Electric Dozer Blade Linkage for Compact Blade Lift Drive
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing hydraulic excavator systems rely solely on hydraulic pressure for raising and lowering the dozer blade, lacking alternative power sources for this function.
Innovation Solution
A dozer blade drive mechanism utilizing an electric motor as a motive power source, combined with a link mechanism to transmit torque for rotational motion, allowing the dozer blade to be raised and lowered.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If hydraulic pressure is used as the power source for raising and lowering the dozer blade, then the blade can be moved vertically, but the system requires complex hydraulic components and larger device size
Solution Approach 1:
The patent replaces the hydraulic power transmission system with an electric motor-driven mechanical transmission system. The electric motor (131) connects through a transmission mechanism (135) to the connection member (100), eliminating hydraulic pumps, valves, and fluid lines. This substitution reduces device complexity while maintaining power transmission capability for raising and lowering the dozer blade.
Solution Approach 2:
The patent extracts the hydraulic system components from the dozer blade drive mechanism and replaces them with electric motor components. By removing the hydraulic power source and transmission elements, the invention simplifies the overall system structure while achieving the same functional outcome of vertical blade movement through electric power transmission.
2Ease of operation
If hydraulic pressure is used to raise and lower the dozer blade, then the blade movement is achieved, but the required torque is large and the device size increases
Solution Approach 1:
The patent changes the power transmission parameters by using an electric motor with optimized torque characteristics instead of a hydraulic system. The transmission mechanism (135) incorporates gear ratios and mechanical advantage principles to reduce the input torque required from the electric motor (131), thereby downsizing the motive power generating device while maintaining full blade movement capability.
Solution Approach 2:
The patent implements a dynamic transmission system where the transmission mechanism (135) can adapt torque transmission based on operational requirements. The connection member (100) rotates around the torque central axis with optimized kinematic parameters, allowing efficient torque transmission that reduces the size of the electric motor while maintaining ease of blade operation.
3Adaptability or versatility
If hydraulic pressure is used as the sole power source, then the dozer blade can be raised and lowered, but the movable range is limited and the system lacks versatility
Solution Approach 1:
The patent makes the motive power generating device universal by using an electric motor that can provide controlled torque for various blade positions and operations. The transmission mechanism (135) and connection member (100) are designed with adjustable parameters that enable the system to achieve extended movable ranges and adapt to different operational conditions, replacing the single-function hydraulic system with a multi-functional electric drive 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 efficient and compact power transmission for dozer blade operation, reducing the required torque and enabling a larger movable range while using electric power, thus downsizing the motive power generating device.
Implementation Method 1
a motive power generating device including an electric motor serving as a drive source, the motive power generating device being configured to generate torque around a torque central axis parallel to a rotation central axis of the connection member
Implementation Method 2
a link mechanism configured to transmit the torque generated by the motive power generating device as a rotational motion of the dozer blade around the rotation central axis
Implementation Method 3
The dozer arm rotates around the connection point to the frame
Data Source
AI summary
A dozer blade drive mechanism includes: a connection member rotatably connected to a vehicle body of a construction machine at a first connection point, the connection member being capable of having a dozer blade mounted to a second connection point opposite to the first connection point; a motive power generating device including an electric motor serving as a drive source, the motive power generating device being configured to generate torque around a torque central axis parallel to a rotation central axis of the connection member; and a link mechanism configured to transmit the torque generated by the motive power generating device as a rotational motion of the dozer blade around the rotation central axis. The torque central axis is located between the dozer blade and a middle of a line segment connecting the first connection point and the second connection point.