Study on evaluation system of gear accuracy based on statistical analysis

Wang, X.Y.; Shi, Zhaoyao; Shu, Zanhui; Fu, Sheng

doi:10.1533/9781782421955.905

Cited by 3 publications

(3 citation statements)

References 6 publications

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“…As to whether the power transfer process of a gear tester constitutes a closed system, the gear tester is often divided into two types. One is power flow closed and the other is power flow open [23]. The general structure of the power open tester is shown in Figure 5.…”

Section: Structure Typementioning

confidence: 99%

Development of gear dynamic performance testing machine

Li¹,

Yu²,

Shi³

et al. 2021

Int. J. Metrol. Qual. Eng.

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With the development of gears towards high temperature, high pressure, high speed and high stress, gear measurement, in which only the static geometric accuracy is considered, is unable to meet the current application requirements. While, the low precision and single function gear tester constrains the measurement of gear dynamic performance. For the resolution of this problem, based on the principle of gear system dynamics and several precision mechanical design techniques, a gear dynamic testing machine has been developed, providing new instruments for gear testing. On the basis of research of the principle of dynamic performance test, the primary measurement items of the testing machine have been determined. The measuring principles of each item and the driving and loading form of the testing machine have been examined. The measurement and control system of the testing machine and its corresponding software have been developed. The instrument can not only obtain the static precision index of the gear, but also obtain the dynamic performance index of the gear in variable working conditions. According to the actual test, the uncertainty of instrument is 3.8 μm and the external disturbance caused by the shaft vibration is less than 0.6 μm, which can meet the 5–6 grade precision gear testing requirement.

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Section: Structure Typementioning

confidence: 99%

Development of gear dynamic performance testing machine

Li¹,

Yu²,

Shi³

et al. 2021

Int. J. Metrol. Qual. Eng.

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show abstract

“…Ensuring their proper operation, requires the production of parts with small dimensional and shape tolerances, which is often a technological challenge. The search for the roots of transmission errors was the subject of numerous studies, such as [20,23], in which the analytical and statistical methods for evaluating gear units quality were extremely useful.…”

Section: Introductionmentioning

confidence: 99%

Effect of Manufacturing Errors on the Operation of the Eccentric Rolling Transmission

Pabiszczak¹,

Ptaszyński²

2020

Adv. Sci. Technol. Res. J.

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The eccentric rolling transmission consists of rolling bearings mounted eccentrically on the input shaft, cooperating with cam wheels, which are mounted on the output shaft. The aim of this paper was to determine the sensitivity of the transmission to the manufacturing errors of the cam wheel. Two methods of cam wheels milling using a universal CNC machining center were proposed. The measurements of manufactured wheels were performed using a blue light 3D scanner, which allowed the determination of geometric dimensions and deviations from nominal geometry. The experimental research of the eccentric rolling transmission prototype equipped with manufactured cam wheels was conducted, measuring the torque on the gear shafts as a function of its angular position. On the basis of the obtained results, the impact of manufacturing errors on the operation of the transmission unit was examined, especially in terms of torque and efficiency. It was indicated that the machining using ball nose end mill ensures sufficient accuracy of the cam wheels.

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“…The gear trade relies on different standards, such as Deutsches Institut für Normung (DIN) 3963 and American Gear Manufacturers Association (AGMA) 2000-A88. Both standards classify gears in different quality levels that can be placed into six major levels of accuracy [3,7]. Another important factor to consider is also the material combination, which strongly depends on the application and operating boundary conditions.…”

Section: Introductionmentioning

confidence: 99%

Influence of Solid Lubricants on the Tribological Performance of Photocurable Resins for Vat Photopolymerization

et al. 2020

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New developments in additive manufacturing (AM) are enabling the use of 3D printed parts in increasingly demanding applications, such as in mechanical power transmission systems, where excellent build quality and tribological performance are required. The tribological properties of thermoplastic-based AM technologies are well knowninject, whereas the performance of photopolymer-based AM technologies is very rarely explored. This study aims to provide new insight into the tribological performance of 3D printed parts produced using vat photopolymerization (VPP). Photocurable resins based on aliphatic urethane acrylate oligomers were modified with different solid lubricants (polytetrafluoroethylene (PTFE), graphite and molybdenum disulfide (MoS2)) and 3D printed using Digital Light Processing (DLP). The mechanical and thermal properties were studied using the tensile tests, Charpy impact tests, Shore D, and dynamic mechanical analysis (DMA). The tribological performance was studied using a Pin-on-Disk tribometer. Among the lubricants, PTFE had the highest impact on the coefficient of friction (µ) and the specific wear rate (ws). The hybrid lubricant system (PTFE/MoS2) resulted in excellent tribological performance, where the µ was reduced by up to 52% and ws by up to 92%.

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Study on evaluation system of gear accuracy based on statistical analysis

Cited by 3 publications

References 6 publications

Development of gear dynamic performance testing machine

Development of gear dynamic performance testing machine

Effect of Manufacturing Errors on the Operation of the Eccentric Rolling Transmission

Influence of Solid Lubricants on the Tribological Performance of Photocurable Resins for Vat Photopolymerization

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