Shaft and rod micro-clearance direct-connection technology

Abstract

The invention relates to the field of mechanical transmission, in particular to a shaft and rod micro-clearance direct-connection technology, which is applied to situations having certain requirements for space and reduction of energy consumption. The shaft and rod micro-clearance direct-connection technology includes that a hole matched with a non-cylindrical shaft (which can be D-shaped or double-D-shaped) is manufactured at one end of a rod, the circle center of the camber surface of the hole is concentric with the rod, and a clearance is reserved between the hole and the shaft, so that error caused by deviation and included angle between the center line of the shaft and the center line of the rod can be eliminated, shake of the rod and defective stress are avoided, stability and efficiency in transmission are improved greatly. Since the shaft and the rod are connected directly without any intermediate link, space occupation is minimized, and the problem of doubled error caused in conventional connection of the shaft and the long rod is solved.

Description

technical field [0001] The invention relates to the field of mechanical transmission, and is applied to situations where space is required and energy loss needs to be reduced. Background technique [0002] With the continuous improvement of mechanical automation, mechanical transmission has become an indispensable element, and the efficiency, complexity and reliability of transmission have become the focus of everyone's attention. The more common transmission methods are: belt drive, chain drive and The characteristic of gear transmission is that it can carry out power transmission and direction change, and at the same time alleviate the vibration and deviation during transmission. However, there is an intermediate structure, which is more difficult for limited space. The typical example is the power transmission between the motor drive shaft and the long rod. Is it feasible to directly connect the drive shaft to the long rod? Practice has proved that there is a little jitt...

AI Technical Summary

Problems solved by technology

The method is to make a hole matching the shaft at the end of the rod, requiring the shaft to be non-cylindrical (such as D-shaped, double D-shaped), the center of the arc surface of the hole is concentric with the rod, and a gap is reserved between the hole and the shaft to eliminate the shaft. There is a deviation caused by the deviation and angle between the center line and the center line of the rod, which eliminates the deviation caused by the radial runout and axial movement of the shaft, eliminates the adverse factors caused by the assembly positioning deviation, and solves the problem of direct connection between the shaft and the long rod. The problem of multiplying errors

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