Linear dynamic device of spiral electromagnet

Abstract

The invention discloses a linear dynamic device of a spiral electromagnet. The linear dynamic device comprises a coil frame, a main shaft, a coil, a coil protection cover and a fixed seat, wherein the coil frame is wheel-shaped and is provided with a vertical hollow shaft; the main shaft can be just inserted into the hollow shaft of the coil frame and is in sliding fit with the hollow shaft; the coil is wound on the coil frame; the coil protection cover is provided with a cylindrical shell matched with the coil frame and is matched with the coil frame to form a sealed space for accommodating the coil; and the fixed seat is connected with a flange at the bottom of the coil frame and is provided with a void-avoiding groove coaxially matched with the coil frame. The higher the height of the coil is, the longer the stroke of the main shaft is. The length of the main shaft also can be adaptive according to the application environment. By adopting the technical scheme, the linear dynamic device has a simple structure and low friction, overcomes vibration and noise, has a wide application range, can substitute the traditional dynamic device or power assisting device of an electrical swing bed and also can be applied to a lifting dynamic device or a power assisting device of amusement devices, such as a giddy-go-round and the like and to other similar mechanical devices adopting linear stroke.

Description

technical field [0001] The invention relates to a motor technology, in particular to a helical electromagnet linear power device. Background technique [0002] In order to realize linear transmission, the driving devices of common mechanical equipment mostly use rotating motors to cooperate with crank connecting rods, cams and other kinematic pairs to achieve linear transmission. For example, the electric swing bed disclosed in the notification number CN2810570 comprises a frame and a bed, and the bed is supported on the frame by a rotating shaft fixed in the middle of the bottom, and a connecting rod is hinged at the bottom of one side of the bed, and the other end of the connecting rod It is articulated with a crank driven by a motor, which drives the crank and makes the bed swing through the connecting rod. [0003] In view of the fact that the kinematic pair in the above structure works in an eccentric manner, a large unbalanced inertial force will be generated, result...

AI Technical Summary

Problems solved by technology

[0003] In view of the fact that the kinematic pair in the above structure works in an eccentric manner, a large unbalanced inertial force will be generated, resulting in excessive vibration and noise of the load

In view of the large size and complex structure of the above-mentioned kinematic pair, high manufacturing precision is required, and it has a high motion speed, which will generate large friction loss

[0004] It can be seen that the driving device used in the prior art consumes a lot of power, is easy to wear, and has noise pollution. It is especially difficult to apply to the scope of daily life, and the application range is limited.

Images