"Multi Nut Remover & Tightener for Automobile Wheel" a Project Report

As the standard of living in India has increased, most of the families have at least one vehicle, typically car to move easily and quickly. With the increment of the number of cars on the road, the number of cars problem due to tire failure has increased. The car is provided with tire wheel nuts remover and jack for tire replacement. But they require a lot of effort to open a single nut and also time consuming because you should open/close single nut separately. The main objective of our project to develop a single tool with use of that tool we can open/close multiple nuts in single operation which works on simple mechanisms, with less effort. ”

Introduction

STEP-1: Use the appropriate L-wrench to loosen the lug nuts. Before jacking the car up, use your wrench or tire iron to break the lug nuts loose. Do not remove them completely, but turn them a quarter turn or so in the counter-clockwise direction each to make them loose enough to unscrew while the vehicle is in the air. You can purchase tire irons from your local auto parts stores that usually have an end that fits all vehicles. You may also choose to simply use a deep socket of the appropriate size with a ratchet or breaker bar.

STEP-2: Remove the lug nuts. Because the lug nuts are already loose from before you lifted the car, they should be fairly easy to unscrew the rest of the way. Use a wrench if need be to turn the lug nuts counter-clockwise until they come off of the lug studs. The wheel may shift as you remove the lug nuts, so watch your fingers for pinches. Remove the lug nuts across from one another in a star pattern, rather than each one in a row.

STEP-3: Apply liquid thread loosen it if need be. If the lug nuts have rusted over, apply a generous amount of a thread loosened or rust remover to the nuts. Allow it to sit for a few minutes, and then attempt to loosen the lug nut again. If the lug nut and stud break; you will need to have a new lug stud installed in order to repair the vehicle. Be sure to use the correct sized socket. A socket that is slightly too large could round off the lug nut. A stripped or rounded lug nut will have to be cut off by a professional.

STEP-4: Set the lug nuts aside someplace safe. Place the lug nuts in a safe place to be sure you don’t lose them. If you lose a lug nut, you may be able to secure the wheel temporarily with the remaining nuts, but if you lose more than one, it will not be safe to drive the vehicle until they have been replaced. You can purchase replacement lug nuts at your local auto parts store. Store the lug nuts in a small bowl or container so they can’t roll away as you work.

STEP-5: Pull the wheel toward you. Once the lug nuts have been removed, place your hands on either side of the tire. Grip the back of the tire and pull it toward you to remove the wheel from the lug studs. If the wheel has not been removed in a long time, it may require quite a bit of force to pull the wheel off. Be careful, if the tire is damaged there may be metal wire sticking out of it that can cut you. Wear gloves to pull on a damaged tire.

STEP-6: Use a rubber mallet to loosen stuck on wheels. If the wheel is seized in place and won’t come off from you pulling on it, use a rubber mallet to bang it loose. Strike the tire where the rim and tire meet all along the circumference of the wheel until it breaks loose. Do not use a metal hammer to hit the rims or you may damage them. It may take a good deal of force to remove the wheel if it is rusted in place.

A pneumatic torque wrench is a planetary torque multiplier or a gearbox that is mated to a pneumatic air motor. At the end of the gearbox is a reaction device that is used to absorb the torque and allows the tool operator to use it with very little effort. The torque output is adjusted by controlling the air pressure. These planetary torque multiplier gearboxes have multiplication ratios up to 125:1 and are primarily used anywhere accurate torque is required on a nut and bolt, or where a stubborn nut needs to be removed.

The pneumatic torque wrench is sometimes confused with a standard impact wrench, due to their similar appearance. A pneumatic torque wrench is driven by continuous gearing, and not by the Hammers of an impacting wrench. A pneumatic torque wrench has very little vibration, and excellent repeatability and accuracy. The pneumatic torque wrench was first invented in Germany in the early 1980s. Torque capabilities of pneumatic torque wrenches range from 118Nm, up to a maximum of 47, 600Nm.

Literature Review

In the paper of Vaibhav Chowki Adjustable Multinut wheel opener is a special purpose tool made to open/close all the five nuts of a wheel in one time with less effort. Although various methods are used for opening nuts, they require a lot of effort to open a single nut. The main objective of work is to develop a single tool with multiple mechanisms, which can be made use during assembling and dismantling of wheels in automobiles. It can be successfully used as a standard tool irrespective of the model of the vehicle. Also it can be used in assembly line of automobiles, garages, workshops and service stations.

In the paper of B. Sivakumar a gear or “gear wheel” is a rotating machine part having cut teeth, or cogs, which mesh with another toothed part in order to transmit power. Two or more gears working in tandem are called a transmission and produce mechanical advantages through a gear ratio and thus may be considered a simple machine. Gears are mostly used in the mechanical field for power transmission, this project report on stress analysis of spur gears. Spur gear made of cast iron which is use for high strength.

In the paper of A. S. Udgave Multiple-spindle drilling machines are used for mass production, a great time saver where many pieces of jobs having many holes are to be drilled. Multi-spindle head machines are used in mechanical industry in order to increase the productivity of machining systems. The multiple spindle drilling machines is a production type of machine. It is used to drill two holes in a work piece simultaneously, in one setting. The holes are drilled on number of work pieces with the same accuracy. So we adopt the basic design for over project.

Problem Definition

The existing wheel nuts remover and tightner which is an ordinary L-wrench and lug nut spanners are badly designed and hard to use. It can expel just a one nut at any given moment and it requires effort for removing and tightening of the nuts. Along these lines for old and weak people groups, the removing and tightening of the tire by this typical method is badly designed. Not just for old people there are number of case cases like therapeutic crises, work, and everybody in this world are truly occupied and in surge constantly. In this manner, to overcome these issues we design multi nuts remover and Tightener for automobile wheel. This tool can be worked by anybody effectively and it remove and tight all the four nuts at same time.

Component

Spur gears are the most easily visualized common gears that transmit motion between two parallel shafts. Because of their shape, they are classified as a type of cylindrical gears. Since the tooth surfaces of the gears are parallel to the axes of the mounted shafts, there is no thrust force generated in the axial direction. Also, because of the ease of production, these gears can be made to a high degree of precision. On the other hand, spur gears have a disadvantage in that they easily make noise. Generally speaking, when two spur gears are in mesh, the gear with more teeth is called the “gear” and the one with the smaller number of teeth is called the “pinion”.

A shaft is a rotating machine, usually circular in cross section, which is used to transmit power from one part to another, or from a machine which produces power to a machine which absorbs power. The various members such as pulleys and gears are mounted on it.

A ball bearing is a type of rolling element bearing that uses balls to maintain the separation between the bearing races. The purpose of a ball bearing is to reduce rotational friction and support radial and axial loads. It achieves this by using at least three races to contain the balls and transmit the loads through the balls. In most applications, one race is stationary and the other is attached to the rotating assembly (e. g. , a hub or shaft). As one of the bearing races rotates it causes the balls to rotate as well. Because the balls are rolling they have a much lower coefficient of friction than if two flat surfaces were sliding against each other. Ball bearings tend to have lower load capacity for their size than other kinds of rolling-element bearings due to the smaller contact area between the balls and races. However, they can tolerate some misalignment of the inner and outer races.

A solid piece of cast iron that has enough strength and sturdiness to serve as the surface to which other things are attached to be supported.

Working of System

In this system we are using spur gear and four pinion. The spur gear attached to handel bar which is rotating by the human effort and the other four pinion are coincided with the spur gear. Onward to these line the spur gear drives the four pinion. The gear and pinion in this set up is made according to pitch circile diameter of wheel which is 100mm and then shaft is transmit the power from the pinion to box spanner socket to remove/thight the nut in this system four shaft is attached with four pinion individually and to overcome the friction and human effort we attached the ball bearing surrounding of shaft.

Advantages

• Low maintenance.
• Less effort is required for nut open and close.
• It saves the time.
• No any special skill required for use.
• Any people can use very easily.
• Not any type of electricity required.
• No any special component required which having very high maintenance cost.
• Ecofriendly.
• Less running cost.
• Easily adoptable technology.
• Various pollutions like Air, Land, and Water etc. are produce about nil.

Application

• This tool can be used in automobile industry.
• It can be also used in garage.
• It can be also used in junk yard.
• It can be used as standard tool with new vehicle for the purpose of nut opener and tightner.
• It can use in assembly line.