CN2147663Y - Cross dump wire clamp - Google Patents

Abstract

The utility model relates to a cross damping wire clamp which is composed of a wire clamp body 1, a wire clamp cover 2, a sleeve pipe 3, a liner bushing 12, a screw bolt and a screw nut, wherein, the sleeve pipe 3 and the wire clamp body 1 are cast into a whole or fixed together in an oblique crossing way. The wire clamp body 1 is hinged with one end of the wire clamp cover 2. The other end of the wire clamp body 1 and the wire clamp cover 2 are connected by the screw bolt 6 and the screw nut 8. The wire clamp body 1 and the wire clamp cover 2 are combined to form a circular hole in which the liner bushing 12 is arranged. Both ends of a hinging wire are respectively connected with the utility model, and resonance frequency of the hinging wire can reach 4-90Hz, which can effectively put an end to the germination of wire steady state vibration. The utility model has the advantage that the utility model connected with a wire can not be worn out and has no broken strand and no looseness; the utility model with light weight and long service life can satisfy requirements of low-frequency and high-frequency vibration resistance of largely spanning wires.

Description

Cross dump wire clamp

The utility model relates to electricity and mechanical engineering technical field, specifically a kind of intersection damping wire clamp that is used for crossing over greatly transmission line wire and lightning conducter vibrationproof.

Cross in the work transmission line big, the vibrationproof problem of aerial condutor and lightning conducter (calling electric wire in the following text) is paid attention to by people always, and its reason is that the vibration of electric wire can produce the possibility of broken string, thereby the major accident that electric power networks has a power failure takes place.The big leap electric wire of high pressure overhead power line is owing to the influence that is subjected to natural environments such as extraneous meteorological condition such as ice, wind, temperature, and the difference of the structure of electric wire, material and its physical property, when the intrinsic frequency of vibration frequency that produces when trolley wire and electric wire is close, can produce the electric wire covibration, its randomness is big, when aeolian vibration, belong to the high frequency category, generally at 3-70HZ; When vibrating, regelation (is commonly called as and waves) genus low frequency category, generally at 0.1-3HZ.The former movement locus is many with vertical up-or-down movement, and continuous longer when each, it is also bigger to produce probability; Latter's movement locus ovalize is turning motion up and down, and continuous shorter when each, it is also less to produce probability, and its harm latter is more serious than the former.Big at present aerial condutor and the lightning conducter of crossing over transmission line generally uses stockbridge damper and damping wire, to overcome the high and low frequency vibration of electric wire.So far so nearly 20 big conductor vibrations of crossing over of being built according to domestic the fifties break stock market affairs rough estimates, in the disconnected stock market affairs that account for 30% are former, account for the overwhelming majority because of what vibration-proof equipment was not good at, their useful life is generally only about 10 years, do not reach the requirement of technical specification: i.e. 220KV electric pressure 〉=30 year, 500KV electric pressure 〉=50 year.(4R) stockbridge damper of Italy SALVI company and (FR) stockbridge damper of Ministry of Energy's Nanjing electric armour clamp Research Institute are considered to have advanced international standard, though their resonance frequency band has been brought up to 10-50HZ, vibrationproof problem to general line wires has had improvement, but still do not reach the requirement of big leap electric wire resonance frequency band broad (about 4-90HZ), the high and low frequency that occurs on the big span line can not compatible be protected; They and electric wire all are that Metal Contact connects, and tightening can the damage electric wire, unscrew and tightly very easily do not get loose because of expanding with heat and contract with cold, thereby weakened their vibration-isolating effect; Their structure member weight is also bigger than normal, forms dead nodal point easily at itself and electric wire junction.

The purpose of this utility model provides a kind of resonance frequency band broad, connect with electric wire do not wear and tear, constantly strand, do not get loose, in light weight, long service life is applicable to the intersection damping wire clamp of big leap transmission line vibrationproof.

The purpose of this utility model is to realize like this, constitute by wire clamp body, wire dress cover, sleeve pipe, bolt, nut, lining, sleeve pipe is fixed on the axial line of wire clamp body one end and sleeve pipe and the angle of wire clamp body axial line is 15-30 ° of wire clamp body and the hinge joint of wire dress cover one end, their other end is connected by bolt, nut, between wire clamp body that combines and the wire dress cover circular hole is arranged, the center of circular hole and the axial line of sleeve pipe are on same straight line, and lining is assemblied in the circular hole.

Lining is the neoprene cylinder, and its inboard has notch, and the notch middle part is fluted, and the aluminium cushion block is rabbeted in notch and groove.

Be connected on the bolt of wire clamp body and wire dress cover one end and be equipped with the butterfly pad.

Insert respectively at the two ends of a twisted wire that crimping has just constituted one pair of intersection damping device in the sleeve pipe of the present utility model, its is installed on electric wire, just can utilize its lace sag (twisted wire) as balance wheel, when electric wire is consistent with its resonance frequency, balance wheel then is the center of circle with the wire axis, the lace sag is a radius, swing back and forth along certain angle direction, stop the sprouting of electric wire steady-state vibration rapidly and effectively, its resonance frequency can reach 4-90HZ, can satisfy the high and low frequency vibrationproof specification requirement of the big leap electric wire of high pressure overhead power line fully, it can be optimized layout according to various electric wire vibrationproof schemes with different natural frequencies, only need determine to intersect the length of lace, number, angles etc. just can reach the vibration-isolating effect of expection.The utility model adopts oblique arm sleeve structure form, and its gradient is pressed the tangential direction matching Design of lace sag, connects cooperation closely, rationally, has guaranteed the transmission and the release of kinetic energy, has overcome the phenomenon that gets loose of electric wire.Lining and conductive aluminium cushion block have improved its self-damping performance, the utility model and electric wire equipotential have been guaranteed, and avoided directly contacting with the electric wire metal and electric wire wearing and tearing and disconnected thigh taking place, prolong its useful life largely, thereby satisfied the prior art code requirement.The utility model is selected aluminium or other lightweight metal material manufacturing for use, and it is in light weight, and smooth surface has good self anti-corona ability, and itself and electric wire junction can not form dead nodal point.

Describe in detail below in conjunction with embodiment accompanying drawing of the present utility model.

Fig. 1: the utility model embodiment 1 structural representation;

The end view of Fig. 2: embodiment 1;

Bush structure schematic diagram among Fig. 3: the embodiment 1;

Fig. 4: present embodiment 1 and twisted wire connection diagram;

Fig. 5: the utility model embodiment 4 front views;

Fig. 6: embodiment 4 end views;

Fig. 7: the utility model user mode schematic diagram.

As shown in Figure 1 and Figure 2, an end of wire clamp body 1 and sleeve pipe 3 obliques and cast solid, wire clamp body 1 axial line and sleeve pipe 3 axial lines angle α=15-30 °, wherein α=20 ° are best, hole depth h=50-150mm in the sleeve pipe 3, wherein h=100mm is advisable.Wire clamp body 1 other end is two and cranks arm, all there is semicircle orifice and corresponding on concentric line each middle inboard of cranking arm, the radius in hole matches with the radius of institute's wire connecting, two sides of cranking arm of wire clamp body 1 have wire dress cover 2 with matching respectively, wire dress cover 2 also is two and cranks arm, semicircle orifice on also all there is semicircle orifice each centre of cranking arm and wire clamp body 1 is cranked arm is corresponding, and when wire clamp body 1 and wire dress cover 2 were closed up, two semicircle orifices just formed a circular hole; The end of cranking arm of online clamp 1 and wire dress cover 2 all has the otic placode 4 of adapting device, and toggle 5 interts makes wire clamp body 1 and wire dress cover 2 hinged in otic placode 4; Wherein the axial line of the center of the axial line of toggle 5, circular hole and sleeve pipe 3 is all on same axis; The other end of cranking arm of online clamp 1 and wire dress cover 2 all has bolt connecting hole respectively symmetrically, bolt 6 and 7 respectively cross-under wherein, the bolt 6 and 7 the other end are with flat shim 10 and shim 11, and have nut 8 and 9 to spin with it respectively.The wire clamp body 1 here, wire dress cover 2, sleeve pipe 3 are all selected other lightweight metal material making such as aluminum or aluminum alloy for use.Online clamp 1 and wire dress cover 2 close up that device has columnar neoprene lining 12 in the formed circular hole, lining 12 as shown in Figure 3, its external diameter matches with Circularhole diameter, internal diameter matches with institute wire connecting diameter, a side has the notch 13 of a loose about 15mm in the lining 12 along axis, dug little groove 14 at the middle part of notch 13, aluminium cushion block 15 matches with notch 13 and groove 14 size shape and merges interlocking wherein.Present embodiment is a most preferred embodiment.During use, the two ends of twisted wire 16 are inserted in the sleeve pipe 3 of present embodiment respectively and crimping, wherein the wire dress cover 2 of the present embodiment of an end is in the left side along the twisted wire direction, and the wire dress cover 2 of the present embodiment of the other end is on the right side (referring to Fig. 4) along the twisted wire direction.Screw off nut 8 and 9, open wire dress cover 2 electric wire is inserted in the lining 12 from notch 13, wire dress cover 2 tightly is spun on nut 8 and 9 on bolt 6 and 7 respectively after closing up with wire clamp body 1 again, and like this a plurality of (referring to Fig. 7) is installed on electric wire.

Embodiment 2:

Present embodiment is on embodiment 1 basis, two of wire clamp body 1 one ends are cranked arm change into one and crank arm, the wire dress cover 2 of corresponding with it two formations of cranking arm of wire clamp body 1 one sides is also changed into one and is cranked arm, be socketed with flat shim 10 and dish-shaped pad 11 on the bolt 6 of connecting line clamp 1 and wire dress cover 2, nut 8 is screwed on the bolt 6, and other structure is identical with embodiment 1.Occupation mode is also identical with embodiment 1.

Embodiment 3:

Present embodiment is on embodiment 1 basis, with wire clamp body 1 one ends two on crank arm and change into three and crank arm, the wire dress cover 2 of corresponding with it two formations of cranking arm of wire clamp body 1 one sides is also changed into three and is cranked arm, all be socketed with flat shim 10 dish-shaped pads 11 respectively on each bolt of connecting line clamp 1 and wire dress cover 2, other structure is identical with embodiment 1.Occupation mode is also identical with embodiment 1.

The utility model can also be changed into four or a plurality of with cranking arm of wire clamp body 1 one ends, and corresponding with it wire dress cover 2 also changes four or a plurality of cranking arm into, and other version is also identical with embodiment 1.Occupation mode is also identical with embodiment 1.

Embodiment 4:

As Fig. 5, shown in Figure 6, wire clamp body 1 one ends and sleeve pipe 3 are by bolt 17, nut 18 fixedly oblique connects, angle α=the 15-30 of wire clamp body 1 axial line and casing axis line °, the hole depth h=50-150mm of sleeve pipe 3, there is semicircle orifice the other end inboard of online clamp 1, the radius of semicircle orifice matches with the radius that is connected electric wire, one side of online clamp 1 has wire dress cover 2, one end of wire dress cover 2 have with wire clamp body 1 on the corresponding semicircle orifice of semicircle orifice, on near the wire clamp body 1 of semicircle orifice and wire dress cover 2, bolt connecting hole is arranged, bolt 6 cross-under are in bolt hole, and an end of bolt 6 is connected with nut 8, and are connected with flat shim and dish-shaped pad, when wire clamp body 1 combines with wire dress cover 2, their semicircle orifice constipation is combined into a circular hole, and cross-under has neoprene lining 12 in the circular hole, and the structure of lining 12 is identical with embodiment 1.Present embodiment and embodiment 2 are more approaching, and occupation mode is also identical with embodiment 1, but its practical effect is relatively poor.

Claims (7)

1, a kind of damping wire clamp that constitutes by wire clamp body 1, wire dress cover 2, bolt, nut, it is characterized in that in addition sleeve pipe 3, lining 12, sleeve pipe 3 and wire clamp body 1 oblique cast solid or oblique is fixedlyed connected and the angle=15-30 of oblique °, wire clamp body 1 is hinged with wire dress cover 2 one ends, their other end is connected by bolt 6, nut 8, and lining 12 is installed in the circular hole of 2 of wire clamp body 1 and wire dress cover.

2,, it is characterized in that lining 12 is the cylinder of chloroprene rubber material according to the described damping wire clamp of claim 1.

3, according to the described damping wire clamp of claim 1, the axial line that it is characterized in that the center of circular hole of 2 of the axial line, wire clamp body 1 of wire clamp body 1 and wire dress cover 2 hinges and wire dress cover and sleeve pipe 3 is on same straight line.

4,, it is characterized in that being connected on the bolt of wire clamp body 1 and wire dress cover 2 one ends and all be socketed with butterfly pad 11 according to the described damping wire clamp of claim 1.

5,, it is characterized in that wire clamp body 1 and wire dress cover 2 are respectively the formations of cranking arm symmetrical mutually more than according to the described damping wire clamp of claim 1.

6, according to claim 1 or 2 described damping wire clamps, it is characterized in that lining 12 inboards have the middle part of notch 13, notch 13 fluted 14,15 interlockings of aluminium cushion block are in notch 13 and groove 14.

7,, it is characterized in that wire clamp body 1, wire dress cover 2, sleeve pipe 3 are lightweight metal materials such as aluminum or aluminum alloy according to claim 1 or 5 described damping wire clamps.

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