【正文】 論上的錯誤。除了敬佩王老師的專業(yè)水平外，他的治學嚴謹和科學研究的精神也是我永遠學習的榜樣，并將積極影響我今后的學習和工作。圖書館、機械學院 CAD/CAM網絡中心、也為我們提供了許多幫助，還有許多同學也和我一起探討問題，給予了我很大的啟發(fā)和幫助，在次一并表示衷心的感謝！感謝陜西理工學院對我這四年的培養(yǎng)，感謝各位老師在學習生活中給予我的幫助！感謝答辯組的各位老師對我的指導和教誨，請讓我對所有的老師，同學說聲謝謝！衷心的祝愿陜西理工學院越辦越好，祝機械工程學院越來越強！參考文獻[1] 王寧俠,王鴻,王乃信. ，202211, 第 19卷 第六期. 摘要：闡述了少齒數漸開線圓柱齒輪機構的傳動特點，論述了漸開線共軛齒廓的嚙合點及其特點，闡明了變位系數，螺旋角和幾何尺寸的確定和計算，從而奠定了少齒數漸開線圓柱齒輪機構機構學的理論基礎.[2] 張國海,王保民,蔣學全. 少齒數齒輪傳動接觸強度的研究. 機械設計，20228，第 21卷 第 8 期. 摘要：針對少齒數漸開線齒輪副嚙合的特點，找出了符合實際的應力計算點，由此建立的接觸強度的經驗公式，公式中定量計入了綜合滾動速度和齒面相對滑動系數的影響.[3] 王知行, ，1978 年 Z1期. 摘要：變位齒輪設計的關鍵問題是正確地選擇變位系數，如果變位系數選擇得當，可使齒輪的承載能力提高 20—30%；假若變位系數選擇不當，的方法，是根據齒輪的破壞情況，抓住主要矛盾, 并以“封閉圖”作為研究工具而得出的.[4] 羅總則. 機械設計課程設計手冊. 高等教育出版社, 202205, 第 3 版.[5] 鄒貴平. 基于Pro /. 20222, 第 24 卷 第2 期摘要: 介紹了一種基于Pro /E齒輪三維特征造型和利用Pro /計方法可使設計人員方便快捷地實現齒輪的三維特征造型設計,從而提高設計效率.[6] 周銘,蘇大鵬,馬亮. 少齒數齒輪傳動. 機械工程師，20223.[7] 朱景梓. 漸開線齒輪變位系數的選擇．人民教育出版社，198211.[8] 龔湘義. 機械設計課程設計圖冊. 高等教育出版社, 198905, 第 3 版.[9] 郭克強. 漸開線變位齒輪傳動. 高等教育出版社, 198509.[10] 朱景梓. 漸開線外嚙合圓柱齒輪傳動. 國防工業(yè)出版社, 199012.[11] 陳志偉,彭小山,張智明. 基于 Pro/E的齒輪參數化的研究. 機電產品開發(fā)與創(chuàng)新, 202201, 第 20 卷 第 1 期.[12] 孫桓. 機械原理. 高等教育出版社, 202205, 第 6版.[13] 濮良貴. 機械設計. 高等教育出版社, 202206, 第 7版.[14] 中國知識資源總庫——CNKI 系列數據庫.[15] 林清安編著，Pro/ENGINEER Wildfile ，—北京：電子工業(yè)出版社，.外文翻譯GEAR AND SHAFT INTRODUCTIONAbstract: The important position of the wheel gear and shaft can39。t falter in traditional machine and modern wheel gear and shafts mainly install the direction that delivers the dint at the principal axis passing to process to make them can is divided into many model numbers, useding for many situations we must be the multilayers to the understanding of the wheel gear and shaft in many ways .Key words: Wheel gear。ShaftIn the force analysis of spur gears, the forces are assumed to act in a single plane. We shall study gears in which the forces have three dimensions. The reason for this, in the case of helical gears, is that the teeth are not parallel to the axis of rotation. And in the case of bevel gears, the rotational axes are not parallel to each other. There are also other reasons, as we shall learn.Helical gears are used to transmit motion between parallel shafts. The helix angle is the same on each gear, but one gear must have a righthand helix and the other a lefthand helix. The shape of the tooth is an involute helicoid. If a piece of paper cut in the shape of a parallelogram is wrapped around a cylinder, the angular edge of the paper bees a helix. If we unwind this paper, each point on the angular edge generates an involute curve. The surface obtained when every point on the edge generates an involute is called an involute helicoid.The initial contact of spurgear teeth is a line extending all the way across the face of the tooth. The initial contact of helical gear teeth is a point, which changes into a line as the teeth e into more engagement. In spur gears the line of contact is parallel to the axis of the rotation。 in helical gears, the line is diagonal across the face of the tooth. It is this gradual of the teeth and the smooth transfer of load from one tooth to another, which give helical gears the ability to transmit heavy loads at high speeds. Helical gears subject the shaft bearings to both radial and thrust loads. When the thrust loads bee high or are objectionable for other reasons, it may be desirable to use double helical gears. A double helical gear (herringbone) is equivalent to two helical gears of opposite hand, mounted side by side on the same shaft. They develop opposite thrust reactions and thus cancel out the thrust load. When two or more single helical gears are mounted on the same shaft, the hand of the gears should be selected so as to produce the minimum thrust load.Crossedhelical, or spiral, gears are those in which the shaft centerlines are neither parallel nor intersecting. The teeth of crossedhelical fears have point contact with each other, which changes to line contact as the gears wear in. For this reason they will carry out very small loads and are mainly for instrumental applications, and are definitely not remended for use in the transmission of power. There is on difference between a crossed helical gear and a helical gear until they are mounted in mesh with each other. They are manufactured in the same way. A pair of meshed crossed helical gears usually have the same hand。 that is ,a righthand driver goes with a righthand driven. In the design of crossedhelical gears, the minimum sliding velocity is obtained when the helix angle are equal. However, when the helix angle are not equal, the gear with the larger helix angle should be used as the driver if both gears have the same hand.Worm gears are similar to crossed helical gears. The pinion or worm has a small number of teeth, usually one to four, and since they pletely wrap around the pitch cylinder they are called threads. Its mating gear is called a worm gear, which is not a true helical gear. A worm and worm gear are used to provide a high angularvelocity reduction between nonintersecting shafts which are usually at right angle. The worm gear is not a helical gear because its face is made concave to fit the curvature of the worm in order to provide line contact instead of point contact. However, a disadvantage of worm gearing is the high sliding velocities across the teeth, the same as with crossed helical gears.Worm gearing are either single or double enveloping. A singleenveloping gearing is one in which the gear wraps around or partially encloses the worm.. A gearing in which each element partially encloses the other is, of course, a doubleenveloping worm gearing. The important difference between the two is that area contact exists between the teeth of doubleenveloping gears while only line contact between those of singleenveloping gears. The worm and worm gear of a set hav