Dry Granulator Slip Roller Gap Adjustment
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Solution Overview
Problem
The existing dry granulators require complex and time-consuming disassembly and adjustment processes for changing materials, which negatively impact production efficiency due to the need for precise gap adjustments between slip rollers and the cumbersome disassembly of feeding and drive components.
Innovation Solution
The dry granulator incorporates a servo motor, trapezoidal screw, and a locking assembly with a sleeve system to simplify the adjustment and disassembly process, allowing for precise gap control between slip rollers and easy separation of drive and feeding components using a guide rail and coupling mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a hydraulic system is used to adjust the gap between slip rollers, then the gap adjustment precision is improved, but the device complexity increases
Solution Approach 1:
The patent replaces the hydraulic system with a servo motor-driven trapezoidal screw mechanism. This mechanical substitution maintains precise gap adjustment capability while eliminating the complexity of hydraulic components, achieving both precision and simplicity.
Solution Approach 2:
The trapezoidal screw mechanism provides self-locking functionality, where the threaded connection automatically maintains the adjusted gap position without requiring additional locking mechanisms or continuous power input, simplifying the overall system.
2Ease of operation
If the feeding device and drive assembly are made separable for easy cleaning, then the ease of operation is improved, but the reliability of the drive connection may worsen
Solution Approach 1:
The patent divides the feeding device and drive assembly into separable modules connected by transmission members. This segmentation enables easy disassembly for cleaning while maintaining reliable operation during use through proper connection design.
Solution Approach 2:
The transmission member acts as an intermediary component between the drive shaft and feeding device. It enables easy separation for cleaning while ensuring reliable power transmission during operation, resolving the contradiction between accessibility and reliability.
3Productivity
If the dry granulator is designed for easy disassembly to change materials, then the productivity is improved, but the device complexity increases
Solution Approach 1:
The feeding device is segmented into separable components (buffer hopper, feeding screw, etc.) that can be quickly removed for material changes. This modular design improves productivity while keeping each component simple in structure.
Solution Approach 2:
The transmission members are pre-designed with connection and disconnection functionalities, allowing operators to quickly assemble or disassemble the feeding device without complex adjustment procedures, thus improving material change efficiency.
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 simplifies the operation, maintenance, and material change process by enabling accurate and efficient adjustment of the slip roller gap and easy disassembly of the feeding device and drive assembly, thereby enhancing production efficiency and convenience.
Implementation Method 1
a trapezoidal screw drivingly connected to the servo motor, a primary slip roller assembly and a secondary slip roller. The support frame is provided with a screw hole drivingly cooperating with the trapezoidal screw
Implementation Method 2
A guide rail is arranged between the servo motor and the secondary slip roller, and the support frame is adapted to slide back and forth on the guide rail
Implementation Method 3
A locking assembly is arranged at the connection between the transmission member and the drive shaft, and the locking assembly is configured to axially position the transmission member and the drive shaft
Data Source
AI summary
A dry granulator includes a rack, a feeding device mounted on the rack, and a slip roller device. The feeding device includes a vertical feeding screw, a buffer hopper, a stirring paddle, a horizontal feeding screw, and two drive assemblies. The drive assembly includes a drive motor and a drive shaft. The slip roller device includes a servo motor, a trapezoidal screw, a primary slip roller assembly and a secondary slip roller. The primary slip roller assembly includes a support frame, and a primary slip roller. A guide rail is arranged between the servo motor and the secondary slip roller. The support frame is provided with a screw hole. A coupling member is arranged between the output shaft of the drive motor and the drive shaft. The coupling member includes a reserved space. The horizontal feeding screw and the vertical feeding screw are drivingly provided with a transmission member, respectively.