Fatigue test bench of maize header

[0016] figure 1 , figure 2 and image 3 Show the specific embodiment of corn header fatigue test bench of the present invention:

[0017] combine figure 1 , figure 2 and image 3 , the corn header fatigue test bench includes computer control system 1, the header fatigue test bench frame, and the nylon rod system for simulating corn stalks. The whole machine of the computer control system 1 adopts computer data acquisition and control, which has the advantages of accurate data acquisition and reliable control, and immediately controls the shutdown of the header when it is found to be faulty.

[0018] The header fatigue test bench frame includes a fixed bracket 3, on which a harvesting platform 2 is fixed, on which a motor 5 is installed, and the motor 5 is connected to the harvesting platform 2 through a transmission belt 6, and a threaded top is installed on the fixed bracket 3 Thread A11 and threaded top wire B12. A fixed guide tube A7 is installed on the threaded top screw A11. A spring A13 and a nylon rod A9 are arranged inside the fixed guide tube A7. A counting sensor 4 is installed inside the fixed guide tube A7. The counting sensor 4 passes the data. The line is connected with the computer control system 1, and a fixed guide tube B8 is installed on the threaded top screw B12, and a spring B14 and a nylon rod B10 are arranged inside the fixed guide tube B8.

[0019] The fixed bracket 3 is manufactured by channel steel welding, which has the characteristics of stability and vibration resistance. The corn harvester fatigue test bench uses a speed-regulating motor and a planetary reducer as the power of the fatigue test machine to provide power for the corn harvester 2 under test. Both nylon rod A9 and nylon rod B10 are made of PA66 plastic material with a diameter of 30mm, which has the advantages of excellent wear resistance, self-lubricating property and high mechanical strength. The nylon rod A9 forms an included angle of 75.2° with the knife roller of the harvesting platform 2 to control the minimum amount of wear. The pressure of spring A13 and spring B14 can be adjusted to change the force between the knife roller and nylon rod A9 and nylon rod B10, simulating the force closest to the corn stalk. The corn harvester fatigue test bench adopts one-button start, and the speed of the simulated harvester is adjusted by the speed regulating motor.

[0020] The corn harvester fatigue test bench uses nylon rods A9 and nylon rods B10 to simulate the harvesting of corn stalks by the harvester 2 of the corn harvester, so as to measure the fatigue performance of the corn harvester header. The corn header fatigue test can be performed at any time and in any environment, saving test costs, saving labor, and improving product quality