Resistance type power transmission line windage yaw prevention iron tower

Abstract

The invention discloses a resistance type power transmission line windage yaw prevention iron tower, and relates to a windage yaw prevention iron tower. In order to solve the problem that an existing power transmission tower is a rigid tower and cannot effectively reduce windage yaw energy, the invention provides a resistance type power transmission line windage yaw prevention tower. According to the resistance type power transmission line windage yaw prevention iron tower, the resistance mechanism is arranged between the tower head and the tower body, the tower head and the tower body can rotate relatively, the resistance connecting pieces are arranged in the resistance mechanism, the resistance connecting pieces are springs or hydraulic connecting rods, and the resistance connecting pieces are symmetrically arranged so that the generated relative rotation can be restored to the original position. When windage yaw occurs, the power transmission line swings to cause relative rotation of the tower head and the tower body, the resistance connecting piece can counteract torsion of relative rotation, and the tower head and the tower body can rotate relatively, so that tension of the windage yaw phenomenon on the power transmission line is reduced, and simultaneous resonance of the iron tower and the power transmission line during windage yaw of the power transmission line is avoided; the windage yaw energy is effectively reduced, and the safety of power supply is further ensured.

Description

Technical Field

[0001] The invention relates to a windproof iron tower. Background Art

[0002] Due to freezing, strong winds and other weather conditions, ice-covered transmission lines often dance with the wind. The dancing of ice-covered conductors poses a serious threat to the safe operation of transmission lines, and is likely to cause phase-to-phase flashover, hardware damage, line tripping and power outages, or cause serious accidents such as burning conductors, pulling down poles and towers, and breaking conductors, thereby causing significant economic losses. Domestic and foreign scholars have conducted a lot of research on the dancing mechanism and protection of ice-covered conductors. The conductor dancing trajectory is simulated according to the conductor dancing acceleration, and the transmission line conductor dancing monitoring system and the transmission line conductor dancing multi-point monitoring system based on wireless sensor networks are studied. Among them, the optimal solution is the transmission line wind deviation dancing monitoring system, which is specifically based on the principle of object transfer and object acceleration for the monitoring of transmission line conductor dancing. By using digital signal processing technology, remote control technology, wireless communication technology, etc., by arranging wireless sensor networks on transmission lines, remote qualitative and quantitative analysis of transmission line dancing is realized. According to the dancing mechanism of transmission lines and the previous relevant data, it provides a basis for the power operation department to make decisions in special periods. However, the above analysis or detection can only obtain real-time data and cannot fundamentally solve the problem of wind deviation of transmission lines.

[0003] Existing transmission towers mainly include angle steel towers, steel pipe towers, steel pipe angle steel combined towers, steel pipe poles, etc. Transmission towers include wine glass type, cat head type, upper type, dry type and barrel type, etc. However, most of these towers are rigid towers with fixed vibration frequency and can only play a supporting role. When the transmission line is wind deflected, it is very easy to resonate with the transmission line at the same time, and it is impossible to effectively reduce the wind deflection energy. Summary of the invention

[0004] In order to solve the problem that the existing transmission iron tower is a rigid tower and cannot effectively reduce the wind deflection energy, the present invention proposes a resistance-type transmission line wind deflection-proof iron tower.

[0005] The resistance-type transmission line wind-proof iron tower of the present invention comprises a tower base (1), tower legs (2), a tower body (3), a tower head (4), a conductor (6), an insulator (5) and a resistance mechanism (14); the resistance mechanism (14) is arranged between the tower head (4) and the tower body (3); the resistance mechanism (14) is composed of an upper disc (7), a lower disc (8) and a rotating shaft (9); two arc-shaped holes (11) are arranged on the upper disc (7), and upper disc fixing columns (10) are respectively arranged on the upper surface of the upper disc (7) at both ends of the arc-shaped holes (11); two lower disc fixing columns (12) are arranged on the lower disc (8), and the two lower disc fixing columns (12) are respectively arranged in the arc-shaped holes (11); and a resistance connecting piece (13) is arranged between the lower disc fixing column (12) and the two upper disc fixing columns (10).

[0006] The principles and beneficial effects of the present invention are:

[0007] In the resistance-type transmission line wind deflection-proof iron tower of the present invention, a resistance mechanism (14) is arranged between a tower head (4) and a tower body (3); an upper disc (7) in the resistance mechanism (14) is fixedly connected to the tower head (4), and a lower disc (8) is fixedly connected to the tower body (3); therefore, the tower head (4) and the tower body (3) can rotate relative to each other; and a resistance connecting member (13) is arranged in the resistance mechanism (14); the resistance connecting member (13) is a spring or a hydraulic connecting rod; and the resistance connecting member (13) is symmetrically arranged to restore the relative rotation to the original position. When wind deviation occurs, the transmission line swings, causing the tower head (4) and the tower body (3) to rotate relative to each other, and the resistance connecting member (13) can offset the torque of the relative rotation, further stopping the swing and causing the tower head (4) to return to the initial position under the restoring force of the resistance connecting member (13). The tower head (4) and the tower body (3) can rotate relative to each other, reducing the pulling force of the wind deviation on the transmission line, avoiding the simultaneous resonance of the iron tower and the transmission line when the transmission line is wind deflected, effectively reducing the wind deviation energy, and further ensuring the safety of power supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a structural schematic diagram of a wind-proof iron tower for a resistance-type transmission line;

[0009] Figure 2 is a schematic structural diagram of a resistance mechanism (14);

[0010] Figure 3 for Figure 2 Top view of the . DETAILED DESCRIPTION

[0011] The technical solution of the present invention is not limited to the specific implementation modes listed below, but also includes any reasonable combination of the specific implementation modes.

[0012] Specific implementation method 1: The wind-proof iron tower for a resistance-type power transmission line in this implementation method is composed of a tower base (1), tower legs (2), a tower body (3), a tower head (4), a conductor (6), an insulator (5) and a resistance mechanism (14); the resistance mechanism (14) is arranged between the tower head (4) and the tower body (3); the resistance mechanism (14) is composed of an upper disc (7), a lower disc (8) and a rotating shaft (9); two arc-shaped holes (11) are arranged on the upper disc (7), and upper disc fixing columns (10) are respectively arranged on the upper surface of the upper disc (7) at both ends of the arc-shaped holes (11); two lower disc fixing columns (12) are arranged on the lower disc (8), and the two lower disc fixing columns (12) are respectively arranged in the arc-shaped holes (11); a resistance connecting member (13) is arranged between the lower disc fixing column (12) and the two upper disc fixing columns (10).

[0013] In the resistance-type transmission line wind deflection protection iron tower of this embodiment, a resistance mechanism (14) is arranged between the tower head (4) and the tower body (3); the upper disc (7) in the resistance mechanism (14) is fixedly connected to the tower head (4), and the lower disc (8) is fixedly connected to the tower body (3); therefore, the tower head (4) and the tower body (3) can rotate relative to each other; and a resistance connecting member (13) is arranged in the resistance mechanism (14); the resistance connecting member (13) is a spring or a hydraulic connecting rod; and the symmetrical arrangement of the resistance connecting member (13) can restore the relative rotation to the original position. When wind deviation occurs, the transmission line swings, causing the tower head (4) and the tower body (3) to rotate relative to each other, and the resistance connecting member (13) can offset the torque of the relative rotation, further stopping the swing and causing the tower head (4) to return to the initial position under the restoring force of the resistance connecting member (13). The tower head (4) and the tower body (3) can rotate relative to each other, reducing the pulling force of the wind deviation on the transmission line, avoiding the simultaneous resonance of the iron tower and the transmission line when the transmission line is wind deflected, effectively reducing the wind deviation energy, and further ensuring the safety of power supply.

[0014] Specific implementation method 2: This implementation method is different from specific implementation method 1 in that: the upper disc (7) and the lower disc (8) are coaxially stacked, and the rotating shaft (9) is arranged at the center of the upper disc (7) and the lower disc (8).

[0015] Specific implementation method three: This implementation method is different from specific implementation methods one or two in that: the upper disc (7) is fixedly connected to the tower head (4); and the lower disc (8) is fixedly connected to the tower body (3).

[0016] Specific implementation method 4: This implementation method is different from any one of specific implementation methods 1 to 3 in that: the resistance connecting member (13) is a spring or a hydraulic connecting rod.

[0017] Specific implementation mode 5: This implementation mode is different from any one of the specific implementation modes 1 to 4 in that: the two arc-shaped holes (11) are symmetrically arranged on both sides of the center of the upper disc (7).

[0018] Specific implementation method 6: This implementation method is different from any one of specific implementation methods 1 to 5 in that: the tower body (3) is arranged between the tower legs (2) and the tower head (4).

[0019] Specific implementation method seven: This implementation method is different from any one of specific implementation methods one to six in that: the tower leg (2) is arranged on the tower base (1).

[0020] Specific implementation eight: This implementation differs from any one of specific implementations one to seven in that: the insulator (5) is suspended on both sides of the tower head (4), and the conductor (6) is fixed at the lower end of the insulator (5).

[0021] Example 1

[0022] The wind-proof iron tower for a resistance-type power transmission line in this embodiment is composed of a tower base (1), tower legs (2), a tower body (3), a tower head (4), a conductor (6), an insulator (5) and a resistance mechanism (14); the tower body (3) is arranged between the tower legs (2) and the tower head (4), the tower legs (2) are arranged on the tower base (1), the insulator (5) is suspended on both sides of the tower head (4), and the conductor (6) is fixed to the lower end of the insulator (5). The resistance mechanism (14) is arranged between the tower head (4) and the tower body (3); the resistance mechanism (14) is composed of an upper disc (7), a lower disc (8) and a rotating shaft (9); the upper disc (7) is fixedly connected to the tower head (4), the lower disc (8) is fixedly connected to the tower body (3), the upper disc (7) and the lower disc (8) are coaxially stacked, the rotating shaft (9) is arranged at the center of the upper disc (7) and the lower disc (8), and the upper disc (7) is provided with two arc holes (11), the two arc holes ( 11) are symmetrically arranged on both sides of the center of the upper disc (7); upper disc fixing columns (10) are respectively arranged on the upper surface of the upper disc (7) at both ends of the arc hole (11); two lower disc fixing columns (12) are arranged on the lower disc (8), and the two lower disc fixing columns (12) are respectively arranged in the arc hole (11); a resistance connecting member (13) is arranged between the lower disc fixing column (12) and the two upper disc fixing columns (10), and the resistance connecting member (13) is a hydraulic connecting rod. In the resistance-type transmission line wind deflection protection iron tower of this embodiment, a resistance mechanism (14) is arranged between the tower head (4) and the tower body (3); the upper disc (7) in the resistance mechanism (14) is fixedly connected to the tower head (4), and the lower disc (8) is fixedly connected to the tower body (3); therefore, the tower head (4) and the tower body (3) can rotate relative to each other; and the resistance connecting member (13) arranged in the resistance mechanism (14) is a spring or a hydraulic connecting rod, and the symmetrical arrangement of the resistance connecting member (13) can restore the relative rotation to the original position. When wind deviation occurs, the transmission line swings, causing the tower head (4) and the tower body (3) to rotate relative to each other, and the resistance connecting member (13) can offset the torque of the relative rotation, further stopping the swing and causing the tower head (4) to return to the initial position under the restoring force of the resistance connecting member (13). The tower head (4) and the tower body (3) can rotate relative to each other, reducing the pulling force of the wind deviation on the transmission line, avoiding the simultaneous resonance of the iron tower and the transmission line when the transmission line is wind deflected, effectively reducing the wind deviation energy, and further ensuring the safety of power supply.

Claims

1. A resistance type transmission line windproof iron tower, characterized in that: The resistance type transmission line wind deflection protection iron tower is composed of a tower base (1), tower legs (2), a tower body (3), a tower head (4), a conductor (6), an insulator (5) and a resistance mechanism (14); the resistance mechanism (14) is arranged between the tower head (4) and the tower body (3); the resistance mechanism (14) is composed of an upper disc (7), a lower disc (8) and a rotating shaft (9); two arc holes (11) are arranged on the upper disc (7), and upper disc fixing columns (10) are respectively arranged on the upper surface of the upper disc (7) at both ends of the arc holes (11); two lower disc fixing columns (12) are arranged on the lower disc (8), and the two lower disc fixing columns (12) are respectively arranged in the arc holes (11); and a resistance connecting piece (13) is arranged between the lower disc fixing column (12) and the two upper disc fixing columns (10).

2. The wind-proof iron tower for resistance-type power transmission lines according to claim 1 is characterized in that: The upper disc (7) and the lower disc (8) are coaxially stacked, and the rotating shaft (9) is arranged at the center of the upper disc (7) and the lower disc (8).

3. The wind-proof iron tower for resistance-type power transmission lines according to claim 1 is characterized in that: The upper disc (7) is fixedly connected to the tower head (4); and the lower disc (8) is fixedly connected to the tower body (3).

4. The wind-proof iron tower for resistance-type power transmission lines according to claim 1 is characterized in that: The resistance connecting member (13) is a spring or a hydraulic connecting rod.

5. The wind-proof iron tower for resistance-type power transmission lines according to claim 1 is characterized in that: The two arc-shaped holes (11) are symmetrically arranged on both sides of the center of the upper disc (7).

6. The wind-proof iron tower for resistance-type power transmission lines according to claim 1 is characterized in that: The tower body (3) is arranged between the tower legs (2) and the tower head (4).

7. The wind-proof iron tower for resistance-type power transmission lines according to claim 1 is characterized in that: The tower legs (2) are arranged on the tower base (1).

8. The wind-proof iron tower for resistance-type power transmission lines according to claim 1 is characterized in that: The insulator (5) is suspended on both sides of the tower head (4), and the conductor (6) is fixed at the lower end of the insulator (5).

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