裝載機工作裝置油缸的作用力有主動力和被動力之分，主動力就是保證裝載機正常作業(yè)情況下，油缸推動工作機構(gòu)運動的作用力，其最大值決定于工作裝置參數(shù)及掘起力，被動力就是當(dāng)油缸閉鎖情況下，裝載機鏟掘時作用于油缸上的力，它的最大值取決于液壓系統(tǒng)的限壓閥的壓力及活塞的作用面積。
Shandong loader work force cylinder unit with active power and the power of the points, the active force is to ensure that under normal operating circumstances loaders, tanks pushing force working body movement, and its maximum value

depends on the working device parameters and breakout force role of the area when the pressure limit is the power cylinder lock case, when the force acting on the shovel loader on a cylinder, its value depends on the hydraulic system

pressure valve and the piston.

當(dāng)裝載機轉(zhuǎn)斗油缸閉鎖，靠提升動臂進行掘起或舉升時，動臂油缸產(chǎn)生主動力，其大小應(yīng)能克服最大掘起力時所產(chǎn)生的總力矩；此時的轉(zhuǎn)斗油缸大端產(chǎn)生支承力，其油壓應(yīng)小于液壓系統(tǒng)中限壓閥的壓力；當(dāng)山東裝載機動臂油缸閉鎖進行轉(zhuǎn)斗時，轉(zhuǎn)斗油缸主動；當(dāng)鏟斗下翻進行強制入土?xí)r，轉(zhuǎn)斗油缸小腔產(chǎn)生主動力，動臂油缸小腔為支承力。
When Shandong loader bucket cylinder lock, conducted by upgrading rise or lift boom, boom cylinder produces the active force, the total moment of its size should be able to overcome the maximum breakout force generated; this time bucket cylinder produce big end bearing force, the oil pressure should be less than the pressure in the hydraulic system pressure limiting valve; when Shandong loader boom cylinder lock carried the bucket, bucket cylinder initiative; when

forced to turn buried under the bucket, bucket cylinder small cavities produce the active force, the small chamber of the boom cylinder supporting force.