Reciprocating Pump Turning and Barring Tool for Grease Tip Protection
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Solution Overview
Problem
Existing methods for turning reciprocating pumps during maintenance, such as using pry bars or large pipes, risk damaging the drive line grease tip and U-joint, leading to improper lubrication and downtime.
Innovation Solution
A tool comprising a core ring, pin, and sleeve that allows for safe and precise turning of the pump by engaging and disengaging with the pinion shaft without disassembling the pump, using a sliding mechanism to connect and rotate the components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a pry bar or large pipe is used to turn the reciprocating pump by hand, then the pump can be turned during maintenance, but the drive line grease tip may be sheared off, rendering the U-joint unable to be greased
Solution Approach 1:
The patent introduces a barring tool as an intermediary device between the operator and the pump shaft. The tool includes a bar that engages with the shaft and a handle mechanism that allows controlled application of turning force without directly contacting the grease tip area, thereby protecting the grease tip while enabling the turning operation
Solution Approach 2:
The barring tool is divided into separate functional components: a bar portion for engaging the shaft, a handle portion for operator input, and a protective cover or shield portion that isolates the grease tip area. This segmentation allows each component to perform its specific function while protecting vulnerable areas
2Ease of repair
If the grease tip is damaged and the U-joint is decoupled for replacement, then the pump can be maintained, but the reciprocating pump does not perform its primary function during maintenance, increasing downtime
Solution Approach 1:
The barring tool is designed to enable turning operations before any disassembly or repair work begins. By providing a safe and reliable method to turn the pump shaft while maintaining the grease tip intact, the tool allows maintenance personnel to perform necessary adjustments or inspections without needing to decouple and replace the U-joint, thereby reducing overall maintenance downtime
3Ease of operation
If a pry bar or pipe is used to turn the pump, then the turning operation can be performed, but the U-joint may not be properly lubricated
Solution Approach 1:
The barring tool serves as a protective intermediary that allows the turning operation to be performed while maintaining proper clearance and alignment between the shaft and grease tip. The tool's design ensures that the grease tip remains accessible and properly positioned, allowing for correct lubrication during the turning operation
Data Source
AI summary
A tool including a core ring having a first end, an opposing second end, and a first radial engagement component. The tool also includes a pin including a shaft having first and second sides. The first side of the shaft is disposed at least adjacent an opening through the ends of the core ring. A second radial engagement component of the pin is configured to engage with the first radial engagement component of the core ring. The second side of the shaft extends axially outwardly from the second end of the core ring. A sleeve is connected to the core ring. The first side of the shaft of the pin is slidable with respect to the sleeve. The sleeve and the core ring together are axially shiftable relative to the pin. At least a portion of the sleeve extends axially outwardly from the first side of the core ring.