本文探討了悬挂犁縱垂面工作稳定性的評定标准、影响因素和設計中应注意的問題。文中指出,評定耕深稳定性合适的标准是式中。 n——耕深稳定性的儲备系数,β——犁的牽引綫法向角,α’——犁的阻力綫法向角;Q_N——限深輪支反力,Q_N=Qcosθ;P_X——犁的水平牽引阻力。这种評定标准的优点是:对不同耕幅、不同耕作此阻、不同总体布置的犁都能适用,而且在試驗中較易測得这些数据。通过設計和試驗分析,作者指出,影响耕深稳定性的主要因素是土壤物理机械性质的变化,只有在少数地表不平度較大的丘陵地才是对地的仿形性。作者認为,为保証稳定性,在設計中,必須 This article discusses the evaluation standards, influencing factors and problems that should be noticed in the design of the stability of suspension plow vertical homework. The article pointed out that the evaluation of the appropriate standard of deep stability is formula. n - reserve coefficient of plow stability, β - normal angle of the pull line of the plow, α ’- normal angle of the resistance line of the plow, Q_N - reaction force of the deep wheel, Q_N = Qcosθ, P_X - plow horizontal traction resistance. The advantage of this assessment is that plows can be used for different tillage, different tillage and different overall arrangements, and are easier to measure in the test. Through the design and experimental analysis, the author points out that the main factor affecting the stability of plow depth is the change of the physical and mechanical properties of the soil. Only in a few hilly areas with large surface irregularities is the geomorphism to the ground. The author believes that in order to ensure the stability, in the design, must