Cable damper

Abstract

The utility model relates to the technical field of cable damping, in particular to a cable damper. The cable damper comprises a cable, a fixed pulley, a first damping piece and a second damping piece. One end of the cable is connected with one side of the first base, and the other end of the cable is connected with the side, away from the first base, of the second base. The fixed pulleys are arranged on the first base and the second base; the cable is in sliding contact with the fixed pulley; the first damping piece is arranged between the first base and the cable rope; and the second damping piece is arranged between the second base and the cable. The cable rope damping device can provide a damping effect on the cable rope and restrain vibration of the cable rope.

Description

Technical Field

[0001] The utility model relates to the technical field of cable shock absorption, in particular to a cable damper. Background Art

[0002] The use of cables is indispensable in bridge construction. However, the cables in use will vibrate under the influence of wind. This can easily lead to cable fatigue, affect the safety of the bridge and shorten the service life of the bridge. In addition, frequent vibration of the cable will cause premature fatigue of the cable and even damage the anti-corrosion system of the cable, greatly reducing the service life of the cable.

[0003] In summary, it is necessary to provide a cable damper to solve the problem in the prior art that the cable is prone to frequent vibration under wind force, resulting in premature fatigue and reduced service life. Utility Model Content

[0004] The utility model aims to provide a cable damper, and the specific technical solution is as follows:

[0005] A cable damper comprises a cable, a fixed pulley, a first damping member and a second damping member; one end of the cable is connected to one side of a first base, and the other end is connected to a side of a second base away from the first base; the fixed pulley is arranged on both the first base and the second base; the cable is in sliding contact with the fixed pulley; the first damping member is arranged between the first base and the cable; and the second damping member is arranged between the second base and the cable.

[0006] Optionally, the first damping member includes a first damping ball and a first auxiliary rope; one end of the first auxiliary rope is connected to the first base, and the other end is connected to the cable; the first damping ball is arranged on the first auxiliary rope.

[0007] Optionally, the first damping member further includes a first sleeve; the first sleeve is sleeved on the cable and connected to the first auxiliary cable.

[0008] Optionally, a first annular gap is provided between the inner wall of the first sleeve and the cable; and a first elastic medium is provided in the first annular gap.

[0009] Optionally, the first elastic medium includes any one of polyurethane foam and rubber.

[0010] Optionally, the second damping member includes a second damping ball and a second auxiliary rope; one end of the second auxiliary rope is connected to the second base, and the other end is connected to the cable; the second damping ball is arranged on the second auxiliary rope.

[0011] Optionally, the second damping member further includes a second sleeve; the second sleeve is sleeved on the cable and connected to the second auxiliary cable.

[0012] Optionally, a second annular gap is provided between the inner wall of the second sleeve and the cable; and a second elastic medium is provided in the second annular gap.

[0013] Optionally, the second elastic medium includes any one of polyurethane foam and rubber.

[0014] Optionally, the width of the first annular gap and the second annular gap are both 10-20 cm.

[0015] The application of the technical solution of the utility model has at least the following beneficial effects:

[0016] The utility model provides a cable damper, which can reduce friction damage to the cable caused by vibration through a fixed pulley. At the same time, a fixed pulley is provided to support the cable to provide an installation space for installing a first damping member and a second damping member. The first damping member and the second damping member can provide a damping effect for the cable, suppress the vibration of the cable, and solve the problem in the prior art that the cable is prone to frequent vibration under wind force, resulting in premature fatigue and reduced service life.

[0017] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0019] Figure 1 It is a structural schematic diagram of a cable damper in an embodiment of the utility model;

[0020] Figure 2 yes Figure 1 Sectional view at AA in the middle;

[0021] Among them, 1, cable, 2, fixed pulley, 3, first damping element, 3.1, first damping ball, 3.2, first auxiliary rope, 3.3, first sleeve, 3.4, first elastic medium, 4, second damping element, 4.1, second damping ball, 4.2, second auxiliary rope, 4.3, second sleeve, 4.4, second elastic medium, P1, first base, P2, second base. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the utility model.

[0023] Example:

[0024] See also Figure 1 A cable damper comprises a cable 1, a fixed pulley 2, a first damping member 3 and a second damping member 4; one end of the cable 1 is connected to the ground on one side of a first base P1 (specifically, a tower base arranged on one side of a river), and the other end is connected to the ground on the side of a second base P2 (specifically, a tower base arranged on the other side of the river) away from the first base P1; the fixed pulley 2 is arranged on both the first base P1 and the second base P2; the cable 1 is in sliding contact with the fixed pulley 2, which on the one hand can reduce the friction damage of the cable 1 caused by vibration through the fixed pulley 2, and on the other hand is used to support the cable 1 to provide installation space for installing the first damping member 3 and the second damping member 4; the first damping member 3 is arranged between the first base P1 and the cable 1, so as to provide a damping effect on the cable 1; the second damping member 4 is arranged between the second base P2 and the cable 1, so as to provide a damping effect on the cable 1.

[0025] The first damping member 3 includes a first damping ball 3.1 and a first auxiliary rope 3.2; one end of the first auxiliary rope 3.2 is connected to the first base P1, and the other end is connected to the cable 1; the first damping ball 3.1 is arranged on the first auxiliary rope 3.2 to enhance the damping effect of the first auxiliary rope 3.2 on the cable 1.

[0026] The first damping member 3 further comprises a first sleeve 3.3; the first sleeve 3.3 is sleeved on the cable 1 and connected to the first auxiliary rope 3.2, so as to reduce direct damage of the first auxiliary rope 3.2 to the cable 1 when the cable 1 vibrates.

[0027] See also Figure 2 A first annular gap is provided between the inner wall of the first sleeve 3.3 and the cable 1; a first elastic medium 3.4 is provided in the first annular gap. The first elastic medium 3.4 is rubber, which is convenient for improving the damping effect on the cable 1.

[0028] The second damping member 4 includes a second damping ball 4.1 and a second auxiliary rope 4.2; one end of the second auxiliary rope 4.2 is connected to the second base P2, and the other end is connected to the cable 1; the second damping ball 4.1 is arranged on the second auxiliary rope 4.2, and is used to enhance the damping effect of the second auxiliary rope 4.2 on the cable 1.

[0029] The second damping member 4 further comprises a second sleeve 4.3; the second sleeve 4.3 is sleeved on the cable 1 and connected to the second auxiliary rope 4.2, so as to reduce direct damage of the second auxiliary rope 4.2 to the cable 1 when the cable 1 vibrates.

[0030] See also Figure 2 A second annular gap is provided between the inner wall of the second sleeve 4.3 and the cable 1; a second elastic medium 4.4 is provided in the second annular gap. The second elastic medium 4.4 is rubber, which is convenient for improving the damping effect on the cable 1.

[0031] The width of the first annular gap and the second annular gap are both 15 cm, so as to provide sufficient filling space, and then fill sufficient first elastic medium 3.4 and second elastic medium 4.4 to help improve the damping effect on the cable 1.

[0032] The operating principle of the cable damper is as follows:

[0033] When the cable 1 vibrates under the influence of wind, the fixed pulley 2 can reduce the friction damage to the cable 1 caused by the vibration. The first damping member 3 and the second damping member 4 can provide a damping effect on the cable 1 to suppress the vibration of the cable 1, thereby solving the problem in the prior art that the cable 1 is prone to frequent vibration under the influence of wind, resulting in premature fatigue and reduced service life.

[0034] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A cable damper, It is characterized in that The invention comprises a cable (1), a fixed pulley (2), a first damping member (3) and a second damping member (4); one end of the cable (1) is connected to one side of a first base (P1), and the other end is connected to a side of a second base (P2) away from the first base (P1); the fixed pulley (2) is arranged on both the first base (P1) and the second base (P2); the cable (1) is in sliding contact with the fixed pulley (2); the first damping member (3) is arranged between the first base (P1) and the cable (1); and the second damping member (4) is arranged between the second base (P2) and the cable (1).

2. The cable damper according to claim 1, It is characterized in that The first damping member (3) comprises a first damping ball (3.1) and a first auxiliary rope (3.2); one end of the first auxiliary rope (3.2) is connected to the first base (P1), and the other end is connected to the cable (1); the first damping ball (3.1) is arranged on the first auxiliary rope (3.2).

3. The cable damper according to claim 2, It is characterized in that The first damping member (3) further comprises a first sleeve (3.3); the first sleeve (3.3) is sleeved on the cable (1) and connected to the first auxiliary cable (3.2).

4. The cable damper according to claim 3, It is characterized in that A first annular gap is arranged between the inner wall of the first sleeve (3.3) and the cable (1); and a first elastic medium (3.4) is arranged in the first annular gap.

5. The cable damper according to claim 4, It is characterized in that The first elastic medium (3.4) includes any one of polyurethane foam and rubber.

6. The cable damper according to claim 4 or 5, It is characterized in that The second damping member (4) comprises a second damping ball (4.1) and a second auxiliary rope (4.2); one end of the second auxiliary rope (4.2) is connected to the second base (P2), and the other end is connected to the cable (1); the second damping ball (4.1) is arranged on the second auxiliary rope (4.2).

7. The cable damper according to claim 6, It is characterized in that The second damping member (4) further comprises a second sleeve (4.3); the second sleeve (4.3) is sleeved on the cable (1) and connected to the second auxiliary cable (4.2).

8. The cable damper according to claim 7, It is characterized in that A second annular gap is arranged between the inner wall of the second sleeve (4.3) and the cable (1); and a second elastic medium (4.4) is arranged in the second annular gap.

9. The cable damper according to claim 8, It is characterized in that The second elastic medium (4.4) includes any one of polyurethane foam and rubber.

10. The cable damper according to claim 8, It is characterized in that The widths of the first annular gap and the second annular gap are both 10-20 cm.

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