Dinesh Scientific.

Single Stage Bevel Gear. The model is mounted on a wooden

board

Single Stage Bevel Gear. The model is mounted on a wooden board

Apparatus consists of a metallic pulley of 30 cm diameter with two

grooves, one for rope and the other for belt. At back side of the pulley, a circular

wooden disc is provided with graduation at 10o interval. A rotating pulley is fixed at

the circumference of the scale. Apparatus is supplied complete with one belt and a

rope. The apparatus is mounted on a heavy vertical stand.)

Apparatus consists of a metallic pulley of 30 cm diameter with two

grooves, one for rope and the other for belt. At back side of the pulley, a circular

wooden disc is provided with graduation at 10o interval. A rotating pulley is fixed at

the circumference of the scale. Apparatus is supplied complete with one belt and a

rope. The apparatus is mounted on a heavy vertical stand.)

An all metallic model consists of a sun gear, arm and a planetary gear inside a casing

An all metallic model consists of a sun gear, arm and a planetary gear inside a

casing

Gear-train is any combination of gear wheels by which motion is transmitted from one shaft to another shaft. In epicyclic gear-trains, the axes of shafts on which the gears are mounted may move relative to a fixed axis.

To measure epicyclic gear ratio between input shart and output shaft.

To measure epicyclic gear ratio between input shaft and holding drum.

To measure input torque, holding torque and output torque.

It consists of two types of epicyclic gear-trains

1. External Type and

2. Internal Type.

External type Epicyclic Gear Tain :

It is a hand driven demonstration model consisting of two bearing

Internal type Epicyclic Gear Train :

It is a motorised unit consisting a SUN gear mounted on input shaft.

A gear train with holding drum and a handle.

A compact gear train. (industrial).

Variable speed D.C.shunt motor

–

1 HP, 1500 rpm, 230 V.

Digital Ammeter & Voltmeter.

Model is made up of aluminum and other

metallic parts. Model is mounted on a

wooden board of size 90 x 60 cm. Angular

and linear scales are provided to find the

displacement of points in links. Following

mechanism will be on the board.

a. Locomotive Coupling Bar Mechanism,

or link mechanism

b.Beam Engine Mechanism

c. Ackerman steering gear mechanism

model is made up of aluminum and other

metallic parts. Model is mounted on a

wooden board of size 90 x 60 cm. Angular

and linear scales are provided to find the

displacement of points in links. Following

mechanism will be on the board.

locomotive coupling bar mechanism,

link mechanism

beam engine mechanism

c. Ackerman steering gear mechanism

Model consists of different types of pair viz sliding pairs,turning pair, rolling pair (two types), screw pair (two types), spherical pair, completely constrained motion, gear wheels and two types of links. All pairs mounted on a wooden board. )

Model consists of different types of pair viz sliding pairs,turning pair,

rolling pair (two types), screw pair (two types), spherical pair, completely

constrained motion, gear wheels and two types of links. All pairs mounted

on a wooden board.)

The set up consists of heavy disc mounted on a horizontal shaft, rotated by a variable

speed motor. The rotor shaft is coupled to a motor mounted on a triunion frame having bearings in a yoke

frame, which is free to rotate about vertical axis. A weight pan on other side of disc balances the weight of

motor. Rotor disc can be move about three axis. Torque can be

applied by calculating the weight and distance of weight from

the center of rotor. The gyroscopic couple can be determined.

EXPERIMENTS:

Ø Experimental justification of the equation T = 1 w. wp for

calculating the gyroscopic couple by observation and

measurement of results for independent vibrations in

applied couple T and precession wp.

Ø To study the gyroscopic effect of a rotating disc

Ø Observation of gyroscopic effect of rotating disc

UTILITIES REQUIRED:

Ø Electric supply: 230 V AC, Single Phase.

Ø Bench area: 1m x 1m

TECHNICAL DETAILS:

Product Motorized Gyroscope Apparatus

Disc    Dia 300 mm x 12 mm thick precisely balanced which can be rotated in

3 mutually perpendicular axis.

Motor Variable speed of standard make.

RPM

Measurement  Digital RPM Indicator with Proximity sensor.

Weights 2 kg, 1 kg, kg

Stop Watch Electronic

The set up consists of heavy disc mounted on a horizontal shaft, rotated by a variable

speed motor. The rotor shaft is coupled to a motor mounted on a triunion frame having bearings in a yoke

frame, which is free to rotate about vertical axis. A weight pan on other side of disc balances the weight of

motor. Rotor disc can be move about three axis. Torque can be

applied by calculating the weight and distance of weight from

the center of rotor. The gyroscopic couple can be determined.

Experiments:

Experimental justification of the equation T = 1 w. wp for

calculating the gyroscopic couple by observation and

measurement of results for independent vibrations in

applied couple T and precession wp.

To study the gyroscopic effect of a rotating disc

Observation of gyroscopic effect of rotating disc

Utilities Required:

Electric supply: 230 V AC, Single Phase.

Bench area: 1m x 1m

Technical Details:

Product Motorized Gyroscope Apparatus

Variable speed of standard make.

Dia 300 mm x 12 mm thick precisely balanced which can be rotated in

3 mutually perpendicular axis.

Metallic model mounted on the wooden board

Metallic model mounted on the wooden board

metallic model mounted on the wooden board

Metallic model mounted on the wooden board

Apparatus consists of a metallic machined screw with a pitch of 5 mm carrying a

double flanged turned table of about 20 cm dia. Screw jack is fitted on a heavy

C.I. base and is supplied complete with 2 adjustable pulleys, cord and hooks

Apparatus consists of a metallic machined screw with a pitch of 5 mm carrying a

double flanged turned table of about 20 cm dia. Screw jack is fitted on a heavy

C.I. base and is supplied complete with 2 adjustable pulleys, cord and hooks.

Model is having teeth parallel to the axis of gears. The model is mounted on a wooden boar.

Model is having teeth parallel to the axis of

gears. The model is mounted on a wooden boar

This equipment is designed for carrying out the experiment for balancing a rotation mass system. The apparatus consists of a 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.

To balance the masses statically and dynamically of

To observation of effect of unbalance in a rotating

Electric supply 0.5 kW, 220V AC, Single Phase

Drive Motor:

FHP Motor, variable speed,

Balancing weight

4 Nos. with different sized eccentric

This equipment is designed for carrying out the experiment for balancing a rotation mass system. The apparatus consists of a 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.

Experiments:

To balance the masses statically and dynamically of a

single rotating mass system.

To observation of effect of unbalance in a rotating

mass system

Utilities Required:

Electric supply 0.5 kW, 220V AC, Single Phase

Technical Details:

???

Drive Motor:

FHP Motor, variable speed,

with speed controller

Balancing weight

: 4 Nos. with different sized eccentric mass for

Varying unbalance

The set-up is designed to study the working of different governors normally used to control the speed. It consists of a main spindle, mounted vertically on the base plate. This spindle is driven by a variable speed Motor which is also mounted vertically on the same base plate. Anyone governor assembly out of four can be  mounted on spindle. Speed control unit controls the spindlespeed. A graduated scale is fitted to the sleeve to measure the displacement.

Determination of characteristic curve of a sleeve position

To study the effect of varying the mass of the center

To study the effect of varying the initial spring

To study the determination of characteristics curves of radius of rotation against controlling force

Power Supply: 230 V AC, Single Phase.

Floor Space: 1.5 x 1.5 m

Tachometer to find out RPM

Governor Mechanism:

Four different types of governor

Motor :

Variable speed Motor HP

Control Panel:

For speed control of motor.

RPM measurement:

Digital RPM Indicator with Proximity Sensor.

VIB-LAB. , is useful to study various experiments and to verify the principles and relations pertaining to study of vibrations. In this apparatus frame and stand made out of thick M.S.channels are provided for conducting various experiments related to vibration. While designing special care is taken for quick and easy assembly and dismantling of experimental setups. Digital RPM Indicator is provided for measuring speed of the exciter unit

Pendulum Experiments

Longitudinal Experiments

Torsional Experiments

1. Universal Frame and stand made out of thick M.S.Channel

with powder coating for longer life of the unit.

2. Control Panel consisting of Dimm-erstat, Digital RPM Indicator and ON/OFF, switches and fuses.

3. D.C. variable speed motor ( F.H.P.) with exciter unit fixed on the shaft of the motor.

4. Single Pen ordinary type Strip Chart Recorder (for recording vibrations).

5. Damper with arrangement for changing damping.

6. Pen holder and descender assembly for plotting the graph of damping torque vs., depth of damping drum

7. Disc

8 Nos. for conducting rotor system experiments.

9 Nos. for conducting longitudinal vibrations

Description

VIB-LAB. , is useful to study various experiments and to verify

the principles and relations pertaining to study of vibrations.

In this apparatus frame and stand made out of thick

M.S.channels are provided for conducting various experiments

related to vibration. While designing special care is taken for

quick and easy assembly and dismantling of experimental setups.

Digital RPM Indicator is provided for measuring speed of

the exciter unit

Experimentations

Pendulum Experiments

Longitudinal Experiments

Torsional Experiments

scope of supply

1. Universal Frame and stand made out of thick M.S.Channel

with powder coating for longer life of the unit.

2. Control Panel consisting of Dimm-erstat, Digital RPM Indicator and ON/OFF, switches and fuses.

3. D.C. variable speed motor ( F.H.P.) with exciter unit fixed on the shaft of the motor.

4. Single Pen ordinary type Strip Chart Recorder (for recording vibrations).

5. Damper with arrangement for changing damping.

6. Pen holder and descender assembly for plotting the graph of damping torque vs., depth of damping

drum

7. Disc

–

3 Nos. for conducting rotor system experiments.

8. Chucks for gripping wires in simple and compound pendulum and rotor system experiments.

9. Spring steel beam

–

2 Nos. for conducting longitudinal vibrations.

10. Spring steel shaft for compound pendulum.

metallic model mounted on the wooden board

Metallic model mounted on the wooden board

The model is mounted on a wooden board.

The model is mounted on a wooden board

Gear-train is any combination of gear wheels by which motion is transmitted from one

shaft to another shaft. In epicyclic gear-trains, the axes of shafts on which the gears are

mounted may move relative to a fixed axis.

To measure epicyclic gear ratio between input shart and output shaft.

To measure epicyclic gear ratio between input shaft and holding drum.

To measure input torque, holding torque and output torque.

It consists of two types of epicyclic gear-trains

1. External Type and

2. Internal Type.

External type Epicyclic Gear Tain :

It is a hand driven demonstration model consisting of two bearing

blocks, supporting input and out put shafts through the epicyclic gear-train. The input shaft carries on

arm and pin on which the compound gear wheel is free to revolve and it meshes with the fixed wheel

and the wheel is keyed to the output shaft.

Internal type Epicyclic Gear Train :

It is a motorised unit consisting a SUN gear mounted on input shaft.

Two plane gears meshes 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.

A gear train with holding drum and a handle.

A compact gear train. (industrial).

Variable speed D.C.shunt motor

–

1 HP, 1500 rpm, 230 V.

Rope brake arrangement to measure output torque and holding

torque.

Digital Ammeter & Voltmeter.

RPM Indicator.

On-Off Switch.

D.C.Dimmerstat for varying speed.

The apparatus consists of a plain steel shaft excavated in a bearing and directly driven by a

FHP Motor. The bearing is freely supported on the shaft and sealed at the motor end. The speed of the

motor is controlled accurately by the speed control unit and it can be made run in both directions. Twelve

equal-spaced pressure taping around the circumference and four along the axis are provided and are

connected to manometer by PU Tubing so that the pressure head of oil in all tubes can be observed at a

time. The bearing can be loaded by attaching weights to the arm supported beneath it.

To study the pressure profile of lubricating oil at various conditions of load and speed.

Plotting the Cartesian polar pressure curves.

To measure the frictional torque and power transmit.

Electric supply 230 V AC, Single Phase.

Bench area 1.5 x 1.5 x 4 m

Tachometer to find out RPM of journal.

Oil SAE 40 about 5 Ltrs.

Journal Diameter 50 mm

Bearing Diameter 55 mm

Weights 4 adjustable weights.

Motor Variable speed FHP Motor

Control Panel For speed control of motor.

Manometer 16 Tubes.

Oil recommended SAE 40