Research On Improving Self-locking Capability Of The Seat Regulator Of TJL Style

The seat regulator of TJL style is the cycloid pinwheel planetary mechanism of 2K-H style. The dissertation analyzed the self-locking capability of the seat regulator through its efficiency, and gave the method to enhance the self-locking capability. When a center wheel is non-adjustable and another center wheel is the inputting part, in certain condition, the plus planetary mechanism of 2K-H style has the self-locking characteristic. Through the result of the efficiency experiment, the dissertation testified the self-locking capability of the seat regulator is unperfect,and pointed out the self-locking capability can be enhanced through decreasing the efficiency. Firstly, the dissertation deduced the formula of efficiency of the seat regulator the tooth profile weren't modified, which considered the efficiency with the structure, and found the eccentric distance, the radius of pinwheel and the tooth number are the factor influencing the efficiency. Secondly, the dissertation analysed the engaging characteristic of cycloid pinwheel the tooth profile were modified, and found the cycloid pinwheel have only one teeth engaging at the same time. The dissertation gave the calculating method of efficiency when one teeth engage, and analyzed what influence the engaging position have to the efficiency. Finally, the dissertation gave a modification method to cycloidal tooth profile, which can change the engaging position and decrease the efficiency. So the self-locking capability can be enhanced. As the result, the dissertation gave the new tooth profile, and calculated the efficiency of the seat regulator and testified the efficiency met the self-locking demand.