Can Body Maker Linear Motion Mechanism With Overlapping Gears
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Solution Overview
Problem
Conventional reciprocating linear motion mechanisms for can body makers face inefficiencies in production, bearing lifespan, and manufacturing costs due to complex assembly processes and inadequate oil supply to bearings, leading to increased maintenance time and reduced production efficiency.
Innovation Solution
A redesigned reciprocating linear motion mechanism with overlapping internal and external gears, separate manufacturing of components, and an integrated oil supply system that stabilizes bearing lubrication, reducing the bulkiness and complexity of the mechanism while enhancing assembly and maintenance workability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the ram shaft connection part and external gear are integrally formed as a single member, then the structural strength is improved, but the manufacturing cost increases and maintenance becomes difficult
Solution Approach 1:
The patent divides the previously integral member (ram shaft connection part and external gear) into separate components. The external gear is now a separate member that can be manufactured independently and assembled to the first rotation body, reducing manufacturing complexity and cost while allowing easier maintenance and replacement without replacing the entire assembly.
2Strength
If the ram shaft connection part and external gear are integrally formed as a single member, then the structural strength is improved, but the assembly and maintenance time increases
Solution Approach 1:
By segmenting the external gear from the ram shaft connection part, the patent enables independent assembly and maintenance of the external gear. This allows the external gear to be replaced or serviced without disassembling the entire mechanism, significantly reducing maintenance time and improving operational efficiency.
3Device complexity
If oil is not stably supplied to the bearing, then the device complexity is reduced, but the bearing lifespan decreases
Solution Approach 1:
The patent implements a self-lubrication system where the bearing is supplied with oil through the rotation of the first rotation body itself. The bearing's inner race is formed with an oil supply hole that receives oil from the first rotation body's rotation, eliminating the need for complex external lubrication systems while ensuring stable oil supply and extending bearing lifespan.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution improves production efficiency by reducing power consumption, extending bearing lifespan, and simplifying assembly and maintenance, resulting in increased operational time and cost-effectiveness.
Implementation Method 1
a second rotation body (22) including an external gear (23) meshing with the internal gear (16) about a second center axis (C2)
Implementation Method 2
a second bearing (32) connecting the convex part (25) and the recess (27) to be relatively rotatable around the second center axis (C2)
Data Source
AI summary
A reciprocating linear motion mechanism for a can body maker includes: a housing including an internal gear; a first rotation body; a first bearing connecting the housing and the first rotation body; a convex part protruding toward one side of an axis direction in the axis direction; a second rotation body including an external gear meshing with the internal gear; a recess recessed toward onside in the axis direction from a surface facing the other side of the second rotation body in the axis direction and into which the convex part is inserted; a second bearing connecting the convex part and the recess; and a ram shaft connection part connected to the second rotation body and moved linearly in a reciprocating manner, wherein the internal gear, the external gear, the recess, the second bearing, and the convex part overlap each other.