Abrasion degree detector for steel wire rope of crane

Abstract

The utility model discloses a crane steel wire rope wear degree detector, which is characterized in that the steel wire rope stably moves in a horizontal detection channel through the cooperative operation of a rope releasing roller and a winding roller, and the pressure can be flexibly adjusted according to the diameter of the steel wire rope and the detection requirement by matching with a liftable pressing roller; and the steel wire rope is kept stable and uniformly stressed in the detection process. The laser testing assembly adopts a plurality of laser diameter measuring arrays which are axially distributed along the detection channel, so that the steel wire rope can be accurately measured in an omnibearing and multi-point manner, tiny abrasion and deformation on the surface of the steel wire rope can be effectively captured, and high-precision abrasion data can be provided. The automatic and continuous detection process is realized, the detection efficiency is greatly improved, the manual intervention is reduced, and the personal error is reduced. And meanwhile, the structural design is compact and reasonable, the adaptability is high, and the device can stably work in a complex industrial field environment.

Description

TECHNICAL FIELD

[0001] The utility model relates to steel wire rope detection instrument technical field, especially in crane steel wire rope wear degree detector. BACKGROUND

[0002] Crane steel wire rope as the key force component, long-term withstands the alternating load, friction and environmental corrosion, and its wear degree directly influences equipment safety performance. The traditional detection method mainly relies on artificial visual inspection or caliper measurement, and there are problems such as low efficiency, strong subjectivity, and unable to detect internal damage. In recent years, although the automatic detection equipment based on single-point laser diameter measurement or contact sensor appears, but there are generally the following defects: (1) single detection dimension: the existing technology adopts single-point static measurement, and it is difficult to capture the uneven wear and local wire breakage of the steel wire rope in the circumferential direction; (2) insufficient tension control: the steel wire rope is prone to measurement error due to tension fluctuation during the detection process, and the existing compression mechanism lacks dynamic pressure feedback adjustment function; (3) lack of data integration: most devices only collect diameter data, and do not synchronously analyze multi-dimensional parameters such as surface topography and temperature change; (4) weak online capability: it cannot realize integrated operation of cleaning, detection and marking, and needs to frequently stop for processing surface contaminants.

[0003] Although the existing part of the roller type detection device can realize continuous detection, the compression roller adopts fixed pressure mode, which causes overpressure or underpressure phenomenon of different diameter steel wire ropes, and seriously affects the detection precision of the steel wire rope. In addition, the single laser probe layout cannot cover the whole circumference of the steel wire rope, and spiral wear is prone to be missed. It can be seen that the existing technology needs to be improved and improved. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies of the prior art, the utility model aims at providing a crane steel wire rope wear degree detector to solve the problem of low detection precision of the steel wire rope detection instrument in the prior art.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: a crane steel wire rope wear degree detector, comprising a base, comprising a rope unwinding roller, a winding roller, a compression roller and a laser test assembly: the base is rotatably provided with the rope unwinding roller and the winding roller, a horizontal detection channel of the steel wire rope is formed between the rope unwinding roller and the winding roller, the compression roller is installed between the rope unwinding roller and the winding roller, the compression roller is vertically downwardly applied with pressure above the horizontal detection channel, and the laser test assembly comprises a plurality of laser diameter arrays distributed along the axis of the detection channel, and the detection end of the laser diameter array is arranged opposite to the surface of the steel wire rope.

[0006] In an embodiment of the utility model, still include guide rod and vertical guide rail, vertical guide rail is fixed on the inner wall board of base, the guide rod can be lifted and be arranged in vertical guide rail, the end of guide rod can rotate and be provided with the compression roller.

[0007] The beneficial effects of the above embodiment are that the cooperation of the vertical guide rail and the guide rod enables the compression roller to be self-adaptively lifted and lowered, flexibly adapts to the detection requirements of steel wire ropes of different diameters, and enhances the vertical motion stability of the compression roller through the rigid guide structure to avoid uneven pressure distribution caused by deflection.

[0008] In an embodiment of the utility model, a pressure sensor is further included, which is embedded in the interior of the guide rod and can monitor the pressure value applied to the steel wire rope in real time.

[0009] The beneficial effects of the above embodiment are that the built-in pressure sensor monitors the compression force in real time, ensures that the applied pressure is always within the preset threshold, avoids overpressure damage to the steel wire rope or underpressure leading to relaxation of the detection section, and improves the dynamic response accuracy of tension adjustment in combination with closed-loop control.

[0010] In an embodiment of the utility model, the number of laser diameter measuring arrays is two groups, and the two groups of laser diameter measuring arrays are symmetrically arranged on the left and right sides of the compression roller.

[0011] The beneficial effects of the above embodiment are that the two groups of symmetrically distributed laser diameter measuring arrays cover the areas on both sides of the compression roller, eliminate the unilateral detection blind area, and enhance the accuracy of surface profile reconstruction through double-view data fusion, which is particularly suitable for detecting local deformation of the compressed area of the steel wire rope.

[0012] In an embodiment of the utility model, a support seat and a roller shaft fixedly installed on the support seat are further included, the support seat is fixed to the front side of the base, and the roller shaft is rotatably provided with the unwinding roller.

[0013] The beneficial effects of the above embodiment are that the combination of the support seat and the roller shaft provides stable rotating support for the unwinding roller, reduces the radial swing of the steel wire rope when it is released, ensures uniform and stable movement of the detection section, and simplifies the disassembly and maintenance process of the roller.

[0014] In an embodiment of the utility model, a detection channel entrance and a detection channel exit are formed in the bottom plate of the base, the steel wire rope to be detected passes through the detection channel entrance, sequentially winds around the unwinding roller, the compression roller, and the winding roller, and then passes out of the detection channel exit.

[0015] The beneficial effects of the above-mentioned embodiments are that the directional guiding design of the entrance and exit of the detection channel cooperates with the wire rope winding path to ensure that the to-be-detected section always travels along the preset horizontal detection channel, avoids the misalignment of the laser beam measurement reference caused by path deviation, and improves data consistency.

[0016] In an embodiment of the utility model, still include rotating brush and bearing, the coaxial movable setting of detection channel entrance with bearing, the inner side wall of bearing is equipped with rotating brush, rotating brush directly with the surface contact of wire rope.

[0017] The beneficial effects of the above-mentioned embodiments are that the rotating brush rotates with the movement of the wire rope surface when contacting the surface, removes the oil stains or rust attached to the surface, and reduces the interference of impurities on the laser reflection signal; the bearing supports the brush shaft to realize low-resistance rotation, avoiding additional friction damage to the wire rope.

[0018] In an embodiment of the utility model, the base bottom is provided with a plurality of anti-skid feet made of rubber material.

[0019] The beneficial effects of the above-mentioned embodiments are that the rubber anti-skid feet fix the position of the equipment through high friction, suppress the overall displacement caused by the rotation of the roller or the traction of the wire rope during the detection process, buffer the influence of vibration on the laser measurement assembly, and ensure the long-term stable operation of the equipment.

[0020] As described above, the crane wire rope wear degree detector has the following beneficial effects: by integrating mechanical transmission and optical detection technology, dynamic and full-dimension monitoring of the wear state of the wire rope is realized. In the working process, the unwinding roller and the winding roller pull the wire rope through the horizontal detection channel with constant tension, the compression roller applies standardized contact load to the wire rope through a vertical adjustable pressure system, effectively simulating the stress state under actual working conditions. The multiple groups of diameter arrays of the laser test assembly arranged along the axial direction of the detection channel can capture the diameter change and microscopic morphology features of the wire rope surface in real time by synchronously emitting high-precision laser beams and receiving reflection signals. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0022] Figure 1 The structure diagram of the crane wire rope wear degree detector provided by the utility model is shown in the figure.

[0023] Figure 2 Another structural schematic view of the crane steel wire rope wear degree detector is provided.

[0024] Element number explanation

[0025] 1, base; 2, rope unwinding roller; 3, winding roller; 4, pressing roller; 5, laser testing assembly; 6, vertical guide rail; 7, support seat; 8, detection channel entrance; 9, detection channel exit. Specific implementation

[0026] The utility model provides a crane steel wire rope wear degree detector, in order to make the purpose, technical scheme and effect of the utility model more clear, explicit, the following refers to the drawing and raises example to this utility model to make further detailed explanation.

[0027] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms such as '' up and down '' and '' left and right '' is based on the orientation or positional relationship shown in the drawing, and is only for the convenience of describing the utility model and simplifying the description, and cannot be understood as the limitation of the utility model; in addition, the terms '' installation '', '' connection '' and the like should be understood in a broad sense, and for ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0028] Please refer to Figure 1 And Figure 2 The utility model provides a crane steel wire rope wear degree detector, mainly by base 1, rope unwinding roller 2, winding roller 3, pressing roller 4 and laser testing assembly 5 are constituted. On base 1, rope unwinding roller 2 and winding roller 3 are rotatably arranged, and a channel for horizontal detection of steel wire rope is formed between the two. The pressing roller 4 is installed between the rope unwinding roller 2 and the winding roller 3, located above the horizontal detection channel and has a lifting function, which can vertically downwardly apply pressure to the steel wire rope. The laser testing assembly 5 includes a plurality of laser diameter measuring arrays distributed along the axial direction of the detection channel, and the detection end thereof is arranged opposite to the surface of the steel wire rope.

[0029] In a specific embodiment, the detector is also equipped with a guide rod and a vertical guide rail 6. The vertical guide rail 6 is fixed in a vertical state on the inner wall plate of the base 1, the guide rod can realize lifting action in the vertical guide rail 6, and the compression roller 4 is rotatably arranged at the end of the guide rod. This design enables the compression roller 4 to adaptively adjust the lifting according to the actual situation, and flexibly adapt to the detection needs of steel wire ropes of different diameters. At the same time, the rigid guide structure effectively enhances the stability of the vertical movement of the compression roller 4, avoiding the uneven pressure distribution caused by deflection. More specifically, a pressure sensor is embedded in the detector, which is arranged inside the guide rod and can monitor and feedback the pressure value applied to the steel wire rope in real time. With this design, the pressure applied to the steel wire rope can always be within the pre-set threshold range, avoiding damage to the steel wire rope due to overpressure, and preventing the detection section from loosening due to underpressure. Moreover, combined with closed-loop control technology, the dynamic response accuracy of tension adjustment is further improved.

[0030] In another embodiment, the number of laser diameter measurement arrays is set to two groups, which are symmetrically distributed on the left and right sides of the compression roller 4. Such a layout can fully cover the area on both sides of the compression roller 4, thereby eliminating the blind area that may exist when detecting on one side. Through the fusion processing of double-view data, the accuracy of steel wire rope surface profile reconstruction is significantly enhanced, especially suitable for precise detection of local deformation of the compressed area of the steel wire rope.

[0031] The crane steel wire rope wear degree detector also includes a support seat 7 and a roller shaft. The support seat 7 is fixedly installed on the front side of the base 1, and the roller shaft is installed on the support seat 7. The rope releasing roller 2 is rotatably arranged on the roller shaft. This structure provides stable and reliable rotary support for the rope releasing roller 2, effectively reduces the radial swing of the steel wire rope during release, ensures that the detection section moves at a uniform speed and smoothly, and also greatly simplifies the disassembly and maintenance process of the roller.

[0032] In specific embodiments, the base 1 bottom plate is provided with a detection channel entrance 8 and a detection channel exit 9. The steel wire to be detected enters from the detection channel entrance 8, passes through the unwinding roller 2, the pressing roller 4 and the winding roller 3 in turn, and finally exits from the detection channel exit 9. The directional guiding design cooperates with the winding path of the steel wire to ensure that the measured section always travels along the preset horizontal detection channel, avoiding the deviation of the laser beam measurement reference due to path deviation, thereby improving the consistency of the detection data. Preferably, the crane steel wire wear degree detector is further provided with a rotating brush and a bearing. At the detection channel entrance 8, a bearing is coaxially movably arranged, and a rotating brush is mounted on the inner side wall of the bearing. The brush directly contacts the surface of the steel wire. When the steel wire moves, the rotating brush will rotate with it, effectively removing oil stains or rust on the surface of the steel wire, reducing the interference of impurities on the laser reflection signal. At the same time, the bearing supports the brush shaft, realizes low-resistance rotation, and avoids causing additional friction damage to the steel wire.

[0033] Optionally, a plurality of anti-skid feet are arranged at the bottom of the base 1, and the anti-skid feet are made of rubber material. The rubber anti-skid feet can firmly fix the position of the equipment due to the high friction, effectively inhibiting the overall displacement phenomenon caused by the rotation of the roller or the traction of the steel wire during the detection process. In addition, the anti-skid feet can also buffer the influence of vibration on the laser measurement assembly, ensuring that the equipment maintains a stable and reliable working state during long-term operation.

[0034] In summary, the crane steel wire wear degree detector of the utility model, the steel wire is released at a constant speed by the unwinding roller 2, moves to the winding roller 3 through the horizontal detection channel, and the pressing roller 4 adjusts the pressing force through the lifting mechanism, so that the steel wire forms a stable straight line motion track in the detection section, effectively inhibiting the vibration deviation caused by the weight or traction. The laser diameter array is arranged equidistantly along the axis of the detection channel, each array unit synchronously emits a high-density laser beam, forming a detection grid covering the whole circumference of the steel wire, and the diameter change data and surface profile characteristics at different positions in the axial direction are obtained in real time by receiving the reflected light signal. During the detection process, the vertical pressure applied by the pressing roller 4 and the coordinated traction of the unwinding / winding roller 3 form a closed-loop tension control, ensuring that the surface of the steel wire maintains a constant relative distance with the laser beam. After the multi-dimensional laser data is fused by the algorithm, the three-dimensional wear pattern of the steel wire can be accurately reconstructed, the local wire breakage, indentation and uniform wear amount can be simultaneously identified, and the millimeter-level precision full-surface continuous scanning under dynamic detection conditions can be realized. The design realizes the depth coupling of mechanical amplitude stabilization and optical detection, breaks through the spatial limitation of traditional single-point measurement, eliminates the interference of steel wire swing on non-contact detection, and significantly improves the data reliability and detection efficiency under complex working conditions. Therefore, the utility model effectively overcomes the shortcomings of the prior art and has high industrial utilization value.

[0035] It can be understood that, for those skilled in the art, equivalent replacements or changes can be made according to the technical solutions and the inventive concept of the utility model, and all these changes or replacements shall belong to the protection scope of the utility model.

Claims

1. A crane wire rope wear degree detector comprising a base, characterized in that, The device also comprises a rope releasing roller, a winding roller, a pressing roller and a laser testing assembly; the base is provided with the rope releasing roller and the winding roller which are rotatable, and a horizontal detection channel of the steel wire rope is formed between the rope releasing roller and the winding roller; the pressing roller is installed between the rope releasing roller and the winding roller, and the pressing roller is provided above the horizontal detection channel in a lifting manner and vertically downwardly applies pressure on the steel wire rope to be detected; the laser testing assembly comprises a plurality of laser diameter measuring arrays which are distributed along the axis of the detection channel and have detection ends arranged opposite to the surface of the steel wire rope.

2. The crane wire rope wear extent detector according to claim 1, characterized in that, The device also comprises a guide rod and a vertical guide rail; the vertical guide rail is vertically fixed to the inner wall plate of the base; the guide rod is provided in the vertical guide rail in a lifting manner; and the pressing roller is rotatably arranged at the end of the guide rod.

3. The crane wire rope wear extent detector according to claim 2, characterized in that, The device also comprises a pressure sensor; the pressure sensor is embedded in the guide rod and can monitor the pressure value applied on the steel wire rope in real time.

4. The crane wire rope wear extent detector according to claim 1, characterized in that, The number of the laser diameter measuring arrays is two groups; the two groups of the laser diameter measuring arrays are symmetrically arranged on the left and right sides of the pressing roller with respect to the pressing roller.

5. The crane wire rope wear extent detector according to claim 1, characterized in that, The device also comprises a support seat and a roller shaft fixedly installed on the support seat; the support seat is fixed to the front side of the base; and the roller shaft is rotatably provided with the rope releasing roller.

6. The crane wire rope wear extent detector according to claim 1, characterized in that, The bottom plate of the base is provided with a detection channel inlet and a detection channel outlet; the steel wire rope to be detected passes through the detection channel inlet, sequentially winds around the rope releasing roller, the pressing roller and the winding roller, and then passes out of the detection channel outlet.

7. The crane wire rope wear extent detector according to claim 6, characterized in that, The device also comprises a rotating brush and a bearing; the bearing is movably arranged in the detection channel inlet in a coaxial manner; the inner side wall of the bearing is provided with the rotating brush; and the rotating brush directly contacts the surface of the steel wire rope.

8. The crane wire rope wear extent detector according to claim 1, characterized in that, The bottom of the base is provided with a plurality of anti-skid feet made of rubber.

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