The rotor is connected to the variable speed motor. The weight of the motor is balanced by another weight, which is on either side of the rotor. By putting weights on the weight platform torque can be supplied to rotor, which is also called gyroscopic couple.
Specifications:1. Rotor dia. 250mm free about 3 axis of rotation driven by variable speed motor.
Vibration Lab Set Of 11 Experiment
Longitudinal Vibration Expiariment.
Torsional Vibration Experiment.
Damped Vibration Experiment.
Whirling Of Shaft Apparatus
Apparatus is a motorized unit consisting of a camshaft driven by a variable speed motor. The shaft runs in a double bearing. The free end of the camshaft has a facility to mount the cam easily.
The follower is properly guided in gunmetal bushes and the type of follower can be changed according to the cam under test. Graduated circular protractor is fitted co-axial with the shaft. And a Dial Gauge fitted on the follower shaft is used to note the follower displacement for the angle of cam rotation. A spring is used to provide controlling force to the follower system. Weights on the follower shaft can be adjusted as per the requirement. An arrangement is provided to regulate the speed. The apparatus is very useful for testing the cam performance for jump phenomenon during operation. On this apparatus the effect of change of inertia forces on jump action of cam-follower during operation can be observed. It is useful for testing various cam & follower pairs. Three cams and three followers will be supplied with the apparatus. These are already hardened to reduce the wear.Scope Of Experimentation:
The apparatus is designed to study the cam profiles and performance of cam and follower system. The apparatus consists of a shaft supported by ball bearings upon which three different types of cams can be mounted.
The push rod for follower is supported vertically, which can adopt three different types of followers. Cams and followers can be changed easily. A variable speed motor rotates the cam. A dial gauge permits plotting of follower displacement with respect to cam position. By operating the system at different Speeds, jump speed can be found and also the effect of weight and spring force on jump speed can be studied. Jump can be visualized also with the help of stroboscope (it is not supplied With the product).
This equipment is designed for carrying out the experiment for balancing a rotation mass system. The apparatus consists of a stainless steel shaft fixed in a rectangular frame. A set of four blocks with a clamping arrangement is provided. For static balancing, each block is individually clamped on shaft and its relative weight is found out using cord and container system in terms of number of steel balls. For dynamic balancing, a moment polygon is drawn using relative weights and angular and axial position of blocks is determined. The block are clamped on shaft is rotated by a motor to check dynamic balance of the system. The system is provided with angular and longitudinal scales and is suspended with chains for dynamic balancing.
1. To balance the masses statically and dynamically of a single rotating mass system.
2. To observation of effect of unbalance in a rotating mass system.
Electricity 0.5 kW, 220 V, Single Phase
Technical Specification: -
1. Drive Motor -- FHP Motor, variable speed, with speed controller
2. Balancing Weight -- 4 Nos. of Stainless Steel with different sized eccentric Mass for varying unbalance
3. Rotating Shaft -- Material Stainless Steel
4. The whole Set-up is well designed and arranged in a good quality painted Structure
The unit consists of a base upon which the bearing holders and driving motor are bearing can be fitted in a holders to end conditions for test shafts, viz. Both end fixed and one end free, one end fixed. A Variac provided control of driving motor. The unit demonstrates the phenomenon of whirling of shafts with single rotor. As the test is destructive, after the test cannot be used, hence the unit only demonstrates the principle.
However, results obtained are closer to theory, as compared to those with bare shafts. Also, It can be demonstrated that, after passing whirling speed, shaft again starts running true.
The apparatus consists of a variable speed D.C. Motor. Driving Pulley and Driven Pulley of equal diameters. The pulleys are mounted on input shaft (motor shaft) and output shaft. The Driven pulley can slide on the base only with bearing block to change the initial tension in belt. Brake Drum is mounted on the output shaft, which helps to measure power output. The motor speed is varied by Dimmerstat. Driving and Driven pulley speeds are indicated by a two channel digital Speed Indicator. With the help of Stroboscope it is possible to demonstrate the slip of belt on Driving and Driven Pulley.
Epicyclic Gear Train Holding Torque Apparatus
It is a motorized unit consisting of SUN gear mounted on input shaft. Two plane gears mesh with the annular gear. These planet gears are mounted on a common arm to which output shaft is fitted. Loading arrangement is provided for loading the system and to measure Holding Torque.
1. External type Epicyclic Gear Train:
2. Internal Type Epicyclic Gear Train:
Rope brake arrangement to measure output torque and holding torque.
3 Control Panel comprising of
1. To measure epicyclical gear ratio between Input shaft and Output shaft.
2. To measure epicyclical gear ratio between Input shaft and holding drum.
3. To measure Input torque, Holding torque and Output torque.
Service Required -
1. Floor Space - about 1.5m x 2m.2. 230 V.AC stabilized power supply
Journal Bearing Apparatus
Universal Vibration Apparatus
This apparatus enables a comprehensive arrangement of vibration experiments to be conducted on a single Sturdy M. S. channel (100 mm x 50 mm) basic frame. The experiments are specially designed for quick and easy assembly on the frame. Many components are common to several experiments. And The Whole Frame Is Powder Coated.
Range Of Experiments
For pendulum experiments a sub-frame is attached to the upper beam of the frame. This pendulum supported frame is provided with hardened V guide for supporting the compound pendulum. It also carries two small chucks for gripping the wires for the bi-filer suspension and simple pendulum. Following experiments can be conducted.
Expt. No. 1-Simple Pendulum
To verify the relation T= 2 II S L/g & to plot the graph T2 V/s L
Expt. No. 2-Compound Pendulum
To verify the relation T= 2 II S k + (OG)/g(OG)
To determine the radius of gyration & equivalent length of compound Pendulum.
Expt. No. 3-Bi-filer suspension- (Tensional Oscillations)
To determine the radius of gyration of body about the centre of gravity by using relation.
T= 2 K/aSL/ g
Universal governor apparatus
The atico unit consists of a main spindle driven by variable speed motor. Spindle can be fitted with four different governor assemblies. A scale with pointer is provided. We can calculate each characteristics of each governor at different speed and compare the performance.
Porter And Proell Governors:-
Lathe Tool Dynamometera
This is a strain gauge type two component lathe tool dynamometer designed to measure vertical and horizontal forces on the while orthogonal cutting process. The unit is in two parts one is mechanical sensing unit or tool holder, which can mounted on the top of the Ross slide after removing swivel base and compound slide of a lathe and digital force indicator. With this Dynamometer student can study the change in these forces by varying Speed, Cut and Feed.
Scope Of Supply: