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牵引五铧犁牵引装置的前端装有销钉摩擦复合式安全装置。牵引环连接在拉块上,拉块装在主拉杆前端,用两个螺栓压紧,并用安全销把拉块和主拉杆连接起来。当工作阻力超过了压紧螺栓造成的摩擦力和安全销的剪切强度时,销子将被剪断,拉块将与主拉杆脱开,使拖拉机和犁离开,这样就保护了犁的安全。有些驾驶员不了解安全装置的作用,任意加大安全销的直径,改变安全销的材质,甚至用气门杆代替安全销。这样就使安全装置失去了作用。当工作阻力大大超过规定值时,拖拉机仍牵引着机引犁强行耕作,致使犁架、犁体等严重变形,使犁的技术状态变坏,耕作质量下降,油耗增加。因此,在培训驾驶员
Traction five plow traction device equipped with front-end pin friction composite safety device. Traction ring connected to the pull block, the pull block installed in the front end of the main rod, with two bolts pressed together with the safety pin and pull the main rod link. When the working resistance exceeds the friction caused by the compression bolt and the shear strength of the safety pin, the pin will be cut off and the pull block will be disconnected from the main pull rod to separate the tractor and the plow, thus protecting the safety of the plow. Some drivers do not understand the role of safety devices, arbitrarily increase the diameter of the safety pin, change the safety pin material, and even replace the safety pin with a valve rod. This disables the safety device. When the working resistance greatly exceeds the stipulated value, the tractor still drives the plow to forcibly plow the plow and plow body, causing serious deformation of the plow. The technical condition of the plow deteriorates, and the quality of farming decreases and the fuel consumption increases. Therefore, training the driver