In the laboratories of Czech Technical University in Prague a new inertia test stand was designed and realised. Its main purpose is to test the behavior and endurance of the internal shift mechanisms of passenger car gearboxes. In this paper we present further usage of the test stand, which consists of measurement of gearbox losses. The gearbox on the inertia test stand cannot be loaded; therefore the target is the measurement of losses resulting mainly from splash lubrication and some additional gearbox friction (e.g. friction in shaft sealing, bearing losses). The most typical passenger car mechanical five speed gearbox for transversal position of the drivetrain was chosen for this experiment.
The article focuses on description of design of the test stand for shafts with universal joints and constant velocity joints. The shafts can be loaded by torque at specified speed of rotation, while retaining the possibility of setting a variable angle between input and output. All shafts are instrumented with contactless signal transmission. In addition, ventilator simulates the cooling derived from the driving speed.
KEYWORDS: HOOKE'S JOINT, CV-JOINT, TEST STAND SHRNUTÍČlánek popisuje zkušební stav pro měření kloubových hřídelů. Hřídele mohou být zatěžovány točivým momentem při různých otáčkách a měnícím se úhlu zlomu. Měřené hřídele jsou vybaveny snímaním teploty kloubů s telemetrickou soupravou přenosu signálu. Klouby jsou chlazeny náporovým ventilátorem, který simuluje ochlazování kloubů při jízdě vozidla.
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