Lifting lug load test tool

By designing a tool for lifting ear load testing, using I-shaped main beam and A-shaped leg structure, and completing the test with hand-pulled hoists, the problem of reduced use efficiency caused by crane dependence is solved, and an efficient, safe and simple testing process is achieved.

CN223005888UActive Publication Date: 2025-06-20CHINA SHIPBUILDING (TIANJIN) SHIPBUILDING CO LTD
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Patent Information

Application Number
CN202421887838.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-06
Publication Date
2025-06-20
Estimated Expiration
2034-08-06

AI Technical Summary

Technical Problem

The prior art requires reliance on cranes in lift load testing, resulting in a reduced crane efficiency and affecting production progress.

Method used

A lift load testing tooling is designed, including the main beam and the legs. The main beam adopts an I-shaped structure, and the legs form an A-shaped structure. The test can be completed through hand-pulled hoists to avoid dependence on the crane.

Benefits of technology

The test tooling is simple in structure, convenient in production and low in cost, and can meet the strength requirements, avoid crane occupation, improve production efficiency and save costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a lifting lug load testing tool which comprises a main beam and at least two supporting legs. The main beam adopts an I-shaped structure; the supporting leg comprises a pair of T-shaped panels, one ends of the pair of T-shaped panels are fixedly connected, and the pair of T-shaped panels are connected through a connecting plate, so that the supporting leg forms an A-shaped structure; a platform plate is fixedly installed on the top faces of the supporting legs, and the main beam is fixedly installed at the top ends of the supporting legs through the platform plate. A lifting lug is fixedly mounted at the bottom of the main beam, and the main beam can bear 20t tensile force; the testing tool provided by the utility model is simple in structure, convenient to manufacture and low in cost, not only meets the strength requirement, but also avoids occupying a crane, and can be widely popularized to other ship projects.
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Description

Technical Field

[0001] The utility model belongs to the technical field of shipbuilding, and particularly relates to a lifting lug load test tooling. Background Art

[0002] During shipbuilding, many permanent lifting lugs need to be installed for equipment maintenance and other aspects; according to the requirements of the shipowner, some lifting lugs need to be subjected to load tests after installation to ensure that the lifting lugs meet the corresponding requirements.

[0003] Currently, the method adopted by shipyards is to directly use a crane to hang a tensiometer for testing. Since the test results of the lifting lugs need to be witnessed by the owner on site, after the site is properly prepared, it is necessary to contact and wait for the owner to arrive at the site to confirm the results. This process continuously occupies the crane, seriously affecting the allocation and use of the crane, reducing the use efficiency of the crane, and affecting the production progress. Summary of the Invention

[0004] In order to solve the problems mentioned in the background art, the utility model researches and designs a lifting lug load test tooling, which can get rid of the dependence on the crane. Through this test tooling and a chain block, the relevant test can be completed, saving the dependence on the crane for this work and saving a large amount of costs;

[0005] The utility model solves its technical problems by adopting the following technical solutions:

[0006] A lifting lug load test tooling includes a main beam and at least two legs;

[0007] The main beam adopts an I-shaped structure; the legs include a pair of T-shaped panels. One end of the pair of T-shaped panels is fixedly connected, and the pair of T-shaped panels are connected by a connecting plate, so that the legs form an A-shaped structure; a platform plate is fixedly installed on the top surface of the legs, and the main beam is fixedly installed at the top end of the legs through the platform plate;

[0008] A lifting lug is fixedly installed at the bottom of the main beam, and the main beam can bear a tensile force of 20t.

[0009] Further, the legs are symmetrically distributed below the main beam.

[0010] Further, the lifting lug is located at the middle position of the legs.

[0011] Further, the main beam includes a pair of panels, and the pair of panels are connected by a web to form an I-shaped structure. The main beam is fixed on the platform plate through the panels.

[0012] The advantages and positive effects of the utility model are:

[0013] The test tooling provided by the utility model has a simple structure, is convenient to manufacture, and has a low cost. It not only meets the strength requirements but also avoids occupying the crane, and can be widely promoted to other ship projects. Brief Description of the Drawings

[0014] The technical solution of the utility model will be further described in detail below in conjunction with the drawings and embodiments. However, it should be noted that these drawings are only designed for explanatory purposes and therefore do not limit the scope of the utility model. In addition, unless otherwise specified, these drawings are only intended to conceptually illustrate the structural configuration described herein and are not necessarily drawn to scale.

[0015] Figure 1 It is a longitudinal sectional view of the lug load test tooling provided by the utility model;

[0016] Figure 2 It is a side view of the lug load test tooling provided by the utility model;

[0017] Figure 3 It is a top view of the lug load test tooling provided by the utility model;

[0018] Figure 4 It is a structural schematic diagram of the lug load test tooling provided by the utility model. Detailed Embodiments

[0019] First of all, it should be noted that the following will specifically illustrate the specific structure, characteristics, and advantages of the utility model by way of examples. However, all the descriptions are only for the purpose of explanation and should not be construed as any limitation to the utility model. In addition, any single technical feature described or implied in each of the embodiments mentioned herein, or any single technical feature shown or implied in each of the drawings, can still be arbitrarily combined or deleted between these technical features (or their equivalents) to obtain more other embodiments of the utility model that may not be directly mentioned herein. In addition, for the sake of simplifying the drawings, the same or similar technical features may only be marked in one place in the same drawing.

[0020] The following will specifically illustrate the utility model in conjunction with Figures 1 to 4 to specifically illustrate the utility model.

[0021] A lug load test tooling provided in this embodiment includes a main beam 1 and at least two legs 3;

[0022] The outriggers include a pair of T-shaped panels 301. One end of the pair of T-shaped panels is fixedly connected, and the pair of T-shaped panels are connected by a connecting plate 302, so that the outriggers form an A-shaped structure. It should be noted that the outriggers are strengthened by using T-shaped panels to ensure the rigidity of the outriggers. In order to ensure the strength, the material of the outriggers can be considered as AH36 marine steel plate;

[0023] A platform plate 2 is fixedly installed on the top surface of the outriggers, and the main beam is fixedly installed at the top end of the outriggers through the platform plate; in this embodiment, a rectangular platform plate is used to connect the main beam and the outriggers to ensure the connection strength.

[0024] The main beam adopts an I-shaped structure because through simulation calculation, this shape interface has excellent bending resistance; specifically, in this embodiment, the main beam includes a pair of panels 101, and the pair of panels are connected by a web 102 to form an I-shaped structure. The main beam is fixed on the platform plate through the panels. This structure is simple to manufacture and meets the strength requirements; the material of the main beam can be Q235 steel plate.

[0025] A lifting lug 4 is fixedly installed at the bottom of the main beam, and the main beam can bear a tensile force of 20t; in order to enable the test tooling to better realize the test function and improve the test accuracy during the test, it can be considered that the outriggers are symmetrically distributed below the main beam, and the lifting lug is located in the middle position of the outriggers; specifically, in this embodiment, there are a pair of outriggers, and the pair of outriggers are symmetrically distributed below the main beam, and the lifting lug is distributed in the exact middle position of the pair of outriggers.

[0026] As an example, in this embodiment, the test tooling adopts a "door"-type frame structure, uses an I-shaped main beam structure as the main load-bearing structure, and uses "A"-shaped outriggers on both sides for stable support. The outriggers adopt a "T"-type structure to ensure the stability of the support. When in use, place this tooling above the lifting lug to be tested, hang a chain block and a dynamometer under the lifting lug of this tooling in sequence, adjust the chain block, hang the hook under the dynamometer on the lifting lug to be tested, pull the chain block, and at the same time observe the reading of the dynamometer to reach the rated load of the lifting lug, then the lifting lug load test can be completed.

[0027] In summary, this test tooling is simple to use, can be operated manually, can complete the lifting lug load test without the cooperation of a crane, greatly saves costs, and is safer, more reliable and simpler to use.

[0028] The above embodiments have described the present invention in detail, but the above content is only the preferred embodiment of the present invention and cannot be considered as limiting the implementation scope of the present invention. All equivalent changes and improvements made according to the scope of the application of the present invention should still fall within the scope covered by the patent of the present invention.

Claims

1. A lifting lug load test tool, characterized in that: It includes a main beam and at least two legs; The main beam adopts an I-shaped structure; the legs include a pair of T-shaped panels, one end of the pair of T-shaped panels is fixedly connected, and the pair of T-shaped panels are connected by a connecting plate, so that the legs form an A-shaped structure; a platform plate is fixedly installed on the top surface of the legs, and the main beam is fixedly installed on the top of the legs through the platform plate; The bottom of the main beam is fixed with a lifting lug, and the main beam can bear a pulling force of 20t.

2. The lug load test tool according to claim 1, characterized in that: The supporting legs are symmetrically distributed below the main beam.

3. The lug load test tool according to claim 2, characterized in that: The lifting lug is located at the middle position of the supporting leg.

4. The lug load test tool according to claim 1, characterized in that: The main beam comprises a pair of panels, the pair of panels are connected via a web plate to form an I-shaped structure, and the main beam is fixed to the platform plate via the panels.