CN110924203A - Method for controlling oil content of steel wire rope - Google Patents
Method for controlling oil content of steel wire rope Download PDFInfo
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- CN110924203A CN110924203A CN201911170266.XA CN201911170266A CN110924203A CN 110924203 A CN110924203 A CN 110924203A CN 201911170266 A CN201911170266 A CN 201911170266A CN 110924203 A CN110924203 A CN 110924203A
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- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B7/00—Details of, or auxiliary devices incorporated in, rope- or cable-making machines; Auxiliary apparatus associated with such machines
- D07B7/02—Machine details; Auxiliary devices
- D07B7/14—Machine details; Auxiliary devices for coating or wrapping ropes, cables, or component strands thereof
- D07B7/145—Coating or filling-up interstices
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- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B7/00—Details of, or auxiliary devices incorporated in, rope- or cable-making machines; Auxiliary apparatus associated with such machines
- D07B7/02—Machine details; Auxiliary devices
- D07B7/12—Machine details; Auxiliary devices for softening, lubricating or impregnating ropes, cables, or component strands thereof
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
- G01N27/82—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
- G01N27/83—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws by investigating stray magnetic fields
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
- G01N5/02—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by absorbing or adsorbing components of a material and determining change of weight of the adsorbent, e.g. determining moisture content
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- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2301/00—Controls
- D07B2301/55—Sensors
- D07B2301/5531—Sensors using electric means or elements
- D07B2301/555—Sensors using electric means or elements for measuring magnetic properties
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- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2401/00—Aspects related to the problem to be solved or advantage
- D07B2401/20—Aspects related to the problem to be solved or advantage related to ropes or cables
- D07B2401/202—Environmental resistance
- D07B2401/2025—Environmental resistance avoiding corrosion
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Ropes Or Cables (AREA)
Abstract
The invention discloses a method for controlling the oil content of a steel wire rope, which belongs to the technical field of steel wire rope processing and comprises the following steps: s1, preprocessing each strand of steel wire rope before oil injection; s2, weighing each steel wire rope needing oil injection; s3, atomizing and uniformly coating the steel wire rope on the whole surface by using a steel wire rope coating sprayer; s4, after oil spraying is finished on the steel wire ropes, weighing each strand of steel wire rope; s5, immersing each strand of oil-sprayed steel wire rope into water respectively, confirming that no bubbles are attached to the surface of the steel wire rope, and then continuously weighing; s6, calculating the oil content of each steel wire rope by using a formula; and S7, carrying out subsequent detection and oil control on the steel wire rope with the oil content rate having deviation. The method provided by the invention can visually acquire the oil content information of the steel wire rope, and performs subsequent detection work through the steel wire rope detector so as to complete further oil control work.
Description
Technical Field
The invention belongs to the technical field of steel wire rope processing, and particularly relates to a method for controlling the oil content of a steel wire rope.
Background
The steel wire rope is a spiral steel wire bundle formed by twisting steel wires with mechanical property and geometric dimension meeting requirements together according to a certain rule, and consists of the steel wires, a rope core and lubricating grease. The steel wire rope is a spiral rope which is formed by twisting a plurality of layers of steel wires into strands, and then twisting a certain number of strands by taking a rope core as a center. In a material handling machine for lifting, pulling, tensioning and carrying. The steel wire rope has high strength, light dead weight, stable work, difficult sudden whole breakage and reliable work. In the process of processing and producing the steel wire rope, the surface of the steel wire rope needs to be oiled, so that the external steel wire rope is protected from being corroded, meanwhile, the lubricating effect is achieved, moisture and water can be prevented from entering the steel wire rope, and the overall quality of the steel wire rope is obviously improved.
The common oil coating method in the prior art is an atomization spraying method, common spraying equipment is matched with continuous motion of the steel wire rope through selected spraying flow to continuously and uniformly spray the surface of the steel wire rope, but the surface regularity of a certain part of the steel wire rope is deviated in the spraying process due to position relation or self matrix quality problems of the steel wire rope surface in the process, so that the oil content of the whole steel wire rope is deviated from the normal oil content after the whole steel wire rope is processed, and the normal service life of the steel wire rope is influenced.
Disclosure of Invention
The method provided by the invention can visually acquire the oil content information of the steel wire rope and perform subsequent detection work through a steel wire rope detector so as to complete further oil control work.
In order to achieve the purpose, the invention provides the following technical scheme:
a method for controlling the oil content of a steel wire rope is characterized by comprising the following steps:
s1, sequentially preprocessing each strand of steel wire rope, cleaning the steel wire rope to prevent the surface of the steel wire rope from being stained with dust, and obtaining a steel wire rope strand to be sprayed with oil;
s2, starting detection work, weighing each steel wire rope needing oil injection, and marking the weight of each steel wire rope as W1, wherein W1 is a plurality of numerical values and corresponds to each steel wire rope;
s3, mixing compressed air of 0.2-0.3 MPa and spraying grease in an oil storage cylinder, atomizing the mixture by using a steel wire rope sprayer, uniformly spraying the mixture to the whole surface of a steel wire rope, adjusting the moving speed of the steel wire rope according to specific conditions, and ensuring that the oil consumption of N113FS is 70-100 g/m2 under the condition that the rope walking speed is 2-4 m so as to ensure the basic spraying effect;
s4, after oil spraying is finished on the steel wire ropes, weighing each strand of steel wire rope respectively to obtain the weight of each strand of steel wire rope after oil is contained, and recording the weight as W2, wherein W2 is a plurality of numerical values and corresponds to each strand of steel wire rope respectively;
s5, immersing each strand of oil-sprayed steel wire rope into water respectively, confirming that no bubbles are attached to the surface of the steel wire rope, weighing continuously, and recording the weight of the steel wire rope as W3, wherein W3 is a plurality of numerical values and corresponds to each strand of steel wire rope respectively;
s6, substituting W1, W2 and W3 into the following formula to respectively calculate the dry density rho and the oil content P of each steel wire rope,
dry density ρ ═ W1/(W2-W3)
Oil content P { (W2-W1)/[ ρ oil (W2-W3) ];
s7, detecting and ensuring the oil injection effect of each strand of steel wire rope by comparing the oil content P of each strand of steel wire rope, directly finishing processing as a finished product if the oil content reaches the oil content standard, and otherwise, continuing to perform subsequent detection work;
s8, detecting the steel wire rope strands with nonstandard oil content by using a steel wire rope detector, wherein a permanent magnet and magnetic flux leakage principle is adopted, when in detection, a group of permanent magnets are used for magnetically saturating the steel wire rope, then a magnetic head wraps the steel wire rope to run at a relatively constant speed, and the part of the steel wire rope surface which is not regular enough can cause the change of magnetic flux, so that the magnetic flux is captured by a Hall sensor and converted into an electric signal, and an intuitive analog signal is output, so that the quality condition of each part of a steel wire rope base body is obtained;
s9, because the surface of the steel wire rope is subjected to uniform spraying and oiling work, when the oil content of the steel wire rope deviates, a certain deviation also occurs on the base body part of the steel wire rope, the part which possibly has problems is detected by the method on the surface of the steel wire rope, and then the oil content of the part is detected;
s10, coating the part with deviation of the oil content on the steel wire rope substrate to increase the oil content or wiping the part to reduce the oil content to finish further oil control work according to specific conditions, and then detecting the dry density rho and the oil content P in S4-S6 again to finish oil control after reaching the standard.
Preferably, the calculation step in S6 needs to use a computer to perform accurate calculation, so as to avoid errors and deviations to the maximum extent.
Preferably, the steel wire rope sprayer in the S3 comprises a pressurizing air pump, a seal box connected with the pressurizing air pump through an air inlet pipe, an electric heater and a temperature control device are arranged in the seal box, an oil outlet of the seal box is connected with an oil injection device through an oil conveying pipe, the oil injection device is an encircling barrel, a plurality of oil injection nozzles are arranged on the inner wall of the encircling barrel, the surface part of the steel wire rope is sprayed at an even speed at the same time by using the structure, and the purpose of guaranteeing the even oil injection effect is achieved.
The invention has the technical effects and advantages that:
1. the method provided by the invention can be used for independently calculating and detecting each steel wire rope to be oiled and processed, checking the oil content of the steel wire rope through specific numerical values, referring to the standard oil content, playing the effect of visually acquiring the oil content information, and facilitating the subsequent oil control work by taking the oil content as the reference, thereby ensuring the quality effect of the steel wire rope in the processing and production process.
2. The steel wire rope strand with the nonstandard oil content is detected by using the steel wire rope detector, the detection is provided by adopting the permanent magnet and magnetic flux leakage principle, the steel wire rope after being oiled can be efficiently and quickly detected, and an objective and visual basis is provided. The method can accurately measure the wear condition of the metal cross section of the steel wire rope, and because the surface of the steel wire rope is completely subjected to spraying and oiling work, the oil content deviation also occurs at the part of the steel wire rope with the deviation in the matrix quality.
Drawings
Fig. 1 is a schematic flow chart of a method for controlling the oil content of a steel wire rope according to the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the present invention provides a method for controlling oil content of a steel wire rope, including the following steps:
s1, sequentially preprocessing each strand of steel wire rope, cleaning the steel wire rope to prevent the surface of the steel wire rope from being stained with dust, and obtaining a steel wire rope strand to be sprayed with oil;
s2, starting detection work, weighing each steel wire rope needing oil injection, and marking the weight of each steel wire rope as W1, wherein W1 is a plurality of numerical values and corresponds to each steel wire rope;
s3, mixing compressed air of 0.2-0.3 MPa and spraying grease in an oil storage cylinder, atomizing the mixture by using a steel wire rope sprayer, uniformly spraying the mixture to the whole surface of a steel wire rope, adjusting the moving speed of the steel wire rope according to specific conditions, and ensuring that the oil consumption of N113FS is 70-100 g/m2 under the condition that the rope walking speed is 2-4 m so as to ensure the basic spraying effect; the steel wire rope sprayer comprises a pressurizing air pump, a seal box connected with the pressurizing air pump through an air inlet pipe, an electric heater and a temperature control device are arranged in the seal box, an oil outlet of the seal box is connected with an oil spraying device through an oil conveying pipe, the oil spraying device is a cylinder, and a plurality of oil spraying nozzles are arranged on the inner wall of a cylinder surrounding ring;
s4, after oil spraying is finished on the steel wire ropes, weighing each strand of steel wire rope respectively to obtain the weight of each strand of steel wire rope after oil is contained, and recording the weight as W2, wherein W2 is a plurality of numerical values and corresponds to each strand of steel wire rope respectively;
s5, immersing each strand of oil-sprayed steel wire rope into water respectively, confirming that no bubbles are attached to the surface of the steel wire rope, weighing continuously, and recording the weight of the steel wire rope as W3, wherein W3 is a plurality of numerical values and corresponds to each strand of steel wire rope respectively;
s6, substituting W1, W2 and W3 into the following formula to respectively calculate the dry density rho and the oil content P of each steel wire rope,
dry density ρ ═ W1/(W2-W3)
Oil content P { (W2-W1)/[ ρ oil (W2-W3) ] }
In the calculating step, a computer is required to be used for carrying out accurate calculation, so that errors and deviations are avoided to the greatest extent;
s7, detecting and ensuring the oil injection effect of each strand of steel wire rope by comparing the oil content P of each strand of steel wire rope, directly finishing processing as a finished product if the oil content reaches the oil content standard, and otherwise, continuing to perform subsequent detection work;
s8, detecting the steel wire rope strands with nonstandard oil content by using a steel wire rope detector, wherein a permanent magnet and magnetic flux leakage principle is adopted, when in detection, a group of permanent magnets are used for magnetically saturating the steel wire rope, then a magnetic head wraps the steel wire rope to run at a relatively constant speed, and the part of the steel wire rope surface which is not regular enough can cause the change of magnetic flux, so that the magnetic flux is captured by a Hall sensor and converted into an electric signal, and an intuitive analog signal is output, so that the quality condition of each part of a steel wire rope base body is obtained; the instrument strictly executes the standards of GB/T21837-2008 ferromagnetic steel wire rope electromagnetic detection method and MT/T970-2005 steel wire rope (cable) online nondestructive quantitative detection method and judgment rule, quantitatively detects and judges hidden dangers and damage levels which endanger use safety such as internal and external wire breakage, local fatigue, abrasion corrosion, structural deformation and the like of the steel wire rope, realizes non-contact wide-distance detection on the steel wire rope, is not influenced by oil dirt of the steel wire rope, general wire warping and operation speed, and has extremely strong detection passing capacity; the humanized interface design makes the operation very convenient. After the TST steel wire rope detector finishes detection, detection data, a waveform chart, an analysis report and a digital detection result can be immediately and randomly consulted, a printer is connected, the detection report with a standard format can be timely printed, and the quality of the steel wire rope can be effectively detected;
s9, because the surface of the steel wire rope is subjected to uniform spraying and oiling work, when the oil content of the steel wire rope deviates, a certain deviation also occurs on the base body part of the steel wire rope, the part which possibly has problems is detected by the method on the surface of the steel wire rope, and then the oil content of the part is detected;
s10, coating the part with deviation of the oil content on the steel wire rope substrate to increase the oil content or wiping the part to reduce the oil content to finish further oil control work according to specific conditions, and then detecting the dry density rho and the oil content P in S4-S6 again to finish oil control after reaching the standard.
In summary, the following steps: according to the method for controlling the oil content of the steel wire rope, provided by the invention, the effect of intuitively obtaining the oil content information of the steel wire rope can be obtained, and the subsequent detection work is carried out through the steel wire rope detector, so that the further oil control work can be conveniently completed.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (3)
1. A method for controlling the oil content of a steel wire rope is characterized by comprising the following steps:
s1, sequentially preprocessing each strand of steel wire rope, cleaning the steel wire rope to prevent the surface of the steel wire rope from being stained with dust, and obtaining a steel wire rope strand to be sprayed with oil;
s2, starting detection work, weighing each steel wire rope needing oil injection, and marking the weight of each steel wire rope as W1, wherein W1 is a plurality of numerical values and corresponds to each steel wire rope;
s3, mixing compressed air of 0.2-0.3 MPa and spraying grease in an oil storage cylinder, atomizing the mixture by using a steel wire rope sprayer, uniformly spraying the mixture to the whole surface of a steel wire rope, adjusting the moving speed of the steel wire rope according to specific conditions, and under the condition that the rope moving speed is regulated to be 2-4 m, using 70-100 g/m of oil for N113FS2To ensure basic spraying effect;
s4, after oil spraying is finished on the steel wire ropes, weighing each strand of steel wire rope respectively to obtain the weight of each strand of steel wire rope after oil is contained, and recording the weight as W2, wherein W2 is a plurality of numerical values and corresponds to each strand of steel wire rope respectively;
s5, immersing each strand of oil-sprayed steel wire rope into water respectively, confirming that no bubbles are attached to the surface of the steel wire rope, weighing continuously, and recording the weight of the steel wire rope as W3, wherein W3 is a plurality of numerical values and corresponds to each strand of steel wire rope respectively;
s6, substituting W1, W2 and W3 into the following formula, and calculating the dry density rho and the oil content P of each steel wire rope respectively, wherein the dry density rho is W1/(W2-W3)
Oil content P { (W2-W1)/[ ρ oil (W2-W3) ];
s7, detecting and ensuring the oil injection effect of each strand of steel wire rope by comparing the oil content P of each strand of steel wire rope, directly finishing processing as a finished product if the oil content reaches the oil content standard, and otherwise, continuing to perform subsequent detection work;
s8, detecting the steel wire rope strands with nonstandard oil content by using a steel wire rope detector, wherein a permanent magnet and magnetic flux leakage principle is adopted, when in detection, a group of permanent magnets are used for magnetically saturating the steel wire rope, then a magnetic head wraps the steel wire rope to run at a relatively constant speed, and the part of the steel wire rope surface which is not regular enough can cause the change of magnetic flux, so that the magnetic flux is captured by a Hall sensor and converted into an electric signal, and an intuitive analog signal is output, so that the quality condition of each part of a steel wire rope base body is obtained;
s9, because the surface of the steel wire rope is subjected to uniform spraying and oiling work, when the oil content of the steel wire rope deviates, a certain deviation also occurs on the base body part of the steel wire rope, the part which possibly has problems is detected by the method on the surface of the steel wire rope, and then the oil content of the part is detected;
s10, coating the part with deviation of the oil content on the steel wire rope substrate to increase the oil content or wiping the part to reduce the oil content to finish further oil control work according to specific conditions, and then detecting the dry density rho and the oil content P in S4-S6 again to finish oil control after reaching the standard.
2. The method for controlling the oil content of the steel wire rope according to claim 1, wherein the method comprises the following steps: the calculation step in S6 requires a computer to perform accurate calculation, so as to avoid errors and deviations to the maximum extent.
3. The method for controlling the oil content of the steel wire rope according to claim 1, wherein the method comprises the following steps: the steel wire rope sprayer in the S3 comprises a pressurizing air pump, a seal box connected with the pressurizing air pump through an air inlet pipe, an electric heater and a temperature control device are arranged in the seal box, an oil outlet of the seal box is connected with an oil spraying device through an oil conveying pipe, the oil spraying device is an encircling cylinder, a plurality of oil spraying nozzles are arranged on the inner wall of the encircling cylinder ring, the surface part of the steel wire rope is sprayed at an even speed rate at the same time by using the structure, and the purpose of guaranteeing the even oil spraying effect is achieved.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911170266.XA CN110924203A (en) | 2019-11-26 | 2019-11-26 | Method for controlling oil content of steel wire rope |
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| CN201911170266.XA CN110924203A (en) | 2019-11-26 | 2019-11-26 | Method for controlling oil content of steel wire rope |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2070911U (en) * | 1990-07-28 | 1991-02-06 | 王耀聪 | Permanent-magnetic nondestructive flaw detection apparatus |
| US6446756B1 (en) * | 2000-04-25 | 2002-09-10 | J. Ray Mcdermott, S.A. | Wire rope lubrication device for a crane |
| CN201404874Y (en) * | 2009-05-27 | 2010-02-17 | 山西晋城无烟煤矿业集团有限责任公司 | Air-compressed spray type steel wire rope oil filling device |
| CN103205907A (en) * | 2013-05-10 | 2013-07-17 | 贵州钢绳股份有限公司 | Oil spraying method and oil spraying device of elevator steel wire rope strand |
| DE202013104504U1 (en) * | 2013-10-04 | 2013-10-21 | Pfeifer Drako Drahtseilwerk Gmbh & Co. Kg | Device for non-destructive testing of steel wire ropes |
| CN105436021A (en) * | 2015-12-22 | 2016-03-30 | 国家电网公司 | Steel wire rope cleaning/detection/maintenance apparatus |
| CN106498789A (en) * | 2017-01-19 | 2017-03-15 | 江阴凯博钢绳制品有限公司 | Novel fatigue resistance Wire Rope Production line and its production technology |
-
2019
- 2019-11-26 CN CN201911170266.XA patent/CN110924203A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2070911U (en) * | 1990-07-28 | 1991-02-06 | 王耀聪 | Permanent-magnetic nondestructive flaw detection apparatus |
| US6446756B1 (en) * | 2000-04-25 | 2002-09-10 | J. Ray Mcdermott, S.A. | Wire rope lubrication device for a crane |
| CN201404874Y (en) * | 2009-05-27 | 2010-02-17 | 山西晋城无烟煤矿业集团有限责任公司 | Air-compressed spray type steel wire rope oil filling device |
| CN103205907A (en) * | 2013-05-10 | 2013-07-17 | 贵州钢绳股份有限公司 | Oil spraying method and oil spraying device of elevator steel wire rope strand |
| DE202013104504U1 (en) * | 2013-10-04 | 2013-10-21 | Pfeifer Drako Drahtseilwerk Gmbh & Co. Kg | Device for non-destructive testing of steel wire ropes |
| CN105436021A (en) * | 2015-12-22 | 2016-03-30 | 国家电网公司 | Steel wire rope cleaning/detection/maintenance apparatus |
| CN106498789A (en) * | 2017-01-19 | 2017-03-15 | 江阴凯博钢绳制品有限公司 | Novel fatigue resistance Wire Rope Production line and its production technology |
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Application publication date: 20200327 |