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国际:RUSH螺旋伞齿轮介绍一例

2012-09-11 | 浏览量: 934 常州天勋机械科技有限公司
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译文:

关于螺旋伞齿轮的技术信息
RUSH:GEARS公司。螺旋伞齿轮,人字齿轮作为直角需要高效率的驱动器。他们传递运动和动力之间的直角(90°)交叉轴的速度比从1:1(斜角)和1.5:1至6:1(坡口)。

斜面和等比伞形齿轮通常是削减20°压力角的长期和短期的增编所用的系统,以弥补低的齿数的齿轮和小齿轮的齿削弱。

只有等比伞形齿轮的相同数量的齿,俯仰和压力角,将一起操作。然而,如差分安排在一组,可以使用两个以上的等斜角。

伞形齿轮和小齿轮中列出的对,并与不同的节距,压力角或比率的齿轮是不能互换的。可取的做法是,当更换磨损的齿轮,以取代的完整集合,特别是在低比率集。

直齿锥齿形式:除了使用的长期和短期的附录系统,^全的的RUSH齿轮公司。人字齿轮和锥齿轮的尺寸切割的直齿锥齿形式产生。这种形式有一个本地化的齿轴承,齿轮的齿沿纵向运行,因为本地化的齿面接触,允许在脚趾或脚跟的牙齿没有重载的齿轮在装配和操作过程中的一些调整。

“MOUNTING:当锥齿轮和斜切齿轮安装轴是很重要的是^的90°的间隔,以消除误对准斜面或斜切。直齿锥齿形式将允许有轻微的调整,装配,但不应该被用来克服严重不对齐的轴。齿轮应安装在正确的距离从锥形或顶点中心中使用的轮毂的背面与止推轴承,吸收落后推力在这种类型的负债创建。

安装距离(“MD”)显示为每个斜切或锥齿轮的尺寸是其相配的齿轮的中心线的距离从一个齿轮的齿轮轮毂的后端。当正确安装到这个尺寸,这些齿轮的齿的端部,将彼此齐平。如果安装的距离过长的齿轮不会完全啮合,从而允许负载集中的间距线以上,并允许过多的齿隙。当距离过短,齿轮可以结合造成过多的热量,磨损和破损。

润滑:适当的润滑是这种类型的负债以确保更长的使用寿命的齿轮和轴承的必要因素。残余型纯矿物润滑油推荐用于暴露的资产负债,手或浴润滑。中等粘度油的封闭式齿轮,气温适中,在正常运行结果令人满意。重型压力或冲击载荷应用程序,其中中度至高度需要温和的极压(EP)润滑油。具体的建议可以由工程师在这一领域的许多oilcompanies。


原文:

 

RUSH GEARS inc. BEVEL and MITER GEARS are used as right angle drives where high efficiency is required. They transmit motion and power between right angle (90°) intersecting shafts at speed ratios from 1:1 (Miters) and 1.5:1 to 6:1 (Bevels).

Bevel and Miter Gears are usually cut 20° pressure angle with the long and short addendum system being used to compensate for tooth undercut in gears and pinions having low numbers of teeth.

Only Miter Gears of the same number of teeth, pitch and pressure angle, will operate together. However, more than two like miters may be used in a set such as a differential arrangement.

Bevel Gears and Pinions are listed in pairs and are not interchangeable with gears of a different pitch, pressure angle or ratio. It is advisable when replacing a worn gear to replace the complete set, particularly in low ratio sets.

CONIFLEX TOOTH FORM: In addition to using the long and short addendum system, most all RUSH GEARS inc. miter gears and bevel gear sizes are generated cut with the Coniflex tooth form. This form has a localized tooth bearing running lengthwise along the gear tooth and because of the localization of tooth contact permits some realignment of gears at assembly and during operation without heavy loading at the toe or heel of the tooth.

MOUNTING: When mounting bevel and miter gears it is important that shafts be exactly 90° apart to eliminate mis-alignment of bevel or miter. The Coniflex tooth form will permit a slight adjustment in assembly, but should not be used to overcome severely mis-aligned shafts. Gears should be mounted at the correct distance from the cone or apex center with thrust bearings used in back of the hubs to absorb the backward thrust created in this type of gearing.

The MOUNTING DISTANCE ("MD") dimension shown for each Miter or Bevel Gear is the distance from the back end of the gear hub of one gear to the centerline of its mating gear. When properly mounted to this dimension, the ends of the teeth of these gears will be flush with each other. If the mounting distance is too long the gears will not be fully in mesh, thus permitting the load to be concentrated above the pitch line and allowing excessive backlash. When distance is too short, gears may bind causing excessive heat, wear and breakage.

LUBRICATION: Adequate lubrication is a necessary factor in this type of gearing to insure longer life of gears and bearings. Residual type (straight mineral) oils are recommended for exposed gearing, hand or bath lubricated. Intermediate Viscosity oils for enclosed gearing subject to moderate temperatures should prove satisfactory in normal operation. Heavy duty application, where pressures or shock loads are moderate to high require Mild Extreme Pressure (EP) lubricants. Specific recommendations can be made by engineers of the many oilcompanies in this field.

正文结束!


天勋机械主营:小模数齿轮,螺旋伞齿轮,伞齿轮,弧齿锥齿轮,螺旋锥齿轮,园林工具齿轮,缝纫机齿轮割草机齿轮


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