Harmonic reducer with composite ball bearing and lower shell manufacturing method

Abstract

The invention discloses a harmonic reducer with a composite ball bearing and a lower shell manufacturing method. According to the harmonic reducer, a composite ball bearing is annularly distributed between a cam and a flexible gear; the composite ball bearing comprises an inner ring and an outer ring; and a pin roller and a ball are arranged between the inner ring and the outer ring. The output load of the harmonic reducer can be improved, and the service life is prolonged. The method comprises the following steps of: a, clamping an internal loading platform and an external loading platform; b, mounting a connecting rod and a bottom support; c, installing a lower shell; d, installing positioning pipes; e, installing sleeves; and f, installing fixing pipes. According to the harmonic reducer with the composite ball bearing and the lower shell manufacturing method provided by the invention, the positioning pipes with the same length and the same position are arranged, the positioning pipes are sleeved with the sleeves, then the fixing pipes are screwed into the sleeves, when the fixing pipes cannot be screwed, the bottoms of the fixing pipes abut against the positioning pipes at the moment, and the lengths, extending out of the sleeves, of all the fixing pipes are ensured to be the same.

Description

technical field [0001] The invention belongs to the technical field of harmonic reducer equipment, and in particular relates to a method for manufacturing a harmonic reducer with a composite ball bearing and a lower casing. Background technique [0002] The principle of harmonic gear transmission deceleration refers to the use of the relative motion of the flex spline, rigid spline and wave generator, mainly the controllable elastic deformation of the flex spline to realize motion and power transmission. The elliptical cam in the wave generator rotates in the flexspline to deform the flexspline. When the flexible spline teeth at the two ends of the long axis of the wave generator and the rigid spline teeth are engaged, the flexible spline teeth at the two ends of the short axis are disengaged from the rigid spline teeth. For the teeth between the long axis and the short axis of the wave generator, the teeth in different sections along the circumference of the flexible splin...

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Problems solved by technology

[0003] The existing harmonic reducer uses a general ball flexible bearing at the input end. Since the balls are in point-to-point contact, the contact bearing area is small and easy to wear, and there is an axial gap after wear, making the ball flexible. Bearings are easily deformed after bearing radial and axial forces, resulting in easy damage to flexible bearings, which reduces the stiffness of the input end of the harmonic reducer and cannot withstand excessive axial impact, reducing the load and service life

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