Wood planing machine

A wood planing machine comprising:

• a bed body having left and right mounting sides 23 spaced apart from each other in a first transverse direction, and feed-in and take-out sides disposed to be spaced apart from each other in a longitudinal direction;
• left and right mounting frames disposed on and extending uprightly and respectively from said left and right mounting in a second transverse direction which is transverse to both said first transverse and longitudinal directions;
• left and right pairs of lifting rods uprightly disposed on said left and right mounting sides respectively, each pair of said lifting rods being disposed to be spaced apart from each other in said longitudinal direction, and having a pair of lower supported ends mounted rotatably on a respective one of said left and right mounting sides, and a pair of upper supported ends mounted rotatably relative to a respective one of said left and right mounting frames;
• a working table disposed on said bed body and defining a planing path in said longitudinal direction, said working table having four lugs disposed at positions corresponding to said left and right pairs of lifting rods, each of said lugs being sleeved on and being movable to ascend or descend relative to a corresponding one of said lifting rods when the corresponding one of said lifting rods is rotated relative to both the respective one of said mounting sides and the respective one of said mounting frames;
• feed-in and take-out shafts respectively disposed above said feed-in and take-out sides, and having first and second left and right ends respectively journalled on said left and right mounting frames and oriented in said first transverse direction so as to be spaced apart from said working table in said second transverse direction;
• a tool mounting shaft disposed between said feed-in and take-out shafts, and having third left and right ends respectively journalled on said left and right mounting frames and oriented in said first transverse direction;
• a cutting tool disposed on said tool mounting shaft;
• a motor disposed under said bed body, and having an output shaft with a first coupling end;
• a first transmission belt trailed over said first coupling end and one of said third right and left ends to transmit rotation of said output shaft to said tool mounting shaft;
• a speed reduction gear and transmission belt assembly disposed to couple said first coupling end with said first and second left and right ends so as to synchronously rotate said feed-in and take-out shafts at a reduced speed;
• and
• first biasing member for biasing said feed-in and take-out shafts toward said working table in said second transverse direction when said feed-in and take-out shafts are synchronously rotated relative to said mounting frames.