• 1. constant speed unit: 等速机构 | 恒速传动装置
• 2. constant-speed drive unit: 定速驱动装置
• 3. constant speed drive unit: 恒速驱动装置

• 1.The constant speed transmission structure includes a constant speed rotating unit and a power transmission unit which is arranged inside the secondary stationary seat.
  定速转动单元包括呈转动穿于第一、二固定座并由动力传动单元驱动的转动内杆及套设于转动内杆外的固定外管；
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• 2.The constant speed rotating unit includes an inner rotating rod and an outer stationary pipe.
  转动内杆具有穿出第二固定座外的传动段及穿出第一固定座外的套置段；
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• 3.The utility model comprises a workbench, a first and a second fixing seats, a transmission mechanism of constant speed, the output shaft and a top fixing workpiece unit.
  定速转动单元包括呈转动穿于第一、二固定座并由动力传动单元驱动的转动内杆；其特征在于所述的转动内杆与输出之间设有皮带变速轮单元及调整单元；
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