CN201312099Y

CN201312099Y - Quadripartition conductor intelligent de-icing device

Info

Publication number: CN201312099Y
Application number: CNU2008202230224U
Authority: CN
Inventors: 张宏雁
Original assignee: Electric Power Research Institute of State Grid Sichuan Electric Power Co Ltd
Current assignee: Electric Power Research Institute of State Grid Sichuan Electric Power Co Ltd
Priority date: 2008-12-01
Filing date: 2008-12-01
Publication date: 2009-09-16
Anticipated expiration: 2018-12-01

Abstract

Disclosed is a quadripartition conductor intelligent de-icing device, wherein a shaft is arranged on a bottom board, a star cam is installed on the shaft, the four convex heads of the cam have the same shape, and are evenly distributed on the circumference, the star cam is contacted with the inner ends of four top bars which are arranged on the periphery thereof to form a cam higher pair, each top bar can form a moving pair with a sliding groove, and an insulating connecting piece for fixing a quadripartition conductor is fixed on the external end of each top bar. One end of a shape memory alloy is fixed on the bottom board, and the other end thereof is fixed on the convex head of the star cam, a spring is arranged on the other side of the convex head and is fixed between the convex head and the bottom board, a pallet self-locking unlocking mechanism is provided, a toothed plate is fixed on the bottom board, one end of a rack is hinged on the convex head, and the other end thereof is meshed with a pallet and the toothed plate, and a lever which is used to poke the pallet and lead the rack to tilt upwards for unlocking is arranged on the outer side of the gear. The quadripartition conductor intelligent de-icing device has simple structure, can automatically remove ice depending on the mechanical energy, and has the characteristics of economy, safety and environment protection.

Description

Intelligent deicer for quadripartition conductor

Technical field

The utility model relates to cable de-icing device, particularly relates to being used for frame and deciding mechanical type deicer on the transmission line conductors on quad bundled.

Background technology

In some areas of China, the snowstorm in winter may cause aerial high voltage power transmission lead accumulated ice, thereby sag and the pulling force in the lead that these accumulated ice increase the weight of transmission pressure makes lead increase.In conductors on quad bundled, this situation is even more serious.Because accumulated ice may fill up the space between each single conductor, cause the integral diameter of conductors on quad bundled to increase, weight is huge increases.In this case, to carry be exactly to cause lead slippage, broken string or fall the main cause of tower to ice.2008 in the snow disaster that China takes place, because of ice carry institute cause lead slippage, broken string and serious accident such as tower be exactly the strong clear proof of this harm.

The existing technical scheme that solves cable icing problem mainly contains electric power deicing (containing electrical heating method, electromagnetism force method, radiation method etc.) and mechanical deicing's (containing artificial hammering method) two big modes.In the electric power deicing mode, Chinese patent literature CN1150502A discloses a kind of " deicer that is used for cable deicing ", and this deicer comprises couple of conductor, is connected on the cable and along the cable spirality to twine.Lead at one end is connected to a pulse generating unit that produces electromagnetic pulse within lead, and links together at the other end.Rely on the path of electromagnetic pulse in the lead, between lead, produce repulsive force, this repulsive force vibration lead and shatter attached to the ice on the cable.In addition, CN101232165A discloses a kind of " large cross section cable deicing method ", it is conceived substantially a little is that exit with cable division place is as the heat driven end, at this place low-voltage power supply equipment is set, form the low-voltage power supply loop, the division that participates in this conducting process is heated, reaches the deicing purpose.

In mechanical deicing's mode, Chinese patent literature CN101202430A is disclosed to be a kind of " remote-control electrodynamic mechanical type line de-icing system ", it mainly is made up of walking driver element, control unit and deicing unit, under control unit control, the walking driver element is walked along power transmission line, drives the ice sheet of the broken power transmission line in deicing unit.

Above-mentioned deicer respectively has characteristics, is applicable to various certain environmental conditions.But, concerning conductors on quad bundled icing problem, a kind of perfect special-purpose solution of can't saying so.

The utility model content

The purpose of this utility model provide a kind of simple in structure, automatic de-icing is effective, the intelligent deicer for quadripartition conductor of consumed power not.

The purpose of this utility model is achieved in that a kind of intelligent deicer for quadripartition conductor, and base plate is provided with one, and a star cam is installed on the axle: four plush copper shapes of cam are identical, be distributed on (the left and right symmetry of each plush copper) on the circumference; End in contact in shape cam and four push rods that are distributed on around it, constitute the cam higher pair, every push rod and chute formation moving sets, every push rod outer end are fixedly connected with an insulated connecting piece that is used for fixing conductors on quad bundled; Marmem one end is fixed on the base plate, and the other end is fixed on the plush copper of star cam, and spring is positioned at this plush copper opposite side, and is fixed between plush copper and the base plate; Also have the ratchet self-locking release mechanism that is provided with marmem the same side: tooth plate is fixed on the base plate, tooth bar one end is hinged on the plush copper, the engagement of ratchet on the tooth bar other end and tooth plate is used to stir ratchet, tooth bar is upwarped and the lever of release is arranged on the tooth plate outside.

Above-mentioned push rod top is provided with roller.

Also be that the center is provided with another group spring and marmem symmetrically on the above-mentioned base plate with the axle center.

The present invention can be expressed as: mainly by 1, energy absorption module (variation of temperature being converted to motion) by marmem; 2, energy release module (spring is compressed or the back delivered energy that stretches); 3, self-locking module (being the self-locking device of ratchet) 4, separate lock module (being ratchet release release unit); 5, power transfer module (star cam link telecontrol equipment); 6, chute module (the chute module is that the conversion of motion with connecting rod is a rectilinear motion); 7, fixedly connected module (being to connect and the fixing device of conductors on quad bundled the conductor spacer in the alternative circuit) is formed.

When ambient temperature and humidity change in the temperature range that marmem limited, the work of energy absorption module, and make energy release module (as spring) storage power, make energy transport module (as the star cam) clockwise rotate and drive self-locking module (as ratchet) motion simultaneously.When the self-locking module reached the threshold value that sets, the lever trigger module triggers the self-locking module released energy self-locking module release (ratchet disengaging) while energy release module suddenly, makes the inhour rotation suddenly of energy transport module.Drive fixedly connected module work, make the unexpected vibration of lead generation, the accumulated ice on the prevention lead continues the accumulated ice on accumulation or the removal lead.

The beneficial effects of the utility model are:

This novel utilization memory gold alive varies with temperature the characteristic that produces deformation, by particular mechanical means, stores as spring, when storage power reaches pre-provisioning request, by release mechanism spring is released energy, produce sudden shake, thereby remove the icing on the conductors on quad bundled.Compare with immersion coating method, heating, electromagnetism force method, radiation method, artificial hammering method etc., this new structure is simple, not only economy, safety, environmental protection but also not consumed power, reach the accumulated ice that prevents and remove on the lead, and do not need any additional supply, do not need frequent maintaining, also can replace the conductor spacer in the existing line.No matter this is novel to be aspect economic benefit or the social benefit aspect all has incomparable great potential.

Description of drawings

Fig. 1 is structure chart of the present utility model (vertical view) (according to circumstances the position of alloy 1 and spring 2 can be exchanged among the figure, and promptly piston is positioned at plush copper 3a left side, and spring is positioned at the plush copper right side);

Fig. 2 is the structural representation (front view) of ratchet self-locking release mechanism shown in Figure 1.

Embodiment

Among Fig. 1,1, marmem; 2, spring; 3, star cam; 4, push rod; 5, roller; 6, ratchet self-locking release mechanism; 7, chute; 8, base plate; 9, insulated connecting piece; 10, lead.

Fig. 1 illustrates, and base plate 8 is provided with one 11 on (axle be installed in rotation on the base plate), and a star cam 3 is installed on the axle: four plush copper shapes of cam are identical, be distributed on the circumference; End in contact in shape cam 3 and four push rods 4 that are distributed on around it, constitute the cam higher pair, every push rod and a chute 7 formation moving sets, every push rod outer end are fixedly connected with an insulated connecting piece 9 that is used for fixing conductors on quad bundled 10; Marmem 1 one ends are fixed on the base plate 8, and the other end is fixed on the plush copper 3a of star cam 3, and spring 2 is positioned at this plush copper 3a opposite side, and are fixed between plush copper 3a and the base plate 8; Also have the ratchet self-locking release mechanism that is provided with marmem 1 the same side: tooth plate 6b is fixed on the base plate 8, tooth bar one end is hinged on the plush copper 3a, ratchet 6a on the tooth bar other end and tooth plate 6b engagement is used to stir ratchet, tooth bar is upwarped and the lever 6c (lever is hinged on pillar) of release is arranged on the tooth plate outside.Particularly, marmem one end is fixed on the base plate through flexible strand (metallic cable or nylon rope), and the other end is connected with the star cam through flexible strand.Generally speaking, the length of four push rods 4 is identical.Push rod 4 preferably adopts insulating material to make.Push rod 4 tops are provided with roller 5 or ball.Be that the center is provided with another group spring and marmem symmetrically also on the base plate 8 with axle 11 hearts.Insulated connecting piece 9 is an insulating sleeve, and lead penetrates insulating sleeve and fixed.

In execution mode shown in Figure 1,, make spring 2 change (be elongated or compress) simultaneously because the variation of ambient temperature and humidity makes marmem 1 change (elongating or shortening).At this moment, star cam 3 clockwise rotates, and along with the rotation of cam, drives push rod 4 and tooth bar 6a motion.The roller 5 on push rod 4 tops contacts with cam, so that a less frictional force to be provided, reduces the wearing and tearing of push rod 4 contact-making surfaces; Push rod 4 is moving linearly in chute 7, drives connector simultaneously the spacing between the conductors on quad bundled 10 is separated from each other.When cam forwarded 45 ° to, the distance between the conductors on quad bundled 10 reached maximum (among Fig. 2, the distance between pairing four leads of cam position is a minimum value).At this moment, the tooth bar of ratchet self-locking release mechanism has been moved to the threshold value that this device sets (this threshold value the general design of corner of corresponding cam less than 45 °), at this moment, lever 6c is touched and rotates by ratchet 6a, and ratchet 6a is upwarped and release (ratchet separates with tooth plate 6b), spring 2 releases energy suddenly, star cam 3 and push rod 4 return suddenly, thereby make lead produce acceleration suddenly and turn back to initial position, the power vibration removing lead that this great negative acceleration produced, the continuous vibration of lead have stoped accumulated ice to pile up or the accumulated ice on the lead is come off in the continuation on the lead.

Claims

1, a kind of intelligent deicer for quadripartition conductor is characterized in that: base plate (8) is provided with one (11), and a star cam (3) is installed on the axle: four plush copper shapes of cam are identical, be distributed on the circumference; Shape cam (3) be distributed on interior the end in contact of four push rods (4) around it, constitute the cam higher pair, every push rod and a chute (7) formation moving sets, every push rod outer end are fixedly connected with an insulated connecting piece (9) that is used for fixing conductors on quad bundled (10); Marmem (1) one end is fixed on the base plate (8), and the other end is fixed on the plush copper (3a) of star cam (3), and spring (2) is positioned at this plush copper (3a) opposite side, and is fixed between plush copper (3a) and the base plate (8); Also have the ratchet self-locking release mechanism that is provided with marmem (1) the same side: tooth plate (6b) is fixed on the base plate (8), tooth bar one end is hinged on the plush copper (3a), the engagement of ratchet on the tooth bar other end (6a) and tooth plate (6b) is used to stir ratchet, tooth bar is upwarped and the lever (6c) of release is arranged on the tooth plate outside.

2, according to the described intelligent deicer for quadripartition conductor of claim 1, it is characterized in that: described push rod (4) top is provided with roller (5).

3, according to the described intelligent deicer for quadripartition conductor of claim 2, it is characterized in that: be that the center is provided with another group spring and marmem symmetrically also on the described base plate (8) with axle (11) heart.

4, according to claim 1 or 2 or 3 described intelligent deicer for quadripartition conductor, it is characterized in that: the length of described four push rods (4) is identical.

5, according to the described intelligent deicer for quadripartition conductor of claim 4, it is characterized in that: described insulated connecting piece (9) is insulating sleeve.