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Conical spring stiffness changing and wrinkle and cracking prevention method, and product

A conical spring, variable stiffness technology, applied in the field of elastic shock absorption, can solve the problems of rubber body wrinkle cracking, difficulty in meeting the multiple stiffness changes of locomotives, etc., and achieve the effects of preventing cracking, good shock absorption, and preventing derailment.

Active Publication Date: 2016-10-19
ZHUZHOU TIMES RUIWEI ANTI VIBERATION EQUIP LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this utility model patent does not allow the axlebox spring to achieve multiple variable stiffness structures, which is difficult to meet the multiple stiffness changes required by the locomotive in different states
[0008]Therefore, so far, there is no effective way to prevent the rubber body from wrinkling and cracking when the conical spring changes its stiffness, and it can meet the multiple times required by the locomotive in different states. The method and device of stiffness change, so it is necessary to further improve this

Method used

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  • Conical spring stiffness changing and wrinkle and cracking prevention method, and product
  • Conical spring stiffness changing and wrinkle and cracking prevention method, and product
  • Conical spring stiffness changing and wrinkle and cracking prevention method, and product

Examples

Experimental program
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Effect test

Embodiment 1

[0047] Such as Figure 1 to Figure 5 As shown, a conical spring includes an inner cone 1 , a rubber body 2 and an outer cone 3 , and the lower end of the inner cone 1 extends outward to form an annular inner cone boss 11 . Such as figure 1 with figure 2 As shown, the upper end surface 21 of the rubber body 2 is a three-section multi-section downhill structure, which are respectively the first annular straight section 211, the second annular straight section 212 and the third annular straight section 213, and every two annular flat sections The circular fillet section 22 is used for transition between the straight sections; the so-called multi-section downhill structure is that the rubber body 2 is gradually descending from the connection with the outer cone 3 to the inner cone 1 of the rubber body 2 . Such as figure 1 with image 3 As shown, the lower end surface of the rubber body 2 is a two-stage multi-stage uphill structure, which are respectively the fourth annular st...

Embodiment 2

[0061] The structure is roughly the same as that of Embodiment 1, but the upper end surface of the rubber body 2 and the lower end surface of the rubber body 2, and the transition edge 111 of the boss adopt not a gentle straight line edge transition, but a gentle curve edge transition, the upper end of the rubber body 2 There are four annular straight sections 21 and three annular rounded corner sections 22 , and the lower end of the rubber body 2 is three annular straight sections 21 and two annular rounded corner sections 22 . Changing the number of segments of the annular straight section 21 can change the number of times the conical spring becomes stiff, that is to say, the number of times of the stiffness of the conical spring can be changed by adjusting the number of ring straight segments 21 . Increasing or reducing the number of annular straight sections 21 can still make the upper and lower ends of the rubber body 2 wrinkle-free and always maintain a smooth shape when ...

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Abstract

Provided are a conical spring stiffness changing and wrinkle and cracking prevention method, and a product. A conical spring comprises an inner cone, a rubber body, and an outer cone. The rubber body surrounds the inner cone. The outer cone surrounds the rubber body. The rubber body, and the inner cone and the outer cone form a rubber metal spring arranged in a conical manner. The conical spring is characterized in that a rubber body upper rubber profile and a rubber body lower rubber profile of the conical spring use a multisection structure form. The rubber body upper rubber profile is a multisection downhill structure, and the rubber body lower rubber profile is a multisection uphill structure. Through changing the shape, slope, and length of each section, and the number of sections in the multisection downhill structure of the rubber body upper rubber profile and the multisection uphill structure of the rubber body lower rubber profile, the size of stiffness changing and the position of stiffness changing of the conical spring are adjusted, and adjustment of multiple stiffness changing is realized through controlling the number of multisection.

Description

technical field [0001] The invention relates to the improvement of conical springs on locomotives, in particular to a method for adjusting the stiffness of the conical springs and a conical spring structure. Shaped spring rubber cracks due to wrinkling when compressed with use. It belongs to the technical field of elastic shock absorption. Background technique [0002] The conical spring is also called the axle box spring, which mainly refers to the spring with damping effect combined with metal and rubber on the locomotive. The conical spring is installed between the axle box and the frame of the rail locomotive to support, dampen and reduce noise. It is a commonly used rubber-metal composite vibration- and noise-reducing element. On the car body, the main function is to bear the load of the car body and frame. The tapered metal parts and the rubber are vulcanized into a whole under a certain temperature and pressure through the adhesive. Its function is to use the vulca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F1/387B61F5/30
CPCF16F1/3828F16F1/3863F16F1/3935
Inventor 谭方丁纬孙海燕冯万盛柳禄泱
Owner ZHUZHOU TIMES RUIWEI ANTI VIBERATION EQUIP LTD
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