A groove sawing machine hydraulic motor groove expansion device, which comprises a hydraulic motor, an output shaft, cutting knife, knife; the hydraulic motor is fixed on the saw blade arm, a hydraulic motor two output shaft end is provided with two knife, knife knife cut ends with soil. The utility model relates to a special trough expanding device for an underground cutoff wall chain type saw groove machine.
【技术实现步骤摘要】
【技术保护点】
1.一种锯槽机液压马达扩槽器,包括液压马达(1),输出轴(2),削土刀(3),刀架(4);其特征在于:液压马达固定在锯刀臂(9)上,液压马达两输出轴端设有两刀架(4),刀架两端设有削土刀(3)。
【技术特征摘要】
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