ϰ � � � � ˼ � � � �

2.1 � � � 2.29 ͼ б � ע � � � � � � � � � � � ڿ ס � ϳ � � � frame � � � � � ȼ ӹ � � � ʽ � � � � � ˶ � � � � � � � � ˶ � � � � � ͺ ϳ � � ˶ � � � � � � � � � ɱ � � frame � � � ӹ � � � � frame � Ѽ ӹ � � � � tsou � � � � � � Ե � � � � �

ͼ 2.29 � � � � � � � � � � ʽ

A) � � � � b) � � � ڿ � c) ϳ � � � � d) � � � �

2.2 � � � � � 㹫 � ƺ � � � � � � � � � � � � � ļ � � � � � � ݣ �

2.3 � � ͼ 2.30 � � ʾ � � � � � �= 90 o � � Բ � � � � � �= 45 o � � ͷ � � � � � � � � � � ƽ � Peng � � ƽ � � � ע � &western � ϵ � � � � � � Ӧ � � � argument Ƕ ȣ � � � ָ � � � � � � � ߵ � ǰ � � � frame � � � frame � � � � � frame � � � � � � � С � � � � � � � � м � � � � � � lambda. � a � � � � ˳ ߴ � Ϊ � � � � X � � � X ߶ � lOOmmXl6mmX25mm

� � � � � �. � � � � � �. � � � � � � � �, gears, gearboxes 1)= 90 o � � Բ � � � � � ļ � � argument Ƕ ȣ �= 90 o � �= 15 o � �== 8 o � �= 5 o � �= 15 o � �

� � 2 � �= 45 � � ͷ � � � � � Ľ Ƕ ȣ �== 45 o � �= 5 o � �== 6 o � �= 3 o � �

2.4 � � � ߵ Ĺ � � � � Ƕ Ⱥ ͱ � ע � Ƕ � � � ʲ o � � � � Ӱ � 쵶 � ߹ � � � � Ƕ ȵ � � � Ҫ � � � � � � � � Щ � �

2.5 � Ե � � ߲ � � � � � � � Щ � � � � Ҫ � �?� � � Ƕ Ե � � ߵ � � � � � � � � � � seem � Ӱ � 죿

ͼ 2.30 � � � ֳ � � �

A)= 90 � � � � Բ � � � � b)= 45 � � � � ͷ

2.6 � Ա Ƚ � � � ͨ � � � ٸ ֺ ͸ � � � � ܸ � � ٸ ֵ � � � � ܡ � � � ; � � � � Ҫ � � ѧ � ɷ ֣ � � � � ٳ � � � � ֳ � � � � ƺ š �

2.7 � Ա Ƚ � YG � � � � YT � � Ӳ � ʺ Ͻ � � � � � ܡ � � � ; � � � � Ҫ � � ѧ � ɷ ֣ � � � � ٳ � � � � ֳ � � � � ƺ š �

2.8 � � � � � � � � ; ѡ � o � � ߲ � � � � � � � � � ƺ ţ � (� � � �. � � � � � �. � � � � � � � �, gears, gearboxes 1) 45 � ֶ ͼ � � ֳ � � � 2 � � HT200 � � � � � � � � � �

(3) � � � پ � � � � Ͻ � � � ϸ ˣ � (4) � � � پ � � � � � � ʸ ֳ � � ᣻ (5) � � � پ � � � � � � � � � � Ͻ � � � � � � 6 � � � � � ٳ � � � � � Ӳ � � � ᣻ (7) � ӹ � 65 HRC � � Ӳ � � � �

2.9 � � � � � � м � � � � � Σ � ͨ � � � ɰ � � � м � � Ϊ � � � � � � � � � � � м � � � � � � � ӹ � � seem � Ӱ � 죿

2.10 � � � � � � м � � � the awesome � � � � � � � � � � � � ӹ � � � Ӱ � � � Լ � � � С � ͱ � � � ʱ Ӧ � � ȡ � � � � Ҫ � � ʩ � �

2.11 ʲ o � ǵ � � � � � � o �?� � � � � � � o � � 뵶 � � � � � � � seem ι � ϵ?

2.12 ˵ � � ǰ � Ǻ ͺ � ǵ Ĵ � С � � � � � � � � � ̵ � Ӱ � 졣

2.13 ˵ � � � � � � ǵ � � � � � a

2.14 � � � � Һ � � � � Ҫ � � � � � � ʲ o � � � � � � � � � � Һ � � � ļ � � �?� � � ѡ � �?