Cam-Driven Ray Calibration Device for Compact Radiation Imaging

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Solution Overview

Problem

Existing ray calibration devices have low calibration efficiency and require large spaces due to their structure, which includes lead screws for driving pressing blocks to reciprocate, making them unsuitable for compact applications.

Innovation Solution

A compact ray calibration device using a cam-driven mechanism without lead screws, where a cam part rotates to move a calibration part into a ray area, utilizing a reset spring for returning the calibration block to its initial position, reducing space occupancy and improving efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If lead screws are used to drive pressing blocks to reciprocate, then the calibration device can perform calibration function, but the calibration efficiency is low and the device occupies large space

Engineering Contradiction:
Improvecalibration efficiencyVSAvoidspace occupancy
Core Design Contradiction:
ProductivityVSArea of stationary object

Solution Approach 1:

The patent replaces the traditional lead screw mechanical transmission system with a cam mechanism. The cam part converts rotational motion directly into the reciprocating motion of the calibration part without requiring lead screws, thereby eliminating the complex mechanical transmission components and reducing the overall device footprint while improving calibration efficiency.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent removes the lead screw components from the calibration device structure. By extracting this unnecessary mechanical transmission element and replacing it with a cam mechanism, the device achieves the same calibration function with reduced space occupancy and improved operational efficiency.

Inventive Principle:
Principle #2Taking out (Extraction)

2Productivity

If lead screws are used to drive pressing blocks to reciprocate, then the calibration device can perform calibration function, but the structure is complex and volume is large

Engineering Contradiction:
Improvecalibration efficiencyVSAvoidstructure complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent substitutes the complex lead screw mechanical transmission system with a simpler cam mechanism. The cam part directly converts rotational motion into reciprocating motion of the calibration part, eliminating the need for lead screws and reducing structural complexity while improving calibration efficiency.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent merges the functions of motion conversion and calibration execution into a single integrated cam mechanism. Instead of separate components for motion transmission and calibration, the cam part performs both functions, simplifying the overall structure and improving operational efficiency.

Inventive Principle:
Principle #5Merging (Combining)

3Productivity

If lead screws are used to drive pressing blocks to reciprocate, then the calibration device can perform calibration function, but the volume of accelerator increases

Engineering Contradiction:
Improvecalibration efficiencyVSAvoidaccelerator volume
Core Design Contradiction:
ProductivityVSVolume of moving object

Solution Approach 1:

The patent replaces the lead screw mechanical transmission system with a compact cam mechanism that directly converts rotational motion into reciprocating motion. This substitution eliminates the space-consuming lead screw components and reduces the overall volume of the accelerator while improving calibration efficiency.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent transitions from linear motion transmission through lead screws to rotational motion conversion through cams. This dimensional change in motion transmission allows for a more compact arrangement that reduces the volume occupied by the accelerator while maintaining calibration functionality.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

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

The cam-driven mechanism enhances calibration efficiency by eliminating the need for lead screws, allowing for a more compact structure and reduced space occupation, suitable for integration with accelerators in radiation imaging systems.

Implementation Method 1

the cam part is adapted to exert a force on the calibration part to enable the calibration part to move into a ray area downwards

Methodology Applied
Scientific EffectMechanical Force: Mechanical Force

Implementation Method 2

the reset part is adapted to provide an upward restoring force for the calibration connecting unit, so that the calibration connecting unit drives the calibration block to return to an initial position

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentUS10809207B2Ray calibration device and operating method thereof, and radiation imaging system and operating method thereof
Publication Date: 2020.10.20 NUCTECH CO LTD
  • US10809207B2 patent drawing
  • US10809207B2 patent drawing
  • US10809207B2 patent drawing

AI summary

The present disclosure provides a ray calibration device and a working method thereof, and a radiation imaging system and a working method thereof, and belongs to the field of radiation imaging technology. The present disclosure can solve the problems that the existing calibration devices have low calibration efficiency and require relatively large spaces. The ray calibration device of the present disclosure includes a driving part, a cam part and a calibration part, wherein the calibration part is located below the cam part; the driving part is adapted to drive the cam part to rotate; and the cam part is adapted to exert a force on the calibration part to enable the calibration part to move into a ray area downwards.