CN201513495U

CN201513495U - Rectangular spring

Info

Publication number: CN201513495U
Application number: CN2009202590084U
Authority: CN
Inventors: 段华东; 李冠军
Original assignee: CSR Zhuzhou Electric Locomotive Co Ltd
Current assignee: CRRC Zhuzhou Locomotive Co Ltd
Priority date: 2009-10-28
Filing date: 2009-10-28
Publication date: 2010-06-23
Anticipated expiration: 2019-10-28

Abstract

The utility model provides a rectangular spring which comprises a supporting ring I, a supporting ring II and an effective ring positioned between the supporting ring I and the supporting ring II. Spring rings of the supporting ring I, the supporting ring II and the effective ring are rectangular. In the utility model, the rectangular spring rings can adapt to a special mounting space through reasonably designing the effective ring and the supporting ring; the longitudinal and transverse stiffness of the spring can be adjusted and controlled so as to improve the influence of a spring structure to mechanical property; and balanced stress and hard deformation can be ensured during the operation. The rectangular spring has a simple structure and can achieve high application reliability and high safety of the spring through a special structure.

Description

The rectangle spring

Technical field:

The utility model relates to spring damper, relates in particular to a kind of helical compression rectangle spring of vehicle.

Background technique

The helical compression steel spring is vehicle resilient suspension parts commonly used, main buffering and the damping effect of rising.

Existing vehicle spiral compression spring mainly is a coil spring, and this spring structure is simple, and sane linear rigidity and bigger natural bow can be provided.But be based on the particular design of pressure spring on vehicle, the purposes of coil spring structure is limited.The first, its vertical cross stiffness equates, does not adapt to the design that characteristic needs in length and breadth change; The second, coil spring does not adapt to special installing space; Three, coil spring is easy to generate adverse effects such as vibration because of its spring coil is circular after the installation.

The model utility content

The utility model is based on satisfying special installing space, optimize the vertical cross stiffness of spring and solve existing coil spring the safety issue that the back produces vibration is installed, a kind of rectangle spring is proposed, to satisfy special spring requirements of installation space, and can improve the dynamic performance of spring suspension, have economic and social benefit.

The concrete technological scheme that the utility model is taked is, a kind of rectangle spring comprises bracing ring one, bracing ring two and the coil between bracing ring one and bracing ring two, and the spring coil of described bracing ring one, bracing ring two and coil is a rectangular shape.

The spring coil number of total coils of described bracing ring one and bracing ring two is 1.5～1.8 circles, and its end polishes back thickness greater than 3mm and less than 1/4 of spring footpath.

Simultaneously, described coil pitch such as can be or switches political loyalty apart from design, and it is circular or square etc. that described spring bar cross section can be.

The spring coil of rectangle spring described in the utility model is a rectangular shape.The rectangle spring performance line of pitches such as coil is linear.Wherein coil is the camber of spring body, and the bracing ring one and the bracing ring two that equate with the coil two ends and the number of turns tight and that polish play a supportive role, and do not participate in distortion during work.The planeness of bracing ring one and bracing ring two supporting planes requires high, and error is controlled between 0.4～0.6mm; And supporting plane must be perpendicular to axle of spring.In addition, the rectangle active spring coils distance of also can selecting to switch political loyalty, promptly the spring performance line can be non-linear.

The utility model makes the rectangle spring can adapt to special installing space by above-mentioned appropriate design to coil and bracing ring; The vertical cross stiffness of energy adjustment and control spring improves the influence of spring structure to mechanical property; Producing balanced forces and not yielding in the time of can guaranteeing work; Described rectangle spring structure is simple, can realize high reliability and the high security that spring is used because of its special construction.

Description of drawings

Fig. 1 is a rectangle spring 3 dimensional drawing among the embodiment 1;

Fig. 2 is the plan view of rectangle spring among the embodiment 1;

Fig. 3 is the plan view of rectangle spring among the embodiment 1;

Fig. 4 is the performance diagram of embodiment's 1 medium knot apart from the rectangle spring;

Fig. 5 switches political loyalty among the embodiment 2 apart from the performance diagram of rectangle spring;

In above-mentioned accompanying drawing:

1--bracing ring one 2--coil 3--bracing ring two

The vertical P-load of the horizontal Z--of the vertical Y--of X--f-amount of deflection

Embodiment

Embodiment 1:

As Figure 1-3, the rectangle spring is a kind of resilient suspension parts, is made up of bracing ring 1, coil 2 and bracing ring 23.Spring coil is the rectangle spring ring, and spring bar cross section is circular, and rectangle spring performance line is linear, and its performance diagram is seen Fig. 4, and spring rate is a constant, and the rigidity in length and breadth of spring can be adjusted and control.

Coil in the present embodiment is formed by large diameter spring steel bar hot rolling as the camber of spring body, curl and etc. pitch, can carry and pressurized; With coil two ends and tight and what polish is bracing ring 1 and the bracing ring 22 that the number of turns equates, they only play a supportive role, and do not participate in during work being out of shape.Bracing ring and coil two ends are also tight and polish, and 0.75～0.9 circle is respectively arranged, totally 1.5～1.8 circles, and its end polishes back thickness should be increased and support all horizontal property that the number of turns can improve the spring pressurized greater than 3mm and less than 1/4 of spring footpath.

The planeness of the supporting plane of bracing ring 1 and bracing ring 22 and perpendicularity all require very high, and error is controlled at 0.4～0.6mm; Supporting plane must be perpendicular to axle of spring.

Because spring coil becomes rectangle, so the rectangle spring can adapt to special installing space in the present embodiment; Spring can be avoided the generation of flutter phenomenon, improves the safety in utilization of spring.By designing the actual length of side of different spring coils, can also satisfy different vertical cross stiffness demands;

Embodiment 2:

The rectangle active spring coils adopts and switches political loyalty apart from form in the present embodiment, and promptly the spring performance line is non-linear, and its performance diagram is seen shown in Figure 5, and spring rate becomes big with the increase of load.Other structures are identical with embodiment 1.Safety reliability when steady travelling comfort when the rectangle spring of the distance of switching political loyalty can satisfy the vehicle empty wagons and loaded vehicle.

Claims

1. a rectangle spring is characterized in that comprising bracing ring one, bracing ring two and the coil between bracing ring one and bracing ring two, and the spring coil of described bracing ring one, bracing ring two and coil is a rectangular shape.

2. according to the described rectangle spring of claim 1, the spring coil number of total coils that it is characterized in that described bracing ring one and bracing ring two is 1.5～1.8 circles, and its end polishes back thickness greater than 3mm and less than 1/4 of spring footpath.

3. according to claim 1 or 2 described rectangle springs, it is characterized in that pitch or traitorous distances such as described coil is.