A cam rotor with rounded tooth root circles tangent and cam arcs on both sides

Abstract

The invention discloses a cam rotor with an addendum circle and a dedendum circle tangently matched and cam arcs on the two sides, a cam rotor molded line allowing the addendum circle and the dedendum circle to tangently run and the cam arcs to tangently run in a fitting mode and a generation method of the cam rotor molded line. According to the purpose characteristics, determined by factors of which one the rotor is used for in power output or power input or force transmission, or the flowing difficulty degree or the rotor rotating speed of fluid and the like, a tooth angle is jointly formed by intersecting connection or tangent connection of an addendum circle arc segment (n), a dedendum circle arc segment (m) and two side arc segments (u,v) and (u1,v1), wherein the two side arc segments meet the requirement of the cam fitting requirement. According to the number of the taken tooth angles and the principle that the angles are same, the whole cam rotor molded line is obtained. The cam rotor is characterized in that the addendum circle arc segment, the dedendum circle arc segment and the side arcs of two corresponding wheels are in alternation fit operation; the cam rotor can run forwardly and reversely, in the process, the length of the addendum circle arc segment (n) is equal to the arc length of the matched area of a rotor and a shell inner circle; due to the high adjustability of the arcs, the use adaptability capability and the professional performance of the rotor are high.

Description

technical field [0001] The invention relates to a cam pump, which is especially suitable for rotor power output and fluid output in which gas, vapor and liquid are fluids. Background technique [0002] At present, the cam pump has the characteristics of large flow, small fluctuation, high pressure, no flow dead point, and small vibration, and the two-axis rotor is a close tangential fit with full rolling and gradual progress, with little wear and good sealing. However, due to its rotor The arc is only tangent to the addendum circle and the dedendum circle, so the rotor and the housing match the single linear gap between the big circle in the housing and each addendum of the rotor, and the sealing performance is poor, which reduces its application range. The gear pump has the characteristics of high pressure, small fluctuation, and no dead point of flow. The dedendum heights are not equal, so the gap between the teeth of the two-axis rotors is large, and the sealing performa...

AI Technical Summary

Problems solved by technology

[0002] At present, the cam pump has the characteristics of large flow, small fluctuation, high pressure, no flow dead point, and small vibration, and the two-axis rotor is a close tangential fit with full rolling and gradual progress, with little wear and good sealing. However, due to its rotor The arc is only tangent to the addendum circle and the dedendum circle, so the rotor and the housing match the single linear gap between the large circle in the housing and each tooth tip of the rotor, and the sealing performance is poor, which reduces its application range

The gear pump has the characteristics of high pressure, small fluctuation, and no dead point of flow. The tooth root heights are not equal, so the gap between the teeth of the two-axis rotors is large, and the sealing performance is poor, resulting in a small range of use as a pump

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