Horizontal loading device for relaxation experiment

Abstract

A horizontal loading device for a relaxation experiment belongs to the field of test experiment devices, and is characterized by comprising a bottom frame, a screw rod, a grip, a chuck and a sensor, bosses are arranged at the two ends of the bottom frame and include the upper boss and the lower boss. The screw rod is arranged on the bottom frame and is positioned between the bosses at the two ends of the bottom frame; a sliding table is arranged on the screw rod; the chuck comprises an upper chuck and a lower chuck; the upper chuck is fixedly connected with the upper boss; the lower chuck is connected with one end of the sensor; and the sliding table is connected with the other end of the sensor. A bottom frame is horizontally arranged, a lead screw and a sliding table are arranged between bosses at the two ends of the bottom frame, and meanwhile a chuck and a sensor are arranged between the sliding table and an upper boss; a to-be-tested piece is clamped through the chuck, the sliding table slides through the lead screw to drive the lower chuck to move, force is applied to the to-be-tested piece clamped by the chuck, meanwhile, monitoring is conducted through the sensor, the structure is simple, operation is easy, horizontal relaxation experiments of various materials can be achieved, and the device is suitable for application and popularization.

Description

Technical Field

[0001] The utility model belongs to the field of test experimental devices, in particular to a horizontal loading device used for relaxation experiments. Background Art

[0002] Stress relaxation is a common phenomenon in materials. Under a certain strain, the internal stress of the material will gradually decay with time. In viscoelastic materials, stress relaxation will have a greater impact on viscoelastic materials. Existing studies mostly use testing machines to conduct relaxation tests on materials, and temperature conditions have a greater impact on the mechanical properties of viscoelastic materials. If it is necessary to control the temperature for relaxation experiments, the existing experimental devices mostly place the test piece vertically and then control the temperature. It is impossible to eliminate the influence of gravity on the experimental results when placed vertically, and the test cost is also relatively high. Summary of the invention

[0003] The utility model aims to solve the above problems and provides a horizontal loading device for relaxation test with a simple structure, which can conveniently and quickly realize horizontal relaxation test of different materials.

[0004] The horizontal loading device for relaxation experiment of the utility model comprises a base frame, a screw rod, a grip, a chuck and a sensor;

[0005] Both ends of the base frame are provided with bosses, which are an upper boss and a lower boss respectively;

[0006] The base frame is U-shaped;

[0007] The screw rod is arranged on the base frame and is located between the bosses at both ends of the base frame;

[0008] The front end of the screw rod passes through the front boss of the aforementioned chassis and is connected to the handle;

[0009] A slide table is arranged on the screw rod;

[0010] The chuck comprises an upper chuck and a lower chuck; the upper chuck is fixedly connected to the upper boss;

[0011] The lower chuck is connected to one end of the sensor; the slide is connected to the other end of the sensor;

[0012] The upper chuck, the lower chuck and the sensor are located above the screw rod;

[0013] The upper clamp, the lower clamp and the sensor are located between the upper boss and the slide.

[0014] During the test, the test piece is clamped between the upper chuck and the lower chuck. The handle rotates the screw to drive the slide on the screw to move. The slide in turn drives the sensor and the lower chuck to move, thereby applying force to the test piece. The stress-related data is collected through the sensor to complete the test.

[0015] Furthermore, in the horizontal loading device for relaxation test of the utility model, a graduated torsion plate is arranged between the handle and the screw rod; the front end of the screw rod passes through the front boss of the base frame and is connected to the graduated torsion plate;

[0016] The grip is arranged on the aforementioned graduated torsion disc. By arranging the graduated torsion disc, the displacement data of the slide table can be conveniently controlled, thereby improving the operation precision of the loading device and the accuracy of the test results.

[0017] Furthermore, in the horizontal loading device for relaxation test described in the utility model, a set of cylindrical guide rails are arranged in parallel between the upper boss and the lower boss; a guide rail through hole is arranged at the corresponding position of the aforementioned slide; and the aforementioned slide is sleeved on the cylindrical guide rail through the guide rail through hole. By arranging the cylindrical guide rail for the slide, it can be effectively ensured that the displacement loading direction of the test piece is fixed during the movement of the slide, thereby improving the accuracy of the test result.

[0018] Furthermore, in the horizontal loading device for relaxation test described in the utility model, both the upper chuck and the lower chuck are provided with slots for clamping the test piece to be tested; by providing the slots, the test piece can be quickly clamped on the chuck, thereby improving operating efficiency.

[0019] Furthermore, in the horizontal loading device for relaxation test described in the utility model, a plurality of support screws are evenly arranged at the bottom of the base frame; by arranging support screws at the bottom of the base frame for fixing the base frame and the mounting components, it is ensured that the loading device does not move when displacement loading is applied to the test piece.

[0020] Furthermore, the horizontal loading device for relaxation test of the utility model further includes a motor; the motor is connected to the aforementioned handle. By driving the handle to rotate with the motor, the rotation rate of the screw rod can be conveniently controlled, thereby controlling the strain rate of the test piece to be tested, thereby improving the accuracy of the test.

[0021] The utility model discloses a horizontal loading device for relaxation test, which is provided with a horizontally arranged base frame, a screw rod and a slide table between the bosses at both ends of the base frame, and a chuck and a sensor between the slide table and the upper boss; the chuck clamps the test piece, and the screw rod slides the slide table to drive the lower chuck to move, and a force is applied to the test piece clamped by the chuck, and the sensor is used for monitoring at the same time. The utility model has a simple structure, is easy to operate, can realize horizontal relaxation tests of various materials, and is suitable for popularization and application. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic structural diagram of a horizontal loading device for relaxation experiments according to an embodiment of the utility model;

[0023] Among them, 1-upper boss, 2-lower boss, 3-upper chuck, 4-lower chuck, 5-sensor, 6-screw, 7-slide, 8-handle, 9-cylindrical guide, 10-scale torsion disk, 11-support screw, 12-test piece, 13-base. DETAILED DESCRIPTION

[0024] The horizontal loading device for relaxation test of the utility model is described in detail below through the accompanying drawings and embodiments.

[0025] Embodiment 1

[0026] This embodiment discloses a horizontal loading device for relaxation experiment, such as Figure 1 As shown, it includes a base frame 13, a screw rod 6, a handle 8, a chuck and a sensor 5; bosses are provided at both ends of the base frame, namely an upper boss 1 and a lower boss 2; the base frame is U-shaped; the screw rod 6 is arranged on the base frame 13 and is located between the bosses at both ends of the aforementioned base frame. In the embodiment disclosed in the present invention, the boss and the screw are connected by a bearing; the front end of the screw rod 6 passes through the front boss of the aforementioned base frame and is connected to the handle 8; a slide 7 is provided on the screw rod 6; the chuck includes an upper chuck 3 and a lower chuck 4; the upper chuck 3 is fixedly connected to the aforementioned upper boss 1; the lower chuck 4 is connected to one end of the sensor 5; the slide 7 is connected to the other end of the aforementioned sensor 5; the upper chuck 3, the lower chuck 4 and the sensor 5 are located above the aforementioned screw rod 6; the upper chuck 3, the lower chuck 4 and the sensor 5 are located between the aforementioned upper boss 1 and the slide 7; a support screw 11 is provided at each of the four bottom corners of the base frame 13.

[0027] In the disclosed embodiment, a graduated torsion disc 10 is provided between the grip 8 and the screw rod 6; the front end of the screw rod 6 passes through the front boss of the base frame and is connected to the graduated torsion disc 10; the grip is provided on the graduated torsion disc 10.

[0028] In the disclosed embodiment, a set of cylindrical guide rails 9 are arranged in parallel between the upper boss 1 and the lower boss 2; guide rail through holes are arranged at corresponding positions of the aforementioned slide 7; and the aforementioned slide 7 is sleeved on the cylindrical guide rails 9 through the guide rail through holes.

[0029] In the disclosed embodiment, both the upper chuck 3 and the lower chuck 4 are provided with a slot for clamping the test piece 12 ; by providing the slot, the test piece 12 can be quickly clamped on the chuck, thereby improving the operation efficiency.

[0030] Before testing, the support screws 11 provided at the bottom of the base frame 13 are used to fix the mounting components to ensure that the loading device does not move when displacement loading is applied to the test piece 12. The components are connected and assembled by tightening the screws.

[0031] When testing, the test piece 12 is clamped between the upper chuck 3 and the lower chuck 4 through the clamping slots provided on the chucks, the handle 8 is turned, the scale torsion plate 10 is rotated, and the screw rod 6 and the slide 7 are moved, and then the lower chuck 4 is displaced, and the test piece 12 is stretched to a predetermined displacement value to reach a predetermined position. The cylindrical guide rail 9 ensures that the displacement loading direction of the test piece 12 remains unchanged during the movement of the slide 7, and the strain rate of the test piece 12 is controlled by controlling the rate of rotating the handle, and the stress changes during the test are recorded by the sensor 5 to complete the test experiment.

[0032] In specific applications, when tests are required under different temperature conditions, the loading device can be placed as a whole in a temperature box, and cylindrical guide rails 9 of different lengths can be used. The base frame 13 and the lead screw can be adapted to different temperature box sizes to achieve relaxation tests in different temperature boxes.

[0033] Embodiment 2

[0034] Based on the above-mentioned embodiment 1, the embodiment of the present disclosure also includes a motor; the motor is connected to the aforementioned handle 8. When testing, the test piece 12 is clamped between the upper chuck 3 and the lower chuck 4 through the slot set on the chuck, and the motor is started to rotate the handle 8 and the scale torsion disk 10, while driving the screw rod 6 and the slide 7 to move, thereby driving the lower chuck 4 to move, and stretching the test piece 12 to a predetermined displacement value to a predetermined position. The cylindrical guide rail 9 ensures that during the movement of the slide 7, the displacement loading direction of the test piece 12 remains unchanged, and the strain rate of the test piece 12 is controlled by the motor. At the same time, the stress changes during the test are recorded by the sensor 5 to complete the test experiment.

Claims

1. A horizontal loading device for relaxation test, characterized in that: Including base frame, screw rod, grip, chuck and sensor; Both ends of the base frame are provided with bosses, which are an upper boss and a lower boss respectively; The base frame is U-shaped; The screw rod is arranged on the base frame and is located between the bosses at both ends of the base frame; The front end of the screw rod passes through the front boss of the aforementioned chassis and is connected to the handle; A slide table is arranged on the screw rod; The chuck comprises an upper chuck and a lower chuck; the upper chuck is fixedly connected to the upper boss; The lower chuck is connected to one end of the sensor; the slide is connected to the other end of the sensor; The upper chuck, the lower chuck and the sensor are located above the screw rod; The upper clamp, the lower clamp and the sensor are located between the upper boss and the slide.

2. The horizontal loading device for relaxation test according to claim 1, characterized in that: A graduated torsion plate is provided between the handle and the screw rod; the front end of the screw rod passes through the front boss of the chassis and is connected to the graduated torsion plate; The grip is arranged on the aforementioned scale twist plate.

3. The horizontal loading device for relaxation test according to claim 2, characterized in that: A group of cylindrical guide rails are arranged in parallel between the upper boss and the lower boss; guide rail through holes are arranged at corresponding positions of the aforementioned slide; and the aforementioned slide is sleeved on the cylindrical guide rails through the guide rail through holes.

4. The horizontal loading device for relaxation test according to claim 3, characterized in that: The upper clamp and the lower clamp are both provided with clamping slots for clamping the test piece.

5. The horizontal loading device for relaxation test according to claim 4, characterized in that: A plurality of supporting screws are evenly arranged on the bottom of the base frame.

6. The horizontal loading device for relaxation test according to claim 5, characterized in that: It also includes a motor; the motor is connected to the aforementioned handle.

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