A horizontal fatigue testing machine

Abstract

The utility model relates to the technical field of material fatigue testing machines, and discloses a horizontal fatigue testing machine, including: a base, and limit slots are provided on both the left and right sides of the top of the base. The utility model sets a first clamping block, a second clamping block, an elliptical block and a driving motor. When the two driving motors are running at the same time, the two rotating shafts will respectively drive the two elliptical blocks to rotate. Due to the shape design of the two elliptical blocks, when the two elliptical blocks rotate, their outer surfaces will simultaneously squeeze and push the tops of the two second clamping blocks. Subsequently, the two second clamping blocks will move downward along the outer surface of the limit rod under the squeezing of the outer surfaces of the two elliptical blocks. At this time, the materials located at the tops of the two first clamping blocks will be clamped and fixed during the downward movement of the two second clamping blocks, thereby realizing the function of automatically clamping materials of different sizes and specifications, and facilitating the operation of operators.

Description

Technical Field

[0001] The utility model relates to the technical field of material fatigue testing machines, and more specifically, to a horizontal fatigue testing machine. Background Art

[0002] Material fatigue is a phenomenon in which a structure fails under cyclic loading. This type of structural damage may occur even if the stress on the material is far lower than the static strength of the material. Fatigue is the most common cause of failure of mechanical structures.

[0003] When conducting research and testing on materials, operators often use horizontal fatigue testing machines, so that fatigue measurements can be made on different materials. In actual use, although the existing horizontal fatigue testing machines can measure the fatigue characteristics, fatigue life, pre-cracks and crack propagation tests of materials under tension, compression or tension-compression alternating loads at room temperature, when testing materials of different sizes, it is often necessary to replace fixtures of corresponding sizes to complete fatigue tests. This requires operators to frequently replace fixtures, which increases their workload. In addition, due to the large number of fixtures, the test cost is increased, which brings inconvenience to the operators' operations. Therefore, improvements are needed. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a horizontal fatigue testing machine, which has the advantage of being able to automatically clamp materials of different sizes and specifications.

[0005] To achieve the above purpose, the utility model provides the following technical solutions: a horizontal fatigue testing machine, comprising:

[0006] A base, wherein both left and right sides of the top of the base are provided with limiting grooves;

[0007] A driving mechanism, the driving mechanism is arranged on the left and right sides of the top of the base;

[0008] A clamping mechanism, wherein the clamping mechanism is arranged at the top of the base;

[0009] In which, the clamping mechanism includes a first clamping block, the number of the first clamping blocks is two, the bottom ends of the two first clamping blocks are movably connected to the top end of the base, the front and rear sides of the top ends of the two first clamping blocks are fixedly installed with limiting rods, the top end of the outer surface of the limiting rod is movably sleeved with a second clamping block, the outer surface of the limiting rod is movably sleeved with a spring, the bottom end of the spring is fixedly connected to the top end of the first clamping block, the top end of the spring is fixedly connected to the bottom end of the second clamping block, the top end of the second clamping block is movably connected to an elliptical block, and the rotation of the elliptical block causes the second clamping block to move downward along the outer surface of the limiting rod.

[0010] As a preferred technical solution of the utility model, the driving mechanism includes:

[0011] Vertical plates, the number of which is two, the bottom ends of the two vertical plates are movably connected to the top of the base, and the bottom ends of the two vertical plates facing each other are fixedly connected to the outer surfaces of the opposite ends of the two first clamping blocks respectively;

[0012] The driving motors are two in number, and the outer surfaces of the two driving motors facing each other are fixedly connected to the outer surfaces of the two vertical plates facing away from each other respectively. The other ends of the output shafts of the two driving motors are fixedly sleeved with rotating shafts, and the other ends of the rotating shafts penetrate the outer surfaces of the vertical plates and extend to the top of the second clamping block, and the outer surface of the other end of the rotating shaft is fixedly sleeved with the interior of the elliptical block.

[0013] As a preferred technical solution of the utility model, a fixing plate is fixedly installed at the bottom end of the base, a power motor is fixedly installed at the top end of the right side of the fixing plate, a rotating shaft is fixedly sleeved on the other end of the output shaft of the power motor, and the other end of the rotating shaft passes through the right side of the fixing plate and extends to the left side of the fixing plate.

[0014] As a preferred technical solution of the utility model, the outer surface of the other end of the rotating shaft is fixedly sleeved with a gear, the outer surface of the gear is meshingly connected with a toothed plate, the back of the toothed plate is fixedly installed with a fixed block, the outer surface of the fixed block is movably connected to a limiting block, and the top and bottom ends of the limiting block are both fixedly connected to the inside of the base.

[0015] As a preferred technical solution of the utility model, a round rod is fixedly sleeved inside the front of the base, the other end of the round rod extends to the inside of the base, and a rotating rod is movably sleeved on the outer surface of the other end of the round rod, and the outer surface of the rotating rod is meshingly connected with the outer surface of the tooth plate.

[0016] As a preferred technical solution of the utility model, the other end of the rotating rod is internally fixedly sleeved with an extrusion shaft, the outer surface of the other end of the extrusion shaft is movably connected with a moving block, and the top of the moving block is movably connected to the top inside the base.

[0017] As a preferred technical solution of the utility model, a square block is fixedly installed on the top of the moving block, the top of the square block extends to the top of the base through a limiting groove, and the top of the square block is fixedly connected to the bottom end of the first clamping block.

[0018] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0019] 1. The utility model is provided with a first clamping block, a second clamping block, an elliptical block and a driving motor. When the two driving motors are running at the same time, the two rotating shafts will respectively drive the two elliptical blocks to rotate. Due to the shape design of the two elliptical blocks, when the two elliptical blocks rotate, their outer surfaces will simultaneously squeeze and push the top ends of the two second clamping blocks. Subsequently, the two second clamping blocks will move downward along the outer surface of the limit rod under the squeezing of the outer surfaces of the two elliptical blocks. At this time, the materials located at the top ends of the two first clamping blocks will be clamped and fixed during the downward movement of the two second clamping blocks, thereby realizing the function of automatically clamping materials of different sizes and specifications, and facilitating the operation of operators.

[0020] 2. The utility model sets gears, toothed plates, rotating rods and moving blocks. When the power motor is running, the rotating shaft will drive the gears to rotate. At this time, the toothed plate and the fixed block will move under the drive of the gears. Due to the design of the limit block, the toothed plate and the fixed block will move upward under the limit of the limit block. Then the toothed plate will drive the two extrusion shafts to rotate in opposite directions with the two round rods as the axis through the two rotating rods. At this time, the outer surfaces of the two extrusion shafts will simultaneously squeeze and push the inside of the two moving blocks to make the two moving blocks move. At this time, the two moving blocks will drive the two first clamping blocks to move through the two square blocks. Due to the limiting effect of the two limit grooves, the two square blocks will drive the two first clamping blocks to move in opposite directions, thereby realizing the function of facilitating the tensile fatigue test of the material. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the utility model;

[0022] Figure 2 It is a schematic diagram of the back structure of the utility model;

[0023] Figure 3 It is a cross-sectional structural schematic diagram of the utility model;

[0024] Figure 4 It is a cross-sectional structural schematic diagram of the drive motor of the utility model;

[0025] Figure 5 This is a schematic cross-sectional view of the power motor of the utility model;

[0026] Figure 6 for Figure 5 Schematic diagram of the local enlarged structure at point A in the middle.

[0027] In the figure: 1. base; 2. limiting groove; 3. first clamping block; 4. limiting rod; 5. second clamping block; 6. spring; 7. elliptical block; 8. vertical plate; 9. driving motor; 10. rotating shaft; 11. fixed plate; 12. power motor; 13. rotating shaft; 14. gear; 15. toothed plate; 16. fixed block; 17. limiting block; 18. round rod; 19. rotating rod; 20. extrusion shaft; 21. moving block; 22. square block. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] like Figures 1 to 6 As shown, the utility model provides a horizontal fatigue testing machine, comprising:

[0030] A base 1, with limit slots 2 provided on both left and right sides of the top of the base 1;

[0031] A driving mechanism, which is arranged on the left and right sides of the top of the base 1;

[0032] A clamping mechanism, which is arranged at the top of the base 1;

[0033] Among them, the clamping mechanism includes a first clamping block 3, the number of the first clamping blocks 3 is two, the bottom ends of the two first clamping blocks 3 are movably connected to the top of the base 1, the front and rear sides of the top of the two first clamping blocks 3 are fixedly installed with limiting rods 4, the top of the outer surface of the limiting rod 4 is movably sleeved with a second clamping block 5, the outer surface of the limiting rod 4 is movably sleeved with a spring 6, the bottom end of the spring 6 is fixedly connected to the top of the first clamping block 3, the top of the spring 6 is fixedly connected to the bottom end of the second clamping block 5, the top of the second clamping block 5 is movably connected with an elliptical block 7, and the rotation of the elliptical block 7 causes the second clamping block 5 to move downward along the outer surface of the limiting rod 4.

[0034] When the elliptical block 7 rotates, due to the design of the shape of the elliptical block 7, the outer surface of the elliptical block 7 will squeeze the top of the second clamping block 5 so that the second clamping block 5 moves downward along the outer surface of the limit rod 4. At this time, the material located at the top of the first clamping block 3 will be clamped and fixed during the downward movement of the second clamping block 5, thereby realizing the function of automatically clamping materials of different sizes and specifications. Due to the elastic force of the spring 6, a good reset effect will be provided for the movement of the second clamping block 5.

[0035] The driving mechanism includes:

[0036] Vertical plates 8, the number of which is two, the bottom ends of the two vertical plates 8 are movably connected to the top of the base 1, and the bottom ends of the two vertical plates 8 facing each other are fixedly connected to the outer surfaces of the opposite ends of the two first clamping blocks 3;

[0037] There are two drive motors 9, and the outer surfaces of the two drive motors 9 facing each other are fixedly connected to the outer surfaces of the two vertical plates 8 facing away from each other. The other ends of the output shafts of the two drive motors 9 are fixedly sleeved with a rotating shaft 10, and the other ends of the rotating shaft 10 penetrate the outer surface of the vertical plate 8 and extend to the top of the second clamping block 5. The outer surface of the other end of the rotating shaft 10 is fixedly sleeved with the interior of the elliptical block 7.

[0038] When the two driving motors 9 are running, the two elliptical blocks 7 will rotate driven by the two rotating shafts 10 .

[0039] Among them, a fixing plate 11 is fixedly installed at the bottom end of the base 1, a power motor 12 is fixedly installed at the top end of the right side of the fixing plate 11, and a rotating shaft 13 is fixedly sleeved on the other end of the output shaft of the power motor 12. The other end of the rotating shaft 13 passes through the right side of the fixing plate 11 and extends to the left side of the fixing plate 11.

[0040] When the power motor 12 is running, the rotating shaft 13 will rotate.

[0041] Among them, the outer surface of the other end of the rotating shaft 13 is fixedly sleeved with a gear 14, the outer surface of the gear 14 is meshingly connected with a toothed plate 15, and a fixed block 16 is fixedly installed on the back of the toothed plate 15. The outer surface of the fixed block 16 is movably connected with a limit block 17, and the top and bottom ends of the limit block 17 are fixedly connected to the inside of the base 1.

[0042] When the rotating shaft 13 drives the gear 14 to rotate, the toothed plate 15 and the fixed block 16 will move under the drive of the gear 14 . Due to the design of the limit block 17 , the toothed plate 15 and the fixed block 16 will move upward under the limit inside the limit block 17 .

[0043] Among them, a round rod 18 is fixedly sleeved inside the front of the base 1, and the other end of the round rod 18 extends into the inside of the base 1. A rotating rod 19 is movably sleeved on the outer surface of the other end of the round rod 18, and the outer surface of the rotating rod 19 is meshed with the outer surface of the toothed plate 15.

[0044] When the tooth plate 15 moves upward, the two rotating rods 19 will be driven by the tooth plate 15 to rotate in opposite directions with the two round rods 18 as the axis.

[0045] The other end of the rotating rod 19 is internally fixedly sleeved with an extrusion shaft 20 , and the outer surface of the other end of the extrusion shaft 20 is movably connected with a moving block 21 , and the top end of the moving block 21 is movably connected to the top end inside the base 1 .

[0046] When the two rotating rods 19 rotate in opposite directions, the two extrusion shafts 20 will rotate in opposite directions driven by the two rotating rods 19 , and the two moving blocks 21 will move under the extrusion and pushing of the two extrusion shafts 20 .

[0047] Among them, a square block 22 is fixedly installed on the top of the moving block 21, and the top of the square block 22 extends to the top of the base 1 through the limiting groove 2, and the top of the square block 22 is fixedly connected to the bottom end of the first clamping block 3.

[0048] When the two moving blocks 21 move, the two square blocks 22 will move driven by the two moving blocks 21, and then the two square blocks 22 will drive the two first clamping blocks 3 to move. Due to the design of the two limit grooves 2, the two square blocks 22 will drive the two first clamping blocks 3 as a whole to move away from each other under the limit of the two limit grooves 2, thereby realizing the function of facilitating the tensile fatigue test of the material.

[0049] The working principle and use process of this utility model:

[0050] First, the operator places the material on the top of the two first clamping blocks 3. At this time, the operator starts the two driving motors 9 at the same time. At this time, the two rotating shafts 10 will drive the two elliptical blocks 7 to rotate respectively. Since the two elliptical blocks 7 are elliptical in shape, the outer surfaces of the two elliptical blocks 7 will simultaneously squeeze and push the tops of the two second clamping blocks 5 to make them move. Due to the design of the four limit rods 4, the two second clamping blocks 5 will move downward along the outer surfaces of the four limit rods 4 under the limit of the four limit rods 4. At this time, the material located at the top of the two first clamping blocks 3 will be clamped and fixed during the downward movement of the two second clamping blocks 5, thereby realizing the function of automatically clamping materials of different sizes. Due to the elastic force of the four springs 6, a good reset effect will be provided for the movement of the two second clamping blocks 5.

[0051] Then the operator starts the power motor 12, and the rotating shaft 13 will drive the gear 14 to rotate. At this time, the toothed plate 15 will move under the drive of the gear 14, and at the same time, the toothed plate 15 will drive the fixed block 16 to move. Due to the design of the limit block 17, the toothed plate 15 and the fixed block 16 will move upward under the limit of the limit block 17. Then, the two rotating rods 19 will rotate in opposite directions with the two round rods 18 as the axis under the drive of the toothed plate 15, and then the two extrusion shafts 20 will rotate in opposite directions under the drive of the two rotating rods 19. At this time, the outer surfaces of the two extrusion shafts 20 will simultaneously squeeze and push the inside of the two moving blocks 21 to make the two moving blocks 21 move. At the same time, the two moving blocks 21 will drive the two first clamping blocks 3 to move through the two square blocks 22. Due to the design of the two limit grooves 2, the two square blocks 22 will drive the two first clamping blocks 3 to move away from each other under the limit of the two limit grooves 2, thereby realizing the function of facilitating the tensile fatigue test of the material.

[0052] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0053] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A horizontal fatigue testing machine, characterized in that: Included are: A base (1), wherein both left and right sides of the top of the base (1) are provided with limiting grooves (2); A driving mechanism, the driving mechanism being arranged on the left and right sides of the top of the base (1); A clamping mechanism, the clamping mechanism being arranged at the top end of the base (1); The clamping mechanism comprises a first clamping block (3), the number of the first clamping blocks (3) is two, the bottom ends of the two first clamping blocks (3) are movably connected to the top end of the base (1), the front and rear sides of the top ends of the two first clamping blocks (3) are fixedly installed with limiting rods (4), the top end of the outer surface of the limiting rod (4) is movably sleeved with a second clamping block (5), the outer surface of the limiting rod (4) is movably sleeved with a spring (6), the bottom end of the spring (6) is fixedly connected to the top end of the first clamping block (3), the top end of the spring (6) is fixedly connected to the bottom end of the second clamping block (5), the top end of the second clamping block (5) is movably connected with an elliptical block (7), and the elliptical block (7) rotates so that the second clamping block (5) moves downward along the outer surface of the limiting rod (4).

2. A horizontal fatigue testing machine according to claim 1, characterized in that: The driving mechanism comprises: A vertical plate (8), wherein the number of the vertical plates (8) is two, the bottom ends of the two vertical plates (8) are movably connected to the top end of the base (1), and the bottom ends of the two vertical plates (8) facing each other are respectively fixedly connected to the outer surfaces of the opposite ends of the two first clamping blocks (3); A driving motor (9), wherein the number of the driving motors (9) is two, the outer surfaces of the two driving motors (9) facing each other are respectively fixedly connected to the outer surfaces of the two vertical plates (8) facing away from each other, the other ends of the output shafts of the two driving motors (9) are fixedly sleeved with a rotating shaft (10), the other ends of the rotating shaft (10) penetrate the outer surface of the vertical plate (8) and extend to the top of the second clamping block (5), and the outer surface of the other end of the rotating shaft (10) is fixedly sleeved with the inside of the elliptical block (7).

3. A horizontal fatigue testing machine according to claim 1, characterized in that: A fixing plate (11) is fixedly mounted at the bottom end of the base (1), a power motor (12) is fixedly mounted at the top end of the right side of the fixing plate (11), a rotating shaft (13) is fixedly sleeved at the other end of the output shaft of the power motor (12), and the other end of the rotating shaft (13) passes through the right side of the fixing plate (11) and extends to the left side of the fixing plate (11).

4. A horizontal fatigue testing machine according to claim 3, characterized in that: A gear (14) is fixedly sleeved on the outer surface of the other end of the rotating shaft (13); a toothed plate (15) is meshedly connected to the outer surface of the gear (14); a fixed block (16) is fixedly installed on the back of the toothed plate (15); a limit block (17) is movably connected to the outer surface of the fixed block (16); and the top and bottom ends of the limit block (17) are fixedly connected to the inside of the base (1).

5. The horizontal fatigue testing machine according to claim 1, characterized in that: A round rod (18) is fixedly sleeved inside the front of the base (1), and the other end of the round rod (18) extends into the interior of the base (1). A rotating rod (19) is movably sleeved on the outer surface of the other end of the round rod (18), and the outer surface of the rotating rod (19) is meshingly connected with the outer surface of the toothed plate (15).

6. A horizontal fatigue testing machine according to claim 5, characterized in that: The other end of the rotating rod (19) is internally fixedly sleeved with an extrusion shaft (20), the outer surface of the other end of the extrusion shaft (20) is movably connected with a moving block (21), and the top end of the moving block (21) is movably connected to the top end inside the base (1).

7. A horizontal fatigue testing machine according to claim 6, characterized in that: A square block (22) is fixedly mounted on the top of the moving block (21); the top of the square block (22) extends to the top of the base (1) through a limiting groove (2); and the top of the square block (22) is fixedly connected to the bottom of the first clamping block (3).

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