CN220410346U - Forged bolt-free integral hanger, contact wire and carrier cable hanger wire clamp - Google Patents

Abstract

The utility model discloses a forged bolt-free integral hanger, a contact wire and a carrier cable hanger wire clamp, and relates to an electrified railway contact net erection device. The utility model relates to a forged bolt-free integral dropper, which comprises a dropper wire, a contact wire dropper wire clamp and a carrier wire dropper wire clamp, wherein the contact wire dropper wire clamp and the carrier wire dropper wire clamp are connected at two ends of the hanger wire, the contact wire dropper wire clamp consists of a detachable contact wire left half dropper wire clamp and a contact wire right half dropper wire clamp which have the same structure, the contact wire dropper wire clamp and the contact wire right half dropper wire clamp are inserted together by clamping and anti-loosening devices by taking a vertical shaft as a symmetrical shaft, and the carrier wire dropper wire clamp consists of a detachable carrier wire left half dropper wire clamp and a carrier wire right half dropper wire clamp which have the same structure, and the contact wire dropper wire clamp and the carrier wire right half dropper wire clamp are inserted together by taking the vertical shaft as the symmetrical shaft. The forged bolt-free integral hanger has the advantages of low operation cost and long service life.

Description

Forged bolt-free integral hanger, contact wire and carrier cable hanger wire clamp

Technical Field

The utility model relates to an electrified railway contact net erection device, in particular to an integral hanger.

Background

Integral hanger wires are one of the key components on the contact net. The basic function is to hang the contact wire smoothly on the carrier cable.

The most widely used type of stamping type integral hanger is manufactured by stamping a copper alloy plate with proper size at room temperature. When in installation, the integral hanger wire and the contact line and the carrier cable are connected into a whole through the fastening bolt.

Because the contact net has elasticity, the contact net can vibrate under the excitation of the pantograph. The operation practice shows that the integral hanger adopting the structure for the high-speed rail with severe vibration has a certain potential safety hazard, and firstly, the integral hanger has a plurality of movable joints which are easy to wear in vibration and are easy to break in severe cases. Secondly, the fastening bolt is loosened due to vibration, the fact that the nut is easy to fall off is not found in time, and particularly the fact that the bearing cable clamp falls off can cause the whole dropper to suspend in the air, and the bow net fault is easy to be caused when the pantograph passes through. In order to prevent the occurrence of the faults, a large amount of manpower and material resources are input in the operation to monitor and check the operation states of key stressed parts such as the whole dropper, and the operation cost is increased.

Therefore, there is an urgent need for a contact wire clamp, a carrier wire clamp, and an integral hanger that are low in operating cost and long in service life.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a forged bolt-free integral hanger with low operation cost and long service life, a contact wire hanger wire clamp and a carrier cable hanger wire clamp.

The utility model relates to a contact wire dropper wire clamp, which comprises a detachable contact wire left half dropper wire clamp and a contact wire right half dropper wire clamp, wherein the contact wire left half dropper wire clamp and the contact wire right half dropper wire clamp have the same structure, and are inserted together by taking a vertical shaft as a symmetrical shaft through a clamping anti-loose device, the insertion matching surfaces of the contact wire left half dropper wire clamp and the contact wire right half dropper wire clamp are a stepped contact wire left half dropper wire clamp inclined surface and a contact wire right half dropper wire clamp inclined surface, the left part and the right part of the contact wire left half dropper wire clamp inclined surface are respectively provided with a contact wire left half dropper wire clamp anti-loose tooth and a contact wire left half dropper wire clamp anti-loose female tooth, the left part and the right part of the contact wire right half dropper wire clamp inclined surface are respectively provided with a contact wire right half dropper wire clamp anti-loose female tooth and a contact wire right half dropper wire clamp anti-loose male tooth, the left half string clamp anti-loosening tooth of the contact line and the right half string clamp anti-loosening tooth of the contact line and the left half string clamp anti-loosening tooth of the contact line and the right half string clamp anti-loosening tooth of the contact line form the clamping anti-loosening device, the clamping anti-loosening device is positioned at the middle layers of the left half string clamp body and the right half string clamp body of the contact line, the lower layers of the bodies of the left half string clamp and the right half string clamp of the contact line and the transverse axis of the body of the contact line are respectively provided with a string clamping claw, the two string clamping claws are respectively matched with a string clamping groove of the clamped contact line, the left end face of the middle part of the left half string clamp body of the contact line and the right end face of the middle part of the right half string clamp body of the contact line are respectively provided with a first threading round hole and a second threading round hole, the first threading round hole and the second threading round hole are arranged in parallel, under the half string clamp clamping state of contact line left side, the half string clamp clamping state of contact line right side, first threading round hole is linked together and not coaxial with the second threading round hole, and the distance between the axis of first threading round hole and the axis of second threading round hole is S, and S is greater than 0, and first threading round hole and second threading round hole are the through-hole, and the axis of first threading round hole with the axis of second threading round hole with the horizontal axis of contact line string clamp body is the symmetry axis, the upper strata of the body of the half string clamp of contact line left side, the half string clamp of contact line right side is equipped with rings left and right semi-rings under the contact line, rings left semi-rings under the contact line and rings right semi-rings under the contact line are fixed under the cooperation of rings.

The utility model discloses a contact line dropper wire clamp, wherein an auxiliary anti-loosening boss and an auxiliary anti-loosening groove are arranged on a left half ring of a lower lifting ring of a contact line, an auxiliary anti-loosening groove matched with the auxiliary anti-loosening boss and an auxiliary anti-loosening boss matched with the auxiliary anti-loosening groove are arranged on a right half ring of the lower lifting ring of the contact line, the auxiliary anti-loosening boss is embedded into the auxiliary anti-loosening groove to be fixed, and the auxiliary anti-loosening boss is embedded into the auxiliary anti-loosening groove to be fixed.

The utility model discloses a contact wire hanger wire clamp, wherein guide planes are arranged on left and right semi-rings of a lower hanging ring of a contact wire.

The utility model relates to a carrier cable dropper clamp, which consists of a detachable carrier cable left half dropper clamp and a carrier cable right half dropper clamp, wherein the carrier cable left half dropper clamp and the carrier cable right half dropper clamp have the same structure and are inserted together by taking a vertical shaft as a symmetrical shaft through an anti-loosening clamping device, the insertion matching surfaces of the carrier cable left half dropper clamp and the carrier cable right half dropper clamp are stepped inclined planes, the left part and the right part of the inclined planes are respectively provided with an anti-loosening male tooth of the carrier cable left half dropper clamp and an anti-loosening female tooth of the carrier cable left half dropper clamp, the left part and the right part of the inclined planes are respectively provided with an anti-loosening male tooth of the carrier cable left half dropper clamp and an anti-loosening male tooth of the carrier cable right half dropper clamp which are respectively meshed with the female tooth of the carrier cable left half dropper clamp, the left half string clamp and the right half string clamp of the carrier rope are respectively provided with a semicircular cylinder body by taking the transverse axis of the string clamp body of the carrier rope as a symmetrical axis, the inner hole of the cylinder body formed by the two semicircular cylinders is matched with the carrier rope, the left end face of the middle part of the string clamp body of the carrier rope left half string clamp body and the right end face of the middle part of the string clamp body of the carrier rope right half string clamp body are respectively provided with a first threading round hole and a second threading round hole, the first threading round hole and the second threading round hole are arranged in parallel, the first threading round hole is communicated with the first threading round hole and is different from the first threading round hole in a clamping state of the string clamp of the carrier rope left half string clamp and the string clamp right half string clamp, the distance between the axis of the first threading round hole and the axis of the second threading round hole is S ', S' is larger than 0, the first threading round hole and the second threading round hole are through holes, the axis of the first threading round hole and the axis of the second threading round hole are symmetrical shafts with the transverse axis of the carrier cable hanger wire clamp body, the lower layer of the body of the carrier cable left half hanger wire clamp and the carrier cable right half hanger wire clamp is provided with a carrier cable upper hanging ring left half ring and a carrier cable right half ring, and the carrier cable upper hanging ring left half ring and the carrier cable upper hanging ring right half ring are matched and fixed to form an upper hanging ring.

The utility model discloses a carrier cable dropper wire clamp, wherein a carrier cable upper lifting ring left semi-ring auxiliary anti-loosening boss and a carrier cable upper lifting ring left semi-ring auxiliary anti-loosening groove are arranged on a carrier cable upper lifting ring left semi-ring, a carrier cable upper lifting ring right semi-ring auxiliary anti-loosening groove matched with the carrier cable upper lifting ring left semi-ring auxiliary anti-loosening boss, a carrier cable upper lifting ring right semi-ring auxiliary anti-loosening boss matched with the carrier cable upper lifting ring left semi-ring auxiliary anti-loosening groove are arranged on a carrier cable upper lifting ring right semi-ring, the carrier cable upper lifting ring left semi-ring auxiliary anti-loosening boss is embedded into the carrier cable upper lifting ring right semi-ring auxiliary anti-loosening groove to be fixed, and the carrier cable upper lifting ring right semi-ring auxiliary anti-loosening boss is embedded into the carrier cable upper lifting ring left semi-ring auxiliary anti-loosening groove to be fixed.

The utility model relates to a carrier cable dropper clamp, wherein a guide plane is arranged on a left half ring and a right half ring of a lifting ring on a carrier cable.

The utility model discloses a forged bolt-free integral hanger, which comprises a contact wire hanger wire clamp, a carrier cable hanger wire clamp and a hanger wire, wherein: the upper heart-shaped protecting ring is sleeved on the upper hanging ring, the lower heart-shaped protecting ring is sleeved on the lower hanging ring, a flexible protecting sleeve is sleeved on the outer surface of the wire body in a shrinking mode, the upper end of the wire body bypasses the upper heart-shaped protecting ring and is inserted into the first threading round hole and the second threading round hole and is clamped, the lower end of the wire body bypasses the lower heart-shaped protecting ring and is inserted into the first threading round hole and the second threading round hole and is clamped, the upper pressure-connection pipe is close to the end portion of the upper heart-shaped protecting ring and is wrapped and pressed on the two folded wire bodies, and the lower pressure-connection pipe is close to the end portion of the lower heart-shaped protecting ring and is wrapped and pressed on the two folded wire bodies.

The forged bolt-free integral hanger disclosed by the utility model has the advantages that the curvature of the curved surface of the upper hanging ring, which is in contact with the upper heart-shaped protecting ring, is the same, and the curvature of the curved surface of the lower hanging ring, which is in contact with the lower heart-shaped protecting ring, is the same.

The utility model discloses a forged bolt-free integral hanger, wherein a contact wire hanger wire clamp and a carrier cable hanger wire clamp are made of copper nickel disilicon.

The utility model discloses a forged bolt-free integral hanger, wherein the forming mode of a contact wire hanger wire clamp body and a carrier wire hanger wire clamp body is die forging.

The forged bolt-free integral hanger is different from the prior art in that in the utility model, the contact wire hanger wire clamp, the carrier cable hanger wire clamp and the hanger wire are all of a bolt-free structure, thereby avoiding the contact net fault caused by bolt loosening or the extra workload caused by periodic bolt loosening inspection and reducing the operation cost; the contact wire hanger wire clamp and the carrier cable hanger wire clamp are manufactured by adopting a die forging process, are suitable for mass production, reduce the production time, and simultaneously have the advantages of simple wire clamp structure, convenient installation and disassembly, repeated use and further reduced cost; the forged bolt-free integral hanger disclosed by the utility model is light in weight, about 0.02kg lighter than that of each set of common stamping integral hanger, about 600 ten thousand integral hangers are used on line in a whole path, and if half of the forged bolt-free integral hanger adopts the mode, 6 ten thousand kilograms of copper materials can be saved, and the cost is saved by about 360 ten thousand yuan; experiments show that when the running speed is 350km/h, the fatigue life is at least more than 2 times of that of the existing product, and when the running speed is increased to 400km/h, the product is the only product capable of passing the fatigue test in China at present, namely the forged bolt-free integral hanger is excellent, the replacement times are reduced, the maintenance cost is saved, and the service life is long.

The forged screwless integral hanger of the present utility model is further described below with reference to the accompanying drawings.

Drawings

FIG. 1 is a front view of a forged, bolt-less integral hanger of the present utility model;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is a left side view of the forged, bolt-less integral hanger of the present utility model;

FIG. 4 is a cross-sectional view taken along line B-B of FIG. 3;

FIG. 5 is a left side view of the contact wire hanger clip, also after the left half of the contact wire hanger clip has been mated with the right half of the contact wire hanger clip;

FIG. 6 is a cross-sectional view taken along line C-C of FIG. 5;

FIG. 7 is a schematic view of the left half hanger wire clip of the contact wire prior to insertion with the right half hanger wire clip of the contact wire;

FIG. 8 is a perspective view of FIG. 7;

FIG. 9 is a perspective view of the left half hanger wire clip of the contact wire in mating engagement with the right half hanger wire clip of the contact wire;

FIG. 10 is a bottom view of FIG. 7;

FIG. 11 is a schematic illustration of the location of the outer pressing ramp of the contact wire right half hanger clamp;

FIG. 12 is a schematic view of the location of the outer pressing ramp of the left half hanger clamp of the contact wire;

FIG. 13 is a left side view of a messenger wire clamp;

FIG. 14 is a cross-sectional view taken along line D-D of FIG. 13;

FIG. 15 is a schematic view of a left half hanger wire clip of a carrier cable prior to insertion with a right half hanger wire clip of the carrier cable;

fig. 16 is a perspective view of fig. 15;

FIG. 17 is a schematic view of the locations of the catenary clip stub holes of the right half of the catenary;

FIG. 18 is a bottom view of FIG. 15;

FIG. 19 is a schematic view of the location of the outer compaction ramp of the right half hanger wire clamp of the carrier cable;

FIG. 20 is a schematic view of the location of the outer compaction ramp of the left half hanger wire clamp of the carrier cable;

FIG. 21 is a perspective view of a forged, bolt-less integral hanger of the present utility model.

Detailed Description

As shown in fig. 1-4 and 21, the forged bolt-less integral hanger 1000 of the present utility model comprises a contact wire hanger wire clip 100, a carrier wire hanger wire clip 200, and a hanger wire 300.

The contact wire dropper clamp 100, as shown in fig. 5, 6 and 10, consists of a detachable contact wire left half dropper clamp 1 and a contact wire right half dropper clamp 1', wherein the contact wire left half dropper clamp 1 and the contact wire right half dropper clamp 1' have the same structure and are inserted together by taking a vertical axis as a symmetry axis through a clamping anti-loose device 12, the insertion matching surface of the contact wire left half dropper clamp 1 and the contact wire right half dropper clamp 1 'is a contact wire left half dropper clamp inclined surface 11 and a contact wire right half dropper clamp inclined surface 11', as shown in fig. 11 and 12, the left part of the contact wire left half dropper clamp inclined surface 11 is a contact wire left half dropper clamp outer compression inclined surface 1111 and the right part is a contact wire left half dropper clamp inner compression inclined surface 1112', the left part of the inclined surface 11' is a contact wire right half dropper clamp outer compression inclined surface 1111', the left and right parts of the contact line left half hanger wire clamp inclined plane 11 are respectively provided with a contact line left half hanger wire clamp anti-loosening male tooth 111 and a contact line left half hanger wire clamp anti-loosening female tooth 112, the left and right parts of the contact line right half hanger wire clamp inclined plane 11' are respectively provided with a contact line right half hanger wire clamp anti-loosening female tooth 111 'respectively meshed with the contact line left half hanger wire clamp anti-loosening male tooth 111 and the contact line left half hanger wire clamp anti-loosening female tooth 112', the contact line left half hanger wire clamp anti-loosening male tooth 111 and the contact line right half hanger wire clamp anti-loosening female tooth 111', the contact line left half hanger wire clamp anti-loosening female tooth 112 and the contact line right half hanger wire clamp anti-loosening male tooth 112' form a clamping anti-loosening device 12, and the clamping anti-loosening device 12 is positioned on the contact line left half hanger wire clamp 1 Middle layer of right half dropper clamp 1' body.

As shown in fig. 5, a lower layer of the body of the left half dropper clamp 1 and the right half dropper clamp 1 'of the contact line is provided with a clamping claw with the transverse axis of the body of the dropper clamp of the contact line as a symmetry axis, and the two clamping claws 141 and 141' are respectively matched with a clamping groove 6001 of the clamped contact line 600 (see fig. 2 and 3).

As shown in fig. 6, 8 and 9, a first threading round hole 18 and a second threading round hole 18 'are respectively formed in the left end face of the middle part of the body of the contact line left half-string clamp 1 and the right end face of the middle part of the body of the contact line right half-string clamp 1', the first threading round hole 18 and the second threading round hole 18 'are arranged in parallel, the first threading round hole 18 and the second threading round hole 18' are communicated and are not coaxial in a clamping state of the contact line left half-string clamp 1 and the contact line right half-string clamp 1', the distance between the axis of the first threading round hole 18 and the axis of the second threading round hole 18' is S (see fig. 5 and 6), the S is larger than 0, the first threading round hole 18 and the second threading round hole 18 'are through holes, and the axis of the first threading round hole 18 and the axis of the second threading round hole 18' take the transverse axis of the contact line string clamp body as a symmetrical axis.

As shown in fig. 5 and 7, the upper layers of the bodies of the left half dropper clamp 1 and the right half dropper clamp 1' are provided with a left half ring 101 and a right half ring 101' of the lower lifting ring, and the left half ring 101 and the right half ring 101' of the lower lifting ring are matched and fixed to form a lower lifting ring 10. As shown in fig. 11 and 12, the left half ring 101 and the right half ring 101 'of the lower lifting ring of the contact line are provided with matched guiding planes 102 and 102'.

As shown in fig. 10, a left half ring 101 of the contact wire is provided with a left half ring auxiliary locking boss 1011 of the contact wire and a left half ring auxiliary locking groove 1012 of the contact wire, a right half ring auxiliary locking groove 1011 'of the contact wire matched with the left half ring auxiliary locking boss 1011 of the contact wire is provided with a right half ring auxiliary locking groove 1011' of the contact wire matched with the left half ring auxiliary locking groove 1012 of the contact wire, the left semi-ring auxiliary anti-loosening boss 1011 of the lower contact line lifting ring is embedded into the right semi-ring auxiliary anti-loosening groove 1011 'of the lower contact line lifting ring and the right semi-ring auxiliary anti-loosening boss 1012' of the lower contact line lifting ring is embedded into the left semi-ring auxiliary anti-loosening groove 1012 of the lower contact line lifting ring and is fixed.

13, 14 and 18, a carrier cable dropper clamp 200 is composed of a detachable carrier cable left half dropper clamp 2 and a carrier cable right half dropper clamp 2', the carrier cable left half dropper clamp 2 and the carrier cable right half dropper clamp 2' have the same structure, and are inserted together by using a vertical shaft as a symmetrical shaft through a looseness-preventing clamping device 22, the insertion matching surface of the carrier cable left half dropper clamp 2 and the carrier cable right half dropper clamp 2 'is a stepped carrier cable left half dropper clamp inclined surface 21 and a carrier cable right half dropper clamp inclined surface 21', the left part of the carrier cable left half dropper clamp inclined surface 21 is a carrier cable left half dropper clamp outer inclined surface 2111, the right part is a carrier cable left half dropper clamp inner inclined surface 2, the left part of the carrier cable right half dropper clamp inclined surface 21 'is a carrier cable right half dropper clamp inner inclined surface 2112', and the right part is a carrier cable right half dropper clamp outer inclined surface 2111', as shown in FIGS. 19 and 20. The left and right parts of the inclined surface 21 of the left half hanger wire clamp of the carrier rope are respectively provided with a left half hanger wire clamp anti-loosening male tooth 211 of the carrier rope, a left half hanger wire clamp anti-loosening female tooth 212 of the carrier rope, a left and right part of the inclined surface 21' of the right half hanger wire clamp of the carrier rope are respectively provided with a right half hanger wire clamp anti-loosening male tooth 211 of the carrier rope, a left half hanger wire clamp anti-loosening female tooth 212 of the carrier rope, a right half hanger wire clamp anti-loosening female tooth 211', a right half hanger wire clamp anti-loosening male tooth 212', a left half hanger wire clamp anti-loosening male tooth 211 of the carrier rope, a right half hanger wire clamp anti-loosening female tooth 211 'of the carrier rope, a left half hanger wire clamp female tooth 212 of the carrier rope, a right half hanger wire clamp anti-loosening male tooth 212' of the carrier rope form anti-loosening clamping devices 22, and the anti-loosening clamping devices 22 are positioned on the left half hanger wire clamp 2 of the carrier rope, middle layer of the main body of the right half hanger wire clamp 2' of the carrier wire.

As shown in fig. 13, the upper layers of the main bodies of the left half hanger wire clamp 2 and the right half hanger wire clamp 2' of the carrier rope are respectively provided with semi-circular cylinders 241 and 241' by taking the transverse axis of the hanger wire clamp main body of the carrier rope as a symmetrical axis, and the inner holes of the cylinders formed by the two semi-circular cylinders 241 and 241' are matched with the carrier rope 700.

As shown in fig. 14, a first threading round hole 28 and a second threading round hole 28' are respectively formed in the left end face of the middle part of the body of the left half-string-hanging wire clamp 2 of the carrier rope and the right end face of the middle part of the body of the right half-string-hanging wire clamp 2' of the carrier rope, the first threading round hole 28 and the second threading round hole 28' are arranged in parallel, the first threading round hole 28 and the second threading round hole 28' are communicated and are not coaxial in a clamping state of the left half-string-hanging wire clamp 2' of the carrier rope and the right half-string-hanging wire clamp 2' of the carrier rope, the distance between the axis of the first threading round hole 28 and the axis of the second threading round hole 28' is S ', S ' is greater than 0, the first threading round hole 28 and the second threading round hole 28' are through holes, and the axis of the first threading round hole 28 and the axis of the second threading round hole 28' are symmetrical shafts with the transverse axis of the body of the carrier rope-hanging wire clamp.

As shown in fig. 13 and 15, the lower layer of the body of the carrier left half hanger wire clamp 2 and the carrier right half hanger wire clamp 2' is provided with a carrier upper ring left semi-ring 201 and a carrier upper ring right semi-ring 201', and the carrier upper ring left semi-ring 201 and the carrier upper ring right semi-ring 201' are matched and fixed to form an upper ring 20. As shown in fig. 19 and 20, the left half ring 201 of the upper lifting ring of the carrier rope and the right half ring 201 'of the upper lifting ring of the carrier rope are provided with matched guiding planes 202 and 202'.

15-20, a carrier cable upper ring left half ring 201 is provided with a carrier cable upper ring left half ring auxiliary locking boss 2011, a carrier cable upper ring left half ring auxiliary locking groove 2012, a carrier cable upper ring right half ring 201 'is provided with a carrier cable upper ring right half ring auxiliary locking groove 2011' matched with the carrier cable upper ring left half ring auxiliary locking boss 2011', a carrier cable upper ring right half ring auxiliary locking boss 2012' matched with the carrier cable upper ring left half ring auxiliary locking groove 2012, the carrier cable upper ring left half ring auxiliary locking boss 2011 is embedded into the carrier cable upper ring right half ring auxiliary locking groove 2011 'to be fixed, and the carrier cable upper ring right half ring auxiliary locking boss 2012' is embedded into the carrier cable upper ring left half ring auxiliary locking groove 2012 to be fixed.

As shown in fig. 1-4 and 21, the hanging string 300 comprises a string body 31, an upper crimping tube 32, a lower crimping tube 33, an upper heart-shaped protecting ring 34 and a lower heart-shaped protecting ring 35, wherein the upper heart-shaped protecting ring 34 is sleeved on the upper hanging ring 20, the lower heart-shaped protecting ring 35 is sleeved on the lower hanging ring 10, a flexible protecting sleeve 36 is sleeved on the outer surface of the string body 31 in a shrinking manner, the upper end of the string body 31 bypasses the upper heart-shaped protecting ring 34 and is inserted into a first threading round hole 28 and a second threading round hole 28 'and is clamped, the lower end of the string body 31 bypasses the lower heart-shaped protecting ring 35 and is inserted into a first threading round hole 18 and a second threading round hole 18' and is clamped, the upper crimping tube 32 is close to the end of the upper heart-shaped protecting ring 34 and is wrapped and pressed on the two folded string bodies, and the lower crimping tube 33 is close to the end of the lower heart-shaped protecting ring 35 and is wrapped and pressed on the two folded string bodies. Wherein the curvature of the curved surface of the upper suspension ring 20 contacting the upper heart-shaped guard ring 34 is the same, and the curvature of the curved surface of the lower suspension ring 10 contacting the lower heart-shaped guard ring 35 is the same.

The contact wire hanger wire clamp 100 and the carrier wire hanger wire clamp 200 are made of copper nickel disilicon, and are formed in a die forging mode.

As shown in fig. 1-4, the installation process of the forged bolt-free integral hanger of the present utility model is as follows:

(1) Mounting a contact wire sling wire clip 100:

according to the design requirements, the lengths of the hanging string and the short connecting line (the part which is wound around the lower heart-shaped protecting ring 35 and is inserted into the first threading round hole 18 and the second threading round hole 18') are measured, and a flexible protecting sleeve 36 with the length of 350mm is sleeved on the lower end of the hanging string and contracted by the electric hair drier. Then, the upper and lower crimping pipes 33 and the lower heart-shaped protecting ring 35 are sequentially arranged at the two ends of the hanging string sleeved with the flexible protecting sleeve, the hanging string is threaded out of the lower crimping pipe 33 after being wound around the heart-shaped protecting ring, the hanging string is tensioned on the crimping platform, the pressing pipe 33 is pressed down under the specified pressure after the specified gap is reserved between the lower crimping pipe 33 and the lower heart-shaped protecting ring 35, and after the lower crimping pipe 33 is subjected to plastic deformation, one end of the hanging string with the flexible protecting sleeve 36, the lower heart-shaped protecting ring 35 and the short connecting line is prefabricated successfully.

The prefabricated short wire is inserted into the first threading round hole 18 and out of the second threading round hole 18', the lower heart-shaped protecting ring 35 is sleeved into the lower hanging ring 10, and then the groove 6001 on the small surface of the contact wire 600 is placed into the wire clamping claws 141 and 141'. After the left half string clamp and the right half string clamp of the contact line are inserted into each other by hand, a special installation tool is used for applying force until the end surfaces of the left half string clamp and the right half string clamp of the contact line are level with each other. The straight tooth engagement sound (i.e., the sound of the female tooth engaging Yang Ya) can be heard during installation. After flush in place, a fully functional contact wire string clip is formed and clamps the short run of the string 300 and the contact wire 600.

(2) Installing a messenger wire hanger wire clamp 200:

according to the design requirements, the lengths of the strings and the short links (the parts which bypass the upper heart-shaped guard ring 34 and are inserted into the first threading round hole 28 and the second threading round hole 28') are measured, and a flexible protective sleeve 36 with the length of 350mm is sleeved on the upper end of the strings and contracted by the electric hair drier. The upper crimping pipe 32 and the heart-shaped protecting ring 34 are sequentially arranged at two ends of the hanging string sleeved with the flexible protecting sleeve 36, the hanging string penetrates out of the upper crimping pipe 32 after being wound around the heart-shaped protecting ring, the hanging string is tensioned on the crimping platform, the pressure connecting pipe 32 is pressed under the specified pressure after the specified gap is reserved between the upper crimping pipe 32 and the upper heart-shaped protecting ring 34, and after the plastic deformation of the upper crimping pipe 32, the hanging string with the flexible protecting sleeve 36, the upper heart-shaped protecting ring 34 and the short connecting line at one end is prefabricated successfully.

The prefabricated short connecting wire is inserted from the first threading round hole 28, inserted from the second threading round hole 28', sleeved into the upper hanging ring 20 by the upper heart-shaped protecting ring 34, and then the carrier rope is put into a cylinder body formed by the two semicircular cylinders 241 and 241'. After the left half string clamps and the right half string clamps of the carrier cable are inserted into each other by hands, the carrier cable is stressed by a special installation tool until the end surfaces of the left half string clamps and the right half string clamps of the carrier cable are level with each other. The straight tooth engagement sound (i.e., the sound of the female tooth engaging Yang Ya) can be heard during installation. After the components are flush in place, a fully functional messenger wire clip 200 is formed and clamps the stub wires and messenger wires.

The principle and the functions of the forged bolt-free integral hanger are as follows:

1. principle of screwless clamping: the wire clamp structure can ensure that after two parts are mutually inserted, any one half wire clamp is pushed by external force, the half wire clamp can oppositely run along the inclined plane of the other half wire clamp, the thrust generated along the inclined plane can be regarded as the composition of two mutually perpendicular component forces, the horizontal component force (parallel to the wire clamping groove) enables the two parts to oppositely run, and finally the end surfaces of the two parts are flush, so that the complete bolt-free dropper wire clamp is formed. The other vertical component force (perpendicular to the wire clamping groove) enables the two parts to be close to each other, and due to the reasonable inclined plane design, when the end faces of the two parts are flush, the contact wire or the carrier rope is just clamped, so that the requirement that the contact wire and the carrier rope can be clamped without bolts is met.

2. Principle of looseness prevention: two sets of straight racks (i.e., female teeth, yang Ya) are designed and arranged at both ends of the half wire clip. When the end faces of the two half wire clamps are flush, the two sets of straight racks can be meshed with each other and bear positive pressure generated by clamping force. The reasonable tooth shape design can ensure that the wire clamp is always kept in a locking state and cannot be automatically loosened. And can ensure that the disassembly can be conveniently performed under the action of the disassembly force when the disassembly is required. In addition, two groups of boss-groove combinations are further arranged on the hanging ring of the wire clamp, after the two half wire clamps are aligned, the hanging ring is semicircular, the bosses and the grooves are embedded into each other, no external force is applied, the embedded bosses and grooves cannot be opened by themselves, and the double anti-loosening principle of the wire clamp is adopted.

3. Conductive principle of wire clip: after the two half wire clamps are aligned, because the central lines of the short wire connecting holes deviate from each other (namely, the central lines of the first wire connecting hole and the second wire connecting hole deviate from each other), the wire clamp contact position forms a fixed electric contact with the short wire connecting hole, and the current can be transmitted in a low resistance state without generating additional heating of contact points.

The method comprises the following steps: the central lines of the short connecting line threading holes deviate from each other, so that the outline of the contact part is elliptical, and after the short connecting line passes through the elliptical section of the contact part, the shape is changed, so that the fixed electric contact in the extrusion state is formed. Under the action of potential difference between the carrier cable and the contact wire, current flows into the wire clamp from the short connecting wire through the electric contact surface, so that the current is transferred in a low-resistance state. This is the conductive principle of the wire clip.

4. The repeated use principle is as follows: and force in opposite directions is applied to the two racks, so that the number of teeth for meshing the racks is increased, and the anti-loosening effect is increased. And conversely, the reverse force is applied to the rack plate, the tooth number of the rack meshing is reduced, and the anti-loosening effect is reduced. The repeated disassembly is to apply reverse force to the rack by using the disassembly tool, so that the meshing teeth number of the rack plate is continuously reduced, and finally the wire clamp is opened, which is the repeated disassembly principle of the wire clamp.

5. The method for improving the fatigue life of the integral hanger comprises the following steps: the string is formed by twisting 7 copper alloy thin wires with the diameter of only 0.5mm, and the best force transmission mode of the string is to transmit and distribute stress by mutual extrusion, friction and the like between inner strands in a twisted state. The integral hanger is not only subjected to frost, rain, snow, environmental corrosion and the like in nature, but also has static tension generated by suspending the contact wire and dynamic tension caused by vibration and the like, so that the integral hanger is not noticed slightly in the links of manufacturing, mounting, maintenance and the like, the optimal force transmission mode of the stranded wire is possibly damaged, hidden danger is left, and monofilament or single strand breakage easily occurs in operation.

The fatigue life of the whole dropper is affected by a plurality of factors, wherein the magnitude of the crimping force, the fretting friction between the dropper line and the short connecting line and the like are the most critical. Experiments prove that the flexible protective sleeves are sleeved on the two ends of the hanging string and the short connecting wire and are contracted, and the shape and the size of the crimping die are properly adjusted, so that the crimping force is reduced, and the fatigue life of the whole hanging string can be greatly prolonged. The mechanism is as follows: after the flexible protective sleeve is sleeved on the string and contracted, the string is acted by the contraction force pointing to the circle center, the strands of the string tend to be held tightly, the strands of the string and the strands tend to be held tightly, and the best stress mode of the stranded wire is the integral stress in the stranded state without strand scattering, so that the string sleeved with the flexible protective sleeve has better integrity and more reasonable stress distribution.

6. Because the diameter of the monofilament is only 0.5mm, if tiny interaction occurs between wires, the surface of the monofilament is extremely easy to scratch, and further the conditions of broken wires and broken strands are caused, and the surface contact between the suspended string and the short connecting wire is directly isolated by the flexible protective sleeve, so that the micro friction caused by the surface contact between the original two wires is solved.

7. The existing crimping method is that a circular hanging string and a short connecting wire are inserted into an elliptic crimping pipe, and are transversely crimped by a die, the three parts are provided with gaps, the gaps reduce the contact area between the wires and the pipes, the sliding friction between the wire and the tube is reduced. In order to meet the standard requirement, the pressurizing force is required to be increased, but the excessive pressurizing force can scatter the hanging string, so that uneven stress distribution on the cross section of the hanging string is caused, and the wire breakage is easy to occur, so that the service life is influenced. In the application, after the flexible protective sleeve is contracted, gaps are filled, the contact area between wires is increased, the surface of the flexible protective sleeve is rough, the friction coefficient is larger than that of a copper plate, and when the sliding force is kept the same, the crimping force can be properly reduced, so that the damage to the wires is reduced.

The forged bolt-free integral hanger has the following advantages:

1. the structure without the bolts avoids the contact net fault caused by loosening of the bolts or the extra workload caused by periodically checking the loosening of the bolts.

2. The wire clamp is manufactured by adopting a die forging process, and is suitable for mass production. The forging process is adopted in the production process, the crystal grains of the forged part are uniform, the material is compact, and the internal defects are few. The parts produced by the forging process have good comprehensive mechanical properties such as macroscopic strength, toughness, fatigue resistance and the like.

3. The wire clamp is designed into a symmetrical structure, and only one set of die is used during production, so that the processing cost can be reduced, and the uniformity of the wire clamp produced is very good, so that the stress of the wire clamp is more reasonable, and the work is more reliable. The wire clamp has novel principle, simple structure, convenient installation and disassembly and repeated use.

4, the weight is light, which is about 0.02kg lighter than that of a common punching hanging string. If about 600 ten thousand integral hanging strings are used on line in a whole way and half of the hanging strings are used in the way, 6 ten thousand kilograms of copper materials can be saved, and the cost is saved by about 360 ten thousand yuan.

5. The fatigue resistance is very excellent. According to the test method specified by the iron mark, when the running speed is 350km/h, the fatigue life is at least more than 2 times of that of the existing product, and when the running speed is increased to 400km/h, the product is the only product capable of passing the fatigue test in China at present. The excellent fatigue resistance can prolong the service life of the whole hanger, reduce the replacement times and save the maintenance cost.

The above examples are only illustrative of the preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model, and various modifications and improvements made by those skilled in the art to the technical solution of the present utility model should fall within the scope of protection defined by the claims of the present utility model without departing from the spirit of the present utility model.

Claims (10)

1. The utility model provides a contact wire dropper clamp comprises half dropper clamp (1) in detachable contact wire left side and half dropper clamp (1') in contact wire right side, its characterized in that: the left half hanger wire clamp (1) of the contact wire and the right half hanger wire clamp (1') of the contact wire have the same structure and are inserted together by taking a vertical shaft as a symmetrical shaft through a clamping and anti-loose device (12),

the contact wire left half string clamp (1) and the contact wire right half string clamp (1 ') are respectively provided with a contact wire left half string clamp inclined plane (11) and a contact wire right half string clamp inclined plane (11 '), the left part and the right part of the contact wire left half string clamp inclined plane (11) are respectively provided with a contact wire left half string clamp anti-loosening tooth (111) and a contact wire left half string clamp anti-loosening female tooth (112), the left part and the right part of the contact wire right half string clamp inclined plane (11 ') are respectively provided with a contact wire right half string clamp anti-loosening female tooth (111) and a contact wire right half string clamp anti-loosening female tooth (112 ') which are respectively meshed with the contact wire left half string clamp anti-loosening tooth (111 '), the contact wire right half string clamp anti-loosening female tooth (112 '), the contact wire left half string clamp anti-loosening female tooth (111) and the contact wire right half string clamp anti-loosening female tooth (111 ') and the contact wire right half string clamp anti-loosening female tooth (112 ') form the clamping device (12), the clamping device (12) is positioned on the contact wire body (1 ') and the contact wire body of the left half string clamp,

the lower layers of the bodies of the left half string hanging clamp (1) and the right half string hanging clamp (1 ') of the contact line are respectively provided with a clamping claw by taking the transverse axis of the body of the string hanging clamp of the contact line as a symmetrical axis, the two clamping claws (141, 141') are respectively matched with the clamping grooves of the clamped contact line,

the left end face of the middle part of the contact line left half-string clamp (1) body is provided with a first threading round hole (18), the right end face of the middle part of the contact line right half-string clamp (1 ') body is provided with a second threading round hole (18'), the first threading round hole (18) and the second threading round hole (18 ') are arranged in parallel, in the clamping state of the contact line left half-string clamp (1) and the contact line right half-string clamp (1'), the first threading round hole (18) is communicated with the second threading round hole (18 ') and is not coaxial, the distance between the axis of the first threading round hole (18) and the axis of the second threading round hole (18') is S, S is larger than 0, the axes of the first threading round hole (18) and the second threading round hole (18 ') are through holes, the axis of the first threading round hole (18) and the axis of the second threading round hole (18') take the transverse axis of the contact line clamp body as a symmetrical axis,

the upper layer of the body of the contact line left half string clamp (1) is provided with a contact line lower hanging ring left semi-ring (101), the upper layer of the body of the contact line right half string clamp (1 ') is provided with a contact line lower hanging ring right semi-ring (101 '), and the contact line lower hanging ring left semi-ring (101) and the contact line lower hanging ring right semi-ring (101 ') are matched and fixed to form a lower hanging ring (10).

2. The contact wire hanger clip of claim 1, wherein: the contact line lower lifting ring left semi-ring (101) is provided with a contact line lower lifting ring left semi-ring auxiliary anti-loosening boss (1011) and a contact line lower lifting ring left semi-ring auxiliary anti-loosening groove (1012), the contact line lower lifting ring right semi-ring (101 ') is provided with a contact line lower lifting ring right semi-ring auxiliary anti-loosening groove (1011') matched with the contact line lower lifting ring left semi-ring auxiliary anti-loosening boss (1012), the contact line lower lifting ring left semi-ring auxiliary anti-loosening boss (1011) is embedded into the contact line lower lifting ring right semi-ring auxiliary anti-loosening groove (1011 ') to be fixed, and the contact line lower lifting ring right semi-ring auxiliary anti-loosening boss (1012') is embedded into the contact line lower lifting ring left semi-ring auxiliary anti-loosening groove (1012) to be fixed.

3. The contact wire hanger clip of claim 2, wherein: and guide planes are arranged on the left and right semi-rings (101, 101') of the lower lifting ring of the contact line.

4. The utility model provides a carrier cable dropper clamp (200), comprises half dropper clamp (2) on left side of detachable carrier cable and half dropper clamp (2') on right side of carrier cable, its characterized in that: the left half hanger wire clamp (2) of the carrier cable and the right half hanger wire clamp (2') of the carrier cable have the same structure and are inserted together by using a vertical shaft as a symmetrical shaft through a locking clamping device (22),

the splicing matching surfaces of the left half hanger wire clamp (2) and the right half hanger wire clamp (2 ') of the carrier cable are stepped inclined planes (21) of the left half hanger wire clamp of the carrier cable and inclined planes (21 ') of the right half hanger wire clamp of the carrier cable, the left part and the right part of the inclined planes (21) of the left half hanger wire clamp of the carrier cable are respectively provided with an anti-loosening male tooth (211) of the left half hanger wire clamp of the carrier cable and an anti-loosening female tooth (212) of the left half hanger wire clamp of the carrier cable, the left part and the right part of the inclined plane (21 ') of the right half-string clamp of the carrier rope are respectively provided with a carrier rope right half-string clamp anti-loosening female tooth (211), a carrier rope left half-string clamp anti-loosening female tooth (211 '), a carrier rope right half-string clamp anti-loosening male tooth (212 ') which are respectively meshed with the carrier rope left half-string clamp anti-loosening female tooth (212), the carrier rope left half-string clamp anti-loosening female tooth (211 ') and the carrier rope right half-string clamp anti-loosening female tooth (211 '), the carrier rope left half-string clamp anti-loosening female tooth (212) and the carrier rope right half-string clamp anti-loosening male tooth (212 ') form the anti-loosening clamping device (22), the anti-loosening clamping device (22) is positioned in the middle layer of the carrier rope left half-string clamp (2) body and the carrier rope right half-string clamp (2 ') body,

the upper layers of the bodies of the left half hanger wire clamp (2) and the right half hanger wire clamp (2 ') of the carrier cable are respectively provided with semicircular cylinders (241, 241 ') taking the transverse axis of the carrier cable hanger wire clamp body as a symmetrical axis, the inner holes of the cylinders formed by the two semicircular cylinders (241, 241 ') are matched with the carrier cable,

the left end face of the middle part of the carrier rope left half dropper clamp (2) body is provided with a first threading round hole (28), the right end face of the middle part of the carrier rope right half dropper clamp (2 ') body is provided with a second threading round hole (28'), the first threading round hole (28) and the second threading round hole (28 ') are arranged in parallel, in the clamping state of the carrier rope left half dropper clamp (2) and the carrier rope right half dropper clamp (2'), the first threading round hole (28) is communicated with the second threading round hole (28 ') and is not coaxial, the distance between the axis of the first threading round hole (28) and the axis of the second threading round hole (28') is greater than 0, the first threading round hole (28) and the second threading round hole (28 ') are through holes, the axis of the first threading round hole (28) and the axis of the second threading round hole (28') are symmetrical shafts,

the lower layer of the body of the carrier cable left half hanger wire clamp (2) is provided with a carrier cable upper hanging ring left semi-ring (201), the lower layer of the body of the carrier cable right half hanger wire clamp (2 ') is provided with a carrier cable upper hanging ring right semi-ring (201 '), and the carrier cable upper hanging ring left semi-ring (201) and the carrier cable upper hanging ring right semi-ring (201 ') are matched and fixed to form an upper hanging ring (20).

5. The messenger wire hanger of claim 4, wherein: the auxiliary anti-loosening device is characterized in that an auxiliary anti-loosening boss (2011) of an upper lifting ring left semi-ring of the carrier rope and an auxiliary anti-loosening groove (2012) of the upper lifting ring left semi-ring of the carrier rope are arranged on the left semi-ring (201) of the upper lifting ring of the carrier rope, an auxiliary anti-loosening groove (2011 ') of an upper lifting ring right semi-ring of the carrier rope matched with the auxiliary anti-loosening boss (2011) of the upper lifting ring left semi-ring of the carrier rope and an auxiliary anti-loosening boss (2012 ') of an upper lifting ring right semi-ring of the carrier rope matched with the auxiliary anti-loosening groove (2012) of the upper lifting ring left semi-ring of the carrier rope are arranged on the right semi-ring (201 ') of the upper lifting ring of the carrier rope, the auxiliary anti-loosening boss (2012 ') of the upper lifting ring right semi-ring of the carrier rope is embedded into the auxiliary anti-loosening groove (2012 ') of the upper lifting ring of the carrier rope to be fixed.

6. The messenger wire hanger of claim 5, wherein: the left half ring (201) of the lifting ring on the carrier cable and the right half ring (201') of the lifting ring on the carrier cable are provided with guide planes.

7. A forged bolt-less integral hanger (1000), characterized by: comprising a contact wire hanger wire clip (100) as claimed in any of claims 1-3, a messenger hanger wire clip (200) as claimed in any of claims 4-6, a hanger wire (300), wherein: the suspended string (300) comprises a string body (31), an upper crimping pipe (32) and a lower crimping pipe (33), an upper heart-shaped protecting ring (34) and a lower heart-shaped protecting ring (35), wherein the upper heart-shaped protecting ring (34) is sleeved on the upper hanging ring (20), the lower heart-shaped protecting ring (35) is sleeved on the lower hanging ring (10), a flexible protecting sleeve (36) is sleeved on the outer surface of the string body (31) in a shrinking manner, the upper end of the string body (31) bypasses the upper heart-shaped protecting ring (34) and is inserted into a first threading round hole (28) and a second threading round hole (28 ') and is clamped, the lower end of the string body (31) bypasses the lower heart-shaped protecting ring (35) and is inserted into a first threading round hole (18) and a second threading round hole (18') and is clamped, the upper crimping pipe (32) is close to the end of the upper heart-shaped protecting ring (34) and is wrapped and pressed on the two folded string bodies, and the lower crimping pipe (33) is close to the end of the lower heart-shaped protecting ring (35) and is wrapped and pressed on the two folded string bodies.

8. The forged screwless integral hanger of claim 7, wherein: the curvature of the curved surface of the upper hanging ring (20) contacted with the upper heart-shaped guard ring (34) is the same, and the curvature of the curved surface of the lower hanging ring (10) contacted with the lower heart-shaped guard ring (35) is the same.

9. The forged screwless integral hanger of claim 8, wherein: the contact wire hanging string clamp (100) and the carrier cable hanging string clamp (200) are made of copper nickel disilicon.

10. The forged screwless integral hanger of claim 9, wherein: the contact wire hanging string clamp (100) body and the carrier cable hanging string clamp (200) body are formed in a die forging mode.