CN102345697A

CN102345697A - Cage-type spring

Info

Publication number: CN102345697A
Application number: CN2011102860456A
Authority: CN
Inventors: 贺智挺
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-09-24
Filing date: 2011-09-24
Publication date: 2012-02-08

Abstract

The novel invention discloses a cage-type spring which has the advantages of simple structure, small volume, high carrying capacity and low manufacturing cost. The cage-type spring is composed of one or multiple sections of spring groups, wherein each spring group comprises multiple elastic sheets which are arranged surrounding a centre line; and the two ends of each elastic sheet are respectively fixed on an upper connecting ring and a low connecting ring, and the elastic sheets are bent inward or outward relative to the centre line. The spring provided by the invention is composed of one or multiple sections of spring groups, and each spring group is composed of the multiple elastic sheets which surround the centre line and are in cage-shaped arrangement, when the spring is subjected to the pressure, the elastic sheets are bent inwards or outwards under the action of pressure, the multiple elastic sheets share the pressure together and are uniformly stressed, and the compaction state is stable. Compared with the traditional single spring wire spiral spring, the cage-type spring provided by the invention has the following advantages: under the conditions that the cage-type spring is made of a same material and the diameter of a spring wire is equal to that of each elastic sheet, the load born by the cage-type spring composed of eight elastic sheets is eight times that of the spiral spring, the volume of the cage-type spring is smaller and the cage-type spring is more simple and more convenient in use.

Description

A kind of cage spring

Technical field

The present invention relates to a kind of spring.

Background technique

Spring is a kind of mechanical parts that utilize elasticity to come work, impacts or shakes, stores up the size of energy, measuring force etc. in order to motion, the mitigation of control parts, is widely used in machine, the instrument.The kind complicacy of spring is various, and by stressed character, spring can be divided into extension spring, pressure spring, torsion spring and flexural spring.Wherein the most frequently used pressure spring, pressure spring are the helical springs that bears to pressure, and it is circular mostly its used material section is; Also useful rectangle and multiply steel are entangled and are rolled; Pitches such as spring is generally, the shape of pressure spring has: cylindrical, conical, camber and middle concave and a spot of non-circular etc. have certain clearance between the circle of pressure spring and the circle; Spring contraction deformation when receiving external load stores energy of deformation.When needs promote its bearing capacity; Can be through increasing size or its spring filament diameter of spring; When its volume size is received when restriction, need process and need carry out good heat treatment and improve its performance through adopting limit of elasticity material good, that fatigue limit is done, impact toughness is good.These material prices are expensive, production process is loaded down with trivial details, it is high that manufacturing mechanism is required, and improved its cost of production widely.

Summary of the invention

Problem to be solved by this invention is, to the deficiency of above-mentioned technology, designs a kind of simple in structure, volume is little, bearing capacity is high, cost of production is low cage spring.

The technological scheme that the present invention is adopted for its problem of solution is:

A kind of cage spring, this cage spring is made up of a joint or more piece cluster spring, and said cluster spring comprises many shell fragments around the center line setting, and the two ends of shell fragment are separately fixed on the upper and lower connecting ring, and said shell fragment is inside or outwardly-bent towards center line.

In the present invention, said many shell fragments distribute around center line equably.

In the present invention, said more piece cluster spring is from top to bottom arranged along center line.

In the present invention, said shell fragment is processed by glass fibre is one-body molded.

In the present invention, said glass fiber resin is made up of glass fibre and resin, and the weight percentage of glass fibre and resin is respectively 60%-80% and 40%-20%.

The invention has the beneficial effects as follows: spring of the present invention is made up of a joint or more piece cluster spring, and cluster spring constitutes around center line setting and the shell fragment of forming the cage shape by many, when spring bears pressure; Outwards or curve inwardly, born jointly by many shell fragments by pressure under the effect of pressure for shell fragment, stressed evenly; Impaction state is stable, compares with traditional single spring silk helical spring, is adopting same material; Under the situation of spring filament diameter and shell fragment equal diameters; The load that the cage spring of being made up of eight shell fragments can bear is helical spring octuple, and its volume is littler, uses easier.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the present invention is described further:

Fig. 1 is embodiment one a structural representation;

Fig. 2 is embodiment one a plan view;

Fig. 3 is embodiment one a plan view;

Fig. 4 is embodiment two a structural representation;

Fig. 5 is embodiment two a plan view;

Fig. 6 is embodiment three a structural representation;

Fig. 7 is embodiment three a plan view;

Fig. 8 is embodiment four a structural representation;

Fig. 9 is embodiment four a plan view.

Embodiment

Below be specific embodiment of the present invention, technological scheme of the present invention is done further to describe, but the present invention be not limited to these embodiments.

Embodiment one: referring to figs. 1 through Fig. 3; A kind of simple in structure, volume is little, bearing capacity is high, cost of production is low cage spring provided by the present invention, this cage spring is made up of a joint cluster spring 1, and said cluster spring 1 comprises eight shell fragments 2 that are provided with around center line; This eight shell fragments 2 distribute around center line equably; So that it is stressed balanced more, the two ends of shell fragment 2 are separately fixed on the upper and lower connecting

ring

3,4, and said shell fragment 2 is outwardly-bent towards center line.The cage spring of this instance is made up of a joint cluster spring 1, and when spring bore pressure, shell fragment 2 was outwardly-bent under the effect of pressure; Pressure is born by eight shell fragments 2 jointly, compares with traditional single spring silk helical spring, is adopting same material; Under the situation of spring filament diameter and shell fragment 2 equal diameters; The load that present embodiment can bear is helical spring octuple, and its volume is littler, uses easier.

Embodiment two: with reference to Fig. 4, Fig. 5, present embodiment is basic identical with embodiment one structure and principle, and different place is: said shell fragment 2 curves inwardly towards center line.Promptly when spring bore pressure, shell fragment 2 curved inwardly under the effect of pressure, thereby reduced the volume behind the camber of spring, made its application area wider.

Embodiment three: with reference to Fig. 6, Fig. 7; Present embodiment is basic identical with embodiment one structure and principle; Different place is: go up connecting ring 3 or when connecting ring 4 is enough little or infinitely small down when said; The end of all shell fragments 2 directly links together, thereby promptly the one or both ends of spring are the conical volute spring that forms.

Embodiment three: with reference to Fig. 8, Fig. 9, present embodiment is basic identical with embodiment one structure and principle, and different place is: in the present embodiment, cage spring is made up of four joint cluster spring 1, and every joint cluster spring 1 is from top to bottom arranged along center line.Certainly here, said center line not only can be straight line, also can be space curve, has identical technique effect, is its equal technological scheme.

The quantity of quantity, size, length, tortuosity and the cluster spring 1 of the present invention through regulating shell fragment 2, but the just volume of spring adjustment, bearing capacity etc.

In the present invention, during spring stress, therefore shell fragment 2 stressed bendings require shell fragment 2 to adopt the material that limit of elasticity is good, fatigue limit is done, impact toughness is good, for example materials such as carbon spring steel, alloy spring steel, rustproof spring steel and Cuprum alloy, nickel alloy.Yet the two ends of shell fragment 2 are separately fixed on the upper and lower connecting

ring

3,4; When stressed, shell fragment 2 situation that stress is concentrated occurs easily with the joint of upper and lower connecting

ring

3,4, therefore requires switching performance requirement here high; And upper and lower connecting

ring

3,4 receives the acting in conjunction power of a plurality of shell fragments 2; In order to make each shell fragment 2 stressed even, it is firmly firm that upper and lower connecting

ring

3,4 needs, not yielding and fracture.Adopt materials such as traditional carbon spring steel, alloy spring steel, rustproof spring steel and Cuprum alloy, nickel alloy under existing processing technique, be difficult to the requirement that reaches above-mentioned.

Hence one can see that, and the structure of cage spring and stressing conditions and traditional helical spring are different fully, therefore, can't adopt traditional material and processing method to produce.

In order to make cage spring reach good performance, said shell fragment 2 is processed by glass fiber resin is one-body molded, and said glass fiber resin is made up of glass fibre and resin, and the weight percentage of glass fibre and resin is respectively 60%-80% and 40%-20%.Said upper and lower connecting

ring

3,4 also can be processed by glass fiber resin, is perhaps processed by materials such as carbon spring steel, alloy spring steel, rustproof spring steel and Cuprum alloy, nickel alloys, has identical technique effect.Shell fragment 2 connects between each parts closely with upper and lower connecting ring 3, can be connected through modes such as grafting between 4 like this, and is firmly firm.And the intensity of glass fiber resin is high, good toughness, has higher fatigue strength, is not easy distortion, also have good insulation performance and antirust effect, and volume is little, weight is lighter, is applicable to fields such as mattress, sofa.

Certainly, the present invention is except above-mentioned mode of execution, and other equivalent technical solutions also should be within its protection domain.

Claims

1. cage spring; It is characterized in that: this cage spring is made up of a joint or more piece cluster spring (1); Said cluster spring (1) comprises many shell fragments (2) around the center line setting; The two ends of shell fragment (2) are separately fixed on the upper and lower connecting ring (3,4), and said shell fragment (2) is inside or outwardly-bent towards center line.

2. a kind of cage spring according to claim 1 is characterized in that: said many shell fragments (2) distribute around center line equably.

3. a kind of cage spring according to claim 1 is characterized in that: said more piece cluster spring (1) is from top to bottom arranged along center line.

4. a kind of cage spring according to claim 1 is characterized in that: said shell fragment (2) is processed by glass fiber resin is one-body molded.

5. a kind of cage spring according to claim 4 is characterized in that: said glass fiber resin is made up of glass fibre and resin, and the weight percentage of glass fibre and resin is respectively 60%-80% and 40%-20%.