CN110988123A - Fault maintenance method of screw conveyor - Google Patents
Fault maintenance method of screw conveyor Download PDFInfo
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- CN110988123A CN110988123A CN201911261861.4A CN201911261861A CN110988123A CN 110988123 A CN110988123 A CN 110988123A CN 201911261861 A CN201911261861 A CN 201911261861A CN 110988123 A CN110988123 A CN 110988123A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/04—Analysing solids
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/44—Processing the detected response signal, e.g. electronic circuits specially adapted therefor
- G01N29/4409—Processing the detected response signal, e.g. electronic circuits specially adapted therefor by comparison
- G01N29/4427—Processing the detected response signal, e.g. electronic circuits specially adapted therefor by comparison with stored values, e.g. threshold values
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/26—Scanned objects
- G01N2291/263—Surfaces
- G01N2291/2634—Surfaces cylindrical from outside
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/26—Scanned objects
- G01N2291/263—Surfaces
- G01N2291/2636—Surfaces cylindrical from inside
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Abstract
The invention provides a fault maintenance method of a spiral conveyor. The fault maintenance method of the screw conveyor comprises the following steps: step S1: detecting the thickness of the cylinder wall of the spiral conveyor by using a thickness gauge, transmitting a thickness detection value to a control system by using the thickness gauge, and analyzing and processing the thickness detection value by using the control system to obtain an actual thickness value d of the cylinder wall; step S2: and when the thickness gauge detects that the actual thickness value D of a part of the cylinder wall is smaller than the standard thickness value D, the part of the cylinder wall is abraded, and the part of the cylinder wall is repaired. The invention effectively solves the problems that the thickness of the cylinder wall of the screw conveyor cannot be obtained and the cylinder wall abrasion prevention cannot be carried out in the prior art.
Description
Technical Field
The invention relates to the technical field of shield machinery, in particular to a fault maintenance method of a screw conveyor.
Background
At present, shield construction technology is basically adopted when large-scale underground tunnel engineering of underground railway tunnel construction is carried out. The spiral conveyer is used for conveying the muck cut by the shield machine in the shield construction process. However, in the shield construction maintenance process, the worker cannot obtain the thickness of the cylinder wall of the screw conveyor, and the repair of the cylinder wall is not performed until the cylinder wall is worn, so that the normal use and the service life of the screw conveyor are affected, and the cylinder wall cannot be prevented from being worn.
Disclosure of Invention
The invention mainly aims to provide a fault maintenance method of a spiral conveyor, which aims to solve the problems that the thickness of the cylinder wall of the spiral conveyor cannot be obtained and the cylinder wall can not be prevented from being worn in the prior art.
In order to achieve the above object, the present invention provides a method for troubleshooting a screw conveyor, comprising: step S1: detecting the thickness of the cylinder wall of the spiral conveyor by using a thickness gauge, transmitting a thickness detection value to a control system by using the thickness gauge, and analyzing and processing the thickness detection value by using the control system to obtain an actual thickness value d of the cylinder wall; step S2: and when the thickness gauge detects that the actual thickness value D of a part of the cylinder wall is smaller than the standard thickness value D, the part of the cylinder wall is abraded, and the part of the cylinder wall is repaired.
Further, in step S2, when the actual thickness D of the cylindrical wall of the portion meets the standard thickness D: when D is less than or equal to 0.8D, the cylinder wall of the part needs to be repaired.
Further, the thickness gauge is an ultrasonic thickness gauge.
Further, when a part of the cylinder wall is worn, the inner side and/or the outer side of the part of the cylinder wall are/is repaired by welding wear-resistant steel plates.
Further, the wear-resistant steel plate is an arc-shaped plate or a plane plate.
And further, making a difference between the standard thickness value D and an actual thickness value D of a part of the cylinder wall detected by the thickness gauge to obtain the thickness t of the wear-resistant steel plate to be welded, wherein the thickness t is equal to the difference between the standard thickness value D and the actual thickness value D.
Further, after the worn cylinder wall is repaired, the thickness gauge is used for detecting the thickness of the partial cylinder wall again, and when the thickness gauge detects that the actual thickness value D of the partial cylinder wall is larger than or equal to the standard thickness value D, secondary repairing is not needed to be carried out on the partial cylinder wall.
Further, after the cylinder wall which is worn is repaired, the thickness gauge is used for detecting the thickness of the part of the cylinder wall again, when the thickness gauge detects that the actual thickness value D of the part of the cylinder wall is smaller than the standard thickness value D, and the actual thickness value D of the part of the cylinder wall and the standard thickness value D meet the following requirements: when D is more than 0.8D, the secondary repair of the cylinder wall is not needed.
Further, the troubleshooting method of the screw conveyor further comprises the following steps: when the spiral conveyor cannot be unearthed, detecting whether a rotating shaft of the spiral conveyor is broken or not, and if the rotating shaft is broken, replacing the rotating shaft; or welding the broken rotating shaft.
Further, before detecting whether the rotating shaft of the screw conveyer is broken, a front gate of the screw conveyer is closed, and a hydraulic valve observation port of the screw conveyer is detached.
By applying the technical scheme of the invention, in the shield construction maintenance process, a worker uses the thickness gauge to detect the thickness of the cylinder wall of the spiral conveyor, the thickness gauge transmits the thickness detection value to the control system, and the control system analyzes and processes the thickness detection value to obtain the actual thickness value d of the cylinder wall. And when the thickness gauge detects that the actual thickness value D of a part of the cylinder wall is smaller than the standard thickness value D, the part of the cylinder wall is abraded, and the part of the cylinder wall is repaired. Like this, screw conveyer's troubleshooting method in this application makes the staff can acquire the thickness of section of thick bamboo wall to judge whether need repair this part section of thick bamboo wall through the actual thickness value d of section of thick bamboo wall, and then avoid the section of thick bamboo wall to wear through, solved among the prior art can't acquire screw conveyer's section of thick bamboo wall's thickness, can't carry out the problem of section of thick bamboo wall wearing prevention, prolonged screw conveyer's life, guarantee that screw conveyer can normal operating.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 shows a flow chart of an embodiment of a method of troubleshooting a screw conveyor according to the present invention.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
It is noted that, unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
In the present invention, unless stated to the contrary, use of the directional terms "upper and lower" are generally directed to the orientation shown in the drawings, or to the vertical, or gravitational direction; likewise, for ease of understanding and description, "left and right" are generally to the left and right as shown in the drawings; "inner and outer" refer to the inner and outer relative to the profile of the respective member itself, but the above directional terms are not intended to limit the present invention.
In order to solve the problem that the thickness of the cylinder wall of the screw conveyor cannot be obtained in the prior art and the cylinder wall cannot be worn for prevention, the application provides a fault maintenance method of the screw conveyor.
As shown in fig. 1, the troubleshooting method of the screw conveyor includes:
step S1: detecting the thickness of the cylinder wall of the spiral conveyor by using a thickness gauge, transmitting a thickness detection value to a control system by using the thickness gauge, and analyzing and processing the thickness detection value by using the control system to obtain an actual thickness value d of the cylinder wall;
step S2: when the thickness gauge detects that the actual thickness value D of a part of the cylinder wall is smaller than the standard thickness value D, the part of the cylinder wall is abraded, and the part of the cylinder wall needs to be repaired.
By applying the technical scheme of the embodiment, in the shield construction maintenance process, a worker uses the thickness gauge to detect the thickness of the cylinder wall of the spiral conveyor, the thickness gauge transmits the thickness detection value to the control system, and the control system analyzes and processes the thickness detection value to obtain the actual thickness value d of the cylinder wall. And when the thickness gauge detects that the actual thickness value D of a part of the cylinder wall is smaller than the standard thickness value D, the part of the cylinder wall is abraded, and the part of the cylinder wall is repaired. Like this, the troubleshooting method of screw conveyer in this embodiment makes the staff can acquire the thickness of section of thick bamboo wall to judge whether need repair this part section of thick bamboo wall through the actual thickness value d of section of thick bamboo wall, and then avoid section of thick bamboo wall to wear through, solved prior art and can't acquire the thickness of the section of thick bamboo wall of screw conveyer, can't carry out the problem of section of thick bamboo wall wearing prevention, prolonged screw conveyer's life, guaranteed that screw conveyer can normal operating.
In this embodiment, in step S2, when the actual thickness D of the cylindrical wall of the portion and the standard thickness D satisfy: and D is less than or equal to 0.8D, repairing the cylinder wall of the part. Specifically, when the cylinder wall is worn to the extent that the actual thickness value D and the standard thickness value D satisfy the following conditions: when D is less than or equal to 0.8D, the cylinder wall of the part is worn and needs to be repaired.
It should be noted that, the relationship between the actual thickness value D and the standard thickness value D is not limited to this, and may be adjusted according to the actual working condition. Optionally, when the actual thickness D of the section of the cylindrical wall and the standard thickness D satisfy: when D is less than or equal to 0.7D, or D is less than or equal to 0.6D, or D is less than or equal to 0.5D, or D is less than or equal to 0.4D, or D is less than or equal to 0.3D, or D is less than or equal to 0.2D, or D is less than or equal to 0.15D, repairing the part of the cylinder wall.
In the present embodiment, the thickness gauge is an ultrasonic thickness gauge. Specifically, the ultrasonic thickness gauge is suitable for measuring the thickness of metal (such as steel, cast iron, aluminum, copper and the like), plastic, ceramic, glass fiber and any other good ultrasonic conductor, and has wide application range and high detection precision.
It should be noted that the thickness gauge is a laser thickness gauge or an X-ray thickness gauge.
In this embodiment, when a part of the cylinder wall is worn, the inner side of the part of the cylinder wall is repaired by welding a wear-resistant steel plate. Specifically, when the part of the cylinder wall is worn, a wear-resistant steel plate is welded on the inner side of the part of the cylinder wall to increase the thickness of the part of the cylinder wall, so that the repaired part of the cylinder wall meets the use requirement. Meanwhile, the arrangement makes the repair of the screw conveyor easier and simpler for workers, and reduces the labor intensity of the workers.
Note that the welding position of the wear-resistant steel plate is not limited to this. In other embodiments not shown in the drawings, wear-resistant steel plates are welded to the outside of the worn cylinder wall. Specifically, when the partial cylinder wall is worn, a wear-resistant steel plate is welded on the outer side of the partial cylinder wall to increase the thickness of the partial cylinder wall, so that the repaired partial cylinder wall meets the use requirement. Meanwhile, the arrangement makes the repair of the screw conveyor easier and simpler for workers, and reduces the labor intensity of the workers.
In other embodiments not shown in the drawings, wear resistant steel plates are welded on the inside and outside of the worn cylinder wall. Specifically, when the part of the cylinder wall is worn, wear-resistant steel plates are welded on the inner side and the outer side of the part of the cylinder wall to increase the thickness of the part of the cylinder wall, so that the repaired part of the cylinder wall meets the use requirement. Meanwhile, the arrangement makes the repair of the screw conveyor easier and simpler for workers, and reduces the labor intensity of the workers.
Optionally, the wear-resistant steel plate is an arc-shaped plate or a flat plate. Like this, when the staff repaired wearing and tearing section of thick bamboo wall, can select according to wearing and tearing condition and wearing and tearing position the shape of wear-resisting steel sheet, promote the laminating nature of wear-resisting steel sheet and section of thick bamboo wall to the area of contact of increase wear-resisting steel sheet and section of thick bamboo wall promotes the two welding stability, takes place to break away from each other and influence screw conveyer's normal use in order to avoid follow-up the two.
In this embodiment, the standard thickness value D is different from the actual thickness value D of the partial cylinder wall detected by the thickness gauge to obtain the thickness t of the wear-resistant steel plate to be welded, and the thickness t is equal to the difference between the standard thickness value D and the actual thickness value D. Specifically, the thickness t of the wear-resistant steel plate is obtained through the difference value between the standard thickness value D and the actual thickness value D, so that the thickness of the repaired cylinder wall meets the use requirement, and material waste is avoided.
Alternatively, the difference △ D between the plate thickness t and the standard thickness value D and the actual thickness value D satisfies 0.9 △ D ≦ t ≦ 1.1 △ D.
In this embodiment, after the worn cylinder wall is repaired, the thickness gauge is used to perform thickness detection on the part of the cylinder wall again, and when the thickness gauge detects that the actual thickness value D of the part of the cylinder wall is greater than or equal to the standard thickness value D, the part of the cylinder wall does not need to be repaired for the second time. Therefore, after the worn cylinder wall is repaired, the thickness gauge measures the thickness of the repaired cylinder wall, and if the actual thickness value D of the repaired cylinder wall is larger than or equal to the standard thickness value D, secondary repair of the cylinder wall is not needed.
In this embodiment, after the worn cylindrical wall is repaired, the thickness gauge is used to perform thickness detection on the partial cylindrical wall again, and when the thickness gauge detects that the actual thickness value D of the partial cylindrical wall is smaller than the standard thickness value D, the actual thickness value D of the partial cylindrical wall and the standard thickness value D satisfy the following condition: when D is more than 0.8D, the secondary repair of the cylinder wall is not needed. Thus, after the worn cylinder wall is repaired, the thickness measuring instrument measures the thickness of the repaired cylinder wall, and if the actual thickness value D of the cylinder wall meets the standard thickness value D: d is more than 0.8D, the secondary repair of the cylinder wall of the part is not needed. If the actual thickness value D of the cylinder wall of the part meets the standard thickness value D: d is less than or equal to 0.8D, secondary repair is needed to be carried out on the cylinder wall of the part to meet the thickness requirement.
In this embodiment, the method for troubleshooting a screw conveyor further includes:
when the screw conveyer can not be unearthed, whether the rotating shaft of the screw conveyer is broken or not is detected, and if the rotating shaft is broken, the broken rotating shaft is welded. Therefore, the arrangement makes the operation of the rotating shaft easier and simpler for workers, and reduces the labor intensity.
It should be noted that, if the rotating shaft is broken, the operation of the rotating shaft is not limited to this. Optionally, if the rotating shaft is broken, the broken rotating shaft is replaced by the worker.
In this embodiment, before detecting whether the rotating shaft of the screw conveyor is broken, the front gate of the screw conveyor is closed first, and the hydraulic valve observation port of the screw conveyor is detached. Therefore, the arrangement makes the observation and judgment of whether the rotating shaft is broken easier and more convenient for the workers, and reduces the labor intensity of the workers.
From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:
in the shield construction maintenance process, a worker uses a thickness gauge to detect the thickness of the cylinder wall of the spiral conveyor, the thickness gauge transmits a thickness detection value to a control system, and the control system analyzes and processes the thickness detection value to obtain an actual thickness value d of the cylinder wall. And when the thickness gauge detects that the actual thickness value D of a part of the cylinder wall is smaller than the standard thickness value D, the part of the cylinder wall is abraded, and the part of the cylinder wall is repaired. Like this, screw conveyer's troubleshooting method in this application makes the staff can acquire the thickness of section of thick bamboo wall to judge whether need repair this part section of thick bamboo wall through the actual thickness value d of section of thick bamboo wall, and then avoid the section of thick bamboo wall to wear through, solved among the prior art can't acquire screw conveyer's section of thick bamboo wall's thickness, can't carry out the problem of section of thick bamboo wall wearing prevention, prolonged screw conveyer's life, guarantee that screw conveyer can normal operating.
It is to be understood that the above-described embodiments are only a few, but not all, embodiments of the present 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.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise, and it should be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of features, steps, operations, devices, components, and/or combinations thereof.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A method of troubleshooting a screw conveyor, comprising:
step S1: detecting the thickness of the cylinder wall of the spiral conveyor by using a thickness gauge, transmitting a thickness detection value to a control system by using the thickness gauge, and analyzing and processing the thickness detection value by using the control system to obtain an actual thickness value d of the cylinder wall;
step S2: and when the thickness gauge detects that the actual thickness value D of part of the cylinder wall is smaller than the standard thickness value D, the part of the cylinder wall is abraded, and the part of the cylinder wall is repaired.
2. The method for trouble shooting a screw conveyor according to claim 1, wherein in said step S2, when the actual thickness D of the portion of the cylindrical wall and said standard thickness D satisfy: when D is less than or equal to 0.8D, the cylinder wall of the part needs to be repaired.
3. The method of troubleshooting a screw conveyor of claim 1 wherein the thickness gauge is an ultrasonic thickness gauge.
4. The method of claim 1, wherein when a portion of the cylindrical wall is worn, the inner side and/or the outer side of the portion of the cylindrical wall is repaired by welding a wear-resistant steel plate.
5. The method of troubleshooting the spiral conveyor as claimed in claim 4, wherein the abrasion resistant steel plate is an arc-shaped plate or a flat plate.
6. The method for overhauling the spiral conveyor as claimed in claim 4, wherein the standard thickness value D is different from the actual thickness value D of the cylinder wall detected by the thickness gauge to obtain the plate thickness t of the wear-resistant steel plate to be welded, and the plate thickness t is equal to the difference between the standard thickness value D and the actual thickness value D.
7. The method for repairing a screw conveyor according to claim 1, wherein after the repair of the worn cylinder wall is completed, the thickness gauge is used to perform the thickness detection again on the part of the cylinder wall, and when the thickness gauge detects that the actual thickness value D of the part of the cylinder wall is greater than or equal to the standard thickness value D, the secondary repair of the part of the cylinder wall is not required.
8. The method for repairing a spiral conveyor according to claim 1, wherein after the repair of the worn cylindrical wall is completed, the thickness gauge is used to perform the thickness measurement again on the partial cylindrical wall, and when the thickness gauge detects that the actual thickness D of the partial cylindrical wall is smaller than the standard thickness D and the actual thickness D of the partial cylindrical wall and the standard thickness D satisfy the following condition: when D is more than 0.8D, the secondary repair of the cylinder wall is not needed.
9. The method of trouble shooting a screw conveyor according to claim 1, further comprising:
when the spiral conveyor cannot be unearthed, detecting whether a rotating shaft of the spiral conveyor is broken or not, and if the rotating shaft is broken, replacing the rotating shaft; or welding the broken rotating shaft.
10. The method for overhauling the spiral conveyor as claimed in claim 1, wherein before detecting whether the rotating shaft of the spiral conveyor is broken, the front gate of the spiral conveyor is closed, and the hydraulic valve observation port of the spiral conveyor is detached.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911261861.4A CN110988123A (en) | 2019-12-10 | 2019-12-10 | Fault maintenance method of screw conveyor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911261861.4A CN110988123A (en) | 2019-12-10 | 2019-12-10 | Fault maintenance method of screw conveyor |
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| CN110988123A true CN110988123A (en) | 2020-04-10 |
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| CN201911261861.4A Pending CN110988123A (en) | 2019-12-10 | 2019-12-10 | Fault maintenance method of screw conveyor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111846804A (en) * | 2020-08-28 | 2020-10-30 | 枣阳市襄穗粮油机械有限公司 | Intelligent comprehensive management method for spiral grain conveyor |
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| CN102279207A (en) * | 2011-06-23 | 2011-12-14 | 西安石油大学 | Detection method for corrosion of metal pipe barrel |
| CN110006376A (en) * | 2019-02-19 | 2019-07-12 | 广东核电合营有限公司 | Pipeline wall thickness measurement method |
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2019
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|---|---|---|---|---|
| CN102279207A (en) * | 2011-06-23 | 2011-12-14 | 西安石油大学 | Detection method for corrosion of metal pipe barrel |
| CN110006376A (en) * | 2019-02-19 | 2019-07-12 | 广东核电合营有限公司 | Pipeline wall thickness measurement method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111846804A (en) * | 2020-08-28 | 2020-10-30 | 枣阳市襄穗粮油机械有限公司 | Intelligent comprehensive management method for spiral grain conveyor |
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Application publication date: 20200410 |
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