Blade-type pneumatic motor

Abstract

The invention discloses a blade-type pneumatic motor, comprising a housing, an end cover and a rotor. The housing and the end cover are connected in butt-covering manner; a rotor mounting cavity is formed between the housing and the end cover; the rotor is mounted in the rotor mounting cavity; one axial end of the rotor is a rotation output end; the peripheral edge of the rotor is provided with blade grooves in the diameter direction; the blade grooves are distributed in the periphery of the rotor; blades are arranged slidably in the blade grooves. The blade-type pneumatic motor is characterized in that the rotor and the rotor mounting cavity are coaxial, the peripheral sidewall of the rotor mounting cavity is provided with a working chamber concaved outward and used for a flow to pushingthe blades to work; the outer wall of the working chamber is in smooth curve shape; the length of the blades is greater than a maximum distance from openings of the blade grooves to the outer wall ofthe working chamber; one end of the working chamber is provided with intake holes; the wall of the working chamber, in front of the intake holes in the rotation direction of the rotor, is provided with exhaust holes. The blade-type pneumatic motor has the advantages of small vibrations, better overall stability and higher output torque.

Description

technical field [0001] The invention relates to an air motor, in particular to a vane type air motor. Background technique [0002] Pneumatic motors, also known as wind motors, refer to devices that convert the pressure energy of compressed air into rotational mechanical energy. Generally used as a source of rotational power for more complex devices or machines. According to the structure, air motors are classified into: vane air motors, piston air motors, compact vane air motors, and compact piston air motors. Among them, vane air motors are smaller in size, lighter in weight and lower in cost than piston motors of similar power. Their simple design and structure enable them to operate at any installation angle in most cases. Therefore, the vane type air motor is the most commonly used form of air motor. [0003] The structure of the traditional vane air motor includes a housing, an end cover and a rotor. The housing and the end cover are coupled together to form a rotor...

AI Technical Summary

Problems solved by technology

If there is a high torque requirement, it is necessary to add a reducer at the output end to reduce the speed and increase the torque, but this will complicate the motor structure and increase the manufacturing cost

At the same time, due to the eccentric setting of the rotor, the current vane-type air motor causes a large deviation between the rotation axis and the center of gravity of the motor, so the working vibration is large and the overall stability is poor

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