Construction Machine Pump Mounting Device for Quick Replacement
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Solution Overview
Problem
Existing construction machines with progressive cavity pumps require lengthy and error-prone replacement processes, necessitating partial disassembly and posing risks of misalignment and leakage.
Innovation Solution
A construction machine with a mounting device featuring a fixed and movable part, including cradles and a blocking member, allows for easy installation and uninstallation of the progressive cavity pump without disassembling the distribution module, enabling quick and precise replacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the progressive cavity pump is mounted using a rigid mounting device with tie rods, then the pump is securely held in compression between flanges, but the replacement process becomes lengthy and complex requiring partial disassembly
Solution Approach 1:
The mounting device is segmented into a fixed part secured to the frame and a movable part secured to the distribution module, allowing independent movement of the distribution module to release the pump without dismantling the entire mounting structure
Solution Approach 2:
The mounting device transitions from a completely rigid structure to a dynamic system where the movable part can move relative to the fixed part, enabling quick release of the pump by moving the distribution module without full disassembly
2Stability of the object's composition
If the pumping device is made integral to the construction machine, then structural stability is improved, but adaptability and ease of replacement are reduced
Solution Approach 1:
The mounting device is divided into fixed and movable parts, creating a segmented structure that maintains overall structural integrity while allowing the distribution module to move independently for pump replacement
Solution Approach 2:
The mounting system incorporates dynamic elements where the movable part can shift position relative to the fixed part, enabling the pump to be released without compromising the structural stability of the overall construction machine
3Manufacturing precision
If external equipment is used to center and hold the new pumping device during assembly, then positioning accuracy is improved, but device complexity and operation difficulty increase
Solution Approach 1:
The mounting device includes built-in centering and positioning features that are prepared in advance, allowing the pump to be automatically centered and held in place during assembly without requiring external equipment
Solution Approach 2:
The mounting device performs its own centering and positioning functions through its inherent structure, eliminating the need for external equipment and reducing operational complexity
Data Source
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AI summary
A construction machine for distributing a fluid product, such as screed, on a construction site, and a method for replacing the progressive cavity pump of such a construction machine, comprising a frame (10) with an upstream flange (11a) for communicating with an upstream end of a progressive cavity pump, a downstream module (30) with a downstream flange (31a) for communicating with a downstream end of the progressive cavity pump, and a mounting device (40) configured for mounting the progressive cavity pump between the upstream flange (11a) and the downstream flange (31a) of the downstream module (30), wherein the mounting device (40) comprises a fixed part (41) integral with the frame (10), a moving part (51) integral with the downstream module (30) and movably mounted on the fixed part (41), and a locking member (57) configured to lock or release the mobility of the moving part (51) relative to the fixed part (41).