NUMI Horn-1 Module Modification
Vladimir Sidorov21 August 2020
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NUMI Horn-1 Module drive mechanisms
Upper drivemechanism
Main shaft
Transverseshaft
Lower drivemechanismModule
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Upper drive mechanism condition
Transverseshaft
Main shaft
Link
Lifter drive shaft
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Upper drive mechanism
Motor
Slidingblock
Mainshaft
Gear box
Verticalshaft
Transverseshaft
Link
Baseplate
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Lower drive mechanismBase plate
Slidingblock
Guiderod
Linearbearing
Link GraphalloybushingAlignment
pin
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Lower and Upper drives exchange scenario
Horn-1 exchange procedure is followed
Target Chase
Target
Horn-1Chase
T-block
Horn with module
WorkCell
Move T-blocks from chase to T-blocks storage and Horn-1 module to Work Cell
Horn-1
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Horn-1 is disconnected from module
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Horn-1 is moved to the morgue
Horn-1
Detail steps of the drive mechanisms exchange procedure will be presented by Keith Anderson after my presentation
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Horn - module assembly in MI-8Horn1 module drive mechanisms pre-assembly and Remote Handling Training
Module mock-up
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Frame
Support block
Top plate
Bottom plate
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Lower drive mechanism
Upper drivemechanism
Transverseshaft
MainshaftModule
mock-upframe
Module mock-up frame –drive mechanisms assembly
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Horn-1 shafts installation
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The Horn-module assembly stand is installed in MI-8 for the lower drive mechanism removing and installation practice. The practice was done on Monday August 17.
Lower drive mechanismHorn-1 module Assembly stand
Module mock-up frame
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Module
Lower transfer drive Cask
Cask support aluminum frame
Upper drive mechanisms storage box
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Transverse drives shafts storage
Cask
Supportframe
Shafts
Cover
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Lower drive mechanism cask
Lower Cask
Top cover
Lower Drive Mechanisms Casks
Main cask
Small cask
Lower drivemechanism
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• Summary:• 1. All replacement parts are made from the stainless steel or anodized aluminum.• 2. More powerful motors and gear boxes is installed.• 3. Linear ball bearings are replaced with aluminum anodized bushings.• 4. The module mock-up was fabricated and used for transverse drives pre-
assembly and testing.• 6. Lower drive mechanism cask support frame was fabricated s used for practice.• 7. Drive mechanisms parts storage casks are under fabrication.• 6. The module assembly stand is installed in MI-8 and used for transverse drives
removing and installation practice.• 7. Special tools are fabricated for remote handling operations.
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