Hydrobase Subassembly Provisional Fixation and Angular Orientation
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Solution Overview
Problem
Current hydraulic motor subassemblies, or hydrobases, are difficult to assemble correctly due to weight and blind assembly requirements, leading to risks of loss, deterioration, pollution, and poor assembly during installation on a shaft or bearing.
Innovation Solution
A hydrobase subassembly with provisional fixation means for the cylinder block and access means for the distributor through the cover, allowing angular orientation and fixing on a shaft, along with pre-positioning and fixing mechanisms for the cam, to facilitate easier assembly and prevent pollution during transport and installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the hydrobase is delivered as a collection of unassembled pieces, then it is easier to transport and store, but the risk of loss, deterioration, pollution, and poor assembly increases
Solution Approach 1:
The patent combines multiple separate components (cylinder block, cam, distributor, cover) into a single pre-assembled hydrobase unit. This merging allows the components to be transported and stored together as one unit, eliminating the risks associated with handling separate pieces while maintaining ease of transport.
Solution Approach 2:
The patent performs preliminary assembly of the hydrobase components before delivery. The cylinder block, cam, distributor, and cover are pre-positioned and secured together, so that when the user receives the unit, the assembly work has already been completed, reducing the risk of poor assembly by the user.
2Reliability
If the hydrobase is pre-assembled in a sealed form, then the risk of pollution and deterioration during transport is reduced, but the complexity of the assembly process increases
Solution Approach 1:
The patent uses a cover with sealing elements (gaskets, O-rings, or other sealing films) to enclose the hydrobase components. This flexible sealing approach protects the internal components from pollution and deterioration during transport while maintaining a relatively simple assembly structure that does not require complex sealing mechanisms.
3Stability of the object's composition
If the cylinder block is firmly fixed on the cover, then the assembly is more stable during transport, but the ability to adjust angular orientation during assembly on the shaft is reduced
Solution Approach 1:
The patent employs adjustable or removable fixing means (such as adjustable bolts, clamps, or positioning mechanisms) that can be set to different angular positions. During transport, these fixing means provide stable firm fixation, but during assembly on the shaft, they can be adjusted or temporarily loosened to allow angular orientation adjustment, then re-fixed in the correct position.
4Ease of operation
If access means to the distributor are provided through the cover, then angular orientation during assembly is facilitated, but the risk of pollution during assembly increases
Solution Approach 1:
The patent extracts or removes the cover temporarily during the angular orientation adjustment phase, allowing direct access to the distributor for alignment purposes. After the angular orientation is correctly established, the cover is replaced and sealed to protect the distributor from pollution during subsequent operations.
Data Source
AI summary
The present invention relates to a subassembly for forming a hydraulic motor after assembly onto an assembly including a shaft, said subassembly including a cover forming a housing element, a multilobe cam, a cylinder block opposite the cam, pistons guided so as to slide radially within the respective cylinders of the cylinder block and bearing on the lobes of the cam, and a valve intended to apply pressurized fluid to said pistons in series, wherein said subassembly includes means for temporarily attaching the cylinder block to the cover and means for accessing an element of the valve through the cover in order to enable, during installation, the angular positioning of said element with respect to the shaft, followed by the attachment thereof to the shaft. The present invention also relates to a method for assembling such a hydrobase.