Research Of Performance Testing System Of Cycloid Cam Planetary Speed Reducer

In current time, speed reducer is progressing in the manufacture technics. The developing of industry technology has improved the performance of reducer, and extended the category about it. Cycloid cam planetary speed reducer which is belong to it has attracted by its excellence such as the advantage of reliable performance, structure tightly packed, small physical volume, light weight and spreads to move steady, the noise and operates simple, work credibility etc. And as to them, this kind of reducer has applied to more fields.However, as more application, testing system never walk forward in step with it. Basing on it, this article produces testing system about cycloid cam planetary speed reducer. In order to produce full-scale testing, this testing system, considering the character of diverse work performance in manifold condition, has designed different testing manner.In this paper, the cycloidal gear reducer principle is analyzed. And cycloid and cam, dowel and hole. Bearing arms and switch between the forces of the analysis, and the establishment of a mechanical model. Article on the test system design are described, focusing on the overall test system framework, and in the various test system components and the selection principle. Testing the system of signal processing, the paper focused on the analysis. Based on the signal processing system of the study of a signal synchronization circuit, the circuit in the use of the trigger, With the use of trigger input and output clock signal pulse of the theory of signal synchronization. This circuit can be avoided excessive pulse and pulse recorded in SCM arise lost the pulse, and slow pulse changes resulting from duplicate records a pulse, which played synchronous circuit regulatory role.In the system hardware architecture, reducer input and output ports were installed speed torque sensor, and the use of three-phase asynchronous motor as sources of power reducer, as with magnetic brake cycloidal gear reducer load In order to achieve under different conditions for testing, we also used the three-phase inverter for induction motor control, use speed loader on magnetic brake control.Signal acquisition is a key step, in the signal processing of signals need to find the relevant parameters were measured and the relationship between the need for the establishment of a Function. After the signal analysis found that Shaft in torsion at the corner and internal sensors detected the two signal proportional to the phase difference. Shaft and the angle between the torque is linear, Therefore, passage of this relationship on the torque can be calculated size. Speed is taken for the other way, because came out from the sensor signal, Each expressed a cycle from an addendum to another addendum to the time comes, So through this relationship can be obtained directly shaft speed.In this paper the signal used in the communications serial communications, mainly to the acquisition of sensor signals into digital signals and transmit them to the microcontroller, SCM simple signal processing, through the serial signal transmission-level conversion to the computer, by computer will be responsible for signal processing preservation, and in accordance with the requirements of the curve corresponding paint, to the cycloidal gear reducer for analysis.This paper carefully analyzing the cycloidal gear reducer and the principle of force and repeated study of the system's overall structure, To improve the accuracy of testing, we design a synchronous circuit. In the test system software, we developed a simple flexible and able to complete the test system software. After repeated experiments show that the testing system to the test and achieved the purpose of testing.