Guangdong Product Quality Supervision and Inspection Research Institute Buried Lamp Shear Load Test Device DMS-9980

Guangdong Product Quality Supervision and Inspection Research Institute Buried Lamp Shear Load Test Device

1.1 Objective of the test

The underground lamp shear load test equipment of Guangdong Product Quality Supervision and Inspection Research Institute meets the requirements of static load resistance, torque resistance, and shear load resistance tests in sections 6.1 and 6.2 of GB7000.213-2008 standard. Underground lighting fixtures should be able to withstand the required small static loads, as well as the forces generated by turning, braking, and accelerating tires.

1.2 Design Overview

The buried lamp static load and shear load testing machine adopts electric mode to provide stable and quiet constant pressure. According to the standard requirements, the extrusion device must meet a pressure change rate of ≤ 5000N/min, a rubber indenter diameter requirement of 50mm, a Shore hardness of 60-70, and a thickness of 50mm. The system adopts CNC proportional control, multiple high-precision pressure sensors for sampling, and controls the closed loop.

This testing machine is based on the years of design experience and understanding of standards of Demaisheng Company in mechanical equipment. Effectively improve the service life of experimental equipment and ensure the accuracy of experimental data. The pressure signal collected by the pressure sensor is fed back to the analysis instrument for processing, achieving adjustable pressure, adjustable pressure holding time, and display of extrusion cycles. It has high automation, easy operation, and one click control.

1.3 Guangdong Product Quality Supervision and Inspection Research Institute Buried Lamp Shear Load Test DeviceProduct Features:

A. MCU system realizes automated testing, easy to operate

B、 Complete display of test pressure values for easy understanding of each testing process

C、 High precision pressure sensor with stable sampling

D、 Multi functional and highly integrated.

1.4 Satisfied testing methods

1. Static load resistance test: in accordance with the requirements of Chapter 6.1 of the standard GB7000.213-2008, the diameter of the cylindrical rubber impact hammer head is 50mm, the thickness is about 50mm, the Shore A hardness is 65 ± 5, the load application rate is ≤ 5000N/min, and the application time is 1 minute;

2. Anti torque test: in accordance with the requirements of section 6.2.1 of standard GB7000.213-2008, apply a torque of 50N/1m for 1 minute;

3. Shear load resistance test: in accordance with the requirements of Chapter 6.2.2 of the standard GB7000.213-2008, apply a tensile force of 5kN, apply it for 5s~10s/time, and apply it 20 times.

2、 Product performance indicators:

1. Pressure range: 0-20kN adjustable setting;

2. Pressure holding time: Shear force holding time is 5-10 seconds/static resistance time is 60 seconds;

3 squeezing cycles: 20 times;

4. Pressure fluctuation: ＜ 1.0%;

Studio size: approximately 600 × 800 × 1700 (mm) (depth × width × height);

6 Power supply: 380V~50Hz

2.5kw

7 Power source: Hydraulic power

8 High pressure gear pump: displacement motor 1400 rpm, flow rate 2.8 liters/minute

9. Measurement and Control System

9.1 Pressure measurement: high-precision pressure sensor;

9.2 Sensor accuracy; ±0.1%；

9.3 Control mode: MCU automatic control;

9.4 Operation mode: Constant operation;

9.5 Display mode: High brightness digital tube display;

9.6 Parameter settings: Input over/under range alarm, automatic reset of power undervoltage, automatic reset of abnormal operation;

9.7 Control mode: upper and lower limit alarms can be selected;

9.8 Control setpoint: The control setpoint and hysteresis value can be freely set within the full range;

9.9 Temperature compensation: 0~50 ℃ temperature automatic compensation.

9.10 Suitable for Underground Lamp Outer Diameter: 50~300

3.1 3、 Instructions for use:

Preparation before the experiment1= 1 /* Arabic

Connect the power supply and check if the components on the console are powered on properly;

The hydraulic station is connected to a voltage of 380V~. (Attention should be paid: The equipment is connected in a Y-shaped manner when powered on. If the motor idles and the oil cylinder does not move after connecting the power supply, it indicates that the motor is reversing. At this time, only any 2 of the 3-phase wires need to be connected.)

2. Choose a suitable size of lamp support and place the sample inside the lamp support.