Belt Pumping Unit Rack Gear Moving Assembly
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Solution Overview
Problem
Existing belt pumping units in oilfields face challenges with inefficient and labor-intensive movement methods, including complex hydraulic systems, instability, and high failure rates, particularly due to the need for frequent repositioning and storage of moving wheel assemblies.
Innovation Solution
A belt pumping unit moving device featuring a rack gear system with a motor-driven pinion gear and vertically adjustable clevis bracket and wheel assemblies, allowing for smooth, stable, and continuous horizontal movement without the need for frequent repositioning or storage of moving wheel assemblies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a hydraulic jack and hydraulic push rod system is used to move the belt pumping unit, then the unit can be moved horizontally, but the system becomes complex and costly with high failure rates requiring frequent repositioning
Solution Approach 1:
The patent removes the complex hydraulic system (jack, push rod, pump, hoses) and replaces it with a simplified mechanical wheel assembly that rolls on the ground. The wheel assembly includes a wheel, axle, and handle that can be directly attached to the pumping unit base, eliminating unnecessary hydraulic components while maintaining movement functionality.
Solution Approach 2:
The patent employs simple, inexpensive mechanical components (wooden or metal wheels, axles, handles) instead of expensive hydraulic systems. These basic mechanical elements are easier to manufacture, maintain, and replace, reducing overall system cost and complexity while achieving the same movement function.
2Productivity
If a hydraulic push rod with roller support is used, then the pumping unit can be moved, but the operation is unstable and has high failure rate
Solution Approach 1:
Instead of using a push rod that pushes the unit from below, the patent inverts the approach by using wheels that roll on the ground surface. The wheel assembly attaches to the base and rolls forward, providing stable and reliable movement without the instability and failure issues of the hydraulic push rod system.
3Length of stationary object
If multiple disconnections and repositionings of hydraulic cylinder are required, then the machine can be moved significant distance, but the operation becomes time-consuming and laborious
Solution Approach 1:
The wheel assembly is pre-attached to the pumping unit base before movement begins. The handles extend forward to provide leverage for pulling the unit along. This preliminary setup eliminates the need for repeated disconnections and repositioning of hydraulic components during the movement process, saving time and labor.
4Adaptability or versatility
If a tractor vehicle is used to drag the machine, then the unit can be moved away from wellhead, but the method is time-consuming and lacks stability
Solution Approach 1:
The pumping unit is equipped with its own wheel assembly and handle system, allowing it to be moved by hand or with minimal assistance. This self-service capability eliminates the need for external tractor vehicles, providing stable and reliable movement while reducing time and labor requirements.
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 solution provides a mechanically simple, cost-effective, and highly reliable method for moving belt pumping units, reducing mechanical failure rates and eliminating the need for complex hydraulic systems, enabling continuous horizontal movement with stable operation and efficient repositioning.
Implementation Method 1
A rack gear is attached to and supported by a lower base. The upper base is equipped with a motor power unit which turns a pinion gear which meshes with the rack gear to drive the upper base horizontally
Data Source
AI summary
A belt pumping unit moving assembly incorporating a lower fixed base. The assembly further incorporates a rack gear fixedly attached to the lower fixed base. The assembly further incorporates an upper base overlying the lower fixed base wherein the belt pumping unit is fixedly attached to the upper base. The assembly further incorporates a motor and pinion gear combination wherein the motor is mounted upon the upper frame and the pinion gear is engageable with the rack gear. The assembly further incorporates a plurality of wheels or rollers mounted upon the upper base wherein, upon engagement of the pinion gear with the rack gear and upon actuation of the motor, the upper base and the belt pumping unit rollably move along the lower base.