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Double-layer compensation connecting sleeve for double-layer vibration-damping fastener

A technology of vibration-damping fasteners and connecting sleeves, which is applied in the field of rail transit, can solve the problems of high manufacturing and processing precision, high manufacturing and assembly costs, and inability to assemble, so as to reduce processing difficulty, improve overall performance, and simplify assembly. Effect

Pending Publication Date: 2018-06-22
SHANGHAI UNIV OF ENG SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the accumulation of machining errors, the central position of the boss connection column on the lower base plate (such as Figure 9 : a1, b1) and the center position of the bottom plate connecting through hole on the upper bottom plate (such as Figure 9 : The relative position between a2, b2) deviates (d1, d2), which leads to high manufacturing and processing accuracy requirements for the center position of the boss on the lower base plate and the center position of the through hole on the upper base plate, especially if it is manufactured by casting process It is difficult to guarantee the overall performance of the fasteners on the upper and lower plates. In addition, before assembly, it is necessary to select and classify the type according to the error of the different upper and lower backing plates before assembly. The product qualification rate is low and the manufacturing and assembly costs are high. The sleeve cannot pass through the through hole of the upper base plate and then be placed on the boss of the lower base plate, resulting in the problem that it cannot be assembled

Method used

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  • Double-layer compensation connecting sleeve for double-layer vibration-damping fastener
  • Double-layer compensation connecting sleeve for double-layer vibration-damping fastener
  • Double-layer compensation connecting sleeve for double-layer vibration-damping fastener

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Such as figure 1 As shown, a compensating connection sleeve 1 has a ring structure, mainly including an inner surface 2 and an outer surface 3 that are eccentric. Three protrusions are arranged on the upper surface of the compensating connection sleeve 1 to form a positioning surface 11 to limit radial displacement after the assembly is completed. In order to prevent it from rotating during work, causing gauge deviation.

[0032] When using, combine Figure 10 As shown, the compensation connection sleeve 1 is arranged between the bottom connecting through hole 7 of the upper bottom plate 5 and the boss connecting column 8 of the lower bottom plate 6; the bottom connecting through hole 7 is connected to the boss There are two pairs or more than two pairs of columns 8; the feature of the compensation connection sleeve 1 is that the inner surface 2 and the outer surface 3 are eccentric structures; 7 and the relative position between the connecting columns between the b...

Embodiment 2

[0037] Such as figure 2 As shown, a compensating connecting sleeve 1 has a step 9, and the feature of the compensating connecting sleeve 1 is that it has two stepped inner surfaces 2 with different diameters and two inverted stepped outer surfaces 3 with different diameters. , all the inner surfaces 2 are concentric, and all the outer surfaces 3 are concentric, but the inner surface 2 and the outer surface 3 are eccentric structures;

[0038] Such as Figure 5 As shown, the upper base plate 5 is arranged on the lower base plate 6, and the upper base plate 5 is provided with a stepped base plate connection through hole 7, and the lower base plate 6 is provided with a boss connecting column 8, and the boss connecting column 8 is inserted into the base plate connecting through hole 7, and a step-shaped compensation connection sleeve 1 is set between the connection through hole 7 of the bottom plate and the boss connection column 8, and the step 9 of the compensation connection ...

Embodiment 3

[0041] Such as image 3 ,5 As shown, a compensation connection sleeve 1 has a step 9 with a flange 12 on it. The characteristics of the compensation connection sleeve 1 are: all the inner surfaces 2 are concentric, all the outer surfaces 3 are concentric, The inner surface 2 and the outer surface 3 have an eccentric structure; the step 9 of the compensation connecting sleeve 1 sits on the stepped hole of the connection through hole 7 of the upper base plate. The compensation connection sleeve 1 is arranged between the bottom connecting through hole 7 of the upper bottom plate 5 and the boss connection column 8 of the lower bottom plate 5, and the rest is the same as that of the first embodiment.

[0042] Such as Figure 1-3 As shown, the inner surface 2 and the outer surface 3 are circular or elliptical surfaces.

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Abstract

The invention belongs to the field of rail transit, and provides a compensation connecting sleeve for a double-layer vibration-damping fastener. The double-layer vibration-damping fastener comprises an upper bottom plate (5) and a lower bottom plate (6), bottom plate connecting through holes (7) for connecting the upper bottom plate and the lower bottom plate are formed in the upper bottom plate (5) and the lower bottom plate (6), boss connecting columns (8) for connecting the upper bottom plate and the lower bottom plate are arranged on the upper bottom plate (5) and the lower bottom plate (6), the compensation connecting sleeve (1) is arranged between the bottom connecting through holes (7) and the boss connecting columns (8), the compensation connecting sleeve (1) is of an eccentric structure, and the eccentric error of the axis of the relative position between the connecting through holes of the upper bottom plate and the lower bottom plate of the double-layer vibration-damping fastener and the boss connecting column is compensated by rotating different eccentric positions of the compensation connecting sleeve. Compared with the prior art, the compensation connecting sleeve hasthe advantages of being simple in structure, low in cost, convenient to use and the like.

Description

technical field [0001] The invention belongs to the field of rail transit, and in particular relates to a compensation connecting sleeve of a double-layer damping fastener. Background technique [0002] In recent years, domestic urban rail transit systems such as subways and light rails have developed rapidly, effectively alleviating the tension in urban traffic. In this series of construction, the fastener system is indispensable. The fastener is the connection between the rail and the sleeper. The connection with the rail is realized by buckling the rail with elastic strips, and the connection with the sleeper is realized by fixing with anchor bolts. [0003] The double-layer vibration-damping fastener has excellent vibration-damping performance because it has two layers of vibration-damping rubber layers, and has been widely used. Chinese patent CN201210533622.1 discloses an easily disassembled and separated double-layer vibration-damping fastener system. Because of its ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01B9/02
CPCE01B9/02
Inventor 王安斌畅德师徐忠辉蔡斌高晓刚
Owner SHANGHAI UNIV OF ENG SCI