In the modern automobile industry, the brake system is one of the core components to ensure driving safety. As a key component of the drum brake system, the performance of the brake shoe directly affects the braking effect and driving safety of the vehicle. With the continuous expansion of the global automobile market, the demand for brake shoes is also growing, especially in the field of commercial vehicles and heavy machinery, where its importance is more proeminente .
Princípio de trabalho do sapato de freio
Brake shoes are usually installed in drum brake systems. When the driver steps on the brake pedal, the hydraulic system pushes the brake shoes to expand outward, so that they are in close contact with the inner wall of the brake drum, and the friction slows down the rotation of the wheel, thereby achieving the braking effect. Compared with disc brake systems, drum brake systems are more common in heavy vehicles because of their Estrutura mais simples, força de frenagem mais forte e menor custo .
Materiais e desempenho de sapatos de freio
The performance of brake shoes depends largely on their manufacturing materials. Traditional brake shoes are mostly made of asbestos materials, but as asbestos is harmful to human health, it has been banned in most countries. Modern brake shoes are mainly made of semi-metal, ceramic or organic composite materials, which not only have excellent wear resistance and high temperature resistance, but also can reduce braking noise and dust Poluição .
Os sapatos de freio semi-metal são amplamente utilizados em veículos pesados devido à sua alta resistência e bom desempenho de dissipação de calor; Os sapatos de freio de cerâmica estão gradualmente se tornando uma escolha popular no mercado de carros de passageiros devido ao seu baixo ruído e vida longa; Os sapatos de freio compostos orgânicos ainda estão no mercado em alguns veículos econômicos devido à sua proteção ambiental e conforto .
Manutenção e substituição de sapatos de freio
The℃of wear of brake shoes directly affects the braking effect, so regular inspection and maintenance are essential. Generally speaking, when the thickness of the brake shoes drops below 2 mm, they need to be replaced in time, otherwise it may lead to longer braking distance and even cause safety accidents. In addition, the installation quality of the brake shoes also directly affects their performance. It is recommended that professional Os técnicos os substituem para garantir a confiabilidade do sistema de frenagem .
Com o avanço contínuo da tecnologia automobilística, os materiais e processos de fabricação dos sapatos de freio também são otimizados continuamente . no futuro, mais eficiente e ambientalmente amigável, os sapatos de freio se tornarão o mainstream do mercado, fornecendo proteção mais forte para a segurança global do tráfego rodoviário .}}}}}}}}}}}}
