Analysis of Outline Measurements Methods of Spur Gear Involute Profile

Boral, Piotr; Gołębski, Rafał; Stoić, Antun

doi:10.17559/tv-20191205165340

Cited by 3 publications

(3 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The methods should cover the size domain from small gears [33] to large gears [29]. Even if specific machines exist, new measuring devices are still developed [33,34], confirming the need for low-cost measuring apparatuses, comparable in precision with modern dedicated measuring apparatuses. Two classical inspection methods with direct contact are used for the control of the tooth of spur gears with an involute profile: the span over teeth and the dimension over pins [25,26].…”

Section: Inspection Dimensions For Spur Gears With External Teethmentioning

confidence: 99%

A New Direct and Inexpensive Method and the Associated Device for the Inspection of Spur Gears

Alaci,

Ciornei,

Romanu

et al. 2023

Machines

View full text Add to dashboard Cite

This paper proposes a new rapid and straightforward method along with a related device for finding the three basic parameters of an actual external involute spur gear. The number of teeth is easily counted, but the other two parameters—the module and the coefficient of profile shift—are difficult to identify. The method is based on the principle of inspection of the precision of gear teeth, using the dimension over pins, when the maximum distance is measured between the lateral surfaces of two cylindrical rollers of well-controlled dimensions, placed into the spaces between teeth. The dimension over pins is applied as a function of the number of teeth (odd or even) and requires experience (and this is the main disadvantage of the method) for finding the correct maximum distance between pins. The new method eliminates this drawback as it proposes a measuring scheme where four identical rollers are used in a designed inspection device. The system is statically determinate and, therefore, the dimension to be measured is unequivocally found. A new relation for the dimension to be measured is deduced and allows for finding the module and the coefficient of profile shift. The inspection device is described and a concrete case is presented for exemplifying the methodology. A further application permits finding the centre distance for an external spur gearing. Unlike the classical technique where the centre distance is obtained based on the centring surfaces of the wheels, the new method implies only dimensions measured through flank measurements, thus eliminating errors introduced by the deviations between the flanks and the centring surfaces of the wheels.

show abstract

Section: Inspection Dimensions For Spur Gears With External Teethmentioning

confidence: 99%

A New Direct and Inexpensive Method and the Associated Device for the Inspection of Spur Gears

Alaci,

Ciornei,

Romanu

et al. 2023

Machines

View full text Add to dashboard Cite

show abstract

“…In addition, the application of modern materials and additional coatings for the production of bearing elements allows one to improve the functionality of rolling bearings [ 8 ]. Moreover, together with the development of methods of manufacturing bearing components, certain solutions related to the measurement technique should be sought in order to improve the measurement process [ 9 , 10 ]. For this purpose, one can use the technological heredity phenomenon analysis in terms of the rolling bearing production process.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Technological Heredity in the Production of Rolling Bearing Rings Made of AISI 52100 Steel Based on Waviness Measurements

Zmarzły

2022

Materials

View full text Add to dashboard Cite

The production of rolling bearings is a complicated process that requires the use of many operations. The manufactured elements of rolling bearings should be of high quality while minimizing production costs. Despite many research studies related to the analysis of technological processes, there is still a lack of research and tools allowing us to satisfactorily assess the relationships between individual operations of the rolling bearing ring process of production and the quality. To perform such an assessment, one can use the concept of technological heredity phenomenon analysis. As the surface waviness of the bearing race is of key importance, the present paper aims at evaluating how the individual technological operations of the rolling bearing ring production process affect the formation of their surface waviness. The surface waviness of the bearing race was measured in both directions (two sections), i.e., along the circumference using the Talyrond 365 measurement system and across the circumference of the race using Talysurf PGI. The production of 6308-2z rolling bearings made of AISI (American Iron and Steel Institute) 52100 bearing steel was analyzed. The occurrence of the phenomenon of technological heredity in the production of rolling bearings was observed. The research results indicate that the turning operation reduces the surface waviness of the bearing rings obtained after forging, while the heat treatment causes a slight increase in surface waviness. On the other hand, grinding operation significantly reduces the waviness, with this reduction being greater for the outer ring. Furthermore, the research has shown that the waviness of the surface is an inheritance factor caused by individual operations of the rolling bearing rings manufacturing process.

show abstract

“…At the same time, in order to meet the requirements of high quality and low noise gear mass production, the quality control and accuracy detection of gear surface is particularly important. Golebski proposed a method to allow the production of cylindrical gears with a tooth and profile line other than the standard [36], and the comparsion of measuring methods for the involute profile of the spur gear tooth was described [37]. And the method of machining gears by the step-by-step method has been also proposed, which can be used in unit machining of large-module gears with an arbitrary profile modification system [38].…”

Section: Introductionmentioning

confidence: 99%

The Mathematical Model of Curve-Face Gear and Time-Varying Meshing Characteristics of Compound Transmission

Ya-nan

Lin

et al. 2021

Applied Sciences

View full text Add to dashboard Cite

The curve-face gear pair is a new type of gear pair with variable transmission ratio for spatial finite helical motion. In this paper, mathematical models of a new developed curve-face gear were simplified and obtained directly by the standard shaper. The subsequent studies on the curve-face gear compound transmission characteristics were further analyzed by the combinations of the principle of space gearing and screw theory. Firstly, the conjugate tooth surface geometry as well the point contact traces of curve-face gears were derived. Secondly, the geometric relationships between gear pair and the corresponding meshing characteristics were evaluated by several basic geometric elements, including instantaneous screw, axodes, striction curve, and conjugate pitch surface. Based on that analysis, it was found that the tooth contact normal was reciprocal to the instantaneous twist, which demonstrated that the conjugate motion with the desired transmission ratio could be realized in current curve-face gear compound transmission. Moreover, the time-varying slip characteristics of the curve-face gear pair were also revealed, that is, rolling and sliding action coexist at all contact on the tooth surfaces. In brief, this work provided the theoretical basis for following researches on machining curve-face gear with standard shaper.

show abstract

Analysis of Outline Measurements Methods of Spur Gear Involute Profile

Cited by 3 publications

References 11 publications

A New Direct and Inexpensive Method and the Associated Device for the Inspection of Spur Gears

A New Direct and Inexpensive Method and the Associated Device for the Inspection of Spur Gears

Analysis of Technological Heredity in the Production of Rolling Bearing Rings Made of AISI 52100 Steel Based on Waviness Measurements

The Mathematical Model of Curve-Face Gear and Time-Varying Meshing Characteristics of Compound Transmission

Contact Info

Product

Resources

About