Vertical vibration isolation support

Abstract

The utility model discloses a vertical vibration isolation support which comprises a base plate, a plurality of disc type vibration isolators are arranged on the base plate, a sliding plate a is arranged between the lower surfaces of the disc type vibration isolators and the base plate, and the top faces of the disc type vibration isolators are connected with a support assembly. The vertical vibration isolation device has the advantages that the sliding plate a is arranged between the disc type vibration isolator and the base plate, the disc type vibration isolator and the sliding plate a jointly form a vibration isolation layer, under excitation of a train, vertical fundamental frequency formed by the beam body and the support keeps away from a superior frequency section of train vibration, and therefore vertical vibration isolation is achieved; meanwhile, a plurality of disc type vibration isolators are arranged on the base plate, so that the disc type vibration isolators are connected in parallel, the bearing capacity of the support is improved, and the support can be used on a large-span continuous beam bridge.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction, in particular to a vertical vibration isolation support. Background Art

[0002] The environmental vibration caused by rail transit trains disturbs people's daily lives, damages buildings, affects the normal operation of precision machine tools and instruments, and causes equipment accidents. For small and medium-capacity vertical vibration isolation spherical steel bearings such as simply supported beam bridges, a single vibration isolator structure is mainly used to reduce the vertical stiffness of the bearing to achieve vibration isolation. However, considering factors such as steel forming, processing, mechanical properties and economy, the vertical bearing capacity of a single vibration isolator cannot be higher and has limitations. It will be difficult to use for continuous beam bridges with large vertical loads on the bearings. Utility Model Content

[0003] The utility model aims to overcome the shortcomings of the prior art and provide a vertical vibration isolation support.

[0004] The purpose of the utility model is achieved through the following technical solutions: a vertical vibration isolation support, including a base plate, a plurality of disc-type vibration isolators are arranged on the base plate, and a slide plate a is arranged between the lower surface of the disc-type vibration isolator and the base plate, and the top surface of the disc-type vibration isolator is connected to the support assembly.

[0005] Preferably, notches are provided at both ends of the upper surface of the disc-type vibration isolator, and a groove is provided on the lower surface of the disc-type vibration isolator. Both ends of the groove are connected to one end of the supporting surface, the other end of the supporting surface is connected to one end of the supporting side surface, the other end of the supporting side surface is connected to one end of the notch, and the two notches are connected through the top surface.

[0006] Preferably, the surface of the groove has an inner plane and an inner inclined surface, both ends of the inner plane are connected to the inner inclined surfaces, and the other ends of the two inner inclined surfaces are connected to the corresponding supporting surfaces.

[0007] Preferably, a mounting cavity is provided on the base plate, a mounting groove is provided on the bottom surface of the mounting cavity, a slide plate a is installed in the mounting groove, the slide plate a is connected to the supporting surface, and there is a gap between the side surface of the disc isolator and the inner wall of the mounting cavity.

[0008] Preferably, there are four disc-type vibration isolators, and top surfaces of the four disc-type vibration isolators are located at the same height.

[0009] Preferably, a boss is provided in the installation cavity, the boss is located in the groove, and there is a gap between the top of the boss and the inner plane.

[0010] Preferably, the top surface diameter of the boss is smaller than the inner plane diameter.

[0011] Preferably, the slide plate a is annular.

[0012] Preferably, the support assembly includes an upper seat plate, a plane friction pair, a middle seat plate, a spherical friction pair and a lower seat plate, the upper surface of the top surface is connected to the lower surface of the lower seat plate, the upper surface of the lower seat plate is connected to the spherical friction pair, the upper surface of the spherical friction pair is connected to the middle seat plate, the upper surface of the middle seat plate is connected to the plane friction pair, and the upper surface of the plane friction pair is connected to the upper seat plate.

[0013] Preferably, a slide plate b is provided between the top surface and the lower seat plate.

[0014] The utility model has the following advantages: the utility model provides a slide plate a between the disc-type vibration isolator and the base plate, and the disc-type vibration isolator and the slide plate a together form a vibration isolation layer. Under the excitation of the train, the vertical fundamental frequency formed by the beam body and the support avoids the dominant frequency section of the train vibration, thereby realizing vertical vibration isolation; at the same time, a plurality of disc-type vibration isolators are provided on the base plate, so that they are connected in parallel, thereby improving the bearing capacity of the support, so that it can be used on a large-span continuous beam bridge. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the position relationship of the disc-type vibration isolator on the base plate;

[0016] Figure 2 It is a schematic diagram of the structure of AA;

[0017] Figure 3 It is a structural schematic diagram of a disc type vibration isolator;

[0018] In the figure, 1-upper seat plate, 2-flat friction pair, 3-middle seat plate, 4-spherical friction pair, 5-lower seat plate, 6-disc isolator, 8-lower seat plate, 9-slide plate b, 10-top surface, 11-notch, 12-support side surface, 13-support surface, 14-inner inclined surface, 15-inner plane, 16-slide plate a, 17-boss, 18-support assembly, 19-mounting cavity, 20-groove. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0021] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features thereof may be combined with each other.

[0022] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0023] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the utility model product is usually placed when in use, or the positions or positional relationships commonly understood by those skilled in the art, which are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0024] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] In this embodiment, if Figure 1As shown, a vertical vibration isolation support includes a base plate 8, on which a plurality of disc isolators 6 are arranged, and a slide plate a16 is arranged between the lower surface of the disc isolator 6 and the base plate 8. Preferably, the slide plate a16 is annular. The top surface 10 of the disc isolator 6 is connected to the support assembly 18. By arranging the slide plate a16 between the disc isolator 6 and the base plate 8, the disc isolator 6 and the slide plate a16 jointly form a vibration isolation layer. Under the excitation of the train, the vertical fundamental frequency formed by the beam body and the support avoids the dominant frequency section of the train vibration, thereby realizing vertical vibration isolation; at the same time, a plurality of disc isolators 6 are arranged on the base plate 8, so that they are connected in parallel, thereby improving the bearing capacity of the support, so that it can be used on a large-span continuous beam bridge.

[0026] Further, such as Figure 3 As shown, notches 11 are provided at both ends of the upper surface of the disc-type vibration isolator 6, and a groove 20 is provided at the lower surface of the disc-type vibration isolator 6. Both ends of the groove 20 are connected to one end of the support surface 13, and the other end of the support surface 13 is connected to one end of the support side surface 12, and the other end of the support side surface 12 is connected to one end of the notch 11, and the two notches 11 are connected through the top surface 10. Furthermore, the surface of the groove 20 has an inner plane 15 and an inner inclined surface 14, and both ends of the inner plane 15 are connected to the inner inclined surface 14, and the other ends of the two inner inclined surfaces 14 are connected to the corresponding support surface 13. In this embodiment, a mounting cavity 19 is provided on the base plate 8, and a mounting groove is provided on the bottom surface of the mounting cavity 19, and a slide plate a16 is installed in the mounting groove, and the slide plate a16 is connected to the support surface 13, and there is a gap between the side of the disc-type vibration isolator 6 and the inner side wall of the mounting cavity 19. Specifically, by setting a slide plate a16 between the support surface 13 and the base plate 8, and applying grease on the upper part of the slide plate a16, its function is to reduce the friction coefficient, which is beneficial to the vertical elastic deformation of the vibration isolation layer, so that the radial deformation caused by the vertical force can be better released, thereby ensuring the vertical deformation and elastic capacity of the vibration isolation layer.

[0027] In this embodiment, if Figure 2 As shown, there are four disc-type vibration isolators 6, and the top surfaces 10 of the four disc-type vibration isolators 6 are located at the same height. Specifically, the four disc-type vibration isolators 6 are symmetrically arranged on the base plate 8, so that the centers of the four disc-type vibration isolators 6 can be connected to form a circle with the support as the center. The parallel connection of the disc-type vibration isolators 6 improves the bearing capacity of the support, and the force on each disc-type vibration isolator 6 is consistent, so that the overall vertical stiffness of the support is easy to control.

[0028] Further, a boss 17 is provided in the mounting cavity 19, the boss 17 is located in the groove 20, and there is a gap between the top of the boss 17 and the inner plane 15. Preferably, the top surface diameter of the boss 17 is smaller than the diameter of the inner plane 15. Specifically, by providing the boss 17 in the groove 20, when the support is overloaded, the vibration isolation layer can achieve hard contact, so that the vibration isolation layer no longer increases vertical deformation, thereby protecting the vibration isolation layer.

[0029] In this embodiment, the support assembly 18 is an existing product and has not been improved here. Specifically, the support assembly 18 includes an upper seat plate 1, a plane friction pair 2, a middle seat plate 3, a spherical friction pair 4 and a lower seat plate 5. The upper surface of the top surface 10 is connected to the lower surface of the lower seat plate 5, the upper surface of the lower seat plate 5 is connected to the spherical friction pair 4, the upper surface of the spherical friction pair 4 is connected to the middle seat plate 3, the upper surface of the middle seat plate 3 is connected to the plane friction pair 2, and the upper surface of the plane friction pair 2 is connected to the upper seat plate 1. Further, a slide plate b9 is provided between the top surface 10 and the lower seat plate 5. Specifically, a slide plate b9 is embedded between the top surface 10 and the lower seat plate 5, so that the top surface 10 and the lower seat plate 5 are in vertical soft contact, thereby avoiding uneven force caused by vertical height deviation when multiple disc-type vibration isolators 6 are arranged. In this embodiment, the slide plate a16 and the slide plate b9 are both made of existing non-metallic materials, and modified ultra-high molecular weight polyethylene is selected here.

[0030] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A vertical vibration isolation support, characterized in that: It comprises a base plate (8), a plurality of disc-type vibration isolators (6) are arranged on the base plate (8), a slide plate a (16) is arranged between the lower surface of the disc-type vibration isolator (6) and the base plate (8), and the top surface (10) of the disc-type vibration isolator (6) is connected to a support assembly (18); Notches (11) are provided at both ends of the upper surface of the disc-type vibration isolator (6), and a groove (20) is provided at the lower surface of the disc-type vibration isolator (6), both ends of the groove (20) are connected to one end of the support surface (13), the other end of the support surface (13) is connected to one end of the support side surface (12), the other end of the support side surface (12) is connected to one end of the notch (11), and the two notches (11) are connected via the top surface (10); The surface of the groove (20) has an inner plane (15) and an inner inclined surface (14), both ends of the inner plane (15) are connected to the inner inclined surface (14), and the other ends of the two inner inclined surfaces (14) are connected to the corresponding support surfaces (13); The base plate (8) is provided with a mounting cavity (19), the bottom surface of the mounting cavity (19) is provided with an inlay groove, the slide plate a (16) is installed in the inlay groove, the slide plate a (16) is connected to the support surface (13), and a gap is provided between the side surface of the disc-type vibration isolator (6) and the inner wall of the mounting cavity (19).

2. The vertical vibration isolation support according to claim 1, characterized in that: There are four disc-type vibration isolators (6), and the top surfaces (10) of the four disc-type vibration isolators (6) are located at the same height.

3. The vertical vibration isolation support according to claim 2, characterized in that: A boss (17) is arranged in the installation cavity (19); the boss (17) is located in the groove (20), and a gap is provided between the top end of the boss (17) and the inner plane (15).

4. The vertical vibration isolation support according to claim 3, characterized in that: The top surface diameter of the boss (17) is smaller than the diameter of the inner plane (15).

5. The vertical vibration isolation support according to claim 1, characterized in that: The slide plate a (16) is annular.

6. The vertical vibration isolation support according to claim 1, characterized in that: The support assembly (18) comprises an upper seat plate (1), a plane friction pair (2), a middle seat plate (3), a spherical friction pair (4) and a lower seat plate (5); the upper surface of the top surface (10) is connected to the lower surface of the lower seat plate (5); the upper surface of the lower seat plate (5) is connected to the spherical friction pair (4); the upper surface of the spherical friction pair (4) is connected to the middle seat plate (3); the upper surface of the middle seat plate (3) is connected to the plane friction pair (2); and the upper surface of the plane friction pair (2) is connected to the upper seat plate (1).

7. The vertical vibration isolation support according to claim 6, characterized in that: A slide plate b (9) is provided between the top surface (10) and the lower seat plate (5).

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