Upper end surface of tapered spring rubber body, and method and product for preventing folds and cracks

A conical spring and rubber body technology, which is applied in springs, transportation and packaging, railway car body parts, etc., can solve the problems that it is difficult to meet the multiple stiffness changes of the locomotive, and the rubber body is wrinkled and cracked, so as to prevent the locomotive from derailment and cracking , Increase the effect of comfort

Active Publication Date: 2015-06-03
ZHUZHOU TIMES RUIWEI ANTI VIBERATION EQUIP LTD
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  • Summary
  • 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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  • Upper end surface of tapered spring rubber body, and method and product for preventing folds and cracks
  • Upper end surface of tapered spring rubber body, and method and product for preventing folds and cracks
  • Upper end surface of tapered spring rubber body, and method and product for preventing folds and cracks

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Experimental program
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Effect test

Embodiment 1

[0040] Such as figure 1 - As shown in 3, a conical spring includes an inner cone 1, a rubber body 2 and an outer cone 3. The lower end of the inner cone 1 extends outward to form an annular inner cone boss 11. The upper end surface 21 of the rubber body 2 is a three-segment multi-segment downhill structure, which are respectively the first circular straight segment 211, the second circular straight segment 212 and the third circular straight segment 213. The circular fillet section 22 is used for transition. In this embodiment, the fillet radii of the two circular fillet segments 22 on the upper end surface of the rubber body 2 are both 4-8 mm. The rubber body 2 surrounds the periphery of the inner cone 1 , and the outer cone 3 surrounds the periphery of the rubber body 2 . The inner cone 1 and the outer cone 3 are metal parts, and the inner cone 1, the outer cone 3 and the rubber body 2 are vulcanized into a whole through the adhesive at a certain temperature and pressure. ...

Embodiment 2

[0050] The structure is roughly the same as that of Embodiment 1, but the upper end surface of the rubber body 2 is not a gentle straight-line edge transition, but a gentle curved edge transition, and the upper end of the rubber body 2 is four sections of annular straight sections 21 and three sections of annular circles. Corner section 22, and the lower end of rubber body 2 is three sections of circular straight section 21 and two sections of annular round corner section 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 the conical spring is from no load to the maximum vert...

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Abstract

The invention provides an upper end surface of a tapered spring rubber body, and a method and a product for preventing folds and cracks. The upper end surface comprises an inner cone, a rubber body and an outer cone, wherein the rubber body is arranged around the periphery of the inner cone; the outer cone is arranged around the periphery of the rubber body; a rubber metal spring which is conically arranged is formed by the rubber body, the inner cone and the outer cone; the upper end surface of the rubber body is connected with the inner cone and the outer cone of the tapered spring, respectively; the rubber body has a gradual descending tendency from the connection part of the rubber body and the outer cone to the inner cone of the rubber body; the upper end surface of the tapered spring rubber body is characterized by being in a multi-section downhill combined profile structure; the upper end surface of the rubber body is formed by combining a plurality of sections of annular end surfaces with different shapes, gradients and lengths. The profile shape of the upper end surface is changed so that the variable stiffness of the tapered spring is adjusted; the upper end surface of the tapered spring rubber body is divided into more than two sections of multi-section profile combination; all sections of the profile have different shapes, gradients and lengths.

Description

technical field [0001] The present invention relates to the improvement of conical springs on locomotives, in particular to a method for adjusting the stiffness of the conical springs and the structure of the upper surface of the conical springs, the method and the structure of the conical springs can realize multiple stiffness changes of the conical springs, and Prevents conical spring rubber from cracking due to wrinkling when compressed with use. It belongs to the technical field of elastic damping. 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 fram...

Claims

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Application Information

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IPC IPC(8): F16F1/393B61F5/30
CPCB61F5/305F16F1/3935
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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