Through a manually operated lever system, the upper first gear 5 is slid into mesh with the lower first gear allowing power to be delivered to the output shaft 3. Mechanical drives and power transmission training gear. Jun 08, 2019 the classification of electrical drives can be done depending upon the various components of the drive system. Pdf mechanical drive systems are widely used in mechatronic applications in order to. A mechanical watch is driven by a mainspring which must be wound either periodically by hand or via an automatic winding mechanism. Its main function is to allow the drive wheels to turn at different rpms allowing the wheels to go around corners while still receiving power from the. When the power is transmitted from input to output using mechanical elements is known as mechanical power transmission. Top 12 different types of cranes used in construction works.
But now the technology is growing, even er this area. Dec 30, 2018 brakes are used to reduce or cease the speed of motors. Learn the roles of proper lubrication, bearings, proper alignment and fastening. These drives create a back and forth motion of a tray caused by either a direct mechanical linkage push rod or by a stimulating motion with out of balance weights then amplifying that vibration into the tray through a set of springs. Mechanical drive systems are widely used in mechatronic applications in order to convert from rotational motion to translational motion and in order to match speed and torque.
The selection of the suitable drive depends on the purpose of the machine tool, power requirements, speed range ratio, mechanical characteristics of the machining operation, and cost of the variable speed unit. The shafts include the input shaft 1, the counter shaft 2, and the output shaft 3. There are plenty of applications of a chain drive some of them are. These are simple designs needing large motors to overcome the head load weight of material resting in the tray. Whats the difference between direct and indirect drives for hydraulic pumps. Pdf mechanical drive systems in mechatronic applications. Mechanical driv e systems are widely used in mechatronic applica tions in order to convert from rotat ional motion to tr anslation al motion a nd in order to matc h speed and torque. Energy is required to drive the machines and equipments for variety of applications.
A key is the piece inserted in an axial direction between a shaft and hub of the mounted machine element such as pulley or gear etc. Types of mechanical drives power transmission youtube. Describe the function of the different type of valves. Mechanical drives an overview sciencedirect topics.
They are mostly used in heavy constructions and manufacturing of heavy equipment industries. Read here to know about various types of air compressors used and get a clear inside view of each type of compressor with the attached pictures. The next schematic has the transmission in second gear. The different types of chains used in power transmission are, roller chain. Fasteners can be used to close a container of a box or an envelope, or they may involve keeping together the sides of an opening of flexible material, attaching a lid to a container, etc.
A chain drive is a mechanically operating system where we used different types of chains to transmit the power or for movement of somethings generally, a chain drive is used where the distance between the power produced and where it to be transferred is less, however, this is not applicable for all. Hex drives have six straight sides, hence the name, hexagon drive. Cams convert ordinary shaft rotation into a more complicated pattern of motion. Chain drives are made up of metal which is stronger and more durable. The sprockets are toothed wheels over which an endless chain is fitted. In most stepless drives, the torque transmission is not positive. Nov 23, 2017 a gearbox is a transmission device which is used between engines output shaft and the final drive in order to transfer required torque and power to the wheels of the vehicle, a gearbox consists of the set of gears i. Chain types conveyor chain rollers sit proud of links and can roll along supporting surface can be used for transporting materials, as rollers can support weight can also be used just to support weight of chain if transmitting power over long distances. Apr 21, 2018 torx drives are available both in internal and external drives, and corresponding drivers are available in sizes that range from t1 to t100. Classification of electrical drives or types of electrical. Understand geometry of different gears and their dimensional pro perties.
For example, pulleys, levers, simple electrical circuits etc. Presentation of the basics of gear, belt and chain drives with an overview of belts and chain maintenance. Mechanical drives training system fundamentals for. Mechanical analysis belt and chain drives city, university of london. Positive displacement compressors cab be further divided into reciprocating and rotary compressors.
A mechanical watch is a watch that uses a clockwork mechanism to measure the passage of time, as opposed to quartz watches which function electronically via a small battery. Seven examples of such mechanical drive systems are given in this technical note. Types of question you can expect to find all of the following types of question in a typical mechanical aptitude test. Examine all the common mechanical drives including belts, chains and gears. Mechanical drives and power transmission training gear belt. The chain drive is used in bicycles, motorcycles, and many more engines. Available energypower is required to be transmitted to get desired motion and work. It is used to transmit the power from the driveshaft to the drive wheels. Industrial maintenance introduction to mechanical drive. Mechanical drives belt, chain, gear advantages and. Mechanical vibratory drives come in a wide range of designs. Sep 01, 2001 motors, drives basics of belt drives power transmission belting has been used for more than 200 years.
Jan 14, 2017 belt drives are used as the source of motion to transfer to efficiently transmit power or to track relative movement. Recognize the unorthodox ways gears can be used in different mot ion systems. Nevertheless, there are screwdrivers available to drive them. It is used in almost all mechanized fourwheel vehicles. The gears include the counter shaft drive gears 4 which are always engaged, the first gearset 5 where the upper gear is shown slid out of mesh, and the. Find, read and cite all the research you need on researchgate. It is used for lifting loads and also used to carry material. There are different types of gear, as i always say a good friend of mine who works in a mechanical company. Service factor based on type of driver and driven load. The second schematic shows the transmission in first gear. Types of mechanical keys design of keys, keyways introduction to mechanical key.
The following safety and common symbols may be used in this manual and on. Stepless speed drives may be mechanical, hydraulic, or electric. Types of gearbox complete explanation mechanical booster. Download as ppt, pdf, txt or read online from scribd. Crane is a powerful and heavy machine which is used for lifting, lowering of heavy objects, machinery etc with the help of cables and pulleys. Types of electric actuators basically, an electric actuator is one kind of gear motor which can be of various voltages and is the main torque producing component.
Couplings are mechanical elements that couples two drive elements which enables motion to be transferred from one element to another. A differential is a mechanical device made up of several gears. We know that there are various types of motors available dc motors, induction motors, synchronous motors, single phase motors etc. Brute force mechanical drives use two special motors with eccentric weights on each end of a shaft that creates an outofbalance vibration and motion into the tray. The main disadvantage of the belt drives and the rope drives is that the velocity ratio does not remain constant, but varies on account of slip. Since chain drives are positive drives there is no slip, hence the velocity ratio will remain constant.
Mechanical drives belt, chain, gear advantages and disadvantages introduction. However, most hex drive fasteners are bolts, rather than screws. Mechanical reasoning designed to assess your knowledge of physical and mechanical principles. Mechanical elements like friction disc, various type of belts, rope, chain, gears, couplings etc. A chain drive consists of a chain and two wheels, called sprockets. In this post, youll learn about what is belt drive and how it works. Later, cotton or hemp rope was used with vgroove pulleys to reduce belt tension. Thanks for sharing this information about different types of clutch. Different types of electric actuators and its applications. Now according to the design, the drives can be classified into three types such as singlemotor drive, group motor drive and multi motor drive. Gears are one of the most common and diverse types of mechanical devices. Chain drive used in several industries for several purposes like.
Sep 30, 2016 a fastener is a hardware device that is used for creating nonpermanent joints. This led to the development of the vulcanized rubber vbelt in 1917. Whats the difference between direct and indirect drives. Gear drives belt drives vbelt maintenance chain drives sprocket and roller chain maintenance. Different designs result in different types of motion in the cam follower.
In a two pulley system, depending upon the direction the belt drives the pulley, the belt drives are divided into two types. Engineers and designers commonly use electric motors to power hydraulic pumps. Mechanical drives belt, chain, gear advantages and disadvantages. Circular cams cause smooth linear motion, heart cams maintain a uniform velocity in the cam follower, and drop cams produce a rapid and discontinuous linear motion. This article describes what is a coupling, types of couplings, rigid couplings, flexible couplings, universal couplings, hookes coupling, pin bush coupling, flanged coupling etc. Differential mechanical device simple english wikipedia. Mechanical drives guidelines for selection of mechanical drives advantages of gears. This is not stronger as compared to the belt drive. In belt drive, little difficulties have when it gets damaged. Install and maintain drives correctly align drives correctly apply correct lubrication techniques select bearings correctly troubleshoot and fix drives this workshop is designed for personnel with a need to understand the use, care, installation, or the economics associated with mechanical machinery. There are several types of cranes used in constructions depending on the type of work. Recognize different gearing systems and relative advantages and disadvantages between them. Feb 27, 2017 types of mechanical drives for power transmission.
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