Nanometer material strength testing device

Abstract

The utility model discloses a nano material strength testing device which comprises a base, a vertical rod fixedly connected to the top of the base, a mounting plate fixedly connected to the top end of the vertical rod, a tension sensor arranged at the bottom of the mounting plate and a moving mechanism arranged at the top of the base, the moving mechanism comprises a speed reducing motor, a cam, a crank, a mounting cylinder, a hinge seat and a moving plate, the cam is fixedly connected to an output shaft of the speed reducing motor, the crank is hinged to the outer portion of the cam, the mounting cylinder is fixedly connected to the bottom end of the crank, the hinge seat is arranged at the bottom of the mounting cylinder, and the moving plate is arranged on the hinge seat. And the movable plate is fixedly connected to the bottom of the hinge seat. Under the vertical reciprocating motion of the moving mechanism, multiple experiments are carried out on the same test condition to adapt to nano material samples with different sizes and shapes, so that reliable statistical data and test results with high repeatability are obtained, and the test accuracy and consistency are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of nano material testing, and in particular relates to a nano material strength testing device. Background Art

[0002] With the rapid development of nanotechnology, nanomaterials are increasingly used in various fields. However, the mechanical properties of nanomaterials are the key to their application, so it is particularly important to accurately test their strength.

[0003] Nanomaterial strength tests usually use tensile instruments such as nanomaterial tensile testing machines or electronic universal testing machines. These devices are specially designed to test the performance of nanomaterials during the tensile process and can accurately measure the mechanical properties of nanomaterials, such as tensile strength, fracture toughness, ductility, etc. However, existing testing devices may not be able to perform high-precision and high-efficiency tests on mechanical properties under multiple stress states during the test process, which limits their application in nanomaterial strength testing. Utility Model Content

[0004] The utility model aims to solve the problem that the existing technology cannot perform high-precision and high-efficiency testing of mechanical properties under various stress states, and proposes the following technical solutions:

[0005] A nano material strength testing device comprises a base, a vertical pole fixedly connected to the top of the base, a mounting plate fixedly connected to the top of the vertical pole, a tension sensor arranged at the bottom of the mounting plate, and a moving mechanism arranged at the top of the base:

[0006] The moving mechanism includes a reduction motor, a cam, a crank, a mounting cylinder, a hinge seat, and a moving plate, wherein the cam is fixedly connected to the output shaft of the reduction motor, the crank is hinged to the outside of the cam, the mounting cylinder is fixedly connected to the bottom end of the crank, the hinge seat is arranged at the bottom of the mounting cylinder, and the moving plate is fixedly connected to the bottom of the hinge seat;

[0007] The moving mechanism also includes a servo motor, a threaded rod, and a threaded sleeve. The servo motor is fixedly mounted on the inner top wall of the mounting tube, the threaded rod is fixedly connected to the output shaft of the servo motor, the threaded sleeve is threadedly connected to the outside of the threaded rod, and the hinged seat is rotatably connected to the outside of the threaded sleeve.

[0008] Under the up and down reciprocating motion of the mobile mechanism, multiple experiments are carried out on the same test conditions to accommodate nanomaterial samples of different sizes and shapes, thereby obtaining reliable statistical data and test results with high repeatability, improving the accuracy and consistency of the test.

[0009] As a preferred embodiment of the above technical solution, the outside of the reduction motor is fixedly connected to a connecting frame, the connecting frame is fixedly connected to the top of the mounting plate, the crank is swingably connected to the outside of the crank, and the inside of the mounting plate is provided with a limit opening adapted to the crank.

[0010] Under the limiting effect of the limiting opening, the stability of the crank moving up and down is improved.

[0011] As a preferred embodiment of the above technical solution, the threaded rod is rotatably connected to the interior of the mounting tube, the mounting tube is a hollow cylinder, a movable opening adapted to the threaded sleeve is opened inside the mounting tube, and the tension sensor is fixedly installed at the bottom of the movable plate.

[0012] Under the transmission of the threaded rod, the tension sensor can be adjusted up and down, so that a variety of stress states and loading conditions can be simulated during the test.

[0013] As a preferred embodiment of the above technical solution, the number of the vertical poles is two, a sliding hole matched with the vertical pole is opened inside the movable plate, and the movable plate is slidably connected to the outside of the vertical pole through the sliding hole.

[0014] Under the limit of the vertical pole, the stability of the tension sensor moving up and down is improved.

[0015] As a preferred embodiment of the above technical solution, a fixing mechanism is provided on the top of the base, and the fixing mechanism includes a fixing seat, an electric push rod, and a clamp. The electric push rod is fixedly installed on the outside of the fixing seat and extends to the inside thereof, and the clamp is fixedly connected to the output end of the electric push rod.

[0016] Under the clamping action of the fixing mechanism, the stability of the nanomaterial sample during the test is ensured.

[0017] As a preferred embodiment of the above technical solution, the number of the fixing mechanisms is two, the bottom fixing mechanism is fixedly connected to the top of the base, and the top fixing mechanism is fixedly connected to the bottom of the tension sensor.

[0018] With the assistance of a fixing mechanism, it can be applied to mechanical property tests of various nanomaterial samples.

[0019] The beneficial effects of the utility model are:

[0020] (1) Under the up-and-down reciprocating motion of the mobile mechanism, multiple experiments are conducted on the same test conditions to accommodate nanomaterial samples of different sizes and shapes, thereby obtaining reliable statistical data and highly repeatable test results, improving the accuracy and consistency of the test;

[0021] (2) Under the clamping action of the fixing mechanism, it is used to fix the nanomaterial sample to ensure its stability during the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 What is shown is a structural stereogram of a nano material strength testing device;

[0023] Figure 2 Shown is a structural stereogram of a moving mechanism of a nano material strength testing device;

[0024] Figure 3 Shown is a structural cross-sectional stereogram of a moving mechanism of a nano material strength testing device;

[0025] Figure 4 Shown is a structural stereogram of a fixing mechanism of a nano material strength testing device.

[0026] In the figure: 1. base; 2. vertical pole; 3. mounting plate; 4. tension sensor; 5. moving mechanism; 51. reduction motor; 52. cam; 53. crank; 54. mounting cylinder; 55. servo motor; 56. threaded rod; 57. threaded sleeve; 58. articulated seat; 59. moving plate; 6. fixing mechanism; 61. fixing seat; 62. electric push rod; 63. fixture. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the embodiments of the present utility model clearer, the technical solution of the present utility model will be clearly and completely described below in conjunction with the embodiments.

[0028] Example

[0029] Figures 1 to 4 The structure diagram of a specific embodiment of the utility model is shown. A nano material strength testing device includes a base 1, a vertical pole 2 fixedly connected to the top of the base 1, a mounting plate 3 fixedly connected to the top of the vertical pole 2, a tension sensor 4 arranged at the bottom of the mounting plate 3 and a moving mechanism 5 arranged at the top of the base 1, the moving mechanism 5 includes a reduction motor 51, a cam 52, a crank 53, a mounting cylinder 54, a hinge seat 58, and a moving plate 59, the cam 52 is fixedly connected to the output shaft of the reduction motor 51, the crank 53 is hinged to the outside of the cam 52, the mounting cylinder 54 is fixedly connected to the bottom end of the crank 53, the hinge seat 58 is arranged at the bottom of the mounting cylinder 54, and the moving plate 59 is fixedly connected to the bottom of the hinge seat 58.

[0030] The outside of the reduction motor 51 is fixedly connected to a connecting frame, which is fixedly connected to the top of the mounting plate 3 . The crank 53 is swingably connected to the outside of the crank 53 . A limiting opening adapted to the crank 53 is provided inside the mounting plate 3 .

[0031] Under the limiting effect of the limiting opening, the stability of the crank 53 moving up and down is improved.

[0032] The controller starts the reduction motor 51 to make the cam 52, crank 53, mounting tube 54, moving plate 59 and tension sensor 4 reciprocate up and down, so as to facilitate multiple experiments under the same test conditions, thereby obtaining reliable statistical data and highly repeatable test results.

[0033] The moving mechanism 5 also includes a servo motor 55, a threaded rod 56, and a threaded sleeve 57. The servo motor 55 is fixedly mounted on the inner top wall of the mounting tube 54, the threaded rod 56 is fixedly connected to the output shaft of the servo motor 55, the threaded sleeve 57 is threadedly connected to the outside of the threaded rod 56, and the hinged seat 58 is rotatably connected to the outside of the threaded sleeve 57.

[0034] Specifically, the threaded rod 56 is rotatably connected to the inside of the mounting tube 54 . The mounting tube 54 is a hollow cylinder. A movable opening adapted to the threaded sleeve 57 is provided inside the mounting tube 54 . The tension sensor 4 is fixedly mounted on the bottom of the movable plate 59 .

[0035] The servo motor 55 is started by the controller to drive the threaded rod 56 to rotate, so that the threaded sleeve 57 drives the hinge seat 58, the movable plate 59 and the tension sensor 4 to adjust up and down, so that during the test process, various stress states and loading conditions can be simulated to comprehensively evaluate the mechanical properties of the nanomaterial samples.

[0036] In addition, there are two vertical poles 2 , and a sliding hole matching the vertical pole 2 is provided inside the movable plate 59 , and the movable plate 59 is slidably connected to the outside of the vertical pole 2 through the sliding hole.

[0037] Under the limit of the vertical pole 2, the stability of the tension sensor 4 moving up and down is improved.

[0038] Figure 1 and Figure 4 In the figure, a fixing mechanism 6 is arranged on the top of the base 1, and the fixing mechanism 6 includes a fixing seat 61, an electric push rod 62, and a clamp 63. The electric push rod 62 is fixedly installed on the outside of the fixing seat 61 and extends to the inside thereof, and the clamp 63 is fixedly connected to the output end of the electric push rod 62.

[0039] There are two fixing mechanisms 6 , the bottom fixing mechanism 6 is fixedly connected to the top of the base 1 , and the top fixing mechanism 6 is fixedly connected to the bottom of the tension sensor 4 .

[0040] The nano material is placed between the two fixing seats 61, and then the electric push rod 62 is started to extend and retract to drive the clamp 63 to move, so as to clamp the nano material sample and ensure the stability and accuracy of the nano material sample during the test.

[0041] The above embodiments are only used to illustrate the technical solution of the present invention, but not to limit it.

Claims

1. A nano material strength testing device, comprising a base (1), a vertical rod (2) fixedly connected to the top of the base (1), a mounting plate (3) fixedly connected to the top of the vertical rod (2), a tension sensor (4) arranged at the bottom of the mounting plate (3), and a moving mechanism (5) arranged at the top of the base (1), characterized in that: The moving mechanism (5) comprises a reduction motor (51), a cam (52), a crank (53), a mounting cylinder (54), an articulated seat (58), and a moving plate (59); the cam (52) is fixedly connected to the output shaft of the reduction motor (51); the crank (53) is hinged to the outside of the cam (52); the mounting cylinder (54) is fixedly connected to the bottom end of the crank (53); the articulated seat (58) is arranged at the bottom of the mounting cylinder (54); and the moving plate (59) is fixedly connected to the bottom of the articulated seat (58); The moving mechanism (5) further comprises a servo motor (55), a threaded rod (56), and a threaded sleeve (57); the servo motor (55) is fixedly mounted on the inner top wall of the mounting tube (54); the threaded rod (56) is fixedly connected to the output shaft of the servo motor (55); the threaded sleeve (57) is threadedly connected to the outside of the threaded rod (56); and the hinge seat (58) is rotatably connected to the outside of the threaded sleeve (57).

2. A nano material strength testing device according to claim 1, characterized in that: The outside of the reduction motor (51) is fixedly connected to a connecting frame, the connecting frame is fixedly connected to the top of the mounting plate (3), the crank (53) is swingably connected to the outside of the crank (53), and the inside of the mounting plate (3) is provided with a limiting opening adapted to the crank (53).

3. A nano material strength testing device according to claim 1, characterized in that: The threaded rod (56) is rotatably connected to the interior of the mounting tube (54); the mounting tube (54) is a hollow cylinder; a movable opening matching the threaded sleeve (57) is provided inside the mounting tube (54); and the tension sensor (4) is fixedly mounted on the bottom of the movable plate (59).

4. A nano material strength testing device according to claim 1, characterized in that: The number of the vertical poles (2) is two, and a sliding hole matching the vertical pole (2) is provided inside the movable plate (59), and the movable plate (59) is slidably connected to the outside of the vertical pole (2) through the sliding hole.

5. A nano material strength testing device according to claim 1, characterized in that: A fixing mechanism (6) is provided on the top of the base (1), the fixing mechanism (6) comprising a fixing seat (61), an electric push rod (62), and a clamp (63), the electric push rod (62) being fixedly mounted on the outside of the fixing seat (61) and extending into the inside thereof, and the clamp (63) being fixedly connected to the output end of the electric push rod (62).

6. A nano material strength testing device according to claim 5, characterized in that: The number of the fixing mechanisms (6) is two, the bottom fixing mechanism (6) is fixedly connected to the top of the base (1), and the top fixing mechanism (6) is fixedly connected to the bottom of the tension sensor (4).

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