Heightening and leveling device for laying floating road bed

Abstract

The invention discloses a heightening and leveling device for laying a floating road bed. The traditional vibration isolator cannot meet the height and smoothness requirement of the floor. The heightening and leveling device comprises an inner sleeve, a spring, an outer sleeve, a retainer ring and a liner plate, wherein the inner sleeve is fixed on a substrate through an anchor bolt device; the upper end of the inner sleeve is arranged on the top of the outer sleeve in a rotating manner, and the lower end of the inner sleeve penetrates into the outer sleeve; the spring is arranged inside the outer sleeve and connected with the inner sleeve through an anchoring device; the retainer ring is fixedly buckled between the lower part of the spring and the inner wall of the outer sleeve; the liner plate is arranged between the inner sleeve and the substrate. The spring in the inner sleeve is connected with the inner sleeve through the anchoring device, so that the relative displacement of the spring and the inner sleeve caused by the stress on the spring can be reduced, and the integrality of the vibration isolator can be improved. When the heightening and leveling device is arranged on an uneven floor, the liner plate is arranged between a vibration isolation system and the substrate, the levelness of the vibration isolation system is guaranteed, the threaded connection of the inner and outer sleeves guarantees the height of the vibration isolation system, and the heightening and leveling purpose can be realized.

Description

technical field [0001] The invention belongs to the field of railway and urban rail transit, and relates to a height-adjusting and leveling device for a steel spring floating plate. Background technique [0002] With the explosive growth of the urban population, the subway has increasingly become the mainstream choice for people's life and travel due to its advantages of large transportation volume, fast speed, and no congestion, and it has undertaken more and more difficult tasks of residents' travel and transportation. The subway is developing rapidly in China. At the same time, the track system adapted to the subway is also gradually optimized. As a new type of track, the steel spring floating plate has a good vibration reduction effect and a significant noise reduction effect. Therefore, in the subway Widely used in track. But at the same time, in the actual construction process of the steel spring floating slab, the following problems need to be solved urgently: [00...

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Problems solved by technology

[0003] 1. The vibration isolator does not match the reserved space due to the uneven thickness of the base concrete cushion or the deviation of the pouring height of the slab. In order to adapt to the factory flow production of the vibration isolator, reduce the supply cycle, and increase the construction speed, it is urgently needed A vibration isolator that can be adjusted in height to meet the height requirements of the vibration isolator under different conditions

[0004] 2. During the construction process, because the size of the track section is restricted by the red line of the road, it is not allowed to arrange the vibration isolator on the outside of the rail under such conditions. Due to construction errors and other reasons, the vibration isolator is installed on the lower side of the rail, which is not conducive to the later stage of the project. Therefore, it is urgent to design a vibration isolator with anti-overturning function, which can make the vibration isolator get rid of the position constraints to the greatest extent, and make the system design fully meet the anti-overturning safety requirements

[0005] 3. According to a large amount of actual data collection and the response of on-site measured data, bumps are most likely to occur in the transition section where the board and the board are handed over, resulting in uneven driving, which seriously affects the driving mood of passengers and causes unevenness in the transition section The reason is that the stiffness of the transition section where the two plates meet is different, and there will be a significantly different sinking displacement under the action of an external force, forming a more obvious displacement height difference. Therefore, there is an urgent need for an automatic leveling function using stiffness control. Self-leveling device for steel spring floating slab systems

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