Distance adjusting wire clamp with wear-resistant contact surface

Abstract

The invention discloses a distance-adjusting wire clamp with a wear-resistant contact surface, which comprises two screws, a vibration reduction assembly is connected between the two screws, a wire clamp body and a wire clamp pressing plate are slidably mounted on the screws, the wire clamp body and the wire clamp pressing plate are buckled, the upper parts of the wire clamp body and the wire clamp pressing plate are arc-shaped parts, and the upper parts of the arc-shaped parts and the wire clamp pressing plate are arc-shaped parts. The two ends of the opposite sides of the two arc-shaped parts are provided with two sets of contraction assemblies, and the surfaces of the opposite sides of the two arc-shaped parts are plated with copper-based alloy spraying coatings. Vibration energy on a power transmission line can be reduced, vibration is reduced, the problem of jumper wire abrasion is solved, safe operation of the power transmission line is ensured, rapid abrasion between the contact face of the wire clamp and the contact face of a wire can be effectively reduced, damage to the wire clamp caused by atmospheric environment corrosion is prevented, and the service life of the wire clamp and the service life of the wire are prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of electric power hardware, and in particular to a distance-adjusting wire clamp with a wear-resistant contact surface. Background Art

[0002] Transmission line clamps are one of the main components for connecting, fixing and supporting overhead conductors. Under the influence of the environment (wind, icing, deicing, rainfall, temperature changes, etc.), tower fixed-frequency vibration, conductor vibration, etc., the clamps and the conductors are in a permanent relative motion state. Over time, wear and tear occurs between the conductors and the clamps, causing both or the clamp components to fail.

[0003] Overhead high-voltage transmission lines need to pass through plains, hills, mountains and other terrains to transmit electricity. Due to the different natural conditions, the hardware of the line towers in the micro-meteorological area has different degrees of wear. The adjustable wire clamps on the line towers in the wind vibration area are subject to severe wear on the contact surface between the existing adjustable wire clamps and the contact surface between the conductors due to frequent swinging, which makes the adjustable wire clamps face fatigue damage during long-term service, resulting in faults such as wear of the adjustable wire clamps and broken strands of the ground wire, which not only affects the safe operation of the transmission line, but also causes a lot of waste of manpower and financial resources. In rainy weather, water may enter the inside of the wire clamp, causing corrosion to the contact surface of the adjustable wire clamp, which is also one of the reasons for aggravating the wear.

[0004] Therefore, the applicant proposes a spacing clamp having a wear-resistant contact surface, capable of reducing vibration and being corrosion-resistant. Summary of the invention

[0005] In view of the deficiencies in the prior art, an object of the present invention is to provide a spacing clamp with a wear-resistant contact surface.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A pitch-adjustable wire clamp with a wear-resistant contact surface comprises two screws, a vibration-damping assembly is connected between the two screws, a wire clamp body and a wire clamp pressure plate are slidably mounted on the screws, the wire clamp body and the wire clamp pressure plate are interlocked, the upper parts of the wire clamp body and the wire clamp pressure plate are both arc-shaped parts, two groups of contraction assemblies are installed at both ends of the opposite sides of the two arc-shaped parts, and the surface of the opposite side of the two arc-shaped parts is plated with a copper-based alloy spray coating.

[0008] Furthermore, the vibration reduction assembly includes a shell with openings at both ends, cover plates are installed at both ends of the shell, the two screw rods respectively penetrate the two cover plates and extend into the shell, and a baffle is installed on one end, damping rubber is installed between the two baffle plates, and a spring is provided between the baffle plate and the cover plate and is sleeved on the outer surface of the screw rod.

[0009] Furthermore, the two groups of the contraction components include movable grooves opened at both ends of one side opposite to the two arc-shaped portions, a connecting groove connected to the movable groove is opened on the arc-shaped portion, a semicircular ring is slidably provided in the movable groove, an adjustment block connected to the outer wall of the semicircular ring is slidably provided in the connecting groove, and a rubber layer is installed on the inner wall of the semicircular ring.

[0010] Furthermore, two ends of the semicircular ring in one of the movable grooves are provided with clamping grooves, and two ends of the semicircular ring in the other corresponding movable groove are provided with clamping blocks matching with the clamping grooves.

[0011] Furthermore, an adjusting rod is rotatably provided in one of the communicating grooves, and a guide rod is installed in the other corresponding communicating groove.

[0012] Furthermore, an arc-shaped portion extends from one end of the adjusting rod and is connected to the knob.

[0013] Furthermore, the communicating groove is gradually inclined from a side close to the knob to a side away from the knob and toward a side close to the inner surface of the arc-shaped portion.

[0014] Furthermore, the wire clamp pressure plate is located between the vibration reduction assembly and the wire clamp body.

[0015] Furthermore, a thin hexagonal nut is threadedly connected to the screw on the side of the wire clamp pressure plate away from the wire clamp body, and a flat washer, a spring washer, a hexagonal nut and a closed pin are sequentially arranged on the screw on the side of the wire clamp body away from the wire clamp pressure plate from the inside to the outside.

[0016] Furthermore, the lower parts of the wire clamp body and the wire clamp pressure plate are both provided with extension parts, and the extension parts are provided with through holes for the screw rod to pass through.

[0017] Compared with the prior art, the present invention provides a distance adjusting wire clamp with a wear-resistant contact surface, which has the following features:

[0018] Beneficial effects:

[0019] 1. The present invention optimizes the structural stress condition, eliminates the vibration energy on the transmission line, reduces the vibration, thereby solving the problem of jumper wear and ensuring the safe operation of the transmission line by setting the vibration reduction component;

[0020] 2. The present invention further shrinks and compresses the two ends of the wire in the wire clamp by shrinking the assembly, thereby preventing water from corroding the contact surface of the wire clamp and reducing the wear problem of the contact surface of the wire clamp;

[0021] 3. The present invention coats the contact surface of the wire clamp with a copper-based alloy spray coating. Since the copper-based alloy has a lower friction coefficient and better wear resistance, the copper-based alloy can effectively reduce the rapid wear between the contact surface of the wire clamp and the contact surface of the conductor, and also prevent damage to the wire clamp caused by atmospheric corrosion, thereby extending the service life of the wire clamp and the conductor and ensuring the safe operation of the transmission line. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a front cross-sectional structural schematic diagram of the present invention;

[0023] Figure 2 yes Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0024] Figure 3 yes Figure 1 A schematic diagram of the enlarged structure at B in the middle;

[0025] Figure 4 It is a side structural schematic diagram of the wire clamp body of the present invention;

[0026] Figure 5 yes Figure 4 A schematic diagram of a cross-sectional structure of the arc-shaped portion of the center line clamp body when viewed from above;

[0027] Markings in the figure: 1. screw; 2. vibration reduction assembly; 21. shell; 22. cover plate; 23. baffle; 24. damping rubber; 25. spring; 26. sealing ring; 3. wire clamp body; 4. wire clamp pressure plate; 5. arc portion; 6. extension portion; 7. contraction assembly; 71. movable groove; 72. connecting groove; 73. semicircular ring; 74. adjustment block; 75. rubber layer; 76. slot; 77. block; 78. adjustment rod; 79. guide rod; 80. knob; 8. copper-based alloy spray coating; 9. thin hexagonal nut; 10. flat washer; 11. spring washer; 12. hexagonal nut; 13. closed pin. DETAILED DESCRIPTION

[0028] The present invention will be further described below in conjunction with the accompanying drawings and embodiments:

[0029] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the instructions and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0030] It should be noted that the directions or positional relationships indicated by terms such as “center”, “up”, “down”, “left”, “right”, “vertical”, “horizontal”, “inside” and “outside” 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. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the present invention.

[0031] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] In the description of the present invention, “plurality” means two or more than two, unless otherwise clearly and specifically defined.

[0033] The embodiment of the present invention provides a distance adjusting wire clamp having a wear-resistant contact surface, referring to Figures 1 to 5 , comprising two screw rods 1, a vibration reduction assembly 2 is connected between the two screw rods 1, a wire clamp body 3 and a wire clamp pressure plate 4 are slidably mounted on the screw rods 1, the wire clamp body 3 and the wire clamp pressure plate 4 are buckled together, the upper parts of the wire clamp body 3 and the wire clamp pressure plate 4 are both arc-shaped parts 5, two groups of shrinkage assemblies 7 are installed at both ends of the opposite side of the two arc-shaped parts 5, and the surface of the opposite side of the two arc-shaped parts 5 is plated with a copper-based alloy spray coating 8.

[0034] Specifically, by arranging the vibration reduction component 2, the vibration energy on the transmission line is eliminated and the vibration is reduced, thereby solving the problem of jumper wear and ensuring the safe operation of the transmission line; the arc portion 5 is in a semicircular ring shape; a group of shrinking components 7 are located at the same end of the opposite side of the two arc portions 5, that is, a group of shrinking components 7 are provided at the same end of the opposite side of the wire clamp body 3 and the upper part of the wire clamp pressure plate 4; by arranging the shrinking component 7, the two ends of the wire in the wire clamp are further shrunk and compressed, which can prevent water from corroding the contact surface of the wire clamp and reduce the wear problem of the contact surface of the wire clamp; the surface of the opposite side of the two arc portions 5 is plated with a copper-based alloy spray coating 8. Because the copper-based alloy has a lower friction coefficient and better wear resistance, the copper-based alloy can effectively reduce the rapid wear of the contact surface of the wire clamp and the contact surface of the wire, and also prevents the damage of the wire clamp to the atmospheric environment corrosion, so as to extend the service life of the wire clamp and the wire, and ensure the safe operation of the transmission line.

[0035] Among them, refer to Figure 1In this embodiment, the wire clamp pressure plate 4 is located between the vibration damping assembly 2 and the wire clamp body 3 .

[0036] Reference Figure 1 In this embodiment, the lower parts of the wire clamp body 3 and the wire clamp pressure plate 4 are both provided with an extension part 6, and the extension part 6 is provided with a through hole for the screw rod 1 to pass through.

[0037] Specifically, the arc portion 5 and the extension portion 6 of the wire clamp body 3 are integrally arranged; the arc portion 5 and the extension portion 6 of the wire clamp pressure plate 4 are integrally arranged; the extension portion 6 of the wire clamp body 3 and the bottom of the extension portion 6 of the wire clamp pressure plate 4 are designed to be convex and concave, which restricts the wire clamp body 3 and the wire clamp pressure plate 4 from clamping the wire, so that the wire clamp body 3 and the wire clamp pressure plate 4 will not move or deflect in the direction, and the wire clamp body 3 and the wire clamp pressure plate 4 will not twist and cause the wire to wear, thereby improving the quality of the adjustable distance wire clamp and ensuring the safe operation of the line; in this embodiment, the wire clamp body The bottom of the extension part 6 of the body 3 is convex, and the bottom of the extension part 6 of the wire clamp pressure plate 4 is concave; through the through hole opened on the extension part 6, the wire clamp body 3 and the wire clamp pressure plate 4 can be moved along the length direction of the screw 1, and the wire clamp body 3 and the wire clamp pressure plate 4 can be installed at any position of the screw 1 as needed, and the opening and closing between the wire clamp body 3 and the wire clamp pressure plate 4 can be conveniently adjusted; the wire clamp body 3 and the wire clamp pressure plate 4 are rotatably connected to the screw 1 through the through hole, and the wire clamp body 3 and the wire clamp pressure plate 4 can be adjusted to a suitable angle and then fixed on the screw 1.

[0038] Reference Figure 1 In this embodiment, a thin hexagonal nut 9 is threadedly connected to the screw rod 1 on the side of the wire clamp pressure plate 4 away from the wire clamp body 3, and a flat washer 10, a spring washer 11, a hexagonal nut 12 and a closed pin 13 are arranged on the screw rod 1 on the side of the wire clamp body 3 away from the wire clamp pressure plate 4 from the inside to the outside.

[0039] Specifically, the position of the wire clamp pressure plate 4 on the screw rod 1 is determined by a thin hexagonal nut 9; the hexagonal nut 12 is threadedly connected to the screw rod 1; a spring washer 11 is provided to prevent the engaged wire clamp body 3 and wire clamp pressure plate 4 from loosening; and a closed pin 13 is provided to prevent the hexagonal nut 12 from falling off the screw rod 1.

[0040] Reference Figure 2 In this embodiment, the vibration reduction assembly 2 includes a shell 21 with openings at both ends, and cover plates 22 are installed at both ends of the shell 21. The two screw rods 1 respectively penetrate the two cover plates 22 and extend into the shell 21. A baffle 23 is installed on one end, and a damping rubber 24 is installed between the two baffle plates 23. A spring 25 is provided between the baffle plate 23 and the cover plate 22 and is sleeved on the outer surface of the screw rod 1.

[0041] Specifically, the cover plate 22 is located at the opening of the shell 21, and the cover plate 22 and the shell 21 can be connected by threads; a sealing rubber pad is provided between the cover plate 22 and the shell 21; a damping rubber 24 is connected between the two baffles 23; the screw 1 and the cover plate 22 are slidingly connected; a sealing ring 26 of an I-shaped structure is provided at the connection between the screw 1 and the cover plate 22, which can effectively prevent rainwater and dust from entering the shell 21, thereby improving the service life of the vibration reduction assembly 2, and by providing a sealing ring 26 with an I-shaped structure, the sealing ring 26 can be effectively prevented from being displaced during the movement of the screw 1, thereby improving the stability and reliability of the use of the vibration reduction assembly 2; one end of the spring 25 is connected to the baffle 23, and the other end of the spring 25 can abut against the cover plate 22.

[0042] Through the deformation of the damping rubber 24 and the stretching or contraction of the spring 25, the swing energy is effectively absorbed and the vibration is reduced, thereby solving the problem of jumper wear and ensuring the safe operation of the transmission line.

[0043] Reference Figures 3 to 5 In this embodiment, the two groups of contraction components 7 include movable grooves 71 opened at both ends of one side opposite to the two arc-shaped portions 5, and a connecting groove 72 connected to the movable groove 71 is opened on the arc-shaped portion 5 in the movable groove 71, a semicircular ring 73 is slidably provided in the movable groove 71, and an adjustment block 74 connected to the outer wall of the semicircular ring 73 is slidably provided in the connecting groove 72, and a rubber layer 75 is installed on the inner wall of the semicircular ring 73.

[0044] Specifically, the cross-section of the connecting groove 72 is a right-angled trapezoid; the movable groove 71 is a semicircular ring, corresponding to the arc portion 5; the adjusting block 74 is a square, so that the adjusting block 74 can move in the connecting groove 72; the rubber layer 75 is made of EPDM rubber, which elastically seals both ends of the wire in the wire clamp to prevent water from entering the wire clamp and corroding the contact surface of the wire clamp, thereby reducing the wear problem of the contact surface of the wire clamp.

[0045] Reference Figure 3 In this embodiment, a clamping groove 76 is provided on both ends of the semicircular ring 73 in one of the movable grooves 71, and a clamping block 77 matching the clamping groove 76 is installed on both ends of the semicircular ring 73 in the other corresponding movable groove 71.

[0046] Specifically, the slot 76 can be engaged with the block 77; the slot 76 and the block 77 correspond one to one; an elastic sealing gasket is provided between the slot 76 and the block 77; in this embodiment, the semicircular ring 73 with the slot 76 is on the wire clamp body 3, and the semicircular ring 73 with the block 77 is on the wire clamp pressure plate 4.

[0047] Reference Figure 3In this embodiment, an adjusting rod 78 is rotatably provided in one of the communicating grooves 72 , and a guide rod 79 is installed in the other corresponding communicating groove 72 .

[0048] Specifically, the adjusting rod 78 is a threaded rod; the adjusting rod 78 is threadedly connected to the adjusting block 74; the guide rod 79 is slidably connected to the adjusting block 74; in this embodiment, the adjusting rod 78 is located in the wire clamp body 3, and the guide rod 79 is located in the wire clamp pressure plate 4.

[0049] Reference Figure 4 and Figure 5 In this embodiment, one end of the adjusting rod 78 extends out of the arc portion 5 and is connected to the knob 80. By rotating the knob 80, the adjusting rod 78 is rotated, thereby driving the adjusting block 74 and the semicircular ring 73 to move. Through the cooperation of the clamping block 77 and the clamping groove 76, the corresponding semicircular ring 73 and the adjusting block 74 are driven to move, and the corresponding adjusting block 74 slides along the guide rod 79.

[0050] Reference Figure 4 and Figure 5 In the present embodiment, the communicating groove 72 is gradually inclined from a side close to the knob 80 to a side away from the knob 80 and toward a side close to the inner surface of the arc-shaped portion 5 .

[0051] Specifically, the top surfaces of the adjusting rod 78 and the adjusting block 74 are arranged parallel to the inclination of the connecting groove 72; the bottom surface of the adjusting block 74 is connected to the outer wall of the semicircular ring 73; the knob 80 is turned so that the two semicircular rings 73 can shrink synchronously, and the two ends of the wire in the wire clamp are elastically sealed through the rubber layer 75 to prevent water from corroding the contact surface of the wire clamp, thereby reducing the wear problem of the contact surface of the wire clamp.

[0052] In summary, the present invention optimizes the structural stress condition through the deformation of the damping rubber 24 and the stretching or contraction of the spring 25, effectively absorbs the swing energy, reduces vibration, thereby solving the problem of jumper wear and ensuring the safe operation of the transmission line;

[0053] The present invention rotates the adjustment rod 78 by rotating the knob 80, thereby driving the adjustment block 74 and the semicircular ring 73 to move, and the corresponding semicircular ring 73 and the adjustment block 74 to move through the cooperation of the clamping block 77 and the clamping groove 76. The corresponding adjustment block 74 slides along the guide rod 79, so that the two semicircular rings 73 can shrink synchronously, and the two ends of the wire in the wire clamp are elastically sealed by the rubber layer 75 to prevent water from corroding the contact surface of the wire clamp, thereby reducing the wear problem of the contact surface of the wire clamp;

[0054] The present invention plates the contact surface of the wire clamp with a copper-based alloy spray coating 8. Since the copper-based alloy has a lower friction coefficient and better wear resistance, the copper-based alloy can effectively reduce the rapid wear between the contact surface of the wire clamp and the contact surface of the conductor, and also prevent the wire clamp from being damaged by atmospheric corrosion, thereby extending the service life of the wire clamp and the conductor and ensuring the safe operation of the transmission line.

[0055] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0056] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the scope of protection of the invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the present invention according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the present invention in essence, and these technical solutions also belong to the scope of protection of the present invention.

Claims

1. A wire clamp with a wear-resistant contact surface, comprising two screws (1), characterized in that: A vibration reduction assembly (2) is connected between the two screw rods (1), a wire clamp body (3) and a wire clamp pressure plate (4) are slidably mounted on the screw rods (1), the wire clamp body (3) and the wire clamp pressure plate (4) are interlocked, the upper parts of the wire clamp body (3) and the wire clamp pressure plate (4) are both arc-shaped parts (5), two groups of contraction assemblies (7) are mounted at both ends of the opposite sides of the two arc-shaped parts (5), and the surfaces of the opposite sides of the two arc-shaped parts (5) are plated with a copper-based alloy spray coating (8).

2. The adjustable wire clamp with a wear-resistant contact surface according to claim 1, characterized in that: The vibration reduction assembly (2) comprises a shell (21) with openings at both ends, cover plates (22) are installed at both ends of the shell (21), two screw rods (1) respectively penetrate the two cover plates (22) and extend into the shell (21) and are installed on one end thereof, a baffle plate (23) is installed between the two baffle plates (23), and a spring (25) is provided between the baffle plate (23) and the cover plate (22) and is sleeved on the outer surface of the screw rod (1).

3. The adjustable wire clamp with a wear-resistant contact surface according to claim 1, characterized in that: The two groups of the contraction components (7) include movable grooves (71) opened at both ends of one side opposite to the two arc-shaped portions (5); a connecting groove (72) connected to the movable groove (71) is opened on the arc-shaped portion (5) and located inside the movable groove (71); a semicircular ring (73) is slidably arranged inside the movable groove (71); an adjusting block (74) connected to the outer wall of the semicircular ring (73) is slidably arranged inside the connecting groove (72); and a rubber layer (75) is installed on the inner wall of the semicircular ring (73).

4. The adjustable wire clamp with a wear-resistant contact surface according to claim 3, characterized in that: A clamping groove (76) is provided at both ends of the semicircular ring (73) in one of the movable grooves (71), and a clamping block (77) matching with the clamping groove (76) is installed at both ends of the semicircular ring (73) in the other corresponding movable groove (71).

5. The adjustable wire clamp with a wear-resistant contact surface according to claim 4, characterized in that: An adjusting rod (78) is rotatably arranged in one of the communicating grooves (72), and a guide rod (79) is installed in the other corresponding communicating groove (72).

6. The adjustable wire clamp with a wear-resistant contact surface according to claim 5, characterized in that: One end of the adjusting rod (78) extends out of an arc-shaped portion (5) and is connected to a knob (80).

7. The adjustable wire clamp with a wear-resistant contact surface according to claim 6, characterized in that: The communicating groove (72) is gradually inclined from a side close to the knob (80) to a side away from the knob (80) and toward a side close to the inner surface of the arc-shaped portion (5).

8. The adjustable wire clamp with a wear-resistant contact surface according to claim 1, characterized in that: The wire clamp pressure plate (4) is located between the vibration reduction assembly (2) and the wire clamp body (3).

9. The adjustable wire clamp with a wear-resistant contact surface according to claim 8, characterized in that: A thin hexagonal nut (9) is threadedly connected to the screw rod (1) on the side of the wire clamp pressure plate (4) away from the wire clamp body (3), and a flat washer (10), a spring washer (11), a hexagonal nut (12) and a closed pin (13) are sequentially arranged on the screw rod (1) on the side of the wire clamp body (3) away from the wire clamp pressure plate (4) from the inside to the outside.

10. The adjustable wire clamp with a wear-resistant contact surface according to claim 1, characterized in that: The lower parts of the wire clamp body (3) and the wire clamp pressure plate (4) are both provided with an extension part (6), and the extension part (6) is provided with a through hole for the screw rod (1) to pass through.

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