行星轮

Speed reducer: Be composed of a planet wheel and a pair of straight gear wheel.

2减速机构：由一个行星轮和一对直齿轮组成。

It is made up of a gearbox and moderate breeze gear wheel transmission that the SGZ1000/3000 type scraper conveyor cuts the cutting department, cut the electrical machinery of cutting department and put to fix up horizontally in the rocker arm, the power that the motor outputs leans on a round of transmission of department of gear wheel and planet round via the tertiary straight tooth, urge the cylinder to rotate finally.

SGZ1000/3000 型输送机传动部主要是由一个电动机、减速箱和液力偶合器组成，该输送机内横向布置，电动机输出的动力经由二级齿轮和一级行星轮系的传动，最后驱动链轮转动。

This design firstly fixed on design scheme and selected basic components, and besides, developed the reliability analysis of transmission system. The design of MG300/701-WD Shearer's cutting unit. It is made up of a gearbox and moderate breeze gear wheel transmission that the MG300/701-WD type mining machine cuts the cutting department, Cut the electrical machinery of cutting department and put to fix up horizontally in the rocker arm, The power that the motor outputs leans on a round of transmission of department of gear wheel and planet round via the tertiary straight tooth, Urge the cylinder to rotate finally.

本文首先确定了设计方案和选择了基本部件并开展了传动系统的可靠性分析，MG300/701-WD型采煤机截割部主要是由一个减速箱和四级齿轮传动组成，截割部电机放在摇臂内横向布置，电动机输出的动力经由三级直齿圆拄齿轮和行星轮系的传动，最后驱动滚筒旋转。

It is made up of a gearbox and moderate breeze gear wheel transmission that the MG400/900-3.3D type mining machine cuts the cutting department, cut the electrical machinery of cutting department and put to fix up horizontally in the rocker arm, the power that the motor outputs leans on a round of transmission of department of gear wheel and planet round via the tertiary straight tooth, urge the cylinder to rotate finally.

MG400/900-3.3D型采煤机截割部主要是由一个减速箱和四级齿轮传动组成，截割部电机放在摇臂内横向布置，电动机输出的动力经由三级直齿圆拄齿轮和行星轮系的传动，最后驱动滚筒旋转。

It is made up of a gearbox and moderate breeze gear wheel transmission that the MG250/591-WD type mining machine cuts the cutting department, cut the electrical machinery of cutting department and put to fix up horizontally in the rocker arm, the power that the motor outputs leans on a round of transmission of department of gear wheel and planet round via the tertiary straight tooth, urge the cylinder to rotate finally.

MG250/591-WD 型采煤机截割部设计主要是由一个减速箱和四级齿轮传动组成，截割部电机放在摇臂内横向布置，电动机输出的动力经由三级直齿圆拄齿轮和行星轮系的传动，最后驱动滚筒旋转。

It is made up of a moderate breeze gear wheel transmission that the MG400/920-WD type mining machine cuts the cutting department, cut the electrical machinery of cutting department and put to fix up horizontally in the rocker arm, the power that the motor outputs leans on a round of transmission of department of gear wheel and planet round via the tertiary straight tooth, urge the cylinder to rotate finally.

MG400/920-WD 型采煤机截割部主要是由四级齿轮传动组成，截割部电机放在摇臂内横向布置，电动机输出的动力经由三级直齿圆柱齿轮和一级行星轮系的传动，最后驱动滚筒旋转。

It is made up of a gearbox and moderate breeze gear wheel transmission that the MG200/456-AWD type mining machine cuts the cutting department, cut the electrical machinery of cutting department and put to fix up horizontally in the rocker arm, the power that the motor outputs leans on a round of transmission of department of gear wheel and planet round via the tertiary straight tooth, urge the cylinder to rotate finally.

MG200/456-AWD 型采煤机截割部主要是由一个减速箱和四级齿轮传动组成，截割部电机放在摇臂内横向布置，电动机输出的动力经由三级直齿圆拄齿轮和行星轮系的传动，最后驱动滚筒旋转。

Itis made up of a moderate breeze gear wheel transmission that theMG400/920-WD type mining machine cuts the cutting department, cutthe electrical machinery of cutting department and put to fix uphorizontally in the rocker arm, the power that the motor outputsleans on a round of transmission of department of gear wheel andplanet round via the tertiary straight tooth, urge the cylinder torotate finally.

MG400/920-WD 型采煤机截割部主要是由四级齿轮传动组成，截割部电机放在摇臂内横向布置，电动机输出的动力经由三级直齿圆柱齿轮和一级行星轮系的传动，最后驱动滚筒旋转。

Itis made up of a gearbox and moderate breeze gear wheel transmissionthat the MG400/900-3.3D type mining machine cuts the cuttingdepartment, cut the electrical machinery of cutting department andput to fix up horizontally in the rocker arm, the power that themotor outputs leans on a round of transmission of department ofgear wheel and planet round via the tertiary straight tooth, urgethe cylinder to rotate finally.

MG400/900-3.3D型采煤机截割部主要是由一个减速箱和四级齿轮传动组成，截割部电机放在摇臂内横向布置，电动机输出的动力经由三级直齿圆拄齿轮和行星轮系的传动，最后驱动滚筒旋转。

The present method shows that angular momentum of the planet wheel about a fixed axis is equivalent to transport angular momentum and relative angular momentum.

推导了行星轮的运动分解为随转动参考系的转动和相对于转动参考系的转动时，计算其对定轴动量矩的一个新方法。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。