Split Clamping Ring for Forklift Piston Rod
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Solution Overview
Problem
Retrofitting a conventional forklift truck with an adjustable stop assembly for stroke limitation requires significant operational downtime and is cost-intensive due to the need for disassembly and reassembly of the lifting apparatus.
Innovation Solution
The adjustable stop assembly features split diametrically into two ring halves for the clamping and threaded rings, allowing for easy attachment without disassembling the lifting apparatus, with connection apparatuses such as tensioning rings or screws enabling secure clamping and adjustment, enabling the assembly to be retrofitted on various forklift truck types without downtime.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the lifting apparatus is disassembled to install the adjustable stop assembly, then the stop assembly can be properly installed on the piston rod, but operational downtime increases and installation cost increases
Solution Approach 1:
The clamping ring is divided into two semicircular clamping ring halves that can be installed separately on the piston rod and then joined together. This segmentation allows the stop assembly to be installed without disassembling the lifting apparatus, as the halves can be fitted around the existing piston rod structure and secured with joining apparatus, thereby eliminating operational downtime while ensuring reliable installation.
2Reliability
If the lifting apparatus is disassembled to install the adjustable stop assembly, then the stop assembly can be properly installed on the piston rod, but installation cost increases
Solution Approach 1:
The clamping ring is divided into two semicircular clamping ring halves that can be installed separately on the piston rod and then joined together. This segmentation allows the stop assembly to be installed without disassembling the lifting apparatus, as the halves can be fitted around the existing piston rod structure and secured with joining apparatus, thereby eliminating operational downtime while ensuring reliable installation.
3Adaptability or versatility
If the stop assembly is made adjustable, then stroke limitation can be optimized for different conditions, but device complexity increases
Solution Approach 1:
The threaded ring is screwed onto the outer threaded section of the clamping ring, creating a nested configuration where one adjustable component is integrated within another. This nesting approach allows for stroke limitation adjustment through simple threading mechanics without requiring additional complex mechanisms, maintaining structural simplicity while providing adaptability for different operating conditions.
Data Source
AI summary
The invention concerns an adjustable stop assembly, for limiting a stroke, designed for a piston-cylinder unit comprising a cylinder and a piston having a rod, said stop assembly serving to limit the stroke of a lifting device on a forklift truck. Said assembly has a clamping ring (2) axially slidable and lockable on the piston rod, comprising, in one region of its external periphery, a threaded portion. Said assembly also comprises a threaded ring (3) which can be screwed on the threaded portion of the clamping ring and whereof the side facing the cylinder serves as stop thereon.