Abstract
This thesis is a piece of explanation of design that about the bearing and self-centering device of the specialized and two-headed boring machine to process the big diameter roller.
Firstly, these papers briefly summarize the background and development present situation of the topic. It also analyze the structure and processing manufacturability of cylinder and doffer rollers which was processed by specialized and two-headed boring machine.
Secondly, according to the performance requirement of the bearing and self-centering device to make the project block in, then on the basis of the project analysis make out a relatively reasonable project. The cylinder and doffer rollers are located by the V-shaped surface and the drive mode is reducer motors gear transmission. Self-centering device adopt the removable tank body with double rectangular guide rail to realize three axis remove in the meantime. It also adopts hydraulic cylinder driving mechanism drive linkage mechanism to realize the three axes rotate meanwhile. At the same time, makes a calculation and choice to the motor and hydraulic cylinder used in the project.
Finally, checks the strength of drive shaft and bearing life of bearing device, summarizes this designing project’s advantage and innovations, analyzes the problems in the project and put up with improving direction.
Key words: bearing device self-centering device six-connecting rod mechanism
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