Auxiliary mechanism for z-direction performance test of high strength steel sheet

Abstract

The utility model relates to auxiliary mechanism for quick high -strength steel plate Z direction performance test, including base, lower chuck, upper chuck, movable support and two for fixing the tensile steel plate sample both ends tensile axle, the tensile axle includes shaft head, shaft tail and fixed groove, the shaft head, shaft tail all are cylindrical structure, and the outer diameter of shaft head is greater than shaft tail, and the fixed groove for fixing steel plate sample is seted up on the shaft head, lower chuck and upper chuck are fixed respectively on base and movable support oppositely, and are used for clamping two tensile axles respectively, and movable support provides the upward tensile force to test the Z direction performance of steel plate sample between two tensile axles, the utility model discloses simple structure, convenient and practical, low in cost, and the test effect is good, need not friction welding, can realize metal material thickness direction tensile test, has good market prospect and development space.

Description

Technical Field

[0001] This utility model relates to the field of inspection technology for high-strength steel plate raw materials for hydraulic supports, and in particular to an auxiliary mechanism for quick Z-axis performance testing of high-strength steel plates. Background Technology

[0002] In recent years, as the mining height of hydraulic supports has increased, the working resistance has also increased, and the requirements for the performance of high-strength steel plates, the raw materials for hydraulic supports, have also increased. In order to improve the resistance of high-strength steel plates to lamellar tearing, there are also requirements for the Z-direction reduction of area of ​​the steel plates. In order to test the Z-direction reduction of area of ​​the steel plates, it is not easy to make tensile test specimens due to the small thickness dimension. Steel mills generally make test specimens by friction welding. However, users do not have friction welding machines, which limits their ability to test the Z-direction performance of high-strength steel plates.

[0003] The current problem to be solved is how to design an auxiliary mechanism for rapid Z-axis performance testing of high-strength steel plates that is simple in structure, convenient and practical, low in cost, and has good test results, without the need for friction welding, to achieve tensile testing in the thickness direction of metallic materials. Utility Model Content

[0004] To address the technical problems of operational difficulties, lack of relevant testing equipment, and poor test results in the Z-direction reduction rate test of high-strength steel plates using existing hydraulic supports, this utility model provides a quick auxiliary mechanism for testing the Z-direction performance of high-strength steel plates. This mechanism is simple in structure, convenient and practical, low in cost, and provides good test results. It can achieve the purpose of tensile testing of metal materials in the thickness direction without friction welding.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is: an auxiliary mechanism for quick high-strength steel plate Z-axis performance testing, including a base, a lower clamp, an upper clamp, a movable support, and two tensile shafts for fixing the two ends of the tensile steel plate sample. The tensile shaft includes a shaft head, a shaft tail, and a fixing groove. The shaft head and shaft tail are both cylindrical structures, with the outer diameter of the shaft head being larger than that of the shaft tail. A fixing groove for fixing the steel plate sample is provided on the shaft head. The lower clamp and the upper clamp are respectively fixed relative to the base and the movable support, and are respectively used to clamp the upper and lower tensile shafts. The movable support provides an upward pulling force to test the Z-axis performance of the steel plate sample located between the two tensile shafts.

[0006] As a further optimization of the auxiliary mechanism for the aforementioned quick high-strength steel plate Z-axis performance test, the steel plate sample is an I-shaped structure with external threads on the outer edge of the steel plate sample, and internal threads matching the external threads of the steel plate sample are provided on the inner wall of the fixing groove. The upper and lower ends of the steel plate sample are tightly fixed by the upper and lower tension shafts through threads.

[0007] Compared with the prior art, the beneficial effects of this utility model are: I. This utility model includes a base, a lower clamp, an upper clamp, a movable support, and two tension shafts for fixing the two ends of a tensile steel plate sample. The lower clamp and the upper clamp are respectively fixed on the base and the movable support, and are used to clamp the upper and lower tension shafts respectively. The movable support provides an upward pulling force to test the Z-direction performance of the steel plate sample located between the two tension shafts.

[0008] Second, this utility model has a simple structure, is convenient and practical, has low cost, and has good test results. It can realize tensile testing of metal materials in the thickness direction without friction welding. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a schematic diagram of the cross-sectional structure of the tension shaft; Figure 3 This is a schematic diagram of the steel plate sample structure; Figure 4 This is a schematic diagram showing the connection between the tension shaft and the steel plate sample; The markings in the diagram are: 1. Base, 2. Lower chuck, 3. Upper chuck, 4. Movable support, 5. Steel plate sample, 6. Tensioning shaft, 601. Shaft head, 602. Shaft tail, 603. Fixing groove. Detailed Implementation

[0010] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0011] like Figure 1 , 2 As shown in Figure 3, the auxiliary mechanism for quick high-strength steel plate Z-axis performance testing includes a base 1, a lower clamp 2, an upper clamp 3, a movable support 4, and two tension shafts 6 for fixing the two ends of the tensile steel plate sample 5. The tension shaft 6 includes a shaft head 601, a shaft tail 602, and a fixing groove 603. The shaft head 601 and shaft tail 602 are both cylindrical structures. The outer diameter of the shaft head 601 is larger than that of the shaft tail 602. The shaft head 601 has a fixing groove 603 for fixing the steel plate sample 5. The lower clamp 2 and the upper clamp 3 are respectively fixed to the base 1 and the movable support 4, and are used to clamp the upper and lower tension shafts 6 respectively. The movable support 4 provides an upward pulling force to test the Z-axis performance of the steel plate sample 5 located between the two tension shafts 6.

[0012] The steel plate sample 5 has an I-shaped structure. The outer edge of the steel plate sample 5 is provided with external threads. The inner wall of the fixing groove 603 is provided with internal threads that match the external threads of the steel plate sample 5. The upper and lower ends of the steel plate sample 5 are tightly fixed by the upper and lower tension shafts 6 through threads.

[0013] like Figure 1 As shown, Figure 1 This is a schematic diagram of the main structure of this utility model. In use, the steel plate sample 5 is first processed into an I-shaped structure, and then an external thread matching the internal thread of the fixing groove 603 is machined on the outer edge of the steel plate sample 5. Then, the upper and lower ends of the steel plate sample 5 are respectively connected to the tensile shaft 6 through internal and external threads to form a tensile sample. Then, the two tensile shafts 6 are respectively fixed on the lower clamp 2 and the upper clamp 3. The tensile testing machine is started, and the movable support 4 provides an upward pulling force to test the Z-direction performance of the steel plate sample 5 located between the two tensile shafts 6. The sample is broken on the tensile testing machine to obtain the reduction of area data.

[0014] This utility model has a simple structure, is convenient and practical, has low cost, and good test results. It can realize the tensile test in the thickness direction of metal materials without friction welding. It solves the technical problems of operation difficulties, lack of relevant test equipment, and poor test results in the Z-direction section reduction rate test of high-strength steel plates of existing hydraulic supports. It has a good market prospect and development space.

[0015] The preferred embodiments and examples of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments and examples. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the concept of the present invention.

Claims

1. An auxiliary mechanism for quick testing of the Z-axis performance of high-strength steel plates, characterized in that: The system includes a base (1), a lower clamp (2), an upper clamp (3), a movable support (4), and two tension shafts (6) for fixing the two ends of a tensile steel plate specimen (5). The tension shaft (6) includes a shaft head (601), a shaft tail (602), and a fixing groove (603). The shaft head (601) and shaft tail (602) are both cylindrical structures. The outer diameter of the shaft head (601) is larger than that of the shaft tail (602). The shaft head (601) has a fixing groove (603) for fixing the steel plate specimen (5). The lower clamp (2) and the upper clamp (3) are respectively fixed on the base (1) and the movable support (4), and are used to clamp the upper and lower tension shafts (6). The movable support (4) provides an upward pulling force to test the Z-direction performance of the steel plate specimen (5) located between the two tension shafts (6).

2. The auxiliary mechanism for quick high-strength steel plate Z-axis performance testing as described in claim 1, characterized in that: The steel plate sample (5) has an I-shaped structure. The outer edge of the steel plate sample (5) is provided with an external thread. The inner wall of the fixing groove (603) is provided with an internal thread that matches the external thread of the steel plate sample (5). The upper and lower ends of the steel plate sample (5) are tightly fixed by the upper and lower tension shafts (6) through the threads.

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