Torque-Adjustable Pneumatic Tool Silencer Mechanism
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Solution Overview
Problem
Conventional pneumatic tools lack the ability to adjust output torque and rotation speed, as the only method to control compressed air flow is through pressing the trigger assembly, which does not allow for flexible operation.
Innovation Solution
A torque-adjustable pneumatic tool is designed with a torque-adjusting module that includes a silencer, an adjusting bolt, and a piston lid, allowing the user to change the R value by screwing the adjusting bolt, thereby adjusting the air flow and controlling the rotation speed and torque through a simple operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the trigger assembly is pressed to control compressed air flow, then the pneumatic tool can operate, but the output torque and rotation speed cannot be adjusted
Solution Approach 1:
The exhaust portion is designed with a movable piston lid that can be adjusted to different positions, transforming the static exhaust structure into a dynamic one. This allows the exhaust area to be variable, enabling adjustment of compressed air flow and consequently the output torque and rotation speed of the pneumatic tool
Solution Approach 2:
The invention changes the exhaust area parameter of the silencer by moving the piston lid to different positions. This parameter change directly affects the compressed air flow rate, allowing the user to adjust the output characteristics (torque and rotation speed) of the pneumatic tool without modifying the inlet conditions
2Adaptability or versatility
If the silencer exhaust portion is made movable to adjust air flow, then torque and rotation speed can be adjusted, but the device complexity increases
Solution Approach 1:
The movable piston lid serves multiple functions: it acts as a seal for the exhaust portion, a flow control valve, and a torque adjustment mechanism. By making this single component multi-functional, the invention achieves torque adjustment capability without proportionally increasing the overall device complexity
Solution Approach 2:
The piston lid acts as an intermediary element between the compressed air flow and the exhaust environment. By positioning this intermediary at the exhaust portion, the invention enables flow control with minimal structural modification to the overall pneumatic tool system
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
Enables instant adjustment of rotation speed and torque by modifying the air flow, overcoming the limitations of conventional pneumatic tools and providing a more flexible and user-friendly operation.
Implementation Method 1
compressed air may enter the body 91 via the inlet tunnel 913... flow through the holding chamber 911 to actuate the driving element 92... exhausted from the outlet tunnel 914
Implementation Method 2
The exhaust portion has a threaded hole and at least one exhaust hole that are separately disposed through the exhaust portion. The adjusting bolt is movably mounted to the threaded hole of the silencer from a side
Data Source
AI summary
A torque-adjustable pneumatic tool comprises a body, a trigger assembly, and a torque-adjusting module. The body has an outlet tunnel. The trigger assembly is mounted to the body. The torque-adjusting module is mounted to the body, communicates with the outlet tunnel, and has a silencer, an adjusting bolt, and a piston lid. The silencer has a recess and an exhaust portion communicating with the recess. The exhaust portion has a threaded hole and at least one exhaust hole that are separately disposed through the exhaust portion. The adjusting bolt is movably mounted to the threaded hole of the silencer from a side away from the body, and engages with the silencer through threads. The piston lid is fixed to the adjusting bolt and is able to enter the recess.