Hydrogen embrittlement test tool

Abstract

The utility model relates to the technical field of test tools, in particular to a hydrogen embrittlement test tool, which comprises a mounting plate, a first clamping structure, arc-shaped blocks, loop bars, bolts and threaded holes, a plurality of groups of bolts are in threaded connection on a fixed cylinder, one end of each bolt is fixedly connected on the arc-shaped blocks, each group of arc-shaped blocks corresponds to one group of bolts, and the threaded holes are formed in the arc-shaped blocks. When the bolt is screwed in the forward direction, the distance between the arc-shaped blocks can be shortened, when the bolt is screwed in the reverse direction, the distance between the arc-shaped blocks can be enlarged, the device can effectively adapt to various test materials of different specifications and sizes, the materials do not need to be machined to control the sizes of the materials before testing, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of test tooling, in particular to a hydrogen embrittlement test tooling. Background Art

[0002] Hydrogen embrittlement refers to the severe degradation of mechanical properties and brittle fracture of metal materials due to hydrogen absorption or permeation during smelting, processing, heat treatment, pickling, and electroplating, or during long-term use in hydrogen-containing media. A tool was designed to test whether fasteners will experience hydrogen embrittlement fracture after being subjected to a certain load for at least 48 hours.

[0003] Although traditional hydrogen embrittlement test fixtures can assist in detecting whether fasteners will undergo hydrogen embrittlement fracture after being subjected to a certain load for at least 48 hours, the fixtures of current hydrogen embrittlement test fixtures mostly use threaded fixings. Although this method can fix the test material, it requires the preparation of corresponding test materials of corresponding sizes in advance according to the model of its fixings. It cannot adapt to a variety of materials of different sizes and specifications. If multiple different types of materials need to be tested at one time, it will take a lot of time to control the size of the materials, which greatly affects work efficiency. Utility Model Content

[0004] In order to solve the problems existing in the background technology, the utility model provides a hydrogen embrittlement test tool with the function of adapting to test materials of different sizes and specifications.

[0005] In view of the problems in the prior art, the utility model provides a hydrogen embrittlement test fixture, including a mounting plate;

[0006] A fixed cylinder, the fixed cylinder being fixedly mounted on the mounting plate;

[0007] An axial force sensor is mounted on the fixed cylinder;

[0008] a gasket, the gasket being mounted on top of the axial force sensor;

[0009] A skateboard is provided with a second clamping structure at the bottom thereof, wherein the axial center lines of the second clamping structure, the gasket, the axial force sensor and the fixing cylinder coincide with each other.

[0010] Specifically, the fixing cylinder is an internally threaded fixing cylinder.

[0011] Specifically, a group of first clamping structures are fixedly installed inside the fixed cylinder, and the first clamping structure includes arc blocks, sleeve rods, and bolts. One side of each group of arc blocks is fixedly connected to one end of a group of bolts, and there is a gap between the arc blocks and the fixed cylinder.

[0012] Specifically, the movable end of the sleeve rod is fixedly connected to one side of the arc block, and the other end of the sleeve rod is fixedly connected to the inner wall of the fixed cylinder. Every two groups of the sleeve rods correspond to one group of arc blocks. The two groups of the sleeve rods are located on the upper and lower sides of the bolts, and each group of the bolts are threadedly connected in the threaded hole.

[0013] Specifically, the fixing cylinder is provided with a plurality of groups of threaded holes, and each group of threaded holes corresponds to a group of bolts.

[0014] Specifically, a set of lifting structures is fixedly installed on the mounting plate, and the lifting structure includes a support plate, a slide groove, a motor, a slide plate and a threaded rod. Two sets of support plates are fixedly installed on the mounting plate, and the two sets of support plates are located on both sides of the fixed cylinder.

[0015] Specifically, a group of sliding grooves are opened on the support plate, one end of the slide is slidably connected inside the sliding grooves, and the other end of the slide is slidably connected to another group of sliding grooves. A group of motors are fixedly installed on the top of the support plate, and the output shaft of the motor is fixedly connected to one end of the threaded rod, and the other end of the threaded rod is rotatably connected to the mounting plate, and the slide is threadedly connected to the threaded rod.

[0016] The beneficial effects of the utility model are as follows: a hydrogen embrittlement test fixture of the utility model has multiple groups of bolts threadedly connected to the fixed cylinder, and one end of the bolt is fixedly connected to the arc block, each group of arc blocks corresponds to a group of bolts, when the bolts are turned in the positive direction, the distance between the multiple groups of arc blocks can be shortened, and when they are turned in the reverse direction, the distance between the multiple groups of arc blocks will be expanded, so that it can effectively adapt to a variety of test materials of different specifications and sizes, and there is no need to process the materials to control the size of the materials before the test, which greatly improves the work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 This is a schematic diagram of the overall structure of the implementation of the present utility model;

[0019] Figure 2 This is a front view of an overall structure of the present utility model;

[0020] Figure 3 This is an exploded view of the connection structure of the internal parts of the clamping structure in accordance with the present invention;

[0021] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0022] Figure 5 This is a schematic diagram of the second embodiment of the present utility model.

[0023] In the figure: 1. Mounting plate; 110. Fixing cylinder; 111. Threaded hole; 2. Lifting structure; 210. Support plate; 211. Slide groove; 212. Motor; 213. Slide plate; 214. Threaded rod; 3. First clamping structure; 310. Arc block; 311. Sleeve rod; 312. Bolt; 4. Axial force sensor; 410. Gasket; 5. Second clamping structure. DETAILED DESCRIPTION

[0024] In order to make the technical methods, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0025] Example 1:

[0026] like Figure 1-5 The hydrogen embrittlement test fixture shown includes a mounting plate, the fixed cylinder 110 is fixedly mounted on the mounting plate 1, the axial force sensor 4 is mounted on the fixed cylinder 110, the gasket 410 is mounted on the top of the axial force sensor 4, and the second clamping structure 5 is fixedly mounted on the bottom of the slide 213. The second clamping structure 5 and the first clamping structure 3 are symmetrical to each other.

[0027] Preferably, a group of first clamping structures 3 is fixedly installed inside the fixed cylinder 110, and the first clamping structure 3 includes an arc block 310, a sleeve rod 311, and a bolt 312. One side of each group of the arc blocks 310 is fixedly connected to one end of a group of bolts 312. There is a gap between the arc block 310 and the fixed cylinder 110. The movable end of the sleeve rod 311 is fixedly connected to one side of the arc block 310, and the other end of the sleeve rod 311 is fixedly connected to the inner wall of the fixed cylinder 110. Every two groups of the sleeve rods 311 correspond to one group of arc blocks 310. The two groups of the sleeve rods 311 are located on the upper and lower sides of the bolts 312, and each group of the bolts 312 are threadedly connected to the threaded holes 111.

[0028] The fixing cylinder 110 is provided with multiple groups of threaded holes 111, each group of threaded holes 111 corresponds to a group of bolts 312, and a group of lifting structures 2 is fixedly installed on the mounting plate 1, and the lifting structure 2 includes a support plate 210, a slide groove 211, a motor 212, a slide plate 213 and a threaded rod 214. Two groups of support plates 210 are fixedly installed on the mounting plate 1, and the two groups of support plates 210 are located on both sides of the fixing cylinder 110. A group of slide grooves 211 are provided on the support plate 210, and one end of the slide plate 213 is slidably connected to the inside of the slide groove 211, and the other end of the slide plate 213 is slidably connected to the other group of slide grooves 211. A group of motors 212 is fixedly installed on the top of the support plate 210, and the output shaft of the motor 212 is fixedly connected to one end of the threaded rod 214, and the other end of the threaded rod 214 is rotatably connected to the mounting plate 1, and the slide plate 213 is threadedly connected to the threaded rod 214.

[0029] Example 2:

[0030] like Figure 1 、 2 As shown in Figure 5, a hydrogen embrittlement test fixture includes a mounting plate, the fixed cylinder 110 is fixedly mounted on the mounting plate 1, the axial force sensor 4 is mounted on the fixed cylinder 110, the gasket 410 is mounted on the top of the axial force sensor 4, the second clamping structure 5 is fixedly mounted on the bottom of the skateboard 213, the skateboard 213, and the bottom of the skateboard 213 is equipped with a second clamping structure 5, the axial center lines of the second clamping structure 5, the gasket 410, the axial force sensor 4, and the fixed cylinder 110 coincide, and the fixed cylinder 110 is an internally threaded fixed cylinder.

[0031] (1) According to Figure 1 As shown, after fixing one end of the test material, the other end can be fixed inside the second clamping structure 5. After the material is fixed, the motor 212 can be started. At this time, the motor 212 will drive the threaded rod 214 to rotate, and the two ends of the slide 213 threadedly connected to the threaded rod 214 are slidably connected inside the slide groove 211. Therefore, when the threaded rod 214 rotates, the slide 213 will slide in the slide groove 211, thereby driving the second clamping structure 5 to move, and the test material is tested. The specified load is reset every 24 hours, and the test material is checked after 48 hours to see if hydrogen embrittlement fracture occurs.

[0032] (2) After placing one end of the material to be tested into the fixed cylinder 110, simultaneously tighten the two sets of opposite bolts 312. When the arc block 310 corresponding to the two sets of bolts 312 squeezes the side wall of the test material, start to tighten the other two sets of bolts 312 simultaneously. In this way, the test material can be clamped and can adapt to test materials of different sizes and specifications. It can also ensure that the test material is in the center of the equipment, effectively preventing its position from shifting, thereby causing unstable clamping.

[0033] Working principle: First, place one end of the material to be tested into the fixed cylinder 110, and then simultaneously screw the two sets of opposite bolts 312. When one side of the arc block 310 corresponding to the two sets of bolts 312 squeezes the side wall of the test material, start to screw the other two sets of bolts 312 at the same time. In this way, the test material can be clamped, and it can adapt to test materials of different sizes and specifications, and can ensure that the test material is in the center of the equipment, effectively preventing its position from shifting, thereby causing unstable clamping. There is also a set of second clamping structures 5 above the first clamping structure 3. The second clamping structure 5 and the first clamping structure The structure and principle of structure 3 are the same. After fixing one end of the test material, the other end can be fixed inside the second clamping structure 5. After completing the fixation of the material, the motor 212 can be started. At this time, the motor 212 will drive the threaded rod 214 to rotate, and the two ends of the slide 213 threadedly connected to the threaded rod 214 are slidably connected inside the slide groove 211. Therefore, when the threaded rod 214 rotates, the slide 213 will slide in the slide groove 211, thereby driving the second clamping structure 5 to move, and test the test material. The specified load is reset every 24 hours, and the test material is checked for hydrogen embrittlement fracture after 48 hours.

[0034] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of protection claimed by the present invention.

Claims

1. A hydrogen embrittlement test tool, characterized by: including a mounting plate (1); A fixed cylinder (110), wherein the fixed cylinder (110) is fixedly mounted on the mounting plate (1); an axial force sensor (4), the axial force sensor (4) being mounted on the fixed cylinder (110); a gasket (410), the gasket (410) being mounted on top of the axial force sensor (4); A slide plate (213) is provided with a second clamping structure (5) installed at the bottom of the slide plate (213), and the axial center lines of the second clamping structure (5), the gasket (410), the axial force sensor (4), and the fixing cylinder (110) coincide with each other.

2. A hydrogen embrittlement test fixture according to claim 1, characterized in that: The fixing cylinder (110) is an internally threaded fixing cylinder.

3. A hydrogen embrittlement test fixture according to claim 1, characterized in that: A group of first clamping structures (3) is fixedly installed inside the fixed cylinder (110), and the first clamping structure (3) includes an arc block (310), a sleeve rod (311), and a bolt (312). One side of each group of the arc blocks (310) is fixedly connected to one end of a group of bolts (312), and a gap exists between the arc blocks (310) and the fixed cylinder (110).

4. A hydrogen embrittlement test fixture according to claim 3, characterized in that: The movable end of the sleeve rod (311) is fixedly connected to one side of the arc block (310), and the other end of the sleeve rod (311) is fixedly connected to the inner wall of the fixed cylinder (110). Every two groups of the sleeve rods (311) correspond to one group of arc blocks (310). The two groups of the sleeve rods (311) are located on the upper and lower sides of the bolts (312), and each group of the bolts (312) is threadedly connected to the threaded hole (111).

5. The hydrogen embrittlement test tool according to claim 3, characterized in that: The fixing cylinder (110) is provided with a plurality of groups of threaded holes (111), and each group of threaded holes (111) corresponds to a group of bolts (312).

6. The hydrogen embrittlement test fixture according to claim 1, characterized in that: A set of lifting structures (2) is fixedly mounted on the mounting plate (1), wherein the lifting structure (2) comprises a support plate (210), a slide groove (211), a motor (212), a slide plate (213) and a threaded rod (214); two sets of support plates (210) are fixedly mounted on the mounting plate (1), and the two sets of support plates (210) are located on both sides of the fixed cylinder (110).

7. The hydrogen embrittlement test fixture according to claim 5, characterized in that: A group of slide grooves (211) are provided on the support plate (210), one end of the slide plate (213) is slidably connected inside the slide grooves (211), and the other end of the slide plate (213) is slidably connected inside another group of slide grooves (211).

8. A hydrogen embrittlement test fixture according to claim 7, characterized in that: A group of motors (212) are fixedly mounted on the top of the support plate (210); the output shaft of the motor (212) is fixedly connected to one end of a threaded rod (214); the other end of the threaded rod (214) is rotatably connected to the mounting plate (1); and a slide plate (213) is threadedly connected to the threaded rod (214).

Images