CN117232986A - Pulling force testing method of lifting lug for maintaining ship equipment - Google Patents
Pulling force testing method of lifting lug for maintaining ship equipment Download PDFInfo
- Publication number
- CN117232986A CN117232986A CN202311039640.9A CN202311039640A CN117232986A CN 117232986 A CN117232986 A CN 117232986A CN 202311039640 A CN202311039640 A CN 202311039640A CN 117232986 A CN117232986 A CN 117232986A
- Authority
- CN
- China
- Prior art keywords
- lifting lug
- lifting
- tension
- ship
- plumb line
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000012360 testing method Methods 0.000 title claims description 58
- 238000012423 maintenance Methods 0.000 claims abstract description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 17
- 239000010959 steel Substances 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 10
- 230000005484 gravity Effects 0.000 claims description 4
- 238000013459 approach Methods 0.000 claims description 3
- 238000010998 test method Methods 0.000 abstract description 3
- 238000009864 tensile test Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model relates to a tension test method of a lifting lug for ship equipment maintenance, which comprises the following steps of preparing an auxiliary device, wherein the auxiliary device comprises a body, a lifting ring is arranged in the center of the top of the body, a lifting lug with a plumb line is arranged at the center point of the back surface of the top of the body, a side lifting lug and a center measuring hole with a small hole are arranged on the side surface of the body, the plumb line with a plumb hammer passes through the center measuring hole and is connected with the lifting lug with the plumb line in the center of the top of the body.
Description
Technical Field
The utility model relates to the field of ship construction, in particular to a tension testing method for lifting lugs of ship equipment.
Background
The top of each large motor of the ship is provided with a lifting lug for maintenance, and each lifting lug is required to be subjected to vertical tension test according to the ship mooring test outline. However, since the motor is already installed in the process of subsection preassembly, the vertical point of the lifting lug is arranged at the top of the motor, the motor body cannot be used for tensile testing, and the vertical center point of the maintenance lifting lug cannot provide an anchor point on the motor, an external anchor point is required to be provided for testing, and the anchor point must be perpendicular to the lifting lug beam.
In the prior art, chinese patent 202120795378.0 discloses a maintenance lifting lug of large equipment of a ballast water treatment device, and the maintenance lifting lug of the large equipment of the ballast water treatment device only solves the problem that the modification of small ship ballast water cannot meet the maintenance space of some large equipment, cannot solve the problem of providing a ship motor lifting lug with a tensile force perpendicular to a hanging beam, and is not suitable for the scene applied by the utility model.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art and provides a tension testing method for lifting lugs of ship equipment.
The tension test method of the ship motor lifting lug is characterized in that the ship motor lifting lug is attached to a lifting beam above a ship motor, and the lifting beam is fixed on a ship deck structure through bolts, and the method comprises the following steps:
step 1, preparing an auxiliary testing device, wherein the ship motor lifting lug is connected with the auxiliary testing device, the auxiliary testing device comprises a body, the body is a circular ring with a square cross section, three side lifting lugs are arranged on the outer side of the circular ring, a center measuring hole is formed in the center of the circular ring, three cylinders are uniformly distributed on the surface of the circular ring at an angle of 120 degrees, the bottom of each cylinder is fixedly connected with the circular ring, the top of each cylinder is fixedly connected at an angle of 45 degrees, a lifting ring is arranged at the fixedly connected position of the top of each cylinder, and plumb line lifting lugs are arranged on the inner side of the counter top of each lifting ring;
step 2, hanging one end of a first steel wire rope on the lifting lug of the ship motor through a lifting ring of the auxiliary testing device, and connecting the other end of the first steel wire rope with a tension meter;
step 3, a plumb line lifting lug of the auxiliary testing device is connected with a plumb line, the plumb line lifts the plumb hammer, the plumb line passes through a central measuring hole of the auxiliary testing device, and the tip of the plumb hammer is close to the top of the motor;
step 4, adjusting the length of the plumb line, and marking when the tip of the plumb line approaches the top of the motor;
step 5, three second steel wire ropes penetrate through the side lifting lugs, 3 fixing points are connected, the length of the second steel wire ropes is adjusted, the tip of the plumb bob coincides with the marked point in the step 4, and the ship motor lifting lugs meet the requirement of testing tension;
step 6, measuring the carrying capacity of the lifting lug of the ship motor, adjusting the tension of the first steel wire rope to enable the reading of the tension meter to reach the required requirement, and testing the tension or the gravity;
step 7, recording a test result, and recording a tension value and deformation or fracture conditions of the lifting lug during the test;
and 8, after the tension test is finished, removing the auxiliary measuring device. .
The tensile force testing method of the lifting lug of the ship equipment has the following beneficial effects in the practice of ship construction through use:
the utility model provides a simple and feasible lifting lug tension test method with accurate and reliable test results, which is suitable for testing lifting lugs for various equipment maintenance. The method does not need professional testing equipment and technology, has lower cost and can be widely applied to actual production.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of a tensile testing device for lifting lugs of ship equipment.
Fig. 2 is a schematic view of a plumb line lifting lug of a tensile testing device for a lifting lug of a marine vessel equipment.
Fig. 3 is a schematic diagram of a method for testing the tensile force of a lifting lug of a ship device.
The reference numerals in the figures are:
1-lifting ring, 2-side lifting lug, 3-plumb line, 4-plumb line, 5-body, 6-center measuring hole, 7-plumb line lifting lug, 8-first wire rope, 9-ship motor lifting lug, 10-tension meter, 11-motor, 12-second wire rope, 13-fixed point, 14-lifting beam
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
The utility model will be further described in detail with reference to the drawings and specific examples, which should not be construed as limiting the scope of the utility model.
The top of each large motor of the ship is provided with a lifting lug for maintenance, and each lifting lug is required to be subjected to vertical tension test according to the ship mooring test outline. However, since the motor is already installed in the process of preassembling the ship section, the vertical point of the lifting lug of the ship motor is arranged at the top of the motor, and the tension test cannot be performed by using the motor body, an anchor point is required to be provided outside the motor for test use, and the anchor point must be perpendicular to the hanging beam of the lifting lug of the ship motor.
As shown in fig. 1-2, the auxiliary testing device comprises a body 5, the body 5 is a ring with a square cross section, three side lifting lugs 2 are arranged on the outer side of the ring, a center measuring hole 6 is formed in the center of the ring, three cylinders are uniformly distributed on the surface of the ring at an angle of 120 degrees, the bottom of each cylinder is fixedly connected with the ring, the top of each cylinder is fixedly connected at an angle of 45 degrees, a lifting ring 1 is arranged at the fixedly connected position of the top of each cylinder, and plumb line lifting lugs 7 are arranged on the inner side of the opposite top of each lifting ring 1.
As shown in fig. 3, a tension testing method of a lifting lug for maintaining ship equipment comprises the following steps:
step 1, preparing an auxiliary testing device, wherein the auxiliary testing device comprises a body 5, the body 5 is a circular ring with a square cross section, three side lifting lugs 2 are arranged on the outer side of the circular ring, a center measuring hole 6 is formed in the center of the circular ring, three cylinders are uniformly distributed on the surface of the circular ring at an angle of 120 degrees, the bottom of each cylinder is fixedly connected with the circular ring, the top of each cylinder is fixedly connected at an angle of 45 degrees, a lifting ring 1 is arranged at the fixedly connected position of the top of each cylinder, and a plumb line lifting lug 7 is arranged on the inner side of the opposite top of each lifting ring 1;
step 2, the ship motor lifting lug 9 is attached to a lifting beam above the ship motor, and the lifting beam is fixed on a ship deck structure through bolts;
step 3, one end of a first steel wire rope 8 is hung on the ship motor lifting lug 9 through the lifting ring 1 of the auxiliary testing device, and the other end of the first steel wire rope 8 is connected with a tension meter 10;
step 3, a plumb line lifting lug 7 of the auxiliary testing device is connected with a plumb line 3, the plumb line 3 lifts a plumb line 4, the plumb line 3 passes through a central measuring hole 6 of the auxiliary testing device, and the tip of the plumb line 4 is close to the top of a motor 11;
step 4, adjusting the length of the plumb line 3, wherein the plumb line 3 cannot touch the surrounding wall of the central point, and marking when the tip of the plumb 4 approaches the top of the motor 11;
step 5, three second steel wire ropes 12 penetrate through the side lifting lugs 2, 3 fixed points 13 are connected, the length of the second steel wire ropes 12 is adjusted, the tip of the plumb 4 coincides with the marked point in the step 4, the plumb line 3 cannot touch the surrounding wall of the central point, and the ship motor lifting lugs 9 meet the requirement of testing tension;
and 6, measuring the carrying capacity of the ship motor lifting lug 9, adjusting the tension of the first steel wire rope 8 to enable the reading of the tension meter 10 to reach the required requirement, and testing the tension or the gravity.
And 7, recording a test result, and recording a tension value and deformation or fracture conditions of the lifting lug during the test.
And 8, after the tension test is finished, removing the auxiliary measuring device.
The carrying capacity and durability of the evaluation lifting lug can be quantitatively analyzed or qualitatively evaluated according to the deformation condition and the tension value of the lifting lug.
Wherein the tension value can be displayed and recorded in real time through a digital display or a computer.
According to the method, the specific test auxiliary device is used, so that the bearing capacity of the lifting lug can be accurately tested, and a reliable basis is provided for the use of the lifting lug. In the testing process, the tension of the first steel wire rope 8 is adjusted to enable the reading of the tension meter to reach the required requirement, and then the tension (gravity) test can be performed. According to the measurement result, whether the bearing capacity of the lifting lug meets the requirement can be judged.
The above is only one implementation of the present utility model patent, and other similar method substitutions and structural substitutions are also possible based on the same idea, and are not limited to the steps and structural components already described. In summary, the scope of the utility model also includes other variations and alternatives that will be apparent to those skilled in the art.
Claims (6)
1. The tension testing method of the lifting lug for ship equipment maintenance is characterized in that the lifting lug (9) of the ship motor is attached to a hanging beam above the ship motor, and the hanging beam is fixed on a ship deck structure through bolts, and comprises the following steps:
step 1, preparing an auxiliary testing device, wherein the ship motor lifting lug (9) is connected with the auxiliary testing device, the auxiliary testing device comprises a body (5), the body (5) is a circular ring with a square cross section, three side lifting lugs (2) are arranged on the outer side of the circular ring, a central measuring hole (6) is arranged in the center of the circular ring, three cylinders are uniformly distributed on the surface of the circular ring at an angle of 120 degrees, the bottom of each cylinder is fixedly connected with the circular ring, the top of each cylinder is fixedly connected with the top of each other at an angle of 45 degrees, a lifting ring (1) is arranged at the fixedly connected position of the top of each cylinder, and plumb line lifting lugs (7) are arranged on the inner side of the counter top of each lifting ring (1);
step 2, one end of a first steel wire rope (8) is hung on the ship motor lifting lug (9) through the lifting ring (1) of the auxiliary testing device, and the other end of the first steel wire rope (8) is connected with a tension meter (10);
step 3, a plumb line lifting lug (7) of the auxiliary testing device is connected with a plumb line (3), the plumb line (3) lifts a plumb line (4), the plumb line (3) passes through a central measuring hole (6) of the auxiliary testing device, and the tip of the plumb line (4) is close to the top of a motor (11);
step 4, adjusting the length of the plumb line (3), and marking an anchor point when the tip of the plumb line (4) approaches the top of the motor (11);
step 5, three second steel wire ropes (12) penetrate through the side lifting lugs (2) and are connected with 3 fixed points (13), the length of the second steel wire ropes (12) is adjusted, the tip of the plumb bob (4) is overlapped with the marked anchor point in the step 4, and the ship motor lifting lugs (9) meet the requirement of testing tensile force;
step 6, measuring the load capacity of the ship motor lifting lug (9), adjusting the tension of the first steel wire rope (8) to enable the reading of the tension meter (10) to reach the required requirement, and testing the tension or the gravity;
step 7, recording a test result, and recording a tension value and deformation or fracture conditions of the lifting lug during the test;
and 8, after the tension test is finished, removing the auxiliary measuring device.
2. The tension testing method of lifting lugs for ship equipment maintenance according to claim 1, wherein each side lifting lug (2) is uniformly distributed at 120 degrees on the side edge of the body circular ring.
3. The tension testing method of lifting lugs for maintaining ship equipment according to claim 1, wherein in step 3, the lifting lug (9) to be tested, the tension meter (10), the center point of the body (5) and the plumb (4) are perpendicular to the hanging beam in a straight line.
4. The method according to claim 1, characterized in that in step 4, the center points of the lifting lug (9), the tension meter (10) and the body (5) to be tested and the plumb (4) are on the same axis.
5. The method for testing the pulling force of the lifting lug for maintaining the ship equipment according to claim 1, wherein in the step 6, the pulling force gauge (10) is adjusted by pulling the first steel wire rope (8) in cooperation with the manual chain block.
6. The tension testing method of lifting lugs for maintaining ship equipment according to claim 1, wherein supporting rods for evenly distributing and supporting center points are arranged in the circular ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311039640.9A CN117232986A (en) | 2023-08-17 | 2023-08-17 | Pulling force testing method of lifting lug for maintaining ship equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311039640.9A CN117232986A (en) | 2023-08-17 | 2023-08-17 | Pulling force testing method of lifting lug for maintaining ship equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117232986A true CN117232986A (en) | 2023-12-15 |
Family
ID=89095683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311039640.9A Pending CN117232986A (en) | 2023-08-17 | 2023-08-17 | Pulling force testing method of lifting lug for maintaining ship equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117232986A (en) |
-
2023
- 2023-08-17 CN CN202311039640.9A patent/CN117232986A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105651684B (en) | The detection method of post-tensioned concrete structure friction loss and anchorage loss | |
| CN206583391U (en) | A kind of detection means of bearing axial play | |
| CN110208114B (en) | Interface vibration single shear test device and method for simulating power contact problem | |
| CN107621402B (en) | A kind of lever Analysis of Concrete Tensile Creep Loading Equipment | |
| CN206362623U (en) | A kind of instrument of field measuring rock point load intensity | |
| CN107300432A (en) | A kind of method and apparatus for being used to realize live adaptive cable force measurement | |
| CN108625410A (en) | A kind of test method of pile side friction | |
| CN1694133A (en) | Arch bridge expiremental stage | |
| CN110879175A (en) | Replaceable loading head type load tester for calcareous sand | |
| CN117232986A (en) | Pulling force testing method of lifting lug for maintaining ship equipment | |
| CN206902781U (en) | The detection means of anchor pole internal force exterior measuring | |
| CN209542299U (en) | For testing the device of test specimen tensile strength | |
| CN109100232B (en) | Testing device for detecting vertical bearing capacity of climbing cone of bridge tower and using method | |
| CN105509683B (en) | Displacement measuring device for self-balancing pile testing method | |
| CN111829878A (en) | Mechanical property testing device and method for angle steel reinforcing member of power transmission tower | |
| CN218270864U (en) | Vibration sinking barrel test device | |
| CN114354355A (en) | Stern anchor frame overload test method | |
| CN205426502U (en) | Prestressing force strand steering gear mechanical testing device | |
| CN108613800A (en) | A kind of ship draw-bar pull test method | |
| CN109781407B (en) | Traction machine loading test platform | |
| CN110017764B (en) | Method for measuring lateral deformation under different confining pressure conditions | |
| CN209166391U (en) | A kind of steel reinforced concrete protective layer thickness gauge marking reinforcement location | |
| CN111622276A (en) | Method for detecting vertical pressure-pull resistance of single pile foundation | |
| CN111721510A (en) | Intelligent diagnosis method for steel crane beam based on real-time monitoring | |
| CN217006721U (en) | Tensile test tool |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |