External spring type damping device

Abstract

The utility model relates to fan tower drum accessories, in particular to an external spring type damping device which comprises an annular steel pipe, the section of the steel pipe is round, a plurality of balls are evenly arranged in the steel pipe, and a compression spring is arranged between every two adjacent balls to form a damping structure. The device is horizontally fixed in the fan tower drum, the damping effect is achieved through the composite effect of inertia of the ball and elastic force of the spring, and the front face and the back face of the device are not distinguished when the device is installed.

Description

Technical Field

[0001] The utility model relates to a fan tower accessory, in particular to an external spring damping device. Background Art

[0002] High-rise building dampers are a crucial structural device used to reduce vibration and sway caused by external forces such as earthquakes and wind. A damper provides resistance to movement and dissipates energy. In high-rise buildings, dampers are used to control the building's swaying during strong winds or earthquakes, thereby ensuring its stability and safety.

[0003] A damper must also be installed on the wind turbine tower. However, current dampers are inconvenient to hoist and install, and have low installation efficiency. Summary of the Invention

[0004] In order to solve the above problems, the present invention provides an external spring damping device with a simple structure and good damping effect. The technical solution adopted by the utility model is as follows:

[0005] An external spring damping device comprises an annular steel pipe with a circular cross section. A plurality of balls are evenly arranged in the steel pipe, and compression springs are provided between adjacent balls to form a damping structure.

[0006] The above-mentioned external spring damping device has a groove in the middle of the ball, and a protruding track on the inner wall of the steel pipe, and the groove of the ball can be stuck in the track.

[0007] The above-mentioned external spring damping device has a slit on the annular inner ring of the steel pipe, a bearing is sleeved on the groove, a connecting rod II is welded to the outer ring of the bearing, and the connecting rod II is connected to the corresponding compression spring through the connecting rod I, and the connecting rod I extends out from the slit.

[0008] In the above-mentioned external spring damping device, the connecting rod II and the connecting rod I are hinged.

[0009] The above-mentioned external spring damping device has a mounting seat provided on the annular outer side of the steel pipe.

[0010] The beneficial effects of the utility model are as follows: the device is fixed horizontally inside the wind turbine tower, and the damping and shock absorption effect is achieved through the combined action of the inertia of the ball and the elastic force of the spring, and the device does not distinguish between the front and back sides when being installed. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of a top-down cross-sectional structure of an embodiment of the present utility model;

[0012] Figure 2 A schematic cross-sectional view of a steel pipe according to an embodiment of the present utility model;

[0013] Figure 3 Schematic diagram of a sphere according to an embodiment of the present invention.

[0014] In the figure: 1 is a steel pipe, 2 is a compression spring, 3 is a ball, 4 is a connecting rod I, 5 is a bearing, 6 is a track, 7 is a connecting rod II, 8 is a mounting seat, and 9 is a slit. DETAILED DESCRIPTION

[0015] The technical solution of the present utility model is described in detail below with reference to the accompanying drawings.

[0016] This embodiment is an external spring damping device, such as Figure 1 As shown, it includes a ring-shaped steel pipe 1, the cross-section of the steel pipe 1 is circular with a wall thickness of 10mm and an outer diameter of 300mm. Several balls 3 with a diameter of 275mm are evenly arranged in the steel pipe 1, and compression springs 2 are provided between adjacent balls 3 to form a damping structure.

[0017] Recombination Figure 2 and Figure 3 A groove is provided in the middle of the ball 3, and a protruding track 6 is provided on the inner wall of the steel pipe 1. The groove of the ball 3 can be stuck in the track 6 and slide.

[0018] The annular inner ring of the steel pipe 1 is provided with a slit 9, and a bearing 5 is sleeved in the groove. A connecting rod II 7 is vertically welded to the outer ring of the bearing 5. The connecting rod II 7 is connected to the corresponding compression spring 2 through a connecting rod I 4. The connecting rod I 4 has a diameter of 20 mm and extends from the slit 9. The connecting rod II 7 and the connecting rod I 4 are hinged.

[0019] The outer ring of the steel tube 1 is provided with a mounting base 8 for mounting the entire device on the wind turbine tower. When the wind turbine tower is vibrated, the balls 3 roll along the track 6. The balls 3 approaching each other will squeeze the compression spring 2, thus forming a damping and shock-absorbing effect.

Claims

1. An external spring damping device, characterized in that: The invention comprises an annular steel pipe (1), wherein the cross section of the steel pipe (1) is circular, a plurality of balls (3) are evenly arranged in the steel pipe (1), and compression springs (2) are provided between adjacent balls (3) to connect them and form a damping structure.

2. The external spring damping device according to claim 1, characterized in that: A groove is provided in the middle of the ball (3), and a protruding track (6) is provided on the inner wall of the steel pipe (1). The groove of the ball (3) can be clamped in the track (6).

3. The external spring damping device according to claim 2, characterized in that: The annular inner ring of the steel pipe (1) is provided with a slit (9), a bearing (5) is sleeved on the groove, a connecting rod II (7) is welded to the outer ring of the bearing (5), the connecting rod II (7) is connected to the corresponding compression spring (2) through the connecting rod I (4), and the connecting rod I (4) extends out from the slit (9).

4. The external spring damping device according to claim 3, characterized in that: The connecting rod II (7) and the connecting rod I (4) are hinged.

5. The external spring damping device according to claim 1, characterized in that: A mounting seat (8) is provided on the annular outer side of the steel pipe (1).

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