LG-TB-500 Contact current collector shoe wall plate weak connection special impact testing machine

impact testing machine

The TB-500 contact current collector shoe wall weak connection special testing machine is used to determine the impact characteristics of the weak connection device of the contact current collector shoe wall board for high-speed railways and high-speed trains, so as to judge that the weak connection device of the shoe wall board is hit by sufficient dynamic load. When it is lowered and broken, the automatic protection lowering bow detection system is reliable and stable.This machine uses the way that the difference between the potential energy before the impact of the pendulum and the remaining potential energy after the impact is displayed on the dial.

The special impact tester adopts electrical appliances to control the automatic swing, impact and placement, which is easy to operate and has high working efficiency. After the sample is punched, the remaining energy is used to automatically raise the pendulum and prepare for the next impact test.

The host of the machine is made of cast steel, which makes it rigid and stable during the whole test process, with strong impact resistance, not easy to deform, accurate test results and long service life. The use of high torque clutch and high power motor makes it more stable and vibration-free when taking and placing the pendulum.

Adjustable support base for the weak connection device of the shoe wall of the contact current collector: The installation height and the strike center of the carbon slide can be adjusted according to the size of the shoe wall of the contact current collector. This machine meet the national standard TB/T 1842.3-2002 "Electric Locomotive Pantograph Sliding Plate Part 3 Carbon Skateboard" and TJ/CL 328-2014 "EMU Carbon Skateboard Interim Technical Conditions" 6.12 Automatic bow lowering sensor device impact characteristics requirements.

The main technical parameters

1 Impact energy 500J

2 Scale range and division value Energy range: 0-500J

Division value per cell: 5J

3 Pendulum force value (impact constant) 0-500J M=267.9492N.m

4 Pre-lift angle of pendulum 150°

5 Distance from the rotation center of the pendulum shaft to the impact point (the center of the sample) 800mm

6 Impact speed 5.4m/s

7 Impact hammer surface size 100x50mm (flat hammer)