g1 mechanical models experiments

TM 090 Vertical Stand for Mechanical Demonstration Units

* Sturdy steel support for fitting experimental units as an alternative to wall mounting

Technical DescriptionThe stand is used for the convenient attachment of mechanical demonstration models from the TM and EM series which can otherwise be wall-mounted. By means of several elongated holes, all the relevant units can be bolted in place using M8 machine bolts and nuts. A writing surface, of adjustable height, is attached to the side of the stand. The support rests on castors which allow for ease of movement but which can also be locked in position to ensure secure support during experimentation.

Learning Objectives / ExperimentsCan be used for all experimental units in the TM and EM series which are intended for wall mounting: - TM 121, TM 122, TM 123, TM 161, TM 162, TM 163, TM 164, TM 226, TM 228, TM 232, TM 236, TM 612, TM 613, EM 050, EM 052

Specification[1] Sturdy stand for fitting experimental units from the TM and EM series as an alternative to wall mounting [2] Installed height: 1300...1640mm [3] Writing and storage surface: 459x350mm [4] Sturdy steel tube support on four locking castors

Technical DataInstalled height: 1300...1640mm Writing surface: 459x350mm

Dimensions and Weightl x w x h : 500 x 500 x 1700 mm Weight : approx. 35 kg

Scope of Delivery1 stand

Order Details

040.09000 TM 090 Vertical Stand for Mechanical Demonstration Units

G.U.N.T Gerätebau GmbH, Fahrenberg 14, D-22885 Barsbüttel, Phone +49 (40) 67 08 54-0, Fax +49 (40) 67 08 54-42, E-mail [email protected], Web http://www.gunt.de We reserve the right to modify our products without any notifications.

/109/2006

[1] Demonstration and student experiment on theequilibrium of moments[2] Pulley diameter: Ø75mm, Ø150mm[3] Pulleys made of aluminium, anodised[4] Set of weights: 2x up to 18N, in stages,weights made of steel[5] Ball bearing mounted steel shaft[6] Wall mounting plate made of aluminium, anodised[7] lxwxh 250x200x250mm

• Impressive demonstration of the equilibrium of moments

The model demonstrates in experiments the laws on the formation of anequilibrium of moments in static systems. Two pulleys made of anodisedaluminium with different radii are fitted to a steel shaft mounted on ballbearings. Easy to change weight discs can be hung on cords placed around thepulleys. In this way it is possible to quickly make changes to the peripheralforce on the pulleys. The anodised aluminium base plate is intended for wallmounting, however it can also be attached to the TM 090 Vertical Standavailable as an accessory.

• Equilibrium of moments

Pulley diameter: Ø75mm, Ø150mmSet of weights: 2x up to 18N, steppedBase plate: wxh 200x250mmHole spacing: 180x230mm, Ø10mm

l x w x h : 250 x 200 x 250 mmWeight : approx. 11 kg

040.12100 TM 121 Wheel and AxleApparatus

1 support with shaft and pulleys,1 set of weights, 2 cords, 1 instruction manual

Specification

Technical description

Scope of delivery

Experiments

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Technical data

Dimensions and weight

WHEEL AND AXLE APPARATUSTM 121

G.U.N.T. Gerätebau GmbH, P.O.Box 1125, D-22881 Barsbüttel, Phone +49 (40)670854-0, Fax +49 (40)670854-42, E-mail [email protected], Web http://www.gunt.deWe reserve the right to modify our products without any notifications.

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[1]Experiment on the equilibrium of forces andmoments on a differential pulley block[2]Pulley diameter: Ø250, Ø100, Ø50mm[3]Pulleys made of anodised aluminium[4]Set of weights: 2x up to 18N, steel[5]Ball bearing mounted steel shaft[6]Support made of anodised aluminium[7] Intended for wall mounting[8] lxwxh 300 x 280 x 250 mm

• Equilibrium of forces and moment• Demonstration of the force reduction on a differential pulley block

The model demonstrates the conditions of equilibrium on a differential pulleyblock. Three anodised aluminium pulleys of different diameter are fitted to ashaft mounted on ball bearings. The forces act, on the one hand, directly on theperipheral of the largest pulley, on the other hand, via a roller on two smallerpulleys. Easy to interchange weights permit the load to be varied such thatequilibrium is obtained. The model is intended for wall mounting, however themodel can also be attached to the TM 090 Vertical Stand available as anaccessory.

• Equilibrium of forces• Equilibrium of moments• Relationship between force reduction and cord travel

Pulley diameter:Ø250mm, Ø100mm, Ø50mmSet of weights: 2x up to 18NBase plate: wxh 300x250mmHole spacing: 280x230mm, Ø10mm

L x w x h : 300 x 280 x 250 mmWeight : 15 kg

040.12200 TM 122 Wheel and DifferentialAxle Apparatus

1 support with pulleys, 1 set of weights,1 loose roller, 2 cords, 1 instruction manual

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Scope of delivery

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WHEEL AND DIFFERENTIAL AXLE APPARATUSTM 122


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TM 123 Spur Gear Lifting Apparatus

* Mode of operation and layout of toothed gearing mechanisms

Technical DescriptionThe mechanism demonstrates the relationship between the ratio of the number of teeth on spur gears and the transmission ratio of gears. With straightforward experiments, the torque conversion in gear wheel pairs and the efficiency of a gear unit are investigated. The model is intended for wall mounting. Alternatively, it can be attached to the TM 090 mounting frame. The well-structured instructional material outlines the technological fundamentals and provides a step-by-step guide through the experiments.

Learning Objectives / ExperimentsLearning the key variables and correlations of a spur gear: - Velocity ratios of spur gears - Gear with intermediate wheel or two-stage gearing - Influence of friction on transmission - Determining efficiency

Specification[1] Demonstration and student experimentation unit on the mode of operation and function of toothed gearing mechanisms [2] 4 galvanised steel gear wheels [3] 2 anodised aluminium cable pulleys [4] 2 sets of weights [5] Ball bearing-mounted gear wheels and pulleys [6] Anodised Aluminium base plate [7] l x w x h 350x70x150mm

Technical Data4 gear wheels: - 2x D=126mm, 84 teeth - 2x D=42mm, 28 teeth - modulus: m=2mm Driving pulley radius: 35mm Weights: - 2x 1N suspended - 2x 0.25N - 1x 0.5N - 2x 1N - 2x 2N - 2x 2.5N Base plate: l x w x h: 350x150x10mm


Scope of Delivery1 gear unit, mounted on base plate 2 sets of weights 1 set of instructional material

Order details

040.12300 TM 123 Spur Gear Lifting Apparatus


Page 1/108/2006

TM 124 Worm and Wheel Apparatus

* Mode of operation and layout of a worm gear

Technical DescriptionTM 124 permits investigations of the torques and the efficiency of the gear unit. The transmission ratio of the gear can be determined. Students learn the basic terminology of gearing in a simple manner: numbers of teeth; modulus; reference circle and axle base. The worm gear wheel and worm are ball bearing-mounted. The forces are generated by the sets of weights and can be quickly and easily varied. The model is intended for wall mounting. Alternatively, it can be attached to the TM 090 mounting frame. The well-structured instructional material outlines the technological fundamentals and provides a step-by-step guide through the experiments.

Learning Objectives / ExperimentsLearning the key variables and correlations of a worm gear: - Investigating: transmission ratio, torque, friction and self-locking - Determining efficiency

Specification[1] Demonstration and student experimentation unit on the mode of operation and function of a worm gear [2] Bronze worm gear wheel [3] Steel worm [4] 2 Aluminium side drums [5] 2 sets of weights [6] Worm, worm gear wheel and pulleys ball bearing-mounted [7] Anodised aluminium base plate [8] l x w x h 250x150x200mm

Technical DataSide drum diameter: - on worm shaft: d=40mm - on worm gear wheel shaft: d=120mm Worm drive: - axle base: 80mm - transmission ratio: 30:1 - modulus: m=4mm - number of gears: 1 - power transmission: 10 Weights on worm side: - 1x 50N - 1x 20N - 2x 10N - 1x 10N (suspended with balance mass) Weights on worm gear wheel: - 1x 5N - 4x 2N - 1x 1N - 1x 0.5N - 1x 0.5N (suspended) Base plate: l x w x h: 250x200x12mm


Scope of Delivery1 gear unit, mounted on base plate 2 sets of weights 1 set of instructional material

Order details

040.12400 TM 124 Worm and Wheel Apparatus


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[1] Experiments on the oscillation of pendulums,comparison of physical and mathematical pendulums[2] Rod pendulum made of metal: 1000mm, 0.39kg,with sliding knife edge bearing[3] Additional weights: 0.49kg, Ø50mm,can be moved[4] Thread pendulum: up to 2000mm,0.52kg, Ø50mm[5] Base plate for wall mounting[6] lxwxh: 250x80x(2000)mm

• Investigation on the oscillation of pendulums• Comparison of physical and mathematical pendulum

The model is used to investigate the oscillation of pendulums. During thisprocess a physical pendulum is compared with a mathematical pendulum. Theunit includes a metal bar with additional sliding weights as a rigid pendulum.The suspension point can be adjusted at the knife edge bearing of thependulum. The length of the thread pendulum included can be easily variedusing a clamping device. The components of the experiment are attached to abase plate intended for wall mounting. Alternatively, the TM 090 Vertical Standcan be used. The model is suitable for student experiments.

• Period of thread and rod pendulums• Determination of the centre of gravity on a rod pendulum• Reduced pendulum length and centre of inertia of the rod pendulum

Thread pendulum: length up to 2000mm,Ø50mm, 0.52kgRod pendulum: length 1000mm, 0.39kgAdditional weights: Ø50mm, 0.49kgBase plate (wxh): 250x200mm

l x w x h: 250 x 80 x (2000) mmWeight : approx. 5kg

040.16100 TM 161 Compound PendulumApparatus

1 base plate, 1 thread pendulum, 1 rod pendu-lum with additional weight, 1 instruction manual

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COMPOUND PENDULUM APPARATUSTM 161


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[1] Rotary and pendulum oscillation experimentswith various bodies on bifilar / trifilar pendulums[2] Rapid action clamp for the suspension cords[3] Bar: 40x40x160mm, 2kg, steel, galvanised[4] Cylinder: Ø160x19mm, 3kg, steel, galvanised[5] Hollow cylinder: oØ160, iØ100, 41mm high,4kg, steel, galvanised[6] Suspension cord length up to 2000mm possible[7] lxwxh 205x200x(2000)mm

• Ideal mathematical pendulum can be demonstrated• Moment of inertia in an experiment on a rotary pendulum

The model permits oscillations on pendulums with bifilar or trifilar suspension to beinvestigated. For this purpose a bar, a cylinder, or a hollow cylinder made ofgalvanised steel can be hung from a wall mounted carrier plate made of aluminiumand placed in oscillation. The bodies used in the experiments have strong steelhooks for attachment to the suspension cords. The length of the cords can berapidly changed and securely fixed using clamping wheels. The beam can oscillate,by translation, in the plane of suspension like an ideal mathematical pendulum. Thecylinder and the circular ring work as rotary pendulums.

• Oscillation experiments on a mathematical pendulum• Determination of the centre of inertia of a beam, a cylinder and a hollow

cylinder in a rotary pendulum experiment

Bars: 40x40x160mm, 2kgCylinder: Ø160x19mm, 3kgHollow cylinder: Ø160/100x41mm, 4kgCord thread length: up to 2000mmBase plate: wxh 200x250mm

l x w x h : 205 x 200 x (2000) mmWeight : approx. 12 kg

040.16200 TM 162 Bifilar / TrifilarSuspension Apparatus

1 base plate, 1 beam, 1 cylinder,1 hollow cylinder, 1 instruction manual

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Scope of delivery

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BIFILAR / TRIFILAR SUSPENSION APPARATUSTM 162


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[1]Student experiment on torsional vibration[2]Torsion wires 1100mm, made of aluminium[3]Diameter: Ø2, Ø3, Ø4, Ø5 and Ø6mm[4]Mass disc: Ø160mm, galvanised steel[5] Mass ring: oØ160mm, iØ100mm, galvanised[6]Strong chuck for fitting the wires[7]Base frame made of anodised aluminium,intended for wall mounting[9] lxwxh 200x150x270mm

• Easy to adjust effective length using strong chuck

The model enables rotary vibration on torsion bars to be investigated. Themodel consists of a wall mounted base frame made of aluminium. The carrierplate has a strong chuck with the aid of which the torsion bars can be clampedin position. In the same way the mass disc and the mass ring are clamped tothe torsion bar using a chuck. The effective length is easy to adjust.

• Determination of the period of torsional vibration as a function of:- The torsion wire length- The torsion wire diameter- The rotating mass and its form

Test wires 1100mm, made of aluminiumDiameter: Ø2, Ø3, Ø4, Ø5 and Ø6mmMass disc: Ø160mmMass ring: oØ160mm, iØ100mm


040.16300 TM 163 Torsional VibrationApparatus

1 support, 5 test wires, 1 mass disc, 1 massring, 1 instruction manual

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TORSIONAL VIBRATION APPARATUSTM 163


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[1] Investigation of vibrations on a spiral spring-rotating mass system[2]Spiral spring cross-section: 10x1mm[3]Arm radius of the rotating mass: 36...150mm[4]Weights: 0.5kg[5] Integrated angle measuring scale,1° graduations[6]Unit intended for wall mounting[7] lxwxh 250x200x366mm

• Vibration experiment on a spiral spring-rotatingmass system

A spiral spring made of cold rolled steel is clamped between a ball bearingmounted shaft and a fixed bracket. Two arms are fitted to the shaft diametricallyopposite each other. Two sliding pieces of metal on the arms can be securelyfixed in position using clamping screws. These form the rotating mass with anadjustable moment of inertia. The system is displaced by hand. The angle ofrotation is read off on a 1° scale disc that is also attached to the shaft. The unitis intended for wall mounting.

• Determination of the stiffness of a spiral spring• Determination of the natural frequency of a spiral spring-rotating mass system

- With varying total vibrating mass- With varying mass distribution

Spiral spring, cross-section: 10x1mmSpring length: approx. 800mmInside radius: 10mm, outside radius: 50mmWeights: 0.5kgArm radius of the rotating mass: 36...150mm


040.16400 TM 164 Vibration of Spiral SpringApparatus

1 kinetic model, complete,1 instruction manual

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VIBRATION OF SPIRAL SPRING APPARATUSTM 164


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TM 226 Cable and Belt Friction

* Fundamentals of cable and pulley friction

Technical DescriptionThe model allows the friction coefficients of different friction belts to be determined. The influence of the angle of contact on the necessary driving force can also be investigated. A ball bearing-mounted cable pulley is slotted to allow for the fitting of round, flat and V-belts. Different friction belts are placed around the pulley at angles of contact from 0° to 180° and a defined load applied to them using weights. The relative motion of the pulley is generated by another set of weights. The model is intended for wall mounting. Alternatively, it can be attached to the TM 090 mounting frame. The well-structured instructional material outlines the technological fundamentals and provides a step-by-step guide through the experiments.

Learning Objectives / Experiments- Eytelwein's cable friction formula: friction force as a function of angle of contact - Comparison of different belt types

Specification[1] Demonstration and student experimentation unit on cable and pulley friction [2] Testing Eytelwein's cable friction formula [3] Flat belt [4] V-belt [5] Round belt [6] Ball bearing-mounted cable pulley, d=150mm [7] Angle of contact 0...180°, pitch 15° [8] 2 sets of weights [9] Anodised aluminium base plate [10] l x w x h 200x100x250mm

Technical DataFlat belt: - 10x2.2mm - leather/polyamide V-belt: - 5x3mm - rubber/fabric Round belt: - d=3mm - hemp Weights: - 2x 1N suspended - 4x 2N - 8x 5N Base plate: l x w x h: 250x200x12mm


Scope of Delivery1 friction unit, mounted on base plate 3 belts 2 sets of weights 1 set of instructional material

Order details

040.22600 TM 226 Cable and Belt Friction


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[1]Model for performing experiments on surfacefriction and the function of a plate clutch[2]Friction disc, full: 250mm, steel, galvanised[3]Friction disc, ring: od 250mm, id 150mm[4]Friction disc with clutch lining: 250mm[5]Loose friction disc: 250mm, 29N[6]Additional weights: 2x30N[7]Support for wall mounting[8] lxwxh: 300x275x250mm

• Comprehensive experiment on surface friction and on thefunction of plate clutches

Using this unit, the term surface friction and the function of a plate clutch canbe studied in experiments. Various metal discs are attached to the support forthe experiments; these form the mating face. The upper loose friction disc madeof steel is placed against these discs. The loose friction disc can be rotated andis fitted to a bearing stud. The disc is driven by attaching weights to a belt thatpasses around the circumference of the disc; the rope is guided using low fric-tion ball bearing mounted pulleys. The weight of the loose disc and the addi-tional weights applied generate the necessary contact pressure.

• Relationship between contact force and friction moment• Influence of the materials used on the friction moment• Influence of the friction surface geometry on the friction moment

Friction disc, full: 250mm, steel, galvanisedFriction disc, ring: od 250mm, id 150mmFriction disc with clutch lining: 250mmLoose friction disc: 250mm, 29NAdditional weights: 2x30N


040.22800 TM 228 Clutch Plate FrictionApparatus

1 support, 4 friction discs, 2 additional weights,2 sets of weights, 1 instruction manual

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CLUTCH PLATE FRICTION APPARATUSTM 228


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TM 232 Bearing Friction Apparatus

* Journal bearing friction with different bearing materials; comparison with roller bearing friction

Technical DescriptionThe model permits investigation of friction in journal and roller bearings. Friction moments can be measured and comparisons made between different bearing designs. It is also possible to perform experiments on the dynamics of rotation. The flywheel's bearing journal can be mounted in different ways with this model. This is achieved through the use of three easily interchangeable journal bearing shells made from different materials. A roller bearing pair is also provided as an alternative mounting. The model is intended for wall mounting. Alternatively, it can be attached to the TM 090 mounting frame. The well-structured instructional material outlines the technological fundamentals and provides a step-by-step guide through the experiments.

Learning Objectives / Experiments- Determining the friction moments on journal bearings: various friction pairings possible through the use of interchangeable bearing shells - Determining the friction moment on a roller bearing - Comparison between journal and roller bearings - Experiments on the fundamentals of rotational dynamics

Specification[1] Demonstration and student experimentation unit on journal bearing friction. Various friction pairings possible. Comparison with roller bearings [2] 3 different bearing materials for journal bearing shells [3] Stainless steel shaft [4] Steel flywheel [5] Drive by cable reel and set of weights [6] Anodised Aluminium base plate [7] l x w x h 200x330x300mm

Technical DataJournal bearing half shell material: - GG25 grey cast iron - gunmetal - PTFE (Teflon) Grooved ball bearing: Type 6203 Shaft bearing journal: d=17mm Flywheel: - d=300mm - mass: 22.2kg Weights: - 1x 1N suspended - 5x 1N - 1x 2N - 3x 5N Base plate: l x w x h: 250x200x12mm


Scope of Delivery1 bearing friction unit, mounted on base plate 6 bearing shells 2 roller bearings 1 set of weights 1 set of instructional material

Order details

040.23200 TM 232 Bearing Friction Apparatus


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[1]Student experiment on the moment of massinertia of a flywheel[2]Steel flywheel Ø300mm, 14kg[3]Drive pulley Ø22mm[4]Weight set up to 20N[5]Ball bearing mounted shaft[6]All metal construction[7]Wall mounting or TM 090 stands[8] lxwxh 355x200x300mm

• Uniformly accelerated angular motion during the experiment

Using the TM 612 Flywheel Apparatus, basic experiments on uniformly acceler-ated angular motion can be performed. A flywheel mounted in ball bearings isplaced in motion by a weight attached to a pulley. The inertia of the flywheel canbe determined from the fall time of the weight. The unit is intended for wallmounting. However, it is also possible to use the TM 090 vertical stand manu-factured by G.U.N.T. Due to the clear, robust construction the unit is excellentlysuited to student experiments.

• Experimental determination of the mass moment of inertia of a metal fly-wheel

Flywheel: Ø300mm, 40mm wide, 22kgPulley: Ø22mmSet of weights: up to 20NMounting hole spacing: 230x180mm, Ø10mm

l x w x h : 200 x 355 x 300 mm, approx. 30 kgBase plate: l x w 250 x 200 mm

040.61200 TM 612 Flywheel Apparatus

1 flywheel on base plate, 1 set of weights,1 instruction manual

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FLYWHEEL APPARATUSTM 612


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[1]Student experiment on the dynamics of rota-tion with changing mass moment of inertia[2]Steel flywheel Ø300mm, 14kg[3] Additional disc Ø178mm, 3.5kg[4]Additional ring Ø178/250mm, 3.5kg[5]Plotter, oscillating pen, 10Hz[6]Weight set up to 20N[7]Wall mounting or TM 090 stands[8] lxwxh 350x250x330mm

• Accelerated angular motion with variable masses• Graphic recording of the angular motion over time

Using the TM 613 Comprehensive Flywheel Apparatus, basic experiments onuniformly accelerated angular motion can be performed. A ball bearing mountedflywheel can be placed in motion using weights attached to a cord. Additionalmasses enable the moment of inertia of the flywheel to be varied. An oscillatingpen records the accelerated angular motion of the wheel. The unit is excellentlysuited to student experiments. The unit is intended for wall mounting, howeveras an alternative it can be also be used with the TM 090 stand manufactured byG.U.N.T.

• Experimental determination of the mass moment of inertia• Influence of varying angular accelerations on the angular motion• Influence of varying mass moments of inertia on the angular motion

Flywheel: Ø300mm, 14kg, 0.107kgm² additionaldisc: Ø178mm, 3.5kgAdditional ring: Ø178/250mm, 3.5kgPlotter: oscillating pen, 10HzSet of weights: up to 20N

l x w x h : 350 x 250 x 330 mm, approx. 28 kgBase plate : w x h : 250 x 200 mm

040.61300 TM 613 Comprehensive FlywheelApparatus

1 experimental apparatus, 1 additional ring, 1 ad-ditional disc, 1 set of weights, 1 instruction manual

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Scope of delivery

Experiments

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Technical data


COMPREHENSIVE FLYWHEEL APPARATUSTM 613


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