Determine the thread depth and helix angle

Assignment Help Mechanical Engineering

Reference no: EM131377906

A jack similar to the ones shown in Figure 10.5 uses a single square-thread screw to raise a load of 50 kN. The screw has a major diameter of 36 mm and a pitch of 6 mm. The thrust collar mean diameter is 80 mm. Running friction coefficients are estimated to be 0.15 for the screw and 0.12 for the collar:

(a) Determine the thread depth and helix angle.

(b) Estimate the starting torque for raising and lowering the load.

(d) Estimate the power required to drive the screw at a constant one revolution per second.

Reference no: EM131377906

Questions Cloud

Sketch a diagram displaying production functions for health : ECON 362 Health Economics Problem Set. Assume that for every person, health (h) is determined by income (y) and by a genetic factor (g) through the production function: h = 0.5y + 2g. Sketch a diagram displaying production functions for health, with..

Estimate the starting torque for raising load : A double-threaded Acme stub screw of 2-in. major diameter is used in a jack having a plain thrust collar of 2.5-in. mean diameter. Coefficients of running friction are estimated as 0.10 for the collar and 0.11 for the screw.

What the author calls rightful policing : Which do yo think is the best way to measure our law enforcement system in the US? Explain in detail.Answer each part of the Discussion Question thoroughly and substantively, citing sources for any assertions. This is not a blog post or an opini..

What will be the result in given case discuss : Thereafter, Holmes sues Moriarity for specific performance of the contract. Moriarity interposes the defense of the statute of frauds, arguing that the contract is within the statute and hence unenforceable. What will be the result? Discuss.

Determine the thread depth and helix angle : A jack similar to the ones shown in Figure 10.5 uses a single square-thread screw to raise a load of 50 kN.

What rights if any have lucas against craig : What rights, if any, have Lucas against Craig for his failure to convey the property;- Annabelle against Lucas for failure to convey the house to her; and Penelope against Lucas for discharging her before the end of the agreed term of employment?

Determine the minimum cross sectional area : Assuming that, because of gate friction, each screw must provide a lifting force of 26 tons, what power is required to drive each screw when the gate is being raised at the rate of 3 ft/min? What is the corresponding rotating speed of the screws?

Discuss about the post given below : Substantive law defines what constitutes a crime (murder, rape, robbery). Whether or not a crime has been committed is defined by substantive law. (See page 4 - Ferdico 11th)Below is a link to Chapter 19 of the Texas Penal Code covering the types ..

What is middleware and what does it do : What is middleware, and what does it do?- Suppose your organization was contemplating switching from a host-based architecture to client-server. What problems would you foresee?

User Account

All Pages