螺旋传动

This paper develops a mathematical model for the solution to the longitudinal tooth curve of an internal gear shaver based on the simplified principle for space transmission of a helical gear pair without flank clearance,and proposes a calculating approach of the profile modification of the grinding wheel to be used for grinding the longitudinal tooth curve of the shaver.

用简化的空间螺旋齿轮作无侧隙啮合传动的原理，建立了求解内剃齿刀齿向曲线的数学模型，并给出了修磨这种齿向曲线的盘形砂轮的廓形计算方法。

Firstly, the developing principles of the cylindrical internal helical gear are proposed through analyzing the movement and geometry requirements, which provides continuous contact between the mating gear surfaces. The tooth surface of the internal helical gear in the new gearing can be imagined as being generated by the normal section of the conjugated surface of the ball-tooth, moving along the radial projection of helix line of the tooth-root circle. Also, the proposed surface can be approximate tangent to the conjugated surface of the ball-tooth along a spacial curve.

首先，通过分析保证行星轮作螺环运动时与内斜齿轮实现连续啮合传动的运动和几何条件，提出了圆柱内斜齿轮齿面的两种形成原理：即由球齿运动包络曲面的法截面沿其齿根圆螺旋线在径向的投影进行拓展所形成的内齿面，以及与球齿运动包络曲面呈近似相切接触的等螺距齿面构成的内齿面。

This technology is mostly to change the primary harvestry equipment that composed by three drive parts of dial-standing grain wheel,to-and-fro incise and agitate-dragon transportation into a helix agitate-cut equipment.It can predigest most of the structure,reduce the cost and advance the dependability.

项目简介：本技术主要是将原来收割机由拨禾轮，往复切割，搅龙输送三个传动部分组成的收割装置变为了一个螺旋搅切装置，可大大简化结构，降低成本，提高可靠性。

Spiral bevel and hypoid gears are important components applied to transfer drive in modern gearing.

螺旋锥齿轮是现代机械动力传动系统中用来传递动力和运动的重要装置。

Transmission categories: spiral lifts, cross steering gear, worm gear reducer, single / three-phase AC motors, variable frequency motors, vibration motors, DC DC motors, brake motors, gear motors, variable speed drive without paragraph, brake / clutch, screw , slide, precision devices, such as partition..

一。 传动类：螺旋升降器、十字转向器、蜗轮减速机、单/三相交流马达、变频马达、振动马达、DC直流马达、刹车马达、齿轮减速马达、无段变速机、刹车/离合器、丝杆、滑轨、精密分割器等。

At here, based upon designing idea of the shearing planes of left and right two shears are at ±45° with respect to main transmission plane and the combination with changeable structure, the shearing mechanism of two mutually twisted flat screw wires was designed.

在此，基于左右两把剪刀的剪切平面相对于主传动平面成±45°，以及与变结构相结合的设计理念，设计出了两根互绕扁螺旋钢丝的剪切机构。

The drum,screw, screen changer and die head are made of high quality alloyed steel (38CrMOAIA) with high hardness, strong corrosion resistance and long operating life after nitrogen treatment.

螺杆、料筒、换网器、模头均选用优质合金钢（38CrMoAIA），经氮化处理，硬度高、防腐能力强、使用寿命长；模头为衣架式支管递减型，流道利于熔料流动、无滞留现象，片材厚度均匀；压光琨内采用螺旋往复式水槽，水循环冷却，效果极佳；模头、换网器、料筒温度分段控制，整机传动同步运行。

The key components such as drive device, feed equipment and combination roll of coal briquetting machine were improved. The bridge-type synchronous gear-drive device was designed to implement the concession of driven shaft in order to protect the costly roll. The helixes feed equipment was used to improve the plasticity of material to ensure the strength of products.

采用过桥齿轮传动实现从动型轮轴的退让，以保护价格较高的型轮部件；采用螺旋强制给料机构提高成型前物料的密度和可塑性，以保证型煤成品的强度；采用型槽与型齿对应配置的型窝，在获得同样强度的型球条件下降低成型压力，减小动力消耗。

In order that the conveyer belt has certain tension, and will not slip due to the friction generated between the conveyer belt and the transmission drum, screw take-up device can be adopted to adjust the conveyer belt tension.

为了使输送带具有一定的张力，保证输送带和传动滚筒间产生摩擦力使输送带不打滑，可以通过螺旋拉紧装置调整输送带张力。

This text design one available in grindings the cylinder spiral slot the X and Y direction advance to the organization , has carried on detailed mechanical design and transmission system design to the organization to X and Y advance .

本文设计了一台可用于磨削圆柱体螺旋槽面的数控机床的 X 、 Y 向进给机构，对 X 、 Y 向进给机构进行了详尽的机械设计、传动系统设计。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。