A windproof eccentric weight hammer piece and windproof eccentric weight hammer device

Abstract

The invention discloses a wind-proof weight hammer piece, comprising a T-shaped weight hammer piece body, the weight hammer piece body is divided into a horizontal part and a vertical part, and the horizontal part is divided into a first half and a second half with the vertical part as a boundary, wherein the horizontal length of the first half is greater than the second half, so that the center of gravity of the weight hammer piece body is arranged close to the first half; when installed, the center of gravity of the weight hammer piece body is far away from the tower body side; the weight hammer piece body is provided with a lower end fixing hole at the midline position of the vertical part, and an upper end fixing hole is provided at the horizontal part corresponding to the lower end fixing hole; wherein the lower end fixing hole is a circular hole, and the upper end fixing hole is an arc-shaped long hole with the lower end fixing hole as the center of the circle; the weight hammer piece body is provided with a weight hammer piece body stacking structure at the first half or the second half, and the weight hammer piece body stacking structure forms an energy-consuming connection mechanism. The invention can effectively prevent and control wind deflection flashover, and through the energy-consuming connection mechanism between the weight hammer pieces, the wind energy acting on the conductor can be quickly absorbed and consumed.

Description

Technical Field

[0001] The invention relates to the technical field of power transmission line operation and maintenance, and in particular to a windproof eccentric weight hammer piece and a windproof eccentric weight hammer device. Background Art

[0002] Under the influence of strong wind, the conductor deflects excessively to the side of the tower. When the heavy rain reduces the air insulation and the lightning activity generates induced voltage on the conductor, the tower is discharged, causing the line to trip. This is called wind deflection flashover. In recent years, wind deflection flashover has occurred frequently and has remained high. In order to build a stronger power grid, it is urgent to optimize the wind deflection protection of transmission line towers.

[0003] The solutions adopted by existing technologies are generally divided into three categories:

[0004] 1. Install windproof insulated cables. This solution has the following disadvantages: the line hardware is susceptible to fatigue damage due to long-term stress. Therefore, installing windproof insulated zippers poses a safety hazard to line operation.

[0005] 2. Use new wind-proof insulators. Wind-proof insulators mainly rely on the bending moment generated at the root of the insulator to resist wind loads. The force is relatively concentrated, and fatigue damage is easy to occur at the connection for a long time.

[0006] 3. Install a heavy hammer. A heavy hammer is a traditional and safe way to prevent wind deflection, but the effect of traditional heavy hammers is limited.

[0007] The disclosed patent also relates to improvements to the windproof weight.

[0008] The invention with announcement number CN109347038B discloses a wind-proof deflection suspension weight device for high-voltage conductor jumpers, which solves the technical problems of inconvenient installation, poor stability and serious safety hazards of suspended weights in the prior art. The present invention includes a weight piece and a wire clamp connection unit connecting the weight piece and the pole tower, the weight piece is connected to the wire clamp connection unit through a ball head and a bowl head that match each other, the weight piece includes a center rod and a weight piece assembly that is detachably connected to the periphery of the center rod, each weight piece includes at least one weight piece assembly, and the weight piece assembly is connected to a detachable pulley assembly. The present invention is convenient for transportation, installation and maintenance, can avoid tip discharge, and has low wind resistance, and has the effect of reliably stabilizing the conductor jumper. It also has the effect of preventing wind deflection of suspended weights to stabilize conductors and jumpers, and ensures the spatial safety distance of the live conductor conductor from the pole tower, guy wires and nearby objects.

[0009] The utility model with announcement number CN201829903U discloses a transmission line single-line clamp plus weight anti-wind deflection device, including a weight of a rectangular structure, characterized in that a nail hole is provided in the middle and upper part of the weight, and balance holes are provided on both sides of the nail hole, and the weight is fixedly connected to the balance frame through the two balance holes. The weight has a simple structure, is easy to install, has low construction cost, and is also low in production cost.

[0010] The utility model with announcement number CN205304179U discloses an adaptive windproof weight device for distribution network lines, including a weight, at least one fixed pulley installed on the cross arm of the pole, and at least one non-metallic pull wire, one end of the non-metallic wire is provided for connecting the wire hanging end of the wire, and the other end is connected to the weight after passing through the fixed pulley, and the weight body is a cylinder sleeved on the pole, and the inner wall of the cylinder is provided with a roller, so that the weight can slide freely on the surface of the pole, and the wire can be lowered by sliding upward, and the wire can be reset by sliding downward. The device can ensure the operation safety of the line during normal operation, and the wire can be loosened by sliding the weight when the typhoon exceeds the design working condition, reducing the load effect of the wire on the pole, and when the typhoon passes or the wind speed decreases to the design working condition range, the weight returns to its position, the wire is reset, and the normal operation state is restored.

[0011] The above technical solutions are significantly different from the technical solutions of the present application. Summary of the invention

[0012] The object of the present invention is to provide a windproof eccentric weight hammer piece and a windproof eccentric weight hammer device.

[0013] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0014] A windproof weighted hammer piece, comprising a T-shaped weighted hammer piece body, wherein the weighted hammer piece body is divided into a horizontal portion and a vertical portion, and the horizontal portion is divided into a first half portion and a second half portion with the vertical portion as a boundary, wherein the horizontal length of the first half portion is greater than that of the second half portion, so that the center of gravity of the weighted hammer piece body is arranged close to the first half portion; when installed, the center of gravity of the weighted hammer piece body is away from the side of the tower body;

[0015] The weight hammer body is provided with a lower end fixing hole at the midline position of the vertical part, and an upper end fixing hole is provided at the horizontal part corresponding to the lower end fixing hole; wherein the lower end fixing hole is a circular hole, and the upper end fixing hole is an arc-shaped long hole with the lower end fixing hole as the center of the circle;

[0016] The weight hammer sheet is provided with a weight hammer sheet stacking structure at the first half or the second half, and the weight hammer sheet stacking structure includes a positioning protrusion arranged on one side of the weight hammer sheet, and a positioning groove arranged relatively on the other side of the weight hammer sheet, and the diameter of the positioning groove is larger than the positioning protrusion; when the weight hammer sheets are stacked, the positioning protrusion of one weight hammer sheet is inserted into the positioning groove of another weight hammer sheet adjacent to it, and the positioning protrusion and the corresponding positioning groove are connected by a damping medium to form an energy-consuming connection mechanism.

[0017] The damping medium is a spring group arranged around the positioning protrusion.

[0018] The positioning protrusion is cylindrical.

[0019] The positioning groove is circular.

[0020] The present invention also discloses a windproof eccentric weight hammer device, comprising the windproof eccentric weight hammer piece and a connecting plate, wherein the wire passes through the reserved holes around the connecting plate, the windproof eccentric weight hammer pieces are symmetrically stacked on both sides of the connecting plate, and a lower connecting rod passes through the lower end fixing hole and an upper connecting rod passes through the upper end fixing hole, and the lower connecting rod and the upper connecting rod keep the windproof eccentric weight hammer pieces on both sides of the connecting plate on the connecting plate.

[0021] Beneficial effects of the present invention:

[0022] The windproof eccentric weight hammer piece of the present invention is different from the traditional weight hammer piece and adopts an eccentric design. The center of gravity is far away from the tower body side, and a moment away from the tower body is applied to the conductor.

[0023] The weight pieces are connected to the connecting plate by upper and lower fixing holes. The lower fixing hole is a round hole, forming a strong constraint, which does not allow relative displacement between the weight pieces; the upper fixing hole is an arc-shaped long hole, forming a weak constraint, which allows the weight pieces to swing left and right and have relative displacement, thereby achieving the purpose of absorbing wind energy and reducing wind deviation, and then with the energy-consuming connection mechanism between the weight pieces, the absorbed wind energy can be quickly dissipated.

[0024] The present invention can effectively prevent and control wind deflection flashover, and can quickly absorb and consume wind energy acting on the conductor through the energy-consuming connection mechanism between the weight hammer sheets. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a front view of the first embodiment of the present invention;

[0026] Figure 2 yes Figure 1 Schematic diagram of the AA section;

[0027] Figure 3 It is a side view of the second embodiment of the present invention. DETAILED DESCRIPTION

[0028] The specific implementation modes of the present invention are described in detail below with reference to the accompanying drawings.

[0029] Embodiment 1:

[0030] like Figure 1 to Figure 2As shown, this embodiment discloses a windproof weight hammer piece, including a T-shaped weight hammer piece body, the weight hammer piece body is divided into a horizontal part and a vertical part 13, and the horizontal part is divided into a first half part 11 and a second half part 12 with the vertical part as the boundary, wherein the horizontal length of the first half part 11 is greater than the second half part 12, so that the center of gravity of the weight hammer piece body is set close to the first half part 11; when installed, the center of gravity of the weight hammer piece body is away from the side of the tower body.

[0031] The weight hammer body is provided with a lower fixing hole 2 at the midline position of the vertical part, and an upper fixing hole 3 is provided at the horizontal part corresponding to the lower fixing hole 2; wherein the lower fixing hole 2 is a circular hole, and the upper fixing hole 3 is an arc-shaped long hole with the lower fixing hole 2 as the center of the circle.

[0032] The weight hammer sheet is provided with a weight hammer sheet stacking structure at the first half 11, and the weight hammer sheet stacking structure includes a positioning protrusion 4 arranged on one side of the weight hammer sheet, and a positioning groove 5 arranged opposite to each other on the other side of the weight hammer sheet, and the diameter of the positioning groove 5 is larger than the positioning protrusion 4; when the weight hammer sheets are stacked, the positioning protrusion 4 of one weight hammer sheet is inserted into the positioning groove 5 of another weight hammer sheet adjacent to it, and the positioning protrusion 4 is connected to the corresponding positioning groove 5 by a damping medium 6 to form an energy-consuming connection mechanism.

[0033] In this embodiment, the damping medium 6 is a spring group arranged around the positioning protrusion.

[0034] In this embodiment, the positioning protrusion 4 is cylindrical, and the positioning groove 5 is circular.

[0035] Embodiment 2:

[0036] like Figure 3 As shown, this embodiment discloses a windproof eccentric weight hammer device, including the windproof eccentric weight hammer piece 1 described in Example 1, and also includes a connecting plate 7, the wires pass through the reserved holes around the connecting plate 7, the windproof eccentric weight hammer pieces 1 are symmetrically stacked on both sides of the connecting plate 7, and a lower connecting rod 8 passes through the lower end fixing hole 2 and an upper connecting rod 9 passes through the upper end fixing hole 3, the lower connecting rod 8 and the upper connecting rod 9 keep the windproof eccentric weight hammer pieces 1 on both sides of the connecting plate 7 on the connecting plate 7.

[0037] The windproof eccentric weight hammer piece disclosed by the invention is different from the traditional weight hammer piece and adopts an eccentric design. The center of gravity is far away from the tower body side, and a moment away from the tower body is applied to the conductor.

[0038] The weight pieces are connected to the connecting plate by upper and lower fixing holes. The lower fixing hole 2 is a round hole, forming a strong constraint, and does not allow relative displacement between the weight pieces; the upper fixing hole 3 is an arc-shaped long hole, forming a weak constraint, allowing the weight pieces to swing left and right and have relative displacement, thereby achieving the purpose of absorbing wind energy and reducing wind deviation, and then with the energy-consuming connection mechanism between the weight pieces, the absorbed wind energy is quickly dissipated.

[0039] The present invention can effectively prevent and control wind deflection flashover, and can quickly absorb and consume wind energy acting on the conductor through the energy-consuming connection mechanism between the weight hammer sheets.

[0040] The above embodiments are only used to illustrate rather than limit the technical solutions of the present invention. Although the present invention is described in detail with reference to the above embodiments, those skilled in the art should understand that the present invention can still be modified or replaced by equivalents. Any modification or partial replacement that does not depart from the spirit and scope of the present invention should be included in the scope of the claims of the present invention.

[0041] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by the terms "upper", "lower", "front", "back", "left", "right", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the protection content of the present invention.

Claims

1. A windproof weighted hammer, characterized in that: The weight hammer body is T-shaped, the weight hammer body is divided into a horizontal part and a vertical part, and the horizontal part is divided into a first half and a second half with the vertical part as a boundary, wherein the horizontal length of the first half is greater than that of the second half, so that the center of gravity of the weight hammer body is arranged close to the first half; when installed, the center of gravity of the weight hammer body is far away from the side of the tower body; The weight hammer body is provided with a lower end fixing hole at the midline position of the vertical part, and an upper end fixing hole is provided at the horizontal part corresponding to the lower end fixing hole; wherein the lower end fixing hole is a circular hole, and the upper end fixing hole is an arc-shaped long hole with the lower end fixing hole as the center of the circle; The weight hammer sheet is provided with a weight hammer sheet stacking structure at the first half or the second half, and the weight hammer sheet stacking structure includes a positioning protrusion arranged on one side of the weight hammer sheet, and a positioning groove arranged relatively on the other side of the weight hammer sheet, and the diameter of the positioning groove is larger than the positioning protrusion; when the weight hammer sheets are stacked, the positioning protrusion of one weight hammer sheet is inserted into the positioning groove of another weight hammer sheet adjacent to it, and the positioning protrusion and the corresponding positioning groove are connected by a damping medium to form an energy-consuming connection mechanism.

2. The windproof weight-biased hammer according to claim 1, characterized in that: The damping medium is a spring group arranged around the positioning protrusion.

3. The windproof weight-biased hammer according to claim 1 or 2, characterized in that: The positioning protrusion is cylindrical.

4. The windproof weight-biased hammer piece according to claim 1 or 2, characterized in that: The positioning groove is circular.

5. A windproof weight hammer device, characterized in that: It comprises the windproof and unbalanced weighted hammer piece as described in any one of claims 1 to 4, and also comprises a connecting plate, the wires pass through the reserved holes around the connecting plate, the windproof and unbalanced weighted hammer pieces are symmetrically stacked on both sides of the connecting plate, and a lower connecting rod passes through the lower end fixing hole and an upper connecting rod passes through the upper end fixing hole, and the lower connecting rod and the upper connecting rod hold the windproof and unbalanced weighted hammer pieces on both sides of the connecting plate on the connecting plate.

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