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变速器外文文献

Gearbox shell

In order to reduce the internal friction parts caused by the wear and power loss, infuse lubricating oil must be in the shell and the splash lubrication lubrication by the gear pair, the shaft and bearing parts of the surface of the work. Therefore, the shell side of the filler, at the bottom of the drain plug, oil level height refueling by position control. On the first axis constant mesh gear and the second axis of three radial oil hole is drilled on the gear, reverse gear and the intermediate shaft middle often meshing gear wheel hub face has a radial groove, so that lubrication in place of needle roller bearings. To prevent lubricating oil from the first clearance between shaft and bearing cap into the clutch and affect the friction performance, installation of the oil seal assembly within the bearing cover, there are back into the groove in the bearing cover inner hole, can prevent oil spills. In order to prevent the lubricating oil flowed from the second shaft backend. After the transmission in the bearing cover is equipped with oil seal assembly. In each of the bearing cover, back cover, cover, such as shell before and after the combination of surface loading seal gaskets, and the sealing glue, in order to prevent oil spills. To prevent transmission to work due to the oil temperature, pressure and oil leakage phenomenon, after in shift gear and transmission bearing cover is equipped with vent plug

According to different transmission structure form, the gearbox shell three axis and two axes

Engine usually by cylinder and flywheel shell or the elastic support on the gearbox (also known as mount) supported on the frame. Support method in engine supports two 3 support and 4.

Three-point support can decorate before 2 one before or after a two, after some engine support is bearing on the front two strong point is located in the crankcase, behind a strong point on the gearbox (e.g., Beijing 492 qa powertrain), there are in the form of a second before three support (such as liberation CA6102 powertrain).

Using supported at four o 'clock, before and after each have two points.

Engine on the frame of the bearing is elastic, this is to reduce the frame of the torsional deformation of engine in the car, and reduce the powertrain vibration and noise to the chassis and crew

The elastic support of engine operation, especially in the work is not stable, such as low speed or overload), Angle of lateral vibration can occur, so various tubes and rods are connected to the engine, such as structure must ensure that the engine vibration does not undermine their normal work, if use the hose. In order to prevent when automobile brake or speed due to deformation of the elastic element engine longitudinal displacement is too large, there are fashion with special tie. One end of the pull rod connected to the frame longitudinal beam, the other end connected to the engine, equipped with rubber bushing at two ends

-------《p opular Mechanics》

变速器壳体

为了减少内摩擦引起的零件磨损及功率损耗,须在壳体内注入润滑油,采用飞溅润滑方式润滑各齿轮副、轴与轴承等零件的工作表面。因此,壳体一侧有加油口,底部有放油塞,

油面高度由加油口位置控制。在第一轴常啮合齿轮和第二轴上的三档齿轮上钻有径向油孔,倒档中间齿轮和中间轴常啮合传动齿轮的轮毂端面开有径向油槽,以便润滑所在部位的滚针轴承。为防止润滑油从第一轴与轴承盖之间的间隙流入离合器而影响其摩擦性能,在轴承盖内安装了油封总成,轴承盖内孔中有回油槽,可以防止漏油。为防止润滑油从第二轴后端流出。在变速器后轴承盖内装有油封总成。在各轴承盖、后盖、上盖、前后壳体等的结合面处装入密封垫片,并涂密封胶,以防止漏油。为防止变速器工作时由于油温、压力升高而造成润滑油渗漏现象,在变速机构座及变速器后轴承盖上装有通气塞

根据变速器结构形式的不同,变速器壳体有三轴式和两轴式之分

发动机一般通过缸体和飞轮壳或变速器壳上的弹性支座(又称悬置)支撑在车架上。发动机的支撑方法一般有三点支撑和四点支撑两种。

三点支撑可布置成前二后一或前一后二,有的发动机的支撑是前面两个支撑点位于曲轴箱的支座上,后面一个支撑点在变速器壳上(如北京492QA型动力总成),也有采用前一后二的三点支撑形式(如解放CA6102型动力总成)。采用四点支撑时,前后各有两个支撑点。发动机在车架上的支承是弹性的,这是为了降低在汽车行驶中车架的扭转变形对发动机的影响,以及减少动力总成传给底盘和乘员的振动和噪声弹性支承的发动机运转时,特别是在工作不稳定(如低速或超载)时,可能发生横向角振动,因此与发动机相连的各种管子和杆件等结构必须保证在发动机振动时不致破坏他们的正常工作,如采用软管。为了防止当汽车制动或加速时由于弹性元件的变形而导致发动机纵向位移过大,有时装用专门拉杆。拉杆的一端与车架纵梁相连,另一端与发动机相连,两端连接处装有橡胶衬套。

-----《大众机械》