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CN-224231696-U - Magnetic powder detection device for pipeline weld joint detection

CN224231696UCN 224231696 UCN224231696 UCN 224231696UCN-224231696-U

Abstract

The application discloses a magnetic powder detection device for detecting a pipeline weld joint, which belongs to the technical field of pipeline weld joint detection and comprises an operation table, a frame fixedly arranged on the operation table, a supporting mechanism arranged on the operation table and used for supporting and rotating a pipeline, a spray head fixedly arranged on the frame and used for spraying magnetic powder liquid on the pipeline, and a magnetic yoke flaw detector fixedly arranged on the frame and corresponding to the position above the spray head, and further comprises a soft hair brush head arranged on one side of the operation table corresponding to the upper side of the supporting mechanism and used for brushing the magnetic powder liquid on the surface of the pipeline. According to the magnetic powder detection device for the pipeline welding seam detection, the rotating soft hair brush head is arranged to brush the pipe body of the sprayed magnetic powder liquid, so that the magnetic powder liquid can be ensured to be uniformly covered on the surface of the pipe body, the welding seam and the narrow or complex-shaped part can be fully exposed, the detection accuracy and the detection comprehensiveness are improved, and the detection omission possibility is reduced.

Inventors

  • HAN SHANGLIN
  • HE ZHUANG
  • ZHAO QIGANG
  • Yao jintan

Assignees

  • 天津市达安特工程检测有限公司

Dates

Publication Date
20260512
Application Date
20250427

Claims (7)

  1. 1. The magnetic powder detection device for detecting the pipeline welding line comprises an operation table (1), a frame (2) fixedly arranged on the operation table (1), a supporting mechanism (3) arranged on the operation table (1) and used for supporting and rotating a pipeline body, a spray head (4) fixedly arranged on the frame (2) and used for spraying magnetic powder liquid on the pipeline body, and a magnetic yoke flaw detector (5) fixedly arranged on the frame (2) and corresponding to the position above the spray head (4); The magnetic powder detection device is characterized by further comprising a soft brush head (6) which is arranged on the operating platform (1) and corresponds to one side above the supporting mechanism (3) and used for brushing magnetic powder liquid on the surface of the tube body, and a transmission assembly (7) which is arranged on the frame (2) and used for transmitting the power of the supporting mechanism (3) to the soft brush head (6) so as to enable the soft brush head (6) to rotate.
  2. 2. The magnetic powder detection device for detecting the welding line of the pipeline according to claim 1, wherein the supporting mechanism (3) comprises mounting seats (31) symmetrically and fixedly arranged on the operating platform (1) at positions corresponding to the lower parts of the spray heads (4), roll shafts (32) respectively rotatably connected to the two mounting seats (31) and used for supporting the pipe body, a connecting shaft (33) rotatably connected to one side of the frame (2) and fixedly connected with one roll shaft (32), and a motor (34) fixedly arranged on the frame (2) and fixedly connected with the connecting shaft (33), and the soft brush head (6) is positioned at the upper position of one roll shaft (32).
  3. 3. The magnetic powder detection device for detecting the welding line of the pipeline according to claim 2, wherein the transmission assembly (7) comprises a transmission shaft (71) which is rotatably connected to the frame (2) at a position corresponding to the upper position of the connecting shaft (33) and fixedly connected with one end of the soft brush head (6), a synchronous pulley (72) which is fixedly sleeved on the transmission shaft (71) and the connecting shaft (33) and is close to one end of the frame (2) respectively, and synchronous toothed belts (73) which are arranged on the two synchronous pulleys (72), and the two synchronous pulleys (72) are connected through the synchronous toothed belts (73) and transmit power.
  4. 4. A magnetic powder detection device for detecting a pipeline weld seam according to claim 3, wherein the transmission assembly (7) further comprises a protection box (74) fixedly arranged on the frame (2) and covered on the outer sides of the synchronous pulley (72) and the synchronous toothed belt (73), and the transmission shaft (71) and the connecting shaft (33) penetrate through the protection box (74) and are rotationally connected to the protection box (74).
  5. 5. The magnetic powder detection device for detecting the welding seam of the pipeline according to claim 2, wherein the magnetic powder detection device further comprises a protection piece (8) fixedly arranged on one side, away from the roll shaft (32), of the operation table (1) corresponding to the soft bristle brush head (6) and used for blocking magnetic powder liquid.
  6. 6. A magnetic powder detection device for detecting a pipeline weld seam according to claim 5, wherein the protection piece (8) comprises brackets (81) symmetrically and fixedly arranged on the operation table (1) and positioned at two ends of the soft brush head (6), and a baffle plate (82) fixedly arranged between the two brackets (81) and positioned at one side of the soft brush head (6), and two ends of the soft brush head (6) are respectively and rotatably connected to the two brackets (81).
  7. 7. A magnetic particle testing apparatus for detecting welded seams of pipes according to claim 6, wherein said baffle (82) is an magnifying lens.

Description

Magnetic powder detection device for pipeline weld joint detection Technical Field The application relates to the technical field of pipeline weld joint detection, in particular to a magnetic powder detection device for pipeline weld joint detection. Background The quality of the weld is directly related to the safety and reliability of the overall piping system during pipe manufacturing and installation. Therefore, accurate and comprehensive detection of the pipe weld is of great importance. The magnetic powder detection is used as an important nondestructive detection method, and is widely applied to pipeline weld detection due to the advantages of high detection sensitivity, simplicity and convenience in operation, low cost and the like. The Chinese patent publication No. CN210015080U discloses a magnetic powder flaw detector for detecting seamless steel pipes. The magnetic suspension spraying device sprays magnetic suspension and ultraviolet irradiates the spraying part through the linked irradiation mechanism and the spraying part, synchronously shoots the spraying part, can directly finish workpiece magnetic powder flaw detection, does not need personnel intervention, and improves the working efficiency. However, the magnetic powder liquid is applied only by spraying, and because the magnetic powder liquid is usually composed of magnetic powder and a liquid solvent, when spraying, if the liquid fluidity is strong or the spraying is uneven, a thicker coating can be easily formed in a part of the region, a thinner coating can be formed in other places, even the condition of no coverage exists, particularly in some narrow or complex-shaped parts, the non-uniformity can directly influence the full exposure of the magnetic powder to welding seams and potential defects, so that the detection effect of the defects is weakened, and the risk of missed detection is increased. Accordingly, the present application provides a magnetic particle inspection apparatus for inspecting a weld of a pipe, so as to solve the above-mentioned problems. Disclosure of utility model The application provides a magnetic powder detection device for pipeline weld joint detection, and aims to solve the problems that the existing magnetic powder detection device provided in the background art is automatic and efficient, but a magnetic powder liquid spraying mode is easy to cause uneven coating, especially in narrow or complex parts, the detection omission risk is easy to increase and the like. The magnetic powder detection device for detecting the welding line of the pipeline comprises an operation table, a frame fixedly arranged on the operation table, a supporting mechanism arranged on the operation table and used for supporting and rotating a pipeline, a spray head fixedly arranged on the frame and used for spraying magnetic powder liquid on the pipeline, and a magnetic yoke flaw detector fixedly arranged on the frame and corresponding to the position above the spray head; The magnetic powder detection device also comprises a soft brush head which is arranged on the operating platform and corresponds to one side above the supporting mechanism and used for brushing magnetic powder liquid on the surface of the tube body, and a transmission component which is arranged on the frame and used for transmitting the power of the supporting mechanism to the soft brush head so as to enable the soft brush head to rotate; through setting up rotatory soft hair brush head and brushing the body of spraying back magnetic powder liquid, can ensure that the magnetic powder liquid can evenly cover on the body surface for welding seam and narrow or complex shape's position can fully expose, this helps the magnetic powder to adsorb in welding seam defect part better, improves accuracy and the comprehensiveness that detects, has reduced the possibility of missing and has examined, and the design of drive assembly makes soft hair brush head can be when supporting mechanism supports rotatory to the pipe body synchronous rotation simultaneously, need not extra power supply, and this has not only simplified operation flow, has still reduced the energy consumption. Preferably, in order to realize the support and rotation of the pipe body, the support mechanism comprises mounting seats symmetrically and fixedly mounted on the operation table and corresponding to the lower positions of the spray heads, roll shafts respectively and rotatably connected to the two mounting seats and used for supporting the pipe body, a connecting shaft rotatably connected to one side of the frame and fixedly connected with one of the roll shafts, and a motor fixedly mounted on the frame and fixedly connected with the connecting shaft, wherein the soft brush head is positioned at the upper position of one of the roll shafts, and the two mounting seats, the two roll shafts, the connecting shaft and the motor are combined to realize the support of the pipe body through the two roll s