Mechanical Valve Seat Installation for Standardized Field Torque
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Solution Overview
Problem
Existing hydraulic insertion tools for valve seats require significant space and are difficult to use in the field, making it challenging to securely install valve seats in pumps with standardized torques.
Innovation Solution
A mechanical valve seat installation tool featuring a force conversion shaft, torque nut, head, and pump adapter, which allows for secure installation using mechanical torque without the need for hydraulic equipment, enabling on-site installation with standardized torques.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If hydraulic insertion tools are used for valve seat installation, then secure installation with standardized torques is achieved, but significant space is required and the tools are difficult to utilize in the field
Solution Approach 1:
The patent replaces the hydraulic system with a purely mechanical system. The installation tool uses a torque wrench to apply rotational force to a torque arm, which converts this rotation into linear force through a cam mechanism to press the valve seat against the pump body. This mechanical substitution eliminates the need for hydraulic equipment, making the tool portable and easy to use in field conditions while maintaining secure installation capability.
2Reliability
If hydraulic insertion tools are used for valve seat installation, then secure installation with standardized torques is achieved, but the tools require significant space
Solution Approach 1:
The installation tool is divided into separate modular components: a torque wrench, a torque arm, a cam mechanism, and a pressing element. This segmentation allows each component to be compact and enables easy assembly/disassembly for storage and transport. The modular design maintains the ability to apply standardized torques while significantly reducing the overall space footprint compared to integrated hydraulic systems.
3Ease of operation
If mechanical torque is used for valve seat installation, then on-site installation is enabled, but consistent force application must be ensured regardless of user strength
Solution Approach 1:
The cam mechanism transforms the rotational parameter (torque applied by the wrench) into a linear force parameter with a predictable relationship. By designing the cam geometry with specific dimensions and angles, the system ensures that a standardized torque input always produces the same pressing force on the valve seat, regardless of variations in user strength or application speed. This parameter transformation guarantees force consistency.
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 tool facilitates simplified and calibrated valve seat installation, ensuring adequate force application regardless of user strength, and allows for installation directly at the pump site without the need for hydraulic equipment.
Implementation Method 1
a torque nut secured to the force conversion shaft adjacent to the shaft front surface... the force conversion shaft moves along the central axis relative to the pump adapter
Data Source
AI summary
A valve seat installation tool is disclosed. The valve seat installation tool includes a force conversion shaft extending from a shaft front surface to a shaft rear surface along a central axis, a torque nut secured to the force conversion shaft adjacent to the shaft front surface, a head adjacent to the shaft rear surface and a pump adapter secured to the force conversion shaft between the torque nut and the head.