Hydraulic Hammer Chisel Angle Control
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Solution Overview
Problem
Hydraulic hammers in construction often fail to operate at optimal angles, leading to damage such as chisel bending or housing abrasion, due to improper orientation during surface excavation.
Innovation Solution
A method involving sensors on the hydraulic hammer's housing to determine the angle between the chisel and the surface, generating signals for distance projections, and reorienting the chisel using actuators until it reaches the optimal angle of 90 degrees, even on tilted surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the hydraulic hammer operates without angle adjustment, then the device complexity is reduced, but the chisel and housing suffer from damage such as bending and abrasion
Solution Approach 1:
The system performs preliminary angle detection using sensors before the chisel engages the surface, calculates the required adjustment angle, and pre-adjusts the hydraulic hammer orientation to achieve optimal 90-degree contact. This preliminary action prevents damage before it occurs rather than reacting to damage after it happens.
Solution Approach 2:
The system continuously monitors the angle between the chisel and surface using sensors, compares the measured angle with the optimal angle, and automatically adjusts the hydraulic hammer orientation based on this feedback loop. This closed-loop control ensures the chisel maintains optimal contact angle during operation.
2Reliability
If sensors and control systems are added to adjust the chisel angle, then the chisel operates at optimal angle preventing damage, but the device complexity increases
Solution Approach 1:
The system replaces manual mechanical angle adjustment with automated sensor-based detection and control. Optical or proximity sensors detect the surface angle, and an electronic control system automatically adjusts the hydraulic hammer orientation, eliminating the need for manual measurement and adjustment by the operator.
Solution Approach 2:
The hydraulic hammer system performs self-adjustment of its operating angle using integrated sensors and automatic control mechanisms. The system detects its own orientation relative to the surface and autonomously corrects any deviation from the optimal angle without requiring external intervention or complex manual procedures.
Data Source
AI summary
A hydraulic hammer for a working machine configured for digging a surface includes a housing, a chisel, sensors, and a controller. The housing is coupled to the working machine. The chisel is partially enclosed by the housing and extendable from the housing for digging the surface at a contact location. Each of the sensors is configured for generating a signal indicative of a projecting distance between one of the sensors and the surface. The controller is configured for receiving the signals, determining an angle between the chisel and a plane substantially tangent to the contact location, and reorienting the chisel so that the chisel is substantially orthogonal to the contact location with the angle at substantially ninety degrees.