| 摘要 |
FIELD: mechanical engineering; brakes. SUBSTANCE: shoe brake has support plate 10 with two shoes 12, 14 installed for sliding. Each shoe has plate 12a, 14a and rim 12b, 14b. Face surface of rim opposite to drum 20 has friction lining 16, 18 for friction engagement with drum 20 under action of hydraulic drive 22 acting on first end of plate 12a, 14a of shoes 12, 14; each shoe has variable length gasket 40 which defines distance between shoes 12 and 14. Gasket is arranged near hydraulic drive 22. Second end of shoe plate thrusts against support member 28 reliably secured on support plate 10. According to invention, brake has mechanical drive 50 acting between one of shoes 12 and first end 66a of force transmitting device 66 secured for sliding on other shoe. EFFECT: enlarged operating capabilities. 1 dwg |
