Can a Pulley System Replace Hydraulic Rams for Mechanical Lifting Without Power?

Thread starter Yashi234
Start date Jul 10, 2020
Tags

Device Lifting Mechanical

In summary, Yashi plans to use a pulley mechanism to lift the container using a hydraulic ram. There will be two people to help with the lifting, and the container will have to be lifted from a vertical position to a 143 degree angle.

Jul 28, 2020

Yashi234

Thank you all,

Will send you updated drawing with dim to get you an idea. I have to use rud lug to lift overhang plate. I calculated torque to 2.2 kNm each so will the rud lug of 3T on each be sufficient ? How to determine what size rud lug to use ? It will be weld on.

Second question come to my mind is pulley has to tight fit (bearings and sheave and screws) or need to have movement for load carrying ?

Do we get readymade mounted pulleys like d one attached with bolt holes on ground or have to build around sheaves ? For 8mm rope you need 100mm dia or 4in dia sheave.

Regards,
Yashi

Last edited by a moderator: Jul 29, 2020

<h2>What is a mechanical lifting device?</h2><p>A mechanical lifting device is a tool or machine designed to lift and move heavy objects. It uses mechanical force, such as hydraulics, pulleys, or gears, to lift the weight and make it easier to move.</p><h2>What are the different types of mechanical lifting devices?</h2><p>There are several types of mechanical lifting devices, including cranes, forklifts, hoists, and jacks. Each type is designed for specific purposes and has its own unique features and capabilities.</p><h2>How do mechanical lifting devices work?</h2><p>Mechanical lifting devices work by converting energy, such as electricity or fuel, into mechanical force to lift heavy objects. This force is then used to move the object to a desired location.</p><h2>What are the benefits of using a mechanical lifting device?</h2><p>Using a mechanical lifting device can greatly increase efficiency and productivity in lifting and moving heavy objects. It can also reduce the risk of injury to workers and prevent damage to the objects being lifted.</p><h2>What safety precautions should be taken when using a mechanical lifting device?</h2><p>Safety is crucial when using a mechanical lifting device. It is important to follow all safety guidelines and protocols, such as proper training, regular maintenance, and using the device within its weight capacity. It is also important to inspect the device before each use and to have a backup plan in case of malfunctions or emergencies.</p>

What is a mechanical lifting device?

A mechanical lifting device is a tool or machine designed to lift and move heavy objects. It uses mechanical force, such as hydraulics, pulleys, or gears, to lift the weight and make it easier to move.

What are the different types of mechanical lifting devices?

There are several types of mechanical lifting devices, including cranes, forklifts, hoists, and jacks. Each type is designed for specific purposes and has its own unique features and capabilities.

How do mechanical lifting devices work?

Mechanical lifting devices work by converting energy, such as electricity or fuel, into mechanical force to lift heavy objects. This force is then used to move the object to a desired location.

What are the benefits of using a mechanical lifting device?

Using a mechanical lifting device can greatly increase efficiency and productivity in lifting and moving heavy objects. It can also reduce the risk of injury to workers and prevent damage to the objects being lifted.

What safety precautions should be taken when using a mechanical lifting device?

Safety is crucial when using a mechanical lifting device. It is important to follow all safety guidelines and protocols, such as proper training, regular maintenance, and using the device within its weight capacity. It is also important to inspect the device before each use and to have a backup plan in case of malfunctions or emergencies.

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