straight wheel

This paper gives the new technique of tooth profile on the normal section of nobbing-shaving cutter involute worm which is imitated by hyperbola and suggests that axial section of grinding wheel can be obtained in hyperbolic form by dressing conical surface of grinding wheel along the inclined straight line.

给出了用双曲线拟合滚剃刀渐开线蜗杆法剖面齿形新技术，提出了锥面砂轮按斜直线进行修整，能够获得砂轮轴截面为双曲线形状。

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Base on JM 14 type low speed winch, this paper changes from worm-worm wheel transmisson to straight spur gear transmisson. It becomes a new type JHS 140 type prop-pulling winch.

在现有的JM14型慢速绞车的基础上，将蜗杆蜗轮传动改为直齿圆柱齿轮传动，成为一种新型的JHS140型回柱绞车。

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Specializing in manufacturing the straight gear, bevel gear, spiral gear , gear shaft, wheel and worm shaft.

专业生产各种直齿轮, 斜齿轮, 螺旋伞齿轮 、 齿轴 、 蜗轮及蜗杆.

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Turing the wheel can straight or back without electric power.

不用动力,用手转动方向盘可前进后退.

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Even when driving down a perfectly straight road, it is necessary to turn the steering wheel vigorously from leftto right every few moments.

就算开直路，也必须三不五时地大力向右打方向盘。

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