1 thought on “What are the basic geometric parameters of cylindrical spiral spring”

  1. I am the manager Li of the spring machine. I have been engaged in the CNC spring machine industry 150 2403 9319. For cylindrical spiral springs are a standard compressed spring, their basic geometric parameters are:
    . Physical parameters:
    , D (spring wire diameter): the diameter of the spring line;
    2. S (Maximum diameter of the heart shaft): The maximum diameter of the spring shaft in the industrial application is usually ± 2%;
    , di (inner diameter): that is, the inner diameter of the spring ring, usually tolerance is tolerance is usually tolerance is tolerance is usually tolerance is tolerance. ± 2%;
    4, de (outer diameter): that is, the outer diameter of the spring ring, de = di 2D, usually tolerance is ± 2%;
    5, H (minimum pore diameter): The spring is normal The minimum space diameter required in the working state is usually ± 2%;
    6, P (spacing): that is, the axial distance of the central line of the two adjacent valid circles of the spiral spring, usually the tolerance is ± 2 %;
    7, LC (pressure and length): The theoretical height of the compressed spring when pressing to the coils of each circle, you can refer to the upper figure of the upper right, usually the tolerance is ± 2%;
    , ln (allowed length to allow length ): The allowable length of the spring at the maximum load (within the allowable deformation range), Ln = LC SA, where the SA system is allowed to take the sum of small distances between the valid circles.
    9, L0 (natural length): After the spring is pressed and once, the length of the natural extension is usually ± 2%;
    10, the number of circles: the total number of the spring (as shown above The number of circles in the middle spring is 6), and the valid number of circles is to minus the number of inheritance circles at both ends.
    11, R (spring stiffness): that is, the load change of the spring when the spring deforms. Such as 1dan/mm = 10n/mm (Newton/mm), usually tolerance is ± 2%;
    12, l1

Leave a Comment