CN202883862U

CN202883862U - Torsion spring

Info

Publication number: CN202883862U
Application number: CN 201220459693
Authority: CN
Inventors: 邵乃祥
Original assignee: HANGZHOU TONGYONG SPRING CO Ltd
Current assignee: HANGZHOU TONGYONG SPRING CO Ltd
Priority date: 2012-09-11
Filing date: 2012-09-11
Publication date: 2013-04-17
Anticipated expiration: 2022-09-11

Abstract

The utility model relates to a torsion spring which comprises spring bodies, torsion input ends and torsion output ends. The torsion input ends and the torsion output ends are arranged at two ends of the spring bodies. Each torsion spring comprises two symmetrical spring bodies. The torsion output ends are both arranged at one adjacent ends of the symmetrical spring bodies. The two torsion output ends of the two symmetrical spring bodies are fixedly connected. The deflective force can be mutually counteracted through the symmetrical spring bodies and the torsion input ends arranged at two ends of the spring bodies and the torsion output ends arranged at the two ends of the spring bodies so as to realize the fact that the deflective force can not generate when the torsion is increased in double at the same time. Balance property is better and using effects are better.

Description

Torque spring

Technical field

The utility model relates to a kind of spring, especially a kind of torque spring.

Background technique

Spring is a kind of mechanical parts that utilize elasticity to come work.Generally make with spring steel.Impact or shake, store up the size of energy, measuring force etc. in order to motion, the mitigation of controlling parts, be widely used in machine, the instrument.Spring is an accumulator just, and it has the function of stored energy, but can not discharge energy at leisure, realize that this function of slow release should lean on " spring+big speed ratio mechanism " to realize, is common in mechanical watch.Spring had just been used very early, and the bow in ancient times and crossbow are exactly two kinds of sensu lato springs.By stressed character, spring can be divided into extension spring, Compress Spring, torsion spring and flexural spring, belleville spring, annular spring, leaf spring, helical spring, valute spring and torsion bar spring etc. can be divided into by shape, cold coiling spring and hot coiling spring can be divided into by working process.The common cylinder spring is simple owing to making, and can make various types according to the stand under load situation, and is simple in structure, therefore most widely used.In general the manufactured materials of spring should have high limit of elasticity, fatigue limit, impact toughness and good heat treatment performance etc., and commonly used have carbon spring steel, alloy spring steel, rustproof spring steel and Cuprum alloy, nickel alloy and a rubber etc.The manufacture method of spring has cold coiling method and hot rolling method.The spring thread diameter is less than 8 millimeters the general cold coiling method of using, greater than 8 millimeters use the hot rolling method.Some spring also will be suppressed or shot blast after making, and can improve the bearing capacity of spring.

Torque spring is that a kind of machinery holds the power structure, is mainly used in ballista and other crossbow class standoff weapons ancient times.Torque spring holds power by distortion or the rotation of the elastic material soft to material, that toughness is larger, utilizes lever principle to discharge, and makes to be launched thing and to have certain mechanical energy.The steel manufacturing of the modern multiplex excellent elasticity of torque spring torsion bar, also great changes have taken place for form, and the hairspring of mechanical watch the inside is arranged, and the power spring in the toy gyroscope rifle is arranged, and the torsion bar in tank, the automobile is also arranged.The little torsion of torsion bar volume is large, can't be better as the shock-absorbing instrument of transport facility.But existing torque spring, comprise the spring body and be located at torsion input end and the torsion output terminal at spring body two ends, because torsion input end and torsion output terminal be not at same position, so there is a shortcoming, when being exactly its generation torsion, can produce simultaneously a kind of power of deflection, so that the using effect of torsion spring is bad.

The model utility content

Problem to be solved in the utility model is to improve the problem of the easy generation deflecting force of torque spring in the background technique.

In order to overcome the above problems, the utility model provides a kind of torque spring, comprise the spring body and be located at torsion input end and the torsion output terminal at spring body two ends, described torque spring comprises the spring body of two symmetries, the end that the spring body of described symmetry is adjacent is equipped with the torsion output terminal, and the torsion output terminal of the spring body of described two symmetries is fixedly connected with.

The torsion output terminal of the spring body of described two symmetries is integrated.

The torsion output terminal of the spring body of described two symmetries forms U-shaped.

Torque spring described in the utility model, comprise the spring body and be located at torsion input end and the torsion output terminal at spring body two ends, described torque spring comprises the spring body of two symmetries, the end that the spring body of described symmetry is adjacent is equipped with the torsion output terminal, the torsion output terminal of the spring body of described two symmetries is fixedly connected with, spring body by symmetry and be located at torsion input end and the torsion output terminal at spring body two ends, so that the power of deflection is cancelled out each other, can not produce the power of deflection when realizing the double increasing of torsion, balance quality is better, and the Use Limitation fruit is better.

Description of drawings

Accompanying drawing 1 is the front schematic view of torque spring described in the utility model

Accompanying drawing 2 is side schematic views of torque spring described in the utility model

1, spring body; 12, torsion output terminal; 13, torsion input end.

Embodiment

Below in conjunction with accompanying drawing a kind of torque spring of the utility model is described further.

As shown in Fig. 1, Fig. 2, the torque spring of the present embodiment, comprise spring body 1 and be located at torsion input end 13 and the torsion output terminal 12 at spring body 1 two ends, torque spring comprises the spring body 1 of two symmetries, the torsion output terminal 12 that symmetrical spring body 1 an adjacent end is equipped with the spring body 1 of 12, two symmetries of torsion output terminal is fixedly connected with.Spring body by symmetry and be located at torsion input end and the torsion output terminal at spring body two ends so that the power of deflection is cancelled out each other, can not produce the power of deflection when realizing the double increasing of torsion, balance quality is better, and the Use Limitation fruit is better.

In the present embodiment, the torsion output terminal 12 of the spring body 1 of described two symmetries is integrated.So that the connection of the torsion output terminal of the spring body of two symmetries is more firm, can not throw off, add simultaneously man-hour also convenient, produce machine by spring, set procedure, disposable processing.In the present embodiment, the torsion output terminal 12 of the spring body 1 of described two symmetries forms U-shaped.By forming U-shaped, so that installing with equipment in use more easily, the torsion output terminal is connected.

The utility model is not limited to above embodiment and conversion.

Claims

1. torque spring, comprise spring body (1) and be located at torsion input end (13) and the torsion output terminal (12) at spring body (1) two ends, it is characterized in that: described torque spring comprises the spring body (1) of two symmetries, the adjacent end of spring body (1) of described symmetry is equipped with torsion output terminal (12), and the torsion output terminal (12) of the spring body (1) of described two symmetries is fixedly connected with.

2. a kind of torque spring according to claim 1, it is characterized in that: the torsion output terminal (12) of the spring body (1) of described two symmetries is integrated.

3. a kind of torque spring according to claim 2 is characterized in that: torsion output terminal (12) the formation U-shaped of the spring body (1) of described two symmetries.