Following type driving speed reducer

Abstract

The invention relates to a following type driving speed reducer for a joint robot. The following type driving speed reducer comprises an input shaft (2), an output shaft (16), a machine casing (11), a back press plate (4), a differential gearbox (12), a bearing upper cover (14), and a bearing lower cover (17), wherein a following plate (7) is arranged between the differential gearbox and the back press plate; a V-shaped rail (20) of a surface A is arranged on the surface A of the following plate, a V-shaped rail (21) of a surface B is arranged on the surface B of the following plate, a first crossing roller (5) is arranged on the V-shaped rail (20), and a second crossing roller (8) is arranged on the V-shaped rail (21); a transmission track (22) for installing the first crossing roller is arranged on the back press plate; a movement track (19) for installing the second crossing roller is arranged on the surface of the differential gearbox. The following type driving speed reducer has the advantages that the movement of the input shaft (eccentric shaft) is automatically adjusted to be completely engaged with the eccentric quantity, the tracks of the transmission ball and the differential gearbox of the speed reducer are completely engaged; the output of the speed reducer is stable, and the mechanical loss rate is low.

Description

technical field [0001] The invention relates to a mechanical transmission deceleration technology, in particular to a drive reducer applied to a joint robot. Background technique [0002] At present, most of the mechanical transmission reducers are driven by gears or worm gears. The main principle is to change the speed by changing the number of teeth of the gears. The defects and deficiencies of this type of mechanical transmission reducer are: due to the low machining accuracy of the transmission parts, there is a certain process gap in the design and installation process of the gear or worm gear reducer, which affects the output accuracy. The movement between them is in the form of a high pair, which is prone to problems such as mechanical wear, unstable transmission, loud noise, and poor output accuracy. [0003] In the Chinese invention patent application number 2015103631823 and the announcement number CN104964011A (application date: June 25, 2015) published on Octobe...

AI Technical Summary

Problems solved by technology

The defects and deficiencies of this type of mechanical transmission reducer are: due to the low machining accuracy of the transmission parts, there is a certain process gap in the design and installation process of the gear or worm gear reducer, which affects the output accuracy. The movement between them is in the form of a high pair, which is prone to problems such as mechanical wear, unstable transmission, loud noise, and poor output accuracy.

However, the driving ball is prone to slight jumps when working, and its stability is poor, and it is easy to produce unsmooth output of the reducer, stepping vibration, high wear rate, etc.

Images