Telescopic Dual-Trunnion Cylinder for Lightweight Dump Bed Lifting
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Solution Overview
Problem
Existing dump truck trailers face inefficiencies in lifting heavy loads, are prone to mechanical issues, and have high maintenance costs due to complex hydraulic systems that increase weight and reduce payload capacity.
Innovation Solution
A telescopic cylinder dual trunnion port system is integrated into the trailer frame, comprising a cylinder mount frame, telescopic cylinder, and cylinder top mount plate, allowing for easy lifting and tilting of the bed frame with reduced weight and mechanical complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If conventional hydraulic systems with multiple tilt positions are used, then lifting capacity and control precision are improved, but system weight increases and payload capacity decreases
Solution Approach 1:
The hydraulic cylinder is divided into multiple telescopic stages (first stage, second stage, third stage) that can extend and retract sequentially. This segmentation allows the system to achieve high lifting capacity when needed while maintaining a compact, lightweight retracted profile for normal operation, thus resolving the contradiction between lifting capacity and system weight.
2Reliability
If reinforced frames and stabilizers are added to improve safety, then stability and safety are improved, but overall weight increases and fuel efficiency decreases
Solution Approach 1:
The stabilizer function is merged with the existing telescopic cylinder structure by incorporating stabilizer arms that utilize the cylinder's mounting points and structural elements. This integration provides enhanced stability and safety without adding separate reinforced frames, thus avoiding the weight penalty while maintaining reliability.
3Ease of operation
If complex safety features and multi-position tilt controls are added, then control precision and safety are improved, but device complexity increases and maintenance costs increase
Solution Approach 1:
The system uses the dynamic extension and retraction of telescopic cylinder stages to achieve multiple tilt positions. Rather than complex mechanical multi-position mechanisms, the hydraulic system naturally provides position control through staged extension, simplifying the overall device while maintaining operational precision and safety.
4Device complexity
If basic hydraulic pistons are used, then device simplicity is maintained, but lifting capacity is insufficient and lifting speed is slow
Solution Approach 1:
The patent employs a telescopic hydraulic cylinder system with multiple stages that leverages hydraulic pressure multiplication. Each telescopic stage provides mechanical advantage, allowing the system to achieve high lifting capacity and fast lifting speed while maintaining relatively simple hydraulic circuitry compared to alternative high-force mechanical systems.
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 system enables efficient lifting of heavier loads, maximizes unloading capacity, reduces mechanical issues, and lowers maintenance costs while maintaining a lightweight design.
Implementation Method 1
The improvement mechanism for a dump truck trailer allows tilting of the bed frame for unloading through hydraulic pressure
Data Source
AI summary
The present invention is an improvement mechanism and a method for a dump truck trailer to raise and lower the dump bed frame for easy disposal of material. The improvement mechanism comprises a cylinder mount frame, a telescopic cylinder and a cylinder top mount plate. The cylinder mount frame is attached to the trailer frame and the cylinder top mount plate is attached to the underside of the existing dump bed frame. The telescopic cylinder is attached to the cylinder mount frame by means of a trunnion mount and a plurality of fastening elements and to the cylinder top mount plate by means of the cylinder flush plate and the plurality of fastening elements.