Bridge vibration suppression structure

Abstract

The utility model relates to the technical field of bridge vibration suppression, and discloses a bridge vibration suppression structure which comprises a sling, a supporting seat is installed on the outer side of the sling, a fixing seat is fixedly assembled on the top of the supporting seat, a fixing rod is fixedly assembled on the outer wall of the fixing seat, and a telescopic cylinder is movably connected to the outer wall of the fixing rod in a sleeved mode. A lifting plate is fixedly assembled on the top of the telescopic cylinder, and the outer wall of the lifting plate is rotationally connected with a viscous damper. According to the bridge vibration suppression structure, a fixed rod and a telescopic cylinder are arranged between a fixed seat and a lifting plate, and a threaded rod is driven to rotate through two bevel gears, so that the fixed rod and the telescopic cylinder can telescopically move, and the height of a connecting seat is adjusted, so that when equipment is installed, the height of the connecting seat is adjusted; and the supporting seat can be suitable for more mounting point positions with different heights, and the supporting seat does not need to be customized according to the mounting point positions, so that the equipment is more convenient to use.

Description

TECHNICAL FIELD

[0001] The utility model relates to bridge vibration suppression technical field, concretely is a bridge vibration suppression structure. BACKGROUND

[0002] Bridge flutter is a destructive divergent vibration, mainly due to the vibration structure can continuously absorb energy in flowing air, and the energy is greater than the energy dissipated by the structure in vibration, which is the interaction between the flow field and the vibration structure, causing the vibration structure torsional amplitude to continuously increase, until the wind is destroyed, in order to ensure the stable use of the bridge, the vibration suppression structure needs to be installed on the main structure of the bridge to suppress the resonance of the bridge.

[0003] The traditional vibration suppression equipment is used on some sling bridges, the sling needs to support and suspend the whole bridge deck, in order to ensure the safe use of the bridge, the vibration of the sling needs to be suppressed, so the vibration suppression device is installed on the outer wall of the sling, and the viscous damper is installed, but the traditional suppression equipment needs different height support fixed bases when installing the vibration suppression device at different positions, which needs to be customized according to the installation position, which is more troublesome, and one support fixed base cannot be used universally, so there are certain cumbersome steps in the installation process. UTILITY MODEL CONTENTS

[0004] In view of the defects of the prior art, the utility model provides a bridge vibration suppression structure, which has the advantages of convenient use and wide application range, and solves the problems raised in the above background art.

[0005] The utility model provides the following technical scheme: a bridge vibration suppression structure, including sling, the outer side of sling is installed with support seat, the top of support seat is fixedly assembled with fixed seat, the outer wall of fixed seat is fixedly assembled with fixed rod, the outer wall of fixed rod is movably sleeved with telescopic cylinder, the top of telescopic cylinder is fixedly assembled with lifting plate, the outer wall of lifting plate is rotatably connected with viscous damper, the outer wall of viscous damper is rotatably connected with connecting seat, the outer wall of support seat is fixedly assembled with support leg, the inner chamber of telescopic cylinder is rotatably connected with threaded rod, the outer wall of threaded rod is fixedly assembled with second bevel gear, the inner chamber of fixed rod is fixedly assembled with threaded cylinder, the inner chamber of telescopic cylinder is rotatably connected with connecting rod, the outer wall of connecting rod is fixedly assembled with first bevel gear, the outer wall of connecting rod is fixedly assembled with driven gear, the outer wall of connecting rod is rotatably connected with drive belt, the outer wall of telescopic cylinder is fixedly assembled with drive motor, the power output shaft of drive motor is fixedly assembled with drive gear.

[0006] As a preferred technical scheme of the utility model: the outer wall shape of the fixed rod is matched with the inner wall shape of the telescopic cylinder, the inner wall of the threaded cylinder is provided with internal thread, and the inner wall of the threaded cylinder and the outer wall of the threaded rod are mutually engaged.

[0007] As a preferred technical scheme of the utility model: the outer wall of the second bevel gear is mutually engaged with the outer wall of the first bevel gear, the inner cavity of the telescopic cylinder is provided with a limiting plate, and the outer wall of the threaded rod is rotationally connected in the inner cavity of the limiting plate.

[0008] As a preferred technical scheme of the utility model: the both ends of the drive belt outer wall are respectively rotationally connected with the outer wall of the connecting rod, and the drive belt is prepared from natural rubber.

[0009] As a preferred technical scheme of the utility model: the outer wall of the drive gear and the outer wall of the driven gear are mutually engaged, and the outer wall diameter of the drive gear is less than the outer wall diameter of the driven gear.

[0010] As a preferred technical scheme of the utility model: the top of the fixed seat is provided with a controller, and the controller is electrically connected with the drive motor.

[0011] Beneficial effects:

[0012] The bridge vibration suppression structure, through the fixed rod and the telescopic cylinder arranged between the fixed seat and the lifting plate, drives the threaded rod to rotate through the two bevel gears, so that the fixed rod and the telescopic cylinder can move in extension and contraction, and the height of the connecting seat is adjusted, so that the equipment can be applicable to more different height installation points during installation, and the supporting seat does not need to be customized according to the installation point, so that the use of the equipment is more convenient.

[0013] The utility model discloses the drive belt is set up on the connecting rod of both sides, and the connecting rod and the first bevel gear of both sides can be linked under the action of the drive belt, so that the threaded rod of both sides rotates synchronously, the height difference between the telescopic cylinder and the fixed rod is also equal, so that the lifting plate can be lifted parallel to the supporting seat, better supporting the viscous damper, and better buffering. ACCURACY

[0014] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;

[0015] Figure 2 It is the supporting seat structure schematic diagram of the utility model;

[0016] Figure 3 It is the mobile seat structure schematic diagram of the utility model;

[0017] Figure 4The utility model discloses a fixed seat structure schematic diagram.

[0018] Figure 5 The utility model discloses a connecting rod structure schematic diagram.

[0019] In the drawing: 1, sling; 2, support seat; 3, fixed seat; 4, fixed rod; 5, telescopic cylinder; 6, lifting plate; 7, viscous damper; 8, connecting seat; 9, support leg; 10, threaded rod; 11, threaded cylinder; 12, second bevel gear; 13, first bevel gear; 14, connecting rod; 15, driven gear; 16, drive belt; 17, drive motor; 18, drive gear. DETAILED DESCRIPTION

[0020] The utility model discloses an embodiment of the utility model will be clearly and completely described below in the embodiment of the utility model with the drawings, obviously, the described embodiment only is a part of embodiment of the utility model, not all the embodiment. Based on the embodiment in the utility model, all other embodiments that the ordinary skilled in the art obtains without making creative labor belong to the range of protection of the utility model.

[0021] Please refer to Figure 1 - Figure 5 A bridge vibration suppression structure, including sling 1, the outer side of sling 1 is installed with support seat 2, the top of support seat 2 is fixedly equipped with fixed seat 3, the outer wall of fixed seat 3 is fixedly equipped with fixed rod 4, the outer wall of fixed rod 4 is movably sleeved with telescopic cylinder 5, the top of telescopic cylinder 5 is fixedly equipped with lifting plate 6, the outer wall of lifting plate 6 is rotatably connected with viscous damper 7, the outer wall of viscous damper 7 is rotatably connected with connecting seat 8, the outer wall of support seat 2 is fixedly equipped with support leg 9, the inner chamber of telescopic cylinder 5 is rotatably connected with threaded rod 10, the outer wall of threaded rod 10 is fixedly equipped with second bevel gear 12, the inner chamber of fixed rod 4 is fixedly equipped with threaded cylinder 11, the inner chamber of telescopic cylinder 5 is rotatably connected with connecting rod 14, the outer wall of connecting rod 14 is fixedly equipped with first bevel gear 13, the outer wall of connecting rod 14 is fixedly equipped with driven gear 15, the outer wall of connecting rod 14 is rotatably connected with drive belt 16, the outer wall of telescopic cylinder 5 is fixedly equipped with drive motor 17, and the power output shaft of drive motor 17 is fixedly equipped with drive gear 18.

[0022] Through the viscous damper 7 that setting on the top of lifting plate 6 and the connecting seat 8 that setting on the outer wall of viscous damper 7, and the outer wall of connecting seat 8 is connected with the outer wall of sling 1, so that under the action of connecting seat 8 viscous damper 7 is connected with sling 1, when sling 1 is vibrated under the influence of wind force, can realize the vibration filtration under the action of both sides viscous damper 7, so that the vibration amplitude of sling 1 is reduced.

[0023] In a preferred implementation, the outer wall of the fixed rod 4 is shaped to match the inner wall of the telescopic cylinder 5, the inner wall of the threaded cylinder 11 is provided with internal threads, and the inner wall of the threaded cylinder 11 is engaged with the outer wall of the threaded rod 10.

[0024] When the threaded rod 10 is rotated under the action of the threaded cylinder 11 and the second bevel gear 12 is rotated synchronously under the action of the first bevel gear 13, the threaded rod 10 is engaged with the inner wall of the threaded cylinder 11, so that the threaded rod 10 ascends or descends along the inner wall of the threaded cylinder 11, thereby adjusting the distance between the fixed rod 4 and the telescopic cylinder 5.

[0025] In a preferred implementation, the outer wall of the second bevel gear 12 is engaged with the outer wall of the first bevel gear 13, the inner cavity of the telescopic cylinder 5 is provided with a limiting plate, and the outer wall of the threaded rod 10 is rotatably connected to the inner cavity of the limiting plate.

[0026] The second bevel gear 12 provided on the top of the threaded rod 10 and the first bevel gear 13 provided on the outer wall of the connecting rod 14 are rotated under the action of the connecting rod 14, thereby driving the second bevel gear 12 and the threaded rod 10 during the rotation of the first bevel gear 13, and controlling the lifting of the fixed rod 4 and the telescopic cylinder 5, so that the distance between the fixed seat 3 and the lifting plate 6 is increased.

[0027] In a preferred implementation, the outer wall of the driving belt 16 is rotatably connected to the outer wall of the connecting rod 14 at both ends, and the driving belt 16 is made of natural rubber.

[0028] The driving belt 16 provided on the outer wall of the connecting rod 14 is connected in series under the action of the driving belt 16, so that the connecting rods 14 on both sides can rotate synchronously, thereby more stably adjusting the distance between the fixed seat 3 and the lifting plate 6, and better installing the viscous damper 7 and the connecting seat 8 to the outer wall of the sling 1.

[0029] In a preferred implementation, the outer wall of the driving gear 18 is engaged with the outer wall of the driven gear 15, and the outer wall diameter of the driving gear 18 is smaller than the outer wall diameter of the driven gear 15.

[0030] The driving motor 17 is arranged on the outer wall of the telescopic cylinder 5, and the driving motor 17 drives the driving gear 18 to rotate, thereby driving the driven gear 15, driving the first bevel gear 13 to rotate, driving the second bevel gear 12, and driving the threaded rod 10 to move up and down along the inner wall of the threaded cylinder 11, thereby adjusting the height of the threaded rod 10, adjusting the position between the fixed seat 3 and the lifting plate 6, and enabling the two viscous dampers 7 to be connected with the cable 1 through the connecting seat 8 and to suppress the vibration of the cable 1.

[0031] In a preferred embodiment, the top of the fixed seat 3 is provided with a controller, and the controller is electrically connected with the driving motor 17.

[0032] The controller arranged on the outer wall of the fixed seat 3 can control the driving motor 17, so that the driving motor 17 drives the driving gear 18 to rotate, thereby adjusting the position of the fixed rod 4 and the telescopic cylinder 5, and adjusting the installation height of the viscous damper 7 and the connecting seat 8.

[0033] When the device is installed, the device is installed according to the position on the outer wall of the cable 1 that needs to be damped, the bottom of the support leg 9 is in contact with the bridge surface according to the height of the installation position, then the controller is started under the action of the controller, the driving motor 17 is started under the action of the driving motor 17, the driving gear 18 is driven to rotate, the driven gear 15 and the connecting rod 14 are driven to rotate, the first bevel gear 13 drives the second bevel gear 12 to rotate, the threaded rod 10 moves up and down along the inner wall of the threaded cylinder 11, the height of the threaded rod 10 is adjusted, the position between the fixed seat 3 and the lifting plate 6 is adjusted, the height of the inner cavity of the connecting seat 8 is coincided with the installation position on the outer wall of the cable 1, the two viscous dampers 7 are connected with the cable 1 through the connecting seat 8, and the vibration of the cable 1 is suppressed under the action of the viscous damper 7.

[0034] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0035] Furthermore, the terms "first", "second", etc. are used only for descriptive purposes and are not to be construed as indicating or implying relative importance or an ordered sequence. Thus, features defined with "first", "second" etc. can include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified or limited.

[0036] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication inside two elements.

[0037] The above is a further detailed description of the present application in combination with specific embodiments, and the specific implementation of the present application cannot be limited to these descriptions. For ordinary skilled persons in the technical field to which the present application belongs, without departing from the concept of the present application, a number of simple deductions or substitutions can be made.

Claims

1. A bridge vibration suppression structure, characterized by: The utility model provides a crane, including the sling, the support seat is installed to the outer side of sling, the top fixed assembly of support seat is equipped with the fixed seat, the outer wall fixed assembly of fixed seat is equipped with fixed rod, the outer wall movable sleeve of fixed rod is equipped with telescopic cylinder, the top fixed assembly of telescopic cylinder is equipped with lifting plate, the outer wall rotation of lifting plate is connected with viscous damper, the outer wall rotation of viscous damper is connected with connecting seat, the outer wall fixed assembly of support seat is equipped with support leg, the inner chamber rotation of telescopic cylinder is connected with threaded rod, the outer wall fixed assembly of threaded rod is equipped with second bevel gear, the inner chamber fixed assembly of fixed rod is equipped with threaded cylinder, the inner chamber rotation of telescopic cylinder is connected with connecting rod, the outer wall fixed assembly of connecting rod is equipped with first bevel gear, the outer wall fixed assembly of connecting rod is equipped with driven gear, the outer wall rolling of connecting rod is connected with drive belt, the outer wall fixed assembly of telescopic cylinder is equipped with drive motor, the power output shaft fixed assembly of drive motor is equipped with drive gear.

2. A bridge vibration suppression structure according to claim 1, characterized by: The outer wall shape of fixed rod and the inner wall shape of telescopic cylinder are matched in size, the inner wall of threaded cylinder is provided with internal thread, and the inner wall of threaded cylinder and the outer wall of threaded rod are engaged with each other.

3. The bridge vibration suppression structure of claim 1, wherein: The outer wall of second bevel gear and the outer wall of first bevel gear are engaged with each other, the inner chamber of telescopic cylinder is provided with a limit plate, and the outer wall of threaded rod is rotationally connected in the inner chamber of limit plate.

4. The bridge vibration suppression structure of claim 1, wherein: The both ends of drive belt outer wall are rolling connected with the outer wall of connecting rod respectively, and drive belt is prepared from natural rubber.

5. The bridge vibration suppression structure of claim 1, wherein: The outer wall of drive gear and the outer wall of driven gear are engaged with each other, and the outer wall diameter of drive gear is smaller than the outer wall diameter of driven gear.

6. The bridge vibration suppression structure of claim 1, wherein: The top of fixed seat is provided with a controller, and the controller is electrically connected with the drive motor.

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