Gear top edge modifying method for improving gluing bearing capacity of involute cylindrical gear

An involute cylinder, bearing capacity technology, applied in the direction of elements with teeth, belts/chains/gears, portable lifting devices, etc., can solve problems such as unsatisfactory results, achieve practical methods, pitting and gray spots The effect of reducing the phenomenon and improving the service life

Active Publication Date: 2017-10-17
CHINA NORTH VEHICLE RES INST
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  • Gear top edge modifying method for improving gluing bearing capacity of involute cylindrical gear
  • Gear top edge modifying method for improving gluing bearing capacity of involute cylindrical gear
  • Gear top edge modifying method for improving gluing bearing capacity of involute cylindrical gear

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[0023] In order to make the purpose, content and advantages of the present invention clearer, the specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0024] Such as figure 1 As shown, in the present invention, a tooth tip trimming method for improving the gluing bearing capacity of involute cylindrical gears, the tooth tip trimming curve is composed of two segment trimming curves: the first segment trimming curve is composed of the first The segment fitting curve 6 is fitted, and the second segment of the edge repairing curve is fitted by the second segment of the fitting curve 7 .

[0025] Such as figure 2 As shown, first determine the first fitting curve 6: the first fitting curve 6 is a curve from the highest point 1 on the involute line of the tooth surface to the addendum circle 4 when the least teeth participate in meshing. The first fitting curve 6 is locat...

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Abstract

The invention relates to a gear top edge modifying method for improving the gluing bearing capacity of an involute cylindrical gear. An edge modifying curve of the involute cylindrical gear is divided into two sections; the first section of curve body conducts modifying upwards from the highest point on a gear surface involute when a minimum gear participates in meshing to the gear top, so that the situation that the gear is meshed for a long time and deforms, thus meshing is started in advance, and vibration noise is caused is prevented; the second section of edge modifying curve body makes another curve transition at the gear top subjected to edge modifying at the first position, the first point entering engaging moves downwards for a certain distance, thus when engaging is started, the responsive Hertz stress is reduced, and the pitting corrosion and gray spot phenomena at the root of the corresponding meshing gear is greatly reduced through the edge modifying effect; and finally, the whole gear surface curve is composed of the second section edge modifying curve body, the first section edge modifying curve body and the involute curve body from the gear top to inside. The abrasion quantity is reduced, the service life is prolonged, and the gluing bearing capacity of the gear is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of mechanical transmission, and in particular relates to a method for repairing the tooth top of an involute cylindrical gear. Background technique [0002] The gear is the basic component of the transmission system. Its function is to transmit the rotation of one shaft to another shaft to realize functions such as deceleration, speed up, direction change and steering. Among them, the involute cylindrical gear is the most commonly used gear. During the meshing process, when the gears are running, due to the relative sliding of the two gears, grooves are torn on the surface of the tooth surface, and this phenomenon is called tooth surface gluing. When the tooth surface is glued in the high-speed and heavy-duty gear transmission, the oil film of the lubricating oil is often destroyed due to the temperature rise, and a high instantaneous temperature is generated in contact with the tooth surface. At the same t...

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Application Information

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IPC IPC(8): F16H55/08G06F17/50
CPCF16H55/08G06F30/20
Inventor 程燕李洪武许晋何融张玉东李亮
Owner CHINA NORTH VEHICLE RES INST
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