Quarrying Machine Parallelogram Boom and Curved Shovel
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Solution Overview
Problem
Existing tunneling and loading machines face inefficiencies in conveying excavated rock, as the rock material often brushes past or falls out of the backhoe, requiring laborious rework to clean the working face and joints, making complete removal of rock material difficult and costly.
Innovation Solution
A tunneling and loading machine with a parallelogram arrangement of levers and a curved support arm for horizontal and vertical adjustment of the attachment, combined with a shovel design featuring hingedly connected parts for efficient rock pickup and discharge, allows for reliable and efficient movement of rock material to a loading table and subsequent conveyor system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a backhoe is used to push rock material onto the loading table, then rock material can be conveyed onto the loading table, but rock material brushes past the side or falls out of the receiving area, requiring laborious rework
Solution Approach 1:
The patent inverts the conventional backhoe design by positioning the shovel opening upwards instead of backwards, allowing the machine to scoop rock material forward onto the loading table rather than pushing it backward. This inversion eliminates the problem of rock material falling out of the receiving area and eliminates the need for cleaning rework.
Solution Approach 2:
The patent changes the orientation parameter of the shovel from a backward-facing configuration to an upward-facing configuration. This parameter change allows the shovel to efficiently scoop and deposit rock material onto the loading table without material loss, directly improving productivity while eliminating time-consuming cleaning operations.
2Quantity of substance
If the shovel opening points backwards for rock pickup, then rock material can be pushed onto the loading table, but complete removal of excavated rock material is hardly possible
Solution Approach 1:
By inverting the shovel orientation from backward-facing to upward-facing, the patent enables complete removal of excavated rock material. The upward-opening shovel can scoop rock material cleanly and deposit it completely onto the loading table, eliminating residual material that would otherwise require cleaning operations.
3Ease of operation
If a conventional extension arm is used, then the attachment can be positioned, but horizontal and vertical adjustment are not independent, making reliable rock material movement difficult
Solution Approach 1:
The patent segments the extension arm into multiple independently adjustable components: a parallelogram arrangement for horizontal adjustment and a curved support arm for vertical adjustment. This segmentation allows independent control of horizontal and vertical positions, enabling reliable and precise positioning of the attachment for efficient rock material movement.
Solution Approach 2:
The patent introduces dynamic adjustment capabilities through hydraulic cylinders that independently control the horizontal position of the parallelogram arrangement and the vertical position of the curved support arm. This dynamic control system allows the operator to reliably position the shovel for picking up rock material and move it to the loading table with precision.
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
This configuration enables quick and reliable pickup and transport of rock material, reducing the need for laborious rework and enhancing operational efficiency, particularly in narrow tunnels and mining routes, by ensuring complete removal of excavated rock without the need for extensive clean-up.
Implementation Method 1
at least a first hydraulic cylinder being provided for horizontal adjustment
Implementation Method 2
at least a second hydraulic cylinder being provided for vertical adjustment
Data Source
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AI summary
The present invention relates to an advance working and loading machine and to a method for quarrying rock using such a machine. Rock is quarried with an attachment implement (30) on an adjustable boom arm (20). The quarried rock is received by a loading table (40) at a front region of a chassis (12) of the advance working and loading machine. The quarried rock is conveyed by means of a conveying device (50) to a rear region of the chassis. The attachment implement used is a bucket (32) in which the quarried rock is received. The boom arm has a parallelogram arrangement (22) of levers (21), wherein at least one first hydraulic cylinder (25) is provided for horizontal adjustment and at least one second hydraulic cylinder (26) is provided for vertical adjustment. At least one arcuate supporting arm (24) is articulated on the parallelogram arrangement, the attachment implement being mounted on a distal end of the supporting arm.