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CN-122013659-A - Liquid-solid coupling type height-adjustable support

CN122013659ACN 122013659 ACN122013659 ACN 122013659ACN-122013659-A

Abstract

The invention provides a liquid-solid coupled type adjustable high support, which comprises an upper seat plate, a middle seat plate, a lower seat plate and a high-adjusting seat plate, wherein the upper seat plate is arranged on the upper side of the middle seat plate, the middle seat plate is arranged on the upper side of the lower seat plate, an annular groove is formed in the high-adjusting seat plate, the lower seat plate is at least partially arranged in the annular groove, a relatively sealed high-adjusting space is formed between the high-adjusting seat plate and the lower seat plate, the high-adjusting seat plate is connected with a high-adjusting system, the high-adjusting system is used for conveying liquid-solid mixed liquid or flushing liquid into the high-adjusting seat plate, solid particles in the liquid-solid mixed liquid can be deposited in the high-adjusting space so as to increase the relative height between the lower seat plate and the high-adjusting seat plate, and the flushing liquid can flush out the solid particles in the high-adjusting space, so that the relative height between the lower seat plate and the high-adjusting seat plate is reduced. According to the invention, through the arrangement of the heightening base plate and the transportation of liquid-solid mixed liquid or flushing liquid, the bidirectional stepless adjustment of the supporting height of the support is realized, and the flexibility of the height adjustment of the support is obviously improved.

Inventors

  • GU HAILONG
  • ZHENG PENGFEI
  • HU YUANHONG
  • SONG JIANPING
  • ZENG XIANPING

Assignees

  • 中船双瑞(洛阳)特种装备股份有限公司

Dates

Publication Date
20260512
Application Date
20260403

Claims (10)

  1. 1. The utility model provides a but liquid-solid coupling formula height-adjusting support, its characterized in that, includes upper saddle (1), well bedplate, lower bedplate (4) and heightens bed plate (5), upper saddle (1) set up the upside at well bedplate, well bedplate sets up the upside at lower bedplate (4), be formed with the ring channel on heightening bed plate (5), lower bedplate (4) set up in the ring channel at least partially heighten space that is formed with relative seal between heightening bed plate (5) and lower bedplate (4), heightening bed plate (5) are connected with the system of heightening, the system of heightening is used for carrying liquid-solid mixed liquid or flushing fluid to heightening bed plate (5) in, solid particles in the liquid-solid mixed liquid can deposit in heightening space to increase the relative height between lower bedplate (4) and heightening bed plate (5), the flushing fluid can be with the solid particles in heightening space, thereby reduce the relative height between lower bedplate (4) and heightening bed plate (5).
  2. 2. The liquid-solid coupled height-adjustable support according to claim 1, wherein the height-adjusting system comprises a jacking unit and a liquid-solid filling unit, wherein the jacking unit can jack the lower seat plate (4) when in height adjustment so as to convey liquid-solid mixed liquid or flushing liquid into the height-adjusting space in cooperation with the liquid-solid filling unit, and the lower seat plate (4) descends after solid particles are deposited or flushed, so that the deposited solid particles are compacted.
  3. 3. The liquid-solid coupled type adjustable high support according to claim 2, wherein the jacking unit comprises a jacking supporting part and a jacking piece, the jacking supporting part and the jacking piece are arranged between the outer peripheral surface of the lower seat plate (4) and the top surface of the height-adjustable base plate (5), and the jacking piece can stretch and retract relative to the jacking supporting part so as to support the jacking supporting part to drive the lower seat plate (4) to ascend or descend.
  4. 4. The liquid-solid coupled height-adjustable support according to claim 2, wherein the liquid-solid filling unit comprises a storage tank (9), a high-pressure pump (13), a one-way valve device (11) and a filtering device (7), wherein the input end of the high-pressure pump (13) is communicated with the storage tank (9), the output end of the high-pressure pump (13) is communicated with the height-adjustable space through a medium pipeline inlet (14), the one-way valve device (11) is arranged at the medium pipeline inlet and is used for preventing liquid in the height-adjustable space from flowing back, the filtering device (7) is detachably arranged at a medium outlet of the height-adjustable base plate (5) and is used for intercepting solid particles and allowing liquid to be discharged in the height-adjustable process, and the filtering device (7) is connected with the storage tank (9) through a medium pipeline outlet pipe (8).
  5. 5. The liquid-solid coupled height-adjustable support according to claim 4, wherein the filtering device (7) is arranged in a gradient gap structure, and the filtering pore diameter of the filtering device is gradually reduced along the direction from the height-adjustable space to the distance from the height-adjustable space.
  6. 6. The liquid-solid coupled adjustable height support according to claim 1, wherein the height adjusting system further comprises an automatic control system (12) and an elevation monitoring sensor (15), the elevation monitoring sensor (15) is used for monitoring the relative height between the lower seat plate (4) and the height adjusting base plate (5) in real time, and the automatic control system (12) is electrically connected with the elevation monitoring sensor (15), the high-pressure pump (13) and the jacking unit respectively and is used for controlling the jacking height of the jacking unit and the working state of the high-pressure pump (13) according to the feedback signal of the elevation monitoring sensor (15) so as to realize automatic adjustment of the height of the support.
  7. 7. The liquid-solid coupled height-adjustable support according to claim 1, characterized in that a circumferential sealing device (6) is arranged between the lower seat plate (4) and the height-adjustable base plate (5) for preventing leakage of liquid-solid mixture or flushing liquid from the fit gap between the lower seat plate (4) and the height-adjustable base plate (5) when the liquid-solid filling unit is in operation.
  8. 8. The liquid-solid coupled height-adjustable support according to claim 1, wherein the solid particles in the liquid-solid mixed liquid are solid steel sand or solid zirconia ceramic microbeads, the liquid in the liquid-solid mixed liquid is a mixed liquid taking poly-alpha-olefin blend as base oil, wherein the volume ratio of the solid particles is 45% -55%, the kinematic viscosity of the poly-alpha-olefin blend at 40 ℃ is 80-120mm 2 /s, the viscosity index is >140, and the pour point is < -40 ℃.
  9. 9. The liquid-solid coupled height adjustable support according to claim 8, wherein the solid particles comprise a plurality of particles having different particle sizes.
  10. 10. The liquid-solid coupled height-adjustable support according to claim 9, wherein the solid particles have a coarse particle size of 300-450 μm, a mass ratio of 45-65%, a medium particle size of 150-250 μm, a mass ratio of 20-30%, a fine particle size of 45-75 μm, and a mass ratio of 15-25%, the sphericity of the solid particles is not less than 0.85, and the mohs hardness is not less than 7.

Description

Liquid-solid coupling type height-adjustable support Technical Field The invention relates to the technical field of bridge structures or buildings, in particular to a liquid-solid coupling type height-adjustable support. Background With the development of economy, people have increasingly higher requirements on travel quality, and more comfortable traffic modes with higher speeds are increasingly popular. Both highway, railway and urban rail transit have crossed from the original low-speed times into the present high-speed times, and the appearance of highways and high-speed railways brings great convenience for people's travel. The expressway and the high-speed railway are connected in the north-south aspect, have high speed and large span, can reach thousands of kilometers, have large temperature change in passing areas and have complex geological conditions. In particular, the smoothness requirements of the high-speed railway on the foundation and the bridge are more strict. Especially, when the ballastless track is adopted by the passenger special line railway, the requirement on the line flatness is more strict, besides the necessary height adjustment of the seamless line on the bridge through the track pad and the fastener, the form of the height-adjusting support is easy, convenient, practical and economical to study, and the requirement of the ballastless track on the passenger special line railway bridge is met by properly adjusting the height of the existing support. At present, common heightening support schemes at home and abroad comprise 4 modes of backing plate heightening, spiral heightening, wedge heightening and pressure injection filling body heightening. The screw-type height-adjusting structure is not suitable for occasions with higher bearing capacity requirements, has high corrosion resistance requirements on internal threads, is difficult to replace after rusting, is large in stress of a bolt pushing the wedge block in the wedge block height adjustment process, cannot be too large in gradient of the wedge block, is limited in height adjustment quantity, is difficult to actually construct in a height-adjusting mode of the pressure filling body, is easy to leak due to long-term pressure of the filling body, is greatly influenced by temperature, and is difficult to adjust in later period. The Chinese patent with the publication number of CN212128829U discloses an ultrahigh pressure height-adjusting pressure measuring support, wherein an annular copper ring is arranged at the upper part of a longitudinal injection hole, and when filling materials are injected, the annular copper ring is jacked up firstly, then the annular copper ring acts on the upper part of a rubber sealing ring, so that the problem that the rubber sealing ring is easily damaged and loses efficacy due to the fact that the local part of the rubber sealing ring is subjected to larger pressure is avoided, the longitudinal injection hole is in a funnel shape, and the lower pressure is higher than the upper pressure when the filling materials enter the longitudinal injection hole due to the funnel-shaped structure, so that the problem that the filling materials are easy to flow back is effectively avoided. The patent is characterized in that the support is jacked up after the injected liquid is solidified, so that the purpose of height adjustment is achieved. However, the patent can only realize one-way height adjustment, each injection hole is blocked by solidified materials after injection, the injection hole can only be used once, a plurality of injection holes are required to be arranged for multiple height adjustment, and the use times are limited. In addition, the support cannot be adjusted down, only the support can be replaced when the adjustment is needed, time and effort are wasted. Disclosure of Invention The invention solves the problems that in the prior art, the existing injection height-adjusting support can only be adjusted to be high, the height-adjusting times are limited, and the free adjustment of the height of the support cannot be realized. The invention discloses a liquid-solid coupled type adjustable height support, which comprises an upper seat plate, a middle seat plate, a lower seat plate and a height-adjusting seat plate, wherein the upper seat plate is arranged on the upper side of the middle seat plate, the middle seat plate is arranged on the upper side of the lower seat plate, an annular groove is formed in the height-adjusting seat plate, the lower seat plate is at least partially arranged in the annular groove, a relatively sealed height-adjusting space is formed between the height-adjusting seat plate and the lower seat plate, the height-adjusting seat plate is connected with a height-adjusting system, the height-adjusting system is used for conveying liquid-solid mixed liquid or flushing liquid into the height-adjusting seat plate, solid particles in the liquid-solid mixed liquid can be d