Bevel planetary gear mechanism applied to stand mixer

A bevel planetary gear mechanism applied to a stand mixer, comprising:

• a spindle (1), a bevel planetary gear mechanism (12) and a kneading hook (6),
• wherein, the bevel planetary gear mechanism (12) comprises a center bevel gear (2), a first bevel planetary gear (10), a second bevel planetary gear (3), a third bevel planetary gear (4), an internal bevel gear (5) and a bevel planetary gear bracket (11);
• wherein, the center bevel gear (2) is mounted on the spindle (1), and the end of the spindle (1) extends downwardly to the inside of the bevel planetary gear bracket (11) positioned at the lower side of the center bevel gear (2);
• the first bevel planetary gear (10), the second bevel planetary gear (3) and the third bevel planetary gear (4) are rotatablely mounted on the bevel planetary gear bracket (11), and the first bevel planetary gear (10), the second bevel planetary gear (3) and the third bevel planetary gear (4) are all engaged with the center bevel gear (2);
• the internal bevel gear (5) surrounds the first bevel planetary gear (10), the second bevel planetary gear (3) and the third bevel planetary gear (4) and are engaged with such three gears;
• a stirring shaft (13) penetrates through the inside of the first bevel planetary gear (10) and rotates together with the first bevel planetary gear (10), and the inside of the first bevel planetary gear (10) is fixed relative to the stirring shaft (13) through a spring (7) positioned on the top of the inside of the first bevel planetary gear (10) and a clamp spring (9) positioned under the first bevel planetary gear (10);
• one end of the kneading hook (6) extends into the inside of the stirring shaft (13), and steel balls are provided between the top of the inner side of the stirring shaft (13) and one end of the kneading hook (6).