[摘要]新疆土石方工程内挖掘机的大小臂区分。挖掘机大小臂是挖掘机的一种工作装置，主要作用是用来支配挖斗的挖掘、装车等动作，与机架相连的臂较大，所以俗称为大臂，其术语称作动臂，与挖斗相连的臂较小。
内挖掘机的大小臂区分。挖掘机大小臂是挖掘机的一种工作装置，主要作用是用来支配挖斗的挖掘、装车等动作，与机架相连的臂较大，所以俗称为大臂，其术语称作动臂，与挖斗相连的臂较小，所以俗称为小臂，术语称作斗杆，所以俗称它们为大小臂。加长臂挖掘机出租
Excavator arm is the size of a working device of excavator, the main role is to dominate the bucket digging, loading action, is connected with the stander arm is bigger, so called big arm, the term called boom, bucket arm connected with the smaller, so called small arms, term called the bucket rod, so commonly known as they are for the size of the arm.
挖掘机大臂的形状结构
The shape and structure of the big arm of excavator
反铲挖掘机大臂的形状，一般来讲都是有一定的弯位的，这样能较好的针对停机面以下的土壤进行强行挖掘，正铲挖掘机却一般都是直的，这样也能更好地针对停机面以上的土壤进行强行挖掘。其结构一般是箱体式的，上、下两块是盖板，侧面两块是墙板，相机架相连处是大臂座套，与动大臂缸杆相连处是大臂中套，与中缸筒相连处是中缸筒耳座，与小臂相连处是大臂钗。
Backhoe excavator arm shape, generally there is a certain amount of bend, so can better to stop the soil forced mining, shovel but is generally straight, so also can better to stop the mandatory mining soil. Its structure is generally box type,, two block is a cover plate, two side block wall, camera is connected at the big arm sleeve, and the movable arm cylinder rod connected place is big arm sleeve, which is connected with the cylinder position is in in cylinder ear seat, is connected with the small arm is the big arm chai.
挖掘机小臂的形状结构
The shape and structure of the small arm of excavator
不管是反铲或是正铲挖掘机的小臂，一般来讲都是直的，其结构主要是由上下盖板、左右墙板、中缸杆耳座、铲斗缸筒耳座、小臂后套、小臂中套、小臂前套等构件组成。
Whether the small arm backhoe or shovel, generally speaking is straight, the structure is mainly composed of upper and lower cover plate, left and right wallboard, in the cylinder rod ear seat, bucket cylinder lug, a small arm, a small arm after set in sleeve, sleeve and other components before the small arm.
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