How to find the DImensions of all the parts of the device

Click For Summary
SUMMARY

The discussion focuses on calculating the dimensions of various components of a mechanical device, specifically a car jack mechanism. Key components include Pin (A), Jaws (B and C), Nut (D), and Handle (E). The force applied on Jaw C is 1779.261 N, while the maximum human force on the Handle is 100 N. The objective is to determine the diameter of the threaded nut, the vertical length of the Handle, and the diameter of the Pin based on the forces and mechanical relationships involved.

PREREQUISITES
  • Understanding of mechanical advantage and force distribution in systems
  • Familiarity with basic physics concepts such as work and energy
  • Knowledge of dimensions and tolerances in mechanical design
  • Experience with diagram interpretation in mechanical engineering contexts
NEXT STEPS
  • Study the principles of mechanical advantage in jacks and levers
  • Learn about the relationship between force, distance, and work in mechanical systems
  • Research methods for calculating dimensions based on applied forces in mechanical designs
  • Explore the design considerations for threaded components, specifically in jacks
USEFUL FOR

Mechanical engineers, design engineers, students studying mechanics, and anyone involved in the design and analysis of mechanical systems, particularly those related to lifting devices like jacks.

shaheryarbhatti
Messages
11
Reaction score
0

Homework Statement


As picture attached .We need to find the dimensions of all the parts that are Pin(A),Jaw(B and C), NUt (D) , Handle (E) .The jaw B is fixed and C is free to move towards B.There is a force T=1779.261 N on Jaw C.Secondly there is a human force involved in turning the handle (E) which is maximum of 100 N and can not exceed it.We need to find the dimensions for all the components discussed , especially the diameter of the threaded nut ,the vertical length of the Handle and the DIameter of the Pin being used.
U can see the mechanism of car jack .its exactly the same just the difference is that tehre are two jaws in place of traingle in car jack.


Homework Equations





The Attempt at a Solution


Well i think if we can possibly relate the work done is covering the distance with the force applied over the handle then we can caluculate the diemnsions of Handle and for the diameter of Nut if we can find its realtion with inertia .
 

Attachments

  • jaws.JPG
    jaws.JPG
    10.7 KB · Views: 521
Physics news on Phys.org
addition in daigram uploaded before so see the new diagram

there is a little inforamtion missing in the first diagram so i have added it in the second diagram attached now.
 

Attachments

  • jaws.JPG
    jaws.JPG
    12.8 KB · Views: 475
A little more of correction or can say ease in question

Well sorry for the inconvenience wlel i have modified the image more maybe it could be of little more help
 

Attachments

  • jaws.JPG
    jaws.JPG
    13.5 KB · Views: 455

Similar threads

  • · Replies 1 ·
Replies
1
Views
2K
  • · Replies 2 ·
Replies
2
Views
3K
Replies
2
Views
3K
Replies
5
Views
3K
  • · Replies 10 ·
Replies
10
Views
4K
  • · Replies 3 ·
Replies
3
Views
6K
Replies
8
Views
5K
  • · Replies 8 ·
Replies
8
Views
4K
  • · Replies 6 ·
Replies
6
Views
3K
  • · Replies 1 ·
Replies
1
Views
2K