CN217026509U

CN217026509U - Rubber spring vibration isolator and floating slab track bed vibration damper

Info

Publication number: CN217026509U
Application number: CN202220732016.1U
Authority: CN
Inventors: 褚夫强; 魏军光; 蔡斌; 陈涛
Original assignee: Luoyang Sunrui Rubber and Plastic Technology Co Ltd
Current assignee: Luoyang Sunrui Rubber and Plastic Technology Co Ltd
Priority date: 2022-03-30
Filing date: 2022-03-30
Publication date: 2022-07-22
Anticipated expiration: 2032-03-30

Abstract

The utility model provides a rubber spring vibration isolator and a vibration damping device of a floating slab track bed, wherein the rubber spring vibration isolator comprises a vibration isolation shell, an elastic unit and a positioning pin, the positioning pin and the elastic unit are matched and positioned for fixing the elastic unit on a foundation, the vibration isolation shell is sleeved on the elastic unit, a first gap is formed between the bottom of the vibration isolation shell and the bottom of the elastic unit in the axial direction, and a jacking groove and a first pressure bearing part are arranged at the top of the vibration isolation shell. According to the utility model, through the arrangement of the first bearing part, the jacking groove and the bolt hole on the vibration isolation shell, the vibration isolation shell simultaneously has the functions of the protective shell and the bearing plate, the part arrangement is reduced, the installation steps are simplified, through the arrangement of the first gap and the second gap, the heat generated when the rubber spring vibration isolator is lifted is reduced, the heat dissipation efficiency is improved, meanwhile, the rubber spring vibration isolator has good drainage performance, and the risk that the elastic unit is soaked by water is avoided.

Description

Rubber spring vibration isolator and floating slab track bed vibration damper

Technical Field

The utility model relates to the technical field of rail transit, in particular to a rubber spring vibration isolator and a floating slab track bed vibration damper.

Background

At present, the suspension of the track bed plate of the rubber spring floating slab track bed in the field of rail transit is mainly realized by matching a vibration isolation sleeve device, a bearing plate, a height-adjusting base plate and a rubber spring vibration isolator.

As shown in fig. 1, the rubber spring vibration isolator in the prior art mainly includes an upper protective shell 16, a lower protective shell 19, a sealing strip 18, a vibration isolation unit 17, a positioning pin, and the like, where the upper protective shell 16, the lower protective shell 19, and the sealing strip 18 form a sealed space to seal the vibration isolation unit 17 in the internal space. During the use, pass through bolt locking with bearing plate and rubber isolator shell and be connected, the suspension lift of bed board is realized to the rethread height adjusting backing plate, and current rubber spring isolator has following problem when using:

(1) the whole parts are more, and the installation is more complicated;

(2) the vibration isolation unit 17 is usually made of rubber, and is placed in a sealed space formed by the upper protective shell 16, the lower protective shell 19 and the sealing strip 18, so that heat generated in a frequent compression process is not easily dissipated, rubber aging is accelerated, and the service life of the rubber spring vibration isolator is shortened;

(3) rubber spring isolator is in the course of the work, and upper protective housing 16 can up-and-down reciprocating motion, rubs sealing strip 18 on every side simultaneously, sealing strip 18 in long-term friction motion, produces sealed clearance easily, leads to sealed effect to weaken for the sealed space is intake easily, and is difficult to get rid of after intaking, makes vibration isolation unit 17 is long-term bubble water, and then leads to its life to shorten by a wide margin.

SUMMERY OF THE UTILITY MODEL

The utility model solves the problems that the existing rubber spring vibration isolator has more integral parts and is more complex to install; the vibration isolation unit is arranged in the sealed space and is not easy to dissipate heat; the sealed space is not easy to discharge after water enters, and the service life of the rubber spring vibration isolator is seriously influenced.

The utility model discloses a rubber spring vibration isolator which comprises a vibration isolation shell, an elastic unit and a positioning pin, wherein the positioning pin and the elastic unit are matched and positioned for fixing the elastic unit on a foundation, the vibration isolation shell is sleeved on the elastic unit, a first gap is formed between the bottom of the vibration isolation shell and the bottom of the elastic unit in the axial direction, and a jacking groove and a first pressure bearing part are arranged at the top of the vibration isolation shell.

The setting of jacking groove and first pressure-bearing portion makes the vibration isolation shell has possessed the dual function of protective housing and bearing plate among the prior art simultaneously, has reduced spare part setting, has also saved the connection structure between protective housing and the bearing plate, has simplified the installation procedure, has improved the installation effectiveness, in addition, setting up of first clearance is in the vibration isolation shell provides the lift space, thereby makes can move down after the vibration isolation shell receives pressure, works as the bottom of vibration isolation shell with during the bottom butt of elastic element, reach the biggest compression stroke for the amount of sinking of protection railway roadbed.

Furthermore, the vibration isolation shell comprises a sleeve portion, the jacking groove and the first pressure-bearing portion are arranged at the top of the sleeve portion, a containing cavity with an opening at the lower end is formed in the sleeve portion, the containing cavity is used for containing the elastic unit, a positioning groove is formed in the top end of the containing cavity, and the positioning groove is circumferentially matched with the top of the elastic unit for positioning.

In the arrangement, the top of the elastic unit is matched and positioned with the positioning groove, and the elastic unit is provided with an upper plate, and a rubber layer is vulcanized on the outer side of the upper plate, so that the connection structure of the elastic unit and the vibration isolation shell comprises the upper plate, the rubber layer and the sleeve part, and the connection of the elastic unit and the vibration isolation shell is more stable.

Further, a second gap exists between the inner wall of the sleeve portion and the elastic unit in the radial direction.

The second gap is arranged, so that the vibration isolation shell does not rub the outer surface of the elastic unit when being lifted, the heating during lifting is reduced, the heat dissipation capacity of the rubber spring vibration isolator is improved, the rubber layer is effectively protected, and the service life of the rubber spring vibration isolator is prolonged; on the other hand, the arrangement of the second gap enables a gap to exist between the sleeving part and the limiting part, so that water entering the accommodating cavity can be discharged easily, the risk that the elastic unit soaks water is effectively avoided, and the service life of the rubber spring vibration isolator is guaranteed.

Further, a transition part is arranged between the accommodating cavity and the positioning groove, and the accommodating cavity is smoothly connected with the positioning groove through the transition part.

This setting can avoid hold the chamber with form the step between the constant head tank to prevent that the step from causing the damage to the rubber layer at the lift in-process of vibration isolation shell, in addition, the setting of transition portion also can hold effectively hold the processing tool bit that holds the chamber is favorable to the processing production of vibration isolation shell.

Furthermore, the top of the sleeving part is also provided with a bolt hole, and the bolt hole is used for fixedly connecting the vibration isolation shell with the anti-rotation plate.

The vibration isolation shell is arranged so that a bearing plate does not need to be arranged, the vibration isolation shell can be fixedly arranged in the sleeve by arranging the bolt hole in the top of the vibration isolation shell, the effect of the bearing plate is completely replaced, the arrangement of parts is reduced, the installation steps are simplified, the vibration isolation shell can be prevented from rotating by fixedly connecting the vibration isolation shell with the anti-rotation plate, and the normal work of the vibration isolation shell is guaranteed.

Furthermore, the elastic unit comprises a rubber layer, and an upper plate, a middle plate and a bottom plate which are arranged in the rubber layer, wherein the upper plate, the middle plate, the bottom plate and the rubber layer are vulcanized into an integrated structure.

In the arrangement, the rubber layer provides corresponding elastic force for the elastic unit, the upper plate, the middle plate and the bottom plate provide corresponding supporting force for the elastic unit, meanwhile, the upper plate is abutted to the inner surface of the vibration isolation shell and is matched with the positioning groove to realize circumferential limiting, and the bottom plate is used for limiting the lifting of the vibration isolation shell and comprises horizontal limiting and vertical limiting.

Further, the bottom plate comprises a bottom main body, a limiting part is arranged on the upper side of the bottom main body, the vibration isolation shell is sleeved outside the limiting part, and the first gap is formed between the bottom of the vibration isolation shell and the upper surface of the bottom main body.

The setting of spacing portion makes the lift of vibration isolation shell all go on along the axial of spacing portion is injectd its displacement in the horizontal direction, has prevented the crooked condition takes place when the rubber spring isolator goes up and down, simultaneously, the setting of bottom main part is right the vibration isolation shell plays the limiting displacement of vertical direction, works as when vibration isolation shell and bottom main part butt, the compression of rubber spring isolator is to the maximum stroke for the sinking of protection railway roadbed.

Furthermore, the bottom of the bottom layer main body is provided with a positioning hole which is used for being connected with a positioning pin in a positioning mode.

The locating hole set up simply and easily processing, possess good location connection effect simultaneously.

Furthermore, the locating pin includes the location fixed part, the location fixed part be used for with the locating pin is fixed to be set up in the ground the top of location fixed part is provided with the reference column, the reference column be used for with elastic unit location connection.

The positioning column extends into the positioning hole to complete positioning connection between the positioning pin and the elastic unit, optionally, the positioning column is in a cone frustum-shaped structure, the positioning hole is correspondingly arranged, and the arrangement can enlarge the stress area of the positioning column, so that a better positioning and supporting effect is obtained.

The utility model also discloses a vibration damper of the floating slab track bed, which comprises the rubber spring vibration isolator.

Compared with the prior art, the floating slab track bed vibration damper has the same advantages as the rubber spring vibration isolator, and the detailed description is omitted.

Compared with the prior art, the rubber spring vibration isolator and the floating slab track bed vibration damping device with the same have the following advantages: according to the utility model, through the arrangement of the first bearing part, the jacking groove and the bolt hole on the vibration isolation shell, the vibration isolation shell has the functions of the protective shell and the bearing plate, the part arrangement is reduced, the installation steps are simplified, through the arrangement of the first gap and the second gap, the heat generated when the rubber spring vibration isolator is lifted is reduced, the heat dissipation efficiency is improved, meanwhile, the rubber spring vibration isolator has good drainage performance, and the risk that the elastic unit is soaked by water is avoided. The rubber spring vibration isolator is simple and practical in structure, the installation efficiency can be remarkably improved, and the service life of the rubber spring vibration isolator is prolonged.

Drawings

FIG. 1 is a schematic structural diagram of a rubber spring vibration isolator in the prior art;

fig. 2 is a schematic overall structural diagram of the rubber spring vibration isolator according to the embodiment of the utility model;

FIG. 3 is a front view of the rubber spring isolator according to the embodiment of the utility model;

FIG. 4 is a schematic cross-sectional view taken along line A-A of FIG. 3;

fig. 5 is an exploded structural schematic diagram of the rubber spring vibration isolator according to the embodiment of the utility model;

FIG. 6 is a front view of a vibration isolation housing according to an embodiment of the present invention;

FIG. 7 is a cross-sectional view taken along line B-B of FIG. 6;

FIG. 8 is a schematic diagram of an exploded structure of an elastic unit according to an embodiment of the present invention;

FIG. 9 is an exploded view of another perspective of the elastic unit according to the embodiment of the present invention;

FIG. 10 is a schematic structural view of a bottom sheet according to an embodiment of the present invention;

FIG. 11 is a schematic view of another perspective view of the bottom plate of the present invention;

FIG. 12 is a schematic view of a locating pin according to an embodiment of the present invention;

FIG. 13 is a front view of a floating slab track bed vibration damper in accordance with an embodiment of the present invention;

FIG. 14 is a cross-sectional view of the portion C-C in FIG. 13;

fig. 15 is an exploded view of the vibration damping device for a floating slab track bed according to an embodiment of the present invention;

FIG. 16 is a front view of the sleeve according to the embodiment of the present invention;

FIG. 17 is a schematic cross-sectional view taken along line D-D of FIG. 16;

fig. 18 is a schematic cross-sectional view taken along line E-E in fig. 16.

Description of reference numerals:

1. a rubber spring vibration isolator; 11. a vibration isolation housing; 111. a sheathing part; 112. a first pressure-receiving portion; 113. jacking a groove; 114. bolt holes; 115. positioning a groove; 116. an accommodating chamber; 117. a transition portion; 12. an elastic unit; 121. a rubber layer; 122. an upper plate; 123. a middle plate; 124. a bottom layer plate; 1241. a bottom layer main body; 1242. a limiting part; 1243. positioning holes; 13. positioning pins; 131. positioning the fixing part; 132. a positioning column; 14. a first gap; 15. a second gap; 16. an upper protective shell; 17. a vibration isolation unit; 18. a seal strip; 19. a lower protective shell; 2. a sleeve; 21. a barrel wall; 22. a pressure-bearing stop block; 23. positioning a plate; 3. heightening the base plate; 31. a second bearing part; 32. jacking a through hole; 33. a through groove; 4. provided is an anti-rotation plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. The specific embodiments described herein are merely illustrative of the utility model and do not delimit the utility model.

The rubber spring vibration isolator and the floating slab track bed vibration damping device according to the embodiment of the utility model are described in detail below with reference to the accompanying drawings.

Example 1

The embodiment provides a rubber spring vibration isolator, as shown in fig. 1-12, including vibration isolation shell 11, elastic unit 12 and locating pin 13, locating pin 13 and elastic unit 12 cooperate the location, be used for with elastic unit 12 fixes on the ground, vibration isolation shell 11 cover is established on elastic unit 12, there is first clearance 14 in the bottom of vibration isolation shell 11 and elastic unit 12's bottom in the axial direction vibration isolation shell 11 top is provided with jacking groove 113 and first pressure part 112. In one embodiment, the jacking groove 113 is disposed in the center of the top of the vibration isolation housing 11, the jacking groove 113 is used for setting a puller jacking device to achieve lifting of a floating slab track bed damping device, the floating slab track bed damping device includes a sleeve 2, a pressure-bearing stop block 22 is disposed in the sleeve 2, in the floating slab track bed damping device, the first pressure-bearing portion 112 and the pressure-bearing stop block 22 in the sleeve 2 of the floating slab track bed damping device are disposed correspondingly to bear pressure generated when a track bed is lifted, in an optional embodiment, the first pressure-bearing portion 112 is of a protruding ear structure, the first pressure-bearing portion 112 and the pressure-bearing stop block 22 are both provided with a plurality of pieces, the first pressure-bearing portion 112 and the pressure-bearing stop block 22 are disposed in a one-to-one correspondence, and in one embodiment, the first pressure-bearing portion 112 and the pressure-bearing stop block 22 are both 3 pieces. In this embodiment, the jacking groove 113 and the first pressure receiving portion 112 are arranged, so that the vibration isolation housing 11 has the dual functions of the protection shell and the pressure receiving plate in the prior art, and meanwhile, only one housing needs to be arranged, compared with the prior art, one housing, one pressure receiving plate and the connection structure of the pressure receiving plate and the protection shell are reduced, the arrangement of parts is reduced, the installation steps are simplified, and the installation efficiency is improved, in addition, the arrangement of the first gap 14 provides a lifting space for the vibration isolation housing 11, so that the vibration isolation housing 11 can move downwards after being subjected to pressure, and when the bottom of the vibration isolation housing 11 abuts against the bottom of the elastic unit 12, the maximum compression stroke is reached, and the sinking amount of the track bed is protected. In this embodiment, in order to facilitate the use of the puller lifting device, the lifting groove 113 is a circular groove.

In the present embodiment, as shown in fig. 8 and 9, the elastic unit 12 includes a rubber layer 121, and an upper plate 122, a middle plate 123 and a lower plate 124 disposed in the rubber layer 121, and the upper plate 122, the middle plate 123, the lower plate 124 and the rubber layer 121 are vulcanized into an integral structure. In this arrangement, the rubber layer 121 provides a corresponding elastic force for the elastic unit 12, the upper plate 122, the middle plate 123, and the bottom plate 124 provide a corresponding supporting force for the elastic unit 12, meanwhile, the upper plate 122 abuts against an inner surface of the vibration isolation housing 11, that is, an upper surface of the positioning groove 115, and forms a circumferential fit limit with the positioning groove 115, so as to limit the top of the elastic unit 12 in the horizontal direction, and the bottom plate 124 is used for limiting the lifting of the vibration isolation housing 11, where the limit includes a horizontal limit and a vertical limit. As a preferred embodiment, the upper plate 122, the middle plate 123 and the bottom plate 124 are all made of steel plates, which can provide sufficient supporting force and also provide a good limiting effect on the lifting of the vibration isolation housing 11.

As an embodiment of the present invention, as shown in fig. 10 and 11, the bottom plate 124 includes a bottom plate main body 1241, a stopper portion 1242 is provided on an upper side of the bottom plate main body 1241, the vibration isolation housing 11 is fitted around an outer side of the stopper portion 1242, and the first gap 14 is provided between a bottom of the vibration isolation housing 11 and an upper surface of the bottom plate main body 1241. The arrangement of the limiting part 1242 enables the vibration isolation housing 11 to ascend and descend along the axial direction of the limiting part 1242, and limits the displacement of the vibration isolation housing in the horizontal direction, so that the situation that the rubber spring vibration isolator 1 is inclined when ascending and descending is prevented, meanwhile, the arrangement of the bottom layer main body 1241 plays a role in limiting the vibration isolation housing 11 in the vertical direction, and when the vibration isolation housing 11 is abutted to the bottom layer main body 1241, the rubber spring vibration isolator 1 is compressed to the maximum stroke for protecting the sinking amount of the track bed.

Specifically, as shown in fig. 11, a positioning hole 1243 is provided at the bottom of the bottom layer main body 1241, and the positioning hole 1243 is used for positioning connection with the positioning pin 13. The positioning hole 1243 is simple and easy to process, and has a good positioning and connecting effect.

As an embodiment of the present invention, as shown in fig. 6 and 7, the vibration isolation housing 11 includes a sleeving part 111, the jacking groove 113 and the first pressure-bearing part 112 are disposed at a top of the sleeving part 111, an accommodating cavity 116 with an open lower end is disposed on the sleeving part 111, the accommodating cavity 116 is used for accommodating the elastic unit 12, a positioning groove 115 is disposed at a top end of the accommodating cavity 116, and the positioning groove 115 is circumferentially matched and positioned with a top of the elastic unit 12. It should be understood that the sheathing part 111 has a hollow structure with an open lower end, the sheathing part 111 is partially sheathed on the elastic unit 12, and the bottom surface of the sheathing part 111 is located between the upper surface of the stopper part 1242 and the upper surface of the bottom layer main body 1241, thereby limiting horizontal and vertical displacements of the vibration isolation housing 11 such that the vibration isolation housing 11 performs an elevating movement in the extending direction of the stopper part 1242. In this arrangement, the top of the elastic unit 12 is matched and positioned with the positioning groove 115, and since the top of the elastic unit 12 is provided with the upper plate 122 and the outer side of the upper plate 122 is vulcanized and provided with the rubber layer 121, the connection structure of the elastic unit 12 and the vibration isolation housing 11 includes the upper plate 122, the rubber layer 121 and the sleeving part 111, so that the connection of the elastic unit 12 and the vibration isolation housing 11 is more stable.

As one preferred embodiment, as shown in fig. 4, a second gap 15 exists between the inner wall of the sheathing part 111 and the elastic unit 12 in the radial direction. It should be understood that in this arrangement, the diameter of the positioning groove 115 is kept smaller than that of the accommodating cavity 116, and the diameter of the accommodating cavity 116 is larger than that of the elastic unit 12, so as to form the second gap 15, and the second gap 15 is arranged, on one hand, so that the vibration isolation housing 11 does not rub against the outer surface of the elastic unit 12 when being lifted, thereby reducing heat generation when being lifted, and simultaneously improving the heat dissipation capability of the rubber spring vibration isolator 1, effectively protecting the rubber layer 121, and prolonging the service life thereof; on the other hand, the second gap 15 is arranged to allow a gap to exist between the sleeving part 111 and the limiting part 1242, so that water entering the accommodating cavity 116 can be easily discharged, the risk of water soaking of the elastic unit 12 is effectively avoided, and the service life of the rubber spring vibration isolator 1 is ensured.

Specifically, as shown in fig. 7, a transition portion 117 is disposed between the accommodating cavity 116 and the positioning groove 115, and the accommodating cavity 116 is smoothly connected to the positioning groove 115 through the transition portion 117, which can prevent a step from being formed between the accommodating cavity 116 and the positioning groove 115, thereby preventing the step from damaging the rubber layer 121 during the lifting process of the vibration isolation housing 11, and in addition, the transition portion 117 can also effectively accommodate the processing tool bit of the accommodating cavity 116, which is beneficial to the processing and production of the vibration isolation housing 11.

In the present embodiment, as shown in fig. 5 and 7, a bolt hole 114 is further provided at the top of the sleeve portion 111, and the bolt hole 114 is used for fixedly connecting the vibration isolation housing 11 and the rotation prevention plate 4. It should be understood that the bearing plate in the prior art is fixedly disposed in the sleeve 2 by the locking bolt, and in this embodiment, the vibration isolation housing 11 is disposed such that the bearing plate is not required to be disposed, so that the bolt hole 114 disposed at the top of the vibration isolation housing 11 can fixedly dispose it in the sleeve 2, completely replace the function of the bearing plate, reduce the number of components, simplify the installation steps, and the fixed connection of the vibration isolation housing 11 and the rotation-preventing plate 4 can prevent the vibration isolation housing 11 from rotating, thereby ensuring the normal operation thereof.

As one example, as shown in fig. 11 and 12, the positioning pin 13 includes a positioning fixing part 131, the positioning fixing part 131 is used for fixedly arranging the positioning pin 13 in a foundation, a positioning column 132 is arranged at a top end of the positioning fixing part 131, and the positioning column 132 is used for positioning connection with the elastic unit 12. It should be understood that in some embodiments, the positioning column 132 extends into the positioning hole 1243 to complete the positioning connection between the positioning pin 13 and the elastic unit 12, and optionally, the positioning column 132 is in a truncated cone shape, and the positioning hole 1243 is correspondingly disposed, which may enlarge a force-bearing area of the positioning column 132, so as to obtain a better positioning and supporting effect.

Example 2

The embodiment discloses a floating slab track bed vibration damper, which comprises a rubber spring vibration isolator 1 in embodiment 1.

In this embodiment, as shown in fig. 13 to 18, the floating plate track bed vibration damper further includes a sleeve 2, a height-adjusting cushion plate 3, and an anti-rotation plate 4, where the sleeve 2 includes a cylinder wall 21, a plurality of pressure-bearing stoppers 22 are discontinuously disposed around an axis inside the cylinder wall 21, the height-adjusting cushion plate 3 is disposed between the vibration-isolating housing 11 and the pressure-bearing stoppers 22, and the anti-rotation plate 4 is configured to prevent the rubber spring vibration isolator 1 from rotating relative to the sleeve 2.

As shown in fig. 15, a second bearing portion 31, a jacking through hole 32 and a through groove 33 are arranged on the heightening base plate 3, the second bearing portion 31 corresponds to the first bearing portion 112, the jacking through hole 32 corresponds to the jacking groove 113, and the through groove 33 corresponds to the bolt hole 114. In some alternative embodiments, the jacking through hole 32 is communicated with the through groove 33.

Preferably, a positioning plate 23 is disposed on one side of the pressure-bearing stop block 22 close to the vibration isolation housing 11, and the positioning plate 23 is used for positioning the first pressure-bearing part 112 and the second pressure-bearing part 31.

Specifically, the installation and use processes of the floating slab track bed vibration damper are as follows:

step S1: punching a foundation, and mounting a positioning pin 13;

step S2: the elastic unit 12 is fixed on the foundation through the matching of the positioning pin 13 and the positioning hole 1243;

step S3: arranging the vibration isolation housing 11 on the elastic unit 12, and rotating the vibration isolation housing 11 after the top of the elastic unit 12 enters the positioning groove 115 to enable the first pressure bearing part 112 on the vibration isolation housing 11 to be positioned right below the pressure bearing stop 22 on the sleeve 2;

step S4: the track bed is lifted to a specified height through multiple stacking of the heightening base plates 3 with different thicknesses and repeated pressurization and pressure relief of the jacking puller device;

step S5: after jacking is finished, the floating plate way bed vibration damper is fastened through the fastening bolt and the anti-rotation plate.

It should be noted that all terms used in the present invention for directional and positional indication, such as: the terms "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", "top", "lower", "head", "tail", "center", and the like are used only for explaining the relative positional relationship, connection, and the like between the respective members in a certain state, and are only for convenience of describing the present invention, and do not require that the present invention must be constructed and operated in a certain orientation, and thus, should not be construed as limiting the present invention. In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated.

Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the utility model as defined in the appended claims.

Claims

1. The utility model provides a rubber spring isolator, its characterized in that, includes vibration isolation shell (11), elastic element (12) and locating pin (13), locating pin (13) and elastic element (12) cooperation location, be used for with elastic element (12) are fixed on the ground, vibration isolation shell (11) cover is established on elastic element (12), there is first clearance (14) bottom and the bottom of elastic element (12) of vibration isolation shell (11) on the axial direction vibration isolation shell (11) top is provided with jacking groove (113) and first splenium (112).

2. The rubber spring vibration isolator as claimed in claim 1, wherein the vibration isolation housing (11) comprises a sleeving part (111), the jacking groove (113) and the first pressure bearing part (112) are arranged at the top of the sleeving part (111), an accommodating cavity (116) with an open lower end is arranged on the sleeving part (111), the accommodating cavity (116) is used for accommodating the elastic unit (12), a positioning groove (115) is arranged at the top end of the accommodating cavity (116), and the positioning groove (115) is circumferentially matched and positioned with the top of the elastic unit (12).

3. The rubber-spring isolator according to claim 2, characterized in that there is a second gap (15) in the radial direction of the inner wall of the sleeve portion (111) and the elastic unit (12).

4. The rubber spring isolator as claimed in claim 2, characterized in that a transition (117) is provided between the receiving chamber (116) and the positioning slot (115), the receiving chamber (116) being smoothly connected with the positioning slot (115) via the transition (117).

5. The rubber spring vibration isolator as claimed in claim 2, wherein a bolt hole (114) is further provided at the top of the sleeve portion (111), and the bolt hole (114) is used for fixedly connecting the vibration isolation housing (11) and the rotation prevention plate (4).

6. A rubber spring vibration isolator according to any of claims 1-5, characterized in that the elastic unit (12) comprises a rubber layer (121) and an upper plate (122), a middle plate (123) and a bottom plate (124) which are arranged in the rubber layer (121), wherein the upper plate (122), the middle plate (123), the bottom plate (124) and the rubber layer (121) are vulcanized into an integral structure.

7. The rubber spring vibration isolator of claim 6, wherein the bottom plate (124) comprises a bottom main body (1241), a limiting portion (1242) is arranged on the upper side of the bottom main body (1241), the vibration isolation housing (11) is sleeved outside the limiting portion (1242), and the first gap (14) is arranged between the bottom of the vibration isolation housing (11) and the upper surface of the bottom main body (1241).

8. The rubber spring vibration isolator as claimed in claim 7, characterized in that a positioning hole (1243) is provided at the bottom of the bottom layer main body (1241), and the positioning hole (1243) is used for positioning connection with a positioning pin (13).

9. The rubber spring vibration isolator of any one of claims 1 to 5 and 7 to 8, wherein the positioning pin (13) comprises a positioning fixing part (131), the positioning fixing part (131) is used for fixedly arranging the positioning pin (13) in a foundation, a positioning column (132) is arranged at the top end of the positioning fixing part (131), and the positioning column (132) is used for being in positioning connection with the elastic unit (12).

10. A floating track bed vibration isolator comprising a rubber spring isolator as claimed in any one of claims 1 to 9.