CN114279736A - Simple and rapid testing device for load test of balance beam for ship and using method thereof - Google Patents
Simple and rapid testing device for load test of balance beam for ship and using method thereof Download PDFInfo
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- CN114279736A CN114279736A CN202111635413.3A CN202111635413A CN114279736A CN 114279736 A CN114279736 A CN 114279736A CN 202111635413 A CN202111635413 A CN 202111635413A CN 114279736 A CN114279736 A CN 114279736A
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- 238000012360 testing method Methods 0.000 title claims abstract description 101
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000004637 computerized dynamic posturography Methods 0.000 title description 2
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 8
- 239000010959 steel Substances 0.000 claims abstract description 8
- 238000003466 welding Methods 0.000 claims description 18
- 238000007689 inspection Methods 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 6
- 230000007547 defect Effects 0.000 claims description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 3
- 239000004831 Hot glue Substances 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 230000005489 elastic deformation Effects 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 3
- 239000000565 sealant Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 238000004088 simulation Methods 0.000 abstract 1
- 238000007796 conventional method Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
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- 239000003153 chemical reaction reagent Substances 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The invention discloses a simple and rapid testing device for a load test of a balance beam for a ship and a using method thereof, wherein the testing device comprises a tooling piece, the tooling piece consists of a support frame and a tooling lever, one end of the tooling lever is hinged and fixed with the support frame, a base is arranged below the other end of the tooling lever, a jack is arranged at the top end of the base, a pressure gauge is arranged at the bottom of the jack, the top end of the jack is contacted with the bottom of the tail end of the tooling lever, a shackle is arranged on the tooling lever, and a steel wire rope used for connecting the balance beam is arranged on the shackle; the stress condition and the size of the main hoisting pipe in the hoisting process are simulated through the tool, the stress of the steel wire rope reaches the actual axial tension value through the jacking of the jack, the strain of the main stress member is detected through the simulation stress test, the actual stress of the structure is compared with the allowable stress through conversion, the special requirements of the load test on tools and test sites are effectively avoided, and the test time and the test cost are greatly reduced.
Description
Technical Field
The invention relates to the technical field of balance beam testing, in particular to a simple and rapid testing device for a load test of a balance beam for a ship and a using method thereof.
Background
According to the standard requirements of national standards or various classification society standards, a load test of 1.25 times of design load is carried out on the hoisting balance beam after the hoisting balance beam is manufactured so as to test the reliability and safety of the hoisting balance beam, the domestic conventional method is to simulate real hoisting, 1.25 times of design load balance weight is hoisted under the balance beam, and then the balance beam and the balance weight are hoisted by a large crane or a gantry crane so as to meet the requirements of the load test and test the safety of the balance beam;
the existing inspection method needs a large crane, needs a counterweight, has specific requirements on an inspection site and tools, has large inspection limitation, long time and high cost, and provides a simple and rapid inspection device for a load test of a balance beam for a ship and a using method thereof.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the simple and rapid testing device for the load test of the balance beam for the ship and the using method thereof, so that the special requirements of the load test on tools and test sites are effectively avoided, and the test time and cost are greatly reduced.
In order to solve the technical problems, the invention provides the following technical scheme: the utility model provides a simple and easy quick verifying attachment of compensating beam load test for boats and ships, includes the frock piece, the frock piece comprises support frame and frock lever, it is articulated fixed between the one end of frock lever and the support frame, the other end below of frock lever is provided with the base, the top of base is provided with the jack, the bottom of jack is provided with the pressure gauge, the top of jack and the terminal bottom contact of frock lever, be provided with on the frock lever and break out, be provided with the wire rope that is used for connecting the compensating beam on breaking out.
A use method of a simple and rapid testing device for a load test of a balance beam for a ship comprises the following steps:
s1, checking a welding seam UT inspection report of the balance beam, and determining whether a tension test can be executed;
s2, carrying the balance beam to a designated test site and fixing the balance beam;
s3, checking the tool and the related detecting instrument;
s4, installing a tool according to requirements, and detecting a welding seam between the tool and the balance beam;
s5, arranging a total station and an observation line;
s6, testing the balance beam test node;
s7, testing that the test equipment and the tooling are installed and fixed in place, fastening the steel cable tool in place, fixing the supporting seat and the jack in place, and sticking the strain gauge in place;
s8, starting the lifting range of the jack, and checking the display number of the pressure gauge; according to the use requirement of the hydraulic jack, the test jacking is continuously increased from 0 to the test tonnage, when the test pressure value shows 1/4T-1/2T-3/4T-T of the test tonnage, all data are observed and recorded according to a test record table, and the appearance of a welding line and the appearance of a main hanging pipe are observed until the single-point test is completed;
s9, completing a balance beam single-point test and forming a record;
s10, dismantling test equipment and a tool, and cutting off the connecting part of the test tool and the balance beam body by a distance of 50mm to avoid cutting the balance beam body and complete resetting;
s11, after the test is finished, according to the detection result of the stress strain gauge, determining whether the stress of the related structure is smaller than the allowable stress and whether the deformation is in the elastic deformation; and (3) detecting main welding seams at the nodes after the test, if the structure is not deformed and the welding seams have no defects, considering that the test is successful, and the structure conforms to the theoretical calculation result, thereby meeting the actual hoisting requirement.
Preferably, the sticking of the strain gauge in place is embodied as:
s1, cleaning and flattening the metal surface by using a tool, and removing dirt by using alcohol;
s2, determining the sticking position and direction of the strain gauge and marking correspondingly;
s3, uniformly coating the adhesive on the position to be pasted;
s4, pasting the strain gauge to the good position, placing the strain gauge on the strain gauge by using a polyester sheet, and standing for 5 minutes;
s5, measuring the strain gauge by using a universal meter to ensure that the strain gauge is not damaged and works normally;
s6, sealing the strain gauge by using sealant to prevent the strain gauge from being affected with damp;
s7, welding a cable lead;
s8, detecting the strain gauge by using a universal meter again, and determining the strain gauge to be intact;
s9, fixing the cable lead by using hot melt adhesive;
and S10, connecting a strain gauge for detection.
Compared with the prior art, the invention can achieve the following beneficial effects:
based on the lever principle and the material stress-strain principle, the stress condition and the stress magnitude of the main hoisting pipe in the hoisting process are simulated through the tool, the structural tool is divided into two supporting points, the stress of the steel wire rope reaches the actual axial tension value through the jacking of the jack, the strain of a main stress member is detected through the simulated stress test, the actual stress of the structure is converted and compared with the allowable stress, the special requirements of the load test on tools and test sites are effectively avoided, and the test time and the test cost are greatly reduced.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Wherein: 1. a base; 2. a pressure gauge; 3. a jack; 4. assembling a workpiece; 5. a wire rope; 6. and (6) shackle dismounting.
Detailed Description
The present invention will be further described with reference to specific embodiments for the purpose of facilitating an understanding of technical means, characteristics of creation, objectives and functions realized by the present invention, but the following embodiments are only preferred embodiments of the present invention, and are not intended to be exhaustive. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative efforts belong to the protection scope of the present invention. The experimental methods in the following examples are conventional methods unless otherwise specified, and materials, reagents and the like used in the following examples are commercially available unless otherwise specified.
Examples
Referring to fig. 1, the invention provides a simple and rapid testing device for a load test of a marine balance beam, which comprises a tooling part 4, wherein the tooling part 4 consists of a support frame and a tooling lever, one end of the tooling lever is hinged and fixed with the support frame, a base 1 is arranged below the other end of the tooling lever, a jack 3 is arranged at the top end of the base 1, a pressure gauge 2 is arranged at the bottom of the jack 3, the top end of the jack 3 is in contact with the bottom of the tail end of the tooling lever, a shackle 6 is arranged on the tooling lever, and a steel wire rope 5 for connecting the balance beam is arranged on the shackle 6.
A use method of a simple and rapid testing device for a load test of a balance beam for a ship comprises the following steps:
s1, checking a welding seam UT inspection report of the balance beam, and determining whether a tension test can be executed;
s2, carrying the balance beam to a designated test site and fixing the balance beam;
s3, checking the tool and the related detecting instrument;
s4, installing a tool according to requirements, and detecting a welding seam between the tool and the balance beam;
s5, arranging a total station and an observation line;
s6, testing the balance beam test node;
s7, testing that the test equipment and the tooling are installed and fixed in place, fastening the steel cable tool in place, fixing the supporting seat and the jack in place, and sticking the strain gauge in place;
s8, starting the lifting range of the jack, and checking the display number of the pressure gauge; according to the use requirement of the hydraulic jack, the test jacking is continuously increased from 0 to the test tonnage, when the test pressure value shows 1/4T-1/2T-3/4T-T of the test tonnage, all data are observed and recorded according to a test record table, and the appearance of a welding line and the appearance of a main hanging pipe are observed until the single-point test is completed;
s9, completing a balance beam single-point test and forming a record;
s10, dismantling test equipment and a tool, and cutting off the connecting part of the test tool and the balance beam body by a distance of 50mm to avoid cutting the balance beam body and complete resetting;
s11, after the test is finished, according to the detection result of the stress strain gauge, determining whether the stress of the related structure is smaller than the allowable stress and whether the deformation is in the elastic deformation; and (3) detecting main welding seams at the nodes after the test, if the structure is not deformed and the welding seams have no defects, considering that the test is successful, and the structure conforms to the theoretical calculation result, thereby meeting the actual hoisting requirement.
The sticking of the strain gauge in place is embodied as follows:
s1, cleaning and flattening the metal surface by using a tool, and removing dirt by using alcohol;
s2, determining the sticking position and direction of the strain gauge and marking correspondingly;
s3, uniformly coating the adhesive on the position to be pasted;
s4, pasting the strain gauge to the good position, placing the strain gauge on the strain gauge by using a polyester sheet, and standing for 5 minutes;
s5, measuring the strain gauge by using a universal meter to ensure that the strain gauge is not damaged and works normally;
s6, sealing the strain gauge by using sealant to prevent the strain gauge from being affected with damp;
s7, welding a cable lead;
s8, detecting the strain gauge by using a universal meter again, and determining the strain gauge to be intact;
s9, fixing the cable lead by using hot melt adhesive;
and S10, connecting a strain gauge for detection.
According to the simple and rapid testing device for the load test of the balance beam for the ship and the using method thereof, the stress condition and the stress magnitude of a main hanging pipe in the hoisting process are simulated through the tool, the structural tool is divided into two supporting points, the stress of a steel wire rope reaches the actual axial tension value through the jacking of the jack, the strain of a main stress member is detected through the simulated stress test, the actual stress of the structure is converted and compared with the allowable stress, the special requirements of the load test on a tool and a test field are effectively avoided, and the test time and the test cost are greatly reduced.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (3)
1. The utility model provides a simple and easy quick verifying attachment of compensating beam load test for boats and ships, includes frock piece (4), its characterized in that: frock piece (4) comprise support frame and frock lever, it is articulated fixed between the one end of frock lever and the support frame, the other end below of frock lever is provided with base (1), the top of base (1) is provided with jack (3), the bottom of jack (3) is provided with pressure gauge (2), the top of jack (3) and the terminal bottom contact of frock lever, be provided with on the frock lever and break out (6), be provided with wire rope (5) that are used for connecting the compensating beam on breaking out (6).
2. The use method of the simple and rapid testing device for the load test of the marine balance beam comprises the device of claim 1, and is characterized in that:
s1, checking a welding seam UT inspection report of the balance beam, and determining whether a tension test can be executed;
s2, carrying the balance beam to a designated test site and fixing the balance beam;
s3, checking the tool and the related detecting instrument;
s4, installing a tool according to requirements, and detecting a welding seam between the tool and the balance beam;
s5, arranging a total station and an observation line;
s6, testing the balance beam test node;
s7, testing that the test equipment and the tooling are installed and fixed in place, fastening the steel cable tool in place, fixing the supporting seat and the jack in place, and sticking the strain gauge in place;
s8, starting the lifting range of the jack, and checking the display number of the pressure gauge; according to the use requirement of the hydraulic jack, the test jacking is continuously increased from 0 to the test tonnage, when the test pressure value shows 1/4T-1/2T-3/4T-T of the test tonnage, all data are observed and recorded according to a test record table, and the appearance of a welding line and the appearance of a main hanging pipe are observed until the single-point test is completed;
s9, completing a balance beam single-point test and forming a record;
s10, dismantling test equipment and a tool, and cutting off the connecting part of the test tool and the balance beam body by a distance of 50mm to avoid cutting the balance beam body and complete resetting;
s11, after the test is finished, according to the detection result of the stress strain gauge, determining whether the stress of the related structure is smaller than the allowable stress and whether the deformation is in the elastic deformation; and (3) detecting main welding seams at the nodes after the test, if the structure is not deformed and the welding seams have no defects, considering that the test is successful, and the structure conforms to the theoretical calculation result, thereby meeting the actual hoisting requirement.
3. The use method of the simple and rapid test device for the load test of the marine balance beam according to claim 2 is characterized in that: the step of adhering the strain gauge in place in the step of S7 is specifically represented as:
s1, cleaning and flattening the metal surface by using a tool, and removing dirt by using alcohol;
s2, determining the sticking position and direction of the strain gauge and marking correspondingly;
s3, uniformly coating the adhesive on the position to be pasted;
s4, pasting the strain gauge to the good position, placing the strain gauge on the strain gauge by using a polyester sheet, and standing for 5 minutes;
s5, measuring the strain gauge by using a universal meter to ensure that the strain gauge is not damaged and works normally;
s6, sealing the strain gauge by using sealant to prevent the strain gauge from being affected with damp;
s7, welding a cable lead;
s8, detecting the strain gauge by using a universal meter again, and determining the strain gauge to be intact;
s9, fixing the cable lead by using hot melt adhesive;
and S10, connecting a strain gauge for detection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111635413.3A CN114279736A (en) | 2021-12-29 | 2021-12-29 | Simple and rapid testing device for load test of balance beam for ship and using method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111635413.3A CN114279736A (en) | 2021-12-29 | 2021-12-29 | Simple and rapid testing device for load test of balance beam for ship and using method thereof |
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| CN114279736A true CN114279736A (en) | 2022-04-05 |
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| CN202111635413.3A Pending CN114279736A (en) | 2021-12-29 | 2021-12-29 | Simple and rapid testing device for load test of balance beam for ship and using method thereof |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103115791A (en) * | 2013-01-29 | 2013-05-22 | 常州市房产信息中心 | Method and device for field performance detection of steel portal rigid-framed structures |
| CN103759928A (en) * | 2013-12-31 | 2014-04-30 | 中国核工业二三建设有限公司 | Method for detecting bearing load of equalizing beam for hoisting large scale device |
| KR20140004018U (en) * | 2012-12-21 | 2014-07-01 | 현대중공업 주식회사 | Load test apparatus of beam for ship |
| CN104165807A (en) * | 2014-08-13 | 2014-11-26 | 浙江大学 | Large-deflection destruction testing device and method for prestressed concrete plate beam |
| CN110095344A (en) * | 2018-01-31 | 2019-08-06 | 中国核工业第五建设有限公司 | A kind of nuclear power station heavy die block lifting lug load test device and its test method |
| CN212585942U (en) * | 2020-05-22 | 2021-02-23 | 铁正检测科技有限公司 | Bridge load test deflection test connecting device |
-
2021
- 2021-12-29 CN CN202111635413.3A patent/CN114279736A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20140004018U (en) * | 2012-12-21 | 2014-07-01 | 현대중공업 주식회사 | Load test apparatus of beam for ship |
| CN103115791A (en) * | 2013-01-29 | 2013-05-22 | 常州市房产信息中心 | Method and device for field performance detection of steel portal rigid-framed structures |
| CN103759928A (en) * | 2013-12-31 | 2014-04-30 | 中国核工业二三建设有限公司 | Method for detecting bearing load of equalizing beam for hoisting large scale device |
| CN104165807A (en) * | 2014-08-13 | 2014-11-26 | 浙江大学 | Large-deflection destruction testing device and method for prestressed concrete plate beam |
| CN110095344A (en) * | 2018-01-31 | 2019-08-06 | 中国核工业第五建设有限公司 | A kind of nuclear power station heavy die block lifting lug load test device and its test method |
| CN212585942U (en) * | 2020-05-22 | 2021-02-23 | 铁正检测科技有限公司 | Bridge load test deflection test connecting device |
Non-Patent Citations (1)
| Title |
|---|
| 张彤 等: "土木工程结构试验与检测实验指导书", vol. 1, 31 October 2020, 冶金工业出版社, pages: 7 - 9 * |
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