COMPARATIVE ANALYSIS OF STRUCTURES TEST APPARATUS FOR UNIVERSAL JOINT
An overview of the construction of test benches for testing carded transmission, such as a stand for the universal joint bearing tests, the lack of a stand is used as a loading device torsion shaft, which reduces the accuracy of creating stress in the joints of the driveline; stands with the inability to control the process of loading the driveline during drive- line tests; stand with a closed loop power transmission units for testing of vehicles and stand the test of aggregates of transmissions of vehicles, lack of which is the rapid overheating of the braking system, which occurs due to lack of cooling system is given. The aim of the study is to create a new design of test benches based on our analysis of test benches designs. An object stands for testing of universal joints with needle bearings is to test the driveline in a wide range of loads, comparative tests of joints of various sizes. The analysis stands for driveline test on needle bearings, as a result of which there was a need for a new design, a large range of different parameters of loading and ease of con- figuration; it is necessary to create a design system that allows testing of cardan transmission with high precision ad- justment of the angle of fracture driveline and ease of use; it is necessary to create a design system that allows testing driveline with the exception of overheating the braking system, as well as to ensure smooth regulation of the braking torque. The task of creating a new design, a large range of different parameters of loading and ease of configuration is achieved in that the drive is connected to the driveline via coupling through technology transfer and loading device is connected through a transfer case. The task of creating design systems that will allow testing of cardan transmission with high precision adjustment of the angle of fracture driveline and operating convenience is achieved in that, in a tester in driveline, which includes, mounted on the main frame: motor technology transfer, made in the form of a me- chanical gearbox, connected to the input shaft of the test driveline, wherein the output shaft of the driveline is connected to a load device through the draw gear and, distributing gear is mounted on an additional frame, which has the ability to move along the slits the main frame with fixing the position of the dispensing gear in the horizontal plane vernier, calibrated in units of angle fracture driveline. The task of creating design systems that will allow testing driveline with the exception of overheating the braking system, as well as to ensure smooth regulation of the braking torque, is achieved in that the loading device is designed as a hydraulic pump, the shaft of which is connected to the output shaft of the transfer gear and the input channel a hydraulic pump connected to the tank, and the outlet duct connected to the inlet throttle controlled, through a heat exchanger whose output is connected to the hydraulic tank, wherein the outlet channel between the hydraulic pump and the inlet throttle and a relief valve mounted manometer Suitably calibrated in terms of brake torque. Construction of the first of the proposed stand allows you to experience the driveline of different sizes in a wide range of load torque and driveline speeds. The construction of the second sentence of the stand allows you to experience the driveline of different sizes in a wide range of load torque, rotational speed and high precision tuning fracture driveline angle. The construction of the third sentence of the stand allows testing driveline, excluding overheating of the braking system by cooling the working fluid, and improve operational excellence by providing smooth regulation of the braking torque.