Rubber vibration isolator structure for buffering train vibration on railway track

Abstract

The invention discloses a rubber vibration isolator structure for buffering train vibration on a railway track, and relates to the technical field of rubber vibration isolators, the rubber vibration isolator structure comprises a buffering part and a positioning part, the buffering part and the positioning part are integrally formed, the buffering part is arranged on the inner side of the track, and the positioning part wraps the bottom of the track and is inserted into soil; the buffering part comprises an upper cavity seat and a lower cavity seat, the upper cavity seat and the lower cavity seat are distributed from top to bottom, an opening is formed in the upper portion of the lower cavity seat, a plurality of screw rods are rotatably arranged on the top side of the interior of the upper cavity seat at equal intervals, and threaded sleeves are screwed to the exteriors of the screw rods through threads. According to the rubber vibration isolator structure for buffering the train vibration on the railway track, the buffering force is adjustable, manual adjustment can be conducted according to different line conditions, train running speeds and load changes, self-adaptive performance is provided so as to meet the vibration isolation requirements under various working conditions, and the limitation brought by the design of a traditional rubber vibration isolator fixing structure is overcome.

Description

Technical Field

[0001] The invention relates to the technical field of rubber vibration isolators, in particular to a rubber vibration isolator structure used for railway tracks to buffer train vibrations. Background Art

[0002] With the rapid development of high-speed railways, reducing the vibration and noise generated during train operation has become an important research direction. As a key buffer component in the railway track system, rubber isolators can effectively absorb and isolate the vibration caused by train operation through their unique elastic properties, thereby protecting the track structure, reducing noise pollution, and improving passenger comfort.

[0003] Traditional rubber isolators usually adopt a fixed structure design, and their buffering strength is determined by the hardness, shape and size of the rubber material. Although this design is simple and reliable, it has certain limitations in practical applications. For example, the buffering strength requirements of the isolator may be different under different lines, different train running speeds and different load conditions. However, the buffering strength of traditional rubber isolators cannot be adjusted according to actual needs, resulting in unsatisfactory vibration isolation effects under certain working conditions. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention provides a rubber vibration isolator structure for railway tracks to buffer train vibrations, which solves the problem that traditional rubber vibration isolators adopt a fixed structure design and cannot adjust the buffering force according to actual needs such as line, vehicle speed and load, resulting in poor vibration isolation effect under certain working conditions.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a rubber vibration isolator structure for buffering train vibrations on railway tracks, comprising a buffering portion and a positioning portion, wherein the buffering portion and the positioning portion are integrally formed, and the buffering portion is arranged on the inner side of the track, and the positioning portion wraps the bottom of the track and is inserted into the soil.

[0006] The buffer part includes an upper cavity seat and a lower cavity seat, and the upper cavity seat and the lower cavity seat are distributed from top to bottom. The upper part of the lower cavity seat is an opening, and a plurality of screws are equidistantly arranged on the inner top side of the upper cavity seat. A threaded sleeve is screwed on the outer side of the screw through a thread, and the lower end of the threaded sleeve is rotated through the inner lower side of the upper cavity seat and is arranged in the lower cavity seat. An adjusting part for driving each screw to rotate is provided on the top of the upper cavity seat, and a buffer block is provided between the lower ends of each threaded sleeve. The buffer block is longitudinally slidably arranged in the lower cavity seat, and a plurality of disc springs are equidistantly connected to the bottom of the buffer block, and the bottom of the disc spring is fixedly arranged on the inner lower side of the lower cavity seat.

[0007] Preferably, the adjusting part includes a cavity arranged at the top of the upper cavity seat, a worm is rotatably arranged in the cavity, and a knob for driving the worm to rotate is arranged on the outside of the cavity, and a plurality of worm wheels corresponding to each screw are also rotatably arranged inside the cavity, the worm is meshed with each worm wheel, and the lower end of each worm wheel is respectively connected to the upper end of the screw corresponding to it.

[0008] Preferably, the disc spring is made of rubber.

[0009] Preferably, the positioning portion includes an angle plate arranged on one side of the lower cavity seat, the angle plate wraps the bottom of the track, and a plug-in plate is arranged on the other side of the angle plate, and a plug-in tip is arranged on the lower side of the plug-in plate. The plug-in plate and the plug-in tip are both hollow structures, and the interiors of the two are connected, and the plug-in plate is plugged into the soil through the plug-in tip.

[0010] Preferably, a water-swelling strip is provided on the inner top side of the plug board, a plurality of movable rods are equidistantly provided on the bottom of the water-swelling strip, a plurality of connecting rods are equidistantly hinged on both sides of the movable rods, a plurality of rows of knife grooves corresponding to the movable rods are equidistantly distributed on both sides of the outside of the plug board, the number of knife grooves in each row is the same as the number of connecting rods on one side of the movable rod, and a positioning knife is rotatably provided in the knife groove, one end of the connecting rod away from the movable rod is hinged to the side of the positioning knife corresponding thereto, and water inlet holes corresponding to the water-swelling strips are densely distributed on the upper sides of both sides of the plug board.

[0011] Preferably, the lower end of the moving rod is connected to a moving plate, the lower end of the moving plate slides longitudinally through the inner lower side of the plug-in plate and is arranged in the plug tip part, a plurality of rows of hole slots are arranged on both sides of the plug tip part, a plurality of hole slots are arranged in each row, and sharp stakes are slidably arranged in the hole slots, and a limiting strip is connected to the plug tip part between one end of the sharp stakes in each row of hole slots, the limiting strip is connected to the inner wall of the plug tip part by a limiting spring, and the limiting strips on both sides are arranged in an inverted eight shape, and the lower end of the moving plate is located between the limiting strips on both sides, so that when the moving plate moves downward, the limiting strips on both sides are squeezed respectively.

[0012] Preferably, when the water-swellable strip is not expanded, the positioning knife is arranged in the knife groove, and the tip of the pointed pile is arranged in the hole groove.

[0013] The present invention provides a rubber vibration isolator structure for railway tracks to buffer train vibrations, which has the following beneficial effects compared with the prior art:

[0014] 1. The rubber isolator structure used for railway track to buffer train vibration has adjustable buffering force and can be manually adjusted according to different line conditions, train running speed and load changes, providing adaptive performance to meet the vibration isolation requirements under various working conditions, overcoming the limitations of the fixed structure design of traditional rubber isolators, making the vibration isolation effect more ideal and flexible.

[0015] 2. The rubber isolator structure used for buffering train vibration on railway tracks, when it rains, the rain will wet the rain expansion strip, causing it to expand, thereby driving the positioning knife and the sharp pile to be inserted into the soil, reinforcing the positioning part, and preventing the rubber isolator from loosening and affecting the seismic isolation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the present invention;

[0017] Figure 2 It is a schematic diagram of the combined structure between the buffer part and the positioning part of the present invention;

[0018] Figure 3 It is a structural schematic diagram of the buffer part of the present invention;

[0019] Figure 4 It is a structural schematic diagram of the positioning part of the present invention;

[0020] Figure 5 It is a schematic diagram of the internal structure of the positioning part of the present invention.

[0021] In the figure: 1. buffer part; 11. upper cavity seat; 12. lower cavity seat; 13. adjustment part; 131. cavity; 132. worm; 133. knob; 134. worm wheel; 14. screw; 15. threaded sleeve; 16. buffer block; 17. disc spring; 2. positioning part; 21. angle plate; 22. plug-in plate; 221. water expansion strip; 222. moving rod; 223. connecting rod; 224. knife groove; 225. positioning knife; 226. water inlet hole; 23. plug-in tip; 231. moving plate; 232. hole groove; 233. sharp stake; 234. limit strip; 235. limit spring. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] See also Figure 1-Figure 5 , the present invention provides three technical solutions:

[0024] Embodiment 1

[0025] See also Figure 1 In an embodiment of the present invention, a rubber vibration isolator structure for buffering train vibration on a railway track includes a buffer portion 1 and a positioning portion 2. The buffer portion 1 and the positioning portion 2 are integrally formed, and the buffer portion 1 is arranged on the inner side of the track, and the positioning portion 2 wraps the bottom of the track and is inserted into the soil.

[0026] See also Figure 2-Figure 3 In the embodiment of the present invention, the buffer portion 1 includes an upper cavity seat 11 and a lower cavity seat 12, and the upper cavity seat 11 and the lower cavity seat 12 are distributed from top to bottom. The upper part of the lower cavity seat 12 is open, and a plurality of screws 14 are equidistantly rotated on the inner top side of the upper cavity seat 11. A threaded sleeve 15 is screwed on the outer side of the screw 14 through a thread, and the lower end of the threaded sleeve 15 rotates through the inner lower side of the upper cavity seat 11 and is arranged in the lower cavity seat 12. An adjusting portion 13 for driving each screw 14 to rotate is provided on the top of the upper cavity seat 11, and a buffer block 16 is provided between the lower ends of each threaded sleeve 15. The buffer block 16 is longitudinally slidably arranged in the lower cavity seat 12, and a plurality of disc springs 17 are equidistantly connected to the bottom of the buffer block 16, and the bottom of the disc spring 17 is fixedly arranged on the inner lower side of the lower cavity seat 12.

[0027] In the above scheme: the screw 14 is driven to rotate by the adjusting part 13, and the screw 14 will drive the threaded sleeve 15 to move longitudinally, causing it to move downward, thereby driving the buffer block 16 to move downward, and the buffer block 16 will compress the disc spring 17, and adjust the compression amount of the disc spring 17, thereby changing the elastic strength of the disc spring 17. For different tracks, the disc spring 17 is adjusted to different strengths, thereby adjusting the buffering strength.

[0028] For further information, see Figure 2-Figure 3 In the embodiment of the present invention, the adjusting portion 13 includes a cavity 131 arranged at the top of the upper cavity seat 11, a worm 132 is rotatably arranged in the cavity 131, and a knob 133 for driving the worm 132 to rotate is arranged on the outside of the cavity 131, and a plurality of worm wheels 134 corresponding to each screw 14 are rotatably arranged inside the cavity 131, the worm 132 is meshed with each worm wheel 134, and the lower end of each worm wheel 134 is respectively connected to the upper end of the corresponding screw 14, and the worm 132 is driven to rotate by rotating the knob 133, the worm 132 drives each worm wheel 134 meshed with it to rotate, and the worm wheel 134 drives the screw 14 to rotate.

[0029] For further information, see Figure 2-Figure 3 In the embodiment of the present invention, the disc spring 17 is made of rubber. Rubber has softness and elasticity and can better play a buffering role.

[0030] The second embodiment is different from the first embodiment in that:

[0031] See also Figure 4-Figure 5 In the embodiment of the present invention, the positioning portion 2 includes an angle plate 21 arranged on one side of the lower cavity seat 12, the angle plate 21 wraps the bottom of the track, and a plug-in board 22 is arranged on the other side of the angle plate 21, and a plug-in tip 23 is arranged on the lower side of the plug-in board 22. The plug-in board 22 and the plug-in tip 23 are both hollow structures, and the interiors of the two are connected, and the plug-in board 22 is plugged into the soil through the plug-in tip 23.

[0032] See also Figure 4-Figure 5 In the embodiment of the present invention, a water-expandable strip 221 is provided on the inner top side of the plug board 22, a plurality of movable rods 222 are equidistantly provided at the bottom of the water-expandable strip 221, a plurality of connecting rods 223 are equidistantly hinged on both sides of the movable rods 222, a plurality of rows of knife grooves 224 corresponding to the movable rods 222 are equidistantly distributed on both sides of the outside of the plug board 22, the number of knife grooves 224 in each row is the same as the number of connecting rods 223 on one side of the movable rod 222, and a positioning knife 225 is rotatably provided in the knife groove 224, one end of the connecting rod 223 away from the movable rod 222 is hinged to the side of the positioning knife 225 corresponding thereto, and water inlet holes 226 corresponding to the water-expandable strip 221 are densely distributed on the upper sides of both sides of the plug board 22.

[0033] In the above scheme: in rainy weather, rainwater will penetrate into the soil, and then penetrate into the water inlet hole 226 on the plug board 22, moistening the water-swellable strip 221, and the water-swellable strip 221 will expand, driving the moving rod 222 to move downward. When the moving rod 222 moves downward, the connecting rod 223 will drive the positioning knife 225 to rotate, so that the positioning knife 225 is moved out of the knife groove 224 and inserted into the side wall of the soil, thereby positioning and reinforcing the plug board 22.

[0034] Embodiment 3 is different from Embodiment 1 in that:

[0035] See also Figure 4-Figure 5 In the embodiment of the present invention, the lower end of the moving rod 222 is connected to a moving plate 231, and the lower end of the moving plate 231 slides longitudinally through the inner lower side of the plug-in plate 22 and is arranged in the plug-in tip portion 23. Both sides of the plug-in tip portion 23 are provided with a plurality of rows of hole grooves 232, and each row of hole grooves 232 is provided with a plurality of spikes 233 that are slidably arranged in the hole grooves 232. One end of the spikes 233 in each row of hole grooves 232 is located in the plug-in tip portion 23 and connected to a limiting strip 234. The limiting strip 234 is connected to the inner wall of the plug-in tip portion 23 by a limiting spring 235, and the limiting strips 234 on both sides are arranged in an inverted eight shape. The lower end of the moving plate 231 is located between the limiting strips 234 on both sides, so that when the moving plate 231 moves downward, the limiting strips 234 on both sides are squeezed respectively.

[0036] In the above scheme: when the moving rod 222 moves downward, it will also drive the moving plate 231 to move downward. When the moving plate 231 moves downward, it will squeeze the limit strips 234 on both sides thereof respectively. Under the elasticity of the limit spring 235, the limit strip 234 will drive the pointed pile 233 to move, so that it leaks out of the hole groove 232 and is plugged into the soil, which plays a role in positioning and reinforcing the plug-in plate 22 again, thereby preventing the seismic isolator from loosening easily.

[0037] For further information, see Figure 5 In the embodiment of the present invention, when the water-swellable strip 221 is not expanded, the positioning knife 225 is disposed in the knife groove 224 , and the tip of the sharp stake 233 is disposed in the hole groove 232 .

[0038] Working principle: partially insert the buffer part 1 into the inner part of the track, then insert the positioning part 2 into the lower part of the track and insert the plug-in board 22 into the soil to complete the installation of the rubber vibration isolator;

[0039] The worm 132 is driven to rotate by rotating the knob 133, and the worm 132 drives the worm wheels 134 meshing therewith to rotate, and the worm wheels 134 drive the screw 14 to rotate, and the screw 14 drives the threaded sleeve 15 to move longitudinally, so that it moves downward, thereby driving the buffer block 16 to move downward, and the buffer block 16 compresses the disc spring 17, and adjusts the compression amount of the disc spring 17, so that the elastic strength of the disc spring 17 can be changed. For different tracks, the disc spring 17 is adjusted to different strengths, so that the buffer strength can be adjusted;

[0040] In rainy weather, rainwater will penetrate into the soil, and then penetrate into the water inlet hole 226 on the plug board 22, moistening the water-expandable strip 221, which will expand and drive the moving rod 222 to move downward. When the moving rod 222 moves downward, the connecting rod 223 will drive the positioning knife 225 to rotate, so that the positioning knife 225 is moved out of the knife groove 224 and inserted into the side wall of the soil, so as to position and reinforce the plug board 22;

[0041] When the moving rod 222 moves downward, it will also drive the moving plate 231 to move downward. When the moving plate 231 moves downward, it will squeeze the limit strips 234 on both sides thereof respectively. Under the elasticity of the limit spring 235, the limit strip 234 will drive the pointed pile 233 to move, causing it to leak out of the hole groove 232 and be plugged into the soil, thereby positioning and reinforcing the plug-in plate 22 again, thereby preventing the seismic isolator from loosening easily.

[0042] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Claims

1. A rubber vibration isolator structure for buffering train vibration on railway tracks, comprising a buffering portion (1) and a positioning portion (2), characterized in that: The buffer part (1) and the positioning part (2) are integrally formed, and the buffer part (1) is arranged on the inner side of the track, and the positioning part (2) wraps the bottom of the track and is inserted into the soil; The buffer portion (1) comprises an upper cavity seat (11) and a lower cavity seat (12), the upper cavity seat (11) and the lower cavity seat (12) are arranged from top to bottom, the upper portion of the lower cavity seat (12) is open, a plurality of screws (14) are equidistantly arranged on the inner top side of the upper cavity seat (11), a threaded sleeve (15) is screwed on the outer side of the screw (14) through a thread, the lower end of the threaded sleeve (15) is rotated through the inner lower side of the upper cavity seat (11) and is provided Placed in the lower cavity seat (12), the top of the upper cavity seat (11) is provided with an adjusting portion (13) for driving each screw rod (14) to rotate, and a buffer block (16) is provided between the lower ends of each threaded sleeve (15). The buffer block (16) is longitudinally slidably arranged in the lower cavity seat (12), and the bottom of the buffer block (16) is equidistantly connected to a plurality of disc springs (17), and the bottom of the disc spring (17) is fixedly arranged on the inner lower side of the lower cavity seat (12).

2. A rubber vibration isolator structure for railway track to buffer train vibration according to claim 1, characterized in that: The adjusting portion (13) comprises a cavity (131) arranged at the top of the upper cavity seat (11), a worm (132) being rotatably arranged in the cavity (131), and a knob (133) for driving the worm (132) to rotate is arranged on the outside of the cavity (131), and a plurality of worm wheels (134) corresponding to the respective screws (14) are rotatably arranged inside the cavity (131), the worm (132) is meshed with the respective worm wheels (134), and the lower end of each worm wheel (134) is respectively connected to the upper end of the corresponding screw (14).

3. The rubber vibration isolator structure for railway track to buffer train vibration according to claim 1, characterized in that: The disc spring (17) is made of rubber.

4. The rubber vibration isolator structure for railway track to buffer train vibration according to claim 1, characterized in that: The positioning portion (2) comprises an angle plate (21) arranged on one side of the lower cavity seat (12), the angle plate (21) wraps the bottom of the track, and a plug-in plate (22) is arranged on the other side of the angle plate (21), and a plug-in tip portion (23) is arranged on the lower side of the plug-in plate (22), the plug-in plate (22) and the plug-in tip portion (23) are both hollow structures, and the insides of the two are connected, and the plug-in plate (22) is plugged into the soil through the plug-in tip portion (23).

5. The rubber vibration isolator structure for railway track to buffer train vibration according to claim 4, characterized in that: The top side of the plug board (22) is provided with a water-swelling strip (221), the bottom of the water-swelling strip (221) is provided with a plurality of moving rods (222) at equal intervals, and both sides of the moving rods (222) are hinged with a plurality of connecting rods (223) at equal intervals. Both sides of the outside of the plug board (22) are provided with a plurality of rows of knife grooves (224) corresponding to the moving rods (222) at equal intervals, and the number of knife grooves (224) in each row is set to be the same as the number of connecting rods (223) on one side of the moving rod (222), and a positioning knife (225) is rotatably arranged in the knife groove (224), and one end of the connecting rod (223) away from the moving rod (222) is hinged to the side of the positioning knife (225) corresponding to it, and both sides of the plug board (22) are densely distributed with water inlet holes (226) corresponding to the water-swelling strip (221) at the top.

6. A rubber vibration isolator structure for railway track to buffer train vibration according to claim 5, characterized in that: The lower end of the moving rod (222) is connected to a moving plate (231), the lower end of the moving plate (231) longitudinally slides through the lower inner side of the plug plate (22) and is arranged in the plug tip portion (23), both sides of the plug tip portion (23) are provided with a plurality of rows of slots (232), each row of slots (232) is provided with a plurality of pointed stakes (233) slidably arranged in the slots (232), and the pointed stakes in each row of slots (232) are arranged to slide in the slots (232). The limiting strip (234) is connected to one end of the inserting tip (23), the limiting strip (234) is connected to the inner wall of the inserting tip (23) through a limiting spring (235), and the limiting strips (234) on both sides are arranged in an inverted eight shape, and the lower end of the movable plate (231) is located between the limiting strips (234) on both sides, so that when the movable plate (231) moves downward, the limiting strips (234) on both sides are squeezed respectively.

7. A rubber vibration isolator structure for railway track to buffer train vibration according to claim 6, characterized in that: When the water-swellable strip (221) is not expanded, the positioning knife (225) is arranged in the knife groove (224), and the tip of the pointed stake (233) is arranged in the hole groove (232).

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