Self-locking damper

Abstract

The invention relates to the field of electric power facilities, and discloses a self-locking vibration damper which comprises a vibration damper body. The fixing part comprises a fixing piece arranged on the damper body, a pushing assembly is arranged on the fixing piece, and a clamping piece is arranged on the pushing assembly; the pushing assembly rotates, and the clamping piece can be driven to ascend and descend on the fixing piece. According to the invention, the installation of the damper main body can be realized, the self-locking fixation after the installation can be realized, the damper main body is ensured to be stably fixed on the lead through the clamp body and the fixing block, the looseness is not easy to generate, the anti-vibration effect is improved, and the condition that the clamp body drives the damper main body to slide along the lead is avoided. The phenomenon that a protective layer on the surface of the wire is abraded due to friction generated by sliding between the damper and the wire is effectively prevented, and aging of the wire is delayed.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of power facilities, in particular to a self-locking anti-vibration hammer. BACKGROUND

[0002] With the rapid development of China's economy, the coverage of power grid is increasing, how to safely and stably transmit power becomes one of the important factors determining the speed of China's economic development. In high-voltage overhead lines, wind can cause vibration of power cables. When the wind flows parallel to the cable, it can cause the conductor to vibrate at a high frequency and a small amplitude. Under the long-term effect of vibration, the conductor material will fatigue and produce small cracks, eventually causing a broken wire accident. When the conductor is attached with ice, snow or other substances, the cross section of the conductor is asymmetric, and when the wind flows through the cable, it causes the conductor to vibrate at a low frequency and a large amplitude, affecting power transmission safety. In order to deal with such problems, an anti-vibration hammer is usually installed. However, the fixing bolts of the existing anti-vibration hammer are easily affected by vibration and become loose during long-term use. The loosened anti-vibration hammer slides along the conductor, resulting in a significant decrease in the anti-vibration effect. Moreover, the friction between the anti-vibration hammer and the conductor during sliding can wear the protective layer on the surface of the conductor, accelerating the aging of the conductor. SUMMARY

[0003] In view of the problems existing in the prior art, the present application is proposed.

[0004] The above technical problems are solved by the following technical scheme: the present application provides a self-locking anti-vibration hammer, which comprises an anti-vibration hammer body, a fixing part comprising a fixing member provided on the anti-vibration hammer body, a pushing assembly provided on the fixing member, and a clamping member provided on the pushing assembly. The pushing assembly can rotate to drive the clamping member to rise and fall on the fixing member.

[0005] In a preferred embodiment of the self-locking anti-vibration hammer, the anti-vibration hammer body comprises a twisted wire, and a hammer head is provided on the twisted wire.

[0006] In a preferred embodiment of the self-locking anti-vibration hammer, the fixing member comprises a clamp body provided on the twisted wire, a fixing hole is provided on the clamp body, and a hanging groove is provided on the clamp body.

[0007] In a preferred embodiment of the self-locking anti-vibration hammer, the pushing assembly comprises a self-locking member provided on the clamp body, the self-locking member comprises a fixing nut provided on the clamp body, an inclined tooth is provided on the fixing nut, and a locking block is provided on the clamp body.

[0008] In a preferred embodiment of the self-locking anti-vibration hammer, the pushing assembly further comprises a pushing piece arranged on the clamp body, the pushing piece comprises a movable slot arranged on the clamp body, a screw rod is arranged in the movable slot, a connecting slot is arranged on the screw rod, and a connecting block is arranged on the side wall of the fixed nut.

[0009] In a preferred embodiment of the self-locking anti-vibration hammer, the clamp piece comprises a fixed block arranged on the clamp body, and a threaded slot is arranged on the fixed block.

[0010] In a preferred embodiment of the self-locking anti-vibration hammer, a limiting piece is further arranged on the screw rod, the limiting piece comprises a limiting slot arranged on the threaded slot, a limiting hole is arranged on the clamp body, and a limiting rod is arranged in the limiting hole.

[0011] In a preferred embodiment of the self-locking anti-vibration hammer, a pulling piece is further arranged on the connecting block, the pulling piece comprises a fixed ring arranged on the connecting block, a tension spring is arranged on the fixed ring, a limiting block is arranged at the other end of the tension spring, and a cavity is arranged on the screw rod; wherein the tension spring is located in the cavity.

[0012] In a preferred embodiment of the self-locking anti-vibration hammer, an operation part is further arranged, the operation part comprises an operation rod, a motor is arranged in the operation rod, a double universal joint is fixedly connected to the output end of the motor, a fixed slot is arranged on the double universal joint, a battery is arranged in the operation rod, and a switch is arranged on the operation rod; wherein the fixed slot is matched with the fixed nut.

[0013] In a preferred embodiment of the self-locking anti-vibration hammer, a guiding part is arranged, the guiding part comprises a support seat, a guiding wheel is arranged on the support seat, and a first support block and a second support block are arranged on the fixed block; wherein the support seat is connected with the fixed block through the support blocks.

[0014] The self-locking anti-vibration hammer has the following advantages: the fixed part is arranged to realize the installation of the anti-vibration hammer body and the self-locking fixation after installation, so that the anti-vibration hammer body is stably fixed on the wire through the clamp body and the fixed block and is not prone to loosening, the problem that the anti-vibration effect is reduced due to the loosening of the fixing bolt in the existing anti-vibration hammer is effectively solved, the anti-vibration effect is improved, the situation that the clamp body drives the anti-vibration hammer body to slide along the wire is avoided, the phenomenon that the wire surface protection layer is abraded due to the sliding between the anti-vibration hammer and the wire is effectively prevented, the aging of the wire is delayed, and the safe and stable operation of the power transmission line is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings of the embodiments of the present application will be briefly introduced below. Obviously, the drawings in the following description only relate to some embodiments of the present application and are not limiting of the present application. Among them:

[0016] Figure 1 The overall schematic diagram of the self-locking anti-vibration hammer is shown;

[0017] Figure 2 The overall schematic diagram of the self-locking anti-vibration hammer is shown; Figure 1 The enlarged view of A in FIG. 4 is shown;

[0018] Figure 3 The overall schematic diagram of the clamp body of the self-locking anti-vibration hammer is shown;

[0019] Figure 4 The overall schematic diagram of the fixed part of the self-locking anti-vibration hammer is shown;

[0020] Figure 5 The cross-sectional view of the self-locking anti-vibration hammer is shown;

[0021] Figure 6 The cross-sectional view of the screw rod of the self-locking anti-vibration hammer is shown;

[0022] Figure 7 The overall schematic diagram of the self-locking anti-vibration hammer is shown;

[0023] Figure 8 The overall schematic diagram of the operation part of the self-locking anti-vibration hammer is shown;

[0024] Figure 9 The schematic diagram of the double universal joint part structure connection of the self-locking anti-vibration hammer is shown;

[0025] Figure 10 The overall schematic diagram of the self-locking anti-vibration hammer is shown;

[0026] Figure 11 The overall schematic diagram of the support seat of the self-locking anti-vibration hammer is shown.

[0027] 1, vibration damper main body; 11, twisted wire; 12, hammer head; 2, fixed part; 21, fixing piece; 211, clamp body; 212, fixing hole; 213, hanging groove; 22, pushing assembly; 221, self-locking piece; 2211, fixed nut; 2212, helical tooth; 2213, locking block; 222, pushing piece; 2221, movable groove; 2222, screw rod; 2223, connecting groove; 2224, connecting block; 23, clamping piece; 231, fixed block; 232, threaded groove; 24, limiting piece; 241, limiting groove; 242, limiting hole; 243, limiting rod; 25, tension piece; 251, fixed ring; 252, tension spring; 253, limiting block; 254, cavity; 3, operation part; 31, operation rod; 32, motor; 33, double universal joint; 34, fixed groove; 35, battery; 36, switch; 4, guide part; 41, support seat; 42, guide wheel; 43, first support block; 44, second support block; DETAILED DESCRIPTION

[0028] In order for those skilled in the art to better understand the present application, the present application will be further described in detail below in conjunction with specific embodiments and drawings.

[0029] The terms used in the present application are those general terms currently widely used in the art in consideration of the functions about the present application, but the terms can be changed according to the intention of those skilled in the art, precedents, or new technology in the art. In addition, specific terms can be selected by the applicant, and in this case, the detailed meaning thereof will be described in the detailed description of the present application. Therefore, the terms used in the specification should not be understood as simple names, but based on the meaning of the terms and the overall description of the present application.

[0030] Example 1

[0031] Reference Figures 1-4 The present embodiment provides a self-locking vibration damper, comprising a vibration damper main body 1, a fixed part 2 comprising a fixing piece 21 provided on the vibration damper main body 1, a pushing assembly 22 provided on the fixing piece 21, and a clamping piece 23 provided on the pushing assembly 22, wherein the pushing assembly 22 is rotatable to drive the clamping piece 23 to rise and fall on the fixing piece 21.

[0032] Specifically, the damper body 1 is hung on the wire through the fixing part 21, then the pushing assembly 22 is rotated to move the clamping part 23 upward to tightly contact with the wire, and the fixing part 21 is fixed on the wire through the clamping part 23, so that loosening is avoided, the problem that the damping effect is reduced due to loosening of the fixing bolt in the existing damper is effectively solved, the damping effect is improved, and meanwhile, since the fixing part 21 can be stably fixed on the wire, the situation that the fixing part 21 slides along the wire is avoided, so that the phenomenon that the wire surface protection layer is abraded due to friction between the damper and the wire caused by sliding is prevented, the wire aging is delayed, and the safe and stable operation of the power transmission line is ensured.

[0033] Embodiment 2

[0034] With reference to Figures 1-6 The difference between this embodiment and the first embodiment is that the damper body 1 comprises a strand 11, and the strand 11 is provided with a hammer head 12.

[0035] Specifically, the hammer head 12 is provided in two and symmetrically arranged, the hammer head 12 is welded with the strand 11, the hammer head 12 is made of heavy metal material, such as cast iron, the strand 11 is made of steel or alloy, and the strand 11 has a certain flexibility, so that the hammer head 12 can swing on the high-voltage overhead wire to absorb the vibration generated by wind flow on the high-voltage overhead wire.

[0036] The fixing part 21 comprises a clamp body 211 provided on the strand 11, the clamp body 211 is provided with a fixing hole 212, and the clamp body 211 is provided with a hanging groove 213.

[0037] Specifically, the strand 11 is located in the fixing hole 212, the clamp body 211 is welded and fixed with the middle position of the strand 11 through the fixing hole 212, and the hanging groove 213 is arranged in a “J” shape.

[0038] The pushing assembly 22 comprises a self-locking part 221 provided on the clamp body 211, the self-locking part 221 comprises a fixed nut 2211 provided on the clamp body 211, the fixed nut 2211 is provided with a bevel gear 2212, and the clamp body 211 is provided with a locking block 2213.

[0039] Specifically, the fixed nut 2211 is a hexagonal nut, the bevel teeth 2212 are arranged in a ring array, the bevel teeth 2212 are arranged in a right triangle, the bevel teeth 2212 are fixedly connected with the fixed nut 2211, the locking blocks 2213 are arranged in a symmetrical manner, the tooth slots formed by the two adjacent bevel teeth 2212 are matched with the locking blocks 2213, the locking blocks 2213 are fixedly connected with the clamp body 211, when the fixed nut 2211 rotates clockwise, the bevel teeth 2212 can slide along the side surface of the locking blocks 2213, and when the fixed nut 2211 has a counterclockwise rotation trend, the right angle side of the bevel teeth 2212 abuts against the locking blocks 2213, and the one-way self-locking locking is realized through the cooperation of the tooth slots and the locking blocks 2213, so that the fixed nut 2211 is prevented from being loosened in reverse rotation;

[0040] The pushing assembly 22 further comprises a pushing piece 222 arranged on the clamp body 211, the pushing piece 222 comprises a movable groove 2221 arranged on the clamp body 211, a screw rod 2222 is arranged in the movable groove 2221, a connecting groove 2223 is arranged on the screw rod 2222, and a connecting block 2224 is arranged on the side wall of the fixed nut 2211; wherein the connecting block 2224 is insertedly connected with the connecting groove 2223;

[0041] Specifically, the screw rod 2222 is movably connected with the movable groove 2221, the connecting block 2224 is fixedly connected with the fixed nut 2211, the connecting block 2224 is a hexagonal screw rod, the connecting groove 2223 is arranged in a hexagonal shape, and the screw rod 2222 is connected with the fixed nut 2211 through the connecting block 2224 and the connecting groove 2223, so that when the fixed nut 2211 rotates, the screw rod 2222 rotates under the action of the connecting block 2224 and the connecting groove 2223;

[0042] The clamping piece 23 comprises a fixed block 231 arranged on the clamp body 211, and a threaded groove 232 is arranged on the fixed block 231; wherein the threaded groove 232 is threadedly connected with the screw rod 2222;

[0043] Specifically, a sliding groove a matched with the fixed block 231 is formed in the clamp body 211, so that the fixed block 231 can be movably connected with the clamp body 211 through the sliding groove a, and the clamp body 211 can be limited to move up and down only, and the fixed block 231 is lifted through the threaded groove 232, the screw rod 2222 and the sliding groove a;

[0044] Further comprising a limiting piece 24 arranged on the screw rod 2222, the limiting piece 24 comprises a limiting groove 241 arranged on the screw rod 2222, a limiting hole 242 is arranged on the clamp body 211, and a limiting rod 243 is arranged in the limiting hole 242;

[0045] Specifically, the limiting groove 241 is annularly arranged, the limiting holes 242 are two and symmetrically arranged, the limiting rod 243 is embeddedly connected with the limiting holes 242, the limiting rod 243 is located in the limiting groove 241, and the limiting groove 241 and the limiting groove 241 play a role in limiting the screw rod 2222, so that the screw rod 2222 can only rotate in the movable groove 2221 and cannot be displaced upward, thereby avoiding the influence of the displacement of the screw rod 2222 on the self-locking effect;

[0046] Further comprising a tension member 25 arranged on the connecting block 2224, the tension member 25 comprises a fixing ring 251 arranged on the connecting block 2224, the fixing ring 251 is provided with a tension spring 252, the other end of the tension spring 252 is provided with a limiting block 253, and the screw rod 2222 is provided with a cavity 254; wherein the tension spring 252 is located in the cavity 254;

[0047] Specifically, the fixing ring 251 is fixedly connected with the connecting block 2224, the tension spring 252 is hung on the fixing ring 251, the limiting block 253 is fixedly connected with the tension spring 252, the limiting block 253 is located at the bottom of the screw rod 2222, and the limiting block is in contact with the screw rod 2222, the size of the limiting block is greater than the diameter of the cavity 254, the cavity 254 is in communication with the connecting groove 2223, and the fixing ring 251, the tension spring 252 and the limiting block 253 jointly enable the screw rod 2222 to be tightly connected with the fixed nut 2211 and enable the bevel gear 2212 to be in a reliable meshing state with the locking block 2213, thereby enhancing the self-locking stability;

[0048] In use, the damper main body 1 is hung on the wire through the hanging groove 213 on the clamp body 211, then the fixed nut 2211 is rotated to drive the connecting block 2224 to rotate, the screw rod 2222 rotates under the action of the connecting block 2224 and the connecting groove 2223, the fixed block 231 moves upward under the action of the screw groove 232 and the sliding groove a until tightly contacts with the wire, the clamp main body is fixed on the wire through the fixed block 231, the installation of the damper main body 1 is realized, the fixed nut 2211 can only rotate clockwise and cannot rotate counterclockwise under the limiting action of the bevel gear 2212 and the locking block 2213, the self-locking fixation after installation is realized, the tight contact state of the fixed block 231 and the wire is ensured not to be loosened due to vibration, the problem that the existing damper causes the decline of the anti-vibration effect due to the loosening of the fixing bolt is effectively solved, the anti-vibration effect is improved, and meanwhile, the clamp main body can be stably fixed on the wire through the fixed block 231, the sliding of the clamp main body along the wire is avoided, the phenomenon that the wire surface protection layer is abraded due to the friction between the damper and the wire caused by sliding is effectively prevented, the aging of the wire is delayed, and the safe and stable operation of the power transmission line is ensured;

[0049] After long time use, the energy of the wire vibration of the high-voltage overhead cable is transmitted to the fixing nut 2211, the continuous tension of the tension spring 252 can effectively offset the vertical vibration energy, the horizontal vibration energy is weak itself, the engagement structure of the oblique tooth 2212 and the locking block 2213 can further absorb this part of energy, under the double action, the loosening of the fixing nut 2211 can be reliably prevented, thereby avoiding the displacement of the fixing block 231, at the same time, the hammer head 12 and the hanging groove 213 are located on the same plane, so that most of the wire vibration of the high-voltage overhead cable can be absorbed by the hammer head 12, which significantly improves the stability and durability of the overall anti-vibration effect;

[0050] Embodiment 3

[0051] With reference to Figures 1-9 The difference between this embodiment and the first embodiment is that it further comprises an operation part 3, the operation part 3 comprises an operation rod 31, a motor 32 is arranged in the operation rod 31, a double universal joint 33 is fixedly connected to the output end of the motor 32, a fixing groove 34 is arranged on the double universal joint 33, a battery 35 is arranged in the operation rod 31, and a switch 36 is arranged on the operation rod 31; wherein the fixing groove 34 is matched with the fixing nut 2211;

[0052] Specifically, the operation rod 31 is a telescopic insulating operation rod 31, the motor 32 and the battery 35 are fixedly installed in the operation rod 31, the switch 36 is fixedly installed on the operation rod 31, a spring wire is used between the battery 35 and the motor 32, the switch 36 is connected with the motor 32, the switch 36 can start the motor 32, the fixing groove 34 is hexagonally arranged and matched with the shape of the fixing nut 2211, and can be inserted and matched with the fixing nut 2211, so as to realize stable transmission of power;

[0053] In use, in cooperation with embodiment 2, after the vibration damper main body 1 is hung on the wire through the hanging groove 213 on the clamp body 211, the operator gradually moves the fixing groove 34 of the double universal joint 33 to the fixing nut 2211 through the operation rod 31 until the fixing nut 2211 is inserted into the fixing groove 34, at this time, the operator presses the switch 36 to start the motor 32, so that the double universal joint 33 drives the fixing nut 2211 to rotate, the screw rod 2222 rotates with the fixing nut 2211 under the action of the connecting block 2224 and the connecting groove 2223, so that the fixing block 231 moves upward under the action of the threaded groove 232 and the sliding groove a until it is in close contact with the wire, so that the clamp main body is fixed on the wire through the fixing block 231, at this time, the operator presses the switch 36 again to turn off the motor 32, the operator moves the double universal joint 33 away from the fixing nut 2211 through the operation rod 31, so that the fixing nut 2211 is separated from the fixing groove 34, the installation of the vibration damper main body 1 is realized, and the cross-distance installation can be realized, which improves the safety and convenience of operation;

[0054] The rest of the structure is the same as that of Example 2;

[0055] Example 4

[0056] With reference to Figures 7-11 The difference between this example and the first example is that it comprises a guide part 4, which comprises a support seat 41, on which a guide wheel 42 is arranged, and a first support block 43 and a second support block 44 are arranged on the fixed block 231; wherein the support seat 41 is connected with the fixed block 231 through the support block;

[0057] Specifically, the guide wheel 42 is provided with two, and the two guide wheels 42 are symmetrically arranged, the first support block 43 and the second support block 44 are each provided with two, and the two first support blocks 43 and the two second support blocks 44 are symmetrically arranged, and the groove formed between the first support block 43 and the second support block 44 is matched with the support seat 41, so that the support seat 41 is detachably connected with the fixed block 231, and the guide part 4 can be connected with the operating rod 31 through a rope;

[0058] In use, in combination with Examples 2 and 3, the support seat 41 can be connected with the fixed block 231 through the groove formed between the first support block 43 and the second support block 44, and then the guide wheel 42 is hung on the wire, at this time the inner wall of the hanging groove 213 does not contact the wire, at this time the operator can drive the fixed part 2 to drive the anti-vibration hammer main body 1 to slide along the wire through the guide wheel 42 under the rolling action of the guide wheel 42, which avoids direct friction with the surface of the wire and does not damage the protective layer on the surface of the wire, thereby preventing the wire from being accelerated aging due to abrasion, and the position of the anti-vibration hammer main body 1 can be adjusted according to the actual situation, after the adjustment is completed, the switch 36 is pressed, the motor 32 is started, the double universal joint 33 drives the fixed nut 2211 to rotate, the fixed block 231 moves upward until the wire is in close contact with the inner wall of the hanging groove 213 and the fixed block 231, so that the clamp main body is fixed on the wire through the fixed block 231, in this process, the guide wheel 42 will move upward synchronously with the fixed block 231, and finally the guide wheel 42 is separated from the wire, then the operator presses the switch 36 to turn off the motor 32, and the double universal joint 33 is withdrawn through the operating rod 31, so that the fixed nut 2211 is separated from the fixed groove 34, and the guide part 4 is removed from the anti-vibration hammer main body 1 (the specific operation can be adjusted according to the actual working condition), and the installation of the anti-vibration hammer main body 1 is completed;

[0059] The rest of the structure is the same as that of Examples 3 and 2;

[0060] Finally, it should be pointed out that the above detailed description of the method and device is only an embodiment, and those skilled in the art can modify the embodiment in different ways without departing from the scope of the present application.

Claims

1. A self-locking vibration damper, characterized in that: include, Vibration damper body (1); The fixing part (2) includes a fixing member (21) provided on the anti-vibration hammer body (1), the fixing member (21) is provided with a pushing component (22), and the pushing component (22) is provided with a clamping member (23); The pushing component (22) rotates, which can drive the clamping component (23) to rise and fall on the fixing component (21).

2. The self-locking vibration damper according to claim 1, characterized in that: The vibration damper body (1) includes a stranded wire (11) and a hammer head (12) is provided on the stranded wire (11).

3. The self-locking vibration damper according to claim 2, characterized in that: The fixing member (21) includes a clamp body (211) disposed on the stranded wire (11), the clamp body (211) is provided with a fixing hole (212), and the clamp body (211) is provided with a hanging groove (213).

4. The self-locking vibration damper according to claim 3, characterized in that: The pushing component (22) includes a self-locking member (221) provided on the clamp body (211), the self-locking member (221) includes a fixing nut (2211) provided on the clamp body (211), the fixing nut (2211) is provided with helical teeth (2212), and a locking block (2213) on the clamp body (211).

5. The self-locking vibration damper according to claim 4, characterized in that: The pushing assembly (22) further includes a pushing member (222) disposed on the clamp body (211). The pushing member (222) includes a movable groove (2221) disposed on the clamp body (211). A screw (2222) is disposed in the movable groove (2221). A connecting groove (2223) is disposed on the screw (2222). A connecting block (2224) is disposed on the side wall of the fixing nut (2211). The connecting block (2224) is plugged into the connecting groove (2223).

6. The self-locking vibration damper according to claim 5, characterized in that: The clamping member (23) includes a fixing block (231) disposed on the clamp body (211), and the fixing block (231) is provided with a threaded groove (232); The threaded groove (232) is threadedly connected to the screw (2222).

7. The self-locking vibration damper according to claim 6, characterized in that: It also includes a limiting member (24) provided on the screw (2222), the limiting member (24) including a limiting groove (241) provided on the thread, the clamp body (211) is provided with a limiting hole (242), and a limiting rod (243) is provided in the limiting hole (242).

8. The self-locking vibration damper according to claim 7, characterized in that: It also includes a tension member (25) provided on the connecting block (2224), the tension member (25) includes a fixing ring (251) provided on the connecting block (2224), a tension spring (252) provided on the fixing ring (251), a limiting block (253) provided at the other end of the tension spring (252), and a cavity (254) provided on the screw (2222); The tension spring (252) is located inside the cavity (254).

9. The self-locking vibration damper according to claim 8, characterized in that: It also includes an operation unit (3), which includes an operation lever (31), a motor (32) is provided inside the operation lever (31), a double universal joint (33) is fixedly connected to the output end of the motor (32), a fixing groove (34) is provided on the double universal joint (33), a battery (35) is provided inside the operation lever (31), and a switch (36) is provided on the operation lever (31); The fixing groove (34) is adapted to the fixing nut (2211).

10. The self-locking vibration damper according to claim 9, characterized in that: It also includes a guide part (4), which includes a support base (41), a guide wheel (42) on the support base (41), and a first support block (43) and a second support block (44) on the fixing block (231); The support base (41) is connected to the fixing block (231) via a support block.

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