A penetrant device for the penetrant testing of defects in metal components

By designing a permeation device that includes a water tank, a support platform, a fixed cylinder, and a rotating cylinder, the problem of the workpiece being difficult to remove automatically was solved, and the workpiece was automatically removed after permeation testing, thus improving the permeation efficiency.

CN224341457UActive Publication Date: 2026-06-09HEBEI HENGYI LIANCHENG SPECIAL EQUIP INSPECTION CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEBEI HENGYI LIANCHENG SPECIAL EQUIP INSPECTION CO LTD
Filing Date
2025-05-08
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

In existing technologies, after a metal workpiece is tested with a penetrating liquid, the workpiece is difficult to remove automatically, which can easily lead to damage to the parts and reduce work efficiency.

Method used

A permeation device comprising a water tank, a support platform, a fixed cylinder, and a rotating cylinder was designed. The relative movement of the fixed cylinder and the rotating cylinder drives the support platform to move stably up and down, thereby enabling the workpiece to be automatically removed from the permeation liquid surface and avoiding manual operation.

Benefits of technology

This technology enables the workpiece to be automatically removed from the penetrant surface after penetrant testing, preventing damage to the parts and improving penetrant efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a penetrant testing device for defects in metal components. It relates to the field of penetrant testing technology and includes: a water tank for holding penetrant; a support platform for placing the workpiece; a fixed cylinder on which the support platform slides vertically along its side wall; a rotating cylinder fitted around the fixed cylinder, with relative movement between the two; and a slide rail on the rotating cylinder that drives the support platform to move vertically up and down. The advantages of this utility model are that the relative movement of the fixed and rotating cylinders allows for stable up-and-down movement of the support platform; it ensures the workpiece does not tip over while automatically removing it from the penetrant surface, eliminating the need for manual removal and improving penetrant testing efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of penetrant testing technology, and more specifically, to a penetrant testing device for penetrant testing of defects in metal components. Background Technology

[0002] Penetrant testing of metal workpieces is a common method. In existing technologies, due to the depth of the penetrant and the large number of workpieces, manual retrieval is often required after penetrant testing. However, the penetrant-tested parts are difficult to remove, and direct dumping can easily damage the parts, making the process inconvenient and reducing work efficiency. Utility Model Content

[0003] To address the above deficiencies, this utility model provides a penetrant testing device for detecting defects in metal components, thus solving the aforementioned problems.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A penetrant testing device for defects in metal components, comprising:

[0006] Water tank, used to hold permeate;

[0007] A support platform is used to place workpieces.

[0008] The fixed cylinder and the support platform slide vertically along the side wall of the support platform;

[0009] The rotating drum is fitted outside the fixed drum, and the fixed drum and the rotating drum move relative to each other.

[0010] The slide rail is located on the rotating drum and drives the support platform to move up and down in a straight line.

[0011] Furthermore, it also includes a limiting component, which includes a support rod installed at the lower end of the water tank, a fixed cylinder installed on the support rod, and a hole at the bottom of the fixed cylinder for the flow of permeate; a sliding hole is opened on the side wall of the fixed cylinder, a sliding block is installed on the sliding hole, a support platform is installed on one side of the sliding block, and a limiting shaft is installed on the other side of the sliding block, with the limiting shaft inserted into the slide rail.

[0012] Furthermore, it includes a drive device, which includes a first bearing installed at the upper end of the fixed cylinder, a second bearing installed at the lower end of the fixed cylinder, one end of the rotating cylinder connected to the first bearing, the other end of the rotating cylinder connected to the second bearing, a slide rail provided on the side wall of the rotating cylinder, the slide rail being a slanted straight line, the angle between the intersection lines of adjacent slide rails being 90 degrees, and the angle between the slide rail and the vertical plane being 45 degrees.

[0013] By setting the slide rail to be a slanted straight line, the forward and reverse rotation of the rotating drum can drive the sliding block and the limit shaft to move up and down reciprocally.

[0014] Furthermore, there is a pair of first bearings and a pair of second bearings. The rotating cylinder is divided into an upper cylinder and a lower cylinder. A slide forms a gap between the upper cylinder and the lower cylinder. The slide is a continuous S-shape. The upper cylinder is connected to the first bearing, and the lower cylinder is connected to the second bearing.

[0015] The slide is designed as a continuous S-shape, which allows for continuous sliding with the sliding block, enabling the rotating drum to always rotate in one direction without the need for reciprocating rotation.

[0016] Furthermore, a rotary motor is installed at the top of the water tank, and a gear is installed on the output shaft of the rotary motor. Gear rings that mesh with the gears are provided at the top and bottom of the rotating drum.

[0017] Furthermore, two holes are made on the support platform.

[0018] The beneficial effects of this utility model are: through the relative movement of the fixed cylinder and the rotating cylinder, the support platform can be driven to move up and down stably; while ensuring that the workpiece will not tip over, it can be automatically removed from the surface of the permeate liquid, eliminating the need for manual removal and improving the permeation efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a penetrant testing device for detecting defects in metal components according to the present invention;

[0020] Figure 2 This is a top view of the cross-section of the rotating drum;

[0021] Figure 3 This is a schematic diagram of embodiment one of the slides;

[0022] Figure 4 This is a schematic diagram of embodiment two of the slide;

[0023] Figure 5 This is a partial longitudinal section schematic diagram of the limiting component;

[0024] Figure 6 This is an enlarged schematic diagram of the support platform;

[0025] In the diagram, 1. Water tank; 2. Permeate; 3. Support platform; 4. Fixed cylinder; 5. Rotating cylinder; 6. Slide rail; 11. Support rod; 12. Hole 1; 41. Sliding hole; 42. Sliding block; 43. Limiting shaft; 44. First bearing; 45. Second bearing; 46. Inclined straight line; 51. Upper cylinder; 52. Lower cylinder; 53. S-shape; 54. Rotary motor; 55. Gear; 56. Gear ring; 31. Hole 2. Detailed Implementation

[0026] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0027] This application provides a penetrant testing device for detecting defects in metal components. Please refer to [reference needed]. Figures 1-6 :include;

[0028] Water tank 1 is used to hold permeate 2;

[0029] Support platform 3, used to place workpieces;

[0030] Fixed cylinder 4, bearing platform 3 slides vertically along the side wall of bearing platform 3;

[0031] Rotating cylinder 5 is sleeved on the outside of fixed cylinder 4, and fixed cylinder 4 and rotating cylinder 5 move relative to each other.

[0032] Slide 6 is located on the rotating cylinder 5 and drives the support platform 3 to move up and down in a straight line.

[0033] In practical applications, the permeate 2 is delivered to the water tank 1, and then the workpiece is placed on the support platform 3, which is higher than the permeate 2. Then, the rotating drum 5 is controlled to rotate. The rotating drum 5 moves relative to the fixed drum 4, and the support platform 3 can move up and down in the vertical direction. The movement of the support platform 3 can be driven by the action of the rotating drum 5.

[0034] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 It also includes a limiting component, which includes a support rod 11 installed at the lower end of the water tank 1, a fixed cylinder 4 installed on the support rod 11, and a hole 12 at the bottom of the fixed cylinder 4 for the flow of permeate 2; a sliding hole 41 is opened on the side wall of the fixed cylinder 4, a sliding block 42 is installed on the sliding hole 41, a support platform 3 is installed on one side of the sliding block 42, and a limiting shaft 43 is installed on the other side of the sliding block 42, and the limiting shaft 43 is inserted into the slide rail 6.

[0035] In practical applications, the support rod 11 keeps the fixed cylinder 4 in a stable state, the hole 12 facilitates the movement of the permeate 2 into the cavity of the fixed cylinder 4, the sliding hole 41 ensures that the sliding block 42 and the support platform 3 can only move in the vertical direction, and the limiting shaft 43 can convert the rotational force generated by the slide rail 6 into the force that moves the sliding block 42 upward.

[0036] In this embodiment, four sets of sliding blocks 42, limiting shafts 43, and sliding holes 41 are provided and evenly distributed around the cylinder where the fixed cylinder 4 is located.

[0037] Example 1 of the rotating drum 5, refer to Figure 1 , Figure 2 , Figure 4The drive device includes a first bearing 44 installed on the upper end of the fixed cylinder 4, a second bearing 45 installed on the lower end of the fixed cylinder 4, one end of the rotating cylinder 5 connected to the first bearing 44, and the other end of the rotating cylinder 5 connected to the second bearing 45. The slide 6 is provided on the side wall of the rotating cylinder 5. The slide 6 is in the shape of a straight line 46. The angle between the intersection lines of adjacent slides 6 is 90 degrees, and the angle between the slide 6 and the vertical plane is 45 degrees.

[0038] In practical applications, the rotating drum 5 is a whole unit. The first bearing 44 and the second bearing 45 enable the rotating drum 5 to rotate stably. The slide 6 is set in the shape of a straight line 46. The forward and reverse rotation of the rotating drum 5 can drive the sliding block 42 and the limiting shaft 43 to move up and down reciprocally.

[0039] Example 2 of the rotating drum 5, refer to Figure 1 , Figure 2 , Figure 3 The first bearing 44 and the second bearing 45 are each provided in pairs. The rotating cylinder 5 is divided into an upper cylinder 51 and a lower cylinder 52. The slide 6 forms a gap between the upper cylinder 51 and the lower cylinder 52. The slide 6 is a continuous S-shape 53. The upper cylinder 51 is connected to the first bearing 44, and the lower cylinder 52 is connected to the second bearing 45.

[0040] In practical applications, the two first bearings 44 fix the upper cylinder 51 to rotate, and the second bearing 45 fixes the lower cylinder 52 to rotate. The slide 6 is set as a continuous S-shape 53, which can slide continuously with the sliding block 42. The rotating cylinder 5 can always rotate in one direction without reciprocating.

[0041] By controlling the specific shape of the S-shape 53, the up and down positions of the sliding block 42 can be determined. In this embodiment, there are four sliding blocks 42. The sliding blocks 42 on opposite sides are at the same height. Among the adjacent sliding blocks 42, one is at the highest position and the other is at the lowest position. That is, the purpose of alternating up and down in pairs can be achieved.

[0042] Reference Figure 1 and Figure 5 A rotary motor 54 is installed on the upper end of the water tank 1. A gear 55 is installed on the output shaft of the rotary motor 54. A toothed ring 56 that meshes with the gear 55 is provided at the upper and lower ends of the rotating drum 5.

[0043] In practical applications, the rotation of the rotary motor 54 can drive the gear 55 and the gear ring 56 to rotate, and the gear ring 56 can drive the rotating drum 5 to rotate.

[0044] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 The support platform 3 has a second hole 31, which facilitates the discharge of the permeate 2 from the support platform 3.

Claims

1. A penetrant testing device for detecting defects in metal components, characterized in that, include; Water tank (1), water tank (1) is used to hold permeate (2); The support platform (3) is used to place the workpiece; The fixed cylinder (4) and the bearing platform (3) slide vertically along the side wall of the bearing platform (3); Rotating cylinder (5) is sleeved on the outside of fixed cylinder (4), and the fixed cylinder (4) and rotating cylinder (5) move relative to each other; The slide (6) is located on the rotating cylinder (5) and drives the support platform (3) to move up and down in a straight line.

2. The penetrant testing device for detecting defects in metal components according to claim 1, characterized in that, It also includes a limiting component, which includes a support rod (11) installed at the lower end of the water tank (1), a fixed cylinder (4) installed on the support rod (11), and a hole (12) at the bottom of the fixed cylinder (4) for the flow of permeate (2); a sliding hole (41) is opened on the side wall of the fixed cylinder (4), a sliding block (42) is installed on the sliding hole (41), a support platform (3) is installed on one side of the sliding block (42), and a limiting shaft (43) is installed on the other side of the sliding block (42), and the limiting shaft (43) is inserted into the slide (6).

3. The penetrant testing device for detecting defects in metal components according to claim 2, characterized in that, The device includes a drive unit, which includes a first bearing (44) installed on the upper end of the fixed cylinder (4), a second bearing (45) installed on the lower end of the fixed cylinder (4), one end of the rotating cylinder (5) connected to the first bearing (44), the other end of the rotating cylinder (5) connected to the second bearing (45), a slide (6) provided on the side wall of the rotating cylinder (5), the slide (6) being a slanted straight line (46), the angle between the intersection lines of adjacent slides (6) being 90 degrees, and the angle between the slide (6) and the vertical plane being 45 degrees.

4. The penetrant testing device for detecting defects in metal components according to claim 2, characterized in that, A pair of first bearings (44) and second bearings (45) are provided. The rotating cylinder (5) is divided into an upper cylinder (51) and a lower cylinder (52). The slide (6) forms a gap between the upper cylinder (51) and the lower cylinder (52). The slide (6) is a continuous S-shape (53). The upper cylinder (51) is connected to the first bearing (44), and the lower cylinder (52) is connected to the second bearing (45).

5. A penetrant testing device for detecting defects in metal components according to claim 3 or 4, characterized in that, A rotary motor (54) is installed on the upper end of the water tank (1), and a gear (55) is installed on the output shaft of the rotary motor (54). The upper and lower ends of the drum (5) are each provided with a toothed ring (56) that meshes with the gear (55).

6. A penetrant testing device for detecting defects in metal components according to any one of claims 1-5, characterized in that, The support platform (3) has two holes (31).