Handheld Hydraulic Power Tool for Concrete Anchoring
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Solution Overview
Problem
Existing bolt tensioning methods require complex hydraulic systems and tools, making it difficult to achieve precise tensioning in a handheld and efficient manner, especially in applications like concrete anchoring.
Innovation Solution
A handheld hydraulic power tool with an electric motor and hydraulic pump that pressurizes fluid to apply tension to bolts or anchors, featuring a piston and anvil assembly for efficient tensioning and anchoring in concrete surfaces, allowing for precise control and ease of use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If traditional hydraulic bolt tensioning systems are used, then sufficient tensioning force can be achieved, but the system complexity and portability are compromised
Solution Approach 1:
The patent combines the electric motor, hydraulic pump, and control systems into a single integrated handheld unit. The motor drives the pump which pressurizes hydraulic fluid that acts on a piston to generate tensioning force on the bolt, eliminating the need for separate external hydraulic power sources and reducing overall system complexity.
Solution Approach 2:
The patent replaces traditional mechanical tensioning mechanisms with a hydraulic actuation system. The electric motor converts electrical energy to mechanical rotation, which drives the hydraulic pump to convert mechanical energy to hydraulic pressure, which then acts on the piston to generate linear tensioning force, providing a more compact and controllable system.
2Force
If traditional bolt tensioning tools are used, then adequate tensioning capability is achieved, but portability and ease of operation are reduced
Solution Approach 1:
The patent integrates the power source (electric motor), fluid power generation (hydraulic pump), and actuation mechanism (piston-cylinder assembly) into a single handheld tool, making the system portable and easy to transport to different work locations without requiring external hydraulic power sources.
Solution Approach 2:
The handheld tool is self-contained with an integrated battery-powered motor and hydraulic system, allowing it to operate independently without external power sources or complex setup procedures, thereby improving ease of operation and portability.
3Measurement precision
If precise tensioning control is implemented, then accurate bolt preload is achieved, but system complexity increases
Solution Approach 1:
The patent incorporates sensors that monitor hydraulic pressure, piston displacement, and motor parameters, feeding this information back to a control system that adjusts the hydraulic fluid delivery to maintain the desired bolt preload, achieving precise tensioning control through closed-loop feedback.
Solution Approach 2:
The patent uses electronic control and sensing systems to replace traditional mechanical tensioning measurement methods, providing more precise and accurate measurement of bolt preload through electronic sensors and digital signal processing.
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 efficient and precise tensioning of bolts and anchoring in concrete, reducing the complexity of existing systems and improving user experience with a compact, portable solution.
Implementation Method 1
an electric motor positioned within the housing
Implementation Method 2
the pump being driven by the motor to pressurize hydraulic fluid stored within the housing or a remote reservoir
Implementation Method 3
an installation assembly configured to seat an anchor into a concrete work surface in response to an applied force by the pressurized hydraulic fluid
Data Source
AI summary
A handheld hydraulic power tool includes a housing, an electric motor positioned within the housing, a hydraulic pump positioned within the housing, the pump being driven by the motor to pressurize hydraulic fluid stored within the housing or a remote reservoir, and an installation assembly configured to seat an anchor into a concrete work surface in response to an applied force by the pressurized hydraulic fluid.