Super grinding whetstone for cylindrical roller with logarithmic camber

A technology of cylindrical rollers and whetstones, which is applied in the field of logarithmic convex cylindrical roller finishing whetstones, which can solve the problems of not being widely used, difficult processing, and high cost, and achieve the effect of difficult processing, easy operation, and low cost

Inactive Publication Date: 2009-10-07
ZHEJIANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The logarithmic type is currently considered the most ideal roller convex type, but its processing difficulty and high cost cannot be widely used in engineering

Method used

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  • Super grinding whetstone for cylindrical roller with logarithmic camber
  • Super grinding whetstone for cylindrical roller with logarithmic camber
  • Super grinding whetstone for cylindrical roller with logarithmic camber

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Embodiment Construction

[0026] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0027] Such as figure 1 As shown, the two surfaces of the cuboid oilstone in the length direction are composed of an inwardly concave front surface 3 and an inwardly concave rear surface 5. The two concave surfaces have the same shape and are symmetrically distributed. The three sides are the upper curved surface 1 with equal diameter and concave, the radius of the upper curved surface 1 is equal to the radius of the logarithmic convex cylindrical roller, the left plane 2, the right plane 4 and the lower plane 6 are all planes, and 7 is the front curved surface 3 The projection curve on the bottom plane, 8 is the projection curve of the back curved surface 5 on the bottom plane, and 9 is the projection curve of the upper curved surface 1 on the side plane.

[0028] The diameter of the roller is 9mm, and the length is 10mm. This example adopts ...

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PUM

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Abstract

The invention discloses a super grinding whetstone for cylindrical roller with logarithmic camber. two surfaces of the cuboid whetstone in length direction are composed of symmetrical distributed inwardlydished curved surfaces with same shape; the third surface of the cuboid whetstone in the length direction is an iso-radial concave curved surface with the radius equal to that of the cylindrical roller with logarithmic camber. The grinding theory says: the workpiece cutting amount is proportional to the contact arc length; therefore, the whetstone structure can be designed according to the cutting amount calculated by the logarithmic camber curve, and the whetstone can be used for grinding to obtain the workpiece with requested logarithmic camber. the whetstone with the structure needs simple equipments for machining roller camber, is low in cost, and convenient in operation, solves the problems of high difficulty and high cost in logarithmic camber roller machining, has higher engineering value and economic benefit.

Description

technical field [0001] The invention relates to a whetstone used for processing crown rollers, in particular to a finishing whetstone for logarithmic convex cylindrical rollers. Background technique [0002] The finite length of roller-raceway contact results in stress concentrations at the ends of the rollers, reducing the fatigue life of rolling bearings. Roller shape modification design can improve the bearing capacity and fatigue life of rolling bearings, so the convexity selection and convexity calculation of rollers have become one of the key issues. Roller convex types generally include linear type, arc semi-convex type, arc full convex type, corrected linear type and logarithmic type. The logarithmic type is the most ideal roller convex type at present, but its processing difficulty and high cost cannot be widely used in engineering. Contents of the invention [0003] The purpose of the present invention is to overcome the disadvantages of the prior art, and prov...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24B5/37
Inventor 蒋秀龙林世才汪久根
Owner ZHEJIANG UNIV
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