V-Type Crank Slider Block Intersecting Cylinders Compact Design
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Solution Overview
Problem
The existing crank circular slider mechanism faces challenges in compact design and assembly due to the need for sufficient cylinder axial length and complex spatial arrangement of V-type blocks, where adjacent cylinders intersect with the main journal hole, making it difficult to achieve compactness and easy mounting of cylinder sleeves.
Innovation Solution
A V-type block design with intersecting cylinders and a cylinder sleeve structure that includes a through hole for the crankshaft passage and an avoidance opening to facilitate assembly, allowing for overlapping cylinders to reduce the staggering gap and enable compactness, while the cylinder sleeve is designed to fit snugly around the piston and crankshaft, ensuring adequate reciprocating motion and easy assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If the cylinder axial length is increased to provide sufficient reciprocating range for the piston, then the reciprocating motion requirement is satisfied, but the overall device size increases and compactness is reduced
Solution Approach 1:
The patent applies dimensional change by arranging cylinders in a V-type configuration where adjacent cylinders intersect with the main journal hole in different spatial planes. This allows the cylinders to share the same axial space while maintaining sufficient reciprocating length, effectively utilizing three-dimensional space to reduce overall device volume without compromising the reciprocating motion requirement.
2Volume of moving object
If adjacent cylinders are arranged to intersect with the main journal hole to achieve compact V-type block design, then the device compactness is improved, but the assembly complexity increases due to difficult mounting of cylinder sleeves
Solution Approach 1:
The patent segments the cylinder structure into a cylinder body and a separately mountable cylinder sleeve. The sleeve is designed with a specific structure that includes positioning features and mounting holes, allowing it to be independently installed onto the piston assembly. This segmentation enables the compact intersecting cylinder arrangement while maintaining ease of assembly through modular installation.
Solution Approach 2:
The cylinder sleeve acts as an intermediary component between the piston and the cylinder body. It includes positioning structures that facilitate accurate alignment and mounting, serving as a mediator that simplifies the assembly process while enabling the compact intersecting cylinder configuration. The sleeve's design with mounting holes and positioning features makes it an intermediate element that bridges the gap between complex spatial arrangement and easy assembly.
3Reliability
If the cylinder sleeve is designed to fit snugly around the piston for adequate reciprocating motion, then the reciprocating motion quality is improved, but the manufacturing precision requirement increases
Solution Approach 1:
The patent applies local quality by providing guiding surfaces at specific locations on the cylinder sleeve and piston. These localized guiding surfaces are positioned at the ends of the reciprocating range to guide the piston motion, rather than requiring the entire cylinder sleeve to have high precision. This allows adequate reciprocating motion quality while reducing overall manufacturing precision requirements by concentrating precision requirements to critical local areas.
Data Source
AI summary
A V-type block of a crank circular slider mechanism, comprising a piston with a circular slider receiving hole and a circular slider received in the receiving hole, the block having a main journal hole and comprising a group of adjacent cylinders arranged in a V form intersecting in the position of the main journal hole, each of the cylinders in the group penetrating the main journal hole, wherein said cylinders each penetrate the main journal hole with an axial length beyond the main journal hole, which the length is long enough for providing a reciprocating range required for the reciprocating motion of the part of the piston located beneath the receiving hole of the circular slider.