Technical solution for durability test benches for electric vehicle frames

Two-channel servo loading test system electric vehicle frame durability test bench technical solution one.
Overview: GL3020 two-channel servo loading test system, using multi-channel coordinated control technology, the loading test system is mainly used for frame, thrust rod and metal components of the static mechanical properties of the experiment, such as static tensile test, torsion, etc
.

The two actuators are controlled in harmony and can work either individually or simultaneously
.

Applicable Standards: Main components: l Main loading rack 1 set l 30kN servo loader 1 set l 20kN servo loader 1 set l Integrated control cabinet 1 set l Closed-loop measurement and control system 2 sets l 30kN load sensor 1 l 20kN load sensor 1 l servo motor and controller 2 sets l Test tooling 1 set l accessories and spare parts 1 set 2.
Main structure characteristics l The overall use of gantry frame structure, by bilateral columns, lower working platform, middle mobile beam, The upper connecting sub-top beam is composition; l The beam adopts lead screw lifting, mechanical clamping, elastic loosening structure to ensure the stability and reliability of the test, and at the same time to ensure that the beam remains locked in the non-test state; l The beam motion module is manufactured by imported HIWIN to ensure high reliability during high-frequency testing; Locking relies on the self-locking of the reducer; l Use tie rods on both sides of each side of the column to connect the upper part of the top beam and the lower working platform to improve the stiffness of the host and maintain stability; l Place beam movement and emergency stop operation buttons next to the main machine to facilitate the operation of the tester; l Installed on the main machine moving beam, with the movement of the middle beam, itself is equipped with a guide rail, can be moved left and right; l Unitized, standardized and modular design, with the characteristics of low damping, high response, high life and large gap design; l Suitable for static tensile pressure test test, durability fatigue test, etc.
; l Rated test force ± 30kN and ±20kn, total stroke 150mm; l Suitable for long-term static loading test; l External displacement sensor, load sensor, with force and displacement two closed-loop control loops; l The load sensor is placed in the middle of the beam and the pre-stress ring is configured to fully ensure the safety and reliability of the connection during the dynamic test; ² Maximum test force: 30kN; ² Adjustable bearing clearance to minimize clearance; 3.
Control system: Suptest two-channel all-digital servo controller and software system to realize the all-digital closed-loop control function
of the testing machine.

1.
The main technical indicators of the all-digital two-channel hydraulic servo controller l The number of control channels: 2
.

l Each channel includes three closed-loop control loops of test force (torque), displacement (torque) and strain, with the function of
control mode without disturbance and smooth switching.

The number of configuration site control interfaces
: 2.

l Phase control accuracy between channels: 2°; l Three all-digital universal signal conditioning units: test force (torque), displacement (torque), strain three closed-loop control loops
.

Has a control mode non-disturbing smooth switching function
.

l Controller A/D, D/A resolution of 24 bits; l Control accuracy: static control accuracy accuracy typical value is generally 0.
5% FS.
l Other necessary I/O input and output units: four analog inputs, four analog output interfaces; Four digital inputs, four digital output interfaces
.

l Limit parameter setting function
.

2.
Testing machine (system) control software supttest3.
0:2.
1 system management software supttest 3.
0: The software is the basis of the entire digital servo controller work, its main function is to manage the hardware resources of the control system, define the sensor, digital control parameter adjustment, set protection, display the current control mode and function generator status and sensor calibration, 2.
2 multi-function test software supttest 3.
0: The software is a flexible, full-featured test software, users can use it to design special test methods, but do not need to program
.

This software servo controller has a variety of control functions, data acquisition functions and other auxiliary functions are done in the form of icons on a panel, users can drag and drop these function icons with the mouse into the test definition panel, and they are freely combined according to user needs, you can follow the user-defined test method for experimentation
.

The software can be used for randomized spectroscopy trials
.

Main technical indicators 1, test space: 1500mm (front and rear)× 1000mm (width)×1500mm (height); 2.
Main machine size: 2000mm (front and rear)× 1350mm (width)×1800mm (height); 3, vertical rated test force: 30kN, accuracy ±1%, accuracy range 2%-100% FS.
; 4, horizontal rated test force: 20kn, accuracy ±1%, accuracy range 2%-100% FS.
; 5, loader stroke: 150mm, indication accuracy ±0.
5% FS.
; 6, control mode: two-channel all-digital coordinated control; 7.
Control mode: full digital force of each channel, displacement closed-loop control, control mode can be smoothly switched; Tags:2-channel servo loading test system electric vehicle frame durability test bench