阅读说明：本技术 基于x光数据的钢丝绳芯输送带剩余厚度计算矫正方法 (Method for calculating and correcting residual thickness of steel wire rope core conveying belt based on X-ray data ) 是由 赵维国 袁景 于 2019-10-10 设计创作，主要内容包括：本发明公开了一种基于X光数据的钢丝绳芯输送带剩余厚度计算矫正方法,能够实时计算X光穿透钢丝绳芯输送带衰减的灰度值z,保证钢丝绳芯输送带剩余厚度计算的准确性,检测时无需破坏盖胶层,不会给钢丝绳芯输送带留下隐患,结构简约、操作便捷、准确有效等诸多优势特征,使设备管理人员,能更好的把控在线钢丝绳芯输送带的劣化发展趋势,避免事态扩大,从而减少相应的经济损失,其最终目的是也是为了降低企业设备综合检修费用,确保生产现场安全顺畅,无需更改传统的基于X光数据的钢丝绳芯输送带在线厚度监测设备,方法简单可靠,实用性强,具备良好的应用前景。(The invention discloses a method for calculating and correcting the residual thickness of a steel wire rope core conveying belt based on X-ray data, which can calculate the attenuation gray value z of X-ray penetrating through the steel wire rope core conveying belt in real time, ensure the accuracy of calculating the residual thickness of the steel wire rope core conveying belt, does not need to destroy a cover glue layer during detection, does not leave hidden danger for the steel wire rope core conveying belt, has various advantages of simple structure, convenient operation, accuracy, effectiveness and the like, enables equipment managers to better control the deterioration development trend of the steel wire rope core conveying belt on line, avoids situation expansion, and further reduces corresponding economic loss, the final purpose is to reduce the comprehensive maintenance cost of enterprise equipment, ensure the safety and smoothness of a production field, avoid the need of changing the traditional X-ray data-based on-line thickness monitoring equipment of the steel wire rope core conveying belt, and have the advantages of simple and reliable method, strong practicability and good application prospect.)

1. The method for calculating and correcting the residual thickness of the steel wire rope core conveying belt based on X-ray data is characterized in that: comprises the following steps of (a) carrying out,

fixing X-ray on-line detection equipment on a conveyor frame, and detecting line scanning data of a steel wire rope core conveying belt on line; an X-ray emitting unit and an X-ray receiving unit in the X-ray online detection device are respectively arranged on two sides of a return working surface and a non-working surface of the steel wire rope core conveying belt and are used for online detection of the absolute thickness of the steel wire rope core conveying belt;

step (B), bonding the pre-embedded identification chip unit inside the belt body of the steel wire rope core conveying belt, identifying the position of the section of the steel wire rope core conveying belt, and sending the position information of the section of the steel wire rope core conveying belt to X-ray online detection equipment;

step (C), line scanning data of the steel wire rope core conveying belt, which is received by the X-ray online detection device, comprises the absolute position X of a pixel point, the step length y of the steel wire rope core conveying belt in the moving direction and the gray value z of the attenuation of the X-ray penetrating through the steel wire rope core conveying belt, and is stored in a first database;

step (D), an online thickness detection device is arranged on the steel wire rope core conveyor belt, and three-dimensional coordinates (x1, y1 and z1) of the thickness of the steel wire rope core conveyor belt, which are acquired by the online thickness detection device, are stored in a second database;

step (E), according to three-dimensional coordinates (X1, y1, z1) of the thickness of the steel wire rope core conveying belt, enabling X = X1 and y = y1, according to a gray level attenuation value z of the steel wire rope core conveying belt penetrated by X light, enabling z1= z K0.02 mm, and accordingly calculating a gray level value adjusting coefficient K1 at the position, and so on, recording a gray level value adjusting coefficient sequence K, K = [ K1, K2., kn ] of the whole steel wire rope core conveying belt, wherein kn is a gray level value adjusting coefficient kn at the nth point;

detaching the online thickness detection device from the steel wire rope core conveying belt, reconstructing a residual thickness value T of the steel wire rope core conveying belt by using the corrected gray value adjustment coefficient sequence K of the whole steel wire rope core conveying belt and the line scanning data (x, y, z) of the steel wire rope core conveying belt, and setting a thickness alarm threshold T0;

step (G), comparing the residual thickness value T of the reconstructed steel wire rope core conveying belt with a thickness alarm threshold value, and if the T is more than or equal to 75 percent of T0, determining that the deformation of the section of the steel wire rope core conveying belt is qualified and the section of the steel wire rope core conveying belt can be continuously used; and if T is less than 75 percent, T0, triggering an alarm signal, uploading alarm information, and reporting the position information and the thickness information of the worn section of the steel wire rope core conveying belt.

2. The method for correcting residual thickness calculation of a steel wire rope core conveying belt based on X-ray data according to claim 1, wherein: and (A) respectively installing an X-ray emission unit and an X-ray receiving unit on two sides of a return working surface and a non-working surface of the steel wire rope core conveying belt, wherein the X-ray emission unit and the X-ray receiving unit are mutually vertical to the surface of the steel wire rope core conveying belt and are fixed on a conveyor frame.

3. The method for correcting residual thickness calculation of a steel wire rope core conveying belt based on X-ray data according to claim 1, wherein: and (B) the embedded identification chip unit is a passive radio frequency sensor, a passive coil or a strip-shaped metal sheet.

4. The method for correcting residual thickness calculation of a steel wire rope core conveying belt based on X-ray data according to claim 1, wherein: step (F), the online thickness detection device is detached from the steel wire rope core conveying belt, the corrected gray value adjustment coefficient sequence K of the whole steel wire rope core conveying belt and the line scanning data (x, y, z) of the steel wire rope core conveying belt are utilized to reconstruct the residual thickness value T of the steel wire rope core conveying belt,

T=z* K*0.02mm。

5. the method for correcting residual thickness calculation of a steel wire rope core conveying belt based on X-ray data according to claim 1, wherein: and (F) the range of the thickness alarm threshold T0 is 19-22 mm.

Technical Field

The invention relates to the technical field of detection of a steel wire rope core conveying belt, in particular to a method for calculating and correcting the residual thickness of the steel wire rope core conveying belt based on X-ray data.

Background

The steel wire rope core conveying belt conveying system plays a leading role in material conveying in various fields (such as harbors, electric power, coal, metallurgy and other systems). At present, the on-line detection of faults of a steel wire rope core and a joint of a conveying belt is realized by adopting a line scanning X-ray detection device, and the application is common.

At present, the remaining thickness of wire rope core conveyer belt detects and adopts manual single-point measurement or adopt online thickness detection device to go on more, but the online thickness that X light detection device was swept to the line detects often with higher costs, and the function singleness (only the remaining thickness of pure detects), how to utilize X light received's data to accomplish the wire rope core to wire rope core conveyer belt effectively, connect to detect simultaneously, and calculate the remaining thickness and the wearing and tearing state of wire rope core conveyer belt (the X light detection device is swept to current line does not realize this function), and guarantee the quality of detection data, to coal enterprise saved manufacturing cost greatly, the maintenance cost of equipment has been reduced effectively.

At present, the patent with application number 201811371015.3, named as the device and method for detecting thickness of steel wire rope core conveyer belt on line based on X-ray reconstruction, has the following problem that the measurement is not accurate due to the uneven rubber density of the steel wire rope core conveyer belt, thereby affecting the accuracy of the calculation of the measured residual thickness, therefore, the device for detecting thickness of steel wire rope core conveyer belt on line based on X-ray reconstruction disclosed in the patent document is used for calculating the residual thickness and the wear state (performing correction processing) of the steel wire rope core conveyer belt, which is a problem to be solved at present.

Disclosure of Invention

The invention aims to overcome the defect that the measurement is inaccurate due to the uneven rubber density of the existing steel wire rope core conveying belt, so that the accuracy of the calculation of the measured residual thickness is influenced. The method for calculating and correcting the residual thickness of the steel wire rope core conveying belt based on the X-ray data can calculate the gray value z of attenuation of the X-ray penetrating through the steel wire rope core conveying belt in real time, ensures the accuracy of calculation of the residual thickness of the steel wire rope core conveying belt, does not need to change the traditional steel wire rope core conveying belt on-line thickness monitoring equipment based on the X-ray data, is simple and reliable, has strong practicability, and has good application prospect.

In order to achieve the purpose, the invention adopts the technical scheme that:

a method for calculating and correcting the residual thickness of a steel wire rope core conveying belt based on X-ray data comprises the following steps,

fixing X-ray on-line detection equipment on a conveyor frame, and detecting line scanning data of a steel wire rope core conveying belt on line; an X-ray emitting unit and an X-ray receiving unit in the X-ray online detection device are respectively arranged on two sides of a return working surface and a non-working surface of the steel wire rope core conveying belt and are used for online detection of the absolute thickness of the steel wire rope core conveying belt;

step (B), bonding the pre-embedded identification chip unit inside the belt body of the steel wire rope core conveying belt, identifying the position of the section of the steel wire rope core conveying belt, and sending the position information of the section of the steel wire rope core conveying belt to X-ray online detection equipment;

step (C), line scanning data of the steel wire rope core conveying belt, which is received by the X-ray online detection device, comprises the absolute position X of a pixel point, the step length y of the steel wire rope core conveying belt in the moving direction and the gray value z of the attenuation of the X-ray penetrating through the steel wire rope core conveying belt, and is stored in a first database;

step (D), an online thickness detection device is arranged on the steel wire rope core conveyor belt, and three-dimensional coordinates (x1, y1 and z1) of the thickness of the steel wire rope core conveyor belt, which are acquired by the online thickness detection device, are stored in a second database;

step (E), according to the three-dimensional coordinates (X1, y1, z1) of the thickness of the steel wire rope core conveying belt, enabling X to be X1 and y to be y1, according to the gray attenuation value z of the steel wire rope core conveying belt penetrated by X light, enabling z1 to be z K0.02 mm, and calculating to obtain a gray value adjusting coefficient K1 at the position, and so on, recording the gray value adjusting coefficient sequence K of the whole steel wire rope core conveying belt, wherein K is [ K1, K2 ]. K, kn ], and kn is the gray value adjusting coefficient kn at the nth point;

detaching the online thickness detection device from the steel wire rope core conveying belt, reconstructing a residual thickness value T of the steel wire rope core conveying belt by using the corrected gray value adjustment coefficient sequence K of the whole steel wire rope core conveying belt and the line scanning data (x, y, z) of the steel wire rope core conveying belt, and setting a thickness alarm threshold T0;

step (G), comparing the residual thickness value T of the reconstructed steel wire rope core conveying belt with a thickness alarm threshold value, and if the T is more than or equal to 75 percent of T0, determining that the deformation of the section of the steel wire rope core conveying belt is qualified and the section of the steel wire rope core conveying belt can be continuously used; and if T is less than 75 percent, T0, triggering an alarm signal, uploading alarm information, and reporting the position information and the thickness information of the worn section of the steel wire rope core conveying belt.

In the method for calculating and correcting the residual thickness of the steel wire rope core conveying belt based on the X-ray data, step (a) is performed, and the X-ray emitting unit and the X-ray receiving unit are respectively installed on two sides of the return working surface and the non-working surface of the steel wire rope core conveying belt, and the X-ray emitting unit and the X-ray receiving unit are mutually perpendicular to the surface of the steel wire rope core conveying belt and are both fixed on the conveyor frame.

The method for calculating and correcting the residual thickness of the steel wire rope core conveying belt based on the X-ray data comprises a step (B), wherein the embedded identification chip unit is a passive radio frequency sensor, a passive coil or a strip-shaped metal sheet.

The method for calculating and correcting the residual thickness of the steel wire rope core conveying belt based on the X-ray data comprises the step (F) of detaching the online thickness detection device from the steel wire rope core conveying belt, reconstructing the residual thickness value T of the steel wire rope core conveying belt by using the corrected gray value adjustment coefficient sequence K of the whole steel wire rope core conveying belt and the line scanning data (X, y, z) of the steel wire rope core conveying belt,

T＝z*K*0.02mm。

in the method for calculating and correcting the residual thickness of the steel wire rope core conveying belt based on the X-ray data, in the step (F), the range of the thickness alarm threshold T0 is 19-22 mm.

The invention has the beneficial effects that: the invention relates to a method for calculating and correcting the residual thickness of a steel wire rope core conveying belt based on X-ray data, which corrects the problem of inaccurate measurement caused by uneven rubber density of the conveying belt in the original patent on the basis of the patent with the application number of 201811371015.3, utilizes the original X-ray connector on-line detection equipment or newly-installed X-ray connector on-line detection equipment, can be repeatedly used on a plurality of steel wire rope core conveying belts by sequentially calibrating an on-line thickness detection device, realizes the effect of completing two kinds of detection by one equipment, obtains the thickness of the steel wire rope core conveying belt in the running process in real time, does not need to damage a cover glue layer during detection, does not leave hidden danger for the steel wire rope core conveying belt, ensures to overcome the precision caused by uneven rubber density of the conveying belt, has the advantages of convenient operation, accuracy, effectiveness and the like, enables equipment managers to better control the deterioration development trend of the steel wire rope core conveying belt, the situation expansion is avoided, the corresponding economic loss is reduced, the final purpose is to reduce the comprehensive maintenance cost of enterprise equipment, the safety and smoothness of a production field are ensured, the universal and promotional effects are better, the irregular maintenance and shutdown maintenance time of a steel wire rope core conveyer belt transmission system is reduced, the potential safety hazard of the steel wire rope core conveyer belt transmission system is avoided, the service life of the steel wire rope core conveyer belt conveyor is prolonged, the driving and navigation protecting effect is achieved for safety production, the practical significance is important for promoting economic development, and the application prospect is wide.

Drawings

Fig. 1 is a flowchart of a method for calculating and correcting the residual thickness of a wire rope core conveyor belt based on X-ray data according to the present invention.

Detailed Description

The invention will be further described with reference to the accompanying drawings.

The method for calculating and correcting the residual thickness of the steel wire rope core conveying belt based on the X-ray data can calculate the gray value z of the attenuation of the X-ray penetrating through the steel wire rope core conveying belt in real time, ensures the accuracy of calculating the residual thickness of the steel wire rope core conveying belt, does not need to change the traditional steel wire rope core conveying belt on-line thickness monitoring equipment based on the X-ray data, has simple and reliable method and strong practicability, and comprises the following steps as shown in figure 1,

the method for calculating and correcting the residual thickness of the steel wire rope core conveying belt based on X-ray data comprises the following steps,

fixing X-ray on-line detection equipment on a conveyor frame, and detecting line scanning data of a steel wire rope core conveying belt on line; an X-ray emitting unit and an X-ray receiving unit in the X-ray online detection device are respectively arranged on two sides of a return working surface and a non-working surface of the steel wire rope core conveying belt and are used for online detection of the absolute thickness of the steel wire rope core conveying belt;

step (B), bonding the pre-embedded identification chip unit inside the belt body of the steel wire rope core conveying belt, identifying the position of the section of the steel wire rope core conveying belt, and sending the position information of the section of the steel wire rope core conveying belt to X-ray online detection equipment;

step (C), line scanning data of the steel wire rope core conveying belt, which is received by the X-ray online detection device, comprises the absolute position X of a pixel point, the step length y of the steel wire rope core conveying belt in the moving direction and the gray value z of the attenuation of the X-ray penetrating through the steel wire rope core conveying belt, and is stored in a first database;

step (D), an online thickness detection device is arranged on the steel wire rope core conveyor belt, and three-dimensional coordinates (x1, y1 and z1) of the thickness of the steel wire rope core conveyor belt, which are acquired by the online thickness detection device, are stored in a second database;

step (E), according to the three-dimensional coordinates (X1, y1, z1) of the thickness of the steel wire rope core conveying belt, enabling X to be X1 and y to be y1, according to the gray attenuation value z of the steel wire rope core conveying belt penetrated by X light, enabling z1 to be z K0.02 mm, and calculating to obtain a gray value adjusting coefficient K1 at the position, and so on, recording the gray value adjusting coefficient sequence K of the whole steel wire rope core conveying belt, wherein K is [ K1, K2 ]. K, kn ], and kn is the gray value adjusting coefficient kn at the nth point;

step (F), detaching the online thickness detection device from the steel wire rope core conveying belt, reconstructing the residual thickness value T of the steel wire rope core conveying belt by using the corrected gray value adjustment coefficient sequence K of the whole steel wire rope core conveying belt and the line scanning data (x, y, z) of the steel wire rope core conveying belt, and setting a thickness alarm threshold T0, wherein,

T＝z*K*0.02mm；

the residual thickness value T is a sequence and can represent the residual thickness value of each point of the steel wire rope core conveying belt, an online thickness detection device is wirelessly reused in the normal steel wire rope core conveying belt process, the online thickness detection device plays a role in calibration and can be repeatedly used on a plurality of steel wire rope core conveying belts, the range of a thickness alarm threshold value T0 is 19-22mm, and the 19-22mm is the limit thickness of the steel wire rope core conveying belt for safe transmission;

step (G), comparing the residual thickness value T of the reconstructed steel wire rope core conveying belt with a thickness alarm threshold value, and if the T is more than or equal to 75 percent of T0, determining that the deformation of the section of the steel wire rope core conveying belt is qualified and the section of the steel wire rope core conveying belt can be continuously used; and if T is less than 75 percent, T0, triggering an alarm signal, uploading alarm information, and reporting the position information and the thickness information of the worn section of the steel wire rope core conveying belt.

In the method for calculating and correcting the residual thickness of the steel wire rope core conveying belt based on the X-ray data, step (a) is performed, and the X-ray emitting unit and the X-ray receiving unit are respectively installed on two sides of the return working surface and the non-working surface of the steel wire rope core conveying belt, and the X-ray emitting unit and the X-ray receiving unit are mutually perpendicular to the surface of the steel wire rope core conveying belt and are both fixed on the conveyor frame.

The method for calculating and correcting the residual thickness of the steel wire rope core conveying belt based on the X-ray data comprises a step (B), wherein the embedded identification chip unit is a passive radio frequency sensor, a passive coil or a strip-shaped metal sheet.

The method for calculating and correcting the residual thickness of the steel wire rope core conveying belt based on the X-ray data comprises the step (F) of detaching the online thickness detection device from the steel wire rope core conveying belt, reconstructing the residual thickness value T of the steel wire rope core conveying belt by using the corrected gray value adjustment coefficient sequence K of the whole steel wire rope core conveying belt and the line scanning data (X, y, z) of the steel wire rope core conveying belt,

the invention relates to a method for calculating and correcting the residual thickness of a steel wire rope core conveyor belt based on X-ray data, which is a conveyor belt thickness table calculated by utilizing X-ray gray scale data, wherein the rubber density is high when the joint position or the later repair is carried out, and the table is as follows:

according to the method for calculating and correcting the residual thickness of the steel wire rope core conveying belt based on the X-ray data, a data table of the residual thickness of the steel wire rope core conveying belt measured at the same position is monitored, and the data table comprises the following tables:

in summary, the method for calculating and correcting the residual thickness of the steel wire rope core conveying belt based on the X-ray data corrects the problem of inaccurate measurement caused by uneven rubber density of the conveying belt in the original patent on the basis of the patent with the application number of 201811371015.3, utilizes the original X-ray connector on-line detection equipment or newly-installed X-ray connector on-line detection equipment, and can be repeatedly used on a plurality of steel wire rope core conveying belts by sequentially calibrating an on-line thickness detection device, thereby realizing the effect of completing two kinds of detection by one equipment, obtaining the thickness of the steel wire rope core conveying belt in real time during the operation process, avoiding damaging a cover rubber layer during the detection, leaving no hidden danger to the steel wire rope core conveying belt, ensuring to overcome the precision caused by uneven rubber density of the conveying belt, having the advantages of convenient operation, accuracy, effectiveness and the like, and enabling an equipment manager to better control the deterioration development trend of the steel wire rope core conveying belt, the situation expansion is avoided, the corresponding economic loss is reduced, the final purpose is to reduce the comprehensive maintenance cost of enterprise equipment, the safety and smoothness of a production field are ensured, the universal and promotional effects are better, the irregular maintenance and shutdown maintenance time of a steel wire rope core conveyer belt transmission system is reduced, the potential safety hazard of the steel wire rope core conveyer belt transmission system is avoided, the service life of the steel wire rope core conveyer belt conveyor is prolonged, the driving and navigation protecting effect is achieved for safety production, the practical significance is important for promoting economic development, and the application prospect is wide.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.