Description
Error: Contact form not found.
Drilling Tool Dynamometers
This is a armed wheel type strain gauge drill tool dynamometer designed to measure thrust and torque during drilling operation. This Dynamometer is suitable for drilling a hole up to 25mm size in mild steel. With this Dynamometer students can study the change in these force by varying speed, cut and feed
FEATURES:
1.Rigid in construction & Sensitive transuding and amplifying system for accuracy in force measurement.
2.Compact two channel digital force indicator.
3.Use of cutting fluid during operation is possible
SCOPE OF SUPPLY:
1.Mechanical sensing unit and work piece holder with strain gauges.
2.Control panel housing digital force indicator to measure both forces simultaneously, balancing potentiometer,
connoting cables.
3.Necessary switches, fuses and screen printed front plate.
4.The dynamometer is calibrated at factory with help of proving ring and readings are directly in the from of kg.
Related products
Motorised Gyroscope Apparatus
The apparatus consists of a rotor mounted in bearings. This rotor is free to rotate about
(i) Its own axis i.e. axis of spin.
(ii) Axis of precession.
(iii) Axis of gyroscopic couple.
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 OF MOTORISED GYROSCOPE APPARATUS:
1.Rotor dia. 250mm free about 3 axis of rotation driven by variable speed motor. 2.Dimmerstat to control the motor speed. 3.Stopwatch to measure the angular speed about the axis of precession. 4.Weights – 0.2 kg, 0.5 kg and 1 kg. 5.A technical manual accompanies the unit.SERVICES REQUIRE FOR MOTORISED GYROSCOPE APPARATUS:
1.220v stabilized AC supply with earthing connection. 2.Bench area – 0.5 x 0.5m at working height. 3.Tachometer for speed measurement (can be supplied at extra cost).
Generation Of Involute Gear Tooth Profile
This board illustrates the process of cutting of involutes Gear Teeth, by use of rack type cutter It consists of 3 white acrylic discs A, B, C. having pitch circle diameter 450 mm, 300 mm & 200 mm respectively. A gear tooth profile with module 25mm can be traced out on a peace of paper placed between disc and cutter. An affect of Interference and Undercutting on correct profile of gear tooth can be studied from the profiles traced.
Interference Undercutting
The board shows the demonstration of this phenomenon of Interference and Undercutting. When we rotate the teeth in anticlockwise direction, as the teeth is undercut is gives us a smooth working. When we give a rotation in clockwise direction, we can observe that the rack tip will be resisted by the tooth flank thus giving interference.
Tool Dynamometers
A machine-tool dynamometer is a multi-component dynamometer that is used to measure forces during the use of the machine tool. Empirical calculations of these forces can be cross-checked and verified experimentally using these machine tool dynamometers.
(1) Milling Tool Dynamometers
(2) Grinder Tool Dynamometers
(3) Lathe Tool Dynamometers
(4) Drilling Tool Dynamometers
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.
Specifications:
1. External type Epicyclic Gear Train: a. Bearing blocks for input & output shafts. b. A gear train with Holding drum and handle. 2. Internal Type Epicyclic Gear Train: a. A compact Gear Train. b. Variable speed D.C. Motor c. Rope brake arrangement to measure output torque and holding torque. 3 Control Panel comprising of a. Digital Ammeter and Voltmeter. b. RPM Indicator. c. Speed Controller.Experimentation –
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.
Motorised Governor Apparatus
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.
SPECIFICATIONS OF MOTORISED GOVERNOR APPARATUS:
1.Test shaft – 4.75 mm, 6.35 mm and 7.9 mm – 2 each. 2.Bearing to provided end conditions, (a) Both ends fixed, (b) One end fixed and one end free. 3.Drive motor 1/8 HP, 1500 rpm with control arrangement. 4.The whole unit is mounted on a sturdy base. 5.Rotor for each shaft of suitable size. 6.A technical manual accompanies the unit.SERVICES REQUIRE FOR MOTORISED GOVERNOR APPARATUS:
Floor space area of 2m. X 1m. at working height. 230V, 15 A, AC electric supply connection.
Slip Creep Measurement Apparatus
The apparatus consists of a variable speed D.C. Motor, Driving pulley and Driven pulley of equal diameter. The pulleys are mounted on input shaft (Motor shaft) and output shaft. The driven pulley can slide on the base with bearing block to change initial tension in belt. Brake drum is mounted on output shaft helps to measure power output. The motor speed is varied by dimmerstat. A two channel RPM Indicator is provided to measure speeds of driven and driving pullies respectively.
Specifications:
1.D.C. Motor – 1 HP, 1500 RPM, variable speed. 2.Driving & Driven puilies of equal diameters. 3.Brake drum along with spring balance. 4.Fiat Belt of fixed length of following materials – (i)Fabric Belt (ii)Canvas Belt. (iii)Rubber Belt. 5.Belt tightening arrangement. 6.Speed Controller unit. 7.Two Channel digital RPM Indicator. 8.Stroboscope.Experimentation –
1. To measure co-efficient of friction between pulley material and different belt materials. 2. To measure power transmitted with varied belt tensions and plotting graph of (T1 – T2).Tension Characteristics. 3. To measure percentage slip at fixed belt tension by varying load on brake drum and plot graph of (T1-T2) Vs.percentage slip.i.e. Slip Characteristics. Finding a creep zone from graph. 4. To measure belt slip speed and observe the limiting value float at constant speed when the slip just starts.Service Required:
1.230 V.A.C. stabilized power supply 2.Space -. 1.5m x 1.5 m.
Reviews
There are no reviews yet.