Lever inertial damper facilitating adjustment of amplification coefficient of lever

Abstract

The utility model discloses a lever inertial damper facilitating adjustment of the amplification coefficient of a lever, and relates to the technical field of bridge vibration reduction. Comprising a mounting shell, a sliding block and a dowel bar, a guide rod is arranged in the mounting shell, two sets of connecting plates are arranged on the two sides of the sliding block, two sets of mounting bases are arranged on the two sides of the mounting shell, and a telescopic rod is arranged at the output end of an electric push rod. The electric push rod, the sliding block and other components are arranged, the mounting shell and the guide rod can limit and assist the sliding block in moving up and down for a proper distance in the mounting shell, the electric push rod operates, the telescopic rod can adjust the use height of the sliding block in the mounting shell up and down, and the use angle of the dowel bar is changed; therefore, the problem that the amplification coefficient of the lever is inconvenient to adjust to be matched with a damper for use is effectively solved, the adaptability of the device under different working conditions is effectively improved, and the optimal vibration control effect is provided.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge vibration reduction, in particular to a lever inertia damper which is convenient for adjusting the amplification coefficient of a lever. Background Art

[0002] A lever inertia damper is a device that uses a lever amplification mechanism to improve damper efficiency. It can provide additional displacement when the structure vibrates, thereby consuming more energy and reducing the vibration amplitude of the structure. The lever design allows for a larger damping force when the structural displacement is small, which can effectively control the dynamic response of the structure. Ultra-long span bridges have dense modes and low damping, and are prone to various forms of vibration under external loads. Vortex-induced vibration of bridges is common. Although the self-limiting characteristics of vortex-induced vibration will not directly lead to structural dynamic instability and damage, large-amplitude vibration will endanger pedestrian comfort, driving safety and component fatigue life, affecting the applicability and durability of the structure and causing huge social impact. At present, it is difficult to adjust the length of the lever in the lever amplification device, and there is a problem that it is difficult to change the amplification coefficient of the lever to match the use of the damper. If the length of the lever is difficult to adjust, the amplification coefficient may become fixed, which limits the adaptability of the device under different working conditions. The fixed amplification coefficient may not provide the optimal vibration control effect in some cases, especially when the dynamic characteristics of the structure change greatly. In order to solve this technical problem, the utility model proposes a lever inertia damper that is easy to adjust the amplification coefficient of the lever. Utility Model Content

[0003] The main purpose of the utility model is to provide a lever inertia damper which is convenient for adjusting the amplification factor of the lever, and can effectively solve the problems mentioned in the background technology.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A lever inertia damper that is convenient for adjusting the amplification coefficient of the lever includes a mounting shell, a sliding block and a force transmission rod. A guide rod is provided inside the mounting shell, and the guide rod movably passes through the interior of the sliding block. The sliding block is movably provided inside the mounting shell. Two groups of connecting plates are provided on both sides of the sliding block. Two groups of mounting seats are provided on both sides of the mounting shell. An electric push rod is provided on the top of the mounting seat, and a telescopic rod is provided at the output end of the electric push rod.

[0006] Preferably, positioning bolts are provided through the internal threads of the mounting shell, and four groups of positioning bolts are provided.

[0007] Preferably, two groups of guide grooves are symmetrically opened inside the installation shell, and the connecting plate movably passes through the inside of the guide grooves.

[0008] Preferably, a coupling tube is provided at the bottom end of the mounting seat, and the coupling tube is detachably connected to the telescopic rod thread.

[0009] Preferably, a No. 1 connecting ear plate is detachably provided on the back side of the sliding block, and one end of the force transmission rod is rotatably connected to the No. 1 connecting ear plate.

[0010] Preferably, the other end of the force transmission rod is rotatably connected to a second connecting ear plate.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] In the utility model, by providing components such as an electric push rod and a sliding block, the mounting shell and the guide rod can be used to limit the auxiliary sliding block to move up and down a suitable distance inside the mounting shell. Through the operation of the electric push rod, the telescopic rod can adjust the use height of the sliding block inside the mounting shell up and down, change the use angle of the force transmission rod, and thus adjust the amplification coefficient of the lever, effectively solving the problem that the amplification coefficient of the lever is inconvenient to adjust to match the use of the damper, effectively improving the adaptability of the device under different working conditions, and providing the best vibration control effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structure of the lever inertia damper of the utility model, which is convenient for adjusting the amplification factor of the lever;

[0014] Figure 2 This is a schematic diagram of the overall structure of one side of the lever inertia damper of the utility model, which is convenient for adjusting the amplification factor of the lever;

[0015] Figure 3 This is a schematic diagram of the mounting shell structure of the lever inertia damper for facilitating adjustment of the lever magnification factor of the utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the sliding block of the lever inertia damper for facilitating adjustment of the amplification factor of the lever according to the present invention;

[0017] Figure 5 The utility model is a lever inertia damper which is convenient for adjusting the amplification coefficient of the lever Figure 1 Schematic diagram of the enlarged local structure at point A.

[0018] In the figure: 1. Mounting shell; 2. Positioning bolt; 3. Guide groove; 4. Guide rod; 5. Mounting seat; 6. Electric push rod; 7. Telescopic rod; 8. Sliding block; 9. Connecting plate; 10. Coupling tube; 11. Connecting ear plate No. 1; 12. Force transmission rod; 13. Connecting ear plate No. 2. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0020] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 As shown, the lever inertia damper is convenient for adjusting the amplification factor of the lever;

[0021] A lever inertia damper that is convenient for adjusting the amplification factor of the lever includes a mounting shell 1, a sliding block 8 and a force transmission rod 12. A guide rod 4 is provided inside the mounting shell 1, and the guide rod 4 movably passes through the interior of the sliding block 8. The sliding block 8 is movably provided inside the mounting shell 1. Two groups of connecting plates 9 are provided on both sides of the sliding block 8. Two groups of mounting seats 5 are provided on both sides of the mounting shell 1. An electric push rod 6 is provided at the top of the mounting seat 5, and a telescopic rod 7 is provided at the output end of the electric push rod 6.

[0022] The sliding block 8 is movably arranged inside the mounting shell 1, and the guide rod 4 inside the mounting shell 1 is movably passed through the interior of the sliding block 8. The mounting shell 1 and the guide rod 4 can be used to limit the auxiliary sliding block 8 to move up and down a suitable distance inside the mounting shell 1. The mounting seats 5 set on both sides of the mounting shell 1 are used to provide installation support for the electric push rod 6. The electric push rod 6 is electrically connected to the bridge control component. Through the operation of the electric push rod 6, the telescopic rod 7 can move up and down on both sides of the mounting shell 1. After the telescopic rod 7 is threadedly connected to the coupling tube 10 set at the bottom end of the connecting plate 9, and the connecting plate 9 is symmetrically arranged on both sides of the sliding block 8, the operation of the electric push rod 6 can adjust the use height of the sliding block 8 inside the mounting shell 1.

[0023] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 As shown, the lever inertia damper is convenient for adjusting the amplification factor of the lever;

[0024] The internal thread of the mounting shell 1 is penetrated by a positioning bolt 2, and four groups of positioning bolts 2 are provided. Two groups of guide grooves 3 are symmetrically penetrated inside the mounting shell 1. The connecting plate 9 movably penetrates the inside of the guide groove 3. The bottom end of the mounting seat 5 is provided with a coupling tube 10, and the coupling tube 10 is detachably connected to the telescopic rod 7 through a thread. The back of the sliding block 8 is detachably provided with a No. 1 connecting ear plate 11. One end of the force transmission rod 12 is rotatably connected to the No. 1 connecting ear plate 11, and the other end of the force transmission rod 12 is rotatably connected to the No. 2 connecting ear plate 13.

[0025] The mounting shell 1 is the main assembly component of the lever inertia damper with an amplification coefficient. The four sets of positioning bolts 2 arranged inside the mounting shell 1 can position the mounting shell 1 on the bridge pier, and the connecting plate 9 is movable through the guide groove 3. The guide groove 3 provides the connecting plate 9 with an up and down sliding space of suitable distance. The coupling tube 10 set at the bottom end of the connecting plate 9 is threadedly connected with the telescopic rod 7, so that the telescopic rod 7 can be fixedly connected to the connecting plate 9. The No. 1 connecting ear plate 11 is fixedly mounted on the back of the sliding block 8, and the No. 2 connecting ear plate 13 is fixedly connected to the main beam of the bridge by bolts or the like. The two ends of the force transmission rod 12 are respectively rotated to connect with the No. 1 connecting ear plate 11 and the No. 2 connecting ear plate 13. By adjusting the use position of the sliding block 8 inside the mounting shell 1, the use angle of the force transmission rod 12 can be changed, thereby adjusting the amplification coefficient of the lever, effectively solving the problem that the amplification coefficient of the lever is inconvenient to adjust to match the use of the damper, effectively improving the adaptability of the device under different working conditions, and providing the best vibration control effect.

[0026] During use, the mounting shell 1 is fixedly installed on the bridge pier using the positioning bolts 2, the No. 2 connecting ear plate 13 is connected to the main beam of the bridge, and the telescopic rod 7 at the output end of the electric push rod 6 is threadedly connected to the coupling tube 10 provided at the bottom end of the connecting plate 9, so that the electric push rod 6 and the connecting plate 9 are threadedly detachably connected, and the mounting shell 1 and the guide rod 4 can be used to limit the auxiliary sliding block 8 to move up and down a suitable distance inside the mounting shell 1. Through the operation of the electric push rod 6, the telescopic rod 7 can adjust the use height of the sliding block 8 inside the mounting shell 1 up and down, change the use angle of the force transmission rod 12, and thus adjust the amplification coefficient of the lever, effectively solving the problem that the amplification coefficient of the lever is inconvenient to adjust to match the use of the damper, effectively improving the adaptability of the device under different working conditions, and providing the best vibration control effect.

[0027] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A lever inertia damper for facilitating adjustment of a lever amplification factor, comprising a mounting housing (1), a sliding block (8) and a force transmission rod (12), characterized in that: A guide rod (4) is provided inside the mounting shell (1), and the guide rod (4) movably passes through the interior of the sliding block (8). The sliding block (8) is movably provided inside the mounting shell (1). Two groups of connecting plates (9) are provided on both sides of the sliding block (8). Two groups of mounting seats (5) are provided on both sides of the mounting shell (1). An electric push rod (6) is provided at the top end of the mounting seat (5), and a telescopic rod (7) is provided at the output end of the electric push rod (6).

2. The lever inertia damper for facilitating adjustment of the lever magnification coefficient according to claim 1, characterized in that: Positioning bolts (2) are provided through the internal threads of the mounting shell (1), and four groups of the positioning bolts (2) are provided.

3. The lever inertia damper for facilitating adjustment of the lever magnification factor according to claim 1, characterized in that: Two groups of guide grooves (3) are symmetrically formed inside the installation shell (1), and the connecting plate (9) movably penetrates the inside of the guide grooves (3).

4. The lever inertia damper for facilitating adjustment of the lever magnification factor according to claim 1, characterized in that: A coupling tube (10) is provided at the bottom end of the mounting seat (5), and the coupling tube (10) is detachably connected to the telescopic rod (7) via a thread.

5. The lever inertia damper with easy adjustment of lever magnification coefficient according to claim 1, characterized in that: A first connecting ear plate (11) is detachably provided on the back of the sliding block (8), and one end of the force transmission rod (12) is rotatably connected to the first connecting ear plate (11).

6. The lever inertia damper with easy adjustment of lever magnification coefficient according to claim 1, characterized in that: The other end of the force transmission rod (12) is rotatably connected to a second connecting ear plate (13).

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