Device for detecting adhesion performance of hot-dip galvanized layer of iron tower piece by stepping type precise drop hammer

Abstract

The utility model discloses a device for detecting the adhesion performance of a hot-dip galvanizing layer of an iron tower piece by stepping type precise drop hammers, and solves the problem of how to ensure that the distances of continuous five times of drop hammers are equal during on-site detection. A magnetic mold frame (9) shaped like a Chinese character'ri 'is attracted to the top end face of the detected angle steel piece (1), and the width of a middle partition plate strip (10) of the mold frame is 4 mm. The magnetic attraction seat (2) is a cuboid-shaped electromagnetic attraction seat, five long-strip-shaped middle partition plate embedding grooves (11) are formed in the bottom end face of the magnetic attraction seat in parallel at equal intervals, the width of each middle partition plate embedding groove (11) is 4 mm, and the magnetic attraction seat (2) is attracted to the top end face of a detected angle steel piece after being embedded into a frame of a mold frame. The middle partition plate strip is embedded into one of the five long-strip-shaped middle partition plate embedding grooves; through a drop hammer, the hammer blade (7) knocks on the surface of the angle steel piece to be detected to form a strip knocking mark (12) for detection.

Description

Technical Field

[0001] The utility model relates to a detection device for a hot-dip galvanized layer, in particular to a detection device for accurately dropping a hammer on the adhesion performance of the hot-dip galvanized layer on an iron tower component. Background Art

[0002] Before on-site assembly of transmission towers, the adhesion performance of the hot-dip galvanized coating on the tower components must be tested on-site. Only after passing the test can the tower assembly proceed. Existing techniques use adhesion testing instruments to perform this test. During testing, the component being tested is placed horizontally on the instrument's testing platform. A drop hammer on the instrument then strikes the component, and the test result is determined based on the striking marks. Because some towers are erected in uneven mountainous areas, the components being tested are typically large, heavy angle steel. Construction sites require the use of cranes, steel plates, crowbars, and other tools to horizontally position the large angle steel to ensure that the angle steel test surface remains at the same height as the test device base during testing. This testing method is difficult to implement on-site and poses numerous safety risks. Furthermore, some tower components are assembled separately before testing, making them impractical to test using existing instruments. Furthermore, existing adhesion testing instruments weigh approximately 9 kilograms, requiring frequent movement hundreds of times during testing, which limits testing efficiency.

[0003] The utility model patent with the patent number 2023231892442 and the name of the portable drop hammer detection device for the adhesion performance of the hot-dip galvanized layer of the iron tower component provides a detection technology solution that is directly placed and adsorbed on the surface of the iron tower angle steel so that the instrument will not move arbitrarily, thereby shortening the detection time and improving work efficiency; However, according to the drop hammer detection specification for the adhesion performance of the hot-dip galvanized layer of the iron tower component: When the drop hammer test is carried out on site, the hammer needs to be dropped at intervals of not less than five times, and the spacing between adjacent marks on the hot-dip galvanized layer of the iron tower component by the drop hammer must be uniform. The quality of the hot-dip galvanized layer of the tower component is basically standardized by regulating the smash marks and the spacing between the smash marks. According to the specification, the adhesion performance of the hot-dip galvanized layer of the tower component is judged by observing five consecutive smash marks. Therefore, how to ensure that the spacing between five consecutive hammers is equal during on-site testing has become an important factor affecting the test results. Summary of the Invention

[0004] The utility model provides a device for detecting the adhesion performance of the hot-dip galvanized layer of an iron tower component by a step-by-step precise drop hammer, which solves the technical problem of how to ensure that the intervals between five consecutive drops of the hammer are equal during on-site detection.

[0005] The present utility model solves the above technical problems through the following technical solutions:

[0006] A detection device for the adhesion performance of the hot-dip galvanized layer of iron tower parts with a step-by-step precise drop hammer, comprising a detected angle steel part, a magnetic adsorption seat, and a hammer handle. A limiting U-shaped block is fixedly connected to the right side surface of the magnetic adsorption seat. The U-shaped opening of the limiting U-shaped block is horizontally oriented to the right. A pin shaft is arranged in the U-shaped opening of the limiting U-shaped block. One end of the hammer handle is hinged to the pin shaft. A hammer head is arranged at the other end of the hammer handle, and a hammer blade is arranged at the front end of the hammer head; the detected angle steel part is horizontally placed. A magnetic "day" - shaped mold frame is adsorbed on the top surface of the detected angle steel part. The width of the middle partition strip of the mold frame is 4 millimeters; the magnetic adsorption seat is a cuboid electromagnetic adsorption seat. Five long strip-shaped middle partition embedding grooves are arranged on the bottom surface of the magnetic adsorption seat parallel to each other and at equal intervals. The width of the middle partition embedding grooves is 4 millimeters. After the magnetic adsorption seat is embedded into the frame of the mold frame, it is adsorbed on the top surface of the detected angle steel part, and the middle partition strip is embedded into one of the five long strip-shaped middle partition embedding grooves; through the drop hammer, the hammer blade strikes out a long strip-shaped knocking mark for detection on the surface of the detected angle steel part.

[0007] A magnetic force switch is arranged on the top surface of the magnetic adsorption seat, and the magnetic adsorption force of the magnetic adsorption seat can be controlled through the magnetic force switch.

[0008] The magnetic adsorption seat of the drop hammer mechanism of the present utility model realizes step-by-step equidistant movement through the cooperation with the magnetic "day" - shaped mold frame, completes the task of continuously and intermittently knocking out five knocking marks required by the detection specification, greatly improves the quality of the knocking marks used to judge the adhesion performance of the hot-dip galvanized layer of iron tower parts, and improves the judgment accuracy of whether the adhesion performance is qualified. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 is a schematic structural diagram of the present utility model before the drop hammer;

[0010] Figure 2 is a schematic structural diagram of the present utility model in the front view direction after the drop hammer;

[0011] Figure 3 is a schematic structural diagram of the present utility model in the top view direction after the drop hammer;

[0012] Figure 4 is a schematic structural diagram of the drop hammer mechanism of the present utility model in the bottom view direction;

[0013] Figure 5 is a schematic structural diagram of the mold frame 9 of the present utility model. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0014] The present utility model will be described in detail below with reference to the accompanying drawings:

[0015] A detection device for the adhesion performance of the hot-dip galvanized layer of iron tower components with a step-by-step precise drop hammer, including the detected angle steel component 1, a magnetic adsorption seat 2, and a hammer handle 5. On the right side vertical surface of the magnetic adsorption seat 2, a limiting U-shaped block 3 is fixedly connected. The U-shaped opening of the limiting U-shaped block 3 is horizontally oriented to the right. The cuboid-shaped magnetic adsorption seat 2 and the limiting U-shaped block 3 together form the base of the drop hammer mechanism. A pin shaft 4 is arranged in the U-shaped opening of the limiting U-shaped block 3. Bearings can be arranged at both ends of the pin shaft 4, and the end of the pin shaft 4 is arranged in the inner ring of the bearing. The outer ring of the bearing is arranged on the two side walls of the U-shaped opening of the limiting U-shaped block 3, making the rotation of the pin shaft smoother, effectively reducing the friction between the hammer handle and the U-shaped side wall, ensuring the hammering force, and at the same time reducing the left and right swing of the hammer handle. One end of the hammer handle 5 is hinged to the pin shaft 4, and a hammer head 6 is arranged at the other end of the hammer handle 5. A "one" - shaped hammer blade 7 is arranged at the front end of the hammer head 6; the detected angle steel component 1 is horizontally placed, and a magnetic "day" - shaped mold frame 9 is adsorbed on the top surface of the detected angle steel component 1. The width of the middle partition strip 10 of the mold frame 9 is 4 mm. The mold frame 9 has magnetism and can be stably adsorbed on the detected angle steel component 1; the magnetic adsorption seat 2 is a cuboid-shaped electromagnetic adsorption seat. On the bottom surface of the magnetic adsorption seat 2, five long strip-shaped middle partition embedding grooves 11 are arranged parallel to each other at equal intervals. The width of the middle partition embedding grooves 11 is 4 mm. After the magnetic adsorption seat 2 is embedded into the frame of the mold frame 9, it is adsorbed on the top surface of the detected angle steel component 1, and the middle partition strip 10 is embedded into one of the five long strip-shaped middle partition embedding grooves 11; through the drop hammer, the hammer blade 7 knocks out a long strip-shaped knocking mark 12 for detection on the surface of the detected angle steel component 1.

[0016] A magnetic force switch 8 is arranged on the top surface of the magnetic adsorption seat 2. When the magnetic force switch 8 is turned on, the magnetic adsorption seat 2 generates magnetic attraction force, and the magnetic adsorption seat 2 is adsorbed on the detected angle steel component 1 through the magnetic attraction force. When the magnetic force switch 8 is turned off, the magnetic attraction force of the magnetic adsorption seat 2 disappears, and the magnetic adsorption seat 2 can be easily removed from the detected angle steel component 1.

[0017] The on-site detection steps are as follows:

[0018] First step: Horizontally place the detected angle steel component 1 on the ground and determine the drop hammer knocking detection position.

[0019] Second step: Adsorb the "day" - shaped mold frame 9 on the top surface of the detected angle steel component 1 to the left of the determined drop hammer knocking detection position.

[0020] Third step: Place the magnetic adsorption seat 2 of the drop hammer mechanism into the frame of the "day" - shaped mold frame 9, and make the middle partition strip 10 be embedded into the leftmost one of the five long strip-shaped middle partition embedding grooves 11 arranged parallel to each other at equal intervals on the bottom surface of the magnetic adsorption seat 2.

[0021] Step 4: After turning on the magnetic switch 8 and the magnetic suction seat 2 generates magnetic suction force, it is tightly adsorbed on the top surface of the detected angle steel part 1 in the frame of the mold frame 9;

[0022] Step 5: Rotate the hammer handle 5 to a position perpendicular to the detected angle steel part 1. Then, rotate the hammer head 6 clockwise. After the hammer head 6 rotates 90 degrees, the "one" - shaped hammer blade 7 strikes the first long strip - shaped knocking mark 12 on the top surface of the detected angle steel part 1;

[0023] Step 5: Turn off the magnetic switch 8. The magnetic suction seat 2 loses magnetic suction force. Take out the drop - hammer mechanism from the frame of the mold frame 9, and make the middle partition strip 10 disengage from the embedding groove of the left - most middle partition;

[0024] Step 6: Move the drop - hammer mechanism to the left. Then, place it again into the frame of the "day" - shaped mold frame 9, and make the middle partition strip 10 embed into the second left - hand middle partition embedding groove among the five long - strip - shaped middle partition embedding grooves 11 that are arranged parallel and equidistantly on the bottom surface of the magnetic suction seat 2;

[0025] Step 7: Rotate the hammer handle 5 to a position perpendicular to the detected angle steel part 1. Then, rotate the hammer head 6 clockwise. After the hammer head 6 rotates 90 degrees, the "one" - shaped hammer blade 7 strikes the second long strip - shaped knocking mark on the top surface of the detected angle steel part 1. Since the whole drop - hammer mechanism moves 4 mm to the left, the distance between the second long strip - shaped knocking mark and the first long strip - shaped knocking mark 12 is also 4 mm;

[0026] Step 8: Repeat the steps from Step 5 to Step 7 repeatedly. Five long strip - shaped knocking marks are formed on the top surface of the detected angle steel part 1, and the five long strip - shaped knocking marks are set at an equal interval of 4 mm.

[0027] Step 9: According to the specification requirements, by observing the five long strip - shaped knocking marks, draw a conclusion on whether the adhesion performance of the hot - dip galvanized layer of the iron tower parts is qualified.

Claims

1. A device for detecting the adhesion performance of a hot-dip galvanized layer of an iron tower member by a step-by-step precision drop hammer, comprising an angle steel member to be detected (1), a magnetic seat (2) and a hammer handle (5), wherein a limiting U-shaped block (3) is fixedly connected to the right side elevation of the magnetic seat (2), the U-shaped opening of the limiting U-shaped block (3) is horizontally arranged to the right, a pin shaft (4) is arranged in the U-shaped opening of the limiting U-shaped block (3), one end of the hammer handle (5) is hinged on the pin shaft (4), a hammer head (6) is arranged at the other end of the hammer handle (5), and a hammer blade (7) is arranged at the front end of the hammer head (6); characterized in that, The detected angle steel part (1) is placed horizontally, and a magnetic "day"-shaped die frame (9) is adsorbed on the top surface of the detected angle steel part (1). The width of the middle partition strip (10) of the die frame (9) is 4 mm. The magnetic suction seat (2) is a cuboid electromagnetic suction seat. Five long strip-shaped middle partition embedding grooves (11) are arranged on the bottom surface of the magnetic suction seat (2) parallel to each other and at equal intervals. The width of the middle partition embedding grooves (11) is 4 mm. After the magnetic suction seat (2) is embedded into the frame of the die frame (9), it is adsorbed on the top surface of the detected angle steel part (1), and the middle partition strip (10) is embedded into one of the five long strip-shaped middle partition embedding grooves (11). Through a drop hammer, a long strip-shaped percussion mark (12) for detection is struck on the surface of the detected angle steel part (1) by the hammer blade (7).

2. The device for detecting the adhesion performance of the hot-dip galvanized layer of an iron tower member using a step-by-step precision drop hammer according to claim 1, characterized in that: A magnetic force switch (8) is arranged on the top surface of the magnetic suction seat (2), and the magnetic suction force of the magnetic suction seat (2) can be controlled through the magnetic force switch (8).

Images