Parallel move rotor type capacity-varied device

Abstract

The invention belongs to the technical field of capacity-varied machinery and relates to a parallel move rotor type capacity-varied device. The device comprises a cylinder body, rotors and an end cover, wherein the cylinder body is provided with cylinders which are provided with circular arc shaped inner hole surfaces; the rotors are skewed in the cylinders and are provided with circular arc shaped cylindrical outer surfaces; the axes of the rotors are parallel to the axes of the cylinders and surround the axes of the cylinders to carry out fixed-axis rotation with the eccentricity as the radius. Besides, the device is provided with parallel move blades and sliding blades, wherein the parallel move blades and the rotors are tightly connected or are integrated; the cylinder body is provided with chutes; the sliding blades are provided with flat bodies and are in sliding fit with the chutes; the sliding blades are in dynamic seal fit with the parallel move blades; and the rotors and the parallel move blades carry out parallel move and rotation together. Compared with the prior art, the device thoroughly eliminates the leakage ways and disengaging between the parallel move blades and the rotors, thus reducing leakage loss. The device can serve as compressors, vacuum pumps, pneumatic pumps, water pumps, hydraulic pumps and hydraulic motors.

Description

technical field [0001] The invention belongs to the technical field of fluid machinery, and in particular relates to a machine capable of periodically changing the volume of a working chamber of a device, and more specifically relates to a device in which a rotor realizes variable capacity by translational rotation. Background technique [0002] The variable capacity device is a kind of extremely widely used machinery, including various compressors, vacuum pumps, pneumatic pumps, fluid pumps and hydraulic motors, etc. It achieves the pressure of fluids such as gas or liquid by periodically changing the volume of the working chamber. Variation or mass transfer, of which the variable displacement device with a rotating rotor takes up the least space, in other words it is the most compact. In order to improve mechanical efficiency and working life, the prior art CN201057149 proposes a rotor-type gas compression device, which includes a cylinder block, a rotor, blades and an end...

AI Technical Summary

Problems solved by technology

However, this device has two disadvantages: one disadvantage is that the blades and the translational rotor adopt a dynamic line contact method, so the seal is not reliable enough, so that the gas in the high-pressure chamber can easily escape to the low-pressure suction chamber; One drawback is that the blades rely on back pressure springs to press and contact the translational rotor. Therefore, when the device is running at high speed or with variable frequency, the blades and the translational rotor are often separated due to the action of inertial force, which will also cause gas the leak

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