figure 4 A kind of portable pipe end magnetic particle detection device's auxiliary mechanism schematic diagram is proposed in the utility model.

[0021] Legend:

[0022] 1, bidirectional bolt;2, adjusting disc;3, concave-convex groove;4, adjusting mechanism;41, reverse threaded seat;42, positive threaded seat;43, movable rod;44, support rod;45, insulating support seat;46, copper detection head;47, cable connecting line;48, pipe port;5, auxiliary mechanism;51, sliding slot;52, push piece;53, clamping plate;54, plug rod;55, compression spring;56, sub plate. Specific embodiments

[0023] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0024] Reference Figures 1-3 An embodiment provided by the utility model: a kind of portable pipe end magnetic particle detection device, including bidirectional bolt 1, adjusting disc 2, concave-convex groove 3, bidirectional bolt 1 is provided with adjusting mechanism 4, adjusting mechanism 4 is provided with auxiliary mechanism 5, adjusting mechanism 4 includes reverse threaded seat 41, reverse threaded seat 41 is threadedly connected in the side surface outer wall of bidirectional bolt 1, the side surface outer wall of bidirectional bolt 1 is threadedly connected with positive threaded seat 42, by setting bidirectional bolt 1 drives positive threaded seat 42 and reverse threaded seat 41 opposite or close to move adjustment, the top and bottom two sides inner wall of reverse threaded seat 41 are all hinged with movable rod 43, the left and right two sides inner wall of movable rod 43 is penetrated with support rod 44, the side surface outer wall of support rod 44 is fixedly connected with insulating support seat 45, the top outer wall of insulating support seat 45 is clamped with copper detection head 46, by setting copper detection head 46 and cable connecting line 47 mutually cooperate, pipe port 48 is magnetized and detected.

[0025] Reference Figures 2-4The movable rod 43 is hinged on the side inner wall of the reverse threaded seat 41 and the positive threaded seat 42, the front outer wall of the copper detection head 46 is fixedly connected with the cable connecting wire 47, the top outer wall of the copper detection head 46 is contactively connected with the pipe port 48, the positive threaded seat 42 is symmetrical with the reverse threaded seat 41, the side outer wall of the positive threaded seat 42 and the reverse threaded seat 41 is attached with the anticorrosion layer, the material of the anticorrosion layer is Dacromet coating which is composed of zinc, aluminum sheet and chromate, a dense coating is formed through high-temperature solidification, the salt mist test can reach more than 1000 hours, it is suitable for high anticorrosion demand field, reduces rusting and aging of the threaded seat, the adjusting disc 2 is fixedly connected on the top outer wall of the bidirectional bolt 1, the side outer wall of the adjusting disc 2 is provided with the concave-convex groove 3.

[0026] Referring to Figures 3-4 The auxiliary mechanism 5 comprises the sliding groove 51 which is provided on the bottom outer wall of the insulating support seat 45, the bottom inner wall of the sliding groove 51 is slidingly connected with the push piece 52, the left outer wall of the push piece 52 is fixedly connected with the clamping plate 53, the bottom outer wall of the copper detection head 46 is fixedly connected with the insertion rod 54, the right outer wall of the push piece 52 is fixedly connected with the compression spring 55, the compression spring 55 continuously pushes the push piece 52 and the secondary plate 56, the bottom inner wall of the sliding groove 51 is slidingly connected with the secondary plate 56, the clamping plate 53 is provided with two, the two clamping plates 53 are fixedly connected on the side outer wall of the secondary plate 56 and the push piece 52, the clamping plate 53 is clamped on the side inner wall of the insertion rod 54, the insertion rod 54 penetrates through the bottom outer wall of the insulating support seat 45, the left and right outer walls of the push piece 52 and the secondary plate 56 are fixedly connected with the frosted pad, the frosted pad increases the surface friction of the push piece 52 and the secondary plate 56, one end of the compression spring 55 away from the push piece 52 is fixedly connected on the left outer wall of the secondary plate 56.

[0027] Working principle: the bidirectional bolt 1 is put into the pipe port 48, then the movable rod 43 is simultaneously rotated by the hand of the personnel, and the adjusting disc 2 is rotated, so that the bidirectional bolt 1 is rotated to drive the reverse threaded seat 41 and the positive threaded seat 42 to approach each other, when the reverse threaded seat 41 and the positive threaded seat 42 approach each other, the insulating support seat 45 is driven to be moved outward, so that the insulating support seat 45 drives the copper detection head 46 to be attached to the side inner wall of the pipe port 48, then the personnel releases the hand, the inner wall of the pipe port 48 is magnetized and detected through the cooperation of the cable connecting wire 47 and the copper detection head 46, when a single copper detection head 46 needs to be maintained and repaired in long-term use, the clamping plate 53 is separated from the side inner wall of the insertion rod 54 by pulling the push piece 52 and the secondary plate 56, then the copper detection head 46 is separated from the insulating support seat 45 by rotating, so that the copper detection head 46 is conveniently maintained and replaced.

[0028] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A portable pipe end magnetic particle detection device comprising a bidirectional bolt (1), an adjusting disc (2), and a concave-convex groove (3), characterized in that: The bidirectional bolt (1) is provided with an adjusting mechanism (4), and the adjusting mechanism (4) is provided with an auxiliary mechanism (5); The adjusting mechanism (4) comprises a reverse threaded seat (41) which is threadedly connected to the side outer wall of the bidirectional bolt (1), the side outer wall of the bidirectional bolt (1) is threadedly connected with a forward threaded seat (42), the inner walls on the top and bottom of the reverse threaded seat (41) are both hingedly connected with movable rods (43), the inner walls on the left and right sides of the movable rods (43) are penetrated with supporting rods (44), the side outer wall of the supporting rod (44) is fixedly connected with an insulating support seat (45), and the top outer wall of the insulating support seat (45) is clamped with a copper detection head (46).

2. A portable pipe end magnetic particle testing device according to claim 1, characterized in that: The auxiliary mechanism (5) comprises a sliding groove (51) which is formed in the bottom outer wall of the insulating support seat (45), the bottom inner wall of the sliding groove (51) is slidably connected with a push piece (52), the left outer wall of the push piece (52) is fixedly connected with a clamping plate (53), the bottom outer wall of the copper detection head (46) is fixedly connected with a plug rod (54), the right outer wall of the push piece (52) is fixedly connected with a compression spring (55), and the bottom inner wall of the sliding groove (51) is slidably connected with a secondary plate (56).

3. A portable pipe end magnetic particle testing device according to claim 1, characterized in that: The movable rods (43) are a plurality of, and the plurality of movable rods (43) are hingedly connected to the side inner walls of the reverse threaded seat (41) and the forward threaded seat (42).

4. The portable pipe end magnetic particle testing device of claim 1, wherein: The front outer wall of the copper detection head (46) is fixedly connected with a cable connecting line (47), and the top outer wall of the copper detection head (46) is contactingly connected with a pipe port (48).

5. The portable pipe end magnetic particle testing device of claim 1, wherein: The forward threaded seat (42) and the reverse threaded seat (41) are symmetrical, and the side outer walls of the forward threaded seat (42) and the reverse threaded seat (41) are both attached with a corrosion-resistant layer.

6. A portable pipe end magnetic particle testing device according to claim 2, wherein: The clamping plates (53) are two, and the clamping plates (53) are fixedly connected to the side outer walls of the secondary plate (56) and the push piece (52), respectively, and the clamping plates (53) are clamped to the side inner walls of the plug rod (54).

7. A portable pipe end magnetic particle testing device according to claim 2, wherein: The plug rod (54) penetrates the bottom outer wall of the insulating support seat (45), the left and right outer walls of the push piece (52) and the secondary plate (56) are both fixedly connected with frosted pads, and one end of the compression spring (55) away from the push piece (52) is fixedly connected to the left outer wall of the secondary plate (56).

8. The portable pipe end magnetic particle detection apparatus according to claim 1, characterized by: The adjusting disc (2) is fixedly connected to the top end outer wall of the bidirectional bolt (1), and the side outer wall of the adjusting disc (2) is provided with a concave-convex groove (3).

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