Vibration reduction mechanism of eddy current flaw detector

Abstract

The utility model discloses a vibration reduction mechanism of an eddy current flaw detector, and belongs to the technical field of flaw detection. Comprising the following steps: mounting a rack; the first lead screw is rotationally connected to the mounting rack; the guide rail is fixedly connected to the mounting rack; the two groups of guide rails are symmetrically arranged on the mounting rack; the first sliding block is slidably connected to the guide rail; the mounting frame is fixedly connected to the first sliding block; the second sliding block is slidably connected to the guide rail; the mounting plate is fixedly connected to the second sliding block; the upper fixing plate is fixedly connected to the mounting plate; the lower fixing plate is fixedly connected to the mounting plate; the flaw detector is fixedly connected to the lower fixing plate; according to the utility model, the high-rigidity steel frame with good vibration damping performance is selected as the frame body, so that the vibration damping performance of the mounting frame is improved; meanwhile, a high-performance rectangular spiral spring and a precision-grade high-rigidity linear guide rail are arranged, so that a gap of a movement mechanism is eliminated; the influence of vibration on the eddy current detector is reduced, and the precision of the eddy current flaw detector is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of defect detection, in particular to a vibration reduction mechanism of an eddy current flaw detector. Background Art

[0002] Eddy current flaw detection is a flaw detection method that uses the principle of electromagnetic induction to detect surface defects of components and metal materials. In the prior art, eddy current flaw detectors are generally used to detect surface defects.

[0003] However, the flaw detection equipment in the prior art still has certain shortcomings when in use. When the flaw detector in the prior art moves, there are problems such as uneven dynamic balance of components, large gaps in the moving mechanism, and poor vibration reduction performance of the material selected for parts. At the same time, the springs and additional counterweights on the existing device may easily produce additional movement, which will increase the impact of vibration on the eddy current detector. The flaw detection accuracy needs to be further improved. Utility Model Content

[0004] The utility model aims to solve the problems raised in the above-mentioned background technology and proposes a vibration reduction mechanism for an eddy current flaw detector.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A vibration reduction mechanism for an eddy current flaw detector, comprising:

[0007] Install the rack;

[0008] A first screw rod is rotatably connected to the mounting frame;

[0009] A guide rail, fixedly connected to the mounting rack;

[0010] The two groups of guide rails are symmetrically arranged on the mounting frame;

[0011] A first sliding block is slidably connected to the guide rail;

[0012] A mounting frame fixedly connected to the first sliding block;

[0013] A second sliding block is slidably connected to the guide rail;

[0014] The second slider is located directly below the first slider;

[0015] A mounting plate fixedly connected to the second slider;

[0016] An upper fixing plate, fixedly connected to the mounting plate;

[0017] A lower fixing plate, fixedly connected to the mounting plate, and the lower fixing plate is located directly below the upper fixing plate;

[0018] The flaw detector is fixedly connected to the lower fixing plate.

[0019] Preferably, a front fixing plate and a rear fixing plate are fixedly connected to the mounting frame, the front fixing plate and the rear fixing plate are symmetrically arranged, the rear fixing plate is fixedly connected to a first guide shaft, a box-type slider is slidably connected to the first guide shaft, and the box-type slider is fixedly connected to the upper fixing plate.

[0020] Furthermore, a cylinder is fixedly connected to the lower fixing plate, and a top end of the cylinder is fixedly connected to the upper fixing plate.

[0021] Furthermore, the mounting plate and the upper fixing plate are arranged vertically, and a reinforcing plate is arranged at the angle between the mounting plate and the upper fixing plate.

[0022] Preferably, a fixing seat is fixedly connected to the side wall of the mounting frame, a second guide shaft is fixedly connected to the fixing seat, a bushing is fixedly connected to the lower fixing plate, and one end of the second guide shaft away from the fixing seat is connected to the bushing.

[0023] Furthermore, a coil spring is sleeved on the second guide shaft.

[0024] Furthermore, a screw seat is fixedly connected to the front fixed plate, a ball bearing is connected to the screw seat, a second screw is rotatably connected to the front fixed plate, the second screw matches the screw seat, a nut is connected to the second screw, and a hand wheel is connected to the nut.

[0025] Furthermore, the first screw rod and the second screw rod are both trapezoidal screw rods.

[0026] Compared with the prior art, the utility model provides a vibration reduction mechanism for an eddy current flaw detector, which has the following beneficial effects:

[0027] The parts not involved in the device are the same as the existing technology or can be implemented by the existing technology. The utility model increases the vibration reduction performance of the installation frame by selecting a high-rigidity steel frame with good vibration reduction performance as the frame; at the same time, it is equipped with high-performance rectangular coil springs and precision-grade high-rigidity linear guides to eliminate the gap of the moving mechanism; reduce the influence of vibration on the eddy current detector, and improve the accuracy of the eddy current flaw detector. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a front view structural schematic diagram of a vibration reduction mechanism of an eddy current flaw detector proposed by the utility model;

[0029] Figure 2 It is a side view structural schematic diagram of a vibration reduction mechanism of an eddy current flaw detector proposed by the utility model;

[0030] Figure 3 This is an exploded view of a vibration reduction mechanism of an eddy current flaw detector proposed by the utility model;

[0031] Figure 4 The utility model provides a vibration reduction mechanism for an eddy current flaw detector. Figure 3 Enlarged view of part A.

[0032] In the figure: 1. mounting frame; 2. spherical bearing; 3. first screw rod; 4. guide rail; 401. second slider; 5. mounting frame; 6. first slider; 7. lower fixing plate; 8. flaw detector; 9. mounting plate; 10. reinforcing plate; 11. spiral spring; 12. second guide shaft; 13. fixing seat; 14. front fixing plate; 15. rear fixing plate; 16. box-type slider; 17. first guide shaft; 18. cylinder; 19. bushing; 20. hand wheel; 21. nut; 22. second screw rod; 23. screw rod seat; 24. ball bearing; 25. screw; 26. upper fixing plate. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0034] Embodiment 1:

[0035] Reference Figure 1-Figure 4 , a vibration reduction mechanism for an eddy current flaw detector, comprising:

[0036] Install rack 1;

[0037] The spherical bearing 2 is fixedly connected to the mounting frame 1 by screws 25;

[0038] The first screw rod 3 is rotatably connected to the mounting frame 1, and the first screw rod 3 matches the spherical bearing 2;

[0039] The guide rail 4 is fixedly connected to the mounting frame 1;

[0040] Two sets of guide rails 4 are symmetrically arranged on the mounting frame 1;

[0041] A first slider 6 is slidably connected to the guide rail 4;

[0042] A mounting frame 5, fixedly connected to the first slide block 6;

[0043] A second slider 401 is slidably connected to the guide rail 4;

[0044] The second slider 401 is located directly below the first slider 6;

[0045] A mounting plate 9, fixedly connected to the second slider 401;

[0046] An upper fixing plate 26, fixedly connected to the mounting plate 9;

[0047] The lower fixing plate 7 is fixedly connected to the mounting plate 9, and the lower fixing plate 7 is located directly below the upper fixing plate 26;

[0048] The flaw detector 8 is fixedly connected to the lower fixing plate 7.

[0049] Reference Figure 2 , Figure 3 , through the first screw rod 3 and the guide rail 4, the flaw detector 8 can be adjusted to move up and down during use;

[0050] Reference Figure 3 , the box-type slider 16 is provided to slide on the first guide shaft 17, so that the forward and backward movement can be adjusted;

[0051] The mounting frame 1 is a steel frame. By selecting a high-rigidity steel frame with good vibration reduction performance as the frame body, the vibration reduction performance of the mounting frame 1 is increased; at the same time, it is equipped with a high-performance rectangular coil spring 11 and a precision-grade high-rigidity linear guide 4 to eliminate the gap of the motion mechanism; reduce the influence of vibration on the eddy current detector, and improve the accuracy of the eddy current flaw detector.

[0052] A front fixing plate 14 and a rear fixing plate 15 are fixedly connected to the mounting frame 5, and the front fixing plate 14 and the rear fixing plate 15 are symmetrically arranged. A first guide shaft 17 is fixedly connected to the rear fixing plate 15, and a box-type slider 16 is slidably connected to the first guide shaft 17. The box-type slider 16 and the upper fixing plate 26 are fixedly connected.

[0053] The lower fixing plate 7 is fixedly connected with a cylinder 18 , and the top of the cylinder 18 is fixedly connected with the upper fixing plate 26 .

[0054] Reference Figure 2 , Figure 3 By setting the cylinder 18, the flaw detector 8 can be adjusted up and down for a second time.

[0055] The mounting plate 9 and the upper fixing plate 26 are arranged vertically, and a reinforcing plate 10 is arranged at an angle between the mounting plate 9 and the upper fixing plate 26 .

[0056] A fixing seat 13 is fixedly connected to the side wall of the mounting frame 5 , a second guide shaft 12 is fixedly connected to the fixing seat 13 , a bushing 19 is fixedly connected to the lower fixing plate 7 , and one end of the second guide shaft 12 away from the fixing seat 13 is connected to the bushing 19 .

[0057] The second guide shaft 12 is sleeved with a coil spring 11 .

[0058] A screw seat 23 is fixedly connected to the front fixing plate 14 , a ball bearing 24 is connected to the screw seat 23 , a second screw 22 is rotatably connected to the front fixing plate 14 , the second screw 22 matches the screw seat 23 , a nut 21 is connected to the second screw 22 , and a hand wheel 20 is connected to the nut 21 .

[0059] The first screw rod 3 and the second screw rod 22 are both trapezoidal screw rods.

[0060] The above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed by the present invention according to the technical solution and inventive concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A vibration reduction mechanism for an eddy current flaw detector, characterized in that: include: Installing a rack (1); A first screw rod (3) is rotatably connected to the mounting frame (1); A guide rail (4) fixedly connected to the mounting frame (1); The two groups of guide rails (4) are symmetrically arranged on the mounting frame (1); A first sliding block (6) is slidably connected to the guide rail (4); A mounting frame (5) fixedly connected to the first sliding block (6); A second sliding block (401) is slidably connected to the guide rail (4); The second sliding block (401) is located directly below the first sliding block (6); A mounting plate (9) fixedly connected to the second sliding block (401); An upper fixing plate (26) fixedly connected to the mounting plate (9); A lower fixing plate (7) is fixedly connected to the mounting plate (9), and the lower fixing plate (7) is located directly below the upper fixing plate (26); The flaw detector (8) is fixedly connected to the lower fixing plate (7).

2. The vibration reduction mechanism of an eddy current flaw detector according to claim 1, characterized in that: A front fixing plate (14) and a rear fixing plate (15) are fixedly connected to the mounting frame (5), the front fixing plate (14) and the rear fixing plate (15) are symmetrically arranged, a first guide shaft (17) is fixedly connected to the rear fixing plate (15), a box-type slider (16) is slidably connected to the first guide shaft (17), and the box-type slider (16) and the upper fixing plate (26) are fixedly connected.

3. The vibration reduction mechanism of an eddy current flaw detector according to claim 2, characterized in that: The lower fixed plate (7) is fixedly connected to a cylinder (18), and the top end of the cylinder (18) is fixedly connected to the upper fixed plate (26).

4. The vibration reduction mechanism of an eddy current flaw detector according to claim 2, characterized in that: The mounting plate (9) and the upper fixing plate (26) are arranged vertically, and a reinforcing plate (10) is arranged at the angle between the mounting plate (9) and the upper fixing plate (26).

5. The vibration reduction mechanism of an eddy current flaw detector according to claim 1, characterized in that: A fixing seat (13) is fixedly connected to the side wall of the mounting frame (5), a second guide shaft (12) is fixedly connected to the fixing seat (13), a bushing (19) is fixedly connected to the lower fixing plate (7), and an end of the second guide shaft (12) away from the fixing seat (13) is connected to the bushing (19).

6. The vibration reduction mechanism of an eddy current flaw detector according to claim 5, characterized in that: A coil spring (11) is sleeved on the second guide shaft (12).

7. The vibration reduction mechanism of an eddy current flaw detector according to claim 2, characterized in that: A screw seat (23) is fixedly connected to the front fixing plate (14), a ball bearing (24) is connected to the screw seat (23), a second screw (22) is rotatably connected to the front fixing plate (14), the second screw (22) matches the screw seat (23), a nut (21) is connected to the second screw (22), and a hand wheel (20) is connected to the nut (21).

8. The vibration reduction mechanism of an eddy current flaw detector according to claim 7, characterized in that: The first screw rod (3) and the second screw rod (22) are both trapezoidal screw rods.

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