Chapter 24 Braking system 同©大学 TONGII UNIVERSTTY Dual Two Leading Shoe Brake >When backing,the supporting point and action point of promoting force exchange,this generates a same brake efficiency of marching. supporting pim brake drum brake shoe brake drum supporting pin wheel cylinder wheel cylinder piston Working Principle of Dual two leading shoe brake Working Principle of Dual two leading shoe >Structural Features:All the fixing parts on the brake plate e.g.Brake shoe, wheel cylinder reset spring )are all double,they are arranged axial symmetrically and central symmetrically,the two ends of the two brake shoes are floating supported,the Circumferential positions are also floating
Chapter 24 Braking system Dual Two Leading Shoe Brake When backing, the supporting point and action point of promoting force exchange, this generates a same brake efficiency of marching. Structural Features: All the fixing parts on the brake plate ( e.g. Brake shoe、 wheel cylinder 、 reset spring ) are all double, they are arranged axial symmetrically and central symmetrically, the two ends of the two brake shoes are floating supported, the Circumferential positions are also floating
Chapter 24 Braking system 同©大学 TONGII UNIVERSTTY Dual Two Leading Shoe Brake brake shoe brake drum rt pting brake plate 13 wheel cylinder adjusting support support brake shoe Dual two leading shoe brake The front wheel brake of Red Flag CA7560
Chapter 24 Braking system The front wheel brake of Red Flag CA7560 Dual Two Leading Shoe Brake
Chapter 24 Braking system 日儕大学 TONGII UNIVERSTTY Two Trailing Shoe Brake >When wheels rotate forward,the brake shoes are trailing shoe. >Features:the brake efficiency when marching is lower than wheel cylinder LTSB DLSB,but its stability of brake efficiency is good. brake drum >The fixing parts of TLSB brake shoe DLSB,DTSB are arranged central symmetrically.They supporting pin are balanced typed brake. Dual Two Trailing Shoe Brake
Chapter 24 Braking system Two Trailing Shoe Brake When wheels rotate forward, the brake shoes are trailing shoe. Features: the brake efficiency when marching is lower than LTSB & DLSB，but its stability of brake efficiency is good. The fixing parts of TLSB、 DLSB、DTSB are arranged central symmetrically. They are balanced typed brake
Chapter 24 Braking system 日儕大学 TONGII UNIVERSTTY Unidirectional Servo Brake >Features:The two brake shoes has only one single piston wheel cylinder, the promoting force of second brake Support shoe is from the pushing force first pin brake shoe exerts on the post bar. >The braking torque of the 2nd brake shoe is bigger than that of the 1st brake shoe. >With the same-sized brake drum and the same friction plate,the two brake 53 shoes are both leading shoes when marching.The brake efficiency is better than LTSB TLSB,but the braking Post bar force is very small when backing
Chapter 24 Braking system Unidirectional Servo Brake Features: The two brake shoes has only one single piston wheel cylinder, the promoting force of second brake shoe is from the pushing force first brake shoe exerts on the post bar. Post bar Support pin With the same-sized brake drum and the same friction plate, the two brake shoes are both leading shoes when marching. The brake efficiency is better than LTSB & TLSB, but the braking force is very small when backing. The braking torque of the 2 nd brake shoe is bigger than that of the 1 st brake shoe
Chapter 24 Braking system 圖月儕大学 TONGII UNIVERSTTY Unidirectional Servo Brake 色 Working Principle of Unidirectional Servo Brake
Chapter 24 Braking system Unidirectional Servo Brake