Trolley Crane Design
Requirement definition
1.0. Introduction
For this project, the aim was to research different geared trolley cranes and come up with a brief outline/ design which would meet some specific design limitations. The trolley crane that we had to come up with was meant to be designed to lift and carry a load of 1.5 tonnes along I-beam of 4 metres long.
The research that we did was mainly on existing trolley cranes and the configurations of these cranes which allowed us to familiarize ourselves with what the crane does and how it works. The way that the crane operates is by having a person pull a chain. This chain is connected to a drive shaft which in turn is connected to a pinion and two wheels. These wheels allow the crane to move horizontally along the I-beam whilst sustaining a load.
For our crane design, as mentioned above, the I-beam must be able to support the load of 1.5 tonnes without failing under the load and the beam length must be 4 metres long. The trolley crane must also be manually operated with one person pulling the chain to operate it.
The way that we can ensure that the trolley crane and I-beam will support the specified load is by using some of the basic beam bending theory in strength of materials and by using different tolerance and bearing data from previous notes.
2.0. Research As a group we researched many trolley cranes currently on the market, this gave us an idea of the competition for our trolley crane and helped clarify the workings of such mechanisms.
(See appendix) 3.0. Product Design Specification
3.1. Design Brief
The aim of this project, is through the researching of other products, is to produce a design for a geared trolley crane which fits the given specification for our group.
3.2. Performance The trolley crane should be capable of sustaining a load of 1.5 tonnes with a safety factor of 20%. Should run along a 4 metre I-beam. Trolley crane should be operated and manually moved via a chain/gear
1.0. Introduction
For this project, the aim was to research different geared trolley cranes and come up with a brief outline/ design which would meet some specific design limitations. The trolley crane that we had to come up with was meant to be designed to lift and carry a load of 1.5 tonnes along I-beam of 4 metres long.
The research that we did was mainly on existing trolley cranes and the configurations of these cranes which allowed us to familiarize ourselves with what the crane does and how it works. The way that the crane operates is by having a person pull a chain. This chain is connected to a drive shaft which in turn is connected to a pinion and two wheels. These wheels allow the crane to move horizontally along the I-beam whilst sustaining a load.
For our crane design, as mentioned above, the I-beam must be able to support the load of 1.5 tonnes without failing under the load and the beam length must be 4 metres long. The trolley crane must also be manually operated with one person pulling the chain to operate it.
The way that we can ensure that the trolley crane and I-beam will support the specified load is by using some of the basic beam bending theory in strength of materials and by using different tolerance and bearing data from previous notes.
2.0. Research As a group we researched many trolley cranes currently on the market, this gave us an idea of the competition for our trolley crane and helped clarify the workings of such mechanisms.
(See appendix) 3.0. Product Design Specification
3.1. Design Brief
The aim of this project, is through the researching of other products, is to produce a design for a geared trolley crane which fits the given specification for our group.
3.2. Performance The trolley crane should be capable of sustaining a load of 1.5 tonnes with a safety factor of 20%. Should run along a 4 metre I-beam. Trolley crane should be operated and manually moved via a chain/gear