Split Actuator Mounting for Mining Machines Under Side-Load Bending
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Solution Overview
Problem
Existing actuator mounting arrangements in mining machines, such as hydraulic cylinders, suffer from reduced lifetime due to bending moments caused by sideways movement of booms, which complicates assembly and maintenance.
Innovation Solution
An actuator mounting arrangement featuring a dual recess system with matching holes and protuberances that allow for relative movement between the actuator and mounting unit, reducing bending moments and facilitating easy assembly and maintenance by distributing forces effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the actuator is rigidly mounted to the frame with fixed mounting positions, then the structural stability is improved, but bending moments are generated during sideways movement that reduce the actuator lifetime
Solution Approach 1:
The mounting arrangement allows dynamic adjustment of the actuator position along the longitudinal axis through the recess-protuberance interface. This dynamic capability enables the actuator to accommodate sideways movements and bending moments without rigid constraints, resolving the contradiction between structural stability and actuator lifetime by providing controlled movement freedom while maintaining overall structural integrity.
2Ease of manufacture
If traditional fixed mounting arrangements are used, then assembly is simplified, but maintenance becomes difficult due to rigid connections and bending moment issues
Solution Approach 1:
The mounting arrangement is segmented into separate components: a mounting unit with recesses, an actuator with protuberances, and detachable mounting bolts. This segmentation allows easy assembly by simply joining the components together and facilitates maintenance by enabling straightforward detachment and replacement of the actuator, resolving the contradiction between assembly simplicity and maintenance difficulty.
3Device complexity
If the actuator is mounted with fixed positioning, then the mounting structure is simpler, but the actuator cannot accommodate sideways movements that cause bending moments
Solution Approach 1:
The mounting structure incorporates recesses with specific geometric parameters that allow controlled movement of the actuator along the longitudinal axis. This parameter-based design enables the structure to accommodate sideways movements and reduce bending moment exposure without requiring overly complex mounting mechanisms, resolving the contradiction between structure complexity and harmful factor reduction.
Data Source
Figure 1a~1c
Figure 2a~2c
Figure 3a~3c
AI summary
An actuator mounting arrangement including: a mining machine (100) having a frame (104), at least one mounting unit (10). The mounting unit (10) comprising: a first mounting part (11) having a recess (13) for partially receiving a protuberance (2) extending from an outer surface (19) of the actuator (1), and a second mounting part (12) having a recess (14) for partially receiving a protuberance (2) extending from the outer surface (19) of the actuator (1), the two partial recesses (13, 14) facing each other and forming a support surface for the protuberance (2), wherein each of the first mounting part (11) and the second mounting part (12) comprises a through hole (20, 21) for receiving the actuator (1) so that the first mounting part (11) and the second mounting part (12) encircles the actuator (1) in a plane transverse of an axis (L) of the actuator in a mounted state and the actuator (1) extends through the through holes (20, 21) of the first mounting part and the second mounting part of the mounting unit (10), wherein the first mounting part (11) and the second mounting part (12) have matching holes (16, 17) for mounting bolts (15) with which the first mounting part and the second mounting part are detachably mounted together.