Adjustable Width Mold Telescoping Support Assemblies
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Solution Overview
Problem
Existing adjustable width molds for slipform pavers lack efficient mechanisms for width adjustment and control, leading to complex constructions and limited precision in forming concrete structures.
Innovation Solution
The adjustable width mold apparatus features telescoping support assemblies with rotary spindle actuators and hanger rods, allowing for precise extension and retraction to accommodate spacers, enabling flexible width adjustments and compact construction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If telescoping support assemblies with rotary spindle actuators are used, then width adjustment precision is improved, but device complexity increases
Solution Approach 1:
The mold apparatus is divided into modular components: a center portion, left sideform assembly, and right sideform assembly. Each sideform assembly can be independently adjusted relative to the center portion using its own telescoping support assembly, allowing precise width control while maintaining manageable complexity through modular design.
Solution Approach 2:
The sideform assemblies are made dynamically adjustable through telescoping support assemblies with rotary spindle actuators. These actuators enable continuous adjustment of the sideform positions along the longitudinal axis, providing precise width control that can be changed during operation to accommodate different concrete structure widths.
2Adaptability or versatility
If telescoping support assemblies are used for width adjustment, then adaptability is improved, but device complexity increases
Solution Approach 1:
The telescoping support assemblies serve multiple functions: they provide structural support, enable width adjustment, and allow the sideform assemblies to be positioned at various distances from the center portion. This multi-functionality reduces the need for separate adjustment mechanisms, thereby improving adaptability without proportionally increasing complexity.
Solution Approach 2:
The dynamic telescoping mechanism allows the mold apparatus to adapt to different width requirements by extending or retracting the sideform assemblies. The rotary spindle actuators enable smooth, controlled adjustment during operation, providing versatility for forming various concrete structure widths without requiring multiple fixed-width molds.
3Manufacturing precision
If spacers are used to control width, then manufacturing precision is improved, but device complexity increases
Solution Approach 1:
Spacers are introduced as intermediary elements between the sideform assemblies and the center portion. These spacers provide precise, fixed-width separation that ensures accurate dimensional control of the concrete structures being formed. The spacers act as mediators that translate the adjustable positioning capability into precise final dimensions.
Solution Approach 2:
The spacers are pre-positioned at specific locations between the sideform assemblies and center portion before the concrete pouring process. This preliminary placement ensures that the correct width dimensions are maintained throughout the forming process, eliminating the need for complex active control systems during concrete placement.
4Ease of manufacture
If compact construction is implemented, then ease of manufacture is improved, but device complexity increases
Solution Approach 1:
The telescoping support assemblies are designed with nested structures where the inner and outer tubes are arranged concentrically. The sideform assemblies can be telescoped within the overall mold structure, allowing compact storage and transport when not in use. This nesting approach reduces the overall footprint and simplifies manufacturing while maintaining full adjustability during operation.
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 solution provides a compact and precise adjustable width mold system, offering fine control over the extension and retraction of sideform assemblies, simplifying construction, and allowing for the formation of various concrete structure widths, including crowns, with improved operational efficiency.
Implementation Method 1
A left rotary spindle actuator for extending and retracting the left telescoping support assembly may include a left rotary spindle connected to one of the left sideform assembly and the center portion, and a left nut connected directly or indirectly to the other of the left sideform assembly and the center portion. The left rotary spindle may be received in the left nut.
Data Source
AI summary
An adjustable width mold apparatus for a slipform paver includes a center portion and left and right sideform assemblies. The center portion has left and right lateral ends. Left and right telescoping support assemblies are connected between the sideform assemblies and the center portion. Laterally inner ends of the telescoping support assemblies are connected to the center portion laterally inward of the respective lateral ends of the center portion. One or more spacers may be received between each sideform assembly and the center portion to adjust the width of the mold apparatus.