Rubber spring floating slab

Abstract

The utility model discloses a rubber spring floating plate relates to floating plate technical field, including buffer assembly, the buffer assembly includes floating plate, and the floating plate is sequentially arranged with several groups of outer tube, and the outer tube one side is provided with the steel rail, and the outer tube inner wall is provided with fixed block, and the fixed block is sequentially arranged with multiple groups, and the outer tube one side is provided with outer tube cover plate, and the outer tube cover plate is provided with several groups of screw hole, and the fixed block is provided with fixed hole, and the size and position of fixed hole are adapted with the screw hole of outer tube cover plate, and the outer tube outer wall is provided with the lifting lug, and the lifting lug is provided with several groups of recess, and the outer tube inner wall is circularly arranged with several groups of positioning pin, and the positioning pin one side is installed with the connecting block. The utility model discloses through rubber spring can carry out effective buffering, and rubber spring has excellent post maintenance characteristics when using, can effectively reduce manufacturing cost, and solves the problem of complex post maintenance, can be used on a large scale.

Description

Technical Field

[0001] This invention relates to the field of floating plate technology, and more particularly to a rubber spring floating plate. Background Technology

[0002] Rubber spring floating slab track is a vibration-damping and noise-reducing track bed structure used in urban rail transit. It mainly consists of rubber spring vibration isolators, a rubber floating slab base, a reinforced concrete track bed slab, rails, and their fasteners. It achieves vibration reduction through the combination of the vibration isolator outer sleeve and rubber springs. Its structural type is similar to that of steel spring floating slab track beds. Extensive engineering practice in the rail transit field has proven that spring floating slab technology is one of the most effective existing track vibration and noise reduction technologies in special scenarios, especially in subways and urban light rail, where this technology has been widely applied.

[0003] Existing traditional damping methods mostly use steel spring vibration isolators. When using steel spring vibration isolators, damping and steel springs are generally used. The vibration reduction performance is greatly affected by the materials, the manufacturing cost is high, and the later maintenance is complicated, making it difficult to use on a large scale. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a rubber spring floating plate.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A rubber spring floating plate includes a buffer assembly. The buffer assembly includes a floating plate, on which several sets of outer cylinders are arranged sequentially. A steel rail is provided on one side of the outer cylinder, and a fixing block is provided on the inner wall of the outer cylinder. Multiple sets of fixing blocks are arranged sequentially. An outer cylinder cover plate is provided on one side of the outer cylinder, and the outer cylinder cover plate has several sets of screw holes. The fixing blocks have fixing holes, the size and position of which are adapted to the screw holes of the outer cylinder cover plate. The outer wall of the outer cylinder is provided with lifting lugs, and the lifting lugs have several sets of grooves. Several sets of positioning pins are arranged in a circle on the inner wall of the outer cylinder. A connecting block is installed on one side of the positioning pin, and a groove is provided in the center of the connecting block. An inner cylinder assembly for buffering is provided on one side of the outer cylinder.

[0007] As a further embodiment of the present invention: the inner cylinder assembly includes a horizontal limiter, an inner cylinder base is provided on one side of the horizontal limiter, a rubber spring is provided on the top of the inner cylinder base, an inner cylinder top plate is provided on the top of the rubber spring, an adjusting plate is provided on the top of the inner cylinder top plate, a locking plate is provided on the top of the adjusting plate, the locking plate has a fixing hole, and a locking bolt is provided through the fixing hole. The inner cylinder top plate is triangular in shape, and the size of the inner cylinder top plate is adapted to the connecting block.

[0008] As a further aspect of the present invention, the longitudinal installation spacing of the outer cylinder is 0.6m.

[0009] As a further aspect of the present invention: the rubber spring is made of natural rubber, and a reinforcing agent is added inside the rubber spring.

[0010] As a further aspect of the present invention: the outer cylinder is made of Q235B steel plate with a thickness of 8mm or more.

[0011] As a further aspect of the present invention: the inner cylinder base is integrally formed, and a fixing groove is provided on the top of the inner cylinder base, with a groove depth of 5mm.

[0012] As a further embodiment of the present invention: the inner cylinder base and the inner wall of the inner cylinder top plate are staggered and overlapped in the vertical direction, and the height of the inner cylinder base matches the deformation height of the rubber spring.

[0013] As a further aspect of the present invention: the outer cylinder cover plate is made of insulating material, and the size of the outer cylinder cover plate is adapted to the outer cylinder.

[0014] As a further aspect of the present invention: an inner cylinder sealing strip is provided on one side of the inner cylinder base, and the inner cylinder sealing strip is made of rubber.

[0015] As a further aspect of the present invention: the horizontal limiter is made of metal steel and is coated with an anti-corrosion coating.

[0016] The beneficial effects of this invention are as follows:

[0017] 1. By setting up buffer components and inner cylinder components, the outer cylinder, inner cylinder base, adjusting plate, locking plate, locking bolts, and horizontal limiter can be assembled into a whole vibration isolator assembly. This restricts the horizontal displacement of the inner cylinder base, allowing it to move only in the vertical direction. The rubber springs have nonlinear stiffness characteristics, effectively absorbing medium- and high-frequency vibrations, with a vibration reduction effect of 10–15 dB. This fundamentally solves the problem of areas requiring moderate vibration reduction and noise reduction. Relying on the high damping ratio of the vibration isolator itself, no additional damping device is needed. During installation, the floating plate can provide greater installation tolerances and reserved gaps. In use, it can distribute vertical train loads and simultaneously provide stiffness and damping in both longitudinal and transverse directions, effectively preventing vibration and displacement problems of the floating plate structure. The rubber springs have excellent maintenance characteristics, effectively reducing manufacturing costs and solving the problem of complex maintenance, allowing for large-scale use.

[0018] 2. The rubber spring is made of natural rubber, accounting for about 50-70%, with a reinforcing agent dosage of 30-50 phr. It can achieve a tensile strength greater than or equal to 17 MPa and an elongation at break greater than or equal to 400%, which greatly increases the tensile strength of the rubber spring and prevents it from breaking.

[0019] 3. The integrally molded inner cylinder base avoids the phenomenon of stress concentration and excessive load on local welds after conventional structure welding. The fixing groove opened on the top of the inner cylinder base can increase the contact area of ​​the rubber spring, which can improve the effect during use. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a rubber spring floating plate proposed in this invention from a main perspective;

[0021] Figure 2 This is a schematic diagram of the structure of a rubber spring floating plate buffer section proposed in this invention;

[0022] Figure 3 This is a schematic diagram of the structure of the casting part of the rubber spring floating plate proposed in this invention;

[0023] Figure 4 This is a schematic diagram of the inner cylinder of a rubber spring floating plate proposed in this invention;

[0024] Figure 5 This is a schematic diagram of the structure of the top plate of the inner cylinder of a rubber spring floating plate proposed in this invention;

[0025] Figure 6 This is a schematic diagram of the structure of a rubber spring floating plate locking plate proposed in this invention.

[0026] In the diagram: 1. Floating plate; 2. Rail; 3. Outer cylinder; 4. Lifting lug; 5. Locking plate; 6. Inner cylinder top plate; 7. Inner cylinder base; 8. Rubber spring; 9. Horizontal limiter; 10. Inner cylinder sealing strip; 11. Adjusting plate; 12. Locking bolt; 13. Connecting block; 14. Fixing block; 15. Outer cylinder cover plate; 16. Positioning pin. Detailed Implementation

[0027] The technical solution of the present invention will be further described in detail below with reference to specific embodiments.

[0028] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0029] Example 1

[0030] A rubber spring floating plate, such as Figure 1-6As shown, the system includes a buffer assembly, which includes a floating plate 1. Several sets of outer cylinders 3 are arranged sequentially on the floating plate 1. A rail 2 is provided on one side of the outer cylinder 3. Fixing blocks 14 are provided on the inner wall of the outer cylinder 3. Multiple sets of fixing blocks 14 are arranged sequentially. An outer cylinder cover plate 15 is provided on one side of the outer cylinder 3. The outer cylinder cover plate 15 has several sets of screw holes. Fixing blocks 14 have fixing holes. The size and position of the fixing holes are adapted to the screw holes of the outer cylinder cover plate 15. Lifting lugs 4 are provided on the outer wall of the outer cylinder 3. The lifting lugs 4 have several sets of grooves. Several sets of positioning pins 16 are arranged in a circle on the inner wall of the outer cylinder 3. A connecting block 13 is installed on one side of the positioning pin 16. A groove is provided in the center of the connecting block 13. An inner cylinder assembly for buffering is provided on one side of the outer cylinder 3.

[0031] In use, the lifting lug 4 is fixed to the outer wall of the outer cylinder 3 by welding. The reinforcing bars can be tied to the lifting lug 4. After tying, the steel bars are cast into an integral reinforced concrete structure, thereby completing the overall casting of the outer cylinder 3 and the floating plate 1. The screw holes of the outer cylinder cover plate 15 and the fixing holes of the fixing block 14 are aligned and the bolts are tightened for fixation.

[0032] The inner cylinder assembly includes a horizontal limiter 9, an inner cylinder base 7 is provided on one side of the horizontal limiter 9, a rubber spring 8 is provided on the top of the inner cylinder base 7, an inner cylinder top plate 6 is provided on the top of the rubber spring 8, an adjusting plate 11 is provided on the top of the inner cylinder top plate 6, a locking plate 5 is provided on the top of the adjusting plate 11, the locking plate 5 has a fixing hole, and a locking bolt 12 is provided through the fixing hole. The inner cylinder top plate 6 is triangular in shape, and the size of the inner cylinder top plate 6 is adapted to the connecting block 13.

[0033] In use, after the outer cylinder 3 and the floating plate 1 are cast as a whole, a horizontal limiter 9 can be installed by drilling a hole at the base position in the middle of the outer cylinder 3. Then, the inner cylinder base 7 is placed on the horizontal limiter 9. The floating plate 1 is lifted as a whole to the suspended position between the outer cylinder 3 and the top plate 6 of the inner cylinder. After the adjusting plate 11 is inserted and adjusted into place, the floating plate 1 is lowered and pressed onto the adjusting plate 11. The locking plate 5 is then installed. The slot of the locking plate 5 is precisely engaged with the connecting block 13 of the outer cylinder 3. The locking bolt 12 is then inserted to secure the locking plate 5, the adjusting plate 11, and the inner cylinder. The top plate 6 is fixed, and finally the outer cylinder 3, inner cylinder base 7, adjusting plate 11, locking plate 5, locking bolt 12, and horizontal limiter 9 are assembled into an integral vibration isolator assembly, which restricts the horizontal displacement of the inner cylinder base 7, so that the inner cylinder base 7 can only move in the vertical direction. The inner cylinder top plate 6 is inserted when it is offset from the connecting block 13 by 60°, and after being inserted, it is rotated back 60°, and is placed under the connecting block 13 for fixing. The rubber spring 8 has non-linear stiffness characteristics and can effectively absorb medium and high frequency vibrations of 20–80 Hz, with a vibration reduction effect of 10–15 dB. It fundamentally solves the problem of areas requiring moderate vibration reduction and noise reduction. Relying on the high damping ratio of the vibration isolator itself, there is no need to add an additional damping device. When the vibration isolator is installed, the floating plate 1 can provide a larger installation tolerance and reserved gap. When in use, it can distribute the vertical train load and provide stiffness and damping in both longitudinal and transverse directions. It can effectively prevent the vibration and displacement problems of the floating plate 1 structure. The rubber spring 8 has excellent maintenance characteristics during use, which can effectively reduce manufacturing costs and solve the problem of complex maintenance. It can be used on a large scale.

[0034] To increase support stiffness, such as Figure 1 As shown, the longitudinal installation spacing of the outer cylinder 3 is 0.6m;

[0035] When in use, changes in the arrangement density will cause significant changes in the bottom support stiffness of the floating plate 1 and the natural frequency will also change. By fixing the installation spacing of 0.6m between multiple sets of outer cylinders 3, the natural frequency can be significantly reduced and the support stiffness can be effectively increased.

[0036] To increase tensile strength, such as Figure 2 As shown, the rubber spring 8 is made of natural rubber, and a reinforcing agent is added inside the rubber spring 8;

[0037] When in use, the rubber spring 8 is made of natural rubber, accounting for about 50-70%, and the amount of reinforcing agent is 30-50 phr. It can achieve a tensile strength greater than or equal to 17 MPa and an elongation at break greater than or equal to 400%, which greatly increases the tensile strength of the rubber spring 8 and prevents it from being torn apart.

[0038] To increase service life, such as Figure 2As shown, the outer cylinder 3 is made of Q235B steel plate with a thickness of 8mm or more.

[0039] When in use, using Q235B steel plate to make the outer cylinder 3 with a thickness of ≥8mm can effectively increase the service life of the outer cylinder 3. After 2 million cycles of fatigue life, the stiffness decreases by less than 15%, and the ultimate load is greater than or equal to three times the working load without structural damage.

[0040] To enhance the effectiveness during use, such as Figure 2 As shown, the inner cylinder base 7 is integrally formed, and a fixing groove is provided on the top of the inner cylinder base 7, with a depth of 5mm.

[0041] When in use, the integrally formed inner cylinder base 7 avoids the phenomenon of stress concentration and excessive load on local welds after conventional structure welding. The fixing groove opened on the top of the inner cylinder base 7 can increase the contact area of ​​the rubber spring 8, which can improve the effect during use.

[0042] To reduce peak stress, such as Figure 2 As shown, the inner cylinder base 7 and the inner cylinder top plate 6 are staggered and overlapped in the vertical direction, and the height of the inner cylinder base 7 matches the deformation height of the rubber spring 8.

[0043] In use, the inner cylinder base 7 and the inner cylinder top plate 6 are staggered and overlapped in the vertical direction. After the inner cylinder base 7 and the inner cylinder top plate 6 are combined, they match the deformation height of the rubber spring 8, which can simultaneously attenuate axial, radial and torsional vibrations and reduce peak stress.

[0044] To increase insulation performance, such as Figure 1 As shown, the outer cylinder cover plate 15 is made of insulating material, and the size of the outer cylinder cover plate 15 is adapted to the outer cylinder 3;

[0045] When in use, the outer cylinder cover 15 made of insulating material can increase the insulation effect and can withstand 5KV voltage without being broken down.

[0046] To increase sealing, such as Figure 4 As shown, an inner cylinder sealing strip 10 is provided on one side of the inner cylinder base 7, and the inner cylinder sealing strip 10 is made of rubber.

[0047] When in use, the rubber inner cylinder sealing strip 10 is installed in the gap between the inner cylinder base 7 and the inner cylinder top plate 6 to achieve a sealing effect, which can effectively prevent water and dust and debris from entering and affecting normal use.

[0048] Example 2

[0049] To increase the service life of the horizontal limit switch 9, refer to Figure 2A rubber spring floating plate, in this embodiment, the following improvements are made compared to embodiment 1: the material of the horizontal limiter 9 is metal steel, and the horizontal limiter 9 is coated with an anti-corrosion coating;

[0050] When in use, the horizontal limiter 9 is made of metal steel material, which can increase its strength. The anti-corrosion coating can prevent the horizontal limiter 9 from being corroded and damaged during use, which can greatly increase the service life of the horizontal limiter 9.

[0051] The above description is merely a preferred embodiment of the present invention. For parts that do not require creative effort in circuit control, signal control and transmission, please refer to the prior art. However, the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A rubber spring floating plate, characterized in that, The system includes a buffer assembly, which includes a floating plate (1). Several sets of outer cylinders (3) are arranged sequentially on the floating plate (1). A rail (2) is provided on one side of the outer cylinder (3). A fixing block (14) is provided on the inner wall of the outer cylinder (3). Several sets of fixing blocks (14) are arranged sequentially. An outer cylinder cover plate (15) is provided on one side of the outer cylinder (3). Several sets of screw holes are provided on the outer cylinder cover plate (15). Fixing holes are provided on the fixing blocks (14). The size and position of the fixing holes are adapted to the screw holes of the outer cylinder cover plate (15). A lifting lug (4) is provided on the outer wall of the outer cylinder (3). Several sets of grooves are provided on the lifting lug (4). Several sets of positioning pins (16) are arranged in a circular pattern on the inner wall of the outer cylinder (3). A connecting block (13) is installed on one side of the positioning pin (16). A groove is provided in the center of the connecting block (13). An inner cylinder assembly for buffering is provided on one side of the outer cylinder (3).

2. The rubber spring floating plate according to claim 1, characterized in that, The inner cylinder assembly includes a horizontal limiter (9), an inner cylinder base (7) is provided on one side of the horizontal limiter (9), a rubber spring (8) is provided on the top of the inner cylinder base (7), an inner cylinder top plate (6) is provided on the top of the rubber spring (8), an adjusting plate (11) is provided on the top of the inner cylinder top plate (6), a locking plate (5) is provided on the top of the adjusting plate (11), the locking plate (5) has a fixing hole, and a locking bolt (12) is provided through the fixing hole. The inner cylinder top plate (6) is triangular in shape, and the size of the inner cylinder top plate (6) is adapted to the connecting block (13).

3. The rubber spring floating plate according to claim 1, characterized in that, The longitudinal installation spacing of the outer cylinder (3) is 0.6m.

4. A rubber spring floating plate according to claim 2, characterized in that, The rubber spring (8) is made of natural rubber and contains a reinforcing agent.

5. A rubber spring floating plate according to claim 1, characterized in that, The outer cylinder (3) is made of Q235B steel plate with a thickness of 8mm or more.

6. A rubber spring floating plate according to claim 2, characterized in that, The inner cylinder base (7) is integrally formed, and a fixing groove is provided on the top of the inner cylinder base (7), with a depth of 5mm.

7. A rubber spring floating plate according to claim 2, characterized in that, The inner cylinder base (7) and the inner wall of the inner cylinder top plate (6) are staggered in the vertical direction, and the height of the inner cylinder base (7) matches the deformation height of the rubber spring (8).

8. A rubber spring floating plate according to claim 1, characterized in that, The outer cylinder cover plate (15) is made of insulating material, and the size of the outer cylinder cover plate (15) is adapted to the outer cylinder (3).

9. A rubber spring floating plate according to claim 2, characterized in that, The inner cylinder base (7) is provided with an inner cylinder sealing strip (10) on one side, and the inner cylinder sealing strip (10) is made of rubber.

10. A rubber spring floating plate according to claim 2, characterized in that, The horizontal limiter (9) is made of metal steel and is coated with an anti-corrosion coating.

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