Results 11 to 20 of about 4,404 (188)

Meshing theory and contact analysis of double enveloping hourglass worm drive with planar generatrix [PDF]

Scientific Reports
The meshing and limit equations of worm drive usually have strong nonlinearities such as multiple solutions, solution nonexistence and equation singularity.
Quancheng Peng, Minghao Li
doaj   +5 more sources

A novel backlash-adjustable and wear-compensable hourglass worm drive: computerized design, simulation of meshing and stress analysis

Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2016
To satisfy the requirements of high accuracy and high-loading capacity, a novel precision-power hourglass worm drive characterizes with backlash-adjustable and wear-compensable is demonstrated.
Yonghong CHEN, Yan CHEN, Wenjun LUO, Guanghui ZHANG   +3 more
doaj   +4 more sources

Effects of tooth surface modification on planar double-enveloping hourglass worm gear drives

Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2018
The modification of the planar double-enveloping hourglass worm gear drive can eliminate the phenomenon of the contact line cross and improve the transmission performance.
Fayang HE, Zhaoyao SHI, Bo YU
doaj   +4 more sources

Thermal Elastohydronamic Lubrication Characteristics of Inclined Double-roller Enveloping Hourglass Worm Drive

Journal of Physics: Conference Series, 2023
Abstract To grasp thermal elastohydrodynamic lubrication (TEHL) characteristics of the conjugating tooth-pairs of inclined double-roller enveloping hourglass worm drive in transmission process. The numerical solutions of line contact thermal EHL were obtained based on meshing theory of this worm drive and the theory of EHL. The TEHL line
Jinkuan Li, Yujie Wen, Zaixin Liu
openaire   +2 more sources

Study on the toroidal helix and manufacturing method of enveloping hourglass worm tooth surface

Advances in Mechanical Engineering, 2023
As a complex space enveloped surface, the tooth surface of dual-lead helical gear enveloping hourglass worm is characteristic with difference tooth profile, unequal pitch and variable tooth thickness.
Yan Chen, Xinhua Wang, Huili Ma
doaj   +2 more sources

Theoretical modeling and transmission characteristics analysis of a novel double-roller hourglass worm drive based on enveloping principle

Discover Mechanical Engineering, 2023
Abstract Traditional planar double-enveloping hourglass worm pairs have the characteristics such as the strong bearing capacity, high transmission efficiency and long life-span. However, the high relative sliding velocity and the serious agglutination or abrasion may also occur at the contact point on tooth surfaces. In this paper, a novel type
Song Gao, Xiaolin Wang
openaire   +2 more sources

Meshing Theory Analysis of Parallel Inclined Double Roller Enveloping Hourglass Worm Drive

Jixie chuandong, 2021
Based on the modification of single roller enveloping hourglass worm drive， a new type of worm drive， parallel inclined double roller enveloping hourglass worm drive is proposed.
Honghui Liao, Xudong Wang, Yan Qi, Zaixin Liu   +3 more
doaj   +1 more source

Multi-Physically Programmable Tubular Origami Metamaterials: Exploitable Nexus of Geometry, Folding Mechanics and Stimuli-Responsive Physics. [PDF]

Adv Sci (Weinh)
This article presents an insightful review on the exploitable nexus of geometry, folding mechanics and stimuli‐responsive physics for achieving active programmability in tubular origami metamaterials and metastructures, highlighting the broad‐spectrum potential in innovative applications across the length scales, along with critically analysing the ...
Sharma A, Naskar S, Mukhopadhyay T.
europepmc   +2 more sources

Influence of Base Oil on Planar Double Enveloping Hourglass Worm Drive

Jixie chuandong, 2021
In order to study the influence of different base oils on the lubrication of planar double enveloping hourglass worm drive，running in test is carried out. It is found that，when using polyethylene glycol synthetic oil，the transmission efficiency increases
Fayang He, Zhanshan Li
doaj   +1 more source

MESHING THEORY ANALYSIS OF THE MODIFIED ROLLER ENVELOPING HOURGLASS WORM DRIVE

Jixie qiangdu, 2022
Based on the modification of the single-roller-enveloped toroidal meshing worm drive, a parabolic modified roller-enveloped toroidal meshing worm drive is obtained.
QI Yan, LIAO HongHui, WANG XuDong, LIU ZaiXin, LI JinKuan   +4 more
doaj   +1 more source