Mechanically-driven random speed change linear motion device

Abstract

The invention discloses a mechanically-driven random speed change linear motion device. The device comprises a variable-frequency motor consisting of a machine base, a variable-frequency coil winding, a rotor, a bearing and a hollow shaft, wherein the excircle, positioned inside the machine base, of the hollow shaft is provided and fixed with the rotor; the hollow shaft is arranged on the machine base through the bearing; internal threads with a corresponding specification are manufactured on an hollow inner circle of the hollow shaft; external threads with the same specification as that of the hollow inner circle of the hollow shaft are manufactured on the excircle of a leading screw; the leading screw is screwed into the internal threads of the hollow shaft through the external threads thereon; a sliding chute parallel with the axial line of the excircle of the leading screw is manufactured on the excircle of the leading screw; the middle part of a stop plate is provided with a hole with a shape similar to that of the cross section of the leading screw, a protrudent rotation stopping tongue of the stop plate is buckled in the sliding chute of the leading screw to form a sliding fit; and the stop plate is arranged and fixed at one end of the machine base through bolts.

Description

technical field [0001] The invention relates to an arbitrary variable speed linear motion device, in particular to an arbitrary variable speed linear motion device with mechanical transmission. It belongs to the technical field of mechanical transmission. Background technique [0002] In the field of mechanical manufacturing and mechanical transmission technology, linear motion mechanisms are often used. At present, mechanical, pneumatic or hydraulic methods are mainly used to realize linear motion mechanisms. The mechanical method generally needs to go through the gear transmission mechanism, the crank connecting rod mechanism or the rack and pinion mechanism. The pneumatic or hydraulic method requires not only the actuator cylinder or hydraulic cylinder, but also a stable air or hydraulic source. In addition, in order to To implement the above-mentioned linear motion mechanism, it is necessary to add a corresponding electrical control system, so there are defects such as ...

AI Technical Summary

Problems solved by technology

The mechanical method generally needs to go through the gear transmission mechanism, the crank connecting rod mechanism or the rack and pinion mechanism. The pneumatic or hydraulic method requires not only the actuator cylinder or hydraulic cylinder, but also a stable air or hydraulic source. In addition, in order to To implement the above-mentioned linear motion mechanism, it is necessary to add a corresponding electrical control system. Therefore, there are defects such as complex structure system, large volume, high cost, and high failure rate.

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