Tread cleaning device and friction block thereof

The invention discloses a tread cleaning device and a friction block thereof. The friction block comprises a friction block support, a plurality of springs are arranged on the friction block support, one end of each spring is fixed to the friction block support, the other end of each spring is provided with a friction body, and the surfaces, away from the springs, of all the friction bodies are located on the same cambered surface. According to the friction block, a traditional friction block body is designed into the multiple independent friction bodies, so that thermal stress concentration during operation of the friction block can be dispersed, transverse fatigue cracks of the friction block in the using process are prevented, the multiple friction bodies are arranged on the same arc face through the springs, and it can be guaranteed that the friction block is in close contact with a wheel tread. 本发明公开了一种踏面清扫装置及其摩擦块，该摩擦块包括摩擦块支架，所述摩擦块支架上布置有多根弹簧，每一所述弹簧的一端固定在摩擦块支架上，而弹簧的另一端安装有摩擦体，且所有摩擦体背离弹簧的表面均位于同一个弧面上。本发明将传统的