Anti-Vibration Rubber Member in Driving Work Machine Cylinder
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Solution Overview
Problem
The existing driving work machines experience reduced workability due to vibration transmission from the tip tool to the housing, which is then felt by the operator's hand, affecting the efficiency of punching and drilling operations.
Innovation Solution
Incorporating an anti-vibration part, such as a rubber annular member, between the pushing part and the preventing part of the housing, to absorb and dampen the impact and vibration forces transmitted from the cylinder to the housing, thereby reducing the vibration and impact felt by the operator.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If the striking element collides with the intermediate element to transmit striking force to the tip tool, then the punching work capability is improved, but vibration is transmitted to the housing and operator's hand, reducing workability
Solution Approach 1:
The patent introduces a vibration isolation element as an intermediary component between the cylinder and the housing. This element acts as a mediator that allows the transmission of necessary mechanical forces while blocking the transmission of harmful vibrations to the housing and operator's hand, thus resolving the contradiction between power transmission capability and ease of operation
Solution Approach 2:
The patent converts the harmful vibration energy generated during striking operations into beneficial damping through the vibration isolation element. The element absorbs and dissipates the vibration energy, transforming what would be a harmful effect (vibration transmission) into a beneficial outcome (vibration reduction), thereby improving workability while maintaining striking force transmission
2Adaptability or versatility
If the cylinder is moved rearward by reactive force of the tip tool pressing against the workpiece, then the switching part moves rearward to switch operational state, but excessive rearward movement causes instability
Solution Approach 1:
The patent implements a preventing part that pre-establishes a physical limit to the rearward movement of the switching part. By providing this preliminary constraint, the system ensures that the switching part can move sufficiently to change operational states while preventing excessive movement that would compromise cylinder positioning stability, thus maintaining both adaptability and stability
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 anti-vibration part effectively reduces the vibration and impact forces transmitted to the housing, enhancing the workability and operability of the driving work machine by minimizing the disturbance to the operator's hand during both drill and hammer drill modes.
Implementation Method 1
a spring member arranged between the housing and the switching part and configured to urge the switching part to move forward
Implementation Method 2
an anti-vibration part is arranged at least either between the pushing part and the switching part or between the switching part and the preventing part
Implementation Method 3
absorb and dampen the impact and vibration forces transmitted from the cylinder to the housing
Data Source
AI summary
A workability of a driving work machine is improved by reduction in vibration transmitted to a housing. A driving work machine 10 includes: a cylinder 21 applying a rotational force to a tip tool; a piston 33 applying a striking force to the tip tool; a driving source generating a power; a switching part 61 making switching between at least two operational states including a rotational striking state of transmitting the power as a striking force and a rotational force to the tip tool and a rotational state of transmitting the power as the rotational force but not transmitting the power as the striking force to the tip tool; and a housing 12. The cylinder 21 includes a pushing part 46 pushing the switching part 61 rearward, the switching part 61 is able to switch an operational state of the cylinder 21 by the rearward movement caused by the pushing force of the pushing part 46, and a rubber annular member 72 serving as an anti-vibration part is arranged between the pushing part 46 and the preventing part 71.