Pressure angle

About: Pressure angle is a research topic. Over the lifetime, 1373 publications have been published within this topic receiving 10245 citations. The topic is also known as: angle of obliquity.

Pinwheel gear set having cam pinion of tooth modification

Abstract: The present invention relates to a pinwheel gear set comprising a pinwheel and a cam pinion. Particularly, the present invention relates to the realization of a pinwheel gear set which has low noise and low vibration and has excellent durability and maintenance, by constituting an external pinwheel gear set outer-geared with the cam pinion having a tooth where a root of the tooth is modified, to contact only the tooth satisfying an allowable pressure angle with the pinwheel, or constituting an internal pinwheel gear set inner-geared with the cam pinion having a tooth where a root of the tooth is modified, to contact only the tooth in a range satisfying the allowable pressure angle with the pinwheel.

Method instead f cold rolling for making spline or screw template

Abstract: A replacing method for cold rolled spline or screw template is disclosed. When two spline templates have same modulus and pressure angle and the real tooch thickness difference less than 0.1 mm, the replacing equation between odd teeth, or even teeth, or odd and even teeth is 2H+die=139.7, where H is the maximal height (mm) of template and the die is the short diameter (mm) of spline. The replacing method for screw template is also disclosed.

Parametric Investigation of Pressure Distribution on Wedge Water Entry by Experiment

Abstract: Analysis of wedge water entry as a basic problem has wide application. Model testing is a powerful means to deal with the said problem. In this study, a set of water entry tests on wedges of 20, 30 and 40 degrees deadrise angles has been conducted and the pressure distributions are recorded. Free falling method in symmetry conditions are considered in this research. A parametric study on pressure coefficients due to velocity and deadrise angles has been carried out on the wedge. Furthermore, Z-parameter as a non-dimensional factor defined for two individual parameters, time and depth of entry, has been evaluated. Finally, some comparison with numerical methods is presented. The kind of parametric study by means of model test may be regarded as the outcome of this study.

Strength and Surface Durability of Sintered Metal Gears (2nd Report)

Abstract: Sintered metal gears have good surface durability even under the self-lubricating condition. But they are not so strong as those made of solid metals having the same chemical composition and tooth geometry.So the load-carrying capacity of sintered metal gears having a high pressure angle or high density were tested. Also, the fatigue characteristics of welded or soldered sintered metal materials were investigated.Results obtained are summarised as follows : (1) The load-carrying capacity can be significantly increased by adopting higher pressure angle system, higher density and carburizing heat treatment.(2) Notch factor is far less than stress concentration factor and size effect exists.(3) Sintered metal can be effectively welded.