Tool for tension test of thin film type insulating plate for LNG (Liquefied Natural Gas) ship

Abstract

The utility model discloses a tool for testing the tension of a thin film type insulating plate for an LNG (Liquefied Natural Gas) ship, which comprises two connecting blocks and two fixing heads, each connecting block consists of an adhesion part and an insertion part, the adhesion parts of the two connecting blocks are adhered to the two ends of an insulating plate sample through glue, and the insertion parts of the two connecting blocks are inserted into the fixing heads. The fixing head and the inserting part are respectively provided with a bolt and a bolt hole which are matched with each other, the fixing head is fixedly connected to the inserting part through the bolt, and the fixing head is arranged on a testing shaft of the tension testing machine. According to the utility model, an insulating plate sample can be effectively fixed through the two connecting blocks and the two fixing heads, and a test shaft of a tension tester can be connected through the fixing heads, so that the position stability of the insulating plate sample in the test process is ensured under the condition of keeping normal test, and the test efficiency is improved. And the stability and the accuracy of the tension test are improved.

Description

Technical Field

[0001] This utility model belongs to the field of liquefied natural gas and relates to tensile testing of thin-film insulating sheets for LNG ships, specifically to a tooling for tensile testing of thin-film insulating sheets for LNG ships. Background Technology

[0002] The storage tank of an LNG (liquefied natural gas) ship is a container used to store liquefied natural gas. The storage tank includes an insulation layer and a sealing layer. The insulation layer is composed of thin-film insulation boards of different specifications spliced ​​together. Due to the special properties of liquefied natural gas, the insulation layer needs to provide very high insulation performance to the storage tank. The tensile strength of the insulation board is an important indicator of insulation performance. Therefore, it is necessary to conduct tensile tests on the thin-film insulation board before preparing the insulation board. However, existing tensile testing machines cannot directly test the thin-film insulation board. Even if insulation board samples are made, the samples cannot be effectively fixed, resulting in less than ideal stability and accuracy of tensile testing. Summary of the Invention

[0003] Purpose of the invention: In order to overcome the shortcomings of the existing technology, a tooling for tensile testing of thin-film insulating sheets for LNG ships is provided, which can effectively fix the insulating sheet sample and improve the stability and accuracy of tensile testing.

[0004] Technical Solution: To achieve the above objectives, this utility model provides a tooling for tensile testing of LNG ship film-type insulating sheets, comprising two connecting blocks and two fixing heads. Each connecting block consists of an adhesive part and a plug-in part. The adhesive parts of the two connecting blocks are bonded to both ends of the insulating sheet sample with adhesive. The fixing heads and plug-in parts are respectively provided with matching pins and pin holes. The fixing heads are fixedly connected to the plug-in parts by pins. The fixing heads are mounted on the test shaft of the tensile testing machine.

[0005] Furthermore, both the adhesive portion and the adhesive surface of the insulating board sample are square, which facilitates butt bonding.

[0006] Furthermore, the fixing head is provided with a plug-in groove that matches the plug-in part.

[0007] Furthermore, the insertion slot has an open structure on both sides, which facilitates the insertion and removal of the insertion part.

[0008] Furthermore, the fixing head is integrally formed with the test shaft of the tensile testing machine.

[0009] Beneficial effects: Compared with the prior art, this utility model can effectively fix the insulating board sample by means of two connecting blocks and two fixing heads, and can connect to the test shaft of the tensile testing machine through the fixing heads. Under normal testing conditions, it ensures the positional stability of the insulating board sample during the testing process, and improves the stability and accuracy of tensile testing. Attached Figure Description

[0010] Figure 1 This is a schematic diagram showing the connection between the insulating board sample and the two connecting blocks.

[0011] Figure 2 This is a diagram showing the overall connection structure of the tooling;

[0012] Figure 3 This is a sectional view showing the connection between the connecting block and the fixing head. Detailed Implementation

[0013] The present invention will be further illustrated below with reference to the accompanying drawings and specific embodiments. It should be understood that these embodiments are only for illustrating the present invention and are not intended to limit the scope of the present invention. After reading the present invention, any modifications of the present invention in various equivalent forms by those skilled in the art will fall within the scope defined by the appended claims.

[0014] like Figures 1-3 As shown, this utility model provides a tooling for tensile testing of LNG marine thin-film insulating sheets, including two connecting blocks and two fixing heads 6. The connecting blocks are composed of an adhesive part 2 and an insertion part 3. The adhesive parts 2 and the adhesive surfaces of the insulating sheet sample 1 are both square. The adhesive parts 2 of the two connecting blocks are bonded to both ends of the insulating sheet sample 1 with glue to form an adhesive layer 4. The fixing head 6 is provided with an insertion groove 9 that matches the insertion part 3. The insertion groove 9 has an open structure on both sides. The fixing head 6 and the insertion part 3 are respectively provided with matching pins 7 and pin holes 5. The pins 7 pass through the entire fixing head 6 and the insertion part 3. The fixing head 6 is fixedly connected to the insertion part 3 by the pins 7. The fixing head 6 is set on the test shaft 8 of the tensile testing machine. The fixing head 6 and the test shaft 8 of the tensile testing machine are integrally formed.

[0015] In this embodiment, the above-mentioned tooling is used to assist in the tensile test of the insulating board sample 1. The insulating board sample 1 is made into a square structure that matches the bonding surface of the bonding part 2. The specific operation process is as follows:

[0016] First, the adhesive parts 2 of the two connecting blocks are glued to both ends of the insulating board sample 1. Then, the plug parts 3 of the two connecting blocks are respectively inserted into the plug slots 9 of the two fixing heads 6. Then, the pin 7 is used to pass through the pin hole 5 and the entire fixing head 6 to realize the connection between the connecting block and the fixing head 6. Finally, the tensile testing machine is started, and the tensile strength is tested through the two test shafts 8.

[0017] Throughout the test, the insulation board sample 1 was effectively fixed, ensuring its positional stability and improving the stability and accuracy of the tensile test.

[0018] The tensile strength test data is used to determine whether the tensile test of insulating board sample 1 is qualified. Only qualified insulating boards can be used to prepare film-type insulating boards.

Claims

1. A tooling for tensile testing of thin-film insulating sheets for LNG ships, characterized in that, It includes two connecting blocks and two fixing heads. The connecting blocks are composed of an adhesive part and a plug-in part. The adhesive parts of the two connecting blocks are glued to both ends of the insulating board sample. The fixing heads and plug-in parts are respectively provided with matching pins and pin holes. The fixing heads are fixedly connected to the plug-in parts by pins. The fixing heads are set on the test shaft of the tensile testing machine.

2. The tooling for tensile testing of thin-film insulating sheets for LNG ships according to claim 1, characterized in that, Both the adhesive portion and the adhesive surface of the insulating board sample are square.

3. The tooling for tensile testing of thin-film insulating sheets for LNG ships according to claim 1, characterized in that, The fixing head has a plug slot that matches the plug part.

4. The tooling for tensile testing of thin-film insulating sheets for LNG ships according to claim 3, characterized in that, The insertion slot has an opening on both sides.

5. The tooling for tensile testing of thin-film insulating sheets for LNG ships according to claim 1, characterized in that, The fixed head is integrally formed with the test shaft of the tensile testing machine.

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