Resonance fatigue testing machine

It is used to determine the fatigue properties, fatigue life, prefabricated cracks and tensile, compression or tension-compression alternating loads of metals, alloy materials and their components (such as operating joints, fasteners, screw moving parts, etc.) at room temperature.

Crack growth test. After the high-frequency fatigue testing machine is equipped with corresponding test fixtures, it can perform three-point bending test, four-point bending test, thin plate tensile test, thick plate tensile test, reinforced steel tensile test, chain tensile test under sinusoidal load Test, fastener test, connecting rod test, torsional fatigue test, bending-torsional composite fatigue test, alternating bending fatigue test, CT test, CCT test, gear fatigue test, etc. This is the full explanation of the fatigue testing machine.

wohler fatigue testing machine widely used for our production and research,

TLS-YW500 computer-controlled dynamic and static comprehensive testing machine can not only complete static performance test, but also carry out dynamic fatigue test.

According to the special needs of large-scale samples (1000*1000*1000), the testing machine is designed with mature technology and production, and adopts four-column support and guide structure to ensure the rigidity and stability of the whole machine in large space.

The moving beam is also guided by four uprights, which ensures that there is no lateral drift under heavy ballast, and the force and displacement test is accurate.

Introduction

The testing machine is composed of a host computer, a loading system, an electrical control system (data acquisition, processing, amplifying part, and a computer, printer, data processing software), tooling fixtures, and protective devices. This testing machine uses manual or automatic control (two control methods, which can be freely converted) to load the motor, three load cells placed evenly to measure the force, and the displacement to measure the displacement of the box. The test force, displacement, various test methods, test parameters, test curves, test data, etc. are displayed on the PC screen.

Host Machine

The vertical structure is adopted, and the loading part of the servo motor is placed on the top. The main machine consists of a base, a workbench, a beam, a column, and a lead screw. The worktable is placed on the ground, and the load cell is placed on the moving beam. Because the pressure plate is large, three sensors are used. The upper platen seat is fixed on the lead screw and moves up and down under the drive of the loading system. Then complete the static performance and dynamic fatigue test of the box.

Loading System

The loading system consists of servo motor, servo planetary reducer, synchronous belt and synchronous pulley. The loading force and test speed of the system can be adjusted. The servo motor has high control precision, large torque at low speed and low noise. The deceleration system adopts the combination of planetary gear reducer and arc synchronous toothed belt deceleration; precise helical gear transmission, smooth and stable operation, the backlash between teeth is less than 3 minutes, equipped with precision preloaded ball screws to make the beam Forward and reverse running zero error.

Electrical parts

The electrical part consists of a strong electric system and a microcomputer control system. Execute the control signal set by the computer to control the action of the servo motor, which can realize automatic and manual control conversion. The control part provides AC 380V power supply by three-phase four-wire system, and the microcomputer provides AC 220V50Hz power supply alone. The control system has limit protection function. The microcomputer control system is mainly composed of hardware (computer, amplifier, printer, etc.) and software to realize action control and data display and processing. (See the figure below for the main interface, the static control part):

Dynamic Fatigue Test Section

Fixtures聽&聽Protection

The main purpose of the tooling fixture of the test plane is to ensure the accuracy, safety and speed of the test. Equipped with a protective door, when the protective door is opened, the main engine is powered off, and the testing machine cannot work; when the protective door is closed, the experiment can be carried out. And equipped with other software and hardware protection. Maximum protection of equipment and personnel safety.

Technical Parameter:

NO. Item Name Model Specification

1 Max. Loading 500kN

2 Test force range 1%-100%FS

3 The maximum distance between the upper platen and the work surface 1200mm

4 Test maximum stroke 1000mm

5 Beam moving speed 0~10mm/min聽adjustable

6 Displacement minimum reading 0.01mm

7 Minimum reading of test force 0.01 kN

8 Loading method Two types: manual and program-controlled loading

9 Platen size 1100*1100mm

10 Dynamic Fatigue Test Frequency 0.1-2Hz

11 Dynamic fatigue test stroke 鈮?mm

12 Mainframe Dimensions (L脳W脳H) About 1300mm脳1300mm脳2100mm

System configuration checklist:

NO. Item Name Specification Qty

1 host frame self made 1 set

2 motor servo motor 1 set

3 reducer Servo Planet 1 set

4 device controller Independent research and development 1 set

5 Device Control Software Independent research and development 1 set

6 timing belt arc 2 sets

7 load cell spokes 3 PCS

8 Displacement straight grating Coslight 1 PCS

9 Control cabinet self made 1 PCS

12 computer Lenovo’s current mainstream configuration 1 PCS

13 printer HP 1 PCS

14 protective net self made 1 SET

15 Tooling Processing according to the size provided by the user 1 SET

A fatigue testing machine is a device to assess the fatigue life of materials. It produces cyclic loads that simulate the conditions of service and measures their effect on a specimen.

It checks the strength of the material under repeated loads and helps predict the final life span of equipment and machinery used in heavy industries like mining, engineering, etc.

Fatigue machine is also known as聽fatigue test machine,聽fatigue strength tester, or聽fatigue tester.

3 Most Common Uses of a Fatigue Testing Machine:

Fatigue tests are critical in manufacturing because they determine a material’s lifespan. One can conduct fatigue tests in a laboratory setting. Using a machine interface and software, one can load a known amount of weight down onto the samples to see how much stress can be placed on them before they break.

Fatigue testing machines use high frequency dynamic and static loading to evaluate the sturdiness of articles by applying force over many cycles until failure.

In short, machines subject these materials to thousands of repetitions of just about any type of stress one can give them until they break.

Fatigue Testing Machine Working Explained:

wohler fatigue testing machine ,聽Let us understand how the device works here:

Fatigue Testing is a non-destructive test, performed to check the strength of a material under different load conditions and find out the maximum number of cycles it can withstand before failure. The device tests the Sample material by applying tension and measuring the resulting elongation. The test specimen is supported at one end and attached to a tensile testing machine which uses the force necessary to produce the desired extension.

To perform a fatigue test, we need to use a device created to generate and sustain extremely high levels of stress on different materials. This machine can take many shapes and sizes depending on its use.

However, one of its most crucial components remains that it has to withstand high-stress levels without breaking or falling repeatedly. When testing for fatigue, for example, the machine needs to predict whether a material (such as metal) will be able to withstand prolonged exposure to extremely high levels of stress.

It’s essential that they’re able to sustain these levels and that they’re still function