Shaft end holding cap

Abstract

The invention relates to a shaft end holding cap which comprises a cylinder part, wherein the cylinder part is provided with a closed axial end part and an open axial end part; and a cap peak-shaped flange is extended radially outwards from the open axial end part of the cylinder part, wherein the two opposite sides of the cap peak-shaped flange are cutting planes. The shaft end holding cap of the invention can be applied to a motor with worm and worm gear transmission output, simultaneously controls a worm to axially and radially play, performs the functions of supporting and lubricating the axial direction and the radial direction of the shaft end, and has low cost, simple structure, convenient assembly and easy mass production.

Description

technical field [0001] The invention relates to a shaft end holding cap, in particular to a shaft end holding cap used in a motor with worm gear transmission output. Background technique [0002] At present, the parts used for supporting and lubricating the worm shaft end of the motor can be roughly divided into two types: one is the shaft end gasket, such as Figure 4 As shown, a shaft end gasket 40 is arranged at the end of the shaft 30 to realize axial movement control. However, if the shaft end gasket has no shaft radial control, the radial force on the shaft 30 during transmission may cause bending to affect the transmission. Accuracy, which may cause motor noise and self-locking performance, especially in the case of small diameter shafts, because of insufficient strength, the impact is particularly obvious; if the shaft end gaskets of different thicknesses are selected to achieve axial movement control, It will increase the specifications of the parts and lead to the ...

AI Technical Summary

Problems solved by technology

[0002] At present, the parts used for supporting and lubricating the worm shaft end of the motor can be roughly divided into two types: one is the shaft end gasket, such as Figure 4 As shown, a shaft end gasket 40 is arranged at the end of the shaft 30 to realize axial movement control. However, if the shaft end gasket has no shaft radial control, the radial force on the shaft 30 during transmission may cause bending to affect the transmission. Accuracy, which may cause motor noise and self-locking performance, especially in the case of small diameter shafts, because of insufficient strength, the impact is particularly obvious; if the shaft end gaskets of different thicknesses are selected to achieve axial movement control, It will increase the specifications of the parts and lead to the complexity of the transfer; the other is to add a radial bearing in addition to the shaft end gasket in the previous one, which can control the radial and axial directions of the shaft at the same time, but its The number of parts increases and the price is high, and the assembly is also quite troublesome, and even the efficiency is very low in mass production

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