1、了解升降平台模型，并记录其编号。分析机械的实际构造和运动情况，查明该机构由多少个构件组成，找出机架及原动件，并根据相连接的两构件间的接触情况及相对运动的性质，确定各个运动副的类型，并依次标上字母。
Learn lifting platform model, and record its number. The actual construction and analysis of mechanical movement, identify the agency by the number of components that identify the rack and the original moving parts, and the nature of the exposure and the relative motion of the two components are connected between each deputy campaign to determine the type, and sequentially labeled with letters.  

2、确定构件数目，将升降平台摸型缓慢地运动，从原动件开始，沿着运动的传递路线依次在各构件上标上数字编号。循着运动的传递路线分析该机械原动部分的运动如何经过传动部分传递到工作部分。
Determine the number of members, the lifting platform slowly to touch-type motion, starting from the original mover, moving along the relay route on each member in turn marked figures. Follow the movement of the transmission line analysis of how the movement of the mechanical moving parts after the original transmission parts delivered to the working part.   

3、仔细观察各构件间的接触情况及相对运动的特点，用规定的符号将各运动副表示出来，用直线或曲线将同一构件上各运动副元素连接起来，用箭头标出机构原动件在图示位置时的运动方向，绘制出所要画的机构运动简图，选择与机械的多数构件的运动平面相平行的平面作为绘制机构运动简图的投影面。
Features and careful observation of the contact condition of the relative movement between the members, with a predetermined symbol vice movements represented by a straight line or a curve motion of each the sub-elements are connected on the same member, indicated by an arrow in FIG original moving parts mechanism position shown in the direction of movement, and draw the kinematic diagram to be drawn, sport plane selection and mechanical components of most parallel kinematic plane as drawn sketch of the projection surface. 

4、 分析升降平台运动的确定性。计算升降平台的自由度数，并将结果与实际升降平台的原动件数相对照，若与实际情况不符，要找出原因及时改正。
Analysis lifting platform movement certainty. Number of degrees of freedom is calculated lifting platform, the original number of the movable member and the results contrasted with the actual lifting platform, if inconsistent with the actual situation, to find out the reasons for timely correction.

5、选择适当的比例尺，根据该机械的运动尺寸，确定各运动副之间的相对位置，
Select the appropriate scale, according to the mechanical motion of size, to determine the relative positions of deputy campaign between