Pneumatic motor

Abstract

A pneumatic motor is disclosed, the cylinder structure of which is changed to make the bearing at upper seat and the bearing at lower seat eccentric respectively to the internal circumference of the cylinder and make the internal circumference and the external circumference of the cylinder in concentric structure, so that under the precondition of not changing the volume of the cylinder internal chamber, the weight and volume of the whole pneumatic motor are all reduced, its appearance is legerity, for same appearance specification it has higher torque, tools adopting the pneumatic motor will be more agile and convenient.

Description

technical field [0001] The present invention relates to an air motor. Background technique [0002] The vane air motor is a power device widely used in various pneumatic tools and pneumatic machinery. The existing air motor, as shown in Figures 1 and 2, includes a main body 11 and a cylinder lower seat 12 installed in the main body 11, Cylinder 13, blade 14, pneumatic rotor 15 and cylinder upper seat 16, described cylinder lower seat 12 and cylinder upper seat 16 are fixed on the two ends of described cylinder 13, and described pneumatic rotor 15 is placed in it, and on described pneumatic rotor 15 A blade groove 151 for inserting the blade 14 is provided, and two bearings are respectively arranged in the cylinder lower seat 12 and the cylinder upper seat 16, and the inner circumference of the bearing 17 is concentric with the outer circumference of the lower seat 12 or the upper seat 16. , in order to leave an air gap 18 for gas circulation between the pneumatic rotor 15 a...

AI Technical Summary

Problems solved by technology

[0002] The vane air motor is a power device widely used in various pneumatic tools and pneumatic machinery. The existing air motor, as shown in Figures 1 and 2, includes a main body 11 and a cylinder lower seat 12 installed in the main body 11, Cylinder 13, blade 14, pneumatic rotor 15 and cylinder upper seat 16, described cylinder lower seat 12 and cylinder upper seat 16 are fixed on the two ends of described cylinder 13, and described pneumatic rotor 15 is placed in it, and on described pneumatic rotor 15 A blade groove 151 for inserting the blade 14 is provided, and two bearings are respectively arranged in the cylinder lower seat 12 and the cylinder upper seat 16, and the inner circumference of the bearing 17 is concentric with the outer circumference of the lower seat 12 or the upper seat 16. , in order to leave an air gap 18 for gas circulation between the pneumatic rotor 15 and the cylinder, the inner and outer circumferences of the cylinder 13 are eccentric structures, which lead to unequal thickness of the cylinder wall, which not only brings problems to production and processing. Difficulty, and make the volume and weight of the entire air motor larger, and therefore make the air tool equipment using this motor relatively heavy

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