Line suspension clamp for high-voltage line

Abstract

The invention provides a line suspension clamp for a high-voltage line. The line suspension wire clamp for the high-voltage line comprises a wire clamp ship body; the locking pieces penetrate through the two sides of the wire clamp ship body and extend out of the wire clamp ship body to the outside, and the locking pieces are fixedly installed through bolts; the four clamping mechanisms are symmetrically and fixedly installed on the inner wall of the wire clamp ship body, each clamping mechanism comprises a telescopic piece, and the four telescopic pieces are symmetrically and fixedly installed on the inner wall of the wire clamp ship body. According to the line suspension clamp for the high-voltage line, a wire is fixedly clamped through the telescopic piece, buffering is performed through the spring and the clamping plate, the wire is prevented from being damaged due to excessive friction caused by long-time use and extreme weather such as strong wind, meanwhile, the spring can be dynamically adjusted, the wire is prevented from being damaged due to excessive clamping force, and the service life of the wire is prolonged. When the lead expands with heat and contracts with cold in extremely cold and hot weather, the spring can buffer the stress.

Description

Technical Field

[0001] The invention relates to the field of wire clamps for high-voltage lines, and in particular to a line suspension wire clamp for high-voltage lines. Background Art

[0002] With the continuous development of the power industry, the construction scale of overhead transmission lines is getting larger and larger. In order to efficiently and safely transmit electric energy from power plants to various power consumption areas, a large number of transmission line towers are needed to support and fix the conductors. Suspension clamps are key components for fixing conductors on insulator strings of straight towers or suspending lightning conductors on straight towers. Their importance is becoming increasingly prominent. At the same time, the construction of high-voltage AC and DC lines has put forward higher requirements for suspension clamps. High-voltage lines have the characteristics of high altitude, large height difference, and large span difference. Traditional suspension clamps may have problems such as insufficient strength and grip failure under such working conditions, leading to safety accidents such as ground wire slippage. Therefore, it is necessary to develop more reliable and high-strength suspension clamps to meet the needs of high-voltage power transmission.

[0003] The suspension clamp is an important hardware used in overhead power lines or substations in the power system. Its main function is to suspend the conductor on the insulator string through the connecting hardware. It can also be used to support the transposed conductor on the transposed tower and fix the non-straight tower jumper. The suspension clamp is usually composed of a hanger, U-bolts, a clamp hull, a pressure plate and other components. Its working principle is to rely on the clamping force of the hull on the conductor to bear the vertical load and ensure that the conductor does not slide or detach from the insulator string when the line is operating normally or broken.

[0004] Suspension wire clamps are widely used in high-voltage lines, but the existing suspension wire clamps have a single structure. When placing the conductor, the conductor is in direct contact with the suspension wire clamp hull. Long-term use and extreme weather conditions such as strong winds will cause the conductor to shake. Therefore, the conductor and the suspension wire clamp hull will cause long-term friction and damage the line. When the wear accumulates to a certain extent, it may cause the overhead wire to break or even fall off, causing a power outage in the transmission line. The risk factor is greatly increased with time.

[0005] Therefore, it is necessary to provide a line suspension clamp for a high voltage line to solve the above technical problems. Summary of the invention

[0006] The invention provides a line suspension clamp for a high-voltage line, which solves the problem of increased risk factor and damage to the line due to friction between the line and the suspension clamp hull.

[0007] In order to solve the above technical problems, the present invention provides a line suspension clamp for a high voltage line, comprising: a clamp hull;

[0008] A locking member, the locking member passes through both sides of the wire clamp hull and extends out of the wire clamp hull to the outside, and the locking member is fixed and installed by bolts;

[0009] A clamping mechanism, wherein two of the clamping mechanisms are symmetrically fixedly mounted on the inner wall of the clamp hull, and the clamping mechanism comprises a telescopic member, wherein two of the telescopic members are symmetrically fixedly mounted on the inner wall of the clamp hull, a bearing plate is fixedly mounted on one end of the two telescopic members, two springs are fixedly mounted on one side of the bearing plate, and a clamping plate is fixedly mounted on one end of the two springs;

[0010] A bottom plate, the bottom plate is fixedly mounted on the bottom of the wire clamp hull;

[0011] A conductor platform is fixedly mounted on the top of the base plate.

[0012] Preferably, an insulating pad is fixedly mounted on one side of the clamping plate, and the insulating pad is made of natural rubber.

[0013] Preferably, a winding mechanism is symmetrically fixedly installed on the top of the base plate, and the winding mechanism includes a disc. Two of the discs are fixedly installed on the top of the base plate through a fixing column. Circular grooves are provided on opposite sides of the two discs. Six rotating blocks are slidably connected inside the two circular grooves, and a pre-twisted wire reel is fixedly installed on the bottom of the six rotating blocks.

[0014] Preferably, a plurality of shifting shafts are fixedly mounted on one side of the pre-twisted wire reel.

[0015] Preferably, a plurality of wire holes are provided inside the pre-twisted wire reel.

[0016] Preferably, platform transverse grooves are provided on both sides of the wire platform, and both of the two supporting plates are provided with openings.

[0017] Preferably, a pulling mechanism is fixedly installed at the bottom of the wire platform, and the pulling mechanism includes a worm, the worm is fixedly installed at the bottom of the wire platform through a rotating bracket, one end of the worm is fixedly connected to a rotating disk, the rotating disk is adaptively installed with the dial shaft, the worm is meshed with a worm wheel, a worm wheel shaft is fixedly installed inside the worm wheel, the bottom of the worm wheel shaft is rotatably connected with a connecting column, the connecting column is fixedly installed on the top of the base plate, one end of the worm wheel shaft is sleeved with a gear, a rack bearing plate is fixedly installed on the top center of the base plate, a rack is slidably connected inside the rack bearing plate, the gear meshes with the rack, one end of the rack passes through the bearing plate and extends out of the bearing plate, and one end of the rack extending out of the bearing plate is fixedly installed with a pulling block, and the pulling block is adaptively installed with the bearing plate.

[0018] Compared with the related art, the present invention provides a high voltage line suspension clamp with the following features:

[0019] Beneficial effects:

[0020] The present invention provides a line suspension wire clamp for a high-voltage line, which fixes and clamps the wire through a telescopic member, and performs buffering through a spring and a clamping plate, thereby avoiding damage to the wire due to excessive friction in long-term use and extreme weather such as strong winds. At the same time, the spring can be dynamically adjusted to avoid damage to the wire due to excessive clamping force. When the wire expands and contracts in extremely cold and hot weather, the spring can also buffer such stress. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic structural diagram of a preferred embodiment of a line suspension clamp for a high-voltage line provided by the present invention;

[0022] Figure 2 for Figure 1 The installation diagram of the clamping mechanism shown;

[0023] Figure 3 for Figure 1 A schematic structural diagram of the clamping mechanism shown;

[0024] Figure 4 It is a structural schematic diagram of a second embodiment of a line suspension clamp for a high-voltage line;

[0025] Figure 5 for Figure 4 The installation diagram of the winding mechanism shown;

[0026] Figure 6 for Figure 4 The installation diagram of the winding mechanism and the toggle shaft shown;

[0027] Figure 7 for Figure 4 The structural schematic diagram of the winding mechanism shown;

[0028] Figure 8 for Figure 4 The installation diagram of the pulling mechanism shown;

[0029] Fig. 9 for Figure 8 The structural schematic diagram of the pulling mechanism is shown.

[0030] Numbers in the figure: 1. wire clamp hull, 2. locking member, 3. clamping mechanism, 301. telescopic member, 302. bearing plate, 303. spring, 304. clamping plate, 4. bottom plate, 5. winding mechanism, 501. disc, 502. circular groove, 503. rotating block, 504. pre-twisted wire reel, 6. toggle shaft, 7. insulating pad, 8. pulling mechanism, 801. worm, 802. rotating disc, 803. worm wheel, 804. worm wheel shaft, 805. gear, 806. connecting column, 807. rack, 808. rack bearing plate, 809. pulling block, 9. wire hole, 10. wire platform, 11. platform cross groove. DETAILED DESCRIPTION

[0031] The present invention will be further described below in conjunction with the accompanying drawings and implementation modes.

[0032] First embodiment

[0033] Please refer to Figure 1 , Figure 2 and Figure 3 A line suspension clamp for a high-voltage line comprises: a clamp hull 1;

[0034] A locking member 2, the locking member 2 passes through both sides of the wire clamp hull 1 and extends out of the wire clamp hull 1 to the outside, and the locking member 2 is fixed and installed by bolts;

[0035] The clamping mechanism 3, two of the clamping mechanisms 3 are symmetrically fixedly installed on the inner wall of the wire clamp hull 1, the clamping mechanism 3 comprises a telescopic member 301, two of the telescopic members 301 are symmetrically fixedly installed on the inner wall of the wire clamp hull 1, one end of the two telescopic members 301 is fixedly installed with a bearing plate 302, one side of the bearing plate 302 is fixedly installed with two springs 303, and one end of the two springs 303 is fixedly installed with a clamping plate 304;

[0036] A bottom plate 4, the bottom plate 4 is fixedly mounted on the bottom of the wire clamp hull 1;

[0037] The conductor platform 10 is fixedly mounted on the top of the bottom plate 4 .

[0038] In actual use, the tops of the two carrying plates 302 can be completely closed when closed, and the bottoms are configured to be an incomplete arc shape that matches the wire platform 10;

[0039] The two ends of the clamp hull 1 are semicircular in shape, which is convenient for carrying the conductor. The high-voltage line conductor mainly adopts steel core aluminum stranded wire (ACSR), which is widely used in the field of high-voltage power transmission and is the most commonly used conductor type in high-voltage overhead transmission lines. It is suitable for various voltage levels, especially high-voltage, ultra-high-voltage and ultra-high-voltage transmission lines of 110kV and above. For example, in large-scale power transmission projects such as my country's West-to-East Power Transmission, a large number of steel core aluminum stranded wires are used; aluminum alloy stranded wires are often used in high-voltage transmission lines in areas with high requirements for conductor mechanical properties and corrosion resistance, such as coastal areas, industrial pollution areas, etc. The environmental corrosion in these areas is strong, and the corrosion resistance of aluminum alloy stranded wires enables it to operate stably for a long time;

[0040] The four clamping plates 304 clamp the wire together and are adapted to the wire;

[0041] The two telescopic members 301 on the same side are adapted to be installed with the carrying plate 302 .

[0042] The working principle of a line suspension clamp for a high-voltage line provided by the present invention is as follows:

[0043] First, during installation, a worker passes the wire through between the two bearing plates 302 , at which time the wire platform 10 provides an upward support force for the wire and stops after reaching the target position.

[0044] Then, the two telescopic members 301 are manually moved toward the position of the conductor, the conductor is clamped and limited by the clamping plate 304, and buffered by the spring 303, which can also be dynamically adjusted to avoid excessive clamping force damaging the conductor.

[0045] Finally, the locking member 2 is tightened by two bolts and is hung on the insulator string by a hanging ring for fixed installation.

[0046] Compared with the related art, the present invention provides a high voltage line suspension clamp with the following features:

[0047] Beneficial effects:

[0048] The wire is fixed and clamped by the telescopic member 301, and buffered by the spring 303 and the clamping plate 304, so as to avoid damage to the wire due to excessive friction in long-term use and extreme weather such as strong winds. At the same time, the spring 303 can be dynamically adjusted to avoid damage to the wire due to excessive clamping force. When the wire expands and contracts in extremely cold and hot weather, the spring 303 can also buffer stress.

[0049] Second embodiment

[0050] Please refer to Figure 4-Figure 9Based on the first embodiment of the present application, a line suspension clamp for a high-voltage line is provided. The second embodiment of the present application provides another line suspension clamp for a high-voltage line. The second embodiment is only a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the independent implementation of the first embodiment.

[0051] Specifically, the second embodiment of the present application provides a line suspension clamp for a high-voltage line. The difference is that an insulating pad 7 is fixedly installed on one side of the clamping plate 304, and the insulating pad 7 is made of natural rubber.

[0052] A winding mechanism 5 is symmetrically fixedly installed on the top of the base plate 4, and the winding mechanism 5 includes a disc 501. Two of the discs 501 are fixedly installed on the top of the base plate 4 through fixing columns. A circular groove 502 is provided on the opposite side of the two discs 501. Six rotating blocks 503 are slidably connected inside the two circular grooves 502. A pre-twisted wire reel 504 is fixedly installed on the bottom of the six rotating blocks 503.

[0053] A plurality of shifting shafts 6 are fixedly mounted on one side of the pre-twisted wire drum 504 .

[0054] The pre-twisted wire drum 504 is provided with a plurality of wire holes 9 inside.

[0055] Platform transverse grooves 11 are disposed on both sides of the conductor platform 10 , and both of the two supporting plates 302 are provided with openings.

[0056] The bottom of the wire platform 10 is fixedly installed with a pulling mechanism 8, and the pulling mechanism 8 includes a worm 801, and the worm 801 is fixedly installed on the bottom of the wire platform 10 through a rotating bracket. One end of the worm 801 is fixedly connected with a rotating disk 802, and the rotating disk 802 is adapted to be installed with the dial shaft 6. The worm 801 is meshed with a worm wheel 803, and a worm wheel shaft 804 is fixedly installed inside the worm wheel 803. The bottom of the worm wheel shaft 804 is rotatably connected with a connecting column 806, and the connecting column 806 is fixedly installed at At the top of the base plate 4, one end of the worm gear shaft 804 is sleeved with a gear 805, and a rack bearing plate 808 is fixedly and symmetrically installed at the center of the top of the base plate 4. A rack 807 is slidably connected inside the rack bearing plate 808, and the gear 805 meshes with the rack 807. One end of the rack 807 passes through the bearing plate 302 and extends out of the bearing plate 302. A pulling block 809 is fixedly installed on one end of the rack 807 extending out of the bearing plate 302, and the pulling block 809 is adapted to be installed with the bearing plate 302.

[0057] In actual use, the clamping plate 304 and the insulating pad 7 are adapted and installed;

[0058] The wire holes 9 may be provided in multiple numbers, at least ten, to better wind the pre-twisted wire;

[0059] The rack 807 passes through the platform transverse groove 11;

[0060] The length of the shifting shaft 6 does not exceed the position of the rotating disk 802;

[0061] The special-shaped groove of the rotating disk 802 is adapted to be installed with the wave shaft 6 .

[0062] The working principle of a line suspension clamp for a high-voltage line provided in this embodiment is as follows:

[0063] First, the pre-twisted wire is passed through the wire holes 9 on the two pre-twisted wire reels. There are ten wire holes 9. After the pre-twisted wire is installed, it is cut and knotted at both ends. The worker passes the wire between the two supporting plates 302. At this time, the wire is inside the ten pre-twisted wires, and the wire platform 10 also supports the pre-twisted wire and the wire upward at the same time.

[0064] Then, the worker uses the pin to toggle the rotating block 503, and the pre-twisted wire drums 504 at both ends rotate in opposite directions by toggling the rotating block 503. While the pre-twisted wire is being wound, the toggle shaft 6 on the pre-twisted wire drum 504 also rotates. During the rotation process, the six toggle shafts 6 are sequentially engaged with the special-shaped grooves on the rotating disk 802 to drive the rotating disk 802 to rotate, and the rotating disk drives the worm 801 to rotate. The worm 801 is meshed with the worm wheel 803. When the worm wheel 803 rotates, it also drives the gear 805 to rotate through the worm wheel shaft 804. The gear 805 drives the racks 807 on both sides to shrink, and the pulling blocks 809 at one end of the two racks 807 respectively pull the two bearing plates 302 to move toward the wire. The clamping plate 304 is fixedly installed with an insulating pad 7. At this time, the pre-twisted wire is wound while the insulating pad 7 also clamps the pre-twisted wire. After the pre-twisted wire is wound around the wire, the overall strength of the wire can be increased, and the risk of wire breakage due to external force can be reduced.

[0065] Finally, after the winding of the pre-twisted wire and the clamping of the insulating pad 7 are completed, the locking member 2 is tightened by two bolts and is hung on the insulator string by a hanging ring for fixed installation.

[0066] Compared with the related art, the line suspension clamp for high-voltage lines provided in this embodiment has the following beneficial effects:

[0067] The wire winding can be completed by rotating the pre-twisted wire drum 504. The pre-twisted wire is wound on the wire, which can increase the overall strength of the wire and reduce the risk of wire breakage due to external force, thereby avoiding the possibility of overhead wire breaking or even falling off, causing power outages in the transmission line. At the same time, the rotation of the pre-twisted wire drum 504 also drives the shifting shaft 6 and the rotating disk 802 to work. The worm gear 803 drives the gear 805 to contract the racks 807 on both sides, thereby driving the bearing plate 302 to move toward the wire. The bearing plate 302 is clamped by the insulating pad 7 to prevent the wire discharge from damaging the wire clamp and causing the wire to fall off under special circumstances. The operation is simple for workers, who only need to shift the rotating block 503 to complete the work of installing the pre-twisted wire and clamping the wire.

[0068] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A line suspension clamp for a high voltage line, characterized in that: include: Clamp hull (1); A locking member (2), the locking member (2) passing through both sides of the wire clamp hull (1) and extending out of the wire clamp hull (1) to the outside, the locking member (2) being fixedly installed by bolts; A clamping mechanism (3), wherein two of the clamping mechanisms (3) are symmetrically fixedly mounted on the inner wall of the wire clamp hull (1), and the clamping mechanism (3) comprises a telescopic member (301), wherein the two telescopic members (301) are symmetrically fixedly mounted on the inner wall of the wire clamp hull (1), a bearing plate (302) is fixedly mounted on one end of the two telescopic members (301), two springs (303) are fixedly mounted on one side of the bearing plate (302), and a clamping plate (304) is fixedly mounted on one end of the two springs (303); A bottom plate (4), the bottom plate (4) being fixedly mounted on the bottom of the wire clamp hull (1); A conductor platform (10), wherein the conductor platform (10) is fixedly mounted on the top of the base plate (4).

2. A line suspension clamp for a high voltage line according to claim 1, characterized in that: An insulating pad (7) is fixedly mounted on one side of the clamping plate (304), and the insulating pad (7) is made of natural rubber.

3. A line suspension clamp for a high voltage line according to claim 1, characterized in that: A winding mechanism (5) is symmetrically fixedly installed on the top of the base plate (4), and the winding mechanism (5) comprises a disc (501). Two of the discs (501) are fixedly installed on the top of the base plate (4) via fixing columns. Circular grooves (502) are arranged on opposite sides of the two discs (501). Six rotating blocks (503) are slidably connected inside the two circular grooves (502). A pre-twisted wire reel (504) is fixedly installed on the bottom of the six rotating blocks (503).

4. A line suspension clamp for a high voltage line according to claim 3, characterized in that: A plurality of shifting shafts (6) are fixedly mounted on one side of the pre-twisted wire drum (504).

5. A line suspension clamp for a high voltage line according to claim 3, characterized in that: A plurality of wire holes (9) are arranged inside the pre-twisted wire drum (504).

6. A line suspension clamp for a high voltage line according to claim 3, characterized in that: Platform transverse grooves (11) are provided on both sides of the conductor platform (10), and both of the two supporting plates (302) are provided with openings.

7. A line suspension clamp for a high voltage line according to claim 4, characterized in that: A pulling mechanism (8) is fixedly installed at the bottom of the wire platform (10), and the pulling mechanism (8) includes a worm (801), and the worm (801) is fixedly installed at the bottom of the wire platform (10) through a rotating bracket, one end of the worm (801) is fixedly connected to a rotating disk (802), and the rotating disk (802) is adapted to be installed with the dial shaft (6), and the worm (801) is meshed with a worm wheel (803), and a worm wheel shaft (804) is fixedly installed inside the worm wheel (803), and the bottom of the worm wheel shaft (804) is rotatably connected to a connecting column (806), and the connecting column (806) is fixedly installed on At the top of the base plate (4), one end of the worm gear shaft (804) is sleeved with a gear (805), and a rack bearing plate (808) is fixedly and symmetrically installed at the center of the top of the base plate (4). A rack (807) is slidably connected inside the rack bearing plate (808), and the gear (805) meshes with the rack (807). One end of the rack (807) passes through the bearing plate (302) and extends out of the bearing plate (302). A pulling block (809) is fixedly installed at one end of the rack (807) extending out of the bearing plate (302), and the pulling block (809) is mounted in a matching manner with the bearing plate (302).

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