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.

Piston type cyclotomic internal combustion engine

Abstract: The present invention relates to a piston cyclotomic internal combustion engine, including cylinder, piston, connecting bar and crank, etc. The described connecting bar is connected with swing bar, the included angle formed between them is a pressured angle (by shape angle), the initial state pressure angle can be selected from 0-90 deg., another end of said swing bar is coaxial with another swing bar, the included angle between two swing bars is any fixed angle, another end of the above-mentioned another swing bar is connected with another connecting bar, and the included angle formed between said two components is a stressing angle (by sharp angle), the initial state stressing angle can be selected from 0-90 deg. and another end of the above-mentioned another connecting bar is connected with crank to drive crank and make it implement circumferential motion to output power.

Dent removing device for gear

Abstract: PURPOSE:To enable a swollen part, generated by a hit flaw on a tooth surface, to be removed in a very short time, by removing at a time the swollen part in a work gear tooth end part by the first grinding gear while the swollen part in four end parts of both observe and reverse tooth surfaces by the second grinding gear. CONSTITUTION:A spindle 18 is forwardly rotated by a motor 30 rotating gears 17, 37, 21 to be meshed, simultaneously a swivel bed 23 is swiveled twisting by a swivel cylinder 28, and the second grinding gear 21 is swiveled twisting for the work gear 37. And the first grinding gear 17, having a tooth part of pressure angle larger than that of the work gear 37, grinds only a tooth end part of the work gear 37 to remove a swollen part in a short time. Simultaneously, the second grinding gear 21, whose tooth surface provides a hollow lead, grinds two parts A, B on an opposite angle of both obverse and reverse surfaces of the work gear 37, if the gear 21 swivels in one side, while two end parts C, D in the opposite side, if the gear 21 swivels in the other side, and swollen parts of the four end parts A-D in the both obverse and reverse surfaces can be ground at a time in a short length of time. The operation is repeated by reversely rotating the motor 30.

Pressure angle obstacle-crossing snow-removing shovel

Abstract: Provided is a pressure angle obstacle-crossing snow-removing shovel. A spring is arranged between an obstacle-crossing balance part and a spring precompressor, one end of a pressure angle locating board is welded to the obstacle-crossing balance part, the other end of the pressure angle locating board supports a shovel edge supporting board, one end of a pressure angle support is connected with the obstacle-crossing balance part through a shaft pin, the other end of the pressure angle support is welded on the shovel edge supporting board and supports a snow-removing pushing board, a certain acute angle is formed between a pressure angle shovel edge and the road surface, and the pressure angle shovel edge is connected with the shovel edge supporting board. The snow-removing pushing board exerts definite downward pressure on the pressure angle shovel edge, the pressure angle shovel edge is located at a certain angle through the pressure angle locating board, the pressure angle support supports the pressure angle shovel edge, and therefore when forward snow removing work is conducted, compacted snow can be easily removed from the road surface. When a protruding article with a certain height occurs on the road surface during snow removing work, the pressure angle shovel edge uses an obstacle-crossing synchronous shaft as the axis to overcome pressure of the spring and turns over outwards.

Paired gears made of abrasion reducing resin

Abstract: PROBLEM TO BE SOLVED: To satisfy various mechanical characteristic needs and further reduce abrasion in meshing gears made of resin by providing the gear having the less number of teeth with a specified number of teeth, and arranging the gears such that meshing pressure angle is within specified multiples of that of a tool. SOLUTION: Number of teeth of a gear which having less number of teeth in the pair may be not more than 30, preferably 25, and more prepferably 23. Two involute or substantially involute gears are so meshed with each other that the meshing pressure angle is within a range from 103 to 180% of that of a tool. It is thus possible to remarkably reduce abrasion of both of the gears composing the pair by highly controlling number of theeth, material, shapes and assembling (arrangement) of the paired gears made of abrasion reducing resin.

Dynamic Analysis of a Geared Rotor-Bearing System with Time-Varying Gear Mesh Stiffness and Pressure Angle

Abstract: The dynamic analysis of a geared rotor-bearing system with time-varying gear mesh stiffness and pressure angle is presented in this paper. Although there are analyses for both of the gear and rotor-bearing system dynamics, the coupling effect of the time-varying mesh and geared rotor-bearing system is deficient. Therefore, the pressure angle and contact ratio of the geared rotor-bearing system are treated as time-varying variables in the proposed model while they were considered as constant in previous models. The gear mesh stiffness is varied with different contact ratios of the gear pair in the meshing process. The nonlinear equations of motion for the geared rotor-bearing system are obtained by applying Lagrange’s equation and the dynamic responses are computed by using the Runge-Kutta numerical method. Numerical results of this study indicated that the proposed model provides realistic dynamic response of a geared rotor-bearing system.