CN205715395U - Guide accessible formula disk spring - Google Patents

Abstract

The utility model discloses a kind of guiding and can contact formula disk spring, the internal diameter of spring body and/or outer radius rounding, the diameter length of fillet is equal to the thickness of spring body；The utility model, to rounding at spring inside diameter during guiding disk spring in using, in compression process, internal diameter will keep constant, and the stress near contact point is close to zero simultaneously, thus avoid spring to wear and tear at high tensile stress, it is substantially reduced the sensitiveness to wear-out defect for the disk spring, thus reaches the stable use of disk spring, reduce the cracking rate of disk spring, extend service life, improve safety in utilization；To disk spring outer radius rounding when guiding outside using, external diameter will keep constant, and the stress near contact point, close to zero, reduces the abrasion to disk spring for the outer guide cylinder, improves the stability of disk spring, and service life.

Description

Guide accessible formula disk spring

Technical field

The utility model relates to a kind of disk spring hanging installation, particularly relates to a kind of guiding accessible formula dish bullet Spring.

Background technology

In prior art, its cross section is rectangle, sees Fig. 1.It is generally matched in clearance, dish between disk spring and guide Spring can not be with guide contacts.When disk spring is by interior guiding work, the stress at II point in Fig. 1 should for maximum Power.If disk spring and interior guide post contact wear, abration position will be at II point, under maximum tensional stress effect, and abrasion Defect will progressively be expanded, and cause disk spring to rupture.Being at the minimum of disk spring diameter of bore at II point, its value determines dish The internal diameter of spring, in compression process, will be outside through Direction distortion at II point, therefore its internal diameter will increase；In compression process, I To deform to central axis direction at Dian, therefore its diameter will diminish；In compression process, at the midpoint of I point and II point, its diameter Size is almost unchanged；During whereas if disk spring is by outer guiding work, although only having less at the IV point in Fig. 1 Tensile stress, if disk spring and outer guide sleeve contact wear, abration position also will can affect the work of disk spring at IV point Make efficiency and service life；Being the maximum of the outer bore dia of disk spring at IV point, its value determines the external diameter of disk spring, In compression process, at IV point, radially inward is deformed, therefore its external diameter will reduce；In compression process, will outward at III point To deformation, therefore its diameter will become big；In compression process, in the midpoint of III point and IV, its diameter dimension is almost unchanged；With Reason, disk spring uses interior guiding and outer guiding simultaneously, and at II, tensile stress is maximum, all can rub with guide at II and IV Wipe, affect the service life of disk spring.

Utility model content

In view of this, technical problem to be solved in the utility model is: provide a kind of disk-shape spring structure, makes dish bullet Spring contacts with interior guiding at low stress, and the guiding that internal diameter and/or outside dimension change hardly in compression process can contact Formula disk spring.

In order to achieve the above object, the utility model adopts the following technical scheme that and realizes:

A kind of guiding can contact formula disk spring, including spring body, the internal diameter of spring body and/or outer radius rounding Angle, the diameter length of described fillet is equal to the thickness of spring body.

As preferably, the inner radius rounding of described spring body, in the guiding of inner radius fillet circular arc and disk spring The side first half is tangential at the inner-diameter end spring body thickness 1/2nd of spring body.

As preferably, the outer radius rounding of described spring body, outside outer radius fillet circular arc is with the guiding of disk spring Side lower half is tangential at the external diameter end spring body thickness 1/2nd of spring body.

As preferably, the inner radius rounding of described spring body, in the guiding of inner radius fillet circular arc and disk spring The side first half is tangential at the inner-diameter end spring body thickness 1/2nd of spring body；The outer radius of described spring body is fallen Fillet, outer radius fillet circular arc guides, with disk spring, the external diameter end spring body that lateral surface lower half is tangential on spring body At thickness 1/2nd.

As shown from the above technical solution, the beneficial effects of the utility model are:

Compared to existing technology, to rounding at spring inside diameter during guiding disk spring in using, in compression process, internal diameter To keep constant, the stress near contact point is close to zero simultaneously, thus avoids spring to wear and tear at high tensile stress, is substantially reduced The sensitiveness to wear-out defect for the disk spring, thus reach the stable use of disk spring, and reduce the cracking of disk spring Rate, extends the service life of disk spring, improves safety in utilization；To disk spring outer radius rounding when guiding outside using Angle, external diameter will keep constant, and the stress near contact point is close to zero, thus reduces the mill to disk spring for the outer guide cylinder Damage, improve the stability of disk spring；Guide in using simultaneously and use disk spring under outer guiding state, to disk spring Internal-and external diameter respectively rounding, improve stability and the service life of disk spring, and security be greatly improved.

Brief description

Fig. 1 is the cross-sectional view of existing disk spring；

Fig. 2 is inner radius and the disk spring cross-sectional view of outer radius rounding respectively；

Fig. 3 is the disk spring cross-sectional view of inner radius rounding；

Fig. 4 is the disk spring cross-sectional view of outer radius rounding respectively.

Detailed description of the invention

In order to make those skilled in the art can be further understood that feature of the present utility model and technology contents, refer to Lower about detailed description of the present utility model and accompanying drawing.

Refer to a kind of guiding of Fig. 2 and can contact formula disk spring, the internal diameter of spring body 1 and outer radius rounding, described The diameter length of fillet is equal to the thickness t of disk spring body 1；Inner radius fillet circular arc C and the guiding medial surface of disk spring First half D is tangential on A (the i.e. inner-diameter end of spring body thickness at the inner-diameter end spring body thickness 1/2nd of spring body 1 Midpoint), the point that namely disk spring contacts with guide post, this contact point guide end in spring body 1 constitutes a circle；Outward Fillet circular arc C at footpath ' to be tangential on the external diameter end spring body of spring body 1 thick with the guiding lateral surface lower half D ' of disk spring B (i.e. the midpoint of spring body thickness external diameter end) at degree 1/2nd, the point that namely disk spring contacts with outer guide cylinder, this Contact point constitutes a circle at the outer guide end of spring body 1.

As it is shown on figure 3, inside the guiding of the inner radius rounding of spring body 1, inner radius fillet circular arc C and disk spring Face first half D is tangential on A (the i.e. inner-diameter end of spring body thickness at the inner-diameter end spring body thickness 1/2nd of spring body Midpoint) point that namely disk spring contacts with guide post, this contact point guide end in spring body 1 constitutes a circle；.

As shown in Figure 4, the outer radius rounding of spring body 1, outer radius fillet circular arc C ' with the guiding of disk spring outside Side lower half D ' is tangential on B (i.e. spring body thickness external diameter at the external diameter end spring body thickness 1/2nd of spring body The midpoint of end), the point that namely disk spring contacts with outer guide cylinder, this contact point constitutes one at the outer guide end of spring body 1 Individual circle.

But the foregoing is only preferable possible embodiments of the present utility model, and be not used to limit to patent of the present utility model Scope, therefore the equivalent structure change that all utilization the utility model specifications and accompanying drawing content are made, be all in like manner included in this practicality In novel scope.

Claims (4)

1. guide an accessible formula disk spring, including spring body, it is characterised in that: the internal diameter of spring body and/or outer Rounding at footpath, the diameter length of described fillet is equal to the thickness of spring body.

2. as claimed in claim 1 guiding can contact formula disk spring, it is characterised in that: the inner radius of described spring body is fallen Fillet, inner radius fillet circular arc guides, with disk spring, the inner-diameter end spring body that the medial surface first half is tangential on spring body At thickness 1/2nd.

3. as claimed in claim 1 guiding can contact formula disk spring, it is characterised in that: the outer radius of described spring body is fallen Fillet, outer radius fillet circular arc guides, with disk spring, the external diameter end spring body that lateral surface lower half is tangential on spring body At thickness 1/2nd.

4. as claimed in claim 1 guiding can contact formula disk spring, it is characterised in that: the inner radius of described spring body is fallen Fillet, inner radius fillet circular arc guides, with disk spring, the inner-diameter end spring body that the medial surface first half is tangential on spring body At thickness 1/2nd；Outside the guiding of the outer radius rounding of described spring body, outer radius fillet circular arc and disk spring Lower half, face is tangential at the external diameter end spring body thickness 1/2nd of spring body.