A transmission structure of an electric push rod

Abstract

The present invention relates to the technical field of electric push rods, and relates to a transmission structure of electric push rods, which includes a transmission case composed of a front cover and a rear cover, and an accommodation cavity is formed in the transmission case, and is characterized in that: A screw rod is connected in rotation, and a rotating shaft perpendicular to the screw rod is connected in rotation on the transmission housing. One end of the rotating shaft protrudes from the transmission housing, and the rotating shaft and the screw rod are linked through a deceleration bevel gear set. The outer wall of the transmission housing is provided with a reinforcing support sleeved on the rotating shaft. The invention has the following effects: the reinforcing support is arranged on the outer wall of the transmission case, which can increase its supporting force and reduce the possibility of the rotating shaft shifting in the radial direction, so that when the rotating shaft drives the screw to rotate through the deceleration bevel gear set , Reduce transmission wear, thereby prolonging the service life of the electric push rod.

Description

technical field [0001] The invention relates to the technical field of electric push rods, in particular to a transmission structure of electric push rods. Background technique [0002] Electric push rod is an electric drive device that converts the rotary motion of the motor into the linear reciprocating motion of the push rod. It can be used as an executive machine in various simple or complex technological processes to realize remote control, centralized control or automatic control. It has been widely used in various electromechanical complete sets of equipment and its automatic control devices because of its advantages of good stability, high running accuracy and fast response speed. [0003] Generally, a screw rod is arranged on the electric push rod along its length direction, and a rotating shaft for driving the screw rod to rotate will be set at the lower end of the electric push rod. One end of the rotating shaft will extend out of the electric push rod, and the ou...

AI Technical Summary

Problems solved by technology

[0004] However, in the process of installation and use, it is often necessary to disassemble the electric push rod and the motor for maintenance or to add lubricating oil, and in this process, the output shaft of the motor will inevitably contact and collide with one end of the rotating shaft, making the rotating shaft The impact force in the direction perpendicular to its axial direction causes the rotating shaft to shake in the radial direction. At this time, there is a gap between the screw and the screw during transmission, and the wear is large during transmission, and the service life of the electric push rod is greatly reduced.

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