![Force flow chart
APPLIED FORCE ON
LEVER, [F]
TIGHTINIG FORCE, [W]
BY BOLD AND NUT
MECHANISM
CONTACT PRESSURE,
[Pn] BY CONE CLUCH
MECHNISM
BRAKING TORQUE,
[Tb] BY EXTERNAL
BRAKES](https://image.slidesharecdn.com/designanddevelopmentofnewloadingcomponent-180626180951/85/Design-and-development-of-New-loading-component-for-braking-application-34-320.jpg)
Design and development of New loading component for braking application
- 1. Design and Development of New loading component for braking application Note : This work of mine showcases engineering skills used to develop new product based on our necessity. Presentation by KANDHAN.S BE Mechanical Engineering , Rajalakshimi Institute of Technology
- 2. Methodology Modeling and drafting of machine elements Analytical modeling As an application in gear testing rig Benchmarking Problem statement Working principle
- 4. Conventional loading device These are IC engines test rig. Here, for testing engine performance a external torque load is applied by this conventional loading device Disadvantages : size is not compact and application of constant torque is difficult
- 5. Benchmarking
- 6. Shaft adapter sleeve as a benchmark Nut Tapered Sleeve Nut Tightened Tapered Sleeve
- 9. key Tapered Sleeve Housing Nut All dimensions are in mm
- 10. Tapered Sleeve key Housing Nut Oil seal LOADING COMPONENT EXPLODED VIEW
- 13. NutNut HousingHousing Oil seal Tapered Sleeve LOADING COMPONENT
- 15. Parts of loading component The main parts of this system is composed of Tapered sleeve or tapered bush with 6 degree of taperness, partial external thread and a through cut Housing which contains inner tapered bore to accommodate the bushs taperness and Internal step on left face Nut contains internal thread to match the external thread of the bush and external step to match the internal step of the housing
- 16. Bush nomenclature Tapered bush with 6 degree of taperness and partial external thread and through cut made of gun metal external thread through cut
- 17. Housing nomenclature a housing contains inner tapered bore to accommodate the bushs taperness. Internal step on left face is machined to accommodate nut. Inner tapered bore Internal step
- 18. Nut nomenclature Nut contains internal thread to match the external thread of the bush and external step to match the internal step of the housing made of mild steel Internal thread External step
- 20. Tapered Sleeve key Housing Oil seal Oil seal Nut
- 21. Working of the loading component The tapered bush is inserted inside the housing such way that the treaded part of the bush alone is expelled out of the housing
- 22. Working of the loading component The nut is made to travel over the external thread of the bush. As nut is rotated, it get advanced forward till the external step on nut meets the internal step of the housing beyond which the forward travel of nut is restricted. still as when keep on rotating the nut, the tapered bush containing a through cut on other hand shrinks itself and comes out by closing the gap between it. Therefore the inner diameter of the bush is reduced thus tightening the shaft, loading torque is applied. forward travel of nut travel of Bush
- 23. Working of the loading component Before tightening After tightening inner diameter of the bush is reduced by tightening
- 25. Analytical modeling of loading component This loading device is modeled such a way that it exhibits sequential combination of three mechanisms 1. Nut and bolt mechanism (achieving tightening force by interaction between nut, housing and tapered bush ) 2. Cone clutch mechanism (achieving contact pressure between housing and tapered bush ) 3. External shoe brakes (achieving braking torque by tapered bush on loading shaft )
- 27. Tightening force contact pressure braking torque
- 34. Force flow chart APPLIED FORCE ON LEVER, [F] TIGHTINIG FORCE, [W] BY BOLD AND NUT MECHANISM CONTACT PRESSURE, [Pn] BY CONE CLUCH MECHNISM BRAKING TORQUE, [Tb] BY EXTERNAL BRAKES
- 37. BRAKING TORQUE PRODUCED LOADING COMPONENT (Tb)
- 38. Influencing parameters Thus the braking torque of this device depends on three parameters 1. Coefficient of friction, l 2. Force applied F on lever of length L 3. Nut factor, K = .
- 39. Loading component providing braking torque Ideal gear RPM sensor Arduino Board Data from Arduino is linked with MS excel Test gear 3phase, 2HP induction motor APPLICATION OF LOADING COMPONENT
- 41. No more slides THANKS FOR YOUR PATIENCE !