Air spring and automatic clearance compensation method
An air spring, automatic compensation technology, applied in the direction of spring, spring/shock absorber, shock absorber-spring combination, etc., can solve the problem of inability to realize automatic adjustment of the space gap of the air spring, so as to avoid the damage of pulling and breaking. simple effect
Active Publication Date: 2020-09-22
ZHUZHOU TIMES NEW MATERIALS TECH
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Problems solved by technology
However, each space gap adjustment still needs to pick up the car and manual participation, and it is impossible to realize the automatic adjustment of the space gap inside the air spring
Method used
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[0030] In order for those skilled in the art to fully implement the content of the present invention, the content of the present invention will be further described below in conjunction with the drawings and specific embodiments.
[0031] An automatic gap compensation method for an air spring, in which an automatic gap compensation device is provided between an upper cover plate (1) and an auxiliary spring (4), the automatic gap compensation device has two opposite rigid support surfaces, two rigid support The surface has an initial relative distance L, and the reduction of the total height H of the air spring in the deflated state caused by the rubber creep of the auxiliary spring (4) is compensated by increasing the initial relative distance L in the inflated state of the air spring.
[0032] Such as figure 2As shown, one embodiment is to set the gap automatic compensation device between the wear plate (2) and the auxiliary spring (4). The spring (4) contact compensates fo...
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The invention relates to an automatic clearance compensation method of an air spring. An automatic clearance compensation device is arranged between an upper cover plate and an auxiliary spring. By increasing the relative separation distance L of a hard supporting surface in the automatic clearance compensation device in an inflated state of the air spring, decrease of the general height H of theair spring in an air leakage state can be compensated as a result of creep deformation of rubber of the auxiliary spring. The air spring comprises the upper cover plate, a wear plate and the auxiliaryspring and further comprises a supporting plate device located between the upper cover plate and the auxiliary spring. A supporting part in the supporting plate device can generate a supporting forcecapable of separating a top plate and a bottom plate in the inflated state of the air spring, and the supporting force generates a tensile force to an elastic part, so that creep deformation of the elastic part is increased, and therefore, the decrease of the general height H of the air spring in an air leakage state is compensated as a result of creep deformation of rubber of the auxiliary spring.
Description
technical field [0001] The invention relates to the field of air springs for rail transit, and particularly designs an air spring and a gap automatic compensation method. Background technique [0002] The air spring structure for rail transit is generally figure 1 As shown in the upper part, when inflated, there is a certain space gap E in the air spring, and the working height of the air spring in the inflated state is the design value, which is controlled by the height limit valve, and the air spring is inflated by adjusting the air pressure in the air spring. When the working height is stable at about the design height, the wear plate 2 and the support plate 3 are in a non-working state when inflated. When the air spring is in an airless state, the height limit valve does not work, there is no air pressure inside the air spring, the load forces the air spring gap E to be 0, and all the load directly acts on the auxiliary spring through the wear plate 2 and the support pl...
Claims
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IPC IPC(8): F16F13/10
CPCF16F13/102F16F13/108F16F13/103
Inventor 周日炎叶特程海涛段国奇尹翔龙垚坤
Owner ZHUZHOU TIMES NEW MATERIALS TECH