Theory of Machines Lab in Bangladesh

EDIBON teaching and research units for the theory of machines laboratory, supplied, installed and commissioned in Bangladesh by Vvon with faculty training included. 38 units available.

38 products from 1 manufacturer: EDIBON.

Products

• MBD: Slider Crank Mechanism — EDIBON: MBD is a demonstration unit for the slider crank mechanism used in engines and compressors. Turning the crank moves a slider in a guide so displacement, velocity and acceleration of the slider can be plotted against crank angle. Stroke can be changed on the crank.
• MYE: Scotch Yoke Mechanism — EDIBON: MYE demonstrates the Scotch yoke, a mechanism that converts rotation into pure simple harmonic linear motion. Students record slider displacement against crank angle and compare the measured trace with the sine curve predicted by theory.
• MBM1: Slotted Link Mechanism — EDIBON: MBM1 demonstrates the slotted link quick return mechanism used on shaping machines. The crank drives a pivoted slotted lever so students can measure the ratio between cutting and return stroke times and plot ram displacement against crank angle.
• MBM2: Whitworth Quick Return Mechanism — EDIBON: MBM2 is a model of the Whitworth quick return mechanism used in shaping and slotting machines. Rotating the crank drives the ram through a slotted link, so the quick return ratio and the ram displacement diagram can be obtained.
• MCA: Four-Bar Mechanism — EDIBON: MCA is an adjustable four bar linkage for studying plane kinematics. Link lengths can be changed to obtain crank rocker, double crank and double rocker arrangements, and input and output angles are read on graduated scales.
• MME: Geneva Stop Mechanism — EDIBON: MME demonstrates the Geneva stop, an intermittent motion mechanism used for indexing. A driving pin engages the slots of a Geneva wheel so students can observe dwell and index periods and measure the angular relationship between driver and follower.
• MAC: Coupling Mechanism — EDIBON: MAC lets students study shaft couplings and the effect of misalignment. Different coupling types can be fitted between two shafts so the transmission of angular motion under aligned and misaligned conditions can be compared.
• MUN: Hooke's Joint Mechanism — EDIBON: MUN is a demonstration unit for the Hooke universal joint. Input and output shaft angles are read on graduated dials at different shaft inclinations, so the cyclic velocity fluctuation of a single joint and its cancellation in a double joint can be measured.
• MEX: Cam and Follower Mechanism — EDIBON: MEX is used to plot the displacement diagrams of cams. Interchangeable cam profiles and follower types are fitted and follower lift is measured against cam angle with a dial gauge. Students compare measured profiles with the theoretical curves.
• MBI: Crank Mechanism — EDIBON: MBI demonstrates the basic crank and connecting rod arrangement. Students measure piston displacement against crank angle and study the effect of connecting rod length on the resulting motion. It supports engine kinematics teaching.
• MDA: Ackermann Steering Mechanism — EDIBON: MDA is a model of the Ackermann steering linkage used on road vehicles. Steering angles of the inner and outer wheels are read on graduated scales so students can check the geometric condition for correct cornering and study steering error.
• MMEL: Winch Mechanism — EDIBON: MMEL is a geared winch model for studying lifting machines. Effort and load are measured while the winch raises known weights, giving velocity ratio, mechanical advantage and efficiency, and allowing the law of the machine to be plotted.
• MBLU: Bar Linkages Unit — EDIBON: MBLU is a construction set of bars, pivots and sliders for assembling plane linkages. Students build and analyse different four bar and slider arrangements and trace coupler curves. It supports kinematics and mechanism design teaching.
• MTSF: Worm and Wheel Unit — EDIBON: MTSF is used to study the worm and wheel drive. Load and effort are applied through calibrated weights so velocity ratio, mechanical advantage and efficiency can be measured, and the self locking behaviour of the drive observed.
• MAE: Acceleration of Geared System Unit — EDIBON: MAE is used to study the angular acceleration of a geared system driven by a falling weight. Students measure acceleration for different gear ratios and inertias and determine the equivalent inertia referred to the input shaft.
• MSDA: Simple Drives Assembly Unit — EDIBON: MSDA is a kit for assembling and testing simple mechanical drives such as belt, chain and gear transmissions. Students mount each drive on a common frame and compare speed ratio, slip and efficiency between the arrangements.
• MCDA: Combined Drives Assembly Unit — EDIBON: MCDA extends the simple drives kit to combined transmissions, where belt, chain and gear stages are assembled in series on a common frame. Students calculate and then verify the overall speed ratio and study the losses in each stage.
• MGTA: Gear Train Assembly Unit — EDIBON: MGTA is used to assemble simple, compound and reverted gear trains on a slotted plate. Students calculate train values, verify them by counting revolutions and study the direction of rotation in each arrangement.
• MGE: Gear Generation Unit — EDIBON: MGE demonstrates how involute gear teeth are generated by the rack cutter method. A paper disc is indexed under a rack template so the tooth profile is drawn step by step, showing undercutting and the effect of profile shift.
• MEE: Geared Lifting Unit — EDIBON: MEE is a geared lifting model for studying hoists. Effort is applied to raise known loads so mechanical advantage, velocity ratio and efficiency can be measured and the law of the machine plotted from the results.
• DMGT: Dynamic Multistage Gear Train Analysis Unit — EDIBON: DMGT is used to analyse multistage gear trains under running conditions. Speed and torque are measured at the input and output of each stage so the ratio, transmitted power and efficiency can be obtained across the whole train.
• MESE-T: Geared Study — EDIBON: MESE-T is a bench unit for studying gear drives and their transmission ratios. Different gear pairs are fitted so students can measure input and output speeds, verify the calculated ratio and examine tooth engagement.
• KSGT: Unit for the Kinematic Study of Gear Trains — EDIBON: KSGT is used for the kinematic analysis of gear trains, including epicyclic arrangements. Students hold different members fixed in turn and measure the resulting speeds to determine the train value by the tabular method.
• MBMRC: Computer Controlled Balance of Reciprocating Masses Unit — EDIBON: MBMRC is a computer controlled unit for studying the balancing of reciprocating masses. Crank arrangements with adjustable masses are run at controlled speed while primary and secondary out of balance forces are recorded through the data acquisition system.
• MEAL: Cam Analysis Unit — EDIBON: MEAL is used for the dynamic analysis of cams. Interchangeable cam profiles drive a follower whose lift is recorded against cam angle, and follower jump can be studied by varying the running speed and the spring load.
• MGI: Gyroscope — EDIBON: MGI is a motorised gyroscope for studying gyroscopic effects. Rotor speed and applied precession are measured so students can verify the relationship between spin velocity, precession velocity and the resulting gyroscopic couple.
• CGU: Centrifugal Governor Unit — EDIBON: CGU is used to study engine speed governors. Porter, Proell and Hartnell arrangements can be run at controlled speed so sleeve lift is measured against rotational speed, giving the characteristic curve, sensitivity and effort of each governor.
• MED: Static and Dynamic Balancing Unit — EDIBON: MED is used to balance rotating masses on a shaft. Weights are set at chosen angular and axial positions and the shaft is run in flexible bearings, so students can find the balancing mass and angle for both static and dynamic balance.
• MES: Simple Balancing Unit — EDIBON: MES is a basic unit for balancing rotating masses in a single plane. Known masses are fixed at different radii and angles on a disc and the required balancing mass is then determined experimentally and by calculation.
• MEVTC: Computer Controlled Torsional Vibration Unit — EDIBON: MEVTC is a computer controlled unit for studying torsional vibration of shafts and rotor systems. Free and forced torsional oscillations are excited and the response is recorded through the data acquisition system, giving natural frequencies and damping.
• MVRE: Spiral Torsion Spring Vibration Unit — EDIBON: MVRE is used to study the torsional oscillation of a mass supported by a spiral spring. Students measure the period of oscillation for different inertias and spring stiffnesses and compare the measured values with theory.
• MVL: Free Vibration Unit — EDIBON: MVL is a bench unit for studying the free vibration of beam and spring systems. Students measure the natural frequency and observe how amplitude decays with damping, comparing measured results with calculated values.
• MVLF: Free & Forced Vibration Unit — EDIBON: MVLF covers both free and forced vibration of a beam and spring system. An out of balance exciter drives the beam over a range of frequencies so resonance, amplitude response and the effect of a damper can be measured.
• CMVAS: Comprehensive Mechanical Vibration Analysis Unit — EDIBON: CMVAS is a modular rig for mechanical vibration analysis. It supports free and forced vibration, damping, resonance and balancing experiments on a common frame, with the measured response compared against theory.
• MEVLB: Unit for Studying Free Vibration of a Bar — EDIBON: MEVLB is used to study the free vibration of a rigid bar supported by springs. Students vary the spring position and the added mass, measure the resulting natural frequency and compare it with the calculated value.
• MOT: Torsional Oscillations Unit — EDIBON: MOT is used to study the torsional oscillation of discs on shafts. Students measure the period for single and two rotor systems, locate the position of the node and obtain the modulus of rigidity of the shaft material.
• MVCC: Computer Controlled Critical Speed Investigation Unit — EDIBON: MVCC is a computer controlled rig for finding the critical speed of rotating shafts. Shaft speed is ramped through resonance while deflection is recorded, so measured whirling speeds can be compared with calculated values for different shaft supports.
• MEER: Whirling of Shafts Unit — EDIBON: MEER is used to observe the whirling of rotating shafts. Shafts of different diameter and end fixing are run up to and through their critical speed so the first and higher whirl modes can be seen and the speeds recorded.

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