Hydraulic coupling-gearbox performance test bench for closed power transfer

Abstract

The invention discloses a hydraulic coupling-gearbox performance test bench for closed power transfer. The hydraulic coupling-gearbox performance test bench comprises a prime motor, a power synthesis box, a hydraulic coupling, a first test gearbox, a transmission box, and a second test gearbox, wherein a first input shaft end of the power synthesis box is connected with an output shaft of the prime motor through a coupling, and an output shaft end of the power synthesis box is connected with an input shaft of the hydraulic coupling; an output shaft of the hydraulic coupling is connected with a high-speed shaft of the first test gearbox; a low-speed shaft of the first test gearbox is connected with an input shaft of the transmission box; an output shaft of the transmission box is connected with a low-speed shaft of the second test gearbox; a high-speed shaft of the second test gearbox is connected with a second input shaft end of the power synthesis box. By virtue of the power synthesis box, mechanical energy at the output end of the tested gearbox can be returned to the input end of the tested gearbox, so that the output energy of the gearbox serves as test power; an energy recovery mode is simple.

Description

【Technical field】 [0001] The invention relates to the field of performance detection of hydraulic mechanical transmission performance, in particular to a hydraulic coupling-gearbox performance test bench. 【Background technique】 [0002] The life and mechanical efficiency of hydraulic couplings and gearboxes are important indicators for evaluating the transmission performance of such equipment. At present, there are two types of test benches for testing the performance of these devices: open test benches and closed test benches. The open test bench has a simple structure and is easy to install, but the power required for the test can no longer be fed back, and the power consumption of the test bench is high, and the test cost is high. Usually, this kind of test bench is suitable for tests with low test power or short test periods. The other is a closed test bench with a power flow cycle of the test bench. This kind of test bench can recover the energy consumed by the test, a...

AI Technical Summary

Problems solved by technology

Among them, the most significant advantage of the mechanical transmission closed test bench is energy saving, which can reduce the operating cost, but compared with the open test bench, it increases the transmission device and the servo loading device, the composition is relatively complicated, and the price is relatively expensive. ;The mechanical structure of the electric energy transmission power closed test bench is simple and compact, the power loss is small, the efficiency is high, and the heat generation is reduced. However, the power recovery method is to convert the mechanical energy output by the test into electrical energy, and then recover it through the power grid. The structure and technology of the power system complex and costly

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