阅读说明：本技术 一种纵向摆动快速吸能防振锤 (Longitudinal swing quick energy-absorbing vibration damper ) 是由 班书昊 李晓艳 丛蕊 于 2021-09-03 设计创作，主要内容包括：本发明公开了一种纵向摆动快速吸能防振锤,属于高压电线防振锤领域。它包括防振支架、横梁杆、齿轮支架、能量均分齿轮、阻尼吸收结构A和阻尼吸收结构B；阻尼吸收结构A包括U形阻尼架A、金属螺旋弹簧A、齿轮A、摆动杆A、摆锤A和液体阻尼缸A,阻尼吸收结构B包括U形阻尼架B、金属螺旋弹簧B、齿轮B、摆动杆B、摆锤B和液体阻尼缸B,U型阻尼架A的内侧底面上设有与齿轮A相啮合传动的啮合齿,U型阻尼架B的内侧顶面上设有与齿轮B相啮合传动的啮合齿,齿轮A和齿轮B与能量均分齿轮外啮合传动。本发明是一种结构简单、可以有效消除高压电线纵向滑动磨损、快速吸收纵向风载荷动能的吸能防振锤。(The invention discloses a longitudinal swinging quick energy-absorbing damper, and belongs to the field of high-voltage wire dampers. The device comprises an anti-vibration support, a beam rod, a gear support, an energy sharing gear, a damping absorption structure A and a damping absorption structure B; the damping absorption structure A comprises a U-shaped damping frame A, a metal spiral spring A, a gear A, a swinging rod A, a pendulum A and a liquid damping cylinder A, the damping absorption structure B comprises a U-shaped damping frame B, a metal spiral spring B, a gear B, a swinging rod B, a pendulum B and a liquid damping cylinder B, meshing teeth in meshing transmission with the gear A are arranged on the bottom surface of the inner side of the U-shaped damping frame A, meshing teeth in meshing transmission with the gear B are arranged on the top surface of the inner side of the U-shaped damping frame B, and the gear A and the gear B are in external meshing transmission with energy sharing gears. The energy-absorbing damper is simple in structure, can effectively eliminate longitudinal sliding abrasion of a high-voltage wire and quickly absorb longitudinal wind load kinetic energy.)

1. A longitudinal swing quick energy-absorbing damper comprises a vibration-proof support (1), a beam rod (2) fixedly arranged on the vibration-proof support (1), a gear support (5) fixedly arranged on the beam rod (2), an energy uniform gear (6) rotatably arranged on the gear support (5), and a damping absorption structure A and a damping absorption structure B which are arranged on the beam rod (2) and move synchronously; the method is characterized in that:

the damping absorption structure A comprises a U-shaped damping frame A (31) which is slidably sleeved on the beam rod (2), a metal spiral spring A (32) with two ends respectively connected with the anti-vibration support (1) and the U-shaped damping frame A (31), a gear A (33) and a swinging rod A (34) which are coaxially arranged at the left end of the gear support (5) and synchronously rotate, a pendulum A (35) fixedly arranged at the lower end of the swinging rod A (34), and a liquid damping cylinder A (36) rotatably arranged on the beam rod (2); the bottom surface of the inner side of the U-shaped damping frame A (31) is provided with meshing teeth which are in meshing transmission with the gear A (33), and the gear A (33) is in external meshing transmission with the energy uniform gear (6);

the damping absorption structure B comprises a U-shaped damping frame B (41) which is slidably sleeved on the beam rod (2), a metal spiral spring B (42) with two ends respectively connected with the anti-vibration support (1) and the U-shaped damping frame B (41), a gear B (43) and a swinging rod B (44) which are coaxially arranged at the right end of the gear support (5) and synchronously rotate, a pendulum B (45) fixedly arranged at the lower end of the swinging rod B (44), and a liquid damping cylinder B (46) rotatably arranged on the beam rod (2); the top surface of the inner side of the U-shaped damping frame B (41) is provided with meshing teeth which are in meshing transmission with the gear B (43), and the gear B (43) is in external meshing transmission with the energy uniform gear (6);

the gear A (33) and the gear B (43) are identical in structure; the opening directions of the U-shaped damping frame A (31) and the U-shaped damping frame B (41) are inward;

the liquid damping cylinder A (36) and the liquid damping cylinder B (46) are identical in structure and respectively comprise a cylinder body (361) which is rotatably arranged on the cross beam rod (2) and is filled with liquid, a piston which is slidably arranged in the cylinder body (361), and a piston rod (362) of which one end is fixedly arranged on the piston; the piston is provided with a flow through hole for allowing liquid fluid; the free end of a piston rod (362) in the liquid damping cylinder A (36) is hinged and arranged on the U-shaped damping frame A (31), and the free end of a piston rod (362) in the liquid damping cylinder B (46) is hinged and arranged on the U-shaped damping frame B (41).

2. The vertical oscillation, rapid energy absorption, and vibration damper according to claim 1, wherein: the metal coil spring A (32) and the metal coil spring B (42) are tension-resistant coil springs and are made of stainless steel materials.

3. The vertical oscillation, rapid energy absorption, and vibration damper according to claim 1, wherein: the length of the meshing teeth on the U-shaped damping frame A (31) and the U-shaped damping frame B (41) is not less than twice of the circumference of the gear A (33).

4. The vertical oscillation, rapid energy absorption, and vibration damper according to claim 1, wherein: in the working process, the U-shaped damping frame A (31) and the U-shaped damping frame B (41) are always in a non-contact state.

Technical Field

The invention mainly relates to the field of high-voltage wire damper, in particular to a longitudinal swinging quick energy-absorbing damper.

Background

The damper is widely applied in engineering, because the damper is mounted on the high-voltage wire to absorb the rotation or torsional vibration of the high-voltage wire, thereby reducing the probability of fatigue fracture of the high-voltage wire and further prolonging the service life of the high-voltage wire. Although the damper in the prior art can absorb the rotation or torsion vibration energy perpendicular to the direction of the high-voltage wire, the damper cannot absorb the longitudinal wind load energy parallel to the high-voltage wire; more importantly, the damper in the prior art can slide back and forth along the high-voltage wire in a small way under the action of longitudinal wind load, and the small sliding easily causes local abrasion of the high-voltage wire, so that the overall service life of the high-voltage wire is influenced. Therefore, the damper which can absorb longitudinal wind load and has no sliding wear is designed, and has certain engineering application value.

Disclosure of Invention

The technical problems to be solved by the invention are as follows: aiming at the technical problems in the prior art, the invention provides the energy-absorbing damper which is simple in structure, can effectively eliminate the longitudinal sliding abrasion of the high-voltage wire, and can quickly absorb the kinetic energy of longitudinal wind load by utilizing dry friction damping and liquid damping.

In order to solve the problems, the solution proposed by the invention is as follows: the utility model provides a quick energy-absorbing damper of longitudinal oscillation, includes the antivibration support, fixedly installs the crossbeam pole on the antivibration support, fixedly installs gear support on the crossbeam pole rotates and installs the gear is equallyd divide to the energy on the gear support, and installs synchronous motion's damping absorbing structure A and damping absorbing structure B on the crossbeam pole.

The damping absorption structure A comprises a U-shaped damping frame A which is slidably sleeved on the cross beam rod, a metal spiral spring A, a gear A and a swinging rod A, wherein the two ends of the metal spiral spring A are respectively connected with the anti-vibration support and the U-shaped damping frame A, the gear A and the swinging rod A are coaxially arranged at the left end of the gear support and synchronously rotate, a pendulum A fixedly arranged at the lower end of the swinging rod A and a liquid damping cylinder A rotatably arranged on the cross beam rod; and the bottom surface of the inner side of the U-shaped damping frame A is provided with meshing teeth which are in meshing transmission with the gear A, and the gear A and the energy-equalizing gear are in external meshing transmission.

The damping absorption structure B comprises a U-shaped damping frame B which is slidably sleeved on the cross beam rod, a metal spiral spring B, a gear B, a swinging rod B, a pendulum B and a liquid damping cylinder B, wherein the two ends of the metal spiral spring B are respectively connected with the anti-vibration support and the U-shaped damping frame B, the gear B and the swinging rod B are coaxially arranged at the right end of the gear support and synchronously rotate, the pendulum B is fixedly arranged at the lower end of the swinging rod B, and the liquid damping cylinder B is rotatably arranged on the cross beam rod; and the top surface of the inner side of the U-shaped damping frame B is provided with meshing teeth which are in meshing transmission with the gear B, and the gear B and the energy-equalizing gear are in external meshing transmission.

The gear A and the gear B are identical in structure; the U-shaped damping frame A and the U-shaped damping frame B are opened inwards.

The liquid damping cylinder A and the liquid damping cylinder B are identical in structure and respectively comprise a cylinder body which is rotatably arranged on the beam rod and is filled with liquid, a piston which is slidably arranged in the cylinder body, and a piston rod of which one end is fixedly arranged on the piston; the piston is provided with a flow through hole for allowing liquid fluid; the free end of the piston rod in the liquid damping cylinder A is hinged and arranged on the U-shaped damping frame A, and the free end of the piston rod in the liquid damping cylinder B is hinged and arranged on the U-shaped damping frame B.

Further, the metal coil spring a and the metal coil spring B are tension coil springs, and the material thereof is stainless steel material.

Further, the length of the meshing teeth on the U-shaped damping frame A and the U-shaped damping frame B is not less than twice of the circumference of the gear A.

Further, in the working process, the U-shaped damping frame A and the U-shaped damping frame B are always in a non-contact state.

Compared with the prior art, the invention has the following advantages and beneficial effects: the longitudinal swinging quick energy-absorbing vibration damper is provided with the energy sharing gears, the total kinetic energy of the pendulum bob A and the pendulum bob B is evenly distributed into the U-shaped damping frame A and the U-shaped damping frame B through the energy sharing gears, and the energy absorption is implemented through dry friction damping generated by gear meshing and liquid damping generated by piston movement, so that the absorption efficiency and the absorption effect of longitudinal wind load energy are improved; in addition, the U-shaped damping frame A and the U-shaped damping frame B have the same energy, and the U-shaped damping frame A and the U-shaped damping frame B always move reversely and synchronously, so that the resultant external force borne by the vibration-proof support along the direction of the high-voltage wire is zero, namely, the longitudinal sliding abrasion between the vibration-proof hammer and the high-voltage wire is eliminated, and the service life of the high-voltage wire is prolonged. Therefore, the energy-absorbing vibration damper is simple in structure, can effectively eliminate longitudinal sliding abrasion of a high-voltage wire, and can quickly absorb longitudinal wind load kinetic energy by utilizing dry friction damping and liquid damping.

Drawings

FIG. 1 is a schematic diagram of the structure of a longitudinal swing energy-absorbing damper according to the present invention.

In the figure, 1 — the anti-vibration mount; 2-a beam rod; 31-a U-shaped damping frame a; 32-metal coil spring a; 33-gear a; 34-swing lever a; 35-pendulum a; 36-liquid damping cylinder a; 361-cylinder body; 362-a piston rod; 41-U-shaped damping frame B; 42-metal coil spring B; 43-Gear B; 44-swing lever B; 45-pendulum B; 46-liquid damping cylinder B; 5-a gear bracket; 6-energy sharing gear.

Detailed Description

The invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1, the invention relates to a longitudinal swing quick energy-absorbing damper, which comprises a vibration-proof support 1, a beam rod 2 fixedly arranged on the vibration-proof support 1, a gear support 5 fixedly arranged on the beam rod 2, an energy-sharing gear 6 rotatably arranged on the gear support 5, and a damping absorption structure a and a damping absorption structure B which are arranged on the beam rod 2 and move synchronously; an included angle is formed between the gear support 5 and the beam rod 2, the right end of the gear support 5 inclines upwards, and the vibration-proof support 1 is used for being fixed on a high-voltage wire in a use state. The longitudinal swing in the present invention refers to a swing in the length direction of the high-voltage electric wire in the use state.

The damping absorption structure A comprises a U-shaped damping frame A31 which is slidably sleeved on the beam rod 2, a metal spiral spring A32, a gear A33, a swinging rod A34, a pendulum A35 and a liquid damping cylinder A36, wherein two ends of the metal spiral spring A32 are respectively connected with the anti-vibration frame 1 and the U-shaped damping frame A31, the gear A33 and the swinging rod A34 are coaxially arranged at the left end of the gear frame 5 and synchronously rotate, the pendulum A35 is fixedly arranged at the lower end of the swinging rod A34, and the liquid damping cylinder A36 is rotatably arranged on the beam rod 2; the bottom surface of the inner side of the U-shaped damping frame A31 is provided with meshing teeth which are in meshing transmission with the gear A33, and the gear A33 is in external meshing transmission with the energy uniform distribution gear 6.

The damping absorption structure B comprises a U-shaped damping frame B41 slidably sleeved on the beam rod 2, a metal spiral spring B42, a gear B43, a swinging rod B44, a pendulum B45 and a liquid damping cylinder B46, wherein the two ends of the metal spiral spring B42 are respectively connected with the anti-vibration frame 1 and the U-shaped damping frame B41, the gear B43 and the swinging rod B44 are coaxially arranged at the right end of the gear bracket 5 and synchronously rotate, the pendulum B45 is fixedly arranged at the lower end of the swinging rod B44, and the liquid damping cylinder B46 is rotatably arranged on the beam rod 2; the top surface of the inner side of the U-shaped damping frame B41 is provided with meshing teeth which are meshed with the gear B43 for transmission, and the gear B43 is meshed with the energy-sharing gear 6 for transmission.

The gear A33 is identical to the gear B43 in structure; the openings of the U-shaped damping frame A31 and the U-shaped damping frame B41 are directed inwards.

The liquid damping cylinder A36 and the liquid damping cylinder B46 have the same structure, and both comprise a cylinder body 361 which is rotatably arranged on the beam rod 2 and is filled with liquid, a piston which is slidably arranged in the cylinder body 361, and a piston rod 362 one end of which is fixedly arranged on the piston; the piston is provided with a flow through hole for allowing liquid fluid; the free end of the piston rod 362 in the liquid damping cylinder A36 is hinged on the U-shaped damping frame A31, and the free end of the piston rod 362 in the liquid damping cylinder B46 is hinged on the U-shaped damping frame B41.

Preferably, the metal coil spring a32 and the metal coil spring B42 are tension coil springs, and the material thereof is stainless steel.

Preferably, the length of the meshing teeth on the U-shaped damping frame A31 and the U-shaped damping frame B41 is not less than twice the circumference of the gear A33.

Preferably, the U-shaped damping frame A31 and the U-shaped damping frame B41 are in a non-contact state all the time during operation.

The working principle and the working process of the invention are as follows:

firstly, the vibration-proof bracket 1 is fixed on a high-voltage wire by using a steel wire rope, and the U-shaped bottom of the vibration-proof bracket 1 is parallel to the high-voltage wire because the vibration-proof bracket 1 is U-shaped.

When the electric wire is under the action of longitudinal wind load, the pendulum A35 and the pendulum B45 synchronously swing left and right, and because the swinging rod A34 and the gear A33 coaxially rotate synchronously, the swinging rod B44 and the gear B43 coaxially rotate synchronously, and the gear A33 and the gear B43 are both meshed with the energy sharing gear 6 externally, the rotating directions of the gear A33 and the gear B43 are always the same, namely, the gears rotate clockwise or counterclockwise simultaneously.

When the gear a33 and the gear B43 rotate clockwise at the same time, the gear a33 drives the U-shaped damping frame a31 provided with the meshing teeth on the bottom edge of the inner side to slide leftward along the beam rod 2, and at the same time, the gear B43 drives the U-shaped damping frame B41 provided with the meshing teeth on the top surface of the inner side to slide rightward along the beam rod 2, so as to compress the metal coil spring a32 and the metal coil spring B42, respectively, and since the structures of the gear a33 and the gear B43 are completely the same, the compression amounts of the metal coil spring a32 and the metal coil spring B42 are completely the same, so that the resultant external force applied to the anti-vibration bracket 1 along the direction of the high-voltage wire is zero.

When the gear a33 and the gear B43 rotate counterclockwise at the same time, the gear a33 drives the U-shaped damping frame a31 provided with the meshing teeth on the bottom edge of the inner side to slide rightward along the beam rod 2, and at the same time, the gear B43 drives the U-shaped damping frame B41 provided with the meshing teeth on the top surface of the inner side to slide leftward along the beam rod 2, and the stretching amounts of the metal coil spring a32 and the metal coil spring B42 are completely the same, so that the resultant external force applied to the vibration-proof bracket 1 in the direction of the high-voltage wire is still zero.

Because the combined external force borne by the vibration-proof support 1 along the direction of the high-voltage wire is always zero under the action of longitudinal wind load, the vibration-proof support 1 and the high-voltage wire cannot axially slide, namely the vibration-proof hammer eliminates the sliding abrasion between the vibration-proof support 1 and the high-voltage wire.

During the sliding process of the damping absorption structure A relative to the beam rod 2, almost all kinetic energy of longitudinal wind load on the high-voltage wire is converted into swinging kinetic energy of the pendulum A35, and the swinging kinetic energy of the pendulum A35 is consumed by the friction between the U-shaped damping frame A31 and the gear A33, namely part of the kinetic energy is absorbed by dry friction damping; meanwhile, as the U-shaped damping frame A31 moves relative to the beam rod 2, the piston in the liquid damping cylinder A36 slides relative to the cylinder 361, so that the damping liquid in the cylinder 361 is pushed to flow, a damping force is formed, a part of the kinetic energy of the pendulum A35 is absorbed, and the surplus kinetic energy is temporarily stored by the metal coil spring A32 until all the energy is converted into damping energy.

The energy absorption principle of the damping absorption structure B is the same as that of the damping absorption structure A. In the energy absorption process, although the mass and the kinetic energy of the pendulum A35 and the pendulum B45 are different, the gear A33 and the gear B43 are identical in structure and are in external meshing transmission with the energy-sharing gear 6 at the same time, so that the total kinetic energy of the pendulum A35 and the pendulum B45 is evenly distributed into the damping absorption structure A and the damping absorption structure B, and the absorption of wind-load total energy is accelerated.

The above is only a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through creative efforts should fall within the scope of the present invention.