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Thread: Locking mechanism in rack and pinion

  1. #1
    Associate Engineer
    Join Date
    Sep 2017

    Locking mechanism in rack and pinion


    I'm designing lifting mechanism using rack and pinion. I'm facing problem in design idea for locking the rack in place when it is full lifted. Can anybody help in this design issue.

    Remember when the pinion rotate reverse that time the should get unlock automatically.

    Please help me here.

    Thanks and Regards

  2. #2
    Technical Fellow jboggs's Avatar
    Join Date
    Mar 2011
    Myrtle Beach, SC
    Install a spring-actuated, solenoid-controlled brake (or ratchet) on the rack. Tie the solenoid to the electrical power driving the pinion. The spring causes the brake to engage. The solenoid retracts the spring and disengages the brake. That way the brake is always engaged except when the pinion is powered.

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