Lifting lug tensile test device

Abstract

The present invention discloses a lifting ear tension test device, comprising: a latch; a hydraulic oil cylinder; a first workpiece, comprising two first side plates and a first connecting plate arranged in parallel, each of the first side plates being provided with a clamping groove and a movable hole penetrating the two side surfaces, the two clamping grooves forming a clamping position, and the first connecting plate and the two first side plates forming an installation cavity; a second workpiece, accommodated in the installation cavity, comprising two second side plates and a second connecting plate arranged in parallel, each of the second side plates being provided with a through hole penetrating the two side surfaces, and the second connecting plate and the two second side plates forming a test cavity; in a test state, the latch can sequentially pass through a movable hole and a through hole into the test cavity and be inserted into the lifting ear, and pass through another through hole and another movable hole; the cylinder of the hydraulic oil cylinder can press against the T-row side surface inserted into the clamping position, and the free end of the telescopic rod of the hydraulic oil cylinder can sequentially pass through the first connecting plate and be detachably connected to the second connecting plate to drive the latch to move.

Description

Technical Field

[0001] The present invention relates to the technical field of shipbuilding, in particular to a lifting eye tension testing device. Background Art

[0002] FPSOs have numerous lifting lugs that require tensile testing. Ship inspections require that the tensile test direction align with the actual force applied. However, when the lifting lugs are installed on the sides of the T-bars, the existing tooling cannot be used for on-site testing. Furthermore, a significant number of the lifting lugs are installed at high altitudes (for example, at the dock, the lifting lugs in the cargo tanks are 30 meters above the bottom). This makes tensile testing not only time-consuming and labor-intensive, but also poses safety risks. Summary of the Invention

[0003] The object of the present invention is to provide a lifting lug tensile test device to solve the problems in the prior art that the lifting lug cannot be subjected to tensile tests and has a low safety factor.

[0004] The above-mentioned purpose of the present invention can be achieved by adopting the following technical solutions:

[0005] The present invention provides a lifting eye tension test device, comprising: a latch; a hydraulic cylinder; a first workpiece, comprising two first side plates arranged in parallel and a first connecting plate arranged at the bottom of the two first side plates, each of the first side plates being provided with a clamping groove and a movable hole passing through the two side surfaces at intervals along its width direction, the two clamping grooves forming a clamping position that is convenient for inserting the T-row side, the first connecting plate and the two first side plates forming an open installation cavity on one side of the clamping position; a second workpiece, accommodated in the installation cavity, comprising two second side plates arranged in parallel and a second connecting plate arranged at the bottom of the two second side plates, each of the first side plates being provided with a clamping groove and a movable hole passing through the two side surfaces at intervals along its width direction, the two clamping grooves forming a clamping position that is convenient for inserting the T-row side surfaces, the first connecting plate and the two first side plates forming an open installation cavity on one side of the clamping position; a second workpiece, housed in the installation cavity, comprising two second side plates arranged in parallel and a second connecting plate arranged at the bottom of the two second side plates, The two side plates are provided with through holes passing through the two side surfaces, and the second connecting plate and the two second side plates form an open test cavity; in the test state, the pin can be sequentially passed through one of the movable holes and one of the through holes into the test cavity and inserted into the lifting ear, and pass through the other through hole and the other movable hole; the cylinder of the hydraulic cylinder can be tightly pressed against the T-row side surface inserted into the clamping position, and the free end of the telescopic rod of the hydraulic cylinder can sequentially pass through the first connecting plate and be detachably connected to the second connecting plate to drive the pin to move in the movable hole along the axial direction of the telescopic rod under the drive of the cylinder.

[0006] Preferably, the width of the first connecting plate is not less than the distance between the two first side plates.

[0007] Preferably, the width of the second connecting plate is not less than the distance between the two second side plates, and the width of the second connecting plate is less than the distance between the two first side plates.

[0008] Preferably, a perforation penetrating through both side surfaces is formed on the second connecting plate for the telescopic rod to be inserted and then cooperated with a fixing member to detachably connect the telescopic rod and the second connecting plate.

[0009] Preferably, the clamping groove has a long side and a short side, and the long side is close to the movable hole.

[0010] Preferably, the distance between the long side and the short side is 30 mm to 70 mm.

[0011] Preferably, the height of the short side is 40 mm to 60 mm.

[0012] Preferably, the height of the first side plate is 290 mm to 575 mm.

[0013] Preferably, the length of the movable hole is not less than 100 mm.

[0014] Preferably, at least one reinforcing plate is arranged on the opposite side walls of the two second side plates along the width direction of the second side plates, and the reinforcing plates are respectively connected to the second side plates and the second connecting plate.

[0015] The advantages and beneficial effects of the present invention are as follows:

[0016] The lug tensile test device of the present invention has the advantages of simple operation, meeting high-altitude operation, reducing labor costs, saving working hours, and improving personnel safety. Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for description in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention, and those of ordinary skill in the art can also obtain other drawings based on these drawings without creative efforts.

[0018] Figure 1 It is a schematic diagram of the use state of the lug tensile test device of the present invention;

[0019] Figure 2 It is the front view of the lug tensile test device of the present invention;

[0020] Figure 3 It is the side view of the lug tensile test device of the present invention;

[0021] Figure 4 It is the top view of the lug tensile test device of the present invention;

[0022] Figure 5 It is the wireframe diagram of the lug tensile test device of the present invention.

[0023] Reference Numerals and Descriptions:

[0024] 100, lug tensile test device; 1, pin; 2, hydraulic cylinder; 21, telescopic rod; 3, first workpiece; 31, first side plate; 32, first connecting plate; 311, clamping groove; 312, movable hole; 313, long side; 314, short side; 33, clamping position; 34, installation cavity; 4, second workpiece; 41, second side plate; 42, second connecting plate; 411, through hole; 43, test cavity; 200, lug; 300, side of T-bar; H, height of the short side; L1, height of the first side plate; L2, length of the movable hole. Detailed Embodiments

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the embodiments described below are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] The present invention provides a lug tensile test device 100. Please refer to Figures 1 to 5 , which includes a pin 1, a hydraulic cylinder 2, a first workpiece 3, and a second workpiece 4.

[0027] Specifically, the first workpiece 3 includes two parallel first side plates 31 and a first connecting plate 32 disposed at the bottom of the two first side plates 31. Each first side plate 31 is provided with a clamping groove 311 and a movable hole 312 that penetrate both side surfaces at intervals along its width direction. The two clamping grooves 311 form a clamping position 33 that facilitates the insertion of the side of the T-bar 300. The first connecting plate 32 and the two first side plates 31 enclose an open installation cavity 34 on one side of the clamping position 33;

[0028] The second workpiece 4 is received in the installation cavity 34 and includes two parallel second side plates 41 and a second connecting plate 42 disposed at the bottom of the two second side plates 41. Each second side plate 41 is provided with a through hole 411 that penetrates both side surfaces. The second connecting plate 42 and the two second side plates 41 enclose an open test cavity 43;

[0029] Under test conditions, the bolt 1 can sequentially pass through an active hole 312 and a through hole 411 and enter the test chamber 43 to be inserted into the lifting lug 200, and then pass out through another through hole 411 and another active hole 312; the cylinder of the hydraulic cylinder 2 can abut against the side surface 300 of the T row inserted into the clamping position 33, and the free end of the telescopic rod 21 of the hydraulic cylinder 2 can sequentially pass through the first connecting plate 32 and be detachably connected to the second connecting plate 42, so as to drive the bolt 1 to move axially along the telescopic rod 21 in the active hole 312 under the drive of the cylinder.

[0030] The device of the present invention has a simple structure and is easy to use. It can be operated by 2 to 3 people, and the tensile test of 1 lifting lug 200 can be completed in 0.5 to 1 hour. The operability and efficiency are greatly improved compared with the previous iron weight lifting. In some specific embodiments, the total number of such side lifting lugs 200 is 267, and none of them have been tested. Using the device of the present invention for testing, calculated by saving 3 hours of working hours for each lifting lug 200, a total of 801 hours of working hours are saved.

[0031] In some embodiments, please refer to Figures 2 to 5 , the width of the first connecting plate 32 is not less than the distance between the two first side plates 31.

[0032] Furthermore, the width of the second connecting plate 42 is not less than the distance between the two second side plates 41, and the width of the second connecting plate 42 is less than the distance between the two first side plates 31.

[0033] In some embodiments, please refer to Figures 2 to 5 , a through hole penetrating both side surfaces is provided on the second connecting plate 42 for the telescopic rod 21 to be inserted and then cooperated with a fixing member to detachably connect the telescopic rod 21 to the second connecting plate 42.

[0034] In some embodiments, please refer to Figure 3 and Figure 5 , the clamping groove 311 has a long side 313 and a short side 314, and the long side 313 is close to the active hole 312. Furthermore, the distance between the long side 313 and the short side 314 is 30 mm to 70 mm. Further still, the height H of the short side 314 is 40 mm to 60 mm.

[0035] In some embodiments, please refer to Figure 5 , the height L1 of the first side plate 31 is 290 mm to 575 mm. Further, the length L2 of the active hole 312 is not less than 100 mm.

[0036] In some embodiments, at least one reinforcing plate is provided on the opposite side walls of the two second side plates 41 along the width direction of the second side plate 41, and the reinforcing plates are respectively connected to the second side plate 41 and the second connecting plate 42.

[0037] The working principle of the present invention is as follows:

[0038] After the hydraulic cylinder 2 is pressurized, a force is generated to press against the side surface 300 of the T row inserted into the clamping position 33. By adjusting the length of the telescopic rod 21, the bolt 1 is pressed against the lifting lug 200, and the length of the telescopic rod 21 is continuously adjusted to complete the test of the lifting lug 200. Among them, the tensile force = oil pressure * cylinder plunger area.

[0039] The present invention has at least the following advantages:

[0040] The lifting lug tensile test device 100 of the present invention has the advantages of simple operation, meeting high-altitude operation requirements, reducing labor costs, saving working hours, and improving personnel safety.

[0041] The above is only a preferred embodiment of the present invention, and does not impose any form of limitation on the present invention. Although the present invention has been disclosed above with a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments by using the disclosed technical content within the scope of the technical solution of the present invention. However, any simple modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. An earring tensile test device, characterized in that Comprising: Latch pin; Hydraulic cylinder; The first workpiece, including two first side plates arranged in parallel and a first connecting plate arranged at the bottom of the two first side plates. Along the width direction of each first side plate, there are a clamping groove and a movable hole penetrating through both side surfaces at intervals. The two clamping grooves form a clamping position for facilitating the insertion of the side surface of the T-shaped row. The first connecting plate and the two first side plates enclose an open installation cavity on one side of the clamping position; The second workpiece, housed in the installation cavity, including two second side plates arranged in parallel and a second connecting plate arranged at the bottom of the two second side plates. Each second side plate is provided with a through hole penetrating through both side surfaces. The second connecting plate and the two second side plates enclose an open test cavity; In the test state, the latch pin can sequentially pass through a movable hole and a through hole and enter the test cavity to be inserted into the lifting lug, and then pass through the other through hole and the other movable hole; the cylinder of the hydraulic cylinder can abut against the side surface of the T-shaped row inserted into the clamping position, and the free end of the telescopic rod of the hydraulic cylinder can sequentially pass through the first connecting plate and be detachably connected to the second connecting plate to drive the latch pin to move along the axial direction of the telescopic rod in the movable hole under the drive of the cylinder.

2. The lug tensile test device according to claim 1, wherein The width of the first connecting plate is not less than the distance between the two first side plates.

3. The lug tensile test device according to claim 2, wherein, The width of the second connecting plate is not less than the distance between the two second side plates, and the width of the second connecting plate is less than the distance between the two first side plates.

4. The lug tensile test device according to claim 3, characterized in that, A through hole penetrating through both side surfaces is formed on the second connecting plate for the telescopic rod to be inserted and then cooperated with a fixing member to detachably connect the telescopic rod to the second connecting plate.

5. The lug tensile test device according to any one of claims 1 to 4, characterized in that, The clamping groove has a long side and a short side, and the long side is close to the movable hole.

6. The lug tensile test device according to claim 5, wherein, The distance between the long side and the short side is 30 millimeters to 70 millimeters.

7. The lug tensile test device according to claim 6, characterized in that, The height of the short side is 40 millimeters to 60 millimeters.

8. The lug tensile test device according to any one of claims 1 to 4, characterized in that, The height of the first side plate is 290 millimeters to 575 millimeters.

9. The lug tensile test device according to claim 8, wherein, The length of the movable hole is not less than 100 millimeters.

10. The lug tensile test device according to claim 9, characterized in that, On the opposite side walls of the two second side plates, at least one reinforcing plate is arranged along the width direction of the second side plate, and the reinforcing plates are respectively connected to the second side plates and the second connecting plate.

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