To verify the accuracy of the model, the simulation results are compared with the test data in the time domain and frequency domain.Figure 1 shows the time domain data of power take-off drive train test and simulation. From the simulation results, it can be seen that the lateral acceleration...
1. Model simulation During the model dynamics simulation, the input parameters of the simulation model are determined according to the actual situation, as shown in Table 1. The calculation results of tractor gear mesh stiffness are shown in Figure 1. The meshing damping of tractor gears is proportional to...
The parallel axis finishing process is used to carry out theoretical, simulation and experimental research on the finishing scheme of spiral bevel gear. The following conclusions are drawn: (1) According to the mathematical model of finishing process, the cutting speed of abrasive is positively related to the workpiece radius,...
Taking LX2204 tractor as an example, the structure diagram of the transmission system of the whole machine is shown in Figure 1. In the field rotary tillage operation, part of the power output by the engine drives the wheels through the clutch, gearbox and front and rear drive axles;...
Rotary tillage operation is a typical field operation condition of tractors. During operation, 50% – 75% of the engine power is transmitted to the rotary tillage machine through the PTO shaft. The power output transmission system is the core component system for power transmission. In the face of complex...
1. Experimental materials The experimental material is SAEJ403 carbon steel. The chemical composition of SAE J403 carbon steel is shown in the table. Quench SAE J403 carbon steel gear, and the quenching process mainly includes eddy current quenching, cooling and 150 ℃ tempering; After that, the un quenched carbon...
The research on vibration reduction and noise reduction of aviation spiral bevel gear transmission has always been the focus of the industry. Due to the high power density requirements of aviation spiral bevel gears, the thin spoke structure is widely used. In order to reduce the weight of the...
In order to qualitatively study the influence of meshing impact time on the vibration characteristics of helical gear transmission, the meshing impact time (5.6% Tz) of the input stage tooth pair of the electric vehicle reducer in this paper is widened to both sides (4% Tz, 8% Tz), three...
In order to study the vibration characteristics of the system under separate excitation of meshing impact, the meshing impact curve obtained is input into the dynamic equations of single-stage helical gear transmission, and the vibration response of single-stage helical gear transmission system under three working conditions of input torque...
Input the obtained time-varying meshing stiffness curve into the dynamic equations, obtain the vibration response of single-stage helical gear transmission under three working conditions of input torque of 80N · m, 100N · m and 120N · m, and draw the vibration speed diagram as shown in Figure 1....