CN117107558A - Novel steel spring vibration isolator assembly structure and application method - Google Patents
Novel steel spring vibration isolator assembly structure and application method Download PDFInfo
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- CN117107558A CN117107558A CN202311113758.1A CN202311113758A CN117107558A CN 117107558 A CN117107558 A CN 117107558A CN 202311113758 A CN202311113758 A CN 202311113758A CN 117107558 A CN117107558 A CN 117107558A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 39
- 239000010959 steel Substances 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims description 11
- 238000007667 floating Methods 0.000 claims abstract description 56
- 238000013016 damping Methods 0.000 claims abstract description 55
- 238000007789 sealing Methods 0.000 claims abstract description 12
- 238000010276 construction Methods 0.000 claims abstract description 9
- 239000003795 chemical substances by application Substances 0.000 claims description 32
- 238000005553 drilling Methods 0.000 claims description 9
- 239000004970 Chain extender Substances 0.000 claims description 6
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 6
- 238000005266 casting Methods 0.000 claims description 4
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 3
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical compound ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 claims description 3
- 239000002518 antifoaming agent Substances 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 3
- 229920000570 polyether Polymers 0.000 claims description 3
- 229920005862 polyol Polymers 0.000 claims description 3
- 150000003077 polyols Chemical class 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 claims description 3
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000002994 raw material Substances 0.000 abstract description 3
- 238000003466 welding Methods 0.000 description 13
- 230000009467 reduction Effects 0.000 description 7
- 230000007547 defect Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 210000002421 cell wall Anatomy 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004260 weight control Methods 0.000 description 1
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- 229910052725 zinc Inorganic materials 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B19/00—Protection of permanent way against development of dust or against the effect of wind, sun, frost, or corrosion; Means to reduce development of noise
- E01B19/003—Means for reducing the development or propagation of noise
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/4009—Two or more macromolecular compounds not provided for in one single group of groups C08G18/42 - C08G18/64
- C08G18/4018—Mixtures of compounds of group C08G18/42 with compounds of group C08G18/48
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6603—Compounds of groups C08G18/42, C08G18/48, or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/6607—Compounds of groups C08G18/42, C08G18/48, or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203
- C08G18/6611—Compounds of groups C08G18/42, C08G18/48, or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203 having at least three hydroxy groups
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B1/00—Ballastway; Other means for supporting the sleepers or the track; Drainage of the ballastway
- E01B1/002—Ballastless track, e.g. concrete slab trackway, or with asphalt layers
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention provides a novel steel spring vibration isolator assembly structure which comprises an outer cylinder, an inner cylinder, an insulating cover plate, a leveling plate and a locking plate, wherein the locking plate is provided with an opening clamping groove and used for clamping a connecting block of the outer cylinder; the locking bolt, the horizontal limiter, the outer cylinder comprises an outer tube, a connecting block, a fixed block and a locating pin, the inner cylinder comprises a top cover plate, an inner bottom plate, a spring baffle tube, a spring, a damping agent and a sealing strip, the insulating cover plate is positioned above the outer cylinder, and the leveling plate is positioned below the connecting block of the outer cylinder and above the top cover plate of the inner cylinder; the locking plate, the leveling plate and the inner cylinder top cover plate are locked and fastened by adopting the locking bolts, and the field construction step of the vibration isolator assembly is provided. The invention solves the problem of poor galvanization quality of the bottom plate, improves the production efficiency, increases the stability of the inner cylinder, improves the utilization rate of raw materials and improves the construction efficiency of the on-site floating plate.
Description
Technical Field
The invention relates to the technical field of floating slab track beds, in particular to a novel steel spring vibration isolator assembly structure and an application method.
Background
The floating slab track bed comprises a floating slab and a spring vibration isolator, wherein the floating slab is elastically supported on the spring vibration isolator, the technology overcomes the defects that the prior rubber floating slab and the like can only meet the low-medium-grade vibration reduction requirement, the structure is complex and the like, the appearance of the floating slab track bed technology meets the medium-high-grade vibration reduction requirement, the stability of a system is improved, and the driving safety is enhanced. A great deal of engineering practices in the field of rail transit prove that the floating slab track bed technology is one of the most effective track vibration and noise reduction technologies in the prior art, and particularly in subways and urban light rails, the technology has been widely applied. The performance of the spring vibration isolator has a decisive influence on the vibration reduction of a floating slab track bed, and the current spring vibration isolator mainly has the following problems:
1. the productivity of the outer cylinder of the pouring type integral vibration isolator is low, defects are easy to occur in the manufacturing process, and the product quality cannot be guaranteed;
2. the existing main stream vibration isolator adopts a welding type vibration isolator outer cylinder, the quality of welding seriously influences the service life of the vibration isolator and the safety of line operation, the welding time is longer, and the production efficiency is low, so that the productivity is influenced; the traditional bottom plate and the outer tube welding structure generate a large amount of splashes when being welded, the bottom plate is positioned at the bottom of the cylinder body, the attached splashes are difficult to clean, zinc nodules are generated after galvanization, and the corrosion resistance and the attractiveness of the product are seriously affected;
3. the design lifting amount of the floating slab is 30mm, and the control error of the elevation of the substrate is 0 to-5 mm. The actual jacking amount is 30-35 mm. At present, the height of a common leveling base plate is 40-42 mm, the jacking process is completed through 3-4 wheels, and the primary jacking amount is 10-15 mm. Causing the floating plate lifting step to take a lot of time.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a novel steel spring vibration isolator assembly structure and an application method thereof.
In order to achieve the above purpose, the invention adopts the following technical scheme: a novel steel spring vibration isolator assembly structure, comprising:
the outer cylinder comprises an outer tube, a connecting block, a fixed block and a positioning pin, wherein the outer tube is formed by blanking a steel tube and stamping a bottom plate at the lower end of the outer tube according to a die, a lifting lug is fixed at the outer side of the upper part of the outer tube, the connecting block is fixed on the inner side wall of the upper end of the outer tube, the fixed block is fixed on the inner side wall of the upper end of the outer tube, and the upper end of the positioning pin is fixed on the lower surface of the connecting block;
the inner cylinder is arranged in the outer tube and comprises a top cover plate, an inner bottom plate, a spring baffle tube, a spring, a damping agent and a sealing strip; the spring baffle tube comprises an upper outer baffle tube, an upper inner baffle tube, a lower outer baffle tube and a lower inner baffle tube, wherein the upper outer baffle tube and the upper inner baffle tube are concentrically fixed on the lower surface of the top cover plate, the lower outer baffle tube and the lower inner baffle tube are concentrically fixed on the upper surface of the inner bottom plate, the upper end and the lower end of the spring are arranged in the spring baffle tube and are abutted against the top cover plate and the inner bottom plate, the sealing strip is fixed on the upper outer baffle tube and the lower outer baffle tube through a clamp, the upper outer baffle tube and the lower outer baffle tube are in sealing connection, the damping agent is arranged between the lower outer baffle tube and the lower inner baffle tube, and an assembly groove is formed below the inner bottom plate; the bottom end surface of the connecting block is higher than the top cover plate of the inner cylinder;
the insulating cover plate is positioned above the outer cylinder and is connected with the fixed block by bolts;
the leveling plate is positioned below the connecting block of the outer cylinder and above the top cover plate of the inner cylinder;
the locking plate is provided with an opening clamping groove and used for clamping the connecting block of the outer cylinder;
the locking bolt is used for locking and fixing the locking plate, the leveling plate and the inner cylinder top cover plate into a whole;
the horizontal limiter is arranged below the inner cylinder, the upper part of the horizontal limiter is assembled in the inner bottom plate of the inner cylinder, and the lower part of the horizontal limiter is buried in the pre-drilled hole of the floating plate.
Preferably, the damping agent is formed by heating and mixing an A component and a B component, wherein the A component comprises toluene diisocyanate, polyether polyol and chain extender triol; the component B comprises polyester glycol, a chain extender, a defoaming agent and a drier;
mixing ratio of the component A and the component B: a: b=1.57: 1, a step of;
the total weight of the damping agent is 0.6-0.7 kg;
the damping factor of the damping agent is 1.22;
the reasonable damping modulus of the damping agent is more than 10 mPa;
damping temperature range of the damping agent: the damping temperature range is-25 ℃ to 68 ℃ when tan delta is more than 0.4.
Preferably, the number of the connecting blocks is three, the three connecting blocks are equally divided into the inner diameter circumference of the outer pipe, and the positioning is slightly fixed below one end of the connecting block.
Preferably, the top cover plate is triangular, and a first screw hole is formed in the top cover plate.
Preferably, the leveling plate is triangular or three split plates are adopted, and through holes are formed in the leveling plate corresponding to the first screw holes; the thickness of the leveling plate is 1mm-20mm.
Preferably, a first groove is formed along the length direction of the connecting block, a connecting rib is arranged in the middle of the first groove, and two ends of the connecting rib are connected with the side wall of the first groove to form an I shape.
Preferably, the lifting lug is provided with a transverse bayonet slot.
Preferably, the locking plate is provided with a second screw hole corresponding to the first screw hole, the locking plate is integrated, and the locking plate is provided with a corresponding opening clamping groove relative to the connecting block.
Preferably, the horizontal limiter comprises a main pile and an end block, wherein the end block is concentrically fixed at the upper end of the main pile, and circular truncated cone grooves are formed in the end faces of the upper end and the lower end of the horizontal limiter.
An application method of a novel steel spring vibration isolator assembly structure comprises the following on-site construction steps:
s1: binding the outer cylinder in a reinforcement cage, and binding the lifting lug of the outer cylinder;
s2: casting concrete to form a floating slab: after the outer cylinder and the steel bars are firmly bound, pouring concrete is started to solidify into a floating plate after other floating plate accessories are prepared;
s3: pre-drilling: after the floating plate is maintained, opening an outer cylinder insulating cover plate, positioning the center below the outer cylinder by using a drilling tool, and drilling holes for placing a horizontal limiter;
s4: installing a horizontal limiter: placing the lower part of the horizontal limiter in the hole, and knocking and installing the lower part in place;
s5: inner cylinder assembly: an inner cylinder lifting tool is used for screwing with the inner cylinder, the lifting inner cylinder is placed in the outer cylinder, the top cover plate is triangular, is placed when staggered with the connecting block by 60 degrees, is screwed back by 60 degrees after being placed in the inner cylinder, and is placed below the connecting block, and the upper part of the horizontal limiter is assembled in an assembling groove of the inner bottom plate; placing an upper leveling plate on the top cover plate of the inner cylinder, wherein the triangle of the leveling plate is overlapped with the triangle of the top cover plate;
s6: jacking preparation: a jacking tool and a hydraulic jack are arranged above the leveling plate, the hydraulic jack is assembled in the jacking tool, three mounting blocks are arranged on the outer side of the jacking tool, the position of the jacking tool is adjusted, and the mounting blocks are configured in the first groove;
s7: lifting the floating plate: simultaneously, a plurality of jacks are operated by a plurality of persons to jack up the floating plate; rotating the inner cylinder and a leveling plate with proper thickness to the lower part of the connecting block, so as to finish the first lifting of the floating plate with a certain length;
s8: repeating the step S7, and jacking for a plurality of times until the ballast bed reaches the height required by the line;
s9: locking leveling plate: the opening clamping groove of the locking plate is aligned with any connecting block to be installed, the locking bolt is screwed, and the leveling plate is locked;
s10: fixing the insulating cover plate: and (3) covering an insulating cover plate, and fixing the insulating cover plate on a fixing block of the outer cylinder by using bolt connection.
Compared with the prior art, the invention has the beneficial effects that:
1. the novel outer cylinder structure replaces an outer tube and bottom plate welding structure by a stamping outer tube structure, so that the number of welding seams of the vibration isolator is reduced, and the risks of unstable factors such as welding defects are reduced; the welding splashing of the bottom plate is effectively avoided, and the problem of poor galvanization quality of the bottom plate is fundamentally solved; meanwhile, the production efficiency is greatly improved;
2. the novel vibration isolator assembly structure is characterized in that a locking plate, a leveling plate and an inner cylinder are fixed together through a locking bolt to form an integral structure, the integral structure is fixed with an outer cylinder through a clamping groove of the locking plate, and the bottom of the inner cylinder is arranged on a substrate through a horizontal limiter. Therefore, the upper part and the lower part of the inner cylinder are firmly fixed, and the stability of the inner cylinder is greatly improved.
3. The leveling plate is preferably of a split type structure, the leveling plate is locked on the top cover plate of the inner cylinder by the locking plate, meanwhile, the locking plate clamps the connecting block, rotation of the locking plate, the leveling plate and the top cover plate is limited, and the utilization rate of raw materials is effectively improved due to the implementation of the split type leveling plate structure;
4. according to the difference of the height of the inner cylinder, the height of the connecting block of the outer cylinder is adjusted, so that the bottom end surface of the connecting block is higher than the top cover of the inner cylinder by a certain distance. Then, according to the maximum lifting amount of the floating plate, the proper leveling plate combination thickness is selected, so that the lifting times of the floating plate can be effectively reduced, the lifting of the floating plate can be completed in 2-3 times, and the construction efficiency of the on-site floating plate is greatly improved.
Drawings
FIG. 1 is a schematic view of a novel steel spring vibration isolator assembly according to the present invention;
FIG. 2 is a schematic illustration of the outer barrel structure of a novel steel spring vibration isolator assembly according to the present invention;
FIG. 3 is a top plan view of the outer barrel of the novel steel spring vibration isolator assembly structure of the present invention;
FIG. 4 is a schematic view of the structure of a connecting block of the novel steel spring vibration isolator assembly structure of the present invention;
FIG. 5 is a schematic view of the inner barrel of a novel steel spring isolator assembly according to the present invention;
FIG. 6 is a top view of the inner barrel of the novel steel spring isolator assembly structure of the present invention;
FIG. 7 is a schematic illustration of the structure of a leveling plate of a novel steel spring vibration isolator assembly structure of the present invention;
FIG. 8 is a schematic view of a split leveling plate of a novel steel spring vibration isolator assembly structure of the present invention;
FIG. 9 is a schematic view of the structure of a locking plate of a novel steel spring vibration isolator assembly structure of the present invention;
FIG. 10 is a schematic view of a horizontal stop of a novel steel spring isolator assembly structure in accordance with the present invention;
fig. 11 is a schematic view of the structure of an insulating cover plate of the novel steel spring vibration isolator assembly structure of the present invention.
Description of the embodiments
For a further understanding of the objects, construction, features, and functions of the invention, reference should be made to the following detailed description of the preferred embodiments.
1-11, a novel steel spring vibration isolator assembly structure includes:
the outer cylinder 100 comprises an outer tube 110, a connecting block 120, a fixed block 130 and a positioning pin 140, wherein the outer tube 110 is formed by blanking a steel tube according to a die, a bottom plate 150 is punched at the lower end of the outer tube 110, and a punched outer tube structure is adopted to replace an outer tube and bottom plate welding structure, so that the number of welding seams of the vibration isolator is reduced, and the risks of unstable factors such as welding defects are reduced; the welding procedure of the bottom plate 150 is eliminated, so that the welding splashing of the bottom plate is effectively avoided, and the problem of poor galvanization quality of the bottom plate is fundamentally solved; meanwhile, the stamping time is used for replacing the welding time of the original bottom plate 150 structure, so that the production efficiency is greatly improved; the outer side of outer tube 110 upper portion is fixed lug 160, connecting block 120 is fixed the inside wall of outer tube 110, fixed block 130 is fixed on the inside wall of the upper end of outer tube 110 for fixed insulating cover 300, and provide certain support to insulating cover 300, guarantee that insulating cover 300 is fixed firm outside, can also increase insulating cover 300 and urceolus 100 area of contact, improve insulating cover 300's bearing capacity's performance, can improve floating plate's life and range of application. The upper end of the positioning pin 140 is fixed on the lower surface of the connecting block 120; used for positioning the inner cylinder 200, ensuring that the inner cylinder 200 can quickly reach a designated position, and saving assembly time. The connecting block 120, the fixing block 130 and the lifting lug 160 are respectively welded with the outer tube 110, and the connecting block 120 can be adjusted in height according to the requirement. According to the different heights of the inner cylinder 200, the height of the connecting block 120 of the outer cylinder 100 is adjusted so that the bottom end surface of the connecting block 120 is higher than the top cover plate of the inner cylinder 200 by a certain distance. Then, according to the maximum lifting amount of the floating plate, the proper leveling plate combination thickness is selected, so that the lifting times of the floating plate can be effectively reduced, the lifting of the floating plate can be completed in 2-3 times, and the construction efficiency of the on-site floating plate is greatly improved.
An inner barrel 200, the inner barrel 200 being disposed within the outer tube 110, the inner barrel 200 comprising a top cover 210, an inner bottom plate 220, a spring retainer 230, a spring 240, a damping agent 250, and a sealing strip 260; the waterproof performance, rigidity, damping ratio and fatigue performance of the composite material meet the use requirements. The spring baffle 230 comprises an upper outer baffle 231, an upper inner baffle 232, a lower outer baffle 233 and a lower inner baffle 234, the upper outer baffle 231 and the upper inner baffle 232 are concentrically fixed on the lower surface of the top cover plate 210, the lower outer baffle 233 and the lower inner baffle 234 are concentrically fixed on the upper surface of the inner bottom plate 220, the upper and lower ends of the spring 240 are arranged in the spring baffle 230 and are abutted against the top cover plate 210 and the inner bottom plate 220, and the two ends of the spring 240 can be firmly connected with the top cover plate 210 and the inner bottom plate 220 through the spring baffle 230, so that the stress transmission during use is ensured. The sealing strip 260 is fixed on the upper outer baffle 231 and the lower outer baffle 233 through a clamp 270, the upper outer baffle 231 is in sealing connection with the lower outer baffle 233, the clamp 270 can be a binding belt, and the sealing strip 260 plays a role in sealing to prevent water, dust and sundries from entering. The damping agent 250 is arranged between the lower outer baffle tube 233 and the lower inner baffle tube 234, the damping agent 250 is formed by mixing heated A glue and heated B glue, and the proportion fine adjustment is carried out according to damping ratio parameters. The outer cylinder 100 transmits force to the inner cylinder top cover plate 210 through the connecting block 120, and sequentially transmits the force to the spring 240 and the damping agent 250, and vibration energy generated by the spring 240 is absorbed and released by the damping agent 250, so that the purposes of vibration and noise reduction are achieved, the vibration and noise reduction are achieved through the cooperation of the spring 240 and the damping agent 250, and an assembly groove 221 is formed below the inner bottom plate 220 and used for assembling a horizontal limiter.
The insulating cover plate 300 is positioned above the outer cylinder, and is connected with the fixed block 130 by bolts; the insulating cover 300 is made of insulating material and can bear 5KV voltage without breakdown.
A leveling plate 400, wherein the leveling plate 400 is positioned below the connecting block 120 of the outer cylinder and above the top cover plate 210 of the inner cylinder;
a locking plate 500 provided with an opening clamping groove 510 for clamping the connecting block 120 of the outer cylinder; the locking plate 500 is used for clamping the connecting block, so that the leveling plate 400 can be limited to horizontally rotate.
The locking bolt 600 is used for locking and fixing the locking plate 500, the leveling plate 400 and the inner cylinder top cover plate 210 into a whole by adopting the locking bolt 600;
the horizontal limiter 700 is installed below the inner cylinder 200, the upper portion of the horizontal limiter 700 is assembled in the inner bottom plate 220 of the inner cylinder, and the lower portion of the horizontal limiter 700 is buried in the floating plate pre-drilled hole. The horizontal displacement of the inner cylinder 200 is restricted by the horizontal stopper 700 so that the inner cylinder 200 can move only in the vertical direction. In the use process, the locking plate 500, the leveling plate 400 and the top cover plate 210 are fixed together through the locking bolt 600 to form an integral structure, and are integrally fixed with the outer cylinder 100 through the opening clamping groove of the locking plate 500, and the bottom of the inner cylinder is installed on the substrate through the horizontal limiter 700. Thus, the upper and lower parts of the inner cylinder 200 are firmly fixed, and the stability of the inner cylinder 200 is greatly increased. The horizontal limiter 700 may be formed by machining or forging a metal material vehicle, and then subjected to special surface treatment to satisfy the corrosion resistance. Or injection molding of nonmetallic materials. Prevent from rust when using, influence the life of floating plate.
Preferably, three connection blocks 120 are provided, three connection blocks 120 are equally disposed on the circumference of the inner diameter of the outer tube 110, the top cover 210 is triangular, and the top cover 210 is provided with a first screw hole 211. The problem that the same large whole round shape can not be placed in the outer cylinder 100 is solved, when the inner cylinder 200 is installed, the inner cylinder 200 can be placed in an opening above the outer cylinder 100 through the design of the connecting block 120, the top cover plate 210 is placed in the connecting block 120 in a staggered mode by 60 degrees, and the top cover plate is rotated by 60 degrees after being placed in the connecting block 120. Facilitating installation of the inner barrel 200. The positioning pin 140 is fixed below one end of the connecting block 120. Conveniently when putting into the inner tube, lamina tecti 210 can only rotate in adjacent limited region, can accurately find the position through the rotation, and lamina tecti 210 of inner tube just put in the connecting block below fast.
Preferably, the leveling plate 400 is triangular or three split plates are adopted, and three split plates can be adopted as the leveling plate, so that the leveling plate 400 is convenient to place, and simultaneously, the locking plate 500 is matched with the leveling plate, and is fastened by bolts, so that the function of limiting the rotation of the leveling plate is also achieved, and the raw material utilization rate is effectively improved due to the implementation of the split leveling plate 400; a through hole 410 is formed in the leveling plate 400 corresponding to the first screw hole; the thickness of the leveling plate 400 is 1mm to 20mm. The leveling plate 400 can have different thicknesses of 1mm, 2mm, 5mm, 10mm, 20mm and the like for selection, and the proper thickness is selected according to the leveling requirement so as to adjust the height of the floating plate.
Preferably, a first groove 121 is provided along the length direction of the connection block 120, a connection rib 122 is provided in the middle of the first groove 121, and two ends of the connection rib 122 are connected with the side wall of the first groove 121 to form an i shape. The strength between two cell walls of first recess 121 is guaranteed through connecting rib 122 to when using, need to assemble jacking frock in first recess 121, provide the atress for hydraulic jack, prevent that the cell wall of first recess 121 can't bear the weight of, take place to damage, guarantee the normal clear of jacking, simultaneously, connecting rib 122 divide into two parts to first recess, when one side takes place to damage, can not influence the opposite side, the position of accessible adjustment jacking frock carries out the jacking operation, avoid unable jacking operation of going on, can only be operated by the isolator of other positions, lead to the floating plate atress inhomogeneous, take place the plane slope, influence follow-up railway roadbed quality.
Preferably, the lifting lug 160 is provided with a transverse bayonet groove 161. The lifting lug and the steel bar are conveniently bundled through the bayonet groove 161 when the vibration isolator is used, the bundled steel wire is prevented from sliding on the lifting lug 160, the fixation firmness between the outer cylinder 100 and the steel bar is ensured, and the fixation stability between the vibration isolator and the floating plate is ensured through an integral casting mode.
Preferably, the locking plate 500 is provided with a second screw hole 520 corresponding to the first screw hole, the locking plate is integrated, and the locking plate is provided with a corresponding opening clamping groove 510 at a position corresponding to the connecting block. Three open slots 510 may be provided. The locking plate 500 is conveniently fixed on the connecting block 120 through the opening clamping groove 510, the leveling plate 400 is locked on the inner cylinder top cover plate 210 through the fastening bolt, and meanwhile, the locking plate 500 clamps the connecting block 120, so that the rotation of the locking plate 500, the leveling plate 400 and the top cover plate 210 is limited.
Preferably, the horizontal limiter 700 comprises a body pile 710 and an end block 720, the end block 720 is concentrically fixed at the upper end of the body pile 710, when in use, the body pile 710 can be buried in a pre-drilled hole, the end block 720 is arranged in the assembly groove 221 of the inner bottom plate 220, and the end faces of the upper end and the lower end of the horizontal limiter 700 are provided with circular truncated cone grooves 730. The circular truncated cone-shaped groove 730 is used for compensating heat expansion and cold contraction of the horizontal limiter, so that the service time of the horizontal limiter is prolonged, and the floating plate is long in service life and applicable to severe environments.
The damping agent is formed by heating and mixing the component A and the component B, and is a viscoelastic colorless fluid after solidification. The component A comprises toluene diisocyanate (Tdi), polyether polyol and chain extender triol (trihydroxy); the component B comprises polyester glycol, a chain extender, a defoaming agent and a drier; the component A is transparent liquid, and the component B is colorless near-transparent liquid. The component A and the component B have certain fluidity before and just after mixing, and the fluidity can be cast in structural members with various shapes. After the mixing is completed, the component A and the component B are subjected to curing reaction, the molecular weight is increased, a three-dimensional network structure is formed, and the three-dimensional network structure is free from fluidity. The cured material cannot be poured according to the shape of the structural member. The damping agent is guaranteed to be poured according to the shape of the structural part after being poured into the inner cylinder, the adaptability is strong, the combination property between the structural part and the damping agent is improved, the received vibration is uniformly buffered, the vibration reduction stability of a product is improved, and the service life is prolonged.
Performing proportion fine adjustment according to damping ratio parameters; through a great deal of research, it is found that factors affecting damping ratio performance are mainly composed of the following:
1) Mixing proportion of the A/B double components;
2) The total weight of the damping agent;
3) Damping factor of the damping agent;
4) Damping modulus factor of the damping agent;
5) Damping temperature range factors of the damping agent.
The experiment proves that:
for the damping material mixing ratio, from a: b=2: performing a large number of performance comparison tests according to the ratio of 1-1:1, and finally confirming that the mixing ratio is A: b=1.57: the damping ratio performance is better in the case of 1.
The total weight of the damping agent: a comparison experiment is carried out in a mode of increasing every 0.1KG from 0.4KG to 1.5KG of the total weight of the mixture, and the final result proves that the damping performance is better when the total weight is 0.6 KG to 0.7KG, and the weight continues to increase without obvious change.
The damping factor test shows that the performance is better when the damping factor is 1.22.
The reasonable damping modulus is more than 10 MPa and the performance is better.
Damping temperature range (tan delta > 0.4) -25-68 ℃. The performance is better.
The optimal parameters and the optimal proportion are determined by realizing all factors of the damping agent, so that the product performance is improved, and the service life of the product is prolonged; through weight control to the damping agent filling, reduce the waste of damping agent, improve the availability factor of damping agent.
An application method of a novel steel spring vibration isolator assembly structure comprises the following on-site construction steps:
s1: binding the outer cylinder 100 in a reinforcement cage, and binding at the position of a lifting lug 160 of the outer cylinder;
s2: casting concrete to form a floating slab: after the outer cylinder 100 and the steel bars are firmly bound, pouring concrete is started to be solidified into a floating plate after other floating plate accessories are prepared;
s3: pre-drilling: after the floating plate is maintained, opening the outer cylinder insulating cover plate 300, positioning the center below the outer cylinder by using a drilling tool, and drilling holes for placing the horizontal limiter 700;
s4: installing a horizontal limiter: placing the lower part of the horizontal stopper 700 in the hole, and knocking and installing in place;
s5: inner cylinder assembly: the inner cylinder lifting tool is used for being screwed with the inner cylinder 200, the inner cylinder 200 is lifted and placed in the outer cylinder, the top cover plate 210 is triangular, is placed when being staggered with the connecting block 120 by 60 degrees, is rotated by 60 degrees after being placed in, is placed below the connecting block 120, and the upper part of the horizontal limiter 700 is assembled in the assembling groove 221 of the inner bottom plate; placing a leveling plate 400 on the inner cylinder top cover plate 210, wherein the triangle of the leveling plate 400 coincides with the triangle of the top cover plate 210;
s6: jacking preparation: a jacking tool and a hydraulic jack are arranged above the leveling plate 400, the hydraulic jack is assembled in the jacking tool, three mounting blocks are arranged on the outer side of the jacking tool, the position of the jacking tool is adjusted, and the mounting blocks are configured in the first groove 121;
s7: lifting the floating plate: simultaneously, a plurality of jacks are operated by a plurality of persons to jack up the floating plate; rotating the inner cylinder 200 and the leveling plate 400 with proper thickness to the lower part of the connecting block 120 to finish the first lifting of the floating plate with a certain length;
s8: repeating the step S7, and jacking for a plurality of times until the ballast bed reaches the height required by the line;
s9: locking leveling plate: the open clamping groove 510 of the locking plate 500 is aligned with any one of the connecting blocks 120 to be installed, the locking bolt 600 is screwed, and the leveling plate 400 is locked;
s10: fixing the insulating cover plate: the insulating cover 300 is covered, and the insulating cover 300 is fixed to the fixing block 130 of the outer tub using a bolt connection.
According to the invention, through the integral pouring of the outer cylinder and the floating plate, a horizontal limiter is installed at a base position in the middle of the outer cylinder in a punching way after the pouring is finished, then the inner cylinder is arranged on the horizontal limiter, the floating plate is integrally lifted at a suspended position in the middle of the outer cylinder and the inner cylinder, a leveling plate is inserted and adjusted in place, the floating plate is put down and pressed on a leveling base plate, a locking plate is arranged in the floating plate, a clamping groove of the locking plate is exactly clamped on a connecting block of the outer cylinder, and is fixed by a locking gasket and a locking bolt, and finally the outer cylinder, the inner cylinder, the leveling plate, the locking bolt, the locking gasket and the horizontal limiter are assembled into an integral vibration isolator assembly, so that the horizontal displacement of the inner cylinder is limited, and the inner cylinder can only move in the vertical direction. In the actual use process, the lifting step can be completed by changing the position relation of the inner cylinder and the outer cylinder and selecting a proper leveling plate thickness combination at the same time, so that the floating plate passes through 2-3 wheels. The number of times of floating slab jacking is effectively reduced, so that the efficiency of on-site floating slab construction is improved.
The invention has been described with respect to the above-described embodiments, however, the above-described embodiments are merely examples of practicing the invention. It should be noted that the disclosed embodiments do not limit the scope of the invention. On the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.
Claims (10)
1. Novel steel spring isolator assembly structure, its characterized in that: comprising the following steps:
the outer cylinder comprises an outer tube, a connecting block, a fixed block and a positioning pin, wherein the outer tube is formed by blanking a steel tube and stamping a bottom plate at the lower end of the outer tube according to a die, a lifting lug is fixed at the outer side of the upper part of the outer tube, the connecting block is fixed on the inner side wall of the upper end of the outer tube, the fixed block is fixed on the inner side wall of the upper end of the outer tube, and the upper end of the positioning pin is fixed on the lower surface of the connecting block;
the inner cylinder is arranged in the outer tube and comprises a top cover plate, an inner bottom plate, a spring baffle tube, a spring, a damping agent and a sealing strip; the spring baffle tube comprises an upper outer baffle tube, an upper inner baffle tube, a lower outer baffle tube and a lower inner baffle tube, wherein the upper outer baffle tube and the upper inner baffle tube are concentrically fixed on the lower surface of the top cover plate, the lower outer baffle tube and the lower inner baffle tube are concentrically fixed on the upper surface of the inner bottom plate, the upper end and the lower end of the spring are arranged in the spring baffle tube and are abutted against the top cover plate and the inner bottom plate, the sealing strip is fixed on the upper outer baffle tube and the lower outer baffle tube through a clamp, the upper outer baffle tube and the lower outer baffle tube are in sealing connection, the damping agent is arranged between the lower outer baffle tube and the lower inner baffle tube, and an assembly groove is formed below the inner bottom plate; the bottom end surface of the connecting block is higher than the top cover plate of the inner cylinder;
the insulating cover plate is positioned above the outer cylinder and is connected with the fixed block by bolts;
the leveling plate is positioned below the connecting block of the outer cylinder and above the top cover plate of the inner cylinder;
the locking plate is provided with an opening clamping groove and used for clamping the connecting block of the outer cylinder;
the locking bolt is used for locking and fixing the locking plate, the leveling plate and the inner cylinder top cover plate into a whole;
the horizontal limiter is arranged below the inner cylinder, the upper part of the horizontal limiter is assembled in the inner bottom plate of the inner cylinder, and the lower part of the horizontal limiter is buried in the pre-drilled hole of the floating plate.
2. The novel steel spring vibration isolator assembly structure of claim 1, wherein: the damping agent is formed by mixing a component A and a component B after heating, wherein the component A comprises toluene diisocyanate, polyether polyol and chain extender triol; the component B comprises polyester glycol, a chain extender, a defoaming agent and a drier;
mixing ratio of the component A and the component B: a: b=1.57: 1, a step of;
the total weight of the damping agent is 0.6-0.7 kg;
the damping factor of the damping agent is 1.22;
the reasonable damping modulus of the damping agent is more than 10 mPa;
damping temperature range of the damping agent: the damping temperature range is-25 ℃ to 68 ℃ when tan delta is more than 0.4.
3. The novel steel spring vibration isolator assembly structure of claim 1, wherein: the three connecting blocks are arranged at the circumference of the inner diameter of the outer pipe, the three connecting blocks are equally divided, and the positioning is slightly fixed below one end of the connecting block.
4. A novel steel spring vibration isolator assembly structure as claimed in claim 3, wherein: the top cover plate is triangular, and a first screw hole is formed in the top cover plate.
5. The novel steel spring vibration isolator assembly structure according to claim 4, wherein: the leveling plate is triangular or three split plates are adopted, and through holes are formed in the leveling plate corresponding to the first screw holes; the thickness of the leveling plate is 1mm-20mm.
6. A novel steel spring vibration isolator assembly structure as claimed in claim 3, wherein: the connecting block is characterized in that a first groove is formed in the connecting block along the length direction, a connecting rib is arranged in the middle of the first groove, and two ends of the connecting rib are connected with the side wall of the first groove to form an I shape.
7. The novel steel spring vibration isolator assembly structure of claim 1, wherein: and the lifting lug is provided with a transverse bayonet slot.
8. The novel steel spring vibration isolator assembly structure according to claim 4, wherein: the locking plate is provided with a second screw hole corresponding to the first screw hole, the locking plate is integrated, and a corresponding opening clamping groove is formed in the locking plate relative to the connecting block.
9. The novel steel spring vibration isolator assembly structure of claim 1, wherein: the horizontal limiter comprises a main pile and end blocks, wherein the end blocks are concentrically fixed at the upper end of the main pile, and circular truncated cone-shaped grooves are formed in the end faces of the upper end and the lower end of the horizontal limiter.
10. A method of using the novel steel spring vibration isolator assembly structure of claim 1, characterized by: the field construction steps comprise:
s1: binding the outer cylinder in a reinforcement cage, and binding the lifting lug of the outer cylinder;
s2: casting concrete to form a floating slab: after the outer cylinder and the steel bars are firmly bound, pouring concrete is started to solidify into a floating plate after other floating plate accessories are prepared;
s3: pre-drilling: after the floating plate is maintained, opening an outer cylinder insulating cover plate, positioning the center below the outer cylinder by using a drilling tool, and drilling holes for placing a horizontal limiter;
s4: installing a horizontal limiter: placing the lower part of the horizontal limiter in the hole, and knocking and installing the lower part in place;
s5: inner cylinder assembly: an inner cylinder lifting tool is used for screwing with the inner cylinder, the lifting inner cylinder is placed in the outer cylinder, the top cover plate is triangular, is placed when staggered with the connecting block by 60 degrees, is screwed back by 60 degrees after being placed in the inner cylinder, and is placed below the connecting block, and the upper part of the horizontal limiter is assembled in an assembling groove of the inner bottom plate; at the moment, the bottom end surface of the connecting block is higher than the top cover plate of the inner cylinder by a certain distance, a leveling plate is arranged on the top cover plate of the inner cylinder, and the triangle of the leveling plate is overlapped with the triangle of the top cover plate;
s6: jacking preparation: a jacking tool and a hydraulic jack are arranged above the leveling plate, the hydraulic jack is assembled in the jacking tool, three mounting blocks are arranged on the outer side of the jacking tool, the position of the jacking tool is adjusted, and the mounting blocks are configured in the first groove;
s7: lifting the floating plate: simultaneously, a plurality of jacks are operated by a plurality of persons to jack up the floating plate; rotating the inner cylinder and a leveling plate with proper thickness to the lower part of the connecting block, so as to finish the first lifting of the floating plate with a certain length;
s8: repeating the step S7, and jacking for a plurality of times until the ballast bed reaches the height required by the line;
s9: locking leveling plate: the opening clamping groove of the locking plate is aligned with any connecting block to be installed, the locking bolt is screwed, and the leveling plate is locked;
s10: fixing the insulating cover plate: and (3) covering an insulating cover plate, and fixing the insulating cover plate on a fixing block of the outer cylinder by using bolt connection.
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| CN202311113758.1A CN117107558A (en) | 2023-08-31 | 2023-08-31 | Novel steel spring vibration isolator assembly structure and application method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311113758.1A CN117107558A (en) | 2023-08-31 | 2023-08-31 | Novel steel spring vibration isolator assembly structure and application method |
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