Bearing outer ring press fitting locking mechanism for transmission shell

Abstract

The invention relates to device for machining a transmission shell, in particular to a bearing outer ring press fitting locking mechanism for the transmission shell. The bearing outer ring press fitting locking mechanism for the transmission shell comprises a compression strut. The outer diameter of the upper portion of the compression strut is larger than the outer diameter of other positions, and thus a step is formed in the compression strut. A pressure head is arranged at the lower end of the compression strut. A sliding sleeve is sleeved on the pressure head. An annular flanging bending inwards is arranged in the upper end of the sliding sleeve. The annular flanging is located above the pressure head. A resetting spring is sleeved on the segment, between the annular flanging and the compression strut step, of the compression strut. The outer diameter of the lower end of the pressure head is smaller than the outer diameter of other positions, and thus a step is formed in the lowerend of the pressure head. The bearing outer ring press fitting locking mechanism for the transmission shell is characterized in that strip-shaped through grooves are uniformly distributed along the circumferential direction of the lower portion of the sliding sleeve in the lower portion of the sliding sleeve. Clamping strips are arranged in the strip-shaped through grooves correspondingly. The middle of the clamping strips are hinged to the strip-shaped through grooves. Stop blocks are fixed to the portion, corresponding to the upper ends of the clamping strips, of the outer wall of the sliding sleeve. Clamping springs are arranged between the upper ends of the clamping strips and the sliding sleeve. By means of the bearing outer ring press fitting locking mechanism for the transmission shell, the production efficiency is higher, the qualification rate of transmissions is higher, and the service life of the pressure head is longer.

Description

technical field [0001] The invention relates to a transmission housing processing device, in particular to a transmission housing bearing outer ring press-fit locking mechanism for pressing the bearing outer ring into the transmission housing. Background technique [0002] The transmission is a set of speed change devices used to coordinate the engine speed and the actual driving speed of the wheels, and is used to exert the best performance of the engine. The transmissions all have housings, and the transmission housings all need to be pressed into the bearing outer rings by the bearing outer ring press-fitting mechanism. [0003] At present, the press-fitting mechanism for the outer ring of the transmission housing bearing used in the industry includes a vertically arranged pressure rod, and the outer diameter of the upper part of the pressure rod is larger than that of other parts, thereby forming a step on the pressure rod. A columnar pressure head is concentrically fix...

AI Technical Summary

Problems solved by technology

This press-fitting mechanism uses powerful magnets to absorb and fix the outer ring of the bearing. When the pressure rod changes from fast downward to slow downward, the outer ring of the bearing is easy to fall off due to inertia, reducing production efficiency, and the strength of the strong magnet is low. , easy to break, causing the outer ring of the bearing to fail to fix, easy to fall off, and further reduce production efficiency

At the same time, iron filings will be adsorbed on the powerful magnet during use, and these iron filings will enter the gearbox housing with the pressure head, reducing the qualified rate of the gearbox

In addition, the installation of a powerful magnet results in a smaller effective contact area between the indenter and the inner ring of the bearing, the indenter is easily deformed, and the service life is shorter

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