- Design Of Bell Crank Lever
- Design Procedure Of Bell Crank Lever
- Design Of Bell Crank Lever Valve
- Design Of Bell Crank Lever System
Bell Crank Design 3 The bellcrank that you design will need to fit the exact ball bearing, ball joint linkages, and spring shown in the supporting information. Figure III-2 shows details of the exact positioning of the components. The bell crank shown in III-2 is basically symmetric. Figure III-2: Positioning of related parts. Abstract - Bell Crank Lever is important components from safety point of view since they are subjected to large amount of stresses. Hence to study the stress pattern in bell crank lever, analytical, numerical and photoelasticity methods are used. For analysis purpose virtual model of bell crank lever is prepared.
What is a lever?
A lever is a rigid bar that pivots about a fulcrum. It transmits an input motion and force, (the effort) through the lever pivoting on a fulcrum to a resistance force called a load.
Load
The load is anything that is being moved by a lever.
Effort force
The effort force is the energy applied to a lever to move a load.
Fulcrum
The fulcrum is the point at which the lever pivots. A lever may rest on a fulcrum or it may swivel on an axle, e.g. a see-saw (class 1 lever) and a wheel barrow (class 2 lever).
Classes of lever
There are three classes of levers. Each class of lever has the load and effort force in specific positions relative to the fulcrum.
Class 1 lever
A Class 1 lever has the fulcrum between the load and the effort force.
Design Of Bell Crank Lever
Class 2 lever
Design Procedure Of Bell Crank Lever
A Class 2 lever has the load between the fulcrum and the effort force.
Class 3 lever
A Class 3 has the effort force between the load and the fulcrum.
Design Of Bell Crank Lever Valve
Bell Crank LeverA bell crank lever is an angled Class 1 lever. It is a Class 1 lever because the fulcrum is between the load and the effort force. The bell crank lever is used when the effort force must be at an angle, usually a right angle, to the load. |
CantileverA cantilever is a beam that is fixed at one end only. Load is applied to the unsupported end. A cantilever may be classified as a type of Class 1 lever as fulcrum is between the effort force and the load. |
Design Of Bell Crank Lever System
Parametric design charts are proposed for the central-lever steering linkage, generated for simplified reference configuration mechanisms, the geometry of which is defined by only four parameters. This highlights the fact, yet not generally acknowledged, that the steering law ensured by a mechanism with adjacent central joints (known as bell crank mechanism), can be identically generated by a triple central joint variant of the same. Particular configurations are identified in which the length of the central lever does not affect the wheel-to-wheel transmission function of the mechanism, permitting a simplified synthesis for the cases in which the maximum stroke of the input member is imposed as a design specification.