High-temperature tensile creep testing machine

Abstract

The utility model relates to the technical field of material detection, in particular to a high-temperature tensile creep testing machine which not only can be used for tensile creep detection, but also can be used for bending detection, and is convenient to use, low in limitation and high in practicability. Comprising a baseplate; the device further comprises a supporting plate, a servo motor, a rotating shaft, a three-jaw chuck A, a stretching mechanism, a pressing mechanism and a moving mechanism, the supporting plate is installed on the moving mechanism, the moving mechanism is used for moving the supporting plate left and right, the servo motor is fixedly installed on the supporting plate, the rotating shaft is rotatably installed on the supporting plate, and the left end of the rotating shaft is connected with the servo motor; the three-jaw chuck A is fixedly installed at the right end of the rotating shaft, the stretching mechanism is installed on the bottom plate and has a stretching function, and the downward pressing mechanism is installed on the bottom plate and has a downward pressing function.

Description

Technical Field

[0001] The utility model relates to the technical field of material detection, in particular to a high-temperature tensile creep testing machine. Background Art

[0002] A tensile testing machine is a device used to perform tensile testing on materials and is widely used in the field of material testing. In the prior art, a utility model patent with patent application number 201620569746.9 discloses a tensile testing machine, which is mainly composed of a machine body, a cylinder, a connecting rod, and two sets of chucks. When performing a tensile test on steel, the two ends of the steel are clamped and fixed by the two sets of chucks, and then one of the chucks is pulled by the cylinder to stretch the steel. The inventor believes that there are the following problems during use: when testing the strength of steel, not only the tensile test but also the bending strength test of the steel is required. The device in the above-mentioned prior art can only perform tensile testing on steel. Therefore, after the tensile test of the steel is completed, the steel needs to be transferred to the bending test mechanism for bending testing, which is inconvenient to use and has high limitations. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a high-temperature tensile creep testing machine which can perform not only tensile testing but also bending testing, is easy to use, has few limitations and is highly practical.

[0004] The high-temperature tensile creep testing machine of the utility model comprises a base plate; a support plate, a servo motor, a rotating shaft, a three-jaw chuck A, a stretching mechanism, a pressing mechanism and a moving mechanism. The support plate is mounted on the moving mechanism, and the moving mechanism is used to move the support plate left and right. The servo motor is fixedly mounted on the support plate, the rotating shaft is rotatably mounted on the support plate, the left end of the rotating shaft is connected to the servo motor, the three-jaw chuck A is fixedly mounted on the right end of the rotating shaft, the stretching mechanism is mounted on the base plate, and the stretching mechanism has a stretching function. The pressing mechanism is mounted on the base plate, and the pressing mechanism has a pressing function. When testing steel During tensile and bending tests, first clamp the left end of the steel with the three-jaw chuck A, then pull the right part of the steel through the tensile mechanism to test the tensile properties of the steel, then release the tensile mechanism, and then use the moving mechanism to drive the support plate to move the rotating shaft to the left. The rotating shaft moves the steel to the left to the bottom of the pressing mechanism through the three-jaw chuck A, and then press the right part of the steel down through the pressing mechanism to bend the steel, and then test the bending properties of the steel. It can perform not only tensile tests but also bending tests. It is easy to use, has few limitations, and is highly practical.

[0005] Preferably, the stretching mechanism includes a track, a sliding block, a support plate, a rotating shaft, a three-jaw chuck B, a hydraulic cylinder, a moving rod and a tension sensor, the track is fixedly mounted on the right part of the upper end of the base plate, the sliding block is slidably mounted on the track left and right, the support plate is fixedly mounted on the upper end of the sliding block, the rotating shaft is rotatably mounted on the support plate, the rotating shaft is coaxial with the rotating shaft, the three-jaw chuck B is fixedly mounted on the left end of the rotating shaft, the hydraulic cylinder is fixedly mounted on the base plate, and a moving rod is provided at the output end of the hydraulic cylinder, the moving rod is provided with a tension sensor, and the tension sensor is fixedly mounted on the support plate; when the steel is subjected to a tensile test, the left and right parts of the steel are clamped and fixed by the three-jaw chuck A and the three-jaw chuck B respectively, and then the hydraulic cylinder is used to drive the moving rod to move the tension sensor and the support plate to the right, so that the rotating shaft and the three-jaw chuck B apply a rightward tension to the steel until the tension value displayed on the tension sensor reaches a specified value, and the staff records the time, so that the steel is stretched at the specified tension for a certain time, and the deformation of the steel can be observed to infer the tensile creep performance of the steel.

[0006] Preferably, the moving mechanism includes an electric slide rail and a sliding plate, the electric slide rail is fixedly mounted on the base plate, the sliding plate is mounted on the electric slide rail, the electric slide rail is used to move the sliding plate left and right, and the support plate is fixedly mounted on the upper end of the sliding plate; when performing bending testing on the steel, the three-jaw chuck B is released, and then the sliding plate is moved to the left by the electric slide rail, and the sliding plate drives the three-jaw chuck A and the steel to move to the left through the support plate, until the steel moves to the bottom of the pressing mechanism, and then the steel is pressed down by the pressing mechanism to test the bending performance of the steel; this facilitates the testing of the bending performance of the steel.

[0007] Preferably, the pressing mechanism includes a support frame, a cylinder, a pressure rod and a pressure plate, the support frame is fixedly mounted on the bottom plate, the cylinder is fixedly mounted on the upper end of the support frame, the pressure rod is slid up and down and mounted on the upper part of the support frame, the upper end of the pressure rod is connected to the output end of the cylinder, the pressure plate is fixedly mounted on the lower end of the pressure rod, and a pressure sensor is provided on the pressure rod; when the steel is subjected to a bending test, when the steel moves below the pressure plate, the cylinder is opened, and the cylinder moves the pressure plate downward through the pressure rod until the pressure plate contacts the steel, and then the value on the pressure sensor is observed. After knowing that the pressure reaches the specified value, the bending amount of the steel can be observed; this facilitates the bending detection of the steel.

[0008] Preferably, it also includes a box body, an insulation box and a bracket. The insulation box is fixedly installed on the box body through the bracket. A cavity is provided in the insulation box. Openings communicating with the chamber are provided at both left and right ends of the insulation box. Multiple groups of electric heating lamps are provided in the chamber of the insulation box. When it is necessary to test the tensile properties of steel at high temperatures, the multiple groups of electric heating lamps in the insulation box are turned on, and the servo motor is turned on at the same time. The servo motor drives the three-jaw chuck A to rotate the steel through the rotating shaft, so that the steel is evenly heated and the tensile properties of the steel at high temperatures can be tested.

[0009] Preferably, it also includes a delivery pump, an infusion pipe and a drainage pipe. The delivery pump is installed on the box body, the input end of the delivery pump is connected to the box body, the output end of the delivery pump is connected to the drainage pipe through the infusion pipe, the drainage pipe is fixedly installed on the upper end of the insulation box, and the output end of the drainage pipe is provided with multiple groups of spray pipes, and the multiple groups of spray pipes are all located in the upper part of the insulation box chamber; through the above arrangement, the delivery pump is turned on, and the acid in the box body is sprayed onto the steel through the delivery pump, the infusion pipe and the drainage pipe, so that the steel is in an acidic environment, and the performance of the steel in the acidic environment can be tested, which improves convenience.

[0010] Preferably, the material of the box is stainless steel; through the above setting, the corrosion resistance of the box is improved and the service life of the box is increased.

[0011] Compared with the prior art, the beneficial effects of the present invention are: not only can tensile testing be performed, but also bending testing can be performed, and it is easy to use, has few limitations, and is highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a first axonometric structural diagram of the present invention;

[0013] Figure 2 This is a second axonometric structural diagram of the present invention;

[0014] Figure 3 It is a structural diagram of the pressing mechanism;

[0015] Figure 4 It is a structural diagram of the box, bracket and drain pipe;

[0016] Figure 5 It is a structural diagram of the delivery pump, infusion pipe and discharge pipe.

[0017] Markings in the attached figure: 1. Base plate; 2. Support plate; 3. Servo motor; 4. Rotating shaft; 5. Three-jaw chuck A; 6. Track; 7. Sliding block; 8. Support plate; 9. Rotating shaft; 10. Three-jaw chuck B; 11. Hydraulic cylinder; 12. Moving rod; 13. Tension sensor; 14. Electric slide rail; 15. Sliding plate; 16. Support frame; 17. Cylinder; 18. Pressure rod; 19. Pressure plate; 20. Box; 21. Insulation box; 22. Bracket; 23. Delivery pump; 24. Infusion pipe; 25. Drain pipe; 26. Steel. DETAILED DESCRIPTION

[0018] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be provided below with reference to the accompanying drawings. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the present invention.

[0019] Example 1

[0020] like Figures 1 to 5 The high-temperature tensile creep testing machine of the present invention includes a base plate 1, a support plate 2, a servo motor 3, a rotating shaft 4, a three-jaw chuck A5, a stretching mechanism, a pressing mechanism and a moving mechanism. The support plate 2 is installed on the moving mechanism. The moving mechanism is used to move the support plate 2 left and right. The servo motor 3 is fixedly installed on the support plate 2. The rotating shaft 4 is rotatably installed on the support plate 2. The left end of the rotating shaft 4 is connected to the servo motor 3. The three-jaw chuck A5 is fixedly installed on the right end of the rotating shaft 4. The stretching mechanism is installed on the base plate 1. The stretching mechanism has a stretching function. The pressing mechanism is installed on the base plate 1. The pressing mechanism has a pressing function. When stretching the steel 26 During the bending test, first the left end of the steel 26 is clamped and fixed by the three-jaw chuck A5, and then the right part of the steel 26 is pulled by the stretching mechanism to test the tensile properties of the steel 26. Then the stretching mechanism is released, and then the support plate 2 drives the rotating shaft 4 to move to the left through the moving mechanism. The rotating shaft 4 moves the steel 26 to the left to the bottom of the pressing mechanism through the three-jaw chuck A5, and then the right part of the steel 26 is pressed down by the pressing mechanism to bend the steel 26, and then the bending performance of the steel 26 is tested. It can perform not only tensile testing but also bending testing, is easy to use, has few limitations, and is highly practical.

[0021] like Figure 1 The stretching mechanism includes a track 6, a sliding block 7, a support plate 8, a rotating shaft 9, a three-jaw chuck B10, a hydraulic cylinder 11, a moving rod 12 and a tension sensor 13. The track 6 is fixedly mounted on the right part of the upper end of the base plate 1, the sliding block 7 is slidably mounted on the track 6, the support plate 8 is fixedly mounted on the upper end of the sliding block 7, the rotating shaft 9 is rotatably mounted on the support plate 8, the rotating shaft 9 is coaxial with the rotating shaft 4, the three-jaw chuck B10 is fixedly mounted on the left end of the rotating shaft 9, the hydraulic cylinder 11 is fixedly mounted on the base plate 1, and a moving rod 12 is provided at the output end of the hydraulic cylinder 11. The moving rod 12 is provided with a tension sensor 13. The device 13 is fixedly installed on the support plate 8; when the steel 26 is subjected to a tensile test, the left and right parts of the steel 26 are clamped and fixed by the three-jaw chuck A5 and the three-jaw chuck B10 respectively, and then the hydraulic cylinder 11 is used to make the movable rod 12 drive the tension sensor 13 and the support plate 8 to move to the right, thereby making the rotating shaft 9 and the three-jaw chuck B10 apply a rightward tension to the steel 26, until the tension value displayed on the tension sensor 13 reaches the specified value, and the staff records the time, so that the steel 26 is stretched for a certain period of time at the specified tension, and the deformation of the steel 26 is observed to infer the tensile creep performance of the steel 26.

[0022] Continue to refer to Figure 1The moving mechanism includes an electric slide rail 14 and a sliding plate 15. The electric slide rail 14 is fixedly mounted on the base plate 1, and the sliding plate 15 is mounted on the electric slide rail 14. The electric slide rail 14 is used to move the sliding plate 15 left and right, and the support plate 2 is fixedly mounted on the upper end of the sliding plate 15. When the steel 26 is subjected to bending test, the three-jaw chuck B10 is released, and then the sliding plate 15 is moved to the left by the electric slide rail 14. The sliding plate 15 drives the rotating shaft 4 to drive the three-jaw chuck A5 and the steel 26 to move to the left through the support plate 2 until the steel 26 moves to the bottom of the pressing mechanism. Then, the steel 26 is pressed down by the pressing mechanism to test the bending performance of the steel 26. This facilitates the test of the bending performance of the steel 26.

[0023] like Figure 1 and Figure 3 The pressing mechanism includes a support frame 16, a cylinder 17, a pressing rod 18 and a pressing plate 19. The support frame 16 is fixedly mounted on the base plate 1, the cylinder 17 is fixedly mounted on the upper end of the support frame 16, the pressing rod 18 is slidably mounted on the upper part of the support frame 16, the upper end of the pressing rod 18 is connected to the output end of the cylinder 17, and the pressing plate 19 is fixedly mounted on the lower end of the pressing rod 18. A pressure sensor is provided on the pressing rod 18; when the steel 26 is subjected to a bending test, when the steel 26 moves below the pressing plate 19, the cylinder 17 is opened, and the cylinder 17 moves the pressing plate 19 downward through the pressing rod 18 until the pressing plate 19 contacts the steel 26, and then the value on the pressure sensor is observed. After knowing that the pressure reaches the specified value, the bending amount of the steel 26 can be observed; this facilitates the bending detection of the steel 26.

[0024] Example 2

[0025] On the basis of Example 1, a heating mechanism is added, such as Figure 1 and Figure 4 The insulation box 21 is fixedly mounted on the box body 20 by a bracket 22. A cavity is provided in the insulation box 21. Openings communicating with the chamber are provided at both the left and right ends of the insulation box 21. Multiple sets of electric heating lamps are provided in the chamber of the insulation box 21. When it is necessary to test the tensile properties of the steel 26 at high temperatures, the multiple sets of electric heating lamps in the insulation box 21 are turned on, and the servo motor 3 is turned on at the same time. The servo motor 3 drives the three-jaw chuck A5 to rotate the steel 26 through the rotating shaft 4, so that the steel 26 is evenly heated and the tensile properties of the steel 26 at high temperatures can be tested.

[0026] like Figure 5The delivery pump 23 is installed on the box body 20, the input end of the delivery pump 23 is connected to the box body 20, and the output end of the delivery pump 23 is connected to the drainage pipe 25 through the infusion pipe 24. The drainage pipe 25 is fixedly installed on the upper end of the insulation box 21, and the output end of the drainage pipe 25 is provided with multiple groups of spray pipes, and the multiple groups of spray pipes are all located at the upper part of the chamber of the insulation box 21; through the above arrangement, the delivery pump 23 is turned on, and the acid liquid in the box body 20 is sprayed onto the steel 26 through the delivery pump 23, the infusion pipe 24 and the drainage pipe 25, so that the steel 26 is in an acidic environment, and the performance of the steel 26 in the acidic environment can be tested, which improves convenience.

[0027] The servo motor 3, electric slide rail 14, delivery pump 23 and discharge pipe 25 of the high-temperature tensile creep testing machine of the utility model are all purchased on the market. Technicians in this industry only need to install and operate them according to the accompanying instruction manual, without the need for technical personnel in this field to make creative efforts.

[0028] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A high temperature tensile creep testing machine, comprising a bottom plate (1); characterized in that: The invention also comprises a support plate (2), a servo motor (3), a rotating shaft (4), a three-jaw chuck A (5), a stretching mechanism, a pressing mechanism and a moving mechanism. The support plate (2) is mounted on the moving mechanism. The moving mechanism is used to move the support plate (2) left and right. The servo motor (3) is fixedly mounted on the support plate (2). The rotating shaft (4) is rotatably mounted on the support plate (2). The left end of the rotating shaft (4) is connected to the servo motor (3). The three-jaw chuck A (5) is fixedly mounted on the right end of the rotating shaft (4). The stretching mechanism is mounted on the base plate (1). The stretching mechanism has a stretching function. The pressing mechanism is mounted on the base plate (1). The pressing mechanism has a pressing function.

2. A high temperature tensile creep testing machine according to claim 1, characterized in that: The stretching mechanism comprises a track (6), a sliding block (7), a support plate (8), a rotating shaft (9), a three-jaw chuck B (10), a hydraulic cylinder (11), a moving rod (12) and a tension sensor (13). The track (6) is fixedly mounted on the right portion of the upper end of the base plate (1). The sliding block (7) is slidably mounted on the track (6). The support plate (8) is fixedly mounted on the upper end of the sliding block (7). The rotating shaft (9) is rotatably mounted on the support plate (8). The rotating shaft (9) is coaxial with the rotating shaft (4). The three-jaw chuck B (10) is fixedly mounted on the left end of the rotating shaft (9). The hydraulic cylinder (11) is fixedly mounted on the base plate (1). The output end of the hydraulic cylinder (11) is provided with a moving rod (12). The moving rod (12) is provided with a tension sensor (13). The tension sensor (13) is fixedly mounted on the support plate (8).

3. A high temperature tensile creep testing machine according to claim 1, characterized in that: The moving mechanism comprises an electric slide rail (14) and a sliding plate (15), wherein the electric slide rail (14) is fixedly mounted on the base plate (1), and the sliding plate (15) is mounted on the electric slide rail (14), and the electric slide rail (14) is used to move the sliding plate (15) left and right, and the support plate (2) is fixedly mounted on the upper end of the sliding plate (15).

4. A high temperature tensile creep testing machine according to claim 1, characterized in that: The pressing mechanism comprises a support frame (16), a cylinder (17), a pressing rod (18) and a pressing plate (19); the support frame (16) is fixedly mounted on the bottom plate (1); the cylinder (17) is fixedly mounted on the upper end of the support frame (16); the pressing rod (18) is mounted on the upper part of the support frame (16) so as to slide up and down; the upper end of the pressing rod (18) is connected to the output end of the cylinder (17); the pressing plate (19) is fixedly mounted on the lower end of the pressing rod (18); and a pressure sensor is provided on the pressing rod (18).

5. The high temperature tensile creep testing machine according to claim 1, characterized in that: The invention also comprises a box body (20), a heat preservation box (21) and a bracket (22), wherein the heat preservation box (21) is fixedly mounted on the box body (20) via the bracket (22), a cavity is arranged in the heat preservation box (21), and openings communicating with the cavity are arranged at both left and right ends of the heat preservation box (21), and a plurality of electric heating lamps are arranged in the cavity of the heat preservation box (21).

6. A high temperature tensile creep testing machine according to claim 5, characterized in that: The invention also includes a delivery pump (23), a liquid infusion pipe (24) and a liquid discharge pipe (25). The delivery pump (23) is installed on the box body (20). The input end of the delivery pump (23) is communicated with the box body (20). The output end of the delivery pump (23) is communicated with the liquid discharge pipe (25) through the liquid infusion pipe (24). The liquid discharge pipe (25) is fixedly installed on the upper end of the heat preservation box (21). The output end of the liquid discharge pipe (25) is provided with multiple groups of spray pipes. The multiple groups of spray pipes are all located at the upper part of the chamber of the heat preservation box (21).

7. A high temperature tensile creep testing machine according to claim 5, characterized in that: The box body (20) is made of stainless steel.

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