CN210326931U

CN210326931U - Damper and insulator suspender thereof

Info

Publication number: CN210326931U
Application number: CN201920606963.4U
Authority: CN
Inventors: 任奕飞
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-04-29
Filing date: 2019-04-29
Publication date: 2020-04-14
Anticipated expiration: 2029-04-29

Abstract

The utility model discloses a damper and an insulator suspender thereof, the damper comprises a damping shell, a hollow damping cavity is arranged in the damping shell, a piston is arranged in the damping cavity, and damping liquid is filled in the damping cavity; the piston is fixedly assembled with one end of the piston rod, the other end of the piston rod penetrates through the damping shell and is fixedly assembled with the suspender, and the piston rod and the damping shell are sealed through a sealing ring. The utility model discloses a wind-force is driven the cable swing or before the calamity takes place, wind causes the galloping of overhead cable, can realize scrambling through the damping fluid inside the attenuator, and avoid taking place resonance; secondly, due to the existence of the damper, the mechanical buffer function is also realized.

Description

Damper and insulator suspender thereof

Technical Field

The utility model relates to a, especially relate to a attenuator and insulator jib thereof.

Background

In an outdoor overhead power transmission network, an insulator is a structural member for bearing a power cable by a power tower, and the structural member is also used for bearing while insulating, so that the key point is that the structural member bears the load. Because the cable is erected between two adjacent power towers, the cable has certain sag. The natural wind force outdoors causes the cable to swing and may cause disasters such as short circuit, open circuit, etc. of the cable.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned defect of prior art, the utility model aims to solve the technical problem that a attenuator and insulator jib thereof is provided, its swing that can effectively subdue natural wind power and cause the cable.

In order to achieve the purpose, the utility model provides a damper, which comprises a damping shell, wherein a hollow damping cavity is arranged inside the damping shell, a piston is arranged in the damping cavity, and damping liquid is filled in the damping cavity;

the piston is fixedly assembled with one end of the piston rod, the other end of the piston rod penetrates through the damping shell and is fixedly assembled with the suspender, and the piston rod and the damping shell are sealed through a sealing ring.

Preferably, the piston is provided with a diversion trench, and the diversion trench is used for enabling the damping fluid on two sides of the piston to be communicated and flow.

Preferably, a spring is arranged between one end face of the piston close to the piston rod and the damping cavity.

The utility model also discloses an insulator jib, its application has above-mentioned attenuator.

Preferably, still include the cross arm, install rings on the cross arm, rings and suspension clasp block assembly, fixed, the suspension clasp sets up on the attenuator, and the attenuator passes through the piston rod and jib one end assembly is fixed, be fixed with the insulator on the jib.

Preferably, the hanger rods are V-shaped hanger rods, two hanger rods are hung at the moment, and the other ends of the two hanger rods are fixedly connected through a connecting piece.

Preferably, the dust remover further comprises a dust remover, the dust remover comprises a dust removing shell, two ends of the dust removing shell are respectively provided with a protective shell and an end cover, the protective shells are fixed on the damping shell, an installation cavity is further formed in the dust removing shell, and a cleaning brush is installed in the installation cavity;

the cleaning brush is internally provided with a cleaning hole, and bristles are fixed on the inner wall of the cleaning hole;

the end face tooth part is arranged at one end, close to the damper, of the cleaning brush, the end face tooth part is in meshed transmission with a second gear, the second gear is fixed on a shaft body, a first gear is further fixed on the shaft body and meshed with a rack part, and the rack part is arranged on the piston rod.

Preferably, the bristles are arranged perpendicular to the inner wall of the cleaning hole.

Preferably, the bottom of the cleaning brush is provided with a first taper hole, the end cover is provided with a second taper hole, and the first taper hole and the second taper hole jointly form a taper hole.

Preferably, the part of the piston rod which can penetrate through the sealing ring and enter the damping cavity is a sliding part, the sliding part does not penetrate out of the sweeping brush, and the sliding part is not provided with a tooth socket.

The utility model has the advantages that: the utility model discloses a wind-force is driven the cable swing or before the calamity takes place, wind causes the galloping of overhead cable, can realize scrambling through the damping fluid inside the attenuator, and avoid taking place resonance; secondly, due to the existence of the damper, the mechanical buffer function is also realized.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of the damper of the present invention.

Fig. 3 is a schematic structural view of the utility model with a dust remover.

Fig. 4 is a schematic structural diagram of the dust collector of the present invention.

Fig. 5 is a schematic structural diagram of the dust collector of the present invention.

Detailed Description

The invention will be further explained with reference to the following figures and examples:

referring to fig. 1-2, the insulator suspension rod of the present embodiment includes a cross arm 100, a suspension ring 110 is mounted on the cross arm 100, the suspension ring 110 is fastened and assembled with and fixed to a suspension buckle 210, the suspension buckle 210 is disposed on a damper 200, the damper 200 is assembled and fixed to one end of a suspension rod 300 through a piston rod 220, the suspension rod 300 may be a V-shaped suspension rod, and at this time, the other ends of the two suspension rods 300 are connected and fixed through a connecting member 310. An insulator 320 is fixed on the suspension rod 300, and when the suspension rod is used, a cable is fixed through the insulator 320.

The damper 200 comprises a damping shell 230, a hollow damping cavity 231 is arranged in the damping shell 230, a piston 240 is arranged in the damping cavity 231, damping liquid 270 is filled in the damping cavity 231, the piston can only slide in the axial direction of the damping cavity, a diversion groove 241 is arranged on the piston 240, and the diversion groove 241 is used for enabling the damping liquid on the two sides of the piston to be communicated and flow;

the piston 240 is fixedly assembled with one end of the piston rod 220, a spring 260 is installed between one end face, close to the piston rod, of the piston and the damping cavity 231, and the spring 260 is used for providing a reset force for the piston after the piston slides. In this embodiment, two ends of the spring may be welded and fixed to the inner end surfaces of the piston 240 and the damping cavity 231, respectively.

The other end of the piston rod 220 passes through the damping housing 230 and then is assembled and fixed with the suspension rod 300, and the piston rod 220 and the damping housing 230 are sealed by a sealing ring 250. In use, the seal ring 250 provides a seal between the piston rod and the damping housing whether the piston rod 220 is stationary or sliding axially, thereby preventing leakage of damping fluid.

When the cable swings, the piston rod can drive the piston to synchronously move in the axial direction, and the piston reduces the vibration force through damping liquid and the spring, so that the swinging frequency is interfered to avoid resonance, and meanwhile, the pulling force in the swinging process is buffered, so that faults or disasters caused by the swinging of the cable due to wind power are effectively prevented.

Referring to fig. 3-5, since the part of the piston rod extending out of the damping chamber is contacted with air all the year round, solid particles in the air are easy to attach to the outer surface of the piston rod, once the piston rod enters the sealing ring, the sealing ring is worn, and the service life of the damper is seriously affected due to the large abrasion amount of the sealing ring, so that the applicant adds a dust removing assembly to remove impurities on the outer surface of the piston rod.

The dust remover 400 comprises a dust removing shell 410, wherein two ends of the dust removing shell 410 are respectively provided with a protective shell 411 and an end cover 412, the protective shell 411 is fixed on the damping shell 230, a mounting cavity 413 is further arranged in the dust removing shell 410, a cleaning brush 420 is mounted in the mounting cavity 413, and the cleaning brush 420 circumferentially rotates by taking the axis of the cleaning brush as the center;

a cleaning hole 421 is arranged in the cleaning brush 420, bristles 423 are fixed on the inner wall of the cleaning hole 421, and the bristles are perpendicular to the inner wall of the cleaning hole 421;

the end of the cleaning brush 420 close to the damper is provided with a face tooth part 424, the face tooth part 424 is in meshing transmission with a second gear 432, the second gear 432 is fixed on a shaft body 440, a first gear 431 is also fixed on the shaft body 440, the first gear 431 is in meshing transmission with a rack part 221 so as to form a gear-rack transmission mechanism, and the rack part 221 is arranged on the piston rod 220.

In order to avoid poor sealing effect of the sealing ring on the rack part, the rack part 221 of the embodiment is provided with tooth grooves which are sunken towards the inside of the piston rod, when the sealing ring is used, the tooth grooves are meshed with the first gear for transmission, and intervals are arranged between every two tooth grooves, so that the sealing ring is pressed against the interval part to realize sealing. And when in use, a small amount of damping fluid can be brought out to the first gear, so that lubrication between the damping fluid and the first gear can be realized. The damping fluid of the present embodiment may be replaced with liquid lubricating oil. Both ends of the shaft body 440 are rotatably assembled with the side wall of the protective shell 411.

Preferably, in order to facilitate the timely discharge of the cleaned dust, applicant further provides a first taper hole 422 at the bottom of the cleaning brush 420, and a second taper hole 4121 at the end cap 412, wherein the first taper hole 422 and the second taper hole 4121 together form a taper hole. When in use, dust falls from the taper hole.

Preferably, in order to avoid the loss of the damping fluid, the sliding portion 222 is provided at a portion of the piston rod 220 that can pass through the sealing ring and enter the damping cavity, the sliding portion 222 does not protrude out of the cleaning brush, and the sliding portion 222 is not provided with a spline, so that the loss of the damping fluid can be effectively avoided. In addition, the cleaning brush can prevent external solid particles from entering the sliding part 222, thereby prolonging the service life of the sealing ring.

During the use, piston rod axial displacement to drive first gear, second gear rotation, the second gear is through driving the brush cleaner circumferential direction with the partial meshing of terminal surface tooth, thereby makes the brush hair scrub the piston rod surface, in order to realize the cleanness to the piston rod surface.

The details of the present invention are well known to those skilled in the art.

The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the teachings of the present invention without undue experimentation. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.

Claims

1. A damper is characterized in that: the damping device comprises a damping shell, wherein a hollow damping cavity is arranged in the damping shell, a piston is arranged in the damping cavity, and damping liquid is filled in the damping cavity;

2. The damper of claim 1, wherein: the piston is provided with a diversion trench which is used for enabling the damping liquid on the two sides of the piston to be communicated and flow.

3. The damper of claim 1, wherein: and a spring is arranged between one end surface of the piston, which is close to the piston rod, and the damping cavity.

4. An insulator jib, characterized by: use of a damper according to any of claims 1-3.

5. An insulator hanger rod according to claim 4, wherein: still include the cross arm, install rings on the cross arm, rings and suspension clasp block assembly, fixed, the suspension clasp sets up on the attenuator, and the attenuator passes through the piston rod and jib one end assembly is fixed, be fixed with the insulator on the jib.

6. An insulator hanger rod according to claim 5, wherein: the hanger rods are V-shaped hanger rods, two hanger rods are hung at the moment, and the other ends of the two hanger rods are fixedly connected through a connecting piece.

7. An insulator hanger rod according to any one of claims 4 to 6, wherein: the dust remover comprises a dust removing shell, wherein a protective shell and an end cover are respectively arranged at two ends of the dust removing shell, the protective shell is fixed on the damping shell, an installation cavity is also arranged in the dust removing shell, and a cleaning brush is arranged in the installation cavity;

8. An insulator hanger rod according to claim 7, wherein: the brush hair is perpendicular to the inner wall of the cleaning hole.

9. An insulator hanger rod according to claim 7, wherein: the bottom of the cleaning brush is provided with a first taper hole, the end cover is provided with a second taper hole, and the first taper hole and the second taper hole form a taper hole together.

10. An insulator hanger rod according to claim 7, wherein: the part of the piston rod which can penetrate through the sealing ring and enter the damping cavity is a sliding part, the sliding part does not penetrate out of the cleaning brush, and a tooth groove is not formed in the sliding part.