CN211179643U - A cylinder liner product failure detection device - Google Patents

Abstract

The utility model relates to a failure detection device for a cylinder liner product, which comprises a worktable, a horizontally arranged rotating shaft is arranged on the worktable, a centering clamp is arranged at the end of the rotating shaft, and a side opposite to the rotating shaft is provided on the worktable. A lateral slide rail, a probe base is slidably arranged on the lateral slide rail, and an eddy current flaw detection probe is fixed on the probe base; a supporting wheel is arranged between the rotating shaft and the lateral slide rail, and the supporting wheel is located vertically below the centering fixture; The wheel seat of the supporting wheel is provided with a transverse guide hole, the probe base is provided with a transverse guide rod, and the guide rod is slidably matched with the guide hole. The cylinder liner product failure detection device of the scheme is improved on the basis of the existing technology, which can ensure that the gap between the probe and the surface of the cylinder liner is fixed, and improve the detection accuracy.

Description

A cylinder liner product failure detection device

technical field

The utility model relates to a cylinder liner product failure detection device, which belongs to the technical field of cylinder liner detection equipment.

Background technique

If the cylinder liner product has inherent defects such as microscopic cracks and blisters, it is easy to cause failure due to high temperature and high pressure during use. Therefore, it is very important to detect the inherent defects of cylinder liner products. Patent CN200910065555.3 discloses a special eddy current flaw detector for cylinder liner, which can effectively detect the inherent defects of cylinder liner by using the principle of electromagnetic induction. The size of the gap between the probe of the flaw detector and the surface of the cylinder liner has a great influence on the detection results. The eddy current flaw detector in this patent uses a fixture to fix the cylinder liner. When the clamping height of the fixture on the bottom of the cylinder liner is large, the impact The penetration depth of the probe during detection cannot fully detect the cylinder liner; and when the clamping height of the fixture to the bottom of the cylinder liner is small, the clamping firmness is low, and the eccentricity problem may occur due to the centrifugal force when the cylinder liner rotates. Cause the gap between the probe and the surface of the cylinder liner to fluctuate, affecting the accuracy of the detection.

SUMMARY OF THE INVENTION

In view of the above problems, the utility model provides a cylinder liner product failure detection device, and the specific scheme is:

A cylinder liner product failure detection device, comprising a worktable, a horizontally arranged rotating shaft is arranged on the worktable, a centering clamp is arranged at the end of the rotating shaft, and a transverse slide rail is arranged on the worktable along the side opposite to the rotating shaft, A probe base is slidably arranged on the lateral slide rail, and an eddy current flaw detection probe is fixed on the probe base; a supporting wheel is arranged between the rotating shaft and the lateral slide rail, and the supporting wheel is located below the centering fixture along the vertical direction; the supporting wheel The wheel base of the probe is provided with a transverse guide hole, the probe base is provided with a transverse guide rod, and the guide rod is slidably matched with the guide hole.

Further, the workbench is provided with two opposite vertical seats, and the rotating shaft and the transverse slide rail are respectively fixed on the two vertical seats.

Further, the supporting roller includes two wheel bodies, a space is left between the two wheel bodies, and the eddy current flaw detection probe is located in the space between the two wheel bodies.

The beneficial point of the utility model is that the failure detection device of the cylinder liner product of this scheme is improved on the basis of the existing technology, and the horizontally arranged clamp is combined with the supporting roller to ensure the stable rotation of the cylinder liner. In addition, the eddy current flaw detection probe adopts a guide The rod and the supporting roller are slidably matched to ensure that the gap between the probe and the surface of the cylinder liner is fixed, and the detection accuracy is improved.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Figure 2 is a schematic structural diagram of a supporting wheel in the utility model.

Detailed ways

As shown in Fig. 1-2, the structure of the cylinder liner product failure detection device of this embodiment includes a workbench 1, and a horizontally arranged rotating shaft 2 is arranged on the workbench 1. The rotating shaft is driven by a motor, and the end of the rotating shaft is provided with The centering fixture 3, the worktable 1 is provided with a lateral slide rail 4 along the side opposite to the rotating shaft 2, the sliding direction of the lateral slide rail 4 is parallel to the axis of the rotating shaft, and a probe base 5 is slid on the lateral slide rail 4, and the probe The base 5 can be driven by a servo motor to move along the lateral slide rail 4, and an eddy current flaw detection probe 6 is fixed on the probe base 5. The eddy current flaw detection probe 6 is consistent with the patent CN200910065555.3, including two inner and outer probes, which are used to detect the leakage of the cylinder liner 7. inner and outer surfaces. Among them, the eddy current flaw detection probe belongs to the conventional technical means in the field of metal component defect detection, and this application will not describe its specific structure and principle in detail; The axial direction of the wheel 8 is also parallel to the axial direction of the rotating shaft 2, and the supporting wheel 8 is located below the centering fixture 3 in the vertical direction. Specifically, the upper wheel of the supporting wheel is along the outer circumference of the cylinder liner clamped by the centering fixture 3 The purpose is to support the rotating cylinder liner and prevent the eccentric swing due to centrifugal force when the cylinder liner rotates. Specifically, it should be set on the side away from the rotating shaft, which can play a better righting effect; The wheel base 11 of 8 is provided with a transverse guide hole 9, and the probe base is provided with a transverse guide rod 10, and the guide rod is slidably matched with the guide hole.

When detecting the internal defects of the cylinder liner, first fix the end of the cylinder liner with a centering fixture, and at the same time the other end of the cylinder liner is in contact with the supporting roller, start the rotating shaft, the cylinder liner rotates at a constant speed, and simultaneously start the servo motor to drive the eddy current flaw detection probe at a constant speed Move to perform spiral flaw detection on the inner and outer surfaces of the cylinder liner. Since the distance between the guide rod and the probe is fixed, and the distance between the guide rod and the surface of the cylinder liner is fixed, it can be determined that the size of the surface gap between the probe and the cylinder liner is fixed.

In this solution, the worktable is provided with two opposite vertical seats 12, and the rotating shaft and the transverse slide rail are respectively fixed on the two vertical seats. In addition, the supporting roller 8 includes two wheel bodies, and a space is left between the two wheel bodies, and the eddy current flaw detection probe 6 is located in the space between the two wheel bodies; similarly, the guide rod 10 and the guide hole 9 are also located in the two wheel bodies. between the bodies.

Claims (3)

1. A cylinder liner product failure detection device is characterized in that: the eddy current flaw detection device comprises a workbench, wherein a rotating shaft arranged transversely is arranged on the workbench, a centering clamp is arranged at the end part of the rotating shaft, a transverse sliding rail is arranged on one side of the workbench opposite to the rotating shaft, a probe base is arranged on the transverse sliding rail in a sliding manner, and an eddy current flaw detection probe is fixed on the probe base; a riding wheel is arranged between the rotating shaft and the transverse sliding rail, and the riding wheel is positioned below the centering clamp along the vertical direction; the probe base is provided with a transverse guide rod, and the guide rod is in sliding fit with the guide hole.

2. The cylinder liner product failure detection apparatus of claim 1, wherein: the workbench is provided with two opposite vertical seats, and the rotating shaft and the transverse sliding rail are respectively fixed on the two vertical seats.

3. The cylinder liner product failure detection apparatus of claim 1, wherein: the riding wheel comprises two wheel bodies, a space is reserved between the two wheel bodies, and the eddy current flaw detection probe is positioned in the space between the two wheel bodies.

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