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桂林市农机所研制的7CBY—1型手拖挂车液压制动器,去年11月通过区(省)级鉴定,区农机鉴定站颁发了推广许可证。该制功器,在原手拖挂车车轴制动器内加装北京212吉普车后轮制动分泵,制动总泵采用跃进汽车NJ—130的制动总泵。原有的制动鼓、制动蹄、固定盘均保留,仅对制动蹄、固定盘作了少许改动。原制动器内的制动凸轮不动,仍由原来的脚踏操纵系统控制,用来实现坡道停车;液压制动用于行车制动;凸轮机械制动(仍是两蹄制动)用来停车制动,或在发生油液渗漏时作辅助制动。因此,该制动器比较可靠、
Guilin Agricultural Machinery developed by the 7CBY-1 trailer trailers hydraulic brakes, passed the district (provincial) level in November last year, the District Agricultural Machinery Identification Station issued a promotion permit. The brake system, the original hand trailer trailer axle brake installed Beijing 212 jeep rear wheel brake cylinders, brake master cylinder used Yuejin NJ-130 brake master cylinder. The original brake drum, brake shoes, fixed plate are retained, only brake shoes, fixed plate made a slight change. The brake cams in the original brake are still in motion and are still controlled by the original foot control system to stop the ramp. Hydraulic brake is used for service braking. Cam mechanical brake (still two-foot brake) is used Parking brake, or auxiliary brake in the event of oil leakage. Therefore, the brake is more reliable,