CN2323191Y

CN2323191Y - Gradual section change spring wire made compression spring

Info

Publication number: CN2323191Y
Application number: CN 97227329
Authority: CN
Inventors: 张海滨
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-09-25
Filing date: 1997-09-25
Publication date: 1999-06-09
Anticipated expiration: 2007-09-25

Abstract

The utility model relates to a gradual section change spring wire made compression spring. The inner and outer diameters of the spring are equal. Each section of the metal wires made into the spring has different cross-sectional areas. The variation range of the elastic force is directly proportional to the variation range of the cross-sectional area of the spring wire. The spring has integral performances of a plurality of ordinary springs with different elastic forces, which is adaptable to a wider vibration intensity and applicable to suspension of vehicles in various mechanism devices, counter-recoil installation of automatic firearms, etc.

Description

The pressure spring that the spring thread of sectional area gradual change is manufactured

The utility model relates to a kind of pressure spring, particularly the pressure spring manufactured of the spring thread of sectional area gradual change.

Present widely used spring all adopts the wire coiling of same diameter, each of spring section has identical elasticity recovery, accommodation to pressure is narrower, though can be improved by the measure that changes part pitch, but bad because of the restriction effect that is subjected to self structure, and the strong point of hard and soft two aspects is difficult to take into account, and have to be aided with oil gear and give to remedy, so just, make equipment comparatively complicated, cost is higher.In order to address this problem, people have done multiple effort, the patent that one key name is called " Spring capable of diameter varying " is disclosed for No. 952421186 as Chinese patent, introduced a kind of spring made from the wire of different cross section diameter, can take into account the requirement of different damping intensity, its small diameter part branch has better elastic when weak vibration, its particle size part presents stronger back stretch when strong vibration.The deficiency that this structure exists is to be that the diameter wiry of making spring is continuous variation, just have nothing in common with each other, the ocsillator strenght of bearing when spring is bigger like this, when just partly realizing damping by particle size, the small diameter part branch is very easily collapsed by pressure, and spring can not be resetted.Therefore the reliability aspect of this arrangement works exists problem.

Task of the present utility model is: overcome the deficiencies in the prior art, design a kind of spring that adapts to the pressure range broad, make it can both have the favorable damping effect in bigger ocsillator strenght excursion.

Task of the present utility model realizes as follows: the spring thread material that adopts sectional area to change is gradually made the spring that inside and outside footpath equates.

The utility model is owing to the spring thread that adopts sectional area to change is gradually made, therefore has the performance that many different common springs of elastic force possess, the ocsillator strenght that can adapt to broad, application surface is very wide, owing to adopt the interior external diameter homogeneous phase of each circle of spring of structure fabrication of the present utility model etc., therefore mutual plane contact when bearing various ocsillator strenghts especially pressurized is big, stressed evenly; Spring discharged the energy that is absorbed by reverse sequence when pressure was cancelled in restorable process, and the release of energy is descending progressively to be carried out, and spring restores the back end-of-job, can realize independent incabloc function; Therefore, the Applicable scope of spring is wider, can be used as the suspension arrangement of vehicle, the counterrecoil mechanism of automatic firearms and the spring assembly in all kinds of machinery.

Fig. 1 is a front section view of the present utility model;

Fig. 2 is second kind of embodiment view of the present utility model.

Most preferred embodiment of the present utility model as Fig. 1, adopts 1 transformation of the way of standard spring thread, the spring thread width, and just a is to constant, and b mills out the plane to both sides with length direction, makes b＞b ₁＞b ₂B _n

Also can adopt rectangle spring thread 1 to make, as shown in Figure 2, not increase a to size, just a=a ₁=a ₂=... a _nSituation under, only reduce b to size, b＞b ₁＞b ₂＞... b _n, can satisfy the bigger requirement of relative adaptation pressure range.

Claims

1, the pressure spring manufactured of a kind of spring thread of sectional area gradual change is characterized in that: the inside and outside footpath of spring equates that the spring thread material of employing has the sectional area of gradual change.