Structure Design and Bearing Capacity Analysis for Crawler Chassis of Rice Combine Harvester

Table 4

Design variable and theoretical operating force of the joystick.

No.	The evaluation object	Length of AB 11/mm	Length of BC l2/mm	Length of CD l3/mm	Switch stroke c (mm)	Rotation angle θ/°	Displacement of the rod /mm	Theoretical operating force F/N
1	Unloading clutch operating lever reel operating lever	280	75	400	10	7.66	55	32.0
2	Forward and backward operating lever	450	45	270	20	26.42	182	11.55
3	Shift lever	420	180	680	70	20.00	154	43.93
4	Cutting table integrated joystick	350	65	410	20	23.21	148	21.91
5	Harvesting device joystick	280	95	480	40	18.24	78	39.34
6	Brake lever	220	50	400	10	11.54	55	27.8