Split type high-precision planet carrier and manufacturing method thereof

Abstract

The invention provides a split type high-precision planet carrier and a manufacturing method of the split type high-precision planet carrier. The split type high-precision planet carrier comprises a primary planet carrier and a secondary planet carrier. The primary planet carrier comprises a circular main disk with a center hole, the secondary planet carrier comprises a circular main disk with a center hole, and planet gear shaft holes, planet carrier locating pin holes and planet carrier bolt holes are formed in each main disk and located in a one-to-one correspondence mode. Three concentric stepped convex circles are arranged on one side of the secondary planet carrier in a protruding mode, and the middle convex circle can be used for supporting the planet carrier. The primary planet carrier and the secondary planet carrier are fastened together. When the split type high-precision planet carrier is manufactured, the independent part size element, roughness element and geometric tolerance element machining of the primary planet carrier, the secondary planet carrier and locating pins is conducted according to the standards of the parts; the locating pin holes are formed in the state that the primary planet carrier and the secondary planet carrier are combined after exquisite alignment of the standards is accomplished; and finally centering alignment, machining and locating are conducted to accomplish the size and geometric tolerance design of the planet gear shaft holes. The split type high-precision planet carrier and the manufacturing method of the split type high-precision planet carrier solve the problem that disassembling, assembling, adjustment and machining of a split type high-precision planet carrier assembly cannot be conducted, and can guarantee that the supporting and locating accuracy of the primary planet carrier and the secondary planet carrier is unchanged after the planet carrier is disassembled and assembled repeatedly.

Description

technical field [0001] The invention belongs to the technical field of mechanical transmission, and the method is used for the design of a split-type high-precision planet carrier. Background technique [0002] The planetary carrier is one of the basic central components of the planetary transmission, which has the functions of transmitting motion, load and power. The planetary transmission that transmits the same power generally adopts the technical approach of increasing the speed and reducing the transmitted torque to increase the power density and reduce the load-carrying volume. The planetary transmission itself has internal excitation, system vibration and other phenomena. In order to increase the power density and increase the transmission speed, this method will undoubtedly increase the meshing frequency of the planetary transmission unit and aggravate the system vibration. The internal excitation will generate support dislocation and resonance of rotating components...

AI Technical Summary

Problems solved by technology

The planetary transmission itself has internal excitation, system vibration and other phenomena. In order to increase the power density and increase the transmission speed, this method will undoubtedly increase the meshing frequency of the planetary transmission unit and aggravate the system vibration. The internal excitation will generate support dislocation and resonance of rotating components. , leading to early failure of planetary row components

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