CN105821722B - Screw shock absorber floating plate track system and jacking equipment and jacking method thereof - Google Patents
Screw shock absorber floating plate track system and jacking equipment and jacking method thereof Download PDFInfo
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- CN105821722B CN105821722B CN201610356938.6A CN201610356938A CN105821722B CN 105821722 B CN105821722 B CN 105821722B CN 201610356938 A CN201610356938 A CN 201610356938A CN 105821722 B CN105821722 B CN 105821722B
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/08—Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated
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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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
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- General Engineering & Computer Science (AREA)
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Abstract
The invention relates to a screw damper floating plate track system, which comprises a floating track plate and a screw damper for supporting the floating track plate, wherein the screw damper comprises: a threaded collar supporting a floating track plate having internal threads; the elastic inner cylinder body is arranged on the foundation and is provided with an elastic piece and a screw rod heightening piece, the elastic piece is arranged below the screw rod heightening piece, the screw rod heightening piece is elastically supported by the screw rod heightening piece, the screw rod heightening piece is provided with an external thread screwed with the internal thread of the thread ferrule, the screwing depth of the elastic inner cylinder body in the thread ferrule is adjusted by rotating the screw rod heightening piece or the elastic inner cylinder body, and the stepless adjustment of the jacking height of the floating track plate by the screw shock absorber is realized. The floating track slab can quickly and accurately finish horizontal leveling and jacking actions, so that simple, quick, accurate and stepless height adjustment is realized, the economic benefit and the engineering benefit are very obvious, and the floating track slab has wide popularization and application prospects. The invention also provides a mounting method and mounting equipment matched with the device.
Description
Technical Field
The invention belongs to the field of vibration reduction and noise reduction of rail transit, and particularly relates to a screw vibration reducer floating slab rail system applicable to rail transit such as high-speed rails, subways and light rails.
Background
In recent years, the rapidly developed rail transit greatly facilitates the travel of residents. The characteristics of large traveling density, short interval, incapability of maintaining and maintaining in daytime and the like of urban rail transit determine that the ballastless track structure is adopted by the urban rail transit. However, the ballastless track has high structural rigidity and strong vibration response, huge noise is generated during vibration, and most of urban rail transit lines penetrate urban districts and residential areas, so that vibration and noise reduction of the track traffic are problems needing to be handled in a key mode.
There are many ways to reduce vibration and noise, with floating plates being the most effective of them. The elastic vibration absorber is arranged in the floating plate, so that the track plate is separated from the foundation, and the effects of vibration absorption and noise reduction are achieved.
Present elastic damper adjusts its height through change gasket quantity, its height can not continuous adjustment, the precision is low, this kind of shock absorber floating plate track system can't satisfy increasingly complicated construction topography gradually, and it needs the cooperation to use the jack to carry out the construction, its slow loaded down with trivial details construction procedure has also greatly delayed the construction progress for the shock absorber floating plate track system that adopts at present mostly has the construction complicacy, the performance is ageing too fast, the weatherability is poor, the later maintenance cost is high, overhaul very inconvenient scheduling problem.
Disclosure of Invention
Technical problem to be solved
In order to solve the problems in the prior art, the invention provides a screw damper floating slab track system which is quick and simple in construction, high in precision and good in damping effect and can be adjusted in a stepless manner.
The invention further aims to provide a jacking and installing method of the screw damper.
It is yet another object of the present invention to provide an intelligent jacking tool for screw dampers.
(II) technical scheme
In order to achieve the purpose, the invention adopts the main technical scheme that:
a screw damper floating plate track system comprising a floating track plate and a plurality of dampers supporting the floating track plate, wherein the dampers comprise screw dampers comprising:
a threaded collar supporting a floating track plate having internal threads;
the elastic inner cylinder body is arranged on the foundation and is provided with an elastic part and a screw rod heightening part, the elastic part is arranged below the screw rod heightening part and elastically supports the screw rod heightening part, the screw rod heightening part is provided with an external thread screwed with the internal thread of the thread ferrule, the screwing depth of the elastic inner cylinder body in the thread ferrule is adjusted by rotating the screw rod heightening part or the elastic inner cylinder body, and the stepless adjustment of the jacking height of the floating track plate by the screw shock absorber is realized.
The screw damper floating plate rail system of one embodiment of the present invention, wherein: the thread ferrule is prefabricated on the floating track plate or is embedded in the floating track plate in a cast-in-place mode.
The screw damper floating plate rail system of one embodiment of the present invention, wherein: the threaded ferrule is also provided with external threads to enhance the connection strength with the floating track plate. For example, the outer surface of the threaded ferrule is integrally cast with the concrete track slab, and the threads can enhance the bonding force of the threaded ferrule and the concrete.
The screw damper floating plate rail system of one embodiment of the present invention, wherein: the thread of the threaded collar comprises a triangular thread, a rectangular thread, a trapezoidal thread and a sawtooth thread.
The screw damper floating plate rail system of one embodiment of the present invention, wherein: the thread ferrule is made of nylon, steel, synthetic fiber or engineering plastic.
The screw damper floating plate rail system of one embodiment of the present invention, wherein: the elastic member includes a coil spring, a disc spring, a rubber metal composite spring or a disc rubber composite spring having predetermined rigidity and elasticity in the vertical and horizontal directions.
The screw damper floating plate rail system of one embodiment of the present invention, wherein: the screw rod heightening part is provided with a counter-sunk screwing part for an external tool to rotate the screw rod heightening part. The counter bores may be in-line, cross, square or hexagonal.
The screw damper floating plate rail system of one embodiment of the present invention, wherein: the screw damper also has a seal cap in threaded connection with the threaded collar.
The screw damper floating plate rail system of one embodiment of the present invention, wherein: the screw vibration absorbers are uniformly arranged on the outer side, the inner side or the inner side and the outer side of the steel rail in an alternating way.
Any one of the above screw damper floating plate track systems wherein: the elastic inner cylinder body is also provided with a bottom cylinder, and the elastic part is arranged between the screw rod heightening part and the bottom cylinder.
The screw damper floating plate rail system of one embodiment of the present invention, wherein: the elastic inner cylinder body is also provided with a connecting rod which sequentially penetrates through the screw rod heightening piece, the elastic piece and the bottom cylinder.
The screw damper floating plate rail system of one embodiment of the present invention, wherein: the barrel forms a whole with screw rod height-adjusting piece, elastic component and end section of thick bamboo through bolt and the nut of locating the connecting rod in the elasticity.
The screw damper floating plate rail system of one embodiment of the present invention, wherein: the bottom cylinder is provided with an accommodating space, and a damping agent is arranged in the accommodating space.
In one embodiment of the present invention, the screw raising member includes upper and lower portions separated from each other, an external thread is formed on the upper portion, and only the upper portion is rotated when the screw raising member is rotated.
The present invention also provides a jacking apparatus of a screw damper, wherein the screw damper includes a threaded collar and an elastic inner cylinder which are screwed together, the jacking apparatus including:
the power device is provided with a driving connecting end and is used for driving the screw rod heightening piece of the screw vibration absorber to rotate;
a measuring device for measuring data including the structural height of the floating track plate;
and the control device is provided with an input end, a central processing unit and an output end, wherein the input end receives data measured by the measuring device, the data is processed by the central processing unit to obtain a control signal, and the output end controls the power output of the power device.
The jacking equipment of one embodiment of the invention is also provided with travelling wheels for the jacking equipment to move on the track.
According to the jacking equipment provided by the embodiment of the invention, the two groups of power devices are respectively corresponding to the screw shock absorbers on the two track sides.
The invention also provides a jacking and mounting method of the screw shock absorber, wherein the screw shock absorber comprises a threaded ferrule and an elastic inner cylinder which are mutually screwed, and the jacking and mounting method comprises the following steps:
s1, aligning the elastic inner cylinder body with the thread ferrule in the floating track plate and pre-tightening the elastic inner cylinder body to a preset position;
s2, arranging measuring points on the floating track plate, measuring the structural height of the track, transmitting the measured data to a central processing unit, and obtaining control information of the preset screw shock absorber through calculation;
and S3, the central processing unit sends a control signal to the power device, and the floating track plate reaches the preset structural height by screwing the screw rod height-adjusting piece.
In the jacking installation method of one embodiment of the invention, in the step S1, the pre-tightening to the preset position refers to pre-screwing the elastic inner cylinder body for half a turn of thread.
In the jacking installation method according to the embodiment of the invention, in step S2, the control information includes the number of screwing turns.
In step S3 of the lift-up installation method according to an embodiment of the present invention, the power device is a stepping motor.
(III) advantageous effects
The invention has the beneficial effects that: according to the screw shock absorber floating plate track system, the screw shock absorber capable of being steplessly heightened is arranged, so that the stepless adjustment of the height of the floating track plate structure can be realized, the defect that the shock absorber in the prior art cannot steplessly adjust the height is overcome, and the precision is improved; meanwhile, the structure of the screw thread fit in the screw shock absorber is more stable, and the defect that the gasket in the prior art can deflect in the using process is overcome; furthermore, the invention has no deflection problem, so that the structure for preventing deflection in the prior art can be omitted, and the whole structure is more simplified; furthermore, compared with the existing vibration damper, the screw vibration damping and isolating device adopted by the invention can achieve the same or better expected effect by using smaller volume, so that the material is saved, the required installation space is smaller, the application range is wider, and particularly, the screw vibration damper has smaller volume, so that the hollow space of the track plate can be reduced, the integral stress of the floating plate track system of the screw vibration damper is more uniform, and the bending rigidity and the strength of the track plate are improved; moreover, the screw shock absorber is heightened by screwing the screw rod heightening piece, so that the screw shock absorber is simple to operate and high in speed; moreover, subsequent further adjustment/maintenance thereof is easier to perform.
Drawings
FIG. 1 is a schematic top view of a screw damper floating plate track system in accordance with a first embodiment of the present invention;
FIG. 2 is a schematic top view of a screw damper floating plate track system in accordance with a second embodiment of the present invention;
FIG. 3 is a schematic top view of a screw damper floating plate track system in accordance with a third embodiment of the present invention;
FIG. 4 is a schematic diagram of a screw damper floating plate rail system according to one embodiment of the present invention prior to jacking;
FIG. 5 is a schematic structural diagram of a screw damper before jacking in a screw damper floating plate track system in accordance with one embodiment of the present invention;
FIG. 6 is a schematic diagram of a screw damper floating plate rail system after jacking in accordance with an embodiment of the present invention;
FIG. 7 is a schematic diagram of a screw damper in a screw damper floating plate track system according to an embodiment of the present invention after jacking;
FIG. 8 is a schematic view of a screw damper configuration in a screw damper floating plate track system in accordance with one embodiment of the present invention;
FIG. 9 is a schematic view of the structure of the elastic inner cylinder of the screw damper in the floating plate rail system of the screw damper according to one embodiment of the present invention;
FIG. 10 is a schematic diagram of a jacking apparatus according to an embodiment of the present invention;
fig. 11 is a schematic diagram of an application of the jacking apparatus according to an embodiment of the present invention.
[ description of reference ]
1: a floating track plate;
2: a screw damper;
21: a threaded ferrule;
22: a screw rod height adjusting piece;
23: an elastic member;
24: a damping agent;
25: a bottom cylinder;
26: a connecting rod;
27: a nut;
28: a bolt;
29: a sealing cover;
3: jacking equipment;
31: a power plant;
32: a central processing unit;
33: a measuring device;
34: a traveling wheel;
35: a drive connection end;
4: a base.
Detailed Description
For the purpose of better explaining the present invention and to facilitate understanding, the present invention will be described in detail by way of specific embodiments with reference to the accompanying drawings.
The invention mainly provides a floating slab track system capable of steplessly adjusting the jacking height of a shock absorber through threads.
Referring to fig. 1, the screw damper floating plate track system according to the first embodiment of the present invention includes a floating track plate 1 and a plurality of screw dampers 2 supporting the floating track plate 1, and the screw dampers 2 are uniformly distributed on the outer side of the track.
Wherein the screw damper 2 comprises (in connection with fig. 8 and 9):
a threaded collar 21 supporting the floating track plate 1, which has an internal thread;
and an elastic inner cylinder provided on the base 4 (see fig. 11) and having an elastic member 23 and a screw raising member 22, wherein the elastic member 23 is provided below the screw raising member 22 to elastically support the screw raising member 22, the screw raising member 22 has an external thread screwed with the internal thread of the threaded collar 21, and the screwing depth of the elastic inner cylinder in the threaded collar 21 is adjusted by rotating the screw raising member 22 or the elastic inner cylinder, thereby realizing stepless adjustment of the jack height of the floating track plate 1 by the screw damper.
Wherein, the thread ferrule 21 can be directly poured on the floating track plate 1. For example, the threaded collar 21 may be prefabricated in the floating track slab 1 or embedded in the floating track slab 1 by cast-in-place.
As can be seen from a comparison between fig. 4 and fig. 6 or fig. 5 and fig. 7, since the threaded collar 21 and the floating track slab 1 are poured together, one end of the elastic inner cylinder is supported on the foundation 4, and the screw rod height-adjusting member 22 at the other end is in threaded connection with the threaded collar 21, the purpose of stepless height adjustment of the floating track slab 1 can be achieved by rotating the screw rod height-adjusting member 22. Because the height of the vibration damper can be continuously and steplessly adjusted, on one hand, the precision is obviously improved, and further, because the precision is improved, the vibration dampers can uniformly support the floating track plate 1, so that the vibration damping effect can be obviously improved, and the bending rigidity and the strength of the floating track plate 1 can be obviously improved; on the other hand, the stepless height adjustment can be realized only by simple screwing action, so that the operation is simple, time and labor are saved, the construction is obviously improved, and the economic benefit is obvious. In addition, the structure of the stepless adjustment of the threads can simplify the whole structure and reduce the volume, so that the hollow space of the floating track plate 1 is reduced, and the elastic inner cylinder body can be screwed out and replaced when necessary, so that the maintenance is simple and convenient.
When the screw rod heightening piece is rotated to adjust the height, the elastic inner cylinder body rotates integrally, or only the screw rod heightening piece in the elastic inner cylinder body rotates, other parts in the elastic inner cylinder body do not rotate or do not rotate synchronously with the elastic inner cylinder body, or the screw rod heightening piece comprises an upper part and a lower part which are separated, the outer thread of the screw rod heightening piece is arranged on the upper part, and only the upper part rotates when the screw rod heightening piece rotates.
A screw damper floating plate rail system in accordance with a preferred embodiment of the present invention wherein: the threaded collar 21 is also provided with an external thread to enhance the strength of the connection with the floating track plate 1. For example, the outer surface of the threaded collar 21 is integrally cast with a concrete track slab, and the threads can enhance the adhesion of the threaded collar 21 to the concrete. Moreover, the structure arrangement enables the thread ferrule 21 to be replaced as required, and the structure is convenient to disassemble and assemble and quick and simple to construct.
The screw damper floating plate rail system of one embodiment of the present invention, wherein: the threads of the threaded collar 21 (including both internal and external threads) may be triangular threads, rectangular threads, trapezoidal threads (as shown in fig. 8), or buttress threads. It may also be other or special threads and the invention is not limited thereto.
The screw damper floating plate rail system of one embodiment of the present invention, wherein: the threaded collar 21 may be made of nylon, steel, synthetic fiber or engineering plastic. It may be made of any other material that meets the engineering requirements, and the present invention is not limited thereto.
The screw damper floating plate rail system of one embodiment of the present invention, wherein: the elastic member 23 includes a coil spring (as shown in fig. 8), a disc spring, a rubber-metal composite spring, or a disc-shaped rubber composite spring having predetermined rigidity and elasticity in the vertical and lateral directions. Borrow this can make it can play vertical damping effect, can play horizontal shock insulation effect again, can guarantee to float track board 1 stability and damping effect in all directions, make its range of application wider.
The screw damper floating plate rail system of one embodiment of the present invention, wherein: the screw raising member 22 has a counter-sunk screw portion for an external tool (e.g., a jacking device 3 described later) to rotate the screw raising member 22. The counterbore may be in-line, cross-shaped, square (as shown in fig. 1), or hexagonal. Therefore, the volume of the device can be reduced, the device is compact in structure and convenient to operate, and especially, the device can be operated by using intelligent operation equipment.
The screw damper floating plate rail system of one embodiment of the present invention, wherein: the screw damper 2 also has a sealing cap 29 which is screwed to the threaded collar 21 (see fig. 8). Thus, the weather resistance of the product can be enhanced, and the service life of the product can be prolonged.
Any one of the above screw damper floating plate track systems wherein: the elastic inner cylinder body is also provided with a bottom cylinder 25, and the elastic piece 23 is arranged between the screw rod heightening piece 22 and the bottom cylinder 25. Thus, the base drum 25 can be used for supporting the foundation 4, so that the floating track plate 1 is supported more stably.
The screw damper floating plate rail system of one embodiment of the present invention, wherein: the elastic inner cylinder body is also provided with a connecting rod 26 which is sequentially penetrated by the screw rod heightening piece 22, the elastic piece 23 and the bottom cylinder 25. Therefore, the vibration can be limited in the vertical direction, the side sway of the floating track plate 1 is effectively inhibited, the support is more stable, and the noise is further reduced.
The screw damper floating plate rail system of one embodiment of the present invention, wherein: the elastic inner cylinder body integrates the screw rod heightening member 22, the elastic member 23 and the bottom cylinder 25 by means of a bolt 28 and a nut 27 provided to the connecting rod 26. Borrow this not only can make the structure of shock absorber simplify, the dismouting of being convenient for etc. moreover, can also make its structure compacter, stable, further noise abatement.
A screw damper floating plate rail system in accordance with a preferred embodiment of the present invention wherein: the bottom cylinder 25 has a housing space in which a damping agent 24 (which may be, for example, a high viscosity damping fluid such as silicone oil or methyl silicone oil) is disposed, for example, by immersing a lower portion of the elastic member 23 in the damping agent. Thereby, the damping force of the shock absorber is provided by the elastic member 23 (e.g., steel spring, which provides damping force and deforms accordingly when the upper load is applied) together with the damping agent 24 (the damping force of the damping agent 24 is mainly provided by the adhesive force of the damping agent 24), the damping force mainly acts on the bottom surface of the screw heightening member 22, and the damping agent 24 can absorb vibration energy in addition to providing the damping force. In addition, it should be noted that the vibration damping performance and the stress of the track slab are incompatible, a small spring rate can obtain a more ideal vibration damping performance but leads to a severe stress condition of the track slab, a large spring rate improves the stress of the track slab but causes the vibration damping performance to be poor, and the contradiction can be alleviated to a certain extent by adding the damping agent 24.
The screw damper floating plate rail system of one embodiment of the present invention, wherein: in order to facilitate the spring positioning, spring positioning seats are arranged on the bottom end of the screw rod heightening part 22 and the bottom wall of the bottom barrel 25 (as shown in fig. 8).
Referring to fig. 2, the screw damper floating plate rail system according to the second embodiment of the present invention is different from the first embodiment in that the screw dampers 2 are uniformly distributed on the inner side of the rail.
Referring to fig. 3, a screw damper floating plate rail system according to a third embodiment of the present invention is different from the first embodiment in that the screw dampers 2 are alternately arranged on the inner and outer sides of the rail. Preferably, the distribution is uniform, and the alternating distribution in this embodiment means that six adjacent tracks form a quincunx distribution inside and outside one track. The alternate distribution of the invention can be two inside two outside, three inside three outside, or one inside two outside, two inside one outside, etc.
The screw damper 2 in the floating plate track system of the present invention can be installed by jacking according to the following method, which comprises the following steps:
s1, aligning the elastic inner cylinder body with the thread ferrule 21 in the floating track plate 1 and pre-tightening to a preset position;
s2, arranging measuring points on the floating track plate 1, measuring the structural height of the track, transmitting the measured data to the central processing unit 32, and obtaining control information of the preset screw shock absorber through calculation;
s3, the cpu 32 sends a control signal to the power device 31, and the floating track plate 1 reaches a predetermined structural height by screwing the screw height-adjusting member 22.
In the jacking installation method of one embodiment of the invention, in the step S1, the pre-tightening to the preset position refers to pre-screwing the elastic inner cylinder body for half a turn of thread.
In the jacking installation method according to the embodiment of the invention, in step S2, the control information includes the number of screwing turns.
In step S3, the power device 31 is a stepping motor.
In order to facilitate the construction and improve the efficiency and the accuracy of the construction, the present invention also provides a jacking apparatus 3 of a screw damper 2 (see fig. 10), which includes:
a power unit 31 having a driving connection end 35 for driving the rotation of the screw heightening member 22 of the screw damper 2;
a measuring device 33 for measuring data including the structural height of the floating track plate 1;
and the control device is provided with an input end, a central processing unit 32 and an output end, wherein the input end receives the data measured by the measuring device 33, the data is processed by the central processing unit 32 to obtain a control signal, and the output end controls the power output of the power device 31.
The jacking equipment 3 of one embodiment of the invention is also provided with walking wheels 34 for the jacking equipment 3 to move on the track.
In the jacking equipment 3 of one embodiment of the invention, two groups of power devices 31 are provided and respectively correspond to the screw dampers 2 on two track sides.
In a specific application, the spring and the damping agent 24 can be selected according to corresponding design parameters. The optimal damping ratio is achieved by adjusting the material of the spring and the dosage and the type of the damping agent 24, when the floating track plate 1 is excited by an excitation force to vibrate, the screw vibration absorber 2 can generate a vibration inertia force to counteract the floating track plate 1 per se to offset the input excitation force, so as to reduce the vibration reaction of the floating track plate 1. Meanwhile, due to the damping effect in the shock absorber, the structural vibration can be weakened quickly, the fatigue damage of the floating track plate 1 caused by frequent vibration is avoided, and the service life of the floating track plate 1 is prolonged greatly.
In a preferred embodiment of the present invention, before installation, the threaded collar 21 is first poured into the floating track slab 1, after it is solidified, the jacking strength is reached, then according to the selected type of the vibration damper, the elastic inner cylinder is aligned to the threaded collar 21 in the floating track slab 1, the elastic inner cylinder is pre-screwed by half a turn of threads, then a measuring point is arranged on the floating track slab 1, the matched jacking device 3 is operated, the structural height of the track is measured, the measured data is transmitted to the central processing unit 32, the number of screwing turns that each vibration damper needs to be adjusted is calculated by the central processing unit 32, then the number of screwing turns is sent to the stepping motor of the power device 31, and the floating track slab 1 is jacked by the jacking force between the threads through the rotation of the stepping motor, so that the floating track slab 1 reaches the specified height.
In summary, in the floating plate track system of the screw damper, the screw rod heightening piece of the elastic inner cylinder body in the screw damper is in threaded connection with the threaded ferrule, so that the floating track plate can quickly and accurately finish horizontal leveling and jacking actions, and simple, quick and accurate stepless heightening is realized. And need not outer end section of thick bamboo and gasket among the prior art, easy operation can also utilize intelligent jacking equipment construction, uses manpower sparingly and engineering time, and the construction precision is higher, has overcome traditional floating plate rail system and has increaseed the complex operation of rising, the accuracy is poor, overhauls difficult, shortcoming with high costs, and its economic benefits and engineering benefit are very showing, have wide popularization and application prospect. And because the structure is simple and compact, the volume is small, the floating track plate can be densely distributed, the stress of the floating track plate is more uniformly dispersed, the vibration reduction effect is better, and the screw vibration absorber can be suitable for floating plates with various thicknesses. Moreover, the damping device can provide three-dimensional damping, is suitable for places such as building bases, equipment foundations and the like, and can obtain good damping effect.
Claims (10)
1. A screw damper floating plate track system comprising a floating track plate and a plurality of dampers supporting the floating track plate, wherein the dampers comprise screw dampers comprising:
a threaded collar supporting a floating track plate having internal threads;
the elastic inner cylinder body is arranged on the foundation and is provided with an elastic part and a screw rod heightening part, the elastic part is arranged below the screw rod heightening part and elastically supports the screw rod heightening part, the screw rod heightening part is provided with an external thread screwed with the internal thread of the thread ferrule, and the screw rod heightening part is provided with a counter-bore type screwing part for an external tool to rotate the screw rod heightening part;
the elastic inner cylinder body is also provided with a bottom cylinder, and the elastic part is arranged between the screw rod heightening part and the bottom cylinder; the elastic inner cylinder body is also provided with a connecting rod which is sequentially penetrated by the screw rod heightening piece, the elastic piece and the bottom cylinder; the elastic inner cylinder body forms the screw rod height-adjusting piece, the elastic piece and the bottom cylinder into a whole through a bolt and a nut which are arranged on the connecting rod;
the screwing depth of the elastic inner cylinder in the threaded ferrule is adjusted by rotating the screw rod heightening piece or the elastic inner cylinder, so that the stepless adjustment of the top support height of the floating track plate by the screw vibration absorber is realized;
the thread ferrule is prefabricated on the floating track plate and is also provided with rectangular or trapezoidal external threads so as to enhance the connection strength with the floating track plate and facilitate replacement of the thread ferrule.
2. The screw damper floating plate rail system of claim 1, wherein: the internal thread and the external thread of the thread ferrule are triangular threads, rectangular threads, trapezoidal threads or sawtooth threads; the thread ferrule is made of nylon, steel, synthetic fiber or engineering plastic.
3. The screw damper floating plate rail system of claim 1, wherein: the counter bore is a straight line shape, a cross shape, a square shape or a hexagonal shape.
4. The screw damper floating plate rail system of claim 1, wherein: the screw shock absorber is also provided with a sealing cover which is in threaded connection with the threaded ferrule; the screw vibration absorbers are uniformly arranged on the outer side, the inner side or the inner side and the outer side of the steel rail in an alternating way.
5. The screw damper floating plate rail system of claim 1, wherein: the bottom cylinder is provided with an accommodating space, and a damping agent is arranged in the accommodating space.
6. Jacking apparatus for a screw damper floating deck track system as claimed in any one of claims 1 to 5, comprising:
two groups of power devices respectively correspond to the screw vibration absorbers on the two track sides; the screw rod lifting device is provided with a driving connecting end which is used for driving the screw rod lifting piece of the screw vibration absorber to rotate, and the driving connecting end integrally moves up and down relative to the lifting device body;
a measuring device for measuring data including the structural height of the floating track plate;
the control device is provided with an input end, a central processing unit and an output end, wherein the input end receives data measured by the measuring device, the data is processed by the central processing unit to obtain a control signal, and the output end controls the power output of the power device; and the lifting device is also provided with a travelling wheel for moving on the track.
7. A jacking installation method for the screw damper floating slab track system as claimed in any one of claims 1 to 5, wherein the installation of the screw damper floating slab track system is performed using jacking equipment, wherein the jacking equipment comprises:
two groups of power devices respectively correspond to the screw vibration absorbers on the two track sides; the screw rod lifting device is provided with a driving connecting end which is used for driving the screw rod lifting piece of the screw vibration absorber to rotate, and the driving connecting end integrally moves up and down relative to the lifting device body;
a measuring device for measuring data including the structural height of the floating track plate;
the control device is provided with an input end, a central processing unit and an output end, wherein the input end receives data measured by the measuring device, the data is processed by the central processing unit to obtain a control signal, and the output end controls the power output of the power device; the lifting device is also provided with travelling wheels for moving the lifting device on the track;
the jacking installation method comprises the following steps:
s1, aligning the elastic inner cylinder body with the thread ferrule in the floating track plate and pre-tightening the elastic inner cylinder body to a preset position;
s2, arranging measuring points on the floating track plate, measuring the structural height of the track, transmitting the measured data to a central processing unit, and obtaining control information of the preset screw shock absorber through calculation;
s3, the central processor sends a control signal to the power device, and the floating track board reaches the preset structural height by screwing the elastic inner cylinder.
8. The jacking installation method of claim 7, wherein: in step S1, the pre-tightening to the predetermined position means that the elastic inner cylinder is pre-threaded by half a turn.
9. The jacking installation method of claim 7, wherein: in step S2, the control information includes the number of turns of screwing.
10. The jacking installation method of claim 7, wherein: in step S3, the power unit is a stepper motor.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610356938.6A CN105821722B (en) | 2016-05-27 | 2016-05-27 | Screw shock absorber floating plate track system and jacking equipment and jacking method thereof |
| PCT/CN2017/085525 WO2017202301A1 (en) | 2016-05-27 | 2017-05-23 | Screw damper and floating slab track system, and jacking device thereof and jacking method therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610356938.6A CN105821722B (en) | 2016-05-27 | 2016-05-27 | Screw shock absorber floating plate track system and jacking equipment and jacking method thereof |
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| Publication Number | Publication Date |
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| CN105821722A CN105821722A (en) | 2016-08-03 |
| CN105821722B true CN105821722B (en) | 2020-02-07 |
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| CN201610356938.6A Active CN105821722B (en) | 2016-05-27 | 2016-05-27 | Screw shock absorber floating plate track system and jacking equipment and jacking method thereof |
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| Country | Link |
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| CN (1) | CN105821722B (en) |
| WO (1) | WO2017202301A1 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105821722B (en) * | 2016-05-27 | 2020-02-07 | 江苏远兴环保科技有限公司 | Screw shock absorber floating plate track system and jacking equipment and jacking method thereof |
| CN106368085B (en) * | 2016-09-26 | 2018-08-17 | 上海铁院轨道交通科技有限公司 | Energy-absorbing and vibration-damping device of track structure |
| CN108035728B (en) * | 2017-11-22 | 2019-07-23 | 天津大学 | Simulate the characteristics of surrounding rock simulator of TBM construction operation real working condition experimental bench |
| CN108059108B (en) * | 2017-12-30 | 2023-09-22 | 广东技术师范大学 | Jack type moving device and method |
| CN108824102A (en) * | 2018-09-02 | 2018-11-16 | 中国船舶重工集团公司第七研究所 | Combined rubber vibration isolator and its installation method for floating plate track |
| CN110485213A (en) * | 2019-07-29 | 2019-11-22 | 同济大学 | A kind of fixed device of floating plate track supporting structure |
| CN111827020B (en) * | 2020-06-29 | 2021-11-09 | 南京华创交通设备有限公司 | Vibration isolator with online failure monitoring device |
| CN112832066B (en) * | 2021-03-04 | 2024-04-12 | 羿射旭减隔震张家口有限公司 | Vibration isolator for track floating plate |
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| CN105821722B (en) * | 2016-05-27 | 2020-02-07 | 江苏远兴环保科技有限公司 | Screw shock absorber floating plate track system and jacking equipment and jacking method thereof |
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Also Published As
| Publication number | Publication date |
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| WO2017202301A1 (en) | 2017-11-30 |
| CN105821722A (en) | 2016-08-03 |
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