A Review of Design & Development of Two Wheeler Lifting Mechanism (original) (raw)
Now a days with the increasing levels of technology, the efforts being put to produce any kind of work has been continuously decreasing. The efforts required in achieving the desired output can be effectively and economically be decreased by the implementation of better designs. These Power screws are used to converting rotary motion into translatory motion. A screw jack is an example of a power screw in which a small force applied in a horizontal plane is used to raise or lower a large load. The principle on which it works is similar to that of an inclined plane. The mechanical advantage of a screw jack is the ratio of the load applied to the effort applied. The screw jack is operated by turning a lead screw. The height of the jack is adjusted by moving a lead screw and this adjustment can be done either manually or by integrating an electric motor. In present days the two wheeler mechanic are not using lifting platform due to its heavy cost and their maintenance. Because of continuously bending of mechanic body during the repair and maintenance of two wheeler there are many health related problems are arising, also more stress and efforts are required. Limiting Deflection in Scissor Lift: Selecting lift with design capacity greater than required for the application; most scissor lift design for duty at higher capacities will experience less stress in all structural components as well as lower system pressures, at lower, working capacities. Reduced stresses and pressure always result in reduced deflection. Avoid transfer of load within the first 20% of lift travel: To minimize stress and deflection, at transfer elevations, it is critical to design the conveyor or transfer system to ensure that these elevations are above the scissor lift's " critical zone " of the first 20%of the lift available travel. Transfer load over fixed end of the lift platform: First if possible, load should not be transfer over the sides of a raised scissor lift is much more difficult to control deflection when the load is not shared equally between the two scissor legs pairs. Available Scissor Lift: 1) Hydraulic lifting platform. 2) Electric lifting platform.
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