CN112411273B - Spring vibration isolator and construction process - Google Patents
Spring vibration isolator and construction process Download PDFInfo
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- CN112411273B CN112411273B CN201910776846.7A CN201910776846A CN112411273B CN 112411273 B CN112411273 B CN 112411273B CN 201910776846 A CN201910776846 A CN 201910776846A CN 112411273 B CN112411273 B CN 112411273B
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- 238000010276 construction Methods 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 14
- 230000008569 process Effects 0.000 claims abstract description 14
- 229910000831 Steel Inorganic materials 0.000 claims description 12
- 239000010959 steel Substances 0.000 claims description 12
- 238000004873 anchoring Methods 0.000 claims description 10
- 238000009434 installation Methods 0.000 claims description 9
- 210000000078 claw Anatomy 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 3
- 238000005266 casting Methods 0.000 claims description 3
- 238000013016 damping Methods 0.000 abstract description 8
- 239000002994 raw material Substances 0.000 abstract description 2
- 238000007667 floating Methods 0.000 description 23
- 230000009467 reduction Effects 0.000 description 17
- 229920001971 elastomer Polymers 0.000 description 8
- 238000002955 isolation Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000008094 contradictory effect Effects 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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
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Abstract
The invention provides a spring vibration isolator and a construction process, wherein the spring vibration isolator comprises an outer sleeve and an elastic element, the outer sleeve comprises a cylinder body, the elastic element is arranged in the cylinder body, a jacking stop block is arranged at the upper part of the cylinder body, a height-adjusting locking structure is connected to a position, close to the lower part, in the cylinder body, and the height-adjusting locking structure plays roles in height adjustment and locking. The spring vibration isolator of the invention redesigns the structure, changes the lower supporting stop block fixedly arranged in the prior art into a height-adjustable locking structure capable of being arbitrarily adjusted, omits a height-adjustable gasket at the top of the elastic element, saves raw materials compared with the prior art, simplifies the structure, and forms a vibration-damping sleeve capable of being arbitrarily adjusted, and has wide application range. The embedded bolt sleeve is used for replacing the original jacking stop block, so that the structure is simplified, the combination strength of the cylinder body and the concrete ballast bed is enhanced, and the working stability of the spring vibration isolator is ensured.
Description
Technical Field
The invention relates to the technical field of rail transit, in particular to a spring vibration isolator and a construction process.
Background
In urban rail train operation, due to interaction force between wheel-rail systems, vibration and noise are inevitably generated, and the life quality of surrounding residents is seriously influenced. In order to inhibit the propagation of vibrations along the path between the rail and the ground, a floating slab track with elastic vibration isolation units may be used in both propagation paths. The floating slab track utilizes a concrete track bed board with certain mass and rigidity to carry out inertial motion on an elastomer so as to isolate and attenuate vibration generated by train operation. Compared with other vibration reduction track structures, the floating slab track vibration isolation effect is thorough, the technical advantage is obvious, an effective technical means is provided for the vibration noise environment control of urban rail transit, and the floating slab track vibration isolation device has wide application prospect in the sections with higher vibration reduction and special vibration reduction in urban rail transit and is one of the main forms of higher vibration reduction measures.
The elastic vibration isolation units in the floating slab track can be divided into a steel spring vibration isolator and a rubber spring vibration isolator according to different materials of springs, and corresponding ballast bed structures are respectively called a steel spring floating slab and a rubber spring floating slab. The steel spring floating plate can be classified into a light steel spring and a heavy liquid damping steel spring according to the types of the steel springs used. The rubber spring floating plate and the light steel spring floating plate are generally high-grade vibration reduction structure ballast beds, and the heavy liquid damping steel spring floating plate is a special vibration reduction structure ballast bed.
Wherein the rubber spring vibration reduction unit is a key vibration reduction part of the floating plate structure. At present, in the installation process of a commonly used rubber spring vibration reduction unit, a ballast bed plate needs to be repeatedly lifted to a certain height for many times, and height adjusting gaskets with different thicknesses are added on the top surface of the vibration reduction elastic unit so as to meet the aim that the whole height of the ballast bed plate needs to be kept consistent. Because the service life of the road bed board is longer, and the service life of the vibration reduction unit is shorter, the vibration reduction unit must be replaced after the service life of the vibration reduction unit expires.
Taking a floating slab structure common in the prior art as an example, a spring vibration isolator (also called a spring assembly) is the only vibration reduction unit of a spring floating slab ballast bed, and the main components of the spring vibration isolator are composed of an outer sleeve (hereinafter referred to as a sleeve), a vibration reduction unit and a height adjusting device. During installation, the spring assembly is placed in the sleeve, then the triangular cushion block (the height adjusting device) is placed on the spring assembly along the notch direction, the lower end of the jacking device (similar to a puller structure) is placed on the spring, three claws on the upper end hook three rib plates on the upper portion of the sleeve, the track bed plate is jacked, after the upper plane of the triangular cushion block is lower than the lower rib plates, the sleeve rotates for 60 degrees, the jacking device is removed, the lower rib plates of the sleeve are pressed on the spring, the track bed plate is suspended, and a mass-spring system is formed. In the construction process of the spring floating plate, the jacking process is the most critical one. However, whether the steel spring floating plate or the rubber spring floating plate is lifted, the lifting needs to be carried out for multiple times, and the lifting needs to be completed for 3 to 4 wheels at maximum, so that the construction efficiency is low, the replacement and maintenance are troublesome, and the maintenance cost is high.
Disclosure of Invention
In view of the above, the invention aims to provide a spring vibration isolator and a construction process, so as to solve the problems of low construction efficiency and troublesome replacement and maintenance caused by the complex structure and the need of arranging height-adjusting base plates with different thicknesses of the spring vibration isolator in the prior art.
In order to achieve the above purpose, the technical scheme of the invention is realized as follows:
The utility model provides a spring vibration isolator, includes outer sleeve and elastic element, the outer sleeve includes the barrel, elastic element installs inside the barrel the upper portion of barrel sets up the jacking dog, the position connection that is close to the lower part in the barrel is increaseed locking structure, increaseed locking structure plays increaseing and locking effect.
Further, the height-adjusting locking structure is arranged to be a tooth-shaped fixing structure, the height-adjusting locking structure comprises a supporting block and a tooth-shaped block, one sides of the supporting block and the tooth-shaped block, which are opposite to each other, are all arranged to be a screw tooth structure, and the supporting block is arranged to be an L-shaped positioning block structure.
Further, the tooth-shaped block is fixed on the cylinder body, one side of the tooth-shaped block facing the inside of the cylinder body is attached to the supporting block, one side of the tooth-shaped block facing the supporting block is set to be of a screw tooth structure, one side of the supporting block facing the tooth-shaped block is also set to be of a screw tooth structure, and the supporting block comprises a first baffle and a second baffle.
Further, the supporting shoe is laminated with the barrel inner wall, the profile of tooth piece sets up in one side that the supporting shoe deviates from the barrel inner wall, one side that the supporting shoe deviates from the barrel inner wall sets up to the screw thread structure, one side that the profile of tooth piece was towards the supporting shoe also sets up to the screw thread structure, the supporting shoe includes first baffle and second baffle.
Further, the first baffle is parallel to the barrel wall, the second baffle is perpendicular to the first baffle and extends towards the direction of the central axis of the barrel, the second baffle is used for pressing the elastic element, and one side of the first baffle, which is away from the second baffle, is provided with tiny spaced screw teeth with angles, and the screw teeth are matched with the screw teeth of the tooth-shaped block.
Further, the first baffle is parallel to the barrel wall, the second baffle is perpendicular to the first baffle and extends towards the direction of the central axis of the barrel, the second baffle is used for pressing the elastic element, and small-interval screw teeth with angles are arranged on one side of the first baffle, facing the second baffle, and are matched with the screw teeth of the tooth-shaped block.
Further, the jacking stop block is arranged as an anchor bolt, the anchor bolt penetrates through the cylinder body to be fixedly connected with the concrete road bed, and one end of the anchor bolt, which is exposed in the cylinder body, forms the jacking stop block.
Further, the middle part of the outer wall of the cylinder body is provided with a fixing piece, the fixing piece is of a strip-shaped and plate-shaped structure, and the fixing piece is provided with a concave-convex positioning structure for being fixed and bundled with reinforcing steel bars inside the concrete.
Further, the cylinder body, the supporting block and the toothed block are connected in the horizontal direction by adopting an anchor bolt to penetrate through the cylinder body from the inside of the outer sleeve and fixedly connected with an embedded sleeve in the concrete ballast bed, or by adopting a threaded fastener to penetrate through the supporting block and the toothed block from the inside of the outer sleeve and be screwed into the cylinder body, or by adopting a threaded fastener to penetrate through the toothed block and the supporting block from the outside of the outer sleeve and be screwed into the inside of the outer sleeve, and the inner part of the outer sleeve is screwed and fixed by the fastener.
Compared with the prior art, the spring vibration isolator provided by the invention has the following advantages:
The spring vibration isolator of the invention redesigns the structure, changes the lower supporting stop block fixedly arranged in the prior art into a height-adjustable locking structure capable of being arbitrarily adjusted, omits a height-adjustable gasket at the top of the elastic element, saves raw materials compared with the prior art, simplifies the structure, and forms a vibration-damping sleeve capable of being arbitrarily adjusted, and has wide application range. The embedded bolt sleeve is used for replacing the original jacking stop block, so that the structure is simplified, the combination strength of the cylinder body and the concrete ballast bed is enhanced, and the working stability of the spring vibration isolator is ensured.
The invention also provides a construction process of the spring vibration isolator, which comprises the following steps of:
(1) Pouring a ballast bed plate: fixing the processed outer sleeve with the steel bars, installing embedded bolt sleeves, pouring concrete, and finishing the forming of the road bed board;
(2) Placing the elastic element into the outer sleeve, screwing the upper anchoring piece into the upper bolt sleeve to form a jacking stop block;
(3) The pressing block at the lower end of the jacking device is placed on the elastic element, three clamping claws at the upper part of the jacking device hook the jacking stop block at the upper part, the lower end of the elastic element is continuously pressed, the thickness of the elastic element is reduced to generate a reaction force, and the reaction force pushes the supporting point to lift upwards together with the cylinder body and the peripheral ballast bed plate;
(4) When the track bed board is heightened to a proper height, a supporting block with a heightening and locking structure is placed on the upper part of the elastic element, wherein a second baffle plate of the supporting block is pressed on the upper end surface of the elastic element, and screw teeth on the first baffle plate are tightly matched with screw teeth on the cylinder wall, and after the completion, the track nails are gradually fastened in batches until the L-shaped baffle block is completely fastened;
(5) And taking out the jacking device, and installing an outer sleeve cover plate to finish the installation.
The construction process of the spring vibration isolator has the same advantages as those of the spring vibration isolator compared with the prior art, and the construction process is not repeated here.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:
fig. 1 is a schematic view of a spring vibration isolator according to a first embodiment of the present invention;
Fig. 2 is a cross-sectional view of a spring vibration isolator according to an embodiment of the present invention;
FIG. 3 is an enlarged view of a portion of the portion A of FIG. 2;
fig. 4 is a schematic structural diagram of a spring vibration isolator according to a second embodiment of the present invention;
Fig. 5 is a cross-sectional view of a spring vibration isolator according to a second embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a connection mode of the height-adjusting locking structure according to the embodiment of the present invention;
fig. 7 is a schematic structural diagram of a jacking device according to an embodiment of the invention.
Reference numerals illustrate:
1-outer sleeve, 2-barrel, 3-boss, 4-jacking block, 5-elastic element, 6-boss, 7-connection, 8-jaw, 9-height adjustment locking structure, 10-support block, 11-tooth block, 12-first baffle, 13-second baffle, 14-fastener, 15-positioning structure, 16-anchor bolt, 17-jacking device, 18-press block, 19-limit flange, 20-leveling washer, 21-first mounting hole, 22-threaded fastener
Detailed Description
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other. The description of "first," "second," etc. in embodiments of the present invention is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base the implementation on the basis of those skilled in the art, and when the technical solutions are contradictory or cannot be implemented, it should be considered that the combination of the technical solutions does not exist and is not within the scope of protection claimed by the present invention.
The invention will be described in detail below with reference to the drawings in connection with embodiments.
Example 1
As shown in fig. 1 to 3, fig. 6 and 7, the present embodiment provides a spring vibration isolator, which comprises an outer sleeve 1 and an elastic element 5, wherein the outer sleeve 1 comprises a cylinder 2 and a boss 3, the cylinder 2 is arranged to be a cylindrical structure, the periphery of the cylinder 2 and a ballast bed are cast into an integral structure, and the connection stability of the spring vibration isolator and the ballast bed is increased. The space formed inside the cylinder 2 is used for placing the elastic element 5, so as to achieve the purpose of vibration isolation. The boss 3 is arranged at the bottom of the cylinder 2, extends in a direction far away from the central axis of the cylinder 2, and is used for reinforcing the bonding strength between the cylinder 2 and the peripheral concrete.
The upper part of the cylinder body 2 is provided with a jacking stop block 4, the position, close to the lower part, in the cylinder body 2 is provided with a height-adjusting locking structure 9, and the height-adjusting locking structure 9 is provided with a tooth-shaped fixing structure. Specifically, the height-adjusting locking structure 9 comprises a supporting block 10 and a tooth-shaped block 11, and two opposite sides of the supporting block 10 and the tooth-shaped block 11 are respectively provided with a screw structure. Further, the tooth-shaped block 11 is fixed on the cylinder, one side of the tooth-shaped block 11 facing the inside of the cylinder is attached to the supporting block 10, one side of the tooth-shaped block 11 facing the supporting block 10 is set to be in a screw structure, and one side of the supporting block 10 facing the tooth-shaped block 11 is also set to be in a screw structure. After the elastic element 5 is compressed in place, the supporting block 10 is placed on the top of the elastic element 5, the supporting block 10 is matched with the screw teeth of the tooth-shaped block 11, the lateral fastening spike is screwed down, and the fastening of the cylinder and the heightening locking structure 9 is completed. The embodiment can realize random height adjustment by adjusting the upper and lower relative positions of the supporting block 10 and the tooth-shaped block 11.
Further, the supporting block 10 is configured as an L-shaped positioning block structure, and is divided into a first baffle 12 and a second baffle 13, the first baffle 12 is parallel to the wall of the cylinder 2, the second baffle 13 is perpendicular to the first baffle 12 and extends towards the central axis of the cylinder 2, and the second baffle 13 is used for pressing the elastic element 5. The first baffle 12 deviates from the screw thread of angle of second baffle 13 one side and is provided with tiny interval, cooperatees with the screw thread of profile of tooth piece 11, increases the stability of being connected of supporting shoe and profile of tooth piece in the height-adjusting locking structure 9, prevents to appear because ballast gravity is too big, leads to the phenomenon of ballast and height-adjusting locking structure 9 separation.
Further, a first mounting hole 21 is formed in the first baffle 12 of the supporting block 10, and an anchor bolt 16 is adopted to penetrate through the first mounting hole 21 of the supporting block 10, the tooth-shaped block 11 and the embedded bolt sleeve in the cylinder 2 and the concrete ballast bed in the horizontal direction to be fixedly connected, so that the height-adjusting locking structure 9 is fixedly connected with the cylinder 2 and the ballast bed. The first mounting holes 21 are provided as waist-shaped holes, which facilitate the mounting of the anchors when adjusting different floating heights of the damping sleeve.
Preferably, the threaded fastener 22 can also be screwed into the cylinder 2 from the inside of the outer sleeve 1 through the first mounting hole of the supporting block 10 and the tooth-shaped block 11, so as to realize the fixed connection of the height-adjusting locking structure 9 and the cylinder 2.
Preferably, the threaded fastener 22 is screwed into the outer sleeve 1 from the outside of the outer sleeve 1 through the toothed block 11 and the supporting block 10, and is fastened and fixed in the outer sleeve 1 by a fastener such as a nut. Further, the periphery of the external threaded fastener of the outer sleeve 1 is welded, so that stable connection of the threaded fastener and the cylinder body as well as the heightening locking structure is ensured.
Preferably, the tooth-shaped block 11 and the cylinder body are integrally arranged, and the screw tooth structure on the tooth-shaped block 11 is arranged on the inner wall of the cylinder body 2, so that the supporting block 10 is tightly and stably connected with the cylinder body 2.
Preferably, a through hole or a groove may be formed in the side wall of the cylinder 2, and the tooth-shaped block 11 is mounted in the through hole or the groove, so that the tooth-shaped block 11 forms a structure protruding to the outside of the cylinder 2.
Further, a second mounting hole matched with the first mounting hole on the first baffle plate 12 is also formed in the tooth-shaped block 11, and the anchoring bolt 16 extends outwards through the second mounting hole and the first mounting hole and mainly plays a role in fixing the height-adjusting locking structure 9 horizontally and laterally. When the height-adjusting locking structure 9 is locked, horizontal lateral force is inevitably generated, the lower fixing block 16 prevents the loosening of the height-adjusting locking structure, and the normal operation of the whole device of the spring vibration isolator is ensured.
The height-adjusting locking structure 9 has the functions of height adjustment and locking, so that the spring vibration isolator can be formed into a structure capable of being adjusted at will, the height of the floating plate can be adjusted according to construction requirements, the cylinder 2 and the L-shaped positioning block are respectively provided with fine-spaced screw teeth with angles, after the elastic element is compressed in place, the screw teeth on the two sides of the cylinder and the L-shaped positioning block are matched, lateral fastening spikes are screwed, and fastening of the cylinder and the L-shaped positioning block is completed.
Preferably, the bolt sleeve is embedded in the ballast bed casting concrete, the anchoring bolt 16 is inserted into the embedded bolt sleeve to form a lower supporting stop block, the structure of the cylinder is simplified, the anchoring bolt 16 is screwed into the embedded bolt sleeve during installation, and the connection stability between the cylinder 2 and the concrete ballast bed and the connection stability between the heightening locking structure and the cylinder are improved.
Further, the elastic element 5 is provided as a component with a certain flexibility, such as rubber or a spring, for providing a flexible stiffness.
Furthermore, a limit flange 19 is sleeved outside the elastic element 5, and the limit flange 19 is wrapped on the bottom and the side wall of the elastic element 5, so that the elastic element 5 is protected to a certain extent. And a leveling gasket 20 is arranged at the lower part of the limit flange 19 to correct the unevenness of the roadbed surface, so that the spring vibration isolator is ensured to be in a flat environment, and the working stability of the spring vibration isolator is improved.
Preferably, in this embodiment, the upper stop blocks are uniformly arranged in a plurality of positions along the circumferential direction and located on the same plane, and the lower support stop blocks are also uniformly arranged in a plurality of positions along the circumferential direction and located on the same plane, and the upper stop blocks and the lower support stop blocks are mutually staggered.
Further, a fixing piece 14 is arranged in the middle of the outer wall of the cylinder 2, the fixing piece 14 is of a strip-shaped and plate-shaped structure, a concave-convex positioning structure 15 is arranged on the fixing piece 14 and used for being fixed and bundled with reinforcing steel bars in concrete, and connection stability between the cylinder and a concrete ballast bed is further improved.
Further, the bottom of the outer wall of the cylinder body 2 is also provided with the rib plates, the rib plates connect the cylinder body 2 with the boss 3, on one hand, the connection stability of the cylinder body 2 and the boss 3 is increased, the spring vibration isolator is reinforced, the whole cylinder body is more stable, and on the other hand, the connection stability of the spring vibration isolator and the road bed board is increased.
Preferably, in this embodiment, the jacking stop block 4 on the upper portion may be set as an anchor bolt, the anchor bolt passes through the cylinder 2 and is fixedly connected with the concrete pavement bed, and the end of the anchor bolt exposed inside the cylinder forms the jacking stop block, so that the fixing of the upper portion of the jacking device 17 is facilitated, and the step of jacking operation is simplified. When in installation, the pressing block 18 at the lower end of the jacking device 17 is placed on the elastic element 5, the three clamping claws 8 at the upper part of the jacking device 17 hook one end of the anchor bolt positioned in the cylinder body, the lower end of the elastic element 5 is continuously pressed, the thickness is reduced to generate a reaction force, and the reaction force pushes the supporting point to lift upwards together with the cylinder body 2 and the peripheral ballast bed plates, so that the ballast bed plate floats, and the aim of higher vibration reduction is fulfilled. The jacking stop block is not fixedly arranged at a position, close to the upper part, in the cylinder body, and simultaneously the jacking stop block is replaced by the anchor bolt, so that the combination strength of the cylinder body and the concrete ballast bed is enhanced while the structure is simplified, and the working stability of the spring vibration isolator is ensured.
The spring vibration isolator that this embodiment provided redesigns to the structure, changes the fixed lower part that sets up among the prior art support dog into the locking structure that adjusts that can adjust height wantonly, has omitted the gasket that adjusts height at elastic element top, compares with prior art and saves raw and other materials, simplifies the structure, has formed a vibration damping sleeve that can adjust height wantonly, and application range is wide.
Example 2
As shown in fig. 4 to 7, this embodiment improves the specific structure of the height adjustment locking structure 9 on the basis of embodiment 1. The height-adjusting locking structure 9 is arranged to be a tooth-shaped fixing structure. Specifically, the height-adjusting locking structure 9 comprises a supporting block 10 and a tooth-shaped block 11, wherein the supporting block 10 is attached to the inner wall of the cylinder, and the tooth-shaped block 11 is arranged on one side, deviating from the inner wall of the cylinder, of the supporting block 10. One side of the supporting block 10, which is away from the inner wall of the cylinder, is provided with a screw structure, and one side of the tooth-shaped block 11, which is towards the supporting block 10, is also provided with a screw structure. After the elastic element 5 is compressed in place, the supporting block 10 is placed on the top of the elastic element 5, the supporting block 10 is matched with the screw teeth of the tooth-shaped block 11, the lateral fastening spike is screwed down, and the fastening of the cylinder and the heightening locking structure 9 is completed.
Preferably, the outer wall of the cylinder body 2 can be provided with the protruding part 6, and the protruding part 6 protrudes outwards, so that the connection stability of the cylinder body and the concrete track bed is improved.
Further, the supporting block 10 is configured as an L-shaped positioning block structure, and is divided into a first baffle 12 and a second baffle 13, the first baffle 12 is parallel to the wall of the cylinder 2, the second baffle 13 is perpendicular to the first baffle 12 and extends towards the central axis of the cylinder 2, and the second baffle 13 is used for pressing the elastic element 5. The first baffle 12 is provided with tiny spaced screw teeth with angles towards one side of the second baffle 13, and the screw teeth are matched with the screw teeth of the toothed block 11, so that the connection stability of the supporting block and the toothed block in the height-adjusting locking structure 9 is improved, and the phenomenon that the ballast bed is separated from the height-adjusting locking structure 9 due to overlarge gravity of the ballast bed is prevented.
Further, a first mounting hole 21 is formed in the first baffle 12 of the supporting block 10, and an anchor bolt 16 is adopted to penetrate through the toothed block 11, the first mounting hole 21 of the supporting block 10 and the embedded bolt sleeve in the cylinder 2 and the concrete ballast bed in the horizontal direction, so that the height-adjusting locking structure 9 is fixedly connected with the cylinder 2 and the ballast bed. The first mounting holes 21 are provided as waist-shaped holes, which facilitate the mounting of the anchors when adjusting different floating heights of the damping sleeve.
Preferably, the threaded fastener 22 can also be directly screwed into the wall of the cylinder 2 through the first mounting hole of the supporting block 10 and the tooth-shaped block 11, so as to realize the fixed connection of the height-adjusting locking structure 9 and the cylinder 2.
Preferably, the threaded fastener 22 is screwed into the cylinder 2 from the inside of the outer sleeve 1 through the toothed block 11 and the support block 10, or the threaded fastener is screwed into the inside of the outer sleeve 1 from the outside of the outer sleeve 1 through the toothed block 11 and the support block 10, and is fastened by the fastener inside the outer sleeve 1. Further, the periphery of the external threaded fastener of the outer sleeve 1 is welded, so that stable connection of the threaded fastener and the cylinder body as well as the heightening locking structure is ensured.
Preferably, a second mounting hole matched with the first mounting hole on the first baffle plate 12 is also formed on the tooth-shaped block 11, and the anchoring bolt 16 extends outwards through the first mounting hole and the second mounting hole and mainly plays a role in fixing the height-adjusting locking structure 9 horizontally and laterally. When the height-adjusting locking structure 9 is locked, horizontal lateral force is inevitably generated, the loosening of the height-adjusting locking structure is prevented through the anchoring bolt 16, and the normal operation of the whole device of the spring vibration isolator is ensured.
The height-adjusting locking structure 9 has the functions of height adjustment and locking, so that the spring vibration isolator can be formed into a structure capable of being adjusted at will, the height of the floating plate can be adjusted according to construction requirements, the cylinder 2 and the L-shaped positioning block are respectively provided with fine-spaced screw teeth with angles, after the elastic element is compressed in place, the screw teeth on the two sides of the cylinder and the L-shaped positioning block are matched, lateral fastening spikes are screwed, and fastening of the cylinder and the L-shaped positioning block is completed.
Preferably, the bolt sleeve is embedded in the ballast bed casting concrete, the anchoring bolt 16 is inserted into the embedded bolt sleeve to form a lower supporting stop block, the structure of the cylinder is simplified, the anchoring bolt is screwed into the embedded bolt sleeve during installation, and the connection stability between the cylinder 2 and the concrete ballast bed and the connection stability between the heightening locking structure and the cylinder are improved.
Preferably, in this embodiment, a plurality of jacking stoppers are uniformly arranged along a circumferential direction and located on the same plane, and a plurality of lower support stoppers are also uniformly arranged along a circumferential direction and located on the same plane, and the jacking stoppers and the lower support stoppers are staggered with each other.
Preferably, in this embodiment, the jacking stop block 4 on the upper portion may be set as an anchor bolt, the anchor bolt passes through the cylinder 2 and is fixedly connected with the concrete pavement bed, and the end of the anchor bolt exposed inside the cylinder forms the jacking stop block, so that the fixing of the upper portion of the jacking device 17 is facilitated, and the step of jacking operation is simplified. When in installation, the pressing block 18 at the lower end of the jacking device 17 is placed on the elastic element 5, the three clamping claws 8 at the upper part of the jacking device 17 hook one end of the anchor bolt positioned in the cylinder body, the lower end of the elastic element 5 is continuously pressed, the thickness is reduced to generate a reaction force, and the reaction force pushes the supporting point to lift upwards together with the cylinder body 2 and the peripheral ballast bed plates, so that the ballast bed plate floats, and the aim of higher vibration reduction is fulfilled. The jacking stop block is not fixedly arranged at a position, close to the upper part, in the cylinder body, and simultaneously the jacking stop block is replaced by the anchor bolt, so that the combination strength of the cylinder body and the concrete ballast bed is enhanced while the structure is simplified, and the working stability of the spring vibration isolator is ensured.
There is also provided, as part of an embodiment of the present invention, a ballast bed vibration damping structure including a floating track bed plate and the spring vibration isolator described above, the floating track bed plate being resiliently supported on the spring vibration isolator.
Example 3
The embodiment provides a construction process of the spring vibration isolator, which specifically comprises the following steps:
(1) Pouring a ballast bed plate: fixing the processed outer sleeve 1 with the steel bars, installing embedded bolt sleeves, pouring concrete, and finishing the forming of the road bed board;
(2) The elastic element 5 is placed in the outer sleeve 1, and the upper anchoring bolt is screwed into the embedded bolt sleeve at the upper part of the concrete pavement bed to form a jacking stop block.
The pressing block 18 at the lower end of the jacking device 17 is placed on the elastic element 5, the three clamping claws 8 at the upper part of the jacking device 17 hook the jacking stop block at the upper part, the lower end of the elastic element 5 is continuously pressed, the thickness is reduced to generate a reaction force, and the reaction force pushes the supporting point to lift upwards together with the cylinder body 2 and the peripheral ballast bed plate;
(4) When the road bed plate is heightened to a proper height, a supporting block 10 of the heightening and locking structure 9 is placed on the upper portion of the elastic element 5, wherein a second baffle 13 of the supporting block 10 is pressed on the upper end face of the elastic element 5, and simultaneously screw teeth on a first baffle 12 are tightly matched with screw teeth of the tooth-shaped block 11, and after the completion, anchor bolts are gradually fastened in batches until the L-shaped stop block is completely fastened.
(5) And taking out the jacking device 17, and installing an outer sleeve cover plate to finish the installation.
Compared with the prior art, the construction process of the spring vibration isolator provided by the embodiment omits debugging and installation of the height-adjusting gasket, simplifies the jacking process, can be completed only by 1 round, and improves the construction efficiency by at least 50%.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (9)
1. The spring vibration isolator comprises an outer sleeve (1) and an elastic element (5), wherein the outer sleeve (1) comprises a cylinder body (2), the elastic element (5) is arranged inside the cylinder body (2), and the spring vibration isolator is characterized in that a jacking stop block (4) is arranged on the upper part of the cylinder body (2), a height-adjusting locking structure (9) is connected to a position, close to the lower part, in the cylinder body (2), the height-adjusting locking structure (9) plays roles in height adjustment and locking,
The height-adjusting locking structure (9) is arranged into a tooth-shaped fixing structure, the height-adjusting locking structure (9) comprises a supporting block (10) and a tooth-shaped block (11), the tooth-shaped block (11) is fixed on the cylinder body, one side of the tooth-shaped block (11) facing the inside of the cylinder body is attached to the supporting block (10), one side of the supporting block (10) and one side of the tooth-shaped block (11) opposite to each other are both arranged into a screw tooth structure,
The bottom of the supporting block (10) is used for pressing the elastic element (5),
The cylinder body (2), the supporting block (10) and the tooth-shaped block (11) are connected in the horizontal direction, an anchor bolt (16) is adopted to penetrate through the cylinder body (2) from the inside of the outer sleeve (1) and fixedly connected with a pre-buried sleeve in a concrete ballast bed, or a threaded fastener is adopted to penetrate through the supporting block (10) and the tooth-shaped block (11) from the inside of the outer sleeve (1) and screwed into the cylinder body (2), or a threaded fastener is adopted to penetrate through the tooth-shaped block (11) and the supporting block (10) from the outside of the outer sleeve (1) and screwed into the inside of the outer sleeve (1) and fastened and fixed through the fastener.
2. The spring vibration isolator according to claim 1, wherein the support blocks (10) are provided in an L-shaped positioning block configuration.
3. The spring vibration isolator according to claim 2, characterized in that the side of the tooth-shaped block (11) facing the supporting block (10) is provided with a screw structure, the side of the supporting block (10) facing the tooth-shaped block (11) is also provided with a screw structure, the supporting block (10) comprises a first baffle (12) and a second baffle (13).
4. The spring vibration isolator according to claim 2, wherein the supporting block (10) is attached to the inner wall of the cylinder, the tooth-shaped block (11) is arranged on one side of the supporting block (10) facing away from the inner wall of the cylinder, one side of the supporting block (10) facing away from the inner wall of the cylinder is provided with a screw structure, one side of the tooth-shaped block (11) facing the supporting block (10) is also provided with a screw structure, and the supporting block (10) comprises a first baffle (12) and a second baffle (13).
5. A spring vibration isolator according to claim 3, characterized in that the first baffle (12) is parallel to the cylinder wall of the cylinder (2), the second baffle (13) extends perpendicularly to the first baffle (12) and in the direction of the central axis of the cylinder (2), the second baffle (13) is used for pressing the elastic element (5), and the side of the first baffle (12) facing away from the second baffle (13) is provided with finely spaced, angled threads which cooperate with the threads of the toothed block (11).
6. The spring vibration isolator according to claim 4, characterized in that the first baffle (12) is parallel to the cylinder wall of the cylinder (2), the second baffle (13) is perpendicular to the first baffle (12) and extends in the direction of the central axis of the cylinder (2), the second baffle (13) is used for pressing the elastic element (5), and the side of the first baffle (12) facing the second baffle (13) is provided with fine spaced angular threads which are matched with the threads of the toothed block (11).
7. The spring vibration isolator according to claim 1, characterized in that the jacking block (4) is provided as an anchor bolt which is fixedly connected with the concrete pavement bed through the cylinder (2), and one end of the anchor bolt exposed inside the cylinder forms the jacking block (4).
8. The spring vibration isolator according to claim 1, characterized in that a fixing member (14) is arranged in the middle of the outer wall of the cylinder (2), the fixing member (14) is of a strip-shaped and plate-shaped structure, and a concave-convex positioning structure (15) is arranged on the fixing member (14) and used for fixing and bundling with reinforcing steel bars in concrete.
9. A construction process of a spring vibration isolator, characterized in that the spring vibration isolator according to any one of claims 1 to 8 is used, the construction process comprising the following steps:
(1) Pouring a ballast bed plate: fixing the processed outer sleeve (1) with the steel bars, installing embedded bolt sleeves, casting concrete, and finishing the forming of the road bed board;
(2) Placing an elastic element (5) in the outer sleeve (1), screwing an upper anchoring piece into the upper bolt sleeve to form a jacking stop block;
(3) A pressing block (18) at the lower end of the jacking device (17) is placed on the elastic element (5), three clamping claws (8) at the upper part of the jacking device (17) hook the jacking stop block at the upper part, the lower end of the elastic element (5) is continuously pressed, the thickness is reduced to generate a reaction force, and the reaction force pushes a supporting point to lift upwards together with the cylinder body (2) and the peripheral ballast bed plate;
(4) When the road bed plate is heightened to a proper height, a supporting block (10) of a heightening and locking structure (9) is placed on the upper part of the elastic element (5), wherein a second baffle plate (13) of the supporting block (10) is pressed on the upper end surface of the elastic element (5), and simultaneously screw teeth on a first baffle plate (12) are tightly matched with screw teeth on the cylinder wall, and after the completion, anchor bolts are gradually fastened in batches until the L-shaped baffle block is completely fastened;
(5) And taking out the jacking device (17), and installing an outer sleeve cover plate to finish the installation.
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| CN113322723B (en) * | 2021-06-29 | 2024-10-25 | 洛阳双瑞橡塑科技有限公司 | Sleeve device and vibration isolation sleeve |
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| CN211395197U (en) * | 2019-08-22 | 2020-09-01 | 洛阳双瑞橡塑科技有限公司 | Spring vibration isolator |
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| JP3168084B2 (en) * | 1992-12-07 | 2001-05-21 | 日本エラスター株式会社 | Floating slab construction method and floating slab support structure |
| JPH083901A (en) * | 1994-06-15 | 1996-01-09 | Bridgestone Corp | Adjusting method for level in track structure |
| CN201198550Y (en) * | 2008-05-16 | 2009-02-25 | 上海大裕橡胶制品有限公司 | Elastic bearing for float placing plate rail system |
| CN201826226U (en) * | 2010-06-17 | 2011-05-11 | 尹学军 | Insulated built-in type vibration isolation device |
| CN102220789B (en) * | 2011-04-14 | 2012-09-05 | 上海昭瑞减震科技有限公司 | Suspension type floating plate vibration isolation system |
| JP5936981B2 (en) * | 2012-10-04 | 2016-06-22 | 住友重機械工業株式会社 | Rail base |
| CN203212953U (en) * | 2013-04-12 | 2013-09-25 | 尹学军 | Vibration isolation device with adjustable height |
| CN103243619B (en) * | 2013-04-27 | 2015-02-25 | 洛阳双瑞橡塑科技有限公司 | Slab-type replaceable combined ballast bed system and construction process |
| CN106988166A (en) * | 2016-07-20 | 2017-07-28 | 隔而固(青岛)振动控制有限公司 | Stepless-adjustment high type built-in vibration-isolating device |
| CN106012696B (en) * | 2016-07-20 | 2018-01-23 | 隔而固(青岛)振动控制有限公司 | Stepless-adjustment high type is floating ballast bed |
| RU2672215C1 (en) * | 2017-09-05 | 2018-11-12 | Олег Савельевич Кочетов | Vibration-insulated platform with damping spring |
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